DevVGA-SVGA3d-ogl.cpp@ 84742

Last change on this file since 84742 was 84742, checked in by vboxsync, 4 years ago
Devices/Graphics: experimental GLX graphics output
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 84742 2020-06-09 17:49:09Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2020 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	#include <VBox/AssertGuest.h>
36
37	#include <iprt/assert.h>
38	#include <iprt/semaphore.h>
39	#include <iprt/uuid.h>
40	#include <iprt/mem.h>
41
42	#include <VBoxVideo.h> /* required by DevVGA.h */
43	#include <VBoxVideo3D.h>
44
45	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
46	#include "DevVGA.h"
47
48	#include "DevVGA-SVGA.h"
49	#include "DevVGA-SVGA3d.h"
50	#include "DevVGA-SVGA3d-internal.h"
51
52	#ifdef DUMP_SHADER_DISASSEMBLY
53	# include <d3dx9shader.h>
54	#endif
55
56	#include <stdlib.h>
57	#include <math.h>
58	#include <float.h> /* FLT_MIN */
59
60
61	/*********************************************************************************************************************************
62	* Defined Constants And Macros *
63	*********************************************************************************************************************************/
64	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
65	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
66	#endif
67
68	#ifdef VMSVGA3D_DYNAMIC_LOAD
69	# define OGLGETPROCADDRESS glLdrGetProcAddress
70	#else
71	#ifdef RT_OS_WINDOWS
72	# define OGLGETPROCADDRESS MyWinGetProcAddress
73	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
74	{
75	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
76	PROC p = wglGetProcAddress(pszSymbol);
77	if (RT_VALID_PTR(p))
78	return p;
79	return 0;
80	}
81	#elif defined(RT_OS_DARWIN)
82	# include <dlfcn.h>
83	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
84	/** Resolves an OpenGL symbol. */
85	static void MyNSGLGetProcAddress(const char pszSymbol)
86	{
87	/* Another copy in shaderapi.c. */
88	static void *s_pvImage = NULL;
89	if (s_pvImage == NULL)
90	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
91	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
92	}
93
94	#else
95	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
96	#endif
97	#endif
98
99	/* Invert y-coordinate for OpenGL's bottom left origin. */
100	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->paMipmapLevels[0].mipmapSize.height - (y_coordinate))
101	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
102
103	/**
104	* Macro for doing something and then checking for errors during initialization.
105	* Uses AssertLogRelMsg.
106	*/
107	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
108	do \
109	{ \
110	a_Expr; \
111	GLenum iGlError = glGetError(); \
112	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
113	} while (0)
114
115	/**
116	* Macro for doing something and then checking for errors during initialization,
117	* doing the same in the other context when enabled.
118	*
119	* This will try both profiles in dual profile builds. Caller must be in the
120	* default context.
121	*
122	* Uses AssertLogRelMsg to indicate trouble.
123	*/
124	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
125	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
126	do \
127	{ \
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 iGlError = glGetError(); \
131	if (iGlError != GL_NO_ERROR) \
132	{ \
133	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
134	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
135	a_Expr; \
136	GLenum iGlError2 = glGetError(); \
137	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
138	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
139	} \
140	} while (0)
141	#else
142	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
143	#endif
144
145
146	/*********************************************************************************************************************************
147	* Global Variables *
148	*********************************************************************************************************************************/
149	/* Define the default light parameters as specified by MSDN. */
150	/** @todo move out; fetched from Wine */
151	const SVGA3dLightData vmsvga3d_default_light =
152	{
153	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
154	false, /* inWorldSpace */
155	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
156	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
157	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
158	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
159	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
160	0.0f, /* range */
161	0.0f, /* falloff */
162	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
163	0.0f, /* theta */
164	0.0f /* phi */
165	};
166
167
168	/*********************************************************************************************************************************
169	* Internal Functions *
170	*********************************************************************************************************************************/
171	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid);
172	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
173
174	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
175	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
176
177
178	/**
179	* Checks if the given OpenGL extension is supported.
180	*
181	* @returns true if supported, false if not.
182	* @param pState The VMSVGA3d state.
183	* @param rsMinGLVersion The OpenGL version that introduced this feature
184	* into the core.
185	* @param pszWantedExtension The name of the OpenGL extension we want padded
186	* with one space at each end.
187	* @remarks Init time only.
188	*/
189	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
190	{
191	RT_NOREF(rsMinGLVersion);
192	/* check padding. */
193	Assert(pszWantedExtension[0] == ' ');
194	Assert(pszWantedExtension[1] != ' ');
195	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
196
197	/* Look it up. */
198	bool fRet = false;
199	if (strstr(pState->pszExtensions, pszWantedExtension))
200	fRet = true;
201
202	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
203	#ifdef RT_OS_DARWIN
204	AssertMsg( rsMinGLVersion == 0.0
205	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
206	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
207	("%s actual:%d min:%d fRet=%d\n",
208	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
209	#else
210	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
211	("%s actual:%d min:%d fRet=%d\n",
212	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
213	#endif
214	return fRet;
215	}
216
217
218	/**
219	* Outputs GL_EXTENSIONS list to the release log.
220	*/
221	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
222	{
223	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
224	bool fBuffered = RTLogRelSetBuffering(true);
225
226	/*
227	* Determin the column widths first.
228	*/
229	size_t acchWidths[4] = { 1, 1, 1, 1 };
230	uint32_t i;
231	const char *psz = pszExtensions;
232	for (i = 0; ; i++)
233	{
234	while (*psz == ' ')
235	psz++;
236	if (!*psz)
237	break;
238
239	const char *pszEnd = strchr(psz, ' ');
240	AssertBreak(pszEnd);
241	size_t cch = pszEnd - psz;
242
243	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
244	if (acchWidths[iColumn] < cch)
245	acchWidths[iColumn] = cch;
246
247	psz = pszEnd;
248	}
249
250	/*
251	* Output it.
252	*/
253	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
254	psz = pszExtensions;
255	for (i = 0; ; i++)
256	{
257	while (*psz == ' ')
258	psz++;
259	if (!*psz)
260	break;
261
262	const char *pszEnd = strchr(psz, ' ');
263	AssertBreak(pszEnd);
264	size_t cch = pszEnd - psz;
265
266	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
267	if (iColumn == 0)
268	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
269	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
270	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
271	else
272	LogRel((" %.*s", cch, psz));
273
274	psz = pszEnd;
275	}
276
277	RTLogRelSetBuffering(fBuffered);
278	LogRel(("\n"));
279	}
280
281	/**
282	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
283	* @a ppszExtensions.
284	*
285	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
286	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
287	* @param fGLProfileVersion The OpenGL profile version.
288	*/
289	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
290	{
291	int rc;
292	*ppszExtensions = NULL;
293
294	/*
295	* Try the old glGetString interface first.
296	*/
297	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
298	if (pszExtensions)
299	{
300	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
301	AssertLogRelRCReturn(rc, rc);
302	}
303	else
304	{
305	/*
306	* The new interface where each extension string is retrieved separately.
307	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
308	* the above GL_EXTENSIONS error lingers on darwin. sucks.
309	*/
310	#ifndef GL_NUM_EXTENSIONS
311	# define GL_NUM_EXTENSIONS 0x821D
312	#endif
313	GLint cExtensions = 1024;
314	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
315	Assert(cExtensions != 1024);
316
317	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
318	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
319
320	rc = RTStrAAppend(ppszExtensions, " ");
321	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
322	{
323	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
324	if (pszExt)
325	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
326	}
327	AssertRCReturn(rc, rc);
328	}
329
330	#if 1
331	/*
332	* Add extensions promoted into the core OpenGL profile.
333	*/
334	static const struct
335	{
336	float fGLVersion;
337	const char *pszzExtensions;
338	} s_aPromotedExtensions[] =
339	{
340	{
341	1.1f,
342	" GL_EXT_vertex_array \0"
343	" GL_EXT_polygon_offset \0"
344	" GL_EXT_blend_logic_op \0"
345	" GL_EXT_texture \0"
346	" GL_EXT_copy_texture \0"
347	" GL_EXT_subtexture \0"
348	" GL_EXT_texture_object \0"
349	" GL_ARB_framebuffer_object \0"
350	" GL_ARB_map_buffer_range \0"
351	" GL_ARB_vertex_array_object \0"
352	"\0"
353	},
354	{
355	1.2f,
356	" EXT_texture3D \0"
357	" EXT_bgra \0"
358	" EXT_packed_pixels \0"
359	" EXT_rescale_normal \0"
360	" EXT_separate_specular_color \0"
361	" SGIS_texture_edge_clamp \0"
362	" SGIS_texture_lod \0"
363	" EXT_draw_range_elements \0"
364	"\0"
365	},
366	{
367	1.3f,
368	" GL_ARB_texture_compression \0"
369	" GL_ARB_texture_cube_map \0"
370	" GL_ARB_multisample \0"
371	" GL_ARB_multitexture \0"
372	" GL_ARB_texture_env_add \0"
373	" GL_ARB_texture_env_combine \0"
374	" GL_ARB_texture_env_dot3 \0"
375	" GL_ARB_texture_border_clamp \0"
376	" GL_ARB_transpose_matrix \0"
377	"\0"
378	},
379	{
380	1.5f,
381	" GL_SGIS_generate_mipmap \0"
382	/" GL_NV_blend_equare \0"/
383	" GL_ARB_depth_texture \0"
384	" GL_ARB_shadow \0"
385	" GL_EXT_fog_coord \0"
386	" GL_EXT_multi_draw_arrays \0"
387	" GL_ARB_point_parameters \0"
388	" GL_EXT_secondary_color \0"
389	" GL_EXT_blend_func_separate \0"
390	" GL_EXT_stencil_wrap \0"
391	" GL_ARB_texture_env_crossbar \0"
392	" GL_EXT_texture_lod_bias \0"
393	" GL_ARB_texture_mirrored_repeat \0"
394	" GL_ARB_window_pos \0"
395	"\0"
396	},
397	{
398	1.6f,
399	" GL_ARB_vertex_buffer_object \0"
400	" GL_ARB_occlusion_query \0"
401	" GL_EXT_shadow_funcs \0"
402	},
403	{
404	2.0f,
405	" GL_ARB_shader_objects \0" /??/
406	" GL_ARB_vertex_shader \0" /??/
407	" GL_ARB_fragment_shader \0" /??/
408	" GL_ARB_shading_language_100 \0" /??/
409	" GL_ARB_draw_buffers \0"
410	" GL_ARB_texture_non_power_of_two \0"
411	" GL_ARB_point_sprite \0"
412	" GL_ATI_separate_stencil \0"
413	" GL_EXT_stencil_two_side \0"
414	"\0"
415	},
416	{
417	2.1f,
418	" GL_ARB_pixel_buffer_object \0"
419	" GL_EXT_texture_sRGB \0"
420	"\0"
421	},
422	{
423	3.0f,
424	" GL_ARB_framebuffer_object \0"
425	" GL_ARB_map_buffer_range \0"
426	" GL_ARB_vertex_array_object \0"
427	"\0"
428	},
429	{
430	3.1f,
431	" GL_ARB_copy_buffer \0"
432	" GL_ARB_uniform_buffer_object \0"
433	"\0"
434	},
435	{
436	3.2f,
437	" GL_ARB_vertex_array_bgra \0"
438	" GL_ARB_draw_elements_base_vertex \0"
439	" GL_ARB_fragment_coord_conventions \0"
440	" GL_ARB_provoking_vertex \0"
441	" GL_ARB_seamless_cube_map \0"
442	" GL_ARB_texture_multisample \0"
443	" GL_ARB_depth_clamp \0"
444	" GL_ARB_sync \0"
445	" GL_ARB_geometry_shader4 \0" /??/
446	"\0"
447	},
448	{
449	3.3f,
450	" GL_ARB_blend_func_extended \0"
451	" GL_ARB_sampler_objects \0"
452	" GL_ARB_explicit_attrib_location \0"
453	" GL_ARB_occlusion_query2 \0"
454	" GL_ARB_shader_bit_encoding \0"
455	" GL_ARB_texture_rgb10_a2ui \0"
456	" GL_ARB_texture_swizzle \0"
457	" GL_ARB_timer_query \0"
458	" GL_ARB_vertex_type_2_10_10_10_rev \0"
459	"\0"
460	},
461	{
462	4.0f,
463	" GL_ARB_texture_query_lod \0"
464	" GL_ARB_draw_indirect \0"
465	" GL_ARB_gpu_shader5 \0"
466	" GL_ARB_gpu_shader_fp64 \0"
467	" GL_ARB_shader_subroutine \0"
468	" GL_ARB_tessellation_shader \0"
469	" GL_ARB_texture_buffer_object_rgb32 \0"
470	" GL_ARB_texture_cube_map_array \0"
471	" GL_ARB_texture_gather \0"
472	" GL_ARB_transform_feedback2 \0"
473	" GL_ARB_transform_feedback3 \0"
474	"\0"
475	},
476	{
477	4.1f,
478	" GL_ARB_ES2_compatibility \0"
479	" GL_ARB_get_program_binary \0"
480	" GL_ARB_separate_shader_objects \0"
481	" GL_ARB_shader_precision \0"
482	" GL_ARB_vertex_attrib_64bit \0"
483	" GL_ARB_viewport_array \0"
484	"\0"
485	}
486	};
487
488	uint32_t cPromoted = 0;
489	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
490	{
491	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
492	while (*pszExt)
493	{
494	# ifdef VBOX_STRICT
495	size_t cchExt = strlen(pszExt);
496	Assert(cchExt > 3);
497	Assert(pszExt[0] == ' ');
498	Assert(pszExt[1] != ' ');
499	Assert(pszExt[cchExt - 2] != ' ');
500	Assert(pszExt[cchExt - 1] == ' ');
501	# endif
502
503	if (strstr(*ppszExtensions, pszExt) == NULL)
504	{
505	if (cPromoted++ == 0)
506	{
507	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
508	AssertRCReturn(rc, rc);
509	}
510
511	rc = RTStrAAppend(ppszExtensions, pszExt);
512	AssertRCReturn(rc, rc);
513	}
514
515	pszExt = strchr(pszExt, '\0') + 1;
516	}
517	}
518	#endif
519
520	return VINF_SUCCESS;
521	}
522
523	/** Check whether this is an Intel GL driver.
524	*
525	* @returns true if this seems to be some Intel graphics.
526	*/
527	static bool vmsvga3dIsVendorIntel(void)
528	{
529	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
530	}
531
532	/**
533	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
534	*/
535	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
536	{
537	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
538	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
539	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
540	#else
541	NOREF(pThis);
542	NOREF(fOtherProfile);
543	#endif
544	}
545
546
547	/**
548	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
549	*/
550	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
551	char *pszBuf, size_t cbBuf, bool fOtherProfile)
552	{
553	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
554	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
555	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
556	while (*pszCur == ' ')
557	pszCur++;
558	if (!*pszCur)
559	return false;
560
561	const char *pszEnd = strchr(pszCur, ' ');
562	AssertReturn(pszEnd, false);
563	size_t cch = pszEnd - pszCur;
564	if (cch < cbBuf)
565	{
566	memcpy(pszBuf, pszCur, cch);
567	pszBuf[cch] = '\0';
568	}
569	else if (cbBuf > 0)
570	{
571	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
572	pszBuf[cbBuf - 1] = '\0';
573	}
574
575	ppvEnumCtx = (void )pszEnd;
576	return true;
577	}
578
579
580	/**
581	* Initializes the VMSVGA3D state during VGA device construction.
582	*
583	* Failure are generally not fatal, 3D support will just be disabled.
584	*
585	* @returns VBox status code.
586	* @param pDevIns The device instance.
587	* @param pThis The shared VGA/VMSVGA state where svga.p3dState will be
588	* modified.
589	* @param pThisCC The VGA/VMSVGA state for ring-3.
590	*/
591	int vmsvga3dInit(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
592	{
593	int rc;
594	RT_NOREF(pDevIns, pThis);
595
596	AssertCompile(GL_TRUE == 1);
597	AssertCompile(GL_FALSE == 0);
598
599	#ifdef VMSVGA3D_DYNAMIC_LOAD
600	rc = glLdrInit(pDevIns);
601	if (RT_FAILURE(rc))
602	{
603	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
604	return rc;
605	}
606	#endif
607
608	/*
609	* Load and resolve imports from the external shared libraries.
610	*/
611	RTERRINFOSTATIC ErrInfo;
612	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
613	if (RT_FAILURE(rc))
614	{
615	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
616	return rc;
617	}
618	#ifdef RT_OS_DARWIN
619	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
620	if (RT_FAILURE(rc))
621	{
622	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
623	return rc;
624	}
625	#endif
626
627	/*
628	* Allocate the state.
629	*/
630	pThisCC->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
631	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
632
633	#ifdef RT_OS_WINDOWS
634	/* Create event semaphore and async IO thread. */
635	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
636	rc = RTSemEventCreate(&pState->WndRequestSem);
637	if (RT_SUCCESS(rc))
638	{
639	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
640	"VMSVGA3DWND");
641	if (RT_SUCCESS(rc))
642	return VINF_SUCCESS;
643
644	/* bail out. */
645	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
646	RTSemEventDestroy(pState->WndRequestSem);
647	}
648	else
649	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
650	RTMemFree(pThisCC->svga.p3dState);
651	pThisCC->svga.p3dState = NULL;
652	return rc;
653	#else
654	return VINF_SUCCESS;
655	#endif
656	}
657
658	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
659	{
660	/* A strict approach to get a proc address as recommended by Khronos:
661	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
662	* - "If the function is an extension, we need to check to see if the extension is supported."
663	*/
664
665	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
666	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
667	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
668	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
669	} while(0)
670
671	/* Get an optional function address. LogRel on failure. */
672	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
673	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
674	if (!pState->ext.ProcName) \
675	{ \
676	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
677	AssertFailed(); \
678	} \
679	} while(0)
680
681	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
682	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
683	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
684	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
685	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
686	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
687	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
688	GLGETPROC_(PFNGLTEXSUBIMAGE3DPROC , glTexSubImage3D, "");
689	GLGETPROC_(PFNGLGETCOMPRESSEDTEXIMAGEPROC , glGetCompressedTexImage, "");
690	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
691	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
692	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
693	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC , glCompressedTexSubImage3D, "");
694	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
695	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
696	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
697	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
698	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
699	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
700	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
701	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
702	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
703	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
704	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
705	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
706	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
707	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
708	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
709	/* glGetProgramivARB determines implementation limits for the program
710	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
711	* It differs from glGetProgramiv, which returns a parameter from a program object.
712	*/
713	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
714	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
715	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
716	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
717	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
718	#endif
719	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
720	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
721	#endif
722	GLGETPROC_(PFNGLDRAWBUFFERSPROC , glDrawBuffers, "");
723	GLGETPROC_(PFNGLCREATESHADERPROC , glCreateShader, "");
724	GLGETPROC_(PFNGLSHADERSOURCEPROC , glShaderSource, "");
725	GLGETPROC_(PFNGLCOMPILESHADERPROC , glCompileShader, "");
726	GLGETPROC_(PFNGLGETSHADERIVPROC , glGetShaderiv, "");
727	GLGETPROC_(PFNGLGETSHADERINFOLOGPROC , glGetShaderInfoLog, "");
728	GLGETPROC_(PFNGLCREATEPROGRAMPROC , glCreateProgram, "");
729	GLGETPROC_(PFNGLATTACHSHADERPROC , glAttachShader, "");
730	GLGETPROC_(PFNGLLINKPROGRAMPROC , glLinkProgram, "");
731	GLGETPROC_(PFNGLGETPROGRAMIVPROC , glGetProgramiv, "");
732	GLGETPROC_(PFNGLGETPROGRAMINFOLOGPROC , glGetProgramInfoLog, "");
733	GLGETPROC_(PFNGLUSEPROGRAMPROC , glUseProgram, "");
734	GLGETPROC_(PFNGLGETUNIFORMLOCATIONPROC , glGetUniformLocation, "");
735	GLGETPROC_(PFNGLUNIFORM1IPROC , glUniform1i, "");
736	GLGETPROC_(PFNGLUNIFORM4FVPROC , glUniform4fv, "");
737	GLGETPROC_(PFNGLDETACHSHADERPROC , glDetachShader, "");
738	GLGETPROC_(PFNGLDELETESHADERPROC , glDeleteShader, "");
739	GLGETPROC_(PFNGLDELETEPROGRAMPROC , glDeleteProgram, "");
740
741	GLGETPROC_(PFNGLVERTEXATTRIB4FVPROC , glVertexAttrib4fv, "");
742	GLGETPROC_(PFNGLVERTEXATTRIB4UBVPROC , glVertexAttrib4ubv, "");
743	GLGETPROC_(PFNGLVERTEXATTRIB4NUBVPROC , glVertexAttrib4Nubv, "");
744	GLGETPROC_(PFNGLVERTEXATTRIB4SVPROC , glVertexAttrib4sv, "");
745	GLGETPROC_(PFNGLVERTEXATTRIB4NSVPROC , glVertexAttrib4Nsv, "");
746	GLGETPROC_(PFNGLVERTEXATTRIB4NUSVPROC , glVertexAttrib4Nusv, "");
747
748	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
749	if ( pState->rsGLVersion >= 3.0f
750	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
751	{
752	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
753	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
754	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
755	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
756	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
757	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
758	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
759	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
760	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
761	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
762	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
763	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
764	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
765	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
766	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
767	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
768	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
769	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
770	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
771	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
772	}
773
774	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
775	if (pState->rsGLVersion >= 3.1f)
776	{
777	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
778	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
779	}
780	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
781	{
782	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
783	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
784	}
785	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
786	{
787	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
788	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
789	}
790
791	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
792	if ( pState->rsGLVersion >= 3.2f
793	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
794	{
795	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
796	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
797	}
798
799	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
800	if ( pState->rsGLVersion >= 3.2f
801	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
802	{
803	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
804	}
805
806	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
807	if (pState->rsGLVersion >= 3.3f)
808	{
809	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
810	}
811	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
812	{
813	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
814	}
815
816	#undef GLGETPROCOPT_
817	#undef GLGETPROC_
818
819	return VINF_SUCCESS;
820	}
821
822
823	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
824	int vmsvga3dPowerOn(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
825	{
826	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
827	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
828	PVMSVGA3DCONTEXT pContext;
829	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
830	PVMSVGA3DCONTEXT pOtherCtx;
831	#endif
832	int rc;
833	RT_NOREF(pDevIns, pThis);
834
835	if (pState->rsGLVersion != 0.0)
836	return VINF_SUCCESS; /* already initialized (load state) */
837
838	/*
839	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
840	*/
841	rc = vmsvga3dContextDefineOgl(pThisCC, 1, VMSVGA3D_DEF_CTX_F_INIT);
842	AssertRCReturn(rc, rc);
843
844	pContext = pState->papContexts[1];
845	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
846
847	#ifdef VMSVGA3D_DYNAMIC_LOAD
848	/* Context is set and it is possible now to resolve extension functions. */
849	rc = glLdrGetExtFunctions(pDevIns);
850	if (RT_FAILURE(rc))
851	{
852	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
853	return rc;
854	}
855	#endif
856
857	LogRel(("VMSVGA3d: OpenGL version: %s\n"
858	"VMSVGA3d: OpenGL Vendor: %s\n"
859	"VMSVGA3d: OpenGL Renderer: %s\n"
860	"VMSVGA3d: OpenGL shader language version: %s\n",
861	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
862	glGetString(GL_SHADING_LANGUAGE_VERSION)));
863
864	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
865	AssertRCReturn(rc, rc);
866	vmsvga3dLogRelExtensions("", pState->pszExtensions);
867
868	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
869
870
871	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
872	/*
873	* Get the extension list for the alternative profile so we can better
874	* figure out the shader model and stuff.
875	*/
876	rc = vmsvga3dContextDefineOgl(pThisCC, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
877	AssertLogRelRCReturn(rc, rc);
878	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
879
880	pOtherCtx = pState->papContexts[2];
881	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
882
883	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
884	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
885	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
886	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
887	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
888	glGetString(GL_SHADING_LANGUAGE_VERSION)));
889
890	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
891	AssertRCReturn(rc, rc);
892	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
893
894	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
895
896	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
897	#else
898	pState->pszOtherExtensions = (char *)"";
899	pState->rsOtherGLVersion = pState->rsGLVersion;
900	#endif
901
902	/*
903	* Resolve GL function pointers and store them in pState->ext.
904	*/
905	rc = vmsvga3dLoadGLFunctions(pState);
906	if (RT_FAILURE(rc))
907	{
908	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
909	return rc;
910	}
911
912	/*
913	* Initialize the capabilities with sensible defaults.
914	*/
915	pState->caps.maxActiveLights = 1;
916	pState->caps.maxTextures = 1;
917	pState->caps.maxClipDistances = 4;
918	pState->caps.maxColorAttachments = 1;
919	pState->caps.maxRectangleTextureSize = 2048;
920	pState->caps.maxTextureAnisotropy = 1;
921	pState->caps.maxVertexShaderInstructions = 1024;
922	pState->caps.maxFragmentShaderInstructions = 1024;
923	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
924	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
925	pState->caps.flPointSize[0] = 1;
926	pState->caps.flPointSize[1] = 1;
927
928	/*
929	* Query capabilities
930	*/
931	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
932	pState->caps.fTextureFilterAnisotropicSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_filter_anisotropic ");
933
934	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
935	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
936	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
937	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
938	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
939	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
940	#else
941	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
942	#endif
943	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
944	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
945	if (pState->caps.fTextureFilterAnisotropicSupported)
946	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
947	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
948
949	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
950	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
951	&pState->caps.maxFragmentShaderTemps));
952	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
953	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
954	&pState->caps.maxFragmentShaderInstructions));
955	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
956	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
957	&pState->caps.maxVertexShaderTemps));
958	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
959	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
960	&pState->caps.maxVertexShaderInstructions));
961
962	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
963	* ARB Assembly Language
964	* These are done through testing the presence of extensions. You should test them in this order:
965	* GL_NV_gpu_program4: SM 4.0 or better.
966	* GL_NV_vertex_program3: SM 3.0 or better.
967	* GL_ARB_fragment_program: SM 2.0 or better.
968	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
969	*
970	*/
971	/** @todo distinguish between vertex and pixel shaders??? */
972	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
973	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
974	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
975	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
976	#else
977	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
978	#endif
979	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
980	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
981	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
982	{
983	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
984	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
985	}
986	else
987	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
988	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
989	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
990	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
991	)
992	{
993	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
994	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
995	}
996	else
997	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
998	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
999	{
1000	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1001	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1002	}
1003	else
1004	{
1005	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1006	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1007	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1008	}
1009
1010	/* Now check the shading language version, in case it indicates a higher supported version. */
1011	if (v >= 3.30f)
1012	{
1013	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
1014	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
1015	}
1016	else
1017	if (v >= 1.20f)
1018	{
1019	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1020	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1021	}
1022
1023	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1024	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1025	{
1026	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1027	}
1028
1029	/*
1030	* Tweak capabilities.
1031	*/
1032	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1033	if ( pState->caps.maxVertexShaderTemps < 32
1034	&& vmsvga3dIsVendorIntel())
1035	pState->caps.maxVertexShaderTemps = 32;
1036
1037	#if 0
1038	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1039	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1040	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1041	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1042	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1043	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1044	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1045	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1046	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1047	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1048	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1049	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1050	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1051	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1052	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1053	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1054	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1055	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1056	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1057	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1058	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1059	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1060	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1061	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1062	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1063	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1064	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1065	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1066	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1067	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1068	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1069	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1070	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1071	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1072	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1073	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1074	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1075	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1076	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1077	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1078	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1079	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1080	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1081	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1082	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1083	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1084	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1085	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1086	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1087	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1088	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1089	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1090	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1091	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1092	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1093	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1094	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1095	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1096	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1097	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1098	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1099	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1100	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1101	#endif
1102
1103	LogRel(("VMSVGA3d: Capabilities:\n"));
1104	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1105	pState->caps.maxActiveLights, pState->caps.maxTextures));
1106	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1107	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1108	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1109	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1110	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1111	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1112	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1113	pState->caps.maxFragmentShaderTemps,
1114	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1115	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1116	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d\n",
1117	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion));
1118	LogRel(("VMSVGA3d: fS3TCSupported=%-2d fTextureFilterAnisotropicSupported=%d\n",
1119	pState->caps.fS3TCSupported, pState->caps.fTextureFilterAnisotropicSupported));
1120
1121
1122	/* Initialize the shader library. */
1123	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1124	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1125	rc = ShaderInitLib(&pState->ShaderIf);
1126	AssertRC(rc);
1127
1128	/* Cleanup */
1129	rc = vmsvga3dContextDestroy(pThisCC, 1);
1130	AssertRC(rc);
1131	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1132	rc = vmsvga3dContextDestroy(pThisCC, 2);
1133	AssertRC(rc);
1134	#endif
1135
1136	if ( pState->rsGLVersion < 3.0
1137	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1138	{
1139	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1140	return VERR_NOT_IMPLEMENTED;
1141	}
1142
1143	return VINF_SUCCESS;
1144	}
1145
1146	int vmsvga3dReset(PVGASTATECC pThisCC)
1147	{
1148	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1149	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
1150
1151	/* Destroy all leftover surfaces. */
1152	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1153	{
1154	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1155	vmsvga3dSurfaceDestroy(pThisCC, pState->papSurfaces[i]->id);
1156	}
1157
1158	/* Destroy all leftover contexts. */
1159	for (uint32_t i = 0; i < pState->cContexts; i++)
1160	{
1161	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1162	vmsvga3dContextDestroy(pThisCC, pState->papContexts[i]->id);
1163	}
1164
1165	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1166	vmsvga3dContextDestroyOgl(pThisCC, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1167
1168	return VINF_SUCCESS;
1169	}
1170
1171	int vmsvga3dTerminate(PVGASTATECC pThisCC)
1172	{
1173	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1174	AssertReturn(pState, VERR_WRONG_ORDER);
1175	int rc;
1176
1177	rc = vmsvga3dReset(pThisCC);
1178	AssertRCReturn(rc, rc);
1179
1180	/* Terminate the shader library. */
1181	rc = ShaderDestroyLib();
1182	AssertRC(rc);
1183
1184	#ifdef RT_OS_WINDOWS
1185	/* Terminate the window creation thread. */
1186	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1187	AssertRCReturn(rc, rc);
1188
1189	RTSemEventDestroy(pState->WndRequestSem);
1190	#elif defined(RT_OS_DARWIN)
1191
1192	#elif defined(RT_OS_LINUX)
1193	/* signal to the thread that it is supposed to exit */
1194	pState->bTerminate = true;
1195	/* wait for it to terminate */
1196	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1197	AssertRC(rc);
1198	XCloseDisplay(pState->display);
1199	#endif
1200
1201	RTStrFree(pState->pszExtensions);
1202	pState->pszExtensions = NULL;
1203	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1204	RTStrFree(pState->pszOtherExtensions);
1205	#endif
1206	pState->pszOtherExtensions = NULL;
1207
1208	return VINF_SUCCESS;
1209	}
1210
1211
1212	void vmsvga3dUpdateHostScreenViewport(PVGASTATECC pThisCC, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1213	{
1214	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1215	* redraw it. */
1216
1217	#ifdef RT_OS_DARWIN
1218	RT_NOREF(pOldViewport);
1219	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1220	if ( pState
1221	&& idScreen == 0
1222	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1223	{
1224	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1225	}
1226	#else
1227	RT_NOREF(pThisCC, idScreen, pOldViewport);
1228	#endif
1229	}
1230
1231
1232	/**
1233	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1234	* given surface format capability.
1235	*
1236	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1237	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1238	*
1239	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1240	* of implicit guest expectations:
1241	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1242	*/
1243	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1244	{
1245	uint32_t result = 0;
1246
1247	/** @todo missing:
1248	*
1249	* SVGA3DFORMAT_OP_PIXELSIZE
1250	*/
1251
1252	switch (idx3dCaps)
1253	{
1254	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1255	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1256	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1257	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1258	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1259	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1260	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1261	break;
1262
1263	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1264	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1265	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1266	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1267	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1268	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1269	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1270	break;
1271	}
1272
1273	/** @todo check hardware caps! */
1274	switch (idx3dCaps)
1275	{
1276	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1277	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1278	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1279	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1280	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1281	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1282	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1283	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1284	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1285	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1286	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1287	result \|= SVGA3DFORMAT_OP_TEXTURE
1288	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1289	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1290	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1291	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1292	\| SVGA3DFORMAT_OP_CUBETEXTURE
1293	\| SVGA3DFORMAT_OP_SRGBREAD
1294	\| SVGA3DFORMAT_OP_SRGBWRITE;
1295	break;
1296
1297	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1298	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1299	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1300	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1301	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1302	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1303	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1304	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1305	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1306	break;
1307
1308	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1309	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1310	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1311	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1312	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1313	result \|= SVGA3DFORMAT_OP_TEXTURE
1314	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1315	\| SVGA3DFORMAT_OP_CUBETEXTURE
1316	\| SVGA3DFORMAT_OP_SRGBREAD;
1317	break;
1318
1319	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1320	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1321	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1322	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1323	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1324	break;
1325
1326	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1327	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1328	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1329	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1330	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1331	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1332	result \|= SVGA3DFORMAT_OP_TEXTURE
1333	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1334	\| SVGA3DFORMAT_OP_CUBETEXTURE
1335	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1336	break;
1337
1338	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1339	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1340	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1341	result \|= SVGA3DFORMAT_OP_TEXTURE
1342	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1343	\| SVGA3DFORMAT_OP_CUBETEXTURE
1344	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1345	break;
1346
1347	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1348	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1349	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1350	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1351	\| SVGA3DFORMAT_OP_TEXTURE;
1352	break;
1353
1354	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1355	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1356	break;
1357	}
1358	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1359
1360	return result;
1361	}
1362
1363	#if 0 /* unused */
1364	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1365	{
1366	RT_NOREF(pState3D, idx3dCaps);
1367
1368	/** @todo test this somehow */
1369	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1370
1371	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1372	return result;
1373	}
1374	#endif
1375
1376
1377	int vmsvga3dQueryCaps(PVGASTATECC pThisCC, uint32_t idx3dCaps, uint32_t *pu32Val)
1378	{
1379	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1380	AssertReturn(pState, VERR_NO_MEMORY);
1381	int rc = VINF_SUCCESS;
1382
1383	*pu32Val = 0;
1384
1385	/*
1386	* The capabilities access by current (2015-03-01) linux sources (gallium,
1387	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1388	* aren't access.
1389	*/
1390
1391	switch (idx3dCaps)
1392	{
1393	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1394	case SVGA3D_DEVCAP_3D:
1395	pu32Val = 1; / boolean? */
1396	break;
1397
1398	case SVGA3D_DEVCAP_MAX_LIGHTS:
1399	*pu32Val = pState->caps.maxActiveLights;
1400	break;
1401
1402	case SVGA3D_DEVCAP_MAX_TEXTURES:
1403	*pu32Val = pState->caps.maxTextures;
1404	break;
1405
1406	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1407	*pu32Val = pState->caps.maxClipDistances;
1408	break;
1409
1410	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1411	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1412	*pu32Val = pState->caps.vertexShaderVersion;
1413	break;
1414
1415	case SVGA3D_DEVCAP_VERTEX_SHADER:
1416	/* boolean? */
1417	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1418	break;
1419
1420	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1421	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1422	*pu32Val = pState->caps.fragmentShaderVersion;
1423	break;
1424
1425	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1426	/* boolean? */
1427	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1428	break;
1429
1430	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1431	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1432	/* Must be obsolete by now; surface format caps specify the same thing. */
1433	rc = VERR_INVALID_PARAMETER;
1434	break;
1435
1436	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1437	break;
1438
1439	/*
1440	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1441	* return TRUE. Even on physical hardware that does not support
1442	* these formats natively, the SVGA3D device will provide an emulation
1443	* which should be invisible to the guest OS.
1444	*/
1445	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1446	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1447	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1448	*pu32Val = 1;
1449	break;
1450
1451	case SVGA3D_DEVCAP_QUERY_TYPES:
1452	break;
1453
1454	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1455	break;
1456
1457	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1458	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1459	AssertCompile(sizeof(uint32_t) == sizeof(float));
1460	(float )pu32Val = pState->caps.flPointSize[1];
1461	break;
1462
1463	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1464	/** @todo ?? */
1465	rc = VERR_INVALID_PARAMETER;
1466	break;
1467
1468	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1469	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1470	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1471	*pu32Val = pState->caps.maxRectangleTextureSize;
1472	break;
1473
1474	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1475	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1476	//*pu32Val = pCaps->MaxVolumeExtent;
1477	*pu32Val = 256;
1478	break;
1479
1480	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1481	pu32Val = 32768; / hardcoded in Wine */
1482	break;
1483
1484	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1485	//*pu32Val = pCaps->MaxTextureAspectRatio;
1486	break;
1487
1488	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1489	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1490	*pu32Val = pState->caps.maxTextureAnisotropy;
1491	break;
1492
1493	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1494	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1495	pu32Val = 0xFFFFF; / hardcoded in Wine */
1496	break;
1497
1498	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1499	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1500	*pu32Val = pState->caps.maxVertexShaderInstructions;
1501	break;
1502
1503	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1504	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1505	break;
1506
1507	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1508	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1509	*pu32Val = pState->caps.maxVertexShaderTemps;
1510	break;
1511
1512	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1513	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1514	*pu32Val = pState->caps.maxFragmentShaderTemps;
1515	break;
1516
1517	case SVGA3D_DEVCAP_TEXTURE_OPS:
1518	break;
1519
1520	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1521	break;
1522
1523	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1524	break;
1525
1526	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1527	break;
1528
1529	case SVGA3D_DEVCAP_SUPERSAMPLE:
1530	break;
1531
1532	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1533	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1534	break;
1535
1536	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1537	break;
1538
1539	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1540	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1541	*pu32Val = pState->caps.maxColorAttachments;
1542	break;
1543
1544	/*
1545	* This is the maximum number of SVGA context IDs that the guest
1546	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1547	*/
1548	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1549	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1550	break;
1551
1552	/*
1553	* This is the maximum number of SVGA surface IDs that the guest
1554	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1555	*/
1556	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1557	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1558	break;
1559
1560	#if 0 /* Appeared more recently, not yet implemented. */
1561	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1562	case SVGA3D_DEVCAP_LINE_AA:
1563	break;
1564	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1565	case SVGA3D_DEVCAP_LINE_STIPPLE:
1566	break;
1567	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1568	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1569	break;
1570	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1571	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1572	break;
1573	#endif
1574
1575	/*
1576	* Supported surface formats.
1577	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1578	*/
1579	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1580	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1581	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1582	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1583	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1584	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1585	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1586	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1587	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1588	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1589	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1590	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1591	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1592	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1593	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1594	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1595	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1596	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1597	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1598	break;
1599
1600	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1601	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1602	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1603	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1604	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1605	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1606	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1607	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1608	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1609	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1610	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1611	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1612	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1613	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1614	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1615	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1616	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1617	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1618	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1619	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1620	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1621	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1622	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1623	break;
1624
1625	/* Linux: Not referenced in current sources. */
1626	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1627	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1628	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1629	rc = VERR_INVALID_PARAMETER;
1630	*pu32Val = 0;
1631	break;
1632
1633	default:
1634	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1635	rc = VERR_INVALID_PARAMETER;
1636	break;
1637	}
1638
1639	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1640	return rc;
1641	}
1642
1643	/**
1644	* Convert SVGA format value to its OpenGL equivalent
1645	*
1646	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1647	* help from wined3dformat_from_d3dformat().
1648	*/
1649	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1650	{
1651	#if 0
1652	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1653	#else
1654	#define AssertTestFmt(f) do {} while(0)
1655	#endif
1656	/* Init cbBlockGL for non-emulated formats. */
1657	pSurface->cbBlockGL = pSurface->cbBlock;
1658
1659	switch (format)
1660	{
1661	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1662	pSurface->internalFormatGL = GL_RGB8;
1663	pSurface->formatGL = GL_BGRA;
1664	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1665	break;
1666	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1667	pSurface->internalFormatGL = GL_RGBA8;
1668	pSurface->formatGL = GL_BGRA;
1669	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1670	break;
1671	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1672	pSurface->internalFormatGL = GL_RGB5;
1673	pSurface->formatGL = GL_RGB;
1674	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1675	AssertTestFmt(SVGA3D_R5G6B5);
1676	break;
1677	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1678	pSurface->internalFormatGL = GL_RGB5;
1679	pSurface->formatGL = GL_BGRA;
1680	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1681	AssertTestFmt(SVGA3D_X1R5G5B5);
1682	break;
1683	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1684	pSurface->internalFormatGL = GL_RGB5_A1;
1685	pSurface->formatGL = GL_BGRA;
1686	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1687	AssertTestFmt(SVGA3D_A1R5G5B5);
1688	break;
1689	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1690	pSurface->internalFormatGL = GL_RGBA4;
1691	pSurface->formatGL = GL_BGRA;
1692	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1693	AssertTestFmt(SVGA3D_A4R4G4B4);
1694	break;
1695
1696	case SVGA3D_R8G8B8A8_UNORM:
1697	pSurface->internalFormatGL = GL_RGBA8;
1698	pSurface->formatGL = GL_RGBA;
1699	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1700	break;
1701
1702	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1703	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1704	pSurface->formatGL = GL_DEPTH_COMPONENT;
1705	pSurface->typeGL = GL_UNSIGNED_INT;
1706	break;
1707	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1708	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1709	pSurface->formatGL = GL_DEPTH_COMPONENT;
1710	pSurface->typeGL = GL_UNSIGNED_SHORT;
1711	AssertTestFmt(SVGA3D_Z_D16);
1712	break;
1713	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1714	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1715	pSurface->formatGL = GL_DEPTH_STENCIL;
1716	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1717	break;
1718	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1719	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1720	pSurface->formatGL = GL_DEPTH_STENCIL;
1721	pSurface->typeGL = GL_UNSIGNED_SHORT;
1722	/** @todo Wine sources hints at no hw support for this, so test this one! */
1723	AssertTestFmt(SVGA3D_Z_D15S1);
1724	break;
1725	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1726	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1727	pSurface->formatGL = GL_DEPTH_COMPONENT;
1728	pSurface->typeGL = GL_UNSIGNED_INT;
1729	AssertTestFmt(SVGA3D_Z_D24X8);
1730	break;
1731
1732	/* Advanced D3D9 depth formats. */
1733	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1734	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1735	pSurface->formatGL = GL_DEPTH_COMPONENT;
1736	pSurface->typeGL = GL_HALF_FLOAT;
1737	break;
1738
1739	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1740	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1741	pSurface->formatGL = GL_DEPTH_COMPONENT;
1742	pSurface->typeGL = GL_FLOAT; /* ??? */
1743	break;
1744
1745	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1746	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1747	pSurface->formatGL = GL_DEPTH_STENCIL;
1748	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1749	break;
1750
1751	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1752	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1753	pSurface->formatGL = GL_RGBA; /* not used */
1754	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1755	break;
1756
1757	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1758	/* "DXT2 and DXT3 are the same from an API perspective." */
1759	RT_FALL_THRU();
1760	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1761	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1762	pSurface->formatGL = GL_RGBA; /* not used */
1763	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1764	break;
1765
1766	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1767	/* "DXT4 and DXT5 are the same from an API perspective." */
1768	RT_FALL_THRU();
1769	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1770	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1771	pSurface->formatGL = GL_RGBA; /* not used */
1772	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1773	break;
1774
1775	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1776	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1777	pSurface->formatGL = GL_LUMINANCE;
1778	pSurface->typeGL = GL_UNSIGNED_BYTE;
1779	break;
1780
1781	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1782	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1783	pSurface->formatGL = GL_LUMINANCE;
1784	pSurface->typeGL = GL_UNSIGNED_SHORT;
1785	break;
1786
1787	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1788	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1789	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1790	pSurface->typeGL = GL_UNSIGNED_BYTE;
1791	break;
1792
1793	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1794	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1795	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1796	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1797	break;
1798
1799	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1800	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1801	pSurface->formatGL = GL_ALPHA;
1802	pSurface->typeGL = GL_UNSIGNED_BYTE;
1803	break;
1804
1805	#if 0
1806
1807	/* Bump-map formats */
1808	case SVGA3D_BUMPU8V8:
1809	return D3DFMT_V8U8;
1810	case SVGA3D_BUMPL6V5U5:
1811	return D3DFMT_L6V5U5;
1812	case SVGA3D_BUMPX8L8V8U8:
1813	return D3DFMT_X8L8V8U8;
1814	case SVGA3D_BUMPL8V8U8:
1815	/* No corresponding D3D9 equivalent. */
1816	AssertFailedReturn(D3DFMT_UNKNOWN);
1817	/* signed bump-map formats */
1818	case SVGA3D_V8U8:
1819	return D3DFMT_V8U8;
1820	case SVGA3D_Q8W8V8U8:
1821	return D3DFMT_Q8W8V8U8;
1822	case SVGA3D_CxV8U8:
1823	return D3DFMT_CxV8U8;
1824	/* mixed bump-map formats */
1825	case SVGA3D_X8L8V8U8:
1826	return D3DFMT_X8L8V8U8;
1827	case SVGA3D_A2W10V10U10:
1828	return D3DFMT_A2W10V10U10;
1829	#endif
1830
1831	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1832	pSurface->internalFormatGL = GL_RGBA16F;
1833	pSurface->formatGL = GL_RGBA;
1834	#if 0 /* bird: wine uses half float, sounds correct to me... */
1835	pSurface->typeGL = GL_FLOAT;
1836	#else
1837	pSurface->typeGL = GL_HALF_FLOAT;
1838	AssertTestFmt(SVGA3D_ARGB_S10E5);
1839	#endif
1840	break;
1841
1842	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1843	pSurface->internalFormatGL = GL_RGBA32F;
1844	pSurface->formatGL = GL_RGBA;
1845	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1846	break;
1847
1848	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1849	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1850	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1851	pSurface->formatGL = GL_RGBA;
1852	#else
1853	pSurface->formatGL = GL_BGRA;
1854	#endif
1855	pSurface->typeGL = GL_UNSIGNED_INT;
1856	AssertTestFmt(SVGA3D_A2R10G10B10);
1857	break;
1858
1859
1860	/* Single- and dual-component floating point formats */
1861	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1862	pSurface->internalFormatGL = GL_R16F;
1863	pSurface->formatGL = GL_RED;
1864	#if 0 /* bird: wine uses half float, sounds correct to me... */
1865	pSurface->typeGL = GL_FLOAT;
1866	#else
1867	pSurface->typeGL = GL_HALF_FLOAT;
1868	AssertTestFmt(SVGA3D_R_S10E5);
1869	#endif
1870	break;
1871	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1872	pSurface->internalFormatGL = GL_R32F;
1873	pSurface->formatGL = GL_RED;
1874	pSurface->typeGL = GL_FLOAT;
1875	break;
1876	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1877	pSurface->internalFormatGL = GL_RG16F;
1878	pSurface->formatGL = GL_RG;
1879	#if 0 /* bird: wine uses half float, sounds correct to me... */
1880	pSurface->typeGL = GL_FLOAT;
1881	#else
1882	pSurface->typeGL = GL_HALF_FLOAT;
1883	AssertTestFmt(SVGA3D_RG_S10E5);
1884	#endif
1885	break;
1886	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1887	pSurface->internalFormatGL = GL_RG32F;
1888	pSurface->formatGL = GL_RG;
1889	pSurface->typeGL = GL_FLOAT;
1890	break;
1891
1892	/*
1893	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1894	* the most efficient format to use when creating new surfaces
1895	* expressly for index or vertex data.
1896	*/
1897	case SVGA3D_BUFFER:
1898	pSurface->internalFormatGL = -1;
1899	pSurface->formatGL = -1;
1900	pSurface->typeGL = -1;
1901	break;
1902
1903	#if 0
1904	return D3DFMT_UNKNOWN;
1905
1906	case SVGA3D_V16U16:
1907	return D3DFMT_V16U16;
1908	#endif
1909
1910	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1911	pSurface->internalFormatGL = GL_RG16;
1912	pSurface->formatGL = GL_RG;
1913	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1914	pSurface->typeGL = GL_UNSIGNED_INT;
1915	#else
1916	pSurface->typeGL = GL_UNSIGNED_SHORT;
1917	AssertTestFmt(SVGA3D_G16R16);
1918	#endif
1919	break;
1920
1921	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1922	pSurface->internalFormatGL = GL_RGBA16;
1923	pSurface->formatGL = GL_RGBA;
1924	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1925	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1926	#else
1927	pSurface->typeGL = GL_UNSIGNED_SHORT;
1928	AssertTestFmt(SVGA3D_A16B16G16R16);
1929	#endif
1930	break;
1931
1932	case SVGA3D_R8G8B8A8_SNORM:
1933	pSurface->internalFormatGL = GL_RGB8;
1934	pSurface->formatGL = GL_BGRA;
1935	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1936	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1937	break;
1938	case SVGA3D_R16G16_UNORM:
1939	pSurface->internalFormatGL = GL_RG16;
1940	pSurface->formatGL = GL_RG;
1941	pSurface->typeGL = GL_UNSIGNED_SHORT;
1942	AssertTestFmt(SVGA3D_R16G16_UNORM);
1943	break;
1944
1945	/* Packed Video formats */
1946	case SVGA3D_UYVY:
1947	case SVGA3D_YUY2:
1948	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1949	pSurface->fEmulated = true;
1950	pSurface->internalFormatGL = GL_RGBA8;
1951	pSurface->formatGL = GL_BGRA;
1952	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1953	pSurface->cbBlockGL = 4 * pSurface->cxBlock * pSurface->cyBlock;
1954	break;
1955
1956	#if 0
1957	/* Planar video formats */
1958	case SVGA3D_NV12:
1959	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1960
1961	/* Video format with alpha */
1962	case SVGA3D_AYUV:
1963	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1964
1965	case SVGA3D_BC4_UNORM:
1966	case SVGA3D_BC5_UNORM:
1967	/* Unknown; only in DX10 & 11 */
1968	break;
1969	#endif
1970	default:
1971	AssertMsgFailed(("Unsupported format %d\n", format));
1972	break;
1973	}
1974	#undef AssertTestFmt
1975	}
1976
1977
1978	#if 0
1979	/**
1980	* Convert SVGA multi sample count value to its D3D equivalent
1981	*/
1982	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1983	{
1984	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1985	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1986
1987	if (multisampleCount > 16)
1988	return D3DMULTISAMPLE_NONE;
1989
1990	/** @todo exact same mapping as d3d? */
1991	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1992	}
1993	#endif
1994
1995	/**
1996	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1997	*
1998	* @param pState The VMSVGA3d state.
1999	* @param pSurface The surface being destroyed.
2000	*/
2001	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
2002	{
2003	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2004	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2005
2006	switch (pSurface->enmOGLResType)
2007	{
2008	case VMSVGA3D_OGLRESTYPE_BUFFER:
2009	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
2010	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2011	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2012	break;
2013
2014	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2015	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
2016	glDeleteTextures(1, &pSurface->oglId.texture);
2017	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2018	if (pSurface->fEmulated)
2019	{
2020	if (pSurface->idEmulated)
2021	{
2022	glDeleteTextures(1, &pSurface->idEmulated);
2023	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2024	}
2025	}
2026	else
2027	{
2028	Assert(!pSurface->idEmulated);
2029	}
2030	break;
2031
2032	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2033	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2034	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2035	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2036	break;
2037
2038	default:
2039	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2040	("hint=%#x, type=%d\n",
2041	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2042	break;
2043	}
2044	}
2045
2046
2047	int vmsvga3dSurfaceCopy(PVGASTATECC pThisCC, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src,
2048	uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2049	{
2050	int rc;
2051
2052	LogFunc(("Copy %d boxes from sid=%u face=%u mipmap=%u to sid=%u face=%u mipmap=%u\n",
2053	cCopyBoxes, src.sid, src.face, src.mipmap, dest.sid, dest.face, dest.mipmap));
2054
2055	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
2056	AssertReturn(pState, VERR_INVALID_STATE);
2057
2058	PVMSVGA3DSURFACE pSurfaceSrc;
2059	rc = vmsvga3dSurfaceFromSid(pState, src.sid, &pSurfaceSrc);
2060	AssertRCReturn(rc, rc);
2061
2062	PVMSVGA3DSURFACE pSurfaceDst;
2063	rc = vmsvga3dSurfaceFromSid(pState, dest.sid, &pSurfaceDst);
2064	AssertRCReturn(rc, rc);
2065
2066	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceSrc))
2067	{
2068	/* The source surface is still in memory. */
2069	PVMSVGA3DMIPMAPLEVEL pMipmapLevelSrc;
2070	rc = vmsvga3dMipmapLevel(pSurfaceSrc, src.face, src.mipmap, &pMipmapLevelSrc);
2071	AssertRCReturn(rc, rc);
2072
2073	PVMSVGA3DMIPMAPLEVEL pMipmapLevelDst;
2074	rc = vmsvga3dMipmapLevel(pSurfaceDst, dest.face, dest.mipmap, &pMipmapLevelDst);
2075	AssertRCReturn(rc, rc);
2076
2077	/* The copy operation is performed on the shared context. */
2078	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2079	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2080
2081	/* Use glTexSubImage to upload the data to the destination texture.
2082	* The latter must be an OpenGL texture.
2083	*/
2084	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceDst))
2085	{
2086	LogFunc(("dest sid=%u type=0x%x format=%d -> create texture\n", dest.sid, pSurfaceDst->surfaceFlags, pSurfaceDst->format));
2087	rc = vmsvga3dBackCreateTexture(pState, pContext, pContext->id, pSurfaceDst);
2088	AssertRCReturn(rc, rc);
2089	}
2090
2091	GLenum target;
2092	if (pSurfaceDst->targetGL == GL_TEXTURE_CUBE_MAP)
2093	target = vmsvga3dCubemapFaceFromIndex(dest.face);
2094	else
2095	{
2096	AssertMsg(pSurfaceDst->targetGL == GL_TEXTURE_2D, ("Test %#x\n", pSurfaceDst->targetGL));
2097	target = pSurfaceDst->targetGL;
2098	}
2099
2100	/* Save the unpacking parameters and set what we need here. */
2101	VMSVGAPACKPARAMS SavedParams;
2102	vmsvga3dOglSetUnpackParams(pState, pContext,
2103	pMipmapLevelSrc->mipmapSize.width,
2104	target == GL_TEXTURE_3D ? pMipmapLevelSrc->mipmapSize.height : 0,
2105	&SavedParams);
2106
2107	glBindTexture(pSurfaceDst->targetGL, pSurfaceDst->oglId.texture);
2108	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2109
2110	for (uint32_t i = 0; i < cCopyBoxes; ++i)
2111	{
2112	SVGA3dCopyBox clipBox = pBox[i];
2113	vmsvgaR3ClipCopyBox(&pMipmapLevelSrc->mipmapSize, &pMipmapLevelDst->mipmapSize, &clipBox);
2114	if ( !clipBox.w
2115	\|\| !clipBox.h
2116	\|\| !clipBox.d)
2117	{
2118	LogFunc(("Skipped empty box.\n"));
2119	continue;
2120	}
2121
2122	LogFunc(("copy box %d,%d,%d %dx%d to %d,%d,%d\n",
2123	clipBox.srcx, clipBox.srcy, clipBox.srcz, clipBox.w, clipBox.h, clipBox.x, clipBox.y, clipBox.z));
2124
2125	uint32_t const u32BlockX = clipBox.srcx / pSurfaceSrc->cxBlock;
2126	uint32_t const u32BlockY = clipBox.srcy / pSurfaceSrc->cyBlock;
2127	uint32_t const u32BlockZ = clipBox.srcz;
2128	Assert(u32BlockX * pSurfaceSrc->cxBlock == clipBox.srcx);
2129	Assert(u32BlockY * pSurfaceSrc->cyBlock == clipBox.srcy);
2130
2131	uint8_t const pSrcBits = (uint8_t )pMipmapLevelSrc->pSurfaceData
2132	+ pMipmapLevelSrc->cbSurfacePlane * u32BlockZ
2133	+ pMipmapLevelSrc->cbSurfacePitch * u32BlockY
2134	+ pSurfaceSrc->cbBlock * u32BlockX;
2135
2136	if (target == GL_TEXTURE_3D)
2137	{
2138	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2139	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2140	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2141	{
2142	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2143	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2144	uint32_t const imageSize = cBlocksX * cBlocksY * clipBox.d * pSurfaceSrc->cbBlock;
2145	pState->ext.glCompressedTexSubImage3D(target, dest.mipmap,
2146	clipBox.x, clipBox.y, clipBox.z,
2147	clipBox.w, clipBox.h, clipBox.d,
2148	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2149	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2150	}
2151	else
2152	{
2153	pState->ext.glTexSubImage3D(target, dest.mipmap,
2154	clipBox.x, clipBox.y, clipBox.z,
2155	clipBox.w, clipBox.h, clipBox.d,
2156	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2157	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2158	}
2159	}
2160	else
2161	{
2162	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2163	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2164	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2165	{
2166	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2167	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2168	uint32_t const imageSize = cBlocksX * cBlocksY * pSurfaceSrc->cbBlock;
2169	pState->ext.glCompressedTexSubImage2D(target, dest.mipmap,
2170	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2171	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2172	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2173	}
2174	else
2175	{
2176	glTexSubImage2D(target, dest.mipmap,
2177	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2178	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2179	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2180	}
2181	}
2182	}
2183
2184	glBindTexture(pSurfaceDst->targetGL, 0);
2185	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2186
2187	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2188
2189	return VINF_SUCCESS;
2190	}
2191
2192	PVGASTATE pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVGASTATE);
2193	for (uint32_t i = 0; i < cCopyBoxes; i++)
2194	{
2195	SVGA3dBox destBox, srcBox;
2196
2197	srcBox.x = pBox[i].srcx;
2198	srcBox.y = pBox[i].srcy;
2199	srcBox.z = pBox[i].srcz;
2200	srcBox.w = pBox[i].w;
2201	srcBox.h = pBox[i].h;
2202	srcBox.d = pBox[i].d;
2203
2204	destBox.x = pBox[i].x;
2205	destBox.y = pBox[i].y;
2206	destBox.z = pBox[i].z;
2207	destBox.w = pBox[i].w;
2208	destBox.h = pBox[i].h;
2209	destBox.d = pBox[i].d;
2210
2211	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2212	rc = vmsvga3dSurfaceStretchBlt(pThis, pThisCC, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2213	AssertRCReturn(rc, rc);
2214	}
2215	return VINF_SUCCESS;
2216	}
2217
2218
2219	/**
2220	* Saves texture unpacking parameters and loads the specified ones.
2221	*
2222	* @param pState The VMSVGA3D state structure.
2223	* @param pContext The active context.
2224	* @param cxRow The number of pixels in a row. 0 for the entire width.
2225	* @param cyImage The height of the image in pixels. 0 for the entire height.
2226	* @param pSave Where to save stuff.
2227	*/
2228	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, GLint cxRow, GLint cyImage,
2229	PVMSVGAPACKPARAMS pSave)
2230	{
2231	RT_NOREF(pState);
2232
2233	/*
2234	* Save (ignore errors, setting the defaults we want and avoids restore).
2235	*/
2236	pSave->iAlignment = 1;
2237	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2238	pSave->cxRow = 0;
2239	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2240	pSave->cyImage = 0;
2241	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage), pState, pContext);
2242
2243	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2244	pSave->fSwapBytes = GL_FALSE;
2245	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2246	Assert(pSave->fSwapBytes == GL_FALSE);
2247
2248	pSave->fLsbFirst = GL_FALSE;
2249	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2250	Assert(pSave->fLsbFirst == GL_FALSE);
2251
2252	pSave->cSkipRows = 0;
2253	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2254	Assert(pSave->cSkipRows == 0);
2255
2256	pSave->cSkipPixels = 0;
2257	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2258	Assert(pSave->cSkipPixels == 0);
2259
2260	pSave->cSkipImages = 0;
2261	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2262	Assert(pSave->cSkipImages == 0);
2263
2264	VMSVGA3D_CLEAR_GL_ERRORS();
2265	#endif
2266
2267	/*
2268	* Setup unpack.
2269	*
2270	* Note! We use 1 as alignment here because we currently don't do any
2271	* aligning of line pitches anywhere.
2272	*/
2273	pSave->fChanged = 0;
2274	if (pSave->iAlignment != 1)
2275	{
2276	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2277	pSave->fChanged \|= VMSVGAPACKPARAMS_ALIGNMENT;
2278	}
2279	if (pSave->cxRow != cxRow)
2280	{
2281	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, cxRow), pState, pContext);
2282	pSave->fChanged \|= VMSVGAPACKPARAMS_ROW_LENGTH;
2283	}
2284	if (pSave->cyImage != cyImage)
2285	{
2286	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, cyImage), pState, pContext);
2287	pSave->fChanged \|= VMSVGAPACKPARAMS_IMAGE_HEIGHT;
2288	}
2289	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2290	if (pSave->fSwapBytes != 0)
2291	{
2292	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2293	pSave->fChanged \|= VMSVGAPACKPARAMS_SWAP_BYTES;
2294	}
2295	if (pSave->fLsbFirst != 0)
2296	{
2297	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2298	pSave->fChanged \|= VMSVGAPACKPARAMS_LSB_FIRST;
2299	}
2300	if (pSave->cSkipRows != 0)
2301	{
2302	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2303	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_ROWS;
2304	}
2305	if (pSave->cSkipPixels != 0)
2306	{
2307	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2308	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_PIXELS;
2309	}
2310	if (pSave->cSkipImages != 0)
2311	{
2312	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2313	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_IMAGES;
2314	}
2315	#endif
2316	}
2317
2318
2319	/**
2320	* Restores texture unpacking parameters.
2321	*
2322	* @param pState The VMSVGA3D state structure.
2323	* @param pContext The active context.
2324	* @param pSave Where stuff was saved.
2325	*/
2326	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext,
2327	PCVMSVGAPACKPARAMS pSave)
2328	{
2329	RT_NOREF(pState);
2330
2331	if (pSave->fChanged & VMSVGAPACKPARAMS_ALIGNMENT)
2332	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2333	if (pSave->fChanged & VMSVGAPACKPARAMS_ROW_LENGTH)
2334	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2335	if (pSave->fChanged & VMSVGAPACKPARAMS_IMAGE_HEIGHT)
2336	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2337	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2338	if (pSave->fChanged & VMSVGAPACKPARAMS_SWAP_BYTES)
2339	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2340	if (pSave->fChanged & VMSVGAPACKPARAMS_LSB_FIRST)
2341	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2342	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_ROWS)
2343	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2344	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_PIXELS)
2345	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2346	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_IMAGES)
2347	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2348	#endif
2349	}
2350
2351	/**
2352	* Create D3D/OpenGL texture object for the specified surface.
2353	*
2354	* Surfaces are created when needed.
2355	*
2356	* @param pState The VMSVGA3d state.
2357	* @param pContext The context.
2358	* @param idAssociatedContext Probably the same as pContext->id.
2359	* @param pSurface The surface to create the texture for.
2360	*/
2361	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2362	PVMSVGA3DSURFACE pSurface)
2363	{
2364	RT_NOREF(idAssociatedContext);
2365
2366	LogFunc(("sid=%u\n", pSurface->id));
2367
2368	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2369
2370	/* Fugure out what kind of texture we are creating. */
2371	GLenum binding;
2372	GLenum target;
2373	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2374	{
2375	Assert(pSurface->cFaces == 6);
2376
2377	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2378	target = GL_TEXTURE_CUBE_MAP;
2379	}
2380	else
2381	{
2382	if (pSurface->paMipmapLevels[0].mipmapSize.depth > 1)
2383	{
2384	binding = GL_TEXTURE_BINDING_3D;
2385	target = GL_TEXTURE_3D;
2386	}
2387	else
2388	{
2389	Assert(pSurface->cFaces == 1);
2390
2391	binding = GL_TEXTURE_BINDING_2D;
2392	target = GL_TEXTURE_2D;
2393	}
2394	}
2395
2396	/* All textures are created in the SharedCtx. */
2397	uint32_t idPrevCtx = pState->idActiveContext;
2398	pContext = &pState->SharedCtx;
2399	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2400
2401	glGenTextures(1, &pSurface->oglId.texture);
2402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2403	if (pSurface->fEmulated)
2404	{
2405	glGenTextures(1, &pSurface->idEmulated);
2406	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2407	}
2408	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2409
2410	GLint activeTexture = 0;
2411	glGetIntegerv(binding, &activeTexture);
2412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2413
2414	/* Must bind texture to the current context in order to change it. */
2415	glBindTexture(target, pSurface->oglId.texture);
2416	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2417
2418	/* Set the unpacking parameters. */
2419	VMSVGAPACKPARAMS SavedParams;
2420	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2421
2422	/** @todo Set the mip map generation filter settings. */
2423
2424	/* Set the mipmap base and max level parameters. */
2425	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2426	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2427	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2428	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2429
2430	if (pSurface->fDirty)
2431	LogFunc(("sync dirty texture\n"));
2432
2433	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2434	if (target == GL_TEXTURE_3D)
2435	{
2436	for (uint32_t i = 0; i < numMipLevels; ++i)
2437	{
2438	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2439	* exposing random host memory to the guest and helps a with the fedora 21 surface
2440	* corruption issues (launchpad, background, search field, login).
2441	*/
2442	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2443
2444	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2445	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2446
2447	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2448	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2449	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2450	{
2451	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2452	i,
2453	pSurface->internalFormatGL,
2454	pMipLevel->mipmapSize.width,
2455	pMipLevel->mipmapSize.height,
2456	pMipLevel->mipmapSize.depth,
2457	0,
2458	pMipLevel->cbSurface,
2459	pMipLevel->pSurfaceData);
2460	}
2461	else
2462	{
2463	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2464	i,
2465	pSurface->internalFormatGL,
2466	pMipLevel->mipmapSize.width,
2467	pMipLevel->mipmapSize.height,
2468	pMipLevel->mipmapSize.depth,
2469	0, /* border */
2470	pSurface->formatGL,
2471	pSurface->typeGL,
2472	pMipLevel->pSurfaceData);
2473	}
2474	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2475
2476	pMipLevel->fDirty = false;
2477	}
2478	}
2479	else if (target == GL_TEXTURE_CUBE_MAP)
2480	{
2481	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2482	{
2483	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2484
2485	for (uint32_t i = 0; i < numMipLevels; ++i)
2486	{
2487	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[iFace * numMipLevels + i];
2488	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2489	Assert(pMipLevel->mipmapSize.depth == 1);
2490
2491	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2492	iFace, i, pMipLevel->fDirty));
2493
2494	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2495	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2496	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2497	{
2498	pState->ext.glCompressedTexImage2D(Face,
2499	i,
2500	pSurface->internalFormatGL,
2501	pMipLevel->mipmapSize.width,
2502	pMipLevel->mipmapSize.height,
2503	0,
2504	pMipLevel->cbSurface,
2505	pMipLevel->pSurfaceData);
2506	}
2507	else
2508	{
2509	glTexImage2D(Face,
2510	i,
2511	pSurface->internalFormatGL,
2512	pMipLevel->mipmapSize.width,
2513	pMipLevel->mipmapSize.height,
2514	0,
2515	pSurface->formatGL,
2516	pSurface->typeGL,
2517	pMipLevel->pSurfaceData);
2518	}
2519	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2520
2521	pMipLevel->fDirty = false;
2522	}
2523	}
2524	}
2525	else if (target == GL_TEXTURE_2D)
2526	{
2527	for (uint32_t i = 0; i < numMipLevels; ++i)
2528	{
2529	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2530	* exposing random host memory to the guest and helps a with the fedora 21 surface
2531	* corruption issues (launchpad, background, search field, login).
2532	*/
2533	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2534	Assert(pMipLevel->mipmapSize.depth == 1);
2535
2536	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2537	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2538
2539	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2540	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2541	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2542	{
2543	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2544	i,
2545	pSurface->internalFormatGL,
2546	pMipLevel->mipmapSize.width,
2547	pMipLevel->mipmapSize.height,
2548	0,
2549	pMipLevel->cbSurface,
2550	pMipLevel->pSurfaceData);
2551	}
2552	else
2553	{
2554	glTexImage2D(GL_TEXTURE_2D,
2555	i,
2556	pSurface->internalFormatGL,
2557	pMipLevel->mipmapSize.width,
2558	pMipLevel->mipmapSize.height,
2559	0,
2560	pSurface->formatGL,
2561	pSurface->typeGL,
2562	NULL);
2563	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2564
2565	if (pSurface->fEmulated)
2566	{
2567	/* Bind the emulated texture and init it. */
2568	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2569	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2570
2571	glTexImage2D(GL_TEXTURE_2D,
2572	i,
2573	pSurface->internalFormatGL,
2574	pMipLevel->mipmapSize.width,
2575	pMipLevel->mipmapSize.height,
2576	0,
2577	pSurface->formatGL,
2578	pSurface->typeGL,
2579	NULL);
2580	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2581	}
2582
2583	/* Fetch texture data: either to the actual or to the emulated texture.
2584	* The pSurfaceData buffer may be smaller than the entire texture
2585	* for emulated formats, in which case only part of the texture is synched.
2586	*/
2587	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2588	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2589	glTexSubImage2D(GL_TEXTURE_2D,
2590	i,
2591	0,
2592	0,
2593	cBlocksX,
2594	cBlocksY,
2595	pSurface->formatGL,
2596	pSurface->typeGL,
2597	pMipLevel->pSurfaceData);
2598	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2599
2600	if (pSurface->fEmulated)
2601	{
2602	/* Update the actual texture using the format converter. */
2603	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2604
2605	/* Rebind the actual texture. */
2606	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2607	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2608	}
2609	}
2610	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2611
2612	pMipLevel->fDirty = false;
2613	}
2614	}
2615
2616	pSurface->fDirty = false;
2617
2618	/* Restore unpacking parameters. */
2619	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2620
2621	/* Restore the old active texture. */
2622	glBindTexture(target, activeTexture);
2623	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2624
2625	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2626	pSurface->targetGL = target;
2627	pSurface->bindingGL = binding;
2628
2629	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2630	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2631	return VINF_SUCCESS;
2632	}
2633
2634
2635	/**
2636	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2637	*
2638	* @returns VBox status code.
2639	* @param pThis The VGA device instance.
2640	* @param pState The VMSVGA3d state.
2641	* @param pDstSurface The destination host surface.
2642	* @param uDstFace The destination face (valid).
2643	* @param uDstMipmap The destination mipmap level (valid).
2644	* @param pDstBox The destination box.
2645	* @param pSrcSurface The source host surface.
2646	* @param uSrcFace The destination face (valid).
2647	* @param uSrcMipmap The source mimap level (valid).
2648	* @param pSrcBox The source box.
2649	* @param enmMode The strecht blt mode .
2650	* @param pContext The VMSVGA3d context (already current for OGL).
2651	*/
2652	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2653	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2654	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2655	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2656	{
2657	RT_NOREF(pThis);
2658
2659	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2660	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2661
2662	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2663	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2664	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2665	{
2666	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2667	glAttachment = GL_DEPTH_ATTACHMENT;
2668	glMask = GL_DEPTH_BUFFER_BIT;
2669	}
2670
2671	/* Activate the read and draw framebuffer objects. */
2672	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2673	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2674	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2675	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2676
2677	/* Bind the source and destination objects to the right place. */
2678	GLenum textarget;
2679	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2680	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2681	else
2682	{
2683	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2684	textarget = GL_TEXTURE_2D;
2685	}
2686	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2687	pSrcSurface->oglId.texture, uSrcMipmap);
2688	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2689
2690	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2691	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2692	else
2693	{
2694	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2695	textarget = GL_TEXTURE_2D;
2696	}
2697	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2698	pDstSurface->oglId.texture, uDstMipmap);
2699	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2700
2701	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2702	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2703	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2704	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2705	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2706
2707	pState->ext.glBlitFramebuffer(pSrcBox->x,
2708	pSrcBox->y,
2709	pSrcBox->x + pSrcBox->w, /* exclusive. */
2710	pSrcBox->y + pSrcBox->h,
2711	pDstBox->x,
2712	pDstBox->y,
2713	pDstBox->x + pDstBox->w, /* exclusive. */
2714	pDstBox->y + pDstBox->h,
2715	glMask,
2716	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2717	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2718
2719	/* Reset the frame buffer association */
2720	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2721	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2722
2723	return VINF_SUCCESS;
2724	}
2725
2726	/**
2727	* Save texture packing parameters and loads those appropriate for the given
2728	* surface.
2729	*
2730	* @param pState The VMSVGA3D state structure.
2731	* @param pContext The active context.
2732	* @param pSurface The surface.
2733	* @param pSave Where to save stuff.
2734	*/
2735	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2736	PVMSVGAPACKPARAMS pSave)
2737	{
2738	RT_NOREF(pState);
2739	/*
2740	* Save (ignore errors, setting the defaults we want and avoids restore).
2741	*/
2742	pSave->iAlignment = 1;
2743	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2744	pSave->cxRow = 0;
2745	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2746
2747	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2748	pSave->cyImage = 0;
2749	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2750	Assert(pSave->cyImage == 0);
2751
2752	pSave->fSwapBytes = GL_FALSE;
2753	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2754	Assert(pSave->fSwapBytes == GL_FALSE);
2755
2756	pSave->fLsbFirst = GL_FALSE;
2757	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2758	Assert(pSave->fLsbFirst == GL_FALSE);
2759
2760	pSave->cSkipRows = 0;
2761	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2762	Assert(pSave->cSkipRows == 0);
2763
2764	pSave->cSkipPixels = 0;
2765	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2766	Assert(pSave->cSkipPixels == 0);
2767
2768	pSave->cSkipImages = 0;
2769	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2770	Assert(pSave->cSkipImages == 0);
2771
2772	VMSVGA3D_CLEAR_GL_ERRORS();
2773	#endif
2774
2775	/*
2776	* Setup unpack.
2777	*
2778	* Note! We use 1 as alignment here because we currently don't do any
2779	* aligning of line pitches anywhere.
2780	*/
2781	NOREF(pSurface);
2782	if (pSave->iAlignment != 1)
2783	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2784	if (pSave->cxRow != 0)
2785	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2786	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2787	if (pSave->cyImage != 0)
2788	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2789	if (pSave->fSwapBytes != 0)
2790	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2791	if (pSave->fLsbFirst != 0)
2792	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2793	if (pSave->cSkipRows != 0)
2794	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2795	if (pSave->cSkipPixels != 0)
2796	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2797	if (pSave->cSkipImages != 0)
2798	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2799	#endif
2800	}
2801
2802
2803	/**
2804	* Restores texture packing parameters.
2805	*
2806	* @param pState The VMSVGA3D state structure.
2807	* @param pContext The active context.
2808	* @param pSurface The surface.
2809	* @param pSave Where stuff was saved.
2810	*/
2811	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2812	PCVMSVGAPACKPARAMS pSave)
2813	{
2814	RT_NOREF(pState, pSurface);
2815	if (pSave->iAlignment != 1)
2816	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2817	if (pSave->cxRow != 0)
2818	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2819	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2820	if (pSave->cyImage != 0)
2821	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2822	if (pSave->fSwapBytes != 0)
2823	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2824	if (pSave->fLsbFirst != 0)
2825	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2826	if (pSave->cSkipRows != 0)
2827	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2828	if (pSave->cSkipPixels != 0)
2829	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2830	if (pSave->cSkipImages != 0)
2831	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2832	#endif
2833	}
2834
2835
2836	/**
2837	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2838	*
2839	* @returns Failure status code or @a rc.
2840	* @param pThis The shared VGA/VMSVGA instance data.
2841	* @param pThisCC The VGA/VMSVGA state for ring-3.
2842	* @param pState The VMSVGA3d state.
2843	* @param pSurface The host surface.
2844	* @param pMipLevel Mipmap level. The caller knows it already.
2845	* @param uHostFace The host face (valid).
2846	* @param uHostMipmap The host mipmap level (valid).
2847	* @param GuestPtr The guest pointer.
2848	* @param cbGuestPitch The guest pitch.
2849	* @param transfer The transfer direction.
2850	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2851	* @param pContext The context (for OpenGL).
2852	* @param rc The current rc for all boxes.
2853	* @param iBox The current box number (for Direct 3D).
2854	*/
2855	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVGASTATECC pThisCC, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2856	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2857	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2858	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2859	{
2860	RT_NOREF(iBox);
2861
2862	switch (pSurface->enmOGLResType)
2863	{
2864	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2865	{
2866	uint32_t cbSurfacePitch;
2867	uint8_t *pDoubleBuffer;
2868	uint64_t offHst;
2869
2870	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2871	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2872	uint32_t const u32HostZ = pBox->z;
2873	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2874	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2875
2876	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2877	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2878	uint32_t const u32GuestZ = pBox->srcz / pSurface->cyBlock;
2879	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2880	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2881
2882	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2883	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2884	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2885
2886	GLenum texImageTarget;
2887	if (pSurface->targetGL == GL_TEXTURE_3D)
2888	{
2889	texImageTarget = GL_TEXTURE_3D;
2890	}
2891	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2892	{
2893	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2894	}
2895	else
2896	{
2897	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2898	texImageTarget = GL_TEXTURE_2D;
2899	}
2900
2901	/* The buffer must be large enough to hold entire texture in the OpenGL format. */
2902	pDoubleBuffer = (uint8_t )RTMemAlloc(pSurface->cbBlockGL pMipLevel->cBlocks);
2903	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2904
2905	if (transfer == SVGA3D_READ_HOST_VRAM)
2906	{
2907	/* Read the entire texture to the double buffer. */
2908	GLint activeTexture;
2909
2910	/* Must bind texture to the current context in order to read it. */
2911	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2912	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2913
2914	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2915	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2916
2917	if (pSurface->fEmulated)
2918	{
2919	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2920	}
2921
2922	/* Set row length and alignment of the input data. */
2923	VMSVGAPACKPARAMS SavedParams;
2924	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2925
2926	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2927	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2928	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2929	{
2930	pState->ext.glGetCompressedTexImage(texImageTarget, uHostMipmap, pDoubleBuffer);
2931	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2932	}
2933	else
2934	{
2935	glGetTexImage(texImageTarget, uHostMipmap, pSurface->formatGL, pSurface->typeGL, pDoubleBuffer);
2936	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2937	}
2938
2939	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2940
2941	/* Restore the old active texture. */
2942	glBindTexture(pSurface->targetGL, activeTexture);
2943	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2944
2945	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch + u32HostZ * pMipLevel->cbSurfacePlane;
2946	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2947	}
2948	else
2949	{
2950	/* The buffer will contain only the copied rectangle. */
2951	offHst = 0;
2952	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2953	}
2954
2955	uint64_t offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch + u32GuestZ * cbGuestPitch * pMipLevel->mipmapSize.height;
2956
2957	for (uint32_t iPlane = 0; iPlane < pBox->d; ++iPlane)
2958	{
2959	AssertBreak(offHst < UINT32_MAX);
2960	AssertBreak(offGst < UINT32_MAX);
2961
2962	rc = vmsvgaR3GmrTransfer(pThis,
2963	pThisCC,
2964	transfer,
2965	pDoubleBuffer,
2966	pMipLevel->cbSurface,
2967	(uint32_t)offHst,
2968	cbSurfacePitch,
2969	GuestPtr,
2970	(uint32_t)offGst,
2971	cbGuestPitch,
2972	cBlocksX * pSurface->cbBlock,
2973	cBlocksY);
2974	AssertRC(rc);
2975
2976	offHst += pMipLevel->cbSurfacePlane;
2977	offGst += pMipLevel->mipmapSize.height * cbGuestPitch;
2978	}
2979
2980	/* Update the opengl surface data. */
2981	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2982	{
2983	GLint activeTexture = 0;
2984	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2985	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2986
2987	/* Must bind texture to the current context in order to change it. */
2988	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2989	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2990
2991	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2992
2993	/* Set row length and alignment of the input data. */
2994	/* We do not need to set ROW_LENGTH to w here, because the image in pDoubleBuffer is tightly packed. */
2995	VMSVGAPACKPARAMS SavedParams;
2996	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2997
2998	if (texImageTarget == GL_TEXTURE_3D)
2999	{
3000	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3001	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3002	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3003	{
3004	pState->ext.glCompressedTexSubImage3D(texImageTarget,
3005	uHostMipmap,
3006	pBox->x,
3007	pBox->y,
3008	pBox->z,
3009	pBox->w,
3010	pBox->h,
3011	pBox->d,
3012	pSurface->internalFormatGL,
3013	cbSurfacePitch * cBlocksY * pBox->d,
3014	pDoubleBuffer);
3015	}
3016	else
3017	{
3018	pState->ext.glTexSubImage3D(texImageTarget,
3019	uHostMipmap,
3020	u32HostBlockX,
3021	u32HostBlockY,
3022	pBox->z,
3023	cBlocksX,
3024	cBlocksY,
3025	pBox->d,
3026	pSurface->formatGL,
3027	pSurface->typeGL,
3028	pDoubleBuffer);
3029	}
3030	}
3031	else
3032	{
3033	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3034	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3035	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3036	{
3037	pState->ext.glCompressedTexSubImage2D(texImageTarget,
3038	uHostMipmap,
3039	pBox->x,
3040	pBox->y,
3041	pBox->w,
3042	pBox->h,
3043	pSurface->internalFormatGL,
3044	cbSurfacePitch * cBlocksY,
3045	pDoubleBuffer);
3046	}
3047	else
3048	{
3049	glTexSubImage2D(texImageTarget,
3050	uHostMipmap,
3051	u32HostBlockX,
3052	u32HostBlockY,
3053	cBlocksX,
3054	cBlocksY,
3055	pSurface->formatGL,
3056	pSurface->typeGL,
3057	pDoubleBuffer);
3058	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3059
3060	if (pSurface->fEmulated)
3061	{
3062	/* Convert the texture to the actual texture if necessary */
3063	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
3064	}
3065	}
3066	}
3067	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3068
3069	/* Restore old values. */
3070	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
3071
3072	/* Restore the old active texture. */
3073	glBindTexture(pSurface->targetGL, activeTexture);
3074	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3075	}
3076
3077	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
3078
3079	/* Free the double buffer. */
3080	RTMemFree(pDoubleBuffer);
3081	break;
3082	}
3083
3084	case VMSVGA3D_OGLRESTYPE_BUFFER:
3085	{
3086	/* Buffers are uncompressed. */
3087	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
3088
3089	/* Caller already clipped pBox and buffers are 1-dimensional. */
3090	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
3091
3092	VMSVGA3D_CLEAR_GL_ERRORS();
3093	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3094	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3095	{
3096	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3097	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3098	if (RT_LIKELY(pbData != NULL))
3099	{
3100	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3101	GLint cbStrictBufSize;
3102	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3103	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3104	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3105	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3106	#endif
3107	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
3108	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
3109	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
3110	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
3111
3112	/* The caller already copied the data to the pMipLevel->pSurfaceData buffer, see VMSVGA3DSURFACE_NEEDS_DATA. */
3113	uint32_t const offHst = pBox->x * pSurface->cbBlock;
3114	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
3115
3116	memcpy(pbData + offHst, (uint8_t *)pMipLevel->pSurfaceData + offHst, cbWidth);
3117
3118	Log4(("Buffer updated at [0x%x;0x%x):\n%.Rhxd\n", offHst, offHst + cbWidth, cbWidth, (uint8_t )pbData + offHst));
3119
3120	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3122	}
3123	else
3124	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3125	}
3126	else
3127	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3128	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3130	break;
3131	}
3132
3133	default:
3134	AssertFailed();
3135	break;
3136	}
3137
3138	return rc;
3139	}
3140
3141	int vmsvga3dGenerateMipmaps(PVGASTATECC pThisCC, uint32_t sid, SVGA3dTextureFilter filter)
3142	{
3143	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3144	PVMSVGA3DSURFACE pSurface;
3145	int rc = VINF_SUCCESS;
3146	PVMSVGA3DCONTEXT pContext;
3147	uint32_t cid;
3148	GLint activeTexture = 0;
3149
3150	AssertReturn(pState, VERR_NO_MEMORY);
3151
3152	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
3153	AssertRCReturn(rc, rc);
3154
3155	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3156	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3157	pSurface->autogenFilter = filter;
3158
3159	LogFunc(("sid=%u filter=%d\n", sid, filter));
3160
3161	cid = SVGA3D_INVALID_ID;
3162	pContext = &pState->SharedCtx;
3163	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3164
3165	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3166	{
3167	/* Unknown surface type; turn it into a texture. */
3168	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
3169	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
3170	AssertRCReturn(rc, rc);
3171	}
3172	else
3173	{
3174	/** @todo new filter */
3175	AssertFailed();
3176	}
3177
3178	glGetIntegerv(pSurface->bindingGL, &activeTexture);
3179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3180
3181	/* Must bind texture to the current context in order to change it. */
3182	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
3183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3184
3185	/* Generate the mip maps. */
3186	pState->ext.glGenerateMipmap(pSurface->targetGL);
3187	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3188
3189	/* Restore the old texture. */
3190	glBindTexture(pSurface->targetGL, activeTexture);
3191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3192
3193	return VINF_SUCCESS;
3194	}
3195
3196
3197	#ifdef RT_OS_LINUX
3198	/**
3199	* X11 event handling thread.
3200	*
3201	* @returns VINF_SUCCESS (ignored)
3202	* @param hThreadSelf thread handle
3203	* @param pvUser pointer to pState structure
3204	*/
3205	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3206	{
3207	RT_NOREF(hThreadSelf);
3208	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3209	while (!pState->bTerminate)
3210	{
3211	while (XPending(pState->display) > 0)
3212	{
3213	XEvent event;
3214	XNextEvent(pState->display, &event);
3215
3216	switch (event.type)
3217	{
3218	default:
3219	break;
3220	}
3221	}
3222	/* sleep for 16ms to not burn too many cycles */
3223	RTThreadSleep(16);
3224	}
3225	return VINF_SUCCESS;
3226	}
3227	#endif // RT_OS_LINUX
3228
3229
3230	/**
3231	* Create a new 3d context
3232	*
3233	* @returns VBox status code.
3234	* @param pThisCC The VGA/VMSVGA state for ring-3.
3235	* @param cid Context id
3236	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3237	*/
3238	int vmsvga3dContextDefineOgl(PVGASTATECC pThisCC, uint32_t cid, uint32_t fFlags)
3239	{
3240	int rc;
3241	PVMSVGA3DCONTEXT pContext;
3242	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3243
3244	AssertReturn(pState, VERR_NO_MEMORY);
3245	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3246	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3247	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3248	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3249	#endif
3250
3251	Log(("vmsvga3dContextDefine id %x\n", cid));
3252
3253	if (cid == VMSVGA3D_SHARED_CTX_ID)
3254	pContext = &pState->SharedCtx;
3255	else
3256	{
3257	if (cid >= pState->cContexts)
3258	{
3259	/* Grow the array. */
3260	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3261	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3262	AssertReturn(pvNew, VERR_NO_MEMORY);
3263	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3264	while (pState->cContexts < cNew)
3265	{
3266	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3267	AssertReturn(pContext, VERR_NO_MEMORY);
3268	pContext->id = SVGA3D_INVALID_ID;
3269	pState->papContexts[pState->cContexts++] = pContext;
3270	}
3271	}
3272	/* If one already exists with this id, then destroy it now. */
3273	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3274	vmsvga3dContextDestroy(pThisCC, cid);
3275
3276	pContext = pState->papContexts[cid];
3277	}
3278
3279	/*
3280	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3281	*/
3282	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3283	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3284	{
3285	pSharedCtx = &pState->SharedCtx;
3286	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3287	{
3288	rc = vmsvga3dContextDefineOgl(pThisCC, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3289	AssertLogRelRCReturn(rc, rc);
3290
3291	/* Create resources which use the shared context. */
3292	vmsvga3dOnSharedContextDefine(pState);
3293	}
3294	}
3295
3296	/*
3297	* Initialize the context.
3298	*/
3299	memset(pContext, 0, sizeof(*pContext));
3300	pContext->id = cid;
3301	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3302	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3303
3304	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3305	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3306	pContext->idFramebuffer = OPENGL_INVALID_ID;
3307	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3308	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3309
3310	rc = ShaderContextCreate(&pContext->pShaderContext);
3311	AssertRCReturn(rc, rc);
3312
3313	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3314	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3315
3316	#ifdef RT_OS_WINDOWS
3317	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3318	* to present the rendered image. Rendered images from the guest will be copied to
3319	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3320	* system memory in the guest VRAM.
3321	*/
3322	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3323	AssertRCReturn(rc, rc);
3324
3325	pContext->hdc = GetDC(pContext->hwnd);
3326	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3327
3328	PIXELFORMATDESCRIPTOR pfd = {
3329	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3330	1, /* version number */
3331	PFD_DRAW_TO_WINDOW \| /* support window */
3332	PFD_SUPPORT_OPENGL, /* support OpenGL */
3333	PFD_TYPE_RGBA, /* RGBA type */
3334	24, /* 24-bit color depth */
3335	0, 0, 0, 0, 0, 0, /* color bits ignored */
3336	8, /* alpha buffer */
3337	0, /* shift bit ignored */
3338	0, /* no accumulation buffer */
3339	0, 0, 0, 0, /* accum bits ignored */
3340	16, /* set depth buffer */
3341	16, /* set stencil buffer */
3342	0, /* no auxiliary buffer */
3343	PFD_MAIN_PLANE, /* main layer */
3344	0, /* reserved */
3345	0, 0, 0 /* layer masks ignored */
3346	};
3347	int pixelFormat;
3348	BOOL ret;
3349
3350	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3351	/** @todo is this really necessary?? */
3352	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3353	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3354
3355	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3356	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3357
3358	pContext->hglrc = wglCreateContext(pContext->hdc);
3359	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3360
3361	if (pSharedCtx)
3362	{
3363	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3364	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3365	}
3366
3367	#elif defined(RT_OS_DARWIN)
3368	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3369
3370	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3371	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3372	NULL,
3373	4, 4,
3374	pShareContext, pContext->fOtherProfile);
3375
3376	#else
3377	if (pState->display == NULL)
3378	{
3379	/* get an X display and make sure we have glX 1.3 */
3380	pState->display = XOpenDisplay(0);
3381	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3382	int glxMajor, glxMinor;
3383	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3384	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3385	/* start our X event handling thread */
3386	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3387	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3388	}
3389
3390	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3391	/* Create a small 4x4 window required for GL context. */
3392	int attrib[] =
3393	{
3394	GLX_RGBA,
3395	GLX_RED_SIZE, 1,
3396	GLX_GREEN_SIZE, 1,
3397	GLX_BLUE_SIZE, 1,
3398	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3399	GLX_DOUBLEBUFFER,
3400	None
3401	};
3402	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3403	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3404	XSetWindowAttributes swa;
3405	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3406	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3407	swa.border_pixel = 0;
3408	swa.background_pixel = 0;
3409	swa.event_mask = StructureNotifyMask;
3410	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3411	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3412	0, 0, 4, 4,
3413	0, vi->depth, InputOutput,
3414	vi->visual, flags, &swa);
3415	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3416
3417	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3418
3419	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3420	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3421	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3422	#endif
3423
3424	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3425
3426	/* NULL during the first PowerOn call. */
3427	if (pState->ext.glGenFramebuffers)
3428	{
3429	/* Create a framebuffer object for this context. */
3430	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3431	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3432
3433	/* Bind the object to the framebuffer target. */
3434	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3435	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3436
3437	/* Create read and draw framebuffer objects for this context. */
3438	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3439	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3440
3441	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3442	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3443
3444	}
3445	#if 0
3446	/** @todo move to shader lib!!! */
3447	/* Clear the screen */
3448	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3449
3450	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3451	glClearIndex(0);
3452	glClearDepth(1);
3453	glClearStencil(0xffff);
3454	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3455	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3456	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3457	if (pState->ext.glProvokingVertex)
3458	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3459	/** @todo move to shader lib!!! */
3460	#endif
3461	return VINF_SUCCESS;
3462	}
3463
3464	#if defined(RT_OS_LINUX)
3465	/*
3466	* HW accelerated graphics output.
3467	*/
3468
3469	/* Send a notification to the UI. */
3470	static int vmsvga3dDrvNotifyHwScreen(PVGASTATECC pThisCC, VBOX3D_NOTIFY_TYPE enmNotification,
3471	uint32_t idScreen, Pixmap pixmap, void *pvData, size_t cbData)
3472	{
3473	#if 0
3474	/* Emulates no support from frontend. */
3475	RT_NOREF(pThisCC, enmNotification, idScreen, pixmap, pvData, cbData);
3476	return VERR_NOT_SUPPORTED;
3477	#else
3478	uint8_t au8Buffer[128];
3479	AssertLogRelMsgReturn(cbData <= sizeof(au8Buffer) - sizeof(VBOX3DNOTIFY),
3480	("cbData %zu", cbData),
3481	VERR_INVALID_PARAMETER);
3482
3483	VBOX3DNOTIFY p = (VBOX3DNOTIFY )&au8Buffer[0];
3484	p->enmNotification = enmNotification;
3485	p->iDisplay = idScreen;
3486	p->u32Reserved = 0;
3487	p->cbData = cbData + sizeof(uint64_t);
3488	/* au8Data consists of a 64 bit pixmap handle followed by notification specific data. */
3489	AssertCompile(sizeof(pixmap) <= sizeof(uint64_t));
3490	(uint64_t )&p->au8Data[0] = (uint64_t)pixmap;
3491	memcpy(&p->au8Data[sizeof(uint64_t)], pvData, cbData);
3492
3493	int rc = pThisCC->pDrv->pfn3DNotifyProcess(pThisCC->pDrv, p);
3494	return rc;
3495	#endif
3496	}
3497
3498	static int ctxErrorHandler(Display dpy, XErrorEvent ev)
3499	{
3500	RT_NOREF(dpy);
3501	LogRel4(("VMSVGA: XError %d\n", (int)ev->error_code));
3502	return 0;
3503	}
3504
3505	/* Create a GLX pixmap as a HW accelerated screen. */
3506	static int vmsvga3dHwScreenCreate(PVMSVGA3DSTATE pState, unsigned int cWidth, unsigned int cHeight, VMSVGAHWSCREEN *p)
3507	{
3508	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3509
3510	int rc = VINF_SUCCESS;
3511
3512	/*
3513	* Create a new GL context, which will be used for copying to the screen pixmap.
3514	*/
3515
3516	/* FBConfig attributes. */
3517	static int const aConfigAttribList[] =
3518	{
3519	// GLX_RENDER_TYPE, GLX_RGBA_BIT,
3520	// GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR,
3521	// GLX_X_RENDERABLE, True, // Render to GLX pixmaps
3522	GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT, // Must support GLX pixmaps
3523	GLX_BIND_TO_TEXTURE_RGBA_EXT, True, // Must support GLX_EXT_texture_from_pixmap
3524	GLX_BIND_TO_TEXTURE_TARGETS_EXT, GLX_TEXTURE_RECTANGLE_BIT_EXT, // Must support GL_TEXTURE_RECTANGLE for the frontend code
3525	GLX_DOUBLEBUFFER, False, // No need for double buffering for a pixmap.
3526	GLX_RED_SIZE, 8, // True color RGB with 8 bits per channel.
3527	GLX_GREEN_SIZE, 8,
3528	GLX_BLUE_SIZE, 8,
3529	GLX_ALPHA_SIZE, 8,
3530	GLX_STENCIL_SIZE, 0, // No stencil buffer
3531	GLX_DEPTH_SIZE, 0, // No depth buffer
3532	GLX_CONFIG_CAVEAT, GLX_NONE,
3533	None
3534	};
3535
3536	/* Find a suitable FB config. */
3537	int cConfigs = 0;
3538	GLXFBConfig *paConfigs = glXChooseFBConfig(pState->display, 0, aConfigAttribList, &cConfigs);
3539	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: paConfigs %p cConfigs %d\n", (void *)paConfigs, cConfigs));
3540	if (paConfigs)
3541	{
3542	XVisualInfo *vi = NULL;
3543	int i = 0;
3544	for (; i < cConfigs; ++i)
3545	{
3546	/* Use XFree to free the data returned in the previous iteration of this loop. */
3547	if (vi)
3548	XFree(vi);
3549
3550	vi = glXGetVisualFromFBConfig(pState->display, paConfigs[i]);
3551	if (!vi)
3552	continue;
3553
3554	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: %p vid %lu screen %d depth %d r %lu g %lu b %lu clrmap %d bitsperrgb %d\n",
3555	(void *)vi->visual, vi->visualid, vi->screen, vi->depth,
3556	vi->red_mask, vi->green_mask, vi->blue_mask, vi->colormap_size, vi->bits_per_rgb));
3557
3558	/* Search for 32 bits per pixel. */
3559	if (vi->depth != 32)
3560	continue;
3561
3562	/* 8 bits per color component is enough. */
3563	if (vi->bits_per_rgb != 8)
3564	continue;
3565
3566	/* Render to pixmap. */
3567	int value = 0;
3568	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_DRAWABLE_TYPE, &value);
3569	if (!(value & GLX_PIXMAP_BIT))
3570	continue;
3571
3572	/* Pixmap will be used as TEXTURE_RECTANGLE. */
3573	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_BIND_TO_TEXTURE_TARGETS_EXT, &value);
3574	if (!(value & GLX_TEXTURE_RECTANGLE_BIT_EXT))
3575	continue;
3576
3577	/* Need to bind to a texture using GLX_EXT_texture_from_pixmap. */
3578	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_BIND_TO_TEXTURE_RGBA_EXT, &value);
3579	if (value == 0)
3580	{
3581	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_BIND_TO_TEXTURE_RGB_EXT, &value);
3582	if (value == 0)
3583	continue;
3584	}
3585
3586	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_Y_INVERTED_EXT, &value);
3587	p->fYInverted = (value == 1);
3588
3589	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_BIND_TO_MIPMAP_TEXTURE_EXT, &value);
3590	p->fMipmap = (value > 0);
3591
3592	/* This FB config can be used. */
3593	break;
3594	}
3595
3596	if (i < cConfigs)
3597	{
3598	/* Found a suitable config with index i. */
3599	p->visualid = vi->visualid;
3600
3601	Window const rootWindow = RootWindow(pState->display, vi->screen);
3602	p->pixmap = XCreatePixmap(pState->display, rootWindow, cWidth, cHeight, vi->depth);
3603	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: p->pixmap %ld\n", p->pixmap));
3604
3605	static int const aPixmapAttribList[] =
3606	{
3607	GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_RECTANGLE_EXT,
3608	GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGBA_EXT,
3609	GLX_MIPMAP_TEXTURE_EXT, p->fMipmap,
3610	None
3611	};
3612	p->glxpixmap = glXCreatePixmap(pState->display, paConfigs[i], p->pixmap, aPixmapAttribList);
3613	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: p->glxpixmap %ld\n", p->glxpixmap));
3614
3615	p->glxctx = glXCreateContext(pState->display, vi, pState->SharedCtx.glxContext, GL_TRUE);
3616	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: p->glxctx %p\n", (void *)p->glxctx));
3617
3618	XSync(pState->display, False);
3619	}
3620	else
3621	{
3622	/* A suitable config is not found. */
3623	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: no FBConfig\n"));
3624	rc = VERR_NOT_SUPPORTED;
3625	}
3626
3627	if (vi)
3628	XFree(vi);
3629
3630	/* "Use XFree to free the memory returned by glXChooseFBConfig." */
3631	XFree(paConfigs);
3632	}
3633	else
3634	{
3635	/* glXChooseFBConfig failed. */
3636	rc = VERR_NOT_SUPPORTED;
3637	}
3638
3639	XSetErrorHandler(oldHandler);
3640	return rc;
3641	}
3642
3643	/* Destroy a HW accelerated screen. */
3644	static void vmsvga3dHwScreenDestroy(PVMSVGA3DSTATE pState, VMSVGAHWSCREEN *p)
3645	{
3646	if (p)
3647	{
3648	LogRel4(("VMSVGA: vmsvga3dHwScreenDestroy: p->glxpixmap %ld, ctx %p\n", p->glxpixmap, (void *)p->glxctx));
3649	if (p->glxctx)
3650	{
3651	/* GLX context is changed here, so other code has to set the appropriate context again. */
3652	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3653	glXMakeCurrent(pState->display, None, NULL);
3654	glXDestroyContext(pState->display, p->glxctx);
3655	}
3656
3657	if (p->glxpixmap)
3658	glXDestroyPixmap(pState->display, p->glxpixmap);
3659
3660	if (p->pixmap)
3661	XFreePixmap(pState->display, p->pixmap);
3662
3663	RT_ZERO(*p);
3664	}
3665	}
3666
3667	#define GLCHECK() \
3668	do { \
3669	int glErr = glGetError(); \
3670	if (glErr != GL_NO_ERROR) LogRel4(("VMSVGA: GL error 0x%x @%d\n", glErr, __LINE__)); \
3671	} while(0)
3672
3673	int vmsvga3dBackDefineScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3674	{
3675	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: screen %u\n", pScreen->idScreen));
3676
3677	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3678	AssertReturn(pState, VERR_NOT_SUPPORTED);
3679
3680	Assert(pScreen->pHwScreen == NULL);
3681
3682	VMSVGAHWSCREEN p = (VMSVGAHWSCREEN )RTMemAllocZ(sizeof(VMSVGAHWSCREEN));
3683	AssertPtrReturn(p, VERR_NO_MEMORY);
3684
3685	int rc = vmsvga3dHwScreenCreate(pState, pScreen->cWidth, pScreen->cHeight, p);
3686	if (RT_SUCCESS(rc))
3687	{
3688	/*
3689	* Setup the OpenGL context of the screen.
3690	*/
3691
3692	/* GLX context is changed here, so other code has to set the appropriate context again. */
3693	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3694
3695	Bool const fSuccess = glXMakeCurrent(pState->display, p->glxpixmap, p->glxctx);
3696	if (fSuccess)
3697	{
3698	/* Work in screen coordinates. */
3699	glMatrixMode(GL_MODELVIEW);
3700	glLoadIdentity();
3701	glOrtho(0, pScreen->cWidth, 0, pScreen->cHeight, -1, 1);
3702	glMatrixMode(GL_PROJECTION);
3703	glLoadIdentity();
3704
3705	/* Set GL state. */
3706	glClearColor(0, 0, 0, 1);
3707	glEnable(GL_TEXTURE_2D);
3708	glDisable(GL_DEPTH_TEST);
3709	glDisable(GL_CULL_FACE);
3710
3711	/* Clear the pixmap. */
3712	glClear(GL_COLOR_BUFFER_BIT);
3713	glFinish();
3714
3715	glXMakeCurrent(pState->display, None, NULL);
3716
3717	rc = vmsvga3dDrvNotifyHwScreen(pThisCC, VBOX3D_NOTIFY_TYPE_HW_SCREEN_CREATED,
3718	pScreen->idScreen, p->pixmap, &p->visualid, sizeof(p->visualid));
3719	}
3720	else
3721	{
3722	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: failed to set current context\n"));
3723	rc = VERR_NOT_SUPPORTED;
3724	}
3725	}
3726
3727	if (RT_SUCCESS(rc))
3728	{
3729	pScreen->pHwScreen = p;
3730	}
3731	else
3732	{
3733	vmsvga3dHwScreenDestroy(pState, p);
3734	RTMemFree(p);
3735	}
3736
3737	return rc;
3738	}
3739
3740	int vmsvga3dBackDestroyScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3741	{
3742	LogRel4(("VMSVGA: vmsvga3dBackDestroyScreen: screen %u\n", pScreen->idScreen));
3743
3744	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3745	AssertReturn(pState, VERR_NOT_SUPPORTED);
3746
3747	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3748
3749	VMSVGAHWSCREEN *p = pScreen->pHwScreen;
3750	if (p)
3751	{
3752	pScreen->pHwScreen = NULL;
3753
3754	vmsvga3dDrvNotifyHwScreen(pThisCC, VBOX3D_NOTIFY_TYPE_HW_SCREEN_DESTROYED,
3755	pScreen->idScreen, p->pixmap, NULL, 0);
3756
3757	vmsvga3dHwScreenDestroy(pState, p);
3758	RTMemFree(p);
3759	}
3760
3761	XSetErrorHandler(oldHandler);
3762
3763	return VINF_SUCCESS;
3764	}
3765
3766	/* Blit a surface to the GLX pixmap. */
3767	int vmsvga3dBackSurfaceBlitToScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen,
3768	SVGASignedRect destRect, SVGA3dSurfaceImageId srcImage,
3769	SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *paRects)
3770	{
3771	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3772	AssertReturn(pState, VERR_NOT_SUPPORTED);
3773
3774	VMSVGAHWSCREEN *p = pScreen->pHwScreen;
3775	AssertReturn(p, VERR_NOT_SUPPORTED);
3776
3777	PVMSVGA3DSURFACE pSurface;
3778	int rc = vmsvga3dSurfaceFromSid(pState, srcImage.sid, &pSurface);
3779	AssertRCReturn(rc, rc);
3780
3781	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface))
3782	{
3783	LogFunc(("src sid=%u flags=0x%x format=%d -> create texture\n", srcImage.sid, pSurface->surfaceFlags, pSurface->format));
3784	rc = vmsvga3dBackCreateTexture(pState, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID, pSurface);
3785	AssertRCReturn(rc, rc);
3786	}
3787
3788	AssertReturn(pSurface->enmOGLResType == VMSVGA3D_OGLRESTYPE_TEXTURE, VERR_NOT_SUPPORTED);
3789
3790	PVMSVGA3DMIPMAPLEVEL pMipLevel;
3791	rc = vmsvga3dMipmapLevel(pSurface, srcImage.face, srcImage.mipmap, &pMipLevel);
3792	AssertRCReturn(rc, rc);
3793
3794	/** @todo Implement. */
3795	RT_NOREF(destRect, cRects, paRects);
3796
3797	/* GLX context is changed here, so other code has to set appropriate context again. */
3798	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3799
3800	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3801
3802	vmsvga3dDrvNotifyHwScreen(pThisCC, VBOX3D_NOTIFY_TYPE_HW_SCREEN_UPDATE_BEGIN, pScreen->idScreen, p->pixmap, NULL, 0);
3803
3804	GLint const w = pScreen->cWidth;
3805	GLint const h = pScreen->cHeight;
3806
3807	GLfloat const wSurf = (GLfloat)pMipLevel->mipmapSize.width;
3808	GLfloat const hSurf = (GLfloat)pMipLevel->mipmapSize.height;
3809	GLfloat const x1 = (GLfloat)srcRect.left / wSurf;
3810	GLfloat const y1 = (GLfloat)srcRect.top / hSurf;
3811	GLfloat const x2 = (GLfloat)srcRect.right / wSurf;
3812	GLfloat const y2 = (GLfloat)srcRect.bottom / hSurf;
3813
3814	//printf("blit to screen src %fx%f %u,%u %u,%u (%f,%f %f,%f) dest %dx%d %u,%u %u,%u\n",
3815	// wSurf, hSurf, srcRect.left, srcRect.top, srcRect.right, srcRect.bottom, x1, y1, x2, y2,
3816	// w, h, destRect.left, destRect.top, destRect.right, destRect.bottom);
3817
3818	Bool fSuccess = glXMakeCurrent(pState->display, p->glxpixmap, p->glxctx);
3819	if (fSuccess)
3820	{
3821	glClear(GL_COLOR_BUFFER_BIT);
3822
3823	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture); GLCHECK();
3824
3825	glBegin(GL_QUADS);
3826	/** @todo Y inversion. */
3827	glTexCoord2f(x1, y1); glVertex2i(0, h);
3828	glTexCoord2f(x1, y2); glVertex2i(0, 0);
3829	glTexCoord2f(x2, y2); glVertex2i(w, 0);
3830	glTexCoord2f(x2, y1); glVertex2i(w, h);
3831	glEnd(); GLCHECK();
3832
3833	glBindTexture(GL_TEXTURE_2D, 0); GLCHECK();
3834
3835	glFinish(); GLCHECK();
3836
3837	glXMakeCurrent(pState->display, None, NULL);
3838
3839	vmsvga3dDrvNotifyHwScreen(pThisCC, VBOX3D_NOTIFY_TYPE_HW_SCREEN_UPDATE_END,
3840	pScreen->idScreen, p->pixmap, &destRect, sizeof(destRect));
3841	}
3842
3843	XSetErrorHandler(oldHandler);
3844
3845	return VINF_SUCCESS;
3846	}
3847
3848	#else /* !RT_OS_LINUX */
3849
3850	int vmsvga3dBackDefineScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3851	{
3852	RT_NOREF(pThisCC, pScreen);
3853	return VERR_NOT_IMPLEMENTED;
3854	}
3855
3856	int vmsvga3dBackDestroyScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3857	{
3858	RT_NOREF(pThisCC, pScreen);
3859	return VERR_NOT_IMPLEMENTED;
3860	}
3861
3862	int vmsvga3dBackSurfaceBlitToScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen,
3863	SVGASignedRect destRect, SVGA3dSurfaceImageId srcImage,
3864	SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *paRects)
3865	{
3866	RT_NOREF(pThisCC, pScreen, destRect, srcImage, srcRect, cRects, paRects);
3867	return VERR_NOT_IMPLEMENTED;
3868	}
3869	#endif
3870
3871	/**
3872	* Create a new 3d context
3873	*
3874	* @returns VBox status code.
3875	* @param pThisCC The VGA/VMSVGA state for ring-3.
3876	* @param cid Context id
3877	*/
3878	int vmsvga3dContextDefine(PVGASTATECC pThisCC, uint32_t cid)
3879	{
3880	return vmsvga3dContextDefineOgl(pThisCC, cid, 0/fFlags/);
3881	}
3882
3883	/**
3884	* Destroys a 3d context.
3885	*
3886	* @returns VBox status code.
3887	* @param pThisCC The VGA/VMSVGA state for ring-3.
3888	* @param pContext The context to destroy.
3889	* @param cid Context id
3890	*/
3891	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3892	{
3893	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3894	AssertReturn(pState, VERR_NO_MEMORY);
3895	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3896	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3897	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3898
3899	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3900
3901	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
3902	{
3903	/* Delete resources which use the shared context. */
3904	vmsvga3dOnSharedContextDestroy(pState);
3905	}
3906
3907	/* Destroy all leftover pixel shaders. */
3908	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3909	{
3910	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3911	vmsvga3dShaderDestroy(pThisCC, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3912	}
3913	if (pContext->paPixelShader)
3914	RTMemFree(pContext->paPixelShader);
3915
3916	/* Destroy all leftover vertex shaders. */
3917	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3918	{
3919	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3920	vmsvga3dShaderDestroy(pThisCC, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3921	}
3922	if (pContext->paVertexShader)
3923	RTMemFree(pContext->paVertexShader);
3924
3925	if (pContext->state.paVertexShaderConst)
3926	RTMemFree(pContext->state.paVertexShaderConst);
3927	if (pContext->state.paPixelShaderConst)
3928	RTMemFree(pContext->state.paPixelShaderConst);
3929
3930	if (pContext->pShaderContext)
3931	{
3932	int rc = ShaderContextDestroy(pContext->pShaderContext);
3933	AssertRC(rc);
3934	}
3935
3936	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3937	{
3938	/* Unbind the object from the framebuffer target. */
3939	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3940	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3941	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3942	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3943
3944	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3945	{
3946	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3947	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3948	}
3949	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3950	{
3951	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3952	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3953	}
3954	}
3955
3956	vmsvga3dOcclusionQueryDelete(pState, pContext);
3957
3958	#ifdef RT_OS_WINDOWS
3959	wglMakeCurrent(pContext->hdc, NULL);
3960	wglDeleteContext(pContext->hglrc);
3961	ReleaseDC(pContext->hwnd, pContext->hdc);
3962
3963	/* Destroy the window we've created. */
3964	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3965	AssertRC(rc);
3966	#elif defined(RT_OS_DARWIN)
3967	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3968	#elif defined(RT_OS_LINUX)
3969	glXMakeCurrent(pState->display, None, NULL);
3970	glXDestroyContext(pState->display, pContext->glxContext);
3971	XDestroyWindow(pState->display, pContext->window);
3972	#endif
3973
3974	memset(pContext, 0, sizeof(*pContext));
3975	pContext->id = SVGA3D_INVALID_ID;
3976
3977	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3978	return VINF_SUCCESS;
3979	}
3980
3981	/**
3982	* Destroy an existing 3d context
3983	*
3984	* @returns VBox status code.
3985	* @param pThisCC The VGA/VMSVGA state for ring-3.
3986	* @param cid Context id
3987	*/
3988	int vmsvga3dContextDestroy(PVGASTATECC pThisCC, uint32_t cid)
3989	{
3990	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3991	AssertReturn(pState, VERR_WRONG_ORDER);
3992
3993	/*
3994	* Resolve the context and hand it to the common worker function.
3995	*/
3996	if ( cid < pState->cContexts
3997	&& pState->papContexts[cid]->id == cid)
3998	return vmsvga3dContextDestroyOgl(pThisCC, pState->papContexts[cid], cid);
3999
4000	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
4001	return VINF_SUCCESS;
4002	}
4003
4004	/**
4005	* Worker for vmsvga3dChangeMode that resizes a context.
4006	*
4007	* @param pState The VMSVGA3d state.
4008	* @param pContext The context.
4009	*/
4010	static void vmsvga3dChangeModeOneContext(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
4011	{
4012	RT_NOREF(pState, pContext);
4013	/* Do nothing. The window is not used for presenting. */
4014	}
4015
4016	/* Handle resize */
4017	int vmsvga3dChangeMode(PVGASTATECC pThisCC)
4018	{
4019	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4020	AssertReturn(pState, VERR_NO_MEMORY);
4021
4022	/* Resize the shared context too. */
4023	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
4024	vmsvga3dChangeModeOneContext(pState, &pState->SharedCtx);
4025
4026	/* Resize all active contexts. */
4027	for (uint32_t i = 0; i < pState->cContexts; i++)
4028	{
4029	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
4030	if (pContext->id != SVGA3D_INVALID_ID)
4031	vmsvga3dChangeModeOneContext(pState, pContext);
4032	}
4033
4034	return VINF_SUCCESS;
4035	}
4036
4037
4038	int vmsvga3dSetTransform(PVGASTATECC pThisCC, uint32_t cid, SVGA3dTransformType type, float matrix[16])
4039	{
4040	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4041	AssertReturn(pState, VERR_NO_MEMORY);
4042	bool fModelViewChanged = false;
4043
4044	Log(("vmsvga3dSetTransform cid=%u %s\n", cid, vmsvgaTransformToString(type)));
4045
4046	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
4047
4048	PVMSVGA3DCONTEXT pContext;
4049	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4050	AssertRCReturn(rc, rc);
4051
4052	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4053
4054	/* Save this matrix for vm state save/restore. */
4055	pContext->state.aTransformState[type].fValid = true;
4056	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
4057	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
4058
4059	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)));
4060	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)));
4061	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)));
4062	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)));
4063
4064	switch (type)
4065	{
4066	case SVGA3D_TRANSFORM_VIEW:
4067	/* View * World = Model View */
4068	glMatrixMode(GL_MODELVIEW);
4069	glLoadMatrixf(matrix);
4070	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
4071	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
4072	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4073	fModelViewChanged = true;
4074	break;
4075
4076	case SVGA3D_TRANSFORM_PROJECTION:
4077	{
4078	rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
4079	AssertRCReturn(rc, rc);
4080	break;
4081	}
4082
4083	case SVGA3D_TRANSFORM_TEXTURE0:
4084	glMatrixMode(GL_TEXTURE);
4085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4086	glLoadMatrixf(matrix);
4087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4088	break;
4089
4090	case SVGA3D_TRANSFORM_TEXTURE1:
4091	case SVGA3D_TRANSFORM_TEXTURE2:
4092	case SVGA3D_TRANSFORM_TEXTURE3:
4093	case SVGA3D_TRANSFORM_TEXTURE4:
4094	case SVGA3D_TRANSFORM_TEXTURE5:
4095	case SVGA3D_TRANSFORM_TEXTURE6:
4096	case SVGA3D_TRANSFORM_TEXTURE7:
4097	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
4098	return VERR_INVALID_PARAMETER;
4099
4100	case SVGA3D_TRANSFORM_WORLD:
4101	/* View * World = Model View */
4102	glMatrixMode(GL_MODELVIEW);
4103	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
4104	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
4105	else
4106	glLoadIdentity();
4107	glMultMatrixf(matrix);
4108	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4109	fModelViewChanged = true;
4110	break;
4111
4112	case SVGA3D_TRANSFORM_WORLD1:
4113	case SVGA3D_TRANSFORM_WORLD2:
4114	case SVGA3D_TRANSFORM_WORLD3:
4115	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
4116	return VERR_INVALID_PARAMETER;
4117
4118	default:
4119	Log(("vmsvga3dSetTransform: unknown type!!\n"));
4120	return VERR_INVALID_PARAMETER;
4121	}
4122
4123	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
4124	if (fModelViewChanged)
4125	{
4126	/* Reprogram the clip planes. */
4127	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
4128	{
4129	if (pContext->state.aClipPlane[j].fValid == true)
4130	vmsvga3dSetClipPlane(pThisCC, cid, j, pContext->state.aClipPlane[j].plane);
4131	}
4132
4133	/* Reprogram the light data. */
4134	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
4135	{
4136	if (pContext->state.aLightData[j].fValidData == true)
4137	vmsvga3dSetLightData(pThisCC, cid, j, &pContext->state.aLightData[j].data);
4138	}
4139	}
4140
4141	return VINF_SUCCESS;
4142	}
4143
4144	int vmsvga3dSetZRange(PVGASTATECC pThisCC, uint32_t cid, SVGA3dZRange zRange)
4145	{
4146	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4147	AssertReturn(pState, VERR_NO_MEMORY);
4148
4149	Log(("vmsvga3dSetZRange cid=%u min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
4150
4151	PVMSVGA3DCONTEXT pContext;
4152	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4153	AssertRCReturn(rc, rc);
4154
4155	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4156
4157	pContext->state.zRange = zRange;
4158	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
4159
4160	if (zRange.min < -1.0)
4161	zRange.min = -1.0;
4162	if (zRange.max > 1.0)
4163	zRange.max = 1.0;
4164
4165	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
4166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4167	return VINF_SUCCESS;
4168	}
4169
4170	/**
4171	* Convert SVGA blend op value to its OpenGL equivalent
4172	*/
4173	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
4174	{
4175	switch (blendOp)
4176	{
4177	case SVGA3D_BLENDOP_ZERO:
4178	return GL_ZERO;
4179	case SVGA3D_BLENDOP_ONE:
4180	return GL_ONE;
4181	case SVGA3D_BLENDOP_SRCCOLOR:
4182	return GL_SRC_COLOR;
4183	case SVGA3D_BLENDOP_INVSRCCOLOR:
4184	return GL_ONE_MINUS_SRC_COLOR;
4185	case SVGA3D_BLENDOP_SRCALPHA:
4186	return GL_SRC_ALPHA;
4187	case SVGA3D_BLENDOP_INVSRCALPHA:
4188	return GL_ONE_MINUS_SRC_ALPHA;
4189	case SVGA3D_BLENDOP_DESTALPHA:
4190	return GL_DST_ALPHA;
4191	case SVGA3D_BLENDOP_INVDESTALPHA:
4192	return GL_ONE_MINUS_DST_ALPHA;
4193	case SVGA3D_BLENDOP_DESTCOLOR:
4194	return GL_DST_COLOR;
4195	case SVGA3D_BLENDOP_INVDESTCOLOR:
4196	return GL_ONE_MINUS_DST_COLOR;
4197	case SVGA3D_BLENDOP_SRCALPHASAT:
4198	return GL_SRC_ALPHA_SATURATE;
4199	case SVGA3D_BLENDOP_BLENDFACTOR:
4200	return GL_CONSTANT_COLOR;
4201	case SVGA3D_BLENDOP_INVBLENDFACTOR:
4202	return GL_ONE_MINUS_CONSTANT_COLOR;
4203	default:
4204	AssertFailed();
4205	return GL_ONE;
4206	}
4207	}
4208
4209	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
4210	{
4211	switch (blendEq)
4212	{
4213	case SVGA3D_BLENDEQ_ADD:
4214	return GL_FUNC_ADD;
4215	case SVGA3D_BLENDEQ_SUBTRACT:
4216	return GL_FUNC_SUBTRACT;
4217	case SVGA3D_BLENDEQ_REVSUBTRACT:
4218	return GL_FUNC_REVERSE_SUBTRACT;
4219	case SVGA3D_BLENDEQ_MINIMUM:
4220	return GL_MIN;
4221	case SVGA3D_BLENDEQ_MAXIMUM:
4222	return GL_MAX;
4223	default:
4224	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
4225	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
4226	return GL_FUNC_ADD;
4227	}
4228	}
4229
4230	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
4231	{
4232	switch (cmpFunc)
4233	{
4234	case SVGA3D_CMP_NEVER:
4235	return GL_NEVER;
4236	case SVGA3D_CMP_LESS:
4237	return GL_LESS;
4238	case SVGA3D_CMP_EQUAL:
4239	return GL_EQUAL;
4240	case SVGA3D_CMP_LESSEQUAL:
4241	return GL_LEQUAL;
4242	case SVGA3D_CMP_GREATER:
4243	return GL_GREATER;
4244	case SVGA3D_CMP_NOTEQUAL:
4245	return GL_NOTEQUAL;
4246	case SVGA3D_CMP_GREATEREQUAL:
4247	return GL_GEQUAL;
4248	case SVGA3D_CMP_ALWAYS:
4249	return GL_ALWAYS;
4250	default:
4251	Assert(cmpFunc == SVGA3D_CMP_INVALID);
4252	return GL_LESS;
4253	}
4254	}
4255
4256	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
4257	{
4258	switch (stencilOp)
4259	{
4260	case SVGA3D_STENCILOP_KEEP:
4261	return GL_KEEP;
4262	case SVGA3D_STENCILOP_ZERO:
4263	return GL_ZERO;
4264	case SVGA3D_STENCILOP_REPLACE:
4265	return GL_REPLACE;
4266	case SVGA3D_STENCILOP_INCRSAT:
4267	return GL_INCR_WRAP;
4268	case SVGA3D_STENCILOP_DECRSAT:
4269	return GL_DECR_WRAP;
4270	case SVGA3D_STENCILOP_INVERT:
4271	return GL_INVERT;
4272	case SVGA3D_STENCILOP_INCR:
4273	return GL_INCR;
4274	case SVGA3D_STENCILOP_DECR:
4275	return GL_DECR;
4276	default:
4277	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
4278	return GL_KEEP;
4279	}
4280	}
4281
4282	int vmsvga3dSetRenderState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
4283	{
4284	uint32_t val = UINT32_MAX; /* Shut up MSC. */
4285	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4286	AssertReturn(pState, VERR_NO_MEMORY);
4287
4288	Log(("vmsvga3dSetRenderState cid=%u cRenderStates=%d\n", cid, cRenderStates));
4289
4290	PVMSVGA3DCONTEXT pContext;
4291	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4292	AssertRCReturn(rc, rc);
4293
4294	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4295
4296	for (unsigned i = 0; i < cRenderStates; i++)
4297	{
4298	GLenum enableCap = ~(GLenum)0;
4299	Log(("vmsvga3dSetRenderState: cid=%u state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
4300	/* Save the render state for vm state saving. */
4301	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
4302	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
4303
4304	switch (pRenderState[i].state)
4305	{
4306	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
4307	enableCap = GL_DEPTH_TEST;
4308	val = pRenderState[i].uintValue;
4309	break;
4310
4311	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
4312	glDepthMask(!!pRenderState[i].uintValue);
4313	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4314	break;
4315
4316	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
4317	enableCap = GL_ALPHA_TEST;
4318	val = pRenderState[i].uintValue;
4319	break;
4320
4321	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
4322	enableCap = GL_DITHER;
4323	val = pRenderState[i].uintValue;
4324	break;
4325
4326	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
4327	enableCap = GL_FOG;
4328	val = pRenderState[i].uintValue;
4329	break;
4330
4331	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
4332	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4333	break;
4334
4335	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
4336	enableCap = GL_LIGHTING;
4337	val = pRenderState[i].uintValue;
4338	break;
4339
4340	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
4341	/* not applicable */
4342	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4343	break;
4344
4345	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
4346	enableCap = GL_POINT_SPRITE_ARB;
4347	val = pRenderState[i].uintValue;
4348	break;
4349
4350	case SVGA3D_RS_POINTSIZE: /* float */
4351	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4352	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4353	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4354	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4355	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4356
4357	glPointSize(pRenderState[i].floatValue);
4358	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4359	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4360	break;
4361
4362	case SVGA3D_RS_POINTSIZEMIN: /* float */
4363	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4364	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4365	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4366	break;
4367
4368	case SVGA3D_RS_POINTSIZEMAX: /* float */
4369	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4370	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4371	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4372	break;
4373
4374	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4375	case SVGA3D_RS_POINTSCALE_A: /* float */
4376	case SVGA3D_RS_POINTSCALE_B: /* float */
4377	case SVGA3D_RS_POINTSCALE_C: /* float */
4378	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4379	break;
4380
4381	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4382	{
4383	GLfloat color[4]; /* red, green, blue, alpha */
4384
4385	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4386
4387	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4388	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4389	break;
4390	}
4391
4392	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4393	{
4394	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4395	for (uint32_t j = 0; j <= 5; j++)
4396	{
4397	if (pRenderState[i].uintValue & RT_BIT(j))
4398	glEnable(GL_CLIP_PLANE0 + j);
4399	else
4400	glDisable(GL_CLIP_PLANE0 + j);
4401	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4402	}
4403	break;
4404	}
4405
4406	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4407	{
4408	GLfloat color[4]; /* red, green, blue, alpha */
4409
4410	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4411
4412	glFogfv(GL_FOG_COLOR, color);
4413	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4414	break;
4415	}
4416
4417	case SVGA3D_RS_FOGSTART: /* float */
4418	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4419	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4420	break;
4421
4422	case SVGA3D_RS_FOGEND: /* float */
4423	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4424	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4425	break;
4426
4427	case SVGA3D_RS_FOGDENSITY: /* float */
4428	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4429	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4430	break;
4431
4432	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4433	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4435	break;
4436
4437	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4438	{
4439	SVGA3dFogMode mode;
4440	mode.uintValue = pRenderState[i].uintValue;
4441
4442	enableCap = GL_FOG_MODE;
4443	switch (mode.s.function)
4444	{
4445	case SVGA3D_FOGFUNC_EXP:
4446	val = GL_EXP;
4447	break;
4448	case SVGA3D_FOGFUNC_EXP2:
4449	val = GL_EXP2;
4450	break;
4451	case SVGA3D_FOGFUNC_LINEAR:
4452	val = GL_LINEAR;
4453	break;
4454	default:
4455	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4456	break;
4457	}
4458
4459	/** @todo how to switch between vertex and pixel fog modes??? */
4460	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4461	#if 0
4462	/* The fog type determines the render state. */
4463	switch (mode.s.type)
4464	{
4465	case SVGA3D_FOGTYPE_VERTEX:
4466	renderState = D3DRS_FOGVERTEXMODE;
4467	break;
4468	case SVGA3D_FOGTYPE_PIXEL:
4469	renderState = D3DRS_FOGTABLEMODE;
4470	break;
4471	default:
4472	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4473	break;
4474	}
4475	#endif
4476
4477	/* Set the fog base to depth or range. */
4478	switch (mode.s.base)
4479	{
4480	case SVGA3D_FOGBASE_DEPTHBASED:
4481	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4483	break;
4484	case SVGA3D_FOGBASE_RANGEBASED:
4485	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4486	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4487	break;
4488	default:
4489	/* ignore */
4490	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4491	break;
4492	}
4493	break;
4494	}
4495
4496	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4497	{
4498	SVGA3dFillMode mode;
4499
4500	mode.uintValue = pRenderState[i].uintValue;
4501
4502	switch (mode.s.mode)
4503	{
4504	case SVGA3D_FILLMODE_POINT:
4505	val = GL_POINT;
4506	break;
4507	case SVGA3D_FILLMODE_LINE:
4508	val = GL_LINE;
4509	break;
4510	case SVGA3D_FILLMODE_FILL:
4511	val = GL_FILL;
4512	break;
4513	default:
4514	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4515	break;
4516	}
4517	/* @note only front and back faces */
4518	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4519	glPolygonMode(GL_FRONT_AND_BACK, val);
4520	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4521	break;
4522	}
4523
4524	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4525	switch (pRenderState[i].uintValue)
4526	{
4527	case SVGA3D_SHADEMODE_FLAT:
4528	val = GL_FLAT;
4529	break;
4530
4531	case SVGA3D_SHADEMODE_SMOOTH:
4532	val = GL_SMOOTH;
4533	break;
4534
4535	default:
4536	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4537	break;
4538	}
4539
4540	glShadeModel(val);
4541	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4542	break;
4543
4544	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4545	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4546	/** @todo */
4547	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4548	/*
4549	renderState = D3DRS_LINEPATTERN;
4550	val = pRenderState[i].uintValue;
4551	*/
4552	break;
4553
4554	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4555	enableCap = GL_LINE_SMOOTH;
4556	val = pRenderState[i].uintValue;
4557	break;
4558
4559	case SVGA3D_RS_LINEWIDTH: /* float */
4560	glLineWidth(pRenderState[i].floatValue);
4561	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4562	break;
4563
4564	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4565	{
4566	/* Refresh the blending state based on the new enable setting.
4567	* This will take existing states and set them using either glBlend* or glBlend*Separate.
4568	*/
4569	static SVGA3dRenderStateName const saRefreshState[] =
4570	{
4571	SVGA3D_RS_SRCBLEND,
4572	SVGA3D_RS_BLENDEQUATION
4573	};
4574	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4575	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4576	{
4577	renderstate[j].state = saRefreshState[j];
4578	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4579	}
4580
4581	rc = vmsvga3dSetRenderState(pThisCC, cid, 2, renderstate);
4582	AssertRCReturn(rc, rc);
4583
4584	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4585	continue; /* Ignore if blend is enabled */
4586	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4587	} RT_FALL_THRU();
4588
4589	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4590	enableCap = GL_BLEND;
4591	val = pRenderState[i].uintValue;
4592	break;
4593
4594	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4595	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4596	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4597	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4598	{
4599	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4600	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4601
4602	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4603	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4604	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4605	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4606	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4607	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4608	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4609	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4610
4611	switch (pRenderState[i].state)
4612	{
4613	case SVGA3D_RS_SRCBLEND:
4614	srcRGB = blendop;
4615	break;
4616	case SVGA3D_RS_DSTBLEND:
4617	dstRGB = blendop;
4618	break;
4619	case SVGA3D_RS_SRCBLENDALPHA:
4620	srcAlpha = blendop;
4621	break;
4622	case SVGA3D_RS_DSTBLENDALPHA:
4623	dstAlpha = blendop;
4624	break;
4625	default:
4626	/* not possible; shut up gcc */
4627	AssertFailed();
4628	break;
4629	}
4630
4631	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4632	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4633	else
4634	glBlendFunc(srcRGB, dstRGB);
4635	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4636	break;
4637	}
4638
4639	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4640	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4641	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4642	{
4643	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4644	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4645	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4646	}
4647	else
4648	{
4649	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4650	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4651	#else
4652	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4653	#endif
4654	}
4655	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4656	break;
4657
4658	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4659	{
4660	GLfloat red, green, blue, alpha;
4661
4662	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4663
4664	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4665	glBlendColor(red, green, blue, alpha);
4666	#else
4667	pState->ext.glBlendColor(red, green, blue, alpha);
4668	#endif
4669	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4670	break;
4671	}
4672
4673	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4674	{
4675	GLenum mode = GL_BACK; /* default for OpenGL */
4676
4677	switch (pRenderState[i].uintValue)
4678	{
4679	case SVGA3D_FACE_NONE:
4680	break;
4681	case SVGA3D_FACE_FRONT:
4682	mode = GL_FRONT;
4683	break;
4684	case SVGA3D_FACE_BACK:
4685	mode = GL_BACK;
4686	break;
4687	case SVGA3D_FACE_FRONT_BACK:
4688	mode = GL_FRONT_AND_BACK;
4689	break;
4690	default:
4691	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4692	break;
4693	}
4694	enableCap = GL_CULL_FACE;
4695	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4696	{
4697	glCullFace(mode);
4698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4699	val = 1;
4700	}
4701	else
4702	val = 0;
4703	break;
4704	}
4705
4706	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4707	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4708	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4709	break;
4710
4711	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4712	{
4713	GLclampf ref;
4714
4715	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4717	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4718	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4719	break;
4720	}
4721
4722	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4723	{
4724	GLint func;
4725
4726	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4727	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4728	glAlphaFunc(func, pRenderState[i].floatValue);
4729	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4730	break;
4731	}
4732
4733	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4734	{
4735	/* Refresh the stencil state based on the new enable setting.
4736	* This will take existing states and set them using either glStencil or glStencil*Separate.
4737	*/
4738	static SVGA3dRenderStateName const saRefreshState[] =
4739	{
4740	SVGA3D_RS_STENCILFUNC,
4741	SVGA3D_RS_STENCILFAIL,
4742	SVGA3D_RS_CCWSTENCILFUNC,
4743	SVGA3D_RS_CCWSTENCILFAIL
4744	};
4745	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4746	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4747	{
4748	renderstate[j].state = saRefreshState[j];
4749	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4750	}
4751
4752	rc = vmsvga3dSetRenderState(pThisCC, cid, RT_ELEMENTS(renderstate), renderstate);
4753	AssertRCReturn(rc, rc);
4754
4755	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4756	continue; /* Ignore if stencil is enabled */
4757	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4758	} RT_FALL_THRU();
4759
4760	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4761	enableCap = GL_STENCIL_TEST;
4762	val = pRenderState[i].uintValue;
4763	break;
4764
4765	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4766	case SVGA3D_RS_STENCILREF: /* uint32_t */
4767	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4768	{
4769	GLint func, ref;
4770	GLuint mask;
4771
4772	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4773	glGetIntegerv(GL_STENCIL_FUNC, &func);
4774	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4775	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4776	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4777	glGetIntegerv(GL_STENCIL_REF, &ref);
4778	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4779
4780	/* Update the changed value. */
4781	switch (pRenderState[i].state)
4782	{
4783	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4784	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4785	break;
4786
4787	case SVGA3D_RS_STENCILREF: /* uint32_t */
4788	ref = pRenderState[i].uintValue;
4789	break;
4790
4791	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4792	mask = pRenderState[i].uintValue;
4793	break;
4794
4795	default:
4796	/* not possible; shut up gcc */
4797	AssertFailed();
4798	break;
4799	}
4800
4801	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4802	{
4803	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4804	}
4805	else
4806	{
4807	glStencilFunc(func, ref, mask);
4808	}
4809	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4810	break;
4811	}
4812
4813	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4814	glStencilMask(pRenderState[i].uintValue);
4815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4816	break;
4817
4818	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4819	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4820	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4821	{
4822	GLint sfail, dpfail, dppass;
4823	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4824
4825	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4827	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4829	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4830	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4831
4832	switch (pRenderState[i].state)
4833	{
4834	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4835	sfail = stencilop;
4836	break;
4837	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4838	dpfail = stencilop;
4839	break;
4840	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4841	dppass = stencilop;
4842	break;
4843	default:
4844	/* not possible; shut up gcc */
4845	AssertFailed();
4846	break;
4847	}
4848	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4849	{
4850	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4851	}
4852	else
4853	{
4854	glStencilOp(sfail, dpfail, dppass);
4855	}
4856	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4857	break;
4858	}
4859
4860	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4861	{
4862	GLint ref;
4863	GLuint mask;
4864	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4865
4866	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4867	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4868	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4869	glGetIntegerv(GL_STENCIL_REF, &ref);
4870	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4871
4872	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4873	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4874	break;
4875	}
4876
4877	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4878	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4879	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4880	{
4881	GLint sfail, dpfail, dppass;
4882	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4883
4884	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4885	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4886	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4887	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4888	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4889	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4890
4891	switch (pRenderState[i].state)
4892	{
4893	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4894	sfail = stencilop;
4895	break;
4896	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4897	dpfail = stencilop;
4898	break;
4899	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4900	dppass = stencilop;
4901	break;
4902	default:
4903	/* not possible; shut up gcc */
4904	AssertFailed();
4905	break;
4906	}
4907	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4908	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4909	break;
4910	}
4911
4912	case SVGA3D_RS_ZBIAS: /* float */
4913	/** @todo unknown meaning; depth bias is not identical
4914	renderState = D3DRS_DEPTHBIAS;
4915	val = pRenderState[i].uintValue;
4916	*/
4917	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4918	break;
4919
4920	case SVGA3D_RS_DEPTHBIAS: /* float */
4921	{
4922	GLfloat factor;
4923
4924	/** @todo not sure if the d3d & ogl definitions are identical. */
4925
4926	/* Do not change the factor part. */
4927	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4928	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4929
4930	glPolygonOffset(factor, pRenderState[i].floatValue);
4931	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4932	break;
4933	}
4934
4935	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4936	{
4937	GLfloat units;
4938
4939	/** @todo not sure if the d3d & ogl definitions are identical. */
4940
4941	/* Do not change the factor part. */
4942	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4943	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4944
4945	glPolygonOffset(pRenderState[i].floatValue, units);
4946	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4947	break;
4948	}
4949
4950	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4951	{
4952	GLboolean red, green, blue, alpha;
4953	SVGA3dColorMask mask;
4954
4955	mask.uintValue = pRenderState[i].uintValue;
4956
4957	red = mask.s.red;
4958	green = mask.s.green;
4959	blue = mask.s.blue;
4960	alpha = mask.s.alpha;
4961
4962	glColorMask(red, green, blue, alpha);
4963	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4964	break;
4965	}
4966
4967	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4968	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4969	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4970	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4971	break;
4972
4973	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4974	enableCap = GL_SCISSOR_TEST;
4975	val = pRenderState[i].uintValue;
4976	break;
4977
4978	#if 0
4979	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4980	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4981	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4982	val = pRenderState[i].uintValue;
4983	break;
4984
4985	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4986	renderState = D3DRS_SPECULARMATERIALSOURCE;
4987	val = pRenderState[i].uintValue;
4988	break;
4989
4990	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4991	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4992	val = pRenderState[i].uintValue;
4993	break;
4994
4995	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4996	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4997	val = pRenderState[i].uintValue;
4998	break;
4999	#endif
5000
5001	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
5002	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
5003	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
5004	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
5005	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
5006	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
5007	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
5008	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
5009	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
5010	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
5011	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
5012	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
5013	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
5014	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
5015	break;
5016
5017	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
5018	case SVGA3D_RS_TWEENFACTOR: /* float */
5019	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
5020	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
5021	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
5022	break;
5023
5024	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
5025	enableCap = GL_MULTISAMPLE;
5026	val = pRenderState[i].uintValue;
5027	break;
5028
5029	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
5030	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
5031	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
5032	break;
5033
5034	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
5035	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
5036	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
5037	/*
5038	renderState = D3DRS_COORDINATETYPE;
5039	val = pRenderState[i].uintValue;
5040	*/
5041	break;
5042
5043	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
5044	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
5045	/* Invert the selected mode because of y-inversion (?) */
5046	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
5047	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5048	break;
5049
5050	case SVGA3D_RS_OUTPUTGAMMA: /* float */
5051	//AssertFailed();
5052	/*
5053	D3DRS_SRGBWRITEENABLE ??
5054	renderState = D3DRS_OUTPUTGAMMA;
5055	val = pRenderState[i].uintValue;
5056	*/
5057	break;
5058
5059	#if 0
5060
5061	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
5062	//AssertFailed();
5063	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
5064	val = pRenderState[i].uintValue;
5065	break;
5066
5067	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
5068	renderState = D3DRS_TEXTUREFACTOR;
5069	val = pRenderState[i].uintValue;
5070	break;
5071
5072	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
5073	renderState = D3DRS_LOCALVIEWER;
5074	val = pRenderState[i].uintValue;
5075	break;
5076
5077	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
5078	AssertFailed();
5079	/*
5080	renderState = D3DRS_ZVISIBLE;
5081	val = pRenderState[i].uintValue;
5082	*/
5083	break;
5084
5085	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
5086	renderState = D3DRS_CLIPPING;
5087	val = pRenderState[i].uintValue;
5088	break;
5089
5090	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
5091	glTexParameter GL_TEXTURE_WRAP_S
5092	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
5093	renderState = D3DRS_WRAP0;
5094	val = pRenderState[i].uintValue;
5095	break;
5096
5097	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
5098	glTexParameter GL_TEXTURE_WRAP_T
5099	renderState = D3DRS_WRAP1;
5100	val = pRenderState[i].uintValue;
5101	break;
5102
5103	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
5104	glTexParameter GL_TEXTURE_WRAP_R
5105	renderState = D3DRS_WRAP2;
5106	val = pRenderState[i].uintValue;
5107	break;
5108
5109
5110	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5111	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
5112	val = pRenderState[i].uintValue;
5113	break;
5114
5115
5116	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5117	renderState = D3DRS_BLENDOPALPHA;
5118	val = pRenderState[i].uintValue;
5119	break;
5120
5121	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
5122	AssertFailed();
5123	/*
5124	renderState = D3DRS_TRANSPARENCYANTIALIAS;
5125	val = pRenderState[i].uintValue;
5126	*/
5127	break;
5128
5129	#endif
5130	default:
5131	AssertFailed();
5132	break;
5133	}
5134
5135	if (enableCap != ~(GLenum)0)
5136	{
5137	if (val)
5138	glEnable(enableCap);
5139	else
5140	glDisable(enableCap);
5141	}
5142	}
5143
5144	return VINF_SUCCESS;
5145	}
5146
5147	int vmsvga3dSetRenderTarget(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
5148	{
5149	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5150
5151	AssertReturn(pState, VERR_NO_MEMORY);
5152	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
5153
5154	LogFunc(("cid=%u type=%x sid=%u\n", cid, type, target.sid));
5155
5156	PVMSVGA3DCONTEXT pContext;
5157	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5158	AssertRCReturn(rc, rc);
5159
5160	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5161
5162	/* Save for vm state save/restore. */
5163	pContext->state.aRenderTargets[type] = target.sid;
5164
5165	if (target.sid == SVGA3D_INVALID_ID)
5166	{
5167	/* Disable render target. */
5168	switch (type)
5169	{
5170	case SVGA3D_RT_DEPTH:
5171	case SVGA3D_RT_STENCIL:
5172	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
5173	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5174	break;
5175
5176	case SVGA3D_RT_COLOR0:
5177	case SVGA3D_RT_COLOR1:
5178	case SVGA3D_RT_COLOR2:
5179	case SVGA3D_RT_COLOR3:
5180	case SVGA3D_RT_COLOR4:
5181	case SVGA3D_RT_COLOR5:
5182	case SVGA3D_RT_COLOR6:
5183	case SVGA3D_RT_COLOR7:
5184	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
5185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5186	break;
5187
5188	default:
5189	AssertFailedReturn(VERR_INVALID_PARAMETER);
5190	}
5191	return VINF_SUCCESS;
5192	}
5193
5194	PVMSVGA3DSURFACE pRenderTarget;
5195	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
5196	AssertRCReturn(rc, rc);
5197
5198	switch (type)
5199	{
5200	case SVGA3D_RT_DEPTH:
5201	case SVGA3D_RT_STENCIL:
5202	#if 1
5203	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5204	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5205	{
5206	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
5207	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
5208	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
5209	AssertRCReturn(rc, rc);
5210	}
5211
5212	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5213	Assert(!pRenderTarget->fDirty);
5214
5215	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5216
5217	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
5218	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5219	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
5220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5221	#else
5222	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
5223	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5224	{
5225	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
5226	pContext = &pState->SharedCtx;
5227	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5228
5229	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
5230	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5231	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
5232
5233	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5234	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5235
5236	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
5237	pRenderTarget->internalFormatGL,
5238	pRenderTarget->paMipmapLevels[0].mipmapSize.width,
5239	pRenderTarget->paMipmapLevels[0].mipmapSize.height);
5240	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5241
5242	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
5243	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5244
5245	pContext = pState->papContexts[cid];
5246	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5247	pRenderTarget->idWeakContextAssociation = cid;
5248	}
5249
5250	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5251	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5252	Assert(!pRenderTarget->fDirty);
5253	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5254
5255	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5256
5257	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
5258	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5259	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5260	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5261	#endif
5262	break;
5263
5264	case SVGA3D_RT_COLOR0:
5265	case SVGA3D_RT_COLOR1:
5266	case SVGA3D_RT_COLOR2:
5267	case SVGA3D_RT_COLOR3:
5268	case SVGA3D_RT_COLOR4:
5269	case SVGA3D_RT_COLOR5:
5270	case SVGA3D_RT_COLOR6:
5271	case SVGA3D_RT_COLOR7:
5272	{
5273	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5274	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5275	{
5276	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));
5277	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
5278	AssertRCReturn(rc, rc);
5279	}
5280
5281	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5282	Assert(!pRenderTarget->fDirty);
5283
5284	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
5285
5286	GLenum textarget;
5287	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
5288	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
5289	else
5290	textarget = GL_TEXTURE_2D;
5291	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
5292	textarget, pRenderTarget->oglId.texture, target.mipmap);
5293	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5294
5295	#ifdef DEBUG
5296	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
5297	if (status != GL_FRAMEBUFFER_COMPLETE)
5298	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
5299	#endif
5300	/** @todo use glDrawBuffers too? */
5301	break;
5302	}
5303
5304	default:
5305	AssertFailedReturn(VERR_INVALID_PARAMETER);
5306	}
5307
5308	return VINF_SUCCESS;
5309	}
5310
5311	#if 0
5312	/**
5313	* Convert SVGA texture combiner value to its D3D equivalent
5314	*/
5315	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
5316	{
5317	switch (value)
5318	{
5319	case SVGA3D_TC_DISABLE:
5320	return D3DTOP_DISABLE;
5321	case SVGA3D_TC_SELECTARG1:
5322	return D3DTOP_SELECTARG1;
5323	case SVGA3D_TC_SELECTARG2:
5324	return D3DTOP_SELECTARG2;
5325	case SVGA3D_TC_MODULATE:
5326	return D3DTOP_MODULATE;
5327	case SVGA3D_TC_ADD:
5328	return D3DTOP_ADD;
5329	case SVGA3D_TC_ADDSIGNED:
5330	return D3DTOP_ADDSIGNED;
5331	case SVGA3D_TC_SUBTRACT:
5332	return D3DTOP_SUBTRACT;
5333	case SVGA3D_TC_BLENDTEXTUREALPHA:
5334	return D3DTOP_BLENDTEXTUREALPHA;
5335	case SVGA3D_TC_BLENDDIFFUSEALPHA:
5336	return D3DTOP_BLENDDIFFUSEALPHA;
5337	case SVGA3D_TC_BLENDCURRENTALPHA:
5338	return D3DTOP_BLENDCURRENTALPHA;
5339	case SVGA3D_TC_BLENDFACTORALPHA:
5340	return D3DTOP_BLENDFACTORALPHA;
5341	case SVGA3D_TC_MODULATE2X:
5342	return D3DTOP_MODULATE2X;
5343	case SVGA3D_TC_MODULATE4X:
5344	return D3DTOP_MODULATE4X;
5345	case SVGA3D_TC_DSDT:
5346	AssertFailed(); /** @todo ??? */
5347	return D3DTOP_DISABLE;
5348	case SVGA3D_TC_DOTPRODUCT3:
5349	return D3DTOP_DOTPRODUCT3;
5350	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
5351	return D3DTOP_BLENDTEXTUREALPHAPM;
5352	case SVGA3D_TC_ADDSIGNED2X:
5353	return D3DTOP_ADDSIGNED2X;
5354	case SVGA3D_TC_ADDSMOOTH:
5355	return D3DTOP_ADDSMOOTH;
5356	case SVGA3D_TC_PREMODULATE:
5357	return D3DTOP_PREMODULATE;
5358	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
5359	return D3DTOP_MODULATEALPHA_ADDCOLOR;
5360	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
5361	return D3DTOP_MODULATECOLOR_ADDALPHA;
5362	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
5363	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
5364	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
5365	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
5366	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
5367	return D3DTOP_BUMPENVMAPLUMINANCE;
5368	case SVGA3D_TC_MULTIPLYADD:
5369	return D3DTOP_MULTIPLYADD;
5370	case SVGA3D_TC_LERP:
5371	return D3DTOP_LERP;
5372	default:
5373	AssertFailed();
5374	return D3DTOP_DISABLE;
5375	}
5376	}
5377
5378	/**
5379	* Convert SVGA texture arg data value to its D3D equivalent
5380	*/
5381	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
5382	{
5383	switch (value)
5384	{
5385	case SVGA3D_TA_CONSTANT:
5386	return D3DTA_CONSTANT;
5387	case SVGA3D_TA_PREVIOUS:
5388	return D3DTA_CURRENT; /* current = previous */
5389	case SVGA3D_TA_DIFFUSE:
5390	return D3DTA_DIFFUSE;
5391	case SVGA3D_TA_TEXTURE:
5392	return D3DTA_TEXTURE;
5393	case SVGA3D_TA_SPECULAR:
5394	return D3DTA_SPECULAR;
5395	default:
5396	AssertFailed();
5397	return 0;
5398	}
5399	}
5400
5401	/**
5402	* Convert SVGA texture transform flag value to its D3D equivalent
5403	*/
5404	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5405	{
5406	switch (value)
5407	{
5408	case SVGA3D_TEX_TRANSFORM_OFF:
5409	return D3DTTFF_DISABLE;
5410	case SVGA3D_TEX_TRANSFORM_S:
5411	return D3DTTFF_COUNT1; /** @todo correct? */
5412	case SVGA3D_TEX_TRANSFORM_T:
5413	return D3DTTFF_COUNT2; /** @todo correct? */
5414	case SVGA3D_TEX_TRANSFORM_R:
5415	return D3DTTFF_COUNT3; /** @todo correct? */
5416	case SVGA3D_TEX_TRANSFORM_Q:
5417	return D3DTTFF_COUNT4; /** @todo correct? */
5418	case SVGA3D_TEX_PROJECTED:
5419	return D3DTTFF_PROJECTED;
5420	default:
5421	AssertFailed();
5422	return 0;
5423	}
5424	}
5425	#endif
5426
5427	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5428	{
5429	switch (value)
5430	{
5431	case SVGA3D_TEX_ADDRESS_WRAP:
5432	return GL_REPEAT;
5433	case SVGA3D_TEX_ADDRESS_MIRROR:
5434	return GL_MIRRORED_REPEAT;
5435	case SVGA3D_TEX_ADDRESS_CLAMP:
5436	return GL_CLAMP_TO_EDGE;
5437	case SVGA3D_TEX_ADDRESS_BORDER:
5438	return GL_CLAMP_TO_BORDER;
5439	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5440	AssertFailed();
5441	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5442
5443	case SVGA3D_TEX_ADDRESS_EDGE:
5444	case SVGA3D_TEX_ADDRESS_INVALID:
5445	default:
5446	AssertFailed();
5447	return GL_REPEAT; /* default */
5448	}
5449	}
5450
5451	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5452	{
5453	switch (value)
5454	{
5455	case SVGA3D_TEX_FILTER_NONE:
5456	case SVGA3D_TEX_FILTER_LINEAR:
5457	case SVGA3D_TEX_FILTER_ANISOTROPIC: /* Anisotropic filtering is controlled by SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL */
5458	return GL_LINEAR;
5459	case SVGA3D_TEX_FILTER_NEAREST:
5460	return GL_NEAREST;
5461	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5462	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5463	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5464	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5465	default:
5466	AssertFailed();
5467	return GL_LINEAR; /* default */
5468	}
5469	}
5470
5471	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5472	{
5473	/* flip the red and blue bytes */
5474	uint8_t blue = value & 0xff;
5475	uint8_t red = (value >> 16) & 0xff;
5476	return (value & 0xff00ff00) \| red \| (blue << 16);
5477	}
5478
5479	int vmsvga3dSetTextureState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5480	{
5481	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5482	GLenum currentStage = ~(GLenum)0;
5483	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5484	AssertReturn(pState, VERR_NO_MEMORY);
5485
5486	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5487
5488	PVMSVGA3DCONTEXT pContext;
5489	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5490	AssertRCReturn(rc, rc);
5491
5492	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5493
5494	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
5495	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
5496
5497	for (uint32_t i = 0; i < cTextureStates; ++i)
5498	{
5499	GLenum textureType = ~(GLenum)0;
5500	#if 0
5501	GLenum samplerType = ~(GLenum)0;
5502	#endif
5503
5504	LogFunc(("cid=%u stage=%d type=%s (%x) val=%x\n",
5505	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5506
5507	/* Record the texture state for vm state saving. */
5508	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5509	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5510	{
5511	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5512	}
5513
5514	/* Activate the right texture unit for subsequent texture state changes. */
5515	if (pTextureState[i].stage != currentStage \|\| i == 0)
5516	{
5517	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5518	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5519	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5520	{
5521	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5522	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5523	currentStage = pTextureState[i].stage;
5524	}
5525	else
5526	{
5527	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5528	continue;
5529	}
5530
5531	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
5532	{
5533	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
5534	AssertRCReturn(rc, rc);
5535	}
5536	else
5537	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
5538	}
5539
5540	switch (pTextureState[i].name)
5541	{
5542	case SVGA3D_TS_BUMPENVMAT00: /* float */
5543	case SVGA3D_TS_BUMPENVMAT01: /* float */
5544	case SVGA3D_TS_BUMPENVMAT10: /* float */
5545	case SVGA3D_TS_BUMPENVMAT11: /* float */
5546	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5547	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5548	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5549	break;
5550
5551	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5552	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5553	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5554	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5555	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5556	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5557	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5558	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5559	/** @todo not used by MesaGL */
5560	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5561	break;
5562	#if 0
5563
5564	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5565	textureType = D3DTSS_TEXCOORDINDEX;
5566	val = pTextureState[i].value;
5567	break;
5568
5569	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5570	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5571	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5572	break;
5573	#endif
5574
5575	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5576	{
5577	uint32_t const sid = pTextureState[i].value;
5578
5579	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u replacing sid=%u\n",
5580	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
5581
5582	/* Only if texture actually changed. */ /// @todo needs testing.
5583	if (pContext->aSidActiveTextures[currentStage] != sid)
5584	{
5585	if (pCurrentTextureSurface)
5586	{
5587	/* Unselect the currently associated texture. */
5588	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5589	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5590
5591	if (currentStage < 8)
5592	{
5593	/* Necessary for the fixed pipeline. */
5594	glDisable(pCurrentTextureSurface->targetGL);
5595	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5596	}
5597
5598	pCurrentTextureSurface = NULL;
5599	}
5600
5601	if (sid == SVGA3D_INVALID_ID)
5602	{
5603	Assert(pCurrentTextureSurface == NULL);
5604	}
5605	else
5606	{
5607	PVMSVGA3DSURFACE pSurface;
5608	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5609	AssertRCReturn(rc, rc);
5610
5611	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u (%d,%d) replacing sid=%u\n",
5612	currentStage, sid, pSurface->paMipmapLevels[0].mipmapSize.width,
5613	pSurface->paMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5614
5615	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5616	{
5617	Log(("CreateTexture (%d,%d) levels=%d\n",
5618	pSurface->paMipmapLevels[0].mipmapSize.width, pSurface->paMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5619	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5620	AssertRCReturn(rc, rc);
5621	}
5622
5623	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5624	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5625
5626	if (currentStage < 8)
5627	{
5628	/* Necessary for the fixed pipeline. */
5629	glEnable(pSurface->targetGL);
5630	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5631	}
5632
5633	/* Remember the currently active texture. */
5634	pCurrentTextureSurface = pSurface;
5635
5636	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5637	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5638	{
5639	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5640	{
5641	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5642
5643	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5644	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5645	vmsvga3dSetTextureState(pThisCC, pContext->id, 1, pTextureStateIter);
5646	}
5647	}
5648	}
5649
5650	pContext->aSidActiveTextures[currentStage] = sid;
5651	}
5652
5653	/* Finished; continue with the next one. */
5654	continue;
5655	}
5656
5657	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5658	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5659	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5660	break;
5661
5662	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5663	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5664	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5665	break;
5666
5667	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5668	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5669	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5670	break;
5671
5672	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5673	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5674	{
5675	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5676	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5677
5678	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5679	textureType = GL_TEXTURE_MIN_FILTER;
5680	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5681	{
5682	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5683	{
5684	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5685	val = GL_NEAREST_MIPMAP_LINEAR;
5686	else
5687	val = GL_NEAREST_MIPMAP_NEAREST;
5688	}
5689	else
5690	{
5691	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5692	val = GL_LINEAR_MIPMAP_LINEAR;
5693	else
5694	val = GL_LINEAR_MIPMAP_NEAREST;
5695	}
5696	}
5697	else
5698	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5699	break;
5700	}
5701
5702	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5703	textureType = GL_TEXTURE_MAG_FILTER;
5704	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5705	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5706	break;
5707
5708	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5709	{
5710	GLfloat color[4]; /* red, green, blue, alpha */
5711	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5712
5713	GLenum targetGL;
5714	if (pCurrentTextureSurface)
5715	targetGL = pCurrentTextureSurface->targetGL;
5716	else
5717	{
5718	/* No texture bound, assume 2D. */
5719	targetGL = GL_TEXTURE_2D;
5720	}
5721
5722	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5723	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5724	break;
5725	}
5726
5727	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5728	{
5729	GLenum targetGL;
5730	if (pCurrentTextureSurface)
5731	targetGL = pCurrentTextureSurface->targetGL;
5732	else
5733	{
5734	/* No texture bound, assume 2D. */
5735	targetGL = GL_TEXTURE_2D;
5736	}
5737
5738	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5739	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5740	break;
5741	}
5742
5743	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5744	textureType = GL_TEXTURE_BASE_LEVEL;
5745	val = pTextureState[i].value;
5746	break;
5747
5748	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5749	if (pState->caps.fTextureFilterAnisotropicSupported)
5750	{
5751	textureType = GL_TEXTURE_MAX_ANISOTROPY_EXT;
5752	val = RT_MIN((GLint)pTextureState[i].value, pState->caps.maxTextureAnisotropy);
5753	} /* otherwise ignore. */
5754	break;
5755
5756	#if 0
5757	case SVGA3D_TS_GAMMA: /* float */
5758	samplerType = D3DSAMP_SRGBTEXTURE;
5759	/* Boolean in D3D */
5760	if (pTextureState[i].floatValue == 1.0f)
5761	val = FALSE;
5762	else
5763	val = TRUE;
5764	break;
5765	#endif
5766	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5767	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5768	AssertFailed();
5769	break;
5770
5771	default:
5772	//AssertFailed();
5773	break;
5774	}
5775
5776	if (textureType != ~(GLenum)0)
5777	{
5778	GLenum targetGL;
5779	if (pCurrentTextureSurface)
5780	targetGL = pCurrentTextureSurface->targetGL;
5781	else
5782	{
5783	/* No texture bound, assume 2D. */
5784	targetGL = GL_TEXTURE_2D;
5785	}
5786
5787	switch (pTextureState[i].name)
5788	{
5789	case SVGA3D_TS_MINFILTER:
5790	case SVGA3D_TS_MAGFILTER:
5791	{
5792	if (pState->caps.fTextureFilterAnisotropicSupported)
5793	{
5794	uint32_t const anisotropyLevel = (SVGA3dTextureFilter)pTextureState[i].value == SVGA3D_TEX_FILTER_ANISOTROPIC
5795	? RT_MAX(1, pContext->state.aTextureStates[currentStage][SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL].value)
5796	: 1;
5797	glTexParameteri(targetGL, GL_TEXTURE_MAX_ANISOTROPY_EXT, RT_MIN((GLint)anisotropyLevel, pState->caps.maxTextureAnisotropy));
5798	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5799	}
5800	} break;
5801
5802	default: break;
5803	}
5804
5805	glTexParameteri(targetGL, textureType, val);
5806	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5807	}
5808	}
5809
5810	return VINF_SUCCESS;
5811	}
5812
5813	int vmsvga3dSetMaterial(PVGASTATECC pThisCC, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5814	{
5815	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5816	AssertReturn(pState, VERR_NO_MEMORY);
5817
5818	LogFunc(("cid=%u face %d\n", cid, face));
5819
5820	PVMSVGA3DCONTEXT pContext;
5821	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5822	AssertRCReturn(rc, rc);
5823
5824	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5825
5826	GLenum oglFace;
5827	switch (face)
5828	{
5829	case SVGA3D_FACE_NONE:
5830	case SVGA3D_FACE_FRONT:
5831	oglFace = GL_FRONT;
5832	break;
5833
5834	case SVGA3D_FACE_BACK:
5835	oglFace = GL_BACK;
5836	break;
5837
5838	case SVGA3D_FACE_FRONT_BACK:
5839	oglFace = GL_FRONT_AND_BACK;
5840	break;
5841
5842	default:
5843	AssertFailedReturn(VERR_INVALID_PARAMETER);
5844	}
5845
5846	/* Save for vm state save/restore. */
5847	pContext->state.aMaterial[face].fValid = true;
5848	pContext->state.aMaterial[face].material = *pMaterial;
5849	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5850
5851	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5852	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5853	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5854	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5855	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5856	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5857
5858	return VINF_SUCCESS;
5859	}
5860
5861	/** @todo Move into separate library as we are using logic from Wine here. */
5862	int vmsvga3dSetLightData(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5863	{
5864	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5865	AssertReturn(pState, VERR_NO_MEMORY);
5866
5867	LogFunc(("vmsvga3dSetLightData cid=%u index=%d type=%d\n", cid, index, pData->type));
5868	ASSERT_GUEST_RETURN(index < SVGA3D_MAX_LIGHTS, VERR_INVALID_PARAMETER);
5869
5870	PVMSVGA3DCONTEXT pContext;
5871	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5872	AssertRCReturn(rc, rc);
5873
5874	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5875
5876	/* Store for vm state save/restore */
5877	pContext->state.aLightData[index].fValidData = true;
5878	pContext->state.aLightData[index].data = *pData;
5879
5880	if ( pData->attenuation0 < 0.0f
5881	\|\| pData->attenuation1 < 0.0f
5882	\|\| pData->attenuation2 < 0.0f)
5883	{
5884	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5885	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5886	}
5887
5888	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5889	glMatrixMode(GL_MODELVIEW);
5890	glPushMatrix();
5891	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5892
5893	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5894	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5895	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5896
5897	float QuadAttenuation;
5898	if (pData->range * pData->range >= FLT_MIN)
5899	QuadAttenuation = 1.4f / (pData->range * pData->range);
5900	else
5901	QuadAttenuation = 0.0f;
5902
5903	switch (pData->type)
5904	{
5905	case SVGA3D_LIGHTTYPE_POINT:
5906	{
5907	GLfloat position[4];
5908
5909	position[0] = pData->position[0];
5910	position[1] = pData->position[1];
5911	position[2] = pData->position[2];
5912	position[3] = 1.0f;
5913
5914	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5915	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5916
5917	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5918	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5919
5920	/* Attenuation - Are these right? guessing... */
5921	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5922	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5923
5924	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5925	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5926
5927	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5928	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5929
5930	/** @todo range */
5931	break;
5932	}
5933
5934	case SVGA3D_LIGHTTYPE_SPOT1:
5935	{
5936	GLfloat exponent;
5937	GLfloat position[4];
5938	const GLfloat pi = 4.0f * atanf(1.0f);
5939
5940	position[0] = pData->position[0];
5941	position[1] = pData->position[1];
5942	position[2] = pData->position[2];
5943	position[3] = 1.0f;
5944
5945	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5946	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5947
5948	position[0] = pData->direction[0];
5949	position[1] = pData->direction[1];
5950	position[2] = pData->direction[2];
5951	position[3] = 1.0f;
5952
5953	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5954	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5955
5956	/*
5957	* opengl-ish and d3d-ish spot lights use too different models for the
5958	* light "intensity" as a function of the angle towards the main light direction,
5959	* so we only can approximate very roughly.
5960	* however spot lights are rather rarely used in games (if ever used at all).
5961	* furthermore if still used, probably nobody pays attention to such details.
5962	*/
5963	if (pData->falloff == 0)
5964	{
5965	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5966	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5967	* will always be 1.0 for both of them, and we don't have to care for the
5968	* rest of the rather complex calculation
5969	*/
5970	exponent = 0.0f;
5971	}
5972	else
5973	{
5974	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5975	if (rho < 0.0001f)
5976	rho = 0.0001f;
5977	exponent = -0.3f/log(cos(rho/2));
5978	}
5979	if (exponent > 128.0f)
5980	exponent = 128.0f;
5981
5982	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5983	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5984
5985	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5986	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5987
5988	/* Attenuation - Are these right? guessing... */
5989	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5990	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5991
5992	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5993	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5994
5995	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5996	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5997
5998	/** @todo range */
5999	break;
6000	}
6001
6002	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
6003	{
6004	GLfloat position[4];
6005
6006	position[0] = -pData->direction[0];
6007	position[1] = -pData->direction[1];
6008	position[2] = -pData->direction[2];
6009	position[3] = 0.0f;
6010
6011	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
6012	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6013
6014	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6015	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6016
6017	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
6018	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6019	break;
6020	}
6021
6022	case SVGA3D_LIGHTTYPE_SPOT2:
6023	default:
6024	Log(("Unsupported light type!!\n"));
6025	rc = VERR_INVALID_PARAMETER;
6026	break;
6027	}
6028
6029	/* Restore the modelview matrix */
6030	glPopMatrix();
6031
6032	return rc;
6033	}
6034
6035	int vmsvga3dSetLightEnabled(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, uint32_t enabled)
6036	{
6037	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6038	AssertReturn(pState, VERR_NO_MEMORY);
6039
6040	LogFunc(("cid=%u %d -> %d\n", cid, index, enabled));
6041
6042	PVMSVGA3DCONTEXT pContext;
6043	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6044	AssertRCReturn(rc, rc);
6045
6046	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6047
6048	/* Store for vm state save/restore */
6049	if (index < SVGA3D_MAX_LIGHTS)
6050	pContext->state.aLightData[index].fEnabled = !!enabled;
6051	else
6052	AssertFailed();
6053
6054	if (enabled)
6055	{
6056	if (index < SVGA3D_MAX_LIGHTS)
6057	{
6058	/* Load the default settings if none have been set yet. */
6059	if (!pContext->state.aLightData[index].fValidData)
6060	vmsvga3dSetLightData(pThisCC, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
6061	}
6062	glEnable(GL_LIGHT0 + index);
6063	}
6064	else
6065	glDisable(GL_LIGHT0 + index);
6066
6067	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6068	return VINF_SUCCESS;
6069	}
6070
6071	int vmsvga3dSetViewPort(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
6072	{
6073	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6074	AssertReturn(pState, VERR_NO_MEMORY);
6075
6076	Log(("vmsvga3dSetViewPort cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6077
6078	PVMSVGA3DCONTEXT pContext;
6079	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6080	AssertRCReturn(rc, rc);
6081
6082	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6083
6084	/* Save for vm state save/restore. */
6085	pContext->state.RectViewPort = *pRect;
6086	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
6087
6088	/** @todo y-inversion for partial viewport coordinates? */
6089	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
6090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6091
6092	/* Reset the projection matrix as that relies on the viewport setting. */
6093	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6094	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION,
6095	pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6096	else
6097	{
6098	float matrix[16];
6099
6100	/* identity matrix if no matrix set. */
6101	memset(matrix, 0, sizeof(matrix));
6102	matrix[0] = 1.0;
6103	matrix[5] = 1.0;
6104	matrix[10] = 1.0;
6105	matrix[15] = 1.0;
6106	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
6107	}
6108
6109	return VINF_SUCCESS;
6110	}
6111
6112	int vmsvga3dSetClipPlane(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, float plane[4])
6113	{
6114	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6115	AssertReturn(pState, VERR_NO_MEMORY);
6116	double oglPlane[4];
6117
6118	Log(("vmsvga3dSetClipPlane cid=%u %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)));
6119	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
6120
6121	PVMSVGA3DCONTEXT pContext;
6122	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6123	AssertRCReturn(rc, rc);
6124
6125	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6126
6127	/* Store for vm state save/restore. */
6128	pContext->state.aClipPlane[index].fValid = true;
6129	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
6130
6131	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
6132	oglPlane[0] = (double)plane[0];
6133	oglPlane[1] = (double)plane[1];
6134	oglPlane[2] = (double)plane[2];
6135	oglPlane[3] = (double)plane[3];
6136
6137	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
6138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6139
6140	return VINF_SUCCESS;
6141	}
6142
6143	int vmsvga3dSetScissorRect(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
6144	{
6145	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6146	AssertReturn(pState, VERR_NO_MEMORY);
6147
6148	Log(("vmsvga3dSetScissorRect cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6149
6150	PVMSVGA3DCONTEXT pContext;
6151	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6152	AssertRCReturn(rc, rc);
6153
6154	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6155
6156	/* Store for vm state save/restore. */
6157	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
6158	pContext->state.RectScissor = *pRect;
6159
6160	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
6161	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6162
6163	return VINF_SUCCESS;
6164	}
6165
6166	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
6167	{
6168	/* Convert byte color components to float (0-1.0) */
6169	*pAlpha = (GLfloat)(color >> 24) / 255.0;
6170	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
6171	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
6172	*pBlue = (GLfloat)(color & 0xff) / 255.0;
6173	}
6174
6175	int vmsvga3dCommandClear(PVGASTATECC pThisCC, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
6176	uint32_t cRects, SVGA3dRect *pRect)
6177	{
6178	GLbitfield mask = 0;
6179	GLbitfield restoreMask = 0;
6180	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6181	AssertReturn(pState, VERR_NO_MEMORY);
6182	GLboolean fDepthWriteEnabled = GL_FALSE;
6183	GLboolean afColorWriteEnabled[4] = { GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE };
6184
6185	Log(("vmsvga3dCommandClear cid=%u clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
6186
6187	PVMSVGA3DCONTEXT pContext;
6188	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6189	AssertRCReturn(rc, rc);
6190
6191	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6192
6193	if (clearFlag & SVGA3D_CLEAR_COLOR)
6194	{
6195	GLfloat red, green, blue, alpha;
6196	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
6197
6198	/* Set the color clear value. */
6199	glClearColor(red, green, blue, alpha);
6200	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6201
6202	mask \|= GL_COLOR_BUFFER_BIT;
6203
6204	/* glClear will not clear the color buffer if writing is disabled. */
6205	glGetBooleanv(GL_COLOR_WRITEMASK, afColorWriteEnabled);
6206	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6207	if ( afColorWriteEnabled[0] == GL_FALSE
6208	\|\| afColorWriteEnabled[1] == GL_FALSE
6209	\|\| afColorWriteEnabled[2] == GL_FALSE
6210	\|\| afColorWriteEnabled[3] == GL_FALSE)
6211	{
6212	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
6213	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6214
6215	restoreMask \|= GL_COLOR_BUFFER_BIT;
6216	}
6217
6218	}
6219
6220	if (clearFlag & SVGA3D_CLEAR_STENCIL)
6221	{
6222	/** @todo possibly the same problem as with glDepthMask */
6223	glClearStencil(stencil);
6224	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6225
6226	mask \|= GL_STENCIL_BUFFER_BIT;
6227	}
6228
6229	if (clearFlag & SVGA3D_CLEAR_DEPTH)
6230	{
6231	glClearDepth((GLdouble)depth);
6232	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6233
6234	mask \|= GL_DEPTH_BUFFER_BIT;
6235
6236	/* glClear will not clear the depth buffer if writing is disabled. */
6237	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
6238	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6239	if (fDepthWriteEnabled == GL_FALSE)
6240	{
6241	glDepthMask(GL_TRUE);
6242	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6243
6244	restoreMask \|= GL_DEPTH_BUFFER_BIT;
6245	}
6246	}
6247
6248	/* Save the current scissor test bit and scissor box. */
6249	glPushAttrib(GL_SCISSOR_BIT);
6250	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6251
6252	if (cRects)
6253	{
6254	glEnable(GL_SCISSOR_TEST);
6255	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6256
6257	for (uint32_t i = 0; i < cRects; ++i)
6258	{
6259	LogFunc(("rect [%d] %d,%d %dx%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h));
6260	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
6261	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6262
6263	glClear(mask);
6264	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6265	}
6266	}
6267	else
6268	{
6269	glDisable(GL_SCISSOR_TEST);
6270	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6271
6272	glClear(mask);
6273	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6274	}
6275
6276	/* Restore the old scissor test bit and box */
6277	glPopAttrib();
6278	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6279
6280	/* Restore the write states. */
6281	if (restoreMask & GL_COLOR_BUFFER_BIT)
6282	{
6283	glColorMask(afColorWriteEnabled[0],
6284	afColorWriteEnabled[1],
6285	afColorWriteEnabled[2],
6286	afColorWriteEnabled[3]);
6287	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6288	}
6289
6290	if (restoreMask & GL_DEPTH_BUFFER_BIT)
6291	{
6292	glDepthMask(fDepthWriteEnabled);
6293	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6294	}
6295
6296	return VINF_SUCCESS;
6297	}
6298
6299	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
6300	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized, uint32_t &cbAttrib)
6301	{
6302	normalized = GL_FALSE;
6303	switch (identity.type)
6304	{
6305	case SVGA3D_DECLTYPE_FLOAT1:
6306	size = 1;
6307	type = GL_FLOAT;
6308	cbAttrib = sizeof(float);
6309	break;
6310	case SVGA3D_DECLTYPE_FLOAT2:
6311	size = 2;
6312	type = GL_FLOAT;
6313	cbAttrib = 2 * sizeof(float);
6314	break;
6315	case SVGA3D_DECLTYPE_FLOAT3:
6316	size = 3;
6317	type = GL_FLOAT;
6318	cbAttrib = 3 * sizeof(float);
6319	break;
6320	case SVGA3D_DECLTYPE_FLOAT4:
6321	size = 4;
6322	type = GL_FLOAT;
6323	cbAttrib = 4 * sizeof(float);
6324	break;
6325
6326	case SVGA3D_DECLTYPE_D3DCOLOR:
6327	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
6328	type = GL_UNSIGNED_BYTE;
6329	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
6330	cbAttrib = sizeof(uint32_t);
6331	break;
6332
6333	case SVGA3D_DECLTYPE_UBYTE4N:
6334	normalized = GL_TRUE;
6335	RT_FALL_THRU();
6336	case SVGA3D_DECLTYPE_UBYTE4:
6337	size = 4;
6338	type = GL_UNSIGNED_BYTE;
6339	cbAttrib = sizeof(uint32_t);
6340	break;
6341
6342	case SVGA3D_DECLTYPE_SHORT2N:
6343	normalized = GL_TRUE;
6344	RT_FALL_THRU();
6345	case SVGA3D_DECLTYPE_SHORT2:
6346	size = 2;
6347	type = GL_SHORT;
6348	cbAttrib = 2 * sizeof(uint16_t);
6349	break;
6350
6351	case SVGA3D_DECLTYPE_SHORT4N:
6352	normalized = GL_TRUE;
6353	RT_FALL_THRU();
6354	case SVGA3D_DECLTYPE_SHORT4:
6355	size = 4;
6356	type = GL_SHORT;
6357	cbAttrib = 4 * sizeof(uint16_t);
6358	break;
6359
6360	case SVGA3D_DECLTYPE_USHORT4N:
6361	normalized = GL_TRUE;
6362	size = 4;
6363	type = GL_UNSIGNED_SHORT;
6364	cbAttrib = 4 * sizeof(uint16_t);
6365	break;
6366
6367	case SVGA3D_DECLTYPE_USHORT2N:
6368	normalized = GL_TRUE;
6369	size = 2;
6370	type = GL_UNSIGNED_SHORT;
6371	cbAttrib = 2 * sizeof(uint16_t);
6372	break;
6373
6374	case SVGA3D_DECLTYPE_UDEC3:
6375	size = 3;
6376	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
6377	cbAttrib = sizeof(uint32_t);
6378	break;
6379
6380	case SVGA3D_DECLTYPE_DEC3N:
6381	normalized = true;
6382	size = 3;
6383	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
6384	cbAttrib = sizeof(uint32_t);
6385	break;
6386
6387	case SVGA3D_DECLTYPE_FLOAT16_2:
6388	size = 2;
6389	type = GL_HALF_FLOAT;
6390	cbAttrib = 2 * sizeof(uint16_t);
6391	break;
6392	case SVGA3D_DECLTYPE_FLOAT16_4:
6393	size = 4;
6394	type = GL_HALF_FLOAT;
6395	cbAttrib = 4 * sizeof(uint16_t);
6396	break;
6397	default:
6398	AssertFailedReturn(VERR_INVALID_PARAMETER);
6399	}
6400
6401	//pVertexElement->Method = identity.method;
6402	//pVertexElement->Usage = identity.usage;
6403
6404	return VINF_SUCCESS;
6405	}
6406
6407	static float vmsvga3dFloat16To32(uint16_t f16)
6408	{
6409	/* From Wiki */
6410	#ifndef INFINITY
6411	static uint32_t const sBitsINFINITY = UINT32_C(0x7f800000);
6412	#define INFINITY ((float const )&sBitsINFINITY)
6413	#endif
6414	#ifndef NAN
6415	static uint32_t const sBitsNAN = UINT32_C(0x7fc00000);
6416	#define NAN ((float const )&sBitsNAN)
6417	#endif
6418
6419	uint16_t const s = (f16 >> UINT16_C(15)) & UINT16_C(0x1);
6420	uint16_t const e = (f16 >> UINT16_C(10)) & UINT16_C(0x1f);
6421	uint16_t const m = (f16 ) & UINT16_C(0x3ff);
6422
6423	float result = s ? 1.0f : -1.0f;
6424	if (e == 0)
6425	{
6426	if (m == 0)
6427	result = 0.0f; / zero, -0 */
6428	else
6429	result = (float)m / 1024.0f / 16384.0f; / subnormal numbers: sign * 2^-14 * 0.m */
6430	}
6431	else if (e == 0x1f)
6432	{
6433	if (m == 0)
6434	result = INFINITY; / +-infinity */
6435	else
6436	result = NAN; /* NAN */
6437	}
6438	else
6439	{
6440	result = powf(2.0f, (float)e - 15.0f) (1.0f + (float)m / 1024.0f); /* sign * 2^(e-15) * 1.m */
6441	}
6442
6443	return result;
6444	}
6445
6446	/* Set a vertex attribute according to VMSVGA vertex declaration. */
6447	static int vmsvga3dSetVertexAttrib(PVMSVGA3DSTATE pState, GLuint index, SVGA3dVertexArrayIdentity const pIdentity, GLvoid const pv)
6448	{
6449	switch (pIdentity->type)
6450	{
6451	case SVGA3D_DECLTYPE_FLOAT1:
6452	{
6453	/* "One-component float expanded to (float, 0, 0, 1)." */
6454	GLfloat const p = (GLfloat )pv;
6455	GLfloat const v[4] = { p[0], 0.0f, 0.0f, 1.0f };
6456	pState->ext.glVertexAttrib4fv(index, v);
6457	break;
6458	}
6459	case SVGA3D_DECLTYPE_FLOAT2:
6460	{
6461	/* "Two-component float expanded to (float, float, 0, 1)." */
6462	GLfloat const p = (GLfloat )pv;
6463	GLfloat const v[4] = { p[0], p[1], 0.0f, 1.0f };
6464	pState->ext.glVertexAttrib4fv(index, v);
6465	break;
6466	}
6467	case SVGA3D_DECLTYPE_FLOAT3:
6468	{
6469	/* "Three-component float expanded to (float, float, float, 1)." */
6470	GLfloat const p = (GLfloat )pv;
6471	GLfloat const v[4] = { p[0], p[1], p[2], 1.0f };
6472	pState->ext.glVertexAttrib4fv(index, v);
6473	break;
6474	}
6475	case SVGA3D_DECLTYPE_FLOAT4:
6476	pState->ext.glVertexAttrib4fv(index, (GLfloat const *)pv);
6477	break;
6478	case SVGA3D_DECLTYPE_D3DCOLOR:
6479	/** @todo Need to swap bytes? */
6480	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6481	break;
6482	case SVGA3D_DECLTYPE_UBYTE4:
6483	pState->ext.glVertexAttrib4ubv(index, (GLubyte const *)pv);
6484	break;
6485	case SVGA3D_DECLTYPE_SHORT2:
6486	{
6487	/* "Two-component, signed short expanded to (value, value, 0, 1)." */
6488	GLshort const p = (GLshort const )pv;
6489	GLshort const v[4] = { p[0], p[1], 0, 1 };
6490	pState->ext.glVertexAttrib4sv(index, v);
6491	break;
6492	}
6493	case SVGA3D_DECLTYPE_SHORT4:
6494	pState->ext.glVertexAttrib4sv(index, (GLshort const *)pv);
6495	break;
6496	case SVGA3D_DECLTYPE_UBYTE4N:
6497	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6498	break;
6499	case SVGA3D_DECLTYPE_SHORT2N:
6500	{
6501	/* "Normalized, two-component, signed short, expanded to (first short/32767.0, second short/32767.0, 0, 1)." */
6502	GLshort const p = (GLshort const )pv;
6503	GLshort const v[4] = { p[0], p[1], 0, 1 };
6504	pState->ext.glVertexAttrib4Nsv(index, v);
6505	break;
6506	}
6507	case SVGA3D_DECLTYPE_SHORT4N:
6508	pState->ext.glVertexAttrib4Nsv(index, (GLshort const *)pv);
6509	break;
6510	case SVGA3D_DECLTYPE_USHORT2N:
6511	{
6512	GLushort const p = (GLushort const )pv;
6513	GLushort const v[4] = { p[0], p[1], 0, 1 };
6514	pState->ext.glVertexAttrib4Nusv(index, v);
6515	break;
6516	}
6517	case SVGA3D_DECLTYPE_USHORT4N:
6518	pState->ext.glVertexAttrib4Nusv(index, (GLushort const *)pv);
6519	break;
6520	case SVGA3D_DECLTYPE_UDEC3:
6521	{
6522	/** @todo Test */
6523	/* "Three-component, unsigned, 10 10 10 format expanded to (value, value, value, 1)." */
6524	uint32_t const u32 = (uint32_t )pv;
6525	GLfloat const v[4] = { (float)(u32 & 0x3ff), (float)((u32 >> 10) & 0x3ff), (float)((u32 >> 20) & 0x3ff), 1.0f };
6526	pState->ext.glVertexAttrib4fv(index, v);
6527	break;
6528	}
6529	case SVGA3D_DECLTYPE_DEC3N:
6530	{
6531	/** @todo Test */
6532	/* "Three-component, signed, 10 10 10 format normalized and expanded to (v[0]/511.0, v[1]/511.0, v[2]/511.0, 1)." */
6533	uint32_t const u32 = (uint32_t )pv;
6534	GLfloat const v[4] = { (u32 & 0x3ff) / 511.0f, ((u32 >> 10) & 0x3ff) / 511.0f, ((u32 >> 20) & 0x3ff) / 511.0f, 1.0f };
6535	pState->ext.glVertexAttrib4fv(index, v);
6536	break;
6537	}
6538	case SVGA3D_DECLTYPE_FLOAT16_2:
6539	{
6540	/** @todo Test */
6541	/* "Two-component, 16-bit, floating point expanded to (value, value, 0, 1)." */
6542	uint16_t const p = (uint16_t )pv;
6543	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]), 0.0f, 1.0f };
6544	pState->ext.glVertexAttrib4fv(index, v);
6545	break;
6546	}
6547	case SVGA3D_DECLTYPE_FLOAT16_4:
6548	{
6549	/** @todo Test */
6550	uint16_t const p = (uint16_t )pv;
6551	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]),
6552	vmsvga3dFloat16To32(p[2]), vmsvga3dFloat16To32(p[3]) };
6553	pState->ext.glVertexAttrib4fv(index, v);
6554	break;
6555	}
6556	default:
6557	AssertFailedReturn(VERR_INVALID_PARAMETER);
6558	}
6559
6560	return VINF_SUCCESS;
6561	}
6562
6563	/* Convert VMWare primitive type to its OpenGL equivalent. */
6564	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6565	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6566	{
6567	switch (PrimitiveType)
6568	{
6569	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6570	*pMode = GL_TRIANGLES;
6571	pcVertices = cPrimitiveCount 3;
6572	break;
6573	case SVGA3D_PRIMITIVE_POINTLIST:
6574	*pMode = GL_POINTS;
6575	*pcVertices = cPrimitiveCount;
6576	break;
6577	case SVGA3D_PRIMITIVE_LINELIST:
6578	*pMode = GL_LINES;
6579	pcVertices = cPrimitiveCount 2;
6580	break;
6581	case SVGA3D_PRIMITIVE_LINESTRIP:
6582	*pMode = GL_LINE_STRIP;
6583	*pcVertices = cPrimitiveCount + 1;
6584	break;
6585	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
6586	*pMode = GL_TRIANGLE_STRIP;
6587	*pcVertices = cPrimitiveCount + 2;
6588	break;
6589	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
6590	*pMode = GL_TRIANGLE_FAN;
6591	*pcVertices = cPrimitiveCount + 2;
6592	break;
6593	default:
6594	return VERR_INVALID_PARAMETER;
6595	}
6596	return VINF_SUCCESS;
6597	}
6598
6599	static int vmsvga3dResetTransformMatrices(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
6600	{
6601	int rc;
6602
6603	/* Reset the view matrix (also takes the world matrix into account). */
6604	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
6605	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW,
6606	pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6607	else
6608	{
6609	float matrix[16];
6610
6611	/* identity matrix if no matrix set. */
6612	memset(matrix, 0, sizeof(matrix));
6613	matrix[0] = 1.0;
6614	matrix[5] = 1.0;
6615	matrix[10] = 1.0;
6616	matrix[15] = 1.0;
6617	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
6618	}
6619
6620	/* Reset the projection matrix. */
6621	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6622	{
6623	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6624	}
6625	else
6626	{
6627	float matrix[16];
6628
6629	/* identity matrix if no matrix set. */
6630	memset(matrix, 0, sizeof(matrix));
6631	matrix[0] = 1.0;
6632	matrix[5] = 1.0;
6633	matrix[10] = 1.0;
6634	matrix[15] = 1.0;
6635	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
6636	}
6637	AssertRC(rc);
6638	return rc;
6639	}
6640
6641	static int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext,
6642	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
6643	SVGA3dVertexDecl *pVertexDecl,
6644	SVGA3dVertexDivisor const *paVertexDivisors)
6645	{
6646	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6647	unsigned const sidVertex = pVertexDecl[0].array.surfaceId;
6648
6649	PVMSVGA3DSURFACE pVertexSurface;
6650	int rc = vmsvga3dSurfaceFromSid(pState, sidVertex, &pVertexSurface);
6651	AssertRCReturn(rc, rc);
6652
6653	Log(("vmsvga3dDrawPrimitives: vertex surface sid=%u\n", sidVertex));
6654
6655	/* Create and/or bind the vertex buffer. */
6656	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6657	{
6658	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->paMipmapLevels[0].cbSurface));
6659	PVMSVGA3DCONTEXT pSavedCtx = pContext;
6660	pContext = &pState->SharedCtx;
6661	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6662
6663	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6664	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6665	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6666
6667	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6668	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6669
6670	Assert(pVertexSurface->fDirty);
6671	/** @todo rethink usage dynamic/static */
6672	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->paMipmapLevels[0].cbSurface, pVertexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6673	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6674
6675	pVertexSurface->paMipmapLevels[0].fDirty = false;
6676	pVertexSurface->fDirty = false;
6677
6678	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6679
6680	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6681	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6682
6683	pContext = pSavedCtx;
6684	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6685	}
6686
6687	Assert(pVertexSurface->fDirty == false);
6688	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6689	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6690
6691	/* Setup the vertex declarations. */
6692	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6693	{
6694	GLint size;
6695	GLenum type;
6696	GLboolean normalized;
6697	uint32_t cbAttrib;
6698	GLuint index = iVertexDeclBase + iVertex;
6699
6700	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));
6701
6702	rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized, cbAttrib);
6703	AssertRCReturn(rc, rc);
6704
6705	ASSERT_GUEST_RETURN( pVertexSurface->paMipmapLevels[0].cbSurface >= pVertexDecl[iVertex].array.offset
6706	&& pVertexSurface->paMipmapLevels[0].cbSurface - pVertexDecl[iVertex].array.offset >= cbAttrib,
6707	VERR_INVALID_PARAMETER);
6708	RT_UNTRUSTED_VALIDATED_FENCE();
6709
6710	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6711	{
6712	/* Use numbered vertex arrays (or attributes) when shaders are active. */
6713	if (pVertexDecl[iVertex].array.stride)
6714	{
6715	pState->ext.glEnableVertexAttribArray(index);
6716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6717	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6718	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6719	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6720
6721	GLuint divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
6722	pState->ext.glVertexAttribDivisor(index, divisor);
6723	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6724
6725	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6726	}
6727	else
6728	{
6729	/*
6730	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6731	* - D3D (VMSVGA): "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6732	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6733	* VMSVGA uses the D3D semantics.
6734	*
6735	* Use glVertexAttrib in order to tell OpenGL to reuse the zero stride attributes for each vertex.
6736	*/
6737	pState->ext.glDisableVertexAttribArray(index);
6738	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6739
6740	const GLvoid v = (uint8_t )pVertexSurface->paMipmapLevels[0].pSurfaceData + pVertexDecl[iVertex].array.offset;
6741	vmsvga3dSetVertexAttrib(pState, index, &pVertexDecl[iVertex].identity, v);
6742	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6743	}
6744	}
6745	else
6746	{
6747	if (pVertexDecl[iVertex].array.stride == 0)
6748	{
6749	/* Zero stride means that the attribute pointer must not be increased.
6750	* See comment about stride in vmsvga3dDrawPrimitives.
6751	*/
6752	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
6753	AssertFailed();
6754	}
6755
6756	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6757	switch (pVertexDecl[iVertex].identity.usage)
6758	{
6759	case SVGA3D_DECLUSAGE_POSITIONT:
6760	case SVGA3D_DECLUSAGE_POSITION:
6761	{
6762	glEnableClientState(GL_VERTEX_ARRAY);
6763	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6764	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6765	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6766	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6767	break;
6768	}
6769	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6770	AssertFailed();
6771	break;
6772	case SVGA3D_DECLUSAGE_BLENDINDICES:
6773	AssertFailed();
6774	break;
6775	case SVGA3D_DECLUSAGE_NORMAL:
6776	glEnableClientState(GL_NORMAL_ARRAY);
6777	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6778	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6779	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6780	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6781	break;
6782	case SVGA3D_DECLUSAGE_PSIZE:
6783	AssertFailed();
6784	break;
6785	case SVGA3D_DECLUSAGE_TEXCOORD:
6786	/* Specify the affected texture unit. */
6787	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6788	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6789	#else
6790	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6791	#endif
6792	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6794	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6795	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6796	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6797	break;
6798	case SVGA3D_DECLUSAGE_TANGENT:
6799	AssertFailed();
6800	break;
6801	case SVGA3D_DECLUSAGE_BINORMAL:
6802	AssertFailed();
6803	break;
6804	case SVGA3D_DECLUSAGE_TESSFACTOR:
6805	AssertFailed();
6806	break;
6807	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6808	glEnableClientState(GL_COLOR_ARRAY);
6809	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6810	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6811	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6812	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6813	break;
6814	case SVGA3D_DECLUSAGE_FOG:
6815	glEnableClientState(GL_FOG_COORD_ARRAY);
6816	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6817	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6818	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6819	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6820	break;
6821	case SVGA3D_DECLUSAGE_DEPTH:
6822	AssertFailed();
6823	break;
6824	case SVGA3D_DECLUSAGE_SAMPLE:
6825	AssertFailed();
6826	break;
6827	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6828	}
6829	}
6830
6831	#ifdef LOG_ENABLED
6832	if (pVertexDecl[iVertex].array.stride == 0)
6833	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6834	#endif
6835	}
6836
6837	return VINF_SUCCESS;
6838	}
6839
6840	static int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase,
6841	uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6842	{
6843	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6844
6845	/* Clean up the vertex declarations. */
6846	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6847	{
6848	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6849	{
6850	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6851	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6852	vmsvga3dResetTransformMatrices(pThisCC, pContext);
6853	}
6854
6855	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6856	{
6857	/* Use numbered vertex arrays when shaders are active. */
6858	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6859	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6860	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6861	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6862	}
6863	else
6864	{
6865	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6866	switch (pVertexDecl[iVertex].identity.usage)
6867	{
6868	case SVGA3D_DECLUSAGE_POSITION:
6869	case SVGA3D_DECLUSAGE_POSITIONT:
6870	glDisableClientState(GL_VERTEX_ARRAY);
6871	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6872	break;
6873	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6874	break;
6875	case SVGA3D_DECLUSAGE_BLENDINDICES:
6876	break;
6877	case SVGA3D_DECLUSAGE_NORMAL:
6878	glDisableClientState(GL_NORMAL_ARRAY);
6879	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6880	break;
6881	case SVGA3D_DECLUSAGE_PSIZE:
6882	break;
6883	case SVGA3D_DECLUSAGE_TEXCOORD:
6884	/* Specify the affected texture unit. */
6885	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6886	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6887	#else
6888	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6889	#endif
6890	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6891	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6892	break;
6893	case SVGA3D_DECLUSAGE_TANGENT:
6894	break;
6895	case SVGA3D_DECLUSAGE_BINORMAL:
6896	break;
6897	case SVGA3D_DECLUSAGE_TESSFACTOR:
6898	break;
6899	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6900	glDisableClientState(GL_COLOR_ARRAY);
6901	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6902	break;
6903	case SVGA3D_DECLUSAGE_FOG:
6904	glDisableClientState(GL_FOG_COORD_ARRAY);
6905	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6906	break;
6907	case SVGA3D_DECLUSAGE_DEPTH:
6908	break;
6909	case SVGA3D_DECLUSAGE_SAMPLE:
6910	break;
6911	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6912	}
6913	}
6914	}
6915	/* Unbind the vertex buffer after usage. */
6916	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6917	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6918	return VINF_SUCCESS;
6919	}
6920
6921	int vmsvga3dDrawPrimitives(PVGASTATECC pThisCC, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6922	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6923	SVGA3dVertexDivisor *pVertexDivisor)
6924	{
6925	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6926	AssertReturn(pState, VERR_INTERNAL_ERROR);
6927	uint32_t iCurrentVertex;
6928
6929	Log(("vmsvga3dDrawPrimitives cid=%u numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6930
6931	/* Caller already check these, but it cannot hurt to check again... */
6932	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6933	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6934	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6935
6936	if (!cVertexDivisor)
6937	pVertexDivisor = NULL; /* Be sure. */
6938
6939	PVMSVGA3DCONTEXT pContext;
6940	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6941	AssertRCReturn(rc, rc);
6942
6943	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6944
6945	/* Check for pretransformed vertex declarations. */
6946	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6947	{
6948	switch (pVertexDecl[iVertex].identity.usage)
6949	{
6950	case SVGA3D_DECLUSAGE_POSITIONT:
6951	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6952	RT_FALL_THRU();
6953	case SVGA3D_DECLUSAGE_POSITION:
6954	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6955	pContext->state.RectViewPort.h,
6956	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6957	break;
6958	default: /* Shut up MSC. */ break;
6959	}
6960	}
6961
6962	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6963	if (pContext->pShaderContext)
6964	{
6965	uint32_t rtHeight = 0;
6966
6967	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6968	{
6969	PVMSVGA3DSURFACE pRenderTarget;
6970	rc = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pRenderTarget);
6971	AssertRCReturn(rc, rc);
6972
6973	rtHeight = pRenderTarget->paMipmapLevels[0].mipmapSize.height;
6974	}
6975
6976	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6977	}
6978
6979	/* Try to figure out if instancing is used.
6980	* Support simple instancing case with one set of indexed data and one set per-instance data.
6981	*/
6982	uint32_t cInstances = 0;
6983	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6984	{
6985	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6986	{
6987	if (cInstances == 0)
6988	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6989	else
6990	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6991	}
6992	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6993	{
6994	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6995	}
6996	}
6997
6998	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6999	iCurrentVertex = 0;
7000	while (iCurrentVertex < numVertexDecls)
7001	{
7002	uint32_t sidVertex = SVGA_ID_INVALID;
7003	uint32_t iVertex;
7004
7005	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7006	{
7007	if ( sidVertex != SVGA_ID_INVALID
7008	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7009	)
7010	break;
7011	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7012	}
7013
7014	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThisCC, pContext, iCurrentVertex, iVertex - iCurrentVertex,
7015	&pVertexDecl[iCurrentVertex], pVertexDivisor);
7016	AssertRCReturn(rc, rc);
7017
7018	iCurrentVertex = iVertex;
7019	}
7020
7021	/* Now draw the primitives. */
7022	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
7023	{
7024	GLenum modeDraw;
7025	unsigned const sidIndex = pRange[iPrimitive].indexArray.surfaceId;
7026	PVMSVGA3DSURFACE pIndexSurface = NULL;
7027	unsigned cVertices;
7028
7029	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
7030	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
7031	if (RT_FAILURE(rc))
7032	{
7033	AssertRC(rc);
7034	goto internal_error;
7035	}
7036
7037	if (sidIndex != SVGA3D_INVALID_ID)
7038	{
7039	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
7040
7041	rc = vmsvga3dSurfaceFromSid(pState, sidIndex, &pIndexSurface);
7042	if (RT_FAILURE(rc))
7043	{
7044	AssertRC(rc);
7045	goto internal_error;
7046	}
7047
7048	Log(("vmsvga3dDrawPrimitives: index surface sid=%u\n", sidIndex));
7049
7050	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
7051	{
7052	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->paMipmapLevels[0].cbSurface));
7053	pContext = &pState->SharedCtx;
7054	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7055
7056	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
7057	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7058	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
7059
7060	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7061	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7062
7063	Assert(pIndexSurface->fDirty);
7064
7065	/** @todo rethink usage dynamic/static */
7066	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->paMipmapLevels[0].cbSurface, pIndexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
7067	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7068
7069	pIndexSurface->paMipmapLevels[0].fDirty = false;
7070	pIndexSurface->fDirty = false;
7071
7072	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
7073
7074	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
7075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7076
7077	pContext = pState->papContexts[cid];
7078	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7079	}
7080	Assert(pIndexSurface->fDirty == false);
7081
7082	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7083	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7084	}
7085
7086	if (!pIndexSurface)
7087	{
7088	/* Render without an index buffer */
7089	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
7090	if (cInstances == 0)
7091	{
7092	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
7093	}
7094	else
7095	{
7096	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
7097	}
7098	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7099	}
7100	else
7101	{
7102	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
7103
7104	GLenum indexType;
7105	switch (pRange[iPrimitive].indexWidth)
7106	{
7107	case 1: indexType = GL_UNSIGNED_BYTE; break;
7108	case 2: indexType = GL_UNSIGNED_SHORT; break;
7109	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
7110	RT_FALL_THROUGH();
7111	case 4: indexType = GL_UNSIGNED_INT; break;
7112	}
7113
7114	Log(("DrawIndexedPrimitive %d cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d cInstances=%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, cInstances));
7115	if (cInstances == 0)
7116	{
7117	/* Render with an index buffer */
7118	if (pRange[iPrimitive].indexBias == 0)
7119	glDrawElements(modeDraw,
7120	cVertices,
7121	indexType,
7122	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
7123	else
7124	pState->ext.glDrawElementsBaseVertex(modeDraw,
7125	cVertices,
7126	indexType,
7127	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7128	pRange[iPrimitive].indexBias); /* basevertex */
7129	}
7130	else
7131	{
7132	/* Render with an index buffer */
7133	if (pRange[iPrimitive].indexBias == 0)
7134	pState->ext.glDrawElementsInstanced(modeDraw,
7135	cVertices,
7136	indexType,
7137	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7138	cInstances);
7139	else
7140	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
7141	cVertices,
7142	indexType,
7143	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7144	cInstances,
7145	pRange[iPrimitive].indexBias); /* basevertex */
7146	}
7147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7148
7149	/* Unbind the index buffer after usage. */
7150	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
7151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7152	}
7153	}
7154
7155	internal_error:
7156
7157	/* Deactivate the vertex declarations. */
7158	iCurrentVertex = 0;
7159	while (iCurrentVertex < numVertexDecls)
7160	{
7161	uint32_t sidVertex = SVGA_ID_INVALID;
7162	uint32_t iVertex;
7163
7164	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7165	{
7166	if ( sidVertex != SVGA_ID_INVALID
7167	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7168	)
7169	break;
7170	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7171	}
7172
7173	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThisCC, pContext, iCurrentVertex,
7174	iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
7175	AssertRCReturn(rc, rc);
7176
7177	iCurrentVertex = iVertex;
7178	}
7179
7180	#ifdef DEBUG
7181	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
7182	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
7183	{
7184	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
7185	{
7186	PVMSVGA3DSURFACE pTexture;
7187	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
7188	AssertContinue(RT_SUCCESS(rc2));
7189
7190	GLint activeTextureUnit = 0;
7191	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
7192	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7193
7194	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
7195	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7196
7197	GLint activeTexture = 0;
7198	glGetIntegerv(pTexture->bindingGL, &activeTexture);
7199	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7200
7201	pState->ext.glActiveTexture(activeTextureUnit);
7202	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7203
7204	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
7205	("%d vs %d unit %d (active unit %d) sid=%u\n", pTexture->oglId.texture, activeTexture, i,
7206	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
7207	}
7208	}
7209	#endif
7210
7211	#if 0
7212	/* Dump render target to a bitmap. */
7213	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
7214	{
7215	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
7216	PVMSVGA3DSURFACE pSurface;
7217	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
7218	if (RT_SUCCESS(rc2))
7219	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
7220	# if 0
7221	/* Stage 0 texture. */
7222	if (pContext->aSidActiveTextures[0] != SVGA3D_INVALID_ID)
7223	{
7224	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->aSidActiveTextures[0]);
7225	rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[0], &pSurface);
7226	if (RT_SUCCESS(rc2))
7227	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post-tx");
7228	}
7229	# endif
7230	}
7231	#endif
7232
7233	return rc;
7234	}
7235
7236
7237	int vmsvga3dShaderDefine(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
7238	{
7239	PVMSVGA3DSHADER pShader;
7240	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7241	AssertReturn(pState, VERR_NO_MEMORY);
7242
7243	Log(("vmsvga3dShaderDefine cid=%u shid=%d type=%s cbData=0x%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
7244
7245	PVMSVGA3DCONTEXT pContext;
7246	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7247	AssertRCReturn(rc, rc);
7248
7249	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
7250
7251	rc = vmsvga3dShaderParse(cbData, pShaderData);
7252	if (RT_FAILURE(rc))
7253	{
7254	AssertRC(rc);
7255	vmsvga3dShaderLogRel("Failed to parse", type, cbData, pShaderData);
7256	return rc;
7257	}
7258
7259	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7260
7261	if (type == SVGA3D_SHADERTYPE_VS)
7262	{
7263	if (shid >= pContext->cVertexShaders)
7264	{
7265	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7266	AssertReturn(pvNew, VERR_NO_MEMORY);
7267	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
7268	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
7269	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
7270	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
7271	pContext->cVertexShaders = shid + 1;
7272	}
7273	/* If one already exists with this id, then destroy it now. */
7274	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
7275	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paVertexShader[shid].type);
7276
7277	pShader = &pContext->paVertexShader[shid];
7278	}
7279	else
7280	{
7281	Assert(type == SVGA3D_SHADERTYPE_PS);
7282	if (shid >= pContext->cPixelShaders)
7283	{
7284	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7285	AssertReturn(pvNew, VERR_NO_MEMORY);
7286	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
7287	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
7288	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
7289	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
7290	pContext->cPixelShaders = shid + 1;
7291	}
7292	/* If one already exists with this id, then destroy it now. */
7293	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
7294	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paPixelShader[shid].type);
7295
7296	pShader = &pContext->paPixelShader[shid];
7297	}
7298
7299	memset(pShader, 0, sizeof(*pShader));
7300	pShader->id = shid;
7301	pShader->cid = cid;
7302	pShader->type = type;
7303	pShader->cbData = cbData;
7304	pShader->pShaderProgram = RTMemAllocZ(cbData);
7305	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
7306	memcpy(pShader->pShaderProgram, pShaderData, cbData);
7307
7308	#ifdef DUMP_SHADER_DISASSEMBLY
7309	LPD3DXBUFFER pDisassembly;
7310	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
7311	if (hr == D3D_OK)
7312	{
7313	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
7314	pDisassembly->Release();
7315	}
7316	#endif
7317
7318	switch (type)
7319	{
7320	case SVGA3D_SHADERTYPE_VS:
7321	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pVertexShader);
7322	AssertRC(rc);
7323	break;
7324
7325	case SVGA3D_SHADERTYPE_PS:
7326	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pPixelShader);
7327	AssertRC(rc);
7328	break;
7329
7330	default:
7331	AssertFailedReturn(VERR_INVALID_PARAMETER);
7332	}
7333	if (rc != VINF_SUCCESS)
7334	{
7335	vmsvga3dShaderLogRel("Failed to create", type, cbData, pShaderData);
7336
7337	RTMemFree(pShader->pShaderProgram);
7338	memset(pShader, 0, sizeof(*pShader));
7339	pShader->id = SVGA3D_INVALID_ID;
7340	}
7341
7342	return rc;
7343	}
7344
7345	int vmsvga3dShaderDestroy(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
7346	{
7347	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7348	AssertReturn(pState, VERR_NO_MEMORY);
7349	PVMSVGA3DSHADER pShader = NULL;
7350
7351	Log(("vmsvga3dShaderDestroy cid=%u shid=%d type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
7352
7353	PVMSVGA3DCONTEXT pContext;
7354	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7355	AssertRCReturn(rc, rc);
7356
7357	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7358
7359	if (type == SVGA3D_SHADERTYPE_VS)
7360	{
7361	if ( shid < pContext->cVertexShaders
7362	&& pContext->paVertexShader[shid].id == shid)
7363	{
7364	pShader = &pContext->paVertexShader[shid];
7365	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7366	AssertRC(rc);
7367	}
7368	}
7369	else
7370	{
7371	Assert(type == SVGA3D_SHADERTYPE_PS);
7372	if ( shid < pContext->cPixelShaders
7373	&& pContext->paPixelShader[shid].id == shid)
7374	{
7375	pShader = &pContext->paPixelShader[shid];
7376	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7377	AssertRC(rc);
7378	}
7379	}
7380
7381	if (pShader)
7382	{
7383	if (pShader->pShaderProgram)
7384	RTMemFree(pShader->pShaderProgram);
7385	memset(pShader, 0, sizeof(*pShader));
7386	pShader->id = SVGA3D_INVALID_ID;
7387	}
7388	else
7389	AssertFailedReturn(VERR_INVALID_PARAMETER);
7390
7391	return VINF_SUCCESS;
7392	}
7393
7394	int vmsvga3dShaderSet(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
7395	{
7396	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7397	AssertReturn(pState, VERR_NO_MEMORY);
7398	int rc;
7399
7400	Log(("vmsvga3dShaderSet cid=%u type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
7401
7402	if (!pContext)
7403	{
7404	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7405	AssertRCReturn(rc, rc);
7406	}
7407
7408	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7409
7410	if (type == SVGA3D_SHADERTYPE_VS)
7411	{
7412	/* Save for vm state save/restore. */
7413	pContext->state.shidVertex = shid;
7414	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
7415
7416	if ( shid < pContext->cVertexShaders
7417	&& pContext->paVertexShader[shid].id == shid)
7418	{
7419	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
7420	Assert(type == pShader->type);
7421
7422	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7423	AssertRCReturn(rc, rc);
7424	}
7425	else
7426	if (shid == SVGA_ID_INVALID)
7427	{
7428	/* Unselect shader. */
7429	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
7430	AssertRCReturn(rc, rc);
7431	}
7432	else
7433	AssertFailedReturn(VERR_INVALID_PARAMETER);
7434	}
7435	else
7436	{
7437	/* Save for vm state save/restore. */
7438	pContext->state.shidPixel = shid;
7439	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
7440
7441	Assert(type == SVGA3D_SHADERTYPE_PS);
7442	if ( shid < pContext->cPixelShaders
7443	&& pContext->paPixelShader[shid].id == shid)
7444	{
7445	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
7446	Assert(type == pShader->type);
7447
7448	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7449	AssertRCReturn(rc, rc);
7450	}
7451	else
7452	if (shid == SVGA_ID_INVALID)
7453	{
7454	/* Unselect shader. */
7455	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
7456	AssertRCReturn(rc, rc);
7457	}
7458	else
7459	AssertFailedReturn(VERR_INVALID_PARAMETER);
7460	}
7461
7462	return VINF_SUCCESS;
7463	}
7464
7465	int vmsvga3dShaderSetConst(PVGASTATECC pThisCC, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
7466	{
7467	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7468	AssertReturn(pState, VERR_NO_MEMORY);
7469
7470	Log(("vmsvga3dShaderSetConst cid=%u reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
7471
7472	PVMSVGA3DCONTEXT pContext;
7473	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7474	AssertRCReturn(rc, rc);
7475
7476	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7477
7478	for (uint32_t i = 0; i < cRegisters; i++)
7479	{
7480	#ifdef LOG_ENABLED
7481	switch (ctype)
7482	{
7483	case SVGA3D_CONST_TYPE_FLOAT:
7484	{
7485	float pValuesF = (float )pValues;
7486	Log(("ConstantF %d: value=" FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR "\n",
7487	reg + i, FLOAT_FMT_ARGS(pValuesF[i4 + 0]), FLOAT_FMT_ARGS(pValuesF[i4 + 1]), FLOAT_FMT_ARGS(pValuesF[i4 + 2]), FLOAT_FMT_ARGS(pValuesF[i4 + 3])));
7488	break;
7489	}
7490
7491	case SVGA3D_CONST_TYPE_INT:
7492	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7493	break;
7494
7495	case SVGA3D_CONST_TYPE_BOOL:
7496	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7497	break;
7498	}
7499	#endif
7500	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
7501	}
7502
7503	switch (type)
7504	{
7505	case SVGA3D_SHADERTYPE_VS:
7506	switch (ctype)
7507	{
7508	case SVGA3D_CONST_TYPE_FLOAT:
7509	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7510	break;
7511
7512	case SVGA3D_CONST_TYPE_INT:
7513	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7514	break;
7515
7516	case SVGA3D_CONST_TYPE_BOOL:
7517	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7518	break;
7519
7520	default:
7521	AssertFailedReturn(VERR_INVALID_PARAMETER);
7522	}
7523	AssertRCReturn(rc, rc);
7524	break;
7525
7526	case SVGA3D_SHADERTYPE_PS:
7527	switch (ctype)
7528	{
7529	case SVGA3D_CONST_TYPE_FLOAT:
7530	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7531	break;
7532
7533	case SVGA3D_CONST_TYPE_INT:
7534	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7535	break;
7536
7537	case SVGA3D_CONST_TYPE_BOOL:
7538	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7539	break;
7540
7541	default:
7542	AssertFailedReturn(VERR_INVALID_PARAMETER);
7543	}
7544	AssertRCReturn(rc, rc);
7545	break;
7546
7547	default:
7548	AssertFailedReturn(VERR_INVALID_PARAMETER);
7549	}
7550
7551	return VINF_SUCCESS;
7552	}
7553
7554	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7555	{
7556	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
7557	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7558
7559	GLuint idQuery = 0;
7560	pState->ext.glGenQueries(1, &idQuery);
7561	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7562	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
7563	pContext->occlusion.idQuery = idQuery;
7564	return VINF_SUCCESS;
7565	}
7566
7567	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7568	{
7569	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
7570	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7571
7572	if (pContext->occlusion.idQuery)
7573	{
7574	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
7575	}
7576	return VINF_SUCCESS;
7577	}
7578
7579	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7580	{
7581	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
7582	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7583
7584	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
7585	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7586	return VINF_SUCCESS;
7587	}
7588
7589	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7590	{
7591	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
7592	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7593
7594	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
7595	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7596	return VINF_SUCCESS;
7597	}
7598
7599	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
7600	{
7601	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
7602	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7603
7604	GLuint pixels = 0;
7605	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
7606	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7607
7608	*pu32Pixels = (uint32_t)pixels;
7609	return VINF_SUCCESS;
7610	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 84742

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