DevVGA-SVGA3d-ogl.cpp@ 83579

Last change on this file since 83579 was 83579, checked in by vboxsync, 5 years ago
Devices/Graphics: added helpers to parse and log the shader code, bugref:9639
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 83579 2020-04-06 00:17:53Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2020 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35	#include <VBox/AssertGuest.h>
36
37	#include <iprt/assert.h>
38	#include <iprt/semaphore.h>
39	#include <iprt/uuid.h>
40	#include <iprt/mem.h>
41
42	#include <VBoxVideo.h> /* required by DevVGA.h */
43
44	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
45	#include "DevVGA.h"
46
47	#include "DevVGA-SVGA.h"
48	#include "DevVGA-SVGA3d.h"
49	#include "DevVGA-SVGA3d-internal.h"
50
51	#ifdef DUMP_SHADER_DISASSEMBLY
52	# include <d3dx9shader.h>
53	#endif
54
55	#include <stdlib.h>
56	#include <math.h>
57	#include <float.h> /* FLT_MIN */
58
59
60	/*********************************************************************************************************************************
61	* Defined Constants And Macros *
62	*********************************************************************************************************************************/
63	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
64	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
65	#endif
66
67	#ifdef VMSVGA3D_DYNAMIC_LOAD
68	# define OGLGETPROCADDRESS glLdrGetProcAddress
69	#else
70	#ifdef RT_OS_WINDOWS
71	# define OGLGETPROCADDRESS MyWinGetProcAddress
72	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
73	{
74	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
75	PROC p = wglGetProcAddress(pszSymbol);
76	if (RT_VALID_PTR(p))
77	return p;
78	return 0;
79	}
80	#elif defined(RT_OS_DARWIN)
81	# include <dlfcn.h>
82	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
83	/** Resolves an OpenGL symbol. */
84	static void MyNSGLGetProcAddress(const char pszSymbol)
85	{
86	/* Another copy in shaderapi.c. */
87	static void *s_pvImage = NULL;
88	if (s_pvImage == NULL)
89	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
90	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
91	}
92
93	#else
94	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
95	#endif
96	#endif
97
98	/* Invert y-coordinate for OpenGL's bottom left origin. */
99	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->paMipmapLevels[0].mipmapSize.height - (y_coordinate))
100	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
101
102	/**
103	* Macro for doing something and then checking for errors during initialization.
104	* Uses AssertLogRelMsg.
105	*/
106	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
107	do \
108	{ \
109	a_Expr; \
110	GLenum iGlError = glGetError(); \
111	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
112	} while (0)
113
114	/**
115	* Macro for doing something and then checking for errors during initialization,
116	* doing the same in the other context when enabled.
117	*
118	* This will try both profiles in dual profile builds. Caller must be in the
119	* default context.
120	*
121	* Uses AssertLogRelMsg to indicate trouble.
122	*/
123	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
124	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
125	do \
126	{ \
127	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
128	a_Expr; \
129	GLenum iGlError = glGetError(); \
130	if (iGlError != GL_NO_ERROR) \
131	{ \
132	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
133	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
134	a_Expr; \
135	GLenum iGlError2 = glGetError(); \
136	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
137	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
138	} \
139	} while (0)
140	#else
141	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
142	#endif
143
144
145	/*********************************************************************************************************************************
146	* Global Variables *
147	*********************************************************************************************************************************/
148	/* Define the default light parameters as specified by MSDN. */
149	/** @todo move out; fetched from Wine */
150	const SVGA3dLightData vmsvga3d_default_light =
151	{
152	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
153	false, /* inWorldSpace */
154	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
156	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
157	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
158	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
159	0.0f, /* range */
160	0.0f, /* falloff */
161	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
162	0.0f, /* theta */
163	0.0f /* phi */
164	};
165
166
167	/*********************************************************************************************************************************
168	* Internal Functions *
169	*********************************************************************************************************************************/
170	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid);
171	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
172
173	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
174	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
175
176
177	/**
178	* Checks if the given OpenGL extension is supported.
179	*
180	* @returns true if supported, false if not.
181	* @param pState The VMSVGA3d state.
182	* @param rsMinGLVersion The OpenGL version that introduced this feature
183	* into the core.
184	* @param pszWantedExtension The name of the OpenGL extension we want padded
185	* with one space at each end.
186	* @remarks Init time only.
187	*/
188	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
189	{
190	RT_NOREF(rsMinGLVersion);
191	/* check padding. */
192	Assert(pszWantedExtension[0] == ' ');
193	Assert(pszWantedExtension[1] != ' ');
194	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
195
196	/* Look it up. */
197	bool fRet = false;
198	if (strstr(pState->pszExtensions, pszWantedExtension))
199	fRet = true;
200
201	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
202	#ifdef RT_OS_DARWIN
203	AssertMsg( rsMinGLVersion == 0.0
204	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
205	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
206	("%s actual:%d min:%d fRet=%d\n",
207	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
208	#else
209	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
210	("%s actual:%d min:%d fRet=%d\n",
211	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
212	#endif
213	return fRet;
214	}
215
216
217	/**
218	* Outputs GL_EXTENSIONS list to the release log.
219	*/
220	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
221	{
222	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
223	bool fBuffered = RTLogRelSetBuffering(true);
224
225	/*
226	* Determin the column widths first.
227	*/
228	size_t acchWidths[4] = { 1, 1, 1, 1 };
229	uint32_t i;
230	const char *psz = pszExtensions;
231	for (i = 0; ; i++)
232	{
233	while (*psz == ' ')
234	psz++;
235	if (!*psz)
236	break;
237
238	const char *pszEnd = strchr(psz, ' ');
239	AssertBreak(pszEnd);
240	size_t cch = pszEnd - psz;
241
242	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
243	if (acchWidths[iColumn] < cch)
244	acchWidths[iColumn] = cch;
245
246	psz = pszEnd;
247	}
248
249	/*
250	* Output it.
251	*/
252	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
253	psz = pszExtensions;
254	for (i = 0; ; i++)
255	{
256	while (*psz == ' ')
257	psz++;
258	if (!*psz)
259	break;
260
261	const char *pszEnd = strchr(psz, ' ');
262	AssertBreak(pszEnd);
263	size_t cch = pszEnd - psz;
264
265	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
266	if (iColumn == 0)
267	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
268	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
269	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
270	else
271	LogRel((" %.*s", cch, psz));
272
273	psz = pszEnd;
274	}
275
276	RTLogRelSetBuffering(fBuffered);
277	LogRel(("\n"));
278	}
279
280	/**
281	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
282	* @a ppszExtensions.
283	*
284	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
285	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
286	* @param fGLProfileVersion The OpenGL profile version.
287	*/
288	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
289	{
290	int rc;
291	*ppszExtensions = NULL;
292
293	/*
294	* Try the old glGetString interface first.
295	*/
296	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
297	if (pszExtensions)
298	{
299	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
300	AssertLogRelRCReturn(rc, rc);
301	}
302	else
303	{
304	/*
305	* The new interface where each extension string is retrieved separately.
306	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
307	* the above GL_EXTENSIONS error lingers on darwin. sucks.
308	*/
309	#ifndef GL_NUM_EXTENSIONS
310	# define GL_NUM_EXTENSIONS 0x821D
311	#endif
312	GLint cExtensions = 1024;
313	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
314	Assert(cExtensions != 1024);
315
316	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
317	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
318
319	rc = RTStrAAppend(ppszExtensions, " ");
320	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
321	{
322	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
323	if (pszExt)
324	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
325	}
326	AssertRCReturn(rc, rc);
327	}
328
329	#if 1
330	/*
331	* Add extensions promoted into the core OpenGL profile.
332	*/
333	static const struct
334	{
335	float fGLVersion;
336	const char *pszzExtensions;
337	} s_aPromotedExtensions[] =
338	{
339	{
340	1.1f,
341	" GL_EXT_vertex_array \0"
342	" GL_EXT_polygon_offset \0"
343	" GL_EXT_blend_logic_op \0"
344	" GL_EXT_texture \0"
345	" GL_EXT_copy_texture \0"
346	" GL_EXT_subtexture \0"
347	" GL_EXT_texture_object \0"
348	" GL_ARB_framebuffer_object \0"
349	" GL_ARB_map_buffer_range \0"
350	" GL_ARB_vertex_array_object \0"
351	"\0"
352	},
353	{
354	1.2f,
355	" EXT_texture3D \0"
356	" EXT_bgra \0"
357	" EXT_packed_pixels \0"
358	" EXT_rescale_normal \0"
359	" EXT_separate_specular_color \0"
360	" SGIS_texture_edge_clamp \0"
361	" SGIS_texture_lod \0"
362	" EXT_draw_range_elements \0"
363	"\0"
364	},
365	{
366	1.3f,
367	" GL_ARB_texture_compression \0"
368	" GL_ARB_texture_cube_map \0"
369	" GL_ARB_multisample \0"
370	" GL_ARB_multitexture \0"
371	" GL_ARB_texture_env_add \0"
372	" GL_ARB_texture_env_combine \0"
373	" GL_ARB_texture_env_dot3 \0"
374	" GL_ARB_texture_border_clamp \0"
375	" GL_ARB_transpose_matrix \0"
376	"\0"
377	},
378	{
379	1.5f,
380	" GL_SGIS_generate_mipmap \0"
381	/" GL_NV_blend_equare \0"/
382	" GL_ARB_depth_texture \0"
383	" GL_ARB_shadow \0"
384	" GL_EXT_fog_coord \0"
385	" GL_EXT_multi_draw_arrays \0"
386	" GL_ARB_point_parameters \0"
387	" GL_EXT_secondary_color \0"
388	" GL_EXT_blend_func_separate \0"
389	" GL_EXT_stencil_wrap \0"
390	" GL_ARB_texture_env_crossbar \0"
391	" GL_EXT_texture_lod_bias \0"
392	" GL_ARB_texture_mirrored_repeat \0"
393	" GL_ARB_window_pos \0"
394	"\0"
395	},
396	{
397	1.6f,
398	" GL_ARB_vertex_buffer_object \0"
399	" GL_ARB_occlusion_query \0"
400	" GL_EXT_shadow_funcs \0"
401	},
402	{
403	2.0f,
404	" GL_ARB_shader_objects \0" /??/
405	" GL_ARB_vertex_shader \0" /??/
406	" GL_ARB_fragment_shader \0" /??/
407	" GL_ARB_shading_language_100 \0" /??/
408	" GL_ARB_draw_buffers \0"
409	" GL_ARB_texture_non_power_of_two \0"
410	" GL_ARB_point_sprite \0"
411	" GL_ATI_separate_stencil \0"
412	" GL_EXT_stencil_two_side \0"
413	"\0"
414	},
415	{
416	2.1f,
417	" GL_ARB_pixel_buffer_object \0"
418	" GL_EXT_texture_sRGB \0"
419	"\0"
420	},
421	{
422	3.0f,
423	" GL_ARB_framebuffer_object \0"
424	" GL_ARB_map_buffer_range \0"
425	" GL_ARB_vertex_array_object \0"
426	"\0"
427	},
428	{
429	3.1f,
430	" GL_ARB_copy_buffer \0"
431	" GL_ARB_uniform_buffer_object \0"
432	"\0"
433	},
434	{
435	3.2f,
436	" GL_ARB_vertex_array_bgra \0"
437	" GL_ARB_draw_elements_base_vertex \0"
438	" GL_ARB_fragment_coord_conventions \0"
439	" GL_ARB_provoking_vertex \0"
440	" GL_ARB_seamless_cube_map \0"
441	" GL_ARB_texture_multisample \0"
442	" GL_ARB_depth_clamp \0"
443	" GL_ARB_sync \0"
444	" GL_ARB_geometry_shader4 \0" /??/
445	"\0"
446	},
447	{
448	3.3f,
449	" GL_ARB_blend_func_extended \0"
450	" GL_ARB_sampler_objects \0"
451	" GL_ARB_explicit_attrib_location \0"
452	" GL_ARB_occlusion_query2 \0"
453	" GL_ARB_shader_bit_encoding \0"
454	" GL_ARB_texture_rgb10_a2ui \0"
455	" GL_ARB_texture_swizzle \0"
456	" GL_ARB_timer_query \0"
457	" GL_ARB_vertex_type_2_10_10_10_rev \0"
458	"\0"
459	},
460	{
461	4.0f,
462	" GL_ARB_texture_query_lod \0"
463	" GL_ARB_draw_indirect \0"
464	" GL_ARB_gpu_shader5 \0"
465	" GL_ARB_gpu_shader_fp64 \0"
466	" GL_ARB_shader_subroutine \0"
467	" GL_ARB_tessellation_shader \0"
468	" GL_ARB_texture_buffer_object_rgb32 \0"
469	" GL_ARB_texture_cube_map_array \0"
470	" GL_ARB_texture_gather \0"
471	" GL_ARB_transform_feedback2 \0"
472	" GL_ARB_transform_feedback3 \0"
473	"\0"
474	},
475	{
476	4.1f,
477	" GL_ARB_ES2_compatibility \0"
478	" GL_ARB_get_program_binary \0"
479	" GL_ARB_separate_shader_objects \0"
480	" GL_ARB_shader_precision \0"
481	" GL_ARB_vertex_attrib_64bit \0"
482	" GL_ARB_viewport_array \0"
483	"\0"
484	}
485	};
486
487	uint32_t cPromoted = 0;
488	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
489	{
490	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
491	while (*pszExt)
492	{
493	# ifdef VBOX_STRICT
494	size_t cchExt = strlen(pszExt);
495	Assert(cchExt > 3);
496	Assert(pszExt[0] == ' ');
497	Assert(pszExt[1] != ' ');
498	Assert(pszExt[cchExt - 2] != ' ');
499	Assert(pszExt[cchExt - 1] == ' ');
500	# endif
501
502	if (strstr(*ppszExtensions, pszExt) == NULL)
503	{
504	if (cPromoted++ == 0)
505	{
506	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
507	AssertRCReturn(rc, rc);
508	}
509
510	rc = RTStrAAppend(ppszExtensions, pszExt);
511	AssertRCReturn(rc, rc);
512	}
513
514	pszExt = strchr(pszExt, '\0') + 1;
515	}
516	}
517	#endif
518
519	return VINF_SUCCESS;
520	}
521
522	/** Check whether this is an Intel GL driver.
523	*
524	* @returns true if this seems to be some Intel graphics.
525	*/
526	static bool vmsvga3dIsVendorIntel(void)
527	{
528	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
529	}
530
531	/**
532	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
533	*/
534	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
535	{
536	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
537	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
538	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
539	#else
540	NOREF(pThis);
541	NOREF(fOtherProfile);
542	#endif
543	}
544
545
546	/**
547	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
548	*/
549	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
550	char *pszBuf, size_t cbBuf, bool fOtherProfile)
551	{
552	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
553	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
554	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
555	while (*pszCur == ' ')
556	pszCur++;
557	if (!*pszCur)
558	return false;
559
560	const char *pszEnd = strchr(pszCur, ' ');
561	AssertReturn(pszEnd, false);
562	size_t cch = pszEnd - pszCur;
563	if (cch < cbBuf)
564	{
565	memcpy(pszBuf, pszCur, cch);
566	pszBuf[cch] = '\0';
567	}
568	else if (cbBuf > 0)
569	{
570	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
571	pszBuf[cbBuf - 1] = '\0';
572	}
573
574	ppvEnumCtx = (void )pszEnd;
575	return true;
576	}
577
578
579	/**
580	* Initializes the VMSVGA3D state during VGA device construction.
581	*
582	* Failure are generally not fatal, 3D support will just be disabled.
583	*
584	* @returns VBox status code.
585	* @param pDevIns The device instance.
586	* @param pThis The shared VGA/VMSVGA state where svga.p3dState will be
587	* modified.
588	* @param pThisCC The VGA/VMSVGA state for ring-3.
589	*/
590	int vmsvga3dInit(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
591	{
592	int rc;
593	RT_NOREF(pDevIns, pThis);
594
595	AssertCompile(GL_TRUE == 1);
596	AssertCompile(GL_FALSE == 0);
597
598	#ifdef VMSVGA3D_DYNAMIC_LOAD
599	rc = glLdrInit(pDevIns);
600	if (RT_FAILURE(rc))
601	{
602	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
603	return rc;
604	}
605	#endif
606
607	/*
608	* Load and resolve imports from the external shared libraries.
609	*/
610	RTERRINFOSTATIC ErrInfo;
611	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
612	if (RT_FAILURE(rc))
613	{
614	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
615	return rc;
616	}
617	#ifdef RT_OS_DARWIN
618	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
619	if (RT_FAILURE(rc))
620	{
621	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
622	return rc;
623	}
624	#endif
625
626	/*
627	* Allocate the state.
628	*/
629	pThisCC->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
630	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
631
632	#ifdef RT_OS_WINDOWS
633	/* Create event semaphore and async IO thread. */
634	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
635	rc = RTSemEventCreate(&pState->WndRequestSem);
636	if (RT_SUCCESS(rc))
637	{
638	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
639	"VMSVGA3DWND");
640	if (RT_SUCCESS(rc))
641	return VINF_SUCCESS;
642
643	/* bail out. */
644	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
645	RTSemEventDestroy(pState->WndRequestSem);
646	}
647	else
648	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
649	RTMemFree(pThisCC->svga.p3dState);
650	pThisCC->svga.p3dState = NULL;
651	return rc;
652	#else
653	return VINF_SUCCESS;
654	#endif
655	}
656
657	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
658	{
659	/* A strict approach to get a proc address as recommended by Khronos:
660	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
661	* - "If the function is an extension, we need to check to see if the extension is supported."
662	*/
663
664	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
665	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
666	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
667	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
668	} while(0)
669
670	/* Get an optional function address. LogRel on failure. */
671	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
672	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
673	if (!pState->ext.ProcName) \
674	{ \
675	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
676	AssertFailed(); \
677	} \
678	} while(0)
679
680	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
681	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
682	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
683	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
684	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
685	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
686	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
687	GLGETPROC_(PFNGLTEXSUBIMAGE3DPROC , glTexSubImage3D, "");
688	GLGETPROC_(PFNGLGETCOMPRESSEDTEXIMAGEPROC , glGetCompressedTexImage, "");
689	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
690	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
691	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
692	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC , glCompressedTexSubImage3D, "");
693	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
694	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
695	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
696	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
697	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
698	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
699	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
700	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
701	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
702	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
703	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
704	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
705	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
706	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
707	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
708	/* glGetProgramivARB determines implementation limits for the program
709	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
710	* It differs from glGetProgramiv, which returns a parameter from a program object.
711	*/
712	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
713	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
714	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
715	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
716	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
717	#endif
718	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
719	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
720	#endif
721	GLGETPROC_(PFNGLDRAWBUFFERSPROC , glDrawBuffers, "");
722	GLGETPROC_(PFNGLCREATESHADERPROC , glCreateShader, "");
723	GLGETPROC_(PFNGLSHADERSOURCEPROC , glShaderSource, "");
724	GLGETPROC_(PFNGLCOMPILESHADERPROC , glCompileShader, "");
725	GLGETPROC_(PFNGLGETSHADERIVPROC , glGetShaderiv, "");
726	GLGETPROC_(PFNGLGETSHADERINFOLOGPROC , glGetShaderInfoLog, "");
727	GLGETPROC_(PFNGLCREATEPROGRAMPROC , glCreateProgram, "");
728	GLGETPROC_(PFNGLATTACHSHADERPROC , glAttachShader, "");
729	GLGETPROC_(PFNGLLINKPROGRAMPROC , glLinkProgram, "");
730	GLGETPROC_(PFNGLGETPROGRAMIVPROC , glGetProgramiv, "");
731	GLGETPROC_(PFNGLGETPROGRAMINFOLOGPROC , glGetProgramInfoLog, "");
732	GLGETPROC_(PFNGLUSEPROGRAMPROC , glUseProgram, "");
733	GLGETPROC_(PFNGLGETUNIFORMLOCATIONPROC , glGetUniformLocation, "");
734	GLGETPROC_(PFNGLUNIFORM1IPROC , glUniform1i, "");
735	GLGETPROC_(PFNGLUNIFORM4FVPROC , glUniform4fv, "");
736	GLGETPROC_(PFNGLDETACHSHADERPROC , glDetachShader, "");
737	GLGETPROC_(PFNGLDELETESHADERPROC , glDeleteShader, "");
738	GLGETPROC_(PFNGLDELETEPROGRAMPROC , glDeleteProgram, "");
739
740	GLGETPROC_(PFNGLVERTEXATTRIB4FVPROC , glVertexAttrib4fv, "");
741	GLGETPROC_(PFNGLVERTEXATTRIB4UBVPROC , glVertexAttrib4ubv, "");
742	GLGETPROC_(PFNGLVERTEXATTRIB4NUBVPROC , glVertexAttrib4Nubv, "");
743	GLGETPROC_(PFNGLVERTEXATTRIB4SVPROC , glVertexAttrib4sv, "");
744	GLGETPROC_(PFNGLVERTEXATTRIB4NSVPROC , glVertexAttrib4Nsv, "");
745	GLGETPROC_(PFNGLVERTEXATTRIB4NUSVPROC , glVertexAttrib4Nusv, "");
746
747	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
748	if ( pState->rsGLVersion >= 3.0f
749	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
750	{
751	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
752	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
753	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
754	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
755	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
756	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
757	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
758	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
759	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
760	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
761	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
762	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
763	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
764	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
765	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
766	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
767	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
768	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
769	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
770	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
771	}
772
773	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
774	if (pState->rsGLVersion >= 3.1f)
775	{
776	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
777	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
778	}
779	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
780	{
781	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
782	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
783	}
784	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
785	{
786	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
787	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
788	}
789
790	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
791	if ( pState->rsGLVersion >= 3.2f
792	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
793	{
794	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
795	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
796	}
797
798	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
799	if ( pState->rsGLVersion >= 3.2f
800	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
801	{
802	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
803	}
804
805	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
806	if (pState->rsGLVersion >= 3.3f)
807	{
808	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
809	}
810	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
811	{
812	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
813	}
814
815	#undef GLGETPROCOPT_
816	#undef GLGETPROC_
817
818	return VINF_SUCCESS;
819	}
820
821
822	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
823	int vmsvga3dPowerOn(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
824	{
825	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
826	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
827	PVMSVGA3DCONTEXT pContext;
828	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
829	PVMSVGA3DCONTEXT pOtherCtx;
830	#endif
831	int rc;
832	RT_NOREF(pDevIns, pThis);
833
834	if (pState->rsGLVersion != 0.0)
835	return VINF_SUCCESS; /* already initialized (load state) */
836
837	/*
838	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
839	*/
840	rc = vmsvga3dContextDefineOgl(pThisCC, 1, VMSVGA3D_DEF_CTX_F_INIT);
841	AssertRCReturn(rc, rc);
842
843	pContext = pState->papContexts[1];
844	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
845
846	#ifdef VMSVGA3D_DYNAMIC_LOAD
847	/* Context is set and it is possible now to resolve extension functions. */
848	rc = glLdrGetExtFunctions(pDevIns);
849	if (RT_FAILURE(rc))
850	{
851	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
852	return rc;
853	}
854	#endif
855
856	LogRel(("VMSVGA3d: OpenGL version: %s\n"
857	"VMSVGA3d: OpenGL Vendor: %s\n"
858	"VMSVGA3d: OpenGL Renderer: %s\n"
859	"VMSVGA3d: OpenGL shader language version: %s\n",
860	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
861	glGetString(GL_SHADING_LANGUAGE_VERSION)));
862
863	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
864	AssertRCReturn(rc, rc);
865	vmsvga3dLogRelExtensions("", pState->pszExtensions);
866
867	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
868
869
870	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
871	/*
872	* Get the extension list for the alternative profile so we can better
873	* figure out the shader model and stuff.
874	*/
875	rc = vmsvga3dContextDefineOgl(pThisCC, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
876	AssertLogRelRCReturn(rc, rc);
877	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
878
879	pOtherCtx = pState->papContexts[2];
880	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
881
882	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
883	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
884	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
885	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
886	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
887	glGetString(GL_SHADING_LANGUAGE_VERSION)));
888
889	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
890	AssertRCReturn(rc, rc);
891	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
892
893	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
894
895	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
896	#else
897	pState->pszOtherExtensions = (char *)"";
898	pState->rsOtherGLVersion = pState->rsGLVersion;
899	#endif
900
901	/*
902	* Resolve GL function pointers and store them in pState->ext.
903	*/
904	rc = vmsvga3dLoadGLFunctions(pState);
905	if (RT_FAILURE(rc))
906	{
907	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
908	return rc;
909	}
910
911	/*
912	* Initialize the capabilities with sensible defaults.
913	*/
914	pState->caps.maxActiveLights = 1;
915	pState->caps.maxTextures = 1;
916	pState->caps.maxClipDistances = 4;
917	pState->caps.maxColorAttachments = 1;
918	pState->caps.maxRectangleTextureSize = 2048;
919	pState->caps.maxTextureAnisotropy = 1;
920	pState->caps.maxVertexShaderInstructions = 1024;
921	pState->caps.maxFragmentShaderInstructions = 1024;
922	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
923	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
924	pState->caps.flPointSize[0] = 1;
925	pState->caps.flPointSize[1] = 1;
926
927	/*
928	* Query capabilities
929	*/
930	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
931	pState->caps.fTextureFilterAnisotropicSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_filter_anisotropic ");
932
933	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
934	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
935	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
936	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
937	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
938	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
939	#else
940	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
941	#endif
942	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
943	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
944	if (pState->caps.fTextureFilterAnisotropicSupported)
945	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
946	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
947
948	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
949	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
950	&pState->caps.maxFragmentShaderTemps));
951	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
952	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
953	&pState->caps.maxFragmentShaderInstructions));
954	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
955	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
956	&pState->caps.maxVertexShaderTemps));
957	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
958	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
959	&pState->caps.maxVertexShaderInstructions));
960
961	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
962	* ARB Assembly Language
963	* These are done through testing the presence of extensions. You should test them in this order:
964	* GL_NV_gpu_program4: SM 4.0 or better.
965	* GL_NV_vertex_program3: SM 3.0 or better.
966	* GL_ARB_fragment_program: SM 2.0 or better.
967	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
968	*
969	*/
970	/** @todo distinguish between vertex and pixel shaders??? */
971	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
972	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
973	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
974	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
975	#else
976	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
977	#endif
978	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
979	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
980	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
981	{
982	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
983	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
984	}
985	else
986	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
987	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
988	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
989	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
990	)
991	{
992	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
993	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
994	}
995	else
996	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
997	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
998	{
999	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1000	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1001	}
1002	else
1003	{
1004	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1005	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1006	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1007	}
1008
1009	/* Now check the shading language version, in case it indicates a higher supported version. */
1010	if (v >= 3.30f)
1011	{
1012	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
1013	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
1014	}
1015	else
1016	if (v >= 1.20f)
1017	{
1018	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1019	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1020	}
1021
1022	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1023	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1024	{
1025	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1026	}
1027
1028	/*
1029	* Tweak capabilities.
1030	*/
1031	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1032	if ( pState->caps.maxVertexShaderTemps < 32
1033	&& vmsvga3dIsVendorIntel())
1034	pState->caps.maxVertexShaderTemps = 32;
1035
1036	#if 0
1037	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1038	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1039	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1040	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1041	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1042	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1043	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1044	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1045	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1046	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1047	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1048	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1049	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1050	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1051	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1052	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1053	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1054	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1055	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1056	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1057	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1058	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1059	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1060	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1061	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1062	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1063	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1064	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1065	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1066	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1067	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1068	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1069	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1070	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1071	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1072	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1073	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1074	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1075	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1076	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1077	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1078	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1079	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1080	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1081	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1082	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1083	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1084	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1085	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1086	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1087	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1088	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1089	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1090	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1091	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1092	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1093	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1094	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1095	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1096	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1097	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1098	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1099	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1100	#endif
1101
1102	LogRel(("VMSVGA3d: Capabilities:\n"));
1103	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1104	pState->caps.maxActiveLights, pState->caps.maxTextures));
1105	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1106	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1107	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1108	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1109	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1110	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1111	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1112	pState->caps.maxFragmentShaderTemps,
1113	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1114	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1115	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d\n",
1116	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion));
1117	LogRel(("VMSVGA3d: fS3TCSupported=%-2d fTextureFilterAnisotropicSupported=%d\n",
1118	pState->caps.fS3TCSupported, pState->caps.fTextureFilterAnisotropicSupported));
1119
1120
1121	/* Initialize the shader library. */
1122	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1123	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1124	rc = ShaderInitLib(&pState->ShaderIf);
1125	AssertRC(rc);
1126
1127	/* Cleanup */
1128	rc = vmsvga3dContextDestroy(pThisCC, 1);
1129	AssertRC(rc);
1130	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1131	rc = vmsvga3dContextDestroy(pThisCC, 2);
1132	AssertRC(rc);
1133	#endif
1134
1135	if ( pState->rsGLVersion < 3.0
1136	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1137	{
1138	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1139	return VERR_NOT_IMPLEMENTED;
1140	}
1141
1142	return VINF_SUCCESS;
1143	}
1144
1145	int vmsvga3dReset(PVGASTATECC pThisCC)
1146	{
1147	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1148	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
1149
1150	/* Destroy all leftover surfaces. */
1151	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1152	{
1153	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1154	vmsvga3dSurfaceDestroy(pThisCC, pState->papSurfaces[i]->id);
1155	}
1156
1157	/* Destroy all leftover contexts. */
1158	for (uint32_t i = 0; i < pState->cContexts; i++)
1159	{
1160	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1161	vmsvga3dContextDestroy(pThisCC, pState->papContexts[i]->id);
1162	}
1163
1164	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1165	vmsvga3dContextDestroyOgl(pThisCC, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1166
1167	return VINF_SUCCESS;
1168	}
1169
1170	int vmsvga3dTerminate(PVGASTATECC pThisCC)
1171	{
1172	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1173	AssertReturn(pState, VERR_WRONG_ORDER);
1174	int rc;
1175
1176	rc = vmsvga3dReset(pThisCC);
1177	AssertRCReturn(rc, rc);
1178
1179	/* Terminate the shader library. */
1180	rc = ShaderDestroyLib();
1181	AssertRC(rc);
1182
1183	#ifdef RT_OS_WINDOWS
1184	/* Terminate the window creation thread. */
1185	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1186	AssertRCReturn(rc, rc);
1187
1188	RTSemEventDestroy(pState->WndRequestSem);
1189	#elif defined(RT_OS_DARWIN)
1190
1191	#elif defined(RT_OS_LINUX)
1192	/* signal to the thread that it is supposed to exit */
1193	pState->bTerminate = true;
1194	/* wait for it to terminate */
1195	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1196	AssertRC(rc);
1197	XCloseDisplay(pState->display);
1198	#endif
1199
1200	RTStrFree(pState->pszExtensions);
1201	pState->pszExtensions = NULL;
1202	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1203	RTStrFree(pState->pszOtherExtensions);
1204	#endif
1205	pState->pszOtherExtensions = NULL;
1206
1207	return VINF_SUCCESS;
1208	}
1209
1210
1211	void vmsvga3dUpdateHostScreenViewport(PVGASTATECC pThisCC, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1212	{
1213	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1214	* redraw it. */
1215
1216	#ifdef RT_OS_DARWIN
1217	RT_NOREF(pOldViewport);
1218	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1219	if ( pState
1220	&& idScreen == 0
1221	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1222	{
1223	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1224	}
1225	#else
1226	RT_NOREF(pThisCC, idScreen, pOldViewport);
1227	#endif
1228	}
1229
1230
1231	/**
1232	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1233	* given surface format capability.
1234	*
1235	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1236	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1237	*
1238	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1239	* of implicit guest expectations:
1240	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1241	*/
1242	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1243	{
1244	uint32_t result = 0;
1245
1246	/** @todo missing:
1247	*
1248	* SVGA3DFORMAT_OP_PIXELSIZE
1249	*/
1250
1251	switch (idx3dCaps)
1252	{
1253	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1254	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1255	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1256	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1257	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1258	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1259	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1260	break;
1261
1262	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1263	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1264	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1265	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1266	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1267	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1268	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1269	break;
1270	}
1271
1272	/** @todo check hardware caps! */
1273	switch (idx3dCaps)
1274	{
1275	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1276	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1277	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1278	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1279	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1280	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1281	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1282	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1283	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1284	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1285	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1286	result \|= SVGA3DFORMAT_OP_TEXTURE
1287	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1288	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1289	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1290	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1291	\| SVGA3DFORMAT_OP_CUBETEXTURE
1292	\| SVGA3DFORMAT_OP_SRGBREAD
1293	\| SVGA3DFORMAT_OP_SRGBWRITE;
1294	break;
1295
1296	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1297	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1298	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1299	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1300	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1301	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1302	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1303	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1304	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1305	break;
1306
1307	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1308	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1309	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1310	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1311	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1312	result \|= SVGA3DFORMAT_OP_TEXTURE
1313	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1314	\| SVGA3DFORMAT_OP_CUBETEXTURE
1315	\| SVGA3DFORMAT_OP_SRGBREAD;
1316	break;
1317
1318	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1319	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1320	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1321	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1322	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1323	break;
1324
1325	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1326	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1327	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1328	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1329	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1330	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1331	result \|= SVGA3DFORMAT_OP_TEXTURE
1332	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1333	\| SVGA3DFORMAT_OP_CUBETEXTURE
1334	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1335	break;
1336
1337	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1338	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1339	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1340	result \|= SVGA3DFORMAT_OP_TEXTURE
1341	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1342	\| SVGA3DFORMAT_OP_CUBETEXTURE
1343	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1344	break;
1345
1346	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1347	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1348	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1349	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1350	\| SVGA3DFORMAT_OP_TEXTURE;
1351	break;
1352
1353	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1354	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1355	break;
1356	}
1357	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1358
1359	return result;
1360	}
1361
1362	#if 0 /* unused */
1363	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1364	{
1365	RT_NOREF(pState3D, idx3dCaps);
1366
1367	/** @todo test this somehow */
1368	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1369
1370	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1371	return result;
1372	}
1373	#endif
1374
1375
1376	int vmsvga3dQueryCaps(PVGASTATECC pThisCC, uint32_t idx3dCaps, uint32_t *pu32Val)
1377	{
1378	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1379	AssertReturn(pState, VERR_NO_MEMORY);
1380	int rc = VINF_SUCCESS;
1381
1382	*pu32Val = 0;
1383
1384	/*
1385	* The capabilities access by current (2015-03-01) linux sources (gallium,
1386	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1387	* aren't access.
1388	*/
1389
1390	switch (idx3dCaps)
1391	{
1392	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1393	case SVGA3D_DEVCAP_3D:
1394	pu32Val = 1; / boolean? */
1395	break;
1396
1397	case SVGA3D_DEVCAP_MAX_LIGHTS:
1398	*pu32Val = pState->caps.maxActiveLights;
1399	break;
1400
1401	case SVGA3D_DEVCAP_MAX_TEXTURES:
1402	*pu32Val = pState->caps.maxTextures;
1403	break;
1404
1405	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1406	*pu32Val = pState->caps.maxClipDistances;
1407	break;
1408
1409	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1410	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1411	*pu32Val = pState->caps.vertexShaderVersion;
1412	break;
1413
1414	case SVGA3D_DEVCAP_VERTEX_SHADER:
1415	/* boolean? */
1416	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1417	break;
1418
1419	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1420	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1421	*pu32Val = pState->caps.fragmentShaderVersion;
1422	break;
1423
1424	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1425	/* boolean? */
1426	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1427	break;
1428
1429	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1430	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1431	/* Must be obsolete by now; surface format caps specify the same thing. */
1432	rc = VERR_INVALID_PARAMETER;
1433	break;
1434
1435	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1436	break;
1437
1438	/*
1439	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1440	* return TRUE. Even on physical hardware that does not support
1441	* these formats natively, the SVGA3D device will provide an emulation
1442	* which should be invisible to the guest OS.
1443	*/
1444	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1445	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1446	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1447	*pu32Val = 1;
1448	break;
1449
1450	case SVGA3D_DEVCAP_QUERY_TYPES:
1451	break;
1452
1453	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1454	break;
1455
1456	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1457	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1458	AssertCompile(sizeof(uint32_t) == sizeof(float));
1459	(float )pu32Val = pState->caps.flPointSize[1];
1460	break;
1461
1462	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1463	/** @todo ?? */
1464	rc = VERR_INVALID_PARAMETER;
1465	break;
1466
1467	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1468	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1469	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1470	*pu32Val = pState->caps.maxRectangleTextureSize;
1471	break;
1472
1473	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1474	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1475	//*pu32Val = pCaps->MaxVolumeExtent;
1476	*pu32Val = 256;
1477	break;
1478
1479	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1480	pu32Val = 32768; / hardcoded in Wine */
1481	break;
1482
1483	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1484	//*pu32Val = pCaps->MaxTextureAspectRatio;
1485	break;
1486
1487	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1488	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1489	*pu32Val = pState->caps.maxTextureAnisotropy;
1490	break;
1491
1492	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1493	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1494	pu32Val = 0xFFFFF; / hardcoded in Wine */
1495	break;
1496
1497	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1498	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1499	*pu32Val = pState->caps.maxVertexShaderInstructions;
1500	break;
1501
1502	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1503	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1504	break;
1505
1506	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1507	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1508	*pu32Val = pState->caps.maxVertexShaderTemps;
1509	break;
1510
1511	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1512	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1513	*pu32Val = pState->caps.maxFragmentShaderTemps;
1514	break;
1515
1516	case SVGA3D_DEVCAP_TEXTURE_OPS:
1517	break;
1518
1519	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1520	break;
1521
1522	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1523	break;
1524
1525	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1526	break;
1527
1528	case SVGA3D_DEVCAP_SUPERSAMPLE:
1529	break;
1530
1531	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1532	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1533	break;
1534
1535	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1536	break;
1537
1538	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1539	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1540	*pu32Val = pState->caps.maxColorAttachments;
1541	break;
1542
1543	/*
1544	* This is the maximum number of SVGA context IDs that the guest
1545	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1546	*/
1547	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1548	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1549	break;
1550
1551	/*
1552	* This is the maximum number of SVGA surface IDs that the guest
1553	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1554	*/
1555	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1556	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1557	break;
1558
1559	#if 0 /* Appeared more recently, not yet implemented. */
1560	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1561	case SVGA3D_DEVCAP_LINE_AA:
1562	break;
1563	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1564	case SVGA3D_DEVCAP_LINE_STIPPLE:
1565	break;
1566	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1567	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1568	break;
1569	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1570	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1571	break;
1572	#endif
1573
1574	/*
1575	* Supported surface formats.
1576	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1577	*/
1578	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1579	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1580	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1581	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1582	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1583	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1584	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1585	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1586	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1587	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1588	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1589	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1590	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1591	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1592	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1593	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1594	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1595	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1596	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1597	break;
1598
1599	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1600	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1601	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1602	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1603	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1604	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1605	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1606	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1607	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1608	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1609	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1610	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1611	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1612	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1613	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1614	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1615	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1616	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1617	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1618	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1619	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1620	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1621	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1622	break;
1623
1624	/* Linux: Not referenced in current sources. */
1625	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1626	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1627	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1628	rc = VERR_INVALID_PARAMETER;
1629	*pu32Val = 0;
1630	break;
1631
1632	default:
1633	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1634	rc = VERR_INVALID_PARAMETER;
1635	break;
1636	}
1637
1638	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1639	return rc;
1640	}
1641
1642	/**
1643	* Convert SVGA format value to its OpenGL equivalent
1644	*
1645	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1646	* help from wined3dformat_from_d3dformat().
1647	*/
1648	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1649	{
1650	#if 0
1651	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1652	#else
1653	#define AssertTestFmt(f) do {} while(0)
1654	#endif
1655	/* Init cbBlockGL for non-emulated formats. */
1656	pSurface->cbBlockGL = pSurface->cbBlock;
1657
1658	switch (format)
1659	{
1660	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1661	pSurface->internalFormatGL = GL_RGB8;
1662	pSurface->formatGL = GL_BGRA;
1663	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1664	break;
1665	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1666	pSurface->internalFormatGL = GL_RGBA8;
1667	pSurface->formatGL = GL_BGRA;
1668	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1669	break;
1670	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1671	pSurface->internalFormatGL = GL_RGB5;
1672	pSurface->formatGL = GL_RGB;
1673	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1674	AssertTestFmt(SVGA3D_R5G6B5);
1675	break;
1676	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1677	pSurface->internalFormatGL = GL_RGB5;
1678	pSurface->formatGL = GL_BGRA;
1679	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1680	AssertTestFmt(SVGA3D_X1R5G5B5);
1681	break;
1682	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1683	pSurface->internalFormatGL = GL_RGB5_A1;
1684	pSurface->formatGL = GL_BGRA;
1685	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1686	AssertTestFmt(SVGA3D_A1R5G5B5);
1687	break;
1688	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1689	pSurface->internalFormatGL = GL_RGBA4;
1690	pSurface->formatGL = GL_BGRA;
1691	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1692	AssertTestFmt(SVGA3D_A4R4G4B4);
1693	break;
1694
1695	case SVGA3D_R8G8B8A8_UNORM:
1696	pSurface->internalFormatGL = GL_RGBA8;
1697	pSurface->formatGL = GL_RGBA;
1698	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1699	break;
1700
1701	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1702	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1703	pSurface->formatGL = GL_DEPTH_COMPONENT;
1704	pSurface->typeGL = GL_UNSIGNED_INT;
1705	break;
1706	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1707	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1708	pSurface->formatGL = GL_DEPTH_COMPONENT;
1709	pSurface->typeGL = GL_UNSIGNED_SHORT;
1710	AssertTestFmt(SVGA3D_Z_D16);
1711	break;
1712	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1713	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1714	pSurface->formatGL = GL_DEPTH_STENCIL;
1715	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1716	break;
1717	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1718	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1719	pSurface->formatGL = GL_DEPTH_STENCIL;
1720	pSurface->typeGL = GL_UNSIGNED_SHORT;
1721	/** @todo Wine sources hints at no hw support for this, so test this one! */
1722	AssertTestFmt(SVGA3D_Z_D15S1);
1723	break;
1724	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1725	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1726	pSurface->formatGL = GL_DEPTH_COMPONENT;
1727	pSurface->typeGL = GL_UNSIGNED_INT;
1728	AssertTestFmt(SVGA3D_Z_D24X8);
1729	break;
1730
1731	/* Advanced D3D9 depth formats. */
1732	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1733	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1734	pSurface->formatGL = GL_DEPTH_COMPONENT;
1735	pSurface->typeGL = GL_HALF_FLOAT;
1736	break;
1737
1738	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1739	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1740	pSurface->formatGL = GL_DEPTH_COMPONENT;
1741	pSurface->typeGL = GL_FLOAT; /* ??? */
1742	break;
1743
1744	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1745	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1746	pSurface->formatGL = GL_DEPTH_STENCIL;
1747	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1748	break;
1749
1750	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1751	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1752	pSurface->formatGL = GL_RGBA; /* not used */
1753	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1754	break;
1755
1756	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1757	/* "DXT2 and DXT3 are the same from an API perspective." */
1758	RT_FALL_THRU();
1759	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1760	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1761	pSurface->formatGL = GL_RGBA; /* not used */
1762	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1763	break;
1764
1765	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1766	/* "DXT4 and DXT5 are the same from an API perspective." */
1767	RT_FALL_THRU();
1768	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1769	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1770	pSurface->formatGL = GL_RGBA; /* not used */
1771	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1772	break;
1773
1774	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1775	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1776	pSurface->formatGL = GL_LUMINANCE;
1777	pSurface->typeGL = GL_UNSIGNED_BYTE;
1778	break;
1779
1780	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1781	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1782	pSurface->formatGL = GL_LUMINANCE;
1783	pSurface->typeGL = GL_UNSIGNED_SHORT;
1784	break;
1785
1786	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1787	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1788	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1789	pSurface->typeGL = GL_UNSIGNED_BYTE;
1790	break;
1791
1792	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1793	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1794	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1795	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1796	break;
1797
1798	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1799	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1800	pSurface->formatGL = GL_ALPHA;
1801	pSurface->typeGL = GL_UNSIGNED_BYTE;
1802	break;
1803
1804	#if 0
1805
1806	/* Bump-map formats */
1807	case SVGA3D_BUMPU8V8:
1808	return D3DFMT_V8U8;
1809	case SVGA3D_BUMPL6V5U5:
1810	return D3DFMT_L6V5U5;
1811	case SVGA3D_BUMPX8L8V8U8:
1812	return D3DFMT_X8L8V8U8;
1813	case SVGA3D_BUMPL8V8U8:
1814	/* No corresponding D3D9 equivalent. */
1815	AssertFailedReturn(D3DFMT_UNKNOWN);
1816	/* signed bump-map formats */
1817	case SVGA3D_V8U8:
1818	return D3DFMT_V8U8;
1819	case SVGA3D_Q8W8V8U8:
1820	return D3DFMT_Q8W8V8U8;
1821	case SVGA3D_CxV8U8:
1822	return D3DFMT_CxV8U8;
1823	/* mixed bump-map formats */
1824	case SVGA3D_X8L8V8U8:
1825	return D3DFMT_X8L8V8U8;
1826	case SVGA3D_A2W10V10U10:
1827	return D3DFMT_A2W10V10U10;
1828	#endif
1829
1830	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1831	pSurface->internalFormatGL = GL_RGBA16F;
1832	pSurface->formatGL = GL_RGBA;
1833	#if 0 /* bird: wine uses half float, sounds correct to me... */
1834	pSurface->typeGL = GL_FLOAT;
1835	#else
1836	pSurface->typeGL = GL_HALF_FLOAT;
1837	AssertTestFmt(SVGA3D_ARGB_S10E5);
1838	#endif
1839	break;
1840
1841	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1842	pSurface->internalFormatGL = GL_RGBA32F;
1843	pSurface->formatGL = GL_RGBA;
1844	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1845	break;
1846
1847	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1848	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1849	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1850	pSurface->formatGL = GL_RGBA;
1851	#else
1852	pSurface->formatGL = GL_BGRA;
1853	#endif
1854	pSurface->typeGL = GL_UNSIGNED_INT;
1855	AssertTestFmt(SVGA3D_A2R10G10B10);
1856	break;
1857
1858
1859	/* Single- and dual-component floating point formats */
1860	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1861	pSurface->internalFormatGL = GL_R16F;
1862	pSurface->formatGL = GL_RED;
1863	#if 0 /* bird: wine uses half float, sounds correct to me... */
1864	pSurface->typeGL = GL_FLOAT;
1865	#else
1866	pSurface->typeGL = GL_HALF_FLOAT;
1867	AssertTestFmt(SVGA3D_R_S10E5);
1868	#endif
1869	break;
1870	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1871	pSurface->internalFormatGL = GL_R32F;
1872	pSurface->formatGL = GL_RED;
1873	pSurface->typeGL = GL_FLOAT;
1874	break;
1875	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1876	pSurface->internalFormatGL = GL_RG16F;
1877	pSurface->formatGL = GL_RG;
1878	#if 0 /* bird: wine uses half float, sounds correct to me... */
1879	pSurface->typeGL = GL_FLOAT;
1880	#else
1881	pSurface->typeGL = GL_HALF_FLOAT;
1882	AssertTestFmt(SVGA3D_RG_S10E5);
1883	#endif
1884	break;
1885	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1886	pSurface->internalFormatGL = GL_RG32F;
1887	pSurface->formatGL = GL_RG;
1888	pSurface->typeGL = GL_FLOAT;
1889	break;
1890
1891	/*
1892	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1893	* the most efficient format to use when creating new surfaces
1894	* expressly for index or vertex data.
1895	*/
1896	case SVGA3D_BUFFER:
1897	pSurface->internalFormatGL = -1;
1898	pSurface->formatGL = -1;
1899	pSurface->typeGL = -1;
1900	break;
1901
1902	#if 0
1903	return D3DFMT_UNKNOWN;
1904
1905	case SVGA3D_V16U16:
1906	return D3DFMT_V16U16;
1907	#endif
1908
1909	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1910	pSurface->internalFormatGL = GL_RG16;
1911	pSurface->formatGL = GL_RG;
1912	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1913	pSurface->typeGL = GL_UNSIGNED_INT;
1914	#else
1915	pSurface->typeGL = GL_UNSIGNED_SHORT;
1916	AssertTestFmt(SVGA3D_G16R16);
1917	#endif
1918	break;
1919
1920	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1921	pSurface->internalFormatGL = GL_RGBA16;
1922	pSurface->formatGL = GL_RGBA;
1923	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1924	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1925	#else
1926	pSurface->typeGL = GL_UNSIGNED_SHORT;
1927	AssertTestFmt(SVGA3D_A16B16G16R16);
1928	#endif
1929	break;
1930
1931	case SVGA3D_R8G8B8A8_SNORM:
1932	pSurface->internalFormatGL = GL_RGB8;
1933	pSurface->formatGL = GL_BGRA;
1934	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1935	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1936	break;
1937	case SVGA3D_R16G16_UNORM:
1938	pSurface->internalFormatGL = GL_RG16;
1939	pSurface->formatGL = GL_RG;
1940	pSurface->typeGL = GL_UNSIGNED_SHORT;
1941	AssertTestFmt(SVGA3D_R16G16_UNORM);
1942	break;
1943
1944	/* Packed Video formats */
1945	case SVGA3D_UYVY:
1946	case SVGA3D_YUY2:
1947	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1948	pSurface->fEmulated = true;
1949	pSurface->internalFormatGL = GL_RGBA8;
1950	pSurface->formatGL = GL_BGRA;
1951	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1952	pSurface->cbBlockGL = 4 * pSurface->cxBlock * pSurface->cyBlock;
1953	break;
1954
1955	#if 0
1956	/* Planar video formats */
1957	case SVGA3D_NV12:
1958	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1959
1960	/* Video format with alpha */
1961	case SVGA3D_AYUV:
1962	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1963
1964	case SVGA3D_BC4_UNORM:
1965	case SVGA3D_BC5_UNORM:
1966	/* Unknown; only in DX10 & 11 */
1967	break;
1968	#endif
1969	default:
1970	AssertMsgFailed(("Unsupported format %d\n", format));
1971	break;
1972	}
1973	#undef AssertTestFmt
1974	}
1975
1976
1977	#if 0
1978	/**
1979	* Convert SVGA multi sample count value to its D3D equivalent
1980	*/
1981	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1982	{
1983	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1984	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1985
1986	if (multisampleCount > 16)
1987	return D3DMULTISAMPLE_NONE;
1988
1989	/** @todo exact same mapping as d3d? */
1990	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1991	}
1992	#endif
1993
1994	/**
1995	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1996	*
1997	* @param pState The VMSVGA3d state.
1998	* @param pSurface The surface being destroyed.
1999	*/
2000	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
2001	{
2002	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2003	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2004
2005	switch (pSurface->enmOGLResType)
2006	{
2007	case VMSVGA3D_OGLRESTYPE_BUFFER:
2008	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
2009	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2010	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2011	break;
2012
2013	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2014	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
2015	glDeleteTextures(1, &pSurface->oglId.texture);
2016	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2017	if (pSurface->fEmulated)
2018	{
2019	if (pSurface->idEmulated)
2020	{
2021	glDeleteTextures(1, &pSurface->idEmulated);
2022	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2023	}
2024	}
2025	else
2026	{
2027	Assert(!pSurface->idEmulated);
2028	}
2029	break;
2030
2031	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2032	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2033	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2034	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2035	break;
2036
2037	default:
2038	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2039	("hint=%#x, type=%d\n",
2040	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2041	break;
2042	}
2043	}
2044
2045
2046	int vmsvga3dSurfaceCopy(PVGASTATECC pThisCC, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src,
2047	uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2048	{
2049	int rc;
2050
2051	LogFunc(("Copy %d boxes from sid=%u face=%u mipmap=%u to sid=%u face=%u mipmap=%u\n",
2052	cCopyBoxes, src.sid, src.face, src.mipmap, dest.sid, dest.face, dest.mipmap));
2053
2054	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
2055	AssertReturn(pState, VERR_INVALID_STATE);
2056
2057	PVMSVGA3DSURFACE pSurfaceSrc;
2058	rc = vmsvga3dSurfaceFromSid(pState, src.sid, &pSurfaceSrc);
2059	AssertRCReturn(rc, rc);
2060
2061	PVMSVGA3DSURFACE pSurfaceDst;
2062	rc = vmsvga3dSurfaceFromSid(pState, dest.sid, &pSurfaceDst);
2063	AssertRCReturn(rc, rc);
2064
2065	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceSrc))
2066	{
2067	/* The source surface is still in memory. */
2068	PVMSVGA3DMIPMAPLEVEL pMipmapLevelSrc;
2069	rc = vmsvga3dMipmapLevel(pSurfaceSrc, src.face, src.mipmap, &pMipmapLevelSrc);
2070	AssertRCReturn(rc, rc);
2071
2072	PVMSVGA3DMIPMAPLEVEL pMipmapLevelDst;
2073	rc = vmsvga3dMipmapLevel(pSurfaceDst, dest.face, dest.mipmap, &pMipmapLevelDst);
2074	AssertRCReturn(rc, rc);
2075
2076	/* The copy operation is performed on the shared context. */
2077	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2078	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2079
2080	/* Use glTexSubImage to upload the data to the destination texture.
2081	* The latter must be an OpenGL texture.
2082	*/
2083	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceDst))
2084	{
2085	LogFunc(("dest sid=%u type=0x%x format=%d -> create texture\n", dest.sid, pSurfaceDst->surfaceFlags, pSurfaceDst->format));
2086	rc = vmsvga3dBackCreateTexture(pState, pContext, pContext->id, pSurfaceDst);
2087	AssertRCReturn(rc, rc);
2088	}
2089
2090	GLenum target;
2091	if (pSurfaceDst->targetGL == GL_TEXTURE_CUBE_MAP)
2092	target = vmsvga3dCubemapFaceFromIndex(dest.face);
2093	else
2094	{
2095	AssertMsg(pSurfaceDst->targetGL == GL_TEXTURE_2D, ("Test %#x\n", pSurfaceDst->targetGL));
2096	target = pSurfaceDst->targetGL;
2097	}
2098
2099	/* Save the unpacking parameters and set what we need here. */
2100	VMSVGAPACKPARAMS SavedParams;
2101	vmsvga3dOglSetUnpackParams(pState, pContext,
2102	pMipmapLevelSrc->mipmapSize.width,
2103	target == GL_TEXTURE_3D ? pMipmapLevelSrc->mipmapSize.height : 0,
2104	&SavedParams);
2105
2106	glBindTexture(pSurfaceDst->targetGL, pSurfaceDst->oglId.texture);
2107	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2108
2109	for (uint32_t i = 0; i < cCopyBoxes; ++i)
2110	{
2111	SVGA3dCopyBox clipBox = pBox[i];
2112	vmsvgaR3ClipCopyBox(&pMipmapLevelSrc->mipmapSize, &pMipmapLevelDst->mipmapSize, &clipBox);
2113	if ( !clipBox.w
2114	\|\| !clipBox.h
2115	\|\| !clipBox.d)
2116	{
2117	LogFunc(("Skipped empty box.\n"));
2118	continue;
2119	}
2120
2121	LogFunc(("copy box %d,%d,%d %dx%d to %d,%d,%d\n",
2122	clipBox.srcx, clipBox.srcy, clipBox.srcz, clipBox.w, clipBox.h, clipBox.x, clipBox.y, clipBox.z));
2123
2124	uint32_t const u32BlockX = clipBox.srcx / pSurfaceSrc->cxBlock;
2125	uint32_t const u32BlockY = clipBox.srcy / pSurfaceSrc->cyBlock;
2126	uint32_t const u32BlockZ = clipBox.srcz;
2127	Assert(u32BlockX * pSurfaceSrc->cxBlock == clipBox.srcx);
2128	Assert(u32BlockY * pSurfaceSrc->cyBlock == clipBox.srcy);
2129
2130	uint8_t const pSrcBits = (uint8_t )pMipmapLevelSrc->pSurfaceData
2131	+ pMipmapLevelSrc->cbSurfacePlane * u32BlockZ
2132	+ pMipmapLevelSrc->cbSurfacePitch * u32BlockY
2133	+ pSurfaceSrc->cbBlock * u32BlockX;
2134
2135	if (target == GL_TEXTURE_3D)
2136	{
2137	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2138	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2139	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2140	{
2141	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2142	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2143	uint32_t const imageSize = cBlocksX * cBlocksY * clipBox.d * pSurfaceSrc->cbBlock;
2144	pState->ext.glCompressedTexSubImage3D(target, dest.mipmap,
2145	clipBox.x, clipBox.y, clipBox.z,
2146	clipBox.w, clipBox.h, clipBox.d,
2147	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2148	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2149	}
2150	else
2151	{
2152	pState->ext.glTexSubImage3D(target, dest.mipmap,
2153	clipBox.x, clipBox.y, clipBox.z,
2154	clipBox.w, clipBox.h, clipBox.d,
2155	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2156	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2157	}
2158	}
2159	else
2160	{
2161	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2162	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2163	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2164	{
2165	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2166	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2167	uint32_t const imageSize = cBlocksX * cBlocksY * pSurfaceSrc->cbBlock;
2168	pState->ext.glCompressedTexSubImage2D(target, dest.mipmap,
2169	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2170	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2171	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2172	}
2173	else
2174	{
2175	glTexSubImage2D(target, dest.mipmap,
2176	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2177	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2178	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2179	}
2180	}
2181	}
2182
2183	glBindTexture(pSurfaceDst->targetGL, 0);
2184	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2185
2186	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2187
2188	return VINF_SUCCESS;
2189	}
2190
2191	PVGASTATE pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVGASTATE);
2192	for (uint32_t i = 0; i < cCopyBoxes; i++)
2193	{
2194	SVGA3dBox destBox, srcBox;
2195
2196	srcBox.x = pBox[i].srcx;
2197	srcBox.y = pBox[i].srcy;
2198	srcBox.z = pBox[i].srcz;
2199	srcBox.w = pBox[i].w;
2200	srcBox.h = pBox[i].h;
2201	srcBox.d = pBox[i].d;
2202
2203	destBox.x = pBox[i].x;
2204	destBox.y = pBox[i].y;
2205	destBox.z = pBox[i].z;
2206	destBox.w = pBox[i].w;
2207	destBox.h = pBox[i].h;
2208	destBox.d = pBox[i].d;
2209
2210	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2211	rc = vmsvga3dSurfaceStretchBlt(pThis, pThisCC, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2212	AssertRCReturn(rc, rc);
2213	}
2214	return VINF_SUCCESS;
2215	}
2216
2217
2218	/**
2219	* Saves texture unpacking parameters and loads the specified ones.
2220	*
2221	* @param pState The VMSVGA3D state structure.
2222	* @param pContext The active context.
2223	* @param cxRow The number of pixels in a row. 0 for the entire width.
2224	* @param cyImage The height of the image in pixels. 0 for the entire height.
2225	* @param pSave Where to save stuff.
2226	*/
2227	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, GLint cxRow, GLint cyImage,
2228	PVMSVGAPACKPARAMS pSave)
2229	{
2230	RT_NOREF(pState);
2231
2232	/*
2233	* Save (ignore errors, setting the defaults we want and avoids restore).
2234	*/
2235	pSave->iAlignment = 1;
2236	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2237	pSave->cxRow = 0;
2238	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2239	pSave->cyImage = 0;
2240	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage), pState, pContext);
2241
2242	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2243	pSave->fSwapBytes = GL_FALSE;
2244	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2245	Assert(pSave->fSwapBytes == GL_FALSE);
2246
2247	pSave->fLsbFirst = GL_FALSE;
2248	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2249	Assert(pSave->fLsbFirst == GL_FALSE);
2250
2251	pSave->cSkipRows = 0;
2252	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2253	Assert(pSave->cSkipRows == 0);
2254
2255	pSave->cSkipPixels = 0;
2256	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2257	Assert(pSave->cSkipPixels == 0);
2258
2259	pSave->cSkipImages = 0;
2260	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2261	Assert(pSave->cSkipImages == 0);
2262
2263	VMSVGA3D_CLEAR_GL_ERRORS();
2264	#endif
2265
2266	/*
2267	* Setup unpack.
2268	*
2269	* Note! We use 1 as alignment here because we currently don't do any
2270	* aligning of line pitches anywhere.
2271	*/
2272	pSave->fChanged = 0;
2273	if (pSave->iAlignment != 1)
2274	{
2275	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2276	pSave->fChanged \|= VMSVGAPACKPARAMS_ALIGNMENT;
2277	}
2278	if (pSave->cxRow != cxRow)
2279	{
2280	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, cxRow), pState, pContext);
2281	pSave->fChanged \|= VMSVGAPACKPARAMS_ROW_LENGTH;
2282	}
2283	if (pSave->cyImage != cyImage)
2284	{
2285	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, cyImage), pState, pContext);
2286	pSave->fChanged \|= VMSVGAPACKPARAMS_IMAGE_HEIGHT;
2287	}
2288	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2289	if (pSave->fSwapBytes != 0)
2290	{
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2292	pSave->fChanged \|= VMSVGAPACKPARAMS_SWAP_BYTES;
2293	}
2294	if (pSave->fLsbFirst != 0)
2295	{
2296	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2297	pSave->fChanged \|= VMSVGAPACKPARAMS_LSB_FIRST;
2298	}
2299	if (pSave->cSkipRows != 0)
2300	{
2301	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2302	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_ROWS;
2303	}
2304	if (pSave->cSkipPixels != 0)
2305	{
2306	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2307	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_PIXELS;
2308	}
2309	if (pSave->cSkipImages != 0)
2310	{
2311	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2312	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_IMAGES;
2313	}
2314	#endif
2315	}
2316
2317
2318	/**
2319	* Restores texture unpacking parameters.
2320	*
2321	* @param pState The VMSVGA3D state structure.
2322	* @param pContext The active context.
2323	* @param pSave Where stuff was saved.
2324	*/
2325	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext,
2326	PCVMSVGAPACKPARAMS pSave)
2327	{
2328	RT_NOREF(pState);
2329
2330	if (pSave->fChanged & VMSVGAPACKPARAMS_ALIGNMENT)
2331	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2332	if (pSave->fChanged & VMSVGAPACKPARAMS_ROW_LENGTH)
2333	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2334	if (pSave->fChanged & VMSVGAPACKPARAMS_IMAGE_HEIGHT)
2335	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2336	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2337	if (pSave->fChanged & VMSVGAPACKPARAMS_SWAP_BYTES)
2338	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2339	if (pSave->fChanged & VMSVGAPACKPARAMS_LSB_FIRST)
2340	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2341	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_ROWS)
2342	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2343	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_PIXELS)
2344	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2345	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_IMAGES)
2346	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2347	#endif
2348	}
2349
2350	/**
2351	* Create D3D/OpenGL texture object for the specified surface.
2352	*
2353	* Surfaces are created when needed.
2354	*
2355	* @param pState The VMSVGA3d state.
2356	* @param pContext The context.
2357	* @param idAssociatedContext Probably the same as pContext->id.
2358	* @param pSurface The surface to create the texture for.
2359	*/
2360	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2361	PVMSVGA3DSURFACE pSurface)
2362	{
2363	RT_NOREF(idAssociatedContext);
2364
2365	LogFunc(("sid=%u\n", pSurface->id));
2366
2367	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2368
2369	/* Fugure out what kind of texture we are creating. */
2370	GLenum binding;
2371	GLenum target;
2372	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2373	{
2374	Assert(pSurface->cFaces == 6);
2375
2376	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2377	target = GL_TEXTURE_CUBE_MAP;
2378	}
2379	else
2380	{
2381	if (pSurface->paMipmapLevels[0].mipmapSize.depth > 1)
2382	{
2383	binding = GL_TEXTURE_BINDING_3D;
2384	target = GL_TEXTURE_3D;
2385	}
2386	else
2387	{
2388	Assert(pSurface->cFaces == 1);
2389
2390	binding = GL_TEXTURE_BINDING_2D;
2391	target = GL_TEXTURE_2D;
2392	}
2393	}
2394
2395	/* All textures are created in the SharedCtx. */
2396	uint32_t idPrevCtx = pState->idActiveContext;
2397	pContext = &pState->SharedCtx;
2398	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2399
2400	glGenTextures(1, &pSurface->oglId.texture);
2401	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2402	if (pSurface->fEmulated)
2403	{
2404	glGenTextures(1, &pSurface->idEmulated);
2405	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2406	}
2407	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2408
2409	GLint activeTexture = 0;
2410	glGetIntegerv(binding, &activeTexture);
2411	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2412
2413	/* Must bind texture to the current context in order to change it. */
2414	glBindTexture(target, pSurface->oglId.texture);
2415	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2416
2417	/* Set the unpacking parameters. */
2418	VMSVGAPACKPARAMS SavedParams;
2419	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2420
2421	/** @todo Set the mip map generation filter settings. */
2422
2423	/* Set the mipmap base and max level parameters. */
2424	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2425	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2426	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2427	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2428
2429	if (pSurface->fDirty)
2430	LogFunc(("sync dirty texture\n"));
2431
2432	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2433	if (target == GL_TEXTURE_3D)
2434	{
2435	for (uint32_t i = 0; i < numMipLevels; ++i)
2436	{
2437	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2438	* exposing random host memory to the guest and helps a with the fedora 21 surface
2439	* corruption issues (launchpad, background, search field, login).
2440	*/
2441	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2442
2443	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2444	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2445
2446	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2447	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2448	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2449	{
2450	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2451	i,
2452	pSurface->internalFormatGL,
2453	pMipLevel->mipmapSize.width,
2454	pMipLevel->mipmapSize.height,
2455	pMipLevel->mipmapSize.depth,
2456	0,
2457	pMipLevel->cbSurface,
2458	pMipLevel->pSurfaceData);
2459	}
2460	else
2461	{
2462	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2463	i,
2464	pSurface->internalFormatGL,
2465	pMipLevel->mipmapSize.width,
2466	pMipLevel->mipmapSize.height,
2467	pMipLevel->mipmapSize.depth,
2468	0, /* border */
2469	pSurface->formatGL,
2470	pSurface->typeGL,
2471	pMipLevel->pSurfaceData);
2472	}
2473	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2474
2475	pMipLevel->fDirty = false;
2476	}
2477	}
2478	else if (target == GL_TEXTURE_CUBE_MAP)
2479	{
2480	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2481	{
2482	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2483
2484	for (uint32_t i = 0; i < numMipLevels; ++i)
2485	{
2486	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[iFace * numMipLevels + i];
2487	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2488	Assert(pMipLevel->mipmapSize.depth == 1);
2489
2490	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2491	iFace, i, pMipLevel->fDirty));
2492
2493	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2494	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2495	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2496	{
2497	pState->ext.glCompressedTexImage2D(Face,
2498	i,
2499	pSurface->internalFormatGL,
2500	pMipLevel->mipmapSize.width,
2501	pMipLevel->mipmapSize.height,
2502	0,
2503	pMipLevel->cbSurface,
2504	pMipLevel->pSurfaceData);
2505	}
2506	else
2507	{
2508	glTexImage2D(Face,
2509	i,
2510	pSurface->internalFormatGL,
2511	pMipLevel->mipmapSize.width,
2512	pMipLevel->mipmapSize.height,
2513	0,
2514	pSurface->formatGL,
2515	pSurface->typeGL,
2516	pMipLevel->pSurfaceData);
2517	}
2518	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2519
2520	pMipLevel->fDirty = false;
2521	}
2522	}
2523	}
2524	else if (target == GL_TEXTURE_2D)
2525	{
2526	for (uint32_t i = 0; i < numMipLevels; ++i)
2527	{
2528	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2529	* exposing random host memory to the guest and helps a with the fedora 21 surface
2530	* corruption issues (launchpad, background, search field, login).
2531	*/
2532	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2533	Assert(pMipLevel->mipmapSize.depth == 1);
2534
2535	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2536	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2537
2538	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2539	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2540	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2541	{
2542	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2543	i,
2544	pSurface->internalFormatGL,
2545	pMipLevel->mipmapSize.width,
2546	pMipLevel->mipmapSize.height,
2547	0,
2548	pMipLevel->cbSurface,
2549	pMipLevel->pSurfaceData);
2550	}
2551	else
2552	{
2553	glTexImage2D(GL_TEXTURE_2D,
2554	i,
2555	pSurface->internalFormatGL,
2556	pMipLevel->mipmapSize.width,
2557	pMipLevel->mipmapSize.height,
2558	0,
2559	pSurface->formatGL,
2560	pSurface->typeGL,
2561	NULL);
2562	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2563
2564	if (pSurface->fEmulated)
2565	{
2566	/* Bind the emulated texture and init it. */
2567	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2568	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2569
2570	glTexImage2D(GL_TEXTURE_2D,
2571	i,
2572	pSurface->internalFormatGL,
2573	pMipLevel->mipmapSize.width,
2574	pMipLevel->mipmapSize.height,
2575	0,
2576	pSurface->formatGL,
2577	pSurface->typeGL,
2578	NULL);
2579	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2580	}
2581
2582	/* Fetch texture data: either to the actual or to the emulated texture.
2583	* The pSurfaceData buffer may be smaller than the entire texture
2584	* for emulated formats, in which case only part of the texture is synched.
2585	*/
2586	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2587	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2588	glTexSubImage2D(GL_TEXTURE_2D,
2589	i,
2590	0,
2591	0,
2592	cBlocksX,
2593	cBlocksY,
2594	pSurface->formatGL,
2595	pSurface->typeGL,
2596	pMipLevel->pSurfaceData);
2597	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2598
2599	if (pSurface->fEmulated)
2600	{
2601	/* Update the actual texture using the format converter. */
2602	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2603
2604	/* Rebind the actual texture. */
2605	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2606	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2607	}
2608	}
2609	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2610
2611	pMipLevel->fDirty = false;
2612	}
2613	}
2614
2615	pSurface->fDirty = false;
2616
2617	/* Restore unpacking parameters. */
2618	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2619
2620	/* Restore the old active texture. */
2621	glBindTexture(target, activeTexture);
2622	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2623
2624	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2625	pSurface->targetGL = target;
2626	pSurface->bindingGL = binding;
2627
2628	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2629	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2630	return VINF_SUCCESS;
2631	}
2632
2633
2634	/**
2635	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2636	*
2637	* @returns VBox status code.
2638	* @param pThis The VGA device instance.
2639	* @param pState The VMSVGA3d state.
2640	* @param pDstSurface The destination host surface.
2641	* @param uDstFace The destination face (valid).
2642	* @param uDstMipmap The destination mipmap level (valid).
2643	* @param pDstBox The destination box.
2644	* @param pSrcSurface The source host surface.
2645	* @param uSrcFace The destination face (valid).
2646	* @param uSrcMipmap The source mimap level (valid).
2647	* @param pSrcBox The source box.
2648	* @param enmMode The strecht blt mode .
2649	* @param pContext The VMSVGA3d context (already current for OGL).
2650	*/
2651	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2652	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2653	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2654	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2655	{
2656	RT_NOREF(pThis);
2657
2658	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2659	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2660
2661	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2662	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2663	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2664	{
2665	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2666	glAttachment = GL_DEPTH_ATTACHMENT;
2667	glMask = GL_DEPTH_BUFFER_BIT;
2668	}
2669
2670	/* Activate the read and draw framebuffer objects. */
2671	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2672	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2673	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2674	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2675
2676	/* Bind the source and destination objects to the right place. */
2677	GLenum textarget;
2678	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2679	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2680	else
2681	{
2682	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2683	textarget = GL_TEXTURE_2D;
2684	}
2685	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2686	pSrcSurface->oglId.texture, uSrcMipmap);
2687	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2688
2689	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2690	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2691	else
2692	{
2693	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2694	textarget = GL_TEXTURE_2D;
2695	}
2696	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2697	pDstSurface->oglId.texture, uDstMipmap);
2698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2699
2700	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2701	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2702	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2703	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2704	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2705
2706	pState->ext.glBlitFramebuffer(pSrcBox->x,
2707	pSrcBox->y,
2708	pSrcBox->x + pSrcBox->w, /* exclusive. */
2709	pSrcBox->y + pSrcBox->h,
2710	pDstBox->x,
2711	pDstBox->y,
2712	pDstBox->x + pDstBox->w, /* exclusive. */
2713	pDstBox->y + pDstBox->h,
2714	glMask,
2715	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2717
2718	/* Reset the frame buffer association */
2719	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2720	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2721
2722	return VINF_SUCCESS;
2723	}
2724
2725	/**
2726	* Save texture packing parameters and loads those appropriate for the given
2727	* surface.
2728	*
2729	* @param pState The VMSVGA3D state structure.
2730	* @param pContext The active context.
2731	* @param pSurface The surface.
2732	* @param pSave Where to save stuff.
2733	*/
2734	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2735	PVMSVGAPACKPARAMS pSave)
2736	{
2737	RT_NOREF(pState);
2738	/*
2739	* Save (ignore errors, setting the defaults we want and avoids restore).
2740	*/
2741	pSave->iAlignment = 1;
2742	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2743	pSave->cxRow = 0;
2744	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2745
2746	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2747	pSave->cyImage = 0;
2748	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2749	Assert(pSave->cyImage == 0);
2750
2751	pSave->fSwapBytes = GL_FALSE;
2752	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2753	Assert(pSave->fSwapBytes == GL_FALSE);
2754
2755	pSave->fLsbFirst = GL_FALSE;
2756	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2757	Assert(pSave->fLsbFirst == GL_FALSE);
2758
2759	pSave->cSkipRows = 0;
2760	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2761	Assert(pSave->cSkipRows == 0);
2762
2763	pSave->cSkipPixels = 0;
2764	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2765	Assert(pSave->cSkipPixels == 0);
2766
2767	pSave->cSkipImages = 0;
2768	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2769	Assert(pSave->cSkipImages == 0);
2770
2771	VMSVGA3D_CLEAR_GL_ERRORS();
2772	#endif
2773
2774	/*
2775	* Setup unpack.
2776	*
2777	* Note! We use 1 as alignment here because we currently don't do any
2778	* aligning of line pitches anywhere.
2779	*/
2780	NOREF(pSurface);
2781	if (pSave->iAlignment != 1)
2782	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2783	if (pSave->cxRow != 0)
2784	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2785	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2786	if (pSave->cyImage != 0)
2787	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2788	if (pSave->fSwapBytes != 0)
2789	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2790	if (pSave->fLsbFirst != 0)
2791	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2792	if (pSave->cSkipRows != 0)
2793	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2794	if (pSave->cSkipPixels != 0)
2795	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2796	if (pSave->cSkipImages != 0)
2797	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2798	#endif
2799	}
2800
2801
2802	/**
2803	* Restores texture packing parameters.
2804	*
2805	* @param pState The VMSVGA3D state structure.
2806	* @param pContext The active context.
2807	* @param pSurface The surface.
2808	* @param pSave Where stuff was saved.
2809	*/
2810	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2811	PCVMSVGAPACKPARAMS pSave)
2812	{
2813	RT_NOREF(pState, pSurface);
2814	if (pSave->iAlignment != 1)
2815	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2816	if (pSave->cxRow != 0)
2817	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2818	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2819	if (pSave->cyImage != 0)
2820	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2821	if (pSave->fSwapBytes != 0)
2822	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2823	if (pSave->fLsbFirst != 0)
2824	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2825	if (pSave->cSkipRows != 0)
2826	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2827	if (pSave->cSkipPixels != 0)
2828	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2829	if (pSave->cSkipImages != 0)
2830	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2831	#endif
2832	}
2833
2834
2835	/**
2836	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2837	*
2838	* @returns Failure status code or @a rc.
2839	* @param pThis The shared VGA/VMSVGA instance data.
2840	* @param pThisCC The VGA/VMSVGA state for ring-3.
2841	* @param pState The VMSVGA3d state.
2842	* @param pSurface The host surface.
2843	* @param pMipLevel Mipmap level. The caller knows it already.
2844	* @param uHostFace The host face (valid).
2845	* @param uHostMipmap The host mipmap level (valid).
2846	* @param GuestPtr The guest pointer.
2847	* @param cbGuestPitch The guest pitch.
2848	* @param transfer The transfer direction.
2849	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2850	* @param pContext The context (for OpenGL).
2851	* @param rc The current rc for all boxes.
2852	* @param iBox The current box number (for Direct 3D).
2853	*/
2854	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVGASTATECC pThisCC, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2855	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2856	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2857	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2858	{
2859	RT_NOREF(iBox);
2860
2861	switch (pSurface->enmOGLResType)
2862	{
2863	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2864	{
2865	uint32_t cbSurfacePitch;
2866	uint8_t *pDoubleBuffer;
2867	uint64_t offHst;
2868
2869	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2870	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2871	uint32_t const u32HostZ = pBox->z;
2872	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2873	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2874
2875	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2876	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2877	uint32_t const u32GuestZ = pBox->srcz / pSurface->cyBlock;
2878	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2879	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2880
2881	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2882	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2883	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2884
2885	GLenum texImageTarget;
2886	if (pSurface->targetGL == GL_TEXTURE_3D)
2887	{
2888	texImageTarget = GL_TEXTURE_3D;
2889	}
2890	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2891	{
2892	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2893	}
2894	else
2895	{
2896	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2897	texImageTarget = GL_TEXTURE_2D;
2898	}
2899
2900	/* The buffer must be large enough to hold entire texture in the OpenGL format. */
2901	pDoubleBuffer = (uint8_t )RTMemAlloc(pSurface->cbBlockGL pMipLevel->cBlocks);
2902	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2903
2904	if (transfer == SVGA3D_READ_HOST_VRAM)
2905	{
2906	/* Read the entire texture to the double buffer. */
2907	GLint activeTexture;
2908
2909	/* Must bind texture to the current context in order to read it. */
2910	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2911	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2912
2913	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2914	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2915
2916	if (pSurface->fEmulated)
2917	{
2918	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2919	}
2920
2921	/* Set row length and alignment of the input data. */
2922	VMSVGAPACKPARAMS SavedParams;
2923	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2924
2925	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2926	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2927	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2928	{
2929	pState->ext.glGetCompressedTexImage(texImageTarget, uHostMipmap, pDoubleBuffer);
2930	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2931	}
2932	else
2933	{
2934	glGetTexImage(texImageTarget, uHostMipmap, pSurface->formatGL, pSurface->typeGL, pDoubleBuffer);
2935	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2936	}
2937
2938	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2939
2940	/* Restore the old active texture. */
2941	glBindTexture(pSurface->targetGL, activeTexture);
2942	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2943
2944	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch + u32HostZ * pMipLevel->cbSurfacePlane;
2945	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2946	}
2947	else
2948	{
2949	/* The buffer will contain only the copied rectangle. */
2950	offHst = 0;
2951	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2952	}
2953
2954	uint64_t offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch + u32GuestZ * cbGuestPitch * pMipLevel->mipmapSize.height;
2955
2956	for (uint32_t iPlane = 0; iPlane < pBox->d; ++iPlane)
2957	{
2958	AssertBreak(offHst < UINT32_MAX);
2959	AssertBreak(offGst < UINT32_MAX);
2960
2961	rc = vmsvgaR3GmrTransfer(pThis,
2962	pThisCC,
2963	transfer,
2964	pDoubleBuffer,
2965	pMipLevel->cbSurface,
2966	(uint32_t)offHst,
2967	cbSurfacePitch,
2968	GuestPtr,
2969	(uint32_t)offGst,
2970	cbGuestPitch,
2971	cBlocksX * pSurface->cbBlock,
2972	cBlocksY);
2973	AssertRC(rc);
2974
2975	offHst += pMipLevel->cbSurfacePlane;
2976	offGst += pMipLevel->mipmapSize.height * cbGuestPitch;
2977	}
2978
2979	/* Update the opengl surface data. */
2980	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2981	{
2982	GLint activeTexture = 0;
2983	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2984	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2985
2986	/* Must bind texture to the current context in order to change it. */
2987	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2988	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2989
2990	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2991
2992	/* Set row length and alignment of the input data. */
2993	/* We do not need to set ROW_LENGTH to w here, because the image in pDoubleBuffer is tightly packed. */
2994	VMSVGAPACKPARAMS SavedParams;
2995	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2996
2997	if (texImageTarget == GL_TEXTURE_3D)
2998	{
2999	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3000	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3001	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3002	{
3003	pState->ext.glCompressedTexSubImage3D(texImageTarget,
3004	uHostMipmap,
3005	pBox->x,
3006	pBox->y,
3007	pBox->z,
3008	pBox->w,
3009	pBox->h,
3010	pBox->d,
3011	pSurface->internalFormatGL,
3012	cbSurfacePitch * cBlocksY * pBox->d,
3013	pDoubleBuffer);
3014	}
3015	else
3016	{
3017	pState->ext.glTexSubImage3D(texImageTarget,
3018	uHostMipmap,
3019	u32HostBlockX,
3020	u32HostBlockY,
3021	pBox->z,
3022	cBlocksX,
3023	cBlocksY,
3024	pBox->d,
3025	pSurface->formatGL,
3026	pSurface->typeGL,
3027	pDoubleBuffer);
3028	}
3029	}
3030	else
3031	{
3032	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3033	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3034	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3035	{
3036	pState->ext.glCompressedTexSubImage2D(texImageTarget,
3037	uHostMipmap,
3038	pBox->x,
3039	pBox->y,
3040	pBox->w,
3041	pBox->h,
3042	pSurface->internalFormatGL,
3043	cbSurfacePitch * cBlocksY,
3044	pDoubleBuffer);
3045	}
3046	else
3047	{
3048	glTexSubImage2D(texImageTarget,
3049	uHostMipmap,
3050	u32HostBlockX,
3051	u32HostBlockY,
3052	cBlocksX,
3053	cBlocksY,
3054	pSurface->formatGL,
3055	pSurface->typeGL,
3056	pDoubleBuffer);
3057	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3058
3059	if (pSurface->fEmulated)
3060	{
3061	/* Convert the texture to the actual texture if necessary */
3062	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
3063	}
3064	}
3065	}
3066	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3067
3068	/* Restore old values. */
3069	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
3070
3071	/* Restore the old active texture. */
3072	glBindTexture(pSurface->targetGL, activeTexture);
3073	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3074	}
3075
3076	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
3077
3078	/* Free the double buffer. */
3079	RTMemFree(pDoubleBuffer);
3080	break;
3081	}
3082
3083	case VMSVGA3D_OGLRESTYPE_BUFFER:
3084	{
3085	/* Buffers are uncompressed. */
3086	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
3087
3088	/* Caller already clipped pBox and buffers are 1-dimensional. */
3089	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
3090
3091	VMSVGA3D_CLEAR_GL_ERRORS();
3092	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3093	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3094	{
3095	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3096	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3097	if (RT_LIKELY(pbData != NULL))
3098	{
3099	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3100	GLint cbStrictBufSize;
3101	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3102	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3103	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3104	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3105	#endif
3106	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
3107	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
3108	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
3109	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
3110
3111	/* The caller already copied the data to the pMipLevel->pSurfaceData buffer, see VMSVGA3DSURFACE_NEEDS_DATA. */
3112	uint32_t const offHst = pBox->x * pSurface->cbBlock;
3113	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
3114
3115	memcpy(pbData + offHst, (uint8_t *)pMipLevel->pSurfaceData + offHst, cbWidth);
3116
3117	Log4(("Buffer updated at [0x%x;0x%x):\n%.Rhxd\n", offHst, offHst + cbWidth, cbWidth, (uint8_t )pbData + offHst));
3118
3119	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3120	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3121	}
3122	else
3123	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3124	}
3125	else
3126	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3127	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3128	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3129	break;
3130	}
3131
3132	default:
3133	AssertFailed();
3134	break;
3135	}
3136
3137	return rc;
3138	}
3139
3140	int vmsvga3dGenerateMipmaps(PVGASTATECC pThisCC, uint32_t sid, SVGA3dTextureFilter filter)
3141	{
3142	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3143	PVMSVGA3DSURFACE pSurface;
3144	int rc = VINF_SUCCESS;
3145	PVMSVGA3DCONTEXT pContext;
3146	uint32_t cid;
3147	GLint activeTexture = 0;
3148
3149	AssertReturn(pState, VERR_NO_MEMORY);
3150
3151	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
3152	AssertRCReturn(rc, rc);
3153
3154	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3155	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3156	pSurface->autogenFilter = filter;
3157
3158	LogFunc(("sid=%u filter=%d\n", sid, filter));
3159
3160	cid = SVGA3D_INVALID_ID;
3161	pContext = &pState->SharedCtx;
3162	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3163
3164	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3165	{
3166	/* Unknown surface type; turn it into a texture. */
3167	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
3168	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
3169	AssertRCReturn(rc, rc);
3170	}
3171	else
3172	{
3173	/** @todo new filter */
3174	AssertFailed();
3175	}
3176
3177	glGetIntegerv(pSurface->bindingGL, &activeTexture);
3178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3179
3180	/* Must bind texture to the current context in order to change it. */
3181	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
3182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3183
3184	/* Generate the mip maps. */
3185	pState->ext.glGenerateMipmap(pSurface->targetGL);
3186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3187
3188	/* Restore the old texture. */
3189	glBindTexture(pSurface->targetGL, activeTexture);
3190	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3191
3192	return VINF_SUCCESS;
3193	}
3194
3195
3196	#ifdef RT_OS_LINUX
3197	/**
3198	* X11 event handling thread.
3199	*
3200	* @returns VINF_SUCCESS (ignored)
3201	* @param hThreadSelf thread handle
3202	* @param pvUser pointer to pState structure
3203	*/
3204	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3205	{
3206	RT_NOREF(hThreadSelf);
3207	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3208	while (!pState->bTerminate)
3209	{
3210	while (XPending(pState->display) > 0)
3211	{
3212	XEvent event;
3213	XNextEvent(pState->display, &event);
3214
3215	switch (event.type)
3216	{
3217	default:
3218	break;
3219	}
3220	}
3221	/* sleep for 16ms to not burn too many cycles */
3222	RTThreadSleep(16);
3223	}
3224	return VINF_SUCCESS;
3225	}
3226	#endif // RT_OS_LINUX
3227
3228
3229	/**
3230	* Create a new 3d context
3231	*
3232	* @returns VBox status code.
3233	* @param pThisCC The VGA/VMSVGA state for ring-3.
3234	* @param cid Context id
3235	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3236	*/
3237	int vmsvga3dContextDefineOgl(PVGASTATECC pThisCC, uint32_t cid, uint32_t fFlags)
3238	{
3239	int rc;
3240	PVMSVGA3DCONTEXT pContext;
3241	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3242
3243	AssertReturn(pState, VERR_NO_MEMORY);
3244	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3245	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3246	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3247	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3248	#endif
3249
3250	Log(("vmsvga3dContextDefine id %x\n", cid));
3251
3252	if (cid == VMSVGA3D_SHARED_CTX_ID)
3253	pContext = &pState->SharedCtx;
3254	else
3255	{
3256	if (cid >= pState->cContexts)
3257	{
3258	/* Grow the array. */
3259	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3260	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3261	AssertReturn(pvNew, VERR_NO_MEMORY);
3262	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3263	while (pState->cContexts < cNew)
3264	{
3265	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3266	AssertReturn(pContext, VERR_NO_MEMORY);
3267	pContext->id = SVGA3D_INVALID_ID;
3268	pState->papContexts[pState->cContexts++] = pContext;
3269	}
3270	}
3271	/* If one already exists with this id, then destroy it now. */
3272	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3273	vmsvga3dContextDestroy(pThisCC, cid);
3274
3275	pContext = pState->papContexts[cid];
3276	}
3277
3278	/*
3279	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3280	*/
3281	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3282	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3283	{
3284	pSharedCtx = &pState->SharedCtx;
3285	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3286	{
3287	rc = vmsvga3dContextDefineOgl(pThisCC, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3288	AssertLogRelRCReturn(rc, rc);
3289
3290	/* Create resources which use the shared context. */
3291	vmsvga3dOnSharedContextDefine(pState);
3292	}
3293	}
3294
3295	/*
3296	* Initialize the context.
3297	*/
3298	memset(pContext, 0, sizeof(*pContext));
3299	pContext->id = cid;
3300	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3301	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3302
3303	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3304	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3305	pContext->idFramebuffer = OPENGL_INVALID_ID;
3306	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3307	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3308
3309	rc = ShaderContextCreate(&pContext->pShaderContext);
3310	AssertRCReturn(rc, rc);
3311
3312	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3313	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3314
3315	#ifdef RT_OS_WINDOWS
3316	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3317	* to present the rendered image. Rendered images from the guest will be copied to
3318	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3319	* system memory in the guest VRAM.
3320	*/
3321	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3322	AssertRCReturn(rc, rc);
3323
3324	pContext->hdc = GetDC(pContext->hwnd);
3325	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3326
3327	PIXELFORMATDESCRIPTOR pfd = {
3328	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3329	1, /* version number */
3330	PFD_DRAW_TO_WINDOW \| /* support window */
3331	PFD_SUPPORT_OPENGL, /* support OpenGL */
3332	PFD_TYPE_RGBA, /* RGBA type */
3333	24, /* 24-bit color depth */
3334	0, 0, 0, 0, 0, 0, /* color bits ignored */
3335	8, /* alpha buffer */
3336	0, /* shift bit ignored */
3337	0, /* no accumulation buffer */
3338	0, 0, 0, 0, /* accum bits ignored */
3339	16, /* set depth buffer */
3340	16, /* set stencil buffer */
3341	0, /* no auxiliary buffer */
3342	PFD_MAIN_PLANE, /* main layer */
3343	0, /* reserved */
3344	0, 0, 0 /* layer masks ignored */
3345	};
3346	int pixelFormat;
3347	BOOL ret;
3348
3349	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3350	/** @todo is this really necessary?? */
3351	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3352	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3353
3354	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3355	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3356
3357	pContext->hglrc = wglCreateContext(pContext->hdc);
3358	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3359
3360	if (pSharedCtx)
3361	{
3362	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3363	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3364	}
3365
3366	#elif defined(RT_OS_DARWIN)
3367	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3368
3369	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3370	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3371	NULL,
3372	4, 4,
3373	pShareContext, pContext->fOtherProfile);
3374
3375	#else
3376	if (pState->display == NULL)
3377	{
3378	/* get an X display and make sure we have glX 1.3 */
3379	pState->display = XOpenDisplay(0);
3380	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3381	int glxMajor, glxMinor;
3382	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3383	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3384	/* start our X event handling thread */
3385	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3386	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3387	}
3388
3389	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3390	/* Create a small 4x4 window required for GL context. */
3391	int attrib[] =
3392	{
3393	GLX_RGBA,
3394	GLX_RED_SIZE, 1,
3395	GLX_GREEN_SIZE, 1,
3396	GLX_BLUE_SIZE, 1,
3397	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3398	GLX_DOUBLEBUFFER,
3399	None
3400	};
3401	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3402	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3403	XSetWindowAttributes swa;
3404	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3405	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3406	swa.border_pixel = 0;
3407	swa.background_pixel = 0;
3408	swa.event_mask = StructureNotifyMask;
3409	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3410	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3411	0, 0, 4, 4,
3412	0, vi->depth, InputOutput,
3413	vi->visual, flags, &swa);
3414	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3415
3416	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3417
3418	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3419	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3420	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3421	#endif
3422
3423	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3424
3425	/* NULL during the first PowerOn call. */
3426	if (pState->ext.glGenFramebuffers)
3427	{
3428	/* Create a framebuffer object for this context. */
3429	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3431
3432	/* Bind the object to the framebuffer target. */
3433	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3435
3436	/* Create read and draw framebuffer objects for this context. */
3437	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3439
3440	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3442
3443	}
3444	#if 0
3445	/** @todo move to shader lib!!! */
3446	/* Clear the screen */
3447	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3448
3449	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3450	glClearIndex(0);
3451	glClearDepth(1);
3452	glClearStencil(0xffff);
3453	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3454	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3455	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3456	if (pState->ext.glProvokingVertex)
3457	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3458	/** @todo move to shader lib!!! */
3459	#endif
3460	return VINF_SUCCESS;
3461	}
3462
3463
3464	/**
3465	* Create a new 3d context
3466	*
3467	* @returns VBox status code.
3468	* @param pThisCC The VGA/VMSVGA state for ring-3.
3469	* @param cid Context id
3470	*/
3471	int vmsvga3dContextDefine(PVGASTATECC pThisCC, uint32_t cid)
3472	{
3473	return vmsvga3dContextDefineOgl(pThisCC, cid, 0/fFlags/);
3474	}
3475
3476	/**
3477	* Destroys a 3d context.
3478	*
3479	* @returns VBox status code.
3480	* @param pThisCC The VGA/VMSVGA state for ring-3.
3481	* @param pContext The context to destroy.
3482	* @param cid Context id
3483	*/
3484	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3485	{
3486	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3487	AssertReturn(pState, VERR_NO_MEMORY);
3488	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3489	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3490	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3491
3492	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3493
3494	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
3495	{
3496	/* Delete resources which use the shared context. */
3497	vmsvga3dOnSharedContextDestroy(pState);
3498	}
3499
3500	/* Destroy all leftover pixel shaders. */
3501	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3502	{
3503	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3504	vmsvga3dShaderDestroy(pThisCC, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3505	}
3506	if (pContext->paPixelShader)
3507	RTMemFree(pContext->paPixelShader);
3508
3509	/* Destroy all leftover vertex shaders. */
3510	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3511	{
3512	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3513	vmsvga3dShaderDestroy(pThisCC, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3514	}
3515	if (pContext->paVertexShader)
3516	RTMemFree(pContext->paVertexShader);
3517
3518	if (pContext->state.paVertexShaderConst)
3519	RTMemFree(pContext->state.paVertexShaderConst);
3520	if (pContext->state.paPixelShaderConst)
3521	RTMemFree(pContext->state.paPixelShaderConst);
3522
3523	if (pContext->pShaderContext)
3524	{
3525	int rc = ShaderContextDestroy(pContext->pShaderContext);
3526	AssertRC(rc);
3527	}
3528
3529	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3530	{
3531	/* Unbind the object from the framebuffer target. */
3532	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3533	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3534	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3535	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3536
3537	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3538	{
3539	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3541	}
3542	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3543	{
3544	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3545	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3546	}
3547	}
3548
3549	vmsvga3dOcclusionQueryDelete(pState, pContext);
3550
3551	#ifdef RT_OS_WINDOWS
3552	wglMakeCurrent(pContext->hdc, NULL);
3553	wglDeleteContext(pContext->hglrc);
3554	ReleaseDC(pContext->hwnd, pContext->hdc);
3555
3556	/* Destroy the window we've created. */
3557	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3558	AssertRC(rc);
3559	#elif defined(RT_OS_DARWIN)
3560	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3561	#elif defined(RT_OS_LINUX)
3562	glXMakeCurrent(pState->display, None, NULL);
3563	glXDestroyContext(pState->display, pContext->glxContext);
3564	XDestroyWindow(pState->display, pContext->window);
3565	#endif
3566
3567	memset(pContext, 0, sizeof(*pContext));
3568	pContext->id = SVGA3D_INVALID_ID;
3569
3570	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3571	return VINF_SUCCESS;
3572	}
3573
3574	/**
3575	* Destroy an existing 3d context
3576	*
3577	* @returns VBox status code.
3578	* @param pThisCC The VGA/VMSVGA state for ring-3.
3579	* @param cid Context id
3580	*/
3581	int vmsvga3dContextDestroy(PVGASTATECC pThisCC, uint32_t cid)
3582	{
3583	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3584	AssertReturn(pState, VERR_WRONG_ORDER);
3585
3586	/*
3587	* Resolve the context and hand it to the common worker function.
3588	*/
3589	if ( cid < pState->cContexts
3590	&& pState->papContexts[cid]->id == cid)
3591	return vmsvga3dContextDestroyOgl(pThisCC, pState->papContexts[cid], cid);
3592
3593	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3594	return VINF_SUCCESS;
3595	}
3596
3597	/**
3598	* Worker for vmsvga3dChangeMode that resizes a context.
3599	*
3600	* @param pState The VMSVGA3d state.
3601	* @param pContext The context.
3602	*/
3603	static void vmsvga3dChangeModeOneContext(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3604	{
3605	RT_NOREF(pState, pContext);
3606	/* Do nothing. The window is not used for presenting. */
3607	}
3608
3609	/* Handle resize */
3610	int vmsvga3dChangeMode(PVGASTATECC pThisCC)
3611	{
3612	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3613	AssertReturn(pState, VERR_NO_MEMORY);
3614
3615	/* Resize the shared context too. */
3616	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3617	vmsvga3dChangeModeOneContext(pState, &pState->SharedCtx);
3618
3619	/* Resize all active contexts. */
3620	for (uint32_t i = 0; i < pState->cContexts; i++)
3621	{
3622	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3623	if (pContext->id != SVGA3D_INVALID_ID)
3624	vmsvga3dChangeModeOneContext(pState, pContext);
3625	}
3626
3627	return VINF_SUCCESS;
3628	}
3629
3630
3631	int vmsvga3dSetTransform(PVGASTATECC pThisCC, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3632	{
3633	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3634	AssertReturn(pState, VERR_NO_MEMORY);
3635	bool fModelViewChanged = false;
3636
3637	Log(("vmsvga3dSetTransform cid=%u %s\n", cid, vmsvgaTransformToString(type)));
3638
3639	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
3640
3641	PVMSVGA3DCONTEXT pContext;
3642	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3643	AssertRCReturn(rc, rc);
3644
3645	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3646
3647	/* Save this matrix for vm state save/restore. */
3648	pContext->state.aTransformState[type].fValid = true;
3649	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3650	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3651
3652	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)));
3653	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)));
3654	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)));
3655	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)));
3656
3657	switch (type)
3658	{
3659	case SVGA3D_TRANSFORM_VIEW:
3660	/* View * World = Model View */
3661	glMatrixMode(GL_MODELVIEW);
3662	glLoadMatrixf(matrix);
3663	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3664	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3666	fModelViewChanged = true;
3667	break;
3668
3669	case SVGA3D_TRANSFORM_PROJECTION:
3670	{
3671	rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3672	AssertRCReturn(rc, rc);
3673	break;
3674	}
3675
3676	case SVGA3D_TRANSFORM_TEXTURE0:
3677	glMatrixMode(GL_TEXTURE);
3678	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3679	glLoadMatrixf(matrix);
3680	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3681	break;
3682
3683	case SVGA3D_TRANSFORM_TEXTURE1:
3684	case SVGA3D_TRANSFORM_TEXTURE2:
3685	case SVGA3D_TRANSFORM_TEXTURE3:
3686	case SVGA3D_TRANSFORM_TEXTURE4:
3687	case SVGA3D_TRANSFORM_TEXTURE5:
3688	case SVGA3D_TRANSFORM_TEXTURE6:
3689	case SVGA3D_TRANSFORM_TEXTURE7:
3690	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3691	return VERR_INVALID_PARAMETER;
3692
3693	case SVGA3D_TRANSFORM_WORLD:
3694	/* View * World = Model View */
3695	glMatrixMode(GL_MODELVIEW);
3696	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3697	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3698	else
3699	glLoadIdentity();
3700	glMultMatrixf(matrix);
3701	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3702	fModelViewChanged = true;
3703	break;
3704
3705	case SVGA3D_TRANSFORM_WORLD1:
3706	case SVGA3D_TRANSFORM_WORLD2:
3707	case SVGA3D_TRANSFORM_WORLD3:
3708	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3709	return VERR_INVALID_PARAMETER;
3710
3711	default:
3712	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3713	return VERR_INVALID_PARAMETER;
3714	}
3715
3716	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3717	if (fModelViewChanged)
3718	{
3719	/* Reprogram the clip planes. */
3720	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3721	{
3722	if (pContext->state.aClipPlane[j].fValid == true)
3723	vmsvga3dSetClipPlane(pThisCC, cid, j, pContext->state.aClipPlane[j].plane);
3724	}
3725
3726	/* Reprogram the light data. */
3727	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3728	{
3729	if (pContext->state.aLightData[j].fValidData == true)
3730	vmsvga3dSetLightData(pThisCC, cid, j, &pContext->state.aLightData[j].data);
3731	}
3732	}
3733
3734	return VINF_SUCCESS;
3735	}
3736
3737	int vmsvga3dSetZRange(PVGASTATECC pThisCC, uint32_t cid, SVGA3dZRange zRange)
3738	{
3739	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3740	AssertReturn(pState, VERR_NO_MEMORY);
3741
3742	Log(("vmsvga3dSetZRange cid=%u min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3743
3744	PVMSVGA3DCONTEXT pContext;
3745	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3746	AssertRCReturn(rc, rc);
3747
3748	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3749
3750	pContext->state.zRange = zRange;
3751	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3752
3753	if (zRange.min < -1.0)
3754	zRange.min = -1.0;
3755	if (zRange.max > 1.0)
3756	zRange.max = 1.0;
3757
3758	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3759	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3760	return VINF_SUCCESS;
3761	}
3762
3763	/**
3764	* Convert SVGA blend op value to its OpenGL equivalent
3765	*/
3766	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3767	{
3768	switch (blendOp)
3769	{
3770	case SVGA3D_BLENDOP_ZERO:
3771	return GL_ZERO;
3772	case SVGA3D_BLENDOP_ONE:
3773	return GL_ONE;
3774	case SVGA3D_BLENDOP_SRCCOLOR:
3775	return GL_SRC_COLOR;
3776	case SVGA3D_BLENDOP_INVSRCCOLOR:
3777	return GL_ONE_MINUS_SRC_COLOR;
3778	case SVGA3D_BLENDOP_SRCALPHA:
3779	return GL_SRC_ALPHA;
3780	case SVGA3D_BLENDOP_INVSRCALPHA:
3781	return GL_ONE_MINUS_SRC_ALPHA;
3782	case SVGA3D_BLENDOP_DESTALPHA:
3783	return GL_DST_ALPHA;
3784	case SVGA3D_BLENDOP_INVDESTALPHA:
3785	return GL_ONE_MINUS_DST_ALPHA;
3786	case SVGA3D_BLENDOP_DESTCOLOR:
3787	return GL_DST_COLOR;
3788	case SVGA3D_BLENDOP_INVDESTCOLOR:
3789	return GL_ONE_MINUS_DST_COLOR;
3790	case SVGA3D_BLENDOP_SRCALPHASAT:
3791	return GL_SRC_ALPHA_SATURATE;
3792	case SVGA3D_BLENDOP_BLENDFACTOR:
3793	return GL_CONSTANT_COLOR;
3794	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3795	return GL_ONE_MINUS_CONSTANT_COLOR;
3796	default:
3797	AssertFailed();
3798	return GL_ONE;
3799	}
3800	}
3801
3802	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3803	{
3804	switch (blendEq)
3805	{
3806	case SVGA3D_BLENDEQ_ADD:
3807	return GL_FUNC_ADD;
3808	case SVGA3D_BLENDEQ_SUBTRACT:
3809	return GL_FUNC_SUBTRACT;
3810	case SVGA3D_BLENDEQ_REVSUBTRACT:
3811	return GL_FUNC_REVERSE_SUBTRACT;
3812	case SVGA3D_BLENDEQ_MINIMUM:
3813	return GL_MIN;
3814	case SVGA3D_BLENDEQ_MAXIMUM:
3815	return GL_MAX;
3816	default:
3817	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3818	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3819	return GL_FUNC_ADD;
3820	}
3821	}
3822
3823	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3824	{
3825	switch (cmpFunc)
3826	{
3827	case SVGA3D_CMP_NEVER:
3828	return GL_NEVER;
3829	case SVGA3D_CMP_LESS:
3830	return GL_LESS;
3831	case SVGA3D_CMP_EQUAL:
3832	return GL_EQUAL;
3833	case SVGA3D_CMP_LESSEQUAL:
3834	return GL_LEQUAL;
3835	case SVGA3D_CMP_GREATER:
3836	return GL_GREATER;
3837	case SVGA3D_CMP_NOTEQUAL:
3838	return GL_NOTEQUAL;
3839	case SVGA3D_CMP_GREATEREQUAL:
3840	return GL_GEQUAL;
3841	case SVGA3D_CMP_ALWAYS:
3842	return GL_ALWAYS;
3843	default:
3844	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3845	return GL_LESS;
3846	}
3847	}
3848
3849	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3850	{
3851	switch (stencilOp)
3852	{
3853	case SVGA3D_STENCILOP_KEEP:
3854	return GL_KEEP;
3855	case SVGA3D_STENCILOP_ZERO:
3856	return GL_ZERO;
3857	case SVGA3D_STENCILOP_REPLACE:
3858	return GL_REPLACE;
3859	case SVGA3D_STENCILOP_INCRSAT:
3860	return GL_INCR_WRAP;
3861	case SVGA3D_STENCILOP_DECRSAT:
3862	return GL_DECR_WRAP;
3863	case SVGA3D_STENCILOP_INVERT:
3864	return GL_INVERT;
3865	case SVGA3D_STENCILOP_INCR:
3866	return GL_INCR;
3867	case SVGA3D_STENCILOP_DECR:
3868	return GL_DECR;
3869	default:
3870	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3871	return GL_KEEP;
3872	}
3873	}
3874
3875	int vmsvga3dSetRenderState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3876	{
3877	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3878	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3879	AssertReturn(pState, VERR_NO_MEMORY);
3880
3881	Log(("vmsvga3dSetRenderState cid=%u cRenderStates=%d\n", cid, cRenderStates));
3882
3883	PVMSVGA3DCONTEXT pContext;
3884	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3885	AssertRCReturn(rc, rc);
3886
3887	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3888
3889	for (unsigned i = 0; i < cRenderStates; i++)
3890	{
3891	GLenum enableCap = ~(GLenum)0;
3892	Log(("vmsvga3dSetRenderState: cid=%u state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3893	/* Save the render state for vm state saving. */
3894	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
3895	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3896
3897	switch (pRenderState[i].state)
3898	{
3899	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3900	enableCap = GL_DEPTH_TEST;
3901	val = pRenderState[i].uintValue;
3902	break;
3903
3904	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3905	glDepthMask(!!pRenderState[i].uintValue);
3906	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3907	break;
3908
3909	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3910	enableCap = GL_ALPHA_TEST;
3911	val = pRenderState[i].uintValue;
3912	break;
3913
3914	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3915	enableCap = GL_DITHER;
3916	val = pRenderState[i].uintValue;
3917	break;
3918
3919	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3920	enableCap = GL_FOG;
3921	val = pRenderState[i].uintValue;
3922	break;
3923
3924	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3925	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3926	break;
3927
3928	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3929	enableCap = GL_LIGHTING;
3930	val = pRenderState[i].uintValue;
3931	break;
3932
3933	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3934	/* not applicable */
3935	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3936	break;
3937
3938	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3939	enableCap = GL_POINT_SPRITE_ARB;
3940	val = pRenderState[i].uintValue;
3941	break;
3942
3943	case SVGA3D_RS_POINTSIZE: /* float */
3944	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3945	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3946	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3947	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3948	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3949
3950	glPointSize(pRenderState[i].floatValue);
3951	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3952	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3953	break;
3954
3955	case SVGA3D_RS_POINTSIZEMIN: /* float */
3956	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3957	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3958	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3959	break;
3960
3961	case SVGA3D_RS_POINTSIZEMAX: /* float */
3962	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3963	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3964	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3965	break;
3966
3967	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3968	case SVGA3D_RS_POINTSCALE_A: /* float */
3969	case SVGA3D_RS_POINTSCALE_B: /* float */
3970	case SVGA3D_RS_POINTSCALE_C: /* float */
3971	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3972	break;
3973
3974	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3975	{
3976	GLfloat color[4]; /* red, green, blue, alpha */
3977
3978	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3979
3980	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3981	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3982	break;
3983	}
3984
3985	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3986	{
3987	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3988	for (uint32_t j = 0; j <= 5; j++)
3989	{
3990	if (pRenderState[i].uintValue & RT_BIT(j))
3991	glEnable(GL_CLIP_PLANE0 + j);
3992	else
3993	glDisable(GL_CLIP_PLANE0 + j);
3994	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3995	}
3996	break;
3997	}
3998
3999	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4000	{
4001	GLfloat color[4]; /* red, green, blue, alpha */
4002
4003	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4004
4005	glFogfv(GL_FOG_COLOR, color);
4006	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4007	break;
4008	}
4009
4010	case SVGA3D_RS_FOGSTART: /* float */
4011	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4012	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4013	break;
4014
4015	case SVGA3D_RS_FOGEND: /* float */
4016	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4017	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4018	break;
4019
4020	case SVGA3D_RS_FOGDENSITY: /* float */
4021	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4022	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4023	break;
4024
4025	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4026	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4028	break;
4029
4030	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4031	{
4032	SVGA3dFogMode mode;
4033	mode.uintValue = pRenderState[i].uintValue;
4034
4035	enableCap = GL_FOG_MODE;
4036	switch (mode.s.function)
4037	{
4038	case SVGA3D_FOGFUNC_EXP:
4039	val = GL_EXP;
4040	break;
4041	case SVGA3D_FOGFUNC_EXP2:
4042	val = GL_EXP2;
4043	break;
4044	case SVGA3D_FOGFUNC_LINEAR:
4045	val = GL_LINEAR;
4046	break;
4047	default:
4048	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4049	break;
4050	}
4051
4052	/** @todo how to switch between vertex and pixel fog modes??? */
4053	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4054	#if 0
4055	/* The fog type determines the render state. */
4056	switch (mode.s.type)
4057	{
4058	case SVGA3D_FOGTYPE_VERTEX:
4059	renderState = D3DRS_FOGVERTEXMODE;
4060	break;
4061	case SVGA3D_FOGTYPE_PIXEL:
4062	renderState = D3DRS_FOGTABLEMODE;
4063	break;
4064	default:
4065	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4066	break;
4067	}
4068	#endif
4069
4070	/* Set the fog base to depth or range. */
4071	switch (mode.s.base)
4072	{
4073	case SVGA3D_FOGBASE_DEPTHBASED:
4074	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4076	break;
4077	case SVGA3D_FOGBASE_RANGEBASED:
4078	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4079	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4080	break;
4081	default:
4082	/* ignore */
4083	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4084	break;
4085	}
4086	break;
4087	}
4088
4089	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4090	{
4091	SVGA3dFillMode mode;
4092
4093	mode.uintValue = pRenderState[i].uintValue;
4094
4095	switch (mode.s.mode)
4096	{
4097	case SVGA3D_FILLMODE_POINT:
4098	val = GL_POINT;
4099	break;
4100	case SVGA3D_FILLMODE_LINE:
4101	val = GL_LINE;
4102	break;
4103	case SVGA3D_FILLMODE_FILL:
4104	val = GL_FILL;
4105	break;
4106	default:
4107	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4108	break;
4109	}
4110	/* @note only front and back faces */
4111	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4112	glPolygonMode(GL_FRONT_AND_BACK, val);
4113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4114	break;
4115	}
4116
4117	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4118	switch (pRenderState[i].uintValue)
4119	{
4120	case SVGA3D_SHADEMODE_FLAT:
4121	val = GL_FLAT;
4122	break;
4123
4124	case SVGA3D_SHADEMODE_SMOOTH:
4125	val = GL_SMOOTH;
4126	break;
4127
4128	default:
4129	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4130	break;
4131	}
4132
4133	glShadeModel(val);
4134	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4135	break;
4136
4137	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4138	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4139	/** @todo */
4140	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4141	/*
4142	renderState = D3DRS_LINEPATTERN;
4143	val = pRenderState[i].uintValue;
4144	*/
4145	break;
4146
4147	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4148	enableCap = GL_LINE_SMOOTH;
4149	val = pRenderState[i].uintValue;
4150	break;
4151
4152	case SVGA3D_RS_LINEWIDTH: /* float */
4153	glLineWidth(pRenderState[i].floatValue);
4154	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4155	break;
4156
4157	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4158	{
4159	/* Refresh the blending state based on the new enable setting.
4160	* This will take existing states and set them using either glBlend* or glBlend*Separate.
4161	*/
4162	static SVGA3dRenderStateName const saRefreshState[] =
4163	{
4164	SVGA3D_RS_SRCBLEND,
4165	SVGA3D_RS_BLENDEQUATION
4166	};
4167	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4168	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4169	{
4170	renderstate[j].state = saRefreshState[j];
4171	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4172	}
4173
4174	rc = vmsvga3dSetRenderState(pThisCC, cid, 2, renderstate);
4175	AssertRCReturn(rc, rc);
4176
4177	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4178	continue; /* Ignore if blend is enabled */
4179	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4180	} RT_FALL_THRU();
4181
4182	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4183	enableCap = GL_BLEND;
4184	val = pRenderState[i].uintValue;
4185	break;
4186
4187	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4188	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4189	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4190	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4191	{
4192	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4193	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4194
4195	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4197	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4198	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4199	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4200	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4201	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4203
4204	switch (pRenderState[i].state)
4205	{
4206	case SVGA3D_RS_SRCBLEND:
4207	srcRGB = blendop;
4208	break;
4209	case SVGA3D_RS_DSTBLEND:
4210	dstRGB = blendop;
4211	break;
4212	case SVGA3D_RS_SRCBLENDALPHA:
4213	srcAlpha = blendop;
4214	break;
4215	case SVGA3D_RS_DSTBLENDALPHA:
4216	dstAlpha = blendop;
4217	break;
4218	default:
4219	/* not possible; shut up gcc */
4220	AssertFailed();
4221	break;
4222	}
4223
4224	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4225	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4226	else
4227	glBlendFunc(srcRGB, dstRGB);
4228	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4229	break;
4230	}
4231
4232	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4233	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4234	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4235	{
4236	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4237	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4238	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4239	}
4240	else
4241	{
4242	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4243	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4244	#else
4245	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4246	#endif
4247	}
4248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4249	break;
4250
4251	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4252	{
4253	GLfloat red, green, blue, alpha;
4254
4255	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4256
4257	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4258	glBlendColor(red, green, blue, alpha);
4259	#else
4260	pState->ext.glBlendColor(red, green, blue, alpha);
4261	#endif
4262	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4263	break;
4264	}
4265
4266	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4267	{
4268	GLenum mode = GL_BACK; /* default for OpenGL */
4269
4270	switch (pRenderState[i].uintValue)
4271	{
4272	case SVGA3D_FACE_NONE:
4273	break;
4274	case SVGA3D_FACE_FRONT:
4275	mode = GL_FRONT;
4276	break;
4277	case SVGA3D_FACE_BACK:
4278	mode = GL_BACK;
4279	break;
4280	case SVGA3D_FACE_FRONT_BACK:
4281	mode = GL_FRONT_AND_BACK;
4282	break;
4283	default:
4284	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4285	break;
4286	}
4287	enableCap = GL_CULL_FACE;
4288	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4289	{
4290	glCullFace(mode);
4291	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4292	val = 1;
4293	}
4294	else
4295	val = 0;
4296	break;
4297	}
4298
4299	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4300	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4301	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4302	break;
4303
4304	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4305	{
4306	GLclampf ref;
4307
4308	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4309	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4310	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4311	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4312	break;
4313	}
4314
4315	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4316	{
4317	GLint func;
4318
4319	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4320	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4321	glAlphaFunc(func, pRenderState[i].floatValue);
4322	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4323	break;
4324	}
4325
4326	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4327	{
4328	/* Refresh the stencil state based on the new enable setting.
4329	* This will take existing states and set them using either glStencil or glStencil*Separate.
4330	*/
4331	static SVGA3dRenderStateName const saRefreshState[] =
4332	{
4333	SVGA3D_RS_STENCILFUNC,
4334	SVGA3D_RS_STENCILFAIL,
4335	SVGA3D_RS_CCWSTENCILFUNC,
4336	SVGA3D_RS_CCWSTENCILFAIL
4337	};
4338	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4339	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4340	{
4341	renderstate[j].state = saRefreshState[j];
4342	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4343	}
4344
4345	rc = vmsvga3dSetRenderState(pThisCC, cid, RT_ELEMENTS(renderstate), renderstate);
4346	AssertRCReturn(rc, rc);
4347
4348	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4349	continue; /* Ignore if stencil is enabled */
4350	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4351	} RT_FALL_THRU();
4352
4353	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4354	enableCap = GL_STENCIL_TEST;
4355	val = pRenderState[i].uintValue;
4356	break;
4357
4358	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4359	case SVGA3D_RS_STENCILREF: /* uint32_t */
4360	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4361	{
4362	GLint func, ref;
4363	GLuint mask;
4364
4365	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4366	glGetIntegerv(GL_STENCIL_FUNC, &func);
4367	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4368	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4369	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4370	glGetIntegerv(GL_STENCIL_REF, &ref);
4371	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4372
4373	/* Update the changed value. */
4374	switch (pRenderState[i].state)
4375	{
4376	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4377	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4378	break;
4379
4380	case SVGA3D_RS_STENCILREF: /* uint32_t */
4381	ref = pRenderState[i].uintValue;
4382	break;
4383
4384	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4385	mask = pRenderState[i].uintValue;
4386	break;
4387
4388	default:
4389	/* not possible; shut up gcc */
4390	AssertFailed();
4391	break;
4392	}
4393
4394	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4395	{
4396	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4397	}
4398	else
4399	{
4400	glStencilFunc(func, ref, mask);
4401	}
4402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4403	break;
4404	}
4405
4406	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4407	glStencilMask(pRenderState[i].uintValue);
4408	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4409	break;
4410
4411	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4412	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4413	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4414	{
4415	GLint sfail, dpfail, dppass;
4416	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4417
4418	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4419	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4420	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4421	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4422	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4423	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4424
4425	switch (pRenderState[i].state)
4426	{
4427	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4428	sfail = stencilop;
4429	break;
4430	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4431	dpfail = stencilop;
4432	break;
4433	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4434	dppass = stencilop;
4435	break;
4436	default:
4437	/* not possible; shut up gcc */
4438	AssertFailed();
4439	break;
4440	}
4441	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4442	{
4443	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4444	}
4445	else
4446	{
4447	glStencilOp(sfail, dpfail, dppass);
4448	}
4449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4450	break;
4451	}
4452
4453	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4454	{
4455	GLint ref;
4456	GLuint mask;
4457	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4458
4459	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4460	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4461	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4462	glGetIntegerv(GL_STENCIL_REF, &ref);
4463	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4464
4465	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4466	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4467	break;
4468	}
4469
4470	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4471	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4472	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4473	{
4474	GLint sfail, dpfail, dppass;
4475	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4476
4477	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4479	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4480	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4481	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4483
4484	switch (pRenderState[i].state)
4485	{
4486	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4487	sfail = stencilop;
4488	break;
4489	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4490	dpfail = stencilop;
4491	break;
4492	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4493	dppass = stencilop;
4494	break;
4495	default:
4496	/* not possible; shut up gcc */
4497	AssertFailed();
4498	break;
4499	}
4500	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4502	break;
4503	}
4504
4505	case SVGA3D_RS_ZBIAS: /* float */
4506	/** @todo unknown meaning; depth bias is not identical
4507	renderState = D3DRS_DEPTHBIAS;
4508	val = pRenderState[i].uintValue;
4509	*/
4510	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4511	break;
4512
4513	case SVGA3D_RS_DEPTHBIAS: /* float */
4514	{
4515	GLfloat factor;
4516
4517	/** @todo not sure if the d3d & ogl definitions are identical. */
4518
4519	/* Do not change the factor part. */
4520	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4521	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4522
4523	glPolygonOffset(factor, pRenderState[i].floatValue);
4524	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4525	break;
4526	}
4527
4528	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4529	{
4530	GLfloat units;
4531
4532	/** @todo not sure if the d3d & ogl definitions are identical. */
4533
4534	/* Do not change the factor part. */
4535	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4536	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4537
4538	glPolygonOffset(pRenderState[i].floatValue, units);
4539	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4540	break;
4541	}
4542
4543	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4544	{
4545	GLboolean red, green, blue, alpha;
4546	SVGA3dColorMask mask;
4547
4548	mask.uintValue = pRenderState[i].uintValue;
4549
4550	red = mask.s.red;
4551	green = mask.s.green;
4552	blue = mask.s.blue;
4553	alpha = mask.s.alpha;
4554
4555	glColorMask(red, green, blue, alpha);
4556	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4557	break;
4558	}
4559
4560	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4561	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4562	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4563	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4564	break;
4565
4566	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4567	enableCap = GL_SCISSOR_TEST;
4568	val = pRenderState[i].uintValue;
4569	break;
4570
4571	#if 0
4572	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4573	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4574	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4575	val = pRenderState[i].uintValue;
4576	break;
4577
4578	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4579	renderState = D3DRS_SPECULARMATERIALSOURCE;
4580	val = pRenderState[i].uintValue;
4581	break;
4582
4583	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4584	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4585	val = pRenderState[i].uintValue;
4586	break;
4587
4588	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4589	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4590	val = pRenderState[i].uintValue;
4591	break;
4592	#endif
4593
4594	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4595	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4596	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4597	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4598	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4599	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4600	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4601	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4602	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4603	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4604	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4605	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4606	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4607	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4608	break;
4609
4610	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4611	case SVGA3D_RS_TWEENFACTOR: /* float */
4612	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4613	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4614	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4615	break;
4616
4617	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4618	enableCap = GL_MULTISAMPLE;
4619	val = pRenderState[i].uintValue;
4620	break;
4621
4622	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4623	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4624	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4625	break;
4626
4627	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4628	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4629	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4630	/*
4631	renderState = D3DRS_COORDINATETYPE;
4632	val = pRenderState[i].uintValue;
4633	*/
4634	break;
4635
4636	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4637	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4638	/* Invert the selected mode because of y-inversion (?) */
4639	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4640	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4641	break;
4642
4643	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4644	//AssertFailed();
4645	/*
4646	D3DRS_SRGBWRITEENABLE ??
4647	renderState = D3DRS_OUTPUTGAMMA;
4648	val = pRenderState[i].uintValue;
4649	*/
4650	break;
4651
4652	#if 0
4653
4654	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4655	//AssertFailed();
4656	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4657	val = pRenderState[i].uintValue;
4658	break;
4659
4660	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4661	renderState = D3DRS_TEXTUREFACTOR;
4662	val = pRenderState[i].uintValue;
4663	break;
4664
4665	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4666	renderState = D3DRS_LOCALVIEWER;
4667	val = pRenderState[i].uintValue;
4668	break;
4669
4670	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4671	AssertFailed();
4672	/*
4673	renderState = D3DRS_ZVISIBLE;
4674	val = pRenderState[i].uintValue;
4675	*/
4676	break;
4677
4678	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4679	renderState = D3DRS_CLIPPING;
4680	val = pRenderState[i].uintValue;
4681	break;
4682
4683	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4684	glTexParameter GL_TEXTURE_WRAP_S
4685	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4686	renderState = D3DRS_WRAP0;
4687	val = pRenderState[i].uintValue;
4688	break;
4689
4690	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4691	glTexParameter GL_TEXTURE_WRAP_T
4692	renderState = D3DRS_WRAP1;
4693	val = pRenderState[i].uintValue;
4694	break;
4695
4696	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4697	glTexParameter GL_TEXTURE_WRAP_R
4698	renderState = D3DRS_WRAP2;
4699	val = pRenderState[i].uintValue;
4700	break;
4701
4702
4703	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4704	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4705	val = pRenderState[i].uintValue;
4706	break;
4707
4708
4709	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4710	renderState = D3DRS_BLENDOPALPHA;
4711	val = pRenderState[i].uintValue;
4712	break;
4713
4714	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4715	AssertFailed();
4716	/*
4717	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4718	val = pRenderState[i].uintValue;
4719	*/
4720	break;
4721
4722	#endif
4723	default:
4724	AssertFailed();
4725	break;
4726	}
4727
4728	if (enableCap != ~(GLenum)0)
4729	{
4730	if (val)
4731	glEnable(enableCap);
4732	else
4733	glDisable(enableCap);
4734	}
4735	}
4736
4737	return VINF_SUCCESS;
4738	}
4739
4740	int vmsvga3dSetRenderTarget(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4741	{
4742	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4743
4744	AssertReturn(pState, VERR_NO_MEMORY);
4745	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4746
4747	LogFunc(("cid=%u type=%x sid=%u\n", cid, type, target.sid));
4748
4749	PVMSVGA3DCONTEXT pContext;
4750	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4751	AssertRCReturn(rc, rc);
4752
4753	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4754
4755	/* Save for vm state save/restore. */
4756	pContext->state.aRenderTargets[type] = target.sid;
4757
4758	if (target.sid == SVGA3D_INVALID_ID)
4759	{
4760	/* Disable render target. */
4761	switch (type)
4762	{
4763	case SVGA3D_RT_DEPTH:
4764	case SVGA3D_RT_STENCIL:
4765	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4766	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4767	break;
4768
4769	case SVGA3D_RT_COLOR0:
4770	case SVGA3D_RT_COLOR1:
4771	case SVGA3D_RT_COLOR2:
4772	case SVGA3D_RT_COLOR3:
4773	case SVGA3D_RT_COLOR4:
4774	case SVGA3D_RT_COLOR5:
4775	case SVGA3D_RT_COLOR6:
4776	case SVGA3D_RT_COLOR7:
4777	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4778	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4779	break;
4780
4781	default:
4782	AssertFailedReturn(VERR_INVALID_PARAMETER);
4783	}
4784	return VINF_SUCCESS;
4785	}
4786
4787	PVMSVGA3DSURFACE pRenderTarget;
4788	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
4789	AssertRCReturn(rc, rc);
4790
4791	switch (type)
4792	{
4793	case SVGA3D_RT_DEPTH:
4794	case SVGA3D_RT_STENCIL:
4795	#if 1
4796	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4797	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4798	{
4799	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4800	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4801	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4802	AssertRCReturn(rc, rc);
4803	}
4804
4805	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4806	Assert(!pRenderTarget->fDirty);
4807
4808	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4809
4810	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4811	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4812	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4813	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4814	#else
4815	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4816	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4817	{
4818	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4819	pContext = &pState->SharedCtx;
4820	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4821
4822	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4823	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4824	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
4825
4826	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828
4829	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4830	pRenderTarget->internalFormatGL,
4831	pRenderTarget->paMipmapLevels[0].mipmapSize.width,
4832	pRenderTarget->paMipmapLevels[0].mipmapSize.height);
4833	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4834
4835	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4836	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4837
4838	pContext = pState->papContexts[cid];
4839	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4840	pRenderTarget->idWeakContextAssociation = cid;
4841	}
4842
4843	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4844	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4845	Assert(!pRenderTarget->fDirty);
4846	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4847
4848	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4849
4850	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4851	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4852	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4853	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4854	#endif
4855	break;
4856
4857	case SVGA3D_RT_COLOR0:
4858	case SVGA3D_RT_COLOR1:
4859	case SVGA3D_RT_COLOR2:
4860	case SVGA3D_RT_COLOR3:
4861	case SVGA3D_RT_COLOR4:
4862	case SVGA3D_RT_COLOR5:
4863	case SVGA3D_RT_COLOR6:
4864	case SVGA3D_RT_COLOR7:
4865	{
4866	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4867	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4868	{
4869	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));
4870	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4871	AssertRCReturn(rc, rc);
4872	}
4873
4874	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4875	Assert(!pRenderTarget->fDirty);
4876
4877	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4878
4879	GLenum textarget;
4880	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4881	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4882	else
4883	textarget = GL_TEXTURE_2D;
4884	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4885	textarget, pRenderTarget->oglId.texture, target.mipmap);
4886	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4887
4888	#ifdef DEBUG
4889	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4890	if (status != GL_FRAMEBUFFER_COMPLETE)
4891	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4892	#endif
4893	/** @todo use glDrawBuffers too? */
4894	break;
4895	}
4896
4897	default:
4898	AssertFailedReturn(VERR_INVALID_PARAMETER);
4899	}
4900
4901	return VINF_SUCCESS;
4902	}
4903
4904	#if 0
4905	/**
4906	* Convert SVGA texture combiner value to its D3D equivalent
4907	*/
4908	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4909	{
4910	switch (value)
4911	{
4912	case SVGA3D_TC_DISABLE:
4913	return D3DTOP_DISABLE;
4914	case SVGA3D_TC_SELECTARG1:
4915	return D3DTOP_SELECTARG1;
4916	case SVGA3D_TC_SELECTARG2:
4917	return D3DTOP_SELECTARG2;
4918	case SVGA3D_TC_MODULATE:
4919	return D3DTOP_MODULATE;
4920	case SVGA3D_TC_ADD:
4921	return D3DTOP_ADD;
4922	case SVGA3D_TC_ADDSIGNED:
4923	return D3DTOP_ADDSIGNED;
4924	case SVGA3D_TC_SUBTRACT:
4925	return D3DTOP_SUBTRACT;
4926	case SVGA3D_TC_BLENDTEXTUREALPHA:
4927	return D3DTOP_BLENDTEXTUREALPHA;
4928	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4929	return D3DTOP_BLENDDIFFUSEALPHA;
4930	case SVGA3D_TC_BLENDCURRENTALPHA:
4931	return D3DTOP_BLENDCURRENTALPHA;
4932	case SVGA3D_TC_BLENDFACTORALPHA:
4933	return D3DTOP_BLENDFACTORALPHA;
4934	case SVGA3D_TC_MODULATE2X:
4935	return D3DTOP_MODULATE2X;
4936	case SVGA3D_TC_MODULATE4X:
4937	return D3DTOP_MODULATE4X;
4938	case SVGA3D_TC_DSDT:
4939	AssertFailed(); /** @todo ??? */
4940	return D3DTOP_DISABLE;
4941	case SVGA3D_TC_DOTPRODUCT3:
4942	return D3DTOP_DOTPRODUCT3;
4943	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4944	return D3DTOP_BLENDTEXTUREALPHAPM;
4945	case SVGA3D_TC_ADDSIGNED2X:
4946	return D3DTOP_ADDSIGNED2X;
4947	case SVGA3D_TC_ADDSMOOTH:
4948	return D3DTOP_ADDSMOOTH;
4949	case SVGA3D_TC_PREMODULATE:
4950	return D3DTOP_PREMODULATE;
4951	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4952	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4953	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4954	return D3DTOP_MODULATECOLOR_ADDALPHA;
4955	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4956	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4957	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4958	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4959	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4960	return D3DTOP_BUMPENVMAPLUMINANCE;
4961	case SVGA3D_TC_MULTIPLYADD:
4962	return D3DTOP_MULTIPLYADD;
4963	case SVGA3D_TC_LERP:
4964	return D3DTOP_LERP;
4965	default:
4966	AssertFailed();
4967	return D3DTOP_DISABLE;
4968	}
4969	}
4970
4971	/**
4972	* Convert SVGA texture arg data value to its D3D equivalent
4973	*/
4974	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4975	{
4976	switch (value)
4977	{
4978	case SVGA3D_TA_CONSTANT:
4979	return D3DTA_CONSTANT;
4980	case SVGA3D_TA_PREVIOUS:
4981	return D3DTA_CURRENT; /* current = previous */
4982	case SVGA3D_TA_DIFFUSE:
4983	return D3DTA_DIFFUSE;
4984	case SVGA3D_TA_TEXTURE:
4985	return D3DTA_TEXTURE;
4986	case SVGA3D_TA_SPECULAR:
4987	return D3DTA_SPECULAR;
4988	default:
4989	AssertFailed();
4990	return 0;
4991	}
4992	}
4993
4994	/**
4995	* Convert SVGA texture transform flag value to its D3D equivalent
4996	*/
4997	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4998	{
4999	switch (value)
5000	{
5001	case SVGA3D_TEX_TRANSFORM_OFF:
5002	return D3DTTFF_DISABLE;
5003	case SVGA3D_TEX_TRANSFORM_S:
5004	return D3DTTFF_COUNT1; /** @todo correct? */
5005	case SVGA3D_TEX_TRANSFORM_T:
5006	return D3DTTFF_COUNT2; /** @todo correct? */
5007	case SVGA3D_TEX_TRANSFORM_R:
5008	return D3DTTFF_COUNT3; /** @todo correct? */
5009	case SVGA3D_TEX_TRANSFORM_Q:
5010	return D3DTTFF_COUNT4; /** @todo correct? */
5011	case SVGA3D_TEX_PROJECTED:
5012	return D3DTTFF_PROJECTED;
5013	default:
5014	AssertFailed();
5015	return 0;
5016	}
5017	}
5018	#endif
5019
5020	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5021	{
5022	switch (value)
5023	{
5024	case SVGA3D_TEX_ADDRESS_WRAP:
5025	return GL_REPEAT;
5026	case SVGA3D_TEX_ADDRESS_MIRROR:
5027	return GL_MIRRORED_REPEAT;
5028	case SVGA3D_TEX_ADDRESS_CLAMP:
5029	return GL_CLAMP_TO_EDGE;
5030	case SVGA3D_TEX_ADDRESS_BORDER:
5031	return GL_CLAMP_TO_BORDER;
5032	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5033	AssertFailed();
5034	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5035
5036	case SVGA3D_TEX_ADDRESS_EDGE:
5037	case SVGA3D_TEX_ADDRESS_INVALID:
5038	default:
5039	AssertFailed();
5040	return GL_REPEAT; /* default */
5041	}
5042	}
5043
5044	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5045	{
5046	switch (value)
5047	{
5048	case SVGA3D_TEX_FILTER_NONE:
5049	case SVGA3D_TEX_FILTER_LINEAR:
5050	case SVGA3D_TEX_FILTER_ANISOTROPIC: /* Anisotropic filtering is controlled by SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL */
5051	return GL_LINEAR;
5052	case SVGA3D_TEX_FILTER_NEAREST:
5053	return GL_NEAREST;
5054	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5055	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5056	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5057	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5058	default:
5059	AssertFailed();
5060	return GL_LINEAR; /* default */
5061	}
5062	}
5063
5064	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5065	{
5066	/* flip the red and blue bytes */
5067	uint8_t blue = value & 0xff;
5068	uint8_t red = (value >> 16) & 0xff;
5069	return (value & 0xff00ff00) \| red \| (blue << 16);
5070	}
5071
5072	int vmsvga3dSetTextureState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5073	{
5074	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5075	GLenum currentStage = ~(GLenum)0;
5076	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5077	AssertReturn(pState, VERR_NO_MEMORY);
5078
5079	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5080
5081	PVMSVGA3DCONTEXT pContext;
5082	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5083	AssertRCReturn(rc, rc);
5084
5085	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5086
5087	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
5088	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
5089
5090	for (uint32_t i = 0; i < cTextureStates; ++i)
5091	{
5092	GLenum textureType = ~(GLenum)0;
5093	#if 0
5094	GLenum samplerType = ~(GLenum)0;
5095	#endif
5096
5097	LogFunc(("cid=%u stage=%d type=%s (%x) val=%x\n",
5098	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5099
5100	/* Record the texture state for vm state saving. */
5101	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5102	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5103	{
5104	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5105	}
5106
5107	/* Activate the right texture unit for subsequent texture state changes. */
5108	if (pTextureState[i].stage != currentStage \|\| i == 0)
5109	{
5110	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5111	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5112	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5113	{
5114	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5115	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5116	currentStage = pTextureState[i].stage;
5117	}
5118	else
5119	{
5120	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5121	continue;
5122	}
5123
5124	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
5125	{
5126	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
5127	AssertRCReturn(rc, rc);
5128	}
5129	else
5130	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
5131	}
5132
5133	switch (pTextureState[i].name)
5134	{
5135	case SVGA3D_TS_BUMPENVMAT00: /* float */
5136	case SVGA3D_TS_BUMPENVMAT01: /* float */
5137	case SVGA3D_TS_BUMPENVMAT10: /* float */
5138	case SVGA3D_TS_BUMPENVMAT11: /* float */
5139	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5140	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5141	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5142	break;
5143
5144	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5145	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5146	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5147	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5148	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5149	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5150	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5151	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5152	/** @todo not used by MesaGL */
5153	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5154	break;
5155	#if 0
5156
5157	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5158	textureType = D3DTSS_TEXCOORDINDEX;
5159	val = pTextureState[i].value;
5160	break;
5161
5162	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5163	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5164	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5165	break;
5166	#endif
5167
5168	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5169	{
5170	uint32_t const sid = pTextureState[i].value;
5171
5172	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u replacing sid=%u\n",
5173	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
5174
5175	/* Only if texture actually changed. */ /// @todo needs testing.
5176	if (pContext->aSidActiveTextures[currentStage] != sid)
5177	{
5178	if (pCurrentTextureSurface)
5179	{
5180	/* Unselect the currently associated texture. */
5181	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5183
5184	if (currentStage < 8)
5185	{
5186	/* Necessary for the fixed pipeline. */
5187	glDisable(pCurrentTextureSurface->targetGL);
5188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5189	}
5190
5191	pCurrentTextureSurface = NULL;
5192	}
5193
5194	if (sid == SVGA3D_INVALID_ID)
5195	{
5196	Assert(pCurrentTextureSurface == NULL);
5197	}
5198	else
5199	{
5200	PVMSVGA3DSURFACE pSurface;
5201	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5202	AssertRCReturn(rc, rc);
5203
5204	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u (%d,%d) replacing sid=%u\n",
5205	currentStage, sid, pSurface->paMipmapLevels[0].mipmapSize.width,
5206	pSurface->paMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5207
5208	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5209	{
5210	Log(("CreateTexture (%d,%d) levels=%d\n",
5211	pSurface->paMipmapLevels[0].mipmapSize.width, pSurface->paMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5212	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5213	AssertRCReturn(rc, rc);
5214	}
5215
5216	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5217	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5218
5219	if (currentStage < 8)
5220	{
5221	/* Necessary for the fixed pipeline. */
5222	glEnable(pSurface->targetGL);
5223	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5224	}
5225
5226	/* Remember the currently active texture. */
5227	pCurrentTextureSurface = pSurface;
5228
5229	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5230	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5231	{
5232	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5233	{
5234	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5235
5236	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5237	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5238	vmsvga3dSetTextureState(pThisCC, pContext->id, 1, pTextureStateIter);
5239	}
5240	}
5241	}
5242
5243	pContext->aSidActiveTextures[currentStage] = sid;
5244	}
5245
5246	/* Finished; continue with the next one. */
5247	continue;
5248	}
5249
5250	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5251	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5252	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5253	break;
5254
5255	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5256	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5257	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5258	break;
5259
5260	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5261	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5262	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5263	break;
5264
5265	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5266	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5267	{
5268	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5269	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5270
5271	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5272	textureType = GL_TEXTURE_MIN_FILTER;
5273	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5274	{
5275	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5276	{
5277	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5278	val = GL_NEAREST_MIPMAP_LINEAR;
5279	else
5280	val = GL_NEAREST_MIPMAP_NEAREST;
5281	}
5282	else
5283	{
5284	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5285	val = GL_LINEAR_MIPMAP_LINEAR;
5286	else
5287	val = GL_LINEAR_MIPMAP_NEAREST;
5288	}
5289	}
5290	else
5291	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5292	break;
5293	}
5294
5295	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5296	textureType = GL_TEXTURE_MAG_FILTER;
5297	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5298	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5299	break;
5300
5301	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5302	{
5303	GLfloat color[4]; /* red, green, blue, alpha */
5304	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5305
5306	GLenum targetGL;
5307	if (pCurrentTextureSurface)
5308	targetGL = pCurrentTextureSurface->targetGL;
5309	else
5310	{
5311	/* No texture bound, assume 2D. */
5312	targetGL = GL_TEXTURE_2D;
5313	}
5314
5315	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5316	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5317	break;
5318	}
5319
5320	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5321	{
5322	GLenum targetGL;
5323	if (pCurrentTextureSurface)
5324	targetGL = pCurrentTextureSurface->targetGL;
5325	else
5326	{
5327	/* No texture bound, assume 2D. */
5328	targetGL = GL_TEXTURE_2D;
5329	}
5330
5331	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5332	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5333	break;
5334	}
5335
5336	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5337	textureType = GL_TEXTURE_BASE_LEVEL;
5338	val = pTextureState[i].value;
5339	break;
5340
5341	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5342	if (pState->caps.fTextureFilterAnisotropicSupported)
5343	{
5344	textureType = GL_TEXTURE_MAX_ANISOTROPY_EXT;
5345	val = RT_MIN((GLint)pTextureState[i].value, pState->caps.maxTextureAnisotropy);
5346	} /* otherwise ignore. */
5347	break;
5348
5349	#if 0
5350	case SVGA3D_TS_GAMMA: /* float */
5351	samplerType = D3DSAMP_SRGBTEXTURE;
5352	/* Boolean in D3D */
5353	if (pTextureState[i].floatValue == 1.0f)
5354	val = FALSE;
5355	else
5356	val = TRUE;
5357	break;
5358	#endif
5359	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5360	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5361	AssertFailed();
5362	break;
5363
5364	default:
5365	//AssertFailed();
5366	break;
5367	}
5368
5369	if (textureType != ~(GLenum)0)
5370	{
5371	GLenum targetGL;
5372	if (pCurrentTextureSurface)
5373	targetGL = pCurrentTextureSurface->targetGL;
5374	else
5375	{
5376	/* No texture bound, assume 2D. */
5377	targetGL = GL_TEXTURE_2D;
5378	}
5379
5380	switch (pTextureState[i].name)
5381	{
5382	case SVGA3D_TS_MINFILTER:
5383	case SVGA3D_TS_MAGFILTER:
5384	{
5385	if (pState->caps.fTextureFilterAnisotropicSupported)
5386	{
5387	uint32_t const anisotropyLevel = (SVGA3dTextureFilter)pTextureState[i].value == SVGA3D_TEX_FILTER_ANISOTROPIC
5388	? RT_MAX(1, pContext->state.aTextureStates[currentStage][SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL].value)
5389	: 1;
5390	glTexParameteri(targetGL, GL_TEXTURE_MAX_ANISOTROPY_EXT, RT_MIN((GLint)anisotropyLevel, pState->caps.maxTextureAnisotropy));
5391	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5392	}
5393	} break;
5394
5395	default: break;
5396	}
5397
5398	glTexParameteri(targetGL, textureType, val);
5399	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5400	}
5401	}
5402
5403	return VINF_SUCCESS;
5404	}
5405
5406	int vmsvga3dSetMaterial(PVGASTATECC pThisCC, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5407	{
5408	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5409	AssertReturn(pState, VERR_NO_MEMORY);
5410
5411	LogFunc(("cid=%u face %d\n", cid, face));
5412
5413	PVMSVGA3DCONTEXT pContext;
5414	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5415	AssertRCReturn(rc, rc);
5416
5417	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5418
5419	GLenum oglFace;
5420	switch (face)
5421	{
5422	case SVGA3D_FACE_NONE:
5423	case SVGA3D_FACE_FRONT:
5424	oglFace = GL_FRONT;
5425	break;
5426
5427	case SVGA3D_FACE_BACK:
5428	oglFace = GL_BACK;
5429	break;
5430
5431	case SVGA3D_FACE_FRONT_BACK:
5432	oglFace = GL_FRONT_AND_BACK;
5433	break;
5434
5435	default:
5436	AssertFailedReturn(VERR_INVALID_PARAMETER);
5437	}
5438
5439	/* Save for vm state save/restore. */
5440	pContext->state.aMaterial[face].fValid = true;
5441	pContext->state.aMaterial[face].material = *pMaterial;
5442	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5443
5444	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5445	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5446	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5447	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5448	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5450
5451	return VINF_SUCCESS;
5452	}
5453
5454	/** @todo Move into separate library as we are using logic from Wine here. */
5455	int vmsvga3dSetLightData(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5456	{
5457	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5458	AssertReturn(pState, VERR_NO_MEMORY);
5459
5460	LogFunc(("vmsvga3dSetLightData cid=%u index=%d type=%d\n", cid, index, pData->type));
5461	AssertReturn(index < SVGA3D_MAX_LIGHTS, VERR_INVALID_PARAMETER);
5462
5463	PVMSVGA3DCONTEXT pContext;
5464	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5465	AssertRCReturn(rc, rc);
5466
5467	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5468
5469	/* Store for vm state save/restore */
5470	pContext->state.aLightData[index].fValidData = true;
5471	pContext->state.aLightData[index].data = *pData;
5472
5473	if ( pData->attenuation0 < 0.0f
5474	\|\| pData->attenuation1 < 0.0f
5475	\|\| pData->attenuation2 < 0.0f)
5476	{
5477	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5478	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5479	}
5480
5481	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5482	glMatrixMode(GL_MODELVIEW);
5483	glPushMatrix();
5484	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5485
5486	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5487	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5488	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5489
5490	float QuadAttenuation;
5491	if (pData->range * pData->range >= FLT_MIN)
5492	QuadAttenuation = 1.4f / (pData->range * pData->range);
5493	else
5494	QuadAttenuation = 0.0f;
5495
5496	switch (pData->type)
5497	{
5498	case SVGA3D_LIGHTTYPE_POINT:
5499	{
5500	GLfloat position[4];
5501
5502	position[0] = pData->position[0];
5503	position[1] = pData->position[1];
5504	position[2] = pData->position[2];
5505	position[3] = 1.0f;
5506
5507	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5508	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5509
5510	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5511	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5512
5513	/* Attenuation - Are these right? guessing... */
5514	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5515	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5516
5517	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5518	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5519
5520	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5521	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5522
5523	/** @todo range */
5524	break;
5525	}
5526
5527	case SVGA3D_LIGHTTYPE_SPOT1:
5528	{
5529	GLfloat exponent;
5530	GLfloat position[4];
5531	const GLfloat pi = 4.0f * atanf(1.0f);
5532
5533	position[0] = pData->position[0];
5534	position[1] = pData->position[1];
5535	position[2] = pData->position[2];
5536	position[3] = 1.0f;
5537
5538	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5539	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5540
5541	position[0] = pData->direction[0];
5542	position[1] = pData->direction[1];
5543	position[2] = pData->direction[2];
5544	position[3] = 1.0f;
5545
5546	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5547	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5548
5549	/*
5550	* opengl-ish and d3d-ish spot lights use too different models for the
5551	* light "intensity" as a function of the angle towards the main light direction,
5552	* so we only can approximate very roughly.
5553	* however spot lights are rather rarely used in games (if ever used at all).
5554	* furthermore if still used, probably nobody pays attention to such details.
5555	*/
5556	if (pData->falloff == 0)
5557	{
5558	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5559	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5560	* will always be 1.0 for both of them, and we don't have to care for the
5561	* rest of the rather complex calculation
5562	*/
5563	exponent = 0.0f;
5564	}
5565	else
5566	{
5567	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5568	if (rho < 0.0001f)
5569	rho = 0.0001f;
5570	exponent = -0.3f/log(cos(rho/2));
5571	}
5572	if (exponent > 128.0f)
5573	exponent = 128.0f;
5574
5575	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5576	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5577
5578	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5579	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5580
5581	/* Attenuation - Are these right? guessing... */
5582	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5583	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5584
5585	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5586	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5587
5588	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5589	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5590
5591	/** @todo range */
5592	break;
5593	}
5594
5595	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5596	{
5597	GLfloat position[4];
5598
5599	position[0] = -pData->direction[0];
5600	position[1] = -pData->direction[1];
5601	position[2] = -pData->direction[2];
5602	position[3] = 0.0f;
5603
5604	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5605	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5606
5607	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5608	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5609
5610	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5611	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5612	break;
5613	}
5614
5615	case SVGA3D_LIGHTTYPE_SPOT2:
5616	default:
5617	Log(("Unsupported light type!!\n"));
5618	rc = VERR_INVALID_PARAMETER;
5619	break;
5620	}
5621
5622	/* Restore the modelview matrix */
5623	glPopMatrix();
5624
5625	return rc;
5626	}
5627
5628	int vmsvga3dSetLightEnabled(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, uint32_t enabled)
5629	{
5630	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5631	AssertReturn(pState, VERR_NO_MEMORY);
5632
5633	LogFunc(("cid=%u %d -> %d\n", cid, index, enabled));
5634
5635	PVMSVGA3DCONTEXT pContext;
5636	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5637	AssertRCReturn(rc, rc);
5638
5639	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5640
5641	/* Store for vm state save/restore */
5642	if (index < SVGA3D_MAX_LIGHTS)
5643	pContext->state.aLightData[index].fEnabled = !!enabled;
5644	else
5645	AssertFailed();
5646
5647	if (enabled)
5648	{
5649	if (index < SVGA3D_MAX_LIGHTS)
5650	{
5651	/* Load the default settings if none have been set yet. */
5652	if (!pContext->state.aLightData[index].fValidData)
5653	vmsvga3dSetLightData(pThisCC, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5654	}
5655	glEnable(GL_LIGHT0 + index);
5656	}
5657	else
5658	glDisable(GL_LIGHT0 + index);
5659
5660	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5661	return VINF_SUCCESS;
5662	}
5663
5664	int vmsvga3dSetViewPort(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
5665	{
5666	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5667	AssertReturn(pState, VERR_NO_MEMORY);
5668
5669	Log(("vmsvga3dSetViewPort cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5670
5671	PVMSVGA3DCONTEXT pContext;
5672	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5673	AssertRCReturn(rc, rc);
5674
5675	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5676
5677	/* Save for vm state save/restore. */
5678	pContext->state.RectViewPort = *pRect;
5679	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5680
5681	/** @todo y-inversion for partial viewport coordinates? */
5682	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5683	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5684
5685	/* Reset the projection matrix as that relies on the viewport setting. */
5686	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5687	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION,
5688	pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5689	else
5690	{
5691	float matrix[16];
5692
5693	/* identity matrix if no matrix set. */
5694	memset(matrix, 0, sizeof(matrix));
5695	matrix[0] = 1.0;
5696	matrix[5] = 1.0;
5697	matrix[10] = 1.0;
5698	matrix[15] = 1.0;
5699	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5700	}
5701
5702	return VINF_SUCCESS;
5703	}
5704
5705	int vmsvga3dSetClipPlane(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, float plane[4])
5706	{
5707	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5708	AssertReturn(pState, VERR_NO_MEMORY);
5709	double oglPlane[4];
5710
5711	Log(("vmsvga3dSetClipPlane cid=%u %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5712	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5713
5714	PVMSVGA3DCONTEXT pContext;
5715	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5716	AssertRCReturn(rc, rc);
5717
5718	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5719
5720	/* Store for vm state save/restore. */
5721	pContext->state.aClipPlane[index].fValid = true;
5722	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5723
5724	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5725	oglPlane[0] = (double)plane[0];
5726	oglPlane[1] = (double)plane[1];
5727	oglPlane[2] = (double)plane[2];
5728	oglPlane[3] = (double)plane[3];
5729
5730	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5731	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5732
5733	return VINF_SUCCESS;
5734	}
5735
5736	int vmsvga3dSetScissorRect(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
5737	{
5738	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5739	AssertReturn(pState, VERR_NO_MEMORY);
5740
5741	Log(("vmsvga3dSetScissorRect cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5742
5743	PVMSVGA3DCONTEXT pContext;
5744	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5745	AssertRCReturn(rc, rc);
5746
5747	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5748
5749	/* Store for vm state save/restore. */
5750	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5751	pContext->state.RectScissor = *pRect;
5752
5753	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5754	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5755
5756	return VINF_SUCCESS;
5757	}
5758
5759	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5760	{
5761	/* Convert byte color components to float (0-1.0) */
5762	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5763	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5764	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5765	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5766	}
5767
5768	int vmsvga3dCommandClear(PVGASTATECC pThisCC, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5769	uint32_t cRects, SVGA3dRect *pRect)
5770	{
5771	GLbitfield mask = 0;
5772	GLbitfield restoreMask = 0;
5773	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5774	AssertReturn(pState, VERR_NO_MEMORY);
5775	GLboolean fDepthWriteEnabled = GL_FALSE;
5776	GLboolean afColorWriteEnabled[4] = { GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE };
5777
5778	Log(("vmsvga3dCommandClear cid=%u clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5779
5780	PVMSVGA3DCONTEXT pContext;
5781	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5782	AssertRCReturn(rc, rc);
5783
5784	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5785
5786	if (clearFlag & SVGA3D_CLEAR_COLOR)
5787	{
5788	GLfloat red, green, blue, alpha;
5789	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5790
5791	/* Set the color clear value. */
5792	glClearColor(red, green, blue, alpha);
5793	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5794
5795	mask \|= GL_COLOR_BUFFER_BIT;
5796
5797	/* glClear will not clear the color buffer if writing is disabled. */
5798	glGetBooleanv(GL_COLOR_WRITEMASK, afColorWriteEnabled);
5799	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5800	if ( afColorWriteEnabled[0] == GL_FALSE
5801	\|\| afColorWriteEnabled[1] == GL_FALSE
5802	\|\| afColorWriteEnabled[2] == GL_FALSE
5803	\|\| afColorWriteEnabled[3] == GL_FALSE)
5804	{
5805	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
5806	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5807
5808	restoreMask \|= GL_COLOR_BUFFER_BIT;
5809	}
5810
5811	}
5812
5813	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5814	{
5815	/** @todo possibly the same problem as with glDepthMask */
5816	glClearStencil(stencil);
5817	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5818
5819	mask \|= GL_STENCIL_BUFFER_BIT;
5820	}
5821
5822	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5823	{
5824	glClearDepth((GLdouble)depth);
5825	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5826
5827	mask \|= GL_DEPTH_BUFFER_BIT;
5828
5829	/* glClear will not clear the depth buffer if writing is disabled. */
5830	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5831	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5832	if (fDepthWriteEnabled == GL_FALSE)
5833	{
5834	glDepthMask(GL_TRUE);
5835	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5836
5837	restoreMask \|= GL_DEPTH_BUFFER_BIT;
5838	}
5839	}
5840
5841	/* Save the current scissor test bit and scissor box. */
5842	glPushAttrib(GL_SCISSOR_BIT);
5843	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5844
5845	if (cRects)
5846	{
5847	glEnable(GL_SCISSOR_TEST);
5848	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5849
5850	for (uint32_t i = 0; i < cRects; ++i)
5851	{
5852	LogFunc(("rect [%d] %d,%d %dx%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h));
5853	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5854	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5855
5856	glClear(mask);
5857	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5858	}
5859	}
5860	else
5861	{
5862	glDisable(GL_SCISSOR_TEST);
5863	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5864
5865	glClear(mask);
5866	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5867	}
5868
5869	/* Restore the old scissor test bit and box */
5870	glPopAttrib();
5871	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5872
5873	/* Restore the write states. */
5874	if (restoreMask & GL_COLOR_BUFFER_BIT)
5875	{
5876	glColorMask(afColorWriteEnabled[0],
5877	afColorWriteEnabled[1],
5878	afColorWriteEnabled[2],
5879	afColorWriteEnabled[3]);
5880	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5881	}
5882
5883	if (restoreMask & GL_DEPTH_BUFFER_BIT)
5884	{
5885	glDepthMask(fDepthWriteEnabled);
5886	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5887	}
5888
5889	return VINF_SUCCESS;
5890	}
5891
5892	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5893	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized, uint32_t &cbAttrib)
5894	{
5895	normalized = GL_FALSE;
5896	switch (identity.type)
5897	{
5898	case SVGA3D_DECLTYPE_FLOAT1:
5899	size = 1;
5900	type = GL_FLOAT;
5901	cbAttrib = sizeof(float);
5902	break;
5903	case SVGA3D_DECLTYPE_FLOAT2:
5904	size = 2;
5905	type = GL_FLOAT;
5906	cbAttrib = 2 * sizeof(float);
5907	break;
5908	case SVGA3D_DECLTYPE_FLOAT3:
5909	size = 3;
5910	type = GL_FLOAT;
5911	cbAttrib = 3 * sizeof(float);
5912	break;
5913	case SVGA3D_DECLTYPE_FLOAT4:
5914	size = 4;
5915	type = GL_FLOAT;
5916	cbAttrib = 4 * sizeof(float);
5917	break;
5918
5919	case SVGA3D_DECLTYPE_D3DCOLOR:
5920	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5921	type = GL_UNSIGNED_BYTE;
5922	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5923	cbAttrib = sizeof(uint32_t);
5924	break;
5925
5926	case SVGA3D_DECLTYPE_UBYTE4N:
5927	normalized = GL_TRUE;
5928	RT_FALL_THRU();
5929	case SVGA3D_DECLTYPE_UBYTE4:
5930	size = 4;
5931	type = GL_UNSIGNED_BYTE;
5932	cbAttrib = sizeof(uint32_t);
5933	break;
5934
5935	case SVGA3D_DECLTYPE_SHORT2N:
5936	normalized = GL_TRUE;
5937	RT_FALL_THRU();
5938	case SVGA3D_DECLTYPE_SHORT2:
5939	size = 2;
5940	type = GL_SHORT;
5941	cbAttrib = 2 * sizeof(uint16_t);
5942	break;
5943
5944	case SVGA3D_DECLTYPE_SHORT4N:
5945	normalized = GL_TRUE;
5946	RT_FALL_THRU();
5947	case SVGA3D_DECLTYPE_SHORT4:
5948	size = 4;
5949	type = GL_SHORT;
5950	cbAttrib = 4 * sizeof(uint16_t);
5951	break;
5952
5953	case SVGA3D_DECLTYPE_USHORT4N:
5954	normalized = GL_TRUE;
5955	size = 4;
5956	type = GL_UNSIGNED_SHORT;
5957	cbAttrib = 4 * sizeof(uint16_t);
5958	break;
5959
5960	case SVGA3D_DECLTYPE_USHORT2N:
5961	normalized = GL_TRUE;
5962	size = 2;
5963	type = GL_UNSIGNED_SHORT;
5964	cbAttrib = 2 * sizeof(uint16_t);
5965	break;
5966
5967	case SVGA3D_DECLTYPE_UDEC3:
5968	size = 3;
5969	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5970	cbAttrib = sizeof(uint32_t);
5971	break;
5972
5973	case SVGA3D_DECLTYPE_DEC3N:
5974	normalized = true;
5975	size = 3;
5976	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5977	cbAttrib = sizeof(uint32_t);
5978	break;
5979
5980	case SVGA3D_DECLTYPE_FLOAT16_2:
5981	size = 2;
5982	type = GL_HALF_FLOAT;
5983	cbAttrib = 2 * sizeof(uint16_t);
5984	break;
5985	case SVGA3D_DECLTYPE_FLOAT16_4:
5986	size = 4;
5987	type = GL_HALF_FLOAT;
5988	cbAttrib = 4 * sizeof(uint16_t);
5989	break;
5990	default:
5991	AssertFailedReturn(VERR_INVALID_PARAMETER);
5992	}
5993
5994	//pVertexElement->Method = identity.method;
5995	//pVertexElement->Usage = identity.usage;
5996
5997	return VINF_SUCCESS;
5998	}
5999
6000	static float vmsvga3dFloat16To32(uint16_t f16)
6001	{
6002	/* From Wiki */
6003	#ifndef INFINITY
6004	static uint32_t const sBitsINFINITY = UINT32_C(0x7f800000);
6005	#define INFINITY ((float const )&sBitsINFINITY)
6006	#endif
6007	#ifndef NAN
6008	static uint32_t const sBitsNAN = UINT32_C(0x7fc00000);
6009	#define NAN ((float const )&sBitsNAN)
6010	#endif
6011
6012	uint16_t const s = (f16 >> UINT16_C(15)) & UINT16_C(0x1);
6013	uint16_t const e = (f16 >> UINT16_C(10)) & UINT16_C(0x1f);
6014	uint16_t const m = (f16 ) & UINT16_C(0x3ff);
6015
6016	float result = s ? 1.0f : -1.0f;
6017	if (e == 0)
6018	{
6019	if (m == 0)
6020	result = 0.0f; / zero, -0 */
6021	else
6022	result = (float)m / 1024.0f / 16384.0f; / subnormal numbers: sign * 2^-14 * 0.m */
6023	}
6024	else if (e == 0x1f)
6025	{
6026	if (m == 0)
6027	result = INFINITY; / +-infinity */
6028	else
6029	result = NAN; /* NAN */
6030	}
6031	else
6032	{
6033	result = powf(2.0f, (float)e - 15.0f) (1.0f + (float)m / 1024.0f); /* sign * 2^(e-15) * 1.m */
6034	}
6035
6036	return result;
6037	}
6038
6039	/* Set a vertex attribute according to VMSVGA vertex declaration. */
6040	static int vmsvga3dSetVertexAttrib(PVMSVGA3DSTATE pState, GLuint index, SVGA3dVertexArrayIdentity const pIdentity, GLvoid const pv)
6041	{
6042	switch (pIdentity->type)
6043	{
6044	case SVGA3D_DECLTYPE_FLOAT1:
6045	{
6046	/* "One-component float expanded to (float, 0, 0, 1)." */
6047	GLfloat const p = (GLfloat )pv;
6048	GLfloat const v[4] = { p[0], 0.0f, 0.0f, 1.0f };
6049	pState->ext.glVertexAttrib4fv(index, v);
6050	break;
6051	}
6052	case SVGA3D_DECLTYPE_FLOAT2:
6053	{
6054	/* "Two-component float expanded to (float, float, 0, 1)." */
6055	GLfloat const p = (GLfloat )pv;
6056	GLfloat const v[4] = { p[0], p[1], 0.0f, 1.0f };
6057	pState->ext.glVertexAttrib4fv(index, v);
6058	break;
6059	}
6060	case SVGA3D_DECLTYPE_FLOAT3:
6061	{
6062	/* "Three-component float expanded to (float, float, float, 1)." */
6063	GLfloat const p = (GLfloat )pv;
6064	GLfloat const v[4] = { p[0], p[1], p[2], 1.0f };
6065	pState->ext.glVertexAttrib4fv(index, v);
6066	break;
6067	}
6068	case SVGA3D_DECLTYPE_FLOAT4:
6069	pState->ext.glVertexAttrib4fv(index, (GLfloat const *)pv);
6070	break;
6071	case SVGA3D_DECLTYPE_D3DCOLOR:
6072	/** @todo Need to swap bytes? */
6073	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6074	break;
6075	case SVGA3D_DECLTYPE_UBYTE4:
6076	pState->ext.glVertexAttrib4ubv(index, (GLubyte const *)pv);
6077	break;
6078	case SVGA3D_DECLTYPE_SHORT2:
6079	{
6080	/* "Two-component, signed short expanded to (value, value, 0, 1)." */
6081	GLshort const p = (GLshort const )pv;
6082	GLshort const v[4] = { p[0], p[1], 0, 1 };
6083	pState->ext.glVertexAttrib4sv(index, v);
6084	break;
6085	}
6086	case SVGA3D_DECLTYPE_SHORT4:
6087	pState->ext.glVertexAttrib4sv(index, (GLshort const *)pv);
6088	break;
6089	case SVGA3D_DECLTYPE_UBYTE4N:
6090	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6091	break;
6092	case SVGA3D_DECLTYPE_SHORT2N:
6093	{
6094	/* "Normalized, two-component, signed short, expanded to (first short/32767.0, second short/32767.0, 0, 1)." */
6095	GLshort const p = (GLshort const )pv;
6096	GLshort const v[4] = { p[0], p[1], 0, 1 };
6097	pState->ext.glVertexAttrib4Nsv(index, v);
6098	break;
6099	}
6100	case SVGA3D_DECLTYPE_SHORT4N:
6101	pState->ext.glVertexAttrib4Nsv(index, (GLshort const *)pv);
6102	break;
6103	case SVGA3D_DECLTYPE_USHORT2N:
6104	{
6105	GLushort const p = (GLushort const )pv;
6106	GLushort const v[4] = { p[0], p[1], 0, 1 };
6107	pState->ext.glVertexAttrib4Nusv(index, v);
6108	break;
6109	}
6110	case SVGA3D_DECLTYPE_USHORT4N:
6111	pState->ext.glVertexAttrib4Nusv(index, (GLushort const *)pv);
6112	break;
6113	case SVGA3D_DECLTYPE_UDEC3:
6114	{
6115	/** @todo Test */
6116	/* "Three-component, unsigned, 10 10 10 format expanded to (value, value, value, 1)." */
6117	uint32_t const u32 = (uint32_t )pv;
6118	GLfloat const v[4] = { (float)(u32 & 0x3ff), (float)((u32 >> 10) & 0x3ff), (float)((u32 >> 20) & 0x3ff), 1.0f };
6119	pState->ext.glVertexAttrib4fv(index, v);
6120	break;
6121	}
6122	case SVGA3D_DECLTYPE_DEC3N:
6123	{
6124	/** @todo Test */
6125	/* "Three-component, signed, 10 10 10 format normalized and expanded to (v[0]/511.0, v[1]/511.0, v[2]/511.0, 1)." */
6126	uint32_t const u32 = (uint32_t )pv;
6127	GLfloat const v[4] = { (u32 & 0x3ff) / 511.0f, ((u32 >> 10) & 0x3ff) / 511.0f, ((u32 >> 20) & 0x3ff) / 511.0f, 1.0f };
6128	pState->ext.glVertexAttrib4fv(index, v);
6129	break;
6130	}
6131	case SVGA3D_DECLTYPE_FLOAT16_2:
6132	{
6133	/** @todo Test */
6134	/* "Two-component, 16-bit, floating point expanded to (value, value, 0, 1)." */
6135	uint16_t const p = (uint16_t )pv;
6136	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]), 0.0f, 1.0f };
6137	pState->ext.glVertexAttrib4fv(index, v);
6138	break;
6139	}
6140	case SVGA3D_DECLTYPE_FLOAT16_4:
6141	{
6142	/** @todo Test */
6143	uint16_t const p = (uint16_t )pv;
6144	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]),
6145	vmsvga3dFloat16To32(p[2]), vmsvga3dFloat16To32(p[3]) };
6146	pState->ext.glVertexAttrib4fv(index, v);
6147	break;
6148	}
6149	default:
6150	AssertFailedReturn(VERR_INVALID_PARAMETER);
6151	}
6152
6153	return VINF_SUCCESS;
6154	}
6155
6156	/* Convert VMWare primitive type to its OpenGL equivalent. */
6157	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6158	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6159	{
6160	switch (PrimitiveType)
6161	{
6162	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6163	*pMode = GL_TRIANGLES;
6164	pcVertices = cPrimitiveCount 3;
6165	break;
6166	case SVGA3D_PRIMITIVE_POINTLIST:
6167	*pMode = GL_POINTS;
6168	*pcVertices = cPrimitiveCount;
6169	break;
6170	case SVGA3D_PRIMITIVE_LINELIST:
6171	*pMode = GL_LINES;
6172	pcVertices = cPrimitiveCount 2;
6173	break;
6174	case SVGA3D_PRIMITIVE_LINESTRIP:
6175	*pMode = GL_LINE_STRIP;
6176	*pcVertices = cPrimitiveCount + 1;
6177	break;
6178	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
6179	*pMode = GL_TRIANGLE_STRIP;
6180	*pcVertices = cPrimitiveCount + 2;
6181	break;
6182	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
6183	*pMode = GL_TRIANGLE_FAN;
6184	*pcVertices = cPrimitiveCount + 2;
6185	break;
6186	default:
6187	return VERR_INVALID_PARAMETER;
6188	}
6189	return VINF_SUCCESS;
6190	}
6191
6192	static int vmsvga3dResetTransformMatrices(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
6193	{
6194	int rc;
6195
6196	/* Reset the view matrix (also takes the world matrix into account). */
6197	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
6198	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW,
6199	pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6200	else
6201	{
6202	float matrix[16];
6203
6204	/* identity matrix if no matrix set. */
6205	memset(matrix, 0, sizeof(matrix));
6206	matrix[0] = 1.0;
6207	matrix[5] = 1.0;
6208	matrix[10] = 1.0;
6209	matrix[15] = 1.0;
6210	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
6211	}
6212
6213	/* Reset the projection matrix. */
6214	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6215	{
6216	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6217	}
6218	else
6219	{
6220	float matrix[16];
6221
6222	/* identity matrix if no matrix set. */
6223	memset(matrix, 0, sizeof(matrix));
6224	matrix[0] = 1.0;
6225	matrix[5] = 1.0;
6226	matrix[10] = 1.0;
6227	matrix[15] = 1.0;
6228	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
6229	}
6230	AssertRC(rc);
6231	return rc;
6232	}
6233
6234	static int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext,
6235	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
6236	SVGA3dVertexDecl *pVertexDecl,
6237	SVGA3dVertexDivisor const *paVertexDivisors)
6238	{
6239	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6240	unsigned const sidVertex = pVertexDecl[0].array.surfaceId;
6241
6242	PVMSVGA3DSURFACE pVertexSurface;
6243	int rc = vmsvga3dSurfaceFromSid(pState, sidVertex, &pVertexSurface);
6244	AssertRCReturn(rc, rc);
6245
6246	Log(("vmsvga3dDrawPrimitives: vertex surface sid=%u\n", sidVertex));
6247
6248	/* Create and/or bind the vertex buffer. */
6249	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6250	{
6251	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->paMipmapLevels[0].cbSurface));
6252	PVMSVGA3DCONTEXT pSavedCtx = pContext;
6253	pContext = &pState->SharedCtx;
6254	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6255
6256	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6257	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6258	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6259
6260	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6262
6263	Assert(pVertexSurface->fDirty);
6264	/** @todo rethink usage dynamic/static */
6265	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->paMipmapLevels[0].cbSurface, pVertexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6267
6268	pVertexSurface->paMipmapLevels[0].fDirty = false;
6269	pVertexSurface->fDirty = false;
6270
6271	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6272
6273	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6274	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6275
6276	pContext = pSavedCtx;
6277	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6278	}
6279
6280	Assert(pVertexSurface->fDirty == false);
6281	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6282	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6283
6284	/* Setup the vertex declarations. */
6285	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6286	{
6287	GLint size;
6288	GLenum type;
6289	GLboolean normalized;
6290	uint32_t cbAttrib;
6291	GLuint index = iVertexDeclBase + iVertex;
6292
6293	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));
6294
6295	rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized, cbAttrib);
6296	AssertRCReturn(rc, rc);
6297
6298	ASSERT_GUEST_RETURN( pVertexSurface->paMipmapLevels[0].cbSurface >= pVertexDecl[iVertex].array.offset
6299	&& pVertexSurface->paMipmapLevels[0].cbSurface - pVertexDecl[iVertex].array.offset >= cbAttrib,
6300	VERR_INVALID_PARAMETER);
6301	RT_UNTRUSTED_VALIDATED_FENCE();
6302
6303	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6304	{
6305	/* Use numbered vertex arrays (or attributes) when shaders are active. */
6306	if (pVertexDecl[iVertex].array.stride)
6307	{
6308	pState->ext.glEnableVertexAttribArray(index);
6309	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6310	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6311	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6312	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6313
6314	GLuint divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
6315	pState->ext.glVertexAttribDivisor(index, divisor);
6316	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6317
6318	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6319	}
6320	else
6321	{
6322	/*
6323	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6324	* - D3D (VMSVGA): "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6325	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6326	* VMSVGA uses the D3D semantics.
6327	*
6328	* Use glVertexAttrib in order to tell OpenGL to reuse the zero stride attributes for each vertex.
6329	*/
6330	pState->ext.glDisableVertexAttribArray(index);
6331	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6332
6333	const GLvoid v = (uint8_t )pVertexSurface->paMipmapLevels[0].pSurfaceData + pVertexDecl[iVertex].array.offset;
6334	vmsvga3dSetVertexAttrib(pState, index, &pVertexDecl[iVertex].identity, v);
6335	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6336	}
6337	}
6338	else
6339	{
6340	if (pVertexDecl[iVertex].array.stride == 0)
6341	{
6342	/* Zero stride means that the attribute pointer must not be increased.
6343	* See comment about stride in vmsvga3dDrawPrimitives.
6344	*/
6345	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
6346	AssertFailed();
6347	}
6348
6349	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6350	switch (pVertexDecl[iVertex].identity.usage)
6351	{
6352	case SVGA3D_DECLUSAGE_POSITIONT:
6353	case SVGA3D_DECLUSAGE_POSITION:
6354	{
6355	glEnableClientState(GL_VERTEX_ARRAY);
6356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6357	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6358	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6359	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6360	break;
6361	}
6362	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6363	AssertFailed();
6364	break;
6365	case SVGA3D_DECLUSAGE_BLENDINDICES:
6366	AssertFailed();
6367	break;
6368	case SVGA3D_DECLUSAGE_NORMAL:
6369	glEnableClientState(GL_NORMAL_ARRAY);
6370	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6371	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6372	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6373	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6374	break;
6375	case SVGA3D_DECLUSAGE_PSIZE:
6376	AssertFailed();
6377	break;
6378	case SVGA3D_DECLUSAGE_TEXCOORD:
6379	/* Specify the affected texture unit. */
6380	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6381	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6382	#else
6383	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6384	#endif
6385	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6387	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6388	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6389	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6390	break;
6391	case SVGA3D_DECLUSAGE_TANGENT:
6392	AssertFailed();
6393	break;
6394	case SVGA3D_DECLUSAGE_BINORMAL:
6395	AssertFailed();
6396	break;
6397	case SVGA3D_DECLUSAGE_TESSFACTOR:
6398	AssertFailed();
6399	break;
6400	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6401	glEnableClientState(GL_COLOR_ARRAY);
6402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6403	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6404	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6405	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6406	break;
6407	case SVGA3D_DECLUSAGE_FOG:
6408	glEnableClientState(GL_FOG_COORD_ARRAY);
6409	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6410	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6411	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6413	break;
6414	case SVGA3D_DECLUSAGE_DEPTH:
6415	AssertFailed();
6416	break;
6417	case SVGA3D_DECLUSAGE_SAMPLE:
6418	AssertFailed();
6419	break;
6420	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6421	}
6422	}
6423
6424	#ifdef LOG_ENABLED
6425	if (pVertexDecl[iVertex].array.stride == 0)
6426	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6427	#endif
6428	}
6429
6430	return VINF_SUCCESS;
6431	}
6432
6433	static int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase,
6434	uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6435	{
6436	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6437
6438	/* Clean up the vertex declarations. */
6439	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6440	{
6441	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6442	{
6443	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6444	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6445	vmsvga3dResetTransformMatrices(pThisCC, pContext);
6446	}
6447
6448	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6449	{
6450	/* Use numbered vertex arrays when shaders are active. */
6451	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6452	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6453	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6454	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6455	}
6456	else
6457	{
6458	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6459	switch (pVertexDecl[iVertex].identity.usage)
6460	{
6461	case SVGA3D_DECLUSAGE_POSITION:
6462	case SVGA3D_DECLUSAGE_POSITIONT:
6463	glDisableClientState(GL_VERTEX_ARRAY);
6464	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6465	break;
6466	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6467	break;
6468	case SVGA3D_DECLUSAGE_BLENDINDICES:
6469	break;
6470	case SVGA3D_DECLUSAGE_NORMAL:
6471	glDisableClientState(GL_NORMAL_ARRAY);
6472	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6473	break;
6474	case SVGA3D_DECLUSAGE_PSIZE:
6475	break;
6476	case SVGA3D_DECLUSAGE_TEXCOORD:
6477	/* Specify the affected texture unit. */
6478	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6479	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6480	#else
6481	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6482	#endif
6483	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6484	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6485	break;
6486	case SVGA3D_DECLUSAGE_TANGENT:
6487	break;
6488	case SVGA3D_DECLUSAGE_BINORMAL:
6489	break;
6490	case SVGA3D_DECLUSAGE_TESSFACTOR:
6491	break;
6492	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6493	glDisableClientState(GL_COLOR_ARRAY);
6494	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6495	break;
6496	case SVGA3D_DECLUSAGE_FOG:
6497	glDisableClientState(GL_FOG_COORD_ARRAY);
6498	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6499	break;
6500	case SVGA3D_DECLUSAGE_DEPTH:
6501	break;
6502	case SVGA3D_DECLUSAGE_SAMPLE:
6503	break;
6504	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6505	}
6506	}
6507	}
6508	/* Unbind the vertex buffer after usage. */
6509	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6510	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6511	return VINF_SUCCESS;
6512	}
6513
6514	int vmsvga3dDrawPrimitives(PVGASTATECC pThisCC, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6515	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6516	SVGA3dVertexDivisor *pVertexDivisor)
6517	{
6518	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6519	AssertReturn(pState, VERR_INTERNAL_ERROR);
6520	uint32_t iCurrentVertex;
6521
6522	Log(("vmsvga3dDrawPrimitives cid=%u numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6523
6524	/* Caller already check these, but it cannot hurt to check again... */
6525	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6526	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6527	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6528
6529	if (!cVertexDivisor)
6530	pVertexDivisor = NULL; /* Be sure. */
6531
6532	PVMSVGA3DCONTEXT pContext;
6533	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6534	AssertRCReturn(rc, rc);
6535
6536	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6537
6538	/* Check for pretransformed vertex declarations. */
6539	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6540	{
6541	switch (pVertexDecl[iVertex].identity.usage)
6542	{
6543	case SVGA3D_DECLUSAGE_POSITIONT:
6544	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6545	RT_FALL_THRU();
6546	case SVGA3D_DECLUSAGE_POSITION:
6547	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6548	pContext->state.RectViewPort.h,
6549	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6550	break;
6551	default: /* Shut up MSC. */ break;
6552	}
6553	}
6554
6555	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6556	if (pContext->pShaderContext)
6557	{
6558	uint32_t rtHeight = 0;
6559
6560	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6561	{
6562	PVMSVGA3DSURFACE pRenderTarget;
6563	rc = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pRenderTarget);
6564	AssertRCReturn(rc, rc);
6565
6566	rtHeight = pRenderTarget->paMipmapLevels[0].mipmapSize.height;
6567	}
6568
6569	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6570	}
6571
6572	/* Try to figure out if instancing is used.
6573	* Support simple instancing case with one set of indexed data and one set per-instance data.
6574	*/
6575	uint32_t cInstances = 0;
6576	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6577	{
6578	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6579	{
6580	if (cInstances == 0)
6581	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6582	else
6583	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6584	}
6585	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6586	{
6587	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6588	}
6589	}
6590
6591	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6592	iCurrentVertex = 0;
6593	while (iCurrentVertex < numVertexDecls)
6594	{
6595	uint32_t sidVertex = SVGA_ID_INVALID;
6596	uint32_t iVertex;
6597
6598	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6599	{
6600	if ( sidVertex != SVGA_ID_INVALID
6601	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6602	)
6603	break;
6604	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6605	}
6606
6607	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThisCC, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6608	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6609	AssertRCReturn(rc, rc);
6610
6611	iCurrentVertex = iVertex;
6612	}
6613
6614	/* Now draw the primitives. */
6615	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6616	{
6617	GLenum modeDraw;
6618	unsigned const sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6619	PVMSVGA3DSURFACE pIndexSurface = NULL;
6620	unsigned cVertices;
6621
6622	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6623	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6624	if (RT_FAILURE(rc))
6625	{
6626	AssertRC(rc);
6627	goto internal_error;
6628	}
6629
6630	if (sidIndex != SVGA3D_INVALID_ID)
6631	{
6632	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6633
6634	rc = vmsvga3dSurfaceFromSid(pState, sidIndex, &pIndexSurface);
6635	if (RT_FAILURE(rc))
6636	{
6637	AssertRC(rc);
6638	goto internal_error;
6639	}
6640
6641	Log(("vmsvga3dDrawPrimitives: index surface sid=%u\n", sidIndex));
6642
6643	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6644	{
6645	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->paMipmapLevels[0].cbSurface));
6646	pContext = &pState->SharedCtx;
6647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6648
6649	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6650	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6651	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6652
6653	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6655
6656	Assert(pIndexSurface->fDirty);
6657
6658	/** @todo rethink usage dynamic/static */
6659	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->paMipmapLevels[0].cbSurface, pIndexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6660	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6661
6662	pIndexSurface->paMipmapLevels[0].fDirty = false;
6663	pIndexSurface->fDirty = false;
6664
6665	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6666
6667	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6668	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6669
6670	pContext = pState->papContexts[cid];
6671	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6672	}
6673	Assert(pIndexSurface->fDirty == false);
6674
6675	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6676	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6677	}
6678
6679	if (!pIndexSurface)
6680	{
6681	/* Render without an index buffer */
6682	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
6683	if (cInstances == 0)
6684	{
6685	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6686	}
6687	else
6688	{
6689	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6690	}
6691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6692	}
6693	else
6694	{
6695	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6696
6697	GLenum indexType;
6698	switch (pRange[iPrimitive].indexWidth)
6699	{
6700	case 1: indexType = GL_UNSIGNED_BYTE; break;
6701	case 2: indexType = GL_UNSIGNED_SHORT; break;
6702	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
6703	RT_FALL_THROUGH();
6704	case 4: indexType = GL_UNSIGNED_INT; break;
6705	}
6706
6707	Log(("DrawIndexedPrimitive %d cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pVertexDecl[0].rangeHint.first, pVertexDecl[0].rangeHint.last, pRange[iPrimitive].indexArray.offset, pRange[iPrimitive].primitiveCount, pRange[iPrimitive].indexWidth, pRange[iPrimitive].indexBias, cInstances));
6708	if (cInstances == 0)
6709	{
6710	/* Render with an index buffer */
6711	if (pRange[iPrimitive].indexBias == 0)
6712	glDrawElements(modeDraw,
6713	cVertices,
6714	indexType,
6715	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6716	else
6717	pState->ext.glDrawElementsBaseVertex(modeDraw,
6718	cVertices,
6719	indexType,
6720	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6721	pRange[iPrimitive].indexBias); /* basevertex */
6722	}
6723	else
6724	{
6725	/* Render with an index buffer */
6726	if (pRange[iPrimitive].indexBias == 0)
6727	pState->ext.glDrawElementsInstanced(modeDraw,
6728	cVertices,
6729	indexType,
6730	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6731	cInstances);
6732	else
6733	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6734	cVertices,
6735	indexType,
6736	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6737	cInstances,
6738	pRange[iPrimitive].indexBias); /* basevertex */
6739	}
6740	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6741
6742	/* Unbind the index buffer after usage. */
6743	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6744	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6745	}
6746	}
6747
6748	internal_error:
6749
6750	/* Deactivate the vertex declarations. */
6751	iCurrentVertex = 0;
6752	while (iCurrentVertex < numVertexDecls)
6753	{
6754	uint32_t sidVertex = SVGA_ID_INVALID;
6755	uint32_t iVertex;
6756
6757	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6758	{
6759	if ( sidVertex != SVGA_ID_INVALID
6760	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6761	)
6762	break;
6763	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6764	}
6765
6766	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThisCC, pContext, iCurrentVertex,
6767	iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6768	AssertRCReturn(rc, rc);
6769
6770	iCurrentVertex = iVertex;
6771	}
6772
6773	#ifdef DEBUG
6774	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6775	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6776	{
6777	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6778	{
6779	PVMSVGA3DSURFACE pTexture;
6780	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6781	AssertContinue(RT_SUCCESS(rc2));
6782
6783	GLint activeTextureUnit = 0;
6784	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6785	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6786
6787	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6788	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6789
6790	GLint activeTexture = 0;
6791	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6792	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6793
6794	pState->ext.glActiveTexture(activeTextureUnit);
6795	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6796
6797	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6798	("%d vs %d unit %d (active unit %d) sid=%u\n", pTexture->oglId.texture, activeTexture, i,
6799	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6800	}
6801	}
6802	#endif
6803
6804	#if 0
6805	/* Dump render target to a bitmap. */
6806	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6807	{
6808	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6809	PVMSVGA3DSURFACE pSurface;
6810	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6811	if (RT_SUCCESS(rc2))
6812	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
6813	# if 0
6814	/* Stage 0 texture. */
6815	if (pContext->aSidActiveTextures[0] != SVGA3D_INVALID_ID)
6816	{
6817	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->aSidActiveTextures[0]);
6818	rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[0], &pSurface);
6819	if (RT_SUCCESS(rc2))
6820	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post-tx");
6821	}
6822	# endif
6823	}
6824	#endif
6825
6826	return rc;
6827	}
6828
6829
6830	int vmsvga3dShaderDefine(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6831	{
6832	PVMSVGA3DSHADER pShader;
6833	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6834	AssertReturn(pState, VERR_NO_MEMORY);
6835
6836	Log(("vmsvga3dShaderDefine cid=%u shid=%d type=%s cbData=0x%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6837
6838	PVMSVGA3DCONTEXT pContext;
6839	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6840	AssertRCReturn(rc, rc);
6841
6842	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6843
6844	rc = vmsvga3dShaderParse(cbData, pShaderData);
6845	if (RT_FAILURE(rc))
6846	{
6847	AssertRC(rc);
6848	vmsvga3dShaderLogRel("Failed to parse", type, cbData, pShaderData);
6849	return rc;
6850	}
6851
6852	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6853
6854	if (type == SVGA3D_SHADERTYPE_VS)
6855	{
6856	if (shid >= pContext->cVertexShaders)
6857	{
6858	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6859	AssertReturn(pvNew, VERR_NO_MEMORY);
6860	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6861	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6862	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6863	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6864	pContext->cVertexShaders = shid + 1;
6865	}
6866	/* If one already exists with this id, then destroy it now. */
6867	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6868	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paVertexShader[shid].type);
6869
6870	pShader = &pContext->paVertexShader[shid];
6871	}
6872	else
6873	{
6874	Assert(type == SVGA3D_SHADERTYPE_PS);
6875	if (shid >= pContext->cPixelShaders)
6876	{
6877	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6878	AssertReturn(pvNew, VERR_NO_MEMORY);
6879	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6880	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6881	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6882	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6883	pContext->cPixelShaders = shid + 1;
6884	}
6885	/* If one already exists with this id, then destroy it now. */
6886	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6887	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paPixelShader[shid].type);
6888
6889	pShader = &pContext->paPixelShader[shid];
6890	}
6891
6892	memset(pShader, 0, sizeof(*pShader));
6893	pShader->id = shid;
6894	pShader->cid = cid;
6895	pShader->type = type;
6896	pShader->cbData = cbData;
6897	pShader->pShaderProgram = RTMemAllocZ(cbData);
6898	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6899	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6900
6901	#ifdef DUMP_SHADER_DISASSEMBLY
6902	LPD3DXBUFFER pDisassembly;
6903	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6904	if (hr == D3D_OK)
6905	{
6906	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6907	pDisassembly->Release();
6908	}
6909	#endif
6910
6911	switch (type)
6912	{
6913	case SVGA3D_SHADERTYPE_VS:
6914	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pVertexShader);
6915	AssertRC(rc);
6916	break;
6917
6918	case SVGA3D_SHADERTYPE_PS:
6919	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pPixelShader);
6920	AssertRC(rc);
6921	break;
6922
6923	default:
6924	AssertFailedReturn(VERR_INVALID_PARAMETER);
6925	}
6926	if (rc != VINF_SUCCESS)
6927	{
6928	vmsvga3dShaderLogRel("Failed to create", type, cbData, pShaderData);
6929
6930	RTMemFree(pShader->pShaderProgram);
6931	memset(pShader, 0, sizeof(*pShader));
6932	pShader->id = SVGA3D_INVALID_ID;
6933	}
6934
6935	return rc;
6936	}
6937
6938	int vmsvga3dShaderDestroy(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6939	{
6940	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6941	AssertReturn(pState, VERR_NO_MEMORY);
6942	PVMSVGA3DSHADER pShader = NULL;
6943
6944	Log(("vmsvga3dShaderDestroy cid=%u shid=%d type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6945
6946	PVMSVGA3DCONTEXT pContext;
6947	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6948	AssertRCReturn(rc, rc);
6949
6950	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6951
6952	if (type == SVGA3D_SHADERTYPE_VS)
6953	{
6954	if ( shid < pContext->cVertexShaders
6955	&& pContext->paVertexShader[shid].id == shid)
6956	{
6957	pShader = &pContext->paVertexShader[shid];
6958	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6959	AssertRC(rc);
6960	}
6961	}
6962	else
6963	{
6964	Assert(type == SVGA3D_SHADERTYPE_PS);
6965	if ( shid < pContext->cPixelShaders
6966	&& pContext->paPixelShader[shid].id == shid)
6967	{
6968	pShader = &pContext->paPixelShader[shid];
6969	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6970	AssertRC(rc);
6971	}
6972	}
6973
6974	if (pShader)
6975	{
6976	if (pShader->pShaderProgram)
6977	RTMemFree(pShader->pShaderProgram);
6978	memset(pShader, 0, sizeof(*pShader));
6979	pShader->id = SVGA3D_INVALID_ID;
6980	}
6981	else
6982	AssertFailedReturn(VERR_INVALID_PARAMETER);
6983
6984	return VINF_SUCCESS;
6985	}
6986
6987	int vmsvga3dShaderSet(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6988	{
6989	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6990	AssertReturn(pState, VERR_NO_MEMORY);
6991	int rc;
6992
6993	Log(("vmsvga3dShaderSet cid=%u type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6994
6995	if (!pContext)
6996	{
6997	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6998	AssertRCReturn(rc, rc);
6999	}
7000
7001	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7002
7003	if (type == SVGA3D_SHADERTYPE_VS)
7004	{
7005	/* Save for vm state save/restore. */
7006	pContext->state.shidVertex = shid;
7007	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
7008
7009	if ( shid < pContext->cVertexShaders
7010	&& pContext->paVertexShader[shid].id == shid)
7011	{
7012	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
7013	Assert(type == pShader->type);
7014
7015	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7016	AssertRCReturn(rc, rc);
7017	}
7018	else
7019	if (shid == SVGA_ID_INVALID)
7020	{
7021	/* Unselect shader. */
7022	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
7023	AssertRCReturn(rc, rc);
7024	}
7025	else
7026	AssertFailedReturn(VERR_INVALID_PARAMETER);
7027	}
7028	else
7029	{
7030	/* Save for vm state save/restore. */
7031	pContext->state.shidPixel = shid;
7032	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
7033
7034	Assert(type == SVGA3D_SHADERTYPE_PS);
7035	if ( shid < pContext->cPixelShaders
7036	&& pContext->paPixelShader[shid].id == shid)
7037	{
7038	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
7039	Assert(type == pShader->type);
7040
7041	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7042	AssertRCReturn(rc, rc);
7043	}
7044	else
7045	if (shid == SVGA_ID_INVALID)
7046	{
7047	/* Unselect shader. */
7048	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
7049	AssertRCReturn(rc, rc);
7050	}
7051	else
7052	AssertFailedReturn(VERR_INVALID_PARAMETER);
7053	}
7054
7055	return VINF_SUCCESS;
7056	}
7057
7058	int vmsvga3dShaderSetConst(PVGASTATECC pThisCC, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
7059	{
7060	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7061	AssertReturn(pState, VERR_NO_MEMORY);
7062
7063	Log(("vmsvga3dShaderSetConst cid=%u reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
7064
7065	PVMSVGA3DCONTEXT pContext;
7066	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7067	AssertRCReturn(rc, rc);
7068
7069	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7070
7071	for (uint32_t i = 0; i < cRegisters; i++)
7072	{
7073	#ifdef LOG_ENABLED
7074	switch (ctype)
7075	{
7076	case SVGA3D_CONST_TYPE_FLOAT:
7077	{
7078	float pValuesF = (float )pValues;
7079	Log(("ConstantF %d: value=" FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR "\n",
7080	reg + i, FLOAT_FMT_ARGS(pValuesF[i4 + 0]), FLOAT_FMT_ARGS(pValuesF[i4 + 1]), FLOAT_FMT_ARGS(pValuesF[i4 + 2]), FLOAT_FMT_ARGS(pValuesF[i4 + 3])));
7081	break;
7082	}
7083
7084	case SVGA3D_CONST_TYPE_INT:
7085	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7086	break;
7087
7088	case SVGA3D_CONST_TYPE_BOOL:
7089	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7090	break;
7091	}
7092	#endif
7093	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
7094	}
7095
7096	switch (type)
7097	{
7098	case SVGA3D_SHADERTYPE_VS:
7099	switch (ctype)
7100	{
7101	case SVGA3D_CONST_TYPE_FLOAT:
7102	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7103	break;
7104
7105	case SVGA3D_CONST_TYPE_INT:
7106	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7107	break;
7108
7109	case SVGA3D_CONST_TYPE_BOOL:
7110	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7111	break;
7112
7113	default:
7114	AssertFailedReturn(VERR_INVALID_PARAMETER);
7115	}
7116	AssertRCReturn(rc, rc);
7117	break;
7118
7119	case SVGA3D_SHADERTYPE_PS:
7120	switch (ctype)
7121	{
7122	case SVGA3D_CONST_TYPE_FLOAT:
7123	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7124	break;
7125
7126	case SVGA3D_CONST_TYPE_INT:
7127	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7128	break;
7129
7130	case SVGA3D_CONST_TYPE_BOOL:
7131	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7132	break;
7133
7134	default:
7135	AssertFailedReturn(VERR_INVALID_PARAMETER);
7136	}
7137	AssertRCReturn(rc, rc);
7138	break;
7139
7140	default:
7141	AssertFailedReturn(VERR_INVALID_PARAMETER);
7142	}
7143
7144	return VINF_SUCCESS;
7145	}
7146
7147	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7148	{
7149	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
7150	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7151
7152	GLuint idQuery = 0;
7153	pState->ext.glGenQueries(1, &idQuery);
7154	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7155	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
7156	pContext->occlusion.idQuery = idQuery;
7157	return VINF_SUCCESS;
7158	}
7159
7160	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7161	{
7162	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
7163	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7164
7165	if (pContext->occlusion.idQuery)
7166	{
7167	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
7168	}
7169	return VINF_SUCCESS;
7170	}
7171
7172	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7173	{
7174	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
7175	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7176
7177	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
7178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7179	return VINF_SUCCESS;
7180	}
7181
7182	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7183	{
7184	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
7185	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7186
7187	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
7188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7189	return VINF_SUCCESS;
7190	}
7191
7192	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
7193	{
7194	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
7195	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7196
7197	GLuint pixels = 0;
7198	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
7199	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7200
7201	*pu32Pixels = (uint32_t)pixels;
7202	return VINF_SUCCESS;
7203	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 83579

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