DevVGA-SVGA3d-ogl.cpp@ 69304

Last change on this file since 69304 was 69294, checked in by vboxsync, 7 years ago
Devices/Graphics: scm cleanups
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 69294 2017-10-25 12:25:43Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#define MANUAL_FLIP_SURFACE_DATA
91	/* Enable to render the result of DrawPrimitive in a seperate window. */
92	//#define DEBUG_GFX_WINDOW
93
94
95	/**
96	* Macro for doing something and then checking for errors during initialization.
97	* Uses AssertLogRelMsg.
98	*/
99	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
100	do \
101	{ \
102	a_Expr; \
103	GLenum iGlError = glGetError(); \
104	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
105	} while (0)
106
107	/**
108	* Macro for doing something and then checking for errors during initialization,
109	* doing the same in the other context when enabled.
110	*
111	* This will try both profiles in dual profile builds. Caller must be in the
112	* default context.
113	*
114	* Uses AssertLogRelMsg to indicate trouble.
115	*/
116	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
117	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
118	do \
119	{ \
120	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
121	a_Expr; \
122	GLenum iGlError = glGetError(); \
123	if (iGlError != GL_NO_ERROR) \
124	{ \
125	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError2 = glGetError(); \
129	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
130	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
131	} \
132	} while (0)
133	#else
134	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
135	#endif
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	/* Define the default light parameters as specified by MSDN. */
142	/** @todo move out; fetched from Wine */
143	const SVGA3dLightData vmsvga3d_default_light =
144	{
145	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
146	false, /* inWorldSpace */
147	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
149	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
150	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
151	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
152	0.0f, /* range */
153	0.0f, /* falloff */
154	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
155	0.0f, /* theta */
156	0.0f /* phi */
157	};
158
159
160	/*********************************************************************************************************************************
161	* Internal Functions *
162	*********************************************************************************************************************************/
163	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
164	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
165
166	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
167	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
168
169
170	/**
171	* Checks if the given OpenGL extension is supported.
172	*
173	* @returns true if supported, false if not.
174	* @param pState The VMSVGA3d state.
175	* @param rsMinGLVersion The OpenGL version that introduced this feature
176	* into the core.
177	* @param pszWantedExtension The name of the OpenGL extension we want padded
178	* with one space at each end.
179	* @remarks Init time only.
180	*/
181	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
182	{
183	RT_NOREF(rsMinGLVersion);
184	/* check padding. */
185	Assert(pszWantedExtension[0] == ' ');
186	Assert(pszWantedExtension[1] != ' ');
187	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
188
189	/* Look it up. */
190	bool fRet = false;
191	if (strstr(pState->pszExtensions, pszWantedExtension))
192	fRet = true;
193
194	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( rsMinGLVersion == 0.0
197	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
205	#endif
206	return fRet;
207	}
208
209
210	/**
211	* Outputs GL_EXTENSIONS list to the release log.
212	*/
213	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
214	{
215	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
216	bool fBuffered = RTLogRelSetBuffering(true);
217
218	/*
219	* Determin the column widths first.
220	*/
221	size_t acchWidths[4] = { 1, 1, 1, 1 };
222	uint32_t i;
223	const char *psz = pszExtensions;
224	for (i = 0; ; i++)
225	{
226	while (*psz == ' ')
227	psz++;
228	if (!*psz)
229	break;
230
231	const char *pszEnd = strchr(psz, ' ');
232	AssertBreak(pszEnd);
233	size_t cch = pszEnd - psz;
234
235	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
236	if (acchWidths[iColumn] < cch)
237	acchWidths[iColumn] = cch;
238
239	psz = pszEnd;
240	}
241
242	/*
243	* Output it.
244	*/
245	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
246	psz = pszExtensions;
247	for (i = 0; ; i++)
248	{
249	while (*psz == ' ')
250	psz++;
251	if (!*psz)
252	break;
253
254	const char *pszEnd = strchr(psz, ' ');
255	AssertBreak(pszEnd);
256	size_t cch = pszEnd - psz;
257
258	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
259	if (iColumn == 0)
260	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
261	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
262	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
263	else
264	LogRel((" %.*s", cch, psz));
265
266	psz = pszEnd;
267	}
268
269	RTLogRelSetBuffering(fBuffered);
270	LogRel(("\n"));
271	}
272
273	/**
274	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
275	* @a ppszExtensions.
276	*
277	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
278	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
279	* @param fGLProfileVersion The OpenGL profile version.
280	*/
281	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
282	{
283	int rc;
284	*ppszExtensions = NULL;
285
286	/*
287	* Try the old glGetString interface first.
288	*/
289	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
290	if (pszExtensions)
291	{
292	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
293	AssertLogRelRCReturn(rc, rc);
294	}
295	else
296	{
297	/*
298	* The new interface where each extension string is retrieved separately.
299	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
300	* the above GL_EXTENSIONS error lingers on darwin. sucks.
301	*/
302	#ifndef GL_NUM_EXTENSIONS
303	# define GL_NUM_EXTENSIONS 0x821D
304	#endif
305	GLint cExtensions = 1024;
306	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
307	Assert(cExtensions != 1024);
308
309	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
310	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
311
312	rc = RTStrAAppend(ppszExtensions, " ");
313	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
314	{
315	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
316	if (pszExt)
317	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
318	}
319	AssertRCReturn(rc, rc);
320	}
321
322	#if 1
323	/*
324	* Add extensions promoted into the core OpenGL profile.
325	*/
326	static const struct
327	{
328	float fGLVersion;
329	const char *pszzExtensions;
330	} s_aPromotedExtensions[] =
331	{
332	{
333	1.1f,
334	" GL_EXT_vertex_array \0"
335	" GL_EXT_polygon_offset \0"
336	" GL_EXT_blend_logic_op \0"
337	" GL_EXT_texture \0"
338	" GL_EXT_copy_texture \0"
339	" GL_EXT_subtexture \0"
340	" GL_EXT_texture_object \0"
341	" GL_ARB_framebuffer_object \0"
342	" GL_ARB_map_buffer_range \0"
343	" GL_ARB_vertex_array_object \0"
344	"\0"
345	},
346	{
347	1.2f,
348	" EXT_texture3D \0"
349	" EXT_bgra \0"
350	" EXT_packed_pixels \0"
351	" EXT_rescale_normal \0"
352	" EXT_separate_specular_color \0"
353	" SGIS_texture_edge_clamp \0"
354	" SGIS_texture_lod \0"
355	" EXT_draw_range_elements \0"
356	"\0"
357	},
358	{
359	1.3f,
360	" GL_ARB_texture_compression \0"
361	" GL_ARB_texture_cube_map \0"
362	" GL_ARB_multisample \0"
363	" GL_ARB_multitexture \0"
364	" GL_ARB_texture_env_add \0"
365	" GL_ARB_texture_env_combine \0"
366	" GL_ARB_texture_env_dot3 \0"
367	" GL_ARB_texture_border_clamp \0"
368	" GL_ARB_transpose_matrix \0"
369	"\0"
370	},
371	{
372	1.5f,
373	" GL_SGIS_generate_mipmap \0"
374	/" GL_NV_blend_equare \0"/
375	" GL_ARB_depth_texture \0"
376	" GL_ARB_shadow \0"
377	" GL_EXT_fog_coord \0"
378	" GL_EXT_multi_draw_arrays \0"
379	" GL_ARB_point_parameters \0"
380	" GL_EXT_secondary_color \0"
381	" GL_EXT_blend_func_separate \0"
382	" GL_EXT_stencil_wrap \0"
383	" GL_ARB_texture_env_crossbar \0"
384	" GL_EXT_texture_lod_bias \0"
385	" GL_ARB_texture_mirrored_repeat \0"
386	" GL_ARB_window_pos \0"
387	"\0"
388	},
389	{
390	1.6f,
391	" GL_ARB_vertex_buffer_object \0"
392	" GL_ARB_occlusion_query \0"
393	" GL_EXT_shadow_funcs \0"
394	},
395	{
396	2.0f,
397	" GL_ARB_shader_objects \0" /??/
398	" GL_ARB_vertex_shader \0" /??/
399	" GL_ARB_fragment_shader \0" /??/
400	" GL_ARB_shading_language_100 \0" /??/
401	" GL_ARB_draw_buffers \0"
402	" GL_ARB_texture_non_power_of_two \0"
403	" GL_ARB_point_sprite \0"
404	" GL_ATI_separate_stencil \0"
405	" GL_EXT_stencil_two_side \0"
406	"\0"
407	},
408	{
409	2.1f,
410	" GL_ARB_pixel_buffer_object \0"
411	" GL_EXT_texture_sRGB \0"
412	"\0"
413	},
414	{
415	3.0f,
416	" GL_ARB_framebuffer_object \0"
417	" GL_ARB_map_buffer_range \0"
418	" GL_ARB_vertex_array_object \0"
419	"\0"
420	},
421	{
422	3.1f,
423	" GL_ARB_copy_buffer \0"
424	" GL_ARB_uniform_buffer_object \0"
425	"\0"
426	},
427	{
428	3.2f,
429	" GL_ARB_vertex_array_bgra \0"
430	" GL_ARB_draw_elements_base_vertex \0"
431	" GL_ARB_fragment_coord_conventions \0"
432	" GL_ARB_provoking_vertex \0"
433	" GL_ARB_seamless_cube_map \0"
434	" GL_ARB_texture_multisample \0"
435	" GL_ARB_depth_clamp \0"
436	" GL_ARB_sync \0"
437	" GL_ARB_geometry_shader4 \0" /??/
438	"\0"
439	},
440	{
441	3.3f,
442	" GL_ARB_blend_func_extended \0"
443	" GL_ARB_sampler_objects \0"
444	" GL_ARB_explicit_attrib_location \0"
445	" GL_ARB_occlusion_query2 \0"
446	" GL_ARB_shader_bit_encoding \0"
447	" GL_ARB_texture_rgb10_a2ui \0"
448	" GL_ARB_texture_swizzle \0"
449	" GL_ARB_timer_query \0"
450	" GL_ARB_vertex_type_2_10_10_10_rev \0"
451	"\0"
452	},
453	{
454	4.0f,
455	" GL_ARB_texture_query_lod \0"
456	" GL_ARB_draw_indirect \0"
457	" GL_ARB_gpu_shader5 \0"
458	" GL_ARB_gpu_shader_fp64 \0"
459	" GL_ARB_shader_subroutine \0"
460	" GL_ARB_tessellation_shader \0"
461	" GL_ARB_texture_buffer_object_rgb32 \0"
462	" GL_ARB_texture_cube_map_array \0"
463	" GL_ARB_texture_gather \0"
464	" GL_ARB_transform_feedback2 \0"
465	" GL_ARB_transform_feedback3 \0"
466	"\0"
467	},
468	{
469	4.1f,
470	" GL_ARB_ES2_compatibility \0"
471	" GL_ARB_get_program_binary \0"
472	" GL_ARB_separate_shader_objects \0"
473	" GL_ARB_shader_precision \0"
474	" GL_ARB_vertex_attrib_64bit \0"
475	" GL_ARB_viewport_array \0"
476	"\0"
477	}
478	};
479
480	uint32_t cPromoted = 0;
481	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
482	{
483	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
484	while (*pszExt)
485	{
486	# ifdef VBOX_STRICT
487	size_t cchExt = strlen(pszExt);
488	Assert(cchExt > 3);
489	Assert(pszExt[0] == ' ');
490	Assert(pszExt[1] != ' ');
491	Assert(pszExt[cchExt - 2] != ' ');
492	Assert(pszExt[cchExt - 1] == ' ');
493	# endif
494
495	if (strstr(*ppszExtensions, pszExt) == NULL)
496	{
497	if (cPromoted++ == 0)
498	{
499	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
500	AssertRCReturn(rc, rc);
501	}
502
503	rc = RTStrAAppend(ppszExtensions, pszExt);
504	AssertRCReturn(rc, rc);
505	}
506
507	pszExt = strchr(pszExt, '\0') + 1;
508	}
509	}
510	#endif
511
512	return VINF_SUCCESS;
513	}
514
515	/**
516	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
517	*/
518	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
519	{
520	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
521	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
523	#else
524	NOREF(pThis);
525	NOREF(fOtherProfile);
526	#endif
527	}
528
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
532	*/
533	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
534	char *pszBuf, size_t cbBuf, bool fOtherProfile)
535	{
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
538	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
539	while (*pszCur == ' ')
540	pszCur++;
541	if (!*pszCur)
542	return false;
543
544	const char *pszEnd = strchr(pszCur, ' ');
545	AssertReturn(pszEnd, false);
546	size_t cch = pszEnd - pszCur;
547	if (cch < cbBuf)
548	{
549	memcpy(pszBuf, pszCur, cch);
550	pszBuf[cch] = '\0';
551	}
552	else if (cbBuf > 0)
553	{
554	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
555	pszBuf[cbBuf - 1] = '\0';
556	}
557
558	ppvEnumCtx = (void )pszEnd;
559	return true;
560	}
561
562
563	/**
564	* Initializes the VMSVGA3D state during VGA device construction.
565	*
566	* Failure are generally not fatal, 3D support will just be disabled.
567	*
568	* @returns VBox status code.
569	* @param pThis The VGA device state where svga.p3dState will be modified.
570	*/
571	int vmsvga3dInit(PVGASTATE pThis)
572	{
573	AssertCompile(GL_TRUE == 1);
574	AssertCompile(GL_FALSE == 0);
575
576	/*
577	* Load and resolve imports from the external shared libraries.
578	*/
579	RTERRINFOSTATIC ErrInfo;
580	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
581	if (RT_FAILURE(rc))
582	{
583	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
584	return rc;
585	}
586	#ifdef RT_OS_DARWIN
587	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
588	if (RT_FAILURE(rc))
589	{
590	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
591	return rc;
592	}
593	#endif
594
595	/*
596	* Allocate the state.
597	*/
598	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
599	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
600
601	#ifdef RT_OS_WINDOWS
602	/* Create event semaphore and async IO thread. */
603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
604	rc = RTSemEventCreate(&pState->WndRequestSem);
605	if (RT_SUCCESS(rc))
606	{
607	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
608	"VMSVGA3DWND");
609	if (RT_SUCCESS(rc))
610	return VINF_SUCCESS;
611
612	/* bail out. */
613	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
614	RTSemEventDestroy(pState->WndRequestSem);
615	}
616	else
617	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
618	RTMemFree(pThis->svga.p3dState);
619	pThis->svga.p3dState = NULL;
620	return rc;
621	#else
622	return VINF_SUCCESS;
623	#endif
624	}
625
626	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
627	int vmsvga3dPowerOn(PVGASTATE pThis)
628	{
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
631	PVMSVGA3DCONTEXT pContext;
632	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
633	PVMSVGA3DCONTEXT pOtherCtx;
634	#endif
635	int rc;
636
637	if (pState->rsGLVersion != 0.0)
638	return VINF_SUCCESS; /* already initialized (load state) */
639
640	/*
641	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
642	*/
643	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
644	AssertRCReturn(rc, rc);
645
646	pContext = pState->papContexts[1];
647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
648
649	LogRel(("VMSVGA3d: OpenGL version: %s\n"
650	"VMSVGA3d: OpenGL Vendor: %s\n"
651	"VMSVGA3d: OpenGL Renderer: %s\n"
652	"VMSVGA3d: OpenGL shader language version: %s\n",
653	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
654	glGetString(GL_SHADING_LANGUAGE_VERSION)));
655
656	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
657	AssertRCReturn(rc, rc);
658	vmsvga3dLogRelExtensions("", pState->pszExtensions);
659
660	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
661
662
663	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
664	/*
665	* Get the extension list for the alternative profile so we can better
666	* figure out the shader model and stuff.
667	*/
668	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
669	AssertLogRelRCReturn(rc, rc);
670	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
671
672	pOtherCtx = pState->papContexts[2];
673	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
674
675	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
676	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
677	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
678	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
679	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
680	glGetString(GL_SHADING_LANGUAGE_VERSION)));
681
682	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
683	AssertRCReturn(rc, rc);
684	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
685
686	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
687
688	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
689	#else
690	pState->pszOtherExtensions = (char *)"";
691	pState->rsOtherGLVersion = pState->rsGLVersion;
692	#endif
693
694
695	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
696	{
697	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
698	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
699	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
700	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
701	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
702	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
703	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
704	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
705	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
706	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
707	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
708	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
709	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
710	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
711	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
712	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
713	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
714	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
715	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
716	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
717	}
718	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
719	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
720	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
721	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
722	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
723	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
724	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
725	#endif
726	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
727	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
729	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
731	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
733	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
735	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
737	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
739	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
741	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
743	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
745	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
749	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
751	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
753	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
754	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
755	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
756	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
757	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
758	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
759	#endif
760	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
761	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
762
763	/* OpenGL 3.2 core */
764	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
765	{
766	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
767	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
768	}
769	else
770	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
771
772	/* OpenGL 3.2 core */
773	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
774	{
775	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
776	}
777	else
778	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
779
780	/* Extension support */
781	#if defined(RT_OS_DARWIN)
782	/** @todo OpenGL version history suggest this, verify... */
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
784	#else
785	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
786	#endif
787
788	/*
789	* Initialize the capabilities with sensible defaults.
790	*/
791	pState->caps.maxActiveLights = 1;
792	pState->caps.maxTextureBufferSize = 65536;
793	pState->caps.maxTextures = 1;
794	pState->caps.maxClipDistances = 4;
795	pState->caps.maxColorAttachments = 1;
796	pState->caps.maxRectangleTextureSize = 2048;
797	pState->caps.maxTextureAnisotropy = 2;
798	pState->caps.maxVertexShaderInstructions = 1024;
799	pState->caps.maxFragmentShaderInstructions = 1024;
800	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
801	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
802	pState->caps.flPointSize[0] = 1;
803	pState->caps.flPointSize[1] = 1;
804
805	/*
806	* Query capabilities
807	*/
808	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
809	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
810	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
811	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
812	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
813	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
814	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
815	#else
816	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
817	#endif
818	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
819	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
820	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
821	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
822
823	if (pState->ext.glGetProgramivARB)
824	{
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
826	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
827	&pState->caps.maxFragmentShaderTemps));
828	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
829	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
830	&pState->caps.maxFragmentShaderInstructions));
831	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
832	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
833	&pState->caps.maxVertexShaderTemps));
834	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
835	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
836	&pState->caps.maxVertexShaderInstructions));
837	}
838	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
839
840	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
841	* ARB Assembly Language
842	* These are done through testing the presence of extensions. You should test them in this order:
843	* GL_NV_gpu_program4: SM 4.0 or better.
844	* GL_NV_vertex_program3: SM 3.0 or better.
845	* GL_ARB_fragment_program: SM 2.0 or better.
846	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
847	*
848	*/
849	/** @todo distinguish between vertex and pixel shaders??? */
850	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
851	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
852	if (v >= 3.30f)
853	{
854	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
855	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
856	}
857	else
858	if (v >= 1.20f)
859	{
860	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
861	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
862	}
863	else
864	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
865	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
866	{
867	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
868	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
869	}
870	else
871	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
872	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
873	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
874	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
875	)
876	{
877	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
878	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
879	}
880	else
881	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
882	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
883	{
884	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
885	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
886	}
887	else
888	{
889	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
890	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
891	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
892	}
893
894	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
895	{
896	/** @todo Intel drivers don't support this extension! */
897	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
898	}
899	#if 0
900	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
901	SVGA3D_DEVCAP_QUERY_TYPES = 15,
902	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
903	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
904	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
905	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
906	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
907	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
908	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
909	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
910	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
911	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
912	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
913	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
914	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
915	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
916	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
917	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
918	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
919	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
920	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
921	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
922	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
923	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
924	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
925	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
926	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
927	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
928	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
929	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
930	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
931	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
932	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
933	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
934	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
935	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
936	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
937	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
938	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
939	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
940	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
941	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
942	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
943	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
944	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
945	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
946	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
947	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
948	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
949	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
950	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
951	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
952	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
953	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
954	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
955	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
956	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
957	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
958	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
959	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
960	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
961	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
962	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
963	#endif
964
965	LogRel(("VMSVGA3d: Capabilities:\n"));
966	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
967	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
968	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
969	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
970	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
971	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
972	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
973	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
974	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
975	pState->caps.maxFragmentShaderTemps,
976	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
977	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
978	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
979	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
980
981
982	/* Initialize the shader library. */
983	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
984	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
985	rc = ShaderInitLib(&pState->ShaderIf);
986	AssertRC(rc);
987
988	/* Cleanup */
989	rc = vmsvga3dContextDestroy(pThis, 1);
990	AssertRC(rc);
991	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
992	rc = vmsvga3dContextDestroy(pThis, 2);
993	AssertRC(rc);
994	#endif
995
996	if ( pState->rsGLVersion < 3.0
997	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
998	{
999	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1000	return VERR_NOT_IMPLEMENTED;
1001	}
1002	if ( !pState->ext.glIsRenderbuffer
1003	\|\| !pState->ext.glBindRenderbuffer
1004	\|\| !pState->ext.glDeleteRenderbuffers
1005	\|\| !pState->ext.glGenRenderbuffers
1006	\|\| !pState->ext.glRenderbufferStorage
1007	\|\| !pState->ext.glGetRenderbufferParameteriv
1008	\|\| !pState->ext.glIsFramebuffer
1009	\|\| !pState->ext.glBindFramebuffer
1010	\|\| !pState->ext.glDeleteFramebuffers
1011	\|\| !pState->ext.glGenFramebuffers
1012	\|\| !pState->ext.glCheckFramebufferStatus
1013	\|\| !pState->ext.glFramebufferTexture1D
1014	\|\| !pState->ext.glFramebufferTexture2D
1015	\|\| !pState->ext.glFramebufferTexture3D
1016	\|\| !pState->ext.glFramebufferRenderbuffer
1017	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1018	\|\| !pState->ext.glGenerateMipmap
1019	\|\| !pState->ext.glBlitFramebuffer
1020	\|\| !pState->ext.glRenderbufferStorageMultisample
1021	\|\| !pState->ext.glFramebufferTextureLayer)
1022	{
1023	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1024	return VERR_NOT_IMPLEMENTED;
1025	}
1026
1027	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1028	pState->idTestContext = SVGA_ID_INVALID;
1029	#endif
1030	return VINF_SUCCESS;
1031	}
1032
1033	int vmsvga3dReset(PVGASTATE pThis)
1034	{
1035	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1036	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1037
1038	/* Destroy all leftover surfaces. */
1039	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1040	{
1041	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1042	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1043	}
1044
1045	/* Destroy all leftover contexts. */
1046	for (uint32_t i = 0; i < pState->cContexts; i++)
1047	{
1048	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1049	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1050	}
1051
1052	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1053	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1054
1055	return VINF_SUCCESS;
1056	}
1057
1058	int vmsvga3dTerminate(PVGASTATE pThis)
1059	{
1060	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1061	AssertReturn(pState, VERR_WRONG_ORDER);
1062	int rc;
1063
1064	rc = vmsvga3dReset(pThis);
1065	AssertRCReturn(rc, rc);
1066
1067	/* Terminate the shader library. */
1068	rc = ShaderDestroyLib();
1069	AssertRC(rc);
1070
1071	#ifdef RT_OS_WINDOWS
1072	/* Terminate the window creation thread. */
1073	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1074	AssertRCReturn(rc, rc);
1075
1076	RTSemEventDestroy(pState->WndRequestSem);
1077	#elif defined(RT_OS_DARWIN)
1078
1079	#elif defined(RT_OS_LINUX)
1080	/* signal to the thread that it is supposed to exit */
1081	pState->bTerminate = true;
1082	/* wait for it to terminate */
1083	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1084	AssertRC(rc);
1085	XCloseDisplay(pState->display);
1086	#endif
1087
1088	RTStrFree(pState->pszExtensions);
1089	pState->pszExtensions = NULL;
1090	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1091	RTStrFree(pState->pszOtherExtensions);
1092	#endif
1093	pState->pszOtherExtensions = NULL;
1094
1095	return VINF_SUCCESS;
1096	}
1097
1098
1099	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1100	{
1101	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1102	* redraw it. */
1103
1104	#ifdef RT_OS_DARWIN
1105	RT_NOREF(pOldViewport);
1106	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1107	if ( pState
1108	&& idScreen == 0
1109	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1110	{
1111	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1112	}
1113	#else
1114	RT_NOREF(pThis, idScreen, pOldViewport);
1115	#endif
1116	}
1117
1118
1119	/**
1120	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1121	* given surface format capability.
1122	*
1123	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1124	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1125	*
1126	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1127	* of implicit guest expectations:
1128	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1129	*/
1130	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1131	{
1132	uint32_t result = 0;
1133
1134	/** @todo missing:
1135	*
1136	* SVGA3DFORMAT_OP_PIXELSIZE
1137	*/
1138
1139	switch (idx3dCaps)
1140	{
1141	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1142	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1143	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1144	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1145	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1146	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1147	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1148	break;
1149
1150	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1151	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1152	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1153	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1154	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1155	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1156	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1157	break;
1158	}
1159
1160	/** @todo check hardware caps! */
1161	switch (idx3dCaps)
1162	{
1163	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1164	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1165	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1166	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1167	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1168	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1169	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1170	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1171	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1172	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1173	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1174	result \|= SVGA3DFORMAT_OP_TEXTURE
1175	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1176	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1177	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1178	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1179	\| SVGA3DFORMAT_OP_CUBETEXTURE
1180	\| SVGA3DFORMAT_OP_SRGBREAD
1181	\| SVGA3DFORMAT_OP_SRGBWRITE;
1182	break;
1183
1184	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1185	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1186	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1187	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1188	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1189	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1190	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1191	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1192	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1193	break;
1194
1195	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1196	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1197	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1198	result \|= SVGA3DFORMAT_OP_TEXTURE
1199	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1200	\| SVGA3DFORMAT_OP_CUBETEXTURE
1201	\| SVGA3DFORMAT_OP_SRGBREAD;
1202	break;
1203
1204	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1205	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1206	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1207	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1208	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1209	break;
1210
1211	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1212	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1213	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1214	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1215	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1216	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1217	break;
1218
1219	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1220	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1221	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1222
1223	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1224	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1225	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1226	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1227	break;
1228	}
1229	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1230
1231	return result;
1232	}
1233
1234	#if 0 /* unused */
1235	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1236	{
1237	RT_NOREF(pState3D, idx3dCaps);
1238
1239	/** @todo test this somehow */
1240	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1241
1242	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1243	return result;
1244	}
1245	#endif
1246
1247
1248	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1249	{
1250	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1251	AssertReturn(pState, VERR_NO_MEMORY);
1252	int rc = VINF_SUCCESS;
1253
1254	*pu32Val = 0;
1255
1256	/*
1257	* The capabilities access by current (2015-03-01) linux sources (gallium,
1258	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1259	* aren't access.
1260	*/
1261
1262	switch (idx3dCaps)
1263	{
1264	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1265	case SVGA3D_DEVCAP_3D:
1266	pu32Val = 1; / boolean? */
1267	break;
1268
1269	case SVGA3D_DEVCAP_MAX_LIGHTS:
1270	*pu32Val = pState->caps.maxActiveLights;
1271	break;
1272
1273	case SVGA3D_DEVCAP_MAX_TEXTURES:
1274	*pu32Val = pState->caps.maxTextures;
1275	break;
1276
1277	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1278	*pu32Val = pState->caps.maxClipDistances;
1279	break;
1280
1281	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1282	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1283	*pu32Val = pState->caps.vertexShaderVersion;
1284	break;
1285
1286	case SVGA3D_DEVCAP_VERTEX_SHADER:
1287	/* boolean? */
1288	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1289	break;
1290
1291	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1292	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1293	*pu32Val = pState->caps.fragmentShaderVersion;
1294	break;
1295
1296	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1297	/* boolean? */
1298	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1299	break;
1300
1301	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1302	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1303	/* Must be obsolete by now; surface format caps specify the same thing. */
1304	rc = VERR_INVALID_PARAMETER;
1305	break;
1306
1307	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1308	break;
1309
1310	/*
1311	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1312	* return TRUE. Even on physical hardware that does not support
1313	* these formats natively, the SVGA3D device will provide an emulation
1314	* which should be invisible to the guest OS.
1315	*/
1316	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1317	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1318	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1319	*pu32Val = 1;
1320	break;
1321
1322	case SVGA3D_DEVCAP_QUERY_TYPES:
1323	break;
1324
1325	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1326	break;
1327
1328	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1329	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1330	AssertCompile(sizeof(uint32_t) == sizeof(float));
1331	(float )pu32Val = pState->caps.flPointSize[1];
1332	break;
1333
1334	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1335	/** @todo ?? */
1336	rc = VERR_INVALID_PARAMETER;
1337	break;
1338
1339	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1340	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1341	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1342	*pu32Val = pState->caps.maxRectangleTextureSize;
1343	break;
1344
1345	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1346	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1347	//*pu32Val = pCaps->MaxVolumeExtent;
1348	break;
1349
1350	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1351	pu32Val = 32768; / hardcoded in Wine */
1352	break;
1353
1354	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1355	//*pu32Val = pCaps->MaxTextureAspectRatio;
1356	break;
1357
1358	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1359	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1360	*pu32Val = pState->caps.maxTextureAnisotropy;
1361	break;
1362
1363	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1364	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1365	pu32Val = 0xFFFFF; / hardcoded in Wine */
1366	break;
1367
1368	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1369	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1370	*pu32Val = pState->caps.maxVertexShaderInstructions;
1371	break;
1372
1373	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1374	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1375	break;
1376
1377	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1378	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1379	*pu32Val = pState->caps.maxVertexShaderTemps;
1380	break;
1381
1382	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1383	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1384	*pu32Val = pState->caps.maxFragmentShaderTemps;
1385	break;
1386
1387	case SVGA3D_DEVCAP_TEXTURE_OPS:
1388	break;
1389
1390	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1391	break;
1392
1393	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1394	break;
1395
1396	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1397	break;
1398
1399	case SVGA3D_DEVCAP_SUPERSAMPLE:
1400	break;
1401
1402	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1403	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1404	break;
1405
1406	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1407	break;
1408
1409	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1410	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1411	*pu32Val = pState->caps.maxColorAttachments;
1412	break;
1413
1414	/*
1415	* This is the maximum number of SVGA context IDs that the guest
1416	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1417	*/
1418	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1419	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1420	break;
1421
1422	/*
1423	* This is the maximum number of SVGA surface IDs that the guest
1424	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1425	*/
1426	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1427	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1428	break;
1429
1430	#if 0 /* Appeared more recently, not yet implemented. */
1431	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1432	case SVGA3D_DEVCAP_LINE_AA:
1433	break;
1434	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1435	case SVGA3D_DEVCAP_LINE_STIPPLE:
1436	break;
1437	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1438	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1439	break;
1440	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1441	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1442	break;
1443	#endif
1444
1445	/*
1446	* Supported surface formats.
1447	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1448	*/
1449	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1450	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1451	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1452	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1453	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1454	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1455	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1456	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1457	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1458	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1459	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1460	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1461	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1462	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1463	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1464	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1465	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1466	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1467	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1468	break;
1469
1470	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1471	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1472	pu32Val = 0; / apparently not supported in OpenGL */
1473	break;
1474
1475	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1476	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1477	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1478	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1479	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1480	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1481	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1482	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1483	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1484	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1485	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1486	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1487	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1488	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1489	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1490	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1491	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1492	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1493	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1494	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1495	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1496	break;
1497
1498	/* Linux: Not referenced in current sources. */
1499	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1500	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1501	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1502	rc = VERR_INVALID_PARAMETER;
1503	*pu32Val = 0;
1504	break;
1505
1506	default:
1507	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1508	rc = VERR_INVALID_PARAMETER;
1509	break;
1510	}
1511
1512	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1513	return rc;
1514	}
1515
1516	/**
1517	* Convert SVGA format value to its OpenGL equivalent
1518	*
1519	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1520	* help from wined3dformat_from_d3dformat().
1521	*/
1522	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1523	{
1524	switch (format)
1525	{
1526	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1527	pSurface->internalFormatGL = GL_RGB8;
1528	pSurface->formatGL = GL_BGRA;
1529	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1530	break;
1531	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1532	pSurface->internalFormatGL = GL_RGBA8;
1533	pSurface->formatGL = GL_BGRA;
1534	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1535	break;
1536	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1537	pSurface->internalFormatGL = GL_RGB5;
1538	pSurface->formatGL = GL_RGB;
1539	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1540	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1541	break;
1542	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1543	pSurface->internalFormatGL = GL_RGB5;
1544	pSurface->formatGL = GL_BGRA;
1545	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1546	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1547	break;
1548	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1549	pSurface->internalFormatGL = GL_RGB5_A1;
1550	pSurface->formatGL = GL_BGRA;
1551	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1552	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1553	break;
1554	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1555	pSurface->internalFormatGL = GL_RGBA4;
1556	pSurface->formatGL = GL_BGRA;
1557	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1558	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1559	break;
1560
1561	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1562	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1563	pSurface->formatGL = GL_DEPTH_COMPONENT;
1564	pSurface->typeGL = GL_UNSIGNED_INT;
1565	break;
1566	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1567	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1568	pSurface->formatGL = GL_DEPTH_COMPONENT;
1569	pSurface->typeGL = GL_UNSIGNED_SHORT;
1570	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1571	break;
1572	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1573	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1574	pSurface->formatGL = GL_DEPTH_STENCIL;
1575	pSurface->typeGL = GL_UNSIGNED_INT;
1576	break;
1577	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1578	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1579	pSurface->formatGL = GL_DEPTH_STENCIL;
1580	pSurface->typeGL = GL_UNSIGNED_SHORT;
1581	/** @todo Wine sources hints at no hw support for this, so test this one! */
1582	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1583	break;
1584	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1585	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1586	pSurface->formatGL = GL_DEPTH_COMPONENT;
1587	pSurface->typeGL = GL_UNSIGNED_INT;
1588	break;
1589
1590	/* Advanced D3D9 depth formats. */
1591	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1592	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1593	pSurface->formatGL = GL_DEPTH_COMPONENT;
1594	pSurface->typeGL = GL_FLOAT;
1595	break;
1596
1597	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1598	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1599	pSurface->formatGL = GL_DEPTH_COMPONENT;
1600	pSurface->typeGL = GL_FLOAT; /* ??? */
1601	break;
1602
1603	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1604	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1605	pSurface->formatGL = GL_DEPTH_STENCIL;
1606	pSurface->typeGL = GL_INT; /* ??? */
1607	break;
1608
1609	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1610	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1611	#if 0
1612	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1613	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1614	#else /* wine suggests: */
1615	pSurface->formatGL = GL_RGBA;
1616	pSurface->typeGL = GL_UNSIGNED_BYTE;
1617	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1618	#endif
1619	break;
1620
1621	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1622	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1623	#if 0 /** @todo this needs testing... */
1624	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1625	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1626	#else /* wine suggests: */
1627	pSurface->formatGL = GL_RGBA;
1628	pSurface->typeGL = GL_UNSIGNED_BYTE;
1629	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1630	#endif
1631	break;
1632
1633	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1634	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1635	#if 0 /** @todo this needs testing... */
1636	pSurface->formatGL = GL_RGBA_S3TC;
1637	pSurface->typeGL = GL_UNSIGNED_INT;
1638	#else /* wine suggests: */
1639	pSurface->formatGL = GL_RGBA;
1640	pSurface->typeGL = GL_UNSIGNED_BYTE;
1641	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1642	#endif
1643	break;
1644
1645	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1646	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1647	pSurface->formatGL = GL_LUMINANCE;
1648	pSurface->typeGL = GL_UNSIGNED_BYTE;
1649	break;
1650
1651	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1652	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1653	pSurface->formatGL = GL_LUMINANCE;
1654	pSurface->typeGL = GL_UNSIGNED_SHORT;
1655	break;
1656
1657	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1658	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1659	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1660	pSurface->typeGL = GL_UNSIGNED_BYTE;
1661	break;
1662
1663	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1664	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1665	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1666	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1667	break;
1668
1669	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1670	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1671	pSurface->formatGL = GL_ALPHA;
1672	pSurface->typeGL = GL_UNSIGNED_BYTE;
1673	break;
1674
1675	#if 0
1676
1677	/* Bump-map formats */
1678	case SVGA3D_BUMPU8V8:
1679	return D3DFMT_V8U8;
1680	case SVGA3D_BUMPL6V5U5:
1681	return D3DFMT_L6V5U5;
1682	case SVGA3D_BUMPX8L8V8U8:
1683	return D3DFMT_X8L8V8U8;
1684	case SVGA3D_BUMPL8V8U8:
1685	/* No corresponding D3D9 equivalent. */
1686	AssertFailedReturn(D3DFMT_UNKNOWN);
1687	/* signed bump-map formats */
1688	case SVGA3D_V8U8:
1689	return D3DFMT_V8U8;
1690	case SVGA3D_Q8W8V8U8:
1691	return D3DFMT_Q8W8V8U8;
1692	case SVGA3D_CxV8U8:
1693	return D3DFMT_CxV8U8;
1694	/* mixed bump-map formats */
1695	case SVGA3D_X8L8V8U8:
1696	return D3DFMT_X8L8V8U8;
1697	case SVGA3D_A2W10V10U10:
1698	return D3DFMT_A2W10V10U10;
1699	#endif
1700
1701	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1702	pSurface->internalFormatGL = GL_RGBA16F;
1703	pSurface->formatGL = GL_RGBA;
1704	#if 0 /* bird: wine uses half float, sounds correct to me... */
1705	pSurface->typeGL = GL_FLOAT;
1706	#else
1707	pSurface->typeGL = GL_HALF_FLOAT;
1708	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1709	#endif
1710	break;
1711
1712	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1713	pSurface->internalFormatGL = GL_RGBA32F;
1714	pSurface->formatGL = GL_RGBA;
1715	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1716	break;
1717
1718	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1719	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1720	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1721	pSurface->formatGL = GL_RGBA;
1722	#else
1723	pSurface->formatGL = GL_BGRA;
1724	#endif
1725	pSurface->typeGL = GL_UNSIGNED_INT;
1726	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1727	break;
1728
1729
1730	/* Single- and dual-component floating point formats */
1731	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1732	pSurface->internalFormatGL = GL_R16F;
1733	pSurface->formatGL = GL_RED;
1734	#if 0 /* bird: wine uses half float, sounds correct to me... */
1735	pSurface->typeGL = GL_FLOAT;
1736	#else
1737	pSurface->typeGL = GL_HALF_FLOAT;
1738	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1739	#endif
1740	break;
1741	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1742	pSurface->internalFormatGL = GL_R32F;
1743	pSurface->formatGL = GL_RG;
1744	pSurface->typeGL = GL_FLOAT;
1745	break;
1746	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1747	pSurface->internalFormatGL = GL_RG16F;
1748	pSurface->formatGL = GL_RG;
1749	#if 0 /* bird: wine uses half float, sounds correct to me... */
1750	pSurface->typeGL = GL_FLOAT;
1751	#else
1752	pSurface->typeGL = GL_HALF_FLOAT;
1753	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1754	#endif
1755	break;
1756	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1757	pSurface->internalFormatGL = GL_RG32F;
1758	pSurface->formatGL = GL_RG;
1759	pSurface->typeGL = GL_FLOAT;
1760	break;
1761
1762	/*
1763	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1764	* the most efficient format to use when creating new surfaces
1765	* expressly for index or vertex data.
1766	*/
1767	case SVGA3D_BUFFER:
1768	pSurface->internalFormatGL = -1;
1769	pSurface->formatGL = -1;
1770	pSurface->typeGL = -1;
1771	break;
1772
1773	#if 0
1774	return D3DFMT_UNKNOWN;
1775
1776	case SVGA3D_V16U16:
1777	return D3DFMT_V16U16;
1778	#endif
1779
1780	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1781	pSurface->internalFormatGL = GL_RG16;
1782	pSurface->formatGL = GL_RG;
1783	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1784	pSurface->typeGL = GL_UNSIGNED_INT;
1785	#else
1786	pSurface->typeGL = GL_UNSIGNED_SHORT;
1787	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1788	#endif
1789	break;
1790
1791	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1792	pSurface->internalFormatGL = GL_RGBA16;
1793	pSurface->formatGL = GL_RGBA;
1794	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1795	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1796	#else
1797	pSurface->typeGL = GL_UNSIGNED_SHORT;
1798	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1799	#endif
1800	break;
1801
1802	#if 0
1803	/* Packed Video formats */
1804	case SVGA3D_UYVY:
1805	return D3DFMT_UYVY;
1806	case SVGA3D_YUY2:
1807	return D3DFMT_YUY2;
1808
1809	/* Planar video formats */
1810	case SVGA3D_NV12:
1811	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1812
1813	/* Video format with alpha */
1814	case SVGA3D_AYUV:
1815	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1816
1817	case SVGA3D_BC4_UNORM:
1818	case SVGA3D_BC5_UNORM:
1819	/* Unknown; only in DX10 & 11 */
1820	break;
1821	#endif
1822	default:
1823	AssertMsgFailed(("Unsupported format %d\n", format));
1824	break;
1825	}
1826	}
1827
1828
1829	#if 0
1830	/**
1831	* Convert SVGA multi sample count value to its D3D equivalent
1832	*/
1833	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1834	{
1835	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1836	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1837
1838	if (multisampleCount > 16)
1839	return D3DMULTISAMPLE_NONE;
1840
1841	/** @todo exact same mapping as d3d? */
1842	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1843	}
1844	#endif
1845
1846	/**
1847	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1848	*
1849	* @param pState The VMSVGA3d state.
1850	* @param pSurface The surface being destroyed.
1851	*/
1852	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1853	{
1854	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1855	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1856
1857	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1858	{
1859	case SVGA3D_SURFACE_CUBEMAP:
1860	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1861	break;
1862
1863	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1864	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1865	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1866	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1867	{
1868	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1869	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1870	}
1871	break;
1872
1873	case SVGA3D_SURFACE_HINT_TEXTURE:
1874	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1875	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1876	{
1877	glDeleteTextures(1, &pSurface->oglId.texture);
1878	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1879	}
1880	break;
1881
1882	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1883	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1884	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1885	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1886	{
1887	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1888	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1889	}
1890	break;
1891
1892	default:
1893	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1894	break;
1895	}
1896	}
1897
1898
1899	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1900	{
1901	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1902	uint32_t sidSrc = src.sid;
1903	uint32_t sidDest = dest.sid;
1904	int rc = VINF_SUCCESS;
1905
1906	AssertReturn(pState, VERR_NO_MEMORY);
1907	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1908	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1909	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1910	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1911
1912	for (uint32_t i = 0; i < cCopyBoxes; i++)
1913	{
1914	SVGA3dBox destBox, srcBox;
1915
1916	srcBox.x = pBox[i].srcx;
1917	srcBox.y = pBox[i].srcy;
1918	srcBox.z = pBox[i].srcz;
1919	srcBox.w = pBox[i].w;
1920	srcBox.h = pBox[i].h;
1921	srcBox.d = pBox[i].d;
1922
1923	destBox.x = pBox[i].x;
1924	destBox.y = pBox[i].y;
1925	destBox.z = pBox[i].z;
1926	destBox.w = pBox[i].w;
1927	destBox.h = pBox[i].h;
1928	destBox.d = pBox[i].d;
1929
1930	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1931	AssertRCReturn(rc, rc);
1932	}
1933	return VINF_SUCCESS;
1934	}
1935
1936
1937	/**
1938	* Save texture unpacking parameters and loads those appropriate for the given
1939	* surface.
1940	*
1941	* @param pState The VMSVGA3D state structure.
1942	* @param pContext The active context.
1943	* @param pSurface The surface.
1944	* @param pSave Where to save stuff.
1945	*/
1946	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1947	PVMSVGAPACKPARAMS pSave)
1948	{
1949	RT_NOREF(pState);
1950
1951	/*
1952	* Save (ignore errors, setting the defaults we want and avoids restore).
1953	*/
1954	pSave->iAlignment = 1;
1955	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1956	pSave->cxRow = 0;
1957	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1958
1959	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1960	pSave->cyImage = 0;
1961	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1962	Assert(pSave->cyImage == 0);
1963
1964	pSave->fSwapBytes = GL_FALSE;
1965	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1966	Assert(pSave->fSwapBytes == GL_FALSE);
1967
1968	pSave->fLsbFirst = GL_FALSE;
1969	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1970	Assert(pSave->fLsbFirst == GL_FALSE);
1971
1972	pSave->cSkipRows = 0;
1973	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1974	Assert(pSave->cSkipRows == 0);
1975
1976	pSave->cSkipPixels = 0;
1977	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1978	Assert(pSave->cSkipPixels == 0);
1979
1980	pSave->cSkipImages = 0;
1981	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1982	Assert(pSave->cSkipImages == 0);
1983
1984	VMSVGA3D_CLEAR_GL_ERRORS();
1985	#endif
1986
1987	/*
1988	* Setup unpack.
1989	*
1990	* Note! We use 1 as alignment here because we currently don't do any
1991	* aligning of line pitches anywhere.
1992	*/
1993	NOREF(pSurface);
1994	if (pSave->iAlignment != 1)
1995	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
1996	if (pSave->cxRow != 0)
1997	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
1998	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1999	if (pSave->cyImage != 0)
2000	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2001	if (pSave->fSwapBytes != 0)
2002	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2003	if (pSave->fLsbFirst != 0)
2004	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2005	if (pSave->cSkipRows != 0)
2006	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2007	if (pSave->cSkipPixels != 0)
2008	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2009	if (pSave->cSkipImages != 0)
2010	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2011	#endif
2012	}
2013
2014
2015	/**
2016	* Restores texture unpacking parameters.
2017	*
2018	* @param pState The VMSVGA3D state structure.
2019	* @param pContext The active context.
2020	* @param pSurface The surface.
2021	* @param pSave Where stuff was saved.
2022	*/
2023	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2024	PCVMSVGAPACKPARAMS pSave)
2025	{
2026	RT_NOREF(pState, pSurface);
2027
2028	if (pSave->iAlignment != 1)
2029	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2030	if (pSave->cxRow != 0)
2031	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2032	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2033	if (pSave->cyImage != 0)
2034	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2035	if (pSave->fSwapBytes != 0)
2036	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2037	if (pSave->fLsbFirst != 0)
2038	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2039	if (pSave->cSkipRows != 0)
2040	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2041	if (pSave->cSkipPixels != 0)
2042	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2043	if (pSave->cSkipImages != 0)
2044	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2045	#endif
2046	}
2047
2048
2049	/**
2050	* Create D3D/OpenGL texture object for the specified surface.
2051	*
2052	* Surfaces are created when needed.
2053	*
2054	* @param pState The VMSVGA3d state.
2055	* @param pContext The context.
2056	* @param idAssociatedContext Probably the same as pContext->id.
2057	* @param pSurface The surface to create the texture for.
2058	*/
2059	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2060	PVMSVGA3DSURFACE pSurface)
2061	{
2062	RT_NOREF(idAssociatedContext);
2063	GLint activeTexture = 0;
2064	uint32_t idPrevCtx = pState->idActiveContext;
2065	pContext = &pState->SharedCtx;
2066	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2067
2068	glGenTextures(1, &pSurface->oglId.texture);
2069	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2070	/** @todo Set the mip map generation filter settings. */
2071
2072	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2073	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2074
2075	/* Must bind texture to the current context in order to change it. */
2076	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2077	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2078
2079	/* Set the unpacking parameters. */
2080	VMSVGAPACKPARAMS SavedParams;
2081	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2082
2083	/* Set the mipmap base and max level paramters. */
2084	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2086	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2088
2089	if (pSurface->fDirty)
2090	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2091
2092	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2093	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2094	{
2095	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2096	exposing random host memory to the guest and helps a with the fedora 21 surface
2097	corruption issues (launchpad, background, search field, login). */
2098	if (pSurface->pMipmapLevels[i].fDirty)
2099	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2100
2101	glTexImage2D(GL_TEXTURE_2D,
2102	i,
2103	pSurface->internalFormatGL,
2104	pSurface->pMipmapLevels[i].mipmapSize.width,
2105	pSurface->pMipmapLevels[i].mipmapSize.height,
2106	0,
2107	pSurface->formatGL,
2108	pSurface->typeGL,
2109	pSurface->pMipmapLevels[i].pSurfaceData);
2110
2111	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2112
2113	pSurface->pMipmapLevels[i].fDirty = false;
2114	}
2115	pSurface->fDirty = false;
2116
2117	/* Restore unpacking parameters. */
2118	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2119
2120	/* Restore the old active texture. */
2121	glBindTexture(GL_TEXTURE_2D, activeTexture);
2122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2123
2124	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2125
2126	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2127	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2128	return VINF_SUCCESS;
2129	}
2130
2131
2132	/**
2133	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2134	*
2135	* @returns VBox status code.
2136	* @param pThis The VGA device instance.
2137	* @param pState The VMSVGA3d state.
2138	* @param pDstSurface The destination host surface.
2139	* @param uDstFace The destination face (valid).
2140	* @param uDstMipmap The destination mipmap level (valid).
2141	* @param pDstBox The destination box.
2142	* @param pSrcSurface The source host surface.
2143	* @param uSrcFace The destination face (valid).
2144	* @param uSrcMipmap The source mimap level (valid).
2145	* @param pSrcBox The source box.
2146	* @param enmMode The strecht blt mode .
2147	* @param pContext The VMSVGA3d context (already current for OGL).
2148	*/
2149	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2150	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2151	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2152	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2153	{
2154	RT_NOREF(pThis);
2155	RT_NOREF2(uDstFace, uSrcFace); /// @todo
2156
2157	/* Activate the read and draw framebuffer objects. */
2158	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2160	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2161	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2162
2163	/* Bind the source and destination objects to the right place. */
2164	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2165	pSrcSurface->oglId.texture, uSrcMipmap);
2166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2167	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2168	pDstSurface->oglId.texture, uDstMipmap);
2169	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2170
2171	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),
2172	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2173	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2174
2175	pState->ext.glBlitFramebuffer(pSrcBox->x,
2176	#ifdef MANUAL_FLIP_SURFACE_DATA
2177	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2178	#else
2179	pSrcBox->y,
2180	#endif
2181	pSrcBox->x + pSrcBox->w, /* exclusive. */
2182	#ifdef MANUAL_FLIP_SURFACE_DATA
2183	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2184	#else
2185	pSrcBox->y + pSrcBox->h,
2186	#endif
2187	pDstBox->x,
2188	#ifdef MANUAL_FLIP_SURFACE_DATA
2189	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2190	#else
2191	pDstBox->y,
2192	#endif
2193	pDstBox->x + pDstBox->w, /* exclusive. */
2194	#ifdef MANUAL_FLIP_SURFACE_DATA
2195	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2196	#else
2197	pDstBox->y + pDstBox->h,
2198	#endif
2199	GL_COLOR_BUFFER_BIT,
2200	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2201	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2202
2203	/* Reset the frame buffer association */
2204	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2205	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2206
2207	return VINF_SUCCESS;
2208	}
2209
2210	/**
2211	* Save texture packing parameters and loads those appropriate for the given
2212	* surface.
2213	*
2214	* @param pState The VMSVGA3D state structure.
2215	* @param pContext The active context.
2216	* @param pSurface The surface.
2217	* @param pSave Where to save stuff.
2218	*/
2219	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2220	PVMSVGAPACKPARAMS pSave)
2221	{
2222	RT_NOREF(pState);
2223	/*
2224	* Save (ignore errors, setting the defaults we want and avoids restore).
2225	*/
2226	pSave->iAlignment = 1;
2227	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2228	pSave->cxRow = 0;
2229	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2230
2231	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2232	pSave->cyImage = 0;
2233	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2234	Assert(pSave->cyImage == 0);
2235
2236	pSave->fSwapBytes = GL_FALSE;
2237	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2238	Assert(pSave->fSwapBytes == GL_FALSE);
2239
2240	pSave->fLsbFirst = GL_FALSE;
2241	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2242	Assert(pSave->fLsbFirst == GL_FALSE);
2243
2244	pSave->cSkipRows = 0;
2245	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2246	Assert(pSave->cSkipRows == 0);
2247
2248	pSave->cSkipPixels = 0;
2249	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2250	Assert(pSave->cSkipPixels == 0);
2251
2252	pSave->cSkipImages = 0;
2253	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2254	Assert(pSave->cSkipImages == 0);
2255
2256	VMSVGA3D_CLEAR_GL_ERRORS();
2257	#endif
2258
2259	/*
2260	* Setup unpack.
2261	*
2262	* Note! We use 1 as alignment here because we currently don't do any
2263	* aligning of line pitches anywhere.
2264	*/
2265	NOREF(pSurface);
2266	if (pSave->iAlignment != 1)
2267	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2268	if (pSave->cxRow != 0)
2269	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2270	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2271	if (pSave->cyImage != 0)
2272	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2273	if (pSave->fSwapBytes != 0)
2274	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2275	if (pSave->fLsbFirst != 0)
2276	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2277	if (pSave->cSkipRows != 0)
2278	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2279	if (pSave->cSkipPixels != 0)
2280	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2281	if (pSave->cSkipImages != 0)
2282	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2283	#endif
2284	}
2285
2286
2287	/**
2288	* Restores texture packing parameters.
2289	*
2290	* @param pState The VMSVGA3D state structure.
2291	* @param pContext The active context.
2292	* @param pSurface The surface.
2293	* @param pSave Where stuff was saved.
2294	*/
2295	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2296	PCVMSVGAPACKPARAMS pSave)
2297	{
2298	RT_NOREF(pState, pSurface);
2299	if (pSave->iAlignment != 1)
2300	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2301	if (pSave->cxRow != 0)
2302	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2303	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2304	if (pSave->cyImage != 0)
2305	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2306	if (pSave->fSwapBytes != 0)
2307	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2308	if (pSave->fLsbFirst != 0)
2309	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2310	if (pSave->cSkipRows != 0)
2311	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2312	if (pSave->cSkipPixels != 0)
2313	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2314	if (pSave->cSkipImages != 0)
2315	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2316	#endif
2317	}
2318
2319
2320	/**
2321	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2322	*
2323	* @returns Failure status code or @a rc.
2324	* @param pThis The VGA device instance data.
2325	* @param pState The VMSVGA3d state.
2326	* @param pSurface The host surface.
2327	* @param pMipLevel Mipmap level. The caller knows it already.
2328	* @param uHostFace The host face (valid).
2329	* @param uHostMipmap The host mipmap level (valid).
2330	* @param GuestPtr The guest pointer.
2331	* @param cbGuestPitch The guest pitch.
2332	* @param transfer The transfer direction.
2333	* @param pBox The box to copy.
2334	* @param pContext The context (for OpenGL).
2335	* @param rc The current rc for all boxes.
2336	* @param iBox The current box number (for Direct 3D).
2337	*/
2338	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2339	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2340	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2341	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2342	{
2343	RT_NOREF(iBox);
2344	RT_NOREF(uHostFace); /// @todo
2345
2346	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2347	{
2348	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2349	case SVGA3D_SURFACE_HINT_TEXTURE:
2350	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2351	{
2352	uint32_t cbSurfacePitch;
2353	uint8_t pDoubleBuffer, pBufferStart;
2354	unsigned uDestOffset = 0;
2355
2356	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2357	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2358
2359	if (transfer == SVGA3D_READ_HOST_VRAM)
2360	{
2361	GLint activeTexture;
2362
2363	/* Must bind texture to the current context in order to read it. */
2364	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2365	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2366
2367	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2368	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2369
2370	/* Set row length and alignment of the input data. */
2371	VMSVGAPACKPARAMS SavedParams;
2372	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2373
2374	glGetTexImage(GL_TEXTURE_2D,
2375	uHostMipmap,
2376	pSurface->formatGL,
2377	pSurface->typeGL,
2378	pDoubleBuffer);
2379	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2380
2381	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2382
2383	/* Restore the old active texture. */
2384	glBindTexture(GL_TEXTURE_2D, activeTexture);
2385	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2386
2387	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2388	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2389	<= pMipLevel->cbSurface,
2390	RTMemFree(pDoubleBuffer),
2391	VERR_INTERNAL_ERROR);
2392
2393	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2394
2395	#ifdef MANUAL_FLIP_SURFACE_DATA
2396	pBufferStart = pDoubleBuffer
2397	+ pBox->x * pSurface->cbBlock
2398	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2399	- cbSurfacePitch; /* flip image during copy */
2400	#else
2401	pBufferStart = pDoubleBuffer + uDestOffset;
2402	#endif
2403	}
2404	else
2405	{
2406	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2407	#ifdef MANUAL_FLIP_SURFACE_DATA
2408	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2409	#else
2410	pBufferStart = pDoubleBuffer;
2411	#endif
2412	}
2413
2414	rc = vmsvgaGMRTransfer(pThis,
2415	transfer,
2416	pBufferStart,
2417	#ifdef MANUAL_FLIP_SURFACE_DATA
2418	-(int32_t)cbSurfacePitch,
2419	#else
2420	(int32_t)cbSurfacePitch,
2421	#endif
2422	GuestPtr,
2423	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch, /// @todo compressed fmts
2424	cbGuestPitch,
2425	pBox->w * pSurface->cbBlock,
2426	pBox->h);
2427	AssertRC(rc);
2428
2429	/* Update the opengl surface data. */
2430	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2431	{
2432	GLint activeTexture = 0;
2433
2434	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2435	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2436
2437	/* Must bind texture to the current context in order to change it. */
2438	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2439	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2440
2441	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2442
2443	/* Set row length and alignment of the input data. */
2444	VMSVGAPACKPARAMS SavedParams;
2445	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2446
2447	glTexSubImage2D(GL_TEXTURE_2D,
2448	uHostMipmap,
2449	pBox->x,
2450	pBox->y,
2451	pBox->w,
2452	pBox->h,
2453	pSurface->formatGL,
2454	pSurface->typeGL,
2455	pDoubleBuffer);
2456
2457	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2458
2459	/* Restore old values. */
2460	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2461
2462	/* Restore the old active texture. */
2463	glBindTexture(GL_TEXTURE_2D, activeTexture);
2464	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2465	}
2466
2467	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2468
2469	/* Free the double buffer. */
2470	RTMemFree(pDoubleBuffer);
2471	break;
2472	}
2473
2474	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2475	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2476	break;
2477
2478	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2479	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2480	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2481	{
2482	Assert(pBox->h == 1);
2483
2484	VMSVGA3D_CLEAR_GL_ERRORS();
2485	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2486	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2487	{
2488	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2489	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2490	if (RT_LIKELY(pbData != NULL))
2491	{
2492	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2493	GLint cbStrictBufSize;
2494	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2495	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2496	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2497	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2498	#endif
2499
2500	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2501	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2502	<= pMipLevel->cbSurface))
2503	{
2504	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2505	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2506	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2507	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2508
2509	rc = vmsvgaGMRTransfer(pThis,
2510	transfer,
2511	pbData + offDst,
2512	pMipLevel->cbSurfacePitch,
2513	GuestPtr,
2514	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch,
2515	cbGuestPitch,
2516	pBox->w * pSurface->cbBlock,
2517	pBox->h);
2518	AssertRC(rc);
2519
2520	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offDst));
2521	}
2522	else
2523	{
2524	AssertFailed();
2525	rc = VERR_INTERNAL_ERROR;
2526	}
2527
2528	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2529	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2530	}
2531	else
2532	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2533	}
2534	else
2535	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2536	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2537	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2538	break;
2539	}
2540
2541	default:
2542	AssertFailed();
2543	break;
2544	}
2545
2546	return rc;
2547	}
2548
2549
2550	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2551	{
2552	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2553	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));
2554	for (uint32_t i = 0; i < cRects; i++)
2555	{
2556	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2557	}
2558
2559	/** @todo Only screen 0 for now. */
2560	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2561	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2562	/** @todo scaling */
2563	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2564
2565	if (cRects == 0)
2566	{
2567	/* easy case; no clipping */
2568	SVGA3dCopyBox box;
2569	SVGA3dGuestImage dst;
2570
2571	box.x = destRect.left;
2572	box.y = destRect.top;
2573	box.z = 0;
2574	box.w = destRect.right - destRect.left;
2575	box.h = destRect.bottom - destRect.top;
2576	box.d = 1;
2577	box.srcx = srcRect.left;
2578	box.srcy = srcRect.top;
2579	box.srcz = 0;
2580
2581	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2582	dst.ptr.offset = 0;
2583	dst.pitch = pThis->svga.cbScanline;
2584
2585	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2586	AssertRCReturn(rc, rc);
2587
2588	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2589	return VINF_SUCCESS;
2590	}
2591	else
2592	{
2593	SVGA3dGuestImage dst;
2594	SVGA3dCopyBox box;
2595
2596	box.srcz = 0;
2597	box.z = 0;
2598	box.d = 1;
2599
2600	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2601	dst.ptr.offset = 0;
2602	dst.pitch = pThis->svga.cbScanline;
2603
2604	/** @todo merge into one SurfaceDMA call */
2605	for (uint32_t i = 0; i < cRects; i++)
2606	{
2607	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2608	box.srcx = srcRect.left + pRect[i].left;
2609	box.srcy = srcRect.top + pRect[i].top;
2610
2611	box.x = pRect[i].left + destRect.left;
2612	box.y = pRect[i].top + destRect.top;
2613	box.z = 0;
2614	box.w = pRect[i].right - pRect[i].left;
2615	box.h = pRect[i].bottom - pRect[i].top;
2616
2617	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2618	AssertRCReturn(rc, rc);
2619
2620	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2621	}
2622
2623	return VINF_SUCCESS;
2624	}
2625	}
2626
2627	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2628	{
2629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2630	PVMSVGA3DSURFACE pSurface;
2631	int rc = VINF_SUCCESS;
2632	PVMSVGA3DCONTEXT pContext;
2633	uint32_t cid;
2634	GLint activeTexture = 0;
2635
2636	AssertReturn(pState, VERR_NO_MEMORY);
2637	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2638	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2639
2640	pSurface = pState->papSurfaces[sid];
2641
2642	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2643	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2644	pSurface->autogenFilter = filter;
2645
2646	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2647
2648	cid = SVGA3D_INVALID_ID;
2649	pContext = &pState->SharedCtx;
2650	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2651
2652	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2653	{
2654	/* Unknown surface type; turn it into a texture. */
2655	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2656	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2657	AssertRCReturn(rc, rc);
2658	}
2659	else
2660	{
2661	/** @todo new filter */
2662	AssertFailed();
2663	}
2664
2665	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2666	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2667
2668	/* Must bind texture to the current context in order to change it. */
2669	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2670	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2671
2672	/* Generate the mip maps. */
2673	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2674	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2675
2676	/* Restore the old texture. */
2677	glBindTexture(GL_TEXTURE_2D, activeTexture);
2678	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2679
2680	return VINF_SUCCESS;
2681	}
2682
2683	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2684	{
2685	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2686	PVMSVGA3DSURFACE pSurface;
2687	PVMSVGA3DCONTEXT pContext;
2688	uint32_t cid;
2689
2690	AssertReturn(pState, VERR_NO_MEMORY);
2691	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2692	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2693
2694	pSurface = pState->papSurfaces[sid];
2695
2696	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2697	for (uint32_t i=0; i < cRects; i++)
2698	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));
2699
2700	pContext = &pState->SharedCtx;
2701	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2702	cid = pContext->id;
2703	VMSVGA3D_CLEAR_GL_ERRORS();
2704
2705	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2706	/*
2707	* Source surface different size?
2708	*/
2709	RTRECT2 srcViewPort;
2710	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2711	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2712	{
2713	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2714	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2715
2716	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2717	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2718	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2719	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2720
2721	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2722	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2723	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2724	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2725	}
2726	else
2727	{
2728	srcViewPort.x = pThis->svga.viewport.x;
2729	srcViewPort.y = pThis->svga.viewport.y;
2730	srcViewPort.cx = pThis->svga.viewport.cx;
2731	srcViewPort.cy = pThis->svga.viewport.cy;
2732	}
2733	RTRECT SrcViewPortRect;
2734	SrcViewPortRect.xLeft = srcViewPort.x;
2735	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2736	SrcViewPortRect.yBottom = srcViewPort.y;
2737	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2738	#endif
2739
2740
2741	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2742	/*
2743	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2744	*/
2745	SVGA3dCopyRect rect;
2746	uint32_t oldVShader, oldPShader;
2747	GLint oldTextureId;
2748
2749	if (cRects == 0)
2750	{
2751	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2752	rect.w = pSurface->pMipmapLevels[0].size.width;
2753	rect.h = pSurface->pMipmapLevels[0].size.height;
2754	pRect = &rect;
2755	cRects = 1;
2756	}
2757
2758	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2759
2760	#if 0
2761	glDisable(GL_CULL_FACE);
2762	glDisable(GL_BLEND);
2763	glDisable(GL_ALPHA_TEST);
2764	glDisable(GL_SCISSOR_TEST);
2765	glDisable(GL_STENCIL_TEST);
2766	glEnable(GL_DEPTH_TEST);
2767	glDepthFunc(GL_ALWAYS);
2768	glDepthMask(GL_TRUE);
2769	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2770	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2771	#endif
2772
2773	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2774
2775	oldVShader = pContext->state.shidVertex;
2776	oldPShader = pContext->state.shidPixel;
2777	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2778	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2779
2780	/* Flush shader changes. */
2781	if (pContext->pShaderContext)
2782	ShaderUpdateState(pContext->pShaderContext, 0);
2783
2784	/* Activate the read and draw framebuffer objects. */
2785	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2786	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2787
2788	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2789	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2790	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2791
2792	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2793	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2794
2795	#if 0
2796	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2797	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2798	#endif
2799
2800	/* Reset the transformation matrices. */
2801	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2802	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2803	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2804	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2805	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2806	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2807	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2808	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2809
2810	for (uint32_t i = 0; i < cRects; i++)
2811	{
2812	float left, right, top, bottom; /* Texture coordinates */
2813	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2814
2815	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2816	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2817	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2818	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2819	pRect[i].w = pThis->svga.viewport.cx;
2820	pRect[i].h = pThis->svga.viewport.cy;
2821
2822	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2823	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2824	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2825	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2826	{
2827	/* Intersection is empty; skip */
2828	continue;
2829	}
2830
2831	left = pRect[i].srcx;
2832	right = pRect[i].srcx + pRect[i].w;
2833	top = pRect[i].srcy + pRect[i].h;
2834	bottom = pRect[i].srcy;
2835
2836	left /= pSurface->pMipmapLevels[0].size.width;
2837	right /= pSurface->pMipmapLevels[0].size.width;
2838	top /= pSurface->pMipmapLevels[0].size.height;
2839	bottom /= pSurface->pMipmapLevels[0].size.height;
2840
2841	vertexLeft = pRect[i].x;
2842	vertexRight = pRect[i].x + pRect[i].w;
2843	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2844	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2845
2846	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2847	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2848	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)));
2849
2850	glBegin(GL_QUADS);
2851
2852	/* bottom left */
2853	glTexCoord2f(left, bottom);
2854	glVertex2i(vertexLeft, vertexBottom);
2855
2856	/* top left */
2857	glTexCoord2f(left, top);
2858	glVertex2i(vertexLeft, vertexTop);
2859
2860	/* top right */
2861	glTexCoord2f(right, top);
2862	glVertex2i(vertexRight, vertexTop);
2863
2864	/* bottom right */
2865	glTexCoord2f(right, bottom);
2866	glVertex2i(vertexRight, vertexBottom);
2867
2868	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2869	}
2870
2871	/* Restore old settings. */
2872	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2873	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2874	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2875	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2876
2877	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2878
2879	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2880	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2881	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2882
2883	#else
2884	/*
2885	* glBlitFramebuffer variant.
2886	*/
2887	/* Activate the read and draw framebuffer objects. */
2888	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2889	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2890	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2891	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2892
2893	/* Bind the source objects to the right place. */
2894	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2895	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2896
2897
2898	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2899	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2900	ASMCompilerBarrier(); /* paranoia */
2901	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2902
2903	/* If there are no recangles specified, just grab a screenful. */
2904	SVGA3dCopyRect DummyRect;
2905	if (cRects != 0)
2906	{ /* likely */ }
2907	else
2908	{
2909	/** @todo Find the usecase for this or check what the original device does.
2910	* The original code was doing some scaling based on the surface
2911	* size... */
2912	# ifdef DEBUG_bird
2913	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2914	# endif
2915	DummyRect.x = DummyRect.srcx = 0;
2916	DummyRect.y = DummyRect.srcy = 0;
2917	DummyRect.w = pThis->svga.uWidth;
2918	DummyRect.h = pThis->svga.uHeight;
2919	cRects = 1;
2920	pRect = &DummyRect;
2921	}
2922
2923	/*
2924	* Blit the surface rectangle(s) to the back buffer.
2925	*/
2926	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
2927	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
2928	for (uint32_t i = 0; i < cRects; i++)
2929	{
2930	SVGA3dCopyRect ClippedRect = pRect[i];
2931
2932	/*
2933	* Do some sanity checking and limit width and height, all so we
2934	* don't need to think about wrap-arounds below.
2935	*/
2936	if (RT_LIKELY( ClippedRect.w
2937	&& ClippedRect.x < VMSVGA_MAX_X
2938	&& ClippedRect.srcx < VMSVGA_MAX_X
2939	&& ClippedRect.h
2940	&& ClippedRect.y < VMSVGA_MAX_Y
2941	&& ClippedRect.srcy < VMSVGA_MAX_Y
2942	))
2943	{ /* likely */ }
2944	else
2945	continue;
2946
2947	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
2948	{ /* likely */ }
2949	else
2950	ClippedRect.w = VMSVGA_MAX_X;
2951	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
2952	{ /* likely */ }
2953	else
2954	ClippedRect.h = VMSVGA_MAX_Y;
2955
2956
2957	/*
2958	* Source surface clipping (paranoia). Straight forward.
2959	*/
2960	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2961	{ /* likely */ }
2962	else
2963	continue;
2964	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2965	{ /* likely */ }
2966	else
2967	{
2968	AssertFailed(); /* remove if annoying. */
2969	ClippedRect.w = cxSurface - ClippedRect.srcx;
2970	}
2971
2972	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2973	{ /* likely */ }
2974	else
2975	continue;
2976	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2977	{ /* likely */ }
2978	else
2979	{
2980	AssertFailed(); /* remove if annoying. */
2981	ClippedRect.h = cySurface - ClippedRect.srcy;
2982	}
2983
2984	/*
2985	* Destination viewport clipping - real PITA.
2986	*
2987	* We have to take the following into account here:
2988	* - The source image is Y inverted.
2989	* - The destination framebuffer is in world and not window coordinates,
2990	* just like the source surface. This means working in the first quadrant.
2991	* - The viewport is in window coordinate, that is fourth quadrant and
2992	* negated Y values.
2993	* - The destination framebuffer is not scrolled, so we have to blit
2994	* what's visible into the top of the framebuffer.
2995	*
2996	*
2997	* To illustrate:
2998	*
2999	* source destination 0123456789
3000	* 8 ^---------- 8 ^---------- 0 ----------->
3001	* 7 \| \| 7 \| \| 1 \| \|
3002	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
3003	* 5 \| *** \| 5 \| * \| 3 \| * \|
3004	* 4 \| * \| => 4 \| * \| => 4 \| * \|
3005	* 3 \| * \| 3 \| * \| 5 \| * \|
3006	* 2 \| ******* \| 2 \| \| 6 \| \|
3007	* 1 \| \| 1 \| \| 7 \| \|
3008	* 0 -----------> 0 -----------> 8 v----------
3009	* 0123456789 0123456789 Destination window
3010	*
3011	* From the above, it follows that a destination viewport given in
3012	* window coordinates matches the source exactly when srcy = srcx = 0.
3013	*
3014	* Example (Y only):
3015	* ySrc = 0
3016	* yDst = 0
3017	* cyCopy = 9
3018	* cyScreen = cyCopy
3019	* cySurface >= cyCopy
3020	* yViewport = 5
3021	* cyViewport = 2 (i.e. '\| *** \|'
3022	* '\| \|' )
3023	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3024	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3025	*
3026	* We can see from the illustration that the final result should be:
3027	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3028	* DstRect = (0,2) (11, 4)
3029	*
3030	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3031	* easier to follow:
3032	* SrcRect = (0,5) (11, 7)
3033	*
3034	* From the top, Y values only:
3035	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3036	*
3037	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3038	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3039	* Copy.yDst += cyAdjust = 2;
3040	* Copy.ySrc = unchanged;
3041	* Copy.cx -= cyAdjust = 7;
3042	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3043	*
3044	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3045	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3046	* Copy.yDst = unchanged;
3047	* Copy.ySrc += cyAdjust = 5;
3048	* Copy.cx -= cyAdjust = 2;
3049	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3050	*
3051	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3052	* when the view is resized, moved and otherwise messed with,
3053	* the visible part of the framebuffer is actually the bottom
3054	* one. It's easy to adjust for this, just have to adjust the
3055	* destination rectangle such that yBottom is zero.
3056	*/
3057	/* X - no inversion, so kind of simple. */
3058	if (ClippedRect.x >= DstViewport.x)
3059	{
3060	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3061	{ /* typical */ }
3062	else if (ClippedRect.x < DstViewport.xRight)
3063	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3064	else
3065	continue;
3066	}
3067	else
3068	{
3069	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3070	if (cxAdjust < ClippedRect.w)
3071	{
3072	ClippedRect.w -= cxAdjust;
3073	ClippedRect.x += cxAdjust;
3074	ClippedRect.srcx += cxAdjust;
3075	}
3076	else
3077	continue;
3078
3079	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3080	{ /* typical */ }
3081	else
3082	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3083	}
3084
3085	/* Y - complicated, see above. */
3086	if (ClippedRect.y >= DstViewport.yLowWC)
3087	{
3088	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3089	{ /* typical */ }
3090	else if (ClippedRect.y < DstViewport.yHighWC)
3091	{
3092	/* adjustment #2 */
3093	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3094	ClippedRect.srcy += cyAdjust;
3095	ClippedRect.h -= cyAdjust;
3096	}
3097	else
3098	continue;
3099	}
3100	else
3101	{
3102	/* adjustment #1 */
3103	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3104	if (cyAdjust < ClippedRect.h)
3105	{
3106	ClippedRect.y += cyAdjust;
3107	ClippedRect.h -= cyAdjust;
3108	}
3109	else
3110	continue;
3111
3112	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3113	{ /* typical */ }
3114	else
3115	{
3116	/* adjustment #2 */
3117	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3118	ClippedRect.srcy += cyAdjust;
3119	ClippedRect.h -= cyAdjust;
3120	}
3121	}
3122
3123	/* Calc source rectangle with y flipping wrt destination. */
3124	RTRECT SrcRect;
3125	SrcRect.xLeft = ClippedRect.srcx;
3126	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3127	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3128	SrcRect.yTop = ClippedRect.srcy;
3129
3130	/* Calc destination rectangle. */
3131	RTRECT DstRect;
3132	DstRect.xLeft = ClippedRect.x;
3133	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3134	DstRect.yBottom = ClippedRect.y;
3135	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3136
3137	/* Adjust for viewport. */
3138	DstRect.xLeft -= DstViewport.x;
3139	DstRect.xRight -= DstViewport.x;
3140	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3141	DstRect.yTop -= DstRect.yBottom;
3142	DstRect.yBottom = 0;
3143	# else
3144	DstRect.yBottom += DstViewport.y;
3145	DstRect.yTop += DstViewport.y;
3146	# endif
3147
3148	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3149	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3150	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3151	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3152	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3153	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3154	}
3155
3156	#endif
3157
3158	/*
3159	* Flip the front and back buffers.
3160	*/
3161	#ifdef RT_OS_WINDOWS
3162	BOOL fRef = SwapBuffers(pContext->hdc);
3163	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3164	#elif defined(RT_OS_DARWIN)
3165	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3166	#else
3167	/* show the window if not already done */
3168	if (!pContext->fMapped)
3169	{
3170	XMapWindow(pState->display, pContext->window);
3171	pContext->fMapped = true;
3172	}
3173	/* now swap the buffers, i.e. display the rendering result */
3174	glXSwapBuffers(pState->display, pContext->window);
3175	#endif
3176
3177	/*
3178	* Now we can reset the frame buffer association. Doing it earlier means no
3179	* output on darwin.
3180	*/
3181	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3182	return VINF_SUCCESS;
3183	}
3184
3185	#ifdef RT_OS_LINUX
3186	/**
3187	* X11 event handling thread.
3188	*
3189	* @returns VINF_SUCCESS (ignored)
3190	* @param hThreadSelf thread handle
3191	* @param pvUser pointer to pState structure
3192	*/
3193	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3194	{
3195	RT_NOREF(hThreadSelf);
3196	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3197	while (!pState->bTerminate)
3198	{
3199	while (XPending(pState->display) > 0)
3200	{
3201	XEvent event;
3202	XNextEvent(pState->display, &event);
3203
3204	switch (event.type)
3205	{
3206	default:
3207	break;
3208	}
3209	}
3210	/* sleep for 16ms to not burn too many cycles */
3211	RTThreadSleep(16);
3212	}
3213	return VINF_SUCCESS;
3214	}
3215	#endif // RT_OS_LINUX
3216
3217
3218	/**
3219	* Create a new 3d context
3220	*
3221	* @returns VBox status code.
3222	* @param pThis VGA device instance data.
3223	* @param cid Context id
3224	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3225	*/
3226	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3227	{
3228	int rc;
3229	PVMSVGA3DCONTEXT pContext;
3230	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3231
3232	AssertReturn(pState, VERR_NO_MEMORY);
3233	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3234	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3235	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3236	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3237	#endif
3238
3239	Log(("vmsvga3dContextDefine id %x\n", cid));
3240	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3241	if (pState->idTestContext == SVGA_ID_INVALID)
3242	{
3243	pState->idTestContext = 207;
3244	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3245	AssertRCReturn(rc, rc);
3246	}
3247	#endif
3248
3249	if (cid == VMSVGA3D_SHARED_CTX_ID)
3250	pContext = &pState->SharedCtx;
3251	else
3252	{
3253	if (cid >= pState->cContexts)
3254	{
3255	/* Grow the array. */
3256	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3257	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3258	AssertReturn(pvNew, VERR_NO_MEMORY);
3259	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3260	while (pState->cContexts < cNew)
3261	{
3262	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3263	AssertReturn(pContext, VERR_NO_MEMORY);
3264	pContext->id = SVGA3D_INVALID_ID;
3265	pState->papContexts[pState->cContexts++] = pContext;
3266	}
3267	}
3268	/* If one already exists with this id, then destroy it now. */
3269	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3270	vmsvga3dContextDestroy(pThis, cid);
3271
3272	pContext = pState->papContexts[cid];
3273	}
3274
3275	/*
3276	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3277	*/
3278	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3279	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3280	{
3281	pSharedCtx = &pState->SharedCtx;
3282	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3283	{
3284	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3285	AssertLogRelRCReturn(rc, rc);
3286	}
3287	}
3288
3289	/*
3290	* Initialize the context.
3291	*/
3292	memset(pContext, 0, sizeof(*pContext));
3293	pContext->id = cid;
3294	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3295	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3296
3297	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3298	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3299	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3300	pContext->idFramebuffer = OPENGL_INVALID_ID;
3301	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3302	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3303
3304	rc = ShaderContextCreate(&pContext->pShaderContext);
3305	AssertRCReturn(rc, rc);
3306
3307	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3308	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3309
3310	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3311
3312	#ifdef RT_OS_WINDOWS
3313	/* Create a context window. */
3314	CREATESTRUCT cs;
3315	cs.lpCreateParams = NULL;
3316	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3317	# ifdef DEBUG_GFX_WINDOW
3318	cs.lpszName = (char *)RTMemAllocZ(256);
3319	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3320	# else
3321	cs.lpszName = NULL;
3322	# endif
3323	cs.lpszClass = 0;
3324	# ifdef DEBUG_GFX_WINDOW
3325	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3326	# else
3327	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3328	# endif
3329	cs.x = 0;
3330	cs.y = 0;
3331	cs.cx = pThis->svga.uWidth;
3332	cs.cy = pThis->svga.uHeight;
3333	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3334	cs.hMenu = NULL;
3335	cs.hInstance = pState->hInstance;
3336
3337	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3338	AssertRCReturn(rc, rc);
3339
3340	pContext->hdc = GetDC(pContext->hwnd);
3341	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3342
3343	PIXELFORMATDESCRIPTOR pfd = {
3344	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3345	1, /* version number */
3346	PFD_DRAW_TO_WINDOW \| /* support window */
3347	PFD_DOUBLEBUFFER \| /* support double buffering */
3348	PFD_SUPPORT_OPENGL, /* support OpenGL */
3349	PFD_TYPE_RGBA, /* RGBA type */
3350	24, /* 24-bit color depth */
3351	0, 0, 0, 0, 0, 0, /* color bits ignored */
3352	8, /* alpha buffer */
3353	0, /* shift bit ignored */
3354	0, /* no accumulation buffer */
3355	0, 0, 0, 0, /* accum bits ignored */
3356	16, /* set depth buffer */
3357	16, /* set stencil buffer */
3358	0, /* no auxiliary buffer */
3359	PFD_MAIN_PLANE, /* main layer */
3360	0, /* reserved */
3361	0, 0, 0 /* layer masks ignored */
3362	};
3363	int pixelFormat;
3364	BOOL ret;
3365
3366	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3367	/** @todo is this really necessary?? */
3368	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3369	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3370
3371	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3372	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3373
3374	pContext->hglrc = wglCreateContext(pContext->hdc);
3375	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3376
3377	if (pSharedCtx)
3378	{
3379	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3380	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3381	}
3382
3383	#elif defined(RT_OS_DARWIN)
3384	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3385
3386	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3387	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3388	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3389	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3390	pThis->svga.uWidth, pThis->svga.uHeight,
3391	pShareContext, pContext->fOtherProfile);
3392
3393	#else
3394	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3395
3396	if (pState->display == NULL)
3397	{
3398	/* get an X display and make sure we have glX 1.3 */
3399	pState->display = XOpenDisplay(0);
3400	Assert(pState->display);
3401	int glxMajor, glxMinor;
3402	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3403	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3404	/* start our X event handling thread */
3405	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3406	if (RT_FAILURE(rc))
3407	{
3408	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3409	return rc;
3410	}
3411	}
3412	int attrib[] =
3413	{
3414	GLX_RGBA,
3415	GLX_RED_SIZE, 1,
3416	GLX_GREEN_SIZE, 1,
3417	GLX_BLUE_SIZE, 1,
3418	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3419	GLX_DOUBLEBUFFER,
3420	None
3421	};
3422	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3423	XSetWindowAttributes swa;
3424	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3425	swa.border_pixel = 0;
3426	swa.background_pixel = 0;
3427	swa.event_mask = StructureNotifyMask \| ExposureMask;
3428	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3429	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3430	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3431	0, vi->depth, InputOutput,
3432	vi->visual, flags, &swa);
3433	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3434	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3435
3436	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3437
3438	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3439	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3440	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3441	#endif
3442
3443	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3444
3445	/* NULL during the first PowerOn call. */
3446	if (pState->ext.glGenFramebuffers)
3447	{
3448	/* Create a framebuffer object for this context. */
3449	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3450	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3451
3452	/* Bind the object to the framebuffer target. */
3453	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3454	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3455
3456	/* Create read and draw framebuffer objects for this context. */
3457	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3458	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3459
3460	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3461	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3462
3463	}
3464	#if 0
3465	/** @todo move to shader lib!!! */
3466	/* Clear the screen */
3467	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3468
3469	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3470	glClearIndex(0);
3471	glClearDepth(1);
3472	glClearStencil(0xffff);
3473	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3474	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3475	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3476	if (pState->ext.glProvokingVertex)
3477	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3478	/** @todo move to shader lib!!! */
3479	#endif
3480	return VINF_SUCCESS;
3481	}
3482
3483
3484	/**
3485	* Create a new 3d context
3486	*
3487	* @returns VBox status code.
3488	* @param pThis VGA device instance data.
3489	* @param cid Context id
3490	*/
3491	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3492	{
3493	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3494	}
3495
3496	/**
3497	* Destroys a 3d context.
3498	*
3499	* @returns VBox status code.
3500	* @param pThis VGA device instance data.
3501	* @param pContext The context to destroy.
3502	* @param cid Context id
3503	*/
3504	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3505	{
3506	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3507	AssertReturn(pState, VERR_NO_MEMORY);
3508	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3509	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3510	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3511
3512	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3513
3514	/* Destroy all leftover pixel shaders. */
3515	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3516	{
3517	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3518	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3519	}
3520	if (pContext->paPixelShader)
3521	RTMemFree(pContext->paPixelShader);
3522
3523	/* Destroy all leftover vertex shaders. */
3524	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3525	{
3526	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3527	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3528	}
3529	if (pContext->paVertexShader)
3530	RTMemFree(pContext->paVertexShader);
3531
3532	if (pContext->state.paVertexShaderConst)
3533	RTMemFree(pContext->state.paVertexShaderConst);
3534	if (pContext->state.paPixelShaderConst)
3535	RTMemFree(pContext->state.paPixelShaderConst);
3536
3537	if (pContext->pShaderContext)
3538	{
3539	int rc = ShaderContextDestroy(pContext->pShaderContext);
3540	AssertRC(rc);
3541	}
3542
3543	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3544	{
3545	/* Unbind the object from the framebuffer target. */
3546	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3547	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3548	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3549	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3550
3551	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3552	{
3553	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3554	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3555	}
3556	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3557	{
3558	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3559	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3560	}
3561	}
3562	#ifdef RT_OS_WINDOWS
3563	wglMakeCurrent(pContext->hdc, NULL);
3564	wglDeleteContext(pContext->hglrc);
3565	ReleaseDC(pContext->hwnd, pContext->hdc);
3566
3567	/* Destroy the window we've created. */
3568	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3569	AssertRC(rc);
3570	#elif defined(RT_OS_DARWIN)
3571	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3572	#elif defined(RT_OS_LINUX)
3573	glXMakeCurrent(pState->display, None, NULL);
3574	glXDestroyContext(pState->display, pContext->glxContext);
3575	XDestroyWindow(pState->display, pContext->window);
3576	#endif
3577
3578	memset(pContext, 0, sizeof(*pContext));
3579	pContext->id = SVGA3D_INVALID_ID;
3580
3581	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3582	return VINF_SUCCESS;
3583	}
3584
3585	/**
3586	* Destroy an existing 3d context
3587	*
3588	* @returns VBox status code.
3589	* @param pThis VGA device instance data.
3590	* @param cid Context id
3591	*/
3592	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3593	{
3594	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3595	AssertReturn(pState, VERR_WRONG_ORDER);
3596
3597	/*
3598	* Resolve the context and hand it to the common worker function.
3599	*/
3600	if ( cid < pState->cContexts
3601	&& pState->papContexts[cid]->id == cid)
3602	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3603
3604	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3605	return VINF_SUCCESS;
3606	}
3607
3608	/**
3609	* Worker for vmsvga3dChangeMode that resizes a context.
3610	*
3611	* @param pThis The VGA device instance data.
3612	* @param pState The VMSVGA3d state.
3613	* @param pContext The context.
3614	*/
3615	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3616	{
3617	#ifdef RT_OS_WINDOWS
3618	/* Resize the window. */
3619	CREATESTRUCT cs;
3620	RT_ZERO(cs);
3621	cs.cx = pThis->svga.uWidth;
3622	cs.cy = pThis->svga.uHeight;
3623	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3624	AssertRC(rc);
3625
3626	#elif defined(RT_OS_DARWIN)
3627	RT_NOREF(pState);
3628	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3629
3630	#elif defined(RT_OS_LINUX)
3631	XWindowChanges wc;
3632	wc.width = pThis->svga.uWidth;
3633	wc.height = pThis->svga.uHeight;
3634	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3635	#endif
3636	}
3637
3638	/* Handle resize */
3639	int vmsvga3dChangeMode(PVGASTATE pThis)
3640	{
3641	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3642	AssertReturn(pState, VERR_NO_MEMORY);
3643
3644	/* Resize the shared context too. */
3645	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3646	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3647
3648	/* Resize all active contexts. */
3649	for (uint32_t i = 0; i < pState->cContexts; i++)
3650	{
3651	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3652	if (pContext->id != SVGA3D_INVALID_ID)
3653	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3654	}
3655
3656	return VINF_SUCCESS;
3657	}
3658
3659
3660	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3661	{
3662	PVMSVGA3DCONTEXT pContext;
3663	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3664	AssertReturn(pState, VERR_NO_MEMORY);
3665	bool fModelViewChanged = false;
3666
3667	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3668
3669	if ( cid >= pState->cContexts
3670	\|\| pState->papContexts[cid]->id != cid)
3671	{
3672	Log(("vmsvga3dSetTransform invalid context id!\n"));
3673	return VERR_INVALID_PARAMETER;
3674	}
3675	pContext = pState->papContexts[cid];
3676	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3677
3678	/* Save this matrix for vm state save/restore. */
3679	pContext->state.aTransformState[type].fValid = true;
3680	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3681	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3682
3683	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)));
3684	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)));
3685	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)));
3686	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)));
3687
3688	switch (type)
3689	{
3690	case SVGA3D_TRANSFORM_VIEW:
3691	/* View * World = Model View */
3692	glMatrixMode(GL_MODELVIEW);
3693	glLoadMatrixf(matrix);
3694	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3695	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3696	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3697	fModelViewChanged = true;
3698	break;
3699
3700	case SVGA3D_TRANSFORM_PROJECTION:
3701	{
3702	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3703	AssertRCReturn(rc, rc);
3704	break;
3705	}
3706
3707	case SVGA3D_TRANSFORM_TEXTURE0:
3708	glMatrixMode(GL_TEXTURE);
3709	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3710	glLoadMatrixf(matrix);
3711	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3712	break;
3713
3714	case SVGA3D_TRANSFORM_TEXTURE1:
3715	case SVGA3D_TRANSFORM_TEXTURE2:
3716	case SVGA3D_TRANSFORM_TEXTURE3:
3717	case SVGA3D_TRANSFORM_TEXTURE4:
3718	case SVGA3D_TRANSFORM_TEXTURE5:
3719	case SVGA3D_TRANSFORM_TEXTURE6:
3720	case SVGA3D_TRANSFORM_TEXTURE7:
3721	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3722	return VERR_INVALID_PARAMETER;
3723
3724	case SVGA3D_TRANSFORM_WORLD:
3725	/* View * World = Model View */
3726	glMatrixMode(GL_MODELVIEW);
3727	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3728	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3729	else
3730	glLoadIdentity();
3731	glMultMatrixf(matrix);
3732	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3733	fModelViewChanged = true;
3734	break;
3735
3736	case SVGA3D_TRANSFORM_WORLD1:
3737	case SVGA3D_TRANSFORM_WORLD2:
3738	case SVGA3D_TRANSFORM_WORLD3:
3739	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3740	return VERR_INVALID_PARAMETER;
3741
3742	default:
3743	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3744	return VERR_INVALID_PARAMETER;
3745	}
3746
3747	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3748	if (fModelViewChanged)
3749	{
3750	/* Reprogram the clip planes. */
3751	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3752	{
3753	if (pContext->state.aClipPlane[j].fValid == true)
3754	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3755	}
3756
3757	/* Reprogram the light data. */
3758	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3759	{
3760	if (pContext->state.aLightData[j].fValidData == true)
3761	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3762	}
3763	}
3764
3765	return VINF_SUCCESS;
3766	}
3767
3768	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3769	{
3770	PVMSVGA3DCONTEXT pContext;
3771	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3772	AssertReturn(pState, VERR_NO_MEMORY);
3773
3774	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3775
3776	if ( cid >= pState->cContexts
3777	\|\| pState->papContexts[cid]->id != cid)
3778	{
3779	Log(("vmsvga3dSetZRange invalid context id!\n"));
3780	return VERR_INVALID_PARAMETER;
3781	}
3782	pContext = pState->papContexts[cid];
3783	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3784
3785	pContext->state.zRange = zRange;
3786	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3787
3788	if (zRange.min < -1.0)
3789	zRange.min = -1.0;
3790	if (zRange.max > 1.0)
3791	zRange.max = 1.0;
3792
3793	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3794	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3795	return VINF_SUCCESS;
3796	}
3797
3798	/**
3799	* Convert SVGA blend op value to its OpenGL equivalent
3800	*/
3801	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3802	{
3803	switch (blendOp)
3804	{
3805	case SVGA3D_BLENDOP_ZERO:
3806	return GL_ZERO;
3807	case SVGA3D_BLENDOP_ONE:
3808	return GL_ONE;
3809	case SVGA3D_BLENDOP_SRCCOLOR:
3810	return GL_SRC_COLOR;
3811	case SVGA3D_BLENDOP_INVSRCCOLOR:
3812	return GL_ONE_MINUS_SRC_COLOR;
3813	case SVGA3D_BLENDOP_SRCALPHA:
3814	return GL_SRC_ALPHA;
3815	case SVGA3D_BLENDOP_INVSRCALPHA:
3816	return GL_ONE_MINUS_SRC_ALPHA;
3817	case SVGA3D_BLENDOP_DESTALPHA:
3818	return GL_DST_ALPHA;
3819	case SVGA3D_BLENDOP_INVDESTALPHA:
3820	return GL_ONE_MINUS_DST_ALPHA;
3821	case SVGA3D_BLENDOP_DESTCOLOR:
3822	return GL_DST_COLOR;
3823	case SVGA3D_BLENDOP_INVDESTCOLOR:
3824	return GL_ONE_MINUS_DST_COLOR;
3825	case SVGA3D_BLENDOP_SRCALPHASAT:
3826	return GL_SRC_ALPHA_SATURATE;
3827	case SVGA3D_BLENDOP_BLENDFACTOR:
3828	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3829	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3830	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3831	default:
3832	AssertFailed();
3833	return GL_ONE;
3834	}
3835	}
3836
3837	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3838	{
3839	switch (blendEq)
3840	{
3841	case SVGA3D_BLENDEQ_ADD:
3842	return GL_FUNC_ADD;
3843	case SVGA3D_BLENDEQ_SUBTRACT:
3844	return GL_FUNC_SUBTRACT;
3845	case SVGA3D_BLENDEQ_REVSUBTRACT:
3846	return GL_FUNC_REVERSE_SUBTRACT;
3847	case SVGA3D_BLENDEQ_MINIMUM:
3848	return GL_MIN;
3849	case SVGA3D_BLENDEQ_MAXIMUM:
3850	return GL_MAX;
3851	default:
3852	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3853	return GL_FUNC_ADD;
3854	}
3855	}
3856
3857	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3858	{
3859	switch (cmpFunc)
3860	{
3861	case SVGA3D_CMP_NEVER:
3862	return GL_NEVER;
3863	case SVGA3D_CMP_LESS:
3864	return GL_LESS;
3865	case SVGA3D_CMP_EQUAL:
3866	return GL_EQUAL;
3867	case SVGA3D_CMP_LESSEQUAL:
3868	return GL_LEQUAL;
3869	case SVGA3D_CMP_GREATER:
3870	return GL_GREATER;
3871	case SVGA3D_CMP_NOTEQUAL:
3872	return GL_NOTEQUAL;
3873	case SVGA3D_CMP_GREATEREQUAL:
3874	return GL_GEQUAL;
3875	case SVGA3D_CMP_ALWAYS:
3876	return GL_ALWAYS;
3877	default:
3878	AssertFailed();
3879	return GL_LESS;
3880	}
3881	}
3882
3883	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3884	{
3885	switch (stencilOp)
3886	{
3887	case SVGA3D_STENCILOP_KEEP:
3888	return GL_KEEP;
3889	case SVGA3D_STENCILOP_ZERO:
3890	return GL_ZERO;
3891	case SVGA3D_STENCILOP_REPLACE:
3892	return GL_REPLACE;
3893	case SVGA3D_STENCILOP_INCRSAT:
3894	return GL_INCR_WRAP;
3895	case SVGA3D_STENCILOP_DECRSAT:
3896	return GL_DECR_WRAP;
3897	case SVGA3D_STENCILOP_INVERT:
3898	return GL_INVERT;
3899	case SVGA3D_STENCILOP_INCR:
3900	return GL_INCR;
3901	case SVGA3D_STENCILOP_DECR:
3902	return GL_DECR;
3903	default:
3904	AssertFailed();
3905	return GL_KEEP;
3906	}
3907	}
3908
3909	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3910	{
3911	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3912	PVMSVGA3DCONTEXT pContext;
3913	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3914	AssertReturn(pState, VERR_NO_MEMORY);
3915
3916	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3917
3918	if ( cid >= pState->cContexts
3919	\|\| pState->papContexts[cid]->id != cid)
3920	{
3921	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3922	return VERR_INVALID_PARAMETER;
3923	}
3924	pContext = pState->papContexts[cid];
3925	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3926
3927	for (unsigned i = 0; i < cRenderStates; i++)
3928	{
3929	GLenum enableCap = ~(GLenum)0;
3930	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3931	/* Save the render state for vm state saving. */
3932	if (pRenderState[i].state < SVGA3D_RS_MAX)
3933	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3934
3935	switch (pRenderState[i].state)
3936	{
3937	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3938	enableCap = GL_DEPTH_TEST;
3939	val = pRenderState[i].uintValue;
3940	break;
3941
3942	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3943	glDepthMask(!!pRenderState[i].uintValue);
3944	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3945	break;
3946
3947	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3948	enableCap = GL_ALPHA_TEST;
3949	val = pRenderState[i].uintValue;
3950	break;
3951
3952	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3953	enableCap = GL_DITHER;
3954	val = pRenderState[i].uintValue;
3955	break;
3956
3957	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3958	enableCap = GL_FOG;
3959	val = pRenderState[i].uintValue;
3960	break;
3961
3962	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3963	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3964	break;
3965
3966	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3967	enableCap = GL_LIGHTING;
3968	val = pRenderState[i].uintValue;
3969	break;
3970
3971	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3972	/* not applicable */
3973	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3974	break;
3975
3976	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3977	enableCap = GL_POINT_SPRITE_ARB;
3978	val = pRenderState[i].uintValue;
3979	break;
3980
3981	case SVGA3D_RS_POINTSIZE: /* float */
3982	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3983	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3984	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3985	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3986	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3987
3988	glPointSize(pRenderState[i].floatValue);
3989	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3990	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3991	break;
3992
3993	case SVGA3D_RS_POINTSIZEMIN: /* float */
3994	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3996	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3997	break;
3998
3999	case SVGA3D_RS_POINTSIZEMAX: /* float */
4000	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4001	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4002	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4003	break;
4004
4005	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4006	case SVGA3D_RS_POINTSCALE_A: /* float */
4007	case SVGA3D_RS_POINTSCALE_B: /* float */
4008	case SVGA3D_RS_POINTSCALE_C: /* float */
4009	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4010	break;
4011
4012	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4013	{
4014	GLfloat color[4]; /* red, green, blue, alpha */
4015
4016	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4017
4018	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4019	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4020	break;
4021	}
4022
4023	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4024	{
4025	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4026	for (uint32_t j = 0; j <= 5; j++)
4027	{
4028	if (pRenderState[i].uintValue & RT_BIT(j))
4029	glEnable(GL_CLIP_PLANE0 + j);
4030	else
4031	glDisable(GL_CLIP_PLANE0 + j);
4032	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4033	}
4034	break;
4035	}
4036
4037	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4038	{
4039	GLfloat color[4]; /* red, green, blue, alpha */
4040
4041	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4042
4043	glFogfv(GL_FOG_COLOR, color);
4044	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4045	break;
4046	}
4047
4048	case SVGA3D_RS_FOGSTART: /* float */
4049	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4051	break;
4052
4053	case SVGA3D_RS_FOGEND: /* float */
4054	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4055	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4056	break;
4057
4058	case SVGA3D_RS_FOGDENSITY: /* float */
4059	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4060	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4061	break;
4062
4063	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4064	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4065	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4066	break;
4067
4068	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4069	{
4070	SVGA3dFogMode mode;
4071	mode.uintValue = pRenderState[i].uintValue;
4072
4073	enableCap = GL_FOG_MODE;
4074	switch (mode.s.function)
4075	{
4076	case SVGA3D_FOGFUNC_EXP:
4077	val = GL_EXP;
4078	break;
4079	case SVGA3D_FOGFUNC_EXP2:
4080	val = GL_EXP2;
4081	break;
4082	case SVGA3D_FOGFUNC_LINEAR:
4083	val = GL_LINEAR;
4084	break;
4085	default:
4086	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4087	break;
4088	}
4089
4090	/** @todo how to switch between vertex and pixel fog modes??? */
4091	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4092	#if 0
4093	/* The fog type determines the render state. */
4094	switch (mode.s.type)
4095	{
4096	case SVGA3D_FOGTYPE_VERTEX:
4097	renderState = D3DRS_FOGVERTEXMODE;
4098	break;
4099	case SVGA3D_FOGTYPE_PIXEL:
4100	renderState = D3DRS_FOGTABLEMODE;
4101	break;
4102	default:
4103	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4104	break;
4105	}
4106	#endif
4107
4108	/* Set the fog base to depth or range. */
4109	switch (mode.s.base)
4110	{
4111	case SVGA3D_FOGBASE_DEPTHBASED:
4112	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4114	break;
4115	case SVGA3D_FOGBASE_RANGEBASED:
4116	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4117	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4118	break;
4119	default:
4120	/* ignore */
4121	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4122	break;
4123	}
4124	break;
4125	}
4126
4127	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4128	{
4129	SVGA3dFillMode mode;
4130
4131	mode.uintValue = pRenderState[i].uintValue;
4132
4133	switch (mode.s.mode)
4134	{
4135	case SVGA3D_FILLMODE_POINT:
4136	val = GL_POINT;
4137	break;
4138	case SVGA3D_FILLMODE_LINE:
4139	val = GL_LINE;
4140	break;
4141	case SVGA3D_FILLMODE_FILL:
4142	val = GL_FILL;
4143	break;
4144	default:
4145	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4146	break;
4147	}
4148	/* @note only front and back faces */
4149	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4150	glPolygonMode(GL_FRONT_AND_BACK, val);
4151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4152	break;
4153	}
4154
4155	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4156	switch (pRenderState[i].uintValue)
4157	{
4158	case SVGA3D_SHADEMODE_FLAT:
4159	val = GL_FLAT;
4160	break;
4161
4162	case SVGA3D_SHADEMODE_SMOOTH:
4163	val = GL_SMOOTH;
4164	break;
4165
4166	default:
4167	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4168	break;
4169	}
4170
4171	glShadeModel(val);
4172	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4173	break;
4174
4175	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4176	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4177	/** @todo */
4178	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4179	/*
4180	renderState = D3DRS_LINEPATTERN;
4181	val = pRenderState[i].uintValue;
4182	*/
4183	break;
4184
4185	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4186	enableCap = GL_LINE_SMOOTH;
4187	val = pRenderState[i].uintValue;
4188	break;
4189
4190	case SVGA3D_RS_LINEWIDTH: /* float */
4191	glLineWidth(pRenderState[i].floatValue);
4192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4193	break;
4194
4195	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4196	{
4197	/* Refresh the blending state based on the new enable setting. */
4198	SVGA3dRenderState renderstate[2];
4199
4200	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4201	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4202	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4203	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4204
4205	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4206	AssertRCReturn(rc, rc);
4207
4208	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4209	continue; /* ignore if blend is already enabled */
4210	} RT_FALL_THRU();
4211
4212	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4213	enableCap = GL_BLEND;
4214	val = pRenderState[i].uintValue;
4215	break;
4216
4217	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4218	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4219	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4220	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4221	{
4222	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4223	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4224
4225	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4226	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4227	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4228	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4229	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4230	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4231	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4232	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4233
4234	switch (pRenderState[i].state)
4235	{
4236	case SVGA3D_RS_SRCBLEND:
4237	srcRGB = blendop;
4238	break;
4239	case SVGA3D_RS_DSTBLEND:
4240	dstRGB = blendop;
4241	break;
4242	case SVGA3D_RS_SRCBLENDALPHA:
4243	srcAlpha = blendop;
4244	break;
4245	case SVGA3D_RS_DSTBLENDALPHA:
4246	dstAlpha = blendop;
4247	break;
4248	default:
4249	/* not possible; shut up gcc */
4250	AssertFailed();
4251	break;
4252	}
4253
4254	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4255	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4256	else
4257	glBlendFunc(srcRGB, dstRGB);
4258	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4259	break;
4260	}
4261
4262	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4263	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4264	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4265	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4266	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4267	else
4268	{
4269	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4270	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4271	#else
4272	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4273	#endif
4274	}
4275	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4276	break;
4277
4278	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4279	{
4280	GLfloat red, green, blue, alpha;
4281
4282	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4283
4284	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4285	glBlendColor(red, green, blue, alpha);
4286	#else
4287	pState->ext.glBlendColor(red, green, blue, alpha);
4288	#endif
4289	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4290	break;
4291	}
4292
4293	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4294	{
4295	GLenum mode = GL_BACK; /* default for OpenGL */
4296
4297	switch (pRenderState[i].uintValue)
4298	{
4299	case SVGA3D_FACE_NONE:
4300	break;
4301	case SVGA3D_FACE_FRONT:
4302	mode = GL_FRONT;
4303	break;
4304	case SVGA3D_FACE_BACK:
4305	mode = GL_BACK;
4306	break;
4307	case SVGA3D_FACE_FRONT_BACK:
4308	mode = GL_FRONT_AND_BACK;
4309	break;
4310	default:
4311	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4312	break;
4313	}
4314	enableCap = GL_CULL_FACE;
4315	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4316	{
4317	glCullFace(mode);
4318	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4319	val = 1;
4320	}
4321	else
4322	val = 0;
4323	break;
4324	}
4325
4326	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4327	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4328	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4329	break;
4330
4331	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4332	{
4333	GLclampf ref;
4334
4335	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4337	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4338	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4339	break;
4340	}
4341
4342	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4343	{
4344	GLint func;
4345
4346	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4347	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4348	glAlphaFunc(func, pRenderState[i].floatValue);
4349	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4350	break;
4351	}
4352
4353	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4354	enableCap = GL_STENCIL_TEST;
4355	val = pRenderState[i].uintValue;
4356	break;
4357
4358	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4359	case SVGA3D_RS_STENCILREF: /* uint32_t */
4360	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4361	{
4362	GLint func, ref;
4363	GLuint mask;
4364
4365	glGetIntegerv(GL_STENCIL_FUNC, &func);
4366	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4367	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4368	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4369	glGetIntegerv(GL_STENCIL_REF, &ref);
4370	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4371
4372	switch (pRenderState[i].state)
4373	{
4374	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4375	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4376	break;
4377
4378	case SVGA3D_RS_STENCILREF: /* uint32_t */
4379	ref = pRenderState[i].uintValue;
4380	break;
4381
4382	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4383	mask = pRenderState[i].uintValue;
4384	break;
4385
4386	default:
4387	/* not possible; shut up gcc */
4388	AssertFailed();
4389	break;
4390	}
4391
4392	glStencilFunc(func, ref, mask);
4393	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4394	break;
4395	}
4396
4397	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4398	glStencilMask(pRenderState[i].uintValue);
4399	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4400	break;
4401
4402	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4403	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4404	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4405	{
4406	GLint sfail, dpfail, dppass;
4407	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4408
4409	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4410	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4411	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4413	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4414	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4415
4416	switch (pRenderState[i].state)
4417	{
4418	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4419	sfail = stencilop;
4420	break;
4421	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4422	dpfail = stencilop;
4423	break;
4424	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4425	dppass = stencilop;
4426	break;
4427	default:
4428	/* not possible; shut up gcc */
4429	AssertFailed();
4430	break;
4431	}
4432	glStencilOp(sfail, dpfail, dppass);
4433	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4434	break;
4435	}
4436
4437	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4438	/* @note GL_EXT_stencil_two_side required! */
4439	if (pState->ext.fEXT_stencil_two_side)
4440	{
4441	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4442	val = pRenderState[i].uintValue;
4443	}
4444	else
4445	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4446	break;
4447
4448	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4449	{
4450	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4451	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4452	*/
4453	GLint ref;
4454	GLuint mask;
4455
4456	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4457	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4458	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4459	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4460
4461	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4462	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4463	break;
4464	}
4465
4466	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4467	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4468	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4469	{
4470	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4471	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4472	*/
4473	GLint sfail, dpfail, dppass;
4474	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4475
4476	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4478	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4479	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4480	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4481	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4482
4483	switch (pRenderState[i].state)
4484	{
4485	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4486	sfail = stencilop;
4487	break;
4488	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4489	dpfail = stencilop;
4490	break;
4491	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4492	dppass = stencilop;
4493	break;
4494	default:
4495	/* not possible; shut up gcc */
4496	AssertFailed();
4497	break;
4498	}
4499	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4500	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4501	break;
4502	}
4503
4504	case SVGA3D_RS_ZBIAS: /* float */
4505	/** @todo unknown meaning; depth bias is not identical
4506	renderState = D3DRS_DEPTHBIAS;
4507	val = pRenderState[i].uintValue;
4508	*/
4509	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4510	break;
4511
4512	case SVGA3D_RS_DEPTHBIAS: /* float */
4513	{
4514	GLfloat factor;
4515
4516	/** @todo not sure if the d3d & ogl definitions are identical. */
4517
4518	/* Do not change the factor part. */
4519	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4520	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4521
4522	glPolygonOffset(factor, pRenderState[i].floatValue);
4523	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4524	break;
4525	}
4526
4527	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4528	{
4529	GLfloat units;
4530
4531	/** @todo not sure if the d3d & ogl definitions are identical. */
4532
4533	/* Do not change the factor part. */
4534	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4535	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4536
4537	glPolygonOffset(pRenderState[i].floatValue, units);
4538	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4539	break;
4540	}
4541
4542	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4543	{
4544	GLboolean red, green, blue, alpha;
4545	SVGA3dColorMask mask;
4546
4547	mask.uintValue = pRenderState[i].uintValue;
4548
4549	red = mask.s.red;
4550	green = mask.s.green;
4551	blue = mask.s.blue;
4552	alpha = mask.s.alpha;
4553
4554	glColorMask(red, green, blue, alpha);
4555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4556	break;
4557	}
4558
4559	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4560	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4561	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4562	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4563	break;
4564
4565	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4566	enableCap = GL_SCISSOR_TEST;
4567	val = pRenderState[i].uintValue;
4568	break;
4569
4570	#if 0
4571	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4572	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4573	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4574	val = pRenderState[i].uintValue;
4575	break;
4576
4577	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4578	renderState = D3DRS_SPECULARMATERIALSOURCE;
4579	val = pRenderState[i].uintValue;
4580	break;
4581
4582	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4583	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4584	val = pRenderState[i].uintValue;
4585	break;
4586
4587	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4588	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4589	val = pRenderState[i].uintValue;
4590	break;
4591	#endif
4592
4593	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4594	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4595	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4596	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4597	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4598	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4599	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4600	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4601	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4602	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4603	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4604	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4605	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4606	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4607	break;
4608
4609	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4610	case SVGA3D_RS_TWEENFACTOR: /* float */
4611	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4612	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4613	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4614	break;
4615
4616	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4617	enableCap = GL_MULTISAMPLE;
4618	val = pRenderState[i].uintValue;
4619	break;
4620
4621	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4622	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4623	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4624	break;
4625
4626	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4627	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4628	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4629	/*
4630	renderState = D3DRS_COORDINATETYPE;
4631	val = pRenderState[i].uintValue;
4632	*/
4633	break;
4634
4635	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4636	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4637	/* Invert the selected mode because of y-inversion (?) */
4638	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4639	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4640	break;
4641
4642	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4643	//AssertFailed();
4644	/*
4645	D3DRS_SRGBWRITEENABLE ??
4646	renderState = D3DRS_OUTPUTGAMMA;
4647	val = pRenderState[i].uintValue;
4648	*/
4649	break;
4650
4651	#if 0
4652
4653	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4654	//AssertFailed();
4655	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4656	val = pRenderState[i].uintValue;
4657	break;
4658
4659	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4660	renderState = D3DRS_TEXTUREFACTOR;
4661	val = pRenderState[i].uintValue;
4662	break;
4663
4664	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4665	renderState = D3DRS_LOCALVIEWER;
4666	val = pRenderState[i].uintValue;
4667	break;
4668
4669	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4670	AssertFailed();
4671	/*
4672	renderState = D3DRS_ZVISIBLE;
4673	val = pRenderState[i].uintValue;
4674	*/
4675	break;
4676
4677	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4678	renderState = D3DRS_CLIPPING;
4679	val = pRenderState[i].uintValue;
4680	break;
4681
4682	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4683	glTexParameter GL_TEXTURE_WRAP_S
4684	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4685	renderState = D3DRS_WRAP0;
4686	val = pRenderState[i].uintValue;
4687	break;
4688
4689	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4690	glTexParameter GL_TEXTURE_WRAP_T
4691	renderState = D3DRS_WRAP1;
4692	val = pRenderState[i].uintValue;
4693	break;
4694
4695	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4696	glTexParameter GL_TEXTURE_WRAP_R
4697	renderState = D3DRS_WRAP2;
4698	val = pRenderState[i].uintValue;
4699	break;
4700
4701
4702	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4703	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4704	val = pRenderState[i].uintValue;
4705	break;
4706
4707
4708	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4709	renderState = D3DRS_BLENDOPALPHA;
4710	val = pRenderState[i].uintValue;
4711	break;
4712
4713	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4714	AssertFailed();
4715	/*
4716	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4717	val = pRenderState[i].uintValue;
4718	*/
4719	break;
4720
4721	#endif
4722	default:
4723	AssertFailed();
4724	break;
4725	}
4726
4727	if (enableCap != ~(GLenum)0)
4728	{
4729	if (val)
4730	glEnable(enableCap);
4731	else
4732	glDisable(enableCap);
4733	}
4734	}
4735
4736	return VINF_SUCCESS;
4737	}
4738
4739	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4740	{
4741	PVMSVGA3DCONTEXT pContext;
4742	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4743	PVMSVGA3DSURFACE pRenderTarget;
4744
4745	AssertReturn(pState, VERR_NO_MEMORY);
4746	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4747	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4748
4749	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4750
4751	if ( cid >= pState->cContexts
4752	\|\| pState->papContexts[cid]->id != cid)
4753	{
4754	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4755	return VERR_INVALID_PARAMETER;
4756	}
4757	pContext = pState->papContexts[cid];
4758	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4759
4760	/* Save for vm state save/restore. */
4761	pContext->state.aRenderTargets[type] = target.sid;
4762
4763	if (target.sid == SVGA3D_INVALID_ID)
4764	{
4765	/* Disable render target. */
4766	switch (type)
4767	{
4768	case SVGA3D_RT_DEPTH:
4769	case SVGA3D_RT_STENCIL:
4770	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4771	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4772	break;
4773
4774	case SVGA3D_RT_COLOR0:
4775	case SVGA3D_RT_COLOR1:
4776	case SVGA3D_RT_COLOR2:
4777	case SVGA3D_RT_COLOR3:
4778	case SVGA3D_RT_COLOR4:
4779	case SVGA3D_RT_COLOR5:
4780	case SVGA3D_RT_COLOR6:
4781	case SVGA3D_RT_COLOR7:
4782	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4783	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4785	break;
4786
4787	default:
4788	AssertFailedReturn(VERR_INVALID_PARAMETER);
4789	}
4790	return VINF_SUCCESS;
4791	}
4792
4793	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4794	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4795	pRenderTarget = pState->papSurfaces[target.sid];
4796
4797	switch (type)
4798	{
4799	case SVGA3D_RT_DEPTH:
4800	case SVGA3D_RT_STENCIL:
4801	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4802	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4803	{
4804	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4805	pContext = &pState->SharedCtx;
4806	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4807
4808	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4809	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4810
4811	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4812	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4813
4814	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4815	pRenderTarget->internalFormatGL,
4816	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4817	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4818	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4819
4820	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4821	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4822
4823	pContext = pState->papContexts[cid];
4824	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4825	pRenderTarget->idWeakContextAssociation = cid;
4826	}
4827
4828	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4830	Assert(!pRenderTarget->fDirty);
4831	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4832
4833	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4834
4835	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4836	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4837	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4838	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4839	break;
4840
4841	case SVGA3D_RT_COLOR0:
4842	case SVGA3D_RT_COLOR1:
4843	case SVGA3D_RT_COLOR2:
4844	case SVGA3D_RT_COLOR3:
4845	case SVGA3D_RT_COLOR4:
4846	case SVGA3D_RT_COLOR5:
4847	case SVGA3D_RT_COLOR6:
4848	case SVGA3D_RT_COLOR7:
4849	{
4850	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4851	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4852	{
4853	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));
4854	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4855	AssertRCReturn(rc, rc);
4856	}
4857
4858	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4859	Assert(!pRenderTarget->fDirty);
4860
4861	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4862
4863	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4864	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4865
4866	pContext->sidRenderTarget = target.sid;
4867
4868	#ifdef DEBUG
4869	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4870	if (status != GL_FRAMEBUFFER_COMPLETE)
4871	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4872	#endif
4873	/** @todo use glDrawBuffers too? */
4874	break;
4875	}
4876
4877	default:
4878	AssertFailedReturn(VERR_INVALID_PARAMETER);
4879	}
4880
4881	return VINF_SUCCESS;
4882	}
4883
4884	#if 0
4885	/**
4886	* Convert SVGA texture combiner value to its D3D equivalent
4887	*/
4888	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4889	{
4890	switch (value)
4891	{
4892	case SVGA3D_TC_DISABLE:
4893	return D3DTOP_DISABLE;
4894	case SVGA3D_TC_SELECTARG1:
4895	return D3DTOP_SELECTARG1;
4896	case SVGA3D_TC_SELECTARG2:
4897	return D3DTOP_SELECTARG2;
4898	case SVGA3D_TC_MODULATE:
4899	return D3DTOP_MODULATE;
4900	case SVGA3D_TC_ADD:
4901	return D3DTOP_ADD;
4902	case SVGA3D_TC_ADDSIGNED:
4903	return D3DTOP_ADDSIGNED;
4904	case SVGA3D_TC_SUBTRACT:
4905	return D3DTOP_SUBTRACT;
4906	case SVGA3D_TC_BLENDTEXTUREALPHA:
4907	return D3DTOP_BLENDTEXTUREALPHA;
4908	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4909	return D3DTOP_BLENDDIFFUSEALPHA;
4910	case SVGA3D_TC_BLENDCURRENTALPHA:
4911	return D3DTOP_BLENDCURRENTALPHA;
4912	case SVGA3D_TC_BLENDFACTORALPHA:
4913	return D3DTOP_BLENDFACTORALPHA;
4914	case SVGA3D_TC_MODULATE2X:
4915	return D3DTOP_MODULATE2X;
4916	case SVGA3D_TC_MODULATE4X:
4917	return D3DTOP_MODULATE4X;
4918	case SVGA3D_TC_DSDT:
4919	AssertFailed(); /** @todo ??? */
4920	return D3DTOP_DISABLE;
4921	case SVGA3D_TC_DOTPRODUCT3:
4922	return D3DTOP_DOTPRODUCT3;
4923	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4924	return D3DTOP_BLENDTEXTUREALPHAPM;
4925	case SVGA3D_TC_ADDSIGNED2X:
4926	return D3DTOP_ADDSIGNED2X;
4927	case SVGA3D_TC_ADDSMOOTH:
4928	return D3DTOP_ADDSMOOTH;
4929	case SVGA3D_TC_PREMODULATE:
4930	return D3DTOP_PREMODULATE;
4931	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4932	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4933	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4934	return D3DTOP_MODULATECOLOR_ADDALPHA;
4935	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4936	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4937	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4938	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4939	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4940	return D3DTOP_BUMPENVMAPLUMINANCE;
4941	case SVGA3D_TC_MULTIPLYADD:
4942	return D3DTOP_MULTIPLYADD;
4943	case SVGA3D_TC_LERP:
4944	return D3DTOP_LERP;
4945	default:
4946	AssertFailed();
4947	return D3DTOP_DISABLE;
4948	}
4949	}
4950
4951	/**
4952	* Convert SVGA texture arg data value to its D3D equivalent
4953	*/
4954	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4955	{
4956	switch (value)
4957	{
4958	case SVGA3D_TA_CONSTANT:
4959	return D3DTA_CONSTANT;
4960	case SVGA3D_TA_PREVIOUS:
4961	return D3DTA_CURRENT; /* current = previous */
4962	case SVGA3D_TA_DIFFUSE:
4963	return D3DTA_DIFFUSE;
4964	case SVGA3D_TA_TEXTURE:
4965	return D3DTA_TEXTURE;
4966	case SVGA3D_TA_SPECULAR:
4967	return D3DTA_SPECULAR;
4968	default:
4969	AssertFailed();
4970	return 0;
4971	}
4972	}
4973
4974	/**
4975	* Convert SVGA texture transform flag value to its D3D equivalent
4976	*/
4977	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4978	{
4979	switch (value)
4980	{
4981	case SVGA3D_TEX_TRANSFORM_OFF:
4982	return D3DTTFF_DISABLE;
4983	case SVGA3D_TEX_TRANSFORM_S:
4984	return D3DTTFF_COUNT1; /** @todo correct? */
4985	case SVGA3D_TEX_TRANSFORM_T:
4986	return D3DTTFF_COUNT2; /** @todo correct? */
4987	case SVGA3D_TEX_TRANSFORM_R:
4988	return D3DTTFF_COUNT3; /** @todo correct? */
4989	case SVGA3D_TEX_TRANSFORM_Q:
4990	return D3DTTFF_COUNT4; /** @todo correct? */
4991	case SVGA3D_TEX_PROJECTED:
4992	return D3DTTFF_PROJECTED;
4993	default:
4994	AssertFailed();
4995	return 0;
4996	}
4997	}
4998	#endif
4999
5000	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5001	{
5002	switch (value)
5003	{
5004	case SVGA3D_TEX_ADDRESS_WRAP:
5005	return GL_REPEAT;
5006	case SVGA3D_TEX_ADDRESS_MIRROR:
5007	return GL_MIRRORED_REPEAT;
5008	case SVGA3D_TEX_ADDRESS_CLAMP:
5009	return GL_CLAMP_TO_EDGE;
5010	case SVGA3D_TEX_ADDRESS_BORDER:
5011	return GL_CLAMP_TO_BORDER;
5012	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5013	AssertFailed();
5014	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5015
5016	case SVGA3D_TEX_ADDRESS_EDGE:
5017	case SVGA3D_TEX_ADDRESS_INVALID:
5018	default:
5019	AssertFailed();
5020	return GL_REPEAT; /* default */
5021	}
5022	}
5023
5024	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5025	{
5026	switch (value)
5027	{
5028	case SVGA3D_TEX_FILTER_NONE:
5029	case SVGA3D_TEX_FILTER_LINEAR:
5030	return GL_LINEAR;
5031	case SVGA3D_TEX_FILTER_NEAREST:
5032	return GL_NEAREST;
5033	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5034	/** @todo */
5035	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5036	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5037	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5038	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5039	default:
5040	AssertFailed();
5041	return GL_LINEAR; /* default */
5042	}
5043	}
5044
5045	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5046	{
5047	/* flip the red and blue bytes */
5048	uint8_t blue = value & 0xff;
5049	uint8_t red = (value >> 16) & 0xff;
5050	return (value & 0xff00ff00) \| red \| (blue << 16);
5051	}
5052
5053	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5054	{
5055	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5056	GLenum currentStage = ~(GLenum)0;
5057	PVMSVGA3DCONTEXT pContext;
5058	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5059	AssertReturn(pState, VERR_NO_MEMORY);
5060
5061	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5062
5063	if ( cid >= pState->cContexts
5064	\|\| pState->papContexts[cid]->id != cid)
5065	{
5066	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5067	return VERR_INVALID_PARAMETER;
5068	}
5069	pContext = pState->papContexts[cid];
5070	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5071
5072	for (unsigned i = 0; i < cTextureStates; i++)
5073	{
5074	GLenum textureType = ~(GLenum)0;
5075	#if 0
5076	GLenum samplerType = ~(GLenum)0;
5077	#endif
5078
5079	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));
5080	/* Record the texture state for vm state saving. */
5081	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5082	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5083	{
5084	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5085	}
5086
5087	/* Active the right texture unit for subsequent texture state changes. */
5088	if (pTextureState[i].stage != currentStage \|\| i == 0)
5089	{
5090	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5091	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5092	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5093	{
5094	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5095	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5096	currentStage = pTextureState[i].stage;
5097	}
5098	else
5099	{
5100	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5101	continue;
5102	}
5103	}
5104
5105	switch (pTextureState[i].name)
5106	{
5107	case SVGA3D_TS_BUMPENVMAT00: /* float */
5108	case SVGA3D_TS_BUMPENVMAT01: /* float */
5109	case SVGA3D_TS_BUMPENVMAT10: /* float */
5110	case SVGA3D_TS_BUMPENVMAT11: /* float */
5111	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5112	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5113	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5114	break;
5115
5116	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5117	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5118	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5119	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5120	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5121	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5122	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5123	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5124	/** @todo not used by MesaGL */
5125	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5126	break;
5127	#if 0
5128
5129	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5130	textureType = D3DTSS_TEXCOORDINDEX;
5131	val = pTextureState[i].value;
5132	break;
5133
5134	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5135	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5136	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5137	break;
5138	#endif
5139
5140	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5141	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5142	{
5143	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5144	currentStage, pTextureState[i].value, pContext->aSidActiveTextures[currentStage]));
5145
5146	pContext->aSidActiveTextures[currentStage] = SVGA3D_INVALID_ID;
5147	/* Unselect the currently associated texture. */
5148	glBindTexture(GL_TEXTURE_2D, 0);
5149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5150	/* Necessary for the fixed pipeline. */
5151	glDisable(GL_TEXTURE_2D);
5152	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5153	}
5154	else
5155	{
5156	uint32_t sid = pTextureState[i].value;
5157
5158	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5159	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5160
5161	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5162
5163	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5164	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].mipmapSize.width,
5165	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5166
5167	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5168	{
5169	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5170	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5171	AssertRCReturn(rc, rc);
5172	}
5173
5174	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5175	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5176
5177	/* Necessary for the fixed pipeline. */
5178	glEnable(GL_TEXTURE_2D);
5179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5180
5181	if (pContext->aSidActiveTextures[currentStage] != sid)
5182	{
5183	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5184	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5185	{
5186	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5187	{
5188	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5189
5190	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5191	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5192	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5193	}
5194	}
5195	}
5196	pContext->aSidActiveTextures[currentStage] = sid;
5197	}
5198	/* Finished; continue with the next one. */
5199	continue;
5200
5201	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5202	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5203	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5204	break;
5205
5206	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5207	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5208	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5209	break;
5210
5211	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5212	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5213	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5214	break;
5215
5216	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5217	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5218	{
5219	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5220	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5221
5222	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5223	textureType = GL_TEXTURE_MIN_FILTER;
5224	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5225	{
5226	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5227	{
5228	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5229	val = GL_NEAREST_MIPMAP_LINEAR;
5230	else
5231	val = GL_NEAREST_MIPMAP_NEAREST;
5232	}
5233	else
5234	{
5235	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5236	val = GL_LINEAR_MIPMAP_LINEAR;
5237	else
5238	val = GL_LINEAR_MIPMAP_NEAREST;
5239	}
5240	}
5241	else
5242	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5243	break;
5244	}
5245
5246	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5247	textureType = GL_TEXTURE_MAG_FILTER;
5248	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5249	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5250	break;
5251
5252	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5253	{
5254	GLfloat color[4]; /* red, green, blue, alpha */
5255
5256	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5257
5258	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5259	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5260	break;
5261	}
5262
5263	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5264	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5265	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5266	break;
5267
5268	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5269	textureType = GL_TEXTURE_BASE_LEVEL;
5270	val = pTextureState[i].value;
5271	break;
5272
5273	#if 0
5274	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5275	samplerType = D3DSAMP_MAXANISOTROPY;
5276	val = pTextureState[i].value; /* Identical?? */
5277	break;
5278
5279	case SVGA3D_TS_GAMMA: /* float */
5280	samplerType = D3DSAMP_SRGBTEXTURE;
5281	/* Boolean in D3D */
5282	if (pTextureState[i].floatValue == 1.0f)
5283	val = FALSE;
5284	else
5285	val = TRUE;
5286	break;
5287	#endif
5288	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5289	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5290	AssertFailed();
5291	break;
5292
5293	default:
5294	//AssertFailed();
5295	break;
5296	}
5297
5298	if (textureType != ~(GLenum)0)
5299	{
5300	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5301	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5302	}
5303	}
5304
5305	return VINF_SUCCESS;
5306	}
5307
5308	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5309	{
5310	PVMSVGA3DCONTEXT pContext;
5311	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5312	AssertReturn(pState, VERR_NO_MEMORY);
5313	GLenum oglFace;
5314
5315	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5316
5317	if ( cid >= pState->cContexts
5318	\|\| pState->papContexts[cid]->id != cid)
5319	{
5320	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5321	return VERR_INVALID_PARAMETER;
5322	}
5323	pContext = pState->papContexts[cid];
5324	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5325
5326	switch (face)
5327	{
5328	case SVGA3D_FACE_NONE:
5329	case SVGA3D_FACE_FRONT:
5330	oglFace = GL_FRONT;
5331	break;
5332
5333	case SVGA3D_FACE_BACK:
5334	oglFace = GL_BACK;
5335	break;
5336
5337	case SVGA3D_FACE_FRONT_BACK:
5338	oglFace = GL_FRONT_AND_BACK;
5339	break;
5340
5341	default:
5342	AssertFailedReturn(VERR_INVALID_PARAMETER);
5343	}
5344
5345	/* Save for vm state save/restore. */
5346	pContext->state.aMaterial[face].fValid = true;
5347	pContext->state.aMaterial[face].material = *pMaterial;
5348	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5349
5350	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5351	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5352	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5353	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5354	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5355	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5356
5357	return VINF_SUCCESS;
5358	}
5359
5360	/** @todo Move into separate library as we are using logic from Wine here. */
5361	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5362	{
5363	PVMSVGA3DCONTEXT pContext;
5364	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5365	AssertReturn(pState, VERR_NO_MEMORY);
5366	float QuadAttenuation;
5367
5368	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5369
5370	if ( cid >= pState->cContexts
5371	\|\| pState->papContexts[cid]->id != cid)
5372	{
5373	Log(("vmsvga3dSetLightData invalid context id!\n"));
5374	return VERR_INVALID_PARAMETER;
5375	}
5376	pContext = pState->papContexts[cid];
5377	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5378
5379	/* Store for vm state save/restore */
5380	if (index < SVGA3D_MAX_LIGHTS)
5381	{
5382	pContext->state.aLightData[index].fValidData = true;
5383	pContext->state.aLightData[index].data = *pData;
5384	}
5385	else
5386	AssertFailed();
5387
5388	if ( pData->attenuation0 < 0.0f
5389	\|\| pData->attenuation1 < 0.0f
5390	\|\| pData->attenuation2 < 0.0f)
5391	{
5392	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5393	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5394	}
5395
5396	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5397	glMatrixMode(GL_MODELVIEW);
5398	glPushMatrix();
5399	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5400
5401	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5402	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5403	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5404
5405	if (pData->range * pData->range >= FLT_MIN)
5406	QuadAttenuation = 1.4f / (pData->range * pData->range);
5407	else
5408	QuadAttenuation = 0.0f;
5409
5410	switch (pData->type)
5411	{
5412	case SVGA3D_LIGHTTYPE_POINT:
5413	{
5414	GLfloat position[4];
5415
5416	position[0] = pData->position[0];
5417	position[1] = pData->position[1];
5418	position[2] = pData->position[2];
5419	position[3] = 1.0f;
5420
5421	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5422	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5423
5424	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5425	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5426
5427	/* Attenuation - Are these right? guessing... */
5428	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5429	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5430
5431	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5432	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5433
5434	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5435	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5436
5437	/** @todo range */
5438	break;
5439	}
5440
5441	case SVGA3D_LIGHTTYPE_SPOT1:
5442	{
5443	GLfloat exponent;
5444	GLfloat position[4];
5445	const GLfloat pi = 4.0f * atanf(1.0f);
5446
5447	position[0] = pData->position[0];
5448	position[1] = pData->position[1];
5449	position[2] = pData->position[2];
5450	position[3] = 1.0f;
5451
5452	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5453	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5454
5455	position[0] = pData->direction[0];
5456	position[1] = pData->direction[1];
5457	position[2] = pData->direction[2];
5458	position[3] = 1.0f;
5459
5460	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5461	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5462
5463	/*
5464	* opengl-ish and d3d-ish spot lights use too different models for the
5465	* light "intensity" as a function of the angle towards the main light direction,
5466	* so we only can approximate very roughly.
5467	* however spot lights are rather rarely used in games (if ever used at all).
5468	* furthermore if still used, probably nobody pays attention to such details.
5469	*/
5470	if (pData->falloff == 0)
5471	{
5472	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5473	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5474	* will always be 1.0 for both of them, and we don't have to care for the
5475	* rest of the rather complex calculation
5476	*/
5477	exponent = 0.0f;
5478	}
5479	else
5480	{
5481	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5482	if (rho < 0.0001f)
5483	rho = 0.0001f;
5484	exponent = -0.3f/log(cos(rho/2));
5485	}
5486	if (exponent > 128.0f)
5487	exponent = 128.0f;
5488
5489	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5490	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5491
5492	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5493	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5494
5495	/* Attenuation - Are these right? guessing... */
5496	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5497	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5498
5499	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5500	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5501
5502	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5503	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5504
5505	/** @todo range */
5506	break;
5507	}
5508
5509	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5510	{
5511	GLfloat position[4];
5512
5513	position[0] = -pData->direction[0];
5514	position[1] = -pData->direction[1];
5515	position[2] = -pData->direction[2];
5516	position[3] = 0.0f;
5517
5518	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5519	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5520
5521	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5522	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5523
5524	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5525	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5526	break;
5527	}
5528
5529	case SVGA3D_LIGHTTYPE_SPOT2:
5530	default:
5531	Log(("Unsupported light type!!\n"));
5532	return VERR_INVALID_PARAMETER;
5533	}
5534
5535	/* Restore the modelview matrix */
5536	glPopMatrix();
5537
5538	return VINF_SUCCESS;
5539	}
5540
5541	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5542	{
5543	PVMSVGA3DCONTEXT pContext;
5544	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5545	AssertReturn(pState, VERR_NO_MEMORY);
5546
5547	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5548
5549	if ( cid >= pState->cContexts
5550	\|\| pState->papContexts[cid]->id != cid)
5551	{
5552	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5553	return VERR_INVALID_PARAMETER;
5554	}
5555	pContext = pState->papContexts[cid];
5556	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5557
5558	/* Store for vm state save/restore */
5559	if (index < SVGA3D_MAX_LIGHTS)
5560	pContext->state.aLightData[index].fEnabled = !!enabled;
5561	else
5562	AssertFailed();
5563
5564	if (enabled)
5565	{
5566	/* Load the default settings if none have been set yet. */
5567	if (!pContext->state.aLightData[index].fValidData)
5568	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5569	glEnable(GL_LIGHT0 + index);
5570	}
5571	else
5572	glDisable(GL_LIGHT0 + index);
5573
5574	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5575	return VINF_SUCCESS;
5576	}
5577
5578	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5579	{
5580	PVMSVGA3DCONTEXT pContext;
5581	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5582	AssertReturn(pState, VERR_NO_MEMORY);
5583
5584	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5585
5586	if ( cid >= pState->cContexts
5587	\|\| pState->papContexts[cid]->id != cid)
5588	{
5589	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5590	return VERR_INVALID_PARAMETER;
5591	}
5592	pContext = pState->papContexts[cid];
5593	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5594
5595	/* Save for vm state save/restore. */
5596	pContext->state.RectViewPort = *pRect;
5597	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5598
5599	/** @todo y-inversion for partial viewport coordinates? */
5600	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5601	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5602
5603	/* Reset the projection matrix as that relies on the viewport setting. */
5604	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5605	{
5606	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5607	}
5608	else
5609	{
5610	float matrix[16];
5611
5612	/* identity matrix if no matrix set. */
5613	memset(matrix, 0, sizeof(matrix));
5614	matrix[0] = 1.0;
5615	matrix[5] = 1.0;
5616	matrix[10] = 1.0;
5617	matrix[15] = 1.0;
5618	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5619	}
5620
5621	return VINF_SUCCESS;
5622	}
5623
5624	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5625	{
5626	PVMSVGA3DCONTEXT pContext;
5627	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5628	AssertReturn(pState, VERR_NO_MEMORY);
5629	double oglPlane[4];
5630
5631	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)));
5632	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5633
5634	if ( cid >= pState->cContexts
5635	\|\| pState->papContexts[cid]->id != cid)
5636	{
5637	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5638	return VERR_INVALID_PARAMETER;
5639	}
5640	pContext = pState->papContexts[cid];
5641	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5642
5643	/* Store for vm state save/restore. */
5644	pContext->state.aClipPlane[index].fValid = true;
5645	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5646
5647	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5648	oglPlane[0] = (double)plane[0];
5649	oglPlane[1] = (double)plane[1];
5650	oglPlane[2] = (double)plane[2];
5651	oglPlane[3] = (double)plane[3];
5652
5653	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5655
5656	return VINF_SUCCESS;
5657	}
5658
5659	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5660	{
5661	PVMSVGA3DCONTEXT pContext;
5662	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5663	AssertReturn(pState, VERR_NO_MEMORY);
5664
5665	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5666
5667	if ( cid >= pState->cContexts
5668	\|\| pState->papContexts[cid]->id != cid)
5669	{
5670	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5671	return VERR_INVALID_PARAMETER;
5672	}
5673	pContext = pState->papContexts[cid];
5674	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5675
5676	/* Store for vm state save/restore. */
5677	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5678	pContext->state.RectScissor = *pRect;
5679
5680	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5681	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5682
5683	return VINF_SUCCESS;
5684	}
5685
5686	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5687	{
5688	/* Convert byte color components to float (0-1.0) */
5689	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5690	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5691	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5692	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5693	}
5694
5695	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5696	uint32_t cRects, SVGA3dRect *pRect)
5697	{
5698	GLbitfield mask = 0;
5699	PVMSVGA3DCONTEXT pContext;
5700	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5701	AssertReturn(pState, VERR_NO_MEMORY);
5702	GLboolean fDepthWriteEnabled = GL_FALSE;
5703
5704	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));
5705
5706	if ( cid >= pState->cContexts
5707	\|\| pState->papContexts[cid]->id != cid)
5708	{
5709	Log(("vmsvga3dCommandClear invalid context id!\n"));
5710	return VERR_INVALID_PARAMETER;
5711	}
5712	pContext = pState->papContexts[cid];
5713	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5714
5715	if (clearFlag & SVGA3D_CLEAR_COLOR)
5716	{
5717	GLfloat red, green, blue, alpha;
5718
5719	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5720
5721	/* Set the color clear value. */
5722	glClearColor(red, green, blue, alpha);
5723
5724	mask \|= GL_COLOR_BUFFER_BIT;
5725	}
5726	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5727	{
5728	/** @todo possibly the same problem as with glDepthMask */
5729	glClearStencil(stencil);
5730	mask \|= GL_STENCIL_BUFFER_BIT;
5731	}
5732	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5733	{
5734	glClearDepth((GLdouble)depth);
5735	mask \|= GL_DEPTH_BUFFER_BIT;
5736
5737	/* glClear will not clear the depth buffer if writing is disabled. */
5738	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5739	if (fDepthWriteEnabled == GL_FALSE)
5740	glDepthMask(GL_TRUE);
5741	}
5742
5743	if (cRects)
5744	{
5745	/* Save the current scissor test bit and scissor box. */
5746	glPushAttrib(GL_SCISSOR_BIT);
5747	glEnable(GL_SCISSOR_TEST);
5748	for (unsigned i=0; i < cRects; i++)
5749	{
5750	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));
5751	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5752	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5753	glClear(mask);
5754	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5755	}
5756	/* Restore the old scissor test bit and box */
5757	glPopAttrib();
5758	}
5759	else
5760	{
5761	glClear(mask);
5762	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5763	}
5764
5765	/* Restore depth write state. */
5766	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5767	&& fDepthWriteEnabled == GL_FALSE)
5768	glDepthMask(GL_FALSE);
5769
5770	return VINF_SUCCESS;
5771	}
5772
5773	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5774	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5775	{
5776	normalized = GL_FALSE;
5777	switch (identity.type)
5778	{
5779	case SVGA3D_DECLTYPE_FLOAT1:
5780	size = 1;
5781	type = GL_FLOAT;
5782	break;
5783	case SVGA3D_DECLTYPE_FLOAT2:
5784	size = 2;
5785	type = GL_FLOAT;
5786	break;
5787	case SVGA3D_DECLTYPE_FLOAT3:
5788	size = 3;
5789	type = GL_FLOAT;
5790	break;
5791	case SVGA3D_DECLTYPE_FLOAT4:
5792	size = 4;
5793	type = GL_FLOAT;
5794	break;
5795
5796	case SVGA3D_DECLTYPE_D3DCOLOR:
5797	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5798	type = GL_UNSIGNED_BYTE;
5799	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5800	break;
5801
5802	case SVGA3D_DECLTYPE_UBYTE4N:
5803	normalized = GL_TRUE;
5804	RT_FALL_THRU();
5805	case SVGA3D_DECLTYPE_UBYTE4:
5806	size = 4;
5807	type = GL_UNSIGNED_BYTE;
5808	break;
5809
5810	case SVGA3D_DECLTYPE_SHORT2N:
5811	normalized = GL_TRUE;
5812	RT_FALL_THRU();
5813	case SVGA3D_DECLTYPE_SHORT2:
5814	size = 2;
5815	type = GL_SHORT;
5816	break;
5817
5818	case SVGA3D_DECLTYPE_SHORT4N:
5819	normalized = GL_TRUE;
5820	RT_FALL_THRU();
5821	case SVGA3D_DECLTYPE_SHORT4:
5822	size = 4;
5823	type = GL_SHORT;
5824	break;
5825
5826	case SVGA3D_DECLTYPE_USHORT4N:
5827	normalized = GL_TRUE;
5828	size = 4;
5829	type = GL_UNSIGNED_SHORT;
5830	break;
5831
5832	case SVGA3D_DECLTYPE_USHORT2N:
5833	normalized = GL_TRUE;
5834	size = 2;
5835	type = GL_UNSIGNED_SHORT;
5836	break;
5837
5838	case SVGA3D_DECLTYPE_UDEC3:
5839	size = 3;
5840	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5841	break;
5842
5843	case SVGA3D_DECLTYPE_DEC3N:
5844	normalized = true;
5845	size = 3;
5846	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5847	break;
5848
5849	case SVGA3D_DECLTYPE_FLOAT16_2:
5850	size = 2;
5851	type = GL_HALF_FLOAT;
5852	break;
5853	case SVGA3D_DECLTYPE_FLOAT16_4:
5854	size = 4;
5855	type = GL_HALF_FLOAT;
5856	break;
5857	default:
5858	AssertFailedReturn(VERR_INVALID_PARAMETER);
5859	}
5860
5861	//pVertexElement->Method = identity.method;
5862	//pVertexElement->Usage = identity.usage;
5863
5864	return VINF_SUCCESS;
5865	}
5866
5867	/* Convert VMWare primitive type to its OpenGL equivalent. */
5868	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5869	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5870	{
5871	switch (PrimitiveType)
5872	{
5873	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5874	*pMode = GL_TRIANGLES;
5875	pcVertices = cPrimitiveCount 3;
5876	break;
5877	case SVGA3D_PRIMITIVE_POINTLIST:
5878	*pMode = GL_POINTS;
5879	*pcVertices = cPrimitiveCount;
5880	break;
5881	case SVGA3D_PRIMITIVE_LINELIST:
5882	*pMode = GL_LINES;
5883	pcVertices = cPrimitiveCount 2;
5884	break;
5885	case SVGA3D_PRIMITIVE_LINESTRIP:
5886	*pMode = GL_LINE_STRIP;
5887	*pcVertices = cPrimitiveCount + 1;
5888	break;
5889	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5890	*pMode = GL_TRIANGLE_STRIP;
5891	*pcVertices = cPrimitiveCount + 2;
5892	break;
5893	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5894	*pMode = GL_TRIANGLE_FAN;
5895	*pcVertices = cPrimitiveCount + 2;
5896	break;
5897	default:
5898	return VERR_INVALID_PARAMETER;
5899	}
5900	return VINF_SUCCESS;
5901	}
5902
5903	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5904	{
5905	int rc;
5906
5907	/* Reset the view matrix (also takes the world matrix into account). */
5908	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5909	{
5910	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5911	}
5912	else
5913	{
5914	float matrix[16];
5915
5916	/* identity matrix if no matrix set. */
5917	memset(matrix, 0, sizeof(matrix));
5918	matrix[0] = 1.0;
5919	matrix[5] = 1.0;
5920	matrix[10] = 1.0;
5921	matrix[15] = 1.0;
5922	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5923	}
5924
5925	/* Reset the projection matrix. */
5926	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5927	{
5928	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5929	}
5930	else
5931	{
5932	float matrix[16];
5933
5934	/* identity matrix if no matrix set. */
5935	memset(matrix, 0, sizeof(matrix));
5936	matrix[0] = 1.0;
5937	matrix[5] = 1.0;
5938	matrix[10] = 1.0;
5939	matrix[15] = 1.0;
5940	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5941	}
5942	AssertRC(rc);
5943	return rc;
5944	}
5945
5946	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5947	{
5948	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5949	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5950	PVMSVGA3DSURFACE pVertexSurface;
5951
5952	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5953	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5954
5955	pVertexSurface = pState->papSurfaces[sidVertex];
5956	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5957
5958	/* Create and/or bind the vertex buffer. */
5959	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5960	{
5961	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5962	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5963	pContext = &pState->SharedCtx;
5964	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5965
5966	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5967	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5968
5969	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5970	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5971
5972	Assert(pVertexSurface->fDirty);
5973	/** @todo rethink usage dynamic/static */
5974	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5975	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5976
5977	pVertexSurface->pMipmapLevels[0].fDirty = false;
5978	pVertexSurface->fDirty = false;
5979
5980	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5981
5982	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5983	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5984
5985	pContext = pSavedCtx;
5986	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5987	}
5988
5989	Assert(pVertexSurface->fDirty == false);
5990	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5991	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5992
5993	/* Setup the vertex declarations. */
5994	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5995	{
5996	GLint size;
5997	GLenum type;
5998	GLboolean normalized;
5999	GLuint index = iVertexDeclBase + iVertex;
6000
6001	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));
6002
6003	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6004	AssertRCReturn(rc, rc);
6005
6006	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6007	{
6008	/* Use numbered vertex arrays when shaders are active. */
6009	pState->ext.glEnableVertexAttribArray(index);
6010	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6011	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6012	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6013	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6014	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6015	}
6016	else
6017	{
6018	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6019	switch (pVertexDecl[iVertex].identity.usage)
6020	{
6021	case SVGA3D_DECLUSAGE_POSITIONT:
6022	case SVGA3D_DECLUSAGE_POSITION:
6023	{
6024	glEnableClientState(GL_VERTEX_ARRAY);
6025	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6026	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6027	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6028	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6029	break;
6030	}
6031	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6032	AssertFailed();
6033	break;
6034	case SVGA3D_DECLUSAGE_BLENDINDICES:
6035	AssertFailed();
6036	break;
6037	case SVGA3D_DECLUSAGE_NORMAL:
6038	glEnableClientState(GL_NORMAL_ARRAY);
6039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6040	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6041	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6043	break;
6044	case SVGA3D_DECLUSAGE_PSIZE:
6045	AssertFailed();
6046	break;
6047	case SVGA3D_DECLUSAGE_TEXCOORD:
6048	/* Specify the affected texture unit. */
6049	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6050	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6051	#else
6052	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6053	#endif
6054	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6055	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6056	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6057	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6058	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6059	break;
6060	case SVGA3D_DECLUSAGE_TANGENT:
6061	AssertFailed();
6062	break;
6063	case SVGA3D_DECLUSAGE_BINORMAL:
6064	AssertFailed();
6065	break;
6066	case SVGA3D_DECLUSAGE_TESSFACTOR:
6067	AssertFailed();
6068	break;
6069	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6070	glEnableClientState(GL_COLOR_ARRAY);
6071	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6072	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6073	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6074	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6075	break;
6076	case SVGA3D_DECLUSAGE_FOG:
6077	glEnableClientState(GL_FOG_COORD_ARRAY);
6078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6079	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6080	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6081	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6082	break;
6083	case SVGA3D_DECLUSAGE_DEPTH:
6084	AssertFailed();
6085	break;
6086	case SVGA3D_DECLUSAGE_SAMPLE:
6087	AssertFailed();
6088	break;
6089	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6090	}
6091	}
6092
6093	#ifdef LOG_ENABLED
6094	if (pVertexDecl[iVertex].array.stride == 0)
6095	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6096	#endif
6097	}
6098
6099	return VINF_SUCCESS;
6100	}
6101
6102	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6103	{
6104	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6105
6106	/* Clean up the vertex declarations. */
6107	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6108	{
6109	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6110	{
6111	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6112	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6113	vmsvga3dResetTransformMatrices(pThis, pContext);
6114	}
6115
6116	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6117	{
6118	/* Use numbered vertex arrays when shaders are active. */
6119	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6120	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6121	}
6122	else
6123	{
6124	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6125	switch (pVertexDecl[iVertex].identity.usage)
6126	{
6127	case SVGA3D_DECLUSAGE_POSITION:
6128	case SVGA3D_DECLUSAGE_POSITIONT:
6129	glDisableClientState(GL_VERTEX_ARRAY);
6130	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6131	break;
6132	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6133	break;
6134	case SVGA3D_DECLUSAGE_BLENDINDICES:
6135	break;
6136	case SVGA3D_DECLUSAGE_NORMAL:
6137	glDisableClientState(GL_NORMAL_ARRAY);
6138	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6139	break;
6140	case SVGA3D_DECLUSAGE_PSIZE:
6141	break;
6142	case SVGA3D_DECLUSAGE_TEXCOORD:
6143	/* Specify the affected texture unit. */
6144	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6145	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6146	#else
6147	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6148	#endif
6149	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6150	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6151	break;
6152	case SVGA3D_DECLUSAGE_TANGENT:
6153	break;
6154	case SVGA3D_DECLUSAGE_BINORMAL:
6155	break;
6156	case SVGA3D_DECLUSAGE_TESSFACTOR:
6157	break;
6158	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6159	glDisableClientState(GL_COLOR_ARRAY);
6160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6161	break;
6162	case SVGA3D_DECLUSAGE_FOG:
6163	glDisableClientState(GL_FOG_COORD_ARRAY);
6164	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6165	break;
6166	case SVGA3D_DECLUSAGE_DEPTH:
6167	break;
6168	case SVGA3D_DECLUSAGE_SAMPLE:
6169	break;
6170	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6171	}
6172	}
6173	}
6174	/* Unbind the vertex buffer after usage. */
6175	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6176	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6177	return VINF_SUCCESS;
6178	}
6179
6180	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6181	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6182	SVGA3dVertexDivisor *pVertexDivisor)
6183	{
6184	RT_NOREF(pVertexDivisor);
6185	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6186	AssertReturn(pState, VERR_INTERNAL_ERROR);
6187	PVMSVGA3DCONTEXT pContext;
6188	int rc = VERR_NOT_IMPLEMENTED;
6189	uint32_t iCurrentVertex;
6190
6191	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6192
6193	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6194	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6195	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6196	/** @todo Non-zero cVertexDivisor */
6197	Assert(!cVertexDivisor);
6198
6199	if ( cid >= pState->cContexts
6200	\|\| pState->papContexts[cid]->id != cid)
6201	{
6202	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6203	return VERR_INVALID_PARAMETER;
6204	}
6205	pContext = pState->papContexts[cid];
6206	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6207
6208	/* Check for pretransformed vertex declarations. */
6209	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6210	{
6211	switch (pVertexDecl[iVertex].identity.usage)
6212	{
6213	case SVGA3D_DECLUSAGE_POSITIONT:
6214	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6215	RT_FALL_THRU();
6216	case SVGA3D_DECLUSAGE_POSITION:
6217	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6218	pContext->state.RectViewPort.h,
6219	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6220	break;
6221	default: /* Shut up MSC. */ break;
6222	}
6223	}
6224
6225	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6226	if (pContext->pShaderContext)
6227	{
6228	uint32_t rtHeight = 0;
6229
6230	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6231	{
6232	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
6233	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6234	}
6235
6236	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6237	}
6238
6239	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6240	iCurrentVertex = 0;
6241	while (iCurrentVertex < numVertexDecls)
6242	{
6243	uint32_t sidVertex = SVGA_ID_INVALID;
6244	uint32_t iVertex;
6245
6246	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6247	{
6248	if ( sidVertex != SVGA_ID_INVALID
6249	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6250	)
6251	break;
6252	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6253	}
6254
6255	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6256	AssertRCReturn(rc, rc);
6257
6258	iCurrentVertex = iVertex;
6259	}
6260
6261	/* Now draw the primitives. */
6262	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6263	{
6264	GLenum modeDraw;
6265	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6266	PVMSVGA3DSURFACE pIndexSurface = NULL;
6267	unsigned cVertices;
6268
6269	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6270	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6271	if (RT_FAILURE(rc))
6272	{
6273	AssertRC(rc);
6274	goto internal_error;
6275	}
6276
6277	if (sidIndex != SVGA3D_INVALID_ID)
6278	{
6279	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6280
6281	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6282	\|\| sidIndex >= pState->cSurfaces
6283	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6284	{
6285	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6286	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6287	rc = VERR_INVALID_PARAMETER;
6288	goto internal_error;
6289	}
6290	pIndexSurface = pState->papSurfaces[sidIndex];
6291	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6292
6293	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6294	{
6295	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6296	pContext = &pState->SharedCtx;
6297	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6298
6299	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6300	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6301
6302	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6303	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6304
6305	Assert(pIndexSurface->fDirty);
6306
6307	/** @todo rethink usage dynamic/static */
6308	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6309	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6310
6311	pIndexSurface->pMipmapLevels[0].fDirty = false;
6312	pIndexSurface->fDirty = false;
6313
6314	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6315
6316	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6317	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6318
6319	pContext = pState->papContexts[cid];
6320	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6321	}
6322	Assert(pIndexSurface->fDirty == false);
6323
6324	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6325	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6326	}
6327
6328	if (!pIndexSurface)
6329	{
6330	/* Render without an index buffer */
6331	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6332	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6333	}
6334	else
6335	{
6336	GLenum indexType;
6337
6338	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6339	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6340
6341	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6342	{
6343	indexType = GL_UNSIGNED_BYTE;
6344	}
6345	else
6346	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6347	{
6348	indexType = GL_UNSIGNED_SHORT;
6349	}
6350	else
6351	{
6352	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6353	indexType = GL_UNSIGNED_INT;
6354	}
6355
6356	/* Render with an index buffer */
6357	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));
6358	if (pRange[iPrimitive].indexBias == 0)
6359	glDrawElements(modeDraw,
6360	cVertices,
6361	indexType,
6362	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6363	else
6364	pState->ext.glDrawElementsBaseVertex(modeDraw,
6365	cVertices,
6366	indexType,
6367	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6368	pRange[iPrimitive].indexBias); /* basevertex */
6369
6370	/* Unbind the index buffer after usage. */
6371	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6372	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6373	}
6374	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6375	}
6376
6377	internal_error:
6378
6379	/* Deactivate the vertex declarations. */
6380	iCurrentVertex = 0;
6381	while (iCurrentVertex < numVertexDecls)
6382	{
6383	uint32_t sidVertex = SVGA_ID_INVALID;
6384	uint32_t iVertex;
6385
6386	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6387	{
6388	if ( sidVertex != SVGA_ID_INVALID
6389	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6390	)
6391	break;
6392	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6393	}
6394
6395	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6396	AssertRCReturn(rc, rc);
6397
6398	iCurrentVertex = iVertex;
6399	}
6400	#ifdef DEBUG
6401	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
6402	{
6403	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6404	{
6405	GLint activeTexture = 0;
6406	GLint activeTextureUnit = 0;
6407
6408	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6409	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6410	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6411	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6412
6413	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6414	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6415	pState->ext.glActiveTexture(activeTextureUnit);
6416	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6417
6418	# 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. */
6419	if (pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6420	{
6421	PVMSVGA3DSURFACE pTexture;
6422	pTexture = pState->papSurfaces[pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0]];
6423
6424	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6425	}
6426	# else
6427	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTextures[i]];
6428	AssertMsg(pTexture->id == pContext->aSidActiveTextures[i], ("%x vs %x\n", pTexture->id, pContext->aSidActiveTextures[i]));
6429	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6430	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6431	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6432	# endif
6433	}
6434	}
6435	#endif
6436
6437	#ifdef DEBUG_GFX_WINDOW
6438	if (pContext->sidRenderTarget)
6439	{
6440	SVGA3dCopyRect rect;
6441
6442	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6443	rect.w = pContext->state.RectViewPort.w;
6444	rect.h = pContext->state.RectViewPort.h;
6445	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6446	}
6447	#endif
6448
6449	return rc;
6450	}
6451
6452
6453	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6454	{
6455	PVMSVGA3DCONTEXT pContext;
6456	PVMSVGA3DSHADER pShader;
6457	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6458	AssertReturn(pState, VERR_NO_MEMORY);
6459	int rc;
6460
6461	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6462	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6463
6464	if ( cid >= pState->cContexts
6465	\|\| pState->papContexts[cid]->id != cid)
6466	{
6467	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6468	return VERR_INVALID_PARAMETER;
6469	}
6470	pContext = pState->papContexts[cid];
6471	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6472
6473	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6474	if (type == SVGA3D_SHADERTYPE_VS)
6475	{
6476	if (shid >= pContext->cVertexShaders)
6477	{
6478	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6479	AssertReturn(pvNew, VERR_NO_MEMORY);
6480	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6481	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6482	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6483	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6484	pContext->cVertexShaders = shid + 1;
6485	}
6486	/* If one already exists with this id, then destroy it now. */
6487	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6488	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6489
6490	pShader = &pContext->paVertexShader[shid];
6491	}
6492	else
6493	{
6494	Assert(type == SVGA3D_SHADERTYPE_PS);
6495	if (shid >= pContext->cPixelShaders)
6496	{
6497	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6498	AssertReturn(pvNew, VERR_NO_MEMORY);
6499	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6500	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6501	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6502	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6503	pContext->cPixelShaders = shid + 1;
6504	}
6505	/* If one already exists with this id, then destroy it now. */
6506	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6507	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6508
6509	pShader = &pContext->paPixelShader[shid];
6510	}
6511
6512	memset(pShader, 0, sizeof(*pShader));
6513	pShader->id = shid;
6514	pShader->cid = cid;
6515	pShader->type = type;
6516	pShader->cbData = cbData;
6517	pShader->pShaderProgram = RTMemAllocZ(cbData);
6518	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6519	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6520
6521	#ifdef DUMP_SHADER_DISASSEMBLY
6522	LPD3DXBUFFER pDisassembly;
6523	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6524	if (hr == D3D_OK)
6525	{
6526	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6527	pDisassembly->Release();
6528	}
6529	#endif
6530
6531	switch (type)
6532	{
6533	case SVGA3D_SHADERTYPE_VS:
6534	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6535	break;
6536
6537	case SVGA3D_SHADERTYPE_PS:
6538	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6539	break;
6540
6541	default:
6542	AssertFailedReturn(VERR_INVALID_PARAMETER);
6543	}
6544	if (rc != VINF_SUCCESS)
6545	{
6546	RTMemFree(pShader->pShaderProgram);
6547	memset(pShader, 0, sizeof(*pShader));
6548	pShader->id = SVGA3D_INVALID_ID;
6549	}
6550
6551	return rc;
6552	}
6553
6554	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6555	{
6556	PVMSVGA3DCONTEXT pContext;
6557	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6558	AssertReturn(pState, VERR_NO_MEMORY);
6559	PVMSVGA3DSHADER pShader = NULL;
6560	int rc;
6561
6562	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6563
6564	if ( cid >= pState->cContexts
6565	\|\| pState->papContexts[cid]->id != cid)
6566	{
6567	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6568	return VERR_INVALID_PARAMETER;
6569	}
6570	pContext = pState->papContexts[cid];
6571	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6572
6573	if (type == SVGA3D_SHADERTYPE_VS)
6574	{
6575	if ( shid < pContext->cVertexShaders
6576	&& pContext->paVertexShader[shid].id == shid)
6577	{
6578	pShader = &pContext->paVertexShader[shid];
6579	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6580	AssertRC(rc);
6581	}
6582	}
6583	else
6584	{
6585	Assert(type == SVGA3D_SHADERTYPE_PS);
6586	if ( shid < pContext->cPixelShaders
6587	&& pContext->paPixelShader[shid].id == shid)
6588	{
6589	pShader = &pContext->paPixelShader[shid];
6590	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6591	AssertRC(rc);
6592	}
6593	}
6594
6595	if (pShader)
6596	{
6597	if (pShader->pShaderProgram)
6598	RTMemFree(pShader->pShaderProgram);
6599	memset(pShader, 0, sizeof(*pShader));
6600	pShader->id = SVGA3D_INVALID_ID;
6601	}
6602	else
6603	AssertFailedReturn(VERR_INVALID_PARAMETER);
6604
6605	return VINF_SUCCESS;
6606	}
6607
6608	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6609	{
6610	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6611	AssertReturn(pState, VERR_NO_MEMORY);
6612	int rc;
6613
6614	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6615
6616	if ( !pContext
6617	&& cid < pState->cContexts
6618	&& pState->papContexts[cid]->id == cid)
6619	pContext = pState->papContexts[cid];
6620	else if (!pContext)
6621	{
6622	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6623	Log(("vmsvga3dShaderSet invalid context id!\n"));
6624	return VERR_INVALID_PARAMETER;
6625	}
6626	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6627
6628	if (type == SVGA3D_SHADERTYPE_VS)
6629	{
6630	/* Save for vm state save/restore. */
6631	pContext->state.shidVertex = shid;
6632	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6633
6634	if ( shid < pContext->cVertexShaders
6635	&& pContext->paVertexShader[shid].id == shid)
6636	{
6637	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6638	Assert(type == pShader->type);
6639
6640	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6641	AssertRCReturn(rc, rc);
6642	}
6643	else
6644	if (shid == SVGA_ID_INVALID)
6645	{
6646	/* Unselect shader. */
6647	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6648	AssertRCReturn(rc, rc);
6649	}
6650	else
6651	AssertFailedReturn(VERR_INVALID_PARAMETER);
6652	}
6653	else
6654	{
6655	/* Save for vm state save/restore. */
6656	pContext->state.shidPixel = shid;
6657	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6658
6659	Assert(type == SVGA3D_SHADERTYPE_PS);
6660	if ( shid < pContext->cPixelShaders
6661	&& pContext->paPixelShader[shid].id == shid)
6662	{
6663	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6664	Assert(type == pShader->type);
6665
6666	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6667	AssertRCReturn(rc, rc);
6668	}
6669	else
6670	if (shid == SVGA_ID_INVALID)
6671	{
6672	/* Unselect shader. */
6673	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6674	AssertRCReturn(rc, rc);
6675	}
6676	else
6677	AssertFailedReturn(VERR_INVALID_PARAMETER);
6678	}
6679
6680	return VINF_SUCCESS;
6681	}
6682
6683	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6684	{
6685	PVMSVGA3DCONTEXT pContext;
6686	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6687	AssertReturn(pState, VERR_NO_MEMORY);
6688	int rc;
6689
6690	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6691
6692	if ( cid >= pState->cContexts
6693	\|\| pState->papContexts[cid]->id != cid)
6694	{
6695	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6696	return VERR_INVALID_PARAMETER;
6697	}
6698	pContext = pState->papContexts[cid];
6699	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6700
6701	for (uint32_t i = 0; i < cRegisters; i++)
6702	{
6703	#ifdef LOG_ENABLED
6704	switch (ctype)
6705	{
6706	case SVGA3D_CONST_TYPE_FLOAT:
6707	{
6708	float pValuesF = (float )pValues;
6709	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)));
6710	break;
6711	}
6712
6713	case SVGA3D_CONST_TYPE_INT:
6714	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6715	break;
6716
6717	case SVGA3D_CONST_TYPE_BOOL:
6718	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6719	break;
6720	}
6721	#endif
6722	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6723	}
6724
6725	switch (type)
6726	{
6727	case SVGA3D_SHADERTYPE_VS:
6728	switch (ctype)
6729	{
6730	case SVGA3D_CONST_TYPE_FLOAT:
6731	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6732	break;
6733
6734	case SVGA3D_CONST_TYPE_INT:
6735	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6736	break;
6737
6738	case SVGA3D_CONST_TYPE_BOOL:
6739	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6740	break;
6741
6742	default:
6743	AssertFailedReturn(VERR_INVALID_PARAMETER);
6744	}
6745	AssertRCReturn(rc, rc);
6746	break;
6747
6748	case SVGA3D_SHADERTYPE_PS:
6749	switch (ctype)
6750	{
6751	case SVGA3D_CONST_TYPE_FLOAT:
6752	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6753	break;
6754
6755	case SVGA3D_CONST_TYPE_INT:
6756	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6757	break;
6758
6759	case SVGA3D_CONST_TYPE_BOOL:
6760	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6761	break;
6762
6763	default:
6764	AssertFailedReturn(VERR_INVALID_PARAMETER);
6765	}
6766	AssertRCReturn(rc, rc);
6767	break;
6768
6769	default:
6770	AssertFailedReturn(VERR_INVALID_PARAMETER);
6771	}
6772
6773	return VINF_SUCCESS;
6774	}
6775
6776
6777	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6778	{
6779	RT_NOREF(pThis, cid, type);
6780	AssertFailed();
6781	return VERR_NOT_IMPLEMENTED;
6782	}
6783
6784	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6785	{
6786	RT_NOREF(pThis, cid, type, guestResult);
6787	AssertFailed();
6788	return VERR_NOT_IMPLEMENTED;
6789	}
6790
6791	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6792	{
6793	RT_NOREF(pThis, cid, type, guestResult);
6794	AssertFailed();
6795	return VERR_NOT_IMPLEMENTED;
6796	}
6797

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 69304

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