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1 #ifndef __khrplatform_h_ | |
2 #define __khrplatform_h_ | |
3 | |
4 /* | |
5 ** Copyright (c) 2008-2009 The Khronos Group Inc. | |
6 ** | |
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: | |
14 ** | |
15 ** The above copyright notice and this permission notice shall be included | |
16 ** in all copies or substantial portions of the Materials. | |
17 ** | |
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. | |
25 */ | |
26 | |
27 /* Khronos platform-specific types and definitions. | |
28 * | |
29 * $Revision: 9356 $ on $Date: 2009-10-21 02:52:25 -0700 (Wed, 21 Oct 2009) $ | |
30 * | |
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". | |
37 * | |
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. | |
41 * | |
42 * | |
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 | |
46 * | |
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. | |
50 * | |
51 * The types in khrplatform.h should only be used to define API-specific types. | |
52 * | |
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 | |
69 * nanoseconds | |
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. | |
75 * | |
76 * Tokens defined in khrplatform.h: | |
77 * | |
78 * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. | |
79 * | |
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. | |
82 * | |
83 * Calling convention macros defined in this file: | |
84 * KHRONOS_APICALL | |
85 * KHRONOS_APIENTRY | |
86 * KHRONOS_APIATTRIBUTES | |
87 * | |
88 * These may be used in function prototypes as: | |
89 * | |
90 * KHRONOS_APICALL void KHRONOS_APIENTRY funcname( | |
91 * int arg1, | |
92 * int arg2) KHRONOS_APIATTRIBUTES; | |
93 */ | |
94 | |
95 /*------------------------------------------------------------------------- | |
96 * Definition of KHRONOS_APICALL | |
97 *------------------------------------------------------------------------- | |
98 * This precedes the return type of the function in the function prototype. | |
99 */ | |
100 #if defined(_WIN32) && !defined(__SCITECH_SNAP__) | |
101 # if defined(KHRONOS_DLL_EXPORTS) | |
102 # define KHRONOS_APICALL __declspec(dllexport) | |
103 # else | |
104 # define KHRONOS_APICALL __declspec(dllimport) | |
105 # endif | |
106 #elif defined (__SYMBIAN32__) | |
107 # define KHRONOS_APICALL IMPORT_C | |
108 #elif (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303) \ | |
109 || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) | |
110 /* KHRONOS_APIATTRIBUTES is not used by the client API headers yet */ | |
111 # define KHRONOS_APICALL __attribute__((visibility("default"))) | |
112 #else | |
113 # define KHRONOS_APICALL | |
114 #endif | |
115 | |
116 /*------------------------------------------------------------------------- | |
117 * Definition of KHRONOS_APIENTRY | |
118 *------------------------------------------------------------------------- | |
119 * This follows the return type of the function and precedes the function | |
120 * name in the function prototype. | |
121 */ | |
122 #if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) | |
123 /* Win32 but not WinCE */ | |
124 # define KHRONOS_APIENTRY __stdcall | |
125 #else | |
126 # define KHRONOS_APIENTRY | |
127 #endif | |
128 | |
129 /*------------------------------------------------------------------------- | |
130 * Definition of KHRONOS_APIATTRIBUTES | |
131 *------------------------------------------------------------------------- | |
132 * This follows the closing parenthesis of the function prototype arguments. | |
133 */ | |
134 #if defined (__ARMCC_2__) | |
135 #define KHRONOS_APIATTRIBUTES __softfp | |
136 #else | |
137 #define KHRONOS_APIATTRIBUTES | |
138 #endif | |
139 | |
140 /*------------------------------------------------------------------------- | |
141 * basic type definitions | |
142 *-----------------------------------------------------------------------*/ | |
143 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC
__) || defined(__SCO__) || defined(__USLC__) | |
144 | |
145 | |
146 /* | |
147 * Using <stdint.h> | |
148 */ | |
149 #include <stdint.h> | |
150 typedef int32_t khronos_int32_t; | |
151 typedef uint32_t khronos_uint32_t; | |
152 typedef int64_t khronos_int64_t; | |
153 typedef uint64_t khronos_uint64_t; | |
154 #define KHRONOS_SUPPORT_INT64 1 | |
155 #define KHRONOS_SUPPORT_FLOAT 1 | |
156 | |
157 #elif defined(__VMS ) || defined(__sgi) | |
158 | |
159 /* | |
160 * Using <inttypes.h> | |
161 */ | |
162 #include <inttypes.h> | |
163 typedef int32_t khronos_int32_t; | |
164 typedef uint32_t khronos_uint32_t; | |
165 typedef int64_t khronos_int64_t; | |
166 typedef uint64_t khronos_uint64_t; | |
167 #define KHRONOS_SUPPORT_INT64 1 | |
168 #define KHRONOS_SUPPORT_FLOAT 1 | |
169 | |
170 #elif defined(_WIN32) && !defined(__SCITECH_SNAP__) | |
171 | |
172 /* | |
173 * Win32 | |
174 */ | |
175 typedef __int32 khronos_int32_t; | |
176 typedef unsigned __int32 khronos_uint32_t; | |
177 typedef __int64 khronos_int64_t; | |
178 typedef unsigned __int64 khronos_uint64_t; | |
179 #define KHRONOS_SUPPORT_INT64 1 | |
180 #define KHRONOS_SUPPORT_FLOAT 1 | |
181 | |
182 #elif defined(__sun__) || defined(__digital__) | |
183 | |
184 /* | |
185 * Sun or Digital | |
186 */ | |
187 typedef int khronos_int32_t; | |
188 typedef unsigned int khronos_uint32_t; | |
189 #if defined(__arch64__) || defined(_LP64) | |
190 typedef long int khronos_int64_t; | |
191 typedef unsigned long int khronos_uint64_t; | |
192 #else | |
193 typedef long long int khronos_int64_t; | |
194 typedef unsigned long long int khronos_uint64_t; | |
195 #endif /* __arch64__ */ | |
196 #define KHRONOS_SUPPORT_INT64 1 | |
197 #define KHRONOS_SUPPORT_FLOAT 1 | |
198 | |
199 #elif 0 | |
200 | |
201 /* | |
202 * Hypothetical platform with no float or int64 support | |
203 */ | |
204 typedef int khronos_int32_t; | |
205 typedef unsigned int khronos_uint32_t; | |
206 #define KHRONOS_SUPPORT_INT64 0 | |
207 #define KHRONOS_SUPPORT_FLOAT 0 | |
208 | |
209 #else | |
210 | |
211 /* | |
212 * Generic fallback | |
213 */ | |
214 #include <stdint.h> | |
215 typedef int32_t khronos_int32_t; | |
216 typedef uint32_t khronos_uint32_t; | |
217 typedef int64_t khronos_int64_t; | |
218 typedef uint64_t khronos_uint64_t; | |
219 #define KHRONOS_SUPPORT_INT64 1 | |
220 #define KHRONOS_SUPPORT_FLOAT 1 | |
221 | |
222 #endif | |
223 | |
224 | |
225 /* | |
226 * Types that are (so far) the same on all platforms | |
227 */ | |
228 typedef signed char khronos_int8_t; | |
229 typedef unsigned char khronos_uint8_t; | |
230 typedef signed short int khronos_int16_t; | |
231 typedef unsigned short int khronos_uint16_t; | |
232 typedef signed long int khronos_intptr_t; | |
233 typedef unsigned long int khronos_uintptr_t; | |
234 typedef signed long int khronos_ssize_t; | |
235 typedef unsigned long int khronos_usize_t; | |
236 | |
237 #if KHRONOS_SUPPORT_FLOAT | |
238 /* | |
239 * Float type | |
240 */ | |
241 typedef float khronos_float_t; | |
242 #endif | |
243 | |
244 #if KHRONOS_SUPPORT_INT64 | |
245 /* Time types | |
246 * | |
247 * These types can be used to represent a time interval in nanoseconds or | |
248 * an absolute Unadjusted System Time. Unadjusted System Time is the number | |
249 * of nanoseconds since some arbitrary system event (e.g. since the last | |
250 * time the system booted). The Unadjusted System Time is an unsigned | |
251 * 64 bit value that wraps back to 0 every 584 years. Time intervals | |
252 * may be either signed or unsigned. | |
253 */ | |
254 typedef khronos_uint64_t khronos_utime_nanoseconds_t; | |
255 typedef khronos_int64_t khronos_stime_nanoseconds_t; | |
256 #endif | |
257 | |
258 /* | |
259 * Dummy value used to pad enum types to 32 bits. | |
260 */ | |
261 #ifndef KHRONOS_MAX_ENUM | |
262 #define KHRONOS_MAX_ENUM 0x7FFFFFFF | |
263 #endif | |
264 | |
265 /* | |
266 * Enumerated boolean type | |
267 * | |
268 * Values other than zero should be considered to be true. Therefore | |
269 * comparisons should not be made against KHRONOS_TRUE. | |
270 */ | |
271 typedef enum { | |
272 KHRONOS_FALSE = 0, | |
273 KHRONOS_TRUE = 1, | |
274 KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM | |
275 } khronos_boolean_enum_t; | |
276 | |
277 #endif /* __khrplatform_h_ */ | |
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