DevVGA-SVGA3d-ogl.cpp@ 73284

Last change on this file since 73284 was 73284, checked in by vboxsync, 7 years ago
DevVGA-SVGA3d-ogl: removed never used MANUAL_FLIP_SURFACE_DATA code.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 262.1 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 73284 2018-07-20 21:52:10Z 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 wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	/* Enable to render the result of DrawPrimitive in a seperate window. */
91	//#define DEBUG_GFX_WINDOW
92
93
94	/**
95	* Macro for doing something and then checking for errors during initialization.
96	* Uses AssertLogRelMsg.
97	*/
98	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
99	do \
100	{ \
101	a_Expr; \
102	GLenum iGlError = glGetError(); \
103	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
104	} while (0)
105
106	/**
107	* Macro for doing something and then checking for errors during initialization,
108	* doing the same in the other context when enabled.
109	*
110	* This will try both profiles in dual profile builds. Caller must be in the
111	* default context.
112	*
113	* Uses AssertLogRelMsg to indicate trouble.
114	*/
115	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
116	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
117	do \
118	{ \
119	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
120	a_Expr; \
121	GLenum iGlError = glGetError(); \
122	if (iGlError != GL_NO_ERROR) \
123	{ \
124	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
125	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
126	a_Expr; \
127	GLenum iGlError2 = glGetError(); \
128	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
129	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
130	} \
131	} while (0)
132	#else
133	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
134	#endif
135
136
137	/*********************************************************************************************************************************
138	* Global Variables *
139	*********************************************************************************************************************************/
140	/* Define the default light parameters as specified by MSDN. */
141	/** @todo move out; fetched from Wine */
142	const SVGA3dLightData vmsvga3d_default_light =
143	{
144	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
145	false, /* inWorldSpace */
146	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
147	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
149	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
150	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
151	0.0f, /* range */
152	0.0f, /* falloff */
153	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
154	0.0f, /* theta */
155	0.0f /* phi */
156	};
157
158
159	/*********************************************************************************************************************************
160	* Internal Functions *
161	*********************************************************************************************************************************/
162	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
163	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
164
165	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
166	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
167
168
169	/**
170	* Checks if the given OpenGL extension is supported.
171	*
172	* @returns true if supported, false if not.
173	* @param pState The VMSVGA3d state.
174	* @param rsMinGLVersion The OpenGL version that introduced this feature
175	* into the core.
176	* @param pszWantedExtension The name of the OpenGL extension we want padded
177	* with one space at each end.
178	* @remarks Init time only.
179	*/
180	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
181	{
182	RT_NOREF(rsMinGLVersion);
183	/* check padding. */
184	Assert(pszWantedExtension[0] == ' ');
185	Assert(pszWantedExtension[1] != ' ');
186	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
187
188	/* Look it up. */
189	bool fRet = false;
190	if (strstr(pState->pszExtensions, pszWantedExtension))
191	fRet = true;
192
193	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
194	#ifdef RT_OS_DARWIN
195	AssertMsg( rsMinGLVersion == 0.0
196	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
197	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
198	("%s actual:%d min:%d fRet=%d\n",
199	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
200	#else
201	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
202	("%s actual:%d min:%d fRet=%d\n",
203	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
204	#endif
205	return fRet;
206	}
207
208
209	/**
210	* Outputs GL_EXTENSIONS list to the release log.
211	*/
212	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
213	{
214	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
215	bool fBuffered = RTLogRelSetBuffering(true);
216
217	/*
218	* Determin the column widths first.
219	*/
220	size_t acchWidths[4] = { 1, 1, 1, 1 };
221	uint32_t i;
222	const char *psz = pszExtensions;
223	for (i = 0; ; i++)
224	{
225	while (*psz == ' ')
226	psz++;
227	if (!*psz)
228	break;
229
230	const char *pszEnd = strchr(psz, ' ');
231	AssertBreak(pszEnd);
232	size_t cch = pszEnd - psz;
233
234	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
235	if (acchWidths[iColumn] < cch)
236	acchWidths[iColumn] = cch;
237
238	psz = pszEnd;
239	}
240
241	/*
242	* Output it.
243	*/
244	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
245	psz = pszExtensions;
246	for (i = 0; ; i++)
247	{
248	while (*psz == ' ')
249	psz++;
250	if (!*psz)
251	break;
252
253	const char *pszEnd = strchr(psz, ' ');
254	AssertBreak(pszEnd);
255	size_t cch = pszEnd - psz;
256
257	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
258	if (iColumn == 0)
259	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
260	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
261	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
262	else
263	LogRel((" %.*s", cch, psz));
264
265	psz = pszEnd;
266	}
267
268	RTLogRelSetBuffering(fBuffered);
269	LogRel(("\n"));
270	}
271
272	/**
273	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
274	* @a ppszExtensions.
275	*
276	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
277	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
278	* @param fGLProfileVersion The OpenGL profile version.
279	*/
280	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
281	{
282	int rc;
283	*ppszExtensions = NULL;
284
285	/*
286	* Try the old glGetString interface first.
287	*/
288	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
289	if (pszExtensions)
290	{
291	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
292	AssertLogRelRCReturn(rc, rc);
293	}
294	else
295	{
296	/*
297	* The new interface where each extension string is retrieved separately.
298	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
299	* the above GL_EXTENSIONS error lingers on darwin. sucks.
300	*/
301	#ifndef GL_NUM_EXTENSIONS
302	# define GL_NUM_EXTENSIONS 0x821D
303	#endif
304	GLint cExtensions = 1024;
305	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
306	Assert(cExtensions != 1024);
307
308	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
309	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
310
311	rc = RTStrAAppend(ppszExtensions, " ");
312	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
313	{
314	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
315	if (pszExt)
316	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
317	}
318	AssertRCReturn(rc, rc);
319	}
320
321	#if 1
322	/*
323	* Add extensions promoted into the core OpenGL profile.
324	*/
325	static const struct
326	{
327	float fGLVersion;
328	const char *pszzExtensions;
329	} s_aPromotedExtensions[] =
330	{
331	{
332	1.1f,
333	" GL_EXT_vertex_array \0"
334	" GL_EXT_polygon_offset \0"
335	" GL_EXT_blend_logic_op \0"
336	" GL_EXT_texture \0"
337	" GL_EXT_copy_texture \0"
338	" GL_EXT_subtexture \0"
339	" GL_EXT_texture_object \0"
340	" GL_ARB_framebuffer_object \0"
341	" GL_ARB_map_buffer_range \0"
342	" GL_ARB_vertex_array_object \0"
343	"\0"
344	},
345	{
346	1.2f,
347	" EXT_texture3D \0"
348	" EXT_bgra \0"
349	" EXT_packed_pixels \0"
350	" EXT_rescale_normal \0"
351	" EXT_separate_specular_color \0"
352	" SGIS_texture_edge_clamp \0"
353	" SGIS_texture_lod \0"
354	" EXT_draw_range_elements \0"
355	"\0"
356	},
357	{
358	1.3f,
359	" GL_ARB_texture_compression \0"
360	" GL_ARB_texture_cube_map \0"
361	" GL_ARB_multisample \0"
362	" GL_ARB_multitexture \0"
363	" GL_ARB_texture_env_add \0"
364	" GL_ARB_texture_env_combine \0"
365	" GL_ARB_texture_env_dot3 \0"
366	" GL_ARB_texture_border_clamp \0"
367	" GL_ARB_transpose_matrix \0"
368	"\0"
369	},
370	{
371	1.5f,
372	" GL_SGIS_generate_mipmap \0"
373	/" GL_NV_blend_equare \0"/
374	" GL_ARB_depth_texture \0"
375	" GL_ARB_shadow \0"
376	" GL_EXT_fog_coord \0"
377	" GL_EXT_multi_draw_arrays \0"
378	" GL_ARB_point_parameters \0"
379	" GL_EXT_secondary_color \0"
380	" GL_EXT_blend_func_separate \0"
381	" GL_EXT_stencil_wrap \0"
382	" GL_ARB_texture_env_crossbar \0"
383	" GL_EXT_texture_lod_bias \0"
384	" GL_ARB_texture_mirrored_repeat \0"
385	" GL_ARB_window_pos \0"
386	"\0"
387	},
388	{
389	1.6f,
390	" GL_ARB_vertex_buffer_object \0"
391	" GL_ARB_occlusion_query \0"
392	" GL_EXT_shadow_funcs \0"
393	},
394	{
395	2.0f,
396	" GL_ARB_shader_objects \0" /??/
397	" GL_ARB_vertex_shader \0" /??/
398	" GL_ARB_fragment_shader \0" /??/
399	" GL_ARB_shading_language_100 \0" /??/
400	" GL_ARB_draw_buffers \0"
401	" GL_ARB_texture_non_power_of_two \0"
402	" GL_ARB_point_sprite \0"
403	" GL_ATI_separate_stencil \0"
404	" GL_EXT_stencil_two_side \0"
405	"\0"
406	},
407	{
408	2.1f,
409	" GL_ARB_pixel_buffer_object \0"
410	" GL_EXT_texture_sRGB \0"
411	"\0"
412	},
413	{
414	3.0f,
415	" GL_ARB_framebuffer_object \0"
416	" GL_ARB_map_buffer_range \0"
417	" GL_ARB_vertex_array_object \0"
418	"\0"
419	},
420	{
421	3.1f,
422	" GL_ARB_copy_buffer \0"
423	" GL_ARB_uniform_buffer_object \0"
424	"\0"
425	},
426	{
427	3.2f,
428	" GL_ARB_vertex_array_bgra \0"
429	" GL_ARB_draw_elements_base_vertex \0"
430	" GL_ARB_fragment_coord_conventions \0"
431	" GL_ARB_provoking_vertex \0"
432	" GL_ARB_seamless_cube_map \0"
433	" GL_ARB_texture_multisample \0"
434	" GL_ARB_depth_clamp \0"
435	" GL_ARB_sync \0"
436	" GL_ARB_geometry_shader4 \0" /??/
437	"\0"
438	},
439	{
440	3.3f,
441	" GL_ARB_blend_func_extended \0"
442	" GL_ARB_sampler_objects \0"
443	" GL_ARB_explicit_attrib_location \0"
444	" GL_ARB_occlusion_query2 \0"
445	" GL_ARB_shader_bit_encoding \0"
446	" GL_ARB_texture_rgb10_a2ui \0"
447	" GL_ARB_texture_swizzle \0"
448	" GL_ARB_timer_query \0"
449	" GL_ARB_vertex_type_2_10_10_10_rev \0"
450	"\0"
451	},
452	{
453	4.0f,
454	" GL_ARB_texture_query_lod \0"
455	" GL_ARB_draw_indirect \0"
456	" GL_ARB_gpu_shader5 \0"
457	" GL_ARB_gpu_shader_fp64 \0"
458	" GL_ARB_shader_subroutine \0"
459	" GL_ARB_tessellation_shader \0"
460	" GL_ARB_texture_buffer_object_rgb32 \0"
461	" GL_ARB_texture_cube_map_array \0"
462	" GL_ARB_texture_gather \0"
463	" GL_ARB_transform_feedback2 \0"
464	" GL_ARB_transform_feedback3 \0"
465	"\0"
466	},
467	{
468	4.1f,
469	" GL_ARB_ES2_compatibility \0"
470	" GL_ARB_get_program_binary \0"
471	" GL_ARB_separate_shader_objects \0"
472	" GL_ARB_shader_precision \0"
473	" GL_ARB_vertex_attrib_64bit \0"
474	" GL_ARB_viewport_array \0"
475	"\0"
476	}
477	};
478
479	uint32_t cPromoted = 0;
480	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
481	{
482	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
483	while (*pszExt)
484	{
485	# ifdef VBOX_STRICT
486	size_t cchExt = strlen(pszExt);
487	Assert(cchExt > 3);
488	Assert(pszExt[0] == ' ');
489	Assert(pszExt[1] != ' ');
490	Assert(pszExt[cchExt - 2] != ' ');
491	Assert(pszExt[cchExt - 1] == ' ');
492	# endif
493
494	if (strstr(*ppszExtensions, pszExt) == NULL)
495	{
496	if (cPromoted++ == 0)
497	{
498	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
499	AssertRCReturn(rc, rc);
500	}
501
502	rc = RTStrAAppend(ppszExtensions, pszExt);
503	AssertRCReturn(rc, rc);
504	}
505
506	pszExt = strchr(pszExt, '\0') + 1;
507	}
508	}
509	#endif
510
511	return VINF_SUCCESS;
512	}
513
514	/**
515	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
516	*/
517	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
518	{
519	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
520	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
521	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
522	#else
523	NOREF(pThis);
524	NOREF(fOtherProfile);
525	#endif
526	}
527
528
529	/**
530	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
531	*/
532	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
533	char *pszBuf, size_t cbBuf, bool fOtherProfile)
534	{
535	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
536	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
537	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
538	while (*pszCur == ' ')
539	pszCur++;
540	if (!*pszCur)
541	return false;
542
543	const char *pszEnd = strchr(pszCur, ' ');
544	AssertReturn(pszEnd, false);
545	size_t cch = pszEnd - pszCur;
546	if (cch < cbBuf)
547	{
548	memcpy(pszBuf, pszCur, cch);
549	pszBuf[cch] = '\0';
550	}
551	else if (cbBuf > 0)
552	{
553	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
554	pszBuf[cbBuf - 1] = '\0';
555	}
556
557	ppvEnumCtx = (void )pszEnd;
558	return true;
559	}
560
561
562	/**
563	* Initializes the VMSVGA3D state during VGA device construction.
564	*
565	* Failure are generally not fatal, 3D support will just be disabled.
566	*
567	* @returns VBox status code.
568	* @param pThis The VGA device state where svga.p3dState will be modified.
569	*/
570	int vmsvga3dInit(PVGASTATE pThis)
571	{
572	AssertCompile(GL_TRUE == 1);
573	AssertCompile(GL_FALSE == 0);
574
575	/*
576	* Load and resolve imports from the external shared libraries.
577	*/
578	RTERRINFOSTATIC ErrInfo;
579	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
580	if (RT_FAILURE(rc))
581	{
582	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
583	return rc;
584	}
585	#ifdef RT_OS_DARWIN
586	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
587	if (RT_FAILURE(rc))
588	{
589	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
590	return rc;
591	}
592	#endif
593
594	/*
595	* Allocate the state.
596	*/
597	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
598	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
599
600	#ifdef RT_OS_WINDOWS
601	/* Create event semaphore and async IO thread. */
602	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
603	rc = RTSemEventCreate(&pState->WndRequestSem);
604	if (RT_SUCCESS(rc))
605	{
606	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
607	"VMSVGA3DWND");
608	if (RT_SUCCESS(rc))
609	return VINF_SUCCESS;
610
611	/* bail out. */
612	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
613	RTSemEventDestroy(pState->WndRequestSem);
614	}
615	else
616	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
617	RTMemFree(pThis->svga.p3dState);
618	pThis->svga.p3dState = NULL;
619	return rc;
620	#else
621	return VINF_SUCCESS;
622	#endif
623	}
624
625	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
626	int vmsvga3dPowerOn(PVGASTATE pThis)
627	{
628	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
629	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
630	PVMSVGA3DCONTEXT pContext;
631	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
632	PVMSVGA3DCONTEXT pOtherCtx;
633	#endif
634	int rc;
635
636	if (pState->rsGLVersion != 0.0)
637	return VINF_SUCCESS; /* already initialized (load state) */
638
639	/*
640	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
641	*/
642	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
643	AssertRCReturn(rc, rc);
644
645	pContext = pState->papContexts[1];
646	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
647
648	LogRel(("VMSVGA3d: OpenGL version: %s\n"
649	"VMSVGA3d: OpenGL Vendor: %s\n"
650	"VMSVGA3d: OpenGL Renderer: %s\n"
651	"VMSVGA3d: OpenGL shader language version: %s\n",
652	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
653	glGetString(GL_SHADING_LANGUAGE_VERSION)));
654
655	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
656	AssertRCReturn(rc, rc);
657	vmsvga3dLogRelExtensions("", pState->pszExtensions);
658
659	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
660
661
662	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
663	/*
664	* Get the extension list for the alternative profile so we can better
665	* figure out the shader model and stuff.
666	*/
667	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
668	AssertLogRelRCReturn(rc, rc);
669	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
670
671	pOtherCtx = pState->papContexts[2];
672	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
673
674	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
675	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
676	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
677	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
678	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
679	glGetString(GL_SHADING_LANGUAGE_VERSION)));
680
681	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
682	AssertRCReturn(rc, rc);
683	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
684
685	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
686
687	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
688	#else
689	pState->pszOtherExtensions = (char *)"";
690	pState->rsOtherGLVersion = pState->rsGLVersion;
691	#endif
692
693
694	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
695	{
696	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
697	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
698	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
699	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
700	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
701	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
702	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
703	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
704	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
705	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
706	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
707	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
708	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
709	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
710	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
711	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
712	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
713	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
714	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
715	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
716	}
717	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
718	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
719	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
720	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
721	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
722	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
723	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
724	#endif
725	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
726	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
727	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
728	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
729	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
730	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
731	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
732	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
733	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
734	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
735	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
736	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
737	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
738	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
739	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
740	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
741	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
742	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
743	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
744	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
745	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
746	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
747	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
748	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
749	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
750	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
751	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
752	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
753	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
754	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
755	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
756	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
757	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
758	#endif
759	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
760	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
761
762	/* OpenGL 3.2 core */
763	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
764	{
765	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
766	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
767	}
768	else
769	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
770
771	/* OpenGL 3.2 core */
772	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
773	{
774	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
775	}
776	else
777	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
778
779	/* Extension support */
780	#if defined(RT_OS_DARWIN)
781	/** @todo OpenGL version history suggest this, verify... */
782	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
783	#else
784	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
785	#endif
786
787	#define GLGETPROC(ProcType, ProcName) do { \
788	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
789	AssertMsgReturn(pState->ext.ProcName, (#ProcName " missing"), VERR_NOT_IMPLEMENTED); \
790	} while(0)
791	#define GLGETPROCOPT(ProcType, ProcName) do { \
792	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
793	AssertMsg(pState->ext.ProcName, (#ProcName " missing (optional)")); \
794	} while(0)
795
796	GLGETPROCOPT(PFNGLGENQUERIESPROC , glGenQueries);
797	GLGETPROCOPT(PFNGLDELETEQUERIESPROC , glDeleteQueries);
798	GLGETPROCOPT(PFNGLBEGINQUERYPROC , glBeginQuery);
799	GLGETPROCOPT(PFNGLENDQUERYPROC , glEndQuery);
800	GLGETPROCOPT(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv);
801
802	#undef GLGETPROCOPT
803	#undef GLGETPROC
804	/*
805	* Initialize the capabilities with sensible defaults.
806	*/
807	pState->caps.maxActiveLights = 1;
808	pState->caps.maxTextureBufferSize = 65536;
809	pState->caps.maxTextures = 1;
810	pState->caps.maxClipDistances = 4;
811	pState->caps.maxColorAttachments = 1;
812	pState->caps.maxRectangleTextureSize = 2048;
813	pState->caps.maxTextureAnisotropy = 2;
814	pState->caps.maxVertexShaderInstructions = 1024;
815	pState->caps.maxFragmentShaderInstructions = 1024;
816	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
817	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
818	pState->caps.flPointSize[0] = 1;
819	pState->caps.flPointSize[1] = 1;
820
821	/*
822	* Query capabilities
823	*/
824	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
827	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
828	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
829	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
830	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
831	#else
832	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
833	#endif
834	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
835	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
836	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
837	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
838
839	if (pState->ext.glGetProgramivARB)
840	{
841	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
842	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
843	&pState->caps.maxFragmentShaderTemps));
844	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
845	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
846	&pState->caps.maxFragmentShaderInstructions));
847	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
848	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
849	&pState->caps.maxVertexShaderTemps));
850	#ifdef DEBUG_sunlover
851	/// @todo Fix properly!!! Some Windows host drivers return 31 for the compatible OGL context (wglCreateContext).
852	if (pState->caps.maxVertexShaderTemps < 32)
853	pState->caps.maxVertexShaderTemps = 32;
854	#endif
855	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
856	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
857	&pState->caps.maxVertexShaderInstructions));
858	}
859	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
860
861	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
862	* ARB Assembly Language
863	* These are done through testing the presence of extensions. You should test them in this order:
864	* GL_NV_gpu_program4: SM 4.0 or better.
865	* GL_NV_vertex_program3: SM 3.0 or better.
866	* GL_ARB_fragment_program: SM 2.0 or better.
867	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
868	*
869	*/
870	/** @todo distinguish between vertex and pixel shaders??? */
871	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
872	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
873	if (v >= 3.30f)
874	{
875	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
876	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
877	}
878	else
879	if (v >= 1.20f)
880	{
881	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
882	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
883	}
884	else
885	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
886	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
887	{
888	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
889	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
890	}
891	else
892	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
893	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
894	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
895	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
896	)
897	{
898	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
899	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
900	}
901	else
902	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
903	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
904	{
905	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
906	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
907	}
908	else
909	{
910	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
911	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
912	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
913	}
914
915	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
916	{
917	/** @todo Intel drivers don't support this extension! */
918	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
919	}
920	#if 0
921	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
922	SVGA3D_DEVCAP_QUERY_TYPES = 15,
923	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
924	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
925	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
926	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
927	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
928	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
929	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
930	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
931	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
932	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
933	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
934	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
935	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
936	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
937	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
938	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
939	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
940	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
941	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
942	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
943	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
944	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
945	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
946	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
947	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
948	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
949	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
950	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
951	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
952	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
953	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
954	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
955	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
956	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
957	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
958	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
959	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
960	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
961	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
962	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
963	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
964	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
965	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
966	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
967	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
968	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
969	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
970	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
971	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
972	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
973	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
974	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
975	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
976	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
977	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
978	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
979	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
980	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
981	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
982	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
983	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
984	#endif
985
986	LogRel(("VMSVGA3d: Capabilities:\n"));
987	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
988	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
989	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
990	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
991	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
992	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
993	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
994	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
995	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
996	pState->caps.maxFragmentShaderTemps,
997	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
998	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
999	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1000	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1001
1002
1003	/* Initialize the shader library. */
1004	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1005	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1006	rc = ShaderInitLib(&pState->ShaderIf);
1007	AssertRC(rc);
1008
1009	/* Cleanup */
1010	rc = vmsvga3dContextDestroy(pThis, 1);
1011	AssertRC(rc);
1012	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1013	rc = vmsvga3dContextDestroy(pThis, 2);
1014	AssertRC(rc);
1015	#endif
1016
1017	if ( pState->rsGLVersion < 3.0
1018	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1019	{
1020	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1021	return VERR_NOT_IMPLEMENTED;
1022	}
1023	if ( !pState->ext.glIsRenderbuffer
1024	\|\| !pState->ext.glBindRenderbuffer
1025	\|\| !pState->ext.glDeleteRenderbuffers
1026	\|\| !pState->ext.glGenRenderbuffers
1027	\|\| !pState->ext.glRenderbufferStorage
1028	\|\| !pState->ext.glGetRenderbufferParameteriv
1029	\|\| !pState->ext.glIsFramebuffer
1030	\|\| !pState->ext.glBindFramebuffer
1031	\|\| !pState->ext.glDeleteFramebuffers
1032	\|\| !pState->ext.glGenFramebuffers
1033	\|\| !pState->ext.glCheckFramebufferStatus
1034	\|\| !pState->ext.glFramebufferTexture1D
1035	\|\| !pState->ext.glFramebufferTexture2D
1036	\|\| !pState->ext.glFramebufferTexture3D
1037	\|\| !pState->ext.glFramebufferRenderbuffer
1038	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1039	\|\| !pState->ext.glGenerateMipmap
1040	\|\| !pState->ext.glBlitFramebuffer
1041	\|\| !pState->ext.glRenderbufferStorageMultisample
1042	\|\| !pState->ext.glFramebufferTextureLayer)
1043	{
1044	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1045	return VERR_NOT_IMPLEMENTED;
1046	}
1047
1048	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1049	pState->idTestContext = SVGA_ID_INVALID;
1050	#endif
1051	return VINF_SUCCESS;
1052	}
1053
1054	int vmsvga3dReset(PVGASTATE pThis)
1055	{
1056	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1057	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1058
1059	/* Destroy all leftover surfaces. */
1060	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1061	{
1062	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1063	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1064	}
1065
1066	/* Destroy all leftover contexts. */
1067	for (uint32_t i = 0; i < pState->cContexts; i++)
1068	{
1069	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1070	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1071	}
1072
1073	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1074	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1075
1076	return VINF_SUCCESS;
1077	}
1078
1079	int vmsvga3dTerminate(PVGASTATE pThis)
1080	{
1081	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1082	AssertReturn(pState, VERR_WRONG_ORDER);
1083	int rc;
1084
1085	rc = vmsvga3dReset(pThis);
1086	AssertRCReturn(rc, rc);
1087
1088	/* Terminate the shader library. */
1089	rc = ShaderDestroyLib();
1090	AssertRC(rc);
1091
1092	#ifdef RT_OS_WINDOWS
1093	/* Terminate the window creation thread. */
1094	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1095	AssertRCReturn(rc, rc);
1096
1097	RTSemEventDestroy(pState->WndRequestSem);
1098	#elif defined(RT_OS_DARWIN)
1099
1100	#elif defined(RT_OS_LINUX)
1101	/* signal to the thread that it is supposed to exit */
1102	pState->bTerminate = true;
1103	/* wait for it to terminate */
1104	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1105	AssertRC(rc);
1106	XCloseDisplay(pState->display);
1107	#endif
1108
1109	RTStrFree(pState->pszExtensions);
1110	pState->pszExtensions = NULL;
1111	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1112	RTStrFree(pState->pszOtherExtensions);
1113	#endif
1114	pState->pszOtherExtensions = NULL;
1115
1116	return VINF_SUCCESS;
1117	}
1118
1119
1120	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1121	{
1122	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1123	* redraw it. */
1124
1125	#ifdef RT_OS_DARWIN
1126	RT_NOREF(pOldViewport);
1127	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1128	if ( pState
1129	&& idScreen == 0
1130	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1131	{
1132	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1133	}
1134	#else
1135	RT_NOREF(pThis, idScreen, pOldViewport);
1136	#endif
1137	}
1138
1139
1140	/**
1141	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1142	* given surface format capability.
1143	*
1144	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1145	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1146	*
1147	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1148	* of implicit guest expectations:
1149	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1150	*/
1151	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1152	{
1153	uint32_t result = 0;
1154
1155	/** @todo missing:
1156	*
1157	* SVGA3DFORMAT_OP_PIXELSIZE
1158	*/
1159
1160	switch (idx3dCaps)
1161	{
1162	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1163	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1164	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1165	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1166	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1167	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1168	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1169	break;
1170
1171	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1172	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1173	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1174	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1175	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1176	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1177	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1178	break;
1179	}
1180
1181	/** @todo check hardware caps! */
1182	switch (idx3dCaps)
1183	{
1184	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1185	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1186	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1187	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1188	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1189	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1190	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1191	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1192	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1193	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1194	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1195	result \|= SVGA3DFORMAT_OP_TEXTURE
1196	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1197	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1198	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1199	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1200	\| SVGA3DFORMAT_OP_CUBETEXTURE
1201	\| SVGA3DFORMAT_OP_SRGBREAD
1202	\| SVGA3DFORMAT_OP_SRGBWRITE;
1203	break;
1204
1205	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1206	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1207	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1208	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1209	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1210	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1211	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1212	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1213	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1214	break;
1215
1216	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1217	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1218	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1219	result \|= SVGA3DFORMAT_OP_TEXTURE
1220	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1221	\| SVGA3DFORMAT_OP_CUBETEXTURE
1222	\| SVGA3DFORMAT_OP_SRGBREAD;
1223	break;
1224
1225	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1226	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1227	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1228	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1229	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1230	break;
1231
1232	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1233	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1234	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1235	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1236	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1237	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1238	break;
1239
1240	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1241	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1242	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1243
1244	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1245	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1246	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1247	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1248	break;
1249	}
1250	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1251
1252	return result;
1253	}
1254
1255	#if 0 /* unused */
1256	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1257	{
1258	RT_NOREF(pState3D, idx3dCaps);
1259
1260	/** @todo test this somehow */
1261	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1262
1263	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1264	return result;
1265	}
1266	#endif
1267
1268
1269	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1270	{
1271	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1272	AssertReturn(pState, VERR_NO_MEMORY);
1273	int rc = VINF_SUCCESS;
1274
1275	*pu32Val = 0;
1276
1277	/*
1278	* The capabilities access by current (2015-03-01) linux sources (gallium,
1279	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1280	* aren't access.
1281	*/
1282
1283	switch (idx3dCaps)
1284	{
1285	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1286	case SVGA3D_DEVCAP_3D:
1287	pu32Val = 1; / boolean? */
1288	break;
1289
1290	case SVGA3D_DEVCAP_MAX_LIGHTS:
1291	*pu32Val = pState->caps.maxActiveLights;
1292	break;
1293
1294	case SVGA3D_DEVCAP_MAX_TEXTURES:
1295	*pu32Val = pState->caps.maxTextures;
1296	break;
1297
1298	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1299	*pu32Val = pState->caps.maxClipDistances;
1300	break;
1301
1302	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1303	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1304	*pu32Val = pState->caps.vertexShaderVersion;
1305	break;
1306
1307	case SVGA3D_DEVCAP_VERTEX_SHADER:
1308	/* boolean? */
1309	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1310	break;
1311
1312	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1313	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1314	*pu32Val = pState->caps.fragmentShaderVersion;
1315	break;
1316
1317	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1318	/* boolean? */
1319	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1320	break;
1321
1322	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1323	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1324	/* Must be obsolete by now; surface format caps specify the same thing. */
1325	rc = VERR_INVALID_PARAMETER;
1326	break;
1327
1328	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1329	break;
1330
1331	/*
1332	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1333	* return TRUE. Even on physical hardware that does not support
1334	* these formats natively, the SVGA3D device will provide an emulation
1335	* which should be invisible to the guest OS.
1336	*/
1337	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1338	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1339	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1340	*pu32Val = 1;
1341	break;
1342
1343	case SVGA3D_DEVCAP_QUERY_TYPES:
1344	break;
1345
1346	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1347	break;
1348
1349	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1350	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1351	AssertCompile(sizeof(uint32_t) == sizeof(float));
1352	(float )pu32Val = pState->caps.flPointSize[1];
1353	break;
1354
1355	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1356	/** @todo ?? */
1357	rc = VERR_INVALID_PARAMETER;
1358	break;
1359
1360	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1361	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1362	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1363	*pu32Val = pState->caps.maxRectangleTextureSize;
1364	break;
1365
1366	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1367	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1368	//*pu32Val = pCaps->MaxVolumeExtent;
1369	*pu32Val = 256;
1370	break;
1371
1372	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1373	pu32Val = 32768; / hardcoded in Wine */
1374	break;
1375
1376	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1377	//*pu32Val = pCaps->MaxTextureAspectRatio;
1378	break;
1379
1380	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1381	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1382	*pu32Val = pState->caps.maxTextureAnisotropy;
1383	break;
1384
1385	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1386	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1387	pu32Val = 0xFFFFF; / hardcoded in Wine */
1388	break;
1389
1390	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1391	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1392	*pu32Val = pState->caps.maxVertexShaderInstructions;
1393	break;
1394
1395	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1396	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1397	break;
1398
1399	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1400	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1401	*pu32Val = pState->caps.maxVertexShaderTemps;
1402	break;
1403
1404	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1405	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1406	*pu32Val = pState->caps.maxFragmentShaderTemps;
1407	break;
1408
1409	case SVGA3D_DEVCAP_TEXTURE_OPS:
1410	break;
1411
1412	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1413	break;
1414
1415	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1416	break;
1417
1418	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1419	break;
1420
1421	case SVGA3D_DEVCAP_SUPERSAMPLE:
1422	break;
1423
1424	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1425	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1426	break;
1427
1428	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1429	break;
1430
1431	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1432	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1433	*pu32Val = pState->caps.maxColorAttachments;
1434	break;
1435
1436	/*
1437	* This is the maximum number of SVGA context IDs that the guest
1438	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1439	*/
1440	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1441	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1442	break;
1443
1444	/*
1445	* This is the maximum number of SVGA surface IDs that the guest
1446	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1447	*/
1448	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1449	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1450	break;
1451
1452	#if 0 /* Appeared more recently, not yet implemented. */
1453	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1454	case SVGA3D_DEVCAP_LINE_AA:
1455	break;
1456	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1457	case SVGA3D_DEVCAP_LINE_STIPPLE:
1458	break;
1459	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1460	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1461	break;
1462	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1463	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1464	break;
1465	#endif
1466
1467	/*
1468	* Supported surface formats.
1469	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1470	*/
1471	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1472	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1473	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1474	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1475	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1476	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1477	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1478	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1479	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1480	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1481	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1482	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1483	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1484	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1485	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1486	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1487	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1488	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1489	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1490	break;
1491
1492	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1493	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1494	pu32Val = 0; / apparently not supported in OpenGL */
1495	break;
1496
1497	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1498	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1499	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1500	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1501	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1502	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1503	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1504	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1505	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1506	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1507	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1508	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1509	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1510	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1511	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1512	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1513	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1514	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1515	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1516	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1517	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1518	break;
1519
1520	/* Linux: Not referenced in current sources. */
1521	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1522	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1523	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1524	rc = VERR_INVALID_PARAMETER;
1525	*pu32Val = 0;
1526	break;
1527
1528	default:
1529	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1530	rc = VERR_INVALID_PARAMETER;
1531	break;
1532	}
1533
1534	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1535	return rc;
1536	}
1537
1538	/**
1539	* Convert SVGA format value to its OpenGL equivalent
1540	*
1541	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1542	* help from wined3dformat_from_d3dformat().
1543	*/
1544	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1545	{
1546	switch (format)
1547	{
1548	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1549	pSurface->internalFormatGL = GL_RGB8;
1550	pSurface->formatGL = GL_BGRA;
1551	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1552	break;
1553	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1554	pSurface->internalFormatGL = GL_RGBA8;
1555	pSurface->formatGL = GL_BGRA;
1556	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1557	break;
1558	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1559	pSurface->internalFormatGL = GL_RGB5;
1560	pSurface->formatGL = GL_RGB;
1561	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1562	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1563	break;
1564	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1565	pSurface->internalFormatGL = GL_RGB5;
1566	pSurface->formatGL = GL_BGRA;
1567	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1568	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1569	break;
1570	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1571	pSurface->internalFormatGL = GL_RGB5_A1;
1572	pSurface->formatGL = GL_BGRA;
1573	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1574	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1575	break;
1576	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1577	pSurface->internalFormatGL = GL_RGBA4;
1578	pSurface->formatGL = GL_BGRA;
1579	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1580	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1581	break;
1582
1583	case SVGA3D_R8G8B8A8_UNORM:
1584	pSurface->internalFormatGL = GL_RGBA8;
1585	pSurface->formatGL = GL_RGBA;
1586	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1587	break;
1588
1589	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1590	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1591	pSurface->formatGL = GL_DEPTH_COMPONENT;
1592	pSurface->typeGL = GL_UNSIGNED_INT;
1593	break;
1594	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1595	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1596	pSurface->formatGL = GL_DEPTH_COMPONENT;
1597	pSurface->typeGL = GL_UNSIGNED_SHORT;
1598	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1599	break;
1600	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1601	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1602	pSurface->formatGL = GL_DEPTH_STENCIL;
1603	pSurface->typeGL = GL_UNSIGNED_INT;
1604	break;
1605	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1606	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1607	pSurface->formatGL = GL_DEPTH_STENCIL;
1608	pSurface->typeGL = GL_UNSIGNED_SHORT;
1609	/** @todo Wine sources hints at no hw support for this, so test this one! */
1610	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1611	break;
1612	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1613	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1614	pSurface->formatGL = GL_DEPTH_COMPONENT;
1615	pSurface->typeGL = GL_UNSIGNED_INT;
1616	break;
1617
1618	/* Advanced D3D9 depth formats. */
1619	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1620	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1621	pSurface->formatGL = GL_DEPTH_COMPONENT;
1622	pSurface->typeGL = GL_FLOAT;
1623	break;
1624
1625	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1626	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1627	pSurface->formatGL = GL_DEPTH_COMPONENT;
1628	pSurface->typeGL = GL_FLOAT; /* ??? */
1629	break;
1630
1631	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1632	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1633	pSurface->formatGL = GL_DEPTH_STENCIL;
1634	pSurface->typeGL = GL_INT; /* ??? */
1635	break;
1636
1637	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1638	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1639	#if 0
1640	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1641	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1642	#else /* wine suggests: */
1643	pSurface->formatGL = GL_RGBA;
1644	pSurface->typeGL = GL_UNSIGNED_BYTE;
1645	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1646	#endif
1647	break;
1648
1649	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1650	AssertMsgFailed(("Test me - SVGA3D_DXT2\n"));
1651	break;
1652
1653	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1654	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1655	#if 0 /** @todo this needs testing... */
1656	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1657	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1658	#else /* wine suggests: */
1659	pSurface->formatGL = GL_RGBA;
1660	pSurface->typeGL = GL_UNSIGNED_BYTE;
1661	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1662	#endif
1663	break;
1664
1665	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1666	AssertMsgFailed(("Test me - SVGA3D_DXT4\n"));
1667	break;
1668
1669	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1670	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1671	#if 0 /** @todo this needs testing... */
1672	pSurface->formatGL = GL_RGBA_S3TC;
1673	pSurface->typeGL = GL_UNSIGNED_INT;
1674	#else /* wine suggests: */
1675	pSurface->formatGL = GL_RGBA;
1676	pSurface->typeGL = GL_UNSIGNED_BYTE;
1677	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1678	#endif
1679	break;
1680
1681	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1682	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1683	pSurface->formatGL = GL_LUMINANCE;
1684	pSurface->typeGL = GL_UNSIGNED_BYTE;
1685	break;
1686
1687	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1688	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1689	pSurface->formatGL = GL_LUMINANCE;
1690	pSurface->typeGL = GL_UNSIGNED_SHORT;
1691	break;
1692
1693	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1694	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1695	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1696	pSurface->typeGL = GL_UNSIGNED_BYTE;
1697	break;
1698
1699	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1700	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1701	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1702	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1703	break;
1704
1705	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1706	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1707	pSurface->formatGL = GL_ALPHA;
1708	pSurface->typeGL = GL_UNSIGNED_BYTE;
1709	break;
1710
1711	#if 0
1712
1713	/* Bump-map formats */
1714	case SVGA3D_BUMPU8V8:
1715	return D3DFMT_V8U8;
1716	case SVGA3D_BUMPL6V5U5:
1717	return D3DFMT_L6V5U5;
1718	case SVGA3D_BUMPX8L8V8U8:
1719	return D3DFMT_X8L8V8U8;
1720	case SVGA3D_BUMPL8V8U8:
1721	/* No corresponding D3D9 equivalent. */
1722	AssertFailedReturn(D3DFMT_UNKNOWN);
1723	/* signed bump-map formats */
1724	case SVGA3D_V8U8:
1725	return D3DFMT_V8U8;
1726	case SVGA3D_Q8W8V8U8:
1727	return D3DFMT_Q8W8V8U8;
1728	case SVGA3D_CxV8U8:
1729	return D3DFMT_CxV8U8;
1730	/* mixed bump-map formats */
1731	case SVGA3D_X8L8V8U8:
1732	return D3DFMT_X8L8V8U8;
1733	case SVGA3D_A2W10V10U10:
1734	return D3DFMT_A2W10V10U10;
1735	#endif
1736
1737	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1738	pSurface->internalFormatGL = GL_RGBA16F;
1739	pSurface->formatGL = GL_RGBA;
1740	#if 0 /* bird: wine uses half float, sounds correct to me... */
1741	pSurface->typeGL = GL_FLOAT;
1742	#else
1743	pSurface->typeGL = GL_HALF_FLOAT;
1744	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1745	#endif
1746	break;
1747
1748	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1749	pSurface->internalFormatGL = GL_RGBA32F;
1750	pSurface->formatGL = GL_RGBA;
1751	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1752	break;
1753
1754	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1755	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1756	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1757	pSurface->formatGL = GL_RGBA;
1758	#else
1759	pSurface->formatGL = GL_BGRA;
1760	#endif
1761	pSurface->typeGL = GL_UNSIGNED_INT;
1762	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1763	break;
1764
1765
1766	/* Single- and dual-component floating point formats */
1767	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1768	pSurface->internalFormatGL = GL_R16F;
1769	pSurface->formatGL = GL_RED;
1770	#if 0 /* bird: wine uses half float, sounds correct to me... */
1771	pSurface->typeGL = GL_FLOAT;
1772	#else
1773	pSurface->typeGL = GL_HALF_FLOAT;
1774	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1775	#endif
1776	break;
1777	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1778	pSurface->internalFormatGL = GL_R32F;
1779	pSurface->formatGL = GL_RG;
1780	pSurface->typeGL = GL_FLOAT;
1781	break;
1782	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1783	pSurface->internalFormatGL = GL_RG16F;
1784	pSurface->formatGL = GL_RG;
1785	#if 0 /* bird: wine uses half float, sounds correct to me... */
1786	pSurface->typeGL = GL_FLOAT;
1787	#else
1788	pSurface->typeGL = GL_HALF_FLOAT;
1789	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1790	#endif
1791	break;
1792	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1793	pSurface->internalFormatGL = GL_RG32F;
1794	pSurface->formatGL = GL_RG;
1795	pSurface->typeGL = GL_FLOAT;
1796	break;
1797
1798	/*
1799	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1800	* the most efficient format to use when creating new surfaces
1801	* expressly for index or vertex data.
1802	*/
1803	case SVGA3D_BUFFER:
1804	pSurface->internalFormatGL = -1;
1805	pSurface->formatGL = -1;
1806	pSurface->typeGL = -1;
1807	break;
1808
1809	#if 0
1810	return D3DFMT_UNKNOWN;
1811
1812	case SVGA3D_V16U16:
1813	return D3DFMT_V16U16;
1814	#endif
1815
1816	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1817	pSurface->internalFormatGL = GL_RG16;
1818	pSurface->formatGL = GL_RG;
1819	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1820	pSurface->typeGL = GL_UNSIGNED_INT;
1821	#else
1822	pSurface->typeGL = GL_UNSIGNED_SHORT;
1823	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1824	#endif
1825	break;
1826
1827	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1828	pSurface->internalFormatGL = GL_RGBA16;
1829	pSurface->formatGL = GL_RGBA;
1830	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1831	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1832	#else
1833	pSurface->typeGL = GL_UNSIGNED_SHORT;
1834	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1835	#endif
1836	break;
1837
1838	#if 0
1839	/* Packed Video formats */
1840	case SVGA3D_UYVY:
1841	return D3DFMT_UYVY;
1842	case SVGA3D_YUY2:
1843	return D3DFMT_YUY2;
1844
1845	/* Planar video formats */
1846	case SVGA3D_NV12:
1847	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1848
1849	/* Video format with alpha */
1850	case SVGA3D_AYUV:
1851	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1852
1853	case SVGA3D_BC4_UNORM:
1854	case SVGA3D_BC5_UNORM:
1855	/* Unknown; only in DX10 & 11 */
1856	break;
1857	#endif
1858	default:
1859	AssertMsgFailed(("Unsupported format %d\n", format));
1860	break;
1861	}
1862	}
1863
1864
1865	#if 0
1866	/**
1867	* Convert SVGA multi sample count value to its D3D equivalent
1868	*/
1869	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1870	{
1871	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1872	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1873
1874	if (multisampleCount > 16)
1875	return D3DMULTISAMPLE_NONE;
1876
1877	/** @todo exact same mapping as d3d? */
1878	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1879	}
1880	#endif
1881
1882	/**
1883	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1884	*
1885	* @param pState The VMSVGA3d state.
1886	* @param pSurface The surface being destroyed.
1887	*/
1888	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1889	{
1890	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1891	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1892
1893	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1894	{
1895	case SVGA3D_SURFACE_CUBEMAP:
1896	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1897	break;
1898
1899	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1900	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1901	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1902	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1903	{
1904	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1905	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1906	}
1907	break;
1908
1909	case SVGA3D_SURFACE_HINT_TEXTURE:
1910	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1911	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1912	{
1913	glDeleteTextures(1, &pSurface->oglId.texture);
1914	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1915	}
1916	break;
1917
1918	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1919	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1920	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1921	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1922	{
1923	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1924	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1925	}
1926	break;
1927
1928	default:
1929	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1930	break;
1931	}
1932	}
1933
1934
1935	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1936	{
1937	for (uint32_t i = 0; i < cCopyBoxes; i++)
1938	{
1939	SVGA3dBox destBox, srcBox;
1940
1941	srcBox.x = pBox[i].srcx;
1942	srcBox.y = pBox[i].srcy;
1943	srcBox.z = pBox[i].srcz;
1944	srcBox.w = pBox[i].w;
1945	srcBox.h = pBox[i].h;
1946	srcBox.d = pBox[i].d;
1947
1948	destBox.x = pBox[i].x;
1949	destBox.y = pBox[i].y;
1950	destBox.z = pBox[i].z;
1951	destBox.w = pBox[i].w;
1952	destBox.h = pBox[i].h;
1953	destBox.d = pBox[i].d;
1954
1955	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1956	AssertRCReturn(rc, rc);
1957	}
1958	return VINF_SUCCESS;
1959	}
1960
1961
1962	/**
1963	* Save texture unpacking parameters and loads those appropriate for the given
1964	* surface.
1965	*
1966	* @param pState The VMSVGA3D state structure.
1967	* @param pContext The active context.
1968	* @param pSurface The surface.
1969	* @param pSave Where to save stuff.
1970	*/
1971	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1972	PVMSVGAPACKPARAMS pSave)
1973	{
1974	RT_NOREF(pState);
1975
1976	/*
1977	* Save (ignore errors, setting the defaults we want and avoids restore).
1978	*/
1979	pSave->iAlignment = 1;
1980	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1981	pSave->cxRow = 0;
1982	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1983
1984	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1985	pSave->cyImage = 0;
1986	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1987	Assert(pSave->cyImage == 0);
1988
1989	pSave->fSwapBytes = GL_FALSE;
1990	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1991	Assert(pSave->fSwapBytes == GL_FALSE);
1992
1993	pSave->fLsbFirst = GL_FALSE;
1994	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1995	Assert(pSave->fLsbFirst == GL_FALSE);
1996
1997	pSave->cSkipRows = 0;
1998	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1999	Assert(pSave->cSkipRows == 0);
2000
2001	pSave->cSkipPixels = 0;
2002	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2003	Assert(pSave->cSkipPixels == 0);
2004
2005	pSave->cSkipImages = 0;
2006	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2007	Assert(pSave->cSkipImages == 0);
2008
2009	VMSVGA3D_CLEAR_GL_ERRORS();
2010	#endif
2011
2012	/*
2013	* Setup unpack.
2014	*
2015	* Note! We use 1 as alignment here because we currently don't do any
2016	* aligning of line pitches anywhere.
2017	*/
2018	NOREF(pSurface);
2019	if (pSave->iAlignment != 1)
2020	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2021	if (pSave->cxRow != 0)
2022	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2023	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2024	if (pSave->cyImage != 0)
2025	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2026	if (pSave->fSwapBytes != 0)
2027	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2028	if (pSave->fLsbFirst != 0)
2029	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2030	if (pSave->cSkipRows != 0)
2031	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2032	if (pSave->cSkipPixels != 0)
2033	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2034	if (pSave->cSkipImages != 0)
2035	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2036	#endif
2037	}
2038
2039
2040	/**
2041	* Restores texture unpacking parameters.
2042	*
2043	* @param pState The VMSVGA3D state structure.
2044	* @param pContext The active context.
2045	* @param pSurface The surface.
2046	* @param pSave Where stuff was saved.
2047	*/
2048	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2049	PCVMSVGAPACKPARAMS pSave)
2050	{
2051	RT_NOREF(pState, pSurface);
2052
2053	if (pSave->iAlignment != 1)
2054	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2055	if (pSave->cxRow != 0)
2056	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2057	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2058	if (pSave->cyImage != 0)
2059	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2060	if (pSave->fSwapBytes != 0)
2061	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2062	if (pSave->fLsbFirst != 0)
2063	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2064	if (pSave->cSkipRows != 0)
2065	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2066	if (pSave->cSkipPixels != 0)
2067	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2068	if (pSave->cSkipImages != 0)
2069	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2070	#endif
2071	}
2072
2073
2074	/**
2075	* Create D3D/OpenGL texture object for the specified surface.
2076	*
2077	* Surfaces are created when needed.
2078	*
2079	* @param pState The VMSVGA3d state.
2080	* @param pContext The context.
2081	* @param idAssociatedContext Probably the same as pContext->id.
2082	* @param pSurface The surface to create the texture for.
2083	*/
2084	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2085	PVMSVGA3DSURFACE pSurface)
2086	{
2087	RT_NOREF(idAssociatedContext);
2088	GLint activeTexture = 0;
2089	uint32_t idPrevCtx = pState->idActiveContext;
2090	pContext = &pState->SharedCtx;
2091	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2092
2093	glGenTextures(1, &pSurface->oglId.texture);
2094	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2095	/** @todo Set the mip map generation filter settings. */
2096
2097	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2098	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2099
2100	/* Must bind texture to the current context in order to change it. */
2101	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2102	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2103
2104	/* Set the unpacking parameters. */
2105	VMSVGAPACKPARAMS SavedParams;
2106	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2107
2108	/* Set the mipmap base and max level parameters. */
2109	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2111	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2112	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2113
2114	if (pSurface->fDirty)
2115	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2116
2117	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2118	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2119	{
2120	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2121	exposing random host memory to the guest and helps a with the fedora 21 surface
2122	corruption issues (launchpad, background, search field, login). */
2123	if (pSurface->pMipmapLevels[i].fDirty)
2124	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2125
2126	glTexImage2D(GL_TEXTURE_2D,
2127	i,
2128	pSurface->internalFormatGL,
2129	pSurface->pMipmapLevels[i].mipmapSize.width,
2130	pSurface->pMipmapLevels[i].mipmapSize.height,
2131	0,
2132	pSurface->formatGL,
2133	pSurface->typeGL,
2134	pSurface->pMipmapLevels[i].pSurfaceData);
2135
2136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2137
2138	pSurface->pMipmapLevels[i].fDirty = false;
2139	}
2140	pSurface->fDirty = false;
2141
2142	/* Restore unpacking parameters. */
2143	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2144
2145	/* Restore the old active texture. */
2146	glBindTexture(GL_TEXTURE_2D, activeTexture);
2147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2148
2149	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2150
2151	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2152	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2153	return VINF_SUCCESS;
2154	}
2155
2156
2157	/**
2158	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2159	*
2160	* @returns VBox status code.
2161	* @param pThis The VGA device instance.
2162	* @param pState The VMSVGA3d state.
2163	* @param pDstSurface The destination host surface.
2164	* @param uDstFace The destination face (valid).
2165	* @param uDstMipmap The destination mipmap level (valid).
2166	* @param pDstBox The destination box.
2167	* @param pSrcSurface The source host surface.
2168	* @param uSrcFace The destination face (valid).
2169	* @param uSrcMipmap The source mimap level (valid).
2170	* @param pSrcBox The source box.
2171	* @param enmMode The strecht blt mode .
2172	* @param pContext The VMSVGA3d context (already current for OGL).
2173	*/
2174	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2175	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2176	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2177	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2178	{
2179	RT_NOREF(pThis);
2180	RT_NOREF2(uDstFace, uSrcFace); /// @todo
2181
2182	/* Activate the read and draw framebuffer objects. */
2183	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2185	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2187
2188	/* Bind the source and destination objects to the right place. */
2189	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2190	pSrcSurface->oglId.texture, uSrcMipmap);
2191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2192	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2193	pDstSurface->oglId.texture, uDstMipmap);
2194	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2195
2196	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2197	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2198	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2199	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2200	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2201
2202	pState->ext.glBlitFramebuffer(pSrcBox->x,
2203	pSrcBox->y,
2204	pSrcBox->x + pSrcBox->w, /* exclusive. */
2205	pSrcBox->y + pSrcBox->h,
2206	pDstBox->x,
2207	pDstBox->y,
2208	pDstBox->x + pDstBox->w, /* exclusive. */
2209	pDstBox->y + pDstBox->h,
2210	GL_COLOR_BUFFER_BIT,
2211	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2212	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2213
2214	/* Reset the frame buffer association */
2215	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2216	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2217
2218	return VINF_SUCCESS;
2219	}
2220
2221	/**
2222	* Save texture packing parameters and loads those appropriate for the given
2223	* surface.
2224	*
2225	* @param pState The VMSVGA3D state structure.
2226	* @param pContext The active context.
2227	* @param pSurface The surface.
2228	* @param pSave Where to save stuff.
2229	*/
2230	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2231	PVMSVGAPACKPARAMS pSave)
2232	{
2233	RT_NOREF(pState);
2234	/*
2235	* Save (ignore errors, setting the defaults we want and avoids restore).
2236	*/
2237	pSave->iAlignment = 1;
2238	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2239	pSave->cxRow = 0;
2240	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2241
2242	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2243	pSave->cyImage = 0;
2244	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2245	Assert(pSave->cyImage == 0);
2246
2247	pSave->fSwapBytes = GL_FALSE;
2248	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2249	Assert(pSave->fSwapBytes == GL_FALSE);
2250
2251	pSave->fLsbFirst = GL_FALSE;
2252	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2253	Assert(pSave->fLsbFirst == GL_FALSE);
2254
2255	pSave->cSkipRows = 0;
2256	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2257	Assert(pSave->cSkipRows == 0);
2258
2259	pSave->cSkipPixels = 0;
2260	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2261	Assert(pSave->cSkipPixels == 0);
2262
2263	pSave->cSkipImages = 0;
2264	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2265	Assert(pSave->cSkipImages == 0);
2266
2267	VMSVGA3D_CLEAR_GL_ERRORS();
2268	#endif
2269
2270	/*
2271	* Setup unpack.
2272	*
2273	* Note! We use 1 as alignment here because we currently don't do any
2274	* aligning of line pitches anywhere.
2275	*/
2276	NOREF(pSurface);
2277	if (pSave->iAlignment != 1)
2278	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2279	if (pSave->cxRow != 0)
2280	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2281	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2282	if (pSave->cyImage != 0)
2283	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2284	if (pSave->fSwapBytes != 0)
2285	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2286	if (pSave->fLsbFirst != 0)
2287	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2288	if (pSave->cSkipRows != 0)
2289	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2290	if (pSave->cSkipPixels != 0)
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2292	if (pSave->cSkipImages != 0)
2293	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2294	#endif
2295	}
2296
2297
2298	/**
2299	* Restores texture packing parameters.
2300	*
2301	* @param pState The VMSVGA3D state structure.
2302	* @param pContext The active context.
2303	* @param pSurface The surface.
2304	* @param pSave Where stuff was saved.
2305	*/
2306	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2307	PCVMSVGAPACKPARAMS pSave)
2308	{
2309	RT_NOREF(pState, pSurface);
2310	if (pSave->iAlignment != 1)
2311	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2312	if (pSave->cxRow != 0)
2313	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2314	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2315	if (pSave->cyImage != 0)
2316	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2317	if (pSave->fSwapBytes != 0)
2318	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2319	if (pSave->fLsbFirst != 0)
2320	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2321	if (pSave->cSkipRows != 0)
2322	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2323	if (pSave->cSkipPixels != 0)
2324	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2325	if (pSave->cSkipImages != 0)
2326	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2327	#endif
2328	}
2329
2330
2331	/**
2332	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2333	*
2334	* @returns Failure status code or @a rc.
2335	* @param pThis The VGA device instance data.
2336	* @param pState The VMSVGA3d state.
2337	* @param pSurface The host surface.
2338	* @param pMipLevel Mipmap level. The caller knows it already.
2339	* @param uHostFace The host face (valid).
2340	* @param uHostMipmap The host mipmap level (valid).
2341	* @param GuestPtr The guest pointer.
2342	* @param cbGuestPitch The guest pitch.
2343	* @param transfer The transfer direction.
2344	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2345	* @param pContext The context (for OpenGL).
2346	* @param rc The current rc for all boxes.
2347	* @param iBox The current box number (for Direct 3D).
2348	*/
2349	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2350	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2351	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2352	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2353	{
2354	RT_NOREF(iBox);
2355	RT_NOREF(uHostFace); /// @todo
2356
2357	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2358	{
2359	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2360	case SVGA3D_SURFACE_HINT_TEXTURE:
2361	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2362	{
2363	uint32_t cbSurfacePitch;
2364	uint8_t *pDoubleBuffer;
2365	uint32_t offHst;
2366
2367	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2368	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2369
2370	if (transfer == SVGA3D_READ_HOST_VRAM)
2371	{
2372	GLint activeTexture;
2373
2374	/* Must bind texture to the current context in order to read it. */
2375	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2376	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2377
2378	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2379	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2380
2381	/* Set row length and alignment of the input data. */
2382	VMSVGAPACKPARAMS SavedParams;
2383	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2384
2385	glGetTexImage(GL_TEXTURE_2D,
2386	uHostMipmap,
2387	pSurface->formatGL,
2388	pSurface->typeGL,
2389	pDoubleBuffer);
2390	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2391
2392	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2393
2394	/* Restore the old active texture. */
2395	glBindTexture(GL_TEXTURE_2D, activeTexture);
2396	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2397
2398	offHst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2399	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2400	}
2401	else
2402	{
2403	/* The buffer will contain only the copied rectangle. */
2404	offHst = 0;
2405	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2406	}
2407
2408	uint32_t const offGst = pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch; /// @todo compressed fmts
2409
2410	rc = vmsvgaGMRTransfer(pThis,
2411	transfer,
2412	pDoubleBuffer,
2413	pMipLevel->cbSurface,
2414	offHst,
2415	cbSurfacePitch,
2416	GuestPtr,
2417	offGst,
2418	cbGuestPitch,
2419	pBox->w * pSurface->cbBlock,
2420	pBox->h);
2421	AssertRC(rc);
2422
2423	/* Update the opengl surface data. */
2424	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2425	{
2426	GLint activeTexture = 0;
2427
2428	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2429	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2430
2431	/* Must bind texture to the current context in order to change it. */
2432	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2433	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2434
2435	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2436
2437	/* Set row length and alignment of the input data. */
2438	VMSVGAPACKPARAMS SavedParams;
2439	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2440
2441	glTexSubImage2D(GL_TEXTURE_2D,
2442	uHostMipmap,
2443	pBox->x,
2444	pBox->y,
2445	pBox->w,
2446	pBox->h,
2447	pSurface->formatGL,
2448	pSurface->typeGL,
2449	pDoubleBuffer);
2450
2451	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2452
2453	/* Restore old values. */
2454	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2455
2456	/* Restore the old active texture. */
2457	glBindTexture(GL_TEXTURE_2D, activeTexture);
2458	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2459	}
2460
2461	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2462
2463	/* Free the double buffer. */
2464	RTMemFree(pDoubleBuffer);
2465	break;
2466	}
2467
2468	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2469	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2470	break;
2471
2472	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2473	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2474	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2475	{
2476	/* Caller already clipped pBox and buffers are 1-dimensional. */
2477	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2478
2479	VMSVGA3D_CLEAR_GL_ERRORS();
2480	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2481	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2482	{
2483	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2484	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2485	if (RT_LIKELY(pbData != NULL))
2486	{
2487	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2488	GLint cbStrictBufSize;
2489	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2490	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2491	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2492	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2493	#endif
2494	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2495	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2496	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2497	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2498
2499	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2500
2501	rc = vmsvgaGMRTransfer(pThis,
2502	transfer,
2503	pbData,
2504	pMipLevel->cbSurface,
2505	offHst,
2506	pMipLevel->cbSurfacePitch,
2507	GuestPtr,
2508	pBox->srcx * pSurface->cbBlock,
2509	cbGuestPitch,
2510	pBox->w * pSurface->cbBlock,
2511	pBox->h);
2512	AssertRC(rc);
2513
2514	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2515
2516	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2517	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2518	}
2519	else
2520	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2521	}
2522	else
2523	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2524	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2525	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2526	break;
2527	}
2528
2529	default:
2530	AssertFailed();
2531	break;
2532	}
2533
2534	return rc;
2535	}
2536
2537
2538	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2539	{
2540	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2541	Log(("vmsvga3dSurfaceBlitToScreen: dest=%d (%d,%d)(%d,%d) surface=%x (face=%d, mipmap=%d) (%d,%d)(%d,%d) cRects=%d\n", dest, destRect.left, destRect.top, destRect.right, destRect.bottom, src.sid, src.face, src.mipmap, srcRect.left, srcRect.top, srcRect.right, srcRect.bottom, cRects));
2542	for (uint32_t i = 0; i < cRects; i++)
2543	{
2544	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2545	}
2546
2547	/** @todo Only screen 0 for now. */
2548	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2549	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2550	/** @todo scaling */
2551	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2552
2553	if (cRects == 0)
2554	{
2555	/* easy case; no clipping */
2556	SVGA3dCopyBox box;
2557	SVGA3dGuestImage dst;
2558
2559	box.x = destRect.left;
2560	box.y = destRect.top;
2561	box.z = 0;
2562	box.w = destRect.right - destRect.left;
2563	box.h = destRect.bottom - destRect.top;
2564	box.d = 1;
2565	box.srcx = srcRect.left;
2566	box.srcy = srcRect.top;
2567	box.srcz = 0;
2568
2569	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2570	dst.ptr.offset = pThis->svga.uScreenOffset;
2571	dst.pitch = pThis->svga.cbScanline;
2572
2573	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2574	AssertRCReturn(rc, rc);
2575
2576	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2577	return VINF_SUCCESS;
2578	}
2579	else
2580	{
2581	SVGA3dGuestImage dst;
2582	SVGA3dCopyBox box;
2583
2584	box.srcz = 0;
2585	box.z = 0;
2586	box.d = 1;
2587
2588	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2589	dst.ptr.offset = pThis->svga.uScreenOffset;
2590	dst.pitch = pThis->svga.cbScanline;
2591
2592	/** @todo merge into one SurfaceDMA call */
2593	for (uint32_t i = 0; i < cRects; i++)
2594	{
2595	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2596	box.srcx = srcRect.left + pRect[i].left;
2597	box.srcy = srcRect.top + pRect[i].top;
2598
2599	box.x = pRect[i].left + destRect.left;
2600	box.y = pRect[i].top + destRect.top;
2601	box.z = 0;
2602	box.w = pRect[i].right - pRect[i].left;
2603	box.h = pRect[i].bottom - pRect[i].top;
2604
2605	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2606	AssertRCReturn(rc, rc);
2607
2608	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2609	}
2610
2611	return VINF_SUCCESS;
2612	}
2613	}
2614
2615	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2616	{
2617	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2618	PVMSVGA3DSURFACE pSurface;
2619	int rc = VINF_SUCCESS;
2620	PVMSVGA3DCONTEXT pContext;
2621	uint32_t cid;
2622	GLint activeTexture = 0;
2623
2624	AssertReturn(pState, VERR_NO_MEMORY);
2625	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2626	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2627
2628	pSurface = pState->papSurfaces[sid];
2629
2630	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2631	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2632	pSurface->autogenFilter = filter;
2633
2634	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2635
2636	cid = SVGA3D_INVALID_ID;
2637	pContext = &pState->SharedCtx;
2638	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2639
2640	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2641	{
2642	/* Unknown surface type; turn it into a texture. */
2643	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2644	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2645	AssertRCReturn(rc, rc);
2646	}
2647	else
2648	{
2649	/** @todo new filter */
2650	AssertFailed();
2651	}
2652
2653	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2655
2656	/* Must bind texture to the current context in order to change it. */
2657	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2659
2660	/* Generate the mip maps. */
2661	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2662	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2663
2664	/* Restore the old texture. */
2665	glBindTexture(GL_TEXTURE_2D, activeTexture);
2666	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2667
2668	return VINF_SUCCESS;
2669	}
2670
2671	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2672	{
2673	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2674	PVMSVGA3DSURFACE pSurface;
2675	PVMSVGA3DCONTEXT pContext;
2676	uint32_t cid;
2677
2678	AssertReturn(pState, VERR_NO_MEMORY);
2679	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2680	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2681
2682	pSurface = pState->papSurfaces[sid];
2683
2684	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2685	for (uint32_t i=0; i < cRects; i++)
2686	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));
2687
2688	pContext = &pState->SharedCtx;
2689	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2690	cid = pContext->id;
2691	VMSVGA3D_CLEAR_GL_ERRORS();
2692
2693	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2694	/*
2695	* Source surface different size?
2696	*/
2697	RTRECT2 srcViewPort;
2698	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2699	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2700	{
2701	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2702	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2703
2704	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2705	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2706	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2707	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2708
2709	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2710	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2711	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2712	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2713	}
2714	else
2715	{
2716	srcViewPort.x = pThis->svga.viewport.x;
2717	srcViewPort.y = pThis->svga.viewport.y;
2718	srcViewPort.cx = pThis->svga.viewport.cx;
2719	srcViewPort.cy = pThis->svga.viewport.cy;
2720	}
2721	RTRECT SrcViewPortRect;
2722	SrcViewPortRect.xLeft = srcViewPort.x;
2723	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2724	SrcViewPortRect.yBottom = srcViewPort.y;
2725	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2726	#endif
2727
2728
2729	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2730	/*
2731	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2732	*/
2733	SVGA3dCopyRect rect;
2734	uint32_t oldVShader, oldPShader;
2735	GLint oldTextureId;
2736
2737	if (cRects == 0)
2738	{
2739	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2740	rect.w = pSurface->pMipmapLevels[0].size.width;
2741	rect.h = pSurface->pMipmapLevels[0].size.height;
2742	pRect = &rect;
2743	cRects = 1;
2744	}
2745
2746	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2747
2748	#if 0
2749	glDisable(GL_CULL_FACE);
2750	glDisable(GL_BLEND);
2751	glDisable(GL_ALPHA_TEST);
2752	glDisable(GL_SCISSOR_TEST);
2753	glDisable(GL_STENCIL_TEST);
2754	glEnable(GL_DEPTH_TEST);
2755	glDepthFunc(GL_ALWAYS);
2756	glDepthMask(GL_TRUE);
2757	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2758	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2759	#endif
2760
2761	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2762
2763	oldVShader = pContext->state.shidVertex;
2764	oldPShader = pContext->state.shidPixel;
2765	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2766	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2767
2768	/* Flush shader changes. */
2769	if (pContext->pShaderContext)
2770	ShaderUpdateState(pContext->pShaderContext, 0);
2771
2772	/* Activate the read and draw framebuffer objects. */
2773	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2774	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2775
2776	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2777	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2778	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2779
2780	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2781	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2782
2783	#if 0
2784	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2785	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2786	#endif
2787
2788	/* Reset the transformation matrices. */
2789	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2790	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2791	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2792	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2793	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2794	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2795	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2796	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2797
2798	for (uint32_t i = 0; i < cRects; i++)
2799	{
2800	float left, right, top, bottom; /* Texture coordinates */
2801	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2802
2803	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2804	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2805	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2806	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2807	pRect[i].w = pThis->svga.viewport.cx;
2808	pRect[i].h = pThis->svga.viewport.cy;
2809
2810	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2811	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2812	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2813	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2814	{
2815	/* Intersection is empty; skip */
2816	continue;
2817	}
2818
2819	left = pRect[i].srcx;
2820	right = pRect[i].srcx + pRect[i].w;
2821	top = pRect[i].srcy + pRect[i].h;
2822	bottom = pRect[i].srcy;
2823
2824	left /= pSurface->pMipmapLevels[0].size.width;
2825	right /= pSurface->pMipmapLevels[0].size.width;
2826	top /= pSurface->pMipmapLevels[0].size.height;
2827	bottom /= pSurface->pMipmapLevels[0].size.height;
2828
2829	vertexLeft = pRect[i].x;
2830	vertexRight = pRect[i].x + pRect[i].w;
2831	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2832	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2833
2834	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2835	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2836	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)));
2837
2838	glBegin(GL_QUADS);
2839
2840	/* bottom left */
2841	glTexCoord2f(left, bottom);
2842	glVertex2i(vertexLeft, vertexBottom);
2843
2844	/* top left */
2845	glTexCoord2f(left, top);
2846	glVertex2i(vertexLeft, vertexTop);
2847
2848	/* top right */
2849	glTexCoord2f(right, top);
2850	glVertex2i(vertexRight, vertexTop);
2851
2852	/* bottom right */
2853	glTexCoord2f(right, bottom);
2854	glVertex2i(vertexRight, vertexBottom);
2855
2856	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2857	}
2858
2859	/* Restore old settings. */
2860	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2861	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2862	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2863	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2864
2865	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2866
2867	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2868	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2869	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2870
2871	#else
2872	/*
2873	* glBlitFramebuffer variant.
2874	*/
2875	/* Activate the read and draw framebuffer objects. */
2876	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2877	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2878	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2879	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2880
2881	/* Bind the source objects to the right place. */
2882	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2883	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2884
2885
2886	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2887	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2888	ASMCompilerBarrier(); /* paranoia */
2889	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2890
2891	/* If there are no recangles specified, just grab a screenful. */
2892	SVGA3dCopyRect DummyRect;
2893	if (cRects != 0)
2894	{ /* likely */ }
2895	else
2896	{
2897	/** @todo Find the usecase for this or check what the original device does.
2898	* The original code was doing some scaling based on the surface
2899	* size... */
2900	# ifdef DEBUG_bird
2901	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2902	# endif
2903	DummyRect.x = DummyRect.srcx = 0;
2904	DummyRect.y = DummyRect.srcy = 0;
2905	DummyRect.w = pThis->svga.uWidth;
2906	DummyRect.h = pThis->svga.uHeight;
2907	cRects = 1;
2908	pRect = &DummyRect;
2909	}
2910
2911	/*
2912	* Blit the surface rectangle(s) to the back buffer.
2913	*/
2914	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
2915	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
2916	for (uint32_t i = 0; i < cRects; i++)
2917	{
2918	SVGA3dCopyRect ClippedRect = pRect[i];
2919
2920	/*
2921	* Do some sanity checking and limit width and height, all so we
2922	* don't need to think about wrap-arounds below.
2923	*/
2924	if (RT_LIKELY( ClippedRect.w
2925	&& ClippedRect.x < VMSVGA_MAX_X
2926	&& ClippedRect.srcx < VMSVGA_MAX_X
2927	&& ClippedRect.h
2928	&& ClippedRect.y < VMSVGA_MAX_Y
2929	&& ClippedRect.srcy < VMSVGA_MAX_Y
2930	))
2931	{ /* likely */ }
2932	else
2933	continue;
2934
2935	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
2936	{ /* likely */ }
2937	else
2938	ClippedRect.w = VMSVGA_MAX_X;
2939	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
2940	{ /* likely */ }
2941	else
2942	ClippedRect.h = VMSVGA_MAX_Y;
2943
2944
2945	/*
2946	* Source surface clipping (paranoia). Straight forward.
2947	*/
2948	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2949	{ /* likely */ }
2950	else
2951	continue;
2952	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2953	{ /* likely */ }
2954	else
2955	{
2956	AssertFailed(); /* remove if annoying. */
2957	ClippedRect.w = cxSurface - ClippedRect.srcx;
2958	}
2959
2960	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2961	{ /* likely */ }
2962	else
2963	continue;
2964	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2965	{ /* likely */ }
2966	else
2967	{
2968	AssertFailed(); /* remove if annoying. */
2969	ClippedRect.h = cySurface - ClippedRect.srcy;
2970	}
2971
2972	/*
2973	* Destination viewport clipping - real PITA.
2974	*
2975	* We have to take the following into account here:
2976	* - The source image is Y inverted.
2977	* - The destination framebuffer is in world and not window coordinates,
2978	* just like the source surface. This means working in the first quadrant.
2979	* - The viewport is in window coordinate, that is fourth quadrant and
2980	* negated Y values.
2981	* - The destination framebuffer is not scrolled, so we have to blit
2982	* what's visible into the top of the framebuffer.
2983	*
2984	*
2985	* To illustrate:
2986	*
2987	* source destination 0123456789
2988	* 8 ^---------- 8 ^---------- 0 ----------->
2989	* 7 \| \| 7 \| \| 1 \| \|
2990	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
2991	* 5 \| *** \| 5 \| * \| 3 \| * \|
2992	* 4 \| * \| => 4 \| * \| => 4 \| * \|
2993	* 3 \| * \| 3 \| * \| 5 \| * \|
2994	* 2 \| ******* \| 2 \| \| 6 \| \|
2995	* 1 \| \| 1 \| \| 7 \| \|
2996	* 0 -----------> 0 -----------> 8 v----------
2997	* 0123456789 0123456789 Destination window
2998	*
2999	* From the above, it follows that a destination viewport given in
3000	* window coordinates matches the source exactly when srcy = srcx = 0.
3001	*
3002	* Example (Y only):
3003	* ySrc = 0
3004	* yDst = 0
3005	* cyCopy = 9
3006	* cyScreen = cyCopy
3007	* cySurface >= cyCopy
3008	* yViewport = 5
3009	* cyViewport = 2 (i.e. '\| *** \|'
3010	* '\| \|' )
3011	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3012	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3013	*
3014	* We can see from the illustration that the final result should be:
3015	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3016	* DstRect = (0,2) (11, 4)
3017	*
3018	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3019	* easier to follow:
3020	* SrcRect = (0,5) (11, 7)
3021	*
3022	* From the top, Y values only:
3023	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3024	*
3025	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3026	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3027	* Copy.yDst += cyAdjust = 2;
3028	* Copy.ySrc = unchanged;
3029	* Copy.cx -= cyAdjust = 7;
3030	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3031	*
3032	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3033	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3034	* Copy.yDst = unchanged;
3035	* Copy.ySrc += cyAdjust = 5;
3036	* Copy.cx -= cyAdjust = 2;
3037	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3038	*
3039	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3040	* when the view is resized, moved and otherwise messed with,
3041	* the visible part of the framebuffer is actually the bottom
3042	* one. It's easy to adjust for this, just have to adjust the
3043	* destination rectangle such that yBottom is zero.
3044	*/
3045	/* X - no inversion, so kind of simple. */
3046	if (ClippedRect.x >= DstViewport.x)
3047	{
3048	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3049	{ /* typical */ }
3050	else if (ClippedRect.x < DstViewport.xRight)
3051	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3052	else
3053	continue;
3054	}
3055	else
3056	{
3057	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3058	if (cxAdjust < ClippedRect.w)
3059	{
3060	ClippedRect.w -= cxAdjust;
3061	ClippedRect.x += cxAdjust;
3062	ClippedRect.srcx += cxAdjust;
3063	}
3064	else
3065	continue;
3066
3067	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3068	{ /* typical */ }
3069	else
3070	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3071	}
3072
3073	/* Y - complicated, see above. */
3074	if (ClippedRect.y >= DstViewport.yLowWC)
3075	{
3076	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3077	{ /* typical */ }
3078	else if (ClippedRect.y < DstViewport.yHighWC)
3079	{
3080	/* adjustment #2 */
3081	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3082	ClippedRect.srcy += cyAdjust;
3083	ClippedRect.h -= cyAdjust;
3084	}
3085	else
3086	continue;
3087	}
3088	else
3089	{
3090	/* adjustment #1 */
3091	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3092	if (cyAdjust < ClippedRect.h)
3093	{
3094	ClippedRect.y += cyAdjust;
3095	ClippedRect.h -= cyAdjust;
3096	}
3097	else
3098	continue;
3099
3100	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3101	{ /* typical */ }
3102	else
3103	{
3104	/* adjustment #2 */
3105	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3106	ClippedRect.srcy += cyAdjust;
3107	ClippedRect.h -= cyAdjust;
3108	}
3109	}
3110
3111	/* Calc source rectangle with y flipping wrt destination. */
3112	RTRECT SrcRect;
3113	SrcRect.xLeft = ClippedRect.srcx;
3114	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3115	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3116	SrcRect.yTop = ClippedRect.srcy;
3117
3118	/* Calc destination rectangle. */
3119	RTRECT DstRect;
3120	DstRect.xLeft = ClippedRect.x;
3121	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3122	DstRect.yBottom = ClippedRect.y;
3123	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3124
3125	/* Adjust for viewport. */
3126	DstRect.xLeft -= DstViewport.x;
3127	DstRect.xRight -= DstViewport.x;
3128	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3129	DstRect.yTop -= DstRect.yBottom;
3130	DstRect.yBottom = 0;
3131	# else
3132	DstRect.yBottom += DstViewport.y;
3133	DstRect.yTop += DstViewport.y;
3134	# endif
3135
3136	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3137	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3138	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3139	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3140	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3141	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3142	}
3143
3144	#endif
3145
3146	/*
3147	* Flip the front and back buffers.
3148	*/
3149	#ifdef RT_OS_WINDOWS
3150	BOOL fRef = SwapBuffers(pContext->hdc);
3151	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3152	#elif defined(RT_OS_DARWIN)
3153	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3154	#else
3155	/* show the window if not already done */
3156	if (!pContext->fMapped)
3157	{
3158	XMapWindow(pState->display, pContext->window);
3159	pContext->fMapped = true;
3160	}
3161	/* now swap the buffers, i.e. display the rendering result */
3162	glXSwapBuffers(pState->display, pContext->window);
3163	#endif
3164
3165	/*
3166	* Now we can reset the frame buffer association. Doing it earlier means no
3167	* output on darwin.
3168	*/
3169	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3170	return VINF_SUCCESS;
3171	}
3172
3173	#ifdef RT_OS_LINUX
3174	/**
3175	* X11 event handling thread.
3176	*
3177	* @returns VINF_SUCCESS (ignored)
3178	* @param hThreadSelf thread handle
3179	* @param pvUser pointer to pState structure
3180	*/
3181	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3182	{
3183	RT_NOREF(hThreadSelf);
3184	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3185	while (!pState->bTerminate)
3186	{
3187	while (XPending(pState->display) > 0)
3188	{
3189	XEvent event;
3190	XNextEvent(pState->display, &event);
3191
3192	switch (event.type)
3193	{
3194	default:
3195	break;
3196	}
3197	}
3198	/* sleep for 16ms to not burn too many cycles */
3199	RTThreadSleep(16);
3200	}
3201	return VINF_SUCCESS;
3202	}
3203	#endif // RT_OS_LINUX
3204
3205
3206	/**
3207	* Create a new 3d context
3208	*
3209	* @returns VBox status code.
3210	* @param pThis VGA device instance data.
3211	* @param cid Context id
3212	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3213	*/
3214	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3215	{
3216	int rc;
3217	PVMSVGA3DCONTEXT pContext;
3218	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3219
3220	AssertReturn(pState, VERR_NO_MEMORY);
3221	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3222	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3223	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3224	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3225	#endif
3226
3227	Log(("vmsvga3dContextDefine id %x\n", cid));
3228	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3229	if (pState->idTestContext == SVGA_ID_INVALID)
3230	{
3231	pState->idTestContext = 207;
3232	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3233	AssertRCReturn(rc, rc);
3234	}
3235	#endif
3236
3237	if (cid == VMSVGA3D_SHARED_CTX_ID)
3238	pContext = &pState->SharedCtx;
3239	else
3240	{
3241	if (cid >= pState->cContexts)
3242	{
3243	/* Grow the array. */
3244	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3245	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3246	AssertReturn(pvNew, VERR_NO_MEMORY);
3247	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3248	while (pState->cContexts < cNew)
3249	{
3250	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3251	AssertReturn(pContext, VERR_NO_MEMORY);
3252	pContext->id = SVGA3D_INVALID_ID;
3253	pState->papContexts[pState->cContexts++] = pContext;
3254	}
3255	}
3256	/* If one already exists with this id, then destroy it now. */
3257	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3258	vmsvga3dContextDestroy(pThis, cid);
3259
3260	pContext = pState->papContexts[cid];
3261	}
3262
3263	/*
3264	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3265	*/
3266	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3267	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3268	{
3269	pSharedCtx = &pState->SharedCtx;
3270	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3271	{
3272	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3273	AssertLogRelRCReturn(rc, rc);
3274	}
3275	}
3276
3277	/*
3278	* Initialize the context.
3279	*/
3280	memset(pContext, 0, sizeof(*pContext));
3281	pContext->id = cid;
3282	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3283	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3284
3285	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3286	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3287	pContext->idFramebuffer = OPENGL_INVALID_ID;
3288	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3289	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3290
3291	rc = ShaderContextCreate(&pContext->pShaderContext);
3292	AssertRCReturn(rc, rc);
3293
3294	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3295	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3296
3297	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3298
3299	#ifdef RT_OS_WINDOWS
3300	/* Create a context window. */
3301	CREATESTRUCT cs;
3302	cs.lpCreateParams = NULL;
3303	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3304	# ifdef DEBUG_GFX_WINDOW
3305	cs.lpszName = (char *)RTMemAllocZ(256);
3306	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3307	# else
3308	cs.lpszName = NULL;
3309	# endif
3310	cs.lpszClass = 0;
3311	# ifdef DEBUG_GFX_WINDOW
3312	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3313	# else
3314	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3315	# endif
3316	cs.x = 0;
3317	cs.y = 0;
3318	cs.cx = pThis->svga.uWidth;
3319	cs.cy = pThis->svga.uHeight;
3320	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3321	cs.hMenu = NULL;
3322	cs.hInstance = pState->hInstance;
3323
3324	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3325	AssertRCReturn(rc, rc);
3326
3327	pContext->hdc = GetDC(pContext->hwnd);
3328	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3329
3330	PIXELFORMATDESCRIPTOR pfd = {
3331	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3332	1, /* version number */
3333	PFD_DRAW_TO_WINDOW \| /* support window */
3334	PFD_DOUBLEBUFFER \| /* support double buffering */
3335	PFD_SUPPORT_OPENGL, /* support OpenGL */
3336	PFD_TYPE_RGBA, /* RGBA type */
3337	24, /* 24-bit color depth */
3338	0, 0, 0, 0, 0, 0, /* color bits ignored */
3339	8, /* alpha buffer */
3340	0, /* shift bit ignored */
3341	0, /* no accumulation buffer */
3342	0, 0, 0, 0, /* accum bits ignored */
3343	16, /* set depth buffer */
3344	16, /* set stencil buffer */
3345	0, /* no auxiliary buffer */
3346	PFD_MAIN_PLANE, /* main layer */
3347	0, /* reserved */
3348	0, 0, 0 /* layer masks ignored */
3349	};
3350	int pixelFormat;
3351	BOOL ret;
3352
3353	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3354	/** @todo is this really necessary?? */
3355	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3356	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3357
3358	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3359	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3360
3361	pContext->hglrc = wglCreateContext(pContext->hdc);
3362	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3363
3364	if (pSharedCtx)
3365	{
3366	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3367	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3368	}
3369
3370	#elif defined(RT_OS_DARWIN)
3371	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3372
3373	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3374	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3375	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3376	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3377	pThis->svga.uWidth, pThis->svga.uHeight,
3378	pShareContext, pContext->fOtherProfile);
3379
3380	#else
3381	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3382
3383	if (pState->display == NULL)
3384	{
3385	/* get an X display and make sure we have glX 1.3 */
3386	pState->display = XOpenDisplay(0);
3387	Assert(pState->display);
3388	int glxMajor, glxMinor;
3389	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3390	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3391	/* start our X event handling thread */
3392	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3393	if (RT_FAILURE(rc))
3394	{
3395	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3396	return rc;
3397	}
3398	}
3399	int attrib[] =
3400	{
3401	GLX_RGBA,
3402	GLX_RED_SIZE, 1,
3403	GLX_GREEN_SIZE, 1,
3404	GLX_BLUE_SIZE, 1,
3405	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3406	GLX_DOUBLEBUFFER,
3407	None
3408	};
3409	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3410	XSetWindowAttributes swa;
3411	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3412	swa.border_pixel = 0;
3413	swa.background_pixel = 0;
3414	swa.event_mask = StructureNotifyMask \| ExposureMask;
3415	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3416	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3417	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3418	0, vi->depth, InputOutput,
3419	vi->visual, flags, &swa);
3420	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3421	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3422
3423	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3424
3425	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3426	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3427	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3428	#endif
3429
3430	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3431
3432	/* NULL during the first PowerOn call. */
3433	if (pState->ext.glGenFramebuffers)
3434	{
3435	/* Create a framebuffer object for this context. */
3436	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3437	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3438
3439	/* Bind the object to the framebuffer target. */
3440	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3442
3443	/* Create read and draw framebuffer objects for this context. */
3444	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3445	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3446
3447	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3448	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3449
3450	}
3451	#if 0
3452	/** @todo move to shader lib!!! */
3453	/* Clear the screen */
3454	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3455
3456	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3457	glClearIndex(0);
3458	glClearDepth(1);
3459	glClearStencil(0xffff);
3460	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3461	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3462	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3463	if (pState->ext.glProvokingVertex)
3464	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3465	/** @todo move to shader lib!!! */
3466	#endif
3467	return VINF_SUCCESS;
3468	}
3469
3470
3471	/**
3472	* Create a new 3d context
3473	*
3474	* @returns VBox status code.
3475	* @param pThis VGA device instance data.
3476	* @param cid Context id
3477	*/
3478	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3479	{
3480	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3481	}
3482
3483	/**
3484	* Destroys a 3d context.
3485	*
3486	* @returns VBox status code.
3487	* @param pThis VGA device instance data.
3488	* @param pContext The context to destroy.
3489	* @param cid Context id
3490	*/
3491	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3492	{
3493	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3494	AssertReturn(pState, VERR_NO_MEMORY);
3495	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3496	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3497	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3498
3499	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3500
3501	/* Destroy all leftover pixel shaders. */
3502	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3503	{
3504	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3505	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3506	}
3507	if (pContext->paPixelShader)
3508	RTMemFree(pContext->paPixelShader);
3509
3510	/* Destroy all leftover vertex shaders. */
3511	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3512	{
3513	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3514	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3515	}
3516	if (pContext->paVertexShader)
3517	RTMemFree(pContext->paVertexShader);
3518
3519	if (pContext->state.paVertexShaderConst)
3520	RTMemFree(pContext->state.paVertexShaderConst);
3521	if (pContext->state.paPixelShaderConst)
3522	RTMemFree(pContext->state.paPixelShaderConst);
3523
3524	if (pContext->pShaderContext)
3525	{
3526	int rc = ShaderContextDestroy(pContext->pShaderContext);
3527	AssertRC(rc);
3528	}
3529
3530	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3531	{
3532	/* Unbind the object from the framebuffer target. */
3533	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3534	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3535	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3536	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3537
3538	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3539	{
3540	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3541	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3542	}
3543	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3544	{
3545	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3547	}
3548	}
3549
3550	vmsvga3dOcclusionQueryDelete(pState, pContext);
3551
3552	#ifdef RT_OS_WINDOWS
3553	wglMakeCurrent(pContext->hdc, NULL);
3554	wglDeleteContext(pContext->hglrc);
3555	ReleaseDC(pContext->hwnd, pContext->hdc);
3556
3557	/* Destroy the window we've created. */
3558	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3559	AssertRC(rc);
3560	#elif defined(RT_OS_DARWIN)
3561	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3562	#elif defined(RT_OS_LINUX)
3563	glXMakeCurrent(pState->display, None, NULL);
3564	glXDestroyContext(pState->display, pContext->glxContext);
3565	XDestroyWindow(pState->display, pContext->window);
3566	#endif
3567
3568	memset(pContext, 0, sizeof(*pContext));
3569	pContext->id = SVGA3D_INVALID_ID;
3570
3571	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3572	return VINF_SUCCESS;
3573	}
3574
3575	/**
3576	* Destroy an existing 3d context
3577	*
3578	* @returns VBox status code.
3579	* @param pThis VGA device instance data.
3580	* @param cid Context id
3581	*/
3582	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3583	{
3584	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3585	AssertReturn(pState, VERR_WRONG_ORDER);
3586
3587	/*
3588	* Resolve the context and hand it to the common worker function.
3589	*/
3590	if ( cid < pState->cContexts
3591	&& pState->papContexts[cid]->id == cid)
3592	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3593
3594	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3595	return VINF_SUCCESS;
3596	}
3597
3598	/**
3599	* Worker for vmsvga3dChangeMode that resizes a context.
3600	*
3601	* @param pThis The VGA device instance data.
3602	* @param pState The VMSVGA3d state.
3603	* @param pContext The context.
3604	*/
3605	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3606	{
3607	#ifdef RT_OS_WINDOWS
3608	/* Resize the window. */
3609	CREATESTRUCT cs;
3610	RT_ZERO(cs);
3611	cs.cx = pThis->svga.uWidth;
3612	cs.cy = pThis->svga.uHeight;
3613	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3614	AssertRC(rc);
3615
3616	#elif defined(RT_OS_DARWIN)
3617	RT_NOREF(pState);
3618	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3619
3620	#elif defined(RT_OS_LINUX)
3621	XWindowChanges wc;
3622	wc.width = pThis->svga.uWidth;
3623	wc.height = pThis->svga.uHeight;
3624	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3625	#endif
3626	}
3627
3628	/* Handle resize */
3629	int vmsvga3dChangeMode(PVGASTATE pThis)
3630	{
3631	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3632	AssertReturn(pState, VERR_NO_MEMORY);
3633
3634	/* Resize the shared context too. */
3635	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3636	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3637
3638	/* Resize all active contexts. */
3639	for (uint32_t i = 0; i < pState->cContexts; i++)
3640	{
3641	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3642	if (pContext->id != SVGA3D_INVALID_ID)
3643	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3644	}
3645
3646	return VINF_SUCCESS;
3647	}
3648
3649
3650	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3651	{
3652	PVMSVGA3DCONTEXT pContext;
3653	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3654	AssertReturn(pState, VERR_NO_MEMORY);
3655	bool fModelViewChanged = false;
3656
3657	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3658
3659	if ( cid >= pState->cContexts
3660	\|\| pState->papContexts[cid]->id != cid)
3661	{
3662	Log(("vmsvga3dSetTransform invalid context id!\n"));
3663	return VERR_INVALID_PARAMETER;
3664	}
3665	pContext = pState->papContexts[cid];
3666	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3667
3668	/* Save this matrix for vm state save/restore. */
3669	pContext->state.aTransformState[type].fValid = true;
3670	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3671	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3672
3673	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)));
3674	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)));
3675	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)));
3676	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)));
3677
3678	switch (type)
3679	{
3680	case SVGA3D_TRANSFORM_VIEW:
3681	/* View * World = Model View */
3682	glMatrixMode(GL_MODELVIEW);
3683	glLoadMatrixf(matrix);
3684	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3685	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3686	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3687	fModelViewChanged = true;
3688	break;
3689
3690	case SVGA3D_TRANSFORM_PROJECTION:
3691	{
3692	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3693	AssertRCReturn(rc, rc);
3694	break;
3695	}
3696
3697	case SVGA3D_TRANSFORM_TEXTURE0:
3698	glMatrixMode(GL_TEXTURE);
3699	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3700	glLoadMatrixf(matrix);
3701	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3702	break;
3703
3704	case SVGA3D_TRANSFORM_TEXTURE1:
3705	case SVGA3D_TRANSFORM_TEXTURE2:
3706	case SVGA3D_TRANSFORM_TEXTURE3:
3707	case SVGA3D_TRANSFORM_TEXTURE4:
3708	case SVGA3D_TRANSFORM_TEXTURE5:
3709	case SVGA3D_TRANSFORM_TEXTURE6:
3710	case SVGA3D_TRANSFORM_TEXTURE7:
3711	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3712	return VERR_INVALID_PARAMETER;
3713
3714	case SVGA3D_TRANSFORM_WORLD:
3715	/* View * World = Model View */
3716	glMatrixMode(GL_MODELVIEW);
3717	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3718	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3719	else
3720	glLoadIdentity();
3721	glMultMatrixf(matrix);
3722	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3723	fModelViewChanged = true;
3724	break;
3725
3726	case SVGA3D_TRANSFORM_WORLD1:
3727	case SVGA3D_TRANSFORM_WORLD2:
3728	case SVGA3D_TRANSFORM_WORLD3:
3729	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3730	return VERR_INVALID_PARAMETER;
3731
3732	default:
3733	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3734	return VERR_INVALID_PARAMETER;
3735	}
3736
3737	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3738	if (fModelViewChanged)
3739	{
3740	/* Reprogram the clip planes. */
3741	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3742	{
3743	if (pContext->state.aClipPlane[j].fValid == true)
3744	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3745	}
3746
3747	/* Reprogram the light data. */
3748	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3749	{
3750	if (pContext->state.aLightData[j].fValidData == true)
3751	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3752	}
3753	}
3754
3755	return VINF_SUCCESS;
3756	}
3757
3758	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3759	{
3760	PVMSVGA3DCONTEXT pContext;
3761	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3762	AssertReturn(pState, VERR_NO_MEMORY);
3763
3764	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3765
3766	if ( cid >= pState->cContexts
3767	\|\| pState->papContexts[cid]->id != cid)
3768	{
3769	Log(("vmsvga3dSetZRange invalid context id!\n"));
3770	return VERR_INVALID_PARAMETER;
3771	}
3772	pContext = pState->papContexts[cid];
3773	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3774
3775	pContext->state.zRange = zRange;
3776	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3777
3778	if (zRange.min < -1.0)
3779	zRange.min = -1.0;
3780	if (zRange.max > 1.0)
3781	zRange.max = 1.0;
3782
3783	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3785	return VINF_SUCCESS;
3786	}
3787
3788	/**
3789	* Convert SVGA blend op value to its OpenGL equivalent
3790	*/
3791	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3792	{
3793	switch (blendOp)
3794	{
3795	case SVGA3D_BLENDOP_ZERO:
3796	return GL_ZERO;
3797	case SVGA3D_BLENDOP_ONE:
3798	return GL_ONE;
3799	case SVGA3D_BLENDOP_SRCCOLOR:
3800	return GL_SRC_COLOR;
3801	case SVGA3D_BLENDOP_INVSRCCOLOR:
3802	return GL_ONE_MINUS_SRC_COLOR;
3803	case SVGA3D_BLENDOP_SRCALPHA:
3804	return GL_SRC_ALPHA;
3805	case SVGA3D_BLENDOP_INVSRCALPHA:
3806	return GL_ONE_MINUS_SRC_ALPHA;
3807	case SVGA3D_BLENDOP_DESTALPHA:
3808	return GL_DST_ALPHA;
3809	case SVGA3D_BLENDOP_INVDESTALPHA:
3810	return GL_ONE_MINUS_DST_ALPHA;
3811	case SVGA3D_BLENDOP_DESTCOLOR:
3812	return GL_DST_COLOR;
3813	case SVGA3D_BLENDOP_INVDESTCOLOR:
3814	return GL_ONE_MINUS_DST_COLOR;
3815	case SVGA3D_BLENDOP_SRCALPHASAT:
3816	return GL_SRC_ALPHA_SATURATE;
3817	case SVGA3D_BLENDOP_BLENDFACTOR:
3818	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3819	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3820	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3821	default:
3822	AssertFailed();
3823	return GL_ONE;
3824	}
3825	}
3826
3827	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3828	{
3829	switch (blendEq)
3830	{
3831	case SVGA3D_BLENDEQ_ADD:
3832	return GL_FUNC_ADD;
3833	case SVGA3D_BLENDEQ_SUBTRACT:
3834	return GL_FUNC_SUBTRACT;
3835	case SVGA3D_BLENDEQ_REVSUBTRACT:
3836	return GL_FUNC_REVERSE_SUBTRACT;
3837	case SVGA3D_BLENDEQ_MINIMUM:
3838	return GL_MIN;
3839	case SVGA3D_BLENDEQ_MAXIMUM:
3840	return GL_MAX;
3841	default:
3842	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3843	return GL_FUNC_ADD;
3844	}
3845	}
3846
3847	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3848	{
3849	switch (cmpFunc)
3850	{
3851	case SVGA3D_CMP_NEVER:
3852	return GL_NEVER;
3853	case SVGA3D_CMP_LESS:
3854	return GL_LESS;
3855	case SVGA3D_CMP_EQUAL:
3856	return GL_EQUAL;
3857	case SVGA3D_CMP_LESSEQUAL:
3858	return GL_LEQUAL;
3859	case SVGA3D_CMP_GREATER:
3860	return GL_GREATER;
3861	case SVGA3D_CMP_NOTEQUAL:
3862	return GL_NOTEQUAL;
3863	case SVGA3D_CMP_GREATEREQUAL:
3864	return GL_GEQUAL;
3865	case SVGA3D_CMP_ALWAYS:
3866	return GL_ALWAYS;
3867	default:
3868	AssertFailed();
3869	return GL_LESS;
3870	}
3871	}
3872
3873	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3874	{
3875	switch (stencilOp)
3876	{
3877	case SVGA3D_STENCILOP_KEEP:
3878	return GL_KEEP;
3879	case SVGA3D_STENCILOP_ZERO:
3880	return GL_ZERO;
3881	case SVGA3D_STENCILOP_REPLACE:
3882	return GL_REPLACE;
3883	case SVGA3D_STENCILOP_INCRSAT:
3884	return GL_INCR_WRAP;
3885	case SVGA3D_STENCILOP_DECRSAT:
3886	return GL_DECR_WRAP;
3887	case SVGA3D_STENCILOP_INVERT:
3888	return GL_INVERT;
3889	case SVGA3D_STENCILOP_INCR:
3890	return GL_INCR;
3891	case SVGA3D_STENCILOP_DECR:
3892	return GL_DECR;
3893	default:
3894	AssertFailed();
3895	return GL_KEEP;
3896	}
3897	}
3898
3899	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3900	{
3901	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3902	PVMSVGA3DCONTEXT pContext;
3903	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3904	AssertReturn(pState, VERR_NO_MEMORY);
3905
3906	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3907
3908	if ( cid >= pState->cContexts
3909	\|\| pState->papContexts[cid]->id != cid)
3910	{
3911	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3912	return VERR_INVALID_PARAMETER;
3913	}
3914	pContext = pState->papContexts[cid];
3915	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3916
3917	for (unsigned i = 0; i < cRenderStates; i++)
3918	{
3919	GLenum enableCap = ~(GLenum)0;
3920	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3921	/* Save the render state for vm state saving. */
3922	if (pRenderState[i].state < SVGA3D_RS_MAX)
3923	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3924
3925	switch (pRenderState[i].state)
3926	{
3927	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3928	enableCap = GL_DEPTH_TEST;
3929	val = pRenderState[i].uintValue;
3930	break;
3931
3932	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3933	glDepthMask(!!pRenderState[i].uintValue);
3934	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3935	break;
3936
3937	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3938	enableCap = GL_ALPHA_TEST;
3939	val = pRenderState[i].uintValue;
3940	break;
3941
3942	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3943	enableCap = GL_DITHER;
3944	val = pRenderState[i].uintValue;
3945	break;
3946
3947	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3948	enableCap = GL_FOG;
3949	val = pRenderState[i].uintValue;
3950	break;
3951
3952	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3953	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3954	break;
3955
3956	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3957	enableCap = GL_LIGHTING;
3958	val = pRenderState[i].uintValue;
3959	break;
3960
3961	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3962	/* not applicable */
3963	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3964	break;
3965
3966	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3967	enableCap = GL_POINT_SPRITE_ARB;
3968	val = pRenderState[i].uintValue;
3969	break;
3970
3971	case SVGA3D_RS_POINTSIZE: /* float */
3972	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3973	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3974	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3975	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3976	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3977
3978	glPointSize(pRenderState[i].floatValue);
3979	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3980	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3981	break;
3982
3983	case SVGA3D_RS_POINTSIZEMIN: /* float */
3984	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3985	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3986	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3987	break;
3988
3989	case SVGA3D_RS_POINTSIZEMAX: /* float */
3990	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3991	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3992	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3993	break;
3994
3995	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3996	case SVGA3D_RS_POINTSCALE_A: /* float */
3997	case SVGA3D_RS_POINTSCALE_B: /* float */
3998	case SVGA3D_RS_POINTSCALE_C: /* float */
3999	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4000	break;
4001
4002	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4003	{
4004	GLfloat color[4]; /* red, green, blue, alpha */
4005
4006	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4007
4008	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4009	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4010	break;
4011	}
4012
4013	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4014	{
4015	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4016	for (uint32_t j = 0; j <= 5; j++)
4017	{
4018	if (pRenderState[i].uintValue & RT_BIT(j))
4019	glEnable(GL_CLIP_PLANE0 + j);
4020	else
4021	glDisable(GL_CLIP_PLANE0 + j);
4022	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4023	}
4024	break;
4025	}
4026
4027	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4028	{
4029	GLfloat color[4]; /* red, green, blue, alpha */
4030
4031	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4032
4033	glFogfv(GL_FOG_COLOR, color);
4034	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4035	break;
4036	}
4037
4038	case SVGA3D_RS_FOGSTART: /* float */
4039	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4041	break;
4042
4043	case SVGA3D_RS_FOGEND: /* float */
4044	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4046	break;
4047
4048	case SVGA3D_RS_FOGDENSITY: /* float */
4049	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4051	break;
4052
4053	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4054	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4055	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4056	break;
4057
4058	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4059	{
4060	SVGA3dFogMode mode;
4061	mode.uintValue = pRenderState[i].uintValue;
4062
4063	enableCap = GL_FOG_MODE;
4064	switch (mode.s.function)
4065	{
4066	case SVGA3D_FOGFUNC_EXP:
4067	val = GL_EXP;
4068	break;
4069	case SVGA3D_FOGFUNC_EXP2:
4070	val = GL_EXP2;
4071	break;
4072	case SVGA3D_FOGFUNC_LINEAR:
4073	val = GL_LINEAR;
4074	break;
4075	default:
4076	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4077	break;
4078	}
4079
4080	/** @todo how to switch between vertex and pixel fog modes??? */
4081	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4082	#if 0
4083	/* The fog type determines the render state. */
4084	switch (mode.s.type)
4085	{
4086	case SVGA3D_FOGTYPE_VERTEX:
4087	renderState = D3DRS_FOGVERTEXMODE;
4088	break;
4089	case SVGA3D_FOGTYPE_PIXEL:
4090	renderState = D3DRS_FOGTABLEMODE;
4091	break;
4092	default:
4093	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4094	break;
4095	}
4096	#endif
4097
4098	/* Set the fog base to depth or range. */
4099	switch (mode.s.base)
4100	{
4101	case SVGA3D_FOGBASE_DEPTHBASED:
4102	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4104	break;
4105	case SVGA3D_FOGBASE_RANGEBASED:
4106	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4107	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4108	break;
4109	default:
4110	/* ignore */
4111	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4112	break;
4113	}
4114	break;
4115	}
4116
4117	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4118	{
4119	SVGA3dFillMode mode;
4120
4121	mode.uintValue = pRenderState[i].uintValue;
4122
4123	switch (mode.s.mode)
4124	{
4125	case SVGA3D_FILLMODE_POINT:
4126	val = GL_POINT;
4127	break;
4128	case SVGA3D_FILLMODE_LINE:
4129	val = GL_LINE;
4130	break;
4131	case SVGA3D_FILLMODE_FILL:
4132	val = GL_FILL;
4133	break;
4134	default:
4135	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4136	break;
4137	}
4138	/* @note only front and back faces */
4139	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4140	glPolygonMode(GL_FRONT_AND_BACK, val);
4141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4142	break;
4143	}
4144
4145	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4146	switch (pRenderState[i].uintValue)
4147	{
4148	case SVGA3D_SHADEMODE_FLAT:
4149	val = GL_FLAT;
4150	break;
4151
4152	case SVGA3D_SHADEMODE_SMOOTH:
4153	val = GL_SMOOTH;
4154	break;
4155
4156	default:
4157	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4158	break;
4159	}
4160
4161	glShadeModel(val);
4162	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4163	break;
4164
4165	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4166	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4167	/** @todo */
4168	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4169	/*
4170	renderState = D3DRS_LINEPATTERN;
4171	val = pRenderState[i].uintValue;
4172	*/
4173	break;
4174
4175	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4176	enableCap = GL_LINE_SMOOTH;
4177	val = pRenderState[i].uintValue;
4178	break;
4179
4180	case SVGA3D_RS_LINEWIDTH: /* float */
4181	glLineWidth(pRenderState[i].floatValue);
4182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4183	break;
4184
4185	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4186	{
4187	/* Refresh the blending state based on the new enable setting. */
4188	SVGA3dRenderState renderstate[2];
4189
4190	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4191	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4192	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4193	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4194
4195	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4196	AssertRCReturn(rc, rc);
4197
4198	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4199	continue; /* ignore if blend is already enabled */
4200	} RT_FALL_THRU();
4201
4202	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4203	enableCap = GL_BLEND;
4204	val = pRenderState[i].uintValue;
4205	break;
4206
4207	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4208	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4209	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4210	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4211	{
4212	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4213	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4214
4215	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4216	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4217	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4218	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4219	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4221	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4222	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4223
4224	switch (pRenderState[i].state)
4225	{
4226	case SVGA3D_RS_SRCBLEND:
4227	srcRGB = blendop;
4228	break;
4229	case SVGA3D_RS_DSTBLEND:
4230	dstRGB = blendop;
4231	break;
4232	case SVGA3D_RS_SRCBLENDALPHA:
4233	srcAlpha = blendop;
4234	break;
4235	case SVGA3D_RS_DSTBLENDALPHA:
4236	dstAlpha = blendop;
4237	break;
4238	default:
4239	/* not possible; shut up gcc */
4240	AssertFailed();
4241	break;
4242	}
4243
4244	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4245	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4246	else
4247	glBlendFunc(srcRGB, dstRGB);
4248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4249	break;
4250	}
4251
4252	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4253	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4254	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4255	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4256	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4257	else
4258	{
4259	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4260	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4261	#else
4262	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4263	#endif
4264	}
4265	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4266	break;
4267
4268	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4269	{
4270	GLfloat red, green, blue, alpha;
4271
4272	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4273
4274	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4275	glBlendColor(red, green, blue, alpha);
4276	#else
4277	pState->ext.glBlendColor(red, green, blue, alpha);
4278	#endif
4279	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4280	break;
4281	}
4282
4283	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4284	{
4285	GLenum mode = GL_BACK; /* default for OpenGL */
4286
4287	switch (pRenderState[i].uintValue)
4288	{
4289	case SVGA3D_FACE_NONE:
4290	break;
4291	case SVGA3D_FACE_FRONT:
4292	mode = GL_FRONT;
4293	break;
4294	case SVGA3D_FACE_BACK:
4295	mode = GL_BACK;
4296	break;
4297	case SVGA3D_FACE_FRONT_BACK:
4298	mode = GL_FRONT_AND_BACK;
4299	break;
4300	default:
4301	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4302	break;
4303	}
4304	enableCap = GL_CULL_FACE;
4305	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4306	{
4307	glCullFace(mode);
4308	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4309	val = 1;
4310	}
4311	else
4312	val = 0;
4313	break;
4314	}
4315
4316	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4317	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4318	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4319	break;
4320
4321	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4322	{
4323	GLclampf ref;
4324
4325	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4326	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4327	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4328	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4329	break;
4330	}
4331
4332	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4333	{
4334	GLint func;
4335
4336	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4337	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4338	glAlphaFunc(func, pRenderState[i].floatValue);
4339	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4340	break;
4341	}
4342
4343	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4344	enableCap = GL_STENCIL_TEST;
4345	val = pRenderState[i].uintValue;
4346	break;
4347
4348	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4349	case SVGA3D_RS_STENCILREF: /* uint32_t */
4350	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4351	{
4352	GLint func, ref;
4353	GLuint mask;
4354
4355	glGetIntegerv(GL_STENCIL_FUNC, &func);
4356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4357	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4358	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4359	glGetIntegerv(GL_STENCIL_REF, &ref);
4360	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4361
4362	switch (pRenderState[i].state)
4363	{
4364	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4365	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4366	break;
4367
4368	case SVGA3D_RS_STENCILREF: /* uint32_t */
4369	ref = pRenderState[i].uintValue;
4370	break;
4371
4372	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4373	mask = pRenderState[i].uintValue;
4374	break;
4375
4376	default:
4377	/* not possible; shut up gcc */
4378	AssertFailed();
4379	break;
4380	}
4381
4382	glStencilFunc(func, ref, mask);
4383	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4384	break;
4385	}
4386
4387	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4388	glStencilMask(pRenderState[i].uintValue);
4389	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4390	break;
4391
4392	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4393	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4394	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4395	{
4396	GLint sfail, dpfail, dppass;
4397	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4398
4399	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4400	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4401	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4403	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4404	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4405
4406	switch (pRenderState[i].state)
4407	{
4408	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4409	sfail = stencilop;
4410	break;
4411	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4412	dpfail = stencilop;
4413	break;
4414	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4415	dppass = stencilop;
4416	break;
4417	default:
4418	/* not possible; shut up gcc */
4419	AssertFailed();
4420	break;
4421	}
4422	glStencilOp(sfail, dpfail, dppass);
4423	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4424	break;
4425	}
4426
4427	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4428	/* @note GL_EXT_stencil_two_side required! */
4429	if (pState->ext.fEXT_stencil_two_side)
4430	{
4431	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4432	val = pRenderState[i].uintValue;
4433	}
4434	else
4435	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4436	break;
4437
4438	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4439	{
4440	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4441	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4442	*/
4443	GLint ref;
4444	GLuint mask;
4445
4446	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4447	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4448	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4450
4451	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4452	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4453	break;
4454	}
4455
4456	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4457	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4458	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4459	{
4460	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4461	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4462	*/
4463	GLint sfail, dpfail, dppass;
4464	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4465
4466	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4468	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4469	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4470	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4471	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4472
4473	switch (pRenderState[i].state)
4474	{
4475	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4476	sfail = stencilop;
4477	break;
4478	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4479	dpfail = stencilop;
4480	break;
4481	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4482	dppass = stencilop;
4483	break;
4484	default:
4485	/* not possible; shut up gcc */
4486	AssertFailed();
4487	break;
4488	}
4489	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4491	break;
4492	}
4493
4494	case SVGA3D_RS_ZBIAS: /* float */
4495	/** @todo unknown meaning; depth bias is not identical
4496	renderState = D3DRS_DEPTHBIAS;
4497	val = pRenderState[i].uintValue;
4498	*/
4499	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4500	break;
4501
4502	case SVGA3D_RS_DEPTHBIAS: /* float */
4503	{
4504	GLfloat factor;
4505
4506	/** @todo not sure if the d3d & ogl definitions are identical. */
4507
4508	/* Do not change the factor part. */
4509	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4510	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4511
4512	glPolygonOffset(factor, pRenderState[i].floatValue);
4513	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4514	break;
4515	}
4516
4517	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4518	{
4519	GLfloat units;
4520
4521	/** @todo not sure if the d3d & ogl definitions are identical. */
4522
4523	/* Do not change the factor part. */
4524	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4525	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4526
4527	glPolygonOffset(pRenderState[i].floatValue, units);
4528	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4529	break;
4530	}
4531
4532	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4533	{
4534	GLboolean red, green, blue, alpha;
4535	SVGA3dColorMask mask;
4536
4537	mask.uintValue = pRenderState[i].uintValue;
4538
4539	red = mask.s.red;
4540	green = mask.s.green;
4541	blue = mask.s.blue;
4542	alpha = mask.s.alpha;
4543
4544	glColorMask(red, green, blue, alpha);
4545	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4546	break;
4547	}
4548
4549	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4550	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4551	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4552	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4553	break;
4554
4555	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4556	enableCap = GL_SCISSOR_TEST;
4557	val = pRenderState[i].uintValue;
4558	break;
4559
4560	#if 0
4561	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4562	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4563	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4564	val = pRenderState[i].uintValue;
4565	break;
4566
4567	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4568	renderState = D3DRS_SPECULARMATERIALSOURCE;
4569	val = pRenderState[i].uintValue;
4570	break;
4571
4572	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4573	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4574	val = pRenderState[i].uintValue;
4575	break;
4576
4577	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4578	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4579	val = pRenderState[i].uintValue;
4580	break;
4581	#endif
4582
4583	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4584	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4585	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4586	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4587	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4588	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4589	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4590	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4591	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4592	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4593	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4594	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4595	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4596	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4597	break;
4598
4599	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4600	case SVGA3D_RS_TWEENFACTOR: /* float */
4601	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4602	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4603	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4604	break;
4605
4606	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4607	enableCap = GL_MULTISAMPLE;
4608	val = pRenderState[i].uintValue;
4609	break;
4610
4611	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4612	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4613	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4614	break;
4615
4616	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4617	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4618	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4619	/*
4620	renderState = D3DRS_COORDINATETYPE;
4621	val = pRenderState[i].uintValue;
4622	*/
4623	break;
4624
4625	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4626	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4627	/* Invert the selected mode because of y-inversion (?) */
4628	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4629	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4630	break;
4631
4632	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4633	//AssertFailed();
4634	/*
4635	D3DRS_SRGBWRITEENABLE ??
4636	renderState = D3DRS_OUTPUTGAMMA;
4637	val = pRenderState[i].uintValue;
4638	*/
4639	break;
4640
4641	#if 0
4642
4643	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4644	//AssertFailed();
4645	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4646	val = pRenderState[i].uintValue;
4647	break;
4648
4649	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4650	renderState = D3DRS_TEXTUREFACTOR;
4651	val = pRenderState[i].uintValue;
4652	break;
4653
4654	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4655	renderState = D3DRS_LOCALVIEWER;
4656	val = pRenderState[i].uintValue;
4657	break;
4658
4659	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4660	AssertFailed();
4661	/*
4662	renderState = D3DRS_ZVISIBLE;
4663	val = pRenderState[i].uintValue;
4664	*/
4665	break;
4666
4667	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4668	renderState = D3DRS_CLIPPING;
4669	val = pRenderState[i].uintValue;
4670	break;
4671
4672	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4673	glTexParameter GL_TEXTURE_WRAP_S
4674	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4675	renderState = D3DRS_WRAP0;
4676	val = pRenderState[i].uintValue;
4677	break;
4678
4679	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4680	glTexParameter GL_TEXTURE_WRAP_T
4681	renderState = D3DRS_WRAP1;
4682	val = pRenderState[i].uintValue;
4683	break;
4684
4685	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4686	glTexParameter GL_TEXTURE_WRAP_R
4687	renderState = D3DRS_WRAP2;
4688	val = pRenderState[i].uintValue;
4689	break;
4690
4691
4692	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4693	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4694	val = pRenderState[i].uintValue;
4695	break;
4696
4697
4698	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4699	renderState = D3DRS_BLENDOPALPHA;
4700	val = pRenderState[i].uintValue;
4701	break;
4702
4703	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4704	AssertFailed();
4705	/*
4706	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4707	val = pRenderState[i].uintValue;
4708	*/
4709	break;
4710
4711	#endif
4712	default:
4713	AssertFailed();
4714	break;
4715	}
4716
4717	if (enableCap != ~(GLenum)0)
4718	{
4719	if (val)
4720	glEnable(enableCap);
4721	else
4722	glDisable(enableCap);
4723	}
4724	}
4725
4726	return VINF_SUCCESS;
4727	}
4728
4729	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4730	{
4731	PVMSVGA3DCONTEXT pContext;
4732	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4733	PVMSVGA3DSURFACE pRenderTarget;
4734
4735	AssertReturn(pState, VERR_NO_MEMORY);
4736	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4737	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4738
4739	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4740
4741	if ( cid >= pState->cContexts
4742	\|\| pState->papContexts[cid]->id != cid)
4743	{
4744	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4745	return VERR_INVALID_PARAMETER;
4746	}
4747	pContext = pState->papContexts[cid];
4748	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4749
4750	/* Save for vm state save/restore. */
4751	pContext->state.aRenderTargets[type] = target.sid;
4752
4753	if (target.sid == SVGA3D_INVALID_ID)
4754	{
4755	/* Disable render target. */
4756	switch (type)
4757	{
4758	case SVGA3D_RT_DEPTH:
4759	case SVGA3D_RT_STENCIL:
4760	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4761	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4762	break;
4763
4764	case SVGA3D_RT_COLOR0:
4765	case SVGA3D_RT_COLOR1:
4766	case SVGA3D_RT_COLOR2:
4767	case SVGA3D_RT_COLOR3:
4768	case SVGA3D_RT_COLOR4:
4769	case SVGA3D_RT_COLOR5:
4770	case SVGA3D_RT_COLOR6:
4771	case SVGA3D_RT_COLOR7:
4772	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4773	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4774	break;
4775
4776	default:
4777	AssertFailedReturn(VERR_INVALID_PARAMETER);
4778	}
4779	return VINF_SUCCESS;
4780	}
4781
4782	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4783	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4784	pRenderTarget = pState->papSurfaces[target.sid];
4785
4786	switch (type)
4787	{
4788	case SVGA3D_RT_DEPTH:
4789	case SVGA3D_RT_STENCIL:
4790	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4791	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4792	{
4793	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4794	pContext = &pState->SharedCtx;
4795	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4796
4797	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4798	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4799
4800	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4801	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4802
4803	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4804	pRenderTarget->internalFormatGL,
4805	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4806	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4807	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4808
4809	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4810	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4811
4812	pContext = pState->papContexts[cid];
4813	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4814	pRenderTarget->idWeakContextAssociation = cid;
4815	}
4816
4817	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4818	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4819	Assert(!pRenderTarget->fDirty);
4820	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4821
4822	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4823
4824	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4825	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4826	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828	break;
4829
4830	case SVGA3D_RT_COLOR0:
4831	case SVGA3D_RT_COLOR1:
4832	case SVGA3D_RT_COLOR2:
4833	case SVGA3D_RT_COLOR3:
4834	case SVGA3D_RT_COLOR4:
4835	case SVGA3D_RT_COLOR5:
4836	case SVGA3D_RT_COLOR6:
4837	case SVGA3D_RT_COLOR7:
4838	{
4839	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4840	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4841	{
4842	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));
4843	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4844	AssertRCReturn(rc, rc);
4845	}
4846
4847	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4848	Assert(!pRenderTarget->fDirty);
4849
4850	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4851
4852	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4853	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4854
4855	#ifdef DEBUG
4856	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4857	if (status != GL_FRAMEBUFFER_COMPLETE)
4858	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4859	#endif
4860	/** @todo use glDrawBuffers too? */
4861	break;
4862	}
4863
4864	default:
4865	AssertFailedReturn(VERR_INVALID_PARAMETER);
4866	}
4867
4868	return VINF_SUCCESS;
4869	}
4870
4871	#if 0
4872	/**
4873	* Convert SVGA texture combiner value to its D3D equivalent
4874	*/
4875	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4876	{
4877	switch (value)
4878	{
4879	case SVGA3D_TC_DISABLE:
4880	return D3DTOP_DISABLE;
4881	case SVGA3D_TC_SELECTARG1:
4882	return D3DTOP_SELECTARG1;
4883	case SVGA3D_TC_SELECTARG2:
4884	return D3DTOP_SELECTARG2;
4885	case SVGA3D_TC_MODULATE:
4886	return D3DTOP_MODULATE;
4887	case SVGA3D_TC_ADD:
4888	return D3DTOP_ADD;
4889	case SVGA3D_TC_ADDSIGNED:
4890	return D3DTOP_ADDSIGNED;
4891	case SVGA3D_TC_SUBTRACT:
4892	return D3DTOP_SUBTRACT;
4893	case SVGA3D_TC_BLENDTEXTUREALPHA:
4894	return D3DTOP_BLENDTEXTUREALPHA;
4895	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4896	return D3DTOP_BLENDDIFFUSEALPHA;
4897	case SVGA3D_TC_BLENDCURRENTALPHA:
4898	return D3DTOP_BLENDCURRENTALPHA;
4899	case SVGA3D_TC_BLENDFACTORALPHA:
4900	return D3DTOP_BLENDFACTORALPHA;
4901	case SVGA3D_TC_MODULATE2X:
4902	return D3DTOP_MODULATE2X;
4903	case SVGA3D_TC_MODULATE4X:
4904	return D3DTOP_MODULATE4X;
4905	case SVGA3D_TC_DSDT:
4906	AssertFailed(); /** @todo ??? */
4907	return D3DTOP_DISABLE;
4908	case SVGA3D_TC_DOTPRODUCT3:
4909	return D3DTOP_DOTPRODUCT3;
4910	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4911	return D3DTOP_BLENDTEXTUREALPHAPM;
4912	case SVGA3D_TC_ADDSIGNED2X:
4913	return D3DTOP_ADDSIGNED2X;
4914	case SVGA3D_TC_ADDSMOOTH:
4915	return D3DTOP_ADDSMOOTH;
4916	case SVGA3D_TC_PREMODULATE:
4917	return D3DTOP_PREMODULATE;
4918	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4919	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4920	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4921	return D3DTOP_MODULATECOLOR_ADDALPHA;
4922	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4923	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4924	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4925	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4926	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4927	return D3DTOP_BUMPENVMAPLUMINANCE;
4928	case SVGA3D_TC_MULTIPLYADD:
4929	return D3DTOP_MULTIPLYADD;
4930	case SVGA3D_TC_LERP:
4931	return D3DTOP_LERP;
4932	default:
4933	AssertFailed();
4934	return D3DTOP_DISABLE;
4935	}
4936	}
4937
4938	/**
4939	* Convert SVGA texture arg data value to its D3D equivalent
4940	*/
4941	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4942	{
4943	switch (value)
4944	{
4945	case SVGA3D_TA_CONSTANT:
4946	return D3DTA_CONSTANT;
4947	case SVGA3D_TA_PREVIOUS:
4948	return D3DTA_CURRENT; /* current = previous */
4949	case SVGA3D_TA_DIFFUSE:
4950	return D3DTA_DIFFUSE;
4951	case SVGA3D_TA_TEXTURE:
4952	return D3DTA_TEXTURE;
4953	case SVGA3D_TA_SPECULAR:
4954	return D3DTA_SPECULAR;
4955	default:
4956	AssertFailed();
4957	return 0;
4958	}
4959	}
4960
4961	/**
4962	* Convert SVGA texture transform flag value to its D3D equivalent
4963	*/
4964	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4965	{
4966	switch (value)
4967	{
4968	case SVGA3D_TEX_TRANSFORM_OFF:
4969	return D3DTTFF_DISABLE;
4970	case SVGA3D_TEX_TRANSFORM_S:
4971	return D3DTTFF_COUNT1; /** @todo correct? */
4972	case SVGA3D_TEX_TRANSFORM_T:
4973	return D3DTTFF_COUNT2; /** @todo correct? */
4974	case SVGA3D_TEX_TRANSFORM_R:
4975	return D3DTTFF_COUNT3; /** @todo correct? */
4976	case SVGA3D_TEX_TRANSFORM_Q:
4977	return D3DTTFF_COUNT4; /** @todo correct? */
4978	case SVGA3D_TEX_PROJECTED:
4979	return D3DTTFF_PROJECTED;
4980	default:
4981	AssertFailed();
4982	return 0;
4983	}
4984	}
4985	#endif
4986
4987	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4988	{
4989	switch (value)
4990	{
4991	case SVGA3D_TEX_ADDRESS_WRAP:
4992	return GL_REPEAT;
4993	case SVGA3D_TEX_ADDRESS_MIRROR:
4994	return GL_MIRRORED_REPEAT;
4995	case SVGA3D_TEX_ADDRESS_CLAMP:
4996	return GL_CLAMP_TO_EDGE;
4997	case SVGA3D_TEX_ADDRESS_BORDER:
4998	return GL_CLAMP_TO_BORDER;
4999	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5000	AssertFailed();
5001	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5002
5003	case SVGA3D_TEX_ADDRESS_EDGE:
5004	case SVGA3D_TEX_ADDRESS_INVALID:
5005	default:
5006	AssertFailed();
5007	return GL_REPEAT; /* default */
5008	}
5009	}
5010
5011	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5012	{
5013	switch (value)
5014	{
5015	case SVGA3D_TEX_FILTER_NONE:
5016	case SVGA3D_TEX_FILTER_LINEAR:
5017	return GL_LINEAR;
5018	case SVGA3D_TEX_FILTER_NEAREST:
5019	return GL_NEAREST;
5020	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5021	/** @todo */
5022	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5023	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5024	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5025	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5026	default:
5027	AssertFailed();
5028	return GL_LINEAR; /* default */
5029	}
5030	}
5031
5032	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5033	{
5034	/* flip the red and blue bytes */
5035	uint8_t blue = value & 0xff;
5036	uint8_t red = (value >> 16) & 0xff;
5037	return (value & 0xff00ff00) \| red \| (blue << 16);
5038	}
5039
5040	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5041	{
5042	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5043	GLenum currentStage = ~(GLenum)0;
5044	PVMSVGA3DCONTEXT pContext;
5045	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5046	AssertReturn(pState, VERR_NO_MEMORY);
5047
5048	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5049
5050	if ( cid >= pState->cContexts
5051	\|\| pState->papContexts[cid]->id != cid)
5052	{
5053	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5054	return VERR_INVALID_PARAMETER;
5055	}
5056	pContext = pState->papContexts[cid];
5057	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5058
5059	for (unsigned i = 0; i < cTextureStates; i++)
5060	{
5061	GLenum textureType = ~(GLenum)0;
5062	#if 0
5063	GLenum samplerType = ~(GLenum)0;
5064	#endif
5065
5066	Log(("vmsvga3dSetTextureState: cid=%x stage=%d type=%s (%x) val=%x\n", cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5067	/* Record the texture state for vm state saving. */
5068	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5069	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5070	{
5071	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5072	}
5073
5074	/* Active the right texture unit for subsequent texture state changes. */
5075	if (pTextureState[i].stage != currentStage \|\| i == 0)
5076	{
5077	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5078	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5079	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5080	{
5081	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5083	currentStage = pTextureState[i].stage;
5084	}
5085	else
5086	{
5087	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5088	continue;
5089	}
5090	}
5091
5092	switch (pTextureState[i].name)
5093	{
5094	case SVGA3D_TS_BUMPENVMAT00: /* float */
5095	case SVGA3D_TS_BUMPENVMAT01: /* float */
5096	case SVGA3D_TS_BUMPENVMAT10: /* float */
5097	case SVGA3D_TS_BUMPENVMAT11: /* float */
5098	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5099	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5100	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5101	break;
5102
5103	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5104	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5105	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5106	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5107	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5108	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5109	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5110	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5111	/** @todo not used by MesaGL */
5112	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5113	break;
5114	#if 0
5115
5116	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5117	textureType = D3DTSS_TEXCOORDINDEX;
5118	val = pTextureState[i].value;
5119	break;
5120
5121	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5122	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5123	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5124	break;
5125	#endif
5126
5127	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5128	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5129	{
5130	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5131	currentStage, pTextureState[i].value, pContext->aSidActiveTextures[currentStage]));
5132
5133	pContext->aSidActiveTextures[currentStage] = SVGA3D_INVALID_ID;
5134	/* Unselect the currently associated texture. */
5135	glBindTexture(GL_TEXTURE_2D, 0);
5136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5137	/* Necessary for the fixed pipeline. */
5138	glDisable(GL_TEXTURE_2D);
5139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5140	}
5141	else
5142	{
5143	uint32_t sid = pTextureState[i].value;
5144
5145	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5146	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5147
5148	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5149
5150	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5151	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].mipmapSize.width,
5152	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5153
5154	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5155	{
5156	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5157	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5158	AssertRCReturn(rc, rc);
5159	}
5160
5161	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5162	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5163
5164	/* Necessary for the fixed pipeline. */
5165	glEnable(GL_TEXTURE_2D);
5166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5167
5168	if (pContext->aSidActiveTextures[currentStage] != sid)
5169	{
5170	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5171	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5172	{
5173	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5174	{
5175	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5176
5177	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5178	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5179	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5180	}
5181	}
5182	}
5183	pContext->aSidActiveTextures[currentStage] = sid;
5184	}
5185	/* Finished; continue with the next one. */
5186	continue;
5187
5188	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5189	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5190	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5191	break;
5192
5193	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5194	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5195	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5196	break;
5197
5198	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5199	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5200	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5201	break;
5202
5203	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5204	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5205	{
5206	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5207	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5208
5209	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5210	textureType = GL_TEXTURE_MIN_FILTER;
5211	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5212	{
5213	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5214	{
5215	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5216	val = GL_NEAREST_MIPMAP_LINEAR;
5217	else
5218	val = GL_NEAREST_MIPMAP_NEAREST;
5219	}
5220	else
5221	{
5222	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5223	val = GL_LINEAR_MIPMAP_LINEAR;
5224	else
5225	val = GL_LINEAR_MIPMAP_NEAREST;
5226	}
5227	}
5228	else
5229	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5230	break;
5231	}
5232
5233	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5234	textureType = GL_TEXTURE_MAG_FILTER;
5235	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5236	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5237	break;
5238
5239	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5240	{
5241	GLfloat color[4]; /* red, green, blue, alpha */
5242
5243	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5244
5245	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5246	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5247	break;
5248	}
5249
5250	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5251	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); / Identical; default 0.0 identical too */
5252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5253	break;
5254
5255	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5256	textureType = GL_TEXTURE_BASE_LEVEL;
5257	val = pTextureState[i].value;
5258	break;
5259
5260	#if 0
5261	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5262	samplerType = D3DSAMP_MAXANISOTROPY;
5263	val = pTextureState[i].value; /* Identical?? */
5264	break;
5265
5266	case SVGA3D_TS_GAMMA: /* float */
5267	samplerType = D3DSAMP_SRGBTEXTURE;
5268	/* Boolean in D3D */
5269	if (pTextureState[i].floatValue == 1.0f)
5270	val = FALSE;
5271	else
5272	val = TRUE;
5273	break;
5274	#endif
5275	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5276	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5277	AssertFailed();
5278	break;
5279
5280	default:
5281	//AssertFailed();
5282	break;
5283	}
5284
5285	if (textureType != ~(GLenum)0)
5286	{
5287	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5288	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5289	}
5290	}
5291
5292	return VINF_SUCCESS;
5293	}
5294
5295	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5296	{
5297	PVMSVGA3DCONTEXT pContext;
5298	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5299	AssertReturn(pState, VERR_NO_MEMORY);
5300	GLenum oglFace;
5301
5302	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5303
5304	if ( cid >= pState->cContexts
5305	\|\| pState->papContexts[cid]->id != cid)
5306	{
5307	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5308	return VERR_INVALID_PARAMETER;
5309	}
5310	pContext = pState->papContexts[cid];
5311	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5312
5313	switch (face)
5314	{
5315	case SVGA3D_FACE_NONE:
5316	case SVGA3D_FACE_FRONT:
5317	oglFace = GL_FRONT;
5318	break;
5319
5320	case SVGA3D_FACE_BACK:
5321	oglFace = GL_BACK;
5322	break;
5323
5324	case SVGA3D_FACE_FRONT_BACK:
5325	oglFace = GL_FRONT_AND_BACK;
5326	break;
5327
5328	default:
5329	AssertFailedReturn(VERR_INVALID_PARAMETER);
5330	}
5331
5332	/* Save for vm state save/restore. */
5333	pContext->state.aMaterial[face].fValid = true;
5334	pContext->state.aMaterial[face].material = *pMaterial;
5335	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5336
5337	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5338	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5339	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5340	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5341	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5342	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5343
5344	return VINF_SUCCESS;
5345	}
5346
5347	/** @todo Move into separate library as we are using logic from Wine here. */
5348	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5349	{
5350	PVMSVGA3DCONTEXT pContext;
5351	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5352	AssertReturn(pState, VERR_NO_MEMORY);
5353	float QuadAttenuation;
5354
5355	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5356
5357	if ( cid >= pState->cContexts
5358	\|\| pState->papContexts[cid]->id != cid)
5359	{
5360	Log(("vmsvga3dSetLightData invalid context id!\n"));
5361	return VERR_INVALID_PARAMETER;
5362	}
5363	pContext = pState->papContexts[cid];
5364	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5365
5366	/* Store for vm state save/restore */
5367	if (index < SVGA3D_MAX_LIGHTS)
5368	{
5369	pContext->state.aLightData[index].fValidData = true;
5370	pContext->state.aLightData[index].data = *pData;
5371	}
5372	else
5373	AssertFailed();
5374
5375	if ( pData->attenuation0 < 0.0f
5376	\|\| pData->attenuation1 < 0.0f
5377	\|\| pData->attenuation2 < 0.0f)
5378	{
5379	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5380	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5381	}
5382
5383	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5384	glMatrixMode(GL_MODELVIEW);
5385	glPushMatrix();
5386	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5387
5388	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5389	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5390	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5391
5392	if (pData->range * pData->range >= FLT_MIN)
5393	QuadAttenuation = 1.4f / (pData->range * pData->range);
5394	else
5395	QuadAttenuation = 0.0f;
5396
5397	switch (pData->type)
5398	{
5399	case SVGA3D_LIGHTTYPE_POINT:
5400	{
5401	GLfloat position[4];
5402
5403	position[0] = pData->position[0];
5404	position[1] = pData->position[1];
5405	position[2] = pData->position[2];
5406	position[3] = 1.0f;
5407
5408	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5409	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5410
5411	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5412	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5413
5414	/* Attenuation - Are these right? guessing... */
5415	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5416	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5417
5418	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5419	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5420
5421	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5422	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5423
5424	/** @todo range */
5425	break;
5426	}
5427
5428	case SVGA3D_LIGHTTYPE_SPOT1:
5429	{
5430	GLfloat exponent;
5431	GLfloat position[4];
5432	const GLfloat pi = 4.0f * atanf(1.0f);
5433
5434	position[0] = pData->position[0];
5435	position[1] = pData->position[1];
5436	position[2] = pData->position[2];
5437	position[3] = 1.0f;
5438
5439	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5440	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5441
5442	position[0] = pData->direction[0];
5443	position[1] = pData->direction[1];
5444	position[2] = pData->direction[2];
5445	position[3] = 1.0f;
5446
5447	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5448	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5449
5450	/*
5451	* opengl-ish and d3d-ish spot lights use too different models for the
5452	* light "intensity" as a function of the angle towards the main light direction,
5453	* so we only can approximate very roughly.
5454	* however spot lights are rather rarely used in games (if ever used at all).
5455	* furthermore if still used, probably nobody pays attention to such details.
5456	*/
5457	if (pData->falloff == 0)
5458	{
5459	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5460	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5461	* will always be 1.0 for both of them, and we don't have to care for the
5462	* rest of the rather complex calculation
5463	*/
5464	exponent = 0.0f;
5465	}
5466	else
5467	{
5468	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5469	if (rho < 0.0001f)
5470	rho = 0.0001f;
5471	exponent = -0.3f/log(cos(rho/2));
5472	}
5473	if (exponent > 128.0f)
5474	exponent = 128.0f;
5475
5476	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5477	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5478
5479	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5480	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5481
5482	/* Attenuation - Are these right? guessing... */
5483	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5484	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5485
5486	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5487	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5488
5489	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5490	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5491
5492	/** @todo range */
5493	break;
5494	}
5495
5496	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5497	{
5498	GLfloat position[4];
5499
5500	position[0] = -pData->direction[0];
5501	position[1] = -pData->direction[1];
5502	position[2] = -pData->direction[2];
5503	position[3] = 0.0f;
5504
5505	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5506	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5507
5508	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5509	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5510
5511	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5512	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5513	break;
5514	}
5515
5516	case SVGA3D_LIGHTTYPE_SPOT2:
5517	default:
5518	Log(("Unsupported light type!!\n"));
5519	return VERR_INVALID_PARAMETER;
5520	}
5521
5522	/* Restore the modelview matrix */
5523	glPopMatrix();
5524
5525	return VINF_SUCCESS;
5526	}
5527
5528	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5529	{
5530	PVMSVGA3DCONTEXT pContext;
5531	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5532	AssertReturn(pState, VERR_NO_MEMORY);
5533
5534	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5535
5536	if ( cid >= pState->cContexts
5537	\|\| pState->papContexts[cid]->id != cid)
5538	{
5539	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5540	return VERR_INVALID_PARAMETER;
5541	}
5542	pContext = pState->papContexts[cid];
5543	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5544
5545	/* Store for vm state save/restore */
5546	if (index < SVGA3D_MAX_LIGHTS)
5547	pContext->state.aLightData[index].fEnabled = !!enabled;
5548	else
5549	AssertFailed();
5550
5551	if (enabled)
5552	{
5553	/* Load the default settings if none have been set yet. */
5554	if (!pContext->state.aLightData[index].fValidData)
5555	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5556	glEnable(GL_LIGHT0 + index);
5557	}
5558	else
5559	glDisable(GL_LIGHT0 + index);
5560
5561	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5562	return VINF_SUCCESS;
5563	}
5564
5565	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5566	{
5567	PVMSVGA3DCONTEXT pContext;
5568	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5569	AssertReturn(pState, VERR_NO_MEMORY);
5570
5571	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5572
5573	if ( cid >= pState->cContexts
5574	\|\| pState->papContexts[cid]->id != cid)
5575	{
5576	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5577	return VERR_INVALID_PARAMETER;
5578	}
5579	pContext = pState->papContexts[cid];
5580	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5581
5582	/* Save for vm state save/restore. */
5583	pContext->state.RectViewPort = *pRect;
5584	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5585
5586	/** @todo y-inversion for partial viewport coordinates? */
5587	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5588	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5589
5590	/* Reset the projection matrix as that relies on the viewport setting. */
5591	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5592	{
5593	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5594	}
5595	else
5596	{
5597	float matrix[16];
5598
5599	/* identity matrix if no matrix set. */
5600	memset(matrix, 0, sizeof(matrix));
5601	matrix[0] = 1.0;
5602	matrix[5] = 1.0;
5603	matrix[10] = 1.0;
5604	matrix[15] = 1.0;
5605	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5606	}
5607
5608	return VINF_SUCCESS;
5609	}
5610
5611	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5612	{
5613	PVMSVGA3DCONTEXT pContext;
5614	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5615	AssertReturn(pState, VERR_NO_MEMORY);
5616	double oglPlane[4];
5617
5618	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)));
5619	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5620
5621	if ( cid >= pState->cContexts
5622	\|\| pState->papContexts[cid]->id != cid)
5623	{
5624	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5625	return VERR_INVALID_PARAMETER;
5626	}
5627	pContext = pState->papContexts[cid];
5628	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5629
5630	/* Store for vm state save/restore. */
5631	pContext->state.aClipPlane[index].fValid = true;
5632	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5633
5634	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5635	oglPlane[0] = (double)plane[0];
5636	oglPlane[1] = (double)plane[1];
5637	oglPlane[2] = (double)plane[2];
5638	oglPlane[3] = (double)plane[3];
5639
5640	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5641	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5642
5643	return VINF_SUCCESS;
5644	}
5645
5646	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5647	{
5648	PVMSVGA3DCONTEXT pContext;
5649	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5650	AssertReturn(pState, VERR_NO_MEMORY);
5651
5652	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5653
5654	if ( cid >= pState->cContexts
5655	\|\| pState->papContexts[cid]->id != cid)
5656	{
5657	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5658	return VERR_INVALID_PARAMETER;
5659	}
5660	pContext = pState->papContexts[cid];
5661	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5662
5663	/* Store for vm state save/restore. */
5664	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5665	pContext->state.RectScissor = *pRect;
5666
5667	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5668	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5669
5670	return VINF_SUCCESS;
5671	}
5672
5673	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5674	{
5675	/* Convert byte color components to float (0-1.0) */
5676	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5677	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5678	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5679	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5680	}
5681
5682	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5683	uint32_t cRects, SVGA3dRect *pRect)
5684	{
5685	GLbitfield mask = 0;
5686	PVMSVGA3DCONTEXT pContext;
5687	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5688	AssertReturn(pState, VERR_NO_MEMORY);
5689	GLboolean fDepthWriteEnabled = GL_FALSE;
5690
5691	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));
5692
5693	if ( cid >= pState->cContexts
5694	\|\| pState->papContexts[cid]->id != cid)
5695	{
5696	Log(("vmsvga3dCommandClear invalid context id!\n"));
5697	return VERR_INVALID_PARAMETER;
5698	}
5699	pContext = pState->papContexts[cid];
5700	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5701
5702	if (clearFlag & SVGA3D_CLEAR_COLOR)
5703	{
5704	GLfloat red, green, blue, alpha;
5705
5706	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5707
5708	/* Set the color clear value. */
5709	glClearColor(red, green, blue, alpha);
5710
5711	mask \|= GL_COLOR_BUFFER_BIT;
5712	}
5713	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5714	{
5715	/** @todo possibly the same problem as with glDepthMask */
5716	glClearStencil(stencil);
5717	mask \|= GL_STENCIL_BUFFER_BIT;
5718	}
5719	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5720	{
5721	glClearDepth((GLdouble)depth);
5722	mask \|= GL_DEPTH_BUFFER_BIT;
5723
5724	/* glClear will not clear the depth buffer if writing is disabled. */
5725	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5726	if (fDepthWriteEnabled == GL_FALSE)
5727	glDepthMask(GL_TRUE);
5728	}
5729
5730	if (cRects)
5731	{
5732	/* Save the current scissor test bit and scissor box. */
5733	glPushAttrib(GL_SCISSOR_BIT);
5734	glEnable(GL_SCISSOR_TEST);
5735	for (unsigned i=0; i < cRects; i++)
5736	{
5737	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));
5738	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5739	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5740	glClear(mask);
5741	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5742	}
5743	/* Restore the old scissor test bit and box */
5744	glPopAttrib();
5745	}
5746	else
5747	{
5748	glClear(mask);
5749	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5750	}
5751
5752	/* Restore depth write state. */
5753	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5754	&& fDepthWriteEnabled == GL_FALSE)
5755	glDepthMask(GL_FALSE);
5756
5757	return VINF_SUCCESS;
5758	}
5759
5760	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5761	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5762	{
5763	normalized = GL_FALSE;
5764	switch (identity.type)
5765	{
5766	case SVGA3D_DECLTYPE_FLOAT1:
5767	size = 1;
5768	type = GL_FLOAT;
5769	break;
5770	case SVGA3D_DECLTYPE_FLOAT2:
5771	size = 2;
5772	type = GL_FLOAT;
5773	break;
5774	case SVGA3D_DECLTYPE_FLOAT3:
5775	size = 3;
5776	type = GL_FLOAT;
5777	break;
5778	case SVGA3D_DECLTYPE_FLOAT4:
5779	size = 4;
5780	type = GL_FLOAT;
5781	break;
5782
5783	case SVGA3D_DECLTYPE_D3DCOLOR:
5784	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5785	type = GL_UNSIGNED_BYTE;
5786	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5787	break;
5788
5789	case SVGA3D_DECLTYPE_UBYTE4N:
5790	normalized = GL_TRUE;
5791	RT_FALL_THRU();
5792	case SVGA3D_DECLTYPE_UBYTE4:
5793	size = 4;
5794	type = GL_UNSIGNED_BYTE;
5795	break;
5796
5797	case SVGA3D_DECLTYPE_SHORT2N:
5798	normalized = GL_TRUE;
5799	RT_FALL_THRU();
5800	case SVGA3D_DECLTYPE_SHORT2:
5801	size = 2;
5802	type = GL_SHORT;
5803	break;
5804
5805	case SVGA3D_DECLTYPE_SHORT4N:
5806	normalized = GL_TRUE;
5807	RT_FALL_THRU();
5808	case SVGA3D_DECLTYPE_SHORT4:
5809	size = 4;
5810	type = GL_SHORT;
5811	break;
5812
5813	case SVGA3D_DECLTYPE_USHORT4N:
5814	normalized = GL_TRUE;
5815	size = 4;
5816	type = GL_UNSIGNED_SHORT;
5817	break;
5818
5819	case SVGA3D_DECLTYPE_USHORT2N:
5820	normalized = GL_TRUE;
5821	size = 2;
5822	type = GL_UNSIGNED_SHORT;
5823	break;
5824
5825	case SVGA3D_DECLTYPE_UDEC3:
5826	size = 3;
5827	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5828	break;
5829
5830	case SVGA3D_DECLTYPE_DEC3N:
5831	normalized = true;
5832	size = 3;
5833	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5834	break;
5835
5836	case SVGA3D_DECLTYPE_FLOAT16_2:
5837	size = 2;
5838	type = GL_HALF_FLOAT;
5839	break;
5840	case SVGA3D_DECLTYPE_FLOAT16_4:
5841	size = 4;
5842	type = GL_HALF_FLOAT;
5843	break;
5844	default:
5845	AssertFailedReturn(VERR_INVALID_PARAMETER);
5846	}
5847
5848	//pVertexElement->Method = identity.method;
5849	//pVertexElement->Usage = identity.usage;
5850
5851	return VINF_SUCCESS;
5852	}
5853
5854	/* Convert VMWare primitive type to its OpenGL equivalent. */
5855	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5856	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5857	{
5858	switch (PrimitiveType)
5859	{
5860	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5861	*pMode = GL_TRIANGLES;
5862	pcVertices = cPrimitiveCount 3;
5863	break;
5864	case SVGA3D_PRIMITIVE_POINTLIST:
5865	*pMode = GL_POINTS;
5866	*pcVertices = cPrimitiveCount;
5867	break;
5868	case SVGA3D_PRIMITIVE_LINELIST:
5869	*pMode = GL_LINES;
5870	pcVertices = cPrimitiveCount 2;
5871	break;
5872	case SVGA3D_PRIMITIVE_LINESTRIP:
5873	*pMode = GL_LINE_STRIP;
5874	*pcVertices = cPrimitiveCount + 1;
5875	break;
5876	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5877	*pMode = GL_TRIANGLE_STRIP;
5878	*pcVertices = cPrimitiveCount + 2;
5879	break;
5880	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5881	*pMode = GL_TRIANGLE_FAN;
5882	*pcVertices = cPrimitiveCount + 2;
5883	break;
5884	default:
5885	return VERR_INVALID_PARAMETER;
5886	}
5887	return VINF_SUCCESS;
5888	}
5889
5890	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5891	{
5892	int rc;
5893
5894	/* Reset the view matrix (also takes the world matrix into account). */
5895	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5896	{
5897	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5898	}
5899	else
5900	{
5901	float matrix[16];
5902
5903	/* identity matrix if no matrix set. */
5904	memset(matrix, 0, sizeof(matrix));
5905	matrix[0] = 1.0;
5906	matrix[5] = 1.0;
5907	matrix[10] = 1.0;
5908	matrix[15] = 1.0;
5909	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5910	}
5911
5912	/* Reset the projection matrix. */
5913	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5914	{
5915	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5916	}
5917	else
5918	{
5919	float matrix[16];
5920
5921	/* identity matrix if no matrix set. */
5922	memset(matrix, 0, sizeof(matrix));
5923	matrix[0] = 1.0;
5924	matrix[5] = 1.0;
5925	matrix[10] = 1.0;
5926	matrix[15] = 1.0;
5927	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5928	}
5929	AssertRC(rc);
5930	return rc;
5931	}
5932
5933	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5934	{
5935	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5936	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5937	PVMSVGA3DSURFACE pVertexSurface;
5938
5939	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5940	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5941
5942	pVertexSurface = pState->papSurfaces[sidVertex];
5943	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5944
5945	/* Create and/or bind the vertex buffer. */
5946	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5947	{
5948	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5949	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5950	pContext = &pState->SharedCtx;
5951	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5952
5953	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5954	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5955
5956	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5957	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5958
5959	Assert(pVertexSurface->fDirty);
5960	/** @todo rethink usage dynamic/static */
5961	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5962	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5963
5964	pVertexSurface->pMipmapLevels[0].fDirty = false;
5965	pVertexSurface->fDirty = false;
5966
5967	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5968
5969	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5970	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5971
5972	pContext = pSavedCtx;
5973	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5974	}
5975
5976	Assert(pVertexSurface->fDirty == false);
5977	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5978	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5979
5980	/* Setup the vertex declarations. */
5981	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5982	{
5983	GLint size;
5984	GLenum type;
5985	GLboolean normalized;
5986	GLuint index = iVertexDeclBase + iVertex;
5987
5988	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));
5989
5990	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5991	AssertRCReturn(rc, rc);
5992
5993	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5994	{
5995	/* Use numbered vertex arrays when shaders are active. */
5996	pState->ext.glEnableVertexAttribArray(index);
5997	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5998	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5999	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6001	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6002	}
6003	else
6004	{
6005	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6006	switch (pVertexDecl[iVertex].identity.usage)
6007	{
6008	case SVGA3D_DECLUSAGE_POSITIONT:
6009	case SVGA3D_DECLUSAGE_POSITION:
6010	{
6011	glEnableClientState(GL_VERTEX_ARRAY);
6012	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6013	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6014	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6015	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6016	break;
6017	}
6018	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6019	AssertFailed();
6020	break;
6021	case SVGA3D_DECLUSAGE_BLENDINDICES:
6022	AssertFailed();
6023	break;
6024	case SVGA3D_DECLUSAGE_NORMAL:
6025	glEnableClientState(GL_NORMAL_ARRAY);
6026	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6027	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6028	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6029	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6030	break;
6031	case SVGA3D_DECLUSAGE_PSIZE:
6032	AssertFailed();
6033	break;
6034	case SVGA3D_DECLUSAGE_TEXCOORD:
6035	/* Specify the affected texture unit. */
6036	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6037	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6038	#else
6039	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6040	#endif
6041	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6043	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6044	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6046	break;
6047	case SVGA3D_DECLUSAGE_TANGENT:
6048	AssertFailed();
6049	break;
6050	case SVGA3D_DECLUSAGE_BINORMAL:
6051	AssertFailed();
6052	break;
6053	case SVGA3D_DECLUSAGE_TESSFACTOR:
6054	AssertFailed();
6055	break;
6056	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6057	glEnableClientState(GL_COLOR_ARRAY);
6058	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6059	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6060	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6061	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6062	break;
6063	case SVGA3D_DECLUSAGE_FOG:
6064	glEnableClientState(GL_FOG_COORD_ARRAY);
6065	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6066	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6067	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6069	break;
6070	case SVGA3D_DECLUSAGE_DEPTH:
6071	AssertFailed();
6072	break;
6073	case SVGA3D_DECLUSAGE_SAMPLE:
6074	AssertFailed();
6075	break;
6076	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6077	}
6078	}
6079
6080	#ifdef LOG_ENABLED
6081	if (pVertexDecl[iVertex].array.stride == 0)
6082	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6083	#endif
6084	}
6085
6086	return VINF_SUCCESS;
6087	}
6088
6089	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6090	{
6091	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6092
6093	/* Clean up the vertex declarations. */
6094	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6095	{
6096	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6097	{
6098	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6099	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6100	vmsvga3dResetTransformMatrices(pThis, pContext);
6101	}
6102
6103	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6104	{
6105	/* Use numbered vertex arrays when shaders are active. */
6106	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6107	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6108	}
6109	else
6110	{
6111	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6112	switch (pVertexDecl[iVertex].identity.usage)
6113	{
6114	case SVGA3D_DECLUSAGE_POSITION:
6115	case SVGA3D_DECLUSAGE_POSITIONT:
6116	glDisableClientState(GL_VERTEX_ARRAY);
6117	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6118	break;
6119	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6120	break;
6121	case SVGA3D_DECLUSAGE_BLENDINDICES:
6122	break;
6123	case SVGA3D_DECLUSAGE_NORMAL:
6124	glDisableClientState(GL_NORMAL_ARRAY);
6125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6126	break;
6127	case SVGA3D_DECLUSAGE_PSIZE:
6128	break;
6129	case SVGA3D_DECLUSAGE_TEXCOORD:
6130	/* Specify the affected texture unit. */
6131	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6132	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6133	#else
6134	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6135	#endif
6136	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6138	break;
6139	case SVGA3D_DECLUSAGE_TANGENT:
6140	break;
6141	case SVGA3D_DECLUSAGE_BINORMAL:
6142	break;
6143	case SVGA3D_DECLUSAGE_TESSFACTOR:
6144	break;
6145	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6146	glDisableClientState(GL_COLOR_ARRAY);
6147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6148	break;
6149	case SVGA3D_DECLUSAGE_FOG:
6150	glDisableClientState(GL_FOG_COORD_ARRAY);
6151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6152	break;
6153	case SVGA3D_DECLUSAGE_DEPTH:
6154	break;
6155	case SVGA3D_DECLUSAGE_SAMPLE:
6156	break;
6157	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6158	}
6159	}
6160	}
6161	/* Unbind the vertex buffer after usage. */
6162	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6164	return VINF_SUCCESS;
6165	}
6166
6167	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6168	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6169	SVGA3dVertexDivisor *pVertexDivisor)
6170	{
6171	RT_NOREF(pVertexDivisor);
6172	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6173	AssertReturn(pState, VERR_INTERNAL_ERROR);
6174	PVMSVGA3DCONTEXT pContext;
6175	int rc = VERR_NOT_IMPLEMENTED;
6176	uint32_t iCurrentVertex;
6177
6178	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6179
6180	/* Caller already check these, but it cannot hurt to check again... */
6181	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6182	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6183	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6184
6185	/** @todo Non-zero cVertexDivisor */
6186	Assert(!cVertexDivisor);
6187
6188	if ( cid >= pState->cContexts
6189	\|\| pState->papContexts[cid]->id != cid)
6190	{
6191	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6192	return VERR_INVALID_PARAMETER;
6193	}
6194	pContext = pState->papContexts[cid];
6195	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6196
6197	/* Check for pretransformed vertex declarations. */
6198	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6199	{
6200	switch (pVertexDecl[iVertex].identity.usage)
6201	{
6202	case SVGA3D_DECLUSAGE_POSITIONT:
6203	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6204	RT_FALL_THRU();
6205	case SVGA3D_DECLUSAGE_POSITION:
6206	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6207	pContext->state.RectViewPort.h,
6208	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6209	break;
6210	default: /* Shut up MSC. */ break;
6211	}
6212	}
6213
6214	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6215	if (pContext->pShaderContext)
6216	{
6217	uint32_t rtHeight = 0;
6218
6219	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6220	{
6221	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6222	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6223	}
6224
6225	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6226	}
6227
6228	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6229	iCurrentVertex = 0;
6230	while (iCurrentVertex < numVertexDecls)
6231	{
6232	uint32_t sidVertex = SVGA_ID_INVALID;
6233	uint32_t iVertex;
6234
6235	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6236	{
6237	if ( sidVertex != SVGA_ID_INVALID
6238	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6239	)
6240	break;
6241	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6242	}
6243
6244	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6245	AssertRCReturn(rc, rc);
6246
6247	iCurrentVertex = iVertex;
6248	}
6249
6250	/* Now draw the primitives. */
6251	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6252	{
6253	GLenum modeDraw;
6254	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6255	PVMSVGA3DSURFACE pIndexSurface = NULL;
6256	unsigned cVertices;
6257
6258	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6259	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6260	if (RT_FAILURE(rc))
6261	{
6262	AssertRC(rc);
6263	goto internal_error;
6264	}
6265
6266	if (sidIndex != SVGA3D_INVALID_ID)
6267	{
6268	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6269
6270	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6271	\|\| sidIndex >= pState->cSurfaces
6272	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6273	{
6274	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6275	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6276	rc = VERR_INVALID_PARAMETER;
6277	goto internal_error;
6278	}
6279	pIndexSurface = pState->papSurfaces[sidIndex];
6280	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6281
6282	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6283	{
6284	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6285	pContext = &pState->SharedCtx;
6286	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6287
6288	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6289	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6290
6291	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6292	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6293
6294	Assert(pIndexSurface->fDirty);
6295
6296	/** @todo rethink usage dynamic/static */
6297	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6298	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6299
6300	pIndexSurface->pMipmapLevels[0].fDirty = false;
6301	pIndexSurface->fDirty = false;
6302
6303	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6304
6305	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6306	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6307
6308	pContext = pState->papContexts[cid];
6309	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6310	}
6311	Assert(pIndexSurface->fDirty == false);
6312
6313	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6314	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6315	}
6316
6317	if (!pIndexSurface)
6318	{
6319	/* Render without an index buffer */
6320	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6321	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6322	}
6323	else
6324	{
6325	GLenum indexType;
6326
6327	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6328	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6329
6330	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6331	{
6332	indexType = GL_UNSIGNED_BYTE;
6333	}
6334	else
6335	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6336	{
6337	indexType = GL_UNSIGNED_SHORT;
6338	}
6339	else
6340	{
6341	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6342	indexType = GL_UNSIGNED_INT;
6343	}
6344
6345	/* Render with an index buffer */
6346	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));
6347	if (pRange[iPrimitive].indexBias == 0)
6348	glDrawElements(modeDraw,
6349	cVertices,
6350	indexType,
6351	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6352	else
6353	pState->ext.glDrawElementsBaseVertex(modeDraw,
6354	cVertices,
6355	indexType,
6356	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6357	pRange[iPrimitive].indexBias); /* basevertex */
6358
6359	/* Unbind the index buffer after usage. */
6360	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6361	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6362	}
6363	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6364	}
6365
6366	internal_error:
6367
6368	/* Deactivate the vertex declarations. */
6369	iCurrentVertex = 0;
6370	while (iCurrentVertex < numVertexDecls)
6371	{
6372	uint32_t sidVertex = SVGA_ID_INVALID;
6373	uint32_t iVertex;
6374
6375	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6376	{
6377	if ( sidVertex != SVGA_ID_INVALID
6378	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6379	)
6380	break;
6381	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6382	}
6383
6384	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6385	AssertRCReturn(rc, rc);
6386
6387	iCurrentVertex = iVertex;
6388	}
6389	#ifdef DEBUG
6390	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
6391	{
6392	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6393	{
6394	GLint activeTexture = 0;
6395	GLint activeTextureUnit = 0;
6396
6397	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6398	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6399	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6400	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6401
6402	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6403	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6404	pState->ext.glActiveTexture(activeTextureUnit);
6405	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6406
6407	# if 0 /* Aren't we checking whether 'activeTexture' on texture unit 'i' matches what we expected? This works if only one unit is active, but if both are it _will_ fail for one of them. */
6408	if (pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6409	{
6410	PVMSVGA3DSURFACE pTexture;
6411	pTexture = pState->papSurfaces[pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0]];
6412
6413	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6414	}
6415	# else
6416	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTextures[i]];
6417	AssertMsg(pTexture->id == pContext->aSidActiveTextures[i], ("%x vs %x\n", pTexture->id, pContext->aSidActiveTextures[i]));
6418	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6419	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6420	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6421	# endif
6422	}
6423	}
6424	#endif
6425
6426	#ifdef DEBUG_GFX_WINDOW
6427	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0])
6428	{
6429	SVGA3dCopyRect rect;
6430
6431	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6432	rect.w = pContext->state.RectViewPort.w;
6433	rect.h = pContext->state.RectViewPort.h;
6434	vmsvga3dCommandPresent(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], 0, NULL);
6435	}
6436	#endif
6437
6438	#if 0
6439	/* Dump render target to a bitmap. */
6440	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6441	{
6442	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6443	PVMSVGA3DSURFACE pSurface;
6444	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6445	if (RT_SUCCESS(rc2))
6446	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6447	}
6448	#endif
6449
6450	return rc;
6451	}
6452
6453
6454	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6455	{
6456	PVMSVGA3DCONTEXT pContext;
6457	PVMSVGA3DSHADER pShader;
6458	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6459	AssertReturn(pState, VERR_NO_MEMORY);
6460	int rc;
6461
6462	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6463	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6464
6465	if ( cid >= pState->cContexts
6466	\|\| pState->papContexts[cid]->id != cid)
6467	{
6468	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6469	return VERR_INVALID_PARAMETER;
6470	}
6471	pContext = pState->papContexts[cid];
6472	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6473
6474	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6475	if (type == SVGA3D_SHADERTYPE_VS)
6476	{
6477	if (shid >= pContext->cVertexShaders)
6478	{
6479	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6480	AssertReturn(pvNew, VERR_NO_MEMORY);
6481	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6482	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6483	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6484	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6485	pContext->cVertexShaders = shid + 1;
6486	}
6487	/* If one already exists with this id, then destroy it now. */
6488	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6489	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6490
6491	pShader = &pContext->paVertexShader[shid];
6492	}
6493	else
6494	{
6495	Assert(type == SVGA3D_SHADERTYPE_PS);
6496	if (shid >= pContext->cPixelShaders)
6497	{
6498	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6499	AssertReturn(pvNew, VERR_NO_MEMORY);
6500	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6501	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6502	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6503	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6504	pContext->cPixelShaders = shid + 1;
6505	}
6506	/* If one already exists with this id, then destroy it now. */
6507	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6508	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6509
6510	pShader = &pContext->paPixelShader[shid];
6511	}
6512
6513	memset(pShader, 0, sizeof(*pShader));
6514	pShader->id = shid;
6515	pShader->cid = cid;
6516	pShader->type = type;
6517	pShader->cbData = cbData;
6518	pShader->pShaderProgram = RTMemAllocZ(cbData);
6519	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6520	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6521
6522	#ifdef DUMP_SHADER_DISASSEMBLY
6523	LPD3DXBUFFER pDisassembly;
6524	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6525	if (hr == D3D_OK)
6526	{
6527	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6528	pDisassembly->Release();
6529	}
6530	#endif
6531
6532	switch (type)
6533	{
6534	case SVGA3D_SHADERTYPE_VS:
6535	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6536	break;
6537
6538	case SVGA3D_SHADERTYPE_PS:
6539	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6540	break;
6541
6542	default:
6543	AssertFailedReturn(VERR_INVALID_PARAMETER);
6544	}
6545	if (rc != VINF_SUCCESS)
6546	{
6547	RTMemFree(pShader->pShaderProgram);
6548	memset(pShader, 0, sizeof(*pShader));
6549	pShader->id = SVGA3D_INVALID_ID;
6550	}
6551
6552	return rc;
6553	}
6554
6555	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6556	{
6557	PVMSVGA3DCONTEXT pContext;
6558	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6559	AssertReturn(pState, VERR_NO_MEMORY);
6560	PVMSVGA3DSHADER pShader = NULL;
6561	int rc;
6562
6563	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6564
6565	if ( cid >= pState->cContexts
6566	\|\| pState->papContexts[cid]->id != cid)
6567	{
6568	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6569	return VERR_INVALID_PARAMETER;
6570	}
6571	pContext = pState->papContexts[cid];
6572	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6573
6574	if (type == SVGA3D_SHADERTYPE_VS)
6575	{
6576	if ( shid < pContext->cVertexShaders
6577	&& pContext->paVertexShader[shid].id == shid)
6578	{
6579	pShader = &pContext->paVertexShader[shid];
6580	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6581	AssertRC(rc);
6582	}
6583	}
6584	else
6585	{
6586	Assert(type == SVGA3D_SHADERTYPE_PS);
6587	if ( shid < pContext->cPixelShaders
6588	&& pContext->paPixelShader[shid].id == shid)
6589	{
6590	pShader = &pContext->paPixelShader[shid];
6591	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6592	AssertRC(rc);
6593	}
6594	}
6595
6596	if (pShader)
6597	{
6598	if (pShader->pShaderProgram)
6599	RTMemFree(pShader->pShaderProgram);
6600	memset(pShader, 0, sizeof(*pShader));
6601	pShader->id = SVGA3D_INVALID_ID;
6602	}
6603	else
6604	AssertFailedReturn(VERR_INVALID_PARAMETER);
6605
6606	return VINF_SUCCESS;
6607	}
6608
6609	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6610	{
6611	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6612	AssertReturn(pState, VERR_NO_MEMORY);
6613	int rc;
6614
6615	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6616
6617	if ( !pContext
6618	&& cid < pState->cContexts
6619	&& pState->papContexts[cid]->id == cid)
6620	pContext = pState->papContexts[cid];
6621	else if (!pContext)
6622	{
6623	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6624	Log(("vmsvga3dShaderSet invalid context id!\n"));
6625	return VERR_INVALID_PARAMETER;
6626	}
6627	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6628
6629	if (type == SVGA3D_SHADERTYPE_VS)
6630	{
6631	/* Save for vm state save/restore. */
6632	pContext->state.shidVertex = shid;
6633	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6634
6635	if ( shid < pContext->cVertexShaders
6636	&& pContext->paVertexShader[shid].id == shid)
6637	{
6638	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6639	Assert(type == pShader->type);
6640
6641	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6642	AssertRCReturn(rc, rc);
6643	}
6644	else
6645	if (shid == SVGA_ID_INVALID)
6646	{
6647	/* Unselect shader. */
6648	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6649	AssertRCReturn(rc, rc);
6650	}
6651	else
6652	AssertFailedReturn(VERR_INVALID_PARAMETER);
6653	}
6654	else
6655	{
6656	/* Save for vm state save/restore. */
6657	pContext->state.shidPixel = shid;
6658	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6659
6660	Assert(type == SVGA3D_SHADERTYPE_PS);
6661	if ( shid < pContext->cPixelShaders
6662	&& pContext->paPixelShader[shid].id == shid)
6663	{
6664	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6665	Assert(type == pShader->type);
6666
6667	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6668	AssertRCReturn(rc, rc);
6669	}
6670	else
6671	if (shid == SVGA_ID_INVALID)
6672	{
6673	/* Unselect shader. */
6674	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6675	AssertRCReturn(rc, rc);
6676	}
6677	else
6678	AssertFailedReturn(VERR_INVALID_PARAMETER);
6679	}
6680
6681	return VINF_SUCCESS;
6682	}
6683
6684	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6685	{
6686	PVMSVGA3DCONTEXT pContext;
6687	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6688	AssertReturn(pState, VERR_NO_MEMORY);
6689	int rc;
6690
6691	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6692
6693	if ( cid >= pState->cContexts
6694	\|\| pState->papContexts[cid]->id != cid)
6695	{
6696	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6697	return VERR_INVALID_PARAMETER;
6698	}
6699	pContext = pState->papContexts[cid];
6700	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6701
6702	for (uint32_t i = 0; i < cRegisters; i++)
6703	{
6704	#ifdef LOG_ENABLED
6705	switch (ctype)
6706	{
6707	case SVGA3D_CONST_TYPE_FLOAT:
6708	{
6709	float pValuesF = (float )pValues;
6710	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)));
6711	break;
6712	}
6713
6714	case SVGA3D_CONST_TYPE_INT:
6715	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6716	break;
6717
6718	case SVGA3D_CONST_TYPE_BOOL:
6719	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6720	break;
6721	}
6722	#endif
6723	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6724	}
6725
6726	switch (type)
6727	{
6728	case SVGA3D_SHADERTYPE_VS:
6729	switch (ctype)
6730	{
6731	case SVGA3D_CONST_TYPE_FLOAT:
6732	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6733	break;
6734
6735	case SVGA3D_CONST_TYPE_INT:
6736	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6737	break;
6738
6739	case SVGA3D_CONST_TYPE_BOOL:
6740	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6741	break;
6742
6743	default:
6744	AssertFailedReturn(VERR_INVALID_PARAMETER);
6745	}
6746	AssertRCReturn(rc, rc);
6747	break;
6748
6749	case SVGA3D_SHADERTYPE_PS:
6750	switch (ctype)
6751	{
6752	case SVGA3D_CONST_TYPE_FLOAT:
6753	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6754	break;
6755
6756	case SVGA3D_CONST_TYPE_INT:
6757	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6758	break;
6759
6760	case SVGA3D_CONST_TYPE_BOOL:
6761	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6762	break;
6763
6764	default:
6765	AssertFailedReturn(VERR_INVALID_PARAMETER);
6766	}
6767	AssertRCReturn(rc, rc);
6768	break;
6769
6770	default:
6771	AssertFailedReturn(VERR_INVALID_PARAMETER);
6772	}
6773
6774	return VINF_SUCCESS;
6775	}
6776
6777	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6778	{
6779	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6780	GLuint idQuery = 0;
6781	pState->ext.glGenQueries(1, &idQuery);
6782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6783	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6784	pContext->occlusion.idQuery = idQuery;
6785	return VINF_SUCCESS;
6786	}
6787
6788	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6789	{
6790	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6791	if (pContext->occlusion.idQuery)
6792	{
6793	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6794	}
6795	return VINF_SUCCESS;
6796	}
6797
6798	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6799	{
6800	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6801	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6802	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6803	return VINF_SUCCESS;
6804	}
6805
6806	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6807	{
6808	RT_NOREF(pContext);
6809	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6810	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6811	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6812	return VINF_SUCCESS;
6813	}
6814
6815	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6816	{
6817	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6818	GLuint pixels = 0;
6819	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6820	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6821
6822	*pu32Pixels = (uint32_t)pixels;
6823	return VINF_SUCCESS;
6824	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 73284

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