DevVGA-SVGA3d-ogl.cpp@ 89121

Last change on this file since 89121 was 89121, checked in by vboxsync, 4 years ago
Devices/Graphics: Function tables for 3D backends. bugref:9830
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 89121 2021-05-17 19:30:44Z 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 int vmsvga3dBackContextDestroy(PVGASTATECC pThisCC, uint32_t cid);
173	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
174	static int vmsvga3dBackSetLightData(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, SVGA3dLightData *pData);
175	static int vmsvga3dBackSetClipPlane(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, float plane[4]);
176	static int vmsvga3dBackShaderDestroy(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type);
177	static int vmsvga3dBackOcclusionQueryDelete(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext);
178	static int vmsvga3dBackCreateTexture(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext, PVMSVGA3DSURFACE pSurface);
179
180	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
181	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
182
183
184	/**
185	* Checks if the given OpenGL extension is supported.
186	*
187	* @returns true if supported, false if not.
188	* @param pState The VMSVGA3d state.
189	* @param rsMinGLVersion The OpenGL version that introduced this feature
190	* into the core.
191	* @param pszWantedExtension The name of the OpenGL extension we want padded
192	* with one space at each end.
193	* @remarks Init time only.
194	*/
195	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
196	{
197	RT_NOREF(rsMinGLVersion);
198	/* check padding. */
199	Assert(pszWantedExtension[0] == ' ');
200	Assert(pszWantedExtension[1] != ' ');
201	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
202
203	/* Look it up. */
204	bool fRet = false;
205	if (strstr(pState->pszExtensions, pszWantedExtension))
206	fRet = true;
207
208	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
209	#ifdef RT_OS_DARWIN
210	AssertMsg( rsMinGLVersion == 0.0
211	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
212	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
213	("%s actual:%d min:%d fRet=%d\n",
214	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
215	#else
216	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
217	("%s actual:%d min:%d fRet=%d\n",
218	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
219	#endif
220	return fRet;
221	}
222
223
224	/**
225	* Outputs GL_EXTENSIONS list to the release log.
226	*/
227	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
228	{
229	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
230	bool fBuffered = RTLogRelSetBuffering(true);
231
232	/*
233	* Determin the column widths first.
234	*/
235	size_t acchWidths[4] = { 1, 1, 1, 1 };
236	uint32_t i;
237	const char *psz = pszExtensions;
238	for (i = 0; ; i++)
239	{
240	while (*psz == ' ')
241	psz++;
242	if (!*psz)
243	break;
244
245	const char *pszEnd = strchr(psz, ' ');
246	AssertBreak(pszEnd);
247	size_t cch = pszEnd - psz;
248
249	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
250	if (acchWidths[iColumn] < cch)
251	acchWidths[iColumn] = cch;
252
253	psz = pszEnd;
254	}
255
256	/*
257	* Output it.
258	*/
259	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
260	psz = pszExtensions;
261	for (i = 0; ; i++)
262	{
263	while (*psz == ' ')
264	psz++;
265	if (!*psz)
266	break;
267
268	const char *pszEnd = strchr(psz, ' ');
269	AssertBreak(pszEnd);
270	size_t cch = pszEnd - psz;
271
272	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
273	if (iColumn == 0)
274	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
275	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
276	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
277	else
278	LogRel((" %.*s", cch, psz));
279
280	psz = pszEnd;
281	}
282
283	RTLogRelSetBuffering(fBuffered);
284	LogRel(("\n"));
285	}
286
287	/**
288	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
289	* @a ppszExtensions.
290	*
291	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
292	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
293	* @param fGLProfileVersion The OpenGL profile version.
294	*/
295	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
296	{
297	int rc;
298	*ppszExtensions = NULL;
299
300	/*
301	* Try the old glGetString interface first.
302	*/
303	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
304	if (pszExtensions)
305	{
306	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
307	AssertLogRelRCReturn(rc, rc);
308	}
309	else
310	{
311	/*
312	* The new interface where each extension string is retrieved separately.
313	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
314	* the above GL_EXTENSIONS error lingers on darwin. sucks.
315	*/
316	#ifndef GL_NUM_EXTENSIONS
317	# define GL_NUM_EXTENSIONS 0x821D
318	#endif
319	GLint cExtensions = 1024;
320	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
321	Assert(cExtensions != 1024);
322
323	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
324	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
325
326	rc = RTStrAAppend(ppszExtensions, " ");
327	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
328	{
329	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
330	if (pszExt)
331	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
332	}
333	AssertRCReturn(rc, rc);
334	}
335
336	#if 1
337	/*
338	* Add extensions promoted into the core OpenGL profile.
339	*/
340	static const struct
341	{
342	float fGLVersion;
343	const char *pszzExtensions;
344	} s_aPromotedExtensions[] =
345	{
346	{
347	1.1f,
348	" GL_EXT_vertex_array \0"
349	" GL_EXT_polygon_offset \0"
350	" GL_EXT_blend_logic_op \0"
351	" GL_EXT_texture \0"
352	" GL_EXT_copy_texture \0"
353	" GL_EXT_subtexture \0"
354	" GL_EXT_texture_object \0"
355	" GL_ARB_framebuffer_object \0"
356	" GL_ARB_map_buffer_range \0"
357	" GL_ARB_vertex_array_object \0"
358	"\0"
359	},
360	{
361	1.2f,
362	" EXT_texture3D \0"
363	" EXT_bgra \0"
364	" EXT_packed_pixels \0"
365	" EXT_rescale_normal \0"
366	" EXT_separate_specular_color \0"
367	" SGIS_texture_edge_clamp \0"
368	" SGIS_texture_lod \0"
369	" EXT_draw_range_elements \0"
370	"\0"
371	},
372	{
373	1.3f,
374	" GL_ARB_texture_compression \0"
375	" GL_ARB_texture_cube_map \0"
376	" GL_ARB_multisample \0"
377	" GL_ARB_multitexture \0"
378	" GL_ARB_texture_env_add \0"
379	" GL_ARB_texture_env_combine \0"
380	" GL_ARB_texture_env_dot3 \0"
381	" GL_ARB_texture_border_clamp \0"
382	" GL_ARB_transpose_matrix \0"
383	"\0"
384	},
385	{
386	1.5f,
387	" GL_SGIS_generate_mipmap \0"
388	/" GL_NV_blend_equare \0"/
389	" GL_ARB_depth_texture \0"
390	" GL_ARB_shadow \0"
391	" GL_EXT_fog_coord \0"
392	" GL_EXT_multi_draw_arrays \0"
393	" GL_ARB_point_parameters \0"
394	" GL_EXT_secondary_color \0"
395	" GL_EXT_blend_func_separate \0"
396	" GL_EXT_stencil_wrap \0"
397	" GL_ARB_texture_env_crossbar \0"
398	" GL_EXT_texture_lod_bias \0"
399	" GL_ARB_texture_mirrored_repeat \0"
400	" GL_ARB_window_pos \0"
401	"\0"
402	},
403	{
404	1.6f,
405	" GL_ARB_vertex_buffer_object \0"
406	" GL_ARB_occlusion_query \0"
407	" GL_EXT_shadow_funcs \0"
408	},
409	{
410	2.0f,
411	" GL_ARB_shader_objects \0" /??/
412	" GL_ARB_vertex_shader \0" /??/
413	" GL_ARB_fragment_shader \0" /??/
414	" GL_ARB_shading_language_100 \0" /??/
415	" GL_ARB_draw_buffers \0"
416	" GL_ARB_texture_non_power_of_two \0"
417	" GL_ARB_point_sprite \0"
418	" GL_ATI_separate_stencil \0"
419	" GL_EXT_stencil_two_side \0"
420	"\0"
421	},
422	{
423	2.1f,
424	" GL_ARB_pixel_buffer_object \0"
425	" GL_EXT_texture_sRGB \0"
426	"\0"
427	},
428	{
429	3.0f,
430	" GL_ARB_framebuffer_object \0"
431	" GL_ARB_map_buffer_range \0"
432	" GL_ARB_vertex_array_object \0"
433	"\0"
434	},
435	{
436	3.1f,
437	" GL_ARB_copy_buffer \0"
438	" GL_ARB_uniform_buffer_object \0"
439	"\0"
440	},
441	{
442	3.2f,
443	" GL_ARB_vertex_array_bgra \0"
444	" GL_ARB_draw_elements_base_vertex \0"
445	" GL_ARB_fragment_coord_conventions \0"
446	" GL_ARB_provoking_vertex \0"
447	" GL_ARB_seamless_cube_map \0"
448	" GL_ARB_texture_multisample \0"
449	" GL_ARB_depth_clamp \0"
450	" GL_ARB_sync \0"
451	" GL_ARB_geometry_shader4 \0" /??/
452	"\0"
453	},
454	{
455	3.3f,
456	" GL_ARB_blend_func_extended \0"
457	" GL_ARB_sampler_objects \0"
458	" GL_ARB_explicit_attrib_location \0"
459	" GL_ARB_occlusion_query2 \0"
460	" GL_ARB_shader_bit_encoding \0"
461	" GL_ARB_texture_rgb10_a2ui \0"
462	" GL_ARB_texture_swizzle \0"
463	" GL_ARB_timer_query \0"
464	" GL_ARB_vertex_type_2_10_10_10_rev \0"
465	"\0"
466	},
467	{
468	4.0f,
469	" GL_ARB_texture_query_lod \0"
470	" GL_ARB_draw_indirect \0"
471	" GL_ARB_gpu_shader5 \0"
472	" GL_ARB_gpu_shader_fp64 \0"
473	" GL_ARB_shader_subroutine \0"
474	" GL_ARB_tessellation_shader \0"
475	" GL_ARB_texture_buffer_object_rgb32 \0"
476	" GL_ARB_texture_cube_map_array \0"
477	" GL_ARB_texture_gather \0"
478	" GL_ARB_transform_feedback2 \0"
479	" GL_ARB_transform_feedback3 \0"
480	"\0"
481	},
482	{
483	4.1f,
484	" GL_ARB_ES2_compatibility \0"
485	" GL_ARB_get_program_binary \0"
486	" GL_ARB_separate_shader_objects \0"
487	" GL_ARB_shader_precision \0"
488	" GL_ARB_vertex_attrib_64bit \0"
489	" GL_ARB_viewport_array \0"
490	"\0"
491	}
492	};
493
494	uint32_t cPromoted = 0;
495	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
496	{
497	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
498	while (*pszExt)
499	{
500	# ifdef VBOX_STRICT
501	size_t cchExt = strlen(pszExt);
502	Assert(cchExt > 3);
503	Assert(pszExt[0] == ' ');
504	Assert(pszExt[1] != ' ');
505	Assert(pszExt[cchExt - 2] != ' ');
506	Assert(pszExt[cchExt - 1] == ' ');
507	# endif
508
509	if (strstr(*ppszExtensions, pszExt) == NULL)
510	{
511	if (cPromoted++ == 0)
512	{
513	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
514	AssertRCReturn(rc, rc);
515	}
516
517	rc = RTStrAAppend(ppszExtensions, pszExt);
518	AssertRCReturn(rc, rc);
519	}
520
521	pszExt = strchr(pszExt, '\0') + 1;
522	}
523	}
524	#endif
525
526	return VINF_SUCCESS;
527	}
528
529	/** Check whether this is an Intel GL driver.
530	*
531	* @returns true if this seems to be some Intel graphics.
532	*/
533	static bool vmsvga3dIsVendorIntel(void)
534	{
535	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
536	}
537
538	/**
539	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
540	*/
541	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
542	{
543	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
544	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
545	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
546	#else
547	NOREF(pThis);
548	NOREF(fOtherProfile);
549	#endif
550	}
551
552
553	/**
554	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
555	*/
556	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
557	char *pszBuf, size_t cbBuf, bool fOtherProfile)
558	{
559	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
560	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
561	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
562	while (*pszCur == ' ')
563	pszCur++;
564	if (!*pszCur)
565	return false;
566
567	const char *pszEnd = strchr(pszCur, ' ');
568	AssertReturn(pszEnd, false);
569	size_t cch = pszEnd - pszCur;
570	if (cch < cbBuf)
571	{
572	memcpy(pszBuf, pszCur, cch);
573	pszBuf[cch] = '\0';
574	}
575	else if (cbBuf > 0)
576	{
577	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
578	pszBuf[cbBuf - 1] = '\0';
579	}
580
581	ppvEnumCtx = (void )pszEnd;
582	return true;
583	}
584
585
586	/**
587	* Initializes the VMSVGA3D state during VGA device construction.
588	*
589	* Failure are generally not fatal, 3D support will just be disabled.
590	*
591	* @returns VBox status code.
592	* @param pDevIns The device instance.
593	* @param pThis The shared VGA/VMSVGA state where svga.p3dState will be
594	* modified.
595	* @param pThisCC The VGA/VMSVGA state for ring-3.
596	*/
597	static int vmsvga3dBackInit(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
598	{
599	int rc;
600	RT_NOREF(pDevIns, pThis);
601
602	AssertCompile(GL_TRUE == 1);
603	AssertCompile(GL_FALSE == 0);
604
605	#ifdef VMSVGA3D_DYNAMIC_LOAD
606	rc = glLdrInit(pDevIns);
607	if (RT_FAILURE(rc))
608	{
609	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
610	return rc;
611	}
612	#endif
613
614	/*
615	* Load and resolve imports from the external shared libraries.
616	*/
617	RTERRINFOSTATIC ErrInfo;
618	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
619	if (RT_FAILURE(rc))
620	{
621	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
622	return rc;
623	}
624	#ifdef RT_OS_DARWIN
625	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
626	if (RT_FAILURE(rc))
627	{
628	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
629	return rc;
630	}
631	#endif
632
633	/*
634	* Allocate the state.
635	*/
636	pThisCC->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
637	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
638
639	#ifdef RT_OS_WINDOWS
640	/* Create event semaphore and async IO thread. */
641	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
642	rc = RTSemEventCreate(&pState->WndRequestSem);
643	if (RT_SUCCESS(rc))
644	{
645	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
646	"VMSVGA3DWND");
647	if (RT_SUCCESS(rc))
648	return VINF_SUCCESS;
649
650	/* bail out. */
651	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
652	RTSemEventDestroy(pState->WndRequestSem);
653	}
654	else
655	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
656	RTMemFree(pThisCC->svga.p3dState);
657	pThisCC->svga.p3dState = NULL;
658	return rc;
659	#else
660	return VINF_SUCCESS;
661	#endif
662	}
663
664	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
665	{
666	/* A strict approach to get a proc address as recommended by Khronos:
667	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
668	* - "If the function is an extension, we need to check to see if the extension is supported."
669	*/
670
671	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
672	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
673	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
674	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
675	} while(0)
676
677	/* Get an optional function address. LogRel on failure. */
678	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
679	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
680	if (!pState->ext.ProcName) \
681	{ \
682	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
683	AssertFailed(); \
684	} \
685	} while(0)
686
687	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
688	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
689	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
690	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
691	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
692	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
693	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
694	GLGETPROC_(PFNGLTEXSUBIMAGE3DPROC , glTexSubImage3D, "");
695	GLGETPROC_(PFNGLGETCOMPRESSEDTEXIMAGEPROC , glGetCompressedTexImage, "");
696	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
697	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
698	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
699	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC , glCompressedTexSubImage3D, "");
700	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
701	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
702	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
703	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
704	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
705	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
706	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
707	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
708	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
709	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
710	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
711	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
712	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
713	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
714	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
715	/* glGetProgramivARB determines implementation limits for the program
716	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
717	* It differs from glGetProgramiv, which returns a parameter from a program object.
718	*/
719	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
720	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
721	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
722	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
723	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
724	#endif
725	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
726	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
727	#endif
728	GLGETPROC_(PFNGLDRAWBUFFERSPROC , glDrawBuffers, "");
729	GLGETPROC_(PFNGLCREATESHADERPROC , glCreateShader, "");
730	GLGETPROC_(PFNGLSHADERSOURCEPROC , glShaderSource, "");
731	GLGETPROC_(PFNGLCOMPILESHADERPROC , glCompileShader, "");
732	GLGETPROC_(PFNGLGETSHADERIVPROC , glGetShaderiv, "");
733	GLGETPROC_(PFNGLGETSHADERINFOLOGPROC , glGetShaderInfoLog, "");
734	GLGETPROC_(PFNGLCREATEPROGRAMPROC , glCreateProgram, "");
735	GLGETPROC_(PFNGLATTACHSHADERPROC , glAttachShader, "");
736	GLGETPROC_(PFNGLLINKPROGRAMPROC , glLinkProgram, "");
737	GLGETPROC_(PFNGLGETPROGRAMIVPROC , glGetProgramiv, "");
738	GLGETPROC_(PFNGLGETPROGRAMINFOLOGPROC , glGetProgramInfoLog, "");
739	GLGETPROC_(PFNGLUSEPROGRAMPROC , glUseProgram, "");
740	GLGETPROC_(PFNGLGETUNIFORMLOCATIONPROC , glGetUniformLocation, "");
741	GLGETPROC_(PFNGLUNIFORM1IPROC , glUniform1i, "");
742	GLGETPROC_(PFNGLUNIFORM4FVPROC , glUniform4fv, "");
743	GLGETPROC_(PFNGLDETACHSHADERPROC , glDetachShader, "");
744	GLGETPROC_(PFNGLDELETESHADERPROC , glDeleteShader, "");
745	GLGETPROC_(PFNGLDELETEPROGRAMPROC , glDeleteProgram, "");
746
747	GLGETPROC_(PFNGLVERTEXATTRIB4FVPROC , glVertexAttrib4fv, "");
748	GLGETPROC_(PFNGLVERTEXATTRIB4UBVPROC , glVertexAttrib4ubv, "");
749	GLGETPROC_(PFNGLVERTEXATTRIB4NUBVPROC , glVertexAttrib4Nubv, "");
750	GLGETPROC_(PFNGLVERTEXATTRIB4SVPROC , glVertexAttrib4sv, "");
751	GLGETPROC_(PFNGLVERTEXATTRIB4NSVPROC , glVertexAttrib4Nsv, "");
752	GLGETPROC_(PFNGLVERTEXATTRIB4NUSVPROC , glVertexAttrib4Nusv, "");
753
754	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
755	if ( pState->rsGLVersion >= 3.0f
756	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
757	{
758	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
759	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
760	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
761	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
762	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
763	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
764	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
765	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
766	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
767	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
768	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
769	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
770	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
771	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
772	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
773	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
774	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
775	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
776	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
777	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
778	}
779
780	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
781	if (pState->rsGLVersion >= 3.1f)
782	{
783	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
784	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
785	}
786	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
787	{
788	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
789	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
790	}
791	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
792	{
793	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
794	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
795	}
796
797	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
798	if ( pState->rsGLVersion >= 3.2f
799	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
800	{
801	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
802	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
803	}
804
805	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
806	if ( pState->rsGLVersion >= 3.2f
807	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
808	{
809	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
810	}
811
812	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
813	if (pState->rsGLVersion >= 3.3f)
814	{
815	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
816	}
817	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
818	{
819	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
820	}
821
822	#undef GLGETPROCOPT_
823	#undef GLGETPROC_
824
825	return VINF_SUCCESS;
826	}
827
828
829	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
830	static int vmsvga3dBackPowerOn(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
831	{
832	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
833	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
834	PVMSVGA3DCONTEXT pContext;
835	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
836	PVMSVGA3DCONTEXT pOtherCtx;
837	#endif
838	int rc;
839	RT_NOREF(pDevIns, pThis);
840
841	if (pState->rsGLVersion != 0.0)
842	return VINF_SUCCESS; /* already initialized (load state) */
843
844	/*
845	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
846	*/
847	rc = vmsvga3dContextDefineOgl(pThisCC, 1, VMSVGA3D_DEF_CTX_F_INIT);
848	AssertRCReturn(rc, rc);
849
850	pContext = pState->papContexts[1];
851	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
852
853	#ifdef VMSVGA3D_DYNAMIC_LOAD
854	/* Context is set and it is possible now to resolve extension functions. */
855	rc = glLdrGetExtFunctions(pDevIns);
856	if (RT_FAILURE(rc))
857	{
858	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
859	return rc;
860	}
861	#endif
862
863	LogRel(("VMSVGA3d: OpenGL version: %s\n"
864	"VMSVGA3d: OpenGL Vendor: %s\n"
865	"VMSVGA3d: OpenGL Renderer: %s\n"
866	"VMSVGA3d: OpenGL shader language version: %s\n",
867	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
868	glGetString(GL_SHADING_LANGUAGE_VERSION)));
869
870	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
871	AssertRCReturn(rc, rc);
872	vmsvga3dLogRelExtensions("", pState->pszExtensions);
873
874	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
875
876
877	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
878	/*
879	* Get the extension list for the alternative profile so we can better
880	* figure out the shader model and stuff.
881	*/
882	rc = vmsvga3dContextDefineOgl(pThisCC, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
883	AssertLogRelRCReturn(rc, rc);
884	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
885
886	pOtherCtx = pState->papContexts[2];
887	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
888
889	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
890	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
891	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
892	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
893	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
894	glGetString(GL_SHADING_LANGUAGE_VERSION)));
895
896	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
897	AssertRCReturn(rc, rc);
898	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
899
900	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
901
902	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
903	#else
904	pState->pszOtherExtensions = (char *)"";
905	pState->rsOtherGLVersion = pState->rsGLVersion;
906	#endif
907
908	/*
909	* Resolve GL function pointers and store them in pState->ext.
910	*/
911	rc = vmsvga3dLoadGLFunctions(pState);
912	if (RT_FAILURE(rc))
913	{
914	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
915	return rc;
916	}
917
918	/*
919	* Initialize the capabilities with sensible defaults.
920	*/
921	pState->caps.maxActiveLights = 1;
922	pState->caps.maxTextures = 1;
923	pState->caps.maxClipDistances = 4;
924	pState->caps.maxColorAttachments = 1;
925	pState->caps.maxRectangleTextureSize = 2048;
926	pState->caps.maxTextureAnisotropy = 1;
927	pState->caps.maxVertexShaderInstructions = 1024;
928	pState->caps.maxFragmentShaderInstructions = 1024;
929	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
930	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
931	pState->caps.flPointSize[0] = 1;
932	pState->caps.flPointSize[1] = 1;
933
934	/*
935	* Query capabilities
936	*/
937	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
938	pState->caps.fTextureFilterAnisotropicSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_filter_anisotropic ");
939
940	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
941	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
942	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
943	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
944	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
945	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
946	#else
947	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
948	#endif
949	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
950	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
951	if (pState->caps.fTextureFilterAnisotropicSupported)
952	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
953	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
954
955	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
956	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
957	&pState->caps.maxFragmentShaderTemps));
958	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
959	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
960	&pState->caps.maxFragmentShaderInstructions));
961	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
962	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
963	&pState->caps.maxVertexShaderTemps));
964	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
965	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
966	&pState->caps.maxVertexShaderInstructions));
967
968	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
969	* ARB Assembly Language
970	* These are done through testing the presence of extensions. You should test them in this order:
971	* GL_NV_gpu_program4: SM 4.0 or better.
972	* GL_NV_vertex_program3: SM 3.0 or better.
973	* GL_ARB_fragment_program: SM 2.0 or better.
974	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
975	*
976	*/
977	/** @todo distinguish between vertex and pixel shaders??? */
978	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
979	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
980	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
981	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
982	#else
983	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
984	#endif
985	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
986	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
987	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
988	{
989	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
990	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
991	}
992	else
993	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
994	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
995	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
996	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
997	)
998	{
999	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
1000	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
1001	}
1002	else
1003	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
1004	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
1005	{
1006	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1007	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1008	}
1009	else
1010	{
1011	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1012	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1013	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1014	}
1015
1016	/* Now check the shading language version, in case it indicates a higher supported version. */
1017	if (v >= 3.30f)
1018	{
1019	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
1020	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
1021	}
1022	else
1023	if (v >= 1.20f)
1024	{
1025	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1026	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1027	}
1028
1029	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1030	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1031	{
1032	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1033	}
1034
1035	/*
1036	* Tweak capabilities.
1037	*/
1038	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1039	if ( pState->caps.maxVertexShaderTemps < 32
1040	&& vmsvga3dIsVendorIntel())
1041	pState->caps.maxVertexShaderTemps = 32;
1042
1043	#if 0
1044	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1045	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1046	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1047	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1048	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1049	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1050	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1051	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1052	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1053	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1054	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1055	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1056	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1057	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1058	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1059	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1060	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1061	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1062	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1063	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1064	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1065	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1066	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1067	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1068	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1069	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1070	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1071	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1072	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1073	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1074	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1075	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1076	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1077	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1078	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1079	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1080	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1081	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1082	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1083	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1084	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1085	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1086	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1087	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1088	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1089	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1090	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1091	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1092	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1093	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1094	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1095	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1096	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1097	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1098	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1099	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1100	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1101	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1102	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1103	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1104	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1105	SVGA3D_DEVCAP_SURFACEFMT_ATI1 = 82,
1106	SVGA3D_DEVCAP_SURFACEFMT_ATI2 = 83,
1107	#endif
1108
1109	LogRel(("VMSVGA3d: Capabilities:\n"));
1110	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1111	pState->caps.maxActiveLights, pState->caps.maxTextures));
1112	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1113	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1114	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1115	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1116	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1117	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1118	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1119	pState->caps.maxFragmentShaderTemps,
1120	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1121	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1122	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d\n",
1123	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion));
1124	LogRel(("VMSVGA3d: fS3TCSupported=%-2d fTextureFilterAnisotropicSupported=%d\n",
1125	pState->caps.fS3TCSupported, pState->caps.fTextureFilterAnisotropicSupported));
1126
1127
1128	/* Initialize the shader library. */
1129	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1130	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1131	rc = ShaderInitLib(&pState->ShaderIf);
1132	AssertRC(rc);
1133
1134	/* Cleanup */
1135	rc = vmsvga3dBackContextDestroy(pThisCC, 1);
1136	AssertRC(rc);
1137	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1138	rc = vmsvga3dBackContextDestroy(pThisCC, 2);
1139	AssertRC(rc);
1140	#endif
1141
1142	if ( pState->rsGLVersion < 3.0
1143	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1144	{
1145	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1146	return VERR_NOT_IMPLEMENTED;
1147	}
1148
1149	return VINF_SUCCESS;
1150	}
1151
1152	static int vmsvga3dBackReset(PVGASTATECC pThisCC)
1153	{
1154	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1155	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
1156
1157	/* Destroy all leftover surfaces. */
1158	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1159	{
1160	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1161	vmsvga3dSurfaceDestroy(pThisCC, pState->papSurfaces[i]->id);
1162	}
1163
1164	/* Destroy all leftover contexts. */
1165	for (uint32_t i = 0; i < pState->cContexts; i++)
1166	{
1167	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1168	vmsvga3dBackContextDestroy(pThisCC, pState->papContexts[i]->id);
1169	}
1170
1171	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1172	vmsvga3dContextDestroyOgl(pThisCC, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1173
1174	return VINF_SUCCESS;
1175	}
1176
1177	static int vmsvga3dBackTerminate(PVGASTATECC pThisCC)
1178	{
1179	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1180	AssertReturn(pState, VERR_WRONG_ORDER);
1181	int rc;
1182
1183	rc = vmsvga3dBackReset(pThisCC);
1184	AssertRCReturn(rc, rc);
1185
1186	/* Terminate the shader library. */
1187	rc = ShaderDestroyLib();
1188	AssertRC(rc);
1189
1190	#ifdef RT_OS_WINDOWS
1191	/* Terminate the window creation thread. */
1192	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1193	AssertRCReturn(rc, rc);
1194
1195	RTSemEventDestroy(pState->WndRequestSem);
1196	#elif defined(RT_OS_DARWIN)
1197
1198	#elif defined(RT_OS_LINUX)
1199	/* signal to the thread that it is supposed to exit */
1200	pState->bTerminate = true;
1201	/* wait for it to terminate */
1202	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1203	AssertRC(rc);
1204	XCloseDisplay(pState->display);
1205	#endif
1206
1207	RTStrFree(pState->pszExtensions);
1208	pState->pszExtensions = NULL;
1209	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1210	RTStrFree(pState->pszOtherExtensions);
1211	#endif
1212	pState->pszOtherExtensions = NULL;
1213
1214	return VINF_SUCCESS;
1215	}
1216
1217
1218	static void vmsvga3dBackUpdateHostScreenViewport(PVGASTATECC pThisCC, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1219	{
1220	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1221	* redraw it. */
1222
1223	#ifdef RT_OS_DARWIN
1224	RT_NOREF(pOldViewport);
1225	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1226	if ( pState
1227	&& idScreen == 0
1228	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1229	{
1230	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1231	}
1232	#else
1233	RT_NOREF(pThisCC, idScreen, pOldViewport);
1234	#endif
1235	}
1236
1237
1238	/**
1239	* Worker for vmsvga3dBackQueryCaps that figures out supported operations for a
1240	* given surface format capability.
1241	*
1242	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1243	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1244	*
1245	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1246	* of implicit guest expectations:
1247	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1248	*/
1249	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1250	{
1251	uint32_t result = 0;
1252
1253	/** @todo missing:
1254	*
1255	* SVGA3DFORMAT_OP_PIXELSIZE
1256	*/
1257
1258	switch (idx3dCaps)
1259	{
1260	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1261	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1262	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1263	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1264	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1265	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1266	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1267	break;
1268
1269	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1270	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1271	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1272	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1273	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1274	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1275	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1276	break;
1277	}
1278
1279	/** @todo check hardware caps! */
1280	switch (idx3dCaps)
1281	{
1282	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1283	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1284	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1285	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1286	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1287	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1288	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1289	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1290	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1291	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1292	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1293	result \|= SVGA3DFORMAT_OP_TEXTURE
1294	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1295	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1296	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1297	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1298	\| SVGA3DFORMAT_OP_CUBETEXTURE
1299	\| SVGA3DFORMAT_OP_SRGBREAD
1300	\| SVGA3DFORMAT_OP_SRGBWRITE;
1301	break;
1302
1303	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1304	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1305	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1306	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1307	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1308	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1309	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1310	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1311	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1312	break;
1313
1314	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1315	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1316	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1317	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1318	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1319	result \|= SVGA3DFORMAT_OP_TEXTURE
1320	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1321	\| SVGA3DFORMAT_OP_CUBETEXTURE
1322	\| SVGA3DFORMAT_OP_SRGBREAD;
1323	break;
1324
1325	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1326	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1327	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1328	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1329	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1330	break;
1331
1332	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1333	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1334	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1335	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1336	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1337	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1338	result \|= SVGA3DFORMAT_OP_TEXTURE
1339	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1340	\| SVGA3DFORMAT_OP_CUBETEXTURE
1341	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1342	break;
1343
1344	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1345	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1346	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1347	result \|= SVGA3DFORMAT_OP_TEXTURE
1348	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1349	\| SVGA3DFORMAT_OP_CUBETEXTURE
1350	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1351	break;
1352
1353	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1354	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1355	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1356	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1357	\| SVGA3DFORMAT_OP_TEXTURE;
1358	break;
1359
1360	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1361	case SVGA3D_DEVCAP_DEAD10: /* SVGA3D_DEVCAP_SURFACEFMT_AYUV */
1362	break;
1363	}
1364	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1365
1366	return result;
1367	}
1368
1369	#if 0 /* unused */
1370	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1371	{
1372	RT_NOREF(pState3D, idx3dCaps);
1373
1374	/** @todo test this somehow */
1375	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1376
1377	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1378	return result;
1379	}
1380	#endif
1381
1382
1383	static int vmsvga3dBackQueryCaps(PVGASTATECC pThisCC, SVGA3dDevCapIndex idx3dCaps, uint32_t *pu32Val)
1384	{
1385	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1386	AssertReturn(pState, VERR_NO_MEMORY);
1387	int rc = VINF_SUCCESS;
1388
1389	*pu32Val = 0;
1390
1391	/*
1392	* The capabilities access by current (2015-03-01) linux sources (gallium,
1393	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1394	* aren't access.
1395	*/
1396
1397	switch (idx3dCaps)
1398	{
1399	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1400	case SVGA3D_DEVCAP_3D:
1401	pu32Val = 1; / boolean? */
1402	break;
1403
1404	case SVGA3D_DEVCAP_MAX_LIGHTS:
1405	*pu32Val = pState->caps.maxActiveLights;
1406	break;
1407
1408	case SVGA3D_DEVCAP_MAX_TEXTURES:
1409	*pu32Val = pState->caps.maxTextures;
1410	break;
1411
1412	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1413	*pu32Val = pState->caps.maxClipDistances;
1414	break;
1415
1416	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1417	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1418	*pu32Val = pState->caps.vertexShaderVersion;
1419	break;
1420
1421	case SVGA3D_DEVCAP_VERTEX_SHADER:
1422	/* boolean? */
1423	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1424	break;
1425
1426	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1427	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1428	*pu32Val = pState->caps.fragmentShaderVersion;
1429	break;
1430
1431	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1432	/* boolean? */
1433	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1434	break;
1435
1436	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1437	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1438	/* Must be obsolete by now; surface format caps specify the same thing. */
1439	rc = VERR_INVALID_PARAMETER;
1440	break;
1441
1442	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1443	break;
1444
1445	/*
1446	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1447	* return TRUE. Even on physical hardware that does not support
1448	* these formats natively, the SVGA3D device will provide an emulation
1449	* which should be invisible to the guest OS.
1450	*/
1451	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1452	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1453	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1454	*pu32Val = 1;
1455	break;
1456
1457	case SVGA3D_DEVCAP_QUERY_TYPES:
1458	break;
1459
1460	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1461	break;
1462
1463	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1464	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1465	AssertCompile(sizeof(uint32_t) == sizeof(float));
1466	(float )pu32Val = pState->caps.flPointSize[1];
1467	break;
1468
1469	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1470	/** @todo ?? */
1471	rc = VERR_INVALID_PARAMETER;
1472	break;
1473
1474	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1475	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1476	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1477	*pu32Val = pState->caps.maxRectangleTextureSize;
1478	break;
1479
1480	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1481	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1482	//*pu32Val = pCaps->MaxVolumeExtent;
1483	*pu32Val = 256;
1484	break;
1485
1486	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1487	pu32Val = 32768; / hardcoded in Wine */
1488	break;
1489
1490	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1491	//*pu32Val = pCaps->MaxTextureAspectRatio;
1492	break;
1493
1494	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1495	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1496	*pu32Val = pState->caps.maxTextureAnisotropy;
1497	break;
1498
1499	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1500	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1501	pu32Val = 0xFFFFF; / hardcoded in Wine */
1502	break;
1503
1504	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1505	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1506	*pu32Val = pState->caps.maxVertexShaderInstructions;
1507	break;
1508
1509	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1510	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1511	break;
1512
1513	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1514	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1515	*pu32Val = pState->caps.maxVertexShaderTemps;
1516	break;
1517
1518	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1519	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1520	*pu32Val = pState->caps.maxFragmentShaderTemps;
1521	break;
1522
1523	case SVGA3D_DEVCAP_TEXTURE_OPS:
1524	break;
1525
1526	case SVGA3D_DEVCAP_DEAD4: /* SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES */
1527	break;
1528
1529	case SVGA3D_DEVCAP_DEAD5: /* SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES */
1530	break;
1531
1532	case SVGA3D_DEVCAP_DEAD7: /* SVGA3D_DEVCAP_ALPHATOCOVERAGE */
1533	break;
1534
1535	case SVGA3D_DEVCAP_DEAD6: /* SVGA3D_DEVCAP_SUPERSAMPLE */
1536	break;
1537
1538	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1539	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1540	break;
1541
1542	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1543	break;
1544
1545	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1546	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1547	*pu32Val = pState->caps.maxColorAttachments;
1548	break;
1549
1550	/*
1551	* This is the maximum number of SVGA context IDs that the guest
1552	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1553	*/
1554	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1555	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1556	break;
1557
1558	/*
1559	* This is the maximum number of SVGA surface IDs that the guest
1560	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1561	*/
1562	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1563	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1564	break;
1565
1566	#if 0 /* Appeared more recently, not yet implemented. */
1567	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1568	case SVGA3D_DEVCAP_LINE_AA:
1569	break;
1570	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1571	case SVGA3D_DEVCAP_LINE_STIPPLE:
1572	break;
1573	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1574	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1575	break;
1576	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1577	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1578	break;
1579	#endif
1580
1581	/*
1582	* Supported surface formats.
1583	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1584	*/
1585	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1586	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1587	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1588	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1589	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1590	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1591	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1592	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1593	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1594	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1595	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1596	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1597	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1598	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1599	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1600	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1601	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1602	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1603	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1604	break;
1605
1606	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1607	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1608	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1609	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1610	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1611	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1612	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1613	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1614	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1615	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1616	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1617	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1618	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1619	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1620	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1621	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1622	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1623	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1624	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1625	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1626	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1627	case SVGA3D_DEVCAP_DEAD10: /* SVGA3D_DEVCAP_SURFACEFMT_AYUV */
1628	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1629	break;
1630
1631	/* Linux: Not referenced in current sources. */
1632	case SVGA3D_DEVCAP_SURFACEFMT_ATI1:
1633	case SVGA3D_DEVCAP_SURFACEFMT_ATI2:
1634	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1635	rc = VERR_INVALID_PARAMETER;
1636	*pu32Val = 0;
1637	break;
1638
1639	default:
1640	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1641	rc = VERR_INVALID_PARAMETER;
1642	break;
1643	}
1644
1645	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1646	return rc;
1647	}
1648
1649	/**
1650	* Convert SVGA format value to its OpenGL equivalent
1651	*
1652	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1653	* help from wined3dformat_from_d3dformat().
1654	*/
1655	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1656	{
1657	#if 0
1658	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1659	#else
1660	#define AssertTestFmt(f) do {} while(0)
1661	#endif
1662	/* Init cbBlockGL for non-emulated formats. */
1663	pSurface->cbBlockGL = pSurface->cbBlock;
1664
1665	switch (format)
1666	{
1667	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1668	pSurface->internalFormatGL = GL_RGB8;
1669	pSurface->formatGL = GL_BGRA;
1670	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1671	break;
1672	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1673	pSurface->internalFormatGL = GL_RGBA8;
1674	pSurface->formatGL = GL_BGRA;
1675	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1676	break;
1677	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1678	pSurface->internalFormatGL = GL_RGB5;
1679	pSurface->formatGL = GL_RGB;
1680	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1681	AssertTestFmt(SVGA3D_R5G6B5);
1682	break;
1683	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1684	pSurface->internalFormatGL = GL_RGB5;
1685	pSurface->formatGL = GL_BGRA;
1686	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1687	AssertTestFmt(SVGA3D_X1R5G5B5);
1688	break;
1689	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1690	pSurface->internalFormatGL = GL_RGB5_A1;
1691	pSurface->formatGL = GL_BGRA;
1692	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1693	AssertTestFmt(SVGA3D_A1R5G5B5);
1694	break;
1695	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1696	pSurface->internalFormatGL = GL_RGBA4;
1697	pSurface->formatGL = GL_BGRA;
1698	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1699	AssertTestFmt(SVGA3D_A4R4G4B4);
1700	break;
1701
1702	case SVGA3D_R8G8B8A8_UNORM:
1703	pSurface->internalFormatGL = GL_RGBA8;
1704	pSurface->formatGL = GL_RGBA;
1705	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1706	break;
1707
1708	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1709	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1710	pSurface->formatGL = GL_DEPTH_COMPONENT;
1711	pSurface->typeGL = GL_UNSIGNED_INT;
1712	break;
1713	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1714	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1715	pSurface->formatGL = GL_DEPTH_COMPONENT;
1716	pSurface->typeGL = GL_UNSIGNED_SHORT;
1717	AssertTestFmt(SVGA3D_Z_D16);
1718	break;
1719	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1720	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1721	pSurface->formatGL = GL_DEPTH_STENCIL;
1722	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1723	break;
1724	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1725	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1726	pSurface->formatGL = GL_DEPTH_STENCIL;
1727	pSurface->typeGL = GL_UNSIGNED_SHORT;
1728	/** @todo Wine sources hints at no hw support for this, so test this one! */
1729	AssertTestFmt(SVGA3D_Z_D15S1);
1730	break;
1731	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1732	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1733	pSurface->formatGL = GL_DEPTH_COMPONENT;
1734	pSurface->typeGL = GL_UNSIGNED_INT;
1735	AssertTestFmt(SVGA3D_Z_D24X8);
1736	break;
1737
1738	/* Advanced D3D9 depth formats. */
1739	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1740	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1741	pSurface->formatGL = GL_DEPTH_COMPONENT;
1742	pSurface->typeGL = GL_HALF_FLOAT;
1743	break;
1744
1745	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1746	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1747	pSurface->formatGL = GL_DEPTH_COMPONENT;
1748	pSurface->typeGL = GL_FLOAT; /* ??? */
1749	break;
1750
1751	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1752	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1753	pSurface->formatGL = GL_DEPTH_STENCIL;
1754	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1755	break;
1756
1757	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1758	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1759	pSurface->formatGL = GL_RGBA; /* not used */
1760	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1761	break;
1762
1763	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1764	/* "DXT2 and DXT3 are the same from an API perspective." */
1765	RT_FALL_THRU();
1766	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1767	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1768	pSurface->formatGL = GL_RGBA; /* not used */
1769	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1770	break;
1771
1772	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1773	/* "DXT4 and DXT5 are the same from an API perspective." */
1774	RT_FALL_THRU();
1775	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1776	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1777	pSurface->formatGL = GL_RGBA; /* not used */
1778	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1779	break;
1780
1781	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1782	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1783	pSurface->formatGL = GL_LUMINANCE;
1784	pSurface->typeGL = GL_UNSIGNED_BYTE;
1785	break;
1786
1787	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1788	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1789	pSurface->formatGL = GL_LUMINANCE;
1790	pSurface->typeGL = GL_UNSIGNED_SHORT;
1791	break;
1792
1793	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1794	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1795	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1796	pSurface->typeGL = GL_UNSIGNED_BYTE;
1797	break;
1798
1799	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1800	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1801	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1802	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1803	break;
1804
1805	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1806	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1807	pSurface->formatGL = GL_ALPHA;
1808	pSurface->typeGL = GL_UNSIGNED_BYTE;
1809	break;
1810
1811	#if 0
1812
1813	/* Bump-map formats */
1814	case SVGA3D_BUMPU8V8:
1815	return D3DFMT_V8U8;
1816	case SVGA3D_BUMPL6V5U5:
1817	return D3DFMT_L6V5U5;
1818	case SVGA3D_BUMPX8L8V8U8:
1819	return D3DFMT_X8L8V8U8;
1820	case SVGA3D_FORMAT_DEAD1:
1821	/* No corresponding D3D9 equivalent. */
1822	AssertFailedReturn(D3DFMT_UNKNOWN);
1823	/* signed bump-map formats */
1824	case SVGA3D_V8U8:
1825	return D3DFMT_V8U8;
1826	case SVGA3D_Q8W8V8U8:
1827	return D3DFMT_Q8W8V8U8;
1828	case SVGA3D_CxV8U8:
1829	return D3DFMT_CxV8U8;
1830	/* mixed bump-map formats */
1831	case SVGA3D_X8L8V8U8:
1832	return D3DFMT_X8L8V8U8;
1833	case SVGA3D_A2W10V10U10:
1834	return D3DFMT_A2W10V10U10;
1835	#endif
1836
1837	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1838	pSurface->internalFormatGL = GL_RGBA16F;
1839	pSurface->formatGL = GL_RGBA;
1840	#if 0 /* bird: wine uses half float, sounds correct to me... */
1841	pSurface->typeGL = GL_FLOAT;
1842	#else
1843	pSurface->typeGL = GL_HALF_FLOAT;
1844	AssertTestFmt(SVGA3D_ARGB_S10E5);
1845	#endif
1846	break;
1847
1848	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1849	pSurface->internalFormatGL = GL_RGBA32F;
1850	pSurface->formatGL = GL_RGBA;
1851	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1852	break;
1853
1854	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1855	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1856	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1857	pSurface->formatGL = GL_RGBA;
1858	#else
1859	pSurface->formatGL = GL_BGRA;
1860	#endif
1861	pSurface->typeGL = GL_UNSIGNED_INT;
1862	AssertTestFmt(SVGA3D_A2R10G10B10);
1863	break;
1864
1865
1866	/* Single- and dual-component floating point formats */
1867	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1868	pSurface->internalFormatGL = GL_R16F;
1869	pSurface->formatGL = GL_RED;
1870	#if 0 /* bird: wine uses half float, sounds correct to me... */
1871	pSurface->typeGL = GL_FLOAT;
1872	#else
1873	pSurface->typeGL = GL_HALF_FLOAT;
1874	AssertTestFmt(SVGA3D_R_S10E5);
1875	#endif
1876	break;
1877	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1878	pSurface->internalFormatGL = GL_R32F;
1879	pSurface->formatGL = GL_RED;
1880	pSurface->typeGL = GL_FLOAT;
1881	break;
1882	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1883	pSurface->internalFormatGL = GL_RG16F;
1884	pSurface->formatGL = GL_RG;
1885	#if 0 /* bird: wine uses half float, sounds correct to me... */
1886	pSurface->typeGL = GL_FLOAT;
1887	#else
1888	pSurface->typeGL = GL_HALF_FLOAT;
1889	AssertTestFmt(SVGA3D_RG_S10E5);
1890	#endif
1891	break;
1892	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1893	pSurface->internalFormatGL = GL_RG32F;
1894	pSurface->formatGL = GL_RG;
1895	pSurface->typeGL = GL_FLOAT;
1896	break;
1897
1898	/*
1899	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1900	* the most efficient format to use when creating new surfaces
1901	* expressly for index or vertex data.
1902	*/
1903	case SVGA3D_BUFFER:
1904	pSurface->internalFormatGL = -1;
1905	pSurface->formatGL = -1;
1906	pSurface->typeGL = -1;
1907	break;
1908
1909	#if 0
1910	return D3DFMT_UNKNOWN;
1911
1912	case SVGA3D_V16U16:
1913	return D3DFMT_V16U16;
1914	#endif
1915
1916	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1917	pSurface->internalFormatGL = GL_RG16;
1918	pSurface->formatGL = GL_RG;
1919	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1920	pSurface->typeGL = GL_UNSIGNED_INT;
1921	#else
1922	pSurface->typeGL = GL_UNSIGNED_SHORT;
1923	AssertTestFmt(SVGA3D_G16R16);
1924	#endif
1925	break;
1926
1927	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1928	pSurface->internalFormatGL = GL_RGBA16;
1929	pSurface->formatGL = GL_RGBA;
1930	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1931	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1932	#else
1933	pSurface->typeGL = GL_UNSIGNED_SHORT;
1934	AssertTestFmt(SVGA3D_A16B16G16R16);
1935	#endif
1936	break;
1937
1938	case SVGA3D_R8G8B8A8_SNORM:
1939	pSurface->internalFormatGL = GL_RGB8;
1940	pSurface->formatGL = GL_BGRA;
1941	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1942	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1943	break;
1944	case SVGA3D_R16G16_UNORM:
1945	pSurface->internalFormatGL = GL_RG16;
1946	pSurface->formatGL = GL_RG;
1947	pSurface->typeGL = GL_UNSIGNED_SHORT;
1948	AssertTestFmt(SVGA3D_R16G16_UNORM);
1949	break;
1950
1951	/* Packed Video formats */
1952	case SVGA3D_UYVY:
1953	case SVGA3D_YUY2:
1954	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1955	pSurface->fEmulated = true;
1956	pSurface->internalFormatGL = GL_RGBA8;
1957	pSurface->formatGL = GL_BGRA;
1958	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1959	pSurface->cbBlockGL = 4 * pSurface->cxBlock * pSurface->cyBlock;
1960	break;
1961
1962	#if 0
1963	/* Planar video formats */
1964	case SVGA3D_NV12:
1965	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1966
1967	/* Video format with alpha */
1968	case SVGA3D_FORMAT_DEAD2: /* Old SVGA3D_AYUV */
1969
1970	case SVGA3D_ATI1:
1971	case SVGA3D_ATI2:
1972	/* Unknown; only in DX10 & 11 */
1973	break;
1974	#endif
1975	default:
1976	AssertMsgFailed(("Unsupported format %d\n", format));
1977	break;
1978	}
1979	#undef AssertTestFmt
1980	}
1981
1982
1983	#if 0
1984	/**
1985	* Convert SVGA multi sample count value to its D3D equivalent
1986	*/
1987	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1988	{
1989	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1990	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1991
1992	if (multisampleCount > 16)
1993	return D3DMULTISAMPLE_NONE;
1994
1995	/** @todo exact same mapping as d3d? */
1996	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1997	}
1998	#endif
1999
2000	/**
2001	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
2002	*
2003	* @param pThisCC The device state.
2004	* @param pSurface The surface being destroyed.
2005	*/
2006	static void vmsvga3dBackSurfaceDestroy(PVGASTATECC pThisCC, PVMSVGA3DSURFACE pSurface)
2007	{
2008	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
2009	AssertReturnVoid(pState);
2010
2011	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2012	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2013
2014	switch (pSurface->enmOGLResType)
2015	{
2016	case VMSVGA3D_OGLRESTYPE_BUFFER:
2017	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
2018	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2019	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2020	break;
2021
2022	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2023	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
2024	glDeleteTextures(1, &pSurface->oglId.texture);
2025	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2026	if (pSurface->fEmulated)
2027	{
2028	if (pSurface->idEmulated)
2029	{
2030	glDeleteTextures(1, &pSurface->idEmulated);
2031	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2032	}
2033	}
2034	else
2035	{
2036	Assert(!pSurface->idEmulated);
2037	}
2038	break;
2039
2040	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2041	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2042	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2043	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2044	break;
2045
2046	default:
2047	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2048	("hint=%#x, type=%d\n",
2049	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2050	break;
2051	}
2052	}
2053
2054
2055	static int vmsvga3dBackSurfaceCopy(PVGASTATECC pThisCC, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src,
2056	uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2057	{
2058	int rc;
2059
2060	LogFunc(("Copy %d boxes from sid=%u face=%u mipmap=%u to sid=%u face=%u mipmap=%u\n",
2061	cCopyBoxes, src.sid, src.face, src.mipmap, dest.sid, dest.face, dest.mipmap));
2062
2063	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
2064	AssertReturn(pState, VERR_INVALID_STATE);
2065
2066	PVMSVGA3DSURFACE pSurfaceSrc;
2067	rc = vmsvga3dSurfaceFromSid(pState, src.sid, &pSurfaceSrc);
2068	AssertRCReturn(rc, rc);
2069
2070	PVMSVGA3DSURFACE pSurfaceDst;
2071	rc = vmsvga3dSurfaceFromSid(pState, dest.sid, &pSurfaceDst);
2072	AssertRCReturn(rc, rc);
2073
2074	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceSrc))
2075	{
2076	/* The source surface is still in memory. */
2077	PVMSVGA3DMIPMAPLEVEL pMipmapLevelSrc;
2078	rc = vmsvga3dMipmapLevel(pSurfaceSrc, src.face, src.mipmap, &pMipmapLevelSrc);
2079	AssertRCReturn(rc, rc);
2080
2081	PVMSVGA3DMIPMAPLEVEL pMipmapLevelDst;
2082	rc = vmsvga3dMipmapLevel(pSurfaceDst, dest.face, dest.mipmap, &pMipmapLevelDst);
2083	AssertRCReturn(rc, rc);
2084
2085	/* The copy operation is performed on the shared context. */
2086	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2087	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2088
2089	/* Use glTexSubImage to upload the data to the destination texture.
2090	* The latter must be an OpenGL texture.
2091	*/
2092	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceDst))
2093	{
2094	LogFunc(("dest sid=%u type=0x%x format=%d -> create texture\n", dest.sid, pSurfaceDst->surfaceFlags, pSurfaceDst->format));
2095	rc = vmsvga3dBackCreateTexture(pThisCC, pContext, pContext->id, pSurfaceDst);
2096	AssertRCReturn(rc, rc);
2097	}
2098
2099	GLenum target;
2100	if (pSurfaceDst->targetGL == GL_TEXTURE_CUBE_MAP)
2101	target = vmsvga3dCubemapFaceFromIndex(dest.face);
2102	else
2103	{
2104	AssertMsg(pSurfaceDst->targetGL == GL_TEXTURE_2D, ("Test %#x\n", pSurfaceDst->targetGL));
2105	target = pSurfaceDst->targetGL;
2106	}
2107
2108	/* Save the unpacking parameters and set what we need here. */
2109	VMSVGAPACKPARAMS SavedParams;
2110	vmsvga3dOglSetUnpackParams(pState, pContext,
2111	pMipmapLevelSrc->mipmapSize.width,
2112	target == GL_TEXTURE_3D ? pMipmapLevelSrc->mipmapSize.height : 0,
2113	&SavedParams);
2114
2115	glBindTexture(pSurfaceDst->targetGL, pSurfaceDst->oglId.texture);
2116	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2117
2118	for (uint32_t i = 0; i < cCopyBoxes; ++i)
2119	{
2120	SVGA3dCopyBox clipBox = pBox[i];
2121	vmsvgaR3ClipCopyBox(&pMipmapLevelSrc->mipmapSize, &pMipmapLevelDst->mipmapSize, &clipBox);
2122	if ( !clipBox.w
2123	\|\| !clipBox.h
2124	\|\| !clipBox.d)
2125	{
2126	LogFunc(("Skipped empty box.\n"));
2127	continue;
2128	}
2129
2130	LogFunc(("copy box %d,%d,%d %dx%d to %d,%d,%d\n",
2131	clipBox.srcx, clipBox.srcy, clipBox.srcz, clipBox.w, clipBox.h, clipBox.x, clipBox.y, clipBox.z));
2132
2133	uint32_t const u32BlockX = clipBox.srcx / pSurfaceSrc->cxBlock;
2134	uint32_t const u32BlockY = clipBox.srcy / pSurfaceSrc->cyBlock;
2135	uint32_t const u32BlockZ = clipBox.srcz;
2136	Assert(u32BlockX * pSurfaceSrc->cxBlock == clipBox.srcx);
2137	Assert(u32BlockY * pSurfaceSrc->cyBlock == clipBox.srcy);
2138
2139	uint8_t const pSrcBits = (uint8_t )pMipmapLevelSrc->pSurfaceData
2140	+ pMipmapLevelSrc->cbSurfacePlane * u32BlockZ
2141	+ pMipmapLevelSrc->cbSurfacePitch * u32BlockY
2142	+ pSurfaceSrc->cbBlock * u32BlockX;
2143
2144	if (target == GL_TEXTURE_3D)
2145	{
2146	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2147	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2148	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2149	{
2150	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2151	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2152	uint32_t const imageSize = cBlocksX * cBlocksY * clipBox.d * pSurfaceSrc->cbBlock;
2153	pState->ext.glCompressedTexSubImage3D(target, dest.mipmap,
2154	clipBox.x, clipBox.y, clipBox.z,
2155	clipBox.w, clipBox.h, clipBox.d,
2156	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2157	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2158	}
2159	else
2160	{
2161	pState->ext.glTexSubImage3D(target, dest.mipmap,
2162	clipBox.x, clipBox.y, clipBox.z,
2163	clipBox.w, clipBox.h, clipBox.d,
2164	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2165	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2166	}
2167	}
2168	else
2169	{
2170	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2171	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2172	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2173	{
2174	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2175	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2176	uint32_t const imageSize = cBlocksX * cBlocksY * pSurfaceSrc->cbBlock;
2177	pState->ext.glCompressedTexSubImage2D(target, dest.mipmap,
2178	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2179	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2180	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2181	}
2182	else
2183	{
2184	glTexSubImage2D(target, dest.mipmap,
2185	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2186	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2187	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2188	}
2189	}
2190	}
2191
2192	glBindTexture(pSurfaceDst->targetGL, 0);
2193	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2194
2195	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2196
2197	return VINF_SUCCESS;
2198	}
2199
2200	PVGASTATE pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVGASTATE);
2201	for (uint32_t i = 0; i < cCopyBoxes; i++)
2202	{
2203	SVGA3dBox destBox, srcBox;
2204
2205	srcBox.x = pBox[i].srcx;
2206	srcBox.y = pBox[i].srcy;
2207	srcBox.z = pBox[i].srcz;
2208	srcBox.w = pBox[i].w;
2209	srcBox.h = pBox[i].h;
2210	srcBox.d = pBox[i].d;
2211
2212	destBox.x = pBox[i].x;
2213	destBox.y = pBox[i].y;
2214	destBox.z = pBox[i].z;
2215	destBox.w = pBox[i].w;
2216	destBox.h = pBox[i].h;
2217	destBox.d = pBox[i].d;
2218
2219	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2220	rc = vmsvga3dSurfaceStretchBlt(pThis, pThisCC, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2221	AssertRCReturn(rc, rc);
2222	}
2223	return VINF_SUCCESS;
2224	}
2225
2226
2227	/**
2228	* Saves texture unpacking parameters and loads the specified ones.
2229	*
2230	* @param pState The VMSVGA3D state structure.
2231	* @param pContext The active context.
2232	* @param cxRow The number of pixels in a row. 0 for the entire width.
2233	* @param cyImage The height of the image in pixels. 0 for the entire height.
2234	* @param pSave Where to save stuff.
2235	*/
2236	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, GLint cxRow, GLint cyImage,
2237	PVMSVGAPACKPARAMS pSave)
2238	{
2239	RT_NOREF(pState);
2240
2241	/*
2242	* Save (ignore errors, setting the defaults we want and avoids restore).
2243	*/
2244	pSave->iAlignment = 1;
2245	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2246	pSave->cxRow = 0;
2247	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2248	pSave->cyImage = 0;
2249	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage), pState, pContext);
2250
2251	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2252	pSave->fSwapBytes = GL_FALSE;
2253	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2254	Assert(pSave->fSwapBytes == GL_FALSE);
2255
2256	pSave->fLsbFirst = GL_FALSE;
2257	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2258	Assert(pSave->fLsbFirst == GL_FALSE);
2259
2260	pSave->cSkipRows = 0;
2261	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2262	Assert(pSave->cSkipRows == 0);
2263
2264	pSave->cSkipPixels = 0;
2265	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2266	Assert(pSave->cSkipPixels == 0);
2267
2268	pSave->cSkipImages = 0;
2269	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2270	Assert(pSave->cSkipImages == 0);
2271
2272	VMSVGA3D_CLEAR_GL_ERRORS();
2273	#endif
2274
2275	/*
2276	* Setup unpack.
2277	*
2278	* Note! We use 1 as alignment here because we currently don't do any
2279	* aligning of line pitches anywhere.
2280	*/
2281	pSave->fChanged = 0;
2282	if (pSave->iAlignment != 1)
2283	{
2284	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2285	pSave->fChanged \|= VMSVGAPACKPARAMS_ALIGNMENT;
2286	}
2287	if (pSave->cxRow != cxRow)
2288	{
2289	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, cxRow), pState, pContext);
2290	pSave->fChanged \|= VMSVGAPACKPARAMS_ROW_LENGTH;
2291	}
2292	if (pSave->cyImage != cyImage)
2293	{
2294	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, cyImage), pState, pContext);
2295	pSave->fChanged \|= VMSVGAPACKPARAMS_IMAGE_HEIGHT;
2296	}
2297	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2298	if (pSave->fSwapBytes != 0)
2299	{
2300	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2301	pSave->fChanged \|= VMSVGAPACKPARAMS_SWAP_BYTES;
2302	}
2303	if (pSave->fLsbFirst != 0)
2304	{
2305	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2306	pSave->fChanged \|= VMSVGAPACKPARAMS_LSB_FIRST;
2307	}
2308	if (pSave->cSkipRows != 0)
2309	{
2310	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2311	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_ROWS;
2312	}
2313	if (pSave->cSkipPixels != 0)
2314	{
2315	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2316	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_PIXELS;
2317	}
2318	if (pSave->cSkipImages != 0)
2319	{
2320	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2321	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_IMAGES;
2322	}
2323	#endif
2324	}
2325
2326
2327	/**
2328	* Restores texture unpacking parameters.
2329	*
2330	* @param pState The VMSVGA3D state structure.
2331	* @param pContext The active context.
2332	* @param pSave Where stuff was saved.
2333	*/
2334	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext,
2335	PCVMSVGAPACKPARAMS pSave)
2336	{
2337	RT_NOREF(pState);
2338
2339	if (pSave->fChanged & VMSVGAPACKPARAMS_ALIGNMENT)
2340	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2341	if (pSave->fChanged & VMSVGAPACKPARAMS_ROW_LENGTH)
2342	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2343	if (pSave->fChanged & VMSVGAPACKPARAMS_IMAGE_HEIGHT)
2344	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2345	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2346	if (pSave->fChanged & VMSVGAPACKPARAMS_SWAP_BYTES)
2347	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2348	if (pSave->fChanged & VMSVGAPACKPARAMS_LSB_FIRST)
2349	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2350	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_ROWS)
2351	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2352	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_PIXELS)
2353	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2354	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_IMAGES)
2355	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2356	#endif
2357	}
2358
2359	/**
2360	* Create D3D/OpenGL texture object for the specified surface.
2361	*
2362	* Surfaces are created when needed.
2363	*
2364	* @param pThisCC The device context.
2365	* @param pContext The context.
2366	* @param idAssociatedContext Probably the same as pContext->id.
2367	* @param pSurface The surface to create the texture for.
2368	*/
2369	static int vmsvga3dBackCreateTexture(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2370	PVMSVGA3DSURFACE pSurface)
2371	{
2372	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
2373
2374	RT_NOREF(idAssociatedContext);
2375
2376	LogFunc(("sid=%u\n", pSurface->id));
2377
2378	uint32_t const numMipLevels = pSurface->cLevels;
2379
2380	/* Fugure out what kind of texture we are creating. */
2381	GLenum binding;
2382	GLenum target;
2383	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2384	{
2385	Assert(pSurface->cFaces == 6);
2386
2387	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2388	target = GL_TEXTURE_CUBE_MAP;
2389	}
2390	else
2391	{
2392	if (pSurface->paMipmapLevels[0].mipmapSize.depth > 1)
2393	{
2394	binding = GL_TEXTURE_BINDING_3D;
2395	target = GL_TEXTURE_3D;
2396	}
2397	else
2398	{
2399	Assert(pSurface->cFaces == 1);
2400
2401	binding = GL_TEXTURE_BINDING_2D;
2402	target = GL_TEXTURE_2D;
2403	}
2404	}
2405
2406	/* All textures are created in the SharedCtx. */
2407	uint32_t idPrevCtx = pState->idActiveContext;
2408	pContext = &pState->SharedCtx;
2409	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2410
2411	glGenTextures(1, &pSurface->oglId.texture);
2412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2413	if (pSurface->fEmulated)
2414	{
2415	glGenTextures(1, &pSurface->idEmulated);
2416	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2417	}
2418	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2419
2420	GLint activeTexture = 0;
2421	glGetIntegerv(binding, &activeTexture);
2422	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2423
2424	/* Must bind texture to the current context in order to change it. */
2425	glBindTexture(target, pSurface->oglId.texture);
2426	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2427
2428	/* Set the unpacking parameters. */
2429	VMSVGAPACKPARAMS SavedParams;
2430	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2431
2432	/** @todo Set the mip map generation filter settings. */
2433
2434	/* Set the mipmap base and max level parameters. */
2435	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2436	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2437	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->cLevels - 1);
2438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2439
2440	if (pSurface->fDirty)
2441	LogFunc(("sync dirty texture\n"));
2442
2443	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2444	if (target == GL_TEXTURE_3D)
2445	{
2446	for (uint32_t i = 0; i < numMipLevels; ++i)
2447	{
2448	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2449	* exposing random host memory to the guest and helps a with the fedora 21 surface
2450	* corruption issues (launchpad, background, search field, login).
2451	*/
2452	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2453
2454	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2455	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2456
2457	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2458	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2459	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2460	{
2461	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2462	i,
2463	pSurface->internalFormatGL,
2464	pMipLevel->mipmapSize.width,
2465	pMipLevel->mipmapSize.height,
2466	pMipLevel->mipmapSize.depth,
2467	0,
2468	pMipLevel->cbSurface,
2469	pMipLevel->pSurfaceData);
2470	}
2471	else
2472	{
2473	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2474	i,
2475	pSurface->internalFormatGL,
2476	pMipLevel->mipmapSize.width,
2477	pMipLevel->mipmapSize.height,
2478	pMipLevel->mipmapSize.depth,
2479	0, /* border */
2480	pSurface->formatGL,
2481	pSurface->typeGL,
2482	pMipLevel->pSurfaceData);
2483	}
2484	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2485
2486	pMipLevel->fDirty = false;
2487	}
2488	}
2489	else if (target == GL_TEXTURE_CUBE_MAP)
2490	{
2491	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2492	{
2493	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2494
2495	for (uint32_t i = 0; i < numMipLevels; ++i)
2496	{
2497	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[iFace * numMipLevels + i];
2498	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2499	Assert(pMipLevel->mipmapSize.depth == 1);
2500
2501	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2502	iFace, i, pMipLevel->fDirty));
2503
2504	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2505	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2506	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2507	{
2508	pState->ext.glCompressedTexImage2D(Face,
2509	i,
2510	pSurface->internalFormatGL,
2511	pMipLevel->mipmapSize.width,
2512	pMipLevel->mipmapSize.height,
2513	0,
2514	pMipLevel->cbSurface,
2515	pMipLevel->pSurfaceData);
2516	}
2517	else
2518	{
2519	glTexImage2D(Face,
2520	i,
2521	pSurface->internalFormatGL,
2522	pMipLevel->mipmapSize.width,
2523	pMipLevel->mipmapSize.height,
2524	0,
2525	pSurface->formatGL,
2526	pSurface->typeGL,
2527	pMipLevel->pSurfaceData);
2528	}
2529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2530
2531	pMipLevel->fDirty = false;
2532	}
2533	}
2534	}
2535	else if (target == GL_TEXTURE_2D)
2536	{
2537	for (uint32_t i = 0; i < numMipLevels; ++i)
2538	{
2539	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2540	* exposing random host memory to the guest and helps a with the fedora 21 surface
2541	* corruption issues (launchpad, background, search field, login).
2542	*/
2543	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2544	Assert(pMipLevel->mipmapSize.depth == 1);
2545
2546	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2547	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2548
2549	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2550	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2551	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2552	{
2553	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2554	i,
2555	pSurface->internalFormatGL,
2556	pMipLevel->mipmapSize.width,
2557	pMipLevel->mipmapSize.height,
2558	0,
2559	pMipLevel->cbSurface,
2560	pMipLevel->pSurfaceData);
2561	}
2562	else
2563	{
2564	glTexImage2D(GL_TEXTURE_2D,
2565	i,
2566	pSurface->internalFormatGL,
2567	pMipLevel->mipmapSize.width,
2568	pMipLevel->mipmapSize.height,
2569	0,
2570	pSurface->formatGL,
2571	pSurface->typeGL,
2572	NULL);
2573	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2574
2575	if (pSurface->fEmulated)
2576	{
2577	/* Bind the emulated texture and init it. */
2578	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2579	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2580
2581	glTexImage2D(GL_TEXTURE_2D,
2582	i,
2583	pSurface->internalFormatGL,
2584	pMipLevel->mipmapSize.width,
2585	pMipLevel->mipmapSize.height,
2586	0,
2587	pSurface->formatGL,
2588	pSurface->typeGL,
2589	NULL);
2590	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2591	}
2592
2593	/* Fetch texture data: either to the actual or to the emulated texture.
2594	* The pSurfaceData buffer may be smaller than the entire texture
2595	* for emulated formats, in which case only part of the texture is synched.
2596	*/
2597	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2598	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2599	glTexSubImage2D(GL_TEXTURE_2D,
2600	i,
2601	0,
2602	0,
2603	cBlocksX,
2604	cBlocksY,
2605	pSurface->formatGL,
2606	pSurface->typeGL,
2607	pMipLevel->pSurfaceData);
2608	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2609
2610	if (pSurface->fEmulated)
2611	{
2612	/* Update the actual texture using the format converter. */
2613	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2614
2615	/* Rebind the actual texture. */
2616	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2617	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2618	}
2619	}
2620	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2621
2622	pMipLevel->fDirty = false;
2623	}
2624	}
2625
2626	pSurface->fDirty = false;
2627
2628	/* Restore unpacking parameters. */
2629	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2630
2631	/* Restore the old active texture. */
2632	glBindTexture(target, activeTexture);
2633	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2634
2635	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2636	pSurface->targetGL = target;
2637	pSurface->bindingGL = binding;
2638
2639	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2640	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2641	return VINF_SUCCESS;
2642	}
2643
2644
2645	/**
2646	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2647	*
2648	* @returns VBox status code.
2649	* @param pThis The VGA device instance.
2650	* @param pState The VMSVGA3d state.
2651	* @param pDstSurface The destination host surface.
2652	* @param uDstFace The destination face (valid).
2653	* @param uDstMipmap The destination mipmap level (valid).
2654	* @param pDstBox The destination box.
2655	* @param pSrcSurface The source host surface.
2656	* @param uSrcFace The destination face (valid).
2657	* @param uSrcMipmap The source mimap level (valid).
2658	* @param pSrcBox The source box.
2659	* @param enmMode The strecht blt mode .
2660	* @param pContext The VMSVGA3d context (already current for OGL).
2661	*/
2662	static int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2663	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2664	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2665	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2666	{
2667	RT_NOREF(pThis);
2668
2669	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2670	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2671
2672	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2673	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2674	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2675	{
2676	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2677	glAttachment = GL_DEPTH_ATTACHMENT;
2678	glMask = GL_DEPTH_BUFFER_BIT;
2679	}
2680
2681	/* Activate the read and draw framebuffer objects. */
2682	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2683	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2684	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2685	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2686
2687	/* Bind the source and destination objects to the right place. */
2688	GLenum textarget;
2689	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2690	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2691	else
2692	{
2693	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2694	textarget = GL_TEXTURE_2D;
2695	}
2696	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2697	pSrcSurface->oglId.texture, uSrcMipmap);
2698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2699
2700	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2701	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2702	else
2703	{
2704	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2705	textarget = GL_TEXTURE_2D;
2706	}
2707	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2708	pDstSurface->oglId.texture, uDstMipmap);
2709	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2710
2711	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2712	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2713	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2714	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2715	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2716
2717	pState->ext.glBlitFramebuffer(pSrcBox->x,
2718	pSrcBox->y,
2719	pSrcBox->x + pSrcBox->w, /* exclusive. */
2720	pSrcBox->y + pSrcBox->h,
2721	pDstBox->x,
2722	pDstBox->y,
2723	pDstBox->x + pDstBox->w, /* exclusive. */
2724	pDstBox->y + pDstBox->h,
2725	glMask,
2726	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2727	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2728
2729	/* Reset the frame buffer association */
2730	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2731	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2732
2733	return VINF_SUCCESS;
2734	}
2735
2736	/**
2737	* Save texture packing parameters and loads those appropriate for the given
2738	* surface.
2739	*
2740	* @param pState The VMSVGA3D state structure.
2741	* @param pContext The active context.
2742	* @param pSurface The surface.
2743	* @param pSave Where to save stuff.
2744	*/
2745	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2746	PVMSVGAPACKPARAMS pSave)
2747	{
2748	RT_NOREF(pState);
2749	/*
2750	* Save (ignore errors, setting the defaults we want and avoids restore).
2751	*/
2752	pSave->iAlignment = 1;
2753	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2754	pSave->cxRow = 0;
2755	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2756
2757	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2758	pSave->cyImage = 0;
2759	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2760	Assert(pSave->cyImage == 0);
2761
2762	pSave->fSwapBytes = GL_FALSE;
2763	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2764	Assert(pSave->fSwapBytes == GL_FALSE);
2765
2766	pSave->fLsbFirst = GL_FALSE;
2767	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2768	Assert(pSave->fLsbFirst == GL_FALSE);
2769
2770	pSave->cSkipRows = 0;
2771	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2772	Assert(pSave->cSkipRows == 0);
2773
2774	pSave->cSkipPixels = 0;
2775	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2776	Assert(pSave->cSkipPixels == 0);
2777
2778	pSave->cSkipImages = 0;
2779	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2780	Assert(pSave->cSkipImages == 0);
2781
2782	VMSVGA3D_CLEAR_GL_ERRORS();
2783	#endif
2784
2785	/*
2786	* Setup unpack.
2787	*
2788	* Note! We use 1 as alignment here because we currently don't do any
2789	* aligning of line pitches anywhere.
2790	*/
2791	NOREF(pSurface);
2792	if (pSave->iAlignment != 1)
2793	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2794	if (pSave->cxRow != 0)
2795	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2796	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2797	if (pSave->cyImage != 0)
2798	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2799	if (pSave->fSwapBytes != 0)
2800	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2801	if (pSave->fLsbFirst != 0)
2802	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2803	if (pSave->cSkipRows != 0)
2804	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2805	if (pSave->cSkipPixels != 0)
2806	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2807	if (pSave->cSkipImages != 0)
2808	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2809	#endif
2810	}
2811
2812
2813	/**
2814	* Restores texture packing parameters.
2815	*
2816	* @param pState The VMSVGA3D state structure.
2817	* @param pContext The active context.
2818	* @param pSurface The surface.
2819	* @param pSave Where stuff was saved.
2820	*/
2821	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2822	PCVMSVGAPACKPARAMS pSave)
2823	{
2824	RT_NOREF(pState, pSurface);
2825	if (pSave->iAlignment != 1)
2826	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2827	if (pSave->cxRow != 0)
2828	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2829	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2830	if (pSave->cyImage != 0)
2831	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2832	if (pSave->fSwapBytes != 0)
2833	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2834	if (pSave->fLsbFirst != 0)
2835	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2836	if (pSave->cSkipRows != 0)
2837	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2838	if (pSave->cSkipPixels != 0)
2839	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2840	if (pSave->cSkipImages != 0)
2841	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2842	#endif
2843	}
2844
2845
2846	/**
2847	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2848	*
2849	* @returns Failure status code or @a rc.
2850	* @param pThis The shared VGA/VMSVGA instance data.
2851	* @param pThisCC The VGA/VMSVGA state for ring-3.
2852	* @param pState The VMSVGA3d state.
2853	* @param pSurface The host surface.
2854	* @param pMipLevel Mipmap level. The caller knows it already.
2855	* @param uHostFace The host face (valid).
2856	* @param uHostMipmap The host mipmap level (valid).
2857	* @param GuestPtr The guest pointer.
2858	* @param cbGuestPitch The guest pitch.
2859	* @param transfer The transfer direction.
2860	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2861	* @param pContext The context (for OpenGL).
2862	* @param rc The current rc for all boxes.
2863	* @param iBox The current box number (for Direct 3D).
2864	*/
2865	static int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVGASTATECC pThisCC, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2866	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2867	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2868	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2869	{
2870	RT_NOREF(iBox);
2871
2872	switch (pSurface->enmOGLResType)
2873	{
2874	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2875	{
2876	uint32_t cbSurfacePitch;
2877	uint8_t *pDoubleBuffer;
2878	uint64_t offHst;
2879
2880	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2881	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2882	uint32_t const u32HostZ = pBox->z;
2883	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2884	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2885
2886	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2887	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2888	uint32_t const u32GuestZ = pBox->srcz / pSurface->cyBlock;
2889	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2890	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2891
2892	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2893	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2894	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2895
2896	GLenum texImageTarget;
2897	if (pSurface->targetGL == GL_TEXTURE_3D)
2898	{
2899	texImageTarget = GL_TEXTURE_3D;
2900	}
2901	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2902	{
2903	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2904	}
2905	else
2906	{
2907	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2908	texImageTarget = GL_TEXTURE_2D;
2909	}
2910
2911	/* The buffer must be large enough to hold entire texture in the OpenGL format. */
2912	pDoubleBuffer = (uint8_t )RTMemAlloc(pSurface->cbBlockGL pMipLevel->cBlocks);
2913	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2914
2915	if (transfer == SVGA3D_READ_HOST_VRAM)
2916	{
2917	/* Read the entire texture to the double buffer. */
2918	GLint activeTexture;
2919
2920	/* Must bind texture to the current context in order to read it. */
2921	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2922	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2923
2924	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2925	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2926
2927	if (pSurface->fEmulated)
2928	{
2929	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2930	}
2931
2932	/* Set row length and alignment of the input data. */
2933	VMSVGAPACKPARAMS SavedParams;
2934	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2935
2936	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2937	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2938	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2939	{
2940	pState->ext.glGetCompressedTexImage(texImageTarget, uHostMipmap, pDoubleBuffer);
2941	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2942	}
2943	else
2944	{
2945	glGetTexImage(texImageTarget, uHostMipmap, pSurface->formatGL, pSurface->typeGL, pDoubleBuffer);
2946	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2947	}
2948
2949	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2950
2951	/* Restore the old active texture. */
2952	glBindTexture(pSurface->targetGL, activeTexture);
2953	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2954
2955	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch + u32HostZ * pMipLevel->cbSurfacePlane;
2956	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2957	}
2958	else
2959	{
2960	/* The buffer will contain only the copied rectangle. */
2961	offHst = 0;
2962	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2963	}
2964
2965	uint64_t offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch + u32GuestZ * cbGuestPitch * pMipLevel->mipmapSize.height;
2966
2967	for (uint32_t iPlane = 0; iPlane < pBox->d; ++iPlane)
2968	{
2969	AssertBreak(offHst < UINT32_MAX);
2970	AssertBreak(offGst < UINT32_MAX);
2971
2972	rc = vmsvgaR3GmrTransfer(pThis,
2973	pThisCC,
2974	transfer,
2975	pDoubleBuffer,
2976	pMipLevel->cbSurface,
2977	(uint32_t)offHst,
2978	cbSurfacePitch,
2979	GuestPtr,
2980	(uint32_t)offGst,
2981	cbGuestPitch,
2982	cBlocksX * pSurface->cbBlock,
2983	cBlocksY);
2984	AssertRC(rc);
2985
2986	offHst += pMipLevel->cbSurfacePlane;
2987	offGst += pMipLevel->mipmapSize.height * cbGuestPitch;
2988	}
2989
2990	/* Update the opengl surface data. */
2991	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2992	{
2993	GLint activeTexture = 0;
2994	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2995	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2996
2997	/* Must bind texture to the current context in order to change it. */
2998	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2999	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3000
3001	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
3002
3003	/* Set row length and alignment of the input data. */
3004	/* We do not need to set ROW_LENGTH to w here, because the image in pDoubleBuffer is tightly packed. */
3005	VMSVGAPACKPARAMS SavedParams;
3006	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
3007
3008	if (texImageTarget == GL_TEXTURE_3D)
3009	{
3010	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3011	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3012	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3013	{
3014	pState->ext.glCompressedTexSubImage3D(texImageTarget,
3015	uHostMipmap,
3016	pBox->x,
3017	pBox->y,
3018	pBox->z,
3019	pBox->w,
3020	pBox->h,
3021	pBox->d,
3022	pSurface->internalFormatGL,
3023	cbSurfacePitch * cBlocksY * pBox->d,
3024	pDoubleBuffer);
3025	}
3026	else
3027	{
3028	pState->ext.glTexSubImage3D(texImageTarget,
3029	uHostMipmap,
3030	u32HostBlockX,
3031	u32HostBlockY,
3032	pBox->z,
3033	cBlocksX,
3034	cBlocksY,
3035	pBox->d,
3036	pSurface->formatGL,
3037	pSurface->typeGL,
3038	pDoubleBuffer);
3039	}
3040	}
3041	else
3042	{
3043	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3044	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3045	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3046	{
3047	pState->ext.glCompressedTexSubImage2D(texImageTarget,
3048	uHostMipmap,
3049	pBox->x,
3050	pBox->y,
3051	pBox->w,
3052	pBox->h,
3053	pSurface->internalFormatGL,
3054	cbSurfacePitch * cBlocksY,
3055	pDoubleBuffer);
3056	}
3057	else
3058	{
3059	glTexSubImage2D(texImageTarget,
3060	uHostMipmap,
3061	u32HostBlockX,
3062	u32HostBlockY,
3063	cBlocksX,
3064	cBlocksY,
3065	pSurface->formatGL,
3066	pSurface->typeGL,
3067	pDoubleBuffer);
3068	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3069
3070	if (pSurface->fEmulated)
3071	{
3072	/* Convert the texture to the actual texture if necessary */
3073	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
3074	}
3075	}
3076	}
3077	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3078
3079	/* Restore old values. */
3080	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
3081
3082	/* Restore the old active texture. */
3083	glBindTexture(pSurface->targetGL, activeTexture);
3084	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3085	}
3086
3087	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
3088
3089	/* Free the double buffer. */
3090	RTMemFree(pDoubleBuffer);
3091	break;
3092	}
3093
3094	case VMSVGA3D_OGLRESTYPE_BUFFER:
3095	{
3096	/* Buffers are uncompressed. */
3097	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
3098
3099	/* Caller already clipped pBox and buffers are 1-dimensional. */
3100	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
3101
3102	VMSVGA3D_CLEAR_GL_ERRORS();
3103	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3104	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3105	{
3106	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3107	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3108	if (RT_LIKELY(pbData != NULL))
3109	{
3110	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3111	GLint cbStrictBufSize;
3112	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3113	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3114	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3115	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3116	#endif
3117	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
3118	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
3119	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
3120	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
3121
3122	/* The caller already copied the data to the pMipLevel->pSurfaceData buffer, see VMSVGA3DSURFACE_NEEDS_DATA. */
3123	uint32_t const offHst = pBox->x * pSurface->cbBlock;
3124	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
3125
3126	memcpy(pbData + offHst, (uint8_t *)pMipLevel->pSurfaceData + offHst, cbWidth);
3127
3128	Log4(("Buffer updated at [0x%x;0x%x):\n%.Rhxd\n", offHst, offHst + cbWidth, cbWidth, (uint8_t )pbData + offHst));
3129
3130	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3132	}
3133	else
3134	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3135	}
3136	else
3137	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3138	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3140	break;
3141	}
3142
3143	default:
3144	AssertFailed();
3145	break;
3146	}
3147
3148	return rc;
3149	}
3150
3151	static int vmsvga3dBackGenerateMipmaps(PVGASTATECC pThisCC, uint32_t sid, SVGA3dTextureFilter filter)
3152	{
3153	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3154	PVMSVGA3DSURFACE pSurface;
3155	int rc = VINF_SUCCESS;
3156	PVMSVGA3DCONTEXT pContext;
3157	uint32_t cid;
3158	GLint activeTexture = 0;
3159
3160	AssertReturn(pState, VERR_NO_MEMORY);
3161
3162	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
3163	AssertRCReturn(rc, rc);
3164
3165	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3166	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3167	pSurface->autogenFilter = filter;
3168
3169	LogFunc(("sid=%u filter=%d\n", sid, filter));
3170
3171	cid = SVGA3D_INVALID_ID;
3172	pContext = &pState->SharedCtx;
3173	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3174
3175	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3176	{
3177	/* Unknown surface type; turn it into a texture. */
3178	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
3179	rc = vmsvga3dBackCreateTexture(pThisCC, pContext, cid, pSurface);
3180	AssertRCReturn(rc, rc);
3181	}
3182	else
3183	{
3184	/** @todo new filter */
3185	AssertFailed();
3186	}
3187
3188	glGetIntegerv(pSurface->bindingGL, &activeTexture);
3189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3190
3191	/* Must bind texture to the current context in order to change it. */
3192	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
3193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3194
3195	/* Generate the mip maps. */
3196	pState->ext.glGenerateMipmap(pSurface->targetGL);
3197	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3198
3199	/* Restore the old texture. */
3200	glBindTexture(pSurface->targetGL, activeTexture);
3201	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3202
3203	return VINF_SUCCESS;
3204	}
3205
3206
3207	#ifdef RT_OS_LINUX
3208	/**
3209	* X11 event handling thread.
3210	*
3211	* @returns VINF_SUCCESS (ignored)
3212	* @param hThreadSelf thread handle
3213	* @param pvUser pointer to pState structure
3214	*/
3215	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3216	{
3217	RT_NOREF(hThreadSelf);
3218	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3219	while (!pState->bTerminate)
3220	{
3221	while (XPending(pState->display) > 0)
3222	{
3223	XEvent event;
3224	XNextEvent(pState->display, &event);
3225
3226	switch (event.type)
3227	{
3228	default:
3229	break;
3230	}
3231	}
3232	/* sleep for 16ms to not burn too many cycles */
3233	RTThreadSleep(16);
3234	}
3235	return VINF_SUCCESS;
3236	}
3237	#endif // RT_OS_LINUX
3238
3239
3240	/**
3241	* Create a new 3d context
3242	*
3243	* @returns VBox status code.
3244	* @param pThisCC The VGA/VMSVGA state for ring-3.
3245	* @param cid Context id
3246	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3247	*/
3248	int vmsvga3dContextDefineOgl(PVGASTATECC pThisCC, uint32_t cid, uint32_t fFlags)
3249	{
3250	int rc;
3251	PVMSVGA3DCONTEXT pContext;
3252	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3253
3254	AssertReturn(pState, VERR_NO_MEMORY);
3255	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3256	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3257	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3258	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3259	#endif
3260
3261	Log(("vmsvga3dContextDefine id %x\n", cid));
3262
3263	if (cid == VMSVGA3D_SHARED_CTX_ID)
3264	pContext = &pState->SharedCtx;
3265	else
3266	{
3267	if (cid >= pState->cContexts)
3268	{
3269	/* Grow the array. */
3270	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3271	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3272	AssertReturn(pvNew, VERR_NO_MEMORY);
3273	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3274	while (pState->cContexts < cNew)
3275	{
3276	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3277	AssertReturn(pContext, VERR_NO_MEMORY);
3278	pContext->id = SVGA3D_INVALID_ID;
3279	pState->papContexts[pState->cContexts++] = pContext;
3280	}
3281	}
3282	/* If one already exists with this id, then destroy it now. */
3283	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3284	vmsvga3dBackContextDestroy(pThisCC, cid);
3285
3286	pContext = pState->papContexts[cid];
3287	}
3288
3289	/*
3290	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3291	*/
3292	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3293	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3294	{
3295	pSharedCtx = &pState->SharedCtx;
3296	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3297	{
3298	rc = vmsvga3dContextDefineOgl(pThisCC, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3299	AssertLogRelRCReturn(rc, rc);
3300
3301	/* Create resources which use the shared context. */
3302	vmsvga3dOnSharedContextDefine(pState);
3303	}
3304	}
3305
3306	/*
3307	* Initialize the context.
3308	*/
3309	memset(pContext, 0, sizeof(*pContext));
3310	pContext->id = cid;
3311	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3312	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3313
3314	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3315	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3316	pContext->idFramebuffer = OPENGL_INVALID_ID;
3317	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3318	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3319
3320	rc = ShaderContextCreate(&pContext->pShaderContext);
3321	AssertRCReturn(rc, rc);
3322
3323	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3324	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3325
3326	#ifdef RT_OS_WINDOWS
3327	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3328	* to present the rendered image. Rendered images from the guest will be copied to
3329	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3330	* system memory in the guest VRAM.
3331	*/
3332	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3333	AssertRCReturn(rc, rc);
3334
3335	pContext->hdc = GetDC(pContext->hwnd);
3336	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3337
3338	PIXELFORMATDESCRIPTOR pfd = {
3339	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3340	1, /* version number */
3341	PFD_DRAW_TO_WINDOW \| /* support window */
3342	PFD_SUPPORT_OPENGL, /* support OpenGL */
3343	PFD_TYPE_RGBA, /* RGBA type */
3344	24, /* 24-bit color depth */
3345	0, 0, 0, 0, 0, 0, /* color bits ignored */
3346	8, /* alpha buffer */
3347	0, /* shift bit ignored */
3348	0, /* no accumulation buffer */
3349	0, 0, 0, 0, /* accum bits ignored */
3350	16, /* set depth buffer */
3351	16, /* set stencil buffer */
3352	0, /* no auxiliary buffer */
3353	PFD_MAIN_PLANE, /* main layer */
3354	0, /* reserved */
3355	0, 0, 0 /* layer masks ignored */
3356	};
3357	int pixelFormat;
3358	BOOL ret;
3359
3360	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3361	/** @todo is this really necessary?? */
3362	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3363	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3364
3365	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3366	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3367
3368	pContext->hglrc = wglCreateContext(pContext->hdc);
3369	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3370
3371	if (pSharedCtx)
3372	{
3373	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3374	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3375	}
3376
3377	#elif defined(RT_OS_DARWIN)
3378	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3379
3380	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3381	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3382	NULL,
3383	4, 4,
3384	pShareContext, pContext->fOtherProfile);
3385
3386	#else
3387	if (pState->display == NULL)
3388	{
3389	/* get an X display and make sure we have glX 1.3 */
3390	pState->display = XOpenDisplay(0);
3391	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3392	int glxMajor, glxMinor;
3393	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3394	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3395	/* start our X event handling thread */
3396	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3397	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3398	}
3399
3400	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3401	/* Create a small 4x4 window required for GL context. */
3402	int attrib[] =
3403	{
3404	GLX_RGBA,
3405	GLX_RED_SIZE, 1,
3406	GLX_GREEN_SIZE, 1,
3407	GLX_BLUE_SIZE, 1,
3408	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3409	GLX_DOUBLEBUFFER,
3410	None
3411	};
3412	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3413	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3414	XSetWindowAttributes swa;
3415	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3416	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3417	swa.border_pixel = 0;
3418	swa.background_pixel = 0;
3419	swa.event_mask = StructureNotifyMask;
3420	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3421	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3422	0, 0, 4, 4,
3423	0, vi->depth, InputOutput,
3424	vi->visual, flags, &swa);
3425	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3426
3427	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3428
3429	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3430	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3431	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3432	#endif
3433
3434	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3435
3436	/* NULL during the first PowerOn call. */
3437	if (pState->ext.glGenFramebuffers)
3438	{
3439	/* Create a framebuffer object for this context. */
3440	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3442
3443	/* Bind the object to the framebuffer target. */
3444	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3445	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3446
3447	/* Create read and draw framebuffer objects for this context. */
3448	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3450
3451	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3452	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3453
3454	}
3455	#if 0
3456	/** @todo move to shader lib!!! */
3457	/* Clear the screen */
3458	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3459
3460	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3461	glClearIndex(0);
3462	glClearDepth(1);
3463	glClearStencil(0xffff);
3464	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3465	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3466	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3467	if (pState->ext.glProvokingVertex)
3468	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3469	/** @todo move to shader lib!!! */
3470	#endif
3471	return VINF_SUCCESS;
3472	}
3473
3474	#if defined(RT_OS_LINUX)
3475	/*
3476	* HW accelerated graphics output.
3477	*/
3478
3479	/**
3480	* VMSVGA3d screen data.
3481	*
3482	* Allocated on the heap and pointed to by VMSVGASCREENOBJECT::pHwScreen.
3483	*/
3484	typedef struct VMSVGAHWSCREEN
3485	{
3486	/* OpenGL context, which is used for the screen updates. */
3487	GLXContext glxctx;
3488
3489	/* The overlay window. */
3490	Window xwindow;
3491
3492	/* The RGBA texture which hold the screen content. */
3493	GLuint idScreenTexture;
3494
3495	/* Read and draw framebuffer objects for copying a surface to the screen texture. */
3496	GLuint idReadFramebuffer;
3497	GLuint idDrawFramebuffer;
3498	} VMSVGAHWSCREEN;
3499
3500	/* Send a notification to the UI. */
3501	#if 0 /* Unused */
3502	static int vmsvga3dDrvNotifyHwScreen(PVGASTATECC pThisCC, VBOX3D_NOTIFY_TYPE enmNotification,
3503	uint32_t idScreen, Pixmap pixmap, void *pvData, size_t cbData)
3504	{
3505	uint8_t au8Buffer[128];
3506	AssertLogRelMsgReturn(cbData <= sizeof(au8Buffer) - sizeof(VBOX3DNOTIFY),
3507	("cbData %zu", cbData),
3508	VERR_INVALID_PARAMETER);
3509
3510	VBOX3DNOTIFY p = (VBOX3DNOTIFY )&au8Buffer[0];
3511	p->enmNotification = enmNotification;
3512	p->iDisplay = idScreen;
3513	p->u32Reserved = 0;
3514	p->cbData = cbData + sizeof(uint64_t);
3515	/* au8Data consists of a 64 bit pixmap handle followed by notification specific data. */
3516	AssertCompile(sizeof(pixmap) <= sizeof(uint64_t));
3517	(uint64_t )&p->au8Data[0] = (uint64_t)pixmap;
3518	memcpy(&p->au8Data[sizeof(uint64_t)], pvData, cbData);
3519
3520	int rc = pThisCC->pDrv->pfn3DNotifyProcess(pThisCC->pDrv, p);
3521	return rc;
3522	}
3523	#endif /* Unused */
3524
3525	static void vmsvga3dDrvNotifyHwOverlay(PVGASTATECC pThisCC, VBOX3D_NOTIFY_TYPE enmNotification, uint32_t idScreen)
3526	{
3527	uint8_t au8Buffer[128];
3528	VBOX3DNOTIFY p = (VBOX3DNOTIFY )&au8Buffer[0];
3529	p->enmNotification = enmNotification;
3530	p->iDisplay = idScreen;
3531	p->u32Reserved = 0;
3532	p->cbData = sizeof(uint64_t);
3533	(uint64_t )&p->au8Data[0] = 0;
3534
3535	pThisCC->pDrv->pfn3DNotifyProcess(pThisCC->pDrv, p);
3536	}
3537
3538	/* Get X Window handle of the UI Framebuffer window. */
3539	static int vmsvga3dDrvQueryWindow(PVGASTATECC pThisCC, uint32_t idScreen, Window *pWindow)
3540	{
3541	uint8_t au8Buffer[128];
3542	VBOX3DNOTIFY p = (VBOX3DNOTIFY )&au8Buffer[0];
3543	p->enmNotification = VBOX3D_NOTIFY_TYPE_HW_OVERLAY_GET_ID;
3544	p->iDisplay = idScreen;
3545	p->u32Reserved = 0;
3546	p->cbData = sizeof(uint64_t);
3547	(uint64_t )&p->au8Data[0] = 0;
3548
3549	int rc = pThisCC->pDrv->pfn3DNotifyProcess(pThisCC->pDrv, p);
3550	if (RT_SUCCESS(rc))
3551	{
3552	pWindow = (Window)(uint64_t *)&p->au8Data[0];
3553	}
3554	return rc;
3555	}
3556
3557	static int ctxErrorHandler(Display dpy, XErrorEvent ev)
3558	{
3559	RT_NOREF(dpy);
3560	LogRel4(("VMSVGA: XError %d\n", (int)ev->error_code));
3561	return 0;
3562	}
3563
3564	/* Create an overlay X window for the HW accelerated screen. */
3565	static int vmsvga3dHwScreenCreate(PVMSVGA3DSTATE pState, Window parentWindow, unsigned int cWidth, unsigned int cHeight, VMSVGAHWSCREEN *p)
3566	{
3567	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3568
3569	int rc = VINF_SUCCESS;
3570
3571	XWindowAttributes parentAttr;
3572	if (XGetWindowAttributes(pState->display, parentWindow, &parentAttr) == 0)
3573	return VERR_INVALID_PARAMETER;
3574
3575	int const idxParentScreen = XScreenNumberOfScreen(parentAttr.screen);
3576
3577	/*
3578	* Create a new GL context, which will be used for copying to the screen.
3579	*/
3580
3581	/* FBConfig attributes for the overlay window. */
3582	static int const aConfigAttribList[] =
3583	{
3584	GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT, // Must support GLX windows
3585	GLX_DOUBLEBUFFER, False, // Double buffering had a much lower performance.
3586	GLX_RED_SIZE, 8, // True color RGB with 8 bits per channel.
3587	GLX_GREEN_SIZE, 8,
3588	GLX_BLUE_SIZE, 8,
3589	GLX_ALPHA_SIZE, 8,
3590	GLX_STENCIL_SIZE, 0, // No stencil buffer
3591	GLX_DEPTH_SIZE, 0, // No depth buffer
3592	None
3593	};
3594
3595	/* Find a suitable FB config. */
3596	int cConfigs = 0;
3597	GLXFBConfig *paConfigs = glXChooseFBConfig(pState->display, idxParentScreen, aConfigAttribList, &cConfigs);
3598	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: paConfigs %p cConfigs %d\n", (void *)paConfigs, cConfigs));
3599	if (paConfigs)
3600	{
3601	XVisualInfo *vi = NULL;
3602	int i = 0;
3603	for (; i < cConfigs; ++i)
3604	{
3605	/* Use XFree to free the data returned in the previous iteration of this loop. */
3606	if (vi)
3607	XFree(vi);
3608
3609	vi = glXGetVisualFromFBConfig(pState->display, paConfigs[i]);
3610	if (!vi)
3611	continue;
3612
3613	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: %p vid %lu screen %d depth %d r %lu g %lu b %lu clrmap %d bitsperrgb %d\n",
3614	(void *)vi->visual, vi->visualid, vi->screen, vi->depth,
3615	vi->red_mask, vi->green_mask, vi->blue_mask, vi->colormap_size, vi->bits_per_rgb));
3616
3617	/* Same screen as the parent window. */
3618	if (vi->screen != idxParentScreen)
3619	continue;
3620
3621	/* Search for 32 bits per pixel. */
3622	if (vi->depth != 32)
3623	continue;
3624
3625	/* 8 bits per color component is enough. */
3626	if (vi->bits_per_rgb != 8)
3627	continue;
3628
3629	/* Render to pixmap. */
3630	int value = 0;
3631	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_DRAWABLE_TYPE, &value);
3632	if (!(value & GLX_WINDOW_BIT))
3633	continue;
3634
3635	/* This FB config can be used. */
3636	break;
3637	}
3638
3639	if (i < cConfigs)
3640	{
3641	/* Found a suitable config with index i. */
3642
3643	/* Create an overlay window. */
3644	XSetWindowAttributes swa;
3645	RT_ZERO(swa);
3646
3647	swa.colormap = XCreateColormap(pState->display, parentWindow, vi->visual, AllocNone);
3648	AssertLogRelMsg(swa.colormap, ("XCreateColormap failed"));
3649	swa.border_pixel = 0;
3650	swa.background_pixel = 0;
3651	swa.event_mask = StructureNotifyMask;
3652	swa.override_redirect = 1;
3653	unsigned long const swaAttrs = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask \| CWOverrideRedirect;
3654	p->xwindow = XCreateWindow(pState->display, parentWindow,
3655	0, 0, cWidth, cHeight, 0, vi->depth, InputOutput,
3656	vi->visual, swaAttrs, &swa);
3657	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: p->xwindow %ld\n", p->xwindow));
3658	if (p->xwindow)
3659	{
3660
3661	p->glxctx = glXCreateContext(pState->display, vi, pState->SharedCtx.glxContext, GL_TRUE);
3662	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: p->glxctx %p\n", (void *)p->glxctx));
3663	if (p->glxctx)
3664	{
3665	XMapWindow(pState->display, p->xwindow);
3666	}
3667	else
3668	{
3669	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: glXCreateContext failed\n"));
3670	rc = VERR_NOT_SUPPORTED;
3671	}
3672	}
3673	else
3674	{
3675	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: XCreateWindow failed\n"));
3676	rc = VERR_NOT_SUPPORTED;
3677	}
3678
3679	XSync(pState->display, False);
3680	}
3681	else
3682	{
3683	/* A suitable config is not found. */
3684	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: no FBConfig\n"));
3685	rc = VERR_NOT_SUPPORTED;
3686	}
3687
3688	if (vi)
3689	XFree(vi);
3690
3691	/* "Use XFree to free the memory returned by glXChooseFBConfig." */
3692	XFree(paConfigs);
3693	}
3694	else
3695	{
3696	/* glXChooseFBConfig failed. */
3697	rc = VERR_NOT_SUPPORTED;
3698	}
3699
3700	XSetErrorHandler(oldHandler);
3701	return rc;
3702	}
3703
3704	/* Destroy a HW accelerated screen. */
3705	static void vmsvga3dHwScreenDestroy(PVMSVGA3DSTATE pState, VMSVGAHWSCREEN *p)
3706	{
3707	if (p)
3708	{
3709	LogRel4(("VMSVGA: vmsvga3dHwScreenDestroy: p->xwindow %ld, ctx %p\n", p->xwindow, (void *)p->glxctx));
3710	if (p->glxctx)
3711	{
3712	/* GLX context is changed here, so other code has to set the appropriate context again. */
3713	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3714
3715	glXMakeCurrent(pState->display, p->xwindow, p->glxctx);
3716
3717	/* Clean up OpenGL. */
3718	if (p->idReadFramebuffer != OPENGL_INVALID_ID)
3719	pState->ext.glDeleteFramebuffers(1, &p->idReadFramebuffer);
3720	if (p->idDrawFramebuffer != OPENGL_INVALID_ID)
3721	pState->ext.glDeleteFramebuffers(1, &p->idDrawFramebuffer);
3722	if (p->idScreenTexture != OPENGL_INVALID_ID)
3723	glDeleteTextures(1, &p->idScreenTexture);
3724
3725	glXMakeCurrent(pState->display, None, NULL);
3726
3727	glXDestroyContext(pState->display, p->glxctx);
3728	}
3729
3730	if (p->xwindow)
3731	XDestroyWindow(pState->display, p->xwindow);
3732
3733	RT_ZERO(*p);
3734	}
3735	}
3736
3737	#define GLCHECK() \
3738	do { \
3739	int glErr = glGetError(); \
3740	if (glErr != GL_NO_ERROR) LogRel4(("VMSVGA: GL error 0x%x @%d\n", glErr, __LINE__)); \
3741	} while(0)
3742
3743	static int vmsvga3dBackDefineScreen(PVGASTATE pThis, PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3744	{
3745	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: screen %u\n", pScreen->idScreen));
3746
3747	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3748	AssertReturn(pState, VERR_NOT_SUPPORTED);
3749
3750	if (!pThis->svga.f3DOverlayEnabled)
3751	return VERR_NOT_SUPPORTED;
3752
3753	Assert(pScreen->pHwScreen == NULL);
3754
3755	VMSVGAHWSCREEN p = (VMSVGAHWSCREEN )RTMemAllocZ(sizeof(VMSVGAHWSCREEN));
3756	AssertPtrReturn(p, VERR_NO_MEMORY);
3757
3758	/* Query the parent window ID from the UI framebuffer.
3759	* If it is there then
3760	* the device will create a texture for the screen content and an overlay window to present the screen content.
3761	* otherwise
3762	* the device will use the guest VRAM system memory for the screen content.
3763	*/
3764	Window parentWindow;
3765	int rc = vmsvga3dDrvQueryWindow(pThisCC, pScreen->idScreen, &parentWindow);
3766	if (RT_SUCCESS(rc))
3767	{
3768	/* Create the hardware accelerated screen. */
3769	rc = vmsvga3dHwScreenCreate(pState, parentWindow, pScreen->cWidth, pScreen->cHeight, p);
3770	if (RT_SUCCESS(rc))
3771	{
3772	/*
3773	* Setup the OpenGL context of the screen. The context will be used to draw on the screen.
3774	*/
3775
3776	/* GLX context is changed here, so other code has to set the appropriate context again. */
3777	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3778
3779	Bool const fSuccess = glXMakeCurrent(pState->display, p->xwindow, p->glxctx);
3780	if (fSuccess)
3781	{
3782	/* Set GL state. */
3783	glClearColor(0, 0, 0, 1);
3784	glEnable(GL_TEXTURE_2D);
3785	glDisable(GL_DEPTH_TEST);
3786	glDisable(GL_CULL_FACE);
3787
3788	/* The RGBA texture which hold the screen content. */
3789	glGenTextures(1, &p->idScreenTexture); GLCHECK();
3790	glBindTexture(GL_TEXTURE_2D, p->idScreenTexture); GLCHECK();
3791	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); GLCHECK();
3792	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); GLCHECK();
3793	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, pScreen->cWidth, pScreen->cHeight, 0,
3794	GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL); GLCHECK();
3795
3796	/* Create read and draw framebuffer objects for this screen. */
3797	pState->ext.glGenFramebuffers(1, &p->idReadFramebuffer); GLCHECK();
3798	pState->ext.glGenFramebuffers(1, &p->idDrawFramebuffer); GLCHECK();
3799
3800	/* Work in screen coordinates. */
3801	glMatrixMode(GL_MODELVIEW);
3802	glLoadIdentity();
3803	glOrtho(0, pScreen->cWidth, 0, pScreen->cHeight, -1, 1);
3804	glMatrixMode(GL_PROJECTION);
3805	glLoadIdentity();
3806
3807	/* Clear the texture. */
3808	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, p->idDrawFramebuffer); GLCHECK();
3809	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3810	p->idScreenTexture, 0); GLCHECK();
3811
3812	glClear(GL_COLOR_BUFFER_BIT);
3813
3814	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); GLCHECK();
3815
3816	glXMakeCurrent(pState->display, None, NULL);
3817
3818	XSync(pState->display, False);
3819
3820	vmsvga3dDrvNotifyHwOverlay(pThisCC, VBOX3D_NOTIFY_TYPE_HW_OVERLAY_CREATED, pScreen->idScreen);
3821	}
3822	else
3823	{
3824	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: failed to set current context\n"));
3825	rc = VERR_NOT_SUPPORTED;
3826	}
3827	}
3828	}
3829	else
3830	{
3831	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: no framebuffer\n"));
3832	}
3833
3834	if (RT_SUCCESS(rc))
3835	{
3836	LogRel(("VMSVGA: Using HW accelerated screen %u\n", pScreen->idScreen));
3837	pScreen->pHwScreen = p;
3838	}
3839	else
3840	{
3841	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: %Rrc\n", rc));
3842	vmsvga3dHwScreenDestroy(pState, p);
3843	RTMemFree(p);
3844	}
3845
3846	return rc;
3847	}
3848
3849	static int vmsvga3dBackDestroyScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3850	{
3851	LogRel4(("VMSVGA: vmsvga3dBackDestroyScreen: screen %u\n", pScreen->idScreen));
3852
3853	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3854	AssertReturn(pState, VERR_NOT_SUPPORTED);
3855
3856	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3857
3858	VMSVGAHWSCREEN *p = pScreen->pHwScreen;
3859	if (p)
3860	{
3861	pScreen->pHwScreen = NULL;
3862
3863	vmsvga3dDrvNotifyHwOverlay(pThisCC, VBOX3D_NOTIFY_TYPE_HW_OVERLAY_DESTROYED, pScreen->idScreen);
3864
3865	vmsvga3dHwScreenDestroy(pState, p);
3866	RTMemFree(p);
3867	}
3868
3869	XSetErrorHandler(oldHandler);
3870
3871	return VINF_SUCCESS;
3872	}
3873
3874	/* Blit a surface to the GLX pixmap. */
3875	static int vmsvga3dBackSurfaceBlitToScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen,
3876	SVGASignedRect destRect, SVGA3dSurfaceImageId srcImage,
3877	SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *paRects)
3878	{
3879	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3880	AssertReturn(pState, VERR_NOT_SUPPORTED);
3881
3882	VMSVGAHWSCREEN *p = pScreen->pHwScreen;
3883	AssertReturn(p, VERR_NOT_SUPPORTED);
3884
3885	PVMSVGA3DSURFACE pSurface;
3886	int rc = vmsvga3dSurfaceFromSid(pState, srcImage.sid, &pSurface);
3887	AssertRCReturn(rc, rc);
3888
3889	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface))
3890	{
3891	LogFunc(("src sid=%u flags=0x%x format=%d -> create texture\n", srcImage.sid, pSurface->surfaceFlags, pSurface->format));
3892	rc = vmsvga3dBackCreateTexture(pThisCC, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID, pSurface);
3893	AssertRCReturn(rc, rc);
3894	}
3895
3896	AssertReturn(pSurface->enmOGLResType == VMSVGA3D_OGLRESTYPE_TEXTURE, VERR_NOT_SUPPORTED);
3897
3898	PVMSVGA3DMIPMAPLEVEL pMipLevel;
3899	rc = vmsvga3dMipmapLevel(pSurface, srcImage.face, srcImage.mipmap, &pMipLevel);
3900	AssertRCReturn(rc, rc);
3901
3902	/** @todo Implement. */
3903	RT_NOREF(cRects, paRects);
3904
3905	/* GLX context is changed here, so other code has to set appropriate context again. */
3906	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3907
3908	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3909
3910	Bool fSuccess = glXMakeCurrent(pState->display, p->xwindow, p->glxctx);
3911	if (fSuccess)
3912	{
3913	/* Activate the read and draw framebuffer objects. */
3914	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, p->idReadFramebuffer); GLCHECK();
3915	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, p->idDrawFramebuffer); GLCHECK();
3916
3917	/* Bind the source and destination objects to the right place. */
3918	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3919	pSurface->oglId.texture, 0); GLCHECK();
3920	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3921	p->idScreenTexture, 0); GLCHECK();
3922
3923	pState->ext.glBlitFramebuffer(srcRect.left,
3924	srcRect.top,
3925	srcRect.right,
3926	srcRect.bottom,
3927	destRect.left,
3928	destRect.top,
3929	destRect.right,
3930	destRect.bottom,
3931	GL_COLOR_BUFFER_BIT,
3932	GL_NEAREST); GLCHECK();
3933
3934	/* Reset the frame buffer association */
3935	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0); GLCHECK();
3936
3937	/* Update the overlay window. */
3938	glClear(GL_COLOR_BUFFER_BIT);
3939
3940	glBindTexture(GL_TEXTURE_2D, p->idScreenTexture); GLCHECK();
3941
3942	GLint const w = pScreen->cWidth;
3943	GLint const h = pScreen->cHeight;
3944
3945	glBegin(GL_QUADS);
3946	glTexCoord2f(0.0f, 0.0f); glVertex2i(0, h);
3947	glTexCoord2f(0.0f, 1.0f); glVertex2i(0, 0);
3948	glTexCoord2f(1.0f, 1.0f); glVertex2i(w, 0);
3949	glTexCoord2f(1.0f, 0.0f); glVertex2i(w, h);
3950	glEnd(); GLCHECK();
3951
3952	glBindTexture(GL_TEXTURE_2D, 0); GLCHECK();
3953
3954	glXMakeCurrent(pState->display, None, NULL);
3955	}
3956	else
3957	{
3958	LogRel4(("VMSVGA: vmsvga3dBackSurfaceBlitToScreen: screen %u, glXMakeCurrent for pixmap failed\n", pScreen->idScreen));
3959	}
3960
3961	XSetErrorHandler(oldHandler);
3962
3963	return VINF_SUCCESS;
3964	}
3965
3966	#else /* !RT_OS_LINUX */
3967
3968	static int vmsvga3dBackDefineScreen(PVGASTATE pThis, PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3969	{
3970	RT_NOREF(pThis, pThisCC, pScreen);
3971	return VERR_NOT_IMPLEMENTED;
3972	}
3973
3974	static int vmsvga3dBackDestroyScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3975	{
3976	RT_NOREF(pThisCC, pScreen);
3977	return VERR_NOT_IMPLEMENTED;
3978	}
3979
3980	static int vmsvga3dBackSurfaceBlitToScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen,
3981	SVGASignedRect destRect, SVGA3dSurfaceImageId srcImage,
3982	SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *paRects)
3983	{
3984	RT_NOREF(pThisCC, pScreen, destRect, srcImage, srcRect, cRects, paRects);
3985	return VERR_NOT_IMPLEMENTED;
3986	}
3987	#endif
3988
3989	/**
3990	* Create a new 3d context
3991	*
3992	* @returns VBox status code.
3993	* @param pThisCC The VGA/VMSVGA state for ring-3.
3994	* @param cid Context id
3995	*/
3996	static int vmsvga3dBackContextDefine(PVGASTATECC pThisCC, uint32_t cid)
3997	{
3998	return vmsvga3dContextDefineOgl(pThisCC, cid, 0/fFlags/);
3999	}
4000
4001	/**
4002	* Destroys a 3d context.
4003	*
4004	* @returns VBox status code.
4005	* @param pThisCC The VGA/VMSVGA state for ring-3.
4006	* @param pContext The context to destroy.
4007	* @param cid Context id
4008	*/
4009	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid)
4010	{
4011	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4012	AssertReturn(pState, VERR_NO_MEMORY);
4013	AssertReturn(pContext, VERR_INVALID_PARAMETER);
4014	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
4015	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
4016
4017	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4018
4019	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
4020	{
4021	/* Delete resources which use the shared context. */
4022	vmsvga3dOnSharedContextDestroy(pState);
4023	}
4024
4025	/* Destroy all leftover pixel shaders. */
4026	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
4027	{
4028	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
4029	vmsvga3dBackShaderDestroy(pThisCC, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
4030	}
4031	if (pContext->paPixelShader)
4032	RTMemFree(pContext->paPixelShader);
4033
4034	/* Destroy all leftover vertex shaders. */
4035	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
4036	{
4037	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
4038	vmsvga3dBackShaderDestroy(pThisCC, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
4039	}
4040	if (pContext->paVertexShader)
4041	RTMemFree(pContext->paVertexShader);
4042
4043	if (pContext->state.paVertexShaderConst)
4044	RTMemFree(pContext->state.paVertexShaderConst);
4045	if (pContext->state.paPixelShaderConst)
4046	RTMemFree(pContext->state.paPixelShaderConst);
4047
4048	if (pContext->pShaderContext)
4049	{
4050	int rc = ShaderContextDestroy(pContext->pShaderContext);
4051	AssertRC(rc);
4052	}
4053
4054	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
4055	{
4056	/* Unbind the object from the framebuffer target. */
4057	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
4058	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4059	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
4060	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4061
4062	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
4063	{
4064	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
4065	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4066	}
4067	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
4068	{
4069	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
4070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4071	}
4072	}
4073
4074	vmsvga3dBackOcclusionQueryDelete(pThisCC, pContext);
4075
4076	#ifdef RT_OS_WINDOWS
4077	wglMakeCurrent(pContext->hdc, NULL);
4078	wglDeleteContext(pContext->hglrc);
4079	ReleaseDC(pContext->hwnd, pContext->hdc);
4080
4081	/* Destroy the window we've created. */
4082	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
4083	AssertRC(rc);
4084	#elif defined(RT_OS_DARWIN)
4085	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
4086	#elif defined(RT_OS_LINUX)
4087	glXMakeCurrent(pState->display, None, NULL);
4088	glXDestroyContext(pState->display, pContext->glxContext);
4089	XDestroyWindow(pState->display, pContext->window);
4090	#endif
4091
4092	memset(pContext, 0, sizeof(*pContext));
4093	pContext->id = SVGA3D_INVALID_ID;
4094
4095	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
4096	return VINF_SUCCESS;
4097	}
4098
4099	/**
4100	* Destroy an existing 3d context
4101	*
4102	* @returns VBox status code.
4103	* @param pThisCC The VGA/VMSVGA state for ring-3.
4104	* @param cid Context id
4105	*/
4106	static int vmsvga3dBackContextDestroy(PVGASTATECC pThisCC, uint32_t cid)
4107	{
4108	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4109	AssertReturn(pState, VERR_WRONG_ORDER);
4110
4111	/*
4112	* Resolve the context and hand it to the common worker function.
4113	*/
4114	if ( cid < pState->cContexts
4115	&& pState->papContexts[cid]->id == cid)
4116	return vmsvga3dContextDestroyOgl(pThisCC, pState->papContexts[cid], cid);
4117
4118	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
4119	return VINF_SUCCESS;
4120	}
4121
4122	/**
4123	* Worker for vmsvga3dBackChangeMode that resizes a context.
4124	*
4125	* @param pState The VMSVGA3d state.
4126	* @param pContext The context.
4127	*/
4128	static void vmsvga3dChangeModeOneContext(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
4129	{
4130	RT_NOREF(pState, pContext);
4131	/* Do nothing. The window is not used for presenting. */
4132	}
4133
4134	/* Handle resize */
4135	static int vmsvga3dBackChangeMode(PVGASTATECC pThisCC)
4136	{
4137	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4138	AssertReturn(pState, VERR_NO_MEMORY);
4139
4140	/* Resize the shared context too. */
4141	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
4142	vmsvga3dChangeModeOneContext(pState, &pState->SharedCtx);
4143
4144	/* Resize all active contexts. */
4145	for (uint32_t i = 0; i < pState->cContexts; i++)
4146	{
4147	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
4148	if (pContext->id != SVGA3D_INVALID_ID)
4149	vmsvga3dChangeModeOneContext(pState, pContext);
4150	}
4151
4152	return VINF_SUCCESS;
4153	}
4154
4155
4156	static int vmsvga3dBackSetTransform(PVGASTATECC pThisCC, uint32_t cid, SVGA3dTransformType type, float matrix[16])
4157	{
4158	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4159	AssertReturn(pState, VERR_NO_MEMORY);
4160	bool fModelViewChanged = false;
4161
4162	Log(("vmsvga3dSetTransform cid=%u %s\n", cid, vmsvgaTransformToString(type)));
4163
4164	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
4165
4166	PVMSVGA3DCONTEXT pContext;
4167	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4168	AssertRCReturn(rc, rc);
4169
4170	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4171
4172	/* Save this matrix for vm state save/restore. */
4173	pContext->state.aTransformState[type].fValid = true;
4174	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
4175	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
4176
4177	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)));
4178	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)));
4179	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)));
4180	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)));
4181
4182	switch (type)
4183	{
4184	case SVGA3D_TRANSFORM_VIEW:
4185	/* View * World = Model View */
4186	glMatrixMode(GL_MODELVIEW);
4187	glLoadMatrixf(matrix);
4188	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
4189	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
4190	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4191	fModelViewChanged = true;
4192	break;
4193
4194	case SVGA3D_TRANSFORM_PROJECTION:
4195	{
4196	rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
4197	AssertRCReturn(rc, rc);
4198	break;
4199	}
4200
4201	case SVGA3D_TRANSFORM_TEXTURE0:
4202	glMatrixMode(GL_TEXTURE);
4203	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4204	glLoadMatrixf(matrix);
4205	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4206	break;
4207
4208	case SVGA3D_TRANSFORM_TEXTURE1:
4209	case SVGA3D_TRANSFORM_TEXTURE2:
4210	case SVGA3D_TRANSFORM_TEXTURE3:
4211	case SVGA3D_TRANSFORM_TEXTURE4:
4212	case SVGA3D_TRANSFORM_TEXTURE5:
4213	case SVGA3D_TRANSFORM_TEXTURE6:
4214	case SVGA3D_TRANSFORM_TEXTURE7:
4215	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
4216	return VERR_INVALID_PARAMETER;
4217
4218	case SVGA3D_TRANSFORM_WORLD:
4219	/* View * World = Model View */
4220	glMatrixMode(GL_MODELVIEW);
4221	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
4222	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
4223	else
4224	glLoadIdentity();
4225	glMultMatrixf(matrix);
4226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4227	fModelViewChanged = true;
4228	break;
4229
4230	case SVGA3D_TRANSFORM_WORLD1:
4231	case SVGA3D_TRANSFORM_WORLD2:
4232	case SVGA3D_TRANSFORM_WORLD3:
4233	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
4234	return VERR_INVALID_PARAMETER;
4235
4236	default:
4237	Log(("vmsvga3dSetTransform: unknown type!!\n"));
4238	return VERR_INVALID_PARAMETER;
4239	}
4240
4241	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
4242	if (fModelViewChanged)
4243	{
4244	/* Reprogram the clip planes. */
4245	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
4246	{
4247	if (pContext->state.aClipPlane[j].fValid == true)
4248	vmsvga3dBackSetClipPlane(pThisCC, cid, j, pContext->state.aClipPlane[j].plane);
4249	}
4250
4251	/* Reprogram the light data. */
4252	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
4253	{
4254	if (pContext->state.aLightData[j].fValidData == true)
4255	vmsvga3dBackSetLightData(pThisCC, cid, j, &pContext->state.aLightData[j].data);
4256	}
4257	}
4258
4259	return VINF_SUCCESS;
4260	}
4261
4262	static int vmsvga3dBackSetZRange(PVGASTATECC pThisCC, uint32_t cid, SVGA3dZRange zRange)
4263	{
4264	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4265	AssertReturn(pState, VERR_NO_MEMORY);
4266
4267	Log(("vmsvga3dSetZRange cid=%u min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
4268
4269	PVMSVGA3DCONTEXT pContext;
4270	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4271	AssertRCReturn(rc, rc);
4272
4273	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4274
4275	pContext->state.zRange = zRange;
4276	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
4277
4278	if (zRange.min < -1.0)
4279	zRange.min = -1.0;
4280	if (zRange.max > 1.0)
4281	zRange.max = 1.0;
4282
4283	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
4284	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4285	return VINF_SUCCESS;
4286	}
4287
4288	/**
4289	* Convert SVGA blend op value to its OpenGL equivalent
4290	*/
4291	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
4292	{
4293	switch (blendOp)
4294	{
4295	case SVGA3D_BLENDOP_ZERO:
4296	return GL_ZERO;
4297	case SVGA3D_BLENDOP_ONE:
4298	return GL_ONE;
4299	case SVGA3D_BLENDOP_SRCCOLOR:
4300	return GL_SRC_COLOR;
4301	case SVGA3D_BLENDOP_INVSRCCOLOR:
4302	return GL_ONE_MINUS_SRC_COLOR;
4303	case SVGA3D_BLENDOP_SRCALPHA:
4304	return GL_SRC_ALPHA;
4305	case SVGA3D_BLENDOP_INVSRCALPHA:
4306	return GL_ONE_MINUS_SRC_ALPHA;
4307	case SVGA3D_BLENDOP_DESTALPHA:
4308	return GL_DST_ALPHA;
4309	case SVGA3D_BLENDOP_INVDESTALPHA:
4310	return GL_ONE_MINUS_DST_ALPHA;
4311	case SVGA3D_BLENDOP_DESTCOLOR:
4312	return GL_DST_COLOR;
4313	case SVGA3D_BLENDOP_INVDESTCOLOR:
4314	return GL_ONE_MINUS_DST_COLOR;
4315	case SVGA3D_BLENDOP_SRCALPHASAT:
4316	return GL_SRC_ALPHA_SATURATE;
4317	case SVGA3D_BLENDOP_BLENDFACTOR:
4318	return GL_CONSTANT_COLOR;
4319	case SVGA3D_BLENDOP_INVBLENDFACTOR:
4320	return GL_ONE_MINUS_CONSTANT_COLOR;
4321	default:
4322	AssertFailed();
4323	return GL_ONE;
4324	}
4325	}
4326
4327	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
4328	{
4329	switch (blendEq)
4330	{
4331	case SVGA3D_BLENDEQ_ADD:
4332	return GL_FUNC_ADD;
4333	case SVGA3D_BLENDEQ_SUBTRACT:
4334	return GL_FUNC_SUBTRACT;
4335	case SVGA3D_BLENDEQ_REVSUBTRACT:
4336	return GL_FUNC_REVERSE_SUBTRACT;
4337	case SVGA3D_BLENDEQ_MINIMUM:
4338	return GL_MIN;
4339	case SVGA3D_BLENDEQ_MAXIMUM:
4340	return GL_MAX;
4341	default:
4342	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
4343	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
4344	return GL_FUNC_ADD;
4345	}
4346	}
4347
4348	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
4349	{
4350	switch (cmpFunc)
4351	{
4352	case SVGA3D_CMP_NEVER:
4353	return GL_NEVER;
4354	case SVGA3D_CMP_LESS:
4355	return GL_LESS;
4356	case SVGA3D_CMP_EQUAL:
4357	return GL_EQUAL;
4358	case SVGA3D_CMP_LESSEQUAL:
4359	return GL_LEQUAL;
4360	case SVGA3D_CMP_GREATER:
4361	return GL_GREATER;
4362	case SVGA3D_CMP_NOTEQUAL:
4363	return GL_NOTEQUAL;
4364	case SVGA3D_CMP_GREATEREQUAL:
4365	return GL_GEQUAL;
4366	case SVGA3D_CMP_ALWAYS:
4367	return GL_ALWAYS;
4368	default:
4369	Assert(cmpFunc == SVGA3D_CMP_INVALID);
4370	return GL_LESS;
4371	}
4372	}
4373
4374	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
4375	{
4376	switch (stencilOp)
4377	{
4378	case SVGA3D_STENCILOP_KEEP:
4379	return GL_KEEP;
4380	case SVGA3D_STENCILOP_ZERO:
4381	return GL_ZERO;
4382	case SVGA3D_STENCILOP_REPLACE:
4383	return GL_REPLACE;
4384	case SVGA3D_STENCILOP_INCRSAT:
4385	return GL_INCR_WRAP;
4386	case SVGA3D_STENCILOP_DECRSAT:
4387	return GL_DECR_WRAP;
4388	case SVGA3D_STENCILOP_INVERT:
4389	return GL_INVERT;
4390	case SVGA3D_STENCILOP_INCR:
4391	return GL_INCR;
4392	case SVGA3D_STENCILOP_DECR:
4393	return GL_DECR;
4394	default:
4395	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
4396	return GL_KEEP;
4397	}
4398	}
4399
4400	static int vmsvga3dBackSetRenderState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
4401	{
4402	uint32_t val = UINT32_MAX; /* Shut up MSC. */
4403	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4404	AssertReturn(pState, VERR_NO_MEMORY);
4405
4406	Log(("vmsvga3dSetRenderState cid=%u cRenderStates=%d\n", cid, cRenderStates));
4407
4408	PVMSVGA3DCONTEXT pContext;
4409	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4410	AssertRCReturn(rc, rc);
4411
4412	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4413
4414	for (unsigned i = 0; i < cRenderStates; i++)
4415	{
4416	GLenum enableCap = ~(GLenum)0;
4417	Log(("vmsvga3dSetRenderState: cid=%u state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
4418	/* Save the render state for vm state saving. */
4419	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
4420	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
4421
4422	switch (pRenderState[i].state)
4423	{
4424	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
4425	enableCap = GL_DEPTH_TEST;
4426	val = pRenderState[i].uintValue;
4427	break;
4428
4429	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
4430	glDepthMask(!!pRenderState[i].uintValue);
4431	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4432	break;
4433
4434	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
4435	enableCap = GL_ALPHA_TEST;
4436	val = pRenderState[i].uintValue;
4437	break;
4438
4439	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
4440	enableCap = GL_DITHER;
4441	val = pRenderState[i].uintValue;
4442	break;
4443
4444	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
4445	enableCap = GL_FOG;
4446	val = pRenderState[i].uintValue;
4447	break;
4448
4449	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
4450	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4451	break;
4452
4453	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
4454	enableCap = GL_LIGHTING;
4455	val = pRenderState[i].uintValue;
4456	break;
4457
4458	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
4459	/* not applicable */
4460	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4461	break;
4462
4463	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
4464	enableCap = GL_POINT_SPRITE_ARB;
4465	val = pRenderState[i].uintValue;
4466	break;
4467
4468	case SVGA3D_RS_POINTSIZE: /* float */
4469	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4470	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4471	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4472	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4473	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4474
4475	glPointSize(pRenderState[i].floatValue);
4476	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4477	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4478	break;
4479
4480	case SVGA3D_RS_POINTSIZEMIN: /* float */
4481	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4483	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4484	break;
4485
4486	case SVGA3D_RS_POINTSIZEMAX: /* float */
4487	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4488	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4489	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4490	break;
4491
4492	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4493	case SVGA3D_RS_POINTSCALE_A: /* float */
4494	case SVGA3D_RS_POINTSCALE_B: /* float */
4495	case SVGA3D_RS_POINTSCALE_C: /* float */
4496	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4497	break;
4498
4499	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4500	{
4501	GLfloat color[4]; /* red, green, blue, alpha */
4502
4503	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4504
4505	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4506	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4507	break;
4508	}
4509
4510	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4511	{
4512	for (uint32_t j = 0; j < SVGA3D_NUM_CLIPPLANES; j++)
4513	{
4514	if (pRenderState[i].uintValue & RT_BIT(j))
4515	glEnable(GL_CLIP_PLANE0 + j);
4516	else
4517	glDisable(GL_CLIP_PLANE0 + j);
4518	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4519	}
4520	break;
4521	}
4522
4523	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4524	{
4525	GLfloat color[4]; /* red, green, blue, alpha */
4526
4527	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4528
4529	glFogfv(GL_FOG_COLOR, color);
4530	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4531	break;
4532	}
4533
4534	case SVGA3D_RS_FOGSTART: /* float */
4535	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4536	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4537	break;
4538
4539	case SVGA3D_RS_FOGEND: /* float */
4540	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4541	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4542	break;
4543
4544	case SVGA3D_RS_FOGDENSITY: /* float */
4545	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4547	break;
4548
4549	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4550	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4551	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4552	break;
4553
4554	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4555	{
4556	SVGA3dFogMode mode;
4557	mode.uintValue = pRenderState[i].uintValue;
4558
4559	enableCap = GL_FOG_MODE;
4560	switch (mode.function)
4561	{
4562	case SVGA3D_FOGFUNC_EXP:
4563	val = GL_EXP;
4564	break;
4565	case SVGA3D_FOGFUNC_EXP2:
4566	val = GL_EXP2;
4567	break;
4568	case SVGA3D_FOGFUNC_LINEAR:
4569	val = GL_LINEAR;
4570	break;
4571	default:
4572	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.function), VERR_INTERNAL_ERROR);
4573	break;
4574	}
4575
4576	/** @todo how to switch between vertex and pixel fog modes??? */
4577	Assert(mode.type == SVGA3D_FOGTYPE_PIXEL);
4578	#if 0
4579	/* The fog type determines the render state. */
4580	switch (mode.type)
4581	{
4582	case SVGA3D_FOGTYPE_VERTEX:
4583	renderState = D3DRS_FOGVERTEXMODE;
4584	break;
4585	case SVGA3D_FOGTYPE_PIXEL:
4586	renderState = D3DRS_FOGTABLEMODE;
4587	break;
4588	default:
4589	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.type), VERR_INTERNAL_ERROR);
4590	break;
4591	}
4592	#endif
4593
4594	/* Set the fog base to depth or range. */
4595	switch (mode.base)
4596	{
4597	case SVGA3D_FOGBASE_DEPTHBASED:
4598	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4599	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4600	break;
4601	case SVGA3D_FOGBASE_RANGEBASED:
4602	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4603	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4604	break;
4605	default:
4606	/* ignore */
4607	AssertMsgFailed(("Unexpected fog base %d\n", mode.base));
4608	break;
4609	}
4610	break;
4611	}
4612
4613	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4614	{
4615	SVGA3dFillMode mode;
4616
4617	mode.uintValue = pRenderState[i].uintValue;
4618
4619	switch (mode.mode)
4620	{
4621	case SVGA3D_FILLMODE_POINT:
4622	val = GL_POINT;
4623	break;
4624	case SVGA3D_FILLMODE_LINE:
4625	val = GL_LINE;
4626	break;
4627	case SVGA3D_FILLMODE_FILL:
4628	val = GL_FILL;
4629	break;
4630	default:
4631	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.mode), VERR_INTERNAL_ERROR);
4632	break;
4633	}
4634	/* Only front and back faces. Also recent Mesa guest drivers initialize the 'face' to zero. */
4635	ASSERT_GUEST(mode.face == SVGA3D_FACE_FRONT_BACK \|\| mode.face == SVGA3D_FACE_INVALID);
4636	glPolygonMode(GL_FRONT_AND_BACK, val);
4637	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4638	break;
4639	}
4640
4641	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4642	switch (pRenderState[i].uintValue)
4643	{
4644	case SVGA3D_SHADEMODE_FLAT:
4645	val = GL_FLAT;
4646	break;
4647
4648	case SVGA3D_SHADEMODE_SMOOTH:
4649	val = GL_SMOOTH;
4650	break;
4651
4652	default:
4653	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4654	break;
4655	}
4656
4657	glShadeModel(val);
4658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4659	break;
4660
4661	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4662	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4663	/** @todo */
4664	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4665	/*
4666	renderState = D3DRS_LINEPATTERN;
4667	val = pRenderState[i].uintValue;
4668	*/
4669	break;
4670
4671	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4672	enableCap = GL_LINE_SMOOTH;
4673	val = pRenderState[i].uintValue;
4674	break;
4675
4676	case SVGA3D_RS_LINEWIDTH: /* float */
4677	glLineWidth(pRenderState[i].floatValue);
4678	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4679	break;
4680
4681	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4682	{
4683	/* Refresh the blending state based on the new enable setting.
4684	* This will take existing states and set them using either glBlend* or glBlend*Separate.
4685	*/
4686	static SVGA3dRenderStateName const saRefreshState[] =
4687	{
4688	SVGA3D_RS_SRCBLEND,
4689	SVGA3D_RS_BLENDEQUATION
4690	};
4691	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4692	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4693	{
4694	renderstate[j].state = saRefreshState[j];
4695	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4696	}
4697
4698	rc = vmsvga3dBackSetRenderState(pThisCC, cid, 2, renderstate);
4699	AssertRCReturn(rc, rc);
4700
4701	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4702	continue; /* Ignore if blend is enabled */
4703	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4704	} RT_FALL_THRU();
4705
4706	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4707	enableCap = GL_BLEND;
4708	val = pRenderState[i].uintValue;
4709	break;
4710
4711	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4712	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4713	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4714	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4715	{
4716	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4717	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4718
4719	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4720	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4721	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4722	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4723	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4724	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4725	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4726	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4727
4728	switch (pRenderState[i].state)
4729	{
4730	case SVGA3D_RS_SRCBLEND:
4731	srcRGB = blendop;
4732	break;
4733	case SVGA3D_RS_DSTBLEND:
4734	dstRGB = blendop;
4735	break;
4736	case SVGA3D_RS_SRCBLENDALPHA:
4737	srcAlpha = blendop;
4738	break;
4739	case SVGA3D_RS_DSTBLENDALPHA:
4740	dstAlpha = blendop;
4741	break;
4742	default:
4743	/* not possible; shut up gcc */
4744	AssertFailed();
4745	break;
4746	}
4747
4748	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4749	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4750	else
4751	glBlendFunc(srcRGB, dstRGB);
4752	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4753	break;
4754	}
4755
4756	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4757	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4758	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4759	{
4760	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4761	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4762	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4763	}
4764	else
4765	{
4766	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4767	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4768	#else
4769	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4770	#endif
4771	}
4772	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4773	break;
4774
4775	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4776	{
4777	GLfloat red, green, blue, alpha;
4778
4779	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4780
4781	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4782	glBlendColor(red, green, blue, alpha);
4783	#else
4784	pState->ext.glBlendColor(red, green, blue, alpha);
4785	#endif
4786	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4787	break;
4788	}
4789
4790	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4791	{
4792	GLenum mode = GL_BACK; /* default for OpenGL */
4793
4794	switch (pRenderState[i].uintValue)
4795	{
4796	case SVGA3D_FACE_NONE:
4797	break;
4798	case SVGA3D_FACE_FRONT:
4799	mode = GL_FRONT;
4800	break;
4801	case SVGA3D_FACE_BACK:
4802	mode = GL_BACK;
4803	break;
4804	case SVGA3D_FACE_FRONT_BACK:
4805	mode = GL_FRONT_AND_BACK;
4806	break;
4807	default:
4808	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4809	break;
4810	}
4811	enableCap = GL_CULL_FACE;
4812	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4813	{
4814	glCullFace(mode);
4815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4816	val = 1;
4817	}
4818	else
4819	val = 0;
4820	break;
4821	}
4822
4823	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4824	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4825	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4826	break;
4827
4828	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4829	{
4830	GLclampf ref;
4831
4832	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4833	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4834	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4835	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4836	break;
4837	}
4838
4839	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4840	{
4841	GLint func;
4842
4843	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4844	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4845	glAlphaFunc(func, pRenderState[i].floatValue);
4846	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4847	break;
4848	}
4849
4850	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4851	{
4852	/* Refresh the stencil state based on the new enable setting.
4853	* This will take existing states and set them using either glStencil or glStencil*Separate.
4854	*/
4855	static SVGA3dRenderStateName const saRefreshState[] =
4856	{
4857	SVGA3D_RS_STENCILFUNC,
4858	SVGA3D_RS_STENCILFAIL,
4859	SVGA3D_RS_CCWSTENCILFUNC,
4860	SVGA3D_RS_CCWSTENCILFAIL
4861	};
4862	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4863	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4864	{
4865	renderstate[j].state = saRefreshState[j];
4866	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4867	}
4868
4869	rc = vmsvga3dBackSetRenderState(pThisCC, cid, RT_ELEMENTS(renderstate), renderstate);
4870	AssertRCReturn(rc, rc);
4871
4872	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4873	continue; /* Ignore if stencil is enabled */
4874	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4875	} RT_FALL_THRU();
4876
4877	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4878	enableCap = GL_STENCIL_TEST;
4879	val = pRenderState[i].uintValue;
4880	break;
4881
4882	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4883	case SVGA3D_RS_STENCILREF: /* uint32_t */
4884	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4885	{
4886	GLint func, ref;
4887	GLuint mask;
4888
4889	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4890	glGetIntegerv(GL_STENCIL_FUNC, &func);
4891	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4892	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4893	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4894	glGetIntegerv(GL_STENCIL_REF, &ref);
4895	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4896
4897	/* Update the changed value. */
4898	switch (pRenderState[i].state)
4899	{
4900	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4901	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4902	break;
4903
4904	case SVGA3D_RS_STENCILREF: /* uint32_t */
4905	ref = pRenderState[i].uintValue;
4906	break;
4907
4908	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4909	mask = pRenderState[i].uintValue;
4910	break;
4911
4912	default:
4913	/* not possible; shut up gcc */
4914	AssertFailed();
4915	break;
4916	}
4917
4918	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4919	{
4920	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4921	}
4922	else
4923	{
4924	glStencilFunc(func, ref, mask);
4925	}
4926	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4927	break;
4928	}
4929
4930	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4931	glStencilMask(pRenderState[i].uintValue);
4932	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4933	break;
4934
4935	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4936	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4937	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4938	{
4939	GLint sfail, dpfail, dppass;
4940	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4941
4942	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4943	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4944	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4945	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4946	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4947	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4948
4949	switch (pRenderState[i].state)
4950	{
4951	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4952	sfail = stencilop;
4953	break;
4954	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4955	dpfail = stencilop;
4956	break;
4957	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4958	dppass = stencilop;
4959	break;
4960	default:
4961	/* not possible; shut up gcc */
4962	AssertFailed();
4963	break;
4964	}
4965	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4966	{
4967	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4968	}
4969	else
4970	{
4971	glStencilOp(sfail, dpfail, dppass);
4972	}
4973	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4974	break;
4975	}
4976
4977	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4978	{
4979	GLint ref;
4980	GLuint mask;
4981	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4982
4983	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4984	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4985	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4986	glGetIntegerv(GL_STENCIL_REF, &ref);
4987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4988
4989	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4991	break;
4992	}
4993
4994	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4995	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4996	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4997	{
4998	GLint sfail, dpfail, dppass;
4999	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
5000
5001	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
5002	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5003	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
5004	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5005	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
5006	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5007
5008	switch (pRenderState[i].state)
5009	{
5010	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
5011	sfail = stencilop;
5012	break;
5013	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
5014	dpfail = stencilop;
5015	break;
5016	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
5017	dppass = stencilop;
5018	break;
5019	default:
5020	/* not possible; shut up gcc */
5021	AssertFailed();
5022	break;
5023	}
5024	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
5025	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5026	break;
5027	}
5028
5029	case SVGA3D_RS_ZBIAS: /* float */
5030	/** @todo unknown meaning; depth bias is not identical
5031	renderState = D3DRS_DEPTHBIAS;
5032	val = pRenderState[i].uintValue;
5033	*/
5034	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
5035	break;
5036
5037	case SVGA3D_RS_DEPTHBIAS: /* float */
5038	{
5039	GLfloat factor;
5040
5041	/** @todo not sure if the d3d & ogl definitions are identical. */
5042
5043	/* Do not change the factor part. */
5044	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
5045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5046
5047	glPolygonOffset(factor, pRenderState[i].floatValue);
5048	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5049	break;
5050	}
5051
5052	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
5053	{
5054	GLfloat units;
5055
5056	/** @todo not sure if the d3d & ogl definitions are identical. */
5057
5058	/* Do not change the factor part. */
5059	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
5060	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5061
5062	glPolygonOffset(pRenderState[i].floatValue, units);
5063	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5064	break;
5065	}
5066
5067	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
5068	{
5069	GLboolean red, green, blue, alpha;
5070	SVGA3dColorMask mask;
5071
5072	mask.uintValue = pRenderState[i].uintValue;
5073
5074	red = mask.red;
5075	green = mask.green;
5076	blue = mask.blue;
5077	alpha = mask.alpha;
5078
5079	glColorMask(red, green, blue, alpha);
5080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5081	break;
5082	}
5083
5084	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5085	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5086	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5087	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
5088	break;
5089
5090	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
5091	enableCap = GL_SCISSOR_TEST;
5092	val = pRenderState[i].uintValue;
5093	break;
5094
5095	#if 0
5096	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5097	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
5098	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
5099	val = pRenderState[i].uintValue;
5100	break;
5101
5102	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
5103	renderState = D3DRS_SPECULARMATERIALSOURCE;
5104	val = pRenderState[i].uintValue;
5105	break;
5106
5107	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
5108	renderState = D3DRS_AMBIENTMATERIALSOURCE;
5109	val = pRenderState[i].uintValue;
5110	break;
5111
5112	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5113	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
5114	val = pRenderState[i].uintValue;
5115	break;
5116	#endif
5117
5118	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
5119	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
5120	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
5121	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
5122	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
5123	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
5124	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
5125	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
5126	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
5127	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
5128	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
5129	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
5130	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
5131	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
5132	break;
5133
5134	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
5135	case SVGA3D_RS_TWEENFACTOR: /* float */
5136	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
5137	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
5138	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
5139	break;
5140
5141	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
5142	enableCap = GL_MULTISAMPLE;
5143	val = pRenderState[i].uintValue;
5144	break;
5145
5146	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
5147	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
5148	break;
5149
5150	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
5151	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
5152	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
5153	/*
5154	renderState = D3DRS_COORDINATETYPE;
5155	val = pRenderState[i].uintValue;
5156	*/
5157	break;
5158
5159	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
5160	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
5161	/* Invert the selected mode because of y-inversion (?) */
5162	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
5163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5164	break;
5165
5166	case SVGA3D_RS_OUTPUTGAMMA: /* float */
5167	//AssertFailed();
5168	/*
5169	D3DRS_SRGBWRITEENABLE ??
5170	renderState = D3DRS_OUTPUTGAMMA;
5171	val = pRenderState[i].uintValue;
5172	*/
5173	break;
5174
5175	#if 0
5176
5177	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
5178	//AssertFailed();
5179	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
5180	val = pRenderState[i].uintValue;
5181	break;
5182
5183	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
5184	renderState = D3DRS_TEXTUREFACTOR;
5185	val = pRenderState[i].uintValue;
5186	break;
5187
5188	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
5189	renderState = D3DRS_LOCALVIEWER;
5190	val = pRenderState[i].uintValue;
5191	break;
5192
5193	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
5194	AssertFailed();
5195	/*
5196	renderState = D3DRS_ZVISIBLE;
5197	val = pRenderState[i].uintValue;
5198	*/
5199	break;
5200
5201	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
5202	renderState = D3DRS_CLIPPING;
5203	val = pRenderState[i].uintValue;
5204	break;
5205
5206	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
5207	glTexParameter GL_TEXTURE_WRAP_S
5208	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
5209	renderState = D3DRS_WRAP0;
5210	val = pRenderState[i].uintValue;
5211	break;
5212
5213	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
5214	glTexParameter GL_TEXTURE_WRAP_T
5215	renderState = D3DRS_WRAP1;
5216	val = pRenderState[i].uintValue;
5217	break;
5218
5219	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
5220	glTexParameter GL_TEXTURE_WRAP_R
5221	renderState = D3DRS_WRAP2;
5222	val = pRenderState[i].uintValue;
5223	break;
5224
5225
5226	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5227	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
5228	val = pRenderState[i].uintValue;
5229	break;
5230
5231
5232	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5233	renderState = D3DRS_BLENDOPALPHA;
5234	val = pRenderState[i].uintValue;
5235	break;
5236
5237	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
5238	AssertFailed();
5239	/*
5240	renderState = D3DRS_TRANSPARENCYANTIALIAS;
5241	val = pRenderState[i].uintValue;
5242	*/
5243	break;
5244
5245	#endif
5246	default:
5247	AssertFailed();
5248	break;
5249	}
5250
5251	if (enableCap != ~(GLenum)0)
5252	{
5253	if (val)
5254	glEnable(enableCap);
5255	else
5256	glDisable(enableCap);
5257	}
5258	}
5259
5260	return VINF_SUCCESS;
5261	}
5262
5263	static int vmsvga3dBackSetRenderTarget(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
5264	{
5265	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5266
5267	AssertReturn(pState, VERR_NO_MEMORY);
5268	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
5269
5270	LogFunc(("cid=%u type=%x sid=%u\n", cid, type, target.sid));
5271
5272	PVMSVGA3DCONTEXT pContext;
5273	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5274	AssertRCReturn(rc, rc);
5275
5276	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5277
5278	/* Save for vm state save/restore. */
5279	pContext->state.aRenderTargets[type] = target.sid;
5280
5281	if (target.sid == SVGA3D_INVALID_ID)
5282	{
5283	/* Disable render target. */
5284	switch (type)
5285	{
5286	case SVGA3D_RT_DEPTH:
5287	case SVGA3D_RT_STENCIL:
5288	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
5289	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5290	break;
5291
5292	case SVGA3D_RT_COLOR0:
5293	case SVGA3D_RT_COLOR1:
5294	case SVGA3D_RT_COLOR2:
5295	case SVGA3D_RT_COLOR3:
5296	case SVGA3D_RT_COLOR4:
5297	case SVGA3D_RT_COLOR5:
5298	case SVGA3D_RT_COLOR6:
5299	case SVGA3D_RT_COLOR7:
5300	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
5301	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5302	break;
5303
5304	default:
5305	AssertFailedReturn(VERR_INVALID_PARAMETER);
5306	}
5307	return VINF_SUCCESS;
5308	}
5309
5310	PVMSVGA3DSURFACE pRenderTarget;
5311	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
5312	AssertRCReturn(rc, rc);
5313
5314	switch (type)
5315	{
5316	case SVGA3D_RT_DEPTH:
5317	case SVGA3D_RT_STENCIL:
5318	#if 1
5319	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5320	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5321	{
5322	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
5323	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
5324	rc = vmsvga3dBackCreateTexture(pThisCC, pContext, cid, pRenderTarget);
5325	AssertRCReturn(rc, rc);
5326	}
5327
5328	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5329	Assert(!pRenderTarget->fDirty);
5330
5331	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5332
5333	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
5334	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5335	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
5336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5337	#else
5338	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
5339	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5340	{
5341	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
5342	pContext = &pState->SharedCtx;
5343	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5344
5345	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
5346	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5347	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
5348
5349	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5350	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5351
5352	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
5353	pRenderTarget->internalFormatGL,
5354	pRenderTarget->paMipmapLevels[0].mipmapSize.width,
5355	pRenderTarget->paMipmapLevels[0].mipmapSize.height);
5356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5357
5358	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
5359	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5360
5361	pContext = pState->papContexts[cid];
5362	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5363	pRenderTarget->idWeakContextAssociation = cid;
5364	}
5365
5366	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5367	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5368	Assert(!pRenderTarget->fDirty);
5369	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5370
5371	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5372
5373	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
5374	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5375	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5376	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5377	#endif
5378	break;
5379
5380	case SVGA3D_RT_COLOR0:
5381	case SVGA3D_RT_COLOR1:
5382	case SVGA3D_RT_COLOR2:
5383	case SVGA3D_RT_COLOR3:
5384	case SVGA3D_RT_COLOR4:
5385	case SVGA3D_RT_COLOR5:
5386	case SVGA3D_RT_COLOR6:
5387	case SVGA3D_RT_COLOR7:
5388	{
5389	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5390	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5391	{
5392	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));
5393	rc = vmsvga3dBackCreateTexture(pThisCC, pContext, cid, pRenderTarget);
5394	AssertRCReturn(rc, rc);
5395	}
5396
5397	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5398	Assert(!pRenderTarget->fDirty);
5399
5400	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
5401
5402	GLenum textarget;
5403	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
5404	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
5405	else
5406	textarget = GL_TEXTURE_2D;
5407	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
5408	textarget, pRenderTarget->oglId.texture, target.mipmap);
5409	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5410
5411	#ifdef DEBUG
5412	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
5413	if (status != GL_FRAMEBUFFER_COMPLETE)
5414	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
5415	#endif
5416	/** @todo use glDrawBuffers too? */
5417	break;
5418	}
5419
5420	default:
5421	AssertFailedReturn(VERR_INVALID_PARAMETER);
5422	}
5423
5424	return VINF_SUCCESS;
5425	}
5426
5427	#if 0
5428	/**
5429	* Convert SVGA texture combiner value to its D3D equivalent
5430	*/
5431	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
5432	{
5433	switch (value)
5434	{
5435	case SVGA3D_TC_DISABLE:
5436	return D3DTOP_DISABLE;
5437	case SVGA3D_TC_SELECTARG1:
5438	return D3DTOP_SELECTARG1;
5439	case SVGA3D_TC_SELECTARG2:
5440	return D3DTOP_SELECTARG2;
5441	case SVGA3D_TC_MODULATE:
5442	return D3DTOP_MODULATE;
5443	case SVGA3D_TC_ADD:
5444	return D3DTOP_ADD;
5445	case SVGA3D_TC_ADDSIGNED:
5446	return D3DTOP_ADDSIGNED;
5447	case SVGA3D_TC_SUBTRACT:
5448	return D3DTOP_SUBTRACT;
5449	case SVGA3D_TC_BLENDTEXTUREALPHA:
5450	return D3DTOP_BLENDTEXTUREALPHA;
5451	case SVGA3D_TC_BLENDDIFFUSEALPHA:
5452	return D3DTOP_BLENDDIFFUSEALPHA;
5453	case SVGA3D_TC_BLENDCURRENTALPHA:
5454	return D3DTOP_BLENDCURRENTALPHA;
5455	case SVGA3D_TC_BLENDFACTORALPHA:
5456	return D3DTOP_BLENDFACTORALPHA;
5457	case SVGA3D_TC_MODULATE2X:
5458	return D3DTOP_MODULATE2X;
5459	case SVGA3D_TC_MODULATE4X:
5460	return D3DTOP_MODULATE4X;
5461	case SVGA3D_TC_DSDT:
5462	AssertFailed(); /** @todo ??? */
5463	return D3DTOP_DISABLE;
5464	case SVGA3D_TC_DOTPRODUCT3:
5465	return D3DTOP_DOTPRODUCT3;
5466	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
5467	return D3DTOP_BLENDTEXTUREALPHAPM;
5468	case SVGA3D_TC_ADDSIGNED2X:
5469	return D3DTOP_ADDSIGNED2X;
5470	case SVGA3D_TC_ADDSMOOTH:
5471	return D3DTOP_ADDSMOOTH;
5472	case SVGA3D_TC_PREMODULATE:
5473	return D3DTOP_PREMODULATE;
5474	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
5475	return D3DTOP_MODULATEALPHA_ADDCOLOR;
5476	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
5477	return D3DTOP_MODULATECOLOR_ADDALPHA;
5478	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
5479	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
5480	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
5481	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
5482	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
5483	return D3DTOP_BUMPENVMAPLUMINANCE;
5484	case SVGA3D_TC_MULTIPLYADD:
5485	return D3DTOP_MULTIPLYADD;
5486	case SVGA3D_TC_LERP:
5487	return D3DTOP_LERP;
5488	default:
5489	AssertFailed();
5490	return D3DTOP_DISABLE;
5491	}
5492	}
5493
5494	/**
5495	* Convert SVGA texture arg data value to its D3D equivalent
5496	*/
5497	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
5498	{
5499	switch (value)
5500	{
5501	case SVGA3D_TA_CONSTANT:
5502	return D3DTA_CONSTANT;
5503	case SVGA3D_TA_PREVIOUS:
5504	return D3DTA_CURRENT; /* current = previous */
5505	case SVGA3D_TA_DIFFUSE:
5506	return D3DTA_DIFFUSE;
5507	case SVGA3D_TA_TEXTURE:
5508	return D3DTA_TEXTURE;
5509	case SVGA3D_TA_SPECULAR:
5510	return D3DTA_SPECULAR;
5511	default:
5512	AssertFailed();
5513	return 0;
5514	}
5515	}
5516
5517	/**
5518	* Convert SVGA texture transform flag value to its D3D equivalent
5519	*/
5520	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5521	{
5522	switch (value)
5523	{
5524	case SVGA3D_TEX_TRANSFORM_OFF:
5525	return D3DTTFF_DISABLE;
5526	case SVGA3D_TEX_TRANSFORM_S:
5527	return D3DTTFF_COUNT1; /** @todo correct? */
5528	case SVGA3D_TEX_TRANSFORM_T:
5529	return D3DTTFF_COUNT2; /** @todo correct? */
5530	case SVGA3D_TEX_TRANSFORM_R:
5531	return D3DTTFF_COUNT3; /** @todo correct? */
5532	case SVGA3D_TEX_TRANSFORM_Q:
5533	return D3DTTFF_COUNT4; /** @todo correct? */
5534	case SVGA3D_TEX_PROJECTED:
5535	return D3DTTFF_PROJECTED;
5536	default:
5537	AssertFailed();
5538	return 0;
5539	}
5540	}
5541	#endif
5542
5543	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5544	{
5545	switch (value)
5546	{
5547	case SVGA3D_TEX_ADDRESS_WRAP:
5548	return GL_REPEAT;
5549	case SVGA3D_TEX_ADDRESS_MIRROR:
5550	return GL_MIRRORED_REPEAT;
5551	case SVGA3D_TEX_ADDRESS_CLAMP:
5552	return GL_CLAMP_TO_EDGE;
5553	case SVGA3D_TEX_ADDRESS_BORDER:
5554	return GL_CLAMP_TO_BORDER;
5555	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5556	AssertFailed();
5557	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5558
5559	case SVGA3D_TEX_ADDRESS_EDGE:
5560	case SVGA3D_TEX_ADDRESS_INVALID:
5561	default:
5562	AssertFailed();
5563	return GL_REPEAT; /* default */
5564	}
5565	}
5566
5567	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5568	{
5569	switch (value)
5570	{
5571	case SVGA3D_TEX_FILTER_NONE:
5572	case SVGA3D_TEX_FILTER_LINEAR:
5573	case SVGA3D_TEX_FILTER_ANISOTROPIC: /* Anisotropic filtering is controlled by SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL */
5574	return GL_LINEAR;
5575	case SVGA3D_TEX_FILTER_NEAREST:
5576	return GL_NEAREST;
5577	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5578	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5579	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5580	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5581	default:
5582	AssertFailed();
5583	return GL_LINEAR; /* default */
5584	}
5585	}
5586
5587	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5588	{
5589	/* flip the red and blue bytes */
5590	uint8_t blue = value & 0xff;
5591	uint8_t red = (value >> 16) & 0xff;
5592	return (value & 0xff00ff00) \| red \| (blue << 16);
5593	}
5594
5595	static int vmsvga3dBackSetTextureState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5596	{
5597	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5598	GLenum currentStage = ~(GLenum)0;
5599	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5600	AssertReturn(pState, VERR_NO_MEMORY);
5601
5602	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5603
5604	PVMSVGA3DCONTEXT pContext;
5605	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5606	AssertRCReturn(rc, rc);
5607
5608	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5609
5610	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
5611	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
5612
5613	for (uint32_t i = 0; i < cTextureStates; ++i)
5614	{
5615	GLenum textureType = ~(GLenum)0;
5616	#if 0
5617	GLenum samplerType = ~(GLenum)0;
5618	#endif
5619
5620	LogFunc(("cid=%u stage=%d type=%s (%x) val=%x\n",
5621	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5622
5623	/* Record the texture state for vm state saving. */
5624	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5625	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5626	{
5627	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5628	}
5629
5630	/* Activate the right texture unit for subsequent texture state changes. */
5631	if (pTextureState[i].stage != currentStage \|\| i == 0)
5632	{
5633	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5634	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5635	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5636	{
5637	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5638	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5639	currentStage = pTextureState[i].stage;
5640	}
5641	else
5642	{
5643	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5644	continue;
5645	}
5646
5647	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
5648	{
5649	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
5650	AssertRCReturn(rc, rc);
5651	}
5652	else
5653	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
5654	}
5655
5656	switch (pTextureState[i].name)
5657	{
5658	case SVGA3D_TS_BUMPENVMAT00: /* float */
5659	case SVGA3D_TS_BUMPENVMAT01: /* float */
5660	case SVGA3D_TS_BUMPENVMAT10: /* float */
5661	case SVGA3D_TS_BUMPENVMAT11: /* float */
5662	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5663	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5664	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5665	break;
5666
5667	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5668	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5669	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5670	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5671	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5672	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5673	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5674	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5675	/** @todo not used by MesaGL */
5676	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5677	break;
5678	#if 0
5679
5680	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5681	textureType = D3DTSS_TEXCOORDINDEX;
5682	val = pTextureState[i].value;
5683	break;
5684
5685	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5686	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5687	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5688	break;
5689	#endif
5690
5691	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5692	{
5693	uint32_t const sid = pTextureState[i].value;
5694
5695	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u replacing sid=%u\n",
5696	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
5697
5698	/* Only if texture actually changed. */ /// @todo needs testing.
5699	if (pContext->aSidActiveTextures[currentStage] != sid)
5700	{
5701	if (pCurrentTextureSurface)
5702	{
5703	/* Unselect the currently associated texture. */
5704	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5705	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5706
5707	if (currentStage < 8)
5708	{
5709	/* Necessary for the fixed pipeline. */
5710	glDisable(pCurrentTextureSurface->targetGL);
5711	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5712	}
5713
5714	pCurrentTextureSurface = NULL;
5715	}
5716
5717	if (sid == SVGA3D_INVALID_ID)
5718	{
5719	Assert(pCurrentTextureSurface == NULL);
5720	}
5721	else
5722	{
5723	PVMSVGA3DSURFACE pSurface;
5724	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5725	AssertRCReturn(rc, rc);
5726
5727	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u (%d,%d) replacing sid=%u\n",
5728	currentStage, sid, pSurface->paMipmapLevels[0].mipmapSize.width,
5729	pSurface->paMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5730
5731	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5732	{
5733	Log(("CreateTexture (%d,%d) levels=%d\n",
5734	pSurface->paMipmapLevels[0].mipmapSize.width, pSurface->paMipmapLevels[0].mipmapSize.height, pSurface->cLevels));
5735	rc = vmsvga3dBackCreateTexture(pThisCC, pContext, cid, pSurface);
5736	AssertRCReturn(rc, rc);
5737	}
5738
5739	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5740	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5741
5742	if (currentStage < 8)
5743	{
5744	/* Necessary for the fixed pipeline. */
5745	glEnable(pSurface->targetGL);
5746	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5747	}
5748
5749	/* Remember the currently active texture. */
5750	pCurrentTextureSurface = pSurface;
5751
5752	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5753	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5754	{
5755	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5756	{
5757	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5758
5759	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5760	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5761	vmsvga3dBackSetTextureState(pThisCC, pContext->id, 1, pTextureStateIter);
5762	}
5763	}
5764	}
5765
5766	pContext->aSidActiveTextures[currentStage] = sid;
5767	}
5768
5769	/* Finished; continue with the next one. */
5770	continue;
5771	}
5772
5773	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5774	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5775	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5776	break;
5777
5778	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5779	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5780	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5781	break;
5782
5783	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5784	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5785	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5786	break;
5787
5788	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5789	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5790	{
5791	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5792	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5793
5794	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5795	textureType = GL_TEXTURE_MIN_FILTER;
5796	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5797	{
5798	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5799	{
5800	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5801	val = GL_NEAREST_MIPMAP_LINEAR;
5802	else
5803	val = GL_NEAREST_MIPMAP_NEAREST;
5804	}
5805	else
5806	{
5807	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5808	val = GL_LINEAR_MIPMAP_LINEAR;
5809	else
5810	val = GL_LINEAR_MIPMAP_NEAREST;
5811	}
5812	}
5813	else
5814	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5815	break;
5816	}
5817
5818	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5819	textureType = GL_TEXTURE_MAG_FILTER;
5820	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5821	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5822	break;
5823
5824	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5825	{
5826	GLfloat color[4]; /* red, green, blue, alpha */
5827	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5828
5829	GLenum targetGL;
5830	if (pCurrentTextureSurface)
5831	targetGL = pCurrentTextureSurface->targetGL;
5832	else
5833	{
5834	/* No texture bound, assume 2D. */
5835	targetGL = GL_TEXTURE_2D;
5836	}
5837
5838	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5840	break;
5841	}
5842
5843	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5844	{
5845	GLenum targetGL;
5846	if (pCurrentTextureSurface)
5847	targetGL = pCurrentTextureSurface->targetGL;
5848	else
5849	{
5850	/* No texture bound, assume 2D. */
5851	targetGL = GL_TEXTURE_2D;
5852	}
5853
5854	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5855	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5856	break;
5857	}
5858
5859	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5860	textureType = GL_TEXTURE_BASE_LEVEL;
5861	val = pTextureState[i].value;
5862	break;
5863
5864	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5865	if (pState->caps.fTextureFilterAnisotropicSupported)
5866	{
5867	textureType = GL_TEXTURE_MAX_ANISOTROPY_EXT;
5868	val = RT_MIN((GLint)pTextureState[i].value, pState->caps.maxTextureAnisotropy);
5869	} /* otherwise ignore. */
5870	break;
5871
5872	#if 0
5873	case SVGA3D_TS_GAMMA: /* float */
5874	samplerType = D3DSAMP_SRGBTEXTURE;
5875	/* Boolean in D3D */
5876	if (pTextureState[i].floatValue == 1.0f)
5877	val = FALSE;
5878	else
5879	val = TRUE;
5880	break;
5881	#endif
5882	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5883	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5884	AssertFailed();
5885	break;
5886
5887	default:
5888	//AssertFailed();
5889	break;
5890	}
5891
5892	if (textureType != ~(GLenum)0)
5893	{
5894	GLenum targetGL;
5895	if (pCurrentTextureSurface)
5896	targetGL = pCurrentTextureSurface->targetGL;
5897	else
5898	{
5899	/* No texture bound, assume 2D. */
5900	targetGL = GL_TEXTURE_2D;
5901	}
5902
5903	switch (pTextureState[i].name)
5904	{
5905	case SVGA3D_TS_MINFILTER:
5906	case SVGA3D_TS_MAGFILTER:
5907	{
5908	if (pState->caps.fTextureFilterAnisotropicSupported)
5909	{
5910	uint32_t const anisotropyLevel = (SVGA3dTextureFilter)pTextureState[i].value == SVGA3D_TEX_FILTER_ANISOTROPIC
5911	? RT_MAX(1, pContext->state.aTextureStates[currentStage][SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL].value)
5912	: 1;
5913	glTexParameteri(targetGL, GL_TEXTURE_MAX_ANISOTROPY_EXT, RT_MIN((GLint)anisotropyLevel, pState->caps.maxTextureAnisotropy));
5914	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5915	}
5916	} break;
5917
5918	default: break;
5919	}
5920
5921	glTexParameteri(targetGL, textureType, val);
5922	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5923	}
5924	}
5925
5926	return VINF_SUCCESS;
5927	}
5928
5929	static int vmsvga3dBackSetMaterial(PVGASTATECC pThisCC, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5930	{
5931	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5932	AssertReturn(pState, VERR_NO_MEMORY);
5933
5934	LogFunc(("cid=%u face %d\n", cid, face));
5935
5936	PVMSVGA3DCONTEXT pContext;
5937	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5938	AssertRCReturn(rc, rc);
5939
5940	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5941
5942	GLenum oglFace;
5943	switch (face)
5944	{
5945	case SVGA3D_FACE_NONE:
5946	case SVGA3D_FACE_FRONT:
5947	oglFace = GL_FRONT;
5948	break;
5949
5950	case SVGA3D_FACE_BACK:
5951	oglFace = GL_BACK;
5952	break;
5953
5954	case SVGA3D_FACE_FRONT_BACK:
5955	oglFace = GL_FRONT_AND_BACK;
5956	break;
5957
5958	default:
5959	AssertFailedReturn(VERR_INVALID_PARAMETER);
5960	}
5961
5962	/* Save for vm state save/restore. */
5963	pContext->state.aMaterial[face].fValid = true;
5964	pContext->state.aMaterial[face].material = *pMaterial;
5965	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5966
5967	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5968	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5969	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5970	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5971	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5972	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5973
5974	return VINF_SUCCESS;
5975	}
5976
5977	/** @todo Move into separate library as we are using logic from Wine here. */
5978	static int vmsvga3dBackSetLightData(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5979	{
5980	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5981	AssertReturn(pState, VERR_NO_MEMORY);
5982
5983	LogFunc(("vmsvga3dSetLightData cid=%u index=%d type=%d\n", cid, index, pData->type));
5984	ASSERT_GUEST_RETURN(index < SVGA3D_MAX_LIGHTS, VERR_INVALID_PARAMETER);
5985
5986	PVMSVGA3DCONTEXT pContext;
5987	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5988	AssertRCReturn(rc, rc);
5989
5990	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5991
5992	/* Store for vm state save/restore */
5993	pContext->state.aLightData[index].fValidData = true;
5994	pContext->state.aLightData[index].data = *pData;
5995
5996	if ( pData->attenuation0 < 0.0f
5997	\|\| pData->attenuation1 < 0.0f
5998	\|\| pData->attenuation2 < 0.0f)
5999	{
6000	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
6001	return VINF_SUCCESS; /* ignore; could crash the GL driver */
6002	}
6003
6004	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
6005	glMatrixMode(GL_MODELVIEW);
6006	glPushMatrix();
6007	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6008
6009	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
6010	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
6011	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
6012
6013	float QuadAttenuation;
6014	if (pData->range * pData->range >= FLT_MIN)
6015	QuadAttenuation = 1.4f / (pData->range * pData->range);
6016	else
6017	QuadAttenuation = 0.0f;
6018
6019	switch (pData->type)
6020	{
6021	case SVGA3D_LIGHTTYPE_POINT:
6022	{
6023	GLfloat position[4];
6024
6025	position[0] = pData->position[0];
6026	position[1] = pData->position[1];
6027	position[2] = pData->position[2];
6028	position[3] = 1.0f;
6029
6030	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6031	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6032
6033	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6034	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6035
6036	/* Attenuation - Are these right? guessing... */
6037	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6038	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6039
6040	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6041	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6042
6043	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6044	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6045
6046	/** @todo range */
6047	break;
6048	}
6049
6050	case SVGA3D_LIGHTTYPE_SPOT1:
6051	{
6052	GLfloat exponent;
6053	GLfloat position[4];
6054	const GLfloat pi = 4.0f * atanf(1.0f);
6055
6056	position[0] = pData->position[0];
6057	position[1] = pData->position[1];
6058	position[2] = pData->position[2];
6059	position[3] = 1.0f;
6060
6061	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6062	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6063
6064	position[0] = pData->direction[0];
6065	position[1] = pData->direction[1];
6066	position[2] = pData->direction[2];
6067	position[3] = 1.0f;
6068
6069	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
6070	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6071
6072	/*
6073	* opengl-ish and d3d-ish spot lights use too different models for the
6074	* light "intensity" as a function of the angle towards the main light direction,
6075	* so we only can approximate very roughly.
6076	* however spot lights are rather rarely used in games (if ever used at all).
6077	* furthermore if still used, probably nobody pays attention to such details.
6078	*/
6079	if (pData->falloff == 0)
6080	{
6081	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
6082	* falloff resp. exponent parameter as an exponent, so the spot light lighting
6083	* will always be 1.0 for both of them, and we don't have to care for the
6084	* rest of the rather complex calculation
6085	*/
6086	exponent = 0.0f;
6087	}
6088	else
6089	{
6090	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
6091	if (rho < 0.0001f)
6092	rho = 0.0001f;
6093	exponent = -0.3f/log(cos(rho/2));
6094	}
6095	if (exponent > 128.0f)
6096	exponent = 128.0f;
6097
6098	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
6099	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6100
6101	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
6102	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6103
6104	/* Attenuation - Are these right? guessing... */
6105	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6106	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6107
6108	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6109	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6110
6111	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6112	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6113
6114	/** @todo range */
6115	break;
6116	}
6117
6118	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
6119	{
6120	GLfloat position[4];
6121
6122	position[0] = -pData->direction[0];
6123	position[1] = -pData->direction[1];
6124	position[2] = -pData->direction[2];
6125	position[3] = 0.0f;
6126
6127	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
6128	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6129
6130	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6131	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6132
6133	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
6134	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6135	break;
6136	}
6137
6138	case SVGA3D_LIGHTTYPE_SPOT2:
6139	default:
6140	Log(("Unsupported light type!!\n"));
6141	rc = VERR_INVALID_PARAMETER;
6142	break;
6143	}
6144
6145	/* Restore the modelview matrix */
6146	glPopMatrix();
6147
6148	return rc;
6149	}
6150
6151	static int vmsvga3dBackSetLightEnabled(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, uint32_t enabled)
6152	{
6153	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6154	AssertReturn(pState, VERR_NO_MEMORY);
6155
6156	LogFunc(("cid=%u %d -> %d\n", cid, index, enabled));
6157
6158	PVMSVGA3DCONTEXT pContext;
6159	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6160	AssertRCReturn(rc, rc);
6161
6162	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6163
6164	/* Store for vm state save/restore */
6165	if (index < SVGA3D_MAX_LIGHTS)
6166	pContext->state.aLightData[index].fEnabled = !!enabled;
6167	else
6168	AssertFailed();
6169
6170	if (enabled)
6171	{
6172	if (index < SVGA3D_MAX_LIGHTS)
6173	{
6174	/* Load the default settings if none have been set yet. */
6175	if (!pContext->state.aLightData[index].fValidData)
6176	vmsvga3dBackSetLightData(pThisCC, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
6177	}
6178	glEnable(GL_LIGHT0 + index);
6179	}
6180	else
6181	glDisable(GL_LIGHT0 + index);
6182
6183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6184	return VINF_SUCCESS;
6185	}
6186
6187	static int vmsvga3dBackSetViewPort(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
6188	{
6189	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6190	AssertReturn(pState, VERR_NO_MEMORY);
6191
6192	Log(("vmsvga3dSetViewPort cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6193
6194	PVMSVGA3DCONTEXT pContext;
6195	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6196	AssertRCReturn(rc, rc);
6197
6198	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6199
6200	/* Save for vm state save/restore. */
6201	pContext->state.RectViewPort = *pRect;
6202	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
6203
6204	/** @todo y-inversion for partial viewport coordinates? */
6205	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
6206	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6207
6208	/* Reset the projection matrix as that relies on the viewport setting. */
6209	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6210	vmsvga3dBackSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION,
6211	pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6212	else
6213	{
6214	float matrix[16];
6215
6216	/* identity matrix if no matrix set. */
6217	memset(matrix, 0, sizeof(matrix));
6218	matrix[0] = 1.0;
6219	matrix[5] = 1.0;
6220	matrix[10] = 1.0;
6221	matrix[15] = 1.0;
6222	vmsvga3dBackSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
6223	}
6224
6225	return VINF_SUCCESS;
6226	}
6227
6228	static int vmsvga3dBackSetClipPlane(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, float plane[4])
6229	{
6230	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6231	AssertReturn(pState, VERR_NO_MEMORY);
6232	double oglPlane[4];
6233
6234	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)));
6235	AssertReturn(index < SVGA3D_NUM_CLIPPLANES, VERR_INVALID_PARAMETER);
6236
6237	PVMSVGA3DCONTEXT pContext;
6238	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6239	AssertRCReturn(rc, rc);
6240
6241	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6242
6243	/* Store for vm state save/restore. */
6244	pContext->state.aClipPlane[index].fValid = true;
6245	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
6246
6247	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
6248	oglPlane[0] = (double)plane[0];
6249	oglPlane[1] = (double)plane[1];
6250	oglPlane[2] = (double)plane[2];
6251	oglPlane[3] = (double)plane[3];
6252
6253	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
6254	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6255
6256	return VINF_SUCCESS;
6257	}
6258
6259	static int vmsvga3dBackSetScissorRect(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
6260	{
6261	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6262	AssertReturn(pState, VERR_NO_MEMORY);
6263
6264	Log(("vmsvga3dSetScissorRect cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6265
6266	PVMSVGA3DCONTEXT pContext;
6267	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6268	AssertRCReturn(rc, rc);
6269
6270	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6271
6272	/* Store for vm state save/restore. */
6273	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
6274	pContext->state.RectScissor = *pRect;
6275
6276	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
6277	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6278
6279	return VINF_SUCCESS;
6280	}
6281
6282	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
6283	{
6284	/* Convert byte color components to float (0-1.0) */
6285	*pAlpha = (GLfloat)(color >> 24) / 255.0;
6286	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
6287	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
6288	*pBlue = (GLfloat)(color & 0xff) / 255.0;
6289	}
6290
6291	static int vmsvga3dBackCommandClear(PVGASTATECC pThisCC, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
6292	uint32_t cRects, SVGA3dRect *pRect)
6293	{
6294	GLbitfield mask = 0;
6295	GLbitfield restoreMask = 0;
6296	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6297	AssertReturn(pState, VERR_NO_MEMORY);
6298	GLboolean fDepthWriteEnabled = GL_FALSE;
6299	GLboolean afColorWriteEnabled[4] = { GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE };
6300
6301	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));
6302
6303	PVMSVGA3DCONTEXT pContext;
6304	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6305	AssertRCReturn(rc, rc);
6306
6307	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6308
6309	if (clearFlag & SVGA3D_CLEAR_COLOR)
6310	{
6311	GLfloat red, green, blue, alpha;
6312	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
6313
6314	/* Set the color clear value. */
6315	glClearColor(red, green, blue, alpha);
6316	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6317
6318	mask \|= GL_COLOR_BUFFER_BIT;
6319
6320	/* glClear will not clear the color buffer if writing is disabled. */
6321	glGetBooleanv(GL_COLOR_WRITEMASK, afColorWriteEnabled);
6322	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6323	if ( afColorWriteEnabled[0] == GL_FALSE
6324	\|\| afColorWriteEnabled[1] == GL_FALSE
6325	\|\| afColorWriteEnabled[2] == GL_FALSE
6326	\|\| afColorWriteEnabled[3] == GL_FALSE)
6327	{
6328	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
6329	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6330
6331	restoreMask \|= GL_COLOR_BUFFER_BIT;
6332	}
6333
6334	}
6335
6336	if (clearFlag & SVGA3D_CLEAR_STENCIL)
6337	{
6338	/** @todo possibly the same problem as with glDepthMask */
6339	glClearStencil(stencil);
6340	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6341
6342	mask \|= GL_STENCIL_BUFFER_BIT;
6343	}
6344
6345	if (clearFlag & SVGA3D_CLEAR_DEPTH)
6346	{
6347	glClearDepth((GLdouble)depth);
6348	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6349
6350	mask \|= GL_DEPTH_BUFFER_BIT;
6351
6352	/* glClear will not clear the depth buffer if writing is disabled. */
6353	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
6354	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6355	if (fDepthWriteEnabled == GL_FALSE)
6356	{
6357	glDepthMask(GL_TRUE);
6358	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6359
6360	restoreMask \|= GL_DEPTH_BUFFER_BIT;
6361	}
6362	}
6363
6364	/* Save the current scissor test bit and scissor box. */
6365	glPushAttrib(GL_SCISSOR_BIT);
6366	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6367
6368	if (cRects)
6369	{
6370	glEnable(GL_SCISSOR_TEST);
6371	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6372
6373	for (uint32_t i = 0; i < cRects; ++i)
6374	{
6375	LogFunc(("rect [%d] %d,%d %dx%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h));
6376	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
6377	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6378
6379	glClear(mask);
6380	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6381	}
6382	}
6383	else
6384	{
6385	glDisable(GL_SCISSOR_TEST);
6386	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6387
6388	glClear(mask);
6389	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6390	}
6391
6392	/* Restore the old scissor test bit and box */
6393	glPopAttrib();
6394	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6395
6396	/* Restore the write states. */
6397	if (restoreMask & GL_COLOR_BUFFER_BIT)
6398	{
6399	glColorMask(afColorWriteEnabled[0],
6400	afColorWriteEnabled[1],
6401	afColorWriteEnabled[2],
6402	afColorWriteEnabled[3]);
6403	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6404	}
6405
6406	if (restoreMask & GL_DEPTH_BUFFER_BIT)
6407	{
6408	glDepthMask(fDepthWriteEnabled);
6409	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6410	}
6411
6412	return VINF_SUCCESS;
6413	}
6414
6415	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
6416	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized, uint32_t &cbAttrib)
6417	{
6418	normalized = GL_FALSE;
6419	switch (identity.type)
6420	{
6421	case SVGA3D_DECLTYPE_FLOAT1:
6422	size = 1;
6423	type = GL_FLOAT;
6424	cbAttrib = sizeof(float);
6425	break;
6426	case SVGA3D_DECLTYPE_FLOAT2:
6427	size = 2;
6428	type = GL_FLOAT;
6429	cbAttrib = 2 * sizeof(float);
6430	break;
6431	case SVGA3D_DECLTYPE_FLOAT3:
6432	size = 3;
6433	type = GL_FLOAT;
6434	cbAttrib = 3 * sizeof(float);
6435	break;
6436	case SVGA3D_DECLTYPE_FLOAT4:
6437	size = 4;
6438	type = GL_FLOAT;
6439	cbAttrib = 4 * sizeof(float);
6440	break;
6441
6442	case SVGA3D_DECLTYPE_D3DCOLOR:
6443	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
6444	type = GL_UNSIGNED_BYTE;
6445	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
6446	cbAttrib = sizeof(uint32_t);
6447	break;
6448
6449	case SVGA3D_DECLTYPE_UBYTE4N:
6450	normalized = GL_TRUE;
6451	RT_FALL_THRU();
6452	case SVGA3D_DECLTYPE_UBYTE4:
6453	size = 4;
6454	type = GL_UNSIGNED_BYTE;
6455	cbAttrib = sizeof(uint32_t);
6456	break;
6457
6458	case SVGA3D_DECLTYPE_SHORT2N:
6459	normalized = GL_TRUE;
6460	RT_FALL_THRU();
6461	case SVGA3D_DECLTYPE_SHORT2:
6462	size = 2;
6463	type = GL_SHORT;
6464	cbAttrib = 2 * sizeof(uint16_t);
6465	break;
6466
6467	case SVGA3D_DECLTYPE_SHORT4N:
6468	normalized = GL_TRUE;
6469	RT_FALL_THRU();
6470	case SVGA3D_DECLTYPE_SHORT4:
6471	size = 4;
6472	type = GL_SHORT;
6473	cbAttrib = 4 * sizeof(uint16_t);
6474	break;
6475
6476	case SVGA3D_DECLTYPE_USHORT4N:
6477	normalized = GL_TRUE;
6478	size = 4;
6479	type = GL_UNSIGNED_SHORT;
6480	cbAttrib = 4 * sizeof(uint16_t);
6481	break;
6482
6483	case SVGA3D_DECLTYPE_USHORT2N:
6484	normalized = GL_TRUE;
6485	size = 2;
6486	type = GL_UNSIGNED_SHORT;
6487	cbAttrib = 2 * sizeof(uint16_t);
6488	break;
6489
6490	case SVGA3D_DECLTYPE_UDEC3:
6491	size = 3;
6492	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
6493	cbAttrib = sizeof(uint32_t);
6494	break;
6495
6496	case SVGA3D_DECLTYPE_DEC3N:
6497	normalized = true;
6498	size = 3;
6499	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
6500	cbAttrib = sizeof(uint32_t);
6501	break;
6502
6503	case SVGA3D_DECLTYPE_FLOAT16_2:
6504	size = 2;
6505	type = GL_HALF_FLOAT;
6506	cbAttrib = 2 * sizeof(uint16_t);
6507	break;
6508	case SVGA3D_DECLTYPE_FLOAT16_4:
6509	size = 4;
6510	type = GL_HALF_FLOAT;
6511	cbAttrib = 4 * sizeof(uint16_t);
6512	break;
6513	default:
6514	AssertFailedReturn(VERR_INVALID_PARAMETER);
6515	}
6516
6517	//pVertexElement->Method = identity.method;
6518	//pVertexElement->Usage = identity.usage;
6519
6520	return VINF_SUCCESS;
6521	}
6522
6523	static float vmsvga3dFloat16To32(uint16_t f16)
6524	{
6525	/* From Wiki */
6526	#ifndef INFINITY
6527	static uint32_t const sBitsINFINITY = UINT32_C(0x7f800000);
6528	#define INFINITY ((float const )&sBitsINFINITY)
6529	#endif
6530	#ifndef NAN
6531	static uint32_t const sBitsNAN = UINT32_C(0x7fc00000);
6532	#define NAN ((float const )&sBitsNAN)
6533	#endif
6534
6535	uint16_t const s = (f16 >> UINT16_C(15)) & UINT16_C(0x1);
6536	uint16_t const e = (f16 >> UINT16_C(10)) & UINT16_C(0x1f);
6537	uint16_t const m = (f16 ) & UINT16_C(0x3ff);
6538
6539	float result = s ? 1.0f : -1.0f;
6540	if (e == 0)
6541	{
6542	if (m == 0)
6543	result = 0.0f; / zero, -0 */
6544	else
6545	result = (float)m / 1024.0f / 16384.0f; / subnormal numbers: sign * 2^-14 * 0.m */
6546	}
6547	else if (e == 0x1f)
6548	{
6549	if (m == 0)
6550	result = INFINITY; / +-infinity */
6551	else
6552	result = NAN; /* NAN */
6553	}
6554	else
6555	{
6556	result = powf(2.0f, (float)e - 15.0f) (1.0f + (float)m / 1024.0f); /* sign * 2^(e-15) * 1.m */
6557	}
6558
6559	return result;
6560	}
6561
6562	/* Set a vertex attribute according to VMSVGA vertex declaration. */
6563	static int vmsvga3dSetVertexAttrib(PVMSVGA3DSTATE pState, GLuint index, SVGA3dVertexArrayIdentity const pIdentity, GLvoid const pv)
6564	{
6565	switch (pIdentity->type)
6566	{
6567	case SVGA3D_DECLTYPE_FLOAT1:
6568	{
6569	/* "One-component float expanded to (float, 0, 0, 1)." */
6570	GLfloat const p = (GLfloat )pv;
6571	GLfloat const v[4] = { p[0], 0.0f, 0.0f, 1.0f };
6572	pState->ext.glVertexAttrib4fv(index, v);
6573	break;
6574	}
6575	case SVGA3D_DECLTYPE_FLOAT2:
6576	{
6577	/* "Two-component float expanded to (float, float, 0, 1)." */
6578	GLfloat const p = (GLfloat )pv;
6579	GLfloat const v[4] = { p[0], p[1], 0.0f, 1.0f };
6580	pState->ext.glVertexAttrib4fv(index, v);
6581	break;
6582	}
6583	case SVGA3D_DECLTYPE_FLOAT3:
6584	{
6585	/* "Three-component float expanded to (float, float, float, 1)." */
6586	GLfloat const p = (GLfloat )pv;
6587	GLfloat const v[4] = { p[0], p[1], p[2], 1.0f };
6588	pState->ext.glVertexAttrib4fv(index, v);
6589	break;
6590	}
6591	case SVGA3D_DECLTYPE_FLOAT4:
6592	pState->ext.glVertexAttrib4fv(index, (GLfloat const *)pv);
6593	break;
6594	case SVGA3D_DECLTYPE_D3DCOLOR:
6595	/** @todo Need to swap bytes? */
6596	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6597	break;
6598	case SVGA3D_DECLTYPE_UBYTE4:
6599	pState->ext.glVertexAttrib4ubv(index, (GLubyte const *)pv);
6600	break;
6601	case SVGA3D_DECLTYPE_SHORT2:
6602	{
6603	/* "Two-component, signed short expanded to (value, value, 0, 1)." */
6604	GLshort const p = (GLshort const )pv;
6605	GLshort const v[4] = { p[0], p[1], 0, 1 };
6606	pState->ext.glVertexAttrib4sv(index, v);
6607	break;
6608	}
6609	case SVGA3D_DECLTYPE_SHORT4:
6610	pState->ext.glVertexAttrib4sv(index, (GLshort const *)pv);
6611	break;
6612	case SVGA3D_DECLTYPE_UBYTE4N:
6613	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6614	break;
6615	case SVGA3D_DECLTYPE_SHORT2N:
6616	{
6617	/* "Normalized, two-component, signed short, expanded to (first short/32767.0, second short/32767.0, 0, 1)." */
6618	GLshort const p = (GLshort const )pv;
6619	GLshort const v[4] = { p[0], p[1], 0, 1 };
6620	pState->ext.glVertexAttrib4Nsv(index, v);
6621	break;
6622	}
6623	case SVGA3D_DECLTYPE_SHORT4N:
6624	pState->ext.glVertexAttrib4Nsv(index, (GLshort const *)pv);
6625	break;
6626	case SVGA3D_DECLTYPE_USHORT2N:
6627	{
6628	GLushort const p = (GLushort const )pv;
6629	GLushort const v[4] = { p[0], p[1], 0, 1 };
6630	pState->ext.glVertexAttrib4Nusv(index, v);
6631	break;
6632	}
6633	case SVGA3D_DECLTYPE_USHORT4N:
6634	pState->ext.glVertexAttrib4Nusv(index, (GLushort const *)pv);
6635	break;
6636	case SVGA3D_DECLTYPE_UDEC3:
6637	{
6638	/** @todo Test */
6639	/* "Three-component, unsigned, 10 10 10 format expanded to (value, value, value, 1)." */
6640	uint32_t const u32 = (uint32_t )pv;
6641	GLfloat const v[4] = { (float)(u32 & 0x3ff), (float)((u32 >> 10) & 0x3ff), (float)((u32 >> 20) & 0x3ff), 1.0f };
6642	pState->ext.glVertexAttrib4fv(index, v);
6643	break;
6644	}
6645	case SVGA3D_DECLTYPE_DEC3N:
6646	{
6647	/** @todo Test */
6648	/* "Three-component, signed, 10 10 10 format normalized and expanded to (v[0]/511.0, v[1]/511.0, v[2]/511.0, 1)." */
6649	uint32_t const u32 = (uint32_t )pv;
6650	GLfloat const v[4] = { (u32 & 0x3ff) / 511.0f, ((u32 >> 10) & 0x3ff) / 511.0f, ((u32 >> 20) & 0x3ff) / 511.0f, 1.0f };
6651	pState->ext.glVertexAttrib4fv(index, v);
6652	break;
6653	}
6654	case SVGA3D_DECLTYPE_FLOAT16_2:
6655	{
6656	/** @todo Test */
6657	/* "Two-component, 16-bit, floating point expanded to (value, value, 0, 1)." */
6658	uint16_t const p = (uint16_t )pv;
6659	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]), 0.0f, 1.0f };
6660	pState->ext.glVertexAttrib4fv(index, v);
6661	break;
6662	}
6663	case SVGA3D_DECLTYPE_FLOAT16_4:
6664	{
6665	/** @todo Test */
6666	uint16_t const p = (uint16_t )pv;
6667	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]),
6668	vmsvga3dFloat16To32(p[2]), vmsvga3dFloat16To32(p[3]) };
6669	pState->ext.glVertexAttrib4fv(index, v);
6670	break;
6671	}
6672	default:
6673	AssertFailedReturn(VERR_INVALID_PARAMETER);
6674	}
6675
6676	return VINF_SUCCESS;
6677	}
6678
6679	/* Convert VMWare primitive type to its OpenGL equivalent. */
6680	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6681	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6682	{
6683	switch (PrimitiveType)
6684	{
6685	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6686	*pMode = GL_TRIANGLES;
6687	pcVertices = cPrimitiveCount 3;
6688	break;
6689	case SVGA3D_PRIMITIVE_POINTLIST:
6690	*pMode = GL_POINTS;
6691	*pcVertices = cPrimitiveCount;
6692	break;
6693	case SVGA3D_PRIMITIVE_LINELIST:
6694	*pMode = GL_LINES;
6695	pcVertices = cPrimitiveCount 2;
6696	break;
6697	case SVGA3D_PRIMITIVE_LINESTRIP:
6698	*pMode = GL_LINE_STRIP;
6699	*pcVertices = cPrimitiveCount + 1;
6700	break;
6701	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
6702	*pMode = GL_TRIANGLE_STRIP;
6703	*pcVertices = cPrimitiveCount + 2;
6704	break;
6705	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
6706	*pMode = GL_TRIANGLE_FAN;
6707	*pcVertices = cPrimitiveCount + 2;
6708	break;
6709	default:
6710	return VERR_INVALID_PARAMETER;
6711	}
6712	return VINF_SUCCESS;
6713	}
6714
6715	static int vmsvga3dResetTransformMatrices(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
6716	{
6717	int rc;
6718
6719	/* Reset the view matrix (also takes the world matrix into account). */
6720	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
6721	rc = vmsvga3dBackSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW,
6722	pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6723	else
6724	{
6725	float matrix[16];
6726
6727	/* identity matrix if no matrix set. */
6728	memset(matrix, 0, sizeof(matrix));
6729	matrix[0] = 1.0;
6730	matrix[5] = 1.0;
6731	matrix[10] = 1.0;
6732	matrix[15] = 1.0;
6733	rc = vmsvga3dBackSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
6734	}
6735
6736	/* Reset the projection matrix. */
6737	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6738	{
6739	rc = vmsvga3dBackSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6740	}
6741	else
6742	{
6743	float matrix[16];
6744
6745	/* identity matrix if no matrix set. */
6746	memset(matrix, 0, sizeof(matrix));
6747	matrix[0] = 1.0;
6748	matrix[5] = 1.0;
6749	matrix[10] = 1.0;
6750	matrix[15] = 1.0;
6751	rc = vmsvga3dBackSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
6752	}
6753	AssertRC(rc);
6754	return rc;
6755	}
6756
6757	static int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext,
6758	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
6759	SVGA3dVertexDecl *pVertexDecl,
6760	SVGA3dVertexDivisor const *paVertexDivisors)
6761	{
6762	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6763	unsigned const sidVertex = pVertexDecl[0].array.surfaceId;
6764
6765	PVMSVGA3DSURFACE pVertexSurface;
6766	int rc = vmsvga3dSurfaceFromSid(pState, sidVertex, &pVertexSurface);
6767	AssertRCReturn(rc, rc);
6768
6769	Log(("vmsvga3dDrawPrimitives: vertex surface sid=%u\n", sidVertex));
6770
6771	/* Create and/or bind the vertex buffer. */
6772	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6773	{
6774	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->paMipmapLevels[0].cbSurface));
6775	PVMSVGA3DCONTEXT pSavedCtx = pContext;
6776	pContext = &pState->SharedCtx;
6777	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6778
6779	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6780	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6781	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6782
6783	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6785
6786	Assert(pVertexSurface->fDirty);
6787	/** @todo rethink usage dynamic/static */
6788	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->paMipmapLevels[0].cbSurface, pVertexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6789	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6790
6791	pVertexSurface->paMipmapLevels[0].fDirty = false;
6792	pVertexSurface->fDirty = false;
6793
6794	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6795
6796	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6797	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6798
6799	pContext = pSavedCtx;
6800	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6801	}
6802
6803	Assert(pVertexSurface->fDirty == false);
6804	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6805	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6806
6807	/* Setup the vertex declarations. */
6808	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6809	{
6810	GLint size;
6811	GLenum type;
6812	GLboolean normalized;
6813	uint32_t cbAttrib;
6814	GLuint index = iVertexDeclBase + iVertex;
6815
6816	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));
6817
6818	rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized, cbAttrib);
6819	AssertRCReturn(rc, rc);
6820
6821	ASSERT_GUEST_RETURN( pVertexSurface->paMipmapLevels[0].cbSurface >= pVertexDecl[iVertex].array.offset
6822	&& pVertexSurface->paMipmapLevels[0].cbSurface - pVertexDecl[iVertex].array.offset >= cbAttrib,
6823	VERR_INVALID_PARAMETER);
6824	RT_UNTRUSTED_VALIDATED_FENCE();
6825
6826	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6827	{
6828	/* Use numbered vertex arrays (or attributes) when shaders are active. */
6829	if (pVertexDecl[iVertex].array.stride)
6830	{
6831	pState->ext.glEnableVertexAttribArray(index);
6832	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6833	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6834	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6835	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6836
6837	GLuint divisor = paVertexDivisors && paVertexDivisors[index].instanceData ? 1 : 0;
6838	pState->ext.glVertexAttribDivisor(index, divisor);
6839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6840
6841	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6842	}
6843	else
6844	{
6845	/*
6846	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6847	* - D3D (VMSVGA): "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6848	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6849	* VMSVGA uses the D3D semantics.
6850	*
6851	* Use glVertexAttrib in order to tell OpenGL to reuse the zero stride attributes for each vertex.
6852	*/
6853	pState->ext.glDisableVertexAttribArray(index);
6854	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6855
6856	const GLvoid v = (uint8_t )pVertexSurface->paMipmapLevels[0].pSurfaceData + pVertexDecl[iVertex].array.offset;
6857	vmsvga3dSetVertexAttrib(pState, index, &pVertexDecl[iVertex].identity, v);
6858	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6859	}
6860	}
6861	else
6862	{
6863	if (pVertexDecl[iVertex].array.stride == 0)
6864	{
6865	/* Zero stride means that the attribute pointer must not be increased.
6866	* See comment about stride in vmsvga3dDrawPrimitives.
6867	*/
6868	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
6869	AssertFailed();
6870	}
6871
6872	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6873	switch (pVertexDecl[iVertex].identity.usage)
6874	{
6875	case SVGA3D_DECLUSAGE_POSITIONT:
6876	case SVGA3D_DECLUSAGE_POSITION:
6877	{
6878	glEnableClientState(GL_VERTEX_ARRAY);
6879	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6880	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6881	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6883	break;
6884	}
6885	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6886	AssertFailed();
6887	break;
6888	case SVGA3D_DECLUSAGE_BLENDINDICES:
6889	AssertFailed();
6890	break;
6891	case SVGA3D_DECLUSAGE_NORMAL:
6892	glEnableClientState(GL_NORMAL_ARRAY);
6893	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6894	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6895	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6896	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6897	break;
6898	case SVGA3D_DECLUSAGE_PSIZE:
6899	AssertFailed();
6900	break;
6901	case SVGA3D_DECLUSAGE_TEXCOORD:
6902	/* Specify the affected texture unit. */
6903	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6904	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6905	#else
6906	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6907	#endif
6908	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6909	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6910	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6911	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6912	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6913	break;
6914	case SVGA3D_DECLUSAGE_TANGENT:
6915	AssertFailed();
6916	break;
6917	case SVGA3D_DECLUSAGE_BINORMAL:
6918	AssertFailed();
6919	break;
6920	case SVGA3D_DECLUSAGE_TESSFACTOR:
6921	AssertFailed();
6922	break;
6923	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6924	glEnableClientState(GL_COLOR_ARRAY);
6925	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6926	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6927	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6928	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6929	break;
6930	case SVGA3D_DECLUSAGE_FOG:
6931	glEnableClientState(GL_FOG_COORD_ARRAY);
6932	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6933	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6934	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6935	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6936	break;
6937	case SVGA3D_DECLUSAGE_DEPTH:
6938	AssertFailed();
6939	break;
6940	case SVGA3D_DECLUSAGE_SAMPLE:
6941	AssertFailed();
6942	break;
6943	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6944	}
6945	}
6946
6947	#ifdef LOG_ENABLED
6948	if (pVertexDecl[iVertex].array.stride == 0)
6949	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6950	#endif
6951	}
6952
6953	return VINF_SUCCESS;
6954	}
6955
6956	static int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase,
6957	uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6958	{
6959	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6960
6961	/* Clean up the vertex declarations. */
6962	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6963	{
6964	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6965	{
6966	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6967	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6968	vmsvga3dResetTransformMatrices(pThisCC, pContext);
6969	}
6970
6971	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6972	{
6973	/* Use numbered vertex arrays when shaders are active. */
6974	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6975	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6976	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6977	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6978	}
6979	else
6980	{
6981	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6982	switch (pVertexDecl[iVertex].identity.usage)
6983	{
6984	case SVGA3D_DECLUSAGE_POSITION:
6985	case SVGA3D_DECLUSAGE_POSITIONT:
6986	glDisableClientState(GL_VERTEX_ARRAY);
6987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6988	break;
6989	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6990	break;
6991	case SVGA3D_DECLUSAGE_BLENDINDICES:
6992	break;
6993	case SVGA3D_DECLUSAGE_NORMAL:
6994	glDisableClientState(GL_NORMAL_ARRAY);
6995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6996	break;
6997	case SVGA3D_DECLUSAGE_PSIZE:
6998	break;
6999	case SVGA3D_DECLUSAGE_TEXCOORD:
7000	/* Specify the affected texture unit. */
7001	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
7002	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7003	#else
7004	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
7005	#endif
7006	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
7007	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7008	break;
7009	case SVGA3D_DECLUSAGE_TANGENT:
7010	break;
7011	case SVGA3D_DECLUSAGE_BINORMAL:
7012	break;
7013	case SVGA3D_DECLUSAGE_TESSFACTOR:
7014	break;
7015	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
7016	glDisableClientState(GL_COLOR_ARRAY);
7017	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7018	break;
7019	case SVGA3D_DECLUSAGE_FOG:
7020	glDisableClientState(GL_FOG_COORD_ARRAY);
7021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7022	break;
7023	case SVGA3D_DECLUSAGE_DEPTH:
7024	break;
7025	case SVGA3D_DECLUSAGE_SAMPLE:
7026	break;
7027	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
7028	}
7029	}
7030	}
7031	/* Unbind the vertex buffer after usage. */
7032	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
7033	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7034	return VINF_SUCCESS;
7035	}
7036
7037	static int vmsvga3dBackDrawPrimitives(PVGASTATECC pThisCC, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
7038	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
7039	SVGA3dVertexDivisor *pVertexDivisor)
7040	{
7041	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7042	AssertReturn(pState, VERR_INTERNAL_ERROR);
7043	uint32_t iCurrentVertex;
7044
7045	Log(("vmsvga3dDrawPrimitives cid=%u numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
7046
7047	/* Caller already check these, but it cannot hurt to check again... */
7048	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
7049	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
7050	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
7051
7052	if (!cVertexDivisor)
7053	pVertexDivisor = NULL; /* Be sure. */
7054
7055	PVMSVGA3DCONTEXT pContext;
7056	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7057	AssertRCReturn(rc, rc);
7058
7059	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7060
7061	/* Check for pretransformed vertex declarations. */
7062	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
7063	{
7064	switch (pVertexDecl[iVertex].identity.usage)
7065	{
7066	case SVGA3D_DECLUSAGE_POSITIONT:
7067	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
7068	RT_FALL_THRU();
7069	case SVGA3D_DECLUSAGE_POSITION:
7070	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
7071	pContext->state.RectViewPort.h,
7072	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
7073	break;
7074	default: /* Shut up MSC. */ break;
7075	}
7076	}
7077
7078	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
7079	if (pContext->pShaderContext)
7080	{
7081	uint32_t rtHeight = 0;
7082
7083	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
7084	{
7085	PVMSVGA3DSURFACE pRenderTarget;
7086	rc = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pRenderTarget);
7087	AssertRCReturn(rc, rc);
7088
7089	rtHeight = pRenderTarget->paMipmapLevels[0].mipmapSize.height;
7090	}
7091
7092	ShaderUpdateState(pContext->pShaderContext, rtHeight);
7093	}
7094
7095	/* Try to figure out if instancing is used.
7096	* Support simple instancing case with one set of indexed data and one set per-instance data.
7097	*/
7098	uint32_t cInstances = 0;
7099	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
7100	{
7101	if (pVertexDivisor[iVertexDivisor].indexedData)
7102	{
7103	if (cInstances == 0)
7104	cInstances = pVertexDivisor[iVertexDivisor].count;
7105	else
7106	Assert(cInstances == pVertexDivisor[iVertexDivisor].count);
7107	}
7108	else if (pVertexDivisor[iVertexDivisor].instanceData)
7109	{
7110	Assert(pVertexDivisor[iVertexDivisor].count == 1);
7111	}
7112	}
7113
7114	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
7115	iCurrentVertex = 0;
7116	while (iCurrentVertex < numVertexDecls)
7117	{
7118	uint32_t sidVertex = SVGA_ID_INVALID;
7119	uint32_t iVertex;
7120
7121	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7122	{
7123	if ( sidVertex != SVGA_ID_INVALID
7124	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7125	)
7126	break;
7127	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7128	}
7129
7130	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThisCC, pContext, iCurrentVertex, iVertex - iCurrentVertex,
7131	&pVertexDecl[iCurrentVertex], pVertexDivisor);
7132	AssertRCReturn(rc, rc);
7133
7134	iCurrentVertex = iVertex;
7135	}
7136
7137	/* Now draw the primitives. */
7138	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
7139	{
7140	GLenum modeDraw;
7141	unsigned const sidIndex = pRange[iPrimitive].indexArray.surfaceId;
7142	PVMSVGA3DSURFACE pIndexSurface = NULL;
7143	unsigned cVertices;
7144
7145	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
7146	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
7147	if (RT_FAILURE(rc))
7148	{
7149	AssertRC(rc);
7150	goto internal_error;
7151	}
7152
7153	if (sidIndex != SVGA3D_INVALID_ID)
7154	{
7155	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
7156
7157	rc = vmsvga3dSurfaceFromSid(pState, sidIndex, &pIndexSurface);
7158	if (RT_FAILURE(rc))
7159	{
7160	AssertRC(rc);
7161	goto internal_error;
7162	}
7163
7164	Log(("vmsvga3dDrawPrimitives: index surface sid=%u\n", sidIndex));
7165
7166	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
7167	{
7168	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->paMipmapLevels[0].cbSurface));
7169	pContext = &pState->SharedCtx;
7170	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7171
7172	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
7173	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7174	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
7175
7176	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7177	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7178
7179	Assert(pIndexSurface->fDirty);
7180
7181	/** @todo rethink usage dynamic/static */
7182	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->paMipmapLevels[0].cbSurface, pIndexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
7183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7184
7185	pIndexSurface->paMipmapLevels[0].fDirty = false;
7186	pIndexSurface->fDirty = false;
7187
7188	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
7189
7190	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
7191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7192
7193	pContext = pState->papContexts[cid];
7194	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7195	}
7196	Assert(pIndexSurface->fDirty == false);
7197
7198	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7199	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7200	}
7201
7202	if (!pIndexSurface)
7203	{
7204	/* Render without an index buffer */
7205	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
7206	if (cInstances == 0)
7207	{
7208	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
7209	}
7210	else
7211	{
7212	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
7213	}
7214	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7215	}
7216	else
7217	{
7218	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
7219
7220	GLenum indexType;
7221	switch (pRange[iPrimitive].indexWidth)
7222	{
7223	case 1: indexType = GL_UNSIGNED_BYTE; break;
7224	case 2: indexType = GL_UNSIGNED_SHORT; break;
7225	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
7226	RT_FALL_THROUGH();
7227	case 4: indexType = GL_UNSIGNED_INT; break;
7228	}
7229
7230	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));
7231	if (cInstances == 0)
7232	{
7233	/* Render with an index buffer */
7234	if (pRange[iPrimitive].indexBias == 0)
7235	glDrawElements(modeDraw,
7236	cVertices,
7237	indexType,
7238	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
7239	else
7240	pState->ext.glDrawElementsBaseVertex(modeDraw,
7241	cVertices,
7242	indexType,
7243	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7244	pRange[iPrimitive].indexBias); /* basevertex */
7245	}
7246	else
7247	{
7248	/* Render with an index buffer */
7249	if (pRange[iPrimitive].indexBias == 0)
7250	pState->ext.glDrawElementsInstanced(modeDraw,
7251	cVertices,
7252	indexType,
7253	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7254	cInstances);
7255	else
7256	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
7257	cVertices,
7258	indexType,
7259	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7260	cInstances,
7261	pRange[iPrimitive].indexBias); /* basevertex */
7262	}
7263	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7264
7265	/* Unbind the index buffer after usage. */
7266	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
7267	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7268	}
7269	}
7270
7271	internal_error:
7272
7273	/* Deactivate the vertex declarations. */
7274	iCurrentVertex = 0;
7275	while (iCurrentVertex < numVertexDecls)
7276	{
7277	uint32_t sidVertex = SVGA_ID_INVALID;
7278	uint32_t iVertex;
7279
7280	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7281	{
7282	if ( sidVertex != SVGA_ID_INVALID
7283	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7284	)
7285	break;
7286	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7287	}
7288
7289	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThisCC, pContext, iCurrentVertex,
7290	iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
7291	AssertRCReturn(rc, rc);
7292
7293	iCurrentVertex = iVertex;
7294	}
7295
7296	#ifdef DEBUG
7297	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
7298	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
7299	{
7300	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
7301	{
7302	PVMSVGA3DSURFACE pTexture;
7303	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
7304	AssertContinue(RT_SUCCESS(rc2));
7305
7306	GLint activeTextureUnit = 0;
7307	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
7308	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7309
7310	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
7311	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7312
7313	GLint activeTexture = 0;
7314	glGetIntegerv(pTexture->bindingGL, &activeTexture);
7315	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7316
7317	pState->ext.glActiveTexture(activeTextureUnit);
7318	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7319
7320	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
7321	("%d vs %d unit %d (active unit %d) sid=%u\n", pTexture->oglId.texture, activeTexture, i,
7322	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
7323	}
7324	}
7325	#endif
7326
7327	#if 0
7328	/* Dump render target to a bitmap. */
7329	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
7330	{
7331	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
7332	PVMSVGA3DSURFACE pSurface;
7333	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
7334	if (RT_SUCCESS(rc2))
7335	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
7336	# if 0
7337	/* Stage 0 texture. */
7338	if (pContext->aSidActiveTextures[0] != SVGA3D_INVALID_ID)
7339	{
7340	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->aSidActiveTextures[0]);
7341	rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[0], &pSurface);
7342	if (RT_SUCCESS(rc2))
7343	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post-tx");
7344	}
7345	# endif
7346	}
7347	#endif
7348
7349	return rc;
7350	}
7351
7352
7353	static int vmsvga3dBackShaderDefine(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
7354	{
7355	PVMSVGA3DSHADER pShader;
7356	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7357	AssertReturn(pState, VERR_NO_MEMORY);
7358
7359	Log(("vmsvga3dShaderDefine cid=%u shid=%d type=%s cbData=0x%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
7360
7361	PVMSVGA3DCONTEXT pContext;
7362	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7363	AssertRCReturn(rc, rc);
7364
7365	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
7366
7367	rc = vmsvga3dShaderParse(type, cbData, pShaderData);
7368	if (RT_FAILURE(rc))
7369	{
7370	AssertRC(rc);
7371	vmsvga3dShaderLogRel("Failed to parse", type, cbData, pShaderData);
7372	return rc;
7373	}
7374
7375	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7376
7377	if (type == SVGA3D_SHADERTYPE_VS)
7378	{
7379	if (shid >= pContext->cVertexShaders)
7380	{
7381	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7382	AssertReturn(pvNew, VERR_NO_MEMORY);
7383	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
7384	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
7385	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
7386	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
7387	pContext->cVertexShaders = shid + 1;
7388	}
7389	/* If one already exists with this id, then destroy it now. */
7390	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
7391	vmsvga3dBackShaderDestroy(pThisCC, cid, shid, pContext->paVertexShader[shid].type);
7392
7393	pShader = &pContext->paVertexShader[shid];
7394	}
7395	else
7396	{
7397	Assert(type == SVGA3D_SHADERTYPE_PS);
7398	if (shid >= pContext->cPixelShaders)
7399	{
7400	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7401	AssertReturn(pvNew, VERR_NO_MEMORY);
7402	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
7403	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
7404	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
7405	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
7406	pContext->cPixelShaders = shid + 1;
7407	}
7408	/* If one already exists with this id, then destroy it now. */
7409	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
7410	vmsvga3dBackShaderDestroy(pThisCC, cid, shid, pContext->paPixelShader[shid].type);
7411
7412	pShader = &pContext->paPixelShader[shid];
7413	}
7414
7415	memset(pShader, 0, sizeof(*pShader));
7416	pShader->id = shid;
7417	pShader->cid = cid;
7418	pShader->type = type;
7419	pShader->cbData = cbData;
7420	pShader->pShaderProgram = RTMemAllocZ(cbData);
7421	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
7422	memcpy(pShader->pShaderProgram, pShaderData, cbData);
7423
7424	#ifdef DUMP_SHADER_DISASSEMBLY
7425	LPD3DXBUFFER pDisassembly;
7426	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
7427	if (hr == D3D_OK)
7428	{
7429	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
7430	pDisassembly->Release();
7431	}
7432	#endif
7433
7434	switch (type)
7435	{
7436	case SVGA3D_SHADERTYPE_VS:
7437	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pVertexShader);
7438	AssertRC(rc);
7439	break;
7440
7441	case SVGA3D_SHADERTYPE_PS:
7442	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pPixelShader);
7443	AssertRC(rc);
7444	break;
7445
7446	default:
7447	AssertFailedReturn(VERR_INVALID_PARAMETER);
7448	}
7449	if (rc != VINF_SUCCESS)
7450	{
7451	vmsvga3dShaderLogRel("Failed to create", type, cbData, pShaderData);
7452
7453	RTMemFree(pShader->pShaderProgram);
7454	memset(pShader, 0, sizeof(*pShader));
7455	pShader->id = SVGA3D_INVALID_ID;
7456	}
7457
7458	return rc;
7459	}
7460
7461	static int vmsvga3dBackShaderDestroy(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
7462	{
7463	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7464	AssertReturn(pState, VERR_NO_MEMORY);
7465	PVMSVGA3DSHADER pShader = NULL;
7466
7467	Log(("vmsvga3dShaderDestroy cid=%u shid=%d type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
7468
7469	PVMSVGA3DCONTEXT pContext;
7470	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7471	AssertRCReturn(rc, rc);
7472
7473	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7474
7475	if (type == SVGA3D_SHADERTYPE_VS)
7476	{
7477	if ( shid < pContext->cVertexShaders
7478	&& pContext->paVertexShader[shid].id == shid)
7479	{
7480	pShader = &pContext->paVertexShader[shid];
7481	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7482	AssertRC(rc);
7483	}
7484	}
7485	else
7486	{
7487	Assert(type == SVGA3D_SHADERTYPE_PS);
7488	if ( shid < pContext->cPixelShaders
7489	&& pContext->paPixelShader[shid].id == shid)
7490	{
7491	pShader = &pContext->paPixelShader[shid];
7492	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7493	AssertRC(rc);
7494	}
7495	}
7496
7497	if (pShader)
7498	{
7499	if (pShader->pShaderProgram)
7500	RTMemFree(pShader->pShaderProgram);
7501	memset(pShader, 0, sizeof(*pShader));
7502	pShader->id = SVGA3D_INVALID_ID;
7503	}
7504	else
7505	AssertFailedReturn(VERR_INVALID_PARAMETER);
7506
7507	return VINF_SUCCESS;
7508	}
7509
7510	static int vmsvga3dBackShaderSet(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
7511	{
7512	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7513	AssertReturn(pState, VERR_NO_MEMORY);
7514	int rc;
7515
7516	Log(("vmsvga3dShaderSet cid=%u type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
7517
7518	if (!pContext)
7519	{
7520	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7521	AssertRCReturn(rc, rc);
7522	}
7523
7524	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7525
7526	if (type == SVGA3D_SHADERTYPE_VS)
7527	{
7528	/* Save for vm state save/restore. */
7529	pContext->state.shidVertex = shid;
7530	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
7531
7532	if ( shid < pContext->cVertexShaders
7533	&& pContext->paVertexShader[shid].id == shid)
7534	{
7535	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
7536	Assert(type == pShader->type);
7537
7538	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7539	AssertRCReturn(rc, rc);
7540	}
7541	else
7542	if (shid == SVGA_ID_INVALID)
7543	{
7544	/* Unselect shader. */
7545	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
7546	AssertRCReturn(rc, rc);
7547	}
7548	else
7549	AssertFailedReturn(VERR_INVALID_PARAMETER);
7550	}
7551	else
7552	{
7553	/* Save for vm state save/restore. */
7554	pContext->state.shidPixel = shid;
7555	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
7556
7557	Assert(type == SVGA3D_SHADERTYPE_PS);
7558	if ( shid < pContext->cPixelShaders
7559	&& pContext->paPixelShader[shid].id == shid)
7560	{
7561	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
7562	Assert(type == pShader->type);
7563
7564	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7565	AssertRCReturn(rc, rc);
7566	}
7567	else
7568	if (shid == SVGA_ID_INVALID)
7569	{
7570	/* Unselect shader. */
7571	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
7572	AssertRCReturn(rc, rc);
7573	}
7574	else
7575	AssertFailedReturn(VERR_INVALID_PARAMETER);
7576	}
7577
7578	return VINF_SUCCESS;
7579	}
7580
7581	static int vmsvga3dBackShaderSetConst(PVGASTATECC pThisCC, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
7582	{
7583	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7584	AssertReturn(pState, VERR_NO_MEMORY);
7585
7586	Log(("vmsvga3dShaderSetConst cid=%u reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
7587
7588	PVMSVGA3DCONTEXT pContext;
7589	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7590	AssertRCReturn(rc, rc);
7591
7592	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7593
7594	for (uint32_t i = 0; i < cRegisters; i++)
7595	{
7596	#ifdef LOG_ENABLED
7597	switch (ctype)
7598	{
7599	case SVGA3D_CONST_TYPE_FLOAT:
7600	{
7601	float pValuesF = (float )pValues;
7602	Log(("ConstantF %d: value=" FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR "\n",
7603	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])));
7604	break;
7605	}
7606
7607	case SVGA3D_CONST_TYPE_INT:
7608	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7609	break;
7610
7611	case SVGA3D_CONST_TYPE_BOOL:
7612	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7613	break;
7614
7615	default:
7616	AssertFailedReturn(VERR_INVALID_PARAMETER);
7617	}
7618	#endif
7619	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
7620	}
7621
7622	switch (type)
7623	{
7624	case SVGA3D_SHADERTYPE_VS:
7625	switch (ctype)
7626	{
7627	case SVGA3D_CONST_TYPE_FLOAT:
7628	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7629	break;
7630
7631	case SVGA3D_CONST_TYPE_INT:
7632	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7633	break;
7634
7635	case SVGA3D_CONST_TYPE_BOOL:
7636	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7637	break;
7638
7639	default:
7640	AssertFailedReturn(VERR_INVALID_PARAMETER);
7641	}
7642	AssertRCReturn(rc, rc);
7643	break;
7644
7645	case SVGA3D_SHADERTYPE_PS:
7646	switch (ctype)
7647	{
7648	case SVGA3D_CONST_TYPE_FLOAT:
7649	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7650	break;
7651
7652	case SVGA3D_CONST_TYPE_INT:
7653	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7654	break;
7655
7656	case SVGA3D_CONST_TYPE_BOOL:
7657	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7658	break;
7659
7660	default:
7661	AssertFailedReturn(VERR_INVALID_PARAMETER);
7662	}
7663	AssertRCReturn(rc, rc);
7664	break;
7665
7666	default:
7667	AssertFailedReturn(VERR_INVALID_PARAMETER);
7668	}
7669
7670	return VINF_SUCCESS;
7671	}
7672
7673	static int vmsvga3dBackOcclusionQueryCreate(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
7674	{
7675	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7676	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
7677	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7678
7679	GLuint idQuery = 0;
7680	pState->ext.glGenQueries(1, &idQuery);
7681	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7682	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
7683	pContext->occlusion.idQuery = idQuery;
7684	return VINF_SUCCESS;
7685	}
7686
7687	static int vmsvga3dBackOcclusionQueryDelete(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
7688	{
7689	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7690	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
7691	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7692
7693	if (pContext->occlusion.idQuery)
7694	{
7695	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
7696	}
7697	return VINF_SUCCESS;
7698	}
7699
7700	static int vmsvga3dBackOcclusionQueryBegin(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
7701	{
7702	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7703	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
7704	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7705
7706	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
7707	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7708	return VINF_SUCCESS;
7709	}
7710
7711	static int vmsvga3dBackOcclusionQueryEnd(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
7712	{
7713	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7714	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
7715	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7716
7717	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
7718	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7719	return VINF_SUCCESS;
7720	}
7721
7722	static int vmsvga3dBackOcclusionQueryGetData(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
7723	{
7724	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7725	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
7726	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7727
7728	GLuint pixels = 0;
7729	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
7730	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7731
7732	*pu32Pixels = (uint32_t)pixels;
7733	return VINF_SUCCESS;
7734	}
7735
7736	int vmsvga3dQueryInterface(PVGASTATECC pThisCC, char const pszInterfaceName, void pvInterfaceFuncs, size_t cbInterfaceFuncs)
7737	{
7738	RT_NOREF(pThisCC);
7739
7740	int rc = VINF_SUCCESS;
7741	if (RTStrCmp(pszInterfaceName, VMSVGA3D_BACKEND_INTERFACE_NAME_3D) == 0)
7742	{
7743	if (cbInterfaceFuncs == sizeof(VMSVGA3DBACKENDFUNCS3D))
7744	{
7745	if (pvInterfaceFuncs)
7746	{
7747	VMSVGA3DBACKENDFUNCS3D p = (VMSVGA3DBACKENDFUNCS3D )pvInterfaceFuncs;
7748	p->pfnInit = vmsvga3dBackInit;
7749	p->pfnPowerOn = vmsvga3dBackPowerOn;
7750	p->pfnTerminate = vmsvga3dBackTerminate;
7751	p->pfnReset = vmsvga3dBackReset;
7752	p->pfnQueryCaps = vmsvga3dBackQueryCaps;
7753	p->pfnChangeMode = vmsvga3dBackChangeMode;
7754	p->pfnCreateTexture = vmsvga3dBackCreateTexture;
7755	p->pfnSurfaceDestroy = vmsvga3dBackSurfaceDestroy;
7756	p->pfnSurfaceCopy = vmsvga3dBackSurfaceCopy;
7757	p->pfnSurfaceDMACopyBox = vmsvga3dBackSurfaceDMACopyBox;
7758	p->pfnSurfaceStretchBlt = vmsvga3dBackSurfaceStretchBlt;
7759	p->pfnUpdateHostScreenViewport = vmsvga3dBackUpdateHostScreenViewport;
7760	p->pfnDefineScreen = vmsvga3dBackDefineScreen;
7761	p->pfnDestroyScreen = vmsvga3dBackDestroyScreen;
7762	p->pfnSurfaceBlitToScreen = vmsvga3dBackSurfaceBlitToScreen;
7763	}
7764	}
7765	else
7766	{
7767	AssertFailed();
7768	rc = VERR_INVALID_PARAMETER;
7769	}
7770	}
7771	else if (RTStrCmp(pszInterfaceName, VMSVGA3D_BACKEND_INTERFACE_NAME_VGPU9) == 0)
7772	{
7773	if (cbInterfaceFuncs == sizeof(VMSVGA3DBACKENDFUNCSVGPU9))
7774	{
7775	if (pvInterfaceFuncs)
7776	{
7777	VMSVGA3DBACKENDFUNCSVGPU9 p = (VMSVGA3DBACKENDFUNCSVGPU9 )pvInterfaceFuncs;
7778	p->pfnContextDefine = vmsvga3dBackContextDefine;
7779	p->pfnContextDestroy = vmsvga3dBackContextDestroy;
7780	p->pfnSetTransform = vmsvga3dBackSetTransform;
7781	p->pfnSetZRange = vmsvga3dBackSetZRange;
7782	p->pfnSetRenderState = vmsvga3dBackSetRenderState;
7783	p->pfnSetRenderTarget = vmsvga3dBackSetRenderTarget;
7784	p->pfnSetTextureState = vmsvga3dBackSetTextureState;
7785	p->pfnSetMaterial = vmsvga3dBackSetMaterial;
7786	p->pfnSetLightData = vmsvga3dBackSetLightData;
7787	p->pfnSetLightEnabled = vmsvga3dBackSetLightEnabled;
7788	p->pfnSetViewPort = vmsvga3dBackSetViewPort;
7789	p->pfnSetClipPlane = vmsvga3dBackSetClipPlane;
7790	p->pfnCommandClear = vmsvga3dBackCommandClear;
7791	p->pfnDrawPrimitives = vmsvga3dBackDrawPrimitives;
7792	p->pfnSetScissorRect = vmsvga3dBackSetScissorRect;
7793	p->pfnGenerateMipmaps = vmsvga3dBackGenerateMipmaps;
7794	p->pfnShaderDefine = vmsvga3dBackShaderDefine;
7795	p->pfnShaderDestroy = vmsvga3dBackShaderDestroy;
7796	p->pfnShaderSet = vmsvga3dBackShaderSet;
7797	p->pfnShaderSetConst = vmsvga3dBackShaderSetConst;
7798	p->pfnOcclusionQueryCreate = vmsvga3dBackOcclusionQueryCreate;
7799	p->pfnOcclusionQueryDelete = vmsvga3dBackOcclusionQueryDelete;
7800	p->pfnOcclusionQueryBegin = vmsvga3dBackOcclusionQueryBegin;
7801	p->pfnOcclusionQueryEnd = vmsvga3dBackOcclusionQueryEnd;
7802	p->pfnOcclusionQueryGetData = vmsvga3dBackOcclusionQueryGetData;
7803	}
7804	}
7805	else
7806	{
7807	AssertFailed();
7808	rc = VERR_INVALID_PARAMETER;
7809	}
7810	}
7811	else
7812	rc = VERR_NOT_IMPLEMENTED;
7813	return rc;
7814	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 89121

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