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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | pmbaty | 1 | /* |
| 2 | * This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>. |
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| 3 | * It is copyright by its individual contributors, as recorded in the |
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| 4 | * project's Git history. See COPYING.txt at the top level for license |
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| 5 | * terms and a link to the Git history. |
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| 6 | */ |
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| 7 | |||
| 8 | /* OpenGL extensions: |
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| 9 | * We use global function pointer for any extension function we want to use. |
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| 10 | */ |
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| 11 | |||
| 12 | #pragma once |
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| 13 | |||
| 14 | #include <cstdint> |
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| 15 | |||
| 16 | #if defined(__APPLE__) && defined(__MACH__) |
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| 17 | #include <OpenGL/gl.h> |
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| 18 | #else |
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| 19 | #include <GL/gl.h> |
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| 20 | #endif |
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| 21 | |||
| 22 | /* global extension stuff (from glext.h) |
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| 23 | */ |
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| 24 | #ifndef APIENTRY |
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| 25 | #define APIENTRY |
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| 26 | #endif |
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| 27 | #ifndef APIENTRYP |
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| 28 | #define APIENTRYP APIENTRY * |
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| 29 | #endif |
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| 30 | #ifndef GLAPI |
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| 31 | #define GLAPI extern |
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| 32 | #endif |
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| 33 | |||
| 34 | typedef int64_t GLint64; |
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| 35 | typedef uint64_t GLuint64; |
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| 36 | |||
| 37 | /* GL_ARB_sync */ |
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| 38 | typedef struct __GLsync *GLsync; |
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| 39 | |||
| 40 | typedef GLsync (APIENTRYP PFNGLFENCESYNCPROC) (GLenum condition, GLbitfield flags); |
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| 41 | typedef GLboolean (APIENTRYP PFNGLISSYNCPROC) (GLsync sync); |
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| 42 | typedef void (APIENTRYP PFNGLDELETESYNCPROC) (GLsync sync); |
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| 43 | typedef GLenum (APIENTRYP PFNGLCLIENTWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout); |
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| 44 | typedef void (APIENTRYP PFNGLWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout); |
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| 45 | |||
| 46 | #define GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001 |
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| 47 | #define GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117 |
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| 48 | #define GL_TIMEOUT_EXPIRED 0x911B |
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| 49 | |||
| 50 | /* GL_EXT_texture */ |
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| 51 | #ifndef GL_VERSION_1_1 |
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| 52 | #ifdef GL_EXT_texture |
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| 53 | #define GL_INTENSITY4 GL_INTENSITY4_EXT |
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| 54 | #define GL_INTENSITY8 GL_INTENSITY8_EXT |
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| 55 | #endif |
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| 56 | #endif |
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| 57 | |||
| 58 | /* GL_EXT_texture_filter_anisotropic */ |
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| 59 | #ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT |
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| 60 | #define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE |
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| 61 | #endif |
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| 62 | #ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT |
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| 63 | #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF |
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| 64 | #endif |
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| 65 | |||
| 66 | namespace dcx { |
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| 67 | |||
| 68 | extern bool ogl_have_ARB_sync; |
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| 69 | extern PFNGLFENCESYNCPROC glFenceSyncFunc; |
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| 70 | extern PFNGLDELETESYNCPROC glDeleteSyncFunc; |
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| 71 | extern PFNGLCLIENTWAITSYNCPROC glClientWaitSyncFunc; |
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| 72 | extern GLfloat ogl_maxanisotropy; |
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| 73 | |||
| 74 | /* Global initialization: |
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| 75 | * will need an OpenGL context and intialize all function pointers. |
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| 76 | */ |
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| 77 | void ogl_extensions_init(); |
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| 78 | |||
| 79 | } |