DevVGA-SVGA3d-ogl.cpp@ 65381

Last change on this file since 65381 was 65381, checked in by vboxsync, 8 years ago
bugref:8282: Additions/linux: submit DRM driver to the Linux kernel: move all graphics device-related header files to a separate sub-directory and add that to the include path where they are needed. The intention is too be able to remove the VBox/ include folder in the DRM driver package.
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 65381 2017-01-20 09:23:53Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2016 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].size.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#define MANUAL_FLIP_SURFACE_DATA
91	/* Enable to render the result of DrawPrimitive in a seperate window. */
92	//#define DEBUG_GFX_WINDOW
93
94
95	/**
96	* Macro for doing something and then checking for errors during initialization.
97	* Uses AssertLogRelMsg.
98	*/
99	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
100	do \
101	{ \
102	a_Expr; \
103	GLenum iGlError = glGetError(); \
104	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
105	} while (0)
106
107	/**
108	* Macro for doing something and then checking for errors during initialization,
109	* doing the same in the other context when enabled.
110	*
111	* This will try both profiles in dual profile builds. Caller must be in the
112	* default context.
113	*
114	* Uses AssertLogRelMsg to indicate trouble.
115	*/
116	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
117	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
118	do \
119	{ \
120	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
121	a_Expr; \
122	GLenum iGlError = glGetError(); \
123	if (iGlError != GL_NO_ERROR) \
124	{ \
125	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError2 = glGetError(); \
129	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
130	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
131	} \
132	} while (0)
133	#else
134	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
135	#endif
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	/* Define the default light parameters as specified by MSDN. */
142	/** @todo move out; fetched from Wine */
143	const SVGA3dLightData vmsvga3d_default_light =
144	{
145	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
146	false, /* inWorldSpace */
147	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
149	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
150	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
151	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
152	0.0f, /* range */
153	0.0f, /* falloff */
154	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
155	0.0f, /* theta */
156	0.0f /* phi */
157	};
158
159
160	/*********************************************************************************************************************************
161	* Internal Functions *
162	*********************************************************************************************************************************/
163	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
164	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
165
166	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
167	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
168
169
170	/**
171	* Checks if the given OpenGL extension is supported.
172	*
173	* @returns true if supported, false if not.
174	* @param pState The VMSVGA3d state.
175	* @param rsMinGLVersion The OpenGL version that introduced this feature
176	* into the core.
177	* @param pszWantedExtension The name of the OpenGL extension we want padded
178	* with one space at each end.
179	* @remarks Init time only.
180	*/
181	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
182	{
183	RT_NOREF(rsMinGLVersion);
184	/* check padding. */
185	Assert(pszWantedExtension[0] == ' ');
186	Assert(pszWantedExtension[1] != ' ');
187	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
188
189	/* Look it up. */
190	bool fRet = false;
191	if (strstr(pState->pszExtensions, pszWantedExtension))
192	fRet = true;
193
194	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( rsMinGLVersion == 0.0
197	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
205	#endif
206	return fRet;
207	}
208
209
210	/**
211	* Outputs GL_EXTENSIONS list to the release log.
212	*/
213	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
214	{
215	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
216	bool fBuffered = RTLogRelSetBuffering(true);
217
218	/*
219	* Determin the column widths first.
220	*/
221	size_t acchWidths[4] = { 1, 1, 1, 1 };
222	uint32_t i;
223	const char *psz = pszExtensions;
224	for (i = 0; ; i++)
225	{
226	while (*psz == ' ')
227	psz++;
228	if (!*psz)
229	break;
230
231	const char *pszEnd = strchr(psz, ' ');
232	AssertBreak(pszEnd);
233	size_t cch = pszEnd - psz;
234
235	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
236	if (acchWidths[iColumn] < cch)
237	acchWidths[iColumn] = cch;
238
239	psz = pszEnd;
240	}
241
242	/*
243	* Output it.
244	*/
245	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
246	psz = pszExtensions;
247	for (i = 0; ; i++)
248	{
249	while (*psz == ' ')
250	psz++;
251	if (!*psz)
252	break;
253
254	const char *pszEnd = strchr(psz, ' ');
255	AssertBreak(pszEnd);
256	size_t cch = pszEnd - psz;
257
258	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
259	if (iColumn == 0)
260	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
261	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
262	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
263	else
264	LogRel((" %.*s", cch, psz));
265
266	psz = pszEnd;
267	}
268
269	RTLogRelSetBuffering(fBuffered);
270	LogRel(("\n"));
271	}
272
273	/**
274	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
275	* @a ppszExtensions.
276	*
277	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
278	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
279	* @param fGLProfileVersion The OpenGL profile version.
280	*/
281	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
282	{
283	int rc;
284	*ppszExtensions = NULL;
285
286	/*
287	* Try the old glGetString interface first.
288	*/
289	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
290	if (pszExtensions)
291	{
292	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
293	AssertLogRelRCReturn(rc, rc);
294	}
295	else
296	{
297	/*
298	* The new interface where each extension string is retrieved separately.
299	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
300	* the above GL_EXTENSIONS error lingers on darwin. sucks.
301	*/
302	#ifndef GL_NUM_EXTENSIONS
303	# define GL_NUM_EXTENSIONS 0x821D
304	#endif
305	GLint cExtensions = 1024;
306	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
307	Assert(cExtensions != 1024);
308
309	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
310	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
311
312	rc = RTStrAAppend(ppszExtensions, " ");
313	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
314	{
315	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
316	if (pszExt)
317	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
318	}
319	AssertRCReturn(rc, rc);
320	}
321
322	#if 1
323	/*
324	* Add extensions promoted into the core OpenGL profile.
325	*/
326	static const struct
327	{
328	float fGLVersion;
329	const char *pszzExtensions;
330	} s_aPromotedExtensions[] =
331	{
332	{
333	1.1f,
334	" GL_EXT_vertex_array \0"
335	" GL_EXT_polygon_offset \0"
336	" GL_EXT_blend_logic_op \0"
337	" GL_EXT_texture \0"
338	" GL_EXT_copy_texture \0"
339	" GL_EXT_subtexture \0"
340	" GL_EXT_texture_object \0"
341	" GL_ARB_framebuffer_object \0"
342	" GL_ARB_map_buffer_range \0"
343	" GL_ARB_vertex_array_object \0"
344	"\0"
345	},
346	{
347	1.2f,
348	" EXT_texture3D \0"
349	" EXT_bgra \0"
350	" EXT_packed_pixels \0"
351	" EXT_rescale_normal \0"
352	" EXT_separate_specular_color \0"
353	" SGIS_texture_edge_clamp \0"
354	" SGIS_texture_lod \0"
355	" EXT_draw_range_elements \0"
356	"\0"
357	},
358	{
359	1.3f,
360	" GL_ARB_texture_compression \0"
361	" GL_ARB_texture_cube_map \0"
362	" GL_ARB_multisample \0"
363	" GL_ARB_multitexture \0"
364	" GL_ARB_texture_env_add \0"
365	" GL_ARB_texture_env_combine \0"
366	" GL_ARB_texture_env_dot3 \0"
367	" GL_ARB_texture_border_clamp \0"
368	" GL_ARB_transpose_matrix \0"
369	"\0"
370	},
371	{
372	1.5f,
373	" GL_SGIS_generate_mipmap \0"
374	/" GL_NV_blend_equare \0"/
375	" GL_ARB_depth_texture \0"
376	" GL_ARB_shadow \0"
377	" GL_EXT_fog_coord \0"
378	" GL_EXT_multi_draw_arrays \0"
379	" GL_ARB_point_parameters \0"
380	" GL_EXT_secondary_color \0"
381	" GL_EXT_blend_func_separate \0"
382	" GL_EXT_stencil_wrap \0"
383	" GL_ARB_texture_env_crossbar \0"
384	" GL_EXT_texture_lod_bias \0"
385	" GL_ARB_texture_mirrored_repeat \0"
386	" GL_ARB_window_pos \0"
387	"\0"
388	},
389	{
390	1.6f,
391	" GL_ARB_vertex_buffer_object \0"
392	" GL_ARB_occlusion_query \0"
393	" GL_EXT_shadow_funcs \0"
394	},
395	{
396	2.0f,
397	" GL_ARB_shader_objects \0" /??/
398	" GL_ARB_vertex_shader \0" /??/
399	" GL_ARB_fragment_shader \0" /??/
400	" GL_ARB_shading_language_100 \0" /??/
401	" GL_ARB_draw_buffers \0"
402	" GL_ARB_texture_non_power_of_two \0"
403	" GL_ARB_point_sprite \0"
404	" GL_ATI_separate_stencil \0"
405	" GL_EXT_stencil_two_side \0"
406	"\0"
407	},
408	{
409	2.1f,
410	" GL_ARB_pixel_buffer_object \0"
411	" GL_EXT_texture_sRGB \0"
412	"\0"
413	},
414	{
415	3.0f,
416	" GL_ARB_framebuffer_object \0"
417	" GL_ARB_map_buffer_range \0"
418	" GL_ARB_vertex_array_object \0"
419	"\0"
420	},
421	{
422	3.1f,
423	" GL_ARB_copy_buffer \0"
424	" GL_ARB_uniform_buffer_object \0"
425	"\0"
426	},
427	{
428	3.2f,
429	" GL_ARB_vertex_array_bgra \0"
430	" GL_ARB_draw_elements_base_vertex \0"
431	" GL_ARB_fragment_coord_conventions \0"
432	" GL_ARB_provoking_vertex \0"
433	" GL_ARB_seamless_cube_map \0"
434	" GL_ARB_texture_multisample \0"
435	" GL_ARB_depth_clamp \0"
436	" GL_ARB_sync \0"
437	" GL_ARB_geometry_shader4 \0" /??/
438	"\0"
439	},
440	{
441	3.3f,
442	" GL_ARB_blend_func_extended \0"
443	" GL_ARB_sampler_objects \0"
444	" GL_ARB_explicit_attrib_location \0"
445	" GL_ARB_occlusion_query2 \0"
446	" GL_ARB_shader_bit_encoding \0"
447	" GL_ARB_texture_rgb10_a2ui \0"
448	" GL_ARB_texture_swizzle \0"
449	" GL_ARB_timer_query \0"
450	" GL_ARB_vertex_type_2_10_10_10_rev \0"
451	"\0"
452	},
453	{
454	4.0f,
455	" GL_ARB_texture_query_lod \0"
456	" GL_ARB_draw_indirect \0"
457	" GL_ARB_gpu_shader5 \0"
458	" GL_ARB_gpu_shader_fp64 \0"
459	" GL_ARB_shader_subroutine \0"
460	" GL_ARB_tessellation_shader \0"
461	" GL_ARB_texture_buffer_object_rgb32 \0"
462	" GL_ARB_texture_cube_map_array \0"
463	" GL_ARB_texture_gather \0"
464	" GL_ARB_transform_feedback2 \0"
465	" GL_ARB_transform_feedback3 \0"
466	"\0"
467	},
468	{
469	4.1f,
470	" GL_ARB_ES2_compatibility \0"
471	" GL_ARB_get_program_binary \0"
472	" GL_ARB_separate_shader_objects \0"
473	" GL_ARB_shader_precision \0"
474	" GL_ARB_vertex_attrib_64bit \0"
475	" GL_ARB_viewport_array \0"
476	"\0"
477	}
478	};
479
480	uint32_t cPromoted = 0;
481	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
482	{
483	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
484	while (*pszExt)
485	{
486	# ifdef VBOX_STRICT
487	size_t cchExt = strlen(pszExt);
488	Assert(cchExt > 3);
489	Assert(pszExt[0] == ' ');
490	Assert(pszExt[1] != ' ');
491	Assert(pszExt[cchExt - 2] != ' ');
492	Assert(pszExt[cchExt - 1] == ' ');
493	# endif
494
495	if (strstr(*ppszExtensions, pszExt) == NULL)
496	{
497	if (cPromoted++ == 0)
498	{
499	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
500	AssertRCReturn(rc, rc);
501	}
502
503	rc = RTStrAAppend(ppszExtensions, pszExt);
504	AssertRCReturn(rc, rc);
505	}
506
507	pszExt = strchr(pszExt, '\0') + 1;
508	}
509	}
510	#endif
511
512	return VINF_SUCCESS;
513	}
514
515	/**
516	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
517	*/
518	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
519	{
520	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
521	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
523	#else
524	NOREF(pThis);
525	NOREF(fOtherProfile);
526	#endif
527	}
528
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
532	*/
533	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
534	char *pszBuf, size_t cbBuf, bool fOtherProfile)
535	{
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
538	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
539	while (*pszCur == ' ')
540	pszCur++;
541	if (!*pszCur)
542	return false;
543
544	const char *pszEnd = strchr(pszCur, ' ');
545	AssertReturn(pszEnd, false);
546	size_t cch = pszEnd - pszCur;
547	if (cch < cbBuf)
548	{
549	memcpy(pszBuf, pszCur, cch);
550	pszBuf[cch] = '\0';
551	}
552	else if (cbBuf > 0)
553	{
554	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
555	pszBuf[cbBuf - 1] = '\0';
556	}
557
558	ppvEnumCtx = (void )pszEnd;
559	return true;
560	}
561
562
563	/**
564	* Initializes the VMSVGA3D state during VGA device construction.
565	*
566	* Failure are generally not fatal, 3D support will just be disabled.
567	*
568	* @returns VBox status code.
569	* @param pThis The VGA device state where svga.p3dState will be modified.
570	*/
571	int vmsvga3dInit(PVGASTATE pThis)
572	{
573	AssertCompile(GL_TRUE == 1);
574	AssertCompile(GL_FALSE == 0);
575
576	/*
577	* Load and resolve imports from the external shared libraries.
578	*/
579	RTERRINFOSTATIC ErrInfo;
580	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
581	if (RT_FAILURE(rc))
582	{
583	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
584	return rc;
585	}
586	#ifdef RT_OS_DARWIN
587	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
588	if (RT_FAILURE(rc))
589	{
590	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
591	return rc;
592	}
593	#endif
594
595	/*
596	* Allocate the state.
597	*/
598	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
599	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
600
601	#ifdef RT_OS_WINDOWS
602	/* Create event semaphore and async IO thread. */
603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
604	rc = RTSemEventCreate(&pState->WndRequestSem);
605	if (RT_SUCCESS(rc))
606	{
607	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
608	"VMSVGA3DWND");
609	if (RT_SUCCESS(rc))
610	return VINF_SUCCESS;
611
612	/* bail out. */
613	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
614	RTSemEventDestroy(pState->WndRequestSem);
615	}
616	else
617	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
618	RTMemFree(pThis->svga.p3dState);
619	pThis->svga.p3dState = NULL;
620	return rc;
621	#else
622	return VINF_SUCCESS;
623	#endif
624	}
625
626	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
627	int vmsvga3dPowerOn(PVGASTATE pThis)
628	{
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
631	PVMSVGA3DCONTEXT pContext;
632	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
633	PVMSVGA3DCONTEXT pOtherCtx;
634	#endif
635	int rc;
636
637	if (pState->rsGLVersion != 0.0)
638	return VINF_SUCCESS; /* already initialized (load state) */
639
640	/*
641	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
642	*/
643	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
644	AssertRCReturn(rc, rc);
645
646	pContext = pState->papContexts[1];
647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
648
649	LogRel(("VMSVGA3d: OpenGL version: %s\n"
650	"VMSVGA3d: OpenGL Vendor: %s\n"
651	"VMSVGA3d: OpenGL Renderer: %s\n"
652	"VMSVGA3d: OpenGL shader language version: %s\n",
653	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
654	glGetString(GL_SHADING_LANGUAGE_VERSION)));
655
656	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
657	AssertRCReturn(rc, rc);
658	vmsvga3dLogRelExtensions("", pState->pszExtensions);
659
660	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
661
662
663	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
664	/*
665	* Get the extension list for the alternative profile so we can better
666	* figure out the shader model and stuff.
667	*/
668	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
669	AssertLogRelRCReturn(rc, rc);
670	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
671
672	pOtherCtx = pState->papContexts[2];
673	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
674
675	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
676	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
677	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
678	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
679	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
680	glGetString(GL_SHADING_LANGUAGE_VERSION)));
681
682	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
683	AssertRCReturn(rc, rc);
684	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
685
686	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
687
688	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
689	#else
690	pState->pszOtherExtensions = (char *)"";
691	pState->rsOtherGLVersion = pState->rsGLVersion;
692	#endif
693
694
695	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
696	{
697	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
698	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
699	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
700	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
701	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
702	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
703	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
704	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
705	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
706	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
707	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
708	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
709	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
710	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
711	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
712	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
713	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
714	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
715	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
716	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
717	}
718	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
719	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
720	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
721	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
722	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
723	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
724	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
725	#endif
726	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
727	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
729	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
731	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
733	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
735	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
737	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
739	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
741	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
743	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
745	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
749	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
751	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
753	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
754	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
755	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
756	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
757	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
758	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
759	#endif
760	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
761	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
762
763	/* OpenGL 3.2 core */
764	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
765	{
766	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
767	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
768	}
769	else
770	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
771
772	/* OpenGL 3.2 core */
773	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
774	{
775	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
776	}
777	else
778	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
779
780	/* Extension support */
781	#if defined(RT_OS_DARWIN)
782	/** @todo OpenGL version history suggest this, verify... */
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
784	#else
785	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
786	#endif
787
788	/*
789	* Initialize the capabilities with sensible defaults.
790	*/
791	pState->caps.maxActiveLights = 1;
792	pState->caps.maxTextureBufferSize = 65536;
793	pState->caps.maxTextures = 1;
794	pState->caps.maxClipDistances = 4;
795	pState->caps.maxColorAttachments = 1;
796	pState->caps.maxRectangleTextureSize = 2048;
797	pState->caps.maxTextureAnisotropy = 2;
798	pState->caps.maxVertexShaderInstructions = 1024;
799	pState->caps.maxFragmentShaderInstructions = 1024;
800	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
801	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
802	pState->caps.flPointSize[0] = 1;
803	pState->caps.flPointSize[1] = 1;
804
805	/*
806	* Query capabilities
807	*/
808	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
809	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
810	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
811	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
812	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
813	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
814	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
815	#else
816	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
817	#endif
818	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
819	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
820	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
821	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
822
823	if (pState->ext.glGetProgramivARB)
824	{
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
826	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
827	&pState->caps.maxFragmentShaderTemps));
828	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
829	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
830	&pState->caps.maxFragmentShaderInstructions));
831	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
832	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
833	&pState->caps.maxVertexShaderTemps));
834	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
835	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
836	&pState->caps.maxVertexShaderInstructions));
837	}
838	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
839
840	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
841	* ARB Assembly Language
842	* These are done through testing the presence of extensions. You should test them in this order:
843	* GL_NV_gpu_program4: SM 4.0 or better.
844	* GL_NV_vertex_program3: SM 3.0 or better.
845	* GL_ARB_fragment_program: SM 2.0 or better.
846	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
847	*
848	*/
849	/** @todo distinguish between vertex and pixel shaders??? */
850	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
851	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
852	{
853	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
854	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
855	}
856	else
857	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
858	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
859	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
860	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
861	)
862	{
863	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
864	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
865	}
866	else
867	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
868	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
869	{
870	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
871	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
872	}
873	else
874	{
875	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
876	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
877	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
878	}
879
880	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
881	{
882	/** @todo Intel drivers don't support this extension! */
883	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
884	}
885	#if 0
886	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
887	SVGA3D_DEVCAP_QUERY_TYPES = 15,
888	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
889	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
890	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
891	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
892	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
893	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
894	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
895	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
896	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
897	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
898	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
899	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
900	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
901	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
902	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
903	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
904	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
905	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
906	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
907	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
908	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
909	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
910	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
911	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
912	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
913	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
914	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
915	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
916	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
917	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
918	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
919	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
920	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
921	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
922	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
923	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
924	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
925	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
926	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
927	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
928	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
929	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
930	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
931	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
932	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
933	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
934	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
935	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
936	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
937	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
938	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
939	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
940	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
941	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
942	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
943	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
944	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
945	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
946	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
947	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
948	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
949	#endif
950
951	LogRel(("VMSVGA3d: Capabilities:\n"));
952	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
953	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
954	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
955	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
956	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
957	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
958	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
959	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
960	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
961	pState->caps.maxFragmentShaderTemps,
962	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
963	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
964	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
965	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
966
967
968	/* Initialize the shader library. */
969	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
970	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
971	rc = ShaderInitLib(&pState->ShaderIf);
972	AssertRC(rc);
973
974	/* Cleanup */
975	rc = vmsvga3dContextDestroy(pThis, 1);
976	AssertRC(rc);
977	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
978	rc = vmsvga3dContextDestroy(pThis, 2);
979	AssertRC(rc);
980	#endif
981
982	if ( pState->rsGLVersion < 3.0
983	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
984	{
985	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
986	return VERR_NOT_IMPLEMENTED;
987	}
988	if ( !pState->ext.glIsRenderbuffer
989	\|\| !pState->ext.glBindRenderbuffer
990	\|\| !pState->ext.glDeleteRenderbuffers
991	\|\| !pState->ext.glGenRenderbuffers
992	\|\| !pState->ext.glRenderbufferStorage
993	\|\| !pState->ext.glGetRenderbufferParameteriv
994	\|\| !pState->ext.glIsFramebuffer
995	\|\| !pState->ext.glBindFramebuffer
996	\|\| !pState->ext.glDeleteFramebuffers
997	\|\| !pState->ext.glGenFramebuffers
998	\|\| !pState->ext.glCheckFramebufferStatus
999	\|\| !pState->ext.glFramebufferTexture1D
1000	\|\| !pState->ext.glFramebufferTexture2D
1001	\|\| !pState->ext.glFramebufferTexture3D
1002	\|\| !pState->ext.glFramebufferRenderbuffer
1003	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1004	\|\| !pState->ext.glGenerateMipmap
1005	\|\| !pState->ext.glBlitFramebuffer
1006	\|\| !pState->ext.glRenderbufferStorageMultisample
1007	\|\| !pState->ext.glFramebufferTextureLayer)
1008	{
1009	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1010	return VERR_NOT_IMPLEMENTED;
1011	}
1012
1013	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1014	pState->idTestContext = SVGA_ID_INVALID;
1015	#endif
1016	return VINF_SUCCESS;
1017	}
1018
1019	int vmsvga3dReset(PVGASTATE pThis)
1020	{
1021	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1022	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1023
1024	/* Destroy all leftover surfaces. */
1025	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1026	{
1027	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1028	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1029	}
1030
1031	/* Destroy all leftover contexts. */
1032	for (uint32_t i = 0; i < pState->cContexts; i++)
1033	{
1034	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1035	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1036	}
1037
1038	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1039	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1040
1041	return VINF_SUCCESS;
1042	}
1043
1044	int vmsvga3dTerminate(PVGASTATE pThis)
1045	{
1046	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1047	AssertReturn(pState, VERR_WRONG_ORDER);
1048	int rc;
1049
1050	rc = vmsvga3dReset(pThis);
1051	AssertRCReturn(rc, rc);
1052
1053	/* Terminate the shader library. */
1054	rc = ShaderDestroyLib();
1055	AssertRC(rc);
1056
1057	#ifdef RT_OS_WINDOWS
1058	/* Terminate the window creation thread. */
1059	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1060	AssertRCReturn(rc, rc);
1061
1062	RTSemEventDestroy(pState->WndRequestSem);
1063	#elif defined(RT_OS_DARWIN)
1064
1065	#elif defined(RT_OS_LINUX)
1066	/* signal to the thread that it is supposed to exit */
1067	pState->bTerminate = true;
1068	/* wait for it to terminate */
1069	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1070	AssertRC(rc);
1071	XCloseDisplay(pState->display);
1072	#endif
1073
1074	RTStrFree(pState->pszExtensions);
1075	pState->pszExtensions = NULL;
1076	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1077	RTStrFree(pState->pszOtherExtensions);
1078	#endif
1079	pState->pszOtherExtensions = NULL;
1080
1081	return VINF_SUCCESS;
1082	}
1083
1084
1085	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1086	{
1087	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1088	* redraw it. */
1089
1090	#ifdef RT_OS_DARWIN
1091	RT_NOREF(pOldViewport);
1092	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1093	if ( pState
1094	&& idScreen == 0
1095	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1096	{
1097	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1098	}
1099	#else
1100	RT_NOREF(pThis, idScreen, pOldViewport);
1101	#endif
1102	}
1103
1104
1105	/**
1106	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1107	* given surface format capability.
1108	*
1109	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1110	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1111	*
1112	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1113	* of implicit guest expectations:
1114	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1115	*/
1116	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1117	{
1118	uint32_t result = 0;
1119
1120	/** @todo missing:
1121	*
1122	* SVGA3DFORMAT_OP_PIXELSIZE
1123	*/
1124
1125	switch (idx3dCaps)
1126	{
1127	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1128	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1129	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1130	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1131	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1132	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1133	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1134	break;
1135
1136	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1137	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1138	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1139	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1140	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1141	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1142	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1143	break;
1144	}
1145
1146	/** @todo check hardware caps! */
1147	switch (idx3dCaps)
1148	{
1149	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1150	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1151	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1152	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1153	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1154	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1155	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1156	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1157	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1158	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1159	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1160	result \|= SVGA3DFORMAT_OP_TEXTURE
1161	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1162	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1163	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1164	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1165	\| SVGA3DFORMAT_OP_CUBETEXTURE
1166	\| SVGA3DFORMAT_OP_SRGBREAD
1167	\| SVGA3DFORMAT_OP_SRGBWRITE;
1168	break;
1169
1170	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1171	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1172	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1173	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1174	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1175	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1176	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1177	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1178	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1179	break;
1180
1181	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1182	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1183	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1184	result \|= SVGA3DFORMAT_OP_TEXTURE
1185	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1186	\| SVGA3DFORMAT_OP_CUBETEXTURE
1187	\| SVGA3DFORMAT_OP_SRGBREAD;
1188	break;
1189
1190	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1191	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1192	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1193	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1194	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1195	break;
1196
1197	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1198	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1199	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1200	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1201	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1202	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1203	break;
1204
1205	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1206	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1207	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1208
1209	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1210	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1211	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1212	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1213	break;
1214	}
1215	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1216
1217	return result;
1218	}
1219
1220	#if 0 /* unused */
1221	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1222	{
1223	RT_NOREF(pState3D, idx3dCaps);
1224
1225	/** @todo test this somehow */
1226	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1227
1228	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1229	return result;
1230	}
1231	#endif
1232
1233
1234	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1235	{
1236	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1237	AssertReturn(pState, VERR_NO_MEMORY);
1238	int rc = VINF_SUCCESS;
1239
1240	*pu32Val = 0;
1241
1242	/*
1243	* The capabilities access by current (2015-03-01) linux sources (gallium,
1244	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1245	* aren't access.
1246	*/
1247
1248	switch (idx3dCaps)
1249	{
1250	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1251	case SVGA3D_DEVCAP_3D:
1252	pu32Val = 1; / boolean? */
1253	break;
1254
1255	case SVGA3D_DEVCAP_MAX_LIGHTS:
1256	*pu32Val = pState->caps.maxActiveLights;
1257	break;
1258
1259	case SVGA3D_DEVCAP_MAX_TEXTURES:
1260	*pu32Val = pState->caps.maxTextures;
1261	break;
1262
1263	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1264	*pu32Val = pState->caps.maxClipDistances;
1265	break;
1266
1267	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1268	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1269	*pu32Val = pState->caps.vertexShaderVersion;
1270	break;
1271
1272	case SVGA3D_DEVCAP_VERTEX_SHADER:
1273	/* boolean? */
1274	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1275	break;
1276
1277	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1278	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1279	*pu32Val = pState->caps.fragmentShaderVersion;
1280	break;
1281
1282	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1283	/* boolean? */
1284	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1285	break;
1286
1287	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1288	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1289	/* Must be obsolete by now; surface format caps specify the same thing. */
1290	rc = VERR_INVALID_PARAMETER;
1291	break;
1292
1293	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1294	break;
1295
1296	/*
1297	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1298	* return TRUE. Even on physical hardware that does not support
1299	* these formats natively, the SVGA3D device will provide an emulation
1300	* which should be invisible to the guest OS.
1301	*/
1302	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1303	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1304	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1305	*pu32Val = 1;
1306	break;
1307
1308	case SVGA3D_DEVCAP_QUERY_TYPES:
1309	break;
1310
1311	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1312	break;
1313
1314	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1315	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1316	AssertCompile(sizeof(uint32_t) == sizeof(float));
1317	(float )pu32Val = pState->caps.flPointSize[1];
1318	break;
1319
1320	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1321	/** @todo ?? */
1322	rc = VERR_INVALID_PARAMETER;
1323	break;
1324
1325	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1326	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1327	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1328	*pu32Val = pState->caps.maxRectangleTextureSize;
1329	break;
1330
1331	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1332	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1333	//*pu32Val = pCaps->MaxVolumeExtent;
1334	break;
1335
1336	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1337	pu32Val = 32768; / hardcoded in Wine */
1338	break;
1339
1340	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1341	//*pu32Val = pCaps->MaxTextureAspectRatio;
1342	break;
1343
1344	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1345	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1346	*pu32Val = pState->caps.maxTextureAnisotropy;
1347	break;
1348
1349	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1350	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1351	pu32Val = 0xFFFFF; / hardcoded in Wine */
1352	break;
1353
1354	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1355	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1356	*pu32Val = pState->caps.maxVertexShaderInstructions;
1357	break;
1358
1359	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1360	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1361	break;
1362
1363	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1364	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1365	*pu32Val = pState->caps.maxVertexShaderTemps;
1366	break;
1367
1368	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1369	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1370	*pu32Val = pState->caps.maxFragmentShaderTemps;
1371	break;
1372
1373	case SVGA3D_DEVCAP_TEXTURE_OPS:
1374	break;
1375
1376	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1377	break;
1378
1379	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1380	break;
1381
1382	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1383	break;
1384
1385	case SVGA3D_DEVCAP_SUPERSAMPLE:
1386	break;
1387
1388	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1389	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1390	break;
1391
1392	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1393	break;
1394
1395	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1396	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1397	*pu32Val = pState->caps.maxColorAttachments;
1398	break;
1399
1400	/*
1401	* This is the maximum number of SVGA context IDs that the guest
1402	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1403	*/
1404	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1405	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1406	break;
1407
1408	/*
1409	* This is the maximum number of SVGA surface IDs that the guest
1410	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1411	*/
1412	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1413	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1414	break;
1415
1416	#if 0 /* Appeared more recently, not yet implemented. */
1417	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1418	case SVGA3D_DEVCAP_LINE_AA:
1419	break;
1420	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1421	case SVGA3D_DEVCAP_LINE_STIPPLE:
1422	break;
1423	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1424	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1425	break;
1426	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1427	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1428	break;
1429	#endif
1430
1431	/*
1432	* Supported surface formats.
1433	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1434	*/
1435	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1436	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1437	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1438	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1439	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1440	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1441	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1442	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1443	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1444	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1445	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1446	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1447	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1448	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1449	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1450	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1451	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1452	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1453	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1454	break;
1455
1456	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1457	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1458	pu32Val = 0; / apparently not supported in OpenGL */
1459	break;
1460
1461	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1462	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1463	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1464	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1465	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1466	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1467	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1469	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1470	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1471	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1472	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1473	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1474	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1475	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1476	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1477	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1478	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1479	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1480	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1481	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1482	break;
1483
1484	/* Linux: Not referenced in current sources. */
1485	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1486	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1487	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1488	rc = VERR_INVALID_PARAMETER;
1489	*pu32Val = 0;
1490	break;
1491
1492	default:
1493	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1494	rc = VERR_INVALID_PARAMETER;
1495	break;
1496	}
1497
1498	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1499	return rc;
1500	}
1501
1502	/**
1503	* Convert SVGA format value to its OpenGL equivalent
1504	*
1505	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1506	* help from wined3dformat_from_d3dformat().
1507	*/
1508	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1509	{
1510	switch (format)
1511	{
1512	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1513	pSurface->internalFormatGL = GL_RGB8;
1514	pSurface->formatGL = GL_BGRA;
1515	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1516	break;
1517	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1518	pSurface->internalFormatGL = GL_RGBA8;
1519	pSurface->formatGL = GL_BGRA;
1520	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1521	break;
1522	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1523	pSurface->internalFormatGL = GL_RGB5;
1524	pSurface->formatGL = GL_RGB;
1525	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1526	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1527	break;
1528	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1529	pSurface->internalFormatGL = GL_RGB5;
1530	pSurface->formatGL = GL_BGRA;
1531	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1532	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1533	break;
1534	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1535	pSurface->internalFormatGL = GL_RGB5_A1;
1536	pSurface->formatGL = GL_BGRA;
1537	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1538	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1539	break;
1540	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1541	pSurface->internalFormatGL = GL_RGBA4;
1542	pSurface->formatGL = GL_BGRA;
1543	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1544	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1545	break;
1546
1547	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1548	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1549	pSurface->formatGL = GL_DEPTH_COMPONENT;
1550	pSurface->typeGL = GL_UNSIGNED_INT;
1551	break;
1552	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1553	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1554	pSurface->formatGL = GL_DEPTH_COMPONENT;
1555	pSurface->typeGL = GL_UNSIGNED_SHORT;
1556	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1557	break;
1558	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1559	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1560	pSurface->formatGL = GL_DEPTH_STENCIL;
1561	pSurface->typeGL = GL_UNSIGNED_INT;
1562	break;
1563	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1564	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1565	pSurface->formatGL = GL_DEPTH_STENCIL;
1566	pSurface->typeGL = GL_UNSIGNED_SHORT;
1567	/** @todo Wine sources hints at no hw support for this, so test this one! */
1568	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1569	break;
1570	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1571	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1572	pSurface->formatGL = GL_DEPTH_COMPONENT;
1573	pSurface->typeGL = GL_UNSIGNED_INT;
1574	break;
1575
1576	/* Advanced D3D9 depth formats. */
1577	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1578	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1579	pSurface->formatGL = GL_DEPTH_COMPONENT;
1580	pSurface->typeGL = GL_FLOAT;
1581	break;
1582
1583	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1584	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1585	pSurface->formatGL = GL_DEPTH_COMPONENT;
1586	pSurface->typeGL = GL_FLOAT; /* ??? */
1587	break;
1588
1589	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1590	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1591	pSurface->formatGL = GL_DEPTH_STENCIL;
1592	pSurface->typeGL = GL_INT; /* ??? */
1593	break;
1594
1595	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1596	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1597	#if 0
1598	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1599	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1600	#else /* wine suggests: */
1601	pSurface->formatGL = GL_RGBA;
1602	pSurface->typeGL = GL_UNSIGNED_BYTE;
1603	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1604	#endif
1605	break;
1606
1607	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1608	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1609	#if 0 /** @todo this needs testing... */
1610	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1611	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1612	#else /* wine suggests: */
1613	pSurface->formatGL = GL_RGBA;
1614	pSurface->typeGL = GL_UNSIGNED_BYTE;
1615	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1616	#endif
1617	break;
1618
1619	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1620	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1621	#if 0 /** @todo this needs testing... */
1622	pSurface->formatGL = GL_RGBA_S3TC;
1623	pSurface->typeGL = GL_UNSIGNED_INT;
1624	#else /* wine suggests: */
1625	pSurface->formatGL = GL_RGBA;
1626	pSurface->typeGL = GL_UNSIGNED_BYTE;
1627	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1628	#endif
1629	break;
1630
1631	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1632	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1633	pSurface->formatGL = GL_LUMINANCE;
1634	pSurface->typeGL = GL_UNSIGNED_BYTE;
1635	break;
1636
1637	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1638	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1639	pSurface->formatGL = GL_LUMINANCE;
1640	pSurface->typeGL = GL_UNSIGNED_SHORT;
1641	break;
1642
1643	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1644	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1645	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1646	pSurface->typeGL = GL_UNSIGNED_BYTE;
1647	break;
1648
1649	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1650	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1651	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1652	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1653	break;
1654
1655	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1656	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1657	pSurface->formatGL = GL_ALPHA;
1658	pSurface->typeGL = GL_UNSIGNED_BYTE;
1659	break;
1660
1661	#if 0
1662
1663	/* Bump-map formats */
1664	case SVGA3D_BUMPU8V8:
1665	return D3DFMT_V8U8;
1666	case SVGA3D_BUMPL6V5U5:
1667	return D3DFMT_L6V5U5;
1668	case SVGA3D_BUMPX8L8V8U8:
1669	return D3DFMT_X8L8V8U8;
1670	case SVGA3D_BUMPL8V8U8:
1671	/* No corresponding D3D9 equivalent. */
1672	AssertFailedReturn(D3DFMT_UNKNOWN);
1673	/* signed bump-map formats */
1674	case SVGA3D_V8U8:
1675	return D3DFMT_V8U8;
1676	case SVGA3D_Q8W8V8U8:
1677	return D3DFMT_Q8W8V8U8;
1678	case SVGA3D_CxV8U8:
1679	return D3DFMT_CxV8U8;
1680	/* mixed bump-map formats */
1681	case SVGA3D_X8L8V8U8:
1682	return D3DFMT_X8L8V8U8;
1683	case SVGA3D_A2W10V10U10:
1684	return D3DFMT_A2W10V10U10;
1685	#endif
1686
1687	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1688	pSurface->internalFormatGL = GL_RGBA16F;
1689	pSurface->formatGL = GL_RGBA;
1690	#if 0 /* bird: wine uses half float, sounds correct to me... */
1691	pSurface->typeGL = GL_FLOAT;
1692	#else
1693	pSurface->typeGL = GL_HALF_FLOAT;
1694	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1695	#endif
1696	break;
1697
1698	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1699	pSurface->internalFormatGL = GL_RGBA32F;
1700	pSurface->formatGL = GL_RGBA;
1701	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1702	break;
1703
1704	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1705	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1706	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1707	pSurface->formatGL = GL_RGBA;
1708	#else
1709	pSurface->formatGL = GL_BGRA;
1710	#endif
1711	pSurface->typeGL = GL_UNSIGNED_INT;
1712	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1713	break;
1714
1715
1716	/* Single- and dual-component floating point formats */
1717	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1718	pSurface->internalFormatGL = GL_R16F;
1719	pSurface->formatGL = GL_RED;
1720	#if 0 /* bird: wine uses half float, sounds correct to me... */
1721	pSurface->typeGL = GL_FLOAT;
1722	#else
1723	pSurface->typeGL = GL_HALF_FLOAT;
1724	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1725	#endif
1726	break;
1727	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1728	pSurface->internalFormatGL = GL_R32F;
1729	pSurface->formatGL = GL_RG;
1730	pSurface->typeGL = GL_FLOAT;
1731	break;
1732	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1733	pSurface->internalFormatGL = GL_RG16F;
1734	pSurface->formatGL = GL_RG;
1735	#if 0 /* bird: wine uses half float, sounds correct to me... */
1736	pSurface->typeGL = GL_FLOAT;
1737	#else
1738	pSurface->typeGL = GL_HALF_FLOAT;
1739	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1740	#endif
1741	break;
1742	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1743	pSurface->internalFormatGL = GL_RG32F;
1744	pSurface->formatGL = GL_RG;
1745	pSurface->typeGL = GL_FLOAT;
1746	break;
1747
1748	/*
1749	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1750	* the most efficient format to use when creating new surfaces
1751	* expressly for index or vertex data.
1752	*/
1753	case SVGA3D_BUFFER:
1754	pSurface->internalFormatGL = -1;
1755	pSurface->formatGL = -1;
1756	pSurface->typeGL = -1;
1757	break;
1758
1759	#if 0
1760	return D3DFMT_UNKNOWN;
1761
1762	case SVGA3D_V16U16:
1763	return D3DFMT_V16U16;
1764	#endif
1765
1766	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1767	pSurface->internalFormatGL = GL_RG16;
1768	pSurface->formatGL = GL_RG;
1769	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1770	pSurface->typeGL = GL_UNSIGNED_INT;
1771	#else
1772	pSurface->typeGL = GL_UNSIGNED_SHORT;
1773	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1774	#endif
1775	break;
1776
1777	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1778	pSurface->internalFormatGL = GL_RGBA16;
1779	pSurface->formatGL = GL_RGBA;
1780	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1781	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1782	#else
1783	pSurface->typeGL = GL_UNSIGNED_SHORT;
1784	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1785	#endif
1786	break;
1787
1788	#if 0
1789	/* Packed Video formats */
1790	case SVGA3D_UYVY:
1791	return D3DFMT_UYVY;
1792	case SVGA3D_YUY2:
1793	return D3DFMT_YUY2;
1794
1795	/* Planar video formats */
1796	case SVGA3D_NV12:
1797	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1798
1799	/* Video format with alpha */
1800	case SVGA3D_AYUV:
1801	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1802
1803	case SVGA3D_BC4_UNORM:
1804	case SVGA3D_BC5_UNORM:
1805	/* Unknown; only in DX10 & 11 */
1806	break;
1807	#endif
1808	default:
1809	AssertMsgFailed(("Unsupported format %d\n", format));
1810	break;
1811	}
1812	}
1813
1814
1815	#if 0
1816	/**
1817	* Convert SVGA multi sample count value to its D3D equivalent
1818	*/
1819	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1820	{
1821	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1822	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1823
1824	if (multisampleCount > 16)
1825	return D3DMULTISAMPLE_NONE;
1826
1827	/** @todo exact same mapping as d3d? */
1828	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1829	}
1830	#endif
1831
1832	/**
1833	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1834	*
1835	* @param pState The VMSVGA3d state.
1836	* @param pSurface The surface being destroyed.
1837	*/
1838	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1839	{
1840	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1841	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1842
1843	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1844	{
1845	case SVGA3D_SURFACE_CUBEMAP:
1846	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1847	break;
1848
1849	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1850	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1851	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1852	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1853	{
1854	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1855	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1856	}
1857	break;
1858
1859	case SVGA3D_SURFACE_HINT_TEXTURE:
1860	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1861	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1862	{
1863	glDeleteTextures(1, &pSurface->oglId.texture);
1864	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1865	}
1866	break;
1867
1868	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1869	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1870	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1871	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1872	{
1873	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1874	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1875	}
1876	break;
1877
1878	default:
1879	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1880	break;
1881	}
1882	}
1883
1884
1885	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1886	{
1887	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1888	uint32_t sidSrc = src.sid;
1889	uint32_t sidDest = dest.sid;
1890	int rc = VINF_SUCCESS;
1891
1892	AssertReturn(pState, VERR_NO_MEMORY);
1893	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1894	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1895	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1896	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1897
1898	for (uint32_t i = 0; i < cCopyBoxes; i++)
1899	{
1900	SVGA3dBox destBox, srcBox;
1901
1902	srcBox.x = pBox[i].srcx;
1903	srcBox.y = pBox[i].srcy;
1904	srcBox.z = pBox[i].srcz;
1905	srcBox.w = pBox[i].w;
1906	srcBox.h = pBox[i].h;
1907	srcBox.d = pBox[i].z; /* XXX what about pBox[i].d? */
1908
1909	destBox.x = pBox[i].x;
1910	destBox.y = pBox[i].y;
1911	destBox.z = pBox[i].z;
1912	destBox.w = pBox[i].w;
1913	destBox.h = pBox[i].h;
1914	destBox.z = pBox[i].z; /* XXX initializing destBox.z again? What about pBox[i].d and destBox.d? */
1915
1916	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1917	AssertRCReturn(rc, rc);
1918	}
1919	return VINF_SUCCESS;
1920	}
1921
1922
1923	/**
1924	* Save texture unpacking parameters and loads those appropriate for the given
1925	* surface.
1926	*
1927	* @param pState The VMSVGA3D state structure.
1928	* @param pContext The active context.
1929	* @param pSurface The surface.
1930	* @param pSave Where to save stuff.
1931	*/
1932	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1933	PVMSVGAPACKPARAMS pSave)
1934	{
1935	RT_NOREF(pState);
1936
1937	/*
1938	* Save (ignore errors, setting the defaults we want and avoids restore).
1939	*/
1940	pSave->iAlignment = 1;
1941	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1942	pSave->cxRow = 0;
1943	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1944
1945	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1946	pSave->cyImage = 0;
1947	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1948	Assert(pSave->cyImage == 0);
1949
1950	pSave->fSwapBytes = GL_FALSE;
1951	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1952	Assert(pSave->fSwapBytes == GL_FALSE);
1953
1954	pSave->fLsbFirst = GL_FALSE;
1955	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1956	Assert(pSave->fLsbFirst == GL_FALSE);
1957
1958	pSave->cSkipRows = 0;
1959	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1960	Assert(pSave->cSkipRows == 0);
1961
1962	pSave->cSkipPixels = 0;
1963	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1964	Assert(pSave->cSkipPixels == 0);
1965
1966	pSave->cSkipImages = 0;
1967	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1968	Assert(pSave->cSkipImages == 0);
1969
1970	VMSVGA3D_CLEAR_GL_ERRORS();
1971	#endif
1972
1973	/*
1974	* Setup unpack.
1975	*
1976	* Note! We use 1 as alignment here because we currently don't do any
1977	* aligning of line pitches anywhere.
1978	*/
1979	NOREF(pSurface);
1980	if (pSave->iAlignment != 1)
1981	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
1982	if (pSave->cxRow != 0)
1983	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
1984	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1985	if (pSave->cyImage != 0)
1986	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
1987	if (pSave->fSwapBytes != 0)
1988	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
1989	if (pSave->fLsbFirst != 0)
1990	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
1991	if (pSave->cSkipRows != 0)
1992	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
1993	if (pSave->cSkipPixels != 0)
1994	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
1995	if (pSave->cSkipImages != 0)
1996	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
1997	#endif
1998	}
1999
2000
2001	/**
2002	* Restores texture unpacking parameters.
2003	*
2004	* @param pState The VMSVGA3D state structure.
2005	* @param pContext The active context.
2006	* @param pSurface The surface.
2007	* @param pSave Where stuff was saved.
2008	*/
2009	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2010	PCVMSVGAPACKPARAMS pSave)
2011	{
2012	RT_NOREF(pState, pSurface);
2013
2014	if (pSave->iAlignment != 1)
2015	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2016	if (pSave->cxRow != 0)
2017	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2018	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2019	if (pSave->cyImage != 0)
2020	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2021	if (pSave->fSwapBytes != 0)
2022	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2023	if (pSave->fLsbFirst != 0)
2024	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2025	if (pSave->cSkipRows != 0)
2026	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2027	if (pSave->cSkipPixels != 0)
2028	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2029	if (pSave->cSkipImages != 0)
2030	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2031	#endif
2032	}
2033
2034
2035	/**
2036	* Create D3D/OpenGL texture object for the specified surface.
2037	*
2038	* Surfaces are created when needed.
2039	*
2040	* @param pState The VMSVGA3d state.
2041	* @param pContext The context.
2042	* @param idAssociatedContext Probably the same as pContext->id.
2043	* @param pSurface The surface to create the texture for.
2044	*/
2045	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2046	PVMSVGA3DSURFACE pSurface)
2047	{
2048	RT_NOREF(idAssociatedContext);
2049	GLint activeTexture = 0;
2050	uint32_t idPrevCtx = pState->idActiveContext;
2051	pContext = &pState->SharedCtx;
2052	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2053
2054	glGenTextures(1, &pSurface->oglId.texture);
2055	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2056	/** @todo Set the mip map generation filter settings. */
2057
2058	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2059	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2060
2061	/* Must bind texture to the current context in order to change it. */
2062	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2063	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2064
2065	/* Set the unpacking parameters. */
2066	VMSVGAPACKPARAMS SavedParams;
2067	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2068
2069	/* Set the mipmap base and max level paramters. */
2070	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2071	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2072	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2073	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2074
2075	if (pSurface->fDirty)
2076	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2077
2078	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2079	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2080	{
2081	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2082	exposing random host memory to the guest and helps a with the fedora 21 surface
2083	corruption issues (launchpad, background, search field, login). */
2084	if (pSurface->pMipmapLevels[i].fDirty)
2085	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2086
2087	glTexImage2D(GL_TEXTURE_2D,
2088	i,
2089	pSurface->internalFormatGL,
2090	pSurface->pMipmapLevels[i].size.width,
2091	pSurface->pMipmapLevels[i].size.height,
2092	0,
2093	pSurface->formatGL,
2094	pSurface->typeGL,
2095	pSurface->pMipmapLevels[i].pSurfaceData);
2096
2097	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2098
2099	pSurface->pMipmapLevels[i].fDirty = false;
2100	}
2101	pSurface->fDirty = false;
2102
2103	/* Restore unpacking parameters. */
2104	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2105
2106	/* Restore the old active texture. */
2107	glBindTexture(GL_TEXTURE_2D, activeTexture);
2108	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2109
2110	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2111
2112	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2113	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2114	return VINF_SUCCESS;
2115	}
2116
2117
2118	/**
2119	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2120	*
2121	* @returns VBox status code.
2122	* @param pThis The VGA device instance.
2123	* @param pState The VMSVGA3d state.
2124	* @param pDstSurface The destination host surface.
2125	* @param uDstMipmap The destination mipmap level (valid).
2126	* @param pDstBox The destination box.
2127	* @param pSrcSurface The source host surface.
2128	* @param uSrcMipmap The source mimap level (valid).
2129	* @param pSrcBox The source box.
2130	* @param enmMode The strecht blt mode .
2131	* @param pContext The VMSVGA3d context (already current for OGL).
2132	*/
2133	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2134	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2135	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2136	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2137	{
2138	RT_NOREF(pThis);
2139
2140	/* Activate the read and draw framebuffer objects. */
2141	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2142	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2143	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2144	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2145
2146	/* Bind the source and destination objects to the right place. */
2147	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2148	pSrcSurface->oglId.texture, uSrcMipmap);
2149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2150	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2151	pDstSurface->oglId.texture, uDstMipmap);
2152	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2153
2154	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n", pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2155	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2156	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2157
2158	pState->ext.glBlitFramebuffer(pSrcBox->x,
2159	#ifdef MANUAL_FLIP_SURFACE_DATA
2160	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2161	#else
2162	pSrcBox->y,
2163	#endif
2164	pSrcBox->x + pSrcBox->w, /* exclusive. */
2165	#ifdef MANUAL_FLIP_SURFACE_DATA
2166	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2167	#else
2168	pSrcBox->y + pSrcBox->h,
2169	#endif
2170	pDstBox->x,
2171	#ifdef MANUAL_FLIP_SURFACE_DATA
2172	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2173	#else
2174	pDstBox->y,
2175	#endif
2176	pDstBox->x + pDstBox->w, /* exclusive. */
2177	#ifdef MANUAL_FLIP_SURFACE_DATA
2178	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2179	#else
2180	pDstBox->y + pDstBox->h,
2181	#endif
2182	GL_COLOR_BUFFER_BIT,
2183	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2185
2186	/* Reset the frame buffer association */
2187	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2189
2190	return VINF_SUCCESS;
2191	}
2192
2193	/**
2194	* Save texture packing parameters and loads those appropriate for the given
2195	* surface.
2196	*
2197	* @param pState The VMSVGA3D state structure.
2198	* @param pContext The active context.
2199	* @param pSurface The surface.
2200	* @param pSave Where to save stuff.
2201	*/
2202	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2203	PVMSVGAPACKPARAMS pSave)
2204	{
2205	RT_NOREF(pState);
2206	/*
2207	* Save (ignore errors, setting the defaults we want and avoids restore).
2208	*/
2209	pSave->iAlignment = 1;
2210	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2211	pSave->cxRow = 0;
2212	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2213
2214	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2215	pSave->cyImage = 0;
2216	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2217	Assert(pSave->cyImage == 0);
2218
2219	pSave->fSwapBytes = GL_FALSE;
2220	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2221	Assert(pSave->fSwapBytes == GL_FALSE);
2222
2223	pSave->fLsbFirst = GL_FALSE;
2224	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2225	Assert(pSave->fLsbFirst == GL_FALSE);
2226
2227	pSave->cSkipRows = 0;
2228	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2229	Assert(pSave->cSkipRows == 0);
2230
2231	pSave->cSkipPixels = 0;
2232	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2233	Assert(pSave->cSkipPixels == 0);
2234
2235	pSave->cSkipImages = 0;
2236	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2237	Assert(pSave->cSkipImages == 0);
2238
2239	VMSVGA3D_CLEAR_GL_ERRORS();
2240	#endif
2241
2242	/*
2243	* Setup unpack.
2244	*
2245	* Note! We use 1 as alignment here because we currently don't do any
2246	* aligning of line pitches anywhere.
2247	*/
2248	NOREF(pSurface);
2249	if (pSave->iAlignment != 1)
2250	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2251	if (pSave->cxRow != 0)
2252	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2253	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2254	if (pSave->cyImage != 0)
2255	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2256	if (pSave->fSwapBytes != 0)
2257	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2258	if (pSave->fLsbFirst != 0)
2259	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2260	if (pSave->cSkipRows != 0)
2261	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2262	if (pSave->cSkipPixels != 0)
2263	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2264	if (pSave->cSkipImages != 0)
2265	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2266	#endif
2267	}
2268
2269
2270	/**
2271	* Restores texture packing parameters.
2272	*
2273	* @param pState The VMSVGA3D state structure.
2274	* @param pContext The active context.
2275	* @param pSurface The surface.
2276	* @param pSave Where stuff was saved.
2277	*/
2278	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2279	PCVMSVGAPACKPARAMS pSave)
2280	{
2281	RT_NOREF(pState, pSurface);
2282	if (pSave->iAlignment != 1)
2283	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2284	if (pSave->cxRow != 0)
2285	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2286	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2287	if (pSave->cyImage != 0)
2288	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2289	if (pSave->fSwapBytes != 0)
2290	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2291	if (pSave->fLsbFirst != 0)
2292	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2293	if (pSave->cSkipRows != 0)
2294	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2295	if (pSave->cSkipPixels != 0)
2296	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2297	if (pSave->cSkipImages != 0)
2298	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2299	#endif
2300	}
2301
2302
2303	/**
2304	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2305	*
2306	* @returns Failure status code or @a rc.
2307	* @param pThis The VGA device instance data.
2308	* @param pState The VMSVGA3d state.
2309	* @param pSurface The host surface.
2310	* @param uHostMipmap The host mipmap level (valid).
2311	* @param GuestPtr The guest pointer.
2312	* @param cbSrcPitch The guest (?) pitch.
2313	* @param transfer The transfer direction.
2314	* @param pBox The box to copy.
2315	* @param pContext The context (for OpenGL).
2316	* @param rc The current rc for all boxes.
2317	* @param iBox The current box number (for Direct 3D).
2318	*/
2319	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface, uint32_t uHostMipmap,
2320	SVGAGuestPtr GuestPtr, uint32_t cbSrcPitch, SVGA3dTransferType transfer,
2321	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2322	{
2323	RT_NOREF(iBox);
2324	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[uHostMipmap];
2325
2326	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2327	{
2328	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2329	case SVGA3D_SURFACE_HINT_TEXTURE:
2330	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2331	{
2332	uint32_t cbSurfacePitch;
2333	uint8_t pDoubleBuffer, pBufferStart;
2334	unsigned uDestOffset = 0;
2335
2336	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2337	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2338
2339	if (transfer == SVGA3D_READ_HOST_VRAM)
2340	{
2341	GLint activeTexture;
2342
2343	/* Must bind texture to the current context in order to read it. */
2344	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2345	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2346
2347	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2348	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2349
2350	/* Set row length and alignment of the input data. */
2351	VMSVGAPACKPARAMS SavedParams;
2352	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2353
2354	glGetTexImage(GL_TEXTURE_2D,
2355	uHostMipmap,
2356	pSurface->formatGL,
2357	pSurface->typeGL,
2358	pDoubleBuffer);
2359	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2360
2361	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2362
2363	/* Restore the old active texture. */
2364	glBindTexture(GL_TEXTURE_2D, activeTexture);
2365	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2366
2367	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2368	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2369	<= pMipLevel->cbSurface,
2370	RTMemFree(pDoubleBuffer),
2371	VERR_INTERNAL_ERROR);
2372
2373	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2374
2375	#ifdef MANUAL_FLIP_SURFACE_DATA
2376	pBufferStart = pDoubleBuffer
2377	+ pBox->x * pSurface->cbBlock
2378	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2379	- cbSurfacePitch; /* flip image during copy */
2380	#else
2381	pBufferStart = pDoubleBuffer + uDestOffset;
2382	#endif
2383	}
2384	else
2385	{
2386	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2387	#ifdef MANUAL_FLIP_SURFACE_DATA
2388	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2389	#else
2390	pBufferStart = pDoubleBuffer;
2391	#endif
2392	}
2393
2394	rc = vmsvgaGMRTransfer(pThis,
2395	transfer,
2396	pBufferStart,
2397	#ifdef MANUAL_FLIP_SURFACE_DATA
2398	-(int32_t)cbSurfacePitch,
2399	#else
2400	(int32_t)cbSurfacePitch,
2401	#endif
2402	GuestPtr,
2403	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2404	cbSrcPitch,
2405	pBox->w * pSurface->cbBlock,
2406	pBox->h);
2407	AssertRC(rc);
2408
2409	/* Update the opengl surface data. */
2410	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2411	{
2412	GLint activeTexture = 0;
2413
2414	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2415	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2416
2417	/* Must bind texture to the current context in order to change it. */
2418	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2419	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2420
2421	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2422
2423	/* Set row length and alignment of the input data. */
2424	VMSVGAPACKPARAMS SavedParams;
2425	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2426
2427	glTexSubImage2D(GL_TEXTURE_2D,
2428	uHostMipmap,
2429	pBox->x,
2430	pBox->y,
2431	pBox->w,
2432	pBox->h,
2433	pSurface->formatGL,
2434	pSurface->typeGL,
2435	pDoubleBuffer);
2436
2437	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2438
2439	/* Restore old values. */
2440	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2441
2442	/* Restore the old active texture. */
2443	glBindTexture(GL_TEXTURE_2D, activeTexture);
2444	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2445	}
2446
2447	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2448
2449	/* Free the double buffer. */
2450	RTMemFree(pDoubleBuffer);
2451	break;
2452	}
2453
2454	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2455	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2456	break;
2457
2458	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2459	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2460	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2461	{
2462	Assert(pBox->h == 1);
2463
2464	VMSVGA3D_CLEAR_GL_ERRORS();
2465	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2466	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2467	{
2468	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2469	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2470	if (RT_LIKELY(pbData != NULL))
2471	{
2472	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2473	GLint cbStrictBufSize;
2474	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2475	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2476	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2477	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2478	#endif
2479
2480	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2481	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2482	<= pMipLevel->cbSurface))
2483	{
2484	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2485	(pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2486	(pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2487	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2488
2489	rc = vmsvgaGMRTransfer(pThis,
2490	transfer,
2491	pbData + offDst,
2492	pMipLevel->cbSurfacePitch,
2493	GuestPtr,
2494	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2495	cbSrcPitch,
2496	pBox->w * pSurface->cbBlock,
2497	pBox->h);
2498	AssertRC(rc);
2499
2500	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
2501	}
2502	else
2503	{
2504	AssertFailed();
2505	rc = VERR_INTERNAL_ERROR;
2506	}
2507
2508	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2509	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2510	}
2511	else
2512	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2513	}
2514	else
2515	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2516	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2517	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2518	break;
2519	}
2520
2521	default:
2522	AssertFailed();
2523	break;
2524	}
2525
2526	return rc;
2527	}
2528
2529
2530	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2531	{
2532	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2533	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));
2534	for (uint32_t i = 0; i < cRects; i++)
2535	{
2536	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2537	}
2538
2539	/** @todo Only screen 0 for now. */
2540	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2541	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2542	/** @todo scaling */
2543	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2544
2545	if (cRects == 0)
2546	{
2547	/* easy case; no clipping */
2548	SVGA3dCopyBox box;
2549	SVGA3dGuestImage dst;
2550
2551	box.x = destRect.left;
2552	box.y = destRect.top;
2553	box.z = 0;
2554	box.w = destRect.right - destRect.left;
2555	box.h = destRect.bottom - destRect.top;
2556	box.d = 1;
2557	box.srcx = srcRect.left;
2558	box.srcy = srcRect.top;
2559	box.srcz = 0;
2560
2561	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2562	dst.ptr.offset = 0;
2563	dst.pitch = pThis->svga.cbScanline;
2564
2565	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2566	AssertRCReturn(rc, rc);
2567
2568	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2569	return VINF_SUCCESS;
2570	}
2571	else
2572	{
2573	SVGA3dGuestImage dst;
2574	SVGA3dCopyBox box;
2575
2576	box.srcz = 0;
2577	box.z = 0;
2578	box.d = 1;
2579
2580	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2581	dst.ptr.offset = 0;
2582	dst.pitch = pThis->svga.cbScanline;
2583
2584	/** @todo merge into one SurfaceDMA call */
2585	for (uint32_t i = 0; i < cRects; i++)
2586	{
2587	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2588	box.srcx = srcRect.left + pRect[i].left;
2589	box.srcy = srcRect.top + pRect[i].top;
2590
2591	box.x = pRect[i].left + destRect.left;
2592	box.y = pRect[i].top + destRect.top;
2593	box.z = 0;
2594	box.w = pRect[i].right - pRect[i].left;
2595	box.h = pRect[i].bottom - pRect[i].top;
2596
2597	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2598	AssertRCReturn(rc, rc);
2599
2600	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2601	}
2602
2603	return VINF_SUCCESS;
2604	}
2605	}
2606
2607	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2608	{
2609	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2610	PVMSVGA3DSURFACE pSurface;
2611	int rc = VINF_SUCCESS;
2612	PVMSVGA3DCONTEXT pContext;
2613	uint32_t cid;
2614	GLint activeTexture = 0;
2615
2616	AssertReturn(pState, VERR_NO_MEMORY);
2617	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2618	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2619
2620	pSurface = pState->papSurfaces[sid];
2621
2622	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2623	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2624	pSurface->autogenFilter = filter;
2625
2626	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2627
2628	cid = SVGA3D_INVALID_ID;
2629	pContext = &pState->SharedCtx;
2630	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2631
2632	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2633	{
2634	/* Unknown surface type; turn it into a texture. */
2635	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
2636	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2637	AssertRCReturn(rc, rc);
2638	}
2639	else
2640	{
2641	/** @todo new filter */
2642	AssertFailed();
2643	}
2644
2645	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2646	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2647
2648	/* Must bind texture to the current context in order to change it. */
2649	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2650	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2651
2652	/* Generate the mip maps. */
2653	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2655
2656	/* Restore the old texture. */
2657	glBindTexture(GL_TEXTURE_2D, activeTexture);
2658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2659
2660	return VINF_SUCCESS;
2661	}
2662
2663	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2664	{
2665	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2666	PVMSVGA3DSURFACE pSurface;
2667	PVMSVGA3DCONTEXT pContext;
2668	uint32_t cid;
2669
2670	AssertReturn(pState, VERR_NO_MEMORY);
2671	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2672	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2673
2674	pSurface = pState->papSurfaces[sid];
2675
2676	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2677	for (uint32_t i=0; i < cRects; i++)
2678	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));
2679
2680	pContext = &pState->SharedCtx;
2681	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2682	cid = pContext->id;
2683	VMSVGA3D_CLEAR_GL_ERRORS();
2684
2685	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2686	/*
2687	* Source surface different size?
2688	*/
2689	RTRECT2 srcViewPort;
2690	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2691	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2692	{
2693	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2694	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2695
2696	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2697	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2698	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2699	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2700
2701	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2702	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2703	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2704	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2705	}
2706	else
2707	{
2708	srcViewPort.x = pThis->svga.viewport.x;
2709	srcViewPort.y = pThis->svga.viewport.y;
2710	srcViewPort.cx = pThis->svga.viewport.cx;
2711	srcViewPort.cy = pThis->svga.viewport.cy;
2712	}
2713	RTRECT SrcViewPortRect;
2714	SrcViewPortRect.xLeft = srcViewPort.x;
2715	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2716	SrcViewPortRect.yBottom = srcViewPort.y;
2717	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2718	#endif
2719
2720
2721	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2722	/*
2723	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2724	*/
2725	SVGA3dCopyRect rect;
2726	uint32_t oldVShader, oldPShader;
2727	GLint oldTextureId;
2728
2729	if (cRects == 0)
2730	{
2731	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2732	rect.w = pSurface->pMipmapLevels[0].size.width;
2733	rect.h = pSurface->pMipmapLevels[0].size.height;
2734	pRect = &rect;
2735	cRects = 1;
2736	}
2737
2738	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2739
2740	#if 0
2741	glDisable(GL_CULL_FACE);
2742	glDisable(GL_BLEND);
2743	glDisable(GL_ALPHA_TEST);
2744	glDisable(GL_SCISSOR_TEST);
2745	glDisable(GL_STENCIL_TEST);
2746	glEnable(GL_DEPTH_TEST);
2747	glDepthFunc(GL_ALWAYS);
2748	glDepthMask(GL_TRUE);
2749	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2750	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2751	#endif
2752
2753	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2754
2755	oldVShader = pContext->state.shidVertex;
2756	oldPShader = pContext->state.shidPixel;
2757	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2758	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2759
2760	/* Flush shader changes. */
2761	if (pContext->pShaderContext)
2762	ShaderUpdateState(pContext->pShaderContext, 0);
2763
2764	/* Activate the read and draw framebuffer objects. */
2765	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2766	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2767
2768	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2769	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2770	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2771
2772	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2773	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2774
2775	#if 0
2776	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2777	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2778	#endif
2779
2780	/* Reset the transformation matrices. */
2781	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2782	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2783	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2784	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2785	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2786	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2787	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2788	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2789
2790	for (uint32_t i = 0; i < cRects; i++)
2791	{
2792	float left, right, top, bottom; /* Texture coordinates */
2793	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2794
2795	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2796	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2797	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2798	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2799	pRect[i].w = pThis->svga.viewport.cx;
2800	pRect[i].h = pThis->svga.viewport.cy;
2801
2802	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2803	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2804	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2805	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2806	{
2807	/* Intersection is empty; skip */
2808	continue;
2809	}
2810
2811	left = pRect[i].srcx;
2812	right = pRect[i].srcx + pRect[i].w;
2813	top = pRect[i].srcy + pRect[i].h;
2814	bottom = pRect[i].srcy;
2815
2816	left /= pSurface->pMipmapLevels[0].size.width;
2817	right /= pSurface->pMipmapLevels[0].size.width;
2818	top /= pSurface->pMipmapLevels[0].size.height;
2819	bottom /= pSurface->pMipmapLevels[0].size.height;
2820
2821	vertexLeft = pRect[i].x;
2822	vertexRight = pRect[i].x + pRect[i].w;
2823	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2824	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2825
2826	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2827	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2828	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)));
2829
2830	glBegin(GL_QUADS);
2831
2832	/* bottom left */
2833	glTexCoord2f(left, bottom);
2834	glVertex2i(vertexLeft, vertexBottom);
2835
2836	/* top left */
2837	glTexCoord2f(left, top);
2838	glVertex2i(vertexLeft, vertexTop);
2839
2840	/* top right */
2841	glTexCoord2f(right, top);
2842	glVertex2i(vertexRight, vertexTop);
2843
2844	/* bottom right */
2845	glTexCoord2f(right, bottom);
2846	glVertex2i(vertexRight, vertexBottom);
2847
2848	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2849	}
2850
2851	/* Restore old settings. */
2852	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2853	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2854	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2855	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2856
2857	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2858
2859	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2860	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2861	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2862
2863	#else
2864	/*
2865	* glBlitFramebuffer variant.
2866	*/
2867	/* Activate the read and draw framebuffer objects. */
2868	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2869	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2870	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2871	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2872
2873	/* Bind the source objects to the right place. */
2874	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2875	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2876
2877
2878	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2879	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2880	ASMCompilerBarrier(); /* paranoia */
2881	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2882
2883	/* If there are no recangles specified, just grab a screenful. */
2884	SVGA3dCopyRect DummyRect;
2885	if (cRects != 0)
2886	{ /* likely */ }
2887	else
2888	{
2889	/** @todo Find the usecase for this or check what the original device does.
2890	* The original code was doing some scaling based on the surface
2891	* size... */
2892	# ifdef DEBUG_bird
2893	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2894	# endif
2895	DummyRect.x = DummyRect.srcx = 0;
2896	DummyRect.y = DummyRect.srcy = 0;
2897	DummyRect.w = pThis->svga.uWidth;
2898	DummyRect.h = pThis->svga.uHeight;
2899	cRects = 1;
2900	pRect = &DummyRect;
2901	}
2902
2903	/*
2904	* Blit the surface rectangle(s) to the back buffer.
2905	*/
2906	uint32_t const cxSurface = pSurface->pMipmapLevels[0].size.width;
2907	uint32_t const cySurface = pSurface->pMipmapLevels[0].size.height;
2908	for (uint32_t i = 0; i < cRects; i++)
2909	{
2910	SVGA3dCopyRect ClippedRect = pRect[i];
2911
2912	/*
2913	* Do some sanity checking and limit width and height, all so we
2914	* don't need to think about wrap-arounds below.
2915	*/
2916	if (RT_LIKELY( ClippedRect.w
2917	&& ClippedRect.x < VMSVGA_MAX_X
2918	&& ClippedRect.srcx < VMSVGA_MAX_X
2919	&& ClippedRect.h
2920	&& ClippedRect.y < VMSVGA_MAX_Y
2921	&& ClippedRect.srcy < VMSVGA_MAX_Y
2922	))
2923	{ /* likely */ }
2924	else
2925	continue;
2926
2927	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2928	{ /* likely */ }
2929	else
2930	ClippedRect.w = VMSVGA_MAX_Y;
2931	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2932	{ /* likely */ }
2933	else
2934	ClippedRect.w = VMSVGA_MAX_Y;
2935
2936
2937	/*
2938	* Source surface clipping (paranoia). Straight forward.
2939	*/
2940	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2941	{ /* likely */ }
2942	else
2943	continue;
2944	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2945	{ /* likely */ }
2946	else
2947	{
2948	AssertFailed(); /* remove if annoying. */
2949	ClippedRect.w = cxSurface - ClippedRect.srcx;
2950	}
2951
2952	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2953	{ /* likely */ }
2954	else
2955	continue;
2956	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2957	{ /* likely */ }
2958	else
2959	{
2960	AssertFailed(); /* remove if annoying. */
2961	ClippedRect.h = cySurface - ClippedRect.srcy;
2962	}
2963
2964	/*
2965	* Destination viewport clipping - real PITA.
2966	*
2967	* We have to take the following into account here:
2968	* - The source image is Y inverted.
2969	* - The destination framebuffer is in world and not window coordinates,
2970	* just like the source surface. This means working in the first quadrant.
2971	* - The viewport is in window coordinate, that is fourth quadrant and
2972	* negated Y values.
2973	* - The destination framebuffer is not scrolled, so we have to blit
2974	* what's visible into the top of the framebuffer.
2975	*
2976	*
2977	* To illustrate:
2978	*
2979	* source destination 0123456789
2980	* 8 ^---------- 8 ^---------- 0 ----------->
2981	* 7 \| \| 7 \| \| 1 \| \|
2982	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
2983	* 5 \| *** \| 5 \| * \| 3 \| * \|
2984	* 4 \| * \| => 4 \| * \| => 4 \| * \|
2985	* 3 \| * \| 3 \| * \| 5 \| * \|
2986	* 2 \| ******* \| 2 \| \| 6 \| \|
2987	* 1 \| \| 1 \| \| 7 \| \|
2988	* 0 -----------> 0 -----------> 8 v----------
2989	* 0123456789 0123456789 Destination window
2990	*
2991	* From the above, it follows that a destination viewport given in
2992	* window coordinates matches the source exactly when srcy = srcx = 0.
2993	*
2994	* Example (Y only):
2995	* ySrc = 0
2996	* yDst = 0
2997	* cyCopy = 9
2998	* cyScreen = cyCopy
2999	* cySurface >= cyCopy
3000	* yViewport = 5
3001	* cyViewport = 2 (i.e. '\| *** \|'
3002	* '\| \|' )
3003	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3004	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3005	*
3006	* We can see from the illustration that the final result should be:
3007	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3008	* DstRect = (0,2) (11, 4)
3009	*
3010	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3011	* easier to follow:
3012	* SrcRect = (0,5) (11, 7)
3013	*
3014	* From the top, Y values only:
3015	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3016	*
3017	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3018	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3019	* Copy.yDst += cyAdjust = 2;
3020	* Copy.ySrc = unchanged;
3021	* Copy.cx -= cyAdjust = 7;
3022	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3023	*
3024	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3025	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3026	* Copy.yDst = unchanged;
3027	* Copy.ySrc += cyAdjust = 5;
3028	* Copy.cx -= cyAdjust = 2;
3029	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3030	*
3031	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3032	* when the view is resized, moved and otherwise messed with,
3033	* the visible part of the framebuffer is actually the bottom
3034	* one. It's easy to adjust for this, just have to adjust the
3035	* destination rectangle such that yBottom is zero.
3036	*/
3037	/* X - no inversion, so kind of simple. */
3038	if (ClippedRect.x >= DstViewport.x)
3039	{
3040	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3041	{ /* typical */ }
3042	else if (ClippedRect.x < DstViewport.xRight)
3043	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3044	else
3045	continue;
3046	}
3047	else
3048	{
3049	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3050	if (cxAdjust < ClippedRect.w)
3051	{
3052	ClippedRect.w -= cxAdjust;
3053	ClippedRect.x += cxAdjust;
3054	ClippedRect.srcx += cxAdjust;
3055	}
3056	else
3057	continue;
3058
3059	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3060	{ /* typical */ }
3061	else
3062	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3063	}
3064
3065	/* Y - complicated, see above. */
3066	if (ClippedRect.y >= DstViewport.yLowWC)
3067	{
3068	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3069	{ /* typical */ }
3070	else if (ClippedRect.y < DstViewport.yHighWC)
3071	{
3072	/* adjustment #2 */
3073	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3074	ClippedRect.srcy += cyAdjust;
3075	ClippedRect.h -= cyAdjust;
3076	}
3077	else
3078	continue;
3079	}
3080	else
3081	{
3082	/* adjustment #1 */
3083	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3084	if (cyAdjust < ClippedRect.h)
3085	{
3086	ClippedRect.y += cyAdjust;
3087	ClippedRect.h -= cyAdjust;
3088	}
3089	else
3090	continue;
3091
3092	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3093	{ /* typical */ }
3094	else
3095	{
3096	/* adjustment #2 */
3097	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3098	ClippedRect.srcy += cyAdjust;
3099	ClippedRect.h -= cyAdjust;
3100	}
3101	}
3102
3103	/* Calc source rectangle with y flipping wrt destination. */
3104	RTRECT SrcRect;
3105	SrcRect.xLeft = ClippedRect.srcx;
3106	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3107	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3108	SrcRect.yTop = ClippedRect.srcy;
3109
3110	/* Calc destination rectangle. */
3111	RTRECT DstRect;
3112	DstRect.xLeft = ClippedRect.x;
3113	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3114	DstRect.yBottom = ClippedRect.y;
3115	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3116
3117	/* Adjust for viewport. */
3118	DstRect.xLeft -= DstViewport.x;
3119	DstRect.xRight -= DstViewport.x;
3120	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3121	DstRect.yTop -= DstRect.yBottom;
3122	DstRect.yBottom = 0;
3123	# else
3124	DstRect.yBottom += DstViewport.y;
3125	DstRect.yTop += DstViewport.y;
3126	# endif
3127
3128	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3129	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3130	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3131	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3132	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3133	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3134	}
3135
3136	#endif
3137
3138	/*
3139	* Flip the front and back buffers.
3140	*/
3141	#ifdef RT_OS_WINDOWS
3142	BOOL fRef = SwapBuffers(pContext->hdc);
3143	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3144	#elif defined(RT_OS_DARWIN)
3145	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3146	#else
3147	/* show the window if not already done */
3148	if (!pContext->fMapped)
3149	{
3150	XMapWindow(pState->display, pContext->window);
3151	pContext->fMapped = true;
3152	}
3153	/* now swap the buffers, i.e. display the rendering result */
3154	glXSwapBuffers(pState->display, pContext->window);
3155	#endif
3156
3157	/*
3158	* Now we can reset the frame buffer association. Doing it earlier means no
3159	* output on darwin.
3160	*/
3161	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3162	return VINF_SUCCESS;
3163	}
3164
3165	#ifdef RT_OS_LINUX
3166	/**
3167	* X11 event handling thread.
3168	*
3169	* @returns VINF_SUCCESS (ignored)
3170	* @param hThreadSelf thread handle
3171	* @param pvUser pointer to pState structure
3172	*/
3173	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3174	{
3175	RT_NOREF(hThreadSelf);
3176	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3177	while (!pState->bTerminate)
3178	{
3179	while (XPending(pState->display) > 0)
3180	{
3181	XEvent event;
3182	XNextEvent(pState->display, &event);
3183
3184	switch (event.type)
3185	{
3186	default:
3187	break;
3188	}
3189	}
3190	/* sleep for 16ms to not burn too many cycles */
3191	RTThreadSleep(16);
3192	}
3193	return VINF_SUCCESS;
3194	}
3195	#endif // RT_OS_LINUX
3196
3197
3198	/**
3199	* Create a new 3d context
3200	*
3201	* @returns VBox status code.
3202	* @param pThis VGA device instance data.
3203	* @param cid Context id
3204	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3205	*/
3206	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3207	{
3208	int rc;
3209	PVMSVGA3DCONTEXT pContext;
3210	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3211
3212	AssertReturn(pState, VERR_NO_MEMORY);
3213	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3214	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3215	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3216	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3217	#endif
3218
3219	Log(("vmsvga3dContextDefine id %x\n", cid));
3220	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3221	if (pState->idTestContext == SVGA_ID_INVALID)
3222	{
3223	pState->idTestContext = 207;
3224	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3225	AssertRCReturn(rc, rc);
3226	}
3227	#endif
3228
3229	if (cid == VMSVGA3D_SHARED_CTX_ID)
3230	pContext = &pState->SharedCtx;
3231	else
3232	{
3233	if (cid >= pState->cContexts)
3234	{
3235	/* Grow the array. */
3236	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3237	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3238	AssertReturn(pvNew, VERR_NO_MEMORY);
3239	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3240	while (pState->cContexts < cNew)
3241	{
3242	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3243	AssertReturn(pContext, VERR_NO_MEMORY);
3244	pContext->id = SVGA3D_INVALID_ID;
3245	pState->papContexts[pState->cContexts++] = pContext;
3246	}
3247	}
3248	/* If one already exists with this id, then destroy it now. */
3249	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3250	vmsvga3dContextDestroy(pThis, cid);
3251
3252	pContext = pState->papContexts[cid];
3253	}
3254
3255	/*
3256	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3257	*/
3258	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3259	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3260	{
3261	pSharedCtx = &pState->SharedCtx;
3262	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3263	{
3264	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3265	AssertLogRelRCReturn(rc, rc);
3266	}
3267	}
3268
3269	/*
3270	* Initialize the context.
3271	*/
3272	memset(pContext, 0, sizeof(*pContext));
3273	pContext->id = cid;
3274	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3275	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3276
3277	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3278	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3279	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3280	pContext->idFramebuffer = OPENGL_INVALID_ID;
3281	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3282	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3283
3284	rc = ShaderContextCreate(&pContext->pShaderContext);
3285	AssertRCReturn(rc, rc);
3286
3287	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3288	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3289
3290	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3291
3292	#ifdef RT_OS_WINDOWS
3293	/* Create a context window. */
3294	CREATESTRUCT cs;
3295	cs.lpCreateParams = NULL;
3296	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3297	# ifdef DEBUG_GFX_WINDOW
3298	cs.lpszName = (char *)RTMemAllocZ(256);
3299	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3300	# else
3301	cs.lpszName = NULL;
3302	# endif
3303	cs.lpszClass = 0;
3304	# ifdef DEBUG_GFX_WINDOW
3305	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3306	# else
3307	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3308	# endif
3309	cs.x = 0;
3310	cs.y = 0;
3311	cs.cx = pThis->svga.uWidth;
3312	cs.cy = pThis->svga.uHeight;
3313	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3314	cs.hMenu = NULL;
3315	cs.hInstance = pState->hInstance;
3316
3317	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3318	AssertRCReturn(rc, rc);
3319
3320	pContext->hdc = GetDC(pContext->hwnd);
3321	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3322
3323	PIXELFORMATDESCRIPTOR pfd = {
3324	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3325	1, /* version number */
3326	PFD_DRAW_TO_WINDOW \| /* support window */
3327	PFD_DOUBLEBUFFER \| /* support double buffering */
3328	PFD_SUPPORT_OPENGL, /* support OpenGL */
3329	PFD_TYPE_RGBA, /* RGBA type */
3330	24, /* 24-bit color depth */
3331	0, 0, 0, 0, 0, 0, /* color bits ignored */
3332	8, /* alpha buffer */
3333	0, /* shift bit ignored */
3334	0, /* no accumulation buffer */
3335	0, 0, 0, 0, /* accum bits ignored */
3336	16, /* set depth buffer */
3337	16, /* set stencil buffer */
3338	0, /* no auxiliary buffer */
3339	PFD_MAIN_PLANE, /* main layer */
3340	0, /* reserved */
3341	0, 0, 0 /* layer masks ignored */
3342	};
3343	int pixelFormat;
3344	BOOL ret;
3345
3346	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3347	/** @todo is this really necessary?? */
3348	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3349	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3350
3351	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3352	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3353
3354	pContext->hglrc = wglCreateContext(pContext->hdc);
3355	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3356
3357	if (pSharedCtx)
3358	{
3359	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3360	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3361	}
3362
3363	#elif defined(RT_OS_DARWIN)
3364	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3365
3366	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3367	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3368	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3369	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3370	pThis->svga.uWidth, pThis->svga.uHeight,
3371	pShareContext, pContext->fOtherProfile);
3372
3373	#else
3374	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3375
3376	if (pState->display == NULL)
3377	{
3378	/* get an X display and make sure we have glX 1.3 */
3379	pState->display = XOpenDisplay(0);
3380	Assert(pState->display);
3381	int glxMajor, glxMinor;
3382	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3383	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3384	/* start our X event handling thread */
3385	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3386	if (RT_FAILURE(rc))
3387	{
3388	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3389	return rc;
3390	}
3391	}
3392	int attrib[] =
3393	{
3394	GLX_RGBA,
3395	GLX_RED_SIZE, 1,
3396	GLX_GREEN_SIZE, 1,
3397	GLX_BLUE_SIZE, 1,
3398	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3399	GLX_DOUBLEBUFFER,
3400	None
3401	};
3402	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3403	XSetWindowAttributes swa;
3404	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3405	swa.border_pixel = 0;
3406	swa.background_pixel = 0;
3407	swa.event_mask = StructureNotifyMask \| ExposureMask;
3408	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3409	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3410	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3411	0, vi->depth, InputOutput,
3412	vi->visual, flags, &swa);
3413	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3414	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3415
3416	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3417
3418	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3419	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3420	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3421	#endif
3422
3423	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3424
3425	/* NULL during the first PowerOn call. */
3426	if (pState->ext.glGenFramebuffers)
3427	{
3428	/* Create a framebuffer object for this context. */
3429	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3431
3432	/* Bind the object to the framebuffer target. */
3433	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3435
3436	/* Create read and draw framebuffer objects for this context. */
3437	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3439
3440	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3442
3443	}
3444	#if 0
3445	/** @todo move to shader lib!!! */
3446	/* Clear the screen */
3447	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3448
3449	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3450	glClearIndex(0);
3451	glClearDepth(1);
3452	glClearStencil(0xffff);
3453	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3454	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3455	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3456	if (pState->ext.glProvokingVertex)
3457	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3458	/** @todo move to shader lib!!! */
3459	#endif
3460	return VINF_SUCCESS;
3461	}
3462
3463
3464	/**
3465	* Create a new 3d context
3466	*
3467	* @returns VBox status code.
3468	* @param pThis VGA device instance data.
3469	* @param cid Context id
3470	*/
3471	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3472	{
3473	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3474	}
3475
3476	/**
3477	* Destroys a 3d context.
3478	*
3479	* @returns VBox status code.
3480	* @param pThis VGA device instance data.
3481	* @param pContext The context to destroy.
3482	* @param cid Context id
3483	*/
3484	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3485	{
3486	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3487	AssertReturn(pState, VERR_NO_MEMORY);
3488	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3489	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3490	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3491
3492	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3493
3494	/* Destroy all leftover pixel shaders. */
3495	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3496	{
3497	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3498	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3499	}
3500	if (pContext->paPixelShader)
3501	RTMemFree(pContext->paPixelShader);
3502
3503	/* Destroy all leftover vertex shaders. */
3504	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3505	{
3506	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3507	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3508	}
3509	if (pContext->paVertexShader)
3510	RTMemFree(pContext->paVertexShader);
3511
3512	if (pContext->state.paVertexShaderConst)
3513	RTMemFree(pContext->state.paVertexShaderConst);
3514	if (pContext->state.paPixelShaderConst)
3515	RTMemFree(pContext->state.paPixelShaderConst);
3516
3517	if (pContext->pShaderContext)
3518	{
3519	int rc = ShaderContextDestroy(pContext->pShaderContext);
3520	AssertRC(rc);
3521	}
3522
3523	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3524	{
3525	/* Unbind the object from the framebuffer target. */
3526	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3527	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3528	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3530
3531	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3532	{
3533	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3534	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3535	}
3536	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3537	{
3538	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3539	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3540	}
3541	}
3542	#ifdef RT_OS_WINDOWS
3543	wglMakeCurrent(pContext->hdc, NULL);
3544	wglDeleteContext(pContext->hglrc);
3545	ReleaseDC(pContext->hwnd, pContext->hdc);
3546
3547	/* Destroy the window we've created. */
3548	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3549	AssertRC(rc);
3550	#elif defined(RT_OS_DARWIN)
3551	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3552	#elif defined(RT_OS_LINUX)
3553	glXMakeCurrent(pState->display, None, NULL);
3554	glXDestroyContext(pState->display, pContext->glxContext);
3555	XDestroyWindow(pState->display, pContext->window);
3556	#endif
3557
3558	memset(pContext, 0, sizeof(*pContext));
3559	pContext->id = SVGA3D_INVALID_ID;
3560
3561	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3562	return VINF_SUCCESS;
3563	}
3564
3565	/**
3566	* Destroy an existing 3d context
3567	*
3568	* @returns VBox status code.
3569	* @param pThis VGA device instance data.
3570	* @param cid Context id
3571	*/
3572	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3573	{
3574	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3575	AssertReturn(pState, VERR_WRONG_ORDER);
3576
3577	/*
3578	* Resolve the context and hand it to the common worker function.
3579	*/
3580	if ( cid < pState->cContexts
3581	&& pState->papContexts[cid]->id == cid)
3582	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3583
3584	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3585	return VINF_SUCCESS;
3586	}
3587
3588	/**
3589	* Worker for vmsvga3dChangeMode that resizes a context.
3590	*
3591	* @param pThis The VGA device instance data.
3592	* @param pState The VMSVGA3d state.
3593	* @param pContext The context.
3594	*/
3595	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3596	{
3597	#ifdef RT_OS_WINDOWS
3598	/* Resize the window. */
3599	CREATESTRUCT cs;
3600	RT_ZERO(cs);
3601	cs.cx = pThis->svga.uWidth;
3602	cs.cy = pThis->svga.uHeight;
3603	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3604	AssertRC(rc);
3605
3606	#elif defined(RT_OS_DARWIN)
3607	RT_NOREF(pState);
3608	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3609
3610	#elif defined(RT_OS_LINUX)
3611	XWindowChanges wc;
3612	wc.width = pThis->svga.uWidth;
3613	wc.height = pThis->svga.uHeight;
3614	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3615	#endif
3616	}
3617
3618	/* Handle resize */
3619	int vmsvga3dChangeMode(PVGASTATE pThis)
3620	{
3621	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3622	AssertReturn(pState, VERR_NO_MEMORY);
3623
3624	/* Resize the shared context too. */
3625	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3626	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3627
3628	/* Resize all active contexts. */
3629	for (uint32_t i = 0; i < pState->cContexts; i++)
3630	{
3631	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3632	if (pContext->id != SVGA3D_INVALID_ID)
3633	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3634	}
3635
3636	return VINF_SUCCESS;
3637	}
3638
3639
3640	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3641	{
3642	PVMSVGA3DCONTEXT pContext;
3643	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3644	AssertReturn(pState, VERR_NO_MEMORY);
3645	bool fModelViewChanged = false;
3646
3647	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3648
3649	if ( cid >= pState->cContexts
3650	\|\| pState->papContexts[cid]->id != cid)
3651	{
3652	Log(("vmsvga3dSetTransform invalid context id!\n"));
3653	return VERR_INVALID_PARAMETER;
3654	}
3655	pContext = pState->papContexts[cid];
3656	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3657
3658	/* Save this matrix for vm state save/restore. */
3659	pContext->state.aTransformState[type].fValid = true;
3660	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3661	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3662
3663	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)));
3664	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)));
3665	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)));
3666	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)));
3667
3668	switch (type)
3669	{
3670	case SVGA3D_TRANSFORM_VIEW:
3671	/* View * World = Model View */
3672	glMatrixMode(GL_MODELVIEW);
3673	glLoadMatrixf(matrix);
3674	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3675	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3676	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3677	fModelViewChanged = true;
3678	break;
3679
3680	case SVGA3D_TRANSFORM_PROJECTION:
3681	{
3682	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3683	AssertRCReturn(rc, rc);
3684	break;
3685	}
3686
3687	case SVGA3D_TRANSFORM_TEXTURE0:
3688	glMatrixMode(GL_TEXTURE);
3689	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3690	glLoadMatrixf(matrix);
3691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3692	break;
3693
3694	case SVGA3D_TRANSFORM_TEXTURE1:
3695	case SVGA3D_TRANSFORM_TEXTURE2:
3696	case SVGA3D_TRANSFORM_TEXTURE3:
3697	case SVGA3D_TRANSFORM_TEXTURE4:
3698	case SVGA3D_TRANSFORM_TEXTURE5:
3699	case SVGA3D_TRANSFORM_TEXTURE6:
3700	case SVGA3D_TRANSFORM_TEXTURE7:
3701	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3702	return VERR_INVALID_PARAMETER;
3703
3704	case SVGA3D_TRANSFORM_WORLD:
3705	/* View * World = Model View */
3706	glMatrixMode(GL_MODELVIEW);
3707	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3708	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3709	else
3710	glLoadIdentity();
3711	glMultMatrixf(matrix);
3712	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3713	fModelViewChanged = true;
3714	break;
3715
3716	case SVGA3D_TRANSFORM_WORLD1:
3717	case SVGA3D_TRANSFORM_WORLD2:
3718	case SVGA3D_TRANSFORM_WORLD3:
3719	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3720	return VERR_INVALID_PARAMETER;
3721
3722	default:
3723	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3724	return VERR_INVALID_PARAMETER;
3725	}
3726
3727	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3728	if (fModelViewChanged)
3729	{
3730	/* Reprogram the clip planes. */
3731	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3732	{
3733	if (pContext->state.aClipPlane[j].fValid == true)
3734	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3735	}
3736
3737	/* Reprogram the light data. */
3738	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3739	{
3740	if (pContext->state.aLightData[j].fValidData == true)
3741	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3742	}
3743	}
3744
3745	return VINF_SUCCESS;
3746	}
3747
3748	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3749	{
3750	PVMSVGA3DCONTEXT pContext;
3751	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3752	AssertReturn(pState, VERR_NO_MEMORY);
3753
3754	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3755
3756	if ( cid >= pState->cContexts
3757	\|\| pState->papContexts[cid]->id != cid)
3758	{
3759	Log(("vmsvga3dSetZRange invalid context id!\n"));
3760	return VERR_INVALID_PARAMETER;
3761	}
3762	pContext = pState->papContexts[cid];
3763	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3764
3765	pContext->state.zRange = zRange;
3766	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3767
3768	if (zRange.min < -1.0)
3769	zRange.min = -1.0;
3770	if (zRange.max > 1.0)
3771	zRange.max = 1.0;
3772
3773	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3774	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3775	return VINF_SUCCESS;
3776	}
3777
3778	/**
3779	* Convert SVGA blend op value to its OpenGL equivalent
3780	*/
3781	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3782	{
3783	switch (blendOp)
3784	{
3785	case SVGA3D_BLENDOP_ZERO:
3786	return GL_ZERO;
3787	case SVGA3D_BLENDOP_ONE:
3788	return GL_ONE;
3789	case SVGA3D_BLENDOP_SRCCOLOR:
3790	return GL_SRC_COLOR;
3791	case SVGA3D_BLENDOP_INVSRCCOLOR:
3792	return GL_ONE_MINUS_SRC_COLOR;
3793	case SVGA3D_BLENDOP_SRCALPHA:
3794	return GL_SRC_ALPHA;
3795	case SVGA3D_BLENDOP_INVSRCALPHA:
3796	return GL_ONE_MINUS_SRC_ALPHA;
3797	case SVGA3D_BLENDOP_DESTALPHA:
3798	return GL_DST_ALPHA;
3799	case SVGA3D_BLENDOP_INVDESTALPHA:
3800	return GL_ONE_MINUS_DST_ALPHA;
3801	case SVGA3D_BLENDOP_DESTCOLOR:
3802	return GL_DST_COLOR;
3803	case SVGA3D_BLENDOP_INVDESTCOLOR:
3804	return GL_ONE_MINUS_DST_COLOR;
3805	case SVGA3D_BLENDOP_SRCALPHASAT:
3806	return GL_SRC_ALPHA_SATURATE;
3807	case SVGA3D_BLENDOP_BLENDFACTOR:
3808	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3809	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3810	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3811	default:
3812	AssertFailed();
3813	return GL_ONE;
3814	}
3815	}
3816
3817	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3818	{
3819	switch (blendEq)
3820	{
3821	case SVGA3D_BLENDEQ_ADD:
3822	return GL_FUNC_ADD;
3823	case SVGA3D_BLENDEQ_SUBTRACT:
3824	return GL_FUNC_SUBTRACT;
3825	case SVGA3D_BLENDEQ_REVSUBTRACT:
3826	return GL_FUNC_REVERSE_SUBTRACT;
3827	case SVGA3D_BLENDEQ_MINIMUM:
3828	return GL_MIN;
3829	case SVGA3D_BLENDEQ_MAXIMUM:
3830	return GL_MAX;
3831	default:
3832	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3833	return GL_FUNC_ADD;
3834	}
3835	}
3836
3837	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3838	{
3839	switch (cmpFunc)
3840	{
3841	case SVGA3D_CMP_NEVER:
3842	return GL_NEVER;
3843	case SVGA3D_CMP_LESS:
3844	return GL_LESS;
3845	case SVGA3D_CMP_EQUAL:
3846	return GL_EQUAL;
3847	case SVGA3D_CMP_LESSEQUAL:
3848	return GL_LEQUAL;
3849	case SVGA3D_CMP_GREATER:
3850	return GL_GREATER;
3851	case SVGA3D_CMP_NOTEQUAL:
3852	return GL_NOTEQUAL;
3853	case SVGA3D_CMP_GREATEREQUAL:
3854	return GL_GEQUAL;
3855	case SVGA3D_CMP_ALWAYS:
3856	return GL_ALWAYS;
3857	default:
3858	AssertFailed();
3859	return GL_LESS;
3860	}
3861	}
3862
3863	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3864	{
3865	switch (stencilOp)
3866	{
3867	case SVGA3D_STENCILOP_KEEP:
3868	return GL_KEEP;
3869	case SVGA3D_STENCILOP_ZERO:
3870	return GL_ZERO;
3871	case SVGA3D_STENCILOP_REPLACE:
3872	return GL_REPLACE;
3873	case SVGA3D_STENCILOP_INCRSAT:
3874	return GL_INCR_WRAP;
3875	case SVGA3D_STENCILOP_DECRSAT:
3876	return GL_DECR_WRAP;
3877	case SVGA3D_STENCILOP_INVERT:
3878	return GL_INVERT;
3879	case SVGA3D_STENCILOP_INCR:
3880	return GL_INCR;
3881	case SVGA3D_STENCILOP_DECR:
3882	return GL_DECR;
3883	default:
3884	AssertFailed();
3885	return GL_KEEP;
3886	}
3887	}
3888
3889	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3890	{
3891	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3892	PVMSVGA3DCONTEXT pContext;
3893	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3894	AssertReturn(pState, VERR_NO_MEMORY);
3895
3896	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3897
3898	if ( cid >= pState->cContexts
3899	\|\| pState->papContexts[cid]->id != cid)
3900	{
3901	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3902	return VERR_INVALID_PARAMETER;
3903	}
3904	pContext = pState->papContexts[cid];
3905	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3906
3907	for (unsigned i = 0; i < cRenderStates; i++)
3908	{
3909	GLenum enableCap = ~(GLenum)0;
3910	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3911	/* Save the render state for vm state saving. */
3912	if (pRenderState[i].state < SVGA3D_RS_MAX)
3913	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3914
3915	switch (pRenderState[i].state)
3916	{
3917	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3918	enableCap = GL_DEPTH_TEST;
3919	val = pRenderState[i].uintValue;
3920	break;
3921
3922	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3923	glDepthMask(!!pRenderState[i].uintValue);
3924	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3925	break;
3926
3927	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3928	enableCap = GL_ALPHA_TEST;
3929	val = pRenderState[i].uintValue;
3930	break;
3931
3932	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3933	enableCap = GL_DITHER;
3934	val = pRenderState[i].uintValue;
3935	break;
3936
3937	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3938	enableCap = GL_FOG;
3939	val = pRenderState[i].uintValue;
3940	break;
3941
3942	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3943	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3944	break;
3945
3946	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3947	enableCap = GL_LIGHTING;
3948	val = pRenderState[i].uintValue;
3949	break;
3950
3951	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3952	/* not applicable */
3953	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3954	break;
3955
3956	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3957	enableCap = GL_POINT_SPRITE_ARB;
3958	val = pRenderState[i].uintValue;
3959	break;
3960
3961	case SVGA3D_RS_POINTSIZE: /* float */
3962	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3963	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3964	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3965	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3966	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3967
3968	glPointSize(pRenderState[i].floatValue);
3969	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3970	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3971	break;
3972
3973	case SVGA3D_RS_POINTSIZEMIN: /* float */
3974	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3975	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3976	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3977	break;
3978
3979	case SVGA3D_RS_POINTSIZEMAX: /* float */
3980	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3981	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3982	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3983	break;
3984
3985	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3986	case SVGA3D_RS_POINTSCALE_A: /* float */
3987	case SVGA3D_RS_POINTSCALE_B: /* float */
3988	case SVGA3D_RS_POINTSCALE_C: /* float */
3989	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3990	break;
3991
3992	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3993	{
3994	GLfloat color[4]; /* red, green, blue, alpha */
3995
3996	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3997
3998	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3999	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4000	break;
4001	}
4002
4003	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4004	{
4005	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4006	for (uint32_t j = 0; j <= 5; j++)
4007	{
4008	if (pRenderState[i].uintValue & RT_BIT(j))
4009	glEnable(GL_CLIP_PLANE0 + j);
4010	else
4011	glDisable(GL_CLIP_PLANE0 + j);
4012	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4013	}
4014	break;
4015	}
4016
4017	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4018	{
4019	GLfloat color[4]; /* red, green, blue, alpha */
4020
4021	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4022
4023	glFogfv(GL_FOG_COLOR, color);
4024	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4025	break;
4026	}
4027
4028	case SVGA3D_RS_FOGSTART: /* float */
4029	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4031	break;
4032
4033	case SVGA3D_RS_FOGEND: /* float */
4034	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4036	break;
4037
4038	case SVGA3D_RS_FOGDENSITY: /* float */
4039	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4041	break;
4042
4043	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4044	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4046	break;
4047
4048	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4049	{
4050	SVGA3dFogMode mode;
4051	mode.uintValue = pRenderState[i].uintValue;
4052
4053	enableCap = GL_FOG_MODE;
4054	switch (mode.s.function)
4055	{
4056	case SVGA3D_FOGFUNC_EXP:
4057	val = GL_EXP;
4058	break;
4059	case SVGA3D_FOGFUNC_EXP2:
4060	val = GL_EXP2;
4061	break;
4062	case SVGA3D_FOGFUNC_LINEAR:
4063	val = GL_LINEAR;
4064	break;
4065	default:
4066	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4067	break;
4068	}
4069
4070	/** @todo how to switch between vertex and pixel fog modes??? */
4071	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4072	#if 0
4073	/* The fog type determines the render state. */
4074	switch (mode.s.type)
4075	{
4076	case SVGA3D_FOGTYPE_VERTEX:
4077	renderState = D3DRS_FOGVERTEXMODE;
4078	break;
4079	case SVGA3D_FOGTYPE_PIXEL:
4080	renderState = D3DRS_FOGTABLEMODE;
4081	break;
4082	default:
4083	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4084	break;
4085	}
4086	#endif
4087
4088	/* Set the fog base to depth or range. */
4089	switch (mode.s.base)
4090	{
4091	case SVGA3D_FOGBASE_DEPTHBASED:
4092	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4093	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4094	break;
4095	case SVGA3D_FOGBASE_RANGEBASED:
4096	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4097	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4098	break;
4099	default:
4100	/* ignore */
4101	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4102	break;
4103	}
4104	break;
4105	}
4106
4107	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4108	{
4109	SVGA3dFillMode mode;
4110
4111	mode.uintValue = pRenderState[i].uintValue;
4112
4113	switch (mode.s.mode)
4114	{
4115	case SVGA3D_FILLMODE_POINT:
4116	val = GL_POINT;
4117	break;
4118	case SVGA3D_FILLMODE_LINE:
4119	val = GL_LINE;
4120	break;
4121	case SVGA3D_FILLMODE_FILL:
4122	val = GL_FILL;
4123	break;
4124	default:
4125	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4126	break;
4127	}
4128	/* @note only front and back faces */
4129	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4130	glPolygonMode(GL_FRONT_AND_BACK, val);
4131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4132	break;
4133	}
4134
4135	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4136	switch (pRenderState[i].uintValue)
4137	{
4138	case SVGA3D_SHADEMODE_FLAT:
4139	val = GL_FLAT;
4140	break;
4141
4142	case SVGA3D_SHADEMODE_SMOOTH:
4143	val = GL_SMOOTH;
4144	break;
4145
4146	default:
4147	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4148	break;
4149	}
4150
4151	glShadeModel(val);
4152	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4153	break;
4154
4155	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4156	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4157	/** @todo */
4158	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4159	/*
4160	renderState = D3DRS_LINEPATTERN;
4161	val = pRenderState[i].uintValue;
4162	*/
4163	break;
4164
4165	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4166	enableCap = GL_LINE_SMOOTH;
4167	val = pRenderState[i].uintValue;
4168	break;
4169
4170	case SVGA3D_RS_LINEWIDTH: /* float */
4171	glLineWidth(pRenderState[i].floatValue);
4172	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4173	break;
4174
4175	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4176	{
4177	/* Refresh the blending state based on the new enable setting. */
4178	SVGA3dRenderState renderstate[2];
4179
4180	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4181	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4182	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4183	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4184
4185	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4186	AssertRCReturn(rc, rc);
4187
4188	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4189	continue; /* ignore if blend is already enabled */
4190	/* no break */
4191	}
4192
4193	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4194	enableCap = GL_BLEND;
4195	val = pRenderState[i].uintValue;
4196	break;
4197
4198	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4199	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4200	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4201	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4202	{
4203	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4204	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4205
4206	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4207	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4208	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4209	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4210	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4211	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4212	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4213	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4214
4215	switch (pRenderState[i].state)
4216	{
4217	case SVGA3D_RS_SRCBLEND:
4218	srcRGB = blendop;
4219	break;
4220	case SVGA3D_RS_DSTBLEND:
4221	dstRGB = blendop;
4222	break;
4223	case SVGA3D_RS_SRCBLENDALPHA:
4224	srcAlpha = blendop;
4225	break;
4226	case SVGA3D_RS_DSTBLENDALPHA:
4227	dstAlpha = blendop;
4228	break;
4229	default:
4230	/* not possible; shut up gcc */
4231	AssertFailed();
4232	break;
4233	}
4234
4235	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4236	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4237	else
4238	glBlendFunc(srcRGB, dstRGB);
4239	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4240	break;
4241	}
4242
4243	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4244	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4245	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4246	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4247	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4248	else
4249	{
4250	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4251	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4252	#else
4253	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4254	#endif
4255	}
4256	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4257	break;
4258
4259	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4260	{
4261	GLfloat red, green, blue, alpha;
4262
4263	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4264
4265	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4266	glBlendColor(red, green, blue, alpha);
4267	#else
4268	pState->ext.glBlendColor(red, green, blue, alpha);
4269	#endif
4270	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4271	break;
4272	}
4273
4274	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4275	{
4276	GLenum mode = GL_BACK; /* default for OpenGL */
4277
4278	switch (pRenderState[i].uintValue)
4279	{
4280	case SVGA3D_FACE_NONE:
4281	break;
4282	case SVGA3D_FACE_FRONT:
4283	mode = GL_FRONT;
4284	break;
4285	case SVGA3D_FACE_BACK:
4286	mode = GL_BACK;
4287	break;
4288	case SVGA3D_FACE_FRONT_BACK:
4289	mode = GL_FRONT_AND_BACK;
4290	break;
4291	default:
4292	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4293	break;
4294	}
4295	enableCap = GL_CULL_FACE;
4296	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4297	{
4298	glCullFace(mode);
4299	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4300	val = 1;
4301	}
4302	else
4303	val = 0;
4304	break;
4305	}
4306
4307	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4308	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4309	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4310	break;
4311
4312	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4313	{
4314	GLclampf ref;
4315
4316	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4317	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4318	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4319	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4320	break;
4321	}
4322
4323	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4324	{
4325	GLint func;
4326
4327	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4328	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4329	glAlphaFunc(func, pRenderState[i].floatValue);
4330	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4331	break;
4332	}
4333
4334	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4335	enableCap = GL_STENCIL_TEST;
4336	val = pRenderState[i].uintValue;
4337	break;
4338
4339	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4340	case SVGA3D_RS_STENCILREF: /* uint32_t */
4341	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4342	{
4343	GLint func, ref;
4344	GLuint mask;
4345
4346	glGetIntegerv(GL_STENCIL_FUNC, &func);
4347	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4348	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4349	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4350	glGetIntegerv(GL_STENCIL_REF, &ref);
4351	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4352
4353	switch (pRenderState[i].state)
4354	{
4355	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4356	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4357	break;
4358
4359	case SVGA3D_RS_STENCILREF: /* uint32_t */
4360	ref = pRenderState[i].uintValue;
4361	break;
4362
4363	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4364	mask = pRenderState[i].uintValue;
4365	break;
4366
4367	default:
4368	/* not possible; shut up gcc */
4369	AssertFailed();
4370	break;
4371	}
4372
4373	glStencilFunc(func, ref, mask);
4374	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4375	break;
4376	}
4377
4378	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4379	glStencilMask(pRenderState[i].uintValue);
4380	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4381	break;
4382
4383	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4384	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4385	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4386	{
4387	GLint sfail, dpfail, dppass;
4388	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4389
4390	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4391	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4392	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4393	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4394	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4395	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4396
4397	switch (pRenderState[i].state)
4398	{
4399	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4400	sfail = stencilop;
4401	break;
4402	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4403	dpfail = stencilop;
4404	break;
4405	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4406	dppass = stencilop;
4407	break;
4408	default:
4409	/* not possible; shut up gcc */
4410	AssertFailed();
4411	break;
4412	}
4413	glStencilOp(sfail, dpfail, dppass);
4414	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4415	break;
4416	}
4417
4418	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4419	/* @note GL_EXT_stencil_two_side required! */
4420	if (pState->ext.fEXT_stencil_two_side)
4421	{
4422	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4423	val = pRenderState[i].uintValue;
4424	}
4425	else
4426	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4427	break;
4428
4429	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4430	{
4431	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4432	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4433	*/
4434	GLint ref;
4435	GLuint mask;
4436
4437	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4439	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4440	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4441
4442	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4443	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4444	break;
4445	}
4446
4447	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4448	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4449	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4450	{
4451	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4452	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4453	*/
4454	GLint sfail, dpfail, dppass;
4455	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4456
4457	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4458	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4459	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4460	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4461	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4462	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4463
4464	switch (pRenderState[i].state)
4465	{
4466	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4467	sfail = stencilop;
4468	break;
4469	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4470	dpfail = stencilop;
4471	break;
4472	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4473	dppass = stencilop;
4474	break;
4475	default:
4476	/* not possible; shut up gcc */
4477	AssertFailed();
4478	break;
4479	}
4480	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4481	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4482	break;
4483	}
4484
4485	case SVGA3D_RS_ZBIAS: /* float */
4486	/** @todo unknown meaning; depth bias is not identical
4487	renderState = D3DRS_DEPTHBIAS;
4488	val = pRenderState[i].uintValue;
4489	*/
4490	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4491	break;
4492
4493	case SVGA3D_RS_DEPTHBIAS: /* float */
4494	{
4495	GLfloat factor;
4496
4497	/** @todo not sure if the d3d & ogl definitions are identical. */
4498
4499	/* Do not change the factor part. */
4500	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4502
4503	glPolygonOffset(factor, pRenderState[i].floatValue);
4504	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4505	break;
4506	}
4507
4508	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4509	{
4510	GLfloat units;
4511
4512	/** @todo not sure if the d3d & ogl definitions are identical. */
4513
4514	/* Do not change the factor part. */
4515	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4516	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4517
4518	glPolygonOffset(pRenderState[i].floatValue, units);
4519	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4520	break;
4521	}
4522
4523	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4524	{
4525	GLboolean red, green, blue, alpha;
4526	SVGA3dColorMask mask;
4527
4528	mask.uintValue = pRenderState[i].uintValue;
4529
4530	red = mask.s.red;
4531	green = mask.s.green;
4532	blue = mask.s.blue;
4533	alpha = mask.s.alpha;
4534
4535	glColorMask(red, green, blue, alpha);
4536	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4537	break;
4538	}
4539
4540	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4541	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4542	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4543	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4544	break;
4545
4546	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4547	enableCap = GL_SCISSOR_TEST;
4548	val = pRenderState[i].uintValue;
4549	break;
4550
4551	#if 0
4552	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4553	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4554	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4555	val = pRenderState[i].uintValue;
4556	break;
4557
4558	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4559	renderState = D3DRS_SPECULARMATERIALSOURCE;
4560	val = pRenderState[i].uintValue;
4561	break;
4562
4563	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4564	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4565	val = pRenderState[i].uintValue;
4566	break;
4567
4568	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4569	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4570	val = pRenderState[i].uintValue;
4571	break;
4572	#endif
4573
4574	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4575	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4576	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4577	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4578	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4579	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4580	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4581	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4582	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4583	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4584	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4585	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4586	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4587	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4588	break;
4589
4590	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4591	case SVGA3D_RS_TWEENFACTOR: /* float */
4592	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4593	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4594	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4595	break;
4596
4597	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4598	enableCap = GL_MULTISAMPLE;
4599	val = pRenderState[i].uintValue;
4600	break;
4601
4602	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4603	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4604	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4605	break;
4606
4607	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4608	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4609	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4610	/*
4611	renderState = D3DRS_COORDINATETYPE;
4612	val = pRenderState[i].uintValue;
4613	*/
4614	break;
4615
4616	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4617	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4618	/* Invert the selected mode because of y-inversion (?) */
4619	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4620	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4621	break;
4622
4623	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4624	//AssertFailed();
4625	/*
4626	D3DRS_SRGBWRITEENABLE ??
4627	renderState = D3DRS_OUTPUTGAMMA;
4628	val = pRenderState[i].uintValue;
4629	*/
4630	break;
4631
4632	#if 0
4633
4634	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4635	//AssertFailed();
4636	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4637	val = pRenderState[i].uintValue;
4638	break;
4639
4640	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4641	renderState = D3DRS_TEXTUREFACTOR;
4642	val = pRenderState[i].uintValue;
4643	break;
4644
4645	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4646	renderState = D3DRS_LOCALVIEWER;
4647	val = pRenderState[i].uintValue;
4648	break;
4649
4650	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4651	AssertFailed();
4652	/*
4653	renderState = D3DRS_ZVISIBLE;
4654	val = pRenderState[i].uintValue;
4655	*/
4656	break;
4657
4658	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4659	renderState = D3DRS_CLIPPING;
4660	val = pRenderState[i].uintValue;
4661	break;
4662
4663	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4664	glTexParameter GL_TEXTURE_WRAP_S
4665	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4666	renderState = D3DRS_WRAP0;
4667	val = pRenderState[i].uintValue;
4668	break;
4669
4670	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4671	glTexParameter GL_TEXTURE_WRAP_T
4672	renderState = D3DRS_WRAP1;
4673	val = pRenderState[i].uintValue;
4674	break;
4675
4676	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4677	glTexParameter GL_TEXTURE_WRAP_R
4678	renderState = D3DRS_WRAP2;
4679	val = pRenderState[i].uintValue;
4680	break;
4681
4682
4683	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4684	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4685	val = pRenderState[i].uintValue;
4686	break;
4687
4688
4689	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4690	renderState = D3DRS_BLENDOPALPHA;
4691	val = pRenderState[i].uintValue;
4692	break;
4693
4694	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4695	AssertFailed();
4696	/*
4697	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4698	val = pRenderState[i].uintValue;
4699	*/
4700	break;
4701
4702	#endif
4703	default:
4704	AssertFailed();
4705	break;
4706	}
4707
4708	if (enableCap != ~(GLenum)0)
4709	{
4710	if (val)
4711	glEnable(enableCap);
4712	else
4713	glDisable(enableCap);
4714	}
4715	}
4716
4717	return VINF_SUCCESS;
4718	}
4719
4720	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4721	{
4722	PVMSVGA3DCONTEXT pContext;
4723	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4724	PVMSVGA3DSURFACE pRenderTarget;
4725
4726	AssertReturn(pState, VERR_NO_MEMORY);
4727	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4728	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4729
4730	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4731
4732	if ( cid >= pState->cContexts
4733	\|\| pState->papContexts[cid]->id != cid)
4734	{
4735	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4736	return VERR_INVALID_PARAMETER;
4737	}
4738	pContext = pState->papContexts[cid];
4739	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4740
4741	/* Save for vm state save/restore. */
4742	pContext->state.aRenderTargets[type] = target.sid;
4743
4744	if (target.sid == SVGA3D_INVALID_ID)
4745	{
4746	/* Disable render target. */
4747	switch (type)
4748	{
4749	case SVGA3D_RT_DEPTH:
4750	case SVGA3D_RT_STENCIL:
4751	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4752	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4753	break;
4754
4755	case SVGA3D_RT_COLOR0:
4756	case SVGA3D_RT_COLOR1:
4757	case SVGA3D_RT_COLOR2:
4758	case SVGA3D_RT_COLOR3:
4759	case SVGA3D_RT_COLOR4:
4760	case SVGA3D_RT_COLOR5:
4761	case SVGA3D_RT_COLOR6:
4762	case SVGA3D_RT_COLOR7:
4763	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4764	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4765	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4766	break;
4767
4768	default:
4769	AssertFailedReturn(VERR_INVALID_PARAMETER);
4770	}
4771	return VINF_SUCCESS;
4772	}
4773
4774	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4775	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4776	pRenderTarget = pState->papSurfaces[target.sid];
4777
4778	switch (type)
4779	{
4780	case SVGA3D_RT_DEPTH:
4781	case SVGA3D_RT_STENCIL:
4782	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4783	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4784	{
4785	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
4786	pContext = &pState->SharedCtx;
4787	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4788
4789	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4790	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4791
4792	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4794
4795	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4796	pRenderTarget->internalFormatGL,
4797	pRenderTarget->pMipmapLevels[0].size.width,
4798	pRenderTarget->pMipmapLevels[0].size.height);
4799	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4800
4801	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4802	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4803
4804	pContext = pState->papContexts[cid];
4805	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4806	pRenderTarget->idWeakContextAssociation = cid;
4807	}
4808
4809	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4810	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4811	Assert(!pRenderTarget->fDirty);
4812	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4813
4814	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4815
4816	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4817	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4818	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4819	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4820	break;
4821
4822	case SVGA3D_RT_COLOR0:
4823	case SVGA3D_RT_COLOR1:
4824	case SVGA3D_RT_COLOR2:
4825	case SVGA3D_RT_COLOR3:
4826	case SVGA3D_RT_COLOR4:
4827	case SVGA3D_RT_COLOR5:
4828	case SVGA3D_RT_COLOR6:
4829	case SVGA3D_RT_COLOR7:
4830	{
4831	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4832	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4833	{
4834	Log(("vmsvga3dSetRenderTarget: create texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n", target.sid, pRenderTarget->flags, pRenderTarget->format));
4835	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4836	AssertRCReturn(rc, rc);
4837	}
4838
4839	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4840	Assert(!pRenderTarget->fDirty);
4841
4842	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4843
4844	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4845	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4846
4847	pContext->sidRenderTarget = target.sid;
4848
4849	#ifdef DEBUG
4850	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4851	if (status != GL_FRAMEBUFFER_COMPLETE)
4852	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4853	#endif
4854	/** @todo use glDrawBuffers too? */
4855	break;
4856	}
4857
4858	default:
4859	AssertFailedReturn(VERR_INVALID_PARAMETER);
4860	}
4861
4862	return VINF_SUCCESS;
4863	}
4864
4865	#if 0
4866	/**
4867	* Convert SVGA texture combiner value to its D3D equivalent
4868	*/
4869	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4870	{
4871	switch (value)
4872	{
4873	case SVGA3D_TC_DISABLE:
4874	return D3DTOP_DISABLE;
4875	case SVGA3D_TC_SELECTARG1:
4876	return D3DTOP_SELECTARG1;
4877	case SVGA3D_TC_SELECTARG2:
4878	return D3DTOP_SELECTARG2;
4879	case SVGA3D_TC_MODULATE:
4880	return D3DTOP_MODULATE;
4881	case SVGA3D_TC_ADD:
4882	return D3DTOP_ADD;
4883	case SVGA3D_TC_ADDSIGNED:
4884	return D3DTOP_ADDSIGNED;
4885	case SVGA3D_TC_SUBTRACT:
4886	return D3DTOP_SUBTRACT;
4887	case SVGA3D_TC_BLENDTEXTUREALPHA:
4888	return D3DTOP_BLENDTEXTUREALPHA;
4889	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4890	return D3DTOP_BLENDDIFFUSEALPHA;
4891	case SVGA3D_TC_BLENDCURRENTALPHA:
4892	return D3DTOP_BLENDCURRENTALPHA;
4893	case SVGA3D_TC_BLENDFACTORALPHA:
4894	return D3DTOP_BLENDFACTORALPHA;
4895	case SVGA3D_TC_MODULATE2X:
4896	return D3DTOP_MODULATE2X;
4897	case SVGA3D_TC_MODULATE4X:
4898	return D3DTOP_MODULATE4X;
4899	case SVGA3D_TC_DSDT:
4900	AssertFailed(); /** @todo ??? */
4901	return D3DTOP_DISABLE;
4902	case SVGA3D_TC_DOTPRODUCT3:
4903	return D3DTOP_DOTPRODUCT3;
4904	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4905	return D3DTOP_BLENDTEXTUREALPHAPM;
4906	case SVGA3D_TC_ADDSIGNED2X:
4907	return D3DTOP_ADDSIGNED2X;
4908	case SVGA3D_TC_ADDSMOOTH:
4909	return D3DTOP_ADDSMOOTH;
4910	case SVGA3D_TC_PREMODULATE:
4911	return D3DTOP_PREMODULATE;
4912	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4913	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4914	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4915	return D3DTOP_MODULATECOLOR_ADDALPHA;
4916	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4917	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4918	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4919	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4920	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4921	return D3DTOP_BUMPENVMAPLUMINANCE;
4922	case SVGA3D_TC_MULTIPLYADD:
4923	return D3DTOP_MULTIPLYADD;
4924	case SVGA3D_TC_LERP:
4925	return D3DTOP_LERP;
4926	default:
4927	AssertFailed();
4928	return D3DTOP_DISABLE;
4929	}
4930	}
4931
4932	/**
4933	* Convert SVGA texture arg data value to its D3D equivalent
4934	*/
4935	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4936	{
4937	switch (value)
4938	{
4939	case SVGA3D_TA_CONSTANT:
4940	return D3DTA_CONSTANT;
4941	case SVGA3D_TA_PREVIOUS:
4942	return D3DTA_CURRENT; /* current = previous */
4943	case SVGA3D_TA_DIFFUSE:
4944	return D3DTA_DIFFUSE;
4945	case SVGA3D_TA_TEXTURE:
4946	return D3DTA_TEXTURE;
4947	case SVGA3D_TA_SPECULAR:
4948	return D3DTA_SPECULAR;
4949	default:
4950	AssertFailed();
4951	return 0;
4952	}
4953	}
4954
4955	/**
4956	* Convert SVGA texture transform flag value to its D3D equivalent
4957	*/
4958	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4959	{
4960	switch (value)
4961	{
4962	case SVGA3D_TEX_TRANSFORM_OFF:
4963	return D3DTTFF_DISABLE;
4964	case SVGA3D_TEX_TRANSFORM_S:
4965	return D3DTTFF_COUNT1; /** @todo correct? */
4966	case SVGA3D_TEX_TRANSFORM_T:
4967	return D3DTTFF_COUNT2; /** @todo correct? */
4968	case SVGA3D_TEX_TRANSFORM_R:
4969	return D3DTTFF_COUNT3; /** @todo correct? */
4970	case SVGA3D_TEX_TRANSFORM_Q:
4971	return D3DTTFF_COUNT4; /** @todo correct? */
4972	case SVGA3D_TEX_PROJECTED:
4973	return D3DTTFF_PROJECTED;
4974	default:
4975	AssertFailed();
4976	return 0;
4977	}
4978	}
4979	#endif
4980
4981	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4982	{
4983	switch (value)
4984	{
4985	case SVGA3D_TEX_ADDRESS_WRAP:
4986	return GL_REPEAT;
4987	case SVGA3D_TEX_ADDRESS_MIRROR:
4988	return GL_MIRRORED_REPEAT;
4989	case SVGA3D_TEX_ADDRESS_CLAMP:
4990	return GL_CLAMP_TO_EDGE;
4991	case SVGA3D_TEX_ADDRESS_BORDER:
4992	return GL_CLAMP_TO_BORDER;
4993	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4994	AssertFailed();
4995	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4996
4997	case SVGA3D_TEX_ADDRESS_EDGE:
4998	case SVGA3D_TEX_ADDRESS_INVALID:
4999	default:
5000	AssertFailed();
5001	return GL_REPEAT; /* default */
5002	}
5003	}
5004
5005	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5006	{
5007	switch (value)
5008	{
5009	case SVGA3D_TEX_FILTER_NONE:
5010	case SVGA3D_TEX_FILTER_LINEAR:
5011	return GL_LINEAR;
5012	case SVGA3D_TEX_FILTER_NEAREST:
5013	return GL_NEAREST;
5014	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5015	/** @todo */
5016	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5017	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5018	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5019	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5020	default:
5021	AssertFailed();
5022	return GL_LINEAR; /* default */
5023	}
5024	}
5025
5026	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5027	{
5028	/* flip the red and blue bytes */
5029	uint8_t blue = value & 0xff;
5030	uint8_t red = (value >> 16) & 0xff;
5031	return (value & 0xff00ff00) \| red \| (blue << 16);
5032	}
5033
5034	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5035	{
5036	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5037	GLenum currentStage = ~(GLenum)0;
5038	PVMSVGA3DCONTEXT pContext;
5039	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5040	AssertReturn(pState, VERR_NO_MEMORY);
5041
5042	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5043
5044	if ( cid >= pState->cContexts
5045	\|\| pState->papContexts[cid]->id != cid)
5046	{
5047	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5048	return VERR_INVALID_PARAMETER;
5049	}
5050	pContext = pState->papContexts[cid];
5051	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5052
5053	for (unsigned i = 0; i < cTextureStates; i++)
5054	{
5055	GLenum textureType = ~(GLenum)0;
5056	#if 0
5057	GLenum samplerType = ~(GLenum)0;
5058	#endif
5059
5060	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));
5061	/* Record the texture state for vm state saving. */
5062	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5063	&& pTextureState[i].name < SVGA3D_TS_MAX)
5064	{
5065	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5066	}
5067
5068	/* Active the right texture unit for subsequent texture state changes. */
5069	if (pTextureState[i].stage != currentStage \|\| i == 0)
5070	{
5071	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5072	* size of aSidActiveTexture and for binding/unbinding we cannot exceed it. */
5073	if (pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE)
5074	{
5075	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5076	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5077	currentStage = pTextureState[i].stage;
5078	}
5079	else
5080	{
5081	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5082	continue;
5083	}
5084	}
5085
5086	switch (pTextureState[i].name)
5087	{
5088	case SVGA3D_TS_BUMPENVMAT00: /* float */
5089	case SVGA3D_TS_BUMPENVMAT01: /* float */
5090	case SVGA3D_TS_BUMPENVMAT10: /* float */
5091	case SVGA3D_TS_BUMPENVMAT11: /* float */
5092	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5093	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5094	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5095	break;
5096
5097	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5098	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5099	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5100	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5101	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5102	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5103	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5104	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5105	/** @todo not used by MesaGL */
5106	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5107	break;
5108	#if 0
5109
5110	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5111	textureType = D3DTSS_TEXCOORDINDEX;
5112	val = pTextureState[i].value;
5113	break;
5114
5115	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5116	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5117	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5118	break;
5119	#endif
5120
5121	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5122	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5123	{
5124	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5125	currentStage, pTextureState[i].value, pContext->aSidActiveTexture[currentStage]));
5126
5127	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5128	/* Unselect the currently associated texture. */
5129	glBindTexture(GL_TEXTURE_2D, 0);
5130	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5131	/* Necessary for the fixed pipeline. */
5132	glDisable(GL_TEXTURE_2D);
5133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5134	}
5135	else
5136	{
5137	uint32_t sid = pTextureState[i].value;
5138
5139	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5140	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5141
5142	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5143
5144	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5145	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width,
5146	pSurface->pMipmapLevels[0].size.height, pContext->aSidActiveTexture[currentStage]));
5147
5148	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5149	{
5150	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5151	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5152	AssertRCReturn(rc, rc);
5153	}
5154
5155	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5156	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5157
5158	/* Necessary for the fixed pipeline. */
5159	glEnable(GL_TEXTURE_2D);
5160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5161
5162	if (pContext->aSidActiveTexture[currentStage] != sid)
5163	{
5164	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5165	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5166	{
5167	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5168	{
5169	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5170
5171	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5172	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5173	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5174	}
5175	}
5176	}
5177	pContext->aSidActiveTexture[currentStage] = sid;
5178	}
5179	/* Finished; continue with the next one. */
5180	continue;
5181
5182	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5183	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5184	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5185	break;
5186
5187	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5188	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5189	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5190	break;
5191
5192	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5193	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5194	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5195	break;
5196
5197	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5198	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5199	{
5200	uint32_t mipFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MIPFILTER].value;
5201	uint32_t minFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MINFILTER].value;
5202
5203	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5204	textureType = GL_TEXTURE_MIN_FILTER;
5205	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5206	{
5207	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5208	{
5209	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5210	val = GL_NEAREST_MIPMAP_LINEAR;
5211	else
5212	val = GL_NEAREST_MIPMAP_NEAREST;
5213	}
5214	else
5215	{
5216	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5217	val = GL_LINEAR_MIPMAP_LINEAR;
5218	else
5219	val = GL_LINEAR_MIPMAP_NEAREST;
5220	}
5221	}
5222	else
5223	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5224	break;
5225	}
5226
5227	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5228	textureType = GL_TEXTURE_MAG_FILTER;
5229	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5230	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5231	break;
5232
5233	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5234	{
5235	GLfloat color[4]; /* red, green, blue, alpha */
5236
5237	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5238
5239	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5240	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5241	break;
5242	}
5243
5244	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5245	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5246	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5247	break;
5248
5249	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5250	textureType = GL_TEXTURE_BASE_LEVEL;
5251	val = pTextureState[i].value;
5252	break;
5253
5254	#if 0
5255	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5256	samplerType = D3DSAMP_MAXANISOTROPY;
5257	val = pTextureState[i].value; /* Identical?? */
5258	break;
5259
5260	case SVGA3D_TS_GAMMA: /* float */
5261	samplerType = D3DSAMP_SRGBTEXTURE;
5262	/* Boolean in D3D */
5263	if (pTextureState[i].floatValue == 1.0f)
5264	val = FALSE;
5265	else
5266	val = TRUE;
5267	break;
5268	#endif
5269	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5270	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5271	AssertFailed();
5272	break;
5273
5274	default:
5275	//AssertFailed();
5276	break;
5277	}
5278
5279	if (textureType != ~(GLenum)0)
5280	{
5281	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5282	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5283	}
5284	}
5285
5286	return VINF_SUCCESS;
5287	}
5288
5289	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5290	{
5291	PVMSVGA3DCONTEXT pContext;
5292	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5293	AssertReturn(pState, VERR_NO_MEMORY);
5294	GLenum oglFace;
5295
5296	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5297
5298	if ( cid >= pState->cContexts
5299	\|\| pState->papContexts[cid]->id != cid)
5300	{
5301	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5302	return VERR_INVALID_PARAMETER;
5303	}
5304	pContext = pState->papContexts[cid];
5305	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5306
5307	switch (face)
5308	{
5309	case SVGA3D_FACE_NONE:
5310	case SVGA3D_FACE_FRONT:
5311	oglFace = GL_FRONT;
5312	break;
5313
5314	case SVGA3D_FACE_BACK:
5315	oglFace = GL_BACK;
5316	break;
5317
5318	case SVGA3D_FACE_FRONT_BACK:
5319	oglFace = GL_FRONT_AND_BACK;
5320	break;
5321
5322	default:
5323	AssertFailedReturn(VERR_INVALID_PARAMETER);
5324	}
5325
5326	/* Save for vm state save/restore. */
5327	pContext->state.aMaterial[face].fValid = true;
5328	pContext->state.aMaterial[face].material = *pMaterial;
5329	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5330
5331	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5332	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5333	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5334	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5335	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5337
5338	return VINF_SUCCESS;
5339	}
5340
5341	/** @todo Move into separate library as we are using logic from Wine here. */
5342	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5343	{
5344	PVMSVGA3DCONTEXT pContext;
5345	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5346	AssertReturn(pState, VERR_NO_MEMORY);
5347	float QuadAttenuation;
5348
5349	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5350
5351	if ( cid >= pState->cContexts
5352	\|\| pState->papContexts[cid]->id != cid)
5353	{
5354	Log(("vmsvga3dSetLightData invalid context id!\n"));
5355	return VERR_INVALID_PARAMETER;
5356	}
5357	pContext = pState->papContexts[cid];
5358	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5359
5360	/* Store for vm state save/restore */
5361	if (index < SVGA3D_MAX_LIGHTS)
5362	{
5363	pContext->state.aLightData[index].fValidData = true;
5364	pContext->state.aLightData[index].data = *pData;
5365	}
5366	else
5367	AssertFailed();
5368
5369	if ( pData->attenuation0 < 0.0f
5370	\|\| pData->attenuation1 < 0.0f
5371	\|\| pData->attenuation2 < 0.0f)
5372	{
5373	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5374	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5375	}
5376
5377	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5378	glMatrixMode(GL_MODELVIEW);
5379	glPushMatrix();
5380	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5381
5382	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5383	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5384	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5385
5386	if (pData->range * pData->range >= FLT_MIN)
5387	QuadAttenuation = 1.4f / (pData->range * pData->range);
5388	else
5389	QuadAttenuation = 0.0f;
5390
5391	switch (pData->type)
5392	{
5393	case SVGA3D_LIGHTTYPE_POINT:
5394	{
5395	GLfloat position[4];
5396
5397	position[0] = pData->position[0];
5398	position[1] = pData->position[1];
5399	position[2] = pData->position[2];
5400	position[3] = 1.0f;
5401
5402	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5403	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5404
5405	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5406	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5407
5408	/* Attenuation - Are these right? guessing... */
5409	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5410	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5411
5412	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5413	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5414
5415	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5416	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5417
5418	/** @todo range */
5419	break;
5420	}
5421
5422	case SVGA3D_LIGHTTYPE_SPOT1:
5423	{
5424	GLfloat exponent;
5425	GLfloat position[4];
5426	const GLfloat pi = 4.0f * atanf(1.0f);
5427
5428	position[0] = pData->position[0];
5429	position[1] = pData->position[1];
5430	position[2] = pData->position[2];
5431	position[3] = 1.0f;
5432
5433	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5434	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5435
5436	position[0] = pData->direction[0];
5437	position[1] = pData->direction[1];
5438	position[2] = pData->direction[2];
5439	position[3] = 1.0f;
5440
5441	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5442	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5443
5444	/*
5445	* opengl-ish and d3d-ish spot lights use too different models for the
5446	* light "intensity" as a function of the angle towards the main light direction,
5447	* so we only can approximate very roughly.
5448	* however spot lights are rather rarely used in games (if ever used at all).
5449	* furthermore if still used, probably nobody pays attention to such details.
5450	*/
5451	if (pData->falloff == 0)
5452	{
5453	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5454	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5455	* will always be 1.0 for both of them, and we don't have to care for the
5456	* rest of the rather complex calculation
5457	*/
5458	exponent = 0.0f;
5459	}
5460	else
5461	{
5462	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5463	if (rho < 0.0001f)
5464	rho = 0.0001f;
5465	exponent = -0.3f/log(cos(rho/2));
5466	}
5467	if (exponent > 128.0f)
5468	exponent = 128.0f;
5469
5470	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5471	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5472
5473	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5474	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5475
5476	/* Attenuation - Are these right? guessing... */
5477	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5478	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5479
5480	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5481	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5482
5483	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5484	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5485
5486	/** @todo range */
5487	break;
5488	}
5489
5490	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5491	{
5492	GLfloat position[4];
5493
5494	position[0] = -pData->direction[0];
5495	position[1] = -pData->direction[1];
5496	position[2] = -pData->direction[2];
5497	position[3] = 0.0f;
5498
5499	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5500	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5501
5502	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5503	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5504
5505	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5506	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5507	break;
5508	}
5509
5510	case SVGA3D_LIGHTTYPE_SPOT2:
5511	default:
5512	Log(("Unsupported light type!!\n"));
5513	return VERR_INVALID_PARAMETER;
5514	}
5515
5516	/* Restore the modelview matrix */
5517	glPopMatrix();
5518
5519	return VINF_SUCCESS;
5520	}
5521
5522	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5523	{
5524	PVMSVGA3DCONTEXT pContext;
5525	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5526	AssertReturn(pState, VERR_NO_MEMORY);
5527
5528	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5529
5530	if ( cid >= pState->cContexts
5531	\|\| pState->papContexts[cid]->id != cid)
5532	{
5533	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5534	return VERR_INVALID_PARAMETER;
5535	}
5536	pContext = pState->papContexts[cid];
5537	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5538
5539	/* Store for vm state save/restore */
5540	if (index < SVGA3D_MAX_LIGHTS)
5541	pContext->state.aLightData[index].fEnabled = !!enabled;
5542	else
5543	AssertFailed();
5544
5545	if (enabled)
5546	{
5547	/* Load the default settings if none have been set yet. */
5548	if (!pContext->state.aLightData[index].fValidData)
5549	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5550	glEnable(GL_LIGHT0 + index);
5551	}
5552	else
5553	glDisable(GL_LIGHT0 + index);
5554
5555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5556	return VINF_SUCCESS;
5557	}
5558
5559	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5560	{
5561	PVMSVGA3DCONTEXT pContext;
5562	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5563	AssertReturn(pState, VERR_NO_MEMORY);
5564
5565	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5566
5567	if ( cid >= pState->cContexts
5568	\|\| pState->papContexts[cid]->id != cid)
5569	{
5570	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5571	return VERR_INVALID_PARAMETER;
5572	}
5573	pContext = pState->papContexts[cid];
5574	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5575
5576	/* Save for vm state save/restore. */
5577	pContext->state.RectViewPort = *pRect;
5578	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5579
5580	/** @todo y-inversion for partial viewport coordinates? */
5581	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5582	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5583
5584	/* Reset the projection matrix as that relies on the viewport setting. */
5585	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5586	{
5587	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5588	}
5589	else
5590	{
5591	float matrix[16];
5592
5593	/* identity matrix if no matrix set. */
5594	memset(matrix, 0, sizeof(matrix));
5595	matrix[0] = 1.0;
5596	matrix[5] = 1.0;
5597	matrix[10] = 1.0;
5598	matrix[15] = 1.0;
5599	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5600	}
5601
5602	return VINF_SUCCESS;
5603	}
5604
5605	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5606	{
5607	PVMSVGA3DCONTEXT pContext;
5608	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5609	AssertReturn(pState, VERR_NO_MEMORY);
5610	double oglPlane[4];
5611
5612	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)));
5613	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5614
5615	if ( cid >= pState->cContexts
5616	\|\| pState->papContexts[cid]->id != cid)
5617	{
5618	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5619	return VERR_INVALID_PARAMETER;
5620	}
5621	pContext = pState->papContexts[cid];
5622	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5623
5624	/* Store for vm state save/restore. */
5625	pContext->state.aClipPlane[index].fValid = true;
5626	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5627
5628	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5629	oglPlane[0] = (double)plane[0];
5630	oglPlane[1] = (double)plane[1];
5631	oglPlane[2] = (double)plane[2];
5632	oglPlane[3] = (double)plane[3];
5633
5634	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5635	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5636
5637	return VINF_SUCCESS;
5638	}
5639
5640	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5641	{
5642	PVMSVGA3DCONTEXT pContext;
5643	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5644	AssertReturn(pState, VERR_NO_MEMORY);
5645
5646	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5647
5648	if ( cid >= pState->cContexts
5649	\|\| pState->papContexts[cid]->id != cid)
5650	{
5651	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5652	return VERR_INVALID_PARAMETER;
5653	}
5654	pContext = pState->papContexts[cid];
5655	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5656
5657	/* Store for vm state save/restore. */
5658	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5659	pContext->state.RectScissor = *pRect;
5660
5661	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5662	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5663
5664	return VINF_SUCCESS;
5665	}
5666
5667	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5668	{
5669	/* Convert byte color components to float (0-1.0) */
5670	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5671	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5672	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5673	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5674	}
5675
5676	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5677	uint32_t cRects, SVGA3dRect *pRect)
5678	{
5679	GLbitfield mask = 0;
5680	PVMSVGA3DCONTEXT pContext;
5681	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5682	AssertReturn(pState, VERR_NO_MEMORY);
5683	GLboolean fDepthWriteEnabled = GL_FALSE;
5684
5685	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));
5686
5687	if ( cid >= pState->cContexts
5688	\|\| pState->papContexts[cid]->id != cid)
5689	{
5690	Log(("vmsvga3dCommandClear invalid context id!\n"));
5691	return VERR_INVALID_PARAMETER;
5692	}
5693	pContext = pState->papContexts[cid];
5694	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5695
5696	if (clearFlag & SVGA3D_CLEAR_COLOR)
5697	{
5698	GLfloat red, green, blue, alpha;
5699
5700	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5701
5702	/* Set the color clear value. */
5703	glClearColor(red, green, blue, alpha);
5704
5705	mask \|= GL_COLOR_BUFFER_BIT;
5706	}
5707	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5708	{
5709	/** @todo possibly the same problem as with glDepthMask */
5710	glClearStencil(stencil);
5711	mask \|= GL_STENCIL_BUFFER_BIT;
5712	}
5713	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5714	{
5715	glClearDepth((GLdouble)depth);
5716	mask \|= GL_DEPTH_BUFFER_BIT;
5717
5718	/* glClear will not clear the depth buffer if writing is disabled. */
5719	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5720	if (fDepthWriteEnabled == GL_FALSE)
5721	glDepthMask(GL_TRUE);
5722	}
5723
5724	if (cRects)
5725	{
5726	/* Save the current scissor test bit and scissor box. */
5727	glPushAttrib(GL_SCISSOR_BIT);
5728	glEnable(GL_SCISSOR_TEST);
5729	for (unsigned i=0; i < cRects; i++)
5730	{
5731	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));
5732	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5733	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5734	glClear(mask);
5735	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5736	}
5737	/* Restore the old scissor test bit and box */
5738	glPopAttrib();
5739	}
5740	else
5741	{
5742	glClear(mask);
5743	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5744	}
5745
5746	/* Restore depth write state. */
5747	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5748	&& fDepthWriteEnabled == GL_FALSE)
5749	glDepthMask(GL_FALSE);
5750
5751	return VINF_SUCCESS;
5752	}
5753
5754	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5755	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5756	{
5757	normalized = GL_FALSE;
5758	switch (identity.type)
5759	{
5760	case SVGA3D_DECLTYPE_FLOAT1:
5761	size = 1;
5762	type = GL_FLOAT;
5763	break;
5764	case SVGA3D_DECLTYPE_FLOAT2:
5765	size = 2;
5766	type = GL_FLOAT;
5767	break;
5768	case SVGA3D_DECLTYPE_FLOAT3:
5769	size = 3;
5770	type = GL_FLOAT;
5771	break;
5772	case SVGA3D_DECLTYPE_FLOAT4:
5773	size = 4;
5774	type = GL_FLOAT;
5775	break;
5776
5777	case SVGA3D_DECLTYPE_D3DCOLOR:
5778	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5779	type = GL_UNSIGNED_BYTE;
5780	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5781	break;
5782
5783	case SVGA3D_DECLTYPE_UBYTE4N:
5784	normalized = GL_TRUE;
5785	/* no break */
5786	case SVGA3D_DECLTYPE_UBYTE4:
5787	size = 4;
5788	type = GL_UNSIGNED_BYTE;
5789	break;
5790
5791	case SVGA3D_DECLTYPE_SHORT2N:
5792	normalized = GL_TRUE;
5793	/* no break */
5794	case SVGA3D_DECLTYPE_SHORT2:
5795	size = 2;
5796	type = GL_SHORT;
5797	break;
5798
5799	case SVGA3D_DECLTYPE_SHORT4N:
5800	normalized = GL_TRUE;
5801	/* no break */
5802	case SVGA3D_DECLTYPE_SHORT4:
5803	size = 4;
5804	type = GL_SHORT;
5805	break;
5806
5807	case SVGA3D_DECLTYPE_USHORT4N:
5808	normalized = GL_TRUE;
5809	size = 4;
5810	type = GL_UNSIGNED_SHORT;
5811	break;
5812
5813	case SVGA3D_DECLTYPE_USHORT2N:
5814	normalized = GL_TRUE;
5815	size = 2;
5816	type = GL_UNSIGNED_SHORT;
5817	break;
5818
5819	case SVGA3D_DECLTYPE_UDEC3:
5820	size = 3;
5821	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5822	break;
5823
5824	case SVGA3D_DECLTYPE_DEC3N:
5825	normalized = true;
5826	size = 3;
5827	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5828	break;
5829
5830	case SVGA3D_DECLTYPE_FLOAT16_2:
5831	size = 2;
5832	type = GL_HALF_FLOAT;
5833	break;
5834	case SVGA3D_DECLTYPE_FLOAT16_4:
5835	size = 4;
5836	type = GL_HALF_FLOAT;
5837	break;
5838	default:
5839	AssertFailedReturn(VERR_INVALID_PARAMETER);
5840	}
5841
5842	//pVertexElement->Method = identity.method;
5843	//pVertexElement->Usage = identity.usage;
5844
5845	return VINF_SUCCESS;
5846	}
5847
5848	/* Convert VMWare primitive type to its OpenGL equivalent. */
5849	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5850	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5851	{
5852	switch (PrimitiveType)
5853	{
5854	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5855	*pMode = GL_TRIANGLES;
5856	pcVertices = cPrimitiveCount 3;
5857	break;
5858	case SVGA3D_PRIMITIVE_POINTLIST:
5859	*pMode = GL_POINTS;
5860	*pcVertices = cPrimitiveCount;
5861	break;
5862	case SVGA3D_PRIMITIVE_LINELIST:
5863	*pMode = GL_LINES;
5864	pcVertices = cPrimitiveCount 2;
5865	break;
5866	case SVGA3D_PRIMITIVE_LINESTRIP:
5867	*pMode = GL_LINE_STRIP;
5868	*pcVertices = cPrimitiveCount + 1;
5869	break;
5870	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5871	*pMode = GL_TRIANGLE_STRIP;
5872	*pcVertices = cPrimitiveCount + 2;
5873	break;
5874	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5875	*pMode = GL_TRIANGLE_FAN;
5876	*pcVertices = cPrimitiveCount + 2;
5877	break;
5878	default:
5879	return VERR_INVALID_PARAMETER;
5880	}
5881	return VINF_SUCCESS;
5882	}
5883
5884	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5885	{
5886	int rc;
5887
5888	/* Reset the view matrix (also takes the world matrix into account). */
5889	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5890	{
5891	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5892	}
5893	else
5894	{
5895	float matrix[16];
5896
5897	/* identity matrix if no matrix set. */
5898	memset(matrix, 0, sizeof(matrix));
5899	matrix[0] = 1.0;
5900	matrix[5] = 1.0;
5901	matrix[10] = 1.0;
5902	matrix[15] = 1.0;
5903	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5904	}
5905
5906	/* Reset the projection matrix. */
5907	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5908	{
5909	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5910	}
5911	else
5912	{
5913	float matrix[16];
5914
5915	/* identity matrix if no matrix set. */
5916	memset(matrix, 0, sizeof(matrix));
5917	matrix[0] = 1.0;
5918	matrix[5] = 1.0;
5919	matrix[10] = 1.0;
5920	matrix[15] = 1.0;
5921	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5922	}
5923	AssertRC(rc);
5924	return rc;
5925	}
5926
5927	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5928	{
5929	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5930	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5931	PVMSVGA3DSURFACE pVertexSurface;
5932
5933	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5934	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5935
5936	pVertexSurface = pState->papSurfaces[sidVertex];
5937	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5938
5939	/* Create and/or bind the vertex buffer. */
5940	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5941	{
5942	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5943	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5944	pContext = &pState->SharedCtx;
5945	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5946
5947	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5948	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5949
5950	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5951	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5952
5953	Assert(pVertexSurface->fDirty);
5954	/** @todo rethink usage dynamic/static */
5955	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5956	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5957
5958	pVertexSurface->pMipmapLevels[0].fDirty = false;
5959	pVertexSurface->fDirty = false;
5960
5961	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5962
5963	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5964	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5965
5966	pContext = pSavedCtx;
5967	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5968	}
5969
5970	Assert(pVertexSurface->fDirty == false);
5971	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5972	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5973
5974	/* Setup the vertex declarations. */
5975	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5976	{
5977	GLint size;
5978	GLenum type;
5979	GLboolean normalized;
5980	GLuint index = iVertexDeclBase + iVertex;
5981
5982	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));
5983
5984	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5985	AssertRCReturn(rc, rc);
5986
5987	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5988	{
5989	/* Use numbered vertex arrays when shaders are active. */
5990	pState->ext.glEnableVertexAttribArray(index);
5991	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5992	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5993	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5994	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5995	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5996	}
5997	else
5998	{
5999	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6000	switch (pVertexDecl[iVertex].identity.usage)
6001	{
6002	case SVGA3D_DECLUSAGE_POSITIONT:
6003	case SVGA3D_DECLUSAGE_POSITION:
6004	{
6005	glEnableClientState(GL_VERTEX_ARRAY);
6006	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6007	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6008	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6009	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6010	break;
6011	}
6012	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6013	AssertFailed();
6014	break;
6015	case SVGA3D_DECLUSAGE_BLENDINDICES:
6016	AssertFailed();
6017	break;
6018	case SVGA3D_DECLUSAGE_NORMAL:
6019	glEnableClientState(GL_NORMAL_ARRAY);
6020	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6021	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6022	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6023	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6024	break;
6025	case SVGA3D_DECLUSAGE_PSIZE:
6026	AssertFailed();
6027	break;
6028	case SVGA3D_DECLUSAGE_TEXCOORD:
6029	/* Specify the affected texture unit. */
6030	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6031	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6032	#else
6033	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6034	#endif
6035	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6036	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6037	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6038	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6040	break;
6041	case SVGA3D_DECLUSAGE_TANGENT:
6042	AssertFailed();
6043	break;
6044	case SVGA3D_DECLUSAGE_BINORMAL:
6045	AssertFailed();
6046	break;
6047	case SVGA3D_DECLUSAGE_TESSFACTOR:
6048	AssertFailed();
6049	break;
6050	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6051	glEnableClientState(GL_COLOR_ARRAY);
6052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6053	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6054	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6055	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6056	break;
6057	case SVGA3D_DECLUSAGE_FOG:
6058	glEnableClientState(GL_FOG_COORD_ARRAY);
6059	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6060	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6061	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6062	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6063	break;
6064	case SVGA3D_DECLUSAGE_DEPTH:
6065	AssertFailed();
6066	break;
6067	case SVGA3D_DECLUSAGE_SAMPLE:
6068	AssertFailed();
6069	break;
6070	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6071	}
6072	}
6073
6074	#ifdef LOG_ENABLED
6075	if (pVertexDecl[iVertex].array.stride == 0)
6076	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6077	#endif
6078	}
6079
6080	return VINF_SUCCESS;
6081	}
6082
6083	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6084	{
6085	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6086
6087	/* Clean up the vertex declarations. */
6088	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6089	{
6090	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6091	{
6092	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6093	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6094	vmsvga3dResetTransformMatrices(pThis, pContext);
6095	}
6096
6097	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6098	{
6099	/* Use numbered vertex arrays when shaders are active. */
6100	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6101	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6102	}
6103	else
6104	{
6105	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6106	switch (pVertexDecl[iVertex].identity.usage)
6107	{
6108	case SVGA3D_DECLUSAGE_POSITION:
6109	case SVGA3D_DECLUSAGE_POSITIONT:
6110	glDisableClientState(GL_VERTEX_ARRAY);
6111	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6112	break;
6113	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6114	break;
6115	case SVGA3D_DECLUSAGE_BLENDINDICES:
6116	break;
6117	case SVGA3D_DECLUSAGE_NORMAL:
6118	glDisableClientState(GL_NORMAL_ARRAY);
6119	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6120	break;
6121	case SVGA3D_DECLUSAGE_PSIZE:
6122	break;
6123	case SVGA3D_DECLUSAGE_TEXCOORD:
6124	/* Specify the affected texture unit. */
6125	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6126	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6127	#else
6128	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6129	#endif
6130	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6132	break;
6133	case SVGA3D_DECLUSAGE_TANGENT:
6134	break;
6135	case SVGA3D_DECLUSAGE_BINORMAL:
6136	break;
6137	case SVGA3D_DECLUSAGE_TESSFACTOR:
6138	break;
6139	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6140	glDisableClientState(GL_COLOR_ARRAY);
6141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6142	break;
6143	case SVGA3D_DECLUSAGE_FOG:
6144	glDisableClientState(GL_FOG_COORD_ARRAY);
6145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6146	break;
6147	case SVGA3D_DECLUSAGE_DEPTH:
6148	break;
6149	case SVGA3D_DECLUSAGE_SAMPLE:
6150	break;
6151	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6152	}
6153	}
6154	}
6155	/* Unbind the vertex buffer after usage. */
6156	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6157	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6158	return VINF_SUCCESS;
6159	}
6160
6161	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6162	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6163	SVGA3dVertexDivisor *pVertexDivisor)
6164	{
6165	RT_NOREF(pVertexDivisor);
6166	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6167	AssertReturn(pState, VERR_INTERNAL_ERROR);
6168	PVMSVGA3DCONTEXT pContext;
6169	int rc = VERR_NOT_IMPLEMENTED;
6170	uint32_t iCurrentVertex;
6171
6172	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6173
6174	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6175	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6176	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6177	/** @todo Non-zero cVertexDivisor */
6178	Assert(!cVertexDivisor);
6179
6180	if ( cid >= pState->cContexts
6181	\|\| pState->papContexts[cid]->id != cid)
6182	{
6183	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6184	return VERR_INVALID_PARAMETER;
6185	}
6186	pContext = pState->papContexts[cid];
6187	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6188
6189	/* Check for pretransformed vertex declarations. */
6190	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6191	{
6192	switch (pVertexDecl[iVertex].identity.usage)
6193	{
6194	case SVGA3D_DECLUSAGE_POSITIONT:
6195	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6196	case SVGA3D_DECLUSAGE_POSITION:
6197	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6198	pContext->state.RectViewPort.h,
6199	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6200	break;
6201	default: /* Shut up MSC. */ break;
6202	}
6203	}
6204
6205	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6206	if (pContext->pShaderContext)
6207	{
6208	uint32_t rtHeight = 0;
6209
6210	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6211	{
6212	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
6213	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6214	}
6215
6216	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6217	}
6218
6219	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6220	iCurrentVertex = 0;
6221	while (iCurrentVertex < numVertexDecls)
6222	{
6223	uint32_t sidVertex = SVGA_ID_INVALID;
6224	uint32_t iVertex;
6225
6226	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6227	{
6228	if ( sidVertex != SVGA_ID_INVALID
6229	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6230	)
6231	break;
6232	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6233	}
6234
6235	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6236	AssertRCReturn(rc, rc);
6237
6238	iCurrentVertex = iVertex;
6239	}
6240
6241	/* Now draw the primitives. */
6242	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6243	{
6244	GLenum modeDraw;
6245	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6246	PVMSVGA3DSURFACE pIndexSurface = NULL;
6247	unsigned cVertices;
6248
6249	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6250	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6251	if (RT_FAILURE(rc))
6252	{
6253	AssertRC(rc);
6254	goto internal_error;
6255	}
6256
6257	if (sidIndex != SVGA3D_INVALID_ID)
6258	{
6259	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6260
6261	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6262	\|\| sidIndex >= pState->cSurfaces
6263	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6264	{
6265	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6266	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6267	rc = VERR_INVALID_PARAMETER;
6268	goto internal_error;
6269	}
6270	pIndexSurface = pState->papSurfaces[sidIndex];
6271	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6272
6273	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6274	{
6275	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6276	pContext = &pState->SharedCtx;
6277	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6278
6279	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6280	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6281
6282	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6283	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6284
6285	Assert(pIndexSurface->fDirty);
6286
6287	/** @todo rethink usage dynamic/static */
6288	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6289	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6290
6291	pIndexSurface->pMipmapLevels[0].fDirty = false;
6292	pIndexSurface->fDirty = false;
6293
6294	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6295
6296	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6297	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6298
6299	pContext = pState->papContexts[cid];
6300	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6301	}
6302	Assert(pIndexSurface->fDirty == false);
6303
6304	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6305	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6306	}
6307
6308	if (!pIndexSurface)
6309	{
6310	/* Render without an index buffer */
6311	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6312	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6313	}
6314	else
6315	{
6316	GLenum indexType;
6317
6318	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6319	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6320
6321	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6322	{
6323	indexType = GL_UNSIGNED_BYTE;
6324	}
6325	else
6326	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6327	{
6328	indexType = GL_UNSIGNED_SHORT;
6329	}
6330	else
6331	{
6332	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6333	indexType = GL_UNSIGNED_INT;
6334	}
6335
6336	/* Render with an index buffer */
6337	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));
6338	if (pRange[iPrimitive].indexBias == 0)
6339	glDrawElements(modeDraw,
6340	cVertices,
6341	indexType,
6342	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6343	else
6344	pState->ext.glDrawElementsBaseVertex(modeDraw,
6345	cVertices,
6346	indexType,
6347	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6348	pRange[iPrimitive].indexBias); /* basevertex */
6349
6350	/* Unbind the index buffer after usage. */
6351	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6352	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6353	}
6354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6355	}
6356
6357	internal_error:
6358
6359	/* Deactivate the vertex declarations. */
6360	iCurrentVertex = 0;
6361	while (iCurrentVertex < numVertexDecls)
6362	{
6363	uint32_t sidVertex = SVGA_ID_INVALID;
6364	uint32_t iVertex;
6365
6366	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6367	{
6368	if ( sidVertex != SVGA_ID_INVALID
6369	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6370	)
6371	break;
6372	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6373	}
6374
6375	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6376	AssertRCReturn(rc, rc);
6377
6378	iCurrentVertex = iVertex;
6379	}
6380	#ifdef DEBUG
6381	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6382	{
6383	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6384	{
6385	GLint activeTexture = 0;
6386	GLint activeTextureUnit = 0;
6387
6388	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6389	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6390	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6391	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6392
6393	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6394	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6395	pState->ext.glActiveTexture(activeTextureUnit);
6396	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6397
6398	# 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. */
6399	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6400	{
6401	PVMSVGA3DSURFACE pTexture;
6402	pTexture = pState->papSurfaces[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6403
6404	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6405	}
6406	# else
6407	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTexture[i]];
6408	AssertMsg(pTexture->id == pContext->aSidActiveTexture[i], ("%x vs %x\n", pTexture->id == pContext->aSidActiveTexture[i]));
6409	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6410	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6411	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTexture[i]));
6412	# endif
6413	}
6414	}
6415	#endif
6416
6417	#ifdef DEBUG_GFX_WINDOW
6418	if (pContext->sidRenderTarget)
6419	{
6420	SVGA3dCopyRect rect;
6421
6422	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6423	rect.w = pContext->state.RectViewPort.w;
6424	rect.h = pContext->state.RectViewPort.h;
6425	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6426	}
6427	#endif
6428
6429	return rc;
6430	}
6431
6432
6433	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6434	{
6435	PVMSVGA3DCONTEXT pContext;
6436	PVMSVGA3DSHADER pShader;
6437	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6438	AssertReturn(pState, VERR_NO_MEMORY);
6439	int rc;
6440
6441	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6442	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6443
6444	if ( cid >= pState->cContexts
6445	\|\| pState->papContexts[cid]->id != cid)
6446	{
6447	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6448	return VERR_INVALID_PARAMETER;
6449	}
6450	pContext = pState->papContexts[cid];
6451	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6452
6453	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6454	if (type == SVGA3D_SHADERTYPE_VS)
6455	{
6456	if (shid >= pContext->cVertexShaders)
6457	{
6458	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6459	AssertReturn(pvNew, VERR_NO_MEMORY);
6460	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6461	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6462	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6463	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6464	pContext->cVertexShaders = shid + 1;
6465	}
6466	/* If one already exists with this id, then destroy it now. */
6467	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6468	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6469
6470	pShader = &pContext->paVertexShader[shid];
6471	}
6472	else
6473	{
6474	Assert(type == SVGA3D_SHADERTYPE_PS);
6475	if (shid >= pContext->cPixelShaders)
6476	{
6477	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6478	AssertReturn(pvNew, VERR_NO_MEMORY);
6479	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6480	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6481	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6482	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6483	pContext->cPixelShaders = shid + 1;
6484	}
6485	/* If one already exists with this id, then destroy it now. */
6486	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6487	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6488
6489	pShader = &pContext->paPixelShader[shid];
6490	}
6491
6492	memset(pShader, 0, sizeof(*pShader));
6493	pShader->id = shid;
6494	pShader->cid = cid;
6495	pShader->type = type;
6496	pShader->cbData = cbData;
6497	pShader->pShaderProgram = RTMemAllocZ(cbData);
6498	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6499	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6500
6501	#ifdef DUMP_SHADER_DISASSEMBLY
6502	LPD3DXBUFFER pDisassembly;
6503	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6504	if (hr == D3D_OK)
6505	{
6506	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6507	pDisassembly->Release();
6508	}
6509	#endif
6510
6511	switch (type)
6512	{
6513	case SVGA3D_SHADERTYPE_VS:
6514	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6515	break;
6516
6517	case SVGA3D_SHADERTYPE_PS:
6518	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6519	break;
6520
6521	default:
6522	AssertFailedReturn(VERR_INVALID_PARAMETER);
6523	}
6524	if (rc != VINF_SUCCESS)
6525	{
6526	RTMemFree(pShader->pShaderProgram);
6527	memset(pShader, 0, sizeof(*pShader));
6528	pShader->id = SVGA3D_INVALID_ID;
6529	}
6530
6531	return rc;
6532	}
6533
6534	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6535	{
6536	PVMSVGA3DCONTEXT pContext;
6537	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6538	AssertReturn(pState, VERR_NO_MEMORY);
6539	PVMSVGA3DSHADER pShader = NULL;
6540	int rc;
6541
6542	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6543
6544	if ( cid >= pState->cContexts
6545	\|\| pState->papContexts[cid]->id != cid)
6546	{
6547	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6548	return VERR_INVALID_PARAMETER;
6549	}
6550	pContext = pState->papContexts[cid];
6551	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6552
6553	if (type == SVGA3D_SHADERTYPE_VS)
6554	{
6555	if ( shid < pContext->cVertexShaders
6556	&& pContext->paVertexShader[shid].id == shid)
6557	{
6558	pShader = &pContext->paVertexShader[shid];
6559	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6560	AssertRC(rc);
6561	}
6562	}
6563	else
6564	{
6565	Assert(type == SVGA3D_SHADERTYPE_PS);
6566	if ( shid < pContext->cPixelShaders
6567	&& pContext->paPixelShader[shid].id == shid)
6568	{
6569	pShader = &pContext->paPixelShader[shid];
6570	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6571	AssertRC(rc);
6572	}
6573	}
6574
6575	if (pShader)
6576	{
6577	if (pShader->pShaderProgram)
6578	RTMemFree(pShader->pShaderProgram);
6579	memset(pShader, 0, sizeof(*pShader));
6580	pShader->id = SVGA3D_INVALID_ID;
6581	}
6582	else
6583	AssertFailedReturn(VERR_INVALID_PARAMETER);
6584
6585	return VINF_SUCCESS;
6586	}
6587
6588	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6589	{
6590	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6591	AssertReturn(pState, VERR_NO_MEMORY);
6592	int rc;
6593
6594	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6595
6596	if ( !pContext
6597	&& cid < pState->cContexts
6598	&& pState->papContexts[cid]->id == cid)
6599	pContext = pState->papContexts[cid];
6600	else if (!pContext)
6601	{
6602	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6603	Log(("vmsvga3dShaderSet invalid context id!\n"));
6604	return VERR_INVALID_PARAMETER;
6605	}
6606	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6607
6608	if (type == SVGA3D_SHADERTYPE_VS)
6609	{
6610	/* Save for vm state save/restore. */
6611	pContext->state.shidVertex = shid;
6612	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6613
6614	if ( shid < pContext->cVertexShaders
6615	&& pContext->paVertexShader[shid].id == shid)
6616	{
6617	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6618	Assert(type == pShader->type);
6619
6620	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6621	AssertRCReturn(rc, rc);
6622	}
6623	else
6624	if (shid == SVGA_ID_INVALID)
6625	{
6626	/* Unselect shader. */
6627	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6628	AssertRCReturn(rc, rc);
6629	}
6630	else
6631	AssertFailedReturn(VERR_INVALID_PARAMETER);
6632	}
6633	else
6634	{
6635	/* Save for vm state save/restore. */
6636	pContext->state.shidPixel = shid;
6637	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6638
6639	Assert(type == SVGA3D_SHADERTYPE_PS);
6640	if ( shid < pContext->cPixelShaders
6641	&& pContext->paPixelShader[shid].id == shid)
6642	{
6643	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6644	Assert(type == pShader->type);
6645
6646	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6647	AssertRCReturn(rc, rc);
6648	}
6649	else
6650	if (shid == SVGA_ID_INVALID)
6651	{
6652	/* Unselect shader. */
6653	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6654	AssertRCReturn(rc, rc);
6655	}
6656	else
6657	AssertFailedReturn(VERR_INVALID_PARAMETER);
6658	}
6659
6660	return VINF_SUCCESS;
6661	}
6662
6663	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6664	{
6665	PVMSVGA3DCONTEXT pContext;
6666	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6667	AssertReturn(pState, VERR_NO_MEMORY);
6668	int rc;
6669
6670	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6671
6672	if ( cid >= pState->cContexts
6673	\|\| pState->papContexts[cid]->id != cid)
6674	{
6675	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6676	return VERR_INVALID_PARAMETER;
6677	}
6678	pContext = pState->papContexts[cid];
6679	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6680
6681	for (uint32_t i = 0; i < cRegisters; i++)
6682	{
6683	#ifdef LOG_ENABLED
6684	switch (ctype)
6685	{
6686	case SVGA3D_CONST_TYPE_FLOAT:
6687	{
6688	float pValuesF = (float )pValues;
6689	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)));
6690	break;
6691	}
6692
6693	case SVGA3D_CONST_TYPE_INT:
6694	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6695	break;
6696
6697	case SVGA3D_CONST_TYPE_BOOL:
6698	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6699	break;
6700	}
6701	#endif
6702	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6703	}
6704
6705	switch (type)
6706	{
6707	case SVGA3D_SHADERTYPE_VS:
6708	switch (ctype)
6709	{
6710	case SVGA3D_CONST_TYPE_FLOAT:
6711	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6712	break;
6713
6714	case SVGA3D_CONST_TYPE_INT:
6715	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6716	break;
6717
6718	case SVGA3D_CONST_TYPE_BOOL:
6719	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6720	break;
6721
6722	default:
6723	AssertFailedReturn(VERR_INVALID_PARAMETER);
6724	}
6725	AssertRCReturn(rc, rc);
6726	break;
6727
6728	case SVGA3D_SHADERTYPE_PS:
6729	switch (ctype)
6730	{
6731	case SVGA3D_CONST_TYPE_FLOAT:
6732	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6733	break;
6734
6735	case SVGA3D_CONST_TYPE_INT:
6736	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6737	break;
6738
6739	case SVGA3D_CONST_TYPE_BOOL:
6740	rc = ShaderSetPixelShaderConstantB(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	default:
6750	AssertFailedReturn(VERR_INVALID_PARAMETER);
6751	}
6752
6753	return VINF_SUCCESS;
6754	}
6755
6756
6757	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6758	{
6759	RT_NOREF(pThis, cid, type);
6760	AssertFailed();
6761	return VERR_NOT_IMPLEMENTED;
6762	}
6763
6764	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6765	{
6766	RT_NOREF(pThis, cid, type, guestResult);
6767	AssertFailed();
6768	return VERR_NOT_IMPLEMENTED;
6769	}
6770
6771	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6772	{
6773	RT_NOREF(pThis, cid, type, guestResult);
6774	AssertFailed();
6775	return VERR_NOT_IMPLEMENTED;
6776	}
6777

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 65381

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