DevVGA-SVGA3d-ogl.cpp@ 76255

Last change on this file since 76255 was 76255, checked in by vboxsync, 6 years ago
DevVGA-SVGA3d: Use PDMDevHlpVMSetError and VERR_VGA_GL_SYMBOL_NOT_FOUND to report errors loading open gl symbol resolving errors. Tested on windows. Left todo (mainly to myself) about better libGL.so/opengl32.dll/OpenGL.dylib loading error reporting, since that'll show up as failure to resolve 'glAlphaFunc' now.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 252.4 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 76255 2018-12-16 18:47:05Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef VMSVGA3D_DYNAMIC_LOAD
67	# define OGLGETPROCADDRESS glLdrGetProcAddress
68	#else
69	#ifdef RT_OS_WINDOWS
70	# define OGLGETPROCADDRESS MyWinGetProcAddress
71	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
72	{
73	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
74	PROC p = wglGetProcAddress(pszSymbol);
75	if (RT_VALID_PTR(p))
76	return p;
77	return 0;
78	}
79	#elif defined(RT_OS_DARWIN)
80	# include <dlfcn.h>
81	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
82	/** Resolves an OpenGL symbol. */
83	static void MyNSGLGetProcAddress(const char pszSymbol)
84	{
85	/* Another copy in shaderapi.c. */
86	static void *s_pvImage = NULL;
87	if (s_pvImage == NULL)
88	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
89	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
90	}
91
92	#else
93	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
94	#endif
95	#endif
96
97	/* Invert y-coordinate for OpenGL's bottom left origin. */
98	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
99	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
100
101	/**
102	* Macro for doing something and then checking for errors during initialization.
103	* Uses AssertLogRelMsg.
104	*/
105	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
106	do \
107	{ \
108	a_Expr; \
109	GLenum iGlError = glGetError(); \
110	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
111	} while (0)
112
113	/**
114	* Macro for doing something and then checking for errors during initialization,
115	* doing the same in the other context when enabled.
116	*
117	* This will try both profiles in dual profile builds. Caller must be in the
118	* default context.
119	*
120	* Uses AssertLogRelMsg to indicate trouble.
121	*/
122	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
123	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
124	do \
125	{ \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError = glGetError(); \
129	if (iGlError != GL_NO_ERROR) \
130	{ \
131	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
132	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
133	a_Expr; \
134	GLenum iGlError2 = glGetError(); \
135	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
136	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
137	} \
138	} while (0)
139	#else
140	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
141	#endif
142
143
144	/*********************************************************************************************************************************
145	* Global Variables *
146	*********************************************************************************************************************************/
147	/* Define the default light parameters as specified by MSDN. */
148	/** @todo move out; fetched from Wine */
149	const SVGA3dLightData vmsvga3d_default_light =
150	{
151	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
152	false, /* inWorldSpace */
153	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
154	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
156	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
157	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
158	0.0f, /* range */
159	0.0f, /* falloff */
160	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
161	0.0f, /* theta */
162	0.0f /* phi */
163	};
164
165
166	/*********************************************************************************************************************************
167	* Internal Functions *
168	*********************************************************************************************************************************/
169	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
170	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
171
172	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
173	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
174
175
176	/**
177	* Checks if the given OpenGL extension is supported.
178	*
179	* @returns true if supported, false if not.
180	* @param pState The VMSVGA3d state.
181	* @param rsMinGLVersion The OpenGL version that introduced this feature
182	* into the core.
183	* @param pszWantedExtension The name of the OpenGL extension we want padded
184	* with one space at each end.
185	* @remarks Init time only.
186	*/
187	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
188	{
189	RT_NOREF(rsMinGLVersion);
190	/* check padding. */
191	Assert(pszWantedExtension[0] == ' ');
192	Assert(pszWantedExtension[1] != ' ');
193	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
194
195	/* Look it up. */
196	bool fRet = false;
197	if (strstr(pState->pszExtensions, pszWantedExtension))
198	fRet = true;
199
200	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
201	#ifdef RT_OS_DARWIN
202	AssertMsg( rsMinGLVersion == 0.0
203	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
204	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
205	("%s actual:%d min:%d fRet=%d\n",
206	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
207	#else
208	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
209	("%s actual:%d min:%d fRet=%d\n",
210	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
211	#endif
212	return fRet;
213	}
214
215
216	/**
217	* Outputs GL_EXTENSIONS list to the release log.
218	*/
219	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
220	{
221	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
222	bool fBuffered = RTLogRelSetBuffering(true);
223
224	/*
225	* Determin the column widths first.
226	*/
227	size_t acchWidths[4] = { 1, 1, 1, 1 };
228	uint32_t i;
229	const char *psz = pszExtensions;
230	for (i = 0; ; i++)
231	{
232	while (*psz == ' ')
233	psz++;
234	if (!*psz)
235	break;
236
237	const char *pszEnd = strchr(psz, ' ');
238	AssertBreak(pszEnd);
239	size_t cch = pszEnd - psz;
240
241	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
242	if (acchWidths[iColumn] < cch)
243	acchWidths[iColumn] = cch;
244
245	psz = pszEnd;
246	}
247
248	/*
249	* Output it.
250	*/
251	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
252	psz = pszExtensions;
253	for (i = 0; ; i++)
254	{
255	while (*psz == ' ')
256	psz++;
257	if (!*psz)
258	break;
259
260	const char *pszEnd = strchr(psz, ' ');
261	AssertBreak(pszEnd);
262	size_t cch = pszEnd - psz;
263
264	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
265	if (iColumn == 0)
266	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
267	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
268	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
269	else
270	LogRel((" %.*s", cch, psz));
271
272	psz = pszEnd;
273	}
274
275	RTLogRelSetBuffering(fBuffered);
276	LogRel(("\n"));
277	}
278
279	/**
280	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
281	* @a ppszExtensions.
282	*
283	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
284	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
285	* @param fGLProfileVersion The OpenGL profile version.
286	*/
287	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
288	{
289	int rc;
290	*ppszExtensions = NULL;
291
292	/*
293	* Try the old glGetString interface first.
294	*/
295	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
296	if (pszExtensions)
297	{
298	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
299	AssertLogRelRCReturn(rc, rc);
300	}
301	else
302	{
303	/*
304	* The new interface where each extension string is retrieved separately.
305	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
306	* the above GL_EXTENSIONS error lingers on darwin. sucks.
307	*/
308	#ifndef GL_NUM_EXTENSIONS
309	# define GL_NUM_EXTENSIONS 0x821D
310	#endif
311	GLint cExtensions = 1024;
312	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
313	Assert(cExtensions != 1024);
314
315	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
316	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
317
318	rc = RTStrAAppend(ppszExtensions, " ");
319	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
320	{
321	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
322	if (pszExt)
323	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
324	}
325	AssertRCReturn(rc, rc);
326	}
327
328	#if 1
329	/*
330	* Add extensions promoted into the core OpenGL profile.
331	*/
332	static const struct
333	{
334	float fGLVersion;
335	const char *pszzExtensions;
336	} s_aPromotedExtensions[] =
337	{
338	{
339	1.1f,
340	" GL_EXT_vertex_array \0"
341	" GL_EXT_polygon_offset \0"
342	" GL_EXT_blend_logic_op \0"
343	" GL_EXT_texture \0"
344	" GL_EXT_copy_texture \0"
345	" GL_EXT_subtexture \0"
346	" GL_EXT_texture_object \0"
347	" GL_ARB_framebuffer_object \0"
348	" GL_ARB_map_buffer_range \0"
349	" GL_ARB_vertex_array_object \0"
350	"\0"
351	},
352	{
353	1.2f,
354	" EXT_texture3D \0"
355	" EXT_bgra \0"
356	" EXT_packed_pixels \0"
357	" EXT_rescale_normal \0"
358	" EXT_separate_specular_color \0"
359	" SGIS_texture_edge_clamp \0"
360	" SGIS_texture_lod \0"
361	" EXT_draw_range_elements \0"
362	"\0"
363	},
364	{
365	1.3f,
366	" GL_ARB_texture_compression \0"
367	" GL_ARB_texture_cube_map \0"
368	" GL_ARB_multisample \0"
369	" GL_ARB_multitexture \0"
370	" GL_ARB_texture_env_add \0"
371	" GL_ARB_texture_env_combine \0"
372	" GL_ARB_texture_env_dot3 \0"
373	" GL_ARB_texture_border_clamp \0"
374	" GL_ARB_transpose_matrix \0"
375	"\0"
376	},
377	{
378	1.5f,
379	" GL_SGIS_generate_mipmap \0"
380	/" GL_NV_blend_equare \0"/
381	" GL_ARB_depth_texture \0"
382	" GL_ARB_shadow \0"
383	" GL_EXT_fog_coord \0"
384	" GL_EXT_multi_draw_arrays \0"
385	" GL_ARB_point_parameters \0"
386	" GL_EXT_secondary_color \0"
387	" GL_EXT_blend_func_separate \0"
388	" GL_EXT_stencil_wrap \0"
389	" GL_ARB_texture_env_crossbar \0"
390	" GL_EXT_texture_lod_bias \0"
391	" GL_ARB_texture_mirrored_repeat \0"
392	" GL_ARB_window_pos \0"
393	"\0"
394	},
395	{
396	1.6f,
397	" GL_ARB_vertex_buffer_object \0"
398	" GL_ARB_occlusion_query \0"
399	" GL_EXT_shadow_funcs \0"
400	},
401	{
402	2.0f,
403	" GL_ARB_shader_objects \0" /??/
404	" GL_ARB_vertex_shader \0" /??/
405	" GL_ARB_fragment_shader \0" /??/
406	" GL_ARB_shading_language_100 \0" /??/
407	" GL_ARB_draw_buffers \0"
408	" GL_ARB_texture_non_power_of_two \0"
409	" GL_ARB_point_sprite \0"
410	" GL_ATI_separate_stencil \0"
411	" GL_EXT_stencil_two_side \0"
412	"\0"
413	},
414	{
415	2.1f,
416	" GL_ARB_pixel_buffer_object \0"
417	" GL_EXT_texture_sRGB \0"
418	"\0"
419	},
420	{
421	3.0f,
422	" GL_ARB_framebuffer_object \0"
423	" GL_ARB_map_buffer_range \0"
424	" GL_ARB_vertex_array_object \0"
425	"\0"
426	},
427	{
428	3.1f,
429	" GL_ARB_copy_buffer \0"
430	" GL_ARB_uniform_buffer_object \0"
431	"\0"
432	},
433	{
434	3.2f,
435	" GL_ARB_vertex_array_bgra \0"
436	" GL_ARB_draw_elements_base_vertex \0"
437	" GL_ARB_fragment_coord_conventions \0"
438	" GL_ARB_provoking_vertex \0"
439	" GL_ARB_seamless_cube_map \0"
440	" GL_ARB_texture_multisample \0"
441	" GL_ARB_depth_clamp \0"
442	" GL_ARB_sync \0"
443	" GL_ARB_geometry_shader4 \0" /??/
444	"\0"
445	},
446	{
447	3.3f,
448	" GL_ARB_blend_func_extended \0"
449	" GL_ARB_sampler_objects \0"
450	" GL_ARB_explicit_attrib_location \0"
451	" GL_ARB_occlusion_query2 \0"
452	" GL_ARB_shader_bit_encoding \0"
453	" GL_ARB_texture_rgb10_a2ui \0"
454	" GL_ARB_texture_swizzle \0"
455	" GL_ARB_timer_query \0"
456	" GL_ARB_vertex_type_2_10_10_10_rev \0"
457	"\0"
458	},
459	{
460	4.0f,
461	" GL_ARB_texture_query_lod \0"
462	" GL_ARB_draw_indirect \0"
463	" GL_ARB_gpu_shader5 \0"
464	" GL_ARB_gpu_shader_fp64 \0"
465	" GL_ARB_shader_subroutine \0"
466	" GL_ARB_tessellation_shader \0"
467	" GL_ARB_texture_buffer_object_rgb32 \0"
468	" GL_ARB_texture_cube_map_array \0"
469	" GL_ARB_texture_gather \0"
470	" GL_ARB_transform_feedback2 \0"
471	" GL_ARB_transform_feedback3 \0"
472	"\0"
473	},
474	{
475	4.1f,
476	" GL_ARB_ES2_compatibility \0"
477	" GL_ARB_get_program_binary \0"
478	" GL_ARB_separate_shader_objects \0"
479	" GL_ARB_shader_precision \0"
480	" GL_ARB_vertex_attrib_64bit \0"
481	" GL_ARB_viewport_array \0"
482	"\0"
483	}
484	};
485
486	uint32_t cPromoted = 0;
487	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
488	{
489	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
490	while (*pszExt)
491	{
492	# ifdef VBOX_STRICT
493	size_t cchExt = strlen(pszExt);
494	Assert(cchExt > 3);
495	Assert(pszExt[0] == ' ');
496	Assert(pszExt[1] != ' ');
497	Assert(pszExt[cchExt - 2] != ' ');
498	Assert(pszExt[cchExt - 1] == ' ');
499	# endif
500
501	if (strstr(*ppszExtensions, pszExt) == NULL)
502	{
503	if (cPromoted++ == 0)
504	{
505	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
506	AssertRCReturn(rc, rc);
507	}
508
509	rc = RTStrAAppend(ppszExtensions, pszExt);
510	AssertRCReturn(rc, rc);
511	}
512
513	pszExt = strchr(pszExt, '\0') + 1;
514	}
515	}
516	#endif
517
518	return VINF_SUCCESS;
519	}
520
521	/** Check whether this is an Intel GL driver.
522	*
523	* @returns true if this seems to be some Intel graphics.
524	*/
525	static bool vmsvga3dIsVendorIntel(void)
526	{
527	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
528	}
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
532	*/
533	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
534	{
535	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
538	#else
539	NOREF(pThis);
540	NOREF(fOtherProfile);
541	#endif
542	}
543
544
545	/**
546	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
547	*/
548	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
549	char *pszBuf, size_t cbBuf, bool fOtherProfile)
550	{
551	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
552	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
553	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
554	while (*pszCur == ' ')
555	pszCur++;
556	if (!*pszCur)
557	return false;
558
559	const char *pszEnd = strchr(pszCur, ' ');
560	AssertReturn(pszEnd, false);
561	size_t cch = pszEnd - pszCur;
562	if (cch < cbBuf)
563	{
564	memcpy(pszBuf, pszCur, cch);
565	pszBuf[cch] = '\0';
566	}
567	else if (cbBuf > 0)
568	{
569	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
570	pszBuf[cbBuf - 1] = '\0';
571	}
572
573	ppvEnumCtx = (void )pszEnd;
574	return true;
575	}
576
577
578	/**
579	* Initializes the VMSVGA3D state during VGA device construction.
580	*
581	* Failure are generally not fatal, 3D support will just be disabled.
582	*
583	* @returns VBox status code.
584	* @param pThis The VGA device state where svga.p3dState will be modified.
585	*/
586	int vmsvga3dInit(PVGASTATE pThis)
587	{
588	int rc;
589
590	AssertCompile(GL_TRUE == 1);
591	AssertCompile(GL_FALSE == 0);
592
593	#ifdef VMSVGA3D_DYNAMIC_LOAD
594	rc = glLdrInit(pThis->pDevInsR3);
595	if (RT_FAILURE(rc))
596	{
597	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
598	return rc;
599	}
600	#endif
601
602	/*
603	* Load and resolve imports from the external shared libraries.
604	*/
605	RTERRINFOSTATIC ErrInfo;
606	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
607	if (RT_FAILURE(rc))
608	{
609	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
610	return rc;
611	}
612	#ifdef RT_OS_DARWIN
613	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
614	if (RT_FAILURE(rc))
615	{
616	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
617	return rc;
618	}
619	#endif
620
621	/*
622	* Allocate the state.
623	*/
624	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
625	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
626
627	#ifdef RT_OS_WINDOWS
628	/* Create event semaphore and async IO thread. */
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	rc = RTSemEventCreate(&pState->WndRequestSem);
631	if (RT_SUCCESS(rc))
632	{
633	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
634	"VMSVGA3DWND");
635	if (RT_SUCCESS(rc))
636	return VINF_SUCCESS;
637
638	/* bail out. */
639	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
640	RTSemEventDestroy(pState->WndRequestSem);
641	}
642	else
643	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
644	RTMemFree(pThis->svga.p3dState);
645	pThis->svga.p3dState = NULL;
646	return rc;
647	#else
648	return VINF_SUCCESS;
649	#endif
650	}
651
652	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
653	{
654	/* A strict approach to get a proc address as recommended by Khronos:
655	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
656	* - "If the function is an extension, we need to check to see if the extension is supported."
657	*/
658
659	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
660	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
661	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
662	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
663	} while(0)
664
665	/* Get an optional function address. LogRel on failure. */
666	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
667	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
668	if (!pState->ext.ProcName) \
669	{ \
670	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
671	AssertFailed(); \
672	} \
673	} while(0)
674
675	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
676	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
677	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
678	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
679	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
680	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
681	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
682	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
683	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
684	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
685	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
686	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
687	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
688	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
689	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
690	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
691	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
692	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
693	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
694	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
695	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
696	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
697	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
698	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
699	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
700	/* glGetProgramivARB determines implementation limits for the program
701	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
702	* It differs from glGetProgramiv, which returns a parameter from a program object.
703	*/
704	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
705	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
706	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
707	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
708	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
709	#endif
710	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
711	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
712	#endif
713
714	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
715	if ( pState->rsGLVersion >= 3.0f
716	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
717	{
718	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
719	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
720	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
721	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
722	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
723	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
724	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
725	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
726	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
727	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
728	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
729	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
730	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
731	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
732	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
733	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
734	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
735	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
736	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
737	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
738	}
739
740	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
741	if (pState->rsGLVersion >= 3.1f)
742	{
743	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
744	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
745	}
746	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
747	{
748	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
749	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
750	}
751	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
752	{
753	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
754	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
755	}
756
757	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
758	if ( pState->rsGLVersion >= 3.2f
759	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
760	{
761	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
762	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
763	}
764
765	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
766	if ( pState->rsGLVersion >= 3.2f
767	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
768	{
769	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
770	}
771
772	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
773	if (pState->rsGLVersion >= 3.3f)
774	{
775	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
776	}
777	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
778	{
779	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
780	}
781
782	#undef GLGETPROCOPT_
783	#undef GLGETPROC_
784
785	return VINF_SUCCESS;
786	}
787
788
789	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
790	int vmsvga3dPowerOn(PVGASTATE pThis)
791	{
792	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
793	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
794	PVMSVGA3DCONTEXT pContext;
795	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
796	PVMSVGA3DCONTEXT pOtherCtx;
797	#endif
798	int rc;
799
800	if (pState->rsGLVersion != 0.0)
801	return VINF_SUCCESS; /* already initialized (load state) */
802
803	/*
804	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
805	*/
806	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
807	AssertRCReturn(rc, rc);
808
809	pContext = pState->papContexts[1];
810	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
811
812	#ifdef VMSVGA3D_DYNAMIC_LOAD
813	/* Context is set and it is possible now to resolve extension functions. */
814	rc = glLdrGetExtFunctions(pThis->pDevInsR3);
815	if (RT_FAILURE(rc))
816	{
817	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
818	return rc;
819	}
820	#endif
821
822	LogRel(("VMSVGA3d: OpenGL version: %s\n"
823	"VMSVGA3d: OpenGL Vendor: %s\n"
824	"VMSVGA3d: OpenGL Renderer: %s\n"
825	"VMSVGA3d: OpenGL shader language version: %s\n",
826	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
827	glGetString(GL_SHADING_LANGUAGE_VERSION)));
828
829	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
830	AssertRCReturn(rc, rc);
831	vmsvga3dLogRelExtensions("", pState->pszExtensions);
832
833	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
834
835
836	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
837	/*
838	* Get the extension list for the alternative profile so we can better
839	* figure out the shader model and stuff.
840	*/
841	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
842	AssertLogRelRCReturn(rc, rc);
843	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
844
845	pOtherCtx = pState->papContexts[2];
846	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
847
848	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
849	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
850	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
851	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
852	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
853	glGetString(GL_SHADING_LANGUAGE_VERSION)));
854
855	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
856	AssertRCReturn(rc, rc);
857	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
858
859	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
860
861	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
862	#else
863	pState->pszOtherExtensions = (char *)"";
864	pState->rsOtherGLVersion = pState->rsGLVersion;
865	#endif
866
867	/*
868	* Resolve GL function pointers and store them in pState->ext.
869	*/
870	rc = vmsvga3dLoadGLFunctions(pState);
871	if (RT_FAILURE(rc))
872	{
873	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
874	return rc;
875	}
876
877	/*
878	* Initialize the capabilities with sensible defaults.
879	*/
880	pState->caps.maxActiveLights = 1;
881	pState->caps.maxTextures = 1;
882	pState->caps.maxClipDistances = 4;
883	pState->caps.maxColorAttachments = 1;
884	pState->caps.maxRectangleTextureSize = 2048;
885	pState->caps.maxTextureAnisotropy = 2;
886	pState->caps.maxVertexShaderInstructions = 1024;
887	pState->caps.maxFragmentShaderInstructions = 1024;
888	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
889	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
890	pState->caps.flPointSize[0] = 1;
891	pState->caps.flPointSize[1] = 1;
892
893	/*
894	* Query capabilities
895	*/
896	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
897	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
898	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
899	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
900	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
901	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
902	#else
903	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
904	#endif
905	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
906	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
907	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
908	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
909
910	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
911	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
912	&pState->caps.maxFragmentShaderTemps));
913	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
914	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
915	&pState->caps.maxFragmentShaderInstructions));
916	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
917	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
918	&pState->caps.maxVertexShaderTemps));
919	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
920	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
921	&pState->caps.maxVertexShaderInstructions));
922
923	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
924
925	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
926	* ARB Assembly Language
927	* These are done through testing the presence of extensions. You should test them in this order:
928	* GL_NV_gpu_program4: SM 4.0 or better.
929	* GL_NV_vertex_program3: SM 3.0 or better.
930	* GL_ARB_fragment_program: SM 2.0 or better.
931	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
932	*
933	*/
934	/** @todo distinguish between vertex and pixel shaders??? */
935	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
936	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
937	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
938	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
939	#else
940	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
941	#endif
942	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
943	if (v >= 3.30f)
944	{
945	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
946	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
947	}
948	else
949	if (v >= 1.20f)
950	{
951	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
952	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
953	}
954	else
955	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
956	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
957	{
958	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
959	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
960	}
961	else
962	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
963	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
964	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
965	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
966	)
967	{
968	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
969	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
970	}
971	else
972	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
973	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
974	{
975	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
976	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
977	}
978	else
979	{
980	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
981	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
982	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
983	}
984
985	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
986	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
987	{
988	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
989	}
990
991	/*
992	* Tweak capabilities.
993	*/
994	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
995	if ( pState->caps.maxVertexShaderTemps < 32
996	&& vmsvga3dIsVendorIntel())
997	pState->caps.maxVertexShaderTemps = 32;
998
999	#if 0
1000	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1001	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1002	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1003	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1004	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1005	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1006	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1007	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1008	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1009	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1010	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1011	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1012	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1013	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1014	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1015	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1016	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1017	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1018	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1019	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1020	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1021	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1022	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1023	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1024	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1025	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1026	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1027	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1028	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1029	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1030	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1031	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1032	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1033	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1034	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1035	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1036	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1037	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1038	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1039	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1040	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1041	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1042	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1043	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1044	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1045	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1046	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1047	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1048	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1049	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1050	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1051	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1052	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1053	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1054	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1055	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1056	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1057	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1058	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1059	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1060	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1061	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1062	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1063	#endif
1064
1065	LogRel(("VMSVGA3d: Capabilities:\n"));
1066	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1067	pState->caps.maxActiveLights, pState->caps.maxTextures));
1068	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1069	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1070	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1071	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1072	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1073	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1074	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1075	pState->caps.maxFragmentShaderTemps,
1076	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1077	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1078	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1079	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1080
1081
1082	/* Initialize the shader library. */
1083	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1084	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1085	rc = ShaderInitLib(&pState->ShaderIf);
1086	AssertRC(rc);
1087
1088	/* Cleanup */
1089	rc = vmsvga3dContextDestroy(pThis, 1);
1090	AssertRC(rc);
1091	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1092	rc = vmsvga3dContextDestroy(pThis, 2);
1093	AssertRC(rc);
1094	#endif
1095
1096	if ( pState->rsGLVersion < 3.0
1097	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1098	{
1099	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1100	return VERR_NOT_IMPLEMENTED;
1101	}
1102
1103	return VINF_SUCCESS;
1104	}
1105
1106	int vmsvga3dReset(PVGASTATE pThis)
1107	{
1108	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1109	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1110
1111	/* Destroy all leftover surfaces. */
1112	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1113	{
1114	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1115	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1116	}
1117
1118	/* Destroy all leftover contexts. */
1119	for (uint32_t i = 0; i < pState->cContexts; i++)
1120	{
1121	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1122	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1123	}
1124
1125	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1126	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1127
1128	return VINF_SUCCESS;
1129	}
1130
1131	int vmsvga3dTerminate(PVGASTATE pThis)
1132	{
1133	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1134	AssertReturn(pState, VERR_WRONG_ORDER);
1135	int rc;
1136
1137	rc = vmsvga3dReset(pThis);
1138	AssertRCReturn(rc, rc);
1139
1140	/* Terminate the shader library. */
1141	rc = ShaderDestroyLib();
1142	AssertRC(rc);
1143
1144	#ifdef RT_OS_WINDOWS
1145	/* Terminate the window creation thread. */
1146	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1147	AssertRCReturn(rc, rc);
1148
1149	RTSemEventDestroy(pState->WndRequestSem);
1150	#elif defined(RT_OS_DARWIN)
1151
1152	#elif defined(RT_OS_LINUX)
1153	/* signal to the thread that it is supposed to exit */
1154	pState->bTerminate = true;
1155	/* wait for it to terminate */
1156	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1157	AssertRC(rc);
1158	XCloseDisplay(pState->display);
1159	#endif
1160
1161	RTStrFree(pState->pszExtensions);
1162	pState->pszExtensions = NULL;
1163	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1164	RTStrFree(pState->pszOtherExtensions);
1165	#endif
1166	pState->pszOtherExtensions = NULL;
1167
1168	return VINF_SUCCESS;
1169	}
1170
1171
1172	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1173	{
1174	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1175	* redraw it. */
1176
1177	#ifdef RT_OS_DARWIN
1178	RT_NOREF(pOldViewport);
1179	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1180	if ( pState
1181	&& idScreen == 0
1182	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1183	{
1184	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1185	}
1186	#else
1187	RT_NOREF(pThis, idScreen, pOldViewport);
1188	#endif
1189	}
1190
1191
1192	/**
1193	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1194	* given surface format capability.
1195	*
1196	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1197	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1198	*
1199	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1200	* of implicit guest expectations:
1201	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1202	*/
1203	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1204	{
1205	uint32_t result = 0;
1206
1207	/** @todo missing:
1208	*
1209	* SVGA3DFORMAT_OP_PIXELSIZE
1210	*/
1211
1212	switch (idx3dCaps)
1213	{
1214	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1215	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1216	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1217	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1218	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1219	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1220	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1221	break;
1222
1223	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1224	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1225	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1226	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1227	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1228	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1229	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1230	break;
1231	}
1232
1233	/** @todo check hardware caps! */
1234	switch (idx3dCaps)
1235	{
1236	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1237	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1238	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1239	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1240	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1241	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1242	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1243	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1244	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1245	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1246	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1247	result \|= SVGA3DFORMAT_OP_TEXTURE
1248	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1249	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1250	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1251	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1252	\| SVGA3DFORMAT_OP_CUBETEXTURE
1253	\| SVGA3DFORMAT_OP_SRGBREAD
1254	\| SVGA3DFORMAT_OP_SRGBWRITE;
1255	break;
1256
1257	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1258	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1259	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1260	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1261	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1262	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1263	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1264	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1265	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1266	break;
1267
1268	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1269	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1270	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1271	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1272	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1273	result \|= SVGA3DFORMAT_OP_TEXTURE
1274	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1275	\| SVGA3DFORMAT_OP_CUBETEXTURE
1276	\| SVGA3DFORMAT_OP_SRGBREAD;
1277	break;
1278
1279	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1280	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1281	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1282	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1283	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1284	break;
1285
1286	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1287	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1288	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1289	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1290	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1291	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1292	result \|= SVGA3DFORMAT_OP_TEXTURE
1293	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1294	\| SVGA3DFORMAT_OP_CUBETEXTURE
1295	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1296	break;
1297
1298	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1299	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1300	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1301	result \|= SVGA3DFORMAT_OP_TEXTURE
1302	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1303	\| SVGA3DFORMAT_OP_CUBETEXTURE
1304	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1305	break;
1306
1307	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1308	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1309	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1310	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1311	break;
1312	}
1313	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1314
1315	return result;
1316	}
1317
1318	#if 0 /* unused */
1319	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1320	{
1321	RT_NOREF(pState3D, idx3dCaps);
1322
1323	/** @todo test this somehow */
1324	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1325
1326	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1327	return result;
1328	}
1329	#endif
1330
1331
1332	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1333	{
1334	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1335	AssertReturn(pState, VERR_NO_MEMORY);
1336	int rc = VINF_SUCCESS;
1337
1338	*pu32Val = 0;
1339
1340	/*
1341	* The capabilities access by current (2015-03-01) linux sources (gallium,
1342	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1343	* aren't access.
1344	*/
1345
1346	switch (idx3dCaps)
1347	{
1348	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1349	case SVGA3D_DEVCAP_3D:
1350	pu32Val = 1; / boolean? */
1351	break;
1352
1353	case SVGA3D_DEVCAP_MAX_LIGHTS:
1354	*pu32Val = pState->caps.maxActiveLights;
1355	break;
1356
1357	case SVGA3D_DEVCAP_MAX_TEXTURES:
1358	*pu32Val = pState->caps.maxTextures;
1359	break;
1360
1361	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1362	*pu32Val = pState->caps.maxClipDistances;
1363	break;
1364
1365	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1366	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1367	*pu32Val = pState->caps.vertexShaderVersion;
1368	break;
1369
1370	case SVGA3D_DEVCAP_VERTEX_SHADER:
1371	/* boolean? */
1372	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1373	break;
1374
1375	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1376	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1377	*pu32Val = pState->caps.fragmentShaderVersion;
1378	break;
1379
1380	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1381	/* boolean? */
1382	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1383	break;
1384
1385	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1386	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1387	/* Must be obsolete by now; surface format caps specify the same thing. */
1388	rc = VERR_INVALID_PARAMETER;
1389	break;
1390
1391	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1392	break;
1393
1394	/*
1395	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1396	* return TRUE. Even on physical hardware that does not support
1397	* these formats natively, the SVGA3D device will provide an emulation
1398	* which should be invisible to the guest OS.
1399	*/
1400	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1401	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1402	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1403	*pu32Val = 1;
1404	break;
1405
1406	case SVGA3D_DEVCAP_QUERY_TYPES:
1407	break;
1408
1409	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1410	break;
1411
1412	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1413	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1414	AssertCompile(sizeof(uint32_t) == sizeof(float));
1415	(float )pu32Val = pState->caps.flPointSize[1];
1416	break;
1417
1418	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1419	/** @todo ?? */
1420	rc = VERR_INVALID_PARAMETER;
1421	break;
1422
1423	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1424	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1425	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1426	*pu32Val = pState->caps.maxRectangleTextureSize;
1427	break;
1428
1429	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1430	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1431	//*pu32Val = pCaps->MaxVolumeExtent;
1432	*pu32Val = 256;
1433	break;
1434
1435	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1436	pu32Val = 32768; / hardcoded in Wine */
1437	break;
1438
1439	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1440	//*pu32Val = pCaps->MaxTextureAspectRatio;
1441	break;
1442
1443	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1444	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1445	*pu32Val = pState->caps.maxTextureAnisotropy;
1446	break;
1447
1448	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1449	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1450	pu32Val = 0xFFFFF; / hardcoded in Wine */
1451	break;
1452
1453	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1454	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1455	*pu32Val = pState->caps.maxVertexShaderInstructions;
1456	break;
1457
1458	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1459	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1460	break;
1461
1462	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1463	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1464	*pu32Val = pState->caps.maxVertexShaderTemps;
1465	break;
1466
1467	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1468	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1469	*pu32Val = pState->caps.maxFragmentShaderTemps;
1470	break;
1471
1472	case SVGA3D_DEVCAP_TEXTURE_OPS:
1473	break;
1474
1475	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1476	break;
1477
1478	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1479	break;
1480
1481	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1482	break;
1483
1484	case SVGA3D_DEVCAP_SUPERSAMPLE:
1485	break;
1486
1487	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1488	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1489	break;
1490
1491	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1492	break;
1493
1494	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1495	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1496	*pu32Val = pState->caps.maxColorAttachments;
1497	break;
1498
1499	/*
1500	* This is the maximum number of SVGA context IDs that the guest
1501	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1502	*/
1503	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1504	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1505	break;
1506
1507	/*
1508	* This is the maximum number of SVGA surface IDs that the guest
1509	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1510	*/
1511	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1512	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1513	break;
1514
1515	#if 0 /* Appeared more recently, not yet implemented. */
1516	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1517	case SVGA3D_DEVCAP_LINE_AA:
1518	break;
1519	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1520	case SVGA3D_DEVCAP_LINE_STIPPLE:
1521	break;
1522	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1523	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1524	break;
1525	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1526	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1527	break;
1528	#endif
1529
1530	/*
1531	* Supported surface formats.
1532	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1533	*/
1534	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1535	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1536	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1537	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1538	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1539	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1540	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1541	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1542	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1543	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1544	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1545	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1546	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1547	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1548	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1549	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1550	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1551	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1552	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1553	break;
1554
1555	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1556	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1557	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1558	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1559	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1560	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1561	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1562	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1563	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1564	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1565	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1566	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1567	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1568	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1569	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1570	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1571	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1572	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1573	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1574	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1575	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1576	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1577	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1578	break;
1579
1580	/* Linux: Not referenced in current sources. */
1581	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1582	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1583	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1584	rc = VERR_INVALID_PARAMETER;
1585	*pu32Val = 0;
1586	break;
1587
1588	default:
1589	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1590	rc = VERR_INVALID_PARAMETER;
1591	break;
1592	}
1593
1594	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1595	return rc;
1596	}
1597
1598	/**
1599	* Convert SVGA format value to its OpenGL equivalent
1600	*
1601	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1602	* help from wined3dformat_from_d3dformat().
1603	*/
1604	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1605	{
1606	#if 0
1607	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1608	#else
1609	#define AssertTestFmt(f) do {} while(0)
1610	#endif
1611	switch (format)
1612	{
1613	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1614	pSurface->internalFormatGL = GL_RGB8;
1615	pSurface->formatGL = GL_BGRA;
1616	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1617	break;
1618	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1619	pSurface->internalFormatGL = GL_RGBA8;
1620	pSurface->formatGL = GL_BGRA;
1621	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1622	break;
1623	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1624	pSurface->internalFormatGL = GL_RGB5;
1625	pSurface->formatGL = GL_RGB;
1626	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1627	AssertTestFmt(SVGA3D_R5G6B5);
1628	break;
1629	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1630	pSurface->internalFormatGL = GL_RGB5;
1631	pSurface->formatGL = GL_BGRA;
1632	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1633	AssertTestFmt(SVGA3D_X1R5G5B5);
1634	break;
1635	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1636	pSurface->internalFormatGL = GL_RGB5_A1;
1637	pSurface->formatGL = GL_BGRA;
1638	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1639	AssertTestFmt(SVGA3D_A1R5G5B5);
1640	break;
1641	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1642	pSurface->internalFormatGL = GL_RGBA4;
1643	pSurface->formatGL = GL_BGRA;
1644	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1645	AssertTestFmt(SVGA3D_A4R4G4B4);
1646	break;
1647
1648	case SVGA3D_R8G8B8A8_UNORM:
1649	pSurface->internalFormatGL = GL_RGBA8;
1650	pSurface->formatGL = GL_RGBA;
1651	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1652	break;
1653
1654	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1655	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1656	pSurface->formatGL = GL_DEPTH_COMPONENT;
1657	pSurface->typeGL = GL_UNSIGNED_INT;
1658	break;
1659	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1660	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1661	pSurface->formatGL = GL_DEPTH_COMPONENT;
1662	pSurface->typeGL = GL_UNSIGNED_SHORT;
1663	AssertTestFmt(SVGA3D_Z_D16);
1664	break;
1665	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1666	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1667	pSurface->formatGL = GL_DEPTH_STENCIL;
1668	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1669	break;
1670	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1671	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1672	pSurface->formatGL = GL_DEPTH_STENCIL;
1673	pSurface->typeGL = GL_UNSIGNED_SHORT;
1674	/** @todo Wine sources hints at no hw support for this, so test this one! */
1675	AssertTestFmt(SVGA3D_Z_D15S1);
1676	break;
1677	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1678	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1679	pSurface->formatGL = GL_DEPTH_COMPONENT;
1680	pSurface->typeGL = GL_UNSIGNED_INT;
1681	AssertTestFmt(SVGA3D_Z_D24X8);
1682	break;
1683
1684	/* Advanced D3D9 depth formats. */
1685	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1686	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1687	pSurface->formatGL = GL_DEPTH_COMPONENT;
1688	pSurface->typeGL = GL_HALF_FLOAT;
1689	break;
1690
1691	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1692	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1693	pSurface->formatGL = GL_DEPTH_COMPONENT;
1694	pSurface->typeGL = GL_FLOAT; /* ??? */
1695	break;
1696
1697	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1698	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1699	pSurface->formatGL = GL_DEPTH_STENCIL;
1700	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1701	break;
1702
1703	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1704	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1705	pSurface->formatGL = GL_RGBA; /* not used */
1706	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1707	break;
1708
1709	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1710	/* "DXT2 and DXT3 are the same from an API perspective." */
1711	RT_FALL_THRU();
1712	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1713	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1714	pSurface->formatGL = GL_RGBA; /* not used */
1715	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1716	break;
1717
1718	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1719	/* "DXT4 and DXT5 are the same from an API perspective." */
1720	RT_FALL_THRU();
1721	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1722	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1723	pSurface->formatGL = GL_RGBA; /* not used */
1724	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1725	break;
1726
1727	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1728	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1729	pSurface->formatGL = GL_LUMINANCE;
1730	pSurface->typeGL = GL_UNSIGNED_BYTE;
1731	break;
1732
1733	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1734	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1735	pSurface->formatGL = GL_LUMINANCE;
1736	pSurface->typeGL = GL_UNSIGNED_SHORT;
1737	break;
1738
1739	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1740	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1741	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1742	pSurface->typeGL = GL_UNSIGNED_BYTE;
1743	break;
1744
1745	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1746	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1747	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1748	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1749	break;
1750
1751	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1752	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1753	pSurface->formatGL = GL_ALPHA;
1754	pSurface->typeGL = GL_UNSIGNED_BYTE;
1755	break;
1756
1757	#if 0
1758
1759	/* Bump-map formats */
1760	case SVGA3D_BUMPU8V8:
1761	return D3DFMT_V8U8;
1762	case SVGA3D_BUMPL6V5U5:
1763	return D3DFMT_L6V5U5;
1764	case SVGA3D_BUMPX8L8V8U8:
1765	return D3DFMT_X8L8V8U8;
1766	case SVGA3D_BUMPL8V8U8:
1767	/* No corresponding D3D9 equivalent. */
1768	AssertFailedReturn(D3DFMT_UNKNOWN);
1769	/* signed bump-map formats */
1770	case SVGA3D_V8U8:
1771	return D3DFMT_V8U8;
1772	case SVGA3D_Q8W8V8U8:
1773	return D3DFMT_Q8W8V8U8;
1774	case SVGA3D_CxV8U8:
1775	return D3DFMT_CxV8U8;
1776	/* mixed bump-map formats */
1777	case SVGA3D_X8L8V8U8:
1778	return D3DFMT_X8L8V8U8;
1779	case SVGA3D_A2W10V10U10:
1780	return D3DFMT_A2W10V10U10;
1781	#endif
1782
1783	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1784	pSurface->internalFormatGL = GL_RGBA16F;
1785	pSurface->formatGL = GL_RGBA;
1786	#if 0 /* bird: wine uses half float, sounds correct to me... */
1787	pSurface->typeGL = GL_FLOAT;
1788	#else
1789	pSurface->typeGL = GL_HALF_FLOAT;
1790	AssertTestFmt(SVGA3D_ARGB_S10E5);
1791	#endif
1792	break;
1793
1794	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1795	pSurface->internalFormatGL = GL_RGBA32F;
1796	pSurface->formatGL = GL_RGBA;
1797	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1798	break;
1799
1800	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1801	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1802	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1803	pSurface->formatGL = GL_RGBA;
1804	#else
1805	pSurface->formatGL = GL_BGRA;
1806	#endif
1807	pSurface->typeGL = GL_UNSIGNED_INT;
1808	AssertTestFmt(SVGA3D_A2R10G10B10);
1809	break;
1810
1811
1812	/* Single- and dual-component floating point formats */
1813	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1814	pSurface->internalFormatGL = GL_R16F;
1815	pSurface->formatGL = GL_RED;
1816	#if 0 /* bird: wine uses half float, sounds correct to me... */
1817	pSurface->typeGL = GL_FLOAT;
1818	#else
1819	pSurface->typeGL = GL_HALF_FLOAT;
1820	AssertTestFmt(SVGA3D_R_S10E5);
1821	#endif
1822	break;
1823	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1824	pSurface->internalFormatGL = GL_R32F;
1825	pSurface->formatGL = GL_RED;
1826	pSurface->typeGL = GL_FLOAT;
1827	break;
1828	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1829	pSurface->internalFormatGL = GL_RG16F;
1830	pSurface->formatGL = GL_RG;
1831	#if 0 /* bird: wine uses half float, sounds correct to me... */
1832	pSurface->typeGL = GL_FLOAT;
1833	#else
1834	pSurface->typeGL = GL_HALF_FLOAT;
1835	AssertTestFmt(SVGA3D_RG_S10E5);
1836	#endif
1837	break;
1838	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1839	pSurface->internalFormatGL = GL_RG32F;
1840	pSurface->formatGL = GL_RG;
1841	pSurface->typeGL = GL_FLOAT;
1842	break;
1843
1844	/*
1845	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1846	* the most efficient format to use when creating new surfaces
1847	* expressly for index or vertex data.
1848	*/
1849	case SVGA3D_BUFFER:
1850	pSurface->internalFormatGL = -1;
1851	pSurface->formatGL = -1;
1852	pSurface->typeGL = -1;
1853	break;
1854
1855	#if 0
1856	return D3DFMT_UNKNOWN;
1857
1858	case SVGA3D_V16U16:
1859	return D3DFMT_V16U16;
1860	#endif
1861
1862	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1863	pSurface->internalFormatGL = GL_RG16;
1864	pSurface->formatGL = GL_RG;
1865	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1866	pSurface->typeGL = GL_UNSIGNED_INT;
1867	#else
1868	pSurface->typeGL = GL_UNSIGNED_SHORT;
1869	AssertTestFmt(SVGA3D_G16R16);
1870	#endif
1871	break;
1872
1873	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1874	pSurface->internalFormatGL = GL_RGBA16;
1875	pSurface->formatGL = GL_RGBA;
1876	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1877	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1878	#else
1879	pSurface->typeGL = GL_UNSIGNED_SHORT;
1880	AssertTestFmt(SVGA3D_A16B16G16R16);
1881	#endif
1882	break;
1883
1884	case SVGA3D_R8G8B8A8_SNORM:
1885	pSurface->internalFormatGL = GL_RGB8;
1886	pSurface->formatGL = GL_BGRA;
1887	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1888	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1889	break;
1890	case SVGA3D_R16G16_UNORM:
1891	pSurface->internalFormatGL = GL_RG16;
1892	pSurface->formatGL = GL_RG;
1893	pSurface->typeGL = GL_UNSIGNED_SHORT;
1894	AssertTestFmt(SVGA3D_R16G16_UNORM);
1895	break;
1896
1897	#if 0
1898	/* Packed Video formats */
1899	case SVGA3D_UYVY:
1900	return D3DFMT_UYVY;
1901	case SVGA3D_YUY2:
1902	return D3DFMT_YUY2;
1903
1904	/* Planar video formats */
1905	case SVGA3D_NV12:
1906	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1907
1908	/* Video format with alpha */
1909	case SVGA3D_AYUV:
1910	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1911
1912	case SVGA3D_BC4_UNORM:
1913	case SVGA3D_BC5_UNORM:
1914	/* Unknown; only in DX10 & 11 */
1915	break;
1916	#endif
1917	default:
1918	AssertMsgFailed(("Unsupported format %d\n", format));
1919	break;
1920	}
1921	#undef AssertTestFmt
1922	}
1923
1924
1925	#if 0
1926	/**
1927	* Convert SVGA multi sample count value to its D3D equivalent
1928	*/
1929	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1930	{
1931	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1932	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1933
1934	if (multisampleCount > 16)
1935	return D3DMULTISAMPLE_NONE;
1936
1937	/** @todo exact same mapping as d3d? */
1938	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1939	}
1940	#endif
1941
1942	/**
1943	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1944	*
1945	* @param pState The VMSVGA3d state.
1946	* @param pSurface The surface being destroyed.
1947	*/
1948	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1949	{
1950	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1951	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1952
1953	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1954	{
1955	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1956	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1957	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1958	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1959	{
1960	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1961	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1962	}
1963	break;
1964
1965	case SVGA3D_SURFACE_CUBEMAP:
1966	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
1967	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1968	/* Cubemap is a texture. */
1969	case SVGA3D_SURFACE_HINT_TEXTURE:
1970	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1971	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1972	{
1973	glDeleteTextures(1, &pSurface->oglId.texture);
1974	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1975	}
1976	break;
1977
1978	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1979	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1980	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1981	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1982	{
1983	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1984	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1985	}
1986	break;
1987
1988	default:
1989	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1990	break;
1991	}
1992	}
1993
1994
1995	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1996	{
1997	for (uint32_t i = 0; i < cCopyBoxes; i++)
1998	{
1999	SVGA3dBox destBox, srcBox;
2000
2001	srcBox.x = pBox[i].srcx;
2002	srcBox.y = pBox[i].srcy;
2003	srcBox.z = pBox[i].srcz;
2004	srcBox.w = pBox[i].w;
2005	srcBox.h = pBox[i].h;
2006	srcBox.d = pBox[i].d;
2007
2008	destBox.x = pBox[i].x;
2009	destBox.y = pBox[i].y;
2010	destBox.z = pBox[i].z;
2011	destBox.w = pBox[i].w;
2012	destBox.h = pBox[i].h;
2013	destBox.d = pBox[i].d;
2014
2015	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
2016	AssertRCReturn(rc, rc);
2017	}
2018	return VINF_SUCCESS;
2019	}
2020
2021
2022	/**
2023	* Save texture unpacking parameters and loads those appropriate for the given
2024	* surface.
2025	*
2026	* @param pState The VMSVGA3D state structure.
2027	* @param pContext The active context.
2028	* @param pSurface The surface.
2029	* @param pSave Where to save stuff.
2030	*/
2031	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2032	PVMSVGAPACKPARAMS pSave)
2033	{
2034	RT_NOREF(pState);
2035
2036	/*
2037	* Save (ignore errors, setting the defaults we want and avoids restore).
2038	*/
2039	pSave->iAlignment = 1;
2040	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2041	pSave->cxRow = 0;
2042	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2043
2044	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2045	pSave->cyImage = 0;
2046	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2047	Assert(pSave->cyImage == 0);
2048
2049	pSave->fSwapBytes = GL_FALSE;
2050	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2051	Assert(pSave->fSwapBytes == GL_FALSE);
2052
2053	pSave->fLsbFirst = GL_FALSE;
2054	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2055	Assert(pSave->fLsbFirst == GL_FALSE);
2056
2057	pSave->cSkipRows = 0;
2058	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2059	Assert(pSave->cSkipRows == 0);
2060
2061	pSave->cSkipPixels = 0;
2062	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2063	Assert(pSave->cSkipPixels == 0);
2064
2065	pSave->cSkipImages = 0;
2066	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2067	Assert(pSave->cSkipImages == 0);
2068
2069	VMSVGA3D_CLEAR_GL_ERRORS();
2070	#endif
2071
2072	/*
2073	* Setup unpack.
2074	*
2075	* Note! We use 1 as alignment here because we currently don't do any
2076	* aligning of line pitches anywhere.
2077	*/
2078	NOREF(pSurface);
2079	if (pSave->iAlignment != 1)
2080	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2081	if (pSave->cxRow != 0)
2082	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2083	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2084	if (pSave->cyImage != 0)
2085	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2086	if (pSave->fSwapBytes != 0)
2087	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2088	if (pSave->fLsbFirst != 0)
2089	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2090	if (pSave->cSkipRows != 0)
2091	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2092	if (pSave->cSkipPixels != 0)
2093	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2094	if (pSave->cSkipImages != 0)
2095	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2096	#endif
2097	}
2098
2099
2100	/**
2101	* Restores texture unpacking parameters.
2102	*
2103	* @param pState The VMSVGA3D state structure.
2104	* @param pContext The active context.
2105	* @param pSurface The surface.
2106	* @param pSave Where stuff was saved.
2107	*/
2108	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2109	PCVMSVGAPACKPARAMS pSave)
2110	{
2111	RT_NOREF(pState, pSurface);
2112
2113	if (pSave->iAlignment != 1)
2114	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2115	if (pSave->cxRow != 0)
2116	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2117	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2118	if (pSave->cyImage != 0)
2119	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2120	if (pSave->fSwapBytes != 0)
2121	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2122	if (pSave->fLsbFirst != 0)
2123	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2124	if (pSave->cSkipRows != 0)
2125	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2126	if (pSave->cSkipPixels != 0)
2127	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2128	if (pSave->cSkipImages != 0)
2129	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2130	#endif
2131	}
2132
2133	/**
2134	* Create D3D/OpenGL texture object for the specified surface.
2135	*
2136	* Surfaces are created when needed.
2137	*
2138	* @param pState The VMSVGA3d state.
2139	* @param pContext The context.
2140	* @param idAssociatedContext Probably the same as pContext->id.
2141	* @param pSurface The surface to create the texture for.
2142	*/
2143	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2144	PVMSVGA3DSURFACE pSurface)
2145	{
2146	RT_NOREF(idAssociatedContext);
2147
2148	LogFunc(("sid=%x\n", pSurface->id));
2149
2150	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2151
2152	/* Fugure out what kind of texture we are creating. */
2153	GLenum binding;
2154	GLenum target;
2155	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2156	{
2157	Assert(pSurface->cFaces == 6);
2158
2159	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2160	target = GL_TEXTURE_CUBE_MAP;
2161	}
2162	else
2163	{
2164	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2165	{
2166	binding = GL_TEXTURE_BINDING_3D;
2167	target = GL_TEXTURE_3D;
2168	}
2169	else
2170	{
2171	Assert(pSurface->cFaces == 1);
2172
2173	binding = GL_TEXTURE_BINDING_2D;
2174	target = GL_TEXTURE_2D;
2175	}
2176	}
2177
2178	/* All textures are created in the SharedCtx. */
2179	uint32_t idPrevCtx = pState->idActiveContext;
2180	pContext = &pState->SharedCtx;
2181	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2182
2183	glGenTextures(1, &pSurface->oglId.texture);
2184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2185
2186	GLint activeTexture = 0;
2187	glGetIntegerv(binding, &activeTexture);
2188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2189
2190	/* Must bind texture to the current context in order to change it. */
2191	glBindTexture(target, pSurface->oglId.texture);
2192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2193
2194	/* Set the unpacking parameters. */
2195	VMSVGAPACKPARAMS SavedParams;
2196	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2197
2198	/** @todo Set the mip map generation filter settings. */
2199
2200	/* Set the mipmap base and max level parameters. */
2201	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2203	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2205
2206	if (pSurface->fDirty)
2207	LogFunc(("sync dirty texture\n"));
2208
2209	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2210	if (target == GL_TEXTURE_3D)
2211	{
2212	for (uint32_t i = 0; i < numMipLevels; ++i)
2213	{
2214	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2215	* exposing random host memory to the guest and helps a with the fedora 21 surface
2216	* corruption issues (launchpad, background, search field, login).
2217	*/
2218	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2219
2220	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2221	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2222
2223	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2224	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2225	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2226	{
2227	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2228	i,
2229	pSurface->internalFormatGL,
2230	pMipLevel->mipmapSize.width,
2231	pMipLevel->mipmapSize.height,
2232	pMipLevel->mipmapSize.depth,
2233	0,
2234	pMipLevel->cbSurface,
2235	pMipLevel->pSurfaceData);
2236	}
2237	else
2238	{
2239	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2240	i,
2241	pSurface->internalFormatGL,
2242	pMipLevel->mipmapSize.width,
2243	pMipLevel->mipmapSize.height,
2244	pMipLevel->mipmapSize.depth,
2245	0, /* border */
2246	pSurface->formatGL,
2247	pSurface->typeGL,
2248	pMipLevel->pSurfaceData);
2249	}
2250	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2251
2252	pMipLevel->fDirty = false;
2253	}
2254	}
2255	else if (target == GL_TEXTURE_CUBE_MAP)
2256	{
2257	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2258	{
2259	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2260
2261	for (uint32_t i = 0; i < numMipLevels; ++i)
2262	{
2263	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2264	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2265	Assert(pMipLevel->mipmapSize.depth == 1);
2266
2267	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2268	iFace, i, pMipLevel->fDirty));
2269
2270	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2271	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2272	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2273	{
2274	pState->ext.glCompressedTexImage2D(Face,
2275	i,
2276	pSurface->internalFormatGL,
2277	pMipLevel->mipmapSize.width,
2278	pMipLevel->mipmapSize.height,
2279	0,
2280	pMipLevel->cbSurface,
2281	pMipLevel->pSurfaceData);
2282	}
2283	else
2284	{
2285	glTexImage2D(Face,
2286	i,
2287	pSurface->internalFormatGL,
2288	pMipLevel->mipmapSize.width,
2289	pMipLevel->mipmapSize.height,
2290	0,
2291	pSurface->formatGL,
2292	pSurface->typeGL,
2293	pMipLevel->pSurfaceData);
2294	}
2295	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2296
2297	pMipLevel->fDirty = false;
2298	}
2299	}
2300	}
2301	else if (target == GL_TEXTURE_2D)
2302	{
2303	for (uint32_t i = 0; i < numMipLevels; ++i)
2304	{
2305	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2306	* exposing random host memory to the guest and helps a with the fedora 21 surface
2307	* corruption issues (launchpad, background, search field, login).
2308	*/
2309	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2310	Assert(pMipLevel->mipmapSize.depth == 1);
2311
2312	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2313	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2314
2315	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2316	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2317	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2318	{
2319	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2320	i,
2321	pSurface->internalFormatGL,
2322	pMipLevel->mipmapSize.width,
2323	pMipLevel->mipmapSize.height,
2324	0,
2325	pMipLevel->cbSurface,
2326	pMipLevel->pSurfaceData);
2327	}
2328	else
2329	{
2330	glTexImage2D(GL_TEXTURE_2D,
2331	i,
2332	pSurface->internalFormatGL,
2333	pMipLevel->mipmapSize.width,
2334	pMipLevel->mipmapSize.height,
2335	0,
2336	pSurface->formatGL,
2337	pSurface->typeGL,
2338	pMipLevel->pSurfaceData);
2339	}
2340	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2341
2342	pMipLevel->fDirty = false;
2343	}
2344	}
2345
2346	pSurface->fDirty = false;
2347
2348	/* Restore unpacking parameters. */
2349	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2350
2351	/* Restore the old active texture. */
2352	glBindTexture(target, activeTexture);
2353	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2354
2355	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2356	pSurface->targetGL = target;
2357	pSurface->bindingGL = binding;
2358
2359	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2360	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2361	return VINF_SUCCESS;
2362	}
2363
2364
2365	/**
2366	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2367	*
2368	* @returns VBox status code.
2369	* @param pThis The VGA device instance.
2370	* @param pState The VMSVGA3d state.
2371	* @param pDstSurface The destination host surface.
2372	* @param uDstFace The destination face (valid).
2373	* @param uDstMipmap The destination mipmap level (valid).
2374	* @param pDstBox The destination box.
2375	* @param pSrcSurface The source host surface.
2376	* @param uSrcFace The destination face (valid).
2377	* @param uSrcMipmap The source mimap level (valid).
2378	* @param pSrcBox The source box.
2379	* @param enmMode The strecht blt mode .
2380	* @param pContext The VMSVGA3d context (already current for OGL).
2381	*/
2382	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2383	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2384	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2385	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2386	{
2387	RT_NOREF(pThis);
2388
2389	/* Activate the read and draw framebuffer objects. */
2390	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2391	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2392	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2393	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2394
2395	/* Bind the source and destination objects to the right place. */
2396	GLenum textarget;
2397	if (pSrcSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2398	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2399	else
2400	textarget = GL_TEXTURE_2D;
2401	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2402	pSrcSurface->oglId.texture, uSrcMipmap);
2403	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2404
2405	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2406	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2407	else
2408	textarget = GL_TEXTURE_2D;
2409	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2410	pDstSurface->oglId.texture, uDstMipmap);
2411	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2412
2413	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2414	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2415	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2416	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2417	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2418
2419	pState->ext.glBlitFramebuffer(pSrcBox->x,
2420	pSrcBox->y,
2421	pSrcBox->x + pSrcBox->w, /* exclusive. */
2422	pSrcBox->y + pSrcBox->h,
2423	pDstBox->x,
2424	pDstBox->y,
2425	pDstBox->x + pDstBox->w, /* exclusive. */
2426	pDstBox->y + pDstBox->h,
2427	GL_COLOR_BUFFER_BIT,
2428	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2429	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2430
2431	/* Reset the frame buffer association */
2432	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2433	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2434
2435	return VINF_SUCCESS;
2436	}
2437
2438	/**
2439	* Save texture packing parameters and loads those appropriate for the given
2440	* surface.
2441	*
2442	* @param pState The VMSVGA3D state structure.
2443	* @param pContext The active context.
2444	* @param pSurface The surface.
2445	* @param pSave Where to save stuff.
2446	*/
2447	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2448	PVMSVGAPACKPARAMS pSave)
2449	{
2450	RT_NOREF(pState);
2451	/*
2452	* Save (ignore errors, setting the defaults we want and avoids restore).
2453	*/
2454	pSave->iAlignment = 1;
2455	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2456	pSave->cxRow = 0;
2457	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2458
2459	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2460	pSave->cyImage = 0;
2461	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2462	Assert(pSave->cyImage == 0);
2463
2464	pSave->fSwapBytes = GL_FALSE;
2465	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2466	Assert(pSave->fSwapBytes == GL_FALSE);
2467
2468	pSave->fLsbFirst = GL_FALSE;
2469	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2470	Assert(pSave->fLsbFirst == GL_FALSE);
2471
2472	pSave->cSkipRows = 0;
2473	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2474	Assert(pSave->cSkipRows == 0);
2475
2476	pSave->cSkipPixels = 0;
2477	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2478	Assert(pSave->cSkipPixels == 0);
2479
2480	pSave->cSkipImages = 0;
2481	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2482	Assert(pSave->cSkipImages == 0);
2483
2484	VMSVGA3D_CLEAR_GL_ERRORS();
2485	#endif
2486
2487	/*
2488	* Setup unpack.
2489	*
2490	* Note! We use 1 as alignment here because we currently don't do any
2491	* aligning of line pitches anywhere.
2492	*/
2493	NOREF(pSurface);
2494	if (pSave->iAlignment != 1)
2495	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2496	if (pSave->cxRow != 0)
2497	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2498	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2499	if (pSave->cyImage != 0)
2500	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2501	if (pSave->fSwapBytes != 0)
2502	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2503	if (pSave->fLsbFirst != 0)
2504	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2505	if (pSave->cSkipRows != 0)
2506	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2507	if (pSave->cSkipPixels != 0)
2508	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2509	if (pSave->cSkipImages != 0)
2510	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2511	#endif
2512	}
2513
2514
2515	/**
2516	* Restores texture packing parameters.
2517	*
2518	* @param pState The VMSVGA3D state structure.
2519	* @param pContext The active context.
2520	* @param pSurface The surface.
2521	* @param pSave Where stuff was saved.
2522	*/
2523	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2524	PCVMSVGAPACKPARAMS pSave)
2525	{
2526	RT_NOREF(pState, pSurface);
2527	if (pSave->iAlignment != 1)
2528	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2529	if (pSave->cxRow != 0)
2530	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2531	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2532	if (pSave->cyImage != 0)
2533	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2534	if (pSave->fSwapBytes != 0)
2535	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2536	if (pSave->fLsbFirst != 0)
2537	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2538	if (pSave->cSkipRows != 0)
2539	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2540	if (pSave->cSkipPixels != 0)
2541	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2542	if (pSave->cSkipImages != 0)
2543	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2544	#endif
2545	}
2546
2547
2548	/**
2549	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2550	*
2551	* @returns Failure status code or @a rc.
2552	* @param pThis The VGA device instance data.
2553	* @param pState The VMSVGA3d state.
2554	* @param pSurface The host surface.
2555	* @param pMipLevel Mipmap level. The caller knows it already.
2556	* @param uHostFace The host face (valid).
2557	* @param uHostMipmap The host mipmap level (valid).
2558	* @param GuestPtr The guest pointer.
2559	* @param cbGuestPitch The guest pitch.
2560	* @param transfer The transfer direction.
2561	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2562	* @param pContext The context (for OpenGL).
2563	* @param rc The current rc for all boxes.
2564	* @param iBox The current box number (for Direct 3D).
2565	*/
2566	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2567	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2568	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2569	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2570	{
2571	RT_NOREF(iBox);
2572
2573	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2574	{
2575	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2576	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2577	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2578	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2579	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2580	case SVGA3D_SURFACE_HINT_TEXTURE:
2581	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2582	{
2583	uint32_t cbSurfacePitch;
2584	uint8_t *pDoubleBuffer;
2585	uint32_t offHst;
2586
2587	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2588	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2589	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2590	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2591
2592	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2593	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2594	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2595	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2596
2597	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2598	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2599	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2600
2601	GLenum texImageTarget;
2602	if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2603	{
2604	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2605	}
2606	else
2607	{
2608	Assert(pSurface->targetGL == GL_TEXTURE_2D);
2609	texImageTarget = GL_TEXTURE_2D;
2610	}
2611
2612	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2613	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2614
2615	if (transfer == SVGA3D_READ_HOST_VRAM)
2616	{
2617	GLint activeTexture;
2618
2619	/* Must bind texture to the current context in order to read it. */
2620	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2621	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2622
2623	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2624	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2625
2626	/* Set row length and alignment of the input data. */
2627	VMSVGAPACKPARAMS SavedParams;
2628	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2629
2630	glGetTexImage(texImageTarget,
2631	uHostMipmap,
2632	pSurface->formatGL,
2633	pSurface->typeGL,
2634	pDoubleBuffer);
2635	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2636
2637	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2638
2639	/* Restore the old active texture. */
2640	glBindTexture(pSurface->targetGL, activeTexture);
2641	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2642
2643	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2644	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2645	}
2646	else
2647	{
2648	/* The buffer will contain only the copied rectangle. */
2649	offHst = 0;
2650	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2651	}
2652
2653	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2654
2655	rc = vmsvgaGMRTransfer(pThis,
2656	transfer,
2657	pDoubleBuffer,
2658	pMipLevel->cbSurface,
2659	offHst,
2660	cbSurfacePitch,
2661	GuestPtr,
2662	offGst,
2663	cbGuestPitch,
2664	cBlocksX * pSurface->cbBlock,
2665	cBlocksY);
2666	AssertRC(rc);
2667
2668	/* Update the opengl surface data. */
2669	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2670	{
2671	GLint activeTexture = 0;
2672	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2673	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2674
2675	/* Must bind texture to the current context in order to change it. */
2676	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2677	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2678
2679	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2680
2681	/* Set row length and alignment of the input data. */
2682	VMSVGAPACKPARAMS SavedParams;
2683	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2684
2685	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2686	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2687	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2688	{
2689	pState->ext.glCompressedTexSubImage2D(texImageTarget,
2690	uHostMipmap,
2691	pBox->x,
2692	pBox->y,
2693	pBox->w,
2694	pBox->h,
2695	pSurface->internalFormatGL,
2696	cbSurfacePitch * cBlocksY,
2697	pDoubleBuffer);
2698	}
2699	else
2700	{
2701	glTexSubImage2D(texImageTarget,
2702	uHostMipmap,
2703	u32HostBlockX,
2704	u32HostBlockY,
2705	cBlocksX,
2706	cBlocksY,
2707	pSurface->formatGL,
2708	pSurface->typeGL,
2709	pDoubleBuffer);
2710	}
2711	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2712
2713	/* Restore old values. */
2714	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2715
2716	/* Restore the old active texture. */
2717	glBindTexture(pSurface->targetGL, activeTexture);
2718	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2719	}
2720
2721	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2722
2723	/* Free the double buffer. */
2724	RTMemFree(pDoubleBuffer);
2725	break;
2726	}
2727
2728	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2729	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2730	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2731	{
2732	/* Buffers are uncompressed. */
2733	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2734
2735	/* Caller already clipped pBox and buffers are 1-dimensional. */
2736	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2737
2738	VMSVGA3D_CLEAR_GL_ERRORS();
2739	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2740	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2741	{
2742	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2743	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2744	if (RT_LIKELY(pbData != NULL))
2745	{
2746	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2747	GLint cbStrictBufSize;
2748	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2749	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2750	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2751	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2752	#endif
2753	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2754	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2755	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2756	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2757
2758	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2759
2760	rc = vmsvgaGMRTransfer(pThis,
2761	transfer,
2762	pbData,
2763	pMipLevel->cbSurface,
2764	offHst,
2765	pMipLevel->cbSurfacePitch,
2766	GuestPtr,
2767	pBox->srcx * pSurface->cbBlock,
2768	cbGuestPitch,
2769	pBox->w * pSurface->cbBlock,
2770	pBox->h);
2771	AssertRC(rc);
2772
2773	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2774
2775	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2776	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2777	}
2778	else
2779	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2780	}
2781	else
2782	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2783	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2785	break;
2786	}
2787
2788	default:
2789	AssertFailed();
2790	break;
2791	}
2792
2793	return rc;
2794	}
2795
2796	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2797	{
2798	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2799	PVMSVGA3DSURFACE pSurface;
2800	int rc = VINF_SUCCESS;
2801	PVMSVGA3DCONTEXT pContext;
2802	uint32_t cid;
2803	GLint activeTexture = 0;
2804
2805	AssertReturn(pState, VERR_NO_MEMORY);
2806
2807	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2808	AssertRCReturn(rc, rc);
2809
2810	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2811	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2812	pSurface->autogenFilter = filter;
2813
2814	LogFunc(("sid=%x filter=%d\n", sid, filter));
2815
2816	cid = SVGA3D_INVALID_ID;
2817	pContext = &pState->SharedCtx;
2818	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2819
2820	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2821	{
2822	/* Unknown surface type; turn it into a texture. */
2823	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2824	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2825	AssertRCReturn(rc, rc);
2826	}
2827	else
2828	{
2829	/** @todo new filter */
2830	AssertFailed();
2831	}
2832
2833	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2834	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2835
2836	/* Must bind texture to the current context in order to change it. */
2837	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2838	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2839
2840	/* Generate the mip maps. */
2841	pState->ext.glGenerateMipmap(pSurface->targetGL);
2842	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2843
2844	/* Restore the old texture. */
2845	glBindTexture(pSurface->targetGL, activeTexture);
2846	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2847
2848	return VINF_SUCCESS;
2849	}
2850
2851
2852	#ifdef RT_OS_LINUX
2853	/**
2854	* X11 event handling thread.
2855	*
2856	* @returns VINF_SUCCESS (ignored)
2857	* @param hThreadSelf thread handle
2858	* @param pvUser pointer to pState structure
2859	*/
2860	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
2861	{
2862	RT_NOREF(hThreadSelf);
2863	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
2864	while (!pState->bTerminate)
2865	{
2866	while (XPending(pState->display) > 0)
2867	{
2868	XEvent event;
2869	XNextEvent(pState->display, &event);
2870
2871	switch (event.type)
2872	{
2873	default:
2874	break;
2875	}
2876	}
2877	/* sleep for 16ms to not burn too many cycles */
2878	RTThreadSleep(16);
2879	}
2880	return VINF_SUCCESS;
2881	}
2882	#endif // RT_OS_LINUX
2883
2884
2885	/**
2886	* Create a new 3d context
2887	*
2888	* @returns VBox status code.
2889	* @param pThis VGA device instance data.
2890	* @param cid Context id
2891	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
2892	*/
2893	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
2894	{
2895	int rc;
2896	PVMSVGA3DCONTEXT pContext;
2897	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2898
2899	AssertReturn(pState, VERR_NO_MEMORY);
2900	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
2901	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
2902	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
2903	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
2904	#endif
2905
2906	Log(("vmsvga3dContextDefine id %x\n", cid));
2907
2908	if (cid == VMSVGA3D_SHARED_CTX_ID)
2909	pContext = &pState->SharedCtx;
2910	else
2911	{
2912	if (cid >= pState->cContexts)
2913	{
2914	/* Grow the array. */
2915	uint32_t cNew = RT_ALIGN(cid + 15, 16);
2916	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
2917	AssertReturn(pvNew, VERR_NO_MEMORY);
2918	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
2919	while (pState->cContexts < cNew)
2920	{
2921	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
2922	AssertReturn(pContext, VERR_NO_MEMORY);
2923	pContext->id = SVGA3D_INVALID_ID;
2924	pState->papContexts[pState->cContexts++] = pContext;
2925	}
2926	}
2927	/* If one already exists with this id, then destroy it now. */
2928	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
2929	vmsvga3dContextDestroy(pThis, cid);
2930
2931	pContext = pState->papContexts[cid];
2932	}
2933
2934	/*
2935	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
2936	*/
2937	PVMSVGA3DCONTEXT pSharedCtx = NULL;
2938	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
2939	{
2940	pSharedCtx = &pState->SharedCtx;
2941	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
2942	{
2943	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
2944	AssertLogRelRCReturn(rc, rc);
2945	}
2946	}
2947
2948	/*
2949	* Initialize the context.
2950	*/
2951	memset(pContext, 0, sizeof(*pContext));
2952	pContext->id = cid;
2953	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
2954	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
2955
2956	pContext->state.shidVertex = SVGA3D_INVALID_ID;
2957	pContext->state.shidPixel = SVGA3D_INVALID_ID;
2958	pContext->idFramebuffer = OPENGL_INVALID_ID;
2959	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
2960	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
2961
2962	rc = ShaderContextCreate(&pContext->pShaderContext);
2963	AssertRCReturn(rc, rc);
2964
2965	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
2966	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
2967
2968	#ifdef RT_OS_WINDOWS
2969	/* Create a context window with minimal 4x4 size. We will never use the swapchain
2970	* to present the rendered image. Rendered images from the guest will be copied to
2971	* the VMSVGA SCREEN object, which can be either an offscreen render target or
2972	* system memory in the guest VRAM.
2973	*/
2974	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
2975	AssertRCReturn(rc, rc);
2976
2977	pContext->hdc = GetDC(pContext->hwnd);
2978	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
2979
2980	PIXELFORMATDESCRIPTOR pfd = {
2981	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
2982	1, /* version number */
2983	PFD_DRAW_TO_WINDOW \| /* support window */
2984	PFD_SUPPORT_OPENGL, /* support OpenGL */
2985	PFD_TYPE_RGBA, /* RGBA type */
2986	24, /* 24-bit color depth */
2987	0, 0, 0, 0, 0, 0, /* color bits ignored */
2988	8, /* alpha buffer */
2989	0, /* shift bit ignored */
2990	0, /* no accumulation buffer */
2991	0, 0, 0, 0, /* accum bits ignored */
2992	16, /* set depth buffer */
2993	16, /* set stencil buffer */
2994	0, /* no auxiliary buffer */
2995	PFD_MAIN_PLANE, /* main layer */
2996	0, /* reserved */
2997	0, 0, 0 /* layer masks ignored */
2998	};
2999	int pixelFormat;
3000	BOOL ret;
3001
3002	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3003	/** @todo is this really necessary?? */
3004	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3005	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3006
3007	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3008	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3009
3010	pContext->hglrc = wglCreateContext(pContext->hdc);
3011	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3012
3013	if (pSharedCtx)
3014	{
3015	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3016	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3017	}
3018
3019	#elif defined(RT_OS_DARWIN)
3020	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3021
3022	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3023	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3024	NULL,
3025	4, 4,
3026	pShareContext, pContext->fOtherProfile);
3027
3028	#else
3029	if (pState->display == NULL)
3030	{
3031	/* get an X display and make sure we have glX 1.3 */
3032	pState->display = XOpenDisplay(0);
3033	Assert(pState->display);
3034	int glxMajor, glxMinor;
3035	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3036	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3037	/* start our X event handling thread */
3038	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3039	if (RT_FAILURE(rc))
3040	{
3041	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3042	return rc;
3043	}
3044	}
3045
3046	/* Create a small 4x4 window required for GL context. */
3047	int attrib[] =
3048	{
3049	GLX_RGBA,
3050	GLX_RED_SIZE, 1,
3051	GLX_GREEN_SIZE, 1,
3052	GLX_BLUE_SIZE, 1,
3053	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3054	GLX_DOUBLEBUFFER,
3055	None
3056	};
3057	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3058	XSetWindowAttributes swa;
3059	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3060	swa.border_pixel = 0;
3061	swa.background_pixel = 0;
3062	swa.event_mask = StructureNotifyMask;
3063	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3064	pContext->window = XCreateWindow(pState->display, XDefaultRootWindow(pState->display),
3065	0, 0, 4, 4,
3066	0, vi->depth, InputOutput,
3067	vi->visual, flags, &swa);
3068	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3069
3070	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3071
3072	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3073	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3074	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3075	#endif
3076
3077	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3078
3079	/* NULL during the first PowerOn call. */
3080	if (pState->ext.glGenFramebuffers)
3081	{
3082	/* Create a framebuffer object for this context. */
3083	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3085
3086	/* Bind the object to the framebuffer target. */
3087	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3088	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3089
3090	/* Create read and draw framebuffer objects for this context. */
3091	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3092	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3093
3094	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3095	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3096
3097	}
3098	#if 0
3099	/** @todo move to shader lib!!! */
3100	/* Clear the screen */
3101	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3102
3103	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3104	glClearIndex(0);
3105	glClearDepth(1);
3106	glClearStencil(0xffff);
3107	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3108	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3109	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3110	if (pState->ext.glProvokingVertex)
3111	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3112	/** @todo move to shader lib!!! */
3113	#endif
3114	return VINF_SUCCESS;
3115	}
3116
3117
3118	/**
3119	* Create a new 3d context
3120	*
3121	* @returns VBox status code.
3122	* @param pThis VGA device instance data.
3123	* @param cid Context id
3124	*/
3125	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3126	{
3127	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3128	}
3129
3130	/**
3131	* Destroys a 3d context.
3132	*
3133	* @returns VBox status code.
3134	* @param pThis VGA device instance data.
3135	* @param pContext The context to destroy.
3136	* @param cid Context id
3137	*/
3138	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3139	{
3140	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3141	AssertReturn(pState, VERR_NO_MEMORY);
3142	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3143	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3144	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3145
3146	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3147
3148	/* Destroy all leftover pixel shaders. */
3149	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3150	{
3151	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3152	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3153	}
3154	if (pContext->paPixelShader)
3155	RTMemFree(pContext->paPixelShader);
3156
3157	/* Destroy all leftover vertex shaders. */
3158	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3159	{
3160	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3161	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3162	}
3163	if (pContext->paVertexShader)
3164	RTMemFree(pContext->paVertexShader);
3165
3166	if (pContext->state.paVertexShaderConst)
3167	RTMemFree(pContext->state.paVertexShaderConst);
3168	if (pContext->state.paPixelShaderConst)
3169	RTMemFree(pContext->state.paPixelShaderConst);
3170
3171	if (pContext->pShaderContext)
3172	{
3173	int rc = ShaderContextDestroy(pContext->pShaderContext);
3174	AssertRC(rc);
3175	}
3176
3177	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3178	{
3179	/* Unbind the object from the framebuffer target. */
3180	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3181	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3182	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3184
3185	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3186	{
3187	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3189	}
3190	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3191	{
3192	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3194	}
3195	}
3196
3197	vmsvga3dOcclusionQueryDelete(pState, pContext);
3198
3199	#ifdef RT_OS_WINDOWS
3200	wglMakeCurrent(pContext->hdc, NULL);
3201	wglDeleteContext(pContext->hglrc);
3202	ReleaseDC(pContext->hwnd, pContext->hdc);
3203
3204	/* Destroy the window we've created. */
3205	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3206	AssertRC(rc);
3207	#elif defined(RT_OS_DARWIN)
3208	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3209	#elif defined(RT_OS_LINUX)
3210	glXMakeCurrent(pState->display, None, NULL);
3211	glXDestroyContext(pState->display, pContext->glxContext);
3212	XDestroyWindow(pState->display, pContext->window);
3213	#endif
3214
3215	memset(pContext, 0, sizeof(*pContext));
3216	pContext->id = SVGA3D_INVALID_ID;
3217
3218	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3219	return VINF_SUCCESS;
3220	}
3221
3222	/**
3223	* Destroy an existing 3d context
3224	*
3225	* @returns VBox status code.
3226	* @param pThis VGA device instance data.
3227	* @param cid Context id
3228	*/
3229	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3230	{
3231	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3232	AssertReturn(pState, VERR_WRONG_ORDER);
3233
3234	/*
3235	* Resolve the context and hand it to the common worker function.
3236	*/
3237	if ( cid < pState->cContexts
3238	&& pState->papContexts[cid]->id == cid)
3239	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3240
3241	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3242	return VINF_SUCCESS;
3243	}
3244
3245	/**
3246	* Worker for vmsvga3dChangeMode that resizes a context.
3247	*
3248	* @param pThis The VGA device instance data.
3249	* @param pState The VMSVGA3d state.
3250	* @param pContext The context.
3251	*/
3252	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3253	{
3254	#ifdef RT_OS_WINDOWS
3255	RT_NOREF3(pThis, pState, pContext);
3256	/* Do nothing. The window is not used for presenting. */
3257
3258	#elif defined(RT_OS_DARWIN)
3259	/** @todo No overlay like on Windows. */
3260	VMSVGASCREENOBJECT *pScreen = vmsvgaGetScreenObject(pThis, 0);
3261	uint32_t const uWidth = pScreen ? pScreen->cWidth : -1;
3262	uint32_t const uHeight = pScreen ? pScreen->cHeight: -1;
3263
3264	RT_NOREF(pState);
3265	vmsvga3dCocoaViewSetSize(pContext->cocoaView, uWidth, uHeight);
3266
3267	#elif defined(RT_OS_LINUX)
3268	/** @todo No overlay like on Windows. */
3269	VMSVGASCREENOBJECT *pScreen = vmsvgaGetScreenObject(pThis, 0);
3270	uint32_t const uWidth = pScreen ? pScreen->cWidth : -1;
3271	uint32_t const uHeight = pScreen ? pScreen->cHeight: -1;
3272
3273	XWindowChanges wc;
3274	wc.width = uWidth;
3275	wc.height = uHeight;
3276	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3277	#endif
3278	}
3279
3280	/* Handle resize */
3281	int vmsvga3dChangeMode(PVGASTATE pThis)
3282	{
3283	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3284	AssertReturn(pState, VERR_NO_MEMORY);
3285
3286	/* Resize the shared context too. */
3287	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3288	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3289
3290	/* Resize all active contexts. */
3291	for (uint32_t i = 0; i < pState->cContexts; i++)
3292	{
3293	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3294	if (pContext->id != SVGA3D_INVALID_ID)
3295	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3296	}
3297
3298	return VINF_SUCCESS;
3299	}
3300
3301
3302	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3303	{
3304	PVMSVGA3DCONTEXT pContext;
3305	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3306	AssertReturn(pState, VERR_NO_MEMORY);
3307	bool fModelViewChanged = false;
3308
3309	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3310
3311	if ( cid >= pState->cContexts
3312	\|\| pState->papContexts[cid]->id != cid)
3313	{
3314	Log(("vmsvga3dSetTransform invalid context id!\n"));
3315	return VERR_INVALID_PARAMETER;
3316	}
3317	pContext = pState->papContexts[cid];
3318	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3319
3320	/* Save this matrix for vm state save/restore. */
3321	pContext->state.aTransformState[type].fValid = true;
3322	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3323	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3324
3325	Log(("Matrix [%d %d %d %d]\n", (int)(matrix[0] * 10.0), (int)(matrix[1] * 10.0), (int)(matrix[2] * 10.0), (int)(matrix[3] * 10.0)));
3326	Log((" [%d %d %d %d]\n", (int)(matrix[4] * 10.0), (int)(matrix[5] * 10.0), (int)(matrix[6] * 10.0), (int)(matrix[7] * 10.0)));
3327	Log((" [%d %d %d %d]\n", (int)(matrix[8] * 10.0), (int)(matrix[9] * 10.0), (int)(matrix[10] * 10.0), (int)(matrix[11] * 10.0)));
3328	Log((" [%d %d %d %d]\n", (int)(matrix[12] * 10.0), (int)(matrix[13] * 10.0), (int)(matrix[14] * 10.0), (int)(matrix[15] * 10.0)));
3329
3330	switch (type)
3331	{
3332	case SVGA3D_TRANSFORM_VIEW:
3333	/* View * World = Model View */
3334	glMatrixMode(GL_MODELVIEW);
3335	glLoadMatrixf(matrix);
3336	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3337	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3338	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3339	fModelViewChanged = true;
3340	break;
3341
3342	case SVGA3D_TRANSFORM_PROJECTION:
3343	{
3344	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3345	AssertRCReturn(rc, rc);
3346	break;
3347	}
3348
3349	case SVGA3D_TRANSFORM_TEXTURE0:
3350	glMatrixMode(GL_TEXTURE);
3351	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3352	glLoadMatrixf(matrix);
3353	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3354	break;
3355
3356	case SVGA3D_TRANSFORM_TEXTURE1:
3357	case SVGA3D_TRANSFORM_TEXTURE2:
3358	case SVGA3D_TRANSFORM_TEXTURE3:
3359	case SVGA3D_TRANSFORM_TEXTURE4:
3360	case SVGA3D_TRANSFORM_TEXTURE5:
3361	case SVGA3D_TRANSFORM_TEXTURE6:
3362	case SVGA3D_TRANSFORM_TEXTURE7:
3363	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3364	return VERR_INVALID_PARAMETER;
3365
3366	case SVGA3D_TRANSFORM_WORLD:
3367	/* View * World = Model View */
3368	glMatrixMode(GL_MODELVIEW);
3369	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3370	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3371	else
3372	glLoadIdentity();
3373	glMultMatrixf(matrix);
3374	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3375	fModelViewChanged = true;
3376	break;
3377
3378	case SVGA3D_TRANSFORM_WORLD1:
3379	case SVGA3D_TRANSFORM_WORLD2:
3380	case SVGA3D_TRANSFORM_WORLD3:
3381	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3382	return VERR_INVALID_PARAMETER;
3383
3384	default:
3385	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3386	return VERR_INVALID_PARAMETER;
3387	}
3388
3389	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3390	if (fModelViewChanged)
3391	{
3392	/* Reprogram the clip planes. */
3393	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3394	{
3395	if (pContext->state.aClipPlane[j].fValid == true)
3396	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3397	}
3398
3399	/* Reprogram the light data. */
3400	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3401	{
3402	if (pContext->state.aLightData[j].fValidData == true)
3403	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3404	}
3405	}
3406
3407	return VINF_SUCCESS;
3408	}
3409
3410	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3411	{
3412	PVMSVGA3DCONTEXT pContext;
3413	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3414	AssertReturn(pState, VERR_NO_MEMORY);
3415
3416	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3417
3418	if ( cid >= pState->cContexts
3419	\|\| pState->papContexts[cid]->id != cid)
3420	{
3421	Log(("vmsvga3dSetZRange invalid context id!\n"));
3422	return VERR_INVALID_PARAMETER;
3423	}
3424	pContext = pState->papContexts[cid];
3425	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3426
3427	pContext->state.zRange = zRange;
3428	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3429
3430	if (zRange.min < -1.0)
3431	zRange.min = -1.0;
3432	if (zRange.max > 1.0)
3433	zRange.max = 1.0;
3434
3435	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3436	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3437	return VINF_SUCCESS;
3438	}
3439
3440	/**
3441	* Convert SVGA blend op value to its OpenGL equivalent
3442	*/
3443	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3444	{
3445	switch (blendOp)
3446	{
3447	case SVGA3D_BLENDOP_ZERO:
3448	return GL_ZERO;
3449	case SVGA3D_BLENDOP_ONE:
3450	return GL_ONE;
3451	case SVGA3D_BLENDOP_SRCCOLOR:
3452	return GL_SRC_COLOR;
3453	case SVGA3D_BLENDOP_INVSRCCOLOR:
3454	return GL_ONE_MINUS_SRC_COLOR;
3455	case SVGA3D_BLENDOP_SRCALPHA:
3456	return GL_SRC_ALPHA;
3457	case SVGA3D_BLENDOP_INVSRCALPHA:
3458	return GL_ONE_MINUS_SRC_ALPHA;
3459	case SVGA3D_BLENDOP_DESTALPHA:
3460	return GL_DST_ALPHA;
3461	case SVGA3D_BLENDOP_INVDESTALPHA:
3462	return GL_ONE_MINUS_DST_ALPHA;
3463	case SVGA3D_BLENDOP_DESTCOLOR:
3464	return GL_DST_COLOR;
3465	case SVGA3D_BLENDOP_INVDESTCOLOR:
3466	return GL_ONE_MINUS_DST_COLOR;
3467	case SVGA3D_BLENDOP_SRCALPHASAT:
3468	return GL_SRC_ALPHA_SATURATE;
3469	case SVGA3D_BLENDOP_BLENDFACTOR:
3470	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3471	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3472	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3473	default:
3474	AssertFailed();
3475	return GL_ONE;
3476	}
3477	}
3478
3479	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3480	{
3481	switch (blendEq)
3482	{
3483	case SVGA3D_BLENDEQ_ADD:
3484	return GL_FUNC_ADD;
3485	case SVGA3D_BLENDEQ_SUBTRACT:
3486	return GL_FUNC_SUBTRACT;
3487	case SVGA3D_BLENDEQ_REVSUBTRACT:
3488	return GL_FUNC_REVERSE_SUBTRACT;
3489	case SVGA3D_BLENDEQ_MINIMUM:
3490	return GL_MIN;
3491	case SVGA3D_BLENDEQ_MAXIMUM:
3492	return GL_MAX;
3493	default:
3494	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3495	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3496	return GL_FUNC_ADD;
3497	}
3498	}
3499
3500	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3501	{
3502	switch (cmpFunc)
3503	{
3504	case SVGA3D_CMP_NEVER:
3505	return GL_NEVER;
3506	case SVGA3D_CMP_LESS:
3507	return GL_LESS;
3508	case SVGA3D_CMP_EQUAL:
3509	return GL_EQUAL;
3510	case SVGA3D_CMP_LESSEQUAL:
3511	return GL_LEQUAL;
3512	case SVGA3D_CMP_GREATER:
3513	return GL_GREATER;
3514	case SVGA3D_CMP_NOTEQUAL:
3515	return GL_NOTEQUAL;
3516	case SVGA3D_CMP_GREATEREQUAL:
3517	return GL_GEQUAL;
3518	case SVGA3D_CMP_ALWAYS:
3519	return GL_ALWAYS;
3520	default:
3521	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3522	return GL_LESS;
3523	}
3524	}
3525
3526	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3527	{
3528	switch (stencilOp)
3529	{
3530	case SVGA3D_STENCILOP_KEEP:
3531	return GL_KEEP;
3532	case SVGA3D_STENCILOP_ZERO:
3533	return GL_ZERO;
3534	case SVGA3D_STENCILOP_REPLACE:
3535	return GL_REPLACE;
3536	case SVGA3D_STENCILOP_INCRSAT:
3537	return GL_INCR_WRAP;
3538	case SVGA3D_STENCILOP_DECRSAT:
3539	return GL_DECR_WRAP;
3540	case SVGA3D_STENCILOP_INVERT:
3541	return GL_INVERT;
3542	case SVGA3D_STENCILOP_INCR:
3543	return GL_INCR;
3544	case SVGA3D_STENCILOP_DECR:
3545	return GL_DECR;
3546	default:
3547	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3548	return GL_KEEP;
3549	}
3550	}
3551
3552	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3553	{
3554	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3555	PVMSVGA3DCONTEXT pContext;
3556	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3557	AssertReturn(pState, VERR_NO_MEMORY);
3558
3559	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3560
3561	if ( cid >= pState->cContexts
3562	\|\| pState->papContexts[cid]->id != cid)
3563	{
3564	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3565	return VERR_INVALID_PARAMETER;
3566	}
3567	pContext = pState->papContexts[cid];
3568	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3569
3570	for (unsigned i = 0; i < cRenderStates; i++)
3571	{
3572	GLenum enableCap = ~(GLenum)0;
3573	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3574	/* Save the render state for vm state saving. */
3575	if (pRenderState[i].state < SVGA3D_RS_MAX)
3576	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3577
3578	switch (pRenderState[i].state)
3579	{
3580	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3581	enableCap = GL_DEPTH_TEST;
3582	val = pRenderState[i].uintValue;
3583	break;
3584
3585	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3586	glDepthMask(!!pRenderState[i].uintValue);
3587	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3588	break;
3589
3590	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3591	enableCap = GL_ALPHA_TEST;
3592	val = pRenderState[i].uintValue;
3593	break;
3594
3595	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3596	enableCap = GL_DITHER;
3597	val = pRenderState[i].uintValue;
3598	break;
3599
3600	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3601	enableCap = GL_FOG;
3602	val = pRenderState[i].uintValue;
3603	break;
3604
3605	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3606	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3607	break;
3608
3609	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3610	enableCap = GL_LIGHTING;
3611	val = pRenderState[i].uintValue;
3612	break;
3613
3614	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3615	/* not applicable */
3616	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3617	break;
3618
3619	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3620	enableCap = GL_POINT_SPRITE_ARB;
3621	val = pRenderState[i].uintValue;
3622	break;
3623
3624	case SVGA3D_RS_POINTSIZE: /* float */
3625	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3626	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3627	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3628	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3629	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3630
3631	glPointSize(pRenderState[i].floatValue);
3632	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3633	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3634	break;
3635
3636	case SVGA3D_RS_POINTSIZEMIN: /* float */
3637	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3638	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3639	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3640	break;
3641
3642	case SVGA3D_RS_POINTSIZEMAX: /* float */
3643	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3644	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3645	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3646	break;
3647
3648	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3649	case SVGA3D_RS_POINTSCALE_A: /* float */
3650	case SVGA3D_RS_POINTSCALE_B: /* float */
3651	case SVGA3D_RS_POINTSCALE_C: /* float */
3652	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3653	break;
3654
3655	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3656	{
3657	GLfloat color[4]; /* red, green, blue, alpha */
3658
3659	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3660
3661	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3662	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3663	break;
3664	}
3665
3666	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3667	{
3668	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3669	for (uint32_t j = 0; j <= 5; j++)
3670	{
3671	if (pRenderState[i].uintValue & RT_BIT(j))
3672	glEnable(GL_CLIP_PLANE0 + j);
3673	else
3674	glDisable(GL_CLIP_PLANE0 + j);
3675	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3676	}
3677	break;
3678	}
3679
3680	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3681	{
3682	GLfloat color[4]; /* red, green, blue, alpha */
3683
3684	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3685
3686	glFogfv(GL_FOG_COLOR, color);
3687	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3688	break;
3689	}
3690
3691	case SVGA3D_RS_FOGSTART: /* float */
3692	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3693	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3694	break;
3695
3696	case SVGA3D_RS_FOGEND: /* float */
3697	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3699	break;
3700
3701	case SVGA3D_RS_FOGDENSITY: /* float */
3702	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3703	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3704	break;
3705
3706	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3707	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3708	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3709	break;
3710
3711	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3712	{
3713	SVGA3dFogMode mode;
3714	mode.uintValue = pRenderState[i].uintValue;
3715
3716	enableCap = GL_FOG_MODE;
3717	switch (mode.s.function)
3718	{
3719	case SVGA3D_FOGFUNC_EXP:
3720	val = GL_EXP;
3721	break;
3722	case SVGA3D_FOGFUNC_EXP2:
3723	val = GL_EXP2;
3724	break;
3725	case SVGA3D_FOGFUNC_LINEAR:
3726	val = GL_LINEAR;
3727	break;
3728	default:
3729	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3730	break;
3731	}
3732
3733	/** @todo how to switch between vertex and pixel fog modes??? */
3734	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3735	#if 0
3736	/* The fog type determines the render state. */
3737	switch (mode.s.type)
3738	{
3739	case SVGA3D_FOGTYPE_VERTEX:
3740	renderState = D3DRS_FOGVERTEXMODE;
3741	break;
3742	case SVGA3D_FOGTYPE_PIXEL:
3743	renderState = D3DRS_FOGTABLEMODE;
3744	break;
3745	default:
3746	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3747	break;
3748	}
3749	#endif
3750
3751	/* Set the fog base to depth or range. */
3752	switch (mode.s.base)
3753	{
3754	case SVGA3D_FOGBASE_DEPTHBASED:
3755	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3756	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3757	break;
3758	case SVGA3D_FOGBASE_RANGEBASED:
3759	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3760	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3761	break;
3762	default:
3763	/* ignore */
3764	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3765	break;
3766	}
3767	break;
3768	}
3769
3770	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3771	{
3772	SVGA3dFillMode mode;
3773
3774	mode.uintValue = pRenderState[i].uintValue;
3775
3776	switch (mode.s.mode)
3777	{
3778	case SVGA3D_FILLMODE_POINT:
3779	val = GL_POINT;
3780	break;
3781	case SVGA3D_FILLMODE_LINE:
3782	val = GL_LINE;
3783	break;
3784	case SVGA3D_FILLMODE_FILL:
3785	val = GL_FILL;
3786	break;
3787	default:
3788	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3789	break;
3790	}
3791	/* @note only front and back faces */
3792	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3793	glPolygonMode(GL_FRONT_AND_BACK, val);
3794	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3795	break;
3796	}
3797
3798	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3799	switch (pRenderState[i].uintValue)
3800	{
3801	case SVGA3D_SHADEMODE_FLAT:
3802	val = GL_FLAT;
3803	break;
3804
3805	case SVGA3D_SHADEMODE_SMOOTH:
3806	val = GL_SMOOTH;
3807	break;
3808
3809	default:
3810	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3811	break;
3812	}
3813
3814	glShadeModel(val);
3815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3816	break;
3817
3818	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3819	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3820	/** @todo */
3821	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3822	/*
3823	renderState = D3DRS_LINEPATTERN;
3824	val = pRenderState[i].uintValue;
3825	*/
3826	break;
3827
3828	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3829	enableCap = GL_LINE_SMOOTH;
3830	val = pRenderState[i].uintValue;
3831	break;
3832
3833	case SVGA3D_RS_LINEWIDTH: /* float */
3834	glLineWidth(pRenderState[i].floatValue);
3835	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3836	break;
3837
3838	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3839	{
3840	/* Refresh the blending state based on the new enable setting.
3841	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3842	*/
3843	static SVGA3dRenderStateName const saRefreshState[] =
3844	{
3845	SVGA3D_RS_SRCBLEND,
3846	SVGA3D_RS_BLENDEQUATION
3847	};
3848	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3849	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3850	{
3851	renderstate[j].state = saRefreshState[j];
3852	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3853	}
3854
3855	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3856	AssertRCReturn(rc, rc);
3857
3858	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3859	continue; /* Ignore if blend is enabled */
3860	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3861	} RT_FALL_THRU();
3862
3863	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3864	enableCap = GL_BLEND;
3865	val = pRenderState[i].uintValue;
3866	break;
3867
3868	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
3869	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
3870	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
3871	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
3872	{
3873	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
3874	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
3875
3876	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
3877	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3878	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
3879	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3880	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
3881	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3882	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
3883	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3884
3885	switch (pRenderState[i].state)
3886	{
3887	case SVGA3D_RS_SRCBLEND:
3888	srcRGB = blendop;
3889	break;
3890	case SVGA3D_RS_DSTBLEND:
3891	dstRGB = blendop;
3892	break;
3893	case SVGA3D_RS_SRCBLENDALPHA:
3894	srcAlpha = blendop;
3895	break;
3896	case SVGA3D_RS_DSTBLENDALPHA:
3897	dstAlpha = blendop;
3898	break;
3899	default:
3900	/* not possible; shut up gcc */
3901	AssertFailed();
3902	break;
3903	}
3904
3905	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3906	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
3907	else
3908	glBlendFunc(srcRGB, dstRGB);
3909	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3910	break;
3911	}
3912
3913	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
3914	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
3915	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3916	{
3917	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
3918	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
3919	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
3920	}
3921	else
3922	{
3923	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3924	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3925	#else
3926	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3927	#endif
3928	}
3929	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3930	break;
3931
3932	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
3933	{
3934	GLfloat red, green, blue, alpha;
3935
3936	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
3937
3938	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3939	glBlendColor(red, green, blue, alpha);
3940	#else
3941	pState->ext.glBlendColor(red, green, blue, alpha);
3942	#endif
3943	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3944	break;
3945	}
3946
3947	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
3948	{
3949	GLenum mode = GL_BACK; /* default for OpenGL */
3950
3951	switch (pRenderState[i].uintValue)
3952	{
3953	case SVGA3D_FACE_NONE:
3954	break;
3955	case SVGA3D_FACE_FRONT:
3956	mode = GL_FRONT;
3957	break;
3958	case SVGA3D_FACE_BACK:
3959	mode = GL_BACK;
3960	break;
3961	case SVGA3D_FACE_FRONT_BACK:
3962	mode = GL_FRONT_AND_BACK;
3963	break;
3964	default:
3965	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3966	break;
3967	}
3968	enableCap = GL_CULL_FACE;
3969	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
3970	{
3971	glCullFace(mode);
3972	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3973	val = 1;
3974	}
3975	else
3976	val = 0;
3977	break;
3978	}
3979
3980	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
3981	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
3982	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3983	break;
3984
3985	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
3986	{
3987	GLclampf ref;
3988
3989	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
3990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3991	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
3992	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3993	break;
3994	}
3995
3996	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
3997	{
3998	GLint func;
3999
4000	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4001	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4002	glAlphaFunc(func, pRenderState[i].floatValue);
4003	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4004	break;
4005	}
4006
4007	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4008	{
4009	/* Refresh the stencil state based on the new enable setting.
4010	* This will take existing states and set them using either glStencil or glStencil*Separate.
4011	*/
4012	static SVGA3dRenderStateName const saRefreshState[] =
4013	{
4014	SVGA3D_RS_STENCILFUNC,
4015	SVGA3D_RS_STENCILFAIL,
4016	SVGA3D_RS_CCWSTENCILFUNC,
4017	SVGA3D_RS_CCWSTENCILFAIL
4018	};
4019	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4020	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4021	{
4022	renderstate[j].state = saRefreshState[j];
4023	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4024	}
4025
4026	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4027	AssertRCReturn(rc, rc);
4028
4029	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4030	continue; /* Ignore if stencil is enabled */
4031	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4032	} RT_FALL_THRU();
4033
4034	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4035	enableCap = GL_STENCIL_TEST;
4036	val = pRenderState[i].uintValue;
4037	break;
4038
4039	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4040	case SVGA3D_RS_STENCILREF: /* uint32_t */
4041	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4042	{
4043	GLint func, ref;
4044	GLuint mask;
4045
4046	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4047	glGetIntegerv(GL_STENCIL_FUNC, &func);
4048	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4049	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4051	glGetIntegerv(GL_STENCIL_REF, &ref);
4052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4053
4054	/* Update the changed value. */
4055	switch (pRenderState[i].state)
4056	{
4057	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4058	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4059	break;
4060
4061	case SVGA3D_RS_STENCILREF: /* uint32_t */
4062	ref = pRenderState[i].uintValue;
4063	break;
4064
4065	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4066	mask = pRenderState[i].uintValue;
4067	break;
4068
4069	default:
4070	/* not possible; shut up gcc */
4071	AssertFailed();
4072	break;
4073	}
4074
4075	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4076	{
4077	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4078	}
4079	else
4080	{
4081	glStencilFunc(func, ref, mask);
4082	}
4083	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4084	break;
4085	}
4086
4087	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4088	glStencilMask(pRenderState[i].uintValue);
4089	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4090	break;
4091
4092	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4093	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4094	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4095	{
4096	GLint sfail, dpfail, dppass;
4097	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4098
4099	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4100	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4101	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4102	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4103	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4104	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4105
4106	switch (pRenderState[i].state)
4107	{
4108	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4109	sfail = stencilop;
4110	break;
4111	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4112	dpfail = stencilop;
4113	break;
4114	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4115	dppass = stencilop;
4116	break;
4117	default:
4118	/* not possible; shut up gcc */
4119	AssertFailed();
4120	break;
4121	}
4122	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4123	{
4124	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4125	}
4126	else
4127	{
4128	glStencilOp(sfail, dpfail, dppass);
4129	}
4130	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4131	break;
4132	}
4133
4134	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4135	{
4136	GLint ref;
4137	GLuint mask;
4138	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4139
4140	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4141	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4142	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4143	glGetIntegerv(GL_STENCIL_REF, &ref);
4144	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4145
4146	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4148	break;
4149	}
4150
4151	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4152	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4153	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4154	{
4155	GLint sfail, dpfail, dppass;
4156	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4157
4158	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4160	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4161	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4162	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4164
4165	switch (pRenderState[i].state)
4166	{
4167	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4168	sfail = stencilop;
4169	break;
4170	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4171	dpfail = stencilop;
4172	break;
4173	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4174	dppass = stencilop;
4175	break;
4176	default:
4177	/* not possible; shut up gcc */
4178	AssertFailed();
4179	break;
4180	}
4181	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4183	break;
4184	}
4185
4186	case SVGA3D_RS_ZBIAS: /* float */
4187	/** @todo unknown meaning; depth bias is not identical
4188	renderState = D3DRS_DEPTHBIAS;
4189	val = pRenderState[i].uintValue;
4190	*/
4191	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4192	break;
4193
4194	case SVGA3D_RS_DEPTHBIAS: /* float */
4195	{
4196	GLfloat factor;
4197
4198	/** @todo not sure if the d3d & ogl definitions are identical. */
4199
4200	/* Do not change the factor part. */
4201	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4203
4204	glPolygonOffset(factor, pRenderState[i].floatValue);
4205	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4206	break;
4207	}
4208
4209	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4210	{
4211	GLfloat units;
4212
4213	/** @todo not sure if the d3d & ogl definitions are identical. */
4214
4215	/* Do not change the factor part. */
4216	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4217	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4218
4219	glPolygonOffset(pRenderState[i].floatValue, units);
4220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4221	break;
4222	}
4223
4224	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4225	{
4226	GLboolean red, green, blue, alpha;
4227	SVGA3dColorMask mask;
4228
4229	mask.uintValue = pRenderState[i].uintValue;
4230
4231	red = mask.s.red;
4232	green = mask.s.green;
4233	blue = mask.s.blue;
4234	alpha = mask.s.alpha;
4235
4236	glColorMask(red, green, blue, alpha);
4237	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4238	break;
4239	}
4240
4241	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4242	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4243	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4244	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4245	break;
4246
4247	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4248	enableCap = GL_SCISSOR_TEST;
4249	val = pRenderState[i].uintValue;
4250	break;
4251
4252	#if 0
4253	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4254	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4255	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4256	val = pRenderState[i].uintValue;
4257	break;
4258
4259	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4260	renderState = D3DRS_SPECULARMATERIALSOURCE;
4261	val = pRenderState[i].uintValue;
4262	break;
4263
4264	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4265	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4266	val = pRenderState[i].uintValue;
4267	break;
4268
4269	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4270	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4271	val = pRenderState[i].uintValue;
4272	break;
4273	#endif
4274
4275	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4276	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4277	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4278	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4279	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4280	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4281	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4282	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4283	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4284	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4285	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4286	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4287	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4288	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4289	break;
4290
4291	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4292	case SVGA3D_RS_TWEENFACTOR: /* float */
4293	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4294	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4295	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4296	break;
4297
4298	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4299	enableCap = GL_MULTISAMPLE;
4300	val = pRenderState[i].uintValue;
4301	break;
4302
4303	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4304	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4305	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4306	break;
4307
4308	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4309	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4310	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4311	/*
4312	renderState = D3DRS_COORDINATETYPE;
4313	val = pRenderState[i].uintValue;
4314	*/
4315	break;
4316
4317	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4318	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4319	/* Invert the selected mode because of y-inversion (?) */
4320	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4322	break;
4323
4324	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4325	//AssertFailed();
4326	/*
4327	D3DRS_SRGBWRITEENABLE ??
4328	renderState = D3DRS_OUTPUTGAMMA;
4329	val = pRenderState[i].uintValue;
4330	*/
4331	break;
4332
4333	#if 0
4334
4335	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4336	//AssertFailed();
4337	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4338	val = pRenderState[i].uintValue;
4339	break;
4340
4341	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4342	renderState = D3DRS_TEXTUREFACTOR;
4343	val = pRenderState[i].uintValue;
4344	break;
4345
4346	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4347	renderState = D3DRS_LOCALVIEWER;
4348	val = pRenderState[i].uintValue;
4349	break;
4350
4351	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4352	AssertFailed();
4353	/*
4354	renderState = D3DRS_ZVISIBLE;
4355	val = pRenderState[i].uintValue;
4356	*/
4357	break;
4358
4359	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4360	renderState = D3DRS_CLIPPING;
4361	val = pRenderState[i].uintValue;
4362	break;
4363
4364	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4365	glTexParameter GL_TEXTURE_WRAP_S
4366	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4367	renderState = D3DRS_WRAP0;
4368	val = pRenderState[i].uintValue;
4369	break;
4370
4371	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4372	glTexParameter GL_TEXTURE_WRAP_T
4373	renderState = D3DRS_WRAP1;
4374	val = pRenderState[i].uintValue;
4375	break;
4376
4377	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4378	glTexParameter GL_TEXTURE_WRAP_R
4379	renderState = D3DRS_WRAP2;
4380	val = pRenderState[i].uintValue;
4381	break;
4382
4383
4384	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4385	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4386	val = pRenderState[i].uintValue;
4387	break;
4388
4389
4390	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4391	renderState = D3DRS_BLENDOPALPHA;
4392	val = pRenderState[i].uintValue;
4393	break;
4394
4395	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4396	AssertFailed();
4397	/*
4398	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4399	val = pRenderState[i].uintValue;
4400	*/
4401	break;
4402
4403	#endif
4404	default:
4405	AssertFailed();
4406	break;
4407	}
4408
4409	if (enableCap != ~(GLenum)0)
4410	{
4411	if (val)
4412	glEnable(enableCap);
4413	else
4414	glDisable(enableCap);
4415	}
4416	}
4417
4418	return VINF_SUCCESS;
4419	}
4420
4421	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4422	{
4423	PVMSVGA3DCONTEXT pContext;
4424	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4425	PVMSVGA3DSURFACE pRenderTarget;
4426
4427	AssertReturn(pState, VERR_NO_MEMORY);
4428	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4429
4430	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4431
4432	if ( cid >= pState->cContexts
4433	\|\| pState->papContexts[cid]->id != cid)
4434	{
4435	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4436	return VERR_INVALID_PARAMETER;
4437	}
4438	pContext = pState->papContexts[cid];
4439	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4440
4441	/* Save for vm state save/restore. */
4442	pContext->state.aRenderTargets[type] = target.sid;
4443
4444	if (target.sid == SVGA3D_INVALID_ID)
4445	{
4446	/* Disable render target. */
4447	switch (type)
4448	{
4449	case SVGA3D_RT_DEPTH:
4450	case SVGA3D_RT_STENCIL:
4451	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4452	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4453	break;
4454
4455	case SVGA3D_RT_COLOR0:
4456	case SVGA3D_RT_COLOR1:
4457	case SVGA3D_RT_COLOR2:
4458	case SVGA3D_RT_COLOR3:
4459	case SVGA3D_RT_COLOR4:
4460	case SVGA3D_RT_COLOR5:
4461	case SVGA3D_RT_COLOR6:
4462	case SVGA3D_RT_COLOR7:
4463	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4464	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4465	break;
4466
4467	default:
4468	AssertFailedReturn(VERR_INVALID_PARAMETER);
4469	}
4470	return VINF_SUCCESS;
4471	}
4472
4473	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4474	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4475	pRenderTarget = pState->papSurfaces[target.sid];
4476
4477	switch (type)
4478	{
4479	case SVGA3D_RT_DEPTH:
4480	case SVGA3D_RT_STENCIL:
4481	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4482	#if 1
4483	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4484	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4485	{
4486	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4487	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4488	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4489	AssertRCReturn(rc, rc);
4490	}
4491
4492	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4493	Assert(!pRenderTarget->fDirty);
4494
4495	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4496
4497	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4498	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4499	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4500	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4501	#else
4502	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4503	{
4504	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4505	pContext = &pState->SharedCtx;
4506	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4507
4508	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4509	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4510
4511	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4512	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4513
4514	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4515	pRenderTarget->internalFormatGL,
4516	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4517	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4518	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4519
4520	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4521	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4522
4523	pContext = pState->papContexts[cid];
4524	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4525	pRenderTarget->idWeakContextAssociation = cid;
4526	}
4527
4528	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4530	Assert(!pRenderTarget->fDirty);
4531	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4532
4533	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4534
4535	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4536	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4537	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4538	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4539	#endif
4540	break;
4541
4542	case SVGA3D_RT_COLOR0:
4543	case SVGA3D_RT_COLOR1:
4544	case SVGA3D_RT_COLOR2:
4545	case SVGA3D_RT_COLOR3:
4546	case SVGA3D_RT_COLOR4:
4547	case SVGA3D_RT_COLOR5:
4548	case SVGA3D_RT_COLOR6:
4549	case SVGA3D_RT_COLOR7:
4550	{
4551	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4552	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4553	{
4554	Log(("vmsvga3dSetRenderTarget: create texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4555	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4556	AssertRCReturn(rc, rc);
4557	}
4558
4559	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4560	Assert(!pRenderTarget->fDirty);
4561
4562	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4563
4564	GLenum textarget;
4565	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4566	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4567	else
4568	textarget = GL_TEXTURE_2D;
4569	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4570	textarget, pRenderTarget->oglId.texture, target.mipmap);
4571	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4572
4573	#ifdef DEBUG
4574	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4575	if (status != GL_FRAMEBUFFER_COMPLETE)
4576	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4577	#endif
4578	/** @todo use glDrawBuffers too? */
4579	break;
4580	}
4581
4582	default:
4583	AssertFailedReturn(VERR_INVALID_PARAMETER);
4584	}
4585
4586	return VINF_SUCCESS;
4587	}
4588
4589	#if 0
4590	/**
4591	* Convert SVGA texture combiner value to its D3D equivalent
4592	*/
4593	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4594	{
4595	switch (value)
4596	{
4597	case SVGA3D_TC_DISABLE:
4598	return D3DTOP_DISABLE;
4599	case SVGA3D_TC_SELECTARG1:
4600	return D3DTOP_SELECTARG1;
4601	case SVGA3D_TC_SELECTARG2:
4602	return D3DTOP_SELECTARG2;
4603	case SVGA3D_TC_MODULATE:
4604	return D3DTOP_MODULATE;
4605	case SVGA3D_TC_ADD:
4606	return D3DTOP_ADD;
4607	case SVGA3D_TC_ADDSIGNED:
4608	return D3DTOP_ADDSIGNED;
4609	case SVGA3D_TC_SUBTRACT:
4610	return D3DTOP_SUBTRACT;
4611	case SVGA3D_TC_BLENDTEXTUREALPHA:
4612	return D3DTOP_BLENDTEXTUREALPHA;
4613	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4614	return D3DTOP_BLENDDIFFUSEALPHA;
4615	case SVGA3D_TC_BLENDCURRENTALPHA:
4616	return D3DTOP_BLENDCURRENTALPHA;
4617	case SVGA3D_TC_BLENDFACTORALPHA:
4618	return D3DTOP_BLENDFACTORALPHA;
4619	case SVGA3D_TC_MODULATE2X:
4620	return D3DTOP_MODULATE2X;
4621	case SVGA3D_TC_MODULATE4X:
4622	return D3DTOP_MODULATE4X;
4623	case SVGA3D_TC_DSDT:
4624	AssertFailed(); /** @todo ??? */
4625	return D3DTOP_DISABLE;
4626	case SVGA3D_TC_DOTPRODUCT3:
4627	return D3DTOP_DOTPRODUCT3;
4628	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4629	return D3DTOP_BLENDTEXTUREALPHAPM;
4630	case SVGA3D_TC_ADDSIGNED2X:
4631	return D3DTOP_ADDSIGNED2X;
4632	case SVGA3D_TC_ADDSMOOTH:
4633	return D3DTOP_ADDSMOOTH;
4634	case SVGA3D_TC_PREMODULATE:
4635	return D3DTOP_PREMODULATE;
4636	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4637	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4638	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4639	return D3DTOP_MODULATECOLOR_ADDALPHA;
4640	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4641	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4642	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4643	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4644	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4645	return D3DTOP_BUMPENVMAPLUMINANCE;
4646	case SVGA3D_TC_MULTIPLYADD:
4647	return D3DTOP_MULTIPLYADD;
4648	case SVGA3D_TC_LERP:
4649	return D3DTOP_LERP;
4650	default:
4651	AssertFailed();
4652	return D3DTOP_DISABLE;
4653	}
4654	}
4655
4656	/**
4657	* Convert SVGA texture arg data value to its D3D equivalent
4658	*/
4659	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4660	{
4661	switch (value)
4662	{
4663	case SVGA3D_TA_CONSTANT:
4664	return D3DTA_CONSTANT;
4665	case SVGA3D_TA_PREVIOUS:
4666	return D3DTA_CURRENT; /* current = previous */
4667	case SVGA3D_TA_DIFFUSE:
4668	return D3DTA_DIFFUSE;
4669	case SVGA3D_TA_TEXTURE:
4670	return D3DTA_TEXTURE;
4671	case SVGA3D_TA_SPECULAR:
4672	return D3DTA_SPECULAR;
4673	default:
4674	AssertFailed();
4675	return 0;
4676	}
4677	}
4678
4679	/**
4680	* Convert SVGA texture transform flag value to its D3D equivalent
4681	*/
4682	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4683	{
4684	switch (value)
4685	{
4686	case SVGA3D_TEX_TRANSFORM_OFF:
4687	return D3DTTFF_DISABLE;
4688	case SVGA3D_TEX_TRANSFORM_S:
4689	return D3DTTFF_COUNT1; /** @todo correct? */
4690	case SVGA3D_TEX_TRANSFORM_T:
4691	return D3DTTFF_COUNT2; /** @todo correct? */
4692	case SVGA3D_TEX_TRANSFORM_R:
4693	return D3DTTFF_COUNT3; /** @todo correct? */
4694	case SVGA3D_TEX_TRANSFORM_Q:
4695	return D3DTTFF_COUNT4; /** @todo correct? */
4696	case SVGA3D_TEX_PROJECTED:
4697	return D3DTTFF_PROJECTED;
4698	default:
4699	AssertFailed();
4700	return 0;
4701	}
4702	}
4703	#endif
4704
4705	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4706	{
4707	switch (value)
4708	{
4709	case SVGA3D_TEX_ADDRESS_WRAP:
4710	return GL_REPEAT;
4711	case SVGA3D_TEX_ADDRESS_MIRROR:
4712	return GL_MIRRORED_REPEAT;
4713	case SVGA3D_TEX_ADDRESS_CLAMP:
4714	return GL_CLAMP_TO_EDGE;
4715	case SVGA3D_TEX_ADDRESS_BORDER:
4716	return GL_CLAMP_TO_BORDER;
4717	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4718	AssertFailed();
4719	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4720
4721	case SVGA3D_TEX_ADDRESS_EDGE:
4722	case SVGA3D_TEX_ADDRESS_INVALID:
4723	default:
4724	AssertFailed();
4725	return GL_REPEAT; /* default */
4726	}
4727	}
4728
4729	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4730	{
4731	switch (value)
4732	{
4733	case SVGA3D_TEX_FILTER_NONE:
4734	case SVGA3D_TEX_FILTER_LINEAR:
4735	return GL_LINEAR;
4736	case SVGA3D_TEX_FILTER_NEAREST:
4737	return GL_NEAREST;
4738	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4739	/** @todo */
4740	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4741	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4742	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4743	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4744	default:
4745	AssertFailed();
4746	return GL_LINEAR; /* default */
4747	}
4748	}
4749
4750	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4751	{
4752	/* flip the red and blue bytes */
4753	uint8_t blue = value & 0xff;
4754	uint8_t red = (value >> 16) & 0xff;
4755	return (value & 0xff00ff00) \| red \| (blue << 16);
4756	}
4757
4758	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4759	{
4760	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4761	GLenum currentStage = ~(GLenum)0;
4762	PVMSVGA3DCONTEXT pContext;
4763	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4764	AssertReturn(pState, VERR_NO_MEMORY);
4765
4766	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4767
4768	if ( cid >= pState->cContexts
4769	\|\| pState->papContexts[cid]->id != cid)
4770	{
4771	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4772	return VERR_INVALID_PARAMETER;
4773	}
4774	pContext = pState->papContexts[cid];
4775	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4776
4777	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4778	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4779
4780	for (uint32_t i = 0; i < cTextureStates; ++i)
4781	{
4782	GLenum textureType = ~(GLenum)0;
4783	#if 0
4784	GLenum samplerType = ~(GLenum)0;
4785	#endif
4786
4787	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4788	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4789
4790	/* Record the texture state for vm state saving. */
4791	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4792	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4793	{
4794	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4795	}
4796
4797	/* Activate the right texture unit for subsequent texture state changes. */
4798	if (pTextureState[i].stage != currentStage \|\| i == 0)
4799	{
4800	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4801	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4802	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4803	{
4804	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4805	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4806	currentStage = pTextureState[i].stage;
4807	}
4808	else
4809	{
4810	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4811	continue;
4812	}
4813
4814	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4815	{
4816	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4817	AssertRCReturn(rc, rc);
4818	}
4819	else
4820	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4821	}
4822
4823	switch (pTextureState[i].name)
4824	{
4825	case SVGA3D_TS_BUMPENVMAT00: /* float */
4826	case SVGA3D_TS_BUMPENVMAT01: /* float */
4827	case SVGA3D_TS_BUMPENVMAT10: /* float */
4828	case SVGA3D_TS_BUMPENVMAT11: /* float */
4829	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4830	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4831	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4832	break;
4833
4834	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4835	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4836	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4837	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4838	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4839	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4840	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4841	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4842	/** @todo not used by MesaGL */
4843	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4844	break;
4845	#if 0
4846
4847	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4848	textureType = D3DTSS_TEXCOORDINDEX;
4849	val = pTextureState[i].value;
4850	break;
4851
4852	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4853	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4854	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4855	break;
4856	#endif
4857
4858	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4859	{
4860	uint32_t const sid = pTextureState[i].value;
4861
4862	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4863	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4864
4865	/* Only if texture actually changed. */ /// @todo needs testing.
4866	if (pContext->aSidActiveTextures[currentStage] != sid)
4867	{
4868	if (pCurrentTextureSurface)
4869	{
4870	/* Unselect the currently associated texture. */
4871	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4872	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4873
4874	if (currentStage < 8)
4875	{
4876	/* Necessary for the fixed pipeline. */
4877	glDisable(pCurrentTextureSurface->targetGL);
4878	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4879	}
4880
4881	pCurrentTextureSurface = NULL;
4882	}
4883
4884	if (sid == SVGA3D_INVALID_ID)
4885	{
4886	Assert(pCurrentTextureSurface == NULL);
4887	}
4888	else
4889	{
4890	PVMSVGA3DSURFACE pSurface;
4891	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
4892	AssertRCReturn(rc, rc);
4893
4894	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
4895	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
4896	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
4897
4898	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
4899	{
4900	Log(("CreateTexture (%d,%d) levels=%d\n",
4901	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
4902	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
4903	AssertRCReturn(rc, rc);
4904	}
4905
4906	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
4907	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4908
4909	if (currentStage < 8)
4910	{
4911	/* Necessary for the fixed pipeline. */
4912	glEnable(pSurface->targetGL);
4913	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4914	}
4915
4916	/* Remember the currently active texture. */
4917	pCurrentTextureSurface = pSurface;
4918
4919	/* Recreate the texture state as glBindTexture resets them all (sigh). */
4920	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
4921	{
4922	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
4923	{
4924	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
4925
4926	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
4927	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
4928	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
4929	}
4930	}
4931	}
4932
4933	pContext->aSidActiveTextures[currentStage] = sid;
4934	}
4935
4936	/* Finished; continue with the next one. */
4937	continue;
4938	}
4939
4940	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
4941	textureType = GL_TEXTURE_WRAP_R; /* R = W */
4942	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4943	break;
4944
4945	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
4946	textureType = GL_TEXTURE_WRAP_S; /* S = U */
4947	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4948	break;
4949
4950	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
4951	textureType = GL_TEXTURE_WRAP_T; /* T = V */
4952	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4953	break;
4954
4955	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
4956	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
4957	{
4958	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
4959	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
4960
4961	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
4962	textureType = GL_TEXTURE_MIN_FILTER;
4963	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
4964	{
4965	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
4966	{
4967	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4968	val = GL_NEAREST_MIPMAP_LINEAR;
4969	else
4970	val = GL_NEAREST_MIPMAP_NEAREST;
4971	}
4972	else
4973	{
4974	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4975	val = GL_LINEAR_MIPMAP_LINEAR;
4976	else
4977	val = GL_LINEAR_MIPMAP_NEAREST;
4978	}
4979	}
4980	else
4981	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
4982	break;
4983	}
4984
4985	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
4986	textureType = GL_TEXTURE_MAG_FILTER;
4987	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
4988	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
4989	break;
4990
4991	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
4992	{
4993	GLfloat color[4]; /* red, green, blue, alpha */
4994	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
4995
4996	GLenum targetGL;
4997	if (pCurrentTextureSurface)
4998	targetGL = pCurrentTextureSurface->targetGL;
4999	else
5000	{
5001	/* No texture bound, assume 2D. */
5002	targetGL = GL_TEXTURE_2D;
5003	}
5004
5005	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5006	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5007	break;
5008	}
5009
5010	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5011	{
5012	GLenum targetGL;
5013	if (pCurrentTextureSurface)
5014	targetGL = pCurrentTextureSurface->targetGL;
5015	else
5016	{
5017	/* No texture bound, assume 2D. */
5018	targetGL = GL_TEXTURE_2D;
5019	}
5020
5021	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5022	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5023	break;
5024	}
5025
5026	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5027	textureType = GL_TEXTURE_BASE_LEVEL;
5028	val = pTextureState[i].value;
5029	break;
5030
5031	#if 0
5032	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5033	samplerType = D3DSAMP_MAXANISOTROPY;
5034	val = pTextureState[i].value; /* Identical?? */
5035	break;
5036
5037	case SVGA3D_TS_GAMMA: /* float */
5038	samplerType = D3DSAMP_SRGBTEXTURE;
5039	/* Boolean in D3D */
5040	if (pTextureState[i].floatValue == 1.0f)
5041	val = FALSE;
5042	else
5043	val = TRUE;
5044	break;
5045	#endif
5046	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5047	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5048	AssertFailed();
5049	break;
5050
5051	default:
5052	//AssertFailed();
5053	break;
5054	}
5055
5056	if (textureType != ~(GLenum)0)
5057	{
5058	GLenum targetGL;
5059	if (pCurrentTextureSurface)
5060	targetGL = pCurrentTextureSurface->targetGL;
5061	else
5062	{
5063	/* No texture bound, assume 2D. */
5064	targetGL = GL_TEXTURE_2D;
5065	}
5066
5067	glTexParameteri(targetGL, textureType, val);
5068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5069	}
5070	}
5071
5072	return VINF_SUCCESS;
5073	}
5074
5075	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5076	{
5077	PVMSVGA3DCONTEXT pContext;
5078	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5079	AssertReturn(pState, VERR_NO_MEMORY);
5080	GLenum oglFace;
5081
5082	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5083
5084	if ( cid >= pState->cContexts
5085	\|\| pState->papContexts[cid]->id != cid)
5086	{
5087	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5088	return VERR_INVALID_PARAMETER;
5089	}
5090	pContext = pState->papContexts[cid];
5091	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5092
5093	switch (face)
5094	{
5095	case SVGA3D_FACE_NONE:
5096	case SVGA3D_FACE_FRONT:
5097	oglFace = GL_FRONT;
5098	break;
5099
5100	case SVGA3D_FACE_BACK:
5101	oglFace = GL_BACK;
5102	break;
5103
5104	case SVGA3D_FACE_FRONT_BACK:
5105	oglFace = GL_FRONT_AND_BACK;
5106	break;
5107
5108	default:
5109	AssertFailedReturn(VERR_INVALID_PARAMETER);
5110	}
5111
5112	/* Save for vm state save/restore. */
5113	pContext->state.aMaterial[face].fValid = true;
5114	pContext->state.aMaterial[face].material = *pMaterial;
5115	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5116
5117	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5118	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5119	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5120	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5121	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5123
5124	return VINF_SUCCESS;
5125	}
5126
5127	/** @todo Move into separate library as we are using logic from Wine here. */
5128	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5129	{
5130	PVMSVGA3DCONTEXT pContext;
5131	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5132	AssertReturn(pState, VERR_NO_MEMORY);
5133	float QuadAttenuation;
5134
5135	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5136
5137	if ( cid >= pState->cContexts
5138	\|\| pState->papContexts[cid]->id != cid)
5139	{
5140	Log(("vmsvga3dSetLightData invalid context id!\n"));
5141	return VERR_INVALID_PARAMETER;
5142	}
5143	pContext = pState->papContexts[cid];
5144	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5145
5146	/* Store for vm state save/restore */
5147	if (index < SVGA3D_MAX_LIGHTS)
5148	{
5149	pContext->state.aLightData[index].fValidData = true;
5150	pContext->state.aLightData[index].data = *pData;
5151	}
5152	else
5153	AssertFailed();
5154
5155	if ( pData->attenuation0 < 0.0f
5156	\|\| pData->attenuation1 < 0.0f
5157	\|\| pData->attenuation2 < 0.0f)
5158	{
5159	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5160	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5161	}
5162
5163	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5164	glMatrixMode(GL_MODELVIEW);
5165	glPushMatrix();
5166	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5167
5168	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5169	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5170	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5171
5172	if (pData->range * pData->range >= FLT_MIN)
5173	QuadAttenuation = 1.4f / (pData->range * pData->range);
5174	else
5175	QuadAttenuation = 0.0f;
5176
5177	switch (pData->type)
5178	{
5179	case SVGA3D_LIGHTTYPE_POINT:
5180	{
5181	GLfloat position[4];
5182
5183	position[0] = pData->position[0];
5184	position[1] = pData->position[1];
5185	position[2] = pData->position[2];
5186	position[3] = 1.0f;
5187
5188	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5189	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5190
5191	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5192	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5193
5194	/* Attenuation - Are these right? guessing... */
5195	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5196	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5197
5198	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5199	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5200
5201	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5202	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5203
5204	/** @todo range */
5205	break;
5206	}
5207
5208	case SVGA3D_LIGHTTYPE_SPOT1:
5209	{
5210	GLfloat exponent;
5211	GLfloat position[4];
5212	const GLfloat pi = 4.0f * atanf(1.0f);
5213
5214	position[0] = pData->position[0];
5215	position[1] = pData->position[1];
5216	position[2] = pData->position[2];
5217	position[3] = 1.0f;
5218
5219	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5220	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5221
5222	position[0] = pData->direction[0];
5223	position[1] = pData->direction[1];
5224	position[2] = pData->direction[2];
5225	position[3] = 1.0f;
5226
5227	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5228	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5229
5230	/*
5231	* opengl-ish and d3d-ish spot lights use too different models for the
5232	* light "intensity" as a function of the angle towards the main light direction,
5233	* so we only can approximate very roughly.
5234	* however spot lights are rather rarely used in games (if ever used at all).
5235	* furthermore if still used, probably nobody pays attention to such details.
5236	*/
5237	if (pData->falloff == 0)
5238	{
5239	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5240	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5241	* will always be 1.0 for both of them, and we don't have to care for the
5242	* rest of the rather complex calculation
5243	*/
5244	exponent = 0.0f;
5245	}
5246	else
5247	{
5248	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5249	if (rho < 0.0001f)
5250	rho = 0.0001f;
5251	exponent = -0.3f/log(cos(rho/2));
5252	}
5253	if (exponent > 128.0f)
5254	exponent = 128.0f;
5255
5256	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5257	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5258
5259	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5260	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5261
5262	/* Attenuation - Are these right? guessing... */
5263	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5264	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5265
5266	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5267	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5268
5269	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5270	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5271
5272	/** @todo range */
5273	break;
5274	}
5275
5276	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5277	{
5278	GLfloat position[4];
5279
5280	position[0] = -pData->direction[0];
5281	position[1] = -pData->direction[1];
5282	position[2] = -pData->direction[2];
5283	position[3] = 0.0f;
5284
5285	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5286	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5287
5288	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5289	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5290
5291	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5292	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5293	break;
5294	}
5295
5296	case SVGA3D_LIGHTTYPE_SPOT2:
5297	default:
5298	Log(("Unsupported light type!!\n"));
5299	return VERR_INVALID_PARAMETER;
5300	}
5301
5302	/* Restore the modelview matrix */
5303	glPopMatrix();
5304
5305	return VINF_SUCCESS;
5306	}
5307
5308	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5309	{
5310	PVMSVGA3DCONTEXT pContext;
5311	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5312	AssertReturn(pState, VERR_NO_MEMORY);
5313
5314	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5315
5316	if ( cid >= pState->cContexts
5317	\|\| pState->papContexts[cid]->id != cid)
5318	{
5319	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5320	return VERR_INVALID_PARAMETER;
5321	}
5322	pContext = pState->papContexts[cid];
5323	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5324
5325	/* Store for vm state save/restore */
5326	if (index < SVGA3D_MAX_LIGHTS)
5327	pContext->state.aLightData[index].fEnabled = !!enabled;
5328	else
5329	AssertFailed();
5330
5331	if (enabled)
5332	{
5333	/* Load the default settings if none have been set yet. */
5334	if (!pContext->state.aLightData[index].fValidData)
5335	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5336	glEnable(GL_LIGHT0 + index);
5337	}
5338	else
5339	glDisable(GL_LIGHT0 + index);
5340
5341	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5342	return VINF_SUCCESS;
5343	}
5344
5345	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5346	{
5347	PVMSVGA3DCONTEXT pContext;
5348	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5349	AssertReturn(pState, VERR_NO_MEMORY);
5350
5351	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5352
5353	if ( cid >= pState->cContexts
5354	\|\| pState->papContexts[cid]->id != cid)
5355	{
5356	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5357	return VERR_INVALID_PARAMETER;
5358	}
5359	pContext = pState->papContexts[cid];
5360	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5361
5362	/* Save for vm state save/restore. */
5363	pContext->state.RectViewPort = *pRect;
5364	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5365
5366	/** @todo y-inversion for partial viewport coordinates? */
5367	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5368	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5369
5370	/* Reset the projection matrix as that relies on the viewport setting. */
5371	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5372	{
5373	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5374	}
5375	else
5376	{
5377	float matrix[16];
5378
5379	/* identity matrix if no matrix set. */
5380	memset(matrix, 0, sizeof(matrix));
5381	matrix[0] = 1.0;
5382	matrix[5] = 1.0;
5383	matrix[10] = 1.0;
5384	matrix[15] = 1.0;
5385	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5386	}
5387
5388	return VINF_SUCCESS;
5389	}
5390
5391	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5392	{
5393	PVMSVGA3DCONTEXT pContext;
5394	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5395	AssertReturn(pState, VERR_NO_MEMORY);
5396	double oglPlane[4];
5397
5398	Log(("vmsvga3dSetClipPlane cid=%x %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5399	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5400
5401	if ( cid >= pState->cContexts
5402	\|\| pState->papContexts[cid]->id != cid)
5403	{
5404	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5405	return VERR_INVALID_PARAMETER;
5406	}
5407	pContext = pState->papContexts[cid];
5408	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5409
5410	/* Store for vm state save/restore. */
5411	pContext->state.aClipPlane[index].fValid = true;
5412	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5413
5414	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5415	oglPlane[0] = (double)plane[0];
5416	oglPlane[1] = (double)plane[1];
5417	oglPlane[2] = (double)plane[2];
5418	oglPlane[3] = (double)plane[3];
5419
5420	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5421	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5422
5423	return VINF_SUCCESS;
5424	}
5425
5426	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5427	{
5428	PVMSVGA3DCONTEXT pContext;
5429	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5430	AssertReturn(pState, VERR_NO_MEMORY);
5431
5432	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5433
5434	if ( cid >= pState->cContexts
5435	\|\| pState->papContexts[cid]->id != cid)
5436	{
5437	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5438	return VERR_INVALID_PARAMETER;
5439	}
5440	pContext = pState->papContexts[cid];
5441	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5442
5443	/* Store for vm state save/restore. */
5444	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5445	pContext->state.RectScissor = *pRect;
5446
5447	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5448	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5449
5450	return VINF_SUCCESS;
5451	}
5452
5453	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5454	{
5455	/* Convert byte color components to float (0-1.0) */
5456	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5457	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5458	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5459	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5460	}
5461
5462	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5463	uint32_t cRects, SVGA3dRect *pRect)
5464	{
5465	GLbitfield mask = 0;
5466	PVMSVGA3DCONTEXT pContext;
5467	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5468	AssertReturn(pState, VERR_NO_MEMORY);
5469	GLboolean fDepthWriteEnabled = GL_FALSE;
5470
5471	Log(("vmsvga3dCommandClear cid=%x clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5472
5473	if ( cid >= pState->cContexts
5474	\|\| pState->papContexts[cid]->id != cid)
5475	{
5476	Log(("vmsvga3dCommandClear invalid context id!\n"));
5477	return VERR_INVALID_PARAMETER;
5478	}
5479	pContext = pState->papContexts[cid];
5480	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5481
5482	if (clearFlag & SVGA3D_CLEAR_COLOR)
5483	{
5484	GLfloat red, green, blue, alpha;
5485
5486	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5487
5488	/* Set the color clear value. */
5489	glClearColor(red, green, blue, alpha);
5490
5491	mask \|= GL_COLOR_BUFFER_BIT;
5492	}
5493	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5494	{
5495	/** @todo possibly the same problem as with glDepthMask */
5496	glClearStencil(stencil);
5497	mask \|= GL_STENCIL_BUFFER_BIT;
5498	}
5499	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5500	{
5501	glClearDepth((GLdouble)depth);
5502	mask \|= GL_DEPTH_BUFFER_BIT;
5503
5504	/* glClear will not clear the depth buffer if writing is disabled. */
5505	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5506	if (fDepthWriteEnabled == GL_FALSE)
5507	glDepthMask(GL_TRUE);
5508	}
5509
5510	if (cRects)
5511	{
5512	/* Save the current scissor test bit and scissor box. */
5513	glPushAttrib(GL_SCISSOR_BIT);
5514	glEnable(GL_SCISSOR_TEST);
5515	for (unsigned i=0; i < cRects; i++)
5516	{
5517	Log(("vmsvga3dCommandClear: rect %d (%d,%d)(%d,%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].x + pRect[i].w, pRect[i].y + pRect[i].h));
5518	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5519	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5520	glClear(mask);
5521	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5522	}
5523	/* Restore the old scissor test bit and box */
5524	glPopAttrib();
5525	}
5526	else
5527	{
5528	glClear(mask);
5529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5530	}
5531
5532	/* Restore depth write state. */
5533	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5534	&& fDepthWriteEnabled == GL_FALSE)
5535	glDepthMask(GL_FALSE);
5536
5537	return VINF_SUCCESS;
5538	}
5539
5540	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5541	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5542	{
5543	normalized = GL_FALSE;
5544	switch (identity.type)
5545	{
5546	case SVGA3D_DECLTYPE_FLOAT1:
5547	size = 1;
5548	type = GL_FLOAT;
5549	break;
5550	case SVGA3D_DECLTYPE_FLOAT2:
5551	size = 2;
5552	type = GL_FLOAT;
5553	break;
5554	case SVGA3D_DECLTYPE_FLOAT3:
5555	size = 3;
5556	type = GL_FLOAT;
5557	break;
5558	case SVGA3D_DECLTYPE_FLOAT4:
5559	size = 4;
5560	type = GL_FLOAT;
5561	break;
5562
5563	case SVGA3D_DECLTYPE_D3DCOLOR:
5564	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5565	type = GL_UNSIGNED_BYTE;
5566	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5567	break;
5568
5569	case SVGA3D_DECLTYPE_UBYTE4N:
5570	normalized = GL_TRUE;
5571	RT_FALL_THRU();
5572	case SVGA3D_DECLTYPE_UBYTE4:
5573	size = 4;
5574	type = GL_UNSIGNED_BYTE;
5575	break;
5576
5577	case SVGA3D_DECLTYPE_SHORT2N:
5578	normalized = GL_TRUE;
5579	RT_FALL_THRU();
5580	case SVGA3D_DECLTYPE_SHORT2:
5581	size = 2;
5582	type = GL_SHORT;
5583	break;
5584
5585	case SVGA3D_DECLTYPE_SHORT4N:
5586	normalized = GL_TRUE;
5587	RT_FALL_THRU();
5588	case SVGA3D_DECLTYPE_SHORT4:
5589	size = 4;
5590	type = GL_SHORT;
5591	break;
5592
5593	case SVGA3D_DECLTYPE_USHORT4N:
5594	normalized = GL_TRUE;
5595	size = 4;
5596	type = GL_UNSIGNED_SHORT;
5597	break;
5598
5599	case SVGA3D_DECLTYPE_USHORT2N:
5600	normalized = GL_TRUE;
5601	size = 2;
5602	type = GL_UNSIGNED_SHORT;
5603	break;
5604
5605	case SVGA3D_DECLTYPE_UDEC3:
5606	size = 3;
5607	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5608	break;
5609
5610	case SVGA3D_DECLTYPE_DEC3N:
5611	normalized = true;
5612	size = 3;
5613	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5614	break;
5615
5616	case SVGA3D_DECLTYPE_FLOAT16_2:
5617	size = 2;
5618	type = GL_HALF_FLOAT;
5619	break;
5620	case SVGA3D_DECLTYPE_FLOAT16_4:
5621	size = 4;
5622	type = GL_HALF_FLOAT;
5623	break;
5624	default:
5625	AssertFailedReturn(VERR_INVALID_PARAMETER);
5626	}
5627
5628	//pVertexElement->Method = identity.method;
5629	//pVertexElement->Usage = identity.usage;
5630
5631	return VINF_SUCCESS;
5632	}
5633
5634	/* Convert VMWare primitive type to its OpenGL equivalent. */
5635	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5636	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5637	{
5638	switch (PrimitiveType)
5639	{
5640	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5641	*pMode = GL_TRIANGLES;
5642	pcVertices = cPrimitiveCount 3;
5643	break;
5644	case SVGA3D_PRIMITIVE_POINTLIST:
5645	*pMode = GL_POINTS;
5646	*pcVertices = cPrimitiveCount;
5647	break;
5648	case SVGA3D_PRIMITIVE_LINELIST:
5649	*pMode = GL_LINES;
5650	pcVertices = cPrimitiveCount 2;
5651	break;
5652	case SVGA3D_PRIMITIVE_LINESTRIP:
5653	*pMode = GL_LINE_STRIP;
5654	*pcVertices = cPrimitiveCount + 1;
5655	break;
5656	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5657	*pMode = GL_TRIANGLE_STRIP;
5658	*pcVertices = cPrimitiveCount + 2;
5659	break;
5660	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5661	*pMode = GL_TRIANGLE_FAN;
5662	*pcVertices = cPrimitiveCount + 2;
5663	break;
5664	default:
5665	return VERR_INVALID_PARAMETER;
5666	}
5667	return VINF_SUCCESS;
5668	}
5669
5670	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5671	{
5672	int rc;
5673
5674	/* Reset the view matrix (also takes the world matrix into account). */
5675	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5676	{
5677	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5678	}
5679	else
5680	{
5681	float matrix[16];
5682
5683	/* identity matrix if no matrix set. */
5684	memset(matrix, 0, sizeof(matrix));
5685	matrix[0] = 1.0;
5686	matrix[5] = 1.0;
5687	matrix[10] = 1.0;
5688	matrix[15] = 1.0;
5689	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5690	}
5691
5692	/* Reset the projection matrix. */
5693	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5694	{
5695	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5696	}
5697	else
5698	{
5699	float matrix[16];
5700
5701	/* identity matrix if no matrix set. */
5702	memset(matrix, 0, sizeof(matrix));
5703	matrix[0] = 1.0;
5704	matrix[5] = 1.0;
5705	matrix[10] = 1.0;
5706	matrix[15] = 1.0;
5707	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5708	}
5709	AssertRC(rc);
5710	return rc;
5711	}
5712
5713	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5714	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5715	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5716	{
5717	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5718	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5719	PVMSVGA3DSURFACE pVertexSurface;
5720
5721	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5722	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5723
5724	pVertexSurface = pState->papSurfaces[sidVertex];
5725	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5726
5727	/* Create and/or bind the vertex buffer. */
5728	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5729	{
5730	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5731	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5732	pContext = &pState->SharedCtx;
5733	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5734
5735	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5736	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5737
5738	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5739	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5740
5741	Assert(pVertexSurface->fDirty);
5742	/** @todo rethink usage dynamic/static */
5743	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5744	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5745
5746	pVertexSurface->pMipmapLevels[0].fDirty = false;
5747	pVertexSurface->fDirty = false;
5748
5749	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5750
5751	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5752	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5753
5754	pContext = pSavedCtx;
5755	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5756	}
5757
5758	Assert(pVertexSurface->fDirty == false);
5759	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5760	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5761
5762	/* Setup the vertex declarations. */
5763	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5764	{
5765	GLint size;
5766	GLenum type;
5767	GLboolean normalized;
5768	GLuint index = iVertexDeclBase + iVertex;
5769
5770	Log(("vmsvga3dDrawPrimitives: array index %d type=%s (%d) method=%s (%d) usage=%s (%d) usageIndex=%d stride=%d offset=%d\n", index, vmsvgaDeclType2String(pVertexDecl[iVertex].identity.type), pVertexDecl[iVertex].identity.type, vmsvgaDeclMethod2String(pVertexDecl[iVertex].identity.method), pVertexDecl[iVertex].identity.method, vmsvgaDeclUsage2String(pVertexDecl[iVertex].identity.usage), pVertexDecl[iVertex].identity.usage, pVertexDecl[iVertex].identity.usageIndex, pVertexDecl[iVertex].array.stride, pVertexDecl[iVertex].array.offset));
5771
5772	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5773	AssertRCReturn(rc, rc);
5774
5775	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5776	{
5777	/* Use numbered vertex arrays when shaders are active. */
5778	pState->ext.glEnableVertexAttribArray(index);
5779	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5780	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5781	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5783
5784	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5785	pState->ext.glVertexAttribDivisor(index, divisor);
5786	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5787
5788	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5789	}
5790	else
5791	{
5792	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5793	switch (pVertexDecl[iVertex].identity.usage)
5794	{
5795	case SVGA3D_DECLUSAGE_POSITIONT:
5796	case SVGA3D_DECLUSAGE_POSITION:
5797	{
5798	glEnableClientState(GL_VERTEX_ARRAY);
5799	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5800	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5801	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5802	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5803	break;
5804	}
5805	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5806	AssertFailed();
5807	break;
5808	case SVGA3D_DECLUSAGE_BLENDINDICES:
5809	AssertFailed();
5810	break;
5811	case SVGA3D_DECLUSAGE_NORMAL:
5812	glEnableClientState(GL_NORMAL_ARRAY);
5813	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5814	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5815	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5816	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5817	break;
5818	case SVGA3D_DECLUSAGE_PSIZE:
5819	AssertFailed();
5820	break;
5821	case SVGA3D_DECLUSAGE_TEXCOORD:
5822	/* Specify the affected texture unit. */
5823	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5824	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5825	#else
5826	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5827	#endif
5828	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5830	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5831	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5832	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5833	break;
5834	case SVGA3D_DECLUSAGE_TANGENT:
5835	AssertFailed();
5836	break;
5837	case SVGA3D_DECLUSAGE_BINORMAL:
5838	AssertFailed();
5839	break;
5840	case SVGA3D_DECLUSAGE_TESSFACTOR:
5841	AssertFailed();
5842	break;
5843	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5844	glEnableClientState(GL_COLOR_ARRAY);
5845	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5846	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5847	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5848	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5849	break;
5850	case SVGA3D_DECLUSAGE_FOG:
5851	glEnableClientState(GL_FOG_COORD_ARRAY);
5852	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5853	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5854	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5855	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5856	break;
5857	case SVGA3D_DECLUSAGE_DEPTH:
5858	AssertFailed();
5859	break;
5860	case SVGA3D_DECLUSAGE_SAMPLE:
5861	AssertFailed();
5862	break;
5863	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5864	}
5865	}
5866
5867	#ifdef LOG_ENABLED
5868	if (pVertexDecl[iVertex].array.stride == 0)
5869	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5870	#endif
5871	}
5872
5873	return VINF_SUCCESS;
5874	}
5875
5876	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5877	{
5878	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5879
5880	/* Clean up the vertex declarations. */
5881	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5882	{
5883	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
5884	{
5885	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
5886	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
5887	vmsvga3dResetTransformMatrices(pThis, pContext);
5888	}
5889
5890	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5891	{
5892	/* Use numbered vertex arrays when shaders are active. */
5893	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5894	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5895	}
5896	else
5897	{
5898	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5899	switch (pVertexDecl[iVertex].identity.usage)
5900	{
5901	case SVGA3D_DECLUSAGE_POSITION:
5902	case SVGA3D_DECLUSAGE_POSITIONT:
5903	glDisableClientState(GL_VERTEX_ARRAY);
5904	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5905	break;
5906	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5907	break;
5908	case SVGA3D_DECLUSAGE_BLENDINDICES:
5909	break;
5910	case SVGA3D_DECLUSAGE_NORMAL:
5911	glDisableClientState(GL_NORMAL_ARRAY);
5912	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5913	break;
5914	case SVGA3D_DECLUSAGE_PSIZE:
5915	break;
5916	case SVGA3D_DECLUSAGE_TEXCOORD:
5917	/* Specify the affected texture unit. */
5918	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5919	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5920	#else
5921	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5922	#endif
5923	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5924	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5925	break;
5926	case SVGA3D_DECLUSAGE_TANGENT:
5927	break;
5928	case SVGA3D_DECLUSAGE_BINORMAL:
5929	break;
5930	case SVGA3D_DECLUSAGE_TESSFACTOR:
5931	break;
5932	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
5933	glDisableClientState(GL_COLOR_ARRAY);
5934	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5935	break;
5936	case SVGA3D_DECLUSAGE_FOG:
5937	glDisableClientState(GL_FOG_COORD_ARRAY);
5938	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5939	break;
5940	case SVGA3D_DECLUSAGE_DEPTH:
5941	break;
5942	case SVGA3D_DECLUSAGE_SAMPLE:
5943	break;
5944	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5945	}
5946	}
5947	}
5948	/* Unbind the vertex buffer after usage. */
5949	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
5950	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5951	return VINF_SUCCESS;
5952	}
5953
5954	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
5955	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
5956	SVGA3dVertexDivisor *pVertexDivisor)
5957	{
5958	RT_NOREF(pVertexDivisor);
5959	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5960	AssertReturn(pState, VERR_INTERNAL_ERROR);
5961	PVMSVGA3DCONTEXT pContext;
5962	int rc = VERR_NOT_IMPLEMENTED;
5963	uint32_t iCurrentVertex;
5964
5965	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
5966
5967	/* Caller already check these, but it cannot hurt to check again... */
5968	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
5969	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
5970	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
5971
5972	if (!cVertexDivisor)
5973	pVertexDivisor = NULL; /* Be sure. */
5974
5975	if ( cid >= pState->cContexts
5976	\|\| pState->papContexts[cid]->id != cid)
5977	{
5978	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
5979	return VERR_INVALID_PARAMETER;
5980	}
5981	pContext = pState->papContexts[cid];
5982	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5983
5984	/* Check for pretransformed vertex declarations. */
5985	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5986	{
5987	switch (pVertexDecl[iVertex].identity.usage)
5988	{
5989	case SVGA3D_DECLUSAGE_POSITIONT:
5990	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
5991	RT_FALL_THRU();
5992	case SVGA3D_DECLUSAGE_POSITION:
5993	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
5994	pContext->state.RectViewPort.h,
5995	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
5996	break;
5997	default: /* Shut up MSC. */ break;
5998	}
5999	}
6000
6001	/* Try to figure out if instancing is used.
6002	* Support simple instancing case with one set of indexed data and one set per-instance data.
6003	*/
6004	uint32_t cInstances = 0;
6005	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6006	{
6007	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6008	{
6009	if (cInstances == 0)
6010	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6011	else
6012	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6013	}
6014	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6015	{
6016	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6017	}
6018	}
6019
6020	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6021	if (pContext->pShaderContext)
6022	{
6023	uint32_t rtHeight = 0;
6024
6025	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6026	{
6027	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6028	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6029	}
6030
6031	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6032	}
6033
6034	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6035	iCurrentVertex = 0;
6036	while (iCurrentVertex < numVertexDecls)
6037	{
6038	uint32_t sidVertex = SVGA_ID_INVALID;
6039	uint32_t iVertex;
6040
6041	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6042	{
6043	if ( sidVertex != SVGA_ID_INVALID
6044	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6045	)
6046	break;
6047	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6048	}
6049
6050	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6051	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6052	AssertRCReturn(rc, rc);
6053
6054	iCurrentVertex = iVertex;
6055	}
6056
6057	/* Now draw the primitives. */
6058	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6059	{
6060	GLenum modeDraw;
6061	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6062	PVMSVGA3DSURFACE pIndexSurface = NULL;
6063	unsigned cVertices;
6064
6065	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6066	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6067	if (RT_FAILURE(rc))
6068	{
6069	AssertRC(rc);
6070	goto internal_error;
6071	}
6072
6073	if (sidIndex != SVGA3D_INVALID_ID)
6074	{
6075	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6076
6077	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6078	\|\| sidIndex >= pState->cSurfaces
6079	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6080	{
6081	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6082	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6083	rc = VERR_INVALID_PARAMETER;
6084	goto internal_error;
6085	}
6086	pIndexSurface = pState->papSurfaces[sidIndex];
6087	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6088
6089	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6090	{
6091	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6092	pContext = &pState->SharedCtx;
6093	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6094
6095	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6096	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6097
6098	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6100
6101	Assert(pIndexSurface->fDirty);
6102
6103	/** @todo rethink usage dynamic/static */
6104	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6105	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6106
6107	pIndexSurface->pMipmapLevels[0].fDirty = false;
6108	pIndexSurface->fDirty = false;
6109
6110	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6111
6112	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6114
6115	pContext = pState->papContexts[cid];
6116	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6117	}
6118	Assert(pIndexSurface->fDirty == false);
6119
6120	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6122	}
6123
6124	if (!pIndexSurface)
6125	{
6126	/* Render without an index buffer */
6127	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6128	if (cInstances == 0)
6129	{
6130	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6131	}
6132	else
6133	{
6134	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6135	}
6136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6137	}
6138	else
6139	{
6140	GLenum indexType;
6141
6142	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6143	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6144
6145	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6146	{
6147	indexType = GL_UNSIGNED_BYTE;
6148	}
6149	else
6150	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6151	{
6152	indexType = GL_UNSIGNED_SHORT;
6153	}
6154	else
6155	{
6156	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6157	indexType = GL_UNSIGNED_INT;
6158	}
6159
6160	Log(("DrawIndexedPrimitive %x cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pVertexDecl[0].rangeHint.first, pVertexDecl[0].rangeHint.last, pRange[iPrimitive].indexArray.offset, pRange[iPrimitive].primitiveCount, pRange[iPrimitive].indexWidth, pRange[iPrimitive].indexBias));
6161	if (cInstances == 0)
6162	{
6163	/* Render with an index buffer */
6164	if (pRange[iPrimitive].indexBias == 0)
6165	glDrawElements(modeDraw,
6166	cVertices,
6167	indexType,
6168	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6169	else
6170	pState->ext.glDrawElementsBaseVertex(modeDraw,
6171	cVertices,
6172	indexType,
6173	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6174	pRange[iPrimitive].indexBias); /* basevertex */
6175	}
6176	else
6177	{
6178	/* Render with an index buffer */
6179	if (pRange[iPrimitive].indexBias == 0)
6180	pState->ext.glDrawElementsInstanced(modeDraw,
6181	cVertices,
6182	indexType,
6183	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6184	cInstances);
6185	else
6186	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6187	cVertices,
6188	indexType,
6189	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6190	cInstances,
6191	pRange[iPrimitive].indexBias); /* basevertex */
6192	}
6193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6194
6195	/* Unbind the index buffer after usage. */
6196	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6197	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6198	}
6199	}
6200
6201	internal_error:
6202
6203	/* Deactivate the vertex declarations. */
6204	iCurrentVertex = 0;
6205	while (iCurrentVertex < numVertexDecls)
6206	{
6207	uint32_t sidVertex = SVGA_ID_INVALID;
6208	uint32_t iVertex;
6209
6210	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6211	{
6212	if ( sidVertex != SVGA_ID_INVALID
6213	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6214	)
6215	break;
6216	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6217	}
6218
6219	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6220	AssertRCReturn(rc, rc);
6221
6222	iCurrentVertex = iVertex;
6223	}
6224	#ifdef DEBUG
6225	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6226	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6227	{
6228	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6229	{
6230	PVMSVGA3DSURFACE pTexture;
6231	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6232	AssertContinue(RT_SUCCESS(rc2));
6233
6234	GLint activeTextureUnit = 0;
6235	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6236	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6237
6238	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6239	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6240
6241	GLint activeTexture = 0;
6242	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6243	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6244
6245	pState->ext.glActiveTexture(activeTextureUnit);
6246	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6247
6248	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6249	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6250	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6251	}
6252	}
6253	#endif
6254
6255	#if 0
6256	/* Dump render target to a bitmap. */
6257	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6258	{
6259	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6260	PVMSVGA3DSURFACE pSurface;
6261	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6262	if (RT_SUCCESS(rc2))
6263	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6264	}
6265	#endif
6266
6267	return rc;
6268	}
6269
6270
6271	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6272	{
6273	PVMSVGA3DCONTEXT pContext;
6274	PVMSVGA3DSHADER pShader;
6275	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6276	AssertReturn(pState, VERR_NO_MEMORY);
6277	int rc;
6278
6279	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6280	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6281
6282	if ( cid >= pState->cContexts
6283	\|\| pState->papContexts[cid]->id != cid)
6284	{
6285	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6286	return VERR_INVALID_PARAMETER;
6287	}
6288	pContext = pState->papContexts[cid];
6289	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6290
6291	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6292	if (type == SVGA3D_SHADERTYPE_VS)
6293	{
6294	if (shid >= pContext->cVertexShaders)
6295	{
6296	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6297	AssertReturn(pvNew, VERR_NO_MEMORY);
6298	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6299	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6300	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6301	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6302	pContext->cVertexShaders = shid + 1;
6303	}
6304	/* If one already exists with this id, then destroy it now. */
6305	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6306	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6307
6308	pShader = &pContext->paVertexShader[shid];
6309	}
6310	else
6311	{
6312	Assert(type == SVGA3D_SHADERTYPE_PS);
6313	if (shid >= pContext->cPixelShaders)
6314	{
6315	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6316	AssertReturn(pvNew, VERR_NO_MEMORY);
6317	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6318	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6319	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6320	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6321	pContext->cPixelShaders = shid + 1;
6322	}
6323	/* If one already exists with this id, then destroy it now. */
6324	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6325	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6326
6327	pShader = &pContext->paPixelShader[shid];
6328	}
6329
6330	memset(pShader, 0, sizeof(*pShader));
6331	pShader->id = shid;
6332	pShader->cid = cid;
6333	pShader->type = type;
6334	pShader->cbData = cbData;
6335	pShader->pShaderProgram = RTMemAllocZ(cbData);
6336	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6337	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6338
6339	#ifdef DUMP_SHADER_DISASSEMBLY
6340	LPD3DXBUFFER pDisassembly;
6341	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6342	if (hr == D3D_OK)
6343	{
6344	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6345	pDisassembly->Release();
6346	}
6347	#endif
6348
6349	switch (type)
6350	{
6351	case SVGA3D_SHADERTYPE_VS:
6352	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6353	break;
6354
6355	case SVGA3D_SHADERTYPE_PS:
6356	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6357	break;
6358
6359	default:
6360	AssertFailedReturn(VERR_INVALID_PARAMETER);
6361	}
6362	if (rc != VINF_SUCCESS)
6363	{
6364	RTMemFree(pShader->pShaderProgram);
6365	memset(pShader, 0, sizeof(*pShader));
6366	pShader->id = SVGA3D_INVALID_ID;
6367	}
6368
6369	return rc;
6370	}
6371
6372	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6373	{
6374	PVMSVGA3DCONTEXT pContext;
6375	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6376	AssertReturn(pState, VERR_NO_MEMORY);
6377	PVMSVGA3DSHADER pShader = NULL;
6378	int rc;
6379
6380	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6381
6382	if ( cid >= pState->cContexts
6383	\|\| pState->papContexts[cid]->id != cid)
6384	{
6385	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6386	return VERR_INVALID_PARAMETER;
6387	}
6388	pContext = pState->papContexts[cid];
6389	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6390
6391	if (type == SVGA3D_SHADERTYPE_VS)
6392	{
6393	if ( shid < pContext->cVertexShaders
6394	&& pContext->paVertexShader[shid].id == shid)
6395	{
6396	pShader = &pContext->paVertexShader[shid];
6397	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6398	AssertRC(rc);
6399	}
6400	}
6401	else
6402	{
6403	Assert(type == SVGA3D_SHADERTYPE_PS);
6404	if ( shid < pContext->cPixelShaders
6405	&& pContext->paPixelShader[shid].id == shid)
6406	{
6407	pShader = &pContext->paPixelShader[shid];
6408	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6409	AssertRC(rc);
6410	}
6411	}
6412
6413	if (pShader)
6414	{
6415	if (pShader->pShaderProgram)
6416	RTMemFree(pShader->pShaderProgram);
6417	memset(pShader, 0, sizeof(*pShader));
6418	pShader->id = SVGA3D_INVALID_ID;
6419	}
6420	else
6421	AssertFailedReturn(VERR_INVALID_PARAMETER);
6422
6423	return VINF_SUCCESS;
6424	}
6425
6426	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6427	{
6428	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6429	AssertReturn(pState, VERR_NO_MEMORY);
6430	int rc;
6431
6432	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6433
6434	if ( !pContext
6435	&& cid < pState->cContexts
6436	&& pState->papContexts[cid]->id == cid)
6437	pContext = pState->papContexts[cid];
6438	else if (!pContext)
6439	{
6440	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6441	Log(("vmsvga3dShaderSet invalid context id!\n"));
6442	return VERR_INVALID_PARAMETER;
6443	}
6444	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6445
6446	if (type == SVGA3D_SHADERTYPE_VS)
6447	{
6448	/* Save for vm state save/restore. */
6449	pContext->state.shidVertex = shid;
6450	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6451
6452	if ( shid < pContext->cVertexShaders
6453	&& pContext->paVertexShader[shid].id == shid)
6454	{
6455	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6456	Assert(type == pShader->type);
6457
6458	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6459	AssertRCReturn(rc, rc);
6460	}
6461	else
6462	if (shid == SVGA_ID_INVALID)
6463	{
6464	/* Unselect shader. */
6465	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6466	AssertRCReturn(rc, rc);
6467	}
6468	else
6469	AssertFailedReturn(VERR_INVALID_PARAMETER);
6470	}
6471	else
6472	{
6473	/* Save for vm state save/restore. */
6474	pContext->state.shidPixel = shid;
6475	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6476
6477	Assert(type == SVGA3D_SHADERTYPE_PS);
6478	if ( shid < pContext->cPixelShaders
6479	&& pContext->paPixelShader[shid].id == shid)
6480	{
6481	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6482	Assert(type == pShader->type);
6483
6484	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6485	AssertRCReturn(rc, rc);
6486	}
6487	else
6488	if (shid == SVGA_ID_INVALID)
6489	{
6490	/* Unselect shader. */
6491	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6492	AssertRCReturn(rc, rc);
6493	}
6494	else
6495	AssertFailedReturn(VERR_INVALID_PARAMETER);
6496	}
6497
6498	return VINF_SUCCESS;
6499	}
6500
6501	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6502	{
6503	PVMSVGA3DCONTEXT pContext;
6504	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6505	AssertReturn(pState, VERR_NO_MEMORY);
6506	int rc;
6507
6508	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6509
6510	if ( cid >= pState->cContexts
6511	\|\| pState->papContexts[cid]->id != cid)
6512	{
6513	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6514	return VERR_INVALID_PARAMETER;
6515	}
6516	pContext = pState->papContexts[cid];
6517	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6518
6519	for (uint32_t i = 0; i < cRegisters; i++)
6520	{
6521	#ifdef LOG_ENABLED
6522	switch (ctype)
6523	{
6524	case SVGA3D_CONST_TYPE_FLOAT:
6525	{
6526	float pValuesF = (float )pValues;
6527	Log(("ConstantF %d: value=%d, %d, %d, %d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0f), (int)(pValuesF[i4 + 1] 100.0f), (int)(pValuesF[i4 + 2] 100.0f), (int)(pValuesF[i4 + 3] 100.0f)));
6528	break;
6529	}
6530
6531	case SVGA3D_CONST_TYPE_INT:
6532	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6533	break;
6534
6535	case SVGA3D_CONST_TYPE_BOOL:
6536	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6537	break;
6538	}
6539	#endif
6540	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6541	}
6542
6543	switch (type)
6544	{
6545	case SVGA3D_SHADERTYPE_VS:
6546	switch (ctype)
6547	{
6548	case SVGA3D_CONST_TYPE_FLOAT:
6549	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6550	break;
6551
6552	case SVGA3D_CONST_TYPE_INT:
6553	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6554	break;
6555
6556	case SVGA3D_CONST_TYPE_BOOL:
6557	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6558	break;
6559
6560	default:
6561	AssertFailedReturn(VERR_INVALID_PARAMETER);
6562	}
6563	AssertRCReturn(rc, rc);
6564	break;
6565
6566	case SVGA3D_SHADERTYPE_PS:
6567	switch (ctype)
6568	{
6569	case SVGA3D_CONST_TYPE_FLOAT:
6570	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6571	break;
6572
6573	case SVGA3D_CONST_TYPE_INT:
6574	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6575	break;
6576
6577	case SVGA3D_CONST_TYPE_BOOL:
6578	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6579	break;
6580
6581	default:
6582	AssertFailedReturn(VERR_INVALID_PARAMETER);
6583	}
6584	AssertRCReturn(rc, rc);
6585	break;
6586
6587	default:
6588	AssertFailedReturn(VERR_INVALID_PARAMETER);
6589	}
6590
6591	return VINF_SUCCESS;
6592	}
6593
6594	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6595	{
6596	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6597	GLuint idQuery = 0;
6598	pState->ext.glGenQueries(1, &idQuery);
6599	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6600	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6601	pContext->occlusion.idQuery = idQuery;
6602	return VINF_SUCCESS;
6603	}
6604
6605	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6606	{
6607	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6608	if (pContext->occlusion.idQuery)
6609	{
6610	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6611	}
6612	return VINF_SUCCESS;
6613	}
6614
6615	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6616	{
6617	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6618	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6619	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6620	return VINF_SUCCESS;
6621	}
6622
6623	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6624	{
6625	RT_NOREF(pContext);
6626	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6627	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6628	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6629	return VINF_SUCCESS;
6630	}
6631
6632	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6633	{
6634	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6635	GLuint pixels = 0;
6636	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6637	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6638
6639	*pu32Pixels = (uint32_t)pixels;
6640	return VINF_SUCCESS;
6641	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 76255

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