From d1976fc7b7df292cd49c94742a67b517c7b8a1a9 Mon Sep 17 00:00:00 2001 From: timo Date: Sat, 3 Nov 2007 15:00:38 +0000 Subject: [PATCH] compiles on OSX (10.4.10 Intel) git-svn-id: https://zerowing.idsoftware.com/svn/radiant/GtkRadiant/branches/ZeroRadiant@181 8a3a26a2-13c4-0310-b231-cf6edde360e5 --- config.py | 16 +- libs/jpeg6/.cvsignore | 8 - libs/jpeg6/.cvswrappers | 3 - libs/jpeg6/jchuff.h | 68 -- libs/jpeg6/jcomapi.cpp | 188 ---- libs/jpeg6/jconfig.h | 82 -- libs/jpeg6/jdapimin.cpp | 800 -------------- libs/jpeg6/jdapistd.cpp | 550 ---------- libs/jpeg6/jdatasrc.cpp | 215 ---- libs/jpeg6/jdcoefct.cpp | 1450 ------------------------- libs/jpeg6/jdcolor.cpp | 734 ------------- libs/jpeg6/jdct.h | 352 ------ libs/jpeg6/jddctmgr.cpp | 540 ---------- libs/jpeg6/jdhuff.cpp | 574 ---------- libs/jpeg6/jdhuff.h | 202 ---- libs/jpeg6/jdinput.cpp | 762 ------------- libs/jpeg6/jdmainct.cpp | 1024 ------------------ libs/jpeg6/jdmarker.cpp | 1052 ------------------ libs/jpeg6/jdmaster.cpp | 558 ---------- libs/jpeg6/jdpostct.cpp | 580 ---------- libs/jpeg6/jdsample.cpp | 956 ----------------- libs/jpeg6/jdtrans.cpp | 244 ----- libs/jpeg6/jerror.cpp | 233 ---- libs/jpeg6/jerror.h | 278 ----- libs/jpeg6/jfdctflt.cpp | 336 ------ libs/jpeg6/jidctflt.cpp | 482 --------- libs/jpeg6/jinclude.h | 91 -- libs/jpeg6/jmemmgr.cpp | 2230 --------------------------------------- libs/jpeg6/jmemnobs.cpp | 206 ---- libs/jpeg6/jmemsys.h | 364 ------- libs/jpeg6/jmorecfg.h | 693 ------------ libs/jpeg6/jpeg6.vcproj | 113 -- libs/jpeg6/jpegint.h | 776 -------------- libs/jpeg6/jpgload.cpp | 167 --- libs/jpeg6/jutils.cpp | 350 ------ libs/jpeg6/jversion.h | 28 - libs/radiant_jpeglib.h | 1123 -------------------- utils.py | 5 +- 38 files changed, 17 insertions(+), 18416 deletions(-) delete mode 100644 libs/jpeg6/.cvsignore delete mode 100644 libs/jpeg6/.cvswrappers delete mode 100644 libs/jpeg6/jchuff.h delete mode 100644 libs/jpeg6/jcomapi.cpp delete mode 100644 libs/jpeg6/jconfig.h delete mode 100644 libs/jpeg6/jdapimin.cpp delete mode 100644 libs/jpeg6/jdapistd.cpp delete mode 100644 libs/jpeg6/jdatasrc.cpp delete mode 100644 libs/jpeg6/jdcoefct.cpp delete mode 100644 libs/jpeg6/jdcolor.cpp delete mode 100644 libs/jpeg6/jdct.h delete mode 100644 libs/jpeg6/jddctmgr.cpp delete mode 100644 libs/jpeg6/jdhuff.cpp delete mode 100644 libs/jpeg6/jdhuff.h delete mode 100644 libs/jpeg6/jdinput.cpp delete mode 100644 libs/jpeg6/jdmainct.cpp delete mode 100644 libs/jpeg6/jdmarker.cpp delete mode 100644 libs/jpeg6/jdmaster.cpp delete mode 100644 libs/jpeg6/jdpostct.cpp delete mode 100644 libs/jpeg6/jdsample.cpp delete mode 100644 libs/jpeg6/jdtrans.cpp delete mode 100644 libs/jpeg6/jerror.cpp delete mode 100644 libs/jpeg6/jerror.h delete mode 100644 libs/jpeg6/jfdctflt.cpp delete mode 100644 libs/jpeg6/jidctflt.cpp delete mode 100644 libs/jpeg6/jinclude.h delete mode 100644 libs/jpeg6/jmemmgr.cpp delete mode 100644 libs/jpeg6/jmemnobs.cpp delete mode 100644 libs/jpeg6/jmemsys.h delete mode 100644 libs/jpeg6/jmorecfg.h delete mode 100644 libs/jpeg6/jpeg6.vcproj delete mode 100644 libs/jpeg6/jpegint.h delete mode 100644 libs/jpeg6/jpgload.cpp delete mode 100644 libs/jpeg6/jutils.cpp delete mode 100644 libs/jpeg6/jversion.h delete mode 100644 libs/radiant_jpeglib.h diff --git a/config.py b/config.py index fb9c34fe..9b7e370d 100644 --- a/config.py +++ b/config.py @@ -1,4 +1,4 @@ -import sys, traceback, platform, re, commands +import sys, traceback, platform, re, commands, platform if __name__ != '__main__': from SCons.Script import * @@ -25,8 +25,13 @@ class Config: self.target_selected = [ 'radiant' ] self.config_selected = [ 'release' ] # those are global to each config - self.cc = 'gcc-4.1' - self.cxx = 'g++-4.1' + self.platform = platform.system() + if ( self.platform == 'Darwin' ): + self.cc = 'gcc' + self.cxx = 'g++' + else: + self.cc = 'gcc-4.1' + self.cxx = 'g++-4.1' def __repr__( self ): return 'config: target=%s config=%s' % ( self.target_selected, self.config_selected ) @@ -108,6 +113,10 @@ class Config: env.Append( LINKFLAGS = xml2libs.split( ' ' ) ) baseflags = [ '-pipe', '-Wall', '-fmessage-length=0', '-fvisibility=hidden', xml2.split( ' ' ) ] # baseflags += [ '-m32' ] + + if ( self.platform == 'Darwin' ): + env.Append( CPPPATH = [ '/Developer/SDKs/MacOSX10.4u.sdk/usr/X11R6/include' ] ) + if ( useGtk ): ( ret, gtk2 ) = commands.getstatusoutput( 'pkg-config gtk+-2.0 --cflags' ) if ( ret != 0 ): @@ -125,6 +134,7 @@ class Config: baseflags += glib.split( ' ' ) gliblibs = commands.getoutput( 'pkg-config glib-2.0 --libs' ) env.Append( LINKFLAGS = gliblibs.split( ' ' ) ) + if ( useGtkGL ): ( ret, gtkgl ) = commands.getstatusoutput( 'pkg-config gtkglext-1.0 --cflags' ) if ( ret != 0 ): diff --git a/libs/jpeg6/.cvsignore b/libs/jpeg6/.cvsignore deleted file mode 100644 index face6ad3..00000000 --- a/libs/jpeg6/.cvsignore +++ /dev/null @@ -1,8 +0,0 @@ -Debug -Release -*.ncb -*.opt -*.plg -*.001 -*.BAK -.consign diff --git a/libs/jpeg6/.cvswrappers b/libs/jpeg6/.cvswrappers deleted file mode 100644 index cdfd6d4a..00000000 --- a/libs/jpeg6/.cvswrappers +++ /dev/null @@ -1,3 +0,0 @@ -*.dsp -m 'COPY' -k 'b' -*.dsw -m 'COPY' -k 'b' -*.scc -m 'COPY' -k 'b' diff --git a/libs/jpeg6/jchuff.h b/libs/jpeg6/jchuff.h deleted file mode 100644 index 7ae05e85..00000000 --- a/libs/jpeg6/jchuff.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - - * jchuff.h - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains declarations for Huffman entropy encoding routines - - * that are shared between the sequential encoder (jchuff.c) and the - - * progressive encoder (jcphuff.c). No other modules need to see these. - - */ - - - -/* Derived data constructed for each Huffman table */ - - - -typedef struct { - - unsigned int ehufco[256]; /* code for each symbol */ - - char ehufsi[256]; /* length of code for each symbol */ - - /* If no code has been allocated for a symbol S, ehufsi[S] contains 0 */ - -} c_derived_tbl; - - - -/* Short forms of external names for systems with brain-damaged linkers. */ - - - -#ifdef NEED_SHORT_EXTERNAL_NAMES - -#define jpeg_make_c_derived_tbl jMkCDerived - -#define jpeg_gen_optimal_table jGenOptTbl - -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - - -/* Expand a Huffman table definition into the derived format */ - -EXTERN void jpeg_make_c_derived_tbl JPP((j_compress_ptr cinfo, - - JHUFF_TBL * htbl, c_derived_tbl ** pdtbl)); - - - -/* Generate an optimal table definition given the specified counts */ - -EXTERN void jpeg_gen_optimal_table JPP((j_compress_ptr cinfo, - - JHUFF_TBL * htbl, long freq[])); - diff --git a/libs/jpeg6/jcomapi.cpp b/libs/jpeg6/jcomapi.cpp deleted file mode 100644 index ebf2d791..00000000 --- a/libs/jpeg6/jcomapi.cpp +++ /dev/null @@ -1,188 +0,0 @@ -/* - - * jcomapi.c - - * - - * Copyright (C) 1994, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains application interface routines that are used for both - - * compression and decompression. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* - - * Abort processing of a JPEG compression or decompression operation, - - * but don't destroy the object itself. - - * - - * For this, we merely clean up all the nonpermanent memory pools. - - * Note that temp files (virtual arrays) are not allowed to belong to - - * the permanent pool, so we will be able to close all temp files here. - - * Closing a data source or destination, if necessary, is the application's - - * responsibility. - - */ - - - -GLOBAL void - -jpeg_abort (j_common_ptr cinfo) - -{ - - int pool; - - - - /* Releasing pools in reverse order might help avoid fragmentation - - * with some (brain-damaged) malloc libraries. - - */ - - for (pool = JPOOL_NUMPOOLS-1; pool > JPOOL_PERMANENT; pool--) { - - (*cinfo->mem->free_pool) (cinfo, pool); - - } - - - - /* Reset overall state for possible reuse of object */ - - cinfo->global_state = (cinfo->is_decompressor ? DSTATE_START : CSTATE_START); - -} - - - - - -/* - - * Destruction of a JPEG object. - - * - - * Everything gets deallocated except the master jpeg_compress_struct itself - - * and the error manager struct. Both of these are supplied by the application - - * and must be freed, if necessary, by the application. (Often they are on - - * the stack and so don't need to be freed anyway.) - - * Closing a data source or destination, if necessary, is the application's - - * responsibility. - - */ - - - -GLOBAL void - -jpeg_destroy (j_common_ptr cinfo) - -{ - - /* We need only tell the memory manager to release everything. */ - - /* NB: mem pointer is NULL if memory mgr failed to initialize. */ - - if (cinfo->mem != NULL) - - (*cinfo->mem->self_destruct) (cinfo); - - cinfo->mem = NULL; /* be safe if jpeg_destroy is called twice */ - - cinfo->global_state = 0; /* mark it destroyed */ - -} - - - - - -/* - - * Convenience routines for allocating quantization and Huffman tables. - - * (Would jutils.c be a more reasonable place to put these?) - - */ - - - -GLOBAL JQUANT_TBL * - -jpeg_alloc_quant_table (j_common_ptr cinfo) - -{ - - JQUANT_TBL *tbl; - - - - tbl = (JQUANT_TBL *) - - (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JQUANT_TBL)); - - tbl->sent_table = FALSE; /* make sure this is false in any new table */ - - return tbl; - -} - - - - - -GLOBAL JHUFF_TBL * - -jpeg_alloc_huff_table (j_common_ptr cinfo) - -{ - - JHUFF_TBL *tbl; - - - - tbl = (JHUFF_TBL *) - - (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JHUFF_TBL)); - - tbl->sent_table = FALSE; /* make sure this is false in any new table */ - - return tbl; - -} - diff --git a/libs/jpeg6/jconfig.h b/libs/jpeg6/jconfig.h deleted file mode 100644 index c727519b..00000000 --- a/libs/jpeg6/jconfig.h +++ /dev/null @@ -1,82 +0,0 @@ -/* jconfig.wat --- jconfig.h for Watcom C/C++ on MS-DOS or OS/2. */ - -/* see jconfig.doc for explanations */ - - - -#define HAVE_PROTOTYPES - -#define HAVE_UNSIGNED_CHAR - -#define HAVE_UNSIGNED_SHORT - -/* #define void char */ - -/* #define const */ - -#define CHAR_IS_UNSIGNED - -#define HAVE_STDDEF_H - -#define HAVE_STDLIB_H - -#undef NEED_BSD_STRINGS - -#undef NEED_SYS_TYPES_H - -#undef NEED_FAR_POINTERS /* Watcom uses flat 32-bit addressing */ - -#undef NEED_SHORT_EXTERNAL_NAMES - -#undef INCOMPLETE_TYPES_BROKEN - - - -#define JDCT_DEFAULT JDCT_FLOAT - -#define JDCT_FASTEST JDCT_FLOAT - - - -#ifdef JPEG_INTERNALS - - - -#undef RIGHT_SHIFT_IS_UNSIGNED - - - -#endif /* JPEG_INTERNALS */ - - - -#ifdef JPEG_CJPEG_DJPEG - - - -#define BMP_SUPPORTED /* BMP image file format */ - -#define GIF_SUPPORTED /* GIF image file format */ - -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ - -#undef RLE_SUPPORTED /* Utah RLE image file format */ - -#define TARGA_SUPPORTED /* Targa image file format */ - - - -#undef TWO_FILE_COMMANDLINE /* optional */ - -#define USE_SETMODE /* Needed to make one-file style work in Watcom */ - -#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */ - -#undef DONT_USE_B_MODE - -#undef PROGRESS_REPORT /* optional */ - - - -#endif /* JPEG_CJPEG_DJPEG */ - diff --git a/libs/jpeg6/jdapimin.cpp b/libs/jpeg6/jdapimin.cpp deleted file mode 100644 index 9086b490..00000000 --- a/libs/jpeg6/jdapimin.cpp +++ /dev/null @@ -1,800 +0,0 @@ -/* - - * jdapimin.c - - * - - * Copyright (C) 1994-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains application interface code for the decompression half - - * of the JPEG library. These are the "minimum" API routines that may be - - * needed in either the normal full-decompression case or the - - * transcoding-only case. - - * - - * Most of the routines intended to be called directly by an application - - * are in this file or in jdapistd.c. But also see jcomapi.c for routines - - * shared by compression and decompression, and jdtrans.c for the transcoding - - * case. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* - - * Initialization of a JPEG decompression object. - - * The error manager must already be set up (in case memory manager fails). - - */ - - - -GLOBAL void - -jpeg_create_decompress (j_decompress_ptr cinfo) - -{ - - int i; - - - - /* For debugging purposes, zero the whole master structure. - - * But error manager pointer is already there, so save and restore it. - - */ - - { - - struct jpeg_error_mgr * err = cinfo->err; - - i = sizeof(struct jpeg_decompress_struct); - - i = SIZEOF(struct jpeg_decompress_struct); - - MEMZERO(cinfo, SIZEOF(struct jpeg_decompress_struct)); - - cinfo->err = err; - - } - - cinfo->is_decompressor = TRUE; - - - - /* Initialize a memory manager instance for this object */ - - jinit_memory_mgr((j_common_ptr) cinfo); - - - - /* Zero out pointers to permanent structures. */ - - cinfo->progress = NULL; - - cinfo->src = NULL; - - - - for (i = 0; i < NUM_QUANT_TBLS; i++) - - cinfo->quant_tbl_ptrs[i] = NULL; - - - - for (i = 0; i < NUM_HUFF_TBLS; i++) { - - cinfo->dc_huff_tbl_ptrs[i] = NULL; - - cinfo->ac_huff_tbl_ptrs[i] = NULL; - - } - - - - /* Initialize marker processor so application can override methods - - * for COM, APPn markers before calling jpeg_read_header. - - */ - - jinit_marker_reader(cinfo); - - - - /* And initialize the overall input controller. */ - - jinit_input_controller(cinfo); - - - - /* OK, I'm ready */ - - cinfo->global_state = DSTATE_START; - -} - - - - - -/* - - * Destruction of a JPEG decompression object - - */ - - - -GLOBAL void - -jpeg_destroy_decompress (j_decompress_ptr cinfo) - -{ - - jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ - -} - - - - - -/* - - * Abort processing of a JPEG decompression operation, - - * but don't destroy the object itself. - - */ - - - -GLOBAL void - -jpeg_abort_decompress (j_decompress_ptr cinfo) - -{ - - jpeg_abort((j_common_ptr) cinfo); /* use common routine */ - -} - - - - - -/* - - * Install a special processing method for COM or APPn markers. - - */ - - - -GLOBAL void - -jpeg_set_marker_processor (j_decompress_ptr cinfo, int marker_code, - - jpeg_marker_parser_method routine) - -{ - - if (marker_code == JPEG_COM) - - cinfo->marker->process_COM = routine; - - else if (marker_code >= JPEG_APP0 && marker_code <= JPEG_APP0+15) - - cinfo->marker->process_APPn[marker_code-JPEG_APP0] = routine; - - else - - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code); - -} - - - - - -/* - - * Set default decompression parameters. - - */ - - - -LOCAL void - -default_decompress_parms (j_decompress_ptr cinfo) - -{ - - /* Guess the input colorspace, and set output colorspace accordingly. */ - - /* (Wish JPEG committee had provided a real way to specify this...) */ - - /* Note application may override our guesses. */ - - switch (cinfo->num_components) { - - case 1: - - cinfo->jpeg_color_space = JCS_GRAYSCALE; - - cinfo->out_color_space = JCS_GRAYSCALE; - - break; - - - - case 3: - - if (cinfo->saw_JFIF_marker) { - - cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */ - - } else if (cinfo->saw_Adobe_marker) { - - switch (cinfo->Adobe_transform) { - - case 0: - - cinfo->jpeg_color_space = JCS_RGB; - - break; - - case 1: - - cinfo->jpeg_color_space = JCS_YCbCr; - - break; - - default: - - WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); - - cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ - - break; - - } - - } else { - - /* Saw no special markers, try to guess from the component IDs */ - - int cid0 = cinfo->comp_info[0].component_id; - - int cid1 = cinfo->comp_info[1].component_id; - - int cid2 = cinfo->comp_info[2].component_id; - - - - if (cid0 == 1 && cid1 == 2 && cid2 == 3) - - cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */ - - else if (cid0 == 82 && cid1 == 71 && cid2 == 66) - - cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */ - - else { - - TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2); - - cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ - - } - - } - - /* Always guess RGB is proper output colorspace. */ - - cinfo->out_color_space = JCS_RGB; - - break; - - - - case 4: - - if (cinfo->saw_Adobe_marker) { - - switch (cinfo->Adobe_transform) { - - case 0: - - cinfo->jpeg_color_space = JCS_CMYK; - - break; - - case 2: - - cinfo->jpeg_color_space = JCS_YCCK; - - break; - - default: - - WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); - - cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */ - - break; - - } - - } else { - - /* No special markers, assume straight CMYK. */ - - cinfo->jpeg_color_space = JCS_CMYK; - - } - - cinfo->out_color_space = JCS_CMYK; - - break; - - - - default: - - cinfo->jpeg_color_space = JCS_UNKNOWN; - - cinfo->out_color_space = JCS_UNKNOWN; - - break; - - } - - - - /* Set defaults for other decompression parameters. */ - - cinfo->scale_num = 1; /* 1:1 scaling */ - - cinfo->scale_denom = 1; - - cinfo->output_gamma = 1.0; - - cinfo->buffered_image = FALSE; - - cinfo->raw_data_out = FALSE; - - cinfo->dct_method = JDCT_DEFAULT; - - cinfo->do_fancy_upsampling = TRUE; - - cinfo->do_block_smoothing = TRUE; - - cinfo->quantize_colors = FALSE; - - /* We set these in case application only sets quantize_colors. */ - - cinfo->dither_mode = JDITHER_FS; - -#ifdef QUANT_2PASS_SUPPORTED - - cinfo->two_pass_quantize = TRUE; - -#else - - cinfo->two_pass_quantize = FALSE; - -#endif - - cinfo->desired_number_of_colors = 256; - - cinfo->colormap = NULL; - - /* Initialize for no mode change in buffered-image mode. */ - - cinfo->enable_1pass_quant = FALSE; - - cinfo->enable_external_quant = FALSE; - - cinfo->enable_2pass_quant = FALSE; - -} - - - - - -/* - - * Decompression startup: read start of JPEG datastream to see what's there. - - * Need only initialize JPEG object and supply a data source before calling. - - * - - * This routine will read as far as the first SOS marker (ie, actual start of - - * compressed data), and will save all tables and parameters in the JPEG - - * object. It will also initialize the decompression parameters to default - - * values, and finally return JPEG_HEADER_OK. On return, the application may - - * adjust the decompression parameters and then call jpeg_start_decompress. - - * (Or, if the application only wanted to determine the image parameters, - - * the data need not be decompressed. In that case, call jpeg_abort or - - * jpeg_destroy to release any temporary space.) - - * If an abbreviated (tables only) datastream is presented, the routine will - - * return JPEG_HEADER_TABLES_ONLY upon reaching EOI. The application may then - - * re-use the JPEG object to read the abbreviated image datastream(s). - - * It is unnecessary (but OK) to call jpeg_abort in this case. - - * The JPEG_SUSPENDED return code only occurs if the data source module - - * requests suspension of the decompressor. In this case the application - - * should load more source data and then re-call jpeg_read_header to resume - - * processing. - - * If a non-suspending data source is used and require_image is TRUE, then the - - * return code need not be inspected since only JPEG_HEADER_OK is possible. - - * - - * This routine is now just a front end to jpeg_consume_input, with some - - * extra error checking. - - */ - - - -GLOBAL int - -jpeg_read_header (j_decompress_ptr cinfo, boolean require_image) - -{ - - int retcode; - - - - if (cinfo->global_state != DSTATE_START && - - cinfo->global_state != DSTATE_INHEADER) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - - - retcode = jpeg_consume_input(cinfo); - - - - switch (retcode) { - - case JPEG_REACHED_SOS: - - retcode = JPEG_HEADER_OK; - - break; - - case JPEG_REACHED_EOI: - - if (require_image) /* Complain if application wanted an image */ - - ERREXIT(cinfo, JERR_NO_IMAGE); - - /* Reset to start state; it would be safer to require the application to - - * call jpeg_abort, but we can't change it now for compatibility reasons. - - * A side effect is to free any temporary memory (there shouldn't be any). - - */ - - jpeg_abort((j_common_ptr) cinfo); /* sets state = DSTATE_START */ - - retcode = JPEG_HEADER_TABLES_ONLY; - - break; - - case JPEG_SUSPENDED: - - /* no work */ - - break; - - } - - - - return retcode; - -} - - - - - -/* - - * Consume data in advance of what the decompressor requires. - - * This can be called at any time once the decompressor object has - - * been created and a data source has been set up. - - * - - * This routine is essentially a state machine that handles a couple - - * of critical state-transition actions, namely initial setup and - - * transition from header scanning to ready-for-start_decompress. - - * All the actual input is done via the input controller's consume_input - - * method. - - */ - - - -GLOBAL int - -jpeg_consume_input (j_decompress_ptr cinfo) - -{ - - int retcode = JPEG_SUSPENDED; - - - - /* NB: every possible DSTATE value should be listed in this switch */ - - switch (cinfo->global_state) { - - case DSTATE_START: - - /* Start-of-datastream actions: reset appropriate modules */ - - (*cinfo->inputctl->reset_input_controller) (cinfo); - - /* Initialize application's data source module */ - - (*cinfo->src->init_source) (cinfo); - - cinfo->global_state = DSTATE_INHEADER; - - /*FALLTHROUGH*/ - - case DSTATE_INHEADER: - - retcode = (*cinfo->inputctl->consume_input) (cinfo); - - if (retcode == JPEG_REACHED_SOS) { /* Found SOS, prepare to decompress */ - - /* Set up default parameters based on header data */ - - default_decompress_parms(cinfo); - - /* Set global state: ready for start_decompress */ - - cinfo->global_state = DSTATE_READY; - - } - - break; - - case DSTATE_READY: - - /* Can't advance past first SOS until start_decompress is called */ - - retcode = JPEG_REACHED_SOS; - - break; - - case DSTATE_PRELOAD: - - case DSTATE_PRESCAN: - - case DSTATE_SCANNING: - - case DSTATE_RAW_OK: - - case DSTATE_BUFIMAGE: - - case DSTATE_BUFPOST: - - case DSTATE_STOPPING: - - retcode = (*cinfo->inputctl->consume_input) (cinfo); - - break; - - default: - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - } - - return retcode; - -} - - - - - -/* - - * Have we finished reading the input file? - - */ - - - -GLOBAL boolean - -jpeg_input_complete (j_decompress_ptr cinfo) - -{ - - /* Check for valid jpeg object */ - - if (cinfo->global_state < DSTATE_START || - - cinfo->global_state > DSTATE_STOPPING) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - return cinfo->inputctl->eoi_reached; - -} - - - - - -/* - - * Is there more than one scan? - - */ - - - -GLOBAL boolean - -jpeg_has_multiple_scans (j_decompress_ptr cinfo) - -{ - - /* Only valid after jpeg_read_header completes */ - - if (cinfo->global_state < DSTATE_READY || - - cinfo->global_state > DSTATE_STOPPING) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - return cinfo->inputctl->has_multiple_scans; - -} - - - - - -/* - - * Finish JPEG decompression. - - * - - * This will normally just verify the file trailer and release temp storage. - - * - - * Returns FALSE if suspended. The return value need be inspected only if - - * a suspending data source is used. - - */ - - - -GLOBAL boolean - -jpeg_finish_decompress (j_decompress_ptr cinfo) - -{ - - if ((cinfo->global_state == DSTATE_SCANNING || - - cinfo->global_state == DSTATE_RAW_OK) && ! cinfo->buffered_image) { - - /* Terminate final pass of non-buffered mode */ - - if (cinfo->output_scanline < cinfo->output_height) - - ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); - - (*cinfo->master->finish_output_pass) (cinfo); - - cinfo->global_state = DSTATE_STOPPING; - - } else if (cinfo->global_state == DSTATE_BUFIMAGE) { - - /* Finishing after a buffered-image operation */ - - cinfo->global_state = DSTATE_STOPPING; - - } else if (cinfo->global_state != DSTATE_STOPPING) { - - /* STOPPING = repeat call after a suspension, anything else is error */ - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - } - - /* Read until EOI */ - - while (! cinfo->inputctl->eoi_reached) { - - if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) - - return FALSE; /* Suspend, come back later */ - - } - - /* Do final cleanup */ - - (*cinfo->src->term_source) (cinfo); - - /* We can use jpeg_abort to release memory and reset global_state */ - - jpeg_abort((j_common_ptr) cinfo); - - return TRUE; - -} - diff --git a/libs/jpeg6/jdapistd.cpp b/libs/jpeg6/jdapistd.cpp deleted file mode 100644 index 0718fb3b..00000000 --- a/libs/jpeg6/jdapistd.cpp +++ /dev/null @@ -1,550 +0,0 @@ -/* - - * jdapistd.c - - * - - * Copyright (C) 1994-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains application interface code for the decompression half - - * of the JPEG library. These are the "standard" API routines that are - - * used in the normal full-decompression case. They are not used by a - - * transcoding-only application. Note that if an application links in - - * jpeg_start_decompress, it will end up linking in the entire decompressor. - - * We thus must separate this file from jdapimin.c to avoid linking the - - * whole decompression library into a transcoder. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* Forward declarations */ - -LOCAL boolean output_pass_setup JPP((j_decompress_ptr cinfo)); - - - - - -/* - - * Decompression initialization. - - * jpeg_read_header must be completed before calling this. - - * - - * If a multipass operating mode was selected, this will do all but the - - * last pass, and thus may take a great deal of time. - - * - - * Returns FALSE if suspended. The return value need be inspected only if - - * a suspending data source is used. - - */ - - - -GLOBAL boolean - -jpeg_start_decompress (j_decompress_ptr cinfo) - -{ - - if (cinfo->global_state == DSTATE_READY) { - - /* First call: initialize master control, select active modules */ - - jinit_master_decompress(cinfo); - - if (cinfo->buffered_image) { - - /* No more work here; expecting jpeg_start_output next */ - - cinfo->global_state = DSTATE_BUFIMAGE; - - return TRUE; - - } - - cinfo->global_state = DSTATE_PRELOAD; - - } - - if (cinfo->global_state == DSTATE_PRELOAD) { - - /* If file has multiple scans, absorb them all into the coef buffer */ - - if (cinfo->inputctl->has_multiple_scans) { - -#ifdef D_MULTISCAN_FILES_SUPPORTED - - for (;;) { - - int retcode; - - /* Call progress monitor hook if present */ - - if (cinfo->progress != NULL) - - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - - /* Absorb some more input */ - - retcode = (*cinfo->inputctl->consume_input) (cinfo); - - if (retcode == JPEG_SUSPENDED) - - return FALSE; - - if (retcode == JPEG_REACHED_EOI) - - break; - - /* Advance progress counter if appropriate */ - - if (cinfo->progress != NULL && - - (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { - - if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { - - /* jdmaster underestimated number of scans; ratchet up one scan */ - - cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; - - } - - } - - } - -#else - - ERREXIT(cinfo, JERR_NOT_COMPILED); - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - - } - - cinfo->output_scan_number = cinfo->input_scan_number; - - } else if (cinfo->global_state != DSTATE_PRESCAN) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Perform any dummy output passes, and set up for the final pass */ - - return output_pass_setup(cinfo); - -} - - - - - -/* - - * Set up for an output pass, and perform any dummy pass(es) needed. - - * Common subroutine for jpeg_start_decompress and jpeg_start_output. - - * Entry: global_state = DSTATE_PRESCAN only if previously suspended. - - * Exit: If done, returns TRUE and sets global_state for proper output mode. - - * If suspended, returns FALSE and sets global_state = DSTATE_PRESCAN. - - */ - - - -LOCAL boolean - -output_pass_setup (j_decompress_ptr cinfo) - -{ - - if (cinfo->global_state != DSTATE_PRESCAN) { - - /* First call: do pass setup */ - - (*cinfo->master->prepare_for_output_pass) (cinfo); - - cinfo->output_scanline = 0; - - cinfo->global_state = DSTATE_PRESCAN; - - } - - /* Loop over any required dummy passes */ - - while (cinfo->master->is_dummy_pass) { - -#ifdef QUANT_2PASS_SUPPORTED - - /* Crank through the dummy pass */ - - while (cinfo->output_scanline < cinfo->output_height) { - - JDIMENSION last_scanline; - - /* Call progress monitor hook if present */ - - if (cinfo->progress != NULL) { - - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - - cinfo->progress->pass_limit = (long) cinfo->output_height; - - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - - } - - /* Process some data */ - - last_scanline = cinfo->output_scanline; - - (*cinfo->main->process_data) (cinfo, (JSAMPARRAY) NULL, - - &cinfo->output_scanline, (JDIMENSION) 0); - - if (cinfo->output_scanline == last_scanline) - - return FALSE; /* No progress made, must suspend */ - - } - - /* Finish up dummy pass, and set up for another one */ - - (*cinfo->master->finish_output_pass) (cinfo); - - (*cinfo->master->prepare_for_output_pass) (cinfo); - - cinfo->output_scanline = 0; - -#else - - ERREXIT(cinfo, JERR_NOT_COMPILED); - -#endif /* QUANT_2PASS_SUPPORTED */ - - } - - /* Ready for application to drive output pass through - - * jpeg_read_scanlines or jpeg_read_raw_data. - - */ - - cinfo->global_state = cinfo->raw_data_out ? DSTATE_RAW_OK : DSTATE_SCANNING; - - return TRUE; - -} - - - - - -/* - - * Read some scanlines of data from the JPEG decompressor. - - * - - * The return value will be the number of lines actually read. - - * This may be less than the number requested in several cases, - - * including bottom of image, data source suspension, and operating - - * modes that emit multiple scanlines at a time. - - * - - * Note: we warn about excess calls to jpeg_read_scanlines() since - - * this likely signals an application programmer error. However, - - * an oversize buffer (max_lines > scanlines remaining) is not an error. - - */ - - - -GLOBAL JDIMENSION - -jpeg_read_scanlines (j_decompress_ptr cinfo, JSAMPARRAY scanlines, - - JDIMENSION max_lines) - -{ - - JDIMENSION row_ctr; - - - - if (cinfo->global_state != DSTATE_SCANNING) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (cinfo->output_scanline >= cinfo->output_height) { - - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - - return 0; - - } - - - - /* Call progress monitor hook if present */ - - if (cinfo->progress != NULL) { - - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - - cinfo->progress->pass_limit = (long) cinfo->output_height; - - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - - } - - - - /* Process some data */ - - row_ctr = 0; - - (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, max_lines); - - cinfo->output_scanline += row_ctr; - - return row_ctr; - -} - - - - - -/* - - * Alternate entry point to read raw data. - - * Processes exactly one iMCU row per call, unless suspended. - - */ - - - -GLOBAL JDIMENSION - -jpeg_read_raw_data (j_decompress_ptr cinfo, JSAMPIMAGE data, - - JDIMENSION max_lines) - -{ - - JDIMENSION lines_per_iMCU_row; - - - - if (cinfo->global_state != DSTATE_RAW_OK) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (cinfo->output_scanline >= cinfo->output_height) { - - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - - return 0; - - } - - - - /* Call progress monitor hook if present */ - - if (cinfo->progress != NULL) { - - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - - cinfo->progress->pass_limit = (long) cinfo->output_height; - - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - - } - - - - /* Verify that at least one iMCU row can be returned. */ - - lines_per_iMCU_row = cinfo->max_v_samp_factor * cinfo->min_DCT_scaled_size; - - if (max_lines < lines_per_iMCU_row) - - ERREXIT(cinfo, JERR_BUFFER_SIZE); - - - - /* Decompress directly into user's buffer. */ - - if (! (*cinfo->coef->decompress_data) (cinfo, data)) - - return 0; /* suspension forced, can do nothing more */ - - - - /* OK, we processed one iMCU row. */ - - cinfo->output_scanline += lines_per_iMCU_row; - - return lines_per_iMCU_row; - -} - - - - - -/* Additional entry points for buffered-image mode. */ - - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - - - -/* - - * Initialize for an output pass in buffered-image mode. - - */ - - - -GLOBAL boolean - -jpeg_start_output (j_decompress_ptr cinfo, int scan_number) - -{ - - if (cinfo->global_state != DSTATE_BUFIMAGE && - - cinfo->global_state != DSTATE_PRESCAN) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Limit scan number to valid range */ - - if (scan_number <= 0) - - scan_number = 1; - - if (cinfo->inputctl->eoi_reached && - - scan_number > cinfo->input_scan_number) - - scan_number = cinfo->input_scan_number; - - cinfo->output_scan_number = scan_number; - - /* Perform any dummy output passes, and set up for the real pass */ - - return output_pass_setup(cinfo); - -} - - - - - -/* - - * Finish up after an output pass in buffered-image mode. - - * - - * Returns FALSE if suspended. The return value need be inspected only if - - * a suspending data source is used. - - */ - - - -GLOBAL boolean - -jpeg_finish_output (j_decompress_ptr cinfo) - -{ - - if ((cinfo->global_state == DSTATE_SCANNING || - - cinfo->global_state == DSTATE_RAW_OK) && cinfo->buffered_image) { - - /* Terminate this pass. */ - - /* We do not require the whole pass to have been completed. */ - - (*cinfo->master->finish_output_pass) (cinfo); - - cinfo->global_state = DSTATE_BUFPOST; - - } else if (cinfo->global_state != DSTATE_BUFPOST) { - - /* BUFPOST = repeat call after a suspension, anything else is error */ - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - } - - /* Read markers looking for SOS or EOI */ - - while (cinfo->input_scan_number <= cinfo->output_scan_number && - - ! cinfo->inputctl->eoi_reached) { - - if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) - - return FALSE; /* Suspend, come back later */ - - } - - cinfo->global_state = DSTATE_BUFIMAGE; - - return TRUE; - -} - - - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - diff --git a/libs/jpeg6/jdatasrc.cpp b/libs/jpeg6/jdatasrc.cpp deleted file mode 100644 index ae95d214..00000000 --- a/libs/jpeg6/jdatasrc.cpp +++ /dev/null @@ -1,215 +0,0 @@ -/* - * jdatasrc.c - * - * Copyright (C) 1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains decompression data source routines for the case of - * reading JPEG data from a file (or any stdio stream). While these routines - * are sufficient for most applications, some will want to use a different - * source manager. - * IMPORTANT: we assume that fread() will correctly transcribe an array of - * JOCTETs from 8-bit-wide elements on external storage. If char is wider - * than 8 bits on your machine, you may need to do some tweaking. - */ - - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "radiant_jpeglib.h" -#include "jerror.h" - -//extern int leo_buf_size; // FIXME ? merged in from Alpha - replaced by my_source_mgr->src_size - -/* Expanded data source object for stdio input */ - -typedef struct { - struct jpeg_source_mgr pub; /* public fields */ - int src_size; // FIXME ? merged from Alpha - unsigned char *infile; /* source stream */ - JOCTET * buffer; /* start of buffer */ - boolean start_of_file; /* have we gotten any data yet? */ -} my_source_mgr; - -typedef my_source_mgr * my_src_ptr; - -#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */ - - -/* - * Initialize source --- called by jpeg_read_header - * before any data is actually read. - */ - -METHODDEF void -init_source (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - - /* We reset the empty-input-file flag for each image, - * but we don't clear the input buffer. - * This is correct behavior for reading a series of images from one source. - */ - src->start_of_file = TRUE; -} - - -/* - * Fill the input buffer --- called whenever buffer is emptied. - * - * In typical applications, this should read fresh data into the buffer - * (ignoring the current state of next_input_byte & bytes_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been reloaded. It is not necessary to - * fill the buffer entirely, only to obtain at least one more byte. - * - * There is no such thing as an EOF return. If the end of the file has been - * reached, the routine has a choice of ERREXIT() or inserting fake data into - * the buffer. In most cases, generating a warning message and inserting a - * fake EOI marker is the best course of action --- this will allow the - * decompressor to output however much of the image is there. However, - * the resulting error message is misleading if the real problem is an empty - * input file, so we handle that case specially. - * - * In applications that need to be able to suspend compression due to input - * not being available yet, a FALSE return indicates that no more data can be - * obtained right now, but more may be forthcoming later. In this situation, - * the decompressor will return to its caller (with an indication of the - * number of scanlines it has read, if any). The application should resume - * decompression after it has loaded more data into the input buffer. Note - * that there are substantial restrictions on the use of suspension --- see - * the documentation. - * - * When suspending, the decompressor will back up to a convenient restart point - * (typically the start of the current MCU). next_input_byte & bytes_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point must be rescanned after resumption, so move it to - * the front of the buffer rather than discarding it. - */ - -METHODDEF boolean -// FIXME ? merged in from Alpha -fill_input_buffer (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - size_t nbytes; - - if (src->src_size > INPUT_BUF_SIZE) - nbytes = INPUT_BUF_SIZE; - else - nbytes = src->src_size; - - memcpy (src->buffer, src->infile, nbytes); - - src->infile += nbytes; - src->src_size -= nbytes; - - src->pub.next_input_byte = src->buffer; - src->pub.bytes_in_buffer = nbytes; - src->start_of_file = FALSE; - - return TRUE; -} - - -/* - * Skip data --- used to skip over a potentially large amount of - * uninteresting data (such as an APPn marker). - * - * Writers of suspendable-input applications must note that skip_input_data - * is not granted the right to give a suspension return. If the skip extends - * beyond the data currently in the buffer, the buffer can be marked empty so - * that the next read will cause a fill_input_buffer call that can suspend. - * Arranging for additional bytes to be discarded before reloading the input - * buffer is the application writer's problem. - */ - -METHODDEF void -skip_input_data (j_decompress_ptr cinfo, long num_bytes) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - - /* Just a dumb implementation for now. Could use fseek() except - * it doesn't work on pipes. Not clear that being smart is worth - * any trouble anyway --- large skips are infrequent. - */ - if (num_bytes > 0) { - while (num_bytes > (long) src->pub.bytes_in_buffer) { - num_bytes -= (long) src->pub.bytes_in_buffer; - (void) fill_input_buffer(cinfo); - /* note we assume that fill_input_buffer will never return FALSE, - * so suspension need not be handled. - */ - } - src->pub.next_input_byte += (size_t) num_bytes; - src->pub.bytes_in_buffer -= (size_t) num_bytes; - } -} - - -/* - * An additional method that can be provided by data source modules is the - * resync_to_restart method for error recovery in the presence of RST markers. - * For the moment, this source module just uses the default resync method - * provided by the JPEG library. That method assumes that no backtracking - * is possible. - */ - - -/* - * Terminate source --- called by jpeg_finish_decompress - * after all data has been read. Often a no-op. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -METHODDEF void -term_source (j_decompress_ptr cinfo) -{ - /* no work necessary here */ -} - - -/* - * Prepare for input from a stdio stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing decompression. - */ - -GLOBAL void -jpeg_stdio_src (j_decompress_ptr cinfo, unsigned char *infile, int bufsize) -{ - my_src_ptr src; - - /* The source object and input buffer are made permanent so that a series - * of JPEG images can be read from the same file by calling jpeg_stdio_src - * only before the first one. (If we discarded the buffer at the end of - * one image, we'd likely lose the start of the next one.) - * This makes it unsafe to use this manager and a different source - * manager serially with the same JPEG object. Caveat programmer. - */ - if (cinfo->src == NULL) { /* first time for this JPEG object? */ - cinfo->src = (struct jpeg_source_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_source_mgr)); - src = (my_src_ptr) cinfo->src; - src->buffer = (JOCTET *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - INPUT_BUF_SIZE * SIZEOF(JOCTET)); - } - - src = (my_src_ptr) cinfo->src; - src->pub.init_source = init_source; - src->pub.fill_input_buffer = fill_input_buffer; - src->pub.skip_input_data = skip_input_data; - src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */ - src->pub.term_source = term_source; - src->infile = infile; - src->src_size = bufsize; // FIXME ? merged from Alpha - src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */ - src->pub.next_input_byte = NULL; /* until buffer loaded */ -} - diff --git a/libs/jpeg6/jdcoefct.cpp b/libs/jpeg6/jdcoefct.cpp deleted file mode 100644 index f9a1f7ec..00000000 --- a/libs/jpeg6/jdcoefct.cpp +++ /dev/null @@ -1,1450 +0,0 @@ -/* - - * jdcoefct.c - - * - - * Copyright (C) 1994-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains the coefficient buffer controller for decompression. - - * This controller is the top level of the JPEG decompressor proper. - - * The coefficient buffer lies between entropy decoding and inverse-DCT steps. - - * - - * In buffered-image mode, this controller is the interface between - - * input-oriented processing and output-oriented processing. - - * Also, the input side (only) is used when reading a file for transcoding. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - -/* Block smoothing is only applicable for progressive JPEG, so: */ - -#ifndef D_PROGRESSIVE_SUPPORTED - -#undef BLOCK_SMOOTHING_SUPPORTED - -#endif - - - -/* Private buffer controller object */ - - - -typedef struct { - - struct jpeg_d_coef_controller pub; /* public fields */ - - - - /* These variables keep track of the current location of the input side. */ - - /* cinfo->input_iMCU_row is also used for this. */ - - JDIMENSION MCU_ctr; /* counts MCUs processed in current row */ - - int MCU_vert_offset; /* counts MCU rows within iMCU row */ - - int MCU_rows_per_iMCU_row; /* number of such rows needed */ - - - - /* The output side's location is represented by cinfo->output_iMCU_row. */ - - - - /* In single-pass modes, it's sufficient to buffer just one MCU. - - * We allocate a workspace of D_MAX_BLOCKS_IN_MCU coefficient blocks, - - * and let the entropy decoder write into that workspace each time. - - * (On 80x86, the workspace is FAR even though it's not really very big; - - * this is to keep the module interfaces unchanged when a large coefficient - - * buffer is necessary.) - - * In multi-pass modes, this array points to the current MCU's blocks - - * within the virtual arrays; it is used only by the input side. - - */ - - JBLOCKROW MCU_buffer[D_MAX_BLOCKS_IN_MCU]; - - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - - /* In multi-pass modes, we need a virtual block array for each component. */ - - jvirt_barray_ptr whole_image[MAX_COMPONENTS]; - -#endif - - - -#ifdef BLOCK_SMOOTHING_SUPPORTED - - /* When doing block smoothing, we latch coefficient Al values here */ - - int * coef_bits_latch; - -#define SAVED_COEFS 6 /* we save coef_bits[0..5] */ - -#endif - -} my_coef_controller; - - - -typedef my_coef_controller * my_coef_ptr; - - - -/* Forward declarations */ - -METHODDEF int decompress_onepass - - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -METHODDEF int decompress_data - - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); - -#endif - -#ifdef BLOCK_SMOOTHING_SUPPORTED - -LOCAL boolean smoothing_ok JPP((j_decompress_ptr cinfo)); - -METHODDEF int decompress_smooth_data - - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); - -#endif - - - - - -LOCAL void - -start_iMCU_row (j_decompress_ptr cinfo) - -/* Reset within-iMCU-row counters for a new row (input side) */ - -{ - - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - - - /* In an interleaved scan, an MCU row is the same as an iMCU row. - - * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. - - * But at the bottom of the image, process only what's left. - - */ - - if (cinfo->comps_in_scan > 1) { - - coef->MCU_rows_per_iMCU_row = 1; - - } else { - - if (cinfo->input_iMCU_row < (cinfo->total_iMCU_rows-1)) - - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; - - else - - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; - - } - - - - coef->MCU_ctr = 0; - - coef->MCU_vert_offset = 0; - -} - - - - - -/* - - * Initialize for an input processing pass. - - */ - - - -METHODDEF void - -start_input_pass (j_decompress_ptr cinfo) - -{ - - cinfo->input_iMCU_row = 0; - - start_iMCU_row(cinfo); - -} - - - - - -/* - - * Initialize for an output processing pass. - - */ - - - -METHODDEF void - -start_output_pass (j_decompress_ptr cinfo) - -{ - -#ifdef BLOCK_SMOOTHING_SUPPORTED - - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - - - /* If multipass, check to see whether to use block smoothing on this pass */ - - if (coef->pub.coef_arrays != NULL) { - - if (cinfo->do_block_smoothing && smoothing_ok(cinfo)) - - coef->pub.decompress_data = decompress_smooth_data; - - else - - coef->pub.decompress_data = decompress_data; - - } - -#endif - - cinfo->output_iMCU_row = 0; - -} - - - - - -/* - - * Decompress and return some data in the single-pass case. - - * Always attempts to emit one fully interleaved MCU row ("iMCU" row). - - * Input and output must run in lockstep since we have only a one-MCU buffer. - - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - - * - - * NB: output_buf contains a plane for each component in image. - - * For single pass, this is the same as the components in the scan. - - */ - - - -METHODDEF int - -decompress_onepass (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) - -{ - - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - JDIMENSION MCU_col_num; /* index of current MCU within row */ - - JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; - - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - - int blkn, ci, xindex, yindex, yoffset, useful_width; - - JSAMPARRAY output_ptr; - - JDIMENSION start_col, output_col; - - jpeg_component_info *compptr; - - inverse_DCT_method_ptr inverse_DCT; - - - - /* Loop to process as much as one whole iMCU row */ - - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - - yoffset++) { - - for (MCU_col_num = coef->MCU_ctr; MCU_col_num <= last_MCU_col; - - MCU_col_num++) { - - /* Try to fetch an MCU. Entropy decoder expects buffer to be zeroed. */ - - jzero_far((void FAR *) coef->MCU_buffer[0], - - (size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK))); - - if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { - - /* Suspension forced; update state counters and exit */ - - coef->MCU_vert_offset = yoffset; - - coef->MCU_ctr = MCU_col_num; - - return JPEG_SUSPENDED; - - } - - /* Determine where data should go in output_buf and do the IDCT thing. - - * We skip dummy blocks at the right and bottom edges (but blkn gets - - * incremented past them!). Note the inner loop relies on having - - * allocated the MCU_buffer[] blocks sequentially. - - */ - - blkn = 0; /* index of current DCT block within MCU */ - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - - compptr = cinfo->cur_comp_info[ci]; - - /* Don't bother to IDCT an uninteresting component. */ - - if (! compptr->component_needed) { - - blkn += compptr->MCU_blocks; - - continue; - - } - - inverse_DCT = cinfo->idct->inverse_DCT[compptr->component_index]; - - useful_width = (MCU_col_num < last_MCU_col) ? compptr->MCU_width - - : compptr->last_col_width; - - output_ptr = output_buf[ci] + yoffset * compptr->DCT_scaled_size; - - start_col = MCU_col_num * compptr->MCU_sample_width; - - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - - if (cinfo->input_iMCU_row < last_iMCU_row || - - yoffset+yindex < compptr->last_row_height) { - - output_col = start_col; - - for (xindex = 0; xindex < useful_width; xindex++) { - - (*inverse_DCT) (cinfo, compptr, - - (JCOEFPTR) coef->MCU_buffer[blkn+xindex], - - output_ptr, output_col); - - output_col += compptr->DCT_scaled_size; - - } - - } - - blkn += compptr->MCU_width; - - output_ptr += compptr->DCT_scaled_size; - - } - - } - - } - - /* Completed an MCU row, but perhaps not an iMCU row */ - - coef->MCU_ctr = 0; - - } - - /* Completed the iMCU row, advance counters for next one */ - - cinfo->output_iMCU_row++; - - if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { - - start_iMCU_row(cinfo); - - return JPEG_ROW_COMPLETED; - - } - - /* Completed the scan */ - - (*cinfo->inputctl->finish_input_pass) (cinfo); - - return JPEG_SCAN_COMPLETED; - -} - - - - - -/* - - * Dummy consume-input routine for single-pass operation. - - */ - - - -METHODDEF int - -dummy_consume_data (j_decompress_ptr cinfo) - -{ - - return JPEG_SUSPENDED; /* Always indicate nothing was done */ - -} - - - - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - - - -/* - - * Consume input data and store it in the full-image coefficient buffer. - - * We read as much as one fully interleaved MCU row ("iMCU" row) per call, - - * ie, v_samp_factor block rows for each component in the scan. - - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - - */ - - - -METHODDEF int - -consume_data (j_decompress_ptr cinfo) - -{ - - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - JDIMENSION MCU_col_num; /* index of current MCU within row */ - - int blkn, ci, xindex, yindex, yoffset; - - JDIMENSION start_col; - - JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; - - JBLOCKROW buffer_ptr; - - jpeg_component_info *compptr; - - - - /* Align the virtual buffers for the components used in this scan. */ - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - - compptr = cinfo->cur_comp_info[ci]; - - buffer[ci] = (*cinfo->mem->access_virt_barray) - - ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], - - cinfo->input_iMCU_row * compptr->v_samp_factor, - - (JDIMENSION) compptr->v_samp_factor, TRUE); - - /* Note: entropy decoder expects buffer to be zeroed, - - * but this is handled automatically by the memory manager - - * because we requested a pre-zeroed array. - - */ - - } - - - - /* Loop to process one whole iMCU row */ - - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - - yoffset++) { - - for (MCU_col_num = coef->MCU_ctr; MCU_col_num < cinfo->MCUs_per_row; - - MCU_col_num++) { - - /* Construct list of pointers to DCT blocks belonging to this MCU */ - - blkn = 0; /* index of current DCT block within MCU */ - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - - compptr = cinfo->cur_comp_info[ci]; - - start_col = MCU_col_num * compptr->MCU_width; - - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - - buffer_ptr = buffer[ci][yindex+yoffset] + start_col; - - for (xindex = 0; xindex < compptr->MCU_width; xindex++) { - - coef->MCU_buffer[blkn++] = buffer_ptr++; - - } - - } - - } - - /* Try to fetch the MCU. */ - - if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { - - /* Suspension forced; update state counters and exit */ - - coef->MCU_vert_offset = yoffset; - - coef->MCU_ctr = MCU_col_num; - - return JPEG_SUSPENDED; - - } - - } - - /* Completed an MCU row, but perhaps not an iMCU row */ - - coef->MCU_ctr = 0; - - } - - /* Completed the iMCU row, advance counters for next one */ - - if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { - - start_iMCU_row(cinfo); - - return JPEG_ROW_COMPLETED; - - } - - /* Completed the scan */ - - (*cinfo->inputctl->finish_input_pass) (cinfo); - - return JPEG_SCAN_COMPLETED; - -} - - - - - -/* - - * Decompress and return some data in the multi-pass case. - - * Always attempts to emit one fully interleaved MCU row ("iMCU" row). - - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - - * - - * NB: output_buf contains a plane for each component in image. - - */ - - - -METHODDEF int - -decompress_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) - -{ - - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - - JDIMENSION block_num; - - int ci, block_row, block_rows; - - JBLOCKARRAY buffer; - - JBLOCKROW buffer_ptr; - - JSAMPARRAY output_ptr; - - JDIMENSION output_col; - - jpeg_component_info *compptr; - - inverse_DCT_method_ptr inverse_DCT; - - - - /* Force some input to be done if we are getting ahead of the input. */ - - while (cinfo->input_scan_number < cinfo->output_scan_number || - - (cinfo->input_scan_number == cinfo->output_scan_number && - - cinfo->input_iMCU_row <= cinfo->output_iMCU_row)) { - - if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) - - return JPEG_SUSPENDED; - - } - - - - /* OK, output from the virtual arrays. */ - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* Don't bother to IDCT an uninteresting component. */ - - if (! compptr->component_needed) - - continue; - - /* Align the virtual buffer for this component. */ - - buffer = (*cinfo->mem->access_virt_barray) - - ((j_common_ptr) cinfo, coef->whole_image[ci], - - cinfo->output_iMCU_row * compptr->v_samp_factor, - - (JDIMENSION) compptr->v_samp_factor, FALSE); - - /* Count non-dummy DCT block rows in this iMCU row. */ - - if (cinfo->output_iMCU_row < last_iMCU_row) - - block_rows = compptr->v_samp_factor; - - else { - - /* NB: can't use last_row_height here; it is input-side-dependent! */ - - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - - if (block_rows == 0) block_rows = compptr->v_samp_factor; - - } - - inverse_DCT = cinfo->idct->inverse_DCT[ci]; - - output_ptr = output_buf[ci]; - - /* Loop over all DCT blocks to be processed. */ - - for (block_row = 0; block_row < block_rows; block_row++) { - - buffer_ptr = buffer[block_row]; - - output_col = 0; - - for (block_num = 0; block_num < compptr->width_in_blocks; block_num++) { - - (*inverse_DCT) (cinfo, compptr, (JCOEFPTR) buffer_ptr, - - output_ptr, output_col); - - buffer_ptr++; - - output_col += compptr->DCT_scaled_size; - - } - - output_ptr += compptr->DCT_scaled_size; - - } - - } - - - - if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) - - return JPEG_ROW_COMPLETED; - - return JPEG_SCAN_COMPLETED; - -} - - - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - - - - - -#ifdef BLOCK_SMOOTHING_SUPPORTED - - - -/* - - * This code applies interblock smoothing as described by section K.8 - - * of the JPEG standard: the first 5 AC coefficients are estimated from - - * the DC values of a DCT block and its 8 neighboring blocks. - - * We apply smoothing only for progressive JPEG decoding, and only if - - * the coefficients it can estimate are not yet known to full precision. - - */ - - - -/* - - * Determine whether block smoothing is applicable and safe. - - * We also latch the current states of the coef_bits[] entries for the - - * AC coefficients; otherwise, if the input side of the decompressor - - * advances into a new scan, we might think the coefficients are known - - * more accurately than they really are. - - */ - - - -LOCAL boolean - -smoothing_ok (j_decompress_ptr cinfo) - -{ - - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - boolean smoothing_useful = FALSE; - - int ci, coefi; - - jpeg_component_info *compptr; - - JQUANT_TBL * qtable; - - int * coef_bits; - - int * coef_bits_latch; - - - - if (! cinfo->progressive_mode || cinfo->coef_bits == NULL) - - return FALSE; - - - - /* Allocate latch area if not already done */ - - if (coef->coef_bits_latch == NULL) - - coef->coef_bits_latch = (int *) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - cinfo->num_components * - - (SAVED_COEFS * SIZEOF(int))); - - coef_bits_latch = coef->coef_bits_latch; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* All components' quantization values must already be latched. */ - - if ((qtable = compptr->quant_table) == NULL) - - return FALSE; - - /* Verify DC & first 5 AC quantizers are nonzero to avoid zero-divide. */ - - for (coefi = 0; coefi <= 5; coefi++) { - - if (qtable->quantval[coefi] == 0) - - return FALSE; - - } - - /* DC values must be at least partly known for all components. */ - - coef_bits = cinfo->coef_bits[ci]; - - if (coef_bits[0] < 0) - - return FALSE; - - /* Block smoothing is helpful if some AC coefficients remain inaccurate. */ - - for (coefi = 1; coefi <= 5; coefi++) { - - coef_bits_latch[coefi] = coef_bits[coefi]; - - if (coef_bits[coefi] != 0) - - smoothing_useful = TRUE; - - } - - coef_bits_latch += SAVED_COEFS; - - } - - - - return smoothing_useful; - -} - - - - - -/* - - * Variant of decompress_data for use when doing block smoothing. - - */ - - - -METHODDEF int - -decompress_smooth_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) - -{ - - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - - JDIMENSION block_num, last_block_column; - - int ci, block_row, block_rows, access_rows; - - JBLOCKARRAY buffer; - - JBLOCKROW buffer_ptr, prev_block_row, next_block_row; - - JSAMPARRAY output_ptr; - - JDIMENSION output_col; - - jpeg_component_info *compptr; - - inverse_DCT_method_ptr inverse_DCT; - - boolean first_row, last_row; - - JBLOCK workspace; - - int *coef_bits; - - JQUANT_TBL *quanttbl; - - INT32 Q00,Q01,Q02,Q10,Q11,Q20, num; - - int DC1,DC2,DC3,DC4,DC5,DC6,DC7,DC8,DC9; - - int Al, pred; - - - - /* Force some input to be done if we are getting ahead of the input. */ - - while (cinfo->input_scan_number <= cinfo->output_scan_number && - - ! cinfo->inputctl->eoi_reached) { - - if (cinfo->input_scan_number == cinfo->output_scan_number) { - - /* If input is working on current scan, we ordinarily want it to - - * have completed the current row. But if input scan is DC, - - * we want it to keep one row ahead so that next block row's DC - - * values are up to date. - - */ - - JDIMENSION delta = (cinfo->Ss == 0) ? 1 : 0; - - if (cinfo->input_iMCU_row > cinfo->output_iMCU_row+delta) - - break; - - } - - if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) - - return JPEG_SUSPENDED; - - } - - - - /* OK, output from the virtual arrays. */ - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* Don't bother to IDCT an uninteresting component. */ - - if (! compptr->component_needed) - - continue; - - /* Count non-dummy DCT block rows in this iMCU row. */ - - if (cinfo->output_iMCU_row < last_iMCU_row) { - - block_rows = compptr->v_samp_factor; - - access_rows = block_rows * 2; /* this and next iMCU row */ - - last_row = FALSE; - - } else { - - /* NB: can't use last_row_height here; it is input-side-dependent! */ - - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - - if (block_rows == 0) block_rows = compptr->v_samp_factor; - - access_rows = block_rows; /* this iMCU row only */ - - last_row = TRUE; - - } - - /* Align the virtual buffer for this component. */ - - if (cinfo->output_iMCU_row > 0) { - - access_rows += compptr->v_samp_factor; /* prior iMCU row too */ - - buffer = (*cinfo->mem->access_virt_barray) - - ((j_common_ptr) cinfo, coef->whole_image[ci], - - (cinfo->output_iMCU_row - 1) * compptr->v_samp_factor, - - (JDIMENSION) access_rows, FALSE); - - buffer += compptr->v_samp_factor; /* point to current iMCU row */ - - first_row = FALSE; - - } else { - - buffer = (*cinfo->mem->access_virt_barray) - - ((j_common_ptr) cinfo, coef->whole_image[ci], - - (JDIMENSION) 0, (JDIMENSION) access_rows, FALSE); - - first_row = TRUE; - - } - - /* Fetch component-dependent info */ - - coef_bits = coef->coef_bits_latch + (ci * SAVED_COEFS); - - quanttbl = compptr->quant_table; - - Q00 = quanttbl->quantval[0]; - - Q01 = quanttbl->quantval[1]; - - Q10 = quanttbl->quantval[2]; - - Q20 = quanttbl->quantval[3]; - - Q11 = quanttbl->quantval[4]; - - Q02 = quanttbl->quantval[5]; - - inverse_DCT = cinfo->idct->inverse_DCT[ci]; - - output_ptr = output_buf[ci]; - - /* Loop over all DCT blocks to be processed. */ - - for (block_row = 0; block_row < block_rows; block_row++) { - - buffer_ptr = buffer[block_row]; - - if (first_row && block_row == 0) - - prev_block_row = buffer_ptr; - - else - - prev_block_row = buffer[block_row-1]; - - if (last_row && block_row == block_rows-1) - - next_block_row = buffer_ptr; - - else - - next_block_row = buffer[block_row+1]; - - /* We fetch the surrounding DC values using a sliding-register approach. - - * Initialize all nine here so as to do the right thing on narrow pics. - - */ - - DC1 = DC2 = DC3 = (int) prev_block_row[0][0]; - - DC4 = DC5 = DC6 = (int) buffer_ptr[0][0]; - - DC7 = DC8 = DC9 = (int) next_block_row[0][0]; - - output_col = 0; - - last_block_column = compptr->width_in_blocks - 1; - - for (block_num = 0; block_num <= last_block_column; block_num++) { - - /* Fetch current DCT block into workspace so we can modify it. */ - - jcopy_block_row(buffer_ptr, (JBLOCKROW) workspace, (JDIMENSION) 1); - - /* Update DC values */ - - if (block_num < last_block_column) { - - DC3 = (int) prev_block_row[1][0]; - - DC6 = (int) buffer_ptr[1][0]; - - DC9 = (int) next_block_row[1][0]; - - } - - /* Compute coefficient estimates per K.8. - - * An estimate is applied only if coefficient is still zero, - - * and is not known to be fully accurate. - - */ - - /* AC01 */ - - if ((Al=coef_bits[1]) != 0 && workspace[1] == 0) { - - num = 36 * Q00 * (DC4 - DC6); - - if (num >= 0) { - - pred = (int) (((Q01<<7) + num) / (Q01<<8)); - - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - - pred = (int) (((Q10<<7) + num) / (Q10<<8)); - - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - - pred = (int) (((Q20<<7) + num) / (Q20<<8)); - - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - - pred = (int) (((Q11<<7) + num) / (Q11<<8)); - - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - - pred = (int) (((Q02<<7) + num) / (Q02<<8)); - - if (Al > 0 && pred >= (1< 0 && pred >= (1<DCT_scaled_size; - - } - - output_ptr += compptr->DCT_scaled_size; - - } - - } - - - - if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) - - return JPEG_ROW_COMPLETED; - - return JPEG_SCAN_COMPLETED; - -} - - - -#endif /* BLOCK_SMOOTHING_SUPPORTED */ - - - - - -/* - - * Initialize coefficient buffer controller. - - */ - - - -GLOBAL void - -jinit_d_coef_controller (j_decompress_ptr cinfo, boolean need_full_buffer) - -{ - - my_coef_ptr coef; - - - - coef = (my_coef_ptr) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(my_coef_controller)); - - cinfo->coef = (struct jpeg_d_coef_controller *) coef; - - coef->pub.start_input_pass = start_input_pass; - - coef->pub.start_output_pass = start_output_pass; - -#ifdef BLOCK_SMOOTHING_SUPPORTED - - coef->coef_bits_latch = NULL; - -#endif - - - - /* Create the coefficient buffer. */ - - if (need_full_buffer) { - -#ifdef D_MULTISCAN_FILES_SUPPORTED - - /* Allocate a full-image virtual array for each component, */ - - /* padded to a multiple of samp_factor DCT blocks in each direction. */ - - /* Note we ask for a pre-zeroed array. */ - - int ci, access_rows; - - jpeg_component_info *compptr; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - access_rows = compptr->v_samp_factor; - -#ifdef BLOCK_SMOOTHING_SUPPORTED - - /* If block smoothing could be used, need a bigger window */ - - if (cinfo->progressive_mode) - - access_rows *= 3; - -#endif - - coef->whole_image[ci] = (*cinfo->mem->request_virt_barray) - - ((j_common_ptr) cinfo, JPOOL_IMAGE, TRUE, - - (JDIMENSION) jround_up((long) compptr->width_in_blocks, - - (long) compptr->h_samp_factor), - - (JDIMENSION) jround_up((long) compptr->height_in_blocks, - - (long) compptr->v_samp_factor), - - (JDIMENSION) access_rows); - - } - - coef->pub.consume_data = consume_data; - - coef->pub.decompress_data = decompress_data; - - coef->pub.coef_arrays = coef->whole_image; /* link to virtual arrays */ - -#else - - ERREXIT(cinfo, JERR_NOT_COMPILED); - -#endif - - } else { - - /* We only need a single-MCU buffer. */ - - JBLOCKROW buffer; - - int i; - - - - buffer = (JBLOCKROW) - - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - - for (i = 0; i < D_MAX_BLOCKS_IN_MCU; i++) { - - coef->MCU_buffer[i] = buffer + i; - - } - - coef->pub.consume_data = dummy_consume_data; - - coef->pub.decompress_data = decompress_onepass; - - coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */ - - } - -} - diff --git a/libs/jpeg6/jdcolor.cpp b/libs/jpeg6/jdcolor.cpp deleted file mode 100644 index 5c173597..00000000 --- a/libs/jpeg6/jdcolor.cpp +++ /dev/null @@ -1,734 +0,0 @@ -/* - - * jdcolor.c - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains output colorspace conversion routines. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* Private subobject */ - - - -typedef struct { - - struct jpeg_color_deconverter pub; /* public fields */ - - - - /* Private state for YCC->RGB conversion */ - - int * Cr_r_tab; /* => table for Cr to R conversion */ - - int * Cb_b_tab; /* => table for Cb to B conversion */ - - INT32 * Cr_g_tab; /* => table for Cr to G conversion */ - - INT32 * Cb_g_tab; /* => table for Cb to G conversion */ - -} my_color_deconverter; - - - -typedef my_color_deconverter * my_cconvert_ptr; - - - - - -/**************** YCbCr -> RGB conversion: most common case **************/ - - - -/* - - * YCbCr is defined per CCIR 601-1, except that Cb and Cr are - - * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5. - - * The conversion equations to be implemented are therefore - - * R = Y + 1.40200 * Cr - - * G = Y - 0.34414 * Cb - 0.71414 * Cr - - * B = Y + 1.77200 * Cb - - * where Cb and Cr represent the incoming values less CENTERJSAMPLE. - - * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.) - - * - - * To avoid floating-point arithmetic, we represent the fractional constants - - * as integers scaled up by 2^16 (about 4 digits precision); we have to divide - - * the products by 2^16, with appropriate rounding, to get the correct answer. - - * Notice that Y, being an integral input, does not contribute any fraction - - * so it need not participate in the rounding. - - * - - * For even more speed, we avoid doing any multiplications in the inner loop - - * by precalculating the constants times Cb and Cr for all possible values. - - * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table); - - * for 12-bit samples it is still acceptable. It's not very reasonable for - - * 16-bit samples, but if you want lossless storage you shouldn't be changing - - * colorspace anyway. - - * The Cr=>R and Cb=>B values can be rounded to integers in advance; the - - * values for the G calculation are left scaled up, since we must add them - - * together before rounding. - - */ - - - -#define SCALEBITS 16 /* speediest right-shift on some machines */ - -#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) - -#define FIX(x) ((INT32) ((x) * (1L<RGB colorspace conversion. - - */ - - - -LOCAL void - -build_ycc_rgb_table (j_decompress_ptr cinfo) - -{ - - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - - int i; - - INT32 x; - - SHIFT_TEMPS - - - - cconvert->Cr_r_tab = (int *) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - (MAXJSAMPLE+1) * SIZEOF(int)); - - cconvert->Cb_b_tab = (int *) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - (MAXJSAMPLE+1) * SIZEOF(int)); - - cconvert->Cr_g_tab = (INT32 *) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - (MAXJSAMPLE+1) * SIZEOF(INT32)); - - cconvert->Cb_g_tab = (INT32 *) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - (MAXJSAMPLE+1) * SIZEOF(INT32)); - - - - for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { - - /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ - - /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ - - /* Cr=>R value is nearest int to 1.40200 * x */ - - cconvert->Cr_r_tab[i] = (int) - - RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS); - - /* Cb=>B value is nearest int to 1.77200 * x */ - - cconvert->Cb_b_tab[i] = (int) - - RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS); - - /* Cr=>G value is scaled-up -0.71414 * x */ - - cconvert->Cr_g_tab[i] = (- FIX(0.71414)) * x; - - /* Cb=>G value is scaled-up -0.34414 * x */ - - /* We also add in ONE_HALF so that need not do it in inner loop */ - - cconvert->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF; - - } - -} - - - - - -/* - - * Convert some rows of samples to the output colorspace. - - * - - * Note that we change from noninterleaved, one-plane-per-component format - - * to interleaved-pixel format. The output buffer is therefore three times - - * as wide as the input buffer. - - * A starting row offset is provided only for the input buffer. The caller - - * can easily adjust the passed output_buf value to accommodate any row - - * offset required on that side. - - */ - - - -METHODDEF void - -ycc_rgb_convert (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION input_row, - - JSAMPARRAY output_buf, int num_rows) - -{ - - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - - register int y, cb, cr; - - register JSAMPROW outptr; - - register JSAMPROW inptr0, inptr1, inptr2; - - register JDIMENSION col; - - JDIMENSION num_cols = cinfo->output_width; - - /* copy these pointers into registers if possible */ - - register JSAMPLE * range_limit = cinfo->sample_range_limit; - - register int * Crrtab = cconvert->Cr_r_tab; - - register int * Cbbtab = cconvert->Cb_b_tab; - - register INT32 * Crgtab = cconvert->Cr_g_tab; - - register INT32 * Cbgtab = cconvert->Cb_g_tab; - - SHIFT_TEMPS - - - - while (--num_rows >= 0) { - - inptr0 = input_buf[0][input_row]; - - inptr1 = input_buf[1][input_row]; - - inptr2 = input_buf[2][input_row]; - - input_row++; - - outptr = *output_buf++; - - for (col = 0; col < num_cols; col++) { - - y = GETJSAMPLE(inptr0[col]); - - cb = GETJSAMPLE(inptr1[col]); - - cr = GETJSAMPLE(inptr2[col]); - - /* Range-limiting is essential due to noise introduced by DCT losses. */ - - outptr[RGB_RED] = range_limit[y + Crrtab[cr]]; - - outptr[RGB_GREEN] = range_limit[y + - - ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], - - SCALEBITS))]; - - outptr[RGB_BLUE] = range_limit[y + Cbbtab[cb]]; - - outptr += RGB_PIXELSIZE; - - } - - } - -} - - - - - -/**************** Cases other than YCbCr -> RGB **************/ - - - - - -/* - - * Color conversion for no colorspace change: just copy the data, - - * converting from separate-planes to interleaved representation. - - */ - - - -METHODDEF void - -null_convert (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION input_row, - - JSAMPARRAY output_buf, int num_rows) - -{ - - register JSAMPROW inptr, outptr; - - register JDIMENSION count; - - register int num_components = cinfo->num_components; - - JDIMENSION num_cols = cinfo->output_width; - - int ci; - - - - while (--num_rows >= 0) { - - for (ci = 0; ci < num_components; ci++) { - - inptr = input_buf[ci][input_row]; - - outptr = output_buf[0] + ci; - - for (count = num_cols; count > 0; count--) { - - *outptr = *inptr++; /* needn't bother with GETJSAMPLE() here */ - - outptr += num_components; - - } - - } - - input_row++; - - output_buf++; - - } - -} - - - - - -/* - - * Color conversion for grayscale: just copy the data. - - * This also works for YCbCr -> grayscale conversion, in which - - * we just copy the Y (luminance) component and ignore chrominance. - - */ - - - -METHODDEF void - -grayscale_convert (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION input_row, - - JSAMPARRAY output_buf, int num_rows) - -{ - - jcopy_sample_rows(input_buf[0], (int) input_row, output_buf, 0, - - num_rows, cinfo->output_width); - -} - - - - - -/* - - * Adobe-style YCCK->CMYK conversion. - - * We convert YCbCr to R=1-C, G=1-M, and B=1-Y using the same - - * conversion as above, while passing K (black) unchanged. - - * We assume build_ycc_rgb_table has been called. - - */ - - - -METHODDEF void - -ycck_cmyk_convert (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION input_row, - - JSAMPARRAY output_buf, int num_rows) - -{ - - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - - register int y, cb, cr; - - register JSAMPROW outptr; - - register JSAMPROW inptr0, inptr1, inptr2, inptr3; - - register JDIMENSION col; - - JDIMENSION num_cols = cinfo->output_width; - - /* copy these pointers into registers if possible */ - - register JSAMPLE * range_limit = cinfo->sample_range_limit; - - register int * Crrtab = cconvert->Cr_r_tab; - - register int * Cbbtab = cconvert->Cb_b_tab; - - register INT32 * Crgtab = cconvert->Cr_g_tab; - - register INT32 * Cbgtab = cconvert->Cb_g_tab; - - SHIFT_TEMPS - - - - while (--num_rows >= 0) { - - inptr0 = input_buf[0][input_row]; - - inptr1 = input_buf[1][input_row]; - - inptr2 = input_buf[2][input_row]; - - inptr3 = input_buf[3][input_row]; - - input_row++; - - outptr = *output_buf++; - - for (col = 0; col < num_cols; col++) { - - y = GETJSAMPLE(inptr0[col]); - - cb = GETJSAMPLE(inptr1[col]); - - cr = GETJSAMPLE(inptr2[col]); - - /* Range-limiting is essential due to noise introduced by DCT losses. */ - - outptr[0] = range_limit[MAXJSAMPLE - (y + Crrtab[cr])]; /* red */ - - outptr[1] = range_limit[MAXJSAMPLE - (y + /* green */ - - ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], - - SCALEBITS)))]; - - outptr[2] = range_limit[MAXJSAMPLE - (y + Cbbtab[cb])]; /* blue */ - - /* K passes through unchanged */ - - outptr[3] = inptr3[col]; /* don't need GETJSAMPLE here */ - - outptr += 4; - - } - - } - -} - - - - - -/* - - * Empty method for start_pass. - - */ - - - -METHODDEF void - -start_pass_dcolor (j_decompress_ptr cinfo) - -{ - - /* no work needed */ - -} - - - - - -/* - - * Module initialization routine for output colorspace conversion. - - */ - - - -GLOBAL void - -jinit_color_deconverter (j_decompress_ptr cinfo) - -{ - - my_cconvert_ptr cconvert; - - int ci; - - - - cconvert = (my_cconvert_ptr) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(my_color_deconverter)); - - cinfo->cconvert = (struct jpeg_color_deconverter *) cconvert; - - cconvert->pub.start_pass = start_pass_dcolor; - - - - /* Make sure num_components agrees with jpeg_color_space */ - - switch (cinfo->jpeg_color_space) { - - case JCS_GRAYSCALE: - - if (cinfo->num_components != 1) - - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - - break; - - - - case JCS_RGB: - - case JCS_YCbCr: - - if (cinfo->num_components != 3) - - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - - break; - - - - case JCS_CMYK: - - case JCS_YCCK: - - if (cinfo->num_components != 4) - - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - - break; - - - - default: /* JCS_UNKNOWN can be anything */ - - if (cinfo->num_components < 1) - - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - - break; - - } - - - - /* Set out_color_components and conversion method based on requested space. - - * Also clear the component_needed flags for any unused components, - - * so that earlier pipeline stages can avoid useless computation. - - */ - - - - switch (cinfo->out_color_space) { - - case JCS_GRAYSCALE: - - cinfo->out_color_components = 1; - - if (cinfo->jpeg_color_space == JCS_GRAYSCALE || - - cinfo->jpeg_color_space == JCS_YCbCr) { - - cconvert->pub.color_convert = grayscale_convert; - - /* For color->grayscale conversion, only the Y (0) component is needed */ - - for (ci = 1; ci < cinfo->num_components; ci++) - - cinfo->comp_info[ci].component_needed = FALSE; - - } else - - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - - break; - - - - case JCS_RGB: - - cinfo->out_color_components = RGB_PIXELSIZE; - - if (cinfo->jpeg_color_space == JCS_YCbCr) { - - cconvert->pub.color_convert = ycc_rgb_convert; - - build_ycc_rgb_table(cinfo); - - } else if (cinfo->jpeg_color_space == JCS_RGB && RGB_PIXELSIZE == 3) { - - cconvert->pub.color_convert = null_convert; - - } else - - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - - break; - - - - case JCS_CMYK: - - cinfo->out_color_components = 4; - - if (cinfo->jpeg_color_space == JCS_YCCK) { - - cconvert->pub.color_convert = ycck_cmyk_convert; - - build_ycc_rgb_table(cinfo); - - } else if (cinfo->jpeg_color_space == JCS_CMYK) { - - cconvert->pub.color_convert = null_convert; - - } else - - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - - break; - - - - default: - - /* Permit null conversion to same output space */ - - if (cinfo->out_color_space == cinfo->jpeg_color_space) { - - cinfo->out_color_components = cinfo->num_components; - - cconvert->pub.color_convert = null_convert; - - } else /* unsupported non-null conversion */ - - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - - break; - - } - - - - if (cinfo->quantize_colors) - - cinfo->output_components = 1; /* single colormapped output component */ - - else - - cinfo->output_components = cinfo->out_color_components; - -} - diff --git a/libs/jpeg6/jdct.h b/libs/jpeg6/jdct.h deleted file mode 100644 index cebb118e..00000000 --- a/libs/jpeg6/jdct.h +++ /dev/null @@ -1,352 +0,0 @@ -/* - - * jdct.h - - * - - * Copyright (C) 1994, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This include file contains common declarations for the forward and - - * inverse DCT modules. These declarations are private to the DCT managers - - * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms. - - * The individual DCT algorithms are kept in separate files to ease - - * machine-dependent tuning (e.g., assembly coding). - - */ - - - - - -/* - - * A forward DCT routine is given a pointer to a work area of type DCTELEM[]; - - * the DCT is to be performed in-place in that buffer. Type DCTELEM is int - - * for 8-bit samples, INT32 for 12-bit samples. (NOTE: Floating-point DCT - - * implementations use an array of type FAST_FLOAT, instead.) - - * The DCT inputs are expected to be signed (range +-CENTERJSAMPLE). - - * The DCT outputs are returned scaled up by a factor of 8; they therefore - - * have a range of +-8K for 8-bit data, +-128K for 12-bit data. This - - * convention improves accuracy in integer implementations and saves some - - * work in floating-point ones. - - * Quantization of the output coefficients is done by jcdctmgr.c. - - */ - - - -#if BITS_IN_JSAMPLE == 8 - -typedef int DCTELEM; /* 16 or 32 bits is fine */ - -#else - -typedef INT32 DCTELEM; /* must have 32 bits */ - -#endif - - - -typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data)); - -typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data)); - - - - - -/* - - * An inverse DCT routine is given a pointer to the input JBLOCK and a pointer - - * to an output sample array. The routine must dequantize the input data as - - * well as perform the IDCT; for dequantization, it uses the multiplier table - - * pointed to by compptr->dct_table. The output data is to be placed into the - - * sample array starting at a specified column. (Any row offset needed will - - * be applied to the array pointer before it is passed to the IDCT code.) - - * Note that the number of samples emitted by the IDCT routine is - - * DCT_scaled_size * DCT_scaled_size. - - */ - - - -/* typedef inverse_DCT_method_ptr is declared in jpegint.h */ - - - -/* - - * Each IDCT routine has its own ideas about the best dct_table element type. - - */ - - - -typedef MULTIPLIER ISLOW_MULT_TYPE; /* short or int, whichever is faster */ - -#if BITS_IN_JSAMPLE == 8 - -typedef MULTIPLIER IFAST_MULT_TYPE; /* 16 bits is OK, use short if faster */ - -#define IFAST_SCALE_BITS 2 /* fractional bits in scale factors */ - -#else - -typedef INT32 IFAST_MULT_TYPE; /* need 32 bits for scaled quantizers */ - -#define IFAST_SCALE_BITS 13 /* fractional bits in scale factors */ - -#endif - -typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */ - - - - - -/* - - * Each IDCT routine is responsible for range-limiting its results and - - * converting them to unsigned form (0..MAXJSAMPLE). The raw outputs could - - * be quite far out of range if the input data is corrupt, so a bulletproof - - * range-limiting step is required. We use a mask-and-table-lookup method - - * to do the combined operations quickly. See the comments with - - * prepare_range_limit_table (in jdmaster.c) for more info. - - */ - - - -#define IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE) - - - -#define RANGE_MASK (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */ - - - - - -/* Short forms of external names for systems with brain-damaged linkers. */ - - - -#ifdef NEED_SHORT_EXTERNAL_NAMES - -#define jpeg_fdct_islow jFDislow - -#define jpeg_fdct_ifast jFDifast - -#define jpeg_fdct_float jFDfloat - -#define jpeg_idct_islow jRDislow - -#define jpeg_idct_ifast jRDifast - -#define jpeg_idct_float jRDfloat - -#define jpeg_idct_4x4 jRD4x4 - -#define jpeg_idct_2x2 jRD2x2 - -#define jpeg_idct_1x1 jRD1x1 - -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - - -/* Extern declarations for the forward and inverse DCT routines. */ - - - -EXTERN void jpeg_fdct_islow JPP((DCTELEM * data)); - -EXTERN void jpeg_fdct_ifast JPP((DCTELEM * data)); - -EXTERN void jpeg_fdct_float JPP((FAST_FLOAT * data)); - - - -EXTERN void jpeg_idct_islow - - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - -EXTERN void jpeg_idct_ifast - - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - -EXTERN void jpeg_idct_float - - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - -EXTERN void jpeg_idct_4x4 - - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - -EXTERN void jpeg_idct_2x2 - - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - -EXTERN void jpeg_idct_1x1 - - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - - - - - -/* - - * Macros for handling fixed-point arithmetic; these are used by many - - * but not all of the DCT/IDCT modules. - - * - - * All values are expected to be of type INT32. - - * Fractional constants are scaled left by CONST_BITS bits. - - * CONST_BITS is defined within each module using these macros, - - * and may differ from one module to the next. - - */ - - - -#define ONE ((INT32) 1) - -#define CONST_SCALE (ONE << CONST_BITS) - - - -/* Convert a positive real constant to an integer scaled by CONST_SCALE. - - * Caution: some C compilers fail to reduce "FIX(constant)" at compile time, - - * thus causing a lot of useless floating-point operations at run time. - - */ - - - -#define FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5)) - - - -/* Descale and correctly round an INT32 value that's scaled by N bits. - - * We assume RIGHT_SHIFT rounds towards minus infinity, so adding - - * the fudge factor is correct for either sign of X. - - */ - - - -#define DESCALE(x,n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n) - - - -/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. - - * This macro is used only when the two inputs will actually be no more than - - * 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a - - * full 32x32 multiply. This provides a useful speedup on many machines. - - * Unfortunately there is no way to specify a 16x16->32 multiply portably - - * in C, but some C compilers will do the right thing if you provide the - - * correct combination of casts. - - */ - - - -#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ - -#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT16) (const))) - -#endif - -#ifdef SHORTxLCONST_32 /* known to work with Microsoft C 6.0 */ - -#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT32) (const))) - -#endif - - - -#ifndef MULTIPLY16C16 /* default definition */ - -#define MULTIPLY16C16(var,const) ((var) * (const)) - -#endif - - - -/* Same except both inputs are variables. */ - - - -#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ - -#define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2))) - -#endif - - - -#ifndef MULTIPLY16V16 /* default definition */ - -#define MULTIPLY16V16(var1,var2) ((var1) * (var2)) - -#endif - diff --git a/libs/jpeg6/jddctmgr.cpp b/libs/jpeg6/jddctmgr.cpp deleted file mode 100644 index cdf107e0..00000000 --- a/libs/jpeg6/jddctmgr.cpp +++ /dev/null @@ -1,540 +0,0 @@ -/* - - * jddctmgr.c - - * - - * Copyright (C) 1994-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains the inverse-DCT management logic. - - * This code selects a particular IDCT implementation to be used, - - * and it performs related housekeeping chores. No code in this file - - * is executed per IDCT step, only during output pass setup. - - * - - * Note that the IDCT routines are responsible for performing coefficient - - * dequantization as well as the IDCT proper. This module sets up the - - * dequantization multiplier table needed by the IDCT routine. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - -#include "jdct.h" /* Private declarations for DCT subsystem */ - - - - - -/* - - * The decompressor input side (jdinput.c) saves away the appropriate - - * quantization table for each component at the start of the first scan - - * involving that component. (This is necessary in order to correctly - - * decode files that reuse Q-table slots.) - - * When we are ready to make an output pass, the saved Q-table is converted - - * to a multiplier table that will actually be used by the IDCT routine. - - * The multiplier table contents are IDCT-method-dependent. To support - - * application changes in IDCT method between scans, we can remake the - - * multiplier tables if necessary. - - * In buffered-image mode, the first output pass may occur before any data - - * has been seen for some components, and thus before their Q-tables have - - * been saved away. To handle this case, multiplier tables are preset - - * to zeroes; the result of the IDCT will be a neutral gray level. - - */ - - - - - -/* Private subobject for this module */ - - - -typedef struct { - - struct jpeg_inverse_dct pub; /* public fields */ - - - - /* This array contains the IDCT method code that each multiplier table - - * is currently set up for, or -1 if it's not yet set up. - - * The actual multiplier tables are pointed to by dct_table in the - - * per-component comp_info structures. - - */ - - int cur_method[MAX_COMPONENTS]; - -} my_idct_controller; - - - -typedef my_idct_controller * my_idct_ptr; - - - - - -/* Allocated multiplier tables: big enough for any supported variant */ - - - -typedef union { - - ISLOW_MULT_TYPE islow_array[DCTSIZE2]; - -#ifdef DCT_IFAST_SUPPORTED - - IFAST_MULT_TYPE ifast_array[DCTSIZE2]; - -#endif - -#ifdef DCT_FLOAT_SUPPORTED - - FLOAT_MULT_TYPE float_array[DCTSIZE2]; - -#endif - -} multiplier_table; - - - - - -/* The current scaled-IDCT routines require ISLOW-style multiplier tables, - - * so be sure to compile that code if either ISLOW or SCALING is requested. - - */ - -#ifdef DCT_ISLOW_SUPPORTED - -#define PROVIDE_ISLOW_TABLES - -#else - -#ifdef IDCT_SCALING_SUPPORTED - -#define PROVIDE_ISLOW_TABLES - -#endif - -#endif - - - - - -/* - - * Prepare for an output pass. - - * Here we select the proper IDCT routine for each component and build - - * a matching multiplier table. - - */ - - - -METHODDEF void - -start_pass (j_decompress_ptr cinfo) - -{ - - my_idct_ptr idct = (my_idct_ptr) cinfo->idct; - - int ci, i; - - jpeg_component_info *compptr; - - int method = 0; - - inverse_DCT_method_ptr method_ptr = NULL; - - JQUANT_TBL * qtbl; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* Select the proper IDCT routine for this component's scaling */ - - switch (compptr->DCT_scaled_size) { - -#ifdef IDCT_SCALING_SUPPORTED - - case 1: - - method_ptr = jpeg_idct_1x1; - - method = JDCT_ISLOW; /* jidctred uses islow-style table */ - - break; - - case 2: - - method_ptr = jpeg_idct_2x2; - - method = JDCT_ISLOW; /* jidctred uses islow-style table */ - - break; - - case 4: - - method_ptr = jpeg_idct_4x4; - - method = JDCT_ISLOW; /* jidctred uses islow-style table */ - - break; - -#endif - - case DCTSIZE: - - switch (cinfo->dct_method) { - -#ifdef DCT_ISLOW_SUPPORTED - - case JDCT_ISLOW: - - method_ptr = jpeg_idct_islow; - - method = JDCT_ISLOW; - - break; - -#endif - -#ifdef DCT_IFAST_SUPPORTED - - case JDCT_IFAST: - - method_ptr = jpeg_idct_ifast; - - method = JDCT_IFAST; - - break; - -#endif - -#ifdef DCT_FLOAT_SUPPORTED - - case JDCT_FLOAT: - - method_ptr = jpeg_idct_float; - - method = JDCT_FLOAT; - - break; - -#endif - - default: - - ERREXIT(cinfo, JERR_NOT_COMPILED); - - break; - - } - - break; - - default: - - ERREXIT1(cinfo, JERR_BAD_DCTSIZE, compptr->DCT_scaled_size); - - break; - - } - - idct->pub.inverse_DCT[ci] = method_ptr; - - /* Create multiplier table from quant table. - - * However, we can skip this if the component is uninteresting - - * or if we already built the table. Also, if no quant table - - * has yet been saved for the component, we leave the - - * multiplier table all-zero; we'll be reading zeroes from the - - * coefficient controller's buffer anyway. - - */ - - if (! compptr->component_needed || idct->cur_method[ci] == method) - - continue; - - qtbl = compptr->quant_table; - - if (qtbl == NULL) /* happens if no data yet for component */ - - continue; - - idct->cur_method[ci] = method; - - switch (method) { - -#ifdef PROVIDE_ISLOW_TABLES - - case JDCT_ISLOW: - - { - - /* For LL&M IDCT method, multipliers are equal to raw quantization - - * coefficients, but are stored in natural order as ints. - - */ - - ISLOW_MULT_TYPE * ismtbl = (ISLOW_MULT_TYPE *) compptr->dct_table; - - for (i = 0; i < DCTSIZE2; i++) { - - ismtbl[i] = (ISLOW_MULT_TYPE) qtbl->quantval[jpeg_zigzag_order[i]]; - - } - - } - - break; - -#endif - -#ifdef DCT_IFAST_SUPPORTED - - case JDCT_IFAST: - - { - - /* For AA&N IDCT method, multipliers are equal to quantization - - * coefficients scaled by scalefactor[row]*scalefactor[col], where - - * scalefactor[0] = 1 - - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - - * For integer operation, the multiplier table is to be scaled by - - * IFAST_SCALE_BITS. The multipliers are stored in natural order. - - */ - - IFAST_MULT_TYPE * ifmtbl = (IFAST_MULT_TYPE *) compptr->dct_table; - -#define CONST_BITS 14 - - static const INT16 aanscales[DCTSIZE2] = { - - /* precomputed values scaled up by 14 bits */ - - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - - 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, - - 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, - - 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, - - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - - 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, - - 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, - - 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 - - }; - - SHIFT_TEMPS - - - - for (i = 0; i < DCTSIZE2; i++) { - - ifmtbl[i] = (IFAST_MULT_TYPE) - - DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[jpeg_zigzag_order[i]], - - (INT32) aanscales[i]), - - CONST_BITS-IFAST_SCALE_BITS); - - } - - } - - break; - -#endif - -#ifdef DCT_FLOAT_SUPPORTED - - case JDCT_FLOAT: - - { - - /* For float AA&N IDCT method, multipliers are equal to quantization - - * coefficients scaled by scalefactor[row]*scalefactor[col], where - - * scalefactor[0] = 1 - - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - - * The multipliers are stored in natural order. - - */ - - FLOAT_MULT_TYPE * fmtbl = (FLOAT_MULT_TYPE *) compptr->dct_table; - - int row, col; - - static const double aanscalefactor[DCTSIZE] = { - - 1.0, 1.387039845, 1.306562965, 1.175875602, - - 1.0, 0.785694958, 0.541196100, 0.275899379 - - }; - - - - i = 0; - - for (row = 0; row < DCTSIZE; row++) { - - for (col = 0; col < DCTSIZE; col++) { - - fmtbl[i] = (FLOAT_MULT_TYPE) - - ((double) qtbl->quantval[jpeg_zigzag_order[i]] * - - aanscalefactor[row] * aanscalefactor[col]); - - i++; - - } - - } - - } - - break; - -#endif - - default: - - ERREXIT(cinfo, JERR_NOT_COMPILED); - - break; - - } - - } - -} - - - - - -/* - - * Initialize IDCT manager. - - */ - - - -GLOBAL void - -jinit_inverse_dct (j_decompress_ptr cinfo) - -{ - - my_idct_ptr idct; - - int ci; - - jpeg_component_info *compptr; - - - - idct = (my_idct_ptr) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(my_idct_controller)); - - cinfo->idct = (struct jpeg_inverse_dct *) idct; - - idct->pub.start_pass = start_pass; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* Allocate and pre-zero a multiplier table for each component */ - - compptr->dct_table = - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(multiplier_table)); - - MEMZERO(compptr->dct_table, SIZEOF(multiplier_table)); - - /* Mark multiplier table not yet set up for any method */ - - idct->cur_method[ci] = -1; - - } - -} - diff --git a/libs/jpeg6/jdhuff.cpp b/libs/jpeg6/jdhuff.cpp deleted file mode 100644 index 4ed8bc3a..00000000 --- a/libs/jpeg6/jdhuff.cpp +++ /dev/null @@ -1,574 +0,0 @@ -/* - * jdhuff.c - * - * Copyright (C) 1991-1995, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains Huffman entropy decoding routines. - * - * Much of the complexity here has to do with supporting input suspension. - * If the data source module demands suspension, we want to be able to back - * up to the start of the current MCU. To do this, we copy state variables - * into local working storage, and update them back to the permanent - * storage only upon successful completion of an MCU. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "radiant_jpeglib.h" -#include "jdhuff.h" /* Declarations shared with jdphuff.c */ - - -/* - * Expanded entropy decoder object for Huffman decoding. - * - * The savable_state subrecord contains fields that change within an MCU, - * but must not be updated permanently until we complete the MCU. - */ - -typedef struct { - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ -} savable_state; - -/* This macro is to work around compilers with missing or broken - * structure assignment. You'll need to fix this code if you have - * such a compiler and you change MAX_COMPS_IN_SCAN. - */ - -#ifndef NO_STRUCT_ASSIGN -#define ASSIGN_STATE(dest,src) ((dest) = (src)) -#else -#if MAX_COMPS_IN_SCAN == 4 -#define ASSIGN_STATE(dest,src) \ - ((dest).last_dc_val[0] = (src).last_dc_val[0], \ - (dest).last_dc_val[1] = (src).last_dc_val[1], \ - (dest).last_dc_val[2] = (src).last_dc_val[2], \ - (dest).last_dc_val[3] = (src).last_dc_val[3]) -#endif -#endif - - -typedef struct { - struct jpeg_entropy_decoder pub; /* public fields */ - - /* These fields are loaded into local variables at start of each MCU. - * In case of suspension, we exit WITHOUT updating them. - */ - bitread_perm_state bitstate; /* Bit buffer at start of MCU */ - savable_state saved; /* Other state at start of MCU */ - - /* These fields are NOT loaded into local working state. */ - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - - /* Pointers to derived tables (these workspaces have image lifespan) */ - d_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS]; - d_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS]; -} huff_entropy_decoder; - -typedef huff_entropy_decoder * huff_entropy_ptr; - - -/* - * Initialize for a Huffman-compressed scan. - */ - -METHODDEF void -start_pass_huff_decoder (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci, dctbl, actbl; - jpeg_component_info * compptr; - - /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG. - * This ought to be an error condition, but we make it a warning because - * there are some baseline files out there with all zeroes in these bytes. - */ - if (cinfo->Ss != 0 || cinfo->Se != DCTSIZE2-1 || - cinfo->Ah != 0 || cinfo->Al != 0) - WARNMS(cinfo, JWRN_NOT_SEQUENTIAL); - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - dctbl = compptr->dc_tbl_no; - actbl = compptr->ac_tbl_no; - /* Make sure requested tables are present */ - if (dctbl < 0 || dctbl >= NUM_HUFF_TBLS || - cinfo->dc_huff_tbl_ptrs[dctbl] == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, dctbl); - if (actbl < 0 || actbl >= NUM_HUFF_TBLS || - cinfo->ac_huff_tbl_ptrs[actbl] == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, actbl); - /* Compute derived values for Huffman tables */ - /* We may do this more than once for a table, but it's not expensive */ - jpeg_make_d_derived_tbl(cinfo, cinfo->dc_huff_tbl_ptrs[dctbl], - & entropy->dc_derived_tbls[dctbl]); - jpeg_make_d_derived_tbl(cinfo, cinfo->ac_huff_tbl_ptrs[actbl], - & entropy->ac_derived_tbls[actbl]); - /* Initialize DC predictions to 0 */ - entropy->saved.last_dc_val[ci] = 0; - } - - /* Initialize bitread state variables */ - entropy->bitstate.bits_left = 0; - entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify quiet */ - entropy->bitstate.printed_eod = FALSE; - - /* Initialize restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; -} - - -/* - * Compute the derived values for a Huffman table. - * Note this is also used by jdphuff.c. - */ - -GLOBAL void -jpeg_make_d_derived_tbl (j_decompress_ptr cinfo, JHUFF_TBL * htbl, - d_derived_tbl ** pdtbl) -{ - d_derived_tbl *dtbl; - int p, i, l, si; - int lookbits, ctr; - char huffsize[257]; - unsigned int huffcode[257]; - unsigned int code; - - /* Allocate a workspace if we haven't already done so. */ - if (*pdtbl == NULL) - *pdtbl = (d_derived_tbl *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(d_derived_tbl)); - dtbl = *pdtbl; - dtbl->pub = htbl; /* fill in back link */ - - /* Figure C.1: make table of Huffman code length for each symbol */ - /* Note that this is in code-length order. */ - - p = 0; - for (l = 1; l <= 16; l++) { - for (i = 1; i <= (int) htbl->bits[l]; i++) - huffsize[p++] = (char) l; - } - huffsize[p] = 0; - - /* Figure C.2: generate the codes themselves */ - /* Note that this is in code-length order. */ - - code = 0; - si = huffsize[0]; - p = 0; - while (huffsize[p]) { - while (((int) huffsize[p]) == si) { - huffcode[p++] = code; - code++; - } - code <<= 1; - si++; - } - - /* Figure F.15: generate decoding tables for bit-sequential decoding */ - - p = 0; - for (l = 1; l <= 16; l++) { - if (htbl->bits[l]) { - dtbl->valptr[l] = p; /* huffval[] index of 1st symbol of code length l */ - dtbl->mincode[l] = huffcode[p]; /* minimum code of length l */ - p += htbl->bits[l]; - dtbl->maxcode[l] = huffcode[p-1]; /* maximum code of length l */ - } else { - dtbl->maxcode[l] = -1; /* -1 if no codes of this length */ - } - } - dtbl->maxcode[17] = 0xFFFFFL; /* ensures jpeg_huff_decode terminates */ - - /* Compute lookahead tables to speed up decoding. - * First we set all the table entries to 0, indicating "too long"; - * then we iterate through the Huffman codes that are short enough and - * fill in all the entries that correspond to bit sequences starting - * with that code. - */ - - MEMZERO(dtbl->look_nbits, SIZEOF(dtbl->look_nbits)); - - p = 0; - for (l = 1; l <= HUFF_LOOKAHEAD; l++) { - for (i = 1; i <= (int) htbl->bits[l]; i++, p++) { - /* l = current code's length, p = its index in huffcode[] & huffval[]. */ - /* Generate left-justified code followed by all possible bit sequences */ - lookbits = huffcode[p] << (HUFF_LOOKAHEAD-l); - for (ctr = 1 << (HUFF_LOOKAHEAD-l); ctr > 0; ctr--) { - dtbl->look_nbits[lookbits] = l; - dtbl->look_sym[lookbits] = htbl->huffval[p]; - lookbits++; - } - } - } -} - - -/* - * Out-of-line code for bit fetching (shared with jdphuff.c). - * See jdhuff.h for info about usage. - * Note: current values of get_buffer and bits_left are passed as parameters, - * but are returned in the corresponding fields of the state struct. - * - * On most machines MIN_GET_BITS should be 25 to allow the full 32-bit width - * of get_buffer to be used. (On machines with wider words, an even larger - * buffer could be used.) However, on some machines 32-bit shifts are - * quite slow and take time proportional to the number of places shifted. - * (This is true with most PC compilers, for instance.) In this case it may - * be a win to set MIN_GET_BITS to the minimum value of 15. This reduces the - * average shift distance at the cost of more calls to jpeg_fill_bit_buffer. - */ - -#ifdef SLOW_SHIFT_32 -#define MIN_GET_BITS 15 /* minimum allowable value */ -#else -#define MIN_GET_BITS (BIT_BUF_SIZE-7) -#endif - - -GLOBAL boolean -jpeg_fill_bit_buffer (bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - int nbits) -/* Load up the bit buffer to a depth of at least nbits */ -{ - /* Copy heavily used state fields into locals (hopefully registers) */ - register const JOCTET * next_input_byte = state->next_input_byte; - register size_t bytes_in_buffer = state->bytes_in_buffer; - register int c; - - /* Attempt to load at least MIN_GET_BITS bits into get_buffer. */ - /* (It is assumed that no request will be for more than that many bits.) */ - - while (bits_left < MIN_GET_BITS) { - /* Attempt to read a byte */ - if (state->unread_marker != 0) - goto no_more_data; /* can't advance past a marker */ - - if (bytes_in_buffer == 0) { - if (! (*state->cinfo->src->fill_input_buffer) (state->cinfo)) - return FALSE; - next_input_byte = state->cinfo->src->next_input_byte; - bytes_in_buffer = state->cinfo->src->bytes_in_buffer; - } - bytes_in_buffer--; - c = GETJOCTET(*next_input_byte++); - - /* If it's 0xFF, check and discard stuffed zero byte */ - if (c == 0xFF) { - do { - if (bytes_in_buffer == 0) { - if (! (*state->cinfo->src->fill_input_buffer) (state->cinfo)) - return FALSE; - next_input_byte = state->cinfo->src->next_input_byte; - bytes_in_buffer = state->cinfo->src->bytes_in_buffer; - } - bytes_in_buffer--; - c = GETJOCTET(*next_input_byte++); - } while (c == 0xFF); - - if (c == 0) { - /* Found FF/00, which represents an FF data byte */ - c = 0xFF; - } else { - /* Oops, it's actually a marker indicating end of compressed data. */ - /* Better put it back for use later */ - state->unread_marker = c; - - no_more_data: - /* There should be enough bits still left in the data segment; */ - /* if so, just break out of the outer while loop. */ - if (bits_left >= nbits) - break; - /* Uh-oh. Report corrupted data to user and stuff zeroes into - * the data stream, so that we can produce some kind of image. - * Note that this code will be repeated for each byte demanded - * for the rest of the segment. We use a nonvolatile flag to ensure - * that only one warning message appears. - */ - if (! *(state->printed_eod_ptr)) { - WARNMS(state->cinfo, JWRN_HIT_MARKER); - *(state->printed_eod_ptr) = TRUE; - } - c = 0; /* insert a zero byte into bit buffer */ - } - } - - /* OK, load c into get_buffer */ - get_buffer = (get_buffer << 8) | c; - bits_left += 8; - } - - /* Unload the local registers */ - state->next_input_byte = next_input_byte; - state->bytes_in_buffer = bytes_in_buffer; - state->get_buffer = get_buffer; - state->bits_left = bits_left; - - return TRUE; -} - - -/* - * Out-of-line code for Huffman code decoding. - * See jdhuff.h for info about usage. - */ - -GLOBAL int -jpeg_huff_decode (bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - d_derived_tbl * htbl, int min_bits) -{ - register int l = min_bits; - register INT32 code; - - /* HUFF_DECODE has determined that the code is at least min_bits */ - /* bits long, so fetch that many bits in one swoop. */ - - CHECK_BIT_BUFFER(*state, l, return -1); - code = GET_BITS(l); - - /* Collect the rest of the Huffman code one bit at a time. */ - /* This is per Figure F.16 in the JPEG spec. */ - - while (code > htbl->maxcode[l]) { - code <<= 1; - CHECK_BIT_BUFFER(*state, 1, return -1); - code |= GET_BITS(1); - l++; - } - - /* Unload the local registers */ - state->get_buffer = get_buffer; - state->bits_left = bits_left; - - /* With garbage input we may reach the sentinel value l = 17. */ - - if (l > 16) { - WARNMS(state->cinfo, JWRN_HUFF_BAD_CODE); - return 0; /* fake a zero as the safest result */ - } - - return htbl->pub->huffval[ htbl->valptr[l] + - ((int) (code - htbl->mincode[l])) ]; -} - - -/* - * Figure F.12: extend sign bit. - * On some machines, a shift and add will be faster than a table lookup. - */ - -#ifdef AVOID_TABLES - -#define HUFF_EXTEND(x,s) ((x) < (1<<((s)-1)) ? (x) + (((-1)<<(s)) + 1) : (x)) - -#else - -#define HUFF_EXTEND(x,s) ((x) < extend_test[s] ? (x) + extend_offset[s] : (x)) - -static const int extend_test[16] = /* entry n is 2**(n-1) */ - { 0, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, - 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000 }; - -static const int extend_offset[16] = /* entry n is (-1 << n) + 1 */ - { 0, ((-1)<<1) + 1, ((-1)<<2) + 1, ((-1)<<3) + 1, ((-1)<<4) + 1, - ((-1)<<5) + 1, ((-1)<<6) + 1, ((-1)<<7) + 1, ((-1)<<8) + 1, - ((-1)<<9) + 1, ((-1)<<10) + 1, ((-1)<<11) + 1, ((-1)<<12) + 1, - ((-1)<<13) + 1, ((-1)<<14) + 1, ((-1)<<15) + 1 }; - -#endif /* AVOID_TABLES */ - - -/* - * Check for a restart marker & resynchronize decoder. - * Returns FALSE if must suspend. - */ - -LOCAL boolean -process_restart (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci; - - /* Throw away any unused bits remaining in bit buffer; */ - /* include any full bytes in next_marker's count of discarded bytes */ - cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8; - entropy->bitstate.bits_left = 0; - - /* Advance past the RSTn marker */ - if (! (*cinfo->marker->read_restart_marker) (cinfo)) - return FALSE; - - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) - entropy->saved.last_dc_val[ci] = 0; - - /* Reset restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; - - /* Next segment can get another out-of-data warning */ - entropy->bitstate.printed_eod = FALSE; - - return TRUE; -} - - -/* - * Decode and return one MCU's worth of Huffman-compressed coefficients. - * The coefficients are reordered from zigzag order into natural array order, - * but are not dequantized. - * - * The i'th block of the MCU is stored into the block pointed to by - * MCU_data[i]. WE ASSUME THIS AREA HAS BEEN ZEROED BY THE CALLER. - * (Wholesale zeroing is usually a little faster than retail...) - * - * Returns FALSE if data source requested suspension. In that case no - * changes have been made to permanent state. (Exception: some output - * coefficients may already have been assigned. This is harmless for - * this module, since we'll just re-assign them on the next call.) - */ - -METHODDEF boolean -decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int s, k, r; - int blkn, ci; - JBLOCKROW block; - BITREAD_STATE_VARS; - savable_state state; - d_derived_tbl * dctbl; - d_derived_tbl * actbl; - jpeg_component_info * compptr; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(state, entropy->saved); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - dctbl = entropy->dc_derived_tbls[compptr->dc_tbl_no]; - actbl = entropy->ac_derived_tbls[compptr->ac_tbl_no]; - - /* Decode a single block's worth of coefficients */ - - /* Section F.2.2.1: decode the DC coefficient difference */ - HUFF_DECODE(s, br_state, dctbl, return FALSE, label1); - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - } - - /* Shortcut if component's values are not interesting */ - if (! compptr->component_needed) - goto skip_ACs; - - /* Convert DC difference to actual value, update last_dc_val */ - s += state.last_dc_val[ci]; - state.last_dc_val[ci] = s; - /* Output the DC coefficient (assumes jpeg_natural_order[0] = 0) */ - (*block)[0] = (JCOEF) s; - - /* Do we need to decode the AC coefficients for this component? */ - if (compptr->DCT_scaled_size > 1) { - - /* Section F.2.2.2: decode the AC coefficients */ - /* Since zeroes are skipped, output area must be cleared beforehand */ - for (k = 1; k < DCTSIZE2; k++) { - HUFF_DECODE(s, br_state, actbl, return FALSE, label2); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - /* Output coefficient in natural (dezigzagged) order. - * Note: the extra entries in jpeg_natural_order[] will save us - * if k >= DCTSIZE2, which could happen if the data is corrupted. - */ - (*block)[jpeg_natural_order[k]] = (JCOEF) s; - } else { - if (r != 15) - break; - k += 15; - } - } - - } else { -skip_ACs: - - /* Section F.2.2.2: decode the AC coefficients */ - /* In this path we just discard the values */ - for (k = 1; k < DCTSIZE2; k++) { - HUFF_DECODE(s, br_state, actbl, return FALSE, label3); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } else { - if (r != 15) - break; - k += 15; - } - } - - } - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(entropy->saved, state); - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * Module initialization routine for Huffman entropy decoding. - */ - -GLOBAL void -jinit_huff_decoder (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy; - int i; - - entropy = (huff_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(huff_entropy_decoder)); - cinfo->entropy = (struct jpeg_entropy_decoder *) entropy; - entropy->pub.start_pass = start_pass_huff_decoder; - entropy->pub.decode_mcu = decode_mcu; - - /* Mark tables unallocated */ - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; - } -} diff --git a/libs/jpeg6/jdhuff.h b/libs/jpeg6/jdhuff.h deleted file mode 100644 index 65f3054f..00000000 --- a/libs/jpeg6/jdhuff.h +++ /dev/null @@ -1,202 +0,0 @@ -/* - * jdhuff.h - * - * Copyright (C) 1991-1995, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains declarations for Huffman entropy decoding routines - * that are shared between the sequential decoder (jdhuff.c) and the - * progressive decoder (jdphuff.c). No other modules need to see these. - */ - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_make_d_derived_tbl jMkDDerived -#define jpeg_fill_bit_buffer jFilBitBuf -#define jpeg_huff_decode jHufDecode -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* Derived data constructed for each Huffman table */ - -#define HUFF_LOOKAHEAD 8 /* # of bits of lookahead */ - -typedef struct { - /* Basic tables: (element [0] of each array is unused) */ - INT32 mincode[17]; /* smallest code of length k */ - INT32 maxcode[18]; /* largest code of length k (-1 if none) */ - /* (maxcode[17] is a sentinel to ensure jpeg_huff_decode terminates) */ - int valptr[17]; /* huffval[] index of 1st symbol of length k */ - - /* Link to public Huffman table (needed only in jpeg_huff_decode) */ - JHUFF_TBL *pub; - - /* Lookahead tables: indexed by the next HUFF_LOOKAHEAD bits of - * the input data stream. If the next Huffman code is no more - * than HUFF_LOOKAHEAD bits long, we can obtain its length and - * the corresponding symbol directly from these tables. - */ - int look_nbits[1< 32 bits on your machine, and shifting/masking longs is - * reasonably fast, making bit_buf_type be long and setting BIT_BUF_SIZE - * appropriately should be a win. Unfortunately we can't do this with - * something like #define BIT_BUF_SIZE (sizeof(bit_buf_type)*8) - * because not all machines measure sizeof in 8-bit bytes. - */ - -typedef struct { /* Bitreading state saved across MCUs */ - bit_buf_type get_buffer; /* current bit-extraction buffer */ - int bits_left; /* # of unused bits in it */ - boolean printed_eod; /* flag to suppress multiple warning msgs */ -} bitread_perm_state; - -typedef struct { /* Bitreading working state within an MCU */ - /* current data source state */ - const JOCTET * next_input_byte; /* => next byte to read from source */ - size_t bytes_in_buffer; /* # of bytes remaining in source buffer */ - int unread_marker; /* nonzero if we have hit a marker */ - /* bit input buffer --- note these values are kept in register variables, - * not in this struct, inside the inner loops. - */ - bit_buf_type get_buffer; /* current bit-extraction buffer */ - int bits_left; /* # of unused bits in it */ - /* pointers needed by jpeg_fill_bit_buffer */ - j_decompress_ptr cinfo; /* back link to decompress master record */ - boolean * printed_eod_ptr; /* => flag in permanent state */ -} bitread_working_state; - -/* Macros to declare and load/save bitread local variables. */ -#define BITREAD_STATE_VARS \ - register bit_buf_type get_buffer; \ - register int bits_left; \ - bitread_working_state br_state - -#define BITREAD_LOAD_STATE(cinfop,permstate) \ - br_state.cinfo = cinfop; \ - br_state.next_input_byte = cinfop->src->next_input_byte; \ - br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \ - br_state.unread_marker = cinfop->unread_marker; \ - get_buffer = permstate.get_buffer; \ - bits_left = permstate.bits_left; \ - br_state.printed_eod_ptr = & permstate.printed_eod - -#define BITREAD_SAVE_STATE(cinfop,permstate) \ - cinfop->src->next_input_byte = br_state.next_input_byte; \ - cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \ - cinfop->unread_marker = br_state.unread_marker; \ - permstate.get_buffer = get_buffer; \ - permstate.bits_left = bits_left - -/* - * These macros provide the in-line portion of bit fetching. - * Use CHECK_BIT_BUFFER to ensure there are N bits in get_buffer - * before using GET_BITS, PEEK_BITS, or DROP_BITS. - * The variables get_buffer and bits_left are assumed to be locals, - * but the state struct might not be (jpeg_huff_decode needs this). - * CHECK_BIT_BUFFER(state,n,action); - * Ensure there are N bits in get_buffer; if suspend, take action. - * val = GET_BITS(n); - * Fetch next N bits. - * val = PEEK_BITS(n); - * Fetch next N bits without removing them from the buffer. - * DROP_BITS(n); - * Discard next N bits. - * The value N should be a simple variable, not an expression, because it - * is evaluated multiple times. - */ - -#define CHECK_BIT_BUFFER(state,nbits,action) \ - { if (bits_left < (nbits)) { \ - if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits)) \ - { action; } \ - get_buffer = (state).get_buffer; bits_left = (state).bits_left; } } - -#define GET_BITS(nbits) \ - (((int) (get_buffer >> (bits_left -= (nbits)))) & ((1<<(nbits))-1)) - -#define PEEK_BITS(nbits) \ - (((int) (get_buffer >> (bits_left - (nbits)))) & ((1<<(nbits))-1)) - -#define DROP_BITS(nbits) \ - (bits_left -= (nbits)) - -/* Load up the bit buffer to a depth of at least nbits */ -EXTERN boolean jpeg_fill_bit_buffer JPP((bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - int nbits)); - - -/* - * Code for extracting next Huffman-coded symbol from input bit stream. - * Again, this is time-critical and we make the main paths be macros. - * - * We use a lookahead table to process codes of up to HUFF_LOOKAHEAD bits - * without looping. Usually, more than 95% of the Huffman codes will be 8 - * or fewer bits long. The few overlength codes are handled with a loop, - * which need not be inline code. - * - * Notes about the HUFF_DECODE macro: - * 1. Near the end of the data segment, we may fail to get enough bits - * for a lookahead. In that case, we do it the hard way. - * 2. If the lookahead table contains no entry, the next code must be - * more than HUFF_LOOKAHEAD bits long. - * 3. jpeg_huff_decode returns -1 if forced to suspend. - */ - -#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \ -{ register int nb, look; \ - if (bits_left < HUFF_LOOKAHEAD) { \ - if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \ - get_buffer = state.get_buffer; bits_left = state.bits_left; \ - if (bits_left < HUFF_LOOKAHEAD) { \ - nb = 1; goto slowlabel; \ - } \ - } \ - look = PEEK_BITS(HUFF_LOOKAHEAD); \ - if ((nb = htbl->look_nbits[look]) != 0) { \ - DROP_BITS(nb); \ - result = htbl->look_sym[look]; \ - } else { \ - nb = HUFF_LOOKAHEAD+1; \ -slowlabel: \ - if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \ - { failaction; } \ - get_buffer = state.get_buffer; bits_left = state.bits_left; \ - } \ -} - -/* Out-of-line case for Huffman code fetching */ -EXTERN int jpeg_huff_decode JPP((bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - d_derived_tbl * htbl, int min_bits)); diff --git a/libs/jpeg6/jdinput.cpp b/libs/jpeg6/jdinput.cpp deleted file mode 100644 index 4def2162..00000000 --- a/libs/jpeg6/jdinput.cpp +++ /dev/null @@ -1,762 +0,0 @@ -/* - - * jdinput.c - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains input control logic for the JPEG decompressor. - - * These routines are concerned with controlling the decompressor's input - - * processing (marker reading and coefficient decoding). The actual input - - * reading is done in jdmarker.c, jdhuff.c, and jdphuff.c. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* Private state */ - - - -typedef struct { - - struct jpeg_input_controller pub; /* public fields */ - - - - boolean inheaders; /* TRUE until first SOS is reached */ - -} my_input_controller; - - - -typedef my_input_controller * my_inputctl_ptr; - - - - - -/* Forward declarations */ - -METHODDEF int consume_markers JPP((j_decompress_ptr cinfo)); - - - - - -/* - - * Routines to calculate various quantities related to the size of the image. - - */ - - - -LOCAL void - -initial_setup (j_decompress_ptr cinfo) - -/* Called once, when first SOS marker is reached */ - -{ - - int ci; - - jpeg_component_info *compptr; - - - - /* Make sure image isn't bigger than I can handle */ - - if ((long) cinfo->image_height > (long) JPEG_MAX_DIMENSION || - - (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION) - - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); - - - - /* For now, precision must match compiled-in value... */ - - if (cinfo->data_precision != BITS_IN_JSAMPLE) - - ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); - - - - /* Check that number of components won't exceed internal array sizes */ - - if (cinfo->num_components > MAX_COMPONENTS) - - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - - MAX_COMPONENTS); - - - - /* Compute maximum sampling factors; check factor validity */ - - cinfo->max_h_samp_factor = 1; - - cinfo->max_v_samp_factor = 1; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR || - - compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR) - - ERREXIT(cinfo, JERR_BAD_SAMPLING); - - cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, - - compptr->h_samp_factor); - - cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, - - compptr->v_samp_factor); - - } - - - - /* We initialize DCT_scaled_size and min_DCT_scaled_size to DCTSIZE. - - * In the full decompressor, this will be overridden by jdmaster.c; - - * but in the transcoder, jdmaster.c is not used, so we must do it here. - - */ - - cinfo->min_DCT_scaled_size = DCTSIZE; - - - - /* Compute dimensions of components */ - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - compptr->DCT_scaled_size = DCTSIZE; - - /* Size in DCT blocks */ - - compptr->width_in_blocks = (JDIMENSION) - - jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, - - (long) (cinfo->max_h_samp_factor * DCTSIZE)); - - compptr->height_in_blocks = (JDIMENSION) - - jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, - - (long) (cinfo->max_v_samp_factor * DCTSIZE)); - - /* downsampled_width and downsampled_height will also be overridden by - - * jdmaster.c if we are doing full decompression. The transcoder library - - * doesn't use these values, but the calling application might. - - */ - - /* Size in samples */ - - compptr->downsampled_width = (JDIMENSION) - - jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, - - (long) cinfo->max_h_samp_factor); - - compptr->downsampled_height = (JDIMENSION) - - jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, - - (long) cinfo->max_v_samp_factor); - - /* Mark component needed, until color conversion says otherwise */ - - compptr->component_needed = TRUE; - - /* Mark no quantization table yet saved for component */ - - compptr->quant_table = NULL; - - } - - - - /* Compute number of fully interleaved MCU rows. */ - - cinfo->total_iMCU_rows = (JDIMENSION) - - jdiv_round_up((long) cinfo->image_height, - - (long) (cinfo->max_v_samp_factor*DCTSIZE)); - - - - /* Decide whether file contains multiple scans */ - - if (cinfo->comps_in_scan < cinfo->num_components || cinfo->progressive_mode) - - cinfo->inputctl->has_multiple_scans = TRUE; - - else - - cinfo->inputctl->has_multiple_scans = FALSE; - -} - - - - - -LOCAL void - -per_scan_setup (j_decompress_ptr cinfo) - -/* Do computations that are needed before processing a JPEG scan */ - -/* cinfo->comps_in_scan and cinfo->cur_comp_info[] were set from SOS marker */ - -{ - - int ci, mcublks, tmp; - - jpeg_component_info *compptr; - - - - if (cinfo->comps_in_scan == 1) { - - - - /* Noninterleaved (single-component) scan */ - - compptr = cinfo->cur_comp_info[0]; - - - - /* Overall image size in MCUs */ - - cinfo->MCUs_per_row = compptr->width_in_blocks; - - cinfo->MCU_rows_in_scan = compptr->height_in_blocks; - - - - /* For noninterleaved scan, always one block per MCU */ - - compptr->MCU_width = 1; - - compptr->MCU_height = 1; - - compptr->MCU_blocks = 1; - - compptr->MCU_sample_width = compptr->DCT_scaled_size; - - compptr->last_col_width = 1; - - /* For noninterleaved scans, it is convenient to define last_row_height - - * as the number of block rows present in the last iMCU row. - - */ - - tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - - if (tmp == 0) tmp = compptr->v_samp_factor; - - compptr->last_row_height = tmp; - - - - /* Prepare array describing MCU composition */ - - cinfo->blocks_in_MCU = 1; - - cinfo->MCU_membership[0] = 0; - - - - } else { - - - - /* Interleaved (multi-component) scan */ - - if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) - - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, - - MAX_COMPS_IN_SCAN); - - - - /* Overall image size in MCUs */ - - cinfo->MCUs_per_row = (JDIMENSION) - - jdiv_round_up((long) cinfo->image_width, - - (long) (cinfo->max_h_samp_factor*DCTSIZE)); - - cinfo->MCU_rows_in_scan = (JDIMENSION) - - jdiv_round_up((long) cinfo->image_height, - - (long) (cinfo->max_v_samp_factor*DCTSIZE)); - - - - cinfo->blocks_in_MCU = 0; - - - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - - compptr = cinfo->cur_comp_info[ci]; - - /* Sampling factors give # of blocks of component in each MCU */ - - compptr->MCU_width = compptr->h_samp_factor; - - compptr->MCU_height = compptr->v_samp_factor; - - compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; - - compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_scaled_size; - - /* Figure number of non-dummy blocks in last MCU column & row */ - - tmp = (int) (compptr->width_in_blocks % compptr->MCU_width); - - if (tmp == 0) tmp = compptr->MCU_width; - - compptr->last_col_width = tmp; - - tmp = (int) (compptr->height_in_blocks % compptr->MCU_height); - - if (tmp == 0) tmp = compptr->MCU_height; - - compptr->last_row_height = tmp; - - /* Prepare array describing MCU composition */ - - mcublks = compptr->MCU_blocks; - - if (cinfo->blocks_in_MCU + mcublks > D_MAX_BLOCKS_IN_MCU) - - ERREXIT(cinfo, JERR_BAD_MCU_SIZE); - - while (mcublks-- > 0) { - - cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; - - } - - } - - - - } - -} - - - - - -/* - - * Save away a copy of the Q-table referenced by each component present - - * in the current scan, unless already saved during a prior scan. - - * - - * In a multiple-scan JPEG file, the encoder could assign different components - - * the same Q-table slot number, but change table definitions between scans - - * so that each component uses a different Q-table. (The IJG encoder is not - - * currently capable of doing this, but other encoders might.) Since we want - - * to be able to dequantize all the components at the end of the file, this - - * means that we have to save away the table actually used for each component. - - * We do this by copying the table at the start of the first scan containing - - * the component. - - * The JPEG spec prohibits the encoder from changing the contents of a Q-table - - * slot between scans of a component using that slot. If the encoder does so - - * anyway, this decoder will simply use the Q-table values that were current - - * at the start of the first scan for the component. - - * - - * The decompressor output side looks only at the saved quant tables, - - * not at the current Q-table slots. - - */ - - - -LOCAL void - -latch_quant_tables (j_decompress_ptr cinfo) - -{ - - int ci, qtblno; - - jpeg_component_info *compptr; - - JQUANT_TBL * qtbl; - - - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - - compptr = cinfo->cur_comp_info[ci]; - - /* No work if we already saved Q-table for this component */ - - if (compptr->quant_table != NULL) - - continue; - - /* Make sure specified quantization table is present */ - - qtblno = compptr->quant_tbl_no; - - if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS || - - cinfo->quant_tbl_ptrs[qtblno] == NULL) - - ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno); - - /* OK, save away the quantization table */ - - qtbl = (JQUANT_TBL *) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(JQUANT_TBL)); - - MEMCOPY(qtbl, cinfo->quant_tbl_ptrs[qtblno], SIZEOF(JQUANT_TBL)); - - compptr->quant_table = qtbl; - - } - -} - - - - - -/* - - * Initialize the input modules to read a scan of compressed data. - - * The first call to this is done by jdmaster.c after initializing - - * the entire decompressor (during jpeg_start_decompress). - - * Subsequent calls come from consume_markers, below. - - */ - - - -METHODDEF void - -start_input_pass (j_decompress_ptr cinfo) - -{ - - per_scan_setup(cinfo); - - latch_quant_tables(cinfo); - - (*cinfo->entropy->start_pass) (cinfo); - - (*cinfo->coef->start_input_pass) (cinfo); - - cinfo->inputctl->consume_input = cinfo->coef->consume_data; - -} - - - - - -/* - - * Finish up after inputting a compressed-data scan. - - * This is called by the coefficient controller after it's read all - - * the expected data of the scan. - - */ - - - -METHODDEF void - -finish_input_pass (j_decompress_ptr cinfo) - -{ - - cinfo->inputctl->consume_input = consume_markers; - -} - - - - - -/* - - * Read JPEG markers before, between, or after compressed-data scans. - - * Change state as necessary when a new scan is reached. - - * Return value is JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - - * - - * The consume_input method pointer points either here or to the - - * coefficient controller's consume_data routine, depending on whether - - * we are reading a compressed data segment or inter-segment markers. - - */ - - - -METHODDEF int - -consume_markers (j_decompress_ptr cinfo) - -{ - - my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; - - int val; - - - - if (inputctl->pub.eoi_reached) /* After hitting EOI, read no further */ - - return JPEG_REACHED_EOI; - - - - val = (*cinfo->marker->read_markers) (cinfo); - - - - switch (val) { - - case JPEG_REACHED_SOS: /* Found SOS */ - - if (inputctl->inheaders) { /* 1st SOS */ - - initial_setup(cinfo); - - inputctl->inheaders = FALSE; - - /* Note: start_input_pass must be called by jdmaster.c - - * before any more input can be consumed. jdapi.c is - - * responsible for enforcing this sequencing. - - */ - - } else { /* 2nd or later SOS marker */ - - if (! inputctl->pub.has_multiple_scans) - - ERREXIT(cinfo, JERR_EOI_EXPECTED); /* Oops, I wasn't expecting this! */ - - start_input_pass(cinfo); - - } - - break; - - case JPEG_REACHED_EOI: /* Found EOI */ - - inputctl->pub.eoi_reached = TRUE; - - if (inputctl->inheaders) { /* Tables-only datastream, apparently */ - - if (cinfo->marker->saw_SOF) - - ERREXIT(cinfo, JERR_SOF_NO_SOS); - - } else { - - /* Prevent infinite loop in coef ctlr's decompress_data routine - - * if user set output_scan_number larger than number of scans. - - */ - - if (cinfo->output_scan_number > cinfo->input_scan_number) - - cinfo->output_scan_number = cinfo->input_scan_number; - - } - - break; - - case JPEG_SUSPENDED: - - break; - - } - - - - return val; - -} - - - - - -/* - - * Reset state to begin a fresh datastream. - - */ - - - -METHODDEF void - -reset_input_controller (j_decompress_ptr cinfo) - -{ - - my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; - - - - inputctl->pub.consume_input = consume_markers; - - inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ - - inputctl->pub.eoi_reached = FALSE; - - inputctl->inheaders = TRUE; - - /* Reset other modules */ - - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - - (*cinfo->marker->reset_marker_reader) (cinfo); - - /* Reset progression state -- would be cleaner if entropy decoder did this */ - - cinfo->coef_bits = NULL; - -} - - - - - -/* - - * Initialize the input controller module. - - * This is called only once, when the decompression object is created. - - */ - - - -GLOBAL void - -jinit_input_controller (j_decompress_ptr cinfo) - -{ - - my_inputctl_ptr inputctl; - - - - /* Create subobject in permanent pool */ - - inputctl = (my_inputctl_ptr) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - - SIZEOF(my_input_controller)); - - cinfo->inputctl = (struct jpeg_input_controller *) inputctl; - - /* Initialize method pointers */ - - inputctl->pub.consume_input = consume_markers; - - inputctl->pub.reset_input_controller = reset_input_controller; - - inputctl->pub.start_input_pass = start_input_pass; - - inputctl->pub.finish_input_pass = finish_input_pass; - - /* Initialize state: can't use reset_input_controller since we don't - - * want to try to reset other modules yet. - - */ - - inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ - - inputctl->pub.eoi_reached = FALSE; - - inputctl->inheaders = TRUE; - -} - diff --git a/libs/jpeg6/jdmainct.cpp b/libs/jpeg6/jdmainct.cpp deleted file mode 100644 index 7b4c2559..00000000 --- a/libs/jpeg6/jdmainct.cpp +++ /dev/null @@ -1,1024 +0,0 @@ -/* - - * jdmainct.c - - * - - * Copyright (C) 1994-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains the main buffer controller for decompression. - - * The main buffer lies between the JPEG decompressor proper and the - - * post-processor; it holds downsampled data in the JPEG colorspace. - - * - - * Note that this code is bypassed in raw-data mode, since the application - - * supplies the equivalent of the main buffer in that case. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* - - * In the current system design, the main buffer need never be a full-image - - * buffer; any full-height buffers will be found inside the coefficient or - - * postprocessing controllers. Nonetheless, the main controller is not - - * trivial. Its responsibility is to provide context rows for upsampling/ - - * rescaling, and doing this in an efficient fashion is a bit tricky. - - * - - * Postprocessor input data is counted in "row groups". A row group - - * is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size) - - * sample rows of each component. (We require DCT_scaled_size values to be - - * chosen such that these numbers are integers. In practice DCT_scaled_size - - * values will likely be powers of two, so we actually have the stronger - - * condition that DCT_scaled_size / min_DCT_scaled_size is an integer.) - - * Upsampling will typically produce max_v_samp_factor pixel rows from each - - * row group (times any additional scale factor that the upsampler is - - * applying). - - * - - * The coefficient controller will deliver data to us one iMCU row at a time; - - * each iMCU row contains v_samp_factor * DCT_scaled_size sample rows, or - - * exactly min_DCT_scaled_size row groups. (This amount of data corresponds - - * to one row of MCUs when the image is fully interleaved.) Note that the - - * number of sample rows varies across components, but the number of row - - * groups does not. Some garbage sample rows may be included in the last iMCU - - * row at the bottom of the image. - - * - - * Depending on the vertical scaling algorithm used, the upsampler may need - - * access to the sample row(s) above and below its current input row group. - - * The upsampler is required to set need_context_rows TRUE at global selection - - * time if so. When need_context_rows is FALSE, this controller can simply - - * obtain one iMCU row at a time from the coefficient controller and dole it - - * out as row groups to the postprocessor. - - * - - * When need_context_rows is TRUE, this controller guarantees that the buffer - - * passed to postprocessing contains at least one row group's worth of samples - - * above and below the row group(s) being processed. Note that the context - - * rows "above" the first passed row group appear at negative row offsets in - - * the passed buffer. At the top and bottom of the image, the required - - * context rows are manufactured by duplicating the first or last real sample - - * row; this avoids having special cases in the upsampling inner loops. - - * - - * The amount of context is fixed at one row group just because that's a - - * convenient number for this controller to work with. The existing - - * upsamplers really only need one sample row of context. An upsampler - - * supporting arbitrary output rescaling might wish for more than one row - - * group of context when shrinking the image; tough, we don't handle that. - - * (This is justified by the assumption that downsizing will be handled mostly - - * by adjusting the DCT_scaled_size values, so that the actual scale factor at - - * the upsample step needn't be much less than one.) - - * - - * To provide the desired context, we have to retain the last two row groups - - * of one iMCU row while reading in the next iMCU row. (The last row group - - * can't be processed until we have another row group for its below-context, - - * and so we have to save the next-to-last group too for its above-context.) - - * We could do this most simply by copying data around in our buffer, but - - * that'd be very slow. We can avoid copying any data by creating a rather - - * strange pointer structure. Here's how it works. We allocate a workspace - - * consisting of M+2 row groups (where M = min_DCT_scaled_size is the number - - * of row groups per iMCU row). We create two sets of redundant pointers to - - * the workspace. Labeling the physical row groups 0 to M+1, the synthesized - - * pointer lists look like this: - - * M+1 M-1 - - * master pointer --> 0 master pointer --> 0 - - * 1 1 - - * ... ... - - * M-3 M-3 - - * M-2 M - - * M-1 M+1 - - * M M-2 - - * M+1 M-1 - - * 0 0 - - * We read alternate iMCU rows using each master pointer; thus the last two - - * row groups of the previous iMCU row remain un-overwritten in the workspace. - - * The pointer lists are set up so that the required context rows appear to - - * be adjacent to the proper places when we pass the pointer lists to the - - * upsampler. - - * - - * The above pictures describe the normal state of the pointer lists. - - * At top and bottom of the image, we diddle the pointer lists to duplicate - - * the first or last sample row as necessary (this is cheaper than copying - - * sample rows around). - - * - - * This scheme breaks down if M < 2, ie, min_DCT_scaled_size is 1. In that - - * situation each iMCU row provides only one row group so the buffering logic - - * must be different (eg, we must read two iMCU rows before we can emit the - - * first row group). For now, we simply do not support providing context - - * rows when min_DCT_scaled_size is 1. That combination seems unlikely to - - * be worth providing --- if someone wants a 1/8th-size preview, they probably - - * want it quick and dirty, so a context-free upsampler is sufficient. - - */ - - - - - -/* Private buffer controller object */ - - - -typedef struct { - - struct jpeg_d_main_controller pub; /* public fields */ - - - - /* Pointer to allocated workspace (M or M+2 row groups). */ - - JSAMPARRAY buffer[MAX_COMPONENTS]; - - - - boolean buffer_full; /* Have we gotten an iMCU row from decoder? */ - - JDIMENSION rowgroup_ctr; /* counts row groups output to postprocessor */ - - - - /* Remaining fields are only used in the context case. */ - - - - /* These are the master pointers to the funny-order pointer lists. */ - - JSAMPIMAGE xbuffer[2]; /* pointers to weird pointer lists */ - - - - int whichptr; /* indicates which pointer set is now in use */ - - int context_state; /* process_data state machine status */ - - JDIMENSION rowgroups_avail; /* row groups available to postprocessor */ - - JDIMENSION iMCU_row_ctr; /* counts iMCU rows to detect image top/bot */ - -} my_main_controller; - - - -typedef my_main_controller * my_main_ptr; - - - -/* context_state values: */ - -#define CTX_PREPARE_FOR_IMCU 0 /* need to prepare for MCU row */ - -#define CTX_PROCESS_IMCU 1 /* feeding iMCU to postprocessor */ - -#define CTX_POSTPONED_ROW 2 /* feeding postponed row group */ - - - - - -/* Forward declarations */ - -METHODDEF void process_data_simple_main - - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); - -METHODDEF void process_data_context_main - - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); - -#ifdef QUANT_2PASS_SUPPORTED - -METHODDEF void process_data_crank_post - - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); - -#endif - - - - - -LOCAL void - -alloc_funny_pointers (j_decompress_ptr cinfo) - -/* Allocate space for the funny pointer lists. - - * This is done only once, not once per pass. - - */ - -{ - - my_main_ptr main = (my_main_ptr) cinfo->main; - - int ci, rgroup; - - int M = cinfo->min_DCT_scaled_size; - - jpeg_component_info *compptr; - - JSAMPARRAY xbuf; - - - - /* Get top-level space for component array pointers. - - * We alloc both arrays with one call to save a few cycles. - - */ - - main->xbuffer[0] = (JSAMPIMAGE) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - cinfo->num_components * 2 * SIZEOF(JSAMPARRAY)); - - main->xbuffer[1] = main->xbuffer[0] + cinfo->num_components; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) / - - cinfo->min_DCT_scaled_size; /* height of a row group of component */ - - /* Get space for pointer lists --- M+4 row groups in each list. - - * We alloc both pointer lists with one call to save a few cycles. - - */ - - xbuf = (JSAMPARRAY) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - 2 * (rgroup * (M + 4)) * SIZEOF(JSAMPROW)); - - xbuf += rgroup; /* want one row group at negative offsets */ - - main->xbuffer[0][ci] = xbuf; - - xbuf += rgroup * (M + 4); - - main->xbuffer[1][ci] = xbuf; - - } - -} - - - - - -LOCAL void - -make_funny_pointers (j_decompress_ptr cinfo) - -/* Create the funny pointer lists discussed in the comments above. - - * The actual workspace is already allocated (in main->buffer), - - * and the space for the pointer lists is allocated too. - - * This routine just fills in the curiously ordered lists. - - * This will be repeated at the beginning of each pass. - - */ - -{ - - my_main_ptr main = (my_main_ptr) cinfo->main; - - int ci, i, rgroup; - - int M = cinfo->min_DCT_scaled_size; - - jpeg_component_info *compptr; - - JSAMPARRAY buf, xbuf0, xbuf1; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) / - - cinfo->min_DCT_scaled_size; /* height of a row group of component */ - - xbuf0 = main->xbuffer[0][ci]; - - xbuf1 = main->xbuffer[1][ci]; - - /* First copy the workspace pointers as-is */ - - buf = main->buffer[ci]; - - for (i = 0; i < rgroup * (M + 2); i++) { - - xbuf0[i] = xbuf1[i] = buf[i]; - - } - - /* In the second list, put the last four row groups in swapped order */ - - for (i = 0; i < rgroup * 2; i++) { - - xbuf1[rgroup*(M-2) + i] = buf[rgroup*M + i]; - - xbuf1[rgroup*M + i] = buf[rgroup*(M-2) + i]; - - } - - /* The wraparound pointers at top and bottom will be filled later - - * (see set_wraparound_pointers, below). Initially we want the "above" - - * pointers to duplicate the first actual data line. This only needs - - * to happen in xbuffer[0]. - - */ - - for (i = 0; i < rgroup; i++) { - - xbuf0[i - rgroup] = xbuf0[0]; - - } - - } - -} - - - - - -LOCAL void - -set_wraparound_pointers (j_decompress_ptr cinfo) - -/* Set up the "wraparound" pointers at top and bottom of the pointer lists. - - * This changes the pointer list state from top-of-image to the normal state. - - */ - -{ - - my_main_ptr main = (my_main_ptr) cinfo->main; - - int ci, i, rgroup; - - int M = cinfo->min_DCT_scaled_size; - - jpeg_component_info *compptr; - - JSAMPARRAY xbuf0, xbuf1; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) / - - cinfo->min_DCT_scaled_size; /* height of a row group of component */ - - xbuf0 = main->xbuffer[0][ci]; - - xbuf1 = main->xbuffer[1][ci]; - - for (i = 0; i < rgroup; i++) { - - xbuf0[i - rgroup] = xbuf0[rgroup*(M+1) + i]; - - xbuf1[i - rgroup] = xbuf1[rgroup*(M+1) + i]; - - xbuf0[rgroup*(M+2) + i] = xbuf0[i]; - - xbuf1[rgroup*(M+2) + i] = xbuf1[i]; - - } - - } - -} - - - - - -LOCAL void - -set_bottom_pointers (j_decompress_ptr cinfo) - -/* Change the pointer lists to duplicate the last sample row at the bottom - - * of the image. whichptr indicates which xbuffer holds the final iMCU row. - - * Also sets rowgroups_avail to indicate number of nondummy row groups in row. - - */ - -{ - - my_main_ptr main = (my_main_ptr) cinfo->main; - - int ci, i, rgroup, iMCUheight, rows_left; - - jpeg_component_info *compptr; - - JSAMPARRAY xbuf; - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* Count sample rows in one iMCU row and in one row group */ - - iMCUheight = compptr->v_samp_factor * compptr->DCT_scaled_size; - - rgroup = iMCUheight / cinfo->min_DCT_scaled_size; - - /* Count nondummy sample rows remaining for this component */ - - rows_left = (int) (compptr->downsampled_height % (JDIMENSION) iMCUheight); - - if (rows_left == 0) rows_left = iMCUheight; - - /* Count nondummy row groups. Should get same answer for each component, - - * so we need only do it once. - - */ - - if (ci == 0) { - - main->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1); - - } - - /* Duplicate the last real sample row rgroup*2 times; this pads out the - - * last partial rowgroup and ensures at least one full rowgroup of context. - - */ - - xbuf = main->xbuffer[main->whichptr][ci]; - - for (i = 0; i < rgroup * 2; i++) { - - xbuf[rows_left + i] = xbuf[rows_left-1]; - - } - - } - -} - - - - - -/* - - * Initialize for a processing pass. - - */ - - - -METHODDEF void - -start_pass_main (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) - -{ - - my_main_ptr main = (my_main_ptr) cinfo->main; - - - - switch (pass_mode) { - - case JBUF_PASS_THRU: - - if (cinfo->upsample->need_context_rows) { - - main->pub.process_data = process_data_context_main; - - make_funny_pointers(cinfo); /* Create the xbuffer[] lists */ - - main->whichptr = 0; /* Read first iMCU row into xbuffer[0] */ - - main->context_state = CTX_PREPARE_FOR_IMCU; - - main->iMCU_row_ctr = 0; - - } else { - - /* Simple case with no context needed */ - - main->pub.process_data = process_data_simple_main; - - } - - main->buffer_full = FALSE; /* Mark buffer empty */ - - main->rowgroup_ctr = 0; - - break; - -#ifdef QUANT_2PASS_SUPPORTED - - case JBUF_CRANK_DEST: - - /* For last pass of 2-pass quantization, just crank the postprocessor */ - - main->pub.process_data = process_data_crank_post; - - break; - -#endif - - default: - - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - break; - - } - -} - - - - - -/* - - * Process some data. - - * This handles the simple case where no context is required. - - */ - - - -METHODDEF void - -process_data_simple_main (j_decompress_ptr cinfo, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail) - -{ - - my_main_ptr main = (my_main_ptr) cinfo->main; - - JDIMENSION rowgroups_avail; - - - - /* Read input data if we haven't filled the main buffer yet */ - - if (! main->buffer_full) { - - if (! (*cinfo->coef->decompress_data) (cinfo, main->buffer)) - - return; /* suspension forced, can do nothing more */ - - main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ - - } - - - - /* There are always min_DCT_scaled_size row groups in an iMCU row. */ - - rowgroups_avail = (JDIMENSION) cinfo->min_DCT_scaled_size; - - /* Note: at the bottom of the image, we may pass extra garbage row groups - - * to the postprocessor. The postprocessor has to check for bottom - - * of image anyway (at row resolution), so no point in us doing it too. - - */ - - - - /* Feed the postprocessor */ - - (*cinfo->post->post_process_data) (cinfo, main->buffer, - - &main->rowgroup_ctr, rowgroups_avail, - - output_buf, out_row_ctr, out_rows_avail); - - - - /* Has postprocessor consumed all the data yet? If so, mark buffer empty */ - - if (main->rowgroup_ctr >= rowgroups_avail) { - - main->buffer_full = FALSE; - - main->rowgroup_ctr = 0; - - } - -} - - - - - -/* - - * Process some data. - - * This handles the case where context rows must be provided. - - */ - - - -METHODDEF void - -process_data_context_main (j_decompress_ptr cinfo, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail) - -{ - - my_main_ptr main = (my_main_ptr) cinfo->main; - - - - /* Read input data if we haven't filled the main buffer yet */ - - if (! main->buffer_full) { - - if (! (*cinfo->coef->decompress_data) (cinfo, - - main->xbuffer[main->whichptr])) - - return; /* suspension forced, can do nothing more */ - - main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ - - main->iMCU_row_ctr++; /* count rows received */ - - } - - - - /* Postprocessor typically will not swallow all the input data it is handed - - * in one call (due to filling the output buffer first). Must be prepared - - * to exit and restart. This switch lets us keep track of how far we got. - - * Note that each case falls through to the next on successful completion. - - */ - - switch (main->context_state) { - - case CTX_POSTPONED_ROW: - - /* Call postprocessor using previously set pointers for postponed row */ - - (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], - - &main->rowgroup_ctr, main->rowgroups_avail, - - output_buf, out_row_ctr, out_rows_avail); - - if (main->rowgroup_ctr < main->rowgroups_avail) - - return; /* Need to suspend */ - - main->context_state = CTX_PREPARE_FOR_IMCU; - - if (*out_row_ctr >= out_rows_avail) - - return; /* Postprocessor exactly filled output buf */ - - /*FALLTHROUGH*/ - - case CTX_PREPARE_FOR_IMCU: - - /* Prepare to process first M-1 row groups of this iMCU row */ - - main->rowgroup_ctr = 0; - - main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_scaled_size - 1); - - /* Check for bottom of image: if so, tweak pointers to "duplicate" - - * the last sample row, and adjust rowgroups_avail to ignore padding rows. - - */ - - if (main->iMCU_row_ctr == cinfo->total_iMCU_rows) - - set_bottom_pointers(cinfo); - - main->context_state = CTX_PROCESS_IMCU; - - /*FALLTHROUGH*/ - - case CTX_PROCESS_IMCU: - - /* Call postprocessor using previously set pointers */ - - (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], - - &main->rowgroup_ctr, main->rowgroups_avail, - - output_buf, out_row_ctr, out_rows_avail); - - if (main->rowgroup_ctr < main->rowgroups_avail) - - return; /* Need to suspend */ - - /* After the first iMCU, change wraparound pointers to normal state */ - - if (main->iMCU_row_ctr == 1) - - set_wraparound_pointers(cinfo); - - /* Prepare to load new iMCU row using other xbuffer list */ - - main->whichptr ^= 1; /* 0=>1 or 1=>0 */ - - main->buffer_full = FALSE; - - /* Still need to process last row group of this iMCU row, */ - - /* which is saved at index M+1 of the other xbuffer */ - - main->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_scaled_size + 1); - - main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_scaled_size + 2); - - main->context_state = CTX_POSTPONED_ROW; - - } - -} - - - - - -/* - - * Process some data. - - * Final pass of two-pass quantization: just call the postprocessor. - - * Source data will be the postprocessor controller's internal buffer. - - */ - - - -#ifdef QUANT_2PASS_SUPPORTED - - - -METHODDEF void - -process_data_crank_post (j_decompress_ptr cinfo, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail) - -{ - - (*cinfo->post->post_process_data) (cinfo, (JSAMPIMAGE) NULL, - - (JDIMENSION *) NULL, (JDIMENSION) 0, - - output_buf, out_row_ctr, out_rows_avail); - -} - - - -#endif /* QUANT_2PASS_SUPPORTED */ - - - - - -/* - - * Initialize main buffer controller. - - */ - - - -GLOBAL void - -jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer) - -{ - - my_main_ptr main; - - int ci, rgroup, ngroups; - - jpeg_component_info *compptr; - - - - main = (my_main_ptr) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(my_main_controller)); - - cinfo->main = (struct jpeg_d_main_controller *) main; - - main->pub.start_pass = start_pass_main; - - - - if (need_full_buffer) /* shouldn't happen */ - - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - - - /* Allocate the workspace. - - * ngroups is the number of row groups we need. - - */ - - if (cinfo->upsample->need_context_rows) { - - if (cinfo->min_DCT_scaled_size < 2) /* unsupported, see comments above */ - - ERREXIT(cinfo, JERR_NOTIMPL); - - alloc_funny_pointers(cinfo); /* Alloc space for xbuffer[] lists */ - - ngroups = cinfo->min_DCT_scaled_size + 2; - - } else { - - ngroups = cinfo->min_DCT_scaled_size; - - } - - - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) / - - cinfo->min_DCT_scaled_size; /* height of a row group of component */ - - main->buffer[ci] = (*cinfo->mem->alloc_sarray) - - ((j_common_ptr) cinfo, JPOOL_IMAGE, - - compptr->width_in_blocks * compptr->DCT_scaled_size, - - (JDIMENSION) (rgroup * ngroups)); - - } - -} - diff --git a/libs/jpeg6/jdmarker.cpp b/libs/jpeg6/jdmarker.cpp deleted file mode 100644 index 15760981..00000000 --- a/libs/jpeg6/jdmarker.cpp +++ /dev/null @@ -1,1052 +0,0 @@ -/* - * jdmarker.c - * - * Copyright (C) 1991-1995, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to decode JPEG datastream markers. - * Most of the complexity arises from our desire to support input - * suspension: if not all of the data for a marker is available, - * we must exit back to the application. On resumption, we reprocess - * the marker. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "radiant_jpeglib.h" - - -typedef enum { /* JPEG marker codes */ - M_SOF0 = 0xc0, - M_SOF1 = 0xc1, - M_SOF2 = 0xc2, - M_SOF3 = 0xc3, - - M_SOF5 = 0xc5, - M_SOF6 = 0xc6, - M_SOF7 = 0xc7, - - M_JPG = 0xc8, - M_SOF9 = 0xc9, - M_SOF10 = 0xca, - M_SOF11 = 0xcb, - - M_SOF13 = 0xcd, - M_SOF14 = 0xce, - M_SOF15 = 0xcf, - - M_DHT = 0xc4, - - M_DAC = 0xcc, - - M_RST0 = 0xd0, - M_RST1 = 0xd1, - M_RST2 = 0xd2, - M_RST3 = 0xd3, - M_RST4 = 0xd4, - M_RST5 = 0xd5, - M_RST6 = 0xd6, - M_RST7 = 0xd7, - - M_SOI = 0xd8, - M_EOI = 0xd9, - M_SOS = 0xda, - M_DQT = 0xdb, - M_DNL = 0xdc, - M_DRI = 0xdd, - M_DHP = 0xde, - M_EXP = 0xdf, - - M_APP0 = 0xe0, - M_APP1 = 0xe1, - M_APP2 = 0xe2, - M_APP3 = 0xe3, - M_APP4 = 0xe4, - M_APP5 = 0xe5, - M_APP6 = 0xe6, - M_APP7 = 0xe7, - M_APP8 = 0xe8, - M_APP9 = 0xe9, - M_APP10 = 0xea, - M_APP11 = 0xeb, - M_APP12 = 0xec, - M_APP13 = 0xed, - M_APP14 = 0xee, - M_APP15 = 0xef, - - M_JPG0 = 0xf0, - M_JPG13 = 0xfd, - M_COM = 0xfe, - - M_TEM = 0x01, - - M_ERROR = 0x100 -} JPEG_MARKER; - - -/* - * Macros for fetching data from the data source module. - * - * At all times, cinfo->src->next_input_byte and ->bytes_in_buffer reflect - * the current restart point; we update them only when we have reached a - * suitable place to restart if a suspension occurs. - */ - -/* Declare and initialize local copies of input pointer/count */ -#define INPUT_VARS(cinfo) \ - struct jpeg_source_mgr * datasrc = (cinfo)->src; \ - const JOCTET * next_input_byte = datasrc->next_input_byte; \ - size_t bytes_in_buffer = datasrc->bytes_in_buffer - -/* Unload the local copies --- do this only at a restart boundary */ -#define INPUT_SYNC(cinfo) \ - ( datasrc->next_input_byte = next_input_byte, \ - datasrc->bytes_in_buffer = bytes_in_buffer ) - -/* Reload the local copies --- seldom used except in MAKE_BYTE_AVAIL */ -#define INPUT_RELOAD(cinfo) \ - ( next_input_byte = datasrc->next_input_byte, \ - bytes_in_buffer = datasrc->bytes_in_buffer ) - -/* Internal macro for INPUT_BYTE and INPUT_2BYTES: make a byte available. - * Note we do *not* do INPUT_SYNC before calling fill_input_buffer, - * but we must reload the local copies after a successful fill. - */ -#define MAKE_BYTE_AVAIL(cinfo,action) \ - if (bytes_in_buffer == 0) { \ - if (! (*datasrc->fill_input_buffer) (cinfo)) \ - { action; } \ - INPUT_RELOAD(cinfo); \ - } \ - bytes_in_buffer-- - -/* Read a byte into variable V. - * If must suspend, take the specified action (typically "return FALSE"). - */ -#define INPUT_BYTE(cinfo,V,action) \ - MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ - V = GETJOCTET(*next_input_byte++); ) - -/* As above, but read two bytes interpreted as an unsigned 16-bit integer. - * V should be declared unsigned int or perhaps INT32. - */ -#define INPUT_2BYTES(cinfo,V,action) \ - MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ - V = ((unsigned int) GETJOCTET(*next_input_byte++)) << 8; \ - MAKE_BYTE_AVAIL(cinfo,action); \ - V += GETJOCTET(*next_input_byte++); ) - - -/* - * Routines to process JPEG markers. - * - * Entry condition: JPEG marker itself has been read and its code saved - * in cinfo->unread_marker; input restart point is just after the marker. - * - * Exit: if return TRUE, have read and processed any parameters, and have - * updated the restart point to point after the parameters. - * If return FALSE, was forced to suspend before reaching end of - * marker parameters; restart point has not been moved. Same routine - * will be called again after application supplies more input data. - * - * This approach to suspension assumes that all of a marker's parameters can - * fit into a single input bufferload. This should hold for "normal" - * markers. Some COM/APPn markers might have large parameter segments, - * but we use skip_input_data to get past those, and thereby put the problem - * on the source manager's shoulders. - * - * Note that we don't bother to avoid duplicate trace messages if a - * suspension occurs within marker parameters. Other side effects - * require more care. - */ - - -LOCAL boolean -get_soi (j_decompress_ptr cinfo) -/* Process an SOI marker */ -{ - int i; - - TRACEMS(cinfo, 1, JTRC_SOI); - - if (cinfo->marker->saw_SOI) - ERREXIT(cinfo, JERR_SOI_DUPLICATE); - - /* Reset all parameters that are defined to be reset by SOI */ - - for (i = 0; i < NUM_ARITH_TBLS; i++) { - cinfo->arith_dc_L[i] = 0; - cinfo->arith_dc_U[i] = 1; - cinfo->arith_ac_K[i] = 5; - } - cinfo->restart_interval = 0; - - /* Set initial assumptions for colorspace etc */ - - cinfo->jpeg_color_space = JCS_UNKNOWN; - cinfo->CCIR601_sampling = FALSE; /* Assume non-CCIR sampling??? */ - - cinfo->saw_JFIF_marker = FALSE; - cinfo->density_unit = 0; /* set default JFIF APP0 values */ - cinfo->X_density = 1; - cinfo->Y_density = 1; - cinfo->saw_Adobe_marker = FALSE; - cinfo->Adobe_transform = 0; - - cinfo->marker->saw_SOI = TRUE; - - return TRUE; -} - - -LOCAL boolean -get_sof (j_decompress_ptr cinfo, boolean is_prog, boolean is_arith) -/* Process a SOFn marker */ -{ - INT32 length; - int c, ci; - jpeg_component_info * compptr; - INPUT_VARS(cinfo); - - cinfo->progressive_mode = is_prog; - cinfo->arith_code = is_arith; - - INPUT_2BYTES(cinfo, length, return FALSE); - - INPUT_BYTE(cinfo, cinfo->data_precision, return FALSE); - INPUT_2BYTES(cinfo, cinfo->image_height, return FALSE); - INPUT_2BYTES(cinfo, cinfo->image_width, return FALSE); - INPUT_BYTE(cinfo, cinfo->num_components, return FALSE); - - length -= 8; - - TRACEMS4(cinfo, 1, JTRC_SOF, cinfo->unread_marker, - (int) cinfo->image_width, (int) cinfo->image_height, - cinfo->num_components); - - if (cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOF_DUPLICATE); - - /* We don't support files in which the image height is initially specified */ - /* as 0 and is later redefined by DNL. As long as we have to check that, */ - /* might as well have a general sanity check. */ - if (cinfo->image_height <= 0 || cinfo->image_width <= 0 - || cinfo->num_components <= 0) - ERREXIT(cinfo, JERR_EMPTY_IMAGE); - - if (length != (cinfo->num_components * 3)) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - if (cinfo->comp_info == NULL) /* do only once, even if suspend */ - cinfo->comp_info = (jpeg_component_info *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components * SIZEOF(jpeg_component_info)); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - compptr->component_index = ci; - INPUT_BYTE(cinfo, compptr->component_id, return FALSE); - INPUT_BYTE(cinfo, c, return FALSE); - compptr->h_samp_factor = (c >> 4) & 15; - compptr->v_samp_factor = (c ) & 15; - INPUT_BYTE(cinfo, compptr->quant_tbl_no, return FALSE); - - TRACEMS4(cinfo, 1, JTRC_SOF_COMPONENT, - compptr->component_id, compptr->h_samp_factor, - compptr->v_samp_factor, compptr->quant_tbl_no); - } - - cinfo->marker->saw_SOF = TRUE; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL boolean -get_sos (j_decompress_ptr cinfo) -/* Process a SOS marker */ -{ - INT32 length; - int i, ci, n, c, cc; - jpeg_component_info * compptr; - INPUT_VARS(cinfo); - - if (! cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOS_NO_SOF); - - INPUT_2BYTES(cinfo, length, return FALSE); - - INPUT_BYTE(cinfo, n, return FALSE); /* Number of components */ - - if (length != (n * 2 + 6) || n < 1 || n > MAX_COMPS_IN_SCAN) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - TRACEMS1(cinfo, 1, JTRC_SOS, n); - - cinfo->comps_in_scan = n; - - /* Collect the component-spec parameters */ - - for (i = 0; i < n; i++) { - INPUT_BYTE(cinfo, cc, return FALSE); - INPUT_BYTE(cinfo, c, return FALSE); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (cc == compptr->component_id) - goto id_found; - } - - ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc); - - id_found: - - cinfo->cur_comp_info[i] = compptr; - compptr->dc_tbl_no = (c >> 4) & 15; - compptr->ac_tbl_no = (c ) & 15; - - TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc, - compptr->dc_tbl_no, compptr->ac_tbl_no); - } - - /* Collect the additional scan parameters Ss, Se, Ah/Al. */ - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Ss = c; - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Se = c; - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Ah = (c >> 4) & 15; - cinfo->Al = (c ) & 15; - - TRACEMS4(cinfo, 1, JTRC_SOS_PARAMS, cinfo->Ss, cinfo->Se, - cinfo->Ah, cinfo->Al); - - /* Prepare to scan data & restart markers */ - cinfo->marker->next_restart_num = 0; - - /* Count another SOS marker */ - cinfo->input_scan_number++; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -METHODDEF boolean -get_app0 (j_decompress_ptr cinfo) -/* Process an APP0 marker */ -{ -#define JFIF_LEN 14 - INT32 length; - UINT8 b[JFIF_LEN]; - int buffp; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - /* See if a JFIF APP0 marker is present */ - - if (length >= JFIF_LEN) { - for (buffp = 0; buffp < JFIF_LEN; buffp++) - INPUT_BYTE(cinfo, b[buffp], return FALSE); - length -= JFIF_LEN; - - if (b[0]==0x4A && b[1]==0x46 && b[2]==0x49 && b[3]==0x46 && b[4]==0) { - /* Found JFIF APP0 marker: check version */ - /* Major version must be 1, anything else signals an incompatible change. - * We used to treat this as an error, but now it's a nonfatal warning, - * because some bozo at Hijaak couldn't read the spec. - * Minor version should be 0..2, but process anyway if newer. - */ - if (b[5] != 1) - WARNMS2(cinfo, JWRN_JFIF_MAJOR, b[5], b[6]); - else if (b[6] > 2) - TRACEMS2(cinfo, 1, JTRC_JFIF_MINOR, b[5], b[6]); - /* Save info */ - cinfo->saw_JFIF_marker = TRUE; - cinfo->density_unit = b[7]; - cinfo->X_density = (b[8] << 8) + b[9]; - cinfo->Y_density = (b[10] << 8) + b[11]; - TRACEMS3(cinfo, 1, JTRC_JFIF, - cinfo->X_density, cinfo->Y_density, cinfo->density_unit); - if (b[12] | b[13]) - TRACEMS2(cinfo, 1, JTRC_JFIF_THUMBNAIL, b[12], b[13]); - if (length != ((INT32) b[12] * (INT32) b[13] * (INT32) 3)) - TRACEMS1(cinfo, 1, JTRC_JFIF_BADTHUMBNAILSIZE, (int) length); - } else { - /* Start of APP0 does not match "JFIF" */ - TRACEMS1(cinfo, 1, JTRC_APP0, (int) length + JFIF_LEN); - } - } else { - /* Too short to be JFIF marker */ - TRACEMS1(cinfo, 1, JTRC_APP0, (int) length); - } - - INPUT_SYNC(cinfo); - if (length > 0) /* skip any remaining data -- could be lots */ - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - - -METHODDEF boolean -get_app14 (j_decompress_ptr cinfo) -/* Process an APP14 marker */ -{ -#define ADOBE_LEN 12 - INT32 length; - UINT8 b[ADOBE_LEN]; - int buffp; - unsigned int version, flags0, flags1, transform; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - /* See if an Adobe APP14 marker is present */ - - if (length >= ADOBE_LEN) { - for (buffp = 0; buffp < ADOBE_LEN; buffp++) - INPUT_BYTE(cinfo, b[buffp], return FALSE); - length -= ADOBE_LEN; - - if (b[0]==0x41 && b[1]==0x64 && b[2]==0x6F && b[3]==0x62 && b[4]==0x65) { - /* Found Adobe APP14 marker */ - version = (b[5] << 8) + b[6]; - flags0 = (b[7] << 8) + b[8]; - flags1 = (b[9] << 8) + b[10]; - transform = b[11]; - TRACEMS4(cinfo, 1, JTRC_ADOBE, version, flags0, flags1, transform); - cinfo->saw_Adobe_marker = TRUE; - cinfo->Adobe_transform = (UINT8) transform; - } else { - /* Start of APP14 does not match "Adobe" */ - TRACEMS1(cinfo, 1, JTRC_APP14, (int) length + ADOBE_LEN); - } - } else { - /* Too short to be Adobe marker */ - TRACEMS1(cinfo, 1, JTRC_APP14, (int) length); - } - - INPUT_SYNC(cinfo); - if (length > 0) /* skip any remaining data -- could be lots */ - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - - -LOCAL boolean -get_dac (j_decompress_ptr cinfo) -/* Process a DAC marker */ -{ - INT32 length; - int index, val; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 0) { - INPUT_BYTE(cinfo, index, return FALSE); - INPUT_BYTE(cinfo, val, return FALSE); - - length -= 2; - - TRACEMS2(cinfo, 1, JTRC_DAC, index, val); - - if (index < 0 || index >= (2*NUM_ARITH_TBLS)) - ERREXIT1(cinfo, JERR_DAC_INDEX, index); - - if (index >= NUM_ARITH_TBLS) { /* define AC table */ - cinfo->arith_ac_K[index-NUM_ARITH_TBLS] = (UINT8) val; - } else { /* define DC table */ - cinfo->arith_dc_L[index] = (UINT8) (val & 0x0F); - cinfo->arith_dc_U[index] = (UINT8) (val >> 4); - if (cinfo->arith_dc_L[index] > cinfo->arith_dc_U[index]) - ERREXIT1(cinfo, JERR_DAC_VALUE, val); - } - } - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL boolean -get_dht (j_decompress_ptr cinfo) -/* Process a DHT marker */ -{ - INT32 length; - UINT8 bits[17]; - UINT8 huffval[256]; - int i, index, count; - JHUFF_TBL **htblptr; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 0) { - INPUT_BYTE(cinfo, index, return FALSE); - - TRACEMS1(cinfo, 1, JTRC_DHT, index); - - bits[0] = 0; - count = 0; - for (i = 1; i <= 16; i++) { - INPUT_BYTE(cinfo, bits[i], return FALSE); - count += bits[i]; - } - - length -= 1 + 16; - - TRACEMS8(cinfo, 2, JTRC_HUFFBITS, - bits[1], bits[2], bits[3], bits[4], - bits[5], bits[6], bits[7], bits[8]); - TRACEMS8(cinfo, 2, JTRC_HUFFBITS, - bits[9], bits[10], bits[11], bits[12], - bits[13], bits[14], bits[15], bits[16]); - - if (count > 256 || ((INT32) count) > length) - ERREXIT(cinfo, JERR_DHT_COUNTS); - - for (i = 0; i < count; i++) - INPUT_BYTE(cinfo, huffval[i], return FALSE); - - length -= count; - - if (index & 0x10) { /* AC table definition */ - index -= 0x10; - htblptr = &cinfo->ac_huff_tbl_ptrs[index]; - } else { /* DC table definition */ - htblptr = &cinfo->dc_huff_tbl_ptrs[index]; - } - - if (index < 0 || index >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_DHT_INDEX, index); - - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - - MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits)); - MEMCOPY((*htblptr)->huffval, huffval, SIZEOF((*htblptr)->huffval)); - } - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL boolean -get_dqt (j_decompress_ptr cinfo) -/* Process a DQT marker */ -{ - INT32 length; - int n, i, prec; - unsigned int tmp; - JQUANT_TBL *quant_ptr; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 0) { - INPUT_BYTE(cinfo, n, return FALSE); - prec = n >> 4; - n &= 0x0F; - - TRACEMS2(cinfo, 1, JTRC_DQT, n, prec); - - if (n >= NUM_QUANT_TBLS) - ERREXIT1(cinfo, JERR_DQT_INDEX, n); - - if (cinfo->quant_tbl_ptrs[n] == NULL) - cinfo->quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) cinfo); - quant_ptr = cinfo->quant_tbl_ptrs[n]; - - for (i = 0; i < DCTSIZE2; i++) { - if (prec) - INPUT_2BYTES(cinfo, tmp, return FALSE); - else - INPUT_BYTE(cinfo, tmp, return FALSE); - quant_ptr->quantval[i] = (UINT16) tmp; - } - - for (i = 0; i < DCTSIZE2; i += 8) { - TRACEMS8(cinfo, 2, JTRC_QUANTVALS, - quant_ptr->quantval[i ], quant_ptr->quantval[i+1], - quant_ptr->quantval[i+2], quant_ptr->quantval[i+3], - quant_ptr->quantval[i+4], quant_ptr->quantval[i+5], - quant_ptr->quantval[i+6], quant_ptr->quantval[i+7]); - } - - length -= DCTSIZE2+1; - if (prec) length -= DCTSIZE2; - } - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL boolean -get_dri (j_decompress_ptr cinfo) -/* Process a DRI marker */ -{ - INT32 length; - unsigned int tmp; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - - if (length != 4) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_2BYTES(cinfo, tmp, return FALSE); - - TRACEMS1(cinfo, 1, JTRC_DRI, tmp); - - cinfo->restart_interval = tmp; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -METHODDEF boolean -skip_variable (j_decompress_ptr cinfo) -/* Skip over an unknown or uninteresting variable-length marker */ -{ - INT32 length; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - - TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, (int) length); - - INPUT_SYNC(cinfo); /* do before skip_input_data */ - (*cinfo->src->skip_input_data) (cinfo, (long) length - 2L); - - return TRUE; -} - - -/* - * Find the next JPEG marker, save it in cinfo->unread_marker. - * Returns FALSE if had to suspend before reaching a marker; - * in that case cinfo->unread_marker is unchanged. - * - * Note that the result might not be a valid marker code, - * but it will never be 0 or FF. - */ - -LOCAL boolean -next_marker (j_decompress_ptr cinfo) -{ - int c; - INPUT_VARS(cinfo); - - for (;;) { - INPUT_BYTE(cinfo, c, return FALSE); - /* Skip any non-FF bytes. - * This may look a bit inefficient, but it will not occur in a valid file. - * We sync after each discarded byte so that a suspending data source - * can discard the byte from its buffer. - */ - while (c != 0xFF) { - cinfo->marker->discarded_bytes++; - INPUT_SYNC(cinfo); - INPUT_BYTE(cinfo, c, return FALSE); - } - /* This loop swallows any duplicate FF bytes. Extra FFs are legal as - * pad bytes, so don't count them in discarded_bytes. We assume there - * will not be so many consecutive FF bytes as to overflow a suspending - * data source's input buffer. - */ - do { - INPUT_BYTE(cinfo, c, return FALSE); - } while (c == 0xFF); - if (c != 0) - break; /* found a valid marker, exit loop */ - /* Reach here if we found a stuffed-zero data sequence (FF/00). - * Discard it and loop back to try again. - */ - cinfo->marker->discarded_bytes += 2; - INPUT_SYNC(cinfo); - } - - if (cinfo->marker->discarded_bytes != 0) { - WARNMS2(cinfo, JWRN_EXTRANEOUS_DATA, cinfo->marker->discarded_bytes, c); - cinfo->marker->discarded_bytes = 0; - } - - cinfo->unread_marker = c; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL boolean -first_marker (j_decompress_ptr cinfo) -/* Like next_marker, but used to obtain the initial SOI marker. */ -/* For this marker, we do not allow preceding garbage or fill; otherwise, - * we might well scan an entire input file before realizing it ain't JPEG. - * If an application wants to process non-JFIF files, it must seek to the - * SOI before calling the JPEG library. - */ -{ - int c, c2; - INPUT_VARS(cinfo); - - INPUT_BYTE(cinfo, c, return FALSE); - INPUT_BYTE(cinfo, c2, return FALSE); - if (c != 0xFF || c2 != (int) M_SOI) - ERREXIT2(cinfo, JERR_NO_SOI, c, c2); - - cinfo->unread_marker = c2; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -/* - * Read markers until SOS or EOI. - * - * Returns same codes as are defined for jpeg_consume_input: - * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - */ - -METHODDEF int -read_markers (j_decompress_ptr cinfo) -{ - /* Outer loop repeats once for each marker. */ - for (;;) { - /* Collect the marker proper, unless we already did. */ - /* NB: first_marker() enforces the requirement that SOI appear first. */ - if (cinfo->unread_marker == 0) { - if (! cinfo->marker->saw_SOI) { - if (! first_marker(cinfo)) - return JPEG_SUSPENDED; - } else { - if (! next_marker(cinfo)) - return JPEG_SUSPENDED; - } - } - /* At this point cinfo->unread_marker contains the marker code and the - * input point is just past the marker proper, but before any parameters. - * A suspension will cause us to return with this state still true. - */ - switch (cinfo->unread_marker) { - case M_SOI: - if (! get_soi(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_SOF0: /* Baseline */ - case M_SOF1: /* Extended sequential, Huffman */ - if (! get_sof(cinfo, FALSE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF2: /* Progressive, Huffman */ - if (! get_sof(cinfo, TRUE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF9: /* Extended sequential, arithmetic */ - if (! get_sof(cinfo, FALSE, TRUE)) - return JPEG_SUSPENDED; - break; - - case M_SOF10: /* Progressive, arithmetic */ - if (! get_sof(cinfo, TRUE, TRUE)) - return JPEG_SUSPENDED; - break; - - /* Currently unsupported SOFn types */ - case M_SOF3: /* Lossless, Huffman */ - case M_SOF5: /* Differential sequential, Huffman */ - case M_SOF6: /* Differential progressive, Huffman */ - case M_SOF7: /* Differential lossless, Huffman */ - case M_JPG: /* Reserved for JPEG extensions */ - case M_SOF11: /* Lossless, arithmetic */ - case M_SOF13: /* Differential sequential, arithmetic */ - case M_SOF14: /* Differential progressive, arithmetic */ - case M_SOF15: /* Differential lossless, arithmetic */ - ERREXIT1(cinfo, JERR_SOF_UNSUPPORTED, cinfo->unread_marker); - break; - - case M_SOS: - if (! get_sos(cinfo)) - return JPEG_SUSPENDED; - cinfo->unread_marker = 0; /* processed the marker */ - return JPEG_REACHED_SOS; - - case M_EOI: - TRACEMS(cinfo, 1, JTRC_EOI); - cinfo->unread_marker = 0; /* processed the marker */ - return JPEG_REACHED_EOI; - - case M_DAC: - if (! get_dac(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DHT: - if (! get_dht(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DQT: - if (! get_dqt(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DRI: - if (! get_dri(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_APP0: - case M_APP1: - case M_APP2: - case M_APP3: - case M_APP4: - case M_APP5: - case M_APP6: - case M_APP7: - case M_APP8: - case M_APP9: - case M_APP10: - case M_APP11: - case M_APP12: - case M_APP13: - case M_APP14: - case M_APP15: - if (! (*cinfo->marker->process_APPn[cinfo->unread_marker - (int) M_APP0]) (cinfo)) - return JPEG_SUSPENDED; - break; - - case M_COM: - if (! (*cinfo->marker->process_COM) (cinfo)) - return JPEG_SUSPENDED; - break; - - case M_RST0: /* these are all parameterless */ - case M_RST1: - case M_RST2: - case M_RST3: - case M_RST4: - case M_RST5: - case M_RST6: - case M_RST7: - case M_TEM: - TRACEMS1(cinfo, 1, JTRC_PARMLESS_MARKER, cinfo->unread_marker); - break; - - case M_DNL: /* Ignore DNL ... perhaps the wrong thing */ - if (! skip_variable(cinfo)) - return JPEG_SUSPENDED; - break; - - default: /* must be DHP, EXP, JPGn, or RESn */ - /* For now, we treat the reserved markers as fatal errors since they are - * likely to be used to signal incompatible JPEG Part 3 extensions. - * Once the JPEG 3 version-number marker is well defined, this code - * ought to change! - */ - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker); - break; - } - /* Successfully processed marker, so reset state variable */ - cinfo->unread_marker = 0; - } /* end loop */ -} - - -/* - * Read a restart marker, which is expected to appear next in the datastream; - * if the marker is not there, take appropriate recovery action. - * Returns FALSE if suspension is required. - * - * This is called by the entropy decoder after it has read an appropriate - * number of MCUs. cinfo->unread_marker may be nonzero if the entropy decoder - * has already read a marker from the data source. Under normal conditions - * cinfo->unread_marker will be reset to 0 before returning; if not reset, - * it holds a marker which the decoder will be unable to read past. - */ - -METHODDEF boolean -read_restart_marker (j_decompress_ptr cinfo) -{ - /* Obtain a marker unless we already did. */ - /* Note that next_marker will complain if it skips any data. */ - if (cinfo->unread_marker == 0) { - if (! next_marker(cinfo)) - return FALSE; - } - - if (cinfo->unread_marker == - ((int) M_RST0 + cinfo->marker->next_restart_num)) { - /* Normal case --- swallow the marker and let entropy decoder continue */ - TRACEMS1(cinfo, 2, JTRC_RST, cinfo->marker->next_restart_num); - cinfo->unread_marker = 0; - } else { - /* Uh-oh, the restart markers have been messed up. */ - /* Let the data source manager determine how to resync. */ - if (! (*cinfo->src->resync_to_restart) (cinfo, - cinfo->marker->next_restart_num)) - return FALSE; - } - - /* Update next-restart state */ - cinfo->marker->next_restart_num = (cinfo->marker->next_restart_num + 1) & 7; - - return TRUE; -} - - -/* - * This is the default resync_to_restart method for data source managers - * to use if they don't have any better approach. Some data source managers - * may be able to back up, or may have additional knowledge about the data - * which permits a more intelligent recovery strategy; such managers would - * presumably supply their own resync method. - * - * read_restart_marker calls resync_to_restart if it finds a marker other than - * the restart marker it was expecting. (This code is *not* used unless - * a nonzero restart interval has been declared.) cinfo->unread_marker is - * the marker code actually found (might be anything, except 0 or FF). - * The desired restart marker number (0..7) is passed as a parameter. - * This routine is supposed to apply whatever error recovery strategy seems - * appropriate in order to position the input stream to the next data segment. - * Note that cinfo->unread_marker is treated as a marker appearing before - * the current data-source input point; usually it should be reset to zero - * before returning. - * Returns FALSE if suspension is required. - * - * This implementation is substantially constrained by wanting to treat the - * input as a data stream; this means we can't back up. Therefore, we have - * only the following actions to work with: - * 1. Simply discard the marker and let the entropy decoder resume at next - * byte of file. - * 2. Read forward until we find another marker, discarding intervening - * data. (In theory we could look ahead within the current bufferload, - * without having to discard data if we don't find the desired marker. - * This idea is not implemented here, in part because it makes behavior - * dependent on buffer size and chance buffer-boundary positions.) - * 3. Leave the marker unread (by failing to zero cinfo->unread_marker). - * This will cause the entropy decoder to process an empty data segment, - * inserting dummy zeroes, and then we will reprocess the marker. - * - * #2 is appropriate if we think the desired marker lies ahead, while #3 is - * appropriate if the found marker is a future restart marker (indicating - * that we have missed the desired restart marker, probably because it got - * corrupted). - * We apply #2 or #3 if the found marker is a restart marker no more than - * two counts behind or ahead of the expected one. We also apply #2 if the - * found marker is not a legal JPEG marker code (it's certainly bogus data). - * If the found marker is a restart marker more than 2 counts away, we do #1 - * (too much risk that the marker is erroneous; with luck we will be able to - * resync at some future point). - * For any valid non-restart JPEG marker, we apply #3. This keeps us from - * overrunning the end of a scan. An implementation limited to single-scan - * files might find it better to apply #2 for markers other than EOI, since - * any other marker would have to be bogus data in that case. - */ - -GLOBAL boolean -jpeg_resync_to_restart (j_decompress_ptr cinfo, int desired) -{ - int marker = cinfo->unread_marker; - int action = 1; - - /* Always put up a warning. */ - WARNMS2(cinfo, JWRN_MUST_RESYNC, marker, desired); - - /* Outer loop handles repeated decision after scanning forward. */ - for (;;) { - if (marker < (int) M_SOF0) - action = 2; /* invalid marker */ - else if (marker < (int) M_RST0 || marker > (int) M_RST7) - action = 3; /* valid non-restart marker */ - else { - if (marker == ((int) M_RST0 + ((desired+1) & 7)) || - marker == ((int) M_RST0 + ((desired+2) & 7))) - action = 3; /* one of the next two expected restarts */ - else if (marker == ((int) M_RST0 + ((desired-1) & 7)) || - marker == ((int) M_RST0 + ((desired-2) & 7))) - action = 2; /* a prior restart, so advance */ - else - action = 1; /* desired restart or too far away */ - } - TRACEMS2(cinfo, 4, JTRC_RECOVERY_ACTION, marker, action); - switch (action) { - case 1: - /* Discard marker and let entropy decoder resume processing. */ - cinfo->unread_marker = 0; - return TRUE; - case 2: - /* Scan to the next marker, and repeat the decision loop. */ - if (! next_marker(cinfo)) - return FALSE; - marker = cinfo->unread_marker; - break; - case 3: - /* Return without advancing past this marker. */ - /* Entropy decoder will be forced to process an empty segment. */ - return TRUE; - } - } /* end loop */ -} - - -/* - * Reset marker processing state to begin a fresh datastream. - */ - -METHODDEF void -reset_marker_reader (j_decompress_ptr cinfo) -{ - cinfo->comp_info = NULL; /* until allocated by get_sof */ - cinfo->input_scan_number = 0; /* no SOS seen yet */ - cinfo->unread_marker = 0; /* no pending marker */ - cinfo->marker->saw_SOI = FALSE; /* set internal state too */ - cinfo->marker->saw_SOF = FALSE; - cinfo->marker->discarded_bytes = 0; -} - - -/* - * Initialize the marker reader module. - * This is called only once, when the decompression object is created. - */ - -GLOBAL void -jinit_marker_reader (j_decompress_ptr cinfo) -{ - int i; - - /* Create subobject in permanent pool */ - cinfo->marker = (struct jpeg_marker_reader *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(struct jpeg_marker_reader)); - /* Initialize method pointers */ - cinfo->marker->reset_marker_reader = reset_marker_reader; - cinfo->marker->read_markers = read_markers; - cinfo->marker->read_restart_marker = read_restart_marker; - cinfo->marker->process_COM = skip_variable; - for (i = 0; i < 16; i++) - cinfo->marker->process_APPn[i] = skip_variable; - cinfo->marker->process_APPn[0] = get_app0; - cinfo->marker->process_APPn[14] = get_app14; - /* Reset marker processing state */ - reset_marker_reader(cinfo); -} diff --git a/libs/jpeg6/jdmaster.cpp b/libs/jpeg6/jdmaster.cpp deleted file mode 100644 index 9d88bb2f..00000000 --- a/libs/jpeg6/jdmaster.cpp +++ /dev/null @@ -1,558 +0,0 @@ -/* - * jdmaster.c - * - * Copyright (C) 1991-1995, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains master control logic for the JPEG decompressor. - * These routines are concerned with selecting the modules to be executed - * and with determining the number of passes and the work to be done in each - * pass. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "radiant_jpeglib.h" - - -/* Private state */ - -typedef struct { - struct jpeg_decomp_master pub; /* public fields */ - - int pass_number; /* # of passes completed */ - - boolean using_merged_upsample; /* TRUE if using merged upsample/cconvert */ - - /* Saved references to initialized quantizer modules, - * in case we need to switch modes. - */ - struct jpeg_color_quantizer * quantizer_1pass; - struct jpeg_color_quantizer * quantizer_2pass; -} my_decomp_master; - -typedef my_decomp_master * my_master_ptr; - - -/* - * Determine whether merged upsample/color conversion should be used. - * CRUCIAL: this must match the actual capabilities of jdmerge.c! - */ - -LOCAL boolean -use_merged_upsample (j_decompress_ptr cinfo) -{ -#ifdef UPSAMPLE_MERGING_SUPPORTED - /* Merging is the equivalent of plain box-filter upsampling */ - if (cinfo->do_fancy_upsampling || cinfo->CCIR601_sampling) - return FALSE; - /* jdmerge.c only supports YCC=>RGB color conversion */ - if (cinfo->jpeg_color_space != JCS_YCbCr || cinfo->num_components != 3 || - cinfo->out_color_space != JCS_RGB || - cinfo->out_color_components != RGB_PIXELSIZE) - return FALSE; - /* and it only handles 2h1v or 2h2v sampling ratios */ - if (cinfo->comp_info[0].h_samp_factor != 2 || - cinfo->comp_info[1].h_samp_factor != 1 || - cinfo->comp_info[2].h_samp_factor != 1 || - cinfo->comp_info[0].v_samp_factor > 2 || - cinfo->comp_info[1].v_samp_factor != 1 || - cinfo->comp_info[2].v_samp_factor != 1) - return FALSE; - /* furthermore, it doesn't work if we've scaled the IDCTs differently */ - if (cinfo->comp_info[0].DCT_scaled_size != cinfo->min_DCT_scaled_size || - cinfo->comp_info[1].DCT_scaled_size != cinfo->min_DCT_scaled_size || - cinfo->comp_info[2].DCT_scaled_size != cinfo->min_DCT_scaled_size) - return FALSE; - /* ??? also need to test for upsample-time rescaling, when & if supported */ - return TRUE; /* by golly, it'll work... */ -#else - return FALSE; -#endif -} - - -/* - * Compute output image dimensions and related values. - * NOTE: this is exported for possible use by application. - * Hence it mustn't do anything that can't be done twice. - * Also note that it may be called before the master module is initialized! - */ - -GLOBAL void -jpeg_calc_output_dimensions (j_decompress_ptr cinfo) -/* Do computations that are needed before master selection phase */ -{ -#if 0 // JDC: commented out to remove warning - int ci; - jpeg_component_info *compptr; -#endif - - /* Prevent application from calling me at wrong times */ - if (cinfo->global_state != DSTATE_READY) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - -#ifdef IDCT_SCALING_SUPPORTED - - /* Compute actual output image dimensions and DCT scaling choices. */ - if (cinfo->scale_num * 8 <= cinfo->scale_denom) { - /* Provide 1/8 scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width, 8L); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, 8L); - cinfo->min_DCT_scaled_size = 1; - } else if (cinfo->scale_num * 4 <= cinfo->scale_denom) { - /* Provide 1/4 scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width, 4L); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, 4L); - cinfo->min_DCT_scaled_size = 2; - } else if (cinfo->scale_num * 2 <= cinfo->scale_denom) { - /* Provide 1/2 scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width, 2L); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, 2L); - cinfo->min_DCT_scaled_size = 4; - } else { - /* Provide 1/1 scaling */ - cinfo->output_width = cinfo->image_width; - cinfo->output_height = cinfo->image_height; - cinfo->min_DCT_scaled_size = DCTSIZE; - } - /* In selecting the actual DCT scaling for each component, we try to - * scale up the chroma components via IDCT scaling rather than upsampling. - * This saves time if the upsampler gets to use 1:1 scaling. - * Note this code assumes that the supported DCT scalings are powers of 2. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - int ssize = cinfo->min_DCT_scaled_size; - while (ssize < DCTSIZE && - (compptr->h_samp_factor * ssize * 2 <= - cinfo->max_h_samp_factor * cinfo->min_DCT_scaled_size) && - (compptr->v_samp_factor * ssize * 2 <= - cinfo->max_v_samp_factor * cinfo->min_DCT_scaled_size)) { - ssize = ssize * 2; - } - compptr->DCT_scaled_size = ssize; - } - - /* Recompute downsampled dimensions of components; - * application needs to know these if using raw downsampled data. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Size in samples, after IDCT scaling */ - compptr->downsampled_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * - (long) (compptr->h_samp_factor * compptr->DCT_scaled_size), - (long) (cinfo->max_h_samp_factor * DCTSIZE)); - compptr->downsampled_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * - (long) (compptr->v_samp_factor * compptr->DCT_scaled_size), - (long) (cinfo->max_v_samp_factor * DCTSIZE)); - } - -#else /* !IDCT_SCALING_SUPPORTED */ - - /* Hardwire it to "no scaling" */ - cinfo->output_width = cinfo->image_width; - cinfo->output_height = cinfo->image_height; - /* jdinput.c has already initialized DCT_scaled_size to DCTSIZE, - * and has computed unscaled downsampled_width and downsampled_height. - */ - -#endif /* IDCT_SCALING_SUPPORTED */ - - /* Report number of components in selected colorspace. */ - /* Probably this should be in the color conversion module... */ - switch (cinfo->out_color_space) { - case JCS_GRAYSCALE: - cinfo->out_color_components = 1; - break; - case JCS_RGB: -#if RGB_PIXELSIZE != 3 - cinfo->out_color_components = RGB_PIXELSIZE; - break; -#endif /* else share code with YCbCr */ - case JCS_YCbCr: - cinfo->out_color_components = 3; - break; - case JCS_CMYK: - case JCS_YCCK: - cinfo->out_color_components = 4; - break; - default: /* else must be same colorspace as in file */ - cinfo->out_color_components = cinfo->num_components; - break; - } - cinfo->output_components = (cinfo->quantize_colors ? 1 : - cinfo->out_color_components); - - /* See if upsampler will want to emit more than one row at a time */ - if (use_merged_upsample(cinfo)) - cinfo->rec_outbuf_height = cinfo->max_v_samp_factor; - else - cinfo->rec_outbuf_height = 1; -} - - -/* - * Several decompression processes need to range-limit values to the range - * 0..MAXJSAMPLE; the input value may fall somewhat outside this range - * due to noise introduced by quantization, roundoff error, etc. These - * processes are inner loops and need to be as fast as possible. On most - * machines, particularly CPUs with pipelines or instruction prefetch, - * a (subscript-check-less) C table lookup - * x = sample_range_limit[x]; - * is faster than explicit tests - * if (x < 0) x = 0; - * else if (x > MAXJSAMPLE) x = MAXJSAMPLE; - * These processes all use a common table prepared by the routine below. - * - * For most steps we can mathematically guarantee that the initial value - * of x is within MAXJSAMPLE+1 of the legal range, so a table running from - * -(MAXJSAMPLE+1) to 2*MAXJSAMPLE+1 is sufficient. But for the initial - * limiting step (just after the IDCT), a wildly out-of-range value is - * possible if the input data is corrupt. To avoid any chance of indexing - * off the end of memory and getting a bad-pointer trap, we perform the - * post-IDCT limiting thus: - * x = range_limit[x & MASK]; - * where MASK is 2 bits wider than legal sample data, ie 10 bits for 8-bit - * samples. Under normal circumstances this is more than enough range and - * a correct output will be generated; with bogus input data the mask will - * cause wraparound, and we will safely generate a bogus-but-in-range output. - * For the post-IDCT step, we want to convert the data from signed to unsigned - * representation by adding CENTERJSAMPLE at the same time that we limit it. - * So the post-IDCT limiting table ends up looking like this: - * CENTERJSAMPLE,CENTERJSAMPLE+1,...,MAXJSAMPLE, - * MAXJSAMPLE (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), - * 0 (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), - * 0,1,...,CENTERJSAMPLE-1 - * Negative inputs select values from the upper half of the table after - * masking. - * - * We can save some space by overlapping the start of the post-IDCT table - * with the simpler range limiting table. The post-IDCT table begins at - * sample_range_limit + CENTERJSAMPLE. - * - * Note that the table is allocated in near data space on PCs; it's small - * enough and used often enough to justify this. - */ - -LOCAL void -prepare_range_limit_table (j_decompress_ptr cinfo) -/* Allocate and fill in the sample_range_limit table */ -{ - JSAMPLE * table; - int i; - - table = (JSAMPLE *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (5 * (MAXJSAMPLE+1) + CENTERJSAMPLE) * SIZEOF(JSAMPLE)); - table += (MAXJSAMPLE+1); /* allow negative subscripts of simple table */ - cinfo->sample_range_limit = table; - /* First segment of "simple" table: limit[x] = 0 for x < 0 */ - MEMZERO(table - (MAXJSAMPLE+1), (MAXJSAMPLE+1) * SIZEOF(JSAMPLE)); - /* Main part of "simple" table: limit[x] = x */ - for (i = 0; i <= MAXJSAMPLE; i++) - table[i] = (JSAMPLE) i; - table += CENTERJSAMPLE; /* Point to where post-IDCT table starts */ - /* End of simple table, rest of first half of post-IDCT table */ - for (i = CENTERJSAMPLE; i < 2*(MAXJSAMPLE+1); i++) - table[i] = MAXJSAMPLE; - /* Second half of post-IDCT table */ - MEMZERO(table + (2 * (MAXJSAMPLE+1)), - (2 * (MAXJSAMPLE+1) - CENTERJSAMPLE) * SIZEOF(JSAMPLE)); - MEMCOPY(table + (4 * (MAXJSAMPLE+1) - CENTERJSAMPLE), - cinfo->sample_range_limit, CENTERJSAMPLE * SIZEOF(JSAMPLE)); -} - - -/* - * Master selection of decompression modules. - * This is done once at jpeg_start_decompress time. We determine - * which modules will be used and give them appropriate initialization calls. - * We also initialize the decompressor input side to begin consuming data. - * - * Since jpeg_read_header has finished, we know what is in the SOF - * and (first) SOS markers. We also have all the application parameter - * settings. - */ - -LOCAL void -master_selection (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - boolean use_c_buffer; - long samplesperrow; - JDIMENSION jd_samplesperrow; - - /* Initialize dimensions and other stuff */ - jpeg_calc_output_dimensions(cinfo); - prepare_range_limit_table(cinfo); - - /* Width of an output scanline must be representable as JDIMENSION. */ - samplesperrow = (long) cinfo->output_width * (long) cinfo->out_color_components; - jd_samplesperrow = (JDIMENSION) samplesperrow; - if ((long) jd_samplesperrow != samplesperrow) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - - /* Initialize my private state */ - master->pass_number = 0; - master->using_merged_upsample = use_merged_upsample(cinfo); - - /* Color quantizer selection */ - master->quantizer_1pass = NULL; - master->quantizer_2pass = NULL; - /* No mode changes if not using buffered-image mode. */ - if (! cinfo->quantize_colors || ! cinfo->buffered_image) { - cinfo->enable_1pass_quant = FALSE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; - } - if (cinfo->quantize_colors) { - if (cinfo->raw_data_out) - ERREXIT(cinfo, JERR_NOTIMPL); - /* 2-pass quantizer only works in 3-component color space. */ - if (cinfo->out_color_components != 3) { - cinfo->enable_1pass_quant = TRUE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; - cinfo->colormap = NULL; - } else if (cinfo->colormap != NULL) { - cinfo->enable_external_quant = TRUE; - } else if (cinfo->two_pass_quantize) { - cinfo->enable_2pass_quant = TRUE; - } else { - cinfo->enable_1pass_quant = TRUE; - } - - if (cinfo->enable_1pass_quant) { -#ifdef QUANT_1PASS_SUPPORTED - jinit_1pass_quantizer(cinfo); - master->quantizer_1pass = cinfo->cquantize; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - - /* We use the 2-pass code to map to external colormaps. */ - if (cinfo->enable_2pass_quant || cinfo->enable_external_quant) { -#ifdef QUANT_2PASS_SUPPORTED - jinit_2pass_quantizer(cinfo); - master->quantizer_2pass = cinfo->cquantize; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - /* If both quantizers are initialized, the 2-pass one is left active; - * this is necessary for starting with quantization to an external map. - */ - } - - /* Post-processing: in particular, color conversion first */ - if (! cinfo->raw_data_out) { - if (master->using_merged_upsample) { -#ifdef UPSAMPLE_MERGING_SUPPORTED - jinit_merged_upsampler(cinfo); /* does color conversion too */ -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - jinit_color_deconverter(cinfo); - jinit_upsampler(cinfo); - } - jinit_d_post_controller(cinfo, cinfo->enable_2pass_quant); - } - /* Inverse DCT */ - jinit_inverse_dct(cinfo); - /* Entropy decoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) { - ERREXIT(cinfo, JERR_ARITH_NOTIMPL); - } else { - if (cinfo->progressive_mode) { -#ifdef D_PROGRESSIVE_SUPPORTED - jinit_phuff_decoder(cinfo); -#else - ERREXIT(cinfo, JERR_NO_PROGRESSIVE); -#endif - } else - jinit_huff_decoder(cinfo); - } - - /* Initialize principal buffer controllers. */ - use_c_buffer = cinfo->inputctl->has_multiple_scans || cinfo->buffered_image; - jinit_d_coef_controller(cinfo, use_c_buffer); - - if (! cinfo->raw_data_out) - jinit_d_main_controller(cinfo, FALSE /* never need full buffer here */); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Initialize input side of decompressor to consume first scan. */ - (*cinfo->inputctl->start_input_pass) (cinfo); - -#ifdef D_MULTISCAN_FILES_SUPPORTED - /* If jpeg_start_decompress will read the whole file, initialize - * progress monitoring appropriately. The input step is counted - * as one pass. - */ - if (cinfo->progress != NULL && ! cinfo->buffered_image && - cinfo->inputctl->has_multiple_scans) { - int nscans; - /* Estimate number of scans to set pass_limit. */ - if (cinfo->progressive_mode) { - /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ - nscans = 2 + 3 * cinfo->num_components; - } else { - /* For a nonprogressive multiscan file, estimate 1 scan per component. */ - nscans = cinfo->num_components; - } - cinfo->progress->pass_counter = 0L; - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; - cinfo->progress->completed_passes = 0; - cinfo->progress->total_passes = (cinfo->enable_2pass_quant ? 3 : 2); - /* Count the input pass as done */ - master->pass_number++; - } -#endif /* D_MULTISCAN_FILES_SUPPORTED */ -} - - -/* - * Per-pass setup. - * This is called at the beginning of each output pass. We determine which - * modules will be active during this pass and give them appropriate - * start_pass calls. We also set is_dummy_pass to indicate whether this - * is a "real" output pass or a dummy pass for color quantization. - * (In the latter case, jdapi.c will crank the pass to completion.) - */ - -METHODDEF void -prepare_for_output_pass (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - if (master->pub.is_dummy_pass) { -#ifdef QUANT_2PASS_SUPPORTED - /* Final pass of 2-pass quantization */ - master->pub.is_dummy_pass = FALSE; - (*cinfo->cquantize->start_pass) (cinfo, FALSE); - (*cinfo->post->start_pass) (cinfo, JBUF_CRANK_DEST); - (*cinfo->main->start_pass) (cinfo, JBUF_CRANK_DEST); -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif /* QUANT_2PASS_SUPPORTED */ - } else { - if (cinfo->quantize_colors && cinfo->colormap == NULL) { - /* Select new quantization method */ - if (cinfo->two_pass_quantize && cinfo->enable_2pass_quant) { - cinfo->cquantize = master->quantizer_2pass; - master->pub.is_dummy_pass = TRUE; - } else if (cinfo->enable_1pass_quant) { - cinfo->cquantize = master->quantizer_1pass; - } else { - ERREXIT(cinfo, JERR_MODE_CHANGE); - } - } - (*cinfo->idct->start_pass) (cinfo); - (*cinfo->coef->start_output_pass) (cinfo); - if (! cinfo->raw_data_out) { - if (! master->using_merged_upsample) - (*cinfo->cconvert->start_pass) (cinfo); - (*cinfo->upsample->start_pass) (cinfo); - if (cinfo->quantize_colors) - (*cinfo->cquantize->start_pass) (cinfo, master->pub.is_dummy_pass); - (*cinfo->post->start_pass) (cinfo, - (master->pub.is_dummy_pass ? JBUF_SAVE_AND_PASS : JBUF_PASS_THRU)); - (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); - } - } - - /* Set up progress monitor's pass info if present */ - if (cinfo->progress != NULL) { - cinfo->progress->completed_passes = master->pass_number; - cinfo->progress->total_passes = master->pass_number + - (master->pub.is_dummy_pass ? 2 : 1); - /* In buffered-image mode, we assume one more output pass if EOI not - * yet reached, but no more passes if EOI has been reached. - */ - if (cinfo->buffered_image && ! cinfo->inputctl->eoi_reached) { - cinfo->progress->total_passes += (cinfo->enable_2pass_quant ? 2 : 1); - } - } -} - - -/* - * Finish up at end of an output pass. - */ - -METHODDEF void -finish_output_pass (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - if (cinfo->quantize_colors) - (*cinfo->cquantize->finish_pass) (cinfo); - master->pass_number++; -} - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -/* - * Switch to a new external colormap between output passes. - */ - -GLOBAL void -jpeg_new_colormap (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - /* Prevent application from calling me at wrong times */ - if (cinfo->global_state != DSTATE_BUFIMAGE) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (cinfo->quantize_colors && cinfo->enable_external_quant && - cinfo->colormap != NULL) { - /* Select 2-pass quantizer for external colormap use */ - cinfo->cquantize = master->quantizer_2pass; - /* Notify quantizer of colormap change */ - (*cinfo->cquantize->new_color_map) (cinfo); - master->pub.is_dummy_pass = FALSE; /* just in case */ - } else - ERREXIT(cinfo, JERR_MODE_CHANGE); -} - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - - -/* - * Initialize master decompression control and select active modules. - * This is performed at the start of jpeg_start_decompress. - */ - -GLOBAL void -jinit_master_decompress (j_decompress_ptr cinfo) -{ - my_master_ptr master; - - master = (my_master_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_decomp_master)); - cinfo->master = (struct jpeg_decomp_master *) master; - master->pub.prepare_for_output_pass = prepare_for_output_pass; - master->pub.finish_output_pass = finish_output_pass; - - master->pub.is_dummy_pass = FALSE; - - master_selection(cinfo); -} - diff --git a/libs/jpeg6/jdpostct.cpp b/libs/jpeg6/jdpostct.cpp deleted file mode 100644 index 3aba0a38..00000000 --- a/libs/jpeg6/jdpostct.cpp +++ /dev/null @@ -1,580 +0,0 @@ -/* - - * jdpostct.c - - * - - * Copyright (C) 1994-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains the decompression postprocessing controller. - - * This controller manages the upsampling, color conversion, and color - - * quantization/reduction steps; specifically, it controls the buffering - - * between upsample/color conversion and color quantization/reduction. - - * - - * If no color quantization/reduction is required, then this module has no - - * work to do, and it just hands off to the upsample/color conversion code. - - * An integrated upsample/convert/quantize process would replace this module - - * entirely. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* Private buffer controller object */ - - - -typedef struct { - - struct jpeg_d_post_controller pub; /* public fields */ - - - - /* Color quantization source buffer: this holds output data from - - * the upsample/color conversion step to be passed to the quantizer. - - * For two-pass color quantization, we need a full-image buffer; - - * for one-pass operation, a strip buffer is sufficient. - - */ - - jvirt_sarray_ptr whole_image; /* virtual array, or NULL if one-pass */ - - JSAMPARRAY buffer; /* strip buffer, or current strip of virtual */ - - JDIMENSION strip_height; /* buffer size in rows */ - - /* for two-pass mode only: */ - - JDIMENSION starting_row; /* row # of first row in current strip */ - - JDIMENSION next_row; /* index of next row to fill/empty in strip */ - -} my_post_controller; - - - -typedef my_post_controller * my_post_ptr; - - - - - -/* Forward declarations */ - -METHODDEF void post_process_1pass - - JPP((j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail)); - -#ifdef QUANT_2PASS_SUPPORTED - -METHODDEF void post_process_prepass - - JPP((j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail)); - -METHODDEF void post_process_2pass - - JPP((j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail)); - -#endif - - - - - -/* - - * Initialize for a processing pass. - - */ - - - -METHODDEF void - -start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) - -{ - - my_post_ptr post = (my_post_ptr) cinfo->post; - - - - switch (pass_mode) { - - case JBUF_PASS_THRU: - - if (cinfo->quantize_colors) { - - /* Single-pass processing with color quantization. */ - - post->pub.post_process_data = post_process_1pass; - - /* We could be doing buffered-image output before starting a 2-pass - - * color quantization; in that case, jinit_d_post_controller did not - - * allocate a strip buffer. Use the virtual-array buffer as workspace. - - */ - - if (post->buffer == NULL) { - - post->buffer = (*cinfo->mem->access_virt_sarray) - - ((j_common_ptr) cinfo, post->whole_image, - - (JDIMENSION) 0, post->strip_height, TRUE); - - } - - } else { - - /* For single-pass processing without color quantization, - - * I have no work to do; just call the upsampler directly. - - */ - - post->pub.post_process_data = cinfo->upsample->upsample; - - } - - break; - -#ifdef QUANT_2PASS_SUPPORTED - - case JBUF_SAVE_AND_PASS: - - /* First pass of 2-pass quantization */ - - if (post->whole_image == NULL) - - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - post->pub.post_process_data = post_process_prepass; - - break; - - case JBUF_CRANK_DEST: - - /* Second pass of 2-pass quantization */ - - if (post->whole_image == NULL) - - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - post->pub.post_process_data = post_process_2pass; - - break; - -#endif /* QUANT_2PASS_SUPPORTED */ - - default: - - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - break; - - } - - post->starting_row = post->next_row = 0; - -} - - - - - -/* - - * Process some data in the one-pass (strip buffer) case. - - * This is used for color precision reduction as well as one-pass quantization. - - */ - - - -METHODDEF void - -post_process_1pass (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail) - -{ - - my_post_ptr post = (my_post_ptr) cinfo->post; - - JDIMENSION num_rows, max_rows; - - - - /* Fill the buffer, but not more than what we can dump out in one go. */ - - /* Note we rely on the upsampler to detect bottom of image. */ - - max_rows = out_rows_avail - *out_row_ctr; - - if (max_rows > post->strip_height) - - max_rows = post->strip_height; - - num_rows = 0; - - (*cinfo->upsample->upsample) (cinfo, - - input_buf, in_row_group_ctr, in_row_groups_avail, - - post->buffer, &num_rows, max_rows); - - /* Quantize and emit data. */ - - (*cinfo->cquantize->color_quantize) (cinfo, - - post->buffer, output_buf + *out_row_ctr, (int) num_rows); - - *out_row_ctr += num_rows; - -} - - - - - -#ifdef QUANT_2PASS_SUPPORTED - - - -/* - - * Process some data in the first pass of 2-pass quantization. - - */ - - - -METHODDEF void - -post_process_prepass (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail) - -{ - - my_post_ptr post = (my_post_ptr) cinfo->post; - - JDIMENSION old_next_row, num_rows; - - - - /* Reposition virtual buffer if at start of strip. */ - - if (post->next_row == 0) { - - post->buffer = (*cinfo->mem->access_virt_sarray) - - ((j_common_ptr) cinfo, post->whole_image, - - post->starting_row, post->strip_height, TRUE); - - } - - - - /* Upsample some data (up to a strip height's worth). */ - - old_next_row = post->next_row; - - (*cinfo->upsample->upsample) (cinfo, - - input_buf, in_row_group_ctr, in_row_groups_avail, - - post->buffer, &post->next_row, post->strip_height); - - - - /* Allow quantizer to scan new data. No data is emitted, */ - - /* but we advance out_row_ctr so outer loop can tell when we're done. */ - - if (post->next_row > old_next_row) { - - num_rows = post->next_row - old_next_row; - - (*cinfo->cquantize->color_quantize) (cinfo, post->buffer + old_next_row, - - (JSAMPARRAY) NULL, (int) num_rows); - - *out_row_ctr += num_rows; - - } - - - - /* Advance if we filled the strip. */ - - if (post->next_row >= post->strip_height) { - - post->starting_row += post->strip_height; - - post->next_row = 0; - - } - -} - - - - - -/* - - * Process some data in the second pass of 2-pass quantization. - - */ - - - -METHODDEF void - -post_process_2pass (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail) - -{ - - my_post_ptr post = (my_post_ptr) cinfo->post; - - JDIMENSION num_rows, max_rows; - - - - /* Reposition virtual buffer if at start of strip. */ - - if (post->next_row == 0) { - - post->buffer = (*cinfo->mem->access_virt_sarray) - - ((j_common_ptr) cinfo, post->whole_image, - - post->starting_row, post->strip_height, FALSE); - - } - - - - /* Determine number of rows to emit. */ - - num_rows = post->strip_height - post->next_row; /* available in strip */ - - max_rows = out_rows_avail - *out_row_ctr; /* available in output area */ - - if (num_rows > max_rows) - - num_rows = max_rows; - - /* We have to check bottom of image here, can't depend on upsampler. */ - - max_rows = cinfo->output_height - post->starting_row; - - if (num_rows > max_rows) - - num_rows = max_rows; - - - - /* Quantize and emit data. */ - - (*cinfo->cquantize->color_quantize) (cinfo, - - post->buffer + post->next_row, output_buf + *out_row_ctr, - - (int) num_rows); - - *out_row_ctr += num_rows; - - - - /* Advance if we filled the strip. */ - - post->next_row += num_rows; - - if (post->next_row >= post->strip_height) { - - post->starting_row += post->strip_height; - - post->next_row = 0; - - } - -} - - - -#endif /* QUANT_2PASS_SUPPORTED */ - - - - - -/* - - * Initialize postprocessing controller. - - */ - - - -GLOBAL void - -jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer) - -{ - - my_post_ptr post; - - - - post = (my_post_ptr) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(my_post_controller)); - - cinfo->post = (struct jpeg_d_post_controller *) post; - - post->pub.start_pass = start_pass_dpost; - - post->whole_image = NULL; /* flag for no virtual arrays */ - - post->buffer = NULL; /* flag for no strip buffer */ - - - - /* Create the quantization buffer, if needed */ - - if (cinfo->quantize_colors) { - - /* The buffer strip height is max_v_samp_factor, which is typically - - * an efficient number of rows for upsampling to return. - - * (In the presence of output rescaling, we might want to be smarter?) - - */ - - post->strip_height = (JDIMENSION) cinfo->max_v_samp_factor; - - if (need_full_buffer) { - - /* Two-pass color quantization: need full-image storage. */ - - /* We round up the number of rows to a multiple of the strip height. */ - -#ifdef QUANT_2PASS_SUPPORTED - - post->whole_image = (*cinfo->mem->request_virt_sarray) - - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - - cinfo->output_width * cinfo->out_color_components, - - (JDIMENSION) jround_up((long) cinfo->output_height, - - (long) post->strip_height), - - post->strip_height); - -#else - - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - -#endif /* QUANT_2PASS_SUPPORTED */ - - } else { - - /* One-pass color quantization: just make a strip buffer. */ - - post->buffer = (*cinfo->mem->alloc_sarray) - - ((j_common_ptr) cinfo, JPOOL_IMAGE, - - cinfo->output_width * cinfo->out_color_components, - - post->strip_height); - - } - - } - -} - diff --git a/libs/jpeg6/jdsample.cpp b/libs/jpeg6/jdsample.cpp deleted file mode 100644 index a15e252c..00000000 --- a/libs/jpeg6/jdsample.cpp +++ /dev/null @@ -1,956 +0,0 @@ -/* - - * jdsample.c - - * - - * Copyright (C) 1991-1994, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains upsampling routines. - - * - - * Upsampling input data is counted in "row groups". A row group - - * is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size) - - * sample rows of each component. Upsampling will normally produce - - * max_v_samp_factor pixel rows from each row group (but this could vary - - * if the upsampler is applying a scale factor of its own). - - * - - * An excellent reference for image resampling is - - * Digital Image Warping, George Wolberg, 1990. - - * Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* Pointer to routine to upsample a single component */ - -typedef JMETHOD(void, upsample1_ptr, - - (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)); - - - -/* Private subobject */ - - - -typedef struct { - - struct jpeg_upsampler pub; /* public fields */ - - - - /* Color conversion buffer. When using separate upsampling and color - - * conversion steps, this buffer holds one upsampled row group until it - - * has been color converted and output. - - * Note: we do not allocate any storage for component(s) which are full-size, - - * ie do not need rescaling. The corresponding entry of color_buf[] is - - * simply set to point to the input data array, thereby avoiding copying. - - */ - - JSAMPARRAY color_buf[MAX_COMPONENTS]; - - - - /* Per-component upsampling method pointers */ - - upsample1_ptr methods[MAX_COMPONENTS]; - - - - int next_row_out; /* counts rows emitted from color_buf */ - - JDIMENSION rows_to_go; /* counts rows remaining in image */ - - - - /* Height of an input row group for each component. */ - - int rowgroup_height[MAX_COMPONENTS]; - - - - /* These arrays save pixel expansion factors so that int_expand need not - - * recompute them each time. They are unused for other upsampling methods. - - */ - - UINT8 h_expand[MAX_COMPONENTS]; - - UINT8 v_expand[MAX_COMPONENTS]; - -} my_upsampler; - - - -typedef my_upsampler * my_upsample_ptr; - - - - - -/* - - * Initialize for an upsampling pass. - - */ - - - -METHODDEF void - -start_pass_upsample (j_decompress_ptr cinfo) - -{ - - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - - - /* Mark the conversion buffer empty */ - - upsample->next_row_out = cinfo->max_v_samp_factor; - - /* Initialize total-height counter for detecting bottom of image */ - - upsample->rows_to_go = cinfo->output_height; - -} - - - - - -/* - - * Control routine to do upsampling (and color conversion). - - * - - * In this version we upsample each component independently. - - * We upsample one row group into the conversion buffer, then apply - - * color conversion a row at a time. - - */ - - - -METHODDEF void - -sep_upsample (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail) - -{ - - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - int ci; - - jpeg_component_info * compptr; - - JDIMENSION num_rows; - - - - /* Fill the conversion buffer, if it's empty */ - - if (upsample->next_row_out >= cinfo->max_v_samp_factor) { - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* Invoke per-component upsample method. Notice we pass a POINTER - - * to color_buf[ci], so that fullsize_upsample can change it. - - */ - - (*upsample->methods[ci]) (cinfo, compptr, - - input_buf[ci] + (*in_row_group_ctr * upsample->rowgroup_height[ci]), - - upsample->color_buf + ci); - - } - - upsample->next_row_out = 0; - - } - - - - /* Color-convert and emit rows */ - - - - /* How many we have in the buffer: */ - - num_rows = (JDIMENSION) (cinfo->max_v_samp_factor - upsample->next_row_out); - - /* Not more than the distance to the end of the image. Need this test - - * in case the image height is not a multiple of max_v_samp_factor: - - */ - - if (num_rows > upsample->rows_to_go) - - num_rows = upsample->rows_to_go; - - /* And not more than what the client can accept: */ - - out_rows_avail -= *out_row_ctr; - - if (num_rows > out_rows_avail) - - num_rows = out_rows_avail; - - - - (*cinfo->cconvert->color_convert) (cinfo, upsample->color_buf, - - (JDIMENSION) upsample->next_row_out, - - output_buf + *out_row_ctr, - - (int) num_rows); - - - - /* Adjust counts */ - - *out_row_ctr += num_rows; - - upsample->rows_to_go -= num_rows; - - upsample->next_row_out += num_rows; - - /* When the buffer is emptied, declare this input row group consumed */ - - if (upsample->next_row_out >= cinfo->max_v_samp_factor) - - (*in_row_group_ctr)++; - -} - - - - - -/* - - * These are the routines invoked by sep_upsample to upsample pixel values - - * of a single component. One row group is processed per call. - - */ - - - - - -/* - - * For full-size components, we just make color_buf[ci] point at the - - * input buffer, and thus avoid copying any data. Note that this is - - * safe only because sep_upsample doesn't declare the input row group - - * "consumed" until we are done color converting and emitting it. - - */ - - - -METHODDEF void - -fullsize_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) - -{ - - *output_data_ptr = input_data; - -} - - - - - -/* - - * This is a no-op version used for "uninteresting" components. - - * These components will not be referenced by color conversion. - - */ - - - -METHODDEF void - -noop_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) - -{ - - *output_data_ptr = NULL; /* safety check */ - -} - - - - - -/* - - * This version handles any integral sampling ratios. - - * This is not used for typical JPEG files, so it need not be fast. - - * Nor, for that matter, is it particularly accurate: the algorithm is - - * simple replication of the input pixel onto the corresponding output - - * pixels. The hi-falutin sampling literature refers to this as a - - * "box filter". A box filter tends to introduce visible artifacts, - - * so if you are actually going to use 3:1 or 4:1 sampling ratios - - * you would be well advised to improve this code. - - */ - - - -METHODDEF void - -int_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) - -{ - - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - JSAMPARRAY output_data = *output_data_ptr; - - register JSAMPROW inptr, outptr; - - register JSAMPLE invalue; - - register int h; - - JSAMPROW outend; - - int h_expand, v_expand; - - int inrow, outrow; - - - - h_expand = upsample->h_expand[compptr->component_index]; - - v_expand = upsample->v_expand[compptr->component_index]; - - - - inrow = outrow = 0; - - while (outrow < cinfo->max_v_samp_factor) { - - /* Generate one output row with proper horizontal expansion */ - - inptr = input_data[inrow]; - - outptr = output_data[outrow]; - - outend = outptr + cinfo->output_width; - - while (outptr < outend) { - - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - - for (h = h_expand; h > 0; h--) { - - *outptr++ = invalue; - - } - - } - - /* Generate any additional output rows by duplicating the first one */ - - if (v_expand > 1) { - - jcopy_sample_rows(output_data, outrow, output_data, outrow+1, - - v_expand-1, cinfo->output_width); - - } - - inrow++; - - outrow += v_expand; - - } - -} - - - - - -/* - - * Fast processing for the common case of 2:1 horizontal and 1:1 vertical. - - * It's still a box filter. - - */ - - - -METHODDEF void - -h2v1_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) - -{ - - JSAMPARRAY output_data = *output_data_ptr; - - register JSAMPROW inptr, outptr; - - register JSAMPLE invalue; - - JSAMPROW outend; - - int inrow; - - - - for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { - - inptr = input_data[inrow]; - - outptr = output_data[inrow]; - - outend = outptr + cinfo->output_width; - - while (outptr < outend) { - - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - - *outptr++ = invalue; - - *outptr++ = invalue; - - } - - } - -} - - - - - -/* - - * Fast processing for the common case of 2:1 horizontal and 2:1 vertical. - - * It's still a box filter. - - */ - - - -METHODDEF void - -h2v2_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) - -{ - - JSAMPARRAY output_data = *output_data_ptr; - - register JSAMPROW inptr, outptr; - - register JSAMPLE invalue; - - JSAMPROW outend; - - int inrow, outrow; - - - - inrow = outrow = 0; - - while (outrow < cinfo->max_v_samp_factor) { - - inptr = input_data[inrow]; - - outptr = output_data[outrow]; - - outend = outptr + cinfo->output_width; - - while (outptr < outend) { - - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - - *outptr++ = invalue; - - *outptr++ = invalue; - - } - - jcopy_sample_rows(output_data, outrow, output_data, outrow+1, - - 1, cinfo->output_width); - - inrow++; - - outrow += 2; - - } - -} - - - - - -/* - - * Fancy processing for the common case of 2:1 horizontal and 1:1 vertical. - - * - - * The upsampling algorithm is linear interpolation between pixel centers, - - * also known as a "triangle filter". This is a good compromise between - - * speed and visual quality. The centers of the output pixels are 1/4 and 3/4 - - * of the way between input pixel centers. - - * - - * A note about the "bias" calculations: when rounding fractional values to - - * integer, we do not want to always round 0.5 up to the next integer. - - * If we did that, we'd introduce a noticeable bias towards larger values. - - * Instead, this code is arranged so that 0.5 will be rounded up or down at - - * alternate pixel locations (a simple ordered dither pattern). - - */ - - - -METHODDEF void - -h2v1_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) - -{ - - JSAMPARRAY output_data = *output_data_ptr; - - register JSAMPROW inptr, outptr; - - register int invalue; - - register JDIMENSION colctr; - - int inrow; - - - - for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { - - inptr = input_data[inrow]; - - outptr = output_data[inrow]; - - /* Special case for first column */ - - invalue = GETJSAMPLE(*inptr++); - - *outptr++ = (JSAMPLE) invalue; - - *outptr++ = (JSAMPLE) ((invalue * 3 + GETJSAMPLE(*inptr) + 2) >> 2); - - - - for (colctr = compptr->downsampled_width - 2; colctr > 0; colctr--) { - - /* General case: 3/4 * nearer pixel + 1/4 * further pixel */ - - invalue = GETJSAMPLE(*inptr++) * 3; - - *outptr++ = (JSAMPLE) ((invalue + GETJSAMPLE(inptr[-2]) + 1) >> 2); - - *outptr++ = (JSAMPLE) ((invalue + GETJSAMPLE(*inptr) + 2) >> 2); - - } - - - - /* Special case for last column */ - - invalue = GETJSAMPLE(*inptr); - - *outptr++ = (JSAMPLE) ((invalue * 3 + GETJSAMPLE(inptr[-1]) + 1) >> 2); - - *outptr++ = (JSAMPLE) invalue; - - } - -} - - - - - -/* - - * Fancy processing for the common case of 2:1 horizontal and 2:1 vertical. - - * Again a triangle filter; see comments for h2v1 case, above. - - * - - * It is OK for us to reference the adjacent input rows because we demanded - - * context from the main buffer controller (see initialization code). - - */ - - - -METHODDEF void - -h2v2_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) - -{ - - JSAMPARRAY output_data = *output_data_ptr; - - register JSAMPROW inptr0, inptr1, outptr; - -#if BITS_IN_JSAMPLE == 8 - - register int thiscolsum, lastcolsum, nextcolsum; - -#else - - register INT32 thiscolsum, lastcolsum, nextcolsum; - -#endif - - register JDIMENSION colctr; - - int inrow, outrow, v; - - - - inrow = outrow = 0; - - while (outrow < cinfo->max_v_samp_factor) { - - for (v = 0; v < 2; v++) { - - /* inptr0 points to nearest input row, inptr1 points to next nearest */ - - inptr0 = input_data[inrow]; - - if (v == 0) /* next nearest is row above */ - - inptr1 = input_data[inrow-1]; - - else /* next nearest is row below */ - - inptr1 = input_data[inrow+1]; - - outptr = output_data[outrow++]; - - - - /* Special case for first column */ - - thiscolsum = GETJSAMPLE(*inptr0++) * 3 + GETJSAMPLE(*inptr1++); - - nextcolsum = GETJSAMPLE(*inptr0++) * 3 + GETJSAMPLE(*inptr1++); - - *outptr++ = (JSAMPLE) ((thiscolsum * 4 + 8) >> 4); - - *outptr++ = (JSAMPLE) ((thiscolsum * 3 + nextcolsum + 7) >> 4); - - lastcolsum = thiscolsum; thiscolsum = nextcolsum; - - - - for (colctr = compptr->downsampled_width - 2; colctr > 0; colctr--) { - - /* General case: 3/4 * nearer pixel + 1/4 * further pixel in each */ - - /* dimension, thus 9/16, 3/16, 3/16, 1/16 overall */ - - nextcolsum = GETJSAMPLE(*inptr0++) * 3 + GETJSAMPLE(*inptr1++); - - *outptr++ = (JSAMPLE) ((thiscolsum * 3 + lastcolsum + 8) >> 4); - - *outptr++ = (JSAMPLE) ((thiscolsum * 3 + nextcolsum + 7) >> 4); - - lastcolsum = thiscolsum; thiscolsum = nextcolsum; - - } - - - - /* Special case for last column */ - - *outptr++ = (JSAMPLE) ((thiscolsum * 3 + lastcolsum + 8) >> 4); - - *outptr++ = (JSAMPLE) ((thiscolsum * 4 + 7) >> 4); - - } - - inrow++; - - } - -} - - - - - -/* - - * Module initialization routine for upsampling. - - */ - - - -GLOBAL void - -jinit_upsampler (j_decompress_ptr cinfo) - -{ - - my_upsample_ptr upsample; - - int ci; - - jpeg_component_info * compptr; - - boolean need_buffer, do_fancy; - - int h_in_group, v_in_group, h_out_group, v_out_group; - - - - upsample = (my_upsample_ptr) - - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - - SIZEOF(my_upsampler)); - - cinfo->upsample = (struct jpeg_upsampler *) upsample; - - upsample->pub.start_pass = start_pass_upsample; - - upsample->pub.upsample = sep_upsample; - - upsample->pub.need_context_rows = FALSE; /* until we find out differently */ - - - - if (cinfo->CCIR601_sampling) /* this isn't supported */ - - ERREXIT(cinfo, JERR_CCIR601_NOTIMPL); - - - - /* jdmainct.c doesn't support context rows when min_DCT_scaled_size = 1, - - * so don't ask for it. - - */ - - do_fancy = cinfo->do_fancy_upsampling && cinfo->min_DCT_scaled_size > 1; - - - - /* Verify we can handle the sampling factors, select per-component methods, - - * and create storage as needed. - - */ - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - - ci++, compptr++) { - - /* Compute size of an "input group" after IDCT scaling. This many samples - - * are to be converted to max_h_samp_factor * max_v_samp_factor pixels. - - */ - - h_in_group = (compptr->h_samp_factor * compptr->DCT_scaled_size) / - - cinfo->min_DCT_scaled_size; - - v_in_group = (compptr->v_samp_factor * compptr->DCT_scaled_size) / - - cinfo->min_DCT_scaled_size; - - h_out_group = cinfo->max_h_samp_factor; - - v_out_group = cinfo->max_v_samp_factor; - - upsample->rowgroup_height[ci] = v_in_group; /* save for use later */ - - need_buffer = TRUE; - - if (! compptr->component_needed) { - - /* Don't bother to upsample an uninteresting component. */ - - upsample->methods[ci] = noop_upsample; - - need_buffer = FALSE; - - } else if (h_in_group == h_out_group && v_in_group == v_out_group) { - - /* Fullsize components can be processed without any work. */ - - upsample->methods[ci] = fullsize_upsample; - - need_buffer = FALSE; - - } else if (h_in_group * 2 == h_out_group && - - v_in_group == v_out_group) { - - /* Special cases for 2h1v upsampling */ - - if (do_fancy && compptr->downsampled_width > 2) - - upsample->methods[ci] = h2v1_fancy_upsample; - - else - - upsample->methods[ci] = h2v1_upsample; - - } else if (h_in_group * 2 == h_out_group && - - v_in_group * 2 == v_out_group) { - - /* Special cases for 2h2v upsampling */ - - if (do_fancy && compptr->downsampled_width > 2) { - - upsample->methods[ci] = h2v2_fancy_upsample; - - upsample->pub.need_context_rows = TRUE; - - } else - - upsample->methods[ci] = h2v2_upsample; - - } else if ((h_out_group % h_in_group) == 0 && - - (v_out_group % v_in_group) == 0) { - - /* Generic integral-factors upsampling method */ - - upsample->methods[ci] = int_upsample; - - upsample->h_expand[ci] = (UINT8) (h_out_group / h_in_group); - - upsample->v_expand[ci] = (UINT8) (v_out_group / v_in_group); - - } else - - ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL); - - if (need_buffer) { - - upsample->color_buf[ci] = (*cinfo->mem->alloc_sarray) - - ((j_common_ptr) cinfo, JPOOL_IMAGE, - - (JDIMENSION) jround_up((long) cinfo->output_width, - - (long) cinfo->max_h_samp_factor), - - (JDIMENSION) cinfo->max_v_samp_factor); - - } - - } - -} - diff --git a/libs/jpeg6/jdtrans.cpp b/libs/jpeg6/jdtrans.cpp deleted file mode 100644 index 70e67379..00000000 --- a/libs/jpeg6/jdtrans.cpp +++ /dev/null @@ -1,244 +0,0 @@ -/* - - * jdtrans.c - - * - - * Copyright (C) 1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains library routines for transcoding decompression, - - * that is, reading raw DCT coefficient arrays from an input JPEG file. - - * The routines in jdapimin.c will also be needed by a transcoder. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* Forward declarations */ - -LOCAL void transdecode_master_selection JPP((j_decompress_ptr cinfo)); - - - - - -/* - - * Read the coefficient arrays from a JPEG file. - - * jpeg_read_header must be completed before calling this. - - * - - * The entire image is read into a set of virtual coefficient-block arrays, - - * one per component. The return value is a pointer to the array of - - * virtual-array descriptors. These can be manipulated directly via the - - * JPEG memory manager, or handed off to jpeg_write_coefficients(). - - * To release the memory occupied by the virtual arrays, call - - * jpeg_finish_decompress() when done with the data. - - * - - * Returns NULL if suspended. This case need be checked only if - - * a suspending data source is used. - - */ - - - -GLOBAL jvirt_barray_ptr * - -jpeg_read_coefficients (j_decompress_ptr cinfo) - -{ - - if (cinfo->global_state == DSTATE_READY) { - - /* First call: initialize active modules */ - - transdecode_master_selection(cinfo); - - cinfo->global_state = DSTATE_RDCOEFS; - - } else if (cinfo->global_state != DSTATE_RDCOEFS) - - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Absorb whole file into the coef buffer */ - - for (;;) { - - int retcode; - - /* Call progress monitor hook if present */ - - if (cinfo->progress != NULL) - - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - - /* Absorb some more input */ - - retcode = (*cinfo->inputctl->consume_input) (cinfo); - - if (retcode == JPEG_SUSPENDED) - - return NULL; - - if (retcode == JPEG_REACHED_EOI) - - break; - - /* Advance progress counter if appropriate */ - - if (cinfo->progress != NULL && - - (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { - - if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { - - /* startup underestimated number of scans; ratchet up one scan */ - - cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; - - } - - } - - } - - /* Set state so that jpeg_finish_decompress does the right thing */ - - cinfo->global_state = DSTATE_STOPPING; - - return cinfo->coef->coef_arrays; - -} - - - - - -/* - - * Master selection of decompression modules for transcoding. - - * This substitutes for jdmaster.c's initialization of the full decompressor. - - */ - - - -LOCAL void - -transdecode_master_selection (j_decompress_ptr cinfo) - -{ - - /* Entropy decoding: either Huffman or arithmetic coding. */ - - if (cinfo->arith_code) { - - ERREXIT(cinfo, JERR_ARITH_NOTIMPL); - - } else { - - if (cinfo->progressive_mode) { - -#ifdef D_PROGRESSIVE_SUPPORTED - - jinit_phuff_decoder(cinfo); - -#else - - ERREXIT(cinfo, JERR_NOT_COMPILED); - -#endif - - } else - - jinit_huff_decoder(cinfo); - - } - - - - /* Always get a full-image coefficient buffer. */ - - jinit_d_coef_controller(cinfo, TRUE); - - - - /* We can now tell the memory manager to allocate virtual arrays. */ - - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - - - /* Initialize input side of decompressor to consume first scan. */ - - (*cinfo->inputctl->start_input_pass) (cinfo); - - - - /* Initialize progress monitoring. */ - - if (cinfo->progress != NULL) { - - int nscans; - - /* Estimate number of scans to set pass_limit. */ - - if (cinfo->progressive_mode) { - - /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ - - nscans = 2 + 3 * cinfo->num_components; - - } else if (cinfo->inputctl->has_multiple_scans) { - - /* For a nonprogressive multiscan file, estimate 1 scan per component. */ - - nscans = cinfo->num_components; - - } else { - - nscans = 1; - - } - - cinfo->progress->pass_counter = 0L; - - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; - - cinfo->progress->completed_passes = 0; - - cinfo->progress->total_passes = 1; - - } - -} - diff --git a/libs/jpeg6/jerror.cpp b/libs/jpeg6/jerror.cpp deleted file mode 100644 index e4f65f78..00000000 --- a/libs/jpeg6/jerror.cpp +++ /dev/null @@ -1,233 +0,0 @@ -/* - * jerror.c - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains simple error-reporting and trace-message routines. - * These are suitable for Unix-like systems and others where writing to - * stderr is the right thing to do. Many applications will want to replace - * some or all of these routines. - * - * These routines are used by both the compression and decompression code. - */ - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "radiant_jpeglib.h" -#include "jversion.h" -#include "jerror.h" - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif - - -/* - * Create the message string table. - * We do this from the master message list in jerror.h by re-reading - * jerror.h with a suitable definition for macro JMESSAGE. - * The message table is made an external symbol just in case any applications - * want to refer to it directly. - */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_std_message_table jMsgTable -#endif - -#define JMESSAGE(code,string) string , - -const char * const jpeg_std_message_table[] = { -#include "jerror.h" - NULL -}; - -// Rad additions, longjmp out of the LoadJPGBuff -GLOBAL jmp_buf rad_loadfailed; -GLOBAL char rad_errormsg[JMSG_LENGTH_MAX]; - -/* - * Error exit handler: must not return to caller. - * - * Applications may override this if they want to get control back after - * an error. Typically one would longjmp somewhere instead of exiting. - * The setjmp buffer can be made a private field within an expanded error - * handler object. Note that the info needed to generate an error message - * is stored in the error object, so you can generate the message now or - * later, at your convenience. - * You should make sure that the JPEG object is cleaned up (with jpeg_abort - * or jpeg_destroy) at some point. - */ - -METHODDEF void -error_exit (j_common_ptr cinfo) -{ -// char buffer[JMSG_LENGTH_MAX]; - - /* Create the message */ - (*cinfo->err->format_message) (cinfo,rad_errormsg); - - /* Let the memory manager delete any temp files before we die */ - jpeg_destroy(cinfo); - - longjmp( rad_loadfailed, -1 ); -} - - -/* - * Actual output of an error or trace message. - * Applications may override this method to send JPEG messages somewhere - * other than stderr. - */ - -METHODDEF void -output_message (j_common_ptr cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - - /* Create the message */ - (*cinfo->err->format_message) (cinfo, buffer); - - /* Send it to stderr, adding a newline */ - printf("%s\n", buffer); -} - - -/* - * Decide whether to emit a trace or warning message. - * msg_level is one of: - * -1: recoverable corrupt-data warning, may want to abort. - * 0: important advisory messages (always display to user). - * 1: first level of tracing detail. - * 2,3,...: successively more detailed tracing messages. - * An application might override this method if it wanted to abort on warnings - * or change the policy about which messages to display. - */ - -METHODDEF void -emit_message (j_common_ptr cinfo, int msg_level) -{ - struct jpeg_error_mgr * err = cinfo->err; - - if (msg_level < 0) { - /* It's a warning message. Since corrupt files may generate many warnings, - * the policy implemented here is to show only the first warning, - * unless trace_level >= 3. - */ - if (err->num_warnings == 0 || err->trace_level >= 3) - (*err->output_message) (cinfo); - /* Always count warnings in num_warnings. */ - err->num_warnings++; - } else { - /* It's a trace message. Show it if trace_level >= msg_level. */ - if (err->trace_level >= msg_level) - (*err->output_message) (cinfo); - } -} - - -/* - * Format a message string for the most recent JPEG error or message. - * The message is stored into buffer, which should be at least JMSG_LENGTH_MAX - * characters. Note that no '\n' character is added to the string. - * Few applications should need to override this method. - */ - -METHODDEF void -format_message (j_common_ptr cinfo, char * buffer) -{ - struct jpeg_error_mgr * err = cinfo->err; - int msg_code = err->msg_code; - const char * msgtext = NULL; - const char * msgptr; - char ch; - boolean isstring; - - /* Look up message string in proper table */ - if (msg_code > 0 && msg_code <= err->last_jpeg_message) { - msgtext = err->jpeg_message_table[msg_code]; - } else if (err->addon_message_table != NULL && - msg_code >= err->first_addon_message && - msg_code <= err->last_addon_message) { - msgtext = err->addon_message_table[msg_code - err->first_addon_message]; - } - - /* Defend against bogus message number */ - if (msgtext == NULL) { - err->msg_parm.i[0] = msg_code; - msgtext = err->jpeg_message_table[0]; - } - - /* Check for string parameter, as indicated by %s in the message text */ - isstring = FALSE; - msgptr = msgtext; - while ((ch = *msgptr++) != '\0') { - if (ch == '%') { - if (*msgptr == 's') isstring = TRUE; - break; - } - } - - /* Format the message into the passed buffer */ - if (isstring) - sprintf(buffer, msgtext, err->msg_parm.s); - else - sprintf(buffer, msgtext, - err->msg_parm.i[0], err->msg_parm.i[1], - err->msg_parm.i[2], err->msg_parm.i[3], - err->msg_parm.i[4], err->msg_parm.i[5], - err->msg_parm.i[6], err->msg_parm.i[7]); -} - - -/* - * Reset error state variables at start of a new image. - * This is called during compression startup to reset trace/error - * processing to default state, without losing any application-specific - * method pointers. An application might possibly want to override - * this method if it has additional error processing state. - */ - -METHODDEF void -reset_error_mgr (j_common_ptr cinfo) -{ - cinfo->err->num_warnings = 0; - /* trace_level is not reset since it is an application-supplied parameter */ - cinfo->err->msg_code = 0; /* may be useful as a flag for "no error" */ -} - - -/* - * Fill in the standard error-handling methods in a jpeg_error_mgr object. - * Typical call is: - * struct jpeg_compress_struct cinfo; - * struct jpeg_error_mgr err; - * - * cinfo.err = jpeg_std_error(&err); - * after which the application may override some of the methods. - */ - -GLOBAL struct jpeg_error_mgr * -jpeg_std_error (struct jpeg_error_mgr * err) -{ - err->error_exit = error_exit; - err->emit_message = emit_message; - err->output_message = output_message; - err->format_message = format_message; - err->reset_error_mgr = reset_error_mgr; - - err->trace_level = 0; /* default = no tracing */ - err->num_warnings = 0; /* no warnings emitted yet */ - err->msg_code = 0; /* may be useful as a flag for "no error" */ - - /* Initialize message table pointers */ - err->jpeg_message_table = jpeg_std_message_table; - err->last_jpeg_message = (int) JMSG_LASTMSGCODE - 1; - - err->addon_message_table = NULL; - err->first_addon_message = 0; /* for safety */ - err->last_addon_message = 0; - - return err; -} diff --git a/libs/jpeg6/jerror.h b/libs/jpeg6/jerror.h deleted file mode 100644 index d23dfb0c..00000000 --- a/libs/jpeg6/jerror.h +++ /dev/null @@ -1,278 +0,0 @@ -/* - * jerror.h - * - * Copyright (C) 1994-1995, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the error and message codes for the JPEG library. - * Edit this file to add new codes, or to translate the message strings to - * some other language. - * A set of error-reporting macros are defined too. Some applications using - * the JPEG library may wish to include this file to get the error codes - * and/or the macros. - */ - -/* - * To define the enum list of message codes, include this file without - * defining macro JMESSAGE. To create a message string table, include it - * again with a suitable JMESSAGE definition (see jerror.c for an example). - */ -#ifndef JMESSAGE -#ifndef JERROR_H -/* First time through, define the enum list */ -#define JMAKE_ENUM_LIST -#else -/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ -#define JMESSAGE(code,string) -#endif /* JERROR_H */ -#endif /* JMESSAGE */ - -#ifdef JMAKE_ENUM_LIST - -typedef enum { - -#define JMESSAGE(code,string) code , - -#endif /* JMAKE_ENUM_LIST */ - -JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */ - -/* For maintenance convenience, list is alphabetical by message code name */ -JMESSAGE(JERR_ARITH_NOTIMPL, - "Sorry, there are legal restrictions on arithmetic coding") -JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix") -JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix") -JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode") -JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS") -JMESSAGE(JERR_BAD_DCTSIZE, "IDCT output block size %d not supported") -JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace") -JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace") -JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length") -JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan") -JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d") -JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d") -JMESSAGE(JERR_BAD_PROGRESSION, - "Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d") -JMESSAGE(JERR_BAD_PROG_SCRIPT, - "Invalid progressive parameters at scan script entry %d") -JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors") -JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d") -JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d") -JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access") -JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small") -JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here") -JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet") -JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d") -JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request") -JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d") -JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x") -JMESSAGE(JERR_DHT_COUNTS, "Bogus DHT counts") -JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d") -JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d") -JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)") -JMESSAGE(JERR_EMS_READ, "Read from EMS failed") -JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed") -JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan") -JMESSAGE(JERR_FILE_READ, "Input file read error") -JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?") -JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet") -JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow") -JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry") -JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels") -JMESSAGE(JERR_INPUT_EMPTY, "Empty input file") -JMESSAGE(JERR_INPUT_EOF, "Premature end of input file") -JMESSAGE(JERR_MISMATCHED_QUANT_TABLE, - "Cannot transcode due to multiple use of quantization table %d") -JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data") -JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change") -JMESSAGE(JERR_NOTIMPL, "Not implemented yet") -JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time") -JMESSAGE(JERR_NO_PROGRESSIVE, "Progressive JPEGs not supported, use regular JPEG instead") -JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported") -JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined") -JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image") -JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined") -JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x") -JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)") -JMESSAGE(JERR_QUANT_COMPONENTS, - "Cannot quantize more than %d color components") -JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors") -JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors") -JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers") -JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker") -JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x") -JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers") -JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF") -JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s") -JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file") -JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file") -JMESSAGE(JERR_TFILE_WRITE, - "Write failed on temporary file --- out of disk space?") -JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines") -JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x") -JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up") -JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation") -JMESSAGE(JERR_XMS_READ, "Read from XMS failed") -JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed") -JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT) -JMESSAGE(JMSG_VERSION, JVERSION) -JMESSAGE(JTRC_16BIT_TABLES, - "Caution: quantization tables are too coarse for baseline JPEG") -JMESSAGE(JTRC_ADOBE, - "Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d") -JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u") -JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u") -JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x") -JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x") -JMESSAGE(JTRC_DQT, "Define Quantization Table %d precision %d") -JMESSAGE(JTRC_DRI, "Define Restart Interval %u") -JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u") -JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u") -JMESSAGE(JTRC_EOI, "End Of Image") -JMESSAGE(JTRC_HUFFBITS, " %3d %3d %3d %3d %3d %3d %3d %3d") -JMESSAGE(JTRC_JFIF, "JFIF APP0 marker, density %dx%d %d") -JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE, - "Warning: thumbnail image size does not match data length %u") -JMESSAGE(JTRC_JFIF_MINOR, "Unknown JFIF minor revision number %d.%02d") -JMESSAGE(JTRC_JFIF_THUMBNAIL, " with %d x %d thumbnail image") -JMESSAGE(JTRC_MISC_MARKER, "Skipping marker 0x%02x, length %u") -JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x") -JMESSAGE(JTRC_QUANTVALS, " %4u %4u %4u %4u %4u %4u %4u %4u") -JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors") -JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors") -JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization") -JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d") -JMESSAGE(JTRC_RST, "RST%d") -JMESSAGE(JTRC_SMOOTH_NOTIMPL, - "Smoothing not supported with nonstandard sampling ratios") -JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d") -JMESSAGE(JTRC_SOF_COMPONENT, " Component %d: %dhx%dv q=%d") -JMESSAGE(JTRC_SOI, "Start of Image") -JMESSAGE(JTRC_SOS, "Start Of Scan: %d components") -JMESSAGE(JTRC_SOS_COMPONENT, " Component %d: dc=%d ac=%d") -JMESSAGE(JTRC_SOS_PARAMS, " Ss=%d, Se=%d, Ah=%d, Al=%d") -JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s") -JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s") -JMESSAGE(JTRC_UNKNOWN_IDS, - "Unrecognized component IDs %d %d %d, assuming YCbCr") -JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u") -JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u") -JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d") -JMESSAGE(JWRN_BOGUS_PROGRESSION, - "Inconsistent progression sequence for component %d coefficient %d") -JMESSAGE(JWRN_EXTRANEOUS_DATA, - "Corrupt JPEG data: %u extraneous bytes before marker 0x%02x") -JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment") -JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code") -JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d") -JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file") -JMESSAGE(JWRN_MUST_RESYNC, - "Corrupt JPEG data: found marker 0x%02x instead of RST%d") -JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG") -JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines") - -#ifdef JMAKE_ENUM_LIST - - JMSG_LASTMSGCODE -} J_MESSAGE_CODE; - -#undef JMAKE_ENUM_LIST -#endif /* JMAKE_ENUM_LIST */ - -/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ -#undef JMESSAGE - -#ifndef JERROR_H -#define JERROR_H - -// Rad additions, using longjmp to recover from errors -#include -EXTERN jmp_buf rad_loadfailed; -EXTERN char rad_errormsg[JMSG_LENGTH_MAX]; - -/* Macros to simplify using the error and trace message stuff */ -/* The first parameter is either type of cinfo pointer */ - -/* Fatal errors (print message and exit) */ -#define ERREXIT(cinfo,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT1(cinfo,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT2(cinfo,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT3(cinfo,code,p1,p2,p3) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT4(cinfo,code,p1,p2,p3,p4) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (cinfo)->err->msg_parm.i[3] = (p4), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXITS(cinfo,code,str) \ - ((cinfo)->err->msg_code = (code), \ - strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) - -#define MAKESTMT(stuff) do { stuff } while (0) - -/* Nonfatal errors (we can keep going, but the data is probably corrupt) */ -#define WARNMS(cinfo,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) -#define WARNMS1(cinfo,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) -#define WARNMS2(cinfo,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) - -/* Informational/debugging messages */ -#define TRACEMS(cinfo,lvl,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS1(cinfo,lvl,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS2(cinfo,lvl,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS3(cinfo,lvl,code,p1,p2,p3) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - _mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMSS(cinfo,lvl,code,str) \ - ((cinfo)->err->msg_code = (code), \ - strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) - -#endif /* JERROR_H */ diff --git a/libs/jpeg6/jfdctflt.cpp b/libs/jpeg6/jfdctflt.cpp deleted file mode 100644 index f41bff82..00000000 --- a/libs/jpeg6/jfdctflt.cpp +++ /dev/null @@ -1,336 +0,0 @@ -/* - - * jfdctflt.c - - * - - * Copyright (C) 1994, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains a floating-point implementation of the - - * forward DCT (Discrete Cosine Transform). - - * - - * This implementation should be more accurate than either of the integer - - * DCT implementations. However, it may not give the same results on all - - * machines because of differences in roundoff behavior. Speed will depend - - * on the hardware's floating point capacity. - - * - - * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT - - * on each column. Direct algorithms are also available, but they are - - * much more complex and seem not to be any faster when reduced to code. - - * - - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - - * JPEG textbook (see REFERENCES section in file README). The following code - - * is based directly on figure 4-8 in P&M. - - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - - * possible to arrange the computation so that many of the multiplies are - - * simple scalings of the final outputs. These multiplies can then be - - * folded into the multiplications or divisions by the JPEG quantization - - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - - * to be done in the DCT itself. - - * The primary disadvantage of this method is that with a fixed-point - - * implementation, accuracy is lost due to imprecise representation of the - - * scaled quantization values. However, that problem does not arise if - - * we use floating point arithmetic. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - -#include "jdct.h" /* Private declarations for DCT subsystem */ - - - -#ifdef DCT_FLOAT_SUPPORTED - - - - - -/* - - * This module is specialized to the case DCTSIZE = 8. - - */ - - - -#if DCTSIZE != 8 - - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ - -#endif - - - - - -/* - - * Perform the forward DCT on one block of samples. - - */ - - - -GLOBAL void - -jpeg_fdct_float (FAST_FLOAT * data) - -{ - - FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - - FAST_FLOAT tmp10, tmp11, tmp12, tmp13; - - FAST_FLOAT z1, z2, z3, z4, z5, z11, z13; - - FAST_FLOAT *dataptr; - - int ctr; - - - - /* Pass 1: process rows. */ - - - - dataptr = data; - - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - - tmp0 = dataptr[0] + dataptr[7]; - - tmp7 = dataptr[0] - dataptr[7]; - - tmp1 = dataptr[1] + dataptr[6]; - - tmp6 = dataptr[1] - dataptr[6]; - - tmp2 = dataptr[2] + dataptr[5]; - - tmp5 = dataptr[2] - dataptr[5]; - - tmp3 = dataptr[3] + dataptr[4]; - - tmp4 = dataptr[3] - dataptr[4]; - - - - /* Even part */ - - - - tmp10 = tmp0 + tmp3; /* phase 2 */ - - tmp13 = tmp0 - tmp3; - - tmp11 = tmp1 + tmp2; - - tmp12 = tmp1 - tmp2; - - - - dataptr[0] = tmp10 + tmp11; /* phase 3 */ - - dataptr[4] = tmp10 - tmp11; - - - - z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ - - dataptr[2] = tmp13 + z1; /* phase 5 */ - - dataptr[6] = tmp13 - z1; - - - - /* Odd part */ - - - - tmp10 = tmp4 + tmp5; /* phase 2 */ - - tmp11 = tmp5 + tmp6; - - tmp12 = tmp6 + tmp7; - - - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - - z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ - - z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ - - z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ - - z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ - - - - z11 = tmp7 + z3; /* phase 5 */ - - z13 = tmp7 - z3; - - - - dataptr[5] = z13 + z2; /* phase 6 */ - - dataptr[3] = z13 - z2; - - dataptr[1] = z11 + z4; - - dataptr[7] = z11 - z4; - - - - dataptr += DCTSIZE; /* advance pointer to next row */ - - } - - - - /* Pass 2: process columns. */ - - - - dataptr = data; - - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - - tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - - tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - - tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - - tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - - - /* Even part */ - - - - tmp10 = tmp0 + tmp3; /* phase 2 */ - - tmp13 = tmp0 - tmp3; - - tmp11 = tmp1 + tmp2; - - tmp12 = tmp1 - tmp2; - - - - dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */ - - dataptr[DCTSIZE*4] = tmp10 - tmp11; - - - - z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ - - dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */ - - dataptr[DCTSIZE*6] = tmp13 - z1; - - - - /* Odd part */ - - - - tmp10 = tmp4 + tmp5; /* phase 2 */ - - tmp11 = tmp5 + tmp6; - - tmp12 = tmp6 + tmp7; - - - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - - z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ - - z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ - - z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ - - z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ - - - - z11 = tmp7 + z3; /* phase 5 */ - - z13 = tmp7 - z3; - - - - dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */ - - dataptr[DCTSIZE*3] = z13 - z2; - - dataptr[DCTSIZE*1] = z11 + z4; - - dataptr[DCTSIZE*7] = z11 - z4; - - - - dataptr++; /* advance pointer to next column */ - - } - -} - - - -#endif /* DCT_FLOAT_SUPPORTED */ - diff --git a/libs/jpeg6/jidctflt.cpp b/libs/jpeg6/jidctflt.cpp deleted file mode 100644 index 9e966daf..00000000 --- a/libs/jpeg6/jidctflt.cpp +++ /dev/null @@ -1,482 +0,0 @@ -/* - - * jidctflt.c - - * - - * Copyright (C) 1994, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains a floating-point implementation of the - - * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine - - * must also perform dequantization of the input coefficients. - - * - - * This implementation should be more accurate than either of the integer - - * IDCT implementations. However, it may not give the same results on all - - * machines because of differences in roundoff behavior. Speed will depend - - * on the hardware's floating point capacity. - - * - - * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT - - * on each row (or vice versa, but it's more convenient to emit a row at - - * a time). Direct algorithms are also available, but they are much more - - * complex and seem not to be any faster when reduced to code. - - * - - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - - * JPEG textbook (see REFERENCES section in file README). The following code - - * is based directly on figure 4-8 in P&M. - - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - - * possible to arrange the computation so that many of the multiplies are - - * simple scalings of the final outputs. These multiplies can then be - - * folded into the multiplications or divisions by the JPEG quantization - - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - - * to be done in the DCT itself. - - * The primary disadvantage of this method is that with a fixed-point - - * implementation, accuracy is lost due to imprecise representation of the - - * scaled quantization values. However, that problem does not arise if - - * we use floating point arithmetic. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - -#include "jdct.h" /* Private declarations for DCT subsystem */ - - - -#ifdef DCT_FLOAT_SUPPORTED - - - - - -/* - - * This module is specialized to the case DCTSIZE = 8. - - */ - - - -#if DCTSIZE != 8 - - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ - -#endif - - - - - -/* Dequantize a coefficient by multiplying it by the multiplier-table - - * entry; produce a float result. - - */ - - - -#define DEQUANTIZE(coef,quantval) (((FAST_FLOAT) (coef)) * (quantval)) - - - - - -/* - - * Perform dequantization and inverse DCT on one block of coefficients. - - */ - - - -GLOBAL void - -jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, - - JSAMPARRAY output_buf, JDIMENSION output_col) - -{ - - FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - - FAST_FLOAT tmp10, tmp11, tmp12, tmp13; - - FAST_FLOAT z5, z10, z11, z12, z13; - - JCOEFPTR inptr; - - FLOAT_MULT_TYPE * quantptr; - - FAST_FLOAT * wsptr; - - JSAMPROW outptr; - - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - - int ctr; - - FAST_FLOAT workspace[DCTSIZE2]; /* buffers data between passes */ - - SHIFT_TEMPS - - - - /* Pass 1: process columns from input, store into work array. */ - - - - inptr = coef_block; - - quantptr = (FLOAT_MULT_TYPE *) compptr->dct_table; - - wsptr = workspace; - - for (ctr = DCTSIZE; ctr > 0; ctr--) { - - /* Due to quantization, we will usually find that many of the input - - * coefficients are zero, especially the AC terms. We can exploit this - - * by short-circuiting the IDCT calculation for any column in which all - - * the AC terms are zero. In that case each output is equal to the - - * DC coefficient (with scale factor as needed). - - * With typical images and quantization tables, half or more of the - - * column DCT calculations can be simplified this way. - - */ - - - - if ((inptr[DCTSIZE*1] | inptr[DCTSIZE*2] | inptr[DCTSIZE*3] | - - inptr[DCTSIZE*4] | inptr[DCTSIZE*5] | inptr[DCTSIZE*6] | - - inptr[DCTSIZE*7]) == 0) { - - /* AC terms all zero */ - - FAST_FLOAT dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - - - wsptr[DCTSIZE*0] = dcval; - - wsptr[DCTSIZE*1] = dcval; - - wsptr[DCTSIZE*2] = dcval; - - wsptr[DCTSIZE*3] = dcval; - - wsptr[DCTSIZE*4] = dcval; - - wsptr[DCTSIZE*5] = dcval; - - wsptr[DCTSIZE*6] = dcval; - - wsptr[DCTSIZE*7] = dcval; - - - - inptr++; /* advance pointers to next column */ - - quantptr++; - - wsptr++; - - continue; - - } - - - - /* Even part */ - - - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - tmp1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - - tmp3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - - - tmp10 = tmp0 + tmp2; /* phase 3 */ - - tmp11 = tmp0 - tmp2; - - - - tmp13 = tmp1 + tmp3; /* phases 5-3 */ - - tmp12 = (tmp1 - tmp3) * ((FAST_FLOAT) 1.414213562) - tmp13; /* 2*c4 */ - - - - tmp0 = tmp10 + tmp13; /* phase 2 */ - - tmp3 = tmp10 - tmp13; - - tmp1 = tmp11 + tmp12; - - tmp2 = tmp11 - tmp12; - - - - /* Odd part */ - - - - tmp4 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - tmp5 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - tmp6 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - - tmp7 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - - - z13 = tmp6 + tmp5; /* phase 6 */ - - z10 = tmp6 - tmp5; - - z11 = tmp4 + tmp7; - - z12 = tmp4 - tmp7; - - - - tmp7 = z11 + z13; /* phase 5 */ - - tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); /* 2*c4 */ - - - - z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ - - tmp10 = ((FAST_FLOAT) 1.082392200) * z12 - z5; /* 2*(c2-c6) */ - - tmp12 = ((FAST_FLOAT) -2.613125930) * z10 + z5; /* -2*(c2+c6) */ - - - - tmp6 = tmp12 - tmp7; /* phase 2 */ - - tmp5 = tmp11 - tmp6; - - tmp4 = tmp10 + tmp5; - - - - wsptr[DCTSIZE*0] = tmp0 + tmp7; - - wsptr[DCTSIZE*7] = tmp0 - tmp7; - - wsptr[DCTSIZE*1] = tmp1 + tmp6; - - wsptr[DCTSIZE*6] = tmp1 - tmp6; - - wsptr[DCTSIZE*2] = tmp2 + tmp5; - - wsptr[DCTSIZE*5] = tmp2 - tmp5; - - wsptr[DCTSIZE*4] = tmp3 + tmp4; - - wsptr[DCTSIZE*3] = tmp3 - tmp4; - - - - inptr++; /* advance pointers to next column */ - - quantptr++; - - wsptr++; - - } - - - - /* Pass 2: process rows from work array, store into output array. */ - - /* Note that we must descale the results by a factor of 8 == 2**3. */ - - - - wsptr = workspace; - - for (ctr = 0; ctr < DCTSIZE; ctr++) { - - outptr = output_buf[ctr] + output_col; - - /* Rows of zeroes can be exploited in the same way as we did with columns. - - * However, the column calculation has created many nonzero AC terms, so - - * the simplification applies less often (typically 5% to 10% of the time). - - * And testing floats for zero is relatively expensive, so we don't bother. - - */ - - - - /* Even part */ - - - - tmp10 = wsptr[0] + wsptr[4]; - - tmp11 = wsptr[0] - wsptr[4]; - - - - tmp13 = wsptr[2] + wsptr[6]; - - tmp12 = (wsptr[2] - wsptr[6]) * ((FAST_FLOAT) 1.414213562) - tmp13; - - - - tmp0 = tmp10 + tmp13; - - tmp3 = tmp10 - tmp13; - - tmp1 = tmp11 + tmp12; - - tmp2 = tmp11 - tmp12; - - - - /* Odd part */ - - - - z13 = wsptr[5] + wsptr[3]; - - z10 = wsptr[5] - wsptr[3]; - - z11 = wsptr[1] + wsptr[7]; - - z12 = wsptr[1] - wsptr[7]; - - - - tmp7 = z11 + z13; - - tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); - - - - z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ - - tmp10 = ((FAST_FLOAT) 1.082392200) * z12 - z5; /* 2*(c2-c6) */ - - tmp12 = ((FAST_FLOAT) -2.613125930) * z10 + z5; /* -2*(c2+c6) */ - - - - tmp6 = tmp12 - tmp7; - - tmp5 = tmp11 - tmp6; - - tmp4 = tmp10 + tmp5; - - - - /* Final output stage: scale down by a factor of 8 and range-limit */ - - - - outptr[0] = range_limit[(int) DESCALE((INT32) (tmp0 + tmp7), 3) - - & RANGE_MASK]; - - outptr[7] = range_limit[(int) DESCALE((INT32) (tmp0 - tmp7), 3) - - & RANGE_MASK]; - - outptr[1] = range_limit[(int) DESCALE((INT32) (tmp1 + tmp6), 3) - - & RANGE_MASK]; - - outptr[6] = range_limit[(int) DESCALE((INT32) (tmp1 - tmp6), 3) - - & RANGE_MASK]; - - outptr[2] = range_limit[(int) DESCALE((INT32) (tmp2 + tmp5), 3) - - & RANGE_MASK]; - - outptr[5] = range_limit[(int) DESCALE((INT32) (tmp2 - tmp5), 3) - - & RANGE_MASK]; - - outptr[4] = range_limit[(int) DESCALE((INT32) (tmp3 + tmp4), 3) - - & RANGE_MASK]; - - outptr[3] = range_limit[(int) DESCALE((INT32) (tmp3 - tmp4), 3) - - & RANGE_MASK]; - - - - wsptr += DCTSIZE; /* advance pointer to next row */ - - } - -} - - - -#endif /* DCT_FLOAT_SUPPORTED */ - diff --git a/libs/jpeg6/jinclude.h b/libs/jpeg6/jinclude.h deleted file mode 100644 index 5ff60fed..00000000 --- a/libs/jpeg6/jinclude.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * jinclude.h - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file exists to provide a single place to fix any problems with - * including the wrong system include files. (Common problems are taken - * care of by the standard jconfig symbols, but on really weird systems - * you may have to edit this file.) - * - * NOTE: this file is NOT intended to be included by applications using the - * JPEG library. Most applications need only include jpeglib.h. - */ - - -/* Include auto-config file to find out which system include files we need. */ - -#include "jconfig.h" /* auto configuration options */ -#define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */ - -/* - * We need the NULL macro and size_t typedef. - * On an ANSI-conforming system it is sufficient to include . - * Otherwise, we get them from or ; we may have to - * pull in as well. - * Note that the core JPEG library does not require ; - * only the default error handler and data source/destination modules do. - * But we must pull it in because of the references to FILE in jpeglib.h. - * You can remove those references if you want to compile without . - */ - -#ifdef HAVE_STDDEF_H -#include -#endif - -#ifdef HAVE_STDLIB_H -#include -#endif - -#ifdef NEED_SYS_TYPES_H -#include -#endif - -#include - -/* - * We need memory copying and zeroing functions, plus strncpy(). - * ANSI and System V implementations declare these in . - * BSD doesn't have the mem() functions, but it does have bcopy()/bzero(). - * Some systems may declare memset and memcpy in . - * - * NOTE: we assume the size parameters to these functions are of type size_t. - * Change the casts in these macros if not! - */ - -#ifdef NEED_BSD_STRINGS - -#include -#define MEMZERO(target,size) bzero((void *)(target), (size_t)(size)) -#define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size)) - -#else /* not BSD, assume ANSI/SysV string lib */ - -#include -#define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size)) -#define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size)) - -#endif - -/* - * In ANSI C, and indeed any rational implementation, size_t is also the - * type returned by sizeof(). However, it seems there are some irrational - * implementations out there, in which sizeof() returns an int even though - * size_t is defined as long or unsigned long. To ensure consistent results - * we always use this SIZEOF() macro in place of using sizeof() directly. - */ - -#define SIZEOF(object) ((size_t) sizeof(object)) - -/* - * The modules that use fread() and fwrite() always invoke them through - * these macros. On some systems you may need to twiddle the argument casts. - * CAUTION: argument order is different from underlying functions! - */ - -#define JFREAD(file,buf,sizeofbuf) \ - ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) -#define JFWRITE(file,buf,sizeofbuf) \ - ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) diff --git a/libs/jpeg6/jmemmgr.cpp b/libs/jpeg6/jmemmgr.cpp deleted file mode 100644 index 9204b324..00000000 --- a/libs/jpeg6/jmemmgr.cpp +++ /dev/null @@ -1,2230 +0,0 @@ -/* - - * jmemmgr.c - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains the JPEG system-independent memory management - - * routines. This code is usable across a wide variety of machines; most - - * of the system dependencies have been isolated in a separate file. - - * The major functions provided here are: - - * * pool-based allocation and freeing of memory; - - * * policy decisions about how to divide available memory among the - - * virtual arrays; - - * * control logic for swapping virtual arrays between main memory and - - * backing storage. - - * The separate system-dependent file provides the actual backing-storage - - * access code, and it contains the policy decision about how much total - - * main memory to use. - - * This file is system-dependent in the sense that some of its functions - - * are unnecessary in some systems. For example, if there is enough virtual - - * memory so that backing storage will never be used, much of the virtual - - * array control logic could be removed. (Of course, if you have that much - - * memory then you shouldn't care about a little bit of unused code...) - - */ - - - -#define JPEG_INTERNALS - -#define AM_MEMORY_MANAGER /* we define jvirt_Xarray_control structs */ - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - -#include "jmemsys.h" /* import the system-dependent declarations */ - - - -#ifndef NO_GETENV - -#ifndef HAVE_STDLIB_H /* should declare getenv() */ - -extern char * getenv JPP((const char * name)); - -#endif - -#endif - - - - - -/* - - * Some important notes: - - * The allocation routines provided here must never return NULL. - - * They should exit to error_exit if unsuccessful. - - * - - * It's not a good idea to try to merge the sarray and barray routines, - - * even though they are textually almost the same, because samples are - - * usually stored as bytes while coefficients are shorts or ints. Thus, - - * in machines where byte pointers have a different representation from - - * word pointers, the resulting machine code could not be the same. - - */ - - - - - -/* - - * Many machines require storage alignment: longs must start on 4-byte - - * boundaries, doubles on 8-byte boundaries, etc. On such machines, malloc() - - * always returns pointers that are multiples of the worst-case alignment - - * requirement, and we had better do so too. - - * There isn't any really portable way to determine the worst-case alignment - - * requirement. This module assumes that the alignment requirement is - - * multiples of sizeof(ALIGN_TYPE). - - * By default, we define ALIGN_TYPE as double. This is necessary on some - - * workstations (where doubles really do need 8-byte alignment) and will work - - * fine on nearly everything. If your machine has lesser alignment needs, - - * you can save a few bytes by making ALIGN_TYPE smaller. - - * The only place I know of where this will NOT work is certain Macintosh - - * 680x0 compilers that define double as a 10-byte IEEE extended float. - - * Doing 10-byte alignment is counterproductive because longwords won't be - - * aligned well. Put "#define ALIGN_TYPE long" in jconfig.h if you have - - * such a compiler. - - */ - - - -#ifndef ALIGN_TYPE /* so can override from jconfig.h */ - -#define ALIGN_TYPE double - -#endif - - - - - -/* - - * We allocate objects from "pools", where each pool is gotten with a single - - * request to jpeg_get_small() or jpeg_get_large(). There is no per-object - - * overhead within a pool, except for alignment padding. Each pool has a - - * header with a link to the next pool of the same class. - - * Small and large pool headers are identical except that the latter's - - * link pointer must be FAR on 80x86 machines. - - * Notice that the "real" header fields are union'ed with a dummy ALIGN_TYPE - - * field. This forces the compiler to make SIZEOF(small_pool_hdr) a multiple - - * of the alignment requirement of ALIGN_TYPE. - - */ - - - -typedef union small_pool_struct * small_pool_ptr; - - - -typedef union small_pool_struct { - - struct { - - small_pool_ptr next; /* next in list of pools */ - - size_t bytes_used; /* how many bytes already used within pool */ - - size_t bytes_left; /* bytes still available in this pool */ - - } hdr; - - ALIGN_TYPE dummy; /* included in union to ensure alignment */ - -} small_pool_hdr; - - - -typedef union large_pool_struct FAR * large_pool_ptr; - - - -typedef union large_pool_struct { - - struct { - - large_pool_ptr next; /* next in list of pools */ - - size_t bytes_used; /* how many bytes already used within pool */ - - size_t bytes_left; /* bytes still available in this pool */ - - } hdr; - - ALIGN_TYPE dummy; /* included in union to ensure alignment */ - -} large_pool_hdr; - - - - - -/* - - * Here is the full definition of a memory manager object. - - */ - - - -typedef struct { - - struct jpeg_memory_mgr pub; /* public fields */ - - - - /* Each pool identifier (lifetime class) names a linked list of pools. */ - - small_pool_ptr small_list[JPOOL_NUMPOOLS]; - - large_pool_ptr large_list[JPOOL_NUMPOOLS]; - - - - /* Since we only have one lifetime class of virtual arrays, only one - - * linked list is necessary (for each datatype). Note that the virtual - - * array control blocks being linked together are actually stored somewhere - - * in the small-pool list. - - */ - - jvirt_sarray_ptr virt_sarray_list; - - jvirt_barray_ptr virt_barray_list; - - - - /* This counts total space obtained from jpeg_get_small/large */ - - long total_space_allocated; - - - - /* alloc_sarray and alloc_barray set this value for use by virtual - - * array routines. - - */ - - JDIMENSION last_rowsperchunk; /* from most recent alloc_sarray/barray */ - -} my_memory_mgr; - - - -typedef my_memory_mgr * my_mem_ptr; - - - - - -/* - - * The control blocks for virtual arrays. - - * Note that these blocks are allocated in the "small" pool area. - - * System-dependent info for the associated backing store (if any) is hidden - - * inside the backing_store_info struct. - - */ - - - -struct jvirt_sarray_control { - - JSAMPARRAY mem_buffer; /* => the in-memory buffer */ - - JDIMENSION rows_in_array; /* total virtual array height */ - - JDIMENSION samplesperrow; /* width of array (and of memory buffer) */ - - JDIMENSION maxaccess; /* max rows accessed by access_virt_sarray */ - - JDIMENSION rows_in_mem; /* height of memory buffer */ - - JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ - - JDIMENSION cur_start_row; /* first logical row # in the buffer */ - - JDIMENSION first_undef_row; /* row # of first uninitialized row */ - - boolean pre_zero; /* pre-zero mode requested? */ - - boolean dirty; /* do current buffer contents need written? */ - - boolean b_s_open; /* is backing-store data valid? */ - - jvirt_sarray_ptr next; /* link to next virtual sarray control block */ - - backing_store_info b_s_info; /* System-dependent control info */ - -}; - - - -struct jvirt_barray_control { - - JBLOCKARRAY mem_buffer; /* => the in-memory buffer */ - - JDIMENSION rows_in_array; /* total virtual array height */ - - JDIMENSION blocksperrow; /* width of array (and of memory buffer) */ - - JDIMENSION maxaccess; /* max rows accessed by access_virt_barray */ - - JDIMENSION rows_in_mem; /* height of memory buffer */ - - JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ - - JDIMENSION cur_start_row; /* first logical row # in the buffer */ - - JDIMENSION first_undef_row; /* row # of first uninitialized row */ - - boolean pre_zero; /* pre-zero mode requested? */ - - boolean dirty; /* do current buffer contents need written? */ - - boolean b_s_open; /* is backing-store data valid? */ - - jvirt_barray_ptr next; /* link to next virtual barray control block */ - - backing_store_info b_s_info; /* System-dependent control info */ - -}; - - - - - -#ifdef MEM_STATS /* optional extra stuff for statistics */ - - - -LOCAL void - -print_mem_stats (j_common_ptr cinfo, int pool_id) - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - small_pool_ptr shdr_ptr; - - large_pool_ptr lhdr_ptr; - - - - /* Since this is only a debugging stub, we can cheat a little by using - - * fprintf directly rather than going through the trace message code. - - * This is helpful because message parm array can't handle longs. - - */ - - fprintf(stderr, "Freeing pool %d, total space = %ld\n", - - pool_id, mem->total_space_allocated); - - - - for (lhdr_ptr = mem->large_list[pool_id]; lhdr_ptr != NULL; - - lhdr_ptr = lhdr_ptr->hdr.next) { - - fprintf(stderr, " Large chunk used %ld\n", - - (long) lhdr_ptr->hdr.bytes_used); - - } - - - - for (shdr_ptr = mem->small_list[pool_id]; shdr_ptr != NULL; - - shdr_ptr = shdr_ptr->hdr.next) { - - fprintf(stderr, " Small chunk used %ld free %ld\n", - - (long) shdr_ptr->hdr.bytes_used, - - (long) shdr_ptr->hdr.bytes_left); - - } - -} - - - -#endif /* MEM_STATS */ - - - - - -LOCAL void - -out_of_memory (j_common_ptr cinfo, int which) - -/* Report an out-of-memory error and stop execution */ - -/* If we compiled MEM_STATS support, report alloc requests before dying */ - -{ - -#ifdef MEM_STATS - - cinfo->err->trace_level = 2; /* force self_destruct to report stats */ - -#endif - - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, which); - -} - - - - - -/* - - * Allocation of "small" objects. - - * - - * For these, we use pooled storage. When a new pool must be created, - - * we try to get enough space for the current request plus a "slop" factor, - - * where the slop will be the amount of leftover space in the new pool. - - * The speed vs. space tradeoff is largely determined by the slop values. - - * A different slop value is provided for each pool class (lifetime), - - * and we also distinguish the first pool of a class from later ones. - - * NOTE: the values given work fairly well on both 16- and 32-bit-int - - * machines, but may be too small if longs are 64 bits or more. - - */ - - - -static const size_t first_pool_slop[JPOOL_NUMPOOLS] = - -{ - - 1600, /* first PERMANENT pool */ - - 16000 /* first IMAGE pool */ - -}; - - - -static const size_t extra_pool_slop[JPOOL_NUMPOOLS] = - -{ - - 0, /* additional PERMANENT pools */ - - 5000 /* additional IMAGE pools */ - -}; - - - -#define MIN_SLOP 50 /* greater than 0 to avoid futile looping */ - - - - - -METHODDEF void * - -alloc_small (j_common_ptr cinfo, int pool_id, size_t sizeofobject) - -/* Allocate a "small" object */ - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - small_pool_ptr hdr_ptr, prev_hdr_ptr; - - char * data_ptr; - - size_t odd_bytes, min_request, slop; - - - - /* Check for unsatisfiable request (do now to ensure no overflow below) */ - - if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(small_pool_hdr))) - - out_of_memory(cinfo, 1); /* request exceeds malloc's ability */ - - - - /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ - - odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); - - if (odd_bytes > 0) - - sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; - - - - /* See if space is available in any existing pool */ - - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - prev_hdr_ptr = NULL; - - hdr_ptr = mem->small_list[pool_id]; - - while (hdr_ptr != NULL) { - - if (hdr_ptr->hdr.bytes_left >= sizeofobject) - - break; /* found pool with enough space */ - - prev_hdr_ptr = hdr_ptr; - - hdr_ptr = hdr_ptr->hdr.next; - - } - - - - /* Time to make a new pool? */ - - if (hdr_ptr == NULL) { - - /* min_request is what we need now, slop is what will be leftover */ - - min_request = sizeofobject + SIZEOF(small_pool_hdr); - - if (prev_hdr_ptr == NULL) /* first pool in class? */ - - slop = first_pool_slop[pool_id]; - - else - - slop = extra_pool_slop[pool_id]; - - /* Don't ask for more than MAX_ALLOC_CHUNK */ - - if (slop > (size_t) (MAX_ALLOC_CHUNK-min_request)) - - slop = (size_t) (MAX_ALLOC_CHUNK-min_request); - - /* Try to get space, if fail reduce slop and try again */ - - for (;;) { - - hdr_ptr = (small_pool_ptr) jpeg_get_small(cinfo, min_request + slop); - - if (hdr_ptr != NULL) - - break; - - slop /= 2; - - if (slop < MIN_SLOP) /* give up when it gets real small */ - - out_of_memory(cinfo, 2); /* jpeg_get_small failed */ - - } - - mem->total_space_allocated += min_request + slop; - - /* Success, initialize the new pool header and add to end of list */ - - hdr_ptr->hdr.next = NULL; - - hdr_ptr->hdr.bytes_used = 0; - - hdr_ptr->hdr.bytes_left = sizeofobject + slop; - - if (prev_hdr_ptr == NULL) /* first pool in class? */ - - mem->small_list[pool_id] = hdr_ptr; - - else - - prev_hdr_ptr->hdr.next = hdr_ptr; - - } - - - - /* OK, allocate the object from the current pool */ - - data_ptr = (char *) (hdr_ptr + 1); /* point to first data byte in pool */ - - data_ptr += hdr_ptr->hdr.bytes_used; /* point to place for object */ - - hdr_ptr->hdr.bytes_used += sizeofobject; - - hdr_ptr->hdr.bytes_left -= sizeofobject; - - - - return (void *) data_ptr; - -} - - - - - -/* - - * Allocation of "large" objects. - - * - - * The external semantics of these are the same as "small" objects, - - * except that FAR pointers are used on 80x86. However the pool - - * management heuristics are quite different. We assume that each - - * request is large enough that it may as well be passed directly to - - * jpeg_get_large; the pool management just links everything together - - * so that we can free it all on demand. - - * Note: the major use of "large" objects is in JSAMPARRAY and JBLOCKARRAY - - * structures. The routines that create these structures (see below) - - * deliberately bunch rows together to ensure a large request size. - - */ - - - -METHODDEF void FAR * - -alloc_large (j_common_ptr cinfo, int pool_id, size_t sizeofobject) - -/* Allocate a "large" object */ - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - large_pool_ptr hdr_ptr; - - size_t odd_bytes; - - - - /* Check for unsatisfiable request (do now to ensure no overflow below) */ - - if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr))) - - out_of_memory(cinfo, 3); /* request exceeds malloc's ability */ - - - - /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ - - odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); - - if (odd_bytes > 0) - - sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; - - - - /* Always make a new pool */ - - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - - - hdr_ptr = (large_pool_ptr) jpeg_get_large(cinfo, sizeofobject + - - SIZEOF(large_pool_hdr)); - - if (hdr_ptr == NULL) - - out_of_memory(cinfo, 4); /* jpeg_get_large failed */ - - mem->total_space_allocated += sizeofobject + SIZEOF(large_pool_hdr); - - - - /* Success, initialize the new pool header and add to list */ - - hdr_ptr->hdr.next = mem->large_list[pool_id]; - - /* We maintain space counts in each pool header for statistical purposes, - - * even though they are not needed for allocation. - - */ - - hdr_ptr->hdr.bytes_used = sizeofobject; - - hdr_ptr->hdr.bytes_left = 0; - - mem->large_list[pool_id] = hdr_ptr; - - - - return (void FAR *) (hdr_ptr + 1); /* point to first data byte in pool */ - -} - - - - - -/* - - * Creation of 2-D sample arrays. - - * The pointers are in near heap, the samples themselves in FAR heap. - - * - - * To minimize allocation overhead and to allow I/O of large contiguous - - * blocks, we allocate the sample rows in groups of as many rows as possible - - * without exceeding MAX_ALLOC_CHUNK total bytes per allocation request. - - * NB: the virtual array control routines, later in this file, know about - - * this chunking of rows. The rowsperchunk value is left in the mem manager - - * object so that it can be saved away if this sarray is the workspace for - - * a virtual array. - - */ - - - -METHODDEF JSAMPARRAY - -alloc_sarray (j_common_ptr cinfo, int pool_id, - - JDIMENSION samplesperrow, JDIMENSION numrows) - -/* Allocate a 2-D sample array */ - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - JSAMPARRAY result; - - JSAMPROW workspace; - - JDIMENSION rowsperchunk, currow, i; - - long ltemp; - - - - /* Calculate max # of rows allowed in one allocation chunk */ - - ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / - - ((long) samplesperrow * SIZEOF(JSAMPLE)); - - if (ltemp <= 0) - - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - - if (ltemp < (long) numrows) - - rowsperchunk = (JDIMENSION) ltemp; - - else - - rowsperchunk = numrows; - - mem->last_rowsperchunk = rowsperchunk; - - - - /* Get space for row pointers (small object) */ - - result = (JSAMPARRAY) alloc_small(cinfo, pool_id, - - (size_t) (numrows * SIZEOF(JSAMPROW))); - - - - /* Get the rows themselves (large objects) */ - - currow = 0; - - while (currow < numrows) { - - rowsperchunk = MIN(rowsperchunk, numrows - currow); - - workspace = (JSAMPROW) alloc_large(cinfo, pool_id, - - (size_t) ((size_t) rowsperchunk * (size_t) samplesperrow - - * SIZEOF(JSAMPLE))); - - for (i = rowsperchunk; i > 0; i--) { - - result[currow++] = workspace; - - workspace += samplesperrow; - - } - - } - - - - return result; - -} - - - - - -/* - - * Creation of 2-D coefficient-block arrays. - - * This is essentially the same as the code for sample arrays, above. - - */ - - - -METHODDEF JBLOCKARRAY - -alloc_barray (j_common_ptr cinfo, int pool_id, - - JDIMENSION blocksperrow, JDIMENSION numrows) - -/* Allocate a 2-D coefficient-block array */ - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - JBLOCKARRAY result; - - JBLOCKROW workspace; - - JDIMENSION rowsperchunk, currow, i; - - long ltemp; - - - - /* Calculate max # of rows allowed in one allocation chunk */ - - ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / - - ((long) blocksperrow * SIZEOF(JBLOCK)); - - if (ltemp <= 0) - - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - - if (ltemp < (long) numrows) - - rowsperchunk = (JDIMENSION) ltemp; - - else - - rowsperchunk = numrows; - - mem->last_rowsperchunk = rowsperchunk; - - - - /* Get space for row pointers (small object) */ - - result = (JBLOCKARRAY) alloc_small(cinfo, pool_id, - - (size_t) (numrows * SIZEOF(JBLOCKROW))); - - - - /* Get the rows themselves (large objects) */ - - currow = 0; - - while (currow < numrows) { - - rowsperchunk = MIN(rowsperchunk, numrows - currow); - - workspace = (JBLOCKROW) alloc_large(cinfo, pool_id, - - (size_t) ((size_t) rowsperchunk * (size_t) blocksperrow - - * SIZEOF(JBLOCK))); - - for (i = rowsperchunk; i > 0; i--) { - - result[currow++] = workspace; - - workspace += blocksperrow; - - } - - } - - - - return result; - -} - - - - - -/* - - * About virtual array management: - - * - - * The above "normal" array routines are only used to allocate strip buffers - - * (as wide as the image, but just a few rows high). Full-image-sized buffers - - * are handled as "virtual" arrays. The array is still accessed a strip at a - - * time, but the memory manager must save the whole array for repeated - - * accesses. The intended implementation is that there is a strip buffer in - - * memory (as high as is possible given the desired memory limit), plus a - - * backing file that holds the rest of the array. - - * - - * The request_virt_array routines are told the total size of the image and - - * the maximum number of rows that will be accessed at once. The in-memory - - * buffer must be at least as large as the maxaccess value. - - * - - * The request routines create control blocks but not the in-memory buffers. - - * That is postponed until realize_virt_arrays is called. At that time the - - * total amount of space needed is known (approximately, anyway), so free - - * memory can be divided up fairly. - - * - - * The access_virt_array routines are responsible for making a specific strip - - * area accessible (after reading or writing the backing file, if necessary). - - * Note that the access routines are told whether the caller intends to modify - - * the accessed strip; during a read-only pass this saves having to rewrite - - * data to disk. The access routines are also responsible for pre-zeroing - - * any newly accessed rows, if pre-zeroing was requested. - - * - - * In current usage, the access requests are usually for nonoverlapping - - * strips; that is, successive access start_row numbers differ by exactly - - * num_rows = maxaccess. This means we can get good performance with simple - - * buffer dump/reload logic, by making the in-memory buffer be a multiple - - * of the access height; then there will never be accesses across bufferload - - * boundaries. The code will still work with overlapping access requests, - - * but it doesn't handle bufferload overlaps very efficiently. - - */ - - - - - -METHODDEF jvirt_sarray_ptr - -request_virt_sarray (j_common_ptr cinfo, int pool_id, boolean pre_zero, - - JDIMENSION samplesperrow, JDIMENSION numrows, - - JDIMENSION maxaccess) - -/* Request a virtual 2-D sample array */ - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - jvirt_sarray_ptr result; - - - - /* Only IMAGE-lifetime virtual arrays are currently supported */ - - if (pool_id != JPOOL_IMAGE) - - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - - - /* get control block */ - - result = (jvirt_sarray_ptr) alloc_small(cinfo, pool_id, - - SIZEOF(struct jvirt_sarray_control)); - - - - result->mem_buffer = NULL; /* marks array not yet realized */ - - result->rows_in_array = numrows; - - result->samplesperrow = samplesperrow; - - result->maxaccess = maxaccess; - - result->pre_zero = pre_zero; - - result->b_s_open = FALSE; /* no associated backing-store object */ - - result->next = mem->virt_sarray_list; /* add to list of virtual arrays */ - - mem->virt_sarray_list = result; - - - - return result; - -} - - - - - -METHODDEF jvirt_barray_ptr - -request_virt_barray (j_common_ptr cinfo, int pool_id, boolean pre_zero, - - JDIMENSION blocksperrow, JDIMENSION numrows, - - JDIMENSION maxaccess) - -/* Request a virtual 2-D coefficient-block array */ - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - jvirt_barray_ptr result; - - - - /* Only IMAGE-lifetime virtual arrays are currently supported */ - - if (pool_id != JPOOL_IMAGE) - - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - - - /* get control block */ - - result = (jvirt_barray_ptr) alloc_small(cinfo, pool_id, - - SIZEOF(struct jvirt_barray_control)); - - - - result->mem_buffer = NULL; /* marks array not yet realized */ - - result->rows_in_array = numrows; - - result->blocksperrow = blocksperrow; - - result->maxaccess = maxaccess; - - result->pre_zero = pre_zero; - - result->b_s_open = FALSE; /* no associated backing-store object */ - - result->next = mem->virt_barray_list; /* add to list of virtual arrays */ - - mem->virt_barray_list = result; - - - - return result; - -} - - - - - -METHODDEF void - -realize_virt_arrays (j_common_ptr cinfo) - -/* Allocate the in-memory buffers for any unrealized virtual arrays */ - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - long space_per_minheight, maximum_space, avail_mem; - - long minheights, max_minheights; - - jvirt_sarray_ptr sptr; - - jvirt_barray_ptr bptr; - - - - /* Compute the minimum space needed (maxaccess rows in each buffer) - - * and the maximum space needed (full image height in each buffer). - - * These may be of use to the system-dependent jpeg_mem_available routine. - - */ - - space_per_minheight = 0; - - maximum_space = 0; - - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - - if (sptr->mem_buffer == NULL) { /* if not realized yet */ - - space_per_minheight += (long) sptr->maxaccess * - - (long) sptr->samplesperrow * SIZEOF(JSAMPLE); - - maximum_space += (long) sptr->rows_in_array * - - (long) sptr->samplesperrow * SIZEOF(JSAMPLE); - - } - - } - - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - - if (bptr->mem_buffer == NULL) { /* if not realized yet */ - - space_per_minheight += (long) bptr->maxaccess * - - (long) bptr->blocksperrow * SIZEOF(JBLOCK); - - maximum_space += (long) bptr->rows_in_array * - - (long) bptr->blocksperrow * SIZEOF(JBLOCK); - - } - - } - - - - if (space_per_minheight <= 0) - - return; /* no unrealized arrays, no work */ - - - - /* Determine amount of memory to actually use; this is system-dependent. */ - - avail_mem = jpeg_mem_available(cinfo, space_per_minheight, maximum_space, - - mem->total_space_allocated); - - - - /* If the maximum space needed is available, make all the buffers full - - * height; otherwise parcel it out with the same number of minheights - - * in each buffer. - - */ - - if (avail_mem >= maximum_space) - - max_minheights = 1000000000L; - - else { - - max_minheights = avail_mem / space_per_minheight; - - /* If there doesn't seem to be enough space, try to get the minimum - - * anyway. This allows a "stub" implementation of jpeg_mem_available(). - - */ - - if (max_minheights <= 0) - - max_minheights = 1; - - } - - - - /* Allocate the in-memory buffers and initialize backing store as needed. */ - - - - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - - if (sptr->mem_buffer == NULL) { /* if not realized yet */ - - minheights = ((long) sptr->rows_in_array - 1L) / sptr->maxaccess + 1L; - - if (minheights <= max_minheights) { - - /* This buffer fits in memory */ - - sptr->rows_in_mem = sptr->rows_in_array; - - } else { - - /* It doesn't fit in memory, create backing store. */ - - sptr->rows_in_mem = (JDIMENSION) (max_minheights * sptr->maxaccess); - - jpeg_open_backing_store(cinfo, & sptr->b_s_info, - - (long) sptr->rows_in_array * - - (long) sptr->samplesperrow * - - (long) SIZEOF(JSAMPLE)); - - sptr->b_s_open = TRUE; - - } - - sptr->mem_buffer = alloc_sarray(cinfo, JPOOL_IMAGE, - - sptr->samplesperrow, sptr->rows_in_mem); - - sptr->rowsperchunk = mem->last_rowsperchunk; - - sptr->cur_start_row = 0; - - sptr->first_undef_row = 0; - - sptr->dirty = FALSE; - - } - - } - - - - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - - if (bptr->mem_buffer == NULL) { /* if not realized yet */ - - minheights = ((long) bptr->rows_in_array - 1L) / bptr->maxaccess + 1L; - - if (minheights <= max_minheights) { - - /* This buffer fits in memory */ - - bptr->rows_in_mem = bptr->rows_in_array; - - } else { - - /* It doesn't fit in memory, create backing store. */ - - bptr->rows_in_mem = (JDIMENSION) (max_minheights * bptr->maxaccess); - - jpeg_open_backing_store(cinfo, & bptr->b_s_info, - - (long) bptr->rows_in_array * - - (long) bptr->blocksperrow * - - (long) SIZEOF(JBLOCK)); - - bptr->b_s_open = TRUE; - - } - - bptr->mem_buffer = alloc_barray(cinfo, JPOOL_IMAGE, - - bptr->blocksperrow, bptr->rows_in_mem); - - bptr->rowsperchunk = mem->last_rowsperchunk; - - bptr->cur_start_row = 0; - - bptr->first_undef_row = 0; - - bptr->dirty = FALSE; - - } - - } - -} - - - - - -LOCAL void - -do_sarray_io (j_common_ptr cinfo, jvirt_sarray_ptr ptr, boolean writing) - -/* Do backing store read or write of a virtual sample array */ - -{ - - long bytesperrow, file_offset, byte_count, rows, thisrow, i; - - - - bytesperrow = (long) ptr->samplesperrow * SIZEOF(JSAMPLE); - - file_offset = ptr->cur_start_row * bytesperrow; - - /* Loop to read or write each allocation chunk in mem_buffer */ - - for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { - - /* One chunk, but check for short chunk at end of buffer */ - - rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); - - /* Transfer no more than is currently defined */ - - thisrow = (long) ptr->cur_start_row + i; - - rows = MIN(rows, (long) ptr->first_undef_row - thisrow); - - /* Transfer no more than fits in file */ - - rows = MIN(rows, (long) ptr->rows_in_array - thisrow); - - if (rows <= 0) /* this chunk might be past end of file! */ - - break; - - byte_count = rows * bytesperrow; - - if (writing) - - (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, - - (void FAR *) ptr->mem_buffer[i], - - file_offset, byte_count); - - else - - (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, - - (void FAR *) ptr->mem_buffer[i], - - file_offset, byte_count); - - file_offset += byte_count; - - } - -} - - - - - -LOCAL void - -do_barray_io (j_common_ptr cinfo, jvirt_barray_ptr ptr, boolean writing) - -/* Do backing store read or write of a virtual coefficient-block array */ - -{ - - long bytesperrow, file_offset, byte_count, rows, thisrow, i; - - - - bytesperrow = (long) ptr->blocksperrow * SIZEOF(JBLOCK); - - file_offset = ptr->cur_start_row * bytesperrow; - - /* Loop to read or write each allocation chunk in mem_buffer */ - - for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { - - /* One chunk, but check for short chunk at end of buffer */ - - rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); - - /* Transfer no more than is currently defined */ - - thisrow = (long) ptr->cur_start_row + i; - - rows = MIN(rows, (long) ptr->first_undef_row - thisrow); - - /* Transfer no more than fits in file */ - - rows = MIN(rows, (long) ptr->rows_in_array - thisrow); - - if (rows <= 0) /* this chunk might be past end of file! */ - - break; - - byte_count = rows * bytesperrow; - - if (writing) - - (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, - - (void FAR *) ptr->mem_buffer[i], - - file_offset, byte_count); - - else - - (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, - - (void FAR *) ptr->mem_buffer[i], - - file_offset, byte_count); - - file_offset += byte_count; - - } - -} - - - - - -METHODDEF JSAMPARRAY - -access_virt_sarray (j_common_ptr cinfo, jvirt_sarray_ptr ptr, - - JDIMENSION start_row, JDIMENSION num_rows, - - boolean writable) - -/* Access the part of a virtual sample array starting at start_row */ - -/* and extending for num_rows rows. writable is true if */ - -/* caller intends to modify the accessed area. */ - -{ - - JDIMENSION end_row = start_row + num_rows; - - JDIMENSION undef_row; - - - - /* debugging check */ - - if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || - - ptr->mem_buffer == NULL) - - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - - - /* Make the desired part of the virtual array accessible */ - - if (start_row < ptr->cur_start_row || - - end_row > ptr->cur_start_row+ptr->rows_in_mem) { - - if (! ptr->b_s_open) - - ERREXIT(cinfo, JERR_VIRTUAL_BUG); - - /* Flush old buffer contents if necessary */ - - if (ptr->dirty) { - - do_sarray_io(cinfo, ptr, TRUE); - - ptr->dirty = FALSE; - - } - - /* Decide what part of virtual array to access. - - * Algorithm: if target address > current window, assume forward scan, - - * load starting at target address. If target address < current window, - - * assume backward scan, load so that target area is top of window. - - * Note that when switching from forward write to forward read, will have - - * start_row = 0, so the limiting case applies and we load from 0 anyway. - - */ - - if (start_row > ptr->cur_start_row) { - - ptr->cur_start_row = start_row; - - } else { - - /* use long arithmetic here to avoid overflow & unsigned problems */ - - long ltemp; - - - - ltemp = (long) end_row - (long) ptr->rows_in_mem; - - if (ltemp < 0) - - ltemp = 0; /* don't fall off front end of file */ - - ptr->cur_start_row = (JDIMENSION) ltemp; - - } - - /* Read in the selected part of the array. - - * During the initial write pass, we will do no actual read - - * because the selected part is all undefined. - - */ - - do_sarray_io(cinfo, ptr, FALSE); - - } - - /* Ensure the accessed part of the array is defined; prezero if needed. - - * To improve locality of access, we only prezero the part of the array - - * that the caller is about to access, not the entire in-memory array. - - */ - - if (ptr->first_undef_row < end_row) { - - if (ptr->first_undef_row < start_row) { - - if (writable) /* writer skipped over a section of array */ - - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - undef_row = start_row; /* but reader is allowed to read ahead */ - - } else { - - undef_row = ptr->first_undef_row; - - } - - if (writable) - - ptr->first_undef_row = end_row; - - if (ptr->pre_zero) { - - size_t bytesperrow = (size_t) ptr->samplesperrow * SIZEOF(JSAMPLE); - - undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ - - end_row -= ptr->cur_start_row; - - while (undef_row < end_row) { - - jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); - - undef_row++; - - } - - } else { - - if (! writable) /* reader looking at undefined data */ - - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - } - - } - - /* Flag the buffer dirty if caller will write in it */ - - if (writable) - - ptr->dirty = TRUE; - - /* Return address of proper part of the buffer */ - - return ptr->mem_buffer + (start_row - ptr->cur_start_row); - -} - - - - - -METHODDEF JBLOCKARRAY - -access_virt_barray (j_common_ptr cinfo, jvirt_barray_ptr ptr, - - JDIMENSION start_row, JDIMENSION num_rows, - - boolean writable) - -/* Access the part of a virtual block array starting at start_row */ - -/* and extending for num_rows rows. writable is true if */ - -/* caller intends to modify the accessed area. */ - -{ - - JDIMENSION end_row = start_row + num_rows; - - JDIMENSION undef_row; - - - - /* debugging check */ - - if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || - - ptr->mem_buffer == NULL) - - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - - - /* Make the desired part of the virtual array accessible */ - - if (start_row < ptr->cur_start_row || - - end_row > ptr->cur_start_row+ptr->rows_in_mem) { - - if (! ptr->b_s_open) - - ERREXIT(cinfo, JERR_VIRTUAL_BUG); - - /* Flush old buffer contents if necessary */ - - if (ptr->dirty) { - - do_barray_io(cinfo, ptr, TRUE); - - ptr->dirty = FALSE; - - } - - /* Decide what part of virtual array to access. - - * Algorithm: if target address > current window, assume forward scan, - - * load starting at target address. If target address < current window, - - * assume backward scan, load so that target area is top of window. - - * Note that when switching from forward write to forward read, will have - - * start_row = 0, so the limiting case applies and we load from 0 anyway. - - */ - - if (start_row > ptr->cur_start_row) { - - ptr->cur_start_row = start_row; - - } else { - - /* use long arithmetic here to avoid overflow & unsigned problems */ - - long ltemp; - - - - ltemp = (long) end_row - (long) ptr->rows_in_mem; - - if (ltemp < 0) - - ltemp = 0; /* don't fall off front end of file */ - - ptr->cur_start_row = (JDIMENSION) ltemp; - - } - - /* Read in the selected part of the array. - - * During the initial write pass, we will do no actual read - - * because the selected part is all undefined. - - */ - - do_barray_io(cinfo, ptr, FALSE); - - } - - /* Ensure the accessed part of the array is defined; prezero if needed. - - * To improve locality of access, we only prezero the part of the array - - * that the caller is about to access, not the entire in-memory array. - - */ - - if (ptr->first_undef_row < end_row) { - - if (ptr->first_undef_row < start_row) { - - if (writable) /* writer skipped over a section of array */ - - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - undef_row = start_row; /* but reader is allowed to read ahead */ - - } else { - - undef_row = ptr->first_undef_row; - - } - - if (writable) - - ptr->first_undef_row = end_row; - - if (ptr->pre_zero) { - - size_t bytesperrow = (size_t) ptr->blocksperrow * SIZEOF(JBLOCK); - - undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ - - end_row -= ptr->cur_start_row; - - while (undef_row < end_row) { - - jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); - - undef_row++; - - } - - } else { - - if (! writable) /* reader looking at undefined data */ - - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - } - - } - - /* Flag the buffer dirty if caller will write in it */ - - if (writable) - - ptr->dirty = TRUE; - - /* Return address of proper part of the buffer */ - - return ptr->mem_buffer + (start_row - ptr->cur_start_row); - -} - - - - - -/* - - * Release all objects belonging to a specified pool. - - */ - - - -METHODDEF void - -free_pool (j_common_ptr cinfo, int pool_id) - -{ - - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - - small_pool_ptr shdr_ptr; - - large_pool_ptr lhdr_ptr; - - size_t space_freed; - - - - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - - -#ifdef MEM_STATS - - if (cinfo->err->trace_level > 1) - - print_mem_stats(cinfo, pool_id); /* print pool's memory usage statistics */ - -#endif - - - - /* If freeing IMAGE pool, close any virtual arrays first */ - - if (pool_id == JPOOL_IMAGE) { - - jvirt_sarray_ptr sptr; - - jvirt_barray_ptr bptr; - - - - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - - if (sptr->b_s_open) { /* there may be no backing store */ - - sptr->b_s_open = FALSE; /* prevent recursive close if error */ - - (*sptr->b_s_info.close_backing_store) (cinfo, & sptr->b_s_info); - - } - - } - - mem->virt_sarray_list = NULL; - - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - - if (bptr->b_s_open) { /* there may be no backing store */ - - bptr->b_s_open = FALSE; /* prevent recursive close if error */ - - (*bptr->b_s_info.close_backing_store) (cinfo, & bptr->b_s_info); - - } - - } - - mem->virt_barray_list = NULL; - - } - - - - /* Release large objects */ - - lhdr_ptr = mem->large_list[pool_id]; - - mem->large_list[pool_id] = NULL; - - - - while (lhdr_ptr != NULL) { - - large_pool_ptr next_lhdr_ptr = lhdr_ptr->hdr.next; - - space_freed = lhdr_ptr->hdr.bytes_used + - - lhdr_ptr->hdr.bytes_left + - - SIZEOF(large_pool_hdr); - - jpeg_free_large(cinfo, (void FAR *) lhdr_ptr, space_freed); - - mem->total_space_allocated -= space_freed; - - lhdr_ptr = next_lhdr_ptr; - - } - - - - /* Release small objects */ - - shdr_ptr = mem->small_list[pool_id]; - - mem->small_list[pool_id] = NULL; - - - - while (shdr_ptr != NULL) { - - small_pool_ptr next_shdr_ptr = shdr_ptr->hdr.next; - - space_freed = shdr_ptr->hdr.bytes_used + - - shdr_ptr->hdr.bytes_left + - - SIZEOF(small_pool_hdr); - - jpeg_free_small(cinfo, (void *) shdr_ptr, space_freed); - - mem->total_space_allocated -= space_freed; - - shdr_ptr = next_shdr_ptr; - - } - -} - - - - - -/* - - * Close up shop entirely. - - * Note that this cannot be called unless cinfo->mem is non-NULL. - - */ - - - -METHODDEF void - -self_destruct (j_common_ptr cinfo) - -{ - - int pool; - - - - /* Close all backing store, release all memory. - - * Releasing pools in reverse order might help avoid fragmentation - - * with some (brain-damaged) malloc libraries. - - */ - - for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { - - free_pool(cinfo, pool); - - } - - - - /* Release the memory manager control block too. */ - - jpeg_free_small(cinfo, (void *) cinfo->mem, SIZEOF(my_memory_mgr)); - - cinfo->mem = NULL; /* ensures I will be called only once */ - - - - jpeg_mem_term(cinfo); /* system-dependent cleanup */ - -} - - - - - -/* - - * Memory manager initialization. - - * When this is called, only the error manager pointer is valid in cinfo! - - */ - - - -GLOBAL void - -jinit_memory_mgr (j_common_ptr cinfo) - -{ - - my_mem_ptr mem; - - long max_to_use; - - int pool; - - size_t test_mac; - - - - cinfo->mem = NULL; /* for safety if init fails */ - - - - /* Check for configuration errors. - - * SIZEOF(ALIGN_TYPE) should be a power of 2; otherwise, it probably - - * doesn't reflect any real hardware alignment requirement. - - * The test is a little tricky: for X>0, X and X-1 have no one-bits - - * in common if and only if X is a power of 2, ie has only one one-bit. - - * Some compilers may give an "unreachable code" warning here; ignore it. - - */ - - if ((SIZEOF(ALIGN_TYPE) & (SIZEOF(ALIGN_TYPE)-1)) != 0) - - ERREXIT(cinfo, JERR_BAD_ALIGN_TYPE); - - /* MAX_ALLOC_CHUNK must be representable as type size_t, and must be - - * a multiple of SIZEOF(ALIGN_TYPE). - - * Again, an "unreachable code" warning may be ignored here. - - * But a "constant too large" warning means you need to fix MAX_ALLOC_CHUNK. - - */ - - test_mac = (size_t) MAX_ALLOC_CHUNK; - - if ((long) test_mac != MAX_ALLOC_CHUNK || - - (MAX_ALLOC_CHUNK % SIZEOF(ALIGN_TYPE)) != 0) - - ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); - - - - max_to_use = jpeg_mem_init(cinfo); /* system-dependent initialization */ - - - - /* Attempt to allocate memory manager's control block */ - - mem = (my_mem_ptr) jpeg_get_small(cinfo, SIZEOF(my_memory_mgr)); - - - - if (mem == NULL) { - - jpeg_mem_term(cinfo); /* system-dependent cleanup */ - - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 0); - - } - - - - /* OK, fill in the method pointers */ - - mem->pub.alloc_small = alloc_small; - - mem->pub.alloc_large = alloc_large; - - mem->pub.alloc_sarray = alloc_sarray; - - mem->pub.alloc_barray = alloc_barray; - - mem->pub.request_virt_sarray = request_virt_sarray; - - mem->pub.request_virt_barray = request_virt_barray; - - mem->pub.realize_virt_arrays = realize_virt_arrays; - - mem->pub.access_virt_sarray = access_virt_sarray; - - mem->pub.access_virt_barray = access_virt_barray; - - mem->pub.free_pool = free_pool; - - mem->pub.self_destruct = self_destruct; - - - - /* Initialize working state */ - - mem->pub.max_memory_to_use = max_to_use; - - - - for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { - - mem->small_list[pool] = NULL; - - mem->large_list[pool] = NULL; - - } - - mem->virt_sarray_list = NULL; - - mem->virt_barray_list = NULL; - - - - mem->total_space_allocated = SIZEOF(my_memory_mgr); - - - - /* Declare ourselves open for business */ - - cinfo->mem = & mem->pub; - - - - /* Check for an environment variable JPEGMEM; if found, override the - - * default max_memory setting from jpeg_mem_init. Note that the - - * surrounding application may again override this value. - - * If your system doesn't support getenv(), define NO_GETENV to disable - - * this feature. - - */ - -#ifndef NO_GETENV - - { char * memenv; - - - - if ((memenv = getenv("JPEGMEM")) != NULL) { - - char ch = 'x'; - - - - if (sscanf(memenv, "%ld%c", &max_to_use, &ch) > 0) { - - if (ch == 'm' || ch == 'M') - - max_to_use *= 1000L; - - mem->pub.max_memory_to_use = max_to_use * 1000L; - - } - - } - - } - -#endif - - - -} - diff --git a/libs/jpeg6/jmemnobs.cpp b/libs/jpeg6/jmemnobs.cpp deleted file mode 100644 index bd236e54..00000000 --- a/libs/jpeg6/jmemnobs.cpp +++ /dev/null @@ -1,206 +0,0 @@ -/* - - * jmemnobs.c - - * - - * Copyright (C) 1992-1994, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file provides a really simple implementation of the system- - - * dependent portion of the JPEG memory manager. This implementation - - * assumes that no backing-store files are needed: all required space - - * can be obtained from ri.Malloc(). - - * This is very portable in the sense that it'll compile on almost anything, - - * but you'd better have lots of main memory (or virtual memory) if you want - - * to process big images. - - * Note that the max_memory_to_use option is ignored by this implementation. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - -#include "jmemsys.h" /* import the system-dependent declarations */ - - - -/* - - * Memory allocation and ri.Freeing are controlled by the regular library - - * routines ri.Malloc() and ri.Free(). - - */ - - - -GLOBAL void * - -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) - -{ - - return (void *) malloc(sizeofobject); - -} - - - -GLOBAL void - -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) - -{ - - free(object); - -} - - - - - -/* - - * "Large" objects are treated the same as "small" ones. - - * NB: although we include FAR keywords in the routine declarations, - - * this file won't actually work in 80x86 small/medium model; at least, - - * you probably won't be able to process useful-size images in only 64KB. - - */ - - - -GLOBAL void FAR * - -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) - -{ - - return (void FAR *) malloc(sizeofobject); - -} - - - -GLOBAL void - -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) - -{ - - free(object); - -} - - - - - -/* - - * This routine computes the total memory space available for allocation. - - * Here we always say, "we got all you want bud!" - - */ - - - -GLOBAL long - -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - - long max_bytes_needed, long already_allocated) - -{ - - return max_bytes_needed; - -} - - - - - -/* - - * Backing store (temporary file) management. - - * Since jpeg_mem_available always promised the moon, - - * this should never be called and we can just error out. - - */ - - - -GLOBAL void - -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - - long total_bytes_needed) - -{ - - ERREXIT(cinfo, JERR_NO_BACKING_STORE); - -} - - - - - -/* - - * These routines take care of any system-dependent initialization and - - * cleanup required. Here, there isn't any. - - */ - - - -GLOBAL long - -jpeg_mem_init (j_common_ptr cinfo) - -{ - - return 0; /* just set max_memory_to_use to 0 */ - -} - - - -GLOBAL void - -jpeg_mem_term (j_common_ptr cinfo) - -{ - - /* no work */ - -} - diff --git a/libs/jpeg6/jmemsys.h b/libs/jpeg6/jmemsys.h deleted file mode 100644 index 9c8028bc..00000000 --- a/libs/jpeg6/jmemsys.h +++ /dev/null @@ -1,364 +0,0 @@ -/* - - * jmemsys.h - - * - - * Copyright (C) 1992-1994, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This include file defines the interface between the system-independent - - * and system-dependent portions of the JPEG memory manager. No other - - * modules need include it. (The system-independent portion is jmemmgr.c; - - * there are several different versions of the system-dependent portion.) - - * - - * This file works as-is for the system-dependent memory managers supplied - - * in the IJG distribution. You may need to modify it if you write a - - * custom memory manager. If system-dependent changes are needed in - - * this file, the best method is to #ifdef them based on a configuration - - * symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR. - - */ - - - - - -/* Short forms of external names for systems with brain-damaged linkers. */ - - - -#ifdef NEED_SHORT_EXTERNAL_NAMES - -#define jpeg_get_small jGetSmall - -#define jpeg_free_small jFreeSmall - -#define jpeg_get_large jGetLarge - -#define jpeg_free_large jFreeLarge - -#define jpeg_mem_available jMemAvail - -#define jpeg_open_backing_store jOpenBackStore - -#define jpeg_mem_init jMemInit - -#define jpeg_mem_term jMemTerm - -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - - - - -/* - - * These two functions are used to allocate and release small chunks of - - * memory. (Typically the total amount requested through jpeg_get_small is - - * no more than 20K or so; this will be requested in chunks of a few K each.) - - * Behavior should be the same as for the standard library functions malloc - - * and free; in particular, jpeg_get_small must return NULL on failure. - - * On most systems, these ARE malloc and free. jpeg_free_small is passed the - - * size of the object being freed, just in case it's needed. - - * On an 80x86 machine using small-data memory model, these manage near heap. - - */ - - - -EXTERN void * jpeg_get_small JPP((j_common_ptr cinfo, size_t sizeofobject)); - -EXTERN void jpeg_free_small JPP((j_common_ptr cinfo, void * object, - - size_t sizeofobject)); - - - -/* - - * These two functions are used to allocate and release large chunks of - - * memory (up to the total free space designated by jpeg_mem_available). - - * The interface is the same as above, except that on an 80x86 machine, - - * far pointers are used. On most other machines these are identical to - - * the jpeg_get/free_small routines; but we keep them separate anyway, - - * in case a different allocation strategy is desirable for large chunks. - - */ - - - -EXTERN void FAR * jpeg_get_large JPP((j_common_ptr cinfo,size_t sizeofobject)); - -EXTERN void jpeg_free_large JPP((j_common_ptr cinfo, void FAR * object, - - size_t sizeofobject)); - - - -/* - - * The macro MAX_ALLOC_CHUNK designates the maximum number of bytes that may - - * be requested in a single call to jpeg_get_large (and jpeg_get_small for that - - * matter, but that case should never come into play). This macro is needed - - * to model the 64Kb-segment-size limit of far addressing on 80x86 machines. - - * On those machines, we expect that jconfig.h will provide a proper value. - - * On machines with 32-bit flat address spaces, any large constant may be used. - - * - - * NB: jmemmgr.c expects that MAX_ALLOC_CHUNK will be representable as type - - * size_t and will be a multiple of sizeof(align_type). - - */ - - - -#ifndef MAX_ALLOC_CHUNK /* may be overridden in jconfig.h */ - -#define MAX_ALLOC_CHUNK 1000000000L - -#endif - - - -/* - - * This routine computes the total space still available for allocation by - - * jpeg_get_large. If more space than this is needed, backing store will be - - * used. NOTE: any memory already allocated must not be counted. - - * - - * There is a minimum space requirement, corresponding to the minimum - - * feasible buffer sizes; jmemmgr.c will request that much space even if - - * jpeg_mem_available returns zero. The maximum space needed, enough to hold - - * all working storage in memory, is also passed in case it is useful. - - * Finally, the total space already allocated is passed. If no better - - * method is available, cinfo->mem->max_memory_to_use - already_allocated - - * is often a suitable calculation. - - * - - * It is OK for jpeg_mem_available to underestimate the space available - - * (that'll just lead to more backing-store access than is really necessary). - - * However, an overestimate will lead to failure. Hence it's wise to subtract - - * a slop factor from the true available space. 5% should be enough. - - * - - * On machines with lots of virtual memory, any large constant may be returned. - - * Conversely, zero may be returned to always use the minimum amount of memory. - - */ - - - -EXTERN long jpeg_mem_available JPP((j_common_ptr cinfo, - - long min_bytes_needed, - - long max_bytes_needed, - - long already_allocated)); - - - - - -/* - - * This structure holds whatever state is needed to access a single - - * backing-store object. The read/write/close method pointers are called - - * by jmemmgr.c to manipulate the backing-store object; all other fields - - * are private to the system-dependent backing store routines. - - */ - - - -#define TEMP_NAME_LENGTH 64 /* max length of a temporary file's name */ - - - -#ifdef USE_MSDOS_MEMMGR /* DOS-specific junk */ - - - -typedef unsigned short XMSH; /* type of extended-memory handles */ - -typedef unsigned short EMSH; /* type of expanded-memory handles */ - - - -typedef union { - - short file_handle; /* DOS file handle if it's a temp file */ - - XMSH xms_handle; /* handle if it's a chunk of XMS */ - - EMSH ems_handle; /* handle if it's a chunk of EMS */ - -} handle_union; - - - -#endif /* USE_MSDOS_MEMMGR */ - - - -typedef struct backing_store_struct * backing_store_ptr; - - - -typedef struct backing_store_struct { - - /* Methods for reading/writing/closing this backing-store object */ - - JMETHOD(void, read_backing_store, (j_common_ptr cinfo, - - backing_store_ptr info, - - void FAR * buffer_address, - - long file_offset, long byte_count)); - - JMETHOD(void, write_backing_store, (j_common_ptr cinfo, - - backing_store_ptr info, - - void FAR * buffer_address, - - long file_offset, long byte_count)); - - JMETHOD(void, close_backing_store, (j_common_ptr cinfo, - - backing_store_ptr info)); - - - - /* Private fields for system-dependent backing-store management */ - -#ifdef USE_MSDOS_MEMMGR - - /* For the MS-DOS manager (jmemdos.c), we need: */ - - handle_union handle; /* reference to backing-store storage object */ - - char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */ - -#else - - /* For a typical implementation with temp files, we need: */ - - FILE * temp_file; /* stdio reference to temp file */ - - char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */ - -#endif - -} backing_store_info; - - - -/* - - * Initial opening of a backing-store object. This must fill in the - - * read/write/close pointers in the object. The read/write routines - - * may take an error exit if the specified maximum file size is exceeded. - - * (If jpeg_mem_available always returns a large value, this routine can - - * just take an error exit.) - - */ - - - -EXTERN void jpeg_open_backing_store JPP((j_common_ptr cinfo, - - backing_store_ptr info, - - long total_bytes_needed)); - - - - - -/* - - * These routines take care of any system-dependent initialization and - - * cleanup required. jpeg_mem_init will be called before anything is - - * allocated (and, therefore, nothing in cinfo is of use except the error - - * manager pointer). It should return a suitable default value for - - * max_memory_to_use; this may subsequently be overridden by the surrounding - - * application. (Note that max_memory_to_use is only important if - - * jpeg_mem_available chooses to consult it ... no one else will.) - - * jpeg_mem_term may assume that all requested memory has been freed and that - - * all opened backing-store objects have been closed. - - */ - - - -EXTERN long jpeg_mem_init JPP((j_common_ptr cinfo)); - -EXTERN void jpeg_mem_term JPP((j_common_ptr cinfo)); - diff --git a/libs/jpeg6/jmorecfg.h b/libs/jpeg6/jmorecfg.h deleted file mode 100644 index afb6e26c..00000000 --- a/libs/jpeg6/jmorecfg.h +++ /dev/null @@ -1,693 +0,0 @@ -/* - - * jmorecfg.h - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains additional configuration options that customize the - - * JPEG software for special applications or support machine-dependent - - * optimizations. Most users will not need to touch this file. - - */ - - - - - -/* - - * Define BITS_IN_JSAMPLE as either - - * 8 for 8-bit sample values (the usual setting) - - * 12 for 12-bit sample values - - * Only 8 and 12 are legal data precisions for lossy JPEG according to the - - * JPEG standard, and the IJG code does not support anything else! - - * We do not support run-time selection of data precision, sorry. - - */ - - - -#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */ - - - - - -/* - - * Maximum number of components (color channels) allowed in JPEG image. - - * To meet the letter of the JPEG spec, set this to 255. However, darn - - * few applications need more than 4 channels (maybe 5 for CMYK + alpha - - * mask). We recommend 10 as a reasonable compromise; use 4 if you are - - * really short on memory. (Each allowed component costs a hundred or so - - * bytes of storage, whether actually used in an image or not.) - - */ - - - -#define MAX_COMPONENTS 10 /* maximum number of image components */ - - - - - -/* - - * Basic data types. - - * You may need to change these if you have a machine with unusual data - - * type sizes; for example, "char" not 8 bits, "short" not 16 bits, - - * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, - - * but it had better be at least 16. - - */ - - - -/* Representation of a single sample (pixel element value). - - * We frequently allocate large arrays of these, so it's important to keep - - * them small. But if you have memory to burn and access to char or short - - * arrays is very slow on your hardware, you might want to change these. - - */ - - - -#if BITS_IN_JSAMPLE == 8 - -/* JSAMPLE should be the smallest type that will hold the values 0..255. - - * You can use a signed char by having GETJSAMPLE mask it with 0xFF. - - */ - - - -#ifdef HAVE_UNSIGNED_CHAR - - - -typedef unsigned char JSAMPLE; - -#define GETJSAMPLE(value) ((int) (value)) - - - -#else /* not HAVE_UNSIGNED_CHAR */ - - - -typedef char JSAMPLE; - -#ifdef CHAR_IS_UNSIGNED - -#define GETJSAMPLE(value) ((int) (value)) - -#else - -#define GETJSAMPLE(value) ((int) (value) & 0xFF) - -#endif /* CHAR_IS_UNSIGNED */ - - - -#endif /* HAVE_UNSIGNED_CHAR */ - - - -#define MAXJSAMPLE 255 - -#define CENTERJSAMPLE 128 - - - -#endif /* BITS_IN_JSAMPLE == 8 */ - - - - - -#if BITS_IN_JSAMPLE == 12 - -/* JSAMPLE should be the smallest type that will hold the values 0..4095. - - * On nearly all machines "short" will do nicely. - - */ - - - -typedef short JSAMPLE; - -#define GETJSAMPLE(value) ((int) (value)) - - - -#define MAXJSAMPLE 4095 - -#define CENTERJSAMPLE 2048 - - - -#endif /* BITS_IN_JSAMPLE == 12 */ - - - - - -/* Representation of a DCT frequency coefficient. - - * This should be a signed value of at least 16 bits; "short" is usually OK. - - * Again, we allocate large arrays of these, but you can change to int - - * if you have memory to burn and "short" is really slow. - - */ - - - -typedef short JCOEF; - - - - - -/* Compressed datastreams are represented as arrays of JOCTET. - - * These must be EXACTLY 8 bits wide, at least once they are written to - - * external storage. Note that when using the stdio data source/destination - - * managers, this is also the data type passed to fread/fwrite. - - */ - - - -#ifdef HAVE_UNSIGNED_CHAR - - - -typedef unsigned char JOCTET; - -#define GETJOCTET(value) (value) - - - -#else /* not HAVE_UNSIGNED_CHAR */ - - - -typedef char JOCTET; - -#ifdef CHAR_IS_UNSIGNED - -#define GETJOCTET(value) (value) - -#else - -#define GETJOCTET(value) ((value) & 0xFF) - -#endif /* CHAR_IS_UNSIGNED */ - - - -#endif /* HAVE_UNSIGNED_CHAR */ - - - - - -/* These typedefs are used for various table entries and so forth. - - * They must be at least as wide as specified; but making them too big - - * won't cost a huge amount of memory, so we don't provide special - - * extraction code like we did for JSAMPLE. (In other words, these - - * typedefs live at a different point on the speed/space tradeoff curve.) - - */ - - - -/* UINT8 must hold at least the values 0..255. */ - - - -#ifdef HAVE_UNSIGNED_CHAR - -typedef unsigned char UINT8; - -#else /* not HAVE_UNSIGNED_CHAR */ - -#ifdef CHAR_IS_UNSIGNED - -typedef char UINT8; - -#else /* not CHAR_IS_UNSIGNED */ - -typedef short UINT8; - -#endif /* CHAR_IS_UNSIGNED */ - -#endif /* HAVE_UNSIGNED_CHAR */ - - - -/* UINT16 must hold at least the values 0..65535. */ - - - -#ifdef HAVE_UNSIGNED_SHORT - -typedef unsigned short UINT16; - -#else /* not HAVE_UNSIGNED_SHORT */ - -typedef unsigned int UINT16; - -#endif /* HAVE_UNSIGNED_SHORT */ - - - -/* INT16 must hold at least the values -32768..32767. */ - - - -#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ - -typedef short INT16; - -#endif - - - -/* INT32 must hold at least signed 32-bit values. */ - - - -//#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ - -//typedef long INT32; - -//#endif - - - -/* Datatype used for image dimensions. The JPEG standard only supports - - * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore - - * "unsigned int" is sufficient on all machines. However, if you need to - - * handle larger images and you don't mind deviating from the spec, you - - * can change this datatype. - - */ - - - -typedef unsigned int JDIMENSION; - - - -#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ - - - - - -/* These defines are used in all function definitions and extern declarations. - - * You could modify them if you need to change function linkage conventions. - - * Another application is to make all functions global for use with debuggers - - * or code profilers that require it. - - */ - - - -#define METHODDEF static /* a function called through method pointers */ - -#define LOCAL static /* a function used only in its module */ - -#define GLOBAL /* a function referenced thru EXTERNs */ - -#define EXTERN extern /* a reference to a GLOBAL function */ - - - - - -/* Here is the pseudo-keyword for declaring pointers that must be "far" - - * on 80x86 machines. Most of the specialized coding for 80x86 is handled - - * by just saying "FAR *" where such a pointer is needed. In a few places - - * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol. - - */ - - - -#ifdef NEED_FAR_POINTERS - -#undef FAR - -#define FAR far - -#else - -#undef FAR - -#define FAR - -#endif - - - - - -/* - - * On a few systems, type boolean and/or its values FALSE, TRUE may appear - - * in standard header files. Or you may have conflicts with application- - - * specific header files that you want to include together with these files. - - * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. - - */ - - - -//#ifndef HAVE_BOOLEAN - -//typedef int boolean; - -//#endif - -#ifndef FALSE /* in case these macros already exist */ - -#define FALSE 0 /* values of boolean */ - -#endif - -#ifndef TRUE - -#define TRUE 1 - -#endif - - - - - -/* - - * The remaining options affect code selection within the JPEG library, - - * but they don't need to be visible to most applications using the library. - - * To minimize application namespace pollution, the symbols won't be - - * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. - - */ - - - -#ifdef JPEG_INTERNALS - -#define JPEG_INTERNAL_OPTIONS - -#endif - - - -#ifdef JPEG_INTERNAL_OPTIONS - - - - - -/* - - * These defines indicate whether to include various optional functions. - - * Undefining some of these symbols will produce a smaller but less capable - - * library. Note that you can leave certain source files out of the - - * compilation/linking process if you've #undef'd the corresponding symbols. - - * (You may HAVE to do that if your compiler doesn't like null source files.) - - */ - - - -/* Arithmetic coding is unsupported for legal reasons. Complaints to IBM. */ - - - -/* Capability options common to encoder and decoder: */ - - - -#undef DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ - -#undef DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ - -#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ - - - -/* Encoder capability options: */ - - - -#undef C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ - -#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ - -#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ - -#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ - -/* Note: if you selected 12-bit data precision, it is dangerous to turn off - - * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit - - * precision, so jchuff.c normally uses entropy optimization to compute - - * usable tables for higher precision. If you don't want to do optimization, - - * you'll have to supply different default Huffman tables. - - * The exact same statements apply for progressive JPEG: the default tables - - * don't work for progressive mode. (This may get fixed, however.) - - */ - -#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ - - - -/* Decoder capability options: */ - - - -#undef D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ - -#undef D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ - -#undef D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ - -#undef BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ - -#undef IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ - -#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ - -#undef UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ - -#undef QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ - -#undef QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ - - - -/* more capability options later, no doubt */ - - - - - -/* - - * Ordering of RGB data in scanlines passed to or from the application. - - * If your application wants to deal with data in the order B,G,R, just - - * change these macros. You can also deal with formats such as R,G,B,X - - * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing - - * the offsets will also change the order in which colormap data is organized. - - * RESTRICTIONS: - - * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats. - - * 2. These macros only affect RGB<=>YCbCr color conversion, so they are not - - * useful if you are using JPEG color spaces other than YCbCr or grayscale. - - * 3. The color quantizer modules will not behave desirably if RGB_PIXELSIZE - - * is not 3 (they don't understand about dummy color components!). So you - - * can't use color quantization if you change that value. - - */ - - - -#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ - -#define RGB_GREEN 1 /* Offset of Green */ - -#define RGB_BLUE 2 /* Offset of Blue */ - -// http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=900 -// ydnar: setting this fucks jpeg loading in q3map2, disabling "fix" (3) -#define RGB_PIXELSIZE 4 /* JSAMPLEs per RGB scanline element */ - - - - - -/* Definitions for speed-related optimizations. */ - - - - - -/* If your compiler supports inline functions, define INLINE - - * as the inline keyword; otherwise define it as empty. - - */ - - - -#ifndef INLINE - -#ifdef __GNUC__ /* for instance, GNU C knows about inline */ - -#define INLINE __inline__ - -#endif - -#ifndef INLINE - -#define INLINE /* default is to define it as empty */ - -#endif - -#endif - - - - - -/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying - - * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER - - * as short on such a machine. MULTIPLIER must be at least 16 bits wide. - - */ - - - -#ifndef MULTIPLIER - -#define MULTIPLIER int /* type for fastest integer multiply */ - -#endif - - - - - -/* FAST_FLOAT should be either float or double, whichever is done faster - - * by your compiler. (Note that this type is only used in the floating point - - * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) - - * Typically, float is faster in ANSI C compilers, while double is faster in - - * pre-ANSI compilers (because they insist on converting to double anyway). - - * The code below therefore chooses float if we have ANSI-style prototypes. - - */ - - - -#ifndef FAST_FLOAT - -#ifdef HAVE_PROTOTYPES - -#define FAST_FLOAT float - -#else - -#define FAST_FLOAT double - -#endif - -#endif - - - -#endif /* JPEG_INTERNAL_OPTIONS */ diff --git a/libs/jpeg6/jpeg6.vcproj b/libs/jpeg6/jpeg6.vcproj deleted file mode 100644 index abd17b57..00000000 --- a/libs/jpeg6/jpeg6.vcproj +++ /dev/null @@ -1,113 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/libs/jpeg6/jpegint.h b/libs/jpeg6/jpegint.h deleted file mode 100644 index 9b02525d..00000000 --- a/libs/jpeg6/jpegint.h +++ /dev/null @@ -1,776 +0,0 @@ -/* - - * jpegint.h - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file provides common declarations for the various JPEG modules. - - * These declarations are considered internal to the JPEG library; most - - * applications using the library shouldn't need to include this file. - - */ - - - - - -/* Declarations for both compression & decompression */ - - - -typedef enum { /* Operating modes for buffer controllers */ - - JBUF_PASS_THRU, /* Plain stripwise operation */ - - /* Remaining modes require a full-image buffer to have been created */ - - JBUF_SAVE_SOURCE, /* Run source subobject only, save output */ - - JBUF_CRANK_DEST, /* Run dest subobject only, using saved data */ - - JBUF_SAVE_AND_PASS /* Run both subobjects, save output */ - -} J_BUF_MODE; - - - -/* Values of global_state field (jdapi.c has some dependencies on ordering!) */ - -#define CSTATE_START 100 /* after create_compress */ - -#define CSTATE_SCANNING 101 /* start_compress done, write_scanlines OK */ - -#define CSTATE_RAW_OK 102 /* start_compress done, write_raw_data OK */ - -#define CSTATE_WRCOEFS 103 /* jpeg_write_coefficients done */ - -#define DSTATE_START 200 /* after create_decompress */ - -#define DSTATE_INHEADER 201 /* reading header markers, no SOS yet */ - -#define DSTATE_READY 202 /* found SOS, ready for start_decompress */ - -#define DSTATE_PRELOAD 203 /* reading multiscan file in start_decompress*/ - -#define DSTATE_PRESCAN 204 /* performing dummy pass for 2-pass quant */ - -#define DSTATE_SCANNING 205 /* start_decompress done, read_scanlines OK */ - -#define DSTATE_RAW_OK 206 /* start_decompress done, read_raw_data OK */ - -#define DSTATE_BUFIMAGE 207 /* expecting jpeg_start_output */ - -#define DSTATE_BUFPOST 208 /* looking for SOS/EOI in jpeg_finish_output */ - -#define DSTATE_RDCOEFS 209 /* reading file in jpeg_read_coefficients */ - -#define DSTATE_STOPPING 210 /* looking for EOI in jpeg_finish_decompress */ - - - - - -/* Declarations for compression modules */ - - - -/* Master control module */ - -struct jpeg_comp_master { - - JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo)); - - JMETHOD(void, pass_startup, (j_compress_ptr cinfo)); - - JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); - - - - /* State variables made visible to other modules */ - - boolean call_pass_startup; /* True if pass_startup must be called */ - - boolean is_last_pass; /* True during last pass */ - -}; - - - -/* Main buffer control (downsampled-data buffer) */ - -struct jpeg_c_main_controller { - - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - - JMETHOD(void, process_data, (j_compress_ptr cinfo, - - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - - JDIMENSION in_rows_avail)); - -}; - - - -/* Compression preprocessing (downsampling input buffer control) */ - -struct jpeg_c_prep_controller { - - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - - JMETHOD(void, pre_process_data, (j_compress_ptr cinfo, - - JSAMPARRAY input_buf, - - JDIMENSION *in_row_ctr, - - JDIMENSION in_rows_avail, - - JSAMPIMAGE output_buf, - - JDIMENSION *out_row_group_ctr, - - JDIMENSION out_row_groups_avail)); - -}; - - - -/* Coefficient buffer control */ - -struct jpeg_c_coef_controller { - - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - - JMETHOD(boolean, compress_data, (j_compress_ptr cinfo, - - JSAMPIMAGE input_buf)); - -}; - - - -/* Colorspace conversion */ - -struct jpeg_color_converter { - - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - - JMETHOD(void, color_convert, (j_compress_ptr cinfo, - - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - - JDIMENSION output_row, int num_rows)); - -}; - - - -/* Downsampling */ - -struct jpeg_downsampler { - - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - - JMETHOD(void, downsample, (j_compress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION in_row_index, - - JSAMPIMAGE output_buf, - - JDIMENSION out_row_group_index)); - - - - boolean need_context_rows; /* TRUE if need rows above & below */ - -}; - - - -/* Forward DCT (also controls coefficient quantization) */ - -struct jpeg_forward_dct { - - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - - /* perhaps this should be an array??? */ - - JMETHOD(void, forward_DCT, (j_compress_ptr cinfo, - - jpeg_component_info * compptr, - - JSAMPARRAY sample_data, JBLOCKROW coef_blocks, - - JDIMENSION start_row, JDIMENSION start_col, - - JDIMENSION num_blocks)); - -}; - - - -/* Entropy encoding */ - -struct jpeg_entropy_encoder { - - JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics)); - - JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data)); - - JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); - -}; - - - -/* Marker writing */ - -struct jpeg_marker_writer { - - /* write_any_marker is exported for use by applications */ - - /* Probably only COM and APPn markers should be written */ - - JMETHOD(void, write_any_marker, (j_compress_ptr cinfo, int marker, - - const JOCTET *dataptr, unsigned int datalen)); - - JMETHOD(void, write_file_header, (j_compress_ptr cinfo)); - - JMETHOD(void, write_frame_header, (j_compress_ptr cinfo)); - - JMETHOD(void, write_scan_header, (j_compress_ptr cinfo)); - - JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo)); - - JMETHOD(void, write_tables_only, (j_compress_ptr cinfo)); - -}; - - - - - -/* Declarations for decompression modules */ - - - -/* Master control module */ - -struct jpeg_decomp_master { - - JMETHOD(void, prepare_for_output_pass, (j_decompress_ptr cinfo)); - - JMETHOD(void, finish_output_pass, (j_decompress_ptr cinfo)); - - - - /* State variables made visible to other modules */ - - boolean is_dummy_pass; /* True during 1st pass for 2-pass quant */ - -}; - - - -/* Input control module */ - -struct jpeg_input_controller { - - JMETHOD(int, consume_input, (j_decompress_ptr cinfo)); - - JMETHOD(void, reset_input_controller, (j_decompress_ptr cinfo)); - - JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); - - JMETHOD(void, finish_input_pass, (j_decompress_ptr cinfo)); - - - - /* State variables made visible to other modules */ - - boolean has_multiple_scans; /* True if file has multiple scans */ - - boolean eoi_reached; /* True when EOI has been consumed */ - -}; - - - -/* Main buffer control (downsampled-data buffer) */ - -struct jpeg_d_main_controller { - - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); - - JMETHOD(void, process_data, (j_decompress_ptr cinfo, - - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail)); - -}; - - - -/* Coefficient buffer control */ - -struct jpeg_d_coef_controller { - - JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); - - JMETHOD(int, consume_data, (j_decompress_ptr cinfo)); - - JMETHOD(void, start_output_pass, (j_decompress_ptr cinfo)); - - JMETHOD(int, decompress_data, (j_decompress_ptr cinfo, - - JSAMPIMAGE output_buf)); - - /* Pointer to array of coefficient virtual arrays, or NULL if none */ - - jvirt_barray_ptr *coef_arrays; - -}; - - - -/* Decompression postprocessing (color quantization buffer control) */ - -struct jpeg_d_post_controller { - - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); - - JMETHOD(void, post_process_data, (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, - - JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, - - JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail)); - -}; - - - -/* Marker reading & parsing */ - -struct jpeg_marker_reader { - - JMETHOD(void, reset_marker_reader, (j_decompress_ptr cinfo)); - - /* Read markers until SOS or EOI. - - * Returns same codes as are defined for jpeg_consume_input: - - * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - - */ - - JMETHOD(int, read_markers, (j_decompress_ptr cinfo)); - - /* Read a restart marker --- exported for use by entropy decoder only */ - - jpeg_marker_parser_method read_restart_marker; - - /* Application-overridable marker processing methods */ - - jpeg_marker_parser_method process_COM; - - jpeg_marker_parser_method process_APPn[16]; - - - - /* State of marker reader --- nominally internal, but applications - - * supplying COM or APPn handlers might like to know the state. - - */ - - boolean saw_SOI; /* found SOI? */ - - boolean saw_SOF; /* found SOF? */ - - int next_restart_num; /* next restart number expected (0-7) */ - - unsigned int discarded_bytes; /* # of bytes skipped looking for a marker */ - -}; - - - -/* Entropy decoding */ - -struct jpeg_entropy_decoder { - - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - - JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo, - - JBLOCKROW *MCU_data)); - -}; - - - -/* Inverse DCT (also performs dequantization) */ - -typedef JMETHOD(void, inverse_DCT_method_ptr, - - (j_decompress_ptr cinfo, jpeg_component_info * compptr, - - JCOEFPTR coef_block, - - JSAMPARRAY output_buf, JDIMENSION output_col)); - - - -struct jpeg_inverse_dct { - - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - - /* It is useful to allow each component to have a separate IDCT method. */ - - inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS]; - -}; - - - -/* Upsampling (note that upsampler must also call color converter) */ - -struct jpeg_upsampler { - - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - - JMETHOD(void, upsample, (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, - - JDIMENSION *in_row_group_ctr, - - JDIMENSION in_row_groups_avail, - - JSAMPARRAY output_buf, - - JDIMENSION *out_row_ctr, - - JDIMENSION out_rows_avail)); - - - - boolean need_context_rows; /* TRUE if need rows above & below */ - -}; - - - -/* Colorspace conversion */ - -struct jpeg_color_deconverter { - - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - - JMETHOD(void, color_convert, (j_decompress_ptr cinfo, - - JSAMPIMAGE input_buf, JDIMENSION input_row, - - JSAMPARRAY output_buf, int num_rows)); - -}; - - - -/* Color quantization or color precision reduction */ - -struct jpeg_color_quantizer { - - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan)); - - JMETHOD(void, color_quantize, (j_decompress_ptr cinfo, - - JSAMPARRAY input_buf, JSAMPARRAY output_buf, - - int num_rows)); - - JMETHOD(void, finish_pass, (j_decompress_ptr cinfo)); - - JMETHOD(void, new_color_map, (j_decompress_ptr cinfo)); - -}; - - - - - -/* Miscellaneous useful macros */ - - - -#undef MAX - -#define MAX(a,b) ((a) > (b) ? (a) : (b)) - -#undef MIN - -#define MIN(a,b) ((a) < (b) ? (a) : (b)) - - - - - -/* We assume that right shift corresponds to signed division by 2 with - - * rounding towards minus infinity. This is correct for typical "arithmetic - - * shift" instructions that shift in copies of the sign bit. But some - - * C compilers implement >> with an unsigned shift. For these machines you - - * must define RIGHT_SHIFT_IS_UNSIGNED. - - * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity. - - * It is only applied with constant shift counts. SHIFT_TEMPS must be - - * included in the variables of any routine using RIGHT_SHIFT. - - */ - - - -#ifdef RIGHT_SHIFT_IS_UNSIGNED - -#define SHIFT_TEMPS INT32 shift_temp; - -#define RIGHT_SHIFT(x,shft) \ - - ((shift_temp = (x)) < 0 ? \ - - (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \ - - (shift_temp >> (shft))) - -#else - -#define SHIFT_TEMPS - -#define RIGHT_SHIFT(x,shft) ((x) >> (shft)) - -#endif - - - - - -/* Short forms of external names for systems with brain-damaged linkers. */ - - - -#ifdef NEED_SHORT_EXTERNAL_NAMES - -#define jinit_compress_master jICompress - -#define jinit_c_master_control jICMaster - -#define jinit_c_main_controller jICMainC - -#define jinit_c_prep_controller jICPrepC - -#define jinit_c_coef_controller jICCoefC - -#define jinit_color_converter jICColor - -#define jinit_downsampler jIDownsampler - -#define jinit_forward_dct jIFDCT - -#define jinit_huff_encoder jIHEncoder - -#define jinit_phuff_encoder jIPHEncoder - -#define jinit_marker_writer jIMWriter - -#define jinit_master_decompress jIDMaster - -#define jinit_d_main_controller jIDMainC - -#define jinit_d_coef_controller jIDCoefC - -#define jinit_d_post_controller jIDPostC - -#define jinit_input_controller jIInCtlr - -#define jinit_marker_reader jIMReader - -#define jinit_huff_decoder jIHDecoder - -#define jinit_phuff_decoder jIPHDecoder - -#define jinit_inverse_dct jIIDCT - -#define jinit_upsampler jIUpsampler - -#define jinit_color_deconverter jIDColor - -#define jinit_1pass_quantizer jI1Quant - -#define jinit_2pass_quantizer jI2Quant - -#define jinit_merged_upsampler jIMUpsampler - -#define jinit_memory_mgr jIMemMgr - -#define jdiv_round_up jDivRound - -#define jround_up jRound - -#define jcopy_sample_rows jCopySamples - -#define jcopy_block_row jCopyBlocks - -#define jzero_far jZeroFar - -#define jpeg_zigzag_order jZIGTable - -#define jpeg_natural_order jZAGTable - -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - - - - -/* Compression module initialization routines */ - -EXTERN void jinit_compress_master JPP((j_compress_ptr cinfo)); - -EXTERN void jinit_c_master_control JPP((j_compress_ptr cinfo, - - boolean transcode_only)); - -EXTERN void jinit_c_main_controller JPP((j_compress_ptr cinfo, - - boolean need_full_buffer)); - -EXTERN void jinit_c_prep_controller JPP((j_compress_ptr cinfo, - - boolean need_full_buffer)); - -EXTERN void jinit_c_coef_controller JPP((j_compress_ptr cinfo, - - boolean need_full_buffer)); - -EXTERN void jinit_color_converter JPP((j_compress_ptr cinfo)); - -EXTERN void jinit_downsampler JPP((j_compress_ptr cinfo)); - -EXTERN void jinit_forward_dct JPP((j_compress_ptr cinfo)); - -EXTERN void jinit_huff_encoder JPP((j_compress_ptr cinfo)); - -EXTERN void jinit_phuff_encoder JPP((j_compress_ptr cinfo)); - -EXTERN void jinit_marker_writer JPP((j_compress_ptr cinfo)); - -/* Decompression module initialization routines */ - -EXTERN void jinit_master_decompress JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_d_main_controller JPP((j_decompress_ptr cinfo, - - boolean need_full_buffer)); - -EXTERN void jinit_d_coef_controller JPP((j_decompress_ptr cinfo, - - boolean need_full_buffer)); - -EXTERN void jinit_d_post_controller JPP((j_decompress_ptr cinfo, - - boolean need_full_buffer)); - -EXTERN void jinit_input_controller JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_marker_reader JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_huff_decoder JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_phuff_decoder JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_inverse_dct JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_upsampler JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_color_deconverter JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_1pass_quantizer JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_2pass_quantizer JPP((j_decompress_ptr cinfo)); - -EXTERN void jinit_merged_upsampler JPP((j_decompress_ptr cinfo)); - -/* Memory manager initialization */ - -EXTERN void jinit_memory_mgr JPP((j_common_ptr cinfo)); - - - -/* Utility routines in jutils.c */ - -EXTERN long jdiv_round_up JPP((long a, long b)); - -EXTERN long jround_up JPP((long a, long b)); - -EXTERN void jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row, - - JSAMPARRAY output_array, int dest_row, - - int num_rows, JDIMENSION num_cols)); - -EXTERN void jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row, - - JDIMENSION num_blocks)); - -EXTERN void jzero_far JPP((void FAR * target, size_t bytestozero)); - -/* Constant tables in jutils.c */ - -extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */ - -extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */ - - - -/* Suppress undefined-structure complaints if necessary. */ - - - -#ifdef INCOMPLETE_TYPES_BROKEN - -#ifndef AM_MEMORY_MANAGER /* only jmemmgr.c defines these */ - -struct jvirt_sarray_control { long dummy; }; - -struct jvirt_barray_control { long dummy; }; - -#endif - -#endif /* INCOMPLETE_TYPES_BROKEN */ - diff --git a/libs/jpeg6/jpgload.cpp b/libs/jpeg6/jpgload.cpp deleted file mode 100644 index 02c021f6..00000000 --- a/libs/jpeg6/jpgload.cpp +++ /dev/null @@ -1,167 +0,0 @@ - - -#include "radiant_jpeglib.h" -#include "jerror.h" -#include - -GLOBAL int LoadJPGBuff(unsigned char *fbuffer, int bufsize, unsigned char **pic, int *width, int *height ) -{ - - /* This struct contains the JPEG decompression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - */ - struct jpeg_decompress_struct cinfo; - /* We use our private extension JPEG error handler. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - /* This struct represents a JPEG error handler. It is declared separately - * because applications often want to supply a specialized error handler - * (see the second half of this file for an example). But here we just - * take the easy way out and use the standard error handler, which will - * print a message on stderr and call exit() if compression fails. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - - struct jpeg_error_mgr jerr; - /* More stuff */ - JSAMPARRAY buffer; /* Output row buffer */ - int row_stride; /* physical row width in output buffer */ - unsigned char *out, *bbuf; - int nSize; - int jmpret; - - // Rad additions: initialize the longjmp buffer - jmpret = setjmp( rad_loadfailed ); - if (jmpret != 0) - { - *pic = (unsigned char *)rad_errormsg; - return -1; - } - - /* Step 1: allocate and initialize JPEG decompression object */ - - /* We have to set up the error handler first, in case the initialization - * step fails. (Unlikely, but it could happen if you are out of memory.) - * This routine fills in the contents of struct jerr, and returns jerr's - * address which we place into the link field in cinfo. - */ - cinfo.err = jpeg_std_error(&jerr); - - /* Now we can initialize the JPEG decompression object. */ - jpeg_create_decompress(&cinfo); - - /* Step 2: specify data source (eg, a file) */ - - jpeg_stdio_src(&cinfo, fbuffer, bufsize); - - /* Step 3: read file parameters with jpeg_read_header() */ - - (void) jpeg_read_header(&cinfo, TRUE); - /* We can ignore the return value from jpeg_read_header since - * (a) suspension is not possible with the stdio data source, and - * (b) we passed TRUE to reject a tables-only JPEG file as an error. - * See libjpeg.doc for more info. - */ - - /* Step 4: set parameters for decompression */ - - /* In this example, we don't need to change any of the defaults set by - * jpeg_read_header(), so we do nothing here. - */ - - /* Step 5: Start decompressor */ - - (void) jpeg_start_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* ydnar: radiant only handles RGB, non-progressive format jpegs */ - if( cinfo.output_components != 4 ) - { - *pic = (unsigned char*) "Non-RGB JPEG encountered (unsupported)"; - return -1; - } - if( cinfo.progressive_mode ) - { - *pic = (unsigned char*) "Progressive JPEG encountered (unsupported)"; - return -1; - } - - /* We may need to do some setup of our own at this point before reading - * the data. After jpeg_start_decompress() we have the correct scaled - * output image dimensions available, as well as the output colormap - * if we asked for color quantization. - * In this example, we need to make an output work buffer of the right size. - */ - - /* JSAMPLEs per row in output buffer */ - row_stride = cinfo.output_width * cinfo.output_components; - nSize = cinfo.output_width*cinfo.output_height*cinfo.output_components; - - out = reinterpret_cast( malloc( nSize+ 1 ) ); - memset( out, 255, nSize + 1 ); - - *pic = out; - *width = cinfo.output_width; - *height = cinfo.output_height; - - /* Step 6: while (scan lines remain to be read) */ - /* jpeg_read_scanlines(...); */ - - /* Here we use the library's state variable cinfo.output_scanline as the - * loop counter, so that we don't have to keep track ourselves. - */ - while (cinfo.output_scanline < cinfo.output_height) - { - /* jpeg_read_scanlines expects an array of pointers to scanlines. - * Here the array is only one element long, but you could ask for - * more than one scanline at a time if that's more convenient. - */ - bbuf = out + row_stride * cinfo.output_scanline; - buffer = &bbuf; - (void) jpeg_read_scanlines( &cinfo, buffer, 1 ); - } - - // clear all the alphas to 255 - { - int i, j; - unsigned char *buf; - - buf = *pic; - - j = cinfo.output_width * cinfo.output_height * 4; - for ( i = 3 ; i < j ; i+=4 ) { - buf[i] = 255; - } - } - - /* Step 7: Finish decompression */ - - (void) jpeg_finish_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* Step 8: Release JPEG decompression object */ - - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_decompress(&cinfo); - - /* After finish_decompress, we can close the input file. - * Here we postpone it until after no more JPEG errors are possible, - * so as to simplify the setjmp error logic above. (Actually, I don't - * think that jpeg_destroy can do an error exit, but why assume anything...) - */ - //free (fbuffer); - - /* At this point you may want to check to see whether any corrupt-data - * warnings occurred (test whether jerr.pub.num_warnings is nonzero). - */ - - /* And we're done! */ - return 0; -} - diff --git a/libs/jpeg6/jutils.cpp b/libs/jpeg6/jutils.cpp deleted file mode 100644 index f5454a6e..00000000 --- a/libs/jpeg6/jutils.cpp +++ /dev/null @@ -1,350 +0,0 @@ -/* - - * jutils.c - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains tables and miscellaneous utility routines needed - - * for both compression and decompression. - - * Note we prefix all global names with "j" to minimize conflicts with - - * a surrounding application. - - */ - - - -#define JPEG_INTERNALS - -#include "jinclude.h" - -#include "radiant_jpeglib.h" - - - - - -/* - - * jpeg_zigzag_order[i] is the zigzag-order position of the i'th element - - * of a DCT block read in natural order (left to right, top to bottom). - - */ - - - -const int jpeg_zigzag_order[DCTSIZE2] = { - - 0, 1, 5, 6, 14, 15, 27, 28, - - 2, 4, 7, 13, 16, 26, 29, 42, - - 3, 8, 12, 17, 25, 30, 41, 43, - - 9, 11, 18, 24, 31, 40, 44, 53, - - 10, 19, 23, 32, 39, 45, 52, 54, - - 20, 22, 33, 38, 46, 51, 55, 60, - - 21, 34, 37, 47, 50, 56, 59, 61, - - 35, 36, 48, 49, 57, 58, 62, 63 - -}; - - - -/* - - * jpeg_natural_order[i] is the natural-order position of the i'th element - - * of zigzag order. - - * - - * When reading corrupted data, the Huffman decoders could attempt - - * to reference an entry beyond the end of this array (if the decoded - - * zero run length reaches past the end of the block). To prevent - - * wild stores without adding an inner-loop test, we put some extra - - * "63"s after the real entries. This will cause the extra coefficient - - * to be stored in location 63 of the block, not somewhere random. - - * The worst case would be a run-length of 15, which means we need 16 - - * fake entries. - - */ - - - -const int jpeg_natural_order[DCTSIZE2+16] = { - - 0, 1, 8, 16, 9, 2, 3, 10, - - 17, 24, 32, 25, 18, 11, 4, 5, - - 12, 19, 26, 33, 40, 48, 41, 34, - - 27, 20, 13, 6, 7, 14, 21, 28, - - 35, 42, 49, 56, 57, 50, 43, 36, - - 29, 22, 15, 23, 30, 37, 44, 51, - - 58, 59, 52, 45, 38, 31, 39, 46, - - 53, 60, 61, 54, 47, 55, 62, 63, - - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - - 63, 63, 63, 63, 63, 63, 63, 63 - -}; - - - - - -/* - - * Arithmetic utilities - - */ - - - -GLOBAL long - -jdiv_round_up (long a, long b) - -/* Compute a/b rounded up to next integer, ie, ceil(a/b) */ - -/* Assumes a >= 0, b > 0 */ - -{ - - return (a + b - 1L) / b; - -} - - - - - -GLOBAL long - -jround_up (long a, long b) - -/* Compute a rounded up to next multiple of b, ie, ceil(a/b)*b */ - -/* Assumes a >= 0, b > 0 */ - -{ - - a += b - 1L; - - return a - (a % b); - -} - - - - - -/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays - - * and coefficient-block arrays. This won't work on 80x86 because the arrays - - * are FAR and we're assuming a small-pointer memory model. However, some - - * DOS compilers provide far-pointer versions of memcpy() and memset() even - - * in the small-model libraries. These will be used if USE_FMEM is defined. - - * Otherwise, the routines below do it the hard way. (The performance cost - - * is not all that great, because these routines aren't very heavily used.) - - */ - - - -#ifndef NEED_FAR_POINTERS /* normal case, same as regular macros */ - -#define FMEMCOPY(dest,src,size) MEMCOPY(dest,src,size) - -#define FMEMZERO(target,size) MEMZERO(target,size) - -#else /* 80x86 case, define if we can */ - -#ifdef USE_FMEM - -#define FMEMCOPY(dest,src,size) _fmemcpy((void FAR *)(dest), (const void FAR *)(src), (size_t)(size)) - -#define FMEMZERO(target,size) _fmemset((void FAR *)(target), 0, (size_t)(size)) - -#endif - -#endif - - - - - -GLOBAL void - -jcopy_sample_rows (JSAMPARRAY input_array, int source_row, - - JSAMPARRAY output_array, int dest_row, - - int num_rows, JDIMENSION num_cols) - -/* Copy some rows of samples from one place to another. - - * num_rows rows are copied from input_array[source_row++] - - * to output_array[dest_row++]; these areas may overlap for duplication. - - * The source and destination arrays must be at least as wide as num_cols. - - */ - -{ - - register JSAMPROW inptr, outptr; - -#ifdef FMEMCOPY - - register size_t count = (size_t) (num_cols * SIZEOF(JSAMPLE)); - -#else - - register JDIMENSION count; - -#endif - - register int row; - - - - input_array += source_row; - - output_array += dest_row; - - - - for (row = num_rows; row > 0; row--) { - - inptr = *input_array++; - - outptr = *output_array++; - -#ifdef FMEMCOPY - - FMEMCOPY(outptr, inptr, count); - -#else - - for (count = num_cols; count > 0; count--) - - *outptr++ = *inptr++; /* needn't bother with GETJSAMPLE() here */ - -#endif - - } - -} - - - - - -GLOBAL void - -jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row, - - JDIMENSION num_blocks) - -/* Copy a row of coefficient blocks from one place to another. */ - -{ - -#ifdef FMEMCOPY - - FMEMCOPY(output_row, input_row, num_blocks * (DCTSIZE2 * SIZEOF(JCOEF))); - -#else - - register JCOEFPTR inptr, outptr; - - register long count; - - - - inptr = (JCOEFPTR) input_row; - - outptr = (JCOEFPTR) output_row; - - for (count = (long) num_blocks * DCTSIZE2; count > 0; count--) { - - *outptr++ = *inptr++; - - } - -#endif - -} - - - - - -GLOBAL void - -jzero_far (void FAR * target, size_t bytestozero) - -/* Zero out a chunk of FAR memory. */ - -/* This might be sample-array data, block-array data, or alloc_large data. */ - -{ - -#ifdef FMEMZERO - - FMEMZERO(target, bytestozero); - -#else - - register char FAR * ptr = (char FAR *) target; - - register size_t count; - - - - for (count = bytestozero; count > 0; count--) { - - *ptr++ = 0; - - } - -#endif - -} - diff --git a/libs/jpeg6/jversion.h b/libs/jpeg6/jversion.h deleted file mode 100644 index 784a088c..00000000 --- a/libs/jpeg6/jversion.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - - * jversion.h - - * - - * Copyright (C) 1991-1995, Thomas G. Lane. - - * This file is part of the Independent JPEG Group's software. - - * For conditions of distribution and use, see the accompanying README file. - - * - - * This file contains software version identification. - - */ - - - - - -#define JVERSION "6 2-Aug-95" - - - -#define JCOPYRIGHT "Copyright (C) 1995, Thomas G. Lane" - diff --git a/libs/radiant_jpeglib.h b/libs/radiant_jpeglib.h deleted file mode 100644 index 7dece342..00000000 --- a/libs/radiant_jpeglib.h +++ /dev/null @@ -1,1123 +0,0 @@ -/* -Copyright (C) 1999-2007 id Software, Inc. and contributors. -For a list of contributors, see the accompanying CONTRIBUTORS file. - -This file is part of GtkRadiant. - -GtkRadiant is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -GtkRadiant is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GtkRadiant; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -*/ - -/* - * jpeglib.h - * - * Copyright (C) 1991-1995, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the application interface for the JPEG library. - * Most applications using the library need only include this file, - * and perhaps jerror.h if they want to know the exact error codes. - */ - -#ifndef JPEGLIB_H -#define JPEGLIB_H - -#ifdef __cplusplus -extern "C" -{ -#endif - -// LZ: linux stuff -#if defined (__linux__) || defined (__APPLE__) - -#include -#include - -#ifndef boolean -#ifdef __cplusplus -#define boolean bool -#else -typedef int boolean; -#endif -#endif - -#endif - -#ifdef __MACOS__ - -// JDC: stuff to make mac version compile -#define boolean qboolean -#define register -#define INT32 int - -#endif - -// rad additions -// 11.29.99 - -//#include "cmdlib.h" -#ifdef _WIN32 -#include "windows.h" -#include "stdio.h" -#endif - -#ifndef INT32 -#define INT32 int -#endif - -// TTimo: if LoadJPGBuff returns -1, *pic is the error message -extern int LoadJPGBuff(unsigned char *fbuffer, int bufsize, unsigned char **pic, int *width, int *height ); -// rad end - - -/* - * First we include the configuration files that record how this - * installation of the JPEG library is set up. jconfig.h can be - * generated automatically for many systems. jmorecfg.h contains - * manual configuration options that most people need not worry about. - */ - -#ifndef JCONFIG_INCLUDED /* in case jinclude.h already did */ -#include "jpeg6/jconfig.h" /* widely used configuration options */ -#endif -#include "jpeg6/jmorecfg.h" /* seldom changed options */ - - -/* Version ID for the JPEG library. - * Might be useful for tests like "#if JPEG_LIB_VERSION >= 60". - */ - -#define JPEG_LIB_VERSION 60 /* Version 6 */ - - -/* Various constants determining the sizes of things. - * All of these are specified by the JPEG standard, so don't change them - * if you want to be compatible. - */ - -#define DCTSIZE 8 /* The basic DCT block is 8x8 samples */ -#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ -#define NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */ -#define NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */ -#define NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */ -#define MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */ -#define MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */ -/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard; - * the PostScript DCT filter can emit files with many more than 10 blocks/MCU. - * If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU - * to handle it. We even let you do this from the jconfig.h file. However, - * we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe - * sometimes emits noncompliant files doesn't mean you should too. - */ -#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */ -#ifndef D_MAX_BLOCKS_IN_MCU -#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */ -#endif - - -/* This macro is used to declare a "method", that is, a function pointer. - * We want to supply prototype parameters if the compiler can cope. - * Note that the arglist parameter must be parenthesized! - */ - -#ifdef HAVE_PROTOTYPES -#define JMETHOD(type,methodname,arglist) type (*methodname) arglist -#else -#define JMETHOD(type,methodname,arglist) type (*methodname) () -#endif - - -/* Data structures for images (arrays of samples and of DCT coefficients). - * On 80x86 machines, the image arrays are too big for near pointers, - * but the pointer arrays can fit in near memory. - */ - -typedef JSAMPLE FAR *JSAMPROW; /* ptr to one image row of pixel samples. */ -typedef JSAMPROW *JSAMPARRAY; /* ptr to some rows (a 2-D sample array) */ -typedef JSAMPARRAY *JSAMPIMAGE; /* a 3-D sample array: top index is color */ - -typedef JCOEF JBLOCK[DCTSIZE2]; /* one block of coefficients */ -typedef JBLOCK FAR *JBLOCKROW; /* pointer to one row of coefficient blocks */ -typedef JBLOCKROW *JBLOCKARRAY; /* a 2-D array of coefficient blocks */ -typedef JBLOCKARRAY *JBLOCKIMAGE; /* a 3-D array of coefficient blocks */ - -typedef JCOEF FAR *JCOEFPTR; /* useful in a couple of places */ - - -/* Types for JPEG compression parameters and working tables. */ - - -/* DCT coefficient quantization tables. */ - -typedef struct { - /* This field directly represents the contents of a JPEG DQT marker. - * Note: the values are always given in zigzag order. - */ - UINT16 quantval[DCTSIZE2]; /* quantization step for each coefficient */ - /* This field is used only during compression. It's initialized FALSE when - * the table is created, and set TRUE when it's been output to the file. - * You could suppress output of a table by setting this to TRUE. - * (See jpeg_suppress_tables for an example.) - */ - boolean sent_table; /* TRUE when table has been output */ -} JQUANT_TBL; - - -/* Huffman coding tables. */ - -typedef struct { - /* These two fields directly represent the contents of a JPEG DHT marker */ - UINT8 bits[17]; /* bits[k] = # of symbols with codes of */ - /* length k bits; bits[0] is unused */ - UINT8 huffval[256]; /* The symbols, in order of incr code length */ - /* This field is used only during compression. It's initialized FALSE when - * the table is created, and set TRUE when it's been output to the file. - * You could suppress output of a table by setting this to TRUE. - * (See jpeg_suppress_tables for an example.) - */ - boolean sent_table; /* TRUE when table has been output */ -} JHUFF_TBL; - - -/* Basic info about one component (color channel). */ - -typedef struct { - /* These values are fixed over the whole image. */ - /* For compression, they must be supplied by parameter setup; */ - /* for decompression, they are read from the SOF marker. */ - int component_id; /* identifier for this component (0..255) */ - int component_index; /* its index in SOF or cinfo->comp_info[] */ - int h_samp_factor; /* horizontal sampling factor (1..4) */ - int v_samp_factor; /* vertical sampling factor (1..4) */ - int quant_tbl_no; /* quantization table selector (0..3) */ - /* These values may vary between scans. */ - /* For compression, they must be supplied by parameter setup; */ - /* for decompression, they are read from the SOS marker. */ - /* The decompressor output side may not use these variables. */ - int dc_tbl_no; /* DC entropy table selector (0..3) */ - int ac_tbl_no; /* AC entropy table selector (0..3) */ - - /* Remaining fields should be treated as private by applications. */ - - /* These values are computed during compression or decompression startup: */ - /* Component's size in DCT blocks. - * Any dummy blocks added to complete an MCU are not counted; therefore - * these values do not depend on whether a scan is interleaved or not. - */ - JDIMENSION width_in_blocks; - JDIMENSION height_in_blocks; - /* Size of a DCT block in samples. Always DCTSIZE for compression. - * For decompression this is the size of the output from one DCT block, - * reflecting any scaling we choose to apply during the IDCT step. - * Values of 1,2,4,8 are likely to be supported. Note that different - * components may receive different IDCT scalings. - */ - int DCT_scaled_size; - /* The downsampled dimensions are the component's actual, unpadded number - * of samples at the main buffer (preprocessing/compression interface), thus - * downsampled_width = ceil(image_width * Hi/Hmax) - * and similarly for height. For decompression, IDCT scaling is included, so - * downsampled_width = ceil(image_width * Hi/Hmax * DCT_scaled_size/DCTSIZE) - */ - JDIMENSION downsampled_width; /* actual width in samples */ - JDIMENSION downsampled_height; /* actual height in samples */ - /* This flag is used only for decompression. In cases where some of the - * components will be ignored (eg grayscale output from YCbCr image), - * we can skip most computations for the unused components. - */ - boolean component_needed; /* do we need the value of this component? */ - - /* These values are computed before starting a scan of the component. */ - /* The decompressor output side may not use these variables. */ - int MCU_width; /* number of blocks per MCU, horizontally */ - int MCU_height; /* number of blocks per MCU, vertically */ - int MCU_blocks; /* MCU_width * MCU_height */ - int MCU_sample_width; /* MCU width in samples, MCU_width*DCT_scaled_size */ - int last_col_width; /* # of non-dummy blocks across in last MCU */ - int last_row_height; /* # of non-dummy blocks down in last MCU */ - - /* Saved quantization table for component; NULL if none yet saved. - * See jdinput.c comments about the need for this information. - * This field is not currently used by the compressor. - */ - JQUANT_TBL * quant_table; - - /* Private per-component storage for DCT or IDCT subsystem. */ - void * dct_table; -} jpeg_component_info; - - -/* The script for encoding a multiple-scan file is an array of these: */ - -typedef struct { - int comps_in_scan; /* number of components encoded in this scan */ - int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */ - int Ss, Se; /* progressive JPEG spectral selection parms */ - int Ah, Al; /* progressive JPEG successive approx. parms */ -} jpeg_scan_info; - - -/* Known color spaces. */ - -typedef enum { - JCS_UNKNOWN, /* error/unspecified */ - JCS_GRAYSCALE, /* monochrome */ - JCS_RGB, /* red/green/blue */ - JCS_YCbCr, /* Y/Cb/Cr (also known as YUV) */ - JCS_CMYK, /* C/M/Y/K */ - JCS_YCCK /* Y/Cb/Cr/K */ -} J_COLOR_SPACE; - -/* DCT/IDCT algorithm options. */ - -typedef enum { - JDCT_ISLOW, /* slow but accurate integer algorithm */ - JDCT_IFAST, /* faster, less accurate integer method */ - JDCT_FLOAT /* floating-point: accurate, fast on fast HW */ -} J_DCT_METHOD; - -#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */ -#define JDCT_DEFAULT JDCT_ISLOW -#endif -#ifndef JDCT_FASTEST /* may be overridden in jconfig.h */ -#define JDCT_FASTEST JDCT_IFAST -#endif - -/* Dithering options for decompression. */ - -typedef enum { - JDITHER_NONE, /* no dithering */ - JDITHER_ORDERED, /* simple ordered dither */ - JDITHER_FS /* Floyd-Steinberg error diffusion dither */ -} J_DITHER_MODE; - - -/* Common fields between JPEG compression and decompression master structs. */ - -#define jpeg_common_fields \ - struct jpeg_error_mgr * err; /* Error handler module */\ - struct jpeg_memory_mgr * mem; /* Memory manager module */\ - struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\ - boolean is_decompressor; /* so common code can tell which is which */\ - int global_state /* for checking call sequence validity */ - -/* Routines that are to be used by both halves of the library are declared - * to receive a pointer to this structure. There are no actual instances of - * jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct. - */ -struct jpeg_common_struct { - jpeg_common_fields; /* Fields common to both master struct types */ - /* Additional fields follow in an actual jpeg_compress_struct or - * jpeg_decompress_struct. All three structs must agree on these - * initial fields! (This would be a lot cleaner in C++.) - */ -}; - -typedef struct jpeg_common_struct * j_common_ptr; -typedef struct jpeg_compress_struct * j_compress_ptr; -typedef struct jpeg_decompress_struct * j_decompress_ptr; - - -/* Master record for a compression instance */ - -struct jpeg_compress_struct { - jpeg_common_fields; /* Fields shared with jpeg_decompress_struct */ - - /* Destination for compressed data */ - struct jpeg_destination_mgr * dest; - - /* Description of source image --- these fields must be filled in by - * outer application before starting compression. in_color_space must - * be correct before you can even call jpeg_set_defaults(). - */ - - JDIMENSION image_width; /* input image width */ - JDIMENSION image_height; /* input image height */ - int input_components; /* # of color components in input image */ - J_COLOR_SPACE in_color_space; /* colorspace of input image */ - - double input_gamma; /* image gamma of input image */ - - /* Compression parameters --- these fields must be set before calling - * jpeg_start_compress(). We recommend calling jpeg_set_defaults() to - * initialize everything to reasonable defaults, then changing anything - * the application specifically wants to change. That way you won't get - * burnt when new parameters are added. Also note that there are several - * helper routines to simplify changing parameters. - */ - - int data_precision; /* bits of precision in image data */ - - int num_components; /* # of color components in JPEG image */ - J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ - - jpeg_component_info * comp_info; - /* comp_info[i] describes component that appears i'th in SOF */ - - JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; - /* ptrs to coefficient quantization tables, or NULL if not defined */ - - JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; - JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; - /* ptrs to Huffman coding tables, or NULL if not defined */ - - UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ - UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ - UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ - - int num_scans; /* # of entries in scan_info array */ - const jpeg_scan_info * scan_info; /* script for multi-scan file, or NULL */ - /* The default value of scan_info is NULL, which causes a single-scan - * sequential JPEG file to be emitted. To create a multi-scan file, - * set num_scans and scan_info to point to an array of scan definitions. - */ - - boolean raw_data_in; /* TRUE=caller supplies downsampled data */ - boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ - boolean optimize_coding; /* TRUE=optimize entropy encoding parms */ - boolean CCIR601_sampling; /* TRUE=first samples are cosited */ - int smoothing_factor; /* 1..100, or 0 for no input smoothing */ - J_DCT_METHOD dct_method; /* DCT algorithm selector */ - - /* The restart interval can be specified in absolute MCUs by setting - * restart_interval, or in MCU rows by setting restart_in_rows - * (in which case the correct restart_interval will be figured - * for each scan). - */ - unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */ - int restart_in_rows; /* if > 0, MCU rows per restart interval */ - - /* Parameters controlling emission of special markers. */ - - boolean write_JFIF_header; /* should a JFIF marker be written? */ - /* These three values are not used by the JPEG code, merely copied */ - /* into the JFIF APP0 marker. density_unit can be 0 for unknown, */ - /* 1 for dots/inch, or 2 for dots/cm. Note that the pixel aspect */ - /* ratio is defined by X_density/Y_density even when density_unit=0. */ - UINT8 density_unit; /* JFIF code for pixel size units */ - UINT16 X_density; /* Horizontal pixel density */ - UINT16 Y_density; /* Vertical pixel density */ - boolean write_Adobe_marker; /* should an Adobe marker be written? */ - - /* State variable: index of next scanline to be written to - * jpeg_write_scanlines(). Application may use this to control its - * processing loop, e.g., "while (next_scanline < image_height)". - */ - - JDIMENSION next_scanline; /* 0 .. image_height-1 */ - - /* Remaining fields are known throughout compressor, but generally - * should not be touched by a surrounding application. - */ - - /* - * These fields are computed during compression startup - */ - boolean progressive_mode; /* TRUE if scan script uses progressive mode */ - int max_h_samp_factor; /* largest h_samp_factor */ - int max_v_samp_factor; /* largest v_samp_factor */ - - JDIMENSION total_iMCU_rows; /* # of iMCU rows to be input to coef ctlr */ - /* The coefficient controller receives data in units of MCU rows as defined - * for fully interleaved scans (whether the JPEG file is interleaved or not). - * There are v_samp_factor * DCTSIZE sample rows of each component in an - * "iMCU" (interleaved MCU) row. - */ - - /* - * These fields are valid during any one scan. - * They describe the components and MCUs actually appearing in the scan. - */ - int comps_in_scan; /* # of JPEG components in this scan */ - jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; - /* *cur_comp_info[i] describes component that appears i'th in SOS */ - - JDIMENSION MCUs_per_row; /* # of MCUs across the image */ - JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ - - int blocks_in_MCU; /* # of DCT blocks per MCU */ - int MCU_membership[C_MAX_BLOCKS_IN_MCU]; - /* MCU_membership[i] is index in cur_comp_info of component owning */ - /* i'th block in an MCU */ - - int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ - - /* - * Links to compression subobjects (methods and private variables of modules) - */ - struct jpeg_comp_master * master; - struct jpeg_c_main_controller * main; - struct jpeg_c_prep_controller * prep; - struct jpeg_c_coef_controller * coef; - struct jpeg_marker_writer * marker; - struct jpeg_color_converter * cconvert; - struct jpeg_downsampler * downsample; - struct jpeg_forward_dct * fdct; - struct jpeg_entropy_encoder * entropy; -}; - - -/* Master record for a decompression instance */ - -struct jpeg_decompress_struct { - jpeg_common_fields; /* Fields shared with jpeg_compress_struct */ - - /* Source of compressed data */ - struct jpeg_source_mgr * src; - - /* Basic description of image --- filled in by jpeg_read_header(). */ - /* Application may inspect these values to decide how to process image. */ - - JDIMENSION image_width; /* nominal image width (from SOF marker) */ - JDIMENSION image_height; /* nominal image height */ - int num_components; /* # of color components in JPEG image */ - J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ - - /* Decompression processing parameters --- these fields must be set before - * calling jpeg_start_decompress(). Note that jpeg_read_header() initializes - * them to default values. - */ - - J_COLOR_SPACE out_color_space; /* colorspace for output */ - - unsigned int scale_num, scale_denom; /* fraction by which to scale image */ - - double output_gamma; /* image gamma wanted in output */ - - boolean buffered_image; /* TRUE=multiple output passes */ - boolean raw_data_out; /* TRUE=downsampled data wanted */ - - J_DCT_METHOD dct_method; /* IDCT algorithm selector */ - boolean do_fancy_upsampling; /* TRUE=apply fancy upsampling */ - boolean do_block_smoothing; /* TRUE=apply interblock smoothing */ - - boolean quantize_colors; /* TRUE=colormapped output wanted */ - /* the following are ignored if not quantize_colors: */ - J_DITHER_MODE dither_mode; /* type of color dithering to use */ - boolean two_pass_quantize; /* TRUE=use two-pass color quantization */ - int desired_number_of_colors; /* max # colors to use in created colormap */ - /* these are significant only in buffered-image mode: */ - boolean enable_1pass_quant; /* enable future use of 1-pass quantizer */ - boolean enable_external_quant;/* enable future use of external colormap */ - boolean enable_2pass_quant; /* enable future use of 2-pass quantizer */ - - /* Description of actual output image that will be returned to application. - * These fields are computed by jpeg_start_decompress(). - * You can also use jpeg_calc_output_dimensions() to determine these values - * in advance of calling jpeg_start_decompress(). - */ - - JDIMENSION output_width; /* scaled image width */ - JDIMENSION output_height; /* scaled image height */ - int out_color_components; /* # of color components in out_color_space */ - int output_components; /* # of color components returned */ - /* output_components is 1 (a colormap index) when quantizing colors; - * otherwise it equals out_color_components. - */ - int rec_outbuf_height; /* min recommended height of scanline buffer */ - /* If the buffer passed to jpeg_read_scanlines() is less than this many rows - * high, space and time will be wasted due to unnecessary data copying. - * Usually rec_outbuf_height will be 1 or 2, at most 4. - */ - - /* When quantizing colors, the output colormap is described by these fields. - * The application can supply a colormap by setting colormap non-NULL before - * calling jpeg_start_decompress; otherwise a colormap is created during - * jpeg_start_decompress or jpeg_start_output. - * The map has out_color_components rows and actual_number_of_colors columns. - */ - int actual_number_of_colors; /* number of entries in use */ - JSAMPARRAY colormap; /* The color map as a 2-D pixel array */ - - /* State variables: these variables indicate the progress of decompression. - * The application may examine these but must not modify them. - */ - - /* Row index of next scanline to be read from jpeg_read_scanlines(). - * Application may use this to control its processing loop, e.g., - * "while (output_scanline < output_height)". - */ - JDIMENSION output_scanline; /* 0 .. output_height-1 */ - - /* Current input scan number and number of iMCU rows completed in scan. - * These indicate the progress of the decompressor input side. - */ - int input_scan_number; /* Number of SOS markers seen so far */ - JDIMENSION input_iMCU_row; /* Number of iMCU rows completed */ - - /* The "output scan number" is the notional scan being displayed by the - * output side. The decompressor will not allow output scan/row number - * to get ahead of input scan/row, but it can fall arbitrarily far behind. - */ - int output_scan_number; /* Nominal scan number being displayed */ - JDIMENSION output_iMCU_row; /* Number of iMCU rows read */ - - /* Current progression status. coef_bits[c][i] indicates the precision - * with which component c's DCT coefficient i (in zigzag order) is known. - * It is -1 when no data has yet been received, otherwise it is the point - * transform (shift) value for the most recent scan of the coefficient - * (thus, 0 at completion of the progression). - * This pointer is NULL when reading a non-progressive file. - */ - int (*coef_bits)[DCTSIZE2]; /* -1 or current Al value for each coef */ - - /* Internal JPEG parameters --- the application usually need not look at - * these fields. Note that the decompressor output side may not use - * any parameters that can change between scans. - */ - - /* Quantization and Huffman tables are carried forward across input - * datastreams when processing abbreviated JPEG datastreams. - */ - - JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; - /* ptrs to coefficient quantization tables, or NULL if not defined */ - - JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; - JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; - /* ptrs to Huffman coding tables, or NULL if not defined */ - - /* These parameters are never carried across datastreams, since they - * are given in SOF/SOS markers or defined to be reset by SOI. - */ - - int data_precision; /* bits of precision in image data */ - - jpeg_component_info * comp_info; - /* comp_info[i] describes component that appears i'th in SOF */ - - boolean progressive_mode; /* TRUE if SOFn specifies progressive mode */ - boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ - - UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ - UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ - UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ - - unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */ - - /* These fields record data obtained from optional markers recognized by - * the JPEG library. - */ - boolean saw_JFIF_marker; /* TRUE iff a JFIF APP0 marker was found */ - /* Data copied from JFIF marker: */ - UINT8 density_unit; /* JFIF code for pixel size units */ - UINT16 X_density; /* Horizontal pixel density */ - UINT16 Y_density; /* Vertical pixel density */ - boolean saw_Adobe_marker; /* TRUE iff an Adobe APP14 marker was found */ - UINT8 Adobe_transform; /* Color transform code from Adobe marker */ - - boolean CCIR601_sampling; /* TRUE=first samples are cosited */ - - /* Remaining fields are known throughout decompressor, but generally - * should not be touched by a surrounding application. - */ - - /* - * These fields are computed during decompression startup - */ - int max_h_samp_factor; /* largest h_samp_factor */ - int max_v_samp_factor; /* largest v_samp_factor */ - - int min_DCT_scaled_size; /* smallest DCT_scaled_size of any component */ - - JDIMENSION total_iMCU_rows; /* # of iMCU rows in image */ - /* The coefficient controller's input and output progress is measured in - * units of "iMCU" (interleaved MCU) rows. These are the same as MCU rows - * in fully interleaved JPEG scans, but are used whether the scan is - * interleaved or not. We define an iMCU row as v_samp_factor DCT block - * rows of each component. Therefore, the IDCT output contains - * v_samp_factor*DCT_scaled_size sample rows of a component per iMCU row. - */ - - JSAMPLE * sample_range_limit; /* table for fast range-limiting */ - - /* - * These fields are valid during any one scan. - * They describe the components and MCUs actually appearing in the scan. - * Note that the decompressor output side must not use these fields. - */ - int comps_in_scan; /* # of JPEG components in this scan */ - jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; - /* *cur_comp_info[i] describes component that appears i'th in SOS */ - - JDIMENSION MCUs_per_row; /* # of MCUs across the image */ - JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ - - int blocks_in_MCU; /* # of DCT blocks per MCU */ - int MCU_membership[D_MAX_BLOCKS_IN_MCU]; - /* MCU_membership[i] is index in cur_comp_info of component owning */ - /* i'th block in an MCU */ - - int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ - - /* This field is shared between entropy decoder and marker parser. - * It is either zero or the code of a JPEG marker that has been - * read from the data source, but has not yet been processed. - */ - int unread_marker; - - /* - * Links to decompression subobjects (methods, private variables of modules) - */ - struct jpeg_decomp_master * master; - struct jpeg_d_main_controller * main; - struct jpeg_d_coef_controller * coef; - struct jpeg_d_post_controller * post; - struct jpeg_input_controller * inputctl; - struct jpeg_marker_reader * marker; - struct jpeg_entropy_decoder * entropy; - struct jpeg_inverse_dct * idct; - struct jpeg_upsampler * upsample; - struct jpeg_color_deconverter * cconvert; - struct jpeg_color_quantizer * cquantize; -}; - - -/* "Object" declarations for JPEG modules that may be supplied or called - * directly by the surrounding application. - * As with all objects in the JPEG library, these structs only define the - * publicly visible methods and state variables of a module. Additional - * private fields may exist after the public ones. - */ - - -/* Error handler object */ - -struct jpeg_error_mgr { - /* Error exit handler: does not return to caller */ - JMETHOD(void, error_exit, (j_common_ptr cinfo)); - /* Conditionally emit a trace or warning message */ - JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level)); - /* Routine that actually outputs a trace or error message */ - JMETHOD(void, output_message, (j_common_ptr cinfo)); - /* Format a message string for the most recent JPEG error or message */ - JMETHOD(void, format_message, (j_common_ptr cinfo, char * buffer)); -#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */ - /* Reset error state variables at start of a new image */ - JMETHOD(void, reset_error_mgr, (j_common_ptr cinfo)); - - /* The message ID code and any parameters are saved here. - * A message can have one string parameter or up to 8 int parameters. - */ - int msg_code; -#define JMSG_STR_PARM_MAX 80 - union { - int i[8]; - char s[JMSG_STR_PARM_MAX]; - } msg_parm; - - /* Standard state variables for error facility */ - - int trace_level; /* max msg_level that will be displayed */ - - /* For recoverable corrupt-data errors, we emit a warning message, - * but keep going unless emit_message chooses to abort. emit_message - * should count warnings in num_warnings. The surrounding application - * can check for bad data by seeing if num_warnings is nonzero at the - * end of processing. - */ - long num_warnings; /* number of corrupt-data warnings */ - - /* These fields point to the table(s) of error message strings. - * An application can change the table pointer to switch to a different - * message list (typically, to change the language in which errors are - * reported). Some applications may wish to add additional error codes - * that will be handled by the JPEG library error mechanism; the second - * table pointer is used for this purpose. - * - * First table includes all errors generated by JPEG library itself. - * Error code 0 is reserved for a "no such error string" message. - */ - const char * const * jpeg_message_table; /* Library errors */ - int last_jpeg_message; /* Table contains strings 0..last_jpeg_message */ - /* Second table can be added by application (see cjpeg/djpeg for example). - * It contains strings numbered first_addon_message..last_addon_message. - */ - const char * const * addon_message_table; /* Non-library errors */ - int first_addon_message; /* code for first string in addon table */ - int last_addon_message; /* code for last string in addon table */ -}; - - -/* Progress monitor object */ - -struct jpeg_progress_mgr { - JMETHOD(void, progress_monitor, (j_common_ptr cinfo)); - - long pass_counter; /* work units completed in this pass */ - long pass_limit; /* total number of work units in this pass */ - int completed_passes; /* passes completed so far */ - int total_passes; /* total number of passes expected */ -}; - - -/* Data destination object for compression */ - -struct jpeg_destination_mgr { - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - - JMETHOD(void, init_destination, (j_compress_ptr cinfo)); - JMETHOD(boolean, empty_output_buffer, (j_compress_ptr cinfo)); - JMETHOD(void, term_destination, (j_compress_ptr cinfo)); -}; - - -/* Data source object for decompression */ - -struct jpeg_source_mgr { - const JOCTET * next_input_byte; /* => next byte to read from buffer */ - size_t bytes_in_buffer; /* # of bytes remaining in buffer */ - - JMETHOD(void, init_source, (j_decompress_ptr cinfo)); - JMETHOD(boolean, fill_input_buffer, (j_decompress_ptr cinfo)); - JMETHOD(void, skip_input_data, (j_decompress_ptr cinfo, long num_bytes)); - JMETHOD(boolean, resync_to_restart, (j_decompress_ptr cinfo, int desired)); - JMETHOD(void, term_source, (j_decompress_ptr cinfo)); -}; - - -/* Memory manager object. - * Allocates "small" objects (a few K total), "large" objects (tens of K), - * and "really big" objects (virtual arrays with backing store if needed). - * The memory manager does not allow individual objects to be freed; rather, - * each created object is assigned to a pool, and whole pools can be freed - * at once. This is faster and more convenient than remembering exactly what - * to free, especially where malloc()/free() are not too speedy. - * NB: alloc routines never return NULL. They exit to error_exit if not - * successful. - */ - -#define JPOOL_PERMANENT 0 /* lasts until master record is destroyed */ -#define JPOOL_IMAGE 1 /* lasts until done with image/datastream */ -#define JPOOL_NUMPOOLS 2 - -typedef struct jvirt_sarray_control * jvirt_sarray_ptr; -typedef struct jvirt_barray_control * jvirt_barray_ptr; - - -struct jpeg_memory_mgr { - /* Method pointers */ - JMETHOD(void *, alloc_small, (j_common_ptr cinfo, int pool_id, - size_t sizeofobject)); - JMETHOD(void FAR *, alloc_large, (j_common_ptr cinfo, int pool_id, - size_t sizeofobject)); - JMETHOD(JSAMPARRAY, alloc_sarray, (j_common_ptr cinfo, int pool_id, - JDIMENSION samplesperrow, - JDIMENSION numrows)); - JMETHOD(JBLOCKARRAY, alloc_barray, (j_common_ptr cinfo, int pool_id, - JDIMENSION blocksperrow, - JDIMENSION numrows)); - JMETHOD(jvirt_sarray_ptr, request_virt_sarray, (j_common_ptr cinfo, - int pool_id, - boolean pre_zero, - JDIMENSION samplesperrow, - JDIMENSION numrows, - JDIMENSION maxaccess)); - JMETHOD(jvirt_barray_ptr, request_virt_barray, (j_common_ptr cinfo, - int pool_id, - boolean pre_zero, - JDIMENSION blocksperrow, - JDIMENSION numrows, - JDIMENSION maxaccess)); - JMETHOD(void, realize_virt_arrays, (j_common_ptr cinfo)); - JMETHOD(JSAMPARRAY, access_virt_sarray, (j_common_ptr cinfo, - jvirt_sarray_ptr ptr, - JDIMENSION start_row, - JDIMENSION num_rows, - boolean writable)); - JMETHOD(JBLOCKARRAY, access_virt_barray, (j_common_ptr cinfo, - jvirt_barray_ptr ptr, - JDIMENSION start_row, - JDIMENSION num_rows, - boolean writable)); - JMETHOD(void, free_pool, (j_common_ptr cinfo, int pool_id)); - JMETHOD(void, self_destruct, (j_common_ptr cinfo)); - - /* Limit on memory allocation for this JPEG object. (Note that this is - * merely advisory, not a guaranteed maximum; it only affects the space - * used for virtual-array buffers.) May be changed by outer application - * after creating the JPEG object. - */ - long max_memory_to_use; -}; - - -/* Routine signature for application-supplied marker processing methods. - * Need not pass marker code since it is stored in cinfo->unread_marker. - */ -typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo)); - - -/* Declarations for routines called by application. - * The JPP macro hides prototype parameters from compilers that can't cope. - * Note JPP requires double parentheses. - */ - -#ifdef HAVE_PROTOTYPES -#define JPP(arglist) arglist -#else -#define JPP(arglist) () -#endif - - -/* Short forms of external names for systems with brain-damaged linkers. - * We shorten external names to be unique in the first six letters, which - * is good enough for all known systems. - * (If your compiler itself needs names to be unique in less than 15 - * characters, you are out of luck. Get a better compiler.) - */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_std_error jStdError -#define jpeg_create_compress jCreaCompress -#define jpeg_create_decompress jCreaDecompress -#define jpeg_destroy_compress jDestCompress -#define jpeg_destroy_decompress jDestDecompress -#define jpeg_stdio_dest jStdDest -#define jpeg_stdio_src jStdSrc -#define jpeg_set_defaults jSetDefaults -#define jpeg_set_colorspace jSetColorspace -#define jpeg_default_colorspace jDefColorspace -#define jpeg_set_quality jSetQuality -#define jpeg_set_linear_quality jSetLQuality -#define jpeg_add_quant_table jAddQuantTable -#define jpeg_quality_scaling jQualityScaling -#define jpeg_simple_progression jSimProgress -#define jpeg_suppress_tables jSuppressTables -#define jpeg_alloc_quant_table jAlcQTable -#define jpeg_alloc_huff_table jAlcHTable -#define jpeg_start_compress jStrtCompress -#define jpeg_write_scanlines jWrtScanlines -#define jpeg_finish_compress jFinCompress -#define jpeg_write_raw_data jWrtRawData -#define jpeg_write_marker jWrtMarker -#define jpeg_write_tables jWrtTables -#define jpeg_read_header jReadHeader -#define jpeg_start_decompress jStrtDecompress -#define jpeg_read_scanlines jReadScanlines -#define jpeg_finish_decompress jFinDecompress -#define jpeg_read_raw_data jReadRawData -#define jpeg_has_multiple_scans jHasMultScn -#define jpeg_start_output jStrtOutput -#define jpeg_finish_output jFinOutput -#define jpeg_input_complete jInComplete -#define jpeg_new_colormap jNewCMap -#define jpeg_consume_input jConsumeInput -#define jpeg_calc_output_dimensions jCalcDimensions -#define jpeg_set_marker_processor jSetMarker -#define jpeg_read_coefficients jReadCoefs -#define jpeg_write_coefficients jWrtCoefs -#define jpeg_copy_critical_parameters jCopyCrit -#define jpeg_abort_compress jAbrtCompress -#define jpeg_abort_decompress jAbrtDecompress -#define jpeg_abort jAbort -#define jpeg_destroy jDestroy -#define jpeg_resync_to_restart jResyncRestart -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* Default error-management setup */ -EXTERN struct jpeg_error_mgr *jpeg_std_error JPP((struct jpeg_error_mgr *err)); - -/* Initialization and destruction of JPEG compression objects */ -/* NB: you must set up the error-manager BEFORE calling jpeg_create_xxx */ -EXTERN void jpeg_create_compress JPP((j_compress_ptr cinfo)); -EXTERN void jpeg_create_decompress JPP((j_decompress_ptr cinfo)); -EXTERN void jpeg_destroy_compress JPP((j_compress_ptr cinfo)); -EXTERN void jpeg_destroy_decompress JPP((j_decompress_ptr cinfo)); - -/* Standard data source and destination managers: stdio streams. */ -/* Caller is responsible for opening the file before and closing after. */ -EXTERN void jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile)); -EXTERN void jpeg_stdio_src JPP((j_decompress_ptr cinfo, unsigned char *infile, int bufsize)); - -/* Default parameter setup for compression */ -EXTERN void jpeg_set_defaults JPP((j_compress_ptr cinfo)); -/* Compression parameter setup aids */ -EXTERN void jpeg_set_colorspace JPP((j_compress_ptr cinfo, - J_COLOR_SPACE colorspace)); -EXTERN void jpeg_default_colorspace JPP((j_compress_ptr cinfo)); -EXTERN void jpeg_set_quality JPP((j_compress_ptr cinfo, int quality, - boolean force_baseline)); -EXTERN void jpeg_set_linear_quality JPP((j_compress_ptr cinfo, - int scale_factor, - boolean force_baseline)); -EXTERN void jpeg_add_quant_table JPP((j_compress_ptr cinfo, int which_tbl, - const unsigned int *basic_table, - int scale_factor, - boolean force_baseline)); -EXTERN int jpeg_quality_scaling JPP((int quality)); -EXTERN void jpeg_simple_progression JPP((j_compress_ptr cinfo)); -EXTERN void jpeg_suppress_tables JPP((j_compress_ptr cinfo, - boolean suppress)); -EXTERN JQUANT_TBL * jpeg_alloc_quant_table JPP((j_common_ptr cinfo)); -EXTERN JHUFF_TBL * jpeg_alloc_huff_table JPP((j_common_ptr cinfo)); - -/* Main entry points for compression */ -EXTERN void jpeg_start_compress JPP((j_compress_ptr cinfo, - boolean write_all_tables)); -EXTERN JDIMENSION jpeg_write_scanlines JPP((j_compress_ptr cinfo, - JSAMPARRAY scanlines, - JDIMENSION num_lines)); -EXTERN void jpeg_finish_compress JPP((j_compress_ptr cinfo)); - -/* Replaces jpeg_write_scanlines when writing raw downsampled data. */ -EXTERN JDIMENSION jpeg_write_raw_data JPP((j_compress_ptr cinfo, - JSAMPIMAGE data, - JDIMENSION num_lines)); - -/* Write a special marker. See libjpeg.doc concerning safe usage. */ -EXTERN void jpeg_write_marker JPP((j_compress_ptr cinfo, int marker, - const JOCTET *dataptr, unsigned int datalen)); - -/* Alternate compression function: just write an abbreviated table file */ -EXTERN void jpeg_write_tables JPP((j_compress_ptr cinfo)); - -/* Decompression startup: read start of JPEG datastream to see what's there */ -EXTERN int jpeg_read_header JPP((j_decompress_ptr cinfo, - boolean require_image)); -/* Return value is one of: */ -#define JPEG_SUSPENDED 0 /* Suspended due to lack of input data */ -#define JPEG_HEADER_OK 1 /* Found valid image datastream */ -#define JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */ -/* If you pass require_image = TRUE (normal case), you need not check for - * a TABLES_ONLY return code; an abbreviated file will cause an error exit. - * JPEG_SUSPENDED is only possible if you use a data source module that can - * give a suspension return (the stdio source module doesn't). - */ - -/* Main entry points for decompression */ -EXTERN boolean jpeg_start_decompress JPP((j_decompress_ptr cinfo)); -EXTERN JDIMENSION jpeg_read_scanlines JPP((j_decompress_ptr cinfo, - JSAMPARRAY scanlines, - JDIMENSION max_lines)); -EXTERN boolean jpeg_finish_decompress JPP((j_decompress_ptr cinfo)); - -/* Replaces jpeg_read_scanlines when reading raw downsampled data. */ -EXTERN JDIMENSION jpeg_read_raw_data JPP((j_decompress_ptr cinfo, - JSAMPIMAGE data, - JDIMENSION max_lines)); - -/* Additional entry points for buffered-image mode. */ -EXTERN boolean jpeg_has_multiple_scans JPP((j_decompress_ptr cinfo)); -EXTERN boolean jpeg_start_output JPP((j_decompress_ptr cinfo, - int scan_number)); -EXTERN boolean jpeg_finish_output JPP((j_decompress_ptr cinfo)); -EXTERN boolean jpeg_input_complete JPP((j_decompress_ptr cinfo)); -EXTERN void jpeg_new_colormap JPP((j_decompress_ptr cinfo)); -EXTERN int jpeg_consume_input JPP((j_decompress_ptr cinfo)); -/* Return value is one of: */ -/* #define JPEG_SUSPENDED 0 Suspended due to lack of input data */ -#define JPEG_REACHED_SOS 1 /* Reached start of new scan */ -#define JPEG_REACHED_EOI 2 /* Reached end of image */ -#define JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */ -#define JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */ - -/* Precalculate output dimensions for current decompression parameters. */ -EXTERN void jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo)); - -/* Install a special processing method for COM or APPn markers. */ -EXTERN void jpeg_set_marker_processor JPP((j_decompress_ptr cinfo, - int marker_code, - jpeg_marker_parser_method routine)); - -/* Read or write raw DCT coefficients --- useful for lossless transcoding. */ -EXTERN jvirt_barray_ptr * jpeg_read_coefficients JPP((j_decompress_ptr cinfo)); -EXTERN void jpeg_write_coefficients JPP((j_compress_ptr cinfo, - jvirt_barray_ptr * coef_arrays)); -EXTERN void jpeg_copy_critical_parameters JPP((j_decompress_ptr srcinfo, - j_compress_ptr dstinfo)); - -/* If you choose to abort compression or decompression before completing - * jpeg_finish_(de)compress, then you need to clean up to release memory, - * temporary files, etc. You can just call jpeg_destroy_(de)compress - * if you're done with the JPEG object, but if you want to clean it up and - * reuse it, call this: - */ -EXTERN void jpeg_abort_compress JPP((j_compress_ptr cinfo)); -EXTERN void jpeg_abort_decompress JPP((j_decompress_ptr cinfo)); - -/* Generic versions of jpeg_abort and jpeg_destroy that work on either - * flavor of JPEG object. These may be more convenient in some places. - */ -EXTERN void jpeg_abort JPP((j_common_ptr cinfo)); -EXTERN void jpeg_destroy JPP((j_common_ptr cinfo)); - -/* Default restart-marker-resync procedure for use by data source modules */ -EXTERN boolean jpeg_resync_to_restart JPP((j_decompress_ptr cinfo, - int desired)); - - -/* These marker codes are exported since applications and data source modules - * are likely to want to use them. - */ - -#define JPEG_RST0 0xD0 /* RST0 marker code */ -#define JPEG_EOI 0xD9 /* EOI marker code */ -#define JPEG_APP0 0xE0 /* APP0 marker code */ -#define JPEG_COM 0xFE /* COM marker code */ - - -/* If we have a brain-damaged compiler that emits warnings (or worse, errors) - * for structure definitions that are never filled in, keep it quiet by - * supplying dummy definitions for the various substructures. - */ - -#ifdef INCOMPLETE_TYPES_BROKEN -#ifndef JPEG_INTERNALS /* will be defined in jpegint.h */ -struct jvirt_sarray_control { long dummy; }; -struct jvirt_barray_control { long dummy; }; -struct jpeg_comp_master { long dummy; }; -struct jpeg_c_main_controller { long dummy; }; -struct jpeg_c_prep_controller { long dummy; }; -struct jpeg_c_coef_controller { long dummy; }; -struct jpeg_marker_writer { long dummy; }; -struct jpeg_color_converter { long dummy; }; -struct jpeg_downsampler { long dummy; }; -struct jpeg_forward_dct { long dummy; }; -struct jpeg_entropy_encoder { long dummy; }; -struct jpeg_decomp_master { long dummy; }; -struct jpeg_d_main_controller { long dummy; }; -struct jpeg_d_coef_controller { long dummy; }; -struct jpeg_d_post_controller { long dummy; }; -struct jpeg_input_controller { long dummy; }; -struct jpeg_marker_reader { long dummy; }; -struct jpeg_entropy_decoder { long dummy; }; -struct jpeg_inverse_dct { long dummy; }; -struct jpeg_upsampler { long dummy; }; -struct jpeg_color_deconverter { long dummy; }; -struct jpeg_color_quantizer { long dummy; }; -#endif /* JPEG_INTERNALS */ -#endif /* INCOMPLETE_TYPES_BROKEN */ - - -/* - * The JPEG library modules define JPEG_INTERNALS before including this file. - * The internal structure declarations are read only when that is true. - * Applications using the library should not include jpegint.h, but may wish - * to include jerror.h. - */ - -#ifdef JPEG_INTERNALS -#include "jpegint.h" /* fetch private declarations */ -#include "jerror.h" /* fetch error codes too */ -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* JPEGLIB_H */ diff --git a/utils.py b/utils.py index 440a1524..f8838952 100644 --- a/utils.py +++ b/utils.py @@ -3,7 +3,7 @@ # TTimo # http://scons.sourceforge.net -import os, commands, platform, xml.sax, re, string +import os, commands, platform, xml.sax, re, string, platform class vcproj( xml.sax.handler.ContentHandler ): def __init__( self, filepath ): @@ -46,6 +46,9 @@ class vcproj( xml.sax.handler.ContentHandler ): # action uses LDD to verify that the source doesn't hold unresolved symbols # setup as an AddPostAction of a regular SharedLibrary call def CheckUnresolved( source, target, env ): + # TODO: implement this for OSX + if ( platform.system() == 'Darwin' ): + return None print 'CheckUnresolved %s' % target[0].abspath if ( not os.path.isfile( target[0].abspath ) ): print 'CheckUnresolved: %s does not exist' % target[0] -- 2.39.2