--- /dev/null
+/*
+ Copyright (C) 2003-2005 Mathieu Olivier
+
+ This program 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.
+
+ This program 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 this program; if not, write to:
+
+ Free Software Foundation, Inc.
+ 59 Temple Place - Suite 330
+ Boston, MA 02111-1307, USA
+
+*/
+
+
+#include "quakedef.h"
+#include "snd_main.h"
+#include "snd_modplug.h"
+
+#ifdef LINK_TO_LIBMODPLUG
+
+#include <libmodplug/modplug.h>
+qboolean ModPlug_OpenLibrary (void)
+{
+ return true; // statically linked
+}
+void ModPlug_CloseLibrary (void)
+{
+}
+#define modplug_dll 1
+#define qModPlug_Load ModPlug_Load
+#define qModPlug_Unload ModPlug_Unload
+#define qModPlug_Read ModPlug_Read
+#define qModPlug_Seek ModPlug_Seek
+#define qModPlug_GetSettings ModPlug_GetSettings
+#define qModPlug_SetSettings ModPlug_SetSettings
+#define qModPlug_SetMasterVolume ModPlug_SetMasterVolume
+
+#else
+// BEGIN SECTION FROM modplug.h
+
+ /*
+ * This source code is public domain.
+ *
+ * Authors: Kenton Varda <temporal@gauge3d.org> (C interface wrapper)
+ */
+
+ enum _ModPlug_Flags
+ {
+ MODPLUG_ENABLE_OVERSAMPLING = 1 << 0, /* Enable oversampling (*highly* recommended) */
+ MODPLUG_ENABLE_NOISE_REDUCTION = 1 << 1, /* Enable noise reduction */
+ MODPLUG_ENABLE_REVERB = 1 << 2, /* Enable reverb */
+ MODPLUG_ENABLE_MEGABASS = 1 << 3, /* Enable megabass */
+ MODPLUG_ENABLE_SURROUND = 1 << 4 /* Enable surround sound. */
+ };
+
+ enum _ModPlug_ResamplingMode
+ {
+ MODPLUG_RESAMPLE_NEAREST = 0, /* No interpolation (very fast, extremely bad sound quality) */
+ MODPLUG_RESAMPLE_LINEAR = 1, /* Linear interpolation (fast, good quality) */
+ MODPLUG_RESAMPLE_SPLINE = 2, /* Cubic spline interpolation (high quality) */
+ MODPLUG_RESAMPLE_FIR = 3 /* 8-tap fir filter (extremely high quality) */
+ };
+
+ typedef struct _ModPlug_Settings
+ {
+ int mFlags; /* One or more of the MODPLUG_ENABLE_* flags above, bitwise-OR'ed */
+
+ /* Note that ModPlug always decodes sound at 44100kHz, 32 bit, stereo and then
+ * down-mixes to the settings you choose. */
+ int mChannels; /* Number of channels - 1 for mono or 2 for stereo */
+ int mBits; /* Bits per sample - 8, 16, or 32 */
+ int mFrequency; /* Sampling rate - 11025, 22050, or 44100 */
+ int mResamplingMode; /* One of MODPLUG_RESAMPLE_*, above */
+
+ int mStereoSeparation; /* Stereo separation, 1 - 256 */
+ int mMaxMixChannels; /* Maximum number of mixing channels (polyphony), 32 - 256 */
+
+ int mReverbDepth; /* Reverb level 0(quiet)-100(loud) */
+ int mReverbDelay; /* Reverb delay in ms, usually 40-200ms */
+ int mBassAmount; /* XBass level 0(quiet)-100(loud) */
+ int mBassRange; /* XBass cutoff in Hz 10-100 */
+ int mSurroundDepth; /* Surround level 0(quiet)-100(heavy) */
+ int mSurroundDelay; /* Surround delay in ms, usually 5-40ms */
+ int mLoopCount; /* Number of times to loop. Zero prevents looping.
+ -1 loops forever. */
+ } ModPlug_Settings;
+
+ struct _ModPlugFile;
+ typedef struct _ModPlugFile ModPlugFile;
+
+// END SECTION FROM modplug.h
+
+static ModPlugFile* (*qModPlug_Load) (const void* data, int size);
+static void (*qModPlug_Unload) (ModPlugFile* file);
+static int (*qModPlug_Read) (ModPlugFile* file, void* buffer, int size);
+static void (*qModPlug_Seek) (ModPlugFile* file, int millisecond);
+static void (*qModPlug_GetSettings) (ModPlug_Settings* settings);
+static void (*qModPlug_SetSettings) (const ModPlug_Settings* settings);
+typedef void (ModPlug_SetMasterVolume_t) (ModPlugFile* file,unsigned int cvol) ;
+ModPlug_SetMasterVolume_t *qModPlug_SetMasterVolume;
+
+
+static dllfunction_t modplugfuncs[] =
+{
+ {"ModPlug_Load", (void **) &qModPlug_Load},
+ {"ModPlug_Unload", (void **) &qModPlug_Unload},
+ {"ModPlug_Read", (void **) &qModPlug_Read},
+ {"ModPlug_Seek", (void **) &qModPlug_Seek},
+ {"ModPlug_GetSettings", (void **) &qModPlug_GetSettings},
+ {"ModPlug_SetSettings", (void **) &qModPlug_SetSettings},
+ {NULL, NULL}
+};
+
+// Handles for the modplug and modplugfile DLLs
+static dllhandle_t modplug_dll = NULL;
+
+/*
+=================================================================
+
+ DLL load & unload
+
+=================================================================
+*/
+
+/*
+====================
+ModPlug_OpenLibrary
+
+Try to load the modplugFile DLL
+====================
+*/
+qboolean ModPlug_OpenLibrary (void)
+{
+ const char* dllnames_modplug [] =
+ {
+#if defined(WIN32)
+ "libmodplug-1.dll",
+ "modplug.dll",
+#elif defined(MACOSX)
+ "libmodplug.dylib",
+#else
+ "libmodplug.so.1",
+ "libmodplug.so",
+#endif
+ NULL
+ };
+
+ // Already loaded?
+ if (modplug_dll)
+ return true;
+
+// COMMANDLINEOPTION: Sound: -nomodplug disables modplug sound support
+ if (COM_CheckParm("-nomodplug"))
+ return false;
+
+#ifdef __ANDROID__
+ Con_Print("Warning: no modplug support in Android yet.\n");
+ return false;
+#endif
+
+ // Load the DLLs
+ // We need to load both by hand because some OSes seem to not load
+ // the modplug DLL automatically when loading the modplugFile DLL
+ if(Sys_LoadLibrary (dllnames_modplug, &modplug_dll, modplugfuncs))
+ {
+ qModPlug_SetMasterVolume = (ModPlug_SetMasterVolume_t *) Sys_GetProcAddress(modplug_dll, "ModPlug_SetMasterVolume");
+ if(!qModPlug_SetMasterVolume)
+ Con_Print("Warning: modplug volume control not supported. Try getting a newer version of libmodplug.\n");
+ return true;
+ }
+ else
+ return false;
+}
+
+
+/*
+====================
+ModPlug_CloseLibrary
+
+Unload the modplugFile DLL
+====================
+*/
+void ModPlug_CloseLibrary (void)
+{
+ Sys_UnloadLibrary (&modplug_dll);
+}
+#endif
+
+
+/*
+=================================================================
+
+ modplug decoding
+
+=================================================================
+*/
+
+// Per-sfx data structure
+typedef struct
+{
+ unsigned char *file;
+ size_t filesize;
+} modplug_stream_persfx_t;
+
+// Per-channel data structure
+typedef struct
+{
+ ModPlugFile *mf;
+ int bs;
+ int buffer_firstframe;
+ int buffer_numframes;
+ unsigned char buffer[STREAM_BUFFERSIZE*4];
+} modplug_stream_perchannel_t;
+
+
+/*
+====================
+ModPlug_GetSamplesFloat
+====================
+*/
+static void ModPlug_GetSamplesFloat(channel_t *ch, sfx_t *sfx, int firstsampleframe, int numsampleframes, float *outsamplesfloat)
+{
+ modplug_stream_perchannel_t* per_ch = (modplug_stream_perchannel_t *)ch->fetcher_data;
+ modplug_stream_persfx_t* per_sfx = (modplug_stream_persfx_t *)sfx->fetcher_data;
+ int newlength, done, ret;
+ int f = sfx->format.width * sfx->format.channels; // bytes per frame
+ short *buf;
+ int i, len;
+
+ // If there's no fetcher structure attached to the channel yet
+ if (per_ch == NULL)
+ {
+ per_ch = (modplug_stream_perchannel_t *)Mem_Alloc(snd_mempool, sizeof(*per_ch));
+
+ // Open it with the modplugFile API
+ per_ch->mf = qModPlug_Load(per_sfx->file, per_sfx->filesize);
+ if (!per_ch->mf)
+ {
+ // we can't call Con_Printf here, not thread safe
+// Con_Printf("error while reading ModPlug stream \"%s\"\n", per_sfx->name);
+ Mem_Free(per_ch);
+ return;
+ }
+
+#ifndef LINK_TO_LIBMODPLUG
+ if(qModPlug_SetMasterVolume)
+#endif
+ qModPlug_SetMasterVolume(per_ch->mf, 512); // max volume, DP scales down!
+
+ per_ch->bs = 0;
+
+ per_ch->buffer_firstframe = 0;
+ per_ch->buffer_numframes = 0;
+ ch->fetcher_data = per_ch;
+ }
+
+ // if the request is too large for our buffer, loop...
+ while (numsampleframes * f > (int)sizeof(per_ch->buffer))
+ {
+ done = sizeof(per_ch->buffer) / f;
+ ModPlug_GetSamplesFloat(ch, sfx, firstsampleframe, done, outsamplesfloat);
+ firstsampleframe += done;
+ numsampleframes -= done;
+ outsamplesfloat += done * sfx->format.channels;
+ }
+
+ // seek if the request is before the current buffer (loop back)
+ // seek if the request starts beyond the current buffer by at least one frame (channel was zero volume for a while)
+ // do not seek if the request overlaps the buffer end at all (expected behavior)
+ if (per_ch->buffer_firstframe > firstsampleframe || per_ch->buffer_firstframe + per_ch->buffer_numframes < firstsampleframe)
+ {
+ // we expect to decode forward from here so this will be our new buffer start
+ per_ch->buffer_firstframe = firstsampleframe;
+ per_ch->buffer_numframes = 0;
+ // we don't actually seek - we don't care much about timing on silent mod music streams and looping never happens
+ //qModPlug_Seek(per_ch->mf, firstsampleframe * 1000.0 / sfx->format.speed);
+ }
+
+ // decompress the file as needed
+ if (firstsampleframe + numsampleframes > per_ch->buffer_firstframe + per_ch->buffer_numframes)
+ {
+ // first slide the buffer back, discarding any data preceding the range we care about
+ int offset = firstsampleframe - per_ch->buffer_firstframe;
+ int keeplength = per_ch->buffer_numframes - offset;
+ if (keeplength > 0)
+ memmove(per_ch->buffer, per_ch->buffer + offset * sfx->format.width * sfx->format.channels, keeplength * sfx->format.width * sfx->format.channels);
+ per_ch->buffer_firstframe = firstsampleframe;
+ per_ch->buffer_numframes -= offset;
+ // decompress as much as we can fit in the buffer
+ newlength = sizeof(per_ch->buffer) - per_ch->buffer_numframes * f;
+ done = 0;
+ while (newlength > done && (ret = qModPlug_Read(per_ch->mf, (void *)((unsigned char *)per_ch->buffer + done), (int)(newlength - done))) > 0)
+ done += ret;
+ // clear the missing space if any
+ if (done < newlength)
+ {
+ memset(per_ch->buffer + done, 0, newlength - done);
+ // Argh. We didn't get as many samples as we wanted. Probably
+ // libmodplug forgot what mLoopCount==-1 means... basically, this means
+ // we can't loop like this. Try to let DP fix it later...
+ sfx->total_length = firstsampleframe + done / f;
+ sfx->loopstart = 0;
+ // can't Con_Printf from this thread
+ //if (newlength != done)
+ // Con_DPrintf("ModPlug_Fetch: wanted: %d, got: %d\n", newlength, done);
+ }
+ // we now have more data in the buffer
+ per_ch->buffer_numframes += done / f;
+ }
+
+ // convert the sample format for the caller
+ buf = (short *)(per_ch->buffer + (firstsampleframe - per_ch->buffer_firstframe) * f);
+ len = numsampleframes * sfx->format.channels;
+ for (i = 0;i < len;i++)
+ outsamplesfloat[i] = buf[i] * (1.0f / 32768.0f);
+}
+
+
+/*
+====================
+ModPlug_StopChannel
+====================
+*/
+static void ModPlug_StopChannel(channel_t *ch)
+{
+ modplug_stream_perchannel_t *per_ch = (modplug_stream_perchannel_t *)ch->fetcher_data;
+
+ if (per_ch != NULL)
+ {
+ // Free the modplug decoder
+ qModPlug_Unload(per_ch->mf);
+
+ Mem_Free(per_ch);
+ }
+}
+
+
+/*
+====================
+ModPlug_FreeSfx
+====================
+*/
+static void ModPlug_FreeSfx (sfx_t *sfx)
+{
+ modplug_stream_persfx_t* per_sfx = (modplug_stream_persfx_t *)sfx->fetcher_data;
+
+ // Free the modplug file
+ Mem_Free(per_sfx->file);
+
+ // Free the stream structure
+ Mem_Free(per_sfx);
+}
+
+
+static const snd_fetcher_t modplug_fetcher = { ModPlug_GetSamplesFloat, ModPlug_StopChannel, ModPlug_FreeSfx };
+
+
+/*
+====================
+ModPlug_LoadmodplugFile
+
+Load an modplug file into memory
+====================
+*/
+qboolean ModPlug_LoadModPlugFile (const char *filename, sfx_t *sfx)
+{
+ unsigned char *data;
+ fs_offset_t filesize;
+ ModPlugFile *mf;
+ modplug_stream_persfx_t* per_sfx;
+ ModPlug_Settings s;
+
+ if (!modplug_dll)
+ return false;
+
+ // Already loaded?
+ if (sfx->fetcher != NULL)
+ return true;
+
+ // Load the file
+ data = FS_LoadFile (filename, snd_mempool, false, &filesize);
+ if (data == NULL)
+ return false;
+
+ if (developer_loading.integer >= 2)
+ Con_Printf ("Loading ModPlug file \"%s\"\n", filename);
+
+ qModPlug_GetSettings(&s);
+ s.mFlags = MODPLUG_ENABLE_OVERSAMPLING | MODPLUG_ENABLE_NOISE_REDUCTION | MODPLUG_ENABLE_REVERB;
+ s.mChannels = 2;
+ s.mBits = 16;
+ s.mFrequency = 44100;
+ s.mResamplingMode = MODPLUG_RESAMPLE_SPLINE;
+ s.mLoopCount = -1;
+ qModPlug_SetSettings(&s);
+
+ // Open it with the modplugFile API
+ if (!(mf = qModPlug_Load (data, filesize)))
+ {
+ Con_Printf ("error while opening ModPlug file \"%s\"\n", filename);
+ Mem_Free(data);
+ return false;
+ }
+
+#ifndef LINK_TO_LIBMODPLUG
+ if(qModPlug_SetMasterVolume)
+#endif
+ qModPlug_SetMasterVolume(mf, 512); // max volume, DP scales down!
+
+ if (developer_loading.integer >= 2)
+ Con_Printf ("\"%s\" will be streamed\n", filename);
+ per_sfx = (modplug_stream_persfx_t *)Mem_Alloc (snd_mempool, sizeof (*per_sfx));
+ per_sfx->file = data;
+ per_sfx->filesize = filesize;
+ sfx->memsize += sizeof(*per_sfx);
+ sfx->memsize += filesize;
+ sfx->format.speed = 44100; // modplug always works at that rate
+ sfx->format.width = 2; // We always work with 16 bits samples
+ sfx->format.channels = 2; // stereo rulez ;) (MAYBE default to mono because Amiga MODs sound better then?)
+ sfx->fetcher_data = per_sfx;
+ sfx->fetcher = &modplug_fetcher;
+ sfx->flags |= SFXFLAG_STREAMED;
+ sfx->total_length = 1<<30; // 2147384647; // they always loop (FIXME this breaks after 6 hours, we need support for a real "infinite" value!)
+ sfx->loopstart = sfx->total_length; // modplug does it
+
+ return true;
+}
projects / xonotic / darkplaces.git / commitdiff