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.
28 * $Revision: 1.6 $ on $Date: 2009/10/26 17:00:26 $
30 * Adopters may modify this file to suit their platform. Adopters are
31 * encouraged to submit platform specific modifications to the Khronos
32 * group so that they can be included in future versions of this file.
33 * Please submit changes by sending them to the public Khronos Bugzilla
34 * (http://khronos.org/bugzilla) by filing a bug against product
35 * "Khronos (general)" component "Registry".
37 * A predefined template which fills in some of the bug fields can be
38 * reached using http://tinyurl.com/khrplatform-h-bugreport, but you
39 * must create a Bugzilla login first.
42 * See the Implementer's Guidelines for information about where this file
43 * should be located on your system and for more details of its use:
44 * http://www.khronos.org/registry/implementers_guide.pdf
46 * This file should be included as
47 * #include <KHR/khrplatform.h>
48 * by Khronos client API header files that use its types and defines.
50 * The types in khrplatform.h should only be used to define API-specific types.
52 * Types defined in khrplatform.h:
53 * khronos_int8_t signed 8 bit
54 * khronos_uint8_t unsigned 8 bit
55 * khronos_int16_t signed 16 bit
56 * khronos_uint16_t unsigned 16 bit
57 * khronos_int32_t signed 32 bit
58 * khronos_uint32_t unsigned 32 bit
59 * khronos_int64_t signed 64 bit
60 * khronos_uint64_t unsigned 64 bit
61 * khronos_intptr_t signed same number of bits as a pointer
62 * khronos_uintptr_t unsigned same number of bits as a pointer
63 * khronos_ssize_t signed size
64 * khronos_usize_t unsigned size
65 * khronos_float_t signed 32 bit floating point
66 * khronos_time_ns_t unsigned 64 bit time in nanoseconds
67 * khronos_utime_nanoseconds_t unsigned time interval or absolute time in
69 * khronos_stime_nanoseconds_t signed time interval in nanoseconds
70 * khronos_boolean_enum_t enumerated boolean type. This should
71 * only be used as a base type when a client API's boolean type is
72 * an enum. Client APIs which use an integer or other type for
73 * booleans cannot use this as the base type for their boolean.
75 * Tokens defined in khrplatform.h:
77 * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
79 * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
80 * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
82 * Calling convention macros defined in this file:
85 * KHRONOS_APIATTRIBUTES
87 * These may be used in function prototypes as:
89 * KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
91 * int arg2) KHRONOS_APIATTRIBUTES;
94 /*-------------------------------------------------------------------------
95 * Definition of KHRONOS_APICALL
96 *-------------------------------------------------------------------------
97 * This precedes the return type of the function in the function prototype.
99 # define KHRONOS_APICALL
101 /*-------------------------------------------------------------------------
102 * Definition of KHRONOS_APIENTRY
103 *-------------------------------------------------------------------------
104 * This follows the return type of the function and precedes the function
105 * name in the function prototype.
107 # define KHRONOS_APIENTRY
109 /*-------------------------------------------------------------------------
110 * Definition of KHRONOS_APIATTRIBUTES
111 *-------------------------------------------------------------------------
112 * This follows the closing parenthesis of the function prototype arguments.
114 #if defined (__ARMCC_2__)
115 #define KHRONOS_APIATTRIBUTES __softfp
117 #define KHRONOS_APIATTRIBUTES
120 /*-------------------------------------------------------------------------
121 * basic type definitions
122 *-----------------------------------------------------------------------*/
123 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
130 typedef int32_t khronos_int32_t;
131 typedef uint32_t khronos_uint32_t;
132 typedef int64_t khronos_int64_t;
133 typedef uint64_t khronos_uint64_t;
134 #define KHRONOS_SUPPORT_INT64 1
135 #define KHRONOS_SUPPORT_FLOAT 1
138 #if defined(__VMS ) || defined(__sgi)
143 #include <inttypes.h>
144 typedef int32_t khronos_int32_t;
145 typedef uint32_t khronos_uint32_t;
146 typedef int64_t khronos_int64_t;
147 typedef uint64_t khronos_uint64_t;
148 #define KHRONOS_SUPPORT_INT64 1
149 #define KHRONOS_SUPPORT_FLOAT 1
152 #if defined(__sun__) || defined(__digital__)
157 typedef int khronos_int32_t;
158 typedef unsigned int khronos_uint32_t;
159 #if defined(__arch64__) || defined(_LP64)
160 typedef long int khronos_int64_t;
161 typedef unsigned long int khronos_uint64_t;
163 typedef long long int khronos_int64_t;
164 typedef unsigned long long int khronos_uint64_t;
165 #endif /* __arch64__ */
166 #define KHRONOS_SUPPORT_INT64 1
167 #define KHRONOS_SUPPORT_FLOAT 1
173 * Hypothetical platform with no float or int64 support
175 typedef int khronos_int32_t;
176 typedef unsigned int khronos_uint32_t;
177 #define KHRONOS_SUPPORT_INT64 0
178 #define KHRONOS_SUPPORT_FLOAT 0
186 typedef int32_t khronos_int32_t;
187 typedef uint32_t khronos_uint32_t;
188 typedef int64_t khronos_int64_t;
189 typedef uint64_t khronos_uint64_t;
190 #define KHRONOS_SUPPORT_INT64 1
191 #define KHRONOS_SUPPORT_FLOAT 1
199 * Types that are (so far) the same on all platforms
201 typedef signed char khronos_int8_t;
202 typedef unsigned char khronos_uint8_t;
203 typedef signed short int khronos_int16_t;
204 typedef unsigned short int khronos_uint16_t;
205 typedef signed long int khronos_intptr_t;
206 typedef unsigned long int khronos_uintptr_t;
207 typedef signed long int khronos_ssize_t;
208 typedef unsigned long int khronos_usize_t;
210 #if KHRONOS_SUPPORT_FLOAT
214 typedef float khronos_float_t;
217 #if KHRONOS_SUPPORT_INT64
220 * These types can be used to represent a time interval in nanoseconds or
221 * an absolute Unadjusted System Time. Unadjusted System Time is the number
222 * of nanoseconds since some arbitrary system event (e.g. since the last
223 * time the system booted). The Unadjusted System Time is an unsigned
224 * 64 bit value that wraps back to 0 every 584 years. Time intervals
225 * may be either signed or unsigned.
227 typedef khronos_uint64_t khronos_utime_nanoseconds_t;
228 typedef khronos_int64_t khronos_stime_nanoseconds_t;
232 * Dummy value used to pad enum types to 32 bits.
234 #ifndef KHRONOS_MAX_ENUM
235 #define KHRONOS_MAX_ENUM 0x7FFFFFFF
239 * Enumerated boolean type
241 * Values other than zero should be considered to be true. Therefore
242 * comparisons should not be made against KHRONOS_TRUE.
247 KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
248 } khronos_boolean_enum_t;
250 #endif /* __khrplatform_h_ */