DevVGA-SVGA3d-ogl.cpp@ 81888

Last change on this file since 81888 was 81771, checked in by vboxsync, 5 years ago
Devices/Graphics: OpenGL backend texture format conversion
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 81771 2019-11-11 17:24:36Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2019 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
44	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
45	#include "DevVGA.h"
46
47	#include "DevVGA-SVGA.h"
48	#include "DevVGA-SVGA3d.h"
49	#include "DevVGA-SVGA3d-internal.h"
50
51	#ifdef DUMP_SHADER_DISASSEMBLY
52	# include <d3dx9shader.h>
53	#endif
54
55	#include <stdlib.h>
56	#include <math.h>
57	#include <float.h> /* FLT_MIN */
58
59
60	/*********************************************************************************************************************************
61	* Defined Constants And Macros *
62	*********************************************************************************************************************************/
63	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
64	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
65	#endif
66
67	#ifdef VMSVGA3D_DYNAMIC_LOAD
68	# define OGLGETPROCADDRESS glLdrGetProcAddress
69	#else
70	#ifdef RT_OS_WINDOWS
71	# define OGLGETPROCADDRESS MyWinGetProcAddress
72	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
73	{
74	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
75	PROC p = wglGetProcAddress(pszSymbol);
76	if (RT_VALID_PTR(p))
77	return p;
78	return 0;
79	}
80	#elif defined(RT_OS_DARWIN)
81	# include <dlfcn.h>
82	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
83	/** Resolves an OpenGL symbol. */
84	static void MyNSGLGetProcAddress(const char pszSymbol)
85	{
86	/* Another copy in shaderapi.c. */
87	static void *s_pvImage = NULL;
88	if (s_pvImage == NULL)
89	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
90	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
91	}
92
93	#else
94	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
95	#endif
96	#endif
97
98	/* Invert y-coordinate for OpenGL's bottom left origin. */
99	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
100	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
101
102	/**
103	* Macro for doing something and then checking for errors during initialization.
104	* Uses AssertLogRelMsg.
105	*/
106	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
107	do \
108	{ \
109	a_Expr; \
110	GLenum iGlError = glGetError(); \
111	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
112	} while (0)
113
114	/**
115	* Macro for doing something and then checking for errors during initialization,
116	* doing the same in the other context when enabled.
117	*
118	* This will try both profiles in dual profile builds. Caller must be in the
119	* default context.
120	*
121	* Uses AssertLogRelMsg to indicate trouble.
122	*/
123	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
124	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
125	do \
126	{ \
127	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
128	a_Expr; \
129	GLenum iGlError = glGetError(); \
130	if (iGlError != GL_NO_ERROR) \
131	{ \
132	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
133	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
134	a_Expr; \
135	GLenum iGlError2 = glGetError(); \
136	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
137	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
138	} \
139	} while (0)
140	#else
141	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
142	#endif
143
144
145	/*********************************************************************************************************************************
146	* Global Variables *
147	*********************************************************************************************************************************/
148	/* Define the default light parameters as specified by MSDN. */
149	/** @todo move out; fetched from Wine */
150	const SVGA3dLightData vmsvga3d_default_light =
151	{
152	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
153	false, /* inWorldSpace */
154	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
156	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
157	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
158	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
159	0.0f, /* range */
160	0.0f, /* falloff */
161	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
162	0.0f, /* theta */
163	0.0f /* phi */
164	};
165
166
167	/*********************************************************************************************************************************
168	* Internal Functions *
169	*********************************************************************************************************************************/
170	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
171	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
172
173	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
174	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
175
176
177	/**
178	* Checks if the given OpenGL extension is supported.
179	*
180	* @returns true if supported, false if not.
181	* @param pState The VMSVGA3d state.
182	* @param rsMinGLVersion The OpenGL version that introduced this feature
183	* into the core.
184	* @param pszWantedExtension The name of the OpenGL extension we want padded
185	* with one space at each end.
186	* @remarks Init time only.
187	*/
188	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
189	{
190	RT_NOREF(rsMinGLVersion);
191	/* check padding. */
192	Assert(pszWantedExtension[0] == ' ');
193	Assert(pszWantedExtension[1] != ' ');
194	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
195
196	/* Look it up. */
197	bool fRet = false;
198	if (strstr(pState->pszExtensions, pszWantedExtension))
199	fRet = true;
200
201	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
202	#ifdef RT_OS_DARWIN
203	AssertMsg( rsMinGLVersion == 0.0
204	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
205	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
206	("%s actual:%d min:%d fRet=%d\n",
207	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
208	#else
209	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
210	("%s actual:%d min:%d fRet=%d\n",
211	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
212	#endif
213	return fRet;
214	}
215
216
217	/**
218	* Outputs GL_EXTENSIONS list to the release log.
219	*/
220	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
221	{
222	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
223	bool fBuffered = RTLogRelSetBuffering(true);
224
225	/*
226	* Determin the column widths first.
227	*/
228	size_t acchWidths[4] = { 1, 1, 1, 1 };
229	uint32_t i;
230	const char *psz = pszExtensions;
231	for (i = 0; ; i++)
232	{
233	while (*psz == ' ')
234	psz++;
235	if (!*psz)
236	break;
237
238	const char *pszEnd = strchr(psz, ' ');
239	AssertBreak(pszEnd);
240	size_t cch = pszEnd - psz;
241
242	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
243	if (acchWidths[iColumn] < cch)
244	acchWidths[iColumn] = cch;
245
246	psz = pszEnd;
247	}
248
249	/*
250	* Output it.
251	*/
252	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
253	psz = pszExtensions;
254	for (i = 0; ; i++)
255	{
256	while (*psz == ' ')
257	psz++;
258	if (!*psz)
259	break;
260
261	const char *pszEnd = strchr(psz, ' ');
262	AssertBreak(pszEnd);
263	size_t cch = pszEnd - psz;
264
265	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
266	if (iColumn == 0)
267	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
268	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
269	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
270	else
271	LogRel((" %.*s", cch, psz));
272
273	psz = pszEnd;
274	}
275
276	RTLogRelSetBuffering(fBuffered);
277	LogRel(("\n"));
278	}
279
280	/**
281	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
282	* @a ppszExtensions.
283	*
284	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
285	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
286	* @param fGLProfileVersion The OpenGL profile version.
287	*/
288	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
289	{
290	int rc;
291	*ppszExtensions = NULL;
292
293	/*
294	* Try the old glGetString interface first.
295	*/
296	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
297	if (pszExtensions)
298	{
299	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
300	AssertLogRelRCReturn(rc, rc);
301	}
302	else
303	{
304	/*
305	* The new interface where each extension string is retrieved separately.
306	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
307	* the above GL_EXTENSIONS error lingers on darwin. sucks.
308	*/
309	#ifndef GL_NUM_EXTENSIONS
310	# define GL_NUM_EXTENSIONS 0x821D
311	#endif
312	GLint cExtensions = 1024;
313	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
314	Assert(cExtensions != 1024);
315
316	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
317	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
318
319	rc = RTStrAAppend(ppszExtensions, " ");
320	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
321	{
322	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
323	if (pszExt)
324	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
325	}
326	AssertRCReturn(rc, rc);
327	}
328
329	#if 1
330	/*
331	* Add extensions promoted into the core OpenGL profile.
332	*/
333	static const struct
334	{
335	float fGLVersion;
336	const char *pszzExtensions;
337	} s_aPromotedExtensions[] =
338	{
339	{
340	1.1f,
341	" GL_EXT_vertex_array \0"
342	" GL_EXT_polygon_offset \0"
343	" GL_EXT_blend_logic_op \0"
344	" GL_EXT_texture \0"
345	" GL_EXT_copy_texture \0"
346	" GL_EXT_subtexture \0"
347	" GL_EXT_texture_object \0"
348	" GL_ARB_framebuffer_object \0"
349	" GL_ARB_map_buffer_range \0"
350	" GL_ARB_vertex_array_object \0"
351	"\0"
352	},
353	{
354	1.2f,
355	" EXT_texture3D \0"
356	" EXT_bgra \0"
357	" EXT_packed_pixels \0"
358	" EXT_rescale_normal \0"
359	" EXT_separate_specular_color \0"
360	" SGIS_texture_edge_clamp \0"
361	" SGIS_texture_lod \0"
362	" EXT_draw_range_elements \0"
363	"\0"
364	},
365	{
366	1.3f,
367	" GL_ARB_texture_compression \0"
368	" GL_ARB_texture_cube_map \0"
369	" GL_ARB_multisample \0"
370	" GL_ARB_multitexture \0"
371	" GL_ARB_texture_env_add \0"
372	" GL_ARB_texture_env_combine \0"
373	" GL_ARB_texture_env_dot3 \0"
374	" GL_ARB_texture_border_clamp \0"
375	" GL_ARB_transpose_matrix \0"
376	"\0"
377	},
378	{
379	1.5f,
380	" GL_SGIS_generate_mipmap \0"
381	/" GL_NV_blend_equare \0"/
382	" GL_ARB_depth_texture \0"
383	" GL_ARB_shadow \0"
384	" GL_EXT_fog_coord \0"
385	" GL_EXT_multi_draw_arrays \0"
386	" GL_ARB_point_parameters \0"
387	" GL_EXT_secondary_color \0"
388	" GL_EXT_blend_func_separate \0"
389	" GL_EXT_stencil_wrap \0"
390	" GL_ARB_texture_env_crossbar \0"
391	" GL_EXT_texture_lod_bias \0"
392	" GL_ARB_texture_mirrored_repeat \0"
393	" GL_ARB_window_pos \0"
394	"\0"
395	},
396	{
397	1.6f,
398	" GL_ARB_vertex_buffer_object \0"
399	" GL_ARB_occlusion_query \0"
400	" GL_EXT_shadow_funcs \0"
401	},
402	{
403	2.0f,
404	" GL_ARB_shader_objects \0" /??/
405	" GL_ARB_vertex_shader \0" /??/
406	" GL_ARB_fragment_shader \0" /??/
407	" GL_ARB_shading_language_100 \0" /??/
408	" GL_ARB_draw_buffers \0"
409	" GL_ARB_texture_non_power_of_two \0"
410	" GL_ARB_point_sprite \0"
411	" GL_ATI_separate_stencil \0"
412	" GL_EXT_stencil_two_side \0"
413	"\0"
414	},
415	{
416	2.1f,
417	" GL_ARB_pixel_buffer_object \0"
418	" GL_EXT_texture_sRGB \0"
419	"\0"
420	},
421	{
422	3.0f,
423	" GL_ARB_framebuffer_object \0"
424	" GL_ARB_map_buffer_range \0"
425	" GL_ARB_vertex_array_object \0"
426	"\0"
427	},
428	{
429	3.1f,
430	" GL_ARB_copy_buffer \0"
431	" GL_ARB_uniform_buffer_object \0"
432	"\0"
433	},
434	{
435	3.2f,
436	" GL_ARB_vertex_array_bgra \0"
437	" GL_ARB_draw_elements_base_vertex \0"
438	" GL_ARB_fragment_coord_conventions \0"
439	" GL_ARB_provoking_vertex \0"
440	" GL_ARB_seamless_cube_map \0"
441	" GL_ARB_texture_multisample \0"
442	" GL_ARB_depth_clamp \0"
443	" GL_ARB_sync \0"
444	" GL_ARB_geometry_shader4 \0" /??/
445	"\0"
446	},
447	{
448	3.3f,
449	" GL_ARB_blend_func_extended \0"
450	" GL_ARB_sampler_objects \0"
451	" GL_ARB_explicit_attrib_location \0"
452	" GL_ARB_occlusion_query2 \0"
453	" GL_ARB_shader_bit_encoding \0"
454	" GL_ARB_texture_rgb10_a2ui \0"
455	" GL_ARB_texture_swizzle \0"
456	" GL_ARB_timer_query \0"
457	" GL_ARB_vertex_type_2_10_10_10_rev \0"
458	"\0"
459	},
460	{
461	4.0f,
462	" GL_ARB_texture_query_lod \0"
463	" GL_ARB_draw_indirect \0"
464	" GL_ARB_gpu_shader5 \0"
465	" GL_ARB_gpu_shader_fp64 \0"
466	" GL_ARB_shader_subroutine \0"
467	" GL_ARB_tessellation_shader \0"
468	" GL_ARB_texture_buffer_object_rgb32 \0"
469	" GL_ARB_texture_cube_map_array \0"
470	" GL_ARB_texture_gather \0"
471	" GL_ARB_transform_feedback2 \0"
472	" GL_ARB_transform_feedback3 \0"
473	"\0"
474	},
475	{
476	4.1f,
477	" GL_ARB_ES2_compatibility \0"
478	" GL_ARB_get_program_binary \0"
479	" GL_ARB_separate_shader_objects \0"
480	" GL_ARB_shader_precision \0"
481	" GL_ARB_vertex_attrib_64bit \0"
482	" GL_ARB_viewport_array \0"
483	"\0"
484	}
485	};
486
487	uint32_t cPromoted = 0;
488	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
489	{
490	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
491	while (*pszExt)
492	{
493	# ifdef VBOX_STRICT
494	size_t cchExt = strlen(pszExt);
495	Assert(cchExt > 3);
496	Assert(pszExt[0] == ' ');
497	Assert(pszExt[1] != ' ');
498	Assert(pszExt[cchExt - 2] != ' ');
499	Assert(pszExt[cchExt - 1] == ' ');
500	# endif
501
502	if (strstr(*ppszExtensions, pszExt) == NULL)
503	{
504	if (cPromoted++ == 0)
505	{
506	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
507	AssertRCReturn(rc, rc);
508	}
509
510	rc = RTStrAAppend(ppszExtensions, pszExt);
511	AssertRCReturn(rc, rc);
512	}
513
514	pszExt = strchr(pszExt, '\0') + 1;
515	}
516	}
517	#endif
518
519	return VINF_SUCCESS;
520	}
521
522	/** Check whether this is an Intel GL driver.
523	*
524	* @returns true if this seems to be some Intel graphics.
525	*/
526	static bool vmsvga3dIsVendorIntel(void)
527	{
528	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
529	}
530
531	/**
532	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
533	*/
534	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
535	{
536	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
537	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
538	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
539	#else
540	NOREF(pThis);
541	NOREF(fOtherProfile);
542	#endif
543	}
544
545
546	/**
547	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
548	*/
549	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
550	char *pszBuf, size_t cbBuf, bool fOtherProfile)
551	{
552	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
553	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
554	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
555	while (*pszCur == ' ')
556	pszCur++;
557	if (!*pszCur)
558	return false;
559
560	const char *pszEnd = strchr(pszCur, ' ');
561	AssertReturn(pszEnd, false);
562	size_t cch = pszEnd - pszCur;
563	if (cch < cbBuf)
564	{
565	memcpy(pszBuf, pszCur, cch);
566	pszBuf[cch] = '\0';
567	}
568	else if (cbBuf > 0)
569	{
570	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
571	pszBuf[cbBuf - 1] = '\0';
572	}
573
574	ppvEnumCtx = (void )pszEnd;
575	return true;
576	}
577
578
579	/**
580	* Initializes the VMSVGA3D state during VGA device construction.
581	*
582	* Failure are generally not fatal, 3D support will just be disabled.
583	*
584	* @returns VBox status code.
585	* @param pThis The VGA device state where svga.p3dState will be modified.
586	*/
587	int vmsvga3dInit(PVGASTATE pThis)
588	{
589	int rc;
590
591	AssertCompile(GL_TRUE == 1);
592	AssertCompile(GL_FALSE == 0);
593
594	#ifdef VMSVGA3D_DYNAMIC_LOAD
595	rc = glLdrInit(pThis->pDevInsR3);
596	if (RT_FAILURE(rc))
597	{
598	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
599	return rc;
600	}
601	#endif
602
603	/*
604	* Load and resolve imports from the external shared libraries.
605	*/
606	RTERRINFOSTATIC ErrInfo;
607	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
608	if (RT_FAILURE(rc))
609	{
610	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
611	return rc;
612	}
613	#ifdef RT_OS_DARWIN
614	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
615	if (RT_FAILURE(rc))
616	{
617	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
618	return rc;
619	}
620	#endif
621
622	/*
623	* Allocate the state.
624	*/
625	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
626	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
627
628	#ifdef RT_OS_WINDOWS
629	/* Create event semaphore and async IO thread. */
630	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
631	rc = RTSemEventCreate(&pState->WndRequestSem);
632	if (RT_SUCCESS(rc))
633	{
634	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
635	"VMSVGA3DWND");
636	if (RT_SUCCESS(rc))
637	return VINF_SUCCESS;
638
639	/* bail out. */
640	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
641	RTSemEventDestroy(pState->WndRequestSem);
642	}
643	else
644	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
645	RTMemFree(pThis->svga.p3dState);
646	pThis->svga.p3dState = NULL;
647	return rc;
648	#else
649	return VINF_SUCCESS;
650	#endif
651	}
652
653	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
654	{
655	/* A strict approach to get a proc address as recommended by Khronos:
656	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
657	* - "If the function is an extension, we need to check to see if the extension is supported."
658	*/
659
660	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
661	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
662	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
663	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
664	} while(0)
665
666	/* Get an optional function address. LogRel on failure. */
667	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
668	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
669	if (!pState->ext.ProcName) \
670	{ \
671	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
672	AssertFailed(); \
673	} \
674	} while(0)
675
676	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
677	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
678	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
679	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
680	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
681	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
682	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
683	GLGETPROC_(PFNGLTEXSUBIMAGE3DPROC , glTexSubImage3D, "");
684	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
685	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
686	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
687	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC , glCompressedTexSubImage3D, "");
688	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
689	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
690	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
691	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
692	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
693	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
694	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
695	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
696	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
697	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
698	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
699	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
700	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
701	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
702	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
703	/* glGetProgramivARB determines implementation limits for the program
704	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
705	* It differs from glGetProgramiv, which returns a parameter from a program object.
706	*/
707	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
708	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
709	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
710	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
711	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
712	#endif
713	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
714	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
715	#endif
716	GLGETPROC_(PFNGLDRAWBUFFERSPROC , glDrawBuffers, "");
717	GLGETPROC_(PFNGLCREATESHADERPROC , glCreateShader, "");
718	GLGETPROC_(PFNGLSHADERSOURCEPROC , glShaderSource, "");
719	GLGETPROC_(PFNGLCOMPILESHADERPROC , glCompileShader, "");
720	GLGETPROC_(PFNGLGETSHADERIVPROC , glGetShaderiv, "");
721	GLGETPROC_(PFNGLGETSHADERINFOLOGPROC , glGetShaderInfoLog, "");
722	GLGETPROC_(PFNGLCREATEPROGRAMPROC , glCreateProgram, "");
723	GLGETPROC_(PFNGLATTACHSHADERPROC , glAttachShader, "");
724	GLGETPROC_(PFNGLLINKPROGRAMPROC , glLinkProgram, "");
725	GLGETPROC_(PFNGLGETPROGRAMIVPROC , glGetProgramiv, "");
726	GLGETPROC_(PFNGLGETPROGRAMINFOLOGPROC , glGetProgramInfoLog, "");
727	GLGETPROC_(PFNGLUSEPROGRAMPROC , glUseProgram, "");
728	GLGETPROC_(PFNGLGETUNIFORMLOCATIONPROC , glGetUniformLocation, "");
729	GLGETPROC_(PFNGLUNIFORM1IPROC , glUniform1i, "");
730	GLGETPROC_(PFNGLUNIFORM4FVPROC , glUniform4fv, "");
731	GLGETPROC_(PFNGLDETACHSHADERPROC , glDetachShader, "");
732	GLGETPROC_(PFNGLDELETESHADERPROC , glDeleteShader, "");
733	GLGETPROC_(PFNGLDELETEPROGRAMPROC , glDeleteProgram, "");
734
735	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
736	if ( pState->rsGLVersion >= 3.0f
737	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
738	{
739	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
740	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
741	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
742	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
743	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
744	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
745	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
746	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
747	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
748	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
749	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
750	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
751	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
752	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
753	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
754	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
755	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
756	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
757	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
758	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
759	}
760
761	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
762	if (pState->rsGLVersion >= 3.1f)
763	{
764	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
765	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
766	}
767	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
768	{
769	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
770	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
771	}
772	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
773	{
774	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
775	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
776	}
777
778	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
779	if ( pState->rsGLVersion >= 3.2f
780	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
781	{
782	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
783	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
784	}
785
786	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
787	if ( pState->rsGLVersion >= 3.2f
788	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
789	{
790	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
791	}
792
793	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
794	if (pState->rsGLVersion >= 3.3f)
795	{
796	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
797	}
798	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
799	{
800	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
801	}
802
803	#undef GLGETPROCOPT_
804	#undef GLGETPROC_
805
806	return VINF_SUCCESS;
807	}
808
809
810	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
811	int vmsvga3dPowerOn(PVGASTATE pThis)
812	{
813	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
814	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
815	PVMSVGA3DCONTEXT pContext;
816	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
817	PVMSVGA3DCONTEXT pOtherCtx;
818	#endif
819	int rc;
820
821	if (pState->rsGLVersion != 0.0)
822	return VINF_SUCCESS; /* already initialized (load state) */
823
824	/*
825	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
826	*/
827	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
828	AssertRCReturn(rc, rc);
829
830	pContext = pState->papContexts[1];
831	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
832
833	#ifdef VMSVGA3D_DYNAMIC_LOAD
834	/* Context is set and it is possible now to resolve extension functions. */
835	rc = glLdrGetExtFunctions(pThis->pDevInsR3);
836	if (RT_FAILURE(rc))
837	{
838	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
839	return rc;
840	}
841	#endif
842
843	LogRel(("VMSVGA3d: OpenGL version: %s\n"
844	"VMSVGA3d: OpenGL Vendor: %s\n"
845	"VMSVGA3d: OpenGL Renderer: %s\n"
846	"VMSVGA3d: OpenGL shader language version: %s\n",
847	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
848	glGetString(GL_SHADING_LANGUAGE_VERSION)));
849
850	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
851	AssertRCReturn(rc, rc);
852	vmsvga3dLogRelExtensions("", pState->pszExtensions);
853
854	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
855
856
857	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
858	/*
859	* Get the extension list for the alternative profile so we can better
860	* figure out the shader model and stuff.
861	*/
862	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
863	AssertLogRelRCReturn(rc, rc);
864	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
865
866	pOtherCtx = pState->papContexts[2];
867	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
868
869	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
870	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
871	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
872	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
873	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
874	glGetString(GL_SHADING_LANGUAGE_VERSION)));
875
876	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
877	AssertRCReturn(rc, rc);
878	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
879
880	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
881
882	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
883	#else
884	pState->pszOtherExtensions = (char *)"";
885	pState->rsOtherGLVersion = pState->rsGLVersion;
886	#endif
887
888	/*
889	* Resolve GL function pointers and store them in pState->ext.
890	*/
891	rc = vmsvga3dLoadGLFunctions(pState);
892	if (RT_FAILURE(rc))
893	{
894	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
895	return rc;
896	}
897
898	/*
899	* Initialize the capabilities with sensible defaults.
900	*/
901	pState->caps.maxActiveLights = 1;
902	pState->caps.maxTextures = 1;
903	pState->caps.maxClipDistances = 4;
904	pState->caps.maxColorAttachments = 1;
905	pState->caps.maxRectangleTextureSize = 2048;
906	pState->caps.maxTextureAnisotropy = 2;
907	pState->caps.maxVertexShaderInstructions = 1024;
908	pState->caps.maxFragmentShaderInstructions = 1024;
909	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
910	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
911	pState->caps.flPointSize[0] = 1;
912	pState->caps.flPointSize[1] = 1;
913
914	/*
915	* Query capabilities
916	*/
917	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
918	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
919	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
920	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
921	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
922	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
923	#else
924	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
925	#endif
926	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
927	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
928	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
929	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
930
931	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
932	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
933	&pState->caps.maxFragmentShaderTemps));
934	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
935	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
936	&pState->caps.maxFragmentShaderInstructions));
937	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
938	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
939	&pState->caps.maxVertexShaderTemps));
940	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
941	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
942	&pState->caps.maxVertexShaderInstructions));
943
944	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
945
946	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
947	* ARB Assembly Language
948	* These are done through testing the presence of extensions. You should test them in this order:
949	* GL_NV_gpu_program4: SM 4.0 or better.
950	* GL_NV_vertex_program3: SM 3.0 or better.
951	* GL_ARB_fragment_program: SM 2.0 or better.
952	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
953	*
954	*/
955	/** @todo distinguish between vertex and pixel shaders??? */
956	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
957	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
958	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
959	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
960	#else
961	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
962	#endif
963	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
964	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
965	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
966	{
967	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
968	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
969	}
970	else
971	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
972	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
973	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
974	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
975	)
976	{
977	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
978	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
979	}
980	else
981	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
982	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
983	{
984	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
985	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
986	}
987	else
988	{
989	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
990	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
991	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
992	}
993
994	/* Now check the shading language version, in case it indicates a higher supported version. */
995	if (v >= 3.30f)
996	{
997	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
998	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
999	}
1000	else
1001	if (v >= 1.20f)
1002	{
1003	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1004	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1005	}
1006
1007	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1008	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1009	{
1010	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1011	}
1012
1013	/*
1014	* Tweak capabilities.
1015	*/
1016	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1017	if ( pState->caps.maxVertexShaderTemps < 32
1018	&& vmsvga3dIsVendorIntel())
1019	pState->caps.maxVertexShaderTemps = 32;
1020
1021	#if 0
1022	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1023	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1024	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1025	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1026	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1027	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1028	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1029	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1030	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1031	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1032	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1033	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1034	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1035	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1036	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1037	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1038	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1039	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1040	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1041	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1042	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1043	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1044	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1045	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1046	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1047	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1048	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1049	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1050	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1051	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1052	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1053	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1054	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1055	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1056	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1057	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1058	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1059	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1060	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1061	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1062	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1063	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1064	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1065	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1066	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1067	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1068	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1069	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1070	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1071	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1072	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1073	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1074	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1075	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1076	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1077	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1078	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1079	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1080	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1081	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1082	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1083	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1084	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1085	#endif
1086
1087	LogRel(("VMSVGA3d: Capabilities:\n"));
1088	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1089	pState->caps.maxActiveLights, pState->caps.maxTextures));
1090	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1091	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1092	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1093	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1094	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1095	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1096	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1097	pState->caps.maxFragmentShaderTemps,
1098	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1099	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1100	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1101	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1102
1103
1104	/* Initialize the shader library. */
1105	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1106	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1107	rc = ShaderInitLib(&pState->ShaderIf);
1108	AssertRC(rc);
1109
1110	/* Cleanup */
1111	rc = vmsvga3dContextDestroy(pThis, 1);
1112	AssertRC(rc);
1113	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1114	rc = vmsvga3dContextDestroy(pThis, 2);
1115	AssertRC(rc);
1116	#endif
1117
1118	if ( pState->rsGLVersion < 3.0
1119	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1120	{
1121	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1122	return VERR_NOT_IMPLEMENTED;
1123	}
1124
1125	return VINF_SUCCESS;
1126	}
1127
1128	int vmsvga3dReset(PVGASTATE pThis)
1129	{
1130	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1131	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1132
1133	/* Destroy all leftover surfaces. */
1134	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1135	{
1136	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1137	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1138	}
1139
1140	/* Destroy all leftover contexts. */
1141	for (uint32_t i = 0; i < pState->cContexts; i++)
1142	{
1143	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1144	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1145	}
1146
1147	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1148	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1149
1150	return VINF_SUCCESS;
1151	}
1152
1153	int vmsvga3dTerminate(PVGASTATE pThis)
1154	{
1155	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1156	AssertReturn(pState, VERR_WRONG_ORDER);
1157	int rc;
1158
1159	rc = vmsvga3dReset(pThis);
1160	AssertRCReturn(rc, rc);
1161
1162	/* Terminate the shader library. */
1163	rc = ShaderDestroyLib();
1164	AssertRC(rc);
1165
1166	#ifdef RT_OS_WINDOWS
1167	/* Terminate the window creation thread. */
1168	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1169	AssertRCReturn(rc, rc);
1170
1171	RTSemEventDestroy(pState->WndRequestSem);
1172	#elif defined(RT_OS_DARWIN)
1173
1174	#elif defined(RT_OS_LINUX)
1175	/* signal to the thread that it is supposed to exit */
1176	pState->bTerminate = true;
1177	/* wait for it to terminate */
1178	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1179	AssertRC(rc);
1180	XCloseDisplay(pState->display);
1181	#endif
1182
1183	RTStrFree(pState->pszExtensions);
1184	pState->pszExtensions = NULL;
1185	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1186	RTStrFree(pState->pszOtherExtensions);
1187	#endif
1188	pState->pszOtherExtensions = NULL;
1189
1190	return VINF_SUCCESS;
1191	}
1192
1193
1194	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1195	{
1196	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1197	* redraw it. */
1198
1199	#ifdef RT_OS_DARWIN
1200	RT_NOREF(pOldViewport);
1201	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1202	if ( pState
1203	&& idScreen == 0
1204	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1205	{
1206	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1207	}
1208	#else
1209	RT_NOREF(pThis, idScreen, pOldViewport);
1210	#endif
1211	}
1212
1213
1214	/**
1215	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1216	* given surface format capability.
1217	*
1218	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1219	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1220	*
1221	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1222	* of implicit guest expectations:
1223	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1224	*/
1225	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1226	{
1227	uint32_t result = 0;
1228
1229	/** @todo missing:
1230	*
1231	* SVGA3DFORMAT_OP_PIXELSIZE
1232	*/
1233
1234	switch (idx3dCaps)
1235	{
1236	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1237	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1238	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1239	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1240	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1241	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1242	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1243	break;
1244
1245	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1246	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1247	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1248	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1249	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1250	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1251	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1252	break;
1253	}
1254
1255	/** @todo check hardware caps! */
1256	switch (idx3dCaps)
1257	{
1258	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1259	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1260	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1261	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1262	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1263	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1264	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1265	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1266	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1267	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1268	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1269	result \|= SVGA3DFORMAT_OP_TEXTURE
1270	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1271	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1272	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1273	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1274	\| SVGA3DFORMAT_OP_CUBETEXTURE
1275	\| SVGA3DFORMAT_OP_SRGBREAD
1276	\| SVGA3DFORMAT_OP_SRGBWRITE;
1277	break;
1278
1279	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1280	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1281	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1282	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1283	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1284	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1285	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1286	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1287	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1288	break;
1289
1290	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1291	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1292	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1293	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1294	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1295	result \|= SVGA3DFORMAT_OP_TEXTURE
1296	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1297	\| SVGA3DFORMAT_OP_CUBETEXTURE
1298	\| SVGA3DFORMAT_OP_SRGBREAD;
1299	break;
1300
1301	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1302	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1303	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1304	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1305	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1306	break;
1307
1308	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1309	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1310	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1311	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1312	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1313	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1314	result \|= SVGA3DFORMAT_OP_TEXTURE
1315	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1316	\| SVGA3DFORMAT_OP_CUBETEXTURE
1317	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1318	break;
1319
1320	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1321	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1322	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1323	result \|= SVGA3DFORMAT_OP_TEXTURE
1324	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1325	\| SVGA3DFORMAT_OP_CUBETEXTURE
1326	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1327	break;
1328
1329	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1330	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1331	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1332	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1333	\| SVGA3DFORMAT_OP_TEXTURE;
1334	break;
1335
1336	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1337	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1338	break;
1339	}
1340	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1341
1342	return result;
1343	}
1344
1345	#if 0 /* unused */
1346	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1347	{
1348	RT_NOREF(pState3D, idx3dCaps);
1349
1350	/** @todo test this somehow */
1351	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1352
1353	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1354	return result;
1355	}
1356	#endif
1357
1358
1359	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1360	{
1361	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1362	AssertReturn(pState, VERR_NO_MEMORY);
1363	int rc = VINF_SUCCESS;
1364
1365	*pu32Val = 0;
1366
1367	/*
1368	* The capabilities access by current (2015-03-01) linux sources (gallium,
1369	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1370	* aren't access.
1371	*/
1372
1373	switch (idx3dCaps)
1374	{
1375	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1376	case SVGA3D_DEVCAP_3D:
1377	pu32Val = 1; / boolean? */
1378	break;
1379
1380	case SVGA3D_DEVCAP_MAX_LIGHTS:
1381	*pu32Val = pState->caps.maxActiveLights;
1382	break;
1383
1384	case SVGA3D_DEVCAP_MAX_TEXTURES:
1385	*pu32Val = pState->caps.maxTextures;
1386	break;
1387
1388	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1389	*pu32Val = pState->caps.maxClipDistances;
1390	break;
1391
1392	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1393	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1394	*pu32Val = pState->caps.vertexShaderVersion;
1395	break;
1396
1397	case SVGA3D_DEVCAP_VERTEX_SHADER:
1398	/* boolean? */
1399	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1400	break;
1401
1402	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1403	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1404	*pu32Val = pState->caps.fragmentShaderVersion;
1405	break;
1406
1407	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1408	/* boolean? */
1409	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1410	break;
1411
1412	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1413	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1414	/* Must be obsolete by now; surface format caps specify the same thing. */
1415	rc = VERR_INVALID_PARAMETER;
1416	break;
1417
1418	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1419	break;
1420
1421	/*
1422	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1423	* return TRUE. Even on physical hardware that does not support
1424	* these formats natively, the SVGA3D device will provide an emulation
1425	* which should be invisible to the guest OS.
1426	*/
1427	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1428	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1429	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1430	*pu32Val = 1;
1431	break;
1432
1433	case SVGA3D_DEVCAP_QUERY_TYPES:
1434	break;
1435
1436	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1437	break;
1438
1439	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1440	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1441	AssertCompile(sizeof(uint32_t) == sizeof(float));
1442	(float )pu32Val = pState->caps.flPointSize[1];
1443	break;
1444
1445	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1446	/** @todo ?? */
1447	rc = VERR_INVALID_PARAMETER;
1448	break;
1449
1450	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1451	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1452	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1453	*pu32Val = pState->caps.maxRectangleTextureSize;
1454	break;
1455
1456	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1457	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1458	//*pu32Val = pCaps->MaxVolumeExtent;
1459	*pu32Val = 256;
1460	break;
1461
1462	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1463	pu32Val = 32768; / hardcoded in Wine */
1464	break;
1465
1466	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1467	//*pu32Val = pCaps->MaxTextureAspectRatio;
1468	break;
1469
1470	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1471	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1472	*pu32Val = pState->caps.maxTextureAnisotropy;
1473	break;
1474
1475	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1476	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1477	pu32Val = 0xFFFFF; / hardcoded in Wine */
1478	break;
1479
1480	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1481	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1482	*pu32Val = pState->caps.maxVertexShaderInstructions;
1483	break;
1484
1485	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1486	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1487	break;
1488
1489	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1490	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1491	*pu32Val = pState->caps.maxVertexShaderTemps;
1492	break;
1493
1494	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1495	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1496	*pu32Val = pState->caps.maxFragmentShaderTemps;
1497	break;
1498
1499	case SVGA3D_DEVCAP_TEXTURE_OPS:
1500	break;
1501
1502	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1503	break;
1504
1505	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1506	break;
1507
1508	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1509	break;
1510
1511	case SVGA3D_DEVCAP_SUPERSAMPLE:
1512	break;
1513
1514	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1515	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1516	break;
1517
1518	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1519	break;
1520
1521	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1522	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1523	*pu32Val = pState->caps.maxColorAttachments;
1524	break;
1525
1526	/*
1527	* This is the maximum number of SVGA context IDs that the guest
1528	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1529	*/
1530	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1531	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1532	break;
1533
1534	/*
1535	* This is the maximum number of SVGA surface IDs that the guest
1536	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1537	*/
1538	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1539	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1540	break;
1541
1542	#if 0 /* Appeared more recently, not yet implemented. */
1543	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1544	case SVGA3D_DEVCAP_LINE_AA:
1545	break;
1546	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1547	case SVGA3D_DEVCAP_LINE_STIPPLE:
1548	break;
1549	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1550	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1551	break;
1552	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1553	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1554	break;
1555	#endif
1556
1557	/*
1558	* Supported surface formats.
1559	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1560	*/
1561	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1562	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1563	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1564	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1565	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1566	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1567	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1568	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1569	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1570	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1571	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1572	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1573	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1574	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1575	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1576	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1577	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1578	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1579	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1580	break;
1581
1582	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1583	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1584	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1585	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1586	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1587	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1588	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1589	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1590	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1591	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1592	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1593	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1594	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1595	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1596	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1597	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1598	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1599	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1600	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1601	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1602	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1603	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1604	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1605	break;
1606
1607	/* Linux: Not referenced in current sources. */
1608	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1609	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1610	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1611	rc = VERR_INVALID_PARAMETER;
1612	*pu32Val = 0;
1613	break;
1614
1615	default:
1616	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1617	rc = VERR_INVALID_PARAMETER;
1618	break;
1619	}
1620
1621	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1622	return rc;
1623	}
1624
1625	/**
1626	* Convert SVGA format value to its OpenGL equivalent
1627	*
1628	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1629	* help from wined3dformat_from_d3dformat().
1630	*/
1631	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1632	{
1633	#if 0
1634	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1635	#else
1636	#define AssertTestFmt(f) do {} while(0)
1637	#endif
1638	switch (format)
1639	{
1640	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1641	pSurface->internalFormatGL = GL_RGB8;
1642	pSurface->formatGL = GL_BGRA;
1643	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1644	break;
1645	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1646	pSurface->internalFormatGL = GL_RGBA8;
1647	pSurface->formatGL = GL_BGRA;
1648	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1649	break;
1650	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1651	pSurface->internalFormatGL = GL_RGB5;
1652	pSurface->formatGL = GL_RGB;
1653	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1654	AssertTestFmt(SVGA3D_R5G6B5);
1655	break;
1656	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1657	pSurface->internalFormatGL = GL_RGB5;
1658	pSurface->formatGL = GL_BGRA;
1659	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1660	AssertTestFmt(SVGA3D_X1R5G5B5);
1661	break;
1662	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1663	pSurface->internalFormatGL = GL_RGB5_A1;
1664	pSurface->formatGL = GL_BGRA;
1665	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1666	AssertTestFmt(SVGA3D_A1R5G5B5);
1667	break;
1668	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1669	pSurface->internalFormatGL = GL_RGBA4;
1670	pSurface->formatGL = GL_BGRA;
1671	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1672	AssertTestFmt(SVGA3D_A4R4G4B4);
1673	break;
1674
1675	case SVGA3D_R8G8B8A8_UNORM:
1676	pSurface->internalFormatGL = GL_RGBA8;
1677	pSurface->formatGL = GL_RGBA;
1678	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1679	break;
1680
1681	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1682	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1683	pSurface->formatGL = GL_DEPTH_COMPONENT;
1684	pSurface->typeGL = GL_UNSIGNED_INT;
1685	break;
1686	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1687	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1688	pSurface->formatGL = GL_DEPTH_COMPONENT;
1689	pSurface->typeGL = GL_UNSIGNED_SHORT;
1690	AssertTestFmt(SVGA3D_Z_D16);
1691	break;
1692	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1693	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1694	pSurface->formatGL = GL_DEPTH_STENCIL;
1695	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1696	break;
1697	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1698	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1699	pSurface->formatGL = GL_DEPTH_STENCIL;
1700	pSurface->typeGL = GL_UNSIGNED_SHORT;
1701	/** @todo Wine sources hints at no hw support for this, so test this one! */
1702	AssertTestFmt(SVGA3D_Z_D15S1);
1703	break;
1704	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1705	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1706	pSurface->formatGL = GL_DEPTH_COMPONENT;
1707	pSurface->typeGL = GL_UNSIGNED_INT;
1708	AssertTestFmt(SVGA3D_Z_D24X8);
1709	break;
1710
1711	/* Advanced D3D9 depth formats. */
1712	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1713	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1714	pSurface->formatGL = GL_DEPTH_COMPONENT;
1715	pSurface->typeGL = GL_HALF_FLOAT;
1716	break;
1717
1718	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1719	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1720	pSurface->formatGL = GL_DEPTH_COMPONENT;
1721	pSurface->typeGL = GL_FLOAT; /* ??? */
1722	break;
1723
1724	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1725	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1726	pSurface->formatGL = GL_DEPTH_STENCIL;
1727	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1728	break;
1729
1730	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1731	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1732	pSurface->formatGL = GL_RGBA; /* not used */
1733	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1734	break;
1735
1736	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1737	/* "DXT2 and DXT3 are the same from an API perspective." */
1738	RT_FALL_THRU();
1739	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1740	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1741	pSurface->formatGL = GL_RGBA; /* not used */
1742	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1743	break;
1744
1745	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1746	/* "DXT4 and DXT5 are the same from an API perspective." */
1747	RT_FALL_THRU();
1748	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1749	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1750	pSurface->formatGL = GL_RGBA; /* not used */
1751	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1752	break;
1753
1754	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1755	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1756	pSurface->formatGL = GL_LUMINANCE;
1757	pSurface->typeGL = GL_UNSIGNED_BYTE;
1758	break;
1759
1760	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1761	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1762	pSurface->formatGL = GL_LUMINANCE;
1763	pSurface->typeGL = GL_UNSIGNED_SHORT;
1764	break;
1765
1766	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1767	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1768	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1769	pSurface->typeGL = GL_UNSIGNED_BYTE;
1770	break;
1771
1772	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1773	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1774	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1775	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1776	break;
1777
1778	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1779	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1780	pSurface->formatGL = GL_ALPHA;
1781	pSurface->typeGL = GL_UNSIGNED_BYTE;
1782	break;
1783
1784	#if 0
1785
1786	/* Bump-map formats */
1787	case SVGA3D_BUMPU8V8:
1788	return D3DFMT_V8U8;
1789	case SVGA3D_BUMPL6V5U5:
1790	return D3DFMT_L6V5U5;
1791	case SVGA3D_BUMPX8L8V8U8:
1792	return D3DFMT_X8L8V8U8;
1793	case SVGA3D_BUMPL8V8U8:
1794	/* No corresponding D3D9 equivalent. */
1795	AssertFailedReturn(D3DFMT_UNKNOWN);
1796	/* signed bump-map formats */
1797	case SVGA3D_V8U8:
1798	return D3DFMT_V8U8;
1799	case SVGA3D_Q8W8V8U8:
1800	return D3DFMT_Q8W8V8U8;
1801	case SVGA3D_CxV8U8:
1802	return D3DFMT_CxV8U8;
1803	/* mixed bump-map formats */
1804	case SVGA3D_X8L8V8U8:
1805	return D3DFMT_X8L8V8U8;
1806	case SVGA3D_A2W10V10U10:
1807	return D3DFMT_A2W10V10U10;
1808	#endif
1809
1810	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1811	pSurface->internalFormatGL = GL_RGBA16F;
1812	pSurface->formatGL = GL_RGBA;
1813	#if 0 /* bird: wine uses half float, sounds correct to me... */
1814	pSurface->typeGL = GL_FLOAT;
1815	#else
1816	pSurface->typeGL = GL_HALF_FLOAT;
1817	AssertTestFmt(SVGA3D_ARGB_S10E5);
1818	#endif
1819	break;
1820
1821	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1822	pSurface->internalFormatGL = GL_RGBA32F;
1823	pSurface->formatGL = GL_RGBA;
1824	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1825	break;
1826
1827	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1828	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1829	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1830	pSurface->formatGL = GL_RGBA;
1831	#else
1832	pSurface->formatGL = GL_BGRA;
1833	#endif
1834	pSurface->typeGL = GL_UNSIGNED_INT;
1835	AssertTestFmt(SVGA3D_A2R10G10B10);
1836	break;
1837
1838
1839	/* Single- and dual-component floating point formats */
1840	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1841	pSurface->internalFormatGL = GL_R16F;
1842	pSurface->formatGL = GL_RED;
1843	#if 0 /* bird: wine uses half float, sounds correct to me... */
1844	pSurface->typeGL = GL_FLOAT;
1845	#else
1846	pSurface->typeGL = GL_HALF_FLOAT;
1847	AssertTestFmt(SVGA3D_R_S10E5);
1848	#endif
1849	break;
1850	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1851	pSurface->internalFormatGL = GL_R32F;
1852	pSurface->formatGL = GL_RED;
1853	pSurface->typeGL = GL_FLOAT;
1854	break;
1855	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1856	pSurface->internalFormatGL = GL_RG16F;
1857	pSurface->formatGL = GL_RG;
1858	#if 0 /* bird: wine uses half float, sounds correct to me... */
1859	pSurface->typeGL = GL_FLOAT;
1860	#else
1861	pSurface->typeGL = GL_HALF_FLOAT;
1862	AssertTestFmt(SVGA3D_RG_S10E5);
1863	#endif
1864	break;
1865	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1866	pSurface->internalFormatGL = GL_RG32F;
1867	pSurface->formatGL = GL_RG;
1868	pSurface->typeGL = GL_FLOAT;
1869	break;
1870
1871	/*
1872	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1873	* the most efficient format to use when creating new surfaces
1874	* expressly for index or vertex data.
1875	*/
1876	case SVGA3D_BUFFER:
1877	pSurface->internalFormatGL = -1;
1878	pSurface->formatGL = -1;
1879	pSurface->typeGL = -1;
1880	break;
1881
1882	#if 0
1883	return D3DFMT_UNKNOWN;
1884
1885	case SVGA3D_V16U16:
1886	return D3DFMT_V16U16;
1887	#endif
1888
1889	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1890	pSurface->internalFormatGL = GL_RG16;
1891	pSurface->formatGL = GL_RG;
1892	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1893	pSurface->typeGL = GL_UNSIGNED_INT;
1894	#else
1895	pSurface->typeGL = GL_UNSIGNED_SHORT;
1896	AssertTestFmt(SVGA3D_G16R16);
1897	#endif
1898	break;
1899
1900	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1901	pSurface->internalFormatGL = GL_RGBA16;
1902	pSurface->formatGL = GL_RGBA;
1903	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1904	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1905	#else
1906	pSurface->typeGL = GL_UNSIGNED_SHORT;
1907	AssertTestFmt(SVGA3D_A16B16G16R16);
1908	#endif
1909	break;
1910
1911	case SVGA3D_R8G8B8A8_SNORM:
1912	pSurface->internalFormatGL = GL_RGB8;
1913	pSurface->formatGL = GL_BGRA;
1914	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1915	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1916	break;
1917	case SVGA3D_R16G16_UNORM:
1918	pSurface->internalFormatGL = GL_RG16;
1919	pSurface->formatGL = GL_RG;
1920	pSurface->typeGL = GL_UNSIGNED_SHORT;
1921	AssertTestFmt(SVGA3D_R16G16_UNORM);
1922	break;
1923
1924	/* Packed Video formats */
1925	case SVGA3D_UYVY:
1926	case SVGA3D_YUY2:
1927	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1928	pSurface->fEmulated = true;
1929	pSurface->internalFormatGL = GL_RGBA8;
1930	pSurface->formatGL = GL_BGRA;
1931	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1932	break;
1933
1934	#if 0
1935	/* Planar video formats */
1936	case SVGA3D_NV12:
1937	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1938
1939	/* Video format with alpha */
1940	case SVGA3D_AYUV:
1941	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1942
1943	case SVGA3D_BC4_UNORM:
1944	case SVGA3D_BC5_UNORM:
1945	/* Unknown; only in DX10 & 11 */
1946	break;
1947	#endif
1948	default:
1949	AssertMsgFailed(("Unsupported format %d\n", format));
1950	break;
1951	}
1952	#undef AssertTestFmt
1953	}
1954
1955
1956	#if 0
1957	/**
1958	* Convert SVGA multi sample count value to its D3D equivalent
1959	*/
1960	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1961	{
1962	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1963	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1964
1965	if (multisampleCount > 16)
1966	return D3DMULTISAMPLE_NONE;
1967
1968	/** @todo exact same mapping as d3d? */
1969	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1970	}
1971	#endif
1972
1973	/**
1974	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1975	*
1976	* @param pState The VMSVGA3d state.
1977	* @param pSurface The surface being destroyed.
1978	*/
1979	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1980	{
1981	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1982	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1983
1984	switch (pSurface->enmOGLResType)
1985	{
1986	case VMSVGA3D_OGLRESTYPE_BUFFER:
1987	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
1988	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1989	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1990	break;
1991
1992	case VMSVGA3D_OGLRESTYPE_TEXTURE:
1993	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
1994	glDeleteTextures(1, &pSurface->oglId.texture);
1995	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1996	if (pSurface->fEmulated)
1997	{
1998	if (pSurface->idEmulated)
1999	{
2000	glDeleteTextures(1, &pSurface->idEmulated);
2001	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2002	}
2003	}
2004	else
2005	{
2006	Assert(!pSurface->idEmulated);
2007	}
2008	break;
2009
2010	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2011	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2012	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2013	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2014	break;
2015
2016	default:
2017	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2018	("hint=%#x, type=%d\n",
2019	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2020	break;
2021	}
2022	}
2023
2024
2025	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2026	{
2027	for (uint32_t i = 0; i < cCopyBoxes; i++)
2028	{
2029	SVGA3dBox destBox, srcBox;
2030
2031	srcBox.x = pBox[i].srcx;
2032	srcBox.y = pBox[i].srcy;
2033	srcBox.z = pBox[i].srcz;
2034	srcBox.w = pBox[i].w;
2035	srcBox.h = pBox[i].h;
2036	srcBox.d = pBox[i].d;
2037
2038	destBox.x = pBox[i].x;
2039	destBox.y = pBox[i].y;
2040	destBox.z = pBox[i].z;
2041	destBox.w = pBox[i].w;
2042	destBox.h = pBox[i].h;
2043	destBox.d = pBox[i].d;
2044
2045	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2046	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2047	AssertRCReturn(rc, rc);
2048	}
2049	return VINF_SUCCESS;
2050	}
2051
2052
2053	/**
2054	* Save texture unpacking parameters and loads those appropriate for the given
2055	* surface.
2056	*
2057	* @param pState The VMSVGA3D state structure.
2058	* @param pContext The active context.
2059	* @param pSurface The surface.
2060	* @param pSave Where to save stuff.
2061	*/
2062	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2063	PVMSVGAPACKPARAMS pSave)
2064	{
2065	RT_NOREF(pState);
2066
2067	/*
2068	* Save (ignore errors, setting the defaults we want and avoids restore).
2069	*/
2070	pSave->iAlignment = 1;
2071	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2072	pSave->cxRow = 0;
2073	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2074
2075	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2076	pSave->cyImage = 0;
2077	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2078	Assert(pSave->cyImage == 0);
2079
2080	pSave->fSwapBytes = GL_FALSE;
2081	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2082	Assert(pSave->fSwapBytes == GL_FALSE);
2083
2084	pSave->fLsbFirst = GL_FALSE;
2085	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2086	Assert(pSave->fLsbFirst == GL_FALSE);
2087
2088	pSave->cSkipRows = 0;
2089	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2090	Assert(pSave->cSkipRows == 0);
2091
2092	pSave->cSkipPixels = 0;
2093	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2094	Assert(pSave->cSkipPixels == 0);
2095
2096	pSave->cSkipImages = 0;
2097	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2098	Assert(pSave->cSkipImages == 0);
2099
2100	VMSVGA3D_CLEAR_GL_ERRORS();
2101	#endif
2102
2103	/*
2104	* Setup unpack.
2105	*
2106	* Note! We use 1 as alignment here because we currently don't do any
2107	* aligning of line pitches anywhere.
2108	*/
2109	NOREF(pSurface);
2110	if (pSave->iAlignment != 1)
2111	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2112	if (pSave->cxRow != 0)
2113	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2114	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2115	if (pSave->cyImage != 0)
2116	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2117	if (pSave->fSwapBytes != 0)
2118	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2119	if (pSave->fLsbFirst != 0)
2120	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2121	if (pSave->cSkipRows != 0)
2122	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2123	if (pSave->cSkipPixels != 0)
2124	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2125	if (pSave->cSkipImages != 0)
2126	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2127	#endif
2128	}
2129
2130
2131	/**
2132	* Restores texture unpacking parameters.
2133	*
2134	* @param pState The VMSVGA3D state structure.
2135	* @param pContext The active context.
2136	* @param pSurface The surface.
2137	* @param pSave Where stuff was saved.
2138	*/
2139	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2140	PCVMSVGAPACKPARAMS pSave)
2141	{
2142	RT_NOREF(pState, pSurface);
2143
2144	if (pSave->iAlignment != 1)
2145	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2146	if (pSave->cxRow != 0)
2147	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2148	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2149	if (pSave->cyImage != 0)
2150	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2151	if (pSave->fSwapBytes != 0)
2152	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2153	if (pSave->fLsbFirst != 0)
2154	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2155	if (pSave->cSkipRows != 0)
2156	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2157	if (pSave->cSkipPixels != 0)
2158	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2159	if (pSave->cSkipImages != 0)
2160	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2161	#endif
2162	}
2163
2164	/**
2165	* Create D3D/OpenGL texture object for the specified surface.
2166	*
2167	* Surfaces are created when needed.
2168	*
2169	* @param pState The VMSVGA3d state.
2170	* @param pContext The context.
2171	* @param idAssociatedContext Probably the same as pContext->id.
2172	* @param pSurface The surface to create the texture for.
2173	*/
2174	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2175	PVMSVGA3DSURFACE pSurface)
2176	{
2177	RT_NOREF(idAssociatedContext);
2178
2179	LogFunc(("sid=%x\n", pSurface->id));
2180
2181	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2182
2183	/* Fugure out what kind of texture we are creating. */
2184	GLenum binding;
2185	GLenum target;
2186	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2187	{
2188	Assert(pSurface->cFaces == 6);
2189
2190	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2191	target = GL_TEXTURE_CUBE_MAP;
2192	}
2193	else
2194	{
2195	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2196	{
2197	binding = GL_TEXTURE_BINDING_3D;
2198	target = GL_TEXTURE_3D;
2199	}
2200	else
2201	{
2202	Assert(pSurface->cFaces == 1);
2203
2204	binding = GL_TEXTURE_BINDING_2D;
2205	target = GL_TEXTURE_2D;
2206	}
2207	}
2208
2209	/* All textures are created in the SharedCtx. */
2210	uint32_t idPrevCtx = pState->idActiveContext;
2211	pContext = &pState->SharedCtx;
2212	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2213
2214	glGenTextures(1, &pSurface->oglId.texture);
2215	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2216	if (pSurface->fEmulated)
2217	{
2218	glGenTextures(1, &pSurface->idEmulated);
2219	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2220	}
2221	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2222
2223	GLint activeTexture = 0;
2224	glGetIntegerv(binding, &activeTexture);
2225	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2226
2227	/* Must bind texture to the current context in order to change it. */
2228	glBindTexture(target, pSurface->oglId.texture);
2229	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2230
2231	/* Set the unpacking parameters. */
2232	VMSVGAPACKPARAMS SavedParams;
2233	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2234
2235	/** @todo Set the mip map generation filter settings. */
2236
2237	/* Set the mipmap base and max level parameters. */
2238	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2239	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2240	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2241	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2242
2243	if (pSurface->fDirty)
2244	LogFunc(("sync dirty texture\n"));
2245
2246	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2247	if (target == GL_TEXTURE_3D)
2248	{
2249	for (uint32_t i = 0; i < numMipLevels; ++i)
2250	{
2251	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2252	* exposing random host memory to the guest and helps a with the fedora 21 surface
2253	* corruption issues (launchpad, background, search field, login).
2254	*/
2255	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2256
2257	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2258	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2259
2260	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2261	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2262	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2263	{
2264	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2265	i,
2266	pSurface->internalFormatGL,
2267	pMipLevel->mipmapSize.width,
2268	pMipLevel->mipmapSize.height,
2269	pMipLevel->mipmapSize.depth,
2270	0,
2271	pMipLevel->cbSurface,
2272	pMipLevel->pSurfaceData);
2273	}
2274	else
2275	{
2276	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2277	i,
2278	pSurface->internalFormatGL,
2279	pMipLevel->mipmapSize.width,
2280	pMipLevel->mipmapSize.height,
2281	pMipLevel->mipmapSize.depth,
2282	0, /* border */
2283	pSurface->formatGL,
2284	pSurface->typeGL,
2285	pMipLevel->pSurfaceData);
2286	}
2287	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2288
2289	pMipLevel->fDirty = false;
2290	}
2291	}
2292	else if (target == GL_TEXTURE_CUBE_MAP)
2293	{
2294	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2295	{
2296	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2297
2298	for (uint32_t i = 0; i < numMipLevels; ++i)
2299	{
2300	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2301	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2302	Assert(pMipLevel->mipmapSize.depth == 1);
2303
2304	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2305	iFace, i, pMipLevel->fDirty));
2306
2307	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2308	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2309	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2310	{
2311	pState->ext.glCompressedTexImage2D(Face,
2312	i,
2313	pSurface->internalFormatGL,
2314	pMipLevel->mipmapSize.width,
2315	pMipLevel->mipmapSize.height,
2316	0,
2317	pMipLevel->cbSurface,
2318	pMipLevel->pSurfaceData);
2319	}
2320	else
2321	{
2322	glTexImage2D(Face,
2323	i,
2324	pSurface->internalFormatGL,
2325	pMipLevel->mipmapSize.width,
2326	pMipLevel->mipmapSize.height,
2327	0,
2328	pSurface->formatGL,
2329	pSurface->typeGL,
2330	pMipLevel->pSurfaceData);
2331	}
2332	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2333
2334	pMipLevel->fDirty = false;
2335	}
2336	}
2337	}
2338	else if (target == GL_TEXTURE_2D)
2339	{
2340	for (uint32_t i = 0; i < numMipLevels; ++i)
2341	{
2342	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2343	* exposing random host memory to the guest and helps a with the fedora 21 surface
2344	* corruption issues (launchpad, background, search field, login).
2345	*/
2346	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2347	Assert(pMipLevel->mipmapSize.depth == 1);
2348
2349	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2350	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2351
2352	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2353	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2354	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2355	{
2356	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2357	i,
2358	pSurface->internalFormatGL,
2359	pMipLevel->mipmapSize.width,
2360	pMipLevel->mipmapSize.height,
2361	0,
2362	pMipLevel->cbSurface,
2363	pMipLevel->pSurfaceData);
2364	}
2365	else
2366	{
2367	glTexImage2D(GL_TEXTURE_2D,
2368	i,
2369	pSurface->internalFormatGL,
2370	pMipLevel->mipmapSize.width,
2371	pMipLevel->mipmapSize.height,
2372	0,
2373	pSurface->formatGL,
2374	pSurface->typeGL,
2375	NULL);
2376	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2377
2378	if (pSurface->fEmulated)
2379	{
2380	/* Bind the emulated texture and init it. */
2381	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2382	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2383
2384	glTexImage2D(GL_TEXTURE_2D,
2385	i,
2386	pSurface->internalFormatGL,
2387	pMipLevel->mipmapSize.width,
2388	pMipLevel->mipmapSize.height,
2389	0,
2390	pSurface->formatGL,
2391	pSurface->typeGL,
2392	NULL);
2393	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2394	}
2395
2396	/* Fetch texture data: either to the actual or to the emulated texture.
2397	* The pSurfaceData buffer may be smaller than the entire texture
2398	* for emulated formats, in which case only part of the texture is synched.
2399	*/
2400	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2401	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2402	glTexSubImage2D(GL_TEXTURE_2D,
2403	i,
2404	0,
2405	0,
2406	cBlocksX,
2407	cBlocksY,
2408	pSurface->formatGL,
2409	pSurface->typeGL,
2410	pMipLevel->pSurfaceData);
2411	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2412
2413	if (pSurface->fEmulated)
2414	{
2415	/* Update the actual texture using the format converter. */
2416	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2417
2418	/* Rebind the actual texture. */
2419	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2420	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2421	}
2422	}
2423	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2424
2425	pMipLevel->fDirty = false;
2426	}
2427	}
2428
2429	pSurface->fDirty = false;
2430
2431	/* Restore unpacking parameters. */
2432	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2433
2434	/* Restore the old active texture. */
2435	glBindTexture(target, activeTexture);
2436	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2437
2438	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2439	pSurface->targetGL = target;
2440	pSurface->bindingGL = binding;
2441
2442	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2443	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2444	return VINF_SUCCESS;
2445	}
2446
2447
2448	/**
2449	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2450	*
2451	* @returns VBox status code.
2452	* @param pThis The VGA device instance.
2453	* @param pState The VMSVGA3d state.
2454	* @param pDstSurface The destination host surface.
2455	* @param uDstFace The destination face (valid).
2456	* @param uDstMipmap The destination mipmap level (valid).
2457	* @param pDstBox The destination box.
2458	* @param pSrcSurface The source host surface.
2459	* @param uSrcFace The destination face (valid).
2460	* @param uSrcMipmap The source mimap level (valid).
2461	* @param pSrcBox The source box.
2462	* @param enmMode The strecht blt mode .
2463	* @param pContext The VMSVGA3d context (already current for OGL).
2464	*/
2465	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2466	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2467	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2468	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2469	{
2470	RT_NOREF(pThis);
2471
2472	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2473	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2474
2475	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2476	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2477	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2478	{
2479	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2480	glAttachment = GL_DEPTH_ATTACHMENT;
2481	glMask = GL_DEPTH_BUFFER_BIT;
2482	}
2483
2484	/* Activate the read and draw framebuffer objects. */
2485	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2486	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2487	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2488	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2489
2490	/* Bind the source and destination objects to the right place. */
2491	GLenum textarget;
2492	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2493	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2494	else
2495	{
2496	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2497	textarget = GL_TEXTURE_2D;
2498	}
2499	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2500	pSrcSurface->oglId.texture, uSrcMipmap);
2501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2502
2503	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2504	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2505	else
2506	{
2507	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2508	textarget = GL_TEXTURE_2D;
2509	}
2510	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2511	pDstSurface->oglId.texture, uDstMipmap);
2512	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2513
2514	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2515	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2516	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2517	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2518	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2519
2520	pState->ext.glBlitFramebuffer(pSrcBox->x,
2521	pSrcBox->y,
2522	pSrcBox->x + pSrcBox->w, /* exclusive. */
2523	pSrcBox->y + pSrcBox->h,
2524	pDstBox->x,
2525	pDstBox->y,
2526	pDstBox->x + pDstBox->w, /* exclusive. */
2527	pDstBox->y + pDstBox->h,
2528	glMask,
2529	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2530	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2531
2532	/* Reset the frame buffer association */
2533	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2534	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2535
2536	return VINF_SUCCESS;
2537	}
2538
2539	/**
2540	* Save texture packing parameters and loads those appropriate for the given
2541	* surface.
2542	*
2543	* @param pState The VMSVGA3D state structure.
2544	* @param pContext The active context.
2545	* @param pSurface The surface.
2546	* @param pSave Where to save stuff.
2547	*/
2548	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2549	PVMSVGAPACKPARAMS pSave)
2550	{
2551	RT_NOREF(pState);
2552	/*
2553	* Save (ignore errors, setting the defaults we want and avoids restore).
2554	*/
2555	pSave->iAlignment = 1;
2556	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2557	pSave->cxRow = 0;
2558	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2559
2560	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2561	pSave->cyImage = 0;
2562	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2563	Assert(pSave->cyImage == 0);
2564
2565	pSave->fSwapBytes = GL_FALSE;
2566	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2567	Assert(pSave->fSwapBytes == GL_FALSE);
2568
2569	pSave->fLsbFirst = GL_FALSE;
2570	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2571	Assert(pSave->fLsbFirst == GL_FALSE);
2572
2573	pSave->cSkipRows = 0;
2574	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2575	Assert(pSave->cSkipRows == 0);
2576
2577	pSave->cSkipPixels = 0;
2578	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2579	Assert(pSave->cSkipPixels == 0);
2580
2581	pSave->cSkipImages = 0;
2582	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2583	Assert(pSave->cSkipImages == 0);
2584
2585	VMSVGA3D_CLEAR_GL_ERRORS();
2586	#endif
2587
2588	/*
2589	* Setup unpack.
2590	*
2591	* Note! We use 1 as alignment here because we currently don't do any
2592	* aligning of line pitches anywhere.
2593	*/
2594	NOREF(pSurface);
2595	if (pSave->iAlignment != 1)
2596	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2597	if (pSave->cxRow != 0)
2598	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2599	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2600	if (pSave->cyImage != 0)
2601	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2602	if (pSave->fSwapBytes != 0)
2603	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2604	if (pSave->fLsbFirst != 0)
2605	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2606	if (pSave->cSkipRows != 0)
2607	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2608	if (pSave->cSkipPixels != 0)
2609	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2610	if (pSave->cSkipImages != 0)
2611	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2612	#endif
2613	}
2614
2615
2616	/**
2617	* Restores texture packing parameters.
2618	*
2619	* @param pState The VMSVGA3D state structure.
2620	* @param pContext The active context.
2621	* @param pSurface The surface.
2622	* @param pSave Where stuff was saved.
2623	*/
2624	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2625	PCVMSVGAPACKPARAMS pSave)
2626	{
2627	RT_NOREF(pState, pSurface);
2628	if (pSave->iAlignment != 1)
2629	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2630	if (pSave->cxRow != 0)
2631	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2632	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2633	if (pSave->cyImage != 0)
2634	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2635	if (pSave->fSwapBytes != 0)
2636	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2637	if (pSave->fLsbFirst != 0)
2638	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2639	if (pSave->cSkipRows != 0)
2640	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2641	if (pSave->cSkipPixels != 0)
2642	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2643	if (pSave->cSkipImages != 0)
2644	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2645	#endif
2646	}
2647
2648
2649	/**
2650	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2651	*
2652	* @returns Failure status code or @a rc.
2653	* @param pThis The VGA device instance data.
2654	* @param pState The VMSVGA3d state.
2655	* @param pSurface The host surface.
2656	* @param pMipLevel Mipmap level. The caller knows it already.
2657	* @param uHostFace The host face (valid).
2658	* @param uHostMipmap The host mipmap level (valid).
2659	* @param GuestPtr The guest pointer.
2660	* @param cbGuestPitch The guest pitch.
2661	* @param transfer The transfer direction.
2662	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2663	* @param pContext The context (for OpenGL).
2664	* @param rc The current rc for all boxes.
2665	* @param iBox The current box number (for Direct 3D).
2666	*/
2667	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2668	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2669	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2670	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2671	{
2672	RT_NOREF(iBox);
2673
2674	switch (pSurface->enmOGLResType)
2675	{
2676	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2677	{
2678	uint32_t cbSurfacePitch;
2679	uint8_t *pDoubleBuffer;
2680	uint32_t offHst;
2681
2682	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2683	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2684	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2685	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2686
2687	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2688	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2689	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2690	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2691
2692	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2693	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2694	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2695
2696	GLenum texImageTarget;
2697	if (pSurface->targetGL == GL_TEXTURE_3D)
2698	{
2699	texImageTarget = GL_TEXTURE_3D;
2700	}
2701	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2702	{
2703	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2704	}
2705	else
2706	{
2707	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2708	texImageTarget = GL_TEXTURE_2D;
2709	}
2710
2711	/* The buffer must be large enough to hold entire texture in the OpenGL format.
2712	* Multiply by the width and height "reduction" factors.
2713	* This can allocate more memory than required, but it is simpler for now.
2714	* Actually cbBuf = cbGLPixel * pMipmapLevel->mipmapSize.width * pMipmapLevel->mipmapSize.height
2715	*/
2716	pDoubleBuffer = (uint8_t )RTMemAlloc(pMipLevel->cbSurface pSurface->cxBlock * pSurface->cyBlock);
2717	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2718
2719	if (transfer == SVGA3D_READ_HOST_VRAM)
2720	{
2721	GLint activeTexture;
2722
2723	/* Must bind texture to the current context in order to read it. */
2724	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2725	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2726
2727	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2728	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2729
2730	if (pSurface->fEmulated)
2731	{
2732	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2733	}
2734
2735	/* Set row length and alignment of the input data. */
2736	VMSVGAPACKPARAMS SavedParams;
2737	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2738
2739	glGetTexImage(texImageTarget,
2740	uHostMipmap,
2741	pSurface->formatGL,
2742	pSurface->typeGL,
2743	pDoubleBuffer);
2744	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2745
2746	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2747
2748	/* Restore the old active texture. */
2749	glBindTexture(pSurface->targetGL, activeTexture);
2750	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2751
2752	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2753	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2754	}
2755	else
2756	{
2757	/* The buffer will contain only the copied rectangle. */
2758	offHst = 0;
2759	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2760	}
2761
2762	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2763
2764	rc = vmsvgaGMRTransfer(pThis,
2765	transfer,
2766	pDoubleBuffer,
2767	pMipLevel->cbSurface,
2768	offHst,
2769	cbSurfacePitch,
2770	GuestPtr,
2771	offGst,
2772	cbGuestPitch,
2773	cBlocksX * pSurface->cbBlock,
2774	cBlocksY);
2775	AssertRC(rc);
2776
2777	/* Update the opengl surface data. */
2778	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2779	{
2780	GLint activeTexture = 0;
2781	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2782	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2783
2784	/* Must bind texture to the current context in order to change it. */
2785	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2786	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2787
2788	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2789
2790	/* Set row length and alignment of the input data. */
2791	VMSVGAPACKPARAMS SavedParams;
2792	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2793
2794	if (texImageTarget == GL_TEXTURE_3D)
2795	{
2796	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2797	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2798	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2799	{
2800	pState->ext.glCompressedTexSubImage3D(texImageTarget,
2801	uHostMipmap,
2802	pBox->x,
2803	pBox->y,
2804	pBox->z,
2805	pBox->w,
2806	pBox->h,
2807	pBox->d,
2808	pSurface->formatGL,
2809	pSurface->typeGL,
2810	pDoubleBuffer);
2811	}
2812	else
2813	{
2814	pState->ext.glTexSubImage3D(texImageTarget,
2815	uHostMipmap,
2816	u32HostBlockX,
2817	u32HostBlockY,
2818	pBox->z,
2819	cBlocksX,
2820	cBlocksY,
2821	pBox->d,
2822	pSurface->formatGL,
2823	pSurface->typeGL,
2824	pDoubleBuffer);
2825	}
2826	}
2827	else
2828	{
2829	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2830	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2831	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2832	{
2833	pState->ext.glCompressedTexSubImage2D(texImageTarget,
2834	uHostMipmap,
2835	pBox->x,
2836	pBox->y,
2837	pBox->w,
2838	pBox->h,
2839	pSurface->internalFormatGL,
2840	cbSurfacePitch * cBlocksY,
2841	pDoubleBuffer);
2842	}
2843	else
2844	{
2845	glTexSubImage2D(texImageTarget,
2846	uHostMipmap,
2847	u32HostBlockX,
2848	u32HostBlockY,
2849	cBlocksX,
2850	cBlocksY,
2851	pSurface->formatGL,
2852	pSurface->typeGL,
2853	pDoubleBuffer);
2854	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2855
2856	if (pSurface->fEmulated)
2857	{
2858	/* Convert the texture to the actual texture if necessary */
2859	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
2860	}
2861	}
2862	}
2863	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2864
2865	/* Restore old values. */
2866	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2867
2868	/* Restore the old active texture. */
2869	glBindTexture(pSurface->targetGL, activeTexture);
2870	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2871	}
2872
2873	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2874
2875	/* Free the double buffer. */
2876	RTMemFree(pDoubleBuffer);
2877	break;
2878	}
2879
2880	case VMSVGA3D_OGLRESTYPE_BUFFER:
2881	{
2882	/* Buffers are uncompressed. */
2883	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2884
2885	/* Caller already clipped pBox and buffers are 1-dimensional. */
2886	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2887
2888	VMSVGA3D_CLEAR_GL_ERRORS();
2889	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2890	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2891	{
2892	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2893	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2894	if (RT_LIKELY(pbData != NULL))
2895	{
2896	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2897	GLint cbStrictBufSize;
2898	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2899	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2900	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2901	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2902	#endif
2903	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2904	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2905	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2906	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2907
2908	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2909	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
2910
2911	rc = vmsvgaGMRTransfer(pThis,
2912	transfer,
2913	pbData,
2914	pMipLevel->cbSurface,
2915	offHst,
2916	pMipLevel->cbSurfacePitch,
2917	GuestPtr,
2918	pBox->srcx * pSurface->cbBlock,
2919	cbGuestPitch,
2920	cbWidth,
2921	pBox->h);
2922	AssertRC(rc);
2923
2924	Log4(("Buffer content (updated at [0x%x;0x%x):\n%.*Rhxd\n", offHst, offHst + cbWidth, pMipLevel->cbSurface, pbData));
2925
2926	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2927	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2928	}
2929	else
2930	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2931	}
2932	else
2933	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2934	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2935	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2936	break;
2937	}
2938
2939	default:
2940	AssertFailed();
2941	break;
2942	}
2943
2944	return rc;
2945	}
2946
2947	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2948	{
2949	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2950	PVMSVGA3DSURFACE pSurface;
2951	int rc = VINF_SUCCESS;
2952	PVMSVGA3DCONTEXT pContext;
2953	uint32_t cid;
2954	GLint activeTexture = 0;
2955
2956	AssertReturn(pState, VERR_NO_MEMORY);
2957
2958	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2959	AssertRCReturn(rc, rc);
2960
2961	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2962	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2963	pSurface->autogenFilter = filter;
2964
2965	LogFunc(("sid=%x filter=%d\n", sid, filter));
2966
2967	cid = SVGA3D_INVALID_ID;
2968	pContext = &pState->SharedCtx;
2969	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2970
2971	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2972	{
2973	/* Unknown surface type; turn it into a texture. */
2974	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2975	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2976	AssertRCReturn(rc, rc);
2977	}
2978	else
2979	{
2980	/** @todo new filter */
2981	AssertFailed();
2982	}
2983
2984	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2985	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2986
2987	/* Must bind texture to the current context in order to change it. */
2988	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2989	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2990
2991	/* Generate the mip maps. */
2992	pState->ext.glGenerateMipmap(pSurface->targetGL);
2993	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2994
2995	/* Restore the old texture. */
2996	glBindTexture(pSurface->targetGL, activeTexture);
2997	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2998
2999	return VINF_SUCCESS;
3000	}
3001
3002
3003	#ifdef RT_OS_LINUX
3004	/**
3005	* X11 event handling thread.
3006	*
3007	* @returns VINF_SUCCESS (ignored)
3008	* @param hThreadSelf thread handle
3009	* @param pvUser pointer to pState structure
3010	*/
3011	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3012	{
3013	RT_NOREF(hThreadSelf);
3014	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3015	while (!pState->bTerminate)
3016	{
3017	while (XPending(pState->display) > 0)
3018	{
3019	XEvent event;
3020	XNextEvent(pState->display, &event);
3021
3022	switch (event.type)
3023	{
3024	default:
3025	break;
3026	}
3027	}
3028	/* sleep for 16ms to not burn too many cycles */
3029	RTThreadSleep(16);
3030	}
3031	return VINF_SUCCESS;
3032	}
3033	#endif // RT_OS_LINUX
3034
3035
3036	/**
3037	* Create a new 3d context
3038	*
3039	* @returns VBox status code.
3040	* @param pThis VGA device instance data.
3041	* @param cid Context id
3042	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3043	*/
3044	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3045	{
3046	int rc;
3047	PVMSVGA3DCONTEXT pContext;
3048	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3049
3050	AssertReturn(pState, VERR_NO_MEMORY);
3051	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3052	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3053	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3054	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3055	#endif
3056
3057	Log(("vmsvga3dContextDefine id %x\n", cid));
3058
3059	if (cid == VMSVGA3D_SHARED_CTX_ID)
3060	pContext = &pState->SharedCtx;
3061	else
3062	{
3063	if (cid >= pState->cContexts)
3064	{
3065	/* Grow the array. */
3066	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3067	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3068	AssertReturn(pvNew, VERR_NO_MEMORY);
3069	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3070	while (pState->cContexts < cNew)
3071	{
3072	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3073	AssertReturn(pContext, VERR_NO_MEMORY);
3074	pContext->id = SVGA3D_INVALID_ID;
3075	pState->papContexts[pState->cContexts++] = pContext;
3076	}
3077	}
3078	/* If one already exists with this id, then destroy it now. */
3079	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3080	vmsvga3dContextDestroy(pThis, cid);
3081
3082	pContext = pState->papContexts[cid];
3083	}
3084
3085	/*
3086	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3087	*/
3088	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3089	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3090	{
3091	pSharedCtx = &pState->SharedCtx;
3092	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3093	{
3094	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3095	AssertLogRelRCReturn(rc, rc);
3096
3097	/* Create resources which use the shared context. */
3098	vmsvga3dOnSharedContextDefine(pState);
3099	}
3100	}
3101
3102	/*
3103	* Initialize the context.
3104	*/
3105	memset(pContext, 0, sizeof(*pContext));
3106	pContext->id = cid;
3107	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3108	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3109
3110	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3111	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3112	pContext->idFramebuffer = OPENGL_INVALID_ID;
3113	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3114	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3115
3116	rc = ShaderContextCreate(&pContext->pShaderContext);
3117	AssertRCReturn(rc, rc);
3118
3119	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3120	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3121
3122	#ifdef RT_OS_WINDOWS
3123	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3124	* to present the rendered image. Rendered images from the guest will be copied to
3125	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3126	* system memory in the guest VRAM.
3127	*/
3128	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3129	AssertRCReturn(rc, rc);
3130
3131	pContext->hdc = GetDC(pContext->hwnd);
3132	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3133
3134	PIXELFORMATDESCRIPTOR pfd = {
3135	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3136	1, /* version number */
3137	PFD_DRAW_TO_WINDOW \| /* support window */
3138	PFD_SUPPORT_OPENGL, /* support OpenGL */
3139	PFD_TYPE_RGBA, /* RGBA type */
3140	24, /* 24-bit color depth */
3141	0, 0, 0, 0, 0, 0, /* color bits ignored */
3142	8, /* alpha buffer */
3143	0, /* shift bit ignored */
3144	0, /* no accumulation buffer */
3145	0, 0, 0, 0, /* accum bits ignored */
3146	16, /* set depth buffer */
3147	16, /* set stencil buffer */
3148	0, /* no auxiliary buffer */
3149	PFD_MAIN_PLANE, /* main layer */
3150	0, /* reserved */
3151	0, 0, 0 /* layer masks ignored */
3152	};
3153	int pixelFormat;
3154	BOOL ret;
3155
3156	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3157	/** @todo is this really necessary?? */
3158	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3159	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3160
3161	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3162	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3163
3164	pContext->hglrc = wglCreateContext(pContext->hdc);
3165	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3166
3167	if (pSharedCtx)
3168	{
3169	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3170	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3171	}
3172
3173	#elif defined(RT_OS_DARWIN)
3174	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3175
3176	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3177	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3178	NULL,
3179	4, 4,
3180	pShareContext, pContext->fOtherProfile);
3181
3182	#else
3183	if (pState->display == NULL)
3184	{
3185	/* get an X display and make sure we have glX 1.3 */
3186	pState->display = XOpenDisplay(0);
3187	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3188	int glxMajor, glxMinor;
3189	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3190	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3191	/* start our X event handling thread */
3192	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3193	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3194	}
3195
3196	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3197	/* Create a small 4x4 window required for GL context. */
3198	int attrib[] =
3199	{
3200	GLX_RGBA,
3201	GLX_RED_SIZE, 1,
3202	GLX_GREEN_SIZE, 1,
3203	GLX_BLUE_SIZE, 1,
3204	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3205	GLX_DOUBLEBUFFER,
3206	None
3207	};
3208	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3209	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3210	XSetWindowAttributes swa;
3211	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3212	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3213	swa.border_pixel = 0;
3214	swa.background_pixel = 0;
3215	swa.event_mask = StructureNotifyMask;
3216	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3217	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3218	0, 0, 4, 4,
3219	0, vi->depth, InputOutput,
3220	vi->visual, flags, &swa);
3221	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3222
3223	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3224
3225	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3226	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3227	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3228	#endif
3229
3230	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3231
3232	/* NULL during the first PowerOn call. */
3233	if (pState->ext.glGenFramebuffers)
3234	{
3235	/* Create a framebuffer object for this context. */
3236	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3237	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3238
3239	/* Bind the object to the framebuffer target. */
3240	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3241	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3242
3243	/* Create read and draw framebuffer objects for this context. */
3244	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3246
3247	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3249
3250	}
3251	#if 0
3252	/** @todo move to shader lib!!! */
3253	/* Clear the screen */
3254	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3255
3256	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3257	glClearIndex(0);
3258	glClearDepth(1);
3259	glClearStencil(0xffff);
3260	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3261	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3262	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3263	if (pState->ext.glProvokingVertex)
3264	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3265	/** @todo move to shader lib!!! */
3266	#endif
3267	return VINF_SUCCESS;
3268	}
3269
3270
3271	/**
3272	* Create a new 3d context
3273	*
3274	* @returns VBox status code.
3275	* @param pThis VGA device instance data.
3276	* @param cid Context id
3277	*/
3278	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3279	{
3280	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3281	}
3282
3283	/**
3284	* Destroys a 3d context.
3285	*
3286	* @returns VBox status code.
3287	* @param pThis VGA device instance data.
3288	* @param pContext The context to destroy.
3289	* @param cid Context id
3290	*/
3291	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3292	{
3293	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3294	AssertReturn(pState, VERR_NO_MEMORY);
3295	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3296	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3297	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3298
3299	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3300
3301	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
3302	{
3303	/* Delete resources which use the shared context. */
3304	vmsvga3dOnSharedContextDestroy(pState);
3305	}
3306
3307	/* Destroy all leftover pixel shaders. */
3308	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3309	{
3310	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3311	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3312	}
3313	if (pContext->paPixelShader)
3314	RTMemFree(pContext->paPixelShader);
3315
3316	/* Destroy all leftover vertex shaders. */
3317	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3318	{
3319	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3320	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3321	}
3322	if (pContext->paVertexShader)
3323	RTMemFree(pContext->paVertexShader);
3324
3325	if (pContext->state.paVertexShaderConst)
3326	RTMemFree(pContext->state.paVertexShaderConst);
3327	if (pContext->state.paPixelShaderConst)
3328	RTMemFree(pContext->state.paPixelShaderConst);
3329
3330	if (pContext->pShaderContext)
3331	{
3332	int rc = ShaderContextDestroy(pContext->pShaderContext);
3333	AssertRC(rc);
3334	}
3335
3336	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3337	{
3338	/* Unbind the object from the framebuffer target. */
3339	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3340	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3341	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3342	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3343
3344	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3345	{
3346	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3347	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3348	}
3349	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3350	{
3351	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3352	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3353	}
3354	}
3355
3356	vmsvga3dOcclusionQueryDelete(pState, pContext);
3357
3358	#ifdef RT_OS_WINDOWS
3359	wglMakeCurrent(pContext->hdc, NULL);
3360	wglDeleteContext(pContext->hglrc);
3361	ReleaseDC(pContext->hwnd, pContext->hdc);
3362
3363	/* Destroy the window we've created. */
3364	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3365	AssertRC(rc);
3366	#elif defined(RT_OS_DARWIN)
3367	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3368	#elif defined(RT_OS_LINUX)
3369	glXMakeCurrent(pState->display, None, NULL);
3370	glXDestroyContext(pState->display, pContext->glxContext);
3371	XDestroyWindow(pState->display, pContext->window);
3372	#endif
3373
3374	memset(pContext, 0, sizeof(*pContext));
3375	pContext->id = SVGA3D_INVALID_ID;
3376
3377	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3378	return VINF_SUCCESS;
3379	}
3380
3381	/**
3382	* Destroy an existing 3d context
3383	*
3384	* @returns VBox status code.
3385	* @param pThis VGA device instance data.
3386	* @param cid Context id
3387	*/
3388	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3389	{
3390	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3391	AssertReturn(pState, VERR_WRONG_ORDER);
3392
3393	/*
3394	* Resolve the context and hand it to the common worker function.
3395	*/
3396	if ( cid < pState->cContexts
3397	&& pState->papContexts[cid]->id == cid)
3398	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3399
3400	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3401	return VINF_SUCCESS;
3402	}
3403
3404	/**
3405	* Worker for vmsvga3dChangeMode that resizes a context.
3406	*
3407	* @param pThis The VGA device instance data.
3408	* @param pState The VMSVGA3d state.
3409	* @param pContext The context.
3410	*/
3411	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3412	{
3413	RT_NOREF3(pThis, pState, pContext);
3414	/* Do nothing. The window is not used for presenting. */
3415	}
3416
3417	/* Handle resize */
3418	int vmsvga3dChangeMode(PVGASTATE pThis)
3419	{
3420	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3421	AssertReturn(pState, VERR_NO_MEMORY);
3422
3423	/* Resize the shared context too. */
3424	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3425	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3426
3427	/* Resize all active contexts. */
3428	for (uint32_t i = 0; i < pState->cContexts; i++)
3429	{
3430	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3431	if (pContext->id != SVGA3D_INVALID_ID)
3432	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3433	}
3434
3435	return VINF_SUCCESS;
3436	}
3437
3438
3439	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3440	{
3441	PVMSVGA3DCONTEXT pContext;
3442	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3443	AssertReturn(pState, VERR_NO_MEMORY);
3444	bool fModelViewChanged = false;
3445
3446	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3447
3448	if ( cid >= pState->cContexts
3449	\|\| pState->papContexts[cid]->id != cid)
3450	{
3451	Log(("vmsvga3dSetTransform invalid context id!\n"));
3452	return VERR_INVALID_PARAMETER;
3453	}
3454
3455	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
3456
3457	pContext = pState->papContexts[cid];
3458	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3459
3460	/* Save this matrix for vm state save/restore. */
3461	pContext->state.aTransformState[type].fValid = true;
3462	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3463	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3464
3465	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)));
3466	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)));
3467	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)));
3468	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)));
3469
3470	switch (type)
3471	{
3472	case SVGA3D_TRANSFORM_VIEW:
3473	/* View * World = Model View */
3474	glMatrixMode(GL_MODELVIEW);
3475	glLoadMatrixf(matrix);
3476	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3477	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3479	fModelViewChanged = true;
3480	break;
3481
3482	case SVGA3D_TRANSFORM_PROJECTION:
3483	{
3484	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3485	AssertRCReturn(rc, rc);
3486	break;
3487	}
3488
3489	case SVGA3D_TRANSFORM_TEXTURE0:
3490	glMatrixMode(GL_TEXTURE);
3491	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3492	glLoadMatrixf(matrix);
3493	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3494	break;
3495
3496	case SVGA3D_TRANSFORM_TEXTURE1:
3497	case SVGA3D_TRANSFORM_TEXTURE2:
3498	case SVGA3D_TRANSFORM_TEXTURE3:
3499	case SVGA3D_TRANSFORM_TEXTURE4:
3500	case SVGA3D_TRANSFORM_TEXTURE5:
3501	case SVGA3D_TRANSFORM_TEXTURE6:
3502	case SVGA3D_TRANSFORM_TEXTURE7:
3503	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3504	return VERR_INVALID_PARAMETER;
3505
3506	case SVGA3D_TRANSFORM_WORLD:
3507	/* View * World = Model View */
3508	glMatrixMode(GL_MODELVIEW);
3509	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3510	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3511	else
3512	glLoadIdentity();
3513	glMultMatrixf(matrix);
3514	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3515	fModelViewChanged = true;
3516	break;
3517
3518	case SVGA3D_TRANSFORM_WORLD1:
3519	case SVGA3D_TRANSFORM_WORLD2:
3520	case SVGA3D_TRANSFORM_WORLD3:
3521	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3522	return VERR_INVALID_PARAMETER;
3523
3524	default:
3525	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3526	return VERR_INVALID_PARAMETER;
3527	}
3528
3529	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3530	if (fModelViewChanged)
3531	{
3532	/* Reprogram the clip planes. */
3533	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3534	{
3535	if (pContext->state.aClipPlane[j].fValid == true)
3536	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3537	}
3538
3539	/* Reprogram the light data. */
3540	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3541	{
3542	if (pContext->state.aLightData[j].fValidData == true)
3543	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3544	}
3545	}
3546
3547	return VINF_SUCCESS;
3548	}
3549
3550	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3551	{
3552	PVMSVGA3DCONTEXT pContext;
3553	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3554	AssertReturn(pState, VERR_NO_MEMORY);
3555
3556	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3557
3558	if ( cid >= pState->cContexts
3559	\|\| pState->papContexts[cid]->id != cid)
3560	{
3561	Log(("vmsvga3dSetZRange invalid context id!\n"));
3562	return VERR_INVALID_PARAMETER;
3563	}
3564	pContext = pState->papContexts[cid];
3565	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3566
3567	pContext->state.zRange = zRange;
3568	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3569
3570	if (zRange.min < -1.0)
3571	zRange.min = -1.0;
3572	if (zRange.max > 1.0)
3573	zRange.max = 1.0;
3574
3575	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3576	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3577	return VINF_SUCCESS;
3578	}
3579
3580	/**
3581	* Convert SVGA blend op value to its OpenGL equivalent
3582	*/
3583	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3584	{
3585	switch (blendOp)
3586	{
3587	case SVGA3D_BLENDOP_ZERO:
3588	return GL_ZERO;
3589	case SVGA3D_BLENDOP_ONE:
3590	return GL_ONE;
3591	case SVGA3D_BLENDOP_SRCCOLOR:
3592	return GL_SRC_COLOR;
3593	case SVGA3D_BLENDOP_INVSRCCOLOR:
3594	return GL_ONE_MINUS_SRC_COLOR;
3595	case SVGA3D_BLENDOP_SRCALPHA:
3596	return GL_SRC_ALPHA;
3597	case SVGA3D_BLENDOP_INVSRCALPHA:
3598	return GL_ONE_MINUS_SRC_ALPHA;
3599	case SVGA3D_BLENDOP_DESTALPHA:
3600	return GL_DST_ALPHA;
3601	case SVGA3D_BLENDOP_INVDESTALPHA:
3602	return GL_ONE_MINUS_DST_ALPHA;
3603	case SVGA3D_BLENDOP_DESTCOLOR:
3604	return GL_DST_COLOR;
3605	case SVGA3D_BLENDOP_INVDESTCOLOR:
3606	return GL_ONE_MINUS_DST_COLOR;
3607	case SVGA3D_BLENDOP_SRCALPHASAT:
3608	return GL_SRC_ALPHA_SATURATE;
3609	case SVGA3D_BLENDOP_BLENDFACTOR:
3610	return GL_CONSTANT_COLOR;
3611	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3612	return GL_ONE_MINUS_CONSTANT_COLOR;
3613	default:
3614	AssertFailed();
3615	return GL_ONE;
3616	}
3617	}
3618
3619	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3620	{
3621	switch (blendEq)
3622	{
3623	case SVGA3D_BLENDEQ_ADD:
3624	return GL_FUNC_ADD;
3625	case SVGA3D_BLENDEQ_SUBTRACT:
3626	return GL_FUNC_SUBTRACT;
3627	case SVGA3D_BLENDEQ_REVSUBTRACT:
3628	return GL_FUNC_REVERSE_SUBTRACT;
3629	case SVGA3D_BLENDEQ_MINIMUM:
3630	return GL_MIN;
3631	case SVGA3D_BLENDEQ_MAXIMUM:
3632	return GL_MAX;
3633	default:
3634	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3635	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3636	return GL_FUNC_ADD;
3637	}
3638	}
3639
3640	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3641	{
3642	switch (cmpFunc)
3643	{
3644	case SVGA3D_CMP_NEVER:
3645	return GL_NEVER;
3646	case SVGA3D_CMP_LESS:
3647	return GL_LESS;
3648	case SVGA3D_CMP_EQUAL:
3649	return GL_EQUAL;
3650	case SVGA3D_CMP_LESSEQUAL:
3651	return GL_LEQUAL;
3652	case SVGA3D_CMP_GREATER:
3653	return GL_GREATER;
3654	case SVGA3D_CMP_NOTEQUAL:
3655	return GL_NOTEQUAL;
3656	case SVGA3D_CMP_GREATEREQUAL:
3657	return GL_GEQUAL;
3658	case SVGA3D_CMP_ALWAYS:
3659	return GL_ALWAYS;
3660	default:
3661	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3662	return GL_LESS;
3663	}
3664	}
3665
3666	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3667	{
3668	switch (stencilOp)
3669	{
3670	case SVGA3D_STENCILOP_KEEP:
3671	return GL_KEEP;
3672	case SVGA3D_STENCILOP_ZERO:
3673	return GL_ZERO;
3674	case SVGA3D_STENCILOP_REPLACE:
3675	return GL_REPLACE;
3676	case SVGA3D_STENCILOP_INCRSAT:
3677	return GL_INCR_WRAP;
3678	case SVGA3D_STENCILOP_DECRSAT:
3679	return GL_DECR_WRAP;
3680	case SVGA3D_STENCILOP_INVERT:
3681	return GL_INVERT;
3682	case SVGA3D_STENCILOP_INCR:
3683	return GL_INCR;
3684	case SVGA3D_STENCILOP_DECR:
3685	return GL_DECR;
3686	default:
3687	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3688	return GL_KEEP;
3689	}
3690	}
3691
3692	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3693	{
3694	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3695	PVMSVGA3DCONTEXT pContext;
3696	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3697	AssertReturn(pState, VERR_NO_MEMORY);
3698
3699	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3700
3701	if ( cid >= pState->cContexts
3702	\|\| pState->papContexts[cid]->id != cid)
3703	{
3704	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3705	return VERR_INVALID_PARAMETER;
3706	}
3707
3708	pContext = pState->papContexts[cid];
3709	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3710
3711	for (unsigned i = 0; i < cRenderStates; i++)
3712	{
3713	GLenum enableCap = ~(GLenum)0;
3714	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3715	/* Save the render state for vm state saving. */
3716	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
3717	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3718
3719	switch (pRenderState[i].state)
3720	{
3721	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3722	enableCap = GL_DEPTH_TEST;
3723	val = pRenderState[i].uintValue;
3724	break;
3725
3726	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3727	glDepthMask(!!pRenderState[i].uintValue);
3728	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3729	break;
3730
3731	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3732	enableCap = GL_ALPHA_TEST;
3733	val = pRenderState[i].uintValue;
3734	break;
3735
3736	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3737	enableCap = GL_DITHER;
3738	val = pRenderState[i].uintValue;
3739	break;
3740
3741	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3742	enableCap = GL_FOG;
3743	val = pRenderState[i].uintValue;
3744	break;
3745
3746	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3747	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3748	break;
3749
3750	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3751	enableCap = GL_LIGHTING;
3752	val = pRenderState[i].uintValue;
3753	break;
3754
3755	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3756	/* not applicable */
3757	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3758	break;
3759
3760	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3761	enableCap = GL_POINT_SPRITE_ARB;
3762	val = pRenderState[i].uintValue;
3763	break;
3764
3765	case SVGA3D_RS_POINTSIZE: /* float */
3766	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3767	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3768	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3769	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3770	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3771
3772	glPointSize(pRenderState[i].floatValue);
3773	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3774	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3775	break;
3776
3777	case SVGA3D_RS_POINTSIZEMIN: /* float */
3778	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3779	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3780	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3781	break;
3782
3783	case SVGA3D_RS_POINTSIZEMAX: /* float */
3784	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3785	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3786	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3787	break;
3788
3789	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3790	case SVGA3D_RS_POINTSCALE_A: /* float */
3791	case SVGA3D_RS_POINTSCALE_B: /* float */
3792	case SVGA3D_RS_POINTSCALE_C: /* float */
3793	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3794	break;
3795
3796	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3797	{
3798	GLfloat color[4]; /* red, green, blue, alpha */
3799
3800	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3801
3802	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3803	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3804	break;
3805	}
3806
3807	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3808	{
3809	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3810	for (uint32_t j = 0; j <= 5; j++)
3811	{
3812	if (pRenderState[i].uintValue & RT_BIT(j))
3813	glEnable(GL_CLIP_PLANE0 + j);
3814	else
3815	glDisable(GL_CLIP_PLANE0 + j);
3816	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3817	}
3818	break;
3819	}
3820
3821	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3822	{
3823	GLfloat color[4]; /* red, green, blue, alpha */
3824
3825	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3826
3827	glFogfv(GL_FOG_COLOR, color);
3828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3829	break;
3830	}
3831
3832	case SVGA3D_RS_FOGSTART: /* float */
3833	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3834	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3835	break;
3836
3837	case SVGA3D_RS_FOGEND: /* float */
3838	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3840	break;
3841
3842	case SVGA3D_RS_FOGDENSITY: /* float */
3843	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3844	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3845	break;
3846
3847	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3848	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3849	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3850	break;
3851
3852	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3853	{
3854	SVGA3dFogMode mode;
3855	mode.uintValue = pRenderState[i].uintValue;
3856
3857	enableCap = GL_FOG_MODE;
3858	switch (mode.s.function)
3859	{
3860	case SVGA3D_FOGFUNC_EXP:
3861	val = GL_EXP;
3862	break;
3863	case SVGA3D_FOGFUNC_EXP2:
3864	val = GL_EXP2;
3865	break;
3866	case SVGA3D_FOGFUNC_LINEAR:
3867	val = GL_LINEAR;
3868	break;
3869	default:
3870	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3871	break;
3872	}
3873
3874	/** @todo how to switch between vertex and pixel fog modes??? */
3875	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3876	#if 0
3877	/* The fog type determines the render state. */
3878	switch (mode.s.type)
3879	{
3880	case SVGA3D_FOGTYPE_VERTEX:
3881	renderState = D3DRS_FOGVERTEXMODE;
3882	break;
3883	case SVGA3D_FOGTYPE_PIXEL:
3884	renderState = D3DRS_FOGTABLEMODE;
3885	break;
3886	default:
3887	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3888	break;
3889	}
3890	#endif
3891
3892	/* Set the fog base to depth or range. */
3893	switch (mode.s.base)
3894	{
3895	case SVGA3D_FOGBASE_DEPTHBASED:
3896	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3897	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3898	break;
3899	case SVGA3D_FOGBASE_RANGEBASED:
3900	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3901	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3902	break;
3903	default:
3904	/* ignore */
3905	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3906	break;
3907	}
3908	break;
3909	}
3910
3911	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3912	{
3913	SVGA3dFillMode mode;
3914
3915	mode.uintValue = pRenderState[i].uintValue;
3916
3917	switch (mode.s.mode)
3918	{
3919	case SVGA3D_FILLMODE_POINT:
3920	val = GL_POINT;
3921	break;
3922	case SVGA3D_FILLMODE_LINE:
3923	val = GL_LINE;
3924	break;
3925	case SVGA3D_FILLMODE_FILL:
3926	val = GL_FILL;
3927	break;
3928	default:
3929	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3930	break;
3931	}
3932	/* @note only front and back faces */
3933	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3934	glPolygonMode(GL_FRONT_AND_BACK, val);
3935	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3936	break;
3937	}
3938
3939	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3940	switch (pRenderState[i].uintValue)
3941	{
3942	case SVGA3D_SHADEMODE_FLAT:
3943	val = GL_FLAT;
3944	break;
3945
3946	case SVGA3D_SHADEMODE_SMOOTH:
3947	val = GL_SMOOTH;
3948	break;
3949
3950	default:
3951	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3952	break;
3953	}
3954
3955	glShadeModel(val);
3956	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3957	break;
3958
3959	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3960	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3961	/** @todo */
3962	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3963	/*
3964	renderState = D3DRS_LINEPATTERN;
3965	val = pRenderState[i].uintValue;
3966	*/
3967	break;
3968
3969	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3970	enableCap = GL_LINE_SMOOTH;
3971	val = pRenderState[i].uintValue;
3972	break;
3973
3974	case SVGA3D_RS_LINEWIDTH: /* float */
3975	glLineWidth(pRenderState[i].floatValue);
3976	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3977	break;
3978
3979	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3980	{
3981	/* Refresh the blending state based on the new enable setting.
3982	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3983	*/
3984	static SVGA3dRenderStateName const saRefreshState[] =
3985	{
3986	SVGA3D_RS_SRCBLEND,
3987	SVGA3D_RS_BLENDEQUATION
3988	};
3989	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3990	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3991	{
3992	renderstate[j].state = saRefreshState[j];
3993	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3994	}
3995
3996	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3997	AssertRCReturn(rc, rc);
3998
3999	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4000	continue; /* Ignore if blend is enabled */
4001	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4002	} RT_FALL_THRU();
4003
4004	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4005	enableCap = GL_BLEND;
4006	val = pRenderState[i].uintValue;
4007	break;
4008
4009	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4010	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4011	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4012	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4013	{
4014	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4015	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4016
4017	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4018	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4019	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4020	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4021	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4022	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4023	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4024	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4025
4026	switch (pRenderState[i].state)
4027	{
4028	case SVGA3D_RS_SRCBLEND:
4029	srcRGB = blendop;
4030	break;
4031	case SVGA3D_RS_DSTBLEND:
4032	dstRGB = blendop;
4033	break;
4034	case SVGA3D_RS_SRCBLENDALPHA:
4035	srcAlpha = blendop;
4036	break;
4037	case SVGA3D_RS_DSTBLENDALPHA:
4038	dstAlpha = blendop;
4039	break;
4040	default:
4041	/* not possible; shut up gcc */
4042	AssertFailed();
4043	break;
4044	}
4045
4046	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4047	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4048	else
4049	glBlendFunc(srcRGB, dstRGB);
4050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4051	break;
4052	}
4053
4054	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4055	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4056	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4057	{
4058	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4059	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4060	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4061	}
4062	else
4063	{
4064	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4065	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4066	#else
4067	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4068	#endif
4069	}
4070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4071	break;
4072
4073	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4074	{
4075	GLfloat red, green, blue, alpha;
4076
4077	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4078
4079	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4080	glBlendColor(red, green, blue, alpha);
4081	#else
4082	pState->ext.glBlendColor(red, green, blue, alpha);
4083	#endif
4084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4085	break;
4086	}
4087
4088	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4089	{
4090	GLenum mode = GL_BACK; /* default for OpenGL */
4091
4092	switch (pRenderState[i].uintValue)
4093	{
4094	case SVGA3D_FACE_NONE:
4095	break;
4096	case SVGA3D_FACE_FRONT:
4097	mode = GL_FRONT;
4098	break;
4099	case SVGA3D_FACE_BACK:
4100	mode = GL_BACK;
4101	break;
4102	case SVGA3D_FACE_FRONT_BACK:
4103	mode = GL_FRONT_AND_BACK;
4104	break;
4105	default:
4106	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4107	break;
4108	}
4109	enableCap = GL_CULL_FACE;
4110	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4111	{
4112	glCullFace(mode);
4113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4114	val = 1;
4115	}
4116	else
4117	val = 0;
4118	break;
4119	}
4120
4121	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4122	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4123	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4124	break;
4125
4126	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4127	{
4128	GLclampf ref;
4129
4130	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4132	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4134	break;
4135	}
4136
4137	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4138	{
4139	GLint func;
4140
4141	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4142	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4143	glAlphaFunc(func, pRenderState[i].floatValue);
4144	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4145	break;
4146	}
4147
4148	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4149	{
4150	/* Refresh the stencil state based on the new enable setting.
4151	* This will take existing states and set them using either glStencil or glStencil*Separate.
4152	*/
4153	static SVGA3dRenderStateName const saRefreshState[] =
4154	{
4155	SVGA3D_RS_STENCILFUNC,
4156	SVGA3D_RS_STENCILFAIL,
4157	SVGA3D_RS_CCWSTENCILFUNC,
4158	SVGA3D_RS_CCWSTENCILFAIL
4159	};
4160	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4161	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4162	{
4163	renderstate[j].state = saRefreshState[j];
4164	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4165	}
4166
4167	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4168	AssertRCReturn(rc, rc);
4169
4170	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4171	continue; /* Ignore if stencil is enabled */
4172	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4173	} RT_FALL_THRU();
4174
4175	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4176	enableCap = GL_STENCIL_TEST;
4177	val = pRenderState[i].uintValue;
4178	break;
4179
4180	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4181	case SVGA3D_RS_STENCILREF: /* uint32_t */
4182	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4183	{
4184	GLint func, ref;
4185	GLuint mask;
4186
4187	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4188	glGetIntegerv(GL_STENCIL_FUNC, &func);
4189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4190	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4192	glGetIntegerv(GL_STENCIL_REF, &ref);
4193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4194
4195	/* Update the changed value. */
4196	switch (pRenderState[i].state)
4197	{
4198	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4199	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4200	break;
4201
4202	case SVGA3D_RS_STENCILREF: /* uint32_t */
4203	ref = pRenderState[i].uintValue;
4204	break;
4205
4206	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4207	mask = pRenderState[i].uintValue;
4208	break;
4209
4210	default:
4211	/* not possible; shut up gcc */
4212	AssertFailed();
4213	break;
4214	}
4215
4216	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4217	{
4218	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4219	}
4220	else
4221	{
4222	glStencilFunc(func, ref, mask);
4223	}
4224	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4225	break;
4226	}
4227
4228	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4229	glStencilMask(pRenderState[i].uintValue);
4230	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4231	break;
4232
4233	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4234	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4235	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4236	{
4237	GLint sfail, dpfail, dppass;
4238	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4239
4240	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4241	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4242	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4243	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4244	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4246
4247	switch (pRenderState[i].state)
4248	{
4249	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4250	sfail = stencilop;
4251	break;
4252	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4253	dpfail = stencilop;
4254	break;
4255	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4256	dppass = stencilop;
4257	break;
4258	default:
4259	/* not possible; shut up gcc */
4260	AssertFailed();
4261	break;
4262	}
4263	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4264	{
4265	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4266	}
4267	else
4268	{
4269	glStencilOp(sfail, dpfail, dppass);
4270	}
4271	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4272	break;
4273	}
4274
4275	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4276	{
4277	GLint ref;
4278	GLuint mask;
4279	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4280
4281	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4282	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4283	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4284	glGetIntegerv(GL_STENCIL_REF, &ref);
4285	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4286
4287	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4288	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4289	break;
4290	}
4291
4292	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4293	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4294	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4295	{
4296	GLint sfail, dpfail, dppass;
4297	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4298
4299	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4300	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4301	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4302	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4303	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4304	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4305
4306	switch (pRenderState[i].state)
4307	{
4308	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4309	sfail = stencilop;
4310	break;
4311	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4312	dpfail = stencilop;
4313	break;
4314	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4315	dppass = stencilop;
4316	break;
4317	default:
4318	/* not possible; shut up gcc */
4319	AssertFailed();
4320	break;
4321	}
4322	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4323	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4324	break;
4325	}
4326
4327	case SVGA3D_RS_ZBIAS: /* float */
4328	/** @todo unknown meaning; depth bias is not identical
4329	renderState = D3DRS_DEPTHBIAS;
4330	val = pRenderState[i].uintValue;
4331	*/
4332	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4333	break;
4334
4335	case SVGA3D_RS_DEPTHBIAS: /* float */
4336	{
4337	GLfloat factor;
4338
4339	/** @todo not sure if the d3d & ogl definitions are identical. */
4340
4341	/* Do not change the factor part. */
4342	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4343	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4344
4345	glPolygonOffset(factor, pRenderState[i].floatValue);
4346	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4347	break;
4348	}
4349
4350	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4351	{
4352	GLfloat units;
4353
4354	/** @todo not sure if the d3d & ogl definitions are identical. */
4355
4356	/* Do not change the factor part. */
4357	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4358	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4359
4360	glPolygonOffset(pRenderState[i].floatValue, units);
4361	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4362	break;
4363	}
4364
4365	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4366	{
4367	GLboolean red, green, blue, alpha;
4368	SVGA3dColorMask mask;
4369
4370	mask.uintValue = pRenderState[i].uintValue;
4371
4372	red = mask.s.red;
4373	green = mask.s.green;
4374	blue = mask.s.blue;
4375	alpha = mask.s.alpha;
4376
4377	glColorMask(red, green, blue, alpha);
4378	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4379	break;
4380	}
4381
4382	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4383	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4384	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4385	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4386	break;
4387
4388	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4389	enableCap = GL_SCISSOR_TEST;
4390	val = pRenderState[i].uintValue;
4391	break;
4392
4393	#if 0
4394	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4395	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4396	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4397	val = pRenderState[i].uintValue;
4398	break;
4399
4400	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4401	renderState = D3DRS_SPECULARMATERIALSOURCE;
4402	val = pRenderState[i].uintValue;
4403	break;
4404
4405	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4406	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4407	val = pRenderState[i].uintValue;
4408	break;
4409
4410	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4411	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4412	val = pRenderState[i].uintValue;
4413	break;
4414	#endif
4415
4416	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4417	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4418	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4419	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4420	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4421	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4422	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4423	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4424	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4425	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4426	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4427	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4428	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4429	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4430	break;
4431
4432	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4433	case SVGA3D_RS_TWEENFACTOR: /* float */
4434	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4435	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4436	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4437	break;
4438
4439	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4440	enableCap = GL_MULTISAMPLE;
4441	val = pRenderState[i].uintValue;
4442	break;
4443
4444	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4445	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4446	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4447	break;
4448
4449	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4450	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4451	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4452	/*
4453	renderState = D3DRS_COORDINATETYPE;
4454	val = pRenderState[i].uintValue;
4455	*/
4456	break;
4457
4458	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4459	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4460	/* Invert the selected mode because of y-inversion (?) */
4461	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4462	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4463	break;
4464
4465	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4466	//AssertFailed();
4467	/*
4468	D3DRS_SRGBWRITEENABLE ??
4469	renderState = D3DRS_OUTPUTGAMMA;
4470	val = pRenderState[i].uintValue;
4471	*/
4472	break;
4473
4474	#if 0
4475
4476	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4477	//AssertFailed();
4478	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4479	val = pRenderState[i].uintValue;
4480	break;
4481
4482	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4483	renderState = D3DRS_TEXTUREFACTOR;
4484	val = pRenderState[i].uintValue;
4485	break;
4486
4487	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4488	renderState = D3DRS_LOCALVIEWER;
4489	val = pRenderState[i].uintValue;
4490	break;
4491
4492	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4493	AssertFailed();
4494	/*
4495	renderState = D3DRS_ZVISIBLE;
4496	val = pRenderState[i].uintValue;
4497	*/
4498	break;
4499
4500	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4501	renderState = D3DRS_CLIPPING;
4502	val = pRenderState[i].uintValue;
4503	break;
4504
4505	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4506	glTexParameter GL_TEXTURE_WRAP_S
4507	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4508	renderState = D3DRS_WRAP0;
4509	val = pRenderState[i].uintValue;
4510	break;
4511
4512	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4513	glTexParameter GL_TEXTURE_WRAP_T
4514	renderState = D3DRS_WRAP1;
4515	val = pRenderState[i].uintValue;
4516	break;
4517
4518	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4519	glTexParameter GL_TEXTURE_WRAP_R
4520	renderState = D3DRS_WRAP2;
4521	val = pRenderState[i].uintValue;
4522	break;
4523
4524
4525	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4526	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4527	val = pRenderState[i].uintValue;
4528	break;
4529
4530
4531	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4532	renderState = D3DRS_BLENDOPALPHA;
4533	val = pRenderState[i].uintValue;
4534	break;
4535
4536	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4537	AssertFailed();
4538	/*
4539	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4540	val = pRenderState[i].uintValue;
4541	*/
4542	break;
4543
4544	#endif
4545	default:
4546	AssertFailed();
4547	break;
4548	}
4549
4550	if (enableCap != ~(GLenum)0)
4551	{
4552	if (val)
4553	glEnable(enableCap);
4554	else
4555	glDisable(enableCap);
4556	}
4557	}
4558
4559	return VINF_SUCCESS;
4560	}
4561
4562	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4563	{
4564	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4565
4566	AssertReturn(pState, VERR_NO_MEMORY);
4567	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4568
4569	LogFunc(("cid=%x type=%x sid=%x\n", cid, type, target.sid));
4570
4571	PVMSVGA3DCONTEXT pContext;
4572	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4573	AssertRCReturn(rc, rc);
4574
4575	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4576
4577	/* Save for vm state save/restore. */
4578	pContext->state.aRenderTargets[type] = target.sid;
4579
4580	if (target.sid == SVGA3D_INVALID_ID)
4581	{
4582	/* Disable render target. */
4583	switch (type)
4584	{
4585	case SVGA3D_RT_DEPTH:
4586	case SVGA3D_RT_STENCIL:
4587	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4588	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4589	break;
4590
4591	case SVGA3D_RT_COLOR0:
4592	case SVGA3D_RT_COLOR1:
4593	case SVGA3D_RT_COLOR2:
4594	case SVGA3D_RT_COLOR3:
4595	case SVGA3D_RT_COLOR4:
4596	case SVGA3D_RT_COLOR5:
4597	case SVGA3D_RT_COLOR6:
4598	case SVGA3D_RT_COLOR7:
4599	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4600	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4601	break;
4602
4603	default:
4604	AssertFailedReturn(VERR_INVALID_PARAMETER);
4605	}
4606	return VINF_SUCCESS;
4607	}
4608
4609	PVMSVGA3DSURFACE pRenderTarget;
4610	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
4611	AssertRCReturn(rc, rc);
4612
4613	switch (type)
4614	{
4615	case SVGA3D_RT_DEPTH:
4616	case SVGA3D_RT_STENCIL:
4617	#if 1
4618	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4619	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4620	{
4621	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4622	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4623	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4624	AssertRCReturn(rc, rc);
4625	}
4626
4627	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4628	Assert(!pRenderTarget->fDirty);
4629
4630	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4631
4632	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4633	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4634	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4635	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4636	#else
4637	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4638	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4639	{
4640	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4641	pContext = &pState->SharedCtx;
4642	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4643
4644	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4645	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4646	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
4647
4648	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4649	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4650
4651	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4652	pRenderTarget->internalFormatGL,
4653	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4654	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4655	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4656
4657	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4659
4660	pContext = pState->papContexts[cid];
4661	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4662	pRenderTarget->idWeakContextAssociation = cid;
4663	}
4664
4665	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4666	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4667	Assert(!pRenderTarget->fDirty);
4668	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4669
4670	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4671
4672	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4673	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4674	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4675	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4676	#endif
4677	break;
4678
4679	case SVGA3D_RT_COLOR0:
4680	case SVGA3D_RT_COLOR1:
4681	case SVGA3D_RT_COLOR2:
4682	case SVGA3D_RT_COLOR3:
4683	case SVGA3D_RT_COLOR4:
4684	case SVGA3D_RT_COLOR5:
4685	case SVGA3D_RT_COLOR6:
4686	case SVGA3D_RT_COLOR7:
4687	{
4688	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4689	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4690	{
4691	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));
4692	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4693	AssertRCReturn(rc, rc);
4694	}
4695
4696	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4697	Assert(!pRenderTarget->fDirty);
4698
4699	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4700
4701	GLenum textarget;
4702	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4703	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4704	else
4705	textarget = GL_TEXTURE_2D;
4706	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4707	textarget, pRenderTarget->oglId.texture, target.mipmap);
4708	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4709
4710	#ifdef DEBUG
4711	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4712	if (status != GL_FRAMEBUFFER_COMPLETE)
4713	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4714	#endif
4715	/** @todo use glDrawBuffers too? */
4716	break;
4717	}
4718
4719	default:
4720	AssertFailedReturn(VERR_INVALID_PARAMETER);
4721	}
4722
4723	return VINF_SUCCESS;
4724	}
4725
4726	#if 0
4727	/**
4728	* Convert SVGA texture combiner value to its D3D equivalent
4729	*/
4730	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4731	{
4732	switch (value)
4733	{
4734	case SVGA3D_TC_DISABLE:
4735	return D3DTOP_DISABLE;
4736	case SVGA3D_TC_SELECTARG1:
4737	return D3DTOP_SELECTARG1;
4738	case SVGA3D_TC_SELECTARG2:
4739	return D3DTOP_SELECTARG2;
4740	case SVGA3D_TC_MODULATE:
4741	return D3DTOP_MODULATE;
4742	case SVGA3D_TC_ADD:
4743	return D3DTOP_ADD;
4744	case SVGA3D_TC_ADDSIGNED:
4745	return D3DTOP_ADDSIGNED;
4746	case SVGA3D_TC_SUBTRACT:
4747	return D3DTOP_SUBTRACT;
4748	case SVGA3D_TC_BLENDTEXTUREALPHA:
4749	return D3DTOP_BLENDTEXTUREALPHA;
4750	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4751	return D3DTOP_BLENDDIFFUSEALPHA;
4752	case SVGA3D_TC_BLENDCURRENTALPHA:
4753	return D3DTOP_BLENDCURRENTALPHA;
4754	case SVGA3D_TC_BLENDFACTORALPHA:
4755	return D3DTOP_BLENDFACTORALPHA;
4756	case SVGA3D_TC_MODULATE2X:
4757	return D3DTOP_MODULATE2X;
4758	case SVGA3D_TC_MODULATE4X:
4759	return D3DTOP_MODULATE4X;
4760	case SVGA3D_TC_DSDT:
4761	AssertFailed(); /** @todo ??? */
4762	return D3DTOP_DISABLE;
4763	case SVGA3D_TC_DOTPRODUCT3:
4764	return D3DTOP_DOTPRODUCT3;
4765	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4766	return D3DTOP_BLENDTEXTUREALPHAPM;
4767	case SVGA3D_TC_ADDSIGNED2X:
4768	return D3DTOP_ADDSIGNED2X;
4769	case SVGA3D_TC_ADDSMOOTH:
4770	return D3DTOP_ADDSMOOTH;
4771	case SVGA3D_TC_PREMODULATE:
4772	return D3DTOP_PREMODULATE;
4773	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4774	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4775	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4776	return D3DTOP_MODULATECOLOR_ADDALPHA;
4777	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4778	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4779	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4780	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4781	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4782	return D3DTOP_BUMPENVMAPLUMINANCE;
4783	case SVGA3D_TC_MULTIPLYADD:
4784	return D3DTOP_MULTIPLYADD;
4785	case SVGA3D_TC_LERP:
4786	return D3DTOP_LERP;
4787	default:
4788	AssertFailed();
4789	return D3DTOP_DISABLE;
4790	}
4791	}
4792
4793	/**
4794	* Convert SVGA texture arg data value to its D3D equivalent
4795	*/
4796	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4797	{
4798	switch (value)
4799	{
4800	case SVGA3D_TA_CONSTANT:
4801	return D3DTA_CONSTANT;
4802	case SVGA3D_TA_PREVIOUS:
4803	return D3DTA_CURRENT; /* current = previous */
4804	case SVGA3D_TA_DIFFUSE:
4805	return D3DTA_DIFFUSE;
4806	case SVGA3D_TA_TEXTURE:
4807	return D3DTA_TEXTURE;
4808	case SVGA3D_TA_SPECULAR:
4809	return D3DTA_SPECULAR;
4810	default:
4811	AssertFailed();
4812	return 0;
4813	}
4814	}
4815
4816	/**
4817	* Convert SVGA texture transform flag value to its D3D equivalent
4818	*/
4819	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4820	{
4821	switch (value)
4822	{
4823	case SVGA3D_TEX_TRANSFORM_OFF:
4824	return D3DTTFF_DISABLE;
4825	case SVGA3D_TEX_TRANSFORM_S:
4826	return D3DTTFF_COUNT1; /** @todo correct? */
4827	case SVGA3D_TEX_TRANSFORM_T:
4828	return D3DTTFF_COUNT2; /** @todo correct? */
4829	case SVGA3D_TEX_TRANSFORM_R:
4830	return D3DTTFF_COUNT3; /** @todo correct? */
4831	case SVGA3D_TEX_TRANSFORM_Q:
4832	return D3DTTFF_COUNT4; /** @todo correct? */
4833	case SVGA3D_TEX_PROJECTED:
4834	return D3DTTFF_PROJECTED;
4835	default:
4836	AssertFailed();
4837	return 0;
4838	}
4839	}
4840	#endif
4841
4842	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4843	{
4844	switch (value)
4845	{
4846	case SVGA3D_TEX_ADDRESS_WRAP:
4847	return GL_REPEAT;
4848	case SVGA3D_TEX_ADDRESS_MIRROR:
4849	return GL_MIRRORED_REPEAT;
4850	case SVGA3D_TEX_ADDRESS_CLAMP:
4851	return GL_CLAMP_TO_EDGE;
4852	case SVGA3D_TEX_ADDRESS_BORDER:
4853	return GL_CLAMP_TO_BORDER;
4854	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4855	AssertFailed();
4856	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4857
4858	case SVGA3D_TEX_ADDRESS_EDGE:
4859	case SVGA3D_TEX_ADDRESS_INVALID:
4860	default:
4861	AssertFailed();
4862	return GL_REPEAT; /* default */
4863	}
4864	}
4865
4866	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4867	{
4868	switch (value)
4869	{
4870	case SVGA3D_TEX_FILTER_NONE:
4871	case SVGA3D_TEX_FILTER_LINEAR:
4872	return GL_LINEAR;
4873	case SVGA3D_TEX_FILTER_NEAREST:
4874	return GL_NEAREST;
4875	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4876	/** @todo */
4877	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4878	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4879	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4880	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4881	default:
4882	AssertFailed();
4883	return GL_LINEAR; /* default */
4884	}
4885	}
4886
4887	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4888	{
4889	/* flip the red and blue bytes */
4890	uint8_t blue = value & 0xff;
4891	uint8_t red = (value >> 16) & 0xff;
4892	return (value & 0xff00ff00) \| red \| (blue << 16);
4893	}
4894
4895	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4896	{
4897	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4898	GLenum currentStage = ~(GLenum)0;
4899	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4900	AssertReturn(pState, VERR_NO_MEMORY);
4901
4902	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4903
4904	PVMSVGA3DCONTEXT pContext;
4905	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4906	AssertRCReturn(rc, rc);
4907
4908	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4909
4910	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4911	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4912
4913	for (uint32_t i = 0; i < cTextureStates; ++i)
4914	{
4915	GLenum textureType = ~(GLenum)0;
4916	#if 0
4917	GLenum samplerType = ~(GLenum)0;
4918	#endif
4919
4920	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4921	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4922
4923	/* Record the texture state for vm state saving. */
4924	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4925	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4926	{
4927	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4928	}
4929
4930	/* Activate the right texture unit for subsequent texture state changes. */
4931	if (pTextureState[i].stage != currentStage \|\| i == 0)
4932	{
4933	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4934	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4935	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4936	{
4937	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4938	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4939	currentStage = pTextureState[i].stage;
4940	}
4941	else
4942	{
4943	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4944	continue;
4945	}
4946
4947	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4948	{
4949	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4950	AssertRCReturn(rc, rc);
4951	}
4952	else
4953	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4954	}
4955
4956	switch (pTextureState[i].name)
4957	{
4958	case SVGA3D_TS_BUMPENVMAT00: /* float */
4959	case SVGA3D_TS_BUMPENVMAT01: /* float */
4960	case SVGA3D_TS_BUMPENVMAT10: /* float */
4961	case SVGA3D_TS_BUMPENVMAT11: /* float */
4962	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4963	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4964	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4965	break;
4966
4967	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4968	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4969	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4970	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4971	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4972	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4973	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4974	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4975	/** @todo not used by MesaGL */
4976	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4977	break;
4978	#if 0
4979
4980	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4981	textureType = D3DTSS_TEXCOORDINDEX;
4982	val = pTextureState[i].value;
4983	break;
4984
4985	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4986	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4987	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4988	break;
4989	#endif
4990
4991	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4992	{
4993	uint32_t const sid = pTextureState[i].value;
4994
4995	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4996	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4997
4998	/* Only if texture actually changed. */ /// @todo needs testing.
4999	if (pContext->aSidActiveTextures[currentStage] != sid)
5000	{
5001	if (pCurrentTextureSurface)
5002	{
5003	/* Unselect the currently associated texture. */
5004	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5005	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5006
5007	if (currentStage < 8)
5008	{
5009	/* Necessary for the fixed pipeline. */
5010	glDisable(pCurrentTextureSurface->targetGL);
5011	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5012	}
5013
5014	pCurrentTextureSurface = NULL;
5015	}
5016
5017	if (sid == SVGA3D_INVALID_ID)
5018	{
5019	Assert(pCurrentTextureSurface == NULL);
5020	}
5021	else
5022	{
5023	PVMSVGA3DSURFACE pSurface;
5024	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5025	AssertRCReturn(rc, rc);
5026
5027	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
5028	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
5029	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5030
5031	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5032	{
5033	Log(("CreateTexture (%d,%d) levels=%d\n",
5034	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5035	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5036	AssertRCReturn(rc, rc);
5037	}
5038
5039	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5041
5042	if (currentStage < 8)
5043	{
5044	/* Necessary for the fixed pipeline. */
5045	glEnable(pSurface->targetGL);
5046	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5047	}
5048
5049	/* Remember the currently active texture. */
5050	pCurrentTextureSurface = pSurface;
5051
5052	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5053	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5054	{
5055	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5056	{
5057	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5058
5059	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5060	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5061	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5062	}
5063	}
5064	}
5065
5066	pContext->aSidActiveTextures[currentStage] = sid;
5067	}
5068
5069	/* Finished; continue with the next one. */
5070	continue;
5071	}
5072
5073	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5074	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5075	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5076	break;
5077
5078	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5079	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5080	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5081	break;
5082
5083	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5084	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5085	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5086	break;
5087
5088	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5089	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5090	{
5091	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5092	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5093
5094	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5095	textureType = GL_TEXTURE_MIN_FILTER;
5096	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5097	{
5098	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5099	{
5100	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5101	val = GL_NEAREST_MIPMAP_LINEAR;
5102	else
5103	val = GL_NEAREST_MIPMAP_NEAREST;
5104	}
5105	else
5106	{
5107	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5108	val = GL_LINEAR_MIPMAP_LINEAR;
5109	else
5110	val = GL_LINEAR_MIPMAP_NEAREST;
5111	}
5112	}
5113	else
5114	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5115	break;
5116	}
5117
5118	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5119	textureType = GL_TEXTURE_MAG_FILTER;
5120	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5121	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5122	break;
5123
5124	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5125	{
5126	GLfloat color[4]; /* red, green, blue, alpha */
5127	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5128
5129	GLenum targetGL;
5130	if (pCurrentTextureSurface)
5131	targetGL = pCurrentTextureSurface->targetGL;
5132	else
5133	{
5134	/* No texture bound, assume 2D. */
5135	targetGL = GL_TEXTURE_2D;
5136	}
5137
5138	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5140	break;
5141	}
5142
5143	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5144	{
5145	GLenum targetGL;
5146	if (pCurrentTextureSurface)
5147	targetGL = pCurrentTextureSurface->targetGL;
5148	else
5149	{
5150	/* No texture bound, assume 2D. */
5151	targetGL = GL_TEXTURE_2D;
5152	}
5153
5154	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5155	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5156	break;
5157	}
5158
5159	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5160	textureType = GL_TEXTURE_BASE_LEVEL;
5161	val = pTextureState[i].value;
5162	break;
5163
5164	#if 0
5165	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5166	samplerType = D3DSAMP_MAXANISOTROPY;
5167	val = pTextureState[i].value; /* Identical?? */
5168	break;
5169
5170	case SVGA3D_TS_GAMMA: /* float */
5171	samplerType = D3DSAMP_SRGBTEXTURE;
5172	/* Boolean in D3D */
5173	if (pTextureState[i].floatValue == 1.0f)
5174	val = FALSE;
5175	else
5176	val = TRUE;
5177	break;
5178	#endif
5179	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5180	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5181	AssertFailed();
5182	break;
5183
5184	default:
5185	//AssertFailed();
5186	break;
5187	}
5188
5189	if (textureType != ~(GLenum)0)
5190	{
5191	GLenum targetGL;
5192	if (pCurrentTextureSurface)
5193	targetGL = pCurrentTextureSurface->targetGL;
5194	else
5195	{
5196	/* No texture bound, assume 2D. */
5197	targetGL = GL_TEXTURE_2D;
5198	}
5199
5200	glTexParameteri(targetGL, textureType, val);
5201	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5202	}
5203	}
5204
5205	return VINF_SUCCESS;
5206	}
5207
5208	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5209	{
5210	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5211	AssertReturn(pState, VERR_NO_MEMORY);
5212
5213	LogFunc(("cid=%x face %d\n", cid, face));
5214
5215	PVMSVGA3DCONTEXT pContext;
5216	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5217	AssertRCReturn(rc, rc);
5218
5219	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5220
5221	GLenum oglFace;
5222	switch (face)
5223	{
5224	case SVGA3D_FACE_NONE:
5225	case SVGA3D_FACE_FRONT:
5226	oglFace = GL_FRONT;
5227	break;
5228
5229	case SVGA3D_FACE_BACK:
5230	oglFace = GL_BACK;
5231	break;
5232
5233	case SVGA3D_FACE_FRONT_BACK:
5234	oglFace = GL_FRONT_AND_BACK;
5235	break;
5236
5237	default:
5238	AssertFailedReturn(VERR_INVALID_PARAMETER);
5239	}
5240
5241	/* Save for vm state save/restore. */
5242	pContext->state.aMaterial[face].fValid = true;
5243	pContext->state.aMaterial[face].material = *pMaterial;
5244	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5245
5246	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5247	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5248	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5249	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5250	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5251	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5252
5253	return VINF_SUCCESS;
5254	}
5255
5256	/** @todo Move into separate library as we are using logic from Wine here. */
5257	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5258	{
5259	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5260	AssertReturn(pState, VERR_NO_MEMORY);
5261
5262	LogFunc(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5263
5264	PVMSVGA3DCONTEXT pContext;
5265	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5266	AssertRCReturn(rc, rc);
5267
5268	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5269
5270	/* Store for vm state save/restore */
5271	if (index < SVGA3D_MAX_LIGHTS)
5272	{
5273	pContext->state.aLightData[index].fValidData = true;
5274	pContext->state.aLightData[index].data = *pData;
5275	}
5276	else
5277	AssertFailed();
5278
5279	if ( pData->attenuation0 < 0.0f
5280	\|\| pData->attenuation1 < 0.0f
5281	\|\| pData->attenuation2 < 0.0f)
5282	{
5283	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5284	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5285	}
5286
5287	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5288	glMatrixMode(GL_MODELVIEW);
5289	glPushMatrix();
5290	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5291
5292	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5293	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5294	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5295
5296	float QuadAttenuation;
5297	if (pData->range * pData->range >= FLT_MIN)
5298	QuadAttenuation = 1.4f / (pData->range * pData->range);
5299	else
5300	QuadAttenuation = 0.0f;
5301
5302	switch (pData->type)
5303	{
5304	case SVGA3D_LIGHTTYPE_POINT:
5305	{
5306	GLfloat position[4];
5307
5308	position[0] = pData->position[0];
5309	position[1] = pData->position[1];
5310	position[2] = pData->position[2];
5311	position[3] = 1.0f;
5312
5313	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5314	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5315
5316	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5317	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5318
5319	/* Attenuation - Are these right? guessing... */
5320	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5321	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5322
5323	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5324	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5325
5326	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5327	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5328
5329	/** @todo range */
5330	break;
5331	}
5332
5333	case SVGA3D_LIGHTTYPE_SPOT1:
5334	{
5335	GLfloat exponent;
5336	GLfloat position[4];
5337	const GLfloat pi = 4.0f * atanf(1.0f);
5338
5339	position[0] = pData->position[0];
5340	position[1] = pData->position[1];
5341	position[2] = pData->position[2];
5342	position[3] = 1.0f;
5343
5344	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5345	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5346
5347	position[0] = pData->direction[0];
5348	position[1] = pData->direction[1];
5349	position[2] = pData->direction[2];
5350	position[3] = 1.0f;
5351
5352	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5353	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5354
5355	/*
5356	* opengl-ish and d3d-ish spot lights use too different models for the
5357	* light "intensity" as a function of the angle towards the main light direction,
5358	* so we only can approximate very roughly.
5359	* however spot lights are rather rarely used in games (if ever used at all).
5360	* furthermore if still used, probably nobody pays attention to such details.
5361	*/
5362	if (pData->falloff == 0)
5363	{
5364	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5365	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5366	* will always be 1.0 for both of them, and we don't have to care for the
5367	* rest of the rather complex calculation
5368	*/
5369	exponent = 0.0f;
5370	}
5371	else
5372	{
5373	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5374	if (rho < 0.0001f)
5375	rho = 0.0001f;
5376	exponent = -0.3f/log(cos(rho/2));
5377	}
5378	if (exponent > 128.0f)
5379	exponent = 128.0f;
5380
5381	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5382	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5383
5384	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5385	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5386
5387	/* Attenuation - Are these right? guessing... */
5388	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5389	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5390
5391	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5392	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5393
5394	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5395	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5396
5397	/** @todo range */
5398	break;
5399	}
5400
5401	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5402	{
5403	GLfloat position[4];
5404
5405	position[0] = -pData->direction[0];
5406	position[1] = -pData->direction[1];
5407	position[2] = -pData->direction[2];
5408	position[3] = 0.0f;
5409
5410	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5411	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5412
5413	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5414	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5415
5416	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5417	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5418	break;
5419	}
5420
5421	case SVGA3D_LIGHTTYPE_SPOT2:
5422	default:
5423	Log(("Unsupported light type!!\n"));
5424	rc = VERR_INVALID_PARAMETER;
5425	break;
5426	}
5427
5428	/* Restore the modelview matrix */
5429	glPopMatrix();
5430
5431	return rc;
5432	}
5433
5434	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5435	{
5436	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5437	AssertReturn(pState, VERR_NO_MEMORY);
5438
5439	LogFunc(("cid=%x %d -> %d\n", cid, index, enabled));
5440
5441	PVMSVGA3DCONTEXT pContext;
5442	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5443	AssertRCReturn(rc, rc);
5444
5445	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5446
5447	/* Store for vm state save/restore */
5448	if (index < SVGA3D_MAX_LIGHTS)
5449	pContext->state.aLightData[index].fEnabled = !!enabled;
5450	else
5451	AssertFailed();
5452
5453	if (enabled)
5454	{
5455	if (index < SVGA3D_MAX_LIGHTS)
5456	{
5457	/* Load the default settings if none have been set yet. */
5458	if (!pContext->state.aLightData[index].fValidData)
5459	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5460	}
5461	glEnable(GL_LIGHT0 + index);
5462	}
5463	else
5464	glDisable(GL_LIGHT0 + index);
5465
5466	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5467	return VINF_SUCCESS;
5468	}
5469
5470	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5471	{
5472	PVMSVGA3DCONTEXT pContext;
5473	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5474	AssertReturn(pState, VERR_NO_MEMORY);
5475
5476	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5477
5478	if ( cid >= pState->cContexts
5479	\|\| pState->papContexts[cid]->id != cid)
5480	{
5481	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5482	return VERR_INVALID_PARAMETER;
5483	}
5484	pContext = pState->papContexts[cid];
5485	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5486
5487	/* Save for vm state save/restore. */
5488	pContext->state.RectViewPort = *pRect;
5489	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5490
5491	/** @todo y-inversion for partial viewport coordinates? */
5492	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5493	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5494
5495	/* Reset the projection matrix as that relies on the viewport setting. */
5496	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5497	{
5498	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5499	}
5500	else
5501	{
5502	float matrix[16];
5503
5504	/* identity matrix if no matrix set. */
5505	memset(matrix, 0, sizeof(matrix));
5506	matrix[0] = 1.0;
5507	matrix[5] = 1.0;
5508	matrix[10] = 1.0;
5509	matrix[15] = 1.0;
5510	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5511	}
5512
5513	return VINF_SUCCESS;
5514	}
5515
5516	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5517	{
5518	PVMSVGA3DCONTEXT pContext;
5519	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5520	AssertReturn(pState, VERR_NO_MEMORY);
5521	double oglPlane[4];
5522
5523	Log(("vmsvga3dSetClipPlane cid=%x %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5524	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5525
5526	if ( cid >= pState->cContexts
5527	\|\| pState->papContexts[cid]->id != cid)
5528	{
5529	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5530	return VERR_INVALID_PARAMETER;
5531	}
5532	pContext = pState->papContexts[cid];
5533	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5534
5535	/* Store for vm state save/restore. */
5536	pContext->state.aClipPlane[index].fValid = true;
5537	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5538
5539	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5540	oglPlane[0] = (double)plane[0];
5541	oglPlane[1] = (double)plane[1];
5542	oglPlane[2] = (double)plane[2];
5543	oglPlane[3] = (double)plane[3];
5544
5545	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5547
5548	return VINF_SUCCESS;
5549	}
5550
5551	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5552	{
5553	PVMSVGA3DCONTEXT pContext;
5554	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5555	AssertReturn(pState, VERR_NO_MEMORY);
5556
5557	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5558
5559	if ( cid >= pState->cContexts
5560	\|\| pState->papContexts[cid]->id != cid)
5561	{
5562	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5563	return VERR_INVALID_PARAMETER;
5564	}
5565	pContext = pState->papContexts[cid];
5566	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5567
5568	/* Store for vm state save/restore. */
5569	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5570	pContext->state.RectScissor = *pRect;
5571
5572	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5573	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5574
5575	return VINF_SUCCESS;
5576	}
5577
5578	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5579	{
5580	/* Convert byte color components to float (0-1.0) */
5581	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5582	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5583	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5584	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5585	}
5586
5587	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5588	uint32_t cRects, SVGA3dRect *pRect)
5589	{
5590	GLbitfield mask = 0;
5591	PVMSVGA3DCONTEXT pContext;
5592	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5593	AssertReturn(pState, VERR_NO_MEMORY);
5594	GLboolean fDepthWriteEnabled = GL_FALSE;
5595
5596	Log(("vmsvga3dCommandClear cid=%x clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5597
5598	if ( cid >= pState->cContexts
5599	\|\| pState->papContexts[cid]->id != cid)
5600	{
5601	Log(("vmsvga3dCommandClear invalid context id!\n"));
5602	return VERR_INVALID_PARAMETER;
5603	}
5604	pContext = pState->papContexts[cid];
5605	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5606
5607	if (clearFlag & SVGA3D_CLEAR_COLOR)
5608	{
5609	GLfloat red, green, blue, alpha;
5610
5611	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5612
5613	/* Set the color clear value. */
5614	glClearColor(red, green, blue, alpha);
5615
5616	mask \|= GL_COLOR_BUFFER_BIT;
5617	}
5618	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5619	{
5620	/** @todo possibly the same problem as with glDepthMask */
5621	glClearStencil(stencil);
5622	mask \|= GL_STENCIL_BUFFER_BIT;
5623	}
5624	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5625	{
5626	glClearDepth((GLdouble)depth);
5627	mask \|= GL_DEPTH_BUFFER_BIT;
5628
5629	/* glClear will not clear the depth buffer if writing is disabled. */
5630	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5631	if (fDepthWriteEnabled == GL_FALSE)
5632	glDepthMask(GL_TRUE);
5633	}
5634
5635	if (cRects)
5636	{
5637	/* Save the current scissor test bit and scissor box. */
5638	glPushAttrib(GL_SCISSOR_BIT);
5639	glEnable(GL_SCISSOR_TEST);
5640	for (unsigned i=0; i < cRects; i++)
5641	{
5642	Log(("vmsvga3dCommandClear: rect %d (%d,%d)(%d,%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].x + pRect[i].w, pRect[i].y + pRect[i].h));
5643	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5644	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5645	glClear(mask);
5646	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5647	}
5648	/* Restore the old scissor test bit and box */
5649	glPopAttrib();
5650	}
5651	else
5652	{
5653	glClear(mask);
5654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5655	}
5656
5657	/* Restore depth write state. */
5658	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5659	&& fDepthWriteEnabled == GL_FALSE)
5660	glDepthMask(GL_FALSE);
5661
5662	return VINF_SUCCESS;
5663	}
5664
5665	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5666	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5667	{
5668	normalized = GL_FALSE;
5669	switch (identity.type)
5670	{
5671	case SVGA3D_DECLTYPE_FLOAT1:
5672	size = 1;
5673	type = GL_FLOAT;
5674	break;
5675	case SVGA3D_DECLTYPE_FLOAT2:
5676	size = 2;
5677	type = GL_FLOAT;
5678	break;
5679	case SVGA3D_DECLTYPE_FLOAT3:
5680	size = 3;
5681	type = GL_FLOAT;
5682	break;
5683	case SVGA3D_DECLTYPE_FLOAT4:
5684	size = 4;
5685	type = GL_FLOAT;
5686	break;
5687
5688	case SVGA3D_DECLTYPE_D3DCOLOR:
5689	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5690	type = GL_UNSIGNED_BYTE;
5691	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5692	break;
5693
5694	case SVGA3D_DECLTYPE_UBYTE4N:
5695	normalized = GL_TRUE;
5696	RT_FALL_THRU();
5697	case SVGA3D_DECLTYPE_UBYTE4:
5698	size = 4;
5699	type = GL_UNSIGNED_BYTE;
5700	break;
5701
5702	case SVGA3D_DECLTYPE_SHORT2N:
5703	normalized = GL_TRUE;
5704	RT_FALL_THRU();
5705	case SVGA3D_DECLTYPE_SHORT2:
5706	size = 2;
5707	type = GL_SHORT;
5708	break;
5709
5710	case SVGA3D_DECLTYPE_SHORT4N:
5711	normalized = GL_TRUE;
5712	RT_FALL_THRU();
5713	case SVGA3D_DECLTYPE_SHORT4:
5714	size = 4;
5715	type = GL_SHORT;
5716	break;
5717
5718	case SVGA3D_DECLTYPE_USHORT4N:
5719	normalized = GL_TRUE;
5720	size = 4;
5721	type = GL_UNSIGNED_SHORT;
5722	break;
5723
5724	case SVGA3D_DECLTYPE_USHORT2N:
5725	normalized = GL_TRUE;
5726	size = 2;
5727	type = GL_UNSIGNED_SHORT;
5728	break;
5729
5730	case SVGA3D_DECLTYPE_UDEC3:
5731	size = 3;
5732	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5733	break;
5734
5735	case SVGA3D_DECLTYPE_DEC3N:
5736	normalized = true;
5737	size = 3;
5738	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5739	break;
5740
5741	case SVGA3D_DECLTYPE_FLOAT16_2:
5742	size = 2;
5743	type = GL_HALF_FLOAT;
5744	break;
5745	case SVGA3D_DECLTYPE_FLOAT16_4:
5746	size = 4;
5747	type = GL_HALF_FLOAT;
5748	break;
5749	default:
5750	AssertFailedReturn(VERR_INVALID_PARAMETER);
5751	}
5752
5753	//pVertexElement->Method = identity.method;
5754	//pVertexElement->Usage = identity.usage;
5755
5756	return VINF_SUCCESS;
5757	}
5758
5759	/* Convert VMWare primitive type to its OpenGL equivalent. */
5760	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5761	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5762	{
5763	switch (PrimitiveType)
5764	{
5765	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5766	*pMode = GL_TRIANGLES;
5767	pcVertices = cPrimitiveCount 3;
5768	break;
5769	case SVGA3D_PRIMITIVE_POINTLIST:
5770	*pMode = GL_POINTS;
5771	*pcVertices = cPrimitiveCount;
5772	break;
5773	case SVGA3D_PRIMITIVE_LINELIST:
5774	*pMode = GL_LINES;
5775	pcVertices = cPrimitiveCount 2;
5776	break;
5777	case SVGA3D_PRIMITIVE_LINESTRIP:
5778	*pMode = GL_LINE_STRIP;
5779	*pcVertices = cPrimitiveCount + 1;
5780	break;
5781	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5782	*pMode = GL_TRIANGLE_STRIP;
5783	*pcVertices = cPrimitiveCount + 2;
5784	break;
5785	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5786	*pMode = GL_TRIANGLE_FAN;
5787	*pcVertices = cPrimitiveCount + 2;
5788	break;
5789	default:
5790	return VERR_INVALID_PARAMETER;
5791	}
5792	return VINF_SUCCESS;
5793	}
5794
5795	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5796	{
5797	int rc;
5798
5799	/* Reset the view matrix (also takes the world matrix into account). */
5800	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5801	{
5802	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5803	}
5804	else
5805	{
5806	float matrix[16];
5807
5808	/* identity matrix if no matrix set. */
5809	memset(matrix, 0, sizeof(matrix));
5810	matrix[0] = 1.0;
5811	matrix[5] = 1.0;
5812	matrix[10] = 1.0;
5813	matrix[15] = 1.0;
5814	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5815	}
5816
5817	/* Reset the projection matrix. */
5818	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5819	{
5820	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5821	}
5822	else
5823	{
5824	float matrix[16];
5825
5826	/* identity matrix if no matrix set. */
5827	memset(matrix, 0, sizeof(matrix));
5828	matrix[0] = 1.0;
5829	matrix[5] = 1.0;
5830	matrix[10] = 1.0;
5831	matrix[15] = 1.0;
5832	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5833	}
5834	AssertRC(rc);
5835	return rc;
5836	}
5837
5838	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5839	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5840	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5841	{
5842	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5843	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5844	PVMSVGA3DSURFACE pVertexSurface;
5845
5846	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5847	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5848
5849	pVertexSurface = pState->papSurfaces[sidVertex];
5850	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5851
5852	/* Create and/or bind the vertex buffer. */
5853	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5854	{
5855	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5856	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5857	pContext = &pState->SharedCtx;
5858	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5859
5860	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5861	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5862	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
5863
5864	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5865	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5866
5867	Assert(pVertexSurface->fDirty);
5868	/** @todo rethink usage dynamic/static */
5869	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5870	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5871
5872	pVertexSurface->pMipmapLevels[0].fDirty = false;
5873	pVertexSurface->fDirty = false;
5874
5875	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5876
5877	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5878	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5879
5880	pContext = pSavedCtx;
5881	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5882	}
5883
5884	Assert(pVertexSurface->fDirty == false);
5885	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5886	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5887
5888	/* Setup the vertex declarations. */
5889	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5890	{
5891	GLint size;
5892	GLenum type;
5893	GLboolean normalized;
5894	GLuint index = iVertexDeclBase + iVertex;
5895
5896	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));
5897
5898	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5899	AssertRCReturn(rc, rc);
5900
5901	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5902	{
5903	/* Use numbered vertex arrays when shaders are active. */
5904	pState->ext.glEnableVertexAttribArray(index);
5905	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5906	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5907	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5908	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5909
5910	GLuint divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5911	if (pVertexDecl[iVertex].array.stride == 0 && divisor == 0)
5912	{
5913	/* Zero stride means that the attribute pointer must not be increased.
5914	* See comment about stride in vmsvga3dDrawPrimitives.
5915	*/
5916	LogRelMax(8, ("VMSVGA: Warning: zero stride array (instancing %s)\n", paVertexDivisors ? "on" : "off"));
5917	AssertFailed();
5918	divisor = 1;
5919	}
5920	pState->ext.glVertexAttribDivisor(index, divisor);
5921	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5922
5923	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5924	}
5925	else
5926	{
5927	if (pVertexDecl[iVertex].array.stride == 0)
5928	{
5929	/* Zero stride means that the attribute pointer must not be increased.
5930	* See comment about stride in vmsvga3dDrawPrimitives.
5931	*/
5932	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
5933	AssertFailed();
5934	}
5935
5936	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5937	switch (pVertexDecl[iVertex].identity.usage)
5938	{
5939	case SVGA3D_DECLUSAGE_POSITIONT:
5940	case SVGA3D_DECLUSAGE_POSITION:
5941	{
5942	glEnableClientState(GL_VERTEX_ARRAY);
5943	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5944	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5945	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5946	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5947	break;
5948	}
5949	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5950	AssertFailed();
5951	break;
5952	case SVGA3D_DECLUSAGE_BLENDINDICES:
5953	AssertFailed();
5954	break;
5955	case SVGA3D_DECLUSAGE_NORMAL:
5956	glEnableClientState(GL_NORMAL_ARRAY);
5957	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5958	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5959	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5960	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5961	break;
5962	case SVGA3D_DECLUSAGE_PSIZE:
5963	AssertFailed();
5964	break;
5965	case SVGA3D_DECLUSAGE_TEXCOORD:
5966	/* Specify the affected texture unit. */
5967	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5968	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5969	#else
5970	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5971	#endif
5972	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5973	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5974	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5975	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5976	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5977	break;
5978	case SVGA3D_DECLUSAGE_TANGENT:
5979	AssertFailed();
5980	break;
5981	case SVGA3D_DECLUSAGE_BINORMAL:
5982	AssertFailed();
5983	break;
5984	case SVGA3D_DECLUSAGE_TESSFACTOR:
5985	AssertFailed();
5986	break;
5987	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5988	glEnableClientState(GL_COLOR_ARRAY);
5989	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5990	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5991	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5992	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5993	break;
5994	case SVGA3D_DECLUSAGE_FOG:
5995	glEnableClientState(GL_FOG_COORD_ARRAY);
5996	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5997	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5998	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5999	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6000	break;
6001	case SVGA3D_DECLUSAGE_DEPTH:
6002	AssertFailed();
6003	break;
6004	case SVGA3D_DECLUSAGE_SAMPLE:
6005	AssertFailed();
6006	break;
6007	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6008	}
6009	}
6010
6011	#ifdef LOG_ENABLED
6012	if (pVertexDecl[iVertex].array.stride == 0)
6013	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6014	#endif
6015	}
6016
6017	return VINF_SUCCESS;
6018	}
6019
6020	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6021	{
6022	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6023
6024	/* Clean up the vertex declarations. */
6025	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6026	{
6027	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6028	{
6029	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6030	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6031	vmsvga3dResetTransformMatrices(pThis, pContext);
6032	}
6033
6034	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6035	{
6036	/* Use numbered vertex arrays when shaders are active. */
6037	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6038	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6039	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6041	}
6042	else
6043	{
6044	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6045	switch (pVertexDecl[iVertex].identity.usage)
6046	{
6047	case SVGA3D_DECLUSAGE_POSITION:
6048	case SVGA3D_DECLUSAGE_POSITIONT:
6049	glDisableClientState(GL_VERTEX_ARRAY);
6050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6051	break;
6052	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6053	break;
6054	case SVGA3D_DECLUSAGE_BLENDINDICES:
6055	break;
6056	case SVGA3D_DECLUSAGE_NORMAL:
6057	glDisableClientState(GL_NORMAL_ARRAY);
6058	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6059	break;
6060	case SVGA3D_DECLUSAGE_PSIZE:
6061	break;
6062	case SVGA3D_DECLUSAGE_TEXCOORD:
6063	/* Specify the affected texture unit. */
6064	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6065	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6066	#else
6067	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6068	#endif
6069	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6071	break;
6072	case SVGA3D_DECLUSAGE_TANGENT:
6073	break;
6074	case SVGA3D_DECLUSAGE_BINORMAL:
6075	break;
6076	case SVGA3D_DECLUSAGE_TESSFACTOR:
6077	break;
6078	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6079	glDisableClientState(GL_COLOR_ARRAY);
6080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6081	break;
6082	case SVGA3D_DECLUSAGE_FOG:
6083	glDisableClientState(GL_FOG_COORD_ARRAY);
6084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6085	break;
6086	case SVGA3D_DECLUSAGE_DEPTH:
6087	break;
6088	case SVGA3D_DECLUSAGE_SAMPLE:
6089	break;
6090	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6091	}
6092	}
6093	}
6094	/* Unbind the vertex buffer after usage. */
6095	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6096	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6097	return VINF_SUCCESS;
6098	}
6099
6100	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6101	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6102	SVGA3dVertexDivisor *pVertexDivisor)
6103	{
6104	RT_NOREF(pVertexDivisor);
6105	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6106	AssertReturn(pState, VERR_INTERNAL_ERROR);
6107	PVMSVGA3DCONTEXT pContext;
6108	int rc = VERR_NOT_IMPLEMENTED;
6109	uint32_t iCurrentVertex;
6110
6111	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6112
6113	/* Caller already check these, but it cannot hurt to check again... */
6114	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6115	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6116	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6117
6118	if (!cVertexDivisor)
6119	pVertexDivisor = NULL; /* Be sure. */
6120
6121	if ( cid >= pState->cContexts
6122	\|\| pState->papContexts[cid]->id != cid)
6123	{
6124	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6125	return VERR_INVALID_PARAMETER;
6126	}
6127	pContext = pState->papContexts[cid];
6128	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6129
6130	/* Check for pretransformed vertex declarations. */
6131	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6132	{
6133	switch (pVertexDecl[iVertex].identity.usage)
6134	{
6135	case SVGA3D_DECLUSAGE_POSITIONT:
6136	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6137	RT_FALL_THRU();
6138	case SVGA3D_DECLUSAGE_POSITION:
6139	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6140	pContext->state.RectViewPort.h,
6141	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6142	break;
6143	default: /* Shut up MSC. */ break;
6144	}
6145	}
6146
6147	/*
6148	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6149	* - D3D and VMSVGA: "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6150	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6151	* VMSVGA uses the D3D semantics.
6152	*
6153	* In order to tell OpenGL to reuse the zero stride attributes for each vertex
6154	* such attributes could be declared as instance data, then OpenGL applies them once
6155	* for all vertices of the one drawn instance.
6156	*
6157	* If instancing is already used (cVertexDivisor > 0), then the code does nothing and assumes that
6158	* all instance data is already correctly marked as such.
6159	*
6160	* If instancing is not requisted (cVertexDivisor == 0), then the code creates a description for
6161	* one instance where all arrays with zero stride are marked as instance data, and all arrays
6162	* with non-zero stride as indexed data.
6163	*/
6164	bool fZeroStrideArray = false;
6165	if (cVertexDivisor == 0)
6166	{
6167	unsigned i;
6168	for (i = 0; i < numVertexDecls; ++i)
6169	{
6170	if (pVertexDecl[i].array.stride == 0)
6171	{
6172	fZeroStrideArray = true;
6173	break;
6174	}
6175	}
6176
6177	if (fZeroStrideArray)
6178	{
6179	cVertexDivisor = numVertexDecls;
6180	pVertexDivisor = (SVGA3dVertexDivisor )RTMemTmpAlloc(sizeof(SVGA3dVertexDivisor) cVertexDivisor);
6181	AssertPtrReturn(pVertexDivisor, VERR_NO_MEMORY);
6182
6183	for (i = 0; i < numVertexDecls; ++i)
6184	{
6185	pVertexDivisor[i].s.count = 1;
6186	if (pVertexDecl[i].array.stride == 0)
6187	{
6188	pVertexDivisor[i].s.instanceData = 1;
6189	}
6190	else
6191	{
6192	pVertexDivisor[i].s.indexedData = 1;
6193	}
6194	}
6195	}
6196	}
6197
6198	/* Try to figure out if instancing is used.
6199	* Support simple instancing case with one set of indexed data and one set per-instance data.
6200	*/
6201	uint32_t cInstances = 0;
6202	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6203	{
6204	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6205	{
6206	if (cInstances == 0)
6207	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6208	else
6209	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6210	}
6211	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6212	{
6213	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6214	}
6215	}
6216
6217	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6218	if (pContext->pShaderContext)
6219	{
6220	uint32_t rtHeight = 0;
6221
6222	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6223	{
6224	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6225	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6226	}
6227
6228	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6229	}
6230
6231	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6232	iCurrentVertex = 0;
6233	while (iCurrentVertex < numVertexDecls)
6234	{
6235	uint32_t sidVertex = SVGA_ID_INVALID;
6236	uint32_t iVertex;
6237
6238	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6239	{
6240	if ( sidVertex != SVGA_ID_INVALID
6241	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6242	)
6243	break;
6244	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6245	}
6246
6247	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6248	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6249	AssertRCReturn(rc, rc);
6250
6251	iCurrentVertex = iVertex;
6252	}
6253
6254	/* Now draw the primitives. */
6255	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6256	{
6257	GLenum modeDraw;
6258	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6259	PVMSVGA3DSURFACE pIndexSurface = NULL;
6260	unsigned cVertices;
6261
6262	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6263	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6264	if (RT_FAILURE(rc))
6265	{
6266	AssertRC(rc);
6267	goto internal_error;
6268	}
6269
6270	if (sidIndex != SVGA3D_INVALID_ID)
6271	{
6272	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6273
6274	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6275	\|\| sidIndex >= pState->cSurfaces
6276	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6277	{
6278	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6279	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6280	rc = VERR_INVALID_PARAMETER;
6281	goto internal_error;
6282	}
6283	pIndexSurface = pState->papSurfaces[sidIndex];
6284	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6285
6286	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6287	{
6288	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6289	pContext = &pState->SharedCtx;
6290	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6291
6292	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6293	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6294	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6295
6296	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6297	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6298
6299	Assert(pIndexSurface->fDirty);
6300
6301	/** @todo rethink usage dynamic/static */
6302	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6303	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6304
6305	pIndexSurface->pMipmapLevels[0].fDirty = false;
6306	pIndexSurface->fDirty = false;
6307
6308	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6309
6310	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6311	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6312
6313	pContext = pState->papContexts[cid];
6314	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6315	}
6316	Assert(pIndexSurface->fDirty == false);
6317
6318	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6319	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6320	}
6321
6322	if (!pIndexSurface)
6323	{
6324	/* Render without an index buffer */
6325	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
6326	if (cInstances == 0)
6327	{
6328	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6329	}
6330	else
6331	{
6332	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6333	}
6334	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6335	}
6336	else
6337	{
6338	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6339
6340	GLenum indexType;
6341	switch (pRange[iPrimitive].indexWidth)
6342	{
6343	case 1: indexType = GL_UNSIGNED_BYTE; break;
6344	case 2: indexType = GL_UNSIGNED_SHORT; break;
6345	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
6346	RT_FALL_THROUGH();
6347	case 4: indexType = GL_UNSIGNED_INT; break;
6348	}
6349
6350	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));
6351	if (cInstances == 0)
6352	{
6353	/* Render with an index buffer */
6354	if (pRange[iPrimitive].indexBias == 0)
6355	glDrawElements(modeDraw,
6356	cVertices,
6357	indexType,
6358	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6359	else
6360	pState->ext.glDrawElementsBaseVertex(modeDraw,
6361	cVertices,
6362	indexType,
6363	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6364	pRange[iPrimitive].indexBias); /* basevertex */
6365	}
6366	else
6367	{
6368	/* Render with an index buffer */
6369	if (pRange[iPrimitive].indexBias == 0)
6370	pState->ext.glDrawElementsInstanced(modeDraw,
6371	cVertices,
6372	indexType,
6373	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6374	cInstances);
6375	else
6376	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6377	cVertices,
6378	indexType,
6379	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6380	cInstances,
6381	pRange[iPrimitive].indexBias); /* basevertex */
6382	}
6383	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6384
6385	/* Unbind the index buffer after usage. */
6386	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6387	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6388	}
6389	}
6390
6391	internal_error:
6392
6393	/* Deactivate the vertex declarations. */
6394	iCurrentVertex = 0;
6395	while (iCurrentVertex < numVertexDecls)
6396	{
6397	uint32_t sidVertex = SVGA_ID_INVALID;
6398	uint32_t iVertex;
6399
6400	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6401	{
6402	if ( sidVertex != SVGA_ID_INVALID
6403	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6404	)
6405	break;
6406	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6407	}
6408
6409	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6410	AssertRCReturn(rc, rc);
6411
6412	iCurrentVertex = iVertex;
6413	}
6414
6415	if (fZeroStrideArray)
6416	{
6417	RTMemTmpFree(pVertexDivisor);
6418	pVertexDivisor = NULL;
6419	}
6420
6421	#ifdef DEBUG
6422	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6423	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6424	{
6425	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6426	{
6427	PVMSVGA3DSURFACE pTexture;
6428	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6429	AssertContinue(RT_SUCCESS(rc2));
6430
6431	GLint activeTextureUnit = 0;
6432	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6433	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6434
6435	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6436	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6437
6438	GLint activeTexture = 0;
6439	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6440	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6441
6442	pState->ext.glActiveTexture(activeTextureUnit);
6443	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6444
6445	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6446	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6447	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6448	}
6449	}
6450	#endif
6451
6452	#if 0
6453	/* Dump render target to a bitmap. */
6454	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6455	{
6456	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6457	PVMSVGA3DSURFACE pSurface;
6458	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6459	if (RT_SUCCESS(rc2))
6460	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
6461	}
6462	#endif
6463
6464	return rc;
6465	}
6466
6467
6468	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6469	{
6470	PVMSVGA3DCONTEXT pContext;
6471	PVMSVGA3DSHADER pShader;
6472	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6473	AssertReturn(pState, VERR_NO_MEMORY);
6474	int rc;
6475
6476	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6477	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6478
6479	if ( cid >= pState->cContexts
6480	\|\| pState->papContexts[cid]->id != cid)
6481	{
6482	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6483	return VERR_INVALID_PARAMETER;
6484	}
6485	pContext = pState->papContexts[cid];
6486	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6487
6488	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6489	if (type == SVGA3D_SHADERTYPE_VS)
6490	{
6491	if (shid >= pContext->cVertexShaders)
6492	{
6493	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6494	AssertReturn(pvNew, VERR_NO_MEMORY);
6495	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6496	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6497	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6498	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6499	pContext->cVertexShaders = shid + 1;
6500	}
6501	/* If one already exists with this id, then destroy it now. */
6502	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6503	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6504
6505	pShader = &pContext->paVertexShader[shid];
6506	}
6507	else
6508	{
6509	Assert(type == SVGA3D_SHADERTYPE_PS);
6510	if (shid >= pContext->cPixelShaders)
6511	{
6512	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6513	AssertReturn(pvNew, VERR_NO_MEMORY);
6514	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6515	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6516	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6517	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6518	pContext->cPixelShaders = shid + 1;
6519	}
6520	/* If one already exists with this id, then destroy it now. */
6521	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6522	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6523
6524	pShader = &pContext->paPixelShader[shid];
6525	}
6526
6527	memset(pShader, 0, sizeof(*pShader));
6528	pShader->id = shid;
6529	pShader->cid = cid;
6530	pShader->type = type;
6531	pShader->cbData = cbData;
6532	pShader->pShaderProgram = RTMemAllocZ(cbData);
6533	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6534	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6535
6536	#ifdef DUMP_SHADER_DISASSEMBLY
6537	LPD3DXBUFFER pDisassembly;
6538	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6539	if (hr == D3D_OK)
6540	{
6541	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6542	pDisassembly->Release();
6543	}
6544	#endif
6545
6546	switch (type)
6547	{
6548	case SVGA3D_SHADERTYPE_VS:
6549	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6550	break;
6551
6552	case SVGA3D_SHADERTYPE_PS:
6553	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6554	break;
6555
6556	default:
6557	AssertFailedReturn(VERR_INVALID_PARAMETER);
6558	}
6559	if (rc != VINF_SUCCESS)
6560	{
6561	RTMemFree(pShader->pShaderProgram);
6562	memset(pShader, 0, sizeof(*pShader));
6563	pShader->id = SVGA3D_INVALID_ID;
6564	}
6565
6566	return rc;
6567	}
6568
6569	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6570	{
6571	PVMSVGA3DCONTEXT pContext;
6572	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6573	AssertReturn(pState, VERR_NO_MEMORY);
6574	PVMSVGA3DSHADER pShader = NULL;
6575	int rc;
6576
6577	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6578
6579	if ( cid >= pState->cContexts
6580	\|\| pState->papContexts[cid]->id != cid)
6581	{
6582	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6583	return VERR_INVALID_PARAMETER;
6584	}
6585	pContext = pState->papContexts[cid];
6586	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6587
6588	if (type == SVGA3D_SHADERTYPE_VS)
6589	{
6590	if ( shid < pContext->cVertexShaders
6591	&& pContext->paVertexShader[shid].id == shid)
6592	{
6593	pShader = &pContext->paVertexShader[shid];
6594	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6595	AssertRC(rc);
6596	}
6597	}
6598	else
6599	{
6600	Assert(type == SVGA3D_SHADERTYPE_PS);
6601	if ( shid < pContext->cPixelShaders
6602	&& pContext->paPixelShader[shid].id == shid)
6603	{
6604	pShader = &pContext->paPixelShader[shid];
6605	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6606	AssertRC(rc);
6607	}
6608	}
6609
6610	if (pShader)
6611	{
6612	if (pShader->pShaderProgram)
6613	RTMemFree(pShader->pShaderProgram);
6614	memset(pShader, 0, sizeof(*pShader));
6615	pShader->id = SVGA3D_INVALID_ID;
6616	}
6617	else
6618	AssertFailedReturn(VERR_INVALID_PARAMETER);
6619
6620	return VINF_SUCCESS;
6621	}
6622
6623	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6624	{
6625	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6626	AssertReturn(pState, VERR_NO_MEMORY);
6627	int rc;
6628
6629	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6630
6631	if ( !pContext
6632	&& cid < pState->cContexts
6633	&& pState->papContexts[cid]->id == cid)
6634	pContext = pState->papContexts[cid];
6635	else if (!pContext)
6636	{
6637	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6638	Log(("vmsvga3dShaderSet invalid context id!\n"));
6639	return VERR_INVALID_PARAMETER;
6640	}
6641	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6642
6643	if (type == SVGA3D_SHADERTYPE_VS)
6644	{
6645	/* Save for vm state save/restore. */
6646	pContext->state.shidVertex = shid;
6647	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6648
6649	if ( shid < pContext->cVertexShaders
6650	&& pContext->paVertexShader[shid].id == shid)
6651	{
6652	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6653	Assert(type == pShader->type);
6654
6655	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6656	AssertRCReturn(rc, rc);
6657	}
6658	else
6659	if (shid == SVGA_ID_INVALID)
6660	{
6661	/* Unselect shader. */
6662	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6663	AssertRCReturn(rc, rc);
6664	}
6665	else
6666	AssertFailedReturn(VERR_INVALID_PARAMETER);
6667	}
6668	else
6669	{
6670	/* Save for vm state save/restore. */
6671	pContext->state.shidPixel = shid;
6672	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6673
6674	Assert(type == SVGA3D_SHADERTYPE_PS);
6675	if ( shid < pContext->cPixelShaders
6676	&& pContext->paPixelShader[shid].id == shid)
6677	{
6678	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6679	Assert(type == pShader->type);
6680
6681	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6682	AssertRCReturn(rc, rc);
6683	}
6684	else
6685	if (shid == SVGA_ID_INVALID)
6686	{
6687	/* Unselect shader. */
6688	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6689	AssertRCReturn(rc, rc);
6690	}
6691	else
6692	AssertFailedReturn(VERR_INVALID_PARAMETER);
6693	}
6694
6695	return VINF_SUCCESS;
6696	}
6697
6698	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6699	{
6700	PVMSVGA3DCONTEXT pContext;
6701	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6702	AssertReturn(pState, VERR_NO_MEMORY);
6703	int rc;
6704
6705	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6706
6707	if ( cid >= pState->cContexts
6708	\|\| pState->papContexts[cid]->id != cid)
6709	{
6710	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6711	return VERR_INVALID_PARAMETER;
6712	}
6713	pContext = pState->papContexts[cid];
6714	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6715
6716	for (uint32_t i = 0; i < cRegisters; i++)
6717	{
6718	#ifdef LOG_ENABLED
6719	switch (ctype)
6720	{
6721	case SVGA3D_CONST_TYPE_FLOAT:
6722	{
6723	float pValuesF = (float )pValues;
6724	Log(("ConstantF %d: value=%d, %d, %d, %d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0f), (int)(pValuesF[i4 + 1] 100.0f), (int)(pValuesF[i4 + 2] 100.0f), (int)(pValuesF[i4 + 3] 100.0f)));
6725	break;
6726	}
6727
6728	case SVGA3D_CONST_TYPE_INT:
6729	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6730	break;
6731
6732	case SVGA3D_CONST_TYPE_BOOL:
6733	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6734	break;
6735	}
6736	#endif
6737	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6738	}
6739
6740	switch (type)
6741	{
6742	case SVGA3D_SHADERTYPE_VS:
6743	switch (ctype)
6744	{
6745	case SVGA3D_CONST_TYPE_FLOAT:
6746	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6747	break;
6748
6749	case SVGA3D_CONST_TYPE_INT:
6750	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6751	break;
6752
6753	case SVGA3D_CONST_TYPE_BOOL:
6754	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6755	break;
6756
6757	default:
6758	AssertFailedReturn(VERR_INVALID_PARAMETER);
6759	}
6760	AssertRCReturn(rc, rc);
6761	break;
6762
6763	case SVGA3D_SHADERTYPE_PS:
6764	switch (ctype)
6765	{
6766	case SVGA3D_CONST_TYPE_FLOAT:
6767	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6768	break;
6769
6770	case SVGA3D_CONST_TYPE_INT:
6771	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6772	break;
6773
6774	case SVGA3D_CONST_TYPE_BOOL:
6775	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6776	break;
6777
6778	default:
6779	AssertFailedReturn(VERR_INVALID_PARAMETER);
6780	}
6781	AssertRCReturn(rc, rc);
6782	break;
6783
6784	default:
6785	AssertFailedReturn(VERR_INVALID_PARAMETER);
6786	}
6787
6788	return VINF_SUCCESS;
6789	}
6790
6791	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6792	{
6793	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6794	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6795
6796	GLuint idQuery = 0;
6797	pState->ext.glGenQueries(1, &idQuery);
6798	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6799	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6800	pContext->occlusion.idQuery = idQuery;
6801	return VINF_SUCCESS;
6802	}
6803
6804	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6805	{
6806	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6807	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6808
6809	if (pContext->occlusion.idQuery)
6810	{
6811	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6812	}
6813	return VINF_SUCCESS;
6814	}
6815
6816	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6817	{
6818	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6819	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6820
6821	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6822	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6823	return VINF_SUCCESS;
6824	}
6825
6826	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6827	{
6828	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6829	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6830
6831	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6832	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6833	return VINF_SUCCESS;
6834	}
6835
6836	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6837	{
6838	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6839	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6840
6841	GLuint pixels = 0;
6842	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6843	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6844
6845	*pu32Pixels = (uint32_t)pixels;
6846	return VINF_SUCCESS;
6847	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 81888

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