DevVGA-SVGA3d-ogl.cpp@ 82303

Last change on this file since 82303 was 82165, checked in by vboxsync, 5 years ago
Devices/Graphics: OpenGL backend: fixes for compressed textures.
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File size: 271.4 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 82165 2019-11-25 11:18:42Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2019 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35	#include <VBox/AssertGuest.h>
36
37	#include <iprt/assert.h>
38	#include <iprt/semaphore.h>
39	#include <iprt/uuid.h>
40	#include <iprt/mem.h>
41
42	#include <VBoxVideo.h> /* required by DevVGA.h */
43
44	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
45	#include "DevVGA.h"
46
47	#include "DevVGA-SVGA.h"
48	#include "DevVGA-SVGA3d.h"
49	#include "DevVGA-SVGA3d-internal.h"
50
51	#ifdef DUMP_SHADER_DISASSEMBLY
52	# include <d3dx9shader.h>
53	#endif
54
55	#include <stdlib.h>
56	#include <math.h>
57	#include <float.h> /* FLT_MIN */
58
59
60	/*********************************************************************************************************************************
61	* Defined Constants And Macros *
62	*********************************************************************************************************************************/
63	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
64	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
65	#endif
66
67	#ifdef VMSVGA3D_DYNAMIC_LOAD
68	# define OGLGETPROCADDRESS glLdrGetProcAddress
69	#else
70	#ifdef RT_OS_WINDOWS
71	# define OGLGETPROCADDRESS MyWinGetProcAddress
72	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
73	{
74	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
75	PROC p = wglGetProcAddress(pszSymbol);
76	if (RT_VALID_PTR(p))
77	return p;
78	return 0;
79	}
80	#elif defined(RT_OS_DARWIN)
81	# include <dlfcn.h>
82	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
83	/** Resolves an OpenGL symbol. */
84	static void MyNSGLGetProcAddress(const char pszSymbol)
85	{
86	/* Another copy in shaderapi.c. */
87	static void *s_pvImage = NULL;
88	if (s_pvImage == NULL)
89	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
90	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
91	}
92
93	#else
94	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
95	#endif
96	#endif
97
98	/* Invert y-coordinate for OpenGL's bottom left origin. */
99	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->paMipmapLevels[0].mipmapSize.height - (y_coordinate))
100	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
101
102	/**
103	* Macro for doing something and then checking for errors during initialization.
104	* Uses AssertLogRelMsg.
105	*/
106	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
107	do \
108	{ \
109	a_Expr; \
110	GLenum iGlError = glGetError(); \
111	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
112	} while (0)
113
114	/**
115	* Macro for doing something and then checking for errors during initialization,
116	* doing the same in the other context when enabled.
117	*
118	* This will try both profiles in dual profile builds. Caller must be in the
119	* default context.
120	*
121	* Uses AssertLogRelMsg to indicate trouble.
122	*/
123	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
124	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
125	do \
126	{ \
127	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
128	a_Expr; \
129	GLenum iGlError = glGetError(); \
130	if (iGlError != GL_NO_ERROR) \
131	{ \
132	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
133	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
134	a_Expr; \
135	GLenum iGlError2 = glGetError(); \
136	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
137	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
138	} \
139	} while (0)
140	#else
141	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
142	#endif
143
144
145	/*********************************************************************************************************************************
146	* Global Variables *
147	*********************************************************************************************************************************/
148	/* Define the default light parameters as specified by MSDN. */
149	/** @todo move out; fetched from Wine */
150	const SVGA3dLightData vmsvga3d_default_light =
151	{
152	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
153	false, /* inWorldSpace */
154	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
156	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
157	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
158	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
159	0.0f, /* range */
160	0.0f, /* falloff */
161	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
162	0.0f, /* theta */
163	0.0f /* phi */
164	};
165
166
167	/*********************************************************************************************************************************
168	* Internal Functions *
169	*********************************************************************************************************************************/
170	static int vmsvga3dContextDestroyOgl(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	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
741	if ( pState->rsGLVersion >= 3.0f
742	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
743	{
744	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
745	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
746	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
747	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
748	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
749	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
750	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
751	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
752	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
753	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
754	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
755	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
756	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
757	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
758	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
759	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
760	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
761	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
762	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
763	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
764	}
765
766	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
767	if (pState->rsGLVersion >= 3.1f)
768	{
769	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
770	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
771	}
772	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
773	{
774	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
775	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
776	}
777	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
778	{
779	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
780	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
781	}
782
783	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
784	if ( pState->rsGLVersion >= 3.2f
785	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
786	{
787	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
788	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
789	}
790
791	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
792	if ( pState->rsGLVersion >= 3.2f
793	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
794	{
795	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
796	}
797
798	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
799	if (pState->rsGLVersion >= 3.3f)
800	{
801	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
802	}
803	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
804	{
805	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
806	}
807
808	#undef GLGETPROCOPT_
809	#undef GLGETPROC_
810
811	return VINF_SUCCESS;
812	}
813
814
815	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
816	int vmsvga3dPowerOn(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
817	{
818	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
819	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
820	PVMSVGA3DCONTEXT pContext;
821	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
822	PVMSVGA3DCONTEXT pOtherCtx;
823	#endif
824	int rc;
825	RT_NOREF(pDevIns, pThis);
826
827	if (pState->rsGLVersion != 0.0)
828	return VINF_SUCCESS; /* already initialized (load state) */
829
830	/*
831	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
832	*/
833	rc = vmsvga3dContextDefineOgl(pThisCC, 1, VMSVGA3D_DEF_CTX_F_INIT);
834	AssertRCReturn(rc, rc);
835
836	pContext = pState->papContexts[1];
837	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
838
839	#ifdef VMSVGA3D_DYNAMIC_LOAD
840	/* Context is set and it is possible now to resolve extension functions. */
841	rc = glLdrGetExtFunctions(pDevIns);
842	if (RT_FAILURE(rc))
843	{
844	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
845	return rc;
846	}
847	#endif
848
849	LogRel(("VMSVGA3d: OpenGL version: %s\n"
850	"VMSVGA3d: OpenGL Vendor: %s\n"
851	"VMSVGA3d: OpenGL Renderer: %s\n"
852	"VMSVGA3d: OpenGL shader language version: %s\n",
853	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
854	glGetString(GL_SHADING_LANGUAGE_VERSION)));
855
856	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
857	AssertRCReturn(rc, rc);
858	vmsvga3dLogRelExtensions("", pState->pszExtensions);
859
860	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
861
862
863	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
864	/*
865	* Get the extension list for the alternative profile so we can better
866	* figure out the shader model and stuff.
867	*/
868	rc = vmsvga3dContextDefineOgl(pThisCC, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
869	AssertLogRelRCReturn(rc, rc);
870	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
871
872	pOtherCtx = pState->papContexts[2];
873	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
874
875	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
876	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
877	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
878	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
879	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
880	glGetString(GL_SHADING_LANGUAGE_VERSION)));
881
882	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
883	AssertRCReturn(rc, rc);
884	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
885
886	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
887
888	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
889	#else
890	pState->pszOtherExtensions = (char *)"";
891	pState->rsOtherGLVersion = pState->rsGLVersion;
892	#endif
893
894	/*
895	* Resolve GL function pointers and store them in pState->ext.
896	*/
897	rc = vmsvga3dLoadGLFunctions(pState);
898	if (RT_FAILURE(rc))
899	{
900	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
901	return rc;
902	}
903
904	/*
905	* Initialize the capabilities with sensible defaults.
906	*/
907	pState->caps.maxActiveLights = 1;
908	pState->caps.maxTextures = 1;
909	pState->caps.maxClipDistances = 4;
910	pState->caps.maxColorAttachments = 1;
911	pState->caps.maxRectangleTextureSize = 2048;
912	pState->caps.maxTextureAnisotropy = 1;
913	pState->caps.maxVertexShaderInstructions = 1024;
914	pState->caps.maxFragmentShaderInstructions = 1024;
915	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
916	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
917	pState->caps.flPointSize[0] = 1;
918	pState->caps.flPointSize[1] = 1;
919
920	/*
921	* Query capabilities
922	*/
923	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
924	pState->caps.fTextureFilterAnisotropicSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_filter_anisotropic ");
925
926	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
927	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
928	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
929	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
930	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
931	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
932	#else
933	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
934	#endif
935	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
936	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
937	if (pState->caps.fTextureFilterAnisotropicSupported)
938	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
939	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
940
941	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
942	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
943	&pState->caps.maxFragmentShaderTemps));
944	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
945	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
946	&pState->caps.maxFragmentShaderInstructions));
947	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
948	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
949	&pState->caps.maxVertexShaderTemps));
950	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
951	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
952	&pState->caps.maxVertexShaderInstructions));
953
954	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
955	* ARB Assembly Language
956	* These are done through testing the presence of extensions. You should test them in this order:
957	* GL_NV_gpu_program4: SM 4.0 or better.
958	* GL_NV_vertex_program3: SM 3.0 or better.
959	* GL_ARB_fragment_program: SM 2.0 or better.
960	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
961	*
962	*/
963	/** @todo distinguish between vertex and pixel shaders??? */
964	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
965	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
966	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
967	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
968	#else
969	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
970	#endif
971	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
972	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
973	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
974	{
975	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
976	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
977	}
978	else
979	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
980	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
981	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
982	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
983	)
984	{
985	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
986	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
987	}
988	else
989	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
990	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
991	{
992	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
993	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
994	}
995	else
996	{
997	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
998	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
999	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1000	}
1001
1002	/* Now check the shading language version, in case it indicates a higher supported version. */
1003	if (v >= 3.30f)
1004	{
1005	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
1006	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
1007	}
1008	else
1009	if (v >= 1.20f)
1010	{
1011	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1012	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1013	}
1014
1015	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1016	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1017	{
1018	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1019	}
1020
1021	/*
1022	* Tweak capabilities.
1023	*/
1024	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1025	if ( pState->caps.maxVertexShaderTemps < 32
1026	&& vmsvga3dIsVendorIntel())
1027	pState->caps.maxVertexShaderTemps = 32;
1028
1029	#if 0
1030	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1031	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1032	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1033	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1034	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1035	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1036	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1037	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1038	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1039	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1040	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1041	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1042	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1043	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1044	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1045	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1046	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1047	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1048	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1049	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1050	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1051	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1052	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1053	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1054	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1055	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1056	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1057	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1058	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1059	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1060	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1061	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1062	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1063	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1064	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1065	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1066	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1067	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1068	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1069	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1070	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1071	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1072	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1073	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1074	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1075	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1076	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1077	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1078	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1079	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1080	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1081	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1082	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1083	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1084	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1085	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1086	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1087	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1088	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1089	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1090	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1091	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1092	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1093	#endif
1094
1095	LogRel(("VMSVGA3d: Capabilities:\n"));
1096	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1097	pState->caps.maxActiveLights, pState->caps.maxTextures));
1098	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1099	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1100	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1101	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1102	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1103	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1104	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1105	pState->caps.maxFragmentShaderTemps,
1106	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1107	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1108	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d\n",
1109	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion));
1110	LogRel(("VMSVGA3d: fS3TCSupported=%-2d fTextureFilterAnisotropicSupported=%d\n",
1111	pState->caps.fS3TCSupported, pState->caps.fTextureFilterAnisotropicSupported));
1112
1113
1114	/* Initialize the shader library. */
1115	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1116	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1117	rc = ShaderInitLib(&pState->ShaderIf);
1118	AssertRC(rc);
1119
1120	/* Cleanup */
1121	rc = vmsvga3dContextDestroy(pThisCC, 1);
1122	AssertRC(rc);
1123	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1124	rc = vmsvga3dContextDestroy(pThisCC, 2);
1125	AssertRC(rc);
1126	#endif
1127
1128	if ( pState->rsGLVersion < 3.0
1129	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1130	{
1131	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1132	return VERR_NOT_IMPLEMENTED;
1133	}
1134
1135	return VINF_SUCCESS;
1136	}
1137
1138	int vmsvga3dReset(PVGASTATECC pThisCC)
1139	{
1140	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1141	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
1142
1143	/* Destroy all leftover surfaces. */
1144	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1145	{
1146	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1147	vmsvga3dSurfaceDestroy(pThisCC, pState->papSurfaces[i]->id);
1148	}
1149
1150	/* Destroy all leftover contexts. */
1151	for (uint32_t i = 0; i < pState->cContexts; i++)
1152	{
1153	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1154	vmsvga3dContextDestroy(pThisCC, pState->papContexts[i]->id);
1155	}
1156
1157	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1158	vmsvga3dContextDestroyOgl(pThisCC, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1159
1160	return VINF_SUCCESS;
1161	}
1162
1163	int vmsvga3dTerminate(PVGASTATECC pThisCC)
1164	{
1165	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1166	AssertReturn(pState, VERR_WRONG_ORDER);
1167	int rc;
1168
1169	rc = vmsvga3dReset(pThisCC);
1170	AssertRCReturn(rc, rc);
1171
1172	/* Terminate the shader library. */
1173	rc = ShaderDestroyLib();
1174	AssertRC(rc);
1175
1176	#ifdef RT_OS_WINDOWS
1177	/* Terminate the window creation thread. */
1178	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1179	AssertRCReturn(rc, rc);
1180
1181	RTSemEventDestroy(pState->WndRequestSem);
1182	#elif defined(RT_OS_DARWIN)
1183
1184	#elif defined(RT_OS_LINUX)
1185	/* signal to the thread that it is supposed to exit */
1186	pState->bTerminate = true;
1187	/* wait for it to terminate */
1188	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1189	AssertRC(rc);
1190	XCloseDisplay(pState->display);
1191	#endif
1192
1193	RTStrFree(pState->pszExtensions);
1194	pState->pszExtensions = NULL;
1195	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1196	RTStrFree(pState->pszOtherExtensions);
1197	#endif
1198	pState->pszOtherExtensions = NULL;
1199
1200	return VINF_SUCCESS;
1201	}
1202
1203
1204	void vmsvga3dUpdateHostScreenViewport(PVGASTATECC pThisCC, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1205	{
1206	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1207	* redraw it. */
1208
1209	#ifdef RT_OS_DARWIN
1210	RT_NOREF(pOldViewport);
1211	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1212	if ( pState
1213	&& idScreen == 0
1214	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1215	{
1216	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1217	}
1218	#else
1219	RT_NOREF(pThisCC, idScreen, pOldViewport);
1220	#endif
1221	}
1222
1223
1224	/**
1225	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1226	* given surface format capability.
1227	*
1228	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1229	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1230	*
1231	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1232	* of implicit guest expectations:
1233	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1234	*/
1235	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1236	{
1237	uint32_t result = 0;
1238
1239	/** @todo missing:
1240	*
1241	* SVGA3DFORMAT_OP_PIXELSIZE
1242	*/
1243
1244	switch (idx3dCaps)
1245	{
1246	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1247	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1248	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1249	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1250	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1251	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1252	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1253	break;
1254
1255	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1256	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1257	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1258	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1259	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1260	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1261	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1262	break;
1263	}
1264
1265	/** @todo check hardware caps! */
1266	switch (idx3dCaps)
1267	{
1268	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1269	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1270	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1271	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1272	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1273	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1274	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1275	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1276	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1277	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1278	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1279	result \|= SVGA3DFORMAT_OP_TEXTURE
1280	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1281	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1282	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1283	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1284	\| SVGA3DFORMAT_OP_CUBETEXTURE
1285	\| SVGA3DFORMAT_OP_SRGBREAD
1286	\| SVGA3DFORMAT_OP_SRGBWRITE;
1287	break;
1288
1289	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1290	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1291	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1292	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1293	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1294	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1295	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1296	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1297	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1298	break;
1299
1300	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1301	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1302	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1303	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1304	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1305	result \|= SVGA3DFORMAT_OP_TEXTURE
1306	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1307	\| SVGA3DFORMAT_OP_CUBETEXTURE
1308	\| SVGA3DFORMAT_OP_SRGBREAD;
1309	break;
1310
1311	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1312	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1313	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1314	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1315	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1316	break;
1317
1318	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1319	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1320	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1321	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1322	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1323	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1324	result \|= SVGA3DFORMAT_OP_TEXTURE
1325	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1326	\| SVGA3DFORMAT_OP_CUBETEXTURE
1327	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1328	break;
1329
1330	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1331	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1332	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1333	result \|= SVGA3DFORMAT_OP_TEXTURE
1334	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1335	\| SVGA3DFORMAT_OP_CUBETEXTURE
1336	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1337	break;
1338
1339	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1340	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1341	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1342	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1343	\| SVGA3DFORMAT_OP_TEXTURE;
1344	break;
1345
1346	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1347	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1348	break;
1349	}
1350	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1351
1352	return result;
1353	}
1354
1355	#if 0 /* unused */
1356	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1357	{
1358	RT_NOREF(pState3D, idx3dCaps);
1359
1360	/** @todo test this somehow */
1361	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1362
1363	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1364	return result;
1365	}
1366	#endif
1367
1368
1369	int vmsvga3dQueryCaps(PVGASTATECC pThisCC, uint32_t idx3dCaps, uint32_t *pu32Val)
1370	{
1371	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1372	AssertReturn(pState, VERR_NO_MEMORY);
1373	int rc = VINF_SUCCESS;
1374
1375	*pu32Val = 0;
1376
1377	/*
1378	* The capabilities access by current (2015-03-01) linux sources (gallium,
1379	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1380	* aren't access.
1381	*/
1382
1383	switch (idx3dCaps)
1384	{
1385	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1386	case SVGA3D_DEVCAP_3D:
1387	pu32Val = 1; / boolean? */
1388	break;
1389
1390	case SVGA3D_DEVCAP_MAX_LIGHTS:
1391	*pu32Val = pState->caps.maxActiveLights;
1392	break;
1393
1394	case SVGA3D_DEVCAP_MAX_TEXTURES:
1395	*pu32Val = pState->caps.maxTextures;
1396	break;
1397
1398	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1399	*pu32Val = pState->caps.maxClipDistances;
1400	break;
1401
1402	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1403	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1404	*pu32Val = pState->caps.vertexShaderVersion;
1405	break;
1406
1407	case SVGA3D_DEVCAP_VERTEX_SHADER:
1408	/* boolean? */
1409	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1410	break;
1411
1412	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1413	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1414	*pu32Val = pState->caps.fragmentShaderVersion;
1415	break;
1416
1417	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1418	/* boolean? */
1419	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1420	break;
1421
1422	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1423	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1424	/* Must be obsolete by now; surface format caps specify the same thing. */
1425	rc = VERR_INVALID_PARAMETER;
1426	break;
1427
1428	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1429	break;
1430
1431	/*
1432	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1433	* return TRUE. Even on physical hardware that does not support
1434	* these formats natively, the SVGA3D device will provide an emulation
1435	* which should be invisible to the guest OS.
1436	*/
1437	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1438	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1439	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1440	*pu32Val = 1;
1441	break;
1442
1443	case SVGA3D_DEVCAP_QUERY_TYPES:
1444	break;
1445
1446	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1447	break;
1448
1449	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1450	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1451	AssertCompile(sizeof(uint32_t) == sizeof(float));
1452	(float )pu32Val = pState->caps.flPointSize[1];
1453	break;
1454
1455	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1456	/** @todo ?? */
1457	rc = VERR_INVALID_PARAMETER;
1458	break;
1459
1460	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1461	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1462	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1463	*pu32Val = pState->caps.maxRectangleTextureSize;
1464	break;
1465
1466	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1467	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1468	//*pu32Val = pCaps->MaxVolumeExtent;
1469	*pu32Val = 256;
1470	break;
1471
1472	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1473	pu32Val = 32768; / hardcoded in Wine */
1474	break;
1475
1476	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1477	//*pu32Val = pCaps->MaxTextureAspectRatio;
1478	break;
1479
1480	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1481	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1482	*pu32Val = pState->caps.maxTextureAnisotropy;
1483	break;
1484
1485	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1486	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1487	pu32Val = 0xFFFFF; / hardcoded in Wine */
1488	break;
1489
1490	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1491	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1492	*pu32Val = pState->caps.maxVertexShaderInstructions;
1493	break;
1494
1495	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1496	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1497	break;
1498
1499	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1500	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1501	*pu32Val = pState->caps.maxVertexShaderTemps;
1502	break;
1503
1504	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1505	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1506	*pu32Val = pState->caps.maxFragmentShaderTemps;
1507	break;
1508
1509	case SVGA3D_DEVCAP_TEXTURE_OPS:
1510	break;
1511
1512	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1513	break;
1514
1515	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1516	break;
1517
1518	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1519	break;
1520
1521	case SVGA3D_DEVCAP_SUPERSAMPLE:
1522	break;
1523
1524	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1525	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1526	break;
1527
1528	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1529	break;
1530
1531	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1532	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1533	*pu32Val = pState->caps.maxColorAttachments;
1534	break;
1535
1536	/*
1537	* This is the maximum number of SVGA context IDs that the guest
1538	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1539	*/
1540	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1541	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1542	break;
1543
1544	/*
1545	* This is the maximum number of SVGA surface IDs that the guest
1546	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1547	*/
1548	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1549	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1550	break;
1551
1552	#if 0 /* Appeared more recently, not yet implemented. */
1553	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1554	case SVGA3D_DEVCAP_LINE_AA:
1555	break;
1556	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1557	case SVGA3D_DEVCAP_LINE_STIPPLE:
1558	break;
1559	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1560	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1561	break;
1562	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1563	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1564	break;
1565	#endif
1566
1567	/*
1568	* Supported surface formats.
1569	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1570	*/
1571	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1572	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1573	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1574	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1575	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1576	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1577	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1578	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1579	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1580	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1581	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1582	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1583	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1584	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1585	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1586	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1587	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1588	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1589	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1590	break;
1591
1592	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1593	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1594	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1595	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1596	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1597	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1598	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1599	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1600	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1601	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1602	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1603	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1604	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1605	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1606	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1607	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1608	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1609	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1610	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1611	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1612	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1613	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1614	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1615	break;
1616
1617	/* Linux: Not referenced in current sources. */
1618	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1619	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1620	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1621	rc = VERR_INVALID_PARAMETER;
1622	*pu32Val = 0;
1623	break;
1624
1625	default:
1626	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1627	rc = VERR_INVALID_PARAMETER;
1628	break;
1629	}
1630
1631	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1632	return rc;
1633	}
1634
1635	/**
1636	* Convert SVGA format value to its OpenGL equivalent
1637	*
1638	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1639	* help from wined3dformat_from_d3dformat().
1640	*/
1641	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1642	{
1643	#if 0
1644	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1645	#else
1646	#define AssertTestFmt(f) do {} while(0)
1647	#endif
1648	/* Init cbBlockGL for non-emulated formats. */
1649	pSurface->cbBlockGL = pSurface->cbBlock;
1650
1651	switch (format)
1652	{
1653	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1654	pSurface->internalFormatGL = GL_RGB8;
1655	pSurface->formatGL = GL_BGRA;
1656	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1657	break;
1658	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1659	pSurface->internalFormatGL = GL_RGBA8;
1660	pSurface->formatGL = GL_BGRA;
1661	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1662	break;
1663	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1664	pSurface->internalFormatGL = GL_RGB5;
1665	pSurface->formatGL = GL_RGB;
1666	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1667	AssertTestFmt(SVGA3D_R5G6B5);
1668	break;
1669	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1670	pSurface->internalFormatGL = GL_RGB5;
1671	pSurface->formatGL = GL_BGRA;
1672	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1673	AssertTestFmt(SVGA3D_X1R5G5B5);
1674	break;
1675	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1676	pSurface->internalFormatGL = GL_RGB5_A1;
1677	pSurface->formatGL = GL_BGRA;
1678	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1679	AssertTestFmt(SVGA3D_A1R5G5B5);
1680	break;
1681	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1682	pSurface->internalFormatGL = GL_RGBA4;
1683	pSurface->formatGL = GL_BGRA;
1684	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1685	AssertTestFmt(SVGA3D_A4R4G4B4);
1686	break;
1687
1688	case SVGA3D_R8G8B8A8_UNORM:
1689	pSurface->internalFormatGL = GL_RGBA8;
1690	pSurface->formatGL = GL_RGBA;
1691	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1692	break;
1693
1694	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1695	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1696	pSurface->formatGL = GL_DEPTH_COMPONENT;
1697	pSurface->typeGL = GL_UNSIGNED_INT;
1698	break;
1699	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1700	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1701	pSurface->formatGL = GL_DEPTH_COMPONENT;
1702	pSurface->typeGL = GL_UNSIGNED_SHORT;
1703	AssertTestFmt(SVGA3D_Z_D16);
1704	break;
1705	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1706	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1707	pSurface->formatGL = GL_DEPTH_STENCIL;
1708	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1709	break;
1710	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1711	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1712	pSurface->formatGL = GL_DEPTH_STENCIL;
1713	pSurface->typeGL = GL_UNSIGNED_SHORT;
1714	/** @todo Wine sources hints at no hw support for this, so test this one! */
1715	AssertTestFmt(SVGA3D_Z_D15S1);
1716	break;
1717	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1718	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1719	pSurface->formatGL = GL_DEPTH_COMPONENT;
1720	pSurface->typeGL = GL_UNSIGNED_INT;
1721	AssertTestFmt(SVGA3D_Z_D24X8);
1722	break;
1723
1724	/* Advanced D3D9 depth formats. */
1725	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1726	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1727	pSurface->formatGL = GL_DEPTH_COMPONENT;
1728	pSurface->typeGL = GL_HALF_FLOAT;
1729	break;
1730
1731	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1732	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1733	pSurface->formatGL = GL_DEPTH_COMPONENT;
1734	pSurface->typeGL = GL_FLOAT; /* ??? */
1735	break;
1736
1737	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1738	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1739	pSurface->formatGL = GL_DEPTH_STENCIL;
1740	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1741	break;
1742
1743	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1744	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1745	pSurface->formatGL = GL_RGBA; /* not used */
1746	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1747	break;
1748
1749	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1750	/* "DXT2 and DXT3 are the same from an API perspective." */
1751	RT_FALL_THRU();
1752	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1753	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1754	pSurface->formatGL = GL_RGBA; /* not used */
1755	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1756	break;
1757
1758	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1759	/* "DXT4 and DXT5 are the same from an API perspective." */
1760	RT_FALL_THRU();
1761	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1762	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1763	pSurface->formatGL = GL_RGBA; /* not used */
1764	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1765	break;
1766
1767	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1768	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1769	pSurface->formatGL = GL_LUMINANCE;
1770	pSurface->typeGL = GL_UNSIGNED_BYTE;
1771	break;
1772
1773	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1774	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1775	pSurface->formatGL = GL_LUMINANCE;
1776	pSurface->typeGL = GL_UNSIGNED_SHORT;
1777	break;
1778
1779	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1780	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1781	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1782	pSurface->typeGL = GL_UNSIGNED_BYTE;
1783	break;
1784
1785	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1786	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1787	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1788	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1789	break;
1790
1791	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1792	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1793	pSurface->formatGL = GL_ALPHA;
1794	pSurface->typeGL = GL_UNSIGNED_BYTE;
1795	break;
1796
1797	#if 0
1798
1799	/* Bump-map formats */
1800	case SVGA3D_BUMPU8V8:
1801	return D3DFMT_V8U8;
1802	case SVGA3D_BUMPL6V5U5:
1803	return D3DFMT_L6V5U5;
1804	case SVGA3D_BUMPX8L8V8U8:
1805	return D3DFMT_X8L8V8U8;
1806	case SVGA3D_BUMPL8V8U8:
1807	/* No corresponding D3D9 equivalent. */
1808	AssertFailedReturn(D3DFMT_UNKNOWN);
1809	/* signed bump-map formats */
1810	case SVGA3D_V8U8:
1811	return D3DFMT_V8U8;
1812	case SVGA3D_Q8W8V8U8:
1813	return D3DFMT_Q8W8V8U8;
1814	case SVGA3D_CxV8U8:
1815	return D3DFMT_CxV8U8;
1816	/* mixed bump-map formats */
1817	case SVGA3D_X8L8V8U8:
1818	return D3DFMT_X8L8V8U8;
1819	case SVGA3D_A2W10V10U10:
1820	return D3DFMT_A2W10V10U10;
1821	#endif
1822
1823	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1824	pSurface->internalFormatGL = GL_RGBA16F;
1825	pSurface->formatGL = GL_RGBA;
1826	#if 0 /* bird: wine uses half float, sounds correct to me... */
1827	pSurface->typeGL = GL_FLOAT;
1828	#else
1829	pSurface->typeGL = GL_HALF_FLOAT;
1830	AssertTestFmt(SVGA3D_ARGB_S10E5);
1831	#endif
1832	break;
1833
1834	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1835	pSurface->internalFormatGL = GL_RGBA32F;
1836	pSurface->formatGL = GL_RGBA;
1837	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1838	break;
1839
1840	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1841	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1842	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1843	pSurface->formatGL = GL_RGBA;
1844	#else
1845	pSurface->formatGL = GL_BGRA;
1846	#endif
1847	pSurface->typeGL = GL_UNSIGNED_INT;
1848	AssertTestFmt(SVGA3D_A2R10G10B10);
1849	break;
1850
1851
1852	/* Single- and dual-component floating point formats */
1853	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1854	pSurface->internalFormatGL = GL_R16F;
1855	pSurface->formatGL = GL_RED;
1856	#if 0 /* bird: wine uses half float, sounds correct to me... */
1857	pSurface->typeGL = GL_FLOAT;
1858	#else
1859	pSurface->typeGL = GL_HALF_FLOAT;
1860	AssertTestFmt(SVGA3D_R_S10E5);
1861	#endif
1862	break;
1863	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1864	pSurface->internalFormatGL = GL_R32F;
1865	pSurface->formatGL = GL_RED;
1866	pSurface->typeGL = GL_FLOAT;
1867	break;
1868	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1869	pSurface->internalFormatGL = GL_RG16F;
1870	pSurface->formatGL = GL_RG;
1871	#if 0 /* bird: wine uses half float, sounds correct to me... */
1872	pSurface->typeGL = GL_FLOAT;
1873	#else
1874	pSurface->typeGL = GL_HALF_FLOAT;
1875	AssertTestFmt(SVGA3D_RG_S10E5);
1876	#endif
1877	break;
1878	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1879	pSurface->internalFormatGL = GL_RG32F;
1880	pSurface->formatGL = GL_RG;
1881	pSurface->typeGL = GL_FLOAT;
1882	break;
1883
1884	/*
1885	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1886	* the most efficient format to use when creating new surfaces
1887	* expressly for index or vertex data.
1888	*/
1889	case SVGA3D_BUFFER:
1890	pSurface->internalFormatGL = -1;
1891	pSurface->formatGL = -1;
1892	pSurface->typeGL = -1;
1893	break;
1894
1895	#if 0
1896	return D3DFMT_UNKNOWN;
1897
1898	case SVGA3D_V16U16:
1899	return D3DFMT_V16U16;
1900	#endif
1901
1902	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1903	pSurface->internalFormatGL = GL_RG16;
1904	pSurface->formatGL = GL_RG;
1905	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1906	pSurface->typeGL = GL_UNSIGNED_INT;
1907	#else
1908	pSurface->typeGL = GL_UNSIGNED_SHORT;
1909	AssertTestFmt(SVGA3D_G16R16);
1910	#endif
1911	break;
1912
1913	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1914	pSurface->internalFormatGL = GL_RGBA16;
1915	pSurface->formatGL = GL_RGBA;
1916	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1917	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1918	#else
1919	pSurface->typeGL = GL_UNSIGNED_SHORT;
1920	AssertTestFmt(SVGA3D_A16B16G16R16);
1921	#endif
1922	break;
1923
1924	case SVGA3D_R8G8B8A8_SNORM:
1925	pSurface->internalFormatGL = GL_RGB8;
1926	pSurface->formatGL = GL_BGRA;
1927	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1928	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1929	break;
1930	case SVGA3D_R16G16_UNORM:
1931	pSurface->internalFormatGL = GL_RG16;
1932	pSurface->formatGL = GL_RG;
1933	pSurface->typeGL = GL_UNSIGNED_SHORT;
1934	AssertTestFmt(SVGA3D_R16G16_UNORM);
1935	break;
1936
1937	/* Packed Video formats */
1938	case SVGA3D_UYVY:
1939	case SVGA3D_YUY2:
1940	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1941	pSurface->fEmulated = true;
1942	pSurface->internalFormatGL = GL_RGBA8;
1943	pSurface->formatGL = GL_BGRA;
1944	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1945	pSurface->cbBlockGL = 4 * pSurface->cxBlock * pSurface->cyBlock;
1946	break;
1947
1948	#if 0
1949	/* Planar video formats */
1950	case SVGA3D_NV12:
1951	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1952
1953	/* Video format with alpha */
1954	case SVGA3D_AYUV:
1955	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1956
1957	case SVGA3D_BC4_UNORM:
1958	case SVGA3D_BC5_UNORM:
1959	/* Unknown; only in DX10 & 11 */
1960	break;
1961	#endif
1962	default:
1963	AssertMsgFailed(("Unsupported format %d\n", format));
1964	break;
1965	}
1966	#undef AssertTestFmt
1967	}
1968
1969
1970	#if 0
1971	/**
1972	* Convert SVGA multi sample count value to its D3D equivalent
1973	*/
1974	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1975	{
1976	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1977	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1978
1979	if (multisampleCount > 16)
1980	return D3DMULTISAMPLE_NONE;
1981
1982	/** @todo exact same mapping as d3d? */
1983	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1984	}
1985	#endif
1986
1987	/**
1988	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1989	*
1990	* @param pState The VMSVGA3d state.
1991	* @param pSurface The surface being destroyed.
1992	*/
1993	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1994	{
1995	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1996	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1997
1998	switch (pSurface->enmOGLResType)
1999	{
2000	case VMSVGA3D_OGLRESTYPE_BUFFER:
2001	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
2002	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2003	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2004	break;
2005
2006	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2007	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
2008	glDeleteTextures(1, &pSurface->oglId.texture);
2009	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2010	if (pSurface->fEmulated)
2011	{
2012	if (pSurface->idEmulated)
2013	{
2014	glDeleteTextures(1, &pSurface->idEmulated);
2015	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2016	}
2017	}
2018	else
2019	{
2020	Assert(!pSurface->idEmulated);
2021	}
2022	break;
2023
2024	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2025	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2026	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2027	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2028	break;
2029
2030	default:
2031	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2032	("hint=%#x, type=%d\n",
2033	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2034	break;
2035	}
2036	}
2037
2038
2039	int vmsvga3dSurfaceCopy(PVGASTATECC pThisCC, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src,
2040	uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2041	{
2042	int rc;
2043
2044	LogFunc(("Copy %d boxes from sid=%u face=%u mipmap=%u to sid=%u face=%u mipmap=%u\n",
2045	cCopyBoxes, src.sid, src.face, src.mipmap, dest.sid, dest.face, dest.mipmap));
2046
2047	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
2048	AssertReturn(pState, VERR_INVALID_STATE);
2049
2050	PVMSVGA3DSURFACE pSurfaceSrc;
2051	rc = vmsvga3dSurfaceFromSid(pState, src.sid, &pSurfaceSrc);
2052	AssertRCReturn(rc, rc);
2053
2054	PVMSVGA3DSURFACE pSurfaceDst;
2055	rc = vmsvga3dSurfaceFromSid(pState, dest.sid, &pSurfaceDst);
2056	AssertRCReturn(rc, rc);
2057
2058	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceSrc))
2059	{
2060	/* The source surface is still in memory. */
2061	PVMSVGA3DMIPMAPLEVEL pMipmapLevelSrc;
2062	rc = vmsvga3dMipmapLevel(pSurfaceSrc, src.face, src.mipmap, &pMipmapLevelSrc);
2063	AssertRCReturn(rc, rc);
2064
2065	PVMSVGA3DMIPMAPLEVEL pMipmapLevelDst;
2066	rc = vmsvga3dMipmapLevel(pSurfaceDst, dest.face, dest.mipmap, &pMipmapLevelDst);
2067	AssertRCReturn(rc, rc);
2068
2069	/* The copy operation is performed on the shared context. */
2070	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2071	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2072
2073	/* Use glTexSubImage to upload the data to the destination texture.
2074	* The latter must be an OpenGL texture.
2075	*/
2076	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceDst))
2077	{
2078	LogFunc(("dest sid=%u type=0x%x format=%d -> create texture\n", dest.sid, pSurfaceDst->surfaceFlags, pSurfaceDst->format));
2079	rc = vmsvga3dBackCreateTexture(pState, pContext, pContext->id, pSurfaceDst);
2080	AssertRCReturn(rc, rc);
2081	}
2082
2083	GLenum target;
2084	if (pSurfaceDst->targetGL == GL_TEXTURE_CUBE_MAP)
2085	target = vmsvga3dCubemapFaceFromIndex(dest.face);
2086	else
2087	{
2088	AssertMsg(pSurfaceDst->targetGL == GL_TEXTURE_2D, ("Test %#x\n", pSurfaceDst->targetGL));
2089	target = pSurfaceDst->targetGL;
2090	}
2091
2092	/* Save the unpacking parameters and set what we need here. */
2093	VMSVGAPACKPARAMS SavedParams;
2094	vmsvga3dOglSetUnpackParams(pState, pContext,
2095	pMipmapLevelSrc->mipmapSize.width,
2096	target == GL_TEXTURE_3D ? pMipmapLevelSrc->mipmapSize.height : 0,
2097	&SavedParams);
2098
2099	glBindTexture(pSurfaceDst->targetGL, pSurfaceDst->oglId.texture);
2100	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2101
2102	for (uint32_t i = 0; i < cCopyBoxes; ++i)
2103	{
2104	SVGA3dCopyBox clipBox = pBox[i];
2105	vmsvgaR3ClipCopyBox(&pMipmapLevelSrc->mipmapSize, &pMipmapLevelDst->mipmapSize, &clipBox);
2106	if ( !clipBox.w
2107	\|\| !clipBox.h
2108	\|\| !clipBox.d)
2109	{
2110	LogFunc(("Skipped empty box.\n"));
2111	continue;
2112	}
2113
2114	LogFunc(("copy box %d,%d,%d %dx%d to %d,%d,%d\n",
2115	clipBox.srcx, clipBox.srcy, clipBox.srcz, clipBox.w, clipBox.h, clipBox.x, clipBox.y, clipBox.z));
2116
2117	uint32_t const u32BlockX = clipBox.srcx / pSurfaceSrc->cxBlock;
2118	uint32_t const u32BlockY = clipBox.srcy / pSurfaceSrc->cyBlock;
2119	uint32_t const u32BlockZ = clipBox.srcz;
2120	Assert(u32BlockX * pSurfaceSrc->cxBlock == clipBox.srcx);
2121	Assert(u32BlockY * pSurfaceSrc->cyBlock == clipBox.srcy);
2122
2123	uint8_t const pSrcBits = (uint8_t )pMipmapLevelSrc->pSurfaceData
2124	+ pMipmapLevelSrc->cbSurfacePlane * u32BlockZ
2125	+ pMipmapLevelSrc->cbSurfacePitch * u32BlockY
2126	+ pSurfaceSrc->cbBlock * u32BlockX;
2127
2128	if (target == GL_TEXTURE_3D)
2129	{
2130	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2131	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2132	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2133	{
2134	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2135	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2136	uint32_t const imageSize = cBlocksX * cBlocksY * clipBox.d * pSurfaceSrc->cbBlock;
2137	pState->ext.glCompressedTexSubImage3D(target, dest.mipmap,
2138	clipBox.x, clipBox.y, clipBox.z,
2139	clipBox.w, clipBox.h, clipBox.d,
2140	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2141	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2142	}
2143	else
2144	{
2145	pState->ext.glTexSubImage3D(target, dest.mipmap,
2146	clipBox.x, clipBox.y, clipBox.z,
2147	clipBox.w, clipBox.h, clipBox.d,
2148	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2149	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2150	}
2151	}
2152	else
2153	{
2154	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2155	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2156	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2157	{
2158	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2159	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2160	uint32_t const imageSize = cBlocksX * cBlocksY * pSurfaceSrc->cbBlock;
2161	pState->ext.glCompressedTexSubImage2D(target, dest.mipmap,
2162	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2163	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2164	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2165	}
2166	else
2167	{
2168	glTexSubImage2D(target, dest.mipmap,
2169	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2170	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2171	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2172	}
2173	}
2174	}
2175
2176	glBindTexture(pSurfaceDst->targetGL, 0);
2177	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2178
2179	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2180
2181	return VINF_SUCCESS;
2182	}
2183
2184	PVGASTATE pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVGASTATE);
2185	for (uint32_t i = 0; i < cCopyBoxes; i++)
2186	{
2187	SVGA3dBox destBox, srcBox;
2188
2189	srcBox.x = pBox[i].srcx;
2190	srcBox.y = pBox[i].srcy;
2191	srcBox.z = pBox[i].srcz;
2192	srcBox.w = pBox[i].w;
2193	srcBox.h = pBox[i].h;
2194	srcBox.d = pBox[i].d;
2195
2196	destBox.x = pBox[i].x;
2197	destBox.y = pBox[i].y;
2198	destBox.z = pBox[i].z;
2199	destBox.w = pBox[i].w;
2200	destBox.h = pBox[i].h;
2201	destBox.d = pBox[i].d;
2202
2203	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2204	rc = vmsvga3dSurfaceStretchBlt(pThis, pThisCC, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2205	AssertRCReturn(rc, rc);
2206	}
2207	return VINF_SUCCESS;
2208	}
2209
2210
2211	/**
2212	* Saves texture unpacking parameters and loads the specified ones.
2213	*
2214	* @param pState The VMSVGA3D state structure.
2215	* @param pContext The active context.
2216	* @param cxRow The number of pixels in a row. 0 for the entire width.
2217	* @param cyImage The height of the image in pixels. 0 for the entire height.
2218	* @param pSave Where to save stuff.
2219	*/
2220	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, GLint cxRow, GLint cyImage,
2221	PVMSVGAPACKPARAMS pSave)
2222	{
2223	RT_NOREF(pState);
2224
2225	/*
2226	* Save (ignore errors, setting the defaults we want and avoids restore).
2227	*/
2228	pSave->iAlignment = 1;
2229	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2230	pSave->cxRow = 0;
2231	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2232	pSave->cyImage = 0;
2233	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage), pState, pContext);
2234
2235	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2236	pSave->fSwapBytes = GL_FALSE;
2237	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2238	Assert(pSave->fSwapBytes == GL_FALSE);
2239
2240	pSave->fLsbFirst = GL_FALSE;
2241	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2242	Assert(pSave->fLsbFirst == GL_FALSE);
2243
2244	pSave->cSkipRows = 0;
2245	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2246	Assert(pSave->cSkipRows == 0);
2247
2248	pSave->cSkipPixels = 0;
2249	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2250	Assert(pSave->cSkipPixels == 0);
2251
2252	pSave->cSkipImages = 0;
2253	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2254	Assert(pSave->cSkipImages == 0);
2255
2256	VMSVGA3D_CLEAR_GL_ERRORS();
2257	#endif
2258
2259	/*
2260	* Setup unpack.
2261	*
2262	* Note! We use 1 as alignment here because we currently don't do any
2263	* aligning of line pitches anywhere.
2264	*/
2265	pSave->fChanged = 0;
2266	if (pSave->iAlignment != 1)
2267	{
2268	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2269	pSave->fChanged \|= VMSVGAPACKPARAMS_ALIGNMENT;
2270	}
2271	if (pSave->cxRow != cxRow)
2272	{
2273	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, cxRow), pState, pContext);
2274	pSave->fChanged \|= VMSVGAPACKPARAMS_ROW_LENGTH;
2275	}
2276	if (pSave->cyImage != cyImage)
2277	{
2278	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, cyImage), pState, pContext);
2279	pSave->fChanged \|= VMSVGAPACKPARAMS_IMAGE_HEIGHT;
2280	}
2281	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2282	if (pSave->fSwapBytes != 0)
2283	{
2284	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2285	pSave->fChanged \|= VMSVGAPACKPARAMS_SWAP_BYTES;
2286	}
2287	if (pSave->fLsbFirst != 0)
2288	{
2289	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2290	pSave->fChanged \|= VMSVGAPACKPARAMS_LSB_FIRST;
2291	}
2292	if (pSave->cSkipRows != 0)
2293	{
2294	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2295	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_ROWS;
2296	}
2297	if (pSave->cSkipPixels != 0)
2298	{
2299	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2300	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_PIXELS;
2301	}
2302	if (pSave->cSkipImages != 0)
2303	{
2304	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2305	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_IMAGES;
2306	}
2307	#endif
2308	}
2309
2310
2311	/**
2312	* Restores texture unpacking parameters.
2313	*
2314	* @param pState The VMSVGA3D state structure.
2315	* @param pContext The active context.
2316	* @param pSave Where stuff was saved.
2317	*/
2318	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext,
2319	PCVMSVGAPACKPARAMS pSave)
2320	{
2321	RT_NOREF(pState);
2322
2323	if (pSave->fChanged & VMSVGAPACKPARAMS_ALIGNMENT)
2324	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2325	if (pSave->fChanged & VMSVGAPACKPARAMS_ROW_LENGTH)
2326	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2327	if (pSave->fChanged & VMSVGAPACKPARAMS_IMAGE_HEIGHT)
2328	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2329	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2330	if (pSave->fChanged & VMSVGAPACKPARAMS_SWAP_BYTES)
2331	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2332	if (pSave->fChanged & VMSVGAPACKPARAMS_LSB_FIRST)
2333	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2334	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_ROWS)
2335	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2336	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_PIXELS)
2337	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2338	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_IMAGES)
2339	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2340	#endif
2341	}
2342
2343	/**
2344	* Create D3D/OpenGL texture object for the specified surface.
2345	*
2346	* Surfaces are created when needed.
2347	*
2348	* @param pState The VMSVGA3d state.
2349	* @param pContext The context.
2350	* @param idAssociatedContext Probably the same as pContext->id.
2351	* @param pSurface The surface to create the texture for.
2352	*/
2353	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2354	PVMSVGA3DSURFACE pSurface)
2355	{
2356	RT_NOREF(idAssociatedContext);
2357
2358	LogFunc(("sid=%u\n", pSurface->id));
2359
2360	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2361
2362	/* Fugure out what kind of texture we are creating. */
2363	GLenum binding;
2364	GLenum target;
2365	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2366	{
2367	Assert(pSurface->cFaces == 6);
2368
2369	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2370	target = GL_TEXTURE_CUBE_MAP;
2371	}
2372	else
2373	{
2374	if (pSurface->paMipmapLevels[0].mipmapSize.depth > 1)
2375	{
2376	binding = GL_TEXTURE_BINDING_3D;
2377	target = GL_TEXTURE_3D;
2378	}
2379	else
2380	{
2381	Assert(pSurface->cFaces == 1);
2382
2383	binding = GL_TEXTURE_BINDING_2D;
2384	target = GL_TEXTURE_2D;
2385	}
2386	}
2387
2388	/* All textures are created in the SharedCtx. */
2389	uint32_t idPrevCtx = pState->idActiveContext;
2390	pContext = &pState->SharedCtx;
2391	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2392
2393	glGenTextures(1, &pSurface->oglId.texture);
2394	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2395	if (pSurface->fEmulated)
2396	{
2397	glGenTextures(1, &pSurface->idEmulated);
2398	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2399	}
2400	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2401
2402	GLint activeTexture = 0;
2403	glGetIntegerv(binding, &activeTexture);
2404	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2405
2406	/* Must bind texture to the current context in order to change it. */
2407	glBindTexture(target, pSurface->oglId.texture);
2408	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2409
2410	/* Set the unpacking parameters. */
2411	VMSVGAPACKPARAMS SavedParams;
2412	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2413
2414	/** @todo Set the mip map generation filter settings. */
2415
2416	/* Set the mipmap base and max level parameters. */
2417	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2418	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2419	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2420	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2421
2422	if (pSurface->fDirty)
2423	LogFunc(("sync dirty texture\n"));
2424
2425	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2426	if (target == GL_TEXTURE_3D)
2427	{
2428	for (uint32_t i = 0; i < numMipLevels; ++i)
2429	{
2430	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2431	* exposing random host memory to the guest and helps a with the fedora 21 surface
2432	* corruption issues (launchpad, background, search field, login).
2433	*/
2434	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2435
2436	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2437	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2438
2439	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2440	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2441	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2442	{
2443	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2444	i,
2445	pSurface->internalFormatGL,
2446	pMipLevel->mipmapSize.width,
2447	pMipLevel->mipmapSize.height,
2448	pMipLevel->mipmapSize.depth,
2449	0,
2450	pMipLevel->cbSurface,
2451	pMipLevel->pSurfaceData);
2452	}
2453	else
2454	{
2455	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2456	i,
2457	pSurface->internalFormatGL,
2458	pMipLevel->mipmapSize.width,
2459	pMipLevel->mipmapSize.height,
2460	pMipLevel->mipmapSize.depth,
2461	0, /* border */
2462	pSurface->formatGL,
2463	pSurface->typeGL,
2464	pMipLevel->pSurfaceData);
2465	}
2466	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2467
2468	pMipLevel->fDirty = false;
2469	}
2470	}
2471	else if (target == GL_TEXTURE_CUBE_MAP)
2472	{
2473	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2474	{
2475	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2476
2477	for (uint32_t i = 0; i < numMipLevels; ++i)
2478	{
2479	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[iFace * numMipLevels + i];
2480	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2481	Assert(pMipLevel->mipmapSize.depth == 1);
2482
2483	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2484	iFace, i, pMipLevel->fDirty));
2485
2486	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2487	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2488	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2489	{
2490	pState->ext.glCompressedTexImage2D(Face,
2491	i,
2492	pSurface->internalFormatGL,
2493	pMipLevel->mipmapSize.width,
2494	pMipLevel->mipmapSize.height,
2495	0,
2496	pMipLevel->cbSurface,
2497	pMipLevel->pSurfaceData);
2498	}
2499	else
2500	{
2501	glTexImage2D(Face,
2502	i,
2503	pSurface->internalFormatGL,
2504	pMipLevel->mipmapSize.width,
2505	pMipLevel->mipmapSize.height,
2506	0,
2507	pSurface->formatGL,
2508	pSurface->typeGL,
2509	pMipLevel->pSurfaceData);
2510	}
2511	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2512
2513	pMipLevel->fDirty = false;
2514	}
2515	}
2516	}
2517	else if (target == GL_TEXTURE_2D)
2518	{
2519	for (uint32_t i = 0; i < numMipLevels; ++i)
2520	{
2521	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2522	* exposing random host memory to the guest and helps a with the fedora 21 surface
2523	* corruption issues (launchpad, background, search field, login).
2524	*/
2525	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2526	Assert(pMipLevel->mipmapSize.depth == 1);
2527
2528	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2529	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2530
2531	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2532	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2533	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2534	{
2535	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2536	i,
2537	pSurface->internalFormatGL,
2538	pMipLevel->mipmapSize.width,
2539	pMipLevel->mipmapSize.height,
2540	0,
2541	pMipLevel->cbSurface,
2542	pMipLevel->pSurfaceData);
2543	}
2544	else
2545	{
2546	glTexImage2D(GL_TEXTURE_2D,
2547	i,
2548	pSurface->internalFormatGL,
2549	pMipLevel->mipmapSize.width,
2550	pMipLevel->mipmapSize.height,
2551	0,
2552	pSurface->formatGL,
2553	pSurface->typeGL,
2554	NULL);
2555	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2556
2557	if (pSurface->fEmulated)
2558	{
2559	/* Bind the emulated texture and init it. */
2560	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2561	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2562
2563	glTexImage2D(GL_TEXTURE_2D,
2564	i,
2565	pSurface->internalFormatGL,
2566	pMipLevel->mipmapSize.width,
2567	pMipLevel->mipmapSize.height,
2568	0,
2569	pSurface->formatGL,
2570	pSurface->typeGL,
2571	NULL);
2572	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2573	}
2574
2575	/* Fetch texture data: either to the actual or to the emulated texture.
2576	* The pSurfaceData buffer may be smaller than the entire texture
2577	* for emulated formats, in which case only part of the texture is synched.
2578	*/
2579	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2580	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2581	glTexSubImage2D(GL_TEXTURE_2D,
2582	i,
2583	0,
2584	0,
2585	cBlocksX,
2586	cBlocksY,
2587	pSurface->formatGL,
2588	pSurface->typeGL,
2589	pMipLevel->pSurfaceData);
2590	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2591
2592	if (pSurface->fEmulated)
2593	{
2594	/* Update the actual texture using the format converter. */
2595	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2596
2597	/* Rebind the actual texture. */
2598	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2599	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2600	}
2601	}
2602	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2603
2604	pMipLevel->fDirty = false;
2605	}
2606	}
2607
2608	pSurface->fDirty = false;
2609
2610	/* Restore unpacking parameters. */
2611	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2612
2613	/* Restore the old active texture. */
2614	glBindTexture(target, activeTexture);
2615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2616
2617	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2618	pSurface->targetGL = target;
2619	pSurface->bindingGL = binding;
2620
2621	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2622	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2623	return VINF_SUCCESS;
2624	}
2625
2626
2627	/**
2628	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2629	*
2630	* @returns VBox status code.
2631	* @param pThis The VGA device instance.
2632	* @param pState The VMSVGA3d state.
2633	* @param pDstSurface The destination host surface.
2634	* @param uDstFace The destination face (valid).
2635	* @param uDstMipmap The destination mipmap level (valid).
2636	* @param pDstBox The destination box.
2637	* @param pSrcSurface The source host surface.
2638	* @param uSrcFace The destination face (valid).
2639	* @param uSrcMipmap The source mimap level (valid).
2640	* @param pSrcBox The source box.
2641	* @param enmMode The strecht blt mode .
2642	* @param pContext The VMSVGA3d context (already current for OGL).
2643	*/
2644	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2645	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2646	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2647	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2648	{
2649	RT_NOREF(pThis);
2650
2651	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2652	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2653
2654	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2655	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2656	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2657	{
2658	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2659	glAttachment = GL_DEPTH_ATTACHMENT;
2660	glMask = GL_DEPTH_BUFFER_BIT;
2661	}
2662
2663	/* Activate the read and draw framebuffer objects. */
2664	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2666	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2667	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2668
2669	/* Bind the source and destination objects to the right place. */
2670	GLenum textarget;
2671	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2672	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2673	else
2674	{
2675	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2676	textarget = GL_TEXTURE_2D;
2677	}
2678	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2679	pSrcSurface->oglId.texture, uSrcMipmap);
2680	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2681
2682	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2683	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2684	else
2685	{
2686	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2687	textarget = GL_TEXTURE_2D;
2688	}
2689	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2690	pDstSurface->oglId.texture, uDstMipmap);
2691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2692
2693	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2694	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2695	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2696	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2697	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2698
2699	pState->ext.glBlitFramebuffer(pSrcBox->x,
2700	pSrcBox->y,
2701	pSrcBox->x + pSrcBox->w, /* exclusive. */
2702	pSrcBox->y + pSrcBox->h,
2703	pDstBox->x,
2704	pDstBox->y,
2705	pDstBox->x + pDstBox->w, /* exclusive. */
2706	pDstBox->y + pDstBox->h,
2707	glMask,
2708	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2709	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2710
2711	/* Reset the frame buffer association */
2712	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2713	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2714
2715	return VINF_SUCCESS;
2716	}
2717
2718	/**
2719	* Save texture packing parameters and loads those appropriate for the given
2720	* surface.
2721	*
2722	* @param pState The VMSVGA3D state structure.
2723	* @param pContext The active context.
2724	* @param pSurface The surface.
2725	* @param pSave Where to save stuff.
2726	*/
2727	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2728	PVMSVGAPACKPARAMS pSave)
2729	{
2730	RT_NOREF(pState);
2731	/*
2732	* Save (ignore errors, setting the defaults we want and avoids restore).
2733	*/
2734	pSave->iAlignment = 1;
2735	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2736	pSave->cxRow = 0;
2737	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2738
2739	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2740	pSave->cyImage = 0;
2741	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2742	Assert(pSave->cyImage == 0);
2743
2744	pSave->fSwapBytes = GL_FALSE;
2745	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2746	Assert(pSave->fSwapBytes == GL_FALSE);
2747
2748	pSave->fLsbFirst = GL_FALSE;
2749	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2750	Assert(pSave->fLsbFirst == GL_FALSE);
2751
2752	pSave->cSkipRows = 0;
2753	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2754	Assert(pSave->cSkipRows == 0);
2755
2756	pSave->cSkipPixels = 0;
2757	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2758	Assert(pSave->cSkipPixels == 0);
2759
2760	pSave->cSkipImages = 0;
2761	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2762	Assert(pSave->cSkipImages == 0);
2763
2764	VMSVGA3D_CLEAR_GL_ERRORS();
2765	#endif
2766
2767	/*
2768	* Setup unpack.
2769	*
2770	* Note! We use 1 as alignment here because we currently don't do any
2771	* aligning of line pitches anywhere.
2772	*/
2773	NOREF(pSurface);
2774	if (pSave->iAlignment != 1)
2775	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2776	if (pSave->cxRow != 0)
2777	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2778	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2779	if (pSave->cyImage != 0)
2780	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2781	if (pSave->fSwapBytes != 0)
2782	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2783	if (pSave->fLsbFirst != 0)
2784	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2785	if (pSave->cSkipRows != 0)
2786	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2787	if (pSave->cSkipPixels != 0)
2788	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2789	if (pSave->cSkipImages != 0)
2790	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2791	#endif
2792	}
2793
2794
2795	/**
2796	* Restores texture packing parameters.
2797	*
2798	* @param pState The VMSVGA3D state structure.
2799	* @param pContext The active context.
2800	* @param pSurface The surface.
2801	* @param pSave Where stuff was saved.
2802	*/
2803	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2804	PCVMSVGAPACKPARAMS pSave)
2805	{
2806	RT_NOREF(pState, pSurface);
2807	if (pSave->iAlignment != 1)
2808	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2809	if (pSave->cxRow != 0)
2810	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2811	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2812	if (pSave->cyImage != 0)
2813	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2814	if (pSave->fSwapBytes != 0)
2815	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2816	if (pSave->fLsbFirst != 0)
2817	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2818	if (pSave->cSkipRows != 0)
2819	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2820	if (pSave->cSkipPixels != 0)
2821	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2822	if (pSave->cSkipImages != 0)
2823	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2824	#endif
2825	}
2826
2827
2828	/**
2829	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2830	*
2831	* @returns Failure status code or @a rc.
2832	* @param pThis The shared VGA/VMSVGA instance data.
2833	* @param pThisCC The VGA/VMSVGA state for ring-3.
2834	* @param pState The VMSVGA3d state.
2835	* @param pSurface The host surface.
2836	* @param pMipLevel Mipmap level. The caller knows it already.
2837	* @param uHostFace The host face (valid).
2838	* @param uHostMipmap The host mipmap level (valid).
2839	* @param GuestPtr The guest pointer.
2840	* @param cbGuestPitch The guest pitch.
2841	* @param transfer The transfer direction.
2842	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2843	* @param pContext The context (for OpenGL).
2844	* @param rc The current rc for all boxes.
2845	* @param iBox The current box number (for Direct 3D).
2846	*/
2847	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVGASTATECC pThisCC, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2848	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2849	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2850	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2851	{
2852	RT_NOREF(iBox);
2853
2854	switch (pSurface->enmOGLResType)
2855	{
2856	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2857	{
2858	uint32_t cbSurfacePitch;
2859	uint8_t *pDoubleBuffer;
2860	uint64_t offHst;
2861
2862	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2863	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2864	uint32_t const u32HostZ = pBox->z;
2865	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2866	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2867
2868	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2869	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2870	uint32_t const u32GuestZ = pBox->srcz / pSurface->cyBlock;
2871	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2872	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2873
2874	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2875	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2876	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2877
2878	GLenum texImageTarget;
2879	if (pSurface->targetGL == GL_TEXTURE_3D)
2880	{
2881	texImageTarget = GL_TEXTURE_3D;
2882	}
2883	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2884	{
2885	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2886	}
2887	else
2888	{
2889	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2890	texImageTarget = GL_TEXTURE_2D;
2891	}
2892
2893	/* The buffer must be large enough to hold entire texture in the OpenGL format. */
2894	pDoubleBuffer = (uint8_t )RTMemAlloc(pSurface->cbBlockGL pMipLevel->cBlocks);
2895	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2896
2897	if (transfer == SVGA3D_READ_HOST_VRAM)
2898	{
2899	/* Read the entire texture to the double buffer. */
2900	GLint activeTexture;
2901
2902	/* Must bind texture to the current context in order to read it. */
2903	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2904	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2905
2906	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2907	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2908
2909	if (pSurface->fEmulated)
2910	{
2911	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2912	}
2913
2914	/* Set row length and alignment of the input data. */
2915	VMSVGAPACKPARAMS SavedParams;
2916	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2917
2918	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2919	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2920	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2921	{
2922	pState->ext.glGetCompressedTexImage(texImageTarget, uHostMipmap, pDoubleBuffer);
2923	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2924	}
2925	else
2926	{
2927	glGetTexImage(texImageTarget, uHostMipmap, pSurface->formatGL, pSurface->typeGL, pDoubleBuffer);
2928	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2929	}
2930
2931	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2932
2933	/* Restore the old active texture. */
2934	glBindTexture(pSurface->targetGL, activeTexture);
2935	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2936
2937	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch + u32HostZ * pMipLevel->cbSurfacePlane;
2938	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2939	}
2940	else
2941	{
2942	/* The buffer will contain only the copied rectangle. */
2943	offHst = 0;
2944	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2945	}
2946
2947	uint64_t offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch + u32GuestZ * cbGuestPitch * pMipLevel->mipmapSize.height;
2948
2949	for (uint32_t iPlane = 0; iPlane < pBox->d; ++iPlane)
2950	{
2951	AssertBreak(offHst < UINT32_MAX);
2952	AssertBreak(offGst < UINT32_MAX);
2953
2954	rc = vmsvgaR3GmrTransfer(pThis,
2955	pThisCC,
2956	transfer,
2957	pDoubleBuffer,
2958	pMipLevel->cbSurface,
2959	(uint32_t)offHst,
2960	cbSurfacePitch,
2961	GuestPtr,
2962	(uint32_t)offGst,
2963	cbGuestPitch,
2964	cBlocksX * pSurface->cbBlock,
2965	cBlocksY);
2966	AssertRC(rc);
2967
2968	offHst += pMipLevel->cbSurfacePlane;
2969	offGst += pMipLevel->mipmapSize.height * cbGuestPitch;
2970	}
2971
2972	/* Update the opengl surface data. */
2973	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2974	{
2975	GLint activeTexture = 0;
2976	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2977	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2978
2979	/* Must bind texture to the current context in order to change it. */
2980	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2981	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2982
2983	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2984
2985	/* Set row length and alignment of the input data. */
2986	/* We do not need to set ROW_LENGTH to w here, because the image in pDoubleBuffer is tightly packed. */
2987	VMSVGAPACKPARAMS SavedParams;
2988	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2989
2990	if (texImageTarget == GL_TEXTURE_3D)
2991	{
2992	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2993	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2994	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2995	{
2996	pState->ext.glCompressedTexSubImage3D(texImageTarget,
2997	uHostMipmap,
2998	pBox->x,
2999	pBox->y,
3000	pBox->z,
3001	pBox->w,
3002	pBox->h,
3003	pBox->d,
3004	pSurface->internalFormatGL,
3005	cbSurfacePitch * cBlocksY * pBox->d,
3006	pDoubleBuffer);
3007	}
3008	else
3009	{
3010	pState->ext.glTexSubImage3D(texImageTarget,
3011	uHostMipmap,
3012	u32HostBlockX,
3013	u32HostBlockY,
3014	pBox->z,
3015	cBlocksX,
3016	cBlocksY,
3017	pBox->d,
3018	pSurface->formatGL,
3019	pSurface->typeGL,
3020	pDoubleBuffer);
3021	}
3022	}
3023	else
3024	{
3025	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3026	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3027	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3028	{
3029	pState->ext.glCompressedTexSubImage2D(texImageTarget,
3030	uHostMipmap,
3031	pBox->x,
3032	pBox->y,
3033	pBox->w,
3034	pBox->h,
3035	pSurface->internalFormatGL,
3036	cbSurfacePitch * cBlocksY,
3037	pDoubleBuffer);
3038	}
3039	else
3040	{
3041	glTexSubImage2D(texImageTarget,
3042	uHostMipmap,
3043	u32HostBlockX,
3044	u32HostBlockY,
3045	cBlocksX,
3046	cBlocksY,
3047	pSurface->formatGL,
3048	pSurface->typeGL,
3049	pDoubleBuffer);
3050	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3051
3052	if (pSurface->fEmulated)
3053	{
3054	/* Convert the texture to the actual texture if necessary */
3055	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
3056	}
3057	}
3058	}
3059	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3060
3061	/* Restore old values. */
3062	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
3063
3064	/* Restore the old active texture. */
3065	glBindTexture(pSurface->targetGL, activeTexture);
3066	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3067	}
3068
3069	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
3070
3071	/* Free the double buffer. */
3072	RTMemFree(pDoubleBuffer);
3073	break;
3074	}
3075
3076	case VMSVGA3D_OGLRESTYPE_BUFFER:
3077	{
3078	/* Buffers are uncompressed. */
3079	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
3080
3081	/* Caller already clipped pBox and buffers are 1-dimensional. */
3082	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
3083
3084	VMSVGA3D_CLEAR_GL_ERRORS();
3085	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3086	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3087	{
3088	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3089	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3090	if (RT_LIKELY(pbData != NULL))
3091	{
3092	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3093	GLint cbStrictBufSize;
3094	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3095	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3096	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3097	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3098	#endif
3099	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
3100	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
3101	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
3102	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
3103
3104	uint32_t const offHst = pBox->x * pSurface->cbBlock;
3105	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
3106
3107	rc = vmsvgaR3GmrTransfer(pThis,
3108	pThisCC,
3109	transfer,
3110	pbData,
3111	pMipLevel->cbSurface,
3112	offHst,
3113	pMipLevel->cbSurfacePitch,
3114	GuestPtr,
3115	pBox->srcx * pSurface->cbBlock,
3116	cbGuestPitch,
3117	cbWidth,
3118	pBox->h);
3119	AssertRC(rc);
3120
3121	Log4(("Buffer updated at [0x%x;0x%x):\n%.Rhxd\n", offHst, offHst + cbWidth, cbWidth, (uint8_t )pbData + offHst));
3122
3123	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3125	}
3126	else
3127	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3128	}
3129	else
3130	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3131	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3132	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3133	break;
3134	}
3135
3136	default:
3137	AssertFailed();
3138	break;
3139	}
3140
3141	return rc;
3142	}
3143
3144	int vmsvga3dGenerateMipmaps(PVGASTATECC pThisCC, uint32_t sid, SVGA3dTextureFilter filter)
3145	{
3146	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3147	PVMSVGA3DSURFACE pSurface;
3148	int rc = VINF_SUCCESS;
3149	PVMSVGA3DCONTEXT pContext;
3150	uint32_t cid;
3151	GLint activeTexture = 0;
3152
3153	AssertReturn(pState, VERR_NO_MEMORY);
3154
3155	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
3156	AssertRCReturn(rc, rc);
3157
3158	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3159	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3160	pSurface->autogenFilter = filter;
3161
3162	LogFunc(("sid=%u filter=%d\n", sid, filter));
3163
3164	cid = SVGA3D_INVALID_ID;
3165	pContext = &pState->SharedCtx;
3166	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3167
3168	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3169	{
3170	/* Unknown surface type; turn it into a texture. */
3171	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
3172	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
3173	AssertRCReturn(rc, rc);
3174	}
3175	else
3176	{
3177	/** @todo new filter */
3178	AssertFailed();
3179	}
3180
3181	glGetIntegerv(pSurface->bindingGL, &activeTexture);
3182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3183
3184	/* Must bind texture to the current context in order to change it. */
3185	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
3186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3187
3188	/* Generate the mip maps. */
3189	pState->ext.glGenerateMipmap(pSurface->targetGL);
3190	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3191
3192	/* Restore the old texture. */
3193	glBindTexture(pSurface->targetGL, activeTexture);
3194	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3195
3196	return VINF_SUCCESS;
3197	}
3198
3199
3200	#ifdef RT_OS_LINUX
3201	/**
3202	* X11 event handling thread.
3203	*
3204	* @returns VINF_SUCCESS (ignored)
3205	* @param hThreadSelf thread handle
3206	* @param pvUser pointer to pState structure
3207	*/
3208	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3209	{
3210	RT_NOREF(hThreadSelf);
3211	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3212	while (!pState->bTerminate)
3213	{
3214	while (XPending(pState->display) > 0)
3215	{
3216	XEvent event;
3217	XNextEvent(pState->display, &event);
3218
3219	switch (event.type)
3220	{
3221	default:
3222	break;
3223	}
3224	}
3225	/* sleep for 16ms to not burn too many cycles */
3226	RTThreadSleep(16);
3227	}
3228	return VINF_SUCCESS;
3229	}
3230	#endif // RT_OS_LINUX
3231
3232
3233	/**
3234	* Create a new 3d context
3235	*
3236	* @returns VBox status code.
3237	* @param pThisCC The VGA/VMSVGA state for ring-3.
3238	* @param cid Context id
3239	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3240	*/
3241	int vmsvga3dContextDefineOgl(PVGASTATECC pThisCC, uint32_t cid, uint32_t fFlags)
3242	{
3243	int rc;
3244	PVMSVGA3DCONTEXT pContext;
3245	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3246
3247	AssertReturn(pState, VERR_NO_MEMORY);
3248	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3249	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3250	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3251	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3252	#endif
3253
3254	Log(("vmsvga3dContextDefine id %x\n", cid));
3255
3256	if (cid == VMSVGA3D_SHARED_CTX_ID)
3257	pContext = &pState->SharedCtx;
3258	else
3259	{
3260	if (cid >= pState->cContexts)
3261	{
3262	/* Grow the array. */
3263	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3264	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3265	AssertReturn(pvNew, VERR_NO_MEMORY);
3266	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3267	while (pState->cContexts < cNew)
3268	{
3269	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3270	AssertReturn(pContext, VERR_NO_MEMORY);
3271	pContext->id = SVGA3D_INVALID_ID;
3272	pState->papContexts[pState->cContexts++] = pContext;
3273	}
3274	}
3275	/* If one already exists with this id, then destroy it now. */
3276	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3277	vmsvga3dContextDestroy(pThisCC, cid);
3278
3279	pContext = pState->papContexts[cid];
3280	}
3281
3282	/*
3283	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3284	*/
3285	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3286	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3287	{
3288	pSharedCtx = &pState->SharedCtx;
3289	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3290	{
3291	rc = vmsvga3dContextDefineOgl(pThisCC, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3292	AssertLogRelRCReturn(rc, rc);
3293
3294	/* Create resources which use the shared context. */
3295	vmsvga3dOnSharedContextDefine(pState);
3296	}
3297	}
3298
3299	/*
3300	* Initialize the context.
3301	*/
3302	memset(pContext, 0, sizeof(*pContext));
3303	pContext->id = cid;
3304	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3305	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3306
3307	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3308	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3309	pContext->idFramebuffer = OPENGL_INVALID_ID;
3310	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3311	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3312
3313	rc = ShaderContextCreate(&pContext->pShaderContext);
3314	AssertRCReturn(rc, rc);
3315
3316	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3317	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3318
3319	#ifdef RT_OS_WINDOWS
3320	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3321	* to present the rendered image. Rendered images from the guest will be copied to
3322	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3323	* system memory in the guest VRAM.
3324	*/
3325	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3326	AssertRCReturn(rc, rc);
3327
3328	pContext->hdc = GetDC(pContext->hwnd);
3329	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3330
3331	PIXELFORMATDESCRIPTOR pfd = {
3332	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3333	1, /* version number */
3334	PFD_DRAW_TO_WINDOW \| /* support window */
3335	PFD_SUPPORT_OPENGL, /* support OpenGL */
3336	PFD_TYPE_RGBA, /* RGBA type */
3337	24, /* 24-bit color depth */
3338	0, 0, 0, 0, 0, 0, /* color bits ignored */
3339	8, /* alpha buffer */
3340	0, /* shift bit ignored */
3341	0, /* no accumulation buffer */
3342	0, 0, 0, 0, /* accum bits ignored */
3343	16, /* set depth buffer */
3344	16, /* set stencil buffer */
3345	0, /* no auxiliary buffer */
3346	PFD_MAIN_PLANE, /* main layer */
3347	0, /* reserved */
3348	0, 0, 0 /* layer masks ignored */
3349	};
3350	int pixelFormat;
3351	BOOL ret;
3352
3353	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3354	/** @todo is this really necessary?? */
3355	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3356	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3357
3358	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3359	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3360
3361	pContext->hglrc = wglCreateContext(pContext->hdc);
3362	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3363
3364	if (pSharedCtx)
3365	{
3366	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3367	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3368	}
3369
3370	#elif defined(RT_OS_DARWIN)
3371	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3372
3373	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3374	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3375	NULL,
3376	4, 4,
3377	pShareContext, pContext->fOtherProfile);
3378
3379	#else
3380	if (pState->display == NULL)
3381	{
3382	/* get an X display and make sure we have glX 1.3 */
3383	pState->display = XOpenDisplay(0);
3384	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3385	int glxMajor, glxMinor;
3386	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3387	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3388	/* start our X event handling thread */
3389	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3390	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3391	}
3392
3393	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3394	/* Create a small 4x4 window required for GL context. */
3395	int attrib[] =
3396	{
3397	GLX_RGBA,
3398	GLX_RED_SIZE, 1,
3399	GLX_GREEN_SIZE, 1,
3400	GLX_BLUE_SIZE, 1,
3401	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3402	GLX_DOUBLEBUFFER,
3403	None
3404	};
3405	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3406	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3407	XSetWindowAttributes swa;
3408	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3409	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3410	swa.border_pixel = 0;
3411	swa.background_pixel = 0;
3412	swa.event_mask = StructureNotifyMask;
3413	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3414	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3415	0, 0, 4, 4,
3416	0, vi->depth, InputOutput,
3417	vi->visual, flags, &swa);
3418	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3419
3420	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3421
3422	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3423	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3424	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3425	#endif
3426
3427	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3428
3429	/* NULL during the first PowerOn call. */
3430	if (pState->ext.glGenFramebuffers)
3431	{
3432	/* Create a framebuffer object for this context. */
3433	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3435
3436	/* Bind the object to the framebuffer target. */
3437	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3439
3440	/* Create read and draw framebuffer objects for this context. */
3441	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3442	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3443
3444	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3445	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3446
3447	}
3448	#if 0
3449	/** @todo move to shader lib!!! */
3450	/* Clear the screen */
3451	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3452
3453	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3454	glClearIndex(0);
3455	glClearDepth(1);
3456	glClearStencil(0xffff);
3457	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3458	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3459	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3460	if (pState->ext.glProvokingVertex)
3461	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3462	/** @todo move to shader lib!!! */
3463	#endif
3464	return VINF_SUCCESS;
3465	}
3466
3467
3468	/**
3469	* Create a new 3d context
3470	*
3471	* @returns VBox status code.
3472	* @param pThisCC The VGA/VMSVGA state for ring-3.
3473	* @param cid Context id
3474	*/
3475	int vmsvga3dContextDefine(PVGASTATECC pThisCC, uint32_t cid)
3476	{
3477	return vmsvga3dContextDefineOgl(pThisCC, cid, 0/fFlags/);
3478	}
3479
3480	/**
3481	* Destroys a 3d context.
3482	*
3483	* @returns VBox status code.
3484	* @param pThisCC The VGA/VMSVGA state for ring-3.
3485	* @param pContext The context to destroy.
3486	* @param cid Context id
3487	*/
3488	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3489	{
3490	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3491	AssertReturn(pState, VERR_NO_MEMORY);
3492	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3493	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3494	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3495
3496	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3497
3498	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
3499	{
3500	/* Delete resources which use the shared context. */
3501	vmsvga3dOnSharedContextDestroy(pState);
3502	}
3503
3504	/* Destroy all leftover pixel shaders. */
3505	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3506	{
3507	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3508	vmsvga3dShaderDestroy(pThisCC, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3509	}
3510	if (pContext->paPixelShader)
3511	RTMemFree(pContext->paPixelShader);
3512
3513	/* Destroy all leftover vertex shaders. */
3514	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3515	{
3516	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3517	vmsvga3dShaderDestroy(pThisCC, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3518	}
3519	if (pContext->paVertexShader)
3520	RTMemFree(pContext->paVertexShader);
3521
3522	if (pContext->state.paVertexShaderConst)
3523	RTMemFree(pContext->state.paVertexShaderConst);
3524	if (pContext->state.paPixelShaderConst)
3525	RTMemFree(pContext->state.paPixelShaderConst);
3526
3527	if (pContext->pShaderContext)
3528	{
3529	int rc = ShaderContextDestroy(pContext->pShaderContext);
3530	AssertRC(rc);
3531	}
3532
3533	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3534	{
3535	/* Unbind the object from the framebuffer target. */
3536	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3537	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3538	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3539	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3540
3541	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3542	{
3543	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3544	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3545	}
3546	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3547	{
3548	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3549	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3550	}
3551	}
3552
3553	vmsvga3dOcclusionQueryDelete(pState, pContext);
3554
3555	#ifdef RT_OS_WINDOWS
3556	wglMakeCurrent(pContext->hdc, NULL);
3557	wglDeleteContext(pContext->hglrc);
3558	ReleaseDC(pContext->hwnd, pContext->hdc);
3559
3560	/* Destroy the window we've created. */
3561	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3562	AssertRC(rc);
3563	#elif defined(RT_OS_DARWIN)
3564	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3565	#elif defined(RT_OS_LINUX)
3566	glXMakeCurrent(pState->display, None, NULL);
3567	glXDestroyContext(pState->display, pContext->glxContext);
3568	XDestroyWindow(pState->display, pContext->window);
3569	#endif
3570
3571	memset(pContext, 0, sizeof(*pContext));
3572	pContext->id = SVGA3D_INVALID_ID;
3573
3574	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3575	return VINF_SUCCESS;
3576	}
3577
3578	/**
3579	* Destroy an existing 3d context
3580	*
3581	* @returns VBox status code.
3582	* @param pThisCC The VGA/VMSVGA state for ring-3.
3583	* @param cid Context id
3584	*/
3585	int vmsvga3dContextDestroy(PVGASTATECC pThisCC, uint32_t cid)
3586	{
3587	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3588	AssertReturn(pState, VERR_WRONG_ORDER);
3589
3590	/*
3591	* Resolve the context and hand it to the common worker function.
3592	*/
3593	if ( cid < pState->cContexts
3594	&& pState->papContexts[cid]->id == cid)
3595	return vmsvga3dContextDestroyOgl(pThisCC, pState->papContexts[cid], cid);
3596
3597	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3598	return VINF_SUCCESS;
3599	}
3600
3601	/**
3602	* Worker for vmsvga3dChangeMode that resizes a context.
3603	*
3604	* @param pState The VMSVGA3d state.
3605	* @param pContext The context.
3606	*/
3607	static void vmsvga3dChangeModeOneContext(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3608	{
3609	RT_NOREF(pState, pContext);
3610	/* Do nothing. The window is not used for presenting. */
3611	}
3612
3613	/* Handle resize */
3614	int vmsvga3dChangeMode(PVGASTATECC pThisCC)
3615	{
3616	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3617	AssertReturn(pState, VERR_NO_MEMORY);
3618
3619	/* Resize the shared context too. */
3620	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3621	vmsvga3dChangeModeOneContext(pState, &pState->SharedCtx);
3622
3623	/* Resize all active contexts. */
3624	for (uint32_t i = 0; i < pState->cContexts; i++)
3625	{
3626	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3627	if (pContext->id != SVGA3D_INVALID_ID)
3628	vmsvga3dChangeModeOneContext(pState, pContext);
3629	}
3630
3631	return VINF_SUCCESS;
3632	}
3633
3634
3635	int vmsvga3dSetTransform(PVGASTATECC pThisCC, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3636	{
3637	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3638	AssertReturn(pState, VERR_NO_MEMORY);
3639	bool fModelViewChanged = false;
3640
3641	Log(("vmsvga3dSetTransform cid=%u %s\n", cid, vmsvgaTransformToString(type)));
3642
3643	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
3644
3645	PVMSVGA3DCONTEXT pContext;
3646	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3647	AssertRCReturn(rc, rc);
3648
3649	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3650
3651	/* Save this matrix for vm state save/restore. */
3652	pContext->state.aTransformState[type].fValid = true;
3653	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3654	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3655
3656	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)));
3657	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)));
3658	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)));
3659	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)));
3660
3661	switch (type)
3662	{
3663	case SVGA3D_TRANSFORM_VIEW:
3664	/* View * World = Model View */
3665	glMatrixMode(GL_MODELVIEW);
3666	glLoadMatrixf(matrix);
3667	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3668	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3669	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3670	fModelViewChanged = true;
3671	break;
3672
3673	case SVGA3D_TRANSFORM_PROJECTION:
3674	{
3675	rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3676	AssertRCReturn(rc, rc);
3677	break;
3678	}
3679
3680	case SVGA3D_TRANSFORM_TEXTURE0:
3681	glMatrixMode(GL_TEXTURE);
3682	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3683	glLoadMatrixf(matrix);
3684	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3685	break;
3686
3687	case SVGA3D_TRANSFORM_TEXTURE1:
3688	case SVGA3D_TRANSFORM_TEXTURE2:
3689	case SVGA3D_TRANSFORM_TEXTURE3:
3690	case SVGA3D_TRANSFORM_TEXTURE4:
3691	case SVGA3D_TRANSFORM_TEXTURE5:
3692	case SVGA3D_TRANSFORM_TEXTURE6:
3693	case SVGA3D_TRANSFORM_TEXTURE7:
3694	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3695	return VERR_INVALID_PARAMETER;
3696
3697	case SVGA3D_TRANSFORM_WORLD:
3698	/* View * World = Model View */
3699	glMatrixMode(GL_MODELVIEW);
3700	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3701	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3702	else
3703	glLoadIdentity();
3704	glMultMatrixf(matrix);
3705	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3706	fModelViewChanged = true;
3707	break;
3708
3709	case SVGA3D_TRANSFORM_WORLD1:
3710	case SVGA3D_TRANSFORM_WORLD2:
3711	case SVGA3D_TRANSFORM_WORLD3:
3712	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3713	return VERR_INVALID_PARAMETER;
3714
3715	default:
3716	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3717	return VERR_INVALID_PARAMETER;
3718	}
3719
3720	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3721	if (fModelViewChanged)
3722	{
3723	/* Reprogram the clip planes. */
3724	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3725	{
3726	if (pContext->state.aClipPlane[j].fValid == true)
3727	vmsvga3dSetClipPlane(pThisCC, cid, j, pContext->state.aClipPlane[j].plane);
3728	}
3729
3730	/* Reprogram the light data. */
3731	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3732	{
3733	if (pContext->state.aLightData[j].fValidData == true)
3734	vmsvga3dSetLightData(pThisCC, cid, j, &pContext->state.aLightData[j].data);
3735	}
3736	}
3737
3738	return VINF_SUCCESS;
3739	}
3740
3741	int vmsvga3dSetZRange(PVGASTATECC pThisCC, uint32_t cid, SVGA3dZRange zRange)
3742	{
3743	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3744	AssertReturn(pState, VERR_NO_MEMORY);
3745
3746	Log(("vmsvga3dSetZRange cid=%u min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3747
3748	PVMSVGA3DCONTEXT pContext;
3749	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3750	AssertRCReturn(rc, rc);
3751
3752	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3753
3754	pContext->state.zRange = zRange;
3755	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3756
3757	if (zRange.min < -1.0)
3758	zRange.min = -1.0;
3759	if (zRange.max > 1.0)
3760	zRange.max = 1.0;
3761
3762	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3763	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3764	return VINF_SUCCESS;
3765	}
3766
3767	/**
3768	* Convert SVGA blend op value to its OpenGL equivalent
3769	*/
3770	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3771	{
3772	switch (blendOp)
3773	{
3774	case SVGA3D_BLENDOP_ZERO:
3775	return GL_ZERO;
3776	case SVGA3D_BLENDOP_ONE:
3777	return GL_ONE;
3778	case SVGA3D_BLENDOP_SRCCOLOR:
3779	return GL_SRC_COLOR;
3780	case SVGA3D_BLENDOP_INVSRCCOLOR:
3781	return GL_ONE_MINUS_SRC_COLOR;
3782	case SVGA3D_BLENDOP_SRCALPHA:
3783	return GL_SRC_ALPHA;
3784	case SVGA3D_BLENDOP_INVSRCALPHA:
3785	return GL_ONE_MINUS_SRC_ALPHA;
3786	case SVGA3D_BLENDOP_DESTALPHA:
3787	return GL_DST_ALPHA;
3788	case SVGA3D_BLENDOP_INVDESTALPHA:
3789	return GL_ONE_MINUS_DST_ALPHA;
3790	case SVGA3D_BLENDOP_DESTCOLOR:
3791	return GL_DST_COLOR;
3792	case SVGA3D_BLENDOP_INVDESTCOLOR:
3793	return GL_ONE_MINUS_DST_COLOR;
3794	case SVGA3D_BLENDOP_SRCALPHASAT:
3795	return GL_SRC_ALPHA_SATURATE;
3796	case SVGA3D_BLENDOP_BLENDFACTOR:
3797	return GL_CONSTANT_COLOR;
3798	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3799	return GL_ONE_MINUS_CONSTANT_COLOR;
3800	default:
3801	AssertFailed();
3802	return GL_ONE;
3803	}
3804	}
3805
3806	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3807	{
3808	switch (blendEq)
3809	{
3810	case SVGA3D_BLENDEQ_ADD:
3811	return GL_FUNC_ADD;
3812	case SVGA3D_BLENDEQ_SUBTRACT:
3813	return GL_FUNC_SUBTRACT;
3814	case SVGA3D_BLENDEQ_REVSUBTRACT:
3815	return GL_FUNC_REVERSE_SUBTRACT;
3816	case SVGA3D_BLENDEQ_MINIMUM:
3817	return GL_MIN;
3818	case SVGA3D_BLENDEQ_MAXIMUM:
3819	return GL_MAX;
3820	default:
3821	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3822	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3823	return GL_FUNC_ADD;
3824	}
3825	}
3826
3827	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3828	{
3829	switch (cmpFunc)
3830	{
3831	case SVGA3D_CMP_NEVER:
3832	return GL_NEVER;
3833	case SVGA3D_CMP_LESS:
3834	return GL_LESS;
3835	case SVGA3D_CMP_EQUAL:
3836	return GL_EQUAL;
3837	case SVGA3D_CMP_LESSEQUAL:
3838	return GL_LEQUAL;
3839	case SVGA3D_CMP_GREATER:
3840	return GL_GREATER;
3841	case SVGA3D_CMP_NOTEQUAL:
3842	return GL_NOTEQUAL;
3843	case SVGA3D_CMP_GREATEREQUAL:
3844	return GL_GEQUAL;
3845	case SVGA3D_CMP_ALWAYS:
3846	return GL_ALWAYS;
3847	default:
3848	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3849	return GL_LESS;
3850	}
3851	}
3852
3853	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3854	{
3855	switch (stencilOp)
3856	{
3857	case SVGA3D_STENCILOP_KEEP:
3858	return GL_KEEP;
3859	case SVGA3D_STENCILOP_ZERO:
3860	return GL_ZERO;
3861	case SVGA3D_STENCILOP_REPLACE:
3862	return GL_REPLACE;
3863	case SVGA3D_STENCILOP_INCRSAT:
3864	return GL_INCR_WRAP;
3865	case SVGA3D_STENCILOP_DECRSAT:
3866	return GL_DECR_WRAP;
3867	case SVGA3D_STENCILOP_INVERT:
3868	return GL_INVERT;
3869	case SVGA3D_STENCILOP_INCR:
3870	return GL_INCR;
3871	case SVGA3D_STENCILOP_DECR:
3872	return GL_DECR;
3873	default:
3874	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3875	return GL_KEEP;
3876	}
3877	}
3878
3879	int vmsvga3dSetRenderState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3880	{
3881	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3882	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3883	AssertReturn(pState, VERR_NO_MEMORY);
3884
3885	Log(("vmsvga3dSetRenderState cid=%u cRenderStates=%d\n", cid, cRenderStates));
3886
3887	PVMSVGA3DCONTEXT pContext;
3888	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
3889	AssertRCReturn(rc, rc);
3890
3891	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3892
3893	for (unsigned i = 0; i < cRenderStates; i++)
3894	{
3895	GLenum enableCap = ~(GLenum)0;
3896	Log(("vmsvga3dSetRenderState: cid=%u state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3897	/* Save the render state for vm state saving. */
3898	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
3899	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3900
3901	switch (pRenderState[i].state)
3902	{
3903	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3904	enableCap = GL_DEPTH_TEST;
3905	val = pRenderState[i].uintValue;
3906	break;
3907
3908	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3909	glDepthMask(!!pRenderState[i].uintValue);
3910	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3911	break;
3912
3913	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3914	enableCap = GL_ALPHA_TEST;
3915	val = pRenderState[i].uintValue;
3916	break;
3917
3918	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3919	enableCap = GL_DITHER;
3920	val = pRenderState[i].uintValue;
3921	break;
3922
3923	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3924	enableCap = GL_FOG;
3925	val = pRenderState[i].uintValue;
3926	break;
3927
3928	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3929	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3930	break;
3931
3932	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3933	enableCap = GL_LIGHTING;
3934	val = pRenderState[i].uintValue;
3935	break;
3936
3937	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3938	/* not applicable */
3939	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3940	break;
3941
3942	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3943	enableCap = GL_POINT_SPRITE_ARB;
3944	val = pRenderState[i].uintValue;
3945	break;
3946
3947	case SVGA3D_RS_POINTSIZE: /* float */
3948	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3949	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3950	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3951	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3952	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3953
3954	glPointSize(pRenderState[i].floatValue);
3955	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3956	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3957	break;
3958
3959	case SVGA3D_RS_POINTSIZEMIN: /* float */
3960	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3961	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3962	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3963	break;
3964
3965	case SVGA3D_RS_POINTSIZEMAX: /* float */
3966	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3967	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3968	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3969	break;
3970
3971	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3972	case SVGA3D_RS_POINTSCALE_A: /* float */
3973	case SVGA3D_RS_POINTSCALE_B: /* float */
3974	case SVGA3D_RS_POINTSCALE_C: /* float */
3975	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3976	break;
3977
3978	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3979	{
3980	GLfloat color[4]; /* red, green, blue, alpha */
3981
3982	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3983
3984	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3985	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3986	break;
3987	}
3988
3989	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3990	{
3991	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3992	for (uint32_t j = 0; j <= 5; j++)
3993	{
3994	if (pRenderState[i].uintValue & RT_BIT(j))
3995	glEnable(GL_CLIP_PLANE0 + j);
3996	else
3997	glDisable(GL_CLIP_PLANE0 + j);
3998	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3999	}
4000	break;
4001	}
4002
4003	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4004	{
4005	GLfloat color[4]; /* red, green, blue, alpha */
4006
4007	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4008
4009	glFogfv(GL_FOG_COLOR, color);
4010	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4011	break;
4012	}
4013
4014	case SVGA3D_RS_FOGSTART: /* float */
4015	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4016	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4017	break;
4018
4019	case SVGA3D_RS_FOGEND: /* float */
4020	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4022	break;
4023
4024	case SVGA3D_RS_FOGDENSITY: /* float */
4025	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4026	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4027	break;
4028
4029	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4030	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4031	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4032	break;
4033
4034	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4035	{
4036	SVGA3dFogMode mode;
4037	mode.uintValue = pRenderState[i].uintValue;
4038
4039	enableCap = GL_FOG_MODE;
4040	switch (mode.s.function)
4041	{
4042	case SVGA3D_FOGFUNC_EXP:
4043	val = GL_EXP;
4044	break;
4045	case SVGA3D_FOGFUNC_EXP2:
4046	val = GL_EXP2;
4047	break;
4048	case SVGA3D_FOGFUNC_LINEAR:
4049	val = GL_LINEAR;
4050	break;
4051	default:
4052	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4053	break;
4054	}
4055
4056	/** @todo how to switch between vertex and pixel fog modes??? */
4057	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4058	#if 0
4059	/* The fog type determines the render state. */
4060	switch (mode.s.type)
4061	{
4062	case SVGA3D_FOGTYPE_VERTEX:
4063	renderState = D3DRS_FOGVERTEXMODE;
4064	break;
4065	case SVGA3D_FOGTYPE_PIXEL:
4066	renderState = D3DRS_FOGTABLEMODE;
4067	break;
4068	default:
4069	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4070	break;
4071	}
4072	#endif
4073
4074	/* Set the fog base to depth or range. */
4075	switch (mode.s.base)
4076	{
4077	case SVGA3D_FOGBASE_DEPTHBASED:
4078	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4079	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4080	break;
4081	case SVGA3D_FOGBASE_RANGEBASED:
4082	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4083	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4084	break;
4085	default:
4086	/* ignore */
4087	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4088	break;
4089	}
4090	break;
4091	}
4092
4093	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4094	{
4095	SVGA3dFillMode mode;
4096
4097	mode.uintValue = pRenderState[i].uintValue;
4098
4099	switch (mode.s.mode)
4100	{
4101	case SVGA3D_FILLMODE_POINT:
4102	val = GL_POINT;
4103	break;
4104	case SVGA3D_FILLMODE_LINE:
4105	val = GL_LINE;
4106	break;
4107	case SVGA3D_FILLMODE_FILL:
4108	val = GL_FILL;
4109	break;
4110	default:
4111	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4112	break;
4113	}
4114	/* @note only front and back faces */
4115	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4116	glPolygonMode(GL_FRONT_AND_BACK, val);
4117	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4118	break;
4119	}
4120
4121	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4122	switch (pRenderState[i].uintValue)
4123	{
4124	case SVGA3D_SHADEMODE_FLAT:
4125	val = GL_FLAT;
4126	break;
4127
4128	case SVGA3D_SHADEMODE_SMOOTH:
4129	val = GL_SMOOTH;
4130	break;
4131
4132	default:
4133	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4134	break;
4135	}
4136
4137	glShadeModel(val);
4138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4139	break;
4140
4141	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4142	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4143	/** @todo */
4144	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4145	/*
4146	renderState = D3DRS_LINEPATTERN;
4147	val = pRenderState[i].uintValue;
4148	*/
4149	break;
4150
4151	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4152	enableCap = GL_LINE_SMOOTH;
4153	val = pRenderState[i].uintValue;
4154	break;
4155
4156	case SVGA3D_RS_LINEWIDTH: /* float */
4157	glLineWidth(pRenderState[i].floatValue);
4158	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4159	break;
4160
4161	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4162	{
4163	/* Refresh the blending state based on the new enable setting.
4164	* This will take existing states and set them using either glBlend* or glBlend*Separate.
4165	*/
4166	static SVGA3dRenderStateName const saRefreshState[] =
4167	{
4168	SVGA3D_RS_SRCBLEND,
4169	SVGA3D_RS_BLENDEQUATION
4170	};
4171	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4172	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4173	{
4174	renderstate[j].state = saRefreshState[j];
4175	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4176	}
4177
4178	rc = vmsvga3dSetRenderState(pThisCC, cid, 2, renderstate);
4179	AssertRCReturn(rc, rc);
4180
4181	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4182	continue; /* Ignore if blend is enabled */
4183	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4184	} RT_FALL_THRU();
4185
4186	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4187	enableCap = GL_BLEND;
4188	val = pRenderState[i].uintValue;
4189	break;
4190
4191	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4192	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4193	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4194	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4195	{
4196	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4197	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4198
4199	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4200	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4201	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4203	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4205	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4206	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4207
4208	switch (pRenderState[i].state)
4209	{
4210	case SVGA3D_RS_SRCBLEND:
4211	srcRGB = blendop;
4212	break;
4213	case SVGA3D_RS_DSTBLEND:
4214	dstRGB = blendop;
4215	break;
4216	case SVGA3D_RS_SRCBLENDALPHA:
4217	srcAlpha = blendop;
4218	break;
4219	case SVGA3D_RS_DSTBLENDALPHA:
4220	dstAlpha = blendop;
4221	break;
4222	default:
4223	/* not possible; shut up gcc */
4224	AssertFailed();
4225	break;
4226	}
4227
4228	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4229	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4230	else
4231	glBlendFunc(srcRGB, dstRGB);
4232	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4233	break;
4234	}
4235
4236	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4237	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4238	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4239	{
4240	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4241	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4242	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4243	}
4244	else
4245	{
4246	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4247	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4248	#else
4249	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4250	#endif
4251	}
4252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4253	break;
4254
4255	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4256	{
4257	GLfloat red, green, blue, alpha;
4258
4259	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4260
4261	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4262	glBlendColor(red, green, blue, alpha);
4263	#else
4264	pState->ext.glBlendColor(red, green, blue, alpha);
4265	#endif
4266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4267	break;
4268	}
4269
4270	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4271	{
4272	GLenum mode = GL_BACK; /* default for OpenGL */
4273
4274	switch (pRenderState[i].uintValue)
4275	{
4276	case SVGA3D_FACE_NONE:
4277	break;
4278	case SVGA3D_FACE_FRONT:
4279	mode = GL_FRONT;
4280	break;
4281	case SVGA3D_FACE_BACK:
4282	mode = GL_BACK;
4283	break;
4284	case SVGA3D_FACE_FRONT_BACK:
4285	mode = GL_FRONT_AND_BACK;
4286	break;
4287	default:
4288	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4289	break;
4290	}
4291	enableCap = GL_CULL_FACE;
4292	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4293	{
4294	glCullFace(mode);
4295	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4296	val = 1;
4297	}
4298	else
4299	val = 0;
4300	break;
4301	}
4302
4303	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4304	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4305	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4306	break;
4307
4308	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4309	{
4310	GLclampf ref;
4311
4312	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4313	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4314	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4315	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4316	break;
4317	}
4318
4319	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4320	{
4321	GLint func;
4322
4323	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4324	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4325	glAlphaFunc(func, pRenderState[i].floatValue);
4326	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4327	break;
4328	}
4329
4330	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4331	{
4332	/* Refresh the stencil state based on the new enable setting.
4333	* This will take existing states and set them using either glStencil or glStencil*Separate.
4334	*/
4335	static SVGA3dRenderStateName const saRefreshState[] =
4336	{
4337	SVGA3D_RS_STENCILFUNC,
4338	SVGA3D_RS_STENCILFAIL,
4339	SVGA3D_RS_CCWSTENCILFUNC,
4340	SVGA3D_RS_CCWSTENCILFAIL
4341	};
4342	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4343	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4344	{
4345	renderstate[j].state = saRefreshState[j];
4346	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4347	}
4348
4349	rc = vmsvga3dSetRenderState(pThisCC, cid, RT_ELEMENTS(renderstate), renderstate);
4350	AssertRCReturn(rc, rc);
4351
4352	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4353	continue; /* Ignore if stencil is enabled */
4354	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4355	} RT_FALL_THRU();
4356
4357	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4358	enableCap = GL_STENCIL_TEST;
4359	val = pRenderState[i].uintValue;
4360	break;
4361
4362	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4363	case SVGA3D_RS_STENCILREF: /* uint32_t */
4364	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4365	{
4366	GLint func, ref;
4367	GLuint mask;
4368
4369	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4370	glGetIntegerv(GL_STENCIL_FUNC, &func);
4371	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4372	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4373	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4374	glGetIntegerv(GL_STENCIL_REF, &ref);
4375	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4376
4377	/* Update the changed value. */
4378	switch (pRenderState[i].state)
4379	{
4380	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4381	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4382	break;
4383
4384	case SVGA3D_RS_STENCILREF: /* uint32_t */
4385	ref = pRenderState[i].uintValue;
4386	break;
4387
4388	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4389	mask = pRenderState[i].uintValue;
4390	break;
4391
4392	default:
4393	/* not possible; shut up gcc */
4394	AssertFailed();
4395	break;
4396	}
4397
4398	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4399	{
4400	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4401	}
4402	else
4403	{
4404	glStencilFunc(func, ref, mask);
4405	}
4406	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4407	break;
4408	}
4409
4410	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4411	glStencilMask(pRenderState[i].uintValue);
4412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4413	break;
4414
4415	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4416	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4417	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4418	{
4419	GLint sfail, dpfail, dppass;
4420	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4421
4422	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4423	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4424	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4425	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4426	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4427	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4428
4429	switch (pRenderState[i].state)
4430	{
4431	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4432	sfail = stencilop;
4433	break;
4434	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4435	dpfail = stencilop;
4436	break;
4437	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4438	dppass = stencilop;
4439	break;
4440	default:
4441	/* not possible; shut up gcc */
4442	AssertFailed();
4443	break;
4444	}
4445	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4446	{
4447	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4448	}
4449	else
4450	{
4451	glStencilOp(sfail, dpfail, dppass);
4452	}
4453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4454	break;
4455	}
4456
4457	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4458	{
4459	GLint ref;
4460	GLuint mask;
4461	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4462
4463	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4464	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4465	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4466	glGetIntegerv(GL_STENCIL_REF, &ref);
4467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4468
4469	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4470	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4471	break;
4472	}
4473
4474	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4475	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4476	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4477	{
4478	GLint sfail, dpfail, dppass;
4479	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4480
4481	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4483	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4484	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4485	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4486	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4487
4488	switch (pRenderState[i].state)
4489	{
4490	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4491	sfail = stencilop;
4492	break;
4493	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4494	dpfail = stencilop;
4495	break;
4496	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4497	dppass = stencilop;
4498	break;
4499	default:
4500	/* not possible; shut up gcc */
4501	AssertFailed();
4502	break;
4503	}
4504	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4505	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4506	break;
4507	}
4508
4509	case SVGA3D_RS_ZBIAS: /* float */
4510	/** @todo unknown meaning; depth bias is not identical
4511	renderState = D3DRS_DEPTHBIAS;
4512	val = pRenderState[i].uintValue;
4513	*/
4514	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4515	break;
4516
4517	case SVGA3D_RS_DEPTHBIAS: /* float */
4518	{
4519	GLfloat factor;
4520
4521	/** @todo not sure if the d3d & ogl definitions are identical. */
4522
4523	/* Do not change the factor part. */
4524	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4525	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4526
4527	glPolygonOffset(factor, pRenderState[i].floatValue);
4528	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4529	break;
4530	}
4531
4532	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4533	{
4534	GLfloat units;
4535
4536	/** @todo not sure if the d3d & ogl definitions are identical. */
4537
4538	/* Do not change the factor part. */
4539	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4541
4542	glPolygonOffset(pRenderState[i].floatValue, units);
4543	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4544	break;
4545	}
4546
4547	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4548	{
4549	GLboolean red, green, blue, alpha;
4550	SVGA3dColorMask mask;
4551
4552	mask.uintValue = pRenderState[i].uintValue;
4553
4554	red = mask.s.red;
4555	green = mask.s.green;
4556	blue = mask.s.blue;
4557	alpha = mask.s.alpha;
4558
4559	glColorMask(red, green, blue, alpha);
4560	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4561	break;
4562	}
4563
4564	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4565	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4566	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4567	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4568	break;
4569
4570	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4571	enableCap = GL_SCISSOR_TEST;
4572	val = pRenderState[i].uintValue;
4573	break;
4574
4575	#if 0
4576	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4577	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4578	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4579	val = pRenderState[i].uintValue;
4580	break;
4581
4582	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4583	renderState = D3DRS_SPECULARMATERIALSOURCE;
4584	val = pRenderState[i].uintValue;
4585	break;
4586
4587	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4588	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4589	val = pRenderState[i].uintValue;
4590	break;
4591
4592	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4593	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4594	val = pRenderState[i].uintValue;
4595	break;
4596	#endif
4597
4598	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4599	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4600	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4601	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4602	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4603	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4604	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4605	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4606	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4607	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4608	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4609	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4610	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4611	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4612	break;
4613
4614	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4615	case SVGA3D_RS_TWEENFACTOR: /* float */
4616	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4617	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4618	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4619	break;
4620
4621	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4622	enableCap = GL_MULTISAMPLE;
4623	val = pRenderState[i].uintValue;
4624	break;
4625
4626	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4627	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4628	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4629	break;
4630
4631	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4632	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4633	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4634	/*
4635	renderState = D3DRS_COORDINATETYPE;
4636	val = pRenderState[i].uintValue;
4637	*/
4638	break;
4639
4640	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4641	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4642	/* Invert the selected mode because of y-inversion (?) */
4643	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4644	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4645	break;
4646
4647	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4648	//AssertFailed();
4649	/*
4650	D3DRS_SRGBWRITEENABLE ??
4651	renderState = D3DRS_OUTPUTGAMMA;
4652	val = pRenderState[i].uintValue;
4653	*/
4654	break;
4655
4656	#if 0
4657
4658	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4659	//AssertFailed();
4660	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4661	val = pRenderState[i].uintValue;
4662	break;
4663
4664	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4665	renderState = D3DRS_TEXTUREFACTOR;
4666	val = pRenderState[i].uintValue;
4667	break;
4668
4669	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4670	renderState = D3DRS_LOCALVIEWER;
4671	val = pRenderState[i].uintValue;
4672	break;
4673
4674	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4675	AssertFailed();
4676	/*
4677	renderState = D3DRS_ZVISIBLE;
4678	val = pRenderState[i].uintValue;
4679	*/
4680	break;
4681
4682	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4683	renderState = D3DRS_CLIPPING;
4684	val = pRenderState[i].uintValue;
4685	break;
4686
4687	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4688	glTexParameter GL_TEXTURE_WRAP_S
4689	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4690	renderState = D3DRS_WRAP0;
4691	val = pRenderState[i].uintValue;
4692	break;
4693
4694	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4695	glTexParameter GL_TEXTURE_WRAP_T
4696	renderState = D3DRS_WRAP1;
4697	val = pRenderState[i].uintValue;
4698	break;
4699
4700	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4701	glTexParameter GL_TEXTURE_WRAP_R
4702	renderState = D3DRS_WRAP2;
4703	val = pRenderState[i].uintValue;
4704	break;
4705
4706
4707	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4708	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4709	val = pRenderState[i].uintValue;
4710	break;
4711
4712
4713	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4714	renderState = D3DRS_BLENDOPALPHA;
4715	val = pRenderState[i].uintValue;
4716	break;
4717
4718	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4719	AssertFailed();
4720	/*
4721	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4722	val = pRenderState[i].uintValue;
4723	*/
4724	break;
4725
4726	#endif
4727	default:
4728	AssertFailed();
4729	break;
4730	}
4731
4732	if (enableCap != ~(GLenum)0)
4733	{
4734	if (val)
4735	glEnable(enableCap);
4736	else
4737	glDisable(enableCap);
4738	}
4739	}
4740
4741	return VINF_SUCCESS;
4742	}
4743
4744	int vmsvga3dSetRenderTarget(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4745	{
4746	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4747
4748	AssertReturn(pState, VERR_NO_MEMORY);
4749	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4750
4751	LogFunc(("cid=%u type=%x sid=%u\n", cid, type, target.sid));
4752
4753	PVMSVGA3DCONTEXT pContext;
4754	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4755	AssertRCReturn(rc, rc);
4756
4757	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4758
4759	/* Save for vm state save/restore. */
4760	pContext->state.aRenderTargets[type] = target.sid;
4761
4762	if (target.sid == SVGA3D_INVALID_ID)
4763	{
4764	/* Disable render target. */
4765	switch (type)
4766	{
4767	case SVGA3D_RT_DEPTH:
4768	case SVGA3D_RT_STENCIL:
4769	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4770	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4771	break;
4772
4773	case SVGA3D_RT_COLOR0:
4774	case SVGA3D_RT_COLOR1:
4775	case SVGA3D_RT_COLOR2:
4776	case SVGA3D_RT_COLOR3:
4777	case SVGA3D_RT_COLOR4:
4778	case SVGA3D_RT_COLOR5:
4779	case SVGA3D_RT_COLOR6:
4780	case SVGA3D_RT_COLOR7:
4781	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4783	break;
4784
4785	default:
4786	AssertFailedReturn(VERR_INVALID_PARAMETER);
4787	}
4788	return VINF_SUCCESS;
4789	}
4790
4791	PVMSVGA3DSURFACE pRenderTarget;
4792	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
4793	AssertRCReturn(rc, rc);
4794
4795	switch (type)
4796	{
4797	case SVGA3D_RT_DEPTH:
4798	case SVGA3D_RT_STENCIL:
4799	#if 1
4800	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4801	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4802	{
4803	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4804	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4805	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4806	AssertRCReturn(rc, rc);
4807	}
4808
4809	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4810	Assert(!pRenderTarget->fDirty);
4811
4812	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4813
4814	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4815	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4816	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4817	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4818	#else
4819	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4820	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4821	{
4822	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4823	pContext = &pState->SharedCtx;
4824	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4825
4826	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
4829
4830	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4831	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4832
4833	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4834	pRenderTarget->internalFormatGL,
4835	pRenderTarget->paMipmapLevels[0].mipmapSize.width,
4836	pRenderTarget->paMipmapLevels[0].mipmapSize.height);
4837	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4838
4839	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4840	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4841
4842	pContext = pState->papContexts[cid];
4843	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4844	pRenderTarget->idWeakContextAssociation = cid;
4845	}
4846
4847	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4848	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4849	Assert(!pRenderTarget->fDirty);
4850	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4851
4852	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4853
4854	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4855	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4856	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4857	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4858	#endif
4859	break;
4860
4861	case SVGA3D_RT_COLOR0:
4862	case SVGA3D_RT_COLOR1:
4863	case SVGA3D_RT_COLOR2:
4864	case SVGA3D_RT_COLOR3:
4865	case SVGA3D_RT_COLOR4:
4866	case SVGA3D_RT_COLOR5:
4867	case SVGA3D_RT_COLOR6:
4868	case SVGA3D_RT_COLOR7:
4869	{
4870	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4871	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4872	{
4873	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));
4874	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4875	AssertRCReturn(rc, rc);
4876	}
4877
4878	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4879	Assert(!pRenderTarget->fDirty);
4880
4881	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4882
4883	GLenum textarget;
4884	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4885	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4886	else
4887	textarget = GL_TEXTURE_2D;
4888	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4889	textarget, pRenderTarget->oglId.texture, target.mipmap);
4890	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4891
4892	#ifdef DEBUG
4893	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4894	if (status != GL_FRAMEBUFFER_COMPLETE)
4895	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4896	#endif
4897	/** @todo use glDrawBuffers too? */
4898	break;
4899	}
4900
4901	default:
4902	AssertFailedReturn(VERR_INVALID_PARAMETER);
4903	}
4904
4905	return VINF_SUCCESS;
4906	}
4907
4908	#if 0
4909	/**
4910	* Convert SVGA texture combiner value to its D3D equivalent
4911	*/
4912	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4913	{
4914	switch (value)
4915	{
4916	case SVGA3D_TC_DISABLE:
4917	return D3DTOP_DISABLE;
4918	case SVGA3D_TC_SELECTARG1:
4919	return D3DTOP_SELECTARG1;
4920	case SVGA3D_TC_SELECTARG2:
4921	return D3DTOP_SELECTARG2;
4922	case SVGA3D_TC_MODULATE:
4923	return D3DTOP_MODULATE;
4924	case SVGA3D_TC_ADD:
4925	return D3DTOP_ADD;
4926	case SVGA3D_TC_ADDSIGNED:
4927	return D3DTOP_ADDSIGNED;
4928	case SVGA3D_TC_SUBTRACT:
4929	return D3DTOP_SUBTRACT;
4930	case SVGA3D_TC_BLENDTEXTUREALPHA:
4931	return D3DTOP_BLENDTEXTUREALPHA;
4932	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4933	return D3DTOP_BLENDDIFFUSEALPHA;
4934	case SVGA3D_TC_BLENDCURRENTALPHA:
4935	return D3DTOP_BLENDCURRENTALPHA;
4936	case SVGA3D_TC_BLENDFACTORALPHA:
4937	return D3DTOP_BLENDFACTORALPHA;
4938	case SVGA3D_TC_MODULATE2X:
4939	return D3DTOP_MODULATE2X;
4940	case SVGA3D_TC_MODULATE4X:
4941	return D3DTOP_MODULATE4X;
4942	case SVGA3D_TC_DSDT:
4943	AssertFailed(); /** @todo ??? */
4944	return D3DTOP_DISABLE;
4945	case SVGA3D_TC_DOTPRODUCT3:
4946	return D3DTOP_DOTPRODUCT3;
4947	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4948	return D3DTOP_BLENDTEXTUREALPHAPM;
4949	case SVGA3D_TC_ADDSIGNED2X:
4950	return D3DTOP_ADDSIGNED2X;
4951	case SVGA3D_TC_ADDSMOOTH:
4952	return D3DTOP_ADDSMOOTH;
4953	case SVGA3D_TC_PREMODULATE:
4954	return D3DTOP_PREMODULATE;
4955	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4956	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4957	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4958	return D3DTOP_MODULATECOLOR_ADDALPHA;
4959	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4960	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4961	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4962	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4963	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4964	return D3DTOP_BUMPENVMAPLUMINANCE;
4965	case SVGA3D_TC_MULTIPLYADD:
4966	return D3DTOP_MULTIPLYADD;
4967	case SVGA3D_TC_LERP:
4968	return D3DTOP_LERP;
4969	default:
4970	AssertFailed();
4971	return D3DTOP_DISABLE;
4972	}
4973	}
4974
4975	/**
4976	* Convert SVGA texture arg data value to its D3D equivalent
4977	*/
4978	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4979	{
4980	switch (value)
4981	{
4982	case SVGA3D_TA_CONSTANT:
4983	return D3DTA_CONSTANT;
4984	case SVGA3D_TA_PREVIOUS:
4985	return D3DTA_CURRENT; /* current = previous */
4986	case SVGA3D_TA_DIFFUSE:
4987	return D3DTA_DIFFUSE;
4988	case SVGA3D_TA_TEXTURE:
4989	return D3DTA_TEXTURE;
4990	case SVGA3D_TA_SPECULAR:
4991	return D3DTA_SPECULAR;
4992	default:
4993	AssertFailed();
4994	return 0;
4995	}
4996	}
4997
4998	/**
4999	* Convert SVGA texture transform flag value to its D3D equivalent
5000	*/
5001	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5002	{
5003	switch (value)
5004	{
5005	case SVGA3D_TEX_TRANSFORM_OFF:
5006	return D3DTTFF_DISABLE;
5007	case SVGA3D_TEX_TRANSFORM_S:
5008	return D3DTTFF_COUNT1; /** @todo correct? */
5009	case SVGA3D_TEX_TRANSFORM_T:
5010	return D3DTTFF_COUNT2; /** @todo correct? */
5011	case SVGA3D_TEX_TRANSFORM_R:
5012	return D3DTTFF_COUNT3; /** @todo correct? */
5013	case SVGA3D_TEX_TRANSFORM_Q:
5014	return D3DTTFF_COUNT4; /** @todo correct? */
5015	case SVGA3D_TEX_PROJECTED:
5016	return D3DTTFF_PROJECTED;
5017	default:
5018	AssertFailed();
5019	return 0;
5020	}
5021	}
5022	#endif
5023
5024	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5025	{
5026	switch (value)
5027	{
5028	case SVGA3D_TEX_ADDRESS_WRAP:
5029	return GL_REPEAT;
5030	case SVGA3D_TEX_ADDRESS_MIRROR:
5031	return GL_MIRRORED_REPEAT;
5032	case SVGA3D_TEX_ADDRESS_CLAMP:
5033	return GL_CLAMP_TO_EDGE;
5034	case SVGA3D_TEX_ADDRESS_BORDER:
5035	return GL_CLAMP_TO_BORDER;
5036	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5037	AssertFailed();
5038	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5039
5040	case SVGA3D_TEX_ADDRESS_EDGE:
5041	case SVGA3D_TEX_ADDRESS_INVALID:
5042	default:
5043	AssertFailed();
5044	return GL_REPEAT; /* default */
5045	}
5046	}
5047
5048	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5049	{
5050	switch (value)
5051	{
5052	case SVGA3D_TEX_FILTER_NONE:
5053	case SVGA3D_TEX_FILTER_LINEAR:
5054	case SVGA3D_TEX_FILTER_ANISOTROPIC: /* Anisotropic filtering is controlled by SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL */
5055	return GL_LINEAR;
5056	case SVGA3D_TEX_FILTER_NEAREST:
5057	return GL_NEAREST;
5058	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5059	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5060	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5061	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5062	default:
5063	AssertFailed();
5064	return GL_LINEAR; /* default */
5065	}
5066	}
5067
5068	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5069	{
5070	/* flip the red and blue bytes */
5071	uint8_t blue = value & 0xff;
5072	uint8_t red = (value >> 16) & 0xff;
5073	return (value & 0xff00ff00) \| red \| (blue << 16);
5074	}
5075
5076	int vmsvga3dSetTextureState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5077	{
5078	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5079	GLenum currentStage = ~(GLenum)0;
5080	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5081	AssertReturn(pState, VERR_NO_MEMORY);
5082
5083	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5084
5085	PVMSVGA3DCONTEXT pContext;
5086	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5087	AssertRCReturn(rc, rc);
5088
5089	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5090
5091	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
5092	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
5093
5094	for (uint32_t i = 0; i < cTextureStates; ++i)
5095	{
5096	GLenum textureType = ~(GLenum)0;
5097	#if 0
5098	GLenum samplerType = ~(GLenum)0;
5099	#endif
5100
5101	LogFunc(("cid=%u stage=%d type=%s (%x) val=%x\n",
5102	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5103
5104	/* Record the texture state for vm state saving. */
5105	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5106	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5107	{
5108	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5109	}
5110
5111	/* Activate the right texture unit for subsequent texture state changes. */
5112	if (pTextureState[i].stage != currentStage \|\| i == 0)
5113	{
5114	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5115	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5116	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5117	{
5118	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5119	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5120	currentStage = pTextureState[i].stage;
5121	}
5122	else
5123	{
5124	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5125	continue;
5126	}
5127
5128	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
5129	{
5130	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
5131	AssertRCReturn(rc, rc);
5132	}
5133	else
5134	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
5135	}
5136
5137	switch (pTextureState[i].name)
5138	{
5139	case SVGA3D_TS_BUMPENVMAT00: /* float */
5140	case SVGA3D_TS_BUMPENVMAT01: /* float */
5141	case SVGA3D_TS_BUMPENVMAT10: /* float */
5142	case SVGA3D_TS_BUMPENVMAT11: /* float */
5143	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5144	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5145	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5146	break;
5147
5148	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5149	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5150	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5151	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5152	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5153	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5154	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5155	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5156	/** @todo not used by MesaGL */
5157	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5158	break;
5159	#if 0
5160
5161	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5162	textureType = D3DTSS_TEXCOORDINDEX;
5163	val = pTextureState[i].value;
5164	break;
5165
5166	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5167	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5168	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5169	break;
5170	#endif
5171
5172	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5173	{
5174	uint32_t const sid = pTextureState[i].value;
5175
5176	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u replacing sid=%u\n",
5177	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
5178
5179	/* Only if texture actually changed. */ /// @todo needs testing.
5180	if (pContext->aSidActiveTextures[currentStage] != sid)
5181	{
5182	if (pCurrentTextureSurface)
5183	{
5184	/* Unselect the currently associated texture. */
5185	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5187
5188	if (currentStage < 8)
5189	{
5190	/* Necessary for the fixed pipeline. */
5191	glDisable(pCurrentTextureSurface->targetGL);
5192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5193	}
5194
5195	pCurrentTextureSurface = NULL;
5196	}
5197
5198	if (sid == SVGA3D_INVALID_ID)
5199	{
5200	Assert(pCurrentTextureSurface == NULL);
5201	}
5202	else
5203	{
5204	PVMSVGA3DSURFACE pSurface;
5205	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5206	AssertRCReturn(rc, rc);
5207
5208	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u (%d,%d) replacing sid=%u\n",
5209	currentStage, sid, pSurface->paMipmapLevels[0].mipmapSize.width,
5210	pSurface->paMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5211
5212	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5213	{
5214	Log(("CreateTexture (%d,%d) levels=%d\n",
5215	pSurface->paMipmapLevels[0].mipmapSize.width, pSurface->paMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5216	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5217	AssertRCReturn(rc, rc);
5218	}
5219
5220	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5221	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5222
5223	if (currentStage < 8)
5224	{
5225	/* Necessary for the fixed pipeline. */
5226	glEnable(pSurface->targetGL);
5227	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5228	}
5229
5230	/* Remember the currently active texture. */
5231	pCurrentTextureSurface = pSurface;
5232
5233	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5234	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5235	{
5236	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5237	{
5238	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5239
5240	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5241	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5242	vmsvga3dSetTextureState(pThisCC, pContext->id, 1, pTextureStateIter);
5243	}
5244	}
5245	}
5246
5247	pContext->aSidActiveTextures[currentStage] = sid;
5248	}
5249
5250	/* Finished; continue with the next one. */
5251	continue;
5252	}
5253
5254	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5255	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5256	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5257	break;
5258
5259	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5260	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5261	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5262	break;
5263
5264	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5265	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5266	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5267	break;
5268
5269	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5270	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5271	{
5272	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5273	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5274
5275	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5276	textureType = GL_TEXTURE_MIN_FILTER;
5277	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5278	{
5279	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5280	{
5281	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5282	val = GL_NEAREST_MIPMAP_LINEAR;
5283	else
5284	val = GL_NEAREST_MIPMAP_NEAREST;
5285	}
5286	else
5287	{
5288	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5289	val = GL_LINEAR_MIPMAP_LINEAR;
5290	else
5291	val = GL_LINEAR_MIPMAP_NEAREST;
5292	}
5293	}
5294	else
5295	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5296	break;
5297	}
5298
5299	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5300	textureType = GL_TEXTURE_MAG_FILTER;
5301	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5302	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5303	break;
5304
5305	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5306	{
5307	GLfloat color[4]; /* red, green, blue, alpha */
5308	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5309
5310	GLenum targetGL;
5311	if (pCurrentTextureSurface)
5312	targetGL = pCurrentTextureSurface->targetGL;
5313	else
5314	{
5315	/* No texture bound, assume 2D. */
5316	targetGL = GL_TEXTURE_2D;
5317	}
5318
5319	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5320	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5321	break;
5322	}
5323
5324	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5325	{
5326	GLenum targetGL;
5327	if (pCurrentTextureSurface)
5328	targetGL = pCurrentTextureSurface->targetGL;
5329	else
5330	{
5331	/* No texture bound, assume 2D. */
5332	targetGL = GL_TEXTURE_2D;
5333	}
5334
5335	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5337	break;
5338	}
5339
5340	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5341	textureType = GL_TEXTURE_BASE_LEVEL;
5342	val = pTextureState[i].value;
5343	break;
5344
5345	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5346	if (pState->caps.fTextureFilterAnisotropicSupported)
5347	{
5348	textureType = GL_TEXTURE_MAX_ANISOTROPY_EXT;
5349	val = RT_MIN((GLint)pTextureState[i].value, pState->caps.maxTextureAnisotropy);
5350	} /* otherwise ignore. */
5351	break;
5352
5353	#if 0
5354	case SVGA3D_TS_GAMMA: /* float */
5355	samplerType = D3DSAMP_SRGBTEXTURE;
5356	/* Boolean in D3D */
5357	if (pTextureState[i].floatValue == 1.0f)
5358	val = FALSE;
5359	else
5360	val = TRUE;
5361	break;
5362	#endif
5363	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5364	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5365	AssertFailed();
5366	break;
5367
5368	default:
5369	//AssertFailed();
5370	break;
5371	}
5372
5373	if (textureType != ~(GLenum)0)
5374	{
5375	GLenum targetGL;
5376	if (pCurrentTextureSurface)
5377	targetGL = pCurrentTextureSurface->targetGL;
5378	else
5379	{
5380	/* No texture bound, assume 2D. */
5381	targetGL = GL_TEXTURE_2D;
5382	}
5383
5384	switch (pTextureState[i].name)
5385	{
5386	case SVGA3D_TS_MINFILTER:
5387	case SVGA3D_TS_MAGFILTER:
5388	{
5389	if (pState->caps.fTextureFilterAnisotropicSupported)
5390	{
5391	uint32_t const anisotropyLevel = (SVGA3dTextureFilter)pTextureState[i].value == SVGA3D_TEX_FILTER_ANISOTROPIC
5392	? RT_MAX(1, pContext->state.aTextureStates[currentStage][SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL].value)
5393	: 1;
5394	glTexParameteri(targetGL, GL_TEXTURE_MAX_ANISOTROPY_EXT, RT_MIN((GLint)anisotropyLevel, pState->caps.maxTextureAnisotropy));
5395	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5396	}
5397	} break;
5398
5399	default: break;
5400	}
5401
5402	glTexParameteri(targetGL, textureType, val);
5403	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5404	}
5405	}
5406
5407	return VINF_SUCCESS;
5408	}
5409
5410	int vmsvga3dSetMaterial(PVGASTATECC pThisCC, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5411	{
5412	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5413	AssertReturn(pState, VERR_NO_MEMORY);
5414
5415	LogFunc(("cid=%u face %d\n", cid, face));
5416
5417	PVMSVGA3DCONTEXT pContext;
5418	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5419	AssertRCReturn(rc, rc);
5420
5421	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5422
5423	GLenum oglFace;
5424	switch (face)
5425	{
5426	case SVGA3D_FACE_NONE:
5427	case SVGA3D_FACE_FRONT:
5428	oglFace = GL_FRONT;
5429	break;
5430
5431	case SVGA3D_FACE_BACK:
5432	oglFace = GL_BACK;
5433	break;
5434
5435	case SVGA3D_FACE_FRONT_BACK:
5436	oglFace = GL_FRONT_AND_BACK;
5437	break;
5438
5439	default:
5440	AssertFailedReturn(VERR_INVALID_PARAMETER);
5441	}
5442
5443	/* Save for vm state save/restore. */
5444	pContext->state.aMaterial[face].fValid = true;
5445	pContext->state.aMaterial[face].material = *pMaterial;
5446	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5447
5448	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5449	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5450	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5451	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5452	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5454
5455	return VINF_SUCCESS;
5456	}
5457
5458	/** @todo Move into separate library as we are using logic from Wine here. */
5459	int vmsvga3dSetLightData(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5460	{
5461	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5462	AssertReturn(pState, VERR_NO_MEMORY);
5463
5464	LogFunc(("vmsvga3dSetLightData cid=%u index=%d type=%d\n", cid, index, pData->type));
5465
5466	PVMSVGA3DCONTEXT pContext;
5467	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5468	AssertRCReturn(rc, rc);
5469
5470	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5471
5472	/* Store for vm state save/restore */
5473	if (index < SVGA3D_MAX_LIGHTS)
5474	{
5475	pContext->state.aLightData[index].fValidData = true;
5476	pContext->state.aLightData[index].data = *pData;
5477	}
5478	else
5479	AssertFailed();
5480
5481	if ( pData->attenuation0 < 0.0f
5482	\|\| pData->attenuation1 < 0.0f
5483	\|\| pData->attenuation2 < 0.0f)
5484	{
5485	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5486	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5487	}
5488
5489	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5490	glMatrixMode(GL_MODELVIEW);
5491	glPushMatrix();
5492	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5493
5494	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5495	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5496	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5497
5498	float QuadAttenuation;
5499	if (pData->range * pData->range >= FLT_MIN)
5500	QuadAttenuation = 1.4f / (pData->range * pData->range);
5501	else
5502	QuadAttenuation = 0.0f;
5503
5504	switch (pData->type)
5505	{
5506	case SVGA3D_LIGHTTYPE_POINT:
5507	{
5508	GLfloat position[4];
5509
5510	position[0] = pData->position[0];
5511	position[1] = pData->position[1];
5512	position[2] = pData->position[2];
5513	position[3] = 1.0f;
5514
5515	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5516	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5517
5518	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5519	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5520
5521	/* Attenuation - Are these right? guessing... */
5522	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5523	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5524
5525	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5526	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5527
5528	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5529	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5530
5531	/** @todo range */
5532	break;
5533	}
5534
5535	case SVGA3D_LIGHTTYPE_SPOT1:
5536	{
5537	GLfloat exponent;
5538	GLfloat position[4];
5539	const GLfloat pi = 4.0f * atanf(1.0f);
5540
5541	position[0] = pData->position[0];
5542	position[1] = pData->position[1];
5543	position[2] = pData->position[2];
5544	position[3] = 1.0f;
5545
5546	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5547	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5548
5549	position[0] = pData->direction[0];
5550	position[1] = pData->direction[1];
5551	position[2] = pData->direction[2];
5552	position[3] = 1.0f;
5553
5554	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5555	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5556
5557	/*
5558	* opengl-ish and d3d-ish spot lights use too different models for the
5559	* light "intensity" as a function of the angle towards the main light direction,
5560	* so we only can approximate very roughly.
5561	* however spot lights are rather rarely used in games (if ever used at all).
5562	* furthermore if still used, probably nobody pays attention to such details.
5563	*/
5564	if (pData->falloff == 0)
5565	{
5566	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5567	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5568	* will always be 1.0 for both of them, and we don't have to care for the
5569	* rest of the rather complex calculation
5570	*/
5571	exponent = 0.0f;
5572	}
5573	else
5574	{
5575	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5576	if (rho < 0.0001f)
5577	rho = 0.0001f;
5578	exponent = -0.3f/log(cos(rho/2));
5579	}
5580	if (exponent > 128.0f)
5581	exponent = 128.0f;
5582
5583	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5584	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5585
5586	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5587	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5588
5589	/* Attenuation - Are these right? guessing... */
5590	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5591	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5592
5593	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5594	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5595
5596	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5597	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5598
5599	/** @todo range */
5600	break;
5601	}
5602
5603	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5604	{
5605	GLfloat position[4];
5606
5607	position[0] = -pData->direction[0];
5608	position[1] = -pData->direction[1];
5609	position[2] = -pData->direction[2];
5610	position[3] = 0.0f;
5611
5612	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5613	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5614
5615	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5616	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5617
5618	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5619	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5620	break;
5621	}
5622
5623	case SVGA3D_LIGHTTYPE_SPOT2:
5624	default:
5625	Log(("Unsupported light type!!\n"));
5626	rc = VERR_INVALID_PARAMETER;
5627	break;
5628	}
5629
5630	/* Restore the modelview matrix */
5631	glPopMatrix();
5632
5633	return rc;
5634	}
5635
5636	int vmsvga3dSetLightEnabled(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, uint32_t enabled)
5637	{
5638	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5639	AssertReturn(pState, VERR_NO_MEMORY);
5640
5641	LogFunc(("cid=%u %d -> %d\n", cid, index, enabled));
5642
5643	PVMSVGA3DCONTEXT pContext;
5644	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5645	AssertRCReturn(rc, rc);
5646
5647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5648
5649	/* Store for vm state save/restore */
5650	if (index < SVGA3D_MAX_LIGHTS)
5651	pContext->state.aLightData[index].fEnabled = !!enabled;
5652	else
5653	AssertFailed();
5654
5655	if (enabled)
5656	{
5657	if (index < SVGA3D_MAX_LIGHTS)
5658	{
5659	/* Load the default settings if none have been set yet. */
5660	if (!pContext->state.aLightData[index].fValidData)
5661	vmsvga3dSetLightData(pThisCC, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5662	}
5663	glEnable(GL_LIGHT0 + index);
5664	}
5665	else
5666	glDisable(GL_LIGHT0 + index);
5667
5668	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5669	return VINF_SUCCESS;
5670	}
5671
5672	int vmsvga3dSetViewPort(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
5673	{
5674	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5675	AssertReturn(pState, VERR_NO_MEMORY);
5676
5677	Log(("vmsvga3dSetViewPort cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5678
5679	PVMSVGA3DCONTEXT pContext;
5680	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5681	AssertRCReturn(rc, rc);
5682
5683	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5684
5685	/* Save for vm state save/restore. */
5686	pContext->state.RectViewPort = *pRect;
5687	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5688
5689	/** @todo y-inversion for partial viewport coordinates? */
5690	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5692
5693	/* Reset the projection matrix as that relies on the viewport setting. */
5694	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5695	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION,
5696	pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5697	else
5698	{
5699	float matrix[16];
5700
5701	/* identity matrix if no matrix set. */
5702	memset(matrix, 0, sizeof(matrix));
5703	matrix[0] = 1.0;
5704	matrix[5] = 1.0;
5705	matrix[10] = 1.0;
5706	matrix[15] = 1.0;
5707	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5708	}
5709
5710	return VINF_SUCCESS;
5711	}
5712
5713	int vmsvga3dSetClipPlane(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, float plane[4])
5714	{
5715	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5716	AssertReturn(pState, VERR_NO_MEMORY);
5717	double oglPlane[4];
5718
5719	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)));
5720	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5721
5722	PVMSVGA3DCONTEXT pContext;
5723	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5724	AssertRCReturn(rc, rc);
5725
5726	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5727
5728	/* Store for vm state save/restore. */
5729	pContext->state.aClipPlane[index].fValid = true;
5730	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5731
5732	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5733	oglPlane[0] = (double)plane[0];
5734	oglPlane[1] = (double)plane[1];
5735	oglPlane[2] = (double)plane[2];
5736	oglPlane[3] = (double)plane[3];
5737
5738	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5739	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5740
5741	return VINF_SUCCESS;
5742	}
5743
5744	int vmsvga3dSetScissorRect(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
5745	{
5746	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5747	AssertReturn(pState, VERR_NO_MEMORY);
5748
5749	Log(("vmsvga3dSetScissorRect cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5750
5751	PVMSVGA3DCONTEXT pContext;
5752	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5753	AssertRCReturn(rc, rc);
5754
5755	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5756
5757	/* Store for vm state save/restore. */
5758	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5759	pContext->state.RectScissor = *pRect;
5760
5761	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5762	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5763
5764	return VINF_SUCCESS;
5765	}
5766
5767	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5768	{
5769	/* Convert byte color components to float (0-1.0) */
5770	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5771	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5772	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5773	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5774	}
5775
5776	int vmsvga3dCommandClear(PVGASTATECC pThisCC, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5777	uint32_t cRects, SVGA3dRect *pRect)
5778	{
5779	GLbitfield mask = 0;
5780	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5781	AssertReturn(pState, VERR_NO_MEMORY);
5782	GLboolean fDepthWriteEnabled = GL_FALSE;
5783
5784	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));
5785
5786	PVMSVGA3DCONTEXT pContext;
5787	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5788	AssertRCReturn(rc, rc);
5789
5790	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5791
5792	if (clearFlag & SVGA3D_CLEAR_COLOR)
5793	{
5794	GLfloat red, green, blue, alpha;
5795
5796	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5797
5798	/* Set the color clear value. */
5799	glClearColor(red, green, blue, alpha);
5800
5801	mask \|= GL_COLOR_BUFFER_BIT;
5802	}
5803	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5804	{
5805	/** @todo possibly the same problem as with glDepthMask */
5806	glClearStencil(stencil);
5807	mask \|= GL_STENCIL_BUFFER_BIT;
5808	}
5809	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5810	{
5811	glClearDepth((GLdouble)depth);
5812	mask \|= GL_DEPTH_BUFFER_BIT;
5813
5814	/* glClear will not clear the depth buffer if writing is disabled. */
5815	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5816	if (fDepthWriteEnabled == GL_FALSE)
5817	glDepthMask(GL_TRUE);
5818	}
5819
5820	if (cRects)
5821	{
5822	/* Save the current scissor test bit and scissor box. */
5823	glPushAttrib(GL_SCISSOR_BIT);
5824	glEnable(GL_SCISSOR_TEST);
5825	for (unsigned i=0; i < cRects; i++)
5826	{
5827	Log(("vmsvga3dCommandClear: rect %d (%d,%d)(%d,%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].x + pRect[i].w, pRect[i].y + pRect[i].h));
5828	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5830	glClear(mask);
5831	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5832	}
5833	/* Restore the old scissor test bit and box */
5834	glPopAttrib();
5835	}
5836	else
5837	{
5838	glClear(mask);
5839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5840	}
5841
5842	/* Restore depth write state. */
5843	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5844	&& fDepthWriteEnabled == GL_FALSE)
5845	glDepthMask(GL_FALSE);
5846
5847	return VINF_SUCCESS;
5848	}
5849
5850	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5851	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5852	{
5853	normalized = GL_FALSE;
5854	switch (identity.type)
5855	{
5856	case SVGA3D_DECLTYPE_FLOAT1:
5857	size = 1;
5858	type = GL_FLOAT;
5859	break;
5860	case SVGA3D_DECLTYPE_FLOAT2:
5861	size = 2;
5862	type = GL_FLOAT;
5863	break;
5864	case SVGA3D_DECLTYPE_FLOAT3:
5865	size = 3;
5866	type = GL_FLOAT;
5867	break;
5868	case SVGA3D_DECLTYPE_FLOAT4:
5869	size = 4;
5870	type = GL_FLOAT;
5871	break;
5872
5873	case SVGA3D_DECLTYPE_D3DCOLOR:
5874	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5875	type = GL_UNSIGNED_BYTE;
5876	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5877	break;
5878
5879	case SVGA3D_DECLTYPE_UBYTE4N:
5880	normalized = GL_TRUE;
5881	RT_FALL_THRU();
5882	case SVGA3D_DECLTYPE_UBYTE4:
5883	size = 4;
5884	type = GL_UNSIGNED_BYTE;
5885	break;
5886
5887	case SVGA3D_DECLTYPE_SHORT2N:
5888	normalized = GL_TRUE;
5889	RT_FALL_THRU();
5890	case SVGA3D_DECLTYPE_SHORT2:
5891	size = 2;
5892	type = GL_SHORT;
5893	break;
5894
5895	case SVGA3D_DECLTYPE_SHORT4N:
5896	normalized = GL_TRUE;
5897	RT_FALL_THRU();
5898	case SVGA3D_DECLTYPE_SHORT4:
5899	size = 4;
5900	type = GL_SHORT;
5901	break;
5902
5903	case SVGA3D_DECLTYPE_USHORT4N:
5904	normalized = GL_TRUE;
5905	size = 4;
5906	type = GL_UNSIGNED_SHORT;
5907	break;
5908
5909	case SVGA3D_DECLTYPE_USHORT2N:
5910	normalized = GL_TRUE;
5911	size = 2;
5912	type = GL_UNSIGNED_SHORT;
5913	break;
5914
5915	case SVGA3D_DECLTYPE_UDEC3:
5916	size = 3;
5917	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5918	break;
5919
5920	case SVGA3D_DECLTYPE_DEC3N:
5921	normalized = true;
5922	size = 3;
5923	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5924	break;
5925
5926	case SVGA3D_DECLTYPE_FLOAT16_2:
5927	size = 2;
5928	type = GL_HALF_FLOAT;
5929	break;
5930	case SVGA3D_DECLTYPE_FLOAT16_4:
5931	size = 4;
5932	type = GL_HALF_FLOAT;
5933	break;
5934	default:
5935	AssertFailedReturn(VERR_INVALID_PARAMETER);
5936	}
5937
5938	//pVertexElement->Method = identity.method;
5939	//pVertexElement->Usage = identity.usage;
5940
5941	return VINF_SUCCESS;
5942	}
5943
5944	/* Convert VMWare primitive type to its OpenGL equivalent. */
5945	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5946	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5947	{
5948	switch (PrimitiveType)
5949	{
5950	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5951	*pMode = GL_TRIANGLES;
5952	pcVertices = cPrimitiveCount 3;
5953	break;
5954	case SVGA3D_PRIMITIVE_POINTLIST:
5955	*pMode = GL_POINTS;
5956	*pcVertices = cPrimitiveCount;
5957	break;
5958	case SVGA3D_PRIMITIVE_LINELIST:
5959	*pMode = GL_LINES;
5960	pcVertices = cPrimitiveCount 2;
5961	break;
5962	case SVGA3D_PRIMITIVE_LINESTRIP:
5963	*pMode = GL_LINE_STRIP;
5964	*pcVertices = cPrimitiveCount + 1;
5965	break;
5966	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5967	*pMode = GL_TRIANGLE_STRIP;
5968	*pcVertices = cPrimitiveCount + 2;
5969	break;
5970	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5971	*pMode = GL_TRIANGLE_FAN;
5972	*pcVertices = cPrimitiveCount + 2;
5973	break;
5974	default:
5975	return VERR_INVALID_PARAMETER;
5976	}
5977	return VINF_SUCCESS;
5978	}
5979
5980	static int vmsvga3dResetTransformMatrices(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
5981	{
5982	int rc;
5983
5984	/* Reset the view matrix (also takes the world matrix into account). */
5985	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5986	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW,
5987	pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5988	else
5989	{
5990	float matrix[16];
5991
5992	/* identity matrix if no matrix set. */
5993	memset(matrix, 0, sizeof(matrix));
5994	matrix[0] = 1.0;
5995	matrix[5] = 1.0;
5996	matrix[10] = 1.0;
5997	matrix[15] = 1.0;
5998	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5999	}
6000
6001	/* Reset the projection matrix. */
6002	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6003	{
6004	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6005	}
6006	else
6007	{
6008	float matrix[16];
6009
6010	/* identity matrix if no matrix set. */
6011	memset(matrix, 0, sizeof(matrix));
6012	matrix[0] = 1.0;
6013	matrix[5] = 1.0;
6014	matrix[10] = 1.0;
6015	matrix[15] = 1.0;
6016	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
6017	}
6018	AssertRC(rc);
6019	return rc;
6020	}
6021
6022	static int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext,
6023	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
6024	SVGA3dVertexDecl *pVertexDecl,
6025	SVGA3dVertexDivisor const *paVertexDivisors, uint32_t cInstances)
6026	{
6027	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6028	unsigned const sidVertex = pVertexDecl[0].array.surfaceId;
6029
6030	PVMSVGA3DSURFACE pVertexSurface;
6031	int rc = vmsvga3dSurfaceFromSid(pState, sidVertex, &pVertexSurface);
6032	AssertRCReturn(rc, rc);
6033
6034	Log(("vmsvga3dDrawPrimitives: vertex surface sid=%u\n", sidVertex));
6035
6036	/* Create and/or bind the vertex buffer. */
6037	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6038	{
6039	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->paMipmapLevels[0].cbSurface));
6040	PVMSVGA3DCONTEXT pSavedCtx = pContext;
6041	pContext = &pState->SharedCtx;
6042	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6043
6044	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6046	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6047
6048	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6049	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6050
6051	Assert(pVertexSurface->fDirty);
6052	/** @todo rethink usage dynamic/static */
6053	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->paMipmapLevels[0].cbSurface, pVertexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6055
6056	pVertexSurface->paMipmapLevels[0].fDirty = false;
6057	pVertexSurface->fDirty = false;
6058
6059	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6060
6061	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6062	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6063
6064	pContext = pSavedCtx;
6065	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6066	}
6067
6068	Assert(pVertexSurface->fDirty == false);
6069	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6071
6072	/* Setup the vertex declarations. */
6073	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6074	{
6075	GLint size;
6076	GLenum type;
6077	GLboolean normalized;
6078	GLuint index = iVertexDeclBase + iVertex;
6079
6080	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));
6081
6082	rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6083	AssertRCReturn(rc, rc);
6084
6085	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6086	{
6087	/* Use numbered vertex arrays when shaders are active. */
6088	pState->ext.glEnableVertexAttribArray(index);
6089	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6090	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6091	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6092	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6093
6094	GLuint divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
6095	if (pVertexDecl[iVertex].array.stride == 0)
6096	{
6097	/* Zero stride means that the attribute pointer must not be increased.
6098	* See comment about stride in vmsvga3dDrawPrimitives.
6099	*/
6100	if (!divisor)
6101	{
6102	LogRelMax(8, ("VMSVGA: zero stride array (instancing %s %d)\n", paVertexDivisors ? "on" : "off", cInstances));
6103	AssertFailed();
6104	}
6105
6106	divisor = cInstances; /* This attrib must never advance. */
6107	}
6108	pState->ext.glVertexAttribDivisor(index, divisor);
6109	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6110
6111	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6112	}
6113	else
6114	{
6115	if (pVertexDecl[iVertex].array.stride == 0)
6116	{
6117	/* Zero stride means that the attribute pointer must not be increased.
6118	* See comment about stride in vmsvga3dDrawPrimitives.
6119	*/
6120	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
6121	AssertFailed();
6122	}
6123
6124	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6125	switch (pVertexDecl[iVertex].identity.usage)
6126	{
6127	case SVGA3D_DECLUSAGE_POSITIONT:
6128	case SVGA3D_DECLUSAGE_POSITION:
6129	{
6130	glEnableClientState(GL_VERTEX_ARRAY);
6131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6132	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6133	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6134	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6135	break;
6136	}
6137	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6138	AssertFailed();
6139	break;
6140	case SVGA3D_DECLUSAGE_BLENDINDICES:
6141	AssertFailed();
6142	break;
6143	case SVGA3D_DECLUSAGE_NORMAL:
6144	glEnableClientState(GL_NORMAL_ARRAY);
6145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6146	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6147	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6148	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6149	break;
6150	case SVGA3D_DECLUSAGE_PSIZE:
6151	AssertFailed();
6152	break;
6153	case SVGA3D_DECLUSAGE_TEXCOORD:
6154	/* Specify the affected texture unit. */
6155	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6156	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6157	#else
6158	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6159	#endif
6160	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6161	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6162	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6163	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6164	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6165	break;
6166	case SVGA3D_DECLUSAGE_TANGENT:
6167	AssertFailed();
6168	break;
6169	case SVGA3D_DECLUSAGE_BINORMAL:
6170	AssertFailed();
6171	break;
6172	case SVGA3D_DECLUSAGE_TESSFACTOR:
6173	AssertFailed();
6174	break;
6175	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6176	glEnableClientState(GL_COLOR_ARRAY);
6177	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6178	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6179	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6181	break;
6182	case SVGA3D_DECLUSAGE_FOG:
6183	glEnableClientState(GL_FOG_COORD_ARRAY);
6184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6185	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6186	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6187	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6188	break;
6189	case SVGA3D_DECLUSAGE_DEPTH:
6190	AssertFailed();
6191	break;
6192	case SVGA3D_DECLUSAGE_SAMPLE:
6193	AssertFailed();
6194	break;
6195	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6196	}
6197	}
6198
6199	#ifdef LOG_ENABLED
6200	if (pVertexDecl[iVertex].array.stride == 0)
6201	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6202	#endif
6203	}
6204
6205	return VINF_SUCCESS;
6206	}
6207
6208	static int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase,
6209	uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6210	{
6211	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6212
6213	/* Clean up the vertex declarations. */
6214	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6215	{
6216	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6217	{
6218	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6219	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6220	vmsvga3dResetTransformMatrices(pThisCC, pContext);
6221	}
6222
6223	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6224	{
6225	/* Use numbered vertex arrays when shaders are active. */
6226	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6227	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6228	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6229	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6230	}
6231	else
6232	{
6233	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6234	switch (pVertexDecl[iVertex].identity.usage)
6235	{
6236	case SVGA3D_DECLUSAGE_POSITION:
6237	case SVGA3D_DECLUSAGE_POSITIONT:
6238	glDisableClientState(GL_VERTEX_ARRAY);
6239	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6240	break;
6241	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6242	break;
6243	case SVGA3D_DECLUSAGE_BLENDINDICES:
6244	break;
6245	case SVGA3D_DECLUSAGE_NORMAL:
6246	glDisableClientState(GL_NORMAL_ARRAY);
6247	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6248	break;
6249	case SVGA3D_DECLUSAGE_PSIZE:
6250	break;
6251	case SVGA3D_DECLUSAGE_TEXCOORD:
6252	/* Specify the affected texture unit. */
6253	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6254	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6255	#else
6256	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6257	#endif
6258	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6259	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6260	break;
6261	case SVGA3D_DECLUSAGE_TANGENT:
6262	break;
6263	case SVGA3D_DECLUSAGE_BINORMAL:
6264	break;
6265	case SVGA3D_DECLUSAGE_TESSFACTOR:
6266	break;
6267	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6268	glDisableClientState(GL_COLOR_ARRAY);
6269	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6270	break;
6271	case SVGA3D_DECLUSAGE_FOG:
6272	glDisableClientState(GL_FOG_COORD_ARRAY);
6273	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6274	break;
6275	case SVGA3D_DECLUSAGE_DEPTH:
6276	break;
6277	case SVGA3D_DECLUSAGE_SAMPLE:
6278	break;
6279	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6280	}
6281	}
6282	}
6283	/* Unbind the vertex buffer after usage. */
6284	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6285	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6286	return VINF_SUCCESS;
6287	}
6288
6289	int vmsvga3dDrawPrimitives(PVGASTATECC pThisCC, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6290	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6291	SVGA3dVertexDivisor *pVertexDivisor)
6292	{
6293	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6294	AssertReturn(pState, VERR_INTERNAL_ERROR);
6295	uint32_t iCurrentVertex;
6296
6297	Log(("vmsvga3dDrawPrimitives cid=%u numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6298
6299	/* Caller already check these, but it cannot hurt to check again... */
6300	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6301	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6302	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6303
6304	if (!cVertexDivisor)
6305	pVertexDivisor = NULL; /* Be sure. */
6306
6307	PVMSVGA3DCONTEXT pContext;
6308	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6309	AssertRCReturn(rc, rc);
6310
6311	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6312
6313	/* Check for pretransformed vertex declarations. */
6314	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6315	{
6316	switch (pVertexDecl[iVertex].identity.usage)
6317	{
6318	case SVGA3D_DECLUSAGE_POSITIONT:
6319	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6320	RT_FALL_THRU();
6321	case SVGA3D_DECLUSAGE_POSITION:
6322	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6323	pContext->state.RectViewPort.h,
6324	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6325	break;
6326	default: /* Shut up MSC. */ break;
6327	}
6328	}
6329
6330	/*
6331	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6332	* - D3D and VMSVGA: "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6333	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6334	* VMSVGA uses the D3D semantics.
6335	*
6336	* In order to tell OpenGL to reuse the zero stride attributes for each vertex
6337	* such attributes could be declared as instance data, then OpenGL applies them once
6338	* for all vertices of the one drawn instance.
6339	*
6340	* If instancing is already used (cVertexDivisor > 0), then the code does nothing and assumes that
6341	* all instance data is already correctly marked as such.
6342	*
6343	* If instancing is not requisted (cVertexDivisor == 0), then the code creates a description for
6344	* one instance where all arrays with zero stride are marked as instance data, and all arrays
6345	* with non-zero stride as indexed data.
6346	*/
6347	bool fZeroStrideArray = false;
6348	if (cVertexDivisor == 0)
6349	{
6350	unsigned i;
6351	for (i = 0; i < numVertexDecls; ++i)
6352	{
6353	if (pVertexDecl[i].array.stride == 0)
6354	{
6355	fZeroStrideArray = true;
6356	break;
6357	}
6358	}
6359
6360	if (fZeroStrideArray)
6361	{
6362	cVertexDivisor = numVertexDecls;
6363	pVertexDivisor = (SVGA3dVertexDivisor )RTMemTmpAlloc(sizeof(SVGA3dVertexDivisor) cVertexDivisor);
6364	AssertPtrReturn(pVertexDivisor, VERR_NO_MEMORY);
6365
6366	for (i = 0; i < numVertexDecls; ++i)
6367	{
6368	pVertexDivisor[i].s.count = 1;
6369	if (pVertexDecl[i].array.stride == 0)
6370	{
6371	pVertexDivisor[i].s.instanceData = 1;
6372	}
6373	else
6374	{
6375	pVertexDivisor[i].s.indexedData = 1;
6376	}
6377	}
6378	}
6379	}
6380
6381	/* Try to figure out if instancing is used.
6382	* Support simple instancing case with one set of indexed data and one set per-instance data.
6383	*/
6384	uint32_t cInstances = 0;
6385	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6386	{
6387	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6388	{
6389	if (cInstances == 0)
6390	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6391	else
6392	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6393	}
6394	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6395	{
6396	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6397	}
6398	}
6399
6400	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6401	if (pContext->pShaderContext)
6402	{
6403	uint32_t rtHeight = 0;
6404
6405	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6406	{
6407	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6408	rtHeight = pRenderTarget->paMipmapLevels[0].mipmapSize.height;
6409	}
6410
6411	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6412	}
6413
6414	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6415	iCurrentVertex = 0;
6416	while (iCurrentVertex < numVertexDecls)
6417	{
6418	uint32_t sidVertex = SVGA_ID_INVALID;
6419	uint32_t iVertex;
6420
6421	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6422	{
6423	if ( sidVertex != SVGA_ID_INVALID
6424	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6425	)
6426	break;
6427	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6428	}
6429
6430	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThisCC, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6431	&pVertexDecl[iCurrentVertex], pVertexDivisor, cInstances);
6432	AssertRCReturn(rc, rc);
6433
6434	iCurrentVertex = iVertex;
6435	}
6436
6437	/* Now draw the primitives. */
6438	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6439	{
6440	GLenum modeDraw;
6441	unsigned const sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6442	PVMSVGA3DSURFACE pIndexSurface = NULL;
6443	unsigned cVertices;
6444
6445	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6446	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6447	if (RT_FAILURE(rc))
6448	{
6449	AssertRC(rc);
6450	goto internal_error;
6451	}
6452
6453	if (sidIndex != SVGA3D_INVALID_ID)
6454	{
6455	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6456
6457	rc = vmsvga3dSurfaceFromSid(pState, sidIndex, &pIndexSurface);
6458	if (RT_FAILURE(rc))
6459	{
6460	AssertRC(rc);
6461	goto internal_error;
6462	}
6463
6464	Log(("vmsvga3dDrawPrimitives: index surface sid=%u\n", sidIndex));
6465
6466	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6467	{
6468	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->paMipmapLevels[0].cbSurface));
6469	pContext = &pState->SharedCtx;
6470	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6471
6472	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6473	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6474	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6475
6476	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6478
6479	Assert(pIndexSurface->fDirty);
6480
6481	/** @todo rethink usage dynamic/static */
6482	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->paMipmapLevels[0].cbSurface, pIndexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6483	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6484
6485	pIndexSurface->paMipmapLevels[0].fDirty = false;
6486	pIndexSurface->fDirty = false;
6487
6488	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6489
6490	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6491	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6492
6493	pContext = pState->papContexts[cid];
6494	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6495	}
6496	Assert(pIndexSurface->fDirty == false);
6497
6498	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6500	}
6501
6502	if (!pIndexSurface)
6503	{
6504	/* Render without an index buffer */
6505	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
6506	if (cInstances == 0)
6507	{
6508	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6509	}
6510	else
6511	{
6512	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6513	}
6514	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6515	}
6516	else
6517	{
6518	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6519
6520	GLenum indexType;
6521	switch (pRange[iPrimitive].indexWidth)
6522	{
6523	case 1: indexType = GL_UNSIGNED_BYTE; break;
6524	case 2: indexType = GL_UNSIGNED_SHORT; break;
6525	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
6526	RT_FALL_THROUGH();
6527	case 4: indexType = GL_UNSIGNED_INT; break;
6528	}
6529
6530	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));
6531	if (cInstances == 0)
6532	{
6533	/* Render with an index buffer */
6534	if (pRange[iPrimitive].indexBias == 0)
6535	glDrawElements(modeDraw,
6536	cVertices,
6537	indexType,
6538	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6539	else
6540	pState->ext.glDrawElementsBaseVertex(modeDraw,
6541	cVertices,
6542	indexType,
6543	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6544	pRange[iPrimitive].indexBias); /* basevertex */
6545	}
6546	else
6547	{
6548	/* Render with an index buffer */
6549	if (pRange[iPrimitive].indexBias == 0)
6550	pState->ext.glDrawElementsInstanced(modeDraw,
6551	cVertices,
6552	indexType,
6553	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6554	cInstances);
6555	else
6556	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6557	cVertices,
6558	indexType,
6559	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6560	cInstances,
6561	pRange[iPrimitive].indexBias); /* basevertex */
6562	}
6563	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6564
6565	/* Unbind the index buffer after usage. */
6566	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6567	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6568	}
6569	}
6570
6571	internal_error:
6572
6573	/* Deactivate the vertex declarations. */
6574	iCurrentVertex = 0;
6575	while (iCurrentVertex < numVertexDecls)
6576	{
6577	uint32_t sidVertex = SVGA_ID_INVALID;
6578	uint32_t iVertex;
6579
6580	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6581	{
6582	if ( sidVertex != SVGA_ID_INVALID
6583	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6584	)
6585	break;
6586	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6587	}
6588
6589	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThisCC, pContext, iCurrentVertex,
6590	iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6591	AssertRCReturn(rc, rc);
6592
6593	iCurrentVertex = iVertex;
6594	}
6595
6596	if (fZeroStrideArray)
6597	{
6598	RTMemTmpFree(pVertexDivisor);
6599	pVertexDivisor = NULL;
6600	}
6601
6602	#ifdef DEBUG
6603	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6604	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6605	{
6606	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6607	{
6608	PVMSVGA3DSURFACE pTexture;
6609	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6610	AssertContinue(RT_SUCCESS(rc2));
6611
6612	GLint activeTextureUnit = 0;
6613	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6614	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6615
6616	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6617	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6618
6619	GLint activeTexture = 0;
6620	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6621	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6622
6623	pState->ext.glActiveTexture(activeTextureUnit);
6624	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6625
6626	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6627	("%d vs %d unit %d (active unit %d) sid=%u\n", pTexture->oglId.texture, activeTexture, i,
6628	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6629	}
6630	}
6631	#endif
6632
6633	#if 0
6634	/* Dump render target to a bitmap. */
6635	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6636	{
6637	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6638	PVMSVGA3DSURFACE pSurface;
6639	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6640	if (RT_SUCCESS(rc2))
6641	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
6642	# if 0
6643	/* Stage 0 texture. */
6644	if (pContext->aSidActiveTextures[0] != SVGA3D_INVALID_ID)
6645	{
6646	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->aSidActiveTextures[0]);
6647	rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[0], &pSurface);
6648	if (RT_SUCCESS(rc2))
6649	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post-tx");
6650	}
6651	# endif
6652	}
6653	#endif
6654
6655	return rc;
6656	}
6657
6658
6659	int vmsvga3dShaderDefine(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6660	{
6661	PVMSVGA3DSHADER pShader;
6662	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6663	AssertReturn(pState, VERR_NO_MEMORY);
6664
6665	Log(("vmsvga3dShaderDefine cid=%u shid=%d type=%s cbData=0x%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6666	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6667
6668	PVMSVGA3DCONTEXT pContext;
6669	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6670	AssertRCReturn(rc, rc);
6671
6672	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6673
6674	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6675	if (type == SVGA3D_SHADERTYPE_VS)
6676	{
6677	if (shid >= pContext->cVertexShaders)
6678	{
6679	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6680	AssertReturn(pvNew, VERR_NO_MEMORY);
6681	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6682	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6683	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6684	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6685	pContext->cVertexShaders = shid + 1;
6686	}
6687	/* If one already exists with this id, then destroy it now. */
6688	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6689	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paVertexShader[shid].type);
6690
6691	pShader = &pContext->paVertexShader[shid];
6692	}
6693	else
6694	{
6695	Assert(type == SVGA3D_SHADERTYPE_PS);
6696	if (shid >= pContext->cPixelShaders)
6697	{
6698	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6699	AssertReturn(pvNew, VERR_NO_MEMORY);
6700	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6701	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6702	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6703	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6704	pContext->cPixelShaders = shid + 1;
6705	}
6706	/* If one already exists with this id, then destroy it now. */
6707	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6708	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paPixelShader[shid].type);
6709
6710	pShader = &pContext->paPixelShader[shid];
6711	}
6712
6713	memset(pShader, 0, sizeof(*pShader));
6714	pShader->id = shid;
6715	pShader->cid = cid;
6716	pShader->type = type;
6717	pShader->cbData = cbData;
6718	pShader->pShaderProgram = RTMemAllocZ(cbData);
6719	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6720	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6721
6722	#ifdef DUMP_SHADER_DISASSEMBLY
6723	LPD3DXBUFFER pDisassembly;
6724	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6725	if (hr == D3D_OK)
6726	{
6727	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6728	pDisassembly->Release();
6729	}
6730	#endif
6731
6732	switch (type)
6733	{
6734	case SVGA3D_SHADERTYPE_VS:
6735	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6736	AssertRC(rc);
6737	break;
6738
6739	case SVGA3D_SHADERTYPE_PS:
6740	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6741	AssertRC(rc);
6742	break;
6743
6744	default:
6745	AssertFailedReturn(VERR_INVALID_PARAMETER);
6746	}
6747	if (rc != VINF_SUCCESS)
6748	{
6749	RTMemFree(pShader->pShaderProgram);
6750	memset(pShader, 0, sizeof(*pShader));
6751	pShader->id = SVGA3D_INVALID_ID;
6752	}
6753
6754	return rc;
6755	}
6756
6757	int vmsvga3dShaderDestroy(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6758	{
6759	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6760	AssertReturn(pState, VERR_NO_MEMORY);
6761	PVMSVGA3DSHADER pShader = NULL;
6762
6763	Log(("vmsvga3dShaderDestroy cid=%u shid=%d type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6764
6765	PVMSVGA3DCONTEXT pContext;
6766	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6767	AssertRCReturn(rc, rc);
6768
6769	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6770
6771	if (type == SVGA3D_SHADERTYPE_VS)
6772	{
6773	if ( shid < pContext->cVertexShaders
6774	&& pContext->paVertexShader[shid].id == shid)
6775	{
6776	pShader = &pContext->paVertexShader[shid];
6777	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6778	AssertRC(rc);
6779	}
6780	}
6781	else
6782	{
6783	Assert(type == SVGA3D_SHADERTYPE_PS);
6784	if ( shid < pContext->cPixelShaders
6785	&& pContext->paPixelShader[shid].id == shid)
6786	{
6787	pShader = &pContext->paPixelShader[shid];
6788	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6789	AssertRC(rc);
6790	}
6791	}
6792
6793	if (pShader)
6794	{
6795	if (pShader->pShaderProgram)
6796	RTMemFree(pShader->pShaderProgram);
6797	memset(pShader, 0, sizeof(*pShader));
6798	pShader->id = SVGA3D_INVALID_ID;
6799	}
6800	else
6801	AssertFailedReturn(VERR_INVALID_PARAMETER);
6802
6803	return VINF_SUCCESS;
6804	}
6805
6806	int vmsvga3dShaderSet(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6807	{
6808	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6809	AssertReturn(pState, VERR_NO_MEMORY);
6810	int rc;
6811
6812	Log(("vmsvga3dShaderSet cid=%u type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6813
6814	if (!pContext)
6815	{
6816	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6817	AssertRCReturn(rc, rc);
6818	}
6819
6820	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6821
6822	if (type == SVGA3D_SHADERTYPE_VS)
6823	{
6824	/* Save for vm state save/restore. */
6825	pContext->state.shidVertex = shid;
6826	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6827
6828	if ( shid < pContext->cVertexShaders
6829	&& pContext->paVertexShader[shid].id == shid)
6830	{
6831	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6832	Assert(type == pShader->type);
6833
6834	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6835	AssertRCReturn(rc, rc);
6836	}
6837	else
6838	if (shid == SVGA_ID_INVALID)
6839	{
6840	/* Unselect shader. */
6841	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6842	AssertRCReturn(rc, rc);
6843	}
6844	else
6845	AssertFailedReturn(VERR_INVALID_PARAMETER);
6846	}
6847	else
6848	{
6849	/* Save for vm state save/restore. */
6850	pContext->state.shidPixel = shid;
6851	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6852
6853	Assert(type == SVGA3D_SHADERTYPE_PS);
6854	if ( shid < pContext->cPixelShaders
6855	&& pContext->paPixelShader[shid].id == shid)
6856	{
6857	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6858	Assert(type == pShader->type);
6859
6860	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6861	AssertRCReturn(rc, rc);
6862	}
6863	else
6864	if (shid == SVGA_ID_INVALID)
6865	{
6866	/* Unselect shader. */
6867	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6868	AssertRCReturn(rc, rc);
6869	}
6870	else
6871	AssertFailedReturn(VERR_INVALID_PARAMETER);
6872	}
6873
6874	return VINF_SUCCESS;
6875	}
6876
6877	int vmsvga3dShaderSetConst(PVGASTATECC pThisCC, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6878	{
6879	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6880	AssertReturn(pState, VERR_NO_MEMORY);
6881
6882	Log(("vmsvga3dShaderSetConst cid=%u reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6883
6884	PVMSVGA3DCONTEXT pContext;
6885	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6886	AssertRCReturn(rc, rc);
6887
6888	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6889
6890	for (uint32_t i = 0; i < cRegisters; i++)
6891	{
6892	#ifdef LOG_ENABLED
6893	switch (ctype)
6894	{
6895	case SVGA3D_CONST_TYPE_FLOAT:
6896	{
6897	float pValuesF = (float )pValues;
6898	Log(("ConstantF %d: value=" FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR "\n",
6899	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])));
6900	break;
6901	}
6902
6903	case SVGA3D_CONST_TYPE_INT:
6904	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6905	break;
6906
6907	case SVGA3D_CONST_TYPE_BOOL:
6908	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6909	break;
6910	}
6911	#endif
6912	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6913	}
6914
6915	switch (type)
6916	{
6917	case SVGA3D_SHADERTYPE_VS:
6918	switch (ctype)
6919	{
6920	case SVGA3D_CONST_TYPE_FLOAT:
6921	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6922	break;
6923
6924	case SVGA3D_CONST_TYPE_INT:
6925	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6926	break;
6927
6928	case SVGA3D_CONST_TYPE_BOOL:
6929	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6930	break;
6931
6932	default:
6933	AssertFailedReturn(VERR_INVALID_PARAMETER);
6934	}
6935	AssertRCReturn(rc, rc);
6936	break;
6937
6938	case SVGA3D_SHADERTYPE_PS:
6939	switch (ctype)
6940	{
6941	case SVGA3D_CONST_TYPE_FLOAT:
6942	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6943	break;
6944
6945	case SVGA3D_CONST_TYPE_INT:
6946	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6947	break;
6948
6949	case SVGA3D_CONST_TYPE_BOOL:
6950	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6951	break;
6952
6953	default:
6954	AssertFailedReturn(VERR_INVALID_PARAMETER);
6955	}
6956	AssertRCReturn(rc, rc);
6957	break;
6958
6959	default:
6960	AssertFailedReturn(VERR_INVALID_PARAMETER);
6961	}
6962
6963	return VINF_SUCCESS;
6964	}
6965
6966	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6967	{
6968	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6969	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6970
6971	GLuint idQuery = 0;
6972	pState->ext.glGenQueries(1, &idQuery);
6973	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6974	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6975	pContext->occlusion.idQuery = idQuery;
6976	return VINF_SUCCESS;
6977	}
6978
6979	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6980	{
6981	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6982	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6983
6984	if (pContext->occlusion.idQuery)
6985	{
6986	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6987	}
6988	return VINF_SUCCESS;
6989	}
6990
6991	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6992	{
6993	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6994	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6995
6996	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6997	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6998	return VINF_SUCCESS;
6999	}
7000
7001	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7002	{
7003	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
7004	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7005
7006	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
7007	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7008	return VINF_SUCCESS;
7009	}
7010
7011	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
7012	{
7013	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
7014	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7015
7016	GLuint pixels = 0;
7017	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
7018	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7019
7020	*pu32Pixels = (uint32_t)pixels;
7021	return VINF_SUCCESS;
7022	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 82303

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