DevVGA-SVGA3d-ogl.cpp@ 61006

Last change on this file since 61006 was 59741, checked in by vboxsync, 9 years ago
SVGA3d: Applied patch for supporting pretransformed vertices (SVGA3D_DECLUSAGE_POSITIONT) from trivirt.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 258.9 KB

Line
1	/* $Id: DevVGA-SVGA3d-ogl.cpp 59741 2016-02-19 15:11:35Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2015 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 <VBox/VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].size.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#define MANUAL_FLIP_SURFACE_DATA
91	/* Enable to render the result of DrawPrimitive in a seperate window. */
92	//#define DEBUG_GFX_WINDOW
93
94
95	/**
96	* Macro for doing something and then checking for errors during initialization.
97	* Uses AssertLogRelMsg.
98	*/
99	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
100	do \
101	{ \
102	a_Expr; \
103	GLenum iGlError = glGetError(); \
104	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
105	} while (0)
106
107	/**
108	* Macro for doing something and then checking for errors during initialization,
109	* doing the same in the other context when enabled.
110	*
111	* This will try both profiles in dual profile builds. Caller must be in the
112	* default context.
113	*
114	* Uses AssertLogRelMsg to indicate trouble.
115	*/
116	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
117	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
118	do \
119	{ \
120	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
121	a_Expr; \
122	GLenum iGlError = glGetError(); \
123	if (iGlError != GL_NO_ERROR) \
124	{ \
125	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError2 = glGetError(); \
129	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
130	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
131	} \
132	} while (0)
133	#else
134	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
135	#endif
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	/* Define the default light parameters as specified by MSDN. */
142	/** @todo move out; fetched from Wine */
143	const SVGA3dLightData vmsvga3d_default_light =
144	{
145	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
146	false, /* inWorldSpace */
147	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
149	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
150	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
151	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
152	0.0f, /* range */
153	0.0f, /* falloff */
154	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
155	0.0f, /* theta */
156	0.0f /* phi */
157	};
158
159
160	/*********************************************************************************************************************************
161	* Internal Functions *
162	*********************************************************************************************************************************/
163	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
164	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
165
166	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
167	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
168
169
170	/**
171	* Checks if the given OpenGL extension is supported.
172	*
173	* @returns true if supported, false if not.
174	* @param pState The VMSVGA3d state.
175	* @param fActualGLVersion The actual OpenGL version we're working against.
176	* @param fMinGLVersion The OpenGL version that introduced this feature
177	* into the core.
178	* @param pszWantedExtension The name of the OpenGL extension we want padded
179	* with one space at each end.
180	* @remarks Init time only.
181	*/
182	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float fMinGLVersion, const char *pszWantedExtension)
183	{
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 (fMinGLVersion != 0.0 && fActualGLVersion >= fMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( fMinGLVersion == 0.0
197	\|\| fRet == (pState->fGLVersion >= fMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(fMinGLVersion == 0.0 \|\| fRet == (pState->fGLVersion >= fMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 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	size_t cchExt = strlen(pszExt);
487	Assert(cchExt > 3);
488	Assert(pszExt[0] == ' ');
489	Assert(pszExt[1] != ' ');
490	Assert(pszExt[cchExt - 2] != ' ');
491	Assert(pszExt[cchExt - 1] == ' ');
492
493	if (strstr(*ppszExtensions, pszExt) == NULL)
494	{
495	if (cPromoted++ == 0)
496	{
497	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
498	AssertRCReturn(rc, rc);
499	}
500
501	rc = RTStrAAppend(ppszExtensions, pszExt);
502	AssertRCReturn(rc, rc);
503	}
504
505	pszExt = strchr(pszExt, '\0') + 1;
506	}
507	}
508	#endif
509
510	return VINF_SUCCESS;
511	}
512
513	/**
514	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
515	*/
516	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
517	{
518	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
519	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
520	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
521	#else
522	NOREF(pThis);
523	NOREF(fOtherProfile);
524	#endif
525	}
526
527
528	/**
529	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
530	*/
531	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
532	char *pszBuf, size_t cbBuf, bool fOtherProfile)
533	{
534	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
535	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
536	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
537	while (*pszCur == ' ')
538	pszCur++;
539	if (!*pszCur)
540	return false;
541
542	const char *pszEnd = strchr(pszCur, ' ');
543	AssertReturn(pszEnd, false);
544	size_t cch = pszEnd - pszCur;
545	if (cch < cbBuf)
546	{
547	memcpy(pszBuf, pszCur, cch);
548	pszBuf[cch] = '\0';
549	}
550	else if (cbBuf > 0)
551	{
552	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
553	pszBuf[cbBuf - 1] = '\0';
554	}
555
556	ppvEnumCtx = (void )pszEnd;
557	return true;
558	}
559
560
561	/**
562	* Initializes the VMSVGA3D state during VGA device construction.
563	*
564	* Failure are generally not fatal, 3D support will just be disabled.
565	*
566	* @returns VBox status code.
567	* @param pThis The VGA device state where svga.p3dState will be modified.
568	*/
569	int vmsvga3dInit(PVGASTATE pThis)
570	{
571	AssertCompile(GL_TRUE == 1);
572	AssertCompile(GL_FALSE == 0);
573
574	/*
575	* Load and resolve imports from the external shared libraries.
576	*/
577	RTERRINFOSTATIC ErrInfo;
578	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
579	if (RT_FAILURE(rc))
580	{
581	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
582	return rc;
583	}
584	#ifdef RT_OS_DARWIN
585	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
586	if (RT_FAILURE(rc))
587	{
588	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
589	return rc;
590	}
591	#endif
592
593	/*
594	* Allocate the state.
595	*/
596	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
597	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
598
599	#ifdef RT_OS_WINDOWS
600	/* Create event semaphore and async IO thread. */
601	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
602	rc = RTSemEventCreate(&pState->WndRequestSem);
603	if (RT_SUCCESS(rc))
604	{
605	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
606	"VMSVGA3DWND");
607	if (RT_SUCCESS(rc))
608	return VINF_SUCCESS;
609
610	/* bail out. */
611	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
612	RTSemEventDestroy(pState->WndRequestSem);
613	}
614	else
615	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
616	RTMemFree(pThis->svga.p3dState);
617	pThis->svga.p3dState = NULL;
618	return rc;
619	#else
620	return VINF_SUCCESS;
621	#endif
622	}
623
624	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
625	int vmsvga3dPowerOn(PVGASTATE pThis)
626	{
627	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
628	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
629	PVMSVGA3DCONTEXT pContext;
630	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
631	PVMSVGA3DCONTEXT pOtherCtx;
632	#endif
633	int rc;
634
635	if (pState->fGLVersion != 0.0)
636	return VINF_SUCCESS; /* already initialized (load state) */
637
638	/*
639	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
640	*/
641	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
642	AssertRCReturn(rc, rc);
643
644	pContext = pState->papContexts[1];
645	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
646
647	LogRel(("VMSVGA3d: OpenGL version: %s\n"
648	"VMSVGA3d: OpenGL Vendor: %s\n"
649	"VMSVGA3d: OpenGL Renderer: %s\n"
650	"VMSVGA3d: OpenGL shader language version: %s\n",
651	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
652	glGetString(GL_SHADING_LANGUAGE_VERSION)));
653
654	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
655	AssertRCReturn(rc, rc);
656	vmsvga3dLogRelExtensions("", pState->pszExtensions);
657
658	pState->fGLVersion = atof((const char *)glGetString(GL_VERSION));
659
660
661	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
662	/*
663	* Get the extension list for the alternative profile so we can better
664	* figure out the shader model and stuff.
665	*/
666	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
667	AssertLogRelRCReturn(rc, rc);
668	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
669
670	pOtherCtx = pState->papContexts[2];
671	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
672
673	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
674	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
675	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
676	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
677	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
678	glGetString(GL_SHADING_LANGUAGE_VERSION)));
679
680	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
681	AssertRCReturn(rc, rc);
682	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
683
684	pState->fOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
685
686	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
687	#else
688	pState->pszOtherExtensions = (char *)"";
689	pState->fOtherGLVersion = pState->fGLVersion;
690	#endif
691
692
693	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
694	{
695	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
696	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
697	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
698	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
699	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
700	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
701	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
702	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
703	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
704	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
705	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
706	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
707	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
708	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
709	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
710	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
711	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
712	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
713	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
714	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
715	}
716	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
717	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
718	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
719	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
720	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
721	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
722	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
723	#endif
724	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
725	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
726	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
727	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
729	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
731	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
733	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
735	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
737	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
739	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
741	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
743	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
745	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
749	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
751	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
753	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
754	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
755	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
756	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
757	#endif
758	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
759	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
760
761	/* OpenGL 3.2 core */
762	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
763	{
764	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
765	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
766	}
767	else
768	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
769
770	/* OpenGL 3.2 core */
771	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
772	{
773	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
774	}
775	else
776	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
777
778	/* Extension support */
779	#if defined(RT_OS_DARWIN)
780	/** @todo OpenGL version history suggest this, verify... */
781	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
782	#else
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
784	#endif
785
786	/*
787	* Initialize the capabilities with sensible defaults.
788	*/
789	pState->caps.maxActiveLights = 1;
790	pState->caps.maxTextureBufferSize = 65536;
791	pState->caps.maxTextures = 1;
792	pState->caps.maxClipDistances = 4;
793	pState->caps.maxColorAttachments = 1;
794	pState->caps.maxRectangleTextureSize = 2048;
795	pState->caps.maxTextureAnisotropy = 2;
796	pState->caps.maxVertexShaderInstructions = 1024;
797	pState->caps.maxFragmentShaderInstructions = 1024;
798	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
799	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
800	pState->caps.flPointSize[0] = 1;
801	pState->caps.flPointSize[1] = 1;
802
803	/*
804	* Query capabilities
805	*/
806	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
807	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
808	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
809	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
810	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
811	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
812	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
813	#else
814	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
815	#endif
816	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
817	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
818	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
819	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
820
821	if (pState->ext.glGetProgramivARB)
822	{
823	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
824	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
825	&pState->caps.maxFragmentShaderTemps));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
827	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
828	&pState->caps.maxFragmentShaderInstructions));
829	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
830	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
831	&pState->caps.maxVertexShaderTemps));
832	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
833	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
834	&pState->caps.maxVertexShaderInstructions));
835	}
836	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
837
838	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
839	* ARB Assembly Language
840	* These are done through testing the presence of extensions. You should test them in this order:
841	* GL_NV_gpu_program4: SM 4.0 or better.
842	* GL_NV_vertex_program3: SM 3.0 or better.
843	* GL_ARB_fragment_program: SM 2.0 or better.
844	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
845	*
846	*/
847	/** @todo distinguish between vertex and pixel shaders??? */
848	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
849	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
850	{
851	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
852	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
853	}
854	else
855	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
856	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
857	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
858	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
859	)
860	{
861	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
862	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
863	}
864	else
865	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
866	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
867	{
868	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
869	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
870	}
871	else
872	{
873	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
874	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
875	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
876	}
877
878	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
879	{
880	/** @todo Intel drivers don't support this extension! */
881	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
882	}
883	#if 0
884	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
885	SVGA3D_DEVCAP_QUERY_TYPES = 15,
886	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
887	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
888	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
889	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
890	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
891	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
892	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
893	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
894	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
895	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
896	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
897	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
898	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
899	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
900	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
901	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
902	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
903	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
904	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
905	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
906	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
907	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
908	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
909	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
910	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
911	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
912	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
913	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
914	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
915	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
916	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
917	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
918	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
919	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
920	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
921	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
922	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
923	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
924	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
925	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
926	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
927	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
928	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
929	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
930	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
931	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
932	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
933	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
934	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
935	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
936	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
937	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
938	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
939	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
940	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
941	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
942	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
943	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
944	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
945	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
946	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
947	#endif
948
949	LogRel(("VMSVGA3d: Capabilities:\n"));
950	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
951	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
952	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
953	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
954	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
955	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
956	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
957	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
958	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
959	pState->caps.maxFragmentShaderTemps,
960	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
961	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
962	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
963	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
964
965
966	/* Initialize the shader library. */
967	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
968	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
969	rc = ShaderInitLib(&pState->ShaderIf);
970	AssertRC(rc);
971
972	/* Cleanup */
973	rc = vmsvga3dContextDestroy(pThis, 1);
974	AssertRC(rc);
975	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
976	rc = vmsvga3dContextDestroy(pThis, 2);
977	AssertRC(rc);
978	#endif
979
980	if ( pState->fGLVersion < 3.0
981	&& pState->fOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
982	{
983	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
984	return VERR_NOT_IMPLEMENTED;
985	}
986	if ( !pState->ext.glIsRenderbuffer
987	\|\| !pState->ext.glBindRenderbuffer
988	\|\| !pState->ext.glDeleteRenderbuffers
989	\|\| !pState->ext.glGenRenderbuffers
990	\|\| !pState->ext.glRenderbufferStorage
991	\|\| !pState->ext.glGetRenderbufferParameteriv
992	\|\| !pState->ext.glIsFramebuffer
993	\|\| !pState->ext.glBindFramebuffer
994	\|\| !pState->ext.glDeleteFramebuffers
995	\|\| !pState->ext.glGenFramebuffers
996	\|\| !pState->ext.glCheckFramebufferStatus
997	\|\| !pState->ext.glFramebufferTexture1D
998	\|\| !pState->ext.glFramebufferTexture2D
999	\|\| !pState->ext.glFramebufferTexture3D
1000	\|\| !pState->ext.glFramebufferRenderbuffer
1001	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1002	\|\| !pState->ext.glGenerateMipmap
1003	\|\| !pState->ext.glBlitFramebuffer
1004	\|\| !pState->ext.glRenderbufferStorageMultisample
1005	\|\| !pState->ext.glFramebufferTextureLayer)
1006	{
1007	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1008	return VERR_NOT_IMPLEMENTED;
1009	}
1010
1011	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1012	pState->idTestContext = SVGA_ID_INVALID;
1013	#endif
1014	return VINF_SUCCESS;
1015	}
1016
1017	int vmsvga3dReset(PVGASTATE pThis)
1018	{
1019	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1020	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1021
1022	/* Destroy all leftover surfaces. */
1023	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1024	{
1025	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1026	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1027	}
1028
1029	/* Destroy all leftover contexts. */
1030	for (uint32_t i = 0; i < pState->cContexts; i++)
1031	{
1032	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1033	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1034	}
1035
1036	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1037	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1038
1039	return VINF_SUCCESS;
1040	}
1041
1042	int vmsvga3dTerminate(PVGASTATE pThis)
1043	{
1044	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1045	AssertReturn(pState, VERR_WRONG_ORDER);
1046	int rc;
1047
1048	rc = vmsvga3dReset(pThis);
1049	AssertRCReturn(rc, rc);
1050
1051	/* Terminate the shader library. */
1052	rc = ShaderDestroyLib();
1053	AssertRC(rc);
1054
1055	#ifdef RT_OS_WINDOWS
1056	/* Terminate the window creation thread. */
1057	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1058	AssertRCReturn(rc, rc);
1059
1060	RTSemEventDestroy(pState->WndRequestSem);
1061	#elif defined(RT_OS_DARWIN)
1062
1063	#elif defined(RT_OS_LINUX)
1064	/* signal to the thread that it is supposed to exit */
1065	pState->bTerminate = true;
1066	/* wait for it to terminate */
1067	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1068	AssertRC(rc);
1069	XCloseDisplay(pState->display);
1070	#endif
1071
1072	RTStrFree(pState->pszExtensions);
1073	pState->pszExtensions = NULL;
1074	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1075	RTStrFree(pState->pszOtherExtensions);
1076	#endif
1077	pState->pszOtherExtensions = NULL;
1078
1079	return VINF_SUCCESS;
1080	}
1081
1082
1083	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1084	{
1085	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1086	* redraw it. */
1087
1088	#ifdef RT_OS_DARWIN
1089	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1090	if ( pState
1091	&& idScreen == 0
1092	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1093	{
1094	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1095	}
1096	#else
1097	NOREF(pThis); NOREF(idScreen);
1098	#endif
1099	}
1100
1101
1102	/**
1103	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1104	* given surface format capability.
1105	*
1106	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1107	* @param pState3D The 3D state.
1108	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1109	*
1110	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1111	* of implicit guest expectations:
1112	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1113	*/
1114	static uint32_t vmsvga3dGetSurfaceFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1115	{
1116	uint32_t result = 0;
1117
1118	/** @todo missing:
1119	*
1120	* SVGA3DFORMAT_OP_PIXELSIZE
1121	*/
1122
1123	switch (idx3dCaps)
1124	{
1125	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1126	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1127	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1128	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1129	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1130	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1131	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1132	break;
1133
1134	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1135	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1136	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1137	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1138	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1139	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1140	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1141	break;
1142	}
1143
1144	/** @todo check hardware caps! */
1145	switch (idx3dCaps)
1146	{
1147	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1148	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1149	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1150	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1151	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1152	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1153	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1154	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1155	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1156	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1157	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1158	result \|= SVGA3DFORMAT_OP_TEXTURE
1159	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1160	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1161	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1162	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1163	\| SVGA3DFORMAT_OP_CUBETEXTURE
1164	\| SVGA3DFORMAT_OP_SRGBREAD
1165	\| SVGA3DFORMAT_OP_SRGBWRITE;
1166	break;
1167
1168	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1169	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1170	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1171	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1172	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1173	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1174	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1175	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1176	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1177	break;
1178
1179	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1180	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1181	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1182	result \|= SVGA3DFORMAT_OP_TEXTURE
1183	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1184	\| SVGA3DFORMAT_OP_CUBETEXTURE
1185	\| SVGA3DFORMAT_OP_SRGBREAD;
1186	break;
1187
1188	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1189	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1190	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1191	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1192	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1193	break;
1194
1195	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1196	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1197	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1198	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1199	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1200	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1201	break;
1202
1203	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1204	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1205	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1206
1207	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1208	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1209	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1210	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1211	break;
1212	}
1213	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1214
1215	return result;
1216	}
1217
1218	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1219	{
1220	uint32_t result = 0;
1221
1222	/** @todo test this somehow */
1223	result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1224
1225	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1226	return result;
1227	}
1228
1229
1230	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1231	{
1232	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1233	AssertReturn(pState, VERR_NO_MEMORY);
1234	int rc = VINF_SUCCESS;
1235
1236	*pu32Val = 0;
1237
1238	/*
1239	* The capabilities access by current (2015-03-01) linux sources (gallium,
1240	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1241	* aren't access.
1242	*/
1243
1244	switch (idx3dCaps)
1245	{
1246	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1247	case SVGA3D_DEVCAP_3D:
1248	pu32Val = 1; / boolean? */
1249	break;
1250
1251	case SVGA3D_DEVCAP_MAX_LIGHTS:
1252	*pu32Val = pState->caps.maxActiveLights;
1253	break;
1254
1255	case SVGA3D_DEVCAP_MAX_TEXTURES:
1256	*pu32Val = pState->caps.maxTextures;
1257	break;
1258
1259	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1260	*pu32Val = pState->caps.maxClipDistances;
1261	break;
1262
1263	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1264	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1265	*pu32Val = pState->caps.vertexShaderVersion;
1266	break;
1267
1268	case SVGA3D_DEVCAP_VERTEX_SHADER:
1269	/* boolean? */
1270	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1271	break;
1272
1273	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1274	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1275	*pu32Val = pState->caps.fragmentShaderVersion;
1276	break;
1277
1278	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1279	/* boolean? */
1280	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1281	break;
1282
1283	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1284	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1285	/* Must be obsolete by now; surface format caps specify the same thing. */
1286	rc = VERR_INVALID_PARAMETER;
1287	break;
1288
1289	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1290	break;
1291
1292	/*
1293	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1294	* return TRUE. Even on physical hardware that does not support
1295	* these formats natively, the SVGA3D device will provide an emulation
1296	* which should be invisible to the guest OS.
1297	*/
1298	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1299	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1300	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1301	*pu32Val = 1;
1302	break;
1303
1304	case SVGA3D_DEVCAP_QUERY_TYPES:
1305	break;
1306
1307	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1308	break;
1309
1310	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1311	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1312	AssertCompile(sizeof(uint32_t) == sizeof(float));
1313	(float )pu32Val = pState->caps.flPointSize[1];
1314	break;
1315
1316	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1317	/** @todo ?? */
1318	rc = VERR_INVALID_PARAMETER;
1319	break;
1320
1321	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1322	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1323	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1324	*pu32Val = pState->caps.maxRectangleTextureSize;
1325	break;
1326
1327	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1328	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1329	//*pu32Val = pCaps->MaxVolumeExtent;
1330	break;
1331
1332	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1333	pu32Val = 32768; / hardcoded in Wine */
1334	break;
1335
1336	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1337	//*pu32Val = pCaps->MaxTextureAspectRatio;
1338	break;
1339
1340	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1341	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1342	*pu32Val = pState->caps.maxTextureAnisotropy;
1343	break;
1344
1345	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1346	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1347	pu32Val = 0xFFFFF; / hardcoded in Wine */
1348	break;
1349
1350	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1351	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1352	*pu32Val = pState->caps.maxVertexShaderInstructions;
1353	break;
1354
1355	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1356	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1357	break;
1358
1359	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1360	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1361	*pu32Val = pState->caps.maxVertexShaderTemps;
1362	break;
1363
1364	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1365	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1366	*pu32Val = pState->caps.maxFragmentShaderTemps;
1367	break;
1368
1369	case SVGA3D_DEVCAP_TEXTURE_OPS:
1370	break;
1371
1372	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1373	break;
1374
1375	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1376	break;
1377
1378	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1379	break;
1380
1381	case SVGA3D_DEVCAP_SUPERSAMPLE:
1382	break;
1383
1384	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1385	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1386	break;
1387
1388	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1389	break;
1390
1391	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1392	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1393	*pu32Val = pState->caps.maxColorAttachments;
1394	break;
1395
1396	/*
1397	* This is the maximum number of SVGA context IDs that the guest
1398	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1399	*/
1400	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1401	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1402	break;
1403
1404	/*
1405	* This is the maximum number of SVGA surface IDs that the guest
1406	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1407	*/
1408	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1409	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1410	break;
1411
1412	#if 0 /* Appeared more recently, not yet implemented. */
1413	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1414	case SVGA3D_DEVCAP_LINE_AA:
1415	break;
1416	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1417	case SVGA3D_DEVCAP_LINE_STIPPLE:
1418	break;
1419	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1420	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1421	break;
1422	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1423	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1424	break;
1425	#endif
1426
1427	/*
1428	* Supported surface formats.
1429	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1430	*/
1431	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1432	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1433	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1434	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1435	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1436	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1437	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1438	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1439	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1440	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1441	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1442	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1443	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1444	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1445	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1446	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1447	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1448	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1449	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1450	break;
1451
1452	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1453	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1454	pu32Val = 0; / apparently not supported in OpenGL */
1455	break;
1456
1457	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1458	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1459	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1460	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1461	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1462	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1463	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1464	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1465	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1466	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1467	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1469	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1470	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1471	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1472	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1473	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1474	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1475	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1476	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1477	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1478	break;
1479
1480	/* Linux: Not referenced in current sources. */
1481	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1482	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1483	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1484	rc = VERR_INVALID_PARAMETER;
1485	*pu32Val = 0;
1486	break;
1487
1488	default:
1489	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1490	rc = VERR_INVALID_PARAMETER;
1491	break;
1492	}
1493
1494	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1495	return rc;
1496	}
1497
1498	/**
1499	* Convert SVGA format value to its OpenGL equivalent
1500	*
1501	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1502	* help from wined3dformat_from_d3dformat().
1503	*/
1504	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1505	{
1506	switch (format)
1507	{
1508	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1509	pSurface->internalFormatGL = GL_RGB8;
1510	pSurface->formatGL = GL_BGRA;
1511	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1512	break;
1513	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1514	pSurface->internalFormatGL = GL_RGBA8;
1515	pSurface->formatGL = GL_BGRA;
1516	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1517	break;
1518	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1519	pSurface->internalFormatGL = GL_RGB5;
1520	pSurface->formatGL = GL_RGB;
1521	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1522	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1523	break;
1524	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1525	pSurface->internalFormatGL = GL_RGB5;
1526	pSurface->formatGL = GL_BGRA;
1527	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1528	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1529	break;
1530	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1531	pSurface->internalFormatGL = GL_RGB5_A1;
1532	pSurface->formatGL = GL_BGRA;
1533	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1534	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1535	break;
1536	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1537	pSurface->internalFormatGL = GL_RGBA4;
1538	pSurface->formatGL = GL_BGRA;
1539	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1540	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1541	break;
1542
1543	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1544	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1545	pSurface->formatGL = GL_DEPTH_COMPONENT;
1546	pSurface->typeGL = GL_UNSIGNED_INT;
1547	break;
1548	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1549	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1550	pSurface->formatGL = GL_DEPTH_COMPONENT;
1551	pSurface->typeGL = GL_UNSIGNED_SHORT;
1552	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1553	break;
1554	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1555	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1556	pSurface->formatGL = GL_DEPTH_STENCIL;
1557	pSurface->typeGL = GL_UNSIGNED_INT;
1558	break;
1559	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1560	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
1561	pSurface->formatGL = GL_DEPTH_STENCIL;
1562	pSurface->typeGL = GL_UNSIGNED_SHORT;
1563	/** @todo Wine sources hints at no hw support for this, so test this one! */
1564	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1565	break;
1566	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1567	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1568	pSurface->formatGL = GL_DEPTH_COMPONENT;
1569	pSurface->typeGL = GL_UNSIGNED_INT;
1570	break;
1571
1572	/* Advanced D3D9 depth formats. */
1573	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1574	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1575	pSurface->formatGL = GL_DEPTH_COMPONENT;
1576	pSurface->typeGL = GL_FLOAT;
1577	break;
1578
1579	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1580	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1581	pSurface->formatGL = GL_DEPTH_COMPONENT;
1582	pSurface->typeGL = GL_FLOAT; /* ??? */
1583	break;
1584
1585	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1586	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1587	pSurface->formatGL = GL_DEPTH_STENCIL;
1588	pSurface->typeGL = GL_INT; /* ??? */
1589	break;
1590
1591	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1592	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1593	#if 0
1594	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1595	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1596	#else /* wine suggests: */
1597	pSurface->formatGL = GL_RGBA;
1598	pSurface->typeGL = GL_UNSIGNED_BYTE;
1599	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1600	#endif
1601	break;
1602
1603	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1604	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1605	#if 0 /** @todo this needs testing... */
1606	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1607	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1608	#else /* wine suggests: */
1609	pSurface->formatGL = GL_RGBA;
1610	pSurface->typeGL = GL_UNSIGNED_BYTE;
1611	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1612	#endif
1613	break;
1614
1615	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1616	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1617	#if 0 /** @todo this needs testing... */
1618	pSurface->formatGL = GL_RGBA_S3TC;
1619	pSurface->typeGL = GL_UNSIGNED_INT;
1620	#else /* wine suggests: */
1621	pSurface->formatGL = GL_RGBA;
1622	pSurface->typeGL = GL_UNSIGNED_BYTE;
1623	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1624	#endif
1625	break;
1626
1627	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1628	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1629	pSurface->formatGL = GL_LUMINANCE;
1630	pSurface->typeGL = GL_UNSIGNED_BYTE;
1631	break;
1632
1633	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1634	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1635	pSurface->formatGL = GL_LUMINANCE;
1636	pSurface->typeGL = GL_UNSIGNED_SHORT;
1637	break;
1638
1639	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1640	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1641	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1642	pSurface->typeGL = GL_UNSIGNED_BYTE;
1643	break;
1644
1645	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1646	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1647	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1648	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1649	break;
1650
1651	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1652	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1653	pSurface->formatGL = GL_ALPHA;
1654	pSurface->typeGL = GL_UNSIGNED_BYTE;
1655	break;
1656
1657	#if 0
1658
1659	/* Bump-map formats */
1660	case SVGA3D_BUMPU8V8:
1661	return D3DFMT_V8U8;
1662	case SVGA3D_BUMPL6V5U5:
1663	return D3DFMT_L6V5U5;
1664	case SVGA3D_BUMPX8L8V8U8:
1665	return D3DFMT_X8L8V8U8;
1666	case SVGA3D_BUMPL8V8U8:
1667	/* No corresponding D3D9 equivalent. */
1668	AssertFailedReturn(D3DFMT_UNKNOWN);
1669	/* signed bump-map formats */
1670	case SVGA3D_V8U8:
1671	return D3DFMT_V8U8;
1672	case SVGA3D_Q8W8V8U8:
1673	return D3DFMT_Q8W8V8U8;
1674	case SVGA3D_CxV8U8:
1675	return D3DFMT_CxV8U8;
1676	/* mixed bump-map formats */
1677	case SVGA3D_X8L8V8U8:
1678	return D3DFMT_X8L8V8U8;
1679	case SVGA3D_A2W10V10U10:
1680	return D3DFMT_A2W10V10U10;
1681	#endif
1682
1683	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1684	pSurface->internalFormatGL = GL_RGBA16F;
1685	pSurface->formatGL = GL_RGBA;
1686	#if 0 /* bird: wine uses half float, sounds correct to me... */
1687	pSurface->typeGL = GL_FLOAT;
1688	#else
1689	pSurface->typeGL = GL_HALF_FLOAT;
1690	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1691	#endif
1692	break;
1693
1694	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1695	pSurface->internalFormatGL = GL_RGBA32F;
1696	pSurface->formatGL = GL_RGBA;
1697	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1698	break;
1699
1700	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1701	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1702	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1703	pSurface->formatGL = GL_RGBA;
1704	#else
1705	pSurface->formatGL = GL_BGRA;
1706	#endif
1707	pSurface->typeGL = GL_UNSIGNED_INT;
1708	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1709	break;
1710
1711
1712	/* Single- and dual-component floating point formats */
1713	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1714	pSurface->internalFormatGL = GL_R16F;
1715	pSurface->formatGL = GL_RED;
1716	#if 0 /* bird: wine uses half float, sounds correct to me... */
1717	pSurface->typeGL = GL_FLOAT;
1718	#else
1719	pSurface->typeGL = GL_HALF_FLOAT;
1720	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1721	#endif
1722	break;
1723	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1724	pSurface->internalFormatGL = GL_R32F;
1725	pSurface->formatGL = GL_RG;
1726	pSurface->typeGL = GL_FLOAT;
1727	break;
1728	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1729	pSurface->internalFormatGL = GL_RG16F;
1730	pSurface->formatGL = GL_RG;
1731	#if 0 /* bird: wine uses half float, sounds correct to me... */
1732	pSurface->typeGL = GL_FLOAT;
1733	#else
1734	pSurface->typeGL = GL_HALF_FLOAT;
1735	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1736	#endif
1737	break;
1738	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1739	pSurface->internalFormatGL = GL_RG32F;
1740	pSurface->formatGL = GL_RG;
1741	pSurface->typeGL = GL_FLOAT;
1742	break;
1743
1744	/*
1745	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1746	* the most efficient format to use when creating new surfaces
1747	* expressly for index or vertex data.
1748	*/
1749	case SVGA3D_BUFFER:
1750	pSurface->internalFormatGL = -1;
1751	pSurface->formatGL = -1;
1752	pSurface->typeGL = -1;
1753	break;
1754
1755	#if 0
1756	return D3DFMT_UNKNOWN;
1757
1758	case SVGA3D_V16U16:
1759	return D3DFMT_V16U16;
1760	#endif
1761
1762	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1763	pSurface->internalFormatGL = GL_RG16;
1764	pSurface->formatGL = GL_RG;
1765	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1766	pSurface->typeGL = GL_UNSIGNED_INT;
1767	#else
1768	pSurface->typeGL = GL_UNSIGNED_SHORT;
1769	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1770	#endif
1771	break;
1772
1773	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1774	pSurface->internalFormatGL = GL_RGBA16;
1775	pSurface->formatGL = GL_RGBA;
1776	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1777	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1778	#else
1779	pSurface->typeGL = GL_UNSIGNED_SHORT;
1780	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1781	#endif
1782	break;
1783
1784	#if 0
1785	/* Packed Video formats */
1786	case SVGA3D_UYVY:
1787	return D3DFMT_UYVY;
1788	case SVGA3D_YUY2:
1789	return D3DFMT_YUY2;
1790
1791	/* Planar video formats */
1792	case SVGA3D_NV12:
1793	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1794
1795	/* Video format with alpha */
1796	case SVGA3D_AYUV:
1797	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1798
1799	case SVGA3D_BC4_UNORM:
1800	case SVGA3D_BC5_UNORM:
1801	/* Unknown; only in DX10 & 11 */
1802	break;
1803	#endif
1804	default:
1805	AssertMsgFailed(("Unsupported format %d\n", format));
1806	break;
1807	}
1808	}
1809
1810
1811	#if 0
1812	/**
1813	* Convert SVGA multi sample count value to its D3D equivalent
1814	*/
1815	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1816	{
1817	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1818	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1819
1820	if (multisampleCount > 16)
1821	return D3DMULTISAMPLE_NONE;
1822
1823	/** @todo exact same mapping as d3d? */
1824	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1825	}
1826	#endif
1827
1828	/**
1829	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1830	*
1831	* @param pState The VMSVGA3d state.
1832	* @param pSurface The surface being destroyed.
1833	*/
1834	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1835	{
1836	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1837	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1838
1839	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1840	{
1841	case SVGA3D_SURFACE_CUBEMAP:
1842	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1843	break;
1844
1845	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1846	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1847	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1848	{
1849	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1850	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1851	}
1852	break;
1853
1854	case SVGA3D_SURFACE_HINT_TEXTURE:
1855	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1856	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1857	{
1858	glDeleteTextures(1, &pSurface->oglId.texture);
1859	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1860	}
1861	break;
1862
1863	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1864	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1865	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1866	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1867	{
1868	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1869	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1870	}
1871	break;
1872
1873	default:
1874	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1875	break;
1876	}
1877	}
1878
1879
1880	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1881	{
1882	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1883	uint32_t sidSrc = src.sid;
1884	uint32_t sidDest = dest.sid;
1885	int rc = VINF_SUCCESS;
1886
1887	AssertReturn(pState, VERR_NO_MEMORY);
1888	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1889	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1890	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1891	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1892
1893	for (uint32_t i = 0; i < cCopyBoxes; i++)
1894	{
1895	SVGA3dBox destBox, srcBox;
1896
1897	srcBox.x = pBox[i].srcx;
1898	srcBox.y = pBox[i].srcy;
1899	srcBox.z = pBox[i].srcz;
1900	srcBox.w = pBox[i].w;
1901	srcBox.h = pBox[i].h;
1902	srcBox.d = pBox[i].z; /* XXX what about pBox[i].d? */
1903
1904	destBox.x = pBox[i].x;
1905	destBox.y = pBox[i].y;
1906	destBox.z = pBox[i].z;
1907	destBox.w = pBox[i].w;
1908	destBox.h = pBox[i].h;
1909	destBox.z = pBox[i].z; /* XXX initializing destBox.z again? What about pBox[i].d and destBox.d? */
1910
1911	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1912	AssertRCReturn(rc, rc);
1913	}
1914	return VINF_SUCCESS;
1915	}
1916
1917
1918	/**
1919	* Save texture unpacking parameters and loads those appropriate for the given
1920	* surface.
1921	*
1922	* @param pState The VMSVGA3D state structure.
1923	* @param pContext The active context.
1924	* @param pSurface The surface.
1925	* @param pSave Where to save stuff.
1926	*/
1927	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1928	PVMSVGAPACKPARAMS pSave)
1929	{
1930	/*
1931	* Save (ignore errors, setting the defaults we want and avoids restore).
1932	*/
1933	pSave->iAlignment = 1;
1934	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1935	pSave->cxRow = 0;
1936	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1937
1938	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1939	pSave->cyImage = 0;
1940	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1941	Assert(pSave->cyImage == 0);
1942
1943	pSave->fSwapBytes = GL_FALSE;
1944	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1945	Assert(pSave->fSwapBytes == GL_FALSE);
1946
1947	pSave->fLsbFirst = GL_FALSE;
1948	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1949	Assert(pSave->fLsbFirst == GL_FALSE);
1950
1951	pSave->cSkipRows = 0;
1952	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1953	Assert(pSave->cSkipRows == 0);
1954
1955	pSave->cSkipPixels = 0;
1956	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1957	Assert(pSave->cSkipPixels == 0);
1958
1959	pSave->cSkipImages = 0;
1960	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1961	Assert(pSave->cSkipImages == 0);
1962
1963	VMSVGA3D_CLEAR_GL_ERRORS();
1964	#endif
1965
1966	/*
1967	* Setup unpack.
1968	*
1969	* Note! We use 1 as alignment here because we currently don't do any
1970	* aligning of line pitches anywhere.
1971	*/
1972	NOREF(pSurface);
1973	if (pSave->iAlignment != 1)
1974	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
1975	if (pSave->cxRow != 0)
1976	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
1977	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1978	if (pSave->cyImage != 0)
1979	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
1980	if (pSave->fSwapBytes != 0)
1981	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
1982	if (pSave->fLsbFirst != 0)
1983	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
1984	if (pSave->cSkipRows != 0)
1985	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
1986	if (pSave->cSkipPixels != 0)
1987	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
1988	if (pSave->cSkipImages != 0)
1989	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
1990	#endif
1991	}
1992
1993
1994	/**
1995	* Restores texture unpacking parameters.
1996	*
1997	* @param pState The VMSVGA3D state structure.
1998	* @param pContext The active context.
1999	* @param pSurface The surface.
2000	* @param pSave Where stuff was saved.
2001	*/
2002	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2003	PCVMSVGAPACKPARAMS pSave)
2004	{
2005	NOREF(pSurface);
2006	if (pSave->iAlignment != 1)
2007	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2008	if (pSave->cxRow != 0)
2009	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2010	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2011	if (pSave->cyImage != 0)
2012	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2013	if (pSave->fSwapBytes != 0)
2014	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2015	if (pSave->fLsbFirst != 0)
2016	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2017	if (pSave->cSkipRows != 0)
2018	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2019	if (pSave->cSkipPixels != 0)
2020	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2021	if (pSave->cSkipImages != 0)
2022	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2023	#endif
2024	}
2025
2026
2027	/**
2028	* Create D3D/OpenGL texture object for the specified surface.
2029	*
2030	* Surfaces are created when needed.
2031	*
2032	* @param pState The VMSVGA3d state.
2033	* @param pContext The context.
2034	* @param idAssociatedContext Probably the same as pContext->id.
2035	* @param pSurface The surface to create the texture for.
2036	*/
2037	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2038	PVMSVGA3DSURFACE pSurface)
2039	{
2040	GLint activeTexture = 0;
2041	uint32_t idPrevCtx = pState->idActiveContext;
2042	pContext = &pState->SharedCtx;
2043	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2044
2045	glGenTextures(1, &pSurface->oglId.texture);
2046	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2047	/** @todo Set the mip map generation filter settings. */
2048
2049	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2051
2052	/* Must bind texture to the current context in order to change it. */
2053	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2055
2056	/* Set the unpacking parameters. */
2057	VMSVGAPACKPARAMS SavedParams;
2058	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2059
2060	/* Set the mipmap base and max level paramters. */
2061	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2062	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2063	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2064	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2065
2066	if (pSurface->fDirty)
2067	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2068
2069	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2070	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2071	{
2072	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2073	exposing random host memory to the guest and helps a with the fedora 21 surface
2074	corruption issues (launchpad, background, search field, login). */
2075	if (pSurface->pMipmapLevels[i].fDirty)
2076	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2077
2078	glTexImage2D(GL_TEXTURE_2D,
2079	i,
2080	pSurface->internalFormatGL,
2081	pSurface->pMipmapLevels[i].size.width,
2082	pSurface->pMipmapLevels[i].size.height,
2083	0,
2084	pSurface->formatGL,
2085	pSurface->typeGL,
2086	pSurface->pMipmapLevels[i].pSurfaceData);
2087
2088	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2089
2090	pSurface->pMipmapLevels[i].fDirty = false;
2091	}
2092	pSurface->fDirty = false;
2093
2094	/* Restore unpacking parameters. */
2095	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2096
2097	/* Restore the old active texture. */
2098	glBindTexture(GL_TEXTURE_2D, activeTexture);
2099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2100
2101	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2102
2103	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2104	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2105	return VINF_SUCCESS;
2106	}
2107
2108
2109	/**
2110	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2111	*
2112	* @returns VBox status code.
2113	* @param pThis The VGA device instance.
2114	* @param pState The VMSVGA3d state.
2115	* @param pDstSurface The destination host surface.
2116	* @param uDstMipmap The destination mipmap level (valid).
2117	* @param pDstBox The destination box.
2118	* @param pSrcSurface The source host surface.
2119	* @param uSrcMipmap The source mimap level (valid).
2120	* @param pSrcBox The source box.
2121	* @param enmMode The strecht blt mode .
2122	* @param pContext The VMSVGA3d context (already current for OGL).
2123	*/
2124	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2125	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2126	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2127	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2128	{
2129	/* Activate the read and draw framebuffer objects. */
2130	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2131	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2132	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2134
2135	/* Bind the source and destination objects to the right place. */
2136	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2137	pSrcSurface->oglId.texture, uSrcMipmap);
2138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2139	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2140	pDstSurface->oglId.texture, uDstMipmap);
2141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2142
2143	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),
2144	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2145	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2146
2147	pState->ext.glBlitFramebuffer(pSrcBox->x,
2148	#ifdef MANUAL_FLIP_SURFACE_DATA
2149	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2150	#else
2151	pSrcBox->y,
2152	#endif
2153	pSrcBox->x + pSrcBox->w, /* exclusive. */
2154	#ifdef MANUAL_FLIP_SURFACE_DATA
2155	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2156	#else
2157	pSrcBox->y + pSrcBox->h,
2158	#endif
2159	pDstBox->x,
2160	#ifdef MANUAL_FLIP_SURFACE_DATA
2161	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2162	#else
2163	pDstBox->y,
2164	#endif
2165	pDstBox->x + pDstBox->w, /* exclusive. */
2166	#ifdef MANUAL_FLIP_SURFACE_DATA
2167	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2168	#else
2169	pDstBox->y + pDstBox->h,
2170	#endif
2171	GL_COLOR_BUFFER_BIT,
2172	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2173	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2174
2175	/* Reset the frame buffer association */
2176	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2177	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2178
2179	return VINF_SUCCESS;
2180	}
2181
2182	/**
2183	* Save texture packing parameters and loads those appropriate for the given
2184	* surface.
2185	*
2186	* @param pState The VMSVGA3D state structure.
2187	* @param pContext The active context.
2188	* @param pSurface The surface.
2189	* @param pSave Where to save stuff.
2190	*/
2191	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2192	PVMSVGAPACKPARAMS pSave)
2193	{
2194	/*
2195	* Save (ignore errors, setting the defaults we want and avoids restore).
2196	*/
2197	pSave->iAlignment = 1;
2198	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2199	pSave->cxRow = 0;
2200	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2201
2202	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2203	pSave->cyImage = 0;
2204	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2205	Assert(pSave->cyImage == 0);
2206
2207	pSave->fSwapBytes = GL_FALSE;
2208	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2209	Assert(pSave->fSwapBytes == GL_FALSE);
2210
2211	pSave->fLsbFirst = GL_FALSE;
2212	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2213	Assert(pSave->fLsbFirst == GL_FALSE);
2214
2215	pSave->cSkipRows = 0;
2216	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2217	Assert(pSave->cSkipRows == 0);
2218
2219	pSave->cSkipPixels = 0;
2220	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2221	Assert(pSave->cSkipPixels == 0);
2222
2223	pSave->cSkipImages = 0;
2224	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2225	Assert(pSave->cSkipImages == 0);
2226
2227	VMSVGA3D_CLEAR_GL_ERRORS();
2228	#endif
2229
2230	/*
2231	* Setup unpack.
2232	*
2233	* Note! We use 1 as alignment here because we currently don't do any
2234	* aligning of line pitches anywhere.
2235	*/
2236	NOREF(pSurface);
2237	if (pSave->iAlignment != 1)
2238	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2239	if (pSave->cxRow != 0)
2240	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2241	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2242	if (pSave->cyImage != 0)
2243	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2244	if (pSave->fSwapBytes != 0)
2245	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2246	if (pSave->fLsbFirst != 0)
2247	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2248	if (pSave->cSkipRows != 0)
2249	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2250	if (pSave->cSkipPixels != 0)
2251	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2252	if (pSave->cSkipImages != 0)
2253	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2254	#endif
2255	}
2256
2257
2258	/**
2259	* Restores texture packing parameters.
2260	*
2261	* @param pState The VMSVGA3D state structure.
2262	* @param pContext The active context.
2263	* @param pSurface The surface.
2264	* @param pSave Where stuff was saved.
2265	*/
2266	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2267	PCVMSVGAPACKPARAMS pSave)
2268	{
2269	NOREF(pSurface);
2270	if (pSave->iAlignment != 1)
2271	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2272	if (pSave->cxRow != 0)
2273	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2274	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2275	if (pSave->cyImage != 0)
2276	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2277	if (pSave->fSwapBytes != 0)
2278	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2279	if (pSave->fLsbFirst != 0)
2280	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2281	if (pSave->cSkipRows != 0)
2282	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2283	if (pSave->cSkipPixels != 0)
2284	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2285	if (pSave->cSkipImages != 0)
2286	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2287	#endif
2288	}
2289
2290
2291	/**
2292	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2293	*
2294	* @returns Failure status code or @a rc.
2295	* @param pThis The VGA device instance data.
2296	* @param pState The VMSVGA3d state.
2297	* @param pSurface The host surface.
2298	* @param uHostMipmap The host mipmap level (valid).
2299	* @param GuestPtr The guest pointer.
2300	* @param cbSrcPitch The guest (?) pitch.
2301	* @param transfer The transfer direction.
2302	* @param pBox The box to copy.
2303	* @param pContext The context (for OpenGL).
2304	* @param rc The current rc for all boxes.
2305	* @param iBox The current box number (for Direct 3D).
2306	*/
2307	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface, uint32_t uHostMipmap,
2308	SVGAGuestPtr GuestPtr, uint32_t cbSrcPitch, SVGA3dTransferType transfer,
2309	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2310	{
2311	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[uHostMipmap];
2312
2313	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2314	{
2315	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2316	case SVGA3D_SURFACE_HINT_TEXTURE:
2317	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2318	{
2319	uint32_t cbSurfacePitch;
2320	uint8_t pDoubleBuffer, pBufferStart;
2321	unsigned uDestOffset = 0;
2322
2323	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2324	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2325
2326	if (transfer == SVGA3D_READ_HOST_VRAM)
2327	{
2328	GLint activeTexture;
2329
2330	/* Must bind texture to the current context in order to read it. */
2331	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2332	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2333
2334	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2335	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2336
2337	/* Set row length and alignment of the input data. */
2338	VMSVGAPACKPARAMS SavedParams;
2339	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2340
2341	glGetTexImage(GL_TEXTURE_2D,
2342	uHostMipmap,
2343	pSurface->formatGL,
2344	pSurface->typeGL,
2345	pDoubleBuffer);
2346	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2347
2348	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2349
2350	/* Restore the old active texture. */
2351	glBindTexture(GL_TEXTURE_2D, activeTexture);
2352	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2353
2354	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2355	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2356	<= pMipLevel->cbSurface,
2357	RTMemFree(pDoubleBuffer),
2358	VERR_INTERNAL_ERROR);
2359
2360	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2361
2362	#ifdef MANUAL_FLIP_SURFACE_DATA
2363	pBufferStart = pDoubleBuffer
2364	+ pBox->x * pSurface->cbBlock
2365	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2366	- cbSurfacePitch; /* flip image during copy */
2367	#else
2368	pBufferStart = pDoubleBuffer + uDestOffset;
2369	#endif
2370	}
2371	else
2372	{
2373	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2374	#ifdef MANUAL_FLIP_SURFACE_DATA
2375	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2376	#else
2377	pBufferStart = pDoubleBuffer;
2378	#endif
2379	}
2380
2381	rc = vmsvgaGMRTransfer(pThis,
2382	transfer,
2383	pBufferStart,
2384	#ifdef MANUAL_FLIP_SURFACE_DATA
2385	-(int32_t)cbSurfacePitch,
2386	#else
2387	(int32_t)cbSurfacePitch,
2388	#endif
2389	GuestPtr,
2390	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2391	cbSrcPitch,
2392	pBox->w * pSurface->cbBlock,
2393	pBox->h);
2394	AssertRC(rc);
2395
2396	/* Update the opengl surface data. */
2397	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2398	{
2399	GLint activeTexture = 0;
2400
2401	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2402	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2403
2404	/* Must bind texture to the current context in order to change it. */
2405	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2406	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2407
2408	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2409
2410	/* Set row length and alignment of the input data. */
2411	VMSVGAPACKPARAMS SavedParams;
2412	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2413
2414	glTexSubImage2D(GL_TEXTURE_2D,
2415	uHostMipmap,
2416	pBox->x,
2417	pBox->y,
2418	pBox->w,
2419	pBox->h,
2420	pSurface->formatGL,
2421	pSurface->typeGL,
2422	pDoubleBuffer);
2423
2424	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2425
2426	/* Restore old values. */
2427	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2428
2429	/* Restore the old active texture. */
2430	glBindTexture(GL_TEXTURE_2D, activeTexture);
2431	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2432	}
2433
2434	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2435
2436	/* Free the double buffer. */
2437	RTMemFree(pDoubleBuffer);
2438	break;
2439	}
2440
2441	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2442	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2443	break;
2444
2445	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2446	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2447	{
2448	Assert(pBox->h == 1);
2449
2450	VMSVGA3D_CLEAR_GL_ERRORS();
2451	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2452	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2453	{
2454	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2455	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2456	if (RT_LIKELY(pbData != NULL))
2457	{
2458	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2459	GLint cbStrictBufSize;
2460	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2461	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2462	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2463	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2464	#endif
2465
2466	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2467	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2468	<= pMipLevel->cbSurface))
2469	{
2470	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" : "index",
2471	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2472
2473	rc = vmsvgaGMRTransfer(pThis,
2474	transfer,
2475	pbData + offDst,
2476	pMipLevel->cbSurfacePitch,
2477	GuestPtr,
2478	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2479	cbSrcPitch,
2480	pBox->w * pSurface->cbBlock,
2481	pBox->h);
2482	AssertRC(rc);
2483
2484	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
2485	}
2486	else
2487	{
2488	AssertFailed();
2489	rc = VERR_INTERNAL_ERROR;
2490	}
2491
2492	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2493	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2494	}
2495	else
2496	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2497	}
2498	else
2499	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2500	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2502	break;
2503	}
2504
2505	default:
2506	AssertFailed();
2507	break;
2508	}
2509
2510	return rc;
2511	}
2512
2513
2514	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2515	{
2516	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2517	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));
2518	for (uint32_t i = 0; i < cRects; i++)
2519	{
2520	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2521	}
2522
2523	/** @todo Only screen 0 for now. */
2524	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2525	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2526	/** @todo scaling */
2527	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2528
2529	if (cRects == 0)
2530	{
2531	/* easy case; no clipping */
2532	SVGA3dCopyBox box;
2533	SVGA3dGuestImage dst;
2534
2535	box.x = destRect.left;
2536	box.y = destRect.top;
2537	box.z = 0;
2538	box.w = destRect.right - destRect.left;
2539	box.h = destRect.bottom - destRect.top;
2540	box.d = 1;
2541	box.srcx = srcRect.left;
2542	box.srcy = srcRect.top;
2543	box.srcz = 0;
2544
2545	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2546	dst.ptr.offset = 0;
2547	dst.pitch = pThis->svga.cbScanline;
2548
2549	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2550	AssertRCReturn(rc, rc);
2551
2552	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2553	return VINF_SUCCESS;
2554	}
2555	else
2556	{
2557	SVGA3dGuestImage dst;
2558	SVGA3dCopyBox box;
2559
2560	box.srcz = 0;
2561	box.z = 0;
2562	box.d = 1;
2563
2564	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2565	dst.ptr.offset = 0;
2566	dst.pitch = pThis->svga.cbScanline;
2567
2568	/** @todo merge into one SurfaceDMA call */
2569	for (uint32_t i = 0; i < cRects; i++)
2570	{
2571	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2572	box.srcx = srcRect.left + pRect[i].left;
2573	box.srcy = srcRect.top + pRect[i].top;
2574
2575	box.x = pRect[i].left + destRect.left;
2576	box.y = pRect[i].top + destRect.top;
2577	box.z = 0;
2578	box.w = pRect[i].right - pRect[i].left;
2579	box.h = pRect[i].bottom - pRect[i].top;
2580
2581	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2582	AssertRCReturn(rc, rc);
2583
2584	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2585	}
2586
2587	return VINF_SUCCESS;
2588	}
2589	}
2590
2591	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2592	{
2593	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2594	PVMSVGA3DSURFACE pSurface;
2595	int rc = VINF_SUCCESS;
2596	PVMSVGA3DCONTEXT pContext;
2597	uint32_t cid;
2598	GLint activeTexture = 0;
2599
2600	AssertReturn(pState, VERR_NO_MEMORY);
2601	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2602	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2603
2604	pSurface = pState->papSurfaces[sid];
2605
2606	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2607	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2608	pSurface->autogenFilter = filter;
2609
2610	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2611
2612	cid = SVGA3D_INVALID_ID;
2613	pContext = &pState->SharedCtx;
2614	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2615
2616	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2617	{
2618	/* Unknown surface type; turn it into a texture. */
2619	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
2620	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2621	AssertRCReturn(rc, rc);
2622	}
2623	else
2624	{
2625	/** @todo new filter */
2626	AssertFailed();
2627	}
2628
2629	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2630	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2631
2632	/* Must bind texture to the current context in order to change it. */
2633	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2634	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2635
2636	/* Generate the mip maps. */
2637	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2638	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2639
2640	/* Restore the old texture. */
2641	glBindTexture(GL_TEXTURE_2D, activeTexture);
2642	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2643
2644	return VINF_SUCCESS;
2645	}
2646
2647	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2648	{
2649	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2650	PVMSVGA3DSURFACE pSurface;
2651	int rc = VINF_SUCCESS;
2652	PVMSVGA3DCONTEXT pContext;
2653	uint32_t cid;
2654
2655	AssertReturn(pState, VERR_NO_MEMORY);
2656	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2657	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2658
2659	pSurface = pState->papSurfaces[sid];
2660
2661	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2662	for (uint32_t i=0; i < cRects; i++)
2663	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));
2664
2665	pContext = &pState->SharedCtx;
2666	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2667	cid = pContext->id;
2668	VMSVGA3D_CLEAR_GL_ERRORS();
2669
2670	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2671	/*
2672	* Source surface different size?
2673	*/
2674	RTRECT2 srcViewPort;
2675	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2676	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2677	{
2678	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2679	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2680
2681	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2682	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2683	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2684	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2685
2686	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2687	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2688	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2689	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2690	}
2691	else
2692	{
2693	srcViewPort.x = pThis->svga.viewport.x;
2694	srcViewPort.y = pThis->svga.viewport.y;
2695	srcViewPort.cx = pThis->svga.viewport.cx;
2696	srcViewPort.cy = pThis->svga.viewport.cy;
2697	}
2698	RTRECT SrcViewPortRect;
2699	SrcViewPortRect.xLeft = srcViewPort.x;
2700	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2701	SrcViewPortRect.yBottom = srcViewPort.y;
2702	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2703	#endif
2704
2705
2706	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2707	/*
2708	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2709	*/
2710	SVGA3dCopyRect rect;
2711	uint32_t oldVShader, oldPShader;
2712	GLint oldTextureId;
2713
2714	if (cRects == 0)
2715	{
2716	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2717	rect.w = pSurface->pMipmapLevels[0].size.width;
2718	rect.h = pSurface->pMipmapLevels[0].size.height;
2719	pRect = &rect;
2720	cRects = 1;
2721	}
2722
2723	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2724
2725	#if 0
2726	glDisable(GL_CULL_FACE);
2727	glDisable(GL_BLEND);
2728	glDisable(GL_ALPHA_TEST);
2729	glDisable(GL_SCISSOR_TEST);
2730	glDisable(GL_STENCIL_TEST);
2731	glEnable(GL_DEPTH_TEST);
2732	glDepthFunc(GL_ALWAYS);
2733	glDepthMask(GL_TRUE);
2734	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2735	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2736	#endif
2737
2738	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2739
2740	oldVShader = pContext->state.shidVertex;
2741	oldPShader = pContext->state.shidPixel;
2742	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2743	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2744
2745	/* Flush shader changes. */
2746	if (pContext->pShaderContext)
2747	ShaderUpdateState(pContext->pShaderContext, 0);
2748
2749	/* Activate the read and draw framebuffer objects. */
2750	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2751	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2752
2753	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2754	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2755	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2756
2757	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2758	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2759
2760	#if 0
2761	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2762	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2763	#endif
2764
2765	/* Reset the transformation matrices. */
2766	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2767	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2768	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2769	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2770	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2771	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2772	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2773	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2774
2775	for (uint32_t i = 0; i < cRects; i++)
2776	{
2777	float left, right, top, bottom; /* Texture coordinates */
2778	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2779
2780	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2781	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2782	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2783	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2784	pRect[i].w = pThis->svga.viewport.cx;
2785	pRect[i].h = pThis->svga.viewport.cy;
2786
2787	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2788	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2789	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2790	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2791	{
2792	/* Intersection is empty; skip */
2793	continue;
2794	}
2795
2796	left = pRect[i].srcx;
2797	right = pRect[i].srcx + pRect[i].w;
2798	top = pRect[i].srcy + pRect[i].h;
2799	bottom = pRect[i].srcy;
2800
2801	left /= pSurface->pMipmapLevels[0].size.width;
2802	right /= pSurface->pMipmapLevels[0].size.width;
2803	top /= pSurface->pMipmapLevels[0].size.height;
2804	bottom /= pSurface->pMipmapLevels[0].size.height;
2805
2806	vertexLeft = pRect[i].x;
2807	vertexRight = pRect[i].x + pRect[i].w;
2808	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2809	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2810
2811	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2812	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2813	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)));
2814
2815	glBegin(GL_QUADS);
2816
2817	/* bottom left */
2818	glTexCoord2f(left, bottom);
2819	glVertex2i(vertexLeft, vertexBottom);
2820
2821	/* top left */
2822	glTexCoord2f(left, top);
2823	glVertex2i(vertexLeft, vertexTop);
2824
2825	/* top right */
2826	glTexCoord2f(right, top);
2827	glVertex2i(vertexRight, vertexTop);
2828
2829	/* bottom right */
2830	glTexCoord2f(right, bottom);
2831	glVertex2i(vertexRight, vertexBottom);
2832
2833	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2834	}
2835
2836	/* Restore old settings. */
2837	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2838	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2839	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2840	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2841
2842	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2843
2844	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2845	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2846	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2847
2848	#else
2849	/*
2850	* glBlitFramebuffer variant.
2851	*/
2852	/* Activate the read and draw framebuffer objects. */
2853	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2854	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2855	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2856	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2857
2858	/* Bind the source objects to the right place. */
2859	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2860	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2861
2862
2863	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2864	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2865	ASMCompilerBarrier(); /* paranoia */
2866	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2867
2868	/* If there are no recangles specified, just grab a screenful. */
2869	SVGA3dCopyRect DummyRect;
2870	if (cRects != 0)
2871	{ /* likely */ }
2872	else
2873	{
2874	/** @todo Find the usecase for this or check what the original device does.
2875	* The original code was doing some scaling based on the surface
2876	* size... */
2877	# ifdef DEBUG_bird
2878	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2879	# endif
2880	DummyRect.x = DummyRect.srcx = 0;
2881	DummyRect.y = DummyRect.srcy = 0;
2882	DummyRect.w = pThis->svga.uWidth;
2883	DummyRect.h = pThis->svga.uHeight;
2884	cRects = 1;
2885	pRect = &DummyRect;
2886	}
2887
2888	/*
2889	* Blit the surface rectangle(s) to the back buffer.
2890	*/
2891	uint32_t const cxSurface = pSurface->pMipmapLevels[0].size.width;
2892	uint32_t const cySurface = pSurface->pMipmapLevels[0].size.height;
2893	for (uint32_t i = 0; i < cRects; i++)
2894	{
2895	SVGA3dCopyRect ClippedRect = pRect[i];
2896
2897	/*
2898	* Do some sanity checking and limit width and height, all so we
2899	* don't need to think about wrap-arounds below.
2900	*/
2901	if (RT_LIKELY( ClippedRect.w
2902	&& ClippedRect.x < VMSVGA_MAX_X
2903	&& ClippedRect.srcx < VMSVGA_MAX_X
2904	&& ClippedRect.h
2905	&& ClippedRect.y < VMSVGA_MAX_Y
2906	&& ClippedRect.srcy < VMSVGA_MAX_Y
2907	))
2908	{ /* likely */ }
2909	else
2910	continue;
2911
2912	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2913	{ /* likely */ }
2914	else
2915	ClippedRect.w = VMSVGA_MAX_Y;
2916	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2917	{ /* likely */ }
2918	else
2919	ClippedRect.w = VMSVGA_MAX_Y;
2920
2921
2922	/*
2923	* Source surface clipping (paranoia). Straight forward.
2924	*/
2925	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2926	{ /* likely */ }
2927	else
2928	continue;
2929	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2930	{ /* likely */ }
2931	else
2932	{
2933	AssertFailed(); /* remove if annoying. */
2934	ClippedRect.w = cxSurface - ClippedRect.srcx;
2935	}
2936
2937	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2938	{ /* likely */ }
2939	else
2940	continue;
2941	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2942	{ /* likely */ }
2943	else
2944	{
2945	AssertFailed(); /* remove if annoying. */
2946	ClippedRect.h = cySurface - ClippedRect.srcy;
2947	}
2948
2949	/*
2950	* Destination viewport clipping - real PITA.
2951	*
2952	* We have to take the following into account here:
2953	* - The source image is Y inverted.
2954	* - The destination framebuffer is in world and not window coordinates,
2955	* just like the source surface. This means working in the first quadrant.
2956	* - The viewport is in window coordinate, that is fourth quadrant and
2957	* negated Y values.
2958	* - The destination framebuffer is not scrolled, so we have to blit
2959	* what's visible into the top of the framebuffer.
2960	*
2961	*
2962	* To illustrate:
2963	*
2964	* source destination 0123456789
2965	* 8 ^---------- 8 ^---------- 0 ----------->
2966	* 7 \| \| 7 \| \| 1 \| \|
2967	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
2968	* 5 \| *** \| 5 \| * \| 3 \| * \|
2969	* 4 \| * \| => 4 \| * \| => 4 \| * \|
2970	* 3 \| * \| 3 \| * \| 5 \| * \|
2971	* 2 \| ******* \| 2 \| \| 6 \| \|
2972	* 1 \| \| 1 \| \| 7 \| \|
2973	* 0 -----------> 0 -----------> 8 v----------
2974	* 0123456789 0123456789 Destination window
2975	*
2976	* From the above, it follows that a destination viewport given in
2977	* window coordinates matches the source exactly when srcy = srcx = 0.
2978	*
2979	* Example (Y only):
2980	* ySrc = 0
2981	* yDst = 0
2982	* cyCopy = 9
2983	* cyScreen = cyCopy
2984	* cySurface >= cyCopy
2985	* yViewport = 5
2986	* cyViewport = 2 (i.e. '\| *** \|'
2987	* '\| \|' )
2988	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
2989	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
2990	*
2991	* We can see from the illustration that the final result should be:
2992	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
2993	* DstRect = (0,2) (11, 4)
2994	*
2995	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
2996	* easier to follow:
2997	* SrcRect = (0,5) (11, 7)
2998	*
2999	* From the top, Y values only:
3000	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3001	*
3002	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3003	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3004	* Copy.yDst += cyAdjust = 2;
3005	* Copy.ySrc = unchanged;
3006	* Copy.cx -= cyAdjust = 7;
3007	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3008	*
3009	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3010	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3011	* Copy.yDst = unchanged;
3012	* Copy.ySrc += cyAdjust = 5;
3013	* Copy.cx -= cyAdjust = 2;
3014	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3015	*
3016	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3017	* when the view is resized, moved and otherwise messed with,
3018	* the visible part of the framebuffer is actually the bottom
3019	* one. It's easy to adjust for this, just have to adjust the
3020	* destination rectangle such that yBottom is zero.
3021	*/
3022	/* X - no inversion, so kind of simple. */
3023	if (ClippedRect.x >= DstViewport.x)
3024	{
3025	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3026	{ /* typical */ }
3027	else if (ClippedRect.x < DstViewport.xRight)
3028	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3029	else
3030	continue;
3031	}
3032	else
3033	{
3034	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3035	if (cxAdjust < ClippedRect.w)
3036	{
3037	ClippedRect.w -= cxAdjust;
3038	ClippedRect.x += cxAdjust;
3039	ClippedRect.srcx += cxAdjust;
3040	}
3041	else
3042	continue;
3043
3044	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3045	{ /* typical */ }
3046	else
3047	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3048	}
3049
3050	/* Y - complicated, see above. */
3051	if (ClippedRect.y >= DstViewport.yLowWC)
3052	{
3053	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3054	{ /* typical */ }
3055	else if (ClippedRect.y < DstViewport.yHighWC)
3056	{
3057	/* adjustment #2 */
3058	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3059	ClippedRect.srcy += cyAdjust;
3060	ClippedRect.h -= cyAdjust;
3061	}
3062	else
3063	continue;
3064	}
3065	else
3066	{
3067	/* adjustment #1 */
3068	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3069	if (cyAdjust < ClippedRect.h)
3070	{
3071	ClippedRect.y += cyAdjust;
3072	ClippedRect.h -= cyAdjust;
3073	}
3074	else
3075	continue;
3076
3077	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3078	{ /* typical */ }
3079	else
3080	{
3081	/* adjustment #2 */
3082	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3083	ClippedRect.srcy += cyAdjust;
3084	ClippedRect.h -= cyAdjust;
3085	}
3086	}
3087
3088	/* Calc source rectangle with y flipping wrt destination. */
3089	RTRECT SrcRect;
3090	SrcRect.xLeft = ClippedRect.srcx;
3091	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3092	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3093	SrcRect.yTop = ClippedRect.srcy;
3094
3095	/* Calc destination rectangle. */
3096	RTRECT DstRect;
3097	DstRect.xLeft = ClippedRect.x;
3098	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3099	DstRect.yBottom = ClippedRect.y;
3100	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3101
3102	/* Adjust for viewport. */
3103	DstRect.xLeft -= DstViewport.x;
3104	DstRect.xRight -= DstViewport.x;
3105	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3106	DstRect.yTop -= DstRect.yBottom;
3107	DstRect.yBottom = 0;
3108	# else
3109	DstRect.yBottom += DstViewport.y;
3110	DstRect.yTop += DstViewport.y;
3111	# endif
3112
3113	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3114	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3115	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3116	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3117	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3118	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3119	}
3120
3121	#endif
3122
3123	/*
3124	* Flip the front and back buffers.
3125	*/
3126	#ifdef RT_OS_WINDOWS
3127	BOOL ret = SwapBuffers(pContext->hdc);
3128	AssertMsg(ret, ("SwapBuffers failed with %d\n", GetLastError()));
3129	#elif defined(RT_OS_DARWIN)
3130	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3131	#else
3132	/* show the window if not already done */
3133	if (!pContext->fMapped)
3134	{
3135	XMapWindow(pState->display, pContext->window);
3136	pContext->fMapped = true;
3137	}
3138	/* now swap the buffers, i.e. display the rendering result */
3139	glXSwapBuffers(pState->display, pContext->window);
3140	#endif
3141
3142	/*
3143	* Now we can reset the frame buffer association. Doing it earlier means no
3144	* output on darwin.
3145	*/
3146	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3147	return VINF_SUCCESS;
3148	}
3149
3150	#ifdef RT_OS_LINUX
3151	/**
3152	* X11 event handling thread
3153	* @param ThreadSelf thread handle
3154	* @param pvUser pointer to pState structure
3155	* @returns VBox status code
3156	*/
3157	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
3158	{
3159	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3160	while (!pState->bTerminate)
3161	{
3162	while (XPending(pState->display) > 0)
3163	{
3164	XEvent event;
3165	XNextEvent(pState->display, &event);
3166
3167	switch (event.type)
3168	{
3169	default:
3170	break;
3171	}
3172	}
3173	/* sleep for 16ms to not burn too many cycles */
3174	RTThreadSleep(16);
3175	}
3176	return VINF_SUCCESS;
3177	}
3178	#endif // RT_OS_LINUX
3179
3180
3181	/**
3182	* Create a new 3d context
3183	*
3184	* @returns VBox status code.
3185	* @param pThis VGA device instance data.
3186	* @param cid Context id
3187	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3188	*/
3189	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3190	{
3191	int rc;
3192	PVMSVGA3DCONTEXT pContext;
3193	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3194
3195	AssertReturn(pState, VERR_NO_MEMORY);
3196	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3197	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3198	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3199	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3200	#endif
3201
3202	Log(("vmsvga3dContextDefine id %x\n", cid));
3203	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3204	if (pState->idTestContext == SVGA_ID_INVALID)
3205	{
3206	pState->idTestContext = 207;
3207	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3208	AssertRCReturn(rc, rc);
3209	}
3210	#endif
3211
3212	if (cid == VMSVGA3D_SHARED_CTX_ID)
3213	pContext = &pState->SharedCtx;
3214	else
3215	{
3216	if (cid >= pState->cContexts)
3217	{
3218	/* Grow the array. */
3219	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3220	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3221	AssertReturn(pvNew, VERR_NO_MEMORY);
3222	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3223	while (pState->cContexts < cNew)
3224	{
3225	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3226	AssertReturn(pContext, VERR_NO_MEMORY);
3227	pContext->id = SVGA3D_INVALID_ID;
3228	pState->papContexts[pState->cContexts++] = pContext;
3229	}
3230	}
3231	/* If one already exists with this id, then destroy it now. */
3232	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3233	vmsvga3dContextDestroy(pThis, cid);
3234
3235	pContext = pState->papContexts[cid];
3236	}
3237
3238	/*
3239	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3240	*/
3241	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3242	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3243	{
3244	pSharedCtx = &pState->SharedCtx;
3245	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3246	{
3247	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3248	AssertLogRelRCReturn(rc, rc);
3249	}
3250	}
3251
3252	/*
3253	* Initialize the context.
3254	*/
3255	memset(pContext, 0, sizeof(*pContext));
3256	pContext->id = cid;
3257	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3258	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3259
3260	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3261	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3262	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3263	pContext->idFramebuffer = OPENGL_INVALID_ID;
3264	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3265	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3266
3267	rc = ShaderContextCreate(&pContext->pShaderContext);
3268	AssertRCReturn(rc, rc);
3269
3270	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3271	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3272
3273	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3274
3275	#ifdef RT_OS_WINDOWS
3276	/* Create a context window. */
3277	CREATESTRUCT cs;
3278	cs.lpCreateParams = NULL;
3279	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3280	# ifdef DEBUG_GFX_WINDOW
3281	cs.lpszName = (char *)RTMemAllocZ(256);
3282	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3283	# else
3284	cs.lpszName = NULL;
3285	# endif
3286	cs.lpszClass = 0;
3287	# ifdef DEBUG_GFX_WINDOW
3288	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3289	# else
3290	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3291	# endif
3292	cs.x = 0;
3293	cs.y = 0;
3294	cs.cx = pThis->svga.uWidth;
3295	cs.cy = pThis->svga.uHeight;
3296	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3297	cs.hMenu = NULL;
3298	cs.hInstance = pState->hInstance;
3299
3300	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3301	AssertRCReturn(rc, rc);
3302
3303	pContext->hdc = GetDC(pContext->hwnd);
3304	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3305
3306	PIXELFORMATDESCRIPTOR pfd = {
3307	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3308	1, /* version number */
3309	PFD_DRAW_TO_WINDOW \| /* support window */
3310	PFD_DOUBLEBUFFER \| /* support double buffering */
3311	PFD_SUPPORT_OPENGL, /* support OpenGL */
3312	PFD_TYPE_RGBA, /* RGBA type */
3313	24, /* 24-bit color depth */
3314	0, 0, 0, 0, 0, 0, /* color bits ignored */
3315	8, /* alpha buffer */
3316	0, /* shift bit ignored */
3317	0, /* no accumulation buffer */
3318	0, 0, 0, 0, /* accum bits ignored */
3319	16, /* set depth buffer */
3320	16, /* set stencil buffer */
3321	0, /* no auxiliary buffer */
3322	PFD_MAIN_PLANE, /* main layer */
3323	0, /* reserved */
3324	0, 0, 0 /* layer masks ignored */
3325	};
3326	int pixelFormat;
3327	BOOL ret;
3328
3329	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3330	/** @todo is this really necessary?? */
3331	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3332	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3333
3334	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3335	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3336
3337	pContext->hglrc = wglCreateContext(pContext->hdc);
3338	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3339
3340	if (pSharedCtx)
3341	{
3342	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3343	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3344	}
3345
3346	#elif defined(RT_OS_DARWIN)
3347	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3348
3349	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3350	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3351	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3352	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3353	pThis->svga.uWidth, pThis->svga.uHeight,
3354	pShareContext, pContext->fOtherProfile);
3355
3356	#else
3357	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3358
3359	if (pState->display == NULL)
3360	{
3361	/* get an X display and make sure we have glX 1.3 */
3362	pState->display = XOpenDisplay(0);
3363	Assert(pState->display);
3364	int glxMajor, glxMinor;
3365	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3366	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3367	/* start our X event handling thread */
3368	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3369	if (RT_FAILURE(rc))
3370	{
3371	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3372	return rc;
3373	}
3374	}
3375	int attrib[] =
3376	{
3377	GLX_RGBA,
3378	GLX_RED_SIZE, 1,
3379	GLX_GREEN_SIZE, 1,
3380	GLX_BLUE_SIZE, 1,
3381	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3382	GLX_DOUBLEBUFFER,
3383	None
3384	};
3385	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3386	XSetWindowAttributes swa;
3387	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3388	swa.border_pixel = 0;
3389	swa.background_pixel = 0;
3390	swa.event_mask = StructureNotifyMask \| ExposureMask;
3391	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3392	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3393	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3394	0, vi->depth, InputOutput,
3395	vi->visual, flags, &swa);
3396	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3397	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
3398
3399	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3400
3401	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3402	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3403	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3404	#endif
3405
3406	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3407
3408	/* NULL during the first PowerOn call. */
3409	if (pState->ext.glGenFramebuffers)
3410	{
3411	/* Create a framebuffer object for this context. */
3412	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3413	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3414
3415	/* Bind the object to the framebuffer target. */
3416	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3417	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3418
3419	/* Create read and draw framebuffer objects for this context. */
3420	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3421	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3422
3423	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3424	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3425
3426	}
3427	#if 0
3428	/** @todo move to shader lib!!! */
3429	/* Clear the screen */
3430	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3431
3432	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3433	glClearIndex(0);
3434	glClearDepth(1);
3435	glClearStencil(0xffff);
3436	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3437	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3438	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3439	if (pState->ext.glProvokingVertex)
3440	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3441	/** @todo move to shader lib!!! */
3442	#endif
3443	return VINF_SUCCESS;
3444	}
3445
3446
3447	/**
3448	* Create a new 3d context
3449	*
3450	* @returns VBox status code.
3451	* @param pThis VGA device instance data.
3452	* @param cid Context id
3453	*/
3454	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3455	{
3456	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3457	}
3458
3459	/**
3460	* Destroys a 3d context.
3461	*
3462	* @returns VBox status code.
3463	* @param pThis VGA device instance data.
3464	* @param pContext The context to destroy.
3465	* @param cid Context id
3466	*/
3467	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3468	{
3469	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3470	AssertReturn(pState, VERR_NO_MEMORY);
3471	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3472	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3473	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3474
3475	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3476
3477	/* Destroy all leftover pixel shaders. */
3478	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3479	{
3480	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3481	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3482	}
3483	if (pContext->paPixelShader)
3484	RTMemFree(pContext->paPixelShader);
3485
3486	/* Destroy all leftover vertex shaders. */
3487	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3488	{
3489	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3490	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3491	}
3492	if (pContext->paVertexShader)
3493	RTMemFree(pContext->paVertexShader);
3494
3495	if (pContext->state.paVertexShaderConst)
3496	RTMemFree(pContext->state.paVertexShaderConst);
3497	if (pContext->state.paPixelShaderConst)
3498	RTMemFree(pContext->state.paPixelShaderConst);
3499
3500	if (pContext->pShaderContext)
3501	{
3502	int rc = ShaderContextDestroy(pContext->pShaderContext);
3503	AssertRC(rc);
3504	}
3505
3506	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3507	{
3508	/* Unbind the object from the framebuffer target. */
3509	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3510	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3511	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3512	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3513
3514	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3515	{
3516	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3517	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3518	}
3519	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3520	{
3521	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3522	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3523	}
3524	}
3525	#ifdef RT_OS_WINDOWS
3526	wglMakeCurrent(pContext->hdc, NULL);
3527	wglDeleteContext(pContext->hglrc);
3528	ReleaseDC(pContext->hwnd, pContext->hdc);
3529
3530	/* Destroy the window we've created. */
3531	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3532	AssertRC(rc);
3533	#elif defined(RT_OS_DARWIN)
3534	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3535	#elif defined(RT_OS_LINUX)
3536	glXMakeCurrent(pState->display, None, NULL);
3537	glXDestroyContext(pState->display, pContext->glxContext);
3538	XDestroyWindow(pState->display, pContext->window);
3539	#endif
3540
3541	memset(pContext, 0, sizeof(*pContext));
3542	pContext->id = SVGA3D_INVALID_ID;
3543
3544	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3545	return VINF_SUCCESS;
3546	}
3547
3548	/**
3549	* Destroy an existing 3d context
3550	*
3551	* @returns VBox status code.
3552	* @param pThis VGA device instance data.
3553	* @param cid Context id
3554	*/
3555	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3556	{
3557	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3558	AssertReturn(pState, VERR_WRONG_ORDER);
3559
3560	/*
3561	* Resolve the context and hand it to the common worker function.
3562	*/
3563	if ( cid < pState->cContexts
3564	&& pState->papContexts[cid]->id == cid)
3565	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3566
3567	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3568	return VINF_SUCCESS;
3569	}
3570
3571	/**
3572	* Worker for vmsvga3dChangeMode that resizes a context.
3573	*
3574	* @param pThis The VGA device instance data.
3575	* @param pState The VMSVGA3d state.
3576	* @param pContext The context.
3577	*/
3578	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3579	{
3580	#ifdef RT_OS_WINDOWS
3581	/* Resize the window. */
3582	CREATESTRUCT cs;
3583	RT_ZERO(cs);
3584	cs.cx = pThis->svga.uWidth;
3585	cs.cy = pThis->svga.uHeight;
3586	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3587	AssertRC(rc);
3588
3589	#elif defined(RT_OS_DARWIN)
3590	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3591
3592	#elif defined(RT_OS_LINUX)
3593	XWindowChanges wc;
3594	wc.width = pThis->svga.uWidth;
3595	wc.height = pThis->svga.uHeight;
3596	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3597	#endif
3598	}
3599
3600	/* Handle resize */
3601	int vmsvga3dChangeMode(PVGASTATE pThis)
3602	{
3603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3604	AssertReturn(pState, VERR_NO_MEMORY);
3605
3606	/* Resize the shared context too. */
3607	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3608	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3609
3610	/* Resize all active contexts. */
3611	for (uint32_t i = 0; i < pState->cContexts; i++)
3612	{
3613	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3614	if (pContext->id != SVGA3D_INVALID_ID)
3615	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3616	}
3617
3618	return VINF_SUCCESS;
3619	}
3620
3621
3622	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3623	{
3624	PVMSVGA3DCONTEXT pContext;
3625	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3626	AssertReturn(pState, VERR_NO_MEMORY);
3627	bool fModelViewChanged = false;
3628
3629	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3630
3631	if ( cid >= pState->cContexts
3632	\|\| pState->papContexts[cid]->id != cid)
3633	{
3634	Log(("vmsvga3dSetTransform invalid context id!\n"));
3635	return VERR_INVALID_PARAMETER;
3636	}
3637	pContext = pState->papContexts[cid];
3638	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3639
3640	/* Save this matrix for vm state save/restore. */
3641	pContext->state.aTransformState[type].fValid = true;
3642	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3643	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3644
3645	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)));
3646	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)));
3647	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)));
3648	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)));
3649
3650	switch (type)
3651	{
3652	case SVGA3D_TRANSFORM_VIEW:
3653	/* View * World = Model View */
3654	glMatrixMode(GL_MODELVIEW);
3655	glLoadMatrixf(matrix);
3656	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3657	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3659	fModelViewChanged = true;
3660	break;
3661
3662	case SVGA3D_TRANSFORM_PROJECTION:
3663	{
3664	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3665	AssertRCReturn(rc, rc);
3666	break;
3667	}
3668
3669	case SVGA3D_TRANSFORM_TEXTURE0:
3670	glMatrixMode(GL_TEXTURE);
3671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3672	glLoadMatrixf(matrix);
3673	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3674	break;
3675
3676	case SVGA3D_TRANSFORM_TEXTURE1:
3677	case SVGA3D_TRANSFORM_TEXTURE2:
3678	case SVGA3D_TRANSFORM_TEXTURE3:
3679	case SVGA3D_TRANSFORM_TEXTURE4:
3680	case SVGA3D_TRANSFORM_TEXTURE5:
3681	case SVGA3D_TRANSFORM_TEXTURE6:
3682	case SVGA3D_TRANSFORM_TEXTURE7:
3683	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3684	return VERR_INVALID_PARAMETER;
3685
3686	case SVGA3D_TRANSFORM_WORLD:
3687	/* View * World = Model View */
3688	glMatrixMode(GL_MODELVIEW);
3689	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3690	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3691	else
3692	glLoadIdentity();
3693	glMultMatrixf(matrix);
3694	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3695	fModelViewChanged = true;
3696	break;
3697
3698	case SVGA3D_TRANSFORM_WORLD1:
3699	case SVGA3D_TRANSFORM_WORLD2:
3700	case SVGA3D_TRANSFORM_WORLD3:
3701	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3702	return VERR_INVALID_PARAMETER;
3703
3704	default:
3705	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3706	return VERR_INVALID_PARAMETER;
3707	}
3708
3709	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3710	if (fModelViewChanged)
3711	{
3712	/* Reprogram the clip planes. */
3713	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3714	{
3715	if (pContext->state.aClipPlane[j].fValid == true)
3716	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3717	}
3718
3719	/* Reprogram the light data. */
3720	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3721	{
3722	if (pContext->state.aLightData[j].fValidData == true)
3723	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3724	}
3725	}
3726
3727	return VINF_SUCCESS;
3728	}
3729
3730	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3731	{
3732	PVMSVGA3DCONTEXT pContext;
3733	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3734	AssertReturn(pState, VERR_NO_MEMORY);
3735
3736	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3737
3738	if ( cid >= pState->cContexts
3739	\|\| pState->papContexts[cid]->id != cid)
3740	{
3741	Log(("vmsvga3dSetZRange invalid context id!\n"));
3742	return VERR_INVALID_PARAMETER;
3743	}
3744	pContext = pState->papContexts[cid];
3745	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3746
3747	pContext->state.zRange = zRange;
3748	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3749
3750	if (zRange.min < -1.0)
3751	zRange.min = -1.0;
3752	if (zRange.max > 1.0)
3753	zRange.max = 1.0;
3754
3755	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3756	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3757	return VINF_SUCCESS;
3758	}
3759
3760	/**
3761	* Convert SVGA blend op value to its OpenGL equivalent
3762	*/
3763	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3764	{
3765	switch (blendOp)
3766	{
3767	case SVGA3D_BLENDOP_ZERO:
3768	return GL_ZERO;
3769	case SVGA3D_BLENDOP_ONE:
3770	return GL_ONE;
3771	case SVGA3D_BLENDOP_SRCCOLOR:
3772	return GL_SRC_COLOR;
3773	case SVGA3D_BLENDOP_INVSRCCOLOR:
3774	return GL_ONE_MINUS_SRC_COLOR;
3775	case SVGA3D_BLENDOP_SRCALPHA:
3776	return GL_SRC_ALPHA;
3777	case SVGA3D_BLENDOP_INVSRCALPHA:
3778	return GL_ONE_MINUS_SRC_ALPHA;
3779	case SVGA3D_BLENDOP_DESTALPHA:
3780	return GL_DST_ALPHA;
3781	case SVGA3D_BLENDOP_INVDESTALPHA:
3782	return GL_ONE_MINUS_DST_ALPHA;
3783	case SVGA3D_BLENDOP_DESTCOLOR:
3784	return GL_DST_COLOR;
3785	case SVGA3D_BLENDOP_INVDESTCOLOR:
3786	return GL_ONE_MINUS_DST_COLOR;
3787	case SVGA3D_BLENDOP_SRCALPHASAT:
3788	return GL_SRC_ALPHA_SATURATE;
3789	case SVGA3D_BLENDOP_BLENDFACTOR:
3790	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3791	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3792	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3793	default:
3794	AssertFailed();
3795	return GL_ONE;
3796	}
3797	}
3798
3799	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3800	{
3801	switch (blendEq)
3802	{
3803	case SVGA3D_BLENDEQ_ADD:
3804	return GL_FUNC_ADD;
3805	case SVGA3D_BLENDEQ_SUBTRACT:
3806	return GL_FUNC_SUBTRACT;
3807	case SVGA3D_BLENDEQ_REVSUBTRACT:
3808	return GL_FUNC_REVERSE_SUBTRACT;
3809	case SVGA3D_BLENDEQ_MINIMUM:
3810	return GL_MIN;
3811	case SVGA3D_BLENDEQ_MAXIMUM:
3812	return GL_MAX;
3813	default:
3814	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3815	return GL_FUNC_ADD;
3816	}
3817	}
3818
3819	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3820	{
3821	switch (cmpFunc)
3822	{
3823	case SVGA3D_CMP_NEVER:
3824	return GL_NEVER;
3825	case SVGA3D_CMP_LESS:
3826	return GL_LESS;
3827	case SVGA3D_CMP_EQUAL:
3828	return GL_EQUAL;
3829	case SVGA3D_CMP_LESSEQUAL:
3830	return GL_LEQUAL;
3831	case SVGA3D_CMP_GREATER:
3832	return GL_GREATER;
3833	case SVGA3D_CMP_NOTEQUAL:
3834	return GL_NOTEQUAL;
3835	case SVGA3D_CMP_GREATEREQUAL:
3836	return GL_GEQUAL;
3837	case SVGA3D_CMP_ALWAYS:
3838	return GL_ALWAYS;
3839	default:
3840	AssertFailed();
3841	return GL_LESS;
3842	}
3843	}
3844
3845	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3846	{
3847	switch (stencilOp)
3848	{
3849	case SVGA3D_STENCILOP_KEEP:
3850	return GL_KEEP;
3851	case SVGA3D_STENCILOP_ZERO:
3852	return GL_ZERO;
3853	case SVGA3D_STENCILOP_REPLACE:
3854	return GL_REPLACE;
3855	case SVGA3D_STENCILOP_INCRSAT:
3856	return GL_INCR_WRAP;
3857	case SVGA3D_STENCILOP_DECRSAT:
3858	return GL_DECR_WRAP;
3859	case SVGA3D_STENCILOP_INVERT:
3860	return GL_INVERT;
3861	case SVGA3D_STENCILOP_INCR:
3862	return GL_INCR;
3863	case SVGA3D_STENCILOP_DECR:
3864	return GL_DECR;
3865	default:
3866	AssertFailed();
3867	return GL_KEEP;
3868	}
3869	}
3870
3871	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3872	{
3873	uint32_t val;
3874	PVMSVGA3DCONTEXT pContext;
3875	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3876	AssertReturn(pState, VERR_NO_MEMORY);
3877
3878	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3879
3880	if ( cid >= pState->cContexts
3881	\|\| pState->papContexts[cid]->id != cid)
3882	{
3883	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3884	return VERR_INVALID_PARAMETER;
3885	}
3886	pContext = pState->papContexts[cid];
3887	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3888
3889	for (unsigned i = 0; i < cRenderStates; i++)
3890	{
3891	GLenum enableCap = ~0U;
3892	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3893	/* Save the render state for vm state saving. */
3894	if (pRenderState[i].state < SVGA3D_RS_MAX)
3895	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3896
3897	switch (pRenderState[i].state)
3898	{
3899	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3900	enableCap = GL_DEPTH_TEST;
3901	val = pRenderState[i].uintValue;
3902	break;
3903
3904	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3905	glDepthMask(!!pRenderState[i].uintValue);
3906	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3907	break;
3908
3909	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3910	enableCap = GL_ALPHA_TEST;
3911	val = pRenderState[i].uintValue;
3912	break;
3913
3914	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3915	enableCap = GL_DITHER;
3916	val = pRenderState[i].uintValue;
3917	break;
3918
3919	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3920	enableCap = GL_FOG;
3921	val = pRenderState[i].uintValue;
3922	break;
3923
3924	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3925	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3926	break;
3927
3928	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3929	enableCap = GL_LIGHTING;
3930	val = pRenderState[i].uintValue;
3931	break;
3932
3933	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3934	/* not applicable */
3935	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3936	break;
3937
3938	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3939	enableCap = GL_POINT_SPRITE_ARB;
3940	val = pRenderState[i].uintValue;
3941	break;
3942
3943	case SVGA3D_RS_POINTSIZE: /* float */
3944	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3945	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3946	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3947	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3948	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3949
3950	glPointSize(pRenderState[i].floatValue);
3951	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3952	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3953	break;
3954
3955	case SVGA3D_RS_POINTSIZEMIN: /* float */
3956	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3957	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3958	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3959	break;
3960
3961	case SVGA3D_RS_POINTSIZEMAX: /* float */
3962	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3963	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3964	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3965	break;
3966
3967	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3968	case SVGA3D_RS_POINTSCALE_A: /* float */
3969	case SVGA3D_RS_POINTSCALE_B: /* float */
3970	case SVGA3D_RS_POINTSCALE_C: /* float */
3971	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3972	break;
3973
3974	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3975	{
3976	GLfloat color[4]; /* red, green, blue, alpha */
3977
3978	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3979
3980	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3981	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3982	break;
3983	}
3984
3985	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3986	{
3987	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3988	for (uint32_t j = 0; j <= 5; j++)
3989	{
3990	if (pRenderState[i].uintValue & RT_BIT(j))
3991	glEnable(GL_CLIP_PLANE0 + j);
3992	else
3993	glDisable(GL_CLIP_PLANE0 + j);
3994	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3995	}
3996	break;
3997	}
3998
3999	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4000	{
4001	GLfloat color[4]; /* red, green, blue, alpha */
4002
4003	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4004
4005	glFogfv(GL_FOG_COLOR, color);
4006	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4007	break;
4008	}
4009
4010	case SVGA3D_RS_FOGSTART: /* float */
4011	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4012	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4013	break;
4014
4015	case SVGA3D_RS_FOGEND: /* float */
4016	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4017	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4018	break;
4019
4020	case SVGA3D_RS_FOGDENSITY: /* float */
4021	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4022	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4023	break;
4024
4025	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4026	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4028	break;
4029
4030	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4031	{
4032	SVGA3dFogMode mode;
4033	mode.uintValue = pRenderState[i].uintValue;
4034
4035	enableCap = GL_FOG_MODE;
4036	switch (mode.s.function)
4037	{
4038	case SVGA3D_FOGFUNC_EXP:
4039	val = GL_EXP;
4040	break;
4041	case SVGA3D_FOGFUNC_EXP2:
4042	val = GL_EXP2;
4043	break;
4044	case SVGA3D_FOGFUNC_LINEAR:
4045	val = GL_LINEAR;
4046	break;
4047	default:
4048	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4049	break;
4050	}
4051
4052	/** @todo how to switch between vertex and pixel fog modes??? */
4053	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4054	#if 0
4055	/* The fog type determines the render state. */
4056	switch (mode.s.type)
4057	{
4058	case SVGA3D_FOGTYPE_VERTEX:
4059	renderState = D3DRS_FOGVERTEXMODE;
4060	break;
4061	case SVGA3D_FOGTYPE_PIXEL:
4062	renderState = D3DRS_FOGTABLEMODE;
4063	break;
4064	default:
4065	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4066	break;
4067	}
4068	#endif
4069
4070	/* Set the fog base to depth or range. */
4071	switch (mode.s.base)
4072	{
4073	case SVGA3D_FOGBASE_DEPTHBASED:
4074	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4076	break;
4077	case SVGA3D_FOGBASE_RANGEBASED:
4078	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4079	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4080	break;
4081	default:
4082	/* ignore */
4083	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4084	break;
4085	}
4086	break;
4087	}
4088
4089	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4090	{
4091	SVGA3dFillMode mode;
4092
4093	mode.uintValue = pRenderState[i].uintValue;
4094
4095	switch (mode.s.mode)
4096	{
4097	case SVGA3D_FILLMODE_POINT:
4098	val = GL_POINT;
4099	break;
4100	case SVGA3D_FILLMODE_LINE:
4101	val = GL_LINE;
4102	break;
4103	case SVGA3D_FILLMODE_FILL:
4104	val = GL_FILL;
4105	break;
4106	default:
4107	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4108	break;
4109	}
4110	/* @note only front and back faces */
4111	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4112	glPolygonMode(GL_FRONT_AND_BACK, val);
4113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4114	break;
4115	}
4116
4117	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4118	switch (pRenderState[i].uintValue)
4119	{
4120	case SVGA3D_SHADEMODE_FLAT:
4121	val = GL_FLAT;
4122	break;
4123
4124	case SVGA3D_SHADEMODE_SMOOTH:
4125	val = GL_SMOOTH;
4126	break;
4127
4128	default:
4129	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4130	break;
4131	}
4132
4133	glShadeModel(val);
4134	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4135	break;
4136
4137	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4138	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4139	/** @todo */
4140	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4141	/*
4142	renderState = D3DRS_LINEPATTERN;
4143	val = pRenderState[i].uintValue;
4144	*/
4145	break;
4146
4147	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4148	enableCap = GL_LINE_SMOOTH;
4149	val = pRenderState[i].uintValue;
4150	break;
4151
4152	case SVGA3D_RS_LINEWIDTH: /* float */
4153	glLineWidth(pRenderState[i].floatValue);
4154	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4155	break;
4156
4157	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4158	{
4159	/* Refresh the blending state based on the new enable setting. */
4160	SVGA3dRenderState renderstate[2];
4161
4162	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4163	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4164	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4165	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4166
4167	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4168	AssertRCReturn(rc, rc);
4169
4170	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4171	continue; /* ignore if blend is already enabled */
4172	/* no break */
4173	}
4174
4175	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4176	enableCap = GL_BLEND;
4177	val = pRenderState[i].uintValue;
4178	break;
4179
4180	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4181	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4182	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4183	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4184	{
4185	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4186	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4187
4188	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4190	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4191	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4192	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4194	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4195	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4196
4197	switch (pRenderState[i].state)
4198	{
4199	case SVGA3D_RS_SRCBLEND:
4200	srcRGB = blendop;
4201	break;
4202	case SVGA3D_RS_DSTBLEND:
4203	dstRGB = blendop;
4204	break;
4205	case SVGA3D_RS_SRCBLENDALPHA:
4206	srcAlpha = blendop;
4207	break;
4208	case SVGA3D_RS_DSTBLENDALPHA:
4209	dstAlpha = blendop;
4210	break;
4211	default:
4212	/* not possible; shut up gcc */
4213	AssertFailed();
4214	break;
4215	}
4216
4217	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4218	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4219	else
4220	glBlendFunc(srcRGB, dstRGB);
4221	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4222	break;
4223	}
4224
4225	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4226	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4227	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4228	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4229	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4230	else
4231	{
4232	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4233	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4234	#else
4235	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4236	#endif
4237	}
4238	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4239	break;
4240
4241	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4242	{
4243	GLfloat red, green, blue, alpha;
4244
4245	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4246
4247	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4248	glBlendColor(red, green, blue, alpha);
4249	#else
4250	pState->ext.glBlendColor(red, green, blue, alpha);
4251	#endif
4252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4253	break;
4254	}
4255
4256	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4257	{
4258	GLenum mode = GL_BACK; /* default for OpenGL */
4259
4260	switch (pRenderState[i].uintValue)
4261	{
4262	case SVGA3D_FACE_NONE:
4263	break;
4264	case SVGA3D_FACE_FRONT:
4265	mode = GL_FRONT;
4266	break;
4267	case SVGA3D_FACE_BACK:
4268	mode = GL_BACK;
4269	break;
4270	case SVGA3D_FACE_FRONT_BACK:
4271	mode = GL_FRONT_AND_BACK;
4272	break;
4273	default:
4274	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4275	break;
4276	}
4277	enableCap = GL_CULL_FACE;
4278	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4279	{
4280	glCullFace(mode);
4281	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4282	val = 1;
4283	}
4284	else
4285	val = 0;
4286	break;
4287	}
4288
4289	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4290	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4291	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4292	break;
4293
4294	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4295	{
4296	GLclampf ref;
4297
4298	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4299	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4300	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4301	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4302	break;
4303	}
4304
4305	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4306	{
4307	GLint func;
4308
4309	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4310	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4311	glAlphaFunc(func, pRenderState[i].floatValue);
4312	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4313	break;
4314	}
4315
4316	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4317	enableCap = GL_STENCIL_TEST;
4318	val = pRenderState[i].uintValue;
4319	break;
4320
4321	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4322	case SVGA3D_RS_STENCILREF: /* uint32_t */
4323	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4324	{
4325	GLint func, ref;
4326	GLuint mask;
4327
4328	glGetIntegerv(GL_STENCIL_FUNC, &func);
4329	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4330	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4331	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4332	glGetIntegerv(GL_STENCIL_REF, &ref);
4333	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4334
4335	switch (pRenderState[i].state)
4336	{
4337	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4338	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4339	break;
4340
4341	case SVGA3D_RS_STENCILREF: /* uint32_t */
4342	ref = pRenderState[i].uintValue;
4343	break;
4344
4345	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4346	mask = pRenderState[i].uintValue;
4347	break;
4348
4349	default:
4350	/* not possible; shut up gcc */
4351	AssertFailed();
4352	break;
4353	}
4354
4355	glStencilFunc(func, ref, mask);
4356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4357	break;
4358	}
4359
4360	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4361	glStencilMask(pRenderState[i].uintValue);
4362	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4363	break;
4364
4365	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4366	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4367	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4368	{
4369	GLint sfail, dpfail, dppass;
4370	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4371
4372	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4373	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4374	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4375	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4376	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4377	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4378
4379	switch (pRenderState[i].state)
4380	{
4381	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4382	sfail = stencilop;
4383	break;
4384	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4385	dpfail = stencilop;
4386	break;
4387	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4388	dppass = stencilop;
4389	break;
4390	default:
4391	/* not possible; shut up gcc */
4392	AssertFailed();
4393	break;
4394	}
4395	glStencilOp(sfail, dpfail, dppass);
4396	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4397	break;
4398	}
4399
4400	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4401	/* @note GL_EXT_stencil_two_side required! */
4402	if (pState->ext.fEXT_stencil_two_side)
4403	{
4404	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4405	val = pRenderState[i].uintValue;
4406	}
4407	else
4408	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4409	break;
4410
4411	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4412	{
4413	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4414	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4415	*/
4416	GLint ref;
4417	GLuint mask;
4418
4419	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4420	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4421	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4422	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4423
4424	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4425	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4426	break;
4427	}
4428
4429	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4430	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4431	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4432	{
4433	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4434	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4435	*/
4436	GLint sfail, dpfail, dppass;
4437	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4438
4439	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4440	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4441	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4442	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4443	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4444	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4445
4446	switch (pRenderState[i].state)
4447	{
4448	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4449	sfail = stencilop;
4450	break;
4451	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4452	dpfail = stencilop;
4453	break;
4454	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4455	dppass = stencilop;
4456	break;
4457	default:
4458	/* not possible; shut up gcc */
4459	AssertFailed();
4460	break;
4461	}
4462	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4463	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4464	break;
4465	}
4466
4467	case SVGA3D_RS_ZBIAS: /* float */
4468	/** @todo unknown meaning; depth bias is not identical
4469	renderState = D3DRS_DEPTHBIAS;
4470	val = pRenderState[i].uintValue;
4471	*/
4472	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4473	break;
4474
4475	case SVGA3D_RS_DEPTHBIAS: /* float */
4476	{
4477	GLfloat factor;
4478
4479	/** @todo not sure if the d3d & ogl definitions are identical. */
4480
4481	/* Do not change the factor part. */
4482	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4483	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4484
4485	glPolygonOffset(factor, pRenderState[i].floatValue);
4486	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4487	break;
4488	}
4489
4490	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4491	{
4492	GLfloat units;
4493
4494	/** @todo not sure if the d3d & ogl definitions are identical. */
4495
4496	/* Do not change the factor part. */
4497	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4498	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4499
4500	glPolygonOffset(pRenderState[i].floatValue, units);
4501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4502	break;
4503	}
4504
4505	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4506	{
4507	GLboolean red, green, blue, alpha;
4508	SVGA3dColorMask mask;
4509
4510	mask.uintValue = pRenderState[i].uintValue;
4511
4512	red = mask.s.red;
4513	green = mask.s.green;
4514	blue = mask.s.blue;
4515	alpha = mask.s.alpha;
4516
4517	glColorMask(red, green, blue, alpha);
4518	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4519	break;
4520	}
4521
4522	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4523	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4524	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4525	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4526	break;
4527
4528	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4529	enableCap = GL_SCISSOR_TEST;
4530	val = pRenderState[i].uintValue;
4531	break;
4532
4533	#if 0
4534	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4535	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4536	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4537	val = pRenderState[i].uintValue;
4538	break;
4539
4540	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4541	renderState = D3DRS_SPECULARMATERIALSOURCE;
4542	val = pRenderState[i].uintValue;
4543	break;
4544
4545	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4546	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4547	val = pRenderState[i].uintValue;
4548	break;
4549
4550	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4551	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4552	val = pRenderState[i].uintValue;
4553	break;
4554	#endif
4555
4556	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4557	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4558	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4559	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4560	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4561	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4562	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4563	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4564	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4565	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4566	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4567	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4568	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4569	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4570	break;
4571
4572	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4573	case SVGA3D_RS_TWEENFACTOR: /* float */
4574	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4575	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4576	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4577	break;
4578
4579	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4580	enableCap = GL_MULTISAMPLE;
4581	val = pRenderState[i].uintValue;
4582	break;
4583
4584	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4585	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4586	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4587	break;
4588
4589	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4590	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4591	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4592	/*
4593	renderState = D3DRS_COORDINATETYPE;
4594	val = pRenderState[i].uintValue;
4595	*/
4596	break;
4597
4598	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4599	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4600	/* Invert the selected mode because of y-inversion (?) */
4601	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4602	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4603	break;
4604
4605	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4606	//AssertFailed();
4607	/*
4608	D3DRS_SRGBWRITEENABLE ??
4609	renderState = D3DRS_OUTPUTGAMMA;
4610	val = pRenderState[i].uintValue;
4611	*/
4612	break;
4613
4614	#if 0
4615
4616	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4617	//AssertFailed();
4618	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4619	val = pRenderState[i].uintValue;
4620	break;
4621
4622	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4623	renderState = D3DRS_TEXTUREFACTOR;
4624	val = pRenderState[i].uintValue;
4625	break;
4626
4627	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4628	renderState = D3DRS_LOCALVIEWER;
4629	val = pRenderState[i].uintValue;
4630	break;
4631
4632	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4633	AssertFailed();
4634	/*
4635	renderState = D3DRS_ZVISIBLE;
4636	val = pRenderState[i].uintValue;
4637	*/
4638	break;
4639
4640	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4641	renderState = D3DRS_CLIPPING;
4642	val = pRenderState[i].uintValue;
4643	break;
4644
4645	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4646	glTexParameter GL_TEXTURE_WRAP_S
4647	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4648	renderState = D3DRS_WRAP0;
4649	val = pRenderState[i].uintValue;
4650	break;
4651
4652	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4653	glTexParameter GL_TEXTURE_WRAP_T
4654	renderState = D3DRS_WRAP1;
4655	val = pRenderState[i].uintValue;
4656	break;
4657
4658	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4659	glTexParameter GL_TEXTURE_WRAP_R
4660	renderState = D3DRS_WRAP2;
4661	val = pRenderState[i].uintValue;
4662	break;
4663
4664
4665	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4666	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4667	val = pRenderState[i].uintValue;
4668	break;
4669
4670
4671	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4672	renderState = D3DRS_BLENDOPALPHA;
4673	val = pRenderState[i].uintValue;
4674	break;
4675
4676	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4677	AssertFailed();
4678	/*
4679	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4680	val = pRenderState[i].uintValue;
4681	*/
4682	break;
4683
4684	#endif
4685	default:
4686	AssertFailed();
4687	break;
4688	}
4689
4690	if (enableCap != ~0U)
4691	{
4692	if (val)
4693	glEnable(enableCap);
4694	else
4695	glDisable(enableCap);
4696	}
4697	}
4698
4699	return VINF_SUCCESS;
4700	}
4701
4702	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4703	{
4704	PVMSVGA3DCONTEXT pContext;
4705	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4706	PVMSVGA3DSURFACE pRenderTarget;
4707
4708	AssertReturn(pState, VERR_NO_MEMORY);
4709	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4710	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4711
4712	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4713
4714	if ( cid >= pState->cContexts
4715	\|\| pState->papContexts[cid]->id != cid)
4716	{
4717	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4718	return VERR_INVALID_PARAMETER;
4719	}
4720	pContext = pState->papContexts[cid];
4721	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4722
4723	/* Save for vm state save/restore. */
4724	pContext->state.aRenderTargets[type] = target.sid;
4725
4726	if (target.sid == SVGA3D_INVALID_ID)
4727	{
4728	/* Disable render target. */
4729	switch (type)
4730	{
4731	case SVGA3D_RT_DEPTH:
4732	case SVGA3D_RT_STENCIL:
4733	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4734	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4735	break;
4736
4737	case SVGA3D_RT_COLOR0:
4738	case SVGA3D_RT_COLOR1:
4739	case SVGA3D_RT_COLOR2:
4740	case SVGA3D_RT_COLOR3:
4741	case SVGA3D_RT_COLOR4:
4742	case SVGA3D_RT_COLOR5:
4743	case SVGA3D_RT_COLOR6:
4744	case SVGA3D_RT_COLOR7:
4745	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4746	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4747	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4748	break;
4749
4750	default:
4751	AssertFailedReturn(VERR_INVALID_PARAMETER);
4752	}
4753	return VINF_SUCCESS;
4754	}
4755
4756	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4757	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4758	pRenderTarget = pState->papSurfaces[target.sid];
4759
4760	switch (type)
4761	{
4762	case SVGA3D_RT_DEPTH:
4763	case SVGA3D_RT_STENCIL:
4764	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4765	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4766	{
4767	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
4768	pContext = &pState->SharedCtx;
4769	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4770
4771	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4772	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4773
4774	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4775	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4776
4777	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4778	pRenderTarget->internalFormatGL,
4779	pRenderTarget->pMipmapLevels[0].size.width,
4780	pRenderTarget->pMipmapLevels[0].size.height);
4781	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4782
4783	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4785
4786	pContext = pState->papContexts[cid];
4787	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4788	pRenderTarget->idWeakContextAssociation = cid;
4789	}
4790
4791	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4792	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4793	Assert(!pRenderTarget->fDirty);
4794	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4795
4796	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4797
4798	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4799	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4800	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4801	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4802	break;
4803
4804	case SVGA3D_RT_COLOR0:
4805	case SVGA3D_RT_COLOR1:
4806	case SVGA3D_RT_COLOR2:
4807	case SVGA3D_RT_COLOR3:
4808	case SVGA3D_RT_COLOR4:
4809	case SVGA3D_RT_COLOR5:
4810	case SVGA3D_RT_COLOR6:
4811	case SVGA3D_RT_COLOR7:
4812	{
4813	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4814	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4815	{
4816	Log(("vmsvga3dSetRenderTarget: create texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n", target.sid, pRenderTarget->flags, pRenderTarget->format));
4817	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4818	AssertRCReturn(rc, rc);
4819	}
4820
4821	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4822	Assert(!pRenderTarget->fDirty);
4823
4824	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4825
4826	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4827	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4828
4829	pContext->sidRenderTarget = target.sid;
4830
4831	#ifdef DEBUG
4832	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4833	if (status != GL_FRAMEBUFFER_COMPLETE)
4834	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4835	#endif
4836	/** @todo use glDrawBuffers too? */
4837	break;
4838	}
4839
4840	default:
4841	AssertFailedReturn(VERR_INVALID_PARAMETER);
4842	}
4843
4844	return VINF_SUCCESS;
4845	}
4846
4847	#if 0
4848	/**
4849	* Convert SVGA texture combiner value to its D3D equivalent
4850	*/
4851	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4852	{
4853	switch (value)
4854	{
4855	case SVGA3D_TC_DISABLE:
4856	return D3DTOP_DISABLE;
4857	case SVGA3D_TC_SELECTARG1:
4858	return D3DTOP_SELECTARG1;
4859	case SVGA3D_TC_SELECTARG2:
4860	return D3DTOP_SELECTARG2;
4861	case SVGA3D_TC_MODULATE:
4862	return D3DTOP_MODULATE;
4863	case SVGA3D_TC_ADD:
4864	return D3DTOP_ADD;
4865	case SVGA3D_TC_ADDSIGNED:
4866	return D3DTOP_ADDSIGNED;
4867	case SVGA3D_TC_SUBTRACT:
4868	return D3DTOP_SUBTRACT;
4869	case SVGA3D_TC_BLENDTEXTUREALPHA:
4870	return D3DTOP_BLENDTEXTUREALPHA;
4871	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4872	return D3DTOP_BLENDDIFFUSEALPHA;
4873	case SVGA3D_TC_BLENDCURRENTALPHA:
4874	return D3DTOP_BLENDCURRENTALPHA;
4875	case SVGA3D_TC_BLENDFACTORALPHA:
4876	return D3DTOP_BLENDFACTORALPHA;
4877	case SVGA3D_TC_MODULATE2X:
4878	return D3DTOP_MODULATE2X;
4879	case SVGA3D_TC_MODULATE4X:
4880	return D3DTOP_MODULATE4X;
4881	case SVGA3D_TC_DSDT:
4882	AssertFailed(); /** @todo ??? */
4883	return D3DTOP_DISABLE;
4884	case SVGA3D_TC_DOTPRODUCT3:
4885	return D3DTOP_DOTPRODUCT3;
4886	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4887	return D3DTOP_BLENDTEXTUREALPHAPM;
4888	case SVGA3D_TC_ADDSIGNED2X:
4889	return D3DTOP_ADDSIGNED2X;
4890	case SVGA3D_TC_ADDSMOOTH:
4891	return D3DTOP_ADDSMOOTH;
4892	case SVGA3D_TC_PREMODULATE:
4893	return D3DTOP_PREMODULATE;
4894	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4895	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4896	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4897	return D3DTOP_MODULATECOLOR_ADDALPHA;
4898	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4899	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4900	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4901	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4902	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4903	return D3DTOP_BUMPENVMAPLUMINANCE;
4904	case SVGA3D_TC_MULTIPLYADD:
4905	return D3DTOP_MULTIPLYADD;
4906	case SVGA3D_TC_LERP:
4907	return D3DTOP_LERP;
4908	default:
4909	AssertFailed();
4910	return D3DTOP_DISABLE;
4911	}
4912	}
4913
4914	/**
4915	* Convert SVGA texture arg data value to its D3D equivalent
4916	*/
4917	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4918	{
4919	switch (value)
4920	{
4921	case SVGA3D_TA_CONSTANT:
4922	return D3DTA_CONSTANT;
4923	case SVGA3D_TA_PREVIOUS:
4924	return D3DTA_CURRENT; /* current = previous */
4925	case SVGA3D_TA_DIFFUSE:
4926	return D3DTA_DIFFUSE;
4927	case SVGA3D_TA_TEXTURE:
4928	return D3DTA_TEXTURE;
4929	case SVGA3D_TA_SPECULAR:
4930	return D3DTA_SPECULAR;
4931	default:
4932	AssertFailed();
4933	return 0;
4934	}
4935	}
4936
4937	/**
4938	* Convert SVGA texture transform flag value to its D3D equivalent
4939	*/
4940	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4941	{
4942	switch (value)
4943	{
4944	case SVGA3D_TEX_TRANSFORM_OFF:
4945	return D3DTTFF_DISABLE;
4946	case SVGA3D_TEX_TRANSFORM_S:
4947	return D3DTTFF_COUNT1; /** @todo correct? */
4948	case SVGA3D_TEX_TRANSFORM_T:
4949	return D3DTTFF_COUNT2; /** @todo correct? */
4950	case SVGA3D_TEX_TRANSFORM_R:
4951	return D3DTTFF_COUNT3; /** @todo correct? */
4952	case SVGA3D_TEX_TRANSFORM_Q:
4953	return D3DTTFF_COUNT4; /** @todo correct? */
4954	case SVGA3D_TEX_PROJECTED:
4955	return D3DTTFF_PROJECTED;
4956	default:
4957	AssertFailed();
4958	return 0;
4959	}
4960	}
4961	#endif
4962
4963	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4964	{
4965	switch (value)
4966	{
4967	case SVGA3D_TEX_ADDRESS_WRAP:
4968	return GL_REPEAT;
4969	case SVGA3D_TEX_ADDRESS_MIRROR:
4970	return GL_MIRRORED_REPEAT;
4971	case SVGA3D_TEX_ADDRESS_CLAMP:
4972	return GL_CLAMP_TO_EDGE;
4973	case SVGA3D_TEX_ADDRESS_BORDER:
4974	return GL_CLAMP_TO_BORDER;
4975	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4976	AssertFailed();
4977	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4978
4979	case SVGA3D_TEX_ADDRESS_EDGE:
4980	case SVGA3D_TEX_ADDRESS_INVALID:
4981	default:
4982	AssertFailed();
4983	return GL_REPEAT; /* default */
4984	}
4985	}
4986
4987	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4988	{
4989	switch (value)
4990	{
4991	case SVGA3D_TEX_FILTER_NONE:
4992	case SVGA3D_TEX_FILTER_LINEAR:
4993	return GL_LINEAR;
4994	case SVGA3D_TEX_FILTER_NEAREST:
4995	return GL_NEAREST;
4996	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4997	/** @todo */
4998	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4999	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5000	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5001	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5002	default:
5003	AssertFailed();
5004	return GL_LINEAR; /* default */
5005	}
5006	}
5007
5008	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5009	{
5010	/* flip the red and blue bytes */
5011	uint8_t blue = value & 0xff;
5012	uint8_t red = (value >> 16) & 0xff;
5013	return (value & 0xff00ff00) \| red \| (blue << 16);
5014	}
5015
5016	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5017	{
5018	GLenum val;
5019	GLenum currentStage = ~0L;
5020	PVMSVGA3DCONTEXT pContext;
5021	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5022	AssertReturn(pState, VERR_NO_MEMORY);
5023
5024	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5025
5026	if ( cid >= pState->cContexts
5027	\|\| pState->papContexts[cid]->id != cid)
5028	{
5029	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5030	return VERR_INVALID_PARAMETER;
5031	}
5032	pContext = pState->papContexts[cid];
5033	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5034
5035	for (unsigned i = 0; i < cTextureStates; i++)
5036	{
5037	GLenum textureType = ~0U;
5038	GLenum samplerType = ~0U;
5039
5040	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));
5041	/* Record the texture state for vm state saving. */
5042	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5043	&& pTextureState[i].name < SVGA3D_TS_MAX)
5044	{
5045	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5046	}
5047
5048	/* Active the right texture unit for subsequent texture state changes. */
5049	if (pTextureState[i].stage != currentStage \|\| i == 0)
5050	{
5051	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5052	* size of aSidActiveTexture and for binding/unbinding we cannot exceed it. */
5053	if (pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE)
5054	{
5055	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5056	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5057	currentStage = pTextureState[i].stage;
5058	}
5059	else
5060	{
5061	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5062	continue;
5063	}
5064	}
5065
5066	switch (pTextureState[i].name)
5067	{
5068	case SVGA3D_TS_BUMPENVMAT00: /* float */
5069	case SVGA3D_TS_BUMPENVMAT01: /* float */
5070	case SVGA3D_TS_BUMPENVMAT10: /* float */
5071	case SVGA3D_TS_BUMPENVMAT11: /* float */
5072	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5073	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5074	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5075	break;
5076
5077	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5078	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5079	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5080	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5081	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5082	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5083	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5084	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5085	/** @todo not used by MesaGL */
5086	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5087	break;
5088	#if 0
5089
5090	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5091	textureType = D3DTSS_TEXCOORDINDEX;
5092	val = pTextureState[i].value;
5093	break;
5094
5095	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5096	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5097	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5098	break;
5099	#endif
5100
5101	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5102	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5103	{
5104	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5105	currentStage, pTextureState[i].value, pContext->aSidActiveTexture[currentStage]));
5106
5107	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5108	/* Unselect the currently associated texture. */
5109	glBindTexture(GL_TEXTURE_2D, 0);
5110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5111	/* Necessary for the fixed pipeline. */
5112	glDisable(GL_TEXTURE_2D);
5113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5114	}
5115	else
5116	{
5117	uint32_t sid = pTextureState[i].value;
5118
5119	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5120	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5121
5122	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5123
5124	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5125	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width,
5126	pSurface->pMipmapLevels[0].size.height, pContext->aSidActiveTexture[currentStage]));
5127
5128	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5129	{
5130	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5131	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5132	AssertRCReturn(rc, rc);
5133	}
5134
5135	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5137
5138	/* Necessary for the fixed pipeline. */
5139	glEnable(GL_TEXTURE_2D);
5140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5141
5142	if (pContext->aSidActiveTexture[currentStage] != sid)
5143	{
5144	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5145	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5146	{
5147	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5148	{
5149	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5150
5151	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5152	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5153	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5154	}
5155	}
5156	}
5157	pContext->aSidActiveTexture[currentStage] = sid;
5158	}
5159	/* Finished; continue with the next one. */
5160	continue;
5161
5162	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5163	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5164	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5165	break;
5166
5167	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5168	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5169	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5170	break;
5171
5172	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5173	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5174	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5175	break;
5176
5177	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5178	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5179	{
5180	uint32_t mipFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MIPFILTER].value;
5181	uint32_t minFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MINFILTER].value;
5182
5183	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5184	textureType = GL_TEXTURE_MIN_FILTER;
5185	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5186	{
5187	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5188	{
5189	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5190	val = GL_NEAREST_MIPMAP_LINEAR;
5191	else
5192	val = GL_NEAREST_MIPMAP_NEAREST;
5193	}
5194	else
5195	{
5196	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5197	val = GL_LINEAR_MIPMAP_LINEAR;
5198	else
5199	val = GL_LINEAR_MIPMAP_NEAREST;
5200	}
5201	}
5202	else
5203	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5204	break;
5205	}
5206
5207	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5208	textureType = GL_TEXTURE_MAG_FILTER;
5209	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5210	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5211	break;
5212
5213	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5214	{
5215	GLfloat color[4]; /* red, green, blue, alpha */
5216
5217	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5218
5219	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5221	break;
5222	}
5223
5224	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5225	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5227	break;
5228
5229	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5230	textureType = GL_TEXTURE_BASE_LEVEL;
5231	val = pTextureState[i].value;
5232	break;
5233
5234	#if 0
5235	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5236	samplerType = D3DSAMP_MAXANISOTROPY;
5237	val = pTextureState[i].value; /* Identical?? */
5238	break;
5239
5240	case SVGA3D_TS_GAMMA: /* float */
5241	samplerType = D3DSAMP_SRGBTEXTURE;
5242	/* Boolean in D3D */
5243	if (pTextureState[i].floatValue == 1.0f)
5244	val = FALSE;
5245	else
5246	val = TRUE;
5247	break;
5248	#endif
5249	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5250	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5251	AssertFailed();
5252	break;
5253
5254	default:
5255	//AssertFailed();
5256	break;
5257	}
5258
5259	if (textureType != ~0U)
5260	{
5261	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5262	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5263	}
5264	}
5265
5266	return VINF_SUCCESS;
5267	}
5268
5269	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5270	{
5271	PVMSVGA3DCONTEXT pContext;
5272	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5273	AssertReturn(pState, VERR_NO_MEMORY);
5274	GLenum oglFace;
5275
5276	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5277
5278	if ( cid >= pState->cContexts
5279	\|\| pState->papContexts[cid]->id != cid)
5280	{
5281	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5282	return VERR_INVALID_PARAMETER;
5283	}
5284	pContext = pState->papContexts[cid];
5285	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5286
5287	switch (face)
5288	{
5289	case SVGA3D_FACE_NONE:
5290	case SVGA3D_FACE_FRONT:
5291	oglFace = GL_FRONT;
5292	break;
5293
5294	case SVGA3D_FACE_BACK:
5295	oglFace = GL_BACK;
5296	break;
5297
5298	case SVGA3D_FACE_FRONT_BACK:
5299	oglFace = GL_FRONT_AND_BACK;
5300	break;
5301
5302	default:
5303	AssertFailedReturn(VERR_INVALID_PARAMETER);
5304	}
5305
5306	/* Save for vm state save/restore. */
5307	pContext->state.aMaterial[face].fValid = true;
5308	pContext->state.aMaterial[face].material = *pMaterial;
5309	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5310
5311	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5312	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5313	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5314	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5315	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5316	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5317
5318	return VINF_SUCCESS;
5319	}
5320
5321	/** @todo Move into separate library as we are using logic from Wine here. */
5322	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5323	{
5324	PVMSVGA3DCONTEXT pContext;
5325	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5326	AssertReturn(pState, VERR_NO_MEMORY);
5327	float QuadAttenuation;
5328
5329	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5330
5331	if ( cid >= pState->cContexts
5332	\|\| pState->papContexts[cid]->id != cid)
5333	{
5334	Log(("vmsvga3dSetLightData invalid context id!\n"));
5335	return VERR_INVALID_PARAMETER;
5336	}
5337	pContext = pState->papContexts[cid];
5338	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5339
5340	/* Store for vm state save/restore */
5341	if (index < SVGA3D_MAX_LIGHTS)
5342	{
5343	pContext->state.aLightData[index].fValidData = true;
5344	pContext->state.aLightData[index].data = *pData;
5345	}
5346	else
5347	AssertFailed();
5348
5349	if ( pData->attenuation0 < 0.0f
5350	\|\| pData->attenuation1 < 0.0f
5351	\|\| pData->attenuation2 < 0.0f)
5352	{
5353	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5354	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5355	}
5356
5357	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5358	glMatrixMode(GL_MODELVIEW);
5359	glPushMatrix();
5360	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5361
5362	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5363	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5364	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5365
5366	if (pData->range * pData->range >= FLT_MIN)
5367	QuadAttenuation = 1.4f / (pData->range * pData->range);
5368	else
5369	QuadAttenuation = 0.0f;
5370
5371	switch (pData->type)
5372	{
5373	case SVGA3D_LIGHTTYPE_POINT:
5374	{
5375	GLfloat position[4];
5376
5377	position[0] = pData->position[0];
5378	position[1] = pData->position[1];
5379	position[2] = pData->position[2];
5380	position[3] = 1.0f;
5381
5382	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5383	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5384
5385	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5386	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5387
5388	/* Attenuation - Are these right? guessing... */
5389	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5390	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5391
5392	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5393	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5394
5395	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5396	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5397
5398	/** @todo range */
5399	break;
5400	}
5401
5402	case SVGA3D_LIGHTTYPE_SPOT1:
5403	{
5404	GLfloat exponent;
5405	GLfloat position[4];
5406	const GLfloat pi = 4.0f * atanf(1.0f);
5407
5408	position[0] = pData->position[0];
5409	position[1] = pData->position[1];
5410	position[2] = pData->position[2];
5411	position[3] = 1.0f;
5412
5413	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5414	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5415
5416	position[0] = pData->direction[0];
5417	position[1] = pData->direction[1];
5418	position[2] = pData->direction[2];
5419	position[3] = 1.0f;
5420
5421	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5422	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5423
5424	/*
5425	* opengl-ish and d3d-ish spot lights use too different models for the
5426	* light "intensity" as a function of the angle towards the main light direction,
5427	* so we only can approximate very roughly.
5428	* however spot lights are rather rarely used in games (if ever used at all).
5429	* furthermore if still used, probably nobody pays attention to such details.
5430	*/
5431	if (pData->falloff == 0)
5432	{
5433	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5434	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5435	* will always be 1.0 for both of them, and we don't have to care for the
5436	* rest of the rather complex calculation
5437	*/
5438	exponent = 0.0f;
5439	}
5440	else
5441	{
5442	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5443	if (rho < 0.0001f)
5444	rho = 0.0001f;
5445	exponent = -0.3f/log(cos(rho/2));
5446	}
5447	if (exponent > 128.0f)
5448	exponent = 128.0f;
5449
5450	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5451	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5452
5453	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5454	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5455
5456	/* Attenuation - Are these right? guessing... */
5457	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5458	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5459
5460	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5461	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5462
5463	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5464	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5465
5466	/** @todo range */
5467	break;
5468	}
5469
5470	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5471	{
5472	GLfloat position[4];
5473
5474	position[0] = -pData->direction[0];
5475	position[1] = -pData->direction[1];
5476	position[2] = -pData->direction[2];
5477	position[3] = 0.0f;
5478
5479	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5480	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5481
5482	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5483	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5484
5485	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5486	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5487	break;
5488	}
5489
5490	case SVGA3D_LIGHTTYPE_SPOT2:
5491	default:
5492	Log(("Unsupported light type!!\n"));
5493	return VERR_INVALID_PARAMETER;
5494	}
5495
5496	/* Restore the modelview matrix */
5497	glPopMatrix();
5498
5499	return VINF_SUCCESS;
5500	}
5501
5502	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5503	{
5504	PVMSVGA3DCONTEXT pContext;
5505	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5506	AssertReturn(pState, VERR_NO_MEMORY);
5507
5508	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5509
5510	if ( cid >= pState->cContexts
5511	\|\| pState->papContexts[cid]->id != cid)
5512	{
5513	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5514	return VERR_INVALID_PARAMETER;
5515	}
5516	pContext = pState->papContexts[cid];
5517	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5518
5519	/* Store for vm state save/restore */
5520	if (index < SVGA3D_MAX_LIGHTS)
5521	pContext->state.aLightData[index].fEnabled = !!enabled;
5522	else
5523	AssertFailed();
5524
5525	if (enabled)
5526	{
5527	/* Load the default settings if none have been set yet. */
5528	if (!pContext->state.aLightData[index].fValidData)
5529	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5530	glEnable(GL_LIGHT0 + index);
5531	}
5532	else
5533	glDisable(GL_LIGHT0 + index);
5534
5535	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5536	return VINF_SUCCESS;
5537	}
5538
5539	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5540	{
5541	PVMSVGA3DCONTEXT pContext;
5542	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5543	AssertReturn(pState, VERR_NO_MEMORY);
5544
5545	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5546
5547	if ( cid >= pState->cContexts
5548	\|\| pState->papContexts[cid]->id != cid)
5549	{
5550	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5551	return VERR_INVALID_PARAMETER;
5552	}
5553	pContext = pState->papContexts[cid];
5554	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5555
5556	/* Save for vm state save/restore. */
5557	pContext->state.RectViewPort = *pRect;
5558	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5559
5560	/** @todo y-inversion for partial viewport coordinates? */
5561	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5562	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5563
5564	/* Reset the projection matrix as that relies on the viewport setting. */
5565	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5566	{
5567	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5568	}
5569	else
5570	{
5571	float matrix[16];
5572
5573	/* identity matrix if no matrix set. */
5574	memset(matrix, 0, sizeof(matrix));
5575	matrix[0] = 1.0;
5576	matrix[5] = 1.0;
5577	matrix[10] = 1.0;
5578	matrix[15] = 1.0;
5579	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5580	}
5581
5582	return VINF_SUCCESS;
5583	}
5584
5585	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5586	{
5587	PVMSVGA3DCONTEXT pContext;
5588	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5589	AssertReturn(pState, VERR_NO_MEMORY);
5590	double oglPlane[4];
5591
5592	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)));
5593	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5594
5595	if ( cid >= pState->cContexts
5596	\|\| pState->papContexts[cid]->id != cid)
5597	{
5598	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5599	return VERR_INVALID_PARAMETER;
5600	}
5601	pContext = pState->papContexts[cid];
5602	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5603
5604	/* Store for vm state save/restore. */
5605	pContext->state.aClipPlane[index].fValid = true;
5606	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5607
5608	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5609	oglPlane[0] = (double)plane[0];
5610	oglPlane[1] = (double)plane[1];
5611	oglPlane[2] = (double)plane[2];
5612	oglPlane[3] = (double)plane[3];
5613
5614	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5616
5617	return VINF_SUCCESS;
5618	}
5619
5620	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5621	{
5622	PVMSVGA3DCONTEXT pContext;
5623	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5624	AssertReturn(pState, VERR_NO_MEMORY);
5625
5626	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5627
5628	if ( cid >= pState->cContexts
5629	\|\| pState->papContexts[cid]->id != cid)
5630	{
5631	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5632	return VERR_INVALID_PARAMETER;
5633	}
5634	pContext = pState->papContexts[cid];
5635	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5636
5637	/* Store for vm state save/restore. */
5638	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5639	pContext->state.RectScissor = *pRect;
5640
5641	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5642	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5643
5644	return VINF_SUCCESS;
5645	}
5646
5647	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5648	{
5649	/* Convert byte color components to float (0-1.0) */
5650	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5651	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5652	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5653	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5654	}
5655
5656	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5657	uint32_t cRects, SVGA3dRect *pRect)
5658	{
5659	GLbitfield mask = 0;
5660	PVMSVGA3DCONTEXT pContext;
5661	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5662	AssertReturn(pState, VERR_NO_MEMORY);
5663	GLboolean fDepthWriteEnabled = GL_FALSE;
5664
5665	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));
5666
5667	if ( cid >= pState->cContexts
5668	\|\| pState->papContexts[cid]->id != cid)
5669	{
5670	Log(("vmsvga3dCommandClear invalid context id!\n"));
5671	return VERR_INVALID_PARAMETER;
5672	}
5673	pContext = pState->papContexts[cid];
5674	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5675
5676	if (clearFlag & SVGA3D_CLEAR_COLOR)
5677	{
5678	GLfloat red, green, blue, alpha;
5679
5680	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5681
5682	/* Set the color clear value. */
5683	glClearColor(red, green, blue, alpha);
5684
5685	mask \|= GL_COLOR_BUFFER_BIT;
5686	}
5687	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5688	{
5689	/** @todo possibly the same problem as with glDepthMask */
5690	glClearStencil(stencil);
5691	mask \|= GL_STENCIL_BUFFER_BIT;
5692	}
5693	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5694	{
5695	glClearDepth((GLdouble)depth);
5696	mask \|= GL_DEPTH_BUFFER_BIT;
5697
5698	/* glClear will not clear the depth buffer if writing is disabled. */
5699	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5700	if (fDepthWriteEnabled == GL_FALSE)
5701	glDepthMask(GL_TRUE);
5702	}
5703
5704	if (cRects)
5705	{
5706	/* Save the current scissor test bit and scissor box. */
5707	glPushAttrib(GL_SCISSOR_BIT);
5708	glEnable(GL_SCISSOR_TEST);
5709	for (unsigned i=0; i < cRects; i++)
5710	{
5711	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));
5712	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5713	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5714	glClear(mask);
5715	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5716	}
5717	/* Restore the old scissor test bit and box */
5718	glPopAttrib();
5719	}
5720	else
5721	{
5722	glClear(mask);
5723	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5724	}
5725
5726	/* Restore depth write state. */
5727	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5728	&& fDepthWriteEnabled == GL_FALSE)
5729	glDepthMask(GL_FALSE);
5730
5731	return VINF_SUCCESS;
5732	}
5733
5734	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5735	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5736	{
5737	normalized = GL_FALSE;
5738	switch (identity.type)
5739	{
5740	case SVGA3D_DECLTYPE_FLOAT1:
5741	size = 1;
5742	type = GL_FLOAT;
5743	break;
5744	case SVGA3D_DECLTYPE_FLOAT2:
5745	size = 2;
5746	type = GL_FLOAT;
5747	break;
5748	case SVGA3D_DECLTYPE_FLOAT3:
5749	size = 3;
5750	type = GL_FLOAT;
5751	break;
5752	case SVGA3D_DECLTYPE_FLOAT4:
5753	size = 4;
5754	type = GL_FLOAT;
5755	break;
5756
5757	case SVGA3D_DECLTYPE_D3DCOLOR:
5758	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5759	type = GL_UNSIGNED_BYTE;
5760	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5761	break;
5762
5763	case SVGA3D_DECLTYPE_UBYTE4N:
5764	normalized = GL_TRUE;
5765	/* no break */
5766	case SVGA3D_DECLTYPE_UBYTE4:
5767	size = 4;
5768	type = GL_UNSIGNED_BYTE;
5769	break;
5770
5771	case SVGA3D_DECLTYPE_SHORT2N:
5772	normalized = GL_TRUE;
5773	/* no break */
5774	case SVGA3D_DECLTYPE_SHORT2:
5775	size = 2;
5776	type = GL_SHORT;
5777	break;
5778
5779	case SVGA3D_DECLTYPE_SHORT4N:
5780	normalized = GL_TRUE;
5781	/* no break */
5782	case SVGA3D_DECLTYPE_SHORT4:
5783	size = 4;
5784	type = GL_SHORT;
5785	break;
5786
5787	case SVGA3D_DECLTYPE_USHORT4N:
5788	normalized = GL_TRUE;
5789	size = 4;
5790	type = GL_UNSIGNED_SHORT;
5791	break;
5792
5793	case SVGA3D_DECLTYPE_USHORT2N:
5794	normalized = GL_TRUE;
5795	size = 2;
5796	type = GL_UNSIGNED_SHORT;
5797	break;
5798
5799	case SVGA3D_DECLTYPE_UDEC3:
5800	size = 3;
5801	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5802	break;
5803
5804	case SVGA3D_DECLTYPE_DEC3N:
5805	normalized = true;
5806	size = 3;
5807	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5808	break;
5809
5810	case SVGA3D_DECLTYPE_FLOAT16_2:
5811	size = 2;
5812	type = GL_HALF_FLOAT;
5813	break;
5814	case SVGA3D_DECLTYPE_FLOAT16_4:
5815	size = 4;
5816	type = GL_HALF_FLOAT;
5817	break;
5818	default:
5819	AssertFailedReturn(VERR_INVALID_PARAMETER);
5820	}
5821
5822	//pVertexElement->Method = identity.method;
5823	//pVertexElement->Usage = identity.usage;
5824
5825	return VINF_SUCCESS;
5826	}
5827
5828	/* Convert VMWare primitive type to its OpenGL equivalent. */
5829	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5830	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5831	{
5832	switch (PrimitiveType)
5833	{
5834	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5835	*pMode = GL_TRIANGLES;
5836	pcVertices = cPrimitiveCount 3;
5837	break;
5838	case SVGA3D_PRIMITIVE_POINTLIST:
5839	*pMode = GL_POINTS;
5840	*pcVertices = cPrimitiveCount;
5841	break;
5842	case SVGA3D_PRIMITIVE_LINELIST:
5843	*pMode = GL_LINES;
5844	pcVertices = cPrimitiveCount 2;
5845	break;
5846	case SVGA3D_PRIMITIVE_LINESTRIP:
5847	*pMode = GL_LINE_STRIP;
5848	*pcVertices = cPrimitiveCount + 1;
5849	break;
5850	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5851	*pMode = GL_TRIANGLE_STRIP;
5852	*pcVertices = cPrimitiveCount + 2;
5853	break;
5854	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5855	*pMode = GL_TRIANGLE_FAN;
5856	*pcVertices = cPrimitiveCount + 2;
5857	break;
5858	default:
5859	return VERR_INVALID_PARAMETER;
5860	}
5861	return VINF_SUCCESS;
5862	}
5863
5864	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5865	{
5866	int rc;
5867
5868	/* Reset the view matrix (also takes the world matrix into account). */
5869	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5870	{
5871	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5872	}
5873	else
5874	{
5875	float matrix[16];
5876
5877	/* identity matrix if no matrix set. */
5878	memset(matrix, 0, sizeof(matrix));
5879	matrix[0] = 1.0;
5880	matrix[5] = 1.0;
5881	matrix[10] = 1.0;
5882	matrix[15] = 1.0;
5883	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5884	}
5885
5886	/* Reset the projection matrix. */
5887	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5888	{
5889	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5890	}
5891	else
5892	{
5893	float matrix[16];
5894
5895	/* identity matrix if no matrix set. */
5896	memset(matrix, 0, sizeof(matrix));
5897	matrix[0] = 1.0;
5898	matrix[5] = 1.0;
5899	matrix[10] = 1.0;
5900	matrix[15] = 1.0;
5901	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5902	}
5903	AssertRC(rc);
5904	return rc;
5905	}
5906
5907	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5908	{
5909	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5910	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5911	PVMSVGA3DSURFACE pVertexSurface;
5912
5913	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5914	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5915
5916	pVertexSurface = pState->papSurfaces[sidVertex];
5917	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5918
5919	/* Create and/or bind the vertex buffer. */
5920	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5921	{
5922	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5923	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5924	pContext = &pState->SharedCtx;
5925	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5926
5927	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5928	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5929
5930	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5931	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5932
5933	Assert(pVertexSurface->fDirty);
5934	/** @todo rethink usage dynamic/static */
5935	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5936	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5937
5938	pVertexSurface->pMipmapLevels[0].fDirty = false;
5939	pVertexSurface->fDirty = false;
5940
5941	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5942
5943	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5944	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5945
5946	pContext = pSavedCtx;
5947	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5948	}
5949
5950	Assert(pVertexSurface->fDirty == false);
5951	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5952	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5953
5954	/* Setup the vertex declarations. */
5955	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5956	{
5957	GLint size;
5958	GLenum type;
5959	GLboolean normalized;
5960	GLuint index = iVertexDeclBase + iVertex;
5961
5962	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));
5963
5964	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5965	AssertRCReturn(rc, rc);
5966
5967	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5968	{
5969	/* Use numbered vertex arrays when shaders are active. */
5970	pState->ext.glEnableVertexAttribArray(index);
5971	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5972	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5973	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5974	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5975	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5976	}
5977	else
5978	{
5979	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5980	switch (pVertexDecl[iVertex].identity.usage)
5981	{
5982	case SVGA3D_DECLUSAGE_POSITIONT:
5983	case SVGA3D_DECLUSAGE_POSITION:
5984	{
5985	glEnableClientState(GL_VERTEX_ARRAY);
5986	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5987	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5988	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5989	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5990	break;
5991	}
5992	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5993	AssertFailed();
5994	break;
5995	case SVGA3D_DECLUSAGE_BLENDINDICES:
5996	AssertFailed();
5997	break;
5998	case SVGA3D_DECLUSAGE_NORMAL:
5999	glEnableClientState(GL_NORMAL_ARRAY);
6000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6001	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6002	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6003	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6004	break;
6005	case SVGA3D_DECLUSAGE_PSIZE:
6006	AssertFailed();
6007	break;
6008	case SVGA3D_DECLUSAGE_TEXCOORD:
6009	/* Specify the affected texture unit. */
6010	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6011	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6012	#else
6013	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6014	#endif
6015	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6016	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6017	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6018	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6019	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6020	break;
6021	case SVGA3D_DECLUSAGE_TANGENT:
6022	AssertFailed();
6023	break;
6024	case SVGA3D_DECLUSAGE_BINORMAL:
6025	AssertFailed();
6026	break;
6027	case SVGA3D_DECLUSAGE_TESSFACTOR:
6028	AssertFailed();
6029	break;
6030	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6031	glEnableClientState(GL_COLOR_ARRAY);
6032	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6033	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6034	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6036	break;
6037	case SVGA3D_DECLUSAGE_FOG:
6038	glEnableClientState(GL_FOG_COORD_ARRAY);
6039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6040	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6041	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6043	break;
6044	case SVGA3D_DECLUSAGE_DEPTH:
6045	AssertFailed();
6046	break;
6047	case SVGA3D_DECLUSAGE_SAMPLE:
6048	AssertFailed();
6049	break;
6050	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6051	}
6052	}
6053
6054	#ifdef LOG_ENABLED
6055	if (pVertexDecl[iVertex].array.stride == 0)
6056	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6057	#endif
6058	}
6059
6060	return VINF_SUCCESS;
6061	}
6062
6063	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6064	{
6065	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6066
6067	/* Clean up the vertex declarations. */
6068	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6069	{
6070	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6071	{
6072	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6073	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6074	vmsvga3dResetTransformMatrices(pThis, pContext);
6075	}
6076
6077	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6078	{
6079	/* Use numbered vertex arrays when shaders are active. */
6080	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6081	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6082	}
6083	else
6084	{
6085	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6086	switch (pVertexDecl[iVertex].identity.usage)
6087	{
6088	case SVGA3D_DECLUSAGE_POSITION:
6089	case SVGA3D_DECLUSAGE_POSITIONT:
6090	glDisableClientState(GL_VERTEX_ARRAY);
6091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6092	break;
6093	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6094	break;
6095	case SVGA3D_DECLUSAGE_BLENDINDICES:
6096	break;
6097	case SVGA3D_DECLUSAGE_NORMAL:
6098	glDisableClientState(GL_NORMAL_ARRAY);
6099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6100	break;
6101	case SVGA3D_DECLUSAGE_PSIZE:
6102	break;
6103	case SVGA3D_DECLUSAGE_TEXCOORD:
6104	/* Specify the affected texture unit. */
6105	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6106	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6107	#else
6108	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6109	#endif
6110	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6111	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6112	break;
6113	case SVGA3D_DECLUSAGE_TANGENT:
6114	break;
6115	case SVGA3D_DECLUSAGE_BINORMAL:
6116	break;
6117	case SVGA3D_DECLUSAGE_TESSFACTOR:
6118	break;
6119	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6120	glDisableClientState(GL_COLOR_ARRAY);
6121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6122	break;
6123	case SVGA3D_DECLUSAGE_FOG:
6124	glDisableClientState(GL_FOG_COORD_ARRAY);
6125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6126	break;
6127	case SVGA3D_DECLUSAGE_DEPTH:
6128	break;
6129	case SVGA3D_DECLUSAGE_SAMPLE:
6130	break;
6131	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6132	}
6133	}
6134	}
6135	/* Unbind the vertex buffer after usage. */
6136	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6138	return VINF_SUCCESS;
6139	}
6140
6141	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl pVertexDecl, uint32_t numRanges, SVGA3dPrimitiveRange pRange, uint32_t cVertexDivisor, SVGA3dVertexDivisor *pVertexDivisor)
6142	{
6143	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6144	PVMSVGA3DCONTEXT pContext;
6145	AssertReturn(pState, VERR_INTERNAL_ERROR);
6146	int rc = VERR_NOT_IMPLEMENTED;
6147	uint32_t iCurrentVertex;
6148
6149	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6150
6151	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6152	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6153	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6154	/** @todo Non-zero cVertexDivisor */
6155	Assert(!cVertexDivisor);
6156
6157	if ( cid >= pState->cContexts
6158	\|\| pState->papContexts[cid]->id != cid)
6159	{
6160	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6161	return VERR_INVALID_PARAMETER;
6162	}
6163	pContext = pState->papContexts[cid];
6164	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6165
6166	/* Check for pretransformed vertex declarations. */
6167	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6168	{
6169	switch (pVertexDecl[iVertex].identity.usage)
6170	{
6171	case SVGA3D_DECLUSAGE_POSITIONT:
6172	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6173	case SVGA3D_DECLUSAGE_POSITION:
6174	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w, pContext->state.RectViewPort.h,
6175	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6176	break;
6177	}
6178	}
6179
6180	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6181	if (pContext->pShaderContext)
6182	{
6183	uint32_t rtHeight = 0;
6184
6185	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6186	{
6187	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
6188	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6189	}
6190
6191	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6192	}
6193
6194	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6195	iCurrentVertex = 0;
6196	while (iCurrentVertex < numVertexDecls)
6197	{
6198	uint32_t sidVertex = SVGA_ID_INVALID;
6199	uint32_t iVertex;
6200
6201	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6202	{
6203	if ( sidVertex != SVGA_ID_INVALID
6204	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6205	)
6206	break;
6207	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6208	}
6209
6210	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6211	AssertRCReturn(rc, rc);
6212
6213	iCurrentVertex = iVertex;
6214	}
6215
6216	/* Now draw the primitives. */
6217	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6218	{
6219	GLenum modeDraw;
6220	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6221	PVMSVGA3DSURFACE pIndexSurface = NULL;
6222	unsigned cVertices;
6223
6224	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6225	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6226	if (RT_FAILURE(rc))
6227	{
6228	AssertRC(rc);
6229	goto internal_error;
6230	}
6231
6232	if (sidIndex != SVGA3D_INVALID_ID)
6233	{
6234	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6235
6236	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6237	\|\| sidIndex >= pState->cSurfaces
6238	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6239	{
6240	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6241	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6242	rc = VERR_INVALID_PARAMETER;
6243	goto internal_error;
6244	}
6245	pIndexSurface = pState->papSurfaces[sidIndex];
6246	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6247
6248	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6249	{
6250	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6251	pContext = &pState->SharedCtx;
6252	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6253
6254	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6255	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6256
6257	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6258	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6259
6260	Assert(pIndexSurface->fDirty);
6261
6262	/** @todo rethink usage dynamic/static */
6263	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6264	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6265
6266	pIndexSurface->pMipmapLevels[0].fDirty = false;
6267	pIndexSurface->fDirty = false;
6268
6269	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6270
6271	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6272	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6273
6274	pContext = pState->papContexts[cid];
6275	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6276	}
6277	Assert(pIndexSurface->fDirty == false);
6278
6279	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6280	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6281	}
6282
6283	if (!pIndexSurface)
6284	{
6285	/* Render without an index buffer */
6286	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6287	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6288	}
6289	else
6290	{
6291	GLenum indexType;
6292
6293	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6294	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6295
6296	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6297	{
6298	indexType = GL_UNSIGNED_BYTE;
6299	}
6300	else
6301	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6302	{
6303	indexType = GL_UNSIGNED_SHORT;
6304	}
6305	else
6306	{
6307	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6308	indexType = GL_UNSIGNED_INT;
6309	}
6310
6311	/* Render with an index buffer */
6312	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));
6313	if (pRange[iPrimitive].indexBias == 0)
6314	glDrawElements(modeDraw,
6315	cVertices,
6316	indexType,
6317	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6318	else
6319	pState->ext.glDrawElementsBaseVertex(modeDraw,
6320	cVertices,
6321	indexType,
6322	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6323	pRange[iPrimitive].indexBias); /* basevertex */
6324
6325	/* Unbind the index buffer after usage. */
6326	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6327	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6328	}
6329	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6330	}
6331
6332	internal_error:
6333
6334	/* Deactivate the vertex declarations. */
6335	iCurrentVertex = 0;
6336	while (iCurrentVertex < numVertexDecls)
6337	{
6338	uint32_t sidVertex = SVGA_ID_INVALID;
6339	uint32_t iVertex;
6340
6341	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6342	{
6343	if ( sidVertex != SVGA_ID_INVALID
6344	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6345	)
6346	break;
6347	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6348	}
6349
6350	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6351	AssertRCReturn(rc, rc);
6352
6353	iCurrentVertex = iVertex;
6354	}
6355	#ifdef DEBUG
6356	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6357	{
6358	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6359	{
6360	GLint activeTexture = 0;
6361	GLint activeTextureUnit = 0;
6362
6363	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6364	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6365	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6366	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6367
6368	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6369	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6370	pState->ext.glActiveTexture(activeTextureUnit);
6371	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6372
6373	# 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. */
6374	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6375	{
6376	PVMSVGA3DSURFACE pTexture;
6377	pTexture = pState->papSurfaces[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6378
6379	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6380	}
6381	# else
6382	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTexture[i]];
6383	AssertMsg(pTexture->id == pContext->aSidActiveTexture[i], ("%x vs %x\n", pTexture->id == pContext->aSidActiveTexture[i]));
6384	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6385	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6386	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTexture[i]));
6387	# endif
6388	}
6389	}
6390	#endif
6391
6392	#ifdef DEBUG_GFX_WINDOW
6393	if (pContext->sidRenderTarget)
6394	{
6395	SVGA3dCopyRect rect;
6396
6397	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6398	rect.w = pContext->state.RectViewPort.w;
6399	rect.h = pContext->state.RectViewPort.h;
6400	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6401	}
6402	#endif
6403
6404	return rc;
6405	}
6406
6407
6408	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6409	{
6410	PVMSVGA3DCONTEXT pContext;
6411	PVMSVGA3DSHADER pShader;
6412	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6413	AssertReturn(pState, VERR_NO_MEMORY);
6414	int rc;
6415
6416	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6417	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6418
6419	if ( cid >= pState->cContexts
6420	\|\| pState->papContexts[cid]->id != cid)
6421	{
6422	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6423	return VERR_INVALID_PARAMETER;
6424	}
6425	pContext = pState->papContexts[cid];
6426	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6427
6428	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6429	if (type == SVGA3D_SHADERTYPE_VS)
6430	{
6431	if (shid >= pContext->cVertexShaders)
6432	{
6433	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6434	AssertReturn(pvNew, VERR_NO_MEMORY);
6435	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6436	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6437	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6438	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6439	pContext->cVertexShaders = shid + 1;
6440	}
6441	/* If one already exists with this id, then destroy it now. */
6442	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6443	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6444
6445	pShader = &pContext->paVertexShader[shid];
6446	}
6447	else
6448	{
6449	Assert(type == SVGA3D_SHADERTYPE_PS);
6450	if (shid >= pContext->cPixelShaders)
6451	{
6452	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6453	AssertReturn(pvNew, VERR_NO_MEMORY);
6454	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6455	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6456	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6457	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6458	pContext->cPixelShaders = shid + 1;
6459	}
6460	/* If one already exists with this id, then destroy it now. */
6461	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6462	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6463
6464	pShader = &pContext->paPixelShader[shid];
6465	}
6466
6467	memset(pShader, 0, sizeof(*pShader));
6468	pShader->id = shid;
6469	pShader->cid = cid;
6470	pShader->type = type;
6471	pShader->cbData = cbData;
6472	pShader->pShaderProgram = RTMemAllocZ(cbData);
6473	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6474	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6475
6476	#ifdef DUMP_SHADER_DISASSEMBLY
6477	LPD3DXBUFFER pDisassembly;
6478	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6479	if (hr == D3D_OK)
6480	{
6481	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6482	pDisassembly->Release();
6483	}
6484	#endif
6485
6486	switch (type)
6487	{
6488	case SVGA3D_SHADERTYPE_VS:
6489	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6490	break;
6491
6492	case SVGA3D_SHADERTYPE_PS:
6493	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6494	break;
6495
6496	default:
6497	AssertFailedReturn(VERR_INVALID_PARAMETER);
6498	}
6499	if (rc != VINF_SUCCESS)
6500	{
6501	RTMemFree(pShader->pShaderProgram);
6502	memset(pShader, 0, sizeof(*pShader));
6503	pShader->id = SVGA3D_INVALID_ID;
6504	}
6505
6506	return rc;
6507	}
6508
6509	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6510	{
6511	PVMSVGA3DCONTEXT pContext;
6512	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6513	AssertReturn(pState, VERR_NO_MEMORY);
6514	PVMSVGA3DSHADER pShader = NULL;
6515	int rc;
6516
6517	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6518
6519	if ( cid >= pState->cContexts
6520	\|\| pState->papContexts[cid]->id != cid)
6521	{
6522	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6523	return VERR_INVALID_PARAMETER;
6524	}
6525	pContext = pState->papContexts[cid];
6526	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6527
6528	if (type == SVGA3D_SHADERTYPE_VS)
6529	{
6530	if ( shid < pContext->cVertexShaders
6531	&& pContext->paVertexShader[shid].id == shid)
6532	{
6533	pShader = &pContext->paVertexShader[shid];
6534	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6535	AssertRC(rc);
6536	}
6537	}
6538	else
6539	{
6540	Assert(type == SVGA3D_SHADERTYPE_PS);
6541	if ( shid < pContext->cPixelShaders
6542	&& pContext->paPixelShader[shid].id == shid)
6543	{
6544	pShader = &pContext->paPixelShader[shid];
6545	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6546	AssertRC(rc);
6547	}
6548	}
6549
6550	if (pShader)
6551	{
6552	if (pShader->pShaderProgram)
6553	RTMemFree(pShader->pShaderProgram);
6554	memset(pShader, 0, sizeof(*pShader));
6555	pShader->id = SVGA3D_INVALID_ID;
6556	}
6557	else
6558	AssertFailedReturn(VERR_INVALID_PARAMETER);
6559
6560	return VINF_SUCCESS;
6561	}
6562
6563	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6564	{
6565	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6566	AssertReturn(pState, VERR_NO_MEMORY);
6567	int rc;
6568
6569	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6570
6571	if ( !pContext
6572	&& cid < pState->cContexts
6573	&& pState->papContexts[cid]->id == cid)
6574	pContext = pState->papContexts[cid];
6575	else if (!pContext)
6576	{
6577	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6578	Log(("vmsvga3dShaderSet invalid context id!\n"));
6579	return VERR_INVALID_PARAMETER;
6580	}
6581	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6582
6583	if (type == SVGA3D_SHADERTYPE_VS)
6584	{
6585	/* Save for vm state save/restore. */
6586	pContext->state.shidVertex = shid;
6587	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6588
6589	if ( shid < pContext->cVertexShaders
6590	&& pContext->paVertexShader[shid].id == shid)
6591	{
6592	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6593	Assert(type == pShader->type);
6594
6595	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6596	AssertRCReturn(rc, rc);
6597	}
6598	else
6599	if (shid == SVGA_ID_INVALID)
6600	{
6601	/* Unselect shader. */
6602	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6603	AssertRCReturn(rc, rc);
6604	}
6605	else
6606	AssertFailedReturn(VERR_INVALID_PARAMETER);
6607	}
6608	else
6609	{
6610	/* Save for vm state save/restore. */
6611	pContext->state.shidPixel = shid;
6612	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6613
6614	Assert(type == SVGA3D_SHADERTYPE_PS);
6615	if ( shid < pContext->cPixelShaders
6616	&& pContext->paPixelShader[shid].id == shid)
6617	{
6618	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6619	Assert(type == pShader->type);
6620
6621	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6622	AssertRCReturn(rc, rc);
6623	}
6624	else
6625	if (shid == SVGA_ID_INVALID)
6626	{
6627	/* Unselect shader. */
6628	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6629	AssertRCReturn(rc, rc);
6630	}
6631	else
6632	AssertFailedReturn(VERR_INVALID_PARAMETER);
6633	}
6634
6635	return VINF_SUCCESS;
6636	}
6637
6638	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6639	{
6640	PVMSVGA3DCONTEXT pContext;
6641	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6642	AssertReturn(pState, VERR_NO_MEMORY);
6643	int rc;
6644
6645	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6646
6647	if ( cid >= pState->cContexts
6648	\|\| pState->papContexts[cid]->id != cid)
6649	{
6650	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6651	return VERR_INVALID_PARAMETER;
6652	}
6653	pContext = pState->papContexts[cid];
6654	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6655
6656	for (uint32_t i = 0; i < cRegisters; i++)
6657	{
6658	#ifdef LOG_ENABLED
6659	switch (ctype)
6660	{
6661	case SVGA3D_CONST_TYPE_FLOAT:
6662	{
6663	float pValuesF = (float )pValues;
6664	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)));
6665	break;
6666	}
6667
6668	case SVGA3D_CONST_TYPE_INT:
6669	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6670	break;
6671
6672	case SVGA3D_CONST_TYPE_BOOL:
6673	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6674	break;
6675	}
6676	#endif
6677	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6678	}
6679
6680	switch (type)
6681	{
6682	case SVGA3D_SHADERTYPE_VS:
6683	switch (ctype)
6684	{
6685	case SVGA3D_CONST_TYPE_FLOAT:
6686	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6687	break;
6688
6689	case SVGA3D_CONST_TYPE_INT:
6690	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6691	break;
6692
6693	case SVGA3D_CONST_TYPE_BOOL:
6694	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6695	break;
6696
6697	default:
6698	AssertFailedReturn(VERR_INVALID_PARAMETER);
6699	}
6700	AssertRCReturn(rc, rc);
6701	break;
6702
6703	case SVGA3D_SHADERTYPE_PS:
6704	switch (ctype)
6705	{
6706	case SVGA3D_CONST_TYPE_FLOAT:
6707	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6708	break;
6709
6710	case SVGA3D_CONST_TYPE_INT:
6711	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6712	break;
6713
6714	case SVGA3D_CONST_TYPE_BOOL:
6715	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6716	break;
6717
6718	default:
6719	AssertFailedReturn(VERR_INVALID_PARAMETER);
6720	}
6721	AssertRCReturn(rc, rc);
6722	break;
6723
6724	default:
6725	AssertFailedReturn(VERR_INVALID_PARAMETER);
6726	}
6727
6728	return VINF_SUCCESS;
6729	}
6730
6731
6732	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6733	{
6734	AssertFailed();
6735	return VERR_NOT_IMPLEMENTED;
6736	}
6737
6738	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6739	{
6740	AssertFailed();
6741	return VERR_NOT_IMPLEMENTED;
6742	}
6743
6744	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6745	{
6746	AssertFailed();
6747	return VERR_NOT_IMPLEMENTED;
6748	}
6749

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 61006

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