DevVGA-SVGA3d-ogl.cpp@ 74549

Last change on this file since 74549 was 74549, checked in by vboxsync, 6 years ago
DevVGA-SVGA: further cleanup of context windows creation (Windows host only); removed obsolete debug code.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 249.5 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 74549 2018-10-01 11:56:56Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS MyWinGetProcAddress
68	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
69	{
70	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
71	PROC p = wglGetProcAddress(pszSymbol);
72	if (RT_VALID_PTR(p))
73	return p;
74	return 0;
75	}
76	#elif defined(RT_OS_DARWIN)
77	# include <dlfcn.h>
78	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
79	/** Resolves an OpenGL symbol. */
80	static void MyNSGLGetProcAddress(const char pszSymbol)
81	{
82	/* Another copy in shaderapi.c. */
83	static void *s_pvImage = NULL;
84	if (s_pvImage == NULL)
85	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
86	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
87	}
88
89	#else
90	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
91	#endif
92
93	/* Invert y-coordinate for OpenGL's bottom left origin. */
94	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
95	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
96
97	/**
98	* Macro for doing something and then checking for errors during initialization.
99	* Uses AssertLogRelMsg.
100	*/
101	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
102	do \
103	{ \
104	a_Expr; \
105	GLenum iGlError = glGetError(); \
106	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
107	} while (0)
108
109	/**
110	* Macro for doing something and then checking for errors during initialization,
111	* doing the same in the other context when enabled.
112	*
113	* This will try both profiles in dual profile builds. Caller must be in the
114	* default context.
115	*
116	* Uses AssertLogRelMsg to indicate trouble.
117	*/
118	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
119	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
120	do \
121	{ \
122	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
123	a_Expr; \
124	GLenum iGlError = glGetError(); \
125	if (iGlError != GL_NO_ERROR) \
126	{ \
127	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
128	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
129	a_Expr; \
130	GLenum iGlError2 = glGetError(); \
131	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
132	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
133	} \
134	} while (0)
135	#else
136	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
137	#endif
138
139
140	/*********************************************************************************************************************************
141	* Global Variables *
142	*********************************************************************************************************************************/
143	/* Define the default light parameters as specified by MSDN. */
144	/** @todo move out; fetched from Wine */
145	const SVGA3dLightData vmsvga3d_default_light =
146	{
147	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
148	false, /* inWorldSpace */
149	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
150	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
151	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
152	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
153	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
154	0.0f, /* range */
155	0.0f, /* falloff */
156	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
157	0.0f, /* theta */
158	0.0f /* phi */
159	};
160
161
162	/*********************************************************************************************************************************
163	* Internal Functions *
164	*********************************************************************************************************************************/
165	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
166	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
167
168	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
169	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
170
171
172	/**
173	* Checks if the given OpenGL extension is supported.
174	*
175	* @returns true if supported, false if not.
176	* @param pState The VMSVGA3d state.
177	* @param rsMinGLVersion The OpenGL version that introduced this feature
178	* into the core.
179	* @param pszWantedExtension The name of the OpenGL extension we want padded
180	* with one space at each end.
181	* @remarks Init time only.
182	*/
183	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
184	{
185	RT_NOREF(rsMinGLVersion);
186	/* check padding. */
187	Assert(pszWantedExtension[0] == ' ');
188	Assert(pszWantedExtension[1] != ' ');
189	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
190
191	/* Look it up. */
192	bool fRet = false;
193	if (strstr(pState->pszExtensions, pszWantedExtension))
194	fRet = true;
195
196	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
197	#ifdef RT_OS_DARWIN
198	AssertMsg( rsMinGLVersion == 0.0
199	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
200	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
201	("%s actual:%d min:%d fRet=%d\n",
202	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
203	#else
204	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
205	("%s actual:%d min:%d fRet=%d\n",
206	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
207	#endif
208	return fRet;
209	}
210
211
212	/**
213	* Outputs GL_EXTENSIONS list to the release log.
214	*/
215	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
216	{
217	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
218	bool fBuffered = RTLogRelSetBuffering(true);
219
220	/*
221	* Determin the column widths first.
222	*/
223	size_t acchWidths[4] = { 1, 1, 1, 1 };
224	uint32_t i;
225	const char *psz = pszExtensions;
226	for (i = 0; ; i++)
227	{
228	while (*psz == ' ')
229	psz++;
230	if (!*psz)
231	break;
232
233	const char *pszEnd = strchr(psz, ' ');
234	AssertBreak(pszEnd);
235	size_t cch = pszEnd - psz;
236
237	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
238	if (acchWidths[iColumn] < cch)
239	acchWidths[iColumn] = cch;
240
241	psz = pszEnd;
242	}
243
244	/*
245	* Output it.
246	*/
247	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
248	psz = pszExtensions;
249	for (i = 0; ; i++)
250	{
251	while (*psz == ' ')
252	psz++;
253	if (!*psz)
254	break;
255
256	const char *pszEnd = strchr(psz, ' ');
257	AssertBreak(pszEnd);
258	size_t cch = pszEnd - psz;
259
260	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
261	if (iColumn == 0)
262	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
263	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
264	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
265	else
266	LogRel((" %.*s", cch, psz));
267
268	psz = pszEnd;
269	}
270
271	RTLogRelSetBuffering(fBuffered);
272	LogRel(("\n"));
273	}
274
275	/**
276	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
277	* @a ppszExtensions.
278	*
279	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
280	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
281	* @param fGLProfileVersion The OpenGL profile version.
282	*/
283	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
284	{
285	int rc;
286	*ppszExtensions = NULL;
287
288	/*
289	* Try the old glGetString interface first.
290	*/
291	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
292	if (pszExtensions)
293	{
294	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
295	AssertLogRelRCReturn(rc, rc);
296	}
297	else
298	{
299	/*
300	* The new interface where each extension string is retrieved separately.
301	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
302	* the above GL_EXTENSIONS error lingers on darwin. sucks.
303	*/
304	#ifndef GL_NUM_EXTENSIONS
305	# define GL_NUM_EXTENSIONS 0x821D
306	#endif
307	GLint cExtensions = 1024;
308	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
309	Assert(cExtensions != 1024);
310
311	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
312	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
313
314	rc = RTStrAAppend(ppszExtensions, " ");
315	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
316	{
317	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
318	if (pszExt)
319	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
320	}
321	AssertRCReturn(rc, rc);
322	}
323
324	#if 1
325	/*
326	* Add extensions promoted into the core OpenGL profile.
327	*/
328	static const struct
329	{
330	float fGLVersion;
331	const char *pszzExtensions;
332	} s_aPromotedExtensions[] =
333	{
334	{
335	1.1f,
336	" GL_EXT_vertex_array \0"
337	" GL_EXT_polygon_offset \0"
338	" GL_EXT_blend_logic_op \0"
339	" GL_EXT_texture \0"
340	" GL_EXT_copy_texture \0"
341	" GL_EXT_subtexture \0"
342	" GL_EXT_texture_object \0"
343	" GL_ARB_framebuffer_object \0"
344	" GL_ARB_map_buffer_range \0"
345	" GL_ARB_vertex_array_object \0"
346	"\0"
347	},
348	{
349	1.2f,
350	" EXT_texture3D \0"
351	" EXT_bgra \0"
352	" EXT_packed_pixels \0"
353	" EXT_rescale_normal \0"
354	" EXT_separate_specular_color \0"
355	" SGIS_texture_edge_clamp \0"
356	" SGIS_texture_lod \0"
357	" EXT_draw_range_elements \0"
358	"\0"
359	},
360	{
361	1.3f,
362	" GL_ARB_texture_compression \0"
363	" GL_ARB_texture_cube_map \0"
364	" GL_ARB_multisample \0"
365	" GL_ARB_multitexture \0"
366	" GL_ARB_texture_env_add \0"
367	" GL_ARB_texture_env_combine \0"
368	" GL_ARB_texture_env_dot3 \0"
369	" GL_ARB_texture_border_clamp \0"
370	" GL_ARB_transpose_matrix \0"
371	"\0"
372	},
373	{
374	1.5f,
375	" GL_SGIS_generate_mipmap \0"
376	/" GL_NV_blend_equare \0"/
377	" GL_ARB_depth_texture \0"
378	" GL_ARB_shadow \0"
379	" GL_EXT_fog_coord \0"
380	" GL_EXT_multi_draw_arrays \0"
381	" GL_ARB_point_parameters \0"
382	" GL_EXT_secondary_color \0"
383	" GL_EXT_blend_func_separate \0"
384	" GL_EXT_stencil_wrap \0"
385	" GL_ARB_texture_env_crossbar \0"
386	" GL_EXT_texture_lod_bias \0"
387	" GL_ARB_texture_mirrored_repeat \0"
388	" GL_ARB_window_pos \0"
389	"\0"
390	},
391	{
392	1.6f,
393	" GL_ARB_vertex_buffer_object \0"
394	" GL_ARB_occlusion_query \0"
395	" GL_EXT_shadow_funcs \0"
396	},
397	{
398	2.0f,
399	" GL_ARB_shader_objects \0" /??/
400	" GL_ARB_vertex_shader \0" /??/
401	" GL_ARB_fragment_shader \0" /??/
402	" GL_ARB_shading_language_100 \0" /??/
403	" GL_ARB_draw_buffers \0"
404	" GL_ARB_texture_non_power_of_two \0"
405	" GL_ARB_point_sprite \0"
406	" GL_ATI_separate_stencil \0"
407	" GL_EXT_stencil_two_side \0"
408	"\0"
409	},
410	{
411	2.1f,
412	" GL_ARB_pixel_buffer_object \0"
413	" GL_EXT_texture_sRGB \0"
414	"\0"
415	},
416	{
417	3.0f,
418	" GL_ARB_framebuffer_object \0"
419	" GL_ARB_map_buffer_range \0"
420	" GL_ARB_vertex_array_object \0"
421	"\0"
422	},
423	{
424	3.1f,
425	" GL_ARB_copy_buffer \0"
426	" GL_ARB_uniform_buffer_object \0"
427	"\0"
428	},
429	{
430	3.2f,
431	" GL_ARB_vertex_array_bgra \0"
432	" GL_ARB_draw_elements_base_vertex \0"
433	" GL_ARB_fragment_coord_conventions \0"
434	" GL_ARB_provoking_vertex \0"
435	" GL_ARB_seamless_cube_map \0"
436	" GL_ARB_texture_multisample \0"
437	" GL_ARB_depth_clamp \0"
438	" GL_ARB_sync \0"
439	" GL_ARB_geometry_shader4 \0" /??/
440	"\0"
441	},
442	{
443	3.3f,
444	" GL_ARB_blend_func_extended \0"
445	" GL_ARB_sampler_objects \0"
446	" GL_ARB_explicit_attrib_location \0"
447	" GL_ARB_occlusion_query2 \0"
448	" GL_ARB_shader_bit_encoding \0"
449	" GL_ARB_texture_rgb10_a2ui \0"
450	" GL_ARB_texture_swizzle \0"
451	" GL_ARB_timer_query \0"
452	" GL_ARB_vertex_type_2_10_10_10_rev \0"
453	"\0"
454	},
455	{
456	4.0f,
457	" GL_ARB_texture_query_lod \0"
458	" GL_ARB_draw_indirect \0"
459	" GL_ARB_gpu_shader5 \0"
460	" GL_ARB_gpu_shader_fp64 \0"
461	" GL_ARB_shader_subroutine \0"
462	" GL_ARB_tessellation_shader \0"
463	" GL_ARB_texture_buffer_object_rgb32 \0"
464	" GL_ARB_texture_cube_map_array \0"
465	" GL_ARB_texture_gather \0"
466	" GL_ARB_transform_feedback2 \0"
467	" GL_ARB_transform_feedback3 \0"
468	"\0"
469	},
470	{
471	4.1f,
472	" GL_ARB_ES2_compatibility \0"
473	" GL_ARB_get_program_binary \0"
474	" GL_ARB_separate_shader_objects \0"
475	" GL_ARB_shader_precision \0"
476	" GL_ARB_vertex_attrib_64bit \0"
477	" GL_ARB_viewport_array \0"
478	"\0"
479	}
480	};
481
482	uint32_t cPromoted = 0;
483	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
484	{
485	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
486	while (*pszExt)
487	{
488	# ifdef VBOX_STRICT
489	size_t cchExt = strlen(pszExt);
490	Assert(cchExt > 3);
491	Assert(pszExt[0] == ' ');
492	Assert(pszExt[1] != ' ');
493	Assert(pszExt[cchExt - 2] != ' ');
494	Assert(pszExt[cchExt - 1] == ' ');
495	# endif
496
497	if (strstr(*ppszExtensions, pszExt) == NULL)
498	{
499	if (cPromoted++ == 0)
500	{
501	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
502	AssertRCReturn(rc, rc);
503	}
504
505	rc = RTStrAAppend(ppszExtensions, pszExt);
506	AssertRCReturn(rc, rc);
507	}
508
509	pszExt = strchr(pszExt, '\0') + 1;
510	}
511	}
512	#endif
513
514	return VINF_SUCCESS;
515	}
516
517	/** Check whether this is an Intel GL driver.
518	*
519	* @returns true if this seems to be some Intel graphics.
520	*/
521	static bool vmsvga3dIsVendorIntel(void)
522	{
523	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
524	}
525
526	/**
527	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
528	*/
529	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
530	{
531	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
532	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
533	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
534	#else
535	NOREF(pThis);
536	NOREF(fOtherProfile);
537	#endif
538	}
539
540
541	/**
542	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
543	*/
544	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
545	char *pszBuf, size_t cbBuf, bool fOtherProfile)
546	{
547	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
548	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
549	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
550	while (*pszCur == ' ')
551	pszCur++;
552	if (!*pszCur)
553	return false;
554
555	const char *pszEnd = strchr(pszCur, ' ');
556	AssertReturn(pszEnd, false);
557	size_t cch = pszEnd - pszCur;
558	if (cch < cbBuf)
559	{
560	memcpy(pszBuf, pszCur, cch);
561	pszBuf[cch] = '\0';
562	}
563	else if (cbBuf > 0)
564	{
565	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
566	pszBuf[cbBuf - 1] = '\0';
567	}
568
569	ppvEnumCtx = (void )pszEnd;
570	return true;
571	}
572
573
574	/**
575	* Initializes the VMSVGA3D state during VGA device construction.
576	*
577	* Failure are generally not fatal, 3D support will just be disabled.
578	*
579	* @returns VBox status code.
580	* @param pThis The VGA device state where svga.p3dState will be modified.
581	*/
582	int vmsvga3dInit(PVGASTATE pThis)
583	{
584	AssertCompile(GL_TRUE == 1);
585	AssertCompile(GL_FALSE == 0);
586
587	/*
588	* Load and resolve imports from the external shared libraries.
589	*/
590	RTERRINFOSTATIC ErrInfo;
591	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
592	if (RT_FAILURE(rc))
593	{
594	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
595	return rc;
596	}
597	#ifdef RT_OS_DARWIN
598	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
599	if (RT_FAILURE(rc))
600	{
601	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
602	return rc;
603	}
604	#endif
605
606	/*
607	* Allocate the state.
608	*/
609	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
610	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
611
612	#ifdef RT_OS_WINDOWS
613	/* Create event semaphore and async IO thread. */
614	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
615	rc = RTSemEventCreate(&pState->WndRequestSem);
616	if (RT_SUCCESS(rc))
617	{
618	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
619	"VMSVGA3DWND");
620	if (RT_SUCCESS(rc))
621	return VINF_SUCCESS;
622
623	/* bail out. */
624	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
625	RTSemEventDestroy(pState->WndRequestSem);
626	}
627	else
628	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
629	RTMemFree(pThis->svga.p3dState);
630	pThis->svga.p3dState = NULL;
631	return rc;
632	#else
633	return VINF_SUCCESS;
634	#endif
635	}
636
637	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
638	{
639	/* A strict approach to get a proc address as recommended by Khronos:
640	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
641	* - "If the function is an extension, we need to check to see if the extension is supported."
642	*/
643
644	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
645	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
646	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
647	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
648	} while(0)
649
650	/* Get an optional function address. LogRel on failure. */
651	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
652	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
653	if (!pState->ext.ProcName) \
654	{ \
655	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
656	AssertFailed(); \
657	} \
658	} while(0)
659
660	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
661	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
662	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
663	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
664	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
665	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
666	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
667	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
668	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
669	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
670	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
671	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
672	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
673	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
674	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
675	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
676	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
677	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
678	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
679	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
680	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
681	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
682	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
683	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
684	/* glGetProgramivARB determines implementation limits for the program
685	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
686	* It differs from glGetProgramiv, which returns a parameter from a program object.
687	*/
688	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
689	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
690	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
691	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
692	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
693	#endif
694	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
695	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
696	#endif
697
698	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
699	if ( pState->rsGLVersion >= 3.0f
700	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
701	{
702	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
703	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
704	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
705	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
706	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
707	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
708	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
709	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
710	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
711	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
712	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
713	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
714	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
715	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
716	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
717	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
718	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
719	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
720	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
721	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
722	}
723
724	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
725	if (pState->rsGLVersion >= 3.1f)
726	{
727	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
728	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
729	}
730	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
731	{
732	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
733	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
734	}
735	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
736	{
737	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
738	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
739	}
740
741	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
742	if ( pState->rsGLVersion >= 3.2f
743	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
744	{
745	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
746	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
747	}
748
749	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
750	if ( pState->rsGLVersion >= 3.2f
751	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
752	{
753	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
754	}
755
756	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
757	if (pState->rsGLVersion >= 3.3f)
758	{
759	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
760	}
761	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
762	{
763	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
764	}
765
766	#undef GLGETPROCOPT_
767	#undef GLGETPROC_
768
769	return VINF_SUCCESS;
770	}
771
772
773	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
774	int vmsvga3dPowerOn(PVGASTATE pThis)
775	{
776	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
777	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
778	PVMSVGA3DCONTEXT pContext;
779	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
780	PVMSVGA3DCONTEXT pOtherCtx;
781	#endif
782	int rc;
783
784	if (pState->rsGLVersion != 0.0)
785	return VINF_SUCCESS; /* already initialized (load state) */
786
787	/*
788	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
789	*/
790	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
791	AssertRCReturn(rc, rc);
792
793	pContext = pState->papContexts[1];
794	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
795
796	LogRel(("VMSVGA3d: OpenGL version: %s\n"
797	"VMSVGA3d: OpenGL Vendor: %s\n"
798	"VMSVGA3d: OpenGL Renderer: %s\n"
799	"VMSVGA3d: OpenGL shader language version: %s\n",
800	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
801	glGetString(GL_SHADING_LANGUAGE_VERSION)));
802
803	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
804	AssertRCReturn(rc, rc);
805	vmsvga3dLogRelExtensions("", pState->pszExtensions);
806
807	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
808
809
810	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
811	/*
812	* Get the extension list for the alternative profile so we can better
813	* figure out the shader model and stuff.
814	*/
815	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
816	AssertLogRelRCReturn(rc, rc);
817	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
818
819	pOtherCtx = pState->papContexts[2];
820	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
821
822	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
823	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
824	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
825	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
826	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
827	glGetString(GL_SHADING_LANGUAGE_VERSION)));
828
829	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
830	AssertRCReturn(rc, rc);
831	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
832
833	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
834
835	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
836	#else
837	pState->pszOtherExtensions = (char *)"";
838	pState->rsOtherGLVersion = pState->rsGLVersion;
839	#endif
840
841	/*
842	* Resolve GL function pointers and store them in pState->ext.
843	*/
844	rc = vmsvga3dLoadGLFunctions(pState);
845	if (RT_FAILURE(rc))
846	{
847	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
848	return rc;
849	}
850
851	/*
852	* Initialize the capabilities with sensible defaults.
853	*/
854	pState->caps.maxActiveLights = 1;
855	pState->caps.maxTextureBufferSize = 65536;
856	pState->caps.maxTextures = 1;
857	pState->caps.maxClipDistances = 4;
858	pState->caps.maxColorAttachments = 1;
859	pState->caps.maxRectangleTextureSize = 2048;
860	pState->caps.maxTextureAnisotropy = 2;
861	pState->caps.maxVertexShaderInstructions = 1024;
862	pState->caps.maxFragmentShaderInstructions = 1024;
863	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
864	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
865	pState->caps.flPointSize[0] = 1;
866	pState->caps.flPointSize[1] = 1;
867
868	/*
869	* Query capabilities
870	*/
871	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
872	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
873	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
874	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
875	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
876	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
877	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
878	#else
879	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
880	#endif
881	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
882	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
883	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
884	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
885
886	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
887	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
888	&pState->caps.maxFragmentShaderTemps));
889	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
890	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
891	&pState->caps.maxFragmentShaderInstructions));
892	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
893	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
894	&pState->caps.maxVertexShaderTemps));
895	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
896	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
897	&pState->caps.maxVertexShaderInstructions));
898
899	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
900
901	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
902	* ARB Assembly Language
903	* These are done through testing the presence of extensions. You should test them in this order:
904	* GL_NV_gpu_program4: SM 4.0 or better.
905	* GL_NV_vertex_program3: SM 3.0 or better.
906	* GL_ARB_fragment_program: SM 2.0 or better.
907	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
908	*
909	*/
910	/** @todo distinguish between vertex and pixel shaders??? */
911	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
912	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
913	if (v >= 3.30f)
914	{
915	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
916	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
917	}
918	else
919	if (v >= 1.20f)
920	{
921	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
922	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
923	}
924	else
925	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
926	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
927	{
928	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
929	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
930	}
931	else
932	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
933	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
934	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
935	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
936	)
937	{
938	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
939	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
940	}
941	else
942	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
943	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
944	{
945	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
946	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
947	}
948	else
949	{
950	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
951	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
952	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
953	}
954
955	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
956	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
957	{
958	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
959	}
960
961	/*
962	* Tweak capabilities.
963	*/
964	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
965	if ( pState->caps.maxVertexShaderTemps < 32
966	&& vmsvga3dIsVendorIntel())
967	pState->caps.maxVertexShaderTemps = 32;
968
969	#if 0
970	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
971	SVGA3D_DEVCAP_QUERY_TYPES = 15,
972	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
973	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
974	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
975	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
976	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
977	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
978	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
979	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
980	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
981	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
982	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
983	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
984	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
985	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
986	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
987	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
988	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
989	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
990	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
991	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
992	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
993	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
994	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
995	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
996	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
997	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
998	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
999	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1000	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1001	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1002	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1003	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1004	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1005	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1006	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1007	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1008	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1009	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1010	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1011	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1012	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1013	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1014	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1015	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1016	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1017	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1018	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1019	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1020	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1021	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1022	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1023	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1024	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1025	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1026	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1027	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1028	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1029	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1030	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1031	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1032	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1033	#endif
1034
1035	LogRel(("VMSVGA3d: Capabilities:\n"));
1036	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1037	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1038	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1039	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1040	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1041	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1042	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1043	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1044	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1045	pState->caps.maxFragmentShaderTemps,
1046	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1047	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1048	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1049	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1050
1051
1052	/* Initialize the shader library. */
1053	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1054	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1055	rc = ShaderInitLib(&pState->ShaderIf);
1056	AssertRC(rc);
1057
1058	/* Cleanup */
1059	rc = vmsvga3dContextDestroy(pThis, 1);
1060	AssertRC(rc);
1061	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1062	rc = vmsvga3dContextDestroy(pThis, 2);
1063	AssertRC(rc);
1064	#endif
1065
1066	if ( pState->rsGLVersion < 3.0
1067	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1068	{
1069	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1070	return VERR_NOT_IMPLEMENTED;
1071	}
1072
1073	return VINF_SUCCESS;
1074	}
1075
1076	int vmsvga3dReset(PVGASTATE pThis)
1077	{
1078	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1079	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1080
1081	/* Destroy all leftover surfaces. */
1082	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1083	{
1084	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1085	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1086	}
1087
1088	/* Destroy all leftover contexts. */
1089	for (uint32_t i = 0; i < pState->cContexts; i++)
1090	{
1091	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1092	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1093	}
1094
1095	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1096	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1097
1098	return VINF_SUCCESS;
1099	}
1100
1101	int vmsvga3dTerminate(PVGASTATE pThis)
1102	{
1103	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1104	AssertReturn(pState, VERR_WRONG_ORDER);
1105	int rc;
1106
1107	rc = vmsvga3dReset(pThis);
1108	AssertRCReturn(rc, rc);
1109
1110	/* Terminate the shader library. */
1111	rc = ShaderDestroyLib();
1112	AssertRC(rc);
1113
1114	#ifdef RT_OS_WINDOWS
1115	/* Terminate the window creation thread. */
1116	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1117	AssertRCReturn(rc, rc);
1118
1119	RTSemEventDestroy(pState->WndRequestSem);
1120	#elif defined(RT_OS_DARWIN)
1121
1122	#elif defined(RT_OS_LINUX)
1123	/* signal to the thread that it is supposed to exit */
1124	pState->bTerminate = true;
1125	/* wait for it to terminate */
1126	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1127	AssertRC(rc);
1128	XCloseDisplay(pState->display);
1129	#endif
1130
1131	RTStrFree(pState->pszExtensions);
1132	pState->pszExtensions = NULL;
1133	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1134	RTStrFree(pState->pszOtherExtensions);
1135	#endif
1136	pState->pszOtherExtensions = NULL;
1137
1138	return VINF_SUCCESS;
1139	}
1140
1141
1142	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1143	{
1144	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1145	* redraw it. */
1146
1147	#ifdef RT_OS_DARWIN
1148	RT_NOREF(pOldViewport);
1149	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1150	if ( pState
1151	&& idScreen == 0
1152	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1153	{
1154	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1155	}
1156	#else
1157	RT_NOREF(pThis, idScreen, pOldViewport);
1158	#endif
1159	}
1160
1161
1162	/**
1163	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1164	* given surface format capability.
1165	*
1166	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1167	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1168	*
1169	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1170	* of implicit guest expectations:
1171	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1172	*/
1173	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1174	{
1175	uint32_t result = 0;
1176
1177	/** @todo missing:
1178	*
1179	* SVGA3DFORMAT_OP_PIXELSIZE
1180	*/
1181
1182	switch (idx3dCaps)
1183	{
1184	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1185	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1186	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1187	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1188	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1189	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1190	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1191	break;
1192
1193	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1194	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1195	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1196	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1197	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1198	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1199	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1200	break;
1201	}
1202
1203	/** @todo check hardware caps! */
1204	switch (idx3dCaps)
1205	{
1206	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1207	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1208	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1209	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1210	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1211	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1212	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1213	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1214	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1215	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1216	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1217	result \|= SVGA3DFORMAT_OP_TEXTURE
1218	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1219	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1220	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1221	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1222	\| SVGA3DFORMAT_OP_CUBETEXTURE
1223	\| SVGA3DFORMAT_OP_SRGBREAD
1224	\| SVGA3DFORMAT_OP_SRGBWRITE;
1225	break;
1226
1227	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1228	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1229	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1230	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1231	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1232	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1233	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1234	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1235	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1236	break;
1237
1238	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1239	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1240	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1241	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1242	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1243	result \|= SVGA3DFORMAT_OP_TEXTURE
1244	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1245	\| SVGA3DFORMAT_OP_CUBETEXTURE
1246	\| SVGA3DFORMAT_OP_SRGBREAD;
1247	break;
1248
1249	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1250	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1251	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1252	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1253	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1254	break;
1255
1256	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1257	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1258	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1259	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1260	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1261	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1262	result \|= SVGA3DFORMAT_OP_TEXTURE
1263	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1264	\| SVGA3DFORMAT_OP_CUBETEXTURE
1265	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1266	break;
1267
1268	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1269	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1270	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1271	result \|= SVGA3DFORMAT_OP_TEXTURE
1272	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1273	\| SVGA3DFORMAT_OP_CUBETEXTURE
1274	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1275	break;
1276
1277	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1278	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1279	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1280	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1281	break;
1282	}
1283	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1284
1285	return result;
1286	}
1287
1288	#if 0 /* unused */
1289	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1290	{
1291	RT_NOREF(pState3D, idx3dCaps);
1292
1293	/** @todo test this somehow */
1294	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1295
1296	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1297	return result;
1298	}
1299	#endif
1300
1301
1302	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1303	{
1304	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1305	AssertReturn(pState, VERR_NO_MEMORY);
1306	int rc = VINF_SUCCESS;
1307
1308	*pu32Val = 0;
1309
1310	/*
1311	* The capabilities access by current (2015-03-01) linux sources (gallium,
1312	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1313	* aren't access.
1314	*/
1315
1316	switch (idx3dCaps)
1317	{
1318	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1319	case SVGA3D_DEVCAP_3D:
1320	pu32Val = 1; / boolean? */
1321	break;
1322
1323	case SVGA3D_DEVCAP_MAX_LIGHTS:
1324	*pu32Val = pState->caps.maxActiveLights;
1325	break;
1326
1327	case SVGA3D_DEVCAP_MAX_TEXTURES:
1328	*pu32Val = pState->caps.maxTextures;
1329	break;
1330
1331	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1332	*pu32Val = pState->caps.maxClipDistances;
1333	break;
1334
1335	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1336	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1337	*pu32Val = pState->caps.vertexShaderVersion;
1338	break;
1339
1340	case SVGA3D_DEVCAP_VERTEX_SHADER:
1341	/* boolean? */
1342	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1343	break;
1344
1345	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1346	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1347	*pu32Val = pState->caps.fragmentShaderVersion;
1348	break;
1349
1350	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1351	/* boolean? */
1352	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1353	break;
1354
1355	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1356	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1357	/* Must be obsolete by now; surface format caps specify the same thing. */
1358	rc = VERR_INVALID_PARAMETER;
1359	break;
1360
1361	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1362	break;
1363
1364	/*
1365	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1366	* return TRUE. Even on physical hardware that does not support
1367	* these formats natively, the SVGA3D device will provide an emulation
1368	* which should be invisible to the guest OS.
1369	*/
1370	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1371	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1372	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1373	*pu32Val = 1;
1374	break;
1375
1376	case SVGA3D_DEVCAP_QUERY_TYPES:
1377	break;
1378
1379	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1380	break;
1381
1382	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1383	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1384	AssertCompile(sizeof(uint32_t) == sizeof(float));
1385	(float )pu32Val = pState->caps.flPointSize[1];
1386	break;
1387
1388	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1389	/** @todo ?? */
1390	rc = VERR_INVALID_PARAMETER;
1391	break;
1392
1393	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1394	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1395	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1396	*pu32Val = pState->caps.maxRectangleTextureSize;
1397	break;
1398
1399	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1400	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1401	//*pu32Val = pCaps->MaxVolumeExtent;
1402	*pu32Val = 256;
1403	break;
1404
1405	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1406	pu32Val = 32768; / hardcoded in Wine */
1407	break;
1408
1409	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1410	//*pu32Val = pCaps->MaxTextureAspectRatio;
1411	break;
1412
1413	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1414	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1415	*pu32Val = pState->caps.maxTextureAnisotropy;
1416	break;
1417
1418	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1419	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1420	pu32Val = 0xFFFFF; / hardcoded in Wine */
1421	break;
1422
1423	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1424	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1425	*pu32Val = pState->caps.maxVertexShaderInstructions;
1426	break;
1427
1428	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1429	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1430	break;
1431
1432	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1433	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1434	*pu32Val = pState->caps.maxVertexShaderTemps;
1435	break;
1436
1437	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1438	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1439	*pu32Val = pState->caps.maxFragmentShaderTemps;
1440	break;
1441
1442	case SVGA3D_DEVCAP_TEXTURE_OPS:
1443	break;
1444
1445	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1446	break;
1447
1448	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1449	break;
1450
1451	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1452	break;
1453
1454	case SVGA3D_DEVCAP_SUPERSAMPLE:
1455	break;
1456
1457	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1458	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1459	break;
1460
1461	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1462	break;
1463
1464	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1465	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1466	*pu32Val = pState->caps.maxColorAttachments;
1467	break;
1468
1469	/*
1470	* This is the maximum number of SVGA context IDs that the guest
1471	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1472	*/
1473	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1474	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1475	break;
1476
1477	/*
1478	* This is the maximum number of SVGA surface IDs that the guest
1479	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1480	*/
1481	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1482	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1483	break;
1484
1485	#if 0 /* Appeared more recently, not yet implemented. */
1486	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1487	case SVGA3D_DEVCAP_LINE_AA:
1488	break;
1489	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1490	case SVGA3D_DEVCAP_LINE_STIPPLE:
1491	break;
1492	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1493	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1494	break;
1495	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1496	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1497	break;
1498	#endif
1499
1500	/*
1501	* Supported surface formats.
1502	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1503	*/
1504	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1505	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1506	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1507	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1508	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1509	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1510	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1511	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1512	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1513	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1514	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1515	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1516	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1517	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1518	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1519	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1520	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1521	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1522	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1523	break;
1524
1525	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1526	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1527	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1528	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1529	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1530	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1531	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1532	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1533	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1534	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1535	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1536	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1537	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1538	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1539	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1540	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1541	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1542	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1543	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1544	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1545	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1546	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1547	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1548	break;
1549
1550	/* Linux: Not referenced in current sources. */
1551	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1552	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1553	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1554	rc = VERR_INVALID_PARAMETER;
1555	*pu32Val = 0;
1556	break;
1557
1558	default:
1559	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1560	rc = VERR_INVALID_PARAMETER;
1561	break;
1562	}
1563
1564	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1565	return rc;
1566	}
1567
1568	/**
1569	* Convert SVGA format value to its OpenGL equivalent
1570	*
1571	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1572	* help from wined3dformat_from_d3dformat().
1573	*/
1574	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1575	{
1576	switch (format)
1577	{
1578	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1579	pSurface->internalFormatGL = GL_RGB8;
1580	pSurface->formatGL = GL_BGRA;
1581	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1582	break;
1583	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1584	pSurface->internalFormatGL = GL_RGBA8;
1585	pSurface->formatGL = GL_BGRA;
1586	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1587	break;
1588	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1589	pSurface->internalFormatGL = GL_RGB5;
1590	pSurface->formatGL = GL_RGB;
1591	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1592	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1593	break;
1594	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1595	pSurface->internalFormatGL = GL_RGB5;
1596	pSurface->formatGL = GL_BGRA;
1597	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1598	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1599	break;
1600	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1601	pSurface->internalFormatGL = GL_RGB5_A1;
1602	pSurface->formatGL = GL_BGRA;
1603	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1604	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1605	break;
1606	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1607	pSurface->internalFormatGL = GL_RGBA4;
1608	pSurface->formatGL = GL_BGRA;
1609	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1610	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1611	break;
1612
1613	case SVGA3D_R8G8B8A8_UNORM:
1614	pSurface->internalFormatGL = GL_RGBA8;
1615	pSurface->formatGL = GL_RGBA;
1616	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1617	break;
1618
1619	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1620	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1621	pSurface->formatGL = GL_DEPTH_COMPONENT;
1622	pSurface->typeGL = GL_UNSIGNED_INT;
1623	break;
1624	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1625	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1626	pSurface->formatGL = GL_DEPTH_COMPONENT;
1627	pSurface->typeGL = GL_UNSIGNED_SHORT;
1628	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1629	break;
1630	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1631	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1632	pSurface->formatGL = GL_DEPTH_STENCIL;
1633	pSurface->typeGL = GL_UNSIGNED_INT;
1634	break;
1635	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1636	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1637	pSurface->formatGL = GL_DEPTH_STENCIL;
1638	pSurface->typeGL = GL_UNSIGNED_SHORT;
1639	/** @todo Wine sources hints at no hw support for this, so test this one! */
1640	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1641	break;
1642	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1643	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1644	pSurface->formatGL = GL_DEPTH_COMPONENT;
1645	pSurface->typeGL = GL_UNSIGNED_INT;
1646	break;
1647
1648	/* Advanced D3D9 depth formats. */
1649	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1650	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1651	pSurface->formatGL = GL_DEPTH_COMPONENT;
1652	pSurface->typeGL = GL_FLOAT;
1653	break;
1654
1655	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1656	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1657	pSurface->formatGL = GL_DEPTH_COMPONENT;
1658	pSurface->typeGL = GL_FLOAT; /* ??? */
1659	break;
1660
1661	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1662	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1663	pSurface->formatGL = GL_DEPTH_STENCIL;
1664	pSurface->typeGL = GL_INT; /* ??? */
1665	break;
1666
1667	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1668	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1669	pSurface->formatGL = GL_RGBA; /* not used */
1670	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1671	break;
1672
1673	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1674	/* "DXT2 and DXT3 are the same from an API perspective." */
1675	RT_FALL_THRU();
1676	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1677	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1678	pSurface->formatGL = GL_RGBA; /* not used */
1679	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1680	break;
1681
1682	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1683	/* "DXT4 and DXT5 are the same from an API perspective." */
1684	RT_FALL_THRU();
1685	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1686	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1687	pSurface->formatGL = GL_RGBA; /* not used */
1688	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1689	break;
1690
1691	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1692	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1693	pSurface->formatGL = GL_LUMINANCE;
1694	pSurface->typeGL = GL_UNSIGNED_BYTE;
1695	break;
1696
1697	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1698	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1699	pSurface->formatGL = GL_LUMINANCE;
1700	pSurface->typeGL = GL_UNSIGNED_SHORT;
1701	break;
1702
1703	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1704	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1705	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1706	pSurface->typeGL = GL_UNSIGNED_BYTE;
1707	break;
1708
1709	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1710	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1711	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1712	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1713	break;
1714
1715	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1716	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1717	pSurface->formatGL = GL_ALPHA;
1718	pSurface->typeGL = GL_UNSIGNED_BYTE;
1719	break;
1720
1721	#if 0
1722
1723	/* Bump-map formats */
1724	case SVGA3D_BUMPU8V8:
1725	return D3DFMT_V8U8;
1726	case SVGA3D_BUMPL6V5U5:
1727	return D3DFMT_L6V5U5;
1728	case SVGA3D_BUMPX8L8V8U8:
1729	return D3DFMT_X8L8V8U8;
1730	case SVGA3D_BUMPL8V8U8:
1731	/* No corresponding D3D9 equivalent. */
1732	AssertFailedReturn(D3DFMT_UNKNOWN);
1733	/* signed bump-map formats */
1734	case SVGA3D_V8U8:
1735	return D3DFMT_V8U8;
1736	case SVGA3D_Q8W8V8U8:
1737	return D3DFMT_Q8W8V8U8;
1738	case SVGA3D_CxV8U8:
1739	return D3DFMT_CxV8U8;
1740	/* mixed bump-map formats */
1741	case SVGA3D_X8L8V8U8:
1742	return D3DFMT_X8L8V8U8;
1743	case SVGA3D_A2W10V10U10:
1744	return D3DFMT_A2W10V10U10;
1745	#endif
1746
1747	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1748	pSurface->internalFormatGL = GL_RGBA16F;
1749	pSurface->formatGL = GL_RGBA;
1750	#if 0 /* bird: wine uses half float, sounds correct to me... */
1751	pSurface->typeGL = GL_FLOAT;
1752	#else
1753	pSurface->typeGL = GL_HALF_FLOAT;
1754	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1755	#endif
1756	break;
1757
1758	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1759	pSurface->internalFormatGL = GL_RGBA32F;
1760	pSurface->formatGL = GL_RGBA;
1761	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1762	break;
1763
1764	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1765	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1766	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1767	pSurface->formatGL = GL_RGBA;
1768	#else
1769	pSurface->formatGL = GL_BGRA;
1770	#endif
1771	pSurface->typeGL = GL_UNSIGNED_INT;
1772	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1773	break;
1774
1775
1776	/* Single- and dual-component floating point formats */
1777	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1778	pSurface->internalFormatGL = GL_R16F;
1779	pSurface->formatGL = GL_RED;
1780	#if 0 /* bird: wine uses half float, sounds correct to me... */
1781	pSurface->typeGL = GL_FLOAT;
1782	#else
1783	pSurface->typeGL = GL_HALF_FLOAT;
1784	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1785	#endif
1786	break;
1787	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1788	pSurface->internalFormatGL = GL_R32F;
1789	pSurface->formatGL = GL_RED;
1790	pSurface->typeGL = GL_FLOAT;
1791	break;
1792	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1793	pSurface->internalFormatGL = GL_RG16F;
1794	pSurface->formatGL = GL_RG;
1795	#if 0 /* bird: wine uses half float, sounds correct to me... */
1796	pSurface->typeGL = GL_FLOAT;
1797	#else
1798	pSurface->typeGL = GL_HALF_FLOAT;
1799	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1800	#endif
1801	break;
1802	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1803	pSurface->internalFormatGL = GL_RG32F;
1804	pSurface->formatGL = GL_RG;
1805	pSurface->typeGL = GL_FLOAT;
1806	break;
1807
1808	/*
1809	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1810	* the most efficient format to use when creating new surfaces
1811	* expressly for index or vertex data.
1812	*/
1813	case SVGA3D_BUFFER:
1814	pSurface->internalFormatGL = -1;
1815	pSurface->formatGL = -1;
1816	pSurface->typeGL = -1;
1817	break;
1818
1819	#if 0
1820	return D3DFMT_UNKNOWN;
1821
1822	case SVGA3D_V16U16:
1823	return D3DFMT_V16U16;
1824	#endif
1825
1826	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1827	pSurface->internalFormatGL = GL_RG16;
1828	pSurface->formatGL = GL_RG;
1829	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1830	pSurface->typeGL = GL_UNSIGNED_INT;
1831	#else
1832	pSurface->typeGL = GL_UNSIGNED_SHORT;
1833	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1834	#endif
1835	break;
1836
1837	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1838	pSurface->internalFormatGL = GL_RGBA16;
1839	pSurface->formatGL = GL_RGBA;
1840	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1841	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1842	#else
1843	pSurface->typeGL = GL_UNSIGNED_SHORT;
1844	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1845	#endif
1846	break;
1847
1848	case SVGA3D_R8G8B8A8_SNORM:
1849	pSurface->internalFormatGL = GL_RGB8;
1850	pSurface->formatGL = GL_BGRA;
1851	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1852	AssertMsgFailed(("test me - SVGA3D_R8G8B8A8_SNORM\n"));
1853	break;
1854	case SVGA3D_R16G16_UNORM:
1855	pSurface->internalFormatGL = GL_RG16;
1856	pSurface->formatGL = GL_RG;
1857	pSurface->typeGL = GL_UNSIGNED_SHORT;
1858	AssertMsgFailed(("test me - SVGA3D_R16G16_UNORM\n"));
1859	break;
1860
1861	#if 0
1862	/* Packed Video formats */
1863	case SVGA3D_UYVY:
1864	return D3DFMT_UYVY;
1865	case SVGA3D_YUY2:
1866	return D3DFMT_YUY2;
1867
1868	/* Planar video formats */
1869	case SVGA3D_NV12:
1870	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1871
1872	/* Video format with alpha */
1873	case SVGA3D_AYUV:
1874	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1875
1876	case SVGA3D_BC4_UNORM:
1877	case SVGA3D_BC5_UNORM:
1878	/* Unknown; only in DX10 & 11 */
1879	break;
1880	#endif
1881	default:
1882	AssertMsgFailed(("Unsupported format %d\n", format));
1883	break;
1884	}
1885	}
1886
1887
1888	#if 0
1889	/**
1890	* Convert SVGA multi sample count value to its D3D equivalent
1891	*/
1892	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1893	{
1894	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1895	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1896
1897	if (multisampleCount > 16)
1898	return D3DMULTISAMPLE_NONE;
1899
1900	/** @todo exact same mapping as d3d? */
1901	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1902	}
1903	#endif
1904
1905	/**
1906	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1907	*
1908	* @param pState The VMSVGA3d state.
1909	* @param pSurface The surface being destroyed.
1910	*/
1911	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1912	{
1913	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1914	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1915
1916	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1917	{
1918	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1919	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1920	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1921	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1922	{
1923	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1924	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1925	}
1926	break;
1927
1928	case SVGA3D_SURFACE_CUBEMAP:
1929	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
1930	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1931	/* Cubemap is a texture. */
1932	case SVGA3D_SURFACE_HINT_TEXTURE:
1933	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1934	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1935	{
1936	glDeleteTextures(1, &pSurface->oglId.texture);
1937	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1938	}
1939	break;
1940
1941	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1942	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1943	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1944	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1945	{
1946	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1947	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1948	}
1949	break;
1950
1951	default:
1952	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1953	break;
1954	}
1955	}
1956
1957
1958	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1959	{
1960	for (uint32_t i = 0; i < cCopyBoxes; i++)
1961	{
1962	SVGA3dBox destBox, srcBox;
1963
1964	srcBox.x = pBox[i].srcx;
1965	srcBox.y = pBox[i].srcy;
1966	srcBox.z = pBox[i].srcz;
1967	srcBox.w = pBox[i].w;
1968	srcBox.h = pBox[i].h;
1969	srcBox.d = pBox[i].d;
1970
1971	destBox.x = pBox[i].x;
1972	destBox.y = pBox[i].y;
1973	destBox.z = pBox[i].z;
1974	destBox.w = pBox[i].w;
1975	destBox.h = pBox[i].h;
1976	destBox.d = pBox[i].d;
1977
1978	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1979	AssertRCReturn(rc, rc);
1980	}
1981	return VINF_SUCCESS;
1982	}
1983
1984
1985	/**
1986	* Save texture unpacking parameters and loads those appropriate for the given
1987	* surface.
1988	*
1989	* @param pState The VMSVGA3D state structure.
1990	* @param pContext The active context.
1991	* @param pSurface The surface.
1992	* @param pSave Where to save stuff.
1993	*/
1994	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1995	PVMSVGAPACKPARAMS pSave)
1996	{
1997	RT_NOREF(pState);
1998
1999	/*
2000	* Save (ignore errors, setting the defaults we want and avoids restore).
2001	*/
2002	pSave->iAlignment = 1;
2003	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2004	pSave->cxRow = 0;
2005	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2006
2007	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2008	pSave->cyImage = 0;
2009	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2010	Assert(pSave->cyImage == 0);
2011
2012	pSave->fSwapBytes = GL_FALSE;
2013	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2014	Assert(pSave->fSwapBytes == GL_FALSE);
2015
2016	pSave->fLsbFirst = GL_FALSE;
2017	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2018	Assert(pSave->fLsbFirst == GL_FALSE);
2019
2020	pSave->cSkipRows = 0;
2021	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2022	Assert(pSave->cSkipRows == 0);
2023
2024	pSave->cSkipPixels = 0;
2025	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2026	Assert(pSave->cSkipPixels == 0);
2027
2028	pSave->cSkipImages = 0;
2029	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2030	Assert(pSave->cSkipImages == 0);
2031
2032	VMSVGA3D_CLEAR_GL_ERRORS();
2033	#endif
2034
2035	/*
2036	* Setup unpack.
2037	*
2038	* Note! We use 1 as alignment here because we currently don't do any
2039	* aligning of line pitches anywhere.
2040	*/
2041	NOREF(pSurface);
2042	if (pSave->iAlignment != 1)
2043	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2044	if (pSave->cxRow != 0)
2045	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2046	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2047	if (pSave->cyImage != 0)
2048	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2049	if (pSave->fSwapBytes != 0)
2050	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2051	if (pSave->fLsbFirst != 0)
2052	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2053	if (pSave->cSkipRows != 0)
2054	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2055	if (pSave->cSkipPixels != 0)
2056	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2057	if (pSave->cSkipImages != 0)
2058	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2059	#endif
2060	}
2061
2062
2063	/**
2064	* Restores texture unpacking parameters.
2065	*
2066	* @param pState The VMSVGA3D state structure.
2067	* @param pContext The active context.
2068	* @param pSurface The surface.
2069	* @param pSave Where stuff was saved.
2070	*/
2071	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2072	PCVMSVGAPACKPARAMS pSave)
2073	{
2074	RT_NOREF(pState, pSurface);
2075
2076	if (pSave->iAlignment != 1)
2077	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2078	if (pSave->cxRow != 0)
2079	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2080	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2081	if (pSave->cyImage != 0)
2082	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2083	if (pSave->fSwapBytes != 0)
2084	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2085	if (pSave->fLsbFirst != 0)
2086	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2087	if (pSave->cSkipRows != 0)
2088	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2089	if (pSave->cSkipPixels != 0)
2090	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2091	if (pSave->cSkipImages != 0)
2092	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2093	#endif
2094	}
2095
2096	/**
2097	* Create D3D/OpenGL texture object for the specified surface.
2098	*
2099	* Surfaces are created when needed.
2100	*
2101	* @param pState The VMSVGA3d state.
2102	* @param pContext The context.
2103	* @param idAssociatedContext Probably the same as pContext->id.
2104	* @param pSurface The surface to create the texture for.
2105	*/
2106	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2107	PVMSVGA3DSURFACE pSurface)
2108	{
2109	RT_NOREF(idAssociatedContext);
2110
2111	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2112
2113	/* Fugure out what kind of texture we are creating. */
2114	GLenum binding;
2115	GLenum target;
2116	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2117	{
2118	Assert(pSurface->cFaces == 6);
2119
2120	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2121	target = GL_TEXTURE_CUBE_MAP;
2122	}
2123	else
2124	{
2125	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2126	{
2127	binding = GL_TEXTURE_BINDING_3D;
2128	target = GL_TEXTURE_3D;
2129	}
2130	else
2131	{
2132	Assert(pSurface->cFaces == 1);
2133
2134	binding = GL_TEXTURE_BINDING_2D;
2135	target = GL_TEXTURE_2D;
2136	}
2137	}
2138
2139	/* All textures are created in the SharedCtx. */
2140	uint32_t idPrevCtx = pState->idActiveContext;
2141	pContext = &pState->SharedCtx;
2142	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2143
2144	glGenTextures(1, &pSurface->oglId.texture);
2145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2146
2147	GLint activeTexture = 0;
2148	glGetIntegerv(binding, &activeTexture);
2149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2150
2151	/* Must bind texture to the current context in order to change it. */
2152	glBindTexture(target, pSurface->oglId.texture);
2153	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2154
2155	/* Set the unpacking parameters. */
2156	VMSVGAPACKPARAMS SavedParams;
2157	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2158
2159	/** @todo Set the mip map generation filter settings. */
2160
2161	/* Set the mipmap base and max level parameters. */
2162	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2164	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2165	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2166
2167	if (pSurface->fDirty)
2168	LogFunc(("sync dirty texture\n"));
2169
2170	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2171	if (target == GL_TEXTURE_3D)
2172	{
2173	for (uint32_t i = 0; i < numMipLevels; ++i)
2174	{
2175	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2176	* exposing random host memory to the guest and helps a with the fedora 21 surface
2177	* corruption issues (launchpad, background, search field, login).
2178	*/
2179	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2180
2181	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2182	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2183
2184	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2185	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2186	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2187	{
2188	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2189	i,
2190	pSurface->internalFormatGL,
2191	pMipLevel->mipmapSize.width,
2192	pMipLevel->mipmapSize.height,
2193	pMipLevel->mipmapSize.depth,
2194	0,
2195	pMipLevel->cbSurface,
2196	pMipLevel->pSurfaceData);
2197	}
2198	else
2199	{
2200	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2201	i,
2202	pSurface->internalFormatGL,
2203	pMipLevel->mipmapSize.width,
2204	pMipLevel->mipmapSize.height,
2205	pMipLevel->mipmapSize.depth,
2206	0, /* border */
2207	pSurface->formatGL,
2208	pSurface->typeGL,
2209	pMipLevel->pSurfaceData);
2210	}
2211	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2212
2213	pMipLevel->fDirty = false;
2214	}
2215	}
2216	else if (target == GL_TEXTURE_CUBE_MAP)
2217	{
2218	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2219	{
2220	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2221
2222	for (uint32_t i = 0; i < numMipLevels; ++i)
2223	{
2224	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2225	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2226	Assert(pMipLevel->mipmapSize.depth == 1);
2227
2228	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2229	iFace, i, pMipLevel->fDirty));
2230
2231	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2232	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2233	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2234	{
2235	pState->ext.glCompressedTexImage2D(Face,
2236	i,
2237	pSurface->internalFormatGL,
2238	pMipLevel->mipmapSize.width,
2239	pMipLevel->mipmapSize.height,
2240	0,
2241	pMipLevel->cbSurface,
2242	pMipLevel->pSurfaceData);
2243	}
2244	else
2245	{
2246	glTexImage2D(Face,
2247	i,
2248	pSurface->internalFormatGL,
2249	pMipLevel->mipmapSize.width,
2250	pMipLevel->mipmapSize.height,
2251	0,
2252	pSurface->formatGL,
2253	pSurface->typeGL,
2254	pMipLevel->pSurfaceData);
2255	}
2256	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2257
2258	pMipLevel->fDirty = false;
2259	}
2260	}
2261	}
2262	else if (target == GL_TEXTURE_2D)
2263	{
2264	for (uint32_t i = 0; i < numMipLevels; ++i)
2265	{
2266	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2267	* exposing random host memory to the guest and helps a with the fedora 21 surface
2268	* corruption issues (launchpad, background, search field, login).
2269	*/
2270	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2271	Assert(pMipLevel->mipmapSize.depth == 1);
2272
2273	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2274	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2275
2276	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2277	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2278	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2279	{
2280	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2281	i,
2282	pSurface->internalFormatGL,
2283	pMipLevel->mipmapSize.width,
2284	pMipLevel->mipmapSize.height,
2285	0,
2286	pMipLevel->cbSurface,
2287	pMipLevel->pSurfaceData);
2288	}
2289	else
2290	{
2291	glTexImage2D(GL_TEXTURE_2D,
2292	i,
2293	pSurface->internalFormatGL,
2294	pMipLevel->mipmapSize.width,
2295	pMipLevel->mipmapSize.height,
2296	0,
2297	pSurface->formatGL,
2298	pSurface->typeGL,
2299	pMipLevel->pSurfaceData);
2300	}
2301	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2302
2303	pMipLevel->fDirty = false;
2304	}
2305	}
2306
2307	pSurface->fDirty = false;
2308
2309	/* Restore unpacking parameters. */
2310	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2311
2312	/* Restore the old active texture. */
2313	glBindTexture(target, activeTexture);
2314	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2315
2316	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2317	pSurface->targetGL = target;
2318	pSurface->bindingGL = binding;
2319
2320	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2321	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2322	return VINF_SUCCESS;
2323	}
2324
2325
2326	/**
2327	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2328	*
2329	* @returns VBox status code.
2330	* @param pThis The VGA device instance.
2331	* @param pState The VMSVGA3d state.
2332	* @param pDstSurface The destination host surface.
2333	* @param uDstFace The destination face (valid).
2334	* @param uDstMipmap The destination mipmap level (valid).
2335	* @param pDstBox The destination box.
2336	* @param pSrcSurface The source host surface.
2337	* @param uSrcFace The destination face (valid).
2338	* @param uSrcMipmap The source mimap level (valid).
2339	* @param pSrcBox The source box.
2340	* @param enmMode The strecht blt mode .
2341	* @param pContext The VMSVGA3d context (already current for OGL).
2342	*/
2343	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2344	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2345	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2346	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2347	{
2348	RT_NOREF(pThis);
2349
2350	/* Activate the read and draw framebuffer objects. */
2351	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2352	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2353	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2355
2356	/* Bind the source and destination objects to the right place. */
2357	GLenum textarget;
2358	if (pSrcSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2359	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2360	else
2361	textarget = GL_TEXTURE_2D;
2362	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2363	pSrcSurface->oglId.texture, uSrcMipmap);
2364	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2365
2366	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2367	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2368	else
2369	textarget = GL_TEXTURE_2D;
2370	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2371	pDstSurface->oglId.texture, uDstMipmap);
2372	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2373
2374	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2375	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2376	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2377	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2378	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2379
2380	pState->ext.glBlitFramebuffer(pSrcBox->x,
2381	pSrcBox->y,
2382	pSrcBox->x + pSrcBox->w, /* exclusive. */
2383	pSrcBox->y + pSrcBox->h,
2384	pDstBox->x,
2385	pDstBox->y,
2386	pDstBox->x + pDstBox->w, /* exclusive. */
2387	pDstBox->y + pDstBox->h,
2388	GL_COLOR_BUFFER_BIT,
2389	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2391
2392	/* Reset the frame buffer association */
2393	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2394	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2395
2396	return VINF_SUCCESS;
2397	}
2398
2399	/**
2400	* Save texture packing parameters and loads those appropriate for the given
2401	* surface.
2402	*
2403	* @param pState The VMSVGA3D state structure.
2404	* @param pContext The active context.
2405	* @param pSurface The surface.
2406	* @param pSave Where to save stuff.
2407	*/
2408	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2409	PVMSVGAPACKPARAMS pSave)
2410	{
2411	RT_NOREF(pState);
2412	/*
2413	* Save (ignore errors, setting the defaults we want and avoids restore).
2414	*/
2415	pSave->iAlignment = 1;
2416	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2417	pSave->cxRow = 0;
2418	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2419
2420	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2421	pSave->cyImage = 0;
2422	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2423	Assert(pSave->cyImage == 0);
2424
2425	pSave->fSwapBytes = GL_FALSE;
2426	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2427	Assert(pSave->fSwapBytes == GL_FALSE);
2428
2429	pSave->fLsbFirst = GL_FALSE;
2430	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2431	Assert(pSave->fLsbFirst == GL_FALSE);
2432
2433	pSave->cSkipRows = 0;
2434	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2435	Assert(pSave->cSkipRows == 0);
2436
2437	pSave->cSkipPixels = 0;
2438	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2439	Assert(pSave->cSkipPixels == 0);
2440
2441	pSave->cSkipImages = 0;
2442	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2443	Assert(pSave->cSkipImages == 0);
2444
2445	VMSVGA3D_CLEAR_GL_ERRORS();
2446	#endif
2447
2448	/*
2449	* Setup unpack.
2450	*
2451	* Note! We use 1 as alignment here because we currently don't do any
2452	* aligning of line pitches anywhere.
2453	*/
2454	NOREF(pSurface);
2455	if (pSave->iAlignment != 1)
2456	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2457	if (pSave->cxRow != 0)
2458	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2459	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2460	if (pSave->cyImage != 0)
2461	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2462	if (pSave->fSwapBytes != 0)
2463	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2464	if (pSave->fLsbFirst != 0)
2465	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2466	if (pSave->cSkipRows != 0)
2467	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2468	if (pSave->cSkipPixels != 0)
2469	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2470	if (pSave->cSkipImages != 0)
2471	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2472	#endif
2473	}
2474
2475
2476	/**
2477	* Restores texture packing parameters.
2478	*
2479	* @param pState The VMSVGA3D state structure.
2480	* @param pContext The active context.
2481	* @param pSurface The surface.
2482	* @param pSave Where stuff was saved.
2483	*/
2484	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2485	PCVMSVGAPACKPARAMS pSave)
2486	{
2487	RT_NOREF(pState, pSurface);
2488	if (pSave->iAlignment != 1)
2489	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2490	if (pSave->cxRow != 0)
2491	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2492	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2493	if (pSave->cyImage != 0)
2494	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2495	if (pSave->fSwapBytes != 0)
2496	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2497	if (pSave->fLsbFirst != 0)
2498	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2499	if (pSave->cSkipRows != 0)
2500	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2501	if (pSave->cSkipPixels != 0)
2502	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2503	if (pSave->cSkipImages != 0)
2504	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2505	#endif
2506	}
2507
2508
2509	/**
2510	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2511	*
2512	* @returns Failure status code or @a rc.
2513	* @param pThis The VGA device instance data.
2514	* @param pState The VMSVGA3d state.
2515	* @param pSurface The host surface.
2516	* @param pMipLevel Mipmap level. The caller knows it already.
2517	* @param uHostFace The host face (valid).
2518	* @param uHostMipmap The host mipmap level (valid).
2519	* @param GuestPtr The guest pointer.
2520	* @param cbGuestPitch The guest pitch.
2521	* @param transfer The transfer direction.
2522	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2523	* @param pContext The context (for OpenGL).
2524	* @param rc The current rc for all boxes.
2525	* @param iBox The current box number (for Direct 3D).
2526	*/
2527	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2528	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2529	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2530	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2531	{
2532	RT_NOREF(iBox);
2533
2534	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2535	{
2536	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2537	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2538	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2539	case SVGA3D_SURFACE_HINT_TEXTURE:
2540	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2541	{
2542	uint32_t cbSurfacePitch;
2543	uint8_t *pDoubleBuffer;
2544	uint32_t offHst;
2545
2546	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2547	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2548	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2549	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2550
2551	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2552	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2553	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2554	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2555
2556	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2557	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2558	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2559
2560	GLenum texImageTarget;
2561	if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2562	{
2563	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2564	}
2565	else
2566	{
2567	Assert(pSurface->targetGL == GL_TEXTURE_2D);
2568	texImageTarget = GL_TEXTURE_2D;
2569	}
2570
2571	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2572	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2573
2574	if (transfer == SVGA3D_READ_HOST_VRAM)
2575	{
2576	GLint activeTexture;
2577
2578	/* Must bind texture to the current context in order to read it. */
2579	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2580	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2581
2582	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2583	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2584
2585	/* Set row length and alignment of the input data. */
2586	VMSVGAPACKPARAMS SavedParams;
2587	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2588
2589	glGetTexImage(texImageTarget,
2590	uHostMipmap,
2591	pSurface->formatGL,
2592	pSurface->typeGL,
2593	pDoubleBuffer);
2594	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2595
2596	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2597
2598	/* Restore the old active texture. */
2599	glBindTexture(pSurface->targetGL, activeTexture);
2600	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2601
2602	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2603	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2604	}
2605	else
2606	{
2607	/* The buffer will contain only the copied rectangle. */
2608	offHst = 0;
2609	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2610	}
2611
2612	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2613
2614	rc = vmsvgaGMRTransfer(pThis,
2615	transfer,
2616	pDoubleBuffer,
2617	pMipLevel->cbSurface,
2618	offHst,
2619	cbSurfacePitch,
2620	GuestPtr,
2621	offGst,
2622	cbGuestPitch,
2623	cBlocksX * pSurface->cbBlock,
2624	cBlocksY);
2625	AssertRC(rc);
2626
2627	/* Update the opengl surface data. */
2628	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2629	{
2630	GLint activeTexture = 0;
2631	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2632	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2633
2634	/* Must bind texture to the current context in order to change it. */
2635	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2636	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2637
2638	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2639
2640	/* Set row length and alignment of the input data. */
2641	VMSVGAPACKPARAMS SavedParams;
2642	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2643
2644	glTexSubImage2D(texImageTarget,
2645	uHostMipmap,
2646	u32HostBlockX,
2647	u32HostBlockY,
2648	cBlocksX,
2649	cBlocksY,
2650	pSurface->formatGL,
2651	pSurface->typeGL,
2652	pDoubleBuffer);
2653	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2654
2655	/* Restore old values. */
2656	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2657
2658	/* Restore the old active texture. */
2659	glBindTexture(pSurface->targetGL, activeTexture);
2660	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2661	}
2662
2663	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2664
2665	/* Free the double buffer. */
2666	RTMemFree(pDoubleBuffer);
2667	break;
2668	}
2669
2670	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2671	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2672	break;
2673
2674	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2675	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2676	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2677	{
2678	/* Buffers are uncompressed. */
2679	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2680
2681	/* Caller already clipped pBox and buffers are 1-dimensional. */
2682	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2683
2684	VMSVGA3D_CLEAR_GL_ERRORS();
2685	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2686	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2687	{
2688	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2689	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2690	if (RT_LIKELY(pbData != NULL))
2691	{
2692	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2693	GLint cbStrictBufSize;
2694	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2695	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2696	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2697	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2698	#endif
2699	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2700	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2701	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2702	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2703
2704	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2705
2706	rc = vmsvgaGMRTransfer(pThis,
2707	transfer,
2708	pbData,
2709	pMipLevel->cbSurface,
2710	offHst,
2711	pMipLevel->cbSurfacePitch,
2712	GuestPtr,
2713	pBox->srcx * pSurface->cbBlock,
2714	cbGuestPitch,
2715	pBox->w * pSurface->cbBlock,
2716	pBox->h);
2717	AssertRC(rc);
2718
2719	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2720
2721	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2722	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2723	}
2724	else
2725	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2726	}
2727	else
2728	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2729	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2730	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2731	break;
2732	}
2733
2734	default:
2735	AssertFailed();
2736	break;
2737	}
2738
2739	return rc;
2740	}
2741
2742	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2743	{
2744	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2745	PVMSVGA3DSURFACE pSurface;
2746	int rc = VINF_SUCCESS;
2747	PVMSVGA3DCONTEXT pContext;
2748	uint32_t cid;
2749	GLint activeTexture = 0;
2750
2751	AssertReturn(pState, VERR_NO_MEMORY);
2752
2753	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2754	AssertRCReturn(rc, rc);
2755
2756	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2757	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2758	pSurface->autogenFilter = filter;
2759
2760	LogFunc(("sid=%x filter=%d\n", sid, filter));
2761
2762	cid = SVGA3D_INVALID_ID;
2763	pContext = &pState->SharedCtx;
2764	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2765
2766	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2767	{
2768	/* Unknown surface type; turn it into a texture. */
2769	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2770	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2771	AssertRCReturn(rc, rc);
2772	}
2773	else
2774	{
2775	/** @todo new filter */
2776	AssertFailed();
2777	}
2778
2779	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2780	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2781
2782	/* Must bind texture to the current context in order to change it. */
2783	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2785
2786	/* Generate the mip maps. */
2787	pState->ext.glGenerateMipmap(pSurface->targetGL);
2788	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2789
2790	/* Restore the old texture. */
2791	glBindTexture(pSurface->targetGL, activeTexture);
2792	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2793
2794	return VINF_SUCCESS;
2795	}
2796
2797
2798	#ifdef RT_OS_LINUX
2799	/**
2800	* X11 event handling thread.
2801	*
2802	* @returns VINF_SUCCESS (ignored)
2803	* @param hThreadSelf thread handle
2804	* @param pvUser pointer to pState structure
2805	*/
2806	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
2807	{
2808	RT_NOREF(hThreadSelf);
2809	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
2810	while (!pState->bTerminate)
2811	{
2812	while (XPending(pState->display) > 0)
2813	{
2814	XEvent event;
2815	XNextEvent(pState->display, &event);
2816
2817	switch (event.type)
2818	{
2819	default:
2820	break;
2821	}
2822	}
2823	/* sleep for 16ms to not burn too many cycles */
2824	RTThreadSleep(16);
2825	}
2826	return VINF_SUCCESS;
2827	}
2828	#endif // RT_OS_LINUX
2829
2830
2831	/**
2832	* Create a new 3d context
2833	*
2834	* @returns VBox status code.
2835	* @param pThis VGA device instance data.
2836	* @param cid Context id
2837	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
2838	*/
2839	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
2840	{
2841	int rc;
2842	PVMSVGA3DCONTEXT pContext;
2843	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2844
2845	AssertReturn(pState, VERR_NO_MEMORY);
2846	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
2847	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
2848	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
2849	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
2850	#endif
2851
2852	Log(("vmsvga3dContextDefine id %x\n", cid));
2853
2854	if (cid == VMSVGA3D_SHARED_CTX_ID)
2855	pContext = &pState->SharedCtx;
2856	else
2857	{
2858	if (cid >= pState->cContexts)
2859	{
2860	/* Grow the array. */
2861	uint32_t cNew = RT_ALIGN(cid + 15, 16);
2862	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
2863	AssertReturn(pvNew, VERR_NO_MEMORY);
2864	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
2865	while (pState->cContexts < cNew)
2866	{
2867	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
2868	AssertReturn(pContext, VERR_NO_MEMORY);
2869	pContext->id = SVGA3D_INVALID_ID;
2870	pState->papContexts[pState->cContexts++] = pContext;
2871	}
2872	}
2873	/* If one already exists with this id, then destroy it now. */
2874	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
2875	vmsvga3dContextDestroy(pThis, cid);
2876
2877	pContext = pState->papContexts[cid];
2878	}
2879
2880	/*
2881	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
2882	*/
2883	PVMSVGA3DCONTEXT pSharedCtx = NULL;
2884	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
2885	{
2886	pSharedCtx = &pState->SharedCtx;
2887	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
2888	{
2889	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
2890	AssertLogRelRCReturn(rc, rc);
2891	}
2892	}
2893
2894	/*
2895	* Initialize the context.
2896	*/
2897	memset(pContext, 0, sizeof(*pContext));
2898	pContext->id = cid;
2899	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
2900	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
2901
2902	pContext->state.shidVertex = SVGA3D_INVALID_ID;
2903	pContext->state.shidPixel = SVGA3D_INVALID_ID;
2904	pContext->idFramebuffer = OPENGL_INVALID_ID;
2905	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
2906	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
2907
2908	rc = ShaderContextCreate(&pContext->pShaderContext);
2909	AssertRCReturn(rc, rc);
2910
2911	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
2912	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
2913
2914	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
2915
2916	#ifdef RT_OS_WINDOWS
2917	/* Create a context window with minimal 4x4 size. We will never use the swapchain
2918	* to present the rendered image. Rendered images from the guest will be copied to
2919	* the VMSVGA SCREEN object, which can be either an offscreen render target or
2920	* system memory in the guest VRAM.
2921	*/
2922	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
2923	AssertRCReturn(rc, rc);
2924
2925	pContext->hdc = GetDC(pContext->hwnd);
2926	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
2927
2928	PIXELFORMATDESCRIPTOR pfd = {
2929	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
2930	1, /* version number */
2931	PFD_DRAW_TO_WINDOW \| /* support window */
2932	PFD_SUPPORT_OPENGL, /* support OpenGL */
2933	PFD_TYPE_RGBA, /* RGBA type */
2934	24, /* 24-bit color depth */
2935	0, 0, 0, 0, 0, 0, /* color bits ignored */
2936	8, /* alpha buffer */
2937	0, /* shift bit ignored */
2938	0, /* no accumulation buffer */
2939	0, 0, 0, 0, /* accum bits ignored */
2940	16, /* set depth buffer */
2941	16, /* set stencil buffer */
2942	0, /* no auxiliary buffer */
2943	PFD_MAIN_PLANE, /* main layer */
2944	0, /* reserved */
2945	0, 0, 0 /* layer masks ignored */
2946	};
2947	int pixelFormat;
2948	BOOL ret;
2949
2950	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2951	/** @todo is this really necessary?? */
2952	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2953	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2954
2955	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
2956	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2957
2958	pContext->hglrc = wglCreateContext(pContext->hdc);
2959	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
2960
2961	if (pSharedCtx)
2962	{
2963	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
2964	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
2965	}
2966
2967	#elif defined(RT_OS_DARWIN)
2968	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
2969
2970	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
2971	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
2972	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
2973	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
2974	pThis->svga.uWidth, pThis->svga.uHeight,
2975	pShareContext, pContext->fOtherProfile);
2976
2977	#else
2978	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
2979
2980	if (pState->display == NULL)
2981	{
2982	/* get an X display and make sure we have glX 1.3 */
2983	pState->display = XOpenDisplay(0);
2984	Assert(pState->display);
2985	int glxMajor, glxMinor;
2986	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
2987	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
2988	/* start our X event handling thread */
2989	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
2990	if (RT_FAILURE(rc))
2991	{
2992	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
2993	return rc;
2994	}
2995	}
2996	int attrib[] =
2997	{
2998	GLX_RGBA,
2999	GLX_RED_SIZE, 1,
3000	GLX_GREEN_SIZE, 1,
3001	GLX_BLUE_SIZE, 1,
3002	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3003	GLX_DOUBLEBUFFER,
3004	None
3005	};
3006	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3007	XSetWindowAttributes swa;
3008	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3009	swa.border_pixel = 0;
3010	swa.background_pixel = 0;
3011	swa.event_mask = StructureNotifyMask \| ExposureMask;
3012	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3013	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3014	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3015	0, vi->depth, InputOutput,
3016	vi->visual, flags, &swa);
3017	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3018	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3019
3020	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3021
3022	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3023	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3024	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3025	#endif
3026
3027	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3028
3029	/* NULL during the first PowerOn call. */
3030	if (pState->ext.glGenFramebuffers)
3031	{
3032	/* Create a framebuffer object for this context. */
3033	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3034	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3035
3036	/* Bind the object to the framebuffer target. */
3037	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3038	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3039
3040	/* Create read and draw framebuffer objects for this context. */
3041	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3043
3044	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3046
3047	}
3048	#if 0
3049	/** @todo move to shader lib!!! */
3050	/* Clear the screen */
3051	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3052
3053	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3054	glClearIndex(0);
3055	glClearDepth(1);
3056	glClearStencil(0xffff);
3057	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3058	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3059	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3060	if (pState->ext.glProvokingVertex)
3061	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3062	/** @todo move to shader lib!!! */
3063	#endif
3064	return VINF_SUCCESS;
3065	}
3066
3067
3068	/**
3069	* Create a new 3d context
3070	*
3071	* @returns VBox status code.
3072	* @param pThis VGA device instance data.
3073	* @param cid Context id
3074	*/
3075	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3076	{
3077	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3078	}
3079
3080	/**
3081	* Destroys a 3d context.
3082	*
3083	* @returns VBox status code.
3084	* @param pThis VGA device instance data.
3085	* @param pContext The context to destroy.
3086	* @param cid Context id
3087	*/
3088	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3089	{
3090	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3091	AssertReturn(pState, VERR_NO_MEMORY);
3092	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3093	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3094	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3095
3096	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3097
3098	/* Destroy all leftover pixel shaders. */
3099	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3100	{
3101	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3102	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3103	}
3104	if (pContext->paPixelShader)
3105	RTMemFree(pContext->paPixelShader);
3106
3107	/* Destroy all leftover vertex shaders. */
3108	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3109	{
3110	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3111	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3112	}
3113	if (pContext->paVertexShader)
3114	RTMemFree(pContext->paVertexShader);
3115
3116	if (pContext->state.paVertexShaderConst)
3117	RTMemFree(pContext->state.paVertexShaderConst);
3118	if (pContext->state.paPixelShaderConst)
3119	RTMemFree(pContext->state.paPixelShaderConst);
3120
3121	if (pContext->pShaderContext)
3122	{
3123	int rc = ShaderContextDestroy(pContext->pShaderContext);
3124	AssertRC(rc);
3125	}
3126
3127	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3128	{
3129	/* Unbind the object from the framebuffer target. */
3130	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3132	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3134
3135	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3136	{
3137	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3139	}
3140	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3141	{
3142	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3143	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3144	}
3145	}
3146
3147	vmsvga3dOcclusionQueryDelete(pState, pContext);
3148
3149	#ifdef RT_OS_WINDOWS
3150	wglMakeCurrent(pContext->hdc, NULL);
3151	wglDeleteContext(pContext->hglrc);
3152	ReleaseDC(pContext->hwnd, pContext->hdc);
3153
3154	/* Destroy the window we've created. */
3155	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3156	AssertRC(rc);
3157	#elif defined(RT_OS_DARWIN)
3158	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3159	#elif defined(RT_OS_LINUX)
3160	glXMakeCurrent(pState->display, None, NULL);
3161	glXDestroyContext(pState->display, pContext->glxContext);
3162	XDestroyWindow(pState->display, pContext->window);
3163	#endif
3164
3165	memset(pContext, 0, sizeof(*pContext));
3166	pContext->id = SVGA3D_INVALID_ID;
3167
3168	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3169	return VINF_SUCCESS;
3170	}
3171
3172	/**
3173	* Destroy an existing 3d context
3174	*
3175	* @returns VBox status code.
3176	* @param pThis VGA device instance data.
3177	* @param cid Context id
3178	*/
3179	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3180	{
3181	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3182	AssertReturn(pState, VERR_WRONG_ORDER);
3183
3184	/*
3185	* Resolve the context and hand it to the common worker function.
3186	*/
3187	if ( cid < pState->cContexts
3188	&& pState->papContexts[cid]->id == cid)
3189	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3190
3191	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3192	return VINF_SUCCESS;
3193	}
3194
3195	/**
3196	* Worker for vmsvga3dChangeMode that resizes a context.
3197	*
3198	* @param pThis The VGA device instance data.
3199	* @param pState The VMSVGA3d state.
3200	* @param pContext The context.
3201	*/
3202	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3203	{
3204	#ifdef RT_OS_WINDOWS
3205	RT_NOREF3(pThis, pState, pContext);
3206	/* Do nothing. The window is not used for presenting. */
3207
3208	#elif defined(RT_OS_DARWIN)
3209	RT_NOREF(pState);
3210	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3211
3212	#elif defined(RT_OS_LINUX)
3213	XWindowChanges wc;
3214	wc.width = pThis->svga.uWidth;
3215	wc.height = pThis->svga.uHeight;
3216	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3217	#endif
3218	}
3219
3220	/* Handle resize */
3221	int vmsvga3dChangeMode(PVGASTATE pThis)
3222	{
3223	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3224	AssertReturn(pState, VERR_NO_MEMORY);
3225
3226	/* Resize the shared context too. */
3227	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3228	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3229
3230	/* Resize all active contexts. */
3231	for (uint32_t i = 0; i < pState->cContexts; i++)
3232	{
3233	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3234	if (pContext->id != SVGA3D_INVALID_ID)
3235	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3236	}
3237
3238	return VINF_SUCCESS;
3239	}
3240
3241
3242	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3243	{
3244	PVMSVGA3DCONTEXT pContext;
3245	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3246	AssertReturn(pState, VERR_NO_MEMORY);
3247	bool fModelViewChanged = false;
3248
3249	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3250
3251	if ( cid >= pState->cContexts
3252	\|\| pState->papContexts[cid]->id != cid)
3253	{
3254	Log(("vmsvga3dSetTransform invalid context id!\n"));
3255	return VERR_INVALID_PARAMETER;
3256	}
3257	pContext = pState->papContexts[cid];
3258	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3259
3260	/* Save this matrix for vm state save/restore. */
3261	pContext->state.aTransformState[type].fValid = true;
3262	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3263	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3264
3265	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)));
3266	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)));
3267	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)));
3268	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)));
3269
3270	switch (type)
3271	{
3272	case SVGA3D_TRANSFORM_VIEW:
3273	/* View * World = Model View */
3274	glMatrixMode(GL_MODELVIEW);
3275	glLoadMatrixf(matrix);
3276	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3277	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3278	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3279	fModelViewChanged = true;
3280	break;
3281
3282	case SVGA3D_TRANSFORM_PROJECTION:
3283	{
3284	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3285	AssertRCReturn(rc, rc);
3286	break;
3287	}
3288
3289	case SVGA3D_TRANSFORM_TEXTURE0:
3290	glMatrixMode(GL_TEXTURE);
3291	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3292	glLoadMatrixf(matrix);
3293	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3294	break;
3295
3296	case SVGA3D_TRANSFORM_TEXTURE1:
3297	case SVGA3D_TRANSFORM_TEXTURE2:
3298	case SVGA3D_TRANSFORM_TEXTURE3:
3299	case SVGA3D_TRANSFORM_TEXTURE4:
3300	case SVGA3D_TRANSFORM_TEXTURE5:
3301	case SVGA3D_TRANSFORM_TEXTURE6:
3302	case SVGA3D_TRANSFORM_TEXTURE7:
3303	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3304	return VERR_INVALID_PARAMETER;
3305
3306	case SVGA3D_TRANSFORM_WORLD:
3307	/* View * World = Model View */
3308	glMatrixMode(GL_MODELVIEW);
3309	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3310	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3311	else
3312	glLoadIdentity();
3313	glMultMatrixf(matrix);
3314	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3315	fModelViewChanged = true;
3316	break;
3317
3318	case SVGA3D_TRANSFORM_WORLD1:
3319	case SVGA3D_TRANSFORM_WORLD2:
3320	case SVGA3D_TRANSFORM_WORLD3:
3321	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3322	return VERR_INVALID_PARAMETER;
3323
3324	default:
3325	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3326	return VERR_INVALID_PARAMETER;
3327	}
3328
3329	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3330	if (fModelViewChanged)
3331	{
3332	/* Reprogram the clip planes. */
3333	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3334	{
3335	if (pContext->state.aClipPlane[j].fValid == true)
3336	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3337	}
3338
3339	/* Reprogram the light data. */
3340	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3341	{
3342	if (pContext->state.aLightData[j].fValidData == true)
3343	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3344	}
3345	}
3346
3347	return VINF_SUCCESS;
3348	}
3349
3350	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3351	{
3352	PVMSVGA3DCONTEXT pContext;
3353	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3354	AssertReturn(pState, VERR_NO_MEMORY);
3355
3356	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3357
3358	if ( cid >= pState->cContexts
3359	\|\| pState->papContexts[cid]->id != cid)
3360	{
3361	Log(("vmsvga3dSetZRange invalid context id!\n"));
3362	return VERR_INVALID_PARAMETER;
3363	}
3364	pContext = pState->papContexts[cid];
3365	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3366
3367	pContext->state.zRange = zRange;
3368	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3369
3370	if (zRange.min < -1.0)
3371	zRange.min = -1.0;
3372	if (zRange.max > 1.0)
3373	zRange.max = 1.0;
3374
3375	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3376	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3377	return VINF_SUCCESS;
3378	}
3379
3380	/**
3381	* Convert SVGA blend op value to its OpenGL equivalent
3382	*/
3383	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3384	{
3385	switch (blendOp)
3386	{
3387	case SVGA3D_BLENDOP_ZERO:
3388	return GL_ZERO;
3389	case SVGA3D_BLENDOP_ONE:
3390	return GL_ONE;
3391	case SVGA3D_BLENDOP_SRCCOLOR:
3392	return GL_SRC_COLOR;
3393	case SVGA3D_BLENDOP_INVSRCCOLOR:
3394	return GL_ONE_MINUS_SRC_COLOR;
3395	case SVGA3D_BLENDOP_SRCALPHA:
3396	return GL_SRC_ALPHA;
3397	case SVGA3D_BLENDOP_INVSRCALPHA:
3398	return GL_ONE_MINUS_SRC_ALPHA;
3399	case SVGA3D_BLENDOP_DESTALPHA:
3400	return GL_DST_ALPHA;
3401	case SVGA3D_BLENDOP_INVDESTALPHA:
3402	return GL_ONE_MINUS_DST_ALPHA;
3403	case SVGA3D_BLENDOP_DESTCOLOR:
3404	return GL_DST_COLOR;
3405	case SVGA3D_BLENDOP_INVDESTCOLOR:
3406	return GL_ONE_MINUS_DST_COLOR;
3407	case SVGA3D_BLENDOP_SRCALPHASAT:
3408	return GL_SRC_ALPHA_SATURATE;
3409	case SVGA3D_BLENDOP_BLENDFACTOR:
3410	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3411	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3412	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3413	default:
3414	AssertFailed();
3415	return GL_ONE;
3416	}
3417	}
3418
3419	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3420	{
3421	switch (blendEq)
3422	{
3423	case SVGA3D_BLENDEQ_ADD:
3424	return GL_FUNC_ADD;
3425	case SVGA3D_BLENDEQ_SUBTRACT:
3426	return GL_FUNC_SUBTRACT;
3427	case SVGA3D_BLENDEQ_REVSUBTRACT:
3428	return GL_FUNC_REVERSE_SUBTRACT;
3429	case SVGA3D_BLENDEQ_MINIMUM:
3430	return GL_MIN;
3431	case SVGA3D_BLENDEQ_MAXIMUM:
3432	return GL_MAX;
3433	default:
3434	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3435	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3436	return GL_FUNC_ADD;
3437	}
3438	}
3439
3440	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3441	{
3442	switch (cmpFunc)
3443	{
3444	case SVGA3D_CMP_NEVER:
3445	return GL_NEVER;
3446	case SVGA3D_CMP_LESS:
3447	return GL_LESS;
3448	case SVGA3D_CMP_EQUAL:
3449	return GL_EQUAL;
3450	case SVGA3D_CMP_LESSEQUAL:
3451	return GL_LEQUAL;
3452	case SVGA3D_CMP_GREATER:
3453	return GL_GREATER;
3454	case SVGA3D_CMP_NOTEQUAL:
3455	return GL_NOTEQUAL;
3456	case SVGA3D_CMP_GREATEREQUAL:
3457	return GL_GEQUAL;
3458	case SVGA3D_CMP_ALWAYS:
3459	return GL_ALWAYS;
3460	default:
3461	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3462	return GL_LESS;
3463	}
3464	}
3465
3466	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3467	{
3468	switch (stencilOp)
3469	{
3470	case SVGA3D_STENCILOP_KEEP:
3471	return GL_KEEP;
3472	case SVGA3D_STENCILOP_ZERO:
3473	return GL_ZERO;
3474	case SVGA3D_STENCILOP_REPLACE:
3475	return GL_REPLACE;
3476	case SVGA3D_STENCILOP_INCRSAT:
3477	return GL_INCR_WRAP;
3478	case SVGA3D_STENCILOP_DECRSAT:
3479	return GL_DECR_WRAP;
3480	case SVGA3D_STENCILOP_INVERT:
3481	return GL_INVERT;
3482	case SVGA3D_STENCILOP_INCR:
3483	return GL_INCR;
3484	case SVGA3D_STENCILOP_DECR:
3485	return GL_DECR;
3486	default:
3487	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3488	return GL_KEEP;
3489	}
3490	}
3491
3492	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3493	{
3494	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3495	PVMSVGA3DCONTEXT pContext;
3496	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3497	AssertReturn(pState, VERR_NO_MEMORY);
3498
3499	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3500
3501	if ( cid >= pState->cContexts
3502	\|\| pState->papContexts[cid]->id != cid)
3503	{
3504	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3505	return VERR_INVALID_PARAMETER;
3506	}
3507	pContext = pState->papContexts[cid];
3508	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3509
3510	for (unsigned i = 0; i < cRenderStates; i++)
3511	{
3512	GLenum enableCap = ~(GLenum)0;
3513	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3514	/* Save the render state for vm state saving. */
3515	if (pRenderState[i].state < SVGA3D_RS_MAX)
3516	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3517
3518	switch (pRenderState[i].state)
3519	{
3520	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3521	enableCap = GL_DEPTH_TEST;
3522	val = pRenderState[i].uintValue;
3523	break;
3524
3525	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3526	glDepthMask(!!pRenderState[i].uintValue);
3527	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3528	break;
3529
3530	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3531	enableCap = GL_ALPHA_TEST;
3532	val = pRenderState[i].uintValue;
3533	break;
3534
3535	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3536	enableCap = GL_DITHER;
3537	val = pRenderState[i].uintValue;
3538	break;
3539
3540	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3541	enableCap = GL_FOG;
3542	val = pRenderState[i].uintValue;
3543	break;
3544
3545	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3546	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3547	break;
3548
3549	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3550	enableCap = GL_LIGHTING;
3551	val = pRenderState[i].uintValue;
3552	break;
3553
3554	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3555	/* not applicable */
3556	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3557	break;
3558
3559	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3560	enableCap = GL_POINT_SPRITE_ARB;
3561	val = pRenderState[i].uintValue;
3562	break;
3563
3564	case SVGA3D_RS_POINTSIZE: /* float */
3565	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3566	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3567	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3568	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3569	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3570
3571	glPointSize(pRenderState[i].floatValue);
3572	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3573	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3574	break;
3575
3576	case SVGA3D_RS_POINTSIZEMIN: /* float */
3577	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3578	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3579	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3580	break;
3581
3582	case SVGA3D_RS_POINTSIZEMAX: /* float */
3583	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3584	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3585	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3586	break;
3587
3588	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3589	case SVGA3D_RS_POINTSCALE_A: /* float */
3590	case SVGA3D_RS_POINTSCALE_B: /* float */
3591	case SVGA3D_RS_POINTSCALE_C: /* float */
3592	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3593	break;
3594
3595	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3596	{
3597	GLfloat color[4]; /* red, green, blue, alpha */
3598
3599	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3600
3601	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3602	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3603	break;
3604	}
3605
3606	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3607	{
3608	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3609	for (uint32_t j = 0; j <= 5; j++)
3610	{
3611	if (pRenderState[i].uintValue & RT_BIT(j))
3612	glEnable(GL_CLIP_PLANE0 + j);
3613	else
3614	glDisable(GL_CLIP_PLANE0 + j);
3615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3616	}
3617	break;
3618	}
3619
3620	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3621	{
3622	GLfloat color[4]; /* red, green, blue, alpha */
3623
3624	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3625
3626	glFogfv(GL_FOG_COLOR, color);
3627	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3628	break;
3629	}
3630
3631	case SVGA3D_RS_FOGSTART: /* float */
3632	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3633	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3634	break;
3635
3636	case SVGA3D_RS_FOGEND: /* float */
3637	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3638	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3639	break;
3640
3641	case SVGA3D_RS_FOGDENSITY: /* float */
3642	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3643	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3644	break;
3645
3646	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3647	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3648	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3649	break;
3650
3651	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3652	{
3653	SVGA3dFogMode mode;
3654	mode.uintValue = pRenderState[i].uintValue;
3655
3656	enableCap = GL_FOG_MODE;
3657	switch (mode.s.function)
3658	{
3659	case SVGA3D_FOGFUNC_EXP:
3660	val = GL_EXP;
3661	break;
3662	case SVGA3D_FOGFUNC_EXP2:
3663	val = GL_EXP2;
3664	break;
3665	case SVGA3D_FOGFUNC_LINEAR:
3666	val = GL_LINEAR;
3667	break;
3668	default:
3669	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3670	break;
3671	}
3672
3673	/** @todo how to switch between vertex and pixel fog modes??? */
3674	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3675	#if 0
3676	/* The fog type determines the render state. */
3677	switch (mode.s.type)
3678	{
3679	case SVGA3D_FOGTYPE_VERTEX:
3680	renderState = D3DRS_FOGVERTEXMODE;
3681	break;
3682	case SVGA3D_FOGTYPE_PIXEL:
3683	renderState = D3DRS_FOGTABLEMODE;
3684	break;
3685	default:
3686	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3687	break;
3688	}
3689	#endif
3690
3691	/* Set the fog base to depth or range. */
3692	switch (mode.s.base)
3693	{
3694	case SVGA3D_FOGBASE_DEPTHBASED:
3695	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3696	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3697	break;
3698	case SVGA3D_FOGBASE_RANGEBASED:
3699	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3700	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3701	break;
3702	default:
3703	/* ignore */
3704	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3705	break;
3706	}
3707	break;
3708	}
3709
3710	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3711	{
3712	SVGA3dFillMode mode;
3713
3714	mode.uintValue = pRenderState[i].uintValue;
3715
3716	switch (mode.s.mode)
3717	{
3718	case SVGA3D_FILLMODE_POINT:
3719	val = GL_POINT;
3720	break;
3721	case SVGA3D_FILLMODE_LINE:
3722	val = GL_LINE;
3723	break;
3724	case SVGA3D_FILLMODE_FILL:
3725	val = GL_FILL;
3726	break;
3727	default:
3728	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3729	break;
3730	}
3731	/* @note only front and back faces */
3732	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3733	glPolygonMode(GL_FRONT_AND_BACK, val);
3734	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3735	break;
3736	}
3737
3738	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3739	switch (pRenderState[i].uintValue)
3740	{
3741	case SVGA3D_SHADEMODE_FLAT:
3742	val = GL_FLAT;
3743	break;
3744
3745	case SVGA3D_SHADEMODE_SMOOTH:
3746	val = GL_SMOOTH;
3747	break;
3748
3749	default:
3750	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3751	break;
3752	}
3753
3754	glShadeModel(val);
3755	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3756	break;
3757
3758	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3759	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3760	/** @todo */
3761	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3762	/*
3763	renderState = D3DRS_LINEPATTERN;
3764	val = pRenderState[i].uintValue;
3765	*/
3766	break;
3767
3768	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3769	enableCap = GL_LINE_SMOOTH;
3770	val = pRenderState[i].uintValue;
3771	break;
3772
3773	case SVGA3D_RS_LINEWIDTH: /* float */
3774	glLineWidth(pRenderState[i].floatValue);
3775	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3776	break;
3777
3778	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3779	{
3780	/* Refresh the blending state based on the new enable setting.
3781	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3782	*/
3783	static SVGA3dRenderStateName const saRefreshState[] =
3784	{
3785	SVGA3D_RS_SRCBLEND,
3786	SVGA3D_RS_BLENDEQUATION
3787	};
3788	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3789	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3790	{
3791	renderstate[j].state = saRefreshState[j];
3792	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3793	}
3794
3795	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3796	AssertRCReturn(rc, rc);
3797
3798	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3799	continue; /* Ignore if blend is enabled */
3800	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3801	} RT_FALL_THRU();
3802
3803	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3804	enableCap = GL_BLEND;
3805	val = pRenderState[i].uintValue;
3806	break;
3807
3808	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
3809	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
3810	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
3811	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
3812	{
3813	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
3814	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
3815
3816	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
3817	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3818	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
3819	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3820	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
3821	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3822	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
3823	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3824
3825	switch (pRenderState[i].state)
3826	{
3827	case SVGA3D_RS_SRCBLEND:
3828	srcRGB = blendop;
3829	break;
3830	case SVGA3D_RS_DSTBLEND:
3831	dstRGB = blendop;
3832	break;
3833	case SVGA3D_RS_SRCBLENDALPHA:
3834	srcAlpha = blendop;
3835	break;
3836	case SVGA3D_RS_DSTBLENDALPHA:
3837	dstAlpha = blendop;
3838	break;
3839	default:
3840	/* not possible; shut up gcc */
3841	AssertFailed();
3842	break;
3843	}
3844
3845	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3846	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
3847	else
3848	glBlendFunc(srcRGB, dstRGB);
3849	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3850	break;
3851	}
3852
3853	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
3854	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
3855	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3856	{
3857	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
3858	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
3859	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
3860	}
3861	else
3862	{
3863	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3864	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3865	#else
3866	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3867	#endif
3868	}
3869	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3870	break;
3871
3872	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
3873	{
3874	GLfloat red, green, blue, alpha;
3875
3876	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
3877
3878	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3879	glBlendColor(red, green, blue, alpha);
3880	#else
3881	pState->ext.glBlendColor(red, green, blue, alpha);
3882	#endif
3883	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3884	break;
3885	}
3886
3887	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
3888	{
3889	GLenum mode = GL_BACK; /* default for OpenGL */
3890
3891	switch (pRenderState[i].uintValue)
3892	{
3893	case SVGA3D_FACE_NONE:
3894	break;
3895	case SVGA3D_FACE_FRONT:
3896	mode = GL_FRONT;
3897	break;
3898	case SVGA3D_FACE_BACK:
3899	mode = GL_BACK;
3900	break;
3901	case SVGA3D_FACE_FRONT_BACK:
3902	mode = GL_FRONT_AND_BACK;
3903	break;
3904	default:
3905	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3906	break;
3907	}
3908	enableCap = GL_CULL_FACE;
3909	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
3910	{
3911	glCullFace(mode);
3912	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3913	val = 1;
3914	}
3915	else
3916	val = 0;
3917	break;
3918	}
3919
3920	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
3921	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
3922	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3923	break;
3924
3925	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
3926	{
3927	GLclampf ref;
3928
3929	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
3930	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3931	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
3932	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3933	break;
3934	}
3935
3936	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
3937	{
3938	GLint func;
3939
3940	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
3941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3942	glAlphaFunc(func, pRenderState[i].floatValue);
3943	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3944	break;
3945	}
3946
3947	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
3948	{
3949	/* Refresh the stencil state based on the new enable setting.
3950	* This will take existing states and set them using either glStencil or glStencil*Separate.
3951	*/
3952	static SVGA3dRenderStateName const saRefreshState[] =
3953	{
3954	SVGA3D_RS_STENCILFUNC,
3955	SVGA3D_RS_STENCILFAIL,
3956	SVGA3D_RS_CCWSTENCILFUNC,
3957	SVGA3D_RS_CCWSTENCILFAIL
3958	};
3959	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3960	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3961	{
3962	renderstate[j].state = saRefreshState[j];
3963	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3964	}
3965
3966	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
3967	AssertRCReturn(rc, rc);
3968
3969	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
3970	continue; /* Ignore if stencil is enabled */
3971	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
3972	} RT_FALL_THRU();
3973
3974	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
3975	enableCap = GL_STENCIL_TEST;
3976	val = pRenderState[i].uintValue;
3977	break;
3978
3979	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
3980	case SVGA3D_RS_STENCILREF: /* uint32_t */
3981	case SVGA3D_RS_STENCILMASK: /* uint32_t */
3982	{
3983	GLint func, ref;
3984	GLuint mask;
3985
3986	/* Query current values to have all parameters for glStencilFunc[Separate]. */
3987	glGetIntegerv(GL_STENCIL_FUNC, &func);
3988	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3989	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
3990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3991	glGetIntegerv(GL_STENCIL_REF, &ref);
3992	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3993
3994	/* Update the changed value. */
3995	switch (pRenderState[i].state)
3996	{
3997	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
3998	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
3999	break;
4000
4001	case SVGA3D_RS_STENCILREF: /* uint32_t */
4002	ref = pRenderState[i].uintValue;
4003	break;
4004
4005	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4006	mask = pRenderState[i].uintValue;
4007	break;
4008
4009	default:
4010	/* not possible; shut up gcc */
4011	AssertFailed();
4012	break;
4013	}
4014
4015	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4016	{
4017	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4018	}
4019	else
4020	{
4021	glStencilFunc(func, ref, mask);
4022	}
4023	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4024	break;
4025	}
4026
4027	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4028	glStencilMask(pRenderState[i].uintValue);
4029	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4030	break;
4031
4032	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4033	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4034	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4035	{
4036	GLint sfail, dpfail, dppass;
4037	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4038
4039	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4041	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4043	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4044	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4045
4046	switch (pRenderState[i].state)
4047	{
4048	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4049	sfail = stencilop;
4050	break;
4051	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4052	dpfail = stencilop;
4053	break;
4054	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4055	dppass = stencilop;
4056	break;
4057	default:
4058	/* not possible; shut up gcc */
4059	AssertFailed();
4060	break;
4061	}
4062	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4063	{
4064	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4065	}
4066	else
4067	{
4068	glStencilOp(sfail, dpfail, dppass);
4069	}
4070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4071	break;
4072	}
4073
4074	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4075	{
4076	GLint ref;
4077	GLuint mask;
4078	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4079
4080	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4081	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4083	glGetIntegerv(GL_STENCIL_REF, &ref);
4084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4085
4086	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4088	break;
4089	}
4090
4091	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4092	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4093	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4094	{
4095	GLint sfail, dpfail, dppass;
4096	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4097
4098	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4100	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4101	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4102	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4104
4105	switch (pRenderState[i].state)
4106	{
4107	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4108	sfail = stencilop;
4109	break;
4110	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4111	dpfail = stencilop;
4112	break;
4113	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4114	dppass = stencilop;
4115	break;
4116	default:
4117	/* not possible; shut up gcc */
4118	AssertFailed();
4119	break;
4120	}
4121	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4123	break;
4124	}
4125
4126	case SVGA3D_RS_ZBIAS: /* float */
4127	/** @todo unknown meaning; depth bias is not identical
4128	renderState = D3DRS_DEPTHBIAS;
4129	val = pRenderState[i].uintValue;
4130	*/
4131	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4132	break;
4133
4134	case SVGA3D_RS_DEPTHBIAS: /* float */
4135	{
4136	GLfloat factor;
4137
4138	/** @todo not sure if the d3d & ogl definitions are identical. */
4139
4140	/* Do not change the factor part. */
4141	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4142	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4143
4144	glPolygonOffset(factor, pRenderState[i].floatValue);
4145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4146	break;
4147	}
4148
4149	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4150	{
4151	GLfloat units;
4152
4153	/** @todo not sure if the d3d & ogl definitions are identical. */
4154
4155	/* Do not change the factor part. */
4156	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4157	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4158
4159	glPolygonOffset(pRenderState[i].floatValue, units);
4160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4161	break;
4162	}
4163
4164	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4165	{
4166	GLboolean red, green, blue, alpha;
4167	SVGA3dColorMask mask;
4168
4169	mask.uintValue = pRenderState[i].uintValue;
4170
4171	red = mask.s.red;
4172	green = mask.s.green;
4173	blue = mask.s.blue;
4174	alpha = mask.s.alpha;
4175
4176	glColorMask(red, green, blue, alpha);
4177	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4178	break;
4179	}
4180
4181	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4182	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4183	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4184	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4185	break;
4186
4187	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4188	enableCap = GL_SCISSOR_TEST;
4189	val = pRenderState[i].uintValue;
4190	break;
4191
4192	#if 0
4193	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4194	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4195	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4196	val = pRenderState[i].uintValue;
4197	break;
4198
4199	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4200	renderState = D3DRS_SPECULARMATERIALSOURCE;
4201	val = pRenderState[i].uintValue;
4202	break;
4203
4204	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4205	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4206	val = pRenderState[i].uintValue;
4207	break;
4208
4209	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4210	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4211	val = pRenderState[i].uintValue;
4212	break;
4213	#endif
4214
4215	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4216	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4217	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4218	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4219	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4220	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4221	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4222	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4223	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4224	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4225	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4226	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4227	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4228	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4229	break;
4230
4231	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4232	case SVGA3D_RS_TWEENFACTOR: /* float */
4233	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4234	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4235	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4236	break;
4237
4238	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4239	enableCap = GL_MULTISAMPLE;
4240	val = pRenderState[i].uintValue;
4241	break;
4242
4243	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4244	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4245	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4246	break;
4247
4248	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4249	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4250	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4251	/*
4252	renderState = D3DRS_COORDINATETYPE;
4253	val = pRenderState[i].uintValue;
4254	*/
4255	break;
4256
4257	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4258	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4259	/* Invert the selected mode because of y-inversion (?) */
4260	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4262	break;
4263
4264	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4265	//AssertFailed();
4266	/*
4267	D3DRS_SRGBWRITEENABLE ??
4268	renderState = D3DRS_OUTPUTGAMMA;
4269	val = pRenderState[i].uintValue;
4270	*/
4271	break;
4272
4273	#if 0
4274
4275	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4276	//AssertFailed();
4277	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4278	val = pRenderState[i].uintValue;
4279	break;
4280
4281	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4282	renderState = D3DRS_TEXTUREFACTOR;
4283	val = pRenderState[i].uintValue;
4284	break;
4285
4286	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4287	renderState = D3DRS_LOCALVIEWER;
4288	val = pRenderState[i].uintValue;
4289	break;
4290
4291	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4292	AssertFailed();
4293	/*
4294	renderState = D3DRS_ZVISIBLE;
4295	val = pRenderState[i].uintValue;
4296	*/
4297	break;
4298
4299	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4300	renderState = D3DRS_CLIPPING;
4301	val = pRenderState[i].uintValue;
4302	break;
4303
4304	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4305	glTexParameter GL_TEXTURE_WRAP_S
4306	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4307	renderState = D3DRS_WRAP0;
4308	val = pRenderState[i].uintValue;
4309	break;
4310
4311	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4312	glTexParameter GL_TEXTURE_WRAP_T
4313	renderState = D3DRS_WRAP1;
4314	val = pRenderState[i].uintValue;
4315	break;
4316
4317	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4318	glTexParameter GL_TEXTURE_WRAP_R
4319	renderState = D3DRS_WRAP2;
4320	val = pRenderState[i].uintValue;
4321	break;
4322
4323
4324	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4325	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4326	val = pRenderState[i].uintValue;
4327	break;
4328
4329
4330	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4331	renderState = D3DRS_BLENDOPALPHA;
4332	val = pRenderState[i].uintValue;
4333	break;
4334
4335	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4336	AssertFailed();
4337	/*
4338	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4339	val = pRenderState[i].uintValue;
4340	*/
4341	break;
4342
4343	#endif
4344	default:
4345	AssertFailed();
4346	break;
4347	}
4348
4349	if (enableCap != ~(GLenum)0)
4350	{
4351	if (val)
4352	glEnable(enableCap);
4353	else
4354	glDisable(enableCap);
4355	}
4356	}
4357
4358	return VINF_SUCCESS;
4359	}
4360
4361	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4362	{
4363	PVMSVGA3DCONTEXT pContext;
4364	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4365	PVMSVGA3DSURFACE pRenderTarget;
4366
4367	AssertReturn(pState, VERR_NO_MEMORY);
4368	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4369
4370	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4371
4372	if ( cid >= pState->cContexts
4373	\|\| pState->papContexts[cid]->id != cid)
4374	{
4375	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4376	return VERR_INVALID_PARAMETER;
4377	}
4378	pContext = pState->papContexts[cid];
4379	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4380
4381	/* Save for vm state save/restore. */
4382	pContext->state.aRenderTargets[type] = target.sid;
4383
4384	if (target.sid == SVGA3D_INVALID_ID)
4385	{
4386	/* Disable render target. */
4387	switch (type)
4388	{
4389	case SVGA3D_RT_DEPTH:
4390	case SVGA3D_RT_STENCIL:
4391	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4392	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4393	break;
4394
4395	case SVGA3D_RT_COLOR0:
4396	case SVGA3D_RT_COLOR1:
4397	case SVGA3D_RT_COLOR2:
4398	case SVGA3D_RT_COLOR3:
4399	case SVGA3D_RT_COLOR4:
4400	case SVGA3D_RT_COLOR5:
4401	case SVGA3D_RT_COLOR6:
4402	case SVGA3D_RT_COLOR7:
4403	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4404	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4405	break;
4406
4407	default:
4408	AssertFailedReturn(VERR_INVALID_PARAMETER);
4409	}
4410	return VINF_SUCCESS;
4411	}
4412
4413	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4414	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4415	pRenderTarget = pState->papSurfaces[target.sid];
4416
4417	switch (type)
4418	{
4419	case SVGA3D_RT_DEPTH:
4420	case SVGA3D_RT_STENCIL:
4421	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4422	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4423	{
4424	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4425	pContext = &pState->SharedCtx;
4426	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4427
4428	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4429	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4430
4431	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4432	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4433
4434	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4435	pRenderTarget->internalFormatGL,
4436	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4437	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4439
4440	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4442
4443	pContext = pState->papContexts[cid];
4444	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4445	pRenderTarget->idWeakContextAssociation = cid;
4446	}
4447
4448	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4450	Assert(!pRenderTarget->fDirty);
4451	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4452
4453	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4454
4455	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4456	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4457	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4458	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4459	break;
4460
4461	case SVGA3D_RT_COLOR0:
4462	case SVGA3D_RT_COLOR1:
4463	case SVGA3D_RT_COLOR2:
4464	case SVGA3D_RT_COLOR3:
4465	case SVGA3D_RT_COLOR4:
4466	case SVGA3D_RT_COLOR5:
4467	case SVGA3D_RT_COLOR6:
4468	case SVGA3D_RT_COLOR7:
4469	{
4470	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4471	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4472	{
4473	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));
4474	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4475	AssertRCReturn(rc, rc);
4476	}
4477
4478	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4479	Assert(!pRenderTarget->fDirty);
4480
4481	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4482
4483	GLenum textarget;
4484	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4485	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4486	else
4487	textarget = GL_TEXTURE_2D;
4488	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4489	textarget, pRenderTarget->oglId.texture, target.mipmap);
4490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4491
4492	#ifdef DEBUG
4493	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4494	if (status != GL_FRAMEBUFFER_COMPLETE)
4495	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4496	#endif
4497	/** @todo use glDrawBuffers too? */
4498	break;
4499	}
4500
4501	default:
4502	AssertFailedReturn(VERR_INVALID_PARAMETER);
4503	}
4504
4505	return VINF_SUCCESS;
4506	}
4507
4508	#if 0
4509	/**
4510	* Convert SVGA texture combiner value to its D3D equivalent
4511	*/
4512	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4513	{
4514	switch (value)
4515	{
4516	case SVGA3D_TC_DISABLE:
4517	return D3DTOP_DISABLE;
4518	case SVGA3D_TC_SELECTARG1:
4519	return D3DTOP_SELECTARG1;
4520	case SVGA3D_TC_SELECTARG2:
4521	return D3DTOP_SELECTARG2;
4522	case SVGA3D_TC_MODULATE:
4523	return D3DTOP_MODULATE;
4524	case SVGA3D_TC_ADD:
4525	return D3DTOP_ADD;
4526	case SVGA3D_TC_ADDSIGNED:
4527	return D3DTOP_ADDSIGNED;
4528	case SVGA3D_TC_SUBTRACT:
4529	return D3DTOP_SUBTRACT;
4530	case SVGA3D_TC_BLENDTEXTUREALPHA:
4531	return D3DTOP_BLENDTEXTUREALPHA;
4532	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4533	return D3DTOP_BLENDDIFFUSEALPHA;
4534	case SVGA3D_TC_BLENDCURRENTALPHA:
4535	return D3DTOP_BLENDCURRENTALPHA;
4536	case SVGA3D_TC_BLENDFACTORALPHA:
4537	return D3DTOP_BLENDFACTORALPHA;
4538	case SVGA3D_TC_MODULATE2X:
4539	return D3DTOP_MODULATE2X;
4540	case SVGA3D_TC_MODULATE4X:
4541	return D3DTOP_MODULATE4X;
4542	case SVGA3D_TC_DSDT:
4543	AssertFailed(); /** @todo ??? */
4544	return D3DTOP_DISABLE;
4545	case SVGA3D_TC_DOTPRODUCT3:
4546	return D3DTOP_DOTPRODUCT3;
4547	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4548	return D3DTOP_BLENDTEXTUREALPHAPM;
4549	case SVGA3D_TC_ADDSIGNED2X:
4550	return D3DTOP_ADDSIGNED2X;
4551	case SVGA3D_TC_ADDSMOOTH:
4552	return D3DTOP_ADDSMOOTH;
4553	case SVGA3D_TC_PREMODULATE:
4554	return D3DTOP_PREMODULATE;
4555	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4556	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4557	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4558	return D3DTOP_MODULATECOLOR_ADDALPHA;
4559	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4560	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4561	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4562	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4563	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4564	return D3DTOP_BUMPENVMAPLUMINANCE;
4565	case SVGA3D_TC_MULTIPLYADD:
4566	return D3DTOP_MULTIPLYADD;
4567	case SVGA3D_TC_LERP:
4568	return D3DTOP_LERP;
4569	default:
4570	AssertFailed();
4571	return D3DTOP_DISABLE;
4572	}
4573	}
4574
4575	/**
4576	* Convert SVGA texture arg data value to its D3D equivalent
4577	*/
4578	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4579	{
4580	switch (value)
4581	{
4582	case SVGA3D_TA_CONSTANT:
4583	return D3DTA_CONSTANT;
4584	case SVGA3D_TA_PREVIOUS:
4585	return D3DTA_CURRENT; /* current = previous */
4586	case SVGA3D_TA_DIFFUSE:
4587	return D3DTA_DIFFUSE;
4588	case SVGA3D_TA_TEXTURE:
4589	return D3DTA_TEXTURE;
4590	case SVGA3D_TA_SPECULAR:
4591	return D3DTA_SPECULAR;
4592	default:
4593	AssertFailed();
4594	return 0;
4595	}
4596	}
4597
4598	/**
4599	* Convert SVGA texture transform flag value to its D3D equivalent
4600	*/
4601	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4602	{
4603	switch (value)
4604	{
4605	case SVGA3D_TEX_TRANSFORM_OFF:
4606	return D3DTTFF_DISABLE;
4607	case SVGA3D_TEX_TRANSFORM_S:
4608	return D3DTTFF_COUNT1; /** @todo correct? */
4609	case SVGA3D_TEX_TRANSFORM_T:
4610	return D3DTTFF_COUNT2; /** @todo correct? */
4611	case SVGA3D_TEX_TRANSFORM_R:
4612	return D3DTTFF_COUNT3; /** @todo correct? */
4613	case SVGA3D_TEX_TRANSFORM_Q:
4614	return D3DTTFF_COUNT4; /** @todo correct? */
4615	case SVGA3D_TEX_PROJECTED:
4616	return D3DTTFF_PROJECTED;
4617	default:
4618	AssertFailed();
4619	return 0;
4620	}
4621	}
4622	#endif
4623
4624	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4625	{
4626	switch (value)
4627	{
4628	case SVGA3D_TEX_ADDRESS_WRAP:
4629	return GL_REPEAT;
4630	case SVGA3D_TEX_ADDRESS_MIRROR:
4631	return GL_MIRRORED_REPEAT;
4632	case SVGA3D_TEX_ADDRESS_CLAMP:
4633	return GL_CLAMP_TO_EDGE;
4634	case SVGA3D_TEX_ADDRESS_BORDER:
4635	return GL_CLAMP_TO_BORDER;
4636	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4637	AssertFailed();
4638	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4639
4640	case SVGA3D_TEX_ADDRESS_EDGE:
4641	case SVGA3D_TEX_ADDRESS_INVALID:
4642	default:
4643	AssertFailed();
4644	return GL_REPEAT; /* default */
4645	}
4646	}
4647
4648	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4649	{
4650	switch (value)
4651	{
4652	case SVGA3D_TEX_FILTER_NONE:
4653	case SVGA3D_TEX_FILTER_LINEAR:
4654	return GL_LINEAR;
4655	case SVGA3D_TEX_FILTER_NEAREST:
4656	return GL_NEAREST;
4657	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4658	/** @todo */
4659	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4660	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4661	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4662	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4663	default:
4664	AssertFailed();
4665	return GL_LINEAR; /* default */
4666	}
4667	}
4668
4669	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4670	{
4671	/* flip the red and blue bytes */
4672	uint8_t blue = value & 0xff;
4673	uint8_t red = (value >> 16) & 0xff;
4674	return (value & 0xff00ff00) \| red \| (blue << 16);
4675	}
4676
4677	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4678	{
4679	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4680	GLenum currentStage = ~(GLenum)0;
4681	PVMSVGA3DCONTEXT pContext;
4682	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4683	AssertReturn(pState, VERR_NO_MEMORY);
4684
4685	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4686
4687	if ( cid >= pState->cContexts
4688	\|\| pState->papContexts[cid]->id != cid)
4689	{
4690	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4691	return VERR_INVALID_PARAMETER;
4692	}
4693	pContext = pState->papContexts[cid];
4694	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4695
4696	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4697	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4698
4699	for (uint32_t i = 0; i < cTextureStates; ++i)
4700	{
4701	GLenum textureType = ~(GLenum)0;
4702	#if 0
4703	GLenum samplerType = ~(GLenum)0;
4704	#endif
4705
4706	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4707	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4708
4709	/* Record the texture state for vm state saving. */
4710	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4711	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4712	{
4713	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4714	}
4715
4716	/* Activate the right texture unit for subsequent texture state changes. */
4717	if (pTextureState[i].stage != currentStage \|\| i == 0)
4718	{
4719	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4720	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4721	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4722	{
4723	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4724	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4725	currentStage = pTextureState[i].stage;
4726	}
4727	else
4728	{
4729	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4730	continue;
4731	}
4732
4733	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4734	{
4735	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4736	AssertRCReturn(rc, rc);
4737	}
4738	else
4739	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4740	}
4741
4742	switch (pTextureState[i].name)
4743	{
4744	case SVGA3D_TS_BUMPENVMAT00: /* float */
4745	case SVGA3D_TS_BUMPENVMAT01: /* float */
4746	case SVGA3D_TS_BUMPENVMAT10: /* float */
4747	case SVGA3D_TS_BUMPENVMAT11: /* float */
4748	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4749	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4750	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4751	break;
4752
4753	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4754	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4755	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4756	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4757	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4758	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4759	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4760	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4761	/** @todo not used by MesaGL */
4762	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4763	break;
4764	#if 0
4765
4766	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4767	textureType = D3DTSS_TEXCOORDINDEX;
4768	val = pTextureState[i].value;
4769	break;
4770
4771	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4772	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4773	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4774	break;
4775	#endif
4776
4777	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4778	{
4779	uint32_t const sid = pTextureState[i].value;
4780
4781	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4782	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4783
4784	/* Only is texture actually changed. */ /// @todo needs testing.
4785	if (pContext->aSidActiveTextures[currentStage] != sid)
4786	{
4787	if (pCurrentTextureSurface)
4788	{
4789	/* Unselect the currently associated texture. */
4790	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4792
4793	/* Necessary for the fixed pipeline. */
4794	glDisable(pCurrentTextureSurface->targetGL);
4795	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4796
4797	pCurrentTextureSurface = NULL;
4798	}
4799
4800	if (sid == SVGA3D_INVALID_ID)
4801	{
4802	Assert(pCurrentTextureSurface == NULL);
4803	}
4804	else
4805	{
4806	PVMSVGA3DSURFACE pSurface;
4807	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
4808	AssertRCReturn(rc, rc);
4809
4810	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
4811	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
4812	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
4813
4814	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
4815	{
4816	Log(("CreateTexture (%d,%d) levels=%d\n",
4817	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
4818	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
4819	AssertRCReturn(rc, rc);
4820	}
4821
4822	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
4823	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4824
4825	/* Necessary for the fixed pipeline. */
4826	glEnable(pSurface->targetGL);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828
4829	/* Remember the currently active texture. */
4830	pCurrentTextureSurface = pSurface;
4831
4832	/* Recreate the texture state as glBindTexture resets them all (sigh). */
4833	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
4834	{
4835	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
4836	{
4837	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
4838
4839	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
4840	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
4841	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
4842	}
4843	}
4844	}
4845
4846	pContext->aSidActiveTextures[currentStage] = sid;
4847	}
4848
4849	/* Finished; continue with the next one. */
4850	continue;
4851	}
4852
4853	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
4854	textureType = GL_TEXTURE_WRAP_R; /* R = W */
4855	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4856	break;
4857
4858	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
4859	textureType = GL_TEXTURE_WRAP_S; /* S = U */
4860	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4861	break;
4862
4863	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
4864	textureType = GL_TEXTURE_WRAP_T; /* T = V */
4865	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4866	break;
4867
4868	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
4869	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
4870	{
4871	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
4872	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
4873
4874	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
4875	textureType = GL_TEXTURE_MIN_FILTER;
4876	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
4877	{
4878	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
4879	{
4880	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4881	val = GL_NEAREST_MIPMAP_LINEAR;
4882	else
4883	val = GL_NEAREST_MIPMAP_NEAREST;
4884	}
4885	else
4886	{
4887	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4888	val = GL_LINEAR_MIPMAP_LINEAR;
4889	else
4890	val = GL_LINEAR_MIPMAP_NEAREST;
4891	}
4892	}
4893	else
4894	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
4895	break;
4896	}
4897
4898	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
4899	textureType = GL_TEXTURE_MAG_FILTER;
4900	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
4901	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
4902	break;
4903
4904	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
4905	{
4906	GLfloat color[4]; /* red, green, blue, alpha */
4907	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
4908
4909	GLenum targetGL;
4910	if (pCurrentTextureSurface)
4911	targetGL = pCurrentTextureSurface->targetGL;
4912	else
4913	{
4914	/* No texture bound, assume 2D. */
4915	targetGL = GL_TEXTURE_2D;
4916	}
4917
4918	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
4919	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4920	break;
4921	}
4922
4923	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
4924	{
4925	GLenum targetGL;
4926	if (pCurrentTextureSurface)
4927	targetGL = pCurrentTextureSurface->targetGL;
4928	else
4929	{
4930	/* No texture bound, assume 2D. */
4931	targetGL = GL_TEXTURE_2D;
4932	}
4933
4934	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
4935	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4936	break;
4937	}
4938
4939	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
4940	textureType = GL_TEXTURE_BASE_LEVEL;
4941	val = pTextureState[i].value;
4942	break;
4943
4944	#if 0
4945	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
4946	samplerType = D3DSAMP_MAXANISOTROPY;
4947	val = pTextureState[i].value; /* Identical?? */
4948	break;
4949
4950	case SVGA3D_TS_GAMMA: /* float */
4951	samplerType = D3DSAMP_SRGBTEXTURE;
4952	/* Boolean in D3D */
4953	if (pTextureState[i].floatValue == 1.0f)
4954	val = FALSE;
4955	else
4956	val = TRUE;
4957	break;
4958	#endif
4959	/* Internal commands, that don't map directly to the SetTextureStageState API. */
4960	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
4961	AssertFailed();
4962	break;
4963
4964	default:
4965	//AssertFailed();
4966	break;
4967	}
4968
4969	if (textureType != ~(GLenum)0)
4970	{
4971	GLenum targetGL;
4972	if (pCurrentTextureSurface)
4973	targetGL = pCurrentTextureSurface->targetGL;
4974	else
4975	{
4976	/* No texture bound, assume 2D. */
4977	targetGL = GL_TEXTURE_2D;
4978	}
4979
4980	glTexParameteri(targetGL, textureType, val);
4981	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4982	}
4983	}
4984
4985	return VINF_SUCCESS;
4986	}
4987
4988	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
4989	{
4990	PVMSVGA3DCONTEXT pContext;
4991	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4992	AssertReturn(pState, VERR_NO_MEMORY);
4993	GLenum oglFace;
4994
4995	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
4996
4997	if ( cid >= pState->cContexts
4998	\|\| pState->papContexts[cid]->id != cid)
4999	{
5000	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5001	return VERR_INVALID_PARAMETER;
5002	}
5003	pContext = pState->papContexts[cid];
5004	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5005
5006	switch (face)
5007	{
5008	case SVGA3D_FACE_NONE:
5009	case SVGA3D_FACE_FRONT:
5010	oglFace = GL_FRONT;
5011	break;
5012
5013	case SVGA3D_FACE_BACK:
5014	oglFace = GL_BACK;
5015	break;
5016
5017	case SVGA3D_FACE_FRONT_BACK:
5018	oglFace = GL_FRONT_AND_BACK;
5019	break;
5020
5021	default:
5022	AssertFailedReturn(VERR_INVALID_PARAMETER);
5023	}
5024
5025	/* Save for vm state save/restore. */
5026	pContext->state.aMaterial[face].fValid = true;
5027	pContext->state.aMaterial[face].material = *pMaterial;
5028	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5029
5030	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5031	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5032	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5033	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5034	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5036
5037	return VINF_SUCCESS;
5038	}
5039
5040	/** @todo Move into separate library as we are using logic from Wine here. */
5041	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5042	{
5043	PVMSVGA3DCONTEXT pContext;
5044	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5045	AssertReturn(pState, VERR_NO_MEMORY);
5046	float QuadAttenuation;
5047
5048	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5049
5050	if ( cid >= pState->cContexts
5051	\|\| pState->papContexts[cid]->id != cid)
5052	{
5053	Log(("vmsvga3dSetLightData invalid context id!\n"));
5054	return VERR_INVALID_PARAMETER;
5055	}
5056	pContext = pState->papContexts[cid];
5057	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5058
5059	/* Store for vm state save/restore */
5060	if (index < SVGA3D_MAX_LIGHTS)
5061	{
5062	pContext->state.aLightData[index].fValidData = true;
5063	pContext->state.aLightData[index].data = *pData;
5064	}
5065	else
5066	AssertFailed();
5067
5068	if ( pData->attenuation0 < 0.0f
5069	\|\| pData->attenuation1 < 0.0f
5070	\|\| pData->attenuation2 < 0.0f)
5071	{
5072	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5073	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5074	}
5075
5076	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5077	glMatrixMode(GL_MODELVIEW);
5078	glPushMatrix();
5079	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5080
5081	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5082	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5083	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5084
5085	if (pData->range * pData->range >= FLT_MIN)
5086	QuadAttenuation = 1.4f / (pData->range * pData->range);
5087	else
5088	QuadAttenuation = 0.0f;
5089
5090	switch (pData->type)
5091	{
5092	case SVGA3D_LIGHTTYPE_POINT:
5093	{
5094	GLfloat position[4];
5095
5096	position[0] = pData->position[0];
5097	position[1] = pData->position[1];
5098	position[2] = pData->position[2];
5099	position[3] = 1.0f;
5100
5101	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5102	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5103
5104	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5105	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5106
5107	/* Attenuation - Are these right? guessing... */
5108	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5109	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5110
5111	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5112	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5113
5114	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5115	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5116
5117	/** @todo range */
5118	break;
5119	}
5120
5121	case SVGA3D_LIGHTTYPE_SPOT1:
5122	{
5123	GLfloat exponent;
5124	GLfloat position[4];
5125	const GLfloat pi = 4.0f * atanf(1.0f);
5126
5127	position[0] = pData->position[0];
5128	position[1] = pData->position[1];
5129	position[2] = pData->position[2];
5130	position[3] = 1.0f;
5131
5132	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5133	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5134
5135	position[0] = pData->direction[0];
5136	position[1] = pData->direction[1];
5137	position[2] = pData->direction[2];
5138	position[3] = 1.0f;
5139
5140	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5141	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5142
5143	/*
5144	* opengl-ish and d3d-ish spot lights use too different models for the
5145	* light "intensity" as a function of the angle towards the main light direction,
5146	* so we only can approximate very roughly.
5147	* however spot lights are rather rarely used in games (if ever used at all).
5148	* furthermore if still used, probably nobody pays attention to such details.
5149	*/
5150	if (pData->falloff == 0)
5151	{
5152	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5153	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5154	* will always be 1.0 for both of them, and we don't have to care for the
5155	* rest of the rather complex calculation
5156	*/
5157	exponent = 0.0f;
5158	}
5159	else
5160	{
5161	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5162	if (rho < 0.0001f)
5163	rho = 0.0001f;
5164	exponent = -0.3f/log(cos(rho/2));
5165	}
5166	if (exponent > 128.0f)
5167	exponent = 128.0f;
5168
5169	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5170	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5171
5172	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5173	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5174
5175	/* Attenuation - Are these right? guessing... */
5176	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5177	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5178
5179	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5180	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5181
5182	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5183	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5184
5185	/** @todo range */
5186	break;
5187	}
5188
5189	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5190	{
5191	GLfloat position[4];
5192
5193	position[0] = -pData->direction[0];
5194	position[1] = -pData->direction[1];
5195	position[2] = -pData->direction[2];
5196	position[3] = 0.0f;
5197
5198	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5199	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5200
5201	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5202	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5203
5204	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5205	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5206	break;
5207	}
5208
5209	case SVGA3D_LIGHTTYPE_SPOT2:
5210	default:
5211	Log(("Unsupported light type!!\n"));
5212	return VERR_INVALID_PARAMETER;
5213	}
5214
5215	/* Restore the modelview matrix */
5216	glPopMatrix();
5217
5218	return VINF_SUCCESS;
5219	}
5220
5221	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5222	{
5223	PVMSVGA3DCONTEXT pContext;
5224	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5225	AssertReturn(pState, VERR_NO_MEMORY);
5226
5227	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5228
5229	if ( cid >= pState->cContexts
5230	\|\| pState->papContexts[cid]->id != cid)
5231	{
5232	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5233	return VERR_INVALID_PARAMETER;
5234	}
5235	pContext = pState->papContexts[cid];
5236	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5237
5238	/* Store for vm state save/restore */
5239	if (index < SVGA3D_MAX_LIGHTS)
5240	pContext->state.aLightData[index].fEnabled = !!enabled;
5241	else
5242	AssertFailed();
5243
5244	if (enabled)
5245	{
5246	/* Load the default settings if none have been set yet. */
5247	if (!pContext->state.aLightData[index].fValidData)
5248	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5249	glEnable(GL_LIGHT0 + index);
5250	}
5251	else
5252	glDisable(GL_LIGHT0 + index);
5253
5254	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5255	return VINF_SUCCESS;
5256	}
5257
5258	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5259	{
5260	PVMSVGA3DCONTEXT pContext;
5261	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5262	AssertReturn(pState, VERR_NO_MEMORY);
5263
5264	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5265
5266	if ( cid >= pState->cContexts
5267	\|\| pState->papContexts[cid]->id != cid)
5268	{
5269	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5270	return VERR_INVALID_PARAMETER;
5271	}
5272	pContext = pState->papContexts[cid];
5273	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5274
5275	/* Save for vm state save/restore. */
5276	pContext->state.RectViewPort = *pRect;
5277	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5278
5279	/** @todo y-inversion for partial viewport coordinates? */
5280	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5281	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5282
5283	/* Reset the projection matrix as that relies on the viewport setting. */
5284	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5285	{
5286	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5287	}
5288	else
5289	{
5290	float matrix[16];
5291
5292	/* identity matrix if no matrix set. */
5293	memset(matrix, 0, sizeof(matrix));
5294	matrix[0] = 1.0;
5295	matrix[5] = 1.0;
5296	matrix[10] = 1.0;
5297	matrix[15] = 1.0;
5298	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5299	}
5300
5301	return VINF_SUCCESS;
5302	}
5303
5304	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5305	{
5306	PVMSVGA3DCONTEXT pContext;
5307	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5308	AssertReturn(pState, VERR_NO_MEMORY);
5309	double oglPlane[4];
5310
5311	Log(("vmsvga3dSetClipPlane cid=%x %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5312	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5313
5314	if ( cid >= pState->cContexts
5315	\|\| pState->papContexts[cid]->id != cid)
5316	{
5317	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5318	return VERR_INVALID_PARAMETER;
5319	}
5320	pContext = pState->papContexts[cid];
5321	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5322
5323	/* Store for vm state save/restore. */
5324	pContext->state.aClipPlane[index].fValid = true;
5325	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5326
5327	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5328	oglPlane[0] = (double)plane[0];
5329	oglPlane[1] = (double)plane[1];
5330	oglPlane[2] = (double)plane[2];
5331	oglPlane[3] = (double)plane[3];
5332
5333	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5334	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5335
5336	return VINF_SUCCESS;
5337	}
5338
5339	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5340	{
5341	PVMSVGA3DCONTEXT pContext;
5342	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5343	AssertReturn(pState, VERR_NO_MEMORY);
5344
5345	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5346
5347	if ( cid >= pState->cContexts
5348	\|\| pState->papContexts[cid]->id != cid)
5349	{
5350	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5351	return VERR_INVALID_PARAMETER;
5352	}
5353	pContext = pState->papContexts[cid];
5354	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5355
5356	/* Store for vm state save/restore. */
5357	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5358	pContext->state.RectScissor = *pRect;
5359
5360	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5361	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5362
5363	return VINF_SUCCESS;
5364	}
5365
5366	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5367	{
5368	/* Convert byte color components to float (0-1.0) */
5369	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5370	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5371	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5372	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5373	}
5374
5375	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5376	uint32_t cRects, SVGA3dRect *pRect)
5377	{
5378	GLbitfield mask = 0;
5379	PVMSVGA3DCONTEXT pContext;
5380	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5381	AssertReturn(pState, VERR_NO_MEMORY);
5382	GLboolean fDepthWriteEnabled = GL_FALSE;
5383
5384	Log(("vmsvga3dCommandClear cid=%x clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5385
5386	if ( cid >= pState->cContexts
5387	\|\| pState->papContexts[cid]->id != cid)
5388	{
5389	Log(("vmsvga3dCommandClear invalid context id!\n"));
5390	return VERR_INVALID_PARAMETER;
5391	}
5392	pContext = pState->papContexts[cid];
5393	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5394
5395	if (clearFlag & SVGA3D_CLEAR_COLOR)
5396	{
5397	GLfloat red, green, blue, alpha;
5398
5399	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5400
5401	/* Set the color clear value. */
5402	glClearColor(red, green, blue, alpha);
5403
5404	mask \|= GL_COLOR_BUFFER_BIT;
5405	}
5406	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5407	{
5408	/** @todo possibly the same problem as with glDepthMask */
5409	glClearStencil(stencil);
5410	mask \|= GL_STENCIL_BUFFER_BIT;
5411	}
5412	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5413	{
5414	glClearDepth((GLdouble)depth);
5415	mask \|= GL_DEPTH_BUFFER_BIT;
5416
5417	/* glClear will not clear the depth buffer if writing is disabled. */
5418	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5419	if (fDepthWriteEnabled == GL_FALSE)
5420	glDepthMask(GL_TRUE);
5421	}
5422
5423	if (cRects)
5424	{
5425	/* Save the current scissor test bit and scissor box. */
5426	glPushAttrib(GL_SCISSOR_BIT);
5427	glEnable(GL_SCISSOR_TEST);
5428	for (unsigned i=0; i < cRects; i++)
5429	{
5430	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));
5431	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5432	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5433	glClear(mask);
5434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5435	}
5436	/* Restore the old scissor test bit and box */
5437	glPopAttrib();
5438	}
5439	else
5440	{
5441	glClear(mask);
5442	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5443	}
5444
5445	/* Restore depth write state. */
5446	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5447	&& fDepthWriteEnabled == GL_FALSE)
5448	glDepthMask(GL_FALSE);
5449
5450	return VINF_SUCCESS;
5451	}
5452
5453	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5454	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5455	{
5456	normalized = GL_FALSE;
5457	switch (identity.type)
5458	{
5459	case SVGA3D_DECLTYPE_FLOAT1:
5460	size = 1;
5461	type = GL_FLOAT;
5462	break;
5463	case SVGA3D_DECLTYPE_FLOAT2:
5464	size = 2;
5465	type = GL_FLOAT;
5466	break;
5467	case SVGA3D_DECLTYPE_FLOAT3:
5468	size = 3;
5469	type = GL_FLOAT;
5470	break;
5471	case SVGA3D_DECLTYPE_FLOAT4:
5472	size = 4;
5473	type = GL_FLOAT;
5474	break;
5475
5476	case SVGA3D_DECLTYPE_D3DCOLOR:
5477	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5478	type = GL_UNSIGNED_BYTE;
5479	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5480	break;
5481
5482	case SVGA3D_DECLTYPE_UBYTE4N:
5483	normalized = GL_TRUE;
5484	RT_FALL_THRU();
5485	case SVGA3D_DECLTYPE_UBYTE4:
5486	size = 4;
5487	type = GL_UNSIGNED_BYTE;
5488	break;
5489
5490	case SVGA3D_DECLTYPE_SHORT2N:
5491	normalized = GL_TRUE;
5492	RT_FALL_THRU();
5493	case SVGA3D_DECLTYPE_SHORT2:
5494	size = 2;
5495	type = GL_SHORT;
5496	break;
5497
5498	case SVGA3D_DECLTYPE_SHORT4N:
5499	normalized = GL_TRUE;
5500	RT_FALL_THRU();
5501	case SVGA3D_DECLTYPE_SHORT4:
5502	size = 4;
5503	type = GL_SHORT;
5504	break;
5505
5506	case SVGA3D_DECLTYPE_USHORT4N:
5507	normalized = GL_TRUE;
5508	size = 4;
5509	type = GL_UNSIGNED_SHORT;
5510	break;
5511
5512	case SVGA3D_DECLTYPE_USHORT2N:
5513	normalized = GL_TRUE;
5514	size = 2;
5515	type = GL_UNSIGNED_SHORT;
5516	break;
5517
5518	case SVGA3D_DECLTYPE_UDEC3:
5519	size = 3;
5520	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5521	break;
5522
5523	case SVGA3D_DECLTYPE_DEC3N:
5524	normalized = true;
5525	size = 3;
5526	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5527	break;
5528
5529	case SVGA3D_DECLTYPE_FLOAT16_2:
5530	size = 2;
5531	type = GL_HALF_FLOAT;
5532	break;
5533	case SVGA3D_DECLTYPE_FLOAT16_4:
5534	size = 4;
5535	type = GL_HALF_FLOAT;
5536	break;
5537	default:
5538	AssertFailedReturn(VERR_INVALID_PARAMETER);
5539	}
5540
5541	//pVertexElement->Method = identity.method;
5542	//pVertexElement->Usage = identity.usage;
5543
5544	return VINF_SUCCESS;
5545	}
5546
5547	/* Convert VMWare primitive type to its OpenGL equivalent. */
5548	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5549	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5550	{
5551	switch (PrimitiveType)
5552	{
5553	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5554	*pMode = GL_TRIANGLES;
5555	pcVertices = cPrimitiveCount 3;
5556	break;
5557	case SVGA3D_PRIMITIVE_POINTLIST:
5558	*pMode = GL_POINTS;
5559	*pcVertices = cPrimitiveCount;
5560	break;
5561	case SVGA3D_PRIMITIVE_LINELIST:
5562	*pMode = GL_LINES;
5563	pcVertices = cPrimitiveCount 2;
5564	break;
5565	case SVGA3D_PRIMITIVE_LINESTRIP:
5566	*pMode = GL_LINE_STRIP;
5567	*pcVertices = cPrimitiveCount + 1;
5568	break;
5569	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5570	*pMode = GL_TRIANGLE_STRIP;
5571	*pcVertices = cPrimitiveCount + 2;
5572	break;
5573	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5574	*pMode = GL_TRIANGLE_FAN;
5575	*pcVertices = cPrimitiveCount + 2;
5576	break;
5577	default:
5578	return VERR_INVALID_PARAMETER;
5579	}
5580	return VINF_SUCCESS;
5581	}
5582
5583	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5584	{
5585	int rc;
5586
5587	/* Reset the view matrix (also takes the world matrix into account). */
5588	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5589	{
5590	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5591	}
5592	else
5593	{
5594	float matrix[16];
5595
5596	/* identity matrix if no matrix set. */
5597	memset(matrix, 0, sizeof(matrix));
5598	matrix[0] = 1.0;
5599	matrix[5] = 1.0;
5600	matrix[10] = 1.0;
5601	matrix[15] = 1.0;
5602	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5603	}
5604
5605	/* Reset the projection matrix. */
5606	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5607	{
5608	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5609	}
5610	else
5611	{
5612	float matrix[16];
5613
5614	/* identity matrix if no matrix set. */
5615	memset(matrix, 0, sizeof(matrix));
5616	matrix[0] = 1.0;
5617	matrix[5] = 1.0;
5618	matrix[10] = 1.0;
5619	matrix[15] = 1.0;
5620	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5621	}
5622	AssertRC(rc);
5623	return rc;
5624	}
5625
5626	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5627	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5628	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5629	{
5630	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5631	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5632	PVMSVGA3DSURFACE pVertexSurface;
5633
5634	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5635	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5636
5637	pVertexSurface = pState->papSurfaces[sidVertex];
5638	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5639
5640	/* Create and/or bind the vertex buffer. */
5641	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5642	{
5643	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5644	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5645	pContext = &pState->SharedCtx;
5646	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5647
5648	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5649	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5650
5651	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5652	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5653
5654	Assert(pVertexSurface->fDirty);
5655	/** @todo rethink usage dynamic/static */
5656	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5657	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5658
5659	pVertexSurface->pMipmapLevels[0].fDirty = false;
5660	pVertexSurface->fDirty = false;
5661
5662	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5663
5664	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5666
5667	pContext = pSavedCtx;
5668	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5669	}
5670
5671	Assert(pVertexSurface->fDirty == false);
5672	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5673	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5674
5675	/* Setup the vertex declarations. */
5676	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5677	{
5678	GLint size;
5679	GLenum type;
5680	GLboolean normalized;
5681	GLuint index = iVertexDeclBase + iVertex;
5682
5683	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));
5684
5685	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5686	AssertRCReturn(rc, rc);
5687
5688	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5689	{
5690	/* Use numbered vertex arrays when shaders are active. */
5691	pState->ext.glEnableVertexAttribArray(index);
5692	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5693	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5694	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5696
5697	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5698	pState->ext.glVertexAttribDivisor(index, divisor);
5699	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5700
5701	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5702	}
5703	else
5704	{
5705	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5706	switch (pVertexDecl[iVertex].identity.usage)
5707	{
5708	case SVGA3D_DECLUSAGE_POSITIONT:
5709	case SVGA3D_DECLUSAGE_POSITION:
5710	{
5711	glEnableClientState(GL_VERTEX_ARRAY);
5712	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5713	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5714	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5715	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5716	break;
5717	}
5718	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5719	AssertFailed();
5720	break;
5721	case SVGA3D_DECLUSAGE_BLENDINDICES:
5722	AssertFailed();
5723	break;
5724	case SVGA3D_DECLUSAGE_NORMAL:
5725	glEnableClientState(GL_NORMAL_ARRAY);
5726	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5727	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5728	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5729	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5730	break;
5731	case SVGA3D_DECLUSAGE_PSIZE:
5732	AssertFailed();
5733	break;
5734	case SVGA3D_DECLUSAGE_TEXCOORD:
5735	/* Specify the affected texture unit. */
5736	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5737	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5738	#else
5739	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5740	#endif
5741	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5742	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5743	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5744	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5745	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5746	break;
5747	case SVGA3D_DECLUSAGE_TANGENT:
5748	AssertFailed();
5749	break;
5750	case SVGA3D_DECLUSAGE_BINORMAL:
5751	AssertFailed();
5752	break;
5753	case SVGA3D_DECLUSAGE_TESSFACTOR:
5754	AssertFailed();
5755	break;
5756	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5757	glEnableClientState(GL_COLOR_ARRAY);
5758	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5759	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5760	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5761	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5762	break;
5763	case SVGA3D_DECLUSAGE_FOG:
5764	glEnableClientState(GL_FOG_COORD_ARRAY);
5765	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5766	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5767	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5768	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5769	break;
5770	case SVGA3D_DECLUSAGE_DEPTH:
5771	AssertFailed();
5772	break;
5773	case SVGA3D_DECLUSAGE_SAMPLE:
5774	AssertFailed();
5775	break;
5776	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5777	}
5778	}
5779
5780	#ifdef LOG_ENABLED
5781	if (pVertexDecl[iVertex].array.stride == 0)
5782	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5783	#endif
5784	}
5785
5786	return VINF_SUCCESS;
5787	}
5788
5789	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5790	{
5791	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5792
5793	/* Clean up the vertex declarations. */
5794	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5795	{
5796	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
5797	{
5798	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
5799	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
5800	vmsvga3dResetTransformMatrices(pThis, pContext);
5801	}
5802
5803	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5804	{
5805	/* Use numbered vertex arrays when shaders are active. */
5806	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5807	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5808	}
5809	else
5810	{
5811	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5812	switch (pVertexDecl[iVertex].identity.usage)
5813	{
5814	case SVGA3D_DECLUSAGE_POSITION:
5815	case SVGA3D_DECLUSAGE_POSITIONT:
5816	glDisableClientState(GL_VERTEX_ARRAY);
5817	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5818	break;
5819	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5820	break;
5821	case SVGA3D_DECLUSAGE_BLENDINDICES:
5822	break;
5823	case SVGA3D_DECLUSAGE_NORMAL:
5824	glDisableClientState(GL_NORMAL_ARRAY);
5825	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5826	break;
5827	case SVGA3D_DECLUSAGE_PSIZE:
5828	break;
5829	case SVGA3D_DECLUSAGE_TEXCOORD:
5830	/* Specify the affected texture unit. */
5831	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5832	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5833	#else
5834	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5835	#endif
5836	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5837	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5838	break;
5839	case SVGA3D_DECLUSAGE_TANGENT:
5840	break;
5841	case SVGA3D_DECLUSAGE_BINORMAL:
5842	break;
5843	case SVGA3D_DECLUSAGE_TESSFACTOR:
5844	break;
5845	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
5846	glDisableClientState(GL_COLOR_ARRAY);
5847	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5848	break;
5849	case SVGA3D_DECLUSAGE_FOG:
5850	glDisableClientState(GL_FOG_COORD_ARRAY);
5851	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5852	break;
5853	case SVGA3D_DECLUSAGE_DEPTH:
5854	break;
5855	case SVGA3D_DECLUSAGE_SAMPLE:
5856	break;
5857	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5858	}
5859	}
5860	}
5861	/* Unbind the vertex buffer after usage. */
5862	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
5863	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5864	return VINF_SUCCESS;
5865	}
5866
5867	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
5868	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
5869	SVGA3dVertexDivisor *pVertexDivisor)
5870	{
5871	RT_NOREF(pVertexDivisor);
5872	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5873	AssertReturn(pState, VERR_INTERNAL_ERROR);
5874	PVMSVGA3DCONTEXT pContext;
5875	int rc = VERR_NOT_IMPLEMENTED;
5876	uint32_t iCurrentVertex;
5877
5878	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
5879
5880	/* Caller already check these, but it cannot hurt to check again... */
5881	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
5882	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
5883	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
5884
5885	if (!cVertexDivisor)
5886	pVertexDivisor = NULL; /* Be sure. */
5887
5888	if ( cid >= pState->cContexts
5889	\|\| pState->papContexts[cid]->id != cid)
5890	{
5891	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
5892	return VERR_INVALID_PARAMETER;
5893	}
5894	pContext = pState->papContexts[cid];
5895	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5896
5897	/* Check for pretransformed vertex declarations. */
5898	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5899	{
5900	switch (pVertexDecl[iVertex].identity.usage)
5901	{
5902	case SVGA3D_DECLUSAGE_POSITIONT:
5903	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
5904	RT_FALL_THRU();
5905	case SVGA3D_DECLUSAGE_POSITION:
5906	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
5907	pContext->state.RectViewPort.h,
5908	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
5909	break;
5910	default: /* Shut up MSC. */ break;
5911	}
5912	}
5913
5914	/* Try to figure out if instancing is used.
5915	* Support simple instancing case with one set of indexed data and one set per-instance data.
5916	*/
5917	uint32_t cInstances = 0;
5918	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
5919	{
5920	if (pVertexDivisor[iVertexDivisor].s.indexedData)
5921	{
5922	if (cInstances == 0)
5923	cInstances = pVertexDivisor[iVertexDivisor].s.count;
5924	else
5925	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
5926	}
5927	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
5928	{
5929	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
5930	}
5931	}
5932
5933	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
5934	if (pContext->pShaderContext)
5935	{
5936	uint32_t rtHeight = 0;
5937
5938	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
5939	{
5940	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
5941	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
5942	}
5943
5944	ShaderUpdateState(pContext->pShaderContext, rtHeight);
5945	}
5946
5947	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
5948	iCurrentVertex = 0;
5949	while (iCurrentVertex < numVertexDecls)
5950	{
5951	uint32_t sidVertex = SVGA_ID_INVALID;
5952	uint32_t iVertex;
5953
5954	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
5955	{
5956	if ( sidVertex != SVGA_ID_INVALID
5957	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
5958	)
5959	break;
5960	sidVertex = pVertexDecl[iVertex].array.surfaceId;
5961	}
5962
5963	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
5964	&pVertexDecl[iCurrentVertex], pVertexDivisor);
5965	AssertRCReturn(rc, rc);
5966
5967	iCurrentVertex = iVertex;
5968	}
5969
5970	/* Now draw the primitives. */
5971	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
5972	{
5973	GLenum modeDraw;
5974	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
5975	PVMSVGA3DSURFACE pIndexSurface = NULL;
5976	unsigned cVertices;
5977
5978	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
5979	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
5980	if (RT_FAILURE(rc))
5981	{
5982	AssertRC(rc);
5983	goto internal_error;
5984	}
5985
5986	if (sidIndex != SVGA3D_INVALID_ID)
5987	{
5988	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
5989
5990	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
5991	\|\| sidIndex >= pState->cSurfaces
5992	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
5993	{
5994	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
5995	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
5996	rc = VERR_INVALID_PARAMETER;
5997	goto internal_error;
5998	}
5999	pIndexSurface = pState->papSurfaces[sidIndex];
6000	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6001
6002	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6003	{
6004	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6005	pContext = &pState->SharedCtx;
6006	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6007
6008	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6009	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6010
6011	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6012	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6013
6014	Assert(pIndexSurface->fDirty);
6015
6016	/** @todo rethink usage dynamic/static */
6017	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6018	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6019
6020	pIndexSurface->pMipmapLevels[0].fDirty = false;
6021	pIndexSurface->fDirty = false;
6022
6023	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6024
6025	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6026	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6027
6028	pContext = pState->papContexts[cid];
6029	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6030	}
6031	Assert(pIndexSurface->fDirty == false);
6032
6033	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6034	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6035	}
6036
6037	if (!pIndexSurface)
6038	{
6039	/* Render without an index buffer */
6040	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6041	if (cInstances == 0)
6042	{
6043	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6044	}
6045	else
6046	{
6047	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6048	}
6049	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6050	}
6051	else
6052	{
6053	GLenum indexType;
6054
6055	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6056	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6057
6058	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6059	{
6060	indexType = GL_UNSIGNED_BYTE;
6061	}
6062	else
6063	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6064	{
6065	indexType = GL_UNSIGNED_SHORT;
6066	}
6067	else
6068	{
6069	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6070	indexType = GL_UNSIGNED_INT;
6071	}
6072
6073	Log(("DrawIndexedPrimitive %x cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pVertexDecl[0].rangeHint.first, pVertexDecl[0].rangeHint.last, pRange[iPrimitive].indexArray.offset, pRange[iPrimitive].primitiveCount, pRange[iPrimitive].indexWidth, pRange[iPrimitive].indexBias));
6074	if (cInstances == 0)
6075	{
6076	/* Render with an index buffer */
6077	if (pRange[iPrimitive].indexBias == 0)
6078	glDrawElements(modeDraw,
6079	cVertices,
6080	indexType,
6081	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6082	else
6083	pState->ext.glDrawElementsBaseVertex(modeDraw,
6084	cVertices,
6085	indexType,
6086	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6087	pRange[iPrimitive].indexBias); /* basevertex */
6088	}
6089	else
6090	{
6091	/* Render with an index buffer */
6092	if (pRange[iPrimitive].indexBias == 0)
6093	pState->ext.glDrawElementsInstanced(modeDraw,
6094	cVertices,
6095	indexType,
6096	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6097	cInstances);
6098	else
6099	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6100	cVertices,
6101	indexType,
6102	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6103	cInstances,
6104	pRange[iPrimitive].indexBias); /* basevertex */
6105	}
6106	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6107
6108	/* Unbind the index buffer after usage. */
6109	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6111	}
6112	}
6113
6114	internal_error:
6115
6116	/* Deactivate the vertex declarations. */
6117	iCurrentVertex = 0;
6118	while (iCurrentVertex < numVertexDecls)
6119	{
6120	uint32_t sidVertex = SVGA_ID_INVALID;
6121	uint32_t iVertex;
6122
6123	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6124	{
6125	if ( sidVertex != SVGA_ID_INVALID
6126	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6127	)
6128	break;
6129	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6130	}
6131
6132	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6133	AssertRCReturn(rc, rc);
6134
6135	iCurrentVertex = iVertex;
6136	}
6137	#ifdef DEBUG
6138	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6139	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6140	{
6141	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6142	{
6143	PVMSVGA3DSURFACE pTexture;
6144	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6145	AssertContinue(RT_SUCCESS(rc2));
6146
6147	GLint activeTextureUnit = 0;
6148	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6149	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6150
6151	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6152	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6153
6154	GLint activeTexture = 0;
6155	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6156	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6157
6158	pState->ext.glActiveTexture(activeTextureUnit);
6159	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6160
6161	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6162	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6163	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6164	}
6165	}
6166	#endif
6167
6168	#if 0
6169	/* Dump render target to a bitmap. */
6170	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6171	{
6172	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6173	PVMSVGA3DSURFACE pSurface;
6174	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6175	if (RT_SUCCESS(rc2))
6176	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6177	}
6178	#endif
6179
6180	return rc;
6181	}
6182
6183
6184	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6185	{
6186	PVMSVGA3DCONTEXT pContext;
6187	PVMSVGA3DSHADER pShader;
6188	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6189	AssertReturn(pState, VERR_NO_MEMORY);
6190	int rc;
6191
6192	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6193	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6194
6195	if ( cid >= pState->cContexts
6196	\|\| pState->papContexts[cid]->id != cid)
6197	{
6198	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6199	return VERR_INVALID_PARAMETER;
6200	}
6201	pContext = pState->papContexts[cid];
6202	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6203
6204	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6205	if (type == SVGA3D_SHADERTYPE_VS)
6206	{
6207	if (shid >= pContext->cVertexShaders)
6208	{
6209	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6210	AssertReturn(pvNew, VERR_NO_MEMORY);
6211	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6212	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6213	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6214	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6215	pContext->cVertexShaders = shid + 1;
6216	}
6217	/* If one already exists with this id, then destroy it now. */
6218	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6219	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6220
6221	pShader = &pContext->paVertexShader[shid];
6222	}
6223	else
6224	{
6225	Assert(type == SVGA3D_SHADERTYPE_PS);
6226	if (shid >= pContext->cPixelShaders)
6227	{
6228	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6229	AssertReturn(pvNew, VERR_NO_MEMORY);
6230	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6231	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6232	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6233	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6234	pContext->cPixelShaders = shid + 1;
6235	}
6236	/* If one already exists with this id, then destroy it now. */
6237	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6238	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6239
6240	pShader = &pContext->paPixelShader[shid];
6241	}
6242
6243	memset(pShader, 0, sizeof(*pShader));
6244	pShader->id = shid;
6245	pShader->cid = cid;
6246	pShader->type = type;
6247	pShader->cbData = cbData;
6248	pShader->pShaderProgram = RTMemAllocZ(cbData);
6249	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6250	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6251
6252	#ifdef DUMP_SHADER_DISASSEMBLY
6253	LPD3DXBUFFER pDisassembly;
6254	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6255	if (hr == D3D_OK)
6256	{
6257	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6258	pDisassembly->Release();
6259	}
6260	#endif
6261
6262	switch (type)
6263	{
6264	case SVGA3D_SHADERTYPE_VS:
6265	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6266	break;
6267
6268	case SVGA3D_SHADERTYPE_PS:
6269	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6270	break;
6271
6272	default:
6273	AssertFailedReturn(VERR_INVALID_PARAMETER);
6274	}
6275	if (rc != VINF_SUCCESS)
6276	{
6277	RTMemFree(pShader->pShaderProgram);
6278	memset(pShader, 0, sizeof(*pShader));
6279	pShader->id = SVGA3D_INVALID_ID;
6280	}
6281
6282	return rc;
6283	}
6284
6285	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6286	{
6287	PVMSVGA3DCONTEXT pContext;
6288	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6289	AssertReturn(pState, VERR_NO_MEMORY);
6290	PVMSVGA3DSHADER pShader = NULL;
6291	int rc;
6292
6293	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6294
6295	if ( cid >= pState->cContexts
6296	\|\| pState->papContexts[cid]->id != cid)
6297	{
6298	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6299	return VERR_INVALID_PARAMETER;
6300	}
6301	pContext = pState->papContexts[cid];
6302	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6303
6304	if (type == SVGA3D_SHADERTYPE_VS)
6305	{
6306	if ( shid < pContext->cVertexShaders
6307	&& pContext->paVertexShader[shid].id == shid)
6308	{
6309	pShader = &pContext->paVertexShader[shid];
6310	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6311	AssertRC(rc);
6312	}
6313	}
6314	else
6315	{
6316	Assert(type == SVGA3D_SHADERTYPE_PS);
6317	if ( shid < pContext->cPixelShaders
6318	&& pContext->paPixelShader[shid].id == shid)
6319	{
6320	pShader = &pContext->paPixelShader[shid];
6321	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6322	AssertRC(rc);
6323	}
6324	}
6325
6326	if (pShader)
6327	{
6328	if (pShader->pShaderProgram)
6329	RTMemFree(pShader->pShaderProgram);
6330	memset(pShader, 0, sizeof(*pShader));
6331	pShader->id = SVGA3D_INVALID_ID;
6332	}
6333	else
6334	AssertFailedReturn(VERR_INVALID_PARAMETER);
6335
6336	return VINF_SUCCESS;
6337	}
6338
6339	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6340	{
6341	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6342	AssertReturn(pState, VERR_NO_MEMORY);
6343	int rc;
6344
6345	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6346
6347	if ( !pContext
6348	&& cid < pState->cContexts
6349	&& pState->papContexts[cid]->id == cid)
6350	pContext = pState->papContexts[cid];
6351	else if (!pContext)
6352	{
6353	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6354	Log(("vmsvga3dShaderSet invalid context id!\n"));
6355	return VERR_INVALID_PARAMETER;
6356	}
6357	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6358
6359	if (type == SVGA3D_SHADERTYPE_VS)
6360	{
6361	/* Save for vm state save/restore. */
6362	pContext->state.shidVertex = shid;
6363	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6364
6365	if ( shid < pContext->cVertexShaders
6366	&& pContext->paVertexShader[shid].id == shid)
6367	{
6368	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6369	Assert(type == pShader->type);
6370
6371	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6372	AssertRCReturn(rc, rc);
6373	}
6374	else
6375	if (shid == SVGA_ID_INVALID)
6376	{
6377	/* Unselect shader. */
6378	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6379	AssertRCReturn(rc, rc);
6380	}
6381	else
6382	AssertFailedReturn(VERR_INVALID_PARAMETER);
6383	}
6384	else
6385	{
6386	/* Save for vm state save/restore. */
6387	pContext->state.shidPixel = shid;
6388	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6389
6390	Assert(type == SVGA3D_SHADERTYPE_PS);
6391	if ( shid < pContext->cPixelShaders
6392	&& pContext->paPixelShader[shid].id == shid)
6393	{
6394	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6395	Assert(type == pShader->type);
6396
6397	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6398	AssertRCReturn(rc, rc);
6399	}
6400	else
6401	if (shid == SVGA_ID_INVALID)
6402	{
6403	/* Unselect shader. */
6404	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6405	AssertRCReturn(rc, rc);
6406	}
6407	else
6408	AssertFailedReturn(VERR_INVALID_PARAMETER);
6409	}
6410
6411	return VINF_SUCCESS;
6412	}
6413
6414	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6415	{
6416	PVMSVGA3DCONTEXT pContext;
6417	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6418	AssertReturn(pState, VERR_NO_MEMORY);
6419	int rc;
6420
6421	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6422
6423	if ( cid >= pState->cContexts
6424	\|\| pState->papContexts[cid]->id != cid)
6425	{
6426	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6427	return VERR_INVALID_PARAMETER;
6428	}
6429	pContext = pState->papContexts[cid];
6430	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6431
6432	for (uint32_t i = 0; i < cRegisters; i++)
6433	{
6434	#ifdef LOG_ENABLED
6435	switch (ctype)
6436	{
6437	case SVGA3D_CONST_TYPE_FLOAT:
6438	{
6439	float pValuesF = (float )pValues;
6440	Log(("Constant %d: value=%d-%d-%d-%d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0), (int)(pValuesF[i4 + 1] 100.0), (int)(pValuesF[i4 + 2] 100.0), (int)(pValuesF[i4 + 3] 100.0)));
6441	break;
6442	}
6443
6444	case SVGA3D_CONST_TYPE_INT:
6445	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6446	break;
6447
6448	case SVGA3D_CONST_TYPE_BOOL:
6449	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6450	break;
6451	}
6452	#endif
6453	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6454	}
6455
6456	switch (type)
6457	{
6458	case SVGA3D_SHADERTYPE_VS:
6459	switch (ctype)
6460	{
6461	case SVGA3D_CONST_TYPE_FLOAT:
6462	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6463	break;
6464
6465	case SVGA3D_CONST_TYPE_INT:
6466	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6467	break;
6468
6469	case SVGA3D_CONST_TYPE_BOOL:
6470	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6471	break;
6472
6473	default:
6474	AssertFailedReturn(VERR_INVALID_PARAMETER);
6475	}
6476	AssertRCReturn(rc, rc);
6477	break;
6478
6479	case SVGA3D_SHADERTYPE_PS:
6480	switch (ctype)
6481	{
6482	case SVGA3D_CONST_TYPE_FLOAT:
6483	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6484	break;
6485
6486	case SVGA3D_CONST_TYPE_INT:
6487	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6488	break;
6489
6490	case SVGA3D_CONST_TYPE_BOOL:
6491	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6492	break;
6493
6494	default:
6495	AssertFailedReturn(VERR_INVALID_PARAMETER);
6496	}
6497	AssertRCReturn(rc, rc);
6498	break;
6499
6500	default:
6501	AssertFailedReturn(VERR_INVALID_PARAMETER);
6502	}
6503
6504	return VINF_SUCCESS;
6505	}
6506
6507	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6508	{
6509	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6510	GLuint idQuery = 0;
6511	pState->ext.glGenQueries(1, &idQuery);
6512	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6513	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6514	pContext->occlusion.idQuery = idQuery;
6515	return VINF_SUCCESS;
6516	}
6517
6518	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6519	{
6520	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6521	if (pContext->occlusion.idQuery)
6522	{
6523	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6524	}
6525	return VINF_SUCCESS;
6526	}
6527
6528	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6529	{
6530	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6531	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6532	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6533	return VINF_SUCCESS;
6534	}
6535
6536	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6537	{
6538	RT_NOREF(pContext);
6539	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6540	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6541	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6542	return VINF_SUCCESS;
6543	}
6544
6545	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6546	{
6547	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6548	GLuint pixels = 0;
6549	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6550	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6551
6552	*pu32Pixels = (uint32_t)pixels;
6553	return VINF_SUCCESS;
6554	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 74549

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