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 /* Platform-specific types and definitions.
28  * $Revision: 7244 $ on $Date: 2009-01-20 17:06:59 -0800 (Tue, 20 Jan 2009) $
29  *
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".
36  *
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.
40  *
41  *
42  * See the Implementer's Guidelines for information about where this file
43  * should be located on your system.
44  *    http://www.khronos.org/registry/implementers_guide.pdf
45  *
46  *
47  * This file should be included as
48  *        #include <KHR/khrplatform.h>
49  * by the Khronos API header file that uses its types and defines.
50  *
51  * The types in this file should only be used to define API-specific types.
52  * Types defined in this file:
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
68  *                                         nanoseconds
69  *    khronos_stime_nanoseconds_t signed time interval in nanoseconds
70  *
71  * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
72  * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
73  *
74  *
75  * Macros defined in this file:
76  *    KHRONOS_APICALL
77  *    KHRONOS_APIENTRY
78  *    KHRONOS_APIATTRIBUTES
79  * These may be used in function prototypes as:
80  *      KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
81  *                                  int arg1,
82  *                                  int arg2) KHRONOS_APIATTRIBUTES;
83  */
84 
85 /*-------------------------------------------------------------------------
86  * Definition of KHRONOS_APICALL
87  *-------------------------------------------------------------------------
88  * This precedes the return type of the function in the function prototype.
89  */
90 #if defined(_WIN32) && !defined(__SCITECH_SNAP__)
91 #   define KHRONOS_APICALL __declspec(dllimport)
92 #elif defined (__SYMBIAN32__)
93 #   define KHRONOS_APICALL IMPORT_C
94 #elif defined(__ANDROID__)
95 #   include <sys/cdefs.h>
96 #   define KHRONOS_APICALL __attribute__((visibility("default"))) __NDK_FPABI__
97 #else
98 #   define KHRONOS_APICALL
99 #endif
100 
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.
106  */
107 #if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
108     /* Win32 but not WinCE */
109 #   define KHRONOS_APIENTRY __stdcall
110 #else
111 #   define KHRONOS_APIENTRY
112 #endif
113 
114 /*-------------------------------------------------------------------------
115  * Definition of KHRONOS_APIATTRIBUTES
116  *-------------------------------------------------------------------------
117  * This follows the closing parenthesis of the function prototype arguments.
118  */
119 #if defined (__ARMCC_2__)
120 #define KHRONOS_APIATTRIBUTES __softfp
121 #else
122 #define KHRONOS_APIATTRIBUTES
123 #endif
124 
125 /*-------------------------------------------------------------------------
126  * basic type definitions
127  *-----------------------------------------------------------------------*/
128 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
129 
130 
131 /*
132  * Using <stdint.h>
133  */
134 #include <stdint.h>
135 typedef int32_t                 khronos_int32_t;
136 typedef uint32_t                khronos_uint32_t;
137 typedef int64_t                 khronos_int64_t;
138 typedef uint64_t                khronos_uint64_t;
139 #define KHRONOS_SUPPORT_INT64   1
140 #define KHRONOS_SUPPORT_FLOAT   1
141 
142 #elif defined(__VMS ) || defined(__sgi)
143 
144 /*
145  * Using <inttypes.h>
146  */
147 #include <inttypes.h>
148 typedef int32_t                 khronos_int32_t;
149 typedef uint32_t                khronos_uint32_t;
150 typedef int64_t                 khronos_int64_t;
151 typedef uint64_t                khronos_uint64_t;
152 #define KHRONOS_SUPPORT_INT64   1
153 #define KHRONOS_SUPPORT_FLOAT   1
154 
155 #elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
156 
157 /*
158  * Win32
159  */
160 typedef __int32                 khronos_int32_t;
161 typedef unsigned __int32        khronos_uint32_t;
162 typedef __int64                 khronos_int64_t;
163 typedef unsigned __int64        khronos_uint64_t;
164 #define KHRONOS_SUPPORT_INT64   1
165 #define KHRONOS_SUPPORT_FLOAT   1
166 
167 #elif defined(__sun__) || defined(__digital__)
168 
169 /*
170  * Sun or Digital
171  */
172 typedef int                     khronos_int32_t;
173 typedef unsigned int            khronos_uint32_t;
174 #if defined(__arch64__) || defined(_LP64)
175 typedef long int                khronos_int64_t;
176 typedef unsigned long int       khronos_uint64_t;
177 #else
178 typedef long long int           khronos_int64_t;
179 typedef unsigned long long int  khronos_uint64_t;
180 #endif /* __arch64__ */
181 #define KHRONOS_SUPPORT_INT64   1
182 #define KHRONOS_SUPPORT_FLOAT   1
183 
184 #elif 0
185 
186 /*
187  * Hypothetical platform with no float or int64 support
188  */
189 typedef int                     khronos_int32_t;
190 typedef unsigned int            khronos_uint32_t;
191 #define KHRONOS_SUPPORT_INT64   0
192 #define KHRONOS_SUPPORT_FLOAT   0
193 
194 #else
195 
196 /*
197  * Generic fallback
198  */
199 #include <stdint.h>
200 typedef int32_t                 khronos_int32_t;
201 typedef uint32_t                khronos_uint32_t;
202 typedef int64_t                 khronos_int64_t;
203 typedef uint64_t                khronos_uint64_t;
204 #define KHRONOS_SUPPORT_INT64   1
205 #define KHRONOS_SUPPORT_FLOAT   1
206 
207 #endif
208 
209 
210 /*
211  * Types that are (so far) the same on all platforms
212  */
213 typedef signed   char          khronos_int8_t;
214 typedef unsigned char          khronos_uint8_t;
215 typedef signed   short int     khronos_int16_t;
216 typedef unsigned short int     khronos_uint16_t;
217 typedef signed   long  int     khronos_intptr_t;
218 typedef unsigned long  int     khronos_uintptr_t;
219 typedef signed   long  int     khronos_ssize_t;
220 typedef unsigned long  int     khronos_usize_t;
221 
222 #if KHRONOS_SUPPORT_FLOAT
223 /*
224  * Float type
225  */
226 typedef          float         khronos_float_t;
227 #endif
228 
229 #if KHRONOS_SUPPORT_INT64
230 /* Time types
231  *
232  * These types can be used to represent a time interval in nanoseconds or
233  * an absolute Unadjusted System Time.  Unadjusted System Time is the number
234  * of nanoseconds since some arbitrary system event (e.g. since the last
235  * time the system booted).  The Unadjusted System Time is an unsigned
236  * 64 bit value that wraps back to 0 every 584 years.  Time intervals
237  * may be either signed or unsigned.
238  */
239 typedef khronos_uint64_t       khronos_utime_nanoseconds_t;
240 typedef khronos_int64_t        khronos_stime_nanoseconds_t;
241 #endif
242 
243 
244 #endif /* __khrplatform_h_ */
245