DevVGA-SVGA3d-ogl.cpp@ 69859

Last change on this file since 69859 was 69859, checked in by vboxsync, 7 years ago
Devices/Graphics: VMSVGA: removed sidRenderTarget, because it does not work if the guest uses multiple render targets and render targets are already tracked anyway.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 262.9 KB

Line
1	/* $Id: DevVGA-SVGA3d-ogl.cpp 69859 2017-11-28 11:54:06Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#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	#define GLGETPROC(ProcType, ProcName) do { \
789	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
790	AssertMsgReturn(pState->ext.ProcName, (#ProcName " missing"), VERR_NOT_IMPLEMENTED); \
791	} while(0)
792	#define GLGETPROCOPT(ProcType, ProcName) do { \
793	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
794	AssertMsg(pState->ext.ProcName, (#ProcName " missing (optional)")); \
795	} while(0)
796
797	GLGETPROCOPT(PFNGLGENQUERIESPROC , glGenQueries);
798	GLGETPROCOPT(PFNGLDELETEQUERIESPROC , glDeleteQueries);
799	GLGETPROCOPT(PFNGLBEGINQUERYPROC , glBeginQuery);
800	GLGETPROCOPT(PFNGLENDQUERYPROC , glEndQuery);
801	GLGETPROCOPT(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv);
802
803	#undef GLGETPROCOPT
804	#undef GLGETPROC
805	/*
806	* Initialize the capabilities with sensible defaults.
807	*/
808	pState->caps.maxActiveLights = 1;
809	pState->caps.maxTextureBufferSize = 65536;
810	pState->caps.maxTextures = 1;
811	pState->caps.maxClipDistances = 4;
812	pState->caps.maxColorAttachments = 1;
813	pState->caps.maxRectangleTextureSize = 2048;
814	pState->caps.maxTextureAnisotropy = 2;
815	pState->caps.maxVertexShaderInstructions = 1024;
816	pState->caps.maxFragmentShaderInstructions = 1024;
817	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
818	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
819	pState->caps.flPointSize[0] = 1;
820	pState->caps.flPointSize[1] = 1;
821
822	/*
823	* Query capabilities
824	*/
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
827	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
828	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
829	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
830	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
831	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
832	#else
833	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
834	#endif
835	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
836	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
837	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
838	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
839
840	if (pState->ext.glGetProgramivARB)
841	{
842	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
843	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
844	&pState->caps.maxFragmentShaderTemps));
845	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
846	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
847	&pState->caps.maxFragmentShaderInstructions));
848	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
849	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
850	&pState->caps.maxVertexShaderTemps));
851	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
852	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
853	&pState->caps.maxVertexShaderInstructions));
854	}
855	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
856
857	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
858	* ARB Assembly Language
859	* These are done through testing the presence of extensions. You should test them in this order:
860	* GL_NV_gpu_program4: SM 4.0 or better.
861	* GL_NV_vertex_program3: SM 3.0 or better.
862	* GL_ARB_fragment_program: SM 2.0 or better.
863	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
864	*
865	*/
866	/** @todo distinguish between vertex and pixel shaders??? */
867	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
868	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
869	if (v >= 3.30f)
870	{
871	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
872	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
873	}
874	else
875	if (v >= 1.20f)
876	{
877	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
878	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
879	}
880	else
881	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
882	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
883	{
884	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
885	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
886	}
887	else
888	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
889	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
890	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
891	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
892	)
893	{
894	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
895	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
896	}
897	else
898	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
899	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
900	{
901	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
902	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
903	}
904	else
905	{
906	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
907	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
908	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
909	}
910
911	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
912	{
913	/** @todo Intel drivers don't support this extension! */
914	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
915	}
916	#if 0
917	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
918	SVGA3D_DEVCAP_QUERY_TYPES = 15,
919	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
920	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
921	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
922	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
923	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
924	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
925	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
926	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
927	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
928	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
929	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
930	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
931	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
932	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
933	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
934	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
935	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
936	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
937	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
938	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
939	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
940	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
941	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
942	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
943	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
944	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
945	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
946	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
947	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
948	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
949	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
950	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
951	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
952	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
953	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
954	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
955	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
956	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
957	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
958	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
959	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
960	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
961	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
962	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
963	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
964	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
965	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
966	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
967	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
968	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
969	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
970	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
971	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
972	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
973	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
974	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
975	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
976	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
977	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
978	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
979	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
980	#endif
981
982	LogRel(("VMSVGA3d: Capabilities:\n"));
983	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
984	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
985	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
986	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
987	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
988	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
989	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
990	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
991	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
992	pState->caps.maxFragmentShaderTemps,
993	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
994	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
995	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
996	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
997
998
999	/* Initialize the shader library. */
1000	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1001	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1002	rc = ShaderInitLib(&pState->ShaderIf);
1003	AssertRC(rc);
1004
1005	/* Cleanup */
1006	rc = vmsvga3dContextDestroy(pThis, 1);
1007	AssertRC(rc);
1008	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1009	rc = vmsvga3dContextDestroy(pThis, 2);
1010	AssertRC(rc);
1011	#endif
1012
1013	if ( pState->rsGLVersion < 3.0
1014	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1015	{
1016	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1017	return VERR_NOT_IMPLEMENTED;
1018	}
1019	if ( !pState->ext.glIsRenderbuffer
1020	\|\| !pState->ext.glBindRenderbuffer
1021	\|\| !pState->ext.glDeleteRenderbuffers
1022	\|\| !pState->ext.glGenRenderbuffers
1023	\|\| !pState->ext.glRenderbufferStorage
1024	\|\| !pState->ext.glGetRenderbufferParameteriv
1025	\|\| !pState->ext.glIsFramebuffer
1026	\|\| !pState->ext.glBindFramebuffer
1027	\|\| !pState->ext.glDeleteFramebuffers
1028	\|\| !pState->ext.glGenFramebuffers
1029	\|\| !pState->ext.glCheckFramebufferStatus
1030	\|\| !pState->ext.glFramebufferTexture1D
1031	\|\| !pState->ext.glFramebufferTexture2D
1032	\|\| !pState->ext.glFramebufferTexture3D
1033	\|\| !pState->ext.glFramebufferRenderbuffer
1034	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1035	\|\| !pState->ext.glGenerateMipmap
1036	\|\| !pState->ext.glBlitFramebuffer
1037	\|\| !pState->ext.glRenderbufferStorageMultisample
1038	\|\| !pState->ext.glFramebufferTextureLayer)
1039	{
1040	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1041	return VERR_NOT_IMPLEMENTED;
1042	}
1043
1044	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1045	pState->idTestContext = SVGA_ID_INVALID;
1046	#endif
1047	return VINF_SUCCESS;
1048	}
1049
1050	int vmsvga3dReset(PVGASTATE pThis)
1051	{
1052	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1053	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1054
1055	/* Destroy all leftover surfaces. */
1056	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1057	{
1058	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1059	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1060	}
1061
1062	/* Destroy all leftover contexts. */
1063	for (uint32_t i = 0; i < pState->cContexts; i++)
1064	{
1065	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1066	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1067	}
1068
1069	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1070	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1071
1072	return VINF_SUCCESS;
1073	}
1074
1075	int vmsvga3dTerminate(PVGASTATE pThis)
1076	{
1077	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1078	AssertReturn(pState, VERR_WRONG_ORDER);
1079	int rc;
1080
1081	rc = vmsvga3dReset(pThis);
1082	AssertRCReturn(rc, rc);
1083
1084	/* Terminate the shader library. */
1085	rc = ShaderDestroyLib();
1086	AssertRC(rc);
1087
1088	#ifdef RT_OS_WINDOWS
1089	/* Terminate the window creation thread. */
1090	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1091	AssertRCReturn(rc, rc);
1092
1093	RTSemEventDestroy(pState->WndRequestSem);
1094	#elif defined(RT_OS_DARWIN)
1095
1096	#elif defined(RT_OS_LINUX)
1097	/* signal to the thread that it is supposed to exit */
1098	pState->bTerminate = true;
1099	/* wait for it to terminate */
1100	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1101	AssertRC(rc);
1102	XCloseDisplay(pState->display);
1103	#endif
1104
1105	RTStrFree(pState->pszExtensions);
1106	pState->pszExtensions = NULL;
1107	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1108	RTStrFree(pState->pszOtherExtensions);
1109	#endif
1110	pState->pszOtherExtensions = NULL;
1111
1112	return VINF_SUCCESS;
1113	}
1114
1115
1116	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1117	{
1118	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1119	* redraw it. */
1120
1121	#ifdef RT_OS_DARWIN
1122	RT_NOREF(pOldViewport);
1123	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1124	if ( pState
1125	&& idScreen == 0
1126	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1127	{
1128	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1129	}
1130	#else
1131	RT_NOREF(pThis, idScreen, pOldViewport);
1132	#endif
1133	}
1134
1135
1136	/**
1137	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1138	* given surface format capability.
1139	*
1140	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1141	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1142	*
1143	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1144	* of implicit guest expectations:
1145	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1146	*/
1147	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1148	{
1149	uint32_t result = 0;
1150
1151	/** @todo missing:
1152	*
1153	* SVGA3DFORMAT_OP_PIXELSIZE
1154	*/
1155
1156	switch (idx3dCaps)
1157	{
1158	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1159	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1160	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1161	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1162	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1163	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1164	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1165	break;
1166
1167	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1168	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1169	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1170	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1171	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1172	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1173	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1174	break;
1175	}
1176
1177	/** @todo check hardware caps! */
1178	switch (idx3dCaps)
1179	{
1180	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1181	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1182	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1183	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1184	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1185	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1186	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1187	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1188	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1189	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1190	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1191	result \|= SVGA3DFORMAT_OP_TEXTURE
1192	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1193	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1194	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1195	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1196	\| SVGA3DFORMAT_OP_CUBETEXTURE
1197	\| SVGA3DFORMAT_OP_SRGBREAD
1198	\| SVGA3DFORMAT_OP_SRGBWRITE;
1199	break;
1200
1201	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1202	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1203	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1204	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1205	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1206	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1207	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1208	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1209	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1210	break;
1211
1212	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1213	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1214	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1215	result \|= SVGA3DFORMAT_OP_TEXTURE
1216	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1217	\| SVGA3DFORMAT_OP_CUBETEXTURE
1218	\| SVGA3DFORMAT_OP_SRGBREAD;
1219	break;
1220
1221	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1222	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1223	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1224	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1225	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1226	break;
1227
1228	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1229	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1230	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1231	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1232	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1233	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1234	break;
1235
1236	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1237	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1238	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1239
1240	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1241	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1242	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1243	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1244	break;
1245	}
1246	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1247
1248	return result;
1249	}
1250
1251	#if 0 /* unused */
1252	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1253	{
1254	RT_NOREF(pState3D, idx3dCaps);
1255
1256	/** @todo test this somehow */
1257	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1258
1259	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1260	return result;
1261	}
1262	#endif
1263
1264
1265	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1266	{
1267	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1268	AssertReturn(pState, VERR_NO_MEMORY);
1269	int rc = VINF_SUCCESS;
1270
1271	*pu32Val = 0;
1272
1273	/*
1274	* The capabilities access by current (2015-03-01) linux sources (gallium,
1275	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1276	* aren't access.
1277	*/
1278
1279	switch (idx3dCaps)
1280	{
1281	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1282	case SVGA3D_DEVCAP_3D:
1283	pu32Val = 1; / boolean? */
1284	break;
1285
1286	case SVGA3D_DEVCAP_MAX_LIGHTS:
1287	*pu32Val = pState->caps.maxActiveLights;
1288	break;
1289
1290	case SVGA3D_DEVCAP_MAX_TEXTURES:
1291	*pu32Val = pState->caps.maxTextures;
1292	break;
1293
1294	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1295	*pu32Val = pState->caps.maxClipDistances;
1296	break;
1297
1298	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1299	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1300	*pu32Val = pState->caps.vertexShaderVersion;
1301	break;
1302
1303	case SVGA3D_DEVCAP_VERTEX_SHADER:
1304	/* boolean? */
1305	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1306	break;
1307
1308	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1309	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1310	*pu32Val = pState->caps.fragmentShaderVersion;
1311	break;
1312
1313	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1314	/* boolean? */
1315	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1316	break;
1317
1318	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1319	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1320	/* Must be obsolete by now; surface format caps specify the same thing. */
1321	rc = VERR_INVALID_PARAMETER;
1322	break;
1323
1324	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1325	break;
1326
1327	/*
1328	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1329	* return TRUE. Even on physical hardware that does not support
1330	* these formats natively, the SVGA3D device will provide an emulation
1331	* which should be invisible to the guest OS.
1332	*/
1333	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1334	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1335	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1336	*pu32Val = 1;
1337	break;
1338
1339	case SVGA3D_DEVCAP_QUERY_TYPES:
1340	break;
1341
1342	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1343	break;
1344
1345	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1346	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1347	AssertCompile(sizeof(uint32_t) == sizeof(float));
1348	(float )pu32Val = pState->caps.flPointSize[1];
1349	break;
1350
1351	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1352	/** @todo ?? */
1353	rc = VERR_INVALID_PARAMETER;
1354	break;
1355
1356	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1357	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1358	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1359	*pu32Val = pState->caps.maxRectangleTextureSize;
1360	break;
1361
1362	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1363	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1364	//*pu32Val = pCaps->MaxVolumeExtent;
1365	break;
1366
1367	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1368	pu32Val = 32768; / hardcoded in Wine */
1369	break;
1370
1371	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1372	//*pu32Val = pCaps->MaxTextureAspectRatio;
1373	break;
1374
1375	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1376	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1377	*pu32Val = pState->caps.maxTextureAnisotropy;
1378	break;
1379
1380	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1381	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1382	pu32Val = 0xFFFFF; / hardcoded in Wine */
1383	break;
1384
1385	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1386	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1387	*pu32Val = pState->caps.maxVertexShaderInstructions;
1388	break;
1389
1390	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1391	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1392	break;
1393
1394	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1395	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1396	*pu32Val = pState->caps.maxVertexShaderTemps;
1397	break;
1398
1399	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1400	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1401	*pu32Val = pState->caps.maxFragmentShaderTemps;
1402	break;
1403
1404	case SVGA3D_DEVCAP_TEXTURE_OPS:
1405	break;
1406
1407	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1408	break;
1409
1410	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1411	break;
1412
1413	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1414	break;
1415
1416	case SVGA3D_DEVCAP_SUPERSAMPLE:
1417	break;
1418
1419	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1420	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1421	break;
1422
1423	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1424	break;
1425
1426	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1427	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1428	*pu32Val = pState->caps.maxColorAttachments;
1429	break;
1430
1431	/*
1432	* This is the maximum number of SVGA context IDs that the guest
1433	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1434	*/
1435	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1436	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1437	break;
1438
1439	/*
1440	* This is the maximum number of SVGA surface IDs that the guest
1441	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1442	*/
1443	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1444	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1445	break;
1446
1447	#if 0 /* Appeared more recently, not yet implemented. */
1448	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1449	case SVGA3D_DEVCAP_LINE_AA:
1450	break;
1451	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1452	case SVGA3D_DEVCAP_LINE_STIPPLE:
1453	break;
1454	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1455	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1456	break;
1457	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1458	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1459	break;
1460	#endif
1461
1462	/*
1463	* Supported surface formats.
1464	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1465	*/
1466	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1467	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1469	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1470	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1471	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1472	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1473	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1474	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1475	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1476	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1477	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1478	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1479	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1480	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1481	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1482	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1483	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1484	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1485	break;
1486
1487	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1488	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1489	pu32Val = 0; / apparently not supported in OpenGL */
1490	break;
1491
1492	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1493	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1494	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1495	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1496	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1497	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1498	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1499	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1500	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1501	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1502	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1503	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1504	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1505	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1506	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1507	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1508	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1509	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1510	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1511	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1512	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1513	break;
1514
1515	/* Linux: Not referenced in current sources. */
1516	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1517	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1518	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1519	rc = VERR_INVALID_PARAMETER;
1520	*pu32Val = 0;
1521	break;
1522
1523	default:
1524	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1525	rc = VERR_INVALID_PARAMETER;
1526	break;
1527	}
1528
1529	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1530	return rc;
1531	}
1532
1533	/**
1534	* Convert SVGA format value to its OpenGL equivalent
1535	*
1536	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1537	* help from wined3dformat_from_d3dformat().
1538	*/
1539	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1540	{
1541	switch (format)
1542	{
1543	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1544	pSurface->internalFormatGL = GL_RGB8;
1545	pSurface->formatGL = GL_BGRA;
1546	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1547	break;
1548	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1549	pSurface->internalFormatGL = GL_RGBA8;
1550	pSurface->formatGL = GL_BGRA;
1551	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1552	break;
1553	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1554	pSurface->internalFormatGL = GL_RGB5;
1555	pSurface->formatGL = GL_RGB;
1556	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1557	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1558	break;
1559	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1560	pSurface->internalFormatGL = GL_RGB5;
1561	pSurface->formatGL = GL_BGRA;
1562	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1563	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1564	break;
1565	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1566	pSurface->internalFormatGL = GL_RGB5_A1;
1567	pSurface->formatGL = GL_BGRA;
1568	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1569	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1570	break;
1571	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1572	pSurface->internalFormatGL = GL_RGBA4;
1573	pSurface->formatGL = GL_BGRA;
1574	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1575	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1576	break;
1577
1578	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1579	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1580	pSurface->formatGL = GL_DEPTH_COMPONENT;
1581	pSurface->typeGL = GL_UNSIGNED_INT;
1582	break;
1583	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1584	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1585	pSurface->formatGL = GL_DEPTH_COMPONENT;
1586	pSurface->typeGL = GL_UNSIGNED_SHORT;
1587	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1588	break;
1589	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1590	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1591	pSurface->formatGL = GL_DEPTH_STENCIL;
1592	pSurface->typeGL = GL_UNSIGNED_INT;
1593	break;
1594	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1595	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1596	pSurface->formatGL = GL_DEPTH_STENCIL;
1597	pSurface->typeGL = GL_UNSIGNED_SHORT;
1598	/** @todo Wine sources hints at no hw support for this, so test this one! */
1599	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1600	break;
1601	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1602	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1603	pSurface->formatGL = GL_DEPTH_COMPONENT;
1604	pSurface->typeGL = GL_UNSIGNED_INT;
1605	break;
1606
1607	/* Advanced D3D9 depth formats. */
1608	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1609	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1610	pSurface->formatGL = GL_DEPTH_COMPONENT;
1611	pSurface->typeGL = GL_FLOAT;
1612	break;
1613
1614	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1615	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1616	pSurface->formatGL = GL_DEPTH_COMPONENT;
1617	pSurface->typeGL = GL_FLOAT; /* ??? */
1618	break;
1619
1620	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1621	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1622	pSurface->formatGL = GL_DEPTH_STENCIL;
1623	pSurface->typeGL = GL_INT; /* ??? */
1624	break;
1625
1626	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1627	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1628	#if 0
1629	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1630	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1631	#else /* wine suggests: */
1632	pSurface->formatGL = GL_RGBA;
1633	pSurface->typeGL = GL_UNSIGNED_BYTE;
1634	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1635	#endif
1636	break;
1637
1638	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1639	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1640	#if 0 /** @todo this needs testing... */
1641	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1642	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1643	#else /* wine suggests: */
1644	pSurface->formatGL = GL_RGBA;
1645	pSurface->typeGL = GL_UNSIGNED_BYTE;
1646	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1647	#endif
1648	break;
1649
1650	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1651	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1652	#if 0 /** @todo this needs testing... */
1653	pSurface->formatGL = GL_RGBA_S3TC;
1654	pSurface->typeGL = GL_UNSIGNED_INT;
1655	#else /* wine suggests: */
1656	pSurface->formatGL = GL_RGBA;
1657	pSurface->typeGL = GL_UNSIGNED_BYTE;
1658	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1659	#endif
1660	break;
1661
1662	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1663	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1664	pSurface->formatGL = GL_LUMINANCE;
1665	pSurface->typeGL = GL_UNSIGNED_BYTE;
1666	break;
1667
1668	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1669	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1670	pSurface->formatGL = GL_LUMINANCE;
1671	pSurface->typeGL = GL_UNSIGNED_SHORT;
1672	break;
1673
1674	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1675	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1676	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1677	pSurface->typeGL = GL_UNSIGNED_BYTE;
1678	break;
1679
1680	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1681	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1682	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1683	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1684	break;
1685
1686	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1687	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1688	pSurface->formatGL = GL_ALPHA;
1689	pSurface->typeGL = GL_UNSIGNED_BYTE;
1690	break;
1691
1692	#if 0
1693
1694	/* Bump-map formats */
1695	case SVGA3D_BUMPU8V8:
1696	return D3DFMT_V8U8;
1697	case SVGA3D_BUMPL6V5U5:
1698	return D3DFMT_L6V5U5;
1699	case SVGA3D_BUMPX8L8V8U8:
1700	return D3DFMT_X8L8V8U8;
1701	case SVGA3D_BUMPL8V8U8:
1702	/* No corresponding D3D9 equivalent. */
1703	AssertFailedReturn(D3DFMT_UNKNOWN);
1704	/* signed bump-map formats */
1705	case SVGA3D_V8U8:
1706	return D3DFMT_V8U8;
1707	case SVGA3D_Q8W8V8U8:
1708	return D3DFMT_Q8W8V8U8;
1709	case SVGA3D_CxV8U8:
1710	return D3DFMT_CxV8U8;
1711	/* mixed bump-map formats */
1712	case SVGA3D_X8L8V8U8:
1713	return D3DFMT_X8L8V8U8;
1714	case SVGA3D_A2W10V10U10:
1715	return D3DFMT_A2W10V10U10;
1716	#endif
1717
1718	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1719	pSurface->internalFormatGL = GL_RGBA16F;
1720	pSurface->formatGL = GL_RGBA;
1721	#if 0 /* bird: wine uses half float, sounds correct to me... */
1722	pSurface->typeGL = GL_FLOAT;
1723	#else
1724	pSurface->typeGL = GL_HALF_FLOAT;
1725	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1726	#endif
1727	break;
1728
1729	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1730	pSurface->internalFormatGL = GL_RGBA32F;
1731	pSurface->formatGL = GL_RGBA;
1732	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1733	break;
1734
1735	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1736	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1737	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1738	pSurface->formatGL = GL_RGBA;
1739	#else
1740	pSurface->formatGL = GL_BGRA;
1741	#endif
1742	pSurface->typeGL = GL_UNSIGNED_INT;
1743	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1744	break;
1745
1746
1747	/* Single- and dual-component floating point formats */
1748	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1749	pSurface->internalFormatGL = GL_R16F;
1750	pSurface->formatGL = GL_RED;
1751	#if 0 /* bird: wine uses half float, sounds correct to me... */
1752	pSurface->typeGL = GL_FLOAT;
1753	#else
1754	pSurface->typeGL = GL_HALF_FLOAT;
1755	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1756	#endif
1757	break;
1758	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1759	pSurface->internalFormatGL = GL_R32F;
1760	pSurface->formatGL = GL_RG;
1761	pSurface->typeGL = GL_FLOAT;
1762	break;
1763	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1764	pSurface->internalFormatGL = GL_RG16F;
1765	pSurface->formatGL = GL_RG;
1766	#if 0 /* bird: wine uses half float, sounds correct to me... */
1767	pSurface->typeGL = GL_FLOAT;
1768	#else
1769	pSurface->typeGL = GL_HALF_FLOAT;
1770	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1771	#endif
1772	break;
1773	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1774	pSurface->internalFormatGL = GL_RG32F;
1775	pSurface->formatGL = GL_RG;
1776	pSurface->typeGL = GL_FLOAT;
1777	break;
1778
1779	/*
1780	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1781	* the most efficient format to use when creating new surfaces
1782	* expressly for index or vertex data.
1783	*/
1784	case SVGA3D_BUFFER:
1785	pSurface->internalFormatGL = -1;
1786	pSurface->formatGL = -1;
1787	pSurface->typeGL = -1;
1788	break;
1789
1790	#if 0
1791	return D3DFMT_UNKNOWN;
1792
1793	case SVGA3D_V16U16:
1794	return D3DFMT_V16U16;
1795	#endif
1796
1797	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1798	pSurface->internalFormatGL = GL_RG16;
1799	pSurface->formatGL = GL_RG;
1800	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1801	pSurface->typeGL = GL_UNSIGNED_INT;
1802	#else
1803	pSurface->typeGL = GL_UNSIGNED_SHORT;
1804	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1805	#endif
1806	break;
1807
1808	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1809	pSurface->internalFormatGL = GL_RGBA16;
1810	pSurface->formatGL = GL_RGBA;
1811	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1812	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1813	#else
1814	pSurface->typeGL = GL_UNSIGNED_SHORT;
1815	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1816	#endif
1817	break;
1818
1819	#if 0
1820	/* Packed Video formats */
1821	case SVGA3D_UYVY:
1822	return D3DFMT_UYVY;
1823	case SVGA3D_YUY2:
1824	return D3DFMT_YUY2;
1825
1826	/* Planar video formats */
1827	case SVGA3D_NV12:
1828	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1829
1830	/* Video format with alpha */
1831	case SVGA3D_AYUV:
1832	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1833
1834	case SVGA3D_BC4_UNORM:
1835	case SVGA3D_BC5_UNORM:
1836	/* Unknown; only in DX10 & 11 */
1837	break;
1838	#endif
1839	default:
1840	AssertMsgFailed(("Unsupported format %d\n", format));
1841	break;
1842	}
1843	}
1844
1845
1846	#if 0
1847	/**
1848	* Convert SVGA multi sample count value to its D3D equivalent
1849	*/
1850	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1851	{
1852	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1853	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1854
1855	if (multisampleCount > 16)
1856	return D3DMULTISAMPLE_NONE;
1857
1858	/** @todo exact same mapping as d3d? */
1859	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1860	}
1861	#endif
1862
1863	/**
1864	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1865	*
1866	* @param pState The VMSVGA3d state.
1867	* @param pSurface The surface being destroyed.
1868	*/
1869	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1870	{
1871	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1872	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1873
1874	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1875	{
1876	case SVGA3D_SURFACE_CUBEMAP:
1877	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1878	break;
1879
1880	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1881	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1882	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1883	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1884	{
1885	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1886	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1887	}
1888	break;
1889
1890	case SVGA3D_SURFACE_HINT_TEXTURE:
1891	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1892	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1893	{
1894	glDeleteTextures(1, &pSurface->oglId.texture);
1895	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1896	}
1897	break;
1898
1899	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1900	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1901	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1902	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1903	{
1904	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1905	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1906	}
1907	break;
1908
1909	default:
1910	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1911	break;
1912	}
1913	}
1914
1915
1916	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1917	{
1918	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1919	uint32_t sidSrc = src.sid;
1920	uint32_t sidDest = dest.sid;
1921	int rc = VINF_SUCCESS;
1922
1923	AssertReturn(pState, VERR_NO_MEMORY);
1924	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1925	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1926	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1927	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1928
1929	for (uint32_t i = 0; i < cCopyBoxes; i++)
1930	{
1931	SVGA3dBox destBox, srcBox;
1932
1933	srcBox.x = pBox[i].srcx;
1934	srcBox.y = pBox[i].srcy;
1935	srcBox.z = pBox[i].srcz;
1936	srcBox.w = pBox[i].w;
1937	srcBox.h = pBox[i].h;
1938	srcBox.d = pBox[i].d;
1939
1940	destBox.x = pBox[i].x;
1941	destBox.y = pBox[i].y;
1942	destBox.z = pBox[i].z;
1943	destBox.w = pBox[i].w;
1944	destBox.h = pBox[i].h;
1945	destBox.d = pBox[i].d;
1946
1947	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1948	AssertRCReturn(rc, rc);
1949	}
1950	return VINF_SUCCESS;
1951	}
1952
1953
1954	/**
1955	* Save texture unpacking parameters and loads those appropriate for the given
1956	* surface.
1957	*
1958	* @param pState The VMSVGA3D state structure.
1959	* @param pContext The active context.
1960	* @param pSurface The surface.
1961	* @param pSave Where to save stuff.
1962	*/
1963	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1964	PVMSVGAPACKPARAMS pSave)
1965	{
1966	RT_NOREF(pState);
1967
1968	/*
1969	* Save (ignore errors, setting the defaults we want and avoids restore).
1970	*/
1971	pSave->iAlignment = 1;
1972	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1973	pSave->cxRow = 0;
1974	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1975
1976	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1977	pSave->cyImage = 0;
1978	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1979	Assert(pSave->cyImage == 0);
1980
1981	pSave->fSwapBytes = GL_FALSE;
1982	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1983	Assert(pSave->fSwapBytes == GL_FALSE);
1984
1985	pSave->fLsbFirst = GL_FALSE;
1986	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1987	Assert(pSave->fLsbFirst == GL_FALSE);
1988
1989	pSave->cSkipRows = 0;
1990	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1991	Assert(pSave->cSkipRows == 0);
1992
1993	pSave->cSkipPixels = 0;
1994	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1995	Assert(pSave->cSkipPixels == 0);
1996
1997	pSave->cSkipImages = 0;
1998	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1999	Assert(pSave->cSkipImages == 0);
2000
2001	VMSVGA3D_CLEAR_GL_ERRORS();
2002	#endif
2003
2004	/*
2005	* Setup unpack.
2006	*
2007	* Note! We use 1 as alignment here because we currently don't do any
2008	* aligning of line pitches anywhere.
2009	*/
2010	NOREF(pSurface);
2011	if (pSave->iAlignment != 1)
2012	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2013	if (pSave->cxRow != 0)
2014	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2015	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2016	if (pSave->cyImage != 0)
2017	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2018	if (pSave->fSwapBytes != 0)
2019	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2020	if (pSave->fLsbFirst != 0)
2021	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2022	if (pSave->cSkipRows != 0)
2023	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2024	if (pSave->cSkipPixels != 0)
2025	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2026	if (pSave->cSkipImages != 0)
2027	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2028	#endif
2029	}
2030
2031
2032	/**
2033	* Restores texture unpacking parameters.
2034	*
2035	* @param pState The VMSVGA3D state structure.
2036	* @param pContext The active context.
2037	* @param pSurface The surface.
2038	* @param pSave Where stuff was saved.
2039	*/
2040	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2041	PCVMSVGAPACKPARAMS pSave)
2042	{
2043	RT_NOREF(pState, pSurface);
2044
2045	if (pSave->iAlignment != 1)
2046	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2047	if (pSave->cxRow != 0)
2048	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2049	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2050	if (pSave->cyImage != 0)
2051	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2052	if (pSave->fSwapBytes != 0)
2053	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2054	if (pSave->fLsbFirst != 0)
2055	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2056	if (pSave->cSkipRows != 0)
2057	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2058	if (pSave->cSkipPixels != 0)
2059	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2060	if (pSave->cSkipImages != 0)
2061	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2062	#endif
2063	}
2064
2065
2066	/**
2067	* Create D3D/OpenGL texture object for the specified surface.
2068	*
2069	* Surfaces are created when needed.
2070	*
2071	* @param pState The VMSVGA3d state.
2072	* @param pContext The context.
2073	* @param idAssociatedContext Probably the same as pContext->id.
2074	* @param pSurface The surface to create the texture for.
2075	*/
2076	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2077	PVMSVGA3DSURFACE pSurface)
2078	{
2079	RT_NOREF(idAssociatedContext);
2080	GLint activeTexture = 0;
2081	uint32_t idPrevCtx = pState->idActiveContext;
2082	pContext = &pState->SharedCtx;
2083	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2084
2085	glGenTextures(1, &pSurface->oglId.texture);
2086	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2087	/** @todo Set the mip map generation filter settings. */
2088
2089	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2091
2092	/* Must bind texture to the current context in order to change it. */
2093	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2094	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2095
2096	/* Set the unpacking parameters. */
2097	VMSVGAPACKPARAMS SavedParams;
2098	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2099
2100	/* Set the mipmap base and max level paramters. */
2101	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2102	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2103	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2104	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2105
2106	if (pSurface->fDirty)
2107	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2108
2109	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2110	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2111	{
2112	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2113	exposing random host memory to the guest and helps a with the fedora 21 surface
2114	corruption issues (launchpad, background, search field, login). */
2115	if (pSurface->pMipmapLevels[i].fDirty)
2116	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2117
2118	glTexImage2D(GL_TEXTURE_2D,
2119	i,
2120	pSurface->internalFormatGL,
2121	pSurface->pMipmapLevels[i].mipmapSize.width,
2122	pSurface->pMipmapLevels[i].mipmapSize.height,
2123	0,
2124	pSurface->formatGL,
2125	pSurface->typeGL,
2126	pSurface->pMipmapLevels[i].pSurfaceData);
2127
2128	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2129
2130	pSurface->pMipmapLevels[i].fDirty = false;
2131	}
2132	pSurface->fDirty = false;
2133
2134	/* Restore unpacking parameters. */
2135	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2136
2137	/* Restore the old active texture. */
2138	glBindTexture(GL_TEXTURE_2D, activeTexture);
2139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2140
2141	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2142
2143	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2144	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2145	return VINF_SUCCESS;
2146	}
2147
2148
2149	/**
2150	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2151	*
2152	* @returns VBox status code.
2153	* @param pThis The VGA device instance.
2154	* @param pState The VMSVGA3d state.
2155	* @param pDstSurface The destination host surface.
2156	* @param uDstFace The destination face (valid).
2157	* @param uDstMipmap The destination mipmap level (valid).
2158	* @param pDstBox The destination box.
2159	* @param pSrcSurface The source host surface.
2160	* @param uSrcFace The destination face (valid).
2161	* @param uSrcMipmap The source mimap level (valid).
2162	* @param pSrcBox The source box.
2163	* @param enmMode The strecht blt mode .
2164	* @param pContext The VMSVGA3d context (already current for OGL).
2165	*/
2166	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2167	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2168	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2169	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2170	{
2171	RT_NOREF(pThis);
2172	RT_NOREF2(uDstFace, uSrcFace); /// @todo
2173
2174	/* Activate the read and draw framebuffer objects. */
2175	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2176	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2177	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2179
2180	/* Bind the source and destination objects to the right place. */
2181	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2182	pSrcSurface->oglId.texture, uSrcMipmap);
2183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2184	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2185	pDstSurface->oglId.texture, uDstMipmap);
2186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2187
2188	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),
2189	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2190	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2191
2192	pState->ext.glBlitFramebuffer(pSrcBox->x,
2193	#ifdef MANUAL_FLIP_SURFACE_DATA
2194	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2195	#else
2196	pSrcBox->y,
2197	#endif
2198	pSrcBox->x + pSrcBox->w, /* exclusive. */
2199	#ifdef MANUAL_FLIP_SURFACE_DATA
2200	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2201	#else
2202	pSrcBox->y + pSrcBox->h,
2203	#endif
2204	pDstBox->x,
2205	#ifdef MANUAL_FLIP_SURFACE_DATA
2206	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2207	#else
2208	pDstBox->y,
2209	#endif
2210	pDstBox->x + pDstBox->w, /* exclusive. */
2211	#ifdef MANUAL_FLIP_SURFACE_DATA
2212	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2213	#else
2214	pDstBox->y + pDstBox->h,
2215	#endif
2216	GL_COLOR_BUFFER_BIT,
2217	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2218	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2219
2220	/* Reset the frame buffer association */
2221	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2222	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2223
2224	return VINF_SUCCESS;
2225	}
2226
2227	/**
2228	* Save texture packing parameters and loads those appropriate for the given
2229	* surface.
2230	*
2231	* @param pState The VMSVGA3D state structure.
2232	* @param pContext The active context.
2233	* @param pSurface The surface.
2234	* @param pSave Where to save stuff.
2235	*/
2236	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2237	PVMSVGAPACKPARAMS pSave)
2238	{
2239	RT_NOREF(pState);
2240	/*
2241	* Save (ignore errors, setting the defaults we want and avoids restore).
2242	*/
2243	pSave->iAlignment = 1;
2244	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2245	pSave->cxRow = 0;
2246	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2247
2248	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2249	pSave->cyImage = 0;
2250	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2251	Assert(pSave->cyImage == 0);
2252
2253	pSave->fSwapBytes = GL_FALSE;
2254	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2255	Assert(pSave->fSwapBytes == GL_FALSE);
2256
2257	pSave->fLsbFirst = GL_FALSE;
2258	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2259	Assert(pSave->fLsbFirst == GL_FALSE);
2260
2261	pSave->cSkipRows = 0;
2262	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2263	Assert(pSave->cSkipRows == 0);
2264
2265	pSave->cSkipPixels = 0;
2266	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2267	Assert(pSave->cSkipPixels == 0);
2268
2269	pSave->cSkipImages = 0;
2270	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2271	Assert(pSave->cSkipImages == 0);
2272
2273	VMSVGA3D_CLEAR_GL_ERRORS();
2274	#endif
2275
2276	/*
2277	* Setup unpack.
2278	*
2279	* Note! We use 1 as alignment here because we currently don't do any
2280	* aligning of line pitches anywhere.
2281	*/
2282	NOREF(pSurface);
2283	if (pSave->iAlignment != 1)
2284	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2285	if (pSave->cxRow != 0)
2286	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2287	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2288	if (pSave->cyImage != 0)
2289	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2290	if (pSave->fSwapBytes != 0)
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2292	if (pSave->fLsbFirst != 0)
2293	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2294	if (pSave->cSkipRows != 0)
2295	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2296	if (pSave->cSkipPixels != 0)
2297	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2298	if (pSave->cSkipImages != 0)
2299	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2300	#endif
2301	}
2302
2303
2304	/**
2305	* Restores texture packing parameters.
2306	*
2307	* @param pState The VMSVGA3D state structure.
2308	* @param pContext The active context.
2309	* @param pSurface The surface.
2310	* @param pSave Where stuff was saved.
2311	*/
2312	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2313	PCVMSVGAPACKPARAMS pSave)
2314	{
2315	RT_NOREF(pState, pSurface);
2316	if (pSave->iAlignment != 1)
2317	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2318	if (pSave->cxRow != 0)
2319	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2320	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2321	if (pSave->cyImage != 0)
2322	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2323	if (pSave->fSwapBytes != 0)
2324	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2325	if (pSave->fLsbFirst != 0)
2326	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2327	if (pSave->cSkipRows != 0)
2328	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2329	if (pSave->cSkipPixels != 0)
2330	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2331	if (pSave->cSkipImages != 0)
2332	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2333	#endif
2334	}
2335
2336
2337	/**
2338	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2339	*
2340	* @returns Failure status code or @a rc.
2341	* @param pThis The VGA device instance data.
2342	* @param pState The VMSVGA3d state.
2343	* @param pSurface The host surface.
2344	* @param pMipLevel Mipmap level. The caller knows it already.
2345	* @param uHostFace The host face (valid).
2346	* @param uHostMipmap The host mipmap level (valid).
2347	* @param GuestPtr The guest pointer.
2348	* @param cbGuestPitch The guest pitch.
2349	* @param transfer The transfer direction.
2350	* @param pBox The box to copy.
2351	* @param pContext The context (for OpenGL).
2352	* @param rc The current rc for all boxes.
2353	* @param iBox The current box number (for Direct 3D).
2354	*/
2355	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2356	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2357	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2358	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2359	{
2360	RT_NOREF(iBox);
2361	RT_NOREF(uHostFace); /// @todo
2362
2363	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2364	{
2365	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2366	case SVGA3D_SURFACE_HINT_TEXTURE:
2367	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2368	{
2369	uint32_t cbSurfacePitch;
2370	uint8_t pDoubleBuffer, pBufferStart;
2371	unsigned uDestOffset = 0;
2372
2373	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2374	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2375
2376	if (transfer == SVGA3D_READ_HOST_VRAM)
2377	{
2378	GLint activeTexture;
2379
2380	/* Must bind texture to the current context in order to read it. */
2381	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2382	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2383
2384	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2385	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2386
2387	/* Set row length and alignment of the input data. */
2388	VMSVGAPACKPARAMS SavedParams;
2389	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2390
2391	glGetTexImage(GL_TEXTURE_2D,
2392	uHostMipmap,
2393	pSurface->formatGL,
2394	pSurface->typeGL,
2395	pDoubleBuffer);
2396	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2397
2398	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2399
2400	/* Restore the old active texture. */
2401	glBindTexture(GL_TEXTURE_2D, activeTexture);
2402	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2403
2404	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2405	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2406	<= pMipLevel->cbSurface,
2407	RTMemFree(pDoubleBuffer),
2408	VERR_INTERNAL_ERROR);
2409
2410	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2411
2412	#ifdef MANUAL_FLIP_SURFACE_DATA
2413	pBufferStart = pDoubleBuffer
2414	+ pBox->x * pSurface->cbBlock
2415	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2416	- cbSurfacePitch; /* flip image during copy */
2417	#else
2418	pBufferStart = pDoubleBuffer + uDestOffset;
2419	#endif
2420	}
2421	else
2422	{
2423	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2424	#ifdef MANUAL_FLIP_SURFACE_DATA
2425	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2426	#else
2427	pBufferStart = pDoubleBuffer;
2428	#endif
2429	}
2430
2431	rc = vmsvgaGMRTransfer(pThis,
2432	transfer,
2433	pBufferStart,
2434	#ifdef MANUAL_FLIP_SURFACE_DATA
2435	-(int32_t)cbSurfacePitch,
2436	#else
2437	(int32_t)cbSurfacePitch,
2438	#endif
2439	GuestPtr,
2440	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch, /// @todo compressed fmts
2441	cbGuestPitch,
2442	pBox->w * pSurface->cbBlock,
2443	pBox->h);
2444	AssertRC(rc);
2445
2446	/* Update the opengl surface data. */
2447	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2448	{
2449	GLint activeTexture = 0;
2450
2451	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2452	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2453
2454	/* Must bind texture to the current context in order to change it. */
2455	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2456	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2457
2458	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2459
2460	/* Set row length and alignment of the input data. */
2461	VMSVGAPACKPARAMS SavedParams;
2462	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2463
2464	glTexSubImage2D(GL_TEXTURE_2D,
2465	uHostMipmap,
2466	pBox->x,
2467	pBox->y,
2468	pBox->w,
2469	pBox->h,
2470	pSurface->formatGL,
2471	pSurface->typeGL,
2472	pDoubleBuffer);
2473
2474	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2475
2476	/* Restore old values. */
2477	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2478
2479	/* Restore the old active texture. */
2480	glBindTexture(GL_TEXTURE_2D, activeTexture);
2481	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2482	}
2483
2484	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2485
2486	/* Free the double buffer. */
2487	RTMemFree(pDoubleBuffer);
2488	break;
2489	}
2490
2491	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2492	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2493	break;
2494
2495	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2496	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2497	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2498	{
2499	Assert(pBox->h == 1);
2500
2501	VMSVGA3D_CLEAR_GL_ERRORS();
2502	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2503	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2504	{
2505	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2506	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2507	if (RT_LIKELY(pbData != NULL))
2508	{
2509	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2510	GLint cbStrictBufSize;
2511	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2512	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2513	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2514	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2515	#endif
2516
2517	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2518	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2519	<= pMipLevel->cbSurface))
2520	{
2521	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2522	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2523	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2524	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2525
2526	rc = vmsvgaGMRTransfer(pThis,
2527	transfer,
2528	pbData + offDst,
2529	pMipLevel->cbSurfacePitch,
2530	GuestPtr,
2531	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch,
2532	cbGuestPitch,
2533	pBox->w * pSurface->cbBlock,
2534	pBox->h);
2535	AssertRC(rc);
2536
2537	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offDst));
2538	}
2539	else
2540	{
2541	AssertFailed();
2542	rc = VERR_INTERNAL_ERROR;
2543	}
2544
2545	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2547	}
2548	else
2549	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2550	}
2551	else
2552	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2553	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2554	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2555	break;
2556	}
2557
2558	default:
2559	AssertFailed();
2560	break;
2561	}
2562
2563	return rc;
2564	}
2565
2566
2567	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2568	{
2569	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2570	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));
2571	for (uint32_t i = 0; i < cRects; i++)
2572	{
2573	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2574	}
2575
2576	/** @todo Only screen 0 for now. */
2577	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2578	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2579	/** @todo scaling */
2580	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2581
2582	if (cRects == 0)
2583	{
2584	/* easy case; no clipping */
2585	SVGA3dCopyBox box;
2586	SVGA3dGuestImage dst;
2587
2588	box.x = destRect.left;
2589	box.y = destRect.top;
2590	box.z = 0;
2591	box.w = destRect.right - destRect.left;
2592	box.h = destRect.bottom - destRect.top;
2593	box.d = 1;
2594	box.srcx = srcRect.left;
2595	box.srcy = srcRect.top;
2596	box.srcz = 0;
2597
2598	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2599	dst.ptr.offset = 0;
2600	dst.pitch = pThis->svga.cbScanline;
2601
2602	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2603	AssertRCReturn(rc, rc);
2604
2605	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2606	return VINF_SUCCESS;
2607	}
2608	else
2609	{
2610	SVGA3dGuestImage dst;
2611	SVGA3dCopyBox box;
2612
2613	box.srcz = 0;
2614	box.z = 0;
2615	box.d = 1;
2616
2617	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2618	dst.ptr.offset = 0;
2619	dst.pitch = pThis->svga.cbScanline;
2620
2621	/** @todo merge into one SurfaceDMA call */
2622	for (uint32_t i = 0; i < cRects; i++)
2623	{
2624	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2625	box.srcx = srcRect.left + pRect[i].left;
2626	box.srcy = srcRect.top + pRect[i].top;
2627
2628	box.x = pRect[i].left + destRect.left;
2629	box.y = pRect[i].top + destRect.top;
2630	box.z = 0;
2631	box.w = pRect[i].right - pRect[i].left;
2632	box.h = pRect[i].bottom - pRect[i].top;
2633
2634	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2635	AssertRCReturn(rc, rc);
2636
2637	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2638	}
2639
2640	return VINF_SUCCESS;
2641	}
2642	}
2643
2644	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2645	{
2646	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2647	PVMSVGA3DSURFACE pSurface;
2648	int rc = VINF_SUCCESS;
2649	PVMSVGA3DCONTEXT pContext;
2650	uint32_t cid;
2651	GLint activeTexture = 0;
2652
2653	AssertReturn(pState, VERR_NO_MEMORY);
2654	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2655	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2656
2657	pSurface = pState->papSurfaces[sid];
2658
2659	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2660	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2661	pSurface->autogenFilter = filter;
2662
2663	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2664
2665	cid = SVGA3D_INVALID_ID;
2666	pContext = &pState->SharedCtx;
2667	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2668
2669	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2670	{
2671	/* Unknown surface type; turn it into a texture. */
2672	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2673	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2674	AssertRCReturn(rc, rc);
2675	}
2676	else
2677	{
2678	/** @todo new filter */
2679	AssertFailed();
2680	}
2681
2682	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2683	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2684
2685	/* Must bind texture to the current context in order to change it. */
2686	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2687	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2688
2689	/* Generate the mip maps. */
2690	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2692
2693	/* Restore the old texture. */
2694	glBindTexture(GL_TEXTURE_2D, activeTexture);
2695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2696
2697	return VINF_SUCCESS;
2698	}
2699
2700	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2701	{
2702	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2703	PVMSVGA3DSURFACE pSurface;
2704	PVMSVGA3DCONTEXT pContext;
2705	uint32_t cid;
2706
2707	AssertReturn(pState, VERR_NO_MEMORY);
2708	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2709	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2710
2711	pSurface = pState->papSurfaces[sid];
2712
2713	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2714	for (uint32_t i=0; i < cRects; i++)
2715	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));
2716
2717	pContext = &pState->SharedCtx;
2718	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2719	cid = pContext->id;
2720	VMSVGA3D_CLEAR_GL_ERRORS();
2721
2722	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2723	/*
2724	* Source surface different size?
2725	*/
2726	RTRECT2 srcViewPort;
2727	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2728	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2729	{
2730	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2731	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2732
2733	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2734	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2735	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2736	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2737
2738	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2739	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2740	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2741	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2742	}
2743	else
2744	{
2745	srcViewPort.x = pThis->svga.viewport.x;
2746	srcViewPort.y = pThis->svga.viewport.y;
2747	srcViewPort.cx = pThis->svga.viewport.cx;
2748	srcViewPort.cy = pThis->svga.viewport.cy;
2749	}
2750	RTRECT SrcViewPortRect;
2751	SrcViewPortRect.xLeft = srcViewPort.x;
2752	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2753	SrcViewPortRect.yBottom = srcViewPort.y;
2754	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2755	#endif
2756
2757
2758	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2759	/*
2760	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2761	*/
2762	SVGA3dCopyRect rect;
2763	uint32_t oldVShader, oldPShader;
2764	GLint oldTextureId;
2765
2766	if (cRects == 0)
2767	{
2768	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2769	rect.w = pSurface->pMipmapLevels[0].size.width;
2770	rect.h = pSurface->pMipmapLevels[0].size.height;
2771	pRect = &rect;
2772	cRects = 1;
2773	}
2774
2775	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2776
2777	#if 0
2778	glDisable(GL_CULL_FACE);
2779	glDisable(GL_BLEND);
2780	glDisable(GL_ALPHA_TEST);
2781	glDisable(GL_SCISSOR_TEST);
2782	glDisable(GL_STENCIL_TEST);
2783	glEnable(GL_DEPTH_TEST);
2784	glDepthFunc(GL_ALWAYS);
2785	glDepthMask(GL_TRUE);
2786	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2787	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2788	#endif
2789
2790	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2791
2792	oldVShader = pContext->state.shidVertex;
2793	oldPShader = pContext->state.shidPixel;
2794	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2795	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2796
2797	/* Flush shader changes. */
2798	if (pContext->pShaderContext)
2799	ShaderUpdateState(pContext->pShaderContext, 0);
2800
2801	/* Activate the read and draw framebuffer objects. */
2802	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2803	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2804
2805	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2806	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2807	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2808
2809	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2810	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2811
2812	#if 0
2813	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2814	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2815	#endif
2816
2817	/* Reset the transformation matrices. */
2818	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2819	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2820	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2821	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2822	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2823	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2824	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2825	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2826
2827	for (uint32_t i = 0; i < cRects; i++)
2828	{
2829	float left, right, top, bottom; /* Texture coordinates */
2830	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2831
2832	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2833	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2834	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2835	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2836	pRect[i].w = pThis->svga.viewport.cx;
2837	pRect[i].h = pThis->svga.viewport.cy;
2838
2839	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2840	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2841	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2842	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2843	{
2844	/* Intersection is empty; skip */
2845	continue;
2846	}
2847
2848	left = pRect[i].srcx;
2849	right = pRect[i].srcx + pRect[i].w;
2850	top = pRect[i].srcy + pRect[i].h;
2851	bottom = pRect[i].srcy;
2852
2853	left /= pSurface->pMipmapLevels[0].size.width;
2854	right /= pSurface->pMipmapLevels[0].size.width;
2855	top /= pSurface->pMipmapLevels[0].size.height;
2856	bottom /= pSurface->pMipmapLevels[0].size.height;
2857
2858	vertexLeft = pRect[i].x;
2859	vertexRight = pRect[i].x + pRect[i].w;
2860	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2861	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2862
2863	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2864	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2865	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)));
2866
2867	glBegin(GL_QUADS);
2868
2869	/* bottom left */
2870	glTexCoord2f(left, bottom);
2871	glVertex2i(vertexLeft, vertexBottom);
2872
2873	/* top left */
2874	glTexCoord2f(left, top);
2875	glVertex2i(vertexLeft, vertexTop);
2876
2877	/* top right */
2878	glTexCoord2f(right, top);
2879	glVertex2i(vertexRight, vertexTop);
2880
2881	/* bottom right */
2882	glTexCoord2f(right, bottom);
2883	glVertex2i(vertexRight, vertexBottom);
2884
2885	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2886	}
2887
2888	/* Restore old settings. */
2889	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2890	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2891	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2892	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2893
2894	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2895
2896	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2897	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2898	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2899
2900	#else
2901	/*
2902	* glBlitFramebuffer variant.
2903	*/
2904	/* Activate the read and draw framebuffer objects. */
2905	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2906	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2907	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2908	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2909
2910	/* Bind the source objects to the right place. */
2911	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2912	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2913
2914
2915	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2916	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2917	ASMCompilerBarrier(); /* paranoia */
2918	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2919
2920	/* If there are no recangles specified, just grab a screenful. */
2921	SVGA3dCopyRect DummyRect;
2922	if (cRects != 0)
2923	{ /* likely */ }
2924	else
2925	{
2926	/** @todo Find the usecase for this or check what the original device does.
2927	* The original code was doing some scaling based on the surface
2928	* size... */
2929	# ifdef DEBUG_bird
2930	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2931	# endif
2932	DummyRect.x = DummyRect.srcx = 0;
2933	DummyRect.y = DummyRect.srcy = 0;
2934	DummyRect.w = pThis->svga.uWidth;
2935	DummyRect.h = pThis->svga.uHeight;
2936	cRects = 1;
2937	pRect = &DummyRect;
2938	}
2939
2940	/*
2941	* Blit the surface rectangle(s) to the back buffer.
2942	*/
2943	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
2944	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
2945	for (uint32_t i = 0; i < cRects; i++)
2946	{
2947	SVGA3dCopyRect ClippedRect = pRect[i];
2948
2949	/*
2950	* Do some sanity checking and limit width and height, all so we
2951	* don't need to think about wrap-arounds below.
2952	*/
2953	if (RT_LIKELY( ClippedRect.w
2954	&& ClippedRect.x < VMSVGA_MAX_X
2955	&& ClippedRect.srcx < VMSVGA_MAX_X
2956	&& ClippedRect.h
2957	&& ClippedRect.y < VMSVGA_MAX_Y
2958	&& ClippedRect.srcy < VMSVGA_MAX_Y
2959	))
2960	{ /* likely */ }
2961	else
2962	continue;
2963
2964	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
2965	{ /* likely */ }
2966	else
2967	ClippedRect.w = VMSVGA_MAX_X;
2968	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
2969	{ /* likely */ }
2970	else
2971	ClippedRect.h = VMSVGA_MAX_Y;
2972
2973
2974	/*
2975	* Source surface clipping (paranoia). Straight forward.
2976	*/
2977	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2978	{ /* likely */ }
2979	else
2980	continue;
2981	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2982	{ /* likely */ }
2983	else
2984	{
2985	AssertFailed(); /* remove if annoying. */
2986	ClippedRect.w = cxSurface - ClippedRect.srcx;
2987	}
2988
2989	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2990	{ /* likely */ }
2991	else
2992	continue;
2993	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2994	{ /* likely */ }
2995	else
2996	{
2997	AssertFailed(); /* remove if annoying. */
2998	ClippedRect.h = cySurface - ClippedRect.srcy;
2999	}
3000
3001	/*
3002	* Destination viewport clipping - real PITA.
3003	*
3004	* We have to take the following into account here:
3005	* - The source image is Y inverted.
3006	* - The destination framebuffer is in world and not window coordinates,
3007	* just like the source surface. This means working in the first quadrant.
3008	* - The viewport is in window coordinate, that is fourth quadrant and
3009	* negated Y values.
3010	* - The destination framebuffer is not scrolled, so we have to blit
3011	* what's visible into the top of the framebuffer.
3012	*
3013	*
3014	* To illustrate:
3015	*
3016	* source destination 0123456789
3017	* 8 ^---------- 8 ^---------- 0 ----------->
3018	* 7 \| \| 7 \| \| 1 \| \|
3019	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
3020	* 5 \| *** \| 5 \| * \| 3 \| * \|
3021	* 4 \| * \| => 4 \| * \| => 4 \| * \|
3022	* 3 \| * \| 3 \| * \| 5 \| * \|
3023	* 2 \| ******* \| 2 \| \| 6 \| \|
3024	* 1 \| \| 1 \| \| 7 \| \|
3025	* 0 -----------> 0 -----------> 8 v----------
3026	* 0123456789 0123456789 Destination window
3027	*
3028	* From the above, it follows that a destination viewport given in
3029	* window coordinates matches the source exactly when srcy = srcx = 0.
3030	*
3031	* Example (Y only):
3032	* ySrc = 0
3033	* yDst = 0
3034	* cyCopy = 9
3035	* cyScreen = cyCopy
3036	* cySurface >= cyCopy
3037	* yViewport = 5
3038	* cyViewport = 2 (i.e. '\| *** \|'
3039	* '\| \|' )
3040	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3041	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3042	*
3043	* We can see from the illustration that the final result should be:
3044	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3045	* DstRect = (0,2) (11, 4)
3046	*
3047	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3048	* easier to follow:
3049	* SrcRect = (0,5) (11, 7)
3050	*
3051	* From the top, Y values only:
3052	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3053	*
3054	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3055	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3056	* Copy.yDst += cyAdjust = 2;
3057	* Copy.ySrc = unchanged;
3058	* Copy.cx -= cyAdjust = 7;
3059	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3060	*
3061	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3062	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3063	* Copy.yDst = unchanged;
3064	* Copy.ySrc += cyAdjust = 5;
3065	* Copy.cx -= cyAdjust = 2;
3066	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3067	*
3068	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3069	* when the view is resized, moved and otherwise messed with,
3070	* the visible part of the framebuffer is actually the bottom
3071	* one. It's easy to adjust for this, just have to adjust the
3072	* destination rectangle such that yBottom is zero.
3073	*/
3074	/* X - no inversion, so kind of simple. */
3075	if (ClippedRect.x >= DstViewport.x)
3076	{
3077	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3078	{ /* typical */ }
3079	else if (ClippedRect.x < DstViewport.xRight)
3080	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3081	else
3082	continue;
3083	}
3084	else
3085	{
3086	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3087	if (cxAdjust < ClippedRect.w)
3088	{
3089	ClippedRect.w -= cxAdjust;
3090	ClippedRect.x += cxAdjust;
3091	ClippedRect.srcx += cxAdjust;
3092	}
3093	else
3094	continue;
3095
3096	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3097	{ /* typical */ }
3098	else
3099	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3100	}
3101
3102	/* Y - complicated, see above. */
3103	if (ClippedRect.y >= DstViewport.yLowWC)
3104	{
3105	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3106	{ /* typical */ }
3107	else if (ClippedRect.y < DstViewport.yHighWC)
3108	{
3109	/* adjustment #2 */
3110	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3111	ClippedRect.srcy += cyAdjust;
3112	ClippedRect.h -= cyAdjust;
3113	}
3114	else
3115	continue;
3116	}
3117	else
3118	{
3119	/* adjustment #1 */
3120	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3121	if (cyAdjust < ClippedRect.h)
3122	{
3123	ClippedRect.y += cyAdjust;
3124	ClippedRect.h -= cyAdjust;
3125	}
3126	else
3127	continue;
3128
3129	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3130	{ /* typical */ }
3131	else
3132	{
3133	/* adjustment #2 */
3134	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3135	ClippedRect.srcy += cyAdjust;
3136	ClippedRect.h -= cyAdjust;
3137	}
3138	}
3139
3140	/* Calc source rectangle with y flipping wrt destination. */
3141	RTRECT SrcRect;
3142	SrcRect.xLeft = ClippedRect.srcx;
3143	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3144	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3145	SrcRect.yTop = ClippedRect.srcy;
3146
3147	/* Calc destination rectangle. */
3148	RTRECT DstRect;
3149	DstRect.xLeft = ClippedRect.x;
3150	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3151	DstRect.yBottom = ClippedRect.y;
3152	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3153
3154	/* Adjust for viewport. */
3155	DstRect.xLeft -= DstViewport.x;
3156	DstRect.xRight -= DstViewport.x;
3157	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3158	DstRect.yTop -= DstRect.yBottom;
3159	DstRect.yBottom = 0;
3160	# else
3161	DstRect.yBottom += DstViewport.y;
3162	DstRect.yTop += DstViewport.y;
3163	# endif
3164
3165	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3166	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3167	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3168	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3169	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3170	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3171	}
3172
3173	#endif
3174
3175	/*
3176	* Flip the front and back buffers.
3177	*/
3178	#ifdef RT_OS_WINDOWS
3179	BOOL fRef = SwapBuffers(pContext->hdc);
3180	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3181	#elif defined(RT_OS_DARWIN)
3182	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3183	#else
3184	/* show the window if not already done */
3185	if (!pContext->fMapped)
3186	{
3187	XMapWindow(pState->display, pContext->window);
3188	pContext->fMapped = true;
3189	}
3190	/* now swap the buffers, i.e. display the rendering result */
3191	glXSwapBuffers(pState->display, pContext->window);
3192	#endif
3193
3194	/*
3195	* Now we can reset the frame buffer association. Doing it earlier means no
3196	* output on darwin.
3197	*/
3198	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3199	return VINF_SUCCESS;
3200	}
3201
3202	#ifdef RT_OS_LINUX
3203	/**
3204	* X11 event handling thread.
3205	*
3206	* @returns VINF_SUCCESS (ignored)
3207	* @param hThreadSelf thread handle
3208	* @param pvUser pointer to pState structure
3209	*/
3210	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3211	{
3212	RT_NOREF(hThreadSelf);
3213	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3214	while (!pState->bTerminate)
3215	{
3216	while (XPending(pState->display) > 0)
3217	{
3218	XEvent event;
3219	XNextEvent(pState->display, &event);
3220
3221	switch (event.type)
3222	{
3223	default:
3224	break;
3225	}
3226	}
3227	/* sleep for 16ms to not burn too many cycles */
3228	RTThreadSleep(16);
3229	}
3230	return VINF_SUCCESS;
3231	}
3232	#endif // RT_OS_LINUX
3233
3234
3235	/**
3236	* Create a new 3d context
3237	*
3238	* @returns VBox status code.
3239	* @param pThis VGA device instance data.
3240	* @param cid Context id
3241	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3242	*/
3243	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3244	{
3245	int rc;
3246	PVMSVGA3DCONTEXT pContext;
3247	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3248
3249	AssertReturn(pState, VERR_NO_MEMORY);
3250	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3251	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3252	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3253	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3254	#endif
3255
3256	Log(("vmsvga3dContextDefine id %x\n", cid));
3257	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3258	if (pState->idTestContext == SVGA_ID_INVALID)
3259	{
3260	pState->idTestContext = 207;
3261	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3262	AssertRCReturn(rc, rc);
3263	}
3264	#endif
3265
3266	if (cid == VMSVGA3D_SHARED_CTX_ID)
3267	pContext = &pState->SharedCtx;
3268	else
3269	{
3270	if (cid >= pState->cContexts)
3271	{
3272	/* Grow the array. */
3273	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3274	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3275	AssertReturn(pvNew, VERR_NO_MEMORY);
3276	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3277	while (pState->cContexts < cNew)
3278	{
3279	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3280	AssertReturn(pContext, VERR_NO_MEMORY);
3281	pContext->id = SVGA3D_INVALID_ID;
3282	pState->papContexts[pState->cContexts++] = pContext;
3283	}
3284	}
3285	/* If one already exists with this id, then destroy it now. */
3286	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3287	vmsvga3dContextDestroy(pThis, cid);
3288
3289	pContext = pState->papContexts[cid];
3290	}
3291
3292	/*
3293	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3294	*/
3295	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3296	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3297	{
3298	pSharedCtx = &pState->SharedCtx;
3299	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3300	{
3301	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3302	AssertLogRelRCReturn(rc, rc);
3303	}
3304	}
3305
3306	/*
3307	* Initialize the context.
3308	*/
3309	memset(pContext, 0, sizeof(*pContext));
3310	pContext->id = cid;
3311	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3312	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3313
3314	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3315	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3316	pContext->idFramebuffer = OPENGL_INVALID_ID;
3317	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3318	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3319
3320	rc = ShaderContextCreate(&pContext->pShaderContext);
3321	AssertRCReturn(rc, rc);
3322
3323	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3324	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3325
3326	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3327
3328	#ifdef RT_OS_WINDOWS
3329	/* Create a context window. */
3330	CREATESTRUCT cs;
3331	cs.lpCreateParams = NULL;
3332	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3333	# ifdef DEBUG_GFX_WINDOW
3334	cs.lpszName = (char *)RTMemAllocZ(256);
3335	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3336	# else
3337	cs.lpszName = NULL;
3338	# endif
3339	cs.lpszClass = 0;
3340	# ifdef DEBUG_GFX_WINDOW
3341	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3342	# else
3343	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3344	# endif
3345	cs.x = 0;
3346	cs.y = 0;
3347	cs.cx = pThis->svga.uWidth;
3348	cs.cy = pThis->svga.uHeight;
3349	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3350	cs.hMenu = NULL;
3351	cs.hInstance = pState->hInstance;
3352
3353	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3354	AssertRCReturn(rc, rc);
3355
3356	pContext->hdc = GetDC(pContext->hwnd);
3357	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3358
3359	PIXELFORMATDESCRIPTOR pfd = {
3360	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3361	1, /* version number */
3362	PFD_DRAW_TO_WINDOW \| /* support window */
3363	PFD_DOUBLEBUFFER \| /* support double buffering */
3364	PFD_SUPPORT_OPENGL, /* support OpenGL */
3365	PFD_TYPE_RGBA, /* RGBA type */
3366	24, /* 24-bit color depth */
3367	0, 0, 0, 0, 0, 0, /* color bits ignored */
3368	8, /* alpha buffer */
3369	0, /* shift bit ignored */
3370	0, /* no accumulation buffer */
3371	0, 0, 0, 0, /* accum bits ignored */
3372	16, /* set depth buffer */
3373	16, /* set stencil buffer */
3374	0, /* no auxiliary buffer */
3375	PFD_MAIN_PLANE, /* main layer */
3376	0, /* reserved */
3377	0, 0, 0 /* layer masks ignored */
3378	};
3379	int pixelFormat;
3380	BOOL ret;
3381
3382	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3383	/** @todo is this really necessary?? */
3384	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3385	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3386
3387	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3388	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3389
3390	pContext->hglrc = wglCreateContext(pContext->hdc);
3391	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3392
3393	if (pSharedCtx)
3394	{
3395	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3396	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3397	}
3398
3399	#elif defined(RT_OS_DARWIN)
3400	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3401
3402	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3403	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3404	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3405	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3406	pThis->svga.uWidth, pThis->svga.uHeight,
3407	pShareContext, pContext->fOtherProfile);
3408
3409	#else
3410	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3411
3412	if (pState->display == NULL)
3413	{
3414	/* get an X display and make sure we have glX 1.3 */
3415	pState->display = XOpenDisplay(0);
3416	Assert(pState->display);
3417	int glxMajor, glxMinor;
3418	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3419	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3420	/* start our X event handling thread */
3421	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3422	if (RT_FAILURE(rc))
3423	{
3424	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3425	return rc;
3426	}
3427	}
3428	int attrib[] =
3429	{
3430	GLX_RGBA,
3431	GLX_RED_SIZE, 1,
3432	GLX_GREEN_SIZE, 1,
3433	GLX_BLUE_SIZE, 1,
3434	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3435	GLX_DOUBLEBUFFER,
3436	None
3437	};
3438	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3439	XSetWindowAttributes swa;
3440	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3441	swa.border_pixel = 0;
3442	swa.background_pixel = 0;
3443	swa.event_mask = StructureNotifyMask \| ExposureMask;
3444	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3445	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3446	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3447	0, vi->depth, InputOutput,
3448	vi->visual, flags, &swa);
3449	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3450	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3451
3452	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3453
3454	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3455	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3456	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3457	#endif
3458
3459	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3460
3461	/* NULL during the first PowerOn call. */
3462	if (pState->ext.glGenFramebuffers)
3463	{
3464	/* Create a framebuffer object for this context. */
3465	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3466	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3467
3468	/* Bind the object to the framebuffer target. */
3469	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3470	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3471
3472	/* Create read and draw framebuffer objects for this context. */
3473	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3474	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3475
3476	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3478
3479	}
3480	#if 0
3481	/** @todo move to shader lib!!! */
3482	/* Clear the screen */
3483	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3484
3485	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3486	glClearIndex(0);
3487	glClearDepth(1);
3488	glClearStencil(0xffff);
3489	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3490	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3491	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3492	if (pState->ext.glProvokingVertex)
3493	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3494	/** @todo move to shader lib!!! */
3495	#endif
3496	return VINF_SUCCESS;
3497	}
3498
3499
3500	/**
3501	* Create a new 3d context
3502	*
3503	* @returns VBox status code.
3504	* @param pThis VGA device instance data.
3505	* @param cid Context id
3506	*/
3507	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3508	{
3509	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3510	}
3511
3512	/**
3513	* Destroys a 3d context.
3514	*
3515	* @returns VBox status code.
3516	* @param pThis VGA device instance data.
3517	* @param pContext The context to destroy.
3518	* @param cid Context id
3519	*/
3520	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3521	{
3522	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3523	AssertReturn(pState, VERR_NO_MEMORY);
3524	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3525	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3526	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3527
3528	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3529
3530	/* Destroy all leftover pixel shaders. */
3531	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3532	{
3533	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3534	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3535	}
3536	if (pContext->paPixelShader)
3537	RTMemFree(pContext->paPixelShader);
3538
3539	/* Destroy all leftover vertex shaders. */
3540	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3541	{
3542	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3543	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3544	}
3545	if (pContext->paVertexShader)
3546	RTMemFree(pContext->paVertexShader);
3547
3548	if (pContext->state.paVertexShaderConst)
3549	RTMemFree(pContext->state.paVertexShaderConst);
3550	if (pContext->state.paPixelShaderConst)
3551	RTMemFree(pContext->state.paPixelShaderConst);
3552
3553	if (pContext->pShaderContext)
3554	{
3555	int rc = ShaderContextDestroy(pContext->pShaderContext);
3556	AssertRC(rc);
3557	}
3558
3559	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3560	{
3561	/* Unbind the object from the framebuffer target. */
3562	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3563	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3564	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3565	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3566
3567	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3568	{
3569	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3570	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3571	}
3572	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3573	{
3574	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3575	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3576	}
3577	}
3578
3579	vmsvga3dOcclusionQueryDelete(pState, pContext);
3580
3581	#ifdef RT_OS_WINDOWS
3582	wglMakeCurrent(pContext->hdc, NULL);
3583	wglDeleteContext(pContext->hglrc);
3584	ReleaseDC(pContext->hwnd, pContext->hdc);
3585
3586	/* Destroy the window we've created. */
3587	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3588	AssertRC(rc);
3589	#elif defined(RT_OS_DARWIN)
3590	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3591	#elif defined(RT_OS_LINUX)
3592	glXMakeCurrent(pState->display, None, NULL);
3593	glXDestroyContext(pState->display, pContext->glxContext);
3594	XDestroyWindow(pState->display, pContext->window);
3595	#endif
3596
3597	memset(pContext, 0, sizeof(*pContext));
3598	pContext->id = SVGA3D_INVALID_ID;
3599
3600	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3601	return VINF_SUCCESS;
3602	}
3603
3604	/**
3605	* Destroy an existing 3d context
3606	*
3607	* @returns VBox status code.
3608	* @param pThis VGA device instance data.
3609	* @param cid Context id
3610	*/
3611	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3612	{
3613	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3614	AssertReturn(pState, VERR_WRONG_ORDER);
3615
3616	/*
3617	* Resolve the context and hand it to the common worker function.
3618	*/
3619	if ( cid < pState->cContexts
3620	&& pState->papContexts[cid]->id == cid)
3621	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3622
3623	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3624	return VINF_SUCCESS;
3625	}
3626
3627	/**
3628	* Worker for vmsvga3dChangeMode that resizes a context.
3629	*
3630	* @param pThis The VGA device instance data.
3631	* @param pState The VMSVGA3d state.
3632	* @param pContext The context.
3633	*/
3634	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3635	{
3636	#ifdef RT_OS_WINDOWS
3637	/* Resize the window. */
3638	CREATESTRUCT cs;
3639	RT_ZERO(cs);
3640	cs.cx = pThis->svga.uWidth;
3641	cs.cy = pThis->svga.uHeight;
3642	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3643	AssertRC(rc);
3644
3645	#elif defined(RT_OS_DARWIN)
3646	RT_NOREF(pState);
3647	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3648
3649	#elif defined(RT_OS_LINUX)
3650	XWindowChanges wc;
3651	wc.width = pThis->svga.uWidth;
3652	wc.height = pThis->svga.uHeight;
3653	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3654	#endif
3655	}
3656
3657	/* Handle resize */
3658	int vmsvga3dChangeMode(PVGASTATE pThis)
3659	{
3660	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3661	AssertReturn(pState, VERR_NO_MEMORY);
3662
3663	/* Resize the shared context too. */
3664	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3665	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3666
3667	/* Resize all active contexts. */
3668	for (uint32_t i = 0; i < pState->cContexts; i++)
3669	{
3670	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3671	if (pContext->id != SVGA3D_INVALID_ID)
3672	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3673	}
3674
3675	return VINF_SUCCESS;
3676	}
3677
3678
3679	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3680	{
3681	PVMSVGA3DCONTEXT pContext;
3682	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3683	AssertReturn(pState, VERR_NO_MEMORY);
3684	bool fModelViewChanged = false;
3685
3686	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3687
3688	if ( cid >= pState->cContexts
3689	\|\| pState->papContexts[cid]->id != cid)
3690	{
3691	Log(("vmsvga3dSetTransform invalid context id!\n"));
3692	return VERR_INVALID_PARAMETER;
3693	}
3694	pContext = pState->papContexts[cid];
3695	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3696
3697	/* Save this matrix for vm state save/restore. */
3698	pContext->state.aTransformState[type].fValid = true;
3699	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3700	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3701
3702	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)));
3703	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)));
3704	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)));
3705	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)));
3706
3707	switch (type)
3708	{
3709	case SVGA3D_TRANSFORM_VIEW:
3710	/* View * World = Model View */
3711	glMatrixMode(GL_MODELVIEW);
3712	glLoadMatrixf(matrix);
3713	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3714	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3715	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3716	fModelViewChanged = true;
3717	break;
3718
3719	case SVGA3D_TRANSFORM_PROJECTION:
3720	{
3721	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3722	AssertRCReturn(rc, rc);
3723	break;
3724	}
3725
3726	case SVGA3D_TRANSFORM_TEXTURE0:
3727	glMatrixMode(GL_TEXTURE);
3728	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3729	glLoadMatrixf(matrix);
3730	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3731	break;
3732
3733	case SVGA3D_TRANSFORM_TEXTURE1:
3734	case SVGA3D_TRANSFORM_TEXTURE2:
3735	case SVGA3D_TRANSFORM_TEXTURE3:
3736	case SVGA3D_TRANSFORM_TEXTURE4:
3737	case SVGA3D_TRANSFORM_TEXTURE5:
3738	case SVGA3D_TRANSFORM_TEXTURE6:
3739	case SVGA3D_TRANSFORM_TEXTURE7:
3740	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3741	return VERR_INVALID_PARAMETER;
3742
3743	case SVGA3D_TRANSFORM_WORLD:
3744	/* View * World = Model View */
3745	glMatrixMode(GL_MODELVIEW);
3746	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3747	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3748	else
3749	glLoadIdentity();
3750	glMultMatrixf(matrix);
3751	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3752	fModelViewChanged = true;
3753	break;
3754
3755	case SVGA3D_TRANSFORM_WORLD1:
3756	case SVGA3D_TRANSFORM_WORLD2:
3757	case SVGA3D_TRANSFORM_WORLD3:
3758	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3759	return VERR_INVALID_PARAMETER;
3760
3761	default:
3762	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3763	return VERR_INVALID_PARAMETER;
3764	}
3765
3766	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3767	if (fModelViewChanged)
3768	{
3769	/* Reprogram the clip planes. */
3770	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3771	{
3772	if (pContext->state.aClipPlane[j].fValid == true)
3773	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3774	}
3775
3776	/* Reprogram the light data. */
3777	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3778	{
3779	if (pContext->state.aLightData[j].fValidData == true)
3780	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3781	}
3782	}
3783
3784	return VINF_SUCCESS;
3785	}
3786
3787	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3788	{
3789	PVMSVGA3DCONTEXT pContext;
3790	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3791	AssertReturn(pState, VERR_NO_MEMORY);
3792
3793	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3794
3795	if ( cid >= pState->cContexts
3796	\|\| pState->papContexts[cid]->id != cid)
3797	{
3798	Log(("vmsvga3dSetZRange invalid context id!\n"));
3799	return VERR_INVALID_PARAMETER;
3800	}
3801	pContext = pState->papContexts[cid];
3802	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3803
3804	pContext->state.zRange = zRange;
3805	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3806
3807	if (zRange.min < -1.0)
3808	zRange.min = -1.0;
3809	if (zRange.max > 1.0)
3810	zRange.max = 1.0;
3811
3812	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3813	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3814	return VINF_SUCCESS;
3815	}
3816
3817	/**
3818	* Convert SVGA blend op value to its OpenGL equivalent
3819	*/
3820	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3821	{
3822	switch (blendOp)
3823	{
3824	case SVGA3D_BLENDOP_ZERO:
3825	return GL_ZERO;
3826	case SVGA3D_BLENDOP_ONE:
3827	return GL_ONE;
3828	case SVGA3D_BLENDOP_SRCCOLOR:
3829	return GL_SRC_COLOR;
3830	case SVGA3D_BLENDOP_INVSRCCOLOR:
3831	return GL_ONE_MINUS_SRC_COLOR;
3832	case SVGA3D_BLENDOP_SRCALPHA:
3833	return GL_SRC_ALPHA;
3834	case SVGA3D_BLENDOP_INVSRCALPHA:
3835	return GL_ONE_MINUS_SRC_ALPHA;
3836	case SVGA3D_BLENDOP_DESTALPHA:
3837	return GL_DST_ALPHA;
3838	case SVGA3D_BLENDOP_INVDESTALPHA:
3839	return GL_ONE_MINUS_DST_ALPHA;
3840	case SVGA3D_BLENDOP_DESTCOLOR:
3841	return GL_DST_COLOR;
3842	case SVGA3D_BLENDOP_INVDESTCOLOR:
3843	return GL_ONE_MINUS_DST_COLOR;
3844	case SVGA3D_BLENDOP_SRCALPHASAT:
3845	return GL_SRC_ALPHA_SATURATE;
3846	case SVGA3D_BLENDOP_BLENDFACTOR:
3847	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3848	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3849	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3850	default:
3851	AssertFailed();
3852	return GL_ONE;
3853	}
3854	}
3855
3856	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3857	{
3858	switch (blendEq)
3859	{
3860	case SVGA3D_BLENDEQ_ADD:
3861	return GL_FUNC_ADD;
3862	case SVGA3D_BLENDEQ_SUBTRACT:
3863	return GL_FUNC_SUBTRACT;
3864	case SVGA3D_BLENDEQ_REVSUBTRACT:
3865	return GL_FUNC_REVERSE_SUBTRACT;
3866	case SVGA3D_BLENDEQ_MINIMUM:
3867	return GL_MIN;
3868	case SVGA3D_BLENDEQ_MAXIMUM:
3869	return GL_MAX;
3870	default:
3871	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3872	return GL_FUNC_ADD;
3873	}
3874	}
3875
3876	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3877	{
3878	switch (cmpFunc)
3879	{
3880	case SVGA3D_CMP_NEVER:
3881	return GL_NEVER;
3882	case SVGA3D_CMP_LESS:
3883	return GL_LESS;
3884	case SVGA3D_CMP_EQUAL:
3885	return GL_EQUAL;
3886	case SVGA3D_CMP_LESSEQUAL:
3887	return GL_LEQUAL;
3888	case SVGA3D_CMP_GREATER:
3889	return GL_GREATER;
3890	case SVGA3D_CMP_NOTEQUAL:
3891	return GL_NOTEQUAL;
3892	case SVGA3D_CMP_GREATEREQUAL:
3893	return GL_GEQUAL;
3894	case SVGA3D_CMP_ALWAYS:
3895	return GL_ALWAYS;
3896	default:
3897	AssertFailed();
3898	return GL_LESS;
3899	}
3900	}
3901
3902	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3903	{
3904	switch (stencilOp)
3905	{
3906	case SVGA3D_STENCILOP_KEEP:
3907	return GL_KEEP;
3908	case SVGA3D_STENCILOP_ZERO:
3909	return GL_ZERO;
3910	case SVGA3D_STENCILOP_REPLACE:
3911	return GL_REPLACE;
3912	case SVGA3D_STENCILOP_INCRSAT:
3913	return GL_INCR_WRAP;
3914	case SVGA3D_STENCILOP_DECRSAT:
3915	return GL_DECR_WRAP;
3916	case SVGA3D_STENCILOP_INVERT:
3917	return GL_INVERT;
3918	case SVGA3D_STENCILOP_INCR:
3919	return GL_INCR;
3920	case SVGA3D_STENCILOP_DECR:
3921	return GL_DECR;
3922	default:
3923	AssertFailed();
3924	return GL_KEEP;
3925	}
3926	}
3927
3928	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3929	{
3930	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3931	PVMSVGA3DCONTEXT pContext;
3932	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3933	AssertReturn(pState, VERR_NO_MEMORY);
3934
3935	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3936
3937	if ( cid >= pState->cContexts
3938	\|\| pState->papContexts[cid]->id != cid)
3939	{
3940	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3941	return VERR_INVALID_PARAMETER;
3942	}
3943	pContext = pState->papContexts[cid];
3944	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3945
3946	for (unsigned i = 0; i < cRenderStates; i++)
3947	{
3948	GLenum enableCap = ~(GLenum)0;
3949	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3950	/* Save the render state for vm state saving. */
3951	if (pRenderState[i].state < SVGA3D_RS_MAX)
3952	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3953
3954	switch (pRenderState[i].state)
3955	{
3956	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3957	enableCap = GL_DEPTH_TEST;
3958	val = pRenderState[i].uintValue;
3959	break;
3960
3961	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3962	glDepthMask(!!pRenderState[i].uintValue);
3963	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3964	break;
3965
3966	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3967	enableCap = GL_ALPHA_TEST;
3968	val = pRenderState[i].uintValue;
3969	break;
3970
3971	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3972	enableCap = GL_DITHER;
3973	val = pRenderState[i].uintValue;
3974	break;
3975
3976	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3977	enableCap = GL_FOG;
3978	val = pRenderState[i].uintValue;
3979	break;
3980
3981	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3982	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3983	break;
3984
3985	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3986	enableCap = GL_LIGHTING;
3987	val = pRenderState[i].uintValue;
3988	break;
3989
3990	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3991	/* not applicable */
3992	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3993	break;
3994
3995	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3996	enableCap = GL_POINT_SPRITE_ARB;
3997	val = pRenderState[i].uintValue;
3998	break;
3999
4000	case SVGA3D_RS_POINTSIZE: /* float */
4001	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4002	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4003	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4004	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4005	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4006
4007	glPointSize(pRenderState[i].floatValue);
4008	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4009	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4010	break;
4011
4012	case SVGA3D_RS_POINTSIZEMIN: /* float */
4013	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4014	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4015	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4016	break;
4017
4018	case SVGA3D_RS_POINTSIZEMAX: /* float */
4019	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4020	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4021	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4022	break;
4023
4024	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4025	case SVGA3D_RS_POINTSCALE_A: /* float */
4026	case SVGA3D_RS_POINTSCALE_B: /* float */
4027	case SVGA3D_RS_POINTSCALE_C: /* float */
4028	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4029	break;
4030
4031	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4032	{
4033	GLfloat color[4]; /* red, green, blue, alpha */
4034
4035	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4036
4037	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4038	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4039	break;
4040	}
4041
4042	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4043	{
4044	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4045	for (uint32_t j = 0; j <= 5; j++)
4046	{
4047	if (pRenderState[i].uintValue & RT_BIT(j))
4048	glEnable(GL_CLIP_PLANE0 + j);
4049	else
4050	glDisable(GL_CLIP_PLANE0 + j);
4051	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4052	}
4053	break;
4054	}
4055
4056	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4057	{
4058	GLfloat color[4]; /* red, green, blue, alpha */
4059
4060	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4061
4062	glFogfv(GL_FOG_COLOR, color);
4063	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4064	break;
4065	}
4066
4067	case SVGA3D_RS_FOGSTART: /* float */
4068	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4069	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4070	break;
4071
4072	case SVGA3D_RS_FOGEND: /* float */
4073	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4074	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4075	break;
4076
4077	case SVGA3D_RS_FOGDENSITY: /* float */
4078	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4079	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4080	break;
4081
4082	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4083	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4085	break;
4086
4087	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4088	{
4089	SVGA3dFogMode mode;
4090	mode.uintValue = pRenderState[i].uintValue;
4091
4092	enableCap = GL_FOG_MODE;
4093	switch (mode.s.function)
4094	{
4095	case SVGA3D_FOGFUNC_EXP:
4096	val = GL_EXP;
4097	break;
4098	case SVGA3D_FOGFUNC_EXP2:
4099	val = GL_EXP2;
4100	break;
4101	case SVGA3D_FOGFUNC_LINEAR:
4102	val = GL_LINEAR;
4103	break;
4104	default:
4105	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4106	break;
4107	}
4108
4109	/** @todo how to switch between vertex and pixel fog modes??? */
4110	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4111	#if 0
4112	/* The fog type determines the render state. */
4113	switch (mode.s.type)
4114	{
4115	case SVGA3D_FOGTYPE_VERTEX:
4116	renderState = D3DRS_FOGVERTEXMODE;
4117	break;
4118	case SVGA3D_FOGTYPE_PIXEL:
4119	renderState = D3DRS_FOGTABLEMODE;
4120	break;
4121	default:
4122	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4123	break;
4124	}
4125	#endif
4126
4127	/* Set the fog base to depth or range. */
4128	switch (mode.s.base)
4129	{
4130	case SVGA3D_FOGBASE_DEPTHBASED:
4131	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4132	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4133	break;
4134	case SVGA3D_FOGBASE_RANGEBASED:
4135	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4137	break;
4138	default:
4139	/* ignore */
4140	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4141	break;
4142	}
4143	break;
4144	}
4145
4146	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4147	{
4148	SVGA3dFillMode mode;
4149
4150	mode.uintValue = pRenderState[i].uintValue;
4151
4152	switch (mode.s.mode)
4153	{
4154	case SVGA3D_FILLMODE_POINT:
4155	val = GL_POINT;
4156	break;
4157	case SVGA3D_FILLMODE_LINE:
4158	val = GL_LINE;
4159	break;
4160	case SVGA3D_FILLMODE_FILL:
4161	val = GL_FILL;
4162	break;
4163	default:
4164	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4165	break;
4166	}
4167	/* @note only front and back faces */
4168	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4169	glPolygonMode(GL_FRONT_AND_BACK, val);
4170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4171	break;
4172	}
4173
4174	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4175	switch (pRenderState[i].uintValue)
4176	{
4177	case SVGA3D_SHADEMODE_FLAT:
4178	val = GL_FLAT;
4179	break;
4180
4181	case SVGA3D_SHADEMODE_SMOOTH:
4182	val = GL_SMOOTH;
4183	break;
4184
4185	default:
4186	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4187	break;
4188	}
4189
4190	glShadeModel(val);
4191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4192	break;
4193
4194	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4195	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4196	/** @todo */
4197	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4198	/*
4199	renderState = D3DRS_LINEPATTERN;
4200	val = pRenderState[i].uintValue;
4201	*/
4202	break;
4203
4204	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4205	enableCap = GL_LINE_SMOOTH;
4206	val = pRenderState[i].uintValue;
4207	break;
4208
4209	case SVGA3D_RS_LINEWIDTH: /* float */
4210	glLineWidth(pRenderState[i].floatValue);
4211	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4212	break;
4213
4214	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4215	{
4216	/* Refresh the blending state based on the new enable setting. */
4217	SVGA3dRenderState renderstate[2];
4218
4219	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4220	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4221	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4222	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4223
4224	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4225	AssertRCReturn(rc, rc);
4226
4227	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4228	continue; /* ignore if blend is already enabled */
4229	} RT_FALL_THRU();
4230
4231	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4232	enableCap = GL_BLEND;
4233	val = pRenderState[i].uintValue;
4234	break;
4235
4236	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4237	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4238	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4239	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4240	{
4241	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4242	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4243
4244	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4246	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4247	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4248	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4249	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4250	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4251	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4252
4253	switch (pRenderState[i].state)
4254	{
4255	case SVGA3D_RS_SRCBLEND:
4256	srcRGB = blendop;
4257	break;
4258	case SVGA3D_RS_DSTBLEND:
4259	dstRGB = blendop;
4260	break;
4261	case SVGA3D_RS_SRCBLENDALPHA:
4262	srcAlpha = blendop;
4263	break;
4264	case SVGA3D_RS_DSTBLENDALPHA:
4265	dstAlpha = blendop;
4266	break;
4267	default:
4268	/* not possible; shut up gcc */
4269	AssertFailed();
4270	break;
4271	}
4272
4273	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4274	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4275	else
4276	glBlendFunc(srcRGB, dstRGB);
4277	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4278	break;
4279	}
4280
4281	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4282	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4283	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4284	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4285	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4286	else
4287	{
4288	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4289	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4290	#else
4291	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4292	#endif
4293	}
4294	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4295	break;
4296
4297	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4298	{
4299	GLfloat red, green, blue, alpha;
4300
4301	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4302
4303	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4304	glBlendColor(red, green, blue, alpha);
4305	#else
4306	pState->ext.glBlendColor(red, green, blue, alpha);
4307	#endif
4308	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4309	break;
4310	}
4311
4312	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4313	{
4314	GLenum mode = GL_BACK; /* default for OpenGL */
4315
4316	switch (pRenderState[i].uintValue)
4317	{
4318	case SVGA3D_FACE_NONE:
4319	break;
4320	case SVGA3D_FACE_FRONT:
4321	mode = GL_FRONT;
4322	break;
4323	case SVGA3D_FACE_BACK:
4324	mode = GL_BACK;
4325	break;
4326	case SVGA3D_FACE_FRONT_BACK:
4327	mode = GL_FRONT_AND_BACK;
4328	break;
4329	default:
4330	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4331	break;
4332	}
4333	enableCap = GL_CULL_FACE;
4334	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4335	{
4336	glCullFace(mode);
4337	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4338	val = 1;
4339	}
4340	else
4341	val = 0;
4342	break;
4343	}
4344
4345	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4346	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4347	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4348	break;
4349
4350	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4351	{
4352	GLclampf ref;
4353
4354	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4355	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4356	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4357	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4358	break;
4359	}
4360
4361	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4362	{
4363	GLint func;
4364
4365	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4366	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4367	glAlphaFunc(func, pRenderState[i].floatValue);
4368	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4369	break;
4370	}
4371
4372	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4373	enableCap = GL_STENCIL_TEST;
4374	val = pRenderState[i].uintValue;
4375	break;
4376
4377	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4378	case SVGA3D_RS_STENCILREF: /* uint32_t */
4379	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4380	{
4381	GLint func, ref;
4382	GLuint mask;
4383
4384	glGetIntegerv(GL_STENCIL_FUNC, &func);
4385	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4386	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4387	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4388	glGetIntegerv(GL_STENCIL_REF, &ref);
4389	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4390
4391	switch (pRenderState[i].state)
4392	{
4393	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4394	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4395	break;
4396
4397	case SVGA3D_RS_STENCILREF: /* uint32_t */
4398	ref = pRenderState[i].uintValue;
4399	break;
4400
4401	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4402	mask = pRenderState[i].uintValue;
4403	break;
4404
4405	default:
4406	/* not possible; shut up gcc */
4407	AssertFailed();
4408	break;
4409	}
4410
4411	glStencilFunc(func, ref, mask);
4412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4413	break;
4414	}
4415
4416	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4417	glStencilMask(pRenderState[i].uintValue);
4418	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4419	break;
4420
4421	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4422	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4423	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4424	{
4425	GLint sfail, dpfail, dppass;
4426	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4427
4428	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4429	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4430	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4431	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4432	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4433	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4434
4435	switch (pRenderState[i].state)
4436	{
4437	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4438	sfail = stencilop;
4439	break;
4440	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4441	dpfail = stencilop;
4442	break;
4443	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4444	dppass = stencilop;
4445	break;
4446	default:
4447	/* not possible; shut up gcc */
4448	AssertFailed();
4449	break;
4450	}
4451	glStencilOp(sfail, dpfail, dppass);
4452	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4453	break;
4454	}
4455
4456	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4457	/* @note GL_EXT_stencil_two_side required! */
4458	if (pState->ext.fEXT_stencil_two_side)
4459	{
4460	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4461	val = pRenderState[i].uintValue;
4462	}
4463	else
4464	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4465	break;
4466
4467	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4468	{
4469	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4470	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4471	*/
4472	GLint ref;
4473	GLuint mask;
4474
4475	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4476	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4477	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4479
4480	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4481	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4482	break;
4483	}
4484
4485	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4486	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4487	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4488	{
4489	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4490	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4491	*/
4492	GLint sfail, dpfail, dppass;
4493	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4494
4495	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4496	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4497	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4498	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4499	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4500	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4501
4502	switch (pRenderState[i].state)
4503	{
4504	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4505	sfail = stencilop;
4506	break;
4507	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4508	dpfail = stencilop;
4509	break;
4510	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4511	dppass = stencilop;
4512	break;
4513	default:
4514	/* not possible; shut up gcc */
4515	AssertFailed();
4516	break;
4517	}
4518	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4519	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4520	break;
4521	}
4522
4523	case SVGA3D_RS_ZBIAS: /* float */
4524	/** @todo unknown meaning; depth bias is not identical
4525	renderState = D3DRS_DEPTHBIAS;
4526	val = pRenderState[i].uintValue;
4527	*/
4528	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4529	break;
4530
4531	case SVGA3D_RS_DEPTHBIAS: /* float */
4532	{
4533	GLfloat factor;
4534
4535	/** @todo not sure if the d3d & ogl definitions are identical. */
4536
4537	/* Do not change the factor part. */
4538	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4539	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4540
4541	glPolygonOffset(factor, pRenderState[i].floatValue);
4542	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4543	break;
4544	}
4545
4546	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4547	{
4548	GLfloat units;
4549
4550	/** @todo not sure if the d3d & ogl definitions are identical. */
4551
4552	/* Do not change the factor part. */
4553	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4554	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4555
4556	glPolygonOffset(pRenderState[i].floatValue, units);
4557	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4558	break;
4559	}
4560
4561	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4562	{
4563	GLboolean red, green, blue, alpha;
4564	SVGA3dColorMask mask;
4565
4566	mask.uintValue = pRenderState[i].uintValue;
4567
4568	red = mask.s.red;
4569	green = mask.s.green;
4570	blue = mask.s.blue;
4571	alpha = mask.s.alpha;
4572
4573	glColorMask(red, green, blue, alpha);
4574	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4575	break;
4576	}
4577
4578	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4579	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4580	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4581	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4582	break;
4583
4584	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4585	enableCap = GL_SCISSOR_TEST;
4586	val = pRenderState[i].uintValue;
4587	break;
4588
4589	#if 0
4590	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4591	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4592	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4593	val = pRenderState[i].uintValue;
4594	break;
4595
4596	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4597	renderState = D3DRS_SPECULARMATERIALSOURCE;
4598	val = pRenderState[i].uintValue;
4599	break;
4600
4601	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4602	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4603	val = pRenderState[i].uintValue;
4604	break;
4605
4606	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4607	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4608	val = pRenderState[i].uintValue;
4609	break;
4610	#endif
4611
4612	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4613	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4614	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4615	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4616	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4617	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4618	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4619	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4620	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4621	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4622	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4623	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4624	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4625	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4626	break;
4627
4628	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4629	case SVGA3D_RS_TWEENFACTOR: /* float */
4630	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4631	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4632	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4633	break;
4634
4635	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4636	enableCap = GL_MULTISAMPLE;
4637	val = pRenderState[i].uintValue;
4638	break;
4639
4640	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4641	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4642	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4643	break;
4644
4645	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4646	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4647	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4648	/*
4649	renderState = D3DRS_COORDINATETYPE;
4650	val = pRenderState[i].uintValue;
4651	*/
4652	break;
4653
4654	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4655	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4656	/* Invert the selected mode because of y-inversion (?) */
4657	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4659	break;
4660
4661	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4662	//AssertFailed();
4663	/*
4664	D3DRS_SRGBWRITEENABLE ??
4665	renderState = D3DRS_OUTPUTGAMMA;
4666	val = pRenderState[i].uintValue;
4667	*/
4668	break;
4669
4670	#if 0
4671
4672	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4673	//AssertFailed();
4674	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4675	val = pRenderState[i].uintValue;
4676	break;
4677
4678	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4679	renderState = D3DRS_TEXTUREFACTOR;
4680	val = pRenderState[i].uintValue;
4681	break;
4682
4683	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4684	renderState = D3DRS_LOCALVIEWER;
4685	val = pRenderState[i].uintValue;
4686	break;
4687
4688	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4689	AssertFailed();
4690	/*
4691	renderState = D3DRS_ZVISIBLE;
4692	val = pRenderState[i].uintValue;
4693	*/
4694	break;
4695
4696	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4697	renderState = D3DRS_CLIPPING;
4698	val = pRenderState[i].uintValue;
4699	break;
4700
4701	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4702	glTexParameter GL_TEXTURE_WRAP_S
4703	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4704	renderState = D3DRS_WRAP0;
4705	val = pRenderState[i].uintValue;
4706	break;
4707
4708	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4709	glTexParameter GL_TEXTURE_WRAP_T
4710	renderState = D3DRS_WRAP1;
4711	val = pRenderState[i].uintValue;
4712	break;
4713
4714	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4715	glTexParameter GL_TEXTURE_WRAP_R
4716	renderState = D3DRS_WRAP2;
4717	val = pRenderState[i].uintValue;
4718	break;
4719
4720
4721	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4722	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4723	val = pRenderState[i].uintValue;
4724	break;
4725
4726
4727	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4728	renderState = D3DRS_BLENDOPALPHA;
4729	val = pRenderState[i].uintValue;
4730	break;
4731
4732	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4733	AssertFailed();
4734	/*
4735	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4736	val = pRenderState[i].uintValue;
4737	*/
4738	break;
4739
4740	#endif
4741	default:
4742	AssertFailed();
4743	break;
4744	}
4745
4746	if (enableCap != ~(GLenum)0)
4747	{
4748	if (val)
4749	glEnable(enableCap);
4750	else
4751	glDisable(enableCap);
4752	}
4753	}
4754
4755	return VINF_SUCCESS;
4756	}
4757
4758	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4759	{
4760	PVMSVGA3DCONTEXT pContext;
4761	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4762	PVMSVGA3DSURFACE pRenderTarget;
4763
4764	AssertReturn(pState, VERR_NO_MEMORY);
4765	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4766	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4767
4768	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4769
4770	if ( cid >= pState->cContexts
4771	\|\| pState->papContexts[cid]->id != cid)
4772	{
4773	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4774	return VERR_INVALID_PARAMETER;
4775	}
4776	pContext = pState->papContexts[cid];
4777	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4778
4779	/* Save for vm state save/restore. */
4780	pContext->state.aRenderTargets[type] = target.sid;
4781
4782	if (target.sid == SVGA3D_INVALID_ID)
4783	{
4784	/* Disable render target. */
4785	switch (type)
4786	{
4787	case SVGA3D_RT_DEPTH:
4788	case SVGA3D_RT_STENCIL:
4789	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4790	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4791	break;
4792
4793	case SVGA3D_RT_COLOR0:
4794	case SVGA3D_RT_COLOR1:
4795	case SVGA3D_RT_COLOR2:
4796	case SVGA3D_RT_COLOR3:
4797	case SVGA3D_RT_COLOR4:
4798	case SVGA3D_RT_COLOR5:
4799	case SVGA3D_RT_COLOR6:
4800	case SVGA3D_RT_COLOR7:
4801	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4802	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4803	break;
4804
4805	default:
4806	AssertFailedReturn(VERR_INVALID_PARAMETER);
4807	}
4808	return VINF_SUCCESS;
4809	}
4810
4811	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4812	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4813	pRenderTarget = pState->papSurfaces[target.sid];
4814
4815	switch (type)
4816	{
4817	case SVGA3D_RT_DEPTH:
4818	case SVGA3D_RT_STENCIL:
4819	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4820	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4821	{
4822	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4823	pContext = &pState->SharedCtx;
4824	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4825
4826	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828
4829	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4830	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4831
4832	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4833	pRenderTarget->internalFormatGL,
4834	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4835	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4836	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4837
4838	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4840
4841	pContext = pState->papContexts[cid];
4842	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4843	pRenderTarget->idWeakContextAssociation = cid;
4844	}
4845
4846	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4847	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4848	Assert(!pRenderTarget->fDirty);
4849	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4850
4851	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4852
4853	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4854	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4855	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4856	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4857	break;
4858
4859	case SVGA3D_RT_COLOR0:
4860	case SVGA3D_RT_COLOR1:
4861	case SVGA3D_RT_COLOR2:
4862	case SVGA3D_RT_COLOR3:
4863	case SVGA3D_RT_COLOR4:
4864	case SVGA3D_RT_COLOR5:
4865	case SVGA3D_RT_COLOR6:
4866	case SVGA3D_RT_COLOR7:
4867	{
4868	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4869	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4870	{
4871	Log(("vmsvga3dSetRenderTarget: create texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4872	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4873	AssertRCReturn(rc, rc);
4874	}
4875
4876	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4877	Assert(!pRenderTarget->fDirty);
4878
4879	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4880
4881	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4883
4884	#ifdef DEBUG
4885	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4886	if (status != GL_FRAMEBUFFER_COMPLETE)
4887	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4888	#endif
4889	/** @todo use glDrawBuffers too? */
4890	break;
4891	}
4892
4893	default:
4894	AssertFailedReturn(VERR_INVALID_PARAMETER);
4895	}
4896
4897	return VINF_SUCCESS;
4898	}
4899
4900	#if 0
4901	/**
4902	* Convert SVGA texture combiner value to its D3D equivalent
4903	*/
4904	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4905	{
4906	switch (value)
4907	{
4908	case SVGA3D_TC_DISABLE:
4909	return D3DTOP_DISABLE;
4910	case SVGA3D_TC_SELECTARG1:
4911	return D3DTOP_SELECTARG1;
4912	case SVGA3D_TC_SELECTARG2:
4913	return D3DTOP_SELECTARG2;
4914	case SVGA3D_TC_MODULATE:
4915	return D3DTOP_MODULATE;
4916	case SVGA3D_TC_ADD:
4917	return D3DTOP_ADD;
4918	case SVGA3D_TC_ADDSIGNED:
4919	return D3DTOP_ADDSIGNED;
4920	case SVGA3D_TC_SUBTRACT:
4921	return D3DTOP_SUBTRACT;
4922	case SVGA3D_TC_BLENDTEXTUREALPHA:
4923	return D3DTOP_BLENDTEXTUREALPHA;
4924	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4925	return D3DTOP_BLENDDIFFUSEALPHA;
4926	case SVGA3D_TC_BLENDCURRENTALPHA:
4927	return D3DTOP_BLENDCURRENTALPHA;
4928	case SVGA3D_TC_BLENDFACTORALPHA:
4929	return D3DTOP_BLENDFACTORALPHA;
4930	case SVGA3D_TC_MODULATE2X:
4931	return D3DTOP_MODULATE2X;
4932	case SVGA3D_TC_MODULATE4X:
4933	return D3DTOP_MODULATE4X;
4934	case SVGA3D_TC_DSDT:
4935	AssertFailed(); /** @todo ??? */
4936	return D3DTOP_DISABLE;
4937	case SVGA3D_TC_DOTPRODUCT3:
4938	return D3DTOP_DOTPRODUCT3;
4939	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4940	return D3DTOP_BLENDTEXTUREALPHAPM;
4941	case SVGA3D_TC_ADDSIGNED2X:
4942	return D3DTOP_ADDSIGNED2X;
4943	case SVGA3D_TC_ADDSMOOTH:
4944	return D3DTOP_ADDSMOOTH;
4945	case SVGA3D_TC_PREMODULATE:
4946	return D3DTOP_PREMODULATE;
4947	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4948	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4949	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4950	return D3DTOP_MODULATECOLOR_ADDALPHA;
4951	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4952	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4953	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4954	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4955	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4956	return D3DTOP_BUMPENVMAPLUMINANCE;
4957	case SVGA3D_TC_MULTIPLYADD:
4958	return D3DTOP_MULTIPLYADD;
4959	case SVGA3D_TC_LERP:
4960	return D3DTOP_LERP;
4961	default:
4962	AssertFailed();
4963	return D3DTOP_DISABLE;
4964	}
4965	}
4966
4967	/**
4968	* Convert SVGA texture arg data value to its D3D equivalent
4969	*/
4970	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4971	{
4972	switch (value)
4973	{
4974	case SVGA3D_TA_CONSTANT:
4975	return D3DTA_CONSTANT;
4976	case SVGA3D_TA_PREVIOUS:
4977	return D3DTA_CURRENT; /* current = previous */
4978	case SVGA3D_TA_DIFFUSE:
4979	return D3DTA_DIFFUSE;
4980	case SVGA3D_TA_TEXTURE:
4981	return D3DTA_TEXTURE;
4982	case SVGA3D_TA_SPECULAR:
4983	return D3DTA_SPECULAR;
4984	default:
4985	AssertFailed();
4986	return 0;
4987	}
4988	}
4989
4990	/**
4991	* Convert SVGA texture transform flag value to its D3D equivalent
4992	*/
4993	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4994	{
4995	switch (value)
4996	{
4997	case SVGA3D_TEX_TRANSFORM_OFF:
4998	return D3DTTFF_DISABLE;
4999	case SVGA3D_TEX_TRANSFORM_S:
5000	return D3DTTFF_COUNT1; /** @todo correct? */
5001	case SVGA3D_TEX_TRANSFORM_T:
5002	return D3DTTFF_COUNT2; /** @todo correct? */
5003	case SVGA3D_TEX_TRANSFORM_R:
5004	return D3DTTFF_COUNT3; /** @todo correct? */
5005	case SVGA3D_TEX_TRANSFORM_Q:
5006	return D3DTTFF_COUNT4; /** @todo correct? */
5007	case SVGA3D_TEX_PROJECTED:
5008	return D3DTTFF_PROJECTED;
5009	default:
5010	AssertFailed();
5011	return 0;
5012	}
5013	}
5014	#endif
5015
5016	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5017	{
5018	switch (value)
5019	{
5020	case SVGA3D_TEX_ADDRESS_WRAP:
5021	return GL_REPEAT;
5022	case SVGA3D_TEX_ADDRESS_MIRROR:
5023	return GL_MIRRORED_REPEAT;
5024	case SVGA3D_TEX_ADDRESS_CLAMP:
5025	return GL_CLAMP_TO_EDGE;
5026	case SVGA3D_TEX_ADDRESS_BORDER:
5027	return GL_CLAMP_TO_BORDER;
5028	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5029	AssertFailed();
5030	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5031
5032	case SVGA3D_TEX_ADDRESS_EDGE:
5033	case SVGA3D_TEX_ADDRESS_INVALID:
5034	default:
5035	AssertFailed();
5036	return GL_REPEAT; /* default */
5037	}
5038	}
5039
5040	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5041	{
5042	switch (value)
5043	{
5044	case SVGA3D_TEX_FILTER_NONE:
5045	case SVGA3D_TEX_FILTER_LINEAR:
5046	return GL_LINEAR;
5047	case SVGA3D_TEX_FILTER_NEAREST:
5048	return GL_NEAREST;
5049	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5050	/** @todo */
5051	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5052	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5053	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5054	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5055	default:
5056	AssertFailed();
5057	return GL_LINEAR; /* default */
5058	}
5059	}
5060
5061	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5062	{
5063	/* flip the red and blue bytes */
5064	uint8_t blue = value & 0xff;
5065	uint8_t red = (value >> 16) & 0xff;
5066	return (value & 0xff00ff00) \| red \| (blue << 16);
5067	}
5068
5069	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5070	{
5071	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5072	GLenum currentStage = ~(GLenum)0;
5073	PVMSVGA3DCONTEXT pContext;
5074	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5075	AssertReturn(pState, VERR_NO_MEMORY);
5076
5077	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5078
5079	if ( cid >= pState->cContexts
5080	\|\| pState->papContexts[cid]->id != cid)
5081	{
5082	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5083	return VERR_INVALID_PARAMETER;
5084	}
5085	pContext = pState->papContexts[cid];
5086	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5087
5088	for (unsigned i = 0; i < cTextureStates; i++)
5089	{
5090	GLenum textureType = ~(GLenum)0;
5091	#if 0
5092	GLenum samplerType = ~(GLenum)0;
5093	#endif
5094
5095	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));
5096	/* Record the texture state for vm state saving. */
5097	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5098	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5099	{
5100	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5101	}
5102
5103	/* Active the right texture unit for subsequent texture state changes. */
5104	if (pTextureState[i].stage != currentStage \|\| i == 0)
5105	{
5106	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5107	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5108	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5109	{
5110	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5111	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5112	currentStage = pTextureState[i].stage;
5113	}
5114	else
5115	{
5116	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5117	continue;
5118	}
5119	}
5120
5121	switch (pTextureState[i].name)
5122	{
5123	case SVGA3D_TS_BUMPENVMAT00: /* float */
5124	case SVGA3D_TS_BUMPENVMAT01: /* float */
5125	case SVGA3D_TS_BUMPENVMAT10: /* float */
5126	case SVGA3D_TS_BUMPENVMAT11: /* float */
5127	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5128	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5129	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5130	break;
5131
5132	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5133	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5134	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5135	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5136	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5137	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5138	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5139	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5140	/** @todo not used by MesaGL */
5141	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5142	break;
5143	#if 0
5144
5145	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5146	textureType = D3DTSS_TEXCOORDINDEX;
5147	val = pTextureState[i].value;
5148	break;
5149
5150	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5151	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5152	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5153	break;
5154	#endif
5155
5156	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5157	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5158	{
5159	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5160	currentStage, pTextureState[i].value, pContext->aSidActiveTextures[currentStage]));
5161
5162	pContext->aSidActiveTextures[currentStage] = SVGA3D_INVALID_ID;
5163	/* Unselect the currently associated texture. */
5164	glBindTexture(GL_TEXTURE_2D, 0);
5165	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5166	/* Necessary for the fixed pipeline. */
5167	glDisable(GL_TEXTURE_2D);
5168	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5169	}
5170	else
5171	{
5172	uint32_t sid = pTextureState[i].value;
5173
5174	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5175	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5176
5177	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5178
5179	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5180	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].mipmapSize.width,
5181	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5182
5183	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5184	{
5185	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5186	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5187	AssertRCReturn(rc, rc);
5188	}
5189
5190	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5192
5193	/* Necessary for the fixed pipeline. */
5194	glEnable(GL_TEXTURE_2D);
5195	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5196
5197	if (pContext->aSidActiveTextures[currentStage] != sid)
5198	{
5199	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5200	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5201	{
5202	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5203	{
5204	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5205
5206	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5207	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5208	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5209	}
5210	}
5211	}
5212	pContext->aSidActiveTextures[currentStage] = sid;
5213	}
5214	/* Finished; continue with the next one. */
5215	continue;
5216
5217	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5218	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5219	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5220	break;
5221
5222	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5223	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5224	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5225	break;
5226
5227	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5228	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5229	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5230	break;
5231
5232	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5233	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5234	{
5235	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5236	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5237
5238	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5239	textureType = GL_TEXTURE_MIN_FILTER;
5240	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5241	{
5242	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5243	{
5244	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5245	val = GL_NEAREST_MIPMAP_LINEAR;
5246	else
5247	val = GL_NEAREST_MIPMAP_NEAREST;
5248	}
5249	else
5250	{
5251	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5252	val = GL_LINEAR_MIPMAP_LINEAR;
5253	else
5254	val = GL_LINEAR_MIPMAP_NEAREST;
5255	}
5256	}
5257	else
5258	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5259	break;
5260	}
5261
5262	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5263	textureType = GL_TEXTURE_MAG_FILTER;
5264	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5265	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5266	break;
5267
5268	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5269	{
5270	GLfloat color[4]; /* red, green, blue, alpha */
5271
5272	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5273
5274	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5275	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5276	break;
5277	}
5278
5279	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5280	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5281	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5282	break;
5283
5284	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5285	textureType = GL_TEXTURE_BASE_LEVEL;
5286	val = pTextureState[i].value;
5287	break;
5288
5289	#if 0
5290	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5291	samplerType = D3DSAMP_MAXANISOTROPY;
5292	val = pTextureState[i].value; /* Identical?? */
5293	break;
5294
5295	case SVGA3D_TS_GAMMA: /* float */
5296	samplerType = D3DSAMP_SRGBTEXTURE;
5297	/* Boolean in D3D */
5298	if (pTextureState[i].floatValue == 1.0f)
5299	val = FALSE;
5300	else
5301	val = TRUE;
5302	break;
5303	#endif
5304	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5305	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5306	AssertFailed();
5307	break;
5308
5309	default:
5310	//AssertFailed();
5311	break;
5312	}
5313
5314	if (textureType != ~(GLenum)0)
5315	{
5316	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5317	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5318	}
5319	}
5320
5321	return VINF_SUCCESS;
5322	}
5323
5324	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5325	{
5326	PVMSVGA3DCONTEXT pContext;
5327	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5328	AssertReturn(pState, VERR_NO_MEMORY);
5329	GLenum oglFace;
5330
5331	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5332
5333	if ( cid >= pState->cContexts
5334	\|\| pState->papContexts[cid]->id != cid)
5335	{
5336	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5337	return VERR_INVALID_PARAMETER;
5338	}
5339	pContext = pState->papContexts[cid];
5340	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5341
5342	switch (face)
5343	{
5344	case SVGA3D_FACE_NONE:
5345	case SVGA3D_FACE_FRONT:
5346	oglFace = GL_FRONT;
5347	break;
5348
5349	case SVGA3D_FACE_BACK:
5350	oglFace = GL_BACK;
5351	break;
5352
5353	case SVGA3D_FACE_FRONT_BACK:
5354	oglFace = GL_FRONT_AND_BACK;
5355	break;
5356
5357	default:
5358	AssertFailedReturn(VERR_INVALID_PARAMETER);
5359	}
5360
5361	/* Save for vm state save/restore. */
5362	pContext->state.aMaterial[face].fValid = true;
5363	pContext->state.aMaterial[face].material = *pMaterial;
5364	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5365
5366	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5367	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5368	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5369	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5370	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5371	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5372
5373	return VINF_SUCCESS;
5374	}
5375
5376	/** @todo Move into separate library as we are using logic from Wine here. */
5377	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5378	{
5379	PVMSVGA3DCONTEXT pContext;
5380	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5381	AssertReturn(pState, VERR_NO_MEMORY);
5382	float QuadAttenuation;
5383
5384	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5385
5386	if ( cid >= pState->cContexts
5387	\|\| pState->papContexts[cid]->id != cid)
5388	{
5389	Log(("vmsvga3dSetLightData invalid context id!\n"));
5390	return VERR_INVALID_PARAMETER;
5391	}
5392	pContext = pState->papContexts[cid];
5393	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5394
5395	/* Store for vm state save/restore */
5396	if (index < SVGA3D_MAX_LIGHTS)
5397	{
5398	pContext->state.aLightData[index].fValidData = true;
5399	pContext->state.aLightData[index].data = *pData;
5400	}
5401	else
5402	AssertFailed();
5403
5404	if ( pData->attenuation0 < 0.0f
5405	\|\| pData->attenuation1 < 0.0f
5406	\|\| pData->attenuation2 < 0.0f)
5407	{
5408	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5409	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5410	}
5411
5412	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5413	glMatrixMode(GL_MODELVIEW);
5414	glPushMatrix();
5415	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5416
5417	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5418	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5419	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5420
5421	if (pData->range * pData->range >= FLT_MIN)
5422	QuadAttenuation = 1.4f / (pData->range * pData->range);
5423	else
5424	QuadAttenuation = 0.0f;
5425
5426	switch (pData->type)
5427	{
5428	case SVGA3D_LIGHTTYPE_POINT:
5429	{
5430	GLfloat position[4];
5431
5432	position[0] = pData->position[0];
5433	position[1] = pData->position[1];
5434	position[2] = pData->position[2];
5435	position[3] = 1.0f;
5436
5437	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5438	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5439
5440	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5441	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5442
5443	/* Attenuation - Are these right? guessing... */
5444	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5445	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5446
5447	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5448	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5449
5450	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5451	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5452
5453	/** @todo range */
5454	break;
5455	}
5456
5457	case SVGA3D_LIGHTTYPE_SPOT1:
5458	{
5459	GLfloat exponent;
5460	GLfloat position[4];
5461	const GLfloat pi = 4.0f * atanf(1.0f);
5462
5463	position[0] = pData->position[0];
5464	position[1] = pData->position[1];
5465	position[2] = pData->position[2];
5466	position[3] = 1.0f;
5467
5468	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5469	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5470
5471	position[0] = pData->direction[0];
5472	position[1] = pData->direction[1];
5473	position[2] = pData->direction[2];
5474	position[3] = 1.0f;
5475
5476	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5477	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5478
5479	/*
5480	* opengl-ish and d3d-ish spot lights use too different models for the
5481	* light "intensity" as a function of the angle towards the main light direction,
5482	* so we only can approximate very roughly.
5483	* however spot lights are rather rarely used in games (if ever used at all).
5484	* furthermore if still used, probably nobody pays attention to such details.
5485	*/
5486	if (pData->falloff == 0)
5487	{
5488	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5489	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5490	* will always be 1.0 for both of them, and we don't have to care for the
5491	* rest of the rather complex calculation
5492	*/
5493	exponent = 0.0f;
5494	}
5495	else
5496	{
5497	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5498	if (rho < 0.0001f)
5499	rho = 0.0001f;
5500	exponent = -0.3f/log(cos(rho/2));
5501	}
5502	if (exponent > 128.0f)
5503	exponent = 128.0f;
5504
5505	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5506	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5507
5508	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5509	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5510
5511	/* Attenuation - Are these right? guessing... */
5512	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5513	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5514
5515	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5516	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5517
5518	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5519	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5520
5521	/** @todo range */
5522	break;
5523	}
5524
5525	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5526	{
5527	GLfloat position[4];
5528
5529	position[0] = -pData->direction[0];
5530	position[1] = -pData->direction[1];
5531	position[2] = -pData->direction[2];
5532	position[3] = 0.0f;
5533
5534	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5535	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5536
5537	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5538	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5539
5540	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5541	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5542	break;
5543	}
5544
5545	case SVGA3D_LIGHTTYPE_SPOT2:
5546	default:
5547	Log(("Unsupported light type!!\n"));
5548	return VERR_INVALID_PARAMETER;
5549	}
5550
5551	/* Restore the modelview matrix */
5552	glPopMatrix();
5553
5554	return VINF_SUCCESS;
5555	}
5556
5557	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5558	{
5559	PVMSVGA3DCONTEXT pContext;
5560	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5561	AssertReturn(pState, VERR_NO_MEMORY);
5562
5563	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5564
5565	if ( cid >= pState->cContexts
5566	\|\| pState->papContexts[cid]->id != cid)
5567	{
5568	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5569	return VERR_INVALID_PARAMETER;
5570	}
5571	pContext = pState->papContexts[cid];
5572	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5573
5574	/* Store for vm state save/restore */
5575	if (index < SVGA3D_MAX_LIGHTS)
5576	pContext->state.aLightData[index].fEnabled = !!enabled;
5577	else
5578	AssertFailed();
5579
5580	if (enabled)
5581	{
5582	/* Load the default settings if none have been set yet. */
5583	if (!pContext->state.aLightData[index].fValidData)
5584	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5585	glEnable(GL_LIGHT0 + index);
5586	}
5587	else
5588	glDisable(GL_LIGHT0 + index);
5589
5590	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5591	return VINF_SUCCESS;
5592	}
5593
5594	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5595	{
5596	PVMSVGA3DCONTEXT pContext;
5597	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5598	AssertReturn(pState, VERR_NO_MEMORY);
5599
5600	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5601
5602	if ( cid >= pState->cContexts
5603	\|\| pState->papContexts[cid]->id != cid)
5604	{
5605	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5606	return VERR_INVALID_PARAMETER;
5607	}
5608	pContext = pState->papContexts[cid];
5609	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5610
5611	/* Save for vm state save/restore. */
5612	pContext->state.RectViewPort = *pRect;
5613	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5614
5615	/** @todo y-inversion for partial viewport coordinates? */
5616	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5617	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5618
5619	/* Reset the projection matrix as that relies on the viewport setting. */
5620	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5621	{
5622	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5623	}
5624	else
5625	{
5626	float matrix[16];
5627
5628	/* identity matrix if no matrix set. */
5629	memset(matrix, 0, sizeof(matrix));
5630	matrix[0] = 1.0;
5631	matrix[5] = 1.0;
5632	matrix[10] = 1.0;
5633	matrix[15] = 1.0;
5634	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5635	}
5636
5637	return VINF_SUCCESS;
5638	}
5639
5640	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5641	{
5642	PVMSVGA3DCONTEXT pContext;
5643	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5644	AssertReturn(pState, VERR_NO_MEMORY);
5645	double oglPlane[4];
5646
5647	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)));
5648	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5649
5650	if ( cid >= pState->cContexts
5651	\|\| pState->papContexts[cid]->id != cid)
5652	{
5653	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5654	return VERR_INVALID_PARAMETER;
5655	}
5656	pContext = pState->papContexts[cid];
5657	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5658
5659	/* Store for vm state save/restore. */
5660	pContext->state.aClipPlane[index].fValid = true;
5661	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5662
5663	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5664	oglPlane[0] = (double)plane[0];
5665	oglPlane[1] = (double)plane[1];
5666	oglPlane[2] = (double)plane[2];
5667	oglPlane[3] = (double)plane[3];
5668
5669	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5670	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5671
5672	return VINF_SUCCESS;
5673	}
5674
5675	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5676	{
5677	PVMSVGA3DCONTEXT pContext;
5678	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5679	AssertReturn(pState, VERR_NO_MEMORY);
5680
5681	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5682
5683	if ( cid >= pState->cContexts
5684	\|\| pState->papContexts[cid]->id != cid)
5685	{
5686	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5687	return VERR_INVALID_PARAMETER;
5688	}
5689	pContext = pState->papContexts[cid];
5690	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5691
5692	/* Store for vm state save/restore. */
5693	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5694	pContext->state.RectScissor = *pRect;
5695
5696	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5697	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5698
5699	return VINF_SUCCESS;
5700	}
5701
5702	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5703	{
5704	/* Convert byte color components to float (0-1.0) */
5705	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5706	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5707	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5708	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5709	}
5710
5711	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5712	uint32_t cRects, SVGA3dRect *pRect)
5713	{
5714	GLbitfield mask = 0;
5715	PVMSVGA3DCONTEXT pContext;
5716	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5717	AssertReturn(pState, VERR_NO_MEMORY);
5718	GLboolean fDepthWriteEnabled = GL_FALSE;
5719
5720	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));
5721
5722	if ( cid >= pState->cContexts
5723	\|\| pState->papContexts[cid]->id != cid)
5724	{
5725	Log(("vmsvga3dCommandClear invalid context id!\n"));
5726	return VERR_INVALID_PARAMETER;
5727	}
5728	pContext = pState->papContexts[cid];
5729	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5730
5731	if (clearFlag & SVGA3D_CLEAR_COLOR)
5732	{
5733	GLfloat red, green, blue, alpha;
5734
5735	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5736
5737	/* Set the color clear value. */
5738	glClearColor(red, green, blue, alpha);
5739
5740	mask \|= GL_COLOR_BUFFER_BIT;
5741	}
5742	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5743	{
5744	/** @todo possibly the same problem as with glDepthMask */
5745	glClearStencil(stencil);
5746	mask \|= GL_STENCIL_BUFFER_BIT;
5747	}
5748	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5749	{
5750	glClearDepth((GLdouble)depth);
5751	mask \|= GL_DEPTH_BUFFER_BIT;
5752
5753	/* glClear will not clear the depth buffer if writing is disabled. */
5754	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5755	if (fDepthWriteEnabled == GL_FALSE)
5756	glDepthMask(GL_TRUE);
5757	}
5758
5759	if (cRects)
5760	{
5761	/* Save the current scissor test bit and scissor box. */
5762	glPushAttrib(GL_SCISSOR_BIT);
5763	glEnable(GL_SCISSOR_TEST);
5764	for (unsigned i=0; i < cRects; i++)
5765	{
5766	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));
5767	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5768	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5769	glClear(mask);
5770	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5771	}
5772	/* Restore the old scissor test bit and box */
5773	glPopAttrib();
5774	}
5775	else
5776	{
5777	glClear(mask);
5778	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5779	}
5780
5781	/* Restore depth write state. */
5782	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5783	&& fDepthWriteEnabled == GL_FALSE)
5784	glDepthMask(GL_FALSE);
5785
5786	return VINF_SUCCESS;
5787	}
5788
5789	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5790	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5791	{
5792	normalized = GL_FALSE;
5793	switch (identity.type)
5794	{
5795	case SVGA3D_DECLTYPE_FLOAT1:
5796	size = 1;
5797	type = GL_FLOAT;
5798	break;
5799	case SVGA3D_DECLTYPE_FLOAT2:
5800	size = 2;
5801	type = GL_FLOAT;
5802	break;
5803	case SVGA3D_DECLTYPE_FLOAT3:
5804	size = 3;
5805	type = GL_FLOAT;
5806	break;
5807	case SVGA3D_DECLTYPE_FLOAT4:
5808	size = 4;
5809	type = GL_FLOAT;
5810	break;
5811
5812	case SVGA3D_DECLTYPE_D3DCOLOR:
5813	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5814	type = GL_UNSIGNED_BYTE;
5815	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5816	break;
5817
5818	case SVGA3D_DECLTYPE_UBYTE4N:
5819	normalized = GL_TRUE;
5820	RT_FALL_THRU();
5821	case SVGA3D_DECLTYPE_UBYTE4:
5822	size = 4;
5823	type = GL_UNSIGNED_BYTE;
5824	break;
5825
5826	case SVGA3D_DECLTYPE_SHORT2N:
5827	normalized = GL_TRUE;
5828	RT_FALL_THRU();
5829	case SVGA3D_DECLTYPE_SHORT2:
5830	size = 2;
5831	type = GL_SHORT;
5832	break;
5833
5834	case SVGA3D_DECLTYPE_SHORT4N:
5835	normalized = GL_TRUE;
5836	RT_FALL_THRU();
5837	case SVGA3D_DECLTYPE_SHORT4:
5838	size = 4;
5839	type = GL_SHORT;
5840	break;
5841
5842	case SVGA3D_DECLTYPE_USHORT4N:
5843	normalized = GL_TRUE;
5844	size = 4;
5845	type = GL_UNSIGNED_SHORT;
5846	break;
5847
5848	case SVGA3D_DECLTYPE_USHORT2N:
5849	normalized = GL_TRUE;
5850	size = 2;
5851	type = GL_UNSIGNED_SHORT;
5852	break;
5853
5854	case SVGA3D_DECLTYPE_UDEC3:
5855	size = 3;
5856	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5857	break;
5858
5859	case SVGA3D_DECLTYPE_DEC3N:
5860	normalized = true;
5861	size = 3;
5862	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5863	break;
5864
5865	case SVGA3D_DECLTYPE_FLOAT16_2:
5866	size = 2;
5867	type = GL_HALF_FLOAT;
5868	break;
5869	case SVGA3D_DECLTYPE_FLOAT16_4:
5870	size = 4;
5871	type = GL_HALF_FLOAT;
5872	break;
5873	default:
5874	AssertFailedReturn(VERR_INVALID_PARAMETER);
5875	}
5876
5877	//pVertexElement->Method = identity.method;
5878	//pVertexElement->Usage = identity.usage;
5879
5880	return VINF_SUCCESS;
5881	}
5882
5883	/* Convert VMWare primitive type to its OpenGL equivalent. */
5884	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5885	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5886	{
5887	switch (PrimitiveType)
5888	{
5889	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5890	*pMode = GL_TRIANGLES;
5891	pcVertices = cPrimitiveCount 3;
5892	break;
5893	case SVGA3D_PRIMITIVE_POINTLIST:
5894	*pMode = GL_POINTS;
5895	*pcVertices = cPrimitiveCount;
5896	break;
5897	case SVGA3D_PRIMITIVE_LINELIST:
5898	*pMode = GL_LINES;
5899	pcVertices = cPrimitiveCount 2;
5900	break;
5901	case SVGA3D_PRIMITIVE_LINESTRIP:
5902	*pMode = GL_LINE_STRIP;
5903	*pcVertices = cPrimitiveCount + 1;
5904	break;
5905	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5906	*pMode = GL_TRIANGLE_STRIP;
5907	*pcVertices = cPrimitiveCount + 2;
5908	break;
5909	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5910	*pMode = GL_TRIANGLE_FAN;
5911	*pcVertices = cPrimitiveCount + 2;
5912	break;
5913	default:
5914	return VERR_INVALID_PARAMETER;
5915	}
5916	return VINF_SUCCESS;
5917	}
5918
5919	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5920	{
5921	int rc;
5922
5923	/* Reset the view matrix (also takes the world matrix into account). */
5924	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5925	{
5926	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5927	}
5928	else
5929	{
5930	float matrix[16];
5931
5932	/* identity matrix if no matrix set. */
5933	memset(matrix, 0, sizeof(matrix));
5934	matrix[0] = 1.0;
5935	matrix[5] = 1.0;
5936	matrix[10] = 1.0;
5937	matrix[15] = 1.0;
5938	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5939	}
5940
5941	/* Reset the projection matrix. */
5942	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5943	{
5944	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5945	}
5946	else
5947	{
5948	float matrix[16];
5949
5950	/* identity matrix if no matrix set. */
5951	memset(matrix, 0, sizeof(matrix));
5952	matrix[0] = 1.0;
5953	matrix[5] = 1.0;
5954	matrix[10] = 1.0;
5955	matrix[15] = 1.0;
5956	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5957	}
5958	AssertRC(rc);
5959	return rc;
5960	}
5961
5962	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5963	{
5964	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5965	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5966	PVMSVGA3DSURFACE pVertexSurface;
5967
5968	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5969	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5970
5971	pVertexSurface = pState->papSurfaces[sidVertex];
5972	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5973
5974	/* Create and/or bind the vertex buffer. */
5975	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5976	{
5977	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5978	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5979	pContext = &pState->SharedCtx;
5980	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5981
5982	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5983	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5984
5985	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5986	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5987
5988	Assert(pVertexSurface->fDirty);
5989	/** @todo rethink usage dynamic/static */
5990	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5991	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5992
5993	pVertexSurface->pMipmapLevels[0].fDirty = false;
5994	pVertexSurface->fDirty = false;
5995
5996	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5997
5998	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5999	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6000
6001	pContext = pSavedCtx;
6002	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6003	}
6004
6005	Assert(pVertexSurface->fDirty == false);
6006	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6007	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6008
6009	/* Setup the vertex declarations. */
6010	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6011	{
6012	GLint size;
6013	GLenum type;
6014	GLboolean normalized;
6015	GLuint index = iVertexDeclBase + iVertex;
6016
6017	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));
6018
6019	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6020	AssertRCReturn(rc, rc);
6021
6022	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6023	{
6024	/* Use numbered vertex arrays when shaders are active. */
6025	pState->ext.glEnableVertexAttribArray(index);
6026	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6027	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6028	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6029	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6030	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6031	}
6032	else
6033	{
6034	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6035	switch (pVertexDecl[iVertex].identity.usage)
6036	{
6037	case SVGA3D_DECLUSAGE_POSITIONT:
6038	case SVGA3D_DECLUSAGE_POSITION:
6039	{
6040	glEnableClientState(GL_VERTEX_ARRAY);
6041	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6042	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6043	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6044	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6045	break;
6046	}
6047	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6048	AssertFailed();
6049	break;
6050	case SVGA3D_DECLUSAGE_BLENDINDICES:
6051	AssertFailed();
6052	break;
6053	case SVGA3D_DECLUSAGE_NORMAL:
6054	glEnableClientState(GL_NORMAL_ARRAY);
6055	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6056	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6057	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6058	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6059	break;
6060	case SVGA3D_DECLUSAGE_PSIZE:
6061	AssertFailed();
6062	break;
6063	case SVGA3D_DECLUSAGE_TEXCOORD:
6064	/* Specify the affected texture unit. */
6065	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6066	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6067	#else
6068	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6069	#endif
6070	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6071	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6072	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6073	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6074	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6075	break;
6076	case SVGA3D_DECLUSAGE_TANGENT:
6077	AssertFailed();
6078	break;
6079	case SVGA3D_DECLUSAGE_BINORMAL:
6080	AssertFailed();
6081	break;
6082	case SVGA3D_DECLUSAGE_TESSFACTOR:
6083	AssertFailed();
6084	break;
6085	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6086	glEnableClientState(GL_COLOR_ARRAY);
6087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6088	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6089	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6091	break;
6092	case SVGA3D_DECLUSAGE_FOG:
6093	glEnableClientState(GL_FOG_COORD_ARRAY);
6094	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6095	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6096	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6097	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6098	break;
6099	case SVGA3D_DECLUSAGE_DEPTH:
6100	AssertFailed();
6101	break;
6102	case SVGA3D_DECLUSAGE_SAMPLE:
6103	AssertFailed();
6104	break;
6105	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6106	}
6107	}
6108
6109	#ifdef LOG_ENABLED
6110	if (pVertexDecl[iVertex].array.stride == 0)
6111	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6112	#endif
6113	}
6114
6115	return VINF_SUCCESS;
6116	}
6117
6118	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6119	{
6120	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6121
6122	/* Clean up the vertex declarations. */
6123	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6124	{
6125	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6126	{
6127	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6128	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6129	vmsvga3dResetTransformMatrices(pThis, pContext);
6130	}
6131
6132	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6133	{
6134	/* Use numbered vertex arrays when shaders are active. */
6135	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6137	}
6138	else
6139	{
6140	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6141	switch (pVertexDecl[iVertex].identity.usage)
6142	{
6143	case SVGA3D_DECLUSAGE_POSITION:
6144	case SVGA3D_DECLUSAGE_POSITIONT:
6145	glDisableClientState(GL_VERTEX_ARRAY);
6146	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6147	break;
6148	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6149	break;
6150	case SVGA3D_DECLUSAGE_BLENDINDICES:
6151	break;
6152	case SVGA3D_DECLUSAGE_NORMAL:
6153	glDisableClientState(GL_NORMAL_ARRAY);
6154	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6155	break;
6156	case SVGA3D_DECLUSAGE_PSIZE:
6157	break;
6158	case SVGA3D_DECLUSAGE_TEXCOORD:
6159	/* Specify the affected texture unit. */
6160	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6161	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6162	#else
6163	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6164	#endif
6165	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6167	break;
6168	case SVGA3D_DECLUSAGE_TANGENT:
6169	break;
6170	case SVGA3D_DECLUSAGE_BINORMAL:
6171	break;
6172	case SVGA3D_DECLUSAGE_TESSFACTOR:
6173	break;
6174	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6175	glDisableClientState(GL_COLOR_ARRAY);
6176	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6177	break;
6178	case SVGA3D_DECLUSAGE_FOG:
6179	glDisableClientState(GL_FOG_COORD_ARRAY);
6180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6181	break;
6182	case SVGA3D_DECLUSAGE_DEPTH:
6183	break;
6184	case SVGA3D_DECLUSAGE_SAMPLE:
6185	break;
6186	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6187	}
6188	}
6189	}
6190	/* Unbind the vertex buffer after usage. */
6191	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6193	return VINF_SUCCESS;
6194	}
6195
6196	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6197	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6198	SVGA3dVertexDivisor *pVertexDivisor)
6199	{
6200	RT_NOREF(pVertexDivisor);
6201	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6202	AssertReturn(pState, VERR_INTERNAL_ERROR);
6203	PVMSVGA3DCONTEXT pContext;
6204	int rc = VERR_NOT_IMPLEMENTED;
6205	uint32_t iCurrentVertex;
6206
6207	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6208
6209	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6210	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6211	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6212	/** @todo Non-zero cVertexDivisor */
6213	Assert(!cVertexDivisor);
6214
6215	if ( cid >= pState->cContexts
6216	\|\| pState->papContexts[cid]->id != cid)
6217	{
6218	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6219	return VERR_INVALID_PARAMETER;
6220	}
6221	pContext = pState->papContexts[cid];
6222	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6223
6224	/* Check for pretransformed vertex declarations. */
6225	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6226	{
6227	switch (pVertexDecl[iVertex].identity.usage)
6228	{
6229	case SVGA3D_DECLUSAGE_POSITIONT:
6230	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6231	RT_FALL_THRU();
6232	case SVGA3D_DECLUSAGE_POSITION:
6233	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6234	pContext->state.RectViewPort.h,
6235	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6236	break;
6237	default: /* Shut up MSC. */ break;
6238	}
6239	}
6240
6241	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6242	if (pContext->pShaderContext)
6243	{
6244	uint32_t rtHeight = 0;
6245
6246	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6247	{
6248	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6249	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6250	}
6251
6252	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6253	}
6254
6255	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6256	iCurrentVertex = 0;
6257	while (iCurrentVertex < numVertexDecls)
6258	{
6259	uint32_t sidVertex = SVGA_ID_INVALID;
6260	uint32_t iVertex;
6261
6262	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6263	{
6264	if ( sidVertex != SVGA_ID_INVALID
6265	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6266	)
6267	break;
6268	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6269	}
6270
6271	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6272	AssertRCReturn(rc, rc);
6273
6274	iCurrentVertex = iVertex;
6275	}
6276
6277	/* Now draw the primitives. */
6278	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6279	{
6280	GLenum modeDraw;
6281	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6282	PVMSVGA3DSURFACE pIndexSurface = NULL;
6283	unsigned cVertices;
6284
6285	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6286	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6287	if (RT_FAILURE(rc))
6288	{
6289	AssertRC(rc);
6290	goto internal_error;
6291	}
6292
6293	if (sidIndex != SVGA3D_INVALID_ID)
6294	{
6295	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6296
6297	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6298	\|\| sidIndex >= pState->cSurfaces
6299	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6300	{
6301	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6302	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6303	rc = VERR_INVALID_PARAMETER;
6304	goto internal_error;
6305	}
6306	pIndexSurface = pState->papSurfaces[sidIndex];
6307	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6308
6309	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6310	{
6311	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6312	pContext = &pState->SharedCtx;
6313	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6314
6315	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6316	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6317
6318	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6319	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6320
6321	Assert(pIndexSurface->fDirty);
6322
6323	/** @todo rethink usage dynamic/static */
6324	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6325	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6326
6327	pIndexSurface->pMipmapLevels[0].fDirty = false;
6328	pIndexSurface->fDirty = false;
6329
6330	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6331
6332	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6333	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6334
6335	pContext = pState->papContexts[cid];
6336	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6337	}
6338	Assert(pIndexSurface->fDirty == false);
6339
6340	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6341	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6342	}
6343
6344	if (!pIndexSurface)
6345	{
6346	/* Render without an index buffer */
6347	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6348	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6349	}
6350	else
6351	{
6352	GLenum indexType;
6353
6354	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6355	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6356
6357	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6358	{
6359	indexType = GL_UNSIGNED_BYTE;
6360	}
6361	else
6362	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6363	{
6364	indexType = GL_UNSIGNED_SHORT;
6365	}
6366	else
6367	{
6368	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6369	indexType = GL_UNSIGNED_INT;
6370	}
6371
6372	/* Render with an index buffer */
6373	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));
6374	if (pRange[iPrimitive].indexBias == 0)
6375	glDrawElements(modeDraw,
6376	cVertices,
6377	indexType,
6378	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6379	else
6380	pState->ext.glDrawElementsBaseVertex(modeDraw,
6381	cVertices,
6382	indexType,
6383	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6384	pRange[iPrimitive].indexBias); /* basevertex */
6385
6386	/* Unbind the index buffer after usage. */
6387	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6388	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6389	}
6390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6391	}
6392
6393	internal_error:
6394
6395	/* Deactivate the vertex declarations. */
6396	iCurrentVertex = 0;
6397	while (iCurrentVertex < numVertexDecls)
6398	{
6399	uint32_t sidVertex = SVGA_ID_INVALID;
6400	uint32_t iVertex;
6401
6402	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6403	{
6404	if ( sidVertex != SVGA_ID_INVALID
6405	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6406	)
6407	break;
6408	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6409	}
6410
6411	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6412	AssertRCReturn(rc, rc);
6413
6414	iCurrentVertex = iVertex;
6415	}
6416	#ifdef DEBUG
6417	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
6418	{
6419	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6420	{
6421	GLint activeTexture = 0;
6422	GLint activeTextureUnit = 0;
6423
6424	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6425	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6426	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6427	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6428
6429	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6430	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6431	pState->ext.glActiveTexture(activeTextureUnit);
6432	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6433
6434	# 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. */
6435	if (pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6436	{
6437	PVMSVGA3DSURFACE pTexture;
6438	pTexture = pState->papSurfaces[pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0]];
6439
6440	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6441	}
6442	# else
6443	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTextures[i]];
6444	AssertMsg(pTexture->id == pContext->aSidActiveTextures[i], ("%x vs %x\n", pTexture->id, pContext->aSidActiveTextures[i]));
6445	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6446	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6447	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6448	# endif
6449	}
6450	}
6451	#endif
6452
6453	#ifdef DEBUG_GFX_WINDOW
6454	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0])
6455	{
6456	SVGA3dCopyRect rect;
6457
6458	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6459	rect.w = pContext->state.RectViewPort.w;
6460	rect.h = pContext->state.RectViewPort.h;
6461	vmsvga3dCommandPresent(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], 0, NULL);
6462	}
6463	#endif
6464
6465	return rc;
6466	}
6467
6468
6469	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6470	{
6471	PVMSVGA3DCONTEXT pContext;
6472	PVMSVGA3DSHADER pShader;
6473	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6474	AssertReturn(pState, VERR_NO_MEMORY);
6475	int rc;
6476
6477	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6478	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6479
6480	if ( cid >= pState->cContexts
6481	\|\| pState->papContexts[cid]->id != cid)
6482	{
6483	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6484	return VERR_INVALID_PARAMETER;
6485	}
6486	pContext = pState->papContexts[cid];
6487	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6488
6489	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6490	if (type == SVGA3D_SHADERTYPE_VS)
6491	{
6492	if (shid >= pContext->cVertexShaders)
6493	{
6494	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6495	AssertReturn(pvNew, VERR_NO_MEMORY);
6496	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6497	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6498	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6499	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6500	pContext->cVertexShaders = shid + 1;
6501	}
6502	/* If one already exists with this id, then destroy it now. */
6503	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6504	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6505
6506	pShader = &pContext->paVertexShader[shid];
6507	}
6508	else
6509	{
6510	Assert(type == SVGA3D_SHADERTYPE_PS);
6511	if (shid >= pContext->cPixelShaders)
6512	{
6513	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6514	AssertReturn(pvNew, VERR_NO_MEMORY);
6515	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6516	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6517	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6518	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6519	pContext->cPixelShaders = shid + 1;
6520	}
6521	/* If one already exists with this id, then destroy it now. */
6522	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6523	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6524
6525	pShader = &pContext->paPixelShader[shid];
6526	}
6527
6528	memset(pShader, 0, sizeof(*pShader));
6529	pShader->id = shid;
6530	pShader->cid = cid;
6531	pShader->type = type;
6532	pShader->cbData = cbData;
6533	pShader->pShaderProgram = RTMemAllocZ(cbData);
6534	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6535	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6536
6537	#ifdef DUMP_SHADER_DISASSEMBLY
6538	LPD3DXBUFFER pDisassembly;
6539	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6540	if (hr == D3D_OK)
6541	{
6542	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6543	pDisassembly->Release();
6544	}
6545	#endif
6546
6547	switch (type)
6548	{
6549	case SVGA3D_SHADERTYPE_VS:
6550	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6551	break;
6552
6553	case SVGA3D_SHADERTYPE_PS:
6554	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6555	break;
6556
6557	default:
6558	AssertFailedReturn(VERR_INVALID_PARAMETER);
6559	}
6560	if (rc != VINF_SUCCESS)
6561	{
6562	RTMemFree(pShader->pShaderProgram);
6563	memset(pShader, 0, sizeof(*pShader));
6564	pShader->id = SVGA3D_INVALID_ID;
6565	}
6566
6567	return rc;
6568	}
6569
6570	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6571	{
6572	PVMSVGA3DCONTEXT pContext;
6573	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6574	AssertReturn(pState, VERR_NO_MEMORY);
6575	PVMSVGA3DSHADER pShader = NULL;
6576	int rc;
6577
6578	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6579
6580	if ( cid >= pState->cContexts
6581	\|\| pState->papContexts[cid]->id != cid)
6582	{
6583	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6584	return VERR_INVALID_PARAMETER;
6585	}
6586	pContext = pState->papContexts[cid];
6587	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6588
6589	if (type == SVGA3D_SHADERTYPE_VS)
6590	{
6591	if ( shid < pContext->cVertexShaders
6592	&& pContext->paVertexShader[shid].id == shid)
6593	{
6594	pShader = &pContext->paVertexShader[shid];
6595	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6596	AssertRC(rc);
6597	}
6598	}
6599	else
6600	{
6601	Assert(type == SVGA3D_SHADERTYPE_PS);
6602	if ( shid < pContext->cPixelShaders
6603	&& pContext->paPixelShader[shid].id == shid)
6604	{
6605	pShader = &pContext->paPixelShader[shid];
6606	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6607	AssertRC(rc);
6608	}
6609	}
6610
6611	if (pShader)
6612	{
6613	if (pShader->pShaderProgram)
6614	RTMemFree(pShader->pShaderProgram);
6615	memset(pShader, 0, sizeof(*pShader));
6616	pShader->id = SVGA3D_INVALID_ID;
6617	}
6618	else
6619	AssertFailedReturn(VERR_INVALID_PARAMETER);
6620
6621	return VINF_SUCCESS;
6622	}
6623
6624	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6625	{
6626	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6627	AssertReturn(pState, VERR_NO_MEMORY);
6628	int rc;
6629
6630	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6631
6632	if ( !pContext
6633	&& cid < pState->cContexts
6634	&& pState->papContexts[cid]->id == cid)
6635	pContext = pState->papContexts[cid];
6636	else if (!pContext)
6637	{
6638	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6639	Log(("vmsvga3dShaderSet invalid context id!\n"));
6640	return VERR_INVALID_PARAMETER;
6641	}
6642	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6643
6644	if (type == SVGA3D_SHADERTYPE_VS)
6645	{
6646	/* Save for vm state save/restore. */
6647	pContext->state.shidVertex = shid;
6648	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6649
6650	if ( shid < pContext->cVertexShaders
6651	&& pContext->paVertexShader[shid].id == shid)
6652	{
6653	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6654	Assert(type == pShader->type);
6655
6656	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6657	AssertRCReturn(rc, rc);
6658	}
6659	else
6660	if (shid == SVGA_ID_INVALID)
6661	{
6662	/* Unselect shader. */
6663	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6664	AssertRCReturn(rc, rc);
6665	}
6666	else
6667	AssertFailedReturn(VERR_INVALID_PARAMETER);
6668	}
6669	else
6670	{
6671	/* Save for vm state save/restore. */
6672	pContext->state.shidPixel = shid;
6673	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6674
6675	Assert(type == SVGA3D_SHADERTYPE_PS);
6676	if ( shid < pContext->cPixelShaders
6677	&& pContext->paPixelShader[shid].id == shid)
6678	{
6679	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6680	Assert(type == pShader->type);
6681
6682	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6683	AssertRCReturn(rc, rc);
6684	}
6685	else
6686	if (shid == SVGA_ID_INVALID)
6687	{
6688	/* Unselect shader. */
6689	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6690	AssertRCReturn(rc, rc);
6691	}
6692	else
6693	AssertFailedReturn(VERR_INVALID_PARAMETER);
6694	}
6695
6696	return VINF_SUCCESS;
6697	}
6698
6699	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6700	{
6701	PVMSVGA3DCONTEXT pContext;
6702	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6703	AssertReturn(pState, VERR_NO_MEMORY);
6704	int rc;
6705
6706	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6707
6708	if ( cid >= pState->cContexts
6709	\|\| pState->papContexts[cid]->id != cid)
6710	{
6711	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6712	return VERR_INVALID_PARAMETER;
6713	}
6714	pContext = pState->papContexts[cid];
6715	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6716
6717	for (uint32_t i = 0; i < cRegisters; i++)
6718	{
6719	#ifdef LOG_ENABLED
6720	switch (ctype)
6721	{
6722	case SVGA3D_CONST_TYPE_FLOAT:
6723	{
6724	float pValuesF = (float )pValues;
6725	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)));
6726	break;
6727	}
6728
6729	case SVGA3D_CONST_TYPE_INT:
6730	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6731	break;
6732
6733	case SVGA3D_CONST_TYPE_BOOL:
6734	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6735	break;
6736	}
6737	#endif
6738	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6739	}
6740
6741	switch (type)
6742	{
6743	case SVGA3D_SHADERTYPE_VS:
6744	switch (ctype)
6745	{
6746	case SVGA3D_CONST_TYPE_FLOAT:
6747	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6748	break;
6749
6750	case SVGA3D_CONST_TYPE_INT:
6751	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6752	break;
6753
6754	case SVGA3D_CONST_TYPE_BOOL:
6755	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6756	break;
6757
6758	default:
6759	AssertFailedReturn(VERR_INVALID_PARAMETER);
6760	}
6761	AssertRCReturn(rc, rc);
6762	break;
6763
6764	case SVGA3D_SHADERTYPE_PS:
6765	switch (ctype)
6766	{
6767	case SVGA3D_CONST_TYPE_FLOAT:
6768	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6769	break;
6770
6771	case SVGA3D_CONST_TYPE_INT:
6772	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6773	break;
6774
6775	case SVGA3D_CONST_TYPE_BOOL:
6776	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6777	break;
6778
6779	default:
6780	AssertFailedReturn(VERR_INVALID_PARAMETER);
6781	}
6782	AssertRCReturn(rc, rc);
6783	break;
6784
6785	default:
6786	AssertFailedReturn(VERR_INVALID_PARAMETER);
6787	}
6788
6789	return VINF_SUCCESS;
6790	}
6791
6792	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6793	{
6794	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6795	GLuint idQuery = 0;
6796	pState->ext.glGenQueries(1, &idQuery);
6797	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6798	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6799	pContext->occlusion.idQuery = idQuery;
6800	return VINF_SUCCESS;
6801	}
6802
6803	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6804	{
6805	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6806	if (pContext->occlusion.idQuery)
6807	{
6808	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6809	}
6810	return VINF_SUCCESS;
6811	}
6812
6813	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6814	{
6815	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6816	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6817	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6818	return VINF_SUCCESS;
6819	}
6820
6821	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6822	{
6823	RT_NOREF(pContext);
6824	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6825	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6827	return VINF_SUCCESS;
6828	}
6829
6830	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6831	{
6832	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6833	GLuint pixels = 0;
6834	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6835	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6836
6837	*pu32Pixels = (uint32_t)pixels;
6838	return VINF_SUCCESS;
6839	}

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 69859

Download in other formats: