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source: vbox/trunk/src/VBox/Additions/common/crOpenGL/dri_drv.c@ 35263

Last change on this file since 35263 was 33540, checked in by vboxsync, 14 years ago
*: spelling fixes, thanks Timeless!
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 37.4 KB

Line
1	/* $Id: dri_drv.c 33540 2010-10-28 09:27:05Z vboxsync $ */
2
3	/** @file
4	* VBox OpenGL DRI driver functions
5	*/
6
7	/*
8	* Copyright (C) 2009 Oracle Corporation
9	*
10	* This file is part of VirtualBox Open Source Edition (OSE), as
11	* available from http://www.virtualbox.org. This file is free software;
12	* you can redistribute it and/or modify it under the terms of the GNU
13	* General Public License (GPL) as published by the Free Software
14	* Foundation, in version 2 as it comes in the "COPYING" file of the
15	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17	* --------------------------------------------------------------------
18	*
19	* This file is based in part on the tdfx driver from X.Org/Mesa, with the
20	* following copyright notice:
21	*
22	* Copyright 2000 VA Linux Systems Inc., Fremont, California.
23	*
24	* All Rights Reserved.
25	*
26	* Permission is hereby granted, free of charge, to any person obtaining a
27	* copy of this software and associated documentation files (the "Software"),
28	* to deal in the Software without restriction, including without limitation
29	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
30	* and/or sell copies of the Software, and to permit persons to whom the
31	* Software is furnished to do so, subject to the following conditions:
32	*
33	* The above copyright notice and this permission notice (including the next
34	* paragraph) shall be included in all copies or substantial portions of the
35	* Software.
36	*
37	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
38	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
39	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
40	* VA LINUX SYSTEMS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
41	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
42	* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
43	* SOFTWARE.
44	*
45	* Original rewrite:
46	* Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000
47	*
48	* Authors:
49	* Gareth Hughes <gareth@valinux.com>
50	*/
51
52	#include "cr_error.h"
53	#include "cr_gl.h"
54	#include "stub.h"
55	#include "dri_drv.h"
56	#include "DD_gl.h"
57
58	/** @todo some of those are or'ed with GL_VERSIONS and ain't needed here*/
59	#define need_GL_ARB_occlusion_query
60	#define need_GL_ARB_point_parameters
61	#define need_GL_NV_point_sprite
62	#define need_GL_ARB_texture_compression
63	#define need_GL_ARB_transpose_matrix
64	#define need_GL_ARB_vertex_buffer_object
65	#define need_GL_ARB_vertex_program
66	#define need_GL_ARB_window_pos
67	#define need_GL_EXT_blend_color
68	#define need_GL_EXT_blend_minmax
69	#define need_GL_EXT_blend_func_separate
70	#define need_GL_EXT_fog_coord
71	#define need_GL_EXT_multi_draw_arrays
72	#define need_GL_EXT_secondary_color
73	#define need_GL_EXT_texture_object
74	#define need_GL_EXT_texture3D
75	#define need_GL_VERSION_1_3
76	#define need_GL_VERSION_1_4
77	#define need_GL_VERSION_1_5
78
79	#include "drivers/dri/common/extension_helper.h"
80
81	/** @todo add more which are supported by chromium like GL_NV_vertex_program etc.*/
82	static const struct dri_extension vbox_extensions[] = {
83	{ "GL_ARB_depth_texture", NULL },
84	{ "GL_ARB_fragment_program", NULL },
85	{ "GL_ARB_multitexture", NULL },
86	{ "GL_ARB_occlusion_query", GL_ARB_occlusion_query_functions },
87	{ "GL_ARB_point_parameters", GL_ARB_point_parameters_functions },
88	{ "GL_NV_point_sprite", GL_NV_point_sprite_functions },
89	{ "GL_ARB_shadow", NULL },
90	{ "GL_ARB_shadow_ambient", NULL },
91	{ "GL_ARB_texture_border_clamp", NULL },
92	{ "GL_ARB_texture_compression", GL_ARB_texture_compression_functions },
93	{ "GL_ARB_texture_cube_map", NULL },
94	{ "GL_ARB_texture_env_add", NULL },
95	{ "GL_ARB_texture_env_combine", NULL },
96	{ "GL_EXT_texture_env_combine", NULL },
97	{ "GL_ARB_texture_env_crossbar", NULL },
98	{ "GL_ARB_texture_env_dot3", NULL },
99	{ "GL_EXT_texture_env_dot3", NULL },
100	{ "GL_ARB_texture_mirrored_repeat", NULL },
101	{ "GL_ARB_texture_non_power_of_two", NULL },
102	{ "GL_ARB_transpose_matrix", GL_ARB_transpose_matrix_functions },
103	{ "GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions },
104	{ "GL_ARB_vertex_program", GL_ARB_vertex_program_functions },
105	{ "GL_ARB_window_pos", GL_ARB_window_pos_functions },
106	{ "GL_EXT_blend_color", GL_EXT_blend_color_functions },
107	{ "GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions },
108	{ "GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions },
109	{ "GL_EXT_blend_subtract", NULL },
110	{ "GL_EXT_texture_env_add", NULL }, /** @todo that's an alias to GL_ARB version, remove it?*/
111	{ "GL_EXT_fog_coord", GL_EXT_fog_coord_functions },
112	{ "GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions },
113	{ "GL_EXT_secondary_color", GL_EXT_secondary_color_functions },
114	{ "GL_EXT_shadow_funcs", NULL },
115	{ "GL_EXT_stencil_wrap", NULL },
116	{ "GL_EXT_texture_cube_map", NULL }, /** @todo another alias*/
117	{ "GL_EXT_texture_edge_clamp", NULL },
118	{ "GL_EXT_texture_filter_anisotropic", NULL },
119	{ "GL_EXT_texture_lod_bias", NULL },
120	{ "GL_EXT_texture_object", GL_EXT_texture_object_functions },
121	{ "GL_EXT_texture3D", GL_EXT_texture3D_functions },
122	{ "GL_NV_texgen_reflection", NULL },
123	{ "GL_ARB_texture_rectangle", NULL },
124	{ "GL_SGIS_generate_mipmap", NULL },
125	{ "GL_SGIS_texture_edge_clamp", NULL } /** @todo another alias*/
126	};
127
128	static void
129	vboxdriInitExtensions(GLcontext * ctx)
130	{
131	/** @todo have to check extensions supported by host here first */
132	driInitExtensions(ctx, vbox_extensions, GL_FALSE);
133	}
134
135	static GLvertexformat vboxdriTnlVtxFmt;
136
137
138	/* This callback tells us that Mesa's internal state has changed. We probably
139	* don't need to handle this ourselves, so just pass it on to other parts of
140	* Mesa we may be using, as the swrast driver and others do */
141	static void
142	vboxDDUpdateState(GLcontext * ctx, GLuint new_state)
143	{
144	_swrast_InvalidateState(ctx, new_state);
145	_swsetup_InvalidateState(ctx, new_state);
146	_vbo_InvalidateState(ctx, new_state);
147	_tnl_InvalidateState(ctx, new_state);
148	}
149
150	#if 0 /* See comment in vboxdriInitFuncs */
151	static void
152	vboxDDGetBufferSize(GLframebuffer buffer, GLuint width, GLuint *height)
153	{
154	/do something, note it's obsolete/
155	}
156
157	static void
158	vboxDDResizeBuffer( GLcontext ctx, GLframebuffer fb,
159	GLuint width, GLuint height)
160	{
161	/do something, note it's obsolete/
162	}
163
164	static void
165	vboxDDError(GLcontext *ctx)
166	{
167	//__GLcontextRec::ErrorValue contains the error value.
168	}
169	#endif
170
171	static void
172	vboxDDDrawPixels(GLcontext *ctx,
173	GLint x, GLint y, GLsizei width, GLsizei height,
174	GLenum format, GLenum type,
175	const struct gl_pixelstore_attrib *unpack,
176	const GLvoid *pixels)
177	{
178	}
179
180	static void
181	vboxDDReadPixels(GLcontext *ctx,
182	GLint x, GLint y, GLsizei width, GLsizei height,
183	GLenum format, GLenum type,
184	const struct gl_pixelstore_attrib *unpack,
185	GLvoid *dest)
186	{
187	}
188
189	static void
190	vboxDDCopyPixels(GLcontext *ctx, GLint srcx, GLint srcy,
191	GLsizei width, GLsizei height,
192	GLint dstx, GLint dsty, GLenum type)
193	{
194	}
195
196	static void
197	vboxDDBitmap(GLcontext *ctx,
198	GLint x, GLint y, GLsizei width, GLsizei height,
199	const struct gl_pixelstore_attrib *unpack,
200	const GLubyte *bitmap)
201	{
202	}
203
204	static void
205	vboxDDTexImage1D(GLcontext *ctx, GLenum target, GLint level,
206	GLint internalFormat,
207	GLint width, GLint border,
208	GLenum format, GLenum type, const GLvoid *pixels,
209	const struct gl_pixelstore_attrib *packing,
210	struct gl_texture_object *texObj,
211	struct gl_texture_image *texImage)
212	{
213	}
214
215	static void
216	vboxDDTexImage2D(GLcontext *ctx, GLenum target, GLint level,
217	GLint internalFormat,
218	GLint width, GLint height, GLint border,
219	GLenum format, GLenum type, const GLvoid *pixels,
220	const struct gl_pixelstore_attrib *packing,
221	struct gl_texture_object *texObj,
222	struct gl_texture_image *texImage)
223	{
224	}
225
226	static void
227	vboxDDTexImage3D(GLcontext *ctx, GLenum target, GLint level,
228	GLint internalFormat,
229	GLint width, GLint height, GLint depth, GLint border,
230	GLenum format, GLenum type, const GLvoid *pixels,
231	const struct gl_pixelstore_attrib *packing,
232	struct gl_texture_object *texObj,
233	struct gl_texture_image *texImage)
234	{
235	}
236
237	static void
238	vboxDDTexSubImage1D(GLcontext *ctx, GLenum target, GLint level,
239	GLint xoffset, GLsizei width,
240	GLenum format, GLenum type,
241	const GLvoid *pixels,
242	const struct gl_pixelstore_attrib *packing,
243	struct gl_texture_object *texObj,
244	struct gl_texture_image *texImage)
245	{
246	}
247
248	static void
249	vboxDDTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
250	GLint xoffset, GLint yoffset,
251	GLsizei width, GLsizei height,
252	GLenum format, GLenum type,
253	const GLvoid *pixels,
254	const struct gl_pixelstore_attrib *packing,
255	struct gl_texture_object *texObj,
256	struct gl_texture_image *texImage)
257	{
258	}
259
260
261	static void
262	vboxDDTexSubImage3D(GLcontext *ctx, GLenum target, GLint level,
263	GLint xoffset, GLint yoffset, GLint zoffset,
264	GLsizei width, GLsizei height, GLint depth,
265	GLenum format, GLenum type,
266	const GLvoid *pixels,
267	const struct gl_pixelstore_attrib *packing,
268	struct gl_texture_object *texObj,
269	struct gl_texture_image *texImage)
270	{
271	}
272
273
274	static void
275	vboxDDGetTexImage(GLcontext *ctx, GLenum target, GLint level,
276	GLenum format, GLenum type, GLvoid *pixels,
277	struct gl_texture_object *texObj,
278	struct gl_texture_image *texImage)
279	{
280	}
281
282	static void
283	vboxDDBindTexture(GLcontext *ctx, GLenum target,
284	struct gl_texture_object *tObj)
285	{
286	}
287
288	static GLboolean
289	vboxDDIsTextureResident(GLcontext ctx, struct gl_texture_object t)
290	{
291	}
292
293	static void
294	vboxDDPrioritizeTexture(GLcontext ctx, struct gl_texture_object t,
295	GLclampf priority)
296	{
297	}
298
299	static void
300	vboxDDBlendColor(GLcontext *ctx, const GLfloat color[4])
301	{
302	}
303
304	static void
305	vboxDDClearColor(GLcontext *ctx, const GLfloat color[4])
306	{
307	}
308
309	static void
310	vboxDDClearIndex(GLcontext *ctx, GLuint index)
311	{
312	}
313
314	static void
315	vboxDDClipPlane(GLcontext ctx, GLenum plane, const GLfloat equation)
316	{
317	}
318
319	/@todo Enable or disable server-side gl capabilities, not related to glEnable? /
320	static void
321	vboxDDEnable(GLcontext *ctx, GLenum cap, GLboolean state)
322	{
323	if (state)
324	cr_glEnable(cap);
325	else
326	cr_glDisable(cap);
327	}
328
329	static void
330	vboxDDRenderMode(GLcontext *ctx, GLenum mode)
331	{
332	cr_glRenderMode(mode);
333	}
334
335	static void
336	vboxDDTexParameter(GLcontext *ctx, GLenum target,
337	struct gl_texture_object *texObj,
338	GLenum pname, const GLfloat *params)
339	{
340	}
341
342	/*Note, checking glGetError before and after those calls is the only way
343	*to return if we succeeded to get value or not, but it will add 2 sync calls and
344	*will reset glGetError value returned in case application calls it explicitly
345	*/
346	static GLboolean
347	vboxDDGetBooleanv(GLcontext ctx, GLenum pname, GLboolean result)
348	{
349	cr_glGetBooleanv(pname, result);
350	return GL_TRUE;
351	}
352
353	static GLboolean
354	vboxDDGetDoublev(GLcontext ctx, GLenum pname, GLdouble result)
355	{
356	cr_glGetDoublev(pname, result);
357	return GL_TRUE;
358	}
359
360	static GLboolean
361	vboxDDGetFloatv(GLcontext ctx, GLenum pname, GLfloat result)
362	{
363	cr_glGetFloatv(pname, result);
364	return GL_TRUE;
365	}
366
367	static GLboolean
368	vboxDDGetIntegerv(GLcontext ctx, GLenum pname, GLint result)
369	{
370	cr_glGetIntegerv(pname, result);
371	return GL_TRUE;
372	}
373
374	static GLboolean
375	vboxDDGetPointerv(GLcontext ctx, GLenum pname, GLvoid *result)
376	{
377	cr_glGetPointerv(pname, result);
378	return GL_TRUE;
379	}
380
381	/** @todo
382	* change stub's createcontext to reuse driver private part of mesa's ctx to store stub ctx info.
383	*/
384	#define VBOX_GL_FUNC(func) vboxDD_gl##func
385	static void
386	vboxdriInitFuncs(struct dd_function_table *driver)
387	{
388	driver->GetString = VBOX_GL_FUNC(GetString);
389	driver->UpdateState = vboxDDUpdateState;
390	#if 0
391	/* I assume that we don't need to change these. In that case, prefer the
392	* default implementation over a stub. */
393	driver->GetBufferSize = vboxDDGetBufferSize;
394	driver->ResizeBuffers = vboxDDResizeBuffer;
395	driver->Error = vboxDDError;
396	#endif
397
398	driver->Finish = VBOX_GL_FUNC(Finish);
399	driver->Flush = VBOX_GL_FUNC(Flush);
400
401	/* framebuffer/image functions */
402	driver->Clear = VBOX_GL_FUNC(Clear);
403	driver->Accum = VBOX_GL_FUNC(Accum);
404	// driver->RasterPos = VBOX_GL_FUNC(RasterPos); /* No such element in driver /
405	driver->DrawPixels = vboxDDDrawPixels;
406	driver->ReadPixels = vboxDDReadPixels;
407	driver->CopyPixels = vboxDDCopyPixels;
408	driver->Bitmap = vboxDDBitmap;
409
410	/* Texture functions */
411	/** @todo deal with texnames and gl_texture_object pointers which are passed here*/
412	driver->ChooseTextureFormat = NULL;
413	driver->TexImage1D = vboxDDTexImage1D;
414	driver->TexImage2D = vboxDDTexImage2D;
415	driver->TexImage3D = vboxDDTexImage3D;
416	driver->TexSubImage1D = vboxDDTexSubImage1D;
417	driver->TexSubImage2D = vboxDDTexSubImage2D;
418	driver->TexSubImage3D = vboxDDTexSubImage3D;
419	driver->GetTexImage = vboxDDGetTexImage;
420	driver->CopyTexImage1D = VBOX_GL_FUNC(CopyTexImage1D);
421	driver->CopyTexImage2D = VBOX_GL_FUNC(CopyTexImage2D);
422	driver->CopyTexSubImage1D = VBOX_GL_FUNC(CopyTexSubImage1D);
423	driver->CopyTexSubImage2D = VBOX_GL_FUNC(CopyTexSubImage2D);
424	driver->CopyTexSubImage3D = VBOX_GL_FUNC(CopyTexSubImage3D);
425	// driver->GenerateMipmap = VBOX_GL_FUNC(GenerateMipmap); /** @todo or NULL */
426	// driver->TestProxyTexImage = vboxDDTestProxyTexImage; /** @todo just pass to glTexImage as we take care or proxy textures there */
427	// driver->CompressedTexImage1D = VBOX_GL_FUNC(CompressedTexImage1D);
428	// driver->CompressedTexImage2D = VBOX_GL_FUNC(CompressedTexImage2D);
429	// driver->CompressedTexImage3D = VBOX_GL_FUNC(CompressedTexImage3D);
430	// driver->CompressedTexSubImage1D = VBOX_GL_FUNC(CompressedTexSubImage1D);
431	// driver->CompressedTexSubImage2D = VBOX_GL_FUNC(CompressedTexSubImage2D);
432	// driver->CompressedTexSubImage3D = VBOX_GL_FUNC(CompressedTexSubImage3D);
433	// driver->GetCompressedTexImage = VBOX_GL_FUNC(GetCompressedTexImage);
434	// driver->CompressedTextureSize = NULL; /** @todo */
435	driver->BindTexture = vboxDDBindTexture;
436	// driver->NewTextureObject = vboxDDNewTextureObject; /** @todo */
437	// driver->DeleteTexture = vboxDDDeleteTexture; /** @todo */
438	// driver->NewTextureImage = vboxDDNewTextureImage; /** @todo */
439	// driver->FreeTexImageData = vboxDDFreeTexImageData; /** @todo */
440	// driver->MapTexture = vboxDDMapTexture; /** @todo */
441	// driver->UnmapTexture = vboxDDUnmapTexture; /** @todo */
442	// driver->TextureMemCpy = vboxDDTextureMemCpy; /** @todo */
443	driver->IsTextureResident = vboxDDIsTextureResident;
444	driver->PrioritizeTexture = vboxDDPrioritizeTexture;
445	driver->ActiveTexture = VBOX_GL_FUNC(ActiveTextureARB);
446	// driver->UpdateTexturePalette = vboxDDUpdateTexturePalette; /** @todo */
447
448	/* imaging */
449	/*driver->CopyColorTable = _swrast_CopyColorTable;
450	driver->CopyColorSubTable = _swrast_CopyColorSubTable;
451	driver->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
452	driver->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;*/
453
454	/* Vertex/fragment programs */
455	driver->BindProgram = NULL;
456	// driver->NewProgram = _mesa_new_program; /** @todo */
457	// driver->DeleteProgram = _mesa_delete_program; /** @todo */
458	driver->ProgramStringNotify = NULL;
459	#if FEATURE_MESA_program_debug
460	// driver->GetProgramRegister = _mesa_get_program_register; /** @todo */
461	#endif /* FEATURE_MESA_program_debug */
462	driver->IsProgramNative = NULL;
463
464	/* simple state commands */
465	driver->AlphaFunc = VBOX_GL_FUNC(AlphaFunc);
466	driver->BlendColor = vboxDDBlendColor;
467	// driver->BlendEquationSeparate = VBOX_GL_FUNC(BlendEquationSeparate); /** @todo */
468	driver->BlendFuncSeparate = VBOX_GL_FUNC(BlendFuncSeparateEXT);
469	driver->ClearColor = vboxDDClearColor;
470	driver->ClearDepth = VBOX_GL_FUNC(ClearDepth);
471	driver->ClearIndex = vboxDDClearIndex;
472	driver->ClearStencil = VBOX_GL_FUNC(ClearStencil);
473	driver->ClipPlane = vboxDDClipPlane;
474	driver->ColorMask = VBOX_GL_FUNC(ColorMask);
475	driver->ColorMaterial = VBOX_GL_FUNC(ColorMaterial);
476	driver->CullFace = VBOX_GL_FUNC(CullFace);
477	driver->DrawBuffer = VBOX_GL_FUNC(DrawBuffer); /** @todo */
478	// driver->DrawBuffers = VBOX_GL_FUNC(DrawBuffers); /** @todo */
479	driver->FrontFace = VBOX_GL_FUNC(FrontFace);
480	driver->DepthFunc = VBOX_GL_FUNC(DepthFunc);
481	driver->DepthMask = VBOX_GL_FUNC(DepthMask);
482	driver->DepthRange = VBOX_GL_FUNC(DepthRange);
483	driver->Enable = vboxDDEnable;
484	driver->Fogfv = VBOX_GL_FUNC(Fogfv);
485	driver->Hint = VBOX_GL_FUNC(Hint);
486	driver->IndexMask = VBOX_GL_FUNC(IndexMask);
487	driver->Lightfv = VBOX_GL_FUNC(Lightfv);
488	driver->LightModelfv = VBOX_GL_FUNC(LightModelfv);
489	driver->LineStipple = VBOX_GL_FUNC(LineStipple);
490	driver->LineWidth = VBOX_GL_FUNC(LineWidth);
491	// driver->LogicOpcode = VBOX_GL_FUNC(LogicOpcode); /** @todo */
492	driver->PointParameterfv = VBOX_GL_FUNC(PointParameterfvARB);
493	driver->PointSize = VBOX_GL_FUNC(PointSize);
494	driver->PolygonMode = VBOX_GL_FUNC(PolygonMode);
495	driver->PolygonOffset = VBOX_GL_FUNC(PolygonOffset);
496	driver->PolygonStipple = VBOX_GL_FUNC(PolygonStipple);
497	driver->ReadBuffer = VBOX_GL_FUNC(ReadBuffer);
498	driver->RenderMode = vboxDDRenderMode;
499	driver->Scissor = VBOX_GL_FUNC(Scissor);
500	driver->ShadeModel = VBOX_GL_FUNC(ShadeModel);
501	// driver->StencilFuncSeparate = VBOX_GL_FUNC(StencilFuncSeparate); /** @todo */
502	// driver->StencilOpSeparate = VBOX_GL_FUNC(StencilOpSeparate); /** @todo */
503	// driver->StencilMaskSeparate = VBOX_GL_FUNC(StencilMaskSeparate); /** @todo */
504	driver->TexGen = VBOX_GL_FUNC(TexGenfv);
505	driver->TexEnv = VBOX_GL_FUNC(TexEnvfv);
506	driver->TexParameter = vboxDDTexParameter;
507	// driver->TextureMatrix = VBOX_GL_FUNC(TextureMatrix); /** @todo */
508	driver->Viewport = VBOX_GL_FUNC(Viewport);
509
510	/* vertex arrays */
511	driver->VertexPointer = VBOX_GL_FUNC(VertexPointer);
512	driver->NormalPointer = VBOX_GL_FUNC(NormalPointer);
513	driver->ColorPointer = VBOX_GL_FUNC(ColorPointer);
514	driver->FogCoordPointer = VBOX_GL_FUNC(FogCoordPointerEXT);
515	driver->IndexPointer = VBOX_GL_FUNC(IndexPointer);
516	driver->SecondaryColorPointer = VBOX_GL_FUNC(SecondaryColorPointerEXT);
517	driver->TexCoordPointer = VBOX_GL_FUNC(TexCoordPointer);
518	driver->EdgeFlagPointer = VBOX_GL_FUNC(EdgeFlagPointer);
519	// driver->VertexAttribPointer = VBOX_GL_FUNC(VertexAttribPointer); /** @todo */
520	// driver->LockArraysEXT = VBOX_GL_FUNC(LockArraysEXT); /** @todo */
521	// driver->UnlockArraysEXT = VBOX_GL_FUNC(UnlockArraysEXT); /** @todo */
522
523	/* state queries */
524	driver->GetBooleanv = vboxDDGetBooleanv;
525	driver->GetDoublev = vboxDDGetDoublev;
526	driver->GetFloatv = vboxDDGetFloatv;
527	driver->GetIntegerv = vboxDDGetIntegerv;
528	driver->GetPointerv = vboxDDGetPointerv;
529
530	/** @todo */
531	#if FEATURE_ARB_vertex_buffer_object
532	// driver->NewBufferObject = _mesa_new_buffer_object;
533	// driver->DeleteBuffer = _mesa_delete_buffer_object;
534	// driver->BindBuffer = NULL;
535	// driver->BufferData = _mesa_buffer_data;
536	// driver->BufferSubData = _mesa_buffer_subdata;
537	// driver->GetBufferSubData = _mesa_buffer_get_subdata;
538	// driver->MapBuffer = _mesa_buffer_map;
539	// driver->UnmapBuffer = _mesa_buffer_unmap;
540	#endif
541
542	/** @todo */
543	#if FEATURE_EXT_framebuffer_object
544	// driver->NewFramebuffer = _mesa_new_framebuffer;
545	// driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
546	// driver->RenderTexture = _mesa_render_texture;
547	// driver->FinishRenderTexture = _mesa_finish_render_texture;
548	// driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
549	#endif
550
551	/** @todo */
552	#if FEATURE_EXT_framebuffer_blit
553	// driver->BlitFramebuffer = _swrast_BlitFramebuffer;
554	#endif
555
556	/* query objects */
557	// driver->NewQueryObject = VBOX_GL_FUNC(NewQueryObject); /** @todo */
558	// driver->DeleteQuery = VBOX_GL_FUNC(DeleteQuery); /** @todo */
559	// driver->BeginQuery = VBOX_GL_FUNC(BeginQuery); /** @todo */
560	// driver->EndQuery = VBOX_GL_FUNC(EndQuery); /** @todo */
561	// driver->WaitQuery = VBOX_GL_FUNC(WaitQuery); /** @todo */
562
563	/* APPLE_vertex_array_object */
564	/*
565	driver->NewArrayObject = _mesa_new_array_object;
566	driver->DeleteArrayObject = _mesa_delete_array_object;
567	driver->BindArrayObject = NULL;
568	*/
569
570	/* T&L stuff */
571	driver->NeedValidate = GL_FALSE;
572	driver->ValidateTnlModule = NULL;
573	driver->CurrentExecPrimitive = 0;
574	driver->CurrentSavePrimitive = 0;
575	driver->NeedFlush = 0;
576	driver->SaveNeedFlush = 0;
577
578	// driver->ProgramStringNotify = _tnl_program_string; /** @todo */
579	driver->FlushVertices = NULL;
580	driver->SaveFlushVertices = NULL;
581	driver->NotifySaveBegin = NULL;
582	driver->LightingSpaceChange = NULL;
583
584	/* display list */
585	driver->NewList = VBOX_GL_FUNC(NewList);
586	driver->EndList = VBOX_GL_FUNC(EndList);
587	// driver->BeginCallList = VBOX_GL_FUNC(BeginCallList); /** @todo */
588	// driver->EndCallList = VBOX_GL_FUNC(EndCallList); /** @todo */
589
590
591	/* shaders */
592	/*
593	driver->AttachShader = _mesa_attach_shader;
594	driver->BindAttribLocation = _mesa_bind_attrib_location;
595	driver->CompileShader = _mesa_compile_shader;
596	driver->CreateProgram = _mesa_create_program;
597	driver->CreateShader = _mesa_create_shader;
598	driver->DeleteProgram2 = _mesa_delete_program2;
599	driver->DeleteShader = _mesa_delete_shader;
600	driver->DetachShader = _mesa_detach_shader;
601	driver->GetActiveAttrib = _mesa_get_active_attrib;
602	driver->GetActiveUniform = _mesa_get_active_uniform;
603	driver->GetAttachedShaders = _mesa_get_attached_shaders;
604	driver->GetAttribLocation = _mesa_get_attrib_location;
605	driver->GetHandle = _mesa_get_handle;
606	driver->GetProgramiv = _mesa_get_programiv;
607	driver->GetProgramInfoLog = _mesa_get_program_info_log;
608	driver->GetShaderiv = _mesa_get_shaderiv;
609	driver->GetShaderInfoLog = _mesa_get_shader_info_log;
610	driver->GetShaderSource = _mesa_get_shader_source;
611	driver->GetUniformfv = _mesa_get_uniformfv;
612	driver->GetUniformiv = _mesa_get_uniformiv;
613	driver->GetUniformLocation = _mesa_get_uniform_location;
614	driver->IsProgram = _mesa_is_program;
615	driver->IsShader = _mesa_is_shader;
616	driver->LinkProgram = _mesa_link_program;
617	driver->ShaderSource = _mesa_shader_source;
618	driver->Uniform = _mesa_uniform;
619	driver->UniformMatrix = _mesa_uniform_matrix;
620	driver->UseProgram = _mesa_use_program;
621	driver->ValidateProgram = _mesa_validate_program;
622	*/
623	}
624
625	static void
626	vboxdriInitTnlVtxFmt(GLvertexformat *pVtxFmt)
627	{
628	pVtxFmt->ArrayElement = VBOX_GL_FUNC(ArrayElement);
629	pVtxFmt->Begin = VBOX_GL_FUNC(Begin);
630	pVtxFmt->CallList = VBOX_GL_FUNC(CallList);
631	pVtxFmt->CallLists = VBOX_GL_FUNC(CallLists);
632	pVtxFmt->Color3f = VBOX_GL_FUNC(Color3f);
633	pVtxFmt->Color3fv = VBOX_GL_FUNC(Color3fv);
634	pVtxFmt->Color4f = VBOX_GL_FUNC(Color4f);
635	pVtxFmt->Color4fv = VBOX_GL_FUNC(Color4fv);
636	pVtxFmt->EdgeFlag = VBOX_GL_FUNC(EdgeFlag);
637	pVtxFmt->End = VBOX_GL_FUNC(End);
638	pVtxFmt->EvalCoord1f = VBOX_GL_FUNC(EvalCoord1f);
639	pVtxFmt->EvalCoord1fv = VBOX_GL_FUNC(EvalCoord1fv);
640	pVtxFmt->EvalCoord2f = VBOX_GL_FUNC(EvalCoord2f);
641	pVtxFmt->EvalCoord2fv = VBOX_GL_FUNC(EvalCoord2fv);
642	pVtxFmt->EvalPoint1 = VBOX_GL_FUNC(EvalPoint1);
643	pVtxFmt->EvalPoint2 = VBOX_GL_FUNC(EvalPoint2);
644	pVtxFmt->FogCoordfEXT = VBOX_GL_FUNC(FogCoordfEXT);
645	pVtxFmt->FogCoordfvEXT = VBOX_GL_FUNC(FogCoordfvEXT);
646	pVtxFmt->Indexf = VBOX_GL_FUNC(Indexf);
647	pVtxFmt->Indexfv = VBOX_GL_FUNC(Indexfv);
648	pVtxFmt->Materialfv = VBOX_GL_FUNC(Materialfv);
649	pVtxFmt->MultiTexCoord1fARB = VBOX_GL_FUNC(MultiTexCoord1fARB);
650	pVtxFmt->MultiTexCoord1fvARB = VBOX_GL_FUNC(MultiTexCoord1fvARB);
651	pVtxFmt->MultiTexCoord2fARB = VBOX_GL_FUNC(MultiTexCoord2fARB);
652	pVtxFmt->MultiTexCoord2fvARB = VBOX_GL_FUNC(MultiTexCoord2fvARB);
653	pVtxFmt->MultiTexCoord3fARB = VBOX_GL_FUNC(MultiTexCoord3fARB);
654	pVtxFmt->MultiTexCoord3fvARB = VBOX_GL_FUNC(MultiTexCoord3fvARB);
655	pVtxFmt->MultiTexCoord4fARB = VBOX_GL_FUNC(MultiTexCoord4fARB);
656	pVtxFmt->MultiTexCoord4fvARB = VBOX_GL_FUNC(MultiTexCoord4fvARB);
657	pVtxFmt->Normal3f = VBOX_GL_FUNC(Normal3f);
658	pVtxFmt->Normal3fv = VBOX_GL_FUNC(Normal3fv);
659	pVtxFmt->SecondaryColor3fEXT = VBOX_GL_FUNC(SecondaryColor3fEXT);
660	pVtxFmt->SecondaryColor3fvEXT = VBOX_GL_FUNC(SecondaryColor3fvEXT);
661	pVtxFmt->TexCoord1f = VBOX_GL_FUNC(TexCoord1f);
662	pVtxFmt->TexCoord1fv = VBOX_GL_FUNC(TexCoord1fv);
663	pVtxFmt->TexCoord2f = VBOX_GL_FUNC(TexCoord2f);
664	pVtxFmt->TexCoord2fv = VBOX_GL_FUNC(TexCoord2fv);
665	pVtxFmt->TexCoord3f = VBOX_GL_FUNC(TexCoord3f);
666	pVtxFmt->TexCoord3fv = VBOX_GL_FUNC(TexCoord3fv);
667	pVtxFmt->TexCoord4f = VBOX_GL_FUNC(TexCoord4f);
668	pVtxFmt->TexCoord4fv = VBOX_GL_FUNC(TexCoord4fv);
669	pVtxFmt->Vertex2f = VBOX_GL_FUNC(Vertex2f);
670	pVtxFmt->Vertex2fv = VBOX_GL_FUNC(Vertex2fv);
671	pVtxFmt->Vertex3f = VBOX_GL_FUNC(Vertex3f);
672	pVtxFmt->Vertex3fv = VBOX_GL_FUNC(Vertex3fv);
673	pVtxFmt->Vertex4f = VBOX_GL_FUNC(Vertex4f);
674	pVtxFmt->Vertex4fv = VBOX_GL_FUNC(Vertex4fv);
675	pVtxFmt->VertexAttrib1fNV = VBOX_GL_FUNC(VertexAttrib1fARB);
676	pVtxFmt->VertexAttrib1fvNV = VBOX_GL_FUNC(VertexAttrib1fvARB);
677	pVtxFmt->VertexAttrib2fNV = VBOX_GL_FUNC(VertexAttrib2fARB);
678	pVtxFmt->VertexAttrib2fvNV = VBOX_GL_FUNC(VertexAttrib2fvARB);
679	pVtxFmt->VertexAttrib3fNV = VBOX_GL_FUNC(VertexAttrib3fARB);
680	pVtxFmt->VertexAttrib3fvNV = VBOX_GL_FUNC(VertexAttrib3fvARB);
681	pVtxFmt->VertexAttrib4fNV = VBOX_GL_FUNC(VertexAttrib4fARB);
682	pVtxFmt->VertexAttrib4fvNV = VBOX_GL_FUNC(VertexAttrib4fvARB);
683	pVtxFmt->VertexAttrib1fARB = VBOX_GL_FUNC(VertexAttrib1fARB);
684	pVtxFmt->VertexAttrib1fvARB = VBOX_GL_FUNC(VertexAttrib1fvARB);
685	pVtxFmt->VertexAttrib2fARB = VBOX_GL_FUNC(VertexAttrib2fARB);
686	pVtxFmt->VertexAttrib2fvARB = VBOX_GL_FUNC(VertexAttrib2fvARB);
687	pVtxFmt->VertexAttrib3fARB = VBOX_GL_FUNC(VertexAttrib3fARB);
688	pVtxFmt->VertexAttrib3fvARB = VBOX_GL_FUNC(VertexAttrib3fvARB);
689	pVtxFmt->VertexAttrib4fARB = VBOX_GL_FUNC(VertexAttrib4fARB);
690	pVtxFmt->VertexAttrib4fvARB = VBOX_GL_FUNC(VertexAttrib4fvARB);
691
692	pVtxFmt->EvalMesh1 = VBOX_GL_FUNC(EvalMesh1);
693	pVtxFmt->EvalMesh2 = VBOX_GL_FUNC(EvalMesh2);
694	pVtxFmt->Rectf = VBOX_GL_FUNC(Rectf);
695
696	pVtxFmt->DrawArrays = VBOX_GL_FUNC(DrawArrays);
697	pVtxFmt->DrawElements = VBOX_GL_FUNC(DrawElements);
698	pVtxFmt->DrawRangeElements = VBOX_GL_FUNC(DrawRangeElements);
699	}
700	#undef VBOX_GL_FUNC
701
702	static void
703	vboxdriExtSetTexOffset(__DRIcontext *pDRICtx, GLint texname,
704	unsigned long long offset, GLint depth, GLuint pitch)
705	{
706	}
707
708
709	static void
710	vboxdriExtSetTexBuffer(__DRIcontext pDRICtx, GLint target, __DRIdrawable dPriv)
711	{
712	}
713
714	/** @todo not sure we need it from start*/
715	static const __DRItexOffsetExtension vboxdriTexOffsetExtension = {
716	{ __DRI_TEX_OFFSET },
717	vboxdriExtSetTexOffset,
718	};
719
720	/* This DRI extension is required to support EXT_texture_from_pixmap,
721	* which in turn is required by compiz.
722	*/
723	static const __DRItexBufferExtension vboxdriTexBufferExtension = {
724	{ __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
725	vboxdriExtSetTexBuffer,
726	};
727
728	/* List of DRI extensions supported by VBox DRI driver */
729	static const __DRIextension *vboxdriExtensions[] = {
730	&vboxdriTexOffsetExtension.base,
731	&vboxdriTexBufferExtension.base,
732	NULL
733	};
734
735	static __GLcontextModes *vboxdriFillInModes(unsigned pixel_bits,
736	unsigned depth_bits,
737	unsigned stencil_bits,
738	GLboolean have_back_buffer)
739	{
740	unsigned deep = (depth_bits > 17);
741
742	/* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy
743	* enough to add support. Basically, if a context is created with an
744	* fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping
745	* will never be used.
746	*/
747
748	static const GLenum db_modes[2] = { GLX_NONE, GLX_SWAP_UNDEFINED_OML };
749	uint8_t depth_bits_array[4];
750	uint8_t stencil_bits_array[4];
751	if(deep) {
752	depth_bits_array[0] = 0;
753	depth_bits_array[1] = 24;
754	stencil_bits_array[0] = 0;
755	stencil_bits_array[1] = 8;
756	} else {
757	depth_bits_array[0] = depth_bits;
758	depth_bits_array[1] = 0;
759	depth_bits_array[2] = depth_bits;
760	depth_bits_array[3] = 0;
761	stencil_bits_array[0] = 0;
762	stencil_bits_array[1] = 0;
763	stencil_bits_array[2] = 8;
764	stencil_bits_array[3] = 8;
765	}
766
767	return driCreateConfigs(
768	deep ? GL_RGBA : GL_RGB,
769	deep ? GL_UNSIGNED_INT_8_8_8_8 : GL_UNSIGNED_SHORT_5_6_5,
770	depth_bits_array,
771	stencil_bits_array,
772	deep ? 2 : 4,
773	db_modes, 2);
774	}
775
776	/**
777	* This is the driver specific part of the createNewScreen entry point.
778	* Called when using legacy DRI.
779	*
780	* return the __GLcontextModes supported by this driver
781	*/
782	static const __DRIconfig *vboxdriInitScreen(__DRIscreenPrivate psp)
783	{
784	static const __DRIversion ddx_expected = { 1, 1, 0 };
785	static const __DRIversion dri_expected = { 4, 0, 0 };
786	static const __DRIversion drm_expected = { 1, 0, 0 };
787	//PVBoxDRI = (PVBoxDRI) psp->pDevPrivate;
788
789	/* Initialise our call table in chromium. */
790	if (!stubInit())
791	{
792	crDebug("vboxdriInitScreen: stubInit failed");
793	return NULL;
794	}
795
796	if ( ! driCheckDriDdxDrmVersions2( "tdfx",
797	&psp->dri_version, & dri_expected,
798	&psp->ddx_version, & ddx_expected,
799	&psp->drm_version, & drm_expected ) )
800	return NULL;
801
802	/* Calling driInitExtensions here, with a NULL context pointer,
803	* does not actually enable the extensions. It just makes sure
804	* that all the dispatch offsets for all the extensions that
805	* might be enables are known. This is needed because the
806	* dispatch offsets need to be known when _mesa_context_create is
807	* called, but we can't enable the extensions until we have a
808	* context pointer.
809	*
810	* Hello chicken. Hello egg. How are you two today?
811	*/
812	vboxdriInitExtensions(NULL);
813
814	/** @todo check size of DRIRec (passed from X.Org driver), allocate private
815	* structure if necessary, parse options if necessary, map VRAM if
816	* necessary. */
817	psp->extensions = vboxdriExtensions;
818
819	/* Initialise VtxFmt call table. */
820	vboxdriInitTnlVtxFmt(&vboxdriTnlVtxFmt);
821
822	/return (const __DRIconfig *)
823	vboxdriFillInModes(psp, dri_priv->cpp * 8,
824	(dri_priv->cpp == 2) ? 16 : 24,
825	(dri_priv->cpp == 2) ? 0 : 8, 1);*/
826
827	/** @todo This should depend on what the host can do, not the guest.
828	* However, we will probably want to discover that in the X.Org driver,
829	* not here. */
830	return (const __DRIconfig **) vboxdriFillInModes(psp, 24, 24, 8, 1);
831	}
832
833	static void
834	vboxdriDestroyScreen(__DRIscreenPrivate * sPriv)
835	{
836	crDebug("vboxdriDestroyScreen");
837	#if 0 /* From the tdfx driver */
838	/* free all option information */
839	driDestroyOptionInfo (&sPriv->private->optionCache);
840	FREE(sPriv->private);
841	sPriv->private = NULL;
842	#endif
843	}
844
845	static GLboolean
846	vboxdriCreateContext(const __GLcontextModes * mesaVis,
847	__DRIcontextPrivate * driContextPriv,
848	void *sharedContextPrivate)
849	{
850	//__DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
851	struct dd_function_table functions;
852	GLcontext ctx, shareCtx;
853
854	#if 0 /* We shouldn't need this sort of thing. */
855	XVisualInfo *vis;
856	vis->visual->visualid;
857	context->dpy = dpy;
858	context->visual = vis;
859
860	GLXContext vboxctx = glXCreateContext(dpy, mesaVis->visualID, GL_TRUE);
861	#endif
862	/* We should be allocating a private context structure, where we will
863	* remember the Mesa context (ctx) among other things. The TDFX driver
864	* also saves importand information in driContextPriv in there - is this
865	* not always available to us? */
866	//driContextPriv->driverPrivate = vboxctx;
867
868	/* Initialise the default driver functions then plug in our vbox ones,
869	* which will actually replace most of the defaults. */
870	/** @todo we should also pass some information from the visual back to the
871	* host. */
872	_mesa_init_driver_functions(&functions);
873	vboxdriInitFuncs(&functions);
874
875	/* Allocate context information for Mesa. */
876	if (sharedContextPrivate)
877	shareCtx = ((tdfxContextPtr) sharedContextPrivate)->glCtx;
878	else
879	shareCtx = NULL;
880	/** @todo save ctx, or be more confident that we can don't need to. */
881	ctx = _mesa_create_context(mesaVis, shareCtx, &functions,
882	driContextPriv->driverPrivate);
883	if (!ctx)
884	{
885	crDebug("vboxdriCreateContext: _mesa_create_context failed");
886	return GL_FALSE;
887	}
888
889	/* The TDFX driver parses its configuration files here, via
890	* driParseConfigFiles. We will probably get any information via guest
891	* properties. */
892
893	/* Set various context configuration. We take these values from the
894	* TDFX driver. */
895	/** @r=Leonid, stub.spu->dispatch_table.GetIntegerv(GL_MAX_TEXTURE_UNITS_ARB,&value) etc.
896	* Those would be cached where possible, see include/state/cr_limits.h, VBoxOGLgen/packspu_get.c
897	* Note, that ctx->Const.MaxTextureImageUnits is not related to GL_MAX_TEXTURE_UNITS_ARB,
898	* use GL_MAX_TEXTURE_IMAGE_UNITS_ARB instead.
899	* Also, those could fail if we haven't made ctx in our stub yet.
900	*/
901	ctx->Const.MaxTextureLevels = 9;
902	ctx->Const.MaxTextureUnits = 1;
903	ctx->Const.MaxTextureImageUnits = ctx->Const.MaxTextureUnits;
904	ctx->Const.MaxTextureCoordUnits = ctx->Const.MaxTextureUnits;
905
906	/* No wide points.
907	*/
908	ctx->Const.MinPointSize = 1.0;
909	ctx->Const.MinPointSizeAA = 1.0;
910	ctx->Const.MaxPointSize = 1.0;
911	ctx->Const.MaxPointSizeAA = 1.0;
912
913	/* Disable wide lines as we can't antialias them correctly in
914	* hardware.
915	*/
916	/** @note That applies to the TDFX, not to us, but as I don't yet know
917	* what to use instead I am leaving the values for now. */
918	ctx->Const.MinLineWidth = 1.0;
919	ctx->Const.MinLineWidthAA = 1.0;
920	ctx->Const.MaxLineWidth = 1.0;
921	ctx->Const.MaxLineWidthAA = 1.0;
922	ctx->Const.LineWidthGranularity = 1.0;
923
924	/* Initialize the software rasterizer and helper modules - again, TDFX */
925	_swrast_CreateContext( ctx );
926	_vbo_CreateContext( ctx );
927	_tnl_CreateContext( ctx );
928	_swsetup_CreateContext( ctx );
929
930	/* Install the customized pipeline, TDFX */
931	_tnl_destroy_pipeline( ctx );
932	_tnl_install_pipeline( ctx, tdfx_pipeline );
933
934	/* Configure swrast and T&L to match hardware characteristics, TDFX */
935	_swrast_allow_pixel_fog( ctx, GL_TRUE );
936	_swrast_allow_vertex_fog( ctx, GL_FALSE );
937	_tnl_allow_pixel_fog( ctx, GL_TRUE );
938	_tnl_allow_vertex_fog( ctx, GL_FALSE );
939	/ctx->DriverCtx = ;/
940
941	/* This was not in the TDFX driver. */
942	_mesa_install_exec_vtxfmt(ctx, &vboxdriTnlVtxFmt);
943
944	vboxdriInitExtensions(ctx);
945
946	return GL_TRUE;
947	}
948
949
950	static void
951	vboxdriDestroyContext(__DRIcontextPrivate *driContextPriv)
952	{
953	// glXDestroyContext(driContextPriv->driverPrivate);
954	//_mesa_destroy_context ?
955	}
956
957	/**
958	* This is called when we need to set up GL rendering to a new X window.
959	*/
960	static GLboolean
961	vboxdriCreateBuffer(__DRIscreenPrivate * driScrnPriv,
962	__DRIdrawablePrivate * driDrawPriv,
963	const __GLcontextModes * mesaVis, GLboolean isPixmap)
964	{
965	return GL_FALSE;
966	}
967
968	static void
969	vboxdriDestroyBuffer(__DRIdrawablePrivate * driDrawPriv)
970	{
971	}
972
973	static void
974	vboxdriSwapBuffers(__DRIdrawablePrivate * dPriv)
975	{
976	}
977
978
979	GLboolean
980	vboxdriMakeCurrent(__DRIcontextPrivate * driContextPriv,
981	__DRIdrawablePrivate * driDrawPriv,
982	__DRIdrawablePrivate * driReadPriv)
983	{
984	return GL_FALSE;
985	}
986
987	GLboolean
988	vboxdriUnbindContext(__DRIcontextPrivate * driContextPriv)
989	{
990	return GL_TRUE;
991	}
992
993
994	/* This structure is used by dri_util from mesa, don't rename it! */
995	DECLEXPORT(const struct __DriverAPIRec) driDriverAPI = {
996	.InitScreen = vboxdriInitScreen,
997	.DestroyScreen = vboxdriDestroyScreen,
998	.CreateContext = vboxdriCreateContext,
999	.DestroyContext = vboxdriDestroyContext,
1000	.CreateBuffer = vboxdriCreateBuffer,
1001	.DestroyBuffer = vboxdriDestroyBuffer,
1002	.SwapBuffers = vboxdriSwapBuffers,
1003	.MakeCurrent = vboxdriMakeCurrent,
1004	.UnbindContext = vboxdriUnbindContext,
1005	.GetSwapInfo = NULL,
1006	.WaitForMSC = NULL,
1007	.WaitForSBC = NULL,
1008	.SwapBuffersMSC = NULL,
1009	.CopySubBuffer = NULL,
1010	.GetDrawableMSC = NULL,
1011	.InitScreen2 = NULL
1012	};

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