summaryrefslogtreecommitdiffstats
path: root/libvo/gl_common.h
blob: b02e1d2b8db260d9dd0e5af6250060ff7b712fca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
/*
 * This file is part of MPlayer.
 *
 * MPlayer is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * MPlayer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * You can alternatively redistribute this file and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 */

#ifndef MPLAYER_GL_COMMON_H
#define MPLAYER_GL_COMMON_H

#include <stdio.h>
#include <stdint.h>

#include "config.h"
#include "mp_msg.h"

#include "video_out.h"
#include "csputils.h"

#ifdef CONFIG_GL_WIN32
#include <windows.h>
#include "w32_common.h"
#endif
#ifdef CONFIG_GL_X11
#include <X11/Xlib.h>
#include <GL/glx.h>
#include "x11_common.h"
// This old-vo wrapper macro would conflict with the struct member
#undef update_xinerama_info
#endif
#include <GL/gl.h>

// workaround for some gl.h headers
#ifndef GLAPIENTRY
#ifdef APIENTRY
#define GLAPIENTRY APIENTRY
#elif defined(CONFIG_GL_WIN32)
#define GLAPIENTRY __stdcall
#else
#define GLAPIENTRY
#endif
#endif

/**
 * \defgroup glextdefines OpenGL extension defines
 *
 * conditionally define all extension defines used.
 * vendor specific extensions should be marked as such
 * (e.g. _NV), _ARB is not used to ease readability.
 * \{
 */
#ifndef GL_TEXTURE_3D
#define GL_TEXTURE_3D 0x806F
#endif
#ifndef GL_TEXTURE_WRAP_R
#define GL_TEXTURE_WRAP_R 0x8072
#endif
#ifndef GL_CLAMP_TO_EDGE
#define GL_CLAMP_TO_EDGE 0x812F
#endif
#ifndef GL_GENERATE_MIPMAP
#define GL_GENERATE_MIPMAP 0x8191
#endif
#ifndef GL_TEXT_FRAGMENT_SHADER_ATI
#define GL_TEXT_FRAGMENT_SHADER_ATI 0x8200
#endif
#ifndef GL_FRAGMENT_SHADER_ATI
#define GL_FRAGMENT_SHADER_ATI 0x8920
#endif
#ifndef GL_NUM_FRAGMENT_REGISTERS_ATI
#define GL_NUM_FRAGMENT_REGISTERS_ATI 0x896E
#endif
#ifndef GL_REG_0_ATI
#define GL_REG_0_ATI 0x8921
#endif
#ifndef GL_REG_1_ATI
#define GL_REG_1_ATI 0x8922
#endif
#ifndef GL_REG_2_ATI
#define GL_REG_2_ATI 0x8923
#endif
#ifndef GL_CON_0_ATI
#define GL_CON_0_ATI 0x8941
#endif
#ifndef GL_CON_1_ATI
#define GL_CON_1_ATI 0x8942
#endif
#ifndef GL_CON_2_ATI
#define GL_CON_2_ATI 0x8943
#endif
#ifndef GL_CON_3_ATI
#define GL_CON_3_ATI 0x8944
#endif
#ifndef GL_ADD_ATI
#define GL_ADD_ATI 0x8963
#endif
#ifndef GL_MUL_ATI
#define GL_MUL_ATI 0x8964
#endif
#ifndef GL_MAD_ATI
#define GL_MAD_ATI 0x8968
#endif
#ifndef GL_SWIZZLE_STR_ATI
#define GL_SWIZZLE_STR_ATI 0x8976
#endif
#ifndef GL_4X_BIT_ATI
#define GL_4X_BIT_ATI 2
#endif
#ifndef GL_8X_BIT_ATI
#define GL_8X_BIT_ATI 4
#endif
#ifndef GL_BIAS_BIT_ATI
#define GL_BIAS_BIT_ATI 8
#endif
#ifndef GL_MAX_TEXTURE_UNITS
#define GL_MAX_TEXTURE_UNITS 0x84E2
#endif
#ifndef GL_TEXTURE0
#define GL_TEXTURE0 0x84C0
#endif
#ifndef GL_TEXTURE1
#define GL_TEXTURE1 0x84C1
#endif
#ifndef GL_TEXTURE2
#define GL_TEXTURE2 0x84C2
#endif
#ifndef GL_TEXTURE3
#define GL_TEXTURE3 0x84C3
#endif
#ifndef GL_TEXTURE_RECTANGLE
#define GL_TEXTURE_RECTANGLE 0x84F5
#endif
#ifndef GL_PIXEL_UNPACK_BUFFER
#define GL_PIXEL_UNPACK_BUFFER 0x88EC
#endif
#ifndef GL_STREAM_DRAW
#define GL_STREAM_DRAW 0x88E0
#endif
#ifndef GL_DYNAMIC_DRAW
#define GL_DYNAMIC_DRAW 0x88E8
#endif
#ifndef GL_WRITE_ONLY
#define GL_WRITE_ONLY 0x88B9
#endif
#ifndef GL_BGR
#define GL_BGR 0x80E0
#endif
#ifndef GL_BGRA
#define GL_BGRA 0x80E1
#endif
#ifndef GL_UNSIGNED_BYTE_3_3_2
#define GL_UNSIGNED_BYTE_3_3_2 0x8032
#endif
#ifndef GL_UNSIGNED_BYTE_2_3_3_REV
#define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362
#endif
#ifndef GL_UNSIGNED_SHORT_4_4_4_4
#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033
#endif
#ifndef GL_UNSIGNED_SHORT_4_4_4_4_REV
#define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365
#endif
#ifndef GL_UNSIGNED_SHORT_5_6_5
#define GL_UNSIGNED_SHORT_5_6_5 0x8363
#endif
#ifndef GL_UNSIGNED_INT_8_8_8_8
#define GL_UNSIGNED_INT_8_8_8_8 0x8035
#endif
#ifndef GL_UNSIGNED_INT_8_8_8_8_REV
#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
#endif
#ifndef GL_UNSIGNED_SHORT_5_6_5_REV
#define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364
#endif
#ifndef GL_UNSIGNED_INT_10_10_10_2
#define GL_UNSIGNED_INT_10_10_10_2 0x8036
#endif
#ifndef GL_UNSIGNED_INT_2_10_10_10_REV
#define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368
#endif
#ifndef GL_UNSIGNED_SHORT_5_5_5_1
#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034
#endif
#ifndef GL_UNSIGNED_SHORT_1_5_5_5_REV
#define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366
#endif
#ifndef GL_UNSIGNED_SHORT_8_8
#define GL_UNSIGNED_SHORT_8_8 0x85BA
#endif
#ifndef GL_UNSIGNED_SHORT_8_8_REV
#define GL_UNSIGNED_SHORT_8_8_REV 0x85BB
#endif
#ifndef GL_YCBCR_MESA
#define GL_YCBCR_MESA 0x8757
#endif
#ifndef GL_RGB32F
#define GL_RGB32F 0x8815
#endif
#ifndef GL_FLOAT_RGB32_NV
#define GL_FLOAT_RGB32_NV 0x8889
#endif
#ifndef GL_LUMINANCE16
#define GL_LUMINANCE16 0x8042
#endif
#ifndef GL_R16
#define GL_R16 0x822A
#endif
#ifndef GL_UNPACK_CLIENT_STORAGE_APPLE
#define GL_UNPACK_CLIENT_STORAGE_APPLE 0x85B2
#endif
#ifndef GL_FRAGMENT_PROGRAM
#define GL_FRAGMENT_PROGRAM 0x8804
#endif
#ifndef GL_PROGRAM_FORMAT_ASCII
#define GL_PROGRAM_FORMAT_ASCII 0x8875
#endif
#ifndef GL_PROGRAM_ERROR_POSITION
#define GL_PROGRAM_ERROR_POSITION 0x864B
#endif
#ifndef GL_MAX_TEXTURE_IMAGE_UNITS
#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872
#endif
#ifndef GL_PROGRAM_ERROR_STRING
#define GL_PROGRAM_ERROR_STRING 0x8874
#endif
/** \} */ // end of glextdefines group

struct GL;
typedef struct GL GL;

void glAdjustAlignment(GL *gl, int stride);

const char *glValName(GLint value);

int glFindFormat(uint32_t format, int have_texture_rg, int *bpp,
                 GLint *gl_texfmt, GLenum *gl_format, GLenum *gl_type);
int glFmt2bpp(GLenum format, GLenum type);
void glCreateClearTex(GL *gl, GLenum target, GLenum fmt, GLenum format,
                      GLenum type, GLint filter, int w, int h,
                      unsigned char val);
int glCreatePPMTex(GL *gl, GLenum target, GLenum fmt, GLint filter,
                   FILE *f, int *width, int *height, int *maxval);
void glUploadTex(GL *gl, GLenum target, GLenum format, GLenum type,
                 const void *dataptr, int stride,
                 int x, int y, int w, int h, int slice);
void glDownloadTex(GL *gl, GLenum target, GLenum format, GLenum type,
                   void *dataptr, int stride);
void glDrawTex(GL *gl, GLfloat x, GLfloat y, GLfloat w, GLfloat h,
               GLfloat tx, GLfloat ty, GLfloat tw, GLfloat th,
               int sx, int sy, int rect_tex, int is_yv12, int flip);
int loadGPUProgram(GL *gl, GLenum target, char *prog);

/** \addtogroup glconversion
 * \{ */
//! do not use YUV conversion, this should always stay 0
#define YUV_CONVERSION_NONE 0
//! use nVidia specific register combiners for YUV conversion
//! implementation has been removed
#define YUV_CONVERSION_COMBINERS 1
//! use a fragment program for YUV conversion
#define YUV_CONVERSION_FRAGMENT 2
//! use a fragment program for YUV conversion with gamma using POW
#define YUV_CONVERSION_FRAGMENT_POW 3
//! use a fragment program with additional table lookup for YUV conversion
#define YUV_CONVERSION_FRAGMENT_LOOKUP 4
//! use ATI specific register combiners ("fragment program")
#define YUV_CONVERSION_COMBINERS_ATI 5
//! use a fragment program with 3D table lookup for YUV conversion
#define YUV_CONVERSION_FRAGMENT_LOOKUP3D 6
//! use ATI specific "text" register combiners ("fragment program")
#define YUV_CONVERSION_TEXT_FRAGMENT 7
//! use normal bilinear scaling for textures
#define YUV_SCALER_BILIN 0
//! use higher quality bicubic scaling for textures
#define YUV_SCALER_BICUB 1
//! use cubic scaling in X and normal linear scaling in Y direction
#define YUV_SCALER_BICUB_X 2
//! use cubic scaling without additional lookup texture
#define YUV_SCALER_BICUB_NOTEX 3
#define YUV_SCALER_UNSHARP 4
#define YUV_SCALER_UNSHARP2 5
//! mask for conversion type
#define YUV_CONVERSION_MASK 0xF
//! mask for scaler type
#define YUV_SCALER_MASK 0xF
//! shift value for luminance scaler type
#define YUV_LUM_SCALER_SHIFT 8
//! shift value for chrominance scaler type
#define YUV_CHROM_SCALER_SHIFT 12
//! extract conversion out of type
#define YUV_CONVERSION(t) ((t) & YUV_CONVERSION_MASK)
//! extract luminance scaler out of type
#define YUV_LUM_SCALER(t) (((t) >> YUV_LUM_SCALER_SHIFT) & YUV_SCALER_MASK)
//! extract chrominance scaler out of type
#define YUV_CHROM_SCALER(t) (((t) >> YUV_CHROM_SCALER_SHIFT) & YUV_SCALER_MASK)
#define SET_YUV_CONVERSION(c)   ((c) & YUV_CONVERSION_MASK)
#define SET_YUV_LUM_SCALER(s)   (((s) & YUV_SCALER_MASK) << YUV_LUM_SCALER_SHIFT)
#define SET_YUV_CHROM_SCALER(s) (((s) & YUV_SCALER_MASK) << YUV_CHROM_SCALER_SHIFT)
//! returns whether the yuv conversion supports large brightness range etc.
static inline int glYUVLargeRange(int conv)
{
    switch (conv) {
    case YUV_CONVERSION_NONE:
    case YUV_CONVERSION_COMBINERS_ATI:
    case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
    case YUV_CONVERSION_TEXT_FRAGMENT:
        return 0;
    }
    return 1;
}
/** \} */

typedef struct {
    GLenum target;
    int type;
    struct mp_csp_params csp_params;
    int texw;
    int texh;
    int chrom_texw;
    int chrom_texh;
    float filter_strength;
} gl_conversion_params_t;

int glAutodetectYUVConversion(GL *gl);
void glSetupYUVConversion(GL *gl, gl_conversion_params_t *params);
void glEnableYUVConversion(GL *gl, GLenum target, int type);
void glDisableYUVConversion(GL *gl, GLenum target, int type);

#define GL_3D_RED_CYAN        1
#define GL_3D_GREEN_MAGENTA   2
#define GL_3D_QUADBUFFER      3

void glEnable3DLeft(GL *gl, int type);
void glEnable3DRight(GL *gl, int type);
void glDisable3D(GL *gl, int type);

/** \addtogroup glcontext
 * \{ */
//! could not set new window, will continue drawing into the old one.
#define SET_WINDOW_FAILED -1
//! new window is set, could even transfer the OpenGL context.
#define SET_WINDOW_OK 0
//! new window is set, but the OpenGL context needs to be reinitialized.
#define SET_WINDOW_REINIT 1
/** \} */

enum MPGLType {
    GLTYPE_AUTO,
    GLTYPE_COCOA,
    GLTYPE_W32,
    GLTYPE_X11,
    GLTYPE_SDL,
};

typedef struct MPGLContext {
    GL *gl;
    enum MPGLType type;
    struct vo *vo;
    union {
        int w32;
#ifdef CONFIG_GL_X11
        XVisualInfo *x11;
#endif
    } vinfo;
    union {
#ifdef CONFIG_GL_WIN32
        HGLRC w32;
#endif
#ifdef CONFIG_GL_X11
        GLXContext x11;
#endif
    } context;
    int (*create_window)(struct MPGLContext *ctx, uint32_t d_width,
                         uint32_t d_height, uint32_t flags);
    int (*setGlWindow)(struct MPGLContext *);
    void (*releaseGlContext)(struct MPGLContext *);
    void (*swapGlBuffers)(struct MPGLContext *);
    void (*update_xinerama_info)(struct vo *vo);
    void (*border)(struct vo *vo);
    int (*check_events)(struct vo *vo);
    void (*fullscreen)(struct vo *vo);
    void (*ontop)(struct vo *vo);
} MPGLContext;

MPGLContext *init_mpglcontext(enum MPGLType type, struct vo *vo);
void uninit_mpglcontext(MPGLContext *ctx);

//function pointers loaded from the OpenGL library
struct GL {
    void (GLAPIENTRY *Begin)(GLenum);
    void (GLAPIENTRY *End)(void);
    void (GLAPIENTRY *Viewport)(GLint, GLint, GLsizei, GLsizei);
    void (GLAPIENTRY *MatrixMode)(GLenum);
    void (GLAPIENTRY *LoadIdentity)(void);
    void (GLAPIENTRY *Translated)(double, double, double);
    void (GLAPIENTRY *Scaled)(double, double, double);
    void (GLAPIENTRY *Ortho)(double, double, double, double, double,double);
    void (GLAPIENTRY *Frustum)(double, double, double, double, double, double);
    void (GLAPIENTRY *PushMatrix)(void);
    void (GLAPIENTRY *PopMatrix)(void);
    void (GLAPIENTRY *Clear)(GLbitfield);
    GLuint (GLAPIENTRY *GenLists)(GLsizei);
    void (GLAPIENTRY *DeleteLists)(GLuint, GLsizei);
    void (GLAPIENTRY *NewList)(GLuint, GLenum);
    void (GLAPIENTRY *EndList)(void);
    void (GLAPIENTRY *CallList)(GLuint);
    void (GLAPIENTRY *CallLists)(GLsizei, GLenum, const GLvoid *);
    void (GLAPIENTRY *GenTextures)(GLsizei, GLuint *);
    void (GLAPIENTRY *DeleteTextures)(GLsizei, const GLuint *);
    void (GLAPIENTRY *TexEnvf)(GLenum, GLenum, GLfloat);
    void (GLAPIENTRY *TexEnvi)(GLenum, GLenum, GLint);
    void (GLAPIENTRY *Color4ub)(GLubyte, GLubyte, GLubyte, GLubyte);
    void (GLAPIENTRY *Color3f)(GLfloat, GLfloat, GLfloat);
    void (GLAPIENTRY *Color4f)(GLfloat, GLfloat, GLfloat, GLfloat);
    void (GLAPIENTRY *ClearColor)(GLclampf, GLclampf, GLclampf, GLclampf);
    void (GLAPIENTRY *ClearDepth)(GLclampd);
    void (GLAPIENTRY *DepthFunc)(GLenum);
    void (GLAPIENTRY *Enable)(GLenum);
    void (GLAPIENTRY *Disable)(GLenum);
    const GLubyte *(GLAPIENTRY * GetString)(GLenum);
    void (GLAPIENTRY *DrawBuffer)(GLenum);
    void (GLAPIENTRY *DepthMask)(GLboolean);
    void (GLAPIENTRY *BlendFunc)(GLenum, GLenum);
    void (GLAPIENTRY *Flush)(void);
    void (GLAPIENTRY *Finish)(void);
    void (GLAPIENTRY *PixelStorei)(GLenum, GLint);
    void (GLAPIENTRY *TexImage1D)(GLenum, GLint, GLint, GLsizei, GLint,
                                  GLenum, GLenum, const GLvoid *);
    void (GLAPIENTRY *TexImage2D)(GLenum, GLint, GLint, GLsizei, GLsizei,
                                  GLint, GLenum, GLenum, const GLvoid *);
    void (GLAPIENTRY *TexSubImage2D)(GLenum, GLint, GLint, GLint,
                                     GLsizei, GLsizei, GLenum, GLenum,
                                     const GLvoid *);
    void (GLAPIENTRY *GetTexImage)(GLenum, GLint, GLenum, GLenum, GLvoid *);
    void (GLAPIENTRY *TexParameteri)(GLenum, GLenum, GLint);
    void (GLAPIENTRY *TexParameterf)(GLenum, GLenum, GLfloat);
    void (GLAPIENTRY *TexParameterfv)(GLenum, GLenum, const GLfloat *);
    void (GLAPIENTRY *TexCoord2f)(GLfloat, GLfloat);
    void (GLAPIENTRY *TexCoord2fv)(const GLfloat *);
    void (GLAPIENTRY *Vertex2f)(GLfloat, GLfloat);
    void (GLAPIENTRY *Vertex3f)(GLfloat, GLfloat, GLfloat);
    void (GLAPIENTRY *Normal3f)(GLfloat, GLfloat, GLfloat);
    void (GLAPIENTRY *Lightfv)(GLenum, GLenum, const GLfloat *);
    void (GLAPIENTRY *ColorMaterial)(GLenum, GLenum);
    void (GLAPIENTRY *ShadeModel)(GLenum);
    void (GLAPIENTRY *GetIntegerv)(GLenum, GLint *);
    void (GLAPIENTRY *ColorMask)(GLboolean, GLboolean, GLboolean, GLboolean);
    void (GLAPIENTRY *ReadPixels)(GLint, GLint, GLsizei, GLsizei, GLenum,
                                  GLenum, GLvoid *);
    void (GLAPIENTRY *ReadBuffer)(GLenum);

    // OpenGL extension functions
    void (GLAPIENTRY *GenBuffers)(GLsizei, GLuint *);
    void (GLAPIENTRY *DeleteBuffers)(GLsizei, const GLuint *);
    void (GLAPIENTRY *BindBuffer)(GLenum, GLuint);
    GLvoid * (GLAPIENTRY * MapBuffer)(GLenum, GLenum);
    GLboolean (GLAPIENTRY *UnmapBuffer)(GLenum);
    void (GLAPIENTRY *BufferData)(GLenum, intptr_t, const GLvoid *, GLenum);
    void (GLAPIENTRY *BeginFragmentShader)(void);
    void (GLAPIENTRY *EndFragmentShader)(void);
    void (GLAPIENTRY *SampleMap)(GLuint, GLuint, GLenum);
    void (GLAPIENTRY *ColorFragmentOp2)(GLenum, GLuint, GLuint, GLuint, GLuint,
                                        GLuint, GLuint, GLuint, GLuint, GLuint);
    void (GLAPIENTRY *ColorFragmentOp3)(GLenum, GLuint, GLuint, GLuint, GLuint,
                                        GLuint, GLuint, GLuint, GLuint, GLuint,
                                        GLuint, GLuint, GLuint);
    void (GLAPIENTRY *SetFragmentShaderConstant)(GLuint, const GLfloat *);
    void (GLAPIENTRY *ActiveTexture)(GLenum);
    void (GLAPIENTRY *BindTexture)(GLenum, GLuint);
    void (GLAPIENTRY *MultiTexCoord2f)(GLenum, GLfloat, GLfloat);
    void (GLAPIENTRY *GenPrograms)(GLsizei, GLuint *);
    void (GLAPIENTRY *DeletePrograms)(GLsizei, const GLuint *);
    void (GLAPIENTRY *BindProgram)(GLenum, GLuint);
    void (GLAPIENTRY *ProgramString)(GLenum, GLenum, GLsizei, const GLvoid *);
    void (GLAPIENTRY *GetProgramiv)(GLenum, GLenum, GLint *);
    void (GLAPIENTRY *ProgramEnvParameter4f)(GLenum, GLuint, GLfloat, GLfloat,
                                             GLfloat, GLfloat);
    int (GLAPIENTRY *SwapInterval)(int);
    void (GLAPIENTRY *TexImage3D)(GLenum, GLint, GLenum, GLsizei, GLsizei,
                                  GLsizei, GLint, GLenum, GLenum,
                                  const GLvoid *);
};

#endif /* MPLAYER_GL_COMMON_H */