1 #ifndef __khrplatform_h_
2 #define __khrplatform_h_
5 ** Copyright (c) 2008-2009 The Khronos Group Inc.
7 ** Permission is hereby granted, free of charge, to any person obtaining a
8 ** copy of this software and/or associated documentation files (the
9 ** "Materials"), to deal in the Materials without restriction, including
10 ** without limitation the rights to use, copy, modify, merge, publish,
11 ** distribute, sublicense, and/or sell copies of the Materials, and to
12 ** permit persons to whom the Materials are furnished to do so, subject to
13 ** the following conditions:
15 ** The above copyright notice and this permission notice shall be included
16 ** in all copies or substantial portions of the Materials.
18 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
27 /* Khronos platform-specific types and definitions.
29 * $Revision: 23298 $ on $Date: 2013-09-30 17:07:13 -0700 (Mon, 30 Sep 2013) $
31 * Adopters may modify this file to suit their platform. Adopters are
32 * encouraged to submit platform specific modifications to the Khronos
33 * group so that they can be included in future versions of this file.
34 * Please submit changes by sending them to the public Khronos Bugzilla
35 * (http://khronos.org/bugzilla) by filing a bug against product
36 * "Khronos (general)" component "Registry".
38 * A predefined template which fills in some of the bug fields can be
39 * reached using http://tinyurl.com/khrplatform-h-bugreport, but you
40 * must create a Bugzilla login first.
43 * See the Implementer's Guidelines for information about where this file
44 * should be located on your system and for more details of its use:
45 * http://www.khronos.org/registry/implementers_guide.pdf
47 * This file should be included as
48 * #include <KHR/khrplatform.h>
49 * by Khronos client API header files that use its types and defines.
51 * The types in khrplatform.h should only be used to define API-specific types.
53 * Types defined in khrplatform.h:
54 * khronos_int8_t signed 8 bit
55 * khronos_uint8_t unsigned 8 bit
56 * khronos_int16_t signed 16 bit
57 * khronos_uint16_t unsigned 16 bit
58 * khronos_int32_t signed 32 bit
59 * khronos_uint32_t unsigned 32 bit
60 * khronos_int64_t signed 64 bit
61 * khronos_uint64_t unsigned 64 bit
62 * khronos_intptr_t signed same number of bits as a pointer
63 * khronos_uintptr_t unsigned same number of bits as a pointer
64 * khronos_ssize_t signed size
65 * khronos_usize_t unsigned size
66 * khronos_float_t signed 32 bit floating point
67 * khronos_time_ns_t unsigned 64 bit time in nanoseconds
68 * khronos_utime_nanoseconds_t unsigned time interval or absolute time in
70 * khronos_stime_nanoseconds_t signed time interval in nanoseconds
71 * khronos_boolean_enum_t enumerated boolean type. This should
72 * only be used as a base type when a client API's boolean type is
73 * an enum. Client APIs which use an integer or other type for
74 * booleans cannot use this as the base type for their boolean.
76 * Tokens defined in khrplatform.h:
78 * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
80 * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
81 * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
83 * Calling convention macros defined in this file:
86 * KHRONOS_APIATTRIBUTES
88 * These may be used in function prototypes as:
90 * KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
92 * int arg2) KHRONOS_APIATTRIBUTES;
95 /*-------------------------------------------------------------------------
96 * Definition of KHRONOS_APICALL
97 *-------------------------------------------------------------------------
98 * This precedes the return type of the function in the function prototype.
100 #if defined(_WIN32) && !defined(__SCITECH_SNAP__)
101 # define KHRONOS_APICALL __declspec(dllimport)
102 #elif defined (__SYMBIAN32__)
103 # define KHRONOS_APICALL IMPORT_C
105 # define KHRONOS_APICALL
108 /*-------------------------------------------------------------------------
109 * Definition of KHRONOS_APIENTRY
110 *-------------------------------------------------------------------------
111 * This follows the return type of the function and precedes the function
112 * name in the function prototype.
114 #if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
115 /* Win32 but not WinCE */
116 # define KHRONOS_APIENTRY __stdcall
118 # define KHRONOS_APIENTRY
121 /*-------------------------------------------------------------------------
122 * Definition of KHRONOS_APIATTRIBUTES
123 *-------------------------------------------------------------------------
124 * This follows the closing parenthesis of the function prototype arguments.
126 #if defined (__ARMCC_2__)
127 #define KHRONOS_APIATTRIBUTES __softfp
129 #define KHRONOS_APIATTRIBUTES
132 /*-------------------------------------------------------------------------
133 * basic type definitions
134 *-----------------------------------------------------------------------*/
135 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
142 typedef int32_t khronos_int32_t;
143 typedef uint32_t khronos_uint32_t;
144 typedef int64_t khronos_int64_t;
145 typedef uint64_t khronos_uint64_t;
146 #define KHRONOS_SUPPORT_INT64 1
147 #define KHRONOS_SUPPORT_FLOAT 1
149 #elif defined(__VMS ) || defined(__sgi)
154 #include <inttypes.h>
155 typedef int32_t khronos_int32_t;
156 typedef uint32_t khronos_uint32_t;
157 typedef int64_t khronos_int64_t;
158 typedef uint64_t khronos_uint64_t;
159 #define KHRONOS_SUPPORT_INT64 1
160 #define KHRONOS_SUPPORT_FLOAT 1
162 #elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
167 typedef __int32 khronos_int32_t;
168 typedef unsigned __int32 khronos_uint32_t;
169 typedef __int64 khronos_int64_t;
170 typedef unsigned __int64 khronos_uint64_t;
171 #define KHRONOS_SUPPORT_INT64 1
172 #define KHRONOS_SUPPORT_FLOAT 1
174 #elif defined(__sun__) || defined(__digital__)
179 typedef int khronos_int32_t;
180 typedef unsigned int khronos_uint32_t;
181 #if defined(__arch64__) || defined(_LP64)
182 typedef long int khronos_int64_t;
183 typedef unsigned long int khronos_uint64_t;
185 typedef long long int khronos_int64_t;
186 typedef unsigned long long int khronos_uint64_t;
187 #endif /* __arch64__ */
188 #define KHRONOS_SUPPORT_INT64 1
189 #define KHRONOS_SUPPORT_FLOAT 1
194 * Hypothetical platform with no float or int64 support
196 typedef int khronos_int32_t;
197 typedef unsigned int khronos_uint32_t;
198 #define KHRONOS_SUPPORT_INT64 0
199 #define KHRONOS_SUPPORT_FLOAT 0
207 typedef int32_t khronos_int32_t;
208 typedef uint32_t khronos_uint32_t;
209 typedef int64_t khronos_int64_t;
210 typedef uint64_t khronos_uint64_t;
211 #define KHRONOS_SUPPORT_INT64 1
212 #define KHRONOS_SUPPORT_FLOAT 1
218 * Types that are (so far) the same on all platforms
220 typedef signed char khronos_int8_t;
221 typedef unsigned char khronos_uint8_t;
222 typedef signed short int khronos_int16_t;
223 typedef unsigned short int khronos_uint16_t;
226 * Types that differ between LLP64 and LP64 architectures - in LLP64,
227 * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
228 * to be the only LLP64 architecture in current use.
231 typedef signed long long int khronos_intptr_t;
232 typedef unsigned long long int khronos_uintptr_t;
233 typedef signed long long int khronos_ssize_t;
234 typedef unsigned long long int khronos_usize_t;
236 typedef signed long int khronos_intptr_t;
237 typedef unsigned long int khronos_uintptr_t;
238 typedef signed long int khronos_ssize_t;
239 typedef unsigned long int khronos_usize_t;
242 #if KHRONOS_SUPPORT_FLOAT
246 typedef float khronos_float_t;
249 #if KHRONOS_SUPPORT_INT64
252 * These types can be used to represent a time interval in nanoseconds or
253 * an absolute Unadjusted System Time. Unadjusted System Time is the number
254 * of nanoseconds since some arbitrary system event (e.g. since the last
255 * time the system booted). The Unadjusted System Time is an unsigned
256 * 64 bit value that wraps back to 0 every 584 years. Time intervals
257 * may be either signed or unsigned.
259 typedef khronos_uint64_t khronos_utime_nanoseconds_t;
260 typedef khronos_int64_t khronos_stime_nanoseconds_t;
264 * Dummy value used to pad enum types to 32 bits.
266 #ifndef KHRONOS_MAX_ENUM
267 #define KHRONOS_MAX_ENUM 0x7FFFFFFF
271 * Enumerated boolean type
273 * Values other than zero should be considered to be true. Therefore
274 * comparisons should not be made against KHRONOS_TRUE.
279 KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
280 } khronos_boolean_enum_t;
282 #endif /* __khrplatform_h_ */