libvo/gl_common.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * You can alternatively redistribute this file and/or
  19  * modify it under the terms of the GNU Lesser General Public
  20  * License as published by the Free Software Foundation; either
  21  * version 2.1 of the License, or (at your option) any later version.
  22  */
  23
  24 #ifndef MPLAYER_GL_COMMON_H
  25 #define MPLAYER_GL_COMMON_H
  26
  27 #include <stdio.h>
  28 #include <stdint.h>
  29
  30 #include "config.h"
  31 #include "mp_msg.h"
  32
  33 #include "video_out.h"
  34 #include "csputils.h"
  35
  36 #ifdef CONFIG_GL_WIN32
  37 #include <windows.h>
  38 #include "w32_common.h"
  39 #endif
  40 #ifdef CONFIG_GL_X11
  41 #include <X11/Xlib.h>
  42 #include <GL/glx.h>
  43 #include "x11_common.h"
  44 // This old-vo wrapper macro would conflict with the struct member
  45 #undef update_xinerama_info
  46 #endif
  47
  48 #if defined(CONFIG_GL_COCOA) && !defined(CONFIG_GL_X11)
  49 #include <OpenGL/gl.h>
  50 #else
  51 #include <GL/gl.h>
  52 #endif
  53
  54 #ifdef CONFIG_GL_WIN32
  55 #include <GL/glext.h>
  56 #endif
  57
  58 // workaround for some gl.h headers
  59 #ifndef GLAPIENTRY
  60 #ifdef APIENTRY
  61 #define GLAPIENTRY APIENTRY
  62 #elif defined(CONFIG_GL_WIN32)
  63 #define GLAPIENTRY __stdcall
  64 #else
  65 #define GLAPIENTRY
  66 #endif
  67 #endif
  68
  69 /**
  70  * \defgroup glextdefines OpenGL extension defines
  71  *
  72  * conditionally define all extension defines used.
  73  * vendor specific extensions should be marked as such
  74  * (e.g. _NV), _ARB is not used to ease readability.
  75  * \{
  76  */
  77 #ifndef GL_TEXTURE_3D
  78 #define GL_TEXTURE_3D 0x806F
  79 #endif
  80 #ifndef GL_TEXTURE_WRAP_R
  81 #define GL_TEXTURE_WRAP_R 0x8072
  82 #endif
  83 #ifndef GL_CLAMP_TO_EDGE
  84 #define GL_CLAMP_TO_EDGE 0x812F
  85 #endif
  86 #ifndef GL_GENERATE_MIPMAP
  87 #define GL_GENERATE_MIPMAP 0x8191
  88 #endif
  89 #ifndef GL_TEXT_FRAGMENT_SHADER_ATI
  90 #define GL_TEXT_FRAGMENT_SHADER_ATI 0x8200
  91 #endif
  92 #ifndef GL_FRAGMENT_SHADER_ATI
  93 #define GL_FRAGMENT_SHADER_ATI 0x8920
  94 #endif
  95 #ifndef GL_NUM_FRAGMENT_REGISTERS_ATI
  96 #define GL_NUM_FRAGMENT_REGISTERS_ATI 0x896E
  97 #endif
  98 #ifndef GL_REG_0_ATI
  99 #define GL_REG_0_ATI 0x8921
 100 #endif
 101 #ifndef GL_REG_1_ATI
 102 #define GL_REG_1_ATI 0x8922
 103 #endif
 104 #ifndef GL_REG_2_ATI
 105 #define GL_REG_2_ATI 0x8923
 106 #endif
 107 #ifndef GL_CON_0_ATI
 108 #define GL_CON_0_ATI 0x8941
 109 #endif
 110 #ifndef GL_CON_1_ATI
 111 #define GL_CON_1_ATI 0x8942
 112 #endif
 113 #ifndef GL_CON_2_ATI
 114 #define GL_CON_2_ATI 0x8943
 115 #endif
 116 #ifndef GL_CON_3_ATI
 117 #define GL_CON_3_ATI 0x8944
 118 #endif
 119 #ifndef GL_ADD_ATI
 120 #define GL_ADD_ATI 0x8963
 121 #endif
 122 #ifndef GL_MUL_ATI
 123 #define GL_MUL_ATI 0x8964
 124 #endif
 125 #ifndef GL_MAD_ATI
 126 #define GL_MAD_ATI 0x8968
 127 #endif
 128 #ifndef GL_SWIZZLE_STR_ATI
 129 #define GL_SWIZZLE_STR_ATI 0x8976
 130 #endif
 131 #ifndef GL_4X_BIT_ATI
 132 #define GL_4X_BIT_ATI 2
 133 #endif
 134 #ifndef GL_8X_BIT_ATI
 135 #define GL_8X_BIT_ATI 4
 136 #endif
 137 #ifndef GL_BIAS_BIT_ATI
 138 #define GL_BIAS_BIT_ATI 8
 139 #endif
 140 #ifndef GL_MAX_TEXTURE_UNITS
 141 #define GL_MAX_TEXTURE_UNITS 0x84E2
 142 #endif
 143 #ifndef GL_TEXTURE0
 144 #define GL_TEXTURE0 0x84C0
 145 #endif
 146 #ifndef GL_TEXTURE1
 147 #define GL_TEXTURE1 0x84C1
 148 #endif
 149 #ifndef GL_TEXTURE2
 150 #define GL_TEXTURE2 0x84C2
 151 #endif
 152 #ifndef GL_TEXTURE3
 153 #define GL_TEXTURE3 0x84C3
 154 #endif
 155 #ifndef GL_TEXTURE_RECTANGLE
 156 #define GL_TEXTURE_RECTANGLE 0x84F5
 157 #endif
 158 #ifndef GL_PIXEL_UNPACK_BUFFER
 159 #define GL_PIXEL_UNPACK_BUFFER 0x88EC
 160 #endif
 161 #ifndef GL_STREAM_DRAW
 162 #define GL_STREAM_DRAW 0x88E0
 163 #endif
 164 #ifndef GL_DYNAMIC_DRAW
 165 #define GL_DYNAMIC_DRAW 0x88E8
 166 #endif
 167 #ifndef GL_WRITE_ONLY
 168 #define GL_WRITE_ONLY 0x88B9
 169 #endif
 170 #ifndef GL_BGR
 171 #define GL_BGR 0x80E0
 172 #endif
 173 #ifndef GL_BGRA
 174 #define GL_BGRA 0x80E1
 175 #endif
 176 #ifndef GL_UNSIGNED_BYTE_3_3_2
 177 #define GL_UNSIGNED_BYTE_3_3_2 0x8032
 178 #endif
 179 #ifndef GL_UNSIGNED_BYTE_2_3_3_REV
 180 #define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362
 181 #endif
 182 #ifndef GL_UNSIGNED_SHORT_4_4_4_4
 183 #define GL_UNSIGNED_SHORT_4_4_4_4 0x8033
 184 #endif
 185 #ifndef GL_UNSIGNED_SHORT_4_4_4_4_REV
 186 #define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365
 187 #endif
 188 #ifndef GL_UNSIGNED_SHORT_5_6_5
 189 #define GL_UNSIGNED_SHORT_5_6_5 0x8363
 190 #endif
 191 #ifndef GL_UNSIGNED_INT_8_8_8_8
 192 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
 193 #endif
 194 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
 195 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
 196 #endif
 197 #ifndef GL_UNSIGNED_SHORT_5_6_5_REV
 198 #define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364
 199 #endif
 200 #ifndef GL_UNSIGNED_INT_10_10_10_2
 201 #define GL_UNSIGNED_INT_10_10_10_2 0x8036
 202 #endif
 203 #ifndef GL_UNSIGNED_INT_2_10_10_10_REV
 204 #define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368
 205 #endif
 206 #ifndef GL_UNSIGNED_SHORT_5_5_5_1
 207 #define GL_UNSIGNED_SHORT_5_5_5_1 0x8034
 208 #endif
 209 #ifndef GL_UNSIGNED_SHORT_1_5_5_5_REV
 210 #define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366
 211 #endif
 212 #ifndef GL_UNSIGNED_SHORT_8_8
 213 #define GL_UNSIGNED_SHORT_8_8 0x85BA
 214 #endif
 215 #ifndef GL_UNSIGNED_SHORT_8_8_REV
 216 #define GL_UNSIGNED_SHORT_8_8_REV 0x85BB
 217 #endif
 218 #ifndef GL_YCBCR_MESA
 219 #define GL_YCBCR_MESA 0x8757
 220 #endif
 221 #ifndef GL_RGB32F
 222 #define GL_RGB32F 0x8815
 223 #endif
 224 #ifndef GL_FLOAT_RGB32_NV
 225 #define GL_FLOAT_RGB32_NV 0x8889
 226 #endif
 227 #ifndef GL_LUMINANCE16
 228 #define GL_LUMINANCE16 0x8042
 229 #endif
 230 #ifndef GL_R16
 231 #define GL_R16 0x822A
 232 #endif
 233 #ifndef GL_UNPACK_CLIENT_STORAGE_APPLE
 234 #define GL_UNPACK_CLIENT_STORAGE_APPLE 0x85B2
 235 #endif
 236 #ifndef GL_FRAGMENT_PROGRAM
 237 #define GL_FRAGMENT_PROGRAM 0x8804
 238 #endif
 239 #ifndef GL_PROGRAM_FORMAT_ASCII
 240 #define GL_PROGRAM_FORMAT_ASCII 0x8875
 241 #endif
 242 #ifndef GL_PROGRAM_ERROR_POSITION
 243 #define GL_PROGRAM_ERROR_POSITION 0x864B
 244 #endif
 245 #ifndef GL_MAX_TEXTURE_IMAGE_UNITS
 246 #define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872
 247 #endif
 248 #ifndef GL_PROGRAM_ERROR_STRING
 249 #define GL_PROGRAM_ERROR_STRING 0x8874
 250 #endif
 251 /** \} */ // end of glextdefines group
 252
 253 struct GL;
 254 typedef struct GL GL;
 255
 256 void glAdjustAlignment(GL *gl, int stride);
 257
 258 const char *glValName(GLint value);
 259
 260 int glFindFormat(uint32_t format, int have_texture_rg, int *bpp,
 261                  GLint *gl_texfmt, GLenum *gl_format, GLenum *gl_type);
 262 int glFmt2bpp(GLenum format, GLenum type);
 263 void glCreateClearTex(GL *gl, GLenum target, GLenum fmt, GLenum format,
 264                       GLenum type, GLint filter, int w, int h,
 265                       unsigned char val);
 266 int glCreatePPMTex(GL *gl, GLenum target, GLenum fmt, GLint filter,
 267                    FILE *f, int *width, int *height, int *maxval);
 268 void glUploadTex(GL *gl, GLenum target, GLenum format, GLenum type,
 269                  const void *dataptr, int stride,
 270                  int x, int y, int w, int h, int slice);
 271 void glDownloadTex(GL *gl, GLenum target, GLenum format, GLenum type,
 272                    void *dataptr, int stride);
 273 void glDrawTex(GL *gl, GLfloat x, GLfloat y, GLfloat w, GLfloat h,
 274                GLfloat tx, GLfloat ty, GLfloat tw, GLfloat th,
 275                int sx, int sy, int rect_tex, int is_yv12, int flip);
 276 int loadGPUProgram(GL *gl, GLenum target, char *prog);
 277 void glCheckError(GL *gl, const char *info);
 278
 279 /** \addtogroup glconversion
 280  * \{ */
 281 //! do not use YUV conversion, this should always stay 0
 282 #define YUV_CONVERSION_NONE 0
 283 //! use nVidia specific register combiners for YUV conversion
 284 //! implementation has been removed
 285 #define YUV_CONVERSION_COMBINERS 1
 286 //! use a fragment program for YUV conversion
 287 #define YUV_CONVERSION_FRAGMENT 2
 288 //! use a fragment program for YUV conversion with gamma using POW
 289 #define YUV_CONVERSION_FRAGMENT_POW 3
 290 //! use a fragment program with additional table lookup for YUV conversion
 291 #define YUV_CONVERSION_FRAGMENT_LOOKUP 4
 292 //! use ATI specific register combiners ("fragment program")
 293 #define YUV_CONVERSION_COMBINERS_ATI 5
 294 //! use a fragment program with 3D table lookup for YUV conversion
 295 #define YUV_CONVERSION_FRAGMENT_LOOKUP3D 6
 296 //! use ATI specific "text" register combiners ("fragment program")
 297 #define YUV_CONVERSION_TEXT_FRAGMENT 7
 298 //! use normal bilinear scaling for textures
 299 #define YUV_SCALER_BILIN 0
 300 //! use higher quality bicubic scaling for textures
 301 #define YUV_SCALER_BICUB 1
 302 //! use cubic scaling in X and normal linear scaling in Y direction
 303 #define YUV_SCALER_BICUB_X 2
 304 //! use cubic scaling without additional lookup texture
 305 #define YUV_SCALER_BICUB_NOTEX 3
 306 #define YUV_SCALER_UNSHARP 4
 307 #define YUV_SCALER_UNSHARP2 5
 308 //! mask for conversion type
 309 #define YUV_CONVERSION_MASK 0xF
 310 //! mask for scaler type
 311 #define YUV_SCALER_MASK 0xF
 312 //! shift value for luminance scaler type
 313 #define YUV_LUM_SCALER_SHIFT 8
 314 //! shift value for chrominance scaler type
 315 #define YUV_CHROM_SCALER_SHIFT 12
 316 //! extract conversion out of type
 317 #define YUV_CONVERSION(t) ((t) & YUV_CONVERSION_MASK)
 318 //! extract luminance scaler out of type
 319 #define YUV_LUM_SCALER(t) (((t) >> YUV_LUM_SCALER_SHIFT) & YUV_SCALER_MASK)
 320 //! extract chrominance scaler out of type
 321 #define YUV_CHROM_SCALER(t) (((t) >> YUV_CHROM_SCALER_SHIFT) & YUV_SCALER_MASK)
 322 #define SET_YUV_CONVERSION(c)   ((c) & YUV_CONVERSION_MASK)
 323 #define SET_YUV_LUM_SCALER(s)   (((s) & YUV_SCALER_MASK) << YUV_LUM_SCALER_SHIFT)
 324 #define SET_YUV_CHROM_SCALER(s) (((s) & YUV_SCALER_MASK) << YUV_CHROM_SCALER_SHIFT)
 325 //! returns whether the yuv conversion supports large brightness range etc.
 326 static inline int glYUVLargeRange(int conv)
 327 {
 328     switch (conv) {
 329     case YUV_CONVERSION_NONE:
 330     case YUV_CONVERSION_COMBINERS_ATI:
 331     case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
 332     case YUV_CONVERSION_TEXT_FRAGMENT:
 333         return 0;
 334     }
 335     return 1;
 336 }
 337 /** \} */
 338
 339 typedef struct {
 340     GLenum target;
 341     int type;
 342     struct mp_csp_params csp_params;
 343     int texw;
 344     int texh;
 345     int chrom_texw;
 346     int chrom_texh;
 347     float filter_strength;
 348     float noise_strength;
 349 } gl_conversion_params_t;
 350
 351 int glAutodetectYUVConversion(GL *gl);
 352 void glSetupYUVConversion(GL *gl, gl_conversion_params_t *params);
 353 void glEnableYUVConversion(GL *gl, GLenum target, int type);
 354 void glDisableYUVConversion(GL *gl, GLenum target, int type);
 355
 356 #define GL_3D_RED_CYAN        1
 357 #define GL_3D_GREEN_MAGENTA   2
 358 #define GL_3D_QUADBUFFER      3
 359
 360 void glEnable3DLeft(GL *gl, int type);
 361 void glEnable3DRight(GL *gl, int type);
 362 void glDisable3D(GL *gl, int type);
 363
 364 /** \addtogroup glcontext
 365  * \{ */
 366 //! could not set new window, will continue drawing into the old one.
 367 #define SET_WINDOW_FAILED -1
 368 //! new window is set, could even transfer the OpenGL context.
 369 #define SET_WINDOW_OK 0
 370 //! new window is set, but the OpenGL context needs to be reinitialized.
 371 #define SET_WINDOW_REINIT 1
 372 /** \} */
 373
 374 enum MPGLType {
 375     GLTYPE_AUTO,
 376     GLTYPE_COCOA,
 377     GLTYPE_W32,
 378     GLTYPE_X11,
 379     GLTYPE_SDL,
 380 };
 381
 382 enum {
 383     MPGLFLAG_DEBUG = 1,
 384 };
 385
 386 #define MPGL_VER(major, minor) (((major) << 16) | (minor))
 387 #define MPGL_VER_GET_MAJOR(ver) ((ver) >> 16)
 388 #define MPGL_VER_GET_MINOR(ver) ((ver) & ((1 << 16) - 1))
 389
 390 typedef struct MPGLContext {
 391     GL *gl;
 392     enum MPGLType type;
 393     struct vo *vo;
 394     // Bit size of each component in the created framebuffer. 0 if unknown.
 395     int depth_r, depth_g, depth_b;
 396     union {
 397         int w32;
 398 #ifdef CONFIG_GL_X11
 399         XVisualInfo *x11;
 400 #endif
 401     } vinfo;
 402     union {
 403 #ifdef CONFIG_GL_WIN32
 404         HGLRC w32;
 405 #endif
 406 #ifdef CONFIG_GL_X11
 407         GLXContext x11;
 408 #endif
 409     } context;
 410     int (*create_window)(struct MPGLContext *ctx, uint32_t d_width,
 411                          uint32_t d_height, uint32_t flags);
 412     int (*setGlWindow)(struct MPGLContext *);
 413     void (*releaseGlContext)(struct MPGLContext *);
 414     void (*swapGlBuffers)(struct MPGLContext *);
 415     int (*check_events)(struct vo *vo);
 416     void (*fullscreen)(struct vo *vo);
 417     // only available if GL3 context creation is supported
 418     // gl_flags: bitfield of MPGLFLAG_* constants
 419     // gl_version: requested OpenGL version number (use MPGL_VER())
 420     // return value is one of the SET_WINDOW_* constants
 421     int (*create_window_gl3)(struct MPGLContext *ctx, int gl_flags,
 422                              int gl_version, uint32_t d_width,
 423                              uint32_t d_height, uint32_t flags);
 424     // optional
 425     void (*ontop)(struct vo *vo);
 426     void (*border)(struct vo *vo);
 427     void (*update_xinerama_info)(struct vo *vo);
 428 } MPGLContext;
 429
 430 int mpgl_find_backend(const char *name);
 431
 432 MPGLContext *init_mpglcontext(enum MPGLType type, struct vo *vo);
 433 void uninit_mpglcontext(MPGLContext *ctx);
 434
 435 // calls create_window_gl3 or create_window+setGlWindow
 436 int create_mpglcontext(struct MPGLContext *ctx, int gl_flags, int gl_version,
 437                        uint32_t d_width, uint32_t d_height, uint32_t flags);
 438
 439 //function pointers loaded from the OpenGL library
 440 struct GL {
 441     void (GLAPIENTRY *Begin)(GLenum);
 442     void (GLAPIENTRY *End)(void);
 443     void (GLAPIENTRY *Viewport)(GLint, GLint, GLsizei, GLsizei);
 444     void (GLAPIENTRY *MatrixMode)(GLenum);
 445     void (GLAPIENTRY *LoadIdentity)(void);
 446     void (GLAPIENTRY *Translated)(double, double, double);
 447     void (GLAPIENTRY *Scaled)(double, double, double);
 448     void (GLAPIENTRY *Ortho)(double, double, double, double, double,double);
 449     void (GLAPIENTRY *PushMatrix)(void);
 450     void (GLAPIENTRY *PopMatrix)(void);
 451     void (GLAPIENTRY *Clear)(GLbitfield);
 452     GLuint (GLAPIENTRY *GenLists)(GLsizei);
 453     void (GLAPIENTRY *DeleteLists)(GLuint, GLsizei);
 454     void (GLAPIENTRY *NewList)(GLuint, GLenum);
 455     void (GLAPIENTRY *EndList)(void);
 456     void (GLAPIENTRY *CallList)(GLuint);
 457     void (GLAPIENTRY *CallLists)(GLsizei, GLenum, const GLvoid *);
 458     void (GLAPIENTRY *GenTextures)(GLsizei, GLuint *);
 459     void (GLAPIENTRY *DeleteTextures)(GLsizei, const GLuint *);
 460     void (GLAPIENTRY *TexEnvi)(GLenum, GLenum, GLint);
 461     void (GLAPIENTRY *Color4ub)(GLubyte, GLubyte, GLubyte, GLubyte);
 462     void (GLAPIENTRY *Color4f)(GLfloat, GLfloat, GLfloat, GLfloat);
 463     void (GLAPIENTRY *ClearColor)(GLclampf, GLclampf, GLclampf, GLclampf);
 464     void (GLAPIENTRY *Enable)(GLenum);
 465     void (GLAPIENTRY *Disable)(GLenum);
 466     const GLubyte *(GLAPIENTRY * GetString)(GLenum);
 467     void (GLAPIENTRY *DrawBuffer)(GLenum);
 468     void (GLAPIENTRY *DepthMask)(GLboolean);
 469     void (GLAPIENTRY *BlendFunc)(GLenum, GLenum);
 470     void (GLAPIENTRY *Flush)(void);
 471     void (GLAPIENTRY *Finish)(void);
 472     void (GLAPIENTRY *PixelStorei)(GLenum, GLint);
 473     void (GLAPIENTRY *TexImage1D)(GLenum, GLint, GLint, GLsizei, GLint,
 474                                   GLenum, GLenum, const GLvoid *);
 475     void (GLAPIENTRY *TexImage2D)(GLenum, GLint, GLint, GLsizei, GLsizei,
 476                                   GLint, GLenum, GLenum, const GLvoid *);
 477     void (GLAPIENTRY *TexSubImage2D)(GLenum, GLint, GLint, GLint,
 478                                      GLsizei, GLsizei, GLenum, GLenum,
 479                                      const GLvoid *);
 480     void (GLAPIENTRY *GetTexImage)(GLenum, GLint, GLenum, GLenum, GLvoid *);
 481     void (GLAPIENTRY *TexParameteri)(GLenum, GLenum, GLint);
 482     void (GLAPIENTRY *TexParameterf)(GLenum, GLenum, GLfloat);
 483     void (GLAPIENTRY *TexParameterfv)(GLenum, GLenum, const GLfloat *);
 484     void (GLAPIENTRY *TexCoord2f)(GLfloat, GLfloat);
 485     void (GLAPIENTRY *TexCoord2fv)(const GLfloat *);
 486     void (GLAPIENTRY *Vertex2f)(GLfloat, GLfloat);
 487     void (GLAPIENTRY *GetIntegerv)(GLenum, GLint *);
 488     void (GLAPIENTRY *GetBooleanv)(GLenum, GLboolean *);
 489     void (GLAPIENTRY *ColorMask)(GLboolean, GLboolean, GLboolean, GLboolean);
 490     void (GLAPIENTRY *ReadPixels)(GLint, GLint, GLsizei, GLsizei, GLenum,
 491                                   GLenum, GLvoid *);
 492     void (GLAPIENTRY *ReadBuffer)(GLenum);
 493     void (GLAPIENTRY *VertexPointer)(GLint, GLenum, GLsizei, const GLvoid *);
 494     void (GLAPIENTRY *ColorPointer)(GLint, GLenum, GLsizei, const GLvoid *);
 495     void (GLAPIENTRY *TexCoordPointer)(GLint, GLenum, GLsizei, const GLvoid *);
 496     void (GLAPIENTRY *DrawArrays)(GLenum, GLint, GLsizei);
 497     void (GLAPIENTRY *EnableClientState)(GLenum);
 498     void (GLAPIENTRY *DisableClientState)(GLenum);
 499     GLenum (GLAPIENTRY *GetError)(void);
 500
 501
 502     // OpenGL extension functions
 503     void (GLAPIENTRY *GenBuffers)(GLsizei, GLuint *);
 504     void (GLAPIENTRY *DeleteBuffers)(GLsizei, const GLuint *);
 505     void (GLAPIENTRY *BindBuffer)(GLenum, GLuint);
 506     GLvoid * (GLAPIENTRY * MapBuffer)(GLenum, GLenum);
 507     GLboolean (GLAPIENTRY *UnmapBuffer)(GLenum);
 508     void (GLAPIENTRY *BufferData)(GLenum, intptr_t, const GLvoid *, GLenum);
 509     void (GLAPIENTRY *ActiveTexture)(GLenum);
 510     void (GLAPIENTRY *BindTexture)(GLenum, GLuint);
 511     void (GLAPIENTRY *MultiTexCoord2f)(GLenum, GLfloat, GLfloat);
 512     void (GLAPIENTRY *GenPrograms)(GLsizei, GLuint *);
 513     void (GLAPIENTRY *DeletePrograms)(GLsizei, const GLuint *);
 514     void (GLAPIENTRY *BindProgram)(GLenum, GLuint);
 515     void (GLAPIENTRY *ProgramString)(GLenum, GLenum, GLsizei, const GLvoid *);
 516     void (GLAPIENTRY *GetProgramivARB)(GLenum, GLenum, GLint *);
 517     void (GLAPIENTRY *ProgramEnvParameter4f)(GLenum, GLuint, GLfloat, GLfloat,
 518                                              GLfloat, GLfloat);
 519     int (GLAPIENTRY *SwapInterval)(int);
 520     void (GLAPIENTRY *TexImage3D)(GLenum, GLint, GLenum, GLsizei, GLsizei,
 521                                   GLsizei, GLint, GLenum, GLenum,
 522                                   const GLvoid *);
 523
 524     // ancient ATI extensions
 525     void (GLAPIENTRY *BeginFragmentShader)(void);
 526     void (GLAPIENTRY *EndFragmentShader)(void);
 527     void (GLAPIENTRY *SampleMap)(GLuint, GLuint, GLenum);
 528     void (GLAPIENTRY *ColorFragmentOp2)(GLenum, GLuint, GLuint, GLuint, GLuint,
 529                                         GLuint, GLuint, GLuint, GLuint, GLuint);
 530     void (GLAPIENTRY *ColorFragmentOp3)(GLenum, GLuint, GLuint, GLuint, GLuint,
 531                                         GLuint, GLuint, GLuint, GLuint, GLuint,
 532                                         GLuint, GLuint, GLuint);
 533     void (GLAPIENTRY *SetFragmentShaderConstant)(GLuint, const GLfloat *);
 534
 535
 536     // GL 3, possibly in GL 2.x as well in form of extensions
 537     void (GLAPIENTRY *GenVertexArrays)(GLsizei, GLuint *);
 538     void (GLAPIENTRY *BindVertexArray)(GLuint);
 539     GLint (GLAPIENTRY *GetAttribLocation)(GLuint, const GLchar *);
 540     void (GLAPIENTRY *EnableVertexAttribArray)(GLuint);
 541     void (GLAPIENTRY *DisableVertexAttribArray)(GLuint);
 542     void (GLAPIENTRY *VertexAttribPointer)(GLuint, GLint, GLenum, GLboolean,
 543                                            GLsizei, const GLvoid *);
 544     void (GLAPIENTRY *DeleteVertexArrays)(GLsizei, const GLuint *);
 545     void (GLAPIENTRY *UseProgram)(GLuint);
 546     GLint (GLAPIENTRY *GetUniformLocation)(GLuint, const GLchar *);
 547     void (GLAPIENTRY *CompileShader)(GLuint);
 548     GLuint (GLAPIENTRY *CreateProgram)(void);
 549     GLuint (GLAPIENTRY *CreateShader)(GLenum);
 550     void (GLAPIENTRY *ShaderSource)(GLuint, GLsizei, const GLchar **,
 551                                     const GLint *);
 552     void (GLAPIENTRY *LinkProgram)(GLuint);
 553     void (GLAPIENTRY *AttachShader)(GLuint, GLuint);
 554     void (GLAPIENTRY *DeleteShader)(GLuint);
 555     void (GLAPIENTRY *DeleteProgram)(GLuint);
 556     void (GLAPIENTRY *GetShaderInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
 557     void (GLAPIENTRY *GetShaderiv)(GLuint, GLenum, GLint *);
 558     void (GLAPIENTRY *GetProgramInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
 559     void (GLAPIENTRY *GetProgramiv)(GLenum, GLenum, GLint *);
 560     const GLubyte* (GLAPIENTRY *GetStringi)(GLenum, GLuint);
 561     void (GLAPIENTRY *BindAttribLocation)(GLuint, GLuint, const GLchar *);
 562     void (GLAPIENTRY *BindFramebuffer)(GLenum, GLuint);
 563     void (GLAPIENTRY *GenFramebuffers)(GLsizei, GLuint *);
 564     void (GLAPIENTRY *DeleteFramebuffers)(GLsizei, const GLuint *);
 565     GLenum (GLAPIENTRY *CheckFramebufferStatus)(GLenum);
 566     void (GLAPIENTRY *FramebufferTexture2D)(GLenum, GLenum, GLenum, GLuint,
 567                                             GLint);
 568
 569     void (GLAPIENTRY *Uniform1f)(GLint, GLfloat);
 570     void (GLAPIENTRY *Uniform3f)(GLint, GLfloat, GLfloat, GLfloat);
 571     void (GLAPIENTRY *Uniform1i)(GLint, GLint);
 572     void (GLAPIENTRY *UniformMatrix3fv)(GLint, GLsizei, GLboolean,
 573                                         const GLfloat *);
 574     void (GLAPIENTRY *UniformMatrix4x3fv)(GLint, GLsizei, GLboolean,
 575                                           const GLfloat *);
 576 };
 577
 578
 579 #if defined(CONFIG_GL_WIN32) && !defined(WGL_CONTEXT_MAJOR_VERSION_ARB)
 580 /* these are supposed to be defined in wingdi.h but mingw's is too old */
 581 /* only the bits actually used by mplayer are defined */
 582 /* reference: http://www.opengl.org/registry/specs/ARB/wgl_create_context.txt */
 583
 584 #define WGL_CONTEXT_MAJOR_VERSION_ARB          0x2091
 585 #define WGL_CONTEXT_MINOR_VERSION_ARB          0x2092
 586 #define WGL_CONTEXT_FLAGS_ARB                  0x2094
 587 #define WGL_CONTEXT_PROFILE_MASK_ARB           0x9126
 588 #define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
 589 #define WGL_CONTEXT_CORE_PROFILE_BIT_ARB   0x00000001
 590 #endif
 591
 592 #endif /* MPLAYER_GL_COMMON_H */