DevVGA-SVGA3d-ogl.cpp@ 73238

Last change on this file since 73238 was 73238, checked in by vboxsync, 7 years ago
DevVGA-SVGA3d-ogl: fixed wrong handling of GL_TEXTURE_MAX_LEVEL; added some debug code (disabled)
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 263.9 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 73238 2018-07-19 12:36:22Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.215389.xyz. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#define MANUAL_FLIP_SURFACE_DATA
91	/* Enable to render the result of DrawPrimitive in a seperate window. */
92	//#define DEBUG_GFX_WINDOW
93
94
95	/**
96	* Macro for doing something and then checking for errors during initialization.
97	* Uses AssertLogRelMsg.
98	*/
99	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
100	do \
101	{ \
102	a_Expr; \
103	GLenum iGlError = glGetError(); \
104	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
105	} while (0)
106
107	/**
108	* Macro for doing something and then checking for errors during initialization,
109	* doing the same in the other context when enabled.
110	*
111	* This will try both profiles in dual profile builds. Caller must be in the
112	* default context.
113	*
114	* Uses AssertLogRelMsg to indicate trouble.
115	*/
116	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
117	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
118	do \
119	{ \
120	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
121	a_Expr; \
122	GLenum iGlError = glGetError(); \
123	if (iGlError != GL_NO_ERROR) \
124	{ \
125	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError2 = glGetError(); \
129	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
130	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
131	} \
132	} while (0)
133	#else
134	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
135	#endif
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	/* Define the default light parameters as specified by MSDN. */
142	/** @todo move out; fetched from Wine */
143	const SVGA3dLightData vmsvga3d_default_light =
144	{
145	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
146	false, /* inWorldSpace */
147	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
149	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
150	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
151	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
152	0.0f, /* range */
153	0.0f, /* falloff */
154	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
155	0.0f, /* theta */
156	0.0f /* phi */
157	};
158
159
160	/*********************************************************************************************************************************
161	* Internal Functions *
162	*********************************************************************************************************************************/
163	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
164	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
165
166	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
167	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
168
169
170	/**
171	* Checks if the given OpenGL extension is supported.
172	*
173	* @returns true if supported, false if not.
174	* @param pState The VMSVGA3d state.
175	* @param rsMinGLVersion The OpenGL version that introduced this feature
176	* into the core.
177	* @param pszWantedExtension The name of the OpenGL extension we want padded
178	* with one space at each end.
179	* @remarks Init time only.
180	*/
181	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
182	{
183	RT_NOREF(rsMinGLVersion);
184	/* check padding. */
185	Assert(pszWantedExtension[0] == ' ');
186	Assert(pszWantedExtension[1] != ' ');
187	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
188
189	/* Look it up. */
190	bool fRet = false;
191	if (strstr(pState->pszExtensions, pszWantedExtension))
192	fRet = true;
193
194	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( rsMinGLVersion == 0.0
197	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
205	#endif
206	return fRet;
207	}
208
209
210	/**
211	* Outputs GL_EXTENSIONS list to the release log.
212	*/
213	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
214	{
215	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
216	bool fBuffered = RTLogRelSetBuffering(true);
217
218	/*
219	* Determin the column widths first.
220	*/
221	size_t acchWidths[4] = { 1, 1, 1, 1 };
222	uint32_t i;
223	const char *psz = pszExtensions;
224	for (i = 0; ; i++)
225	{
226	while (*psz == ' ')
227	psz++;
228	if (!*psz)
229	break;
230
231	const char *pszEnd = strchr(psz, ' ');
232	AssertBreak(pszEnd);
233	size_t cch = pszEnd - psz;
234
235	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
236	if (acchWidths[iColumn] < cch)
237	acchWidths[iColumn] = cch;
238
239	psz = pszEnd;
240	}
241
242	/*
243	* Output it.
244	*/
245	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
246	psz = pszExtensions;
247	for (i = 0; ; i++)
248	{
249	while (*psz == ' ')
250	psz++;
251	if (!*psz)
252	break;
253
254	const char *pszEnd = strchr(psz, ' ');
255	AssertBreak(pszEnd);
256	size_t cch = pszEnd - psz;
257
258	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
259	if (iColumn == 0)
260	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
261	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
262	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
263	else
264	LogRel((" %.*s", cch, psz));
265
266	psz = pszEnd;
267	}
268
269	RTLogRelSetBuffering(fBuffered);
270	LogRel(("\n"));
271	}
272
273	/**
274	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
275	* @a ppszExtensions.
276	*
277	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
278	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
279	* @param fGLProfileVersion The OpenGL profile version.
280	*/
281	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
282	{
283	int rc;
284	*ppszExtensions = NULL;
285
286	/*
287	* Try the old glGetString interface first.
288	*/
289	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
290	if (pszExtensions)
291	{
292	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
293	AssertLogRelRCReturn(rc, rc);
294	}
295	else
296	{
297	/*
298	* The new interface where each extension string is retrieved separately.
299	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
300	* the above GL_EXTENSIONS error lingers on darwin. sucks.
301	*/
302	#ifndef GL_NUM_EXTENSIONS
303	# define GL_NUM_EXTENSIONS 0x821D
304	#endif
305	GLint cExtensions = 1024;
306	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
307	Assert(cExtensions != 1024);
308
309	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
310	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
311
312	rc = RTStrAAppend(ppszExtensions, " ");
313	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
314	{
315	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
316	if (pszExt)
317	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
318	}
319	AssertRCReturn(rc, rc);
320	}
321
322	#if 1
323	/*
324	* Add extensions promoted into the core OpenGL profile.
325	*/
326	static const struct
327	{
328	float fGLVersion;
329	const char *pszzExtensions;
330	} s_aPromotedExtensions[] =
331	{
332	{
333	1.1f,
334	" GL_EXT_vertex_array \0"
335	" GL_EXT_polygon_offset \0"
336	" GL_EXT_blend_logic_op \0"
337	" GL_EXT_texture \0"
338	" GL_EXT_copy_texture \0"
339	" GL_EXT_subtexture \0"
340	" GL_EXT_texture_object \0"
341	" GL_ARB_framebuffer_object \0"
342	" GL_ARB_map_buffer_range \0"
343	" GL_ARB_vertex_array_object \0"
344	"\0"
345	},
346	{
347	1.2f,
348	" EXT_texture3D \0"
349	" EXT_bgra \0"
350	" EXT_packed_pixels \0"
351	" EXT_rescale_normal \0"
352	" EXT_separate_specular_color \0"
353	" SGIS_texture_edge_clamp \0"
354	" SGIS_texture_lod \0"
355	" EXT_draw_range_elements \0"
356	"\0"
357	},
358	{
359	1.3f,
360	" GL_ARB_texture_compression \0"
361	" GL_ARB_texture_cube_map \0"
362	" GL_ARB_multisample \0"
363	" GL_ARB_multitexture \0"
364	" GL_ARB_texture_env_add \0"
365	" GL_ARB_texture_env_combine \0"
366	" GL_ARB_texture_env_dot3 \0"
367	" GL_ARB_texture_border_clamp \0"
368	" GL_ARB_transpose_matrix \0"
369	"\0"
370	},
371	{
372	1.5f,
373	" GL_SGIS_generate_mipmap \0"
374	/" GL_NV_blend_equare \0"/
375	" GL_ARB_depth_texture \0"
376	" GL_ARB_shadow \0"
377	" GL_EXT_fog_coord \0"
378	" GL_EXT_multi_draw_arrays \0"
379	" GL_ARB_point_parameters \0"
380	" GL_EXT_secondary_color \0"
381	" GL_EXT_blend_func_separate \0"
382	" GL_EXT_stencil_wrap \0"
383	" GL_ARB_texture_env_crossbar \0"
384	" GL_EXT_texture_lod_bias \0"
385	" GL_ARB_texture_mirrored_repeat \0"
386	" GL_ARB_window_pos \0"
387	"\0"
388	},
389	{
390	1.6f,
391	" GL_ARB_vertex_buffer_object \0"
392	" GL_ARB_occlusion_query \0"
393	" GL_EXT_shadow_funcs \0"
394	},
395	{
396	2.0f,
397	" GL_ARB_shader_objects \0" /??/
398	" GL_ARB_vertex_shader \0" /??/
399	" GL_ARB_fragment_shader \0" /??/
400	" GL_ARB_shading_language_100 \0" /??/
401	" GL_ARB_draw_buffers \0"
402	" GL_ARB_texture_non_power_of_two \0"
403	" GL_ARB_point_sprite \0"
404	" GL_ATI_separate_stencil \0"
405	" GL_EXT_stencil_two_side \0"
406	"\0"
407	},
408	{
409	2.1f,
410	" GL_ARB_pixel_buffer_object \0"
411	" GL_EXT_texture_sRGB \0"
412	"\0"
413	},
414	{
415	3.0f,
416	" GL_ARB_framebuffer_object \0"
417	" GL_ARB_map_buffer_range \0"
418	" GL_ARB_vertex_array_object \0"
419	"\0"
420	},
421	{
422	3.1f,
423	" GL_ARB_copy_buffer \0"
424	" GL_ARB_uniform_buffer_object \0"
425	"\0"
426	},
427	{
428	3.2f,
429	" GL_ARB_vertex_array_bgra \0"
430	" GL_ARB_draw_elements_base_vertex \0"
431	" GL_ARB_fragment_coord_conventions \0"
432	" GL_ARB_provoking_vertex \0"
433	" GL_ARB_seamless_cube_map \0"
434	" GL_ARB_texture_multisample \0"
435	" GL_ARB_depth_clamp \0"
436	" GL_ARB_sync \0"
437	" GL_ARB_geometry_shader4 \0" /??/
438	"\0"
439	},
440	{
441	3.3f,
442	" GL_ARB_blend_func_extended \0"
443	" GL_ARB_sampler_objects \0"
444	" GL_ARB_explicit_attrib_location \0"
445	" GL_ARB_occlusion_query2 \0"
446	" GL_ARB_shader_bit_encoding \0"
447	" GL_ARB_texture_rgb10_a2ui \0"
448	" GL_ARB_texture_swizzle \0"
449	" GL_ARB_timer_query \0"
450	" GL_ARB_vertex_type_2_10_10_10_rev \0"
451	"\0"
452	},
453	{
454	4.0f,
455	" GL_ARB_texture_query_lod \0"
456	" GL_ARB_draw_indirect \0"
457	" GL_ARB_gpu_shader5 \0"
458	" GL_ARB_gpu_shader_fp64 \0"
459	" GL_ARB_shader_subroutine \0"
460	" GL_ARB_tessellation_shader \0"
461	" GL_ARB_texture_buffer_object_rgb32 \0"
462	" GL_ARB_texture_cube_map_array \0"
463	" GL_ARB_texture_gather \0"
464	" GL_ARB_transform_feedback2 \0"
465	" GL_ARB_transform_feedback3 \0"
466	"\0"
467	},
468	{
469	4.1f,
470	" GL_ARB_ES2_compatibility \0"
471	" GL_ARB_get_program_binary \0"
472	" GL_ARB_separate_shader_objects \0"
473	" GL_ARB_shader_precision \0"
474	" GL_ARB_vertex_attrib_64bit \0"
475	" GL_ARB_viewport_array \0"
476	"\0"
477	}
478	};
479
480	uint32_t cPromoted = 0;
481	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
482	{
483	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
484	while (*pszExt)
485	{
486	# ifdef VBOX_STRICT
487	size_t cchExt = strlen(pszExt);
488	Assert(cchExt > 3);
489	Assert(pszExt[0] == ' ');
490	Assert(pszExt[1] != ' ');
491	Assert(pszExt[cchExt - 2] != ' ');
492	Assert(pszExt[cchExt - 1] == ' ');
493	# endif
494
495	if (strstr(*ppszExtensions, pszExt) == NULL)
496	{
497	if (cPromoted++ == 0)
498	{
499	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
500	AssertRCReturn(rc, rc);
501	}
502
503	rc = RTStrAAppend(ppszExtensions, pszExt);
504	AssertRCReturn(rc, rc);
505	}
506
507	pszExt = strchr(pszExt, '\0') + 1;
508	}
509	}
510	#endif
511
512	return VINF_SUCCESS;
513	}
514
515	/**
516	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
517	*/
518	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
519	{
520	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
521	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
523	#else
524	NOREF(pThis);
525	NOREF(fOtherProfile);
526	#endif
527	}
528
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
532	*/
533	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
534	char *pszBuf, size_t cbBuf, bool fOtherProfile)
535	{
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
538	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
539	while (*pszCur == ' ')
540	pszCur++;
541	if (!*pszCur)
542	return false;
543
544	const char *pszEnd = strchr(pszCur, ' ');
545	AssertReturn(pszEnd, false);
546	size_t cch = pszEnd - pszCur;
547	if (cch < cbBuf)
548	{
549	memcpy(pszBuf, pszCur, cch);
550	pszBuf[cch] = '\0';
551	}
552	else if (cbBuf > 0)
553	{
554	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
555	pszBuf[cbBuf - 1] = '\0';
556	}
557
558	ppvEnumCtx = (void )pszEnd;
559	return true;
560	}
561
562
563	/**
564	* Initializes the VMSVGA3D state during VGA device construction.
565	*
566	* Failure are generally not fatal, 3D support will just be disabled.
567	*
568	* @returns VBox status code.
569	* @param pThis The VGA device state where svga.p3dState will be modified.
570	*/
571	int vmsvga3dInit(PVGASTATE pThis)
572	{
573	AssertCompile(GL_TRUE == 1);
574	AssertCompile(GL_FALSE == 0);
575
576	/*
577	* Load and resolve imports from the external shared libraries.
578	*/
579	RTERRINFOSTATIC ErrInfo;
580	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
581	if (RT_FAILURE(rc))
582	{
583	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
584	return rc;
585	}
586	#ifdef RT_OS_DARWIN
587	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
588	if (RT_FAILURE(rc))
589	{
590	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
591	return rc;
592	}
593	#endif
594
595	/*
596	* Allocate the state.
597	*/
598	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
599	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
600
601	#ifdef RT_OS_WINDOWS
602	/* Create event semaphore and async IO thread. */
603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
604	rc = RTSemEventCreate(&pState->WndRequestSem);
605	if (RT_SUCCESS(rc))
606	{
607	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
608	"VMSVGA3DWND");
609	if (RT_SUCCESS(rc))
610	return VINF_SUCCESS;
611
612	/* bail out. */
613	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
614	RTSemEventDestroy(pState->WndRequestSem);
615	}
616	else
617	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
618	RTMemFree(pThis->svga.p3dState);
619	pThis->svga.p3dState = NULL;
620	return rc;
621	#else
622	return VINF_SUCCESS;
623	#endif
624	}
625
626	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
627	int vmsvga3dPowerOn(PVGASTATE pThis)
628	{
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
631	PVMSVGA3DCONTEXT pContext;
632	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
633	PVMSVGA3DCONTEXT pOtherCtx;
634	#endif
635	int rc;
636
637	if (pState->rsGLVersion != 0.0)
638	return VINF_SUCCESS; /* already initialized (load state) */
639
640	/*
641	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
642	*/
643	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
644	AssertRCReturn(rc, rc);
645
646	pContext = pState->papContexts[1];
647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
648
649	LogRel(("VMSVGA3d: OpenGL version: %s\n"
650	"VMSVGA3d: OpenGL Vendor: %s\n"
651	"VMSVGA3d: OpenGL Renderer: %s\n"
652	"VMSVGA3d: OpenGL shader language version: %s\n",
653	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
654	glGetString(GL_SHADING_LANGUAGE_VERSION)));
655
656	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
657	AssertRCReturn(rc, rc);
658	vmsvga3dLogRelExtensions("", pState->pszExtensions);
659
660	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
661
662
663	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
664	/*
665	* Get the extension list for the alternative profile so we can better
666	* figure out the shader model and stuff.
667	*/
668	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
669	AssertLogRelRCReturn(rc, rc);
670	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
671
672	pOtherCtx = pState->papContexts[2];
673	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
674
675	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
676	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
677	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
678	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
679	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
680	glGetString(GL_SHADING_LANGUAGE_VERSION)));
681
682	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
683	AssertRCReturn(rc, rc);
684	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
685
686	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
687
688	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
689	#else
690	pState->pszOtherExtensions = (char *)"";
691	pState->rsOtherGLVersion = pState->rsGLVersion;
692	#endif
693
694
695	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
696	{
697	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
698	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
699	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
700	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
701	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
702	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
703	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
704	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
705	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
706	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
707	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
708	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
709	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
710	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
711	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
712	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
713	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
714	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
715	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
716	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
717	}
718	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
719	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
720	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
721	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
722	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
723	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
724	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
725	#endif
726	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
727	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
729	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
731	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
733	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
735	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
737	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
739	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
741	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
743	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
745	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
749	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
751	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
753	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
754	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
755	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
756	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
757	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
758	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
759	#endif
760	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
761	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
762
763	/* OpenGL 3.2 core */
764	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
765	{
766	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
767	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
768	}
769	else
770	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
771
772	/* OpenGL 3.2 core */
773	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
774	{
775	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
776	}
777	else
778	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
779
780	/* Extension support */
781	#if defined(RT_OS_DARWIN)
782	/** @todo OpenGL version history suggest this, verify... */
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
784	#else
785	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
786	#endif
787
788	#define GLGETPROC(ProcType, ProcName) do { \
789	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
790	AssertMsgReturn(pState->ext.ProcName, (#ProcName " missing"), VERR_NOT_IMPLEMENTED); \
791	} while(0)
792	#define GLGETPROCOPT(ProcType, ProcName) do { \
793	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
794	AssertMsg(pState->ext.ProcName, (#ProcName " missing (optional)")); \
795	} while(0)
796
797	GLGETPROCOPT(PFNGLGENQUERIESPROC , glGenQueries);
798	GLGETPROCOPT(PFNGLDELETEQUERIESPROC , glDeleteQueries);
799	GLGETPROCOPT(PFNGLBEGINQUERYPROC , glBeginQuery);
800	GLGETPROCOPT(PFNGLENDQUERYPROC , glEndQuery);
801	GLGETPROCOPT(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv);
802
803	#undef GLGETPROCOPT
804	#undef GLGETPROC
805	/*
806	* Initialize the capabilities with sensible defaults.
807	*/
808	pState->caps.maxActiveLights = 1;
809	pState->caps.maxTextureBufferSize = 65536;
810	pState->caps.maxTextures = 1;
811	pState->caps.maxClipDistances = 4;
812	pState->caps.maxColorAttachments = 1;
813	pState->caps.maxRectangleTextureSize = 2048;
814	pState->caps.maxTextureAnisotropy = 2;
815	pState->caps.maxVertexShaderInstructions = 1024;
816	pState->caps.maxFragmentShaderInstructions = 1024;
817	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
818	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
819	pState->caps.flPointSize[0] = 1;
820	pState->caps.flPointSize[1] = 1;
821
822	/*
823	* Query capabilities
824	*/
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
827	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
828	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
829	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
830	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
831	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
832	#else
833	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
834	#endif
835	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
836	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
837	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
838	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
839
840	if (pState->ext.glGetProgramivARB)
841	{
842	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
843	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
844	&pState->caps.maxFragmentShaderTemps));
845	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
846	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
847	&pState->caps.maxFragmentShaderInstructions));
848	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
849	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
850	&pState->caps.maxVertexShaderTemps));
851	#ifdef DEBUG_sunlover
852	/// @todo Fix properly!!! Some Windows host drivers return 31 for the compatible OGL context (wglCreateContext).
853	if (pState->caps.maxVertexShaderTemps < 32)
854	pState->caps.maxVertexShaderTemps = 32;
855	#endif
856	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
857	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
858	&pState->caps.maxVertexShaderInstructions));
859	}
860	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
861
862	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
863	* ARB Assembly Language
864	* These are done through testing the presence of extensions. You should test them in this order:
865	* GL_NV_gpu_program4: SM 4.0 or better.
866	* GL_NV_vertex_program3: SM 3.0 or better.
867	* GL_ARB_fragment_program: SM 2.0 or better.
868	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
869	*
870	*/
871	/** @todo distinguish between vertex and pixel shaders??? */
872	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
873	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
874	if (v >= 3.30f)
875	{
876	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
877	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
878	}
879	else
880	if (v >= 1.20f)
881	{
882	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
883	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
884	}
885	else
886	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
887	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
888	{
889	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
890	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
891	}
892	else
893	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
894	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
895	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
896	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
897	)
898	{
899	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
900	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
901	}
902	else
903	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
904	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
905	{
906	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
907	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
908	}
909	else
910	{
911	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
912	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
913	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
914	}
915
916	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
917	{
918	/** @todo Intel drivers don't support this extension! */
919	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
920	}
921	#if 0
922	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
923	SVGA3D_DEVCAP_QUERY_TYPES = 15,
924	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
925	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
926	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
927	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
928	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
929	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
930	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
931	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
932	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
933	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
934	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
935	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
936	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
937	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
938	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
939	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
940	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
941	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
942	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
943	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
944	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
945	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
946	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
947	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
948	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
949	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
950	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
951	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
952	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
953	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
954	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
955	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
956	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
957	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
958	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
959	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
960	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
961	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
962	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
963	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
964	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
965	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
966	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
967	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
968	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
969	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
970	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
971	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
972	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
973	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
974	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
975	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
976	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
977	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
978	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
979	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
980	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
981	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
982	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
983	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
984	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
985	#endif
986
987	LogRel(("VMSVGA3d: Capabilities:\n"));
988	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
989	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
990	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
991	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
992	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
993	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
994	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
995	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
996	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
997	pState->caps.maxFragmentShaderTemps,
998	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
999	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1000	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1001	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1002
1003
1004	/* Initialize the shader library. */
1005	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1006	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1007	rc = ShaderInitLib(&pState->ShaderIf);
1008	AssertRC(rc);
1009
1010	/* Cleanup */
1011	rc = vmsvga3dContextDestroy(pThis, 1);
1012	AssertRC(rc);
1013	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1014	rc = vmsvga3dContextDestroy(pThis, 2);
1015	AssertRC(rc);
1016	#endif
1017
1018	if ( pState->rsGLVersion < 3.0
1019	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1020	{
1021	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1022	return VERR_NOT_IMPLEMENTED;
1023	}
1024	if ( !pState->ext.glIsRenderbuffer
1025	\|\| !pState->ext.glBindRenderbuffer
1026	\|\| !pState->ext.glDeleteRenderbuffers
1027	\|\| !pState->ext.glGenRenderbuffers
1028	\|\| !pState->ext.glRenderbufferStorage
1029	\|\| !pState->ext.glGetRenderbufferParameteriv
1030	\|\| !pState->ext.glIsFramebuffer
1031	\|\| !pState->ext.glBindFramebuffer
1032	\|\| !pState->ext.glDeleteFramebuffers
1033	\|\| !pState->ext.glGenFramebuffers
1034	\|\| !pState->ext.glCheckFramebufferStatus
1035	\|\| !pState->ext.glFramebufferTexture1D
1036	\|\| !pState->ext.glFramebufferTexture2D
1037	\|\| !pState->ext.glFramebufferTexture3D
1038	\|\| !pState->ext.glFramebufferRenderbuffer
1039	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1040	\|\| !pState->ext.glGenerateMipmap
1041	\|\| !pState->ext.glBlitFramebuffer
1042	\|\| !pState->ext.glRenderbufferStorageMultisample
1043	\|\| !pState->ext.glFramebufferTextureLayer)
1044	{
1045	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1046	return VERR_NOT_IMPLEMENTED;
1047	}
1048
1049	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1050	pState->idTestContext = SVGA_ID_INVALID;
1051	#endif
1052	return VINF_SUCCESS;
1053	}
1054
1055	int vmsvga3dReset(PVGASTATE pThis)
1056	{
1057	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1058	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1059
1060	/* Destroy all leftover surfaces. */
1061	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1062	{
1063	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1064	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1065	}
1066
1067	/* Destroy all leftover contexts. */
1068	for (uint32_t i = 0; i < pState->cContexts; i++)
1069	{
1070	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1071	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1072	}
1073
1074	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1075	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1076
1077	return VINF_SUCCESS;
1078	}
1079
1080	int vmsvga3dTerminate(PVGASTATE pThis)
1081	{
1082	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1083	AssertReturn(pState, VERR_WRONG_ORDER);
1084	int rc;
1085
1086	rc = vmsvga3dReset(pThis);
1087	AssertRCReturn(rc, rc);
1088
1089	/* Terminate the shader library. */
1090	rc = ShaderDestroyLib();
1091	AssertRC(rc);
1092
1093	#ifdef RT_OS_WINDOWS
1094	/* Terminate the window creation thread. */
1095	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1096	AssertRCReturn(rc, rc);
1097
1098	RTSemEventDestroy(pState->WndRequestSem);
1099	#elif defined(RT_OS_DARWIN)
1100
1101	#elif defined(RT_OS_LINUX)
1102	/* signal to the thread that it is supposed to exit */
1103	pState->bTerminate = true;
1104	/* wait for it to terminate */
1105	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1106	AssertRC(rc);
1107	XCloseDisplay(pState->display);
1108	#endif
1109
1110	RTStrFree(pState->pszExtensions);
1111	pState->pszExtensions = NULL;
1112	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1113	RTStrFree(pState->pszOtherExtensions);
1114	#endif
1115	pState->pszOtherExtensions = NULL;
1116
1117	return VINF_SUCCESS;
1118	}
1119
1120
1121	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1122	{
1123	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1124	* redraw it. */
1125
1126	#ifdef RT_OS_DARWIN
1127	RT_NOREF(pOldViewport);
1128	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1129	if ( pState
1130	&& idScreen == 0
1131	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1132	{
1133	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1134	}
1135	#else
1136	RT_NOREF(pThis, idScreen, pOldViewport);
1137	#endif
1138	}
1139
1140
1141	/**
1142	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1143	* given surface format capability.
1144	*
1145	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1146	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1147	*
1148	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1149	* of implicit guest expectations:
1150	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1151	*/
1152	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1153	{
1154	uint32_t result = 0;
1155
1156	/** @todo missing:
1157	*
1158	* SVGA3DFORMAT_OP_PIXELSIZE
1159	*/
1160
1161	switch (idx3dCaps)
1162	{
1163	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1164	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1165	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1166	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1167	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1168	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1169	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1170	break;
1171
1172	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1173	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1174	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1175	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1176	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1177	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1178	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1179	break;
1180	}
1181
1182	/** @todo check hardware caps! */
1183	switch (idx3dCaps)
1184	{
1185	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1186	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1187	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1188	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1189	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1190	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1191	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1192	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1193	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1194	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1195	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1196	result \|= SVGA3DFORMAT_OP_TEXTURE
1197	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1198	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1199	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1200	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1201	\| SVGA3DFORMAT_OP_CUBETEXTURE
1202	\| SVGA3DFORMAT_OP_SRGBREAD
1203	\| SVGA3DFORMAT_OP_SRGBWRITE;
1204	break;
1205
1206	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1207	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1208	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1209	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1210	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1211	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1212	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1213	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1214	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1215	break;
1216
1217	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1218	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1219	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1220	result \|= SVGA3DFORMAT_OP_TEXTURE
1221	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1222	\| SVGA3DFORMAT_OP_CUBETEXTURE
1223	\| SVGA3DFORMAT_OP_SRGBREAD;
1224	break;
1225
1226	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1227	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1228	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1229	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1230	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1231	break;
1232
1233	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1234	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1235	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1236	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1237	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1238	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1239	break;
1240
1241	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1242	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1243	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1244
1245	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1246	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1247	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1248	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1249	break;
1250	}
1251	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1252
1253	return result;
1254	}
1255
1256	#if 0 /* unused */
1257	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1258	{
1259	RT_NOREF(pState3D, idx3dCaps);
1260
1261	/** @todo test this somehow */
1262	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1263
1264	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1265	return result;
1266	}
1267	#endif
1268
1269
1270	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1271	{
1272	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1273	AssertReturn(pState, VERR_NO_MEMORY);
1274	int rc = VINF_SUCCESS;
1275
1276	*pu32Val = 0;
1277
1278	/*
1279	* The capabilities access by current (2015-03-01) linux sources (gallium,
1280	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1281	* aren't access.
1282	*/
1283
1284	switch (idx3dCaps)
1285	{
1286	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1287	case SVGA3D_DEVCAP_3D:
1288	pu32Val = 1; / boolean? */
1289	break;
1290
1291	case SVGA3D_DEVCAP_MAX_LIGHTS:
1292	*pu32Val = pState->caps.maxActiveLights;
1293	break;
1294
1295	case SVGA3D_DEVCAP_MAX_TEXTURES:
1296	*pu32Val = pState->caps.maxTextures;
1297	break;
1298
1299	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1300	*pu32Val = pState->caps.maxClipDistances;
1301	break;
1302
1303	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1304	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1305	*pu32Val = pState->caps.vertexShaderVersion;
1306	break;
1307
1308	case SVGA3D_DEVCAP_VERTEX_SHADER:
1309	/* boolean? */
1310	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1311	break;
1312
1313	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1314	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1315	*pu32Val = pState->caps.fragmentShaderVersion;
1316	break;
1317
1318	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1319	/* boolean? */
1320	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1321	break;
1322
1323	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1324	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1325	/* Must be obsolete by now; surface format caps specify the same thing. */
1326	rc = VERR_INVALID_PARAMETER;
1327	break;
1328
1329	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1330	break;
1331
1332	/*
1333	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1334	* return TRUE. Even on physical hardware that does not support
1335	* these formats natively, the SVGA3D device will provide an emulation
1336	* which should be invisible to the guest OS.
1337	*/
1338	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1339	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1340	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1341	*pu32Val = 1;
1342	break;
1343
1344	case SVGA3D_DEVCAP_QUERY_TYPES:
1345	break;
1346
1347	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1348	break;
1349
1350	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1351	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1352	AssertCompile(sizeof(uint32_t) == sizeof(float));
1353	(float )pu32Val = pState->caps.flPointSize[1];
1354	break;
1355
1356	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1357	/** @todo ?? */
1358	rc = VERR_INVALID_PARAMETER;
1359	break;
1360
1361	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1362	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1363	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1364	*pu32Val = pState->caps.maxRectangleTextureSize;
1365	break;
1366
1367	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1368	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1369	//*pu32Val = pCaps->MaxVolumeExtent;
1370	*pu32Val = 256;
1371	break;
1372
1373	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1374	pu32Val = 32768; / hardcoded in Wine */
1375	break;
1376
1377	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1378	//*pu32Val = pCaps->MaxTextureAspectRatio;
1379	break;
1380
1381	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1382	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1383	*pu32Val = pState->caps.maxTextureAnisotropy;
1384	break;
1385
1386	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1387	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1388	pu32Val = 0xFFFFF; / hardcoded in Wine */
1389	break;
1390
1391	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1392	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1393	*pu32Val = pState->caps.maxVertexShaderInstructions;
1394	break;
1395
1396	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1397	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1398	break;
1399
1400	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1401	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1402	*pu32Val = pState->caps.maxVertexShaderTemps;
1403	break;
1404
1405	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1406	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1407	*pu32Val = pState->caps.maxFragmentShaderTemps;
1408	break;
1409
1410	case SVGA3D_DEVCAP_TEXTURE_OPS:
1411	break;
1412
1413	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1414	break;
1415
1416	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1417	break;
1418
1419	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1420	break;
1421
1422	case SVGA3D_DEVCAP_SUPERSAMPLE:
1423	break;
1424
1425	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1426	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1427	break;
1428
1429	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1430	break;
1431
1432	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1433	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1434	*pu32Val = pState->caps.maxColorAttachments;
1435	break;
1436
1437	/*
1438	* This is the maximum number of SVGA context IDs that the guest
1439	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1440	*/
1441	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1442	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1443	break;
1444
1445	/*
1446	* This is the maximum number of SVGA surface IDs that the guest
1447	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1448	*/
1449	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1450	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1451	break;
1452
1453	#if 0 /* Appeared more recently, not yet implemented. */
1454	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1455	case SVGA3D_DEVCAP_LINE_AA:
1456	break;
1457	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1458	case SVGA3D_DEVCAP_LINE_STIPPLE:
1459	break;
1460	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1461	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1462	break;
1463	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1464	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1465	break;
1466	#endif
1467
1468	/*
1469	* Supported surface formats.
1470	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1471	*/
1472	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1473	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1474	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1475	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1476	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1477	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1478	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1479	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1480	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1481	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1482	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1483	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1484	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1485	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1486	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1487	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1488	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1489	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1490	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1491	break;
1492
1493	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1494	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1495	pu32Val = 0; / apparently not supported in OpenGL */
1496	break;
1497
1498	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1499	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1500	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1501	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1502	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1503	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1504	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1505	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1506	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1507	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1508	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1509	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1510	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1511	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1512	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1513	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1514	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1515	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1516	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1517	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1518	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1519	break;
1520
1521	/* Linux: Not referenced in current sources. */
1522	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1523	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1524	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1525	rc = VERR_INVALID_PARAMETER;
1526	*pu32Val = 0;
1527	break;
1528
1529	default:
1530	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1531	rc = VERR_INVALID_PARAMETER;
1532	break;
1533	}
1534
1535	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1536	return rc;
1537	}
1538
1539	/**
1540	* Convert SVGA format value to its OpenGL equivalent
1541	*
1542	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1543	* help from wined3dformat_from_d3dformat().
1544	*/
1545	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1546	{
1547	switch (format)
1548	{
1549	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1550	pSurface->internalFormatGL = GL_RGB8;
1551	pSurface->formatGL = GL_BGRA;
1552	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1553	break;
1554	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1555	pSurface->internalFormatGL = GL_RGBA8;
1556	pSurface->formatGL = GL_BGRA;
1557	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1558	break;
1559	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1560	pSurface->internalFormatGL = GL_RGB5;
1561	pSurface->formatGL = GL_RGB;
1562	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1563	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1564	break;
1565	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1566	pSurface->internalFormatGL = GL_RGB5;
1567	pSurface->formatGL = GL_BGRA;
1568	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1569	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1570	break;
1571	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1572	pSurface->internalFormatGL = GL_RGB5_A1;
1573	pSurface->formatGL = GL_BGRA;
1574	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1575	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1576	break;
1577	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1578	pSurface->internalFormatGL = GL_RGBA4;
1579	pSurface->formatGL = GL_BGRA;
1580	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1581	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1582	break;
1583
1584	case SVGA3D_R8G8B8A8_UNORM:
1585	pSurface->internalFormatGL = GL_RGBA8;
1586	pSurface->formatGL = GL_RGBA;
1587	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1588	break;
1589
1590	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1591	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1592	pSurface->formatGL = GL_DEPTH_COMPONENT;
1593	pSurface->typeGL = GL_UNSIGNED_INT;
1594	break;
1595	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1596	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1597	pSurface->formatGL = GL_DEPTH_COMPONENT;
1598	pSurface->typeGL = GL_UNSIGNED_SHORT;
1599	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1600	break;
1601	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1602	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1603	pSurface->formatGL = GL_DEPTH_STENCIL;
1604	pSurface->typeGL = GL_UNSIGNED_INT;
1605	break;
1606	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1607	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1608	pSurface->formatGL = GL_DEPTH_STENCIL;
1609	pSurface->typeGL = GL_UNSIGNED_SHORT;
1610	/** @todo Wine sources hints at no hw support for this, so test this one! */
1611	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1612	break;
1613	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1614	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1615	pSurface->formatGL = GL_DEPTH_COMPONENT;
1616	pSurface->typeGL = GL_UNSIGNED_INT;
1617	break;
1618
1619	/* Advanced D3D9 depth formats. */
1620	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1621	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1622	pSurface->formatGL = GL_DEPTH_COMPONENT;
1623	pSurface->typeGL = GL_FLOAT;
1624	break;
1625
1626	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1627	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1628	pSurface->formatGL = GL_DEPTH_COMPONENT;
1629	pSurface->typeGL = GL_FLOAT; /* ??? */
1630	break;
1631
1632	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1633	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1634	pSurface->formatGL = GL_DEPTH_STENCIL;
1635	pSurface->typeGL = GL_INT; /* ??? */
1636	break;
1637
1638	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1639	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1640	#if 0
1641	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1642	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1643	#else /* wine suggests: */
1644	pSurface->formatGL = GL_RGBA;
1645	pSurface->typeGL = GL_UNSIGNED_BYTE;
1646	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1647	#endif
1648	break;
1649
1650	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1651	AssertMsgFailed(("Test me - SVGA3D_DXT2\n"));
1652	break;
1653
1654	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1655	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1656	#if 0 /** @todo this needs testing... */
1657	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1658	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1659	#else /* wine suggests: */
1660	pSurface->formatGL = GL_RGBA;
1661	pSurface->typeGL = GL_UNSIGNED_BYTE;
1662	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1663	#endif
1664	break;
1665
1666	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1667	AssertMsgFailed(("Test me - SVGA3D_DXT4\n"));
1668	break;
1669
1670	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1671	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1672	#if 0 /** @todo this needs testing... */
1673	pSurface->formatGL = GL_RGBA_S3TC;
1674	pSurface->typeGL = GL_UNSIGNED_INT;
1675	#else /* wine suggests: */
1676	pSurface->formatGL = GL_RGBA;
1677	pSurface->typeGL = GL_UNSIGNED_BYTE;
1678	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1679	#endif
1680	break;
1681
1682	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1683	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1684	pSurface->formatGL = GL_LUMINANCE;
1685	pSurface->typeGL = GL_UNSIGNED_BYTE;
1686	break;
1687
1688	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1689	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1690	pSurface->formatGL = GL_LUMINANCE;
1691	pSurface->typeGL = GL_UNSIGNED_SHORT;
1692	break;
1693
1694	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1695	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1696	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1697	pSurface->typeGL = GL_UNSIGNED_BYTE;
1698	break;
1699
1700	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1701	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1702	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1703	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1704	break;
1705
1706	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1707	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1708	pSurface->formatGL = GL_ALPHA;
1709	pSurface->typeGL = GL_UNSIGNED_BYTE;
1710	break;
1711
1712	#if 0
1713
1714	/* Bump-map formats */
1715	case SVGA3D_BUMPU8V8:
1716	return D3DFMT_V8U8;
1717	case SVGA3D_BUMPL6V5U5:
1718	return D3DFMT_L6V5U5;
1719	case SVGA3D_BUMPX8L8V8U8:
1720	return D3DFMT_X8L8V8U8;
1721	case SVGA3D_BUMPL8V8U8:
1722	/* No corresponding D3D9 equivalent. */
1723	AssertFailedReturn(D3DFMT_UNKNOWN);
1724	/* signed bump-map formats */
1725	case SVGA3D_V8U8:
1726	return D3DFMT_V8U8;
1727	case SVGA3D_Q8W8V8U8:
1728	return D3DFMT_Q8W8V8U8;
1729	case SVGA3D_CxV8U8:
1730	return D3DFMT_CxV8U8;
1731	/* mixed bump-map formats */
1732	case SVGA3D_X8L8V8U8:
1733	return D3DFMT_X8L8V8U8;
1734	case SVGA3D_A2W10V10U10:
1735	return D3DFMT_A2W10V10U10;
1736	#endif
1737
1738	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1739	pSurface->internalFormatGL = GL_RGBA16F;
1740	pSurface->formatGL = GL_RGBA;
1741	#if 0 /* bird: wine uses half float, sounds correct to me... */
1742	pSurface->typeGL = GL_FLOAT;
1743	#else
1744	pSurface->typeGL = GL_HALF_FLOAT;
1745	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1746	#endif
1747	break;
1748
1749	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1750	pSurface->internalFormatGL = GL_RGBA32F;
1751	pSurface->formatGL = GL_RGBA;
1752	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1753	break;
1754
1755	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1756	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1757	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1758	pSurface->formatGL = GL_RGBA;
1759	#else
1760	pSurface->formatGL = GL_BGRA;
1761	#endif
1762	pSurface->typeGL = GL_UNSIGNED_INT;
1763	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1764	break;
1765
1766
1767	/* Single- and dual-component floating point formats */
1768	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1769	pSurface->internalFormatGL = GL_R16F;
1770	pSurface->formatGL = GL_RED;
1771	#if 0 /* bird: wine uses half float, sounds correct to me... */
1772	pSurface->typeGL = GL_FLOAT;
1773	#else
1774	pSurface->typeGL = GL_HALF_FLOAT;
1775	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1776	#endif
1777	break;
1778	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1779	pSurface->internalFormatGL = GL_R32F;
1780	pSurface->formatGL = GL_RG;
1781	pSurface->typeGL = GL_FLOAT;
1782	break;
1783	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1784	pSurface->internalFormatGL = GL_RG16F;
1785	pSurface->formatGL = GL_RG;
1786	#if 0 /* bird: wine uses half float, sounds correct to me... */
1787	pSurface->typeGL = GL_FLOAT;
1788	#else
1789	pSurface->typeGL = GL_HALF_FLOAT;
1790	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1791	#endif
1792	break;
1793	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1794	pSurface->internalFormatGL = GL_RG32F;
1795	pSurface->formatGL = GL_RG;
1796	pSurface->typeGL = GL_FLOAT;
1797	break;
1798
1799	/*
1800	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1801	* the most efficient format to use when creating new surfaces
1802	* expressly for index or vertex data.
1803	*/
1804	case SVGA3D_BUFFER:
1805	pSurface->internalFormatGL = -1;
1806	pSurface->formatGL = -1;
1807	pSurface->typeGL = -1;
1808	break;
1809
1810	#if 0
1811	return D3DFMT_UNKNOWN;
1812
1813	case SVGA3D_V16U16:
1814	return D3DFMT_V16U16;
1815	#endif
1816
1817	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1818	pSurface->internalFormatGL = GL_RG16;
1819	pSurface->formatGL = GL_RG;
1820	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1821	pSurface->typeGL = GL_UNSIGNED_INT;
1822	#else
1823	pSurface->typeGL = GL_UNSIGNED_SHORT;
1824	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1825	#endif
1826	break;
1827
1828	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1829	pSurface->internalFormatGL = GL_RGBA16;
1830	pSurface->formatGL = GL_RGBA;
1831	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1832	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1833	#else
1834	pSurface->typeGL = GL_UNSIGNED_SHORT;
1835	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1836	#endif
1837	break;
1838
1839	#if 0
1840	/* Packed Video formats */
1841	case SVGA3D_UYVY:
1842	return D3DFMT_UYVY;
1843	case SVGA3D_YUY2:
1844	return D3DFMT_YUY2;
1845
1846	/* Planar video formats */
1847	case SVGA3D_NV12:
1848	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1849
1850	/* Video format with alpha */
1851	case SVGA3D_AYUV:
1852	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1853
1854	case SVGA3D_BC4_UNORM:
1855	case SVGA3D_BC5_UNORM:
1856	/* Unknown; only in DX10 & 11 */
1857	break;
1858	#endif
1859	default:
1860	AssertMsgFailed(("Unsupported format %d\n", format));
1861	break;
1862	}
1863	}
1864
1865
1866	#if 0
1867	/**
1868	* Convert SVGA multi sample count value to its D3D equivalent
1869	*/
1870	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1871	{
1872	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1873	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1874
1875	if (multisampleCount > 16)
1876	return D3DMULTISAMPLE_NONE;
1877
1878	/** @todo exact same mapping as d3d? */
1879	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1880	}
1881	#endif
1882
1883	/**
1884	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1885	*
1886	* @param pState The VMSVGA3d state.
1887	* @param pSurface The surface being destroyed.
1888	*/
1889	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1890	{
1891	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1892	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1893
1894	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1895	{
1896	case SVGA3D_SURFACE_CUBEMAP:
1897	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1898	break;
1899
1900	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1901	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1902	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1903	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1904	{
1905	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1906	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1907	}
1908	break;
1909
1910	case SVGA3D_SURFACE_HINT_TEXTURE:
1911	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1912	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1913	{
1914	glDeleteTextures(1, &pSurface->oglId.texture);
1915	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1916	}
1917	break;
1918
1919	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1920	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1921	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1922	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1923	{
1924	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1925	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1926	}
1927	break;
1928
1929	default:
1930	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1931	break;
1932	}
1933	}
1934
1935
1936	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1937	{
1938	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1939	uint32_t sidSrc = src.sid;
1940	uint32_t sidDest = dest.sid;
1941	int rc = VINF_SUCCESS;
1942
1943	AssertReturn(pState, VERR_NO_MEMORY);
1944	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1945	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1946	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1947	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1948
1949	for (uint32_t i = 0; i < cCopyBoxes; i++)
1950	{
1951	SVGA3dBox destBox, srcBox;
1952
1953	srcBox.x = pBox[i].srcx;
1954	srcBox.y = pBox[i].srcy;
1955	srcBox.z = pBox[i].srcz;
1956	srcBox.w = pBox[i].w;
1957	srcBox.h = pBox[i].h;
1958	srcBox.d = pBox[i].d;
1959
1960	destBox.x = pBox[i].x;
1961	destBox.y = pBox[i].y;
1962	destBox.z = pBox[i].z;
1963	destBox.w = pBox[i].w;
1964	destBox.h = pBox[i].h;
1965	destBox.d = pBox[i].d;
1966
1967	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1968	AssertRCReturn(rc, rc);
1969	}
1970	return VINF_SUCCESS;
1971	}
1972
1973
1974	/**
1975	* Save texture unpacking parameters and loads those appropriate for the given
1976	* surface.
1977	*
1978	* @param pState The VMSVGA3D state structure.
1979	* @param pContext The active context.
1980	* @param pSurface The surface.
1981	* @param pSave Where to save stuff.
1982	*/
1983	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1984	PVMSVGAPACKPARAMS pSave)
1985	{
1986	RT_NOREF(pState);
1987
1988	/*
1989	* Save (ignore errors, setting the defaults we want and avoids restore).
1990	*/
1991	pSave->iAlignment = 1;
1992	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1993	pSave->cxRow = 0;
1994	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1995
1996	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1997	pSave->cyImage = 0;
1998	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1999	Assert(pSave->cyImage == 0);
2000
2001	pSave->fSwapBytes = GL_FALSE;
2002	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2003	Assert(pSave->fSwapBytes == GL_FALSE);
2004
2005	pSave->fLsbFirst = GL_FALSE;
2006	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2007	Assert(pSave->fLsbFirst == GL_FALSE);
2008
2009	pSave->cSkipRows = 0;
2010	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2011	Assert(pSave->cSkipRows == 0);
2012
2013	pSave->cSkipPixels = 0;
2014	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2015	Assert(pSave->cSkipPixels == 0);
2016
2017	pSave->cSkipImages = 0;
2018	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2019	Assert(pSave->cSkipImages == 0);
2020
2021	VMSVGA3D_CLEAR_GL_ERRORS();
2022	#endif
2023
2024	/*
2025	* Setup unpack.
2026	*
2027	* Note! We use 1 as alignment here because we currently don't do any
2028	* aligning of line pitches anywhere.
2029	*/
2030	NOREF(pSurface);
2031	if (pSave->iAlignment != 1)
2032	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2033	if (pSave->cxRow != 0)
2034	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2035	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2036	if (pSave->cyImage != 0)
2037	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2038	if (pSave->fSwapBytes != 0)
2039	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2040	if (pSave->fLsbFirst != 0)
2041	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2042	if (pSave->cSkipRows != 0)
2043	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2044	if (pSave->cSkipPixels != 0)
2045	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2046	if (pSave->cSkipImages != 0)
2047	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2048	#endif
2049	}
2050
2051
2052	/**
2053	* Restores texture unpacking parameters.
2054	*
2055	* @param pState The VMSVGA3D state structure.
2056	* @param pContext The active context.
2057	* @param pSurface The surface.
2058	* @param pSave Where stuff was saved.
2059	*/
2060	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2061	PCVMSVGAPACKPARAMS pSave)
2062	{
2063	RT_NOREF(pState, pSurface);
2064
2065	if (pSave->iAlignment != 1)
2066	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2067	if (pSave->cxRow != 0)
2068	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2069	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2070	if (pSave->cyImage != 0)
2071	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2072	if (pSave->fSwapBytes != 0)
2073	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2074	if (pSave->fLsbFirst != 0)
2075	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2076	if (pSave->cSkipRows != 0)
2077	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2078	if (pSave->cSkipPixels != 0)
2079	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2080	if (pSave->cSkipImages != 0)
2081	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2082	#endif
2083	}
2084
2085
2086	/**
2087	* Create D3D/OpenGL texture object for the specified surface.
2088	*
2089	* Surfaces are created when needed.
2090	*
2091	* @param pState The VMSVGA3d state.
2092	* @param pContext The context.
2093	* @param idAssociatedContext Probably the same as pContext->id.
2094	* @param pSurface The surface to create the texture for.
2095	*/
2096	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2097	PVMSVGA3DSURFACE pSurface)
2098	{
2099	RT_NOREF(idAssociatedContext);
2100	GLint activeTexture = 0;
2101	uint32_t idPrevCtx = pState->idActiveContext;
2102	pContext = &pState->SharedCtx;
2103	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2104
2105	glGenTextures(1, &pSurface->oglId.texture);
2106	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2107	/** @todo Set the mip map generation filter settings. */
2108
2109	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2111
2112	/* Must bind texture to the current context in order to change it. */
2113	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2114	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2115
2116	/* Set the unpacking parameters. */
2117	VMSVGAPACKPARAMS SavedParams;
2118	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2119
2120	/* Set the mipmap base and max level parameters. */
2121	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2123	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2125
2126	if (pSurface->fDirty)
2127	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2128
2129	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2130	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2131	{
2132	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2133	exposing random host memory to the guest and helps a with the fedora 21 surface
2134	corruption issues (launchpad, background, search field, login). */
2135	if (pSurface->pMipmapLevels[i].fDirty)
2136	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2137
2138	glTexImage2D(GL_TEXTURE_2D,
2139	i,
2140	pSurface->internalFormatGL,
2141	pSurface->pMipmapLevels[i].mipmapSize.width,
2142	pSurface->pMipmapLevels[i].mipmapSize.height,
2143	0,
2144	pSurface->formatGL,
2145	pSurface->typeGL,
2146	pSurface->pMipmapLevels[i].pSurfaceData);
2147
2148	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2149
2150	pSurface->pMipmapLevels[i].fDirty = false;
2151	}
2152	pSurface->fDirty = false;
2153
2154	/* Restore unpacking parameters. */
2155	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2156
2157	/* Restore the old active texture. */
2158	glBindTexture(GL_TEXTURE_2D, activeTexture);
2159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2160
2161	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2162
2163	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2164	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2165	return VINF_SUCCESS;
2166	}
2167
2168
2169	/**
2170	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2171	*
2172	* @returns VBox status code.
2173	* @param pThis The VGA device instance.
2174	* @param pState The VMSVGA3d state.
2175	* @param pDstSurface The destination host surface.
2176	* @param uDstFace The destination face (valid).
2177	* @param uDstMipmap The destination mipmap level (valid).
2178	* @param pDstBox The destination box.
2179	* @param pSrcSurface The source host surface.
2180	* @param uSrcFace The destination face (valid).
2181	* @param uSrcMipmap The source mimap level (valid).
2182	* @param pSrcBox The source box.
2183	* @param enmMode The strecht blt mode .
2184	* @param pContext The VMSVGA3d context (already current for OGL).
2185	*/
2186	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2187	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2188	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2189	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2190	{
2191	RT_NOREF(pThis);
2192	RT_NOREF2(uDstFace, uSrcFace); /// @todo
2193
2194	/* Activate the read and draw framebuffer objects. */
2195	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2197	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2198	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2199
2200	/* Bind the source and destination objects to the right place. */
2201	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2202	pSrcSurface->oglId.texture, uSrcMipmap);
2203	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2204	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2205	pDstSurface->oglId.texture, uDstMipmap);
2206	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2207
2208	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),
2209	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2210	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2211
2212	pState->ext.glBlitFramebuffer(pSrcBox->x,
2213	#ifdef MANUAL_FLIP_SURFACE_DATA
2214	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2215	#else
2216	pSrcBox->y,
2217	#endif
2218	pSrcBox->x + pSrcBox->w, /* exclusive. */
2219	#ifdef MANUAL_FLIP_SURFACE_DATA
2220	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2221	#else
2222	pSrcBox->y + pSrcBox->h,
2223	#endif
2224	pDstBox->x,
2225	#ifdef MANUAL_FLIP_SURFACE_DATA
2226	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2227	#else
2228	pDstBox->y,
2229	#endif
2230	pDstBox->x + pDstBox->w, /* exclusive. */
2231	#ifdef MANUAL_FLIP_SURFACE_DATA
2232	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2233	#else
2234	pDstBox->y + pDstBox->h,
2235	#endif
2236	GL_COLOR_BUFFER_BIT,
2237	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2238	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2239
2240	/* Reset the frame buffer association */
2241	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2242	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2243
2244	return VINF_SUCCESS;
2245	}
2246
2247	/**
2248	* Save texture packing parameters and loads those appropriate for the given
2249	* surface.
2250	*
2251	* @param pState The VMSVGA3D state structure.
2252	* @param pContext The active context.
2253	* @param pSurface The surface.
2254	* @param pSave Where to save stuff.
2255	*/
2256	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2257	PVMSVGAPACKPARAMS pSave)
2258	{
2259	RT_NOREF(pState);
2260	/*
2261	* Save (ignore errors, setting the defaults we want and avoids restore).
2262	*/
2263	pSave->iAlignment = 1;
2264	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2265	pSave->cxRow = 0;
2266	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2267
2268	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2269	pSave->cyImage = 0;
2270	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2271	Assert(pSave->cyImage == 0);
2272
2273	pSave->fSwapBytes = GL_FALSE;
2274	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2275	Assert(pSave->fSwapBytes == GL_FALSE);
2276
2277	pSave->fLsbFirst = GL_FALSE;
2278	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2279	Assert(pSave->fLsbFirst == GL_FALSE);
2280
2281	pSave->cSkipRows = 0;
2282	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2283	Assert(pSave->cSkipRows == 0);
2284
2285	pSave->cSkipPixels = 0;
2286	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2287	Assert(pSave->cSkipPixels == 0);
2288
2289	pSave->cSkipImages = 0;
2290	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2291	Assert(pSave->cSkipImages == 0);
2292
2293	VMSVGA3D_CLEAR_GL_ERRORS();
2294	#endif
2295
2296	/*
2297	* Setup unpack.
2298	*
2299	* Note! We use 1 as alignment here because we currently don't do any
2300	* aligning of line pitches anywhere.
2301	*/
2302	NOREF(pSurface);
2303	if (pSave->iAlignment != 1)
2304	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2305	if (pSave->cxRow != 0)
2306	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2307	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2308	if (pSave->cyImage != 0)
2309	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2310	if (pSave->fSwapBytes != 0)
2311	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2312	if (pSave->fLsbFirst != 0)
2313	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2314	if (pSave->cSkipRows != 0)
2315	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2316	if (pSave->cSkipPixels != 0)
2317	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2318	if (pSave->cSkipImages != 0)
2319	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2320	#endif
2321	}
2322
2323
2324	/**
2325	* Restores texture packing parameters.
2326	*
2327	* @param pState The VMSVGA3D state structure.
2328	* @param pContext The active context.
2329	* @param pSurface The surface.
2330	* @param pSave Where stuff was saved.
2331	*/
2332	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2333	PCVMSVGAPACKPARAMS pSave)
2334	{
2335	RT_NOREF(pState, pSurface);
2336	if (pSave->iAlignment != 1)
2337	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2338	if (pSave->cxRow != 0)
2339	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2340	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2341	if (pSave->cyImage != 0)
2342	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2343	if (pSave->fSwapBytes != 0)
2344	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2345	if (pSave->fLsbFirst != 0)
2346	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2347	if (pSave->cSkipRows != 0)
2348	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2349	if (pSave->cSkipPixels != 0)
2350	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2351	if (pSave->cSkipImages != 0)
2352	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2353	#endif
2354	}
2355
2356
2357	/**
2358	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2359	*
2360	* @returns Failure status code or @a rc.
2361	* @param pThis The VGA device instance data.
2362	* @param pState The VMSVGA3d state.
2363	* @param pSurface The host surface.
2364	* @param pMipLevel Mipmap level. The caller knows it already.
2365	* @param uHostFace The host face (valid).
2366	* @param uHostMipmap The host mipmap level (valid).
2367	* @param GuestPtr The guest pointer.
2368	* @param cbGuestPitch The guest pitch.
2369	* @param transfer The transfer direction.
2370	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2371	* @param pContext The context (for OpenGL).
2372	* @param rc The current rc for all boxes.
2373	* @param iBox The current box number (for Direct 3D).
2374	*/
2375	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2376	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2377	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2378	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2379	{
2380	RT_NOREF(iBox);
2381	RT_NOREF(uHostFace); /// @todo
2382
2383	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2384	{
2385	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2386	case SVGA3D_SURFACE_HINT_TEXTURE:
2387	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2388	{
2389	uint32_t cbSurfacePitch;
2390	uint8_t *pDoubleBuffer;
2391	uint32_t offHst;
2392
2393	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2394	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2395
2396	if (transfer == SVGA3D_READ_HOST_VRAM)
2397	{
2398	GLint activeTexture;
2399
2400	/* Must bind texture to the current context in order to read it. */
2401	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2402	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2403
2404	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2405	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2406
2407	/* Set row length and alignment of the input data. */
2408	VMSVGAPACKPARAMS SavedParams;
2409	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2410
2411	glGetTexImage(GL_TEXTURE_2D,
2412	uHostMipmap,
2413	pSurface->formatGL,
2414	pSurface->typeGL,
2415	pDoubleBuffer);
2416	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2417
2418	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2419
2420	/* Restore the old active texture. */
2421	glBindTexture(GL_TEXTURE_2D, activeTexture);
2422	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2423
2424	offHst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2425	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2426
2427	#ifdef MANUAL_FLIP_SURFACE_DATA
2428	pBufferStart = pDoubleBuffer
2429	+ pBox->x * pSurface->cbBlock
2430	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2431	- cbSurfacePitch; /* flip image during copy */
2432	#else
2433	#endif
2434	}
2435	else
2436	{
2437	/* The buffer will contain only the copied rectangle. */
2438	offHst = 0;
2439	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2440	#ifdef MANUAL_FLIP_SURFACE_DATA
2441	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2442	#else
2443	#endif
2444	}
2445
2446	uint32_t const offGst = pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch; /// @todo compressed fmts
2447
2448	rc = vmsvgaGMRTransfer(pThis,
2449	transfer,
2450	pDoubleBuffer,
2451	pMipLevel->cbSurface,
2452	offHst,
2453	#ifdef MANUAL_FLIP_SURFACE_DATA
2454	-(int32_t)cbSurfacePitch,
2455	#else
2456	cbSurfacePitch,
2457	#endif
2458	GuestPtr,
2459	offGst,
2460	cbGuestPitch,
2461	pBox->w * pSurface->cbBlock,
2462	pBox->h);
2463	AssertRC(rc);
2464
2465	/* Update the opengl surface data. */
2466	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2467	{
2468	GLint activeTexture = 0;
2469
2470	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2471	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2472
2473	/* Must bind texture to the current context in order to change it. */
2474	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2475	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2476
2477	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2478
2479	/* Set row length and alignment of the input data. */
2480	VMSVGAPACKPARAMS SavedParams;
2481	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2482
2483	glTexSubImage2D(GL_TEXTURE_2D,
2484	uHostMipmap,
2485	pBox->x,
2486	pBox->y,
2487	pBox->w,
2488	pBox->h,
2489	pSurface->formatGL,
2490	pSurface->typeGL,
2491	pDoubleBuffer);
2492
2493	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2494
2495	/* Restore old values. */
2496	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2497
2498	/* Restore the old active texture. */
2499	glBindTexture(GL_TEXTURE_2D, activeTexture);
2500	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2501	}
2502
2503	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2504
2505	/* Free the double buffer. */
2506	RTMemFree(pDoubleBuffer);
2507	break;
2508	}
2509
2510	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2511	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2512	break;
2513
2514	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2515	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2516	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2517	{
2518	/* Caller already clipped pBox and buffers are 1-dimensional. */
2519	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2520
2521	VMSVGA3D_CLEAR_GL_ERRORS();
2522	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2523	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2524	{
2525	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2526	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2527	if (RT_LIKELY(pbData != NULL))
2528	{
2529	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2530	GLint cbStrictBufSize;
2531	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2532	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2533	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2534	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2535	#endif
2536	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2537	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2538	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2539	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2540
2541	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2542
2543	rc = vmsvgaGMRTransfer(pThis,
2544	transfer,
2545	pbData,
2546	pMipLevel->cbSurface,
2547	offHst,
2548	pMipLevel->cbSurfacePitch,
2549	GuestPtr,
2550	pBox->srcx * pSurface->cbBlock,
2551	cbGuestPitch,
2552	pBox->w * pSurface->cbBlock,
2553	pBox->h);
2554	AssertRC(rc);
2555
2556	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2557
2558	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2559	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2560	}
2561	else
2562	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2563	}
2564	else
2565	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2566	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2567	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2568	break;
2569	}
2570
2571	default:
2572	AssertFailed();
2573	break;
2574	}
2575
2576	return rc;
2577	}
2578
2579
2580	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2581	{
2582	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2583	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));
2584	for (uint32_t i = 0; i < cRects; i++)
2585	{
2586	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2587	}
2588
2589	/** @todo Only screen 0 for now. */
2590	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2591	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2592	/** @todo scaling */
2593	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2594
2595	if (cRects == 0)
2596	{
2597	/* easy case; no clipping */
2598	SVGA3dCopyBox box;
2599	SVGA3dGuestImage dst;
2600
2601	box.x = destRect.left;
2602	box.y = destRect.top;
2603	box.z = 0;
2604	box.w = destRect.right - destRect.left;
2605	box.h = destRect.bottom - destRect.top;
2606	box.d = 1;
2607	box.srcx = srcRect.left;
2608	box.srcy = srcRect.top;
2609	box.srcz = 0;
2610
2611	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2612	dst.ptr.offset = pThis->svga.uScreenOffset;
2613	dst.pitch = pThis->svga.cbScanline;
2614
2615	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2616	AssertRCReturn(rc, rc);
2617
2618	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2619	return VINF_SUCCESS;
2620	}
2621	else
2622	{
2623	SVGA3dGuestImage dst;
2624	SVGA3dCopyBox box;
2625
2626	box.srcz = 0;
2627	box.z = 0;
2628	box.d = 1;
2629
2630	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2631	dst.ptr.offset = pThis->svga.uScreenOffset;
2632	dst.pitch = pThis->svga.cbScanline;
2633
2634	/** @todo merge into one SurfaceDMA call */
2635	for (uint32_t i = 0; i < cRects; i++)
2636	{
2637	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2638	box.srcx = srcRect.left + pRect[i].left;
2639	box.srcy = srcRect.top + pRect[i].top;
2640
2641	box.x = pRect[i].left + destRect.left;
2642	box.y = pRect[i].top + destRect.top;
2643	box.z = 0;
2644	box.w = pRect[i].right - pRect[i].left;
2645	box.h = pRect[i].bottom - pRect[i].top;
2646
2647	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2648	AssertRCReturn(rc, rc);
2649
2650	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2651	}
2652
2653	return VINF_SUCCESS;
2654	}
2655	}
2656
2657	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2658	{
2659	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2660	PVMSVGA3DSURFACE pSurface;
2661	int rc = VINF_SUCCESS;
2662	PVMSVGA3DCONTEXT pContext;
2663	uint32_t cid;
2664	GLint activeTexture = 0;
2665
2666	AssertReturn(pState, VERR_NO_MEMORY);
2667	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2668	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2669
2670	pSurface = pState->papSurfaces[sid];
2671
2672	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2673	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2674	pSurface->autogenFilter = filter;
2675
2676	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2677
2678	cid = SVGA3D_INVALID_ID;
2679	pContext = &pState->SharedCtx;
2680	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2681
2682	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2683	{
2684	/* Unknown surface type; turn it into a texture. */
2685	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2686	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2687	AssertRCReturn(rc, rc);
2688	}
2689	else
2690	{
2691	/** @todo new filter */
2692	AssertFailed();
2693	}
2694
2695	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2696	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2697
2698	/* Must bind texture to the current context in order to change it. */
2699	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2700	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2701
2702	/* Generate the mip maps. */
2703	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2704	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2705
2706	/* Restore the old texture. */
2707	glBindTexture(GL_TEXTURE_2D, activeTexture);
2708	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2709
2710	return VINF_SUCCESS;
2711	}
2712
2713	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2714	{
2715	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2716	PVMSVGA3DSURFACE pSurface;
2717	PVMSVGA3DCONTEXT pContext;
2718	uint32_t cid;
2719
2720	AssertReturn(pState, VERR_NO_MEMORY);
2721	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2722	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2723
2724	pSurface = pState->papSurfaces[sid];
2725
2726	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2727	for (uint32_t i=0; i < cRects; i++)
2728	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));
2729
2730	pContext = &pState->SharedCtx;
2731	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2732	cid = pContext->id;
2733	VMSVGA3D_CLEAR_GL_ERRORS();
2734
2735	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2736	/*
2737	* Source surface different size?
2738	*/
2739	RTRECT2 srcViewPort;
2740	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2741	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2742	{
2743	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2744	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2745
2746	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2747	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2748	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2749	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2750
2751	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2752	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2753	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2754	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2755	}
2756	else
2757	{
2758	srcViewPort.x = pThis->svga.viewport.x;
2759	srcViewPort.y = pThis->svga.viewport.y;
2760	srcViewPort.cx = pThis->svga.viewport.cx;
2761	srcViewPort.cy = pThis->svga.viewport.cy;
2762	}
2763	RTRECT SrcViewPortRect;
2764	SrcViewPortRect.xLeft = srcViewPort.x;
2765	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2766	SrcViewPortRect.yBottom = srcViewPort.y;
2767	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2768	#endif
2769
2770
2771	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2772	/*
2773	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2774	*/
2775	SVGA3dCopyRect rect;
2776	uint32_t oldVShader, oldPShader;
2777	GLint oldTextureId;
2778
2779	if (cRects == 0)
2780	{
2781	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2782	rect.w = pSurface->pMipmapLevels[0].size.width;
2783	rect.h = pSurface->pMipmapLevels[0].size.height;
2784	pRect = &rect;
2785	cRects = 1;
2786	}
2787
2788	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2789
2790	#if 0
2791	glDisable(GL_CULL_FACE);
2792	glDisable(GL_BLEND);
2793	glDisable(GL_ALPHA_TEST);
2794	glDisable(GL_SCISSOR_TEST);
2795	glDisable(GL_STENCIL_TEST);
2796	glEnable(GL_DEPTH_TEST);
2797	glDepthFunc(GL_ALWAYS);
2798	glDepthMask(GL_TRUE);
2799	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2800	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2801	#endif
2802
2803	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2804
2805	oldVShader = pContext->state.shidVertex;
2806	oldPShader = pContext->state.shidPixel;
2807	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2808	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2809
2810	/* Flush shader changes. */
2811	if (pContext->pShaderContext)
2812	ShaderUpdateState(pContext->pShaderContext, 0);
2813
2814	/* Activate the read and draw framebuffer objects. */
2815	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2816	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2817
2818	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2819	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2820	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2821
2822	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2823	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2824
2825	#if 0
2826	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2827	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2828	#endif
2829
2830	/* Reset the transformation matrices. */
2831	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2832	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2833	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2834	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2835	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2836	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2837	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2838	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2839
2840	for (uint32_t i = 0; i < cRects; i++)
2841	{
2842	float left, right, top, bottom; /* Texture coordinates */
2843	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2844
2845	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2846	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2847	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2848	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2849	pRect[i].w = pThis->svga.viewport.cx;
2850	pRect[i].h = pThis->svga.viewport.cy;
2851
2852	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2853	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2854	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2855	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2856	{
2857	/* Intersection is empty; skip */
2858	continue;
2859	}
2860
2861	left = pRect[i].srcx;
2862	right = pRect[i].srcx + pRect[i].w;
2863	top = pRect[i].srcy + pRect[i].h;
2864	bottom = pRect[i].srcy;
2865
2866	left /= pSurface->pMipmapLevels[0].size.width;
2867	right /= pSurface->pMipmapLevels[0].size.width;
2868	top /= pSurface->pMipmapLevels[0].size.height;
2869	bottom /= pSurface->pMipmapLevels[0].size.height;
2870
2871	vertexLeft = pRect[i].x;
2872	vertexRight = pRect[i].x + pRect[i].w;
2873	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2874	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2875
2876	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2877	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2878	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)));
2879
2880	glBegin(GL_QUADS);
2881
2882	/* bottom left */
2883	glTexCoord2f(left, bottom);
2884	glVertex2i(vertexLeft, vertexBottom);
2885
2886	/* top left */
2887	glTexCoord2f(left, top);
2888	glVertex2i(vertexLeft, vertexTop);
2889
2890	/* top right */
2891	glTexCoord2f(right, top);
2892	glVertex2i(vertexRight, vertexTop);
2893
2894	/* bottom right */
2895	glTexCoord2f(right, bottom);
2896	glVertex2i(vertexRight, vertexBottom);
2897
2898	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2899	}
2900
2901	/* Restore old settings. */
2902	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2903	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2904	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2905	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2906
2907	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2908
2909	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2910	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2911	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2912
2913	#else
2914	/*
2915	* glBlitFramebuffer variant.
2916	*/
2917	/* Activate the read and draw framebuffer objects. */
2918	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2919	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2920	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2921	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2922
2923	/* Bind the source objects to the right place. */
2924	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2925	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2926
2927
2928	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2929	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2930	ASMCompilerBarrier(); /* paranoia */
2931	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2932
2933	/* If there are no recangles specified, just grab a screenful. */
2934	SVGA3dCopyRect DummyRect;
2935	if (cRects != 0)
2936	{ /* likely */ }
2937	else
2938	{
2939	/** @todo Find the usecase for this or check what the original device does.
2940	* The original code was doing some scaling based on the surface
2941	* size... */
2942	# ifdef DEBUG_bird
2943	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2944	# endif
2945	DummyRect.x = DummyRect.srcx = 0;
2946	DummyRect.y = DummyRect.srcy = 0;
2947	DummyRect.w = pThis->svga.uWidth;
2948	DummyRect.h = pThis->svga.uHeight;
2949	cRects = 1;
2950	pRect = &DummyRect;
2951	}
2952
2953	/*
2954	* Blit the surface rectangle(s) to the back buffer.
2955	*/
2956	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
2957	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
2958	for (uint32_t i = 0; i < cRects; i++)
2959	{
2960	SVGA3dCopyRect ClippedRect = pRect[i];
2961
2962	/*
2963	* Do some sanity checking and limit width and height, all so we
2964	* don't need to think about wrap-arounds below.
2965	*/
2966	if (RT_LIKELY( ClippedRect.w
2967	&& ClippedRect.x < VMSVGA_MAX_X
2968	&& ClippedRect.srcx < VMSVGA_MAX_X
2969	&& ClippedRect.h
2970	&& ClippedRect.y < VMSVGA_MAX_Y
2971	&& ClippedRect.srcy < VMSVGA_MAX_Y
2972	))
2973	{ /* likely */ }
2974	else
2975	continue;
2976
2977	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
2978	{ /* likely */ }
2979	else
2980	ClippedRect.w = VMSVGA_MAX_X;
2981	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
2982	{ /* likely */ }
2983	else
2984	ClippedRect.h = VMSVGA_MAX_Y;
2985
2986
2987	/*
2988	* Source surface clipping (paranoia). Straight forward.
2989	*/
2990	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2991	{ /* likely */ }
2992	else
2993	continue;
2994	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2995	{ /* likely */ }
2996	else
2997	{
2998	AssertFailed(); /* remove if annoying. */
2999	ClippedRect.w = cxSurface - ClippedRect.srcx;
3000	}
3001
3002	if (RT_LIKELY(ClippedRect.srcy < cySurface))
3003	{ /* likely */ }
3004	else
3005	continue;
3006	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
3007	{ /* likely */ }
3008	else
3009	{
3010	AssertFailed(); /* remove if annoying. */
3011	ClippedRect.h = cySurface - ClippedRect.srcy;
3012	}
3013
3014	/*
3015	* Destination viewport clipping - real PITA.
3016	*
3017	* We have to take the following into account here:
3018	* - The source image is Y inverted.
3019	* - The destination framebuffer is in world and not window coordinates,
3020	* just like the source surface. This means working in the first quadrant.
3021	* - The viewport is in window coordinate, that is fourth quadrant and
3022	* negated Y values.
3023	* - The destination framebuffer is not scrolled, so we have to blit
3024	* what's visible into the top of the framebuffer.
3025	*
3026	*
3027	* To illustrate:
3028	*
3029	* source destination 0123456789
3030	* 8 ^---------- 8 ^---------- 0 ----------->
3031	* 7 \| \| 7 \| \| 1 \| \|
3032	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
3033	* 5 \| *** \| 5 \| * \| 3 \| * \|
3034	* 4 \| * \| => 4 \| * \| => 4 \| * \|
3035	* 3 \| * \| 3 \| * \| 5 \| * \|
3036	* 2 \| ******* \| 2 \| \| 6 \| \|
3037	* 1 \| \| 1 \| \| 7 \| \|
3038	* 0 -----------> 0 -----------> 8 v----------
3039	* 0123456789 0123456789 Destination window
3040	*
3041	* From the above, it follows that a destination viewport given in
3042	* window coordinates matches the source exactly when srcy = srcx = 0.
3043	*
3044	* Example (Y only):
3045	* ySrc = 0
3046	* yDst = 0
3047	* cyCopy = 9
3048	* cyScreen = cyCopy
3049	* cySurface >= cyCopy
3050	* yViewport = 5
3051	* cyViewport = 2 (i.e. '\| *** \|'
3052	* '\| \|' )
3053	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3054	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3055	*
3056	* We can see from the illustration that the final result should be:
3057	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3058	* DstRect = (0,2) (11, 4)
3059	*
3060	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3061	* easier to follow:
3062	* SrcRect = (0,5) (11, 7)
3063	*
3064	* From the top, Y values only:
3065	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3066	*
3067	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3068	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3069	* Copy.yDst += cyAdjust = 2;
3070	* Copy.ySrc = unchanged;
3071	* Copy.cx -= cyAdjust = 7;
3072	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3073	*
3074	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3075	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3076	* Copy.yDst = unchanged;
3077	* Copy.ySrc += cyAdjust = 5;
3078	* Copy.cx -= cyAdjust = 2;
3079	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3080	*
3081	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3082	* when the view is resized, moved and otherwise messed with,
3083	* the visible part of the framebuffer is actually the bottom
3084	* one. It's easy to adjust for this, just have to adjust the
3085	* destination rectangle such that yBottom is zero.
3086	*/
3087	/* X - no inversion, so kind of simple. */
3088	if (ClippedRect.x >= DstViewport.x)
3089	{
3090	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3091	{ /* typical */ }
3092	else if (ClippedRect.x < DstViewport.xRight)
3093	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3094	else
3095	continue;
3096	}
3097	else
3098	{
3099	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3100	if (cxAdjust < ClippedRect.w)
3101	{
3102	ClippedRect.w -= cxAdjust;
3103	ClippedRect.x += cxAdjust;
3104	ClippedRect.srcx += cxAdjust;
3105	}
3106	else
3107	continue;
3108
3109	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3110	{ /* typical */ }
3111	else
3112	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3113	}
3114
3115	/* Y - complicated, see above. */
3116	if (ClippedRect.y >= DstViewport.yLowWC)
3117	{
3118	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3119	{ /* typical */ }
3120	else if (ClippedRect.y < DstViewport.yHighWC)
3121	{
3122	/* adjustment #2 */
3123	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3124	ClippedRect.srcy += cyAdjust;
3125	ClippedRect.h -= cyAdjust;
3126	}
3127	else
3128	continue;
3129	}
3130	else
3131	{
3132	/* adjustment #1 */
3133	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3134	if (cyAdjust < ClippedRect.h)
3135	{
3136	ClippedRect.y += cyAdjust;
3137	ClippedRect.h -= cyAdjust;
3138	}
3139	else
3140	continue;
3141
3142	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3143	{ /* typical */ }
3144	else
3145	{
3146	/* adjustment #2 */
3147	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3148	ClippedRect.srcy += cyAdjust;
3149	ClippedRect.h -= cyAdjust;
3150	}
3151	}
3152
3153	/* Calc source rectangle with y flipping wrt destination. */
3154	RTRECT SrcRect;
3155	SrcRect.xLeft = ClippedRect.srcx;
3156	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3157	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3158	SrcRect.yTop = ClippedRect.srcy;
3159
3160	/* Calc destination rectangle. */
3161	RTRECT DstRect;
3162	DstRect.xLeft = ClippedRect.x;
3163	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3164	DstRect.yBottom = ClippedRect.y;
3165	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3166
3167	/* Adjust for viewport. */
3168	DstRect.xLeft -= DstViewport.x;
3169	DstRect.xRight -= DstViewport.x;
3170	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3171	DstRect.yTop -= DstRect.yBottom;
3172	DstRect.yBottom = 0;
3173	# else
3174	DstRect.yBottom += DstViewport.y;
3175	DstRect.yTop += DstViewport.y;
3176	# endif
3177
3178	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3179	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3180	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3181	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3182	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3183	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3184	}
3185
3186	#endif
3187
3188	/*
3189	* Flip the front and back buffers.
3190	*/
3191	#ifdef RT_OS_WINDOWS
3192	BOOL fRef = SwapBuffers(pContext->hdc);
3193	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3194	#elif defined(RT_OS_DARWIN)
3195	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3196	#else
3197	/* show the window if not already done */
3198	if (!pContext->fMapped)
3199	{
3200	XMapWindow(pState->display, pContext->window);
3201	pContext->fMapped = true;
3202	}
3203	/* now swap the buffers, i.e. display the rendering result */
3204	glXSwapBuffers(pState->display, pContext->window);
3205	#endif
3206
3207	/*
3208	* Now we can reset the frame buffer association. Doing it earlier means no
3209	* output on darwin.
3210	*/
3211	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3212	return VINF_SUCCESS;
3213	}
3214
3215	#ifdef RT_OS_LINUX
3216	/**
3217	* X11 event handling thread.
3218	*
3219	* @returns VINF_SUCCESS (ignored)
3220	* @param hThreadSelf thread handle
3221	* @param pvUser pointer to pState structure
3222	*/
3223	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3224	{
3225	RT_NOREF(hThreadSelf);
3226	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3227	while (!pState->bTerminate)
3228	{
3229	while (XPending(pState->display) > 0)
3230	{
3231	XEvent event;
3232	XNextEvent(pState->display, &event);
3233
3234	switch (event.type)
3235	{
3236	default:
3237	break;
3238	}
3239	}
3240	/* sleep for 16ms to not burn too many cycles */
3241	RTThreadSleep(16);
3242	}
3243	return VINF_SUCCESS;
3244	}
3245	#endif // RT_OS_LINUX
3246
3247
3248	/**
3249	* Create a new 3d context
3250	*
3251	* @returns VBox status code.
3252	* @param pThis VGA device instance data.
3253	* @param cid Context id
3254	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3255	*/
3256	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3257	{
3258	int rc;
3259	PVMSVGA3DCONTEXT pContext;
3260	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3261
3262	AssertReturn(pState, VERR_NO_MEMORY);
3263	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3264	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3265	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3266	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3267	#endif
3268
3269	Log(("vmsvga3dContextDefine id %x\n", cid));
3270	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3271	if (pState->idTestContext == SVGA_ID_INVALID)
3272	{
3273	pState->idTestContext = 207;
3274	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3275	AssertRCReturn(rc, rc);
3276	}
3277	#endif
3278
3279	if (cid == VMSVGA3D_SHARED_CTX_ID)
3280	pContext = &pState->SharedCtx;
3281	else
3282	{
3283	if (cid >= pState->cContexts)
3284	{
3285	/* Grow the array. */
3286	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3287	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3288	AssertReturn(pvNew, VERR_NO_MEMORY);
3289	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3290	while (pState->cContexts < cNew)
3291	{
3292	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3293	AssertReturn(pContext, VERR_NO_MEMORY);
3294	pContext->id = SVGA3D_INVALID_ID;
3295	pState->papContexts[pState->cContexts++] = pContext;
3296	}
3297	}
3298	/* If one already exists with this id, then destroy it now. */
3299	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3300	vmsvga3dContextDestroy(pThis, cid);
3301
3302	pContext = pState->papContexts[cid];
3303	}
3304
3305	/*
3306	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3307	*/
3308	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3309	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3310	{
3311	pSharedCtx = &pState->SharedCtx;
3312	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3313	{
3314	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3315	AssertLogRelRCReturn(rc, rc);
3316	}
3317	}
3318
3319	/*
3320	* Initialize the context.
3321	*/
3322	memset(pContext, 0, sizeof(*pContext));
3323	pContext->id = cid;
3324	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3325	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3326
3327	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3328	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3329	pContext->idFramebuffer = OPENGL_INVALID_ID;
3330	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3331	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3332
3333	rc = ShaderContextCreate(&pContext->pShaderContext);
3334	AssertRCReturn(rc, rc);
3335
3336	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3337	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3338
3339	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3340
3341	#ifdef RT_OS_WINDOWS
3342	/* Create a context window. */
3343	CREATESTRUCT cs;
3344	cs.lpCreateParams = NULL;
3345	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3346	# ifdef DEBUG_GFX_WINDOW
3347	cs.lpszName = (char *)RTMemAllocZ(256);
3348	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3349	# else
3350	cs.lpszName = NULL;
3351	# endif
3352	cs.lpszClass = 0;
3353	# ifdef DEBUG_GFX_WINDOW
3354	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3355	# else
3356	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3357	# endif
3358	cs.x = 0;
3359	cs.y = 0;
3360	cs.cx = pThis->svga.uWidth;
3361	cs.cy = pThis->svga.uHeight;
3362	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3363	cs.hMenu = NULL;
3364	cs.hInstance = pState->hInstance;
3365
3366	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3367	AssertRCReturn(rc, rc);
3368
3369	pContext->hdc = GetDC(pContext->hwnd);
3370	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3371
3372	PIXELFORMATDESCRIPTOR pfd = {
3373	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3374	1, /* version number */
3375	PFD_DRAW_TO_WINDOW \| /* support window */
3376	PFD_DOUBLEBUFFER \| /* support double buffering */
3377	PFD_SUPPORT_OPENGL, /* support OpenGL */
3378	PFD_TYPE_RGBA, /* RGBA type */
3379	24, /* 24-bit color depth */
3380	0, 0, 0, 0, 0, 0, /* color bits ignored */
3381	8, /* alpha buffer */
3382	0, /* shift bit ignored */
3383	0, /* no accumulation buffer */
3384	0, 0, 0, 0, /* accum bits ignored */
3385	16, /* set depth buffer */
3386	16, /* set stencil buffer */
3387	0, /* no auxiliary buffer */
3388	PFD_MAIN_PLANE, /* main layer */
3389	0, /* reserved */
3390	0, 0, 0 /* layer masks ignored */
3391	};
3392	int pixelFormat;
3393	BOOL ret;
3394
3395	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3396	/** @todo is this really necessary?? */
3397	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3398	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3399
3400	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3401	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3402
3403	pContext->hglrc = wglCreateContext(pContext->hdc);
3404	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3405
3406	if (pSharedCtx)
3407	{
3408	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3409	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3410	}
3411
3412	#elif defined(RT_OS_DARWIN)
3413	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3414
3415	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3416	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3417	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3418	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3419	pThis->svga.uWidth, pThis->svga.uHeight,
3420	pShareContext, pContext->fOtherProfile);
3421
3422	#else
3423	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3424
3425	if (pState->display == NULL)
3426	{
3427	/* get an X display and make sure we have glX 1.3 */
3428	pState->display = XOpenDisplay(0);
3429	Assert(pState->display);
3430	int glxMajor, glxMinor;
3431	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3432	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3433	/* start our X event handling thread */
3434	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3435	if (RT_FAILURE(rc))
3436	{
3437	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3438	return rc;
3439	}
3440	}
3441	int attrib[] =
3442	{
3443	GLX_RGBA,
3444	GLX_RED_SIZE, 1,
3445	GLX_GREEN_SIZE, 1,
3446	GLX_BLUE_SIZE, 1,
3447	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3448	GLX_DOUBLEBUFFER,
3449	None
3450	};
3451	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3452	XSetWindowAttributes swa;
3453	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3454	swa.border_pixel = 0;
3455	swa.background_pixel = 0;
3456	swa.event_mask = StructureNotifyMask \| ExposureMask;
3457	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3458	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3459	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3460	0, vi->depth, InputOutput,
3461	vi->visual, flags, &swa);
3462	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3463	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3464
3465	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3466
3467	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3468	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3469	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3470	#endif
3471
3472	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3473
3474	/* NULL during the first PowerOn call. */
3475	if (pState->ext.glGenFramebuffers)
3476	{
3477	/* Create a framebuffer object for this context. */
3478	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3479	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3480
3481	/* Bind the object to the framebuffer target. */
3482	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3483	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3484
3485	/* Create read and draw framebuffer objects for this context. */
3486	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3487	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3488
3489	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3491
3492	}
3493	#if 0
3494	/** @todo move to shader lib!!! */
3495	/* Clear the screen */
3496	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3497
3498	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3499	glClearIndex(0);
3500	glClearDepth(1);
3501	glClearStencil(0xffff);
3502	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3503	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3504	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3505	if (pState->ext.glProvokingVertex)
3506	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3507	/** @todo move to shader lib!!! */
3508	#endif
3509	return VINF_SUCCESS;
3510	}
3511
3512
3513	/**
3514	* Create a new 3d context
3515	*
3516	* @returns VBox status code.
3517	* @param pThis VGA device instance data.
3518	* @param cid Context id
3519	*/
3520	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3521	{
3522	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3523	}
3524
3525	/**
3526	* Destroys a 3d context.
3527	*
3528	* @returns VBox status code.
3529	* @param pThis VGA device instance data.
3530	* @param pContext The context to destroy.
3531	* @param cid Context id
3532	*/
3533	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3534	{
3535	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3536	AssertReturn(pState, VERR_NO_MEMORY);
3537	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3538	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3539	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3540
3541	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3542
3543	/* Destroy all leftover pixel shaders. */
3544	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3545	{
3546	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3547	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3548	}
3549	if (pContext->paPixelShader)
3550	RTMemFree(pContext->paPixelShader);
3551
3552	/* Destroy all leftover vertex shaders. */
3553	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3554	{
3555	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3556	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3557	}
3558	if (pContext->paVertexShader)
3559	RTMemFree(pContext->paVertexShader);
3560
3561	if (pContext->state.paVertexShaderConst)
3562	RTMemFree(pContext->state.paVertexShaderConst);
3563	if (pContext->state.paPixelShaderConst)
3564	RTMemFree(pContext->state.paPixelShaderConst);
3565
3566	if (pContext->pShaderContext)
3567	{
3568	int rc = ShaderContextDestroy(pContext->pShaderContext);
3569	AssertRC(rc);
3570	}
3571
3572	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3573	{
3574	/* Unbind the object from the framebuffer target. */
3575	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3576	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3577	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3578	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3579
3580	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3581	{
3582	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3583	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3584	}
3585	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3586	{
3587	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3588	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3589	}
3590	}
3591
3592	vmsvga3dOcclusionQueryDelete(pState, pContext);
3593
3594	#ifdef RT_OS_WINDOWS
3595	wglMakeCurrent(pContext->hdc, NULL);
3596	wglDeleteContext(pContext->hglrc);
3597	ReleaseDC(pContext->hwnd, pContext->hdc);
3598
3599	/* Destroy the window we've created. */
3600	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3601	AssertRC(rc);
3602	#elif defined(RT_OS_DARWIN)
3603	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3604	#elif defined(RT_OS_LINUX)
3605	glXMakeCurrent(pState->display, None, NULL);
3606	glXDestroyContext(pState->display, pContext->glxContext);
3607	XDestroyWindow(pState->display, pContext->window);
3608	#endif
3609
3610	memset(pContext, 0, sizeof(*pContext));
3611	pContext->id = SVGA3D_INVALID_ID;
3612
3613	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3614	return VINF_SUCCESS;
3615	}
3616
3617	/**
3618	* Destroy an existing 3d context
3619	*
3620	* @returns VBox status code.
3621	* @param pThis VGA device instance data.
3622	* @param cid Context id
3623	*/
3624	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3625	{
3626	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3627	AssertReturn(pState, VERR_WRONG_ORDER);
3628
3629	/*
3630	* Resolve the context and hand it to the common worker function.
3631	*/
3632	if ( cid < pState->cContexts
3633	&& pState->papContexts[cid]->id == cid)
3634	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3635
3636	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3637	return VINF_SUCCESS;
3638	}
3639
3640	/**
3641	* Worker for vmsvga3dChangeMode that resizes a context.
3642	*
3643	* @param pThis The VGA device instance data.
3644	* @param pState The VMSVGA3d state.
3645	* @param pContext The context.
3646	*/
3647	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3648	{
3649	#ifdef RT_OS_WINDOWS
3650	/* Resize the window. */
3651	CREATESTRUCT cs;
3652	RT_ZERO(cs);
3653	cs.cx = pThis->svga.uWidth;
3654	cs.cy = pThis->svga.uHeight;
3655	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3656	AssertRC(rc);
3657
3658	#elif defined(RT_OS_DARWIN)
3659	RT_NOREF(pState);
3660	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3661
3662	#elif defined(RT_OS_LINUX)
3663	XWindowChanges wc;
3664	wc.width = pThis->svga.uWidth;
3665	wc.height = pThis->svga.uHeight;
3666	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3667	#endif
3668	}
3669
3670	/* Handle resize */
3671	int vmsvga3dChangeMode(PVGASTATE pThis)
3672	{
3673	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3674	AssertReturn(pState, VERR_NO_MEMORY);
3675
3676	/* Resize the shared context too. */
3677	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3678	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3679
3680	/* Resize all active contexts. */
3681	for (uint32_t i = 0; i < pState->cContexts; i++)
3682	{
3683	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3684	if (pContext->id != SVGA3D_INVALID_ID)
3685	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3686	}
3687
3688	return VINF_SUCCESS;
3689	}
3690
3691
3692	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3693	{
3694	PVMSVGA3DCONTEXT pContext;
3695	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3696	AssertReturn(pState, VERR_NO_MEMORY);
3697	bool fModelViewChanged = false;
3698
3699	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3700
3701	if ( cid >= pState->cContexts
3702	\|\| pState->papContexts[cid]->id != cid)
3703	{
3704	Log(("vmsvga3dSetTransform invalid context id!\n"));
3705	return VERR_INVALID_PARAMETER;
3706	}
3707	pContext = pState->papContexts[cid];
3708	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3709
3710	/* Save this matrix for vm state save/restore. */
3711	pContext->state.aTransformState[type].fValid = true;
3712	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3713	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3714
3715	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)));
3716	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)));
3717	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)));
3718	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)));
3719
3720	switch (type)
3721	{
3722	case SVGA3D_TRANSFORM_VIEW:
3723	/* View * World = Model View */
3724	glMatrixMode(GL_MODELVIEW);
3725	glLoadMatrixf(matrix);
3726	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3727	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3728	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3729	fModelViewChanged = true;
3730	break;
3731
3732	case SVGA3D_TRANSFORM_PROJECTION:
3733	{
3734	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3735	AssertRCReturn(rc, rc);
3736	break;
3737	}
3738
3739	case SVGA3D_TRANSFORM_TEXTURE0:
3740	glMatrixMode(GL_TEXTURE);
3741	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3742	glLoadMatrixf(matrix);
3743	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3744	break;
3745
3746	case SVGA3D_TRANSFORM_TEXTURE1:
3747	case SVGA3D_TRANSFORM_TEXTURE2:
3748	case SVGA3D_TRANSFORM_TEXTURE3:
3749	case SVGA3D_TRANSFORM_TEXTURE4:
3750	case SVGA3D_TRANSFORM_TEXTURE5:
3751	case SVGA3D_TRANSFORM_TEXTURE6:
3752	case SVGA3D_TRANSFORM_TEXTURE7:
3753	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3754	return VERR_INVALID_PARAMETER;
3755
3756	case SVGA3D_TRANSFORM_WORLD:
3757	/* View * World = Model View */
3758	glMatrixMode(GL_MODELVIEW);
3759	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3760	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3761	else
3762	glLoadIdentity();
3763	glMultMatrixf(matrix);
3764	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3765	fModelViewChanged = true;
3766	break;
3767
3768	case SVGA3D_TRANSFORM_WORLD1:
3769	case SVGA3D_TRANSFORM_WORLD2:
3770	case SVGA3D_TRANSFORM_WORLD3:
3771	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3772	return VERR_INVALID_PARAMETER;
3773
3774	default:
3775	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3776	return VERR_INVALID_PARAMETER;
3777	}
3778
3779	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3780	if (fModelViewChanged)
3781	{
3782	/* Reprogram the clip planes. */
3783	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3784	{
3785	if (pContext->state.aClipPlane[j].fValid == true)
3786	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3787	}
3788
3789	/* Reprogram the light data. */
3790	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3791	{
3792	if (pContext->state.aLightData[j].fValidData == true)
3793	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3794	}
3795	}
3796
3797	return VINF_SUCCESS;
3798	}
3799
3800	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3801	{
3802	PVMSVGA3DCONTEXT pContext;
3803	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3804	AssertReturn(pState, VERR_NO_MEMORY);
3805
3806	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3807
3808	if ( cid >= pState->cContexts
3809	\|\| pState->papContexts[cid]->id != cid)
3810	{
3811	Log(("vmsvga3dSetZRange invalid context id!\n"));
3812	return VERR_INVALID_PARAMETER;
3813	}
3814	pContext = pState->papContexts[cid];
3815	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3816
3817	pContext->state.zRange = zRange;
3818	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3819
3820	if (zRange.min < -1.0)
3821	zRange.min = -1.0;
3822	if (zRange.max > 1.0)
3823	zRange.max = 1.0;
3824
3825	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3827	return VINF_SUCCESS;
3828	}
3829
3830	/**
3831	* Convert SVGA blend op value to its OpenGL equivalent
3832	*/
3833	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3834	{
3835	switch (blendOp)
3836	{
3837	case SVGA3D_BLENDOP_ZERO:
3838	return GL_ZERO;
3839	case SVGA3D_BLENDOP_ONE:
3840	return GL_ONE;
3841	case SVGA3D_BLENDOP_SRCCOLOR:
3842	return GL_SRC_COLOR;
3843	case SVGA3D_BLENDOP_INVSRCCOLOR:
3844	return GL_ONE_MINUS_SRC_COLOR;
3845	case SVGA3D_BLENDOP_SRCALPHA:
3846	return GL_SRC_ALPHA;
3847	case SVGA3D_BLENDOP_INVSRCALPHA:
3848	return GL_ONE_MINUS_SRC_ALPHA;
3849	case SVGA3D_BLENDOP_DESTALPHA:
3850	return GL_DST_ALPHA;
3851	case SVGA3D_BLENDOP_INVDESTALPHA:
3852	return GL_ONE_MINUS_DST_ALPHA;
3853	case SVGA3D_BLENDOP_DESTCOLOR:
3854	return GL_DST_COLOR;
3855	case SVGA3D_BLENDOP_INVDESTCOLOR:
3856	return GL_ONE_MINUS_DST_COLOR;
3857	case SVGA3D_BLENDOP_SRCALPHASAT:
3858	return GL_SRC_ALPHA_SATURATE;
3859	case SVGA3D_BLENDOP_BLENDFACTOR:
3860	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3861	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3862	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3863	default:
3864	AssertFailed();
3865	return GL_ONE;
3866	}
3867	}
3868
3869	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3870	{
3871	switch (blendEq)
3872	{
3873	case SVGA3D_BLENDEQ_ADD:
3874	return GL_FUNC_ADD;
3875	case SVGA3D_BLENDEQ_SUBTRACT:
3876	return GL_FUNC_SUBTRACT;
3877	case SVGA3D_BLENDEQ_REVSUBTRACT:
3878	return GL_FUNC_REVERSE_SUBTRACT;
3879	case SVGA3D_BLENDEQ_MINIMUM:
3880	return GL_MIN;
3881	case SVGA3D_BLENDEQ_MAXIMUM:
3882	return GL_MAX;
3883	default:
3884	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3885	return GL_FUNC_ADD;
3886	}
3887	}
3888
3889	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3890	{
3891	switch (cmpFunc)
3892	{
3893	case SVGA3D_CMP_NEVER:
3894	return GL_NEVER;
3895	case SVGA3D_CMP_LESS:
3896	return GL_LESS;
3897	case SVGA3D_CMP_EQUAL:
3898	return GL_EQUAL;
3899	case SVGA3D_CMP_LESSEQUAL:
3900	return GL_LEQUAL;
3901	case SVGA3D_CMP_GREATER:
3902	return GL_GREATER;
3903	case SVGA3D_CMP_NOTEQUAL:
3904	return GL_NOTEQUAL;
3905	case SVGA3D_CMP_GREATEREQUAL:
3906	return GL_GEQUAL;
3907	case SVGA3D_CMP_ALWAYS:
3908	return GL_ALWAYS;
3909	default:
3910	AssertFailed();
3911	return GL_LESS;
3912	}
3913	}
3914
3915	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3916	{
3917	switch (stencilOp)
3918	{
3919	case SVGA3D_STENCILOP_KEEP:
3920	return GL_KEEP;
3921	case SVGA3D_STENCILOP_ZERO:
3922	return GL_ZERO;
3923	case SVGA3D_STENCILOP_REPLACE:
3924	return GL_REPLACE;
3925	case SVGA3D_STENCILOP_INCRSAT:
3926	return GL_INCR_WRAP;
3927	case SVGA3D_STENCILOP_DECRSAT:
3928	return GL_DECR_WRAP;
3929	case SVGA3D_STENCILOP_INVERT:
3930	return GL_INVERT;
3931	case SVGA3D_STENCILOP_INCR:
3932	return GL_INCR;
3933	case SVGA3D_STENCILOP_DECR:
3934	return GL_DECR;
3935	default:
3936	AssertFailed();
3937	return GL_KEEP;
3938	}
3939	}
3940
3941	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3942	{
3943	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3944	PVMSVGA3DCONTEXT pContext;
3945	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3946	AssertReturn(pState, VERR_NO_MEMORY);
3947
3948	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3949
3950	if ( cid >= pState->cContexts
3951	\|\| pState->papContexts[cid]->id != cid)
3952	{
3953	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3954	return VERR_INVALID_PARAMETER;
3955	}
3956	pContext = pState->papContexts[cid];
3957	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3958
3959	for (unsigned i = 0; i < cRenderStates; i++)
3960	{
3961	GLenum enableCap = ~(GLenum)0;
3962	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3963	/* Save the render state for vm state saving. */
3964	if (pRenderState[i].state < SVGA3D_RS_MAX)
3965	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3966
3967	switch (pRenderState[i].state)
3968	{
3969	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3970	enableCap = GL_DEPTH_TEST;
3971	val = pRenderState[i].uintValue;
3972	break;
3973
3974	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3975	glDepthMask(!!pRenderState[i].uintValue);
3976	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3977	break;
3978
3979	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3980	enableCap = GL_ALPHA_TEST;
3981	val = pRenderState[i].uintValue;
3982	break;
3983
3984	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3985	enableCap = GL_DITHER;
3986	val = pRenderState[i].uintValue;
3987	break;
3988
3989	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3990	enableCap = GL_FOG;
3991	val = pRenderState[i].uintValue;
3992	break;
3993
3994	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3995	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3996	break;
3997
3998	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3999	enableCap = GL_LIGHTING;
4000	val = pRenderState[i].uintValue;
4001	break;
4002
4003	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
4004	/* not applicable */
4005	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4006	break;
4007
4008	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
4009	enableCap = GL_POINT_SPRITE_ARB;
4010	val = pRenderState[i].uintValue;
4011	break;
4012
4013	case SVGA3D_RS_POINTSIZE: /* float */
4014	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4015	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4016	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4017	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4018	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4019
4020	glPointSize(pRenderState[i].floatValue);
4021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4022	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4023	break;
4024
4025	case SVGA3D_RS_POINTSIZEMIN: /* float */
4026	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4028	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4029	break;
4030
4031	case SVGA3D_RS_POINTSIZEMAX: /* float */
4032	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4033	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4034	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4035	break;
4036
4037	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4038	case SVGA3D_RS_POINTSCALE_A: /* float */
4039	case SVGA3D_RS_POINTSCALE_B: /* float */
4040	case SVGA3D_RS_POINTSCALE_C: /* float */
4041	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4042	break;
4043
4044	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4045	{
4046	GLfloat color[4]; /* red, green, blue, alpha */
4047
4048	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4049
4050	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4051	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4052	break;
4053	}
4054
4055	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4056	{
4057	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4058	for (uint32_t j = 0; j <= 5; j++)
4059	{
4060	if (pRenderState[i].uintValue & RT_BIT(j))
4061	glEnable(GL_CLIP_PLANE0 + j);
4062	else
4063	glDisable(GL_CLIP_PLANE0 + j);
4064	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4065	}
4066	break;
4067	}
4068
4069	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4070	{
4071	GLfloat color[4]; /* red, green, blue, alpha */
4072
4073	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4074
4075	glFogfv(GL_FOG_COLOR, color);
4076	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4077	break;
4078	}
4079
4080	case SVGA3D_RS_FOGSTART: /* float */
4081	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4083	break;
4084
4085	case SVGA3D_RS_FOGEND: /* float */
4086	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4088	break;
4089
4090	case SVGA3D_RS_FOGDENSITY: /* float */
4091	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4092	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4093	break;
4094
4095	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4096	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4097	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4098	break;
4099
4100	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4101	{
4102	SVGA3dFogMode mode;
4103	mode.uintValue = pRenderState[i].uintValue;
4104
4105	enableCap = GL_FOG_MODE;
4106	switch (mode.s.function)
4107	{
4108	case SVGA3D_FOGFUNC_EXP:
4109	val = GL_EXP;
4110	break;
4111	case SVGA3D_FOGFUNC_EXP2:
4112	val = GL_EXP2;
4113	break;
4114	case SVGA3D_FOGFUNC_LINEAR:
4115	val = GL_LINEAR;
4116	break;
4117	default:
4118	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4119	break;
4120	}
4121
4122	/** @todo how to switch between vertex and pixel fog modes??? */
4123	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4124	#if 0
4125	/* The fog type determines the render state. */
4126	switch (mode.s.type)
4127	{
4128	case SVGA3D_FOGTYPE_VERTEX:
4129	renderState = D3DRS_FOGVERTEXMODE;
4130	break;
4131	case SVGA3D_FOGTYPE_PIXEL:
4132	renderState = D3DRS_FOGTABLEMODE;
4133	break;
4134	default:
4135	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4136	break;
4137	}
4138	#endif
4139
4140	/* Set the fog base to depth or range. */
4141	switch (mode.s.base)
4142	{
4143	case SVGA3D_FOGBASE_DEPTHBASED:
4144	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4145	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4146	break;
4147	case SVGA3D_FOGBASE_RANGEBASED:
4148	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4150	break;
4151	default:
4152	/* ignore */
4153	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4154	break;
4155	}
4156	break;
4157	}
4158
4159	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4160	{
4161	SVGA3dFillMode mode;
4162
4163	mode.uintValue = pRenderState[i].uintValue;
4164
4165	switch (mode.s.mode)
4166	{
4167	case SVGA3D_FILLMODE_POINT:
4168	val = GL_POINT;
4169	break;
4170	case SVGA3D_FILLMODE_LINE:
4171	val = GL_LINE;
4172	break;
4173	case SVGA3D_FILLMODE_FILL:
4174	val = GL_FILL;
4175	break;
4176	default:
4177	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4178	break;
4179	}
4180	/* @note only front and back faces */
4181	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4182	glPolygonMode(GL_FRONT_AND_BACK, val);
4183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4184	break;
4185	}
4186
4187	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4188	switch (pRenderState[i].uintValue)
4189	{
4190	case SVGA3D_SHADEMODE_FLAT:
4191	val = GL_FLAT;
4192	break;
4193
4194	case SVGA3D_SHADEMODE_SMOOTH:
4195	val = GL_SMOOTH;
4196	break;
4197
4198	default:
4199	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4200	break;
4201	}
4202
4203	glShadeModel(val);
4204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4205	break;
4206
4207	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4208	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4209	/** @todo */
4210	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4211	/*
4212	renderState = D3DRS_LINEPATTERN;
4213	val = pRenderState[i].uintValue;
4214	*/
4215	break;
4216
4217	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4218	enableCap = GL_LINE_SMOOTH;
4219	val = pRenderState[i].uintValue;
4220	break;
4221
4222	case SVGA3D_RS_LINEWIDTH: /* float */
4223	glLineWidth(pRenderState[i].floatValue);
4224	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4225	break;
4226
4227	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4228	{
4229	/* Refresh the blending state based on the new enable setting. */
4230	SVGA3dRenderState renderstate[2];
4231
4232	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4233	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4234	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4235	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4236
4237	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4238	AssertRCReturn(rc, rc);
4239
4240	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4241	continue; /* ignore if blend is already enabled */
4242	} RT_FALL_THRU();
4243
4244	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4245	enableCap = GL_BLEND;
4246	val = pRenderState[i].uintValue;
4247	break;
4248
4249	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4250	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4251	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4252	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4253	{
4254	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4255	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4256
4257	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4258	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4259	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4260	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4261	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4262	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4263	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4264	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4265
4266	switch (pRenderState[i].state)
4267	{
4268	case SVGA3D_RS_SRCBLEND:
4269	srcRGB = blendop;
4270	break;
4271	case SVGA3D_RS_DSTBLEND:
4272	dstRGB = blendop;
4273	break;
4274	case SVGA3D_RS_SRCBLENDALPHA:
4275	srcAlpha = blendop;
4276	break;
4277	case SVGA3D_RS_DSTBLENDALPHA:
4278	dstAlpha = blendop;
4279	break;
4280	default:
4281	/* not possible; shut up gcc */
4282	AssertFailed();
4283	break;
4284	}
4285
4286	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4287	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4288	else
4289	glBlendFunc(srcRGB, dstRGB);
4290	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4291	break;
4292	}
4293
4294	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4295	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4296	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4297	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4298	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4299	else
4300	{
4301	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4302	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4303	#else
4304	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4305	#endif
4306	}
4307	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4308	break;
4309
4310	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4311	{
4312	GLfloat red, green, blue, alpha;
4313
4314	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4315
4316	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4317	glBlendColor(red, green, blue, alpha);
4318	#else
4319	pState->ext.glBlendColor(red, green, blue, alpha);
4320	#endif
4321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4322	break;
4323	}
4324
4325	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4326	{
4327	GLenum mode = GL_BACK; /* default for OpenGL */
4328
4329	switch (pRenderState[i].uintValue)
4330	{
4331	case SVGA3D_FACE_NONE:
4332	break;
4333	case SVGA3D_FACE_FRONT:
4334	mode = GL_FRONT;
4335	break;
4336	case SVGA3D_FACE_BACK:
4337	mode = GL_BACK;
4338	break;
4339	case SVGA3D_FACE_FRONT_BACK:
4340	mode = GL_FRONT_AND_BACK;
4341	break;
4342	default:
4343	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4344	break;
4345	}
4346	enableCap = GL_CULL_FACE;
4347	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4348	{
4349	glCullFace(mode);
4350	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4351	val = 1;
4352	}
4353	else
4354	val = 0;
4355	break;
4356	}
4357
4358	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4359	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4360	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4361	break;
4362
4363	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4364	{
4365	GLclampf ref;
4366
4367	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4368	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4369	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4370	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4371	break;
4372	}
4373
4374	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4375	{
4376	GLint func;
4377
4378	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4379	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4380	glAlphaFunc(func, pRenderState[i].floatValue);
4381	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4382	break;
4383	}
4384
4385	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4386	enableCap = GL_STENCIL_TEST;
4387	val = pRenderState[i].uintValue;
4388	break;
4389
4390	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4391	case SVGA3D_RS_STENCILREF: /* uint32_t */
4392	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4393	{
4394	GLint func, ref;
4395	GLuint mask;
4396
4397	glGetIntegerv(GL_STENCIL_FUNC, &func);
4398	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4399	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4400	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4401	glGetIntegerv(GL_STENCIL_REF, &ref);
4402	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4403
4404	switch (pRenderState[i].state)
4405	{
4406	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4407	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4408	break;
4409
4410	case SVGA3D_RS_STENCILREF: /* uint32_t */
4411	ref = pRenderState[i].uintValue;
4412	break;
4413
4414	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4415	mask = pRenderState[i].uintValue;
4416	break;
4417
4418	default:
4419	/* not possible; shut up gcc */
4420	AssertFailed();
4421	break;
4422	}
4423
4424	glStencilFunc(func, ref, mask);
4425	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4426	break;
4427	}
4428
4429	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4430	glStencilMask(pRenderState[i].uintValue);
4431	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4432	break;
4433
4434	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4435	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4436	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4437	{
4438	GLint sfail, dpfail, dppass;
4439	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4440
4441	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4442	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4443	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4444	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4445	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4446	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4447
4448	switch (pRenderState[i].state)
4449	{
4450	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4451	sfail = stencilop;
4452	break;
4453	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4454	dpfail = stencilop;
4455	break;
4456	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4457	dppass = stencilop;
4458	break;
4459	default:
4460	/* not possible; shut up gcc */
4461	AssertFailed();
4462	break;
4463	}
4464	glStencilOp(sfail, dpfail, dppass);
4465	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4466	break;
4467	}
4468
4469	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4470	/* @note GL_EXT_stencil_two_side required! */
4471	if (pState->ext.fEXT_stencil_two_side)
4472	{
4473	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4474	val = pRenderState[i].uintValue;
4475	}
4476	else
4477	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4478	break;
4479
4480	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4481	{
4482	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4483	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4484	*/
4485	GLint ref;
4486	GLuint mask;
4487
4488	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4489	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4490	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4491	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4492
4493	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4494	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4495	break;
4496	}
4497
4498	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4499	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4500	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4501	{
4502	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4503	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4504	*/
4505	GLint sfail, dpfail, dppass;
4506	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4507
4508	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4509	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4510	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4511	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4512	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4513	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4514
4515	switch (pRenderState[i].state)
4516	{
4517	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4518	sfail = stencilop;
4519	break;
4520	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4521	dpfail = stencilop;
4522	break;
4523	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4524	dppass = stencilop;
4525	break;
4526	default:
4527	/* not possible; shut up gcc */
4528	AssertFailed();
4529	break;
4530	}
4531	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4532	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4533	break;
4534	}
4535
4536	case SVGA3D_RS_ZBIAS: /* float */
4537	/** @todo unknown meaning; depth bias is not identical
4538	renderState = D3DRS_DEPTHBIAS;
4539	val = pRenderState[i].uintValue;
4540	*/
4541	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4542	break;
4543
4544	case SVGA3D_RS_DEPTHBIAS: /* float */
4545	{
4546	GLfloat factor;
4547
4548	/** @todo not sure if the d3d & ogl definitions are identical. */
4549
4550	/* Do not change the factor part. */
4551	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4552	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4553
4554	glPolygonOffset(factor, pRenderState[i].floatValue);
4555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4556	break;
4557	}
4558
4559	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4560	{
4561	GLfloat units;
4562
4563	/** @todo not sure if the d3d & ogl definitions are identical. */
4564
4565	/* Do not change the factor part. */
4566	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4567	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4568
4569	glPolygonOffset(pRenderState[i].floatValue, units);
4570	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4571	break;
4572	}
4573
4574	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4575	{
4576	GLboolean red, green, blue, alpha;
4577	SVGA3dColorMask mask;
4578
4579	mask.uintValue = pRenderState[i].uintValue;
4580
4581	red = mask.s.red;
4582	green = mask.s.green;
4583	blue = mask.s.blue;
4584	alpha = mask.s.alpha;
4585
4586	glColorMask(red, green, blue, alpha);
4587	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4588	break;
4589	}
4590
4591	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4592	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4593	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4594	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4595	break;
4596
4597	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4598	enableCap = GL_SCISSOR_TEST;
4599	val = pRenderState[i].uintValue;
4600	break;
4601
4602	#if 0
4603	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4604	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4605	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4606	val = pRenderState[i].uintValue;
4607	break;
4608
4609	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4610	renderState = D3DRS_SPECULARMATERIALSOURCE;
4611	val = pRenderState[i].uintValue;
4612	break;
4613
4614	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4615	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4616	val = pRenderState[i].uintValue;
4617	break;
4618
4619	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4620	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4621	val = pRenderState[i].uintValue;
4622	break;
4623	#endif
4624
4625	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4626	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4627	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4628	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4629	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4630	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4631	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4632	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4633	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4634	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4635	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4636	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4637	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4638	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4639	break;
4640
4641	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4642	case SVGA3D_RS_TWEENFACTOR: /* float */
4643	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4644	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4645	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4646	break;
4647
4648	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4649	enableCap = GL_MULTISAMPLE;
4650	val = pRenderState[i].uintValue;
4651	break;
4652
4653	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4654	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4655	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4656	break;
4657
4658	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4659	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4660	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4661	/*
4662	renderState = D3DRS_COORDINATETYPE;
4663	val = pRenderState[i].uintValue;
4664	*/
4665	break;
4666
4667	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4668	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4669	/* Invert the selected mode because of y-inversion (?) */
4670	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4672	break;
4673
4674	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4675	//AssertFailed();
4676	/*
4677	D3DRS_SRGBWRITEENABLE ??
4678	renderState = D3DRS_OUTPUTGAMMA;
4679	val = pRenderState[i].uintValue;
4680	*/
4681	break;
4682
4683	#if 0
4684
4685	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4686	//AssertFailed();
4687	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4688	val = pRenderState[i].uintValue;
4689	break;
4690
4691	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4692	renderState = D3DRS_TEXTUREFACTOR;
4693	val = pRenderState[i].uintValue;
4694	break;
4695
4696	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4697	renderState = D3DRS_LOCALVIEWER;
4698	val = pRenderState[i].uintValue;
4699	break;
4700
4701	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4702	AssertFailed();
4703	/*
4704	renderState = D3DRS_ZVISIBLE;
4705	val = pRenderState[i].uintValue;
4706	*/
4707	break;
4708
4709	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4710	renderState = D3DRS_CLIPPING;
4711	val = pRenderState[i].uintValue;
4712	break;
4713
4714	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4715	glTexParameter GL_TEXTURE_WRAP_S
4716	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4717	renderState = D3DRS_WRAP0;
4718	val = pRenderState[i].uintValue;
4719	break;
4720
4721	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4722	glTexParameter GL_TEXTURE_WRAP_T
4723	renderState = D3DRS_WRAP1;
4724	val = pRenderState[i].uintValue;
4725	break;
4726
4727	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4728	glTexParameter GL_TEXTURE_WRAP_R
4729	renderState = D3DRS_WRAP2;
4730	val = pRenderState[i].uintValue;
4731	break;
4732
4733
4734	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4735	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4736	val = pRenderState[i].uintValue;
4737	break;
4738
4739
4740	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4741	renderState = D3DRS_BLENDOPALPHA;
4742	val = pRenderState[i].uintValue;
4743	break;
4744
4745	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4746	AssertFailed();
4747	/*
4748	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4749	val = pRenderState[i].uintValue;
4750	*/
4751	break;
4752
4753	#endif
4754	default:
4755	AssertFailed();
4756	break;
4757	}
4758
4759	if (enableCap != ~(GLenum)0)
4760	{
4761	if (val)
4762	glEnable(enableCap);
4763	else
4764	glDisable(enableCap);
4765	}
4766	}
4767
4768	return VINF_SUCCESS;
4769	}
4770
4771	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4772	{
4773	PVMSVGA3DCONTEXT pContext;
4774	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4775	PVMSVGA3DSURFACE pRenderTarget;
4776
4777	AssertReturn(pState, VERR_NO_MEMORY);
4778	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4779	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4780
4781	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4782
4783	if ( cid >= pState->cContexts
4784	\|\| pState->papContexts[cid]->id != cid)
4785	{
4786	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4787	return VERR_INVALID_PARAMETER;
4788	}
4789	pContext = pState->papContexts[cid];
4790	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4791
4792	/* Save for vm state save/restore. */
4793	pContext->state.aRenderTargets[type] = target.sid;
4794
4795	if (target.sid == SVGA3D_INVALID_ID)
4796	{
4797	/* Disable render target. */
4798	switch (type)
4799	{
4800	case SVGA3D_RT_DEPTH:
4801	case SVGA3D_RT_STENCIL:
4802	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4803	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4804	break;
4805
4806	case SVGA3D_RT_COLOR0:
4807	case SVGA3D_RT_COLOR1:
4808	case SVGA3D_RT_COLOR2:
4809	case SVGA3D_RT_COLOR3:
4810	case SVGA3D_RT_COLOR4:
4811	case SVGA3D_RT_COLOR5:
4812	case SVGA3D_RT_COLOR6:
4813	case SVGA3D_RT_COLOR7:
4814	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4815	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4816	break;
4817
4818	default:
4819	AssertFailedReturn(VERR_INVALID_PARAMETER);
4820	}
4821	return VINF_SUCCESS;
4822	}
4823
4824	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4825	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4826	pRenderTarget = pState->papSurfaces[target.sid];
4827
4828	switch (type)
4829	{
4830	case SVGA3D_RT_DEPTH:
4831	case SVGA3D_RT_STENCIL:
4832	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4833	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4834	{
4835	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4836	pContext = &pState->SharedCtx;
4837	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4838
4839	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4840	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4841
4842	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4843	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4844
4845	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4846	pRenderTarget->internalFormatGL,
4847	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4848	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4849	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4850
4851	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4852	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4853
4854	pContext = pState->papContexts[cid];
4855	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4856	pRenderTarget->idWeakContextAssociation = cid;
4857	}
4858
4859	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4860	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4861	Assert(!pRenderTarget->fDirty);
4862	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4863
4864	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4865
4866	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4867	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4868	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4869	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4870	break;
4871
4872	case SVGA3D_RT_COLOR0:
4873	case SVGA3D_RT_COLOR1:
4874	case SVGA3D_RT_COLOR2:
4875	case SVGA3D_RT_COLOR3:
4876	case SVGA3D_RT_COLOR4:
4877	case SVGA3D_RT_COLOR5:
4878	case SVGA3D_RT_COLOR6:
4879	case SVGA3D_RT_COLOR7:
4880	{
4881	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4882	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4883	{
4884	Log(("vmsvga3dSetRenderTarget: create texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4885	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4886	AssertRCReturn(rc, rc);
4887	}
4888
4889	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4890	Assert(!pRenderTarget->fDirty);
4891
4892	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4893
4894	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4895	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4896
4897	#ifdef DEBUG
4898	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4899	if (status != GL_FRAMEBUFFER_COMPLETE)
4900	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4901	#endif
4902	/** @todo use glDrawBuffers too? */
4903	break;
4904	}
4905
4906	default:
4907	AssertFailedReturn(VERR_INVALID_PARAMETER);
4908	}
4909
4910	return VINF_SUCCESS;
4911	}
4912
4913	#if 0
4914	/**
4915	* Convert SVGA texture combiner value to its D3D equivalent
4916	*/
4917	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4918	{
4919	switch (value)
4920	{
4921	case SVGA3D_TC_DISABLE:
4922	return D3DTOP_DISABLE;
4923	case SVGA3D_TC_SELECTARG1:
4924	return D3DTOP_SELECTARG1;
4925	case SVGA3D_TC_SELECTARG2:
4926	return D3DTOP_SELECTARG2;
4927	case SVGA3D_TC_MODULATE:
4928	return D3DTOP_MODULATE;
4929	case SVGA3D_TC_ADD:
4930	return D3DTOP_ADD;
4931	case SVGA3D_TC_ADDSIGNED:
4932	return D3DTOP_ADDSIGNED;
4933	case SVGA3D_TC_SUBTRACT:
4934	return D3DTOP_SUBTRACT;
4935	case SVGA3D_TC_BLENDTEXTUREALPHA:
4936	return D3DTOP_BLENDTEXTUREALPHA;
4937	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4938	return D3DTOP_BLENDDIFFUSEALPHA;
4939	case SVGA3D_TC_BLENDCURRENTALPHA:
4940	return D3DTOP_BLENDCURRENTALPHA;
4941	case SVGA3D_TC_BLENDFACTORALPHA:
4942	return D3DTOP_BLENDFACTORALPHA;
4943	case SVGA3D_TC_MODULATE2X:
4944	return D3DTOP_MODULATE2X;
4945	case SVGA3D_TC_MODULATE4X:
4946	return D3DTOP_MODULATE4X;
4947	case SVGA3D_TC_DSDT:
4948	AssertFailed(); /** @todo ??? */
4949	return D3DTOP_DISABLE;
4950	case SVGA3D_TC_DOTPRODUCT3:
4951	return D3DTOP_DOTPRODUCT3;
4952	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4953	return D3DTOP_BLENDTEXTUREALPHAPM;
4954	case SVGA3D_TC_ADDSIGNED2X:
4955	return D3DTOP_ADDSIGNED2X;
4956	case SVGA3D_TC_ADDSMOOTH:
4957	return D3DTOP_ADDSMOOTH;
4958	case SVGA3D_TC_PREMODULATE:
4959	return D3DTOP_PREMODULATE;
4960	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4961	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4962	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4963	return D3DTOP_MODULATECOLOR_ADDALPHA;
4964	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4965	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4966	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4967	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4968	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4969	return D3DTOP_BUMPENVMAPLUMINANCE;
4970	case SVGA3D_TC_MULTIPLYADD:
4971	return D3DTOP_MULTIPLYADD;
4972	case SVGA3D_TC_LERP:
4973	return D3DTOP_LERP;
4974	default:
4975	AssertFailed();
4976	return D3DTOP_DISABLE;
4977	}
4978	}
4979
4980	/**
4981	* Convert SVGA texture arg data value to its D3D equivalent
4982	*/
4983	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4984	{
4985	switch (value)
4986	{
4987	case SVGA3D_TA_CONSTANT:
4988	return D3DTA_CONSTANT;
4989	case SVGA3D_TA_PREVIOUS:
4990	return D3DTA_CURRENT; /* current = previous */
4991	case SVGA3D_TA_DIFFUSE:
4992	return D3DTA_DIFFUSE;
4993	case SVGA3D_TA_TEXTURE:
4994	return D3DTA_TEXTURE;
4995	case SVGA3D_TA_SPECULAR:
4996	return D3DTA_SPECULAR;
4997	default:
4998	AssertFailed();
4999	return 0;
5000	}
5001	}
5002
5003	/**
5004	* Convert SVGA texture transform flag value to its D3D equivalent
5005	*/
5006	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5007	{
5008	switch (value)
5009	{
5010	case SVGA3D_TEX_TRANSFORM_OFF:
5011	return D3DTTFF_DISABLE;
5012	case SVGA3D_TEX_TRANSFORM_S:
5013	return D3DTTFF_COUNT1; /** @todo correct? */
5014	case SVGA3D_TEX_TRANSFORM_T:
5015	return D3DTTFF_COUNT2; /** @todo correct? */
5016	case SVGA3D_TEX_TRANSFORM_R:
5017	return D3DTTFF_COUNT3; /** @todo correct? */
5018	case SVGA3D_TEX_TRANSFORM_Q:
5019	return D3DTTFF_COUNT4; /** @todo correct? */
5020	case SVGA3D_TEX_PROJECTED:
5021	return D3DTTFF_PROJECTED;
5022	default:
5023	AssertFailed();
5024	return 0;
5025	}
5026	}
5027	#endif
5028
5029	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5030	{
5031	switch (value)
5032	{
5033	case SVGA3D_TEX_ADDRESS_WRAP:
5034	return GL_REPEAT;
5035	case SVGA3D_TEX_ADDRESS_MIRROR:
5036	return GL_MIRRORED_REPEAT;
5037	case SVGA3D_TEX_ADDRESS_CLAMP:
5038	return GL_CLAMP_TO_EDGE;
5039	case SVGA3D_TEX_ADDRESS_BORDER:
5040	return GL_CLAMP_TO_BORDER;
5041	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5042	AssertFailed();
5043	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5044
5045	case SVGA3D_TEX_ADDRESS_EDGE:
5046	case SVGA3D_TEX_ADDRESS_INVALID:
5047	default:
5048	AssertFailed();
5049	return GL_REPEAT; /* default */
5050	}
5051	}
5052
5053	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5054	{
5055	switch (value)
5056	{
5057	case SVGA3D_TEX_FILTER_NONE:
5058	case SVGA3D_TEX_FILTER_LINEAR:
5059	return GL_LINEAR;
5060	case SVGA3D_TEX_FILTER_NEAREST:
5061	return GL_NEAREST;
5062	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5063	/** @todo */
5064	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5065	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5066	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5067	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5068	default:
5069	AssertFailed();
5070	return GL_LINEAR; /* default */
5071	}
5072	}
5073
5074	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5075	{
5076	/* flip the red and blue bytes */
5077	uint8_t blue = value & 0xff;
5078	uint8_t red = (value >> 16) & 0xff;
5079	return (value & 0xff00ff00) \| red \| (blue << 16);
5080	}
5081
5082	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5083	{
5084	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5085	GLenum currentStage = ~(GLenum)0;
5086	PVMSVGA3DCONTEXT pContext;
5087	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5088	AssertReturn(pState, VERR_NO_MEMORY);
5089
5090	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5091
5092	if ( cid >= pState->cContexts
5093	\|\| pState->papContexts[cid]->id != cid)
5094	{
5095	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5096	return VERR_INVALID_PARAMETER;
5097	}
5098	pContext = pState->papContexts[cid];
5099	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5100
5101	for (unsigned i = 0; i < cTextureStates; i++)
5102	{
5103	GLenum textureType = ~(GLenum)0;
5104	#if 0
5105	GLenum samplerType = ~(GLenum)0;
5106	#endif
5107
5108	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));
5109	/* Record the texture state for vm state saving. */
5110	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5111	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5112	{
5113	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5114	}
5115
5116	/* Active the right texture unit for subsequent texture state changes. */
5117	if (pTextureState[i].stage != currentStage \|\| i == 0)
5118	{
5119	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5120	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5121	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5122	{
5123	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5125	currentStage = pTextureState[i].stage;
5126	}
5127	else
5128	{
5129	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5130	continue;
5131	}
5132	}
5133
5134	switch (pTextureState[i].name)
5135	{
5136	case SVGA3D_TS_BUMPENVMAT00: /* float */
5137	case SVGA3D_TS_BUMPENVMAT01: /* float */
5138	case SVGA3D_TS_BUMPENVMAT10: /* float */
5139	case SVGA3D_TS_BUMPENVMAT11: /* float */
5140	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5141	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5142	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5143	break;
5144
5145	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5146	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5147	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5148	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5149	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5150	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5151	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5152	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5153	/** @todo not used by MesaGL */
5154	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5155	break;
5156	#if 0
5157
5158	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5159	textureType = D3DTSS_TEXCOORDINDEX;
5160	val = pTextureState[i].value;
5161	break;
5162
5163	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5164	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5165	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5166	break;
5167	#endif
5168
5169	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5170	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5171	{
5172	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5173	currentStage, pTextureState[i].value, pContext->aSidActiveTextures[currentStage]));
5174
5175	pContext->aSidActiveTextures[currentStage] = SVGA3D_INVALID_ID;
5176	/* Unselect the currently associated texture. */
5177	glBindTexture(GL_TEXTURE_2D, 0);
5178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5179	/* Necessary for the fixed pipeline. */
5180	glDisable(GL_TEXTURE_2D);
5181	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5182	}
5183	else
5184	{
5185	uint32_t sid = pTextureState[i].value;
5186
5187	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5188	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5189
5190	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5191
5192	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5193	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].mipmapSize.width,
5194	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5195
5196	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5197	{
5198	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5199	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5200	AssertRCReturn(rc, rc);
5201	}
5202
5203	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5205
5206	/* Necessary for the fixed pipeline. */
5207	glEnable(GL_TEXTURE_2D);
5208	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5209
5210	if (pContext->aSidActiveTextures[currentStage] != sid)
5211	{
5212	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5213	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5214	{
5215	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5216	{
5217	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5218
5219	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5220	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5221	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5222	}
5223	}
5224	}
5225	pContext->aSidActiveTextures[currentStage] = sid;
5226	}
5227	/* Finished; continue with the next one. */
5228	continue;
5229
5230	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5231	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5232	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5233	break;
5234
5235	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5236	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5237	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5238	break;
5239
5240	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5241	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5242	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5243	break;
5244
5245	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5246	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5247	{
5248	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5249	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5250
5251	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5252	textureType = GL_TEXTURE_MIN_FILTER;
5253	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5254	{
5255	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5256	{
5257	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5258	val = GL_NEAREST_MIPMAP_LINEAR;
5259	else
5260	val = GL_NEAREST_MIPMAP_NEAREST;
5261	}
5262	else
5263	{
5264	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5265	val = GL_LINEAR_MIPMAP_LINEAR;
5266	else
5267	val = GL_LINEAR_MIPMAP_NEAREST;
5268	}
5269	}
5270	else
5271	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5272	break;
5273	}
5274
5275	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5276	textureType = GL_TEXTURE_MAG_FILTER;
5277	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5278	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5279	break;
5280
5281	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5282	{
5283	GLfloat color[4]; /* red, green, blue, alpha */
5284
5285	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5286
5287	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5288	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5289	break;
5290	}
5291
5292	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5293	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); / Identical; default 0.0 identical too */
5294	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5295	break;
5296
5297	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5298	textureType = GL_TEXTURE_MAX_LEVEL;
5299	val = pTextureState[i].value;
5300	break;
5301
5302	#if 0
5303	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5304	samplerType = D3DSAMP_MAXANISOTROPY;
5305	val = pTextureState[i].value; /* Identical?? */
5306	break;
5307
5308	case SVGA3D_TS_GAMMA: /* float */
5309	samplerType = D3DSAMP_SRGBTEXTURE;
5310	/* Boolean in D3D */
5311	if (pTextureState[i].floatValue == 1.0f)
5312	val = FALSE;
5313	else
5314	val = TRUE;
5315	break;
5316	#endif
5317	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5318	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5319	AssertFailed();
5320	break;
5321
5322	default:
5323	//AssertFailed();
5324	break;
5325	}
5326
5327	if (textureType != ~(GLenum)0)
5328	{
5329	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5330	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5331	}
5332	}
5333
5334	return VINF_SUCCESS;
5335	}
5336
5337	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5338	{
5339	PVMSVGA3DCONTEXT pContext;
5340	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5341	AssertReturn(pState, VERR_NO_MEMORY);
5342	GLenum oglFace;
5343
5344	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5345
5346	if ( cid >= pState->cContexts
5347	\|\| pState->papContexts[cid]->id != cid)
5348	{
5349	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5350	return VERR_INVALID_PARAMETER;
5351	}
5352	pContext = pState->papContexts[cid];
5353	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5354
5355	switch (face)
5356	{
5357	case SVGA3D_FACE_NONE:
5358	case SVGA3D_FACE_FRONT:
5359	oglFace = GL_FRONT;
5360	break;
5361
5362	case SVGA3D_FACE_BACK:
5363	oglFace = GL_BACK;
5364	break;
5365
5366	case SVGA3D_FACE_FRONT_BACK:
5367	oglFace = GL_FRONT_AND_BACK;
5368	break;
5369
5370	default:
5371	AssertFailedReturn(VERR_INVALID_PARAMETER);
5372	}
5373
5374	/* Save for vm state save/restore. */
5375	pContext->state.aMaterial[face].fValid = true;
5376	pContext->state.aMaterial[face].material = *pMaterial;
5377	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5378
5379	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5380	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5381	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5382	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5383	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5384	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5385
5386	return VINF_SUCCESS;
5387	}
5388
5389	/** @todo Move into separate library as we are using logic from Wine here. */
5390	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5391	{
5392	PVMSVGA3DCONTEXT pContext;
5393	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5394	AssertReturn(pState, VERR_NO_MEMORY);
5395	float QuadAttenuation;
5396
5397	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5398
5399	if ( cid >= pState->cContexts
5400	\|\| pState->papContexts[cid]->id != cid)
5401	{
5402	Log(("vmsvga3dSetLightData invalid context id!\n"));
5403	return VERR_INVALID_PARAMETER;
5404	}
5405	pContext = pState->papContexts[cid];
5406	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5407
5408	/* Store for vm state save/restore */
5409	if (index < SVGA3D_MAX_LIGHTS)
5410	{
5411	pContext->state.aLightData[index].fValidData = true;
5412	pContext->state.aLightData[index].data = *pData;
5413	}
5414	else
5415	AssertFailed();
5416
5417	if ( pData->attenuation0 < 0.0f
5418	\|\| pData->attenuation1 < 0.0f
5419	\|\| pData->attenuation2 < 0.0f)
5420	{
5421	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5422	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5423	}
5424
5425	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5426	glMatrixMode(GL_MODELVIEW);
5427	glPushMatrix();
5428	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5429
5430	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5431	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5432	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5433
5434	if (pData->range * pData->range >= FLT_MIN)
5435	QuadAttenuation = 1.4f / (pData->range * pData->range);
5436	else
5437	QuadAttenuation = 0.0f;
5438
5439	switch (pData->type)
5440	{
5441	case SVGA3D_LIGHTTYPE_POINT:
5442	{
5443	GLfloat position[4];
5444
5445	position[0] = pData->position[0];
5446	position[1] = pData->position[1];
5447	position[2] = pData->position[2];
5448	position[3] = 1.0f;
5449
5450	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5451	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5452
5453	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
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_SPOT1:
5471	{
5472	GLfloat exponent;
5473	GLfloat position[4];
5474	const GLfloat pi = 4.0f * atanf(1.0f);
5475
5476	position[0] = pData->position[0];
5477	position[1] = pData->position[1];
5478	position[2] = pData->position[2];
5479	position[3] = 1.0f;
5480
5481	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5482	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5483
5484	position[0] = pData->direction[0];
5485	position[1] = pData->direction[1];
5486	position[2] = pData->direction[2];
5487	position[3] = 1.0f;
5488
5489	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5490	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5491
5492	/*
5493	* opengl-ish and d3d-ish spot lights use too different models for the
5494	* light "intensity" as a function of the angle towards the main light direction,
5495	* so we only can approximate very roughly.
5496	* however spot lights are rather rarely used in games (if ever used at all).
5497	* furthermore if still used, probably nobody pays attention to such details.
5498	*/
5499	if (pData->falloff == 0)
5500	{
5501	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5502	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5503	* will always be 1.0 for both of them, and we don't have to care for the
5504	* rest of the rather complex calculation
5505	*/
5506	exponent = 0.0f;
5507	}
5508	else
5509	{
5510	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5511	if (rho < 0.0001f)
5512	rho = 0.0001f;
5513	exponent = -0.3f/log(cos(rho/2));
5514	}
5515	if (exponent > 128.0f)
5516	exponent = 128.0f;
5517
5518	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5519	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5520
5521	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5522	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5523
5524	/* Attenuation - Are these right? guessing... */
5525	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5526	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5527
5528	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5529	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5530
5531	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5532	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5533
5534	/** @todo range */
5535	break;
5536	}
5537
5538	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5539	{
5540	GLfloat position[4];
5541
5542	position[0] = -pData->direction[0];
5543	position[1] = -pData->direction[1];
5544	position[2] = -pData->direction[2];
5545	position[3] = 0.0f;
5546
5547	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5548	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5549
5550	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5551	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5552
5553	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5554	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5555	break;
5556	}
5557
5558	case SVGA3D_LIGHTTYPE_SPOT2:
5559	default:
5560	Log(("Unsupported light type!!\n"));
5561	return VERR_INVALID_PARAMETER;
5562	}
5563
5564	/* Restore the modelview matrix */
5565	glPopMatrix();
5566
5567	return VINF_SUCCESS;
5568	}
5569
5570	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5571	{
5572	PVMSVGA3DCONTEXT pContext;
5573	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5574	AssertReturn(pState, VERR_NO_MEMORY);
5575
5576	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5577
5578	if ( cid >= pState->cContexts
5579	\|\| pState->papContexts[cid]->id != cid)
5580	{
5581	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5582	return VERR_INVALID_PARAMETER;
5583	}
5584	pContext = pState->papContexts[cid];
5585	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5586
5587	/* Store for vm state save/restore */
5588	if (index < SVGA3D_MAX_LIGHTS)
5589	pContext->state.aLightData[index].fEnabled = !!enabled;
5590	else
5591	AssertFailed();
5592
5593	if (enabled)
5594	{
5595	/* Load the default settings if none have been set yet. */
5596	if (!pContext->state.aLightData[index].fValidData)
5597	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5598	glEnable(GL_LIGHT0 + index);
5599	}
5600	else
5601	glDisable(GL_LIGHT0 + index);
5602
5603	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5604	return VINF_SUCCESS;
5605	}
5606
5607	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5608	{
5609	PVMSVGA3DCONTEXT pContext;
5610	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5611	AssertReturn(pState, VERR_NO_MEMORY);
5612
5613	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5614
5615	if ( cid >= pState->cContexts
5616	\|\| pState->papContexts[cid]->id != cid)
5617	{
5618	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5619	return VERR_INVALID_PARAMETER;
5620	}
5621	pContext = pState->papContexts[cid];
5622	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5623
5624	/* Save for vm state save/restore. */
5625	pContext->state.RectViewPort = *pRect;
5626	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5627
5628	/** @todo y-inversion for partial viewport coordinates? */
5629	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5630	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5631
5632	/* Reset the projection matrix as that relies on the viewport setting. */
5633	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5634	{
5635	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5636	}
5637	else
5638	{
5639	float matrix[16];
5640
5641	/* identity matrix if no matrix set. */
5642	memset(matrix, 0, sizeof(matrix));
5643	matrix[0] = 1.0;
5644	matrix[5] = 1.0;
5645	matrix[10] = 1.0;
5646	matrix[15] = 1.0;
5647	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5648	}
5649
5650	return VINF_SUCCESS;
5651	}
5652
5653	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5654	{
5655	PVMSVGA3DCONTEXT pContext;
5656	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5657	AssertReturn(pState, VERR_NO_MEMORY);
5658	double oglPlane[4];
5659
5660	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)));
5661	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5662
5663	if ( cid >= pState->cContexts
5664	\|\| pState->papContexts[cid]->id != cid)
5665	{
5666	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5667	return VERR_INVALID_PARAMETER;
5668	}
5669	pContext = pState->papContexts[cid];
5670	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5671
5672	/* Store for vm state save/restore. */
5673	pContext->state.aClipPlane[index].fValid = true;
5674	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5675
5676	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5677	oglPlane[0] = (double)plane[0];
5678	oglPlane[1] = (double)plane[1];
5679	oglPlane[2] = (double)plane[2];
5680	oglPlane[3] = (double)plane[3];
5681
5682	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5683	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5684
5685	return VINF_SUCCESS;
5686	}
5687
5688	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5689	{
5690	PVMSVGA3DCONTEXT pContext;
5691	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5692	AssertReturn(pState, VERR_NO_MEMORY);
5693
5694	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5695
5696	if ( cid >= pState->cContexts
5697	\|\| pState->papContexts[cid]->id != cid)
5698	{
5699	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5700	return VERR_INVALID_PARAMETER;
5701	}
5702	pContext = pState->papContexts[cid];
5703	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5704
5705	/* Store for vm state save/restore. */
5706	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5707	pContext->state.RectScissor = *pRect;
5708
5709	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5710	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5711
5712	return VINF_SUCCESS;
5713	}
5714
5715	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5716	{
5717	/* Convert byte color components to float (0-1.0) */
5718	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5719	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5720	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5721	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5722	}
5723
5724	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5725	uint32_t cRects, SVGA3dRect *pRect)
5726	{
5727	GLbitfield mask = 0;
5728	PVMSVGA3DCONTEXT pContext;
5729	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5730	AssertReturn(pState, VERR_NO_MEMORY);
5731	GLboolean fDepthWriteEnabled = GL_FALSE;
5732
5733	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));
5734
5735	if ( cid >= pState->cContexts
5736	\|\| pState->papContexts[cid]->id != cid)
5737	{
5738	Log(("vmsvga3dCommandClear invalid context id!\n"));
5739	return VERR_INVALID_PARAMETER;
5740	}
5741	pContext = pState->papContexts[cid];
5742	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5743
5744	if (clearFlag & SVGA3D_CLEAR_COLOR)
5745	{
5746	GLfloat red, green, blue, alpha;
5747
5748	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5749
5750	/* Set the color clear value. */
5751	glClearColor(red, green, blue, alpha);
5752
5753	mask \|= GL_COLOR_BUFFER_BIT;
5754	}
5755	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5756	{
5757	/** @todo possibly the same problem as with glDepthMask */
5758	glClearStencil(stencil);
5759	mask \|= GL_STENCIL_BUFFER_BIT;
5760	}
5761	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5762	{
5763	glClearDepth((GLdouble)depth);
5764	mask \|= GL_DEPTH_BUFFER_BIT;
5765
5766	/* glClear will not clear the depth buffer if writing is disabled. */
5767	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5768	if (fDepthWriteEnabled == GL_FALSE)
5769	glDepthMask(GL_TRUE);
5770	}
5771
5772	if (cRects)
5773	{
5774	/* Save the current scissor test bit and scissor box. */
5775	glPushAttrib(GL_SCISSOR_BIT);
5776	glEnable(GL_SCISSOR_TEST);
5777	for (unsigned i=0; i < cRects; i++)
5778	{
5779	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));
5780	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5781	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5782	glClear(mask);
5783	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5784	}
5785	/* Restore the old scissor test bit and box */
5786	glPopAttrib();
5787	}
5788	else
5789	{
5790	glClear(mask);
5791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5792	}
5793
5794	/* Restore depth write state. */
5795	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5796	&& fDepthWriteEnabled == GL_FALSE)
5797	glDepthMask(GL_FALSE);
5798
5799	return VINF_SUCCESS;
5800	}
5801
5802	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5803	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5804	{
5805	normalized = GL_FALSE;
5806	switch (identity.type)
5807	{
5808	case SVGA3D_DECLTYPE_FLOAT1:
5809	size = 1;
5810	type = GL_FLOAT;
5811	break;
5812	case SVGA3D_DECLTYPE_FLOAT2:
5813	size = 2;
5814	type = GL_FLOAT;
5815	break;
5816	case SVGA3D_DECLTYPE_FLOAT3:
5817	size = 3;
5818	type = GL_FLOAT;
5819	break;
5820	case SVGA3D_DECLTYPE_FLOAT4:
5821	size = 4;
5822	type = GL_FLOAT;
5823	break;
5824
5825	case SVGA3D_DECLTYPE_D3DCOLOR:
5826	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5827	type = GL_UNSIGNED_BYTE;
5828	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5829	break;
5830
5831	case SVGA3D_DECLTYPE_UBYTE4N:
5832	normalized = GL_TRUE;
5833	RT_FALL_THRU();
5834	case SVGA3D_DECLTYPE_UBYTE4:
5835	size = 4;
5836	type = GL_UNSIGNED_BYTE;
5837	break;
5838
5839	case SVGA3D_DECLTYPE_SHORT2N:
5840	normalized = GL_TRUE;
5841	RT_FALL_THRU();
5842	case SVGA3D_DECLTYPE_SHORT2:
5843	size = 2;
5844	type = GL_SHORT;
5845	break;
5846
5847	case SVGA3D_DECLTYPE_SHORT4N:
5848	normalized = GL_TRUE;
5849	RT_FALL_THRU();
5850	case SVGA3D_DECLTYPE_SHORT4:
5851	size = 4;
5852	type = GL_SHORT;
5853	break;
5854
5855	case SVGA3D_DECLTYPE_USHORT4N:
5856	normalized = GL_TRUE;
5857	size = 4;
5858	type = GL_UNSIGNED_SHORT;
5859	break;
5860
5861	case SVGA3D_DECLTYPE_USHORT2N:
5862	normalized = GL_TRUE;
5863	size = 2;
5864	type = GL_UNSIGNED_SHORT;
5865	break;
5866
5867	case SVGA3D_DECLTYPE_UDEC3:
5868	size = 3;
5869	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5870	break;
5871
5872	case SVGA3D_DECLTYPE_DEC3N:
5873	normalized = true;
5874	size = 3;
5875	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5876	break;
5877
5878	case SVGA3D_DECLTYPE_FLOAT16_2:
5879	size = 2;
5880	type = GL_HALF_FLOAT;
5881	break;
5882	case SVGA3D_DECLTYPE_FLOAT16_4:
5883	size = 4;
5884	type = GL_HALF_FLOAT;
5885	break;
5886	default:
5887	AssertFailedReturn(VERR_INVALID_PARAMETER);
5888	}
5889
5890	//pVertexElement->Method = identity.method;
5891	//pVertexElement->Usage = identity.usage;
5892
5893	return VINF_SUCCESS;
5894	}
5895
5896	/* Convert VMWare primitive type to its OpenGL equivalent. */
5897	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5898	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5899	{
5900	switch (PrimitiveType)
5901	{
5902	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5903	*pMode = GL_TRIANGLES;
5904	pcVertices = cPrimitiveCount 3;
5905	break;
5906	case SVGA3D_PRIMITIVE_POINTLIST:
5907	*pMode = GL_POINTS;
5908	*pcVertices = cPrimitiveCount;
5909	break;
5910	case SVGA3D_PRIMITIVE_LINELIST:
5911	*pMode = GL_LINES;
5912	pcVertices = cPrimitiveCount 2;
5913	break;
5914	case SVGA3D_PRIMITIVE_LINESTRIP:
5915	*pMode = GL_LINE_STRIP;
5916	*pcVertices = cPrimitiveCount + 1;
5917	break;
5918	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5919	*pMode = GL_TRIANGLE_STRIP;
5920	*pcVertices = cPrimitiveCount + 2;
5921	break;
5922	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5923	*pMode = GL_TRIANGLE_FAN;
5924	*pcVertices = cPrimitiveCount + 2;
5925	break;
5926	default:
5927	return VERR_INVALID_PARAMETER;
5928	}
5929	return VINF_SUCCESS;
5930	}
5931
5932	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5933	{
5934	int rc;
5935
5936	/* Reset the view matrix (also takes the world matrix into account). */
5937	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5938	{
5939	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5940	}
5941	else
5942	{
5943	float matrix[16];
5944
5945	/* identity matrix if no matrix set. */
5946	memset(matrix, 0, sizeof(matrix));
5947	matrix[0] = 1.0;
5948	matrix[5] = 1.0;
5949	matrix[10] = 1.0;
5950	matrix[15] = 1.0;
5951	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5952	}
5953
5954	/* Reset the projection matrix. */
5955	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5956	{
5957	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5958	}
5959	else
5960	{
5961	float matrix[16];
5962
5963	/* identity matrix if no matrix set. */
5964	memset(matrix, 0, sizeof(matrix));
5965	matrix[0] = 1.0;
5966	matrix[5] = 1.0;
5967	matrix[10] = 1.0;
5968	matrix[15] = 1.0;
5969	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5970	}
5971	AssertRC(rc);
5972	return rc;
5973	}
5974
5975	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5976	{
5977	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5978	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5979	PVMSVGA3DSURFACE pVertexSurface;
5980
5981	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5982	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5983
5984	pVertexSurface = pState->papSurfaces[sidVertex];
5985	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5986
5987	/* Create and/or bind the vertex buffer. */
5988	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5989	{
5990	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5991	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5992	pContext = &pState->SharedCtx;
5993	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5994
5995	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5996	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5997
5998	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5999	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6000
6001	Assert(pVertexSurface->fDirty);
6002	/** @todo rethink usage dynamic/static */
6003	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6004	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6005
6006	pVertexSurface->pMipmapLevels[0].fDirty = false;
6007	pVertexSurface->fDirty = false;
6008
6009	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6010
6011	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6012	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6013
6014	pContext = pSavedCtx;
6015	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6016	}
6017
6018	Assert(pVertexSurface->fDirty == false);
6019	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6020	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6021
6022	/* Setup the vertex declarations. */
6023	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6024	{
6025	GLint size;
6026	GLenum type;
6027	GLboolean normalized;
6028	GLuint index = iVertexDeclBase + iVertex;
6029
6030	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));
6031
6032	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6033	AssertRCReturn(rc, rc);
6034
6035	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6036	{
6037	/* Use numbered vertex arrays when shaders are active. */
6038	pState->ext.glEnableVertexAttribArray(index);
6039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6040	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6041	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6043	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6044	}
6045	else
6046	{
6047	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6048	switch (pVertexDecl[iVertex].identity.usage)
6049	{
6050	case SVGA3D_DECLUSAGE_POSITIONT:
6051	case SVGA3D_DECLUSAGE_POSITION:
6052	{
6053	glEnableClientState(GL_VERTEX_ARRAY);
6054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6055	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6056	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6057	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6058	break;
6059	}
6060	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6061	AssertFailed();
6062	break;
6063	case SVGA3D_DECLUSAGE_BLENDINDICES:
6064	AssertFailed();
6065	break;
6066	case SVGA3D_DECLUSAGE_NORMAL:
6067	glEnableClientState(GL_NORMAL_ARRAY);
6068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6069	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6070	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6071	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6072	break;
6073	case SVGA3D_DECLUSAGE_PSIZE:
6074	AssertFailed();
6075	break;
6076	case SVGA3D_DECLUSAGE_TEXCOORD:
6077	/* Specify the affected texture unit. */
6078	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6079	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6080	#else
6081	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6082	#endif
6083	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6085	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6086	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6088	break;
6089	case SVGA3D_DECLUSAGE_TANGENT:
6090	AssertFailed();
6091	break;
6092	case SVGA3D_DECLUSAGE_BINORMAL:
6093	AssertFailed();
6094	break;
6095	case SVGA3D_DECLUSAGE_TESSFACTOR:
6096	AssertFailed();
6097	break;
6098	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6099	glEnableClientState(GL_COLOR_ARRAY);
6100	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6101	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6102	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6104	break;
6105	case SVGA3D_DECLUSAGE_FOG:
6106	glEnableClientState(GL_FOG_COORD_ARRAY);
6107	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6108	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6109	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6111	break;
6112	case SVGA3D_DECLUSAGE_DEPTH:
6113	AssertFailed();
6114	break;
6115	case SVGA3D_DECLUSAGE_SAMPLE:
6116	AssertFailed();
6117	break;
6118	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6119	}
6120	}
6121
6122	#ifdef LOG_ENABLED
6123	if (pVertexDecl[iVertex].array.stride == 0)
6124	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6125	#endif
6126	}
6127
6128	return VINF_SUCCESS;
6129	}
6130
6131	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6132	{
6133	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6134
6135	/* Clean up the vertex declarations. */
6136	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6137	{
6138	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6139	{
6140	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6141	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6142	vmsvga3dResetTransformMatrices(pThis, pContext);
6143	}
6144
6145	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6146	{
6147	/* Use numbered vertex arrays when shaders are active. */
6148	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6150	}
6151	else
6152	{
6153	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6154	switch (pVertexDecl[iVertex].identity.usage)
6155	{
6156	case SVGA3D_DECLUSAGE_POSITION:
6157	case SVGA3D_DECLUSAGE_POSITIONT:
6158	glDisableClientState(GL_VERTEX_ARRAY);
6159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6160	break;
6161	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6162	break;
6163	case SVGA3D_DECLUSAGE_BLENDINDICES:
6164	break;
6165	case SVGA3D_DECLUSAGE_NORMAL:
6166	glDisableClientState(GL_NORMAL_ARRAY);
6167	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6168	break;
6169	case SVGA3D_DECLUSAGE_PSIZE:
6170	break;
6171	case SVGA3D_DECLUSAGE_TEXCOORD:
6172	/* Specify the affected texture unit. */
6173	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6174	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6175	#else
6176	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6177	#endif
6178	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6180	break;
6181	case SVGA3D_DECLUSAGE_TANGENT:
6182	break;
6183	case SVGA3D_DECLUSAGE_BINORMAL:
6184	break;
6185	case SVGA3D_DECLUSAGE_TESSFACTOR:
6186	break;
6187	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6188	glDisableClientState(GL_COLOR_ARRAY);
6189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6190	break;
6191	case SVGA3D_DECLUSAGE_FOG:
6192	glDisableClientState(GL_FOG_COORD_ARRAY);
6193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6194	break;
6195	case SVGA3D_DECLUSAGE_DEPTH:
6196	break;
6197	case SVGA3D_DECLUSAGE_SAMPLE:
6198	break;
6199	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6200	}
6201	}
6202	}
6203	/* Unbind the vertex buffer after usage. */
6204	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6205	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6206	return VINF_SUCCESS;
6207	}
6208
6209	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6210	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6211	SVGA3dVertexDivisor *pVertexDivisor)
6212	{
6213	RT_NOREF(pVertexDivisor);
6214	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6215	AssertReturn(pState, VERR_INTERNAL_ERROR);
6216	PVMSVGA3DCONTEXT pContext;
6217	int rc = VERR_NOT_IMPLEMENTED;
6218	uint32_t iCurrentVertex;
6219
6220	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6221
6222	/* Caller already check these, but it cannot hurt to check again... */
6223	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6224	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6225	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6226
6227	/** @todo Non-zero cVertexDivisor */
6228	Assert(!cVertexDivisor);
6229
6230	if ( cid >= pState->cContexts
6231	\|\| pState->papContexts[cid]->id != cid)
6232	{
6233	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6234	return VERR_INVALID_PARAMETER;
6235	}
6236	pContext = pState->papContexts[cid];
6237	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6238
6239	/* Check for pretransformed vertex declarations. */
6240	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6241	{
6242	switch (pVertexDecl[iVertex].identity.usage)
6243	{
6244	case SVGA3D_DECLUSAGE_POSITIONT:
6245	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6246	RT_FALL_THRU();
6247	case SVGA3D_DECLUSAGE_POSITION:
6248	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6249	pContext->state.RectViewPort.h,
6250	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6251	break;
6252	default: /* Shut up MSC. */ break;
6253	}
6254	}
6255
6256	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6257	if (pContext->pShaderContext)
6258	{
6259	uint32_t rtHeight = 0;
6260
6261	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6262	{
6263	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6264	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6265	}
6266
6267	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6268	}
6269
6270	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6271	iCurrentVertex = 0;
6272	while (iCurrentVertex < numVertexDecls)
6273	{
6274	uint32_t sidVertex = SVGA_ID_INVALID;
6275	uint32_t iVertex;
6276
6277	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6278	{
6279	if ( sidVertex != SVGA_ID_INVALID
6280	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6281	)
6282	break;
6283	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6284	}
6285
6286	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6287	AssertRCReturn(rc, rc);
6288
6289	iCurrentVertex = iVertex;
6290	}
6291
6292	/* Now draw the primitives. */
6293	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6294	{
6295	GLenum modeDraw;
6296	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6297	PVMSVGA3DSURFACE pIndexSurface = NULL;
6298	unsigned cVertices;
6299
6300	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6301	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6302	if (RT_FAILURE(rc))
6303	{
6304	AssertRC(rc);
6305	goto internal_error;
6306	}
6307
6308	if (sidIndex != SVGA3D_INVALID_ID)
6309	{
6310	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6311
6312	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6313	\|\| sidIndex >= pState->cSurfaces
6314	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6315	{
6316	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6317	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6318	rc = VERR_INVALID_PARAMETER;
6319	goto internal_error;
6320	}
6321	pIndexSurface = pState->papSurfaces[sidIndex];
6322	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6323
6324	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6325	{
6326	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6327	pContext = &pState->SharedCtx;
6328	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6329
6330	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6331	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6332
6333	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6334	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6335
6336	Assert(pIndexSurface->fDirty);
6337
6338	/** @todo rethink usage dynamic/static */
6339	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6340	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6341
6342	pIndexSurface->pMipmapLevels[0].fDirty = false;
6343	pIndexSurface->fDirty = false;
6344
6345	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6346
6347	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6348	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6349
6350	pContext = pState->papContexts[cid];
6351	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6352	}
6353	Assert(pIndexSurface->fDirty == false);
6354
6355	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6357	}
6358
6359	if (!pIndexSurface)
6360	{
6361	/* Render without an index buffer */
6362	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6363	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6364	}
6365	else
6366	{
6367	GLenum indexType;
6368
6369	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6370	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6371
6372	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6373	{
6374	indexType = GL_UNSIGNED_BYTE;
6375	}
6376	else
6377	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6378	{
6379	indexType = GL_UNSIGNED_SHORT;
6380	}
6381	else
6382	{
6383	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6384	indexType = GL_UNSIGNED_INT;
6385	}
6386
6387	/* Render with an index buffer */
6388	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));
6389	if (pRange[iPrimitive].indexBias == 0)
6390	glDrawElements(modeDraw,
6391	cVertices,
6392	indexType,
6393	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6394	else
6395	pState->ext.glDrawElementsBaseVertex(modeDraw,
6396	cVertices,
6397	indexType,
6398	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6399	pRange[iPrimitive].indexBias); /* basevertex */
6400
6401	/* Unbind the index buffer after usage. */
6402	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6403	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6404	}
6405	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6406	}
6407
6408	internal_error:
6409
6410	/* Deactivate the vertex declarations. */
6411	iCurrentVertex = 0;
6412	while (iCurrentVertex < numVertexDecls)
6413	{
6414	uint32_t sidVertex = SVGA_ID_INVALID;
6415	uint32_t iVertex;
6416
6417	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6418	{
6419	if ( sidVertex != SVGA_ID_INVALID
6420	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6421	)
6422	break;
6423	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6424	}
6425
6426	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6427	AssertRCReturn(rc, rc);
6428
6429	iCurrentVertex = iVertex;
6430	}
6431	#ifdef DEBUG
6432	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
6433	{
6434	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6435	{
6436	GLint activeTexture = 0;
6437	GLint activeTextureUnit = 0;
6438
6439	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6440	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6441	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6442	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6443
6444	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6445	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6446	pState->ext.glActiveTexture(activeTextureUnit);
6447	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6448
6449	# 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. */
6450	if (pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6451	{
6452	PVMSVGA3DSURFACE pTexture;
6453	pTexture = pState->papSurfaces[pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0]];
6454
6455	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6456	}
6457	# else
6458	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTextures[i]];
6459	AssertMsg(pTexture->id == pContext->aSidActiveTextures[i], ("%x vs %x\n", pTexture->id, pContext->aSidActiveTextures[i]));
6460	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6461	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6462	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6463	# endif
6464	}
6465	}
6466	#endif
6467
6468	#ifdef DEBUG_GFX_WINDOW
6469	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0])
6470	{
6471	SVGA3dCopyRect rect;
6472
6473	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6474	rect.w = pContext->state.RectViewPort.w;
6475	rect.h = pContext->state.RectViewPort.h;
6476	vmsvga3dCommandPresent(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], 0, NULL);
6477	}
6478	#endif
6479
6480	#if 0
6481	/* Dump render target to a bitmap. */
6482	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6483	{
6484	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6485	PVMSVGA3DSURFACE pSurface;
6486	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6487	if (RT_SUCCESS(rc2))
6488	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6489	}
6490	#endif
6491
6492	return rc;
6493	}
6494
6495
6496	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6497	{
6498	PVMSVGA3DCONTEXT pContext;
6499	PVMSVGA3DSHADER pShader;
6500	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6501	AssertReturn(pState, VERR_NO_MEMORY);
6502	int rc;
6503
6504	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6505	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6506
6507	if ( cid >= pState->cContexts
6508	\|\| pState->papContexts[cid]->id != cid)
6509	{
6510	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6511	return VERR_INVALID_PARAMETER;
6512	}
6513	pContext = pState->papContexts[cid];
6514	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6515
6516	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6517	if (type == SVGA3D_SHADERTYPE_VS)
6518	{
6519	if (shid >= pContext->cVertexShaders)
6520	{
6521	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6522	AssertReturn(pvNew, VERR_NO_MEMORY);
6523	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6524	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6525	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6526	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6527	pContext->cVertexShaders = shid + 1;
6528	}
6529	/* If one already exists with this id, then destroy it now. */
6530	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6531	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6532
6533	pShader = &pContext->paVertexShader[shid];
6534	}
6535	else
6536	{
6537	Assert(type == SVGA3D_SHADERTYPE_PS);
6538	if (shid >= pContext->cPixelShaders)
6539	{
6540	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6541	AssertReturn(pvNew, VERR_NO_MEMORY);
6542	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6543	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6544	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6545	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6546	pContext->cPixelShaders = shid + 1;
6547	}
6548	/* If one already exists with this id, then destroy it now. */
6549	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6550	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6551
6552	pShader = &pContext->paPixelShader[shid];
6553	}
6554
6555	memset(pShader, 0, sizeof(*pShader));
6556	pShader->id = shid;
6557	pShader->cid = cid;
6558	pShader->type = type;
6559	pShader->cbData = cbData;
6560	pShader->pShaderProgram = RTMemAllocZ(cbData);
6561	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6562	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6563
6564	#ifdef DUMP_SHADER_DISASSEMBLY
6565	LPD3DXBUFFER pDisassembly;
6566	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6567	if (hr == D3D_OK)
6568	{
6569	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6570	pDisassembly->Release();
6571	}
6572	#endif
6573
6574	switch (type)
6575	{
6576	case SVGA3D_SHADERTYPE_VS:
6577	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6578	break;
6579
6580	case SVGA3D_SHADERTYPE_PS:
6581	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6582	break;
6583
6584	default:
6585	AssertFailedReturn(VERR_INVALID_PARAMETER);
6586	}
6587	if (rc != VINF_SUCCESS)
6588	{
6589	RTMemFree(pShader->pShaderProgram);
6590	memset(pShader, 0, sizeof(*pShader));
6591	pShader->id = SVGA3D_INVALID_ID;
6592	}
6593
6594	return rc;
6595	}
6596
6597	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6598	{
6599	PVMSVGA3DCONTEXT pContext;
6600	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6601	AssertReturn(pState, VERR_NO_MEMORY);
6602	PVMSVGA3DSHADER pShader = NULL;
6603	int rc;
6604
6605	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6606
6607	if ( cid >= pState->cContexts
6608	\|\| pState->papContexts[cid]->id != cid)
6609	{
6610	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6611	return VERR_INVALID_PARAMETER;
6612	}
6613	pContext = pState->papContexts[cid];
6614	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6615
6616	if (type == SVGA3D_SHADERTYPE_VS)
6617	{
6618	if ( shid < pContext->cVertexShaders
6619	&& pContext->paVertexShader[shid].id == shid)
6620	{
6621	pShader = &pContext->paVertexShader[shid];
6622	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6623	AssertRC(rc);
6624	}
6625	}
6626	else
6627	{
6628	Assert(type == SVGA3D_SHADERTYPE_PS);
6629	if ( shid < pContext->cPixelShaders
6630	&& pContext->paPixelShader[shid].id == shid)
6631	{
6632	pShader = &pContext->paPixelShader[shid];
6633	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6634	AssertRC(rc);
6635	}
6636	}
6637
6638	if (pShader)
6639	{
6640	if (pShader->pShaderProgram)
6641	RTMemFree(pShader->pShaderProgram);
6642	memset(pShader, 0, sizeof(*pShader));
6643	pShader->id = SVGA3D_INVALID_ID;
6644	}
6645	else
6646	AssertFailedReturn(VERR_INVALID_PARAMETER);
6647
6648	return VINF_SUCCESS;
6649	}
6650
6651	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6652	{
6653	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6654	AssertReturn(pState, VERR_NO_MEMORY);
6655	int rc;
6656
6657	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6658
6659	if ( !pContext
6660	&& cid < pState->cContexts
6661	&& pState->papContexts[cid]->id == cid)
6662	pContext = pState->papContexts[cid];
6663	else if (!pContext)
6664	{
6665	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6666	Log(("vmsvga3dShaderSet invalid context id!\n"));
6667	return VERR_INVALID_PARAMETER;
6668	}
6669	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6670
6671	if (type == SVGA3D_SHADERTYPE_VS)
6672	{
6673	/* Save for vm state save/restore. */
6674	pContext->state.shidVertex = shid;
6675	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6676
6677	if ( shid < pContext->cVertexShaders
6678	&& pContext->paVertexShader[shid].id == shid)
6679	{
6680	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6681	Assert(type == pShader->type);
6682
6683	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6684	AssertRCReturn(rc, rc);
6685	}
6686	else
6687	if (shid == SVGA_ID_INVALID)
6688	{
6689	/* Unselect shader. */
6690	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6691	AssertRCReturn(rc, rc);
6692	}
6693	else
6694	AssertFailedReturn(VERR_INVALID_PARAMETER);
6695	}
6696	else
6697	{
6698	/* Save for vm state save/restore. */
6699	pContext->state.shidPixel = shid;
6700	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6701
6702	Assert(type == SVGA3D_SHADERTYPE_PS);
6703	if ( shid < pContext->cPixelShaders
6704	&& pContext->paPixelShader[shid].id == shid)
6705	{
6706	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6707	Assert(type == pShader->type);
6708
6709	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6710	AssertRCReturn(rc, rc);
6711	}
6712	else
6713	if (shid == SVGA_ID_INVALID)
6714	{
6715	/* Unselect shader. */
6716	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6717	AssertRCReturn(rc, rc);
6718	}
6719	else
6720	AssertFailedReturn(VERR_INVALID_PARAMETER);
6721	}
6722
6723	return VINF_SUCCESS;
6724	}
6725
6726	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6727	{
6728	PVMSVGA3DCONTEXT pContext;
6729	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6730	AssertReturn(pState, VERR_NO_MEMORY);
6731	int rc;
6732
6733	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6734
6735	if ( cid >= pState->cContexts
6736	\|\| pState->papContexts[cid]->id != cid)
6737	{
6738	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6739	return VERR_INVALID_PARAMETER;
6740	}
6741	pContext = pState->papContexts[cid];
6742	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6743
6744	for (uint32_t i = 0; i < cRegisters; i++)
6745	{
6746	#ifdef LOG_ENABLED
6747	switch (ctype)
6748	{
6749	case SVGA3D_CONST_TYPE_FLOAT:
6750	{
6751	float pValuesF = (float )pValues;
6752	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)));
6753	break;
6754	}
6755
6756	case SVGA3D_CONST_TYPE_INT:
6757	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6758	break;
6759
6760	case SVGA3D_CONST_TYPE_BOOL:
6761	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6762	break;
6763	}
6764	#endif
6765	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6766	}
6767
6768	switch (type)
6769	{
6770	case SVGA3D_SHADERTYPE_VS:
6771	switch (ctype)
6772	{
6773	case SVGA3D_CONST_TYPE_FLOAT:
6774	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6775	break;
6776
6777	case SVGA3D_CONST_TYPE_INT:
6778	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6779	break;
6780
6781	case SVGA3D_CONST_TYPE_BOOL:
6782	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6783	break;
6784
6785	default:
6786	AssertFailedReturn(VERR_INVALID_PARAMETER);
6787	}
6788	AssertRCReturn(rc, rc);
6789	break;
6790
6791	case SVGA3D_SHADERTYPE_PS:
6792	switch (ctype)
6793	{
6794	case SVGA3D_CONST_TYPE_FLOAT:
6795	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6796	break;
6797
6798	case SVGA3D_CONST_TYPE_INT:
6799	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6800	break;
6801
6802	case SVGA3D_CONST_TYPE_BOOL:
6803	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6804	break;
6805
6806	default:
6807	AssertFailedReturn(VERR_INVALID_PARAMETER);
6808	}
6809	AssertRCReturn(rc, rc);
6810	break;
6811
6812	default:
6813	AssertFailedReturn(VERR_INVALID_PARAMETER);
6814	}
6815
6816	return VINF_SUCCESS;
6817	}
6818
6819	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6820	{
6821	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6822	GLuint idQuery = 0;
6823	pState->ext.glGenQueries(1, &idQuery);
6824	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6825	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6826	pContext->occlusion.idQuery = idQuery;
6827	return VINF_SUCCESS;
6828	}
6829
6830	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6831	{
6832	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6833	if (pContext->occlusion.idQuery)
6834	{
6835	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6836	}
6837	return VINF_SUCCESS;
6838	}
6839
6840	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6841	{
6842	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6843	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6844	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6845	return VINF_SUCCESS;
6846	}
6847
6848	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6849	{
6850	RT_NOREF(pContext);
6851	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6852	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6853	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6854	return VINF_SUCCESS;
6855	}
6856
6857	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6858	{
6859	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6860	GLuint pixels = 0;
6861	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6862	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6863
6864	*pu32Pixels = (uint32_t)pixels;
6865	return VINF_SUCCESS;
6866	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 73238

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