DevVGA-SVGA3d-ogl.cpp@ 82109

Last change on this file since 82109 was 82109, checked in by vboxsync, 5 years ago
DevVGA: Splitting up the VGASTATE structure. bugref:9218
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 82109 2019-11-22 20:24:21Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2019 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35	#include <VBox/AssertGuest.h>
36
37	#include <iprt/assert.h>
38	#include <iprt/semaphore.h>
39	#include <iprt/uuid.h>
40	#include <iprt/mem.h>
41
42	#include <VBoxVideo.h> /* required by DevVGA.h */
43
44	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
45	#include "DevVGA.h"
46
47	#include "DevVGA-SVGA.h"
48	#include "DevVGA-SVGA3d.h"
49	#include "DevVGA-SVGA3d-internal.h"
50
51	#ifdef DUMP_SHADER_DISASSEMBLY
52	# include <d3dx9shader.h>
53	#endif
54
55	#include <stdlib.h>
56	#include <math.h>
57	#include <float.h> /* FLT_MIN */
58
59
60	/*********************************************************************************************************************************
61	* Defined Constants And Macros *
62	*********************************************************************************************************************************/
63	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
64	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
65	#endif
66
67	#ifdef VMSVGA3D_DYNAMIC_LOAD
68	# define OGLGETPROCADDRESS glLdrGetProcAddress
69	#else
70	#ifdef RT_OS_WINDOWS
71	# define OGLGETPROCADDRESS MyWinGetProcAddress
72	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
73	{
74	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
75	PROC p = wglGetProcAddress(pszSymbol);
76	if (RT_VALID_PTR(p))
77	return p;
78	return 0;
79	}
80	#elif defined(RT_OS_DARWIN)
81	# include <dlfcn.h>
82	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
83	/** Resolves an OpenGL symbol. */
84	static void MyNSGLGetProcAddress(const char pszSymbol)
85	{
86	/* Another copy in shaderapi.c. */
87	static void *s_pvImage = NULL;
88	if (s_pvImage == NULL)
89	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
90	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
91	}
92
93	#else
94	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
95	#endif
96	#endif
97
98	/* Invert y-coordinate for OpenGL's bottom left origin. */
99	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->paMipmapLevels[0].mipmapSize.height - (y_coordinate))
100	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
101
102	/**
103	* Macro for doing something and then checking for errors during initialization.
104	* Uses AssertLogRelMsg.
105	*/
106	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
107	do \
108	{ \
109	a_Expr; \
110	GLenum iGlError = glGetError(); \
111	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
112	} while (0)
113
114	/**
115	* Macro for doing something and then checking for errors during initialization,
116	* doing the same in the other context when enabled.
117	*
118	* This will try both profiles in dual profile builds. Caller must be in the
119	* default context.
120	*
121	* Uses AssertLogRelMsg to indicate trouble.
122	*/
123	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
124	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
125	do \
126	{ \
127	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
128	a_Expr; \
129	GLenum iGlError = glGetError(); \
130	if (iGlError != GL_NO_ERROR) \
131	{ \
132	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
133	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
134	a_Expr; \
135	GLenum iGlError2 = glGetError(); \
136	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
137	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
138	} \
139	} while (0)
140	#else
141	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
142	#endif
143
144
145	/*********************************************************************************************************************************
146	* Global Variables *
147	*********************************************************************************************************************************/
148	/* Define the default light parameters as specified by MSDN. */
149	/** @todo move out; fetched from Wine */
150	const SVGA3dLightData vmsvga3d_default_light =
151	{
152	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
153	false, /* inWorldSpace */
154	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
156	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
157	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
158	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
159	0.0f, /* range */
160	0.0f, /* falloff */
161	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
162	0.0f, /* theta */
163	0.0f /* phi */
164	};
165
166
167	/*********************************************************************************************************************************
168	* Internal Functions *
169	*********************************************************************************************************************************/
170	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
171	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
172
173	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
174	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
175
176
177	/**
178	* Checks if the given OpenGL extension is supported.
179	*
180	* @returns true if supported, false if not.
181	* @param pState The VMSVGA3d state.
182	* @param rsMinGLVersion The OpenGL version that introduced this feature
183	* into the core.
184	* @param pszWantedExtension The name of the OpenGL extension we want padded
185	* with one space at each end.
186	* @remarks Init time only.
187	*/
188	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
189	{
190	RT_NOREF(rsMinGLVersion);
191	/* check padding. */
192	Assert(pszWantedExtension[0] == ' ');
193	Assert(pszWantedExtension[1] != ' ');
194	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
195
196	/* Look it up. */
197	bool fRet = false;
198	if (strstr(pState->pszExtensions, pszWantedExtension))
199	fRet = true;
200
201	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
202	#ifdef RT_OS_DARWIN
203	AssertMsg( rsMinGLVersion == 0.0
204	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
205	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
206	("%s actual:%d min:%d fRet=%d\n",
207	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
208	#else
209	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
210	("%s actual:%d min:%d fRet=%d\n",
211	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
212	#endif
213	return fRet;
214	}
215
216
217	/**
218	* Outputs GL_EXTENSIONS list to the release log.
219	*/
220	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
221	{
222	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
223	bool fBuffered = RTLogRelSetBuffering(true);
224
225	/*
226	* Determin the column widths first.
227	*/
228	size_t acchWidths[4] = { 1, 1, 1, 1 };
229	uint32_t i;
230	const char *psz = pszExtensions;
231	for (i = 0; ; i++)
232	{
233	while (*psz == ' ')
234	psz++;
235	if (!*psz)
236	break;
237
238	const char *pszEnd = strchr(psz, ' ');
239	AssertBreak(pszEnd);
240	size_t cch = pszEnd - psz;
241
242	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
243	if (acchWidths[iColumn] < cch)
244	acchWidths[iColumn] = cch;
245
246	psz = pszEnd;
247	}
248
249	/*
250	* Output it.
251	*/
252	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
253	psz = pszExtensions;
254	for (i = 0; ; i++)
255	{
256	while (*psz == ' ')
257	psz++;
258	if (!*psz)
259	break;
260
261	const char *pszEnd = strchr(psz, ' ');
262	AssertBreak(pszEnd);
263	size_t cch = pszEnd - psz;
264
265	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
266	if (iColumn == 0)
267	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
268	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
269	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
270	else
271	LogRel((" %.*s", cch, psz));
272
273	psz = pszEnd;
274	}
275
276	RTLogRelSetBuffering(fBuffered);
277	LogRel(("\n"));
278	}
279
280	/**
281	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
282	* @a ppszExtensions.
283	*
284	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
285	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
286	* @param fGLProfileVersion The OpenGL profile version.
287	*/
288	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
289	{
290	int rc;
291	*ppszExtensions = NULL;
292
293	/*
294	* Try the old glGetString interface first.
295	*/
296	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
297	if (pszExtensions)
298	{
299	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
300	AssertLogRelRCReturn(rc, rc);
301	}
302	else
303	{
304	/*
305	* The new interface where each extension string is retrieved separately.
306	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
307	* the above GL_EXTENSIONS error lingers on darwin. sucks.
308	*/
309	#ifndef GL_NUM_EXTENSIONS
310	# define GL_NUM_EXTENSIONS 0x821D
311	#endif
312	GLint cExtensions = 1024;
313	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
314	Assert(cExtensions != 1024);
315
316	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
317	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
318
319	rc = RTStrAAppend(ppszExtensions, " ");
320	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
321	{
322	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
323	if (pszExt)
324	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
325	}
326	AssertRCReturn(rc, rc);
327	}
328
329	#if 1
330	/*
331	* Add extensions promoted into the core OpenGL profile.
332	*/
333	static const struct
334	{
335	float fGLVersion;
336	const char *pszzExtensions;
337	} s_aPromotedExtensions[] =
338	{
339	{
340	1.1f,
341	" GL_EXT_vertex_array \0"
342	" GL_EXT_polygon_offset \0"
343	" GL_EXT_blend_logic_op \0"
344	" GL_EXT_texture \0"
345	" GL_EXT_copy_texture \0"
346	" GL_EXT_subtexture \0"
347	" GL_EXT_texture_object \0"
348	" GL_ARB_framebuffer_object \0"
349	" GL_ARB_map_buffer_range \0"
350	" GL_ARB_vertex_array_object \0"
351	"\0"
352	},
353	{
354	1.2f,
355	" EXT_texture3D \0"
356	" EXT_bgra \0"
357	" EXT_packed_pixels \0"
358	" EXT_rescale_normal \0"
359	" EXT_separate_specular_color \0"
360	" SGIS_texture_edge_clamp \0"
361	" SGIS_texture_lod \0"
362	" EXT_draw_range_elements \0"
363	"\0"
364	},
365	{
366	1.3f,
367	" GL_ARB_texture_compression \0"
368	" GL_ARB_texture_cube_map \0"
369	" GL_ARB_multisample \0"
370	" GL_ARB_multitexture \0"
371	" GL_ARB_texture_env_add \0"
372	" GL_ARB_texture_env_combine \0"
373	" GL_ARB_texture_env_dot3 \0"
374	" GL_ARB_texture_border_clamp \0"
375	" GL_ARB_transpose_matrix \0"
376	"\0"
377	},
378	{
379	1.5f,
380	" GL_SGIS_generate_mipmap \0"
381	/" GL_NV_blend_equare \0"/
382	" GL_ARB_depth_texture \0"
383	" GL_ARB_shadow \0"
384	" GL_EXT_fog_coord \0"
385	" GL_EXT_multi_draw_arrays \0"
386	" GL_ARB_point_parameters \0"
387	" GL_EXT_secondary_color \0"
388	" GL_EXT_blend_func_separate \0"
389	" GL_EXT_stencil_wrap \0"
390	" GL_ARB_texture_env_crossbar \0"
391	" GL_EXT_texture_lod_bias \0"
392	" GL_ARB_texture_mirrored_repeat \0"
393	" GL_ARB_window_pos \0"
394	"\0"
395	},
396	{
397	1.6f,
398	" GL_ARB_vertex_buffer_object \0"
399	" GL_ARB_occlusion_query \0"
400	" GL_EXT_shadow_funcs \0"
401	},
402	{
403	2.0f,
404	" GL_ARB_shader_objects \0" /??/
405	" GL_ARB_vertex_shader \0" /??/
406	" GL_ARB_fragment_shader \0" /??/
407	" GL_ARB_shading_language_100 \0" /??/
408	" GL_ARB_draw_buffers \0"
409	" GL_ARB_texture_non_power_of_two \0"
410	" GL_ARB_point_sprite \0"
411	" GL_ATI_separate_stencil \0"
412	" GL_EXT_stencil_two_side \0"
413	"\0"
414	},
415	{
416	2.1f,
417	" GL_ARB_pixel_buffer_object \0"
418	" GL_EXT_texture_sRGB \0"
419	"\0"
420	},
421	{
422	3.0f,
423	" GL_ARB_framebuffer_object \0"
424	" GL_ARB_map_buffer_range \0"
425	" GL_ARB_vertex_array_object \0"
426	"\0"
427	},
428	{
429	3.1f,
430	" GL_ARB_copy_buffer \0"
431	" GL_ARB_uniform_buffer_object \0"
432	"\0"
433	},
434	{
435	3.2f,
436	" GL_ARB_vertex_array_bgra \0"
437	" GL_ARB_draw_elements_base_vertex \0"
438	" GL_ARB_fragment_coord_conventions \0"
439	" GL_ARB_provoking_vertex \0"
440	" GL_ARB_seamless_cube_map \0"
441	" GL_ARB_texture_multisample \0"
442	" GL_ARB_depth_clamp \0"
443	" GL_ARB_sync \0"
444	" GL_ARB_geometry_shader4 \0" /??/
445	"\0"
446	},
447	{
448	3.3f,
449	" GL_ARB_blend_func_extended \0"
450	" GL_ARB_sampler_objects \0"
451	" GL_ARB_explicit_attrib_location \0"
452	" GL_ARB_occlusion_query2 \0"
453	" GL_ARB_shader_bit_encoding \0"
454	" GL_ARB_texture_rgb10_a2ui \0"
455	" GL_ARB_texture_swizzle \0"
456	" GL_ARB_timer_query \0"
457	" GL_ARB_vertex_type_2_10_10_10_rev \0"
458	"\0"
459	},
460	{
461	4.0f,
462	" GL_ARB_texture_query_lod \0"
463	" GL_ARB_draw_indirect \0"
464	" GL_ARB_gpu_shader5 \0"
465	" GL_ARB_gpu_shader_fp64 \0"
466	" GL_ARB_shader_subroutine \0"
467	" GL_ARB_tessellation_shader \0"
468	" GL_ARB_texture_buffer_object_rgb32 \0"
469	" GL_ARB_texture_cube_map_array \0"
470	" GL_ARB_texture_gather \0"
471	" GL_ARB_transform_feedback2 \0"
472	" GL_ARB_transform_feedback3 \0"
473	"\0"
474	},
475	{
476	4.1f,
477	" GL_ARB_ES2_compatibility \0"
478	" GL_ARB_get_program_binary \0"
479	" GL_ARB_separate_shader_objects \0"
480	" GL_ARB_shader_precision \0"
481	" GL_ARB_vertex_attrib_64bit \0"
482	" GL_ARB_viewport_array \0"
483	"\0"
484	}
485	};
486
487	uint32_t cPromoted = 0;
488	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
489	{
490	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
491	while (*pszExt)
492	{
493	# ifdef VBOX_STRICT
494	size_t cchExt = strlen(pszExt);
495	Assert(cchExt > 3);
496	Assert(pszExt[0] == ' ');
497	Assert(pszExt[1] != ' ');
498	Assert(pszExt[cchExt - 2] != ' ');
499	Assert(pszExt[cchExt - 1] == ' ');
500	# endif
501
502	if (strstr(*ppszExtensions, pszExt) == NULL)
503	{
504	if (cPromoted++ == 0)
505	{
506	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
507	AssertRCReturn(rc, rc);
508	}
509
510	rc = RTStrAAppend(ppszExtensions, pszExt);
511	AssertRCReturn(rc, rc);
512	}
513
514	pszExt = strchr(pszExt, '\0') + 1;
515	}
516	}
517	#endif
518
519	return VINF_SUCCESS;
520	}
521
522	/** Check whether this is an Intel GL driver.
523	*
524	* @returns true if this seems to be some Intel graphics.
525	*/
526	static bool vmsvga3dIsVendorIntel(void)
527	{
528	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
529	}
530
531	/**
532	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
533	*/
534	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
535	{
536	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
537	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
538	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
539	#else
540	NOREF(pThis);
541	NOREF(fOtherProfile);
542	#endif
543	}
544
545
546	/**
547	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
548	*/
549	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
550	char *pszBuf, size_t cbBuf, bool fOtherProfile)
551	{
552	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
553	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
554	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
555	while (*pszCur == ' ')
556	pszCur++;
557	if (!*pszCur)
558	return false;
559
560	const char *pszEnd = strchr(pszCur, ' ');
561	AssertReturn(pszEnd, false);
562	size_t cch = pszEnd - pszCur;
563	if (cch < cbBuf)
564	{
565	memcpy(pszBuf, pszCur, cch);
566	pszBuf[cch] = '\0';
567	}
568	else if (cbBuf > 0)
569	{
570	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
571	pszBuf[cbBuf - 1] = '\0';
572	}
573
574	ppvEnumCtx = (void )pszEnd;
575	return true;
576	}
577
578
579	/**
580	* Initializes the VMSVGA3D state during VGA device construction.
581	*
582	* Failure are generally not fatal, 3D support will just be disabled.
583	*
584	* @returns VBox status code.
585	* @param pDevIns The device instance.
586	* @param pThis The shared VGA/VMSVGA state where svga.p3dState will be
587	* modified.
588	* @param pThisCC The VGA/VMSVGA state for ring-3.
589	*/
590	int vmsvga3dInit(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
591	{
592	int rc;
593	RT_NOREF(pThisCC);
594
595	AssertCompile(GL_TRUE == 1);
596	AssertCompile(GL_FALSE == 0);
597
598	#ifdef VMSVGA3D_DYNAMIC_LOAD
599	rc = glLdrInit(pDevIns);
600	if (RT_FAILURE(rc))
601	{
602	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
603	return rc;
604	}
605	#endif
606
607	/*
608	* Load and resolve imports from the external shared libraries.
609	*/
610	RTERRINFOSTATIC ErrInfo;
611	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
612	if (RT_FAILURE(rc))
613	{
614	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
615	return rc;
616	}
617	#ifdef RT_OS_DARWIN
618	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
619	if (RT_FAILURE(rc))
620	{
621	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
622	return rc;
623	}
624	#endif
625
626	/*
627	* Allocate the state.
628	*/
629	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
630	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
631
632	#ifdef RT_OS_WINDOWS
633	/* Create event semaphore and async IO thread. */
634	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
635	rc = RTSemEventCreate(&pState->WndRequestSem);
636	if (RT_SUCCESS(rc))
637	{
638	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
639	"VMSVGA3DWND");
640	if (RT_SUCCESS(rc))
641	return VINF_SUCCESS;
642
643	/* bail out. */
644	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
645	RTSemEventDestroy(pState->WndRequestSem);
646	}
647	else
648	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
649	RTMemFree(pThis->svga.p3dState);
650	pThis->svga.p3dState = NULL;
651	return rc;
652	#else
653	return VINF_SUCCESS;
654	#endif
655	}
656
657	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
658	{
659	/* A strict approach to get a proc address as recommended by Khronos:
660	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
661	* - "If the function is an extension, we need to check to see if the extension is supported."
662	*/
663
664	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
665	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
666	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
667	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
668	} while(0)
669
670	/* Get an optional function address. LogRel on failure. */
671	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
672	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
673	if (!pState->ext.ProcName) \
674	{ \
675	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
676	AssertFailed(); \
677	} \
678	} while(0)
679
680	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
681	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
682	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
683	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
684	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
685	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
686	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
687	GLGETPROC_(PFNGLTEXSUBIMAGE3DPROC , glTexSubImage3D, "");
688	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
689	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
690	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
691	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC , glCompressedTexSubImage3D, "");
692	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
693	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
694	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
695	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
696	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
697	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
698	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
699	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
700	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
701	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
702	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
703	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
704	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
705	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
706	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
707	/* glGetProgramivARB determines implementation limits for the program
708	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
709	* It differs from glGetProgramiv, which returns a parameter from a program object.
710	*/
711	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
712	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
713	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
714	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
715	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
716	#endif
717	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
718	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
719	#endif
720	GLGETPROC_(PFNGLDRAWBUFFERSPROC , glDrawBuffers, "");
721	GLGETPROC_(PFNGLCREATESHADERPROC , glCreateShader, "");
722	GLGETPROC_(PFNGLSHADERSOURCEPROC , glShaderSource, "");
723	GLGETPROC_(PFNGLCOMPILESHADERPROC , glCompileShader, "");
724	GLGETPROC_(PFNGLGETSHADERIVPROC , glGetShaderiv, "");
725	GLGETPROC_(PFNGLGETSHADERINFOLOGPROC , glGetShaderInfoLog, "");
726	GLGETPROC_(PFNGLCREATEPROGRAMPROC , glCreateProgram, "");
727	GLGETPROC_(PFNGLATTACHSHADERPROC , glAttachShader, "");
728	GLGETPROC_(PFNGLLINKPROGRAMPROC , glLinkProgram, "");
729	GLGETPROC_(PFNGLGETPROGRAMIVPROC , glGetProgramiv, "");
730	GLGETPROC_(PFNGLGETPROGRAMINFOLOGPROC , glGetProgramInfoLog, "");
731	GLGETPROC_(PFNGLUSEPROGRAMPROC , glUseProgram, "");
732	GLGETPROC_(PFNGLGETUNIFORMLOCATIONPROC , glGetUniformLocation, "");
733	GLGETPROC_(PFNGLUNIFORM1IPROC , glUniform1i, "");
734	GLGETPROC_(PFNGLUNIFORM4FVPROC , glUniform4fv, "");
735	GLGETPROC_(PFNGLDETACHSHADERPROC , glDetachShader, "");
736	GLGETPROC_(PFNGLDELETESHADERPROC , glDeleteShader, "");
737	GLGETPROC_(PFNGLDELETEPROGRAMPROC , glDeleteProgram, "");
738
739	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
740	if ( pState->rsGLVersion >= 3.0f
741	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
742	{
743	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
744	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
745	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
746	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
747	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
748	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
749	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
750	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
751	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
752	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
753	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
754	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
755	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
756	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
757	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
758	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
759	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
760	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
761	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
762	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
763	}
764
765	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
766	if (pState->rsGLVersion >= 3.1f)
767	{
768	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
769	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
770	}
771	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
772	{
773	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
774	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
775	}
776	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
777	{
778	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
779	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
780	}
781
782	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
783	if ( pState->rsGLVersion >= 3.2f
784	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
785	{
786	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
787	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
788	}
789
790	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
791	if ( pState->rsGLVersion >= 3.2f
792	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
793	{
794	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
795	}
796
797	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
798	if (pState->rsGLVersion >= 3.3f)
799	{
800	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
801	}
802	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
803	{
804	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
805	}
806
807	#undef GLGETPROCOPT_
808	#undef GLGETPROC_
809
810	return VINF_SUCCESS;
811	}
812
813
814	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
815	int vmsvga3dPowerOn(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
816	{
817	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
818	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
819	PVMSVGA3DCONTEXT pContext;
820	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
821	PVMSVGA3DCONTEXT pOtherCtx;
822	#endif
823	int rc;
824	RT_NOREF(pDevIns, pThisCC);
825
826	if (pState->rsGLVersion != 0.0)
827	return VINF_SUCCESS; /* already initialized (load state) */
828
829	/*
830	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
831	*/
832	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
833	AssertRCReturn(rc, rc);
834
835	pContext = pState->papContexts[1];
836	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
837
838	#ifdef VMSVGA3D_DYNAMIC_LOAD
839	/* Context is set and it is possible now to resolve extension functions. */
840	rc = glLdrGetExtFunctions(pDevIns);
841	if (RT_FAILURE(rc))
842	{
843	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
844	return rc;
845	}
846	#endif
847
848	LogRel(("VMSVGA3d: OpenGL version: %s\n"
849	"VMSVGA3d: OpenGL Vendor: %s\n"
850	"VMSVGA3d: OpenGL Renderer: %s\n"
851	"VMSVGA3d: OpenGL shader language version: %s\n",
852	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
853	glGetString(GL_SHADING_LANGUAGE_VERSION)));
854
855	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
856	AssertRCReturn(rc, rc);
857	vmsvga3dLogRelExtensions("", pState->pszExtensions);
858
859	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
860
861
862	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
863	/*
864	* Get the extension list for the alternative profile so we can better
865	* figure out the shader model and stuff.
866	*/
867	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
868	AssertLogRelRCReturn(rc, rc);
869	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
870
871	pOtherCtx = pState->papContexts[2];
872	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
873
874	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
875	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
876	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
877	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
878	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
879	glGetString(GL_SHADING_LANGUAGE_VERSION)));
880
881	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
882	AssertRCReturn(rc, rc);
883	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
884
885	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
886
887	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
888	#else
889	pState->pszOtherExtensions = (char *)"";
890	pState->rsOtherGLVersion = pState->rsGLVersion;
891	#endif
892
893	/*
894	* Resolve GL function pointers and store them in pState->ext.
895	*/
896	rc = vmsvga3dLoadGLFunctions(pState);
897	if (RT_FAILURE(rc))
898	{
899	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
900	return rc;
901	}
902
903	/*
904	* Initialize the capabilities with sensible defaults.
905	*/
906	pState->caps.maxActiveLights = 1;
907	pState->caps.maxTextures = 1;
908	pState->caps.maxClipDistances = 4;
909	pState->caps.maxColorAttachments = 1;
910	pState->caps.maxRectangleTextureSize = 2048;
911	pState->caps.maxTextureAnisotropy = 1;
912	pState->caps.maxVertexShaderInstructions = 1024;
913	pState->caps.maxFragmentShaderInstructions = 1024;
914	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
915	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
916	pState->caps.flPointSize[0] = 1;
917	pState->caps.flPointSize[1] = 1;
918
919	/*
920	* Query capabilities
921	*/
922	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
923	pState->caps.fTextureFilterAnisotropicSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_filter_anisotropic ");
924
925	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
926	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
927	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
928	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
929	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
930	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
931	#else
932	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
933	#endif
934	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
935	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
936	if (pState->caps.fTextureFilterAnisotropicSupported)
937	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
938	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
939
940	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
941	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
942	&pState->caps.maxFragmentShaderTemps));
943	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
944	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
945	&pState->caps.maxFragmentShaderInstructions));
946	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
947	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
948	&pState->caps.maxVertexShaderTemps));
949	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
950	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
951	&pState->caps.maxVertexShaderInstructions));
952
953	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
954	* ARB Assembly Language
955	* These are done through testing the presence of extensions. You should test them in this order:
956	* GL_NV_gpu_program4: SM 4.0 or better.
957	* GL_NV_vertex_program3: SM 3.0 or better.
958	* GL_ARB_fragment_program: SM 2.0 or better.
959	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
960	*
961	*/
962	/** @todo distinguish between vertex and pixel shaders??? */
963	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
964	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
965	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
966	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
967	#else
968	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
969	#endif
970	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
971	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
972	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
973	{
974	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
975	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
976	}
977	else
978	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
979	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
980	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
981	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
982	)
983	{
984	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
985	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
986	}
987	else
988	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
989	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
990	{
991	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
992	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
993	}
994	else
995	{
996	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
997	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
998	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
999	}
1000
1001	/* Now check the shading language version, in case it indicates a higher supported version. */
1002	if (v >= 3.30f)
1003	{
1004	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
1005	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
1006	}
1007	else
1008	if (v >= 1.20f)
1009	{
1010	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1011	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1012	}
1013
1014	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1015	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1016	{
1017	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1018	}
1019
1020	/*
1021	* Tweak capabilities.
1022	*/
1023	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1024	if ( pState->caps.maxVertexShaderTemps < 32
1025	&& vmsvga3dIsVendorIntel())
1026	pState->caps.maxVertexShaderTemps = 32;
1027
1028	#if 0
1029	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1030	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1031	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1032	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1033	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1034	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1035	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1036	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1037	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1038	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1039	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1040	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1041	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1042	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1043	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1044	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1045	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1046	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1047	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1048	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1049	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1050	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1051	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1052	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1053	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1054	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1055	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1056	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1057	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1058	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1059	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1060	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1061	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1062	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1063	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1064	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1065	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1066	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1067	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1068	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1069	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1070	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1071	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1072	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1073	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1074	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1075	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1076	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1077	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1078	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1079	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1080	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1081	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1082	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1083	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1084	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1085	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1086	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1087	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1088	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1089	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1090	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1091	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1092	#endif
1093
1094	LogRel(("VMSVGA3d: Capabilities:\n"));
1095	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1096	pState->caps.maxActiveLights, pState->caps.maxTextures));
1097	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1098	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1099	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1100	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1101	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1102	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1103	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1104	pState->caps.maxFragmentShaderTemps,
1105	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1106	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1107	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d\n",
1108	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion));
1109	LogRel(("VMSVGA3d: fS3TCSupported=%-2d fTextureFilterAnisotropicSupported=%d\n",
1110	pState->caps.fS3TCSupported, pState->caps.fTextureFilterAnisotropicSupported));
1111
1112
1113	/* Initialize the shader library. */
1114	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1115	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1116	rc = ShaderInitLib(&pState->ShaderIf);
1117	AssertRC(rc);
1118
1119	/* Cleanup */
1120	rc = vmsvga3dContextDestroy(pThis, 1);
1121	AssertRC(rc);
1122	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1123	rc = vmsvga3dContextDestroy(pThis, 2);
1124	AssertRC(rc);
1125	#endif
1126
1127	if ( pState->rsGLVersion < 3.0
1128	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1129	{
1130	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1131	return VERR_NOT_IMPLEMENTED;
1132	}
1133
1134	return VINF_SUCCESS;
1135	}
1136
1137	int vmsvga3dReset(PVGASTATE pThis)
1138	{
1139	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1140	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1141
1142	/* Destroy all leftover surfaces. */
1143	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1144	{
1145	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1146	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1147	}
1148
1149	/* Destroy all leftover contexts. */
1150	for (uint32_t i = 0; i < pState->cContexts; i++)
1151	{
1152	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1153	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1154	}
1155
1156	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1157	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1158
1159	return VINF_SUCCESS;
1160	}
1161
1162	int vmsvga3dTerminate(PVGASTATE pThis)
1163	{
1164	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1165	AssertReturn(pState, VERR_WRONG_ORDER);
1166	int rc;
1167
1168	rc = vmsvga3dReset(pThis);
1169	AssertRCReturn(rc, rc);
1170
1171	/* Terminate the shader library. */
1172	rc = ShaderDestroyLib();
1173	AssertRC(rc);
1174
1175	#ifdef RT_OS_WINDOWS
1176	/* Terminate the window creation thread. */
1177	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1178	AssertRCReturn(rc, rc);
1179
1180	RTSemEventDestroy(pState->WndRequestSem);
1181	#elif defined(RT_OS_DARWIN)
1182
1183	#elif defined(RT_OS_LINUX)
1184	/* signal to the thread that it is supposed to exit */
1185	pState->bTerminate = true;
1186	/* wait for it to terminate */
1187	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1188	AssertRC(rc);
1189	XCloseDisplay(pState->display);
1190	#endif
1191
1192	RTStrFree(pState->pszExtensions);
1193	pState->pszExtensions = NULL;
1194	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1195	RTStrFree(pState->pszOtherExtensions);
1196	#endif
1197	pState->pszOtherExtensions = NULL;
1198
1199	return VINF_SUCCESS;
1200	}
1201
1202
1203	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1204	{
1205	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1206	* redraw it. */
1207
1208	#ifdef RT_OS_DARWIN
1209	RT_NOREF(pOldViewport);
1210	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1211	if ( pState
1212	&& idScreen == 0
1213	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1214	{
1215	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1216	}
1217	#else
1218	RT_NOREF(pThis, idScreen, pOldViewport);
1219	#endif
1220	}
1221
1222
1223	/**
1224	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1225	* given surface format capability.
1226	*
1227	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1228	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1229	*
1230	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1231	* of implicit guest expectations:
1232	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1233	*/
1234	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1235	{
1236	uint32_t result = 0;
1237
1238	/** @todo missing:
1239	*
1240	* SVGA3DFORMAT_OP_PIXELSIZE
1241	*/
1242
1243	switch (idx3dCaps)
1244	{
1245	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1246	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1247	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1248	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1249	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1250	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1251	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1252	break;
1253
1254	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1255	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1256	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1257	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1258	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1259	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1260	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1261	break;
1262	}
1263
1264	/** @todo check hardware caps! */
1265	switch (idx3dCaps)
1266	{
1267	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1268	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1269	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1270	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1271	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1272	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1273	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1274	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1275	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1276	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1277	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1278	result \|= SVGA3DFORMAT_OP_TEXTURE
1279	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1280	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1281	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1282	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1283	\| SVGA3DFORMAT_OP_CUBETEXTURE
1284	\| SVGA3DFORMAT_OP_SRGBREAD
1285	\| SVGA3DFORMAT_OP_SRGBWRITE;
1286	break;
1287
1288	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1289	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1290	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1291	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1292	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1293	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1294	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1295	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1296	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1297	break;
1298
1299	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1300	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1301	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1302	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1303	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1304	result \|= SVGA3DFORMAT_OP_TEXTURE
1305	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1306	\| SVGA3DFORMAT_OP_CUBETEXTURE
1307	\| SVGA3DFORMAT_OP_SRGBREAD;
1308	break;
1309
1310	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1311	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1312	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1313	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1314	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1315	break;
1316
1317	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1318	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1319	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1320	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1321	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1322	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1323	result \|= SVGA3DFORMAT_OP_TEXTURE
1324	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1325	\| SVGA3DFORMAT_OP_CUBETEXTURE
1326	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1327	break;
1328
1329	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1330	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1331	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1332	result \|= SVGA3DFORMAT_OP_TEXTURE
1333	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1334	\| SVGA3DFORMAT_OP_CUBETEXTURE
1335	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1336	break;
1337
1338	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1339	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1340	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1341	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1342	\| SVGA3DFORMAT_OP_TEXTURE;
1343	break;
1344
1345	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1346	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1347	break;
1348	}
1349	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1350
1351	return result;
1352	}
1353
1354	#if 0 /* unused */
1355	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1356	{
1357	RT_NOREF(pState3D, idx3dCaps);
1358
1359	/** @todo test this somehow */
1360	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1361
1362	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1363	return result;
1364	}
1365	#endif
1366
1367
1368	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1369	{
1370	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1371	AssertReturn(pState, VERR_NO_MEMORY);
1372	int rc = VINF_SUCCESS;
1373
1374	*pu32Val = 0;
1375
1376	/*
1377	* The capabilities access by current (2015-03-01) linux sources (gallium,
1378	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1379	* aren't access.
1380	*/
1381
1382	switch (idx3dCaps)
1383	{
1384	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1385	case SVGA3D_DEVCAP_3D:
1386	pu32Val = 1; / boolean? */
1387	break;
1388
1389	case SVGA3D_DEVCAP_MAX_LIGHTS:
1390	*pu32Val = pState->caps.maxActiveLights;
1391	break;
1392
1393	case SVGA3D_DEVCAP_MAX_TEXTURES:
1394	*pu32Val = pState->caps.maxTextures;
1395	break;
1396
1397	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1398	*pu32Val = pState->caps.maxClipDistances;
1399	break;
1400
1401	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1402	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1403	*pu32Val = pState->caps.vertexShaderVersion;
1404	break;
1405
1406	case SVGA3D_DEVCAP_VERTEX_SHADER:
1407	/* boolean? */
1408	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1409	break;
1410
1411	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1412	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1413	*pu32Val = pState->caps.fragmentShaderVersion;
1414	break;
1415
1416	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1417	/* boolean? */
1418	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1419	break;
1420
1421	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1422	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1423	/* Must be obsolete by now; surface format caps specify the same thing. */
1424	rc = VERR_INVALID_PARAMETER;
1425	break;
1426
1427	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1428	break;
1429
1430	/*
1431	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1432	* return TRUE. Even on physical hardware that does not support
1433	* these formats natively, the SVGA3D device will provide an emulation
1434	* which should be invisible to the guest OS.
1435	*/
1436	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1437	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1438	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1439	*pu32Val = 1;
1440	break;
1441
1442	case SVGA3D_DEVCAP_QUERY_TYPES:
1443	break;
1444
1445	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1446	break;
1447
1448	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1449	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1450	AssertCompile(sizeof(uint32_t) == sizeof(float));
1451	(float )pu32Val = pState->caps.flPointSize[1];
1452	break;
1453
1454	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1455	/** @todo ?? */
1456	rc = VERR_INVALID_PARAMETER;
1457	break;
1458
1459	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1460	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1461	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1462	*pu32Val = pState->caps.maxRectangleTextureSize;
1463	break;
1464
1465	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1466	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1467	//*pu32Val = pCaps->MaxVolumeExtent;
1468	*pu32Val = 256;
1469	break;
1470
1471	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1472	pu32Val = 32768; / hardcoded in Wine */
1473	break;
1474
1475	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1476	//*pu32Val = pCaps->MaxTextureAspectRatio;
1477	break;
1478
1479	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1480	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1481	*pu32Val = pState->caps.maxTextureAnisotropy;
1482	break;
1483
1484	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1485	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1486	pu32Val = 0xFFFFF; / hardcoded in Wine */
1487	break;
1488
1489	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1490	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1491	*pu32Val = pState->caps.maxVertexShaderInstructions;
1492	break;
1493
1494	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1495	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1496	break;
1497
1498	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1499	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1500	*pu32Val = pState->caps.maxVertexShaderTemps;
1501	break;
1502
1503	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1504	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1505	*pu32Val = pState->caps.maxFragmentShaderTemps;
1506	break;
1507
1508	case SVGA3D_DEVCAP_TEXTURE_OPS:
1509	break;
1510
1511	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1512	break;
1513
1514	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1515	break;
1516
1517	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1518	break;
1519
1520	case SVGA3D_DEVCAP_SUPERSAMPLE:
1521	break;
1522
1523	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1524	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1525	break;
1526
1527	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1528	break;
1529
1530	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1531	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1532	*pu32Val = pState->caps.maxColorAttachments;
1533	break;
1534
1535	/*
1536	* This is the maximum number of SVGA context IDs that the guest
1537	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1538	*/
1539	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1540	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1541	break;
1542
1543	/*
1544	* This is the maximum number of SVGA surface IDs that the guest
1545	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1546	*/
1547	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1548	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1549	break;
1550
1551	#if 0 /* Appeared more recently, not yet implemented. */
1552	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1553	case SVGA3D_DEVCAP_LINE_AA:
1554	break;
1555	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1556	case SVGA3D_DEVCAP_LINE_STIPPLE:
1557	break;
1558	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1559	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1560	break;
1561	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1562	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1563	break;
1564	#endif
1565
1566	/*
1567	* Supported surface formats.
1568	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1569	*/
1570	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1571	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1572	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1573	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1574	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1575	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1576	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1577	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1578	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1579	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1580	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1581	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1582	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1583	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1584	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1585	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1586	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1587	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1588	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1589	break;
1590
1591	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1592	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1593	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1594	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1595	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1596	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1597	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1598	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1599	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1600	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1601	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1602	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1603	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1604	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1605	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1606	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1607	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1608	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1609	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1610	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1611	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1612	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1613	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1614	break;
1615
1616	/* Linux: Not referenced in current sources. */
1617	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1618	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1619	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1620	rc = VERR_INVALID_PARAMETER;
1621	*pu32Val = 0;
1622	break;
1623
1624	default:
1625	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1626	rc = VERR_INVALID_PARAMETER;
1627	break;
1628	}
1629
1630	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1631	return rc;
1632	}
1633
1634	/**
1635	* Convert SVGA format value to its OpenGL equivalent
1636	*
1637	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1638	* help from wined3dformat_from_d3dformat().
1639	*/
1640	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1641	{
1642	#if 0
1643	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1644	#else
1645	#define AssertTestFmt(f) do {} while(0)
1646	#endif
1647	switch (format)
1648	{
1649	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1650	pSurface->internalFormatGL = GL_RGB8;
1651	pSurface->formatGL = GL_BGRA;
1652	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1653	break;
1654	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1655	pSurface->internalFormatGL = GL_RGBA8;
1656	pSurface->formatGL = GL_BGRA;
1657	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1658	break;
1659	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1660	pSurface->internalFormatGL = GL_RGB5;
1661	pSurface->formatGL = GL_RGB;
1662	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1663	AssertTestFmt(SVGA3D_R5G6B5);
1664	break;
1665	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1666	pSurface->internalFormatGL = GL_RGB5;
1667	pSurface->formatGL = GL_BGRA;
1668	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1669	AssertTestFmt(SVGA3D_X1R5G5B5);
1670	break;
1671	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1672	pSurface->internalFormatGL = GL_RGB5_A1;
1673	pSurface->formatGL = GL_BGRA;
1674	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1675	AssertTestFmt(SVGA3D_A1R5G5B5);
1676	break;
1677	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1678	pSurface->internalFormatGL = GL_RGBA4;
1679	pSurface->formatGL = GL_BGRA;
1680	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1681	AssertTestFmt(SVGA3D_A4R4G4B4);
1682	break;
1683
1684	case SVGA3D_R8G8B8A8_UNORM:
1685	pSurface->internalFormatGL = GL_RGBA8;
1686	pSurface->formatGL = GL_RGBA;
1687	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1688	break;
1689
1690	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1691	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1692	pSurface->formatGL = GL_DEPTH_COMPONENT;
1693	pSurface->typeGL = GL_UNSIGNED_INT;
1694	break;
1695	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1696	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1697	pSurface->formatGL = GL_DEPTH_COMPONENT;
1698	pSurface->typeGL = GL_UNSIGNED_SHORT;
1699	AssertTestFmt(SVGA3D_Z_D16);
1700	break;
1701	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1702	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1703	pSurface->formatGL = GL_DEPTH_STENCIL;
1704	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1705	break;
1706	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1707	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1708	pSurface->formatGL = GL_DEPTH_STENCIL;
1709	pSurface->typeGL = GL_UNSIGNED_SHORT;
1710	/** @todo Wine sources hints at no hw support for this, so test this one! */
1711	AssertTestFmt(SVGA3D_Z_D15S1);
1712	break;
1713	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1714	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1715	pSurface->formatGL = GL_DEPTH_COMPONENT;
1716	pSurface->typeGL = GL_UNSIGNED_INT;
1717	AssertTestFmt(SVGA3D_Z_D24X8);
1718	break;
1719
1720	/* Advanced D3D9 depth formats. */
1721	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1722	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1723	pSurface->formatGL = GL_DEPTH_COMPONENT;
1724	pSurface->typeGL = GL_HALF_FLOAT;
1725	break;
1726
1727	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1728	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1729	pSurface->formatGL = GL_DEPTH_COMPONENT;
1730	pSurface->typeGL = GL_FLOAT; /* ??? */
1731	break;
1732
1733	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1734	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1735	pSurface->formatGL = GL_DEPTH_STENCIL;
1736	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1737	break;
1738
1739	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1740	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1741	pSurface->formatGL = GL_RGBA; /* not used */
1742	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1743	break;
1744
1745	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1746	/* "DXT2 and DXT3 are the same from an API perspective." */
1747	RT_FALL_THRU();
1748	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1749	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1750	pSurface->formatGL = GL_RGBA; /* not used */
1751	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1752	break;
1753
1754	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1755	/* "DXT4 and DXT5 are the same from an API perspective." */
1756	RT_FALL_THRU();
1757	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1758	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1759	pSurface->formatGL = GL_RGBA; /* not used */
1760	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1761	break;
1762
1763	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1764	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1765	pSurface->formatGL = GL_LUMINANCE;
1766	pSurface->typeGL = GL_UNSIGNED_BYTE;
1767	break;
1768
1769	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1770	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1771	pSurface->formatGL = GL_LUMINANCE;
1772	pSurface->typeGL = GL_UNSIGNED_SHORT;
1773	break;
1774
1775	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1776	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1777	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1778	pSurface->typeGL = GL_UNSIGNED_BYTE;
1779	break;
1780
1781	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1782	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1783	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1784	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1785	break;
1786
1787	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1788	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1789	pSurface->formatGL = GL_ALPHA;
1790	pSurface->typeGL = GL_UNSIGNED_BYTE;
1791	break;
1792
1793	#if 0
1794
1795	/* Bump-map formats */
1796	case SVGA3D_BUMPU8V8:
1797	return D3DFMT_V8U8;
1798	case SVGA3D_BUMPL6V5U5:
1799	return D3DFMT_L6V5U5;
1800	case SVGA3D_BUMPX8L8V8U8:
1801	return D3DFMT_X8L8V8U8;
1802	case SVGA3D_BUMPL8V8U8:
1803	/* No corresponding D3D9 equivalent. */
1804	AssertFailedReturn(D3DFMT_UNKNOWN);
1805	/* signed bump-map formats */
1806	case SVGA3D_V8U8:
1807	return D3DFMT_V8U8;
1808	case SVGA3D_Q8W8V8U8:
1809	return D3DFMT_Q8W8V8U8;
1810	case SVGA3D_CxV8U8:
1811	return D3DFMT_CxV8U8;
1812	/* mixed bump-map formats */
1813	case SVGA3D_X8L8V8U8:
1814	return D3DFMT_X8L8V8U8;
1815	case SVGA3D_A2W10V10U10:
1816	return D3DFMT_A2W10V10U10;
1817	#endif
1818
1819	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1820	pSurface->internalFormatGL = GL_RGBA16F;
1821	pSurface->formatGL = GL_RGBA;
1822	#if 0 /* bird: wine uses half float, sounds correct to me... */
1823	pSurface->typeGL = GL_FLOAT;
1824	#else
1825	pSurface->typeGL = GL_HALF_FLOAT;
1826	AssertTestFmt(SVGA3D_ARGB_S10E5);
1827	#endif
1828	break;
1829
1830	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1831	pSurface->internalFormatGL = GL_RGBA32F;
1832	pSurface->formatGL = GL_RGBA;
1833	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1834	break;
1835
1836	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1837	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1838	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1839	pSurface->formatGL = GL_RGBA;
1840	#else
1841	pSurface->formatGL = GL_BGRA;
1842	#endif
1843	pSurface->typeGL = GL_UNSIGNED_INT;
1844	AssertTestFmt(SVGA3D_A2R10G10B10);
1845	break;
1846
1847
1848	/* Single- and dual-component floating point formats */
1849	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1850	pSurface->internalFormatGL = GL_R16F;
1851	pSurface->formatGL = GL_RED;
1852	#if 0 /* bird: wine uses half float, sounds correct to me... */
1853	pSurface->typeGL = GL_FLOAT;
1854	#else
1855	pSurface->typeGL = GL_HALF_FLOAT;
1856	AssertTestFmt(SVGA3D_R_S10E5);
1857	#endif
1858	break;
1859	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1860	pSurface->internalFormatGL = GL_R32F;
1861	pSurface->formatGL = GL_RED;
1862	pSurface->typeGL = GL_FLOAT;
1863	break;
1864	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1865	pSurface->internalFormatGL = GL_RG16F;
1866	pSurface->formatGL = GL_RG;
1867	#if 0 /* bird: wine uses half float, sounds correct to me... */
1868	pSurface->typeGL = GL_FLOAT;
1869	#else
1870	pSurface->typeGL = GL_HALF_FLOAT;
1871	AssertTestFmt(SVGA3D_RG_S10E5);
1872	#endif
1873	break;
1874	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1875	pSurface->internalFormatGL = GL_RG32F;
1876	pSurface->formatGL = GL_RG;
1877	pSurface->typeGL = GL_FLOAT;
1878	break;
1879
1880	/*
1881	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1882	* the most efficient format to use when creating new surfaces
1883	* expressly for index or vertex data.
1884	*/
1885	case SVGA3D_BUFFER:
1886	pSurface->internalFormatGL = -1;
1887	pSurface->formatGL = -1;
1888	pSurface->typeGL = -1;
1889	break;
1890
1891	#if 0
1892	return D3DFMT_UNKNOWN;
1893
1894	case SVGA3D_V16U16:
1895	return D3DFMT_V16U16;
1896	#endif
1897
1898	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1899	pSurface->internalFormatGL = GL_RG16;
1900	pSurface->formatGL = GL_RG;
1901	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1902	pSurface->typeGL = GL_UNSIGNED_INT;
1903	#else
1904	pSurface->typeGL = GL_UNSIGNED_SHORT;
1905	AssertTestFmt(SVGA3D_G16R16);
1906	#endif
1907	break;
1908
1909	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1910	pSurface->internalFormatGL = GL_RGBA16;
1911	pSurface->formatGL = GL_RGBA;
1912	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1913	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1914	#else
1915	pSurface->typeGL = GL_UNSIGNED_SHORT;
1916	AssertTestFmt(SVGA3D_A16B16G16R16);
1917	#endif
1918	break;
1919
1920	case SVGA3D_R8G8B8A8_SNORM:
1921	pSurface->internalFormatGL = GL_RGB8;
1922	pSurface->formatGL = GL_BGRA;
1923	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1924	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1925	break;
1926	case SVGA3D_R16G16_UNORM:
1927	pSurface->internalFormatGL = GL_RG16;
1928	pSurface->formatGL = GL_RG;
1929	pSurface->typeGL = GL_UNSIGNED_SHORT;
1930	AssertTestFmt(SVGA3D_R16G16_UNORM);
1931	break;
1932
1933	/* Packed Video formats */
1934	case SVGA3D_UYVY:
1935	case SVGA3D_YUY2:
1936	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1937	pSurface->fEmulated = true;
1938	pSurface->internalFormatGL = GL_RGBA8;
1939	pSurface->formatGL = GL_BGRA;
1940	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1941	break;
1942
1943	#if 0
1944	/* Planar video formats */
1945	case SVGA3D_NV12:
1946	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1947
1948	/* Video format with alpha */
1949	case SVGA3D_AYUV:
1950	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1951
1952	case SVGA3D_BC4_UNORM:
1953	case SVGA3D_BC5_UNORM:
1954	/* Unknown; only in DX10 & 11 */
1955	break;
1956	#endif
1957	default:
1958	AssertMsgFailed(("Unsupported format %d\n", format));
1959	break;
1960	}
1961	#undef AssertTestFmt
1962	}
1963
1964
1965	#if 0
1966	/**
1967	* Convert SVGA multi sample count value to its D3D equivalent
1968	*/
1969	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1970	{
1971	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1972	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1973
1974	if (multisampleCount > 16)
1975	return D3DMULTISAMPLE_NONE;
1976
1977	/** @todo exact same mapping as d3d? */
1978	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1979	}
1980	#endif
1981
1982	/**
1983	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1984	*
1985	* @param pState The VMSVGA3d state.
1986	* @param pSurface The surface being destroyed.
1987	*/
1988	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1989	{
1990	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1991	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1992
1993	switch (pSurface->enmOGLResType)
1994	{
1995	case VMSVGA3D_OGLRESTYPE_BUFFER:
1996	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
1997	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1998	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1999	break;
2000
2001	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2002	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
2003	glDeleteTextures(1, &pSurface->oglId.texture);
2004	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2005	if (pSurface->fEmulated)
2006	{
2007	if (pSurface->idEmulated)
2008	{
2009	glDeleteTextures(1, &pSurface->idEmulated);
2010	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2011	}
2012	}
2013	else
2014	{
2015	Assert(!pSurface->idEmulated);
2016	}
2017	break;
2018
2019	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2020	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2021	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2022	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2023	break;
2024
2025	default:
2026	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2027	("hint=%#x, type=%d\n",
2028	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2029	break;
2030	}
2031	}
2032
2033
2034	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2035	{
2036	int rc;
2037
2038	LogFunc(("Copy %d boxes from sid=%u face=%u mipmap=%u to sid=%u face=%u mipmap=%u\n",
2039	cCopyBoxes, src.sid, src.face, src.mipmap, dest.sid, dest.face, dest.mipmap));
2040
2041	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2042	AssertReturn(pState, VERR_INVALID_STATE);
2043
2044	PVMSVGA3DSURFACE pSurfaceSrc;
2045	rc = vmsvga3dSurfaceFromSid(pState, src.sid, &pSurfaceSrc);
2046	AssertRCReturn(rc, rc);
2047
2048	PVMSVGA3DSURFACE pSurfaceDst;
2049	rc = vmsvga3dSurfaceFromSid(pState, dest.sid, &pSurfaceDst);
2050	AssertRCReturn(rc, rc);
2051
2052	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceSrc))
2053	{
2054	/* The source surface is still in memory. */
2055	PVMSVGA3DMIPMAPLEVEL pMipmapLevelSrc;
2056	rc = vmsvga3dMipmapLevel(pSurfaceSrc, src.face, src.mipmap, &pMipmapLevelSrc);
2057	AssertRCReturn(rc, rc);
2058
2059	PVMSVGA3DMIPMAPLEVEL pMipmapLevelDst;
2060	rc = vmsvga3dMipmapLevel(pSurfaceDst, dest.face, dest.mipmap, &pMipmapLevelDst);
2061	AssertRCReturn(rc, rc);
2062
2063	/* The copy operation is performed on the shared context. */
2064	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2065	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2066
2067	/* Use glTexSubImage to upload the data to the destination texture.
2068	* The latter must be an OpenGL texture.
2069	*/
2070	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceDst))
2071	{
2072	LogFunc(("dest sid=%u type=0x%x format=%d -> create texture\n", dest.sid, pSurfaceDst->surfaceFlags, pSurfaceDst->format));
2073	rc = vmsvga3dBackCreateTexture(pState, pContext, pContext->id, pSurfaceDst);
2074	AssertRCReturn(rc, rc);
2075	}
2076
2077	GLenum target;
2078	if (pSurfaceDst->targetGL == GL_TEXTURE_CUBE_MAP)
2079	target = vmsvga3dCubemapFaceFromIndex(dest.face);
2080	else
2081	{
2082	AssertMsg(pSurfaceDst->targetGL == GL_TEXTURE_2D, ("Test %#x\n", pSurfaceDst->targetGL));
2083	target = pSurfaceDst->targetGL;
2084	}
2085
2086	/* Save the unpacking parameters and set what we need here. */
2087	VMSVGAPACKPARAMS SavedParams;
2088	vmsvga3dOglSetUnpackParams(pState, pContext,
2089	pMipmapLevelSrc->mipmapSize.width,
2090	target == GL_TEXTURE_3D ? pMipmapLevelSrc->mipmapSize.height : 0,
2091	&SavedParams);
2092
2093	glBindTexture(pSurfaceDst->targetGL, pSurfaceDst->oglId.texture);
2094	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2095
2096	for (uint32_t i = 0; i < cCopyBoxes; ++i)
2097	{
2098	SVGA3dCopyBox clipBox = pBox[i];
2099	vmsvgaR3ClipCopyBox(&pMipmapLevelSrc->mipmapSize, &pMipmapLevelDst->mipmapSize, &clipBox);
2100	if ( !clipBox.w
2101	\|\| !clipBox.h
2102	\|\| !clipBox.d)
2103	{
2104	LogFunc(("Skipped empty box.\n"));
2105	continue;
2106	}
2107
2108	LogFunc(("copy box %d,%d,%d %dx%d to %d,%d,%d\n",
2109	clipBox.srcx, clipBox.srcy, clipBox.srcz, clipBox.w, clipBox.h, clipBox.x, clipBox.y, clipBox.z));
2110
2111	uint32_t const u32BlockX = clipBox.srcx / pSurfaceSrc->cxBlock;
2112	uint32_t const u32BlockY = clipBox.srcy / pSurfaceSrc->cyBlock;
2113	uint32_t const u32BlockZ = clipBox.srcz;
2114	Assert(u32BlockX * pSurfaceSrc->cxBlock == clipBox.srcx);
2115	Assert(u32BlockY * pSurfaceSrc->cyBlock == clipBox.srcy);
2116
2117	uint8_t const pSrcBits = (uint8_t )pMipmapLevelSrc->pSurfaceData
2118	+ pMipmapLevelSrc->cbSurfacePlane * u32BlockZ
2119	+ pMipmapLevelSrc->cbSurfacePitch * u32BlockY
2120	+ pSurfaceSrc->cbBlock * u32BlockX;
2121
2122	if (target == GL_TEXTURE_3D)
2123	{
2124	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2125	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2126	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2127	{
2128	pState->ext.glCompressedTexSubImage3D(target, dest.mipmap,
2129	clipBox.x, clipBox.y, clipBox.z,
2130	clipBox.w, clipBox.h, clipBox.d,
2131	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2132	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2133	}
2134	else
2135	{
2136	pState->ext.glTexSubImage3D(target, dest.mipmap,
2137	clipBox.x, clipBox.y, clipBox.z,
2138	clipBox.w, clipBox.h, clipBox.d,
2139	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2140	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2141	}
2142	}
2143	else
2144	{
2145	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2146	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2147	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2148	{
2149	pState->ext.glCompressedTexSubImage2D(target, dest.mipmap,
2150	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2151	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2152	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2153	}
2154	else
2155	{
2156	glTexSubImage2D(target, dest.mipmap,
2157	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2158	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2159	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2160	}
2161	}
2162	}
2163
2164	glBindTexture(pSurfaceDst->targetGL, 0);
2165	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2166
2167	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2168
2169	return VINF_SUCCESS;
2170	}
2171
2172	for (uint32_t i = 0; i < cCopyBoxes; i++)
2173	{
2174	SVGA3dBox destBox, srcBox;
2175
2176	srcBox.x = pBox[i].srcx;
2177	srcBox.y = pBox[i].srcy;
2178	srcBox.z = pBox[i].srcz;
2179	srcBox.w = pBox[i].w;
2180	srcBox.h = pBox[i].h;
2181	srcBox.d = pBox[i].d;
2182
2183	destBox.x = pBox[i].x;
2184	destBox.y = pBox[i].y;
2185	destBox.z = pBox[i].z;
2186	destBox.w = pBox[i].w;
2187	destBox.h = pBox[i].h;
2188	destBox.d = pBox[i].d;
2189
2190	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2191	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2192	AssertRCReturn(rc, rc);
2193	}
2194	return VINF_SUCCESS;
2195	}
2196
2197
2198	/**
2199	* Saves texture unpacking parameters and loads the specified ones.
2200	*
2201	* @param pState The VMSVGA3D state structure.
2202	* @param pContext The active context.
2203	* @param cxRow The number of pixels in a row. 0 for the entire width.
2204	* @param cyImage The height of the image in pixels. 0 for the entire height.
2205	* @param pSave Where to save stuff.
2206	*/
2207	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, GLint cxRow, GLint cyImage,
2208	PVMSVGAPACKPARAMS pSave)
2209	{
2210	RT_NOREF(pState);
2211
2212	/*
2213	* Save (ignore errors, setting the defaults we want and avoids restore).
2214	*/
2215	pSave->iAlignment = 1;
2216	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2217	pSave->cxRow = 0;
2218	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2219	pSave->cyImage = 0;
2220	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage), pState, pContext);
2221
2222	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2223	pSave->fSwapBytes = GL_FALSE;
2224	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2225	Assert(pSave->fSwapBytes == GL_FALSE);
2226
2227	pSave->fLsbFirst = GL_FALSE;
2228	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2229	Assert(pSave->fLsbFirst == GL_FALSE);
2230
2231	pSave->cSkipRows = 0;
2232	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2233	Assert(pSave->cSkipRows == 0);
2234
2235	pSave->cSkipPixels = 0;
2236	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2237	Assert(pSave->cSkipPixels == 0);
2238
2239	pSave->cSkipImages = 0;
2240	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2241	Assert(pSave->cSkipImages == 0);
2242
2243	VMSVGA3D_CLEAR_GL_ERRORS();
2244	#endif
2245
2246	/*
2247	* Setup unpack.
2248	*
2249	* Note! We use 1 as alignment here because we currently don't do any
2250	* aligning of line pitches anywhere.
2251	*/
2252	pSave->fChanged = 0;
2253	if (pSave->iAlignment != 1)
2254	{
2255	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2256	pSave->fChanged \|= VMSVGAPACKPARAMS_ALIGNMENT;
2257	}
2258	if (pSave->cxRow != cxRow)
2259	{
2260	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, cxRow), pState, pContext);
2261	pSave->fChanged \|= VMSVGAPACKPARAMS_ROW_LENGTH;
2262	}
2263	if (pSave->cyImage != cyImage)
2264	{
2265	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, cyImage), pState, pContext);
2266	pSave->fChanged \|= VMSVGAPACKPARAMS_IMAGE_HEIGHT;
2267	}
2268	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2269	if (pSave->fSwapBytes != 0)
2270	{
2271	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2272	pSave->fChanged \|= VMSVGAPACKPARAMS_SWAP_BYTES;
2273	}
2274	if (pSave->fLsbFirst != 0)
2275	{
2276	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2277	pSave->fChanged \|= VMSVGAPACKPARAMS_LSB_FIRST;
2278	}
2279	if (pSave->cSkipRows != 0)
2280	{
2281	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2282	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_ROWS;
2283	}
2284	if (pSave->cSkipPixels != 0)
2285	{
2286	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2287	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_PIXELS;
2288	}
2289	if (pSave->cSkipImages != 0)
2290	{
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2292	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_IMAGES;
2293	}
2294	#endif
2295	}
2296
2297
2298	/**
2299	* Restores texture unpacking parameters.
2300	*
2301	* @param pState The VMSVGA3D state structure.
2302	* @param pContext The active context.
2303	* @param pSave Where stuff was saved.
2304	*/
2305	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext,
2306	PCVMSVGAPACKPARAMS pSave)
2307	{
2308	RT_NOREF(pState);
2309
2310	if (pSave->fChanged & VMSVGAPACKPARAMS_ALIGNMENT)
2311	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2312	if (pSave->fChanged & VMSVGAPACKPARAMS_ROW_LENGTH)
2313	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2314	if (pSave->fChanged & VMSVGAPACKPARAMS_IMAGE_HEIGHT)
2315	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2316	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2317	if (pSave->fChanged & VMSVGAPACKPARAMS_SWAP_BYTES)
2318	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2319	if (pSave->fChanged & VMSVGAPACKPARAMS_LSB_FIRST)
2320	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2321	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_ROWS)
2322	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2323	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_PIXELS)
2324	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2325	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_IMAGES)
2326	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2327	#endif
2328	}
2329
2330	/**
2331	* Create D3D/OpenGL texture object for the specified surface.
2332	*
2333	* Surfaces are created when needed.
2334	*
2335	* @param pState The VMSVGA3d state.
2336	* @param pContext The context.
2337	* @param idAssociatedContext Probably the same as pContext->id.
2338	* @param pSurface The surface to create the texture for.
2339	*/
2340	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2341	PVMSVGA3DSURFACE pSurface)
2342	{
2343	RT_NOREF(idAssociatedContext);
2344
2345	LogFunc(("sid=%u\n", pSurface->id));
2346
2347	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2348
2349	/* Fugure out what kind of texture we are creating. */
2350	GLenum binding;
2351	GLenum target;
2352	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2353	{
2354	Assert(pSurface->cFaces == 6);
2355
2356	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2357	target = GL_TEXTURE_CUBE_MAP;
2358	}
2359	else
2360	{
2361	if (pSurface->paMipmapLevels[0].mipmapSize.depth > 1)
2362	{
2363	binding = GL_TEXTURE_BINDING_3D;
2364	target = GL_TEXTURE_3D;
2365	}
2366	else
2367	{
2368	Assert(pSurface->cFaces == 1);
2369
2370	binding = GL_TEXTURE_BINDING_2D;
2371	target = GL_TEXTURE_2D;
2372	}
2373	}
2374
2375	/* All textures are created in the SharedCtx. */
2376	uint32_t idPrevCtx = pState->idActiveContext;
2377	pContext = &pState->SharedCtx;
2378	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2379
2380	glGenTextures(1, &pSurface->oglId.texture);
2381	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2382	if (pSurface->fEmulated)
2383	{
2384	glGenTextures(1, &pSurface->idEmulated);
2385	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2386	}
2387	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2388
2389	GLint activeTexture = 0;
2390	glGetIntegerv(binding, &activeTexture);
2391	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2392
2393	/* Must bind texture to the current context in order to change it. */
2394	glBindTexture(target, pSurface->oglId.texture);
2395	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2396
2397	/* Set the unpacking parameters. */
2398	VMSVGAPACKPARAMS SavedParams;
2399	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2400
2401	/** @todo Set the mip map generation filter settings. */
2402
2403	/* Set the mipmap base and max level parameters. */
2404	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2405	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2406	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2407	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2408
2409	if (pSurface->fDirty)
2410	LogFunc(("sync dirty texture\n"));
2411
2412	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2413	if (target == GL_TEXTURE_3D)
2414	{
2415	for (uint32_t i = 0; i < numMipLevels; ++i)
2416	{
2417	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2418	* exposing random host memory to the guest and helps a with the fedora 21 surface
2419	* corruption issues (launchpad, background, search field, login).
2420	*/
2421	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2422
2423	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2424	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2425
2426	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2427	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2428	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2429	{
2430	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2431	i,
2432	pSurface->internalFormatGL,
2433	pMipLevel->mipmapSize.width,
2434	pMipLevel->mipmapSize.height,
2435	pMipLevel->mipmapSize.depth,
2436	0,
2437	pMipLevel->cbSurface,
2438	pMipLevel->pSurfaceData);
2439	}
2440	else
2441	{
2442	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2443	i,
2444	pSurface->internalFormatGL,
2445	pMipLevel->mipmapSize.width,
2446	pMipLevel->mipmapSize.height,
2447	pMipLevel->mipmapSize.depth,
2448	0, /* border */
2449	pSurface->formatGL,
2450	pSurface->typeGL,
2451	pMipLevel->pSurfaceData);
2452	}
2453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2454
2455	pMipLevel->fDirty = false;
2456	}
2457	}
2458	else if (target == GL_TEXTURE_CUBE_MAP)
2459	{
2460	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2461	{
2462	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2463
2464	for (uint32_t i = 0; i < numMipLevels; ++i)
2465	{
2466	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[iFace * numMipLevels + i];
2467	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2468	Assert(pMipLevel->mipmapSize.depth == 1);
2469
2470	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2471	iFace, i, pMipLevel->fDirty));
2472
2473	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2474	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2475	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2476	{
2477	pState->ext.glCompressedTexImage2D(Face,
2478	i,
2479	pSurface->internalFormatGL,
2480	pMipLevel->mipmapSize.width,
2481	pMipLevel->mipmapSize.height,
2482	0,
2483	pMipLevel->cbSurface,
2484	pMipLevel->pSurfaceData);
2485	}
2486	else
2487	{
2488	glTexImage2D(Face,
2489	i,
2490	pSurface->internalFormatGL,
2491	pMipLevel->mipmapSize.width,
2492	pMipLevel->mipmapSize.height,
2493	0,
2494	pSurface->formatGL,
2495	pSurface->typeGL,
2496	pMipLevel->pSurfaceData);
2497	}
2498	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2499
2500	pMipLevel->fDirty = false;
2501	}
2502	}
2503	}
2504	else if (target == GL_TEXTURE_2D)
2505	{
2506	for (uint32_t i = 0; i < numMipLevels; ++i)
2507	{
2508	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2509	* exposing random host memory to the guest and helps a with the fedora 21 surface
2510	* corruption issues (launchpad, background, search field, login).
2511	*/
2512	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2513	Assert(pMipLevel->mipmapSize.depth == 1);
2514
2515	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2516	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2517
2518	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2519	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2520	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2521	{
2522	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2523	i,
2524	pSurface->internalFormatGL,
2525	pMipLevel->mipmapSize.width,
2526	pMipLevel->mipmapSize.height,
2527	0,
2528	pMipLevel->cbSurface,
2529	pMipLevel->pSurfaceData);
2530	}
2531	else
2532	{
2533	glTexImage2D(GL_TEXTURE_2D,
2534	i,
2535	pSurface->internalFormatGL,
2536	pMipLevel->mipmapSize.width,
2537	pMipLevel->mipmapSize.height,
2538	0,
2539	pSurface->formatGL,
2540	pSurface->typeGL,
2541	NULL);
2542	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2543
2544	if (pSurface->fEmulated)
2545	{
2546	/* Bind the emulated texture and init it. */
2547	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2548	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2549
2550	glTexImage2D(GL_TEXTURE_2D,
2551	i,
2552	pSurface->internalFormatGL,
2553	pMipLevel->mipmapSize.width,
2554	pMipLevel->mipmapSize.height,
2555	0,
2556	pSurface->formatGL,
2557	pSurface->typeGL,
2558	NULL);
2559	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2560	}
2561
2562	/* Fetch texture data: either to the actual or to the emulated texture.
2563	* The pSurfaceData buffer may be smaller than the entire texture
2564	* for emulated formats, in which case only part of the texture is synched.
2565	*/
2566	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2567	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2568	glTexSubImage2D(GL_TEXTURE_2D,
2569	i,
2570	0,
2571	0,
2572	cBlocksX,
2573	cBlocksY,
2574	pSurface->formatGL,
2575	pSurface->typeGL,
2576	pMipLevel->pSurfaceData);
2577	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2578
2579	if (pSurface->fEmulated)
2580	{
2581	/* Update the actual texture using the format converter. */
2582	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2583
2584	/* Rebind the actual texture. */
2585	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2586	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2587	}
2588	}
2589	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2590
2591	pMipLevel->fDirty = false;
2592	}
2593	}
2594
2595	pSurface->fDirty = false;
2596
2597	/* Restore unpacking parameters. */
2598	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2599
2600	/* Restore the old active texture. */
2601	glBindTexture(target, activeTexture);
2602	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2603
2604	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2605	pSurface->targetGL = target;
2606	pSurface->bindingGL = binding;
2607
2608	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2609	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2610	return VINF_SUCCESS;
2611	}
2612
2613
2614	/**
2615	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2616	*
2617	* @returns VBox status code.
2618	* @param pThis The VGA device instance.
2619	* @param pState The VMSVGA3d state.
2620	* @param pDstSurface The destination host surface.
2621	* @param uDstFace The destination face (valid).
2622	* @param uDstMipmap The destination mipmap level (valid).
2623	* @param pDstBox The destination box.
2624	* @param pSrcSurface The source host surface.
2625	* @param uSrcFace The destination face (valid).
2626	* @param uSrcMipmap The source mimap level (valid).
2627	* @param pSrcBox The source box.
2628	* @param enmMode The strecht blt mode .
2629	* @param pContext The VMSVGA3d context (already current for OGL).
2630	*/
2631	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2632	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2633	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2634	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2635	{
2636	RT_NOREF(pThis);
2637
2638	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2639	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2640
2641	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2642	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2643	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2644	{
2645	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2646	glAttachment = GL_DEPTH_ATTACHMENT;
2647	glMask = GL_DEPTH_BUFFER_BIT;
2648	}
2649
2650	/* Activate the read and draw framebuffer objects. */
2651	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2652	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2653	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2655
2656	/* Bind the source and destination objects to the right place. */
2657	GLenum textarget;
2658	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2659	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2660	else
2661	{
2662	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2663	textarget = GL_TEXTURE_2D;
2664	}
2665	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2666	pSrcSurface->oglId.texture, uSrcMipmap);
2667	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2668
2669	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2670	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2671	else
2672	{
2673	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2674	textarget = GL_TEXTURE_2D;
2675	}
2676	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2677	pDstSurface->oglId.texture, uDstMipmap);
2678	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2679
2680	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2681	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2682	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2683	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2684	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2685
2686	pState->ext.glBlitFramebuffer(pSrcBox->x,
2687	pSrcBox->y,
2688	pSrcBox->x + pSrcBox->w, /* exclusive. */
2689	pSrcBox->y + pSrcBox->h,
2690	pDstBox->x,
2691	pDstBox->y,
2692	pDstBox->x + pDstBox->w, /* exclusive. */
2693	pDstBox->y + pDstBox->h,
2694	glMask,
2695	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2696	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2697
2698	/* Reset the frame buffer association */
2699	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2700	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2701
2702	return VINF_SUCCESS;
2703	}
2704
2705	/**
2706	* Save texture packing parameters and loads those appropriate for the given
2707	* surface.
2708	*
2709	* @param pState The VMSVGA3D state structure.
2710	* @param pContext The active context.
2711	* @param pSurface The surface.
2712	* @param pSave Where to save stuff.
2713	*/
2714	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2715	PVMSVGAPACKPARAMS pSave)
2716	{
2717	RT_NOREF(pState);
2718	/*
2719	* Save (ignore errors, setting the defaults we want and avoids restore).
2720	*/
2721	pSave->iAlignment = 1;
2722	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2723	pSave->cxRow = 0;
2724	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2725
2726	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2727	pSave->cyImage = 0;
2728	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2729	Assert(pSave->cyImage == 0);
2730
2731	pSave->fSwapBytes = GL_FALSE;
2732	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2733	Assert(pSave->fSwapBytes == GL_FALSE);
2734
2735	pSave->fLsbFirst = GL_FALSE;
2736	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2737	Assert(pSave->fLsbFirst == GL_FALSE);
2738
2739	pSave->cSkipRows = 0;
2740	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2741	Assert(pSave->cSkipRows == 0);
2742
2743	pSave->cSkipPixels = 0;
2744	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2745	Assert(pSave->cSkipPixels == 0);
2746
2747	pSave->cSkipImages = 0;
2748	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2749	Assert(pSave->cSkipImages == 0);
2750
2751	VMSVGA3D_CLEAR_GL_ERRORS();
2752	#endif
2753
2754	/*
2755	* Setup unpack.
2756	*
2757	* Note! We use 1 as alignment here because we currently don't do any
2758	* aligning of line pitches anywhere.
2759	*/
2760	NOREF(pSurface);
2761	if (pSave->iAlignment != 1)
2762	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2763	if (pSave->cxRow != 0)
2764	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2765	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2766	if (pSave->cyImage != 0)
2767	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2768	if (pSave->fSwapBytes != 0)
2769	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2770	if (pSave->fLsbFirst != 0)
2771	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2772	if (pSave->cSkipRows != 0)
2773	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2774	if (pSave->cSkipPixels != 0)
2775	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2776	if (pSave->cSkipImages != 0)
2777	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2778	#endif
2779	}
2780
2781
2782	/**
2783	* Restores texture packing parameters.
2784	*
2785	* @param pState The VMSVGA3D state structure.
2786	* @param pContext The active context.
2787	* @param pSurface The surface.
2788	* @param pSave Where stuff was saved.
2789	*/
2790	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2791	PCVMSVGAPACKPARAMS pSave)
2792	{
2793	RT_NOREF(pState, pSurface);
2794	if (pSave->iAlignment != 1)
2795	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2796	if (pSave->cxRow != 0)
2797	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2798	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2799	if (pSave->cyImage != 0)
2800	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2801	if (pSave->fSwapBytes != 0)
2802	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2803	if (pSave->fLsbFirst != 0)
2804	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2805	if (pSave->cSkipRows != 0)
2806	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2807	if (pSave->cSkipPixels != 0)
2808	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2809	if (pSave->cSkipImages != 0)
2810	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2811	#endif
2812	}
2813
2814
2815	/**
2816	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2817	*
2818	* @returns Failure status code or @a rc.
2819	* @param pThis The shared VGA instance data.
2820	* @param pThisCC The VGA/VMSVGA state for ring-3.
2821	* @param pState The VMSVGA3d state.
2822	* @param pSurface The host surface.
2823	* @param pMipLevel Mipmap level. The caller knows it already.
2824	* @param uHostFace The host face (valid).
2825	* @param uHostMipmap The host mipmap level (valid).
2826	* @param GuestPtr The guest pointer.
2827	* @param cbGuestPitch The guest pitch.
2828	* @param transfer The transfer direction.
2829	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2830	* @param pContext The context (for OpenGL).
2831	* @param rc The current rc for all boxes.
2832	* @param iBox The current box number (for Direct 3D).
2833	*/
2834	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVGASTATECC pThisCC, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2835	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2836	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2837	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2838	{
2839	RT_NOREF(iBox);
2840
2841	switch (pSurface->enmOGLResType)
2842	{
2843	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2844	{
2845	uint32_t cbSurfacePitch;
2846	uint8_t *pDoubleBuffer;
2847	uint32_t offHst;
2848
2849	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2850	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2851	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2852	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2853
2854	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2855	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2856	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2857	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2858
2859	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2860	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2861	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2862
2863	GLenum texImageTarget;
2864	if (pSurface->targetGL == GL_TEXTURE_3D)
2865	{
2866	texImageTarget = GL_TEXTURE_3D;
2867	}
2868	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2869	{
2870	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2871	}
2872	else
2873	{
2874	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2875	texImageTarget = GL_TEXTURE_2D;
2876	}
2877
2878	/* The buffer must be large enough to hold entire texture in the OpenGL format.
2879	* Multiply by the width and height "reduction" factors.
2880	* This can allocate more memory than required, but it is simpler for now.
2881	* Actually cbBuf = cbGLPixel * pMipmapLevel->mipmapSize.width * pMipmapLevel->mipmapSize.height
2882	*/
2883	pDoubleBuffer = (uint8_t )RTMemAlloc(pMipLevel->cbSurface pSurface->cxBlock * pSurface->cyBlock);
2884	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2885
2886	if (transfer == SVGA3D_READ_HOST_VRAM)
2887	{
2888	GLint activeTexture;
2889
2890	/* Must bind texture to the current context in order to read it. */
2891	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2892	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2893
2894	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2895	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2896
2897	if (pSurface->fEmulated)
2898	{
2899	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2900	}
2901
2902	/* Set row length and alignment of the input data. */
2903	VMSVGAPACKPARAMS SavedParams;
2904	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2905
2906	glGetTexImage(texImageTarget,
2907	uHostMipmap,
2908	pSurface->formatGL,
2909	pSurface->typeGL,
2910	pDoubleBuffer);
2911	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2912
2913	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2914
2915	/* Restore the old active texture. */
2916	glBindTexture(pSurface->targetGL, activeTexture);
2917	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2918
2919	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2920	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2921	}
2922	else
2923	{
2924	/* The buffer will contain only the copied rectangle. */
2925	offHst = 0;
2926	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2927	}
2928
2929	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2930
2931	rc = vmsvgaR3GmrTransfer(pThis,
2932	pThisCC,
2933	transfer,
2934	pDoubleBuffer,
2935	pMipLevel->cbSurface,
2936	offHst,
2937	cbSurfacePitch,
2938	GuestPtr,
2939	offGst,
2940	cbGuestPitch,
2941	cBlocksX * pSurface->cbBlock,
2942	cBlocksY);
2943	AssertRC(rc);
2944
2945	/* Update the opengl surface data. */
2946	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2947	{
2948	GLint activeTexture = 0;
2949	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2950	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2951
2952	/* Must bind texture to the current context in order to change it. */
2953	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2954	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2955
2956	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2957
2958	/* Set row length and alignment of the input data. */
2959	/* We do not need to set ROW_LENGTH to w here, because the image in pDoubleBuffer is tightly packed. */
2960	VMSVGAPACKPARAMS SavedParams;
2961	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2962
2963	if (texImageTarget == GL_TEXTURE_3D)
2964	{
2965	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2966	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2967	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2968	{
2969	pState->ext.glCompressedTexSubImage3D(texImageTarget,
2970	uHostMipmap,
2971	pBox->x,
2972	pBox->y,
2973	pBox->z,
2974	pBox->w,
2975	pBox->h,
2976	pBox->d,
2977	pSurface->formatGL,
2978	pSurface->typeGL,
2979	pDoubleBuffer);
2980	}
2981	else
2982	{
2983	pState->ext.glTexSubImage3D(texImageTarget,
2984	uHostMipmap,
2985	u32HostBlockX,
2986	u32HostBlockY,
2987	pBox->z,
2988	cBlocksX,
2989	cBlocksY,
2990	pBox->d,
2991	pSurface->formatGL,
2992	pSurface->typeGL,
2993	pDoubleBuffer);
2994	}
2995	}
2996	else
2997	{
2998	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2999	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3000	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3001	{
3002	pState->ext.glCompressedTexSubImage2D(texImageTarget,
3003	uHostMipmap,
3004	pBox->x,
3005	pBox->y,
3006	pBox->w,
3007	pBox->h,
3008	pSurface->internalFormatGL,
3009	cbSurfacePitch * cBlocksY,
3010	pDoubleBuffer);
3011	}
3012	else
3013	{
3014	glTexSubImage2D(texImageTarget,
3015	uHostMipmap,
3016	u32HostBlockX,
3017	u32HostBlockY,
3018	cBlocksX,
3019	cBlocksY,
3020	pSurface->formatGL,
3021	pSurface->typeGL,
3022	pDoubleBuffer);
3023	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3024
3025	if (pSurface->fEmulated)
3026	{
3027	/* Convert the texture to the actual texture if necessary */
3028	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
3029	}
3030	}
3031	}
3032	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3033
3034	/* Restore old values. */
3035	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
3036
3037	/* Restore the old active texture. */
3038	glBindTexture(pSurface->targetGL, activeTexture);
3039	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3040	}
3041
3042	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
3043
3044	/* Free the double buffer. */
3045	RTMemFree(pDoubleBuffer);
3046	break;
3047	}
3048
3049	case VMSVGA3D_OGLRESTYPE_BUFFER:
3050	{
3051	/* Buffers are uncompressed. */
3052	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
3053
3054	/* Caller already clipped pBox and buffers are 1-dimensional. */
3055	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
3056
3057	VMSVGA3D_CLEAR_GL_ERRORS();
3058	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3059	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3060	{
3061	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3062	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3063	if (RT_LIKELY(pbData != NULL))
3064	{
3065	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3066	GLint cbStrictBufSize;
3067	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3068	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3069	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3070	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3071	#endif
3072	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
3073	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
3074	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
3075	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
3076
3077	uint32_t const offHst = pBox->x * pSurface->cbBlock;
3078	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
3079
3080	rc = vmsvgaR3GmrTransfer(pThis,
3081	pThisCC,
3082	transfer,
3083	pbData,
3084	pMipLevel->cbSurface,
3085	offHst,
3086	pMipLevel->cbSurfacePitch,
3087	GuestPtr,
3088	pBox->srcx * pSurface->cbBlock,
3089	cbGuestPitch,
3090	cbWidth,
3091	pBox->h);
3092	AssertRC(rc);
3093
3094	Log4(("Buffer updated at [0x%x;0x%x):\n%.Rhxd\n", offHst, offHst + cbWidth, cbWidth, (uint8_t )pbData + offHst));
3095
3096	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3097	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3098	}
3099	else
3100	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3101	}
3102	else
3103	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3104	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3105	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3106	break;
3107	}
3108
3109	default:
3110	AssertFailed();
3111	break;
3112	}
3113
3114	return rc;
3115	}
3116
3117	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
3118	{
3119	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3120	PVMSVGA3DSURFACE pSurface;
3121	int rc = VINF_SUCCESS;
3122	PVMSVGA3DCONTEXT pContext;
3123	uint32_t cid;
3124	GLint activeTexture = 0;
3125
3126	AssertReturn(pState, VERR_NO_MEMORY);
3127
3128	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
3129	AssertRCReturn(rc, rc);
3130
3131	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3132	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3133	pSurface->autogenFilter = filter;
3134
3135	LogFunc(("sid=%u filter=%d\n", sid, filter));
3136
3137	cid = SVGA3D_INVALID_ID;
3138	pContext = &pState->SharedCtx;
3139	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3140
3141	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3142	{
3143	/* Unknown surface type; turn it into a texture. */
3144	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
3145	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
3146	AssertRCReturn(rc, rc);
3147	}
3148	else
3149	{
3150	/** @todo new filter */
3151	AssertFailed();
3152	}
3153
3154	glGetIntegerv(pSurface->bindingGL, &activeTexture);
3155	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3156
3157	/* Must bind texture to the current context in order to change it. */
3158	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
3159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3160
3161	/* Generate the mip maps. */
3162	pState->ext.glGenerateMipmap(pSurface->targetGL);
3163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3164
3165	/* Restore the old texture. */
3166	glBindTexture(pSurface->targetGL, activeTexture);
3167	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3168
3169	return VINF_SUCCESS;
3170	}
3171
3172
3173	#ifdef RT_OS_LINUX
3174	/**
3175	* X11 event handling thread.
3176	*
3177	* @returns VINF_SUCCESS (ignored)
3178	* @param hThreadSelf thread handle
3179	* @param pvUser pointer to pState structure
3180	*/
3181	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3182	{
3183	RT_NOREF(hThreadSelf);
3184	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3185	while (!pState->bTerminate)
3186	{
3187	while (XPending(pState->display) > 0)
3188	{
3189	XEvent event;
3190	XNextEvent(pState->display, &event);
3191
3192	switch (event.type)
3193	{
3194	default:
3195	break;
3196	}
3197	}
3198	/* sleep for 16ms to not burn too many cycles */
3199	RTThreadSleep(16);
3200	}
3201	return VINF_SUCCESS;
3202	}
3203	#endif // RT_OS_LINUX
3204
3205
3206	/**
3207	* Create a new 3d context
3208	*
3209	* @returns VBox status code.
3210	* @param pThis The shared VGA instance data.
3211	* @param cid Context id
3212	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3213	*/
3214	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3215	{
3216	int rc;
3217	PVMSVGA3DCONTEXT pContext;
3218	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3219
3220	AssertReturn(pState, VERR_NO_MEMORY);
3221	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3222	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3223	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3224	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3225	#endif
3226
3227	Log(("vmsvga3dContextDefine id %x\n", cid));
3228
3229	if (cid == VMSVGA3D_SHARED_CTX_ID)
3230	pContext = &pState->SharedCtx;
3231	else
3232	{
3233	if (cid >= pState->cContexts)
3234	{
3235	/* Grow the array. */
3236	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3237	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3238	AssertReturn(pvNew, VERR_NO_MEMORY);
3239	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3240	while (pState->cContexts < cNew)
3241	{
3242	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3243	AssertReturn(pContext, VERR_NO_MEMORY);
3244	pContext->id = SVGA3D_INVALID_ID;
3245	pState->papContexts[pState->cContexts++] = pContext;
3246	}
3247	}
3248	/* If one already exists with this id, then destroy it now. */
3249	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3250	vmsvga3dContextDestroy(pThis, cid);
3251
3252	pContext = pState->papContexts[cid];
3253	}
3254
3255	/*
3256	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3257	*/
3258	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3259	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3260	{
3261	pSharedCtx = &pState->SharedCtx;
3262	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3263	{
3264	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3265	AssertLogRelRCReturn(rc, rc);
3266
3267	/* Create resources which use the shared context. */
3268	vmsvga3dOnSharedContextDefine(pState);
3269	}
3270	}
3271
3272	/*
3273	* Initialize the context.
3274	*/
3275	memset(pContext, 0, sizeof(*pContext));
3276	pContext->id = cid;
3277	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3278	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3279
3280	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3281	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3282	pContext->idFramebuffer = OPENGL_INVALID_ID;
3283	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3284	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3285
3286	rc = ShaderContextCreate(&pContext->pShaderContext);
3287	AssertRCReturn(rc, rc);
3288
3289	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3290	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3291
3292	#ifdef RT_OS_WINDOWS
3293	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3294	* to present the rendered image. Rendered images from the guest will be copied to
3295	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3296	* system memory in the guest VRAM.
3297	*/
3298	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3299	AssertRCReturn(rc, rc);
3300
3301	pContext->hdc = GetDC(pContext->hwnd);
3302	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3303
3304	PIXELFORMATDESCRIPTOR pfd = {
3305	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3306	1, /* version number */
3307	PFD_DRAW_TO_WINDOW \| /* support window */
3308	PFD_SUPPORT_OPENGL, /* support OpenGL */
3309	PFD_TYPE_RGBA, /* RGBA type */
3310	24, /* 24-bit color depth */
3311	0, 0, 0, 0, 0, 0, /* color bits ignored */
3312	8, /* alpha buffer */
3313	0, /* shift bit ignored */
3314	0, /* no accumulation buffer */
3315	0, 0, 0, 0, /* accum bits ignored */
3316	16, /* set depth buffer */
3317	16, /* set stencil buffer */
3318	0, /* no auxiliary buffer */
3319	PFD_MAIN_PLANE, /* main layer */
3320	0, /* reserved */
3321	0, 0, 0 /* layer masks ignored */
3322	};
3323	int pixelFormat;
3324	BOOL ret;
3325
3326	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3327	/** @todo is this really necessary?? */
3328	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3329	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3330
3331	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3332	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3333
3334	pContext->hglrc = wglCreateContext(pContext->hdc);
3335	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3336
3337	if (pSharedCtx)
3338	{
3339	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3340	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3341	}
3342
3343	#elif defined(RT_OS_DARWIN)
3344	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3345
3346	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3347	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3348	NULL,
3349	4, 4,
3350	pShareContext, pContext->fOtherProfile);
3351
3352	#else
3353	if (pState->display == NULL)
3354	{
3355	/* get an X display and make sure we have glX 1.3 */
3356	pState->display = XOpenDisplay(0);
3357	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3358	int glxMajor, glxMinor;
3359	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3360	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3361	/* start our X event handling thread */
3362	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3363	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3364	}
3365
3366	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3367	/* Create a small 4x4 window required for GL context. */
3368	int attrib[] =
3369	{
3370	GLX_RGBA,
3371	GLX_RED_SIZE, 1,
3372	GLX_GREEN_SIZE, 1,
3373	GLX_BLUE_SIZE, 1,
3374	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3375	GLX_DOUBLEBUFFER,
3376	None
3377	};
3378	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3379	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3380	XSetWindowAttributes swa;
3381	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3382	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3383	swa.border_pixel = 0;
3384	swa.background_pixel = 0;
3385	swa.event_mask = StructureNotifyMask;
3386	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3387	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3388	0, 0, 4, 4,
3389	0, vi->depth, InputOutput,
3390	vi->visual, flags, &swa);
3391	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3392
3393	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3394
3395	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3396	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3397	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3398	#endif
3399
3400	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3401
3402	/* NULL during the first PowerOn call. */
3403	if (pState->ext.glGenFramebuffers)
3404	{
3405	/* Create a framebuffer object for this context. */
3406	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3407	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3408
3409	/* Bind the object to the framebuffer target. */
3410	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3411	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3412
3413	/* Create read and draw framebuffer objects for this context. */
3414	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3415	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3416
3417	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3418	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3419
3420	}
3421	#if 0
3422	/** @todo move to shader lib!!! */
3423	/* Clear the screen */
3424	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3425
3426	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3427	glClearIndex(0);
3428	glClearDepth(1);
3429	glClearStencil(0xffff);
3430	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3431	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3432	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3433	if (pState->ext.glProvokingVertex)
3434	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3435	/** @todo move to shader lib!!! */
3436	#endif
3437	return VINF_SUCCESS;
3438	}
3439
3440
3441	/**
3442	* Create a new 3d context
3443	*
3444	* @returns VBox status code.
3445	* @param pThis The shared VGA instance data.
3446	* @param cid Context id
3447	*/
3448	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3449	{
3450	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3451	}
3452
3453	/**
3454	* Destroys a 3d context.
3455	*
3456	* @returns VBox status code.
3457	* @param pThis The shared VGA instance data.
3458	* @param pContext The context to destroy.
3459	* @param cid Context id
3460	*/
3461	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3462	{
3463	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3464	AssertReturn(pState, VERR_NO_MEMORY);
3465	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3466	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3467	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3468
3469	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3470
3471	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
3472	{
3473	/* Delete resources which use the shared context. */
3474	vmsvga3dOnSharedContextDestroy(pState);
3475	}
3476
3477	/* Destroy all leftover pixel shaders. */
3478	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3479	{
3480	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3481	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3482	}
3483	if (pContext->paPixelShader)
3484	RTMemFree(pContext->paPixelShader);
3485
3486	/* Destroy all leftover vertex shaders. */
3487	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3488	{
3489	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3490	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3491	}
3492	if (pContext->paVertexShader)
3493	RTMemFree(pContext->paVertexShader);
3494
3495	if (pContext->state.paVertexShaderConst)
3496	RTMemFree(pContext->state.paVertexShaderConst);
3497	if (pContext->state.paPixelShaderConst)
3498	RTMemFree(pContext->state.paPixelShaderConst);
3499
3500	if (pContext->pShaderContext)
3501	{
3502	int rc = ShaderContextDestroy(pContext->pShaderContext);
3503	AssertRC(rc);
3504	}
3505
3506	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3507	{
3508	/* Unbind the object from the framebuffer target. */
3509	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3510	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3511	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3512	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3513
3514	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3515	{
3516	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3517	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3518	}
3519	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3520	{
3521	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3522	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3523	}
3524	}
3525
3526	vmsvga3dOcclusionQueryDelete(pState, pContext);
3527
3528	#ifdef RT_OS_WINDOWS
3529	wglMakeCurrent(pContext->hdc, NULL);
3530	wglDeleteContext(pContext->hglrc);
3531	ReleaseDC(pContext->hwnd, pContext->hdc);
3532
3533	/* Destroy the window we've created. */
3534	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3535	AssertRC(rc);
3536	#elif defined(RT_OS_DARWIN)
3537	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3538	#elif defined(RT_OS_LINUX)
3539	glXMakeCurrent(pState->display, None, NULL);
3540	glXDestroyContext(pState->display, pContext->glxContext);
3541	XDestroyWindow(pState->display, pContext->window);
3542	#endif
3543
3544	memset(pContext, 0, sizeof(*pContext));
3545	pContext->id = SVGA3D_INVALID_ID;
3546
3547	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3548	return VINF_SUCCESS;
3549	}
3550
3551	/**
3552	* Destroy an existing 3d context
3553	*
3554	* @returns VBox status code.
3555	* @param pThis The shared VGA instance data.
3556	* @param cid Context id
3557	*/
3558	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3559	{
3560	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3561	AssertReturn(pState, VERR_WRONG_ORDER);
3562
3563	/*
3564	* Resolve the context and hand it to the common worker function.
3565	*/
3566	if ( cid < pState->cContexts
3567	&& pState->papContexts[cid]->id == cid)
3568	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3569
3570	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3571	return VINF_SUCCESS;
3572	}
3573
3574	/**
3575	* Worker for vmsvga3dChangeMode that resizes a context.
3576	*
3577	* @param pThis The shared VGA instance data.
3578	* @param pState The VMSVGA3d state.
3579	* @param pContext The context.
3580	*/
3581	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3582	{
3583	RT_NOREF3(pThis, pState, pContext);
3584	/* Do nothing. The window is not used for presenting. */
3585	}
3586
3587	/* Handle resize */
3588	int vmsvga3dChangeMode(PVGASTATE pThis)
3589	{
3590	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3591	AssertReturn(pState, VERR_NO_MEMORY);
3592
3593	/* Resize the shared context too. */
3594	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3595	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3596
3597	/* Resize all active contexts. */
3598	for (uint32_t i = 0; i < pState->cContexts; i++)
3599	{
3600	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3601	if (pContext->id != SVGA3D_INVALID_ID)
3602	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3603	}
3604
3605	return VINF_SUCCESS;
3606	}
3607
3608
3609	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3610	{
3611	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3612	AssertReturn(pState, VERR_NO_MEMORY);
3613	bool fModelViewChanged = false;
3614
3615	Log(("vmsvga3dSetTransform cid=%u %s\n", cid, vmsvgaTransformToString(type)));
3616
3617	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
3618
3619	PVMSVGA3DCONTEXT pContext;
3620	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3621	AssertRCReturn(rc, rc);
3622
3623	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3624
3625	/* Save this matrix for vm state save/restore. */
3626	pContext->state.aTransformState[type].fValid = true;
3627	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3628	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3629
3630	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)));
3631	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)));
3632	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)));
3633	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)));
3634
3635	switch (type)
3636	{
3637	case SVGA3D_TRANSFORM_VIEW:
3638	/* View * World = Model View */
3639	glMatrixMode(GL_MODELVIEW);
3640	glLoadMatrixf(matrix);
3641	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3642	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3643	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3644	fModelViewChanged = true;
3645	break;
3646
3647	case SVGA3D_TRANSFORM_PROJECTION:
3648	{
3649	rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3650	AssertRCReturn(rc, rc);
3651	break;
3652	}
3653
3654	case SVGA3D_TRANSFORM_TEXTURE0:
3655	glMatrixMode(GL_TEXTURE);
3656	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3657	glLoadMatrixf(matrix);
3658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3659	break;
3660
3661	case SVGA3D_TRANSFORM_TEXTURE1:
3662	case SVGA3D_TRANSFORM_TEXTURE2:
3663	case SVGA3D_TRANSFORM_TEXTURE3:
3664	case SVGA3D_TRANSFORM_TEXTURE4:
3665	case SVGA3D_TRANSFORM_TEXTURE5:
3666	case SVGA3D_TRANSFORM_TEXTURE6:
3667	case SVGA3D_TRANSFORM_TEXTURE7:
3668	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3669	return VERR_INVALID_PARAMETER;
3670
3671	case SVGA3D_TRANSFORM_WORLD:
3672	/* View * World = Model View */
3673	glMatrixMode(GL_MODELVIEW);
3674	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3675	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3676	else
3677	glLoadIdentity();
3678	glMultMatrixf(matrix);
3679	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3680	fModelViewChanged = true;
3681	break;
3682
3683	case SVGA3D_TRANSFORM_WORLD1:
3684	case SVGA3D_TRANSFORM_WORLD2:
3685	case SVGA3D_TRANSFORM_WORLD3:
3686	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3687	return VERR_INVALID_PARAMETER;
3688
3689	default:
3690	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3691	return VERR_INVALID_PARAMETER;
3692	}
3693
3694	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3695	if (fModelViewChanged)
3696	{
3697	/* Reprogram the clip planes. */
3698	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3699	{
3700	if (pContext->state.aClipPlane[j].fValid == true)
3701	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3702	}
3703
3704	/* Reprogram the light data. */
3705	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3706	{
3707	if (pContext->state.aLightData[j].fValidData == true)
3708	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3709	}
3710	}
3711
3712	return VINF_SUCCESS;
3713	}
3714
3715	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3716	{
3717	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3718	AssertReturn(pState, VERR_NO_MEMORY);
3719
3720	Log(("vmsvga3dSetZRange cid=%u min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3721
3722	PVMSVGA3DCONTEXT pContext;
3723	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3724	AssertRCReturn(rc, rc);
3725
3726	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3727
3728	pContext->state.zRange = zRange;
3729	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3730
3731	if (zRange.min < -1.0)
3732	zRange.min = -1.0;
3733	if (zRange.max > 1.0)
3734	zRange.max = 1.0;
3735
3736	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3737	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3738	return VINF_SUCCESS;
3739	}
3740
3741	/**
3742	* Convert SVGA blend op value to its OpenGL equivalent
3743	*/
3744	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3745	{
3746	switch (blendOp)
3747	{
3748	case SVGA3D_BLENDOP_ZERO:
3749	return GL_ZERO;
3750	case SVGA3D_BLENDOP_ONE:
3751	return GL_ONE;
3752	case SVGA3D_BLENDOP_SRCCOLOR:
3753	return GL_SRC_COLOR;
3754	case SVGA3D_BLENDOP_INVSRCCOLOR:
3755	return GL_ONE_MINUS_SRC_COLOR;
3756	case SVGA3D_BLENDOP_SRCALPHA:
3757	return GL_SRC_ALPHA;
3758	case SVGA3D_BLENDOP_INVSRCALPHA:
3759	return GL_ONE_MINUS_SRC_ALPHA;
3760	case SVGA3D_BLENDOP_DESTALPHA:
3761	return GL_DST_ALPHA;
3762	case SVGA3D_BLENDOP_INVDESTALPHA:
3763	return GL_ONE_MINUS_DST_ALPHA;
3764	case SVGA3D_BLENDOP_DESTCOLOR:
3765	return GL_DST_COLOR;
3766	case SVGA3D_BLENDOP_INVDESTCOLOR:
3767	return GL_ONE_MINUS_DST_COLOR;
3768	case SVGA3D_BLENDOP_SRCALPHASAT:
3769	return GL_SRC_ALPHA_SATURATE;
3770	case SVGA3D_BLENDOP_BLENDFACTOR:
3771	return GL_CONSTANT_COLOR;
3772	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3773	return GL_ONE_MINUS_CONSTANT_COLOR;
3774	default:
3775	AssertFailed();
3776	return GL_ONE;
3777	}
3778	}
3779
3780	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3781	{
3782	switch (blendEq)
3783	{
3784	case SVGA3D_BLENDEQ_ADD:
3785	return GL_FUNC_ADD;
3786	case SVGA3D_BLENDEQ_SUBTRACT:
3787	return GL_FUNC_SUBTRACT;
3788	case SVGA3D_BLENDEQ_REVSUBTRACT:
3789	return GL_FUNC_REVERSE_SUBTRACT;
3790	case SVGA3D_BLENDEQ_MINIMUM:
3791	return GL_MIN;
3792	case SVGA3D_BLENDEQ_MAXIMUM:
3793	return GL_MAX;
3794	default:
3795	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3796	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3797	return GL_FUNC_ADD;
3798	}
3799	}
3800
3801	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3802	{
3803	switch (cmpFunc)
3804	{
3805	case SVGA3D_CMP_NEVER:
3806	return GL_NEVER;
3807	case SVGA3D_CMP_LESS:
3808	return GL_LESS;
3809	case SVGA3D_CMP_EQUAL:
3810	return GL_EQUAL;
3811	case SVGA3D_CMP_LESSEQUAL:
3812	return GL_LEQUAL;
3813	case SVGA3D_CMP_GREATER:
3814	return GL_GREATER;
3815	case SVGA3D_CMP_NOTEQUAL:
3816	return GL_NOTEQUAL;
3817	case SVGA3D_CMP_GREATEREQUAL:
3818	return GL_GEQUAL;
3819	case SVGA3D_CMP_ALWAYS:
3820	return GL_ALWAYS;
3821	default:
3822	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3823	return GL_LESS;
3824	}
3825	}
3826
3827	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3828	{
3829	switch (stencilOp)
3830	{
3831	case SVGA3D_STENCILOP_KEEP:
3832	return GL_KEEP;
3833	case SVGA3D_STENCILOP_ZERO:
3834	return GL_ZERO;
3835	case SVGA3D_STENCILOP_REPLACE:
3836	return GL_REPLACE;
3837	case SVGA3D_STENCILOP_INCRSAT:
3838	return GL_INCR_WRAP;
3839	case SVGA3D_STENCILOP_DECRSAT:
3840	return GL_DECR_WRAP;
3841	case SVGA3D_STENCILOP_INVERT:
3842	return GL_INVERT;
3843	case SVGA3D_STENCILOP_INCR:
3844	return GL_INCR;
3845	case SVGA3D_STENCILOP_DECR:
3846	return GL_DECR;
3847	default:
3848	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3849	return GL_KEEP;
3850	}
3851	}
3852
3853	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3854	{
3855	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3856	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3857	AssertReturn(pState, VERR_NO_MEMORY);
3858
3859	Log(("vmsvga3dSetRenderState cid=%u cRenderStates=%d\n", cid, cRenderStates));
3860
3861	PVMSVGA3DCONTEXT pContext;
3862	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3863	AssertRCReturn(rc, rc);
3864
3865	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3866
3867	for (unsigned i = 0; i < cRenderStates; i++)
3868	{
3869	GLenum enableCap = ~(GLenum)0;
3870	Log(("vmsvga3dSetRenderState: cid=%u state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3871	/* Save the render state for vm state saving. */
3872	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
3873	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3874
3875	switch (pRenderState[i].state)
3876	{
3877	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3878	enableCap = GL_DEPTH_TEST;
3879	val = pRenderState[i].uintValue;
3880	break;
3881
3882	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3883	glDepthMask(!!pRenderState[i].uintValue);
3884	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3885	break;
3886
3887	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3888	enableCap = GL_ALPHA_TEST;
3889	val = pRenderState[i].uintValue;
3890	break;
3891
3892	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3893	enableCap = GL_DITHER;
3894	val = pRenderState[i].uintValue;
3895	break;
3896
3897	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3898	enableCap = GL_FOG;
3899	val = pRenderState[i].uintValue;
3900	break;
3901
3902	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3903	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3904	break;
3905
3906	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3907	enableCap = GL_LIGHTING;
3908	val = pRenderState[i].uintValue;
3909	break;
3910
3911	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3912	/* not applicable */
3913	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3914	break;
3915
3916	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3917	enableCap = GL_POINT_SPRITE_ARB;
3918	val = pRenderState[i].uintValue;
3919	break;
3920
3921	case SVGA3D_RS_POINTSIZE: /* float */
3922	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3923	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3924	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3925	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3926	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3927
3928	glPointSize(pRenderState[i].floatValue);
3929	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3930	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3931	break;
3932
3933	case SVGA3D_RS_POINTSIZEMIN: /* float */
3934	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3935	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3936	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3937	break;
3938
3939	case SVGA3D_RS_POINTSIZEMAX: /* float */
3940	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3942	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3943	break;
3944
3945	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3946	case SVGA3D_RS_POINTSCALE_A: /* float */
3947	case SVGA3D_RS_POINTSCALE_B: /* float */
3948	case SVGA3D_RS_POINTSCALE_C: /* float */
3949	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3950	break;
3951
3952	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3953	{
3954	GLfloat color[4]; /* red, green, blue, alpha */
3955
3956	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3957
3958	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3959	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3960	break;
3961	}
3962
3963	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3964	{
3965	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3966	for (uint32_t j = 0; j <= 5; j++)
3967	{
3968	if (pRenderState[i].uintValue & RT_BIT(j))
3969	glEnable(GL_CLIP_PLANE0 + j);
3970	else
3971	glDisable(GL_CLIP_PLANE0 + j);
3972	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3973	}
3974	break;
3975	}
3976
3977	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3978	{
3979	GLfloat color[4]; /* red, green, blue, alpha */
3980
3981	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3982
3983	glFogfv(GL_FOG_COLOR, color);
3984	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3985	break;
3986	}
3987
3988	case SVGA3D_RS_FOGSTART: /* float */
3989	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3991	break;
3992
3993	case SVGA3D_RS_FOGEND: /* float */
3994	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3996	break;
3997
3998	case SVGA3D_RS_FOGDENSITY: /* float */
3999	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4001	break;
4002
4003	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4004	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4005	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4006	break;
4007
4008	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4009	{
4010	SVGA3dFogMode mode;
4011	mode.uintValue = pRenderState[i].uintValue;
4012
4013	enableCap = GL_FOG_MODE;
4014	switch (mode.s.function)
4015	{
4016	case SVGA3D_FOGFUNC_EXP:
4017	val = GL_EXP;
4018	break;
4019	case SVGA3D_FOGFUNC_EXP2:
4020	val = GL_EXP2;
4021	break;
4022	case SVGA3D_FOGFUNC_LINEAR:
4023	val = GL_LINEAR;
4024	break;
4025	default:
4026	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4027	break;
4028	}
4029
4030	/** @todo how to switch between vertex and pixel fog modes??? */
4031	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4032	#if 0
4033	/* The fog type determines the render state. */
4034	switch (mode.s.type)
4035	{
4036	case SVGA3D_FOGTYPE_VERTEX:
4037	renderState = D3DRS_FOGVERTEXMODE;
4038	break;
4039	case SVGA3D_FOGTYPE_PIXEL:
4040	renderState = D3DRS_FOGTABLEMODE;
4041	break;
4042	default:
4043	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4044	break;
4045	}
4046	#endif
4047
4048	/* Set the fog base to depth or range. */
4049	switch (mode.s.base)
4050	{
4051	case SVGA3D_FOGBASE_DEPTHBASED:
4052	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4053	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4054	break;
4055	case SVGA3D_FOGBASE_RANGEBASED:
4056	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4057	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4058	break;
4059	default:
4060	/* ignore */
4061	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4062	break;
4063	}
4064	break;
4065	}
4066
4067	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4068	{
4069	SVGA3dFillMode mode;
4070
4071	mode.uintValue = pRenderState[i].uintValue;
4072
4073	switch (mode.s.mode)
4074	{
4075	case SVGA3D_FILLMODE_POINT:
4076	val = GL_POINT;
4077	break;
4078	case SVGA3D_FILLMODE_LINE:
4079	val = GL_LINE;
4080	break;
4081	case SVGA3D_FILLMODE_FILL:
4082	val = GL_FILL;
4083	break;
4084	default:
4085	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4086	break;
4087	}
4088	/* @note only front and back faces */
4089	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4090	glPolygonMode(GL_FRONT_AND_BACK, val);
4091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4092	break;
4093	}
4094
4095	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4096	switch (pRenderState[i].uintValue)
4097	{
4098	case SVGA3D_SHADEMODE_FLAT:
4099	val = GL_FLAT;
4100	break;
4101
4102	case SVGA3D_SHADEMODE_SMOOTH:
4103	val = GL_SMOOTH;
4104	break;
4105
4106	default:
4107	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4108	break;
4109	}
4110
4111	glShadeModel(val);
4112	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4113	break;
4114
4115	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4116	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4117	/** @todo */
4118	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4119	/*
4120	renderState = D3DRS_LINEPATTERN;
4121	val = pRenderState[i].uintValue;
4122	*/
4123	break;
4124
4125	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4126	enableCap = GL_LINE_SMOOTH;
4127	val = pRenderState[i].uintValue;
4128	break;
4129
4130	case SVGA3D_RS_LINEWIDTH: /* float */
4131	glLineWidth(pRenderState[i].floatValue);
4132	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4133	break;
4134
4135	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4136	{
4137	/* Refresh the blending state based on the new enable setting.
4138	* This will take existing states and set them using either glBlend* or glBlend*Separate.
4139	*/
4140	static SVGA3dRenderStateName const saRefreshState[] =
4141	{
4142	SVGA3D_RS_SRCBLEND,
4143	SVGA3D_RS_BLENDEQUATION
4144	};
4145	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4146	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4147	{
4148	renderstate[j].state = saRefreshState[j];
4149	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4150	}
4151
4152	rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4153	AssertRCReturn(rc, rc);
4154
4155	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4156	continue; /* Ignore if blend is enabled */
4157	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4158	} RT_FALL_THRU();
4159
4160	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4161	enableCap = GL_BLEND;
4162	val = pRenderState[i].uintValue;
4163	break;
4164
4165	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4166	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4167	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4168	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4169	{
4170	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4171	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4172
4173	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4174	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4175	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4176	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4177	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4179	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4181
4182	switch (pRenderState[i].state)
4183	{
4184	case SVGA3D_RS_SRCBLEND:
4185	srcRGB = blendop;
4186	break;
4187	case SVGA3D_RS_DSTBLEND:
4188	dstRGB = blendop;
4189	break;
4190	case SVGA3D_RS_SRCBLENDALPHA:
4191	srcAlpha = blendop;
4192	break;
4193	case SVGA3D_RS_DSTBLENDALPHA:
4194	dstAlpha = blendop;
4195	break;
4196	default:
4197	/* not possible; shut up gcc */
4198	AssertFailed();
4199	break;
4200	}
4201
4202	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4203	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4204	else
4205	glBlendFunc(srcRGB, dstRGB);
4206	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4207	break;
4208	}
4209
4210	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4211	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4212	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4213	{
4214	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4215	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4216	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4217	}
4218	else
4219	{
4220	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4221	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4222	#else
4223	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4224	#endif
4225	}
4226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4227	break;
4228
4229	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4230	{
4231	GLfloat red, green, blue, alpha;
4232
4233	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4234
4235	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4236	glBlendColor(red, green, blue, alpha);
4237	#else
4238	pState->ext.glBlendColor(red, green, blue, alpha);
4239	#endif
4240	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4241	break;
4242	}
4243
4244	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4245	{
4246	GLenum mode = GL_BACK; /* default for OpenGL */
4247
4248	switch (pRenderState[i].uintValue)
4249	{
4250	case SVGA3D_FACE_NONE:
4251	break;
4252	case SVGA3D_FACE_FRONT:
4253	mode = GL_FRONT;
4254	break;
4255	case SVGA3D_FACE_BACK:
4256	mode = GL_BACK;
4257	break;
4258	case SVGA3D_FACE_FRONT_BACK:
4259	mode = GL_FRONT_AND_BACK;
4260	break;
4261	default:
4262	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4263	break;
4264	}
4265	enableCap = GL_CULL_FACE;
4266	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4267	{
4268	glCullFace(mode);
4269	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4270	val = 1;
4271	}
4272	else
4273	val = 0;
4274	break;
4275	}
4276
4277	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4278	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4279	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4280	break;
4281
4282	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4283	{
4284	GLclampf ref;
4285
4286	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4287	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4288	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4289	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4290	break;
4291	}
4292
4293	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4294	{
4295	GLint func;
4296
4297	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4298	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4299	glAlphaFunc(func, pRenderState[i].floatValue);
4300	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4301	break;
4302	}
4303
4304	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4305	{
4306	/* Refresh the stencil state based on the new enable setting.
4307	* This will take existing states and set them using either glStencil or glStencil*Separate.
4308	*/
4309	static SVGA3dRenderStateName const saRefreshState[] =
4310	{
4311	SVGA3D_RS_STENCILFUNC,
4312	SVGA3D_RS_STENCILFAIL,
4313	SVGA3D_RS_CCWSTENCILFUNC,
4314	SVGA3D_RS_CCWSTENCILFAIL
4315	};
4316	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4317	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4318	{
4319	renderstate[j].state = saRefreshState[j];
4320	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4321	}
4322
4323	rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4324	AssertRCReturn(rc, rc);
4325
4326	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4327	continue; /* Ignore if stencil is enabled */
4328	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4329	} RT_FALL_THRU();
4330
4331	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4332	enableCap = GL_STENCIL_TEST;
4333	val = pRenderState[i].uintValue;
4334	break;
4335
4336	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4337	case SVGA3D_RS_STENCILREF: /* uint32_t */
4338	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4339	{
4340	GLint func, ref;
4341	GLuint mask;
4342
4343	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4344	glGetIntegerv(GL_STENCIL_FUNC, &func);
4345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4346	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4347	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4348	glGetIntegerv(GL_STENCIL_REF, &ref);
4349	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4350
4351	/* Update the changed value. */
4352	switch (pRenderState[i].state)
4353	{
4354	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4355	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4356	break;
4357
4358	case SVGA3D_RS_STENCILREF: /* uint32_t */
4359	ref = pRenderState[i].uintValue;
4360	break;
4361
4362	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4363	mask = pRenderState[i].uintValue;
4364	break;
4365
4366	default:
4367	/* not possible; shut up gcc */
4368	AssertFailed();
4369	break;
4370	}
4371
4372	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4373	{
4374	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4375	}
4376	else
4377	{
4378	glStencilFunc(func, ref, mask);
4379	}
4380	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4381	break;
4382	}
4383
4384	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4385	glStencilMask(pRenderState[i].uintValue);
4386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4387	break;
4388
4389	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4390	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4391	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4392	{
4393	GLint sfail, dpfail, dppass;
4394	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4395
4396	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4397	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4398	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4399	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4400	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4401	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4402
4403	switch (pRenderState[i].state)
4404	{
4405	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4406	sfail = stencilop;
4407	break;
4408	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4409	dpfail = stencilop;
4410	break;
4411	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4412	dppass = stencilop;
4413	break;
4414	default:
4415	/* not possible; shut up gcc */
4416	AssertFailed();
4417	break;
4418	}
4419	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4420	{
4421	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4422	}
4423	else
4424	{
4425	glStencilOp(sfail, dpfail, dppass);
4426	}
4427	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4428	break;
4429	}
4430
4431	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4432	{
4433	GLint ref;
4434	GLuint mask;
4435	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4436
4437	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4438	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4439	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4440	glGetIntegerv(GL_STENCIL_REF, &ref);
4441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4442
4443	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4444	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4445	break;
4446	}
4447
4448	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4449	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4450	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4451	{
4452	GLint sfail, dpfail, dppass;
4453	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4454
4455	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4456	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4457	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4458	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4459	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4460	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4461
4462	switch (pRenderState[i].state)
4463	{
4464	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4465	sfail = stencilop;
4466	break;
4467	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4468	dpfail = stencilop;
4469	break;
4470	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4471	dppass = stencilop;
4472	break;
4473	default:
4474	/* not possible; shut up gcc */
4475	AssertFailed();
4476	break;
4477	}
4478	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4479	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4480	break;
4481	}
4482
4483	case SVGA3D_RS_ZBIAS: /* float */
4484	/** @todo unknown meaning; depth bias is not identical
4485	renderState = D3DRS_DEPTHBIAS;
4486	val = pRenderState[i].uintValue;
4487	*/
4488	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4489	break;
4490
4491	case SVGA3D_RS_DEPTHBIAS: /* float */
4492	{
4493	GLfloat factor;
4494
4495	/** @todo not sure if the d3d & ogl definitions are identical. */
4496
4497	/* Do not change the factor part. */
4498	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4500
4501	glPolygonOffset(factor, pRenderState[i].floatValue);
4502	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4503	break;
4504	}
4505
4506	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4507	{
4508	GLfloat units;
4509
4510	/** @todo not sure if the d3d & ogl definitions are identical. */
4511
4512	/* Do not change the factor part. */
4513	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4514	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4515
4516	glPolygonOffset(pRenderState[i].floatValue, units);
4517	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4518	break;
4519	}
4520
4521	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4522	{
4523	GLboolean red, green, blue, alpha;
4524	SVGA3dColorMask mask;
4525
4526	mask.uintValue = pRenderState[i].uintValue;
4527
4528	red = mask.s.red;
4529	green = mask.s.green;
4530	blue = mask.s.blue;
4531	alpha = mask.s.alpha;
4532
4533	glColorMask(red, green, blue, alpha);
4534	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4535	break;
4536	}
4537
4538	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4539	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4540	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4541	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4542	break;
4543
4544	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4545	enableCap = GL_SCISSOR_TEST;
4546	val = pRenderState[i].uintValue;
4547	break;
4548
4549	#if 0
4550	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4551	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4552	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4553	val = pRenderState[i].uintValue;
4554	break;
4555
4556	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4557	renderState = D3DRS_SPECULARMATERIALSOURCE;
4558	val = pRenderState[i].uintValue;
4559	break;
4560
4561	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4562	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4563	val = pRenderState[i].uintValue;
4564	break;
4565
4566	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4567	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4568	val = pRenderState[i].uintValue;
4569	break;
4570	#endif
4571
4572	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4573	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4574	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4575	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4576	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4577	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4578	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4579	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4580	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4581	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4582	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4583	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4584	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4585	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4586	break;
4587
4588	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4589	case SVGA3D_RS_TWEENFACTOR: /* float */
4590	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4591	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4592	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4593	break;
4594
4595	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4596	enableCap = GL_MULTISAMPLE;
4597	val = pRenderState[i].uintValue;
4598	break;
4599
4600	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4601	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4602	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4603	break;
4604
4605	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4606	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4607	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4608	/*
4609	renderState = D3DRS_COORDINATETYPE;
4610	val = pRenderState[i].uintValue;
4611	*/
4612	break;
4613
4614	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4615	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4616	/* Invert the selected mode because of y-inversion (?) */
4617	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4618	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4619	break;
4620
4621	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4622	//AssertFailed();
4623	/*
4624	D3DRS_SRGBWRITEENABLE ??
4625	renderState = D3DRS_OUTPUTGAMMA;
4626	val = pRenderState[i].uintValue;
4627	*/
4628	break;
4629
4630	#if 0
4631
4632	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4633	//AssertFailed();
4634	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4635	val = pRenderState[i].uintValue;
4636	break;
4637
4638	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4639	renderState = D3DRS_TEXTUREFACTOR;
4640	val = pRenderState[i].uintValue;
4641	break;
4642
4643	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4644	renderState = D3DRS_LOCALVIEWER;
4645	val = pRenderState[i].uintValue;
4646	break;
4647
4648	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4649	AssertFailed();
4650	/*
4651	renderState = D3DRS_ZVISIBLE;
4652	val = pRenderState[i].uintValue;
4653	*/
4654	break;
4655
4656	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4657	renderState = D3DRS_CLIPPING;
4658	val = pRenderState[i].uintValue;
4659	break;
4660
4661	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4662	glTexParameter GL_TEXTURE_WRAP_S
4663	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4664	renderState = D3DRS_WRAP0;
4665	val = pRenderState[i].uintValue;
4666	break;
4667
4668	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4669	glTexParameter GL_TEXTURE_WRAP_T
4670	renderState = D3DRS_WRAP1;
4671	val = pRenderState[i].uintValue;
4672	break;
4673
4674	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4675	glTexParameter GL_TEXTURE_WRAP_R
4676	renderState = D3DRS_WRAP2;
4677	val = pRenderState[i].uintValue;
4678	break;
4679
4680
4681	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4682	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4683	val = pRenderState[i].uintValue;
4684	break;
4685
4686
4687	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4688	renderState = D3DRS_BLENDOPALPHA;
4689	val = pRenderState[i].uintValue;
4690	break;
4691
4692	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4693	AssertFailed();
4694	/*
4695	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4696	val = pRenderState[i].uintValue;
4697	*/
4698	break;
4699
4700	#endif
4701	default:
4702	AssertFailed();
4703	break;
4704	}
4705
4706	if (enableCap != ~(GLenum)0)
4707	{
4708	if (val)
4709	glEnable(enableCap);
4710	else
4711	glDisable(enableCap);
4712	}
4713	}
4714
4715	return VINF_SUCCESS;
4716	}
4717
4718	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4719	{
4720	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4721
4722	AssertReturn(pState, VERR_NO_MEMORY);
4723	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4724
4725	LogFunc(("cid=%u type=%x sid=%u\n", cid, type, target.sid));
4726
4727	PVMSVGA3DCONTEXT pContext;
4728	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4729	AssertRCReturn(rc, rc);
4730
4731	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4732
4733	/* Save for vm state save/restore. */
4734	pContext->state.aRenderTargets[type] = target.sid;
4735
4736	if (target.sid == SVGA3D_INVALID_ID)
4737	{
4738	/* Disable render target. */
4739	switch (type)
4740	{
4741	case SVGA3D_RT_DEPTH:
4742	case SVGA3D_RT_STENCIL:
4743	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4744	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4745	break;
4746
4747	case SVGA3D_RT_COLOR0:
4748	case SVGA3D_RT_COLOR1:
4749	case SVGA3D_RT_COLOR2:
4750	case SVGA3D_RT_COLOR3:
4751	case SVGA3D_RT_COLOR4:
4752	case SVGA3D_RT_COLOR5:
4753	case SVGA3D_RT_COLOR6:
4754	case SVGA3D_RT_COLOR7:
4755	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4756	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4757	break;
4758
4759	default:
4760	AssertFailedReturn(VERR_INVALID_PARAMETER);
4761	}
4762	return VINF_SUCCESS;
4763	}
4764
4765	PVMSVGA3DSURFACE pRenderTarget;
4766	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
4767	AssertRCReturn(rc, rc);
4768
4769	switch (type)
4770	{
4771	case SVGA3D_RT_DEPTH:
4772	case SVGA3D_RT_STENCIL:
4773	#if 1
4774	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4775	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4776	{
4777	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4778	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4779	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4780	AssertRCReturn(rc, rc);
4781	}
4782
4783	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4784	Assert(!pRenderTarget->fDirty);
4785
4786	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4787
4788	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4789	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4790	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4792	#else
4793	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4794	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4795	{
4796	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4797	pContext = &pState->SharedCtx;
4798	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4799
4800	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4801	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4802	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
4803
4804	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4805	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4806
4807	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4808	pRenderTarget->internalFormatGL,
4809	pRenderTarget->paMipmapLevels[0].mipmapSize.width,
4810	pRenderTarget->paMipmapLevels[0].mipmapSize.height);
4811	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4812
4813	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4814	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4815
4816	pContext = pState->papContexts[cid];
4817	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4818	pRenderTarget->idWeakContextAssociation = cid;
4819	}
4820
4821	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4822	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4823	Assert(!pRenderTarget->fDirty);
4824	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4825
4826	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4827
4828	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4829	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4830	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4831	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4832	#endif
4833	break;
4834
4835	case SVGA3D_RT_COLOR0:
4836	case SVGA3D_RT_COLOR1:
4837	case SVGA3D_RT_COLOR2:
4838	case SVGA3D_RT_COLOR3:
4839	case SVGA3D_RT_COLOR4:
4840	case SVGA3D_RT_COLOR5:
4841	case SVGA3D_RT_COLOR6:
4842	case SVGA3D_RT_COLOR7:
4843	{
4844	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4845	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4846	{
4847	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));
4848	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4849	AssertRCReturn(rc, rc);
4850	}
4851
4852	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4853	Assert(!pRenderTarget->fDirty);
4854
4855	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4856
4857	GLenum textarget;
4858	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4859	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4860	else
4861	textarget = GL_TEXTURE_2D;
4862	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4863	textarget, pRenderTarget->oglId.texture, target.mipmap);
4864	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4865
4866	#ifdef DEBUG
4867	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4868	if (status != GL_FRAMEBUFFER_COMPLETE)
4869	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4870	#endif
4871	/** @todo use glDrawBuffers too? */
4872	break;
4873	}
4874
4875	default:
4876	AssertFailedReturn(VERR_INVALID_PARAMETER);
4877	}
4878
4879	return VINF_SUCCESS;
4880	}
4881
4882	#if 0
4883	/**
4884	* Convert SVGA texture combiner value to its D3D equivalent
4885	*/
4886	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4887	{
4888	switch (value)
4889	{
4890	case SVGA3D_TC_DISABLE:
4891	return D3DTOP_DISABLE;
4892	case SVGA3D_TC_SELECTARG1:
4893	return D3DTOP_SELECTARG1;
4894	case SVGA3D_TC_SELECTARG2:
4895	return D3DTOP_SELECTARG2;
4896	case SVGA3D_TC_MODULATE:
4897	return D3DTOP_MODULATE;
4898	case SVGA3D_TC_ADD:
4899	return D3DTOP_ADD;
4900	case SVGA3D_TC_ADDSIGNED:
4901	return D3DTOP_ADDSIGNED;
4902	case SVGA3D_TC_SUBTRACT:
4903	return D3DTOP_SUBTRACT;
4904	case SVGA3D_TC_BLENDTEXTUREALPHA:
4905	return D3DTOP_BLENDTEXTUREALPHA;
4906	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4907	return D3DTOP_BLENDDIFFUSEALPHA;
4908	case SVGA3D_TC_BLENDCURRENTALPHA:
4909	return D3DTOP_BLENDCURRENTALPHA;
4910	case SVGA3D_TC_BLENDFACTORALPHA:
4911	return D3DTOP_BLENDFACTORALPHA;
4912	case SVGA3D_TC_MODULATE2X:
4913	return D3DTOP_MODULATE2X;
4914	case SVGA3D_TC_MODULATE4X:
4915	return D3DTOP_MODULATE4X;
4916	case SVGA3D_TC_DSDT:
4917	AssertFailed(); /** @todo ??? */
4918	return D3DTOP_DISABLE;
4919	case SVGA3D_TC_DOTPRODUCT3:
4920	return D3DTOP_DOTPRODUCT3;
4921	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4922	return D3DTOP_BLENDTEXTUREALPHAPM;
4923	case SVGA3D_TC_ADDSIGNED2X:
4924	return D3DTOP_ADDSIGNED2X;
4925	case SVGA3D_TC_ADDSMOOTH:
4926	return D3DTOP_ADDSMOOTH;
4927	case SVGA3D_TC_PREMODULATE:
4928	return D3DTOP_PREMODULATE;
4929	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4930	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4931	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4932	return D3DTOP_MODULATECOLOR_ADDALPHA;
4933	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4934	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4935	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4936	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4937	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4938	return D3DTOP_BUMPENVMAPLUMINANCE;
4939	case SVGA3D_TC_MULTIPLYADD:
4940	return D3DTOP_MULTIPLYADD;
4941	case SVGA3D_TC_LERP:
4942	return D3DTOP_LERP;
4943	default:
4944	AssertFailed();
4945	return D3DTOP_DISABLE;
4946	}
4947	}
4948
4949	/**
4950	* Convert SVGA texture arg data value to its D3D equivalent
4951	*/
4952	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4953	{
4954	switch (value)
4955	{
4956	case SVGA3D_TA_CONSTANT:
4957	return D3DTA_CONSTANT;
4958	case SVGA3D_TA_PREVIOUS:
4959	return D3DTA_CURRENT; /* current = previous */
4960	case SVGA3D_TA_DIFFUSE:
4961	return D3DTA_DIFFUSE;
4962	case SVGA3D_TA_TEXTURE:
4963	return D3DTA_TEXTURE;
4964	case SVGA3D_TA_SPECULAR:
4965	return D3DTA_SPECULAR;
4966	default:
4967	AssertFailed();
4968	return 0;
4969	}
4970	}
4971
4972	/**
4973	* Convert SVGA texture transform flag value to its D3D equivalent
4974	*/
4975	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4976	{
4977	switch (value)
4978	{
4979	case SVGA3D_TEX_TRANSFORM_OFF:
4980	return D3DTTFF_DISABLE;
4981	case SVGA3D_TEX_TRANSFORM_S:
4982	return D3DTTFF_COUNT1; /** @todo correct? */
4983	case SVGA3D_TEX_TRANSFORM_T:
4984	return D3DTTFF_COUNT2; /** @todo correct? */
4985	case SVGA3D_TEX_TRANSFORM_R:
4986	return D3DTTFF_COUNT3; /** @todo correct? */
4987	case SVGA3D_TEX_TRANSFORM_Q:
4988	return D3DTTFF_COUNT4; /** @todo correct? */
4989	case SVGA3D_TEX_PROJECTED:
4990	return D3DTTFF_PROJECTED;
4991	default:
4992	AssertFailed();
4993	return 0;
4994	}
4995	}
4996	#endif
4997
4998	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4999	{
5000	switch (value)
5001	{
5002	case SVGA3D_TEX_ADDRESS_WRAP:
5003	return GL_REPEAT;
5004	case SVGA3D_TEX_ADDRESS_MIRROR:
5005	return GL_MIRRORED_REPEAT;
5006	case SVGA3D_TEX_ADDRESS_CLAMP:
5007	return GL_CLAMP_TO_EDGE;
5008	case SVGA3D_TEX_ADDRESS_BORDER:
5009	return GL_CLAMP_TO_BORDER;
5010	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5011	AssertFailed();
5012	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5013
5014	case SVGA3D_TEX_ADDRESS_EDGE:
5015	case SVGA3D_TEX_ADDRESS_INVALID:
5016	default:
5017	AssertFailed();
5018	return GL_REPEAT; /* default */
5019	}
5020	}
5021
5022	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5023	{
5024	switch (value)
5025	{
5026	case SVGA3D_TEX_FILTER_NONE:
5027	case SVGA3D_TEX_FILTER_LINEAR:
5028	case SVGA3D_TEX_FILTER_ANISOTROPIC: /* Anisotropic filtering is controlled by SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL */
5029	return GL_LINEAR;
5030	case SVGA3D_TEX_FILTER_NEAREST:
5031	return GL_NEAREST;
5032	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5033	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5034	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5035	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5036	default:
5037	AssertFailed();
5038	return GL_LINEAR; /* default */
5039	}
5040	}
5041
5042	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5043	{
5044	/* flip the red and blue bytes */
5045	uint8_t blue = value & 0xff;
5046	uint8_t red = (value >> 16) & 0xff;
5047	return (value & 0xff00ff00) \| red \| (blue << 16);
5048	}
5049
5050	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5051	{
5052	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5053	GLenum currentStage = ~(GLenum)0;
5054	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5055	AssertReturn(pState, VERR_NO_MEMORY);
5056
5057	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5058
5059	PVMSVGA3DCONTEXT pContext;
5060	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5061	AssertRCReturn(rc, rc);
5062
5063	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5064
5065	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
5066	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
5067
5068	for (uint32_t i = 0; i < cTextureStates; ++i)
5069	{
5070	GLenum textureType = ~(GLenum)0;
5071	#if 0
5072	GLenum samplerType = ~(GLenum)0;
5073	#endif
5074
5075	LogFunc(("cid=%u stage=%d type=%s (%x) val=%x\n",
5076	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5077
5078	/* Record the texture state for vm state saving. */
5079	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5080	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5081	{
5082	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5083	}
5084
5085	/* Activate the right texture unit for subsequent texture state changes. */
5086	if (pTextureState[i].stage != currentStage \|\| i == 0)
5087	{
5088	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5089	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5090	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5091	{
5092	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5093	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5094	currentStage = pTextureState[i].stage;
5095	}
5096	else
5097	{
5098	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5099	continue;
5100	}
5101
5102	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
5103	{
5104	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
5105	AssertRCReturn(rc, rc);
5106	}
5107	else
5108	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
5109	}
5110
5111	switch (pTextureState[i].name)
5112	{
5113	case SVGA3D_TS_BUMPENVMAT00: /* float */
5114	case SVGA3D_TS_BUMPENVMAT01: /* float */
5115	case SVGA3D_TS_BUMPENVMAT10: /* float */
5116	case SVGA3D_TS_BUMPENVMAT11: /* float */
5117	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5118	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5119	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5120	break;
5121
5122	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5123	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5124	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5125	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5126	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5127	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5128	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5129	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5130	/** @todo not used by MesaGL */
5131	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5132	break;
5133	#if 0
5134
5135	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5136	textureType = D3DTSS_TEXCOORDINDEX;
5137	val = pTextureState[i].value;
5138	break;
5139
5140	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5141	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5142	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5143	break;
5144	#endif
5145
5146	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5147	{
5148	uint32_t const sid = pTextureState[i].value;
5149
5150	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u replacing sid=%u\n",
5151	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
5152
5153	/* Only if texture actually changed. */ /// @todo needs testing.
5154	if (pContext->aSidActiveTextures[currentStage] != sid)
5155	{
5156	if (pCurrentTextureSurface)
5157	{
5158	/* Unselect the currently associated texture. */
5159	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5161
5162	if (currentStage < 8)
5163	{
5164	/* Necessary for the fixed pipeline. */
5165	glDisable(pCurrentTextureSurface->targetGL);
5166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5167	}
5168
5169	pCurrentTextureSurface = NULL;
5170	}
5171
5172	if (sid == SVGA3D_INVALID_ID)
5173	{
5174	Assert(pCurrentTextureSurface == NULL);
5175	}
5176	else
5177	{
5178	PVMSVGA3DSURFACE pSurface;
5179	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5180	AssertRCReturn(rc, rc);
5181
5182	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u (%d,%d) replacing sid=%u\n",
5183	currentStage, sid, pSurface->paMipmapLevels[0].mipmapSize.width,
5184	pSurface->paMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5185
5186	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5187	{
5188	Log(("CreateTexture (%d,%d) levels=%d\n",
5189	pSurface->paMipmapLevels[0].mipmapSize.width, pSurface->paMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5190	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5191	AssertRCReturn(rc, rc);
5192	}
5193
5194	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5195	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5196
5197	if (currentStage < 8)
5198	{
5199	/* Necessary for the fixed pipeline. */
5200	glEnable(pSurface->targetGL);
5201	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5202	}
5203
5204	/* Remember the currently active texture. */
5205	pCurrentTextureSurface = pSurface;
5206
5207	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5208	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5209	{
5210	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5211	{
5212	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5213
5214	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5215	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5216	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5217	}
5218	}
5219	}
5220
5221	pContext->aSidActiveTextures[currentStage] = sid;
5222	}
5223
5224	/* Finished; continue with the next one. */
5225	continue;
5226	}
5227
5228	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5229	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5230	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5231	break;
5232
5233	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5234	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5235	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5236	break;
5237
5238	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5239	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5240	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5241	break;
5242
5243	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5244	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5245	{
5246	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5247	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5248
5249	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5250	textureType = GL_TEXTURE_MIN_FILTER;
5251	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5252	{
5253	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5254	{
5255	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5256	val = GL_NEAREST_MIPMAP_LINEAR;
5257	else
5258	val = GL_NEAREST_MIPMAP_NEAREST;
5259	}
5260	else
5261	{
5262	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5263	val = GL_LINEAR_MIPMAP_LINEAR;
5264	else
5265	val = GL_LINEAR_MIPMAP_NEAREST;
5266	}
5267	}
5268	else
5269	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5270	break;
5271	}
5272
5273	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5274	textureType = GL_TEXTURE_MAG_FILTER;
5275	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5276	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5277	break;
5278
5279	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5280	{
5281	GLfloat color[4]; /* red, green, blue, alpha */
5282	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5283
5284	GLenum targetGL;
5285	if (pCurrentTextureSurface)
5286	targetGL = pCurrentTextureSurface->targetGL;
5287	else
5288	{
5289	/* No texture bound, assume 2D. */
5290	targetGL = GL_TEXTURE_2D;
5291	}
5292
5293	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5294	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5295	break;
5296	}
5297
5298	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5299	{
5300	GLenum targetGL;
5301	if (pCurrentTextureSurface)
5302	targetGL = pCurrentTextureSurface->targetGL;
5303	else
5304	{
5305	/* No texture bound, assume 2D. */
5306	targetGL = GL_TEXTURE_2D;
5307	}
5308
5309	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5310	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5311	break;
5312	}
5313
5314	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5315	textureType = GL_TEXTURE_BASE_LEVEL;
5316	val = pTextureState[i].value;
5317	break;
5318
5319	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5320	if (pState->caps.fTextureFilterAnisotropicSupported)
5321	{
5322	textureType = GL_TEXTURE_MAX_ANISOTROPY_EXT;
5323	val = RT_MIN((GLint)pTextureState[i].value, pState->caps.maxTextureAnisotropy);
5324	} /* otherwise ignore. */
5325	break;
5326
5327	#if 0
5328	case SVGA3D_TS_GAMMA: /* float */
5329	samplerType = D3DSAMP_SRGBTEXTURE;
5330	/* Boolean in D3D */
5331	if (pTextureState[i].floatValue == 1.0f)
5332	val = FALSE;
5333	else
5334	val = TRUE;
5335	break;
5336	#endif
5337	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5338	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5339	AssertFailed();
5340	break;
5341
5342	default:
5343	//AssertFailed();
5344	break;
5345	}
5346
5347	if (textureType != ~(GLenum)0)
5348	{
5349	GLenum targetGL;
5350	if (pCurrentTextureSurface)
5351	targetGL = pCurrentTextureSurface->targetGL;
5352	else
5353	{
5354	/* No texture bound, assume 2D. */
5355	targetGL = GL_TEXTURE_2D;
5356	}
5357
5358	switch (pTextureState[i].name)
5359	{
5360	case SVGA3D_TS_MINFILTER:
5361	case SVGA3D_TS_MAGFILTER:
5362	{
5363	if (pState->caps.fTextureFilterAnisotropicSupported)
5364	{
5365	uint32_t const anisotropyLevel = (SVGA3dTextureFilter)pTextureState[i].value == SVGA3D_TEX_FILTER_ANISOTROPIC
5366	? RT_MAX(1, pContext->state.aTextureStates[currentStage][SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL].value)
5367	: 1;
5368	glTexParameteri(targetGL, GL_TEXTURE_MAX_ANISOTROPY_EXT, RT_MIN((GLint)anisotropyLevel, pState->caps.maxTextureAnisotropy));
5369	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5370	}
5371	} break;
5372
5373	default: break;
5374	}
5375
5376	glTexParameteri(targetGL, textureType, val);
5377	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5378	}
5379	}
5380
5381	return VINF_SUCCESS;
5382	}
5383
5384	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5385	{
5386	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5387	AssertReturn(pState, VERR_NO_MEMORY);
5388
5389	LogFunc(("cid=%u face %d\n", cid, face));
5390
5391	PVMSVGA3DCONTEXT pContext;
5392	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5393	AssertRCReturn(rc, rc);
5394
5395	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5396
5397	GLenum oglFace;
5398	switch (face)
5399	{
5400	case SVGA3D_FACE_NONE:
5401	case SVGA3D_FACE_FRONT:
5402	oglFace = GL_FRONT;
5403	break;
5404
5405	case SVGA3D_FACE_BACK:
5406	oglFace = GL_BACK;
5407	break;
5408
5409	case SVGA3D_FACE_FRONT_BACK:
5410	oglFace = GL_FRONT_AND_BACK;
5411	break;
5412
5413	default:
5414	AssertFailedReturn(VERR_INVALID_PARAMETER);
5415	}
5416
5417	/* Save for vm state save/restore. */
5418	pContext->state.aMaterial[face].fValid = true;
5419	pContext->state.aMaterial[face].material = *pMaterial;
5420	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5421
5422	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5423	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5424	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5425	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5426	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5427	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5428
5429	return VINF_SUCCESS;
5430	}
5431
5432	/** @todo Move into separate library as we are using logic from Wine here. */
5433	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5434	{
5435	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5436	AssertReturn(pState, VERR_NO_MEMORY);
5437
5438	LogFunc(("vmsvga3dSetLightData cid=%u index=%d type=%d\n", cid, index, pData->type));
5439
5440	PVMSVGA3DCONTEXT pContext;
5441	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5442	AssertRCReturn(rc, rc);
5443
5444	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5445
5446	/* Store for vm state save/restore */
5447	if (index < SVGA3D_MAX_LIGHTS)
5448	{
5449	pContext->state.aLightData[index].fValidData = true;
5450	pContext->state.aLightData[index].data = *pData;
5451	}
5452	else
5453	AssertFailed();
5454
5455	if ( pData->attenuation0 < 0.0f
5456	\|\| pData->attenuation1 < 0.0f
5457	\|\| pData->attenuation2 < 0.0f)
5458	{
5459	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5460	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5461	}
5462
5463	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5464	glMatrixMode(GL_MODELVIEW);
5465	glPushMatrix();
5466	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5467
5468	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5469	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5470	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5471
5472	float QuadAttenuation;
5473	if (pData->range * pData->range >= FLT_MIN)
5474	QuadAttenuation = 1.4f / (pData->range * pData->range);
5475	else
5476	QuadAttenuation = 0.0f;
5477
5478	switch (pData->type)
5479	{
5480	case SVGA3D_LIGHTTYPE_POINT:
5481	{
5482	GLfloat position[4];
5483
5484	position[0] = pData->position[0];
5485	position[1] = pData->position[1];
5486	position[2] = pData->position[2];
5487	position[3] = 1.0f;
5488
5489	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5490	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5491
5492	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5493	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5494
5495	/* Attenuation - Are these right? guessing... */
5496	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5497	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5498
5499	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5500	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5501
5502	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5503	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5504
5505	/** @todo range */
5506	break;
5507	}
5508
5509	case SVGA3D_LIGHTTYPE_SPOT1:
5510	{
5511	GLfloat exponent;
5512	GLfloat position[4];
5513	const GLfloat pi = 4.0f * atanf(1.0f);
5514
5515	position[0] = pData->position[0];
5516	position[1] = pData->position[1];
5517	position[2] = pData->position[2];
5518	position[3] = 1.0f;
5519
5520	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5521	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5522
5523	position[0] = pData->direction[0];
5524	position[1] = pData->direction[1];
5525	position[2] = pData->direction[2];
5526	position[3] = 1.0f;
5527
5528	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5529	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5530
5531	/*
5532	* opengl-ish and d3d-ish spot lights use too different models for the
5533	* light "intensity" as a function of the angle towards the main light direction,
5534	* so we only can approximate very roughly.
5535	* however spot lights are rather rarely used in games (if ever used at all).
5536	* furthermore if still used, probably nobody pays attention to such details.
5537	*/
5538	if (pData->falloff == 0)
5539	{
5540	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5541	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5542	* will always be 1.0 for both of them, and we don't have to care for the
5543	* rest of the rather complex calculation
5544	*/
5545	exponent = 0.0f;
5546	}
5547	else
5548	{
5549	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5550	if (rho < 0.0001f)
5551	rho = 0.0001f;
5552	exponent = -0.3f/log(cos(rho/2));
5553	}
5554	if (exponent > 128.0f)
5555	exponent = 128.0f;
5556
5557	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5558	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5559
5560	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5561	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5562
5563	/* Attenuation - Are these right? guessing... */
5564	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5565	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5566
5567	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5568	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5569
5570	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5571	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5572
5573	/** @todo range */
5574	break;
5575	}
5576
5577	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5578	{
5579	GLfloat position[4];
5580
5581	position[0] = -pData->direction[0];
5582	position[1] = -pData->direction[1];
5583	position[2] = -pData->direction[2];
5584	position[3] = 0.0f;
5585
5586	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5587	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5588
5589	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5590	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5591
5592	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5593	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5594	break;
5595	}
5596
5597	case SVGA3D_LIGHTTYPE_SPOT2:
5598	default:
5599	Log(("Unsupported light type!!\n"));
5600	rc = VERR_INVALID_PARAMETER;
5601	break;
5602	}
5603
5604	/* Restore the modelview matrix */
5605	glPopMatrix();
5606
5607	return rc;
5608	}
5609
5610	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5611	{
5612	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5613	AssertReturn(pState, VERR_NO_MEMORY);
5614
5615	LogFunc(("cid=%u %d -> %d\n", cid, index, enabled));
5616
5617	PVMSVGA3DCONTEXT pContext;
5618	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5619	AssertRCReturn(rc, rc);
5620
5621	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5622
5623	/* Store for vm state save/restore */
5624	if (index < SVGA3D_MAX_LIGHTS)
5625	pContext->state.aLightData[index].fEnabled = !!enabled;
5626	else
5627	AssertFailed();
5628
5629	if (enabled)
5630	{
5631	if (index < SVGA3D_MAX_LIGHTS)
5632	{
5633	/* Load the default settings if none have been set yet. */
5634	if (!pContext->state.aLightData[index].fValidData)
5635	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5636	}
5637	glEnable(GL_LIGHT0 + index);
5638	}
5639	else
5640	glDisable(GL_LIGHT0 + index);
5641
5642	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5643	return VINF_SUCCESS;
5644	}
5645
5646	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5647	{
5648	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5649	AssertReturn(pState, VERR_NO_MEMORY);
5650
5651	Log(("vmsvga3dSetViewPort cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5652
5653	PVMSVGA3DCONTEXT pContext;
5654	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5655	AssertRCReturn(rc, rc);
5656
5657	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5658
5659	/* Save for vm state save/restore. */
5660	pContext->state.RectViewPort = *pRect;
5661	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5662
5663	/** @todo y-inversion for partial viewport coordinates? */
5664	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5666
5667	/* Reset the projection matrix as that relies on the viewport setting. */
5668	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5669	{
5670	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5671	}
5672	else
5673	{
5674	float matrix[16];
5675
5676	/* identity matrix if no matrix set. */
5677	memset(matrix, 0, sizeof(matrix));
5678	matrix[0] = 1.0;
5679	matrix[5] = 1.0;
5680	matrix[10] = 1.0;
5681	matrix[15] = 1.0;
5682	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5683	}
5684
5685	return VINF_SUCCESS;
5686	}
5687
5688	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5689	{
5690	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5691	AssertReturn(pState, VERR_NO_MEMORY);
5692	double oglPlane[4];
5693
5694	Log(("vmsvga3dSetClipPlane cid=%u %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5695	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5696
5697	PVMSVGA3DCONTEXT pContext;
5698	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5699	AssertRCReturn(rc, rc);
5700
5701	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5702
5703	/* Store for vm state save/restore. */
5704	pContext->state.aClipPlane[index].fValid = true;
5705	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5706
5707	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5708	oglPlane[0] = (double)plane[0];
5709	oglPlane[1] = (double)plane[1];
5710	oglPlane[2] = (double)plane[2];
5711	oglPlane[3] = (double)plane[3];
5712
5713	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5714	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5715
5716	return VINF_SUCCESS;
5717	}
5718
5719	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5720	{
5721	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5722	AssertReturn(pState, VERR_NO_MEMORY);
5723
5724	Log(("vmsvga3dSetScissorRect cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5725
5726	PVMSVGA3DCONTEXT pContext;
5727	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5728	AssertRCReturn(rc, rc);
5729
5730	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5731
5732	/* Store for vm state save/restore. */
5733	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5734	pContext->state.RectScissor = *pRect;
5735
5736	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5737	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5738
5739	return VINF_SUCCESS;
5740	}
5741
5742	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5743	{
5744	/* Convert byte color components to float (0-1.0) */
5745	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5746	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5747	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5748	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5749	}
5750
5751	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5752	uint32_t cRects, SVGA3dRect *pRect)
5753	{
5754	GLbitfield mask = 0;
5755	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5756	AssertReturn(pState, VERR_NO_MEMORY);
5757	GLboolean fDepthWriteEnabled = GL_FALSE;
5758
5759	Log(("vmsvga3dCommandClear cid=%u clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5760
5761	PVMSVGA3DCONTEXT pContext;
5762	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5763	AssertRCReturn(rc, rc);
5764
5765	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5766
5767	if (clearFlag & SVGA3D_CLEAR_COLOR)
5768	{
5769	GLfloat red, green, blue, alpha;
5770
5771	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5772
5773	/* Set the color clear value. */
5774	glClearColor(red, green, blue, alpha);
5775
5776	mask \|= GL_COLOR_BUFFER_BIT;
5777	}
5778	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5779	{
5780	/** @todo possibly the same problem as with glDepthMask */
5781	glClearStencil(stencil);
5782	mask \|= GL_STENCIL_BUFFER_BIT;
5783	}
5784	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5785	{
5786	glClearDepth((GLdouble)depth);
5787	mask \|= GL_DEPTH_BUFFER_BIT;
5788
5789	/* glClear will not clear the depth buffer if writing is disabled. */
5790	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5791	if (fDepthWriteEnabled == GL_FALSE)
5792	glDepthMask(GL_TRUE);
5793	}
5794
5795	if (cRects)
5796	{
5797	/* Save the current scissor test bit and scissor box. */
5798	glPushAttrib(GL_SCISSOR_BIT);
5799	glEnable(GL_SCISSOR_TEST);
5800	for (unsigned i=0; i < cRects; i++)
5801	{
5802	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));
5803	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5804	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5805	glClear(mask);
5806	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5807	}
5808	/* Restore the old scissor test bit and box */
5809	glPopAttrib();
5810	}
5811	else
5812	{
5813	glClear(mask);
5814	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5815	}
5816
5817	/* Restore depth write state. */
5818	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5819	&& fDepthWriteEnabled == GL_FALSE)
5820	glDepthMask(GL_FALSE);
5821
5822	return VINF_SUCCESS;
5823	}
5824
5825	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5826	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5827	{
5828	normalized = GL_FALSE;
5829	switch (identity.type)
5830	{
5831	case SVGA3D_DECLTYPE_FLOAT1:
5832	size = 1;
5833	type = GL_FLOAT;
5834	break;
5835	case SVGA3D_DECLTYPE_FLOAT2:
5836	size = 2;
5837	type = GL_FLOAT;
5838	break;
5839	case SVGA3D_DECLTYPE_FLOAT3:
5840	size = 3;
5841	type = GL_FLOAT;
5842	break;
5843	case SVGA3D_DECLTYPE_FLOAT4:
5844	size = 4;
5845	type = GL_FLOAT;
5846	break;
5847
5848	case SVGA3D_DECLTYPE_D3DCOLOR:
5849	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5850	type = GL_UNSIGNED_BYTE;
5851	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5852	break;
5853
5854	case SVGA3D_DECLTYPE_UBYTE4N:
5855	normalized = GL_TRUE;
5856	RT_FALL_THRU();
5857	case SVGA3D_DECLTYPE_UBYTE4:
5858	size = 4;
5859	type = GL_UNSIGNED_BYTE;
5860	break;
5861
5862	case SVGA3D_DECLTYPE_SHORT2N:
5863	normalized = GL_TRUE;
5864	RT_FALL_THRU();
5865	case SVGA3D_DECLTYPE_SHORT2:
5866	size = 2;
5867	type = GL_SHORT;
5868	break;
5869
5870	case SVGA3D_DECLTYPE_SHORT4N:
5871	normalized = GL_TRUE;
5872	RT_FALL_THRU();
5873	case SVGA3D_DECLTYPE_SHORT4:
5874	size = 4;
5875	type = GL_SHORT;
5876	break;
5877
5878	case SVGA3D_DECLTYPE_USHORT4N:
5879	normalized = GL_TRUE;
5880	size = 4;
5881	type = GL_UNSIGNED_SHORT;
5882	break;
5883
5884	case SVGA3D_DECLTYPE_USHORT2N:
5885	normalized = GL_TRUE;
5886	size = 2;
5887	type = GL_UNSIGNED_SHORT;
5888	break;
5889
5890	case SVGA3D_DECLTYPE_UDEC3:
5891	size = 3;
5892	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5893	break;
5894
5895	case SVGA3D_DECLTYPE_DEC3N:
5896	normalized = true;
5897	size = 3;
5898	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5899	break;
5900
5901	case SVGA3D_DECLTYPE_FLOAT16_2:
5902	size = 2;
5903	type = GL_HALF_FLOAT;
5904	break;
5905	case SVGA3D_DECLTYPE_FLOAT16_4:
5906	size = 4;
5907	type = GL_HALF_FLOAT;
5908	break;
5909	default:
5910	AssertFailedReturn(VERR_INVALID_PARAMETER);
5911	}
5912
5913	//pVertexElement->Method = identity.method;
5914	//pVertexElement->Usage = identity.usage;
5915
5916	return VINF_SUCCESS;
5917	}
5918
5919	/* Convert VMWare primitive type to its OpenGL equivalent. */
5920	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5921	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5922	{
5923	switch (PrimitiveType)
5924	{
5925	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5926	*pMode = GL_TRIANGLES;
5927	pcVertices = cPrimitiveCount 3;
5928	break;
5929	case SVGA3D_PRIMITIVE_POINTLIST:
5930	*pMode = GL_POINTS;
5931	*pcVertices = cPrimitiveCount;
5932	break;
5933	case SVGA3D_PRIMITIVE_LINELIST:
5934	*pMode = GL_LINES;
5935	pcVertices = cPrimitiveCount 2;
5936	break;
5937	case SVGA3D_PRIMITIVE_LINESTRIP:
5938	*pMode = GL_LINE_STRIP;
5939	*pcVertices = cPrimitiveCount + 1;
5940	break;
5941	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5942	*pMode = GL_TRIANGLE_STRIP;
5943	*pcVertices = cPrimitiveCount + 2;
5944	break;
5945	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5946	*pMode = GL_TRIANGLE_FAN;
5947	*pcVertices = cPrimitiveCount + 2;
5948	break;
5949	default:
5950	return VERR_INVALID_PARAMETER;
5951	}
5952	return VINF_SUCCESS;
5953	}
5954
5955	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5956	{
5957	int rc;
5958
5959	/* Reset the view matrix (also takes the world matrix into account). */
5960	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5961	{
5962	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5963	}
5964	else
5965	{
5966	float matrix[16];
5967
5968	/* identity matrix if no matrix set. */
5969	memset(matrix, 0, sizeof(matrix));
5970	matrix[0] = 1.0;
5971	matrix[5] = 1.0;
5972	matrix[10] = 1.0;
5973	matrix[15] = 1.0;
5974	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5975	}
5976
5977	/* Reset the projection matrix. */
5978	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5979	{
5980	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5981	}
5982	else
5983	{
5984	float matrix[16];
5985
5986	/* identity matrix if no matrix set. */
5987	memset(matrix, 0, sizeof(matrix));
5988	matrix[0] = 1.0;
5989	matrix[5] = 1.0;
5990	matrix[10] = 1.0;
5991	matrix[15] = 1.0;
5992	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5993	}
5994	AssertRC(rc);
5995	return rc;
5996	}
5997
5998	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5999	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
6000	SVGA3dVertexDecl *pVertexDecl,
6001	SVGA3dVertexDivisor const *paVertexDivisors, uint32_t cInstances)
6002	{
6003	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6004	unsigned const sidVertex = pVertexDecl[0].array.surfaceId;
6005
6006	PVMSVGA3DSURFACE pVertexSurface;
6007	int rc = vmsvga3dSurfaceFromSid(pState, sidVertex, &pVertexSurface);
6008	AssertRCReturn(rc, rc);
6009
6010	Log(("vmsvga3dDrawPrimitives: vertex surface sid=%u\n", sidVertex));
6011
6012	/* Create and/or bind the vertex buffer. */
6013	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6014	{
6015	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->paMipmapLevels[0].cbSurface));
6016	PVMSVGA3DCONTEXT pSavedCtx = pContext;
6017	pContext = &pState->SharedCtx;
6018	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6019
6020	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6022	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6023
6024	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6025	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6026
6027	Assert(pVertexSurface->fDirty);
6028	/** @todo rethink usage dynamic/static */
6029	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->paMipmapLevels[0].cbSurface, pVertexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6031
6032	pVertexSurface->paMipmapLevels[0].fDirty = false;
6033	pVertexSurface->fDirty = false;
6034
6035	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6036
6037	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6038	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6039
6040	pContext = pSavedCtx;
6041	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6042	}
6043
6044	Assert(pVertexSurface->fDirty == false);
6045	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6046	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6047
6048	/* Setup the vertex declarations. */
6049	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6050	{
6051	GLint size;
6052	GLenum type;
6053	GLboolean normalized;
6054	GLuint index = iVertexDeclBase + iVertex;
6055
6056	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));
6057
6058	rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6059	AssertRCReturn(rc, rc);
6060
6061	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6062	{
6063	/* Use numbered vertex arrays when shaders are active. */
6064	pState->ext.glEnableVertexAttribArray(index);
6065	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6066	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6067	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6069
6070	GLuint divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
6071	if (pVertexDecl[iVertex].array.stride == 0)
6072	{
6073	/* Zero stride means that the attribute pointer must not be increased.
6074	* See comment about stride in vmsvga3dDrawPrimitives.
6075	*/
6076	if (!divisor)
6077	{
6078	LogRelMax(8, ("VMSVGA: zero stride array (instancing %s %d)\n", paVertexDivisors ? "on" : "off", cInstances));
6079	AssertFailed();
6080	}
6081
6082	divisor = cInstances; /* This attrib must never advance. */
6083	}
6084	pState->ext.glVertexAttribDivisor(index, divisor);
6085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6086
6087	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6088	}
6089	else
6090	{
6091	if (pVertexDecl[iVertex].array.stride == 0)
6092	{
6093	/* Zero stride means that the attribute pointer must not be increased.
6094	* See comment about stride in vmsvga3dDrawPrimitives.
6095	*/
6096	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
6097	AssertFailed();
6098	}
6099
6100	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6101	switch (pVertexDecl[iVertex].identity.usage)
6102	{
6103	case SVGA3D_DECLUSAGE_POSITIONT:
6104	case SVGA3D_DECLUSAGE_POSITION:
6105	{
6106	glEnableClientState(GL_VERTEX_ARRAY);
6107	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6108	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6109	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6111	break;
6112	}
6113	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6114	AssertFailed();
6115	break;
6116	case SVGA3D_DECLUSAGE_BLENDINDICES:
6117	AssertFailed();
6118	break;
6119	case SVGA3D_DECLUSAGE_NORMAL:
6120	glEnableClientState(GL_NORMAL_ARRAY);
6121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6122	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6123	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6125	break;
6126	case SVGA3D_DECLUSAGE_PSIZE:
6127	AssertFailed();
6128	break;
6129	case SVGA3D_DECLUSAGE_TEXCOORD:
6130	/* Specify the affected texture unit. */
6131	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6132	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6133	#else
6134	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6135	#endif
6136	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6138	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6139	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6141	break;
6142	case SVGA3D_DECLUSAGE_TANGENT:
6143	AssertFailed();
6144	break;
6145	case SVGA3D_DECLUSAGE_BINORMAL:
6146	AssertFailed();
6147	break;
6148	case SVGA3D_DECLUSAGE_TESSFACTOR:
6149	AssertFailed();
6150	break;
6151	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6152	glEnableClientState(GL_COLOR_ARRAY);
6153	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6154	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6155	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6156	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6157	break;
6158	case SVGA3D_DECLUSAGE_FOG:
6159	glEnableClientState(GL_FOG_COORD_ARRAY);
6160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6161	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6162	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6164	break;
6165	case SVGA3D_DECLUSAGE_DEPTH:
6166	AssertFailed();
6167	break;
6168	case SVGA3D_DECLUSAGE_SAMPLE:
6169	AssertFailed();
6170	break;
6171	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6172	}
6173	}
6174
6175	#ifdef LOG_ENABLED
6176	if (pVertexDecl[iVertex].array.stride == 0)
6177	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6178	#endif
6179	}
6180
6181	return VINF_SUCCESS;
6182	}
6183
6184	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6185	{
6186	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6187
6188	/* Clean up the vertex declarations. */
6189	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6190	{
6191	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6192	{
6193	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6194	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6195	vmsvga3dResetTransformMatrices(pThis, pContext);
6196	}
6197
6198	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6199	{
6200	/* Use numbered vertex arrays when shaders are active. */
6201	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6203	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6205	}
6206	else
6207	{
6208	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6209	switch (pVertexDecl[iVertex].identity.usage)
6210	{
6211	case SVGA3D_DECLUSAGE_POSITION:
6212	case SVGA3D_DECLUSAGE_POSITIONT:
6213	glDisableClientState(GL_VERTEX_ARRAY);
6214	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6215	break;
6216	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6217	break;
6218	case SVGA3D_DECLUSAGE_BLENDINDICES:
6219	break;
6220	case SVGA3D_DECLUSAGE_NORMAL:
6221	glDisableClientState(GL_NORMAL_ARRAY);
6222	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6223	break;
6224	case SVGA3D_DECLUSAGE_PSIZE:
6225	break;
6226	case SVGA3D_DECLUSAGE_TEXCOORD:
6227	/* Specify the affected texture unit. */
6228	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6229	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6230	#else
6231	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6232	#endif
6233	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6234	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6235	break;
6236	case SVGA3D_DECLUSAGE_TANGENT:
6237	break;
6238	case SVGA3D_DECLUSAGE_BINORMAL:
6239	break;
6240	case SVGA3D_DECLUSAGE_TESSFACTOR:
6241	break;
6242	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6243	glDisableClientState(GL_COLOR_ARRAY);
6244	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6245	break;
6246	case SVGA3D_DECLUSAGE_FOG:
6247	glDisableClientState(GL_FOG_COORD_ARRAY);
6248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6249	break;
6250	case SVGA3D_DECLUSAGE_DEPTH:
6251	break;
6252	case SVGA3D_DECLUSAGE_SAMPLE:
6253	break;
6254	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6255	}
6256	}
6257	}
6258	/* Unbind the vertex buffer after usage. */
6259	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6260	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6261	return VINF_SUCCESS;
6262	}
6263
6264	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6265	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6266	SVGA3dVertexDivisor *pVertexDivisor)
6267	{
6268	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6269	AssertReturn(pState, VERR_INTERNAL_ERROR);
6270	uint32_t iCurrentVertex;
6271
6272	Log(("vmsvga3dDrawPrimitives cid=%u numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6273
6274	/* Caller already check these, but it cannot hurt to check again... */
6275	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6276	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6277	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6278
6279	if (!cVertexDivisor)
6280	pVertexDivisor = NULL; /* Be sure. */
6281
6282	PVMSVGA3DCONTEXT pContext;
6283	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6284	AssertRCReturn(rc, rc);
6285
6286	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6287
6288	/* Check for pretransformed vertex declarations. */
6289	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6290	{
6291	switch (pVertexDecl[iVertex].identity.usage)
6292	{
6293	case SVGA3D_DECLUSAGE_POSITIONT:
6294	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6295	RT_FALL_THRU();
6296	case SVGA3D_DECLUSAGE_POSITION:
6297	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6298	pContext->state.RectViewPort.h,
6299	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6300	break;
6301	default: /* Shut up MSC. */ break;
6302	}
6303	}
6304
6305	/*
6306	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6307	* - D3D and VMSVGA: "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6308	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6309	* VMSVGA uses the D3D semantics.
6310	*
6311	* In order to tell OpenGL to reuse the zero stride attributes for each vertex
6312	* such attributes could be declared as instance data, then OpenGL applies them once
6313	* for all vertices of the one drawn instance.
6314	*
6315	* If instancing is already used (cVertexDivisor > 0), then the code does nothing and assumes that
6316	* all instance data is already correctly marked as such.
6317	*
6318	* If instancing is not requisted (cVertexDivisor == 0), then the code creates a description for
6319	* one instance where all arrays with zero stride are marked as instance data, and all arrays
6320	* with non-zero stride as indexed data.
6321	*/
6322	bool fZeroStrideArray = false;
6323	if (cVertexDivisor == 0)
6324	{
6325	unsigned i;
6326	for (i = 0; i < numVertexDecls; ++i)
6327	{
6328	if (pVertexDecl[i].array.stride == 0)
6329	{
6330	fZeroStrideArray = true;
6331	break;
6332	}
6333	}
6334
6335	if (fZeroStrideArray)
6336	{
6337	cVertexDivisor = numVertexDecls;
6338	pVertexDivisor = (SVGA3dVertexDivisor )RTMemTmpAlloc(sizeof(SVGA3dVertexDivisor) cVertexDivisor);
6339	AssertPtrReturn(pVertexDivisor, VERR_NO_MEMORY);
6340
6341	for (i = 0; i < numVertexDecls; ++i)
6342	{
6343	pVertexDivisor[i].s.count = 1;
6344	if (pVertexDecl[i].array.stride == 0)
6345	{
6346	pVertexDivisor[i].s.instanceData = 1;
6347	}
6348	else
6349	{
6350	pVertexDivisor[i].s.indexedData = 1;
6351	}
6352	}
6353	}
6354	}
6355
6356	/* Try to figure out if instancing is used.
6357	* Support simple instancing case with one set of indexed data and one set per-instance data.
6358	*/
6359	uint32_t cInstances = 0;
6360	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6361	{
6362	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6363	{
6364	if (cInstances == 0)
6365	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6366	else
6367	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6368	}
6369	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6370	{
6371	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6372	}
6373	}
6374
6375	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6376	if (pContext->pShaderContext)
6377	{
6378	uint32_t rtHeight = 0;
6379
6380	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6381	{
6382	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6383	rtHeight = pRenderTarget->paMipmapLevels[0].mipmapSize.height;
6384	}
6385
6386	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6387	}
6388
6389	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6390	iCurrentVertex = 0;
6391	while (iCurrentVertex < numVertexDecls)
6392	{
6393	uint32_t sidVertex = SVGA_ID_INVALID;
6394	uint32_t iVertex;
6395
6396	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6397	{
6398	if ( sidVertex != SVGA_ID_INVALID
6399	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6400	)
6401	break;
6402	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6403	}
6404
6405	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6406	&pVertexDecl[iCurrentVertex], pVertexDivisor, cInstances);
6407	AssertRCReturn(rc, rc);
6408
6409	iCurrentVertex = iVertex;
6410	}
6411
6412	/* Now draw the primitives. */
6413	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6414	{
6415	GLenum modeDraw;
6416	unsigned const sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6417	PVMSVGA3DSURFACE pIndexSurface = NULL;
6418	unsigned cVertices;
6419
6420	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6421	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6422	if (RT_FAILURE(rc))
6423	{
6424	AssertRC(rc);
6425	goto internal_error;
6426	}
6427
6428	if (sidIndex != SVGA3D_INVALID_ID)
6429	{
6430	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6431
6432	rc = vmsvga3dSurfaceFromSid(pState, sidIndex, &pIndexSurface);
6433	if (RT_FAILURE(rc))
6434	{
6435	AssertRC(rc);
6436	goto internal_error;
6437	}
6438
6439	Log(("vmsvga3dDrawPrimitives: index surface sid=%u\n", sidIndex));
6440
6441	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6442	{
6443	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->paMipmapLevels[0].cbSurface));
6444	pContext = &pState->SharedCtx;
6445	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6446
6447	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6448	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6449	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6450
6451	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6452	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6453
6454	Assert(pIndexSurface->fDirty);
6455
6456	/** @todo rethink usage dynamic/static */
6457	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->paMipmapLevels[0].cbSurface, pIndexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6458	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6459
6460	pIndexSurface->paMipmapLevels[0].fDirty = false;
6461	pIndexSurface->fDirty = false;
6462
6463	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6464
6465	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6466	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6467
6468	pContext = pState->papContexts[cid];
6469	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6470	}
6471	Assert(pIndexSurface->fDirty == false);
6472
6473	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6474	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6475	}
6476
6477	if (!pIndexSurface)
6478	{
6479	/* Render without an index buffer */
6480	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
6481	if (cInstances == 0)
6482	{
6483	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6484	}
6485	else
6486	{
6487	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6488	}
6489	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6490	}
6491	else
6492	{
6493	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6494
6495	GLenum indexType;
6496	switch (pRange[iPrimitive].indexWidth)
6497	{
6498	case 1: indexType = GL_UNSIGNED_BYTE; break;
6499	case 2: indexType = GL_UNSIGNED_SHORT; break;
6500	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
6501	RT_FALL_THROUGH();
6502	case 4: indexType = GL_UNSIGNED_INT; break;
6503	}
6504
6505	Log(("DrawIndexedPrimitive %d cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pVertexDecl[0].rangeHint.first, pVertexDecl[0].rangeHint.last, pRange[iPrimitive].indexArray.offset, pRange[iPrimitive].primitiveCount, pRange[iPrimitive].indexWidth, pRange[iPrimitive].indexBias, cInstances));
6506	if (cInstances == 0)
6507	{
6508	/* Render with an index buffer */
6509	if (pRange[iPrimitive].indexBias == 0)
6510	glDrawElements(modeDraw,
6511	cVertices,
6512	indexType,
6513	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6514	else
6515	pState->ext.glDrawElementsBaseVertex(modeDraw,
6516	cVertices,
6517	indexType,
6518	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6519	pRange[iPrimitive].indexBias); /* basevertex */
6520	}
6521	else
6522	{
6523	/* Render with an index buffer */
6524	if (pRange[iPrimitive].indexBias == 0)
6525	pState->ext.glDrawElementsInstanced(modeDraw,
6526	cVertices,
6527	indexType,
6528	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6529	cInstances);
6530	else
6531	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6532	cVertices,
6533	indexType,
6534	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6535	cInstances,
6536	pRange[iPrimitive].indexBias); /* basevertex */
6537	}
6538	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6539
6540	/* Unbind the index buffer after usage. */
6541	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6542	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6543	}
6544	}
6545
6546	internal_error:
6547
6548	/* Deactivate the vertex declarations. */
6549	iCurrentVertex = 0;
6550	while (iCurrentVertex < numVertexDecls)
6551	{
6552	uint32_t sidVertex = SVGA_ID_INVALID;
6553	uint32_t iVertex;
6554
6555	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6556	{
6557	if ( sidVertex != SVGA_ID_INVALID
6558	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6559	)
6560	break;
6561	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6562	}
6563
6564	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6565	AssertRCReturn(rc, rc);
6566
6567	iCurrentVertex = iVertex;
6568	}
6569
6570	if (fZeroStrideArray)
6571	{
6572	RTMemTmpFree(pVertexDivisor);
6573	pVertexDivisor = NULL;
6574	}
6575
6576	#ifdef DEBUG
6577	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6578	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6579	{
6580	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6581	{
6582	PVMSVGA3DSURFACE pTexture;
6583	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6584	AssertContinue(RT_SUCCESS(rc2));
6585
6586	GLint activeTextureUnit = 0;
6587	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6588	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6589
6590	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6591	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6592
6593	GLint activeTexture = 0;
6594	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6595	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6596
6597	pState->ext.glActiveTexture(activeTextureUnit);
6598	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6599
6600	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6601	("%d vs %d unit %d (active unit %d) sid=%u\n", pTexture->oglId.texture, activeTexture, i,
6602	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6603	}
6604	}
6605	#endif
6606
6607	#if 0
6608	/* Dump render target to a bitmap. */
6609	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6610	{
6611	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6612	PVMSVGA3DSURFACE pSurface;
6613	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6614	if (RT_SUCCESS(rc2))
6615	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
6616	# if 0
6617	/* Stage 0 texture. */
6618	if (pContext->aSidActiveTextures[0] != SVGA3D_INVALID_ID)
6619	{
6620	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->aSidActiveTextures[0]);
6621	rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[0], &pSurface);
6622	if (RT_SUCCESS(rc2))
6623	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post-tx");
6624	}
6625	# endif
6626	}
6627	#endif
6628
6629	return rc;
6630	}
6631
6632
6633	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6634	{
6635	PVMSVGA3DSHADER pShader;
6636	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6637	AssertReturn(pState, VERR_NO_MEMORY);
6638
6639	Log(("vmsvga3dShaderDefine cid=%u shid=%d type=%s cbData=0x%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6640	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6641
6642	PVMSVGA3DCONTEXT pContext;
6643	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6644	AssertRCReturn(rc, rc);
6645
6646	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6647
6648	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6649	if (type == SVGA3D_SHADERTYPE_VS)
6650	{
6651	if (shid >= pContext->cVertexShaders)
6652	{
6653	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6654	AssertReturn(pvNew, VERR_NO_MEMORY);
6655	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6656	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6657	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6658	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6659	pContext->cVertexShaders = shid + 1;
6660	}
6661	/* If one already exists with this id, then destroy it now. */
6662	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6663	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6664
6665	pShader = &pContext->paVertexShader[shid];
6666	}
6667	else
6668	{
6669	Assert(type == SVGA3D_SHADERTYPE_PS);
6670	if (shid >= pContext->cPixelShaders)
6671	{
6672	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6673	AssertReturn(pvNew, VERR_NO_MEMORY);
6674	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6675	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6676	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6677	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6678	pContext->cPixelShaders = shid + 1;
6679	}
6680	/* If one already exists with this id, then destroy it now. */
6681	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6682	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6683
6684	pShader = &pContext->paPixelShader[shid];
6685	}
6686
6687	memset(pShader, 0, sizeof(*pShader));
6688	pShader->id = shid;
6689	pShader->cid = cid;
6690	pShader->type = type;
6691	pShader->cbData = cbData;
6692	pShader->pShaderProgram = RTMemAllocZ(cbData);
6693	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6694	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6695
6696	#ifdef DUMP_SHADER_DISASSEMBLY
6697	LPD3DXBUFFER pDisassembly;
6698	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6699	if (hr == D3D_OK)
6700	{
6701	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6702	pDisassembly->Release();
6703	}
6704	#endif
6705
6706	switch (type)
6707	{
6708	case SVGA3D_SHADERTYPE_VS:
6709	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6710	AssertRC(rc);
6711	break;
6712
6713	case SVGA3D_SHADERTYPE_PS:
6714	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6715	AssertRC(rc);
6716	break;
6717
6718	default:
6719	AssertFailedReturn(VERR_INVALID_PARAMETER);
6720	}
6721	if (rc != VINF_SUCCESS)
6722	{
6723	RTMemFree(pShader->pShaderProgram);
6724	memset(pShader, 0, sizeof(*pShader));
6725	pShader->id = SVGA3D_INVALID_ID;
6726	}
6727
6728	return rc;
6729	}
6730
6731	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6732	{
6733	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6734	AssertReturn(pState, VERR_NO_MEMORY);
6735	PVMSVGA3DSHADER pShader = NULL;
6736
6737	Log(("vmsvga3dShaderDestroy cid=%u shid=%d type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6738
6739	PVMSVGA3DCONTEXT pContext;
6740	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6741	AssertRCReturn(rc, rc);
6742
6743	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6744
6745	if (type == SVGA3D_SHADERTYPE_VS)
6746	{
6747	if ( shid < pContext->cVertexShaders
6748	&& pContext->paVertexShader[shid].id == shid)
6749	{
6750	pShader = &pContext->paVertexShader[shid];
6751	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6752	AssertRC(rc);
6753	}
6754	}
6755	else
6756	{
6757	Assert(type == SVGA3D_SHADERTYPE_PS);
6758	if ( shid < pContext->cPixelShaders
6759	&& pContext->paPixelShader[shid].id == shid)
6760	{
6761	pShader = &pContext->paPixelShader[shid];
6762	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6763	AssertRC(rc);
6764	}
6765	}
6766
6767	if (pShader)
6768	{
6769	if (pShader->pShaderProgram)
6770	RTMemFree(pShader->pShaderProgram);
6771	memset(pShader, 0, sizeof(*pShader));
6772	pShader->id = SVGA3D_INVALID_ID;
6773	}
6774	else
6775	AssertFailedReturn(VERR_INVALID_PARAMETER);
6776
6777	return VINF_SUCCESS;
6778	}
6779
6780	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6781	{
6782	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6783	AssertReturn(pState, VERR_NO_MEMORY);
6784	int rc;
6785
6786	Log(("vmsvga3dShaderSet cid=%u type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6787
6788	if (!pContext)
6789	{
6790	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6791	AssertRCReturn(rc, rc);
6792	}
6793
6794	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6795
6796	if (type == SVGA3D_SHADERTYPE_VS)
6797	{
6798	/* Save for vm state save/restore. */
6799	pContext->state.shidVertex = shid;
6800	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6801
6802	if ( shid < pContext->cVertexShaders
6803	&& pContext->paVertexShader[shid].id == shid)
6804	{
6805	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6806	Assert(type == pShader->type);
6807
6808	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6809	AssertRCReturn(rc, rc);
6810	}
6811	else
6812	if (shid == SVGA_ID_INVALID)
6813	{
6814	/* Unselect shader. */
6815	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6816	AssertRCReturn(rc, rc);
6817	}
6818	else
6819	AssertFailedReturn(VERR_INVALID_PARAMETER);
6820	}
6821	else
6822	{
6823	/* Save for vm state save/restore. */
6824	pContext->state.shidPixel = shid;
6825	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6826
6827	Assert(type == SVGA3D_SHADERTYPE_PS);
6828	if ( shid < pContext->cPixelShaders
6829	&& pContext->paPixelShader[shid].id == shid)
6830	{
6831	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6832	Assert(type == pShader->type);
6833
6834	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6835	AssertRCReturn(rc, rc);
6836	}
6837	else
6838	if (shid == SVGA_ID_INVALID)
6839	{
6840	/* Unselect shader. */
6841	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6842	AssertRCReturn(rc, rc);
6843	}
6844	else
6845	AssertFailedReturn(VERR_INVALID_PARAMETER);
6846	}
6847
6848	return VINF_SUCCESS;
6849	}
6850
6851	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6852	{
6853	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6854	AssertReturn(pState, VERR_NO_MEMORY);
6855
6856	Log(("vmsvga3dShaderSetConst cid=%u reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6857
6858	PVMSVGA3DCONTEXT pContext;
6859	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6860	AssertRCReturn(rc, rc);
6861
6862	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6863
6864	for (uint32_t i = 0; i < cRegisters; i++)
6865	{
6866	#ifdef LOG_ENABLED
6867	switch (ctype)
6868	{
6869	case SVGA3D_CONST_TYPE_FLOAT:
6870	{
6871	float pValuesF = (float )pValues;
6872	Log(("ConstantF %d: value=" FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR "\n",
6873	reg + i, FLOAT_FMT_ARGS(pValuesF[i4 + 0]), FLOAT_FMT_ARGS(pValuesF[i4 + 1]), FLOAT_FMT_ARGS(pValuesF[i4 + 2]), FLOAT_FMT_ARGS(pValuesF[i4 + 3])));
6874	break;
6875	}
6876
6877	case SVGA3D_CONST_TYPE_INT:
6878	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6879	break;
6880
6881	case SVGA3D_CONST_TYPE_BOOL:
6882	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6883	break;
6884	}
6885	#endif
6886	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6887	}
6888
6889	switch (type)
6890	{
6891	case SVGA3D_SHADERTYPE_VS:
6892	switch (ctype)
6893	{
6894	case SVGA3D_CONST_TYPE_FLOAT:
6895	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6896	break;
6897
6898	case SVGA3D_CONST_TYPE_INT:
6899	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6900	break;
6901
6902	case SVGA3D_CONST_TYPE_BOOL:
6903	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6904	break;
6905
6906	default:
6907	AssertFailedReturn(VERR_INVALID_PARAMETER);
6908	}
6909	AssertRCReturn(rc, rc);
6910	break;
6911
6912	case SVGA3D_SHADERTYPE_PS:
6913	switch (ctype)
6914	{
6915	case SVGA3D_CONST_TYPE_FLOAT:
6916	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6917	break;
6918
6919	case SVGA3D_CONST_TYPE_INT:
6920	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6921	break;
6922
6923	case SVGA3D_CONST_TYPE_BOOL:
6924	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6925	break;
6926
6927	default:
6928	AssertFailedReturn(VERR_INVALID_PARAMETER);
6929	}
6930	AssertRCReturn(rc, rc);
6931	break;
6932
6933	default:
6934	AssertFailedReturn(VERR_INVALID_PARAMETER);
6935	}
6936
6937	return VINF_SUCCESS;
6938	}
6939
6940	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6941	{
6942	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6943	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6944
6945	GLuint idQuery = 0;
6946	pState->ext.glGenQueries(1, &idQuery);
6947	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6948	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6949	pContext->occlusion.idQuery = idQuery;
6950	return VINF_SUCCESS;
6951	}
6952
6953	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6954	{
6955	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6956	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6957
6958	if (pContext->occlusion.idQuery)
6959	{
6960	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6961	}
6962	return VINF_SUCCESS;
6963	}
6964
6965	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6966	{
6967	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6968	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6969
6970	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6971	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6972	return VINF_SUCCESS;
6973	}
6974
6975	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6976	{
6977	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6978	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6979
6980	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6981	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6982	return VINF_SUCCESS;
6983	}
6984
6985	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6986	{
6987	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6988	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6989
6990	GLuint pixels = 0;
6991	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6992	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6993
6994	*pu32Pixels = (uint32_t)pixels;
6995	return VINF_SUCCESS;
6996	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 82109

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