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#ifndef __khrplatform_h_

#define __khrplatform_h_

/*

** Copyright (c) 2008-2018 The Khronos Group Inc.

**

** Permission is hereby granted, free of charge, to any person obtaining a

** copy of this software and/or associated documentation files (the

** "Materials"), to deal in the Materials without restriction, including

** without limitation the rights to use, copy, modify, merge, publish,

** distribute, sublicense, and/or sell copies of the Materials, and to

** permit persons to whom the Materials are furnished to do so, subject to

** the following conditions:

**

** The above copyright notice and this permission notice shall be included

** in all copies or substantial portions of the Materials.

**

** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

*/

/* Khronos platform-specific types and definitions.

 *

 * The master copy of khrplatform.h is maintained in the Khronos EGL

 * Registry repository at https://github.com/KhronosGroup/EGL-Registry

 * The last semantic modification to khrplatform.h was at commit ID:

 *      67a3e0864c2d75ea5287b9f3d2eb74a745936692

 *

 * Adopters may modify this file to suit their platform. Adopters are

 * encouraged to submit platform specific modifications to the Khronos

 * group so that they can be included in future versions of this file.

 * Please submit changes by filing pull requests or issues on

 * the EGL Registry repository linked above.

 *

 *

 * See the Implementer's Guidelines for information about where this file

 * should be located on your system and for more details of its use:

 *    http://www.khronos.org/registry/implementers_guide.pdf

 *

 * This file should be included as

 *        #include <KHR/khrplatform.h>

 * by Khronos client API header files that use its types and defines.

 *

 * The types in khrplatform.h should only be used to define API-specific types.

 *

 * Types defined in khrplatform.h:

 *    khronos_int8_t              signed   8  bit

 *    khronos_uint8_t             unsigned 8  bit

 *    khronos_int16_t             signed   16 bit

 *    khronos_uint16_t            unsigned 16 bit

 *    khronos_int32_t             signed   32 bit

 *    khronos_uint32_t            unsigned 32 bit

 *    khronos_int64_t             signed   64 bit

 *    khronos_uint64_t            unsigned 64 bit

 *    khronos_intptr_t            signed   same number of bits as a pointer

 *    khronos_uintptr_t           unsigned same number of bits as a pointer

 *    khronos_ssize_t             signed   size

 *    khronos_usize_t             unsigned size

 *    khronos_float_t             signed   32 bit floating point

 *    khronos_time_ns_t           unsigned 64 bit time in nanoseconds

 *    khronos_utime_nanoseconds_t unsigned time interval or absolute time in

 *                                         nanoseconds

 *    khronos_stime_nanoseconds_t signed time interval in nanoseconds

 *    khronos_boolean_enum_t      enumerated boolean type. This should

 *      only be used as a base type when a client API's boolean type is

 *      an enum. Client APIs which use an integer or other type for

 *      booleans cannot use this as the base type for their boolean.

 *

 * Tokens defined in khrplatform.h:

 *

 *    KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.

 *

 *    KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.

 *    KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.

 *

 * Calling convention macros defined in this file:

 *    KHRONOS_APICALL

 *    KHRONOS_APIENTRY

 *    KHRONOS_APIATTRIBUTES

 *

 * These may be used in function prototypes as:

 *

 *      KHRONOS_APICALL void KHRONOS_APIENTRY funcname(

 *                                  int arg1,

 *                                  int arg2) KHRONOS_APIATTRIBUTES;

 */

#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)

#   define KHRONOS_STATIC 1

#endif

/*-------------------------------------------------------------------------

 * Definition of KHRONOS_APICALL

 *-------------------------------------------------------------------------

 * This precedes the return type of the function in the function prototype.

 */

#if defined(KHRONOS_STATIC)

    /* If the preprocessor constant KHRONOS_STATIC is defined, make the

     * header compatible with static linking. */

#   define KHRONOS_APICALL

#elif defined(_WIN32)

#   define KHRONOS_APICALL __declspec(dllimport)

#elif defined (__SYMBIAN32__)

#   define KHRONOS_APICALL IMPORT_C

#elif defined(__ANDROID__)

#   define KHRONOS_APICALL __attribute__((visibility("default")))

#else

#   define KHRONOS_APICALL

#endif

/*-------------------------------------------------------------------------

 * Definition of KHRONOS_APIENTRY

 *-------------------------------------------------------------------------

 * This follows the return type of the function  and precedes the function

 * name in the function prototype.

 */

#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)

    /* Win32 but not WinCE */

#   define KHRONOS_APIENTRY __stdcall

#else

#   define KHRONOS_APIENTRY

#endif

/*-------------------------------------------------------------------------

 * Definition of KHRONOS_APIATTRIBUTES

 *-------------------------------------------------------------------------

 * This follows the closing parenthesis of the function prototype arguments.

 */

#if defined (__ARMCC_2__)

#define KHRONOS_APIATTRIBUTES __softfp

#else

#define KHRONOS_APIATTRIBUTES

#endif

/*-------------------------------------------------------------------------

 * basic type definitions

 *-----------------------------------------------------------------------*/

#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)

/*

 * Using <stdint.h>

 */

#include <stdint.h>

typedef int32_t                 khronos_int32_t;

typedef uint32_t                khronos_uint32_t;

typedef int64_t                 khronos_int64_t;

typedef uint64_t                khronos_uint64_t;

#define KHRONOS_SUPPORT_INT64   1

#define KHRONOS_SUPPORT_FLOAT   1

/*

 * To support platform where unsigned long cannot be used interchangeably with

 * inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t.

 * Ideally, we could just use (u)intptr_t everywhere, but this could result in

 * ABI breakage if khronos_uintptr_t is changed from unsigned long to

 * unsigned long long or similar (this results in different C++ name mangling).

 * To avoid changes for existing platforms, we restrict usage of intptr_t to

 * platforms where the size of a pointer is larger than the size of long.

 */

#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__)

#if __SIZEOF_POINTER__ > __SIZEOF_LONG__

#define KHRONOS_USE_INTPTR_T

#endif

#endif

#elif defined(__VMS ) || defined(__sgi)

/*

 * Using <inttypes.h>

 */

#include <inttypes.h>

typedef int32_t                 khronos_int32_t;

typedef uint32_t                khronos_uint32_t;

typedef int64_t                 khronos_int64_t;

typedef uint64_t                khronos_uint64_t;

#define KHRONOS_SUPPORT_INT64   1

#define KHRONOS_SUPPORT_FLOAT   1

#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)

/*

 * Win32

 */

typedef __int32                 khronos_int32_t;

typedef unsigned __int32        khronos_uint32_t;

typedef __int64                 khronos_int64_t;

typedef unsigned __int64        khronos_uint64_t;

#define KHRONOS_SUPPORT_INT64   1

#define KHRONOS_SUPPORT_FLOAT   1

#elif defined(__sun__) || defined(__digital__)

/*

 * Sun or Digital

 */

typedef int                     khronos_int32_t;

typedef unsigned int            khronos_uint32_t;

#if defined(__arch64__) || defined(_LP64)

typedef long int                khronos_int64_t;

typedef unsigned long int       khronos_uint64_t;

#else

typedef long long int           khronos_int64_t;

typedef unsigned long long int  khronos_uint64_t;

#endif /* __arch64__ */

#define KHRONOS_SUPPORT_INT64   1

#define KHRONOS_SUPPORT_FLOAT   1

#elif 0

/*

 * Hypothetical platform with no float or int64 support

 */

typedef int                     khronos_int32_t;

typedef unsigned int            khronos_uint32_t;

#define KHRONOS_SUPPORT_INT64   0

#define KHRONOS_SUPPORT_FLOAT   0

#else

/*

 * Generic fallback

 */

#include <stdint.h>

typedef int32_t                 khronos_int32_t;

typedef uint32_t                khronos_uint32_t;

typedef int64_t                 khronos_int64_t;

typedef uint64_t                khronos_uint64_t;

#define KHRONOS_SUPPORT_INT64   1

#define KHRONOS_SUPPORT_FLOAT   1

#endif

/*

 * Types that are (so far) the same on all platforms

 */

typedef signed   char          khronos_int8_t;

typedef unsigned char          khronos_uint8_t;

typedef signed   short int     khronos_int16_t;

typedef unsigned short int     khronos_uint16_t;

/*

 * Types that differ between LLP64 and LP64 architectures - in LLP64,

 * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears

 * to be the only LLP64 architecture in current use.

 */

#ifdef KHRONOS_USE_INTPTR_T

typedef intptr_t               khronos_intptr_t;

typedef uintptr_t              khronos_uintptr_t;

#elif defined(_WIN64)

typedef signed   long long int khronos_intptr_t;

typedef unsigned long long int khronos_uintptr_t;

#else

typedef signed   long  int     khronos_intptr_t;

typedef unsigned long  int     khronos_uintptr_t;

#endif

#if defined(_WIN64)

typedef signed   long long int khronos_ssize_t;

typedef unsigned long long int khronos_usize_t;

#else

typedef signed   long  int     khronos_ssize_t;

typedef unsigned long  int     khronos_usize_t;

#endif

#if KHRONOS_SUPPORT_FLOAT

/*

 * Float type

 */

typedef          float         khronos_float_t;

#endif

#if KHRONOS_SUPPORT_INT64

/* Time types

 *

 * These types can be used to represent a time interval in nanoseconds or

 * an absolute Unadjusted System Time.  Unadjusted System Time is the number

 * of nanoseconds since some arbitrary system event (e.g. since the last

 * time the system booted).  The Unadjusted System Time is an unsigned

 * 64 bit value that wraps back to 0 every 584 years.  Time intervals

 * may be either signed or unsigned.

 */

typedef khronos_uint64_t       khronos_utime_nanoseconds_t;

typedef khronos_int64_t        khronos_stime_nanoseconds_t;

#endif

/*

 * Dummy value used to pad enum types to 32 bits.

 */

#ifndef KHRONOS_MAX_ENUM

#define KHRONOS_MAX_ENUM 0x7FFFFFFF

#endif

/*

 * Enumerated boolean type

 *

 * Values other than zero should be considered to be true.  Therefore

 * comparisons should not be made against KHRONOS_TRUE.

 */

typedef enum {

    KHRONOS_FALSE = 0,

    KHRONOS_TRUE  = 1,

    KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM

} khronos_boolean_enum_t;

#endif /* __khrplatform_h_ */