DevVGA-SVGA3d-ogl.cpp@ 82090

Last change on this file since 82090 was 82090, checked in by vboxsync, 5 years ago
Devices/Graphics: use helpers to resolve surface and context ids; log the ids as decimal values.
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 82090 2019-11-21 22:29:30Z 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 = 1;
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	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
918	pState->caps.fTextureFilterAnisotropicSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_filter_anisotropic ");
919
920	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
921	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
922	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
923	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
924	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
925	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
926	#else
927	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
928	#endif
929	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
930	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
931	if (pState->caps.fTextureFilterAnisotropicSupported)
932	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
933	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
934
935	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
936	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
937	&pState->caps.maxFragmentShaderTemps));
938	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
939	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
940	&pState->caps.maxFragmentShaderInstructions));
941	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
942	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
943	&pState->caps.maxVertexShaderTemps));
944	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
945	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
946	&pState->caps.maxVertexShaderInstructions));
947
948	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
949	* ARB Assembly Language
950	* These are done through testing the presence of extensions. You should test them in this order:
951	* GL_NV_gpu_program4: SM 4.0 or better.
952	* GL_NV_vertex_program3: SM 3.0 or better.
953	* GL_ARB_fragment_program: SM 2.0 or better.
954	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
955	*
956	*/
957	/** @todo distinguish between vertex and pixel shaders??? */
958	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
959	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
960	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
961	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
962	#else
963	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
964	#endif
965	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
966	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
967	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
968	{
969	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
970	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
971	}
972	else
973	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
974	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
975	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
976	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
977	)
978	{
979	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
980	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
981	}
982	else
983	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
984	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
985	{
986	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
987	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
988	}
989	else
990	{
991	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
992	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
993	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
994	}
995
996	/* Now check the shading language version, in case it indicates a higher supported version. */
997	if (v >= 3.30f)
998	{
999	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
1000	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
1001	}
1002	else
1003	if (v >= 1.20f)
1004	{
1005	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1006	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1007	}
1008
1009	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1010	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1011	{
1012	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1013	}
1014
1015	/*
1016	* Tweak capabilities.
1017	*/
1018	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1019	if ( pState->caps.maxVertexShaderTemps < 32
1020	&& vmsvga3dIsVendorIntel())
1021	pState->caps.maxVertexShaderTemps = 32;
1022
1023	#if 0
1024	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1025	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1026	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1027	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1028	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1029	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1030	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1031	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1032	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1033	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1034	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1035	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1036	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1037	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1038	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1039	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1040	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1041	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1042	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1043	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1044	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1045	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1046	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1047	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1048	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1049	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1050	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1051	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1052	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1053	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1054	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1055	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1056	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1057	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1058	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1059	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1060	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1061	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1062	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1063	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1064	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1065	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1066	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1067	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1068	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1069	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1070	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1071	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1072	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1073	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1074	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1075	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1076	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1077	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1078	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1079	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1080	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1081	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1082	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1083	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1084	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1085	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1086	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1087	#endif
1088
1089	LogRel(("VMSVGA3d: Capabilities:\n"));
1090	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1091	pState->caps.maxActiveLights, pState->caps.maxTextures));
1092	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1093	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1094	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1095	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1096	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1097	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1098	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1099	pState->caps.maxFragmentShaderTemps,
1100	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1101	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1102	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d\n",
1103	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion));
1104	LogRel(("VMSVGA3d: fS3TCSupported=%-2d fTextureFilterAnisotropicSupported=%d\n",
1105	pState->caps.fS3TCSupported, pState->caps.fTextureFilterAnisotropicSupported));
1106
1107
1108	/* Initialize the shader library. */
1109	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1110	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1111	rc = ShaderInitLib(&pState->ShaderIf);
1112	AssertRC(rc);
1113
1114	/* Cleanup */
1115	rc = vmsvga3dContextDestroy(pThis, 1);
1116	AssertRC(rc);
1117	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1118	rc = vmsvga3dContextDestroy(pThis, 2);
1119	AssertRC(rc);
1120	#endif
1121
1122	if ( pState->rsGLVersion < 3.0
1123	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1124	{
1125	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1126	return VERR_NOT_IMPLEMENTED;
1127	}
1128
1129	return VINF_SUCCESS;
1130	}
1131
1132	int vmsvga3dReset(PVGASTATE pThis)
1133	{
1134	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1135	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1136
1137	/* Destroy all leftover surfaces. */
1138	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1139	{
1140	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1141	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1142	}
1143
1144	/* Destroy all leftover contexts. */
1145	for (uint32_t i = 0; i < pState->cContexts; i++)
1146	{
1147	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1148	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1149	}
1150
1151	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1152	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1153
1154	return VINF_SUCCESS;
1155	}
1156
1157	int vmsvga3dTerminate(PVGASTATE pThis)
1158	{
1159	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1160	AssertReturn(pState, VERR_WRONG_ORDER);
1161	int rc;
1162
1163	rc = vmsvga3dReset(pThis);
1164	AssertRCReturn(rc, rc);
1165
1166	/* Terminate the shader library. */
1167	rc = ShaderDestroyLib();
1168	AssertRC(rc);
1169
1170	#ifdef RT_OS_WINDOWS
1171	/* Terminate the window creation thread. */
1172	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1173	AssertRCReturn(rc, rc);
1174
1175	RTSemEventDestroy(pState->WndRequestSem);
1176	#elif defined(RT_OS_DARWIN)
1177
1178	#elif defined(RT_OS_LINUX)
1179	/* signal to the thread that it is supposed to exit */
1180	pState->bTerminate = true;
1181	/* wait for it to terminate */
1182	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1183	AssertRC(rc);
1184	XCloseDisplay(pState->display);
1185	#endif
1186
1187	RTStrFree(pState->pszExtensions);
1188	pState->pszExtensions = NULL;
1189	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1190	RTStrFree(pState->pszOtherExtensions);
1191	#endif
1192	pState->pszOtherExtensions = NULL;
1193
1194	return VINF_SUCCESS;
1195	}
1196
1197
1198	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1199	{
1200	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1201	* redraw it. */
1202
1203	#ifdef RT_OS_DARWIN
1204	RT_NOREF(pOldViewport);
1205	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1206	if ( pState
1207	&& idScreen == 0
1208	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1209	{
1210	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1211	}
1212	#else
1213	RT_NOREF(pThis, idScreen, pOldViewport);
1214	#endif
1215	}
1216
1217
1218	/**
1219	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1220	* given surface format capability.
1221	*
1222	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1223	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1224	*
1225	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1226	* of implicit guest expectations:
1227	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1228	*/
1229	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1230	{
1231	uint32_t result = 0;
1232
1233	/** @todo missing:
1234	*
1235	* SVGA3DFORMAT_OP_PIXELSIZE
1236	*/
1237
1238	switch (idx3dCaps)
1239	{
1240	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1241	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1242	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1243	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1244	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1245	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1246	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1247	break;
1248
1249	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1250	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1251	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1252	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1253	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1254	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1255	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1256	break;
1257	}
1258
1259	/** @todo check hardware caps! */
1260	switch (idx3dCaps)
1261	{
1262	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1263	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1264	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1265	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1266	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1267	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1268	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1269	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1270	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1271	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1272	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1273	result \|= SVGA3DFORMAT_OP_TEXTURE
1274	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1275	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1276	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1277	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1278	\| SVGA3DFORMAT_OP_CUBETEXTURE
1279	\| SVGA3DFORMAT_OP_SRGBREAD
1280	\| SVGA3DFORMAT_OP_SRGBWRITE;
1281	break;
1282
1283	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1284	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1285	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1286	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1287	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1288	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1289	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1290	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1291	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1292	break;
1293
1294	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1295	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1296	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1297	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1298	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1299	result \|= SVGA3DFORMAT_OP_TEXTURE
1300	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1301	\| SVGA3DFORMAT_OP_CUBETEXTURE
1302	\| SVGA3DFORMAT_OP_SRGBREAD;
1303	break;
1304
1305	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1306	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1307	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1308	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1309	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1310	break;
1311
1312	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1313	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1314	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1315	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1316	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1317	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1318	result \|= SVGA3DFORMAT_OP_TEXTURE
1319	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1320	\| SVGA3DFORMAT_OP_CUBETEXTURE
1321	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1322	break;
1323
1324	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1325	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1326	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1327	result \|= SVGA3DFORMAT_OP_TEXTURE
1328	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1329	\| SVGA3DFORMAT_OP_CUBETEXTURE
1330	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1331	break;
1332
1333	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1334	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1335	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1336	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1337	\| SVGA3DFORMAT_OP_TEXTURE;
1338	break;
1339
1340	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1341	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1342	break;
1343	}
1344	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1345
1346	return result;
1347	}
1348
1349	#if 0 /* unused */
1350	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1351	{
1352	RT_NOREF(pState3D, idx3dCaps);
1353
1354	/** @todo test this somehow */
1355	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1356
1357	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1358	return result;
1359	}
1360	#endif
1361
1362
1363	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1364	{
1365	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1366	AssertReturn(pState, VERR_NO_MEMORY);
1367	int rc = VINF_SUCCESS;
1368
1369	*pu32Val = 0;
1370
1371	/*
1372	* The capabilities access by current (2015-03-01) linux sources (gallium,
1373	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1374	* aren't access.
1375	*/
1376
1377	switch (idx3dCaps)
1378	{
1379	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1380	case SVGA3D_DEVCAP_3D:
1381	pu32Val = 1; / boolean? */
1382	break;
1383
1384	case SVGA3D_DEVCAP_MAX_LIGHTS:
1385	*pu32Val = pState->caps.maxActiveLights;
1386	break;
1387
1388	case SVGA3D_DEVCAP_MAX_TEXTURES:
1389	*pu32Val = pState->caps.maxTextures;
1390	break;
1391
1392	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1393	*pu32Val = pState->caps.maxClipDistances;
1394	break;
1395
1396	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1397	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1398	*pu32Val = pState->caps.vertexShaderVersion;
1399	break;
1400
1401	case SVGA3D_DEVCAP_VERTEX_SHADER:
1402	/* boolean? */
1403	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1404	break;
1405
1406	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1407	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1408	*pu32Val = pState->caps.fragmentShaderVersion;
1409	break;
1410
1411	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1412	/* boolean? */
1413	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1414	break;
1415
1416	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1417	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1418	/* Must be obsolete by now; surface format caps specify the same thing. */
1419	rc = VERR_INVALID_PARAMETER;
1420	break;
1421
1422	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1423	break;
1424
1425	/*
1426	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1427	* return TRUE. Even on physical hardware that does not support
1428	* these formats natively, the SVGA3D device will provide an emulation
1429	* which should be invisible to the guest OS.
1430	*/
1431	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1432	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1433	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1434	*pu32Val = 1;
1435	break;
1436
1437	case SVGA3D_DEVCAP_QUERY_TYPES:
1438	break;
1439
1440	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1441	break;
1442
1443	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1444	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1445	AssertCompile(sizeof(uint32_t) == sizeof(float));
1446	(float )pu32Val = pState->caps.flPointSize[1];
1447	break;
1448
1449	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1450	/** @todo ?? */
1451	rc = VERR_INVALID_PARAMETER;
1452	break;
1453
1454	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1455	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1456	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1457	*pu32Val = pState->caps.maxRectangleTextureSize;
1458	break;
1459
1460	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1461	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1462	//*pu32Val = pCaps->MaxVolumeExtent;
1463	*pu32Val = 256;
1464	break;
1465
1466	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1467	pu32Val = 32768; / hardcoded in Wine */
1468	break;
1469
1470	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1471	//*pu32Val = pCaps->MaxTextureAspectRatio;
1472	break;
1473
1474	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1475	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1476	*pu32Val = pState->caps.maxTextureAnisotropy;
1477	break;
1478
1479	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1480	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1481	pu32Val = 0xFFFFF; / hardcoded in Wine */
1482	break;
1483
1484	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1485	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1486	*pu32Val = pState->caps.maxVertexShaderInstructions;
1487	break;
1488
1489	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1490	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1491	break;
1492
1493	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1494	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1495	*pu32Val = pState->caps.maxVertexShaderTemps;
1496	break;
1497
1498	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1499	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1500	*pu32Val = pState->caps.maxFragmentShaderTemps;
1501	break;
1502
1503	case SVGA3D_DEVCAP_TEXTURE_OPS:
1504	break;
1505
1506	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1507	break;
1508
1509	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1510	break;
1511
1512	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1513	break;
1514
1515	case SVGA3D_DEVCAP_SUPERSAMPLE:
1516	break;
1517
1518	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1519	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1520	break;
1521
1522	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1523	break;
1524
1525	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1526	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1527	*pu32Val = pState->caps.maxColorAttachments;
1528	break;
1529
1530	/*
1531	* This is the maximum number of SVGA context IDs that the guest
1532	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1533	*/
1534	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1535	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1536	break;
1537
1538	/*
1539	* This is the maximum number of SVGA surface IDs that the guest
1540	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1541	*/
1542	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1543	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1544	break;
1545
1546	#if 0 /* Appeared more recently, not yet implemented. */
1547	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1548	case SVGA3D_DEVCAP_LINE_AA:
1549	break;
1550	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1551	case SVGA3D_DEVCAP_LINE_STIPPLE:
1552	break;
1553	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1554	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1555	break;
1556	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1557	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1558	break;
1559	#endif
1560
1561	/*
1562	* Supported surface formats.
1563	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1564	*/
1565	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1566	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1567	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1568	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1569	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1570	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1571	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1572	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1573	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1574	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1575	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1576	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1577	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1578	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1579	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1580	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1581	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1582	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1583	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1584	break;
1585
1586	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1587	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1588	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1589	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1590	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1591	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1592	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1593	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1594	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1595	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1596	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1597	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1598	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1599	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1600	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1601	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1602	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1603	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1604	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1605	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1606	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1607	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1608	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1609	break;
1610
1611	/* Linux: Not referenced in current sources. */
1612	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1613	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1614	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1615	rc = VERR_INVALID_PARAMETER;
1616	*pu32Val = 0;
1617	break;
1618
1619	default:
1620	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1621	rc = VERR_INVALID_PARAMETER;
1622	break;
1623	}
1624
1625	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1626	return rc;
1627	}
1628
1629	/**
1630	* Convert SVGA format value to its OpenGL equivalent
1631	*
1632	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1633	* help from wined3dformat_from_d3dformat().
1634	*/
1635	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1636	{
1637	#if 0
1638	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1639	#else
1640	#define AssertTestFmt(f) do {} while(0)
1641	#endif
1642	switch (format)
1643	{
1644	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1645	pSurface->internalFormatGL = GL_RGB8;
1646	pSurface->formatGL = GL_BGRA;
1647	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1648	break;
1649	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1650	pSurface->internalFormatGL = GL_RGBA8;
1651	pSurface->formatGL = GL_BGRA;
1652	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1653	break;
1654	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1655	pSurface->internalFormatGL = GL_RGB5;
1656	pSurface->formatGL = GL_RGB;
1657	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1658	AssertTestFmt(SVGA3D_R5G6B5);
1659	break;
1660	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1661	pSurface->internalFormatGL = GL_RGB5;
1662	pSurface->formatGL = GL_BGRA;
1663	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1664	AssertTestFmt(SVGA3D_X1R5G5B5);
1665	break;
1666	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1667	pSurface->internalFormatGL = GL_RGB5_A1;
1668	pSurface->formatGL = GL_BGRA;
1669	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1670	AssertTestFmt(SVGA3D_A1R5G5B5);
1671	break;
1672	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1673	pSurface->internalFormatGL = GL_RGBA4;
1674	pSurface->formatGL = GL_BGRA;
1675	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1676	AssertTestFmt(SVGA3D_A4R4G4B4);
1677	break;
1678
1679	case SVGA3D_R8G8B8A8_UNORM:
1680	pSurface->internalFormatGL = GL_RGBA8;
1681	pSurface->formatGL = GL_RGBA;
1682	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1683	break;
1684
1685	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1686	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1687	pSurface->formatGL = GL_DEPTH_COMPONENT;
1688	pSurface->typeGL = GL_UNSIGNED_INT;
1689	break;
1690	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1691	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1692	pSurface->formatGL = GL_DEPTH_COMPONENT;
1693	pSurface->typeGL = GL_UNSIGNED_SHORT;
1694	AssertTestFmt(SVGA3D_Z_D16);
1695	break;
1696	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1697	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1698	pSurface->formatGL = GL_DEPTH_STENCIL;
1699	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1700	break;
1701	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1702	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1703	pSurface->formatGL = GL_DEPTH_STENCIL;
1704	pSurface->typeGL = GL_UNSIGNED_SHORT;
1705	/** @todo Wine sources hints at no hw support for this, so test this one! */
1706	AssertTestFmt(SVGA3D_Z_D15S1);
1707	break;
1708	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1709	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1710	pSurface->formatGL = GL_DEPTH_COMPONENT;
1711	pSurface->typeGL = GL_UNSIGNED_INT;
1712	AssertTestFmt(SVGA3D_Z_D24X8);
1713	break;
1714
1715	/* Advanced D3D9 depth formats. */
1716	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1717	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1718	pSurface->formatGL = GL_DEPTH_COMPONENT;
1719	pSurface->typeGL = GL_HALF_FLOAT;
1720	break;
1721
1722	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1723	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1724	pSurface->formatGL = GL_DEPTH_COMPONENT;
1725	pSurface->typeGL = GL_FLOAT; /* ??? */
1726	break;
1727
1728	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1729	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1730	pSurface->formatGL = GL_DEPTH_STENCIL;
1731	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1732	break;
1733
1734	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1735	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1736	pSurface->formatGL = GL_RGBA; /* not used */
1737	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1738	break;
1739
1740	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1741	/* "DXT2 and DXT3 are the same from an API perspective." */
1742	RT_FALL_THRU();
1743	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1744	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1745	pSurface->formatGL = GL_RGBA; /* not used */
1746	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1747	break;
1748
1749	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1750	/* "DXT4 and DXT5 are the same from an API perspective." */
1751	RT_FALL_THRU();
1752	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1753	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1754	pSurface->formatGL = GL_RGBA; /* not used */
1755	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1756	break;
1757
1758	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1759	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1760	pSurface->formatGL = GL_LUMINANCE;
1761	pSurface->typeGL = GL_UNSIGNED_BYTE;
1762	break;
1763
1764	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1765	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1766	pSurface->formatGL = GL_LUMINANCE;
1767	pSurface->typeGL = GL_UNSIGNED_SHORT;
1768	break;
1769
1770	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1771	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1772	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1773	pSurface->typeGL = GL_UNSIGNED_BYTE;
1774	break;
1775
1776	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1777	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1778	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1779	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1780	break;
1781
1782	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1783	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1784	pSurface->formatGL = GL_ALPHA;
1785	pSurface->typeGL = GL_UNSIGNED_BYTE;
1786	break;
1787
1788	#if 0
1789
1790	/* Bump-map formats */
1791	case SVGA3D_BUMPU8V8:
1792	return D3DFMT_V8U8;
1793	case SVGA3D_BUMPL6V5U5:
1794	return D3DFMT_L6V5U5;
1795	case SVGA3D_BUMPX8L8V8U8:
1796	return D3DFMT_X8L8V8U8;
1797	case SVGA3D_BUMPL8V8U8:
1798	/* No corresponding D3D9 equivalent. */
1799	AssertFailedReturn(D3DFMT_UNKNOWN);
1800	/* signed bump-map formats */
1801	case SVGA3D_V8U8:
1802	return D3DFMT_V8U8;
1803	case SVGA3D_Q8W8V8U8:
1804	return D3DFMT_Q8W8V8U8;
1805	case SVGA3D_CxV8U8:
1806	return D3DFMT_CxV8U8;
1807	/* mixed bump-map formats */
1808	case SVGA3D_X8L8V8U8:
1809	return D3DFMT_X8L8V8U8;
1810	case SVGA3D_A2W10V10U10:
1811	return D3DFMT_A2W10V10U10;
1812	#endif
1813
1814	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1815	pSurface->internalFormatGL = GL_RGBA16F;
1816	pSurface->formatGL = GL_RGBA;
1817	#if 0 /* bird: wine uses half float, sounds correct to me... */
1818	pSurface->typeGL = GL_FLOAT;
1819	#else
1820	pSurface->typeGL = GL_HALF_FLOAT;
1821	AssertTestFmt(SVGA3D_ARGB_S10E5);
1822	#endif
1823	break;
1824
1825	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1826	pSurface->internalFormatGL = GL_RGBA32F;
1827	pSurface->formatGL = GL_RGBA;
1828	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1829	break;
1830
1831	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1832	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1833	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1834	pSurface->formatGL = GL_RGBA;
1835	#else
1836	pSurface->formatGL = GL_BGRA;
1837	#endif
1838	pSurface->typeGL = GL_UNSIGNED_INT;
1839	AssertTestFmt(SVGA3D_A2R10G10B10);
1840	break;
1841
1842
1843	/* Single- and dual-component floating point formats */
1844	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1845	pSurface->internalFormatGL = GL_R16F;
1846	pSurface->formatGL = GL_RED;
1847	#if 0 /* bird: wine uses half float, sounds correct to me... */
1848	pSurface->typeGL = GL_FLOAT;
1849	#else
1850	pSurface->typeGL = GL_HALF_FLOAT;
1851	AssertTestFmt(SVGA3D_R_S10E5);
1852	#endif
1853	break;
1854	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1855	pSurface->internalFormatGL = GL_R32F;
1856	pSurface->formatGL = GL_RED;
1857	pSurface->typeGL = GL_FLOAT;
1858	break;
1859	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1860	pSurface->internalFormatGL = GL_RG16F;
1861	pSurface->formatGL = GL_RG;
1862	#if 0 /* bird: wine uses half float, sounds correct to me... */
1863	pSurface->typeGL = GL_FLOAT;
1864	#else
1865	pSurface->typeGL = GL_HALF_FLOAT;
1866	AssertTestFmt(SVGA3D_RG_S10E5);
1867	#endif
1868	break;
1869	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1870	pSurface->internalFormatGL = GL_RG32F;
1871	pSurface->formatGL = GL_RG;
1872	pSurface->typeGL = GL_FLOAT;
1873	break;
1874
1875	/*
1876	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1877	* the most efficient format to use when creating new surfaces
1878	* expressly for index or vertex data.
1879	*/
1880	case SVGA3D_BUFFER:
1881	pSurface->internalFormatGL = -1;
1882	pSurface->formatGL = -1;
1883	pSurface->typeGL = -1;
1884	break;
1885
1886	#if 0
1887	return D3DFMT_UNKNOWN;
1888
1889	case SVGA3D_V16U16:
1890	return D3DFMT_V16U16;
1891	#endif
1892
1893	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1894	pSurface->internalFormatGL = GL_RG16;
1895	pSurface->formatGL = GL_RG;
1896	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1897	pSurface->typeGL = GL_UNSIGNED_INT;
1898	#else
1899	pSurface->typeGL = GL_UNSIGNED_SHORT;
1900	AssertTestFmt(SVGA3D_G16R16);
1901	#endif
1902	break;
1903
1904	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1905	pSurface->internalFormatGL = GL_RGBA16;
1906	pSurface->formatGL = GL_RGBA;
1907	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1908	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1909	#else
1910	pSurface->typeGL = GL_UNSIGNED_SHORT;
1911	AssertTestFmt(SVGA3D_A16B16G16R16);
1912	#endif
1913	break;
1914
1915	case SVGA3D_R8G8B8A8_SNORM:
1916	pSurface->internalFormatGL = GL_RGB8;
1917	pSurface->formatGL = GL_BGRA;
1918	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1919	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1920	break;
1921	case SVGA3D_R16G16_UNORM:
1922	pSurface->internalFormatGL = GL_RG16;
1923	pSurface->formatGL = GL_RG;
1924	pSurface->typeGL = GL_UNSIGNED_SHORT;
1925	AssertTestFmt(SVGA3D_R16G16_UNORM);
1926	break;
1927
1928	/* Packed Video formats */
1929	case SVGA3D_UYVY:
1930	case SVGA3D_YUY2:
1931	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1932	pSurface->fEmulated = true;
1933	pSurface->internalFormatGL = GL_RGBA8;
1934	pSurface->formatGL = GL_BGRA;
1935	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1936	break;
1937
1938	#if 0
1939	/* Planar video formats */
1940	case SVGA3D_NV12:
1941	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1942
1943	/* Video format with alpha */
1944	case SVGA3D_AYUV:
1945	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1946
1947	case SVGA3D_BC4_UNORM:
1948	case SVGA3D_BC5_UNORM:
1949	/* Unknown; only in DX10 & 11 */
1950	break;
1951	#endif
1952	default:
1953	AssertMsgFailed(("Unsupported format %d\n", format));
1954	break;
1955	}
1956	#undef AssertTestFmt
1957	}
1958
1959
1960	#if 0
1961	/**
1962	* Convert SVGA multi sample count value to its D3D equivalent
1963	*/
1964	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1965	{
1966	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1967	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1968
1969	if (multisampleCount > 16)
1970	return D3DMULTISAMPLE_NONE;
1971
1972	/** @todo exact same mapping as d3d? */
1973	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1974	}
1975	#endif
1976
1977	/**
1978	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1979	*
1980	* @param pState The VMSVGA3d state.
1981	* @param pSurface The surface being destroyed.
1982	*/
1983	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1984	{
1985	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1986	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1987
1988	switch (pSurface->enmOGLResType)
1989	{
1990	case VMSVGA3D_OGLRESTYPE_BUFFER:
1991	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
1992	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1993	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1994	break;
1995
1996	case VMSVGA3D_OGLRESTYPE_TEXTURE:
1997	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
1998	glDeleteTextures(1, &pSurface->oglId.texture);
1999	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2000	if (pSurface->fEmulated)
2001	{
2002	if (pSurface->idEmulated)
2003	{
2004	glDeleteTextures(1, &pSurface->idEmulated);
2005	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2006	}
2007	}
2008	else
2009	{
2010	Assert(!pSurface->idEmulated);
2011	}
2012	break;
2013
2014	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2015	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2016	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2017	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2018	break;
2019
2020	default:
2021	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2022	("hint=%#x, type=%d\n",
2023	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2024	break;
2025	}
2026	}
2027
2028
2029	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2030	{
2031	for (uint32_t i = 0; i < cCopyBoxes; i++)
2032	{
2033	SVGA3dBox destBox, srcBox;
2034
2035	srcBox.x = pBox[i].srcx;
2036	srcBox.y = pBox[i].srcy;
2037	srcBox.z = pBox[i].srcz;
2038	srcBox.w = pBox[i].w;
2039	srcBox.h = pBox[i].h;
2040	srcBox.d = pBox[i].d;
2041
2042	destBox.x = pBox[i].x;
2043	destBox.y = pBox[i].y;
2044	destBox.z = pBox[i].z;
2045	destBox.w = pBox[i].w;
2046	destBox.h = pBox[i].h;
2047	destBox.d = pBox[i].d;
2048
2049	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2050	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2051	AssertRCReturn(rc, rc);
2052	}
2053	return VINF_SUCCESS;
2054	}
2055
2056
2057	/**
2058	* Save texture unpacking parameters and loads those appropriate for the given
2059	* surface.
2060	*
2061	* @param pState The VMSVGA3D state structure.
2062	* @param pContext The active context.
2063	* @param pSurface The surface.
2064	* @param pSave Where to save stuff.
2065	*/
2066	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2067	PVMSVGAPACKPARAMS pSave)
2068	{
2069	RT_NOREF(pState);
2070
2071	/*
2072	* Save (ignore errors, setting the defaults we want and avoids restore).
2073	*/
2074	pSave->iAlignment = 1;
2075	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2076	pSave->cxRow = 0;
2077	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2078
2079	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2080	pSave->cyImage = 0;
2081	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2082	Assert(pSave->cyImage == 0);
2083
2084	pSave->fSwapBytes = GL_FALSE;
2085	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2086	Assert(pSave->fSwapBytes == GL_FALSE);
2087
2088	pSave->fLsbFirst = GL_FALSE;
2089	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2090	Assert(pSave->fLsbFirst == GL_FALSE);
2091
2092	pSave->cSkipRows = 0;
2093	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2094	Assert(pSave->cSkipRows == 0);
2095
2096	pSave->cSkipPixels = 0;
2097	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2098	Assert(pSave->cSkipPixels == 0);
2099
2100	pSave->cSkipImages = 0;
2101	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2102	Assert(pSave->cSkipImages == 0);
2103
2104	VMSVGA3D_CLEAR_GL_ERRORS();
2105	#endif
2106
2107	/*
2108	* Setup unpack.
2109	*
2110	* Note! We use 1 as alignment here because we currently don't do any
2111	* aligning of line pitches anywhere.
2112	*/
2113	NOREF(pSurface);
2114	if (pSave->iAlignment != 1)
2115	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2116	if (pSave->cxRow != 0)
2117	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2118	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2119	if (pSave->cyImage != 0)
2120	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2121	if (pSave->fSwapBytes != 0)
2122	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2123	if (pSave->fLsbFirst != 0)
2124	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2125	if (pSave->cSkipRows != 0)
2126	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2127	if (pSave->cSkipPixels != 0)
2128	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2129	if (pSave->cSkipImages != 0)
2130	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2131	#endif
2132	}
2133
2134
2135	/**
2136	* Restores texture unpacking parameters.
2137	*
2138	* @param pState The VMSVGA3D state structure.
2139	* @param pContext The active context.
2140	* @param pSurface The surface.
2141	* @param pSave Where stuff was saved.
2142	*/
2143	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2144	PCVMSVGAPACKPARAMS pSave)
2145	{
2146	RT_NOREF(pState, pSurface);
2147
2148	if (pSave->iAlignment != 1)
2149	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2150	if (pSave->cxRow != 0)
2151	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2152	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2153	if (pSave->cyImage != 0)
2154	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2155	if (pSave->fSwapBytes != 0)
2156	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2157	if (pSave->fLsbFirst != 0)
2158	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2159	if (pSave->cSkipRows != 0)
2160	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2161	if (pSave->cSkipPixels != 0)
2162	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2163	if (pSave->cSkipImages != 0)
2164	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2165	#endif
2166	}
2167
2168	/**
2169	* Create D3D/OpenGL texture object for the specified surface.
2170	*
2171	* Surfaces are created when needed.
2172	*
2173	* @param pState The VMSVGA3d state.
2174	* @param pContext The context.
2175	* @param idAssociatedContext Probably the same as pContext->id.
2176	* @param pSurface The surface to create the texture for.
2177	*/
2178	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2179	PVMSVGA3DSURFACE pSurface)
2180	{
2181	RT_NOREF(idAssociatedContext);
2182
2183	LogFunc(("sid=%u\n", pSurface->id));
2184
2185	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2186
2187	/* Fugure out what kind of texture we are creating. */
2188	GLenum binding;
2189	GLenum target;
2190	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2191	{
2192	Assert(pSurface->cFaces == 6);
2193
2194	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2195	target = GL_TEXTURE_CUBE_MAP;
2196	}
2197	else
2198	{
2199	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2200	{
2201	binding = GL_TEXTURE_BINDING_3D;
2202	target = GL_TEXTURE_3D;
2203	}
2204	else
2205	{
2206	Assert(pSurface->cFaces == 1);
2207
2208	binding = GL_TEXTURE_BINDING_2D;
2209	target = GL_TEXTURE_2D;
2210	}
2211	}
2212
2213	/* All textures are created in the SharedCtx. */
2214	uint32_t idPrevCtx = pState->idActiveContext;
2215	pContext = &pState->SharedCtx;
2216	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2217
2218	glGenTextures(1, &pSurface->oglId.texture);
2219	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2220	if (pSurface->fEmulated)
2221	{
2222	glGenTextures(1, &pSurface->idEmulated);
2223	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2224	}
2225	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2226
2227	GLint activeTexture = 0;
2228	glGetIntegerv(binding, &activeTexture);
2229	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2230
2231	/* Must bind texture to the current context in order to change it. */
2232	glBindTexture(target, pSurface->oglId.texture);
2233	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2234
2235	/* Set the unpacking parameters. */
2236	VMSVGAPACKPARAMS SavedParams;
2237	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2238
2239	/** @todo Set the mip map generation filter settings. */
2240
2241	/* Set the mipmap base and max level parameters. */
2242	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2243	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2244	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2246
2247	if (pSurface->fDirty)
2248	LogFunc(("sync dirty texture\n"));
2249
2250	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2251	if (target == GL_TEXTURE_3D)
2252	{
2253	for (uint32_t i = 0; i < numMipLevels; ++i)
2254	{
2255	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2256	* exposing random host memory to the guest and helps a with the fedora 21 surface
2257	* corruption issues (launchpad, background, search field, login).
2258	*/
2259	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2260
2261	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2262	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2263
2264	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2265	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2266	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2267	{
2268	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2269	i,
2270	pSurface->internalFormatGL,
2271	pMipLevel->mipmapSize.width,
2272	pMipLevel->mipmapSize.height,
2273	pMipLevel->mipmapSize.depth,
2274	0,
2275	pMipLevel->cbSurface,
2276	pMipLevel->pSurfaceData);
2277	}
2278	else
2279	{
2280	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2281	i,
2282	pSurface->internalFormatGL,
2283	pMipLevel->mipmapSize.width,
2284	pMipLevel->mipmapSize.height,
2285	pMipLevel->mipmapSize.depth,
2286	0, /* border */
2287	pSurface->formatGL,
2288	pSurface->typeGL,
2289	pMipLevel->pSurfaceData);
2290	}
2291	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2292
2293	pMipLevel->fDirty = false;
2294	}
2295	}
2296	else if (target == GL_TEXTURE_CUBE_MAP)
2297	{
2298	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2299	{
2300	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2301
2302	for (uint32_t i = 0; i < numMipLevels; ++i)
2303	{
2304	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2305	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2306	Assert(pMipLevel->mipmapSize.depth == 1);
2307
2308	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2309	iFace, i, pMipLevel->fDirty));
2310
2311	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2312	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2313	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2314	{
2315	pState->ext.glCompressedTexImage2D(Face,
2316	i,
2317	pSurface->internalFormatGL,
2318	pMipLevel->mipmapSize.width,
2319	pMipLevel->mipmapSize.height,
2320	0,
2321	pMipLevel->cbSurface,
2322	pMipLevel->pSurfaceData);
2323	}
2324	else
2325	{
2326	glTexImage2D(Face,
2327	i,
2328	pSurface->internalFormatGL,
2329	pMipLevel->mipmapSize.width,
2330	pMipLevel->mipmapSize.height,
2331	0,
2332	pSurface->formatGL,
2333	pSurface->typeGL,
2334	pMipLevel->pSurfaceData);
2335	}
2336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2337
2338	pMipLevel->fDirty = false;
2339	}
2340	}
2341	}
2342	else if (target == GL_TEXTURE_2D)
2343	{
2344	for (uint32_t i = 0; i < numMipLevels; ++i)
2345	{
2346	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2347	* exposing random host memory to the guest and helps a with the fedora 21 surface
2348	* corruption issues (launchpad, background, search field, login).
2349	*/
2350	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2351	Assert(pMipLevel->mipmapSize.depth == 1);
2352
2353	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2354	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2355
2356	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2357	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2358	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2359	{
2360	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2361	i,
2362	pSurface->internalFormatGL,
2363	pMipLevel->mipmapSize.width,
2364	pMipLevel->mipmapSize.height,
2365	0,
2366	pMipLevel->cbSurface,
2367	pMipLevel->pSurfaceData);
2368	}
2369	else
2370	{
2371	glTexImage2D(GL_TEXTURE_2D,
2372	i,
2373	pSurface->internalFormatGL,
2374	pMipLevel->mipmapSize.width,
2375	pMipLevel->mipmapSize.height,
2376	0,
2377	pSurface->formatGL,
2378	pSurface->typeGL,
2379	NULL);
2380	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2381
2382	if (pSurface->fEmulated)
2383	{
2384	/* Bind the emulated texture and init it. */
2385	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2386	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2387
2388	glTexImage2D(GL_TEXTURE_2D,
2389	i,
2390	pSurface->internalFormatGL,
2391	pMipLevel->mipmapSize.width,
2392	pMipLevel->mipmapSize.height,
2393	0,
2394	pSurface->formatGL,
2395	pSurface->typeGL,
2396	NULL);
2397	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2398	}
2399
2400	/* Fetch texture data: either to the actual or to the emulated texture.
2401	* The pSurfaceData buffer may be smaller than the entire texture
2402	* for emulated formats, in which case only part of the texture is synched.
2403	*/
2404	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2405	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2406	glTexSubImage2D(GL_TEXTURE_2D,
2407	i,
2408	0,
2409	0,
2410	cBlocksX,
2411	cBlocksY,
2412	pSurface->formatGL,
2413	pSurface->typeGL,
2414	pMipLevel->pSurfaceData);
2415	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2416
2417	if (pSurface->fEmulated)
2418	{
2419	/* Update the actual texture using the format converter. */
2420	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2421
2422	/* Rebind the actual texture. */
2423	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2424	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2425	}
2426	}
2427	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2428
2429	pMipLevel->fDirty = false;
2430	}
2431	}
2432
2433	pSurface->fDirty = false;
2434
2435	/* Restore unpacking parameters. */
2436	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2437
2438	/* Restore the old active texture. */
2439	glBindTexture(target, activeTexture);
2440	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2441
2442	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2443	pSurface->targetGL = target;
2444	pSurface->bindingGL = binding;
2445
2446	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2447	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2448	return VINF_SUCCESS;
2449	}
2450
2451
2452	/**
2453	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2454	*
2455	* @returns VBox status code.
2456	* @param pThis The VGA device instance.
2457	* @param pState The VMSVGA3d state.
2458	* @param pDstSurface The destination host surface.
2459	* @param uDstFace The destination face (valid).
2460	* @param uDstMipmap The destination mipmap level (valid).
2461	* @param pDstBox The destination box.
2462	* @param pSrcSurface The source host surface.
2463	* @param uSrcFace The destination face (valid).
2464	* @param uSrcMipmap The source mimap level (valid).
2465	* @param pSrcBox The source box.
2466	* @param enmMode The strecht blt mode .
2467	* @param pContext The VMSVGA3d context (already current for OGL).
2468	*/
2469	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2470	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2471	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2472	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2473	{
2474	RT_NOREF(pThis);
2475
2476	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2477	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2478
2479	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2480	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2481	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2482	{
2483	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2484	glAttachment = GL_DEPTH_ATTACHMENT;
2485	glMask = GL_DEPTH_BUFFER_BIT;
2486	}
2487
2488	/* Activate the read and draw framebuffer objects. */
2489	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2491	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2492	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2493
2494	/* Bind the source and destination objects to the right place. */
2495	GLenum textarget;
2496	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2497	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2498	else
2499	{
2500	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2501	textarget = GL_TEXTURE_2D;
2502	}
2503	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2504	pSrcSurface->oglId.texture, uSrcMipmap);
2505	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2506
2507	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2508	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2509	else
2510	{
2511	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2512	textarget = GL_TEXTURE_2D;
2513	}
2514	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2515	pDstSurface->oglId.texture, uDstMipmap);
2516	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2517
2518	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2519	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2520	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2521	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2522	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2523
2524	pState->ext.glBlitFramebuffer(pSrcBox->x,
2525	pSrcBox->y,
2526	pSrcBox->x + pSrcBox->w, /* exclusive. */
2527	pSrcBox->y + pSrcBox->h,
2528	pDstBox->x,
2529	pDstBox->y,
2530	pDstBox->x + pDstBox->w, /* exclusive. */
2531	pDstBox->y + pDstBox->h,
2532	glMask,
2533	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2534	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2535
2536	/* Reset the frame buffer association */
2537	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2538	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2539
2540	return VINF_SUCCESS;
2541	}
2542
2543	/**
2544	* Save texture packing parameters and loads those appropriate for the given
2545	* surface.
2546	*
2547	* @param pState The VMSVGA3D state structure.
2548	* @param pContext The active context.
2549	* @param pSurface The surface.
2550	* @param pSave Where to save stuff.
2551	*/
2552	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2553	PVMSVGAPACKPARAMS pSave)
2554	{
2555	RT_NOREF(pState);
2556	/*
2557	* Save (ignore errors, setting the defaults we want and avoids restore).
2558	*/
2559	pSave->iAlignment = 1;
2560	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2561	pSave->cxRow = 0;
2562	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2563
2564	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2565	pSave->cyImage = 0;
2566	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2567	Assert(pSave->cyImage == 0);
2568
2569	pSave->fSwapBytes = GL_FALSE;
2570	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2571	Assert(pSave->fSwapBytes == GL_FALSE);
2572
2573	pSave->fLsbFirst = GL_FALSE;
2574	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2575	Assert(pSave->fLsbFirst == GL_FALSE);
2576
2577	pSave->cSkipRows = 0;
2578	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2579	Assert(pSave->cSkipRows == 0);
2580
2581	pSave->cSkipPixels = 0;
2582	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2583	Assert(pSave->cSkipPixels == 0);
2584
2585	pSave->cSkipImages = 0;
2586	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2587	Assert(pSave->cSkipImages == 0);
2588
2589	VMSVGA3D_CLEAR_GL_ERRORS();
2590	#endif
2591
2592	/*
2593	* Setup unpack.
2594	*
2595	* Note! We use 1 as alignment here because we currently don't do any
2596	* aligning of line pitches anywhere.
2597	*/
2598	NOREF(pSurface);
2599	if (pSave->iAlignment != 1)
2600	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2601	if (pSave->cxRow != 0)
2602	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2603	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2604	if (pSave->cyImage != 0)
2605	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2606	if (pSave->fSwapBytes != 0)
2607	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2608	if (pSave->fLsbFirst != 0)
2609	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2610	if (pSave->cSkipRows != 0)
2611	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2612	if (pSave->cSkipPixels != 0)
2613	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2614	if (pSave->cSkipImages != 0)
2615	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2616	#endif
2617	}
2618
2619
2620	/**
2621	* Restores texture packing parameters.
2622	*
2623	* @param pState The VMSVGA3D state structure.
2624	* @param pContext The active context.
2625	* @param pSurface The surface.
2626	* @param pSave Where stuff was saved.
2627	*/
2628	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2629	PCVMSVGAPACKPARAMS pSave)
2630	{
2631	RT_NOREF(pState, pSurface);
2632	if (pSave->iAlignment != 1)
2633	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2634	if (pSave->cxRow != 0)
2635	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2636	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2637	if (pSave->cyImage != 0)
2638	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2639	if (pSave->fSwapBytes != 0)
2640	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2641	if (pSave->fLsbFirst != 0)
2642	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2643	if (pSave->cSkipRows != 0)
2644	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2645	if (pSave->cSkipPixels != 0)
2646	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2647	if (pSave->cSkipImages != 0)
2648	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2649	#endif
2650	}
2651
2652
2653	/**
2654	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2655	*
2656	* @returns Failure status code or @a rc.
2657	* @param pThis The VGA device instance data.
2658	* @param pState The VMSVGA3d state.
2659	* @param pSurface The host surface.
2660	* @param pMipLevel Mipmap level. The caller knows it already.
2661	* @param uHostFace The host face (valid).
2662	* @param uHostMipmap The host mipmap level (valid).
2663	* @param GuestPtr The guest pointer.
2664	* @param cbGuestPitch The guest pitch.
2665	* @param transfer The transfer direction.
2666	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2667	* @param pContext The context (for OpenGL).
2668	* @param rc The current rc for all boxes.
2669	* @param iBox The current box number (for Direct 3D).
2670	*/
2671	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2672	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2673	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2674	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2675	{
2676	RT_NOREF(iBox);
2677
2678	switch (pSurface->enmOGLResType)
2679	{
2680	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2681	{
2682	uint32_t cbSurfacePitch;
2683	uint8_t *pDoubleBuffer;
2684	uint32_t offHst;
2685
2686	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2687	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2688	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2689	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2690
2691	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2692	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2693	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2694	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2695
2696	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2697	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2698	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2699
2700	GLenum texImageTarget;
2701	if (pSurface->targetGL == GL_TEXTURE_3D)
2702	{
2703	texImageTarget = GL_TEXTURE_3D;
2704	}
2705	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2706	{
2707	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2708	}
2709	else
2710	{
2711	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2712	texImageTarget = GL_TEXTURE_2D;
2713	}
2714
2715	/* The buffer must be large enough to hold entire texture in the OpenGL format.
2716	* Multiply by the width and height "reduction" factors.
2717	* This can allocate more memory than required, but it is simpler for now.
2718	* Actually cbBuf = cbGLPixel * pMipmapLevel->mipmapSize.width * pMipmapLevel->mipmapSize.height
2719	*/
2720	pDoubleBuffer = (uint8_t )RTMemAlloc(pMipLevel->cbSurface pSurface->cxBlock * pSurface->cyBlock);
2721	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2722
2723	if (transfer == SVGA3D_READ_HOST_VRAM)
2724	{
2725	GLint activeTexture;
2726
2727	/* Must bind texture to the current context in order to read it. */
2728	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2729	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2730
2731	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2732	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2733
2734	if (pSurface->fEmulated)
2735	{
2736	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2737	}
2738
2739	/* Set row length and alignment of the input data. */
2740	VMSVGAPACKPARAMS SavedParams;
2741	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2742
2743	glGetTexImage(texImageTarget,
2744	uHostMipmap,
2745	pSurface->formatGL,
2746	pSurface->typeGL,
2747	pDoubleBuffer);
2748	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2749
2750	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2751
2752	/* Restore the old active texture. */
2753	glBindTexture(pSurface->targetGL, activeTexture);
2754	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2755
2756	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2757	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2758	}
2759	else
2760	{
2761	/* The buffer will contain only the copied rectangle. */
2762	offHst = 0;
2763	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2764	}
2765
2766	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2767
2768	rc = vmsvgaR3GmrTransfer(pThis,
2769	transfer,
2770	pDoubleBuffer,
2771	pMipLevel->cbSurface,
2772	offHst,
2773	cbSurfacePitch,
2774	GuestPtr,
2775	offGst,
2776	cbGuestPitch,
2777	cBlocksX * pSurface->cbBlock,
2778	cBlocksY);
2779	AssertRC(rc);
2780
2781	/* Update the opengl surface data. */
2782	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2783	{
2784	GLint activeTexture = 0;
2785	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2786	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2787
2788	/* Must bind texture to the current context in order to change it. */
2789	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2790	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2791
2792	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2793
2794	/* Set row length and alignment of the input data. */
2795	VMSVGAPACKPARAMS SavedParams;
2796	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2797
2798	if (texImageTarget == GL_TEXTURE_3D)
2799	{
2800	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2801	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2802	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2803	{
2804	pState->ext.glCompressedTexSubImage3D(texImageTarget,
2805	uHostMipmap,
2806	pBox->x,
2807	pBox->y,
2808	pBox->z,
2809	pBox->w,
2810	pBox->h,
2811	pBox->d,
2812	pSurface->formatGL,
2813	pSurface->typeGL,
2814	pDoubleBuffer);
2815	}
2816	else
2817	{
2818	pState->ext.glTexSubImage3D(texImageTarget,
2819	uHostMipmap,
2820	u32HostBlockX,
2821	u32HostBlockY,
2822	pBox->z,
2823	cBlocksX,
2824	cBlocksY,
2825	pBox->d,
2826	pSurface->formatGL,
2827	pSurface->typeGL,
2828	pDoubleBuffer);
2829	}
2830	}
2831	else
2832	{
2833	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2834	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2835	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2836	{
2837	pState->ext.glCompressedTexSubImage2D(texImageTarget,
2838	uHostMipmap,
2839	pBox->x,
2840	pBox->y,
2841	pBox->w,
2842	pBox->h,
2843	pSurface->internalFormatGL,
2844	cbSurfacePitch * cBlocksY,
2845	pDoubleBuffer);
2846	}
2847	else
2848	{
2849	glTexSubImage2D(texImageTarget,
2850	uHostMipmap,
2851	u32HostBlockX,
2852	u32HostBlockY,
2853	cBlocksX,
2854	cBlocksY,
2855	pSurface->formatGL,
2856	pSurface->typeGL,
2857	pDoubleBuffer);
2858	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2859
2860	if (pSurface->fEmulated)
2861	{
2862	/* Convert the texture to the actual texture if necessary */
2863	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
2864	}
2865	}
2866	}
2867	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2868
2869	/* Restore old values. */
2870	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2871
2872	/* Restore the old active texture. */
2873	glBindTexture(pSurface->targetGL, activeTexture);
2874	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2875	}
2876
2877	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2878
2879	/* Free the double buffer. */
2880	RTMemFree(pDoubleBuffer);
2881	break;
2882	}
2883
2884	case VMSVGA3D_OGLRESTYPE_BUFFER:
2885	{
2886	/* Buffers are uncompressed. */
2887	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2888
2889	/* Caller already clipped pBox and buffers are 1-dimensional. */
2890	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2891
2892	VMSVGA3D_CLEAR_GL_ERRORS();
2893	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2894	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2895	{
2896	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2897	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2898	if (RT_LIKELY(pbData != NULL))
2899	{
2900	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2901	GLint cbStrictBufSize;
2902	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2903	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2904	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2905	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2906	#endif
2907	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2908	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2909	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2910	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2911
2912	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2913	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
2914
2915	rc = vmsvgaR3GmrTransfer(pThis,
2916	transfer,
2917	pbData,
2918	pMipLevel->cbSurface,
2919	offHst,
2920	pMipLevel->cbSurfacePitch,
2921	GuestPtr,
2922	pBox->srcx * pSurface->cbBlock,
2923	cbGuestPitch,
2924	cbWidth,
2925	pBox->h);
2926	AssertRC(rc);
2927
2928	Log4(("Buffer updated at [0x%x;0x%x):\n%.Rhxd\n", offHst, offHst + cbWidth, cbWidth, (uint8_t )pbData + offHst));
2929
2930	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2931	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2932	}
2933	else
2934	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2935	}
2936	else
2937	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2938	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2939	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2940	break;
2941	}
2942
2943	default:
2944	AssertFailed();
2945	break;
2946	}
2947
2948	return rc;
2949	}
2950
2951	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2952	{
2953	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2954	PVMSVGA3DSURFACE pSurface;
2955	int rc = VINF_SUCCESS;
2956	PVMSVGA3DCONTEXT pContext;
2957	uint32_t cid;
2958	GLint activeTexture = 0;
2959
2960	AssertReturn(pState, VERR_NO_MEMORY);
2961
2962	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2963	AssertRCReturn(rc, rc);
2964
2965	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2966	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2967	pSurface->autogenFilter = filter;
2968
2969	LogFunc(("sid=%u filter=%d\n", sid, filter));
2970
2971	cid = SVGA3D_INVALID_ID;
2972	pContext = &pState->SharedCtx;
2973	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2974
2975	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2976	{
2977	/* Unknown surface type; turn it into a texture. */
2978	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2979	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2980	AssertRCReturn(rc, rc);
2981	}
2982	else
2983	{
2984	/** @todo new filter */
2985	AssertFailed();
2986	}
2987
2988	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2989	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2990
2991	/* Must bind texture to the current context in order to change it. */
2992	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2993	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2994
2995	/* Generate the mip maps. */
2996	pState->ext.glGenerateMipmap(pSurface->targetGL);
2997	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2998
2999	/* Restore the old texture. */
3000	glBindTexture(pSurface->targetGL, activeTexture);
3001	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3002
3003	return VINF_SUCCESS;
3004	}
3005
3006
3007	#ifdef RT_OS_LINUX
3008	/**
3009	* X11 event handling thread.
3010	*
3011	* @returns VINF_SUCCESS (ignored)
3012	* @param hThreadSelf thread handle
3013	* @param pvUser pointer to pState structure
3014	*/
3015	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3016	{
3017	RT_NOREF(hThreadSelf);
3018	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3019	while (!pState->bTerminate)
3020	{
3021	while (XPending(pState->display) > 0)
3022	{
3023	XEvent event;
3024	XNextEvent(pState->display, &event);
3025
3026	switch (event.type)
3027	{
3028	default:
3029	break;
3030	}
3031	}
3032	/* sleep for 16ms to not burn too many cycles */
3033	RTThreadSleep(16);
3034	}
3035	return VINF_SUCCESS;
3036	}
3037	#endif // RT_OS_LINUX
3038
3039
3040	/**
3041	* Create a new 3d context
3042	*
3043	* @returns VBox status code.
3044	* @param pThis VGA device instance data.
3045	* @param cid Context id
3046	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3047	*/
3048	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3049	{
3050	int rc;
3051	PVMSVGA3DCONTEXT pContext;
3052	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3053
3054	AssertReturn(pState, VERR_NO_MEMORY);
3055	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3056	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3057	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3058	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3059	#endif
3060
3061	Log(("vmsvga3dContextDefine id %x\n", cid));
3062
3063	if (cid == VMSVGA3D_SHARED_CTX_ID)
3064	pContext = &pState->SharedCtx;
3065	else
3066	{
3067	if (cid >= pState->cContexts)
3068	{
3069	/* Grow the array. */
3070	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3071	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3072	AssertReturn(pvNew, VERR_NO_MEMORY);
3073	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3074	while (pState->cContexts < cNew)
3075	{
3076	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3077	AssertReturn(pContext, VERR_NO_MEMORY);
3078	pContext->id = SVGA3D_INVALID_ID;
3079	pState->papContexts[pState->cContexts++] = pContext;
3080	}
3081	}
3082	/* If one already exists with this id, then destroy it now. */
3083	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3084	vmsvga3dContextDestroy(pThis, cid);
3085
3086	pContext = pState->papContexts[cid];
3087	}
3088
3089	/*
3090	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3091	*/
3092	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3093	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3094	{
3095	pSharedCtx = &pState->SharedCtx;
3096	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3097	{
3098	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3099	AssertLogRelRCReturn(rc, rc);
3100
3101	/* Create resources which use the shared context. */
3102	vmsvga3dOnSharedContextDefine(pState);
3103	}
3104	}
3105
3106	/*
3107	* Initialize the context.
3108	*/
3109	memset(pContext, 0, sizeof(*pContext));
3110	pContext->id = cid;
3111	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3112	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3113
3114	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3115	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3116	pContext->idFramebuffer = OPENGL_INVALID_ID;
3117	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3118	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3119
3120	rc = ShaderContextCreate(&pContext->pShaderContext);
3121	AssertRCReturn(rc, rc);
3122
3123	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3124	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3125
3126	#ifdef RT_OS_WINDOWS
3127	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3128	* to present the rendered image. Rendered images from the guest will be copied to
3129	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3130	* system memory in the guest VRAM.
3131	*/
3132	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3133	AssertRCReturn(rc, rc);
3134
3135	pContext->hdc = GetDC(pContext->hwnd);
3136	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3137
3138	PIXELFORMATDESCRIPTOR pfd = {
3139	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3140	1, /* version number */
3141	PFD_DRAW_TO_WINDOW \| /* support window */
3142	PFD_SUPPORT_OPENGL, /* support OpenGL */
3143	PFD_TYPE_RGBA, /* RGBA type */
3144	24, /* 24-bit color depth */
3145	0, 0, 0, 0, 0, 0, /* color bits ignored */
3146	8, /* alpha buffer */
3147	0, /* shift bit ignored */
3148	0, /* no accumulation buffer */
3149	0, 0, 0, 0, /* accum bits ignored */
3150	16, /* set depth buffer */
3151	16, /* set stencil buffer */
3152	0, /* no auxiliary buffer */
3153	PFD_MAIN_PLANE, /* main layer */
3154	0, /* reserved */
3155	0, 0, 0 /* layer masks ignored */
3156	};
3157	int pixelFormat;
3158	BOOL ret;
3159
3160	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3161	/** @todo is this really necessary?? */
3162	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3163	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3164
3165	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3166	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3167
3168	pContext->hglrc = wglCreateContext(pContext->hdc);
3169	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3170
3171	if (pSharedCtx)
3172	{
3173	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3174	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3175	}
3176
3177	#elif defined(RT_OS_DARWIN)
3178	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3179
3180	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3181	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3182	NULL,
3183	4, 4,
3184	pShareContext, pContext->fOtherProfile);
3185
3186	#else
3187	if (pState->display == NULL)
3188	{
3189	/* get an X display and make sure we have glX 1.3 */
3190	pState->display = XOpenDisplay(0);
3191	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3192	int glxMajor, glxMinor;
3193	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3194	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3195	/* start our X event handling thread */
3196	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3197	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3198	}
3199
3200	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3201	/* Create a small 4x4 window required for GL context. */
3202	int attrib[] =
3203	{
3204	GLX_RGBA,
3205	GLX_RED_SIZE, 1,
3206	GLX_GREEN_SIZE, 1,
3207	GLX_BLUE_SIZE, 1,
3208	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3209	GLX_DOUBLEBUFFER,
3210	None
3211	};
3212	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3213	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3214	XSetWindowAttributes swa;
3215	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3216	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3217	swa.border_pixel = 0;
3218	swa.background_pixel = 0;
3219	swa.event_mask = StructureNotifyMask;
3220	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3221	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3222	0, 0, 4, 4,
3223	0, vi->depth, InputOutput,
3224	vi->visual, flags, &swa);
3225	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3226
3227	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3228
3229	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3230	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3231	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3232	#endif
3233
3234	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3235
3236	/* NULL during the first PowerOn call. */
3237	if (pState->ext.glGenFramebuffers)
3238	{
3239	/* Create a framebuffer object for this context. */
3240	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3241	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3242
3243	/* Bind the object to the framebuffer target. */
3244	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3246
3247	/* Create read and draw framebuffer objects for this context. */
3248	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3249	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3250
3251	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3253
3254	}
3255	#if 0
3256	/** @todo move to shader lib!!! */
3257	/* Clear the screen */
3258	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3259
3260	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3261	glClearIndex(0);
3262	glClearDepth(1);
3263	glClearStencil(0xffff);
3264	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3265	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3266	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3267	if (pState->ext.glProvokingVertex)
3268	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3269	/** @todo move to shader lib!!! */
3270	#endif
3271	return VINF_SUCCESS;
3272	}
3273
3274
3275	/**
3276	* Create a new 3d context
3277	*
3278	* @returns VBox status code.
3279	* @param pThis VGA device instance data.
3280	* @param cid Context id
3281	*/
3282	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3283	{
3284	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3285	}
3286
3287	/**
3288	* Destroys a 3d context.
3289	*
3290	* @returns VBox status code.
3291	* @param pThis VGA device instance data.
3292	* @param pContext The context to destroy.
3293	* @param cid Context id
3294	*/
3295	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3296	{
3297	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3298	AssertReturn(pState, VERR_NO_MEMORY);
3299	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3300	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3301	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3302
3303	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3304
3305	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
3306	{
3307	/* Delete resources which use the shared context. */
3308	vmsvga3dOnSharedContextDestroy(pState);
3309	}
3310
3311	/* Destroy all leftover pixel shaders. */
3312	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3313	{
3314	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3315	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3316	}
3317	if (pContext->paPixelShader)
3318	RTMemFree(pContext->paPixelShader);
3319
3320	/* Destroy all leftover vertex shaders. */
3321	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3322	{
3323	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3324	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3325	}
3326	if (pContext->paVertexShader)
3327	RTMemFree(pContext->paVertexShader);
3328
3329	if (pContext->state.paVertexShaderConst)
3330	RTMemFree(pContext->state.paVertexShaderConst);
3331	if (pContext->state.paPixelShaderConst)
3332	RTMemFree(pContext->state.paPixelShaderConst);
3333
3334	if (pContext->pShaderContext)
3335	{
3336	int rc = ShaderContextDestroy(pContext->pShaderContext);
3337	AssertRC(rc);
3338	}
3339
3340	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3341	{
3342	/* Unbind the object from the framebuffer target. */
3343	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3344	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3345	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3346	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3347
3348	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3349	{
3350	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3351	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3352	}
3353	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3354	{
3355	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3357	}
3358	}
3359
3360	vmsvga3dOcclusionQueryDelete(pState, pContext);
3361
3362	#ifdef RT_OS_WINDOWS
3363	wglMakeCurrent(pContext->hdc, NULL);
3364	wglDeleteContext(pContext->hglrc);
3365	ReleaseDC(pContext->hwnd, pContext->hdc);
3366
3367	/* Destroy the window we've created. */
3368	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3369	AssertRC(rc);
3370	#elif defined(RT_OS_DARWIN)
3371	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3372	#elif defined(RT_OS_LINUX)
3373	glXMakeCurrent(pState->display, None, NULL);
3374	glXDestroyContext(pState->display, pContext->glxContext);
3375	XDestroyWindow(pState->display, pContext->window);
3376	#endif
3377
3378	memset(pContext, 0, sizeof(*pContext));
3379	pContext->id = SVGA3D_INVALID_ID;
3380
3381	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3382	return VINF_SUCCESS;
3383	}
3384
3385	/**
3386	* Destroy an existing 3d context
3387	*
3388	* @returns VBox status code.
3389	* @param pThis VGA device instance data.
3390	* @param cid Context id
3391	*/
3392	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3393	{
3394	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3395	AssertReturn(pState, VERR_WRONG_ORDER);
3396
3397	/*
3398	* Resolve the context and hand it to the common worker function.
3399	*/
3400	if ( cid < pState->cContexts
3401	&& pState->papContexts[cid]->id == cid)
3402	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3403
3404	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3405	return VINF_SUCCESS;
3406	}
3407
3408	/**
3409	* Worker for vmsvga3dChangeMode that resizes a context.
3410	*
3411	* @param pThis The VGA device instance data.
3412	* @param pState The VMSVGA3d state.
3413	* @param pContext The context.
3414	*/
3415	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3416	{
3417	RT_NOREF3(pThis, pState, pContext);
3418	/* Do nothing. The window is not used for presenting. */
3419	}
3420
3421	/* Handle resize */
3422	int vmsvga3dChangeMode(PVGASTATE pThis)
3423	{
3424	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3425	AssertReturn(pState, VERR_NO_MEMORY);
3426
3427	/* Resize the shared context too. */
3428	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3429	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3430
3431	/* Resize all active contexts. */
3432	for (uint32_t i = 0; i < pState->cContexts; i++)
3433	{
3434	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3435	if (pContext->id != SVGA3D_INVALID_ID)
3436	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3437	}
3438
3439	return VINF_SUCCESS;
3440	}
3441
3442
3443	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3444	{
3445	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3446	AssertReturn(pState, VERR_NO_MEMORY);
3447	bool fModelViewChanged = false;
3448
3449	Log(("vmsvga3dSetTransform cid=%u %s\n", cid, vmsvgaTransformToString(type)));
3450
3451	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
3452
3453	PVMSVGA3DCONTEXT pContext;
3454	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3455	AssertRCReturn(rc, rc);
3456
3457	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3458
3459	/* Save this matrix for vm state save/restore. */
3460	pContext->state.aTransformState[type].fValid = true;
3461	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3462	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3463
3464	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)));
3465	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)));
3466	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)));
3467	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)));
3468
3469	switch (type)
3470	{
3471	case SVGA3D_TRANSFORM_VIEW:
3472	/* View * World = Model View */
3473	glMatrixMode(GL_MODELVIEW);
3474	glLoadMatrixf(matrix);
3475	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3476	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3478	fModelViewChanged = true;
3479	break;
3480
3481	case SVGA3D_TRANSFORM_PROJECTION:
3482	{
3483	rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3484	AssertRCReturn(rc, rc);
3485	break;
3486	}
3487
3488	case SVGA3D_TRANSFORM_TEXTURE0:
3489	glMatrixMode(GL_TEXTURE);
3490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3491	glLoadMatrixf(matrix);
3492	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3493	break;
3494
3495	case SVGA3D_TRANSFORM_TEXTURE1:
3496	case SVGA3D_TRANSFORM_TEXTURE2:
3497	case SVGA3D_TRANSFORM_TEXTURE3:
3498	case SVGA3D_TRANSFORM_TEXTURE4:
3499	case SVGA3D_TRANSFORM_TEXTURE5:
3500	case SVGA3D_TRANSFORM_TEXTURE6:
3501	case SVGA3D_TRANSFORM_TEXTURE7:
3502	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3503	return VERR_INVALID_PARAMETER;
3504
3505	case SVGA3D_TRANSFORM_WORLD:
3506	/* View * World = Model View */
3507	glMatrixMode(GL_MODELVIEW);
3508	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3509	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3510	else
3511	glLoadIdentity();
3512	glMultMatrixf(matrix);
3513	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3514	fModelViewChanged = true;
3515	break;
3516
3517	case SVGA3D_TRANSFORM_WORLD1:
3518	case SVGA3D_TRANSFORM_WORLD2:
3519	case SVGA3D_TRANSFORM_WORLD3:
3520	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3521	return VERR_INVALID_PARAMETER;
3522
3523	default:
3524	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3525	return VERR_INVALID_PARAMETER;
3526	}
3527
3528	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3529	if (fModelViewChanged)
3530	{
3531	/* Reprogram the clip planes. */
3532	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3533	{
3534	if (pContext->state.aClipPlane[j].fValid == true)
3535	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3536	}
3537
3538	/* Reprogram the light data. */
3539	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3540	{
3541	if (pContext->state.aLightData[j].fValidData == true)
3542	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3543	}
3544	}
3545
3546	return VINF_SUCCESS;
3547	}
3548
3549	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3550	{
3551	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3552	AssertReturn(pState, VERR_NO_MEMORY);
3553
3554	Log(("vmsvga3dSetZRange cid=%u min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3555
3556	PVMSVGA3DCONTEXT pContext;
3557	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3558	AssertRCReturn(rc, rc);
3559
3560	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3561
3562	pContext->state.zRange = zRange;
3563	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3564
3565	if (zRange.min < -1.0)
3566	zRange.min = -1.0;
3567	if (zRange.max > 1.0)
3568	zRange.max = 1.0;
3569
3570	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3571	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3572	return VINF_SUCCESS;
3573	}
3574
3575	/**
3576	* Convert SVGA blend op value to its OpenGL equivalent
3577	*/
3578	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3579	{
3580	switch (blendOp)
3581	{
3582	case SVGA3D_BLENDOP_ZERO:
3583	return GL_ZERO;
3584	case SVGA3D_BLENDOP_ONE:
3585	return GL_ONE;
3586	case SVGA3D_BLENDOP_SRCCOLOR:
3587	return GL_SRC_COLOR;
3588	case SVGA3D_BLENDOP_INVSRCCOLOR:
3589	return GL_ONE_MINUS_SRC_COLOR;
3590	case SVGA3D_BLENDOP_SRCALPHA:
3591	return GL_SRC_ALPHA;
3592	case SVGA3D_BLENDOP_INVSRCALPHA:
3593	return GL_ONE_MINUS_SRC_ALPHA;
3594	case SVGA3D_BLENDOP_DESTALPHA:
3595	return GL_DST_ALPHA;
3596	case SVGA3D_BLENDOP_INVDESTALPHA:
3597	return GL_ONE_MINUS_DST_ALPHA;
3598	case SVGA3D_BLENDOP_DESTCOLOR:
3599	return GL_DST_COLOR;
3600	case SVGA3D_BLENDOP_INVDESTCOLOR:
3601	return GL_ONE_MINUS_DST_COLOR;
3602	case SVGA3D_BLENDOP_SRCALPHASAT:
3603	return GL_SRC_ALPHA_SATURATE;
3604	case SVGA3D_BLENDOP_BLENDFACTOR:
3605	return GL_CONSTANT_COLOR;
3606	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3607	return GL_ONE_MINUS_CONSTANT_COLOR;
3608	default:
3609	AssertFailed();
3610	return GL_ONE;
3611	}
3612	}
3613
3614	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3615	{
3616	switch (blendEq)
3617	{
3618	case SVGA3D_BLENDEQ_ADD:
3619	return GL_FUNC_ADD;
3620	case SVGA3D_BLENDEQ_SUBTRACT:
3621	return GL_FUNC_SUBTRACT;
3622	case SVGA3D_BLENDEQ_REVSUBTRACT:
3623	return GL_FUNC_REVERSE_SUBTRACT;
3624	case SVGA3D_BLENDEQ_MINIMUM:
3625	return GL_MIN;
3626	case SVGA3D_BLENDEQ_MAXIMUM:
3627	return GL_MAX;
3628	default:
3629	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3630	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3631	return GL_FUNC_ADD;
3632	}
3633	}
3634
3635	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3636	{
3637	switch (cmpFunc)
3638	{
3639	case SVGA3D_CMP_NEVER:
3640	return GL_NEVER;
3641	case SVGA3D_CMP_LESS:
3642	return GL_LESS;
3643	case SVGA3D_CMP_EQUAL:
3644	return GL_EQUAL;
3645	case SVGA3D_CMP_LESSEQUAL:
3646	return GL_LEQUAL;
3647	case SVGA3D_CMP_GREATER:
3648	return GL_GREATER;
3649	case SVGA3D_CMP_NOTEQUAL:
3650	return GL_NOTEQUAL;
3651	case SVGA3D_CMP_GREATEREQUAL:
3652	return GL_GEQUAL;
3653	case SVGA3D_CMP_ALWAYS:
3654	return GL_ALWAYS;
3655	default:
3656	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3657	return GL_LESS;
3658	}
3659	}
3660
3661	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3662	{
3663	switch (stencilOp)
3664	{
3665	case SVGA3D_STENCILOP_KEEP:
3666	return GL_KEEP;
3667	case SVGA3D_STENCILOP_ZERO:
3668	return GL_ZERO;
3669	case SVGA3D_STENCILOP_REPLACE:
3670	return GL_REPLACE;
3671	case SVGA3D_STENCILOP_INCRSAT:
3672	return GL_INCR_WRAP;
3673	case SVGA3D_STENCILOP_DECRSAT:
3674	return GL_DECR_WRAP;
3675	case SVGA3D_STENCILOP_INVERT:
3676	return GL_INVERT;
3677	case SVGA3D_STENCILOP_INCR:
3678	return GL_INCR;
3679	case SVGA3D_STENCILOP_DECR:
3680	return GL_DECR;
3681	default:
3682	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3683	return GL_KEEP;
3684	}
3685	}
3686
3687	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3688	{
3689	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3690	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3691	AssertReturn(pState, VERR_NO_MEMORY);
3692
3693	Log(("vmsvga3dSetRenderState cid=%u cRenderStates=%d\n", cid, cRenderStates));
3694
3695	PVMSVGA3DCONTEXT pContext;
3696	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3697	AssertRCReturn(rc, rc);
3698
3699	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3700
3701	for (unsigned i = 0; i < cRenderStates; i++)
3702	{
3703	GLenum enableCap = ~(GLenum)0;
3704	Log(("vmsvga3dSetRenderState: cid=%u state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3705	/* Save the render state for vm state saving. */
3706	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
3707	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3708
3709	switch (pRenderState[i].state)
3710	{
3711	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3712	enableCap = GL_DEPTH_TEST;
3713	val = pRenderState[i].uintValue;
3714	break;
3715
3716	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3717	glDepthMask(!!pRenderState[i].uintValue);
3718	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3719	break;
3720
3721	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3722	enableCap = GL_ALPHA_TEST;
3723	val = pRenderState[i].uintValue;
3724	break;
3725
3726	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3727	enableCap = GL_DITHER;
3728	val = pRenderState[i].uintValue;
3729	break;
3730
3731	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3732	enableCap = GL_FOG;
3733	val = pRenderState[i].uintValue;
3734	break;
3735
3736	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3737	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3738	break;
3739
3740	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3741	enableCap = GL_LIGHTING;
3742	val = pRenderState[i].uintValue;
3743	break;
3744
3745	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3746	/* not applicable */
3747	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3748	break;
3749
3750	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3751	enableCap = GL_POINT_SPRITE_ARB;
3752	val = pRenderState[i].uintValue;
3753	break;
3754
3755	case SVGA3D_RS_POINTSIZE: /* float */
3756	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3757	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3758	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3759	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3760	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3761
3762	glPointSize(pRenderState[i].floatValue);
3763	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3764	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3765	break;
3766
3767	case SVGA3D_RS_POINTSIZEMIN: /* float */
3768	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3769	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3770	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3771	break;
3772
3773	case SVGA3D_RS_POINTSIZEMAX: /* float */
3774	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3775	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3776	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3777	break;
3778
3779	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3780	case SVGA3D_RS_POINTSCALE_A: /* float */
3781	case SVGA3D_RS_POINTSCALE_B: /* float */
3782	case SVGA3D_RS_POINTSCALE_C: /* float */
3783	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3784	break;
3785
3786	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3787	{
3788	GLfloat color[4]; /* red, green, blue, alpha */
3789
3790	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3791
3792	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3794	break;
3795	}
3796
3797	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3798	{
3799	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3800	for (uint32_t j = 0; j <= 5; j++)
3801	{
3802	if (pRenderState[i].uintValue & RT_BIT(j))
3803	glEnable(GL_CLIP_PLANE0 + j);
3804	else
3805	glDisable(GL_CLIP_PLANE0 + j);
3806	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3807	}
3808	break;
3809	}
3810
3811	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3812	{
3813	GLfloat color[4]; /* red, green, blue, alpha */
3814
3815	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3816
3817	glFogfv(GL_FOG_COLOR, color);
3818	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3819	break;
3820	}
3821
3822	case SVGA3D_RS_FOGSTART: /* float */
3823	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3824	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3825	break;
3826
3827	case SVGA3D_RS_FOGEND: /* float */
3828	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3830	break;
3831
3832	case SVGA3D_RS_FOGDENSITY: /* float */
3833	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3834	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3835	break;
3836
3837	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3838	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3840	break;
3841
3842	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3843	{
3844	SVGA3dFogMode mode;
3845	mode.uintValue = pRenderState[i].uintValue;
3846
3847	enableCap = GL_FOG_MODE;
3848	switch (mode.s.function)
3849	{
3850	case SVGA3D_FOGFUNC_EXP:
3851	val = GL_EXP;
3852	break;
3853	case SVGA3D_FOGFUNC_EXP2:
3854	val = GL_EXP2;
3855	break;
3856	case SVGA3D_FOGFUNC_LINEAR:
3857	val = GL_LINEAR;
3858	break;
3859	default:
3860	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3861	break;
3862	}
3863
3864	/** @todo how to switch between vertex and pixel fog modes??? */
3865	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3866	#if 0
3867	/* The fog type determines the render state. */
3868	switch (mode.s.type)
3869	{
3870	case SVGA3D_FOGTYPE_VERTEX:
3871	renderState = D3DRS_FOGVERTEXMODE;
3872	break;
3873	case SVGA3D_FOGTYPE_PIXEL:
3874	renderState = D3DRS_FOGTABLEMODE;
3875	break;
3876	default:
3877	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3878	break;
3879	}
3880	#endif
3881
3882	/* Set the fog base to depth or range. */
3883	switch (mode.s.base)
3884	{
3885	case SVGA3D_FOGBASE_DEPTHBASED:
3886	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3887	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3888	break;
3889	case SVGA3D_FOGBASE_RANGEBASED:
3890	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3891	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3892	break;
3893	default:
3894	/* ignore */
3895	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3896	break;
3897	}
3898	break;
3899	}
3900
3901	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3902	{
3903	SVGA3dFillMode mode;
3904
3905	mode.uintValue = pRenderState[i].uintValue;
3906
3907	switch (mode.s.mode)
3908	{
3909	case SVGA3D_FILLMODE_POINT:
3910	val = GL_POINT;
3911	break;
3912	case SVGA3D_FILLMODE_LINE:
3913	val = GL_LINE;
3914	break;
3915	case SVGA3D_FILLMODE_FILL:
3916	val = GL_FILL;
3917	break;
3918	default:
3919	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3920	break;
3921	}
3922	/* @note only front and back faces */
3923	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3924	glPolygonMode(GL_FRONT_AND_BACK, val);
3925	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3926	break;
3927	}
3928
3929	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3930	switch (pRenderState[i].uintValue)
3931	{
3932	case SVGA3D_SHADEMODE_FLAT:
3933	val = GL_FLAT;
3934	break;
3935
3936	case SVGA3D_SHADEMODE_SMOOTH:
3937	val = GL_SMOOTH;
3938	break;
3939
3940	default:
3941	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3942	break;
3943	}
3944
3945	glShadeModel(val);
3946	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3947	break;
3948
3949	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3950	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3951	/** @todo */
3952	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3953	/*
3954	renderState = D3DRS_LINEPATTERN;
3955	val = pRenderState[i].uintValue;
3956	*/
3957	break;
3958
3959	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3960	enableCap = GL_LINE_SMOOTH;
3961	val = pRenderState[i].uintValue;
3962	break;
3963
3964	case SVGA3D_RS_LINEWIDTH: /* float */
3965	glLineWidth(pRenderState[i].floatValue);
3966	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3967	break;
3968
3969	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3970	{
3971	/* Refresh the blending state based on the new enable setting.
3972	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3973	*/
3974	static SVGA3dRenderStateName const saRefreshState[] =
3975	{
3976	SVGA3D_RS_SRCBLEND,
3977	SVGA3D_RS_BLENDEQUATION
3978	};
3979	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3980	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3981	{
3982	renderstate[j].state = saRefreshState[j];
3983	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3984	}
3985
3986	rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3987	AssertRCReturn(rc, rc);
3988
3989	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3990	continue; /* Ignore if blend is enabled */
3991	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3992	} RT_FALL_THRU();
3993
3994	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3995	enableCap = GL_BLEND;
3996	val = pRenderState[i].uintValue;
3997	break;
3998
3999	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4000	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4001	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4002	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4003	{
4004	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4005	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4006
4007	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4008	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4009	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4010	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4011	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4012	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4013	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4014	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4015
4016	switch (pRenderState[i].state)
4017	{
4018	case SVGA3D_RS_SRCBLEND:
4019	srcRGB = blendop;
4020	break;
4021	case SVGA3D_RS_DSTBLEND:
4022	dstRGB = blendop;
4023	break;
4024	case SVGA3D_RS_SRCBLENDALPHA:
4025	srcAlpha = blendop;
4026	break;
4027	case SVGA3D_RS_DSTBLENDALPHA:
4028	dstAlpha = blendop;
4029	break;
4030	default:
4031	/* not possible; shut up gcc */
4032	AssertFailed();
4033	break;
4034	}
4035
4036	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4037	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4038	else
4039	glBlendFunc(srcRGB, dstRGB);
4040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4041	break;
4042	}
4043
4044	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4045	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4046	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4047	{
4048	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4049	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4050	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4051	}
4052	else
4053	{
4054	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4055	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4056	#else
4057	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4058	#endif
4059	}
4060	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4061	break;
4062
4063	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4064	{
4065	GLfloat red, green, blue, alpha;
4066
4067	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4068
4069	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4070	glBlendColor(red, green, blue, alpha);
4071	#else
4072	pState->ext.glBlendColor(red, green, blue, alpha);
4073	#endif
4074	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4075	break;
4076	}
4077
4078	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4079	{
4080	GLenum mode = GL_BACK; /* default for OpenGL */
4081
4082	switch (pRenderState[i].uintValue)
4083	{
4084	case SVGA3D_FACE_NONE:
4085	break;
4086	case SVGA3D_FACE_FRONT:
4087	mode = GL_FRONT;
4088	break;
4089	case SVGA3D_FACE_BACK:
4090	mode = GL_BACK;
4091	break;
4092	case SVGA3D_FACE_FRONT_BACK:
4093	mode = GL_FRONT_AND_BACK;
4094	break;
4095	default:
4096	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4097	break;
4098	}
4099	enableCap = GL_CULL_FACE;
4100	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4101	{
4102	glCullFace(mode);
4103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4104	val = 1;
4105	}
4106	else
4107	val = 0;
4108	break;
4109	}
4110
4111	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4112	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4114	break;
4115
4116	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4117	{
4118	GLclampf ref;
4119
4120	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4122	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4123	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4124	break;
4125	}
4126
4127	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4128	{
4129	GLint func;
4130
4131	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4132	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4133	glAlphaFunc(func, pRenderState[i].floatValue);
4134	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4135	break;
4136	}
4137
4138	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4139	{
4140	/* Refresh the stencil state based on the new enable setting.
4141	* This will take existing states and set them using either glStencil or glStencil*Separate.
4142	*/
4143	static SVGA3dRenderStateName const saRefreshState[] =
4144	{
4145	SVGA3D_RS_STENCILFUNC,
4146	SVGA3D_RS_STENCILFAIL,
4147	SVGA3D_RS_CCWSTENCILFUNC,
4148	SVGA3D_RS_CCWSTENCILFAIL
4149	};
4150	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4151	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4152	{
4153	renderstate[j].state = saRefreshState[j];
4154	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4155	}
4156
4157	rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4158	AssertRCReturn(rc, rc);
4159
4160	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4161	continue; /* Ignore if stencil is enabled */
4162	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4163	} RT_FALL_THRU();
4164
4165	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4166	enableCap = GL_STENCIL_TEST;
4167	val = pRenderState[i].uintValue;
4168	break;
4169
4170	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4171	case SVGA3D_RS_STENCILREF: /* uint32_t */
4172	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4173	{
4174	GLint func, ref;
4175	GLuint mask;
4176
4177	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4178	glGetIntegerv(GL_STENCIL_FUNC, &func);
4179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4180	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4181	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4182	glGetIntegerv(GL_STENCIL_REF, &ref);
4183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4184
4185	/* Update the changed value. */
4186	switch (pRenderState[i].state)
4187	{
4188	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4189	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4190	break;
4191
4192	case SVGA3D_RS_STENCILREF: /* uint32_t */
4193	ref = pRenderState[i].uintValue;
4194	break;
4195
4196	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4197	mask = pRenderState[i].uintValue;
4198	break;
4199
4200	default:
4201	/* not possible; shut up gcc */
4202	AssertFailed();
4203	break;
4204	}
4205
4206	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4207	{
4208	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4209	}
4210	else
4211	{
4212	glStencilFunc(func, ref, mask);
4213	}
4214	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4215	break;
4216	}
4217
4218	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4219	glStencilMask(pRenderState[i].uintValue);
4220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4221	break;
4222
4223	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4224	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4225	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4226	{
4227	GLint sfail, dpfail, dppass;
4228	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4229
4230	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4231	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4232	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4233	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4234	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4235	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4236
4237	switch (pRenderState[i].state)
4238	{
4239	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4240	sfail = stencilop;
4241	break;
4242	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4243	dpfail = stencilop;
4244	break;
4245	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4246	dppass = stencilop;
4247	break;
4248	default:
4249	/* not possible; shut up gcc */
4250	AssertFailed();
4251	break;
4252	}
4253	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4254	{
4255	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4256	}
4257	else
4258	{
4259	glStencilOp(sfail, dpfail, dppass);
4260	}
4261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4262	break;
4263	}
4264
4265	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4266	{
4267	GLint ref;
4268	GLuint mask;
4269	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4270
4271	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4272	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4273	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4274	glGetIntegerv(GL_STENCIL_REF, &ref);
4275	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4276
4277	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4278	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4279	break;
4280	}
4281
4282	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4283	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4284	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4285	{
4286	GLint sfail, dpfail, dppass;
4287	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4288
4289	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4290	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4291	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4292	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4293	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4294	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4295
4296	switch (pRenderState[i].state)
4297	{
4298	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4299	sfail = stencilop;
4300	break;
4301	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4302	dpfail = stencilop;
4303	break;
4304	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4305	dppass = stencilop;
4306	break;
4307	default:
4308	/* not possible; shut up gcc */
4309	AssertFailed();
4310	break;
4311	}
4312	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4313	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4314	break;
4315	}
4316
4317	case SVGA3D_RS_ZBIAS: /* float */
4318	/** @todo unknown meaning; depth bias is not identical
4319	renderState = D3DRS_DEPTHBIAS;
4320	val = pRenderState[i].uintValue;
4321	*/
4322	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4323	break;
4324
4325	case SVGA3D_RS_DEPTHBIAS: /* float */
4326	{
4327	GLfloat factor;
4328
4329	/** @todo not sure if the d3d & ogl definitions are identical. */
4330
4331	/* Do not change the factor part. */
4332	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4333	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4334
4335	glPolygonOffset(factor, pRenderState[i].floatValue);
4336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4337	break;
4338	}
4339
4340	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4341	{
4342	GLfloat units;
4343
4344	/** @todo not sure if the d3d & ogl definitions are identical. */
4345
4346	/* Do not change the factor part. */
4347	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4348	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4349
4350	glPolygonOffset(pRenderState[i].floatValue, units);
4351	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4352	break;
4353	}
4354
4355	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4356	{
4357	GLboolean red, green, blue, alpha;
4358	SVGA3dColorMask mask;
4359
4360	mask.uintValue = pRenderState[i].uintValue;
4361
4362	red = mask.s.red;
4363	green = mask.s.green;
4364	blue = mask.s.blue;
4365	alpha = mask.s.alpha;
4366
4367	glColorMask(red, green, blue, alpha);
4368	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4369	break;
4370	}
4371
4372	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4373	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4374	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4375	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4376	break;
4377
4378	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4379	enableCap = GL_SCISSOR_TEST;
4380	val = pRenderState[i].uintValue;
4381	break;
4382
4383	#if 0
4384	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4385	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4386	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4387	val = pRenderState[i].uintValue;
4388	break;
4389
4390	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4391	renderState = D3DRS_SPECULARMATERIALSOURCE;
4392	val = pRenderState[i].uintValue;
4393	break;
4394
4395	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4396	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4397	val = pRenderState[i].uintValue;
4398	break;
4399
4400	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4401	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4402	val = pRenderState[i].uintValue;
4403	break;
4404	#endif
4405
4406	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4407	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4408	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4409	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4410	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4411	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4412	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4413	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4414	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4415	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4416	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4417	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4418	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4419	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4420	break;
4421
4422	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4423	case SVGA3D_RS_TWEENFACTOR: /* float */
4424	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4425	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4426	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4427	break;
4428
4429	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4430	enableCap = GL_MULTISAMPLE;
4431	val = pRenderState[i].uintValue;
4432	break;
4433
4434	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4435	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4436	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4437	break;
4438
4439	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4440	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4441	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4442	/*
4443	renderState = D3DRS_COORDINATETYPE;
4444	val = pRenderState[i].uintValue;
4445	*/
4446	break;
4447
4448	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4449	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4450	/* Invert the selected mode because of y-inversion (?) */
4451	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4452	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4453	break;
4454
4455	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4456	//AssertFailed();
4457	/*
4458	D3DRS_SRGBWRITEENABLE ??
4459	renderState = D3DRS_OUTPUTGAMMA;
4460	val = pRenderState[i].uintValue;
4461	*/
4462	break;
4463
4464	#if 0
4465
4466	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4467	//AssertFailed();
4468	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4469	val = pRenderState[i].uintValue;
4470	break;
4471
4472	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4473	renderState = D3DRS_TEXTUREFACTOR;
4474	val = pRenderState[i].uintValue;
4475	break;
4476
4477	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4478	renderState = D3DRS_LOCALVIEWER;
4479	val = pRenderState[i].uintValue;
4480	break;
4481
4482	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4483	AssertFailed();
4484	/*
4485	renderState = D3DRS_ZVISIBLE;
4486	val = pRenderState[i].uintValue;
4487	*/
4488	break;
4489
4490	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4491	renderState = D3DRS_CLIPPING;
4492	val = pRenderState[i].uintValue;
4493	break;
4494
4495	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4496	glTexParameter GL_TEXTURE_WRAP_S
4497	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4498	renderState = D3DRS_WRAP0;
4499	val = pRenderState[i].uintValue;
4500	break;
4501
4502	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4503	glTexParameter GL_TEXTURE_WRAP_T
4504	renderState = D3DRS_WRAP1;
4505	val = pRenderState[i].uintValue;
4506	break;
4507
4508	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4509	glTexParameter GL_TEXTURE_WRAP_R
4510	renderState = D3DRS_WRAP2;
4511	val = pRenderState[i].uintValue;
4512	break;
4513
4514
4515	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4516	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4517	val = pRenderState[i].uintValue;
4518	break;
4519
4520
4521	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4522	renderState = D3DRS_BLENDOPALPHA;
4523	val = pRenderState[i].uintValue;
4524	break;
4525
4526	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4527	AssertFailed();
4528	/*
4529	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4530	val = pRenderState[i].uintValue;
4531	*/
4532	break;
4533
4534	#endif
4535	default:
4536	AssertFailed();
4537	break;
4538	}
4539
4540	if (enableCap != ~(GLenum)0)
4541	{
4542	if (val)
4543	glEnable(enableCap);
4544	else
4545	glDisable(enableCap);
4546	}
4547	}
4548
4549	return VINF_SUCCESS;
4550	}
4551
4552	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4553	{
4554	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4555
4556	AssertReturn(pState, VERR_NO_MEMORY);
4557	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4558
4559	LogFunc(("cid=%u type=%x sid=%u\n", cid, type, target.sid));
4560
4561	PVMSVGA3DCONTEXT pContext;
4562	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4563	AssertRCReturn(rc, rc);
4564
4565	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4566
4567	/* Save for vm state save/restore. */
4568	pContext->state.aRenderTargets[type] = target.sid;
4569
4570	if (target.sid == SVGA3D_INVALID_ID)
4571	{
4572	/* Disable render target. */
4573	switch (type)
4574	{
4575	case SVGA3D_RT_DEPTH:
4576	case SVGA3D_RT_STENCIL:
4577	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4578	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4579	break;
4580
4581	case SVGA3D_RT_COLOR0:
4582	case SVGA3D_RT_COLOR1:
4583	case SVGA3D_RT_COLOR2:
4584	case SVGA3D_RT_COLOR3:
4585	case SVGA3D_RT_COLOR4:
4586	case SVGA3D_RT_COLOR5:
4587	case SVGA3D_RT_COLOR6:
4588	case SVGA3D_RT_COLOR7:
4589	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4590	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4591	break;
4592
4593	default:
4594	AssertFailedReturn(VERR_INVALID_PARAMETER);
4595	}
4596	return VINF_SUCCESS;
4597	}
4598
4599	PVMSVGA3DSURFACE pRenderTarget;
4600	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
4601	AssertRCReturn(rc, rc);
4602
4603	switch (type)
4604	{
4605	case SVGA3D_RT_DEPTH:
4606	case SVGA3D_RT_STENCIL:
4607	#if 1
4608	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4609	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4610	{
4611	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4612	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4613	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4614	AssertRCReturn(rc, rc);
4615	}
4616
4617	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4618	Assert(!pRenderTarget->fDirty);
4619
4620	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4621
4622	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4623	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4624	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4625	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4626	#else
4627	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4628	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4629	{
4630	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4631	pContext = &pState->SharedCtx;
4632	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4633
4634	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4635	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4636	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
4637
4638	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4639	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4640
4641	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4642	pRenderTarget->internalFormatGL,
4643	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4644	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4645	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4646
4647	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4648	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4649
4650	pContext = pState->papContexts[cid];
4651	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4652	pRenderTarget->idWeakContextAssociation = cid;
4653	}
4654
4655	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4656	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4657	Assert(!pRenderTarget->fDirty);
4658	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4659
4660	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4661
4662	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4663	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4664	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4666	#endif
4667	break;
4668
4669	case SVGA3D_RT_COLOR0:
4670	case SVGA3D_RT_COLOR1:
4671	case SVGA3D_RT_COLOR2:
4672	case SVGA3D_RT_COLOR3:
4673	case SVGA3D_RT_COLOR4:
4674	case SVGA3D_RT_COLOR5:
4675	case SVGA3D_RT_COLOR6:
4676	case SVGA3D_RT_COLOR7:
4677	{
4678	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4679	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4680	{
4681	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));
4682	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4683	AssertRCReturn(rc, rc);
4684	}
4685
4686	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4687	Assert(!pRenderTarget->fDirty);
4688
4689	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4690
4691	GLenum textarget;
4692	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4693	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4694	else
4695	textarget = GL_TEXTURE_2D;
4696	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4697	textarget, pRenderTarget->oglId.texture, target.mipmap);
4698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4699
4700	#ifdef DEBUG
4701	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4702	if (status != GL_FRAMEBUFFER_COMPLETE)
4703	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4704	#endif
4705	/** @todo use glDrawBuffers too? */
4706	break;
4707	}
4708
4709	default:
4710	AssertFailedReturn(VERR_INVALID_PARAMETER);
4711	}
4712
4713	return VINF_SUCCESS;
4714	}
4715
4716	#if 0
4717	/**
4718	* Convert SVGA texture combiner value to its D3D equivalent
4719	*/
4720	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4721	{
4722	switch (value)
4723	{
4724	case SVGA3D_TC_DISABLE:
4725	return D3DTOP_DISABLE;
4726	case SVGA3D_TC_SELECTARG1:
4727	return D3DTOP_SELECTARG1;
4728	case SVGA3D_TC_SELECTARG2:
4729	return D3DTOP_SELECTARG2;
4730	case SVGA3D_TC_MODULATE:
4731	return D3DTOP_MODULATE;
4732	case SVGA3D_TC_ADD:
4733	return D3DTOP_ADD;
4734	case SVGA3D_TC_ADDSIGNED:
4735	return D3DTOP_ADDSIGNED;
4736	case SVGA3D_TC_SUBTRACT:
4737	return D3DTOP_SUBTRACT;
4738	case SVGA3D_TC_BLENDTEXTUREALPHA:
4739	return D3DTOP_BLENDTEXTUREALPHA;
4740	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4741	return D3DTOP_BLENDDIFFUSEALPHA;
4742	case SVGA3D_TC_BLENDCURRENTALPHA:
4743	return D3DTOP_BLENDCURRENTALPHA;
4744	case SVGA3D_TC_BLENDFACTORALPHA:
4745	return D3DTOP_BLENDFACTORALPHA;
4746	case SVGA3D_TC_MODULATE2X:
4747	return D3DTOP_MODULATE2X;
4748	case SVGA3D_TC_MODULATE4X:
4749	return D3DTOP_MODULATE4X;
4750	case SVGA3D_TC_DSDT:
4751	AssertFailed(); /** @todo ??? */
4752	return D3DTOP_DISABLE;
4753	case SVGA3D_TC_DOTPRODUCT3:
4754	return D3DTOP_DOTPRODUCT3;
4755	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4756	return D3DTOP_BLENDTEXTUREALPHAPM;
4757	case SVGA3D_TC_ADDSIGNED2X:
4758	return D3DTOP_ADDSIGNED2X;
4759	case SVGA3D_TC_ADDSMOOTH:
4760	return D3DTOP_ADDSMOOTH;
4761	case SVGA3D_TC_PREMODULATE:
4762	return D3DTOP_PREMODULATE;
4763	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4764	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4765	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4766	return D3DTOP_MODULATECOLOR_ADDALPHA;
4767	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4768	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4769	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4770	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4771	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4772	return D3DTOP_BUMPENVMAPLUMINANCE;
4773	case SVGA3D_TC_MULTIPLYADD:
4774	return D3DTOP_MULTIPLYADD;
4775	case SVGA3D_TC_LERP:
4776	return D3DTOP_LERP;
4777	default:
4778	AssertFailed();
4779	return D3DTOP_DISABLE;
4780	}
4781	}
4782
4783	/**
4784	* Convert SVGA texture arg data value to its D3D equivalent
4785	*/
4786	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4787	{
4788	switch (value)
4789	{
4790	case SVGA3D_TA_CONSTANT:
4791	return D3DTA_CONSTANT;
4792	case SVGA3D_TA_PREVIOUS:
4793	return D3DTA_CURRENT; /* current = previous */
4794	case SVGA3D_TA_DIFFUSE:
4795	return D3DTA_DIFFUSE;
4796	case SVGA3D_TA_TEXTURE:
4797	return D3DTA_TEXTURE;
4798	case SVGA3D_TA_SPECULAR:
4799	return D3DTA_SPECULAR;
4800	default:
4801	AssertFailed();
4802	return 0;
4803	}
4804	}
4805
4806	/**
4807	* Convert SVGA texture transform flag value to its D3D equivalent
4808	*/
4809	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4810	{
4811	switch (value)
4812	{
4813	case SVGA3D_TEX_TRANSFORM_OFF:
4814	return D3DTTFF_DISABLE;
4815	case SVGA3D_TEX_TRANSFORM_S:
4816	return D3DTTFF_COUNT1; /** @todo correct? */
4817	case SVGA3D_TEX_TRANSFORM_T:
4818	return D3DTTFF_COUNT2; /** @todo correct? */
4819	case SVGA3D_TEX_TRANSFORM_R:
4820	return D3DTTFF_COUNT3; /** @todo correct? */
4821	case SVGA3D_TEX_TRANSFORM_Q:
4822	return D3DTTFF_COUNT4; /** @todo correct? */
4823	case SVGA3D_TEX_PROJECTED:
4824	return D3DTTFF_PROJECTED;
4825	default:
4826	AssertFailed();
4827	return 0;
4828	}
4829	}
4830	#endif
4831
4832	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4833	{
4834	switch (value)
4835	{
4836	case SVGA3D_TEX_ADDRESS_WRAP:
4837	return GL_REPEAT;
4838	case SVGA3D_TEX_ADDRESS_MIRROR:
4839	return GL_MIRRORED_REPEAT;
4840	case SVGA3D_TEX_ADDRESS_CLAMP:
4841	return GL_CLAMP_TO_EDGE;
4842	case SVGA3D_TEX_ADDRESS_BORDER:
4843	return GL_CLAMP_TO_BORDER;
4844	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4845	AssertFailed();
4846	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4847
4848	case SVGA3D_TEX_ADDRESS_EDGE:
4849	case SVGA3D_TEX_ADDRESS_INVALID:
4850	default:
4851	AssertFailed();
4852	return GL_REPEAT; /* default */
4853	}
4854	}
4855
4856	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4857	{
4858	switch (value)
4859	{
4860	case SVGA3D_TEX_FILTER_NONE:
4861	case SVGA3D_TEX_FILTER_LINEAR:
4862	case SVGA3D_TEX_FILTER_ANISOTROPIC: /* Anisotropic filtering is controlled by SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL */
4863	return GL_LINEAR;
4864	case SVGA3D_TEX_FILTER_NEAREST:
4865	return GL_NEAREST;
4866	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4867	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4868	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4869	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4870	default:
4871	AssertFailed();
4872	return GL_LINEAR; /* default */
4873	}
4874	}
4875
4876	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4877	{
4878	/* flip the red and blue bytes */
4879	uint8_t blue = value & 0xff;
4880	uint8_t red = (value >> 16) & 0xff;
4881	return (value & 0xff00ff00) \| red \| (blue << 16);
4882	}
4883
4884	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4885	{
4886	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4887	GLenum currentStage = ~(GLenum)0;
4888	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4889	AssertReturn(pState, VERR_NO_MEMORY);
4890
4891	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4892
4893	PVMSVGA3DCONTEXT pContext;
4894	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4895	AssertRCReturn(rc, rc);
4896
4897	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4898
4899	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4900	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4901
4902	for (uint32_t i = 0; i < cTextureStates; ++i)
4903	{
4904	GLenum textureType = ~(GLenum)0;
4905	#if 0
4906	GLenum samplerType = ~(GLenum)0;
4907	#endif
4908
4909	LogFunc(("cid=%u stage=%d type=%s (%x) val=%x\n",
4910	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4911
4912	/* Record the texture state for vm state saving. */
4913	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4914	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4915	{
4916	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4917	}
4918
4919	/* Activate the right texture unit for subsequent texture state changes. */
4920	if (pTextureState[i].stage != currentStage \|\| i == 0)
4921	{
4922	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4923	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4924	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4925	{
4926	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4927	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4928	currentStage = pTextureState[i].stage;
4929	}
4930	else
4931	{
4932	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4933	continue;
4934	}
4935
4936	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4937	{
4938	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4939	AssertRCReturn(rc, rc);
4940	}
4941	else
4942	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4943	}
4944
4945	switch (pTextureState[i].name)
4946	{
4947	case SVGA3D_TS_BUMPENVMAT00: /* float */
4948	case SVGA3D_TS_BUMPENVMAT01: /* float */
4949	case SVGA3D_TS_BUMPENVMAT10: /* float */
4950	case SVGA3D_TS_BUMPENVMAT11: /* float */
4951	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4952	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4953	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4954	break;
4955
4956	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4957	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4958	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4959	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4960	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4961	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4962	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4963	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4964	/** @todo not used by MesaGL */
4965	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4966	break;
4967	#if 0
4968
4969	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4970	textureType = D3DTSS_TEXCOORDINDEX;
4971	val = pTextureState[i].value;
4972	break;
4973
4974	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4975	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4976	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4977	break;
4978	#endif
4979
4980	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4981	{
4982	uint32_t const sid = pTextureState[i].value;
4983
4984	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u replacing sid=%u\n",
4985	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4986
4987	/* Only if texture actually changed. */ /// @todo needs testing.
4988	if (pContext->aSidActiveTextures[currentStage] != sid)
4989	{
4990	if (pCurrentTextureSurface)
4991	{
4992	/* Unselect the currently associated texture. */
4993	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4994	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4995
4996	if (currentStage < 8)
4997	{
4998	/* Necessary for the fixed pipeline. */
4999	glDisable(pCurrentTextureSurface->targetGL);
5000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5001	}
5002
5003	pCurrentTextureSurface = NULL;
5004	}
5005
5006	if (sid == SVGA3D_INVALID_ID)
5007	{
5008	Assert(pCurrentTextureSurface == NULL);
5009	}
5010	else
5011	{
5012	PVMSVGA3DSURFACE pSurface;
5013	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5014	AssertRCReturn(rc, rc);
5015
5016	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u (%d,%d) replacing sid=%u\n",
5017	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
5018	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5019
5020	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5021	{
5022	Log(("CreateTexture (%d,%d) levels=%d\n",
5023	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5024	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5025	AssertRCReturn(rc, rc);
5026	}
5027
5028	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5029	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5030
5031	if (currentStage < 8)
5032	{
5033	/* Necessary for the fixed pipeline. */
5034	glEnable(pSurface->targetGL);
5035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5036	}
5037
5038	/* Remember the currently active texture. */
5039	pCurrentTextureSurface = pSurface;
5040
5041	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5042	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5043	{
5044	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5045	{
5046	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5047
5048	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5049	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5050	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5051	}
5052	}
5053	}
5054
5055	pContext->aSidActiveTextures[currentStage] = sid;
5056	}
5057
5058	/* Finished; continue with the next one. */
5059	continue;
5060	}
5061
5062	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5063	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5064	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5065	break;
5066
5067	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5068	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5069	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5070	break;
5071
5072	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5073	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5074	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5075	break;
5076
5077	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5078	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5079	{
5080	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5081	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5082
5083	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5084	textureType = GL_TEXTURE_MIN_FILTER;
5085	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5086	{
5087	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5088	{
5089	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5090	val = GL_NEAREST_MIPMAP_LINEAR;
5091	else
5092	val = GL_NEAREST_MIPMAP_NEAREST;
5093	}
5094	else
5095	{
5096	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5097	val = GL_LINEAR_MIPMAP_LINEAR;
5098	else
5099	val = GL_LINEAR_MIPMAP_NEAREST;
5100	}
5101	}
5102	else
5103	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5104	break;
5105	}
5106
5107	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5108	textureType = GL_TEXTURE_MAG_FILTER;
5109	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5110	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5111	break;
5112
5113	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5114	{
5115	GLfloat color[4]; /* red, green, blue, alpha */
5116	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5117
5118	GLenum targetGL;
5119	if (pCurrentTextureSurface)
5120	targetGL = pCurrentTextureSurface->targetGL;
5121	else
5122	{
5123	/* No texture bound, assume 2D. */
5124	targetGL = GL_TEXTURE_2D;
5125	}
5126
5127	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5128	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5129	break;
5130	}
5131
5132	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5133	{
5134	GLenum targetGL;
5135	if (pCurrentTextureSurface)
5136	targetGL = pCurrentTextureSurface->targetGL;
5137	else
5138	{
5139	/* No texture bound, assume 2D. */
5140	targetGL = GL_TEXTURE_2D;
5141	}
5142
5143	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5144	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5145	break;
5146	}
5147
5148	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5149	textureType = GL_TEXTURE_BASE_LEVEL;
5150	val = pTextureState[i].value;
5151	break;
5152
5153	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5154	if (pState->caps.fTextureFilterAnisotropicSupported)
5155	{
5156	textureType = GL_TEXTURE_MAX_ANISOTROPY_EXT;
5157	val = RT_MIN((GLint)pTextureState[i].value, pState->caps.maxTextureAnisotropy);
5158	} /* otherwise ignore. */
5159	break;
5160
5161	#if 0
5162	case SVGA3D_TS_GAMMA: /* float */
5163	samplerType = D3DSAMP_SRGBTEXTURE;
5164	/* Boolean in D3D */
5165	if (pTextureState[i].floatValue == 1.0f)
5166	val = FALSE;
5167	else
5168	val = TRUE;
5169	break;
5170	#endif
5171	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5172	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5173	AssertFailed();
5174	break;
5175
5176	default:
5177	//AssertFailed();
5178	break;
5179	}
5180
5181	if (textureType != ~(GLenum)0)
5182	{
5183	GLenum targetGL;
5184	if (pCurrentTextureSurface)
5185	targetGL = pCurrentTextureSurface->targetGL;
5186	else
5187	{
5188	/* No texture bound, assume 2D. */
5189	targetGL = GL_TEXTURE_2D;
5190	}
5191
5192	switch (pTextureState[i].name)
5193	{
5194	case SVGA3D_TS_MINFILTER:
5195	case SVGA3D_TS_MAGFILTER:
5196	{
5197	if (pState->caps.fTextureFilterAnisotropicSupported)
5198	{
5199	uint32_t const anisotropyLevel = (SVGA3dTextureFilter)pTextureState[i].value == SVGA3D_TEX_FILTER_ANISOTROPIC
5200	? RT_MAX(1, pContext->state.aTextureStates[currentStage][SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL].value)
5201	: 1;
5202	glTexParameteri(targetGL, GL_TEXTURE_MAX_ANISOTROPY_EXT, RT_MIN((GLint)anisotropyLevel, pState->caps.maxTextureAnisotropy));
5203	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5204	}
5205	} break;
5206
5207	default: break;
5208	}
5209
5210	glTexParameteri(targetGL, textureType, val);
5211	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5212	}
5213	}
5214
5215	return VINF_SUCCESS;
5216	}
5217
5218	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5219	{
5220	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5221	AssertReturn(pState, VERR_NO_MEMORY);
5222
5223	LogFunc(("cid=%u face %d\n", cid, face));
5224
5225	PVMSVGA3DCONTEXT pContext;
5226	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5227	AssertRCReturn(rc, rc);
5228
5229	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5230
5231	GLenum oglFace;
5232	switch (face)
5233	{
5234	case SVGA3D_FACE_NONE:
5235	case SVGA3D_FACE_FRONT:
5236	oglFace = GL_FRONT;
5237	break;
5238
5239	case SVGA3D_FACE_BACK:
5240	oglFace = GL_BACK;
5241	break;
5242
5243	case SVGA3D_FACE_FRONT_BACK:
5244	oglFace = GL_FRONT_AND_BACK;
5245	break;
5246
5247	default:
5248	AssertFailedReturn(VERR_INVALID_PARAMETER);
5249	}
5250
5251	/* Save for vm state save/restore. */
5252	pContext->state.aMaterial[face].fValid = true;
5253	pContext->state.aMaterial[face].material = *pMaterial;
5254	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5255
5256	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5257	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5258	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5259	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5260	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5262
5263	return VINF_SUCCESS;
5264	}
5265
5266	/** @todo Move into separate library as we are using logic from Wine here. */
5267	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5268	{
5269	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5270	AssertReturn(pState, VERR_NO_MEMORY);
5271
5272	LogFunc(("vmsvga3dSetLightData cid=%u index=%d type=%d\n", cid, index, pData->type));
5273
5274	PVMSVGA3DCONTEXT pContext;
5275	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5276	AssertRCReturn(rc, rc);
5277
5278	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5279
5280	/* Store for vm state save/restore */
5281	if (index < SVGA3D_MAX_LIGHTS)
5282	{
5283	pContext->state.aLightData[index].fValidData = true;
5284	pContext->state.aLightData[index].data = *pData;
5285	}
5286	else
5287	AssertFailed();
5288
5289	if ( pData->attenuation0 < 0.0f
5290	\|\| pData->attenuation1 < 0.0f
5291	\|\| pData->attenuation2 < 0.0f)
5292	{
5293	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5294	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5295	}
5296
5297	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5298	glMatrixMode(GL_MODELVIEW);
5299	glPushMatrix();
5300	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5301
5302	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5303	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5304	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5305
5306	float QuadAttenuation;
5307	if (pData->range * pData->range >= FLT_MIN)
5308	QuadAttenuation = 1.4f / (pData->range * pData->range);
5309	else
5310	QuadAttenuation = 0.0f;
5311
5312	switch (pData->type)
5313	{
5314	case SVGA3D_LIGHTTYPE_POINT:
5315	{
5316	GLfloat position[4];
5317
5318	position[0] = pData->position[0];
5319	position[1] = pData->position[1];
5320	position[2] = pData->position[2];
5321	position[3] = 1.0f;
5322
5323	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5324	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5325
5326	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5327	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5328
5329	/* Attenuation - Are these right? guessing... */
5330	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5331	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5332
5333	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5334	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5335
5336	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5337	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5338
5339	/** @todo range */
5340	break;
5341	}
5342
5343	case SVGA3D_LIGHTTYPE_SPOT1:
5344	{
5345	GLfloat exponent;
5346	GLfloat position[4];
5347	const GLfloat pi = 4.0f * atanf(1.0f);
5348
5349	position[0] = pData->position[0];
5350	position[1] = pData->position[1];
5351	position[2] = pData->position[2];
5352	position[3] = 1.0f;
5353
5354	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5355	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5356
5357	position[0] = pData->direction[0];
5358	position[1] = pData->direction[1];
5359	position[2] = pData->direction[2];
5360	position[3] = 1.0f;
5361
5362	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5363	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5364
5365	/*
5366	* opengl-ish and d3d-ish spot lights use too different models for the
5367	* light "intensity" as a function of the angle towards the main light direction,
5368	* so we only can approximate very roughly.
5369	* however spot lights are rather rarely used in games (if ever used at all).
5370	* furthermore if still used, probably nobody pays attention to such details.
5371	*/
5372	if (pData->falloff == 0)
5373	{
5374	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5375	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5376	* will always be 1.0 for both of them, and we don't have to care for the
5377	* rest of the rather complex calculation
5378	*/
5379	exponent = 0.0f;
5380	}
5381	else
5382	{
5383	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5384	if (rho < 0.0001f)
5385	rho = 0.0001f;
5386	exponent = -0.3f/log(cos(rho/2));
5387	}
5388	if (exponent > 128.0f)
5389	exponent = 128.0f;
5390
5391	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5392	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5393
5394	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5395	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5396
5397	/* Attenuation - Are these right? guessing... */
5398	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5399	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5400
5401	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5402	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5403
5404	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5405	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5406
5407	/** @todo range */
5408	break;
5409	}
5410
5411	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5412	{
5413	GLfloat position[4];
5414
5415	position[0] = -pData->direction[0];
5416	position[1] = -pData->direction[1];
5417	position[2] = -pData->direction[2];
5418	position[3] = 0.0f;
5419
5420	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5421	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5422
5423	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5424	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5425
5426	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5427	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5428	break;
5429	}
5430
5431	case SVGA3D_LIGHTTYPE_SPOT2:
5432	default:
5433	Log(("Unsupported light type!!\n"));
5434	rc = VERR_INVALID_PARAMETER;
5435	break;
5436	}
5437
5438	/* Restore the modelview matrix */
5439	glPopMatrix();
5440
5441	return rc;
5442	}
5443
5444	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5445	{
5446	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5447	AssertReturn(pState, VERR_NO_MEMORY);
5448
5449	LogFunc(("cid=%u %d -> %d\n", cid, index, enabled));
5450
5451	PVMSVGA3DCONTEXT pContext;
5452	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5453	AssertRCReturn(rc, rc);
5454
5455	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5456
5457	/* Store for vm state save/restore */
5458	if (index < SVGA3D_MAX_LIGHTS)
5459	pContext->state.aLightData[index].fEnabled = !!enabled;
5460	else
5461	AssertFailed();
5462
5463	if (enabled)
5464	{
5465	if (index < SVGA3D_MAX_LIGHTS)
5466	{
5467	/* Load the default settings if none have been set yet. */
5468	if (!pContext->state.aLightData[index].fValidData)
5469	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5470	}
5471	glEnable(GL_LIGHT0 + index);
5472	}
5473	else
5474	glDisable(GL_LIGHT0 + index);
5475
5476	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5477	return VINF_SUCCESS;
5478	}
5479
5480	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5481	{
5482	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5483	AssertReturn(pState, VERR_NO_MEMORY);
5484
5485	Log(("vmsvga3dSetViewPort cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5486
5487	PVMSVGA3DCONTEXT pContext;
5488	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5489	AssertRCReturn(rc, rc);
5490
5491	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5492
5493	/* Save for vm state save/restore. */
5494	pContext->state.RectViewPort = *pRect;
5495	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5496
5497	/** @todo y-inversion for partial viewport coordinates? */
5498	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5500
5501	/* Reset the projection matrix as that relies on the viewport setting. */
5502	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5503	{
5504	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5505	}
5506	else
5507	{
5508	float matrix[16];
5509
5510	/* identity matrix if no matrix set. */
5511	memset(matrix, 0, sizeof(matrix));
5512	matrix[0] = 1.0;
5513	matrix[5] = 1.0;
5514	matrix[10] = 1.0;
5515	matrix[15] = 1.0;
5516	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5517	}
5518
5519	return VINF_SUCCESS;
5520	}
5521
5522	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5523	{
5524	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5525	AssertReturn(pState, VERR_NO_MEMORY);
5526	double oglPlane[4];
5527
5528	Log(("vmsvga3dSetClipPlane cid=%u %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5529	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5530
5531	PVMSVGA3DCONTEXT pContext;
5532	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5533	AssertRCReturn(rc, rc);
5534
5535	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5536
5537	/* Store for vm state save/restore. */
5538	pContext->state.aClipPlane[index].fValid = true;
5539	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5540
5541	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5542	oglPlane[0] = (double)plane[0];
5543	oglPlane[1] = (double)plane[1];
5544	oglPlane[2] = (double)plane[2];
5545	oglPlane[3] = (double)plane[3];
5546
5547	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5548	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5549
5550	return VINF_SUCCESS;
5551	}
5552
5553	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5554	{
5555	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5556	AssertReturn(pState, VERR_NO_MEMORY);
5557
5558	Log(("vmsvga3dSetScissorRect cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5559
5560	PVMSVGA3DCONTEXT pContext;
5561	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5562	AssertRCReturn(rc, rc);
5563
5564	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5565
5566	/* Store for vm state save/restore. */
5567	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5568	pContext->state.RectScissor = *pRect;
5569
5570	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5571	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5572
5573	return VINF_SUCCESS;
5574	}
5575
5576	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5577	{
5578	/* Convert byte color components to float (0-1.0) */
5579	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5580	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5581	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5582	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5583	}
5584
5585	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5586	uint32_t cRects, SVGA3dRect *pRect)
5587	{
5588	GLbitfield mask = 0;
5589	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5590	AssertReturn(pState, VERR_NO_MEMORY);
5591	GLboolean fDepthWriteEnabled = GL_FALSE;
5592
5593	Log(("vmsvga3dCommandClear cid=%u clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5594
5595	PVMSVGA3DCONTEXT pContext;
5596	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5597	AssertRCReturn(rc, rc);
5598
5599	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5600
5601	if (clearFlag & SVGA3D_CLEAR_COLOR)
5602	{
5603	GLfloat red, green, blue, alpha;
5604
5605	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5606
5607	/* Set the color clear value. */
5608	glClearColor(red, green, blue, alpha);
5609
5610	mask \|= GL_COLOR_BUFFER_BIT;
5611	}
5612	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5613	{
5614	/** @todo possibly the same problem as with glDepthMask */
5615	glClearStencil(stencil);
5616	mask \|= GL_STENCIL_BUFFER_BIT;
5617	}
5618	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5619	{
5620	glClearDepth((GLdouble)depth);
5621	mask \|= GL_DEPTH_BUFFER_BIT;
5622
5623	/* glClear will not clear the depth buffer if writing is disabled. */
5624	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5625	if (fDepthWriteEnabled == GL_FALSE)
5626	glDepthMask(GL_TRUE);
5627	}
5628
5629	if (cRects)
5630	{
5631	/* Save the current scissor test bit and scissor box. */
5632	glPushAttrib(GL_SCISSOR_BIT);
5633	glEnable(GL_SCISSOR_TEST);
5634	for (unsigned i=0; i < cRects; i++)
5635	{
5636	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));
5637	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5638	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5639	glClear(mask);
5640	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5641	}
5642	/* Restore the old scissor test bit and box */
5643	glPopAttrib();
5644	}
5645	else
5646	{
5647	glClear(mask);
5648	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5649	}
5650
5651	/* Restore depth write state. */
5652	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5653	&& fDepthWriteEnabled == GL_FALSE)
5654	glDepthMask(GL_FALSE);
5655
5656	return VINF_SUCCESS;
5657	}
5658
5659	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5660	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5661	{
5662	normalized = GL_FALSE;
5663	switch (identity.type)
5664	{
5665	case SVGA3D_DECLTYPE_FLOAT1:
5666	size = 1;
5667	type = GL_FLOAT;
5668	break;
5669	case SVGA3D_DECLTYPE_FLOAT2:
5670	size = 2;
5671	type = GL_FLOAT;
5672	break;
5673	case SVGA3D_DECLTYPE_FLOAT3:
5674	size = 3;
5675	type = GL_FLOAT;
5676	break;
5677	case SVGA3D_DECLTYPE_FLOAT4:
5678	size = 4;
5679	type = GL_FLOAT;
5680	break;
5681
5682	case SVGA3D_DECLTYPE_D3DCOLOR:
5683	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5684	type = GL_UNSIGNED_BYTE;
5685	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5686	break;
5687
5688	case SVGA3D_DECLTYPE_UBYTE4N:
5689	normalized = GL_TRUE;
5690	RT_FALL_THRU();
5691	case SVGA3D_DECLTYPE_UBYTE4:
5692	size = 4;
5693	type = GL_UNSIGNED_BYTE;
5694	break;
5695
5696	case SVGA3D_DECLTYPE_SHORT2N:
5697	normalized = GL_TRUE;
5698	RT_FALL_THRU();
5699	case SVGA3D_DECLTYPE_SHORT2:
5700	size = 2;
5701	type = GL_SHORT;
5702	break;
5703
5704	case SVGA3D_DECLTYPE_SHORT4N:
5705	normalized = GL_TRUE;
5706	RT_FALL_THRU();
5707	case SVGA3D_DECLTYPE_SHORT4:
5708	size = 4;
5709	type = GL_SHORT;
5710	break;
5711
5712	case SVGA3D_DECLTYPE_USHORT4N:
5713	normalized = GL_TRUE;
5714	size = 4;
5715	type = GL_UNSIGNED_SHORT;
5716	break;
5717
5718	case SVGA3D_DECLTYPE_USHORT2N:
5719	normalized = GL_TRUE;
5720	size = 2;
5721	type = GL_UNSIGNED_SHORT;
5722	break;
5723
5724	case SVGA3D_DECLTYPE_UDEC3:
5725	size = 3;
5726	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5727	break;
5728
5729	case SVGA3D_DECLTYPE_DEC3N:
5730	normalized = true;
5731	size = 3;
5732	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5733	break;
5734
5735	case SVGA3D_DECLTYPE_FLOAT16_2:
5736	size = 2;
5737	type = GL_HALF_FLOAT;
5738	break;
5739	case SVGA3D_DECLTYPE_FLOAT16_4:
5740	size = 4;
5741	type = GL_HALF_FLOAT;
5742	break;
5743	default:
5744	AssertFailedReturn(VERR_INVALID_PARAMETER);
5745	}
5746
5747	//pVertexElement->Method = identity.method;
5748	//pVertexElement->Usage = identity.usage;
5749
5750	return VINF_SUCCESS;
5751	}
5752
5753	/* Convert VMWare primitive type to its OpenGL equivalent. */
5754	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5755	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5756	{
5757	switch (PrimitiveType)
5758	{
5759	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5760	*pMode = GL_TRIANGLES;
5761	pcVertices = cPrimitiveCount 3;
5762	break;
5763	case SVGA3D_PRIMITIVE_POINTLIST:
5764	*pMode = GL_POINTS;
5765	*pcVertices = cPrimitiveCount;
5766	break;
5767	case SVGA3D_PRIMITIVE_LINELIST:
5768	*pMode = GL_LINES;
5769	pcVertices = cPrimitiveCount 2;
5770	break;
5771	case SVGA3D_PRIMITIVE_LINESTRIP:
5772	*pMode = GL_LINE_STRIP;
5773	*pcVertices = cPrimitiveCount + 1;
5774	break;
5775	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5776	*pMode = GL_TRIANGLE_STRIP;
5777	*pcVertices = cPrimitiveCount + 2;
5778	break;
5779	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5780	*pMode = GL_TRIANGLE_FAN;
5781	*pcVertices = cPrimitiveCount + 2;
5782	break;
5783	default:
5784	return VERR_INVALID_PARAMETER;
5785	}
5786	return VINF_SUCCESS;
5787	}
5788
5789	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5790	{
5791	int rc;
5792
5793	/* Reset the view matrix (also takes the world matrix into account). */
5794	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5795	{
5796	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5797	}
5798	else
5799	{
5800	float matrix[16];
5801
5802	/* identity matrix if no matrix set. */
5803	memset(matrix, 0, sizeof(matrix));
5804	matrix[0] = 1.0;
5805	matrix[5] = 1.0;
5806	matrix[10] = 1.0;
5807	matrix[15] = 1.0;
5808	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5809	}
5810
5811	/* Reset the projection matrix. */
5812	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5813	{
5814	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5815	}
5816	else
5817	{
5818	float matrix[16];
5819
5820	/* identity matrix if no matrix set. */
5821	memset(matrix, 0, sizeof(matrix));
5822	matrix[0] = 1.0;
5823	matrix[5] = 1.0;
5824	matrix[10] = 1.0;
5825	matrix[15] = 1.0;
5826	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5827	}
5828	AssertRC(rc);
5829	return rc;
5830	}
5831
5832	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5833	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5834	SVGA3dVertexDecl *pVertexDecl,
5835	SVGA3dVertexDivisor const *paVertexDivisors, uint32_t cInstances)
5836	{
5837	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5838	unsigned const sidVertex = pVertexDecl[0].array.surfaceId;
5839
5840	PVMSVGA3DSURFACE pVertexSurface;
5841	int rc = vmsvga3dSurfaceFromSid(pState, sidVertex, &pVertexSurface);
5842	AssertRCReturn(rc, rc);
5843
5844	Log(("vmsvga3dDrawPrimitives: vertex surface sid=%u\n", sidVertex));
5845
5846	/* Create and/or bind the vertex buffer. */
5847	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5848	{
5849	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5850	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5851	pContext = &pState->SharedCtx;
5852	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5853
5854	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5855	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5856	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
5857
5858	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5859	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5860
5861	Assert(pVertexSurface->fDirty);
5862	/** @todo rethink usage dynamic/static */
5863	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5864	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5865
5866	pVertexSurface->pMipmapLevels[0].fDirty = false;
5867	pVertexSurface->fDirty = false;
5868
5869	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5870
5871	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5872	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5873
5874	pContext = pSavedCtx;
5875	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5876	}
5877
5878	Assert(pVertexSurface->fDirty == false);
5879	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5880	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5881
5882	/* Setup the vertex declarations. */
5883	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5884	{
5885	GLint size;
5886	GLenum type;
5887	GLboolean normalized;
5888	GLuint index = iVertexDeclBase + iVertex;
5889
5890	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));
5891
5892	rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5893	AssertRCReturn(rc, rc);
5894
5895	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5896	{
5897	/* Use numbered vertex arrays when shaders are active. */
5898	pState->ext.glEnableVertexAttribArray(index);
5899	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5900	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5901	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5902	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5903
5904	GLuint divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5905	if (pVertexDecl[iVertex].array.stride == 0)
5906	{
5907	/* Zero stride means that the attribute pointer must not be increased.
5908	* See comment about stride in vmsvga3dDrawPrimitives.
5909	*/
5910	if (!divisor)
5911	{
5912	LogRelMax(8, ("VMSVGA: zero stride array (instancing %s %d)\n", paVertexDivisors ? "on" : "off", cInstances));
5913	AssertFailed();
5914	}
5915
5916	divisor = cInstances; /* This attrib must never advance. */
5917	}
5918	pState->ext.glVertexAttribDivisor(index, divisor);
5919	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5920
5921	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5922	}
5923	else
5924	{
5925	if (pVertexDecl[iVertex].array.stride == 0)
5926	{
5927	/* Zero stride means that the attribute pointer must not be increased.
5928	* See comment about stride in vmsvga3dDrawPrimitives.
5929	*/
5930	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
5931	AssertFailed();
5932	}
5933
5934	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5935	switch (pVertexDecl[iVertex].identity.usage)
5936	{
5937	case SVGA3D_DECLUSAGE_POSITIONT:
5938	case SVGA3D_DECLUSAGE_POSITION:
5939	{
5940	glEnableClientState(GL_VERTEX_ARRAY);
5941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5942	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5943	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5944	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5945	break;
5946	}
5947	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5948	AssertFailed();
5949	break;
5950	case SVGA3D_DECLUSAGE_BLENDINDICES:
5951	AssertFailed();
5952	break;
5953	case SVGA3D_DECLUSAGE_NORMAL:
5954	glEnableClientState(GL_NORMAL_ARRAY);
5955	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5956	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5957	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5958	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5959	break;
5960	case SVGA3D_DECLUSAGE_PSIZE:
5961	AssertFailed();
5962	break;
5963	case SVGA3D_DECLUSAGE_TEXCOORD:
5964	/* Specify the affected texture unit. */
5965	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5966	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5967	#else
5968	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5969	#endif
5970	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5971	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5972	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5973	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5974	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5975	break;
5976	case SVGA3D_DECLUSAGE_TANGENT:
5977	AssertFailed();
5978	break;
5979	case SVGA3D_DECLUSAGE_BINORMAL:
5980	AssertFailed();
5981	break;
5982	case SVGA3D_DECLUSAGE_TESSFACTOR:
5983	AssertFailed();
5984	break;
5985	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5986	glEnableClientState(GL_COLOR_ARRAY);
5987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5988	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5989	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5991	break;
5992	case SVGA3D_DECLUSAGE_FOG:
5993	glEnableClientState(GL_FOG_COORD_ARRAY);
5994	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5995	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5996	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5997	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5998	break;
5999	case SVGA3D_DECLUSAGE_DEPTH:
6000	AssertFailed();
6001	break;
6002	case SVGA3D_DECLUSAGE_SAMPLE:
6003	AssertFailed();
6004	break;
6005	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6006	}
6007	}
6008
6009	#ifdef LOG_ENABLED
6010	if (pVertexDecl[iVertex].array.stride == 0)
6011	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6012	#endif
6013	}
6014
6015	return VINF_SUCCESS;
6016	}
6017
6018	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6019	{
6020	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6021
6022	/* Clean up the vertex declarations. */
6023	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6024	{
6025	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6026	{
6027	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6028	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6029	vmsvga3dResetTransformMatrices(pThis, pContext);
6030	}
6031
6032	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6033	{
6034	/* Use numbered vertex arrays when shaders are active. */
6035	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6036	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6037	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6038	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6039	}
6040	else
6041	{
6042	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6043	switch (pVertexDecl[iVertex].identity.usage)
6044	{
6045	case SVGA3D_DECLUSAGE_POSITION:
6046	case SVGA3D_DECLUSAGE_POSITIONT:
6047	glDisableClientState(GL_VERTEX_ARRAY);
6048	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6049	break;
6050	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6051	break;
6052	case SVGA3D_DECLUSAGE_BLENDINDICES:
6053	break;
6054	case SVGA3D_DECLUSAGE_NORMAL:
6055	glDisableClientState(GL_NORMAL_ARRAY);
6056	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6057	break;
6058	case SVGA3D_DECLUSAGE_PSIZE:
6059	break;
6060	case SVGA3D_DECLUSAGE_TEXCOORD:
6061	/* Specify the affected texture unit. */
6062	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6063	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6064	#else
6065	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6066	#endif
6067	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6069	break;
6070	case SVGA3D_DECLUSAGE_TANGENT:
6071	break;
6072	case SVGA3D_DECLUSAGE_BINORMAL:
6073	break;
6074	case SVGA3D_DECLUSAGE_TESSFACTOR:
6075	break;
6076	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6077	glDisableClientState(GL_COLOR_ARRAY);
6078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6079	break;
6080	case SVGA3D_DECLUSAGE_FOG:
6081	glDisableClientState(GL_FOG_COORD_ARRAY);
6082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6083	break;
6084	case SVGA3D_DECLUSAGE_DEPTH:
6085	break;
6086	case SVGA3D_DECLUSAGE_SAMPLE:
6087	break;
6088	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6089	}
6090	}
6091	}
6092	/* Unbind the vertex buffer after usage. */
6093	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6094	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6095	return VINF_SUCCESS;
6096	}
6097
6098	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6099	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6100	SVGA3dVertexDivisor *pVertexDivisor)
6101	{
6102	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6103	AssertReturn(pState, VERR_INTERNAL_ERROR);
6104	uint32_t iCurrentVertex;
6105
6106	Log(("vmsvga3dDrawPrimitives cid=%u numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6107
6108	/* Caller already check these, but it cannot hurt to check again... */
6109	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6110	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6111	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6112
6113	if (!cVertexDivisor)
6114	pVertexDivisor = NULL; /* Be sure. */
6115
6116	PVMSVGA3DCONTEXT pContext;
6117	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6118	AssertRCReturn(rc, rc);
6119
6120	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6121
6122	/* Check for pretransformed vertex declarations. */
6123	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6124	{
6125	switch (pVertexDecl[iVertex].identity.usage)
6126	{
6127	case SVGA3D_DECLUSAGE_POSITIONT:
6128	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6129	RT_FALL_THRU();
6130	case SVGA3D_DECLUSAGE_POSITION:
6131	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6132	pContext->state.RectViewPort.h,
6133	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6134	break;
6135	default: /* Shut up MSC. */ break;
6136	}
6137	}
6138
6139	/*
6140	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6141	* - D3D and VMSVGA: "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6142	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6143	* VMSVGA uses the D3D semantics.
6144	*
6145	* In order to tell OpenGL to reuse the zero stride attributes for each vertex
6146	* such attributes could be declared as instance data, then OpenGL applies them once
6147	* for all vertices of the one drawn instance.
6148	*
6149	* If instancing is already used (cVertexDivisor > 0), then the code does nothing and assumes that
6150	* all instance data is already correctly marked as such.
6151	*
6152	* If instancing is not requisted (cVertexDivisor == 0), then the code creates a description for
6153	* one instance where all arrays with zero stride are marked as instance data, and all arrays
6154	* with non-zero stride as indexed data.
6155	*/
6156	bool fZeroStrideArray = false;
6157	if (cVertexDivisor == 0)
6158	{
6159	unsigned i;
6160	for (i = 0; i < numVertexDecls; ++i)
6161	{
6162	if (pVertexDecl[i].array.stride == 0)
6163	{
6164	fZeroStrideArray = true;
6165	break;
6166	}
6167	}
6168
6169	if (fZeroStrideArray)
6170	{
6171	cVertexDivisor = numVertexDecls;
6172	pVertexDivisor = (SVGA3dVertexDivisor )RTMemTmpAlloc(sizeof(SVGA3dVertexDivisor) cVertexDivisor);
6173	AssertPtrReturn(pVertexDivisor, VERR_NO_MEMORY);
6174
6175	for (i = 0; i < numVertexDecls; ++i)
6176	{
6177	pVertexDivisor[i].s.count = 1;
6178	if (pVertexDecl[i].array.stride == 0)
6179	{
6180	pVertexDivisor[i].s.instanceData = 1;
6181	}
6182	else
6183	{
6184	pVertexDivisor[i].s.indexedData = 1;
6185	}
6186	}
6187	}
6188	}
6189
6190	/* Try to figure out if instancing is used.
6191	* Support simple instancing case with one set of indexed data and one set per-instance data.
6192	*/
6193	uint32_t cInstances = 0;
6194	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6195	{
6196	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6197	{
6198	if (cInstances == 0)
6199	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6200	else
6201	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6202	}
6203	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6204	{
6205	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6206	}
6207	}
6208
6209	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6210	if (pContext->pShaderContext)
6211	{
6212	uint32_t rtHeight = 0;
6213
6214	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6215	{
6216	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6217	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6218	}
6219
6220	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6221	}
6222
6223	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6224	iCurrentVertex = 0;
6225	while (iCurrentVertex < numVertexDecls)
6226	{
6227	uint32_t sidVertex = SVGA_ID_INVALID;
6228	uint32_t iVertex;
6229
6230	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6231	{
6232	if ( sidVertex != SVGA_ID_INVALID
6233	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6234	)
6235	break;
6236	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6237	}
6238
6239	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6240	&pVertexDecl[iCurrentVertex], pVertexDivisor, cInstances);
6241	AssertRCReturn(rc, rc);
6242
6243	iCurrentVertex = iVertex;
6244	}
6245
6246	/* Now draw the primitives. */
6247	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6248	{
6249	GLenum modeDraw;
6250	unsigned const sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6251	PVMSVGA3DSURFACE pIndexSurface = NULL;
6252	unsigned cVertices;
6253
6254	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6255	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6256	if (RT_FAILURE(rc))
6257	{
6258	AssertRC(rc);
6259	goto internal_error;
6260	}
6261
6262	if (sidIndex != SVGA3D_INVALID_ID)
6263	{
6264	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6265
6266	rc = vmsvga3dSurfaceFromSid(pState, sidIndex, &pIndexSurface);
6267	if (RT_FAILURE(rc))
6268	{
6269	AssertRC(rc);
6270	goto internal_error;
6271	}
6272
6273	Log(("vmsvga3dDrawPrimitives: index surface sid=%u\n", sidIndex));
6274
6275	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6276	{
6277	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6278	pContext = &pState->SharedCtx;
6279	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6280
6281	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6282	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6283	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6284
6285	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6286	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6287
6288	Assert(pIndexSurface->fDirty);
6289
6290	/** @todo rethink usage dynamic/static */
6291	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6292	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6293
6294	pIndexSurface->pMipmapLevels[0].fDirty = false;
6295	pIndexSurface->fDirty = false;
6296
6297	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6298
6299	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6300	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6301
6302	pContext = pState->papContexts[cid];
6303	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6304	}
6305	Assert(pIndexSurface->fDirty == false);
6306
6307	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6308	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6309	}
6310
6311	if (!pIndexSurface)
6312	{
6313	/* Render without an index buffer */
6314	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
6315	if (cInstances == 0)
6316	{
6317	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6318	}
6319	else
6320	{
6321	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6322	}
6323	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6324	}
6325	else
6326	{
6327	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6328
6329	GLenum indexType;
6330	switch (pRange[iPrimitive].indexWidth)
6331	{
6332	case 1: indexType = GL_UNSIGNED_BYTE; break;
6333	case 2: indexType = GL_UNSIGNED_SHORT; break;
6334	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
6335	RT_FALL_THROUGH();
6336	case 4: indexType = GL_UNSIGNED_INT; break;
6337	}
6338
6339	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));
6340	if (cInstances == 0)
6341	{
6342	/* Render with an index buffer */
6343	if (pRange[iPrimitive].indexBias == 0)
6344	glDrawElements(modeDraw,
6345	cVertices,
6346	indexType,
6347	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6348	else
6349	pState->ext.glDrawElementsBaseVertex(modeDraw,
6350	cVertices,
6351	indexType,
6352	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6353	pRange[iPrimitive].indexBias); /* basevertex */
6354	}
6355	else
6356	{
6357	/* Render with an index buffer */
6358	if (pRange[iPrimitive].indexBias == 0)
6359	pState->ext.glDrawElementsInstanced(modeDraw,
6360	cVertices,
6361	indexType,
6362	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6363	cInstances);
6364	else
6365	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6366	cVertices,
6367	indexType,
6368	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6369	cInstances,
6370	pRange[iPrimitive].indexBias); /* basevertex */
6371	}
6372	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6373
6374	/* Unbind the index buffer after usage. */
6375	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6376	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6377	}
6378	}
6379
6380	internal_error:
6381
6382	/* Deactivate the vertex declarations. */
6383	iCurrentVertex = 0;
6384	while (iCurrentVertex < numVertexDecls)
6385	{
6386	uint32_t sidVertex = SVGA_ID_INVALID;
6387	uint32_t iVertex;
6388
6389	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6390	{
6391	if ( sidVertex != SVGA_ID_INVALID
6392	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6393	)
6394	break;
6395	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6396	}
6397
6398	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6399	AssertRCReturn(rc, rc);
6400
6401	iCurrentVertex = iVertex;
6402	}
6403
6404	if (fZeroStrideArray)
6405	{
6406	RTMemTmpFree(pVertexDivisor);
6407	pVertexDivisor = NULL;
6408	}
6409
6410	#ifdef DEBUG
6411	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6412	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6413	{
6414	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6415	{
6416	PVMSVGA3DSURFACE pTexture;
6417	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6418	AssertContinue(RT_SUCCESS(rc2));
6419
6420	GLint activeTextureUnit = 0;
6421	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6422	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6423
6424	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6425	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6426
6427	GLint activeTexture = 0;
6428	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6429	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6430
6431	pState->ext.glActiveTexture(activeTextureUnit);
6432	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6433
6434	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6435	("%d vs %d unit %d (active unit %d) sid=%u\n", pTexture->oglId.texture, activeTexture, i,
6436	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6437	}
6438	}
6439	#endif
6440
6441	#if 0
6442	/* Dump render target to a bitmap. */
6443	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6444	{
6445	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6446	PVMSVGA3DSURFACE pSurface;
6447	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6448	if (RT_SUCCESS(rc2))
6449	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
6450	# if 0
6451	/* Stage 0 texture. */
6452	if (pContext->aSidActiveTextures[0] != SVGA3D_INVALID_ID)
6453	{
6454	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->aSidActiveTextures[0]);
6455	rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[0], &pSurface);
6456	if (RT_SUCCESS(rc2))
6457	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post-tx");
6458	}
6459	# endif
6460	}
6461	#endif
6462
6463	return rc;
6464	}
6465
6466
6467	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6468	{
6469	PVMSVGA3DSHADER pShader;
6470	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6471	AssertReturn(pState, VERR_NO_MEMORY);
6472
6473	Log(("vmsvga3dShaderDefine cid=%u shid=%d type=%s cbData=0x%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6474	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6475
6476	PVMSVGA3DCONTEXT pContext;
6477	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6478	AssertRCReturn(rc, rc);
6479
6480	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6481
6482	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6483	if (type == SVGA3D_SHADERTYPE_VS)
6484	{
6485	if (shid >= pContext->cVertexShaders)
6486	{
6487	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6488	AssertReturn(pvNew, VERR_NO_MEMORY);
6489	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6490	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6491	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6492	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6493	pContext->cVertexShaders = shid + 1;
6494	}
6495	/* If one already exists with this id, then destroy it now. */
6496	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6497	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6498
6499	pShader = &pContext->paVertexShader[shid];
6500	}
6501	else
6502	{
6503	Assert(type == SVGA3D_SHADERTYPE_PS);
6504	if (shid >= pContext->cPixelShaders)
6505	{
6506	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6507	AssertReturn(pvNew, VERR_NO_MEMORY);
6508	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6509	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6510	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6511	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6512	pContext->cPixelShaders = shid + 1;
6513	}
6514	/* If one already exists with this id, then destroy it now. */
6515	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6516	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6517
6518	pShader = &pContext->paPixelShader[shid];
6519	}
6520
6521	memset(pShader, 0, sizeof(*pShader));
6522	pShader->id = shid;
6523	pShader->cid = cid;
6524	pShader->type = type;
6525	pShader->cbData = cbData;
6526	pShader->pShaderProgram = RTMemAllocZ(cbData);
6527	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6528	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6529
6530	#ifdef DUMP_SHADER_DISASSEMBLY
6531	LPD3DXBUFFER pDisassembly;
6532	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6533	if (hr == D3D_OK)
6534	{
6535	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6536	pDisassembly->Release();
6537	}
6538	#endif
6539
6540	switch (type)
6541	{
6542	case SVGA3D_SHADERTYPE_VS:
6543	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6544	AssertRC(rc);
6545	break;
6546
6547	case SVGA3D_SHADERTYPE_PS:
6548	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6549	AssertRC(rc);
6550	break;
6551
6552	default:
6553	AssertFailedReturn(VERR_INVALID_PARAMETER);
6554	}
6555	if (rc != VINF_SUCCESS)
6556	{
6557	RTMemFree(pShader->pShaderProgram);
6558	memset(pShader, 0, sizeof(*pShader));
6559	pShader->id = SVGA3D_INVALID_ID;
6560	}
6561
6562	return rc;
6563	}
6564
6565	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6566	{
6567	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6568	AssertReturn(pState, VERR_NO_MEMORY);
6569	PVMSVGA3DSHADER pShader = NULL;
6570
6571	Log(("vmsvga3dShaderDestroy cid=%u shid=%d type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6572
6573	PVMSVGA3DCONTEXT pContext;
6574	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6575	AssertRCReturn(rc, rc);
6576
6577	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6578
6579	if (type == SVGA3D_SHADERTYPE_VS)
6580	{
6581	if ( shid < pContext->cVertexShaders
6582	&& pContext->paVertexShader[shid].id == shid)
6583	{
6584	pShader = &pContext->paVertexShader[shid];
6585	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6586	AssertRC(rc);
6587	}
6588	}
6589	else
6590	{
6591	Assert(type == SVGA3D_SHADERTYPE_PS);
6592	if ( shid < pContext->cPixelShaders
6593	&& pContext->paPixelShader[shid].id == shid)
6594	{
6595	pShader = &pContext->paPixelShader[shid];
6596	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6597	AssertRC(rc);
6598	}
6599	}
6600
6601	if (pShader)
6602	{
6603	if (pShader->pShaderProgram)
6604	RTMemFree(pShader->pShaderProgram);
6605	memset(pShader, 0, sizeof(*pShader));
6606	pShader->id = SVGA3D_INVALID_ID;
6607	}
6608	else
6609	AssertFailedReturn(VERR_INVALID_PARAMETER);
6610
6611	return VINF_SUCCESS;
6612	}
6613
6614	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6615	{
6616	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6617	AssertReturn(pState, VERR_NO_MEMORY);
6618	int rc;
6619
6620	Log(("vmsvga3dShaderSet cid=%u type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6621
6622	if (!pContext)
6623	{
6624	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6625	AssertRCReturn(rc, rc);
6626	}
6627
6628	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6629
6630	if (type == SVGA3D_SHADERTYPE_VS)
6631	{
6632	/* Save for vm state save/restore. */
6633	pContext->state.shidVertex = shid;
6634	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6635
6636	if ( shid < pContext->cVertexShaders
6637	&& pContext->paVertexShader[shid].id == shid)
6638	{
6639	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6640	Assert(type == pShader->type);
6641
6642	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6643	AssertRCReturn(rc, rc);
6644	}
6645	else
6646	if (shid == SVGA_ID_INVALID)
6647	{
6648	/* Unselect shader. */
6649	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6650	AssertRCReturn(rc, rc);
6651	}
6652	else
6653	AssertFailedReturn(VERR_INVALID_PARAMETER);
6654	}
6655	else
6656	{
6657	/* Save for vm state save/restore. */
6658	pContext->state.shidPixel = shid;
6659	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6660
6661	Assert(type == SVGA3D_SHADERTYPE_PS);
6662	if ( shid < pContext->cPixelShaders
6663	&& pContext->paPixelShader[shid].id == shid)
6664	{
6665	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6666	Assert(type == pShader->type);
6667
6668	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6669	AssertRCReturn(rc, rc);
6670	}
6671	else
6672	if (shid == SVGA_ID_INVALID)
6673	{
6674	/* Unselect shader. */
6675	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6676	AssertRCReturn(rc, rc);
6677	}
6678	else
6679	AssertFailedReturn(VERR_INVALID_PARAMETER);
6680	}
6681
6682	return VINF_SUCCESS;
6683	}
6684
6685	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6686	{
6687	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6688	AssertReturn(pState, VERR_NO_MEMORY);
6689
6690	Log(("vmsvga3dShaderSetConst cid=%u reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6691
6692	PVMSVGA3DCONTEXT pContext;
6693	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6694	AssertRCReturn(rc, rc);
6695
6696	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6697
6698	for (uint32_t i = 0; i < cRegisters; i++)
6699	{
6700	#ifdef LOG_ENABLED
6701	switch (ctype)
6702	{
6703	case SVGA3D_CONST_TYPE_FLOAT:
6704	{
6705	float pValuesF = (float )pValues;
6706	Log(("ConstantF %d: value=" FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR "\n",
6707	reg + i, FLOAT_FMT_ARGS(pValuesF[i4 + 0]), FLOAT_FMT_ARGS(pValuesF[i4 + 1]), FLOAT_FMT_ARGS(pValuesF[i4 + 2]), FLOAT_FMT_ARGS(pValuesF[i4 + 3])));
6708	break;
6709	}
6710
6711	case SVGA3D_CONST_TYPE_INT:
6712	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6713	break;
6714
6715	case SVGA3D_CONST_TYPE_BOOL:
6716	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6717	break;
6718	}
6719	#endif
6720	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6721	}
6722
6723	switch (type)
6724	{
6725	case SVGA3D_SHADERTYPE_VS:
6726	switch (ctype)
6727	{
6728	case SVGA3D_CONST_TYPE_FLOAT:
6729	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6730	break;
6731
6732	case SVGA3D_CONST_TYPE_INT:
6733	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6734	break;
6735
6736	case SVGA3D_CONST_TYPE_BOOL:
6737	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6738	break;
6739
6740	default:
6741	AssertFailedReturn(VERR_INVALID_PARAMETER);
6742	}
6743	AssertRCReturn(rc, rc);
6744	break;
6745
6746	case SVGA3D_SHADERTYPE_PS:
6747	switch (ctype)
6748	{
6749	case SVGA3D_CONST_TYPE_FLOAT:
6750	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6751	break;
6752
6753	case SVGA3D_CONST_TYPE_INT:
6754	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6755	break;
6756
6757	case SVGA3D_CONST_TYPE_BOOL:
6758	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6759	break;
6760
6761	default:
6762	AssertFailedReturn(VERR_INVALID_PARAMETER);
6763	}
6764	AssertRCReturn(rc, rc);
6765	break;
6766
6767	default:
6768	AssertFailedReturn(VERR_INVALID_PARAMETER);
6769	}
6770
6771	return VINF_SUCCESS;
6772	}
6773
6774	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6775	{
6776	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6777	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6778
6779	GLuint idQuery = 0;
6780	pState->ext.glGenQueries(1, &idQuery);
6781	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6782	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6783	pContext->occlusion.idQuery = idQuery;
6784	return VINF_SUCCESS;
6785	}
6786
6787	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6788	{
6789	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6790	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6791
6792	if (pContext->occlusion.idQuery)
6793	{
6794	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6795	}
6796	return VINF_SUCCESS;
6797	}
6798
6799	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6800	{
6801	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6802	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6803
6804	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6805	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6806	return VINF_SUCCESS;
6807	}
6808
6809	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6810	{
6811	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6812	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6813
6814	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6816	return VINF_SUCCESS;
6817	}
6818
6819	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6820	{
6821	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6822	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6823
6824	GLuint pixels = 0;
6825	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6827
6828	*pu32Pixels = (uint32_t)pixels;
6829	return VINF_SUCCESS;
6830	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 82090

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