DevVGA-SVGA3d-ogl.cpp@ 78218

Last change on this file since 78218 was 77114, checked in by vboxsync, 6 years ago
DevVGA-SVGA3d-ogl: remember type of created resource; CopySurface/StretchBlt fixes; vmsvga3dBackSurfaceDMACopyBox support for 3D textures; occlusion query functions should set current context.
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File size: 255.0 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 77114 2019-02-01 13:13:31Z 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
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef VMSVGA3D_DYNAMIC_LOAD
67	# define OGLGETPROCADDRESS glLdrGetProcAddress
68	#else
69	#ifdef RT_OS_WINDOWS
70	# define OGLGETPROCADDRESS MyWinGetProcAddress
71	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
72	{
73	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
74	PROC p = wglGetProcAddress(pszSymbol);
75	if (RT_VALID_PTR(p))
76	return p;
77	return 0;
78	}
79	#elif defined(RT_OS_DARWIN)
80	# include <dlfcn.h>
81	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
82	/** Resolves an OpenGL symbol. */
83	static void MyNSGLGetProcAddress(const char pszSymbol)
84	{
85	/* Another copy in shaderapi.c. */
86	static void *s_pvImage = NULL;
87	if (s_pvImage == NULL)
88	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
89	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
90	}
91
92	#else
93	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
94	#endif
95	#endif
96
97	/* Invert y-coordinate for OpenGL's bottom left origin. */
98	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
99	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
100
101	/**
102	* Macro for doing something and then checking for errors during initialization.
103	* Uses AssertLogRelMsg.
104	*/
105	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
106	do \
107	{ \
108	a_Expr; \
109	GLenum iGlError = glGetError(); \
110	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
111	} while (0)
112
113	/**
114	* Macro for doing something and then checking for errors during initialization,
115	* doing the same in the other context when enabled.
116	*
117	* This will try both profiles in dual profile builds. Caller must be in the
118	* default context.
119	*
120	* Uses AssertLogRelMsg to indicate trouble.
121	*/
122	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
123	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
124	do \
125	{ \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError = glGetError(); \
129	if (iGlError != GL_NO_ERROR) \
130	{ \
131	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
132	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
133	a_Expr; \
134	GLenum iGlError2 = glGetError(); \
135	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
136	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
137	} \
138	} while (0)
139	#else
140	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
141	#endif
142
143
144	/*********************************************************************************************************************************
145	* Global Variables *
146	*********************************************************************************************************************************/
147	/* Define the default light parameters as specified by MSDN. */
148	/** @todo move out; fetched from Wine */
149	const SVGA3dLightData vmsvga3d_default_light =
150	{
151	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
152	false, /* inWorldSpace */
153	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
154	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
156	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
157	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
158	0.0f, /* range */
159	0.0f, /* falloff */
160	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
161	0.0f, /* theta */
162	0.0f /* phi */
163	};
164
165
166	/*********************************************************************************************************************************
167	* Internal Functions *
168	*********************************************************************************************************************************/
169	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
170	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
171
172	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
173	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
174
175
176	/**
177	* Checks if the given OpenGL extension is supported.
178	*
179	* @returns true if supported, false if not.
180	* @param pState The VMSVGA3d state.
181	* @param rsMinGLVersion The OpenGL version that introduced this feature
182	* into the core.
183	* @param pszWantedExtension The name of the OpenGL extension we want padded
184	* with one space at each end.
185	* @remarks Init time only.
186	*/
187	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
188	{
189	RT_NOREF(rsMinGLVersion);
190	/* check padding. */
191	Assert(pszWantedExtension[0] == ' ');
192	Assert(pszWantedExtension[1] != ' ');
193	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
194
195	/* Look it up. */
196	bool fRet = false;
197	if (strstr(pState->pszExtensions, pszWantedExtension))
198	fRet = true;
199
200	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
201	#ifdef RT_OS_DARWIN
202	AssertMsg( rsMinGLVersion == 0.0
203	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
204	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
205	("%s actual:%d min:%d fRet=%d\n",
206	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
207	#else
208	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
209	("%s actual:%d min:%d fRet=%d\n",
210	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
211	#endif
212	return fRet;
213	}
214
215
216	/**
217	* Outputs GL_EXTENSIONS list to the release log.
218	*/
219	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
220	{
221	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
222	bool fBuffered = RTLogRelSetBuffering(true);
223
224	/*
225	* Determin the column widths first.
226	*/
227	size_t acchWidths[4] = { 1, 1, 1, 1 };
228	uint32_t i;
229	const char *psz = pszExtensions;
230	for (i = 0; ; i++)
231	{
232	while (*psz == ' ')
233	psz++;
234	if (!*psz)
235	break;
236
237	const char *pszEnd = strchr(psz, ' ');
238	AssertBreak(pszEnd);
239	size_t cch = pszEnd - psz;
240
241	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
242	if (acchWidths[iColumn] < cch)
243	acchWidths[iColumn] = cch;
244
245	psz = pszEnd;
246	}
247
248	/*
249	* Output it.
250	*/
251	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
252	psz = pszExtensions;
253	for (i = 0; ; i++)
254	{
255	while (*psz == ' ')
256	psz++;
257	if (!*psz)
258	break;
259
260	const char *pszEnd = strchr(psz, ' ');
261	AssertBreak(pszEnd);
262	size_t cch = pszEnd - psz;
263
264	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
265	if (iColumn == 0)
266	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
267	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
268	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
269	else
270	LogRel((" %.*s", cch, psz));
271
272	psz = pszEnd;
273	}
274
275	RTLogRelSetBuffering(fBuffered);
276	LogRel(("\n"));
277	}
278
279	/**
280	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
281	* @a ppszExtensions.
282	*
283	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
284	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
285	* @param fGLProfileVersion The OpenGL profile version.
286	*/
287	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
288	{
289	int rc;
290	*ppszExtensions = NULL;
291
292	/*
293	* Try the old glGetString interface first.
294	*/
295	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
296	if (pszExtensions)
297	{
298	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
299	AssertLogRelRCReturn(rc, rc);
300	}
301	else
302	{
303	/*
304	* The new interface where each extension string is retrieved separately.
305	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
306	* the above GL_EXTENSIONS error lingers on darwin. sucks.
307	*/
308	#ifndef GL_NUM_EXTENSIONS
309	# define GL_NUM_EXTENSIONS 0x821D
310	#endif
311	GLint cExtensions = 1024;
312	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
313	Assert(cExtensions != 1024);
314
315	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
316	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
317
318	rc = RTStrAAppend(ppszExtensions, " ");
319	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
320	{
321	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
322	if (pszExt)
323	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
324	}
325	AssertRCReturn(rc, rc);
326	}
327
328	#if 1
329	/*
330	* Add extensions promoted into the core OpenGL profile.
331	*/
332	static const struct
333	{
334	float fGLVersion;
335	const char *pszzExtensions;
336	} s_aPromotedExtensions[] =
337	{
338	{
339	1.1f,
340	" GL_EXT_vertex_array \0"
341	" GL_EXT_polygon_offset \0"
342	" GL_EXT_blend_logic_op \0"
343	" GL_EXT_texture \0"
344	" GL_EXT_copy_texture \0"
345	" GL_EXT_subtexture \0"
346	" GL_EXT_texture_object \0"
347	" GL_ARB_framebuffer_object \0"
348	" GL_ARB_map_buffer_range \0"
349	" GL_ARB_vertex_array_object \0"
350	"\0"
351	},
352	{
353	1.2f,
354	" EXT_texture3D \0"
355	" EXT_bgra \0"
356	" EXT_packed_pixels \0"
357	" EXT_rescale_normal \0"
358	" EXT_separate_specular_color \0"
359	" SGIS_texture_edge_clamp \0"
360	" SGIS_texture_lod \0"
361	" EXT_draw_range_elements \0"
362	"\0"
363	},
364	{
365	1.3f,
366	" GL_ARB_texture_compression \0"
367	" GL_ARB_texture_cube_map \0"
368	" GL_ARB_multisample \0"
369	" GL_ARB_multitexture \0"
370	" GL_ARB_texture_env_add \0"
371	" GL_ARB_texture_env_combine \0"
372	" GL_ARB_texture_env_dot3 \0"
373	" GL_ARB_texture_border_clamp \0"
374	" GL_ARB_transpose_matrix \0"
375	"\0"
376	},
377	{
378	1.5f,
379	" GL_SGIS_generate_mipmap \0"
380	/" GL_NV_blend_equare \0"/
381	" GL_ARB_depth_texture \0"
382	" GL_ARB_shadow \0"
383	" GL_EXT_fog_coord \0"
384	" GL_EXT_multi_draw_arrays \0"
385	" GL_ARB_point_parameters \0"
386	" GL_EXT_secondary_color \0"
387	" GL_EXT_blend_func_separate \0"
388	" GL_EXT_stencil_wrap \0"
389	" GL_ARB_texture_env_crossbar \0"
390	" GL_EXT_texture_lod_bias \0"
391	" GL_ARB_texture_mirrored_repeat \0"
392	" GL_ARB_window_pos \0"
393	"\0"
394	},
395	{
396	1.6f,
397	" GL_ARB_vertex_buffer_object \0"
398	" GL_ARB_occlusion_query \0"
399	" GL_EXT_shadow_funcs \0"
400	},
401	{
402	2.0f,
403	" GL_ARB_shader_objects \0" /??/
404	" GL_ARB_vertex_shader \0" /??/
405	" GL_ARB_fragment_shader \0" /??/
406	" GL_ARB_shading_language_100 \0" /??/
407	" GL_ARB_draw_buffers \0"
408	" GL_ARB_texture_non_power_of_two \0"
409	" GL_ARB_point_sprite \0"
410	" GL_ATI_separate_stencil \0"
411	" GL_EXT_stencil_two_side \0"
412	"\0"
413	},
414	{
415	2.1f,
416	" GL_ARB_pixel_buffer_object \0"
417	" GL_EXT_texture_sRGB \0"
418	"\0"
419	},
420	{
421	3.0f,
422	" GL_ARB_framebuffer_object \0"
423	" GL_ARB_map_buffer_range \0"
424	" GL_ARB_vertex_array_object \0"
425	"\0"
426	},
427	{
428	3.1f,
429	" GL_ARB_copy_buffer \0"
430	" GL_ARB_uniform_buffer_object \0"
431	"\0"
432	},
433	{
434	3.2f,
435	" GL_ARB_vertex_array_bgra \0"
436	" GL_ARB_draw_elements_base_vertex \0"
437	" GL_ARB_fragment_coord_conventions \0"
438	" GL_ARB_provoking_vertex \0"
439	" GL_ARB_seamless_cube_map \0"
440	" GL_ARB_texture_multisample \0"
441	" GL_ARB_depth_clamp \0"
442	" GL_ARB_sync \0"
443	" GL_ARB_geometry_shader4 \0" /??/
444	"\0"
445	},
446	{
447	3.3f,
448	" GL_ARB_blend_func_extended \0"
449	" GL_ARB_sampler_objects \0"
450	" GL_ARB_explicit_attrib_location \0"
451	" GL_ARB_occlusion_query2 \0"
452	" GL_ARB_shader_bit_encoding \0"
453	" GL_ARB_texture_rgb10_a2ui \0"
454	" GL_ARB_texture_swizzle \0"
455	" GL_ARB_timer_query \0"
456	" GL_ARB_vertex_type_2_10_10_10_rev \0"
457	"\0"
458	},
459	{
460	4.0f,
461	" GL_ARB_texture_query_lod \0"
462	" GL_ARB_draw_indirect \0"
463	" GL_ARB_gpu_shader5 \0"
464	" GL_ARB_gpu_shader_fp64 \0"
465	" GL_ARB_shader_subroutine \0"
466	" GL_ARB_tessellation_shader \0"
467	" GL_ARB_texture_buffer_object_rgb32 \0"
468	" GL_ARB_texture_cube_map_array \0"
469	" GL_ARB_texture_gather \0"
470	" GL_ARB_transform_feedback2 \0"
471	" GL_ARB_transform_feedback3 \0"
472	"\0"
473	},
474	{
475	4.1f,
476	" GL_ARB_ES2_compatibility \0"
477	" GL_ARB_get_program_binary \0"
478	" GL_ARB_separate_shader_objects \0"
479	" GL_ARB_shader_precision \0"
480	" GL_ARB_vertex_attrib_64bit \0"
481	" GL_ARB_viewport_array \0"
482	"\0"
483	}
484	};
485
486	uint32_t cPromoted = 0;
487	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
488	{
489	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
490	while (*pszExt)
491	{
492	# ifdef VBOX_STRICT
493	size_t cchExt = strlen(pszExt);
494	Assert(cchExt > 3);
495	Assert(pszExt[0] == ' ');
496	Assert(pszExt[1] != ' ');
497	Assert(pszExt[cchExt - 2] != ' ');
498	Assert(pszExt[cchExt - 1] == ' ');
499	# endif
500
501	if (strstr(*ppszExtensions, pszExt) == NULL)
502	{
503	if (cPromoted++ == 0)
504	{
505	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
506	AssertRCReturn(rc, rc);
507	}
508
509	rc = RTStrAAppend(ppszExtensions, pszExt);
510	AssertRCReturn(rc, rc);
511	}
512
513	pszExt = strchr(pszExt, '\0') + 1;
514	}
515	}
516	#endif
517
518	return VINF_SUCCESS;
519	}
520
521	/** Check whether this is an Intel GL driver.
522	*
523	* @returns true if this seems to be some Intel graphics.
524	*/
525	static bool vmsvga3dIsVendorIntel(void)
526	{
527	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
528	}
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
532	*/
533	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
534	{
535	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
538	#else
539	NOREF(pThis);
540	NOREF(fOtherProfile);
541	#endif
542	}
543
544
545	/**
546	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
547	*/
548	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
549	char *pszBuf, size_t cbBuf, bool fOtherProfile)
550	{
551	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
552	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
553	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
554	while (*pszCur == ' ')
555	pszCur++;
556	if (!*pszCur)
557	return false;
558
559	const char *pszEnd = strchr(pszCur, ' ');
560	AssertReturn(pszEnd, false);
561	size_t cch = pszEnd - pszCur;
562	if (cch < cbBuf)
563	{
564	memcpy(pszBuf, pszCur, cch);
565	pszBuf[cch] = '\0';
566	}
567	else if (cbBuf > 0)
568	{
569	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
570	pszBuf[cbBuf - 1] = '\0';
571	}
572
573	ppvEnumCtx = (void )pszEnd;
574	return true;
575	}
576
577
578	/**
579	* Initializes the VMSVGA3D state during VGA device construction.
580	*
581	* Failure are generally not fatal, 3D support will just be disabled.
582	*
583	* @returns VBox status code.
584	* @param pThis The VGA device state where svga.p3dState will be modified.
585	*/
586	int vmsvga3dInit(PVGASTATE pThis)
587	{
588	int rc;
589
590	AssertCompile(GL_TRUE == 1);
591	AssertCompile(GL_FALSE == 0);
592
593	#ifdef VMSVGA3D_DYNAMIC_LOAD
594	rc = glLdrInit(pThis->pDevInsR3);
595	if (RT_FAILURE(rc))
596	{
597	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
598	return rc;
599	}
600	#endif
601
602	/*
603	* Load and resolve imports from the external shared libraries.
604	*/
605	RTERRINFOSTATIC ErrInfo;
606	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
607	if (RT_FAILURE(rc))
608	{
609	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
610	return rc;
611	}
612	#ifdef RT_OS_DARWIN
613	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
614	if (RT_FAILURE(rc))
615	{
616	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
617	return rc;
618	}
619	#endif
620
621	/*
622	* Allocate the state.
623	*/
624	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
625	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
626
627	#ifdef RT_OS_WINDOWS
628	/* Create event semaphore and async IO thread. */
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	rc = RTSemEventCreate(&pState->WndRequestSem);
631	if (RT_SUCCESS(rc))
632	{
633	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
634	"VMSVGA3DWND");
635	if (RT_SUCCESS(rc))
636	return VINF_SUCCESS;
637
638	/* bail out. */
639	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
640	RTSemEventDestroy(pState->WndRequestSem);
641	}
642	else
643	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
644	RTMemFree(pThis->svga.p3dState);
645	pThis->svga.p3dState = NULL;
646	return rc;
647	#else
648	return VINF_SUCCESS;
649	#endif
650	}
651
652	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
653	{
654	/* A strict approach to get a proc address as recommended by Khronos:
655	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
656	* - "If the function is an extension, we need to check to see if the extension is supported."
657	*/
658
659	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
660	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
661	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
662	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
663	} while(0)
664
665	/* Get an optional function address. LogRel on failure. */
666	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
667	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
668	if (!pState->ext.ProcName) \
669	{ \
670	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
671	AssertFailed(); \
672	} \
673	} while(0)
674
675	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
676	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
677	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
678	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
679	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
680	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
681	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
682	GLGETPROC_(PFNGLTEXSUBIMAGE3DPROC , glTexSubImage3D, "");
683	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
684	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
685	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
686	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC , glCompressedTexSubImage3D, "");
687	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
688	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
689	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
690	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
691	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
692	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
693	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
694	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
695	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
696	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
697	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
698	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
699	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
700	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
701	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
702	/* glGetProgramivARB determines implementation limits for the program
703	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
704	* It differs from glGetProgramiv, which returns a parameter from a program object.
705	*/
706	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
707	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
708	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
709	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
710	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
711	#endif
712	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
713	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
714	#endif
715
716	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
717	if ( pState->rsGLVersion >= 3.0f
718	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
719	{
720	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
721	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
722	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
723	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
724	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
725	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
726	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
727	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
728	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
729	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
730	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
731	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
732	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
733	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
734	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
735	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
736	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
737	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
738	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
739	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
740	}
741
742	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
743	if (pState->rsGLVersion >= 3.1f)
744	{
745	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
746	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
747	}
748	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
749	{
750	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
751	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
752	}
753	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
754	{
755	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
756	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
757	}
758
759	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
760	if ( pState->rsGLVersion >= 3.2f
761	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
762	{
763	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
764	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
765	}
766
767	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
768	if ( pState->rsGLVersion >= 3.2f
769	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
770	{
771	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
772	}
773
774	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
775	if (pState->rsGLVersion >= 3.3f)
776	{
777	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
778	}
779	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
780	{
781	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
782	}
783
784	#undef GLGETPROCOPT_
785	#undef GLGETPROC_
786
787	return VINF_SUCCESS;
788	}
789
790
791	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
792	int vmsvga3dPowerOn(PVGASTATE pThis)
793	{
794	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
795	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
796	PVMSVGA3DCONTEXT pContext;
797	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
798	PVMSVGA3DCONTEXT pOtherCtx;
799	#endif
800	int rc;
801
802	if (pState->rsGLVersion != 0.0)
803	return VINF_SUCCESS; /* already initialized (load state) */
804
805	/*
806	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
807	*/
808	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
809	AssertRCReturn(rc, rc);
810
811	pContext = pState->papContexts[1];
812	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
813
814	#ifdef VMSVGA3D_DYNAMIC_LOAD
815	/* Context is set and it is possible now to resolve extension functions. */
816	rc = glLdrGetExtFunctions(pThis->pDevInsR3);
817	if (RT_FAILURE(rc))
818	{
819	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
820	return rc;
821	}
822	#endif
823
824	LogRel(("VMSVGA3d: OpenGL version: %s\n"
825	"VMSVGA3d: OpenGL Vendor: %s\n"
826	"VMSVGA3d: OpenGL Renderer: %s\n"
827	"VMSVGA3d: OpenGL shader language version: %s\n",
828	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
829	glGetString(GL_SHADING_LANGUAGE_VERSION)));
830
831	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
832	AssertRCReturn(rc, rc);
833	vmsvga3dLogRelExtensions("", pState->pszExtensions);
834
835	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
836
837
838	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
839	/*
840	* Get the extension list for the alternative profile so we can better
841	* figure out the shader model and stuff.
842	*/
843	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
844	AssertLogRelRCReturn(rc, rc);
845	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
846
847	pOtherCtx = pState->papContexts[2];
848	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
849
850	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
851	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
852	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
853	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
854	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
855	glGetString(GL_SHADING_LANGUAGE_VERSION)));
856
857	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
858	AssertRCReturn(rc, rc);
859	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
860
861	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
862
863	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
864	#else
865	pState->pszOtherExtensions = (char *)"";
866	pState->rsOtherGLVersion = pState->rsGLVersion;
867	#endif
868
869	/*
870	* Resolve GL function pointers and store them in pState->ext.
871	*/
872	rc = vmsvga3dLoadGLFunctions(pState);
873	if (RT_FAILURE(rc))
874	{
875	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
876	return rc;
877	}
878
879	/*
880	* Initialize the capabilities with sensible defaults.
881	*/
882	pState->caps.maxActiveLights = 1;
883	pState->caps.maxTextures = 1;
884	pState->caps.maxClipDistances = 4;
885	pState->caps.maxColorAttachments = 1;
886	pState->caps.maxRectangleTextureSize = 2048;
887	pState->caps.maxTextureAnisotropy = 2;
888	pState->caps.maxVertexShaderInstructions = 1024;
889	pState->caps.maxFragmentShaderInstructions = 1024;
890	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
891	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
892	pState->caps.flPointSize[0] = 1;
893	pState->caps.flPointSize[1] = 1;
894
895	/*
896	* Query capabilities
897	*/
898	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
899	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
900	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
901	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
902	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
903	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
904	#else
905	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
906	#endif
907	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
908	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
909	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
910	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
911
912	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
913	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
914	&pState->caps.maxFragmentShaderTemps));
915	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
916	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
917	&pState->caps.maxFragmentShaderInstructions));
918	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
919	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
920	&pState->caps.maxVertexShaderTemps));
921	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
922	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
923	&pState->caps.maxVertexShaderInstructions));
924
925	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
926
927	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
928	* ARB Assembly Language
929	* These are done through testing the presence of extensions. You should test them in this order:
930	* GL_NV_gpu_program4: SM 4.0 or better.
931	* GL_NV_vertex_program3: SM 3.0 or better.
932	* GL_ARB_fragment_program: SM 2.0 or better.
933	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
934	*
935	*/
936	/** @todo distinguish between vertex and pixel shaders??? */
937	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
938	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
939	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
940	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
941	#else
942	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
943	#endif
944	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
945	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
946	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
947	{
948	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
949	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
950	}
951	else
952	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
953	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
954	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
955	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
956	)
957	{
958	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
959	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
960	}
961	else
962	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
963	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
964	{
965	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
966	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
967	}
968	else
969	{
970	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
971	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
972	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
973	}
974
975	/* Now check the shading language version, in case it indicates a higher supported version. */
976	if (v >= 3.30f)
977	{
978	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
979	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
980	}
981	else
982	if (v >= 1.20f)
983	{
984	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
985	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
986	}
987
988	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
989	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
990	{
991	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
992	}
993
994	/*
995	* Tweak capabilities.
996	*/
997	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
998	if ( pState->caps.maxVertexShaderTemps < 32
999	&& vmsvga3dIsVendorIntel())
1000	pState->caps.maxVertexShaderTemps = 32;
1001
1002	#if 0
1003	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1004	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1005	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1006	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1007	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1008	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1009	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1010	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1011	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1012	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1013	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1014	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1015	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1016	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1017	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1018	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1019	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1020	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1021	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1022	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1023	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1024	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1025	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1026	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1027	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1028	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1029	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1030	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1031	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1032	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1033	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1034	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1035	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1036	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1037	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1038	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1039	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1040	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1041	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1042	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1043	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1044	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1045	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1046	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1047	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1048	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1049	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1050	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1051	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1052	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1053	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1054	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1055	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1056	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1057	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1058	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1059	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1060	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1061	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1062	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1063	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1064	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1065	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1066	#endif
1067
1068	LogRel(("VMSVGA3d: Capabilities:\n"));
1069	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1070	pState->caps.maxActiveLights, pState->caps.maxTextures));
1071	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1072	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1073	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1074	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1075	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1076	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1077	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1078	pState->caps.maxFragmentShaderTemps,
1079	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1080	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1081	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1082	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1083
1084
1085	/* Initialize the shader library. */
1086	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1087	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1088	rc = ShaderInitLib(&pState->ShaderIf);
1089	AssertRC(rc);
1090
1091	/* Cleanup */
1092	rc = vmsvga3dContextDestroy(pThis, 1);
1093	AssertRC(rc);
1094	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1095	rc = vmsvga3dContextDestroy(pThis, 2);
1096	AssertRC(rc);
1097	#endif
1098
1099	if ( pState->rsGLVersion < 3.0
1100	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1101	{
1102	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1103	return VERR_NOT_IMPLEMENTED;
1104	}
1105
1106	return VINF_SUCCESS;
1107	}
1108
1109	int vmsvga3dReset(PVGASTATE pThis)
1110	{
1111	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1112	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1113
1114	/* Destroy all leftover surfaces. */
1115	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1116	{
1117	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1118	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1119	}
1120
1121	/* Destroy all leftover contexts. */
1122	for (uint32_t i = 0; i < pState->cContexts; i++)
1123	{
1124	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1125	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1126	}
1127
1128	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1129	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1130
1131	return VINF_SUCCESS;
1132	}
1133
1134	int vmsvga3dTerminate(PVGASTATE pThis)
1135	{
1136	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1137	AssertReturn(pState, VERR_WRONG_ORDER);
1138	int rc;
1139
1140	rc = vmsvga3dReset(pThis);
1141	AssertRCReturn(rc, rc);
1142
1143	/* Terminate the shader library. */
1144	rc = ShaderDestroyLib();
1145	AssertRC(rc);
1146
1147	#ifdef RT_OS_WINDOWS
1148	/* Terminate the window creation thread. */
1149	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1150	AssertRCReturn(rc, rc);
1151
1152	RTSemEventDestroy(pState->WndRequestSem);
1153	#elif defined(RT_OS_DARWIN)
1154
1155	#elif defined(RT_OS_LINUX)
1156	/* signal to the thread that it is supposed to exit */
1157	pState->bTerminate = true;
1158	/* wait for it to terminate */
1159	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1160	AssertRC(rc);
1161	XCloseDisplay(pState->display);
1162	#endif
1163
1164	RTStrFree(pState->pszExtensions);
1165	pState->pszExtensions = NULL;
1166	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1167	RTStrFree(pState->pszOtherExtensions);
1168	#endif
1169	pState->pszOtherExtensions = NULL;
1170
1171	return VINF_SUCCESS;
1172	}
1173
1174
1175	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1176	{
1177	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1178	* redraw it. */
1179
1180	#ifdef RT_OS_DARWIN
1181	RT_NOREF(pOldViewport);
1182	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1183	if ( pState
1184	&& idScreen == 0
1185	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1186	{
1187	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1188	}
1189	#else
1190	RT_NOREF(pThis, idScreen, pOldViewport);
1191	#endif
1192	}
1193
1194
1195	/**
1196	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1197	* given surface format capability.
1198	*
1199	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1200	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1201	*
1202	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1203	* of implicit guest expectations:
1204	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1205	*/
1206	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1207	{
1208	uint32_t result = 0;
1209
1210	/** @todo missing:
1211	*
1212	* SVGA3DFORMAT_OP_PIXELSIZE
1213	*/
1214
1215	switch (idx3dCaps)
1216	{
1217	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1218	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1219	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1220	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1221	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1222	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1223	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1224	break;
1225
1226	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1227	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1228	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1229	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1230	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1231	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1232	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1233	break;
1234	}
1235
1236	/** @todo check hardware caps! */
1237	switch (idx3dCaps)
1238	{
1239	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1240	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1241	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1242	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1243	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1244	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1245	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1246	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1247	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1248	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1249	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1250	result \|= SVGA3DFORMAT_OP_TEXTURE
1251	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1252	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1253	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1254	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1255	\| SVGA3DFORMAT_OP_CUBETEXTURE
1256	\| SVGA3DFORMAT_OP_SRGBREAD
1257	\| SVGA3DFORMAT_OP_SRGBWRITE;
1258	break;
1259
1260	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1261	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1262	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1263	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1264	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1265	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1266	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1267	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1268	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1269	break;
1270
1271	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1272	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1273	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1274	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1275	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1276	result \|= SVGA3DFORMAT_OP_TEXTURE
1277	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1278	\| SVGA3DFORMAT_OP_CUBETEXTURE
1279	\| SVGA3DFORMAT_OP_SRGBREAD;
1280	break;
1281
1282	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1283	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1284	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1285	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1286	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1287	break;
1288
1289	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1290	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1291	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1292	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1293	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1294	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1295	result \|= SVGA3DFORMAT_OP_TEXTURE
1296	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1297	\| SVGA3DFORMAT_OP_CUBETEXTURE
1298	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1299	break;
1300
1301	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1302	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1303	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1304	result \|= SVGA3DFORMAT_OP_TEXTURE
1305	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1306	\| SVGA3DFORMAT_OP_CUBETEXTURE
1307	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1308	break;
1309
1310	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1311	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1312	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1313	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1314	break;
1315	}
1316	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1317
1318	return result;
1319	}
1320
1321	#if 0 /* unused */
1322	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1323	{
1324	RT_NOREF(pState3D, idx3dCaps);
1325
1326	/** @todo test this somehow */
1327	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1328
1329	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1330	return result;
1331	}
1332	#endif
1333
1334
1335	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1336	{
1337	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1338	AssertReturn(pState, VERR_NO_MEMORY);
1339	int rc = VINF_SUCCESS;
1340
1341	*pu32Val = 0;
1342
1343	/*
1344	* The capabilities access by current (2015-03-01) linux sources (gallium,
1345	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1346	* aren't access.
1347	*/
1348
1349	switch (idx3dCaps)
1350	{
1351	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1352	case SVGA3D_DEVCAP_3D:
1353	pu32Val = 1; / boolean? */
1354	break;
1355
1356	case SVGA3D_DEVCAP_MAX_LIGHTS:
1357	*pu32Val = pState->caps.maxActiveLights;
1358	break;
1359
1360	case SVGA3D_DEVCAP_MAX_TEXTURES:
1361	*pu32Val = pState->caps.maxTextures;
1362	break;
1363
1364	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1365	*pu32Val = pState->caps.maxClipDistances;
1366	break;
1367
1368	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1369	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1370	*pu32Val = pState->caps.vertexShaderVersion;
1371	break;
1372
1373	case SVGA3D_DEVCAP_VERTEX_SHADER:
1374	/* boolean? */
1375	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1376	break;
1377
1378	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1379	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1380	*pu32Val = pState->caps.fragmentShaderVersion;
1381	break;
1382
1383	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1384	/* boolean? */
1385	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1386	break;
1387
1388	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1389	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1390	/* Must be obsolete by now; surface format caps specify the same thing. */
1391	rc = VERR_INVALID_PARAMETER;
1392	break;
1393
1394	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1395	break;
1396
1397	/*
1398	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1399	* return TRUE. Even on physical hardware that does not support
1400	* these formats natively, the SVGA3D device will provide an emulation
1401	* which should be invisible to the guest OS.
1402	*/
1403	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1404	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1405	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1406	*pu32Val = 1;
1407	break;
1408
1409	case SVGA3D_DEVCAP_QUERY_TYPES:
1410	break;
1411
1412	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1413	break;
1414
1415	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1416	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1417	AssertCompile(sizeof(uint32_t) == sizeof(float));
1418	(float )pu32Val = pState->caps.flPointSize[1];
1419	break;
1420
1421	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1422	/** @todo ?? */
1423	rc = VERR_INVALID_PARAMETER;
1424	break;
1425
1426	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1427	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1428	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1429	*pu32Val = pState->caps.maxRectangleTextureSize;
1430	break;
1431
1432	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1433	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1434	//*pu32Val = pCaps->MaxVolumeExtent;
1435	*pu32Val = 256;
1436	break;
1437
1438	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1439	pu32Val = 32768; / hardcoded in Wine */
1440	break;
1441
1442	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1443	//*pu32Val = pCaps->MaxTextureAspectRatio;
1444	break;
1445
1446	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1447	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1448	*pu32Val = pState->caps.maxTextureAnisotropy;
1449	break;
1450
1451	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1452	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1453	pu32Val = 0xFFFFF; / hardcoded in Wine */
1454	break;
1455
1456	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1457	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1458	*pu32Val = pState->caps.maxVertexShaderInstructions;
1459	break;
1460
1461	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1462	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1463	break;
1464
1465	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1466	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1467	*pu32Val = pState->caps.maxVertexShaderTemps;
1468	break;
1469
1470	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1471	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1472	*pu32Val = pState->caps.maxFragmentShaderTemps;
1473	break;
1474
1475	case SVGA3D_DEVCAP_TEXTURE_OPS:
1476	break;
1477
1478	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1479	break;
1480
1481	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1482	break;
1483
1484	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1485	break;
1486
1487	case SVGA3D_DEVCAP_SUPERSAMPLE:
1488	break;
1489
1490	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1491	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1492	break;
1493
1494	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1495	break;
1496
1497	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1498	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1499	*pu32Val = pState->caps.maxColorAttachments;
1500	break;
1501
1502	/*
1503	* This is the maximum number of SVGA context IDs that the guest
1504	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1505	*/
1506	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1507	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1508	break;
1509
1510	/*
1511	* This is the maximum number of SVGA surface IDs that the guest
1512	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1513	*/
1514	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1515	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1516	break;
1517
1518	#if 0 /* Appeared more recently, not yet implemented. */
1519	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1520	case SVGA3D_DEVCAP_LINE_AA:
1521	break;
1522	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1523	case SVGA3D_DEVCAP_LINE_STIPPLE:
1524	break;
1525	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1526	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1527	break;
1528	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1529	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1530	break;
1531	#endif
1532
1533	/*
1534	* Supported surface formats.
1535	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1536	*/
1537	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1538	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1539	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1540	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1541	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1542	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1543	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1544	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1545	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1546	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1547	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1548	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1549	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1550	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1551	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1552	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1553	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1554	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1555	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1556	break;
1557
1558	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1559	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1560	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1561	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1562	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1563	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1564	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1565	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1566	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1567	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1568	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1569	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1570	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1571	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1572	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1573	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1574	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1575	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1576	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1577	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1578	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1579	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1580	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1581	break;
1582
1583	/* Linux: Not referenced in current sources. */
1584	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1585	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1586	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1587	rc = VERR_INVALID_PARAMETER;
1588	*pu32Val = 0;
1589	break;
1590
1591	default:
1592	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1593	rc = VERR_INVALID_PARAMETER;
1594	break;
1595	}
1596
1597	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1598	return rc;
1599	}
1600
1601	/**
1602	* Convert SVGA format value to its OpenGL equivalent
1603	*
1604	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1605	* help from wined3dformat_from_d3dformat().
1606	*/
1607	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1608	{
1609	#if 0
1610	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1611	#else
1612	#define AssertTestFmt(f) do {} while(0)
1613	#endif
1614	switch (format)
1615	{
1616	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1617	pSurface->internalFormatGL = GL_RGB8;
1618	pSurface->formatGL = GL_BGRA;
1619	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1620	break;
1621	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1622	pSurface->internalFormatGL = GL_RGBA8;
1623	pSurface->formatGL = GL_BGRA;
1624	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1625	break;
1626	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1627	pSurface->internalFormatGL = GL_RGB5;
1628	pSurface->formatGL = GL_RGB;
1629	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1630	AssertTestFmt(SVGA3D_R5G6B5);
1631	break;
1632	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1633	pSurface->internalFormatGL = GL_RGB5;
1634	pSurface->formatGL = GL_BGRA;
1635	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1636	AssertTestFmt(SVGA3D_X1R5G5B5);
1637	break;
1638	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1639	pSurface->internalFormatGL = GL_RGB5_A1;
1640	pSurface->formatGL = GL_BGRA;
1641	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1642	AssertTestFmt(SVGA3D_A1R5G5B5);
1643	break;
1644	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1645	pSurface->internalFormatGL = GL_RGBA4;
1646	pSurface->formatGL = GL_BGRA;
1647	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1648	AssertTestFmt(SVGA3D_A4R4G4B4);
1649	break;
1650
1651	case SVGA3D_R8G8B8A8_UNORM:
1652	pSurface->internalFormatGL = GL_RGBA8;
1653	pSurface->formatGL = GL_RGBA;
1654	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1655	break;
1656
1657	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1658	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1659	pSurface->formatGL = GL_DEPTH_COMPONENT;
1660	pSurface->typeGL = GL_UNSIGNED_INT;
1661	break;
1662	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1663	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1664	pSurface->formatGL = GL_DEPTH_COMPONENT;
1665	pSurface->typeGL = GL_UNSIGNED_SHORT;
1666	AssertTestFmt(SVGA3D_Z_D16);
1667	break;
1668	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1669	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1670	pSurface->formatGL = GL_DEPTH_STENCIL;
1671	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1672	break;
1673	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1674	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1675	pSurface->formatGL = GL_DEPTH_STENCIL;
1676	pSurface->typeGL = GL_UNSIGNED_SHORT;
1677	/** @todo Wine sources hints at no hw support for this, so test this one! */
1678	AssertTestFmt(SVGA3D_Z_D15S1);
1679	break;
1680	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1681	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1682	pSurface->formatGL = GL_DEPTH_COMPONENT;
1683	pSurface->typeGL = GL_UNSIGNED_INT;
1684	AssertTestFmt(SVGA3D_Z_D24X8);
1685	break;
1686
1687	/* Advanced D3D9 depth formats. */
1688	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1689	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1690	pSurface->formatGL = GL_DEPTH_COMPONENT;
1691	pSurface->typeGL = GL_HALF_FLOAT;
1692	break;
1693
1694	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1695	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1696	pSurface->formatGL = GL_DEPTH_COMPONENT;
1697	pSurface->typeGL = GL_FLOAT; /* ??? */
1698	break;
1699
1700	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1701	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1702	pSurface->formatGL = GL_DEPTH_STENCIL;
1703	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1704	break;
1705
1706	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1707	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1708	pSurface->formatGL = GL_RGBA; /* not used */
1709	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1710	break;
1711
1712	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1713	/* "DXT2 and DXT3 are the same from an API perspective." */
1714	RT_FALL_THRU();
1715	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1716	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1717	pSurface->formatGL = GL_RGBA; /* not used */
1718	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1719	break;
1720
1721	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1722	/* "DXT4 and DXT5 are the same from an API perspective." */
1723	RT_FALL_THRU();
1724	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1725	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1726	pSurface->formatGL = GL_RGBA; /* not used */
1727	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1728	break;
1729
1730	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1731	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1732	pSurface->formatGL = GL_LUMINANCE;
1733	pSurface->typeGL = GL_UNSIGNED_BYTE;
1734	break;
1735
1736	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1737	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1738	pSurface->formatGL = GL_LUMINANCE;
1739	pSurface->typeGL = GL_UNSIGNED_SHORT;
1740	break;
1741
1742	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1743	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1744	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1745	pSurface->typeGL = GL_UNSIGNED_BYTE;
1746	break;
1747
1748	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1749	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1750	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1751	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1752	break;
1753
1754	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1755	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1756	pSurface->formatGL = GL_ALPHA;
1757	pSurface->typeGL = GL_UNSIGNED_BYTE;
1758	break;
1759
1760	#if 0
1761
1762	/* Bump-map formats */
1763	case SVGA3D_BUMPU8V8:
1764	return D3DFMT_V8U8;
1765	case SVGA3D_BUMPL6V5U5:
1766	return D3DFMT_L6V5U5;
1767	case SVGA3D_BUMPX8L8V8U8:
1768	return D3DFMT_X8L8V8U8;
1769	case SVGA3D_BUMPL8V8U8:
1770	/* No corresponding D3D9 equivalent. */
1771	AssertFailedReturn(D3DFMT_UNKNOWN);
1772	/* signed bump-map formats */
1773	case SVGA3D_V8U8:
1774	return D3DFMT_V8U8;
1775	case SVGA3D_Q8W8V8U8:
1776	return D3DFMT_Q8W8V8U8;
1777	case SVGA3D_CxV8U8:
1778	return D3DFMT_CxV8U8;
1779	/* mixed bump-map formats */
1780	case SVGA3D_X8L8V8U8:
1781	return D3DFMT_X8L8V8U8;
1782	case SVGA3D_A2W10V10U10:
1783	return D3DFMT_A2W10V10U10;
1784	#endif
1785
1786	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1787	pSurface->internalFormatGL = GL_RGBA16F;
1788	pSurface->formatGL = GL_RGBA;
1789	#if 0 /* bird: wine uses half float, sounds correct to me... */
1790	pSurface->typeGL = GL_FLOAT;
1791	#else
1792	pSurface->typeGL = GL_HALF_FLOAT;
1793	AssertTestFmt(SVGA3D_ARGB_S10E5);
1794	#endif
1795	break;
1796
1797	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1798	pSurface->internalFormatGL = GL_RGBA32F;
1799	pSurface->formatGL = GL_RGBA;
1800	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1801	break;
1802
1803	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1804	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1805	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1806	pSurface->formatGL = GL_RGBA;
1807	#else
1808	pSurface->formatGL = GL_BGRA;
1809	#endif
1810	pSurface->typeGL = GL_UNSIGNED_INT;
1811	AssertTestFmt(SVGA3D_A2R10G10B10);
1812	break;
1813
1814
1815	/* Single- and dual-component floating point formats */
1816	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1817	pSurface->internalFormatGL = GL_R16F;
1818	pSurface->formatGL = GL_RED;
1819	#if 0 /* bird: wine uses half float, sounds correct to me... */
1820	pSurface->typeGL = GL_FLOAT;
1821	#else
1822	pSurface->typeGL = GL_HALF_FLOAT;
1823	AssertTestFmt(SVGA3D_R_S10E5);
1824	#endif
1825	break;
1826	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1827	pSurface->internalFormatGL = GL_R32F;
1828	pSurface->formatGL = GL_RED;
1829	pSurface->typeGL = GL_FLOAT;
1830	break;
1831	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1832	pSurface->internalFormatGL = GL_RG16F;
1833	pSurface->formatGL = GL_RG;
1834	#if 0 /* bird: wine uses half float, sounds correct to me... */
1835	pSurface->typeGL = GL_FLOAT;
1836	#else
1837	pSurface->typeGL = GL_HALF_FLOAT;
1838	AssertTestFmt(SVGA3D_RG_S10E5);
1839	#endif
1840	break;
1841	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1842	pSurface->internalFormatGL = GL_RG32F;
1843	pSurface->formatGL = GL_RG;
1844	pSurface->typeGL = GL_FLOAT;
1845	break;
1846
1847	/*
1848	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1849	* the most efficient format to use when creating new surfaces
1850	* expressly for index or vertex data.
1851	*/
1852	case SVGA3D_BUFFER:
1853	pSurface->internalFormatGL = -1;
1854	pSurface->formatGL = -1;
1855	pSurface->typeGL = -1;
1856	break;
1857
1858	#if 0
1859	return D3DFMT_UNKNOWN;
1860
1861	case SVGA3D_V16U16:
1862	return D3DFMT_V16U16;
1863	#endif
1864
1865	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1866	pSurface->internalFormatGL = GL_RG16;
1867	pSurface->formatGL = GL_RG;
1868	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1869	pSurface->typeGL = GL_UNSIGNED_INT;
1870	#else
1871	pSurface->typeGL = GL_UNSIGNED_SHORT;
1872	AssertTestFmt(SVGA3D_G16R16);
1873	#endif
1874	break;
1875
1876	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1877	pSurface->internalFormatGL = GL_RGBA16;
1878	pSurface->formatGL = GL_RGBA;
1879	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1880	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1881	#else
1882	pSurface->typeGL = GL_UNSIGNED_SHORT;
1883	AssertTestFmt(SVGA3D_A16B16G16R16);
1884	#endif
1885	break;
1886
1887	case SVGA3D_R8G8B8A8_SNORM:
1888	pSurface->internalFormatGL = GL_RGB8;
1889	pSurface->formatGL = GL_BGRA;
1890	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1891	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1892	break;
1893	case SVGA3D_R16G16_UNORM:
1894	pSurface->internalFormatGL = GL_RG16;
1895	pSurface->formatGL = GL_RG;
1896	pSurface->typeGL = GL_UNSIGNED_SHORT;
1897	AssertTestFmt(SVGA3D_R16G16_UNORM);
1898	break;
1899
1900	#if 0
1901	/* Packed Video formats */
1902	case SVGA3D_UYVY:
1903	return D3DFMT_UYVY;
1904	case SVGA3D_YUY2:
1905	return D3DFMT_YUY2;
1906
1907	/* Planar video formats */
1908	case SVGA3D_NV12:
1909	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1910
1911	/* Video format with alpha */
1912	case SVGA3D_AYUV:
1913	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1914
1915	case SVGA3D_BC4_UNORM:
1916	case SVGA3D_BC5_UNORM:
1917	/* Unknown; only in DX10 & 11 */
1918	break;
1919	#endif
1920	default:
1921	AssertMsgFailed(("Unsupported format %d\n", format));
1922	break;
1923	}
1924	#undef AssertTestFmt
1925	}
1926
1927
1928	#if 0
1929	/**
1930	* Convert SVGA multi sample count value to its D3D equivalent
1931	*/
1932	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1933	{
1934	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1935	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1936
1937	if (multisampleCount > 16)
1938	return D3DMULTISAMPLE_NONE;
1939
1940	/** @todo exact same mapping as d3d? */
1941	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1942	}
1943	#endif
1944
1945	/**
1946	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1947	*
1948	* @param pState The VMSVGA3d state.
1949	* @param pSurface The surface being destroyed.
1950	*/
1951	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1952	{
1953	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1954	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1955
1956	switch (pSurface->enmOGLResType)
1957	{
1958	case VMSVGA3D_OGLRESTYPE_BUFFER:
1959	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
1960	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1961	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1962	break;
1963
1964	case VMSVGA3D_OGLRESTYPE_TEXTURE:
1965	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
1966	glDeleteTextures(1, &pSurface->oglId.texture);
1967	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1968	break;
1969
1970	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
1971	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
1972	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1973	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1974	break;
1975
1976	default:
1977	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
1978	("hint=%#x, type=%d\n",
1979	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
1980	break;
1981	}
1982	}
1983
1984
1985	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1986	{
1987	for (uint32_t i = 0; i < cCopyBoxes; i++)
1988	{
1989	SVGA3dBox destBox, srcBox;
1990
1991	srcBox.x = pBox[i].srcx;
1992	srcBox.y = pBox[i].srcy;
1993	srcBox.z = pBox[i].srcz;
1994	srcBox.w = pBox[i].w;
1995	srcBox.h = pBox[i].h;
1996	srcBox.d = pBox[i].d;
1997
1998	destBox.x = pBox[i].x;
1999	destBox.y = pBox[i].y;
2000	destBox.z = pBox[i].z;
2001	destBox.w = pBox[i].w;
2002	destBox.h = pBox[i].h;
2003	destBox.d = pBox[i].d;
2004
2005	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2006	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2007	AssertRCReturn(rc, rc);
2008	}
2009	return VINF_SUCCESS;
2010	}
2011
2012
2013	/**
2014	* Save texture unpacking parameters and loads those appropriate for the given
2015	* surface.
2016	*
2017	* @param pState The VMSVGA3D state structure.
2018	* @param pContext The active context.
2019	* @param pSurface The surface.
2020	* @param pSave Where to save stuff.
2021	*/
2022	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2023	PVMSVGAPACKPARAMS pSave)
2024	{
2025	RT_NOREF(pState);
2026
2027	/*
2028	* Save (ignore errors, setting the defaults we want and avoids restore).
2029	*/
2030	pSave->iAlignment = 1;
2031	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2032	pSave->cxRow = 0;
2033	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2034
2035	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2036	pSave->cyImage = 0;
2037	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2038	Assert(pSave->cyImage == 0);
2039
2040	pSave->fSwapBytes = GL_FALSE;
2041	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2042	Assert(pSave->fSwapBytes == GL_FALSE);
2043
2044	pSave->fLsbFirst = GL_FALSE;
2045	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2046	Assert(pSave->fLsbFirst == GL_FALSE);
2047
2048	pSave->cSkipRows = 0;
2049	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2050	Assert(pSave->cSkipRows == 0);
2051
2052	pSave->cSkipPixels = 0;
2053	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2054	Assert(pSave->cSkipPixels == 0);
2055
2056	pSave->cSkipImages = 0;
2057	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2058	Assert(pSave->cSkipImages == 0);
2059
2060	VMSVGA3D_CLEAR_GL_ERRORS();
2061	#endif
2062
2063	/*
2064	* Setup unpack.
2065	*
2066	* Note! We use 1 as alignment here because we currently don't do any
2067	* aligning of line pitches anywhere.
2068	*/
2069	NOREF(pSurface);
2070	if (pSave->iAlignment != 1)
2071	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2072	if (pSave->cxRow != 0)
2073	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2074	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2075	if (pSave->cyImage != 0)
2076	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2077	if (pSave->fSwapBytes != 0)
2078	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2079	if (pSave->fLsbFirst != 0)
2080	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2081	if (pSave->cSkipRows != 0)
2082	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2083	if (pSave->cSkipPixels != 0)
2084	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2085	if (pSave->cSkipImages != 0)
2086	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2087	#endif
2088	}
2089
2090
2091	/**
2092	* Restores texture unpacking parameters.
2093	*
2094	* @param pState The VMSVGA3D state structure.
2095	* @param pContext The active context.
2096	* @param pSurface The surface.
2097	* @param pSave Where stuff was saved.
2098	*/
2099	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2100	PCVMSVGAPACKPARAMS pSave)
2101	{
2102	RT_NOREF(pState, pSurface);
2103
2104	if (pSave->iAlignment != 1)
2105	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2106	if (pSave->cxRow != 0)
2107	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2108	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2109	if (pSave->cyImage != 0)
2110	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2111	if (pSave->fSwapBytes != 0)
2112	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2113	if (pSave->fLsbFirst != 0)
2114	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2115	if (pSave->cSkipRows != 0)
2116	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2117	if (pSave->cSkipPixels != 0)
2118	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2119	if (pSave->cSkipImages != 0)
2120	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2121	#endif
2122	}
2123
2124	/**
2125	* Create D3D/OpenGL texture object for the specified surface.
2126	*
2127	* Surfaces are created when needed.
2128	*
2129	* @param pState The VMSVGA3d state.
2130	* @param pContext The context.
2131	* @param idAssociatedContext Probably the same as pContext->id.
2132	* @param pSurface The surface to create the texture for.
2133	*/
2134	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2135	PVMSVGA3DSURFACE pSurface)
2136	{
2137	RT_NOREF(idAssociatedContext);
2138
2139	LogFunc(("sid=%x\n", pSurface->id));
2140
2141	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2142
2143	/* Fugure out what kind of texture we are creating. */
2144	GLenum binding;
2145	GLenum target;
2146	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2147	{
2148	Assert(pSurface->cFaces == 6);
2149
2150	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2151	target = GL_TEXTURE_CUBE_MAP;
2152	}
2153	else
2154	{
2155	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2156	{
2157	binding = GL_TEXTURE_BINDING_3D;
2158	target = GL_TEXTURE_3D;
2159	}
2160	else
2161	{
2162	Assert(pSurface->cFaces == 1);
2163
2164	binding = GL_TEXTURE_BINDING_2D;
2165	target = GL_TEXTURE_2D;
2166	}
2167	}
2168
2169	/* All textures are created in the SharedCtx. */
2170	uint32_t idPrevCtx = pState->idActiveContext;
2171	pContext = &pState->SharedCtx;
2172	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2173
2174	glGenTextures(1, &pSurface->oglId.texture);
2175	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2176	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2177
2178	GLint activeTexture = 0;
2179	glGetIntegerv(binding, &activeTexture);
2180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2181
2182	/* Must bind texture to the current context in order to change it. */
2183	glBindTexture(target, pSurface->oglId.texture);
2184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2185
2186	/* Set the unpacking parameters. */
2187	VMSVGAPACKPARAMS SavedParams;
2188	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2189
2190	/** @todo Set the mip map generation filter settings. */
2191
2192	/* Set the mipmap base and max level parameters. */
2193	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2194	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2195	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2197
2198	if (pSurface->fDirty)
2199	LogFunc(("sync dirty texture\n"));
2200
2201	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2202	if (target == GL_TEXTURE_3D)
2203	{
2204	for (uint32_t i = 0; i < numMipLevels; ++i)
2205	{
2206	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2207	* exposing random host memory to the guest and helps a with the fedora 21 surface
2208	* corruption issues (launchpad, background, search field, login).
2209	*/
2210	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2211
2212	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2213	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2214
2215	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2216	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2217	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2218	{
2219	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2220	i,
2221	pSurface->internalFormatGL,
2222	pMipLevel->mipmapSize.width,
2223	pMipLevel->mipmapSize.height,
2224	pMipLevel->mipmapSize.depth,
2225	0,
2226	pMipLevel->cbSurface,
2227	pMipLevel->pSurfaceData);
2228	}
2229	else
2230	{
2231	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2232	i,
2233	pSurface->internalFormatGL,
2234	pMipLevel->mipmapSize.width,
2235	pMipLevel->mipmapSize.height,
2236	pMipLevel->mipmapSize.depth,
2237	0, /* border */
2238	pSurface->formatGL,
2239	pSurface->typeGL,
2240	pMipLevel->pSurfaceData);
2241	}
2242	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2243
2244	pMipLevel->fDirty = false;
2245	}
2246	}
2247	else if (target == GL_TEXTURE_CUBE_MAP)
2248	{
2249	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2250	{
2251	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2252
2253	for (uint32_t i = 0; i < numMipLevels; ++i)
2254	{
2255	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2256	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2257	Assert(pMipLevel->mipmapSize.depth == 1);
2258
2259	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2260	iFace, i, pMipLevel->fDirty));
2261
2262	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2263	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2264	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2265	{
2266	pState->ext.glCompressedTexImage2D(Face,
2267	i,
2268	pSurface->internalFormatGL,
2269	pMipLevel->mipmapSize.width,
2270	pMipLevel->mipmapSize.height,
2271	0,
2272	pMipLevel->cbSurface,
2273	pMipLevel->pSurfaceData);
2274	}
2275	else
2276	{
2277	glTexImage2D(Face,
2278	i,
2279	pSurface->internalFormatGL,
2280	pMipLevel->mipmapSize.width,
2281	pMipLevel->mipmapSize.height,
2282	0,
2283	pSurface->formatGL,
2284	pSurface->typeGL,
2285	pMipLevel->pSurfaceData);
2286	}
2287	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2288
2289	pMipLevel->fDirty = false;
2290	}
2291	}
2292	}
2293	else if (target == GL_TEXTURE_2D)
2294	{
2295	for (uint32_t i = 0; i < numMipLevels; ++i)
2296	{
2297	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2298	* exposing random host memory to the guest and helps a with the fedora 21 surface
2299	* corruption issues (launchpad, background, search field, login).
2300	*/
2301	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2302	Assert(pMipLevel->mipmapSize.depth == 1);
2303
2304	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2305	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2306
2307	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2308	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2309	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2310	{
2311	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2312	i,
2313	pSurface->internalFormatGL,
2314	pMipLevel->mipmapSize.width,
2315	pMipLevel->mipmapSize.height,
2316	0,
2317	pMipLevel->cbSurface,
2318	pMipLevel->pSurfaceData);
2319	}
2320	else
2321	{
2322	glTexImage2D(GL_TEXTURE_2D,
2323	i,
2324	pSurface->internalFormatGL,
2325	pMipLevel->mipmapSize.width,
2326	pMipLevel->mipmapSize.height,
2327	0,
2328	pSurface->formatGL,
2329	pSurface->typeGL,
2330	pMipLevel->pSurfaceData);
2331	}
2332	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2333
2334	pMipLevel->fDirty = false;
2335	}
2336	}
2337
2338	pSurface->fDirty = false;
2339
2340	/* Restore unpacking parameters. */
2341	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2342
2343	/* Restore the old active texture. */
2344	glBindTexture(target, activeTexture);
2345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2346
2347	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2348	pSurface->targetGL = target;
2349	pSurface->bindingGL = binding;
2350
2351	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2352	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2353	return VINF_SUCCESS;
2354	}
2355
2356
2357	/**
2358	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2359	*
2360	* @returns VBox status code.
2361	* @param pThis The VGA device instance.
2362	* @param pState The VMSVGA3d state.
2363	* @param pDstSurface The destination host surface.
2364	* @param uDstFace The destination face (valid).
2365	* @param uDstMipmap The destination mipmap level (valid).
2366	* @param pDstBox The destination box.
2367	* @param pSrcSurface The source host surface.
2368	* @param uSrcFace The destination face (valid).
2369	* @param uSrcMipmap The source mimap level (valid).
2370	* @param pSrcBox The source box.
2371	* @param enmMode The strecht blt mode .
2372	* @param pContext The VMSVGA3d context (already current for OGL).
2373	*/
2374	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2375	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2376	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2377	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2378	{
2379	RT_NOREF(pThis);
2380
2381	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2382	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2383
2384	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2385	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2386	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2387	{
2388	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2389	glAttachment = GL_DEPTH_ATTACHMENT;
2390	glMask = GL_DEPTH_BUFFER_BIT;
2391	}
2392
2393	/* Activate the read and draw framebuffer objects. */
2394	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2395	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2396	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2397	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2398
2399	/* Bind the source and destination objects to the right place. */
2400	GLenum textarget;
2401	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2402	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2403	else
2404	{
2405	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2406	textarget = GL_TEXTURE_2D;
2407	}
2408	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2409	pSrcSurface->oglId.texture, uSrcMipmap);
2410	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2411
2412	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2413	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2414	else
2415	{
2416	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2417	textarget = GL_TEXTURE_2D;
2418	}
2419	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2420	pDstSurface->oglId.texture, uDstMipmap);
2421	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2422
2423	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2424	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2425	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2426	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2427	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2428
2429	pState->ext.glBlitFramebuffer(pSrcBox->x,
2430	pSrcBox->y,
2431	pSrcBox->x + pSrcBox->w, /* exclusive. */
2432	pSrcBox->y + pSrcBox->h,
2433	pDstBox->x,
2434	pDstBox->y,
2435	pDstBox->x + pDstBox->w, /* exclusive. */
2436	pDstBox->y + pDstBox->h,
2437	glMask,
2438	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2439	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2440
2441	/* Reset the frame buffer association */
2442	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2443	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2444
2445	return VINF_SUCCESS;
2446	}
2447
2448	/**
2449	* Save texture packing parameters and loads those appropriate for the given
2450	* surface.
2451	*
2452	* @param pState The VMSVGA3D state structure.
2453	* @param pContext The active context.
2454	* @param pSurface The surface.
2455	* @param pSave Where to save stuff.
2456	*/
2457	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2458	PVMSVGAPACKPARAMS pSave)
2459	{
2460	RT_NOREF(pState);
2461	/*
2462	* Save (ignore errors, setting the defaults we want and avoids restore).
2463	*/
2464	pSave->iAlignment = 1;
2465	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2466	pSave->cxRow = 0;
2467	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2468
2469	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2470	pSave->cyImage = 0;
2471	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2472	Assert(pSave->cyImage == 0);
2473
2474	pSave->fSwapBytes = GL_FALSE;
2475	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2476	Assert(pSave->fSwapBytes == GL_FALSE);
2477
2478	pSave->fLsbFirst = GL_FALSE;
2479	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2480	Assert(pSave->fLsbFirst == GL_FALSE);
2481
2482	pSave->cSkipRows = 0;
2483	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2484	Assert(pSave->cSkipRows == 0);
2485
2486	pSave->cSkipPixels = 0;
2487	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2488	Assert(pSave->cSkipPixels == 0);
2489
2490	pSave->cSkipImages = 0;
2491	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2492	Assert(pSave->cSkipImages == 0);
2493
2494	VMSVGA3D_CLEAR_GL_ERRORS();
2495	#endif
2496
2497	/*
2498	* Setup unpack.
2499	*
2500	* Note! We use 1 as alignment here because we currently don't do any
2501	* aligning of line pitches anywhere.
2502	*/
2503	NOREF(pSurface);
2504	if (pSave->iAlignment != 1)
2505	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2506	if (pSave->cxRow != 0)
2507	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2508	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2509	if (pSave->cyImage != 0)
2510	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2511	if (pSave->fSwapBytes != 0)
2512	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2513	if (pSave->fLsbFirst != 0)
2514	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2515	if (pSave->cSkipRows != 0)
2516	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2517	if (pSave->cSkipPixels != 0)
2518	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2519	if (pSave->cSkipImages != 0)
2520	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2521	#endif
2522	}
2523
2524
2525	/**
2526	* Restores texture packing parameters.
2527	*
2528	* @param pState The VMSVGA3D state structure.
2529	* @param pContext The active context.
2530	* @param pSurface The surface.
2531	* @param pSave Where stuff was saved.
2532	*/
2533	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2534	PCVMSVGAPACKPARAMS pSave)
2535	{
2536	RT_NOREF(pState, pSurface);
2537	if (pSave->iAlignment != 1)
2538	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2539	if (pSave->cxRow != 0)
2540	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2541	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2542	if (pSave->cyImage != 0)
2543	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2544	if (pSave->fSwapBytes != 0)
2545	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2546	if (pSave->fLsbFirst != 0)
2547	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2548	if (pSave->cSkipRows != 0)
2549	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2550	if (pSave->cSkipPixels != 0)
2551	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2552	if (pSave->cSkipImages != 0)
2553	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2554	#endif
2555	}
2556
2557
2558	/**
2559	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2560	*
2561	* @returns Failure status code or @a rc.
2562	* @param pThis The VGA device instance data.
2563	* @param pState The VMSVGA3d state.
2564	* @param pSurface The host surface.
2565	* @param pMipLevel Mipmap level. The caller knows it already.
2566	* @param uHostFace The host face (valid).
2567	* @param uHostMipmap The host mipmap level (valid).
2568	* @param GuestPtr The guest pointer.
2569	* @param cbGuestPitch The guest pitch.
2570	* @param transfer The transfer direction.
2571	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2572	* @param pContext The context (for OpenGL).
2573	* @param rc The current rc for all boxes.
2574	* @param iBox The current box number (for Direct 3D).
2575	*/
2576	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2577	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2578	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2579	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2580	{
2581	RT_NOREF(iBox);
2582
2583	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2584	{
2585	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2586	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2587	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2588	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2589	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2590	case SVGA3D_SURFACE_HINT_TEXTURE:
2591	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2592	{
2593	uint32_t cbSurfacePitch;
2594	uint8_t *pDoubleBuffer;
2595	uint32_t offHst;
2596
2597	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2598	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2599	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2600	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2601
2602	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2603	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2604	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2605	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2606
2607	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2608	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2609	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2610
2611	GLenum texImageTarget;
2612	if (pSurface->targetGL == GL_TEXTURE_3D)
2613	{
2614	texImageTarget = GL_TEXTURE_3D;
2615	}
2616	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2617	{
2618	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2619	}
2620	else
2621	{
2622	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2623	texImageTarget = GL_TEXTURE_2D;
2624	}
2625
2626	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2627	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2628
2629	if (transfer == SVGA3D_READ_HOST_VRAM)
2630	{
2631	GLint activeTexture;
2632
2633	/* Must bind texture to the current context in order to read it. */
2634	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2635	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2636
2637	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2638	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2639
2640	/* Set row length and alignment of the input data. */
2641	VMSVGAPACKPARAMS SavedParams;
2642	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2643
2644	glGetTexImage(texImageTarget,
2645	uHostMipmap,
2646	pSurface->formatGL,
2647	pSurface->typeGL,
2648	pDoubleBuffer);
2649	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2650
2651	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2652
2653	/* Restore the old active texture. */
2654	glBindTexture(pSurface->targetGL, activeTexture);
2655	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2656
2657	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2658	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2659	}
2660	else
2661	{
2662	/* The buffer will contain only the copied rectangle. */
2663	offHst = 0;
2664	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2665	}
2666
2667	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2668
2669	rc = vmsvgaGMRTransfer(pThis,
2670	transfer,
2671	pDoubleBuffer,
2672	pMipLevel->cbSurface,
2673	offHst,
2674	cbSurfacePitch,
2675	GuestPtr,
2676	offGst,
2677	cbGuestPitch,
2678	cBlocksX * pSurface->cbBlock,
2679	cBlocksY);
2680	AssertRC(rc);
2681
2682	/* Update the opengl surface data. */
2683	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2684	{
2685	GLint activeTexture = 0;
2686	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2687	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2688
2689	/* Must bind texture to the current context in order to change it. */
2690	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2691	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2692
2693	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2694
2695	/* Set row length and alignment of the input data. */
2696	VMSVGAPACKPARAMS SavedParams;
2697	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2698
2699	if (texImageTarget == GL_TEXTURE_3D)
2700	{
2701	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2702	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2703	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2704	{
2705	pState->ext.glCompressedTexSubImage3D(texImageTarget,
2706	uHostMipmap,
2707	pBox->x,
2708	pBox->y,
2709	pBox->z,
2710	pBox->w,
2711	pBox->h,
2712	pBox->d,
2713	pSurface->formatGL,
2714	pSurface->typeGL,
2715	pDoubleBuffer);
2716	}
2717	else
2718	{
2719	pState->ext.glTexSubImage3D(texImageTarget,
2720	uHostMipmap,
2721	u32HostBlockX,
2722	u32HostBlockY,
2723	pBox->z,
2724	cBlocksX,
2725	cBlocksY,
2726	pBox->d,
2727	pSurface->formatGL,
2728	pSurface->typeGL,
2729	pDoubleBuffer);
2730	}
2731	}
2732	else
2733	{
2734	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2735	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2736	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2737	{
2738	pState->ext.glCompressedTexSubImage2D(texImageTarget,
2739	uHostMipmap,
2740	pBox->x,
2741	pBox->y,
2742	pBox->w,
2743	pBox->h,
2744	pSurface->internalFormatGL,
2745	cbSurfacePitch * cBlocksY,
2746	pDoubleBuffer);
2747	}
2748	else
2749	{
2750	glTexSubImage2D(texImageTarget,
2751	uHostMipmap,
2752	u32HostBlockX,
2753	u32HostBlockY,
2754	cBlocksX,
2755	cBlocksY,
2756	pSurface->formatGL,
2757	pSurface->typeGL,
2758	pDoubleBuffer);
2759	}
2760	}
2761	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2762
2763	/* Restore old values. */
2764	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2765
2766	/* Restore the old active texture. */
2767	glBindTexture(pSurface->targetGL, activeTexture);
2768	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2769	}
2770
2771	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2772
2773	/* Free the double buffer. */
2774	RTMemFree(pDoubleBuffer);
2775	break;
2776	}
2777
2778	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2779	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2780	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2781	{
2782	/* Buffers are uncompressed. */
2783	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2784
2785	/* Caller already clipped pBox and buffers are 1-dimensional. */
2786	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2787
2788	VMSVGA3D_CLEAR_GL_ERRORS();
2789	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2790	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2791	{
2792	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2793	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2794	if (RT_LIKELY(pbData != NULL))
2795	{
2796	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2797	GLint cbStrictBufSize;
2798	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2799	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2800	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2801	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2802	#endif
2803	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2804	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2805	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2806	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2807
2808	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2809
2810	rc = vmsvgaGMRTransfer(pThis,
2811	transfer,
2812	pbData,
2813	pMipLevel->cbSurface,
2814	offHst,
2815	pMipLevel->cbSurfacePitch,
2816	GuestPtr,
2817	pBox->srcx * pSurface->cbBlock,
2818	cbGuestPitch,
2819	pBox->w * pSurface->cbBlock,
2820	pBox->h);
2821	AssertRC(rc);
2822
2823	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2824
2825	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2827	}
2828	else
2829	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2830	}
2831	else
2832	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2833	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2834	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2835	break;
2836	}
2837
2838	default:
2839	AssertFailed();
2840	break;
2841	}
2842
2843	return rc;
2844	}
2845
2846	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2847	{
2848	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2849	PVMSVGA3DSURFACE pSurface;
2850	int rc = VINF_SUCCESS;
2851	PVMSVGA3DCONTEXT pContext;
2852	uint32_t cid;
2853	GLint activeTexture = 0;
2854
2855	AssertReturn(pState, VERR_NO_MEMORY);
2856
2857	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2858	AssertRCReturn(rc, rc);
2859
2860	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2861	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2862	pSurface->autogenFilter = filter;
2863
2864	LogFunc(("sid=%x filter=%d\n", sid, filter));
2865
2866	cid = SVGA3D_INVALID_ID;
2867	pContext = &pState->SharedCtx;
2868	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2869
2870	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2871	{
2872	/* Unknown surface type; turn it into a texture. */
2873	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2874	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2875	AssertRCReturn(rc, rc);
2876	}
2877	else
2878	{
2879	/** @todo new filter */
2880	AssertFailed();
2881	}
2882
2883	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2884	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2885
2886	/* Must bind texture to the current context in order to change it. */
2887	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2888	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2889
2890	/* Generate the mip maps. */
2891	pState->ext.glGenerateMipmap(pSurface->targetGL);
2892	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2893
2894	/* Restore the old texture. */
2895	glBindTexture(pSurface->targetGL, activeTexture);
2896	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2897
2898	return VINF_SUCCESS;
2899	}
2900
2901
2902	#ifdef RT_OS_LINUX
2903	/**
2904	* X11 event handling thread.
2905	*
2906	* @returns VINF_SUCCESS (ignored)
2907	* @param hThreadSelf thread handle
2908	* @param pvUser pointer to pState structure
2909	*/
2910	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
2911	{
2912	RT_NOREF(hThreadSelf);
2913	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
2914	while (!pState->bTerminate)
2915	{
2916	while (XPending(pState->display) > 0)
2917	{
2918	XEvent event;
2919	XNextEvent(pState->display, &event);
2920
2921	switch (event.type)
2922	{
2923	default:
2924	break;
2925	}
2926	}
2927	/* sleep for 16ms to not burn too many cycles */
2928	RTThreadSleep(16);
2929	}
2930	return VINF_SUCCESS;
2931	}
2932	#endif // RT_OS_LINUX
2933
2934
2935	/**
2936	* Create a new 3d context
2937	*
2938	* @returns VBox status code.
2939	* @param pThis VGA device instance data.
2940	* @param cid Context id
2941	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
2942	*/
2943	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
2944	{
2945	int rc;
2946	PVMSVGA3DCONTEXT pContext;
2947	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2948
2949	AssertReturn(pState, VERR_NO_MEMORY);
2950	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
2951	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
2952	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
2953	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
2954	#endif
2955
2956	Log(("vmsvga3dContextDefine id %x\n", cid));
2957
2958	if (cid == VMSVGA3D_SHARED_CTX_ID)
2959	pContext = &pState->SharedCtx;
2960	else
2961	{
2962	if (cid >= pState->cContexts)
2963	{
2964	/* Grow the array. */
2965	uint32_t cNew = RT_ALIGN(cid + 15, 16);
2966	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
2967	AssertReturn(pvNew, VERR_NO_MEMORY);
2968	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
2969	while (pState->cContexts < cNew)
2970	{
2971	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
2972	AssertReturn(pContext, VERR_NO_MEMORY);
2973	pContext->id = SVGA3D_INVALID_ID;
2974	pState->papContexts[pState->cContexts++] = pContext;
2975	}
2976	}
2977	/* If one already exists with this id, then destroy it now. */
2978	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
2979	vmsvga3dContextDestroy(pThis, cid);
2980
2981	pContext = pState->papContexts[cid];
2982	}
2983
2984	/*
2985	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
2986	*/
2987	PVMSVGA3DCONTEXT pSharedCtx = NULL;
2988	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
2989	{
2990	pSharedCtx = &pState->SharedCtx;
2991	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
2992	{
2993	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
2994	AssertLogRelRCReturn(rc, rc);
2995	}
2996	}
2997
2998	/*
2999	* Initialize the context.
3000	*/
3001	memset(pContext, 0, sizeof(*pContext));
3002	pContext->id = cid;
3003	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3004	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3005
3006	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3007	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3008	pContext->idFramebuffer = OPENGL_INVALID_ID;
3009	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3010	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3011
3012	rc = ShaderContextCreate(&pContext->pShaderContext);
3013	AssertRCReturn(rc, rc);
3014
3015	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3016	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3017
3018	#ifdef RT_OS_WINDOWS
3019	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3020	* to present the rendered image. Rendered images from the guest will be copied to
3021	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3022	* system memory in the guest VRAM.
3023	*/
3024	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3025	AssertRCReturn(rc, rc);
3026
3027	pContext->hdc = GetDC(pContext->hwnd);
3028	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3029
3030	PIXELFORMATDESCRIPTOR pfd = {
3031	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3032	1, /* version number */
3033	PFD_DRAW_TO_WINDOW \| /* support window */
3034	PFD_SUPPORT_OPENGL, /* support OpenGL */
3035	PFD_TYPE_RGBA, /* RGBA type */
3036	24, /* 24-bit color depth */
3037	0, 0, 0, 0, 0, 0, /* color bits ignored */
3038	8, /* alpha buffer */
3039	0, /* shift bit ignored */
3040	0, /* no accumulation buffer */
3041	0, 0, 0, 0, /* accum bits ignored */
3042	16, /* set depth buffer */
3043	16, /* set stencil buffer */
3044	0, /* no auxiliary buffer */
3045	PFD_MAIN_PLANE, /* main layer */
3046	0, /* reserved */
3047	0, 0, 0 /* layer masks ignored */
3048	};
3049	int pixelFormat;
3050	BOOL ret;
3051
3052	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3053	/** @todo is this really necessary?? */
3054	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3055	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3056
3057	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3058	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3059
3060	pContext->hglrc = wglCreateContext(pContext->hdc);
3061	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3062
3063	if (pSharedCtx)
3064	{
3065	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3066	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3067	}
3068
3069	#elif defined(RT_OS_DARWIN)
3070	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3071
3072	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3073	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3074	NULL,
3075	4, 4,
3076	pShareContext, pContext->fOtherProfile);
3077
3078	#else
3079	if (pState->display == NULL)
3080	{
3081	/* get an X display and make sure we have glX 1.3 */
3082	pState->display = XOpenDisplay(0);
3083	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3084	int glxMajor, glxMinor;
3085	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3086	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3087	/* start our X event handling thread */
3088	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3089	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3090	}
3091
3092	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3093	/* Create a small 4x4 window required for GL context. */
3094	int attrib[] =
3095	{
3096	GLX_RGBA,
3097	GLX_RED_SIZE, 1,
3098	GLX_GREEN_SIZE, 1,
3099	GLX_BLUE_SIZE, 1,
3100	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3101	GLX_DOUBLEBUFFER,
3102	None
3103	};
3104	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3105	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3106	XSetWindowAttributes swa;
3107	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3108	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3109	swa.border_pixel = 0;
3110	swa.background_pixel = 0;
3111	swa.event_mask = StructureNotifyMask;
3112	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3113	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3114	0, 0, 4, 4,
3115	0, vi->depth, InputOutput,
3116	vi->visual, flags, &swa);
3117	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3118
3119	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3120
3121	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3122	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3123	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3124	#endif
3125
3126	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3127
3128	/* NULL during the first PowerOn call. */
3129	if (pState->ext.glGenFramebuffers)
3130	{
3131	/* Create a framebuffer object for this context. */
3132	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3134
3135	/* Bind the object to the framebuffer target. */
3136	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3138
3139	/* Create read and draw framebuffer objects for this context. */
3140	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3142
3143	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3144	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3145
3146	}
3147	#if 0
3148	/** @todo move to shader lib!!! */
3149	/* Clear the screen */
3150	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3151
3152	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3153	glClearIndex(0);
3154	glClearDepth(1);
3155	glClearStencil(0xffff);
3156	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3157	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3158	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3159	if (pState->ext.glProvokingVertex)
3160	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3161	/** @todo move to shader lib!!! */
3162	#endif
3163	return VINF_SUCCESS;
3164	}
3165
3166
3167	/**
3168	* Create a new 3d context
3169	*
3170	* @returns VBox status code.
3171	* @param pThis VGA device instance data.
3172	* @param cid Context id
3173	*/
3174	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3175	{
3176	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3177	}
3178
3179	/**
3180	* Destroys a 3d context.
3181	*
3182	* @returns VBox status code.
3183	* @param pThis VGA device instance data.
3184	* @param pContext The context to destroy.
3185	* @param cid Context id
3186	*/
3187	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3188	{
3189	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3190	AssertReturn(pState, VERR_NO_MEMORY);
3191	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3192	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3193	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3194
3195	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3196
3197	/* Destroy all leftover pixel shaders. */
3198	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3199	{
3200	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3201	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3202	}
3203	if (pContext->paPixelShader)
3204	RTMemFree(pContext->paPixelShader);
3205
3206	/* Destroy all leftover vertex shaders. */
3207	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3208	{
3209	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3210	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3211	}
3212	if (pContext->paVertexShader)
3213	RTMemFree(pContext->paVertexShader);
3214
3215	if (pContext->state.paVertexShaderConst)
3216	RTMemFree(pContext->state.paVertexShaderConst);
3217	if (pContext->state.paPixelShaderConst)
3218	RTMemFree(pContext->state.paPixelShaderConst);
3219
3220	if (pContext->pShaderContext)
3221	{
3222	int rc = ShaderContextDestroy(pContext->pShaderContext);
3223	AssertRC(rc);
3224	}
3225
3226	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3227	{
3228	/* Unbind the object from the framebuffer target. */
3229	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3230	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3231	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3232	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3233
3234	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3235	{
3236	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3237	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3238	}
3239	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3240	{
3241	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3242	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3243	}
3244	}
3245
3246	vmsvga3dOcclusionQueryDelete(pState, pContext);
3247
3248	#ifdef RT_OS_WINDOWS
3249	wglMakeCurrent(pContext->hdc, NULL);
3250	wglDeleteContext(pContext->hglrc);
3251	ReleaseDC(pContext->hwnd, pContext->hdc);
3252
3253	/* Destroy the window we've created. */
3254	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3255	AssertRC(rc);
3256	#elif defined(RT_OS_DARWIN)
3257	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3258	#elif defined(RT_OS_LINUX)
3259	glXMakeCurrent(pState->display, None, NULL);
3260	glXDestroyContext(pState->display, pContext->glxContext);
3261	XDestroyWindow(pState->display, pContext->window);
3262	#endif
3263
3264	memset(pContext, 0, sizeof(*pContext));
3265	pContext->id = SVGA3D_INVALID_ID;
3266
3267	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3268	return VINF_SUCCESS;
3269	}
3270
3271	/**
3272	* Destroy an existing 3d context
3273	*
3274	* @returns VBox status code.
3275	* @param pThis VGA device instance data.
3276	* @param cid Context id
3277	*/
3278	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3279	{
3280	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3281	AssertReturn(pState, VERR_WRONG_ORDER);
3282
3283	/*
3284	* Resolve the context and hand it to the common worker function.
3285	*/
3286	if ( cid < pState->cContexts
3287	&& pState->papContexts[cid]->id == cid)
3288	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3289
3290	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3291	return VINF_SUCCESS;
3292	}
3293
3294	/**
3295	* Worker for vmsvga3dChangeMode that resizes a context.
3296	*
3297	* @param pThis The VGA device instance data.
3298	* @param pState The VMSVGA3d state.
3299	* @param pContext The context.
3300	*/
3301	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3302	{
3303	RT_NOREF3(pThis, pState, pContext);
3304	/* Do nothing. The window is not used for presenting. */
3305	}
3306
3307	/* Handle resize */
3308	int vmsvga3dChangeMode(PVGASTATE pThis)
3309	{
3310	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3311	AssertReturn(pState, VERR_NO_MEMORY);
3312
3313	/* Resize the shared context too. */
3314	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3315	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3316
3317	/* Resize all active contexts. */
3318	for (uint32_t i = 0; i < pState->cContexts; i++)
3319	{
3320	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3321	if (pContext->id != SVGA3D_INVALID_ID)
3322	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3323	}
3324
3325	return VINF_SUCCESS;
3326	}
3327
3328
3329	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3330	{
3331	PVMSVGA3DCONTEXT pContext;
3332	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3333	AssertReturn(pState, VERR_NO_MEMORY);
3334	bool fModelViewChanged = false;
3335
3336	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3337
3338	if ( cid >= pState->cContexts
3339	\|\| pState->papContexts[cid]->id != cid)
3340	{
3341	Log(("vmsvga3dSetTransform invalid context id!\n"));
3342	return VERR_INVALID_PARAMETER;
3343	}
3344	pContext = pState->papContexts[cid];
3345	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3346
3347	/* Save this matrix for vm state save/restore. */
3348	pContext->state.aTransformState[type].fValid = true;
3349	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3350	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3351
3352	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)));
3353	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)));
3354	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)));
3355	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)));
3356
3357	switch (type)
3358	{
3359	case SVGA3D_TRANSFORM_VIEW:
3360	/* View * World = Model View */
3361	glMatrixMode(GL_MODELVIEW);
3362	glLoadMatrixf(matrix);
3363	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3364	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3365	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3366	fModelViewChanged = true;
3367	break;
3368
3369	case SVGA3D_TRANSFORM_PROJECTION:
3370	{
3371	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3372	AssertRCReturn(rc, rc);
3373	break;
3374	}
3375
3376	case SVGA3D_TRANSFORM_TEXTURE0:
3377	glMatrixMode(GL_TEXTURE);
3378	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3379	glLoadMatrixf(matrix);
3380	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3381	break;
3382
3383	case SVGA3D_TRANSFORM_TEXTURE1:
3384	case SVGA3D_TRANSFORM_TEXTURE2:
3385	case SVGA3D_TRANSFORM_TEXTURE3:
3386	case SVGA3D_TRANSFORM_TEXTURE4:
3387	case SVGA3D_TRANSFORM_TEXTURE5:
3388	case SVGA3D_TRANSFORM_TEXTURE6:
3389	case SVGA3D_TRANSFORM_TEXTURE7:
3390	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3391	return VERR_INVALID_PARAMETER;
3392
3393	case SVGA3D_TRANSFORM_WORLD:
3394	/* View * World = Model View */
3395	glMatrixMode(GL_MODELVIEW);
3396	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3397	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3398	else
3399	glLoadIdentity();
3400	glMultMatrixf(matrix);
3401	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3402	fModelViewChanged = true;
3403	break;
3404
3405	case SVGA3D_TRANSFORM_WORLD1:
3406	case SVGA3D_TRANSFORM_WORLD2:
3407	case SVGA3D_TRANSFORM_WORLD3:
3408	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3409	return VERR_INVALID_PARAMETER;
3410
3411	default:
3412	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3413	return VERR_INVALID_PARAMETER;
3414	}
3415
3416	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3417	if (fModelViewChanged)
3418	{
3419	/* Reprogram the clip planes. */
3420	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3421	{
3422	if (pContext->state.aClipPlane[j].fValid == true)
3423	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3424	}
3425
3426	/* Reprogram the light data. */
3427	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3428	{
3429	if (pContext->state.aLightData[j].fValidData == true)
3430	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3431	}
3432	}
3433
3434	return VINF_SUCCESS;
3435	}
3436
3437	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3438	{
3439	PVMSVGA3DCONTEXT pContext;
3440	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3441	AssertReturn(pState, VERR_NO_MEMORY);
3442
3443	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3444
3445	if ( cid >= pState->cContexts
3446	\|\| pState->papContexts[cid]->id != cid)
3447	{
3448	Log(("vmsvga3dSetZRange invalid context id!\n"));
3449	return VERR_INVALID_PARAMETER;
3450	}
3451	pContext = pState->papContexts[cid];
3452	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3453
3454	pContext->state.zRange = zRange;
3455	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3456
3457	if (zRange.min < -1.0)
3458	zRange.min = -1.0;
3459	if (zRange.max > 1.0)
3460	zRange.max = 1.0;
3461
3462	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3463	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3464	return VINF_SUCCESS;
3465	}
3466
3467	/**
3468	* Convert SVGA blend op value to its OpenGL equivalent
3469	*/
3470	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3471	{
3472	switch (blendOp)
3473	{
3474	case SVGA3D_BLENDOP_ZERO:
3475	return GL_ZERO;
3476	case SVGA3D_BLENDOP_ONE:
3477	return GL_ONE;
3478	case SVGA3D_BLENDOP_SRCCOLOR:
3479	return GL_SRC_COLOR;
3480	case SVGA3D_BLENDOP_INVSRCCOLOR:
3481	return GL_ONE_MINUS_SRC_COLOR;
3482	case SVGA3D_BLENDOP_SRCALPHA:
3483	return GL_SRC_ALPHA;
3484	case SVGA3D_BLENDOP_INVSRCALPHA:
3485	return GL_ONE_MINUS_SRC_ALPHA;
3486	case SVGA3D_BLENDOP_DESTALPHA:
3487	return GL_DST_ALPHA;
3488	case SVGA3D_BLENDOP_INVDESTALPHA:
3489	return GL_ONE_MINUS_DST_ALPHA;
3490	case SVGA3D_BLENDOP_DESTCOLOR:
3491	return GL_DST_COLOR;
3492	case SVGA3D_BLENDOP_INVDESTCOLOR:
3493	return GL_ONE_MINUS_DST_COLOR;
3494	case SVGA3D_BLENDOP_SRCALPHASAT:
3495	return GL_SRC_ALPHA_SATURATE;
3496	case SVGA3D_BLENDOP_BLENDFACTOR:
3497	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3498	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3499	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3500	default:
3501	AssertFailed();
3502	return GL_ONE;
3503	}
3504	}
3505
3506	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3507	{
3508	switch (blendEq)
3509	{
3510	case SVGA3D_BLENDEQ_ADD:
3511	return GL_FUNC_ADD;
3512	case SVGA3D_BLENDEQ_SUBTRACT:
3513	return GL_FUNC_SUBTRACT;
3514	case SVGA3D_BLENDEQ_REVSUBTRACT:
3515	return GL_FUNC_REVERSE_SUBTRACT;
3516	case SVGA3D_BLENDEQ_MINIMUM:
3517	return GL_MIN;
3518	case SVGA3D_BLENDEQ_MAXIMUM:
3519	return GL_MAX;
3520	default:
3521	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3522	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3523	return GL_FUNC_ADD;
3524	}
3525	}
3526
3527	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3528	{
3529	switch (cmpFunc)
3530	{
3531	case SVGA3D_CMP_NEVER:
3532	return GL_NEVER;
3533	case SVGA3D_CMP_LESS:
3534	return GL_LESS;
3535	case SVGA3D_CMP_EQUAL:
3536	return GL_EQUAL;
3537	case SVGA3D_CMP_LESSEQUAL:
3538	return GL_LEQUAL;
3539	case SVGA3D_CMP_GREATER:
3540	return GL_GREATER;
3541	case SVGA3D_CMP_NOTEQUAL:
3542	return GL_NOTEQUAL;
3543	case SVGA3D_CMP_GREATEREQUAL:
3544	return GL_GEQUAL;
3545	case SVGA3D_CMP_ALWAYS:
3546	return GL_ALWAYS;
3547	default:
3548	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3549	return GL_LESS;
3550	}
3551	}
3552
3553	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3554	{
3555	switch (stencilOp)
3556	{
3557	case SVGA3D_STENCILOP_KEEP:
3558	return GL_KEEP;
3559	case SVGA3D_STENCILOP_ZERO:
3560	return GL_ZERO;
3561	case SVGA3D_STENCILOP_REPLACE:
3562	return GL_REPLACE;
3563	case SVGA3D_STENCILOP_INCRSAT:
3564	return GL_INCR_WRAP;
3565	case SVGA3D_STENCILOP_DECRSAT:
3566	return GL_DECR_WRAP;
3567	case SVGA3D_STENCILOP_INVERT:
3568	return GL_INVERT;
3569	case SVGA3D_STENCILOP_INCR:
3570	return GL_INCR;
3571	case SVGA3D_STENCILOP_DECR:
3572	return GL_DECR;
3573	default:
3574	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3575	return GL_KEEP;
3576	}
3577	}
3578
3579	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3580	{
3581	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3582	PVMSVGA3DCONTEXT pContext;
3583	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3584	AssertReturn(pState, VERR_NO_MEMORY);
3585
3586	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3587
3588	if ( cid >= pState->cContexts
3589	\|\| pState->papContexts[cid]->id != cid)
3590	{
3591	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3592	return VERR_INVALID_PARAMETER;
3593	}
3594	pContext = pState->papContexts[cid];
3595	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3596
3597	for (unsigned i = 0; i < cRenderStates; i++)
3598	{
3599	GLenum enableCap = ~(GLenum)0;
3600	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3601	/* Save the render state for vm state saving. */
3602	if (pRenderState[i].state < SVGA3D_RS_MAX)
3603	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3604
3605	switch (pRenderState[i].state)
3606	{
3607	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3608	enableCap = GL_DEPTH_TEST;
3609	val = pRenderState[i].uintValue;
3610	break;
3611
3612	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3613	glDepthMask(!!pRenderState[i].uintValue);
3614	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3615	break;
3616
3617	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3618	enableCap = GL_ALPHA_TEST;
3619	val = pRenderState[i].uintValue;
3620	break;
3621
3622	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3623	enableCap = GL_DITHER;
3624	val = pRenderState[i].uintValue;
3625	break;
3626
3627	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3628	enableCap = GL_FOG;
3629	val = pRenderState[i].uintValue;
3630	break;
3631
3632	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3633	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3634	break;
3635
3636	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3637	enableCap = GL_LIGHTING;
3638	val = pRenderState[i].uintValue;
3639	break;
3640
3641	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3642	/* not applicable */
3643	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3644	break;
3645
3646	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3647	enableCap = GL_POINT_SPRITE_ARB;
3648	val = pRenderState[i].uintValue;
3649	break;
3650
3651	case SVGA3D_RS_POINTSIZE: /* float */
3652	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3653	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3654	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3655	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3656	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3657
3658	glPointSize(pRenderState[i].floatValue);
3659	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3660	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3661	break;
3662
3663	case SVGA3D_RS_POINTSIZEMIN: /* float */
3664	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3666	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3667	break;
3668
3669	case SVGA3D_RS_POINTSIZEMAX: /* float */
3670	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3672	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3673	break;
3674
3675	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3676	case SVGA3D_RS_POINTSCALE_A: /* float */
3677	case SVGA3D_RS_POINTSCALE_B: /* float */
3678	case SVGA3D_RS_POINTSCALE_C: /* float */
3679	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3680	break;
3681
3682	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3683	{
3684	GLfloat color[4]; /* red, green, blue, alpha */
3685
3686	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3687
3688	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3689	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3690	break;
3691	}
3692
3693	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3694	{
3695	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3696	for (uint32_t j = 0; j <= 5; j++)
3697	{
3698	if (pRenderState[i].uintValue & RT_BIT(j))
3699	glEnable(GL_CLIP_PLANE0 + j);
3700	else
3701	glDisable(GL_CLIP_PLANE0 + j);
3702	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3703	}
3704	break;
3705	}
3706
3707	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3708	{
3709	GLfloat color[4]; /* red, green, blue, alpha */
3710
3711	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3712
3713	glFogfv(GL_FOG_COLOR, color);
3714	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3715	break;
3716	}
3717
3718	case SVGA3D_RS_FOGSTART: /* float */
3719	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3720	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3721	break;
3722
3723	case SVGA3D_RS_FOGEND: /* float */
3724	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3725	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3726	break;
3727
3728	case SVGA3D_RS_FOGDENSITY: /* float */
3729	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3730	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3731	break;
3732
3733	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3734	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3735	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3736	break;
3737
3738	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3739	{
3740	SVGA3dFogMode mode;
3741	mode.uintValue = pRenderState[i].uintValue;
3742
3743	enableCap = GL_FOG_MODE;
3744	switch (mode.s.function)
3745	{
3746	case SVGA3D_FOGFUNC_EXP:
3747	val = GL_EXP;
3748	break;
3749	case SVGA3D_FOGFUNC_EXP2:
3750	val = GL_EXP2;
3751	break;
3752	case SVGA3D_FOGFUNC_LINEAR:
3753	val = GL_LINEAR;
3754	break;
3755	default:
3756	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3757	break;
3758	}
3759
3760	/** @todo how to switch between vertex and pixel fog modes??? */
3761	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3762	#if 0
3763	/* The fog type determines the render state. */
3764	switch (mode.s.type)
3765	{
3766	case SVGA3D_FOGTYPE_VERTEX:
3767	renderState = D3DRS_FOGVERTEXMODE;
3768	break;
3769	case SVGA3D_FOGTYPE_PIXEL:
3770	renderState = D3DRS_FOGTABLEMODE;
3771	break;
3772	default:
3773	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3774	break;
3775	}
3776	#endif
3777
3778	/* Set the fog base to depth or range. */
3779	switch (mode.s.base)
3780	{
3781	case SVGA3D_FOGBASE_DEPTHBASED:
3782	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3783	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3784	break;
3785	case SVGA3D_FOGBASE_RANGEBASED:
3786	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3787	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3788	break;
3789	default:
3790	/* ignore */
3791	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3792	break;
3793	}
3794	break;
3795	}
3796
3797	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3798	{
3799	SVGA3dFillMode mode;
3800
3801	mode.uintValue = pRenderState[i].uintValue;
3802
3803	switch (mode.s.mode)
3804	{
3805	case SVGA3D_FILLMODE_POINT:
3806	val = GL_POINT;
3807	break;
3808	case SVGA3D_FILLMODE_LINE:
3809	val = GL_LINE;
3810	break;
3811	case SVGA3D_FILLMODE_FILL:
3812	val = GL_FILL;
3813	break;
3814	default:
3815	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3816	break;
3817	}
3818	/* @note only front and back faces */
3819	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3820	glPolygonMode(GL_FRONT_AND_BACK, val);
3821	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3822	break;
3823	}
3824
3825	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3826	switch (pRenderState[i].uintValue)
3827	{
3828	case SVGA3D_SHADEMODE_FLAT:
3829	val = GL_FLAT;
3830	break;
3831
3832	case SVGA3D_SHADEMODE_SMOOTH:
3833	val = GL_SMOOTH;
3834	break;
3835
3836	default:
3837	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3838	break;
3839	}
3840
3841	glShadeModel(val);
3842	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3843	break;
3844
3845	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3846	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3847	/** @todo */
3848	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3849	/*
3850	renderState = D3DRS_LINEPATTERN;
3851	val = pRenderState[i].uintValue;
3852	*/
3853	break;
3854
3855	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3856	enableCap = GL_LINE_SMOOTH;
3857	val = pRenderState[i].uintValue;
3858	break;
3859
3860	case SVGA3D_RS_LINEWIDTH: /* float */
3861	glLineWidth(pRenderState[i].floatValue);
3862	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3863	break;
3864
3865	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3866	{
3867	/* Refresh the blending state based on the new enable setting.
3868	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3869	*/
3870	static SVGA3dRenderStateName const saRefreshState[] =
3871	{
3872	SVGA3D_RS_SRCBLEND,
3873	SVGA3D_RS_BLENDEQUATION
3874	};
3875	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3876	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3877	{
3878	renderstate[j].state = saRefreshState[j];
3879	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3880	}
3881
3882	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3883	AssertRCReturn(rc, rc);
3884
3885	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3886	continue; /* Ignore if blend is enabled */
3887	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3888	} RT_FALL_THRU();
3889
3890	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3891	enableCap = GL_BLEND;
3892	val = pRenderState[i].uintValue;
3893	break;
3894
3895	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
3896	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
3897	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
3898	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
3899	{
3900	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
3901	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
3902
3903	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
3904	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3905	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
3906	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3907	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
3908	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3909	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
3910	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3911
3912	switch (pRenderState[i].state)
3913	{
3914	case SVGA3D_RS_SRCBLEND:
3915	srcRGB = blendop;
3916	break;
3917	case SVGA3D_RS_DSTBLEND:
3918	dstRGB = blendop;
3919	break;
3920	case SVGA3D_RS_SRCBLENDALPHA:
3921	srcAlpha = blendop;
3922	break;
3923	case SVGA3D_RS_DSTBLENDALPHA:
3924	dstAlpha = blendop;
3925	break;
3926	default:
3927	/* not possible; shut up gcc */
3928	AssertFailed();
3929	break;
3930	}
3931
3932	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3933	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
3934	else
3935	glBlendFunc(srcRGB, dstRGB);
3936	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3937	break;
3938	}
3939
3940	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
3941	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
3942	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3943	{
3944	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
3945	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
3946	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
3947	}
3948	else
3949	{
3950	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3951	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3952	#else
3953	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3954	#endif
3955	}
3956	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3957	break;
3958
3959	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
3960	{
3961	GLfloat red, green, blue, alpha;
3962
3963	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
3964
3965	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3966	glBlendColor(red, green, blue, alpha);
3967	#else
3968	pState->ext.glBlendColor(red, green, blue, alpha);
3969	#endif
3970	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3971	break;
3972	}
3973
3974	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
3975	{
3976	GLenum mode = GL_BACK; /* default for OpenGL */
3977
3978	switch (pRenderState[i].uintValue)
3979	{
3980	case SVGA3D_FACE_NONE:
3981	break;
3982	case SVGA3D_FACE_FRONT:
3983	mode = GL_FRONT;
3984	break;
3985	case SVGA3D_FACE_BACK:
3986	mode = GL_BACK;
3987	break;
3988	case SVGA3D_FACE_FRONT_BACK:
3989	mode = GL_FRONT_AND_BACK;
3990	break;
3991	default:
3992	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3993	break;
3994	}
3995	enableCap = GL_CULL_FACE;
3996	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
3997	{
3998	glCullFace(mode);
3999	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4000	val = 1;
4001	}
4002	else
4003	val = 0;
4004	break;
4005	}
4006
4007	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4008	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4009	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4010	break;
4011
4012	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4013	{
4014	GLclampf ref;
4015
4016	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4017	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4018	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4019	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4020	break;
4021	}
4022
4023	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4024	{
4025	GLint func;
4026
4027	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4028	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4029	glAlphaFunc(func, pRenderState[i].floatValue);
4030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4031	break;
4032	}
4033
4034	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4035	{
4036	/* Refresh the stencil state based on the new enable setting.
4037	* This will take existing states and set them using either glStencil or glStencil*Separate.
4038	*/
4039	static SVGA3dRenderStateName const saRefreshState[] =
4040	{
4041	SVGA3D_RS_STENCILFUNC,
4042	SVGA3D_RS_STENCILFAIL,
4043	SVGA3D_RS_CCWSTENCILFUNC,
4044	SVGA3D_RS_CCWSTENCILFAIL
4045	};
4046	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4047	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4048	{
4049	renderstate[j].state = saRefreshState[j];
4050	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4051	}
4052
4053	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4054	AssertRCReturn(rc, rc);
4055
4056	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4057	continue; /* Ignore if stencil is enabled */
4058	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4059	} RT_FALL_THRU();
4060
4061	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4062	enableCap = GL_STENCIL_TEST;
4063	val = pRenderState[i].uintValue;
4064	break;
4065
4066	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4067	case SVGA3D_RS_STENCILREF: /* uint32_t */
4068	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4069	{
4070	GLint func, ref;
4071	GLuint mask;
4072
4073	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4074	glGetIntegerv(GL_STENCIL_FUNC, &func);
4075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4076	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4077	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4078	glGetIntegerv(GL_STENCIL_REF, &ref);
4079	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4080
4081	/* Update the changed value. */
4082	switch (pRenderState[i].state)
4083	{
4084	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4085	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4086	break;
4087
4088	case SVGA3D_RS_STENCILREF: /* uint32_t */
4089	ref = pRenderState[i].uintValue;
4090	break;
4091
4092	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4093	mask = pRenderState[i].uintValue;
4094	break;
4095
4096	default:
4097	/* not possible; shut up gcc */
4098	AssertFailed();
4099	break;
4100	}
4101
4102	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4103	{
4104	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4105	}
4106	else
4107	{
4108	glStencilFunc(func, ref, mask);
4109	}
4110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4111	break;
4112	}
4113
4114	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4115	glStencilMask(pRenderState[i].uintValue);
4116	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4117	break;
4118
4119	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4120	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4121	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4122	{
4123	GLint sfail, dpfail, dppass;
4124	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4125
4126	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4127	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4128	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4130	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4132
4133	switch (pRenderState[i].state)
4134	{
4135	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4136	sfail = stencilop;
4137	break;
4138	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4139	dpfail = stencilop;
4140	break;
4141	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4142	dppass = stencilop;
4143	break;
4144	default:
4145	/* not possible; shut up gcc */
4146	AssertFailed();
4147	break;
4148	}
4149	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4150	{
4151	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4152	}
4153	else
4154	{
4155	glStencilOp(sfail, dpfail, dppass);
4156	}
4157	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4158	break;
4159	}
4160
4161	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4162	{
4163	GLint ref;
4164	GLuint mask;
4165	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4166
4167	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4168	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4169	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4170	glGetIntegerv(GL_STENCIL_REF, &ref);
4171	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4172
4173	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4174	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4175	break;
4176	}
4177
4178	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4179	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4180	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4181	{
4182	GLint sfail, dpfail, dppass;
4183	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4184
4185	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4187	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4189	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4190	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4191
4192	switch (pRenderState[i].state)
4193	{
4194	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4195	sfail = stencilop;
4196	break;
4197	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4198	dpfail = stencilop;
4199	break;
4200	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4201	dppass = stencilop;
4202	break;
4203	default:
4204	/* not possible; shut up gcc */
4205	AssertFailed();
4206	break;
4207	}
4208	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4209	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4210	break;
4211	}
4212
4213	case SVGA3D_RS_ZBIAS: /* float */
4214	/** @todo unknown meaning; depth bias is not identical
4215	renderState = D3DRS_DEPTHBIAS;
4216	val = pRenderState[i].uintValue;
4217	*/
4218	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4219	break;
4220
4221	case SVGA3D_RS_DEPTHBIAS: /* float */
4222	{
4223	GLfloat factor;
4224
4225	/** @todo not sure if the d3d & ogl definitions are identical. */
4226
4227	/* Do not change the factor part. */
4228	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4229	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4230
4231	glPolygonOffset(factor, pRenderState[i].floatValue);
4232	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4233	break;
4234	}
4235
4236	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4237	{
4238	GLfloat units;
4239
4240	/** @todo not sure if the d3d & ogl definitions are identical. */
4241
4242	/* Do not change the factor part. */
4243	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4244	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4245
4246	glPolygonOffset(pRenderState[i].floatValue, units);
4247	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4248	break;
4249	}
4250
4251	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4252	{
4253	GLboolean red, green, blue, alpha;
4254	SVGA3dColorMask mask;
4255
4256	mask.uintValue = pRenderState[i].uintValue;
4257
4258	red = mask.s.red;
4259	green = mask.s.green;
4260	blue = mask.s.blue;
4261	alpha = mask.s.alpha;
4262
4263	glColorMask(red, green, blue, alpha);
4264	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4265	break;
4266	}
4267
4268	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4269	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4270	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4271	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4272	break;
4273
4274	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4275	enableCap = GL_SCISSOR_TEST;
4276	val = pRenderState[i].uintValue;
4277	break;
4278
4279	#if 0
4280	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4281	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4282	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4283	val = pRenderState[i].uintValue;
4284	break;
4285
4286	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4287	renderState = D3DRS_SPECULARMATERIALSOURCE;
4288	val = pRenderState[i].uintValue;
4289	break;
4290
4291	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4292	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4293	val = pRenderState[i].uintValue;
4294	break;
4295
4296	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4297	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4298	val = pRenderState[i].uintValue;
4299	break;
4300	#endif
4301
4302	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4303	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4304	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4305	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4306	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4307	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4308	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4309	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4310	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4311	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4312	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4313	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4314	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4315	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4316	break;
4317
4318	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4319	case SVGA3D_RS_TWEENFACTOR: /* float */
4320	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4321	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4322	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4323	break;
4324
4325	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4326	enableCap = GL_MULTISAMPLE;
4327	val = pRenderState[i].uintValue;
4328	break;
4329
4330	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4331	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4332	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4333	break;
4334
4335	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4336	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4337	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4338	/*
4339	renderState = D3DRS_COORDINATETYPE;
4340	val = pRenderState[i].uintValue;
4341	*/
4342	break;
4343
4344	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4345	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4346	/* Invert the selected mode because of y-inversion (?) */
4347	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4348	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4349	break;
4350
4351	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4352	//AssertFailed();
4353	/*
4354	D3DRS_SRGBWRITEENABLE ??
4355	renderState = D3DRS_OUTPUTGAMMA;
4356	val = pRenderState[i].uintValue;
4357	*/
4358	break;
4359
4360	#if 0
4361
4362	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4363	//AssertFailed();
4364	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4365	val = pRenderState[i].uintValue;
4366	break;
4367
4368	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4369	renderState = D3DRS_TEXTUREFACTOR;
4370	val = pRenderState[i].uintValue;
4371	break;
4372
4373	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4374	renderState = D3DRS_LOCALVIEWER;
4375	val = pRenderState[i].uintValue;
4376	break;
4377
4378	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4379	AssertFailed();
4380	/*
4381	renderState = D3DRS_ZVISIBLE;
4382	val = pRenderState[i].uintValue;
4383	*/
4384	break;
4385
4386	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4387	renderState = D3DRS_CLIPPING;
4388	val = pRenderState[i].uintValue;
4389	break;
4390
4391	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4392	glTexParameter GL_TEXTURE_WRAP_S
4393	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4394	renderState = D3DRS_WRAP0;
4395	val = pRenderState[i].uintValue;
4396	break;
4397
4398	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4399	glTexParameter GL_TEXTURE_WRAP_T
4400	renderState = D3DRS_WRAP1;
4401	val = pRenderState[i].uintValue;
4402	break;
4403
4404	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4405	glTexParameter GL_TEXTURE_WRAP_R
4406	renderState = D3DRS_WRAP2;
4407	val = pRenderState[i].uintValue;
4408	break;
4409
4410
4411	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4412	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4413	val = pRenderState[i].uintValue;
4414	break;
4415
4416
4417	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4418	renderState = D3DRS_BLENDOPALPHA;
4419	val = pRenderState[i].uintValue;
4420	break;
4421
4422	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4423	AssertFailed();
4424	/*
4425	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4426	val = pRenderState[i].uintValue;
4427	*/
4428	break;
4429
4430	#endif
4431	default:
4432	AssertFailed();
4433	break;
4434	}
4435
4436	if (enableCap != ~(GLenum)0)
4437	{
4438	if (val)
4439	glEnable(enableCap);
4440	else
4441	glDisable(enableCap);
4442	}
4443	}
4444
4445	return VINF_SUCCESS;
4446	}
4447
4448	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4449	{
4450	PVMSVGA3DCONTEXT pContext;
4451	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4452	PVMSVGA3DSURFACE pRenderTarget;
4453
4454	AssertReturn(pState, VERR_NO_MEMORY);
4455	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4456
4457	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4458
4459	if ( cid >= pState->cContexts
4460	\|\| pState->papContexts[cid]->id != cid)
4461	{
4462	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4463	return VERR_INVALID_PARAMETER;
4464	}
4465	pContext = pState->papContexts[cid];
4466	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4467
4468	/* Save for vm state save/restore. */
4469	pContext->state.aRenderTargets[type] = target.sid;
4470
4471	if (target.sid == SVGA3D_INVALID_ID)
4472	{
4473	/* Disable render target. */
4474	switch (type)
4475	{
4476	case SVGA3D_RT_DEPTH:
4477	case SVGA3D_RT_STENCIL:
4478	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4479	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4480	break;
4481
4482	case SVGA3D_RT_COLOR0:
4483	case SVGA3D_RT_COLOR1:
4484	case SVGA3D_RT_COLOR2:
4485	case SVGA3D_RT_COLOR3:
4486	case SVGA3D_RT_COLOR4:
4487	case SVGA3D_RT_COLOR5:
4488	case SVGA3D_RT_COLOR6:
4489	case SVGA3D_RT_COLOR7:
4490	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4491	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4492	break;
4493
4494	default:
4495	AssertFailedReturn(VERR_INVALID_PARAMETER);
4496	}
4497	return VINF_SUCCESS;
4498	}
4499
4500	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4501	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4502	pRenderTarget = pState->papSurfaces[target.sid];
4503
4504	switch (type)
4505	{
4506	case SVGA3D_RT_DEPTH:
4507	case SVGA3D_RT_STENCIL:
4508	#if 1
4509	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4510	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4511	{
4512	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4513	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4514	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4515	AssertRCReturn(rc, rc);
4516	}
4517
4518	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4519	Assert(!pRenderTarget->fDirty);
4520
4521	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4522
4523	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4524	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4525	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4526	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4527	#else
4528	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4529	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4530	{
4531	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4532	pContext = &pState->SharedCtx;
4533	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4534
4535	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4536	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4537	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
4538
4539	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4541
4542	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4543	pRenderTarget->internalFormatGL,
4544	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4545	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4547
4548	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4549	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4550
4551	pContext = pState->papContexts[cid];
4552	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4553	pRenderTarget->idWeakContextAssociation = cid;
4554	}
4555
4556	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4557	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4558	Assert(!pRenderTarget->fDirty);
4559	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4560
4561	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4562
4563	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4564	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4565	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4566	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4567	#endif
4568	break;
4569
4570	case SVGA3D_RT_COLOR0:
4571	case SVGA3D_RT_COLOR1:
4572	case SVGA3D_RT_COLOR2:
4573	case SVGA3D_RT_COLOR3:
4574	case SVGA3D_RT_COLOR4:
4575	case SVGA3D_RT_COLOR5:
4576	case SVGA3D_RT_COLOR6:
4577	case SVGA3D_RT_COLOR7:
4578	{
4579	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4580	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4581	{
4582	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));
4583	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4584	AssertRCReturn(rc, rc);
4585	}
4586
4587	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4588	Assert(!pRenderTarget->fDirty);
4589
4590	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4591
4592	GLenum textarget;
4593	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4594	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4595	else
4596	textarget = GL_TEXTURE_2D;
4597	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4598	textarget, pRenderTarget->oglId.texture, target.mipmap);
4599	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4600
4601	#ifdef DEBUG
4602	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4603	if (status != GL_FRAMEBUFFER_COMPLETE)
4604	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4605	#endif
4606	/** @todo use glDrawBuffers too? */
4607	break;
4608	}
4609
4610	default:
4611	AssertFailedReturn(VERR_INVALID_PARAMETER);
4612	}
4613
4614	return VINF_SUCCESS;
4615	}
4616
4617	#if 0
4618	/**
4619	* Convert SVGA texture combiner value to its D3D equivalent
4620	*/
4621	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4622	{
4623	switch (value)
4624	{
4625	case SVGA3D_TC_DISABLE:
4626	return D3DTOP_DISABLE;
4627	case SVGA3D_TC_SELECTARG1:
4628	return D3DTOP_SELECTARG1;
4629	case SVGA3D_TC_SELECTARG2:
4630	return D3DTOP_SELECTARG2;
4631	case SVGA3D_TC_MODULATE:
4632	return D3DTOP_MODULATE;
4633	case SVGA3D_TC_ADD:
4634	return D3DTOP_ADD;
4635	case SVGA3D_TC_ADDSIGNED:
4636	return D3DTOP_ADDSIGNED;
4637	case SVGA3D_TC_SUBTRACT:
4638	return D3DTOP_SUBTRACT;
4639	case SVGA3D_TC_BLENDTEXTUREALPHA:
4640	return D3DTOP_BLENDTEXTUREALPHA;
4641	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4642	return D3DTOP_BLENDDIFFUSEALPHA;
4643	case SVGA3D_TC_BLENDCURRENTALPHA:
4644	return D3DTOP_BLENDCURRENTALPHA;
4645	case SVGA3D_TC_BLENDFACTORALPHA:
4646	return D3DTOP_BLENDFACTORALPHA;
4647	case SVGA3D_TC_MODULATE2X:
4648	return D3DTOP_MODULATE2X;
4649	case SVGA3D_TC_MODULATE4X:
4650	return D3DTOP_MODULATE4X;
4651	case SVGA3D_TC_DSDT:
4652	AssertFailed(); /** @todo ??? */
4653	return D3DTOP_DISABLE;
4654	case SVGA3D_TC_DOTPRODUCT3:
4655	return D3DTOP_DOTPRODUCT3;
4656	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4657	return D3DTOP_BLENDTEXTUREALPHAPM;
4658	case SVGA3D_TC_ADDSIGNED2X:
4659	return D3DTOP_ADDSIGNED2X;
4660	case SVGA3D_TC_ADDSMOOTH:
4661	return D3DTOP_ADDSMOOTH;
4662	case SVGA3D_TC_PREMODULATE:
4663	return D3DTOP_PREMODULATE;
4664	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4665	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4666	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4667	return D3DTOP_MODULATECOLOR_ADDALPHA;
4668	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4669	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4670	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4671	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4672	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4673	return D3DTOP_BUMPENVMAPLUMINANCE;
4674	case SVGA3D_TC_MULTIPLYADD:
4675	return D3DTOP_MULTIPLYADD;
4676	case SVGA3D_TC_LERP:
4677	return D3DTOP_LERP;
4678	default:
4679	AssertFailed();
4680	return D3DTOP_DISABLE;
4681	}
4682	}
4683
4684	/**
4685	* Convert SVGA texture arg data value to its D3D equivalent
4686	*/
4687	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4688	{
4689	switch (value)
4690	{
4691	case SVGA3D_TA_CONSTANT:
4692	return D3DTA_CONSTANT;
4693	case SVGA3D_TA_PREVIOUS:
4694	return D3DTA_CURRENT; /* current = previous */
4695	case SVGA3D_TA_DIFFUSE:
4696	return D3DTA_DIFFUSE;
4697	case SVGA3D_TA_TEXTURE:
4698	return D3DTA_TEXTURE;
4699	case SVGA3D_TA_SPECULAR:
4700	return D3DTA_SPECULAR;
4701	default:
4702	AssertFailed();
4703	return 0;
4704	}
4705	}
4706
4707	/**
4708	* Convert SVGA texture transform flag value to its D3D equivalent
4709	*/
4710	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4711	{
4712	switch (value)
4713	{
4714	case SVGA3D_TEX_TRANSFORM_OFF:
4715	return D3DTTFF_DISABLE;
4716	case SVGA3D_TEX_TRANSFORM_S:
4717	return D3DTTFF_COUNT1; /** @todo correct? */
4718	case SVGA3D_TEX_TRANSFORM_T:
4719	return D3DTTFF_COUNT2; /** @todo correct? */
4720	case SVGA3D_TEX_TRANSFORM_R:
4721	return D3DTTFF_COUNT3; /** @todo correct? */
4722	case SVGA3D_TEX_TRANSFORM_Q:
4723	return D3DTTFF_COUNT4; /** @todo correct? */
4724	case SVGA3D_TEX_PROJECTED:
4725	return D3DTTFF_PROJECTED;
4726	default:
4727	AssertFailed();
4728	return 0;
4729	}
4730	}
4731	#endif
4732
4733	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4734	{
4735	switch (value)
4736	{
4737	case SVGA3D_TEX_ADDRESS_WRAP:
4738	return GL_REPEAT;
4739	case SVGA3D_TEX_ADDRESS_MIRROR:
4740	return GL_MIRRORED_REPEAT;
4741	case SVGA3D_TEX_ADDRESS_CLAMP:
4742	return GL_CLAMP_TO_EDGE;
4743	case SVGA3D_TEX_ADDRESS_BORDER:
4744	return GL_CLAMP_TO_BORDER;
4745	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4746	AssertFailed();
4747	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4748
4749	case SVGA3D_TEX_ADDRESS_EDGE:
4750	case SVGA3D_TEX_ADDRESS_INVALID:
4751	default:
4752	AssertFailed();
4753	return GL_REPEAT; /* default */
4754	}
4755	}
4756
4757	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4758	{
4759	switch (value)
4760	{
4761	case SVGA3D_TEX_FILTER_NONE:
4762	case SVGA3D_TEX_FILTER_LINEAR:
4763	return GL_LINEAR;
4764	case SVGA3D_TEX_FILTER_NEAREST:
4765	return GL_NEAREST;
4766	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4767	/** @todo */
4768	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4769	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4770	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4771	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4772	default:
4773	AssertFailed();
4774	return GL_LINEAR; /* default */
4775	}
4776	}
4777
4778	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4779	{
4780	/* flip the red and blue bytes */
4781	uint8_t blue = value & 0xff;
4782	uint8_t red = (value >> 16) & 0xff;
4783	return (value & 0xff00ff00) \| red \| (blue << 16);
4784	}
4785
4786	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4787	{
4788	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4789	GLenum currentStage = ~(GLenum)0;
4790	PVMSVGA3DCONTEXT pContext;
4791	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4792	AssertReturn(pState, VERR_NO_MEMORY);
4793
4794	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4795
4796	if ( cid >= pState->cContexts
4797	\|\| pState->papContexts[cid]->id != cid)
4798	{
4799	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4800	return VERR_INVALID_PARAMETER;
4801	}
4802	pContext = pState->papContexts[cid];
4803	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4804
4805	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4806	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4807
4808	for (uint32_t i = 0; i < cTextureStates; ++i)
4809	{
4810	GLenum textureType = ~(GLenum)0;
4811	#if 0
4812	GLenum samplerType = ~(GLenum)0;
4813	#endif
4814
4815	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4816	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4817
4818	/* Record the texture state for vm state saving. */
4819	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4820	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4821	{
4822	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4823	}
4824
4825	/* Activate the right texture unit for subsequent texture state changes. */
4826	if (pTextureState[i].stage != currentStage \|\| i == 0)
4827	{
4828	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4829	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4830	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4831	{
4832	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4833	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4834	currentStage = pTextureState[i].stage;
4835	}
4836	else
4837	{
4838	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4839	continue;
4840	}
4841
4842	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4843	{
4844	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4845	AssertRCReturn(rc, rc);
4846	}
4847	else
4848	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4849	}
4850
4851	switch (pTextureState[i].name)
4852	{
4853	case SVGA3D_TS_BUMPENVMAT00: /* float */
4854	case SVGA3D_TS_BUMPENVMAT01: /* float */
4855	case SVGA3D_TS_BUMPENVMAT10: /* float */
4856	case SVGA3D_TS_BUMPENVMAT11: /* float */
4857	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4858	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4859	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4860	break;
4861
4862	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4863	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4864	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4865	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4866	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4867	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4868	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4869	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4870	/** @todo not used by MesaGL */
4871	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4872	break;
4873	#if 0
4874
4875	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4876	textureType = D3DTSS_TEXCOORDINDEX;
4877	val = pTextureState[i].value;
4878	break;
4879
4880	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4881	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4882	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4883	break;
4884	#endif
4885
4886	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4887	{
4888	uint32_t const sid = pTextureState[i].value;
4889
4890	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4891	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4892
4893	/* Only if texture actually changed. */ /// @todo needs testing.
4894	if (pContext->aSidActiveTextures[currentStage] != sid)
4895	{
4896	if (pCurrentTextureSurface)
4897	{
4898	/* Unselect the currently associated texture. */
4899	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4900	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4901
4902	if (currentStage < 8)
4903	{
4904	/* Necessary for the fixed pipeline. */
4905	glDisable(pCurrentTextureSurface->targetGL);
4906	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4907	}
4908
4909	pCurrentTextureSurface = NULL;
4910	}
4911
4912	if (sid == SVGA3D_INVALID_ID)
4913	{
4914	Assert(pCurrentTextureSurface == NULL);
4915	}
4916	else
4917	{
4918	PVMSVGA3DSURFACE pSurface;
4919	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
4920	AssertRCReturn(rc, rc);
4921
4922	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
4923	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
4924	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
4925
4926	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
4927	{
4928	Log(("CreateTexture (%d,%d) levels=%d\n",
4929	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
4930	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
4931	AssertRCReturn(rc, rc);
4932	}
4933
4934	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
4935	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4936
4937	if (currentStage < 8)
4938	{
4939	/* Necessary for the fixed pipeline. */
4940	glEnable(pSurface->targetGL);
4941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4942	}
4943
4944	/* Remember the currently active texture. */
4945	pCurrentTextureSurface = pSurface;
4946
4947	/* Recreate the texture state as glBindTexture resets them all (sigh). */
4948	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
4949	{
4950	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
4951	{
4952	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
4953
4954	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
4955	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
4956	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
4957	}
4958	}
4959	}
4960
4961	pContext->aSidActiveTextures[currentStage] = sid;
4962	}
4963
4964	/* Finished; continue with the next one. */
4965	continue;
4966	}
4967
4968	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
4969	textureType = GL_TEXTURE_WRAP_R; /* R = W */
4970	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4971	break;
4972
4973	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
4974	textureType = GL_TEXTURE_WRAP_S; /* S = U */
4975	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4976	break;
4977
4978	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
4979	textureType = GL_TEXTURE_WRAP_T; /* T = V */
4980	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4981	break;
4982
4983	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
4984	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
4985	{
4986	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
4987	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
4988
4989	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
4990	textureType = GL_TEXTURE_MIN_FILTER;
4991	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
4992	{
4993	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
4994	{
4995	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4996	val = GL_NEAREST_MIPMAP_LINEAR;
4997	else
4998	val = GL_NEAREST_MIPMAP_NEAREST;
4999	}
5000	else
5001	{
5002	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5003	val = GL_LINEAR_MIPMAP_LINEAR;
5004	else
5005	val = GL_LINEAR_MIPMAP_NEAREST;
5006	}
5007	}
5008	else
5009	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5010	break;
5011	}
5012
5013	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5014	textureType = GL_TEXTURE_MAG_FILTER;
5015	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5016	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5017	break;
5018
5019	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5020	{
5021	GLfloat color[4]; /* red, green, blue, alpha */
5022	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5023
5024	GLenum targetGL;
5025	if (pCurrentTextureSurface)
5026	targetGL = pCurrentTextureSurface->targetGL;
5027	else
5028	{
5029	/* No texture bound, assume 2D. */
5030	targetGL = GL_TEXTURE_2D;
5031	}
5032
5033	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5034	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5035	break;
5036	}
5037
5038	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5039	{
5040	GLenum targetGL;
5041	if (pCurrentTextureSurface)
5042	targetGL = pCurrentTextureSurface->targetGL;
5043	else
5044	{
5045	/* No texture bound, assume 2D. */
5046	targetGL = GL_TEXTURE_2D;
5047	}
5048
5049	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5051	break;
5052	}
5053
5054	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5055	textureType = GL_TEXTURE_BASE_LEVEL;
5056	val = pTextureState[i].value;
5057	break;
5058
5059	#if 0
5060	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5061	samplerType = D3DSAMP_MAXANISOTROPY;
5062	val = pTextureState[i].value; /* Identical?? */
5063	break;
5064
5065	case SVGA3D_TS_GAMMA: /* float */
5066	samplerType = D3DSAMP_SRGBTEXTURE;
5067	/* Boolean in D3D */
5068	if (pTextureState[i].floatValue == 1.0f)
5069	val = FALSE;
5070	else
5071	val = TRUE;
5072	break;
5073	#endif
5074	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5075	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5076	AssertFailed();
5077	break;
5078
5079	default:
5080	//AssertFailed();
5081	break;
5082	}
5083
5084	if (textureType != ~(GLenum)0)
5085	{
5086	GLenum targetGL;
5087	if (pCurrentTextureSurface)
5088	targetGL = pCurrentTextureSurface->targetGL;
5089	else
5090	{
5091	/* No texture bound, assume 2D. */
5092	targetGL = GL_TEXTURE_2D;
5093	}
5094
5095	glTexParameteri(targetGL, textureType, val);
5096	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5097	}
5098	}
5099
5100	return VINF_SUCCESS;
5101	}
5102
5103	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5104	{
5105	PVMSVGA3DCONTEXT pContext;
5106	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5107	AssertReturn(pState, VERR_NO_MEMORY);
5108	GLenum oglFace;
5109
5110	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5111
5112	if ( cid >= pState->cContexts
5113	\|\| pState->papContexts[cid]->id != cid)
5114	{
5115	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5116	return VERR_INVALID_PARAMETER;
5117	}
5118	pContext = pState->papContexts[cid];
5119	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5120
5121	switch (face)
5122	{
5123	case SVGA3D_FACE_NONE:
5124	case SVGA3D_FACE_FRONT:
5125	oglFace = GL_FRONT;
5126	break;
5127
5128	case SVGA3D_FACE_BACK:
5129	oglFace = GL_BACK;
5130	break;
5131
5132	case SVGA3D_FACE_FRONT_BACK:
5133	oglFace = GL_FRONT_AND_BACK;
5134	break;
5135
5136	default:
5137	AssertFailedReturn(VERR_INVALID_PARAMETER);
5138	}
5139
5140	/* Save for vm state save/restore. */
5141	pContext->state.aMaterial[face].fValid = true;
5142	pContext->state.aMaterial[face].material = *pMaterial;
5143	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5144
5145	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5146	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5147	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5148	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5149	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5150	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5151
5152	return VINF_SUCCESS;
5153	}
5154
5155	/** @todo Move into separate library as we are using logic from Wine here. */
5156	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5157	{
5158	PVMSVGA3DCONTEXT pContext;
5159	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5160	AssertReturn(pState, VERR_NO_MEMORY);
5161	float QuadAttenuation;
5162
5163	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5164
5165	if ( cid >= pState->cContexts
5166	\|\| pState->papContexts[cid]->id != cid)
5167	{
5168	Log(("vmsvga3dSetLightData invalid context id!\n"));
5169	return VERR_INVALID_PARAMETER;
5170	}
5171	pContext = pState->papContexts[cid];
5172	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5173
5174	/* Store for vm state save/restore */
5175	if (index < SVGA3D_MAX_LIGHTS)
5176	{
5177	pContext->state.aLightData[index].fValidData = true;
5178	pContext->state.aLightData[index].data = *pData;
5179	}
5180	else
5181	AssertFailed();
5182
5183	if ( pData->attenuation0 < 0.0f
5184	\|\| pData->attenuation1 < 0.0f
5185	\|\| pData->attenuation2 < 0.0f)
5186	{
5187	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5188	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5189	}
5190
5191	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5192	glMatrixMode(GL_MODELVIEW);
5193	glPushMatrix();
5194	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5195
5196	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5197	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5198	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5199
5200	if (pData->range * pData->range >= FLT_MIN)
5201	QuadAttenuation = 1.4f / (pData->range * pData->range);
5202	else
5203	QuadAttenuation = 0.0f;
5204
5205	switch (pData->type)
5206	{
5207	case SVGA3D_LIGHTTYPE_POINT:
5208	{
5209	GLfloat position[4];
5210
5211	position[0] = pData->position[0];
5212	position[1] = pData->position[1];
5213	position[2] = pData->position[2];
5214	position[3] = 1.0f;
5215
5216	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5217	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5218
5219	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5220	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5221
5222	/* Attenuation - Are these right? guessing... */
5223	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5224	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5225
5226	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5227	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5228
5229	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5230	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5231
5232	/** @todo range */
5233	break;
5234	}
5235
5236	case SVGA3D_LIGHTTYPE_SPOT1:
5237	{
5238	GLfloat exponent;
5239	GLfloat position[4];
5240	const GLfloat pi = 4.0f * atanf(1.0f);
5241
5242	position[0] = pData->position[0];
5243	position[1] = pData->position[1];
5244	position[2] = pData->position[2];
5245	position[3] = 1.0f;
5246
5247	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5248	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5249
5250	position[0] = pData->direction[0];
5251	position[1] = pData->direction[1];
5252	position[2] = pData->direction[2];
5253	position[3] = 1.0f;
5254
5255	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5256	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5257
5258	/*
5259	* opengl-ish and d3d-ish spot lights use too different models for the
5260	* light "intensity" as a function of the angle towards the main light direction,
5261	* so we only can approximate very roughly.
5262	* however spot lights are rather rarely used in games (if ever used at all).
5263	* furthermore if still used, probably nobody pays attention to such details.
5264	*/
5265	if (pData->falloff == 0)
5266	{
5267	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5268	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5269	* will always be 1.0 for both of them, and we don't have to care for the
5270	* rest of the rather complex calculation
5271	*/
5272	exponent = 0.0f;
5273	}
5274	else
5275	{
5276	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5277	if (rho < 0.0001f)
5278	rho = 0.0001f;
5279	exponent = -0.3f/log(cos(rho/2));
5280	}
5281	if (exponent > 128.0f)
5282	exponent = 128.0f;
5283
5284	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5285	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5286
5287	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5288	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5289
5290	/* Attenuation - Are these right? guessing... */
5291	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5292	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5293
5294	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5295	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5296
5297	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5298	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5299
5300	/** @todo range */
5301	break;
5302	}
5303
5304	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5305	{
5306	GLfloat position[4];
5307
5308	position[0] = -pData->direction[0];
5309	position[1] = -pData->direction[1];
5310	position[2] = -pData->direction[2];
5311	position[3] = 0.0f;
5312
5313	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5314	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5315
5316	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5317	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5318
5319	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5320	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5321	break;
5322	}
5323
5324	case SVGA3D_LIGHTTYPE_SPOT2:
5325	default:
5326	Log(("Unsupported light type!!\n"));
5327	return VERR_INVALID_PARAMETER;
5328	}
5329
5330	/* Restore the modelview matrix */
5331	glPopMatrix();
5332
5333	return VINF_SUCCESS;
5334	}
5335
5336	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5337	{
5338	PVMSVGA3DCONTEXT pContext;
5339	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5340	AssertReturn(pState, VERR_NO_MEMORY);
5341
5342	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5343
5344	if ( cid >= pState->cContexts
5345	\|\| pState->papContexts[cid]->id != cid)
5346	{
5347	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5348	return VERR_INVALID_PARAMETER;
5349	}
5350	pContext = pState->papContexts[cid];
5351	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5352
5353	/* Store for vm state save/restore */
5354	if (index < SVGA3D_MAX_LIGHTS)
5355	pContext->state.aLightData[index].fEnabled = !!enabled;
5356	else
5357	AssertFailed();
5358
5359	if (enabled)
5360	{
5361	/* Load the default settings if none have been set yet. */
5362	if (!pContext->state.aLightData[index].fValidData)
5363	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5364	glEnable(GL_LIGHT0 + index);
5365	}
5366	else
5367	glDisable(GL_LIGHT0 + index);
5368
5369	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5370	return VINF_SUCCESS;
5371	}
5372
5373	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5374	{
5375	PVMSVGA3DCONTEXT pContext;
5376	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5377	AssertReturn(pState, VERR_NO_MEMORY);
5378
5379	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5380
5381	if ( cid >= pState->cContexts
5382	\|\| pState->papContexts[cid]->id != cid)
5383	{
5384	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5385	return VERR_INVALID_PARAMETER;
5386	}
5387	pContext = pState->papContexts[cid];
5388	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5389
5390	/* Save for vm state save/restore. */
5391	pContext->state.RectViewPort = *pRect;
5392	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5393
5394	/** @todo y-inversion for partial viewport coordinates? */
5395	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5396	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5397
5398	/* Reset the projection matrix as that relies on the viewport setting. */
5399	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5400	{
5401	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5402	}
5403	else
5404	{
5405	float matrix[16];
5406
5407	/* identity matrix if no matrix set. */
5408	memset(matrix, 0, sizeof(matrix));
5409	matrix[0] = 1.0;
5410	matrix[5] = 1.0;
5411	matrix[10] = 1.0;
5412	matrix[15] = 1.0;
5413	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5414	}
5415
5416	return VINF_SUCCESS;
5417	}
5418
5419	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5420	{
5421	PVMSVGA3DCONTEXT pContext;
5422	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5423	AssertReturn(pState, VERR_NO_MEMORY);
5424	double oglPlane[4];
5425
5426	Log(("vmsvga3dSetClipPlane cid=%x %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5427	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5428
5429	if ( cid >= pState->cContexts
5430	\|\| pState->papContexts[cid]->id != cid)
5431	{
5432	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5433	return VERR_INVALID_PARAMETER;
5434	}
5435	pContext = pState->papContexts[cid];
5436	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5437
5438	/* Store for vm state save/restore. */
5439	pContext->state.aClipPlane[index].fValid = true;
5440	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5441
5442	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5443	oglPlane[0] = (double)plane[0];
5444	oglPlane[1] = (double)plane[1];
5445	oglPlane[2] = (double)plane[2];
5446	oglPlane[3] = (double)plane[3];
5447
5448	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5450
5451	return VINF_SUCCESS;
5452	}
5453
5454	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5455	{
5456	PVMSVGA3DCONTEXT pContext;
5457	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5458	AssertReturn(pState, VERR_NO_MEMORY);
5459
5460	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5461
5462	if ( cid >= pState->cContexts
5463	\|\| pState->papContexts[cid]->id != cid)
5464	{
5465	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5466	return VERR_INVALID_PARAMETER;
5467	}
5468	pContext = pState->papContexts[cid];
5469	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5470
5471	/* Store for vm state save/restore. */
5472	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5473	pContext->state.RectScissor = *pRect;
5474
5475	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5476	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5477
5478	return VINF_SUCCESS;
5479	}
5480
5481	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5482	{
5483	/* Convert byte color components to float (0-1.0) */
5484	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5485	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5486	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5487	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5488	}
5489
5490	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5491	uint32_t cRects, SVGA3dRect *pRect)
5492	{
5493	GLbitfield mask = 0;
5494	PVMSVGA3DCONTEXT pContext;
5495	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5496	AssertReturn(pState, VERR_NO_MEMORY);
5497	GLboolean fDepthWriteEnabled = GL_FALSE;
5498
5499	Log(("vmsvga3dCommandClear cid=%x clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5500
5501	if ( cid >= pState->cContexts
5502	\|\| pState->papContexts[cid]->id != cid)
5503	{
5504	Log(("vmsvga3dCommandClear invalid context id!\n"));
5505	return VERR_INVALID_PARAMETER;
5506	}
5507	pContext = pState->papContexts[cid];
5508	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5509
5510	if (clearFlag & SVGA3D_CLEAR_COLOR)
5511	{
5512	GLfloat red, green, blue, alpha;
5513
5514	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5515
5516	/* Set the color clear value. */
5517	glClearColor(red, green, blue, alpha);
5518
5519	mask \|= GL_COLOR_BUFFER_BIT;
5520	}
5521	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5522	{
5523	/** @todo possibly the same problem as with glDepthMask */
5524	glClearStencil(stencil);
5525	mask \|= GL_STENCIL_BUFFER_BIT;
5526	}
5527	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5528	{
5529	glClearDepth((GLdouble)depth);
5530	mask \|= GL_DEPTH_BUFFER_BIT;
5531
5532	/* glClear will not clear the depth buffer if writing is disabled. */
5533	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5534	if (fDepthWriteEnabled == GL_FALSE)
5535	glDepthMask(GL_TRUE);
5536	}
5537
5538	if (cRects)
5539	{
5540	/* Save the current scissor test bit and scissor box. */
5541	glPushAttrib(GL_SCISSOR_BIT);
5542	glEnable(GL_SCISSOR_TEST);
5543	for (unsigned i=0; i < cRects; i++)
5544	{
5545	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));
5546	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5547	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5548	glClear(mask);
5549	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5550	}
5551	/* Restore the old scissor test bit and box */
5552	glPopAttrib();
5553	}
5554	else
5555	{
5556	glClear(mask);
5557	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5558	}
5559
5560	/* Restore depth write state. */
5561	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5562	&& fDepthWriteEnabled == GL_FALSE)
5563	glDepthMask(GL_FALSE);
5564
5565	return VINF_SUCCESS;
5566	}
5567
5568	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5569	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5570	{
5571	normalized = GL_FALSE;
5572	switch (identity.type)
5573	{
5574	case SVGA3D_DECLTYPE_FLOAT1:
5575	size = 1;
5576	type = GL_FLOAT;
5577	break;
5578	case SVGA3D_DECLTYPE_FLOAT2:
5579	size = 2;
5580	type = GL_FLOAT;
5581	break;
5582	case SVGA3D_DECLTYPE_FLOAT3:
5583	size = 3;
5584	type = GL_FLOAT;
5585	break;
5586	case SVGA3D_DECLTYPE_FLOAT4:
5587	size = 4;
5588	type = GL_FLOAT;
5589	break;
5590
5591	case SVGA3D_DECLTYPE_D3DCOLOR:
5592	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5593	type = GL_UNSIGNED_BYTE;
5594	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5595	break;
5596
5597	case SVGA3D_DECLTYPE_UBYTE4N:
5598	normalized = GL_TRUE;
5599	RT_FALL_THRU();
5600	case SVGA3D_DECLTYPE_UBYTE4:
5601	size = 4;
5602	type = GL_UNSIGNED_BYTE;
5603	break;
5604
5605	case SVGA3D_DECLTYPE_SHORT2N:
5606	normalized = GL_TRUE;
5607	RT_FALL_THRU();
5608	case SVGA3D_DECLTYPE_SHORT2:
5609	size = 2;
5610	type = GL_SHORT;
5611	break;
5612
5613	case SVGA3D_DECLTYPE_SHORT4N:
5614	normalized = GL_TRUE;
5615	RT_FALL_THRU();
5616	case SVGA3D_DECLTYPE_SHORT4:
5617	size = 4;
5618	type = GL_SHORT;
5619	break;
5620
5621	case SVGA3D_DECLTYPE_USHORT4N:
5622	normalized = GL_TRUE;
5623	size = 4;
5624	type = GL_UNSIGNED_SHORT;
5625	break;
5626
5627	case SVGA3D_DECLTYPE_USHORT2N:
5628	normalized = GL_TRUE;
5629	size = 2;
5630	type = GL_UNSIGNED_SHORT;
5631	break;
5632
5633	case SVGA3D_DECLTYPE_UDEC3:
5634	size = 3;
5635	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5636	break;
5637
5638	case SVGA3D_DECLTYPE_DEC3N:
5639	normalized = true;
5640	size = 3;
5641	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5642	break;
5643
5644	case SVGA3D_DECLTYPE_FLOAT16_2:
5645	size = 2;
5646	type = GL_HALF_FLOAT;
5647	break;
5648	case SVGA3D_DECLTYPE_FLOAT16_4:
5649	size = 4;
5650	type = GL_HALF_FLOAT;
5651	break;
5652	default:
5653	AssertFailedReturn(VERR_INVALID_PARAMETER);
5654	}
5655
5656	//pVertexElement->Method = identity.method;
5657	//pVertexElement->Usage = identity.usage;
5658
5659	return VINF_SUCCESS;
5660	}
5661
5662	/* Convert VMWare primitive type to its OpenGL equivalent. */
5663	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5664	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5665	{
5666	switch (PrimitiveType)
5667	{
5668	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5669	*pMode = GL_TRIANGLES;
5670	pcVertices = cPrimitiveCount 3;
5671	break;
5672	case SVGA3D_PRIMITIVE_POINTLIST:
5673	*pMode = GL_POINTS;
5674	*pcVertices = cPrimitiveCount;
5675	break;
5676	case SVGA3D_PRIMITIVE_LINELIST:
5677	*pMode = GL_LINES;
5678	pcVertices = cPrimitiveCount 2;
5679	break;
5680	case SVGA3D_PRIMITIVE_LINESTRIP:
5681	*pMode = GL_LINE_STRIP;
5682	*pcVertices = cPrimitiveCount + 1;
5683	break;
5684	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5685	*pMode = GL_TRIANGLE_STRIP;
5686	*pcVertices = cPrimitiveCount + 2;
5687	break;
5688	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5689	*pMode = GL_TRIANGLE_FAN;
5690	*pcVertices = cPrimitiveCount + 2;
5691	break;
5692	default:
5693	return VERR_INVALID_PARAMETER;
5694	}
5695	return VINF_SUCCESS;
5696	}
5697
5698	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5699	{
5700	int rc;
5701
5702	/* Reset the view matrix (also takes the world matrix into account). */
5703	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5704	{
5705	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5706	}
5707	else
5708	{
5709	float matrix[16];
5710
5711	/* identity matrix if no matrix set. */
5712	memset(matrix, 0, sizeof(matrix));
5713	matrix[0] = 1.0;
5714	matrix[5] = 1.0;
5715	matrix[10] = 1.0;
5716	matrix[15] = 1.0;
5717	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5718	}
5719
5720	/* Reset the projection matrix. */
5721	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5722	{
5723	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5724	}
5725	else
5726	{
5727	float matrix[16];
5728
5729	/* identity matrix if no matrix set. */
5730	memset(matrix, 0, sizeof(matrix));
5731	matrix[0] = 1.0;
5732	matrix[5] = 1.0;
5733	matrix[10] = 1.0;
5734	matrix[15] = 1.0;
5735	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5736	}
5737	AssertRC(rc);
5738	return rc;
5739	}
5740
5741	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5742	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5743	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5744	{
5745	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5746	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5747	PVMSVGA3DSURFACE pVertexSurface;
5748
5749	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5750	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5751
5752	pVertexSurface = pState->papSurfaces[sidVertex];
5753	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5754
5755	/* Create and/or bind the vertex buffer. */
5756	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5757	{
5758	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5759	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5760	pContext = &pState->SharedCtx;
5761	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5762
5763	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5764	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5765	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
5766
5767	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5768	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5769
5770	Assert(pVertexSurface->fDirty);
5771	/** @todo rethink usage dynamic/static */
5772	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5773	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5774
5775	pVertexSurface->pMipmapLevels[0].fDirty = false;
5776	pVertexSurface->fDirty = false;
5777
5778	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5779
5780	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5781	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5782
5783	pContext = pSavedCtx;
5784	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5785	}
5786
5787	Assert(pVertexSurface->fDirty == false);
5788	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5789	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5790
5791	/* Setup the vertex declarations. */
5792	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5793	{
5794	GLint size;
5795	GLenum type;
5796	GLboolean normalized;
5797	GLuint index = iVertexDeclBase + iVertex;
5798
5799	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));
5800
5801	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5802	AssertRCReturn(rc, rc);
5803
5804	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5805	{
5806	/* Use numbered vertex arrays when shaders are active. */
5807	pState->ext.glEnableVertexAttribArray(index);
5808	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5809	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5810	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5811	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5812
5813	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5814	pState->ext.glVertexAttribDivisor(index, divisor);
5815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5816
5817	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5818	}
5819	else
5820	{
5821	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5822	switch (pVertexDecl[iVertex].identity.usage)
5823	{
5824	case SVGA3D_DECLUSAGE_POSITIONT:
5825	case SVGA3D_DECLUSAGE_POSITION:
5826	{
5827	glEnableClientState(GL_VERTEX_ARRAY);
5828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5829	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5830	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5831	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5832	break;
5833	}
5834	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5835	AssertFailed();
5836	break;
5837	case SVGA3D_DECLUSAGE_BLENDINDICES:
5838	AssertFailed();
5839	break;
5840	case SVGA3D_DECLUSAGE_NORMAL:
5841	glEnableClientState(GL_NORMAL_ARRAY);
5842	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5843	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5844	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5845	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5846	break;
5847	case SVGA3D_DECLUSAGE_PSIZE:
5848	AssertFailed();
5849	break;
5850	case SVGA3D_DECLUSAGE_TEXCOORD:
5851	/* Specify the affected texture unit. */
5852	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5853	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5854	#else
5855	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5856	#endif
5857	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5858	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5859	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5860	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5861	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5862	break;
5863	case SVGA3D_DECLUSAGE_TANGENT:
5864	AssertFailed();
5865	break;
5866	case SVGA3D_DECLUSAGE_BINORMAL:
5867	AssertFailed();
5868	break;
5869	case SVGA3D_DECLUSAGE_TESSFACTOR:
5870	AssertFailed();
5871	break;
5872	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5873	glEnableClientState(GL_COLOR_ARRAY);
5874	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5875	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5876	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5877	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5878	break;
5879	case SVGA3D_DECLUSAGE_FOG:
5880	glEnableClientState(GL_FOG_COORD_ARRAY);
5881	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5882	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5883	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5884	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5885	break;
5886	case SVGA3D_DECLUSAGE_DEPTH:
5887	AssertFailed();
5888	break;
5889	case SVGA3D_DECLUSAGE_SAMPLE:
5890	AssertFailed();
5891	break;
5892	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5893	}
5894	}
5895
5896	#ifdef LOG_ENABLED
5897	if (pVertexDecl[iVertex].array.stride == 0)
5898	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5899	#endif
5900	}
5901
5902	return VINF_SUCCESS;
5903	}
5904
5905	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5906	{
5907	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5908
5909	/* Clean up the vertex declarations. */
5910	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5911	{
5912	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
5913	{
5914	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
5915	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
5916	vmsvga3dResetTransformMatrices(pThis, pContext);
5917	}
5918
5919	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5920	{
5921	/* Use numbered vertex arrays when shaders are active. */
5922	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5923	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5924	}
5925	else
5926	{
5927	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5928	switch (pVertexDecl[iVertex].identity.usage)
5929	{
5930	case SVGA3D_DECLUSAGE_POSITION:
5931	case SVGA3D_DECLUSAGE_POSITIONT:
5932	glDisableClientState(GL_VERTEX_ARRAY);
5933	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5934	break;
5935	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5936	break;
5937	case SVGA3D_DECLUSAGE_BLENDINDICES:
5938	break;
5939	case SVGA3D_DECLUSAGE_NORMAL:
5940	glDisableClientState(GL_NORMAL_ARRAY);
5941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5942	break;
5943	case SVGA3D_DECLUSAGE_PSIZE:
5944	break;
5945	case SVGA3D_DECLUSAGE_TEXCOORD:
5946	/* Specify the affected texture unit. */
5947	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5948	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5949	#else
5950	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5951	#endif
5952	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5953	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5954	break;
5955	case SVGA3D_DECLUSAGE_TANGENT:
5956	break;
5957	case SVGA3D_DECLUSAGE_BINORMAL:
5958	break;
5959	case SVGA3D_DECLUSAGE_TESSFACTOR:
5960	break;
5961	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
5962	glDisableClientState(GL_COLOR_ARRAY);
5963	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5964	break;
5965	case SVGA3D_DECLUSAGE_FOG:
5966	glDisableClientState(GL_FOG_COORD_ARRAY);
5967	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5968	break;
5969	case SVGA3D_DECLUSAGE_DEPTH:
5970	break;
5971	case SVGA3D_DECLUSAGE_SAMPLE:
5972	break;
5973	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5974	}
5975	}
5976	}
5977	/* Unbind the vertex buffer after usage. */
5978	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
5979	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5980	return VINF_SUCCESS;
5981	}
5982
5983	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
5984	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
5985	SVGA3dVertexDivisor *pVertexDivisor)
5986	{
5987	RT_NOREF(pVertexDivisor);
5988	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5989	AssertReturn(pState, VERR_INTERNAL_ERROR);
5990	PVMSVGA3DCONTEXT pContext;
5991	int rc = VERR_NOT_IMPLEMENTED;
5992	uint32_t iCurrentVertex;
5993
5994	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
5995
5996	/* Caller already check these, but it cannot hurt to check again... */
5997	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
5998	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
5999	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6000
6001	if (!cVertexDivisor)
6002	pVertexDivisor = NULL; /* Be sure. */
6003
6004	if ( cid >= pState->cContexts
6005	\|\| pState->papContexts[cid]->id != cid)
6006	{
6007	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6008	return VERR_INVALID_PARAMETER;
6009	}
6010	pContext = pState->papContexts[cid];
6011	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6012
6013	/* Check for pretransformed vertex declarations. */
6014	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6015	{
6016	switch (pVertexDecl[iVertex].identity.usage)
6017	{
6018	case SVGA3D_DECLUSAGE_POSITIONT:
6019	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6020	RT_FALL_THRU();
6021	case SVGA3D_DECLUSAGE_POSITION:
6022	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6023	pContext->state.RectViewPort.h,
6024	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6025	break;
6026	default: /* Shut up MSC. */ break;
6027	}
6028	}
6029
6030	/* Try to figure out if instancing is used.
6031	* Support simple instancing case with one set of indexed data and one set per-instance data.
6032	*/
6033	uint32_t cInstances = 0;
6034	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6035	{
6036	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6037	{
6038	if (cInstances == 0)
6039	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6040	else
6041	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6042	}
6043	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6044	{
6045	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6046	}
6047	}
6048
6049	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6050	if (pContext->pShaderContext)
6051	{
6052	uint32_t rtHeight = 0;
6053
6054	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6055	{
6056	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6057	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6058	}
6059
6060	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6061	}
6062
6063	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6064	iCurrentVertex = 0;
6065	while (iCurrentVertex < numVertexDecls)
6066	{
6067	uint32_t sidVertex = SVGA_ID_INVALID;
6068	uint32_t iVertex;
6069
6070	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6071	{
6072	if ( sidVertex != SVGA_ID_INVALID
6073	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6074	)
6075	break;
6076	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6077	}
6078
6079	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6080	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6081	AssertRCReturn(rc, rc);
6082
6083	iCurrentVertex = iVertex;
6084	}
6085
6086	/* Now draw the primitives. */
6087	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6088	{
6089	GLenum modeDraw;
6090	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6091	PVMSVGA3DSURFACE pIndexSurface = NULL;
6092	unsigned cVertices;
6093
6094	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6095	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6096	if (RT_FAILURE(rc))
6097	{
6098	AssertRC(rc);
6099	goto internal_error;
6100	}
6101
6102	if (sidIndex != SVGA3D_INVALID_ID)
6103	{
6104	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6105
6106	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6107	\|\| sidIndex >= pState->cSurfaces
6108	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6109	{
6110	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6111	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6112	rc = VERR_INVALID_PARAMETER;
6113	goto internal_error;
6114	}
6115	pIndexSurface = pState->papSurfaces[sidIndex];
6116	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6117
6118	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6119	{
6120	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6121	pContext = &pState->SharedCtx;
6122	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6123
6124	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6126	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6127
6128	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6130
6131	Assert(pIndexSurface->fDirty);
6132
6133	/** @todo rethink usage dynamic/static */
6134	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6135	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6136
6137	pIndexSurface->pMipmapLevels[0].fDirty = false;
6138	pIndexSurface->fDirty = false;
6139
6140	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6141
6142	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6143	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6144
6145	pContext = pState->papContexts[cid];
6146	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6147	}
6148	Assert(pIndexSurface->fDirty == false);
6149
6150	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6152	}
6153
6154	if (!pIndexSurface)
6155	{
6156	/* Render without an index buffer */
6157	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6158	if (cInstances == 0)
6159	{
6160	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6161	}
6162	else
6163	{
6164	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6165	}
6166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6167	}
6168	else
6169	{
6170	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6171
6172	GLenum indexType;
6173	switch (pRange[iPrimitive].indexWidth)
6174	{
6175	case 1: indexType = GL_UNSIGNED_BYTE; break;
6176	case 2: indexType = GL_UNSIGNED_SHORT; break;
6177	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
6178	RT_FALL_THROUGH();
6179	case 4: indexType = GL_UNSIGNED_INT; break;
6180	}
6181
6182	Log(("DrawIndexedPrimitive %x cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pVertexDecl[0].rangeHint.first, pVertexDecl[0].rangeHint.last, pRange[iPrimitive].indexArray.offset, pRange[iPrimitive].primitiveCount, pRange[iPrimitive].indexWidth, pRange[iPrimitive].indexBias));
6183	if (cInstances == 0)
6184	{
6185	/* Render with an index buffer */
6186	if (pRange[iPrimitive].indexBias == 0)
6187	glDrawElements(modeDraw,
6188	cVertices,
6189	indexType,
6190	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6191	else
6192	pState->ext.glDrawElementsBaseVertex(modeDraw,
6193	cVertices,
6194	indexType,
6195	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6196	pRange[iPrimitive].indexBias); /* basevertex */
6197	}
6198	else
6199	{
6200	/* Render with an index buffer */
6201	if (pRange[iPrimitive].indexBias == 0)
6202	pState->ext.glDrawElementsInstanced(modeDraw,
6203	cVertices,
6204	indexType,
6205	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6206	cInstances);
6207	else
6208	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6209	cVertices,
6210	indexType,
6211	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6212	cInstances,
6213	pRange[iPrimitive].indexBias); /* basevertex */
6214	}
6215	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6216
6217	/* Unbind the index buffer after usage. */
6218	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6219	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6220	}
6221	}
6222
6223	internal_error:
6224
6225	/* Deactivate the vertex declarations. */
6226	iCurrentVertex = 0;
6227	while (iCurrentVertex < numVertexDecls)
6228	{
6229	uint32_t sidVertex = SVGA_ID_INVALID;
6230	uint32_t iVertex;
6231
6232	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6233	{
6234	if ( sidVertex != SVGA_ID_INVALID
6235	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6236	)
6237	break;
6238	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6239	}
6240
6241	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6242	AssertRCReturn(rc, rc);
6243
6244	iCurrentVertex = iVertex;
6245	}
6246	#ifdef DEBUG
6247	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6248	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6249	{
6250	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6251	{
6252	PVMSVGA3DSURFACE pTexture;
6253	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6254	AssertContinue(RT_SUCCESS(rc2));
6255
6256	GLint activeTextureUnit = 0;
6257	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6258	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6259
6260	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6261	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6262
6263	GLint activeTexture = 0;
6264	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6265	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6266
6267	pState->ext.glActiveTexture(activeTextureUnit);
6268	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6269
6270	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6271	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6272	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6273	}
6274	}
6275	#endif
6276
6277	#if 0
6278	/* Dump render target to a bitmap. */
6279	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6280	{
6281	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6282	PVMSVGA3DSURFACE pSurface;
6283	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6284	if (RT_SUCCESS(rc2))
6285	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6286	}
6287	#endif
6288
6289	return rc;
6290	}
6291
6292
6293	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6294	{
6295	PVMSVGA3DCONTEXT pContext;
6296	PVMSVGA3DSHADER pShader;
6297	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6298	AssertReturn(pState, VERR_NO_MEMORY);
6299	int rc;
6300
6301	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6302	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6303
6304	if ( cid >= pState->cContexts
6305	\|\| pState->papContexts[cid]->id != cid)
6306	{
6307	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6308	return VERR_INVALID_PARAMETER;
6309	}
6310	pContext = pState->papContexts[cid];
6311	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6312
6313	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6314	if (type == SVGA3D_SHADERTYPE_VS)
6315	{
6316	if (shid >= pContext->cVertexShaders)
6317	{
6318	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6319	AssertReturn(pvNew, VERR_NO_MEMORY);
6320	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6321	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6322	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6323	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6324	pContext->cVertexShaders = shid + 1;
6325	}
6326	/* If one already exists with this id, then destroy it now. */
6327	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6328	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6329
6330	pShader = &pContext->paVertexShader[shid];
6331	}
6332	else
6333	{
6334	Assert(type == SVGA3D_SHADERTYPE_PS);
6335	if (shid >= pContext->cPixelShaders)
6336	{
6337	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6338	AssertReturn(pvNew, VERR_NO_MEMORY);
6339	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6340	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6341	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6342	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6343	pContext->cPixelShaders = shid + 1;
6344	}
6345	/* If one already exists with this id, then destroy it now. */
6346	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6347	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6348
6349	pShader = &pContext->paPixelShader[shid];
6350	}
6351
6352	memset(pShader, 0, sizeof(*pShader));
6353	pShader->id = shid;
6354	pShader->cid = cid;
6355	pShader->type = type;
6356	pShader->cbData = cbData;
6357	pShader->pShaderProgram = RTMemAllocZ(cbData);
6358	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6359	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6360
6361	#ifdef DUMP_SHADER_DISASSEMBLY
6362	LPD3DXBUFFER pDisassembly;
6363	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6364	if (hr == D3D_OK)
6365	{
6366	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6367	pDisassembly->Release();
6368	}
6369	#endif
6370
6371	switch (type)
6372	{
6373	case SVGA3D_SHADERTYPE_VS:
6374	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6375	break;
6376
6377	case SVGA3D_SHADERTYPE_PS:
6378	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6379	break;
6380
6381	default:
6382	AssertFailedReturn(VERR_INVALID_PARAMETER);
6383	}
6384	if (rc != VINF_SUCCESS)
6385	{
6386	RTMemFree(pShader->pShaderProgram);
6387	memset(pShader, 0, sizeof(*pShader));
6388	pShader->id = SVGA3D_INVALID_ID;
6389	}
6390
6391	return rc;
6392	}
6393
6394	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6395	{
6396	PVMSVGA3DCONTEXT pContext;
6397	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6398	AssertReturn(pState, VERR_NO_MEMORY);
6399	PVMSVGA3DSHADER pShader = NULL;
6400	int rc;
6401
6402	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6403
6404	if ( cid >= pState->cContexts
6405	\|\| pState->papContexts[cid]->id != cid)
6406	{
6407	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6408	return VERR_INVALID_PARAMETER;
6409	}
6410	pContext = pState->papContexts[cid];
6411	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6412
6413	if (type == SVGA3D_SHADERTYPE_VS)
6414	{
6415	if ( shid < pContext->cVertexShaders
6416	&& pContext->paVertexShader[shid].id == shid)
6417	{
6418	pShader = &pContext->paVertexShader[shid];
6419	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6420	AssertRC(rc);
6421	}
6422	}
6423	else
6424	{
6425	Assert(type == SVGA3D_SHADERTYPE_PS);
6426	if ( shid < pContext->cPixelShaders
6427	&& pContext->paPixelShader[shid].id == shid)
6428	{
6429	pShader = &pContext->paPixelShader[shid];
6430	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6431	AssertRC(rc);
6432	}
6433	}
6434
6435	if (pShader)
6436	{
6437	if (pShader->pShaderProgram)
6438	RTMemFree(pShader->pShaderProgram);
6439	memset(pShader, 0, sizeof(*pShader));
6440	pShader->id = SVGA3D_INVALID_ID;
6441	}
6442	else
6443	AssertFailedReturn(VERR_INVALID_PARAMETER);
6444
6445	return VINF_SUCCESS;
6446	}
6447
6448	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6449	{
6450	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6451	AssertReturn(pState, VERR_NO_MEMORY);
6452	int rc;
6453
6454	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6455
6456	if ( !pContext
6457	&& cid < pState->cContexts
6458	&& pState->papContexts[cid]->id == cid)
6459	pContext = pState->papContexts[cid];
6460	else if (!pContext)
6461	{
6462	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6463	Log(("vmsvga3dShaderSet invalid context id!\n"));
6464	return VERR_INVALID_PARAMETER;
6465	}
6466	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6467
6468	if (type == SVGA3D_SHADERTYPE_VS)
6469	{
6470	/* Save for vm state save/restore. */
6471	pContext->state.shidVertex = shid;
6472	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6473
6474	if ( shid < pContext->cVertexShaders
6475	&& pContext->paVertexShader[shid].id == shid)
6476	{
6477	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6478	Assert(type == pShader->type);
6479
6480	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6481	AssertRCReturn(rc, rc);
6482	}
6483	else
6484	if (shid == SVGA_ID_INVALID)
6485	{
6486	/* Unselect shader. */
6487	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6488	AssertRCReturn(rc, rc);
6489	}
6490	else
6491	AssertFailedReturn(VERR_INVALID_PARAMETER);
6492	}
6493	else
6494	{
6495	/* Save for vm state save/restore. */
6496	pContext->state.shidPixel = shid;
6497	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6498
6499	Assert(type == SVGA3D_SHADERTYPE_PS);
6500	if ( shid < pContext->cPixelShaders
6501	&& pContext->paPixelShader[shid].id == shid)
6502	{
6503	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6504	Assert(type == pShader->type);
6505
6506	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6507	AssertRCReturn(rc, rc);
6508	}
6509	else
6510	if (shid == SVGA_ID_INVALID)
6511	{
6512	/* Unselect shader. */
6513	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6514	AssertRCReturn(rc, rc);
6515	}
6516	else
6517	AssertFailedReturn(VERR_INVALID_PARAMETER);
6518	}
6519
6520	return VINF_SUCCESS;
6521	}
6522
6523	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6524	{
6525	PVMSVGA3DCONTEXT pContext;
6526	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6527	AssertReturn(pState, VERR_NO_MEMORY);
6528	int rc;
6529
6530	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6531
6532	if ( cid >= pState->cContexts
6533	\|\| pState->papContexts[cid]->id != cid)
6534	{
6535	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6536	return VERR_INVALID_PARAMETER;
6537	}
6538	pContext = pState->papContexts[cid];
6539	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6540
6541	for (uint32_t i = 0; i < cRegisters; i++)
6542	{
6543	#ifdef LOG_ENABLED
6544	switch (ctype)
6545	{
6546	case SVGA3D_CONST_TYPE_FLOAT:
6547	{
6548	float pValuesF = (float )pValues;
6549	Log(("ConstantF %d: value=%d, %d, %d, %d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0f), (int)(pValuesF[i4 + 1] 100.0f), (int)(pValuesF[i4 + 2] 100.0f), (int)(pValuesF[i4 + 3] 100.0f)));
6550	break;
6551	}
6552
6553	case SVGA3D_CONST_TYPE_INT:
6554	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6555	break;
6556
6557	case SVGA3D_CONST_TYPE_BOOL:
6558	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6559	break;
6560	}
6561	#endif
6562	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6563	}
6564
6565	switch (type)
6566	{
6567	case SVGA3D_SHADERTYPE_VS:
6568	switch (ctype)
6569	{
6570	case SVGA3D_CONST_TYPE_FLOAT:
6571	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6572	break;
6573
6574	case SVGA3D_CONST_TYPE_INT:
6575	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6576	break;
6577
6578	case SVGA3D_CONST_TYPE_BOOL:
6579	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6580	break;
6581
6582	default:
6583	AssertFailedReturn(VERR_INVALID_PARAMETER);
6584	}
6585	AssertRCReturn(rc, rc);
6586	break;
6587
6588	case SVGA3D_SHADERTYPE_PS:
6589	switch (ctype)
6590	{
6591	case SVGA3D_CONST_TYPE_FLOAT:
6592	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6593	break;
6594
6595	case SVGA3D_CONST_TYPE_INT:
6596	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6597	break;
6598
6599	case SVGA3D_CONST_TYPE_BOOL:
6600	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6601	break;
6602
6603	default:
6604	AssertFailedReturn(VERR_INVALID_PARAMETER);
6605	}
6606	AssertRCReturn(rc, rc);
6607	break;
6608
6609	default:
6610	AssertFailedReturn(VERR_INVALID_PARAMETER);
6611	}
6612
6613	return VINF_SUCCESS;
6614	}
6615
6616	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6617	{
6618	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6619	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6620
6621	GLuint idQuery = 0;
6622	pState->ext.glGenQueries(1, &idQuery);
6623	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6624	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6625	pContext->occlusion.idQuery = idQuery;
6626	return VINF_SUCCESS;
6627	}
6628
6629	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6630	{
6631	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6632	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6633
6634	if (pContext->occlusion.idQuery)
6635	{
6636	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6637	}
6638	return VINF_SUCCESS;
6639	}
6640
6641	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6642	{
6643	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6644	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6645
6646	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6647	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6648	return VINF_SUCCESS;
6649	}
6650
6651	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6652	{
6653	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6654	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6655
6656	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6657	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6658	return VINF_SUCCESS;
6659	}
6660
6661	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6662	{
6663	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6664	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6665
6666	GLuint pixels = 0;
6667	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6668	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6669
6670	*pu32Pixels = (uint32_t)pixels;
6671	return VINF_SUCCESS;
6672	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 78218

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