DevVGA-SVGA3d-ogl.cpp@ 73519

Last change on this file since 73519 was 73519, checked in by vboxsync, 6 years ago
DevVGA-SVGA3d-ogl.cpp: formats fixes.
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 73519 2018-08-06 10:52:33Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS MyWinGetProcAddress
68	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
69	{
70	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
71	PROC p = wglGetProcAddress(pszSymbol);
72	if (RT_VALID_PTR(p))
73	return p;
74	return 0;
75	}
76	#elif defined(RT_OS_DARWIN)
77	# include <dlfcn.h>
78	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
79	/** Resolves an OpenGL symbol. */
80	static void MyNSGLGetProcAddress(const char pszSymbol)
81	{
82	/* Another copy in shaderapi.c. */
83	static void *s_pvImage = NULL;
84	if (s_pvImage == NULL)
85	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
86	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
87	}
88
89	#else
90	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
91	#endif
92
93	/* Invert y-coordinate for OpenGL's bottom left origin. */
94	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
95	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
96
97	/* Enable to render the result of DrawPrimitive in a seperate window. */
98	//#define DEBUG_GFX_WINDOW
99
100
101	/**
102	* Macro for doing something and then checking for errors during initialization.
103	* Uses AssertLogRelMsg.
104	*/
105	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
106	do \
107	{ \
108	a_Expr; \
109	GLenum iGlError = glGetError(); \
110	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
111	} while (0)
112
113	/**
114	* Macro for doing something and then checking for errors during initialization,
115	* doing the same in the other context when enabled.
116	*
117	* This will try both profiles in dual profile builds. Caller must be in the
118	* default context.
119	*
120	* Uses AssertLogRelMsg to indicate trouble.
121	*/
122	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
123	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
124	do \
125	{ \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError = glGetError(); \
129	if (iGlError != GL_NO_ERROR) \
130	{ \
131	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
132	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
133	a_Expr; \
134	GLenum iGlError2 = glGetError(); \
135	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
136	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
137	} \
138	} while (0)
139	#else
140	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
141	#endif
142
143
144	/*********************************************************************************************************************************
145	* Global Variables *
146	*********************************************************************************************************************************/
147	/* Define the default light parameters as specified by MSDN. */
148	/** @todo move out; fetched from Wine */
149	const SVGA3dLightData vmsvga3d_default_light =
150	{
151	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
152	false, /* inWorldSpace */
153	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
154	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
156	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
157	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
158	0.0f, /* range */
159	0.0f, /* falloff */
160	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
161	0.0f, /* theta */
162	0.0f /* phi */
163	};
164
165
166	/*********************************************************************************************************************************
167	* Internal Functions *
168	*********************************************************************************************************************************/
169	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
170	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
171
172	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
173	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
174
175
176	/**
177	* Checks if the given OpenGL extension is supported.
178	*
179	* @returns true if supported, false if not.
180	* @param pState The VMSVGA3d state.
181	* @param rsMinGLVersion The OpenGL version that introduced this feature
182	* into the core.
183	* @param pszWantedExtension The name of the OpenGL extension we want padded
184	* with one space at each end.
185	* @remarks Init time only.
186	*/
187	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
188	{
189	RT_NOREF(rsMinGLVersion);
190	/* check padding. */
191	Assert(pszWantedExtension[0] == ' ');
192	Assert(pszWantedExtension[1] != ' ');
193	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
194
195	/* Look it up. */
196	bool fRet = false;
197	if (strstr(pState->pszExtensions, pszWantedExtension))
198	fRet = true;
199
200	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
201	#ifdef RT_OS_DARWIN
202	AssertMsg( rsMinGLVersion == 0.0
203	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
204	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
205	("%s actual:%d min:%d fRet=%d\n",
206	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
207	#else
208	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
209	("%s actual:%d min:%d fRet=%d\n",
210	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
211	#endif
212	return fRet;
213	}
214
215
216	/**
217	* Outputs GL_EXTENSIONS list to the release log.
218	*/
219	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
220	{
221	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
222	bool fBuffered = RTLogRelSetBuffering(true);
223
224	/*
225	* Determin the column widths first.
226	*/
227	size_t acchWidths[4] = { 1, 1, 1, 1 };
228	uint32_t i;
229	const char *psz = pszExtensions;
230	for (i = 0; ; i++)
231	{
232	while (*psz == ' ')
233	psz++;
234	if (!*psz)
235	break;
236
237	const char *pszEnd = strchr(psz, ' ');
238	AssertBreak(pszEnd);
239	size_t cch = pszEnd - psz;
240
241	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
242	if (acchWidths[iColumn] < cch)
243	acchWidths[iColumn] = cch;
244
245	psz = pszEnd;
246	}
247
248	/*
249	* Output it.
250	*/
251	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
252	psz = pszExtensions;
253	for (i = 0; ; i++)
254	{
255	while (*psz == ' ')
256	psz++;
257	if (!*psz)
258	break;
259
260	const char *pszEnd = strchr(psz, ' ');
261	AssertBreak(pszEnd);
262	size_t cch = pszEnd - psz;
263
264	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
265	if (iColumn == 0)
266	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
267	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
268	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
269	else
270	LogRel((" %.*s", cch, psz));
271
272	psz = pszEnd;
273	}
274
275	RTLogRelSetBuffering(fBuffered);
276	LogRel(("\n"));
277	}
278
279	/**
280	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
281	* @a ppszExtensions.
282	*
283	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
284	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
285	* @param fGLProfileVersion The OpenGL profile version.
286	*/
287	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
288	{
289	int rc;
290	*ppszExtensions = NULL;
291
292	/*
293	* Try the old glGetString interface first.
294	*/
295	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
296	if (pszExtensions)
297	{
298	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
299	AssertLogRelRCReturn(rc, rc);
300	}
301	else
302	{
303	/*
304	* The new interface where each extension string is retrieved separately.
305	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
306	* the above GL_EXTENSIONS error lingers on darwin. sucks.
307	*/
308	#ifndef GL_NUM_EXTENSIONS
309	# define GL_NUM_EXTENSIONS 0x821D
310	#endif
311	GLint cExtensions = 1024;
312	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
313	Assert(cExtensions != 1024);
314
315	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
316	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
317
318	rc = RTStrAAppend(ppszExtensions, " ");
319	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
320	{
321	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
322	if (pszExt)
323	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
324	}
325	AssertRCReturn(rc, rc);
326	}
327
328	#if 1
329	/*
330	* Add extensions promoted into the core OpenGL profile.
331	*/
332	static const struct
333	{
334	float fGLVersion;
335	const char *pszzExtensions;
336	} s_aPromotedExtensions[] =
337	{
338	{
339	1.1f,
340	" GL_EXT_vertex_array \0"
341	" GL_EXT_polygon_offset \0"
342	" GL_EXT_blend_logic_op \0"
343	" GL_EXT_texture \0"
344	" GL_EXT_copy_texture \0"
345	" GL_EXT_subtexture \0"
346	" GL_EXT_texture_object \0"
347	" GL_ARB_framebuffer_object \0"
348	" GL_ARB_map_buffer_range \0"
349	" GL_ARB_vertex_array_object \0"
350	"\0"
351	},
352	{
353	1.2f,
354	" EXT_texture3D \0"
355	" EXT_bgra \0"
356	" EXT_packed_pixels \0"
357	" EXT_rescale_normal \0"
358	" EXT_separate_specular_color \0"
359	" SGIS_texture_edge_clamp \0"
360	" SGIS_texture_lod \0"
361	" EXT_draw_range_elements \0"
362	"\0"
363	},
364	{
365	1.3f,
366	" GL_ARB_texture_compression \0"
367	" GL_ARB_texture_cube_map \0"
368	" GL_ARB_multisample \0"
369	" GL_ARB_multitexture \0"
370	" GL_ARB_texture_env_add \0"
371	" GL_ARB_texture_env_combine \0"
372	" GL_ARB_texture_env_dot3 \0"
373	" GL_ARB_texture_border_clamp \0"
374	" GL_ARB_transpose_matrix \0"
375	"\0"
376	},
377	{
378	1.5f,
379	" GL_SGIS_generate_mipmap \0"
380	/" GL_NV_blend_equare \0"/
381	" GL_ARB_depth_texture \0"
382	" GL_ARB_shadow \0"
383	" GL_EXT_fog_coord \0"
384	" GL_EXT_multi_draw_arrays \0"
385	" GL_ARB_point_parameters \0"
386	" GL_EXT_secondary_color \0"
387	" GL_EXT_blend_func_separate \0"
388	" GL_EXT_stencil_wrap \0"
389	" GL_ARB_texture_env_crossbar \0"
390	" GL_EXT_texture_lod_bias \0"
391	" GL_ARB_texture_mirrored_repeat \0"
392	" GL_ARB_window_pos \0"
393	"\0"
394	},
395	{
396	1.6f,
397	" GL_ARB_vertex_buffer_object \0"
398	" GL_ARB_occlusion_query \0"
399	" GL_EXT_shadow_funcs \0"
400	},
401	{
402	2.0f,
403	" GL_ARB_shader_objects \0" /??/
404	" GL_ARB_vertex_shader \0" /??/
405	" GL_ARB_fragment_shader \0" /??/
406	" GL_ARB_shading_language_100 \0" /??/
407	" GL_ARB_draw_buffers \0"
408	" GL_ARB_texture_non_power_of_two \0"
409	" GL_ARB_point_sprite \0"
410	" GL_ATI_separate_stencil \0"
411	" GL_EXT_stencil_two_side \0"
412	"\0"
413	},
414	{
415	2.1f,
416	" GL_ARB_pixel_buffer_object \0"
417	" GL_EXT_texture_sRGB \0"
418	"\0"
419	},
420	{
421	3.0f,
422	" GL_ARB_framebuffer_object \0"
423	" GL_ARB_map_buffer_range \0"
424	" GL_ARB_vertex_array_object \0"
425	"\0"
426	},
427	{
428	3.1f,
429	" GL_ARB_copy_buffer \0"
430	" GL_ARB_uniform_buffer_object \0"
431	"\0"
432	},
433	{
434	3.2f,
435	" GL_ARB_vertex_array_bgra \0"
436	" GL_ARB_draw_elements_base_vertex \0"
437	" GL_ARB_fragment_coord_conventions \0"
438	" GL_ARB_provoking_vertex \0"
439	" GL_ARB_seamless_cube_map \0"
440	" GL_ARB_texture_multisample \0"
441	" GL_ARB_depth_clamp \0"
442	" GL_ARB_sync \0"
443	" GL_ARB_geometry_shader4 \0" /??/
444	"\0"
445	},
446	{
447	3.3f,
448	" GL_ARB_blend_func_extended \0"
449	" GL_ARB_sampler_objects \0"
450	" GL_ARB_explicit_attrib_location \0"
451	" GL_ARB_occlusion_query2 \0"
452	" GL_ARB_shader_bit_encoding \0"
453	" GL_ARB_texture_rgb10_a2ui \0"
454	" GL_ARB_texture_swizzle \0"
455	" GL_ARB_timer_query \0"
456	" GL_ARB_vertex_type_2_10_10_10_rev \0"
457	"\0"
458	},
459	{
460	4.0f,
461	" GL_ARB_texture_query_lod \0"
462	" GL_ARB_draw_indirect \0"
463	" GL_ARB_gpu_shader5 \0"
464	" GL_ARB_gpu_shader_fp64 \0"
465	" GL_ARB_shader_subroutine \0"
466	" GL_ARB_tessellation_shader \0"
467	" GL_ARB_texture_buffer_object_rgb32 \0"
468	" GL_ARB_texture_cube_map_array \0"
469	" GL_ARB_texture_gather \0"
470	" GL_ARB_transform_feedback2 \0"
471	" GL_ARB_transform_feedback3 \0"
472	"\0"
473	},
474	{
475	4.1f,
476	" GL_ARB_ES2_compatibility \0"
477	" GL_ARB_get_program_binary \0"
478	" GL_ARB_separate_shader_objects \0"
479	" GL_ARB_shader_precision \0"
480	" GL_ARB_vertex_attrib_64bit \0"
481	" GL_ARB_viewport_array \0"
482	"\0"
483	}
484	};
485
486	uint32_t cPromoted = 0;
487	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
488	{
489	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
490	while (*pszExt)
491	{
492	# ifdef VBOX_STRICT
493	size_t cchExt = strlen(pszExt);
494	Assert(cchExt > 3);
495	Assert(pszExt[0] == ' ');
496	Assert(pszExt[1] != ' ');
497	Assert(pszExt[cchExt - 2] != ' ');
498	Assert(pszExt[cchExt - 1] == ' ');
499	# endif
500
501	if (strstr(*ppszExtensions, pszExt) == NULL)
502	{
503	if (cPromoted++ == 0)
504	{
505	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
506	AssertRCReturn(rc, rc);
507	}
508
509	rc = RTStrAAppend(ppszExtensions, pszExt);
510	AssertRCReturn(rc, rc);
511	}
512
513	pszExt = strchr(pszExt, '\0') + 1;
514	}
515	}
516	#endif
517
518	return VINF_SUCCESS;
519	}
520
521	/** Check whether this is an Intel GL driver.
522	*
523	* @returns true if this seems to be some Intel graphics.
524	*/
525	static bool vmsvga3dIsVendorIntel(void)
526	{
527	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
528	}
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
532	*/
533	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
534	{
535	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
538	#else
539	NOREF(pThis);
540	NOREF(fOtherProfile);
541	#endif
542	}
543
544
545	/**
546	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
547	*/
548	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
549	char *pszBuf, size_t cbBuf, bool fOtherProfile)
550	{
551	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
552	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
553	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
554	while (*pszCur == ' ')
555	pszCur++;
556	if (!*pszCur)
557	return false;
558
559	const char *pszEnd = strchr(pszCur, ' ');
560	AssertReturn(pszEnd, false);
561	size_t cch = pszEnd - pszCur;
562	if (cch < cbBuf)
563	{
564	memcpy(pszBuf, pszCur, cch);
565	pszBuf[cch] = '\0';
566	}
567	else if (cbBuf > 0)
568	{
569	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
570	pszBuf[cbBuf - 1] = '\0';
571	}
572
573	ppvEnumCtx = (void )pszEnd;
574	return true;
575	}
576
577
578	/**
579	* Initializes the VMSVGA3D state during VGA device construction.
580	*
581	* Failure are generally not fatal, 3D support will just be disabled.
582	*
583	* @returns VBox status code.
584	* @param pThis The VGA device state where svga.p3dState will be modified.
585	*/
586	int vmsvga3dInit(PVGASTATE pThis)
587	{
588	AssertCompile(GL_TRUE == 1);
589	AssertCompile(GL_FALSE == 0);
590
591	/*
592	* Load and resolve imports from the external shared libraries.
593	*/
594	RTERRINFOSTATIC ErrInfo;
595	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
596	if (RT_FAILURE(rc))
597	{
598	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
599	return rc;
600	}
601	#ifdef RT_OS_DARWIN
602	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
603	if (RT_FAILURE(rc))
604	{
605	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
606	return rc;
607	}
608	#endif
609
610	/*
611	* Allocate the state.
612	*/
613	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
614	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
615
616	#ifdef RT_OS_WINDOWS
617	/* Create event semaphore and async IO thread. */
618	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
619	rc = RTSemEventCreate(&pState->WndRequestSem);
620	if (RT_SUCCESS(rc))
621	{
622	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
623	"VMSVGA3DWND");
624	if (RT_SUCCESS(rc))
625	return VINF_SUCCESS;
626
627	/* bail out. */
628	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
629	RTSemEventDestroy(pState->WndRequestSem);
630	}
631	else
632	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
633	RTMemFree(pThis->svga.p3dState);
634	pThis->svga.p3dState = NULL;
635	return rc;
636	#else
637	return VINF_SUCCESS;
638	#endif
639	}
640
641	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
642	{
643	/* A strict approach to get a proc address as recommended by Khronos:
644	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
645	* - "If the function is an extension, we need to check to see if the extension is supported."
646	*/
647
648	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
649	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
650	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
651	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
652	} while(0)
653
654	/* Get an optional function address. LogRel on failure. */
655	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
656	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
657	if (!pState->ext.ProcName) \
658	{ \
659	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
660	AssertFailed(); \
661	} \
662	} while(0)
663
664	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
665	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
666	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
667	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
668	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
669	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
670	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
671	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
672	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
673	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
674	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
675	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
676	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
677	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
678	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
679	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
680	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
681	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
682	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
683	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
684	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
685	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
686	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
687	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
688	/* glGetProgramivARB determines implementation limits for the program
689	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
690	* It differs from glGetProgramiv, which returns a parameter from a program object.
691	*/
692	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
693	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
694	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
695	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
696	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
697	#endif
698	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
699	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
700	#endif
701
702	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
703	if ( pState->rsGLVersion >= 3.0f
704	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
705	{
706	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
707	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
708	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
709	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
710	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
711	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
712	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
713	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
714	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
715	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
716	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
717	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
718	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
719	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
720	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
721	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
722	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
723	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
724	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
725	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
726	}
727
728	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
729	if (pState->rsGLVersion >= 3.1f)
730	{
731	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
732	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
733	}
734	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
735	{
736	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
737	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
738	}
739	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
740	{
741	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
742	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
743	}
744
745	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
746	if ( pState->rsGLVersion >= 3.2f
747	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
748	{
749	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
750	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
751	}
752
753	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
754	if ( pState->rsGLVersion >= 3.2f
755	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
756	{
757	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
758	}
759
760	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
761	if (pState->rsGLVersion >= 3.3f)
762	{
763	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
764	}
765	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
766	{
767	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
768	}
769
770	#undef GLGETPROCOPT_
771	#undef GLGETPROC_
772
773	return VINF_SUCCESS;
774	}
775
776
777	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
778	int vmsvga3dPowerOn(PVGASTATE pThis)
779	{
780	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
781	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
782	PVMSVGA3DCONTEXT pContext;
783	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
784	PVMSVGA3DCONTEXT pOtherCtx;
785	#endif
786	int rc;
787
788	if (pState->rsGLVersion != 0.0)
789	return VINF_SUCCESS; /* already initialized (load state) */
790
791	/*
792	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
793	*/
794	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
795	AssertRCReturn(rc, rc);
796
797	pContext = pState->papContexts[1];
798	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
799
800	LogRel(("VMSVGA3d: OpenGL version: %s\n"
801	"VMSVGA3d: OpenGL Vendor: %s\n"
802	"VMSVGA3d: OpenGL Renderer: %s\n"
803	"VMSVGA3d: OpenGL shader language version: %s\n",
804	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
805	glGetString(GL_SHADING_LANGUAGE_VERSION)));
806
807	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
808	AssertRCReturn(rc, rc);
809	vmsvga3dLogRelExtensions("", pState->pszExtensions);
810
811	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
812
813
814	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
815	/*
816	* Get the extension list for the alternative profile so we can better
817	* figure out the shader model and stuff.
818	*/
819	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
820	AssertLogRelRCReturn(rc, rc);
821	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
822
823	pOtherCtx = pState->papContexts[2];
824	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
825
826	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
827	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
828	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
829	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
830	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
831	glGetString(GL_SHADING_LANGUAGE_VERSION)));
832
833	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
834	AssertRCReturn(rc, rc);
835	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
836
837	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
838
839	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
840	#else
841	pState->pszOtherExtensions = (char *)"";
842	pState->rsOtherGLVersion = pState->rsGLVersion;
843	#endif
844
845	/*
846	* Resolve GL function pointers and store them in pState->ext.
847	*/
848	rc = vmsvga3dLoadGLFunctions(pState);
849	if (RT_FAILURE(rc))
850	{
851	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
852	return rc;
853	}
854
855	/*
856	* Initialize the capabilities with sensible defaults.
857	*/
858	pState->caps.maxActiveLights = 1;
859	pState->caps.maxTextureBufferSize = 65536;
860	pState->caps.maxTextures = 1;
861	pState->caps.maxClipDistances = 4;
862	pState->caps.maxColorAttachments = 1;
863	pState->caps.maxRectangleTextureSize = 2048;
864	pState->caps.maxTextureAnisotropy = 2;
865	pState->caps.maxVertexShaderInstructions = 1024;
866	pState->caps.maxFragmentShaderInstructions = 1024;
867	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
868	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
869	pState->caps.flPointSize[0] = 1;
870	pState->caps.flPointSize[1] = 1;
871
872	/*
873	* Query capabilities
874	*/
875	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
876	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
877	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
878	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
879	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
880	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
881	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
882	#else
883	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
884	#endif
885	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
886	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
887	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
888	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
889
890	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
891	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
892	&pState->caps.maxFragmentShaderTemps));
893	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
894	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
895	&pState->caps.maxFragmentShaderInstructions));
896	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
897	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
898	&pState->caps.maxVertexShaderTemps));
899	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
900	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
901	&pState->caps.maxVertexShaderInstructions));
902
903	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
904
905	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
906	* ARB Assembly Language
907	* These are done through testing the presence of extensions. You should test them in this order:
908	* GL_NV_gpu_program4: SM 4.0 or better.
909	* GL_NV_vertex_program3: SM 3.0 or better.
910	* GL_ARB_fragment_program: SM 2.0 or better.
911	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
912	*
913	*/
914	/** @todo distinguish between vertex and pixel shaders??? */
915	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
916	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
917	if (v >= 3.30f)
918	{
919	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
920	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
921	}
922	else
923	if (v >= 1.20f)
924	{
925	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
926	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
927	}
928	else
929	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
930	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
931	{
932	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
933	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
934	}
935	else
936	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
937	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
938	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
939	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
940	)
941	{
942	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
943	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
944	}
945	else
946	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
947	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
948	{
949	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
950	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
951	}
952	else
953	{
954	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
955	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
956	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
957	}
958
959	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
960	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
961	{
962	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
963	}
964
965	/*
966	* Tweak capabilities.
967	*/
968	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
969	if ( pState->caps.maxVertexShaderTemps < 32
970	&& vmsvga3dIsVendorIntel())
971	pState->caps.maxVertexShaderTemps = 32;
972
973	#if 0
974	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
975	SVGA3D_DEVCAP_QUERY_TYPES = 15,
976	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
977	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
978	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
979	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
980	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
981	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
982	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
983	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
984	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
985	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
986	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
987	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
988	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
989	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
990	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
991	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
992	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
993	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
994	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
995	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
996	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
997	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
998	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
999	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1000	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1001	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1002	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1003	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1004	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1005	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1006	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1007	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1008	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1009	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1010	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1011	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1012	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1013	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1014	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1015	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1016	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1017	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1018	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1019	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1020	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1021	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1022	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1023	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1024	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1025	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1026	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1027	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1028	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1029	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1030	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1031	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1032	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1033	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1034	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1035	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1036	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1037	#endif
1038
1039	LogRel(("VMSVGA3d: Capabilities:\n"));
1040	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1041	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1042	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1043	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1044	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1045	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1046	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1047	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1048	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1049	pState->caps.maxFragmentShaderTemps,
1050	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1051	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1052	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1053	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1054
1055
1056	/* Initialize the shader library. */
1057	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1058	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1059	rc = ShaderInitLib(&pState->ShaderIf);
1060	AssertRC(rc);
1061
1062	/* Cleanup */
1063	rc = vmsvga3dContextDestroy(pThis, 1);
1064	AssertRC(rc);
1065	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1066	rc = vmsvga3dContextDestroy(pThis, 2);
1067	AssertRC(rc);
1068	#endif
1069
1070	if ( pState->rsGLVersion < 3.0
1071	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1072	{
1073	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1074	return VERR_NOT_IMPLEMENTED;
1075	}
1076
1077	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1078	pState->idTestContext = SVGA_ID_INVALID;
1079	#endif
1080	return VINF_SUCCESS;
1081	}
1082
1083	int vmsvga3dReset(PVGASTATE pThis)
1084	{
1085	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1086	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1087
1088	/* Destroy all leftover surfaces. */
1089	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1090	{
1091	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1092	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1093	}
1094
1095	/* Destroy all leftover contexts. */
1096	for (uint32_t i = 0; i < pState->cContexts; i++)
1097	{
1098	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1099	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1100	}
1101
1102	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1103	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1104
1105	return VINF_SUCCESS;
1106	}
1107
1108	int vmsvga3dTerminate(PVGASTATE pThis)
1109	{
1110	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1111	AssertReturn(pState, VERR_WRONG_ORDER);
1112	int rc;
1113
1114	rc = vmsvga3dReset(pThis);
1115	AssertRCReturn(rc, rc);
1116
1117	/* Terminate the shader library. */
1118	rc = ShaderDestroyLib();
1119	AssertRC(rc);
1120
1121	#ifdef RT_OS_WINDOWS
1122	/* Terminate the window creation thread. */
1123	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1124	AssertRCReturn(rc, rc);
1125
1126	RTSemEventDestroy(pState->WndRequestSem);
1127	#elif defined(RT_OS_DARWIN)
1128
1129	#elif defined(RT_OS_LINUX)
1130	/* signal to the thread that it is supposed to exit */
1131	pState->bTerminate = true;
1132	/* wait for it to terminate */
1133	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1134	AssertRC(rc);
1135	XCloseDisplay(pState->display);
1136	#endif
1137
1138	RTStrFree(pState->pszExtensions);
1139	pState->pszExtensions = NULL;
1140	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1141	RTStrFree(pState->pszOtherExtensions);
1142	#endif
1143	pState->pszOtherExtensions = NULL;
1144
1145	return VINF_SUCCESS;
1146	}
1147
1148
1149	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1150	{
1151	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1152	* redraw it. */
1153
1154	#ifdef RT_OS_DARWIN
1155	RT_NOREF(pOldViewport);
1156	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1157	if ( pState
1158	&& idScreen == 0
1159	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1160	{
1161	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1162	}
1163	#else
1164	RT_NOREF(pThis, idScreen, pOldViewport);
1165	#endif
1166	}
1167
1168
1169	/**
1170	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1171	* given surface format capability.
1172	*
1173	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1174	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1175	*
1176	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1177	* of implicit guest expectations:
1178	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1179	*/
1180	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1181	{
1182	uint32_t result = 0;
1183
1184	/** @todo missing:
1185	*
1186	* SVGA3DFORMAT_OP_PIXELSIZE
1187	*/
1188
1189	switch (idx3dCaps)
1190	{
1191	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1192	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1193	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1194	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1195	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1196	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1197	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1198	break;
1199
1200	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1201	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1202	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1203	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1204	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1205	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1206	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1207	break;
1208	}
1209
1210	/** @todo check hardware caps! */
1211	switch (idx3dCaps)
1212	{
1213	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1214	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1215	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1216	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1217	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1218	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1219	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1220	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1221	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1222	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1223	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1224	result \|= SVGA3DFORMAT_OP_TEXTURE
1225	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1226	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1227	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1228	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1229	\| SVGA3DFORMAT_OP_CUBETEXTURE
1230	\| SVGA3DFORMAT_OP_SRGBREAD
1231	\| SVGA3DFORMAT_OP_SRGBWRITE;
1232	break;
1233
1234	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1235	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1236	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1237	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1238	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1239	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1240	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1241	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1242	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1243	break;
1244
1245	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1246	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1247	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1248	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1249	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1250	result \|= SVGA3DFORMAT_OP_TEXTURE
1251	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1252	\| SVGA3DFORMAT_OP_CUBETEXTURE
1253	\| SVGA3DFORMAT_OP_SRGBREAD;
1254	break;
1255
1256	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1257	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1258	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1259	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1260	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1261	break;
1262
1263	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1264	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1265	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1266	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1267	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1268	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1269	result \|= SVGA3DFORMAT_OP_TEXTURE
1270	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1271	\| SVGA3DFORMAT_OP_CUBETEXTURE
1272	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1273	break;
1274
1275	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1276	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1277	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1278
1279	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1280	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1281	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1282	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1283	break;
1284	}
1285	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1286
1287	return result;
1288	}
1289
1290	#if 0 /* unused */
1291	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1292	{
1293	RT_NOREF(pState3D, idx3dCaps);
1294
1295	/** @todo test this somehow */
1296	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1297
1298	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1299	return result;
1300	}
1301	#endif
1302
1303
1304	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1305	{
1306	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1307	AssertReturn(pState, VERR_NO_MEMORY);
1308	int rc = VINF_SUCCESS;
1309
1310	*pu32Val = 0;
1311
1312	/*
1313	* The capabilities access by current (2015-03-01) linux sources (gallium,
1314	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1315	* aren't access.
1316	*/
1317
1318	switch (idx3dCaps)
1319	{
1320	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1321	case SVGA3D_DEVCAP_3D:
1322	pu32Val = 1; / boolean? */
1323	break;
1324
1325	case SVGA3D_DEVCAP_MAX_LIGHTS:
1326	*pu32Val = pState->caps.maxActiveLights;
1327	break;
1328
1329	case SVGA3D_DEVCAP_MAX_TEXTURES:
1330	*pu32Val = pState->caps.maxTextures;
1331	break;
1332
1333	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1334	*pu32Val = pState->caps.maxClipDistances;
1335	break;
1336
1337	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1338	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1339	*pu32Val = pState->caps.vertexShaderVersion;
1340	break;
1341
1342	case SVGA3D_DEVCAP_VERTEX_SHADER:
1343	/* boolean? */
1344	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1345	break;
1346
1347	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1348	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1349	*pu32Val = pState->caps.fragmentShaderVersion;
1350	break;
1351
1352	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1353	/* boolean? */
1354	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1355	break;
1356
1357	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1358	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1359	/* Must be obsolete by now; surface format caps specify the same thing. */
1360	rc = VERR_INVALID_PARAMETER;
1361	break;
1362
1363	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1364	break;
1365
1366	/*
1367	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1368	* return TRUE. Even on physical hardware that does not support
1369	* these formats natively, the SVGA3D device will provide an emulation
1370	* which should be invisible to the guest OS.
1371	*/
1372	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1373	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1374	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1375	*pu32Val = 1;
1376	break;
1377
1378	case SVGA3D_DEVCAP_QUERY_TYPES:
1379	break;
1380
1381	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1382	break;
1383
1384	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1385	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1386	AssertCompile(sizeof(uint32_t) == sizeof(float));
1387	(float )pu32Val = pState->caps.flPointSize[1];
1388	break;
1389
1390	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1391	/** @todo ?? */
1392	rc = VERR_INVALID_PARAMETER;
1393	break;
1394
1395	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1396	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1397	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1398	*pu32Val = pState->caps.maxRectangleTextureSize;
1399	break;
1400
1401	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1402	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1403	//*pu32Val = pCaps->MaxVolumeExtent;
1404	*pu32Val = 256;
1405	break;
1406
1407	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1408	pu32Val = 32768; / hardcoded in Wine */
1409	break;
1410
1411	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1412	//*pu32Val = pCaps->MaxTextureAspectRatio;
1413	break;
1414
1415	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1416	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1417	*pu32Val = pState->caps.maxTextureAnisotropy;
1418	break;
1419
1420	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1421	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1422	pu32Val = 0xFFFFF; / hardcoded in Wine */
1423	break;
1424
1425	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1426	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1427	*pu32Val = pState->caps.maxVertexShaderInstructions;
1428	break;
1429
1430	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1431	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1432	break;
1433
1434	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1435	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1436	*pu32Val = pState->caps.maxVertexShaderTemps;
1437	break;
1438
1439	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1440	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1441	*pu32Val = pState->caps.maxFragmentShaderTemps;
1442	break;
1443
1444	case SVGA3D_DEVCAP_TEXTURE_OPS:
1445	break;
1446
1447	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1448	break;
1449
1450	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1451	break;
1452
1453	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1454	break;
1455
1456	case SVGA3D_DEVCAP_SUPERSAMPLE:
1457	break;
1458
1459	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1460	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1461	break;
1462
1463	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1464	break;
1465
1466	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1467	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1468	*pu32Val = pState->caps.maxColorAttachments;
1469	break;
1470
1471	/*
1472	* This is the maximum number of SVGA context IDs that the guest
1473	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1474	*/
1475	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1476	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1477	break;
1478
1479	/*
1480	* This is the maximum number of SVGA surface IDs that the guest
1481	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1482	*/
1483	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1484	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1485	break;
1486
1487	#if 0 /* Appeared more recently, not yet implemented. */
1488	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1489	case SVGA3D_DEVCAP_LINE_AA:
1490	break;
1491	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1492	case SVGA3D_DEVCAP_LINE_STIPPLE:
1493	break;
1494	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1495	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1496	break;
1497	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1498	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1499	break;
1500	#endif
1501
1502	/*
1503	* Supported surface formats.
1504	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1505	*/
1506	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1507	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1508	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1509	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1510	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1511	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1512	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1513	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1514	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1515	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1516	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1517	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1518	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1519	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1520	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1521	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1522	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1523	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1524	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1525	break;
1526
1527	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1528	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1529	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1530	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1531	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1532	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1533	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1534	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1535	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1536	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1537	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1538	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1539	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1540	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1541	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1542	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1543	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1544	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1545	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1546	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1547	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1548	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1549	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1550	break;
1551
1552	/* Linux: Not referenced in current sources. */
1553	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1554	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1555	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1556	rc = VERR_INVALID_PARAMETER;
1557	*pu32Val = 0;
1558	break;
1559
1560	default:
1561	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1562	rc = VERR_INVALID_PARAMETER;
1563	break;
1564	}
1565
1566	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1567	return rc;
1568	}
1569
1570	/**
1571	* Convert SVGA format value to its OpenGL equivalent
1572	*
1573	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1574	* help from wined3dformat_from_d3dformat().
1575	*/
1576	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1577	{
1578	switch (format)
1579	{
1580	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1581	pSurface->internalFormatGL = GL_RGB8;
1582	pSurface->formatGL = GL_BGRA;
1583	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1584	break;
1585	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1586	pSurface->internalFormatGL = GL_RGBA8;
1587	pSurface->formatGL = GL_BGRA;
1588	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1589	break;
1590	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1591	pSurface->internalFormatGL = GL_RGB5;
1592	pSurface->formatGL = GL_RGB;
1593	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1594	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1595	break;
1596	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1597	pSurface->internalFormatGL = GL_RGB5;
1598	pSurface->formatGL = GL_BGRA;
1599	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1600	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1601	break;
1602	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1603	pSurface->internalFormatGL = GL_RGB5_A1;
1604	pSurface->formatGL = GL_BGRA;
1605	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1606	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1607	break;
1608	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1609	pSurface->internalFormatGL = GL_RGBA4;
1610	pSurface->formatGL = GL_BGRA;
1611	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1612	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1613	break;
1614
1615	case SVGA3D_R8G8B8A8_UNORM:
1616	pSurface->internalFormatGL = GL_RGBA8;
1617	pSurface->formatGL = GL_RGBA;
1618	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1619	break;
1620
1621	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1622	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1623	pSurface->formatGL = GL_DEPTH_COMPONENT;
1624	pSurface->typeGL = GL_UNSIGNED_INT;
1625	break;
1626	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1627	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1628	pSurface->formatGL = GL_DEPTH_COMPONENT;
1629	pSurface->typeGL = GL_UNSIGNED_SHORT;
1630	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1631	break;
1632	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1633	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1634	pSurface->formatGL = GL_DEPTH_STENCIL;
1635	pSurface->typeGL = GL_UNSIGNED_INT;
1636	break;
1637	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1638	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1639	pSurface->formatGL = GL_DEPTH_STENCIL;
1640	pSurface->typeGL = GL_UNSIGNED_SHORT;
1641	/** @todo Wine sources hints at no hw support for this, so test this one! */
1642	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1643	break;
1644	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1645	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1646	pSurface->formatGL = GL_DEPTH_COMPONENT;
1647	pSurface->typeGL = GL_UNSIGNED_INT;
1648	break;
1649
1650	/* Advanced D3D9 depth formats. */
1651	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1652	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1653	pSurface->formatGL = GL_DEPTH_COMPONENT;
1654	pSurface->typeGL = GL_FLOAT;
1655	break;
1656
1657	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1658	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1659	pSurface->formatGL = GL_DEPTH_COMPONENT;
1660	pSurface->typeGL = GL_FLOAT; /* ??? */
1661	break;
1662
1663	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1664	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1665	pSurface->formatGL = GL_DEPTH_STENCIL;
1666	pSurface->typeGL = GL_INT; /* ??? */
1667	break;
1668
1669	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1670	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1671	pSurface->formatGL = GL_RGBA; /* not used */
1672	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1673	break;
1674
1675	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1676	/* "DXT2 and DXT3 are the same from an API perspective." */
1677	RT_FALL_THRU();
1678	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1679	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1680	pSurface->formatGL = GL_RGBA; /* not used */
1681	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1682	break;
1683
1684	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1685	/* "DXT4 and DXT5 are the same from an API perspective." */
1686	RT_FALL_THRU();
1687	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1688	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1689	pSurface->formatGL = GL_RGBA; /* not used */
1690	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1691	break;
1692
1693	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1694	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1695	pSurface->formatGL = GL_LUMINANCE;
1696	pSurface->typeGL = GL_UNSIGNED_BYTE;
1697	break;
1698
1699	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1700	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1701	pSurface->formatGL = GL_LUMINANCE;
1702	pSurface->typeGL = GL_UNSIGNED_SHORT;
1703	break;
1704
1705	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1706	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1707	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1708	pSurface->typeGL = GL_UNSIGNED_BYTE;
1709	break;
1710
1711	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1712	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1713	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1714	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1715	break;
1716
1717	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1718	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1719	pSurface->formatGL = GL_ALPHA;
1720	pSurface->typeGL = GL_UNSIGNED_BYTE;
1721	break;
1722
1723	#if 0
1724
1725	/* Bump-map formats */
1726	case SVGA3D_BUMPU8V8:
1727	return D3DFMT_V8U8;
1728	case SVGA3D_BUMPL6V5U5:
1729	return D3DFMT_L6V5U5;
1730	case SVGA3D_BUMPX8L8V8U8:
1731	return D3DFMT_X8L8V8U8;
1732	case SVGA3D_BUMPL8V8U8:
1733	/* No corresponding D3D9 equivalent. */
1734	AssertFailedReturn(D3DFMT_UNKNOWN);
1735	/* signed bump-map formats */
1736	case SVGA3D_V8U8:
1737	return D3DFMT_V8U8;
1738	case SVGA3D_Q8W8V8U8:
1739	return D3DFMT_Q8W8V8U8;
1740	case SVGA3D_CxV8U8:
1741	return D3DFMT_CxV8U8;
1742	/* mixed bump-map formats */
1743	case SVGA3D_X8L8V8U8:
1744	return D3DFMT_X8L8V8U8;
1745	case SVGA3D_A2W10V10U10:
1746	return D3DFMT_A2W10V10U10;
1747	#endif
1748
1749	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1750	pSurface->internalFormatGL = GL_RGBA16F;
1751	pSurface->formatGL = GL_RGBA;
1752	#if 0 /* bird: wine uses half float, sounds correct to me... */
1753	pSurface->typeGL = GL_FLOAT;
1754	#else
1755	pSurface->typeGL = GL_HALF_FLOAT;
1756	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1757	#endif
1758	break;
1759
1760	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1761	pSurface->internalFormatGL = GL_RGBA32F;
1762	pSurface->formatGL = GL_RGBA;
1763	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1764	break;
1765
1766	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1767	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1768	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1769	pSurface->formatGL = GL_RGBA;
1770	#else
1771	pSurface->formatGL = GL_BGRA;
1772	#endif
1773	pSurface->typeGL = GL_UNSIGNED_INT;
1774	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1775	break;
1776
1777
1778	/* Single- and dual-component floating point formats */
1779	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1780	pSurface->internalFormatGL = GL_R16F;
1781	pSurface->formatGL = GL_RED;
1782	#if 0 /* bird: wine uses half float, sounds correct to me... */
1783	pSurface->typeGL = GL_FLOAT;
1784	#else
1785	pSurface->typeGL = GL_HALF_FLOAT;
1786	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1787	#endif
1788	break;
1789	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1790	pSurface->internalFormatGL = GL_R32F;
1791	pSurface->formatGL = GL_RED;
1792	pSurface->typeGL = GL_FLOAT;
1793	break;
1794	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1795	pSurface->internalFormatGL = GL_RG16F;
1796	pSurface->formatGL = GL_RG;
1797	#if 0 /* bird: wine uses half float, sounds correct to me... */
1798	pSurface->typeGL = GL_FLOAT;
1799	#else
1800	pSurface->typeGL = GL_HALF_FLOAT;
1801	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1802	#endif
1803	break;
1804	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1805	pSurface->internalFormatGL = GL_RG32F;
1806	pSurface->formatGL = GL_RG;
1807	pSurface->typeGL = GL_FLOAT;
1808	break;
1809
1810	/*
1811	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1812	* the most efficient format to use when creating new surfaces
1813	* expressly for index or vertex data.
1814	*/
1815	case SVGA3D_BUFFER:
1816	pSurface->internalFormatGL = -1;
1817	pSurface->formatGL = -1;
1818	pSurface->typeGL = -1;
1819	break;
1820
1821	#if 0
1822	return D3DFMT_UNKNOWN;
1823
1824	case SVGA3D_V16U16:
1825	return D3DFMT_V16U16;
1826	#endif
1827
1828	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1829	pSurface->internalFormatGL = GL_RG16;
1830	pSurface->formatGL = GL_RG;
1831	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1832	pSurface->typeGL = GL_UNSIGNED_INT;
1833	#else
1834	pSurface->typeGL = GL_UNSIGNED_SHORT;
1835	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1836	#endif
1837	break;
1838
1839	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1840	pSurface->internalFormatGL = GL_RGBA16;
1841	pSurface->formatGL = GL_RGBA;
1842	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1843	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1844	#else
1845	pSurface->typeGL = GL_UNSIGNED_SHORT;
1846	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1847	#endif
1848	break;
1849
1850	case SVGA3D_R8G8B8A8_SNORM:
1851	pSurface->internalFormatGL = GL_RGB8;
1852	pSurface->formatGL = GL_BGRA;
1853	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1854	AssertMsgFailed(("test me - SVGA3D_R8G8B8A8_SNORM\n"));
1855	break;
1856	case SVGA3D_R16G16_UNORM:
1857	pSurface->internalFormatGL = GL_RG16;
1858	pSurface->formatGL = GL_RG;
1859	pSurface->typeGL = GL_UNSIGNED_SHORT;
1860	AssertMsgFailed(("test me - SVGA3D_R16G16_UNORM\n"));
1861	break;
1862
1863	#if 0
1864	/* Packed Video formats */
1865	case SVGA3D_UYVY:
1866	return D3DFMT_UYVY;
1867	case SVGA3D_YUY2:
1868	return D3DFMT_YUY2;
1869
1870	/* Planar video formats */
1871	case SVGA3D_NV12:
1872	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1873
1874	/* Video format with alpha */
1875	case SVGA3D_AYUV:
1876	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1877
1878	case SVGA3D_BC4_UNORM:
1879	case SVGA3D_BC5_UNORM:
1880	/* Unknown; only in DX10 & 11 */
1881	break;
1882	#endif
1883	default:
1884	AssertMsgFailed(("Unsupported format %d\n", format));
1885	break;
1886	}
1887	}
1888
1889
1890	#if 0
1891	/**
1892	* Convert SVGA multi sample count value to its D3D equivalent
1893	*/
1894	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1895	{
1896	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1897	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1898
1899	if (multisampleCount > 16)
1900	return D3DMULTISAMPLE_NONE;
1901
1902	/** @todo exact same mapping as d3d? */
1903	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1904	}
1905	#endif
1906
1907	/**
1908	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1909	*
1910	* @param pState The VMSVGA3d state.
1911	* @param pSurface The surface being destroyed.
1912	*/
1913	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1914	{
1915	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1916	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1917
1918	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1919	{
1920	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1921	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1922	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1923	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1924	{
1925	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1926	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1927	}
1928	break;
1929
1930	case SVGA3D_SURFACE_CUBEMAP:
1931	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
1932	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1933	/* Cubemap is a texture. */
1934	case SVGA3D_SURFACE_HINT_TEXTURE:
1935	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1936	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1937	{
1938	glDeleteTextures(1, &pSurface->oglId.texture);
1939	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1940	}
1941	break;
1942
1943	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1944	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1945	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1946	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1947	{
1948	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1949	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1950	}
1951	break;
1952
1953	default:
1954	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1955	break;
1956	}
1957	}
1958
1959
1960	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1961	{
1962	for (uint32_t i = 0; i < cCopyBoxes; i++)
1963	{
1964	SVGA3dBox destBox, srcBox;
1965
1966	srcBox.x = pBox[i].srcx;
1967	srcBox.y = pBox[i].srcy;
1968	srcBox.z = pBox[i].srcz;
1969	srcBox.w = pBox[i].w;
1970	srcBox.h = pBox[i].h;
1971	srcBox.d = pBox[i].d;
1972
1973	destBox.x = pBox[i].x;
1974	destBox.y = pBox[i].y;
1975	destBox.z = pBox[i].z;
1976	destBox.w = pBox[i].w;
1977	destBox.h = pBox[i].h;
1978	destBox.d = pBox[i].d;
1979
1980	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1981	AssertRCReturn(rc, rc);
1982	}
1983	return VINF_SUCCESS;
1984	}
1985
1986
1987	/**
1988	* Save texture unpacking parameters and loads those appropriate for the given
1989	* surface.
1990	*
1991	* @param pState The VMSVGA3D state structure.
1992	* @param pContext The active context.
1993	* @param pSurface The surface.
1994	* @param pSave Where to save stuff.
1995	*/
1996	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1997	PVMSVGAPACKPARAMS pSave)
1998	{
1999	RT_NOREF(pState);
2000
2001	/*
2002	* Save (ignore errors, setting the defaults we want and avoids restore).
2003	*/
2004	pSave->iAlignment = 1;
2005	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2006	pSave->cxRow = 0;
2007	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2008
2009	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2010	pSave->cyImage = 0;
2011	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2012	Assert(pSave->cyImage == 0);
2013
2014	pSave->fSwapBytes = GL_FALSE;
2015	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2016	Assert(pSave->fSwapBytes == GL_FALSE);
2017
2018	pSave->fLsbFirst = GL_FALSE;
2019	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2020	Assert(pSave->fLsbFirst == GL_FALSE);
2021
2022	pSave->cSkipRows = 0;
2023	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2024	Assert(pSave->cSkipRows == 0);
2025
2026	pSave->cSkipPixels = 0;
2027	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2028	Assert(pSave->cSkipPixels == 0);
2029
2030	pSave->cSkipImages = 0;
2031	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2032	Assert(pSave->cSkipImages == 0);
2033
2034	VMSVGA3D_CLEAR_GL_ERRORS();
2035	#endif
2036
2037	/*
2038	* Setup unpack.
2039	*
2040	* Note! We use 1 as alignment here because we currently don't do any
2041	* aligning of line pitches anywhere.
2042	*/
2043	NOREF(pSurface);
2044	if (pSave->iAlignment != 1)
2045	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2046	if (pSave->cxRow != 0)
2047	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2048	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2049	if (pSave->cyImage != 0)
2050	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2051	if (pSave->fSwapBytes != 0)
2052	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2053	if (pSave->fLsbFirst != 0)
2054	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2055	if (pSave->cSkipRows != 0)
2056	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2057	if (pSave->cSkipPixels != 0)
2058	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2059	if (pSave->cSkipImages != 0)
2060	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2061	#endif
2062	}
2063
2064
2065	/**
2066	* Restores texture unpacking parameters.
2067	*
2068	* @param pState The VMSVGA3D state structure.
2069	* @param pContext The active context.
2070	* @param pSurface The surface.
2071	* @param pSave Where stuff was saved.
2072	*/
2073	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2074	PCVMSVGAPACKPARAMS pSave)
2075	{
2076	RT_NOREF(pState, pSurface);
2077
2078	if (pSave->iAlignment != 1)
2079	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2080	if (pSave->cxRow != 0)
2081	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2082	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2083	if (pSave->cyImage != 0)
2084	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2085	if (pSave->fSwapBytes != 0)
2086	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2087	if (pSave->fLsbFirst != 0)
2088	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2089	if (pSave->cSkipRows != 0)
2090	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2091	if (pSave->cSkipPixels != 0)
2092	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2093	if (pSave->cSkipImages != 0)
2094	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2095	#endif
2096	}
2097
2098	/**
2099	* Create D3D/OpenGL texture object for the specified surface.
2100	*
2101	* Surfaces are created when needed.
2102	*
2103	* @param pState The VMSVGA3d state.
2104	* @param pContext The context.
2105	* @param idAssociatedContext Probably the same as pContext->id.
2106	* @param pSurface The surface to create the texture for.
2107	*/
2108	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2109	PVMSVGA3DSURFACE pSurface)
2110	{
2111	RT_NOREF(idAssociatedContext);
2112
2113	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2114
2115	/* Fugure out what kind of texture we are creating. */
2116	GLenum binding;
2117	GLenum target;
2118	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2119	{
2120	Assert(pSurface->cFaces == 6);
2121
2122	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2123	target = GL_TEXTURE_CUBE_MAP;
2124	}
2125	else
2126	{
2127	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2128	{
2129	binding = GL_TEXTURE_BINDING_3D;
2130	target = GL_TEXTURE_3D;
2131	}
2132	else
2133	{
2134	Assert(pSurface->cFaces == 1);
2135
2136	binding = GL_TEXTURE_BINDING_2D;
2137	target = GL_TEXTURE_2D;
2138	}
2139	}
2140
2141	/* All textures are created in the SharedCtx. */
2142	uint32_t idPrevCtx = pState->idActiveContext;
2143	pContext = &pState->SharedCtx;
2144	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2145
2146	glGenTextures(1, &pSurface->oglId.texture);
2147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2148
2149	GLint activeTexture = 0;
2150	glGetIntegerv(binding, &activeTexture);
2151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2152
2153	/* Must bind texture to the current context in order to change it. */
2154	glBindTexture(target, pSurface->oglId.texture);
2155	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2156
2157	/* Set the unpacking parameters. */
2158	VMSVGAPACKPARAMS SavedParams;
2159	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2160
2161	/** @todo Set the mip map generation filter settings. */
2162
2163	/* Set the mipmap base and max level parameters. */
2164	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2165	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2166	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2167	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2168
2169	if (pSurface->fDirty)
2170	LogFunc(("sync dirty texture\n"));
2171
2172	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2173	if (target == GL_TEXTURE_3D)
2174	{
2175	for (uint32_t i = 0; i < numMipLevels; ++i)
2176	{
2177	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2178	* exposing random host memory to the guest and helps a with the fedora 21 surface
2179	* corruption issues (launchpad, background, search field, login).
2180	*/
2181	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2182
2183	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2184	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2185
2186	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2187	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2188	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2189	{
2190	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2191	i,
2192	pSurface->internalFormatGL,
2193	pMipLevel->mipmapSize.width,
2194	pMipLevel->mipmapSize.height,
2195	pMipLevel->mipmapSize.depth,
2196	0,
2197	pMipLevel->cbSurface,
2198	pMipLevel->pSurfaceData);
2199	}
2200	else
2201	{
2202	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2203	i,
2204	pSurface->internalFormatGL,
2205	pMipLevel->mipmapSize.width,
2206	pMipLevel->mipmapSize.height,
2207	pMipLevel->mipmapSize.depth,
2208	0, /* border */
2209	pSurface->formatGL,
2210	pSurface->typeGL,
2211	pMipLevel->pSurfaceData);
2212	}
2213	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2214
2215	pMipLevel->fDirty = false;
2216	}
2217	}
2218	else if (target == GL_TEXTURE_CUBE_MAP)
2219	{
2220	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2221	{
2222	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2223
2224	for (uint32_t i = 0; i < numMipLevels; ++i)
2225	{
2226	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2227	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2228	Assert(pMipLevel->mipmapSize.depth == 1);
2229
2230	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2231	iFace, i, pMipLevel->fDirty));
2232
2233	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2234	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2235	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2236	{
2237	pState->ext.glCompressedTexImage2D(Face,
2238	i,
2239	pSurface->internalFormatGL,
2240	pMipLevel->mipmapSize.width,
2241	pMipLevel->mipmapSize.height,
2242	0,
2243	pMipLevel->cbSurface,
2244	pMipLevel->pSurfaceData);
2245	}
2246	else
2247	{
2248	glTexImage2D(Face,
2249	i,
2250	pSurface->internalFormatGL,
2251	pMipLevel->mipmapSize.width,
2252	pMipLevel->mipmapSize.height,
2253	0,
2254	pSurface->formatGL,
2255	pSurface->typeGL,
2256	pMipLevel->pSurfaceData);
2257	}
2258	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2259
2260	pMipLevel->fDirty = false;
2261	}
2262	}
2263	}
2264	else if (target == GL_TEXTURE_2D)
2265	{
2266	for (uint32_t i = 0; i < numMipLevels; ++i)
2267	{
2268	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2269	* exposing random host memory to the guest and helps a with the fedora 21 surface
2270	* corruption issues (launchpad, background, search field, login).
2271	*/
2272	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2273	Assert(pMipLevel->mipmapSize.depth == 1);
2274
2275	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2276	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2277
2278	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2279	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2280	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2281	{
2282	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2283	i,
2284	pSurface->internalFormatGL,
2285	pMipLevel->mipmapSize.width,
2286	pMipLevel->mipmapSize.height,
2287	0,
2288	pMipLevel->cbSurface,
2289	pMipLevel->pSurfaceData);
2290	}
2291	else
2292	{
2293	glTexImage2D(GL_TEXTURE_2D,
2294	i,
2295	pSurface->internalFormatGL,
2296	pMipLevel->mipmapSize.width,
2297	pMipLevel->mipmapSize.height,
2298	0,
2299	pSurface->formatGL,
2300	pSurface->typeGL,
2301	pMipLevel->pSurfaceData);
2302	}
2303	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2304
2305	pMipLevel->fDirty = false;
2306	}
2307	}
2308
2309	pSurface->fDirty = false;
2310
2311	/* Restore unpacking parameters. */
2312	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2313
2314	/* Restore the old active texture. */
2315	glBindTexture(target, activeTexture);
2316	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2317
2318	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2319	pSurface->targetGL = target;
2320	pSurface->bindingGL = binding;
2321
2322	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2323	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2324	return VINF_SUCCESS;
2325	}
2326
2327
2328	/**
2329	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2330	*
2331	* @returns VBox status code.
2332	* @param pThis The VGA device instance.
2333	* @param pState The VMSVGA3d state.
2334	* @param pDstSurface The destination host surface.
2335	* @param uDstFace The destination face (valid).
2336	* @param uDstMipmap The destination mipmap level (valid).
2337	* @param pDstBox The destination box.
2338	* @param pSrcSurface The source host surface.
2339	* @param uSrcFace The destination face (valid).
2340	* @param uSrcMipmap The source mimap level (valid).
2341	* @param pSrcBox The source box.
2342	* @param enmMode The strecht blt mode .
2343	* @param pContext The VMSVGA3d context (already current for OGL).
2344	*/
2345	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2346	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2347	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2348	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2349	{
2350	RT_NOREF(pThis);
2351
2352	/* Activate the read and draw framebuffer objects. */
2353	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2355	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2357
2358	/* Bind the source and destination objects to the right place. */
2359	GLenum textarget;
2360	if (pSrcSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2361	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2362	else
2363	textarget = GL_TEXTURE_2D;
2364	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2365	pSrcSurface->oglId.texture, uSrcMipmap);
2366	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2367
2368	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2369	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2370	else
2371	textarget = GL_TEXTURE_2D;
2372	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2373	pDstSurface->oglId.texture, uDstMipmap);
2374	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2375
2376	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2377	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2378	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2379	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2380	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2381
2382	pState->ext.glBlitFramebuffer(pSrcBox->x,
2383	pSrcBox->y,
2384	pSrcBox->x + pSrcBox->w, /* exclusive. */
2385	pSrcBox->y + pSrcBox->h,
2386	pDstBox->x,
2387	pDstBox->y,
2388	pDstBox->x + pDstBox->w, /* exclusive. */
2389	pDstBox->y + pDstBox->h,
2390	GL_COLOR_BUFFER_BIT,
2391	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2392	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2393
2394	/* Reset the frame buffer association */
2395	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2396	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2397
2398	return VINF_SUCCESS;
2399	}
2400
2401	/**
2402	* Save texture packing parameters and loads those appropriate for the given
2403	* surface.
2404	*
2405	* @param pState The VMSVGA3D state structure.
2406	* @param pContext The active context.
2407	* @param pSurface The surface.
2408	* @param pSave Where to save stuff.
2409	*/
2410	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2411	PVMSVGAPACKPARAMS pSave)
2412	{
2413	RT_NOREF(pState);
2414	/*
2415	* Save (ignore errors, setting the defaults we want and avoids restore).
2416	*/
2417	pSave->iAlignment = 1;
2418	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2419	pSave->cxRow = 0;
2420	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2421
2422	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2423	pSave->cyImage = 0;
2424	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2425	Assert(pSave->cyImage == 0);
2426
2427	pSave->fSwapBytes = GL_FALSE;
2428	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2429	Assert(pSave->fSwapBytes == GL_FALSE);
2430
2431	pSave->fLsbFirst = GL_FALSE;
2432	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2433	Assert(pSave->fLsbFirst == GL_FALSE);
2434
2435	pSave->cSkipRows = 0;
2436	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2437	Assert(pSave->cSkipRows == 0);
2438
2439	pSave->cSkipPixels = 0;
2440	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2441	Assert(pSave->cSkipPixels == 0);
2442
2443	pSave->cSkipImages = 0;
2444	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2445	Assert(pSave->cSkipImages == 0);
2446
2447	VMSVGA3D_CLEAR_GL_ERRORS();
2448	#endif
2449
2450	/*
2451	* Setup unpack.
2452	*
2453	* Note! We use 1 as alignment here because we currently don't do any
2454	* aligning of line pitches anywhere.
2455	*/
2456	NOREF(pSurface);
2457	if (pSave->iAlignment != 1)
2458	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2459	if (pSave->cxRow != 0)
2460	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2461	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2462	if (pSave->cyImage != 0)
2463	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2464	if (pSave->fSwapBytes != 0)
2465	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2466	if (pSave->fLsbFirst != 0)
2467	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2468	if (pSave->cSkipRows != 0)
2469	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2470	if (pSave->cSkipPixels != 0)
2471	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2472	if (pSave->cSkipImages != 0)
2473	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2474	#endif
2475	}
2476
2477
2478	/**
2479	* Restores texture packing parameters.
2480	*
2481	* @param pState The VMSVGA3D state structure.
2482	* @param pContext The active context.
2483	* @param pSurface The surface.
2484	* @param pSave Where stuff was saved.
2485	*/
2486	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2487	PCVMSVGAPACKPARAMS pSave)
2488	{
2489	RT_NOREF(pState, pSurface);
2490	if (pSave->iAlignment != 1)
2491	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2492	if (pSave->cxRow != 0)
2493	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2494	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2495	if (pSave->cyImage != 0)
2496	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2497	if (pSave->fSwapBytes != 0)
2498	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2499	if (pSave->fLsbFirst != 0)
2500	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2501	if (pSave->cSkipRows != 0)
2502	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2503	if (pSave->cSkipPixels != 0)
2504	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2505	if (pSave->cSkipImages != 0)
2506	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2507	#endif
2508	}
2509
2510
2511	/**
2512	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2513	*
2514	* @returns Failure status code or @a rc.
2515	* @param pThis The VGA device instance data.
2516	* @param pState The VMSVGA3d state.
2517	* @param pSurface The host surface.
2518	* @param pMipLevel Mipmap level. The caller knows it already.
2519	* @param uHostFace The host face (valid).
2520	* @param uHostMipmap The host mipmap level (valid).
2521	* @param GuestPtr The guest pointer.
2522	* @param cbGuestPitch The guest pitch.
2523	* @param transfer The transfer direction.
2524	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2525	* @param pContext The context (for OpenGL).
2526	* @param rc The current rc for all boxes.
2527	* @param iBox The current box number (for Direct 3D).
2528	*/
2529	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2530	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2531	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2532	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2533	{
2534	RT_NOREF(iBox);
2535
2536	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2537	{
2538	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2539	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2540	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2541	case SVGA3D_SURFACE_HINT_TEXTURE:
2542	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2543	{
2544	uint32_t cbSurfacePitch;
2545	uint8_t *pDoubleBuffer;
2546	uint32_t offHst;
2547
2548	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2549	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2550	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2551	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2552
2553	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2554	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2555	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2556	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2557
2558	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2559	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2560	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2561
2562	GLenum texImageTarget;
2563	if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2564	{
2565	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2566	}
2567	else
2568	{
2569	Assert(pSurface->targetGL == GL_TEXTURE_2D);
2570	texImageTarget = GL_TEXTURE_2D;
2571	}
2572
2573	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2574	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2575
2576	if (transfer == SVGA3D_READ_HOST_VRAM)
2577	{
2578	GLint activeTexture;
2579
2580	/* Must bind texture to the current context in order to read it. */
2581	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2582	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2583
2584	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2585	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2586
2587	/* Set row length and alignment of the input data. */
2588	VMSVGAPACKPARAMS SavedParams;
2589	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2590
2591	glGetTexImage(texImageTarget,
2592	uHostMipmap,
2593	pSurface->formatGL,
2594	pSurface->typeGL,
2595	pDoubleBuffer);
2596	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2597
2598	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2599
2600	/* Restore the old active texture. */
2601	glBindTexture(pSurface->targetGL, activeTexture);
2602	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2603
2604	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2605	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2606	}
2607	else
2608	{
2609	/* The buffer will contain only the copied rectangle. */
2610	offHst = 0;
2611	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2612	}
2613
2614	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2615
2616	rc = vmsvgaGMRTransfer(pThis,
2617	transfer,
2618	pDoubleBuffer,
2619	pMipLevel->cbSurface,
2620	offHst,
2621	cbSurfacePitch,
2622	GuestPtr,
2623	offGst,
2624	cbGuestPitch,
2625	cBlocksX * pSurface->cbBlock,
2626	cBlocksY);
2627	AssertRC(rc);
2628
2629	/* Update the opengl surface data. */
2630	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2631	{
2632	GLint activeTexture = 0;
2633	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2634	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2635
2636	/* Must bind texture to the current context in order to change it. */
2637	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2638	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2639
2640	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2641
2642	/* Set row length and alignment of the input data. */
2643	VMSVGAPACKPARAMS SavedParams;
2644	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2645
2646	glTexSubImage2D(texImageTarget,
2647	uHostMipmap,
2648	u32HostBlockX,
2649	u32HostBlockY,
2650	cBlocksX,
2651	cBlocksY,
2652	pSurface->formatGL,
2653	pSurface->typeGL,
2654	pDoubleBuffer);
2655	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2656
2657	/* Restore old values. */
2658	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2659
2660	/* Restore the old active texture. */
2661	glBindTexture(pSurface->targetGL, activeTexture);
2662	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2663	}
2664
2665	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2666
2667	/* Free the double buffer. */
2668	RTMemFree(pDoubleBuffer);
2669	break;
2670	}
2671
2672	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2673	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2674	break;
2675
2676	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2677	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2678	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2679	{
2680	/* Buffers are uncompressed. */
2681	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2682
2683	/* Caller already clipped pBox and buffers are 1-dimensional. */
2684	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2685
2686	VMSVGA3D_CLEAR_GL_ERRORS();
2687	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2688	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2689	{
2690	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2691	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2692	if (RT_LIKELY(pbData != NULL))
2693	{
2694	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2695	GLint cbStrictBufSize;
2696	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2697	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2698	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2699	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2700	#endif
2701	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2702	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2703	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2704	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2705
2706	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2707
2708	rc = vmsvgaGMRTransfer(pThis,
2709	transfer,
2710	pbData,
2711	pMipLevel->cbSurface,
2712	offHst,
2713	pMipLevel->cbSurfacePitch,
2714	GuestPtr,
2715	pBox->srcx * pSurface->cbBlock,
2716	cbGuestPitch,
2717	pBox->w * pSurface->cbBlock,
2718	pBox->h);
2719	AssertRC(rc);
2720
2721	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2722
2723	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2724	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2725	}
2726	else
2727	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2728	}
2729	else
2730	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2731	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2732	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2733	break;
2734	}
2735
2736	default:
2737	AssertFailed();
2738	break;
2739	}
2740
2741	return rc;
2742	}
2743
2744	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2745	{
2746	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2747	PVMSVGA3DSURFACE pSurface;
2748	int rc = VINF_SUCCESS;
2749	PVMSVGA3DCONTEXT pContext;
2750	uint32_t cid;
2751	GLint activeTexture = 0;
2752
2753	AssertReturn(pState, VERR_NO_MEMORY);
2754
2755	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2756	AssertRCReturn(rc, rc);
2757
2758	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2759	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2760	pSurface->autogenFilter = filter;
2761
2762	LogFunc(("sid=%x filter=%d\n", sid, filter));
2763
2764	cid = SVGA3D_INVALID_ID;
2765	pContext = &pState->SharedCtx;
2766	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2767
2768	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2769	{
2770	/* Unknown surface type; turn it into a texture. */
2771	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2772	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2773	AssertRCReturn(rc, rc);
2774	}
2775	else
2776	{
2777	/** @todo new filter */
2778	AssertFailed();
2779	}
2780
2781	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2783
2784	/* Must bind texture to the current context in order to change it. */
2785	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2786	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2787
2788	/* Generate the mip maps. */
2789	pState->ext.glGenerateMipmap(pSurface->targetGL);
2790	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2791
2792	/* Restore the old texture. */
2793	glBindTexture(pSurface->targetGL, activeTexture);
2794	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2795
2796	return VINF_SUCCESS;
2797	}
2798
2799	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2800	{
2801	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2802	PVMSVGA3DSURFACE pSurface;
2803	PVMSVGA3DCONTEXT pContext;
2804	uint32_t cid;
2805
2806	AssertReturn(pState, VERR_NO_MEMORY);
2807	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2808	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2809
2810	pSurface = pState->papSurfaces[sid];
2811
2812	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2813	for (uint32_t i=0; i < cRects; i++)
2814	Log(("vmsvga3dCommandPresent: rectangle %d src=(%d,%d) (%d,%d)(%d,%d)\n", i, pRect[i].srcx, pRect[i].srcy, pRect[i].x, pRect[i].y, pRect[i].x + pRect[i].w, pRect[i].y + pRect[i].h));
2815
2816	pContext = &pState->SharedCtx;
2817	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2818	cid = pContext->id;
2819	VMSVGA3D_CLEAR_GL_ERRORS();
2820
2821	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2822	/*
2823	* Source surface different size?
2824	*/
2825	RTRECT2 srcViewPort;
2826	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2827	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2828	{
2829	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2830	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2831
2832	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2833	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2834	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2835	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2836
2837	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2838	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2839	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2840	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2841	}
2842	else
2843	{
2844	srcViewPort.x = pThis->svga.viewport.x;
2845	srcViewPort.y = pThis->svga.viewport.y;
2846	srcViewPort.cx = pThis->svga.viewport.cx;
2847	srcViewPort.cy = pThis->svga.viewport.cy;
2848	}
2849	RTRECT SrcViewPortRect;
2850	SrcViewPortRect.xLeft = srcViewPort.x;
2851	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2852	SrcViewPortRect.yBottom = srcViewPort.y;
2853	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2854	#endif
2855
2856
2857	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2858	/*
2859	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2860	*/
2861	SVGA3dCopyRect rect;
2862	uint32_t oldVShader, oldPShader;
2863	GLint oldTextureId;
2864
2865	if (cRects == 0)
2866	{
2867	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2868	rect.w = pSurface->pMipmapLevels[0].size.width;
2869	rect.h = pSurface->pMipmapLevels[0].size.height;
2870	pRect = &rect;
2871	cRects = 1;
2872	}
2873
2874	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2875
2876	#if 0
2877	glDisable(GL_CULL_FACE);
2878	glDisable(GL_BLEND);
2879	glDisable(GL_ALPHA_TEST);
2880	glDisable(GL_SCISSOR_TEST);
2881	glDisable(GL_STENCIL_TEST);
2882	glEnable(GL_DEPTH_TEST);
2883	glDepthFunc(GL_ALWAYS);
2884	glDepthMask(GL_TRUE);
2885	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2886	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2887	#endif
2888
2889	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2890
2891	oldVShader = pContext->state.shidVertex;
2892	oldPShader = pContext->state.shidPixel;
2893	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2894	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2895
2896	/* Flush shader changes. */
2897	if (pContext->pShaderContext)
2898	ShaderUpdateState(pContext->pShaderContext, 0);
2899
2900	/* Activate the read and draw framebuffer objects. */
2901	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2902	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2903
2904	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2905	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2906	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2907
2908	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2909	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2910
2911	#if 0
2912	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2913	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2914	#endif
2915
2916	/* Reset the transformation matrices. */
2917	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2918	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2919	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2920	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2921	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2922	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2923	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2924	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2925
2926	for (uint32_t i = 0; i < cRects; i++)
2927	{
2928	float left, right, top, bottom; /* Texture coordinates */
2929	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2930
2931	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2932	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2933	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2934	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2935	pRect[i].w = pThis->svga.viewport.cx;
2936	pRect[i].h = pThis->svga.viewport.cy;
2937
2938	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2939	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2940	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2941	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2942	{
2943	/* Intersection is empty; skip */
2944	continue;
2945	}
2946
2947	left = pRect[i].srcx;
2948	right = pRect[i].srcx + pRect[i].w;
2949	top = pRect[i].srcy + pRect[i].h;
2950	bottom = pRect[i].srcy;
2951
2952	left /= pSurface->pMipmapLevels[0].size.width;
2953	right /= pSurface->pMipmapLevels[0].size.width;
2954	top /= pSurface->pMipmapLevels[0].size.height;
2955	bottom /= pSurface->pMipmapLevels[0].size.height;
2956
2957	vertexLeft = pRect[i].x;
2958	vertexRight = pRect[i].x + pRect[i].w;
2959	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2960	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2961
2962	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2963	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2964	Log(("texture (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", pRect[i].srcx, pSurface->pMipmapLevels[0].size.height - (pRect[i].srcy + pRect[i].h), pRect[i].srcx, pSurface->pMipmapLevels[0].size.height - pRect[i].srcy, pRect[i].srcx + pRect[i].w, pSurface->pMipmapLevels[0].size.height - pRect[i].srcy, pRect[i].srcx + pRect[i].w, pSurface->pMipmapLevels[0].size.height - (pRect[i].srcy + pRect[i].h)));
2965
2966	glBegin(GL_QUADS);
2967
2968	/* bottom left */
2969	glTexCoord2f(left, bottom);
2970	glVertex2i(vertexLeft, vertexBottom);
2971
2972	/* top left */
2973	glTexCoord2f(left, top);
2974	glVertex2i(vertexLeft, vertexTop);
2975
2976	/* top right */
2977	glTexCoord2f(right, top);
2978	glVertex2i(vertexRight, vertexTop);
2979
2980	/* bottom right */
2981	glTexCoord2f(right, bottom);
2982	glVertex2i(vertexRight, vertexBottom);
2983
2984	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2985	}
2986
2987	/* Restore old settings. */
2988	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2989	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2990	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2991	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2992
2993	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2994
2995	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2996	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2997	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2998
2999	#else
3000	/*
3001	* glBlitFramebuffer variant.
3002	*/
3003	/* Activate the read and draw framebuffer objects. */
3004	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
3005	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3006	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
3007	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3008
3009	/* Bind the source objects to the right place. */
3010	Assert(pSurface->targetGL == GL_TEXTURE_2D);
3011	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
3012	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3013
3014
3015	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
3016	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
3017	ASMCompilerBarrier(); /* paranoia */
3018	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
3019
3020	/* If there are no recangles specified, just grab a screenful. */
3021	SVGA3dCopyRect DummyRect;
3022	if (cRects != 0)
3023	{ /* likely */ }
3024	else
3025	{
3026	/** @todo Find the usecase for this or check what the original device does.
3027	* The original code was doing some scaling based on the surface
3028	* size... */
3029	# ifdef DEBUG_bird
3030	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
3031	# endif
3032	DummyRect.x = DummyRect.srcx = 0;
3033	DummyRect.y = DummyRect.srcy = 0;
3034	DummyRect.w = pThis->svga.uWidth;
3035	DummyRect.h = pThis->svga.uHeight;
3036	cRects = 1;
3037	pRect = &DummyRect;
3038	}
3039
3040	/*
3041	* Blit the surface rectangle(s) to the back buffer.
3042	*/
3043	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
3044	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
3045	for (uint32_t i = 0; i < cRects; i++)
3046	{
3047	SVGA3dCopyRect ClippedRect = pRect[i];
3048
3049	/*
3050	* Do some sanity checking and limit width and height, all so we
3051	* don't need to think about wrap-arounds below.
3052	*/
3053	if (RT_LIKELY( ClippedRect.w
3054	&& ClippedRect.x < VMSVGA_MAX_X
3055	&& ClippedRect.srcx < VMSVGA_MAX_X
3056	&& ClippedRect.h
3057	&& ClippedRect.y < VMSVGA_MAX_Y
3058	&& ClippedRect.srcy < VMSVGA_MAX_Y
3059	))
3060	{ /* likely */ }
3061	else
3062	continue;
3063
3064	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
3065	{ /* likely */ }
3066	else
3067	ClippedRect.w = VMSVGA_MAX_X;
3068	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
3069	{ /* likely */ }
3070	else
3071	ClippedRect.h = VMSVGA_MAX_Y;
3072
3073
3074	/*
3075	* Source surface clipping (paranoia). Straight forward.
3076	*/
3077	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
3078	{ /* likely */ }
3079	else
3080	continue;
3081	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
3082	{ /* likely */ }
3083	else
3084	{
3085	AssertFailed(); /* remove if annoying. */
3086	ClippedRect.w = cxSurface - ClippedRect.srcx;
3087	}
3088
3089	if (RT_LIKELY(ClippedRect.srcy < cySurface))
3090	{ /* likely */ }
3091	else
3092	continue;
3093	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
3094	{ /* likely */ }
3095	else
3096	{
3097	AssertFailed(); /* remove if annoying. */
3098	ClippedRect.h = cySurface - ClippedRect.srcy;
3099	}
3100
3101	/*
3102	* Destination viewport clipping - real PITA.
3103	*
3104	* We have to take the following into account here:
3105	* - The source image is Y inverted.
3106	* - The destination framebuffer is in world and not window coordinates,
3107	* just like the source surface. This means working in the first quadrant.
3108	* - The viewport is in window coordinate, that is fourth quadrant and
3109	* negated Y values.
3110	* - The destination framebuffer is not scrolled, so we have to blit
3111	* what's visible into the top of the framebuffer.
3112	*
3113	*
3114	* To illustrate:
3115	*
3116	* source destination 0123456789
3117	* 8 ^---------- 8 ^---------- 0 ----------->
3118	* 7 \| \| 7 \| \| 1 \| \|
3119	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
3120	* 5 \| *** \| 5 \| * \| 3 \| * \|
3121	* 4 \| * \| => 4 \| * \| => 4 \| * \|
3122	* 3 \| * \| 3 \| * \| 5 \| * \|
3123	* 2 \| ******* \| 2 \| \| 6 \| \|
3124	* 1 \| \| 1 \| \| 7 \| \|
3125	* 0 -----------> 0 -----------> 8 v----------
3126	* 0123456789 0123456789 Destination window
3127	*
3128	* From the above, it follows that a destination viewport given in
3129	* window coordinates matches the source exactly when srcy = srcx = 0.
3130	*
3131	* Example (Y only):
3132	* ySrc = 0
3133	* yDst = 0
3134	* cyCopy = 9
3135	* cyScreen = cyCopy
3136	* cySurface >= cyCopy
3137	* yViewport = 5
3138	* cyViewport = 2 (i.e. '\| *** \|'
3139	* '\| \|' )
3140	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3141	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3142	*
3143	* We can see from the illustration that the final result should be:
3144	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3145	* DstRect = (0,2) (11, 4)
3146	*
3147	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3148	* easier to follow:
3149	* SrcRect = (0,5) (11, 7)
3150	*
3151	* From the top, Y values only:
3152	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3153	*
3154	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3155	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3156	* Copy.yDst += cyAdjust = 2;
3157	* Copy.ySrc = unchanged;
3158	* Copy.cx -= cyAdjust = 7;
3159	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3160	*
3161	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3162	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3163	* Copy.yDst = unchanged;
3164	* Copy.ySrc += cyAdjust = 5;
3165	* Copy.cx -= cyAdjust = 2;
3166	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3167	*
3168	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3169	* when the view is resized, moved and otherwise messed with,
3170	* the visible part of the framebuffer is actually the bottom
3171	* one. It's easy to adjust for this, just have to adjust the
3172	* destination rectangle such that yBottom is zero.
3173	*/
3174	/* X - no inversion, so kind of simple. */
3175	if (ClippedRect.x >= DstViewport.x)
3176	{
3177	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3178	{ /* typical */ }
3179	else if (ClippedRect.x < DstViewport.xRight)
3180	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3181	else
3182	continue;
3183	}
3184	else
3185	{
3186	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3187	if (cxAdjust < ClippedRect.w)
3188	{
3189	ClippedRect.w -= cxAdjust;
3190	ClippedRect.x += cxAdjust;
3191	ClippedRect.srcx += cxAdjust;
3192	}
3193	else
3194	continue;
3195
3196	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3197	{ /* typical */ }
3198	else
3199	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3200	}
3201
3202	/* Y - complicated, see above. */
3203	if (ClippedRect.y >= DstViewport.yLowWC)
3204	{
3205	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3206	{ /* typical */ }
3207	else if (ClippedRect.y < DstViewport.yHighWC)
3208	{
3209	/* adjustment #2 */
3210	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3211	ClippedRect.srcy += cyAdjust;
3212	ClippedRect.h -= cyAdjust;
3213	}
3214	else
3215	continue;
3216	}
3217	else
3218	{
3219	/* adjustment #1 */
3220	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3221	if (cyAdjust < ClippedRect.h)
3222	{
3223	ClippedRect.y += cyAdjust;
3224	ClippedRect.h -= cyAdjust;
3225	}
3226	else
3227	continue;
3228
3229	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3230	{ /* typical */ }
3231	else
3232	{
3233	/* adjustment #2 */
3234	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3235	ClippedRect.srcy += cyAdjust;
3236	ClippedRect.h -= cyAdjust;
3237	}
3238	}
3239
3240	/* Calc source rectangle with y flipping wrt destination. */
3241	RTRECT SrcRect;
3242	SrcRect.xLeft = ClippedRect.srcx;
3243	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3244	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3245	SrcRect.yTop = ClippedRect.srcy;
3246
3247	/* Calc destination rectangle. */
3248	RTRECT DstRect;
3249	DstRect.xLeft = ClippedRect.x;
3250	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3251	DstRect.yBottom = ClippedRect.y;
3252	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3253
3254	/* Adjust for viewport. */
3255	DstRect.xLeft -= DstViewport.x;
3256	DstRect.xRight -= DstViewport.x;
3257	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3258	DstRect.yTop -= DstRect.yBottom;
3259	DstRect.yBottom = 0;
3260	# else
3261	DstRect.yBottom += DstViewport.y;
3262	DstRect.yTop += DstViewport.y;
3263	# endif
3264
3265	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3266	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3267	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3268	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3269	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3270	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3271	}
3272
3273	#endif
3274
3275	/*
3276	* Flip the front and back buffers.
3277	*/
3278	#ifdef RT_OS_WINDOWS
3279	BOOL fRef = SwapBuffers(pContext->hdc);
3280	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3281	#elif defined(RT_OS_DARWIN)
3282	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3283	#else
3284	/* show the window if not already done */
3285	if (!pContext->fMapped)
3286	{
3287	XMapWindow(pState->display, pContext->window);
3288	pContext->fMapped = true;
3289	}
3290	/* now swap the buffers, i.e. display the rendering result */
3291	glXSwapBuffers(pState->display, pContext->window);
3292	#endif
3293
3294	/*
3295	* Now we can reset the frame buffer association. Doing it earlier means no
3296	* output on darwin.
3297	*/
3298	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3299	return VINF_SUCCESS;
3300	}
3301
3302	#ifdef RT_OS_LINUX
3303	/**
3304	* X11 event handling thread.
3305	*
3306	* @returns VINF_SUCCESS (ignored)
3307	* @param hThreadSelf thread handle
3308	* @param pvUser pointer to pState structure
3309	*/
3310	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3311	{
3312	RT_NOREF(hThreadSelf);
3313	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3314	while (!pState->bTerminate)
3315	{
3316	while (XPending(pState->display) > 0)
3317	{
3318	XEvent event;
3319	XNextEvent(pState->display, &event);
3320
3321	switch (event.type)
3322	{
3323	default:
3324	break;
3325	}
3326	}
3327	/* sleep for 16ms to not burn too many cycles */
3328	RTThreadSleep(16);
3329	}
3330	return VINF_SUCCESS;
3331	}
3332	#endif // RT_OS_LINUX
3333
3334
3335	/**
3336	* Create a new 3d context
3337	*
3338	* @returns VBox status code.
3339	* @param pThis VGA device instance data.
3340	* @param cid Context id
3341	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3342	*/
3343	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3344	{
3345	int rc;
3346	PVMSVGA3DCONTEXT pContext;
3347	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3348
3349	AssertReturn(pState, VERR_NO_MEMORY);
3350	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3351	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3352	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3353	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3354	#endif
3355
3356	Log(("vmsvga3dContextDefine id %x\n", cid));
3357	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3358	if (pState->idTestContext == SVGA_ID_INVALID)
3359	{
3360	pState->idTestContext = 207;
3361	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3362	AssertRCReturn(rc, rc);
3363	}
3364	#endif
3365
3366	if (cid == VMSVGA3D_SHARED_CTX_ID)
3367	pContext = &pState->SharedCtx;
3368	else
3369	{
3370	if (cid >= pState->cContexts)
3371	{
3372	/* Grow the array. */
3373	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3374	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3375	AssertReturn(pvNew, VERR_NO_MEMORY);
3376	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3377	while (pState->cContexts < cNew)
3378	{
3379	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3380	AssertReturn(pContext, VERR_NO_MEMORY);
3381	pContext->id = SVGA3D_INVALID_ID;
3382	pState->papContexts[pState->cContexts++] = pContext;
3383	}
3384	}
3385	/* If one already exists with this id, then destroy it now. */
3386	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3387	vmsvga3dContextDestroy(pThis, cid);
3388
3389	pContext = pState->papContexts[cid];
3390	}
3391
3392	/*
3393	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3394	*/
3395	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3396	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3397	{
3398	pSharedCtx = &pState->SharedCtx;
3399	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3400	{
3401	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3402	AssertLogRelRCReturn(rc, rc);
3403	}
3404	}
3405
3406	/*
3407	* Initialize the context.
3408	*/
3409	memset(pContext, 0, sizeof(*pContext));
3410	pContext->id = cid;
3411	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3412	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3413
3414	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3415	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3416	pContext->idFramebuffer = OPENGL_INVALID_ID;
3417	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3418	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3419
3420	rc = ShaderContextCreate(&pContext->pShaderContext);
3421	AssertRCReturn(rc, rc);
3422
3423	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3424	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3425
3426	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3427
3428	#ifdef RT_OS_WINDOWS
3429	/* Create a context window. */
3430	CREATESTRUCT cs;
3431	cs.lpCreateParams = NULL;
3432	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3433	# ifdef DEBUG_GFX_WINDOW
3434	cs.lpszName = (char *)RTMemAllocZ(256);
3435	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3436	# else
3437	cs.lpszName = NULL;
3438	# endif
3439	cs.lpszClass = 0;
3440	# ifdef DEBUG_GFX_WINDOW
3441	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3442	# else
3443	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3444	# endif
3445	cs.x = 0;
3446	cs.y = 0;
3447	cs.cx = pThis->svga.uWidth;
3448	cs.cy = pThis->svga.uHeight;
3449	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3450	cs.hMenu = NULL;
3451	cs.hInstance = pState->hInstance;
3452
3453	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3454	AssertRCReturn(rc, rc);
3455
3456	pContext->hdc = GetDC(pContext->hwnd);
3457	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3458
3459	PIXELFORMATDESCRIPTOR pfd = {
3460	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3461	1, /* version number */
3462	PFD_DRAW_TO_WINDOW \| /* support window */
3463	PFD_DOUBLEBUFFER \| /* support double buffering */
3464	PFD_SUPPORT_OPENGL, /* support OpenGL */
3465	PFD_TYPE_RGBA, /* RGBA type */
3466	24, /* 24-bit color depth */
3467	0, 0, 0, 0, 0, 0, /* color bits ignored */
3468	8, /* alpha buffer */
3469	0, /* shift bit ignored */
3470	0, /* no accumulation buffer */
3471	0, 0, 0, 0, /* accum bits ignored */
3472	16, /* set depth buffer */
3473	16, /* set stencil buffer */
3474	0, /* no auxiliary buffer */
3475	PFD_MAIN_PLANE, /* main layer */
3476	0, /* reserved */
3477	0, 0, 0 /* layer masks ignored */
3478	};
3479	int pixelFormat;
3480	BOOL ret;
3481
3482	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3483	/** @todo is this really necessary?? */
3484	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3485	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3486
3487	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3488	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3489
3490	pContext->hglrc = wglCreateContext(pContext->hdc);
3491	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3492
3493	if (pSharedCtx)
3494	{
3495	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3496	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3497	}
3498
3499	#elif defined(RT_OS_DARWIN)
3500	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3501
3502	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3503	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3504	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3505	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3506	pThis->svga.uWidth, pThis->svga.uHeight,
3507	pShareContext, pContext->fOtherProfile);
3508
3509	#else
3510	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3511
3512	if (pState->display == NULL)
3513	{
3514	/* get an X display and make sure we have glX 1.3 */
3515	pState->display = XOpenDisplay(0);
3516	Assert(pState->display);
3517	int glxMajor, glxMinor;
3518	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3519	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3520	/* start our X event handling thread */
3521	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3522	if (RT_FAILURE(rc))
3523	{
3524	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3525	return rc;
3526	}
3527	}
3528	int attrib[] =
3529	{
3530	GLX_RGBA,
3531	GLX_RED_SIZE, 1,
3532	GLX_GREEN_SIZE, 1,
3533	GLX_BLUE_SIZE, 1,
3534	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3535	GLX_DOUBLEBUFFER,
3536	None
3537	};
3538	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3539	XSetWindowAttributes swa;
3540	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3541	swa.border_pixel = 0;
3542	swa.background_pixel = 0;
3543	swa.event_mask = StructureNotifyMask \| ExposureMask;
3544	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3545	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3546	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3547	0, vi->depth, InputOutput,
3548	vi->visual, flags, &swa);
3549	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3550	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3551
3552	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3553
3554	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3555	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3556	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3557	#endif
3558
3559	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3560
3561	/* NULL during the first PowerOn call. */
3562	if (pState->ext.glGenFramebuffers)
3563	{
3564	/* Create a framebuffer object for this context. */
3565	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3566	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3567
3568	/* Bind the object to the framebuffer target. */
3569	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3570	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3571
3572	/* Create read and draw framebuffer objects for this context. */
3573	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3574	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3575
3576	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3577	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3578
3579	}
3580	#if 0
3581	/** @todo move to shader lib!!! */
3582	/* Clear the screen */
3583	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3584
3585	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3586	glClearIndex(0);
3587	glClearDepth(1);
3588	glClearStencil(0xffff);
3589	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3590	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3591	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3592	if (pState->ext.glProvokingVertex)
3593	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3594	/** @todo move to shader lib!!! */
3595	#endif
3596	return VINF_SUCCESS;
3597	}
3598
3599
3600	/**
3601	* Create a new 3d context
3602	*
3603	* @returns VBox status code.
3604	* @param pThis VGA device instance data.
3605	* @param cid Context id
3606	*/
3607	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3608	{
3609	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3610	}
3611
3612	/**
3613	* Destroys a 3d context.
3614	*
3615	* @returns VBox status code.
3616	* @param pThis VGA device instance data.
3617	* @param pContext The context to destroy.
3618	* @param cid Context id
3619	*/
3620	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3621	{
3622	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3623	AssertReturn(pState, VERR_NO_MEMORY);
3624	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3625	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3626	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3627
3628	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3629
3630	/* Destroy all leftover pixel shaders. */
3631	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3632	{
3633	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3634	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3635	}
3636	if (pContext->paPixelShader)
3637	RTMemFree(pContext->paPixelShader);
3638
3639	/* Destroy all leftover vertex shaders. */
3640	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3641	{
3642	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3643	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3644	}
3645	if (pContext->paVertexShader)
3646	RTMemFree(pContext->paVertexShader);
3647
3648	if (pContext->state.paVertexShaderConst)
3649	RTMemFree(pContext->state.paVertexShaderConst);
3650	if (pContext->state.paPixelShaderConst)
3651	RTMemFree(pContext->state.paPixelShaderConst);
3652
3653	if (pContext->pShaderContext)
3654	{
3655	int rc = ShaderContextDestroy(pContext->pShaderContext);
3656	AssertRC(rc);
3657	}
3658
3659	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3660	{
3661	/* Unbind the object from the framebuffer target. */
3662	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3663	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3664	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3666
3667	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3668	{
3669	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3670	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3671	}
3672	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3673	{
3674	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3675	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3676	}
3677	}
3678
3679	vmsvga3dOcclusionQueryDelete(pState, pContext);
3680
3681	#ifdef RT_OS_WINDOWS
3682	wglMakeCurrent(pContext->hdc, NULL);
3683	wglDeleteContext(pContext->hglrc);
3684	ReleaseDC(pContext->hwnd, pContext->hdc);
3685
3686	/* Destroy the window we've created. */
3687	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3688	AssertRC(rc);
3689	#elif defined(RT_OS_DARWIN)
3690	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3691	#elif defined(RT_OS_LINUX)
3692	glXMakeCurrent(pState->display, None, NULL);
3693	glXDestroyContext(pState->display, pContext->glxContext);
3694	XDestroyWindow(pState->display, pContext->window);
3695	#endif
3696
3697	memset(pContext, 0, sizeof(*pContext));
3698	pContext->id = SVGA3D_INVALID_ID;
3699
3700	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3701	return VINF_SUCCESS;
3702	}
3703
3704	/**
3705	* Destroy an existing 3d context
3706	*
3707	* @returns VBox status code.
3708	* @param pThis VGA device instance data.
3709	* @param cid Context id
3710	*/
3711	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3712	{
3713	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3714	AssertReturn(pState, VERR_WRONG_ORDER);
3715
3716	/*
3717	* Resolve the context and hand it to the common worker function.
3718	*/
3719	if ( cid < pState->cContexts
3720	&& pState->papContexts[cid]->id == cid)
3721	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3722
3723	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3724	return VINF_SUCCESS;
3725	}
3726
3727	/**
3728	* Worker for vmsvga3dChangeMode that resizes a context.
3729	*
3730	* @param pThis The VGA device instance data.
3731	* @param pState The VMSVGA3d state.
3732	* @param pContext The context.
3733	*/
3734	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3735	{
3736	#ifdef RT_OS_WINDOWS
3737	/* Resize the window. */
3738	CREATESTRUCT cs;
3739	RT_ZERO(cs);
3740	cs.cx = pThis->svga.uWidth;
3741	cs.cy = pThis->svga.uHeight;
3742	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3743	AssertRC(rc);
3744
3745	#elif defined(RT_OS_DARWIN)
3746	RT_NOREF(pState);
3747	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3748
3749	#elif defined(RT_OS_LINUX)
3750	XWindowChanges wc;
3751	wc.width = pThis->svga.uWidth;
3752	wc.height = pThis->svga.uHeight;
3753	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3754	#endif
3755	}
3756
3757	/* Handle resize */
3758	int vmsvga3dChangeMode(PVGASTATE pThis)
3759	{
3760	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3761	AssertReturn(pState, VERR_NO_MEMORY);
3762
3763	/* Resize the shared context too. */
3764	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3765	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3766
3767	/* Resize all active contexts. */
3768	for (uint32_t i = 0; i < pState->cContexts; i++)
3769	{
3770	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3771	if (pContext->id != SVGA3D_INVALID_ID)
3772	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3773	}
3774
3775	return VINF_SUCCESS;
3776	}
3777
3778
3779	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3780	{
3781	PVMSVGA3DCONTEXT pContext;
3782	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3783	AssertReturn(pState, VERR_NO_MEMORY);
3784	bool fModelViewChanged = false;
3785
3786	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3787
3788	if ( cid >= pState->cContexts
3789	\|\| pState->papContexts[cid]->id != cid)
3790	{
3791	Log(("vmsvga3dSetTransform invalid context id!\n"));
3792	return VERR_INVALID_PARAMETER;
3793	}
3794	pContext = pState->papContexts[cid];
3795	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3796
3797	/* Save this matrix for vm state save/restore. */
3798	pContext->state.aTransformState[type].fValid = true;
3799	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3800	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3801
3802	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)));
3803	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)));
3804	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)));
3805	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)));
3806
3807	switch (type)
3808	{
3809	case SVGA3D_TRANSFORM_VIEW:
3810	/* View * World = Model View */
3811	glMatrixMode(GL_MODELVIEW);
3812	glLoadMatrixf(matrix);
3813	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3814	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3816	fModelViewChanged = true;
3817	break;
3818
3819	case SVGA3D_TRANSFORM_PROJECTION:
3820	{
3821	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3822	AssertRCReturn(rc, rc);
3823	break;
3824	}
3825
3826	case SVGA3D_TRANSFORM_TEXTURE0:
3827	glMatrixMode(GL_TEXTURE);
3828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3829	glLoadMatrixf(matrix);
3830	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3831	break;
3832
3833	case SVGA3D_TRANSFORM_TEXTURE1:
3834	case SVGA3D_TRANSFORM_TEXTURE2:
3835	case SVGA3D_TRANSFORM_TEXTURE3:
3836	case SVGA3D_TRANSFORM_TEXTURE4:
3837	case SVGA3D_TRANSFORM_TEXTURE5:
3838	case SVGA3D_TRANSFORM_TEXTURE6:
3839	case SVGA3D_TRANSFORM_TEXTURE7:
3840	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3841	return VERR_INVALID_PARAMETER;
3842
3843	case SVGA3D_TRANSFORM_WORLD:
3844	/* View * World = Model View */
3845	glMatrixMode(GL_MODELVIEW);
3846	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3847	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3848	else
3849	glLoadIdentity();
3850	glMultMatrixf(matrix);
3851	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3852	fModelViewChanged = true;
3853	break;
3854
3855	case SVGA3D_TRANSFORM_WORLD1:
3856	case SVGA3D_TRANSFORM_WORLD2:
3857	case SVGA3D_TRANSFORM_WORLD3:
3858	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3859	return VERR_INVALID_PARAMETER;
3860
3861	default:
3862	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3863	return VERR_INVALID_PARAMETER;
3864	}
3865
3866	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3867	if (fModelViewChanged)
3868	{
3869	/* Reprogram the clip planes. */
3870	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3871	{
3872	if (pContext->state.aClipPlane[j].fValid == true)
3873	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3874	}
3875
3876	/* Reprogram the light data. */
3877	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3878	{
3879	if (pContext->state.aLightData[j].fValidData == true)
3880	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3881	}
3882	}
3883
3884	return VINF_SUCCESS;
3885	}
3886
3887	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3888	{
3889	PVMSVGA3DCONTEXT pContext;
3890	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3891	AssertReturn(pState, VERR_NO_MEMORY);
3892
3893	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3894
3895	if ( cid >= pState->cContexts
3896	\|\| pState->papContexts[cid]->id != cid)
3897	{
3898	Log(("vmsvga3dSetZRange invalid context id!\n"));
3899	return VERR_INVALID_PARAMETER;
3900	}
3901	pContext = pState->papContexts[cid];
3902	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3903
3904	pContext->state.zRange = zRange;
3905	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3906
3907	if (zRange.min < -1.0)
3908	zRange.min = -1.0;
3909	if (zRange.max > 1.0)
3910	zRange.max = 1.0;
3911
3912	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3913	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3914	return VINF_SUCCESS;
3915	}
3916
3917	/**
3918	* Convert SVGA blend op value to its OpenGL equivalent
3919	*/
3920	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3921	{
3922	switch (blendOp)
3923	{
3924	case SVGA3D_BLENDOP_ZERO:
3925	return GL_ZERO;
3926	case SVGA3D_BLENDOP_ONE:
3927	return GL_ONE;
3928	case SVGA3D_BLENDOP_SRCCOLOR:
3929	return GL_SRC_COLOR;
3930	case SVGA3D_BLENDOP_INVSRCCOLOR:
3931	return GL_ONE_MINUS_SRC_COLOR;
3932	case SVGA3D_BLENDOP_SRCALPHA:
3933	return GL_SRC_ALPHA;
3934	case SVGA3D_BLENDOP_INVSRCALPHA:
3935	return GL_ONE_MINUS_SRC_ALPHA;
3936	case SVGA3D_BLENDOP_DESTALPHA:
3937	return GL_DST_ALPHA;
3938	case SVGA3D_BLENDOP_INVDESTALPHA:
3939	return GL_ONE_MINUS_DST_ALPHA;
3940	case SVGA3D_BLENDOP_DESTCOLOR:
3941	return GL_DST_COLOR;
3942	case SVGA3D_BLENDOP_INVDESTCOLOR:
3943	return GL_ONE_MINUS_DST_COLOR;
3944	case SVGA3D_BLENDOP_SRCALPHASAT:
3945	return GL_SRC_ALPHA_SATURATE;
3946	case SVGA3D_BLENDOP_BLENDFACTOR:
3947	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3948	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3949	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3950	default:
3951	AssertFailed();
3952	return GL_ONE;
3953	}
3954	}
3955
3956	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3957	{
3958	switch (blendEq)
3959	{
3960	case SVGA3D_BLENDEQ_ADD:
3961	return GL_FUNC_ADD;
3962	case SVGA3D_BLENDEQ_SUBTRACT:
3963	return GL_FUNC_SUBTRACT;
3964	case SVGA3D_BLENDEQ_REVSUBTRACT:
3965	return GL_FUNC_REVERSE_SUBTRACT;
3966	case SVGA3D_BLENDEQ_MINIMUM:
3967	return GL_MIN;
3968	case SVGA3D_BLENDEQ_MAXIMUM:
3969	return GL_MAX;
3970	default:
3971	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3972	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3973	return GL_FUNC_ADD;
3974	}
3975	}
3976
3977	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3978	{
3979	switch (cmpFunc)
3980	{
3981	case SVGA3D_CMP_NEVER:
3982	return GL_NEVER;
3983	case SVGA3D_CMP_LESS:
3984	return GL_LESS;
3985	case SVGA3D_CMP_EQUAL:
3986	return GL_EQUAL;
3987	case SVGA3D_CMP_LESSEQUAL:
3988	return GL_LEQUAL;
3989	case SVGA3D_CMP_GREATER:
3990	return GL_GREATER;
3991	case SVGA3D_CMP_NOTEQUAL:
3992	return GL_NOTEQUAL;
3993	case SVGA3D_CMP_GREATEREQUAL:
3994	return GL_GEQUAL;
3995	case SVGA3D_CMP_ALWAYS:
3996	return GL_ALWAYS;
3997	default:
3998	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3999	return GL_LESS;
4000	}
4001	}
4002
4003	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
4004	{
4005	switch (stencilOp)
4006	{
4007	case SVGA3D_STENCILOP_KEEP:
4008	return GL_KEEP;
4009	case SVGA3D_STENCILOP_ZERO:
4010	return GL_ZERO;
4011	case SVGA3D_STENCILOP_REPLACE:
4012	return GL_REPLACE;
4013	case SVGA3D_STENCILOP_INCRSAT:
4014	return GL_INCR_WRAP;
4015	case SVGA3D_STENCILOP_DECRSAT:
4016	return GL_DECR_WRAP;
4017	case SVGA3D_STENCILOP_INVERT:
4018	return GL_INVERT;
4019	case SVGA3D_STENCILOP_INCR:
4020	return GL_INCR;
4021	case SVGA3D_STENCILOP_DECR:
4022	return GL_DECR;
4023	default:
4024	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
4025	return GL_KEEP;
4026	}
4027	}
4028
4029	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
4030	{
4031	uint32_t val = UINT32_MAX; /* Shut up MSC. */
4032	PVMSVGA3DCONTEXT pContext;
4033	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4034	AssertReturn(pState, VERR_NO_MEMORY);
4035
4036	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
4037
4038	if ( cid >= pState->cContexts
4039	\|\| pState->papContexts[cid]->id != cid)
4040	{
4041	Log(("vmsvga3dSetRenderState invalid context id!\n"));
4042	return VERR_INVALID_PARAMETER;
4043	}
4044	pContext = pState->papContexts[cid];
4045	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4046
4047	for (unsigned i = 0; i < cRenderStates; i++)
4048	{
4049	GLenum enableCap = ~(GLenum)0;
4050	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
4051	/* Save the render state for vm state saving. */
4052	if (pRenderState[i].state < SVGA3D_RS_MAX)
4053	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
4054
4055	switch (pRenderState[i].state)
4056	{
4057	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
4058	enableCap = GL_DEPTH_TEST;
4059	val = pRenderState[i].uintValue;
4060	break;
4061
4062	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
4063	glDepthMask(!!pRenderState[i].uintValue);
4064	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4065	break;
4066
4067	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
4068	enableCap = GL_ALPHA_TEST;
4069	val = pRenderState[i].uintValue;
4070	break;
4071
4072	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
4073	enableCap = GL_DITHER;
4074	val = pRenderState[i].uintValue;
4075	break;
4076
4077	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
4078	enableCap = GL_FOG;
4079	val = pRenderState[i].uintValue;
4080	break;
4081
4082	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
4083	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4084	break;
4085
4086	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
4087	enableCap = GL_LIGHTING;
4088	val = pRenderState[i].uintValue;
4089	break;
4090
4091	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
4092	/* not applicable */
4093	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4094	break;
4095
4096	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
4097	enableCap = GL_POINT_SPRITE_ARB;
4098	val = pRenderState[i].uintValue;
4099	break;
4100
4101	case SVGA3D_RS_POINTSIZE: /* float */
4102	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4103	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4104	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4105	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4106	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4107
4108	glPointSize(pRenderState[i].floatValue);
4109	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4110	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4111	break;
4112
4113	case SVGA3D_RS_POINTSIZEMIN: /* float */
4114	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4115	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4116	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4117	break;
4118
4119	case SVGA3D_RS_POINTSIZEMAX: /* float */
4120	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4122	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4123	break;
4124
4125	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4126	case SVGA3D_RS_POINTSCALE_A: /* float */
4127	case SVGA3D_RS_POINTSCALE_B: /* float */
4128	case SVGA3D_RS_POINTSCALE_C: /* float */
4129	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4130	break;
4131
4132	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4133	{
4134	GLfloat color[4]; /* red, green, blue, alpha */
4135
4136	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4137
4138	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4140	break;
4141	}
4142
4143	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4144	{
4145	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4146	for (uint32_t j = 0; j <= 5; j++)
4147	{
4148	if (pRenderState[i].uintValue & RT_BIT(j))
4149	glEnable(GL_CLIP_PLANE0 + j);
4150	else
4151	glDisable(GL_CLIP_PLANE0 + j);
4152	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4153	}
4154	break;
4155	}
4156
4157	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4158	{
4159	GLfloat color[4]; /* red, green, blue, alpha */
4160
4161	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4162
4163	glFogfv(GL_FOG_COLOR, color);
4164	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4165	break;
4166	}
4167
4168	case SVGA3D_RS_FOGSTART: /* float */
4169	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4171	break;
4172
4173	case SVGA3D_RS_FOGEND: /* float */
4174	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4175	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4176	break;
4177
4178	case SVGA3D_RS_FOGDENSITY: /* float */
4179	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4181	break;
4182
4183	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4184	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4186	break;
4187
4188	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4189	{
4190	SVGA3dFogMode mode;
4191	mode.uintValue = pRenderState[i].uintValue;
4192
4193	enableCap = GL_FOG_MODE;
4194	switch (mode.s.function)
4195	{
4196	case SVGA3D_FOGFUNC_EXP:
4197	val = GL_EXP;
4198	break;
4199	case SVGA3D_FOGFUNC_EXP2:
4200	val = GL_EXP2;
4201	break;
4202	case SVGA3D_FOGFUNC_LINEAR:
4203	val = GL_LINEAR;
4204	break;
4205	default:
4206	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4207	break;
4208	}
4209
4210	/** @todo how to switch between vertex and pixel fog modes??? */
4211	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4212	#if 0
4213	/* The fog type determines the render state. */
4214	switch (mode.s.type)
4215	{
4216	case SVGA3D_FOGTYPE_VERTEX:
4217	renderState = D3DRS_FOGVERTEXMODE;
4218	break;
4219	case SVGA3D_FOGTYPE_PIXEL:
4220	renderState = D3DRS_FOGTABLEMODE;
4221	break;
4222	default:
4223	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4224	break;
4225	}
4226	#endif
4227
4228	/* Set the fog base to depth or range. */
4229	switch (mode.s.base)
4230	{
4231	case SVGA3D_FOGBASE_DEPTHBASED:
4232	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4233	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4234	break;
4235	case SVGA3D_FOGBASE_RANGEBASED:
4236	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4237	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4238	break;
4239	default:
4240	/* ignore */
4241	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4242	break;
4243	}
4244	break;
4245	}
4246
4247	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4248	{
4249	SVGA3dFillMode mode;
4250
4251	mode.uintValue = pRenderState[i].uintValue;
4252
4253	switch (mode.s.mode)
4254	{
4255	case SVGA3D_FILLMODE_POINT:
4256	val = GL_POINT;
4257	break;
4258	case SVGA3D_FILLMODE_LINE:
4259	val = GL_LINE;
4260	break;
4261	case SVGA3D_FILLMODE_FILL:
4262	val = GL_FILL;
4263	break;
4264	default:
4265	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4266	break;
4267	}
4268	/* @note only front and back faces */
4269	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4270	glPolygonMode(GL_FRONT_AND_BACK, val);
4271	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4272	break;
4273	}
4274
4275	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4276	switch (pRenderState[i].uintValue)
4277	{
4278	case SVGA3D_SHADEMODE_FLAT:
4279	val = GL_FLAT;
4280	break;
4281
4282	case SVGA3D_SHADEMODE_SMOOTH:
4283	val = GL_SMOOTH;
4284	break;
4285
4286	default:
4287	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4288	break;
4289	}
4290
4291	glShadeModel(val);
4292	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4293	break;
4294
4295	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4296	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4297	/** @todo */
4298	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4299	/*
4300	renderState = D3DRS_LINEPATTERN;
4301	val = pRenderState[i].uintValue;
4302	*/
4303	break;
4304
4305	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4306	enableCap = GL_LINE_SMOOTH;
4307	val = pRenderState[i].uintValue;
4308	break;
4309
4310	case SVGA3D_RS_LINEWIDTH: /* float */
4311	glLineWidth(pRenderState[i].floatValue);
4312	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4313	break;
4314
4315	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4316	{
4317	/* Refresh the blending state based on the new enable setting.
4318	* This will take existing states and set them using either glBlend* or glBlend*Separate.
4319	*/
4320	static SVGA3dRenderStateName const saRefreshState[] =
4321	{
4322	SVGA3D_RS_SRCBLEND,
4323	SVGA3D_RS_BLENDEQUATION
4324	};
4325	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4326	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4327	{
4328	renderstate[j].state = saRefreshState[j];
4329	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4330	}
4331
4332	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4333	AssertRCReturn(rc, rc);
4334
4335	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4336	continue; /* Ignore if blend is enabled */
4337	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4338	} RT_FALL_THRU();
4339
4340	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4341	enableCap = GL_BLEND;
4342	val = pRenderState[i].uintValue;
4343	break;
4344
4345	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4346	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4347	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4348	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4349	{
4350	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4351	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4352
4353	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4355	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4357	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4358	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4359	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4360	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4361
4362	switch (pRenderState[i].state)
4363	{
4364	case SVGA3D_RS_SRCBLEND:
4365	srcRGB = blendop;
4366	break;
4367	case SVGA3D_RS_DSTBLEND:
4368	dstRGB = blendop;
4369	break;
4370	case SVGA3D_RS_SRCBLENDALPHA:
4371	srcAlpha = blendop;
4372	break;
4373	case SVGA3D_RS_DSTBLENDALPHA:
4374	dstAlpha = blendop;
4375	break;
4376	default:
4377	/* not possible; shut up gcc */
4378	AssertFailed();
4379	break;
4380	}
4381
4382	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4383	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4384	else
4385	glBlendFunc(srcRGB, dstRGB);
4386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4387	break;
4388	}
4389
4390	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4391	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4392	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4393	{
4394	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4395	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4396	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4397	}
4398	else
4399	{
4400	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4401	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4402	#else
4403	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4404	#endif
4405	}
4406	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4407	break;
4408
4409	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4410	{
4411	GLfloat red, green, blue, alpha;
4412
4413	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4414
4415	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4416	glBlendColor(red, green, blue, alpha);
4417	#else
4418	pState->ext.glBlendColor(red, green, blue, alpha);
4419	#endif
4420	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4421	break;
4422	}
4423
4424	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4425	{
4426	GLenum mode = GL_BACK; /* default for OpenGL */
4427
4428	switch (pRenderState[i].uintValue)
4429	{
4430	case SVGA3D_FACE_NONE:
4431	break;
4432	case SVGA3D_FACE_FRONT:
4433	mode = GL_FRONT;
4434	break;
4435	case SVGA3D_FACE_BACK:
4436	mode = GL_BACK;
4437	break;
4438	case SVGA3D_FACE_FRONT_BACK:
4439	mode = GL_FRONT_AND_BACK;
4440	break;
4441	default:
4442	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4443	break;
4444	}
4445	enableCap = GL_CULL_FACE;
4446	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4447	{
4448	glCullFace(mode);
4449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4450	val = 1;
4451	}
4452	else
4453	val = 0;
4454	break;
4455	}
4456
4457	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4458	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4459	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4460	break;
4461
4462	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4463	{
4464	GLclampf ref;
4465
4466	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4468	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4469	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4470	break;
4471	}
4472
4473	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4474	{
4475	GLint func;
4476
4477	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4479	glAlphaFunc(func, pRenderState[i].floatValue);
4480	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4481	break;
4482	}
4483
4484	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4485	{
4486	/* Refresh the stencil state based on the new enable setting.
4487	* This will take existing states and set them using either glStencil or glStencil*Separate.
4488	*/
4489	static SVGA3dRenderStateName const saRefreshState[] =
4490	{
4491	SVGA3D_RS_STENCILFUNC,
4492	SVGA3D_RS_STENCILFAIL,
4493	SVGA3D_RS_CCWSTENCILFUNC,
4494	SVGA3D_RS_CCWSTENCILFAIL
4495	};
4496	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4497	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4498	{
4499	renderstate[j].state = saRefreshState[j];
4500	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4501	}
4502
4503	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4504	AssertRCReturn(rc, rc);
4505
4506	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4507	continue; /* Ignore if stencil is enabled */
4508	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4509	} RT_FALL_THRU();
4510
4511	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4512	enableCap = GL_STENCIL_TEST;
4513	val = pRenderState[i].uintValue;
4514	break;
4515
4516	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4517	case SVGA3D_RS_STENCILREF: /* uint32_t */
4518	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4519	{
4520	GLint func, ref;
4521	GLuint mask;
4522
4523	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4524	glGetIntegerv(GL_STENCIL_FUNC, &func);
4525	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4526	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4527	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4528	glGetIntegerv(GL_STENCIL_REF, &ref);
4529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4530
4531	/* Update the changed value. */
4532	switch (pRenderState[i].state)
4533	{
4534	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4535	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4536	break;
4537
4538	case SVGA3D_RS_STENCILREF: /* uint32_t */
4539	ref = pRenderState[i].uintValue;
4540	break;
4541
4542	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4543	mask = pRenderState[i].uintValue;
4544	break;
4545
4546	default:
4547	/* not possible; shut up gcc */
4548	AssertFailed();
4549	break;
4550	}
4551
4552	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4553	{
4554	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4555	}
4556	else
4557	{
4558	glStencilFunc(func, ref, mask);
4559	}
4560	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4561	break;
4562	}
4563
4564	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4565	glStencilMask(pRenderState[i].uintValue);
4566	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4567	break;
4568
4569	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4570	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4571	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4572	{
4573	GLint sfail, dpfail, dppass;
4574	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4575
4576	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4577	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4578	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4579	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4580	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4581	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4582
4583	switch (pRenderState[i].state)
4584	{
4585	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4586	sfail = stencilop;
4587	break;
4588	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4589	dpfail = stencilop;
4590	break;
4591	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4592	dppass = stencilop;
4593	break;
4594	default:
4595	/* not possible; shut up gcc */
4596	AssertFailed();
4597	break;
4598	}
4599	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4600	{
4601	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4602	}
4603	else
4604	{
4605	glStencilOp(sfail, dpfail, dppass);
4606	}
4607	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4608	break;
4609	}
4610
4611	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4612	{
4613	GLint ref;
4614	GLuint mask;
4615	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4616
4617	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4618	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4619	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4620	glGetIntegerv(GL_STENCIL_REF, &ref);
4621	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4622
4623	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4624	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4625	break;
4626	}
4627
4628	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4629	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4630	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4631	{
4632	GLint sfail, dpfail, dppass;
4633	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4634
4635	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4636	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4637	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4638	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4639	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4640	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4641
4642	switch (pRenderState[i].state)
4643	{
4644	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4645	sfail = stencilop;
4646	break;
4647	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4648	dpfail = stencilop;
4649	break;
4650	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4651	dppass = stencilop;
4652	break;
4653	default:
4654	/* not possible; shut up gcc */
4655	AssertFailed();
4656	break;
4657	}
4658	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4659	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4660	break;
4661	}
4662
4663	case SVGA3D_RS_ZBIAS: /* float */
4664	/** @todo unknown meaning; depth bias is not identical
4665	renderState = D3DRS_DEPTHBIAS;
4666	val = pRenderState[i].uintValue;
4667	*/
4668	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4669	break;
4670
4671	case SVGA3D_RS_DEPTHBIAS: /* float */
4672	{
4673	GLfloat factor;
4674
4675	/** @todo not sure if the d3d & ogl definitions are identical. */
4676
4677	/* Do not change the factor part. */
4678	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4679	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4680
4681	glPolygonOffset(factor, pRenderState[i].floatValue);
4682	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4683	break;
4684	}
4685
4686	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4687	{
4688	GLfloat units;
4689
4690	/** @todo not sure if the d3d & ogl definitions are identical. */
4691
4692	/* Do not change the factor part. */
4693	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4694	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4695
4696	glPolygonOffset(pRenderState[i].floatValue, units);
4697	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4698	break;
4699	}
4700
4701	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4702	{
4703	GLboolean red, green, blue, alpha;
4704	SVGA3dColorMask mask;
4705
4706	mask.uintValue = pRenderState[i].uintValue;
4707
4708	red = mask.s.red;
4709	green = mask.s.green;
4710	blue = mask.s.blue;
4711	alpha = mask.s.alpha;
4712
4713	glColorMask(red, green, blue, alpha);
4714	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4715	break;
4716	}
4717
4718	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4719	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4720	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4721	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4722	break;
4723
4724	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4725	enableCap = GL_SCISSOR_TEST;
4726	val = pRenderState[i].uintValue;
4727	break;
4728
4729	#if 0
4730	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4731	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4732	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4733	val = pRenderState[i].uintValue;
4734	break;
4735
4736	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4737	renderState = D3DRS_SPECULARMATERIALSOURCE;
4738	val = pRenderState[i].uintValue;
4739	break;
4740
4741	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4742	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4743	val = pRenderState[i].uintValue;
4744	break;
4745
4746	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4747	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4748	val = pRenderState[i].uintValue;
4749	break;
4750	#endif
4751
4752	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4753	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4754	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4755	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4756	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4757	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4758	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4759	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4760	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4761	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4762	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4763	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4764	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4765	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4766	break;
4767
4768	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4769	case SVGA3D_RS_TWEENFACTOR: /* float */
4770	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4771	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4772	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4773	break;
4774
4775	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4776	enableCap = GL_MULTISAMPLE;
4777	val = pRenderState[i].uintValue;
4778	break;
4779
4780	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4781	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4782	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4783	break;
4784
4785	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4786	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4787	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4788	/*
4789	renderState = D3DRS_COORDINATETYPE;
4790	val = pRenderState[i].uintValue;
4791	*/
4792	break;
4793
4794	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4795	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4796	/* Invert the selected mode because of y-inversion (?) */
4797	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4798	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4799	break;
4800
4801	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4802	//AssertFailed();
4803	/*
4804	D3DRS_SRGBWRITEENABLE ??
4805	renderState = D3DRS_OUTPUTGAMMA;
4806	val = pRenderState[i].uintValue;
4807	*/
4808	break;
4809
4810	#if 0
4811
4812	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4813	//AssertFailed();
4814	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4815	val = pRenderState[i].uintValue;
4816	break;
4817
4818	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4819	renderState = D3DRS_TEXTUREFACTOR;
4820	val = pRenderState[i].uintValue;
4821	break;
4822
4823	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4824	renderState = D3DRS_LOCALVIEWER;
4825	val = pRenderState[i].uintValue;
4826	break;
4827
4828	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4829	AssertFailed();
4830	/*
4831	renderState = D3DRS_ZVISIBLE;
4832	val = pRenderState[i].uintValue;
4833	*/
4834	break;
4835
4836	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4837	renderState = D3DRS_CLIPPING;
4838	val = pRenderState[i].uintValue;
4839	break;
4840
4841	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4842	glTexParameter GL_TEXTURE_WRAP_S
4843	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4844	renderState = D3DRS_WRAP0;
4845	val = pRenderState[i].uintValue;
4846	break;
4847
4848	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4849	glTexParameter GL_TEXTURE_WRAP_T
4850	renderState = D3DRS_WRAP1;
4851	val = pRenderState[i].uintValue;
4852	break;
4853
4854	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4855	glTexParameter GL_TEXTURE_WRAP_R
4856	renderState = D3DRS_WRAP2;
4857	val = pRenderState[i].uintValue;
4858	break;
4859
4860
4861	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4862	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4863	val = pRenderState[i].uintValue;
4864	break;
4865
4866
4867	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4868	renderState = D3DRS_BLENDOPALPHA;
4869	val = pRenderState[i].uintValue;
4870	break;
4871
4872	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4873	AssertFailed();
4874	/*
4875	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4876	val = pRenderState[i].uintValue;
4877	*/
4878	break;
4879
4880	#endif
4881	default:
4882	AssertFailed();
4883	break;
4884	}
4885
4886	if (enableCap != ~(GLenum)0)
4887	{
4888	if (val)
4889	glEnable(enableCap);
4890	else
4891	glDisable(enableCap);
4892	}
4893	}
4894
4895	return VINF_SUCCESS;
4896	}
4897
4898	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4899	{
4900	PVMSVGA3DCONTEXT pContext;
4901	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4902	PVMSVGA3DSURFACE pRenderTarget;
4903
4904	AssertReturn(pState, VERR_NO_MEMORY);
4905	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4906
4907	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4908
4909	if ( cid >= pState->cContexts
4910	\|\| pState->papContexts[cid]->id != cid)
4911	{
4912	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4913	return VERR_INVALID_PARAMETER;
4914	}
4915	pContext = pState->papContexts[cid];
4916	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4917
4918	/* Save for vm state save/restore. */
4919	pContext->state.aRenderTargets[type] = target.sid;
4920
4921	if (target.sid == SVGA3D_INVALID_ID)
4922	{
4923	/* Disable render target. */
4924	switch (type)
4925	{
4926	case SVGA3D_RT_DEPTH:
4927	case SVGA3D_RT_STENCIL:
4928	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4929	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4930	break;
4931
4932	case SVGA3D_RT_COLOR0:
4933	case SVGA3D_RT_COLOR1:
4934	case SVGA3D_RT_COLOR2:
4935	case SVGA3D_RT_COLOR3:
4936	case SVGA3D_RT_COLOR4:
4937	case SVGA3D_RT_COLOR5:
4938	case SVGA3D_RT_COLOR6:
4939	case SVGA3D_RT_COLOR7:
4940	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4941	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4942	break;
4943
4944	default:
4945	AssertFailedReturn(VERR_INVALID_PARAMETER);
4946	}
4947	return VINF_SUCCESS;
4948	}
4949
4950	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4951	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4952	pRenderTarget = pState->papSurfaces[target.sid];
4953
4954	switch (type)
4955	{
4956	case SVGA3D_RT_DEPTH:
4957	case SVGA3D_RT_STENCIL:
4958	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4959	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4960	{
4961	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4962	pContext = &pState->SharedCtx;
4963	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4964
4965	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4966	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4967
4968	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4969	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4970
4971	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4972	pRenderTarget->internalFormatGL,
4973	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4974	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4975	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4976
4977	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4978	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4979
4980	pContext = pState->papContexts[cid];
4981	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4982	pRenderTarget->idWeakContextAssociation = cid;
4983	}
4984
4985	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4986	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4987	Assert(!pRenderTarget->fDirty);
4988	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4989
4990	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4991
4992	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4993	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4994	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4996	break;
4997
4998	case SVGA3D_RT_COLOR0:
4999	case SVGA3D_RT_COLOR1:
5000	case SVGA3D_RT_COLOR2:
5001	case SVGA3D_RT_COLOR3:
5002	case SVGA3D_RT_COLOR4:
5003	case SVGA3D_RT_COLOR5:
5004	case SVGA3D_RT_COLOR6:
5005	case SVGA3D_RT_COLOR7:
5006	{
5007	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5008	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5009	{
5010	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));
5011	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
5012	AssertRCReturn(rc, rc);
5013	}
5014
5015	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5016	Assert(!pRenderTarget->fDirty);
5017
5018	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
5019
5020	GLenum textarget;
5021	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
5022	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
5023	else
5024	textarget = GL_TEXTURE_2D;
5025	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
5026	textarget, pRenderTarget->oglId.texture, target.mipmap);
5027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5028
5029	#ifdef DEBUG
5030	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
5031	if (status != GL_FRAMEBUFFER_COMPLETE)
5032	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
5033	#endif
5034	/** @todo use glDrawBuffers too? */
5035	break;
5036	}
5037
5038	default:
5039	AssertFailedReturn(VERR_INVALID_PARAMETER);
5040	}
5041
5042	return VINF_SUCCESS;
5043	}
5044
5045	#if 0
5046	/**
5047	* Convert SVGA texture combiner value to its D3D equivalent
5048	*/
5049	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
5050	{
5051	switch (value)
5052	{
5053	case SVGA3D_TC_DISABLE:
5054	return D3DTOP_DISABLE;
5055	case SVGA3D_TC_SELECTARG1:
5056	return D3DTOP_SELECTARG1;
5057	case SVGA3D_TC_SELECTARG2:
5058	return D3DTOP_SELECTARG2;
5059	case SVGA3D_TC_MODULATE:
5060	return D3DTOP_MODULATE;
5061	case SVGA3D_TC_ADD:
5062	return D3DTOP_ADD;
5063	case SVGA3D_TC_ADDSIGNED:
5064	return D3DTOP_ADDSIGNED;
5065	case SVGA3D_TC_SUBTRACT:
5066	return D3DTOP_SUBTRACT;
5067	case SVGA3D_TC_BLENDTEXTUREALPHA:
5068	return D3DTOP_BLENDTEXTUREALPHA;
5069	case SVGA3D_TC_BLENDDIFFUSEALPHA:
5070	return D3DTOP_BLENDDIFFUSEALPHA;
5071	case SVGA3D_TC_BLENDCURRENTALPHA:
5072	return D3DTOP_BLENDCURRENTALPHA;
5073	case SVGA3D_TC_BLENDFACTORALPHA:
5074	return D3DTOP_BLENDFACTORALPHA;
5075	case SVGA3D_TC_MODULATE2X:
5076	return D3DTOP_MODULATE2X;
5077	case SVGA3D_TC_MODULATE4X:
5078	return D3DTOP_MODULATE4X;
5079	case SVGA3D_TC_DSDT:
5080	AssertFailed(); /** @todo ??? */
5081	return D3DTOP_DISABLE;
5082	case SVGA3D_TC_DOTPRODUCT3:
5083	return D3DTOP_DOTPRODUCT3;
5084	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
5085	return D3DTOP_BLENDTEXTUREALPHAPM;
5086	case SVGA3D_TC_ADDSIGNED2X:
5087	return D3DTOP_ADDSIGNED2X;
5088	case SVGA3D_TC_ADDSMOOTH:
5089	return D3DTOP_ADDSMOOTH;
5090	case SVGA3D_TC_PREMODULATE:
5091	return D3DTOP_PREMODULATE;
5092	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
5093	return D3DTOP_MODULATEALPHA_ADDCOLOR;
5094	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
5095	return D3DTOP_MODULATECOLOR_ADDALPHA;
5096	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
5097	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
5098	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
5099	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
5100	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
5101	return D3DTOP_BUMPENVMAPLUMINANCE;
5102	case SVGA3D_TC_MULTIPLYADD:
5103	return D3DTOP_MULTIPLYADD;
5104	case SVGA3D_TC_LERP:
5105	return D3DTOP_LERP;
5106	default:
5107	AssertFailed();
5108	return D3DTOP_DISABLE;
5109	}
5110	}
5111
5112	/**
5113	* Convert SVGA texture arg data value to its D3D equivalent
5114	*/
5115	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
5116	{
5117	switch (value)
5118	{
5119	case SVGA3D_TA_CONSTANT:
5120	return D3DTA_CONSTANT;
5121	case SVGA3D_TA_PREVIOUS:
5122	return D3DTA_CURRENT; /* current = previous */
5123	case SVGA3D_TA_DIFFUSE:
5124	return D3DTA_DIFFUSE;
5125	case SVGA3D_TA_TEXTURE:
5126	return D3DTA_TEXTURE;
5127	case SVGA3D_TA_SPECULAR:
5128	return D3DTA_SPECULAR;
5129	default:
5130	AssertFailed();
5131	return 0;
5132	}
5133	}
5134
5135	/**
5136	* Convert SVGA texture transform flag value to its D3D equivalent
5137	*/
5138	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5139	{
5140	switch (value)
5141	{
5142	case SVGA3D_TEX_TRANSFORM_OFF:
5143	return D3DTTFF_DISABLE;
5144	case SVGA3D_TEX_TRANSFORM_S:
5145	return D3DTTFF_COUNT1; /** @todo correct? */
5146	case SVGA3D_TEX_TRANSFORM_T:
5147	return D3DTTFF_COUNT2; /** @todo correct? */
5148	case SVGA3D_TEX_TRANSFORM_R:
5149	return D3DTTFF_COUNT3; /** @todo correct? */
5150	case SVGA3D_TEX_TRANSFORM_Q:
5151	return D3DTTFF_COUNT4; /** @todo correct? */
5152	case SVGA3D_TEX_PROJECTED:
5153	return D3DTTFF_PROJECTED;
5154	default:
5155	AssertFailed();
5156	return 0;
5157	}
5158	}
5159	#endif
5160
5161	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5162	{
5163	switch (value)
5164	{
5165	case SVGA3D_TEX_ADDRESS_WRAP:
5166	return GL_REPEAT;
5167	case SVGA3D_TEX_ADDRESS_MIRROR:
5168	return GL_MIRRORED_REPEAT;
5169	case SVGA3D_TEX_ADDRESS_CLAMP:
5170	return GL_CLAMP_TO_EDGE;
5171	case SVGA3D_TEX_ADDRESS_BORDER:
5172	return GL_CLAMP_TO_BORDER;
5173	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5174	AssertFailed();
5175	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5176
5177	case SVGA3D_TEX_ADDRESS_EDGE:
5178	case SVGA3D_TEX_ADDRESS_INVALID:
5179	default:
5180	AssertFailed();
5181	return GL_REPEAT; /* default */
5182	}
5183	}
5184
5185	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5186	{
5187	switch (value)
5188	{
5189	case SVGA3D_TEX_FILTER_NONE:
5190	case SVGA3D_TEX_FILTER_LINEAR:
5191	return GL_LINEAR;
5192	case SVGA3D_TEX_FILTER_NEAREST:
5193	return GL_NEAREST;
5194	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5195	/** @todo */
5196	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5197	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5198	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5199	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5200	default:
5201	AssertFailed();
5202	return GL_LINEAR; /* default */
5203	}
5204	}
5205
5206	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5207	{
5208	/* flip the red and blue bytes */
5209	uint8_t blue = value & 0xff;
5210	uint8_t red = (value >> 16) & 0xff;
5211	return (value & 0xff00ff00) \| red \| (blue << 16);
5212	}
5213
5214	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5215	{
5216	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5217	GLenum currentStage = ~(GLenum)0;
5218	PVMSVGA3DCONTEXT pContext;
5219	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5220	AssertReturn(pState, VERR_NO_MEMORY);
5221
5222	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5223
5224	if ( cid >= pState->cContexts
5225	\|\| pState->papContexts[cid]->id != cid)
5226	{
5227	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5228	return VERR_INVALID_PARAMETER;
5229	}
5230	pContext = pState->papContexts[cid];
5231	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5232
5233	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
5234	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
5235
5236	for (uint32_t i = 0; i < cTextureStates; ++i)
5237	{
5238	GLenum textureType = ~(GLenum)0;
5239	#if 0
5240	GLenum samplerType = ~(GLenum)0;
5241	#endif
5242
5243	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
5244	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5245
5246	/* Record the texture state for vm state saving. */
5247	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5248	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5249	{
5250	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5251	}
5252
5253	/* Activate the right texture unit for subsequent texture state changes. */
5254	if (pTextureState[i].stage != currentStage \|\| i == 0)
5255	{
5256	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5257	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5258	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5259	{
5260	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5262	currentStage = pTextureState[i].stage;
5263	}
5264	else
5265	{
5266	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5267	continue;
5268	}
5269
5270	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
5271	{
5272	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
5273	AssertRCReturn(rc, rc);
5274	}
5275	else
5276	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
5277	}
5278
5279	switch (pTextureState[i].name)
5280	{
5281	case SVGA3D_TS_BUMPENVMAT00: /* float */
5282	case SVGA3D_TS_BUMPENVMAT01: /* float */
5283	case SVGA3D_TS_BUMPENVMAT10: /* float */
5284	case SVGA3D_TS_BUMPENVMAT11: /* float */
5285	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5286	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5287	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5288	break;
5289
5290	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5291	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5292	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5293	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5294	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5295	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5296	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5297	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5298	/** @todo not used by MesaGL */
5299	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5300	break;
5301	#if 0
5302
5303	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5304	textureType = D3DTSS_TEXCOORDINDEX;
5305	val = pTextureState[i].value;
5306	break;
5307
5308	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5309	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5310	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5311	break;
5312	#endif
5313
5314	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5315	{
5316	uint32_t const sid = pTextureState[i].value;
5317
5318	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
5319	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
5320
5321	/* Only is texture actually changed. */ /// @todo needs testing.
5322	if (pContext->aSidActiveTextures[currentStage] != sid)
5323	{
5324	if (pCurrentTextureSurface)
5325	{
5326	/* Unselect the currently associated texture. */
5327	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5328	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5329
5330	/* Necessary for the fixed pipeline. */
5331	glDisable(pCurrentTextureSurface->targetGL);
5332	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5333
5334	pCurrentTextureSurface = NULL;
5335	}
5336
5337	if (sid == SVGA3D_INVALID_ID)
5338	{
5339	Assert(pCurrentTextureSurface == NULL);
5340	}
5341	else
5342	{
5343	PVMSVGA3DSURFACE pSurface;
5344	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5345	AssertRCReturn(rc, rc);
5346
5347	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
5348	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
5349	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5350
5351	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5352	{
5353	Log(("CreateTexture (%d,%d) levels=%d\n",
5354	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5355	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5356	AssertRCReturn(rc, rc);
5357	}
5358
5359	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5360	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5361
5362	/* Necessary for the fixed pipeline. */
5363	glEnable(pSurface->targetGL);
5364	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5365
5366	/* Remember the currently active texture. */
5367	pCurrentTextureSurface = pSurface;
5368
5369	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5370	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5371	{
5372	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5373	{
5374	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5375
5376	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5377	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5378	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5379	}
5380	}
5381	}
5382
5383	pContext->aSidActiveTextures[currentStage] = sid;
5384	}
5385
5386	/* Finished; continue with the next one. */
5387	continue;
5388	}
5389
5390	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5391	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5392	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5393	break;
5394
5395	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5396	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5397	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5398	break;
5399
5400	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5401	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5402	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5403	break;
5404
5405	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5406	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5407	{
5408	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5409	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5410
5411	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5412	textureType = GL_TEXTURE_MIN_FILTER;
5413	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5414	{
5415	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5416	{
5417	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5418	val = GL_NEAREST_MIPMAP_LINEAR;
5419	else
5420	val = GL_NEAREST_MIPMAP_NEAREST;
5421	}
5422	else
5423	{
5424	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5425	val = GL_LINEAR_MIPMAP_LINEAR;
5426	else
5427	val = GL_LINEAR_MIPMAP_NEAREST;
5428	}
5429	}
5430	else
5431	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5432	break;
5433	}
5434
5435	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5436	textureType = GL_TEXTURE_MAG_FILTER;
5437	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5438	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5439	break;
5440
5441	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5442	{
5443	GLfloat color[4]; /* red, green, blue, alpha */
5444	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5445
5446	GLenum targetGL;
5447	if (pCurrentTextureSurface)
5448	targetGL = pCurrentTextureSurface->targetGL;
5449	else
5450	{
5451	/* No texture bound, assume 2D. */
5452	targetGL = GL_TEXTURE_2D;
5453	}
5454
5455	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5456	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5457	break;
5458	}
5459
5460	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5461	{
5462	GLenum targetGL;
5463	if (pCurrentTextureSurface)
5464	targetGL = pCurrentTextureSurface->targetGL;
5465	else
5466	{
5467	/* No texture bound, assume 2D. */
5468	targetGL = GL_TEXTURE_2D;
5469	}
5470
5471	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5472	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5473	break;
5474	}
5475
5476	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5477	textureType = GL_TEXTURE_BASE_LEVEL;
5478	val = pTextureState[i].value;
5479	break;
5480
5481	#if 0
5482	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5483	samplerType = D3DSAMP_MAXANISOTROPY;
5484	val = pTextureState[i].value; /* Identical?? */
5485	break;
5486
5487	case SVGA3D_TS_GAMMA: /* float */
5488	samplerType = D3DSAMP_SRGBTEXTURE;
5489	/* Boolean in D3D */
5490	if (pTextureState[i].floatValue == 1.0f)
5491	val = FALSE;
5492	else
5493	val = TRUE;
5494	break;
5495	#endif
5496	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5497	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5498	AssertFailed();
5499	break;
5500
5501	default:
5502	//AssertFailed();
5503	break;
5504	}
5505
5506	if (textureType != ~(GLenum)0)
5507	{
5508	GLenum targetGL;
5509	if (pCurrentTextureSurface)
5510	targetGL = pCurrentTextureSurface->targetGL;
5511	else
5512	{
5513	/* No texture bound, assume 2D. */
5514	targetGL = GL_TEXTURE_2D;
5515	}
5516
5517	glTexParameteri(targetGL, textureType, val);
5518	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5519	}
5520	}
5521
5522	return VINF_SUCCESS;
5523	}
5524
5525	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5526	{
5527	PVMSVGA3DCONTEXT pContext;
5528	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5529	AssertReturn(pState, VERR_NO_MEMORY);
5530	GLenum oglFace;
5531
5532	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5533
5534	if ( cid >= pState->cContexts
5535	\|\| pState->papContexts[cid]->id != cid)
5536	{
5537	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5538	return VERR_INVALID_PARAMETER;
5539	}
5540	pContext = pState->papContexts[cid];
5541	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5542
5543	switch (face)
5544	{
5545	case SVGA3D_FACE_NONE:
5546	case SVGA3D_FACE_FRONT:
5547	oglFace = GL_FRONT;
5548	break;
5549
5550	case SVGA3D_FACE_BACK:
5551	oglFace = GL_BACK;
5552	break;
5553
5554	case SVGA3D_FACE_FRONT_BACK:
5555	oglFace = GL_FRONT_AND_BACK;
5556	break;
5557
5558	default:
5559	AssertFailedReturn(VERR_INVALID_PARAMETER);
5560	}
5561
5562	/* Save for vm state save/restore. */
5563	pContext->state.aMaterial[face].fValid = true;
5564	pContext->state.aMaterial[face].material = *pMaterial;
5565	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5566
5567	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5568	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5569	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5570	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5571	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5572	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5573
5574	return VINF_SUCCESS;
5575	}
5576
5577	/** @todo Move into separate library as we are using logic from Wine here. */
5578	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5579	{
5580	PVMSVGA3DCONTEXT pContext;
5581	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5582	AssertReturn(pState, VERR_NO_MEMORY);
5583	float QuadAttenuation;
5584
5585	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5586
5587	if ( cid >= pState->cContexts
5588	\|\| pState->papContexts[cid]->id != cid)
5589	{
5590	Log(("vmsvga3dSetLightData invalid context id!\n"));
5591	return VERR_INVALID_PARAMETER;
5592	}
5593	pContext = pState->papContexts[cid];
5594	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5595
5596	/* Store for vm state save/restore */
5597	if (index < SVGA3D_MAX_LIGHTS)
5598	{
5599	pContext->state.aLightData[index].fValidData = true;
5600	pContext->state.aLightData[index].data = *pData;
5601	}
5602	else
5603	AssertFailed();
5604
5605	if ( pData->attenuation0 < 0.0f
5606	\|\| pData->attenuation1 < 0.0f
5607	\|\| pData->attenuation2 < 0.0f)
5608	{
5609	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5610	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5611	}
5612
5613	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5614	glMatrixMode(GL_MODELVIEW);
5615	glPushMatrix();
5616	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5617
5618	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5619	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5620	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5621
5622	if (pData->range * pData->range >= FLT_MIN)
5623	QuadAttenuation = 1.4f / (pData->range * pData->range);
5624	else
5625	QuadAttenuation = 0.0f;
5626
5627	switch (pData->type)
5628	{
5629	case SVGA3D_LIGHTTYPE_POINT:
5630	{
5631	GLfloat position[4];
5632
5633	position[0] = pData->position[0];
5634	position[1] = pData->position[1];
5635	position[2] = pData->position[2];
5636	position[3] = 1.0f;
5637
5638	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5639	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5640
5641	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5642	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5643
5644	/* Attenuation - Are these right? guessing... */
5645	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5646	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5647
5648	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5649	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5650
5651	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5652	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5653
5654	/** @todo range */
5655	break;
5656	}
5657
5658	case SVGA3D_LIGHTTYPE_SPOT1:
5659	{
5660	GLfloat exponent;
5661	GLfloat position[4];
5662	const GLfloat pi = 4.0f * atanf(1.0f);
5663
5664	position[0] = pData->position[0];
5665	position[1] = pData->position[1];
5666	position[2] = pData->position[2];
5667	position[3] = 1.0f;
5668
5669	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5670	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5671
5672	position[0] = pData->direction[0];
5673	position[1] = pData->direction[1];
5674	position[2] = pData->direction[2];
5675	position[3] = 1.0f;
5676
5677	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5678	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5679
5680	/*
5681	* opengl-ish and d3d-ish spot lights use too different models for the
5682	* light "intensity" as a function of the angle towards the main light direction,
5683	* so we only can approximate very roughly.
5684	* however spot lights are rather rarely used in games (if ever used at all).
5685	* furthermore if still used, probably nobody pays attention to such details.
5686	*/
5687	if (pData->falloff == 0)
5688	{
5689	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5690	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5691	* will always be 1.0 for both of them, and we don't have to care for the
5692	* rest of the rather complex calculation
5693	*/
5694	exponent = 0.0f;
5695	}
5696	else
5697	{
5698	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5699	if (rho < 0.0001f)
5700	rho = 0.0001f;
5701	exponent = -0.3f/log(cos(rho/2));
5702	}
5703	if (exponent > 128.0f)
5704	exponent = 128.0f;
5705
5706	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5707	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5708
5709	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5710	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5711
5712	/* Attenuation - Are these right? guessing... */
5713	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5714	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5715
5716	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5717	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5718
5719	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5720	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5721
5722	/** @todo range */
5723	break;
5724	}
5725
5726	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5727	{
5728	GLfloat position[4];
5729
5730	position[0] = -pData->direction[0];
5731	position[1] = -pData->direction[1];
5732	position[2] = -pData->direction[2];
5733	position[3] = 0.0f;
5734
5735	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5736	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5737
5738	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5739	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5740
5741	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5742	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5743	break;
5744	}
5745
5746	case SVGA3D_LIGHTTYPE_SPOT2:
5747	default:
5748	Log(("Unsupported light type!!\n"));
5749	return VERR_INVALID_PARAMETER;
5750	}
5751
5752	/* Restore the modelview matrix */
5753	glPopMatrix();
5754
5755	return VINF_SUCCESS;
5756	}
5757
5758	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5759	{
5760	PVMSVGA3DCONTEXT pContext;
5761	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5762	AssertReturn(pState, VERR_NO_MEMORY);
5763
5764	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5765
5766	if ( cid >= pState->cContexts
5767	\|\| pState->papContexts[cid]->id != cid)
5768	{
5769	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5770	return VERR_INVALID_PARAMETER;
5771	}
5772	pContext = pState->papContexts[cid];
5773	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5774
5775	/* Store for vm state save/restore */
5776	if (index < SVGA3D_MAX_LIGHTS)
5777	pContext->state.aLightData[index].fEnabled = !!enabled;
5778	else
5779	AssertFailed();
5780
5781	if (enabled)
5782	{
5783	/* Load the default settings if none have been set yet. */
5784	if (!pContext->state.aLightData[index].fValidData)
5785	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5786	glEnable(GL_LIGHT0 + index);
5787	}
5788	else
5789	glDisable(GL_LIGHT0 + index);
5790
5791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5792	return VINF_SUCCESS;
5793	}
5794
5795	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5796	{
5797	PVMSVGA3DCONTEXT pContext;
5798	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5799	AssertReturn(pState, VERR_NO_MEMORY);
5800
5801	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5802
5803	if ( cid >= pState->cContexts
5804	\|\| pState->papContexts[cid]->id != cid)
5805	{
5806	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5807	return VERR_INVALID_PARAMETER;
5808	}
5809	pContext = pState->papContexts[cid];
5810	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5811
5812	/* Save for vm state save/restore. */
5813	pContext->state.RectViewPort = *pRect;
5814	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5815
5816	/** @todo y-inversion for partial viewport coordinates? */
5817	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5818	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5819
5820	/* Reset the projection matrix as that relies on the viewport setting. */
5821	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5822	{
5823	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5824	}
5825	else
5826	{
5827	float matrix[16];
5828
5829	/* identity matrix if no matrix set. */
5830	memset(matrix, 0, sizeof(matrix));
5831	matrix[0] = 1.0;
5832	matrix[5] = 1.0;
5833	matrix[10] = 1.0;
5834	matrix[15] = 1.0;
5835	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5836	}
5837
5838	return VINF_SUCCESS;
5839	}
5840
5841	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5842	{
5843	PVMSVGA3DCONTEXT pContext;
5844	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5845	AssertReturn(pState, VERR_NO_MEMORY);
5846	double oglPlane[4];
5847
5848	Log(("vmsvga3dSetClipPlane cid=%x %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5849	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5850
5851	if ( cid >= pState->cContexts
5852	\|\| pState->papContexts[cid]->id != cid)
5853	{
5854	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5855	return VERR_INVALID_PARAMETER;
5856	}
5857	pContext = pState->papContexts[cid];
5858	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5859
5860	/* Store for vm state save/restore. */
5861	pContext->state.aClipPlane[index].fValid = true;
5862	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5863
5864	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5865	oglPlane[0] = (double)plane[0];
5866	oglPlane[1] = (double)plane[1];
5867	oglPlane[2] = (double)plane[2];
5868	oglPlane[3] = (double)plane[3];
5869
5870	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5871	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5872
5873	return VINF_SUCCESS;
5874	}
5875
5876	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5877	{
5878	PVMSVGA3DCONTEXT pContext;
5879	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5880	AssertReturn(pState, VERR_NO_MEMORY);
5881
5882	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5883
5884	if ( cid >= pState->cContexts
5885	\|\| pState->papContexts[cid]->id != cid)
5886	{
5887	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5888	return VERR_INVALID_PARAMETER;
5889	}
5890	pContext = pState->papContexts[cid];
5891	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5892
5893	/* Store for vm state save/restore. */
5894	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5895	pContext->state.RectScissor = *pRect;
5896
5897	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5898	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5899
5900	return VINF_SUCCESS;
5901	}
5902
5903	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5904	{
5905	/* Convert byte color components to float (0-1.0) */
5906	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5907	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5908	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5909	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5910	}
5911
5912	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5913	uint32_t cRects, SVGA3dRect *pRect)
5914	{
5915	GLbitfield mask = 0;
5916	PVMSVGA3DCONTEXT pContext;
5917	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5918	AssertReturn(pState, VERR_NO_MEMORY);
5919	GLboolean fDepthWriteEnabled = GL_FALSE;
5920
5921	Log(("vmsvga3dCommandClear cid=%x clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5922
5923	if ( cid >= pState->cContexts
5924	\|\| pState->papContexts[cid]->id != cid)
5925	{
5926	Log(("vmsvga3dCommandClear invalid context id!\n"));
5927	return VERR_INVALID_PARAMETER;
5928	}
5929	pContext = pState->papContexts[cid];
5930	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5931
5932	if (clearFlag & SVGA3D_CLEAR_COLOR)
5933	{
5934	GLfloat red, green, blue, alpha;
5935
5936	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5937
5938	/* Set the color clear value. */
5939	glClearColor(red, green, blue, alpha);
5940
5941	mask \|= GL_COLOR_BUFFER_BIT;
5942	}
5943	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5944	{
5945	/** @todo possibly the same problem as with glDepthMask */
5946	glClearStencil(stencil);
5947	mask \|= GL_STENCIL_BUFFER_BIT;
5948	}
5949	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5950	{
5951	glClearDepth((GLdouble)depth);
5952	mask \|= GL_DEPTH_BUFFER_BIT;
5953
5954	/* glClear will not clear the depth buffer if writing is disabled. */
5955	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5956	if (fDepthWriteEnabled == GL_FALSE)
5957	glDepthMask(GL_TRUE);
5958	}
5959
5960	if (cRects)
5961	{
5962	/* Save the current scissor test bit and scissor box. */
5963	glPushAttrib(GL_SCISSOR_BIT);
5964	glEnable(GL_SCISSOR_TEST);
5965	for (unsigned i=0; i < cRects; i++)
5966	{
5967	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));
5968	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5969	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5970	glClear(mask);
5971	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5972	}
5973	/* Restore the old scissor test bit and box */
5974	glPopAttrib();
5975	}
5976	else
5977	{
5978	glClear(mask);
5979	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5980	}
5981
5982	/* Restore depth write state. */
5983	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5984	&& fDepthWriteEnabled == GL_FALSE)
5985	glDepthMask(GL_FALSE);
5986
5987	return VINF_SUCCESS;
5988	}
5989
5990	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5991	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5992	{
5993	normalized = GL_FALSE;
5994	switch (identity.type)
5995	{
5996	case SVGA3D_DECLTYPE_FLOAT1:
5997	size = 1;
5998	type = GL_FLOAT;
5999	break;
6000	case SVGA3D_DECLTYPE_FLOAT2:
6001	size = 2;
6002	type = GL_FLOAT;
6003	break;
6004	case SVGA3D_DECLTYPE_FLOAT3:
6005	size = 3;
6006	type = GL_FLOAT;
6007	break;
6008	case SVGA3D_DECLTYPE_FLOAT4:
6009	size = 4;
6010	type = GL_FLOAT;
6011	break;
6012
6013	case SVGA3D_DECLTYPE_D3DCOLOR:
6014	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
6015	type = GL_UNSIGNED_BYTE;
6016	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
6017	break;
6018
6019	case SVGA3D_DECLTYPE_UBYTE4N:
6020	normalized = GL_TRUE;
6021	RT_FALL_THRU();
6022	case SVGA3D_DECLTYPE_UBYTE4:
6023	size = 4;
6024	type = GL_UNSIGNED_BYTE;
6025	break;
6026
6027	case SVGA3D_DECLTYPE_SHORT2N:
6028	normalized = GL_TRUE;
6029	RT_FALL_THRU();
6030	case SVGA3D_DECLTYPE_SHORT2:
6031	size = 2;
6032	type = GL_SHORT;
6033	break;
6034
6035	case SVGA3D_DECLTYPE_SHORT4N:
6036	normalized = GL_TRUE;
6037	RT_FALL_THRU();
6038	case SVGA3D_DECLTYPE_SHORT4:
6039	size = 4;
6040	type = GL_SHORT;
6041	break;
6042
6043	case SVGA3D_DECLTYPE_USHORT4N:
6044	normalized = GL_TRUE;
6045	size = 4;
6046	type = GL_UNSIGNED_SHORT;
6047	break;
6048
6049	case SVGA3D_DECLTYPE_USHORT2N:
6050	normalized = GL_TRUE;
6051	size = 2;
6052	type = GL_UNSIGNED_SHORT;
6053	break;
6054
6055	case SVGA3D_DECLTYPE_UDEC3:
6056	size = 3;
6057	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
6058	break;
6059
6060	case SVGA3D_DECLTYPE_DEC3N:
6061	normalized = true;
6062	size = 3;
6063	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
6064	break;
6065
6066	case SVGA3D_DECLTYPE_FLOAT16_2:
6067	size = 2;
6068	type = GL_HALF_FLOAT;
6069	break;
6070	case SVGA3D_DECLTYPE_FLOAT16_4:
6071	size = 4;
6072	type = GL_HALF_FLOAT;
6073	break;
6074	default:
6075	AssertFailedReturn(VERR_INVALID_PARAMETER);
6076	}
6077
6078	//pVertexElement->Method = identity.method;
6079	//pVertexElement->Usage = identity.usage;
6080
6081	return VINF_SUCCESS;
6082	}
6083
6084	/* Convert VMWare primitive type to its OpenGL equivalent. */
6085	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6086	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6087	{
6088	switch (PrimitiveType)
6089	{
6090	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6091	*pMode = GL_TRIANGLES;
6092	pcVertices = cPrimitiveCount 3;
6093	break;
6094	case SVGA3D_PRIMITIVE_POINTLIST:
6095	*pMode = GL_POINTS;
6096	*pcVertices = cPrimitiveCount;
6097	break;
6098	case SVGA3D_PRIMITIVE_LINELIST:
6099	*pMode = GL_LINES;
6100	pcVertices = cPrimitiveCount 2;
6101	break;
6102	case SVGA3D_PRIMITIVE_LINESTRIP:
6103	*pMode = GL_LINE_STRIP;
6104	*pcVertices = cPrimitiveCount + 1;
6105	break;
6106	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
6107	*pMode = GL_TRIANGLE_STRIP;
6108	*pcVertices = cPrimitiveCount + 2;
6109	break;
6110	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
6111	*pMode = GL_TRIANGLE_FAN;
6112	*pcVertices = cPrimitiveCount + 2;
6113	break;
6114	default:
6115	return VERR_INVALID_PARAMETER;
6116	}
6117	return VINF_SUCCESS;
6118	}
6119
6120	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
6121	{
6122	int rc;
6123
6124	/* Reset the view matrix (also takes the world matrix into account). */
6125	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
6126	{
6127	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6128	}
6129	else
6130	{
6131	float matrix[16];
6132
6133	/* identity matrix if no matrix set. */
6134	memset(matrix, 0, sizeof(matrix));
6135	matrix[0] = 1.0;
6136	matrix[5] = 1.0;
6137	matrix[10] = 1.0;
6138	matrix[15] = 1.0;
6139	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
6140	}
6141
6142	/* Reset the projection matrix. */
6143	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6144	{
6145	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6146	}
6147	else
6148	{
6149	float matrix[16];
6150
6151	/* identity matrix if no matrix set. */
6152	memset(matrix, 0, sizeof(matrix));
6153	matrix[0] = 1.0;
6154	matrix[5] = 1.0;
6155	matrix[10] = 1.0;
6156	matrix[15] = 1.0;
6157	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
6158	}
6159	AssertRC(rc);
6160	return rc;
6161	}
6162
6163	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
6164	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
6165	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
6166	{
6167	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6168	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
6169	PVMSVGA3DSURFACE pVertexSurface;
6170
6171	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
6172	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
6173
6174	pVertexSurface = pState->papSurfaces[sidVertex];
6175	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
6176
6177	/* Create and/or bind the vertex buffer. */
6178	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6179	{
6180	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
6181	PVMSVGA3DCONTEXT pSavedCtx = pContext;
6182	pContext = &pState->SharedCtx;
6183	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6184
6185	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6187
6188	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6190
6191	Assert(pVertexSurface->fDirty);
6192	/** @todo rethink usage dynamic/static */
6193	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6194	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6195
6196	pVertexSurface->pMipmapLevels[0].fDirty = false;
6197	pVertexSurface->fDirty = false;
6198
6199	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6200
6201	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6203
6204	pContext = pSavedCtx;
6205	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6206	}
6207
6208	Assert(pVertexSurface->fDirty == false);
6209	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6210	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6211
6212	/* Setup the vertex declarations. */
6213	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6214	{
6215	GLint size;
6216	GLenum type;
6217	GLboolean normalized;
6218	GLuint index = iVertexDeclBase + iVertex;
6219
6220	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));
6221
6222	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6223	AssertRCReturn(rc, rc);
6224
6225	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6226	{
6227	/* Use numbered vertex arrays when shaders are active. */
6228	pState->ext.glEnableVertexAttribArray(index);
6229	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6230	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6231	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6232	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6233
6234	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
6235	pState->ext.glVertexAttribDivisor(index, divisor);
6236	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6237
6238	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6239	}
6240	else
6241	{
6242	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6243	switch (pVertexDecl[iVertex].identity.usage)
6244	{
6245	case SVGA3D_DECLUSAGE_POSITIONT:
6246	case SVGA3D_DECLUSAGE_POSITION:
6247	{
6248	glEnableClientState(GL_VERTEX_ARRAY);
6249	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6250	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6251	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6253	break;
6254	}
6255	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6256	AssertFailed();
6257	break;
6258	case SVGA3D_DECLUSAGE_BLENDINDICES:
6259	AssertFailed();
6260	break;
6261	case SVGA3D_DECLUSAGE_NORMAL:
6262	glEnableClientState(GL_NORMAL_ARRAY);
6263	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6264	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6265	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6267	break;
6268	case SVGA3D_DECLUSAGE_PSIZE:
6269	AssertFailed();
6270	break;
6271	case SVGA3D_DECLUSAGE_TEXCOORD:
6272	/* Specify the affected texture unit. */
6273	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6274	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6275	#else
6276	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6277	#endif
6278	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6279	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6280	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6281	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6282	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6283	break;
6284	case SVGA3D_DECLUSAGE_TANGENT:
6285	AssertFailed();
6286	break;
6287	case SVGA3D_DECLUSAGE_BINORMAL:
6288	AssertFailed();
6289	break;
6290	case SVGA3D_DECLUSAGE_TESSFACTOR:
6291	AssertFailed();
6292	break;
6293	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6294	glEnableClientState(GL_COLOR_ARRAY);
6295	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6296	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6297	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6298	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6299	break;
6300	case SVGA3D_DECLUSAGE_FOG:
6301	glEnableClientState(GL_FOG_COORD_ARRAY);
6302	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6303	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6304	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6305	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6306	break;
6307	case SVGA3D_DECLUSAGE_DEPTH:
6308	AssertFailed();
6309	break;
6310	case SVGA3D_DECLUSAGE_SAMPLE:
6311	AssertFailed();
6312	break;
6313	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6314	}
6315	}
6316
6317	#ifdef LOG_ENABLED
6318	if (pVertexDecl[iVertex].array.stride == 0)
6319	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6320	#endif
6321	}
6322
6323	return VINF_SUCCESS;
6324	}
6325
6326	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6327	{
6328	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6329
6330	/* Clean up the vertex declarations. */
6331	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6332	{
6333	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6334	{
6335	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6336	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6337	vmsvga3dResetTransformMatrices(pThis, pContext);
6338	}
6339
6340	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6341	{
6342	/* Use numbered vertex arrays when shaders are active. */
6343	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6344	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6345	}
6346	else
6347	{
6348	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6349	switch (pVertexDecl[iVertex].identity.usage)
6350	{
6351	case SVGA3D_DECLUSAGE_POSITION:
6352	case SVGA3D_DECLUSAGE_POSITIONT:
6353	glDisableClientState(GL_VERTEX_ARRAY);
6354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6355	break;
6356	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6357	break;
6358	case SVGA3D_DECLUSAGE_BLENDINDICES:
6359	break;
6360	case SVGA3D_DECLUSAGE_NORMAL:
6361	glDisableClientState(GL_NORMAL_ARRAY);
6362	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6363	break;
6364	case SVGA3D_DECLUSAGE_PSIZE:
6365	break;
6366	case SVGA3D_DECLUSAGE_TEXCOORD:
6367	/* Specify the affected texture unit. */
6368	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6369	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6370	#else
6371	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6372	#endif
6373	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6374	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6375	break;
6376	case SVGA3D_DECLUSAGE_TANGENT:
6377	break;
6378	case SVGA3D_DECLUSAGE_BINORMAL:
6379	break;
6380	case SVGA3D_DECLUSAGE_TESSFACTOR:
6381	break;
6382	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6383	glDisableClientState(GL_COLOR_ARRAY);
6384	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6385	break;
6386	case SVGA3D_DECLUSAGE_FOG:
6387	glDisableClientState(GL_FOG_COORD_ARRAY);
6388	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6389	break;
6390	case SVGA3D_DECLUSAGE_DEPTH:
6391	break;
6392	case SVGA3D_DECLUSAGE_SAMPLE:
6393	break;
6394	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6395	}
6396	}
6397	}
6398	/* Unbind the vertex buffer after usage. */
6399	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6400	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6401	return VINF_SUCCESS;
6402	}
6403
6404	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6405	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6406	SVGA3dVertexDivisor *pVertexDivisor)
6407	{
6408	RT_NOREF(pVertexDivisor);
6409	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6410	AssertReturn(pState, VERR_INTERNAL_ERROR);
6411	PVMSVGA3DCONTEXT pContext;
6412	int rc = VERR_NOT_IMPLEMENTED;
6413	uint32_t iCurrentVertex;
6414
6415	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6416
6417	/* Caller already check these, but it cannot hurt to check again... */
6418	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6419	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6420	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6421
6422	if (!cVertexDivisor)
6423	pVertexDivisor = NULL; /* Be sure. */
6424
6425	if ( cid >= pState->cContexts
6426	\|\| pState->papContexts[cid]->id != cid)
6427	{
6428	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6429	return VERR_INVALID_PARAMETER;
6430	}
6431	pContext = pState->papContexts[cid];
6432	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6433
6434	/* Check for pretransformed vertex declarations. */
6435	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6436	{
6437	switch (pVertexDecl[iVertex].identity.usage)
6438	{
6439	case SVGA3D_DECLUSAGE_POSITIONT:
6440	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6441	RT_FALL_THRU();
6442	case SVGA3D_DECLUSAGE_POSITION:
6443	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6444	pContext->state.RectViewPort.h,
6445	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6446	break;
6447	default: /* Shut up MSC. */ break;
6448	}
6449	}
6450
6451	/* Try to figure out if instancing is used.
6452	* Support simple instancing case with one set of indexed data and one set per-instance data.
6453	*/
6454	uint32_t cInstances = 0;
6455	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
6456	{
6457	if (pVertexDivisor[iVertexDivisor].s.indexedData)
6458	{
6459	if (cInstances == 0)
6460	cInstances = pVertexDivisor[iVertexDivisor].s.count;
6461	else
6462	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
6463	}
6464	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
6465	{
6466	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
6467	}
6468	}
6469
6470	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6471	if (pContext->pShaderContext)
6472	{
6473	uint32_t rtHeight = 0;
6474
6475	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6476	{
6477	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6478	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6479	}
6480
6481	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6482	}
6483
6484	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6485	iCurrentVertex = 0;
6486	while (iCurrentVertex < numVertexDecls)
6487	{
6488	uint32_t sidVertex = SVGA_ID_INVALID;
6489	uint32_t iVertex;
6490
6491	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6492	{
6493	if ( sidVertex != SVGA_ID_INVALID
6494	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6495	)
6496	break;
6497	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6498	}
6499
6500	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6501	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6502	AssertRCReturn(rc, rc);
6503
6504	iCurrentVertex = iVertex;
6505	}
6506
6507	/* Now draw the primitives. */
6508	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6509	{
6510	GLenum modeDraw;
6511	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6512	PVMSVGA3DSURFACE pIndexSurface = NULL;
6513	unsigned cVertices;
6514
6515	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6516	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6517	if (RT_FAILURE(rc))
6518	{
6519	AssertRC(rc);
6520	goto internal_error;
6521	}
6522
6523	if (sidIndex != SVGA3D_INVALID_ID)
6524	{
6525	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6526
6527	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6528	\|\| sidIndex >= pState->cSurfaces
6529	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6530	{
6531	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6532	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6533	rc = VERR_INVALID_PARAMETER;
6534	goto internal_error;
6535	}
6536	pIndexSurface = pState->papSurfaces[sidIndex];
6537	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6538
6539	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6540	{
6541	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6542	pContext = &pState->SharedCtx;
6543	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6544
6545	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6547
6548	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6549	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6550
6551	Assert(pIndexSurface->fDirty);
6552
6553	/** @todo rethink usage dynamic/static */
6554	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6556
6557	pIndexSurface->pMipmapLevels[0].fDirty = false;
6558	pIndexSurface->fDirty = false;
6559
6560	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6561
6562	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6563	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6564
6565	pContext = pState->papContexts[cid];
6566	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6567	}
6568	Assert(pIndexSurface->fDirty == false);
6569
6570	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6571	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6572	}
6573
6574	if (!pIndexSurface)
6575	{
6576	/* Render without an index buffer */
6577	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6578	if (cInstances == 0)
6579	{
6580	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6581	}
6582	else
6583	{
6584	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6585	}
6586	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6587	}
6588	else
6589	{
6590	GLenum indexType;
6591
6592	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6593	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6594
6595	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6596	{
6597	indexType = GL_UNSIGNED_BYTE;
6598	}
6599	else
6600	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6601	{
6602	indexType = GL_UNSIGNED_SHORT;
6603	}
6604	else
6605	{
6606	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6607	indexType = GL_UNSIGNED_INT;
6608	}
6609
6610	Log(("DrawIndexedPrimitive %x cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pVertexDecl[0].rangeHint.first, pVertexDecl[0].rangeHint.last, pRange[iPrimitive].indexArray.offset, pRange[iPrimitive].primitiveCount, pRange[iPrimitive].indexWidth, pRange[iPrimitive].indexBias));
6611	if (cInstances == 0)
6612	{
6613	/* Render with an index buffer */
6614	if (pRange[iPrimitive].indexBias == 0)
6615	glDrawElements(modeDraw,
6616	cVertices,
6617	indexType,
6618	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6619	else
6620	pState->ext.glDrawElementsBaseVertex(modeDraw,
6621	cVertices,
6622	indexType,
6623	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6624	pRange[iPrimitive].indexBias); /* basevertex */
6625	}
6626	else
6627	{
6628	/* Render with an index buffer */
6629	if (pRange[iPrimitive].indexBias == 0)
6630	pState->ext.glDrawElementsInstanced(modeDraw,
6631	cVertices,
6632	indexType,
6633	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6634	cInstances);
6635	else
6636	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6637	cVertices,
6638	indexType,
6639	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6640	cInstances,
6641	pRange[iPrimitive].indexBias); /* basevertex */
6642	}
6643	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6644
6645	/* Unbind the index buffer after usage. */
6646	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6647	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6648	}
6649	}
6650
6651	internal_error:
6652
6653	/* Deactivate the vertex declarations. */
6654	iCurrentVertex = 0;
6655	while (iCurrentVertex < numVertexDecls)
6656	{
6657	uint32_t sidVertex = SVGA_ID_INVALID;
6658	uint32_t iVertex;
6659
6660	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6661	{
6662	if ( sidVertex != SVGA_ID_INVALID
6663	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6664	)
6665	break;
6666	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6667	}
6668
6669	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6670	AssertRCReturn(rc, rc);
6671
6672	iCurrentVertex = iVertex;
6673	}
6674	#ifdef DEBUG
6675	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6676	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6677	{
6678	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6679	{
6680	PVMSVGA3DSURFACE pTexture;
6681	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6682	AssertContinue(RT_SUCCESS(rc2));
6683
6684	GLint activeTextureUnit = 0;
6685	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6686	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6687
6688	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6689	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6690
6691	GLint activeTexture = 0;
6692	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6693	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6694
6695	pState->ext.glActiveTexture(activeTextureUnit);
6696	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6697
6698	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6699	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6700	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6701	}
6702	}
6703	#endif
6704
6705	#ifdef DEBUG_GFX_WINDOW
6706	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0])
6707	{
6708	SVGA3dCopyRect rect;
6709
6710	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6711	rect.w = pContext->state.RectViewPort.w;
6712	rect.h = pContext->state.RectViewPort.h;
6713	vmsvga3dCommandPresent(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], 0, NULL);
6714	}
6715	#endif
6716
6717	#if 0
6718	/* Dump render target to a bitmap. */
6719	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6720	{
6721	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6722	PVMSVGA3DSURFACE pSurface;
6723	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6724	if (RT_SUCCESS(rc2))
6725	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6726	}
6727	#endif
6728
6729	return rc;
6730	}
6731
6732
6733	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6734	{
6735	PVMSVGA3DCONTEXT pContext;
6736	PVMSVGA3DSHADER pShader;
6737	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6738	AssertReturn(pState, VERR_NO_MEMORY);
6739	int rc;
6740
6741	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6742	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6743
6744	if ( cid >= pState->cContexts
6745	\|\| pState->papContexts[cid]->id != cid)
6746	{
6747	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6748	return VERR_INVALID_PARAMETER;
6749	}
6750	pContext = pState->papContexts[cid];
6751	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6752
6753	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6754	if (type == SVGA3D_SHADERTYPE_VS)
6755	{
6756	if (shid >= pContext->cVertexShaders)
6757	{
6758	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6759	AssertReturn(pvNew, VERR_NO_MEMORY);
6760	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6761	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6762	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6763	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6764	pContext->cVertexShaders = shid + 1;
6765	}
6766	/* If one already exists with this id, then destroy it now. */
6767	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6768	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6769
6770	pShader = &pContext->paVertexShader[shid];
6771	}
6772	else
6773	{
6774	Assert(type == SVGA3D_SHADERTYPE_PS);
6775	if (shid >= pContext->cPixelShaders)
6776	{
6777	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6778	AssertReturn(pvNew, VERR_NO_MEMORY);
6779	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6780	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6781	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6782	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6783	pContext->cPixelShaders = shid + 1;
6784	}
6785	/* If one already exists with this id, then destroy it now. */
6786	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6787	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6788
6789	pShader = &pContext->paPixelShader[shid];
6790	}
6791
6792	memset(pShader, 0, sizeof(*pShader));
6793	pShader->id = shid;
6794	pShader->cid = cid;
6795	pShader->type = type;
6796	pShader->cbData = cbData;
6797	pShader->pShaderProgram = RTMemAllocZ(cbData);
6798	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6799	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6800
6801	#ifdef DUMP_SHADER_DISASSEMBLY
6802	LPD3DXBUFFER pDisassembly;
6803	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6804	if (hr == D3D_OK)
6805	{
6806	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6807	pDisassembly->Release();
6808	}
6809	#endif
6810
6811	switch (type)
6812	{
6813	case SVGA3D_SHADERTYPE_VS:
6814	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6815	break;
6816
6817	case SVGA3D_SHADERTYPE_PS:
6818	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6819	break;
6820
6821	default:
6822	AssertFailedReturn(VERR_INVALID_PARAMETER);
6823	}
6824	if (rc != VINF_SUCCESS)
6825	{
6826	RTMemFree(pShader->pShaderProgram);
6827	memset(pShader, 0, sizeof(*pShader));
6828	pShader->id = SVGA3D_INVALID_ID;
6829	}
6830
6831	return rc;
6832	}
6833
6834	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6835	{
6836	PVMSVGA3DCONTEXT pContext;
6837	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6838	AssertReturn(pState, VERR_NO_MEMORY);
6839	PVMSVGA3DSHADER pShader = NULL;
6840	int rc;
6841
6842	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6843
6844	if ( cid >= pState->cContexts
6845	\|\| pState->papContexts[cid]->id != cid)
6846	{
6847	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6848	return VERR_INVALID_PARAMETER;
6849	}
6850	pContext = pState->papContexts[cid];
6851	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6852
6853	if (type == SVGA3D_SHADERTYPE_VS)
6854	{
6855	if ( shid < pContext->cVertexShaders
6856	&& pContext->paVertexShader[shid].id == shid)
6857	{
6858	pShader = &pContext->paVertexShader[shid];
6859	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6860	AssertRC(rc);
6861	}
6862	}
6863	else
6864	{
6865	Assert(type == SVGA3D_SHADERTYPE_PS);
6866	if ( shid < pContext->cPixelShaders
6867	&& pContext->paPixelShader[shid].id == shid)
6868	{
6869	pShader = &pContext->paPixelShader[shid];
6870	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6871	AssertRC(rc);
6872	}
6873	}
6874
6875	if (pShader)
6876	{
6877	if (pShader->pShaderProgram)
6878	RTMemFree(pShader->pShaderProgram);
6879	memset(pShader, 0, sizeof(*pShader));
6880	pShader->id = SVGA3D_INVALID_ID;
6881	}
6882	else
6883	AssertFailedReturn(VERR_INVALID_PARAMETER);
6884
6885	return VINF_SUCCESS;
6886	}
6887
6888	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6889	{
6890	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6891	AssertReturn(pState, VERR_NO_MEMORY);
6892	int rc;
6893
6894	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6895
6896	if ( !pContext
6897	&& cid < pState->cContexts
6898	&& pState->papContexts[cid]->id == cid)
6899	pContext = pState->papContexts[cid];
6900	else if (!pContext)
6901	{
6902	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6903	Log(("vmsvga3dShaderSet invalid context id!\n"));
6904	return VERR_INVALID_PARAMETER;
6905	}
6906	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6907
6908	if (type == SVGA3D_SHADERTYPE_VS)
6909	{
6910	/* Save for vm state save/restore. */
6911	pContext->state.shidVertex = shid;
6912	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6913
6914	if ( shid < pContext->cVertexShaders
6915	&& pContext->paVertexShader[shid].id == shid)
6916	{
6917	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6918	Assert(type == pShader->type);
6919
6920	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6921	AssertRCReturn(rc, rc);
6922	}
6923	else
6924	if (shid == SVGA_ID_INVALID)
6925	{
6926	/* Unselect shader. */
6927	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6928	AssertRCReturn(rc, rc);
6929	}
6930	else
6931	AssertFailedReturn(VERR_INVALID_PARAMETER);
6932	}
6933	else
6934	{
6935	/* Save for vm state save/restore. */
6936	pContext->state.shidPixel = shid;
6937	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6938
6939	Assert(type == SVGA3D_SHADERTYPE_PS);
6940	if ( shid < pContext->cPixelShaders
6941	&& pContext->paPixelShader[shid].id == shid)
6942	{
6943	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6944	Assert(type == pShader->type);
6945
6946	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6947	AssertRCReturn(rc, rc);
6948	}
6949	else
6950	if (shid == SVGA_ID_INVALID)
6951	{
6952	/* Unselect shader. */
6953	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6954	AssertRCReturn(rc, rc);
6955	}
6956	else
6957	AssertFailedReturn(VERR_INVALID_PARAMETER);
6958	}
6959
6960	return VINF_SUCCESS;
6961	}
6962
6963	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6964	{
6965	PVMSVGA3DCONTEXT pContext;
6966	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6967	AssertReturn(pState, VERR_NO_MEMORY);
6968	int rc;
6969
6970	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6971
6972	if ( cid >= pState->cContexts
6973	\|\| pState->papContexts[cid]->id != cid)
6974	{
6975	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6976	return VERR_INVALID_PARAMETER;
6977	}
6978	pContext = pState->papContexts[cid];
6979	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6980
6981	for (uint32_t i = 0; i < cRegisters; i++)
6982	{
6983	#ifdef LOG_ENABLED
6984	switch (ctype)
6985	{
6986	case SVGA3D_CONST_TYPE_FLOAT:
6987	{
6988	float pValuesF = (float )pValues;
6989	Log(("Constant %d: value=%d-%d-%d-%d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0), (int)(pValuesF[i4 + 1] 100.0), (int)(pValuesF[i4 + 2] 100.0), (int)(pValuesF[i4 + 3] 100.0)));
6990	break;
6991	}
6992
6993	case SVGA3D_CONST_TYPE_INT:
6994	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6995	break;
6996
6997	case SVGA3D_CONST_TYPE_BOOL:
6998	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6999	break;
7000	}
7001	#endif
7002	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
7003	}
7004
7005	switch (type)
7006	{
7007	case SVGA3D_SHADERTYPE_VS:
7008	switch (ctype)
7009	{
7010	case SVGA3D_CONST_TYPE_FLOAT:
7011	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7012	break;
7013
7014	case SVGA3D_CONST_TYPE_INT:
7015	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7016	break;
7017
7018	case SVGA3D_CONST_TYPE_BOOL:
7019	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7020	break;
7021
7022	default:
7023	AssertFailedReturn(VERR_INVALID_PARAMETER);
7024	}
7025	AssertRCReturn(rc, rc);
7026	break;
7027
7028	case SVGA3D_SHADERTYPE_PS:
7029	switch (ctype)
7030	{
7031	case SVGA3D_CONST_TYPE_FLOAT:
7032	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7033	break;
7034
7035	case SVGA3D_CONST_TYPE_INT:
7036	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7037	break;
7038
7039	case SVGA3D_CONST_TYPE_BOOL:
7040	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7041	break;
7042
7043	default:
7044	AssertFailedReturn(VERR_INVALID_PARAMETER);
7045	}
7046	AssertRCReturn(rc, rc);
7047	break;
7048
7049	default:
7050	AssertFailedReturn(VERR_INVALID_PARAMETER);
7051	}
7052
7053	return VINF_SUCCESS;
7054	}
7055
7056	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7057	{
7058	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
7059	GLuint idQuery = 0;
7060	pState->ext.glGenQueries(1, &idQuery);
7061	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7062	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
7063	pContext->occlusion.idQuery = idQuery;
7064	return VINF_SUCCESS;
7065	}
7066
7067	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7068	{
7069	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
7070	if (pContext->occlusion.idQuery)
7071	{
7072	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
7073	}
7074	return VINF_SUCCESS;
7075	}
7076
7077	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7078	{
7079	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
7080	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
7081	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7082	return VINF_SUCCESS;
7083	}
7084
7085	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7086	{
7087	RT_NOREF(pContext);
7088	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
7089	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
7090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7091	return VINF_SUCCESS;
7092	}
7093
7094	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
7095	{
7096	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
7097	GLuint pixels = 0;
7098	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
7099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7100
7101	*pu32Pixels = (uint32_t)pixels;
7102	return VINF_SUCCESS;
7103	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 73519

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