DevVGA-SVGA3d-ogl.cpp@ 76196

Last change on this file since 76196 was 75811, checked in by vboxsync, 6 years ago
DevVGA-SVGA3d-ogl.cpp: get rid of the overlay window on X11 host.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 252.0 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 75811 2018-11-29 12:07:41Z 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_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
670	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
671	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
672	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
673	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
674	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
675	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
676	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
677	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
678	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
679	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
680	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
681	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
682	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
683	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
684	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
685	/* glGetProgramivARB determines implementation limits for the program
686	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
687	* It differs from glGetProgramiv, which returns a parameter from a program object.
688	*/
689	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
690	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
691	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
692	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
693	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
694	#endif
695	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
696	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
697	#endif
698
699	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
700	if ( pState->rsGLVersion >= 3.0f
701	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
702	{
703	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
704	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
705	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
706	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
707	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
708	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
709	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
710	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
711	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
712	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
713	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
714	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
715	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
716	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
717	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
718	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
719	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
720	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
721	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
722	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
723	}
724
725	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
726	if (pState->rsGLVersion >= 3.1f)
727	{
728	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
729	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
730	}
731	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
732	{
733	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
734	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
735	}
736	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
737	{
738	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
739	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
740	}
741
742	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
743	if ( pState->rsGLVersion >= 3.2f
744	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
745	{
746	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
747	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
748	}
749
750	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
751	if ( pState->rsGLVersion >= 3.2f
752	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
753	{
754	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
755	}
756
757	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
758	if (pState->rsGLVersion >= 3.3f)
759	{
760	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
761	}
762	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
763	{
764	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
765	}
766
767	#undef GLGETPROCOPT_
768	#undef GLGETPROC_
769
770	return VINF_SUCCESS;
771	}
772
773
774	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
775	int vmsvga3dPowerOn(PVGASTATE pThis)
776	{
777	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
778	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
779	PVMSVGA3DCONTEXT pContext;
780	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
781	PVMSVGA3DCONTEXT pOtherCtx;
782	#endif
783	int rc;
784
785	if (pState->rsGLVersion != 0.0)
786	return VINF_SUCCESS; /* already initialized (load state) */
787
788	/*
789	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
790	*/
791	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
792	AssertRCReturn(rc, rc);
793
794	pContext = pState->papContexts[1];
795	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
796
797	LogRel(("VMSVGA3d: OpenGL version: %s\n"
798	"VMSVGA3d: OpenGL Vendor: %s\n"
799	"VMSVGA3d: OpenGL Renderer: %s\n"
800	"VMSVGA3d: OpenGL shader language version: %s\n",
801	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
802	glGetString(GL_SHADING_LANGUAGE_VERSION)));
803
804	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
805	AssertRCReturn(rc, rc);
806	vmsvga3dLogRelExtensions("", pState->pszExtensions);
807
808	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
809
810
811	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
812	/*
813	* Get the extension list for the alternative profile so we can better
814	* figure out the shader model and stuff.
815	*/
816	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
817	AssertLogRelRCReturn(rc, rc);
818	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
819
820	pOtherCtx = pState->papContexts[2];
821	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
822
823	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
824	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
825	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
826	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
827	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
828	glGetString(GL_SHADING_LANGUAGE_VERSION)));
829
830	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
831	AssertRCReturn(rc, rc);
832	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
833
834	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
835
836	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
837	#else
838	pState->pszOtherExtensions = (char *)"";
839	pState->rsOtherGLVersion = pState->rsGLVersion;
840	#endif
841
842	/*
843	* Resolve GL function pointers and store them in pState->ext.
844	*/
845	rc = vmsvga3dLoadGLFunctions(pState);
846	if (RT_FAILURE(rc))
847	{
848	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
849	return rc;
850	}
851
852	/*
853	* Initialize the capabilities with sensible defaults.
854	*/
855	pState->caps.maxActiveLights = 1;
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_UNITS_ARB, &pState->caps.maxTextures));
873	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
874	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
875	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
876	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
877	#else
878	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
879	#endif
880	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
881	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
882	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
883	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
884
885	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
886	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
887	&pState->caps.maxFragmentShaderTemps));
888	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
889	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
890	&pState->caps.maxFragmentShaderInstructions));
891	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
892	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
893	&pState->caps.maxVertexShaderTemps));
894	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
895	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
896	&pState->caps.maxVertexShaderInstructions));
897
898	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
899
900	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
901	* ARB Assembly Language
902	* These are done through testing the presence of extensions. You should test them in this order:
903	* GL_NV_gpu_program4: SM 4.0 or better.
904	* GL_NV_vertex_program3: SM 3.0 or better.
905	* GL_ARB_fragment_program: SM 2.0 or better.
906	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
907	*
908	*/
909	/** @todo distinguish between vertex and pixel shaders??? */
910	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
911	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
912	if (v >= 3.30f)
913	{
914	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
915	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
916	}
917	else
918	if (v >= 1.20f)
919	{
920	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
921	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
922	}
923	else
924	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
925	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
926	{
927	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
928	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
929	}
930	else
931	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
932	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
933	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
934	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
935	)
936	{
937	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
938	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
939	}
940	else
941	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
942	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
943	{
944	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
945	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
946	}
947	else
948	{
949	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
950	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
951	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
952	}
953
954	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
955	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
956	{
957	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
958	}
959
960	/*
961	* Tweak capabilities.
962	*/
963	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
964	if ( pState->caps.maxVertexShaderTemps < 32
965	&& vmsvga3dIsVendorIntel())
966	pState->caps.maxVertexShaderTemps = 32;
967
968	#if 0
969	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
970	SVGA3D_DEVCAP_QUERY_TYPES = 15,
971	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
972	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
973	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
974	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
975	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
976	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
977	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
978	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
979	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
980	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
981	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
982	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
983	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
984	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
985	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
986	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
987	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
988	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
989	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
990	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
991	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
992	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
993	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
994	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
995	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
996	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
997	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
998	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
999	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1000	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1001	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1002	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1003	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1004	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1005	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1006	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1007	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1008	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1009	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1010	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1011	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1012	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1013	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1014	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1015	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1016	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1017	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1018	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1019	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1020	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1021	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1022	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1023	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1024	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1025	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1026	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1027	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1028	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1029	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1030	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1031	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1032	#endif
1033
1034	LogRel(("VMSVGA3d: Capabilities:\n"));
1035	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1036	pState->caps.maxActiveLights, pState->caps.maxTextures));
1037	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1038	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1039	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1040	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1041	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1042	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1043	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1044	pState->caps.maxFragmentShaderTemps,
1045	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1046	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1047	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1048	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1049
1050
1051	/* Initialize the shader library. */
1052	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1053	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1054	rc = ShaderInitLib(&pState->ShaderIf);
1055	AssertRC(rc);
1056
1057	/* Cleanup */
1058	rc = vmsvga3dContextDestroy(pThis, 1);
1059	AssertRC(rc);
1060	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1061	rc = vmsvga3dContextDestroy(pThis, 2);
1062	AssertRC(rc);
1063	#endif
1064
1065	if ( pState->rsGLVersion < 3.0
1066	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1067	{
1068	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1069	return VERR_NOT_IMPLEMENTED;
1070	}
1071
1072	return VINF_SUCCESS;
1073	}
1074
1075	int vmsvga3dReset(PVGASTATE pThis)
1076	{
1077	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1078	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1079
1080	/* Destroy all leftover surfaces. */
1081	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1082	{
1083	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1084	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1085	}
1086
1087	/* Destroy all leftover contexts. */
1088	for (uint32_t i = 0; i < pState->cContexts; i++)
1089	{
1090	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1091	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1092	}
1093
1094	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1095	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1096
1097	return VINF_SUCCESS;
1098	}
1099
1100	int vmsvga3dTerminate(PVGASTATE pThis)
1101	{
1102	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1103	AssertReturn(pState, VERR_WRONG_ORDER);
1104	int rc;
1105
1106	rc = vmsvga3dReset(pThis);
1107	AssertRCReturn(rc, rc);
1108
1109	/* Terminate the shader library. */
1110	rc = ShaderDestroyLib();
1111	AssertRC(rc);
1112
1113	#ifdef RT_OS_WINDOWS
1114	/* Terminate the window creation thread. */
1115	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1116	AssertRCReturn(rc, rc);
1117
1118	RTSemEventDestroy(pState->WndRequestSem);
1119	#elif defined(RT_OS_DARWIN)
1120
1121	#elif defined(RT_OS_LINUX)
1122	/* signal to the thread that it is supposed to exit */
1123	pState->bTerminate = true;
1124	/* wait for it to terminate */
1125	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1126	AssertRC(rc);
1127	XCloseDisplay(pState->display);
1128	#endif
1129
1130	RTStrFree(pState->pszExtensions);
1131	pState->pszExtensions = NULL;
1132	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1133	RTStrFree(pState->pszOtherExtensions);
1134	#endif
1135	pState->pszOtherExtensions = NULL;
1136
1137	return VINF_SUCCESS;
1138	}
1139
1140
1141	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1142	{
1143	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1144	* redraw it. */
1145
1146	#ifdef RT_OS_DARWIN
1147	RT_NOREF(pOldViewport);
1148	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1149	if ( pState
1150	&& idScreen == 0
1151	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1152	{
1153	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1154	}
1155	#else
1156	RT_NOREF(pThis, idScreen, pOldViewport);
1157	#endif
1158	}
1159
1160
1161	/**
1162	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1163	* given surface format capability.
1164	*
1165	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1166	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1167	*
1168	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1169	* of implicit guest expectations:
1170	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1171	*/
1172	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1173	{
1174	uint32_t result = 0;
1175
1176	/** @todo missing:
1177	*
1178	* SVGA3DFORMAT_OP_PIXELSIZE
1179	*/
1180
1181	switch (idx3dCaps)
1182	{
1183	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1184	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1185	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1186	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1187	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1188	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1189	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1190	break;
1191
1192	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1193	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1194	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1195	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1196	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1197	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1198	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1199	break;
1200	}
1201
1202	/** @todo check hardware caps! */
1203	switch (idx3dCaps)
1204	{
1205	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1206	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1207	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1208	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1209	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1210	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1211	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1212	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1213	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1214	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1215	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1216	result \|= SVGA3DFORMAT_OP_TEXTURE
1217	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1218	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1219	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1220	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1221	\| SVGA3DFORMAT_OP_CUBETEXTURE
1222	\| SVGA3DFORMAT_OP_SRGBREAD
1223	\| SVGA3DFORMAT_OP_SRGBWRITE;
1224	break;
1225
1226	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1227	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1228	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1229	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1230	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1231	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1232	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1233	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1234	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1235	break;
1236
1237	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1238	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1239	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1240	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1241	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1242	result \|= SVGA3DFORMAT_OP_TEXTURE
1243	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1244	\| SVGA3DFORMAT_OP_CUBETEXTURE
1245	\| SVGA3DFORMAT_OP_SRGBREAD;
1246	break;
1247
1248	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1249	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1250	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1251	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1252	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1253	break;
1254
1255	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1256	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1257	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1258	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1259	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1260	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1261	result \|= SVGA3DFORMAT_OP_TEXTURE
1262	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1263	\| SVGA3DFORMAT_OP_CUBETEXTURE
1264	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1265	break;
1266
1267	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1268	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1269	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1270	result \|= SVGA3DFORMAT_OP_TEXTURE
1271	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1272	\| SVGA3DFORMAT_OP_CUBETEXTURE
1273	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1274	break;
1275
1276	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1277	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1278	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1279	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1280	break;
1281	}
1282	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1283
1284	return result;
1285	}
1286
1287	#if 0 /* unused */
1288	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1289	{
1290	RT_NOREF(pState3D, idx3dCaps);
1291
1292	/** @todo test this somehow */
1293	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1294
1295	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1296	return result;
1297	}
1298	#endif
1299
1300
1301	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1302	{
1303	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1304	AssertReturn(pState, VERR_NO_MEMORY);
1305	int rc = VINF_SUCCESS;
1306
1307	*pu32Val = 0;
1308
1309	/*
1310	* The capabilities access by current (2015-03-01) linux sources (gallium,
1311	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1312	* aren't access.
1313	*/
1314
1315	switch (idx3dCaps)
1316	{
1317	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1318	case SVGA3D_DEVCAP_3D:
1319	pu32Val = 1; / boolean? */
1320	break;
1321
1322	case SVGA3D_DEVCAP_MAX_LIGHTS:
1323	*pu32Val = pState->caps.maxActiveLights;
1324	break;
1325
1326	case SVGA3D_DEVCAP_MAX_TEXTURES:
1327	*pu32Val = pState->caps.maxTextures;
1328	break;
1329
1330	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1331	*pu32Val = pState->caps.maxClipDistances;
1332	break;
1333
1334	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1335	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1336	*pu32Val = pState->caps.vertexShaderVersion;
1337	break;
1338
1339	case SVGA3D_DEVCAP_VERTEX_SHADER:
1340	/* boolean? */
1341	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1342	break;
1343
1344	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1345	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1346	*pu32Val = pState->caps.fragmentShaderVersion;
1347	break;
1348
1349	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1350	/* boolean? */
1351	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1352	break;
1353
1354	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1355	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1356	/* Must be obsolete by now; surface format caps specify the same thing. */
1357	rc = VERR_INVALID_PARAMETER;
1358	break;
1359
1360	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1361	break;
1362
1363	/*
1364	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1365	* return TRUE. Even on physical hardware that does not support
1366	* these formats natively, the SVGA3D device will provide an emulation
1367	* which should be invisible to the guest OS.
1368	*/
1369	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1370	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1371	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1372	*pu32Val = 1;
1373	break;
1374
1375	case SVGA3D_DEVCAP_QUERY_TYPES:
1376	break;
1377
1378	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1379	break;
1380
1381	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1382	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1383	AssertCompile(sizeof(uint32_t) == sizeof(float));
1384	(float )pu32Val = pState->caps.flPointSize[1];
1385	break;
1386
1387	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1388	/** @todo ?? */
1389	rc = VERR_INVALID_PARAMETER;
1390	break;
1391
1392	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1393	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1394	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1395	*pu32Val = pState->caps.maxRectangleTextureSize;
1396	break;
1397
1398	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1399	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1400	//*pu32Val = pCaps->MaxVolumeExtent;
1401	*pu32Val = 256;
1402	break;
1403
1404	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1405	pu32Val = 32768; / hardcoded in Wine */
1406	break;
1407
1408	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1409	//*pu32Val = pCaps->MaxTextureAspectRatio;
1410	break;
1411
1412	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1413	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1414	*pu32Val = pState->caps.maxTextureAnisotropy;
1415	break;
1416
1417	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1418	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1419	pu32Val = 0xFFFFF; / hardcoded in Wine */
1420	break;
1421
1422	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1423	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1424	*pu32Val = pState->caps.maxVertexShaderInstructions;
1425	break;
1426
1427	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1428	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1429	break;
1430
1431	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1432	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1433	*pu32Val = pState->caps.maxVertexShaderTemps;
1434	break;
1435
1436	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1437	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1438	*pu32Val = pState->caps.maxFragmentShaderTemps;
1439	break;
1440
1441	case SVGA3D_DEVCAP_TEXTURE_OPS:
1442	break;
1443
1444	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1445	break;
1446
1447	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1448	break;
1449
1450	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1451	break;
1452
1453	case SVGA3D_DEVCAP_SUPERSAMPLE:
1454	break;
1455
1456	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1457	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1458	break;
1459
1460	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1461	break;
1462
1463	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1464	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1465	*pu32Val = pState->caps.maxColorAttachments;
1466	break;
1467
1468	/*
1469	* This is the maximum number of SVGA context IDs that the guest
1470	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1471	*/
1472	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1473	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1474	break;
1475
1476	/*
1477	* This is the maximum number of SVGA surface IDs that the guest
1478	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1479	*/
1480	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1481	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1482	break;
1483
1484	#if 0 /* Appeared more recently, not yet implemented. */
1485	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1486	case SVGA3D_DEVCAP_LINE_AA:
1487	break;
1488	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1489	case SVGA3D_DEVCAP_LINE_STIPPLE:
1490	break;
1491	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1492	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1493	break;
1494	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1495	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1496	break;
1497	#endif
1498
1499	/*
1500	* Supported surface formats.
1501	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1502	*/
1503	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1504	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1505	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1506	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1507	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1508	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1509	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1510	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1511	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1512	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1513	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1514	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1515	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1516	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1517	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1518	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1519	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1520	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1521	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1522	break;
1523
1524	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1525	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1526	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1527	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1528	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1529	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1530	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1531	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1532	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1533	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1534	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1535	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1536	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1537	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1538	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1539	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1540	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1541	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1542	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1543	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1544	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1545	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1546	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1547	break;
1548
1549	/* Linux: Not referenced in current sources. */
1550	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1551	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1552	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1553	rc = VERR_INVALID_PARAMETER;
1554	*pu32Val = 0;
1555	break;
1556
1557	default:
1558	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1559	rc = VERR_INVALID_PARAMETER;
1560	break;
1561	}
1562
1563	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1564	return rc;
1565	}
1566
1567	/**
1568	* Convert SVGA format value to its OpenGL equivalent
1569	*
1570	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1571	* help from wined3dformat_from_d3dformat().
1572	*/
1573	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1574	{
1575	#if 0
1576	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1577	#else
1578	#define AssertTestFmt(f) do {} while(0)
1579	#endif
1580	switch (format)
1581	{
1582	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1583	pSurface->internalFormatGL = GL_RGB8;
1584	pSurface->formatGL = GL_BGRA;
1585	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1586	break;
1587	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1588	pSurface->internalFormatGL = GL_RGBA8;
1589	pSurface->formatGL = GL_BGRA;
1590	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1591	break;
1592	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1593	pSurface->internalFormatGL = GL_RGB5;
1594	pSurface->formatGL = GL_RGB;
1595	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1596	AssertTestFmt(SVGA3D_R5G6B5);
1597	break;
1598	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1599	pSurface->internalFormatGL = GL_RGB5;
1600	pSurface->formatGL = GL_BGRA;
1601	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1602	AssertTestFmt(SVGA3D_X1R5G5B5);
1603	break;
1604	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1605	pSurface->internalFormatGL = GL_RGB5_A1;
1606	pSurface->formatGL = GL_BGRA;
1607	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1608	AssertTestFmt(SVGA3D_A1R5G5B5);
1609	break;
1610	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1611	pSurface->internalFormatGL = GL_RGBA4;
1612	pSurface->formatGL = GL_BGRA;
1613	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1614	AssertTestFmt(SVGA3D_A4R4G4B4);
1615	break;
1616
1617	case SVGA3D_R8G8B8A8_UNORM:
1618	pSurface->internalFormatGL = GL_RGBA8;
1619	pSurface->formatGL = GL_RGBA;
1620	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1621	break;
1622
1623	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1624	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1625	pSurface->formatGL = GL_DEPTH_COMPONENT;
1626	pSurface->typeGL = GL_UNSIGNED_INT;
1627	break;
1628	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1629	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1630	pSurface->formatGL = GL_DEPTH_COMPONENT;
1631	pSurface->typeGL = GL_UNSIGNED_SHORT;
1632	AssertTestFmt(SVGA3D_Z_D16);
1633	break;
1634	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1635	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1636	pSurface->formatGL = GL_DEPTH_STENCIL;
1637	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1638	break;
1639	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1640	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1641	pSurface->formatGL = GL_DEPTH_STENCIL;
1642	pSurface->typeGL = GL_UNSIGNED_SHORT;
1643	/** @todo Wine sources hints at no hw support for this, so test this one! */
1644	AssertTestFmt(SVGA3D_Z_D15S1);
1645	break;
1646	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1647	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1648	pSurface->formatGL = GL_DEPTH_COMPONENT;
1649	pSurface->typeGL = GL_UNSIGNED_INT;
1650	AssertTestFmt(SVGA3D_Z_D24X8);
1651	break;
1652
1653	/* Advanced D3D9 depth formats. */
1654	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1655	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1656	pSurface->formatGL = GL_DEPTH_COMPONENT;
1657	pSurface->typeGL = GL_HALF_FLOAT;
1658	break;
1659
1660	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1661	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1662	pSurface->formatGL = GL_DEPTH_COMPONENT;
1663	pSurface->typeGL = GL_FLOAT; /* ??? */
1664	break;
1665
1666	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1667	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1668	pSurface->formatGL = GL_DEPTH_STENCIL;
1669	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1670	break;
1671
1672	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1673	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1674	pSurface->formatGL = GL_RGBA; /* not used */
1675	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1676	break;
1677
1678	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1679	/* "DXT2 and DXT3 are the same from an API perspective." */
1680	RT_FALL_THRU();
1681	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1682	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1683	pSurface->formatGL = GL_RGBA; /* not used */
1684	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1685	break;
1686
1687	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1688	/* "DXT4 and DXT5 are the same from an API perspective." */
1689	RT_FALL_THRU();
1690	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1691	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1692	pSurface->formatGL = GL_RGBA; /* not used */
1693	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1694	break;
1695
1696	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1697	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1698	pSurface->formatGL = GL_LUMINANCE;
1699	pSurface->typeGL = GL_UNSIGNED_BYTE;
1700	break;
1701
1702	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1703	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1704	pSurface->formatGL = GL_LUMINANCE;
1705	pSurface->typeGL = GL_UNSIGNED_SHORT;
1706	break;
1707
1708	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1709	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1710	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1711	pSurface->typeGL = GL_UNSIGNED_BYTE;
1712	break;
1713
1714	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1715	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1716	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1717	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1718	break;
1719
1720	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1721	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1722	pSurface->formatGL = GL_ALPHA;
1723	pSurface->typeGL = GL_UNSIGNED_BYTE;
1724	break;
1725
1726	#if 0
1727
1728	/* Bump-map formats */
1729	case SVGA3D_BUMPU8V8:
1730	return D3DFMT_V8U8;
1731	case SVGA3D_BUMPL6V5U5:
1732	return D3DFMT_L6V5U5;
1733	case SVGA3D_BUMPX8L8V8U8:
1734	return D3DFMT_X8L8V8U8;
1735	case SVGA3D_BUMPL8V8U8:
1736	/* No corresponding D3D9 equivalent. */
1737	AssertFailedReturn(D3DFMT_UNKNOWN);
1738	/* signed bump-map formats */
1739	case SVGA3D_V8U8:
1740	return D3DFMT_V8U8;
1741	case SVGA3D_Q8W8V8U8:
1742	return D3DFMT_Q8W8V8U8;
1743	case SVGA3D_CxV8U8:
1744	return D3DFMT_CxV8U8;
1745	/* mixed bump-map formats */
1746	case SVGA3D_X8L8V8U8:
1747	return D3DFMT_X8L8V8U8;
1748	case SVGA3D_A2W10V10U10:
1749	return D3DFMT_A2W10V10U10;
1750	#endif
1751
1752	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1753	pSurface->internalFormatGL = GL_RGBA16F;
1754	pSurface->formatGL = GL_RGBA;
1755	#if 0 /* bird: wine uses half float, sounds correct to me... */
1756	pSurface->typeGL = GL_FLOAT;
1757	#else
1758	pSurface->typeGL = GL_HALF_FLOAT;
1759	AssertTestFmt(SVGA3D_ARGB_S10E5);
1760	#endif
1761	break;
1762
1763	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1764	pSurface->internalFormatGL = GL_RGBA32F;
1765	pSurface->formatGL = GL_RGBA;
1766	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1767	break;
1768
1769	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1770	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1771	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1772	pSurface->formatGL = GL_RGBA;
1773	#else
1774	pSurface->formatGL = GL_BGRA;
1775	#endif
1776	pSurface->typeGL = GL_UNSIGNED_INT;
1777	AssertTestFmt(SVGA3D_A2R10G10B10);
1778	break;
1779
1780
1781	/* Single- and dual-component floating point formats */
1782	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1783	pSurface->internalFormatGL = GL_R16F;
1784	pSurface->formatGL = GL_RED;
1785	#if 0 /* bird: wine uses half float, sounds correct to me... */
1786	pSurface->typeGL = GL_FLOAT;
1787	#else
1788	pSurface->typeGL = GL_HALF_FLOAT;
1789	AssertTestFmt(SVGA3D_R_S10E5);
1790	#endif
1791	break;
1792	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1793	pSurface->internalFormatGL = GL_R32F;
1794	pSurface->formatGL = GL_RED;
1795	pSurface->typeGL = GL_FLOAT;
1796	break;
1797	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1798	pSurface->internalFormatGL = GL_RG16F;
1799	pSurface->formatGL = GL_RG;
1800	#if 0 /* bird: wine uses half float, sounds correct to me... */
1801	pSurface->typeGL = GL_FLOAT;
1802	#else
1803	pSurface->typeGL = GL_HALF_FLOAT;
1804	AssertTestFmt(SVGA3D_RG_S10E5);
1805	#endif
1806	break;
1807	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1808	pSurface->internalFormatGL = GL_RG32F;
1809	pSurface->formatGL = GL_RG;
1810	pSurface->typeGL = GL_FLOAT;
1811	break;
1812
1813	/*
1814	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1815	* the most efficient format to use when creating new surfaces
1816	* expressly for index or vertex data.
1817	*/
1818	case SVGA3D_BUFFER:
1819	pSurface->internalFormatGL = -1;
1820	pSurface->formatGL = -1;
1821	pSurface->typeGL = -1;
1822	break;
1823
1824	#if 0
1825	return D3DFMT_UNKNOWN;
1826
1827	case SVGA3D_V16U16:
1828	return D3DFMT_V16U16;
1829	#endif
1830
1831	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1832	pSurface->internalFormatGL = GL_RG16;
1833	pSurface->formatGL = GL_RG;
1834	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1835	pSurface->typeGL = GL_UNSIGNED_INT;
1836	#else
1837	pSurface->typeGL = GL_UNSIGNED_SHORT;
1838	AssertTestFmt(SVGA3D_G16R16);
1839	#endif
1840	break;
1841
1842	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1843	pSurface->internalFormatGL = GL_RGBA16;
1844	pSurface->formatGL = GL_RGBA;
1845	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1846	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1847	#else
1848	pSurface->typeGL = GL_UNSIGNED_SHORT;
1849	AssertTestFmt(SVGA3D_A16B16G16R16);
1850	#endif
1851	break;
1852
1853	case SVGA3D_R8G8B8A8_SNORM:
1854	pSurface->internalFormatGL = GL_RGB8;
1855	pSurface->formatGL = GL_BGRA;
1856	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1857	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1858	break;
1859	case SVGA3D_R16G16_UNORM:
1860	pSurface->internalFormatGL = GL_RG16;
1861	pSurface->formatGL = GL_RG;
1862	pSurface->typeGL = GL_UNSIGNED_SHORT;
1863	AssertTestFmt(SVGA3D_R16G16_UNORM);
1864	break;
1865
1866	#if 0
1867	/* Packed Video formats */
1868	case SVGA3D_UYVY:
1869	return D3DFMT_UYVY;
1870	case SVGA3D_YUY2:
1871	return D3DFMT_YUY2;
1872
1873	/* Planar video formats */
1874	case SVGA3D_NV12:
1875	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1876
1877	/* Video format with alpha */
1878	case SVGA3D_AYUV:
1879	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1880
1881	case SVGA3D_BC4_UNORM:
1882	case SVGA3D_BC5_UNORM:
1883	/* Unknown; only in DX10 & 11 */
1884	break;
1885	#endif
1886	default:
1887	AssertMsgFailed(("Unsupported format %d\n", format));
1888	break;
1889	}
1890	#undef AssertTestFmt
1891	}
1892
1893
1894	#if 0
1895	/**
1896	* Convert SVGA multi sample count value to its D3D equivalent
1897	*/
1898	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1899	{
1900	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1901	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1902
1903	if (multisampleCount > 16)
1904	return D3DMULTISAMPLE_NONE;
1905
1906	/** @todo exact same mapping as d3d? */
1907	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1908	}
1909	#endif
1910
1911	/**
1912	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1913	*
1914	* @param pState The VMSVGA3d state.
1915	* @param pSurface The surface being destroyed.
1916	*/
1917	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1918	{
1919	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1920	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1921
1922	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1923	{
1924	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1925	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1926	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1927	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1928	{
1929	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1930	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1931	}
1932	break;
1933
1934	case SVGA3D_SURFACE_CUBEMAP:
1935	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
1936	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1937	/* Cubemap is a texture. */
1938	case SVGA3D_SURFACE_HINT_TEXTURE:
1939	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1940	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1941	{
1942	glDeleteTextures(1, &pSurface->oglId.texture);
1943	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1944	}
1945	break;
1946
1947	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1948	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1949	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1950	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1951	{
1952	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1953	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1954	}
1955	break;
1956
1957	default:
1958	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1959	break;
1960	}
1961	}
1962
1963
1964	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1965	{
1966	for (uint32_t i = 0; i < cCopyBoxes; i++)
1967	{
1968	SVGA3dBox destBox, srcBox;
1969
1970	srcBox.x = pBox[i].srcx;
1971	srcBox.y = pBox[i].srcy;
1972	srcBox.z = pBox[i].srcz;
1973	srcBox.w = pBox[i].w;
1974	srcBox.h = pBox[i].h;
1975	srcBox.d = pBox[i].d;
1976
1977	destBox.x = pBox[i].x;
1978	destBox.y = pBox[i].y;
1979	destBox.z = pBox[i].z;
1980	destBox.w = pBox[i].w;
1981	destBox.h = pBox[i].h;
1982	destBox.d = pBox[i].d;
1983
1984	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1985	AssertRCReturn(rc, rc);
1986	}
1987	return VINF_SUCCESS;
1988	}
1989
1990
1991	/**
1992	* Save texture unpacking parameters and loads those appropriate for the given
1993	* surface.
1994	*
1995	* @param pState The VMSVGA3D state structure.
1996	* @param pContext The active context.
1997	* @param pSurface The surface.
1998	* @param pSave Where to save stuff.
1999	*/
2000	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2001	PVMSVGAPACKPARAMS pSave)
2002	{
2003	RT_NOREF(pState);
2004
2005	/*
2006	* Save (ignore errors, setting the defaults we want and avoids restore).
2007	*/
2008	pSave->iAlignment = 1;
2009	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2010	pSave->cxRow = 0;
2011	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2012
2013	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2014	pSave->cyImage = 0;
2015	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2016	Assert(pSave->cyImage == 0);
2017
2018	pSave->fSwapBytes = GL_FALSE;
2019	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2020	Assert(pSave->fSwapBytes == GL_FALSE);
2021
2022	pSave->fLsbFirst = GL_FALSE;
2023	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2024	Assert(pSave->fLsbFirst == GL_FALSE);
2025
2026	pSave->cSkipRows = 0;
2027	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2028	Assert(pSave->cSkipRows == 0);
2029
2030	pSave->cSkipPixels = 0;
2031	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2032	Assert(pSave->cSkipPixels == 0);
2033
2034	pSave->cSkipImages = 0;
2035	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2036	Assert(pSave->cSkipImages == 0);
2037
2038	VMSVGA3D_CLEAR_GL_ERRORS();
2039	#endif
2040
2041	/*
2042	* Setup unpack.
2043	*
2044	* Note! We use 1 as alignment here because we currently don't do any
2045	* aligning of line pitches anywhere.
2046	*/
2047	NOREF(pSurface);
2048	if (pSave->iAlignment != 1)
2049	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2050	if (pSave->cxRow != 0)
2051	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2052	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2053	if (pSave->cyImage != 0)
2054	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2055	if (pSave->fSwapBytes != 0)
2056	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2057	if (pSave->fLsbFirst != 0)
2058	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2059	if (pSave->cSkipRows != 0)
2060	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2061	if (pSave->cSkipPixels != 0)
2062	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2063	if (pSave->cSkipImages != 0)
2064	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2065	#endif
2066	}
2067
2068
2069	/**
2070	* Restores texture unpacking parameters.
2071	*
2072	* @param pState The VMSVGA3D state structure.
2073	* @param pContext The active context.
2074	* @param pSurface The surface.
2075	* @param pSave Where stuff was saved.
2076	*/
2077	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2078	PCVMSVGAPACKPARAMS pSave)
2079	{
2080	RT_NOREF(pState, pSurface);
2081
2082	if (pSave->iAlignment != 1)
2083	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2084	if (pSave->cxRow != 0)
2085	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2086	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2087	if (pSave->cyImage != 0)
2088	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2089	if (pSave->fSwapBytes != 0)
2090	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2091	if (pSave->fLsbFirst != 0)
2092	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2093	if (pSave->cSkipRows != 0)
2094	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2095	if (pSave->cSkipPixels != 0)
2096	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2097	if (pSave->cSkipImages != 0)
2098	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2099	#endif
2100	}
2101
2102	/**
2103	* Create D3D/OpenGL texture object for the specified surface.
2104	*
2105	* Surfaces are created when needed.
2106	*
2107	* @param pState The VMSVGA3d state.
2108	* @param pContext The context.
2109	* @param idAssociatedContext Probably the same as pContext->id.
2110	* @param pSurface The surface to create the texture for.
2111	*/
2112	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2113	PVMSVGA3DSURFACE pSurface)
2114	{
2115	RT_NOREF(idAssociatedContext);
2116
2117	LogFunc(("sid=%x\n", pSurface->id));
2118
2119	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2120
2121	/* Fugure out what kind of texture we are creating. */
2122	GLenum binding;
2123	GLenum target;
2124	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2125	{
2126	Assert(pSurface->cFaces == 6);
2127
2128	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2129	target = GL_TEXTURE_CUBE_MAP;
2130	}
2131	else
2132	{
2133	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2134	{
2135	binding = GL_TEXTURE_BINDING_3D;
2136	target = GL_TEXTURE_3D;
2137	}
2138	else
2139	{
2140	Assert(pSurface->cFaces == 1);
2141
2142	binding = GL_TEXTURE_BINDING_2D;
2143	target = GL_TEXTURE_2D;
2144	}
2145	}
2146
2147	/* All textures are created in the SharedCtx. */
2148	uint32_t idPrevCtx = pState->idActiveContext;
2149	pContext = &pState->SharedCtx;
2150	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2151
2152	glGenTextures(1, &pSurface->oglId.texture);
2153	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2154
2155	GLint activeTexture = 0;
2156	glGetIntegerv(binding, &activeTexture);
2157	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2158
2159	/* Must bind texture to the current context in order to change it. */
2160	glBindTexture(target, pSurface->oglId.texture);
2161	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2162
2163	/* Set the unpacking parameters. */
2164	VMSVGAPACKPARAMS SavedParams;
2165	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2166
2167	/** @todo Set the mip map generation filter settings. */
2168
2169	/* Set the mipmap base and max level parameters. */
2170	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2171	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2172	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2173	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2174
2175	if (pSurface->fDirty)
2176	LogFunc(("sync dirty texture\n"));
2177
2178	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2179	if (target == GL_TEXTURE_3D)
2180	{
2181	for (uint32_t i = 0; i < numMipLevels; ++i)
2182	{
2183	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2184	* exposing random host memory to the guest and helps a with the fedora 21 surface
2185	* corruption issues (launchpad, background, search field, login).
2186	*/
2187	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2188
2189	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2190	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2191
2192	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2193	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2194	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2195	{
2196	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2197	i,
2198	pSurface->internalFormatGL,
2199	pMipLevel->mipmapSize.width,
2200	pMipLevel->mipmapSize.height,
2201	pMipLevel->mipmapSize.depth,
2202	0,
2203	pMipLevel->cbSurface,
2204	pMipLevel->pSurfaceData);
2205	}
2206	else
2207	{
2208	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2209	i,
2210	pSurface->internalFormatGL,
2211	pMipLevel->mipmapSize.width,
2212	pMipLevel->mipmapSize.height,
2213	pMipLevel->mipmapSize.depth,
2214	0, /* border */
2215	pSurface->formatGL,
2216	pSurface->typeGL,
2217	pMipLevel->pSurfaceData);
2218	}
2219	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2220
2221	pMipLevel->fDirty = false;
2222	}
2223	}
2224	else if (target == GL_TEXTURE_CUBE_MAP)
2225	{
2226	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2227	{
2228	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2229
2230	for (uint32_t i = 0; i < numMipLevels; ++i)
2231	{
2232	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2233	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2234	Assert(pMipLevel->mipmapSize.depth == 1);
2235
2236	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2237	iFace, i, pMipLevel->fDirty));
2238
2239	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2240	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2241	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2242	{
2243	pState->ext.glCompressedTexImage2D(Face,
2244	i,
2245	pSurface->internalFormatGL,
2246	pMipLevel->mipmapSize.width,
2247	pMipLevel->mipmapSize.height,
2248	0,
2249	pMipLevel->cbSurface,
2250	pMipLevel->pSurfaceData);
2251	}
2252	else
2253	{
2254	glTexImage2D(Face,
2255	i,
2256	pSurface->internalFormatGL,
2257	pMipLevel->mipmapSize.width,
2258	pMipLevel->mipmapSize.height,
2259	0,
2260	pSurface->formatGL,
2261	pSurface->typeGL,
2262	pMipLevel->pSurfaceData);
2263	}
2264	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2265
2266	pMipLevel->fDirty = false;
2267	}
2268	}
2269	}
2270	else if (target == GL_TEXTURE_2D)
2271	{
2272	for (uint32_t i = 0; i < numMipLevels; ++i)
2273	{
2274	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2275	* exposing random host memory to the guest and helps a with the fedora 21 surface
2276	* corruption issues (launchpad, background, search field, login).
2277	*/
2278	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2279	Assert(pMipLevel->mipmapSize.depth == 1);
2280
2281	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2282	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2283
2284	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2285	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2286	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2287	{
2288	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2289	i,
2290	pSurface->internalFormatGL,
2291	pMipLevel->mipmapSize.width,
2292	pMipLevel->mipmapSize.height,
2293	0,
2294	pMipLevel->cbSurface,
2295	pMipLevel->pSurfaceData);
2296	}
2297	else
2298	{
2299	glTexImage2D(GL_TEXTURE_2D,
2300	i,
2301	pSurface->internalFormatGL,
2302	pMipLevel->mipmapSize.width,
2303	pMipLevel->mipmapSize.height,
2304	0,
2305	pSurface->formatGL,
2306	pSurface->typeGL,
2307	pMipLevel->pSurfaceData);
2308	}
2309	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2310
2311	pMipLevel->fDirty = false;
2312	}
2313	}
2314
2315	pSurface->fDirty = false;
2316
2317	/* Restore unpacking parameters. */
2318	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2319
2320	/* Restore the old active texture. */
2321	glBindTexture(target, activeTexture);
2322	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2323
2324	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2325	pSurface->targetGL = target;
2326	pSurface->bindingGL = binding;
2327
2328	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2329	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2330	return VINF_SUCCESS;
2331	}
2332
2333
2334	/**
2335	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2336	*
2337	* @returns VBox status code.
2338	* @param pThis The VGA device instance.
2339	* @param pState The VMSVGA3d state.
2340	* @param pDstSurface The destination host surface.
2341	* @param uDstFace The destination face (valid).
2342	* @param uDstMipmap The destination mipmap level (valid).
2343	* @param pDstBox The destination box.
2344	* @param pSrcSurface The source host surface.
2345	* @param uSrcFace The destination face (valid).
2346	* @param uSrcMipmap The source mimap level (valid).
2347	* @param pSrcBox The source box.
2348	* @param enmMode The strecht blt mode .
2349	* @param pContext The VMSVGA3d context (already current for OGL).
2350	*/
2351	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2352	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2353	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2354	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2355	{
2356	RT_NOREF(pThis);
2357
2358	/* Activate the read and draw framebuffer objects. */
2359	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2360	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2361	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2362	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2363
2364	/* Bind the source and destination objects to the right place. */
2365	GLenum textarget;
2366	if (pSrcSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2367	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2368	else
2369	textarget = GL_TEXTURE_2D;
2370	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2371	pSrcSurface->oglId.texture, uSrcMipmap);
2372	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2373
2374	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2375	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2376	else
2377	textarget = GL_TEXTURE_2D;
2378	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2379	pDstSurface->oglId.texture, uDstMipmap);
2380	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2381
2382	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2383	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2384	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2385	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2386	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2387
2388	pState->ext.glBlitFramebuffer(pSrcBox->x,
2389	pSrcBox->y,
2390	pSrcBox->x + pSrcBox->w, /* exclusive. */
2391	pSrcBox->y + pSrcBox->h,
2392	pDstBox->x,
2393	pDstBox->y,
2394	pDstBox->x + pDstBox->w, /* exclusive. */
2395	pDstBox->y + pDstBox->h,
2396	GL_COLOR_BUFFER_BIT,
2397	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2398	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2399
2400	/* Reset the frame buffer association */
2401	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2403
2404	return VINF_SUCCESS;
2405	}
2406
2407	/**
2408	* Save texture packing parameters and loads those appropriate for the given
2409	* surface.
2410	*
2411	* @param pState The VMSVGA3D state structure.
2412	* @param pContext The active context.
2413	* @param pSurface The surface.
2414	* @param pSave Where to save stuff.
2415	*/
2416	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2417	PVMSVGAPACKPARAMS pSave)
2418	{
2419	RT_NOREF(pState);
2420	/*
2421	* Save (ignore errors, setting the defaults we want and avoids restore).
2422	*/
2423	pSave->iAlignment = 1;
2424	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2425	pSave->cxRow = 0;
2426	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2427
2428	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2429	pSave->cyImage = 0;
2430	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2431	Assert(pSave->cyImage == 0);
2432
2433	pSave->fSwapBytes = GL_FALSE;
2434	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2435	Assert(pSave->fSwapBytes == GL_FALSE);
2436
2437	pSave->fLsbFirst = GL_FALSE;
2438	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2439	Assert(pSave->fLsbFirst == GL_FALSE);
2440
2441	pSave->cSkipRows = 0;
2442	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2443	Assert(pSave->cSkipRows == 0);
2444
2445	pSave->cSkipPixels = 0;
2446	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2447	Assert(pSave->cSkipPixels == 0);
2448
2449	pSave->cSkipImages = 0;
2450	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2451	Assert(pSave->cSkipImages == 0);
2452
2453	VMSVGA3D_CLEAR_GL_ERRORS();
2454	#endif
2455
2456	/*
2457	* Setup unpack.
2458	*
2459	* Note! We use 1 as alignment here because we currently don't do any
2460	* aligning of line pitches anywhere.
2461	*/
2462	NOREF(pSurface);
2463	if (pSave->iAlignment != 1)
2464	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2465	if (pSave->cxRow != 0)
2466	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2467	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2468	if (pSave->cyImage != 0)
2469	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2470	if (pSave->fSwapBytes != 0)
2471	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2472	if (pSave->fLsbFirst != 0)
2473	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2474	if (pSave->cSkipRows != 0)
2475	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2476	if (pSave->cSkipPixels != 0)
2477	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2478	if (pSave->cSkipImages != 0)
2479	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2480	#endif
2481	}
2482
2483
2484	/**
2485	* Restores texture packing parameters.
2486	*
2487	* @param pState The VMSVGA3D state structure.
2488	* @param pContext The active context.
2489	* @param pSurface The surface.
2490	* @param pSave Where stuff was saved.
2491	*/
2492	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2493	PCVMSVGAPACKPARAMS pSave)
2494	{
2495	RT_NOREF(pState, pSurface);
2496	if (pSave->iAlignment != 1)
2497	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2498	if (pSave->cxRow != 0)
2499	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2500	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2501	if (pSave->cyImage != 0)
2502	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2503	if (pSave->fSwapBytes != 0)
2504	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2505	if (pSave->fLsbFirst != 0)
2506	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2507	if (pSave->cSkipRows != 0)
2508	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2509	if (pSave->cSkipPixels != 0)
2510	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2511	if (pSave->cSkipImages != 0)
2512	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2513	#endif
2514	}
2515
2516
2517	/**
2518	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2519	*
2520	* @returns Failure status code or @a rc.
2521	* @param pThis The VGA device instance data.
2522	* @param pState The VMSVGA3d state.
2523	* @param pSurface The host surface.
2524	* @param pMipLevel Mipmap level. The caller knows it already.
2525	* @param uHostFace The host face (valid).
2526	* @param uHostMipmap The host mipmap level (valid).
2527	* @param GuestPtr The guest pointer.
2528	* @param cbGuestPitch The guest pitch.
2529	* @param transfer The transfer direction.
2530	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2531	* @param pContext The context (for OpenGL).
2532	* @param rc The current rc for all boxes.
2533	* @param iBox The current box number (for Direct 3D).
2534	*/
2535	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2536	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2537	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2538	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2539	{
2540	RT_NOREF(iBox);
2541
2542	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2543	{
2544	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2545	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2546	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2547	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2548	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2549	case SVGA3D_SURFACE_HINT_TEXTURE:
2550	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2551	{
2552	uint32_t cbSurfacePitch;
2553	uint8_t *pDoubleBuffer;
2554	uint32_t offHst;
2555
2556	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2557	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2558	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2559	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2560
2561	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2562	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2563	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2564	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2565
2566	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2567	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2568	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2569
2570	GLenum texImageTarget;
2571	if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2572	{
2573	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2574	}
2575	else
2576	{
2577	Assert(pSurface->targetGL == GL_TEXTURE_2D);
2578	texImageTarget = GL_TEXTURE_2D;
2579	}
2580
2581	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2582	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2583
2584	if (transfer == SVGA3D_READ_HOST_VRAM)
2585	{
2586	GLint activeTexture;
2587
2588	/* Must bind texture to the current context in order to read it. */
2589	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2590	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2591
2592	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2593	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2594
2595	/* Set row length and alignment of the input data. */
2596	VMSVGAPACKPARAMS SavedParams;
2597	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2598
2599	glGetTexImage(texImageTarget,
2600	uHostMipmap,
2601	pSurface->formatGL,
2602	pSurface->typeGL,
2603	pDoubleBuffer);
2604	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2605
2606	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2607
2608	/* Restore the old active texture. */
2609	glBindTexture(pSurface->targetGL, activeTexture);
2610	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2611
2612	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2613	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2614	}
2615	else
2616	{
2617	/* The buffer will contain only the copied rectangle. */
2618	offHst = 0;
2619	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2620	}
2621
2622	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2623
2624	rc = vmsvgaGMRTransfer(pThis,
2625	transfer,
2626	pDoubleBuffer,
2627	pMipLevel->cbSurface,
2628	offHst,
2629	cbSurfacePitch,
2630	GuestPtr,
2631	offGst,
2632	cbGuestPitch,
2633	cBlocksX * pSurface->cbBlock,
2634	cBlocksY);
2635	AssertRC(rc);
2636
2637	/* Update the opengl surface data. */
2638	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2639	{
2640	GLint activeTexture = 0;
2641	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2642	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2643
2644	/* Must bind texture to the current context in order to change it. */
2645	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2646	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2647
2648	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2649
2650	/* Set row length and alignment of the input data. */
2651	VMSVGAPACKPARAMS SavedParams;
2652	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2653
2654	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2655	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2656	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2657	{
2658	pState->ext.glCompressedTexSubImage2D(texImageTarget,
2659	uHostMipmap,
2660	pBox->x,
2661	pBox->y,
2662	pBox->w,
2663	pBox->h,
2664	pSurface->internalFormatGL,
2665	cbSurfacePitch * cBlocksY,
2666	pDoubleBuffer);
2667	}
2668	else
2669	{
2670	glTexSubImage2D(texImageTarget,
2671	uHostMipmap,
2672	u32HostBlockX,
2673	u32HostBlockY,
2674	cBlocksX,
2675	cBlocksY,
2676	pSurface->formatGL,
2677	pSurface->typeGL,
2678	pDoubleBuffer);
2679	}
2680	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2681
2682	/* Restore old values. */
2683	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2684
2685	/* Restore the old active texture. */
2686	glBindTexture(pSurface->targetGL, activeTexture);
2687	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2688	}
2689
2690	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2691
2692	/* Free the double buffer. */
2693	RTMemFree(pDoubleBuffer);
2694	break;
2695	}
2696
2697	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2698	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2699	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2700	{
2701	/* Buffers are uncompressed. */
2702	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2703
2704	/* Caller already clipped pBox and buffers are 1-dimensional. */
2705	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2706
2707	VMSVGA3D_CLEAR_GL_ERRORS();
2708	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2709	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2710	{
2711	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2712	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2713	if (RT_LIKELY(pbData != NULL))
2714	{
2715	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2716	GLint cbStrictBufSize;
2717	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2718	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2719	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2720	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2721	#endif
2722	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2723	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2724	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2725	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2726
2727	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2728
2729	rc = vmsvgaGMRTransfer(pThis,
2730	transfer,
2731	pbData,
2732	pMipLevel->cbSurface,
2733	offHst,
2734	pMipLevel->cbSurfacePitch,
2735	GuestPtr,
2736	pBox->srcx * pSurface->cbBlock,
2737	cbGuestPitch,
2738	pBox->w * pSurface->cbBlock,
2739	pBox->h);
2740	AssertRC(rc);
2741
2742	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2743
2744	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2745	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2746	}
2747	else
2748	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2749	}
2750	else
2751	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2752	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2753	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2754	break;
2755	}
2756
2757	default:
2758	AssertFailed();
2759	break;
2760	}
2761
2762	return rc;
2763	}
2764
2765	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2766	{
2767	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2768	PVMSVGA3DSURFACE pSurface;
2769	int rc = VINF_SUCCESS;
2770	PVMSVGA3DCONTEXT pContext;
2771	uint32_t cid;
2772	GLint activeTexture = 0;
2773
2774	AssertReturn(pState, VERR_NO_MEMORY);
2775
2776	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2777	AssertRCReturn(rc, rc);
2778
2779	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2780	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2781	pSurface->autogenFilter = filter;
2782
2783	LogFunc(("sid=%x filter=%d\n", sid, filter));
2784
2785	cid = SVGA3D_INVALID_ID;
2786	pContext = &pState->SharedCtx;
2787	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2788
2789	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2790	{
2791	/* Unknown surface type; turn it into a texture. */
2792	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2793	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2794	AssertRCReturn(rc, rc);
2795	}
2796	else
2797	{
2798	/** @todo new filter */
2799	AssertFailed();
2800	}
2801
2802	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2803	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2804
2805	/* Must bind texture to the current context in order to change it. */
2806	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2807	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2808
2809	/* Generate the mip maps. */
2810	pState->ext.glGenerateMipmap(pSurface->targetGL);
2811	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2812
2813	/* Restore the old texture. */
2814	glBindTexture(pSurface->targetGL, activeTexture);
2815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2816
2817	return VINF_SUCCESS;
2818	}
2819
2820
2821	#ifdef RT_OS_LINUX
2822	/**
2823	* X11 event handling thread.
2824	*
2825	* @returns VINF_SUCCESS (ignored)
2826	* @param hThreadSelf thread handle
2827	* @param pvUser pointer to pState structure
2828	*/
2829	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
2830	{
2831	RT_NOREF(hThreadSelf);
2832	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
2833	while (!pState->bTerminate)
2834	{
2835	while (XPending(pState->display) > 0)
2836	{
2837	XEvent event;
2838	XNextEvent(pState->display, &event);
2839
2840	switch (event.type)
2841	{
2842	default:
2843	break;
2844	}
2845	}
2846	/* sleep for 16ms to not burn too many cycles */
2847	RTThreadSleep(16);
2848	}
2849	return VINF_SUCCESS;
2850	}
2851	#endif // RT_OS_LINUX
2852
2853
2854	/**
2855	* Create a new 3d context
2856	*
2857	* @returns VBox status code.
2858	* @param pThis VGA device instance data.
2859	* @param cid Context id
2860	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
2861	*/
2862	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
2863	{
2864	int rc;
2865	PVMSVGA3DCONTEXT pContext;
2866	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2867
2868	AssertReturn(pState, VERR_NO_MEMORY);
2869	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
2870	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
2871	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
2872	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
2873	#endif
2874
2875	Log(("vmsvga3dContextDefine id %x\n", cid));
2876
2877	if (cid == VMSVGA3D_SHARED_CTX_ID)
2878	pContext = &pState->SharedCtx;
2879	else
2880	{
2881	if (cid >= pState->cContexts)
2882	{
2883	/* Grow the array. */
2884	uint32_t cNew = RT_ALIGN(cid + 15, 16);
2885	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
2886	AssertReturn(pvNew, VERR_NO_MEMORY);
2887	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
2888	while (pState->cContexts < cNew)
2889	{
2890	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
2891	AssertReturn(pContext, VERR_NO_MEMORY);
2892	pContext->id = SVGA3D_INVALID_ID;
2893	pState->papContexts[pState->cContexts++] = pContext;
2894	}
2895	}
2896	/* If one already exists with this id, then destroy it now. */
2897	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
2898	vmsvga3dContextDestroy(pThis, cid);
2899
2900	pContext = pState->papContexts[cid];
2901	}
2902
2903	/*
2904	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
2905	*/
2906	PVMSVGA3DCONTEXT pSharedCtx = NULL;
2907	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
2908	{
2909	pSharedCtx = &pState->SharedCtx;
2910	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
2911	{
2912	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
2913	AssertLogRelRCReturn(rc, rc);
2914	}
2915	}
2916
2917	/*
2918	* Initialize the context.
2919	*/
2920	memset(pContext, 0, sizeof(*pContext));
2921	pContext->id = cid;
2922	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
2923	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
2924
2925	pContext->state.shidVertex = SVGA3D_INVALID_ID;
2926	pContext->state.shidPixel = SVGA3D_INVALID_ID;
2927	pContext->idFramebuffer = OPENGL_INVALID_ID;
2928	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
2929	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
2930
2931	rc = ShaderContextCreate(&pContext->pShaderContext);
2932	AssertRCReturn(rc, rc);
2933
2934	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
2935	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
2936
2937	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
2938
2939	#ifdef RT_OS_WINDOWS
2940	/* Create a context window with minimal 4x4 size. We will never use the swapchain
2941	* to present the rendered image. Rendered images from the guest will be copied to
2942	* the VMSVGA SCREEN object, which can be either an offscreen render target or
2943	* system memory in the guest VRAM.
2944	*/
2945	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
2946	AssertRCReturn(rc, rc);
2947
2948	pContext->hdc = GetDC(pContext->hwnd);
2949	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
2950
2951	PIXELFORMATDESCRIPTOR pfd = {
2952	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
2953	1, /* version number */
2954	PFD_DRAW_TO_WINDOW \| /* support window */
2955	PFD_SUPPORT_OPENGL, /* support OpenGL */
2956	PFD_TYPE_RGBA, /* RGBA type */
2957	24, /* 24-bit color depth */
2958	0, 0, 0, 0, 0, 0, /* color bits ignored */
2959	8, /* alpha buffer */
2960	0, /* shift bit ignored */
2961	0, /* no accumulation buffer */
2962	0, 0, 0, 0, /* accum bits ignored */
2963	16, /* set depth buffer */
2964	16, /* set stencil buffer */
2965	0, /* no auxiliary buffer */
2966	PFD_MAIN_PLANE, /* main layer */
2967	0, /* reserved */
2968	0, 0, 0 /* layer masks ignored */
2969	};
2970	int pixelFormat;
2971	BOOL ret;
2972
2973	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2974	/** @todo is this really necessary?? */
2975	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2976	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2977
2978	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
2979	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2980
2981	pContext->hglrc = wglCreateContext(pContext->hdc);
2982	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
2983
2984	if (pSharedCtx)
2985	{
2986	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
2987	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
2988	}
2989
2990	#elif defined(RT_OS_DARWIN)
2991	/** @todo No overlay like on Windows. */
2992	VMSVGASCREENOBJECT *pScreen = vmsvgaGetScreenObject(pThis, 0);
2993	uint32_t const uWidth = pScreen ? pScreen->cWidth : -1;
2994	uint32_t const uHeight = pScreen ? pScreen->cHeight: -1;
2995
2996	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
2997
2998	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
2999	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3000	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3001	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3002	uWidth, uHeight,
3003	pShareContext, pContext->fOtherProfile);
3004
3005	#else
3006	if (pState->display == NULL)
3007	{
3008	/* get an X display and make sure we have glX 1.3 */
3009	pState->display = XOpenDisplay(0);
3010	Assert(pState->display);
3011	int glxMajor, glxMinor;
3012	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3013	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3014	/* start our X event handling thread */
3015	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3016	if (RT_FAILURE(rc))
3017	{
3018	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3019	return rc;
3020	}
3021	}
3022
3023	/* Create a small 4x4 window required for GL context. */
3024	int attrib[] =
3025	{
3026	GLX_RGBA,
3027	GLX_RED_SIZE, 1,
3028	GLX_GREEN_SIZE, 1,
3029	GLX_BLUE_SIZE, 1,
3030	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3031	GLX_DOUBLEBUFFER,
3032	None
3033	};
3034	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3035	XSetWindowAttributes swa;
3036	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3037	swa.border_pixel = 0;
3038	swa.background_pixel = 0;
3039	swa.event_mask = StructureNotifyMask;
3040	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3041	pContext->window = XCreateWindow(pState->display, XDefaultRootWindow(pState->display),
3042	0, 0, 4, 4,
3043	0, vi->depth, InputOutput,
3044	vi->visual, flags, &swa);
3045	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3046
3047	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3048
3049	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3050	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3051	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3052	#endif
3053
3054	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3055
3056	/* NULL during the first PowerOn call. */
3057	if (pState->ext.glGenFramebuffers)
3058	{
3059	/* Create a framebuffer object for this context. */
3060	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3061	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3062
3063	/* Bind the object to the framebuffer target. */
3064	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3065	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3066
3067	/* Create read and draw framebuffer objects for this context. */
3068	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3069	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3070
3071	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3072	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3073
3074	}
3075	#if 0
3076	/** @todo move to shader lib!!! */
3077	/* Clear the screen */
3078	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3079
3080	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3081	glClearIndex(0);
3082	glClearDepth(1);
3083	glClearStencil(0xffff);
3084	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3085	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3086	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3087	if (pState->ext.glProvokingVertex)
3088	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3089	/** @todo move to shader lib!!! */
3090	#endif
3091	return VINF_SUCCESS;
3092	}
3093
3094
3095	/**
3096	* Create a new 3d context
3097	*
3098	* @returns VBox status code.
3099	* @param pThis VGA device instance data.
3100	* @param cid Context id
3101	*/
3102	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3103	{
3104	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3105	}
3106
3107	/**
3108	* Destroys a 3d context.
3109	*
3110	* @returns VBox status code.
3111	* @param pThis VGA device instance data.
3112	* @param pContext The context to destroy.
3113	* @param cid Context id
3114	*/
3115	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3116	{
3117	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3118	AssertReturn(pState, VERR_NO_MEMORY);
3119	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3120	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3121	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3122
3123	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3124
3125	/* Destroy all leftover pixel shaders. */
3126	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3127	{
3128	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3129	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3130	}
3131	if (pContext->paPixelShader)
3132	RTMemFree(pContext->paPixelShader);
3133
3134	/* Destroy all leftover vertex shaders. */
3135	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3136	{
3137	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3138	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3139	}
3140	if (pContext->paVertexShader)
3141	RTMemFree(pContext->paVertexShader);
3142
3143	if (pContext->state.paVertexShaderConst)
3144	RTMemFree(pContext->state.paVertexShaderConst);
3145	if (pContext->state.paPixelShaderConst)
3146	RTMemFree(pContext->state.paPixelShaderConst);
3147
3148	if (pContext->pShaderContext)
3149	{
3150	int rc = ShaderContextDestroy(pContext->pShaderContext);
3151	AssertRC(rc);
3152	}
3153
3154	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3155	{
3156	/* Unbind the object from the framebuffer target. */
3157	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3158	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3159	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3161
3162	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3163	{
3164	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3165	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3166	}
3167	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3168	{
3169	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3171	}
3172	}
3173
3174	vmsvga3dOcclusionQueryDelete(pState, pContext);
3175
3176	#ifdef RT_OS_WINDOWS
3177	wglMakeCurrent(pContext->hdc, NULL);
3178	wglDeleteContext(pContext->hglrc);
3179	ReleaseDC(pContext->hwnd, pContext->hdc);
3180
3181	/* Destroy the window we've created. */
3182	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3183	AssertRC(rc);
3184	#elif defined(RT_OS_DARWIN)
3185	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3186	#elif defined(RT_OS_LINUX)
3187	glXMakeCurrent(pState->display, None, NULL);
3188	glXDestroyContext(pState->display, pContext->glxContext);
3189	XDestroyWindow(pState->display, pContext->window);
3190	#endif
3191
3192	memset(pContext, 0, sizeof(*pContext));
3193	pContext->id = SVGA3D_INVALID_ID;
3194
3195	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3196	return VINF_SUCCESS;
3197	}
3198
3199	/**
3200	* Destroy an existing 3d context
3201	*
3202	* @returns VBox status code.
3203	* @param pThis VGA device instance data.
3204	* @param cid Context id
3205	*/
3206	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3207	{
3208	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3209	AssertReturn(pState, VERR_WRONG_ORDER);
3210
3211	/*
3212	* Resolve the context and hand it to the common worker function.
3213	*/
3214	if ( cid < pState->cContexts
3215	&& pState->papContexts[cid]->id == cid)
3216	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3217
3218	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3219	return VINF_SUCCESS;
3220	}
3221
3222	/**
3223	* Worker for vmsvga3dChangeMode that resizes a context.
3224	*
3225	* @param pThis The VGA device instance data.
3226	* @param pState The VMSVGA3d state.
3227	* @param pContext The context.
3228	*/
3229	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3230	{
3231	#ifdef RT_OS_WINDOWS
3232	RT_NOREF3(pThis, pState, pContext);
3233	/* Do nothing. The window is not used for presenting. */
3234
3235	#elif defined(RT_OS_DARWIN)
3236	/** @todo No overlay like on Windows. */
3237	VMSVGASCREENOBJECT *pScreen = vmsvgaGetScreenObject(pThis, 0);
3238	uint32_t const uWidth = pScreen ? pScreen->cWidth : -1;
3239	uint32_t const uHeight = pScreen ? pScreen->cHeight: -1;
3240
3241	RT_NOREF(pState);
3242	vmsvga3dCocoaViewSetSize(pContext->cocoaView, uWidth, uHeight);
3243
3244	#elif defined(RT_OS_LINUX)
3245	/** @todo No overlay like on Windows. */
3246	VMSVGASCREENOBJECT *pScreen = vmsvgaGetScreenObject(pThis, 0);
3247	uint32_t const uWidth = pScreen ? pScreen->cWidth : -1;
3248	uint32_t const uHeight = pScreen ? pScreen->cHeight: -1;
3249
3250	XWindowChanges wc;
3251	wc.width = uWidth;
3252	wc.height = uHeight;
3253	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3254	#endif
3255	}
3256
3257	/* Handle resize */
3258	int vmsvga3dChangeMode(PVGASTATE pThis)
3259	{
3260	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3261	AssertReturn(pState, VERR_NO_MEMORY);
3262
3263	/* Resize the shared context too. */
3264	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3265	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3266
3267	/* Resize all active contexts. */
3268	for (uint32_t i = 0; i < pState->cContexts; i++)
3269	{
3270	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3271	if (pContext->id != SVGA3D_INVALID_ID)
3272	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3273	}
3274
3275	return VINF_SUCCESS;
3276	}
3277
3278
3279	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3280	{
3281	PVMSVGA3DCONTEXT pContext;
3282	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3283	AssertReturn(pState, VERR_NO_MEMORY);
3284	bool fModelViewChanged = false;
3285
3286	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3287
3288	if ( cid >= pState->cContexts
3289	\|\| pState->papContexts[cid]->id != cid)
3290	{
3291	Log(("vmsvga3dSetTransform invalid context id!\n"));
3292	return VERR_INVALID_PARAMETER;
3293	}
3294	pContext = pState->papContexts[cid];
3295	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3296
3297	/* Save this matrix for vm state save/restore. */
3298	pContext->state.aTransformState[type].fValid = true;
3299	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3300	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3301
3302	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)));
3303	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)));
3304	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)));
3305	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)));
3306
3307	switch (type)
3308	{
3309	case SVGA3D_TRANSFORM_VIEW:
3310	/* View * World = Model View */
3311	glMatrixMode(GL_MODELVIEW);
3312	glLoadMatrixf(matrix);
3313	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3314	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3315	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3316	fModelViewChanged = true;
3317	break;
3318
3319	case SVGA3D_TRANSFORM_PROJECTION:
3320	{
3321	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3322	AssertRCReturn(rc, rc);
3323	break;
3324	}
3325
3326	case SVGA3D_TRANSFORM_TEXTURE0:
3327	glMatrixMode(GL_TEXTURE);
3328	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3329	glLoadMatrixf(matrix);
3330	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3331	break;
3332
3333	case SVGA3D_TRANSFORM_TEXTURE1:
3334	case SVGA3D_TRANSFORM_TEXTURE2:
3335	case SVGA3D_TRANSFORM_TEXTURE3:
3336	case SVGA3D_TRANSFORM_TEXTURE4:
3337	case SVGA3D_TRANSFORM_TEXTURE5:
3338	case SVGA3D_TRANSFORM_TEXTURE6:
3339	case SVGA3D_TRANSFORM_TEXTURE7:
3340	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3341	return VERR_INVALID_PARAMETER;
3342
3343	case SVGA3D_TRANSFORM_WORLD:
3344	/* View * World = Model View */
3345	glMatrixMode(GL_MODELVIEW);
3346	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3347	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3348	else
3349	glLoadIdentity();
3350	glMultMatrixf(matrix);
3351	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3352	fModelViewChanged = true;
3353	break;
3354
3355	case SVGA3D_TRANSFORM_WORLD1:
3356	case SVGA3D_TRANSFORM_WORLD2:
3357	case SVGA3D_TRANSFORM_WORLD3:
3358	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3359	return VERR_INVALID_PARAMETER;
3360
3361	default:
3362	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3363	return VERR_INVALID_PARAMETER;
3364	}
3365
3366	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3367	if (fModelViewChanged)
3368	{
3369	/* Reprogram the clip planes. */
3370	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3371	{
3372	if (pContext->state.aClipPlane[j].fValid == true)
3373	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3374	}
3375
3376	/* Reprogram the light data. */
3377	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3378	{
3379	if (pContext->state.aLightData[j].fValidData == true)
3380	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3381	}
3382	}
3383
3384	return VINF_SUCCESS;
3385	}
3386
3387	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3388	{
3389	PVMSVGA3DCONTEXT pContext;
3390	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3391	AssertReturn(pState, VERR_NO_MEMORY);
3392
3393	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3394
3395	if ( cid >= pState->cContexts
3396	\|\| pState->papContexts[cid]->id != cid)
3397	{
3398	Log(("vmsvga3dSetZRange invalid context id!\n"));
3399	return VERR_INVALID_PARAMETER;
3400	}
3401	pContext = pState->papContexts[cid];
3402	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3403
3404	pContext->state.zRange = zRange;
3405	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3406
3407	if (zRange.min < -1.0)
3408	zRange.min = -1.0;
3409	if (zRange.max > 1.0)
3410	zRange.max = 1.0;
3411
3412	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3413	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3414	return VINF_SUCCESS;
3415	}
3416
3417	/**
3418	* Convert SVGA blend op value to its OpenGL equivalent
3419	*/
3420	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3421	{
3422	switch (blendOp)
3423	{
3424	case SVGA3D_BLENDOP_ZERO:
3425	return GL_ZERO;
3426	case SVGA3D_BLENDOP_ONE:
3427	return GL_ONE;
3428	case SVGA3D_BLENDOP_SRCCOLOR:
3429	return GL_SRC_COLOR;
3430	case SVGA3D_BLENDOP_INVSRCCOLOR:
3431	return GL_ONE_MINUS_SRC_COLOR;
3432	case SVGA3D_BLENDOP_SRCALPHA:
3433	return GL_SRC_ALPHA;
3434	case SVGA3D_BLENDOP_INVSRCALPHA:
3435	return GL_ONE_MINUS_SRC_ALPHA;
3436	case SVGA3D_BLENDOP_DESTALPHA:
3437	return GL_DST_ALPHA;
3438	case SVGA3D_BLENDOP_INVDESTALPHA:
3439	return GL_ONE_MINUS_DST_ALPHA;
3440	case SVGA3D_BLENDOP_DESTCOLOR:
3441	return GL_DST_COLOR;
3442	case SVGA3D_BLENDOP_INVDESTCOLOR:
3443	return GL_ONE_MINUS_DST_COLOR;
3444	case SVGA3D_BLENDOP_SRCALPHASAT:
3445	return GL_SRC_ALPHA_SATURATE;
3446	case SVGA3D_BLENDOP_BLENDFACTOR:
3447	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3448	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3449	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3450	default:
3451	AssertFailed();
3452	return GL_ONE;
3453	}
3454	}
3455
3456	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3457	{
3458	switch (blendEq)
3459	{
3460	case SVGA3D_BLENDEQ_ADD:
3461	return GL_FUNC_ADD;
3462	case SVGA3D_BLENDEQ_SUBTRACT:
3463	return GL_FUNC_SUBTRACT;
3464	case SVGA3D_BLENDEQ_REVSUBTRACT:
3465	return GL_FUNC_REVERSE_SUBTRACT;
3466	case SVGA3D_BLENDEQ_MINIMUM:
3467	return GL_MIN;
3468	case SVGA3D_BLENDEQ_MAXIMUM:
3469	return GL_MAX;
3470	default:
3471	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3472	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3473	return GL_FUNC_ADD;
3474	}
3475	}
3476
3477	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3478	{
3479	switch (cmpFunc)
3480	{
3481	case SVGA3D_CMP_NEVER:
3482	return GL_NEVER;
3483	case SVGA3D_CMP_LESS:
3484	return GL_LESS;
3485	case SVGA3D_CMP_EQUAL:
3486	return GL_EQUAL;
3487	case SVGA3D_CMP_LESSEQUAL:
3488	return GL_LEQUAL;
3489	case SVGA3D_CMP_GREATER:
3490	return GL_GREATER;
3491	case SVGA3D_CMP_NOTEQUAL:
3492	return GL_NOTEQUAL;
3493	case SVGA3D_CMP_GREATEREQUAL:
3494	return GL_GEQUAL;
3495	case SVGA3D_CMP_ALWAYS:
3496	return GL_ALWAYS;
3497	default:
3498	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3499	return GL_LESS;
3500	}
3501	}
3502
3503	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3504	{
3505	switch (stencilOp)
3506	{
3507	case SVGA3D_STENCILOP_KEEP:
3508	return GL_KEEP;
3509	case SVGA3D_STENCILOP_ZERO:
3510	return GL_ZERO;
3511	case SVGA3D_STENCILOP_REPLACE:
3512	return GL_REPLACE;
3513	case SVGA3D_STENCILOP_INCRSAT:
3514	return GL_INCR_WRAP;
3515	case SVGA3D_STENCILOP_DECRSAT:
3516	return GL_DECR_WRAP;
3517	case SVGA3D_STENCILOP_INVERT:
3518	return GL_INVERT;
3519	case SVGA3D_STENCILOP_INCR:
3520	return GL_INCR;
3521	case SVGA3D_STENCILOP_DECR:
3522	return GL_DECR;
3523	default:
3524	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3525	return GL_KEEP;
3526	}
3527	}
3528
3529	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3530	{
3531	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3532	PVMSVGA3DCONTEXT pContext;
3533	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3534	AssertReturn(pState, VERR_NO_MEMORY);
3535
3536	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3537
3538	if ( cid >= pState->cContexts
3539	\|\| pState->papContexts[cid]->id != cid)
3540	{
3541	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3542	return VERR_INVALID_PARAMETER;
3543	}
3544	pContext = pState->papContexts[cid];
3545	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3546
3547	for (unsigned i = 0; i < cRenderStates; i++)
3548	{
3549	GLenum enableCap = ~(GLenum)0;
3550	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3551	/* Save the render state for vm state saving. */
3552	if (pRenderState[i].state < SVGA3D_RS_MAX)
3553	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3554
3555	switch (pRenderState[i].state)
3556	{
3557	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3558	enableCap = GL_DEPTH_TEST;
3559	val = pRenderState[i].uintValue;
3560	break;
3561
3562	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3563	glDepthMask(!!pRenderState[i].uintValue);
3564	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3565	break;
3566
3567	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3568	enableCap = GL_ALPHA_TEST;
3569	val = pRenderState[i].uintValue;
3570	break;
3571
3572	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3573	enableCap = GL_DITHER;
3574	val = pRenderState[i].uintValue;
3575	break;
3576
3577	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3578	enableCap = GL_FOG;
3579	val = pRenderState[i].uintValue;
3580	break;
3581
3582	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3583	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3584	break;
3585
3586	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3587	enableCap = GL_LIGHTING;
3588	val = pRenderState[i].uintValue;
3589	break;
3590
3591	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3592	/* not applicable */
3593	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3594	break;
3595
3596	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3597	enableCap = GL_POINT_SPRITE_ARB;
3598	val = pRenderState[i].uintValue;
3599	break;
3600
3601	case SVGA3D_RS_POINTSIZE: /* float */
3602	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3603	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3604	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3605	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3606	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3607
3608	glPointSize(pRenderState[i].floatValue);
3609	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3610	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3611	break;
3612
3613	case SVGA3D_RS_POINTSIZEMIN: /* float */
3614	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3616	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3617	break;
3618
3619	case SVGA3D_RS_POINTSIZEMAX: /* float */
3620	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3621	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3622	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3623	break;
3624
3625	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3626	case SVGA3D_RS_POINTSCALE_A: /* float */
3627	case SVGA3D_RS_POINTSCALE_B: /* float */
3628	case SVGA3D_RS_POINTSCALE_C: /* float */
3629	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3630	break;
3631
3632	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3633	{
3634	GLfloat color[4]; /* red, green, blue, alpha */
3635
3636	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3637
3638	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3639	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3640	break;
3641	}
3642
3643	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3644	{
3645	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3646	for (uint32_t j = 0; j <= 5; j++)
3647	{
3648	if (pRenderState[i].uintValue & RT_BIT(j))
3649	glEnable(GL_CLIP_PLANE0 + j);
3650	else
3651	glDisable(GL_CLIP_PLANE0 + j);
3652	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3653	}
3654	break;
3655	}
3656
3657	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3658	{
3659	GLfloat color[4]; /* red, green, blue, alpha */
3660
3661	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3662
3663	glFogfv(GL_FOG_COLOR, color);
3664	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3665	break;
3666	}
3667
3668	case SVGA3D_RS_FOGSTART: /* float */
3669	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3670	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3671	break;
3672
3673	case SVGA3D_RS_FOGEND: /* float */
3674	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3675	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3676	break;
3677
3678	case SVGA3D_RS_FOGDENSITY: /* float */
3679	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3680	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3681	break;
3682
3683	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3684	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3685	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3686	break;
3687
3688	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3689	{
3690	SVGA3dFogMode mode;
3691	mode.uintValue = pRenderState[i].uintValue;
3692
3693	enableCap = GL_FOG_MODE;
3694	switch (mode.s.function)
3695	{
3696	case SVGA3D_FOGFUNC_EXP:
3697	val = GL_EXP;
3698	break;
3699	case SVGA3D_FOGFUNC_EXP2:
3700	val = GL_EXP2;
3701	break;
3702	case SVGA3D_FOGFUNC_LINEAR:
3703	val = GL_LINEAR;
3704	break;
3705	default:
3706	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3707	break;
3708	}
3709
3710	/** @todo how to switch between vertex and pixel fog modes??? */
3711	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3712	#if 0
3713	/* The fog type determines the render state. */
3714	switch (mode.s.type)
3715	{
3716	case SVGA3D_FOGTYPE_VERTEX:
3717	renderState = D3DRS_FOGVERTEXMODE;
3718	break;
3719	case SVGA3D_FOGTYPE_PIXEL:
3720	renderState = D3DRS_FOGTABLEMODE;
3721	break;
3722	default:
3723	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3724	break;
3725	}
3726	#endif
3727
3728	/* Set the fog base to depth or range. */
3729	switch (mode.s.base)
3730	{
3731	case SVGA3D_FOGBASE_DEPTHBASED:
3732	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3733	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3734	break;
3735	case SVGA3D_FOGBASE_RANGEBASED:
3736	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3737	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3738	break;
3739	default:
3740	/* ignore */
3741	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3742	break;
3743	}
3744	break;
3745	}
3746
3747	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3748	{
3749	SVGA3dFillMode mode;
3750
3751	mode.uintValue = pRenderState[i].uintValue;
3752
3753	switch (mode.s.mode)
3754	{
3755	case SVGA3D_FILLMODE_POINT:
3756	val = GL_POINT;
3757	break;
3758	case SVGA3D_FILLMODE_LINE:
3759	val = GL_LINE;
3760	break;
3761	case SVGA3D_FILLMODE_FILL:
3762	val = GL_FILL;
3763	break;
3764	default:
3765	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3766	break;
3767	}
3768	/* @note only front and back faces */
3769	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3770	glPolygonMode(GL_FRONT_AND_BACK, val);
3771	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3772	break;
3773	}
3774
3775	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3776	switch (pRenderState[i].uintValue)
3777	{
3778	case SVGA3D_SHADEMODE_FLAT:
3779	val = GL_FLAT;
3780	break;
3781
3782	case SVGA3D_SHADEMODE_SMOOTH:
3783	val = GL_SMOOTH;
3784	break;
3785
3786	default:
3787	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3788	break;
3789	}
3790
3791	glShadeModel(val);
3792	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3793	break;
3794
3795	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3796	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3797	/** @todo */
3798	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3799	/*
3800	renderState = D3DRS_LINEPATTERN;
3801	val = pRenderState[i].uintValue;
3802	*/
3803	break;
3804
3805	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3806	enableCap = GL_LINE_SMOOTH;
3807	val = pRenderState[i].uintValue;
3808	break;
3809
3810	case SVGA3D_RS_LINEWIDTH: /* float */
3811	glLineWidth(pRenderState[i].floatValue);
3812	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3813	break;
3814
3815	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3816	{
3817	/* Refresh the blending state based on the new enable setting.
3818	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3819	*/
3820	static SVGA3dRenderStateName const saRefreshState[] =
3821	{
3822	SVGA3D_RS_SRCBLEND,
3823	SVGA3D_RS_BLENDEQUATION
3824	};
3825	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3826	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3827	{
3828	renderstate[j].state = saRefreshState[j];
3829	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3830	}
3831
3832	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3833	AssertRCReturn(rc, rc);
3834
3835	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3836	continue; /* Ignore if blend is enabled */
3837	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3838	} RT_FALL_THRU();
3839
3840	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3841	enableCap = GL_BLEND;
3842	val = pRenderState[i].uintValue;
3843	break;
3844
3845	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
3846	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
3847	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
3848	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
3849	{
3850	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
3851	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
3852
3853	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
3854	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3855	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
3856	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3857	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
3858	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3859	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
3860	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3861
3862	switch (pRenderState[i].state)
3863	{
3864	case SVGA3D_RS_SRCBLEND:
3865	srcRGB = blendop;
3866	break;
3867	case SVGA3D_RS_DSTBLEND:
3868	dstRGB = blendop;
3869	break;
3870	case SVGA3D_RS_SRCBLENDALPHA:
3871	srcAlpha = blendop;
3872	break;
3873	case SVGA3D_RS_DSTBLENDALPHA:
3874	dstAlpha = blendop;
3875	break;
3876	default:
3877	/* not possible; shut up gcc */
3878	AssertFailed();
3879	break;
3880	}
3881
3882	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3883	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
3884	else
3885	glBlendFunc(srcRGB, dstRGB);
3886	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3887	break;
3888	}
3889
3890	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
3891	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
3892	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3893	{
3894	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
3895	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
3896	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
3897	}
3898	else
3899	{
3900	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3901	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3902	#else
3903	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3904	#endif
3905	}
3906	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3907	break;
3908
3909	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
3910	{
3911	GLfloat red, green, blue, alpha;
3912
3913	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
3914
3915	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3916	glBlendColor(red, green, blue, alpha);
3917	#else
3918	pState->ext.glBlendColor(red, green, blue, alpha);
3919	#endif
3920	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3921	break;
3922	}
3923
3924	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
3925	{
3926	GLenum mode = GL_BACK; /* default for OpenGL */
3927
3928	switch (pRenderState[i].uintValue)
3929	{
3930	case SVGA3D_FACE_NONE:
3931	break;
3932	case SVGA3D_FACE_FRONT:
3933	mode = GL_FRONT;
3934	break;
3935	case SVGA3D_FACE_BACK:
3936	mode = GL_BACK;
3937	break;
3938	case SVGA3D_FACE_FRONT_BACK:
3939	mode = GL_FRONT_AND_BACK;
3940	break;
3941	default:
3942	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3943	break;
3944	}
3945	enableCap = GL_CULL_FACE;
3946	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
3947	{
3948	glCullFace(mode);
3949	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3950	val = 1;
3951	}
3952	else
3953	val = 0;
3954	break;
3955	}
3956
3957	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
3958	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
3959	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3960	break;
3961
3962	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
3963	{
3964	GLclampf ref;
3965
3966	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
3967	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3968	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
3969	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3970	break;
3971	}
3972
3973	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
3974	{
3975	GLint func;
3976
3977	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
3978	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3979	glAlphaFunc(func, pRenderState[i].floatValue);
3980	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3981	break;
3982	}
3983
3984	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
3985	{
3986	/* Refresh the stencil state based on the new enable setting.
3987	* This will take existing states and set them using either glStencil or glStencil*Separate.
3988	*/
3989	static SVGA3dRenderStateName const saRefreshState[] =
3990	{
3991	SVGA3D_RS_STENCILFUNC,
3992	SVGA3D_RS_STENCILFAIL,
3993	SVGA3D_RS_CCWSTENCILFUNC,
3994	SVGA3D_RS_CCWSTENCILFAIL
3995	};
3996	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3997	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3998	{
3999	renderstate[j].state = saRefreshState[j];
4000	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4001	}
4002
4003	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4004	AssertRCReturn(rc, rc);
4005
4006	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4007	continue; /* Ignore if stencil is enabled */
4008	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4009	} RT_FALL_THRU();
4010
4011	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4012	enableCap = GL_STENCIL_TEST;
4013	val = pRenderState[i].uintValue;
4014	break;
4015
4016	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4017	case SVGA3D_RS_STENCILREF: /* uint32_t */
4018	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4019	{
4020	GLint func, ref;
4021	GLuint mask;
4022
4023	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4024	glGetIntegerv(GL_STENCIL_FUNC, &func);
4025	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4026	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4028	glGetIntegerv(GL_STENCIL_REF, &ref);
4029	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4030
4031	/* Update the changed value. */
4032	switch (pRenderState[i].state)
4033	{
4034	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4035	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4036	break;
4037
4038	case SVGA3D_RS_STENCILREF: /* uint32_t */
4039	ref = pRenderState[i].uintValue;
4040	break;
4041
4042	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4043	mask = pRenderState[i].uintValue;
4044	break;
4045
4046	default:
4047	/* not possible; shut up gcc */
4048	AssertFailed();
4049	break;
4050	}
4051
4052	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4053	{
4054	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4055	}
4056	else
4057	{
4058	glStencilFunc(func, ref, mask);
4059	}
4060	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4061	break;
4062	}
4063
4064	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4065	glStencilMask(pRenderState[i].uintValue);
4066	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4067	break;
4068
4069	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4070	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4071	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4072	{
4073	GLint sfail, dpfail, dppass;
4074	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4075
4076	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4077	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4078	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4079	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4080	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4081	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4082
4083	switch (pRenderState[i].state)
4084	{
4085	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4086	sfail = stencilop;
4087	break;
4088	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4089	dpfail = stencilop;
4090	break;
4091	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4092	dppass = stencilop;
4093	break;
4094	default:
4095	/* not possible; shut up gcc */
4096	AssertFailed();
4097	break;
4098	}
4099	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4100	{
4101	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4102	}
4103	else
4104	{
4105	glStencilOp(sfail, dpfail, dppass);
4106	}
4107	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4108	break;
4109	}
4110
4111	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4112	{
4113	GLint ref;
4114	GLuint mask;
4115	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4116
4117	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4118	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4119	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4120	glGetIntegerv(GL_STENCIL_REF, &ref);
4121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4122
4123	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4125	break;
4126	}
4127
4128	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4129	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4130	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4131	{
4132	GLint sfail, dpfail, dppass;
4133	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4134
4135	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4137	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4139	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4141
4142	switch (pRenderState[i].state)
4143	{
4144	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4145	sfail = stencilop;
4146	break;
4147	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4148	dpfail = stencilop;
4149	break;
4150	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4151	dppass = stencilop;
4152	break;
4153	default:
4154	/* not possible; shut up gcc */
4155	AssertFailed();
4156	break;
4157	}
4158	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4160	break;
4161	}
4162
4163	case SVGA3D_RS_ZBIAS: /* float */
4164	/** @todo unknown meaning; depth bias is not identical
4165	renderState = D3DRS_DEPTHBIAS;
4166	val = pRenderState[i].uintValue;
4167	*/
4168	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4169	break;
4170
4171	case SVGA3D_RS_DEPTHBIAS: /* float */
4172	{
4173	GLfloat factor;
4174
4175	/** @todo not sure if the d3d & ogl definitions are identical. */
4176
4177	/* Do not change the factor part. */
4178	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4180
4181	glPolygonOffset(factor, pRenderState[i].floatValue);
4182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4183	break;
4184	}
4185
4186	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4187	{
4188	GLfloat units;
4189
4190	/** @todo not sure if the d3d & ogl definitions are identical. */
4191
4192	/* Do not change the factor part. */
4193	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4194	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4195
4196	glPolygonOffset(pRenderState[i].floatValue, units);
4197	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4198	break;
4199	}
4200
4201	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4202	{
4203	GLboolean red, green, blue, alpha;
4204	SVGA3dColorMask mask;
4205
4206	mask.uintValue = pRenderState[i].uintValue;
4207
4208	red = mask.s.red;
4209	green = mask.s.green;
4210	blue = mask.s.blue;
4211	alpha = mask.s.alpha;
4212
4213	glColorMask(red, green, blue, alpha);
4214	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4215	break;
4216	}
4217
4218	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4219	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4220	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4221	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4222	break;
4223
4224	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4225	enableCap = GL_SCISSOR_TEST;
4226	val = pRenderState[i].uintValue;
4227	break;
4228
4229	#if 0
4230	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4231	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4232	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4233	val = pRenderState[i].uintValue;
4234	break;
4235
4236	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4237	renderState = D3DRS_SPECULARMATERIALSOURCE;
4238	val = pRenderState[i].uintValue;
4239	break;
4240
4241	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4242	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4243	val = pRenderState[i].uintValue;
4244	break;
4245
4246	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4247	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4248	val = pRenderState[i].uintValue;
4249	break;
4250	#endif
4251
4252	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4253	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4254	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4255	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4256	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4257	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4258	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4259	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4260	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4261	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4262	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4263	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4264	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4265	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4266	break;
4267
4268	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4269	case SVGA3D_RS_TWEENFACTOR: /* float */
4270	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4271	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4272	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4273	break;
4274
4275	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4276	enableCap = GL_MULTISAMPLE;
4277	val = pRenderState[i].uintValue;
4278	break;
4279
4280	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4281	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4282	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4283	break;
4284
4285	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4286	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4287	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4288	/*
4289	renderState = D3DRS_COORDINATETYPE;
4290	val = pRenderState[i].uintValue;
4291	*/
4292	break;
4293
4294	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4295	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4296	/* Invert the selected mode because of y-inversion (?) */
4297	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4298	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4299	break;
4300
4301	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4302	//AssertFailed();
4303	/*
4304	D3DRS_SRGBWRITEENABLE ??
4305	renderState = D3DRS_OUTPUTGAMMA;
4306	val = pRenderState[i].uintValue;
4307	*/
4308	break;
4309
4310	#if 0
4311
4312	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4313	//AssertFailed();
4314	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4315	val = pRenderState[i].uintValue;
4316	break;
4317
4318	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4319	renderState = D3DRS_TEXTUREFACTOR;
4320	val = pRenderState[i].uintValue;
4321	break;
4322
4323	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4324	renderState = D3DRS_LOCALVIEWER;
4325	val = pRenderState[i].uintValue;
4326	break;
4327
4328	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4329	AssertFailed();
4330	/*
4331	renderState = D3DRS_ZVISIBLE;
4332	val = pRenderState[i].uintValue;
4333	*/
4334	break;
4335
4336	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4337	renderState = D3DRS_CLIPPING;
4338	val = pRenderState[i].uintValue;
4339	break;
4340
4341	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4342	glTexParameter GL_TEXTURE_WRAP_S
4343	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4344	renderState = D3DRS_WRAP0;
4345	val = pRenderState[i].uintValue;
4346	break;
4347
4348	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4349	glTexParameter GL_TEXTURE_WRAP_T
4350	renderState = D3DRS_WRAP1;
4351	val = pRenderState[i].uintValue;
4352	break;
4353
4354	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4355	glTexParameter GL_TEXTURE_WRAP_R
4356	renderState = D3DRS_WRAP2;
4357	val = pRenderState[i].uintValue;
4358	break;
4359
4360
4361	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4362	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4363	val = pRenderState[i].uintValue;
4364	break;
4365
4366
4367	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4368	renderState = D3DRS_BLENDOPALPHA;
4369	val = pRenderState[i].uintValue;
4370	break;
4371
4372	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4373	AssertFailed();
4374	/*
4375	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4376	val = pRenderState[i].uintValue;
4377	*/
4378	break;
4379
4380	#endif
4381	default:
4382	AssertFailed();
4383	break;
4384	}
4385
4386	if (enableCap != ~(GLenum)0)
4387	{
4388	if (val)
4389	glEnable(enableCap);
4390	else
4391	glDisable(enableCap);
4392	}
4393	}
4394
4395	return VINF_SUCCESS;
4396	}
4397
4398	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4399	{
4400	PVMSVGA3DCONTEXT pContext;
4401	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4402	PVMSVGA3DSURFACE pRenderTarget;
4403
4404	AssertReturn(pState, VERR_NO_MEMORY);
4405	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4406
4407	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4408
4409	if ( cid >= pState->cContexts
4410	\|\| pState->papContexts[cid]->id != cid)
4411	{
4412	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4413	return VERR_INVALID_PARAMETER;
4414	}
4415	pContext = pState->papContexts[cid];
4416	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4417
4418	/* Save for vm state save/restore. */
4419	pContext->state.aRenderTargets[type] = target.sid;
4420
4421	if (target.sid == SVGA3D_INVALID_ID)
4422	{
4423	/* Disable render target. */
4424	switch (type)
4425	{
4426	case SVGA3D_RT_DEPTH:
4427	case SVGA3D_RT_STENCIL:
4428	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4429	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4430	break;
4431
4432	case SVGA3D_RT_COLOR0:
4433	case SVGA3D_RT_COLOR1:
4434	case SVGA3D_RT_COLOR2:
4435	case SVGA3D_RT_COLOR3:
4436	case SVGA3D_RT_COLOR4:
4437	case SVGA3D_RT_COLOR5:
4438	case SVGA3D_RT_COLOR6:
4439	case SVGA3D_RT_COLOR7:
4440	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4442	break;
4443
4444	default:
4445	AssertFailedReturn(VERR_INVALID_PARAMETER);
4446	}
4447	return VINF_SUCCESS;
4448	}
4449
4450	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4451	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4452	pRenderTarget = pState->papSurfaces[target.sid];
4453
4454	switch (type)
4455	{
4456	case SVGA3D_RT_DEPTH:
4457	case SVGA3D_RT_STENCIL:
4458	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4459	#if 1
4460	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4461	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4462	{
4463	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4464	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4465	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4466	AssertRCReturn(rc, rc);
4467	}
4468
4469	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4470	Assert(!pRenderTarget->fDirty);
4471
4472	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4473
4474	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4475	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4476	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4478	#else
4479	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4480	{
4481	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4482	pContext = &pState->SharedCtx;
4483	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4484
4485	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4486	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4487
4488	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4489	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4490
4491	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4492	pRenderTarget->internalFormatGL,
4493	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4494	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4495	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4496
4497	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4498	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4499
4500	pContext = pState->papContexts[cid];
4501	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4502	pRenderTarget->idWeakContextAssociation = cid;
4503	}
4504
4505	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4506	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4507	Assert(!pRenderTarget->fDirty);
4508	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4509
4510	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4511
4512	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4513	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4514	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4515	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4516	#endif
4517	break;
4518
4519	case SVGA3D_RT_COLOR0:
4520	case SVGA3D_RT_COLOR1:
4521	case SVGA3D_RT_COLOR2:
4522	case SVGA3D_RT_COLOR3:
4523	case SVGA3D_RT_COLOR4:
4524	case SVGA3D_RT_COLOR5:
4525	case SVGA3D_RT_COLOR6:
4526	case SVGA3D_RT_COLOR7:
4527	{
4528	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4529	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4530	{
4531	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));
4532	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4533	AssertRCReturn(rc, rc);
4534	}
4535
4536	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4537	Assert(!pRenderTarget->fDirty);
4538
4539	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4540
4541	GLenum textarget;
4542	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4543	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4544	else
4545	textarget = GL_TEXTURE_2D;
4546	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4547	textarget, pRenderTarget->oglId.texture, target.mipmap);
4548	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4549
4550	#ifdef DEBUG
4551	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4552	if (status != GL_FRAMEBUFFER_COMPLETE)
4553	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4554	#endif
4555	/** @todo use glDrawBuffers too? */
4556	break;
4557	}
4558
4559	default:
4560	AssertFailedReturn(VERR_INVALID_PARAMETER);
4561	}
4562
4563	return VINF_SUCCESS;
4564	}
4565
4566	#if 0
4567	/**
4568	* Convert SVGA texture combiner value to its D3D equivalent
4569	*/
4570	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4571	{
4572	switch (value)
4573	{
4574	case SVGA3D_TC_DISABLE:
4575	return D3DTOP_DISABLE;
4576	case SVGA3D_TC_SELECTARG1:
4577	return D3DTOP_SELECTARG1;
4578	case SVGA3D_TC_SELECTARG2:
4579	return D3DTOP_SELECTARG2;
4580	case SVGA3D_TC_MODULATE:
4581	return D3DTOP_MODULATE;
4582	case SVGA3D_TC_ADD:
4583	return D3DTOP_ADD;
4584	case SVGA3D_TC_ADDSIGNED:
4585	return D3DTOP_ADDSIGNED;
4586	case SVGA3D_TC_SUBTRACT:
4587	return D3DTOP_SUBTRACT;
4588	case SVGA3D_TC_BLENDTEXTUREALPHA:
4589	return D3DTOP_BLENDTEXTUREALPHA;
4590	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4591	return D3DTOP_BLENDDIFFUSEALPHA;
4592	case SVGA3D_TC_BLENDCURRENTALPHA:
4593	return D3DTOP_BLENDCURRENTALPHA;
4594	case SVGA3D_TC_BLENDFACTORALPHA:
4595	return D3DTOP_BLENDFACTORALPHA;
4596	case SVGA3D_TC_MODULATE2X:
4597	return D3DTOP_MODULATE2X;
4598	case SVGA3D_TC_MODULATE4X:
4599	return D3DTOP_MODULATE4X;
4600	case SVGA3D_TC_DSDT:
4601	AssertFailed(); /** @todo ??? */
4602	return D3DTOP_DISABLE;
4603	case SVGA3D_TC_DOTPRODUCT3:
4604	return D3DTOP_DOTPRODUCT3;
4605	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4606	return D3DTOP_BLENDTEXTUREALPHAPM;
4607	case SVGA3D_TC_ADDSIGNED2X:
4608	return D3DTOP_ADDSIGNED2X;
4609	case SVGA3D_TC_ADDSMOOTH:
4610	return D3DTOP_ADDSMOOTH;
4611	case SVGA3D_TC_PREMODULATE:
4612	return D3DTOP_PREMODULATE;
4613	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4614	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4615	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4616	return D3DTOP_MODULATECOLOR_ADDALPHA;
4617	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4618	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4619	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4620	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4621	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4622	return D3DTOP_BUMPENVMAPLUMINANCE;
4623	case SVGA3D_TC_MULTIPLYADD:
4624	return D3DTOP_MULTIPLYADD;
4625	case SVGA3D_TC_LERP:
4626	return D3DTOP_LERP;
4627	default:
4628	AssertFailed();
4629	return D3DTOP_DISABLE;
4630	}
4631	}
4632
4633	/**
4634	* Convert SVGA texture arg data value to its D3D equivalent
4635	*/
4636	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4637	{
4638	switch (value)
4639	{
4640	case SVGA3D_TA_CONSTANT:
4641	return D3DTA_CONSTANT;
4642	case SVGA3D_TA_PREVIOUS:
4643	return D3DTA_CURRENT; /* current = previous */
4644	case SVGA3D_TA_DIFFUSE:
4645	return D3DTA_DIFFUSE;
4646	case SVGA3D_TA_TEXTURE:
4647	return D3DTA_TEXTURE;
4648	case SVGA3D_TA_SPECULAR:
4649	return D3DTA_SPECULAR;
4650	default:
4651	AssertFailed();
4652	return 0;
4653	}
4654	}
4655
4656	/**
4657	* Convert SVGA texture transform flag value to its D3D equivalent
4658	*/
4659	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4660	{
4661	switch (value)
4662	{
4663	case SVGA3D_TEX_TRANSFORM_OFF:
4664	return D3DTTFF_DISABLE;
4665	case SVGA3D_TEX_TRANSFORM_S:
4666	return D3DTTFF_COUNT1; /** @todo correct? */
4667	case SVGA3D_TEX_TRANSFORM_T:
4668	return D3DTTFF_COUNT2; /** @todo correct? */
4669	case SVGA3D_TEX_TRANSFORM_R:
4670	return D3DTTFF_COUNT3; /** @todo correct? */
4671	case SVGA3D_TEX_TRANSFORM_Q:
4672	return D3DTTFF_COUNT4; /** @todo correct? */
4673	case SVGA3D_TEX_PROJECTED:
4674	return D3DTTFF_PROJECTED;
4675	default:
4676	AssertFailed();
4677	return 0;
4678	}
4679	}
4680	#endif
4681
4682	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4683	{
4684	switch (value)
4685	{
4686	case SVGA3D_TEX_ADDRESS_WRAP:
4687	return GL_REPEAT;
4688	case SVGA3D_TEX_ADDRESS_MIRROR:
4689	return GL_MIRRORED_REPEAT;
4690	case SVGA3D_TEX_ADDRESS_CLAMP:
4691	return GL_CLAMP_TO_EDGE;
4692	case SVGA3D_TEX_ADDRESS_BORDER:
4693	return GL_CLAMP_TO_BORDER;
4694	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4695	AssertFailed();
4696	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4697
4698	case SVGA3D_TEX_ADDRESS_EDGE:
4699	case SVGA3D_TEX_ADDRESS_INVALID:
4700	default:
4701	AssertFailed();
4702	return GL_REPEAT; /* default */
4703	}
4704	}
4705
4706	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4707	{
4708	switch (value)
4709	{
4710	case SVGA3D_TEX_FILTER_NONE:
4711	case SVGA3D_TEX_FILTER_LINEAR:
4712	return GL_LINEAR;
4713	case SVGA3D_TEX_FILTER_NEAREST:
4714	return GL_NEAREST;
4715	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4716	/** @todo */
4717	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4718	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4719	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4720	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4721	default:
4722	AssertFailed();
4723	return GL_LINEAR; /* default */
4724	}
4725	}
4726
4727	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4728	{
4729	/* flip the red and blue bytes */
4730	uint8_t blue = value & 0xff;
4731	uint8_t red = (value >> 16) & 0xff;
4732	return (value & 0xff00ff00) \| red \| (blue << 16);
4733	}
4734
4735	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4736	{
4737	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4738	GLenum currentStage = ~(GLenum)0;
4739	PVMSVGA3DCONTEXT pContext;
4740	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4741	AssertReturn(pState, VERR_NO_MEMORY);
4742
4743	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4744
4745	if ( cid >= pState->cContexts
4746	\|\| pState->papContexts[cid]->id != cid)
4747	{
4748	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4749	return VERR_INVALID_PARAMETER;
4750	}
4751	pContext = pState->papContexts[cid];
4752	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4753
4754	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4755	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4756
4757	for (uint32_t i = 0; i < cTextureStates; ++i)
4758	{
4759	GLenum textureType = ~(GLenum)0;
4760	#if 0
4761	GLenum samplerType = ~(GLenum)0;
4762	#endif
4763
4764	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4765	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4766
4767	/* Record the texture state for vm state saving. */
4768	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4769	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4770	{
4771	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4772	}
4773
4774	/* Activate the right texture unit for subsequent texture state changes. */
4775	if (pTextureState[i].stage != currentStage \|\| i == 0)
4776	{
4777	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4778	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4779	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4780	{
4781	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4783	currentStage = pTextureState[i].stage;
4784	}
4785	else
4786	{
4787	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4788	continue;
4789	}
4790
4791	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4792	{
4793	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4794	AssertRCReturn(rc, rc);
4795	}
4796	else
4797	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4798	}
4799
4800	switch (pTextureState[i].name)
4801	{
4802	case SVGA3D_TS_BUMPENVMAT00: /* float */
4803	case SVGA3D_TS_BUMPENVMAT01: /* float */
4804	case SVGA3D_TS_BUMPENVMAT10: /* float */
4805	case SVGA3D_TS_BUMPENVMAT11: /* float */
4806	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4807	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4808	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4809	break;
4810
4811	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4812	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4813	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4814	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4815	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4816	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4817	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4818	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4819	/** @todo not used by MesaGL */
4820	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4821	break;
4822	#if 0
4823
4824	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4825	textureType = D3DTSS_TEXCOORDINDEX;
4826	val = pTextureState[i].value;
4827	break;
4828
4829	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4830	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4831	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4832	break;
4833	#endif
4834
4835	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4836	{
4837	uint32_t const sid = pTextureState[i].value;
4838
4839	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4840	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4841
4842	/* Only if texture actually changed. */ /// @todo needs testing.
4843	if (pContext->aSidActiveTextures[currentStage] != sid)
4844	{
4845	if (pCurrentTextureSurface)
4846	{
4847	/* Unselect the currently associated texture. */
4848	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4849	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4850
4851	if (currentStage < 8)
4852	{
4853	/* Necessary for the fixed pipeline. */
4854	glDisable(pCurrentTextureSurface->targetGL);
4855	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4856	}
4857
4858	pCurrentTextureSurface = NULL;
4859	}
4860
4861	if (sid == SVGA3D_INVALID_ID)
4862	{
4863	Assert(pCurrentTextureSurface == NULL);
4864	}
4865	else
4866	{
4867	PVMSVGA3DSURFACE pSurface;
4868	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
4869	AssertRCReturn(rc, rc);
4870
4871	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
4872	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
4873	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
4874
4875	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
4876	{
4877	Log(("CreateTexture (%d,%d) levels=%d\n",
4878	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
4879	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
4880	AssertRCReturn(rc, rc);
4881	}
4882
4883	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
4884	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4885
4886	if (currentStage < 8)
4887	{
4888	/* Necessary for the fixed pipeline. */
4889	glEnable(pSurface->targetGL);
4890	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4891	}
4892
4893	/* Remember the currently active texture. */
4894	pCurrentTextureSurface = pSurface;
4895
4896	/* Recreate the texture state as glBindTexture resets them all (sigh). */
4897	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
4898	{
4899	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
4900	{
4901	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
4902
4903	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
4904	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
4905	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
4906	}
4907	}
4908	}
4909
4910	pContext->aSidActiveTextures[currentStage] = sid;
4911	}
4912
4913	/* Finished; continue with the next one. */
4914	continue;
4915	}
4916
4917	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
4918	textureType = GL_TEXTURE_WRAP_R; /* R = W */
4919	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4920	break;
4921
4922	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
4923	textureType = GL_TEXTURE_WRAP_S; /* S = U */
4924	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4925	break;
4926
4927	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
4928	textureType = GL_TEXTURE_WRAP_T; /* T = V */
4929	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4930	break;
4931
4932	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
4933	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
4934	{
4935	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
4936	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
4937
4938	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
4939	textureType = GL_TEXTURE_MIN_FILTER;
4940	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
4941	{
4942	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
4943	{
4944	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4945	val = GL_NEAREST_MIPMAP_LINEAR;
4946	else
4947	val = GL_NEAREST_MIPMAP_NEAREST;
4948	}
4949	else
4950	{
4951	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4952	val = GL_LINEAR_MIPMAP_LINEAR;
4953	else
4954	val = GL_LINEAR_MIPMAP_NEAREST;
4955	}
4956	}
4957	else
4958	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
4959	break;
4960	}
4961
4962	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
4963	textureType = GL_TEXTURE_MAG_FILTER;
4964	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
4965	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
4966	break;
4967
4968	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
4969	{
4970	GLfloat color[4]; /* red, green, blue, alpha */
4971	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
4972
4973	GLenum targetGL;
4974	if (pCurrentTextureSurface)
4975	targetGL = pCurrentTextureSurface->targetGL;
4976	else
4977	{
4978	/* No texture bound, assume 2D. */
4979	targetGL = GL_TEXTURE_2D;
4980	}
4981
4982	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
4983	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4984	break;
4985	}
4986
4987	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
4988	{
4989	GLenum targetGL;
4990	if (pCurrentTextureSurface)
4991	targetGL = pCurrentTextureSurface->targetGL;
4992	else
4993	{
4994	/* No texture bound, assume 2D. */
4995	targetGL = GL_TEXTURE_2D;
4996	}
4997
4998	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
4999	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5000	break;
5001	}
5002
5003	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5004	textureType = GL_TEXTURE_BASE_LEVEL;
5005	val = pTextureState[i].value;
5006	break;
5007
5008	#if 0
5009	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5010	samplerType = D3DSAMP_MAXANISOTROPY;
5011	val = pTextureState[i].value; /* Identical?? */
5012	break;
5013
5014	case SVGA3D_TS_GAMMA: /* float */
5015	samplerType = D3DSAMP_SRGBTEXTURE;
5016	/* Boolean in D3D */
5017	if (pTextureState[i].floatValue == 1.0f)
5018	val = FALSE;
5019	else
5020	val = TRUE;
5021	break;
5022	#endif
5023	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5024	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5025	AssertFailed();
5026	break;
5027
5028	default:
5029	//AssertFailed();
5030	break;
5031	}
5032
5033	if (textureType != ~(GLenum)0)
5034	{
5035	GLenum targetGL;
5036	if (pCurrentTextureSurface)
5037	targetGL = pCurrentTextureSurface->targetGL;
5038	else
5039	{
5040	/* No texture bound, assume 2D. */
5041	targetGL = GL_TEXTURE_2D;
5042	}
5043
5044	glTexParameteri(targetGL, textureType, val);
5045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5046	}
5047	}
5048
5049	return VINF_SUCCESS;
5050	}
5051
5052	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5053	{
5054	PVMSVGA3DCONTEXT pContext;
5055	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5056	AssertReturn(pState, VERR_NO_MEMORY);
5057	GLenum oglFace;
5058
5059	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5060
5061	if ( cid >= pState->cContexts
5062	\|\| pState->papContexts[cid]->id != cid)
5063	{
5064	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5065	return VERR_INVALID_PARAMETER;
5066	}
5067	pContext = pState->papContexts[cid];
5068	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5069
5070	switch (face)
5071	{
5072	case SVGA3D_FACE_NONE:
5073	case SVGA3D_FACE_FRONT:
5074	oglFace = GL_FRONT;
5075	break;
5076
5077	case SVGA3D_FACE_BACK:
5078	oglFace = GL_BACK;
5079	break;
5080
5081	case SVGA3D_FACE_FRONT_BACK:
5082	oglFace = GL_FRONT_AND_BACK;
5083	break;
5084
5085	default:
5086	AssertFailedReturn(VERR_INVALID_PARAMETER);
5087	}
5088
5089	/* Save for vm state save/restore. */
5090	pContext->state.aMaterial[face].fValid = true;
5091	pContext->state.aMaterial[face].material = *pMaterial;
5092	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5093
5094	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5095	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5096	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5097	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5098	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5100
5101	return VINF_SUCCESS;
5102	}
5103
5104	/** @todo Move into separate library as we are using logic from Wine here. */
5105	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5106	{
5107	PVMSVGA3DCONTEXT pContext;
5108	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5109	AssertReturn(pState, VERR_NO_MEMORY);
5110	float QuadAttenuation;
5111
5112	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5113
5114	if ( cid >= pState->cContexts
5115	\|\| pState->papContexts[cid]->id != cid)
5116	{
5117	Log(("vmsvga3dSetLightData invalid context id!\n"));
5118	return VERR_INVALID_PARAMETER;
5119	}
5120	pContext = pState->papContexts[cid];
5121	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5122
5123	/* Store for vm state save/restore */
5124	if (index < SVGA3D_MAX_LIGHTS)
5125	{
5126	pContext->state.aLightData[index].fValidData = true;
5127	pContext->state.aLightData[index].data = *pData;
5128	}
5129	else
5130	AssertFailed();
5131
5132	if ( pData->attenuation0 < 0.0f
5133	\|\| pData->attenuation1 < 0.0f
5134	\|\| pData->attenuation2 < 0.0f)
5135	{
5136	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5137	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5138	}
5139
5140	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5141	glMatrixMode(GL_MODELVIEW);
5142	glPushMatrix();
5143	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5144
5145	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5146	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5147	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5148
5149	if (pData->range * pData->range >= FLT_MIN)
5150	QuadAttenuation = 1.4f / (pData->range * pData->range);
5151	else
5152	QuadAttenuation = 0.0f;
5153
5154	switch (pData->type)
5155	{
5156	case SVGA3D_LIGHTTYPE_POINT:
5157	{
5158	GLfloat position[4];
5159
5160	position[0] = pData->position[0];
5161	position[1] = pData->position[1];
5162	position[2] = pData->position[2];
5163	position[3] = 1.0f;
5164
5165	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5166	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5167
5168	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5169	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5170
5171	/* Attenuation - Are these right? guessing... */
5172	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5173	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5174
5175	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5176	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5177
5178	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5179	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5180
5181	/** @todo range */
5182	break;
5183	}
5184
5185	case SVGA3D_LIGHTTYPE_SPOT1:
5186	{
5187	GLfloat exponent;
5188	GLfloat position[4];
5189	const GLfloat pi = 4.0f * atanf(1.0f);
5190
5191	position[0] = pData->position[0];
5192	position[1] = pData->position[1];
5193	position[2] = pData->position[2];
5194	position[3] = 1.0f;
5195
5196	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5197	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5198
5199	position[0] = pData->direction[0];
5200	position[1] = pData->direction[1];
5201	position[2] = pData->direction[2];
5202	position[3] = 1.0f;
5203
5204	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5205	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5206
5207	/*
5208	* opengl-ish and d3d-ish spot lights use too different models for the
5209	* light "intensity" as a function of the angle towards the main light direction,
5210	* so we only can approximate very roughly.
5211	* however spot lights are rather rarely used in games (if ever used at all).
5212	* furthermore if still used, probably nobody pays attention to such details.
5213	*/
5214	if (pData->falloff == 0)
5215	{
5216	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5217	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5218	* will always be 1.0 for both of them, and we don't have to care for the
5219	* rest of the rather complex calculation
5220	*/
5221	exponent = 0.0f;
5222	}
5223	else
5224	{
5225	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5226	if (rho < 0.0001f)
5227	rho = 0.0001f;
5228	exponent = -0.3f/log(cos(rho/2));
5229	}
5230	if (exponent > 128.0f)
5231	exponent = 128.0f;
5232
5233	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5234	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5235
5236	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5237	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5238
5239	/* Attenuation - Are these right? guessing... */
5240	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5241	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5242
5243	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5244	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5245
5246	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5247	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5248
5249	/** @todo range */
5250	break;
5251	}
5252
5253	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5254	{
5255	GLfloat position[4];
5256
5257	position[0] = -pData->direction[0];
5258	position[1] = -pData->direction[1];
5259	position[2] = -pData->direction[2];
5260	position[3] = 0.0f;
5261
5262	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5263	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5264
5265	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5266	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5267
5268	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5269	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5270	break;
5271	}
5272
5273	case SVGA3D_LIGHTTYPE_SPOT2:
5274	default:
5275	Log(("Unsupported light type!!\n"));
5276	return VERR_INVALID_PARAMETER;
5277	}
5278
5279	/* Restore the modelview matrix */
5280	glPopMatrix();
5281
5282	return VINF_SUCCESS;
5283	}
5284
5285	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5286	{
5287	PVMSVGA3DCONTEXT pContext;
5288	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5289	AssertReturn(pState, VERR_NO_MEMORY);
5290
5291	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5292
5293	if ( cid >= pState->cContexts
5294	\|\| pState->papContexts[cid]->id != cid)
5295	{
5296	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5297	return VERR_INVALID_PARAMETER;
5298	}
5299	pContext = pState->papContexts[cid];
5300	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5301
5302	/* Store for vm state save/restore */
5303	if (index < SVGA3D_MAX_LIGHTS)
5304	pContext->state.aLightData[index].fEnabled = !!enabled;
5305	else
5306	AssertFailed();
5307
5308	if (enabled)
5309	{
5310	/* Load the default settings if none have been set yet. */
5311	if (!pContext->state.aLightData[index].fValidData)
5312	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5313	glEnable(GL_LIGHT0 + index);
5314	}
5315	else
5316	glDisable(GL_LIGHT0 + index);
5317
5318	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5319	return VINF_SUCCESS;
5320	}
5321
5322	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5323	{
5324	PVMSVGA3DCONTEXT pContext;
5325	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5326	AssertReturn(pState, VERR_NO_MEMORY);
5327
5328	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5329
5330	if ( cid >= pState->cContexts
5331	\|\| pState->papContexts[cid]->id != cid)
5332	{
5333	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5334	return VERR_INVALID_PARAMETER;
5335	}
5336	pContext = pState->papContexts[cid];
5337	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5338
5339	/* Save for vm state save/restore. */
5340	pContext->state.RectViewPort = *pRect;
5341	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5342
5343	/** @todo y-inversion for partial viewport coordinates? */
5344	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5346
5347	/* Reset the projection matrix as that relies on the viewport setting. */
5348	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5349	{
5350	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5351	}
5352	else
5353	{
5354	float matrix[16];
5355
5356	/* identity matrix if no matrix set. */
5357	memset(matrix, 0, sizeof(matrix));
5358	matrix[0] = 1.0;
5359	matrix[5] = 1.0;
5360	matrix[10] = 1.0;
5361	matrix[15] = 1.0;
5362	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5363	}
5364
5365	return VINF_SUCCESS;
5366	}
5367
5368	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5369	{
5370	PVMSVGA3DCONTEXT pContext;
5371	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5372	AssertReturn(pState, VERR_NO_MEMORY);
5373	double oglPlane[4];
5374
5375	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)));
5376	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5377
5378	if ( cid >= pState->cContexts
5379	\|\| pState->papContexts[cid]->id != cid)
5380	{
5381	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5382	return VERR_INVALID_PARAMETER;
5383	}
5384	pContext = pState->papContexts[cid];
5385	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5386
5387	/* Store for vm state save/restore. */
5388	pContext->state.aClipPlane[index].fValid = true;
5389	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5390
5391	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5392	oglPlane[0] = (double)plane[0];
5393	oglPlane[1] = (double)plane[1];
5394	oglPlane[2] = (double)plane[2];
5395	oglPlane[3] = (double)plane[3];
5396
5397	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5398	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5399
5400	return VINF_SUCCESS;
5401	}
5402
5403	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5404	{
5405	PVMSVGA3DCONTEXT pContext;
5406	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5407	AssertReturn(pState, VERR_NO_MEMORY);
5408
5409	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5410
5411	if ( cid >= pState->cContexts
5412	\|\| pState->papContexts[cid]->id != cid)
5413	{
5414	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5415	return VERR_INVALID_PARAMETER;
5416	}
5417	pContext = pState->papContexts[cid];
5418	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5419
5420	/* Store for vm state save/restore. */
5421	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5422	pContext->state.RectScissor = *pRect;
5423
5424	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5425	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5426
5427	return VINF_SUCCESS;
5428	}
5429
5430	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5431	{
5432	/* Convert byte color components to float (0-1.0) */
5433	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5434	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5435	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5436	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5437	}
5438
5439	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5440	uint32_t cRects, SVGA3dRect *pRect)
5441	{
5442	GLbitfield mask = 0;
5443	PVMSVGA3DCONTEXT pContext;
5444	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5445	AssertReturn(pState, VERR_NO_MEMORY);
5446	GLboolean fDepthWriteEnabled = GL_FALSE;
5447
5448	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));
5449
5450	if ( cid >= pState->cContexts
5451	\|\| pState->papContexts[cid]->id != cid)
5452	{
5453	Log(("vmsvga3dCommandClear invalid context id!\n"));
5454	return VERR_INVALID_PARAMETER;
5455	}
5456	pContext = pState->papContexts[cid];
5457	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5458
5459	if (clearFlag & SVGA3D_CLEAR_COLOR)
5460	{
5461	GLfloat red, green, blue, alpha;
5462
5463	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5464
5465	/* Set the color clear value. */
5466	glClearColor(red, green, blue, alpha);
5467
5468	mask \|= GL_COLOR_BUFFER_BIT;
5469	}
5470	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5471	{
5472	/** @todo possibly the same problem as with glDepthMask */
5473	glClearStencil(stencil);
5474	mask \|= GL_STENCIL_BUFFER_BIT;
5475	}
5476	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5477	{
5478	glClearDepth((GLdouble)depth);
5479	mask \|= GL_DEPTH_BUFFER_BIT;
5480
5481	/* glClear will not clear the depth buffer if writing is disabled. */
5482	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5483	if (fDepthWriteEnabled == GL_FALSE)
5484	glDepthMask(GL_TRUE);
5485	}
5486
5487	if (cRects)
5488	{
5489	/* Save the current scissor test bit and scissor box. */
5490	glPushAttrib(GL_SCISSOR_BIT);
5491	glEnable(GL_SCISSOR_TEST);
5492	for (unsigned i=0; i < cRects; i++)
5493	{
5494	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));
5495	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5496	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5497	glClear(mask);
5498	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5499	}
5500	/* Restore the old scissor test bit and box */
5501	glPopAttrib();
5502	}
5503	else
5504	{
5505	glClear(mask);
5506	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5507	}
5508
5509	/* Restore depth write state. */
5510	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5511	&& fDepthWriteEnabled == GL_FALSE)
5512	glDepthMask(GL_FALSE);
5513
5514	return VINF_SUCCESS;
5515	}
5516
5517	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5518	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5519	{
5520	normalized = GL_FALSE;
5521	switch (identity.type)
5522	{
5523	case SVGA3D_DECLTYPE_FLOAT1:
5524	size = 1;
5525	type = GL_FLOAT;
5526	break;
5527	case SVGA3D_DECLTYPE_FLOAT2:
5528	size = 2;
5529	type = GL_FLOAT;
5530	break;
5531	case SVGA3D_DECLTYPE_FLOAT3:
5532	size = 3;
5533	type = GL_FLOAT;
5534	break;
5535	case SVGA3D_DECLTYPE_FLOAT4:
5536	size = 4;
5537	type = GL_FLOAT;
5538	break;
5539
5540	case SVGA3D_DECLTYPE_D3DCOLOR:
5541	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5542	type = GL_UNSIGNED_BYTE;
5543	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5544	break;
5545
5546	case SVGA3D_DECLTYPE_UBYTE4N:
5547	normalized = GL_TRUE;
5548	RT_FALL_THRU();
5549	case SVGA3D_DECLTYPE_UBYTE4:
5550	size = 4;
5551	type = GL_UNSIGNED_BYTE;
5552	break;
5553
5554	case SVGA3D_DECLTYPE_SHORT2N:
5555	normalized = GL_TRUE;
5556	RT_FALL_THRU();
5557	case SVGA3D_DECLTYPE_SHORT2:
5558	size = 2;
5559	type = GL_SHORT;
5560	break;
5561
5562	case SVGA3D_DECLTYPE_SHORT4N:
5563	normalized = GL_TRUE;
5564	RT_FALL_THRU();
5565	case SVGA3D_DECLTYPE_SHORT4:
5566	size = 4;
5567	type = GL_SHORT;
5568	break;
5569
5570	case SVGA3D_DECLTYPE_USHORT4N:
5571	normalized = GL_TRUE;
5572	size = 4;
5573	type = GL_UNSIGNED_SHORT;
5574	break;
5575
5576	case SVGA3D_DECLTYPE_USHORT2N:
5577	normalized = GL_TRUE;
5578	size = 2;
5579	type = GL_UNSIGNED_SHORT;
5580	break;
5581
5582	case SVGA3D_DECLTYPE_UDEC3:
5583	size = 3;
5584	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5585	break;
5586
5587	case SVGA3D_DECLTYPE_DEC3N:
5588	normalized = true;
5589	size = 3;
5590	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5591	break;
5592
5593	case SVGA3D_DECLTYPE_FLOAT16_2:
5594	size = 2;
5595	type = GL_HALF_FLOAT;
5596	break;
5597	case SVGA3D_DECLTYPE_FLOAT16_4:
5598	size = 4;
5599	type = GL_HALF_FLOAT;
5600	break;
5601	default:
5602	AssertFailedReturn(VERR_INVALID_PARAMETER);
5603	}
5604
5605	//pVertexElement->Method = identity.method;
5606	//pVertexElement->Usage = identity.usage;
5607
5608	return VINF_SUCCESS;
5609	}
5610
5611	/* Convert VMWare primitive type to its OpenGL equivalent. */
5612	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5613	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5614	{
5615	switch (PrimitiveType)
5616	{
5617	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5618	*pMode = GL_TRIANGLES;
5619	pcVertices = cPrimitiveCount 3;
5620	break;
5621	case SVGA3D_PRIMITIVE_POINTLIST:
5622	*pMode = GL_POINTS;
5623	*pcVertices = cPrimitiveCount;
5624	break;
5625	case SVGA3D_PRIMITIVE_LINELIST:
5626	*pMode = GL_LINES;
5627	pcVertices = cPrimitiveCount 2;
5628	break;
5629	case SVGA3D_PRIMITIVE_LINESTRIP:
5630	*pMode = GL_LINE_STRIP;
5631	*pcVertices = cPrimitiveCount + 1;
5632	break;
5633	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5634	*pMode = GL_TRIANGLE_STRIP;
5635	*pcVertices = cPrimitiveCount + 2;
5636	break;
5637	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5638	*pMode = GL_TRIANGLE_FAN;
5639	*pcVertices = cPrimitiveCount + 2;
5640	break;
5641	default:
5642	return VERR_INVALID_PARAMETER;
5643	}
5644	return VINF_SUCCESS;
5645	}
5646
5647	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5648	{
5649	int rc;
5650
5651	/* Reset the view matrix (also takes the world matrix into account). */
5652	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5653	{
5654	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5655	}
5656	else
5657	{
5658	float matrix[16];
5659
5660	/* identity matrix if no matrix set. */
5661	memset(matrix, 0, sizeof(matrix));
5662	matrix[0] = 1.0;
5663	matrix[5] = 1.0;
5664	matrix[10] = 1.0;
5665	matrix[15] = 1.0;
5666	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5667	}
5668
5669	/* Reset the projection matrix. */
5670	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5671	{
5672	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5673	}
5674	else
5675	{
5676	float matrix[16];
5677
5678	/* identity matrix if no matrix set. */
5679	memset(matrix, 0, sizeof(matrix));
5680	matrix[0] = 1.0;
5681	matrix[5] = 1.0;
5682	matrix[10] = 1.0;
5683	matrix[15] = 1.0;
5684	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5685	}
5686	AssertRC(rc);
5687	return rc;
5688	}
5689
5690	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5691	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5692	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5693	{
5694	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5695	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5696	PVMSVGA3DSURFACE pVertexSurface;
5697
5698	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5699	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5700
5701	pVertexSurface = pState->papSurfaces[sidVertex];
5702	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5703
5704	/* Create and/or bind the vertex buffer. */
5705	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5706	{
5707	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5708	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5709	pContext = &pState->SharedCtx;
5710	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5711
5712	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5713	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5714
5715	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5717
5718	Assert(pVertexSurface->fDirty);
5719	/** @todo rethink usage dynamic/static */
5720	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5721	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5722
5723	pVertexSurface->pMipmapLevels[0].fDirty = false;
5724	pVertexSurface->fDirty = false;
5725
5726	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5727
5728	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5729	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5730
5731	pContext = pSavedCtx;
5732	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5733	}
5734
5735	Assert(pVertexSurface->fDirty == false);
5736	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5737	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5738
5739	/* Setup the vertex declarations. */
5740	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5741	{
5742	GLint size;
5743	GLenum type;
5744	GLboolean normalized;
5745	GLuint index = iVertexDeclBase + iVertex;
5746
5747	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));
5748
5749	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5750	AssertRCReturn(rc, rc);
5751
5752	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5753	{
5754	/* Use numbered vertex arrays when shaders are active. */
5755	pState->ext.glEnableVertexAttribArray(index);
5756	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5757	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5758	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5759	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5760
5761	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5762	pState->ext.glVertexAttribDivisor(index, divisor);
5763	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5764
5765	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5766	}
5767	else
5768	{
5769	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5770	switch (pVertexDecl[iVertex].identity.usage)
5771	{
5772	case SVGA3D_DECLUSAGE_POSITIONT:
5773	case SVGA3D_DECLUSAGE_POSITION:
5774	{
5775	glEnableClientState(GL_VERTEX_ARRAY);
5776	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5777	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5778	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5779	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5780	break;
5781	}
5782	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5783	AssertFailed();
5784	break;
5785	case SVGA3D_DECLUSAGE_BLENDINDICES:
5786	AssertFailed();
5787	break;
5788	case SVGA3D_DECLUSAGE_NORMAL:
5789	glEnableClientState(GL_NORMAL_ARRAY);
5790	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5791	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5792	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5794	break;
5795	case SVGA3D_DECLUSAGE_PSIZE:
5796	AssertFailed();
5797	break;
5798	case SVGA3D_DECLUSAGE_TEXCOORD:
5799	/* Specify the affected texture unit. */
5800	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5801	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5802	#else
5803	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5804	#endif
5805	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5806	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5807	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5808	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5809	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5810	break;
5811	case SVGA3D_DECLUSAGE_TANGENT:
5812	AssertFailed();
5813	break;
5814	case SVGA3D_DECLUSAGE_BINORMAL:
5815	AssertFailed();
5816	break;
5817	case SVGA3D_DECLUSAGE_TESSFACTOR:
5818	AssertFailed();
5819	break;
5820	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5821	glEnableClientState(GL_COLOR_ARRAY);
5822	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5823	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5824	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5825	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5826	break;
5827	case SVGA3D_DECLUSAGE_FOG:
5828	glEnableClientState(GL_FOG_COORD_ARRAY);
5829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5830	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5831	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5832	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5833	break;
5834	case SVGA3D_DECLUSAGE_DEPTH:
5835	AssertFailed();
5836	break;
5837	case SVGA3D_DECLUSAGE_SAMPLE:
5838	AssertFailed();
5839	break;
5840	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5841	}
5842	}
5843
5844	#ifdef LOG_ENABLED
5845	if (pVertexDecl[iVertex].array.stride == 0)
5846	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5847	#endif
5848	}
5849
5850	return VINF_SUCCESS;
5851	}
5852
5853	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5854	{
5855	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5856
5857	/* Clean up the vertex declarations. */
5858	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5859	{
5860	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
5861	{
5862	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
5863	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
5864	vmsvga3dResetTransformMatrices(pThis, pContext);
5865	}
5866
5867	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5868	{
5869	/* Use numbered vertex arrays when shaders are active. */
5870	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5871	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5872	}
5873	else
5874	{
5875	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5876	switch (pVertexDecl[iVertex].identity.usage)
5877	{
5878	case SVGA3D_DECLUSAGE_POSITION:
5879	case SVGA3D_DECLUSAGE_POSITIONT:
5880	glDisableClientState(GL_VERTEX_ARRAY);
5881	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5882	break;
5883	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5884	break;
5885	case SVGA3D_DECLUSAGE_BLENDINDICES:
5886	break;
5887	case SVGA3D_DECLUSAGE_NORMAL:
5888	glDisableClientState(GL_NORMAL_ARRAY);
5889	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5890	break;
5891	case SVGA3D_DECLUSAGE_PSIZE:
5892	break;
5893	case SVGA3D_DECLUSAGE_TEXCOORD:
5894	/* Specify the affected texture unit. */
5895	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5896	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5897	#else
5898	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5899	#endif
5900	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5901	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5902	break;
5903	case SVGA3D_DECLUSAGE_TANGENT:
5904	break;
5905	case SVGA3D_DECLUSAGE_BINORMAL:
5906	break;
5907	case SVGA3D_DECLUSAGE_TESSFACTOR:
5908	break;
5909	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
5910	glDisableClientState(GL_COLOR_ARRAY);
5911	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5912	break;
5913	case SVGA3D_DECLUSAGE_FOG:
5914	glDisableClientState(GL_FOG_COORD_ARRAY);
5915	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5916	break;
5917	case SVGA3D_DECLUSAGE_DEPTH:
5918	break;
5919	case SVGA3D_DECLUSAGE_SAMPLE:
5920	break;
5921	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5922	}
5923	}
5924	}
5925	/* Unbind the vertex buffer after usage. */
5926	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
5927	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5928	return VINF_SUCCESS;
5929	}
5930
5931	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
5932	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
5933	SVGA3dVertexDivisor *pVertexDivisor)
5934	{
5935	RT_NOREF(pVertexDivisor);
5936	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5937	AssertReturn(pState, VERR_INTERNAL_ERROR);
5938	PVMSVGA3DCONTEXT pContext;
5939	int rc = VERR_NOT_IMPLEMENTED;
5940	uint32_t iCurrentVertex;
5941
5942	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
5943
5944	/* Caller already check these, but it cannot hurt to check again... */
5945	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
5946	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
5947	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
5948
5949	if (!cVertexDivisor)
5950	pVertexDivisor = NULL; /* Be sure. */
5951
5952	if ( cid >= pState->cContexts
5953	\|\| pState->papContexts[cid]->id != cid)
5954	{
5955	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
5956	return VERR_INVALID_PARAMETER;
5957	}
5958	pContext = pState->papContexts[cid];
5959	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5960
5961	/* Check for pretransformed vertex declarations. */
5962	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5963	{
5964	switch (pVertexDecl[iVertex].identity.usage)
5965	{
5966	case SVGA3D_DECLUSAGE_POSITIONT:
5967	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
5968	RT_FALL_THRU();
5969	case SVGA3D_DECLUSAGE_POSITION:
5970	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
5971	pContext->state.RectViewPort.h,
5972	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
5973	break;
5974	default: /* Shut up MSC. */ break;
5975	}
5976	}
5977
5978	/* Try to figure out if instancing is used.
5979	* Support simple instancing case with one set of indexed data and one set per-instance data.
5980	*/
5981	uint32_t cInstances = 0;
5982	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
5983	{
5984	if (pVertexDivisor[iVertexDivisor].s.indexedData)
5985	{
5986	if (cInstances == 0)
5987	cInstances = pVertexDivisor[iVertexDivisor].s.count;
5988	else
5989	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
5990	}
5991	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
5992	{
5993	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
5994	}
5995	}
5996
5997	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
5998	if (pContext->pShaderContext)
5999	{
6000	uint32_t rtHeight = 0;
6001
6002	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6003	{
6004	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6005	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6006	}
6007
6008	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6009	}
6010
6011	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6012	iCurrentVertex = 0;
6013	while (iCurrentVertex < numVertexDecls)
6014	{
6015	uint32_t sidVertex = SVGA_ID_INVALID;
6016	uint32_t iVertex;
6017
6018	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6019	{
6020	if ( sidVertex != SVGA_ID_INVALID
6021	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6022	)
6023	break;
6024	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6025	}
6026
6027	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6028	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6029	AssertRCReturn(rc, rc);
6030
6031	iCurrentVertex = iVertex;
6032	}
6033
6034	/* Now draw the primitives. */
6035	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6036	{
6037	GLenum modeDraw;
6038	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6039	PVMSVGA3DSURFACE pIndexSurface = NULL;
6040	unsigned cVertices;
6041
6042	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6043	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6044	if (RT_FAILURE(rc))
6045	{
6046	AssertRC(rc);
6047	goto internal_error;
6048	}
6049
6050	if (sidIndex != SVGA3D_INVALID_ID)
6051	{
6052	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6053
6054	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6055	\|\| sidIndex >= pState->cSurfaces
6056	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6057	{
6058	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6059	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6060	rc = VERR_INVALID_PARAMETER;
6061	goto internal_error;
6062	}
6063	pIndexSurface = pState->papSurfaces[sidIndex];
6064	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6065
6066	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6067	{
6068	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6069	pContext = &pState->SharedCtx;
6070	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6071
6072	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6073	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6074
6075	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6076	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6077
6078	Assert(pIndexSurface->fDirty);
6079
6080	/** @todo rethink usage dynamic/static */
6081	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6083
6084	pIndexSurface->pMipmapLevels[0].fDirty = false;
6085	pIndexSurface->fDirty = false;
6086
6087	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6088
6089	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6091
6092	pContext = pState->papContexts[cid];
6093	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6094	}
6095	Assert(pIndexSurface->fDirty == false);
6096
6097	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6098	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6099	}
6100
6101	if (!pIndexSurface)
6102	{
6103	/* Render without an index buffer */
6104	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6105	if (cInstances == 0)
6106	{
6107	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6108	}
6109	else
6110	{
6111	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6112	}
6113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6114	}
6115	else
6116	{
6117	GLenum indexType;
6118
6119	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6120	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6121
6122	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6123	{
6124	indexType = GL_UNSIGNED_BYTE;
6125	}
6126	else
6127	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6128	{
6129	indexType = GL_UNSIGNED_SHORT;
6130	}
6131	else
6132	{
6133	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6134	indexType = GL_UNSIGNED_INT;
6135	}
6136
6137	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));
6138	if (cInstances == 0)
6139	{
6140	/* Render with an index buffer */
6141	if (pRange[iPrimitive].indexBias == 0)
6142	glDrawElements(modeDraw,
6143	cVertices,
6144	indexType,
6145	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6146	else
6147	pState->ext.glDrawElementsBaseVertex(modeDraw,
6148	cVertices,
6149	indexType,
6150	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6151	pRange[iPrimitive].indexBias); /* basevertex */
6152	}
6153	else
6154	{
6155	/* Render with an index buffer */
6156	if (pRange[iPrimitive].indexBias == 0)
6157	pState->ext.glDrawElementsInstanced(modeDraw,
6158	cVertices,
6159	indexType,
6160	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6161	cInstances);
6162	else
6163	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6164	cVertices,
6165	indexType,
6166	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6167	cInstances,
6168	pRange[iPrimitive].indexBias); /* basevertex */
6169	}
6170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6171
6172	/* Unbind the index buffer after usage. */
6173	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6174	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6175	}
6176	}
6177
6178	internal_error:
6179
6180	/* Deactivate the vertex declarations. */
6181	iCurrentVertex = 0;
6182	while (iCurrentVertex < numVertexDecls)
6183	{
6184	uint32_t sidVertex = SVGA_ID_INVALID;
6185	uint32_t iVertex;
6186
6187	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6188	{
6189	if ( sidVertex != SVGA_ID_INVALID
6190	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6191	)
6192	break;
6193	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6194	}
6195
6196	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6197	AssertRCReturn(rc, rc);
6198
6199	iCurrentVertex = iVertex;
6200	}
6201	#ifdef DEBUG
6202	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6203	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6204	{
6205	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6206	{
6207	PVMSVGA3DSURFACE pTexture;
6208	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6209	AssertContinue(RT_SUCCESS(rc2));
6210
6211	GLint activeTextureUnit = 0;
6212	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6213	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6214
6215	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6216	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6217
6218	GLint activeTexture = 0;
6219	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6220	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6221
6222	pState->ext.glActiveTexture(activeTextureUnit);
6223	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6224
6225	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6226	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6227	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6228	}
6229	}
6230	#endif
6231
6232	#if 0
6233	/* Dump render target to a bitmap. */
6234	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6235	{
6236	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6237	PVMSVGA3DSURFACE pSurface;
6238	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6239	if (RT_SUCCESS(rc2))
6240	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6241	}
6242	#endif
6243
6244	return rc;
6245	}
6246
6247
6248	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6249	{
6250	PVMSVGA3DCONTEXT pContext;
6251	PVMSVGA3DSHADER pShader;
6252	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6253	AssertReturn(pState, VERR_NO_MEMORY);
6254	int rc;
6255
6256	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6257	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6258
6259	if ( cid >= pState->cContexts
6260	\|\| pState->papContexts[cid]->id != cid)
6261	{
6262	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6263	return VERR_INVALID_PARAMETER;
6264	}
6265	pContext = pState->papContexts[cid];
6266	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6267
6268	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6269	if (type == SVGA3D_SHADERTYPE_VS)
6270	{
6271	if (shid >= pContext->cVertexShaders)
6272	{
6273	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6274	AssertReturn(pvNew, VERR_NO_MEMORY);
6275	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6276	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6277	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6278	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6279	pContext->cVertexShaders = shid + 1;
6280	}
6281	/* If one already exists with this id, then destroy it now. */
6282	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6283	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6284
6285	pShader = &pContext->paVertexShader[shid];
6286	}
6287	else
6288	{
6289	Assert(type == SVGA3D_SHADERTYPE_PS);
6290	if (shid >= pContext->cPixelShaders)
6291	{
6292	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6293	AssertReturn(pvNew, VERR_NO_MEMORY);
6294	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6295	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6296	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6297	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6298	pContext->cPixelShaders = shid + 1;
6299	}
6300	/* If one already exists with this id, then destroy it now. */
6301	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6302	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6303
6304	pShader = &pContext->paPixelShader[shid];
6305	}
6306
6307	memset(pShader, 0, sizeof(*pShader));
6308	pShader->id = shid;
6309	pShader->cid = cid;
6310	pShader->type = type;
6311	pShader->cbData = cbData;
6312	pShader->pShaderProgram = RTMemAllocZ(cbData);
6313	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6314	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6315
6316	#ifdef DUMP_SHADER_DISASSEMBLY
6317	LPD3DXBUFFER pDisassembly;
6318	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6319	if (hr == D3D_OK)
6320	{
6321	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6322	pDisassembly->Release();
6323	}
6324	#endif
6325
6326	switch (type)
6327	{
6328	case SVGA3D_SHADERTYPE_VS:
6329	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6330	break;
6331
6332	case SVGA3D_SHADERTYPE_PS:
6333	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6334	break;
6335
6336	default:
6337	AssertFailedReturn(VERR_INVALID_PARAMETER);
6338	}
6339	if (rc != VINF_SUCCESS)
6340	{
6341	RTMemFree(pShader->pShaderProgram);
6342	memset(pShader, 0, sizeof(*pShader));
6343	pShader->id = SVGA3D_INVALID_ID;
6344	}
6345
6346	return rc;
6347	}
6348
6349	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6350	{
6351	PVMSVGA3DCONTEXT pContext;
6352	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6353	AssertReturn(pState, VERR_NO_MEMORY);
6354	PVMSVGA3DSHADER pShader = NULL;
6355	int rc;
6356
6357	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6358
6359	if ( cid >= pState->cContexts
6360	\|\| pState->papContexts[cid]->id != cid)
6361	{
6362	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6363	return VERR_INVALID_PARAMETER;
6364	}
6365	pContext = pState->papContexts[cid];
6366	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6367
6368	if (type == SVGA3D_SHADERTYPE_VS)
6369	{
6370	if ( shid < pContext->cVertexShaders
6371	&& pContext->paVertexShader[shid].id == shid)
6372	{
6373	pShader = &pContext->paVertexShader[shid];
6374	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6375	AssertRC(rc);
6376	}
6377	}
6378	else
6379	{
6380	Assert(type == SVGA3D_SHADERTYPE_PS);
6381	if ( shid < pContext->cPixelShaders
6382	&& pContext->paPixelShader[shid].id == shid)
6383	{
6384	pShader = &pContext->paPixelShader[shid];
6385	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6386	AssertRC(rc);
6387	}
6388	}
6389
6390	if (pShader)
6391	{
6392	if (pShader->pShaderProgram)
6393	RTMemFree(pShader->pShaderProgram);
6394	memset(pShader, 0, sizeof(*pShader));
6395	pShader->id = SVGA3D_INVALID_ID;
6396	}
6397	else
6398	AssertFailedReturn(VERR_INVALID_PARAMETER);
6399
6400	return VINF_SUCCESS;
6401	}
6402
6403	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6404	{
6405	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6406	AssertReturn(pState, VERR_NO_MEMORY);
6407	int rc;
6408
6409	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6410
6411	if ( !pContext
6412	&& cid < pState->cContexts
6413	&& pState->papContexts[cid]->id == cid)
6414	pContext = pState->papContexts[cid];
6415	else if (!pContext)
6416	{
6417	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6418	Log(("vmsvga3dShaderSet invalid context id!\n"));
6419	return VERR_INVALID_PARAMETER;
6420	}
6421	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6422
6423	if (type == SVGA3D_SHADERTYPE_VS)
6424	{
6425	/* Save for vm state save/restore. */
6426	pContext->state.shidVertex = shid;
6427	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6428
6429	if ( shid < pContext->cVertexShaders
6430	&& pContext->paVertexShader[shid].id == shid)
6431	{
6432	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6433	Assert(type == pShader->type);
6434
6435	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6436	AssertRCReturn(rc, rc);
6437	}
6438	else
6439	if (shid == SVGA_ID_INVALID)
6440	{
6441	/* Unselect shader. */
6442	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6443	AssertRCReturn(rc, rc);
6444	}
6445	else
6446	AssertFailedReturn(VERR_INVALID_PARAMETER);
6447	}
6448	else
6449	{
6450	/* Save for vm state save/restore. */
6451	pContext->state.shidPixel = shid;
6452	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6453
6454	Assert(type == SVGA3D_SHADERTYPE_PS);
6455	if ( shid < pContext->cPixelShaders
6456	&& pContext->paPixelShader[shid].id == shid)
6457	{
6458	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6459	Assert(type == pShader->type);
6460
6461	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6462	AssertRCReturn(rc, rc);
6463	}
6464	else
6465	if (shid == SVGA_ID_INVALID)
6466	{
6467	/* Unselect shader. */
6468	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6469	AssertRCReturn(rc, rc);
6470	}
6471	else
6472	AssertFailedReturn(VERR_INVALID_PARAMETER);
6473	}
6474
6475	return VINF_SUCCESS;
6476	}
6477
6478	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6479	{
6480	PVMSVGA3DCONTEXT pContext;
6481	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6482	AssertReturn(pState, VERR_NO_MEMORY);
6483	int rc;
6484
6485	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6486
6487	if ( cid >= pState->cContexts
6488	\|\| pState->papContexts[cid]->id != cid)
6489	{
6490	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6491	return VERR_INVALID_PARAMETER;
6492	}
6493	pContext = pState->papContexts[cid];
6494	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6495
6496	for (uint32_t i = 0; i < cRegisters; i++)
6497	{
6498	#ifdef LOG_ENABLED
6499	switch (ctype)
6500	{
6501	case SVGA3D_CONST_TYPE_FLOAT:
6502	{
6503	float pValuesF = (float )pValues;
6504	Log(("ConstantF %d: value=%d, %d, %d, %d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0f), (int)(pValuesF[i4 + 1] 100.0f), (int)(pValuesF[i4 + 2] 100.0f), (int)(pValuesF[i4 + 3] 100.0f)));
6505	break;
6506	}
6507
6508	case SVGA3D_CONST_TYPE_INT:
6509	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6510	break;
6511
6512	case SVGA3D_CONST_TYPE_BOOL:
6513	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6514	break;
6515	}
6516	#endif
6517	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6518	}
6519
6520	switch (type)
6521	{
6522	case SVGA3D_SHADERTYPE_VS:
6523	switch (ctype)
6524	{
6525	case SVGA3D_CONST_TYPE_FLOAT:
6526	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6527	break;
6528
6529	case SVGA3D_CONST_TYPE_INT:
6530	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6531	break;
6532
6533	case SVGA3D_CONST_TYPE_BOOL:
6534	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6535	break;
6536
6537	default:
6538	AssertFailedReturn(VERR_INVALID_PARAMETER);
6539	}
6540	AssertRCReturn(rc, rc);
6541	break;
6542
6543	case SVGA3D_SHADERTYPE_PS:
6544	switch (ctype)
6545	{
6546	case SVGA3D_CONST_TYPE_FLOAT:
6547	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6548	break;
6549
6550	case SVGA3D_CONST_TYPE_INT:
6551	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6552	break;
6553
6554	case SVGA3D_CONST_TYPE_BOOL:
6555	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6556	break;
6557
6558	default:
6559	AssertFailedReturn(VERR_INVALID_PARAMETER);
6560	}
6561	AssertRCReturn(rc, rc);
6562	break;
6563
6564	default:
6565	AssertFailedReturn(VERR_INVALID_PARAMETER);
6566	}
6567
6568	return VINF_SUCCESS;
6569	}
6570
6571	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6572	{
6573	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6574	GLuint idQuery = 0;
6575	pState->ext.glGenQueries(1, &idQuery);
6576	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6577	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6578	pContext->occlusion.idQuery = idQuery;
6579	return VINF_SUCCESS;
6580	}
6581
6582	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6583	{
6584	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6585	if (pContext->occlusion.idQuery)
6586	{
6587	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6588	}
6589	return VINF_SUCCESS;
6590	}
6591
6592	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6593	{
6594	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6595	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6596	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6597	return VINF_SUCCESS;
6598	}
6599
6600	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6601	{
6602	RT_NOREF(pContext);
6603	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6604	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6605	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6606	return VINF_SUCCESS;
6607	}
6608
6609	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6610	{
6611	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6612	GLuint pixels = 0;
6613	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6614	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6615
6616	*pu32Pixels = (uint32_t)pixels;
6617	return VINF_SUCCESS;
6618	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 76196

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