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1 /**
2  * \file dd.h
3  * Device driver interfaces.
4  */
5 
6 /*
7  * Mesa 3-D graphics library
8  *
9  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a
12  * copy of this software and associated documentation files (the "Software"),
13  * to deal in the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15  * and/or sell copies of the Software, and to permit persons to whom the
16  * Software is furnished to do so, subject to the following conditions:
17  *
18  * The above copyright notice and this permission notice shall be included
19  * in all copies or substantial portions of the Software.
20  *
21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
24  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
27  * OTHER DEALINGS IN THE SOFTWARE.
28  */
29 
30 
31 #ifndef DD_INCLUDED
32 #define DD_INCLUDED
33 
34 #include "glheader.h"
35 #include "formats.h"
36 #include "menums.h"
37 #include "compiler/shader_enums.h"
38 
39 /* Windows winnt.h defines MemoryBarrier as a macro on some platforms,
40  * including as a function-like macro in some cases. That either causes
41  * the table entry below to have a weird name, or fail to compile.
42  */
43 #ifdef MemoryBarrier
44 #undef MemoryBarrier
45 #endif
46 
47 struct gl_bitmap_atlas;
48 struct gl_buffer_object;
49 struct gl_context;
50 struct gl_display_list;
51 struct gl_framebuffer;
52 struct gl_image_unit;
53 struct gl_pixelstore_attrib;
54 struct gl_program;
55 struct gl_renderbuffer;
56 struct gl_renderbuffer_attachment;
57 struct gl_shader;
58 struct gl_shader_program;
59 struct gl_texture_image;
60 struct gl_texture_object;
61 struct gl_memory_info;
62 struct gl_transform_feedback_object;
63 struct gl_vertex_array_object;
64 struct ati_fragment_shader;
65 struct util_queue_monitoring;
66 struct _mesa_prim;
67 struct _mesa_index_buffer;
68 struct pipe_draw_info;
69 struct pipe_draw_start_count_bias;
70 struct pipe_vertex_state;
71 struct pipe_draw_vertex_state_info;
72 struct pipe_vertex_buffer;
73 struct pipe_vertex_element;
74 
75 /* GL_ARB_vertex_buffer_object */
76 /* Modifies GL_MAP_UNSYNCHRONIZED_BIT to allow driver to fail (return
77  * NULL) if buffer is unavailable for immediate mapping.
78  *
79  * Does GL_MAP_INVALIDATE_RANGE_BIT do this?  It seems so, but it
80  * would require more book-keeping in the driver than seems necessary
81  * at this point.
82  *
83  * Does GL_MAP_INVALDIATE_BUFFER_BIT do this?  Not really -- we don't
84  * want to provoke the driver to throw away the old storage, we will
85  * respect the contents of already referenced data.
86  */
87 #define MESA_MAP_NOWAIT_BIT       0x4000
88 
89 /* Mapping a buffer is allowed from any thread. */
90 #define MESA_MAP_THREAD_SAFE_BIT  0x8000
91 
92 /* This buffer will only be mapped/unmapped once */
93 #define MESA_MAP_ONCE            0x10000
94 
95 
96 /**
97  * Device driver function table.
98  * Core Mesa uses these function pointers to call into device drivers.
99  * Most of these functions directly correspond to OpenGL state commands.
100  * Core Mesa will call these functions after error checking has been done
101  * so that the drivers don't have to worry about error testing.
102  *
103  * Vertex transformation/clipping/lighting is patched into the T&L module.
104  * Rasterization functions are patched into the swrast module.
105  *
106  * Note: when new functions are added here, the drivers/common/driverfuncs.c
107  * file should be updated too!!!
108  */
109 struct dd_function_table {
110    /**
111     * Return a string as needed by glGetString().
112     * Only the GL_RENDERER query must be implemented.  Otherwise, NULL can be
113     * returned.
114     */
115    const GLubyte * (*GetString)( struct gl_context *ctx, GLenum name );
116 
117    /**
118     * Notify the driver after Mesa has made some internal state changes.
119     *
120     * This is in addition to any state change callbacks Mesa may already have
121     * made.
122     */
123    void (*UpdateState)(struct gl_context *ctx);
124 
125    /**
126     * This is called whenever glFinish() is called.
127     */
128    void (*Finish)( struct gl_context *ctx );
129 
130    /**
131     * This is called whenever glFlush() is called.
132     */
133    void (*Flush)(struct gl_context *ctx, unsigned gallium_flush_flags);
134 
135    /**
136     * Clear the color/depth/stencil/accum buffer(s).
137     * \param buffers  a bitmask of BUFFER_BIT_* flags indicating which
138     *                 renderbuffers need to be cleared.
139     */
140    void (*Clear)( struct gl_context *ctx, GLbitfield buffers );
141 
142    /**
143     * Execute glRasterPos, updating the ctx->Current.Raster fields
144     */
145    void (*RasterPos)( struct gl_context *ctx, const GLfloat v[4] );
146 
147    /**
148     * \name Image-related functions
149     */
150    /*@{*/
151 
152    /**
153     * Called by glDrawPixels().
154     * \p unpack describes how to unpack the source image data.
155     */
156    void (*DrawPixels)( struct gl_context *ctx,
157 		       GLint x, GLint y, GLsizei width, GLsizei height,
158 		       GLenum format, GLenum type,
159 		       const struct gl_pixelstore_attrib *unpack,
160 		       const GLvoid *pixels );
161 
162    /**
163     * Called by glReadPixels().
164     */
165    void (*ReadPixels)( struct gl_context *ctx,
166 		       GLint x, GLint y, GLsizei width, GLsizei height,
167 		       GLenum format, GLenum type,
168 		       const struct gl_pixelstore_attrib *unpack,
169 		       GLvoid *dest );
170 
171    /**
172     * Called by glCopyPixels().
173     */
174    void (*CopyPixels)( struct gl_context *ctx, GLint srcx, GLint srcy,
175                        GLsizei width, GLsizei height,
176                        GLint dstx, GLint dsty, GLenum type );
177 
178    /**
179     * Called by glBitmap().
180     */
181    void (*Bitmap)( struct gl_context *ctx,
182 		   GLint x, GLint y, GLsizei width, GLsizei height,
183 		   const struct gl_pixelstore_attrib *unpack,
184 		   const GLubyte *bitmap );
185 
186    /**
187     * Called by display list code for optimized glCallLists/glBitmap rendering
188     * The driver must support texture rectangles of width 1024 or more.
189     */
190    void (*DrawAtlasBitmaps)(struct gl_context *ctx,
191                             const struct gl_bitmap_atlas *atlas,
192                             GLuint count, const GLubyte *ids);
193    /*@}*/
194 
195 
196    /**
197     * \name Texture image functions
198     */
199    /*@{*/
200 
201    /**
202     * Choose actual hardware texture format given the texture target, the
203     * user-provided source image format and type and the desired internal
204     * format.  In some cases, srcFormat and srcType can be GL_NONE.
205     * Note:  target may be GL_TEXTURE_CUBE_MAP, but never
206     * GL_TEXTURE_CUBE_MAP_[POSITIVE/NEGATIVE]_[XYZ].
207     * Called by glTexImage(), etc.
208     */
209    mesa_format (*ChooseTextureFormat)(struct gl_context *ctx,
210                                       GLenum target, GLint internalFormat,
211                                       GLenum srcFormat, GLenum srcType );
212 
213    /**
214     * Queries different driver parameters for a particular target and format.
215     * Since ARB_internalformat_query2 introduced several new query parameters
216     * over ARB_internalformat_query, having one driver hook for each parameter
217     * is no longer feasible. So this is the generic entry-point for calls
218     * to glGetInternalFormativ and glGetInternalFormati64v, after Mesa has
219     * checked errors and default values.
220     *
221     * \param ctx            GL context
222     * \param target         GL target enum
223     * \param internalFormat GL format enum
224     * \param pname          GL enum that specifies the info to query.
225     * \param params         Buffer to hold the result of the query.
226     */
227    void (*QueryInternalFormat)(struct gl_context *ctx,
228                                GLenum target,
229                                GLenum internalFormat,
230                                GLenum pname,
231                                GLint *params);
232 
233    /**
234     * Called by glTexImage[123]D() and glCopyTexImage[12]D()
235     * Allocate texture memory and copy the user's image to the buffer.
236     * The gl_texture_image fields, etc. will be fully initialized.
237     * The parameters are the same as glTexImage3D(), plus:
238     * \param dims  1, 2, or 3 indicating glTexImage1/2/3D()
239     * \param packing describes how to unpack the source data.
240     * \param texImage is the destination texture image.
241     */
242    void (*TexImage)(struct gl_context *ctx, GLuint dims,
243                     struct gl_texture_image *texImage,
244                     GLenum format, GLenum type, const GLvoid *pixels,
245                     const struct gl_pixelstore_attrib *packing);
246 
247    /**
248     * Called by glTexSubImage[123]D().
249     * Replace a subset of the target texture with new texel data.
250     */
251    void (*TexSubImage)(struct gl_context *ctx, GLuint dims,
252                        struct gl_texture_image *texImage,
253                        GLint xoffset, GLint yoffset, GLint zoffset,
254                        GLsizei width, GLsizei height, GLint depth,
255                        GLenum format, GLenum type,
256                        const GLvoid *pixels,
257                        const struct gl_pixelstore_attrib *packing);
258 
259 
260    /**
261     * Called by glGetTexImage(), glGetTextureSubImage().
262     */
263    void (*GetTexSubImage)(struct gl_context *ctx,
264                           GLint xoffset, GLint yoffset, GLint zoffset,
265                           GLsizei width, GLsizei height, GLsizei depth,
266                           GLenum format, GLenum type, GLvoid *pixels,
267                           struct gl_texture_image *texImage);
268 
269    /**
270     * Called by glClearTex[Sub]Image
271     *
272     * Clears a rectangular region of the image to a given value. The
273     * clearValue argument is either NULL or points to a single texel to use as
274     * the clear value in the same internal format as the texture image. If it
275     * is NULL then the texture should be cleared to zeroes.
276     */
277    void (*ClearTexSubImage)(struct gl_context *ctx,
278                             struct gl_texture_image *texImage,
279                             GLint xoffset, GLint yoffset, GLint zoffset,
280                             GLsizei width, GLsizei height, GLsizei depth,
281                             const GLvoid *clearValue);
282 
283    /**
284     * Called by glCopyTex[Sub]Image[123]D().
285     *
286     * This function should copy a rectangular region in the rb to a single
287     * destination slice, specified by @slice.  In the case of 1D array
288     * textures (where one GL call can potentially affect multiple destination
289     * slices), core mesa takes care of calling this function multiple times,
290     * once for each scanline to be copied.
291     */
292    void (*CopyTexSubImage)(struct gl_context *ctx, GLuint dims,
293                            struct gl_texture_image *texImage,
294                            GLint xoffset, GLint yoffset, GLint slice,
295                            struct gl_renderbuffer *rb,
296                            GLint x, GLint y,
297                            GLsizei width, GLsizei height);
298    /**
299     * Called by glCopyImageSubData().
300     *
301     * This function should copy one 2-D slice from src_teximage or
302     * src_renderbuffer to dst_teximage or dst_renderbuffer.  Either the
303     * teximage or renderbuffer pointer will be non-null to indicate which
304     * is the real src/dst.
305     *
306     * If one of the textures is 3-D or is a 1-D or 2-D array
307     * texture, this function will be called multiple times: once for each
308     * slice.  If one of the textures is a cube map, this function will be
309     * called once for each face to be copied.
310     */
311    void (*CopyImageSubData)(struct gl_context *ctx,
312                             struct gl_texture_image *src_teximage,
313                             struct gl_renderbuffer *src_renderbuffer,
314                             int src_x, int src_y, int src_z,
315                             struct gl_texture_image *dst_teximage,
316                             struct gl_renderbuffer *dst_renderbuffer,
317                             int dst_x, int dst_y, int dst_z,
318                             int src_width, int src_height);
319 
320    /**
321     * Called by glGenerateMipmap() or when GL_GENERATE_MIPMAP_SGIS is enabled.
322     * Note that if the texture is a cube map, the <target> parameter will
323     * indicate which cube face to generate (GL_POSITIVE/NEGATIVE_X/Y/Z).
324     * texObj->BaseLevel is the level from which to generate the remaining
325     * mipmap levels.
326     */
327    void (*GenerateMipmap)(struct gl_context *ctx, GLenum target,
328                           struct gl_texture_object *texObj);
329 
330    /**
331     * Called by glTexImage, glCompressedTexImage, glCopyTexImage
332     * and glTexStorage to check if the dimensions of the texture image
333     * are too large.
334     * \param target  any GL_PROXY_TEXTURE_x target
335     * \return GL_TRUE if the image is OK, GL_FALSE if too large
336     */
337    GLboolean (*TestProxyTexImage)(struct gl_context *ctx, GLenum target,
338                                   GLuint numLevels, GLint level,
339                                   mesa_format format, GLuint numSamples,
340                                   GLint width, GLint height,
341                                   GLint depth);
342    /*@}*/
343 
344 
345    /**
346     * \name Compressed texture functions
347     */
348    /*@{*/
349 
350    /**
351     * Called by glCompressedTexImage[123]D().
352     */
353    void (*CompressedTexImage)(struct gl_context *ctx, GLuint dims,
354                               struct gl_texture_image *texImage,
355                               GLsizei imageSize, const GLvoid *data);
356 
357    /**
358     * Called by glCompressedTexSubImage[123]D().
359     */
360    void (*CompressedTexSubImage)(struct gl_context *ctx, GLuint dims,
361                                  struct gl_texture_image *texImage,
362                                  GLint xoffset, GLint yoffset, GLint zoffset,
363                                  GLsizei width, GLsizei height, GLsizei depth,
364                                  GLenum format,
365                                  GLsizei imageSize, const GLvoid *data);
366    /*@}*/
367 
368    /**
369     * \name Texture object / image functions
370     */
371    /*@{*/
372 
373    /**
374     * Called by glBindTexture() and glBindTextures().
375     */
376    void (*BindTexture)( struct gl_context *ctx, GLuint texUnit,
377                         GLenum target, struct gl_texture_object *tObj );
378 
379    /**
380     * Called to allocate a new texture object.  Drivers will usually
381     * allocate/return a subclass of gl_texture_object.
382     */
383    struct gl_texture_object * (*NewTextureObject)(struct gl_context *ctx,
384                                                   GLuint name, GLenum target);
385    /**
386     * Called to delete/free a texture object.  Drivers should free the
387     * object and any image data it contains.
388     */
389    void (*DeleteTexture)(struct gl_context *ctx,
390                          struct gl_texture_object *texObj);
391 
392    /**
393     * Called to notify that texture is removed from ctx->Shared->TexObjects
394     */
395    void (*TextureRemovedFromShared)(struct gl_context *ctx,
396                                    struct gl_texture_object *texObj);
397 
398    /** Called to allocate a new texture image object. */
399    struct gl_texture_image * (*NewTextureImage)(struct gl_context *ctx);
400 
401    /** Called to free a texture image object returned by NewTextureImage() */
402    void (*DeleteTextureImage)(struct gl_context *ctx,
403                               struct gl_texture_image *);
404 
405    /** Called to allocate memory for a single texture image */
406    GLboolean (*AllocTextureImageBuffer)(struct gl_context *ctx,
407                                         struct gl_texture_image *texImage);
408 
409    /** Free the memory for a single texture image */
410    void (*FreeTextureImageBuffer)(struct gl_context *ctx,
411                                   struct gl_texture_image *texImage);
412 
413    /** Map a slice of a texture image into user space.
414     * Note: for GL_TEXTURE_1D_ARRAY, height must be 1, y must be 0 and slice
415     * indicates the 1D array index.
416     * \param texImage  the texture image
417     * \param slice  the 3D image slice or array texture slice
418     * \param x, y, w, h  region of interest
419     * \param mode  bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT and
420     *              GL_MAP_INVALIDATE_RANGE_BIT (if writing)
421     * \param mapOut  returns start of mapping of region of interest
422     * \param rowStrideOut returns row stride (in bytes).  In the case of a
423     * compressed texture, this is the byte stride between one row of blocks
424     * and another.
425     */
426    void (*MapTextureImage)(struct gl_context *ctx,
427 			   struct gl_texture_image *texImage,
428 			   GLuint slice,
429 			   GLuint x, GLuint y, GLuint w, GLuint h,
430 			   GLbitfield mode,
431 			   GLubyte **mapOut, GLint *rowStrideOut);
432 
433    void (*UnmapTextureImage)(struct gl_context *ctx,
434 			     struct gl_texture_image *texImage,
435 			     GLuint slice);
436 
437    /** For GL_ARB_texture_storage.  Allocate memory for whole mipmap stack.
438     * All the gl_texture_images in the texture object will have their
439     * dimensions, format, etc. initialized already.
440     */
441    GLboolean (*AllocTextureStorage)(struct gl_context *ctx,
442                                     struct gl_texture_object *texObj,
443                                     GLsizei levels, GLsizei width,
444                                     GLsizei height, GLsizei depth);
445 
446    /** Called as part of glTextureView to add views to origTexObj */
447    GLboolean (*TextureView)(struct gl_context *ctx,
448                             struct gl_texture_object *texObj,
449                             struct gl_texture_object *origTexObj);
450 
451    /**
452     * Map a renderbuffer into user space.
453     * \param mode  bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT and
454     *              GL_MAP_INVALIDATE_RANGE_BIT (if writing)
455     */
456    void (*MapRenderbuffer)(struct gl_context *ctx,
457 			   struct gl_renderbuffer *rb,
458 			   GLuint x, GLuint y, GLuint w, GLuint h,
459 			   GLbitfield mode,
460 			   GLubyte **mapOut, GLint *rowStrideOut,
461 			   bool flip_y);
462 
463    void (*UnmapRenderbuffer)(struct gl_context *ctx,
464 			     struct gl_renderbuffer *rb);
465 
466    /**
467     * Optional driver entrypoint that binds a non-texture renderbuffer's
468     * contents to a texture image.
469     */
470    GLboolean (*BindRenderbufferTexImage)(struct gl_context *ctx,
471                                          struct gl_renderbuffer *rb,
472                                          struct gl_texture_image *texImage);
473    /*@}*/
474 
475 
476    /**
477     * \name Vertex/fragment program functions
478     */
479    /*@{*/
480    /** Allocate a new program */
481    struct gl_program * (*NewProgram)(struct gl_context *ctx,
482                                      gl_shader_stage stage,
483                                      GLuint id, bool is_arb_asm);
484    /** Delete a program */
485    void (*DeleteProgram)(struct gl_context *ctx, struct gl_program *prog);
486    /**
487     * Allocate a program to associate with the new ATI fragment shader (optional)
488     */
489    struct gl_program * (*NewATIfs)(struct gl_context *ctx,
490                                    struct ati_fragment_shader *curProg);
491    /**
492     * Notify driver that a program string (and GPU code) has been specified
493     * or modified.  Return GL_TRUE or GL_FALSE to indicate if the program is
494     * supported by the driver.
495     */
496    GLboolean (*ProgramStringNotify)(struct gl_context *ctx, GLenum target,
497                                     struct gl_program *prog);
498 
499    /**
500     * Notify driver that the sampler uniforms for the current program have
501     * changed.  On some drivers, this may require shader recompiles.
502     */
503    void (*SamplerUniformChange)(struct gl_context *ctx, GLenum target,
504                                 struct gl_program *prog);
505 
506    /** Query if program can be loaded onto hardware */
507    GLboolean (*IsProgramNative)(struct gl_context *ctx, GLenum target,
508 				struct gl_program *prog);
509 
510    /*@}*/
511 
512    /**
513     * \name GLSL shader/program functions.
514     */
515    /*@{*/
516    /**
517     * Called when a shader program is linked.
518     *
519     * This gives drivers an opportunity to clone the IR and make their
520     * own transformations on it for the purposes of code generation.
521     */
522    GLboolean (*LinkShader)(struct gl_context *ctx,
523                            struct gl_shader_program *shader);
524    /*@}*/
525 
526 
527    /**
528     * \name Draw functions.
529     */
530    /*@{*/
531    /**
532     * For indirect array drawing:
533     *
534     *    typedef struct {
535     *       GLuint count;
536     *       GLuint primCount;
537     *       GLuint first;
538     *       GLuint baseInstance; // in GL 4.2 and later, must be zero otherwise
539     *    } DrawArraysIndirectCommand;
540     *
541     * For indirect indexed drawing:
542     *
543     *    typedef struct {
544     *       GLuint count;
545     *       GLuint primCount;
546     *       GLuint firstIndex;
547     *       GLint  baseVertex;
548     *       GLuint baseInstance; // in GL 4.2 and later, must be zero otherwise
549     *    } DrawElementsIndirectCommand;
550     */
551 
552    /**
553     * Draw a number of primitives.
554     * \param prims  array [nr_prims] describing what to draw (prim type,
555     *               vertex count, first index, instance count, etc).
556     * \param ib  index buffer for indexed drawing, NULL for array drawing
557     * \param index_bounds_valid  are min_index and max_index valid?
558     * \param min_index  lowest vertex index used
559     * \param max_index  highest vertex index used
560     * \param num_instances  instance count from ARB_draw_instanced
561     * \param base_instance  base instance from ARB_base_instance
562     */
563    void (*Draw)(struct gl_context *ctx,
564                 const struct _mesa_prim *prims, unsigned nr_prims,
565                 const struct _mesa_index_buffer *ib,
566                 bool index_bounds_valid,
567                 bool primitive_restart,
568                 unsigned restart_index,
569                 unsigned min_index, unsigned max_index,
570                 unsigned num_instances, unsigned base_instance);
571 
572    /**
573     * Optimal Gallium version of Draw() that doesn't require translation
574     * of draw info in the state tracker.
575     *
576     * The interface is identical to pipe_context::draw_vbo
577     * with indirect == NULL.
578     *
579     * "info" is not const and the following fields can be changed by
580     * the callee, so callers should be aware:
581     * - info->index_bounds_valid (if false)
582     * - info->min_index (if index_bounds_valid is false)
583     * - info->max_index (if index_bounds_valid is false)
584     * - info->drawid (if increment_draw_id is true)
585     * - info->index.gl_bo (if index_size && !has_user_indices)
586     */
587    void (*DrawGallium)(struct gl_context *ctx,
588                        struct pipe_draw_info *info,
589                        unsigned drawid_offset,
590                        const struct pipe_draw_start_count_bias *draws,
591                        unsigned num_draws);
592 
593    /**
594     * Same as DrawGallium, but mode can also change between draws.
595     *
596     * "info" is not const and the following fields can be changed by
597     * the callee in addition to the fields listed by DrawGallium:
598     * - info->mode
599     *
600     * This function exists to decrease complexity of DrawGallium.
601     */
602    void (*DrawGalliumMultiMode)(struct gl_context *ctx,
603                                 struct pipe_draw_info *info,
604                                 const struct pipe_draw_start_count_bias *draws,
605                                 const unsigned char *mode,
606                                 unsigned num_draws);
607 
608    /**
609     * Draw a primitive, getting the vertex count, instance count, start
610     * vertex, etc. from a buffer object.
611     * \param mode  GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc.
612     * \param indirect_data  buffer to get "DrawArrays/ElementsIndirectCommand"
613     *                       data
614     * \param indirect_offset  offset of first primitive in indrect_data buffer
615     * \param draw_count  number of primitives to draw
616     * \param stride  stride, in bytes, between
617     *                "DrawArrays/ElementsIndirectCommand" objects
618     * \param indirect_draw_count_buffer  if non-NULL specifies a buffer to get
619     *                                    the real draw_count value.  Used for
620     *                                    GL_ARB_indirect_parameters.
621     * \param indirect_draw_count_offset  offset to the draw_count value in
622     *                                    indirect_draw_count_buffer
623     * \param ib  index buffer for indexed drawing, NULL otherwise.
624     */
625    void (*DrawIndirect)(struct gl_context *ctx, GLuint mode,
626                         struct gl_buffer_object *indirect_data,
627                         GLsizeiptr indirect_offset, unsigned draw_count,
628                         unsigned stride,
629                         struct gl_buffer_object *indirect_draw_count_buffer,
630                         GLsizeiptr indirect_draw_count_offset,
631                         const struct _mesa_index_buffer *ib,
632                         bool primitive_restart,
633                         unsigned restart_index);
634 
635    /**
636     * Driver implementation of glDrawTransformFeedback.
637     *
638     * \param mode    Primitive type
639     * \param num_instances  instance count from ARB_draw_instanced
640     * \param stream  If called via DrawTransformFeedbackStream, specifies
641     *                the vertex stream buffer from which to get the vertex
642     *                count.
643     * \param tfb_vertcount  if non-null, indicates which transform feedback
644     *                       object has the vertex count.
645     */
646    void (*DrawTransformFeedback)(struct gl_context *ctx, GLenum mode,
647                                  unsigned num_instances, unsigned stream,
648                                  struct gl_transform_feedback_object *tfb_vertcount);
649 
650    void (*DrawGalliumVertexState)(struct gl_context *ctx,
651                                   struct pipe_vertex_state *state,
652                                   struct pipe_draw_vertex_state_info info,
653                                   const struct pipe_draw_start_count_bias *draws,
654                                   const uint8_t *mode,
655                                   unsigned num_draws,
656                                   bool per_vertex_edgeflags);
657    /*@}*/
658 
659    struct pipe_vertex_state *
660       (*CreateGalliumVertexState)(struct gl_context *ctx,
661                                   const struct gl_vertex_array_object *vao,
662                                   struct gl_buffer_object *indexbuf,
663                                   uint32_t enabled_attribs);
664 
665    /**
666     * \name State-changing functions.
667     *
668     * \note drawing functions are above.
669     *
670     * These functions are called by their corresponding OpenGL API functions.
671     * They are \e also called by the gl_PopAttrib() function!!!
672     * May add more functions like these to the device driver in the future.
673     */
674    /*@{*/
675    /** Specify the alpha test function */
676    void (*AlphaFunc)(struct gl_context *ctx, GLenum func, GLfloat ref);
677    /** Set the blend color */
678    void (*BlendColor)(struct gl_context *ctx, const GLfloat color[4]);
679    /** Set the blend equation */
680    void (*BlendEquationSeparate)(struct gl_context *ctx,
681                                  GLenum modeRGB, GLenum modeA);
682    /** Specify pixel arithmetic */
683    void (*BlendFuncSeparate)(struct gl_context *ctx,
684                              GLenum sfactorRGB, GLenum dfactorRGB,
685                              GLenum sfactorA, GLenum dfactorA);
686    /** Specify a plane against which all geometry is clipped */
687    void (*ClipPlane)(struct gl_context *ctx, GLenum plane, const GLfloat *eq);
688    /** Enable and disable writing of frame buffer color components */
689    void (*ColorMask)(struct gl_context *ctx, GLboolean rmask, GLboolean gmask,
690                      GLboolean bmask, GLboolean amask );
691    /** Cause a material color to track the current color */
692    void (*ColorMaterial)(struct gl_context *ctx, GLenum face, GLenum mode);
693    /** Specify whether front- or back-facing facets can be culled */
694    void (*CullFace)(struct gl_context *ctx, GLenum mode);
695    /** Define front- and back-facing polygons */
696    void (*FrontFace)(struct gl_context *ctx, GLenum mode);
697    /** Specify the value used for depth buffer comparisons */
698    void (*DepthFunc)(struct gl_context *ctx, GLenum func);
699    /** Enable or disable writing into the depth buffer */
700    void (*DepthMask)(struct gl_context *ctx, GLboolean flag);
701    /** Specify mapping of depth values from NDC to window coordinates */
702    void (*DepthRange)(struct gl_context *ctx);
703    /** Specify the current buffer for writing */
704    void (*DrawBuffer)(struct gl_context *ctx);
705    /** Used to allocated any buffers with on-demand creation */
706    void (*DrawBufferAllocate)(struct gl_context *ctx);
707    /** Enable or disable server-side gl capabilities */
708    void (*Enable)(struct gl_context *ctx, GLenum cap, GLboolean state);
709    /** Specify fog parameters */
710    void (*Fogfv)(struct gl_context *ctx, GLenum pname, const GLfloat *params);
711    /** Set light source parameters.
712     * Note: for GL_POSITION and GL_SPOT_DIRECTION, params will have already
713     * been transformed to eye-space.
714     */
715    void (*Lightfv)(struct gl_context *ctx, GLenum light,
716 		   GLenum pname, const GLfloat *params );
717    /** Set the lighting model parameters */
718    void (*LightModelfv)(struct gl_context *ctx, GLenum pname,
719                         const GLfloat *params);
720    /** Specify the line stipple pattern */
721    void (*LineStipple)(struct gl_context *ctx, GLint factor, GLushort pattern );
722    /** Specify the width of rasterized lines */
723    void (*LineWidth)(struct gl_context *ctx, GLfloat width);
724    /** Specify a logical pixel operation for color index rendering */
725    void (*LogicOpcode)(struct gl_context *ctx, enum gl_logicop_mode opcode);
726    void (*PointParameterfv)(struct gl_context *ctx, GLenum pname,
727                             const GLfloat *params);
728    /** Specify the diameter of rasterized points */
729    void (*PointSize)(struct gl_context *ctx, GLfloat size);
730    /** Select a polygon rasterization mode */
731    void (*PolygonMode)(struct gl_context *ctx, GLenum face, GLenum mode);
732    /** Set the scale and units used to calculate depth values */
733    void (*PolygonOffset)(struct gl_context *ctx, GLfloat factor, GLfloat units, GLfloat clamp);
734    /** Set the polygon stippling pattern */
735    void (*PolygonStipple)(struct gl_context *ctx, const GLubyte *mask );
736    /* Specifies the current buffer for reading */
737    void (*ReadBuffer)( struct gl_context *ctx, GLenum buffer );
738    /** Set rasterization mode */
739    void (*RenderMode)(struct gl_context *ctx, GLenum mode );
740    /** Define the scissor box */
741    void (*Scissor)(struct gl_context *ctx);
742    /** Select flat or smooth shading */
743    void (*ShadeModel)(struct gl_context *ctx, GLenum mode);
744    /** OpenGL 2.0 two-sided StencilFunc */
745    void (*StencilFuncSeparate)(struct gl_context *ctx, GLenum face, GLenum func,
746                                GLint ref, GLuint mask);
747    /** OpenGL 2.0 two-sided StencilMask */
748    void (*StencilMaskSeparate)(struct gl_context *ctx, GLenum face, GLuint mask);
749    /** OpenGL 2.0 two-sided StencilOp */
750    void (*StencilOpSeparate)(struct gl_context *ctx, GLenum face, GLenum fail,
751                              GLenum zfail, GLenum zpass);
752    /** Control the generation of texture coordinates */
753    void (*TexGen)(struct gl_context *ctx, GLenum coord, GLenum pname,
754 		  const GLfloat *params);
755    /** Set texture environment parameters */
756    void (*TexEnv)(struct gl_context *ctx, GLenum target, GLenum pname,
757                   const GLfloat *param);
758    /** Set texture parameter (callee gets param value from the texObj) */
759    void (*TexParameter)(struct gl_context *ctx,
760                         struct gl_texture_object *texObj, GLenum pname);
761    /** Set the viewport */
762    void (*Viewport)(struct gl_context *ctx);
763    /*@}*/
764 
765 
766    /**
767     * \name Vertex/pixel buffer object functions
768     */
769    /*@{*/
770    struct gl_buffer_object * (*NewBufferObject)(struct gl_context *ctx,
771                                                 GLuint buffer);
772 
773    void (*DeleteBuffer)( struct gl_context *ctx, struct gl_buffer_object *obj );
774 
775    GLboolean (*BufferData)(struct gl_context *ctx, GLenum target,
776                            GLsizeiptrARB size, const GLvoid *data, GLenum usage,
777                            GLenum storageFlags, struct gl_buffer_object *obj);
778 
779    void (*BufferSubData)( struct gl_context *ctx, GLintptrARB offset,
780 			  GLsizeiptrARB size, const GLvoid *data,
781 			  struct gl_buffer_object *obj );
782 
783    void (*GetBufferSubData)( struct gl_context *ctx,
784 			     GLintptrARB offset, GLsizeiptrARB size,
785 			     GLvoid *data, struct gl_buffer_object *obj );
786 
787    void (*ClearBufferSubData)( struct gl_context *ctx,
788                                GLintptr offset, GLsizeiptr size,
789                                const GLvoid *clearValue,
790                                GLsizeiptr clearValueSize,
791                                struct gl_buffer_object *obj );
792 
793    void (*CopyBufferSubData)( struct gl_context *ctx,
794                               struct gl_buffer_object *src,
795                               struct gl_buffer_object *dst,
796                               GLintptr readOffset, GLintptr writeOffset,
797                               GLsizeiptr size );
798 
799    void (*InvalidateBufferSubData)( struct gl_context *ctx,
800                                     struct gl_buffer_object *obj,
801                                     GLintptr offset,
802                                     GLsizeiptr length );
803 
804    /* Returns pointer to the start of the mapped range.
805     * May return NULL if MESA_MAP_NOWAIT_BIT is set in access:
806     */
807    void * (*MapBufferRange)( struct gl_context *ctx, GLintptr offset,
808                              GLsizeiptr length, GLbitfield access,
809                              struct gl_buffer_object *obj,
810                              gl_map_buffer_index index);
811 
812    void (*FlushMappedBufferRange)(struct gl_context *ctx,
813                                   GLintptr offset, GLsizeiptr length,
814                                   struct gl_buffer_object *obj,
815                                   gl_map_buffer_index index);
816 
817    GLboolean (*UnmapBuffer)( struct gl_context *ctx,
818 			     struct gl_buffer_object *obj,
819                              gl_map_buffer_index index);
820    /*@}*/
821 
822    /**
823     * \name Functions for GL_APPLE_object_purgeable
824     */
825    /*@{*/
826    /* variations on ObjectPurgeable */
827    GLenum (*BufferObjectPurgeable)(struct gl_context *ctx,
828                                    struct gl_buffer_object *obj, GLenum option);
829    GLenum (*RenderObjectPurgeable)(struct gl_context *ctx,
830                                    struct gl_renderbuffer *obj, GLenum option);
831    GLenum (*TextureObjectPurgeable)(struct gl_context *ctx,
832                                     struct gl_texture_object *obj,
833                                     GLenum option);
834 
835    /* variations on ObjectUnpurgeable */
836    GLenum (*BufferObjectUnpurgeable)(struct gl_context *ctx,
837                                      struct gl_buffer_object *obj,
838                                      GLenum option);
839    GLenum (*RenderObjectUnpurgeable)(struct gl_context *ctx,
840                                      struct gl_renderbuffer *obj,
841                                      GLenum option);
842    GLenum (*TextureObjectUnpurgeable)(struct gl_context *ctx,
843                                       struct gl_texture_object *obj,
844                                       GLenum option);
845    /*@}*/
846 
847    /**
848     * \name Functions for GL_EXT_framebuffer_{object,blit,discard}.
849     */
850    /*@{*/
851    struct gl_framebuffer * (*NewFramebuffer)(struct gl_context *ctx,
852                                              GLuint name);
853    struct gl_renderbuffer * (*NewRenderbuffer)(struct gl_context *ctx,
854                                                GLuint name);
855    void (*BindFramebuffer)(struct gl_context *ctx, GLenum target,
856                            struct gl_framebuffer *drawFb,
857                            struct gl_framebuffer *readFb);
858    void (*FramebufferRenderbuffer)(struct gl_context *ctx,
859                                    struct gl_framebuffer *fb,
860                                    GLenum attachment,
861                                    struct gl_renderbuffer *rb);
862    void (*RenderTexture)(struct gl_context *ctx,
863                          struct gl_framebuffer *fb,
864                          struct gl_renderbuffer_attachment *att);
865    void (*FinishRenderTexture)(struct gl_context *ctx,
866                                struct gl_renderbuffer *rb);
867    void (*ValidateFramebuffer)(struct gl_context *ctx,
868                                struct gl_framebuffer *fb);
869    /*@}*/
870    void (*BlitFramebuffer)(struct gl_context *ctx,
871                            struct gl_framebuffer *readFb,
872                            struct gl_framebuffer *drawFb,
873                            GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
874                            GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
875                            GLbitfield mask, GLenum filter);
876    void (*DiscardFramebuffer)(struct gl_context *ctx, struct gl_framebuffer *fb,
877                               struct gl_renderbuffer_attachment *att);
878 
879    /**
880     * \name Functions for GL_ARB_sample_locations
881     */
882    void (*GetProgrammableSampleCaps)(struct gl_context *ctx,
883                                      const struct gl_framebuffer *fb,
884                                      GLuint *bits, GLuint *width, GLuint *height);
885    void (*EvaluateDepthValues)(struct gl_context *ctx);
886 
887    /**
888     * \name Query objects
889     */
890    /*@{*/
891    struct gl_query_object * (*NewQueryObject)(struct gl_context *ctx, GLuint id);
892    void (*DeleteQuery)(struct gl_context *ctx, struct gl_query_object *q);
893    void (*BeginQuery)(struct gl_context *ctx, struct gl_query_object *q);
894    void (*QueryCounter)(struct gl_context *ctx, struct gl_query_object *q);
895    void (*EndQuery)(struct gl_context *ctx, struct gl_query_object *q);
896    void (*CheckQuery)(struct gl_context *ctx, struct gl_query_object *q);
897    void (*WaitQuery)(struct gl_context *ctx, struct gl_query_object *q);
898    /*
899     * \pname the value requested to be written (GL_QUERY_RESULT, etc)
900     * \ptype the type of the value requested to be written:
901     *    GL_UNSIGNED_INT, GL_UNSIGNED_INT64_ARB,
902     *    GL_INT, GL_INT64_ARB
903     */
904    void (*StoreQueryResult)(struct gl_context *ctx, struct gl_query_object *q,
905                             struct gl_buffer_object *buf, intptr_t offset,
906                             GLenum pname, GLenum ptype);
907    /*@}*/
908 
909    /**
910     * \name Performance monitors
911     */
912    /*@{*/
913    void (*InitPerfMonitorGroups)(struct gl_context *ctx);
914    struct gl_perf_monitor_object * (*NewPerfMonitor)(struct gl_context *ctx);
915    void (*DeletePerfMonitor)(struct gl_context *ctx,
916                              struct gl_perf_monitor_object *m);
917    GLboolean (*BeginPerfMonitor)(struct gl_context *ctx,
918                                  struct gl_perf_monitor_object *m);
919 
920    /** Stop an active performance monitor, discarding results. */
921    void (*ResetPerfMonitor)(struct gl_context *ctx,
922                             struct gl_perf_monitor_object *m);
923    void (*EndPerfMonitor)(struct gl_context *ctx,
924                           struct gl_perf_monitor_object *m);
925    GLboolean (*IsPerfMonitorResultAvailable)(struct gl_context *ctx,
926                                              struct gl_perf_monitor_object *m);
927    void (*GetPerfMonitorResult)(struct gl_context *ctx,
928                                 struct gl_perf_monitor_object *m,
929                                 GLsizei dataSize,
930                                 GLuint *data,
931                                 GLint *bytesWritten);
932    /*@}*/
933 
934    /**
935     * \name Performance Query objects
936     */
937    /*@{*/
938    unsigned (*InitPerfQueryInfo)(struct gl_context *ctx);
939    void (*GetPerfQueryInfo)(struct gl_context *ctx,
940                             unsigned queryIndex,
941                             const char **name,
942                             GLuint *dataSize,
943                             GLuint *numCounters,
944                             GLuint *numActive);
945    void (*GetPerfCounterInfo)(struct gl_context *ctx,
946                               unsigned queryIndex,
947                               unsigned counterIndex,
948                               const char **name,
949                               const char **desc,
950                               GLuint *offset,
951                               GLuint *data_size,
952                               GLuint *type_enum,
953                               GLuint *data_type_enum,
954                               GLuint64 *raw_max);
955    struct gl_perf_query_object * (*NewPerfQueryObject)(struct gl_context *ctx,
956                                                        unsigned queryIndex);
957    void (*DeletePerfQuery)(struct gl_context *ctx,
958                            struct gl_perf_query_object *obj);
959    bool (*BeginPerfQuery)(struct gl_context *ctx,
960                           struct gl_perf_query_object *obj);
961    void (*EndPerfQuery)(struct gl_context *ctx,
962                         struct gl_perf_query_object *obj);
963    void (*WaitPerfQuery)(struct gl_context *ctx,
964                          struct gl_perf_query_object *obj);
965    bool (*IsPerfQueryReady)(struct gl_context *ctx,
966                             struct gl_perf_query_object *obj);
967    bool (*GetPerfQueryData)(struct gl_context *ctx,
968                             struct gl_perf_query_object *obj,
969                             GLsizei dataSize,
970                             GLuint *data,
971                             GLuint *bytesWritten);
972    /*@}*/
973 
974 
975    /**
976     * \name GREMEDY debug/marker functions
977     */
978    /*@{*/
979    void (*EmitStringMarker)(struct gl_context *ctx, const GLchar *string, GLsizei len);
980    /*@}*/
981 
982    /**
983     * \name Support for multiple T&L engines
984     */
985    /*@{*/
986 
987    /**
988     * Set by the driver-supplied T&L engine.
989     *
990     * Set to PRIM_OUTSIDE_BEGIN_END when outside glBegin()/glEnd().
991     */
992    GLuint CurrentExecPrimitive;
993 
994    /**
995     * Current glBegin state of an in-progress compilation.  May be
996     * GL_POINTS, GL_TRIANGLE_STRIP, etc. or PRIM_OUTSIDE_BEGIN_END
997     * or PRIM_UNKNOWN.
998     */
999    GLuint CurrentSavePrimitive;
1000 
1001 
1002 #define FLUSH_STORED_VERTICES 0x1
1003 #define FLUSH_UPDATE_CURRENT  0x2
1004    /**
1005     * Set by the driver-supplied T&L engine whenever vertices are buffered
1006     * between glBegin()/glEnd() objects or __struct gl_contextRec::Current
1007     * is not updated.  A bitmask of the FLUSH_x values above.
1008     *
1009     * The dd_function_table::FlushVertices call below may be used to resolve
1010     * these conditions.
1011     */
1012    GLbitfield NeedFlush;
1013 
1014    /** Need to call vbo_save_SaveFlushVertices() upon state change? */
1015    GLboolean SaveNeedFlush;
1016 
1017    /**
1018     * Notify driver that the special derived value _NeedEyeCoords has
1019     * changed.
1020     */
1021    void (*LightingSpaceChange)( struct gl_context *ctx );
1022 
1023    /**@}*/
1024 
1025    /**
1026     * \name GL_ARB_sync interfaces
1027     */
1028    /*@{*/
1029    struct gl_sync_object * (*NewSyncObject)(struct gl_context *);
1030    void (*FenceSync)(struct gl_context *, struct gl_sync_object *,
1031                      GLenum, GLbitfield);
1032    void (*DeleteSyncObject)(struct gl_context *, struct gl_sync_object *);
1033    void (*CheckSync)(struct gl_context *, struct gl_sync_object *);
1034    void (*ClientWaitSync)(struct gl_context *, struct gl_sync_object *,
1035 			  GLbitfield, GLuint64);
1036    void (*ServerWaitSync)(struct gl_context *, struct gl_sync_object *,
1037 			  GLbitfield, GLuint64);
1038    /*@}*/
1039 
1040    /** GL_NV_conditional_render */
1041    void (*BeginConditionalRender)(struct gl_context *ctx,
1042                                   struct gl_query_object *q,
1043                                   GLenum mode);
1044    void (*EndConditionalRender)(struct gl_context *ctx,
1045                                 struct gl_query_object *q);
1046 
1047    /**
1048     * \name GL_OES_draw_texture interface
1049     */
1050    /*@{*/
1051    void (*DrawTex)(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
1052                    GLfloat width, GLfloat height);
1053    /*@}*/
1054 
1055    /**
1056     * \name GL_OES_EGL_image interface
1057     */
1058    void (*EGLImageTargetTexture2D)(struct gl_context *ctx, GLenum target,
1059 				   struct gl_texture_object *texObj,
1060 				   struct gl_texture_image *texImage,
1061 				   GLeglImageOES image_handle);
1062    void (*EGLImageTargetRenderbufferStorage)(struct gl_context *ctx,
1063 					     struct gl_renderbuffer *rb,
1064 					     void *image_handle);
1065 
1066    /**
1067     * \name GL_EXT_EGL_image_storage interface
1068     */
1069    void (*EGLImageTargetTexStorage)(struct gl_context *ctx, GLenum target,
1070                                     struct gl_texture_object *texObj,
1071                                     struct gl_texture_image *texImage,
1072                                     GLeglImageOES image_handle);
1073    /**
1074     * \name GL_EXT_transform_feedback interface
1075     */
1076    struct gl_transform_feedback_object *
1077         (*NewTransformFeedback)(struct gl_context *ctx, GLuint name);
1078    void (*DeleteTransformFeedback)(struct gl_context *ctx,
1079                                    struct gl_transform_feedback_object *obj);
1080    void (*BeginTransformFeedback)(struct gl_context *ctx, GLenum mode,
1081                                   struct gl_transform_feedback_object *obj);
1082    void (*EndTransformFeedback)(struct gl_context *ctx,
1083                                 struct gl_transform_feedback_object *obj);
1084    void (*PauseTransformFeedback)(struct gl_context *ctx,
1085                                   struct gl_transform_feedback_object *obj);
1086    void (*ResumeTransformFeedback)(struct gl_context *ctx,
1087                                    struct gl_transform_feedback_object *obj);
1088 
1089    /**
1090     * Return the number of vertices written to a stream during the last
1091     * Begin/EndTransformFeedback block.
1092     */
1093    GLsizei (*GetTransformFeedbackVertexCount)(struct gl_context *ctx,
1094                                        struct gl_transform_feedback_object *obj,
1095                                        GLuint stream);
1096 
1097    /**
1098     * \name GL_NV_texture_barrier interface
1099     */
1100    void (*TextureBarrier)(struct gl_context *ctx);
1101 
1102    /**
1103     * \name GL_ARB_sampler_objects
1104     */
1105    struct gl_sampler_object * (*NewSamplerObject)(struct gl_context *ctx,
1106                                                   GLuint name);
1107 
1108    /**
1109     * \name Return a timestamp in nanoseconds as defined by GL_ARB_timer_query.
1110     * This should be equivalent to glGetInteger64v(GL_TIMESTAMP);
1111     */
1112    uint64_t (*GetTimestamp)(struct gl_context *ctx);
1113 
1114    /**
1115     * \name GL_ARB_texture_multisample
1116     */
1117    void (*GetSamplePosition)(struct gl_context *ctx,
1118                              struct gl_framebuffer *fb,
1119                              GLuint index,
1120                              GLfloat *outValue);
1121 
1122    /**
1123     * \name NV_vdpau_interop interface
1124     */
1125    void (*VDPAUMapSurface)(struct gl_context *ctx, GLenum target,
1126                            GLenum access, GLboolean output,
1127                            struct gl_texture_object *texObj,
1128                            struct gl_texture_image *texImage,
1129                            const GLvoid *vdpSurface, GLuint index);
1130    void (*VDPAUUnmapSurface)(struct gl_context *ctx, GLenum target,
1131                              GLenum access, GLboolean output,
1132                              struct gl_texture_object *texObj,
1133                              struct gl_texture_image *texImage,
1134                              const GLvoid *vdpSurface, GLuint index);
1135 
1136    /**
1137     * Query reset status for GL_ARB_robustness
1138     *
1139     * Per \c glGetGraphicsResetStatusARB, this function should return a
1140     * non-zero value once after a reset.  If a reset is non-atomic, the
1141     * non-zero status should be returned for the duration of the reset.
1142     */
1143    GLenum (*GetGraphicsResetStatus)(struct gl_context *ctx);
1144 
1145    /**
1146     * \name GL_ARB_shader_image_load_store interface.
1147     */
1148    /** @{ */
1149    void (*MemoryBarrier)(struct gl_context *ctx, GLbitfield barriers);
1150    /** @} */
1151 
1152    /**
1153     * GL_EXT_shader_framebuffer_fetch_non_coherent rendering barrier.
1154     *
1155     * On return from this function any framebuffer contents written by
1156     * previous draw commands are guaranteed to be visible from subsequent
1157     * fragment shader invocations using the
1158     * EXT_shader_framebuffer_fetch_non_coherent interface.
1159     */
1160    /** @{ */
1161    void (*FramebufferFetchBarrier)(struct gl_context *ctx);
1162    /** @} */
1163 
1164    /**
1165     * \name GL_ARB_compute_shader interface
1166     */
1167    /*@{*/
1168    void (*DispatchCompute)(struct gl_context *ctx, const GLuint *num_groups);
1169    void (*DispatchComputeIndirect)(struct gl_context *ctx, GLintptr indirect);
1170    /*@}*/
1171 
1172    /**
1173     * \name GL_ARB_compute_variable_group_size interface
1174     */
1175    /*@{*/
1176    void (*DispatchComputeGroupSize)(struct gl_context *ctx,
1177                                     const GLuint *num_groups,
1178                                     const GLuint *group_size);
1179    /*@}*/
1180 
1181    /**
1182     * Query information about memory. Device memory is e.g. VRAM. Staging
1183     * memory is e.g. GART. All sizes are in kilobytes.
1184     */
1185    void (*QueryMemoryInfo)(struct gl_context *ctx,
1186                            struct gl_memory_info *info);
1187 
1188    /**
1189     * Indicate that this thread is being used by Mesa as a background drawing
1190     * thread for the given GL context.
1191     *
1192     * If this function is called more than once from any given thread, each
1193     * subsequent call overrides the context that was passed in the previous
1194     * call.  Mesa takes advantage of this to re-use a background thread to
1195     * perform drawing on behalf of multiple contexts.
1196     *
1197     * Mesa may sometimes call this function from a non-background thread
1198     * (i.e. a thread that has already been bound to a context using
1199     * __DriverAPIRec::MakeCurrent()); when this happens, ctx will be equal to
1200     * the context that is bound to this thread.
1201     *
1202     * Mesa will only call this function if GL multithreading is enabled.
1203     */
1204    void (*SetBackgroundContext)(struct gl_context *ctx,
1205                                 struct util_queue_monitoring *queue_info);
1206 
1207    /**
1208     * \name GL_ARB_sparse_buffer interface
1209     */
1210    /*@{*/
1211    void (*BufferPageCommitment)(struct gl_context *ctx,
1212                                 struct gl_buffer_object *bufferObj,
1213                                 GLintptr offset, GLsizeiptr size,
1214                                 GLboolean commit);
1215    /*@}*/
1216 
1217    /**
1218     * \name GL_ARB_bindless_texture interface
1219     */
1220    /*@{*/
1221    GLuint64 (*NewTextureHandle)(struct gl_context *ctx,
1222                                 struct gl_texture_object *texObj,
1223                                 struct gl_sampler_object *sampObj);
1224    void (*DeleteTextureHandle)(struct gl_context *ctx, GLuint64 handle);
1225    void (*MakeTextureHandleResident)(struct gl_context *ctx, GLuint64 handle,
1226                                      bool resident);
1227    GLuint64 (*NewImageHandle)(struct gl_context *ctx,
1228                               struct gl_image_unit *imgObj);
1229    void (*DeleteImageHandle)(struct gl_context *ctx, GLuint64 handle);
1230    void (*MakeImageHandleResident)(struct gl_context *ctx, GLuint64 handle,
1231                                    GLenum access, bool resident);
1232    /*@}*/
1233 
1234 
1235    /**
1236     * \name GL_EXT_external_objects interface
1237     */
1238    /*@{*/
1239   /**
1240     * Called to allocate a new memory object.  Drivers will usually
1241     * allocate/return a subclass of gl_memory_object.
1242     */
1243    struct gl_memory_object * (*NewMemoryObject)(struct gl_context *ctx,
1244                                                 GLuint name);
1245    /**
1246     * Called to delete/free a memory object.  Drivers should free the
1247     * object and any image data it contains.
1248     */
1249    void (*DeleteMemoryObject)(struct gl_context *ctx,
1250                               struct gl_memory_object *memObj);
1251 
1252    /**
1253     * Set the given memory object as the texture's storage.
1254     */
1255    GLboolean (*SetTextureStorageForMemoryObject)(struct gl_context *ctx,
1256                                                  struct gl_texture_object *tex_obj,
1257                                                  struct gl_memory_object *mem_obj,
1258                                                  GLsizei levels, GLsizei width,
1259                                                  GLsizei height, GLsizei depth,
1260                                                  GLuint64 offset);
1261 
1262    /**
1263     * Use a memory object as the backing data for a buffer object
1264     */
1265    GLboolean (*BufferDataMem)(struct gl_context *ctx,
1266                               GLenum target,
1267                               GLsizeiptrARB size,
1268                               struct gl_memory_object *memObj,
1269                               GLuint64 offset,
1270                               GLenum usage,
1271                               struct gl_buffer_object *bufObj);
1272 
1273    /**
1274     * Fill uuid with an unique identifier for this driver
1275     *
1276     * uuid must point to GL_UUID_SIZE_EXT bytes of available memory
1277     */
1278    void (*GetDriverUuid)(struct gl_context *ctx, char *uuid);
1279 
1280    /**
1281     * Fill uuid with an unique identifier for the device associated
1282     * to this driver
1283     *
1284     * uuid must point to GL_UUID_SIZE_EXT bytes of available memory
1285     */
1286    void (*GetDeviceUuid)(struct gl_context *ctx, char *uuid);
1287 
1288    /*@}*/
1289 
1290    /**
1291     * \name GL_EXT_external_objects_fd interface
1292     */
1293    /*@{*/
1294    /**
1295     * Called to import a memory object. The caller relinquishes ownership
1296     * of fd after the call returns.
1297     *
1298     * Accessing fd after ImportMemoryObjectFd returns results in undefined
1299     * behaviour. This is consistent with EXT_external_object_fd.
1300     */
1301    void (*ImportMemoryObjectFd)(struct gl_context *ctx,
1302                                 struct gl_memory_object *memObj,
1303                                 GLuint64 size,
1304                                 int fd);
1305    /*@}*/
1306 
1307    /**
1308     * \name GL_ARB_get_program_binary
1309     */
1310    /*@{*/
1311    /**
1312     * Calls to retrieve/store a binary serialized copy of the current program.
1313     */
1314    void (*GetProgramBinaryDriverSHA1)(struct gl_context *ctx, uint8_t *sha1);
1315 
1316    void (*ProgramBinarySerializeDriverBlob)(struct gl_context *ctx,
1317                                             struct gl_shader_program *shProg,
1318                                             struct gl_program *prog);
1319 
1320    void (*ProgramBinaryDeserializeDriverBlob)(struct gl_context *ctx,
1321                                               struct gl_shader_program *shProg,
1322                                               struct gl_program *prog);
1323    /*@}*/
1324 
1325    /**
1326     * \name GL_EXT_semaphore interface
1327     */
1328    /*@{*/
1329   /**
1330     * Called to allocate a new semaphore object. Drivers will usually
1331     * allocate/return a subclass of gl_semaphore_object.
1332     */
1333    struct gl_semaphore_object * (*NewSemaphoreObject)(struct gl_context *ctx,
1334                                                       GLuint name);
1335    /**
1336     * Called to delete/free a semaphore object. Drivers should free the
1337     * object and any associated resources.
1338     */
1339    void (*DeleteSemaphoreObject)(struct gl_context *ctx,
1340                                  struct gl_semaphore_object *semObj);
1341 
1342    /**
1343     * Introduce an operation to wait for the semaphore object in the GL
1344     * server's command stream
1345     */
1346    void (*ServerWaitSemaphoreObject)(struct gl_context *ctx,
1347                                      struct gl_semaphore_object *semObj,
1348                                      GLuint numBufferBarriers,
1349                                      struct gl_buffer_object **bufObjs,
1350                                      GLuint numTextureBarriers,
1351                                      struct gl_texture_object **texObjs,
1352                                      const GLenum *srcLayouts);
1353 
1354    /**
1355     * Introduce an operation to signal the semaphore object in the GL
1356     * server's command stream
1357     */
1358    void (*ServerSignalSemaphoreObject)(struct gl_context *ctx,
1359                                        struct gl_semaphore_object *semObj,
1360                                        GLuint numBufferBarriers,
1361                                        struct gl_buffer_object **bufObjs,
1362                                        GLuint numTextureBarriers,
1363                                        struct gl_texture_object **texObjs,
1364                                        const GLenum *dstLayouts);
1365    /*@}*/
1366 
1367    /**
1368     * \name GL_EXT_semaphore_fd interface
1369     */
1370    /*@{*/
1371    /**
1372     * Called to import a semaphore object. The caller relinquishes ownership
1373     * of fd after the call returns.
1374     *
1375     * Accessing fd after ImportSemaphoreFd returns results in undefined
1376     * behaviour. This is consistent with EXT_semaphore_fd.
1377     */
1378    void (*ImportSemaphoreFd)(struct gl_context *ctx,
1379                                 struct gl_semaphore_object *semObj,
1380                                 int fd);
1381    /*@}*/
1382 
1383    /**
1384     * \name Disk shader cache functions
1385     */
1386    /*@{*/
1387    /**
1388     * Called to initialize gl_program::driver_cache_blob (and size) with a
1389     * ralloc allocated buffer.
1390     *
1391     * This buffer will be saved and restored as part of the gl_program
1392     * serialization and deserialization.
1393     */
1394    void (*ShaderCacheSerializeDriverBlob)(struct gl_context *ctx,
1395                                           struct gl_program *prog);
1396    /*@}*/
1397 
1398    /**
1399     * \name Set the number of compiler threads for ARB_parallel_shader_compile
1400     */
1401    void (*SetMaxShaderCompilerThreads)(struct gl_context *ctx, unsigned count);
1402    bool (*GetShaderProgramCompletionStatus)(struct gl_context *ctx,
1403                                             struct gl_shader_program *shprog);
1404 
1405    void (*PinDriverToL3Cache)(struct gl_context *ctx, unsigned L3_cache);
1406 
1407    GLboolean (*ValidateEGLImage)(struct gl_context *ctx, GLeglImageOES image_handle);
1408 };
1409 
1410 
1411 /**
1412  * Per-vertex functions.
1413  *
1414  * These are the functions which can appear between glBegin and glEnd.
1415  * Depending on whether we're inside or outside a glBegin/End pair
1416  * and whether we're in immediate mode or building a display list, these
1417  * functions behave differently.  This structure allows us to switch
1418  * between those modes more easily.
1419  *
1420  * Generally, these pointers point to functions in the VBO module.
1421  */
1422 typedef struct {
1423    void (GLAPIENTRYP ArrayElement)( GLint );
1424    void (GLAPIENTRYP Color3f)( GLfloat, GLfloat, GLfloat );
1425    void (GLAPIENTRYP Color3fv)( const GLfloat * );
1426    void (GLAPIENTRYP Color4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1427    void (GLAPIENTRYP Color4fv)( const GLfloat * );
1428    void (GLAPIENTRYP EdgeFlag)( GLboolean );
1429    void (GLAPIENTRYP EvalCoord1f)( GLfloat );
1430    void (GLAPIENTRYP EvalCoord1fv)( const GLfloat * );
1431    void (GLAPIENTRYP EvalCoord2f)( GLfloat, GLfloat );
1432    void (GLAPIENTRYP EvalCoord2fv)( const GLfloat * );
1433    void (GLAPIENTRYP EvalPoint1)( GLint );
1434    void (GLAPIENTRYP EvalPoint2)( GLint, GLint );
1435    void (GLAPIENTRYP FogCoordfEXT)( GLfloat );
1436    void (GLAPIENTRYP FogCoordfvEXT)( const GLfloat * );
1437    void (GLAPIENTRYP Indexf)( GLfloat );
1438    void (GLAPIENTRYP Indexfv)( const GLfloat * );
1439    void (GLAPIENTRYP Materialfv)( GLenum face, GLenum pname, const GLfloat * );
1440    void (GLAPIENTRYP MultiTexCoord1fARB)( GLenum, GLfloat );
1441    void (GLAPIENTRYP MultiTexCoord1fvARB)( GLenum, const GLfloat * );
1442    void (GLAPIENTRYP MultiTexCoord2fARB)( GLenum, GLfloat, GLfloat );
1443    void (GLAPIENTRYP MultiTexCoord2fvARB)( GLenum, const GLfloat * );
1444    void (GLAPIENTRYP MultiTexCoord3fARB)( GLenum, GLfloat, GLfloat, GLfloat );
1445    void (GLAPIENTRYP MultiTexCoord3fvARB)( GLenum, const GLfloat * );
1446    void (GLAPIENTRYP MultiTexCoord4fARB)( GLenum, GLfloat, GLfloat, GLfloat, GLfloat );
1447    void (GLAPIENTRYP MultiTexCoord4fvARB)( GLenum, const GLfloat * );
1448    void (GLAPIENTRYP Normal3f)( GLfloat, GLfloat, GLfloat );
1449    void (GLAPIENTRYP Normal3fv)( const GLfloat * );
1450    void (GLAPIENTRYP SecondaryColor3fEXT)( GLfloat, GLfloat, GLfloat );
1451    void (GLAPIENTRYP SecondaryColor3fvEXT)( const GLfloat * );
1452    void (GLAPIENTRYP TexCoord1f)( GLfloat );
1453    void (GLAPIENTRYP TexCoord1fv)( const GLfloat * );
1454    void (GLAPIENTRYP TexCoord2f)( GLfloat, GLfloat );
1455    void (GLAPIENTRYP TexCoord2fv)( const GLfloat * );
1456    void (GLAPIENTRYP TexCoord3f)( GLfloat, GLfloat, GLfloat );
1457    void (GLAPIENTRYP TexCoord3fv)( const GLfloat * );
1458    void (GLAPIENTRYP TexCoord4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1459    void (GLAPIENTRYP TexCoord4fv)( const GLfloat * );
1460    void (GLAPIENTRYP Vertex2f)( GLfloat, GLfloat );
1461    void (GLAPIENTRYP Vertex2fv)( const GLfloat * );
1462    void (GLAPIENTRYP Vertex3f)( GLfloat, GLfloat, GLfloat );
1463    void (GLAPIENTRYP Vertex3fv)( const GLfloat * );
1464    void (GLAPIENTRYP Vertex4f)( GLfloat, GLfloat, GLfloat, GLfloat );
1465    void (GLAPIENTRYP Vertex4fv)( const GLfloat * );
1466    void (GLAPIENTRYP CallList)( GLuint );
1467    void (GLAPIENTRYP CallLists)( GLsizei, GLenum, const GLvoid * );
1468    void (GLAPIENTRYP Begin)( GLenum );
1469    void (GLAPIENTRYP End)( void );
1470    void (GLAPIENTRYP PrimitiveRestartNV)( void );
1471    /* Originally for GL_NV_vertex_program, now used only dlist.c and friends */
1472    void (GLAPIENTRYP VertexAttrib1fNV)( GLuint index, GLfloat x );
1473    void (GLAPIENTRYP VertexAttrib1fvNV)( GLuint index, const GLfloat *v );
1474    void (GLAPIENTRYP VertexAttrib2fNV)( GLuint index, GLfloat x, GLfloat y );
1475    void (GLAPIENTRYP VertexAttrib2fvNV)( GLuint index, const GLfloat *v );
1476    void (GLAPIENTRYP VertexAttrib3fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1477    void (GLAPIENTRYP VertexAttrib3fvNV)( GLuint index, const GLfloat *v );
1478    void (GLAPIENTRYP VertexAttrib4fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1479    void (GLAPIENTRYP VertexAttrib4fvNV)( GLuint index, const GLfloat *v );
1480    /* GL_ARB_vertex_program */
1481    void (GLAPIENTRYP VertexAttrib1fARB)( GLuint index, GLfloat x );
1482    void (GLAPIENTRYP VertexAttrib1fvARB)( GLuint index, const GLfloat *v );
1483    void (GLAPIENTRYP VertexAttrib2fARB)( GLuint index, GLfloat x, GLfloat y );
1484    void (GLAPIENTRYP VertexAttrib2fvARB)( GLuint index, const GLfloat *v );
1485    void (GLAPIENTRYP VertexAttrib3fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z );
1486    void (GLAPIENTRYP VertexAttrib3fvARB)( GLuint index, const GLfloat *v );
1487    void (GLAPIENTRYP VertexAttrib4fARB)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w );
1488    void (GLAPIENTRYP VertexAttrib4fvARB)( GLuint index, const GLfloat *v );
1489 
1490    /* GL_EXT_gpu_shader4 / GL 3.0 */
1491    void (GLAPIENTRYP VertexAttribI1i)( GLuint index, GLint x);
1492    void (GLAPIENTRYP VertexAttribI2i)( GLuint index, GLint x, GLint y);
1493    void (GLAPIENTRYP VertexAttribI3i)( GLuint index, GLint x, GLint y, GLint z);
1494    void (GLAPIENTRYP VertexAttribI4i)( GLuint index, GLint x, GLint y, GLint z, GLint w);
1495    void (GLAPIENTRYP VertexAttribI2iv)( GLuint index, const GLint *v);
1496    void (GLAPIENTRYP VertexAttribI3iv)( GLuint index, const GLint *v);
1497    void (GLAPIENTRYP VertexAttribI4iv)( GLuint index, const GLint *v);
1498 
1499    void (GLAPIENTRYP VertexAttribI1ui)( GLuint index, GLuint x);
1500    void (GLAPIENTRYP VertexAttribI2ui)( GLuint index, GLuint x, GLuint y);
1501    void (GLAPIENTRYP VertexAttribI3ui)( GLuint index, GLuint x, GLuint y, GLuint z);
1502    void (GLAPIENTRYP VertexAttribI4ui)( GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
1503    void (GLAPIENTRYP VertexAttribI2uiv)( GLuint index, const GLuint *v);
1504    void (GLAPIENTRYP VertexAttribI3uiv)( GLuint index, const GLuint *v);
1505    void (GLAPIENTRYP VertexAttribI4uiv)( GLuint index, const GLuint *v);
1506 
1507    /* GL_ARB_vertex_type_10_10_10_2_rev / GL3.3 */
1508    void (GLAPIENTRYP VertexP2ui)( GLenum type, GLuint value );
1509    void (GLAPIENTRYP VertexP2uiv)( GLenum type, const GLuint *value);
1510 
1511    void (GLAPIENTRYP VertexP3ui)( GLenum type, GLuint value );
1512    void (GLAPIENTRYP VertexP3uiv)( GLenum type, const GLuint *value);
1513 
1514    void (GLAPIENTRYP VertexP4ui)( GLenum type, GLuint value );
1515    void (GLAPIENTRYP VertexP4uiv)( GLenum type, const GLuint *value);
1516 
1517    void (GLAPIENTRYP TexCoordP1ui)( GLenum type, GLuint coords );
1518    void (GLAPIENTRYP TexCoordP1uiv)( GLenum type, const GLuint *coords );
1519 
1520    void (GLAPIENTRYP TexCoordP2ui)( GLenum type, GLuint coords );
1521    void (GLAPIENTRYP TexCoordP2uiv)( GLenum type, const GLuint *coords );
1522 
1523    void (GLAPIENTRYP TexCoordP3ui)( GLenum type, GLuint coords );
1524    void (GLAPIENTRYP TexCoordP3uiv)( GLenum type, const GLuint *coords );
1525 
1526    void (GLAPIENTRYP TexCoordP4ui)( GLenum type, GLuint coords );
1527    void (GLAPIENTRYP TexCoordP4uiv)( GLenum type, const GLuint *coords );
1528 
1529    void (GLAPIENTRYP MultiTexCoordP1ui)( GLenum texture, GLenum type, GLuint coords );
1530    void (GLAPIENTRYP MultiTexCoordP1uiv)( GLenum texture, GLenum type, const GLuint *coords );
1531    void (GLAPIENTRYP MultiTexCoordP2ui)( GLenum texture, GLenum type, GLuint coords );
1532    void (GLAPIENTRYP MultiTexCoordP2uiv)( GLenum texture, GLenum type, const GLuint *coords );
1533    void (GLAPIENTRYP MultiTexCoordP3ui)( GLenum texture, GLenum type, GLuint coords );
1534    void (GLAPIENTRYP MultiTexCoordP3uiv)( GLenum texture, GLenum type, const GLuint *coords );
1535    void (GLAPIENTRYP MultiTexCoordP4ui)( GLenum texture, GLenum type, GLuint coords );
1536    void (GLAPIENTRYP MultiTexCoordP4uiv)( GLenum texture, GLenum type, const GLuint *coords );
1537 
1538    void (GLAPIENTRYP NormalP3ui)( GLenum type, GLuint coords );
1539    void (GLAPIENTRYP NormalP3uiv)( GLenum type, const GLuint *coords );
1540 
1541    void (GLAPIENTRYP ColorP3ui)( GLenum type, GLuint color );
1542    void (GLAPIENTRYP ColorP3uiv)( GLenum type, const GLuint *color );
1543 
1544    void (GLAPIENTRYP ColorP4ui)( GLenum type, GLuint color );
1545    void (GLAPIENTRYP ColorP4uiv)( GLenum type, const GLuint *color );
1546 
1547    void (GLAPIENTRYP SecondaryColorP3ui)( GLenum type, GLuint color );
1548    void (GLAPIENTRYP SecondaryColorP3uiv)( GLenum type, const GLuint *color );
1549 
1550    void (GLAPIENTRYP VertexAttribP1ui)( GLuint index, GLenum type,
1551 					GLboolean normalized, GLuint value);
1552    void (GLAPIENTRYP VertexAttribP2ui)( GLuint index, GLenum type,
1553 					GLboolean normalized, GLuint value);
1554    void (GLAPIENTRYP VertexAttribP3ui)( GLuint index, GLenum type,
1555 					GLboolean normalized, GLuint value);
1556    void (GLAPIENTRYP VertexAttribP4ui)( GLuint index, GLenum type,
1557 					GLboolean normalized, GLuint value);
1558    void (GLAPIENTRYP VertexAttribP1uiv)( GLuint index, GLenum type,
1559 					GLboolean normalized,
1560 					 const GLuint *value);
1561    void (GLAPIENTRYP VertexAttribP2uiv)( GLuint index, GLenum type,
1562 					GLboolean normalized,
1563 					 const GLuint *value);
1564    void (GLAPIENTRYP VertexAttribP3uiv)( GLuint index, GLenum type,
1565 					GLboolean normalized,
1566 					 const GLuint *value);
1567    void (GLAPIENTRYP VertexAttribP4uiv)( GLuint index, GLenum type,
1568 					 GLboolean normalized,
1569 					 const GLuint *value);
1570 
1571    /* GL_ARB_vertex_attrib_64bit / GL 4.1 */
1572    void (GLAPIENTRYP VertexAttribL1d)( GLuint index, GLdouble x);
1573    void (GLAPIENTRYP VertexAttribL2d)( GLuint index, GLdouble x, GLdouble y);
1574    void (GLAPIENTRYP VertexAttribL3d)( GLuint index, GLdouble x, GLdouble y, GLdouble z);
1575    void (GLAPIENTRYP VertexAttribL4d)( GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
1576 
1577 
1578    void (GLAPIENTRYP VertexAttribL1dv)( GLuint index, const GLdouble *v);
1579    void (GLAPIENTRYP VertexAttribL2dv)( GLuint index, const GLdouble *v);
1580    void (GLAPIENTRYP VertexAttribL3dv)( GLuint index, const GLdouble *v);
1581    void (GLAPIENTRYP VertexAttribL4dv)( GLuint index, const GLdouble *v);
1582 
1583    void (GLAPIENTRYP VertexAttribL1ui64ARB)( GLuint index, GLuint64EXT x);
1584    void (GLAPIENTRYP VertexAttribL1ui64vARB)( GLuint index, const GLuint64EXT *v);
1585 
1586    /* GL_NV_half_float */
1587    void (GLAPIENTRYP Vertex2hNV)( GLhalfNV, GLhalfNV );
1588    void (GLAPIENTRYP Vertex2hvNV)( const GLhalfNV * );
1589    void (GLAPIENTRYP Vertex3hNV)( GLhalfNV, GLhalfNV, GLhalfNV );
1590    void (GLAPIENTRYP Vertex3hvNV)( const GLhalfNV * );
1591    void (GLAPIENTRYP Vertex4hNV)( GLhalfNV, GLhalfNV, GLhalfNV, GLhalfNV );
1592    void (GLAPIENTRYP Vertex4hvNV)( const GLhalfNV * );
1593    void (GLAPIENTRYP Normal3hNV)( GLhalfNV, GLhalfNV, GLhalfNV );
1594    void (GLAPIENTRYP Normal3hvNV)( const GLhalfNV * );
1595    void (GLAPIENTRYP Color3hNV)( GLhalfNV, GLhalfNV, GLhalfNV );
1596    void (GLAPIENTRYP Color3hvNV)( const GLhalfNV * );
1597    void (GLAPIENTRYP Color4hNV)( GLhalfNV, GLhalfNV, GLhalfNV, GLhalfNV );
1598    void (GLAPIENTRYP Color4hvNV)( const GLhalfNV * );
1599    void (GLAPIENTRYP TexCoord1hNV)( GLhalfNV );
1600    void (GLAPIENTRYP TexCoord1hvNV)( const GLhalfNV * );
1601    void (GLAPIENTRYP TexCoord2hNV)( GLhalfNV, GLhalfNV );
1602    void (GLAPIENTRYP TexCoord2hvNV)( const GLhalfNV * );
1603    void (GLAPIENTRYP TexCoord3hNV)( GLhalfNV, GLhalfNV, GLhalfNV );
1604    void (GLAPIENTRYP TexCoord3hvNV)( const GLhalfNV * );
1605    void (GLAPIENTRYP TexCoord4hNV)( GLhalfNV, GLhalfNV, GLhalfNV, GLhalfNV );
1606    void (GLAPIENTRYP TexCoord4hvNV)( const GLhalfNV * );
1607    void (GLAPIENTRYP MultiTexCoord1hNV)( GLenum, GLhalfNV );
1608    void (GLAPIENTRYP MultiTexCoord1hvNV)( GLenum, const GLhalfNV * );
1609    void (GLAPIENTRYP MultiTexCoord2hNV)( GLenum, GLhalfNV, GLhalfNV );
1610    void (GLAPIENTRYP MultiTexCoord2hvNV)( GLenum, const GLhalfNV * );
1611    void (GLAPIENTRYP MultiTexCoord3hNV)( GLenum, GLhalfNV, GLhalfNV, GLhalfNV );
1612    void (GLAPIENTRYP MultiTexCoord3hvNV)( GLenum, const GLhalfNV * );
1613    void (GLAPIENTRYP MultiTexCoord4hNV)( GLenum, GLhalfNV, GLhalfNV, GLhalfNV, GLhalfNV );
1614    void (GLAPIENTRYP MultiTexCoord4hvNV)( GLenum, const GLhalfNV * );
1615    void (GLAPIENTRYP VertexAttrib1hNV)( GLuint index, GLhalfNV x );
1616    void (GLAPIENTRYP VertexAttrib1hvNV)( GLuint index, const GLhalfNV *v );
1617    void (GLAPIENTRYP VertexAttrib2hNV)( GLuint index, GLhalfNV x, GLhalfNV y );
1618    void (GLAPIENTRYP VertexAttrib2hvNV)( GLuint index, const GLhalfNV *v );
1619    void (GLAPIENTRYP VertexAttrib3hNV)( GLuint index, GLhalfNV x, GLhalfNV y, GLhalfNV z );
1620    void (GLAPIENTRYP VertexAttrib3hvNV)( GLuint index, const GLhalfNV *v );
1621    void (GLAPIENTRYP VertexAttrib4hNV)( GLuint index, GLhalfNV x, GLhalfNV y, GLhalfNV z, GLhalfNV w );
1622    void (GLAPIENTRYP VertexAttrib4hvNV)( GLuint index, const GLhalfNV *v );
1623    void (GLAPIENTRYP VertexAttribs1hvNV)(GLuint index, GLsizei n, const GLhalfNV *v);
1624    void (GLAPIENTRYP VertexAttribs2hvNV)(GLuint index, GLsizei n, const GLhalfNV *v);
1625    void (GLAPIENTRYP VertexAttribs3hvNV)(GLuint index, GLsizei n, const GLhalfNV *v);
1626    void (GLAPIENTRYP VertexAttribs4hvNV)(GLuint index, GLsizei n, const GLhalfNV *v);
1627    void (GLAPIENTRYP FogCoordhNV)( GLhalfNV );
1628    void (GLAPIENTRYP FogCoordhvNV)( const GLhalfNV * );
1629    void (GLAPIENTRYP SecondaryColor3hNV)( GLhalfNV, GLhalfNV, GLhalfNV );
1630    void (GLAPIENTRYP SecondaryColor3hvNV)( const GLhalfNV * );
1631 
1632    void (GLAPIENTRYP Color3b)( GLbyte red, GLbyte green, GLbyte blue );
1633    void (GLAPIENTRYP Color3d)( GLdouble red, GLdouble green, GLdouble blue );
1634    void (GLAPIENTRYP Color3i)( GLint red, GLint green, GLint blue );
1635    void (GLAPIENTRYP Color3s)( GLshort red, GLshort green, GLshort blue );
1636    void (GLAPIENTRYP Color3ui)( GLuint red, GLuint green, GLuint blue );
1637    void (GLAPIENTRYP Color3us)( GLushort red, GLushort green, GLushort blue );
1638    void (GLAPIENTRYP Color3ub)( GLubyte red, GLubyte green, GLubyte blue );
1639    void (GLAPIENTRYP Color3bv)( const GLbyte *v );
1640    void (GLAPIENTRYP Color3dv)( const GLdouble *v );
1641    void (GLAPIENTRYP Color3iv)( const GLint *v );
1642    void (GLAPIENTRYP Color3sv)( const GLshort *v );
1643    void (GLAPIENTRYP Color3uiv)( const GLuint *v );
1644    void (GLAPIENTRYP Color3usv)( const GLushort *v );
1645    void (GLAPIENTRYP Color3ubv)( const GLubyte *v );
1646    void (GLAPIENTRYP Color4b)( GLbyte red, GLbyte green, GLbyte blue, GLbyte alpha );
1647    void (GLAPIENTRYP Color4d)( GLdouble red, GLdouble green, GLdouble blue,
1648                        GLdouble alpha );
1649    void (GLAPIENTRYP Color4i)( GLint red, GLint green, GLint blue, GLint alpha );
1650    void (GLAPIENTRYP Color4s)( GLshort red, GLshort green, GLshort blue,
1651                        GLshort alpha );
1652    void (GLAPIENTRYP Color4ui)( GLuint red, GLuint green, GLuint blue, GLuint alpha );
1653    void (GLAPIENTRYP Color4us)( GLushort red, GLushort green, GLushort blue,
1654                         GLushort alpha );
1655    void (GLAPIENTRYP Color4ub)( GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha );
1656    void (GLAPIENTRYP Color4iv)( const GLint *v );
1657    void (GLAPIENTRYP Color4bv)( const GLbyte *v );
1658    void (GLAPIENTRYP Color4dv)( const GLdouble *v );
1659    void (GLAPIENTRYP Color4sv)( const GLshort *v);
1660    void (GLAPIENTRYP Color4uiv)( const GLuint *v);
1661    void (GLAPIENTRYP Color4usv)( const GLushort *v);
1662    void (GLAPIENTRYP Color4ubv)( const GLubyte *v);
1663    void (GLAPIENTRYP FogCoordd)( GLdouble d );
1664    void (GLAPIENTRYP FogCoorddv)( const GLdouble *v );
1665    void (GLAPIENTRYP Indexd)( GLdouble c );
1666    void (GLAPIENTRYP Indexi)( GLint c );
1667    void (GLAPIENTRYP Indexs)( GLshort c );
1668    void (GLAPIENTRYP Indexub)( GLubyte c );
1669    void (GLAPIENTRYP Indexdv)( const GLdouble *c );
1670    void (GLAPIENTRYP Indexiv)( const GLint *c );
1671    void (GLAPIENTRYP Indexsv)( const GLshort *c );
1672    void (GLAPIENTRYP Indexubv)( const GLubyte *c );
1673    void (GLAPIENTRYP EdgeFlagv)(const GLboolean *flag);
1674    void (GLAPIENTRYP Normal3b)( GLbyte nx, GLbyte ny, GLbyte nz );
1675    void (GLAPIENTRYP Normal3d)( GLdouble nx, GLdouble ny, GLdouble nz );
1676    void (GLAPIENTRYP Normal3i)( GLint nx, GLint ny, GLint nz );
1677    void (GLAPIENTRYP Normal3s)( GLshort nx, GLshort ny, GLshort nz );
1678    void (GLAPIENTRYP Normal3bv)( const GLbyte *v );
1679    void (GLAPIENTRYP Normal3dv)( const GLdouble *v );
1680    void (GLAPIENTRYP Normal3iv)( const GLint *v );
1681    void (GLAPIENTRYP Normal3sv)( const GLshort *v );
1682    void (GLAPIENTRYP TexCoord1d)( GLdouble s );
1683    void (GLAPIENTRYP TexCoord1i)( GLint s );
1684    void (GLAPIENTRYP TexCoord1s)( GLshort s );
1685    void (GLAPIENTRYP TexCoord2d)( GLdouble s, GLdouble t );
1686    void (GLAPIENTRYP TexCoord2s)( GLshort s, GLshort t );
1687    void (GLAPIENTRYP TexCoord2i)( GLint s, GLint t );
1688    void (GLAPIENTRYP TexCoord3d)( GLdouble s, GLdouble t, GLdouble r );
1689    void (GLAPIENTRYP TexCoord3i)( GLint s, GLint t, GLint r );
1690    void (GLAPIENTRYP TexCoord3s)( GLshort s, GLshort t, GLshort r );
1691    void (GLAPIENTRYP TexCoord4d)( GLdouble s, GLdouble t, GLdouble r, GLdouble q );
1692    void (GLAPIENTRYP TexCoord4i)( GLint s, GLint t, GLint r, GLint q );
1693    void (GLAPIENTRYP TexCoord4s)( GLshort s, GLshort t, GLshort r, GLshort q );
1694    void (GLAPIENTRYP TexCoord1dv)( const GLdouble *v );
1695    void (GLAPIENTRYP TexCoord1iv)( const GLint *v );
1696    void (GLAPIENTRYP TexCoord1sv)( const GLshort *v );
1697    void (GLAPIENTRYP TexCoord2dv)( const GLdouble *v );
1698    void (GLAPIENTRYP TexCoord2iv)( const GLint *v );
1699    void (GLAPIENTRYP TexCoord2sv)( const GLshort *v );
1700    void (GLAPIENTRYP TexCoord3dv)( const GLdouble *v );
1701    void (GLAPIENTRYP TexCoord3iv)( const GLint *v );
1702    void (GLAPIENTRYP TexCoord3sv)( const GLshort *v );
1703    void (GLAPIENTRYP TexCoord4dv)( const GLdouble *v );
1704    void (GLAPIENTRYP TexCoord4iv)( const GLint *v );
1705    void (GLAPIENTRYP TexCoord4sv)( const GLshort *v );
1706    void (GLAPIENTRYP Vertex2d)( GLdouble x, GLdouble y );
1707    void (GLAPIENTRYP Vertex2i)( GLint x, GLint y );
1708    void (GLAPIENTRYP Vertex2s)( GLshort x, GLshort y );
1709    void (GLAPIENTRYP Vertex3d)( GLdouble x, GLdouble y, GLdouble z );
1710    void (GLAPIENTRYP Vertex3i)( GLint x, GLint y, GLint z );
1711    void (GLAPIENTRYP Vertex3s)( GLshort x, GLshort y, GLshort z );
1712    void (GLAPIENTRYP Vertex4d)( GLdouble x, GLdouble y, GLdouble z, GLdouble w );
1713    void (GLAPIENTRYP Vertex4i)( GLint x, GLint y, GLint z, GLint w );
1714    void (GLAPIENTRYP Vertex4s)( GLshort x, GLshort y, GLshort z, GLshort w );
1715    void (GLAPIENTRYP Vertex2dv)( const GLdouble *v );
1716    void (GLAPIENTRYP Vertex2iv)( const GLint *v );
1717    void (GLAPIENTRYP Vertex2sv)( const GLshort *v );
1718    void (GLAPIENTRYP Vertex3dv)( const GLdouble *v );
1719    void (GLAPIENTRYP Vertex3iv)( const GLint *v );
1720    void (GLAPIENTRYP Vertex3sv)( const GLshort *v );
1721    void (GLAPIENTRYP Vertex4dv)( const GLdouble *v );
1722    void (GLAPIENTRYP Vertex4iv)( const GLint *v );
1723    void (GLAPIENTRYP Vertex4sv)( const GLshort *v );
1724    void (GLAPIENTRYP MultiTexCoord1d)(GLenum target, GLdouble s);
1725    void (GLAPIENTRYP MultiTexCoord1dv)(GLenum target, const GLdouble *v);
1726    void (GLAPIENTRYP MultiTexCoord1i)(GLenum target, GLint s);
1727    void (GLAPIENTRYP MultiTexCoord1iv)(GLenum target, const GLint *v);
1728    void (GLAPIENTRYP MultiTexCoord1s)(GLenum target, GLshort s);
1729    void (GLAPIENTRYP MultiTexCoord1sv)(GLenum target, const GLshort *v);
1730    void (GLAPIENTRYP MultiTexCoord2d)(GLenum target, GLdouble s, GLdouble t);
1731    void (GLAPIENTRYP MultiTexCoord2dv)(GLenum target, const GLdouble *v);
1732    void (GLAPIENTRYP MultiTexCoord2i)(GLenum target, GLint s, GLint t);
1733    void (GLAPIENTRYP MultiTexCoord2iv)(GLenum target, const GLint *v);
1734    void (GLAPIENTRYP MultiTexCoord2s)(GLenum target, GLshort s, GLshort t);
1735    void (GLAPIENTRYP MultiTexCoord2sv)(GLenum target, const GLshort *v);
1736    void (GLAPIENTRYP MultiTexCoord3d)(GLenum target, GLdouble s, GLdouble t, GLdouble r);
1737    void (GLAPIENTRYP MultiTexCoord3dv)(GLenum target, const GLdouble *v);
1738    void (GLAPIENTRYP MultiTexCoord3i)(GLenum target, GLint s, GLint t, GLint r);
1739    void (GLAPIENTRYP MultiTexCoord3iv)(GLenum target, const GLint *v);
1740    void (GLAPIENTRYP MultiTexCoord3s)(GLenum target, GLshort s, GLshort t, GLshort r);
1741    void (GLAPIENTRYP MultiTexCoord3sv)(GLenum target, const GLshort *v);
1742    void (GLAPIENTRYP MultiTexCoord4d)(GLenum target, GLdouble s, GLdouble t, GLdouble r,
1743                                GLdouble q);
1744    void (GLAPIENTRYP MultiTexCoord4dv)(GLenum target, const GLdouble *v);
1745    void (GLAPIENTRYP MultiTexCoord4i)(GLenum target, GLint s, GLint t, GLint r, GLint q);
1746    void (GLAPIENTRYP MultiTexCoord4iv)(GLenum target, const GLint *v);
1747    void (GLAPIENTRYP MultiTexCoord4s)(GLenum target, GLshort s, GLshort t, GLshort r,
1748                                GLshort q);
1749    void (GLAPIENTRYP MultiTexCoord4sv)(GLenum target, const GLshort *v);
1750    void (GLAPIENTRYP EvalCoord2dv)( const GLdouble *u );
1751    void (GLAPIENTRYP EvalCoord2d)( GLdouble u, GLdouble v );
1752    void (GLAPIENTRYP EvalCoord1dv)( const GLdouble *u );
1753    void (GLAPIENTRYP EvalCoord1d)( GLdouble u );
1754    void (GLAPIENTRYP Materialf)( GLenum face, GLenum pname, GLfloat param );
1755    void (GLAPIENTRYP Materiali)(GLenum face, GLenum pname, GLint param );
1756    void (GLAPIENTRYP Materialiv)(GLenum face, GLenum pname, const GLint *params );
1757    void (GLAPIENTRYP SecondaryColor3b)( GLbyte red, GLbyte green, GLbyte blue );
1758    void (GLAPIENTRYP SecondaryColor3d)( GLdouble red, GLdouble green, GLdouble blue );
1759    void (GLAPIENTRYP SecondaryColor3i)( GLint red, GLint green, GLint blue );
1760    void (GLAPIENTRYP SecondaryColor3s)( GLshort red, GLshort green, GLshort blue );
1761    void (GLAPIENTRYP SecondaryColor3ui)( GLuint red, GLuint green, GLuint blue );
1762    void (GLAPIENTRYP SecondaryColor3us)( GLushort red, GLushort green, GLushort blue );
1763    void (GLAPIENTRYP SecondaryColor3ub)( GLubyte red, GLubyte green, GLubyte blue );
1764    void (GLAPIENTRYP SecondaryColor3bv)( const GLbyte *v );
1765    void (GLAPIENTRYP SecondaryColor3dv)( const GLdouble *v );
1766    void (GLAPIENTRYP SecondaryColor3iv)( const GLint *v );
1767    void (GLAPIENTRYP SecondaryColor3sv)( const GLshort *v );
1768    void (GLAPIENTRYP SecondaryColor3uiv)( const GLuint *v );
1769    void (GLAPIENTRYP SecondaryColor3usv)( const GLushort *v );
1770    void (GLAPIENTRYP SecondaryColor3ubv)( const GLubyte *v );
1771    void (GLAPIENTRYP VertexAttrib1sNV)(GLuint index, GLshort x);
1772    void (GLAPIENTRYP VertexAttrib1dNV)(GLuint index, GLdouble x);
1773    void (GLAPIENTRYP VertexAttrib2sNV)(GLuint index, GLshort x, GLshort y);
1774    void (GLAPIENTRYP VertexAttrib2dNV)(GLuint index, GLdouble x, GLdouble y);
1775    void (GLAPIENTRYP VertexAttrib3sNV)(GLuint index, GLshort x, GLshort y, GLshort z);
1776    void (GLAPIENTRYP VertexAttrib3dNV)(GLuint index, GLdouble x, GLdouble y, GLdouble z);
1777    void (GLAPIENTRYP VertexAttrib4sNV)(GLuint index, GLshort x, GLshort y, GLshort z,
1778                              GLshort w);
1779    void (GLAPIENTRYP VertexAttrib4dNV)(GLuint index, GLdouble x, GLdouble y, GLdouble z,
1780                              GLdouble w);
1781    void (GLAPIENTRYP VertexAttrib4ubNV)(GLuint index, GLubyte x, GLubyte y, GLubyte z,
1782                               GLubyte w);
1783    void (GLAPIENTRYP VertexAttrib1svNV)(GLuint index, const GLshort *v);
1784    void (GLAPIENTRYP VertexAttrib1dvNV)(GLuint index, const GLdouble *v);
1785    void (GLAPIENTRYP VertexAttrib2svNV)(GLuint index, const GLshort *v);
1786    void (GLAPIENTRYP VertexAttrib2dvNV)(GLuint index, const GLdouble *v);
1787    void (GLAPIENTRYP VertexAttrib3svNV)(GLuint index, const GLshort *v);
1788    void (GLAPIENTRYP VertexAttrib3dvNV)(GLuint index, const GLdouble *v);
1789    void (GLAPIENTRYP VertexAttrib4svNV)(GLuint index, const GLshort *v);
1790    void (GLAPIENTRYP VertexAttrib4dvNV)(GLuint index, const GLdouble *v);
1791    void (GLAPIENTRYP VertexAttrib4ubvNV)(GLuint index, const GLubyte *v);
1792    void (GLAPIENTRYP VertexAttribs1svNV)(GLuint index, GLsizei n, const GLshort *v);
1793    void (GLAPIENTRYP VertexAttribs1fvNV)(GLuint index, GLsizei n, const GLfloat *v);
1794    void (GLAPIENTRYP VertexAttribs1dvNV)(GLuint index, GLsizei n, const GLdouble *v);
1795    void (GLAPIENTRYP VertexAttribs2svNV)(GLuint index, GLsizei n, const GLshort *v);
1796    void (GLAPIENTRYP VertexAttribs2fvNV)(GLuint index, GLsizei n, const GLfloat *v);
1797    void (GLAPIENTRYP VertexAttribs2dvNV)(GLuint index, GLsizei n, const GLdouble *v);
1798    void (GLAPIENTRYP VertexAttribs3svNV)(GLuint index, GLsizei n, const GLshort *v);
1799    void (GLAPIENTRYP VertexAttribs3fvNV)(GLuint index, GLsizei n, const GLfloat *v);
1800    void (GLAPIENTRYP VertexAttribs3dvNV)(GLuint index, GLsizei n, const GLdouble *v);
1801    void (GLAPIENTRYP VertexAttribs4svNV)(GLuint index, GLsizei n, const GLshort *v);
1802    void (GLAPIENTRYP VertexAttribs4fvNV)(GLuint index, GLsizei n, const GLfloat *v);
1803    void (GLAPIENTRYP VertexAttribs4dvNV)(GLuint index, GLsizei n, const GLdouble *v);
1804    void (GLAPIENTRYP VertexAttribs4ubvNV)(GLuint index, GLsizei n, const GLubyte *v);
1805    void (GLAPIENTRYP VertexAttrib1s)(GLuint index, GLshort x);
1806    void (GLAPIENTRYP VertexAttrib1d)(GLuint index, GLdouble x);
1807    void (GLAPIENTRYP VertexAttrib2s)(GLuint index, GLshort x, GLshort y);
1808    void (GLAPIENTRYP VertexAttrib2d)(GLuint index, GLdouble x, GLdouble y);
1809    void (GLAPIENTRYP VertexAttrib3s)(GLuint index, GLshort x, GLshort y, GLshort z);
1810    void (GLAPIENTRYP VertexAttrib3d)(GLuint index, GLdouble x, GLdouble y, GLdouble z);
1811    void (GLAPIENTRYP VertexAttrib4s)(GLuint index, GLshort x, GLshort y, GLshort z,
1812                               GLshort w);
1813    void (GLAPIENTRYP VertexAttrib4d)(GLuint index, GLdouble x, GLdouble y, GLdouble z,
1814                               GLdouble w);
1815    void (GLAPIENTRYP VertexAttrib1sv)(GLuint index, const GLshort *v);
1816    void (GLAPIENTRYP VertexAttrib1dv)(GLuint index, const GLdouble *v);
1817    void (GLAPIENTRYP VertexAttrib2sv)(GLuint index, const GLshort *v);
1818    void (GLAPIENTRYP VertexAttrib2dv)(GLuint index, const GLdouble *v);
1819    void (GLAPIENTRYP VertexAttrib3sv)(GLuint index, const GLshort *v);
1820    void (GLAPIENTRYP VertexAttrib3dv)(GLuint index, const GLdouble *v);
1821    void (GLAPIENTRYP VertexAttrib4sv)(GLuint index, const GLshort *v);
1822    void (GLAPIENTRYP VertexAttrib4dv)(GLuint index, const GLdouble *v);
1823    void (GLAPIENTRYP VertexAttrib4bv)(GLuint index, const GLbyte * v);
1824    void (GLAPIENTRYP VertexAttrib4iv)(GLuint index, const GLint * v);
1825    void (GLAPIENTRYP VertexAttrib4ubv)(GLuint index, const GLubyte * v);
1826    void (GLAPIENTRYP VertexAttrib4usv)(GLuint index, const GLushort * v);
1827    void (GLAPIENTRYP VertexAttrib4uiv)(GLuint index, const GLuint * v);
1828    void (GLAPIENTRYP VertexAttrib4Nbv)(GLuint index, const GLbyte * v);
1829    void (GLAPIENTRYP VertexAttrib4Nsv)(GLuint index, const GLshort * v);
1830    void (GLAPIENTRYP VertexAttrib4Niv)(GLuint index, const GLint * v);
1831    void (GLAPIENTRYP VertexAttrib4Nub)(GLuint index, GLubyte x, GLubyte y, GLubyte z,
1832                                 GLubyte w);
1833    void (GLAPIENTRYP VertexAttrib4Nubv)(GLuint index, const GLubyte * v);
1834    void (GLAPIENTRYP VertexAttrib4Nusv)(GLuint index, const GLushort * v);
1835    void (GLAPIENTRYP VertexAttrib4Nuiv)(GLuint index, const GLuint * v);
1836    void (GLAPIENTRYP VertexAttribI1iv)(GLuint index, const GLint *v);
1837    void (GLAPIENTRYP VertexAttribI1uiv)(GLuint index, const GLuint *v);
1838    void (GLAPIENTRYP VertexAttribI4bv)(GLuint index, const GLbyte *v);
1839    void (GLAPIENTRYP VertexAttribI4sv)(GLuint index, const GLshort *v);
1840    void (GLAPIENTRYP VertexAttribI4ubv)(GLuint index, const GLubyte *v);
1841    void (GLAPIENTRYP VertexAttribI4usv)(GLuint index, const GLushort *v);
1842 } GLvertexformat;
1843 
1844 
1845 #endif /* DD_INCLUDED */
1846