DevVGA-SVGA3d-ogl.cpp@ 75696

Last change on this file since 75696 was 75696, checked in by vboxsync, 6 years ago
DevVGA-SVGA3d-ogl.cpp: the code does not use texture buffer objects
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 75696 2018-11-23 19:57:37Z 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 RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS MyWinGetProcAddress
68	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
69	{
70	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
71	PROC p = wglGetProcAddress(pszSymbol);
72	if (RT_VALID_PTR(p))
73	return p;
74	return 0;
75	}
76	#elif defined(RT_OS_DARWIN)
77	# include <dlfcn.h>
78	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
79	/** Resolves an OpenGL symbol. */
80	static void MyNSGLGetProcAddress(const char pszSymbol)
81	{
82	/* Another copy in shaderapi.c. */
83	static void *s_pvImage = NULL;
84	if (s_pvImage == NULL)
85	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
86	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
87	}
88
89	#else
90	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
91	#endif
92
93	/* Invert y-coordinate for OpenGL's bottom left origin. */
94	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
95	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
96
97	/**
98	* Macro for doing something and then checking for errors during initialization.
99	* Uses AssertLogRelMsg.
100	*/
101	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
102	do \
103	{ \
104	a_Expr; \
105	GLenum iGlError = glGetError(); \
106	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
107	} while (0)
108
109	/**
110	* Macro for doing something and then checking for errors during initialization,
111	* doing the same in the other context when enabled.
112	*
113	* This will try both profiles in dual profile builds. Caller must be in the
114	* default context.
115	*
116	* Uses AssertLogRelMsg to indicate trouble.
117	*/
118	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
119	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
120	do \
121	{ \
122	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
123	a_Expr; \
124	GLenum iGlError = glGetError(); \
125	if (iGlError != GL_NO_ERROR) \
126	{ \
127	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
128	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
129	a_Expr; \
130	GLenum iGlError2 = glGetError(); \
131	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
132	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
133	} \
134	} while (0)
135	#else
136	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
137	#endif
138
139
140	/*********************************************************************************************************************************
141	* Global Variables *
142	*********************************************************************************************************************************/
143	/* Define the default light parameters as specified by MSDN. */
144	/** @todo move out; fetched from Wine */
145	const SVGA3dLightData vmsvga3d_default_light =
146	{
147	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
148	false, /* inWorldSpace */
149	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
150	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
151	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
152	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
153	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
154	0.0f, /* range */
155	0.0f, /* falloff */
156	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
157	0.0f, /* theta */
158	0.0f /* phi */
159	};
160
161
162	/*********************************************************************************************************************************
163	* Internal Functions *
164	*********************************************************************************************************************************/
165	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
166	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
167
168	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
169	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
170
171
172	/**
173	* Checks if the given OpenGL extension is supported.
174	*
175	* @returns true if supported, false if not.
176	* @param pState The VMSVGA3d state.
177	* @param rsMinGLVersion The OpenGL version that introduced this feature
178	* into the core.
179	* @param pszWantedExtension The name of the OpenGL extension we want padded
180	* with one space at each end.
181	* @remarks Init time only.
182	*/
183	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
184	{
185	RT_NOREF(rsMinGLVersion);
186	/* check padding. */
187	Assert(pszWantedExtension[0] == ' ');
188	Assert(pszWantedExtension[1] != ' ');
189	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
190
191	/* Look it up. */
192	bool fRet = false;
193	if (strstr(pState->pszExtensions, pszWantedExtension))
194	fRet = true;
195
196	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
197	#ifdef RT_OS_DARWIN
198	AssertMsg( rsMinGLVersion == 0.0
199	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
200	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
201	("%s actual:%d min:%d fRet=%d\n",
202	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
203	#else
204	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
205	("%s actual:%d min:%d fRet=%d\n",
206	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
207	#endif
208	return fRet;
209	}
210
211
212	/**
213	* Outputs GL_EXTENSIONS list to the release log.
214	*/
215	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
216	{
217	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
218	bool fBuffered = RTLogRelSetBuffering(true);
219
220	/*
221	* Determin the column widths first.
222	*/
223	size_t acchWidths[4] = { 1, 1, 1, 1 };
224	uint32_t i;
225	const char *psz = pszExtensions;
226	for (i = 0; ; i++)
227	{
228	while (*psz == ' ')
229	psz++;
230	if (!*psz)
231	break;
232
233	const char *pszEnd = strchr(psz, ' ');
234	AssertBreak(pszEnd);
235	size_t cch = pszEnd - psz;
236
237	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
238	if (acchWidths[iColumn] < cch)
239	acchWidths[iColumn] = cch;
240
241	psz = pszEnd;
242	}
243
244	/*
245	* Output it.
246	*/
247	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
248	psz = pszExtensions;
249	for (i = 0; ; i++)
250	{
251	while (*psz == ' ')
252	psz++;
253	if (!*psz)
254	break;
255
256	const char *pszEnd = strchr(psz, ' ');
257	AssertBreak(pszEnd);
258	size_t cch = pszEnd - psz;
259
260	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
261	if (iColumn == 0)
262	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
263	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
264	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
265	else
266	LogRel((" %.*s", cch, psz));
267
268	psz = pszEnd;
269	}
270
271	RTLogRelSetBuffering(fBuffered);
272	LogRel(("\n"));
273	}
274
275	/**
276	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
277	* @a ppszExtensions.
278	*
279	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
280	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
281	* @param fGLProfileVersion The OpenGL profile version.
282	*/
283	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
284	{
285	int rc;
286	*ppszExtensions = NULL;
287
288	/*
289	* Try the old glGetString interface first.
290	*/
291	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
292	if (pszExtensions)
293	{
294	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
295	AssertLogRelRCReturn(rc, rc);
296	}
297	else
298	{
299	/*
300	* The new interface where each extension string is retrieved separately.
301	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
302	* the above GL_EXTENSIONS error lingers on darwin. sucks.
303	*/
304	#ifndef GL_NUM_EXTENSIONS
305	# define GL_NUM_EXTENSIONS 0x821D
306	#endif
307	GLint cExtensions = 1024;
308	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
309	Assert(cExtensions != 1024);
310
311	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
312	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
313
314	rc = RTStrAAppend(ppszExtensions, " ");
315	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
316	{
317	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
318	if (pszExt)
319	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
320	}
321	AssertRCReturn(rc, rc);
322	}
323
324	#if 1
325	/*
326	* Add extensions promoted into the core OpenGL profile.
327	*/
328	static const struct
329	{
330	float fGLVersion;
331	const char *pszzExtensions;
332	} s_aPromotedExtensions[] =
333	{
334	{
335	1.1f,
336	" GL_EXT_vertex_array \0"
337	" GL_EXT_polygon_offset \0"
338	" GL_EXT_blend_logic_op \0"
339	" GL_EXT_texture \0"
340	" GL_EXT_copy_texture \0"
341	" GL_EXT_subtexture \0"
342	" GL_EXT_texture_object \0"
343	" GL_ARB_framebuffer_object \0"
344	" GL_ARB_map_buffer_range \0"
345	" GL_ARB_vertex_array_object \0"
346	"\0"
347	},
348	{
349	1.2f,
350	" EXT_texture3D \0"
351	" EXT_bgra \0"
352	" EXT_packed_pixels \0"
353	" EXT_rescale_normal \0"
354	" EXT_separate_specular_color \0"
355	" SGIS_texture_edge_clamp \0"
356	" SGIS_texture_lod \0"
357	" EXT_draw_range_elements \0"
358	"\0"
359	},
360	{
361	1.3f,
362	" GL_ARB_texture_compression \0"
363	" GL_ARB_texture_cube_map \0"
364	" GL_ARB_multisample \0"
365	" GL_ARB_multitexture \0"
366	" GL_ARB_texture_env_add \0"
367	" GL_ARB_texture_env_combine \0"
368	" GL_ARB_texture_env_dot3 \0"
369	" GL_ARB_texture_border_clamp \0"
370	" GL_ARB_transpose_matrix \0"
371	"\0"
372	},
373	{
374	1.5f,
375	" GL_SGIS_generate_mipmap \0"
376	/" GL_NV_blend_equare \0"/
377	" GL_ARB_depth_texture \0"
378	" GL_ARB_shadow \0"
379	" GL_EXT_fog_coord \0"
380	" GL_EXT_multi_draw_arrays \0"
381	" GL_ARB_point_parameters \0"
382	" GL_EXT_secondary_color \0"
383	" GL_EXT_blend_func_separate \0"
384	" GL_EXT_stencil_wrap \0"
385	" GL_ARB_texture_env_crossbar \0"
386	" GL_EXT_texture_lod_bias \0"
387	" GL_ARB_texture_mirrored_repeat \0"
388	" GL_ARB_window_pos \0"
389	"\0"
390	},
391	{
392	1.6f,
393	" GL_ARB_vertex_buffer_object \0"
394	" GL_ARB_occlusion_query \0"
395	" GL_EXT_shadow_funcs \0"
396	},
397	{
398	2.0f,
399	" GL_ARB_shader_objects \0" /??/
400	" GL_ARB_vertex_shader \0" /??/
401	" GL_ARB_fragment_shader \0" /??/
402	" GL_ARB_shading_language_100 \0" /??/
403	" GL_ARB_draw_buffers \0"
404	" GL_ARB_texture_non_power_of_two \0"
405	" GL_ARB_point_sprite \0"
406	" GL_ATI_separate_stencil \0"
407	" GL_EXT_stencil_two_side \0"
408	"\0"
409	},
410	{
411	2.1f,
412	" GL_ARB_pixel_buffer_object \0"
413	" GL_EXT_texture_sRGB \0"
414	"\0"
415	},
416	{
417	3.0f,
418	" GL_ARB_framebuffer_object \0"
419	" GL_ARB_map_buffer_range \0"
420	" GL_ARB_vertex_array_object \0"
421	"\0"
422	},
423	{
424	3.1f,
425	" GL_ARB_copy_buffer \0"
426	" GL_ARB_uniform_buffer_object \0"
427	"\0"
428	},
429	{
430	3.2f,
431	" GL_ARB_vertex_array_bgra \0"
432	" GL_ARB_draw_elements_base_vertex \0"
433	" GL_ARB_fragment_coord_conventions \0"
434	" GL_ARB_provoking_vertex \0"
435	" GL_ARB_seamless_cube_map \0"
436	" GL_ARB_texture_multisample \0"
437	" GL_ARB_depth_clamp \0"
438	" GL_ARB_sync \0"
439	" GL_ARB_geometry_shader4 \0" /??/
440	"\0"
441	},
442	{
443	3.3f,
444	" GL_ARB_blend_func_extended \0"
445	" GL_ARB_sampler_objects \0"
446	" GL_ARB_explicit_attrib_location \0"
447	" GL_ARB_occlusion_query2 \0"
448	" GL_ARB_shader_bit_encoding \0"
449	" GL_ARB_texture_rgb10_a2ui \0"
450	" GL_ARB_texture_swizzle \0"
451	" GL_ARB_timer_query \0"
452	" GL_ARB_vertex_type_2_10_10_10_rev \0"
453	"\0"
454	},
455	{
456	4.0f,
457	" GL_ARB_texture_query_lod \0"
458	" GL_ARB_draw_indirect \0"
459	" GL_ARB_gpu_shader5 \0"
460	" GL_ARB_gpu_shader_fp64 \0"
461	" GL_ARB_shader_subroutine \0"
462	" GL_ARB_tessellation_shader \0"
463	" GL_ARB_texture_buffer_object_rgb32 \0"
464	" GL_ARB_texture_cube_map_array \0"
465	" GL_ARB_texture_gather \0"
466	" GL_ARB_transform_feedback2 \0"
467	" GL_ARB_transform_feedback3 \0"
468	"\0"
469	},
470	{
471	4.1f,
472	" GL_ARB_ES2_compatibility \0"
473	" GL_ARB_get_program_binary \0"
474	" GL_ARB_separate_shader_objects \0"
475	" GL_ARB_shader_precision \0"
476	" GL_ARB_vertex_attrib_64bit \0"
477	" GL_ARB_viewport_array \0"
478	"\0"
479	}
480	};
481
482	uint32_t cPromoted = 0;
483	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
484	{
485	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
486	while (*pszExt)
487	{
488	# ifdef VBOX_STRICT
489	size_t cchExt = strlen(pszExt);
490	Assert(cchExt > 3);
491	Assert(pszExt[0] == ' ');
492	Assert(pszExt[1] != ' ');
493	Assert(pszExt[cchExt - 2] != ' ');
494	Assert(pszExt[cchExt - 1] == ' ');
495	# endif
496
497	if (strstr(*ppszExtensions, pszExt) == NULL)
498	{
499	if (cPromoted++ == 0)
500	{
501	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
502	AssertRCReturn(rc, rc);
503	}
504
505	rc = RTStrAAppend(ppszExtensions, pszExt);
506	AssertRCReturn(rc, rc);
507	}
508
509	pszExt = strchr(pszExt, '\0') + 1;
510	}
511	}
512	#endif
513
514	return VINF_SUCCESS;
515	}
516
517	/** Check whether this is an Intel GL driver.
518	*
519	* @returns true if this seems to be some Intel graphics.
520	*/
521	static bool vmsvga3dIsVendorIntel(void)
522	{
523	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
524	}
525
526	/**
527	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
528	*/
529	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
530	{
531	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
532	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
533	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
534	#else
535	NOREF(pThis);
536	NOREF(fOtherProfile);
537	#endif
538	}
539
540
541	/**
542	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
543	*/
544	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
545	char *pszBuf, size_t cbBuf, bool fOtherProfile)
546	{
547	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
548	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
549	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
550	while (*pszCur == ' ')
551	pszCur++;
552	if (!*pszCur)
553	return false;
554
555	const char *pszEnd = strchr(pszCur, ' ');
556	AssertReturn(pszEnd, false);
557	size_t cch = pszEnd - pszCur;
558	if (cch < cbBuf)
559	{
560	memcpy(pszBuf, pszCur, cch);
561	pszBuf[cch] = '\0';
562	}
563	else if (cbBuf > 0)
564	{
565	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
566	pszBuf[cbBuf - 1] = '\0';
567	}
568
569	ppvEnumCtx = (void )pszEnd;
570	return true;
571	}
572
573
574	/**
575	* Initializes the VMSVGA3D state during VGA device construction.
576	*
577	* Failure are generally not fatal, 3D support will just be disabled.
578	*
579	* @returns VBox status code.
580	* @param pThis The VGA device state where svga.p3dState will be modified.
581	*/
582	int vmsvga3dInit(PVGASTATE pThis)
583	{
584	AssertCompile(GL_TRUE == 1);
585	AssertCompile(GL_FALSE == 0);
586
587	/*
588	* Load and resolve imports from the external shared libraries.
589	*/
590	RTERRINFOSTATIC ErrInfo;
591	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
592	if (RT_FAILURE(rc))
593	{
594	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
595	return rc;
596	}
597	#ifdef RT_OS_DARWIN
598	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
599	if (RT_FAILURE(rc))
600	{
601	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
602	return rc;
603	}
604	#endif
605
606	/*
607	* Allocate the state.
608	*/
609	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
610	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
611
612	#ifdef RT_OS_WINDOWS
613	/* Create event semaphore and async IO thread. */
614	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
615	rc = RTSemEventCreate(&pState->WndRequestSem);
616	if (RT_SUCCESS(rc))
617	{
618	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
619	"VMSVGA3DWND");
620	if (RT_SUCCESS(rc))
621	return VINF_SUCCESS;
622
623	/* bail out. */
624	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
625	RTSemEventDestroy(pState->WndRequestSem);
626	}
627	else
628	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
629	RTMemFree(pThis->svga.p3dState);
630	pThis->svga.p3dState = NULL;
631	return rc;
632	#else
633	return VINF_SUCCESS;
634	#endif
635	}
636
637	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
638	{
639	/* A strict approach to get a proc address as recommended by Khronos:
640	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
641	* - "If the function is an extension, we need to check to see if the extension is supported."
642	*/
643
644	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
645	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
646	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
647	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
648	} while(0)
649
650	/* Get an optional function address. LogRel on failure. */
651	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
652	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
653	if (!pState->ext.ProcName) \
654	{ \
655	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
656	AssertFailed(); \
657	} \
658	} while(0)
659
660	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
661	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
662	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
663	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
664	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
665	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
666	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
667	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
668	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
669	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
670	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
671	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
672	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
673	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
674	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
675	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
676	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
677	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
678	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
679	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
680	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
681	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
682	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
683	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
684	/* glGetProgramivARB determines implementation limits for the program
685	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
686	* It differs from glGetProgramiv, which returns a parameter from a program object.
687	*/
688	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
689	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
690	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
691	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
692	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
693	#endif
694	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
695	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
696	#endif
697
698	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
699	if ( pState->rsGLVersion >= 3.0f
700	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
701	{
702	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
703	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
704	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
705	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
706	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
707	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
708	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
709	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
710	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
711	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
712	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
713	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
714	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
715	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
716	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
717	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
718	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
719	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
720	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
721	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
722	}
723
724	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
725	if (pState->rsGLVersion >= 3.1f)
726	{
727	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
728	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
729	}
730	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
731	{
732	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
733	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
734	}
735	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
736	{
737	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
738	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
739	}
740
741	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
742	if ( pState->rsGLVersion >= 3.2f
743	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
744	{
745	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
746	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
747	}
748
749	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
750	if ( pState->rsGLVersion >= 3.2f
751	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
752	{
753	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
754	}
755
756	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
757	if (pState->rsGLVersion >= 3.3f)
758	{
759	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
760	}
761	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
762	{
763	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
764	}
765
766	#undef GLGETPROCOPT_
767	#undef GLGETPROC_
768
769	return VINF_SUCCESS;
770	}
771
772
773	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
774	int vmsvga3dPowerOn(PVGASTATE pThis)
775	{
776	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
777	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
778	PVMSVGA3DCONTEXT pContext;
779	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
780	PVMSVGA3DCONTEXT pOtherCtx;
781	#endif
782	int rc;
783
784	if (pState->rsGLVersion != 0.0)
785	return VINF_SUCCESS; /* already initialized (load state) */
786
787	/*
788	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
789	*/
790	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
791	AssertRCReturn(rc, rc);
792
793	pContext = pState->papContexts[1];
794	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
795
796	LogRel(("VMSVGA3d: OpenGL version: %s\n"
797	"VMSVGA3d: OpenGL Vendor: %s\n"
798	"VMSVGA3d: OpenGL Renderer: %s\n"
799	"VMSVGA3d: OpenGL shader language version: %s\n",
800	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
801	glGetString(GL_SHADING_LANGUAGE_VERSION)));
802
803	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
804	AssertRCReturn(rc, rc);
805	vmsvga3dLogRelExtensions("", pState->pszExtensions);
806
807	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
808
809
810	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
811	/*
812	* Get the extension list for the alternative profile so we can better
813	* figure out the shader model and stuff.
814	*/
815	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
816	AssertLogRelRCReturn(rc, rc);
817	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
818
819	pOtherCtx = pState->papContexts[2];
820	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
821
822	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
823	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
824	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
825	"VMSVGA3d: Alternative 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->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
830	AssertRCReturn(rc, rc);
831	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
832
833	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
834
835	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
836	#else
837	pState->pszOtherExtensions = (char *)"";
838	pState->rsOtherGLVersion = pState->rsGLVersion;
839	#endif
840
841	/*
842	* Resolve GL function pointers and store them in pState->ext.
843	*/
844	rc = vmsvga3dLoadGLFunctions(pState);
845	if (RT_FAILURE(rc))
846	{
847	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
848	return rc;
849	}
850
851	/*
852	* Initialize the capabilities with sensible defaults.
853	*/
854	pState->caps.maxActiveLights = 1;
855	pState->caps.maxTextures = 1;
856	pState->caps.maxClipDistances = 4;
857	pState->caps.maxColorAttachments = 1;
858	pState->caps.maxRectangleTextureSize = 2048;
859	pState->caps.maxTextureAnisotropy = 2;
860	pState->caps.maxVertexShaderInstructions = 1024;
861	pState->caps.maxFragmentShaderInstructions = 1024;
862	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
863	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
864	pState->caps.flPointSize[0] = 1;
865	pState->caps.flPointSize[1] = 1;
866
867	/*
868	* Query capabilities
869	*/
870	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
871	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
872	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
873	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
874	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
875	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
876	#else
877	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
878	#endif
879	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
880	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
881	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
882	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
883
884	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
885	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
886	&pState->caps.maxFragmentShaderTemps));
887	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
888	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
889	&pState->caps.maxFragmentShaderInstructions));
890	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
891	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
892	&pState->caps.maxVertexShaderTemps));
893	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
894	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
895	&pState->caps.maxVertexShaderInstructions));
896
897	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
898
899	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
900	* ARB Assembly Language
901	* These are done through testing the presence of extensions. You should test them in this order:
902	* GL_NV_gpu_program4: SM 4.0 or better.
903	* GL_NV_vertex_program3: SM 3.0 or better.
904	* GL_ARB_fragment_program: SM 2.0 or better.
905	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
906	*
907	*/
908	/** @todo distinguish between vertex and pixel shaders??? */
909	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
910	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
911	if (v >= 3.30f)
912	{
913	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
914	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
915	}
916	else
917	if (v >= 1.20f)
918	{
919	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
920	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
921	}
922	else
923	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
924	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
925	{
926	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
927	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
928	}
929	else
930	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
931	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
932	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
933	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
934	)
935	{
936	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
937	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
938	}
939	else
940	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
941	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
942	{
943	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
944	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
945	}
946	else
947	{
948	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
949	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
950	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
951	}
952
953	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
954	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
955	{
956	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
957	}
958
959	/*
960	* Tweak capabilities.
961	*/
962	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
963	if ( pState->caps.maxVertexShaderTemps < 32
964	&& vmsvga3dIsVendorIntel())
965	pState->caps.maxVertexShaderTemps = 32;
966
967	#if 0
968	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
969	SVGA3D_DEVCAP_QUERY_TYPES = 15,
970	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
971	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
972	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
973	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
974	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
975	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
976	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
977	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
978	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
979	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
980	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
981	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
982	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
983	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
984	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
985	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
986	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
987	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
988	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
989	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
990	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
991	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
992	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
993	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
994	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
995	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
996	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
997	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
998	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
999	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1000	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1001	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1002	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1003	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1004	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1005	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1006	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1007	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1008	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1009	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1010	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1011	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1012	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1013	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1014	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1015	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1016	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1017	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1018	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1019	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1020	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1021	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1022	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1023	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1024	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1025	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1026	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1027	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1028	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1029	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1030	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1031	#endif
1032
1033	LogRel(("VMSVGA3d: Capabilities:\n"));
1034	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1035	pState->caps.maxActiveLights, pState->caps.maxTextures));
1036	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1037	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1038	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1039	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1040	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1041	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1042	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1043	pState->caps.maxFragmentShaderTemps,
1044	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1045	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1046	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1047	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1048
1049
1050	/* Initialize the shader library. */
1051	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1052	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1053	rc = ShaderInitLib(&pState->ShaderIf);
1054	AssertRC(rc);
1055
1056	/* Cleanup */
1057	rc = vmsvga3dContextDestroy(pThis, 1);
1058	AssertRC(rc);
1059	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1060	rc = vmsvga3dContextDestroy(pThis, 2);
1061	AssertRC(rc);
1062	#endif
1063
1064	if ( pState->rsGLVersion < 3.0
1065	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1066	{
1067	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1068	return VERR_NOT_IMPLEMENTED;
1069	}
1070
1071	return VINF_SUCCESS;
1072	}
1073
1074	int vmsvga3dReset(PVGASTATE pThis)
1075	{
1076	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1077	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1078
1079	/* Destroy all leftover surfaces. */
1080	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1081	{
1082	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1083	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1084	}
1085
1086	/* Destroy all leftover contexts. */
1087	for (uint32_t i = 0; i < pState->cContexts; i++)
1088	{
1089	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1090	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1091	}
1092
1093	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1094	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1095
1096	return VINF_SUCCESS;
1097	}
1098
1099	int vmsvga3dTerminate(PVGASTATE pThis)
1100	{
1101	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1102	AssertReturn(pState, VERR_WRONG_ORDER);
1103	int rc;
1104
1105	rc = vmsvga3dReset(pThis);
1106	AssertRCReturn(rc, rc);
1107
1108	/* Terminate the shader library. */
1109	rc = ShaderDestroyLib();
1110	AssertRC(rc);
1111
1112	#ifdef RT_OS_WINDOWS
1113	/* Terminate the window creation thread. */
1114	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1115	AssertRCReturn(rc, rc);
1116
1117	RTSemEventDestroy(pState->WndRequestSem);
1118	#elif defined(RT_OS_DARWIN)
1119
1120	#elif defined(RT_OS_LINUX)
1121	/* signal to the thread that it is supposed to exit */
1122	pState->bTerminate = true;
1123	/* wait for it to terminate */
1124	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1125	AssertRC(rc);
1126	XCloseDisplay(pState->display);
1127	#endif
1128
1129	RTStrFree(pState->pszExtensions);
1130	pState->pszExtensions = NULL;
1131	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1132	RTStrFree(pState->pszOtherExtensions);
1133	#endif
1134	pState->pszOtherExtensions = NULL;
1135
1136	return VINF_SUCCESS;
1137	}
1138
1139
1140	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1141	{
1142	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1143	* redraw it. */
1144
1145	#ifdef RT_OS_DARWIN
1146	RT_NOREF(pOldViewport);
1147	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1148	if ( pState
1149	&& idScreen == 0
1150	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1151	{
1152	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1153	}
1154	#else
1155	RT_NOREF(pThis, idScreen, pOldViewport);
1156	#endif
1157	}
1158
1159
1160	/**
1161	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1162	* given surface format capability.
1163	*
1164	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1165	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1166	*
1167	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1168	* of implicit guest expectations:
1169	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1170	*/
1171	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1172	{
1173	uint32_t result = 0;
1174
1175	/** @todo missing:
1176	*
1177	* SVGA3DFORMAT_OP_PIXELSIZE
1178	*/
1179
1180	switch (idx3dCaps)
1181	{
1182	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1183	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1184	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1185	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1186	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1187	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1188	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1189	break;
1190
1191	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1192	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1193	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1194	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1195	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1196	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1197	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1198	break;
1199	}
1200
1201	/** @todo check hardware caps! */
1202	switch (idx3dCaps)
1203	{
1204	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1205	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1206	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1207	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1208	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1209	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1210	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1211	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1212	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1213	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1214	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1215	result \|= SVGA3DFORMAT_OP_TEXTURE
1216	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1217	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1218	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1219	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1220	\| SVGA3DFORMAT_OP_CUBETEXTURE
1221	\| SVGA3DFORMAT_OP_SRGBREAD
1222	\| SVGA3DFORMAT_OP_SRGBWRITE;
1223	break;
1224
1225	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1226	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1227	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1228	// case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1229	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1230	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1231	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1232	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1233	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1234	break;
1235
1236	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1237	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1238	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1239	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1240	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1241	result \|= SVGA3DFORMAT_OP_TEXTURE
1242	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1243	\| SVGA3DFORMAT_OP_CUBETEXTURE
1244	\| SVGA3DFORMAT_OP_SRGBREAD;
1245	break;
1246
1247	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1248	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1249	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1250	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1251	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1252	break;
1253
1254	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1255	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1256	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1257	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1258	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1259	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1260	result \|= SVGA3DFORMAT_OP_TEXTURE
1261	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1262	\| SVGA3DFORMAT_OP_CUBETEXTURE
1263	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1264	break;
1265
1266	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1267	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1268	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1269	result \|= SVGA3DFORMAT_OP_TEXTURE
1270	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1271	\| SVGA3DFORMAT_OP_CUBETEXTURE
1272	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1273	break;
1274
1275	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1276	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1277	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1278	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1279	break;
1280	}
1281	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1282
1283	return result;
1284	}
1285
1286	#if 0 /* unused */
1287	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1288	{
1289	RT_NOREF(pState3D, idx3dCaps);
1290
1291	/** @todo test this somehow */
1292	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1293
1294	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1295	return result;
1296	}
1297	#endif
1298
1299
1300	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1301	{
1302	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1303	AssertReturn(pState, VERR_NO_MEMORY);
1304	int rc = VINF_SUCCESS;
1305
1306	*pu32Val = 0;
1307
1308	/*
1309	* The capabilities access by current (2015-03-01) linux sources (gallium,
1310	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1311	* aren't access.
1312	*/
1313
1314	switch (idx3dCaps)
1315	{
1316	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1317	case SVGA3D_DEVCAP_3D:
1318	pu32Val = 1; / boolean? */
1319	break;
1320
1321	case SVGA3D_DEVCAP_MAX_LIGHTS:
1322	*pu32Val = pState->caps.maxActiveLights;
1323	break;
1324
1325	case SVGA3D_DEVCAP_MAX_TEXTURES:
1326	*pu32Val = pState->caps.maxTextures;
1327	break;
1328
1329	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1330	*pu32Val = pState->caps.maxClipDistances;
1331	break;
1332
1333	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1334	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1335	*pu32Val = pState->caps.vertexShaderVersion;
1336	break;
1337
1338	case SVGA3D_DEVCAP_VERTEX_SHADER:
1339	/* boolean? */
1340	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1341	break;
1342
1343	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1344	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1345	*pu32Val = pState->caps.fragmentShaderVersion;
1346	break;
1347
1348	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1349	/* boolean? */
1350	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1351	break;
1352
1353	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1354	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1355	/* Must be obsolete by now; surface format caps specify the same thing. */
1356	rc = VERR_INVALID_PARAMETER;
1357	break;
1358
1359	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1360	break;
1361
1362	/*
1363	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1364	* return TRUE. Even on physical hardware that does not support
1365	* these formats natively, the SVGA3D device will provide an emulation
1366	* which should be invisible to the guest OS.
1367	*/
1368	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1369	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1370	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1371	*pu32Val = 1;
1372	break;
1373
1374	case SVGA3D_DEVCAP_QUERY_TYPES:
1375	break;
1376
1377	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1378	break;
1379
1380	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1381	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1382	AssertCompile(sizeof(uint32_t) == sizeof(float));
1383	(float )pu32Val = pState->caps.flPointSize[1];
1384	break;
1385
1386	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1387	/** @todo ?? */
1388	rc = VERR_INVALID_PARAMETER;
1389	break;
1390
1391	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1392	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1393	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1394	*pu32Val = pState->caps.maxRectangleTextureSize;
1395	break;
1396
1397	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1398	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1399	//*pu32Val = pCaps->MaxVolumeExtent;
1400	*pu32Val = 256;
1401	break;
1402
1403	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1404	pu32Val = 32768; / hardcoded in Wine */
1405	break;
1406
1407	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1408	//*pu32Val = pCaps->MaxTextureAspectRatio;
1409	break;
1410
1411	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1412	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1413	*pu32Val = pState->caps.maxTextureAnisotropy;
1414	break;
1415
1416	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1417	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1418	pu32Val = 0xFFFFF; / hardcoded in Wine */
1419	break;
1420
1421	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1422	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1423	*pu32Val = pState->caps.maxVertexShaderInstructions;
1424	break;
1425
1426	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1427	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1428	break;
1429
1430	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1431	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1432	*pu32Val = pState->caps.maxVertexShaderTemps;
1433	break;
1434
1435	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1436	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1437	*pu32Val = pState->caps.maxFragmentShaderTemps;
1438	break;
1439
1440	case SVGA3D_DEVCAP_TEXTURE_OPS:
1441	break;
1442
1443	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1444	break;
1445
1446	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1447	break;
1448
1449	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1450	break;
1451
1452	case SVGA3D_DEVCAP_SUPERSAMPLE:
1453	break;
1454
1455	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1456	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1457	break;
1458
1459	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1460	break;
1461
1462	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1463	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1464	*pu32Val = pState->caps.maxColorAttachments;
1465	break;
1466
1467	/*
1468	* This is the maximum number of SVGA context IDs that the guest
1469	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1470	*/
1471	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1472	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1473	break;
1474
1475	/*
1476	* This is the maximum number of SVGA surface IDs that the guest
1477	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1478	*/
1479	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1480	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1481	break;
1482
1483	#if 0 /* Appeared more recently, not yet implemented. */
1484	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1485	case SVGA3D_DEVCAP_LINE_AA:
1486	break;
1487	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1488	case SVGA3D_DEVCAP_LINE_STIPPLE:
1489	break;
1490	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1491	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1492	break;
1493	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1494	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1495	break;
1496	#endif
1497
1498	/*
1499	* Supported surface formats.
1500	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1501	*/
1502	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1503	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1504	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1505	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1506	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1507	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1508	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1509	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1510	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1511	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1512	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1513	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1514	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1515	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1516	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1517	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1518	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1519	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1520	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1521	break;
1522
1523	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1524	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1525	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1526	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1527	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1528	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1529	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1530	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1531	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1532	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1533	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1534	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1535	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1536	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1537	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1538	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1539	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1540	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1541	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1542	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1543	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1544	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1545	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1546	break;
1547
1548	/* Linux: Not referenced in current sources. */
1549	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1550	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1551	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1552	rc = VERR_INVALID_PARAMETER;
1553	*pu32Val = 0;
1554	break;
1555
1556	default:
1557	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1558	rc = VERR_INVALID_PARAMETER;
1559	break;
1560	}
1561
1562	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1563	return rc;
1564	}
1565
1566	/**
1567	* Convert SVGA format value to its OpenGL equivalent
1568	*
1569	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1570	* help from wined3dformat_from_d3dformat().
1571	*/
1572	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1573	{
1574	switch (format)
1575	{
1576	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1577	pSurface->internalFormatGL = GL_RGB8;
1578	pSurface->formatGL = GL_BGRA;
1579	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1580	break;
1581	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1582	pSurface->internalFormatGL = GL_RGBA8;
1583	pSurface->formatGL = GL_BGRA;
1584	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1585	break;
1586	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1587	pSurface->internalFormatGL = GL_RGB5;
1588	pSurface->formatGL = GL_RGB;
1589	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1590	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1591	break;
1592	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1593	pSurface->internalFormatGL = GL_RGB5;
1594	pSurface->formatGL = GL_BGRA;
1595	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1596	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1597	break;
1598	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1599	pSurface->internalFormatGL = GL_RGB5_A1;
1600	pSurface->formatGL = GL_BGRA;
1601	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1602	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1603	break;
1604	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1605	pSurface->internalFormatGL = GL_RGBA4;
1606	pSurface->formatGL = GL_BGRA;
1607	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1608	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1609	break;
1610
1611	case SVGA3D_R8G8B8A8_UNORM:
1612	pSurface->internalFormatGL = GL_RGBA8;
1613	pSurface->formatGL = GL_RGBA;
1614	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1615	break;
1616
1617	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1618	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1619	pSurface->formatGL = GL_DEPTH_COMPONENT;
1620	pSurface->typeGL = GL_UNSIGNED_INT;
1621	break;
1622	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1623	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1624	pSurface->formatGL = GL_DEPTH_COMPONENT;
1625	pSurface->typeGL = GL_UNSIGNED_SHORT;
1626	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1627	break;
1628	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1629	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1630	pSurface->formatGL = GL_DEPTH_STENCIL;
1631	pSurface->typeGL = GL_UNSIGNED_INT;
1632	break;
1633	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1634	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1635	pSurface->formatGL = GL_DEPTH_STENCIL;
1636	pSurface->typeGL = GL_UNSIGNED_SHORT;
1637	/** @todo Wine sources hints at no hw support for this, so test this one! */
1638	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1639	break;
1640	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1641	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1642	pSurface->formatGL = GL_DEPTH_COMPONENT;
1643	pSurface->typeGL = GL_UNSIGNED_INT;
1644	break;
1645
1646	/* Advanced D3D9 depth formats. */
1647	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1648	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1649	pSurface->formatGL = GL_DEPTH_COMPONENT;
1650	pSurface->typeGL = GL_FLOAT;
1651	break;
1652
1653	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1654	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1655	pSurface->formatGL = GL_DEPTH_COMPONENT;
1656	pSurface->typeGL = GL_FLOAT; /* ??? */
1657	break;
1658
1659	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1660	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1661	pSurface->formatGL = GL_DEPTH_STENCIL;
1662	pSurface->typeGL = GL_INT; /* ??? */
1663	break;
1664
1665	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1666	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1667	pSurface->formatGL = GL_RGBA; /* not used */
1668	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1669	break;
1670
1671	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1672	/* "DXT2 and DXT3 are the same from an API perspective." */
1673	RT_FALL_THRU();
1674	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1675	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1676	pSurface->formatGL = GL_RGBA; /* not used */
1677	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1678	break;
1679
1680	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1681	/* "DXT4 and DXT5 are the same from an API perspective." */
1682	RT_FALL_THRU();
1683	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1684	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1685	pSurface->formatGL = GL_RGBA; /* not used */
1686	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1687	break;
1688
1689	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1690	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1691	pSurface->formatGL = GL_LUMINANCE;
1692	pSurface->typeGL = GL_UNSIGNED_BYTE;
1693	break;
1694
1695	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1696	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1697	pSurface->formatGL = GL_LUMINANCE;
1698	pSurface->typeGL = GL_UNSIGNED_SHORT;
1699	break;
1700
1701	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1702	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1703	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1704	pSurface->typeGL = GL_UNSIGNED_BYTE;
1705	break;
1706
1707	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1708	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1709	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1710	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1711	break;
1712
1713	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1714	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1715	pSurface->formatGL = GL_ALPHA;
1716	pSurface->typeGL = GL_UNSIGNED_BYTE;
1717	break;
1718
1719	#if 0
1720
1721	/* Bump-map formats */
1722	case SVGA3D_BUMPU8V8:
1723	return D3DFMT_V8U8;
1724	case SVGA3D_BUMPL6V5U5:
1725	return D3DFMT_L6V5U5;
1726	case SVGA3D_BUMPX8L8V8U8:
1727	return D3DFMT_X8L8V8U8;
1728	case SVGA3D_BUMPL8V8U8:
1729	/* No corresponding D3D9 equivalent. */
1730	AssertFailedReturn(D3DFMT_UNKNOWN);
1731	/* signed bump-map formats */
1732	case SVGA3D_V8U8:
1733	return D3DFMT_V8U8;
1734	case SVGA3D_Q8W8V8U8:
1735	return D3DFMT_Q8W8V8U8;
1736	case SVGA3D_CxV8U8:
1737	return D3DFMT_CxV8U8;
1738	/* mixed bump-map formats */
1739	case SVGA3D_X8L8V8U8:
1740	return D3DFMT_X8L8V8U8;
1741	case SVGA3D_A2W10V10U10:
1742	return D3DFMT_A2W10V10U10;
1743	#endif
1744
1745	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1746	pSurface->internalFormatGL = GL_RGBA16F;
1747	pSurface->formatGL = GL_RGBA;
1748	#if 0 /* bird: wine uses half float, sounds correct to me... */
1749	pSurface->typeGL = GL_FLOAT;
1750	#else
1751	pSurface->typeGL = GL_HALF_FLOAT;
1752	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1753	#endif
1754	break;
1755
1756	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1757	pSurface->internalFormatGL = GL_RGBA32F;
1758	pSurface->formatGL = GL_RGBA;
1759	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1760	break;
1761
1762	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1763	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1764	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1765	pSurface->formatGL = GL_RGBA;
1766	#else
1767	pSurface->formatGL = GL_BGRA;
1768	#endif
1769	pSurface->typeGL = GL_UNSIGNED_INT;
1770	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1771	break;
1772
1773
1774	/* Single- and dual-component floating point formats */
1775	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1776	pSurface->internalFormatGL = GL_R16F;
1777	pSurface->formatGL = GL_RED;
1778	#if 0 /* bird: wine uses half float, sounds correct to me... */
1779	pSurface->typeGL = GL_FLOAT;
1780	#else
1781	pSurface->typeGL = GL_HALF_FLOAT;
1782	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1783	#endif
1784	break;
1785	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1786	pSurface->internalFormatGL = GL_R32F;
1787	pSurface->formatGL = GL_RED;
1788	pSurface->typeGL = GL_FLOAT;
1789	break;
1790	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1791	pSurface->internalFormatGL = GL_RG16F;
1792	pSurface->formatGL = GL_RG;
1793	#if 0 /* bird: wine uses half float, sounds correct to me... */
1794	pSurface->typeGL = GL_FLOAT;
1795	#else
1796	pSurface->typeGL = GL_HALF_FLOAT;
1797	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1798	#endif
1799	break;
1800	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1801	pSurface->internalFormatGL = GL_RG32F;
1802	pSurface->formatGL = GL_RG;
1803	pSurface->typeGL = GL_FLOAT;
1804	break;
1805
1806	/*
1807	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1808	* the most efficient format to use when creating new surfaces
1809	* expressly for index or vertex data.
1810	*/
1811	case SVGA3D_BUFFER:
1812	pSurface->internalFormatGL = -1;
1813	pSurface->formatGL = -1;
1814	pSurface->typeGL = -1;
1815	break;
1816
1817	#if 0
1818	return D3DFMT_UNKNOWN;
1819
1820	case SVGA3D_V16U16:
1821	return D3DFMT_V16U16;
1822	#endif
1823
1824	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1825	pSurface->internalFormatGL = GL_RG16;
1826	pSurface->formatGL = GL_RG;
1827	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1828	pSurface->typeGL = GL_UNSIGNED_INT;
1829	#else
1830	pSurface->typeGL = GL_UNSIGNED_SHORT;
1831	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1832	#endif
1833	break;
1834
1835	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1836	pSurface->internalFormatGL = GL_RGBA16;
1837	pSurface->formatGL = GL_RGBA;
1838	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1839	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1840	#else
1841	pSurface->typeGL = GL_UNSIGNED_SHORT;
1842	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1843	#endif
1844	break;
1845
1846	case SVGA3D_R8G8B8A8_SNORM:
1847	pSurface->internalFormatGL = GL_RGB8;
1848	pSurface->formatGL = GL_BGRA;
1849	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1850	AssertMsgFailed(("test me - SVGA3D_R8G8B8A8_SNORM\n"));
1851	break;
1852	case SVGA3D_R16G16_UNORM:
1853	pSurface->internalFormatGL = GL_RG16;
1854	pSurface->formatGL = GL_RG;
1855	pSurface->typeGL = GL_UNSIGNED_SHORT;
1856	AssertMsgFailed(("test me - SVGA3D_R16G16_UNORM\n"));
1857	break;
1858
1859	#if 0
1860	/* Packed Video formats */
1861	case SVGA3D_UYVY:
1862	return D3DFMT_UYVY;
1863	case SVGA3D_YUY2:
1864	return D3DFMT_YUY2;
1865
1866	/* Planar video formats */
1867	case SVGA3D_NV12:
1868	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1869
1870	/* Video format with alpha */
1871	case SVGA3D_AYUV:
1872	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1873
1874	case SVGA3D_BC4_UNORM:
1875	case SVGA3D_BC5_UNORM:
1876	/* Unknown; only in DX10 & 11 */
1877	break;
1878	#endif
1879	default:
1880	AssertMsgFailed(("Unsupported format %d\n", format));
1881	break;
1882	}
1883	}
1884
1885
1886	#if 0
1887	/**
1888	* Convert SVGA multi sample count value to its D3D equivalent
1889	*/
1890	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1891	{
1892	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1893	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1894
1895	if (multisampleCount > 16)
1896	return D3DMULTISAMPLE_NONE;
1897
1898	/** @todo exact same mapping as d3d? */
1899	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1900	}
1901	#endif
1902
1903	/**
1904	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1905	*
1906	* @param pState The VMSVGA3d state.
1907	* @param pSurface The surface being destroyed.
1908	*/
1909	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1910	{
1911	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1912	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1913
1914	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1915	{
1916	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1917	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1918	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1919	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1920	{
1921	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1922	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1923	}
1924	break;
1925
1926	case SVGA3D_SURFACE_CUBEMAP:
1927	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
1928	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1929	/* Cubemap is a texture. */
1930	case SVGA3D_SURFACE_HINT_TEXTURE:
1931	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1932	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1933	{
1934	glDeleteTextures(1, &pSurface->oglId.texture);
1935	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1936	}
1937	break;
1938
1939	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1940	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1941	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1942	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1943	{
1944	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1945	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1946	}
1947	break;
1948
1949	default:
1950	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1951	break;
1952	}
1953	}
1954
1955
1956	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1957	{
1958	for (uint32_t i = 0; i < cCopyBoxes; i++)
1959	{
1960	SVGA3dBox destBox, srcBox;
1961
1962	srcBox.x = pBox[i].srcx;
1963	srcBox.y = pBox[i].srcy;
1964	srcBox.z = pBox[i].srcz;
1965	srcBox.w = pBox[i].w;
1966	srcBox.h = pBox[i].h;
1967	srcBox.d = pBox[i].d;
1968
1969	destBox.x = pBox[i].x;
1970	destBox.y = pBox[i].y;
1971	destBox.z = pBox[i].z;
1972	destBox.w = pBox[i].w;
1973	destBox.h = pBox[i].h;
1974	destBox.d = pBox[i].d;
1975
1976	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1977	AssertRCReturn(rc, rc);
1978	}
1979	return VINF_SUCCESS;
1980	}
1981
1982
1983	/**
1984	* Save texture unpacking parameters and loads those appropriate for the given
1985	* surface.
1986	*
1987	* @param pState The VMSVGA3D state structure.
1988	* @param pContext The active context.
1989	* @param pSurface The surface.
1990	* @param pSave Where to save stuff.
1991	*/
1992	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1993	PVMSVGAPACKPARAMS pSave)
1994	{
1995	RT_NOREF(pState);
1996
1997	/*
1998	* Save (ignore errors, setting the defaults we want and avoids restore).
1999	*/
2000	pSave->iAlignment = 1;
2001	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2002	pSave->cxRow = 0;
2003	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2004
2005	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2006	pSave->cyImage = 0;
2007	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2008	Assert(pSave->cyImage == 0);
2009
2010	pSave->fSwapBytes = GL_FALSE;
2011	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2012	Assert(pSave->fSwapBytes == GL_FALSE);
2013
2014	pSave->fLsbFirst = GL_FALSE;
2015	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2016	Assert(pSave->fLsbFirst == GL_FALSE);
2017
2018	pSave->cSkipRows = 0;
2019	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2020	Assert(pSave->cSkipRows == 0);
2021
2022	pSave->cSkipPixels = 0;
2023	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2024	Assert(pSave->cSkipPixels == 0);
2025
2026	pSave->cSkipImages = 0;
2027	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2028	Assert(pSave->cSkipImages == 0);
2029
2030	VMSVGA3D_CLEAR_GL_ERRORS();
2031	#endif
2032
2033	/*
2034	* Setup unpack.
2035	*
2036	* Note! We use 1 as alignment here because we currently don't do any
2037	* aligning of line pitches anywhere.
2038	*/
2039	NOREF(pSurface);
2040	if (pSave->iAlignment != 1)
2041	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2042	if (pSave->cxRow != 0)
2043	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2044	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2045	if (pSave->cyImage != 0)
2046	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2047	if (pSave->fSwapBytes != 0)
2048	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2049	if (pSave->fLsbFirst != 0)
2050	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2051	if (pSave->cSkipRows != 0)
2052	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2053	if (pSave->cSkipPixels != 0)
2054	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2055	if (pSave->cSkipImages != 0)
2056	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2057	#endif
2058	}
2059
2060
2061	/**
2062	* Restores texture unpacking parameters.
2063	*
2064	* @param pState The VMSVGA3D state structure.
2065	* @param pContext The active context.
2066	* @param pSurface The surface.
2067	* @param pSave Where stuff was saved.
2068	*/
2069	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2070	PCVMSVGAPACKPARAMS pSave)
2071	{
2072	RT_NOREF(pState, pSurface);
2073
2074	if (pSave->iAlignment != 1)
2075	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2076	if (pSave->cxRow != 0)
2077	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2078	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2079	if (pSave->cyImage != 0)
2080	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2081	if (pSave->fSwapBytes != 0)
2082	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2083	if (pSave->fLsbFirst != 0)
2084	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2085	if (pSave->cSkipRows != 0)
2086	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2087	if (pSave->cSkipPixels != 0)
2088	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2089	if (pSave->cSkipImages != 0)
2090	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2091	#endif
2092	}
2093
2094	/**
2095	* Create D3D/OpenGL texture object for the specified surface.
2096	*
2097	* Surfaces are created when needed.
2098	*
2099	* @param pState The VMSVGA3d state.
2100	* @param pContext The context.
2101	* @param idAssociatedContext Probably the same as pContext->id.
2102	* @param pSurface The surface to create the texture for.
2103	*/
2104	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2105	PVMSVGA3DSURFACE pSurface)
2106	{
2107	RT_NOREF(idAssociatedContext);
2108
2109	LogFunc(("sid=%x\n", pSurface->id));
2110
2111	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2112
2113	/* Fugure out what kind of texture we are creating. */
2114	GLenum binding;
2115	GLenum target;
2116	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2117	{
2118	Assert(pSurface->cFaces == 6);
2119
2120	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2121	target = GL_TEXTURE_CUBE_MAP;
2122	}
2123	else
2124	{
2125	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2126	{
2127	binding = GL_TEXTURE_BINDING_3D;
2128	target = GL_TEXTURE_3D;
2129	}
2130	else
2131	{
2132	Assert(pSurface->cFaces == 1);
2133
2134	binding = GL_TEXTURE_BINDING_2D;
2135	target = GL_TEXTURE_2D;
2136	}
2137	}
2138
2139	/* All textures are created in the SharedCtx. */
2140	uint32_t idPrevCtx = pState->idActiveContext;
2141	pContext = &pState->SharedCtx;
2142	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2143
2144	glGenTextures(1, &pSurface->oglId.texture);
2145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2146
2147	GLint activeTexture = 0;
2148	glGetIntegerv(binding, &activeTexture);
2149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2150
2151	/* Must bind texture to the current context in order to change it. */
2152	glBindTexture(target, pSurface->oglId.texture);
2153	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2154
2155	/* Set the unpacking parameters. */
2156	VMSVGAPACKPARAMS SavedParams;
2157	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2158
2159	/** @todo Set the mip map generation filter settings. */
2160
2161	/* Set the mipmap base and max level parameters. */
2162	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2164	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2165	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2166
2167	if (pSurface->fDirty)
2168	LogFunc(("sync dirty texture\n"));
2169
2170	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2171	if (target == GL_TEXTURE_3D)
2172	{
2173	for (uint32_t i = 0; i < numMipLevels; ++i)
2174	{
2175	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2176	* exposing random host memory to the guest and helps a with the fedora 21 surface
2177	* corruption issues (launchpad, background, search field, login).
2178	*/
2179	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2180
2181	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2182	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2183
2184	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2185	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2186	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2187	{
2188	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2189	i,
2190	pSurface->internalFormatGL,
2191	pMipLevel->mipmapSize.width,
2192	pMipLevel->mipmapSize.height,
2193	pMipLevel->mipmapSize.depth,
2194	0,
2195	pMipLevel->cbSurface,
2196	pMipLevel->pSurfaceData);
2197	}
2198	else
2199	{
2200	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2201	i,
2202	pSurface->internalFormatGL,
2203	pMipLevel->mipmapSize.width,
2204	pMipLevel->mipmapSize.height,
2205	pMipLevel->mipmapSize.depth,
2206	0, /* border */
2207	pSurface->formatGL,
2208	pSurface->typeGL,
2209	pMipLevel->pSurfaceData);
2210	}
2211	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2212
2213	pMipLevel->fDirty = false;
2214	}
2215	}
2216	else if (target == GL_TEXTURE_CUBE_MAP)
2217	{
2218	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2219	{
2220	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2221
2222	for (uint32_t i = 0; i < numMipLevels; ++i)
2223	{
2224	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2225	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2226	Assert(pMipLevel->mipmapSize.depth == 1);
2227
2228	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2229	iFace, i, pMipLevel->fDirty));
2230
2231	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2232	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2233	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2234	{
2235	pState->ext.glCompressedTexImage2D(Face,
2236	i,
2237	pSurface->internalFormatGL,
2238	pMipLevel->mipmapSize.width,
2239	pMipLevel->mipmapSize.height,
2240	0,
2241	pMipLevel->cbSurface,
2242	pMipLevel->pSurfaceData);
2243	}
2244	else
2245	{
2246	glTexImage2D(Face,
2247	i,
2248	pSurface->internalFormatGL,
2249	pMipLevel->mipmapSize.width,
2250	pMipLevel->mipmapSize.height,
2251	0,
2252	pSurface->formatGL,
2253	pSurface->typeGL,
2254	pMipLevel->pSurfaceData);
2255	}
2256	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2257
2258	pMipLevel->fDirty = false;
2259	}
2260	}
2261	}
2262	else if (target == GL_TEXTURE_2D)
2263	{
2264	for (uint32_t i = 0; i < numMipLevels; ++i)
2265	{
2266	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2267	* exposing random host memory to the guest and helps a with the fedora 21 surface
2268	* corruption issues (launchpad, background, search field, login).
2269	*/
2270	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2271	Assert(pMipLevel->mipmapSize.depth == 1);
2272
2273	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2274	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2275
2276	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2277	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2278	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2279	{
2280	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2281	i,
2282	pSurface->internalFormatGL,
2283	pMipLevel->mipmapSize.width,
2284	pMipLevel->mipmapSize.height,
2285	0,
2286	pMipLevel->cbSurface,
2287	pMipLevel->pSurfaceData);
2288	}
2289	else
2290	{
2291	glTexImage2D(GL_TEXTURE_2D,
2292	i,
2293	pSurface->internalFormatGL,
2294	pMipLevel->mipmapSize.width,
2295	pMipLevel->mipmapSize.height,
2296	0,
2297	pSurface->formatGL,
2298	pSurface->typeGL,
2299	pMipLevel->pSurfaceData);
2300	}
2301	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2302
2303	pMipLevel->fDirty = false;
2304	}
2305	}
2306
2307	pSurface->fDirty = false;
2308
2309	/* Restore unpacking parameters. */
2310	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2311
2312	/* Restore the old active texture. */
2313	glBindTexture(target, activeTexture);
2314	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2315
2316	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2317	pSurface->targetGL = target;
2318	pSurface->bindingGL = binding;
2319
2320	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2321	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2322	return VINF_SUCCESS;
2323	}
2324
2325
2326	/**
2327	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2328	*
2329	* @returns VBox status code.
2330	* @param pThis The VGA device instance.
2331	* @param pState The VMSVGA3d state.
2332	* @param pDstSurface The destination host surface.
2333	* @param uDstFace The destination face (valid).
2334	* @param uDstMipmap The destination mipmap level (valid).
2335	* @param pDstBox The destination box.
2336	* @param pSrcSurface The source host surface.
2337	* @param uSrcFace The destination face (valid).
2338	* @param uSrcMipmap The source mimap level (valid).
2339	* @param pSrcBox The source box.
2340	* @param enmMode The strecht blt mode .
2341	* @param pContext The VMSVGA3d context (already current for OGL).
2342	*/
2343	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2344	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2345	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2346	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2347	{
2348	RT_NOREF(pThis);
2349
2350	/* Activate the read and draw framebuffer objects. */
2351	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2352	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2353	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2355
2356	/* Bind the source and destination objects to the right place. */
2357	GLenum textarget;
2358	if (pSrcSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2359	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2360	else
2361	textarget = GL_TEXTURE_2D;
2362	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2363	pSrcSurface->oglId.texture, uSrcMipmap);
2364	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2365
2366	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2367	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2368	else
2369	textarget = GL_TEXTURE_2D;
2370	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2371	pDstSurface->oglId.texture, uDstMipmap);
2372	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2373
2374	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2375	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2376	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2377	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2378	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2379
2380	pState->ext.glBlitFramebuffer(pSrcBox->x,
2381	pSrcBox->y,
2382	pSrcBox->x + pSrcBox->w, /* exclusive. */
2383	pSrcBox->y + pSrcBox->h,
2384	pDstBox->x,
2385	pDstBox->y,
2386	pDstBox->x + pDstBox->w, /* exclusive. */
2387	pDstBox->y + pDstBox->h,
2388	GL_COLOR_BUFFER_BIT,
2389	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2391
2392	/* Reset the frame buffer association */
2393	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2394	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2395
2396	return VINF_SUCCESS;
2397	}
2398
2399	/**
2400	* Save texture packing parameters and loads those appropriate for the given
2401	* surface.
2402	*
2403	* @param pState The VMSVGA3D state structure.
2404	* @param pContext The active context.
2405	* @param pSurface The surface.
2406	* @param pSave Where to save stuff.
2407	*/
2408	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2409	PVMSVGAPACKPARAMS pSave)
2410	{
2411	RT_NOREF(pState);
2412	/*
2413	* Save (ignore errors, setting the defaults we want and avoids restore).
2414	*/
2415	pSave->iAlignment = 1;
2416	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2417	pSave->cxRow = 0;
2418	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2419
2420	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2421	pSave->cyImage = 0;
2422	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2423	Assert(pSave->cyImage == 0);
2424
2425	pSave->fSwapBytes = GL_FALSE;
2426	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2427	Assert(pSave->fSwapBytes == GL_FALSE);
2428
2429	pSave->fLsbFirst = GL_FALSE;
2430	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2431	Assert(pSave->fLsbFirst == GL_FALSE);
2432
2433	pSave->cSkipRows = 0;
2434	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2435	Assert(pSave->cSkipRows == 0);
2436
2437	pSave->cSkipPixels = 0;
2438	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2439	Assert(pSave->cSkipPixels == 0);
2440
2441	pSave->cSkipImages = 0;
2442	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2443	Assert(pSave->cSkipImages == 0);
2444
2445	VMSVGA3D_CLEAR_GL_ERRORS();
2446	#endif
2447
2448	/*
2449	* Setup unpack.
2450	*
2451	* Note! We use 1 as alignment here because we currently don't do any
2452	* aligning of line pitches anywhere.
2453	*/
2454	NOREF(pSurface);
2455	if (pSave->iAlignment != 1)
2456	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2457	if (pSave->cxRow != 0)
2458	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2459	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2460	if (pSave->cyImage != 0)
2461	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2462	if (pSave->fSwapBytes != 0)
2463	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2464	if (pSave->fLsbFirst != 0)
2465	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2466	if (pSave->cSkipRows != 0)
2467	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2468	if (pSave->cSkipPixels != 0)
2469	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2470	if (pSave->cSkipImages != 0)
2471	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2472	#endif
2473	}
2474
2475
2476	/**
2477	* Restores texture packing parameters.
2478	*
2479	* @param pState The VMSVGA3D state structure.
2480	* @param pContext The active context.
2481	* @param pSurface The surface.
2482	* @param pSave Where stuff was saved.
2483	*/
2484	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2485	PCVMSVGAPACKPARAMS pSave)
2486	{
2487	RT_NOREF(pState, pSurface);
2488	if (pSave->iAlignment != 1)
2489	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2490	if (pSave->cxRow != 0)
2491	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2492	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2493	if (pSave->cyImage != 0)
2494	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2495	if (pSave->fSwapBytes != 0)
2496	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2497	if (pSave->fLsbFirst != 0)
2498	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2499	if (pSave->cSkipRows != 0)
2500	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2501	if (pSave->cSkipPixels != 0)
2502	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2503	if (pSave->cSkipImages != 0)
2504	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2505	#endif
2506	}
2507
2508
2509	/**
2510	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2511	*
2512	* @returns Failure status code or @a rc.
2513	* @param pThis The VGA device instance data.
2514	* @param pState The VMSVGA3d state.
2515	* @param pSurface The host surface.
2516	* @param pMipLevel Mipmap level. The caller knows it already.
2517	* @param uHostFace The host face (valid).
2518	* @param uHostMipmap The host mipmap level (valid).
2519	* @param GuestPtr The guest pointer.
2520	* @param cbGuestPitch The guest pitch.
2521	* @param transfer The transfer direction.
2522	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2523	* @param pContext The context (for OpenGL).
2524	* @param rc The current rc for all boxes.
2525	* @param iBox The current box number (for Direct 3D).
2526	*/
2527	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2528	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2529	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2530	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2531	{
2532	RT_NOREF(iBox);
2533
2534	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2535	{
2536	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2537	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2538	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2539	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2540	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2541	case SVGA3D_SURFACE_HINT_TEXTURE:
2542	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2543	{
2544	uint32_t cbSurfacePitch;
2545	uint8_t *pDoubleBuffer;
2546	uint32_t offHst;
2547
2548	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2549	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2550	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2551	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2552
2553	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2554	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2555	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2556	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2557
2558	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2559	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2560	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2561
2562	GLenum texImageTarget;
2563	if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2564	{
2565	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2566	}
2567	else
2568	{
2569	Assert(pSurface->targetGL == GL_TEXTURE_2D);
2570	texImageTarget = GL_TEXTURE_2D;
2571	}
2572
2573	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2574	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2575
2576	if (transfer == SVGA3D_READ_HOST_VRAM)
2577	{
2578	GLint activeTexture;
2579
2580	/* Must bind texture to the current context in order to read it. */
2581	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2582	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2583
2584	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2585	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2586
2587	/* Set row length and alignment of the input data. */
2588	VMSVGAPACKPARAMS SavedParams;
2589	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2590
2591	glGetTexImage(texImageTarget,
2592	uHostMipmap,
2593	pSurface->formatGL,
2594	pSurface->typeGL,
2595	pDoubleBuffer);
2596	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2597
2598	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2599
2600	/* Restore the old active texture. */
2601	glBindTexture(pSurface->targetGL, activeTexture);
2602	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2603
2604	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2605	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2606	}
2607	else
2608	{
2609	/* The buffer will contain only the copied rectangle. */
2610	offHst = 0;
2611	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2612	}
2613
2614	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2615
2616	rc = vmsvgaGMRTransfer(pThis,
2617	transfer,
2618	pDoubleBuffer,
2619	pMipLevel->cbSurface,
2620	offHst,
2621	cbSurfacePitch,
2622	GuestPtr,
2623	offGst,
2624	cbGuestPitch,
2625	cBlocksX * pSurface->cbBlock,
2626	cBlocksY);
2627	AssertRC(rc);
2628
2629	/* Update the opengl surface data. */
2630	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2631	{
2632	GLint activeTexture = 0;
2633	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2634	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2635
2636	/* Must bind texture to the current context in order to change it. */
2637	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2638	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2639
2640	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2641
2642	/* Set row length and alignment of the input data. */
2643	VMSVGAPACKPARAMS SavedParams;
2644	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2645
2646	glTexSubImage2D(texImageTarget,
2647	uHostMipmap,
2648	u32HostBlockX,
2649	u32HostBlockY,
2650	cBlocksX,
2651	cBlocksY,
2652	pSurface->formatGL,
2653	pSurface->typeGL,
2654	pDoubleBuffer);
2655	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2656
2657	/* Restore old values. */
2658	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2659
2660	/* Restore the old active texture. */
2661	glBindTexture(pSurface->targetGL, activeTexture);
2662	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2663	}
2664
2665	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2666
2667	/* Free the double buffer. */
2668	RTMemFree(pDoubleBuffer);
2669	break;
2670	}
2671
2672	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2673	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2674	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2675	{
2676	/* Buffers are uncompressed. */
2677	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2678
2679	/* Caller already clipped pBox and buffers are 1-dimensional. */
2680	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2681
2682	VMSVGA3D_CLEAR_GL_ERRORS();
2683	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2684	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2685	{
2686	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2687	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2688	if (RT_LIKELY(pbData != NULL))
2689	{
2690	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2691	GLint cbStrictBufSize;
2692	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2693	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2694	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2695	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2696	#endif
2697	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2698	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2699	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2700	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2701
2702	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2703
2704	rc = vmsvgaGMRTransfer(pThis,
2705	transfer,
2706	pbData,
2707	pMipLevel->cbSurface,
2708	offHst,
2709	pMipLevel->cbSurfacePitch,
2710	GuestPtr,
2711	pBox->srcx * pSurface->cbBlock,
2712	cbGuestPitch,
2713	pBox->w * pSurface->cbBlock,
2714	pBox->h);
2715	AssertRC(rc);
2716
2717	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2718
2719	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2720	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2721	}
2722	else
2723	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2724	}
2725	else
2726	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2727	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2728	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2729	break;
2730	}
2731
2732	default:
2733	AssertFailed();
2734	break;
2735	}
2736
2737	return rc;
2738	}
2739
2740	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2741	{
2742	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2743	PVMSVGA3DSURFACE pSurface;
2744	int rc = VINF_SUCCESS;
2745	PVMSVGA3DCONTEXT pContext;
2746	uint32_t cid;
2747	GLint activeTexture = 0;
2748
2749	AssertReturn(pState, VERR_NO_MEMORY);
2750
2751	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2752	AssertRCReturn(rc, rc);
2753
2754	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2755	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2756	pSurface->autogenFilter = filter;
2757
2758	LogFunc(("sid=%x filter=%d\n", sid, filter));
2759
2760	cid = SVGA3D_INVALID_ID;
2761	pContext = &pState->SharedCtx;
2762	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2763
2764	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2765	{
2766	/* Unknown surface type; turn it into a texture. */
2767	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2768	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2769	AssertRCReturn(rc, rc);
2770	}
2771	else
2772	{
2773	/** @todo new filter */
2774	AssertFailed();
2775	}
2776
2777	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2778	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2779
2780	/* Must bind texture to the current context in order to change it. */
2781	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2783
2784	/* Generate the mip maps. */
2785	pState->ext.glGenerateMipmap(pSurface->targetGL);
2786	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2787
2788	/* Restore the old texture. */
2789	glBindTexture(pSurface->targetGL, activeTexture);
2790	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2791
2792	return VINF_SUCCESS;
2793	}
2794
2795
2796	#ifdef RT_OS_LINUX
2797	/**
2798	* X11 event handling thread.
2799	*
2800	* @returns VINF_SUCCESS (ignored)
2801	* @param hThreadSelf thread handle
2802	* @param pvUser pointer to pState structure
2803	*/
2804	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
2805	{
2806	RT_NOREF(hThreadSelf);
2807	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
2808	while (!pState->bTerminate)
2809	{
2810	while (XPending(pState->display) > 0)
2811	{
2812	XEvent event;
2813	XNextEvent(pState->display, &event);
2814
2815	switch (event.type)
2816	{
2817	default:
2818	break;
2819	}
2820	}
2821	/* sleep for 16ms to not burn too many cycles */
2822	RTThreadSleep(16);
2823	}
2824	return VINF_SUCCESS;
2825	}
2826	#endif // RT_OS_LINUX
2827
2828
2829	/**
2830	* Create a new 3d context
2831	*
2832	* @returns VBox status code.
2833	* @param pThis VGA device instance data.
2834	* @param cid Context id
2835	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
2836	*/
2837	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
2838	{
2839	int rc;
2840	PVMSVGA3DCONTEXT pContext;
2841	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2842
2843	AssertReturn(pState, VERR_NO_MEMORY);
2844	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
2845	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
2846	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
2847	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
2848	#endif
2849
2850	Log(("vmsvga3dContextDefine id %x\n", cid));
2851
2852	if (cid == VMSVGA3D_SHARED_CTX_ID)
2853	pContext = &pState->SharedCtx;
2854	else
2855	{
2856	if (cid >= pState->cContexts)
2857	{
2858	/* Grow the array. */
2859	uint32_t cNew = RT_ALIGN(cid + 15, 16);
2860	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
2861	AssertReturn(pvNew, VERR_NO_MEMORY);
2862	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
2863	while (pState->cContexts < cNew)
2864	{
2865	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
2866	AssertReturn(pContext, VERR_NO_MEMORY);
2867	pContext->id = SVGA3D_INVALID_ID;
2868	pState->papContexts[pState->cContexts++] = pContext;
2869	}
2870	}
2871	/* If one already exists with this id, then destroy it now. */
2872	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
2873	vmsvga3dContextDestroy(pThis, cid);
2874
2875	pContext = pState->papContexts[cid];
2876	}
2877
2878	/*
2879	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
2880	*/
2881	PVMSVGA3DCONTEXT pSharedCtx = NULL;
2882	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
2883	{
2884	pSharedCtx = &pState->SharedCtx;
2885	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
2886	{
2887	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
2888	AssertLogRelRCReturn(rc, rc);
2889	}
2890	}
2891
2892	/*
2893	* Initialize the context.
2894	*/
2895	memset(pContext, 0, sizeof(*pContext));
2896	pContext->id = cid;
2897	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
2898	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
2899
2900	pContext->state.shidVertex = SVGA3D_INVALID_ID;
2901	pContext->state.shidPixel = SVGA3D_INVALID_ID;
2902	pContext->idFramebuffer = OPENGL_INVALID_ID;
2903	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
2904	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
2905
2906	rc = ShaderContextCreate(&pContext->pShaderContext);
2907	AssertRCReturn(rc, rc);
2908
2909	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
2910	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
2911
2912	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
2913
2914	#ifdef RT_OS_WINDOWS
2915	/* Create a context window with minimal 4x4 size. We will never use the swapchain
2916	* to present the rendered image. Rendered images from the guest will be copied to
2917	* the VMSVGA SCREEN object, which can be either an offscreen render target or
2918	* system memory in the guest VRAM.
2919	*/
2920	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
2921	AssertRCReturn(rc, rc);
2922
2923	pContext->hdc = GetDC(pContext->hwnd);
2924	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
2925
2926	PIXELFORMATDESCRIPTOR pfd = {
2927	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
2928	1, /* version number */
2929	PFD_DRAW_TO_WINDOW \| /* support window */
2930	PFD_SUPPORT_OPENGL, /* support OpenGL */
2931	PFD_TYPE_RGBA, /* RGBA type */
2932	24, /* 24-bit color depth */
2933	0, 0, 0, 0, 0, 0, /* color bits ignored */
2934	8, /* alpha buffer */
2935	0, /* shift bit ignored */
2936	0, /* no accumulation buffer */
2937	0, 0, 0, 0, /* accum bits ignored */
2938	16, /* set depth buffer */
2939	16, /* set stencil buffer */
2940	0, /* no auxiliary buffer */
2941	PFD_MAIN_PLANE, /* main layer */
2942	0, /* reserved */
2943	0, 0, 0 /* layer masks ignored */
2944	};
2945	int pixelFormat;
2946	BOOL ret;
2947
2948	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2949	/** @todo is this really necessary?? */
2950	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2951	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2952
2953	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
2954	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2955
2956	pContext->hglrc = wglCreateContext(pContext->hdc);
2957	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
2958
2959	if (pSharedCtx)
2960	{
2961	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
2962	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
2963	}
2964
2965	#elif defined(RT_OS_DARWIN)
2966	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
2967
2968	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
2969	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
2970	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
2971	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
2972	pThis->svga.uWidth, pThis->svga.uHeight,
2973	pShareContext, pContext->fOtherProfile);
2974
2975	#else
2976	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
2977
2978	if (pState->display == NULL)
2979	{
2980	/* get an X display and make sure we have glX 1.3 */
2981	pState->display = XOpenDisplay(0);
2982	Assert(pState->display);
2983	int glxMajor, glxMinor;
2984	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
2985	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
2986	/* start our X event handling thread */
2987	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
2988	if (RT_FAILURE(rc))
2989	{
2990	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
2991	return rc;
2992	}
2993	}
2994	int attrib[] =
2995	{
2996	GLX_RGBA,
2997	GLX_RED_SIZE, 1,
2998	GLX_GREEN_SIZE, 1,
2999	GLX_BLUE_SIZE, 1,
3000	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3001	GLX_DOUBLEBUFFER,
3002	None
3003	};
3004	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3005	XSetWindowAttributes swa;
3006	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3007	swa.border_pixel = 0;
3008	swa.background_pixel = 0;
3009	swa.event_mask = StructureNotifyMask \| ExposureMask;
3010	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3011	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3012	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3013	0, vi->depth, InputOutput,
3014	vi->visual, flags, &swa);
3015	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3016	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3017
3018	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3019
3020	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3021	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3022	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3023	#endif
3024
3025	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3026
3027	/* NULL during the first PowerOn call. */
3028	if (pState->ext.glGenFramebuffers)
3029	{
3030	/* Create a framebuffer object for this context. */
3031	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3032	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3033
3034	/* Bind the object to the framebuffer target. */
3035	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3036	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3037
3038	/* Create read and draw framebuffer objects for this context. */
3039	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3041
3042	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3043	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3044
3045	}
3046	#if 0
3047	/** @todo move to shader lib!!! */
3048	/* Clear the screen */
3049	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3050
3051	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3052	glClearIndex(0);
3053	glClearDepth(1);
3054	glClearStencil(0xffff);
3055	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3056	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3057	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3058	if (pState->ext.glProvokingVertex)
3059	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3060	/** @todo move to shader lib!!! */
3061	#endif
3062	return VINF_SUCCESS;
3063	}
3064
3065
3066	/**
3067	* Create a new 3d context
3068	*
3069	* @returns VBox status code.
3070	* @param pThis VGA device instance data.
3071	* @param cid Context id
3072	*/
3073	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3074	{
3075	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3076	}
3077
3078	/**
3079	* Destroys a 3d context.
3080	*
3081	* @returns VBox status code.
3082	* @param pThis VGA device instance data.
3083	* @param pContext The context to destroy.
3084	* @param cid Context id
3085	*/
3086	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3087	{
3088	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3089	AssertReturn(pState, VERR_NO_MEMORY);
3090	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3091	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3092	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3093
3094	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3095
3096	/* Destroy all leftover pixel shaders. */
3097	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3098	{
3099	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3100	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3101	}
3102	if (pContext->paPixelShader)
3103	RTMemFree(pContext->paPixelShader);
3104
3105	/* Destroy all leftover vertex shaders. */
3106	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3107	{
3108	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3109	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3110	}
3111	if (pContext->paVertexShader)
3112	RTMemFree(pContext->paVertexShader);
3113
3114	if (pContext->state.paVertexShaderConst)
3115	RTMemFree(pContext->state.paVertexShaderConst);
3116	if (pContext->state.paPixelShaderConst)
3117	RTMemFree(pContext->state.paPixelShaderConst);
3118
3119	if (pContext->pShaderContext)
3120	{
3121	int rc = ShaderContextDestroy(pContext->pShaderContext);
3122	AssertRC(rc);
3123	}
3124
3125	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3126	{
3127	/* Unbind the object from the framebuffer target. */
3128	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3130	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3132
3133	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3134	{
3135	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3137	}
3138	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3139	{
3140	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3142	}
3143	}
3144
3145	vmsvga3dOcclusionQueryDelete(pState, pContext);
3146
3147	#ifdef RT_OS_WINDOWS
3148	wglMakeCurrent(pContext->hdc, NULL);
3149	wglDeleteContext(pContext->hglrc);
3150	ReleaseDC(pContext->hwnd, pContext->hdc);
3151
3152	/* Destroy the window we've created. */
3153	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3154	AssertRC(rc);
3155	#elif defined(RT_OS_DARWIN)
3156	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3157	#elif defined(RT_OS_LINUX)
3158	glXMakeCurrent(pState->display, None, NULL);
3159	glXDestroyContext(pState->display, pContext->glxContext);
3160	XDestroyWindow(pState->display, pContext->window);
3161	#endif
3162
3163	memset(pContext, 0, sizeof(*pContext));
3164	pContext->id = SVGA3D_INVALID_ID;
3165
3166	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3167	return VINF_SUCCESS;
3168	}
3169
3170	/**
3171	* Destroy an existing 3d context
3172	*
3173	* @returns VBox status code.
3174	* @param pThis VGA device instance data.
3175	* @param cid Context id
3176	*/
3177	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3178	{
3179	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3180	AssertReturn(pState, VERR_WRONG_ORDER);
3181
3182	/*
3183	* Resolve the context and hand it to the common worker function.
3184	*/
3185	if ( cid < pState->cContexts
3186	&& pState->papContexts[cid]->id == cid)
3187	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3188
3189	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3190	return VINF_SUCCESS;
3191	}
3192
3193	/**
3194	* Worker for vmsvga3dChangeMode that resizes a context.
3195	*
3196	* @param pThis The VGA device instance data.
3197	* @param pState The VMSVGA3d state.
3198	* @param pContext The context.
3199	*/
3200	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3201	{
3202	#ifdef RT_OS_WINDOWS
3203	RT_NOREF3(pThis, pState, pContext);
3204	/* Do nothing. The window is not used for presenting. */
3205
3206	#elif defined(RT_OS_DARWIN)
3207	RT_NOREF(pState);
3208	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3209
3210	#elif defined(RT_OS_LINUX)
3211	XWindowChanges wc;
3212	wc.width = pThis->svga.uWidth;
3213	wc.height = pThis->svga.uHeight;
3214	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3215	#endif
3216	}
3217
3218	/* Handle resize */
3219	int vmsvga3dChangeMode(PVGASTATE pThis)
3220	{
3221	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3222	AssertReturn(pState, VERR_NO_MEMORY);
3223
3224	/* Resize the shared context too. */
3225	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3226	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3227
3228	/* Resize all active contexts. */
3229	for (uint32_t i = 0; i < pState->cContexts; i++)
3230	{
3231	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3232	if (pContext->id != SVGA3D_INVALID_ID)
3233	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3234	}
3235
3236	return VINF_SUCCESS;
3237	}
3238
3239
3240	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3241	{
3242	PVMSVGA3DCONTEXT pContext;
3243	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3244	AssertReturn(pState, VERR_NO_MEMORY);
3245	bool fModelViewChanged = false;
3246
3247	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3248
3249	if ( cid >= pState->cContexts
3250	\|\| pState->papContexts[cid]->id != cid)
3251	{
3252	Log(("vmsvga3dSetTransform invalid context id!\n"));
3253	return VERR_INVALID_PARAMETER;
3254	}
3255	pContext = pState->papContexts[cid];
3256	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3257
3258	/* Save this matrix for vm state save/restore. */
3259	pContext->state.aTransformState[type].fValid = true;
3260	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3261	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3262
3263	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)));
3264	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)));
3265	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)));
3266	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)));
3267
3268	switch (type)
3269	{
3270	case SVGA3D_TRANSFORM_VIEW:
3271	/* View * World = Model View */
3272	glMatrixMode(GL_MODELVIEW);
3273	glLoadMatrixf(matrix);
3274	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3275	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3276	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3277	fModelViewChanged = true;
3278	break;
3279
3280	case SVGA3D_TRANSFORM_PROJECTION:
3281	{
3282	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3283	AssertRCReturn(rc, rc);
3284	break;
3285	}
3286
3287	case SVGA3D_TRANSFORM_TEXTURE0:
3288	glMatrixMode(GL_TEXTURE);
3289	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3290	glLoadMatrixf(matrix);
3291	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3292	break;
3293
3294	case SVGA3D_TRANSFORM_TEXTURE1:
3295	case SVGA3D_TRANSFORM_TEXTURE2:
3296	case SVGA3D_TRANSFORM_TEXTURE3:
3297	case SVGA3D_TRANSFORM_TEXTURE4:
3298	case SVGA3D_TRANSFORM_TEXTURE5:
3299	case SVGA3D_TRANSFORM_TEXTURE6:
3300	case SVGA3D_TRANSFORM_TEXTURE7:
3301	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3302	return VERR_INVALID_PARAMETER;
3303
3304	case SVGA3D_TRANSFORM_WORLD:
3305	/* View * World = Model View */
3306	glMatrixMode(GL_MODELVIEW);
3307	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3308	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3309	else
3310	glLoadIdentity();
3311	glMultMatrixf(matrix);
3312	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3313	fModelViewChanged = true;
3314	break;
3315
3316	case SVGA3D_TRANSFORM_WORLD1:
3317	case SVGA3D_TRANSFORM_WORLD2:
3318	case SVGA3D_TRANSFORM_WORLD3:
3319	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3320	return VERR_INVALID_PARAMETER;
3321
3322	default:
3323	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3324	return VERR_INVALID_PARAMETER;
3325	}
3326
3327	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3328	if (fModelViewChanged)
3329	{
3330	/* Reprogram the clip planes. */
3331	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3332	{
3333	if (pContext->state.aClipPlane[j].fValid == true)
3334	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3335	}
3336
3337	/* Reprogram the light data. */
3338	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3339	{
3340	if (pContext->state.aLightData[j].fValidData == true)
3341	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3342	}
3343	}
3344
3345	return VINF_SUCCESS;
3346	}
3347
3348	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3349	{
3350	PVMSVGA3DCONTEXT pContext;
3351	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3352	AssertReturn(pState, VERR_NO_MEMORY);
3353
3354	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3355
3356	if ( cid >= pState->cContexts
3357	\|\| pState->papContexts[cid]->id != cid)
3358	{
3359	Log(("vmsvga3dSetZRange invalid context id!\n"));
3360	return VERR_INVALID_PARAMETER;
3361	}
3362	pContext = pState->papContexts[cid];
3363	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3364
3365	pContext->state.zRange = zRange;
3366	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3367
3368	if (zRange.min < -1.0)
3369	zRange.min = -1.0;
3370	if (zRange.max > 1.0)
3371	zRange.max = 1.0;
3372
3373	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3374	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3375	return VINF_SUCCESS;
3376	}
3377
3378	/**
3379	* Convert SVGA blend op value to its OpenGL equivalent
3380	*/
3381	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3382	{
3383	switch (blendOp)
3384	{
3385	case SVGA3D_BLENDOP_ZERO:
3386	return GL_ZERO;
3387	case SVGA3D_BLENDOP_ONE:
3388	return GL_ONE;
3389	case SVGA3D_BLENDOP_SRCCOLOR:
3390	return GL_SRC_COLOR;
3391	case SVGA3D_BLENDOP_INVSRCCOLOR:
3392	return GL_ONE_MINUS_SRC_COLOR;
3393	case SVGA3D_BLENDOP_SRCALPHA:
3394	return GL_SRC_ALPHA;
3395	case SVGA3D_BLENDOP_INVSRCALPHA:
3396	return GL_ONE_MINUS_SRC_ALPHA;
3397	case SVGA3D_BLENDOP_DESTALPHA:
3398	return GL_DST_ALPHA;
3399	case SVGA3D_BLENDOP_INVDESTALPHA:
3400	return GL_ONE_MINUS_DST_ALPHA;
3401	case SVGA3D_BLENDOP_DESTCOLOR:
3402	return GL_DST_COLOR;
3403	case SVGA3D_BLENDOP_INVDESTCOLOR:
3404	return GL_ONE_MINUS_DST_COLOR;
3405	case SVGA3D_BLENDOP_SRCALPHASAT:
3406	return GL_SRC_ALPHA_SATURATE;
3407	case SVGA3D_BLENDOP_BLENDFACTOR:
3408	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3409	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3410	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3411	default:
3412	AssertFailed();
3413	return GL_ONE;
3414	}
3415	}
3416
3417	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3418	{
3419	switch (blendEq)
3420	{
3421	case SVGA3D_BLENDEQ_ADD:
3422	return GL_FUNC_ADD;
3423	case SVGA3D_BLENDEQ_SUBTRACT:
3424	return GL_FUNC_SUBTRACT;
3425	case SVGA3D_BLENDEQ_REVSUBTRACT:
3426	return GL_FUNC_REVERSE_SUBTRACT;
3427	case SVGA3D_BLENDEQ_MINIMUM:
3428	return GL_MIN;
3429	case SVGA3D_BLENDEQ_MAXIMUM:
3430	return GL_MAX;
3431	default:
3432	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3433	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3434	return GL_FUNC_ADD;
3435	}
3436	}
3437
3438	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3439	{
3440	switch (cmpFunc)
3441	{
3442	case SVGA3D_CMP_NEVER:
3443	return GL_NEVER;
3444	case SVGA3D_CMP_LESS:
3445	return GL_LESS;
3446	case SVGA3D_CMP_EQUAL:
3447	return GL_EQUAL;
3448	case SVGA3D_CMP_LESSEQUAL:
3449	return GL_LEQUAL;
3450	case SVGA3D_CMP_GREATER:
3451	return GL_GREATER;
3452	case SVGA3D_CMP_NOTEQUAL:
3453	return GL_NOTEQUAL;
3454	case SVGA3D_CMP_GREATEREQUAL:
3455	return GL_GEQUAL;
3456	case SVGA3D_CMP_ALWAYS:
3457	return GL_ALWAYS;
3458	default:
3459	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3460	return GL_LESS;
3461	}
3462	}
3463
3464	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3465	{
3466	switch (stencilOp)
3467	{
3468	case SVGA3D_STENCILOP_KEEP:
3469	return GL_KEEP;
3470	case SVGA3D_STENCILOP_ZERO:
3471	return GL_ZERO;
3472	case SVGA3D_STENCILOP_REPLACE:
3473	return GL_REPLACE;
3474	case SVGA3D_STENCILOP_INCRSAT:
3475	return GL_INCR_WRAP;
3476	case SVGA3D_STENCILOP_DECRSAT:
3477	return GL_DECR_WRAP;
3478	case SVGA3D_STENCILOP_INVERT:
3479	return GL_INVERT;
3480	case SVGA3D_STENCILOP_INCR:
3481	return GL_INCR;
3482	case SVGA3D_STENCILOP_DECR:
3483	return GL_DECR;
3484	default:
3485	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3486	return GL_KEEP;
3487	}
3488	}
3489
3490	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3491	{
3492	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3493	PVMSVGA3DCONTEXT pContext;
3494	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3495	AssertReturn(pState, VERR_NO_MEMORY);
3496
3497	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3498
3499	if ( cid >= pState->cContexts
3500	\|\| pState->papContexts[cid]->id != cid)
3501	{
3502	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3503	return VERR_INVALID_PARAMETER;
3504	}
3505	pContext = pState->papContexts[cid];
3506	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3507
3508	for (unsigned i = 0; i < cRenderStates; i++)
3509	{
3510	GLenum enableCap = ~(GLenum)0;
3511	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3512	/* Save the render state for vm state saving. */
3513	if (pRenderState[i].state < SVGA3D_RS_MAX)
3514	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3515
3516	switch (pRenderState[i].state)
3517	{
3518	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3519	enableCap = GL_DEPTH_TEST;
3520	val = pRenderState[i].uintValue;
3521	break;
3522
3523	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3524	glDepthMask(!!pRenderState[i].uintValue);
3525	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3526	break;
3527
3528	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3529	enableCap = GL_ALPHA_TEST;
3530	val = pRenderState[i].uintValue;
3531	break;
3532
3533	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3534	enableCap = GL_DITHER;
3535	val = pRenderState[i].uintValue;
3536	break;
3537
3538	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3539	enableCap = GL_FOG;
3540	val = pRenderState[i].uintValue;
3541	break;
3542
3543	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3544	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3545	break;
3546
3547	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3548	enableCap = GL_LIGHTING;
3549	val = pRenderState[i].uintValue;
3550	break;
3551
3552	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3553	/* not applicable */
3554	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3555	break;
3556
3557	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3558	enableCap = GL_POINT_SPRITE_ARB;
3559	val = pRenderState[i].uintValue;
3560	break;
3561
3562	case SVGA3D_RS_POINTSIZE: /* float */
3563	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3564	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3565	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3566	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3567	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3568
3569	glPointSize(pRenderState[i].floatValue);
3570	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3571	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3572	break;
3573
3574	case SVGA3D_RS_POINTSIZEMIN: /* float */
3575	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3576	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3577	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3578	break;
3579
3580	case SVGA3D_RS_POINTSIZEMAX: /* float */
3581	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3582	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3583	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3584	break;
3585
3586	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3587	case SVGA3D_RS_POINTSCALE_A: /* float */
3588	case SVGA3D_RS_POINTSCALE_B: /* float */
3589	case SVGA3D_RS_POINTSCALE_C: /* float */
3590	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3591	break;
3592
3593	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3594	{
3595	GLfloat color[4]; /* red, green, blue, alpha */
3596
3597	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3598
3599	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3600	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3601	break;
3602	}
3603
3604	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3605	{
3606	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3607	for (uint32_t j = 0; j <= 5; j++)
3608	{
3609	if (pRenderState[i].uintValue & RT_BIT(j))
3610	glEnable(GL_CLIP_PLANE0 + j);
3611	else
3612	glDisable(GL_CLIP_PLANE0 + j);
3613	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3614	}
3615	break;
3616	}
3617
3618	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3619	{
3620	GLfloat color[4]; /* red, green, blue, alpha */
3621
3622	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3623
3624	glFogfv(GL_FOG_COLOR, color);
3625	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3626	break;
3627	}
3628
3629	case SVGA3D_RS_FOGSTART: /* float */
3630	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3631	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3632	break;
3633
3634	case SVGA3D_RS_FOGEND: /* float */
3635	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3636	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3637	break;
3638
3639	case SVGA3D_RS_FOGDENSITY: /* float */
3640	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3641	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3642	break;
3643
3644	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3645	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3646	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3647	break;
3648
3649	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3650	{
3651	SVGA3dFogMode mode;
3652	mode.uintValue = pRenderState[i].uintValue;
3653
3654	enableCap = GL_FOG_MODE;
3655	switch (mode.s.function)
3656	{
3657	case SVGA3D_FOGFUNC_EXP:
3658	val = GL_EXP;
3659	break;
3660	case SVGA3D_FOGFUNC_EXP2:
3661	val = GL_EXP2;
3662	break;
3663	case SVGA3D_FOGFUNC_LINEAR:
3664	val = GL_LINEAR;
3665	break;
3666	default:
3667	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3668	break;
3669	}
3670
3671	/** @todo how to switch between vertex and pixel fog modes??? */
3672	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3673	#if 0
3674	/* The fog type determines the render state. */
3675	switch (mode.s.type)
3676	{
3677	case SVGA3D_FOGTYPE_VERTEX:
3678	renderState = D3DRS_FOGVERTEXMODE;
3679	break;
3680	case SVGA3D_FOGTYPE_PIXEL:
3681	renderState = D3DRS_FOGTABLEMODE;
3682	break;
3683	default:
3684	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3685	break;
3686	}
3687	#endif
3688
3689	/* Set the fog base to depth or range. */
3690	switch (mode.s.base)
3691	{
3692	case SVGA3D_FOGBASE_DEPTHBASED:
3693	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3694	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3695	break;
3696	case SVGA3D_FOGBASE_RANGEBASED:
3697	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3699	break;
3700	default:
3701	/* ignore */
3702	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3703	break;
3704	}
3705	break;
3706	}
3707
3708	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3709	{
3710	SVGA3dFillMode mode;
3711
3712	mode.uintValue = pRenderState[i].uintValue;
3713
3714	switch (mode.s.mode)
3715	{
3716	case SVGA3D_FILLMODE_POINT:
3717	val = GL_POINT;
3718	break;
3719	case SVGA3D_FILLMODE_LINE:
3720	val = GL_LINE;
3721	break;
3722	case SVGA3D_FILLMODE_FILL:
3723	val = GL_FILL;
3724	break;
3725	default:
3726	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3727	break;
3728	}
3729	/* @note only front and back faces */
3730	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3731	glPolygonMode(GL_FRONT_AND_BACK, val);
3732	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3733	break;
3734	}
3735
3736	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3737	switch (pRenderState[i].uintValue)
3738	{
3739	case SVGA3D_SHADEMODE_FLAT:
3740	val = GL_FLAT;
3741	break;
3742
3743	case SVGA3D_SHADEMODE_SMOOTH:
3744	val = GL_SMOOTH;
3745	break;
3746
3747	default:
3748	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3749	break;
3750	}
3751
3752	glShadeModel(val);
3753	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3754	break;
3755
3756	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3757	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3758	/** @todo */
3759	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3760	/*
3761	renderState = D3DRS_LINEPATTERN;
3762	val = pRenderState[i].uintValue;
3763	*/
3764	break;
3765
3766	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3767	enableCap = GL_LINE_SMOOTH;
3768	val = pRenderState[i].uintValue;
3769	break;
3770
3771	case SVGA3D_RS_LINEWIDTH: /* float */
3772	glLineWidth(pRenderState[i].floatValue);
3773	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3774	break;
3775
3776	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3777	{
3778	/* Refresh the blending state based on the new enable setting.
3779	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3780	*/
3781	static SVGA3dRenderStateName const saRefreshState[] =
3782	{
3783	SVGA3D_RS_SRCBLEND,
3784	SVGA3D_RS_BLENDEQUATION
3785	};
3786	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3787	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3788	{
3789	renderstate[j].state = saRefreshState[j];
3790	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3791	}
3792
3793	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3794	AssertRCReturn(rc, rc);
3795
3796	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3797	continue; /* Ignore if blend is enabled */
3798	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3799	} RT_FALL_THRU();
3800
3801	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3802	enableCap = GL_BLEND;
3803	val = pRenderState[i].uintValue;
3804	break;
3805
3806	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
3807	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
3808	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
3809	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
3810	{
3811	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
3812	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
3813
3814	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
3815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3816	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
3817	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3818	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
3819	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3820	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
3821	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3822
3823	switch (pRenderState[i].state)
3824	{
3825	case SVGA3D_RS_SRCBLEND:
3826	srcRGB = blendop;
3827	break;
3828	case SVGA3D_RS_DSTBLEND:
3829	dstRGB = blendop;
3830	break;
3831	case SVGA3D_RS_SRCBLENDALPHA:
3832	srcAlpha = blendop;
3833	break;
3834	case SVGA3D_RS_DSTBLENDALPHA:
3835	dstAlpha = blendop;
3836	break;
3837	default:
3838	/* not possible; shut up gcc */
3839	AssertFailed();
3840	break;
3841	}
3842
3843	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3844	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
3845	else
3846	glBlendFunc(srcRGB, dstRGB);
3847	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3848	break;
3849	}
3850
3851	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
3852	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
3853	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3854	{
3855	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
3856	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
3857	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
3858	}
3859	else
3860	{
3861	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3862	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3863	#else
3864	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3865	#endif
3866	}
3867	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3868	break;
3869
3870	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
3871	{
3872	GLfloat red, green, blue, alpha;
3873
3874	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
3875
3876	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3877	glBlendColor(red, green, blue, alpha);
3878	#else
3879	pState->ext.glBlendColor(red, green, blue, alpha);
3880	#endif
3881	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3882	break;
3883	}
3884
3885	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
3886	{
3887	GLenum mode = GL_BACK; /* default for OpenGL */
3888
3889	switch (pRenderState[i].uintValue)
3890	{
3891	case SVGA3D_FACE_NONE:
3892	break;
3893	case SVGA3D_FACE_FRONT:
3894	mode = GL_FRONT;
3895	break;
3896	case SVGA3D_FACE_BACK:
3897	mode = GL_BACK;
3898	break;
3899	case SVGA3D_FACE_FRONT_BACK:
3900	mode = GL_FRONT_AND_BACK;
3901	break;
3902	default:
3903	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3904	break;
3905	}
3906	enableCap = GL_CULL_FACE;
3907	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
3908	{
3909	glCullFace(mode);
3910	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3911	val = 1;
3912	}
3913	else
3914	val = 0;
3915	break;
3916	}
3917
3918	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
3919	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
3920	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3921	break;
3922
3923	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
3924	{
3925	GLclampf ref;
3926
3927	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
3928	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3929	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
3930	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3931	break;
3932	}
3933
3934	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
3935	{
3936	GLint func;
3937
3938	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
3939	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3940	glAlphaFunc(func, pRenderState[i].floatValue);
3941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3942	break;
3943	}
3944
3945	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
3946	{
3947	/* Refresh the stencil state based on the new enable setting.
3948	* This will take existing states and set them using either glStencil or glStencil*Separate.
3949	*/
3950	static SVGA3dRenderStateName const saRefreshState[] =
3951	{
3952	SVGA3D_RS_STENCILFUNC,
3953	SVGA3D_RS_STENCILFAIL,
3954	SVGA3D_RS_CCWSTENCILFUNC,
3955	SVGA3D_RS_CCWSTENCILFAIL
3956	};
3957	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3958	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3959	{
3960	renderstate[j].state = saRefreshState[j];
3961	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3962	}
3963
3964	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
3965	AssertRCReturn(rc, rc);
3966
3967	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
3968	continue; /* Ignore if stencil is enabled */
3969	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
3970	} RT_FALL_THRU();
3971
3972	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
3973	enableCap = GL_STENCIL_TEST;
3974	val = pRenderState[i].uintValue;
3975	break;
3976
3977	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
3978	case SVGA3D_RS_STENCILREF: /* uint32_t */
3979	case SVGA3D_RS_STENCILMASK: /* uint32_t */
3980	{
3981	GLint func, ref;
3982	GLuint mask;
3983
3984	/* Query current values to have all parameters for glStencilFunc[Separate]. */
3985	glGetIntegerv(GL_STENCIL_FUNC, &func);
3986	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3987	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
3988	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3989	glGetIntegerv(GL_STENCIL_REF, &ref);
3990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3991
3992	/* Update the changed value. */
3993	switch (pRenderState[i].state)
3994	{
3995	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
3996	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
3997	break;
3998
3999	case SVGA3D_RS_STENCILREF: /* uint32_t */
4000	ref = pRenderState[i].uintValue;
4001	break;
4002
4003	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4004	mask = pRenderState[i].uintValue;
4005	break;
4006
4007	default:
4008	/* not possible; shut up gcc */
4009	AssertFailed();
4010	break;
4011	}
4012
4013	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4014	{
4015	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4016	}
4017	else
4018	{
4019	glStencilFunc(func, ref, mask);
4020	}
4021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4022	break;
4023	}
4024
4025	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4026	glStencilMask(pRenderState[i].uintValue);
4027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4028	break;
4029
4030	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4031	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4032	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4033	{
4034	GLint sfail, dpfail, dppass;
4035	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4036
4037	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4038	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4039	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4041	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4043
4044	switch (pRenderState[i].state)
4045	{
4046	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4047	sfail = stencilop;
4048	break;
4049	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4050	dpfail = stencilop;
4051	break;
4052	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4053	dppass = stencilop;
4054	break;
4055	default:
4056	/* not possible; shut up gcc */
4057	AssertFailed();
4058	break;
4059	}
4060	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4061	{
4062	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4063	}
4064	else
4065	{
4066	glStencilOp(sfail, dpfail, dppass);
4067	}
4068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4069	break;
4070	}
4071
4072	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4073	{
4074	GLint ref;
4075	GLuint mask;
4076	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4077
4078	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4079	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4081	glGetIntegerv(GL_STENCIL_REF, &ref);
4082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4083
4084	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4086	break;
4087	}
4088
4089	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4090	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4091	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4092	{
4093	GLint sfail, dpfail, dppass;
4094	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4095
4096	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4097	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4098	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4100	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4101	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4102
4103	switch (pRenderState[i].state)
4104	{
4105	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4106	sfail = stencilop;
4107	break;
4108	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4109	dpfail = stencilop;
4110	break;
4111	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4112	dppass = stencilop;
4113	break;
4114	default:
4115	/* not possible; shut up gcc */
4116	AssertFailed();
4117	break;
4118	}
4119	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4120	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4121	break;
4122	}
4123
4124	case SVGA3D_RS_ZBIAS: /* float */
4125	/** @todo unknown meaning; depth bias is not identical
4126	renderState = D3DRS_DEPTHBIAS;
4127	val = pRenderState[i].uintValue;
4128	*/
4129	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4130	break;
4131
4132	case SVGA3D_RS_DEPTHBIAS: /* float */
4133	{
4134	GLfloat factor;
4135
4136	/** @todo not sure if the d3d & ogl definitions are identical. */
4137
4138	/* Do not change the factor part. */
4139	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4141
4142	glPolygonOffset(factor, pRenderState[i].floatValue);
4143	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4144	break;
4145	}
4146
4147	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4148	{
4149	GLfloat units;
4150
4151	/** @todo not sure if the d3d & ogl definitions are identical. */
4152
4153	/* Do not change the factor part. */
4154	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4155	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4156
4157	glPolygonOffset(pRenderState[i].floatValue, units);
4158	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4159	break;
4160	}
4161
4162	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4163	{
4164	GLboolean red, green, blue, alpha;
4165	SVGA3dColorMask mask;
4166
4167	mask.uintValue = pRenderState[i].uintValue;
4168
4169	red = mask.s.red;
4170	green = mask.s.green;
4171	blue = mask.s.blue;
4172	alpha = mask.s.alpha;
4173
4174	glColorMask(red, green, blue, alpha);
4175	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4176	break;
4177	}
4178
4179	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4180	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4181	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4182	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4183	break;
4184
4185	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4186	enableCap = GL_SCISSOR_TEST;
4187	val = pRenderState[i].uintValue;
4188	break;
4189
4190	#if 0
4191	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4192	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4193	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4194	val = pRenderState[i].uintValue;
4195	break;
4196
4197	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4198	renderState = D3DRS_SPECULARMATERIALSOURCE;
4199	val = pRenderState[i].uintValue;
4200	break;
4201
4202	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4203	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4204	val = pRenderState[i].uintValue;
4205	break;
4206
4207	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4208	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4209	val = pRenderState[i].uintValue;
4210	break;
4211	#endif
4212
4213	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4214	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4215	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4216	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4217	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4218	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4219	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4220	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4221	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4222	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4223	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4224	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4225	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4226	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4227	break;
4228
4229	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4230	case SVGA3D_RS_TWEENFACTOR: /* float */
4231	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4232	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4233	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4234	break;
4235
4236	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4237	enableCap = GL_MULTISAMPLE;
4238	val = pRenderState[i].uintValue;
4239	break;
4240
4241	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4242	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4243	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4244	break;
4245
4246	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4247	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4248	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4249	/*
4250	renderState = D3DRS_COORDINATETYPE;
4251	val = pRenderState[i].uintValue;
4252	*/
4253	break;
4254
4255	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4256	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4257	/* Invert the selected mode because of y-inversion (?) */
4258	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4259	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4260	break;
4261
4262	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4263	//AssertFailed();
4264	/*
4265	D3DRS_SRGBWRITEENABLE ??
4266	renderState = D3DRS_OUTPUTGAMMA;
4267	val = pRenderState[i].uintValue;
4268	*/
4269	break;
4270
4271	#if 0
4272
4273	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4274	//AssertFailed();
4275	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4276	val = pRenderState[i].uintValue;
4277	break;
4278
4279	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4280	renderState = D3DRS_TEXTUREFACTOR;
4281	val = pRenderState[i].uintValue;
4282	break;
4283
4284	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4285	renderState = D3DRS_LOCALVIEWER;
4286	val = pRenderState[i].uintValue;
4287	break;
4288
4289	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4290	AssertFailed();
4291	/*
4292	renderState = D3DRS_ZVISIBLE;
4293	val = pRenderState[i].uintValue;
4294	*/
4295	break;
4296
4297	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4298	renderState = D3DRS_CLIPPING;
4299	val = pRenderState[i].uintValue;
4300	break;
4301
4302	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4303	glTexParameter GL_TEXTURE_WRAP_S
4304	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4305	renderState = D3DRS_WRAP0;
4306	val = pRenderState[i].uintValue;
4307	break;
4308
4309	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4310	glTexParameter GL_TEXTURE_WRAP_T
4311	renderState = D3DRS_WRAP1;
4312	val = pRenderState[i].uintValue;
4313	break;
4314
4315	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4316	glTexParameter GL_TEXTURE_WRAP_R
4317	renderState = D3DRS_WRAP2;
4318	val = pRenderState[i].uintValue;
4319	break;
4320
4321
4322	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4323	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4324	val = pRenderState[i].uintValue;
4325	break;
4326
4327
4328	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4329	renderState = D3DRS_BLENDOPALPHA;
4330	val = pRenderState[i].uintValue;
4331	break;
4332
4333	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4334	AssertFailed();
4335	/*
4336	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4337	val = pRenderState[i].uintValue;
4338	*/
4339	break;
4340
4341	#endif
4342	default:
4343	AssertFailed();
4344	break;
4345	}
4346
4347	if (enableCap != ~(GLenum)0)
4348	{
4349	if (val)
4350	glEnable(enableCap);
4351	else
4352	glDisable(enableCap);
4353	}
4354	}
4355
4356	return VINF_SUCCESS;
4357	}
4358
4359	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4360	{
4361	PVMSVGA3DCONTEXT pContext;
4362	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4363	PVMSVGA3DSURFACE pRenderTarget;
4364
4365	AssertReturn(pState, VERR_NO_MEMORY);
4366	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4367
4368	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4369
4370	if ( cid >= pState->cContexts
4371	\|\| pState->papContexts[cid]->id != cid)
4372	{
4373	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4374	return VERR_INVALID_PARAMETER;
4375	}
4376	pContext = pState->papContexts[cid];
4377	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4378
4379	/* Save for vm state save/restore. */
4380	pContext->state.aRenderTargets[type] = target.sid;
4381
4382	if (target.sid == SVGA3D_INVALID_ID)
4383	{
4384	/* Disable render target. */
4385	switch (type)
4386	{
4387	case SVGA3D_RT_DEPTH:
4388	case SVGA3D_RT_STENCIL:
4389	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4391	break;
4392
4393	case SVGA3D_RT_COLOR0:
4394	case SVGA3D_RT_COLOR1:
4395	case SVGA3D_RT_COLOR2:
4396	case SVGA3D_RT_COLOR3:
4397	case SVGA3D_RT_COLOR4:
4398	case SVGA3D_RT_COLOR5:
4399	case SVGA3D_RT_COLOR6:
4400	case SVGA3D_RT_COLOR7:
4401	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4403	break;
4404
4405	default:
4406	AssertFailedReturn(VERR_INVALID_PARAMETER);
4407	}
4408	return VINF_SUCCESS;
4409	}
4410
4411	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4412	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4413	pRenderTarget = pState->papSurfaces[target.sid];
4414
4415	switch (type)
4416	{
4417	case SVGA3D_RT_DEPTH:
4418	case SVGA3D_RT_STENCIL:
4419	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4420	#if 1
4421	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4422	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4423	{
4424	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4425	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4426	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4427	AssertRCReturn(rc, rc);
4428	}
4429
4430	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4431	Assert(!pRenderTarget->fDirty);
4432
4433	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4434
4435	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4436	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4437	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4439	#else
4440	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4441	{
4442	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4443	pContext = &pState->SharedCtx;
4444	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4445
4446	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4447	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4448
4449	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4450	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4451
4452	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4453	pRenderTarget->internalFormatGL,
4454	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4455	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4456	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4457
4458	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4459	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4460
4461	pContext = pState->papContexts[cid];
4462	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4463	pRenderTarget->idWeakContextAssociation = cid;
4464	}
4465
4466	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4468	Assert(!pRenderTarget->fDirty);
4469	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4470
4471	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4472
4473	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4474	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4475	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4476	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4477	#endif
4478	break;
4479
4480	case SVGA3D_RT_COLOR0:
4481	case SVGA3D_RT_COLOR1:
4482	case SVGA3D_RT_COLOR2:
4483	case SVGA3D_RT_COLOR3:
4484	case SVGA3D_RT_COLOR4:
4485	case SVGA3D_RT_COLOR5:
4486	case SVGA3D_RT_COLOR6:
4487	case SVGA3D_RT_COLOR7:
4488	{
4489	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4490	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4491	{
4492	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));
4493	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4494	AssertRCReturn(rc, rc);
4495	}
4496
4497	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4498	Assert(!pRenderTarget->fDirty);
4499
4500	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4501
4502	GLenum textarget;
4503	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4504	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4505	else
4506	textarget = GL_TEXTURE_2D;
4507	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4508	textarget, pRenderTarget->oglId.texture, target.mipmap);
4509	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4510
4511	#ifdef DEBUG
4512	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4513	if (status != GL_FRAMEBUFFER_COMPLETE)
4514	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4515	#endif
4516	/** @todo use glDrawBuffers too? */
4517	break;
4518	}
4519
4520	default:
4521	AssertFailedReturn(VERR_INVALID_PARAMETER);
4522	}
4523
4524	return VINF_SUCCESS;
4525	}
4526
4527	#if 0
4528	/**
4529	* Convert SVGA texture combiner value to its D3D equivalent
4530	*/
4531	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4532	{
4533	switch (value)
4534	{
4535	case SVGA3D_TC_DISABLE:
4536	return D3DTOP_DISABLE;
4537	case SVGA3D_TC_SELECTARG1:
4538	return D3DTOP_SELECTARG1;
4539	case SVGA3D_TC_SELECTARG2:
4540	return D3DTOP_SELECTARG2;
4541	case SVGA3D_TC_MODULATE:
4542	return D3DTOP_MODULATE;
4543	case SVGA3D_TC_ADD:
4544	return D3DTOP_ADD;
4545	case SVGA3D_TC_ADDSIGNED:
4546	return D3DTOP_ADDSIGNED;
4547	case SVGA3D_TC_SUBTRACT:
4548	return D3DTOP_SUBTRACT;
4549	case SVGA3D_TC_BLENDTEXTUREALPHA:
4550	return D3DTOP_BLENDTEXTUREALPHA;
4551	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4552	return D3DTOP_BLENDDIFFUSEALPHA;
4553	case SVGA3D_TC_BLENDCURRENTALPHA:
4554	return D3DTOP_BLENDCURRENTALPHA;
4555	case SVGA3D_TC_BLENDFACTORALPHA:
4556	return D3DTOP_BLENDFACTORALPHA;
4557	case SVGA3D_TC_MODULATE2X:
4558	return D3DTOP_MODULATE2X;
4559	case SVGA3D_TC_MODULATE4X:
4560	return D3DTOP_MODULATE4X;
4561	case SVGA3D_TC_DSDT:
4562	AssertFailed(); /** @todo ??? */
4563	return D3DTOP_DISABLE;
4564	case SVGA3D_TC_DOTPRODUCT3:
4565	return D3DTOP_DOTPRODUCT3;
4566	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4567	return D3DTOP_BLENDTEXTUREALPHAPM;
4568	case SVGA3D_TC_ADDSIGNED2X:
4569	return D3DTOP_ADDSIGNED2X;
4570	case SVGA3D_TC_ADDSMOOTH:
4571	return D3DTOP_ADDSMOOTH;
4572	case SVGA3D_TC_PREMODULATE:
4573	return D3DTOP_PREMODULATE;
4574	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4575	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4576	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4577	return D3DTOP_MODULATECOLOR_ADDALPHA;
4578	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4579	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4580	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4581	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4582	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4583	return D3DTOP_BUMPENVMAPLUMINANCE;
4584	case SVGA3D_TC_MULTIPLYADD:
4585	return D3DTOP_MULTIPLYADD;
4586	case SVGA3D_TC_LERP:
4587	return D3DTOP_LERP;
4588	default:
4589	AssertFailed();
4590	return D3DTOP_DISABLE;
4591	}
4592	}
4593
4594	/**
4595	* Convert SVGA texture arg data value to its D3D equivalent
4596	*/
4597	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4598	{
4599	switch (value)
4600	{
4601	case SVGA3D_TA_CONSTANT:
4602	return D3DTA_CONSTANT;
4603	case SVGA3D_TA_PREVIOUS:
4604	return D3DTA_CURRENT; /* current = previous */
4605	case SVGA3D_TA_DIFFUSE:
4606	return D3DTA_DIFFUSE;
4607	case SVGA3D_TA_TEXTURE:
4608	return D3DTA_TEXTURE;
4609	case SVGA3D_TA_SPECULAR:
4610	return D3DTA_SPECULAR;
4611	default:
4612	AssertFailed();
4613	return 0;
4614	}
4615	}
4616
4617	/**
4618	* Convert SVGA texture transform flag value to its D3D equivalent
4619	*/
4620	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4621	{
4622	switch (value)
4623	{
4624	case SVGA3D_TEX_TRANSFORM_OFF:
4625	return D3DTTFF_DISABLE;
4626	case SVGA3D_TEX_TRANSFORM_S:
4627	return D3DTTFF_COUNT1; /** @todo correct? */
4628	case SVGA3D_TEX_TRANSFORM_T:
4629	return D3DTTFF_COUNT2; /** @todo correct? */
4630	case SVGA3D_TEX_TRANSFORM_R:
4631	return D3DTTFF_COUNT3; /** @todo correct? */
4632	case SVGA3D_TEX_TRANSFORM_Q:
4633	return D3DTTFF_COUNT4; /** @todo correct? */
4634	case SVGA3D_TEX_PROJECTED:
4635	return D3DTTFF_PROJECTED;
4636	default:
4637	AssertFailed();
4638	return 0;
4639	}
4640	}
4641	#endif
4642
4643	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4644	{
4645	switch (value)
4646	{
4647	case SVGA3D_TEX_ADDRESS_WRAP:
4648	return GL_REPEAT;
4649	case SVGA3D_TEX_ADDRESS_MIRROR:
4650	return GL_MIRRORED_REPEAT;
4651	case SVGA3D_TEX_ADDRESS_CLAMP:
4652	return GL_CLAMP_TO_EDGE;
4653	case SVGA3D_TEX_ADDRESS_BORDER:
4654	return GL_CLAMP_TO_BORDER;
4655	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4656	AssertFailed();
4657	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4658
4659	case SVGA3D_TEX_ADDRESS_EDGE:
4660	case SVGA3D_TEX_ADDRESS_INVALID:
4661	default:
4662	AssertFailed();
4663	return GL_REPEAT; /* default */
4664	}
4665	}
4666
4667	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4668	{
4669	switch (value)
4670	{
4671	case SVGA3D_TEX_FILTER_NONE:
4672	case SVGA3D_TEX_FILTER_LINEAR:
4673	return GL_LINEAR;
4674	case SVGA3D_TEX_FILTER_NEAREST:
4675	return GL_NEAREST;
4676	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4677	/** @todo */
4678	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4679	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4680	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4681	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4682	default:
4683	AssertFailed();
4684	return GL_LINEAR; /* default */
4685	}
4686	}
4687
4688	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4689	{
4690	/* flip the red and blue bytes */
4691	uint8_t blue = value & 0xff;
4692	uint8_t red = (value >> 16) & 0xff;
4693	return (value & 0xff00ff00) \| red \| (blue << 16);
4694	}
4695
4696	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4697	{
4698	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4699	GLenum currentStage = ~(GLenum)0;
4700	PVMSVGA3DCONTEXT pContext;
4701	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4702	AssertReturn(pState, VERR_NO_MEMORY);
4703
4704	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4705
4706	if ( cid >= pState->cContexts
4707	\|\| pState->papContexts[cid]->id != cid)
4708	{
4709	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4710	return VERR_INVALID_PARAMETER;
4711	}
4712	pContext = pState->papContexts[cid];
4713	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4714
4715	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4716	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4717
4718	for (uint32_t i = 0; i < cTextureStates; ++i)
4719	{
4720	GLenum textureType = ~(GLenum)0;
4721	#if 0
4722	GLenum samplerType = ~(GLenum)0;
4723	#endif
4724
4725	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4726	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4727
4728	/* Record the texture state for vm state saving. */
4729	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4730	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4731	{
4732	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4733	}
4734
4735	/* Activate the right texture unit for subsequent texture state changes. */
4736	if (pTextureState[i].stage != currentStage \|\| i == 0)
4737	{
4738	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4739	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4740	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4741	{
4742	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4743	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4744	currentStage = pTextureState[i].stage;
4745	}
4746	else
4747	{
4748	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4749	continue;
4750	}
4751
4752	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4753	{
4754	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4755	AssertRCReturn(rc, rc);
4756	}
4757	else
4758	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4759	}
4760
4761	switch (pTextureState[i].name)
4762	{
4763	case SVGA3D_TS_BUMPENVMAT00: /* float */
4764	case SVGA3D_TS_BUMPENVMAT01: /* float */
4765	case SVGA3D_TS_BUMPENVMAT10: /* float */
4766	case SVGA3D_TS_BUMPENVMAT11: /* float */
4767	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4768	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4769	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4770	break;
4771
4772	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4773	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4774	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4775	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4776	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4777	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4778	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4779	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4780	/** @todo not used by MesaGL */
4781	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4782	break;
4783	#if 0
4784
4785	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4786	textureType = D3DTSS_TEXCOORDINDEX;
4787	val = pTextureState[i].value;
4788	break;
4789
4790	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4791	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4792	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4793	break;
4794	#endif
4795
4796	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4797	{
4798	uint32_t const sid = pTextureState[i].value;
4799
4800	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4801	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4802
4803	/* Only is texture actually changed. */ /// @todo needs testing.
4804	if (pContext->aSidActiveTextures[currentStage] != sid)
4805	{
4806	if (pCurrentTextureSurface)
4807	{
4808	/* Unselect the currently associated texture. */
4809	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4810	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4811
4812	/* Necessary for the fixed pipeline. */
4813	glDisable(pCurrentTextureSurface->targetGL);
4814	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4815
4816	pCurrentTextureSurface = NULL;
4817	}
4818
4819	if (sid == SVGA3D_INVALID_ID)
4820	{
4821	Assert(pCurrentTextureSurface == NULL);
4822	}
4823	else
4824	{
4825	PVMSVGA3DSURFACE pSurface;
4826	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
4827	AssertRCReturn(rc, rc);
4828
4829	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
4830	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
4831	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
4832
4833	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
4834	{
4835	Log(("CreateTexture (%d,%d) levels=%d\n",
4836	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
4837	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
4838	AssertRCReturn(rc, rc);
4839	}
4840
4841	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
4842	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4843
4844	/* Necessary for the fixed pipeline. */
4845	glEnable(pSurface->targetGL);
4846	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4847
4848	/* Remember the currently active texture. */
4849	pCurrentTextureSurface = pSurface;
4850
4851	/* Recreate the texture state as glBindTexture resets them all (sigh). */
4852	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
4853	{
4854	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
4855	{
4856	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
4857
4858	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
4859	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
4860	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
4861	}
4862	}
4863	}
4864
4865	pContext->aSidActiveTextures[currentStage] = sid;
4866	}
4867
4868	/* Finished; continue with the next one. */
4869	continue;
4870	}
4871
4872	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
4873	textureType = GL_TEXTURE_WRAP_R; /* R = W */
4874	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4875	break;
4876
4877	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
4878	textureType = GL_TEXTURE_WRAP_S; /* S = U */
4879	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4880	break;
4881
4882	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
4883	textureType = GL_TEXTURE_WRAP_T; /* T = V */
4884	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4885	break;
4886
4887	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
4888	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
4889	{
4890	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
4891	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
4892
4893	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
4894	textureType = GL_TEXTURE_MIN_FILTER;
4895	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
4896	{
4897	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
4898	{
4899	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4900	val = GL_NEAREST_MIPMAP_LINEAR;
4901	else
4902	val = GL_NEAREST_MIPMAP_NEAREST;
4903	}
4904	else
4905	{
4906	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4907	val = GL_LINEAR_MIPMAP_LINEAR;
4908	else
4909	val = GL_LINEAR_MIPMAP_NEAREST;
4910	}
4911	}
4912	else
4913	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
4914	break;
4915	}
4916
4917	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
4918	textureType = GL_TEXTURE_MAG_FILTER;
4919	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
4920	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
4921	break;
4922
4923	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
4924	{
4925	GLfloat color[4]; /* red, green, blue, alpha */
4926	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
4927
4928	GLenum targetGL;
4929	if (pCurrentTextureSurface)
4930	targetGL = pCurrentTextureSurface->targetGL;
4931	else
4932	{
4933	/* No texture bound, assume 2D. */
4934	targetGL = GL_TEXTURE_2D;
4935	}
4936
4937	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
4938	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4939	break;
4940	}
4941
4942	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
4943	{
4944	GLenum targetGL;
4945	if (pCurrentTextureSurface)
4946	targetGL = pCurrentTextureSurface->targetGL;
4947	else
4948	{
4949	/* No texture bound, assume 2D. */
4950	targetGL = GL_TEXTURE_2D;
4951	}
4952
4953	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
4954	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4955	break;
4956	}
4957
4958	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
4959	textureType = GL_TEXTURE_BASE_LEVEL;
4960	val = pTextureState[i].value;
4961	break;
4962
4963	#if 0
4964	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
4965	samplerType = D3DSAMP_MAXANISOTROPY;
4966	val = pTextureState[i].value; /* Identical?? */
4967	break;
4968
4969	case SVGA3D_TS_GAMMA: /* float */
4970	samplerType = D3DSAMP_SRGBTEXTURE;
4971	/* Boolean in D3D */
4972	if (pTextureState[i].floatValue == 1.0f)
4973	val = FALSE;
4974	else
4975	val = TRUE;
4976	break;
4977	#endif
4978	/* Internal commands, that don't map directly to the SetTextureStageState API. */
4979	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
4980	AssertFailed();
4981	break;
4982
4983	default:
4984	//AssertFailed();
4985	break;
4986	}
4987
4988	if (textureType != ~(GLenum)0)
4989	{
4990	GLenum targetGL;
4991	if (pCurrentTextureSurface)
4992	targetGL = pCurrentTextureSurface->targetGL;
4993	else
4994	{
4995	/* No texture bound, assume 2D. */
4996	targetGL = GL_TEXTURE_2D;
4997	}
4998
4999	glTexParameteri(targetGL, textureType, val);
5000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5001	}
5002	}
5003
5004	return VINF_SUCCESS;
5005	}
5006
5007	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5008	{
5009	PVMSVGA3DCONTEXT pContext;
5010	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5011	AssertReturn(pState, VERR_NO_MEMORY);
5012	GLenum oglFace;
5013
5014	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5015
5016	if ( cid >= pState->cContexts
5017	\|\| pState->papContexts[cid]->id != cid)
5018	{
5019	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5020	return VERR_INVALID_PARAMETER;
5021	}
5022	pContext = pState->papContexts[cid];
5023	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5024
5025	switch (face)
5026	{
5027	case SVGA3D_FACE_NONE:
5028	case SVGA3D_FACE_FRONT:
5029	oglFace = GL_FRONT;
5030	break;
5031
5032	case SVGA3D_FACE_BACK:
5033	oglFace = GL_BACK;
5034	break;
5035
5036	case SVGA3D_FACE_FRONT_BACK:
5037	oglFace = GL_FRONT_AND_BACK;
5038	break;
5039
5040	default:
5041	AssertFailedReturn(VERR_INVALID_PARAMETER);
5042	}
5043
5044	/* Save for vm state save/restore. */
5045	pContext->state.aMaterial[face].fValid = true;
5046	pContext->state.aMaterial[face].material = *pMaterial;
5047	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5048
5049	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5050	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5051	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5052	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5053	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5055
5056	return VINF_SUCCESS;
5057	}
5058
5059	/** @todo Move into separate library as we are using logic from Wine here. */
5060	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5061	{
5062	PVMSVGA3DCONTEXT pContext;
5063	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5064	AssertReturn(pState, VERR_NO_MEMORY);
5065	float QuadAttenuation;
5066
5067	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5068
5069	if ( cid >= pState->cContexts
5070	\|\| pState->papContexts[cid]->id != cid)
5071	{
5072	Log(("vmsvga3dSetLightData invalid context id!\n"));
5073	return VERR_INVALID_PARAMETER;
5074	}
5075	pContext = pState->papContexts[cid];
5076	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5077
5078	/* Store for vm state save/restore */
5079	if (index < SVGA3D_MAX_LIGHTS)
5080	{
5081	pContext->state.aLightData[index].fValidData = true;
5082	pContext->state.aLightData[index].data = *pData;
5083	}
5084	else
5085	AssertFailed();
5086
5087	if ( pData->attenuation0 < 0.0f
5088	\|\| pData->attenuation1 < 0.0f
5089	\|\| pData->attenuation2 < 0.0f)
5090	{
5091	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5092	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5093	}
5094
5095	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5096	glMatrixMode(GL_MODELVIEW);
5097	glPushMatrix();
5098	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5099
5100	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5101	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5102	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5103
5104	if (pData->range * pData->range >= FLT_MIN)
5105	QuadAttenuation = 1.4f / (pData->range * pData->range);
5106	else
5107	QuadAttenuation = 0.0f;
5108
5109	switch (pData->type)
5110	{
5111	case SVGA3D_LIGHTTYPE_POINT:
5112	{
5113	GLfloat position[4];
5114
5115	position[0] = pData->position[0];
5116	position[1] = pData->position[1];
5117	position[2] = pData->position[2];
5118	position[3] = 1.0f;
5119
5120	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5121	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5122
5123	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5124	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5125
5126	/* Attenuation - Are these right? guessing... */
5127	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5128	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5129
5130	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5131	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5132
5133	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5134	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5135
5136	/** @todo range */
5137	break;
5138	}
5139
5140	case SVGA3D_LIGHTTYPE_SPOT1:
5141	{
5142	GLfloat exponent;
5143	GLfloat position[4];
5144	const GLfloat pi = 4.0f * atanf(1.0f);
5145
5146	position[0] = pData->position[0];
5147	position[1] = pData->position[1];
5148	position[2] = pData->position[2];
5149	position[3] = 1.0f;
5150
5151	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5152	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5153
5154	position[0] = pData->direction[0];
5155	position[1] = pData->direction[1];
5156	position[2] = pData->direction[2];
5157	position[3] = 1.0f;
5158
5159	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5160	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5161
5162	/*
5163	* opengl-ish and d3d-ish spot lights use too different models for the
5164	* light "intensity" as a function of the angle towards the main light direction,
5165	* so we only can approximate very roughly.
5166	* however spot lights are rather rarely used in games (if ever used at all).
5167	* furthermore if still used, probably nobody pays attention to such details.
5168	*/
5169	if (pData->falloff == 0)
5170	{
5171	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5172	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5173	* will always be 1.0 for both of them, and we don't have to care for the
5174	* rest of the rather complex calculation
5175	*/
5176	exponent = 0.0f;
5177	}
5178	else
5179	{
5180	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5181	if (rho < 0.0001f)
5182	rho = 0.0001f;
5183	exponent = -0.3f/log(cos(rho/2));
5184	}
5185	if (exponent > 128.0f)
5186	exponent = 128.0f;
5187
5188	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5189	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5190
5191	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
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_DIRECTIONAL:
5209	{
5210	GLfloat position[4];
5211
5212	position[0] = -pData->direction[0];
5213	position[1] = -pData->direction[1];
5214	position[2] = -pData->direction[2];
5215	position[3] = 0.0f;
5216
5217	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5218	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5219
5220	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5221	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5222
5223	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5224	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5225	break;
5226	}
5227
5228	case SVGA3D_LIGHTTYPE_SPOT2:
5229	default:
5230	Log(("Unsupported light type!!\n"));
5231	return VERR_INVALID_PARAMETER;
5232	}
5233
5234	/* Restore the modelview matrix */
5235	glPopMatrix();
5236
5237	return VINF_SUCCESS;
5238	}
5239
5240	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5241	{
5242	PVMSVGA3DCONTEXT pContext;
5243	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5244	AssertReturn(pState, VERR_NO_MEMORY);
5245
5246	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5247
5248	if ( cid >= pState->cContexts
5249	\|\| pState->papContexts[cid]->id != cid)
5250	{
5251	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5252	return VERR_INVALID_PARAMETER;
5253	}
5254	pContext = pState->papContexts[cid];
5255	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5256
5257	/* Store for vm state save/restore */
5258	if (index < SVGA3D_MAX_LIGHTS)
5259	pContext->state.aLightData[index].fEnabled = !!enabled;
5260	else
5261	AssertFailed();
5262
5263	if (enabled)
5264	{
5265	/* Load the default settings if none have been set yet. */
5266	if (!pContext->state.aLightData[index].fValidData)
5267	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5268	glEnable(GL_LIGHT0 + index);
5269	}
5270	else
5271	glDisable(GL_LIGHT0 + index);
5272
5273	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5274	return VINF_SUCCESS;
5275	}
5276
5277	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5278	{
5279	PVMSVGA3DCONTEXT pContext;
5280	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5281	AssertReturn(pState, VERR_NO_MEMORY);
5282
5283	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5284
5285	if ( cid >= pState->cContexts
5286	\|\| pState->papContexts[cid]->id != cid)
5287	{
5288	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5289	return VERR_INVALID_PARAMETER;
5290	}
5291	pContext = pState->papContexts[cid];
5292	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5293
5294	/* Save for vm state save/restore. */
5295	pContext->state.RectViewPort = *pRect;
5296	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5297
5298	/** @todo y-inversion for partial viewport coordinates? */
5299	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5300	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5301
5302	/* Reset the projection matrix as that relies on the viewport setting. */
5303	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5304	{
5305	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5306	}
5307	else
5308	{
5309	float matrix[16];
5310
5311	/* identity matrix if no matrix set. */
5312	memset(matrix, 0, sizeof(matrix));
5313	matrix[0] = 1.0;
5314	matrix[5] = 1.0;
5315	matrix[10] = 1.0;
5316	matrix[15] = 1.0;
5317	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5318	}
5319
5320	return VINF_SUCCESS;
5321	}
5322
5323	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5324	{
5325	PVMSVGA3DCONTEXT pContext;
5326	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5327	AssertReturn(pState, VERR_NO_MEMORY);
5328	double oglPlane[4];
5329
5330	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)));
5331	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5332
5333	if ( cid >= pState->cContexts
5334	\|\| pState->papContexts[cid]->id != cid)
5335	{
5336	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5337	return VERR_INVALID_PARAMETER;
5338	}
5339	pContext = pState->papContexts[cid];
5340	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5341
5342	/* Store for vm state save/restore. */
5343	pContext->state.aClipPlane[index].fValid = true;
5344	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5345
5346	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5347	oglPlane[0] = (double)plane[0];
5348	oglPlane[1] = (double)plane[1];
5349	oglPlane[2] = (double)plane[2];
5350	oglPlane[3] = (double)plane[3];
5351
5352	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5353	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5354
5355	return VINF_SUCCESS;
5356	}
5357
5358	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5359	{
5360	PVMSVGA3DCONTEXT pContext;
5361	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5362	AssertReturn(pState, VERR_NO_MEMORY);
5363
5364	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5365
5366	if ( cid >= pState->cContexts
5367	\|\| pState->papContexts[cid]->id != cid)
5368	{
5369	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5370	return VERR_INVALID_PARAMETER;
5371	}
5372	pContext = pState->papContexts[cid];
5373	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5374
5375	/* Store for vm state save/restore. */
5376	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5377	pContext->state.RectScissor = *pRect;
5378
5379	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5380	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5381
5382	return VINF_SUCCESS;
5383	}
5384
5385	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5386	{
5387	/* Convert byte color components to float (0-1.0) */
5388	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5389	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5390	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5391	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5392	}
5393
5394	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5395	uint32_t cRects, SVGA3dRect *pRect)
5396	{
5397	GLbitfield mask = 0;
5398	PVMSVGA3DCONTEXT pContext;
5399	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5400	AssertReturn(pState, VERR_NO_MEMORY);
5401	GLboolean fDepthWriteEnabled = GL_FALSE;
5402
5403	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));
5404
5405	if ( cid >= pState->cContexts
5406	\|\| pState->papContexts[cid]->id != cid)
5407	{
5408	Log(("vmsvga3dCommandClear invalid context id!\n"));
5409	return VERR_INVALID_PARAMETER;
5410	}
5411	pContext = pState->papContexts[cid];
5412	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5413
5414	if (clearFlag & SVGA3D_CLEAR_COLOR)
5415	{
5416	GLfloat red, green, blue, alpha;
5417
5418	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5419
5420	/* Set the color clear value. */
5421	glClearColor(red, green, blue, alpha);
5422
5423	mask \|= GL_COLOR_BUFFER_BIT;
5424	}
5425	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5426	{
5427	/** @todo possibly the same problem as with glDepthMask */
5428	glClearStencil(stencil);
5429	mask \|= GL_STENCIL_BUFFER_BIT;
5430	}
5431	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5432	{
5433	glClearDepth((GLdouble)depth);
5434	mask \|= GL_DEPTH_BUFFER_BIT;
5435
5436	/* glClear will not clear the depth buffer if writing is disabled. */
5437	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5438	if (fDepthWriteEnabled == GL_FALSE)
5439	glDepthMask(GL_TRUE);
5440	}
5441
5442	if (cRects)
5443	{
5444	/* Save the current scissor test bit and scissor box. */
5445	glPushAttrib(GL_SCISSOR_BIT);
5446	glEnable(GL_SCISSOR_TEST);
5447	for (unsigned i=0; i < cRects; i++)
5448	{
5449	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));
5450	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5451	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5452	glClear(mask);
5453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5454	}
5455	/* Restore the old scissor test bit and box */
5456	glPopAttrib();
5457	}
5458	else
5459	{
5460	glClear(mask);
5461	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5462	}
5463
5464	/* Restore depth write state. */
5465	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5466	&& fDepthWriteEnabled == GL_FALSE)
5467	glDepthMask(GL_FALSE);
5468
5469	return VINF_SUCCESS;
5470	}
5471
5472	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5473	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5474	{
5475	normalized = GL_FALSE;
5476	switch (identity.type)
5477	{
5478	case SVGA3D_DECLTYPE_FLOAT1:
5479	size = 1;
5480	type = GL_FLOAT;
5481	break;
5482	case SVGA3D_DECLTYPE_FLOAT2:
5483	size = 2;
5484	type = GL_FLOAT;
5485	break;
5486	case SVGA3D_DECLTYPE_FLOAT3:
5487	size = 3;
5488	type = GL_FLOAT;
5489	break;
5490	case SVGA3D_DECLTYPE_FLOAT4:
5491	size = 4;
5492	type = GL_FLOAT;
5493	break;
5494
5495	case SVGA3D_DECLTYPE_D3DCOLOR:
5496	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5497	type = GL_UNSIGNED_BYTE;
5498	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5499	break;
5500
5501	case SVGA3D_DECLTYPE_UBYTE4N:
5502	normalized = GL_TRUE;
5503	RT_FALL_THRU();
5504	case SVGA3D_DECLTYPE_UBYTE4:
5505	size = 4;
5506	type = GL_UNSIGNED_BYTE;
5507	break;
5508
5509	case SVGA3D_DECLTYPE_SHORT2N:
5510	normalized = GL_TRUE;
5511	RT_FALL_THRU();
5512	case SVGA3D_DECLTYPE_SHORT2:
5513	size = 2;
5514	type = GL_SHORT;
5515	break;
5516
5517	case SVGA3D_DECLTYPE_SHORT4N:
5518	normalized = GL_TRUE;
5519	RT_FALL_THRU();
5520	case SVGA3D_DECLTYPE_SHORT4:
5521	size = 4;
5522	type = GL_SHORT;
5523	break;
5524
5525	case SVGA3D_DECLTYPE_USHORT4N:
5526	normalized = GL_TRUE;
5527	size = 4;
5528	type = GL_UNSIGNED_SHORT;
5529	break;
5530
5531	case SVGA3D_DECLTYPE_USHORT2N:
5532	normalized = GL_TRUE;
5533	size = 2;
5534	type = GL_UNSIGNED_SHORT;
5535	break;
5536
5537	case SVGA3D_DECLTYPE_UDEC3:
5538	size = 3;
5539	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5540	break;
5541
5542	case SVGA3D_DECLTYPE_DEC3N:
5543	normalized = true;
5544	size = 3;
5545	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5546	break;
5547
5548	case SVGA3D_DECLTYPE_FLOAT16_2:
5549	size = 2;
5550	type = GL_HALF_FLOAT;
5551	break;
5552	case SVGA3D_DECLTYPE_FLOAT16_4:
5553	size = 4;
5554	type = GL_HALF_FLOAT;
5555	break;
5556	default:
5557	AssertFailedReturn(VERR_INVALID_PARAMETER);
5558	}
5559
5560	//pVertexElement->Method = identity.method;
5561	//pVertexElement->Usage = identity.usage;
5562
5563	return VINF_SUCCESS;
5564	}
5565
5566	/* Convert VMWare primitive type to its OpenGL equivalent. */
5567	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5568	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5569	{
5570	switch (PrimitiveType)
5571	{
5572	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5573	*pMode = GL_TRIANGLES;
5574	pcVertices = cPrimitiveCount 3;
5575	break;
5576	case SVGA3D_PRIMITIVE_POINTLIST:
5577	*pMode = GL_POINTS;
5578	*pcVertices = cPrimitiveCount;
5579	break;
5580	case SVGA3D_PRIMITIVE_LINELIST:
5581	*pMode = GL_LINES;
5582	pcVertices = cPrimitiveCount 2;
5583	break;
5584	case SVGA3D_PRIMITIVE_LINESTRIP:
5585	*pMode = GL_LINE_STRIP;
5586	*pcVertices = cPrimitiveCount + 1;
5587	break;
5588	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5589	*pMode = GL_TRIANGLE_STRIP;
5590	*pcVertices = cPrimitiveCount + 2;
5591	break;
5592	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5593	*pMode = GL_TRIANGLE_FAN;
5594	*pcVertices = cPrimitiveCount + 2;
5595	break;
5596	default:
5597	return VERR_INVALID_PARAMETER;
5598	}
5599	return VINF_SUCCESS;
5600	}
5601
5602	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5603	{
5604	int rc;
5605
5606	/* Reset the view matrix (also takes the world matrix into account). */
5607	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5608	{
5609	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5610	}
5611	else
5612	{
5613	float matrix[16];
5614
5615	/* identity matrix if no matrix set. */
5616	memset(matrix, 0, sizeof(matrix));
5617	matrix[0] = 1.0;
5618	matrix[5] = 1.0;
5619	matrix[10] = 1.0;
5620	matrix[15] = 1.0;
5621	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5622	}
5623
5624	/* Reset the projection matrix. */
5625	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5626	{
5627	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5628	}
5629	else
5630	{
5631	float matrix[16];
5632
5633	/* identity matrix if no matrix set. */
5634	memset(matrix, 0, sizeof(matrix));
5635	matrix[0] = 1.0;
5636	matrix[5] = 1.0;
5637	matrix[10] = 1.0;
5638	matrix[15] = 1.0;
5639	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5640	}
5641	AssertRC(rc);
5642	return rc;
5643	}
5644
5645	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5646	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5647	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5648	{
5649	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5650	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5651	PVMSVGA3DSURFACE pVertexSurface;
5652
5653	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5654	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5655
5656	pVertexSurface = pState->papSurfaces[sidVertex];
5657	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5658
5659	/* Create and/or bind the vertex buffer. */
5660	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5661	{
5662	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5663	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5664	pContext = &pState->SharedCtx;
5665	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5666
5667	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5668	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5669
5670	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5672
5673	Assert(pVertexSurface->fDirty);
5674	/** @todo rethink usage dynamic/static */
5675	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5676	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5677
5678	pVertexSurface->pMipmapLevels[0].fDirty = false;
5679	pVertexSurface->fDirty = false;
5680
5681	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5682
5683	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5684	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5685
5686	pContext = pSavedCtx;
5687	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5688	}
5689
5690	Assert(pVertexSurface->fDirty == false);
5691	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5692	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5693
5694	/* Setup the vertex declarations. */
5695	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5696	{
5697	GLint size;
5698	GLenum type;
5699	GLboolean normalized;
5700	GLuint index = iVertexDeclBase + iVertex;
5701
5702	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));
5703
5704	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5705	AssertRCReturn(rc, rc);
5706
5707	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5708	{
5709	/* Use numbered vertex arrays when shaders are active. */
5710	pState->ext.glEnableVertexAttribArray(index);
5711	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5712	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5713	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5714	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5715
5716	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5717	pState->ext.glVertexAttribDivisor(index, divisor);
5718	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5719
5720	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5721	}
5722	else
5723	{
5724	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5725	switch (pVertexDecl[iVertex].identity.usage)
5726	{
5727	case SVGA3D_DECLUSAGE_POSITIONT:
5728	case SVGA3D_DECLUSAGE_POSITION:
5729	{
5730	glEnableClientState(GL_VERTEX_ARRAY);
5731	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5732	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5733	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5734	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5735	break;
5736	}
5737	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5738	AssertFailed();
5739	break;
5740	case SVGA3D_DECLUSAGE_BLENDINDICES:
5741	AssertFailed();
5742	break;
5743	case SVGA3D_DECLUSAGE_NORMAL:
5744	glEnableClientState(GL_NORMAL_ARRAY);
5745	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5746	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5747	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5748	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5749	break;
5750	case SVGA3D_DECLUSAGE_PSIZE:
5751	AssertFailed();
5752	break;
5753	case SVGA3D_DECLUSAGE_TEXCOORD:
5754	/* Specify the affected texture unit. */
5755	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5756	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5757	#else
5758	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5759	#endif
5760	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5761	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5762	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5763	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5764	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5765	break;
5766	case SVGA3D_DECLUSAGE_TANGENT:
5767	AssertFailed();
5768	break;
5769	case SVGA3D_DECLUSAGE_BINORMAL:
5770	AssertFailed();
5771	break;
5772	case SVGA3D_DECLUSAGE_TESSFACTOR:
5773	AssertFailed();
5774	break;
5775	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5776	glEnableClientState(GL_COLOR_ARRAY);
5777	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5778	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5779	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5780	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5781	break;
5782	case SVGA3D_DECLUSAGE_FOG:
5783	glEnableClientState(GL_FOG_COORD_ARRAY);
5784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5785	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5786	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5787	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5788	break;
5789	case SVGA3D_DECLUSAGE_DEPTH:
5790	AssertFailed();
5791	break;
5792	case SVGA3D_DECLUSAGE_SAMPLE:
5793	AssertFailed();
5794	break;
5795	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5796	}
5797	}
5798
5799	#ifdef LOG_ENABLED
5800	if (pVertexDecl[iVertex].array.stride == 0)
5801	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5802	#endif
5803	}
5804
5805	return VINF_SUCCESS;
5806	}
5807
5808	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5809	{
5810	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5811
5812	/* Clean up the vertex declarations. */
5813	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5814	{
5815	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
5816	{
5817	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
5818	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
5819	vmsvga3dResetTransformMatrices(pThis, pContext);
5820	}
5821
5822	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5823	{
5824	/* Use numbered vertex arrays when shaders are active. */
5825	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5827	}
5828	else
5829	{
5830	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5831	switch (pVertexDecl[iVertex].identity.usage)
5832	{
5833	case SVGA3D_DECLUSAGE_POSITION:
5834	case SVGA3D_DECLUSAGE_POSITIONT:
5835	glDisableClientState(GL_VERTEX_ARRAY);
5836	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5837	break;
5838	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5839	break;
5840	case SVGA3D_DECLUSAGE_BLENDINDICES:
5841	break;
5842	case SVGA3D_DECLUSAGE_NORMAL:
5843	glDisableClientState(GL_NORMAL_ARRAY);
5844	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5845	break;
5846	case SVGA3D_DECLUSAGE_PSIZE:
5847	break;
5848	case SVGA3D_DECLUSAGE_TEXCOORD:
5849	/* Specify the affected texture unit. */
5850	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5851	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5852	#else
5853	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5854	#endif
5855	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5856	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5857	break;
5858	case SVGA3D_DECLUSAGE_TANGENT:
5859	break;
5860	case SVGA3D_DECLUSAGE_BINORMAL:
5861	break;
5862	case SVGA3D_DECLUSAGE_TESSFACTOR:
5863	break;
5864	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
5865	glDisableClientState(GL_COLOR_ARRAY);
5866	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5867	break;
5868	case SVGA3D_DECLUSAGE_FOG:
5869	glDisableClientState(GL_FOG_COORD_ARRAY);
5870	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5871	break;
5872	case SVGA3D_DECLUSAGE_DEPTH:
5873	break;
5874	case SVGA3D_DECLUSAGE_SAMPLE:
5875	break;
5876	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5877	}
5878	}
5879	}
5880	/* Unbind the vertex buffer after usage. */
5881	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
5882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5883	return VINF_SUCCESS;
5884	}
5885
5886	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
5887	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
5888	SVGA3dVertexDivisor *pVertexDivisor)
5889	{
5890	RT_NOREF(pVertexDivisor);
5891	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5892	AssertReturn(pState, VERR_INTERNAL_ERROR);
5893	PVMSVGA3DCONTEXT pContext;
5894	int rc = VERR_NOT_IMPLEMENTED;
5895	uint32_t iCurrentVertex;
5896
5897	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
5898
5899	/* Caller already check these, but it cannot hurt to check again... */
5900	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
5901	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
5902	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
5903
5904	if (!cVertexDivisor)
5905	pVertexDivisor = NULL; /* Be sure. */
5906
5907	if ( cid >= pState->cContexts
5908	\|\| pState->papContexts[cid]->id != cid)
5909	{
5910	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
5911	return VERR_INVALID_PARAMETER;
5912	}
5913	pContext = pState->papContexts[cid];
5914	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5915
5916	/* Check for pretransformed vertex declarations. */
5917	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5918	{
5919	switch (pVertexDecl[iVertex].identity.usage)
5920	{
5921	case SVGA3D_DECLUSAGE_POSITIONT:
5922	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
5923	RT_FALL_THRU();
5924	case SVGA3D_DECLUSAGE_POSITION:
5925	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
5926	pContext->state.RectViewPort.h,
5927	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
5928	break;
5929	default: /* Shut up MSC. */ break;
5930	}
5931	}
5932
5933	/* Try to figure out if instancing is used.
5934	* Support simple instancing case with one set of indexed data and one set per-instance data.
5935	*/
5936	uint32_t cInstances = 0;
5937	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
5938	{
5939	if (pVertexDivisor[iVertexDivisor].s.indexedData)
5940	{
5941	if (cInstances == 0)
5942	cInstances = pVertexDivisor[iVertexDivisor].s.count;
5943	else
5944	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
5945	}
5946	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
5947	{
5948	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
5949	}
5950	}
5951
5952	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
5953	if (pContext->pShaderContext)
5954	{
5955	uint32_t rtHeight = 0;
5956
5957	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
5958	{
5959	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
5960	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
5961	}
5962
5963	ShaderUpdateState(pContext->pShaderContext, rtHeight);
5964	}
5965
5966	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
5967	iCurrentVertex = 0;
5968	while (iCurrentVertex < numVertexDecls)
5969	{
5970	uint32_t sidVertex = SVGA_ID_INVALID;
5971	uint32_t iVertex;
5972
5973	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
5974	{
5975	if ( sidVertex != SVGA_ID_INVALID
5976	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
5977	)
5978	break;
5979	sidVertex = pVertexDecl[iVertex].array.surfaceId;
5980	}
5981
5982	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
5983	&pVertexDecl[iCurrentVertex], pVertexDivisor);
5984	AssertRCReturn(rc, rc);
5985
5986	iCurrentVertex = iVertex;
5987	}
5988
5989	/* Now draw the primitives. */
5990	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
5991	{
5992	GLenum modeDraw;
5993	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
5994	PVMSVGA3DSURFACE pIndexSurface = NULL;
5995	unsigned cVertices;
5996
5997	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
5998	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
5999	if (RT_FAILURE(rc))
6000	{
6001	AssertRC(rc);
6002	goto internal_error;
6003	}
6004
6005	if (sidIndex != SVGA3D_INVALID_ID)
6006	{
6007	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6008
6009	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6010	\|\| sidIndex >= pState->cSurfaces
6011	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6012	{
6013	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6014	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6015	rc = VERR_INVALID_PARAMETER;
6016	goto internal_error;
6017	}
6018	pIndexSurface = pState->papSurfaces[sidIndex];
6019	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6020
6021	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6022	{
6023	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6024	pContext = &pState->SharedCtx;
6025	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6026
6027	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6028	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6029
6030	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6031	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6032
6033	Assert(pIndexSurface->fDirty);
6034
6035	/** @todo rethink usage dynamic/static */
6036	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6037	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6038
6039	pIndexSurface->pMipmapLevels[0].fDirty = false;
6040	pIndexSurface->fDirty = false;
6041
6042	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6043
6044	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6046
6047	pContext = pState->papContexts[cid];
6048	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6049	}
6050	Assert(pIndexSurface->fDirty == false);
6051
6052	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6053	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6054	}
6055
6056	if (!pIndexSurface)
6057	{
6058	/* Render without an index buffer */
6059	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6060	if (cInstances == 0)
6061	{
6062	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6063	}
6064	else
6065	{
6066	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6067	}
6068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6069	}
6070	else
6071	{
6072	GLenum indexType;
6073
6074	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6075	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6076
6077	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6078	{
6079	indexType = GL_UNSIGNED_BYTE;
6080	}
6081	else
6082	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6083	{
6084	indexType = GL_UNSIGNED_SHORT;
6085	}
6086	else
6087	{
6088	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6089	indexType = GL_UNSIGNED_INT;
6090	}
6091
6092	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));
6093	if (cInstances == 0)
6094	{
6095	/* Render with an index buffer */
6096	if (pRange[iPrimitive].indexBias == 0)
6097	glDrawElements(modeDraw,
6098	cVertices,
6099	indexType,
6100	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6101	else
6102	pState->ext.glDrawElementsBaseVertex(modeDraw,
6103	cVertices,
6104	indexType,
6105	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6106	pRange[iPrimitive].indexBias); /* basevertex */
6107	}
6108	else
6109	{
6110	/* Render with an index buffer */
6111	if (pRange[iPrimitive].indexBias == 0)
6112	pState->ext.glDrawElementsInstanced(modeDraw,
6113	cVertices,
6114	indexType,
6115	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6116	cInstances);
6117	else
6118	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6119	cVertices,
6120	indexType,
6121	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6122	cInstances,
6123	pRange[iPrimitive].indexBias); /* basevertex */
6124	}
6125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6126
6127	/* Unbind the index buffer after usage. */
6128	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6130	}
6131	}
6132
6133	internal_error:
6134
6135	/* Deactivate the vertex declarations. */
6136	iCurrentVertex = 0;
6137	while (iCurrentVertex < numVertexDecls)
6138	{
6139	uint32_t sidVertex = SVGA_ID_INVALID;
6140	uint32_t iVertex;
6141
6142	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6143	{
6144	if ( sidVertex != SVGA_ID_INVALID
6145	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6146	)
6147	break;
6148	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6149	}
6150
6151	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6152	AssertRCReturn(rc, rc);
6153
6154	iCurrentVertex = iVertex;
6155	}
6156	#ifdef DEBUG
6157	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6158	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6159	{
6160	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6161	{
6162	PVMSVGA3DSURFACE pTexture;
6163	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6164	AssertContinue(RT_SUCCESS(rc2));
6165
6166	GLint activeTextureUnit = 0;
6167	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6168	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6169
6170	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6171	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6172
6173	GLint activeTexture = 0;
6174	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6175	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6176
6177	pState->ext.glActiveTexture(activeTextureUnit);
6178	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6179
6180	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6181	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6182	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6183	}
6184	}
6185	#endif
6186
6187	#if 0
6188	/* Dump render target to a bitmap. */
6189	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6190	{
6191	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6192	PVMSVGA3DSURFACE pSurface;
6193	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6194	if (RT_SUCCESS(rc2))
6195	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6196	}
6197	#endif
6198
6199	return rc;
6200	}
6201
6202
6203	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6204	{
6205	PVMSVGA3DCONTEXT pContext;
6206	PVMSVGA3DSHADER pShader;
6207	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6208	AssertReturn(pState, VERR_NO_MEMORY);
6209	int rc;
6210
6211	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6212	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6213
6214	if ( cid >= pState->cContexts
6215	\|\| pState->papContexts[cid]->id != cid)
6216	{
6217	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6218	return VERR_INVALID_PARAMETER;
6219	}
6220	pContext = pState->papContexts[cid];
6221	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6222
6223	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6224	if (type == SVGA3D_SHADERTYPE_VS)
6225	{
6226	if (shid >= pContext->cVertexShaders)
6227	{
6228	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6229	AssertReturn(pvNew, VERR_NO_MEMORY);
6230	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6231	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6232	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6233	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6234	pContext->cVertexShaders = shid + 1;
6235	}
6236	/* If one already exists with this id, then destroy it now. */
6237	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6238	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6239
6240	pShader = &pContext->paVertexShader[shid];
6241	}
6242	else
6243	{
6244	Assert(type == SVGA3D_SHADERTYPE_PS);
6245	if (shid >= pContext->cPixelShaders)
6246	{
6247	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6248	AssertReturn(pvNew, VERR_NO_MEMORY);
6249	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6250	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6251	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6252	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6253	pContext->cPixelShaders = shid + 1;
6254	}
6255	/* If one already exists with this id, then destroy it now. */
6256	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6257	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6258
6259	pShader = &pContext->paPixelShader[shid];
6260	}
6261
6262	memset(pShader, 0, sizeof(*pShader));
6263	pShader->id = shid;
6264	pShader->cid = cid;
6265	pShader->type = type;
6266	pShader->cbData = cbData;
6267	pShader->pShaderProgram = RTMemAllocZ(cbData);
6268	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6269	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6270
6271	#ifdef DUMP_SHADER_DISASSEMBLY
6272	LPD3DXBUFFER pDisassembly;
6273	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6274	if (hr == D3D_OK)
6275	{
6276	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6277	pDisassembly->Release();
6278	}
6279	#endif
6280
6281	switch (type)
6282	{
6283	case SVGA3D_SHADERTYPE_VS:
6284	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6285	break;
6286
6287	case SVGA3D_SHADERTYPE_PS:
6288	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6289	break;
6290
6291	default:
6292	AssertFailedReturn(VERR_INVALID_PARAMETER);
6293	}
6294	if (rc != VINF_SUCCESS)
6295	{
6296	RTMemFree(pShader->pShaderProgram);
6297	memset(pShader, 0, sizeof(*pShader));
6298	pShader->id = SVGA3D_INVALID_ID;
6299	}
6300
6301	return rc;
6302	}
6303
6304	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6305	{
6306	PVMSVGA3DCONTEXT pContext;
6307	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6308	AssertReturn(pState, VERR_NO_MEMORY);
6309	PVMSVGA3DSHADER pShader = NULL;
6310	int rc;
6311
6312	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6313
6314	if ( cid >= pState->cContexts
6315	\|\| pState->papContexts[cid]->id != cid)
6316	{
6317	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6318	return VERR_INVALID_PARAMETER;
6319	}
6320	pContext = pState->papContexts[cid];
6321	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6322
6323	if (type == SVGA3D_SHADERTYPE_VS)
6324	{
6325	if ( shid < pContext->cVertexShaders
6326	&& pContext->paVertexShader[shid].id == shid)
6327	{
6328	pShader = &pContext->paVertexShader[shid];
6329	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6330	AssertRC(rc);
6331	}
6332	}
6333	else
6334	{
6335	Assert(type == SVGA3D_SHADERTYPE_PS);
6336	if ( shid < pContext->cPixelShaders
6337	&& pContext->paPixelShader[shid].id == shid)
6338	{
6339	pShader = &pContext->paPixelShader[shid];
6340	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6341	AssertRC(rc);
6342	}
6343	}
6344
6345	if (pShader)
6346	{
6347	if (pShader->pShaderProgram)
6348	RTMemFree(pShader->pShaderProgram);
6349	memset(pShader, 0, sizeof(*pShader));
6350	pShader->id = SVGA3D_INVALID_ID;
6351	}
6352	else
6353	AssertFailedReturn(VERR_INVALID_PARAMETER);
6354
6355	return VINF_SUCCESS;
6356	}
6357
6358	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6359	{
6360	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6361	AssertReturn(pState, VERR_NO_MEMORY);
6362	int rc;
6363
6364	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6365
6366	if ( !pContext
6367	&& cid < pState->cContexts
6368	&& pState->papContexts[cid]->id == cid)
6369	pContext = pState->papContexts[cid];
6370	else if (!pContext)
6371	{
6372	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6373	Log(("vmsvga3dShaderSet invalid context id!\n"));
6374	return VERR_INVALID_PARAMETER;
6375	}
6376	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6377
6378	if (type == SVGA3D_SHADERTYPE_VS)
6379	{
6380	/* Save for vm state save/restore. */
6381	pContext->state.shidVertex = shid;
6382	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6383
6384	if ( shid < pContext->cVertexShaders
6385	&& pContext->paVertexShader[shid].id == shid)
6386	{
6387	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6388	Assert(type == pShader->type);
6389
6390	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6391	AssertRCReturn(rc, rc);
6392	}
6393	else
6394	if (shid == SVGA_ID_INVALID)
6395	{
6396	/* Unselect shader. */
6397	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6398	AssertRCReturn(rc, rc);
6399	}
6400	else
6401	AssertFailedReturn(VERR_INVALID_PARAMETER);
6402	}
6403	else
6404	{
6405	/* Save for vm state save/restore. */
6406	pContext->state.shidPixel = shid;
6407	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6408
6409	Assert(type == SVGA3D_SHADERTYPE_PS);
6410	if ( shid < pContext->cPixelShaders
6411	&& pContext->paPixelShader[shid].id == shid)
6412	{
6413	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6414	Assert(type == pShader->type);
6415
6416	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6417	AssertRCReturn(rc, rc);
6418	}
6419	else
6420	if (shid == SVGA_ID_INVALID)
6421	{
6422	/* Unselect shader. */
6423	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6424	AssertRCReturn(rc, rc);
6425	}
6426	else
6427	AssertFailedReturn(VERR_INVALID_PARAMETER);
6428	}
6429
6430	return VINF_SUCCESS;
6431	}
6432
6433	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6434	{
6435	PVMSVGA3DCONTEXT pContext;
6436	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6437	AssertReturn(pState, VERR_NO_MEMORY);
6438	int rc;
6439
6440	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6441
6442	if ( cid >= pState->cContexts
6443	\|\| pState->papContexts[cid]->id != cid)
6444	{
6445	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6446	return VERR_INVALID_PARAMETER;
6447	}
6448	pContext = pState->papContexts[cid];
6449	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6450
6451	for (uint32_t i = 0; i < cRegisters; i++)
6452	{
6453	#ifdef LOG_ENABLED
6454	switch (ctype)
6455	{
6456	case SVGA3D_CONST_TYPE_FLOAT:
6457	{
6458	float pValuesF = (float )pValues;
6459	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)));
6460	break;
6461	}
6462
6463	case SVGA3D_CONST_TYPE_INT:
6464	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6465	break;
6466
6467	case SVGA3D_CONST_TYPE_BOOL:
6468	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6469	break;
6470	}
6471	#endif
6472	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6473	}
6474
6475	switch (type)
6476	{
6477	case SVGA3D_SHADERTYPE_VS:
6478	switch (ctype)
6479	{
6480	case SVGA3D_CONST_TYPE_FLOAT:
6481	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6482	break;
6483
6484	case SVGA3D_CONST_TYPE_INT:
6485	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6486	break;
6487
6488	case SVGA3D_CONST_TYPE_BOOL:
6489	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6490	break;
6491
6492	default:
6493	AssertFailedReturn(VERR_INVALID_PARAMETER);
6494	}
6495	AssertRCReturn(rc, rc);
6496	break;
6497
6498	case SVGA3D_SHADERTYPE_PS:
6499	switch (ctype)
6500	{
6501	case SVGA3D_CONST_TYPE_FLOAT:
6502	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6503	break;
6504
6505	case SVGA3D_CONST_TYPE_INT:
6506	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6507	break;
6508
6509	case SVGA3D_CONST_TYPE_BOOL:
6510	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6511	break;
6512
6513	default:
6514	AssertFailedReturn(VERR_INVALID_PARAMETER);
6515	}
6516	AssertRCReturn(rc, rc);
6517	break;
6518
6519	default:
6520	AssertFailedReturn(VERR_INVALID_PARAMETER);
6521	}
6522
6523	return VINF_SUCCESS;
6524	}
6525
6526	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6527	{
6528	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6529	GLuint idQuery = 0;
6530	pState->ext.glGenQueries(1, &idQuery);
6531	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6532	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6533	pContext->occlusion.idQuery = idQuery;
6534	return VINF_SUCCESS;
6535	}
6536
6537	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6538	{
6539	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6540	if (pContext->occlusion.idQuery)
6541	{
6542	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6543	}
6544	return VINF_SUCCESS;
6545	}
6546
6547	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6548	{
6549	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6550	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6551	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6552	return VINF_SUCCESS;
6553	}
6554
6555	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6556	{
6557	RT_NOREF(pContext);
6558	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6559	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6560	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6561	return VINF_SUCCESS;
6562	}
6563
6564	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6565	{
6566	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6567	GLuint pixels = 0;
6568	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6569	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6570
6571	*pu32Pixels = (uint32_t)pixels;
6572	return VINF_SUCCESS;
6573	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 75696

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