DevVGA-SVGA3d-ogl.cpp@ 73194

Last change on this file since 73194 was 73194, checked in by vboxsync, 7 years ago
DevVGA-SVGA: added new parameters for vmsvgaGMRTransfer in order to reduce code duplication, adjusted callers accordingly
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 262.7 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 73194 2018-07-18 07:14:24Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.215389.xyz. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#define MANUAL_FLIP_SURFACE_DATA
91	/* Enable to render the result of DrawPrimitive in a seperate window. */
92	//#define DEBUG_GFX_WINDOW
93
94
95	/**
96	* Macro for doing something and then checking for errors during initialization.
97	* Uses AssertLogRelMsg.
98	*/
99	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
100	do \
101	{ \
102	a_Expr; \
103	GLenum iGlError = glGetError(); \
104	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
105	} while (0)
106
107	/**
108	* Macro for doing something and then checking for errors during initialization,
109	* doing the same in the other context when enabled.
110	*
111	* This will try both profiles in dual profile builds. Caller must be in the
112	* default context.
113	*
114	* Uses AssertLogRelMsg to indicate trouble.
115	*/
116	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
117	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
118	do \
119	{ \
120	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
121	a_Expr; \
122	GLenum iGlError = glGetError(); \
123	if (iGlError != GL_NO_ERROR) \
124	{ \
125	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError2 = glGetError(); \
129	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
130	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
131	} \
132	} while (0)
133	#else
134	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
135	#endif
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	/* Define the default light parameters as specified by MSDN. */
142	/** @todo move out; fetched from Wine */
143	const SVGA3dLightData vmsvga3d_default_light =
144	{
145	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
146	false, /* inWorldSpace */
147	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
149	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
150	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
151	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
152	0.0f, /* range */
153	0.0f, /* falloff */
154	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
155	0.0f, /* theta */
156	0.0f /* phi */
157	};
158
159
160	/*********************************************************************************************************************************
161	* Internal Functions *
162	*********************************************************************************************************************************/
163	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
164	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
165
166	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
167	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
168
169
170	/**
171	* Checks if the given OpenGL extension is supported.
172	*
173	* @returns true if supported, false if not.
174	* @param pState The VMSVGA3d state.
175	* @param rsMinGLVersion The OpenGL version that introduced this feature
176	* into the core.
177	* @param pszWantedExtension The name of the OpenGL extension we want padded
178	* with one space at each end.
179	* @remarks Init time only.
180	*/
181	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
182	{
183	RT_NOREF(rsMinGLVersion);
184	/* check padding. */
185	Assert(pszWantedExtension[0] == ' ');
186	Assert(pszWantedExtension[1] != ' ');
187	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
188
189	/* Look it up. */
190	bool fRet = false;
191	if (strstr(pState->pszExtensions, pszWantedExtension))
192	fRet = true;
193
194	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( rsMinGLVersion == 0.0
197	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
205	#endif
206	return fRet;
207	}
208
209
210	/**
211	* Outputs GL_EXTENSIONS list to the release log.
212	*/
213	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
214	{
215	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
216	bool fBuffered = RTLogRelSetBuffering(true);
217
218	/*
219	* Determin the column widths first.
220	*/
221	size_t acchWidths[4] = { 1, 1, 1, 1 };
222	uint32_t i;
223	const char *psz = pszExtensions;
224	for (i = 0; ; i++)
225	{
226	while (*psz == ' ')
227	psz++;
228	if (!*psz)
229	break;
230
231	const char *pszEnd = strchr(psz, ' ');
232	AssertBreak(pszEnd);
233	size_t cch = pszEnd - psz;
234
235	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
236	if (acchWidths[iColumn] < cch)
237	acchWidths[iColumn] = cch;
238
239	psz = pszEnd;
240	}
241
242	/*
243	* Output it.
244	*/
245	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
246	psz = pszExtensions;
247	for (i = 0; ; i++)
248	{
249	while (*psz == ' ')
250	psz++;
251	if (!*psz)
252	break;
253
254	const char *pszEnd = strchr(psz, ' ');
255	AssertBreak(pszEnd);
256	size_t cch = pszEnd - psz;
257
258	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
259	if (iColumn == 0)
260	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
261	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
262	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
263	else
264	LogRel((" %.*s", cch, psz));
265
266	psz = pszEnd;
267	}
268
269	RTLogRelSetBuffering(fBuffered);
270	LogRel(("\n"));
271	}
272
273	/**
274	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
275	* @a ppszExtensions.
276	*
277	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
278	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
279	* @param fGLProfileVersion The OpenGL profile version.
280	*/
281	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
282	{
283	int rc;
284	*ppszExtensions = NULL;
285
286	/*
287	* Try the old glGetString interface first.
288	*/
289	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
290	if (pszExtensions)
291	{
292	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
293	AssertLogRelRCReturn(rc, rc);
294	}
295	else
296	{
297	/*
298	* The new interface where each extension string is retrieved separately.
299	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
300	* the above GL_EXTENSIONS error lingers on darwin. sucks.
301	*/
302	#ifndef GL_NUM_EXTENSIONS
303	# define GL_NUM_EXTENSIONS 0x821D
304	#endif
305	GLint cExtensions = 1024;
306	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
307	Assert(cExtensions != 1024);
308
309	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
310	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
311
312	rc = RTStrAAppend(ppszExtensions, " ");
313	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
314	{
315	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
316	if (pszExt)
317	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
318	}
319	AssertRCReturn(rc, rc);
320	}
321
322	#if 1
323	/*
324	* Add extensions promoted into the core OpenGL profile.
325	*/
326	static const struct
327	{
328	float fGLVersion;
329	const char *pszzExtensions;
330	} s_aPromotedExtensions[] =
331	{
332	{
333	1.1f,
334	" GL_EXT_vertex_array \0"
335	" GL_EXT_polygon_offset \0"
336	" GL_EXT_blend_logic_op \0"
337	" GL_EXT_texture \0"
338	" GL_EXT_copy_texture \0"
339	" GL_EXT_subtexture \0"
340	" GL_EXT_texture_object \0"
341	" GL_ARB_framebuffer_object \0"
342	" GL_ARB_map_buffer_range \0"
343	" GL_ARB_vertex_array_object \0"
344	"\0"
345	},
346	{
347	1.2f,
348	" EXT_texture3D \0"
349	" EXT_bgra \0"
350	" EXT_packed_pixels \0"
351	" EXT_rescale_normal \0"
352	" EXT_separate_specular_color \0"
353	" SGIS_texture_edge_clamp \0"
354	" SGIS_texture_lod \0"
355	" EXT_draw_range_elements \0"
356	"\0"
357	},
358	{
359	1.3f,
360	" GL_ARB_texture_compression \0"
361	" GL_ARB_texture_cube_map \0"
362	" GL_ARB_multisample \0"
363	" GL_ARB_multitexture \0"
364	" GL_ARB_texture_env_add \0"
365	" GL_ARB_texture_env_combine \0"
366	" GL_ARB_texture_env_dot3 \0"
367	" GL_ARB_texture_border_clamp \0"
368	" GL_ARB_transpose_matrix \0"
369	"\0"
370	},
371	{
372	1.5f,
373	" GL_SGIS_generate_mipmap \0"
374	/" GL_NV_blend_equare \0"/
375	" GL_ARB_depth_texture \0"
376	" GL_ARB_shadow \0"
377	" GL_EXT_fog_coord \0"
378	" GL_EXT_multi_draw_arrays \0"
379	" GL_ARB_point_parameters \0"
380	" GL_EXT_secondary_color \0"
381	" GL_EXT_blend_func_separate \0"
382	" GL_EXT_stencil_wrap \0"
383	" GL_ARB_texture_env_crossbar \0"
384	" GL_EXT_texture_lod_bias \0"
385	" GL_ARB_texture_mirrored_repeat \0"
386	" GL_ARB_window_pos \0"
387	"\0"
388	},
389	{
390	1.6f,
391	" GL_ARB_vertex_buffer_object \0"
392	" GL_ARB_occlusion_query \0"
393	" GL_EXT_shadow_funcs \0"
394	},
395	{
396	2.0f,
397	" GL_ARB_shader_objects \0" /??/
398	" GL_ARB_vertex_shader \0" /??/
399	" GL_ARB_fragment_shader \0" /??/
400	" GL_ARB_shading_language_100 \0" /??/
401	" GL_ARB_draw_buffers \0"
402	" GL_ARB_texture_non_power_of_two \0"
403	" GL_ARB_point_sprite \0"
404	" GL_ATI_separate_stencil \0"
405	" GL_EXT_stencil_two_side \0"
406	"\0"
407	},
408	{
409	2.1f,
410	" GL_ARB_pixel_buffer_object \0"
411	" GL_EXT_texture_sRGB \0"
412	"\0"
413	},
414	{
415	3.0f,
416	" GL_ARB_framebuffer_object \0"
417	" GL_ARB_map_buffer_range \0"
418	" GL_ARB_vertex_array_object \0"
419	"\0"
420	},
421	{
422	3.1f,
423	" GL_ARB_copy_buffer \0"
424	" GL_ARB_uniform_buffer_object \0"
425	"\0"
426	},
427	{
428	3.2f,
429	" GL_ARB_vertex_array_bgra \0"
430	" GL_ARB_draw_elements_base_vertex \0"
431	" GL_ARB_fragment_coord_conventions \0"
432	" GL_ARB_provoking_vertex \0"
433	" GL_ARB_seamless_cube_map \0"
434	" GL_ARB_texture_multisample \0"
435	" GL_ARB_depth_clamp \0"
436	" GL_ARB_sync \0"
437	" GL_ARB_geometry_shader4 \0" /??/
438	"\0"
439	},
440	{
441	3.3f,
442	" GL_ARB_blend_func_extended \0"
443	" GL_ARB_sampler_objects \0"
444	" GL_ARB_explicit_attrib_location \0"
445	" GL_ARB_occlusion_query2 \0"
446	" GL_ARB_shader_bit_encoding \0"
447	" GL_ARB_texture_rgb10_a2ui \0"
448	" GL_ARB_texture_swizzle \0"
449	" GL_ARB_timer_query \0"
450	" GL_ARB_vertex_type_2_10_10_10_rev \0"
451	"\0"
452	},
453	{
454	4.0f,
455	" GL_ARB_texture_query_lod \0"
456	" GL_ARB_draw_indirect \0"
457	" GL_ARB_gpu_shader5 \0"
458	" GL_ARB_gpu_shader_fp64 \0"
459	" GL_ARB_shader_subroutine \0"
460	" GL_ARB_tessellation_shader \0"
461	" GL_ARB_texture_buffer_object_rgb32 \0"
462	" GL_ARB_texture_cube_map_array \0"
463	" GL_ARB_texture_gather \0"
464	" GL_ARB_transform_feedback2 \0"
465	" GL_ARB_transform_feedback3 \0"
466	"\0"
467	},
468	{
469	4.1f,
470	" GL_ARB_ES2_compatibility \0"
471	" GL_ARB_get_program_binary \0"
472	" GL_ARB_separate_shader_objects \0"
473	" GL_ARB_shader_precision \0"
474	" GL_ARB_vertex_attrib_64bit \0"
475	" GL_ARB_viewport_array \0"
476	"\0"
477	}
478	};
479
480	uint32_t cPromoted = 0;
481	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
482	{
483	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
484	while (*pszExt)
485	{
486	# ifdef VBOX_STRICT
487	size_t cchExt = strlen(pszExt);
488	Assert(cchExt > 3);
489	Assert(pszExt[0] == ' ');
490	Assert(pszExt[1] != ' ');
491	Assert(pszExt[cchExt - 2] != ' ');
492	Assert(pszExt[cchExt - 1] == ' ');
493	# endif
494
495	if (strstr(*ppszExtensions, pszExt) == NULL)
496	{
497	if (cPromoted++ == 0)
498	{
499	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
500	AssertRCReturn(rc, rc);
501	}
502
503	rc = RTStrAAppend(ppszExtensions, pszExt);
504	AssertRCReturn(rc, rc);
505	}
506
507	pszExt = strchr(pszExt, '\0') + 1;
508	}
509	}
510	#endif
511
512	return VINF_SUCCESS;
513	}
514
515	/**
516	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
517	*/
518	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
519	{
520	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
521	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
523	#else
524	NOREF(pThis);
525	NOREF(fOtherProfile);
526	#endif
527	}
528
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
532	*/
533	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
534	char *pszBuf, size_t cbBuf, bool fOtherProfile)
535	{
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
538	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
539	while (*pszCur == ' ')
540	pszCur++;
541	if (!*pszCur)
542	return false;
543
544	const char *pszEnd = strchr(pszCur, ' ');
545	AssertReturn(pszEnd, false);
546	size_t cch = pszEnd - pszCur;
547	if (cch < cbBuf)
548	{
549	memcpy(pszBuf, pszCur, cch);
550	pszBuf[cch] = '\0';
551	}
552	else if (cbBuf > 0)
553	{
554	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
555	pszBuf[cbBuf - 1] = '\0';
556	}
557
558	ppvEnumCtx = (void )pszEnd;
559	return true;
560	}
561
562
563	/**
564	* Initializes the VMSVGA3D state during VGA device construction.
565	*
566	* Failure are generally not fatal, 3D support will just be disabled.
567	*
568	* @returns VBox status code.
569	* @param pThis The VGA device state where svga.p3dState will be modified.
570	*/
571	int vmsvga3dInit(PVGASTATE pThis)
572	{
573	AssertCompile(GL_TRUE == 1);
574	AssertCompile(GL_FALSE == 0);
575
576	/*
577	* Load and resolve imports from the external shared libraries.
578	*/
579	RTERRINFOSTATIC ErrInfo;
580	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
581	if (RT_FAILURE(rc))
582	{
583	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
584	return rc;
585	}
586	#ifdef RT_OS_DARWIN
587	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
588	if (RT_FAILURE(rc))
589	{
590	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
591	return rc;
592	}
593	#endif
594
595	/*
596	* Allocate the state.
597	*/
598	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
599	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
600
601	#ifdef RT_OS_WINDOWS
602	/* Create event semaphore and async IO thread. */
603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
604	rc = RTSemEventCreate(&pState->WndRequestSem);
605	if (RT_SUCCESS(rc))
606	{
607	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
608	"VMSVGA3DWND");
609	if (RT_SUCCESS(rc))
610	return VINF_SUCCESS;
611
612	/* bail out. */
613	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
614	RTSemEventDestroy(pState->WndRequestSem);
615	}
616	else
617	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
618	RTMemFree(pThis->svga.p3dState);
619	pThis->svga.p3dState = NULL;
620	return rc;
621	#else
622	return VINF_SUCCESS;
623	#endif
624	}
625
626	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
627	int vmsvga3dPowerOn(PVGASTATE pThis)
628	{
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
631	PVMSVGA3DCONTEXT pContext;
632	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
633	PVMSVGA3DCONTEXT pOtherCtx;
634	#endif
635	int rc;
636
637	if (pState->rsGLVersion != 0.0)
638	return VINF_SUCCESS; /* already initialized (load state) */
639
640	/*
641	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
642	*/
643	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
644	AssertRCReturn(rc, rc);
645
646	pContext = pState->papContexts[1];
647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
648
649	LogRel(("VMSVGA3d: OpenGL version: %s\n"
650	"VMSVGA3d: OpenGL Vendor: %s\n"
651	"VMSVGA3d: OpenGL Renderer: %s\n"
652	"VMSVGA3d: OpenGL shader language version: %s\n",
653	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
654	glGetString(GL_SHADING_LANGUAGE_VERSION)));
655
656	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
657	AssertRCReturn(rc, rc);
658	vmsvga3dLogRelExtensions("", pState->pszExtensions);
659
660	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
661
662
663	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
664	/*
665	* Get the extension list for the alternative profile so we can better
666	* figure out the shader model and stuff.
667	*/
668	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
669	AssertLogRelRCReturn(rc, rc);
670	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
671
672	pOtherCtx = pState->papContexts[2];
673	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
674
675	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
676	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
677	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
678	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
679	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
680	glGetString(GL_SHADING_LANGUAGE_VERSION)));
681
682	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
683	AssertRCReturn(rc, rc);
684	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
685
686	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
687
688	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
689	#else
690	pState->pszOtherExtensions = (char *)"";
691	pState->rsOtherGLVersion = pState->rsGLVersion;
692	#endif
693
694
695	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
696	{
697	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
698	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
699	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
700	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
701	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
702	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
703	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
704	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
705	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
706	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
707	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
708	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
709	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
710	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
711	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
712	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
713	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
714	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
715	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
716	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
717	}
718	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
719	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
720	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
721	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
722	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
723	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
724	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
725	#endif
726	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
727	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
729	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
731	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
733	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
735	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
737	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
739	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
741	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
743	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
745	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
749	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
751	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
753	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
754	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
755	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
756	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
757	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
758	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
759	#endif
760	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
761	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
762
763	/* OpenGL 3.2 core */
764	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
765	{
766	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
767	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
768	}
769	else
770	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
771
772	/* OpenGL 3.2 core */
773	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
774	{
775	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
776	}
777	else
778	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
779
780	/* Extension support */
781	#if defined(RT_OS_DARWIN)
782	/** @todo OpenGL version history suggest this, verify... */
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
784	#else
785	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
786	#endif
787
788	#define GLGETPROC(ProcType, ProcName) do { \
789	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
790	AssertMsgReturn(pState->ext.ProcName, (#ProcName " missing"), VERR_NOT_IMPLEMENTED); \
791	} while(0)
792	#define GLGETPROCOPT(ProcType, ProcName) do { \
793	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
794	AssertMsg(pState->ext.ProcName, (#ProcName " missing (optional)")); \
795	} while(0)
796
797	GLGETPROCOPT(PFNGLGENQUERIESPROC , glGenQueries);
798	GLGETPROCOPT(PFNGLDELETEQUERIESPROC , glDeleteQueries);
799	GLGETPROCOPT(PFNGLBEGINQUERYPROC , glBeginQuery);
800	GLGETPROCOPT(PFNGLENDQUERYPROC , glEndQuery);
801	GLGETPROCOPT(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv);
802
803	#undef GLGETPROCOPT
804	#undef GLGETPROC
805	/*
806	* Initialize the capabilities with sensible defaults.
807	*/
808	pState->caps.maxActiveLights = 1;
809	pState->caps.maxTextureBufferSize = 65536;
810	pState->caps.maxTextures = 1;
811	pState->caps.maxClipDistances = 4;
812	pState->caps.maxColorAttachments = 1;
813	pState->caps.maxRectangleTextureSize = 2048;
814	pState->caps.maxTextureAnisotropy = 2;
815	pState->caps.maxVertexShaderInstructions = 1024;
816	pState->caps.maxFragmentShaderInstructions = 1024;
817	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
818	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
819	pState->caps.flPointSize[0] = 1;
820	pState->caps.flPointSize[1] = 1;
821
822	/*
823	* Query capabilities
824	*/
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
827	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
828	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
829	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
830	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
831	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
832	#else
833	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
834	#endif
835	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
836	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
837	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
838	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
839
840	if (pState->ext.glGetProgramivARB)
841	{
842	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
843	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
844	&pState->caps.maxFragmentShaderTemps));
845	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
846	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
847	&pState->caps.maxFragmentShaderInstructions));
848	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
849	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
850	&pState->caps.maxVertexShaderTemps));
851	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
852	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
853	&pState->caps.maxVertexShaderInstructions));
854	}
855	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
856
857	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
858	* ARB Assembly Language
859	* These are done through testing the presence of extensions. You should test them in this order:
860	* GL_NV_gpu_program4: SM 4.0 or better.
861	* GL_NV_vertex_program3: SM 3.0 or better.
862	* GL_ARB_fragment_program: SM 2.0 or better.
863	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
864	*
865	*/
866	/** @todo distinguish between vertex and pixel shaders??? */
867	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
868	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
869	if (v >= 3.30f)
870	{
871	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
872	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
873	}
874	else
875	if (v >= 1.20f)
876	{
877	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
878	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
879	}
880	else
881	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
882	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
883	{
884	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
885	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
886	}
887	else
888	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
889	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
890	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
891	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
892	)
893	{
894	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
895	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
896	}
897	else
898	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
899	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
900	{
901	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
902	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
903	}
904	else
905	{
906	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
907	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
908	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
909	}
910
911	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
912	{
913	/** @todo Intel drivers don't support this extension! */
914	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
915	}
916	#if 0
917	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
918	SVGA3D_DEVCAP_QUERY_TYPES = 15,
919	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
920	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
921	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
922	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
923	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
924	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
925	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
926	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
927	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
928	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
929	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
930	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
931	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
932	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
933	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
934	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
935	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
936	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
937	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
938	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
939	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
940	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
941	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
942	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
943	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
944	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
945	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
946	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
947	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
948	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
949	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
950	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
951	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
952	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
953	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
954	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
955	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
956	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
957	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
958	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
959	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
960	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
961	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
962	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
963	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
964	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
965	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
966	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
967	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
968	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
969	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
970	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
971	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
972	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
973	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
974	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
975	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
976	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
977	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
978	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
979	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
980	#endif
981
982	LogRel(("VMSVGA3d: Capabilities:\n"));
983	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
984	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
985	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
986	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
987	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
988	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
989	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
990	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
991	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
992	pState->caps.maxFragmentShaderTemps,
993	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
994	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
995	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
996	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
997
998
999	/* Initialize the shader library. */
1000	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1001	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1002	rc = ShaderInitLib(&pState->ShaderIf);
1003	AssertRC(rc);
1004
1005	/* Cleanup */
1006	rc = vmsvga3dContextDestroy(pThis, 1);
1007	AssertRC(rc);
1008	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1009	rc = vmsvga3dContextDestroy(pThis, 2);
1010	AssertRC(rc);
1011	#endif
1012
1013	if ( pState->rsGLVersion < 3.0
1014	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1015	{
1016	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1017	return VERR_NOT_IMPLEMENTED;
1018	}
1019	if ( !pState->ext.glIsRenderbuffer
1020	\|\| !pState->ext.glBindRenderbuffer
1021	\|\| !pState->ext.glDeleteRenderbuffers
1022	\|\| !pState->ext.glGenRenderbuffers
1023	\|\| !pState->ext.glRenderbufferStorage
1024	\|\| !pState->ext.glGetRenderbufferParameteriv
1025	\|\| !pState->ext.glIsFramebuffer
1026	\|\| !pState->ext.glBindFramebuffer
1027	\|\| !pState->ext.glDeleteFramebuffers
1028	\|\| !pState->ext.glGenFramebuffers
1029	\|\| !pState->ext.glCheckFramebufferStatus
1030	\|\| !pState->ext.glFramebufferTexture1D
1031	\|\| !pState->ext.glFramebufferTexture2D
1032	\|\| !pState->ext.glFramebufferTexture3D
1033	\|\| !pState->ext.glFramebufferRenderbuffer
1034	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1035	\|\| !pState->ext.glGenerateMipmap
1036	\|\| !pState->ext.glBlitFramebuffer
1037	\|\| !pState->ext.glRenderbufferStorageMultisample
1038	\|\| !pState->ext.glFramebufferTextureLayer)
1039	{
1040	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1041	return VERR_NOT_IMPLEMENTED;
1042	}
1043
1044	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1045	pState->idTestContext = SVGA_ID_INVALID;
1046	#endif
1047	return VINF_SUCCESS;
1048	}
1049
1050	int vmsvga3dReset(PVGASTATE pThis)
1051	{
1052	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1053	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1054
1055	/* Destroy all leftover surfaces. */
1056	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1057	{
1058	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1059	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1060	}
1061
1062	/* Destroy all leftover contexts. */
1063	for (uint32_t i = 0; i < pState->cContexts; i++)
1064	{
1065	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1066	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1067	}
1068
1069	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1070	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1071
1072	return VINF_SUCCESS;
1073	}
1074
1075	int vmsvga3dTerminate(PVGASTATE pThis)
1076	{
1077	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1078	AssertReturn(pState, VERR_WRONG_ORDER);
1079	int rc;
1080
1081	rc = vmsvga3dReset(pThis);
1082	AssertRCReturn(rc, rc);
1083
1084	/* Terminate the shader library. */
1085	rc = ShaderDestroyLib();
1086	AssertRC(rc);
1087
1088	#ifdef RT_OS_WINDOWS
1089	/* Terminate the window creation thread. */
1090	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1091	AssertRCReturn(rc, rc);
1092
1093	RTSemEventDestroy(pState->WndRequestSem);
1094	#elif defined(RT_OS_DARWIN)
1095
1096	#elif defined(RT_OS_LINUX)
1097	/* signal to the thread that it is supposed to exit */
1098	pState->bTerminate = true;
1099	/* wait for it to terminate */
1100	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1101	AssertRC(rc);
1102	XCloseDisplay(pState->display);
1103	#endif
1104
1105	RTStrFree(pState->pszExtensions);
1106	pState->pszExtensions = NULL;
1107	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1108	RTStrFree(pState->pszOtherExtensions);
1109	#endif
1110	pState->pszOtherExtensions = NULL;
1111
1112	return VINF_SUCCESS;
1113	}
1114
1115
1116	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1117	{
1118	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1119	* redraw it. */
1120
1121	#ifdef RT_OS_DARWIN
1122	RT_NOREF(pOldViewport);
1123	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1124	if ( pState
1125	&& idScreen == 0
1126	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1127	{
1128	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1129	}
1130	#else
1131	RT_NOREF(pThis, idScreen, pOldViewport);
1132	#endif
1133	}
1134
1135
1136	/**
1137	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1138	* given surface format capability.
1139	*
1140	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1141	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1142	*
1143	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1144	* of implicit guest expectations:
1145	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1146	*/
1147	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1148	{
1149	uint32_t result = 0;
1150
1151	/** @todo missing:
1152	*
1153	* SVGA3DFORMAT_OP_PIXELSIZE
1154	*/
1155
1156	switch (idx3dCaps)
1157	{
1158	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1159	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1160	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1161	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1162	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1163	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1164	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1165	break;
1166
1167	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1168	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1169	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1170	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1171	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1172	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1173	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1174	break;
1175	}
1176
1177	/** @todo check hardware caps! */
1178	switch (idx3dCaps)
1179	{
1180	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1181	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1182	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1183	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1184	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1185	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1186	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1187	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1188	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1189	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1190	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1191	result \|= SVGA3DFORMAT_OP_TEXTURE
1192	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1193	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1194	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1195	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1196	\| SVGA3DFORMAT_OP_CUBETEXTURE
1197	\| SVGA3DFORMAT_OP_SRGBREAD
1198	\| SVGA3DFORMAT_OP_SRGBWRITE;
1199	break;
1200
1201	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1202	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1203	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1204	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1205	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1206	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1207	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1208	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1209	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1210	break;
1211
1212	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1213	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1214	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1215	result \|= SVGA3DFORMAT_OP_TEXTURE
1216	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1217	\| SVGA3DFORMAT_OP_CUBETEXTURE
1218	\| SVGA3DFORMAT_OP_SRGBREAD;
1219	break;
1220
1221	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1222	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1223	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1224	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1225	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1226	break;
1227
1228	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1229	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1230	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1231	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1232	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1233	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1234	break;
1235
1236	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1237	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1238	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1239
1240	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1241	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1242	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1243	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1244	break;
1245	}
1246	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1247
1248	return result;
1249	}
1250
1251	#if 0 /* unused */
1252	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1253	{
1254	RT_NOREF(pState3D, idx3dCaps);
1255
1256	/** @todo test this somehow */
1257	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1258
1259	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1260	return result;
1261	}
1262	#endif
1263
1264
1265	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1266	{
1267	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1268	AssertReturn(pState, VERR_NO_MEMORY);
1269	int rc = VINF_SUCCESS;
1270
1271	*pu32Val = 0;
1272
1273	/*
1274	* The capabilities access by current (2015-03-01) linux sources (gallium,
1275	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1276	* aren't access.
1277	*/
1278
1279	switch (idx3dCaps)
1280	{
1281	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1282	case SVGA3D_DEVCAP_3D:
1283	pu32Val = 1; / boolean? */
1284	break;
1285
1286	case SVGA3D_DEVCAP_MAX_LIGHTS:
1287	*pu32Val = pState->caps.maxActiveLights;
1288	break;
1289
1290	case SVGA3D_DEVCAP_MAX_TEXTURES:
1291	*pu32Val = pState->caps.maxTextures;
1292	break;
1293
1294	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1295	*pu32Val = pState->caps.maxClipDistances;
1296	break;
1297
1298	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1299	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1300	*pu32Val = pState->caps.vertexShaderVersion;
1301	break;
1302
1303	case SVGA3D_DEVCAP_VERTEX_SHADER:
1304	/* boolean? */
1305	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1306	break;
1307
1308	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1309	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1310	*pu32Val = pState->caps.fragmentShaderVersion;
1311	break;
1312
1313	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1314	/* boolean? */
1315	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1316	break;
1317
1318	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1319	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1320	/* Must be obsolete by now; surface format caps specify the same thing. */
1321	rc = VERR_INVALID_PARAMETER;
1322	break;
1323
1324	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1325	break;
1326
1327	/*
1328	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1329	* return TRUE. Even on physical hardware that does not support
1330	* these formats natively, the SVGA3D device will provide an emulation
1331	* which should be invisible to the guest OS.
1332	*/
1333	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1334	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1335	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1336	*pu32Val = 1;
1337	break;
1338
1339	case SVGA3D_DEVCAP_QUERY_TYPES:
1340	break;
1341
1342	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1343	break;
1344
1345	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1346	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1347	AssertCompile(sizeof(uint32_t) == sizeof(float));
1348	(float )pu32Val = pState->caps.flPointSize[1];
1349	break;
1350
1351	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1352	/** @todo ?? */
1353	rc = VERR_INVALID_PARAMETER;
1354	break;
1355
1356	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1357	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1358	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1359	*pu32Val = pState->caps.maxRectangleTextureSize;
1360	break;
1361
1362	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1363	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1364	//*pu32Val = pCaps->MaxVolumeExtent;
1365	*pu32Val = 256;
1366	break;
1367
1368	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1369	pu32Val = 32768; / hardcoded in Wine */
1370	break;
1371
1372	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1373	//*pu32Val = pCaps->MaxTextureAspectRatio;
1374	break;
1375
1376	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1377	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1378	*pu32Val = pState->caps.maxTextureAnisotropy;
1379	break;
1380
1381	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1382	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1383	pu32Val = 0xFFFFF; / hardcoded in Wine */
1384	break;
1385
1386	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1387	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1388	*pu32Val = pState->caps.maxVertexShaderInstructions;
1389	break;
1390
1391	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1392	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1393	break;
1394
1395	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1396	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1397	*pu32Val = pState->caps.maxVertexShaderTemps;
1398	break;
1399
1400	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1401	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1402	*pu32Val = pState->caps.maxFragmentShaderTemps;
1403	break;
1404
1405	case SVGA3D_DEVCAP_TEXTURE_OPS:
1406	break;
1407
1408	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1409	break;
1410
1411	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1412	break;
1413
1414	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1415	break;
1416
1417	case SVGA3D_DEVCAP_SUPERSAMPLE:
1418	break;
1419
1420	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1421	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1422	break;
1423
1424	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1425	break;
1426
1427	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1428	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1429	*pu32Val = pState->caps.maxColorAttachments;
1430	break;
1431
1432	/*
1433	* This is the maximum number of SVGA context IDs that the guest
1434	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1435	*/
1436	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1437	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1438	break;
1439
1440	/*
1441	* This is the maximum number of SVGA surface IDs that the guest
1442	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1443	*/
1444	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1445	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1446	break;
1447
1448	#if 0 /* Appeared more recently, not yet implemented. */
1449	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1450	case SVGA3D_DEVCAP_LINE_AA:
1451	break;
1452	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1453	case SVGA3D_DEVCAP_LINE_STIPPLE:
1454	break;
1455	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1456	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1457	break;
1458	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1459	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1460	break;
1461	#endif
1462
1463	/*
1464	* Supported surface formats.
1465	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1466	*/
1467	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1469	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1470	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1471	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1472	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1473	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1474	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1475	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1476	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1477	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1478	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1479	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1480	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1481	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1482	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1483	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1484	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1485	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1486	break;
1487
1488	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1489	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1490	pu32Val = 0; / apparently not supported in OpenGL */
1491	break;
1492
1493	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1494	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1495	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1496	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1497	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1498	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1499	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1500	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1501	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1502	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1503	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1504	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1505	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1506	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1507	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1508	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1509	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1510	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1511	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1512	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1513	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1514	break;
1515
1516	/* Linux: Not referenced in current sources. */
1517	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1518	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1519	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1520	rc = VERR_INVALID_PARAMETER;
1521	*pu32Val = 0;
1522	break;
1523
1524	default:
1525	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1526	rc = VERR_INVALID_PARAMETER;
1527	break;
1528	}
1529
1530	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1531	return rc;
1532	}
1533
1534	/**
1535	* Convert SVGA format value to its OpenGL equivalent
1536	*
1537	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1538	* help from wined3dformat_from_d3dformat().
1539	*/
1540	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1541	{
1542	switch (format)
1543	{
1544	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1545	pSurface->internalFormatGL = GL_RGB8;
1546	pSurface->formatGL = GL_BGRA;
1547	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1548	break;
1549	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1550	pSurface->internalFormatGL = GL_RGBA8;
1551	pSurface->formatGL = GL_BGRA;
1552	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1553	break;
1554	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1555	pSurface->internalFormatGL = GL_RGB5;
1556	pSurface->formatGL = GL_RGB;
1557	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1558	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1559	break;
1560	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1561	pSurface->internalFormatGL = GL_RGB5;
1562	pSurface->formatGL = GL_BGRA;
1563	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1564	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1565	break;
1566	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1567	pSurface->internalFormatGL = GL_RGB5_A1;
1568	pSurface->formatGL = GL_BGRA;
1569	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1570	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1571	break;
1572	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1573	pSurface->internalFormatGL = GL_RGBA4;
1574	pSurface->formatGL = GL_BGRA;
1575	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1576	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1577	break;
1578
1579	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1580	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1581	pSurface->formatGL = GL_DEPTH_COMPONENT;
1582	pSurface->typeGL = GL_UNSIGNED_INT;
1583	break;
1584	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1585	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1586	pSurface->formatGL = GL_DEPTH_COMPONENT;
1587	pSurface->typeGL = GL_UNSIGNED_SHORT;
1588	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1589	break;
1590	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1591	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1592	pSurface->formatGL = GL_DEPTH_STENCIL;
1593	pSurface->typeGL = GL_UNSIGNED_INT;
1594	break;
1595	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1596	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1597	pSurface->formatGL = GL_DEPTH_STENCIL;
1598	pSurface->typeGL = GL_UNSIGNED_SHORT;
1599	/** @todo Wine sources hints at no hw support for this, so test this one! */
1600	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1601	break;
1602	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1603	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1604	pSurface->formatGL = GL_DEPTH_COMPONENT;
1605	pSurface->typeGL = GL_UNSIGNED_INT;
1606	break;
1607
1608	/* Advanced D3D9 depth formats. */
1609	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1610	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1611	pSurface->formatGL = GL_DEPTH_COMPONENT;
1612	pSurface->typeGL = GL_FLOAT;
1613	break;
1614
1615	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1616	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1617	pSurface->formatGL = GL_DEPTH_COMPONENT;
1618	pSurface->typeGL = GL_FLOAT; /* ??? */
1619	break;
1620
1621	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1622	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1623	pSurface->formatGL = GL_DEPTH_STENCIL;
1624	pSurface->typeGL = GL_INT; /* ??? */
1625	break;
1626
1627	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1628	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1629	#if 0
1630	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1631	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1632	#else /* wine suggests: */
1633	pSurface->formatGL = GL_RGBA;
1634	pSurface->typeGL = GL_UNSIGNED_BYTE;
1635	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1636	#endif
1637	break;
1638
1639	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1640	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1641	#if 0 /** @todo this needs testing... */
1642	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1643	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1644	#else /* wine suggests: */
1645	pSurface->formatGL = GL_RGBA;
1646	pSurface->typeGL = GL_UNSIGNED_BYTE;
1647	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1648	#endif
1649	break;
1650
1651	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1652	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1653	#if 0 /** @todo this needs testing... */
1654	pSurface->formatGL = GL_RGBA_S3TC;
1655	pSurface->typeGL = GL_UNSIGNED_INT;
1656	#else /* wine suggests: */
1657	pSurface->formatGL = GL_RGBA;
1658	pSurface->typeGL = GL_UNSIGNED_BYTE;
1659	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1660	#endif
1661	break;
1662
1663	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1664	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1665	pSurface->formatGL = GL_LUMINANCE;
1666	pSurface->typeGL = GL_UNSIGNED_BYTE;
1667	break;
1668
1669	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1670	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1671	pSurface->formatGL = GL_LUMINANCE;
1672	pSurface->typeGL = GL_UNSIGNED_SHORT;
1673	break;
1674
1675	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1676	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1677	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1678	pSurface->typeGL = GL_UNSIGNED_BYTE;
1679	break;
1680
1681	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1682	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1683	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1684	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1685	break;
1686
1687	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1688	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1689	pSurface->formatGL = GL_ALPHA;
1690	pSurface->typeGL = GL_UNSIGNED_BYTE;
1691	break;
1692
1693	#if 0
1694
1695	/* Bump-map formats */
1696	case SVGA3D_BUMPU8V8:
1697	return D3DFMT_V8U8;
1698	case SVGA3D_BUMPL6V5U5:
1699	return D3DFMT_L6V5U5;
1700	case SVGA3D_BUMPX8L8V8U8:
1701	return D3DFMT_X8L8V8U8;
1702	case SVGA3D_BUMPL8V8U8:
1703	/* No corresponding D3D9 equivalent. */
1704	AssertFailedReturn(D3DFMT_UNKNOWN);
1705	/* signed bump-map formats */
1706	case SVGA3D_V8U8:
1707	return D3DFMT_V8U8;
1708	case SVGA3D_Q8W8V8U8:
1709	return D3DFMT_Q8W8V8U8;
1710	case SVGA3D_CxV8U8:
1711	return D3DFMT_CxV8U8;
1712	/* mixed bump-map formats */
1713	case SVGA3D_X8L8V8U8:
1714	return D3DFMT_X8L8V8U8;
1715	case SVGA3D_A2W10V10U10:
1716	return D3DFMT_A2W10V10U10;
1717	#endif
1718
1719	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1720	pSurface->internalFormatGL = GL_RGBA16F;
1721	pSurface->formatGL = GL_RGBA;
1722	#if 0 /* bird: wine uses half float, sounds correct to me... */
1723	pSurface->typeGL = GL_FLOAT;
1724	#else
1725	pSurface->typeGL = GL_HALF_FLOAT;
1726	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1727	#endif
1728	break;
1729
1730	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1731	pSurface->internalFormatGL = GL_RGBA32F;
1732	pSurface->formatGL = GL_RGBA;
1733	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1734	break;
1735
1736	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1737	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1738	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1739	pSurface->formatGL = GL_RGBA;
1740	#else
1741	pSurface->formatGL = GL_BGRA;
1742	#endif
1743	pSurface->typeGL = GL_UNSIGNED_INT;
1744	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1745	break;
1746
1747
1748	/* Single- and dual-component floating point formats */
1749	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1750	pSurface->internalFormatGL = GL_R16F;
1751	pSurface->formatGL = GL_RED;
1752	#if 0 /* bird: wine uses half float, sounds correct to me... */
1753	pSurface->typeGL = GL_FLOAT;
1754	#else
1755	pSurface->typeGL = GL_HALF_FLOAT;
1756	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1757	#endif
1758	break;
1759	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1760	pSurface->internalFormatGL = GL_R32F;
1761	pSurface->formatGL = GL_RG;
1762	pSurface->typeGL = GL_FLOAT;
1763	break;
1764	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1765	pSurface->internalFormatGL = GL_RG16F;
1766	pSurface->formatGL = GL_RG;
1767	#if 0 /* bird: wine uses half float, sounds correct to me... */
1768	pSurface->typeGL = GL_FLOAT;
1769	#else
1770	pSurface->typeGL = GL_HALF_FLOAT;
1771	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1772	#endif
1773	break;
1774	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1775	pSurface->internalFormatGL = GL_RG32F;
1776	pSurface->formatGL = GL_RG;
1777	pSurface->typeGL = GL_FLOAT;
1778	break;
1779
1780	/*
1781	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1782	* the most efficient format to use when creating new surfaces
1783	* expressly for index or vertex data.
1784	*/
1785	case SVGA3D_BUFFER:
1786	pSurface->internalFormatGL = -1;
1787	pSurface->formatGL = -1;
1788	pSurface->typeGL = -1;
1789	break;
1790
1791	#if 0
1792	return D3DFMT_UNKNOWN;
1793
1794	case SVGA3D_V16U16:
1795	return D3DFMT_V16U16;
1796	#endif
1797
1798	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1799	pSurface->internalFormatGL = GL_RG16;
1800	pSurface->formatGL = GL_RG;
1801	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1802	pSurface->typeGL = GL_UNSIGNED_INT;
1803	#else
1804	pSurface->typeGL = GL_UNSIGNED_SHORT;
1805	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1806	#endif
1807	break;
1808
1809	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1810	pSurface->internalFormatGL = GL_RGBA16;
1811	pSurface->formatGL = GL_RGBA;
1812	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1813	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1814	#else
1815	pSurface->typeGL = GL_UNSIGNED_SHORT;
1816	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1817	#endif
1818	break;
1819
1820	#if 0
1821	/* Packed Video formats */
1822	case SVGA3D_UYVY:
1823	return D3DFMT_UYVY;
1824	case SVGA3D_YUY2:
1825	return D3DFMT_YUY2;
1826
1827	/* Planar video formats */
1828	case SVGA3D_NV12:
1829	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1830
1831	/* Video format with alpha */
1832	case SVGA3D_AYUV:
1833	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1834
1835	case SVGA3D_BC4_UNORM:
1836	case SVGA3D_BC5_UNORM:
1837	/* Unknown; only in DX10 & 11 */
1838	break;
1839	#endif
1840	default:
1841	AssertMsgFailed(("Unsupported format %d\n", format));
1842	break;
1843	}
1844	}
1845
1846
1847	#if 0
1848	/**
1849	* Convert SVGA multi sample count value to its D3D equivalent
1850	*/
1851	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1852	{
1853	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1854	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1855
1856	if (multisampleCount > 16)
1857	return D3DMULTISAMPLE_NONE;
1858
1859	/** @todo exact same mapping as d3d? */
1860	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1861	}
1862	#endif
1863
1864	/**
1865	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1866	*
1867	* @param pState The VMSVGA3d state.
1868	* @param pSurface The surface being destroyed.
1869	*/
1870	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1871	{
1872	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1873	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1874
1875	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1876	{
1877	case SVGA3D_SURFACE_CUBEMAP:
1878	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1879	break;
1880
1881	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1882	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1883	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1884	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1885	{
1886	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1887	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1888	}
1889	break;
1890
1891	case SVGA3D_SURFACE_HINT_TEXTURE:
1892	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1893	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1894	{
1895	glDeleteTextures(1, &pSurface->oglId.texture);
1896	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1897	}
1898	break;
1899
1900	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1901	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1902	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1903	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1904	{
1905	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1906	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1907	}
1908	break;
1909
1910	default:
1911	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1912	break;
1913	}
1914	}
1915
1916
1917	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1918	{
1919	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1920	uint32_t sidSrc = src.sid;
1921	uint32_t sidDest = dest.sid;
1922	int rc = VINF_SUCCESS;
1923
1924	AssertReturn(pState, VERR_NO_MEMORY);
1925	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1926	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1927	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1928	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1929
1930	for (uint32_t i = 0; i < cCopyBoxes; i++)
1931	{
1932	SVGA3dBox destBox, srcBox;
1933
1934	srcBox.x = pBox[i].srcx;
1935	srcBox.y = pBox[i].srcy;
1936	srcBox.z = pBox[i].srcz;
1937	srcBox.w = pBox[i].w;
1938	srcBox.h = pBox[i].h;
1939	srcBox.d = pBox[i].d;
1940
1941	destBox.x = pBox[i].x;
1942	destBox.y = pBox[i].y;
1943	destBox.z = pBox[i].z;
1944	destBox.w = pBox[i].w;
1945	destBox.h = pBox[i].h;
1946	destBox.d = pBox[i].d;
1947
1948	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1949	AssertRCReturn(rc, rc);
1950	}
1951	return VINF_SUCCESS;
1952	}
1953
1954
1955	/**
1956	* Save texture unpacking parameters and loads those appropriate for the given
1957	* surface.
1958	*
1959	* @param pState The VMSVGA3D state structure.
1960	* @param pContext The active context.
1961	* @param pSurface The surface.
1962	* @param pSave Where to save stuff.
1963	*/
1964	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1965	PVMSVGAPACKPARAMS pSave)
1966	{
1967	RT_NOREF(pState);
1968
1969	/*
1970	* Save (ignore errors, setting the defaults we want and avoids restore).
1971	*/
1972	pSave->iAlignment = 1;
1973	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1974	pSave->cxRow = 0;
1975	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1976
1977	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1978	pSave->cyImage = 0;
1979	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1980	Assert(pSave->cyImage == 0);
1981
1982	pSave->fSwapBytes = GL_FALSE;
1983	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1984	Assert(pSave->fSwapBytes == GL_FALSE);
1985
1986	pSave->fLsbFirst = GL_FALSE;
1987	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1988	Assert(pSave->fLsbFirst == GL_FALSE);
1989
1990	pSave->cSkipRows = 0;
1991	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1992	Assert(pSave->cSkipRows == 0);
1993
1994	pSave->cSkipPixels = 0;
1995	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1996	Assert(pSave->cSkipPixels == 0);
1997
1998	pSave->cSkipImages = 0;
1999	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2000	Assert(pSave->cSkipImages == 0);
2001
2002	VMSVGA3D_CLEAR_GL_ERRORS();
2003	#endif
2004
2005	/*
2006	* Setup unpack.
2007	*
2008	* Note! We use 1 as alignment here because we currently don't do any
2009	* aligning of line pitches anywhere.
2010	*/
2011	NOREF(pSurface);
2012	if (pSave->iAlignment != 1)
2013	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2014	if (pSave->cxRow != 0)
2015	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2016	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2017	if (pSave->cyImage != 0)
2018	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2019	if (pSave->fSwapBytes != 0)
2020	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2021	if (pSave->fLsbFirst != 0)
2022	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2023	if (pSave->cSkipRows != 0)
2024	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2025	if (pSave->cSkipPixels != 0)
2026	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2027	if (pSave->cSkipImages != 0)
2028	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2029	#endif
2030	}
2031
2032
2033	/**
2034	* Restores texture unpacking parameters.
2035	*
2036	* @param pState The VMSVGA3D state structure.
2037	* @param pContext The active context.
2038	* @param pSurface The surface.
2039	* @param pSave Where stuff was saved.
2040	*/
2041	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2042	PCVMSVGAPACKPARAMS pSave)
2043	{
2044	RT_NOREF(pState, pSurface);
2045
2046	if (pSave->iAlignment != 1)
2047	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2048	if (pSave->cxRow != 0)
2049	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2050	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2051	if (pSave->cyImage != 0)
2052	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2053	if (pSave->fSwapBytes != 0)
2054	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2055	if (pSave->fLsbFirst != 0)
2056	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2057	if (pSave->cSkipRows != 0)
2058	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2059	if (pSave->cSkipPixels != 0)
2060	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2061	if (pSave->cSkipImages != 0)
2062	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2063	#endif
2064	}
2065
2066
2067	/**
2068	* Create D3D/OpenGL texture object for the specified surface.
2069	*
2070	* Surfaces are created when needed.
2071	*
2072	* @param pState The VMSVGA3d state.
2073	* @param pContext The context.
2074	* @param idAssociatedContext Probably the same as pContext->id.
2075	* @param pSurface The surface to create the texture for.
2076	*/
2077	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2078	PVMSVGA3DSURFACE pSurface)
2079	{
2080	RT_NOREF(idAssociatedContext);
2081	GLint activeTexture = 0;
2082	uint32_t idPrevCtx = pState->idActiveContext;
2083	pContext = &pState->SharedCtx;
2084	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2085
2086	glGenTextures(1, &pSurface->oglId.texture);
2087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2088	/** @todo Set the mip map generation filter settings. */
2089
2090	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2092
2093	/* Must bind texture to the current context in order to change it. */
2094	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2095	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2096
2097	/* Set the unpacking parameters. */
2098	VMSVGAPACKPARAMS SavedParams;
2099	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2100
2101	/* Set the mipmap base and max level paramters. */
2102	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2104	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2105	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2106
2107	if (pSurface->fDirty)
2108	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2109
2110	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2111	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2112	{
2113	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2114	exposing random host memory to the guest and helps a with the fedora 21 surface
2115	corruption issues (launchpad, background, search field, login). */
2116	if (pSurface->pMipmapLevels[i].fDirty)
2117	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2118
2119	glTexImage2D(GL_TEXTURE_2D,
2120	i,
2121	pSurface->internalFormatGL,
2122	pSurface->pMipmapLevels[i].mipmapSize.width,
2123	pSurface->pMipmapLevels[i].mipmapSize.height,
2124	0,
2125	pSurface->formatGL,
2126	pSurface->typeGL,
2127	pSurface->pMipmapLevels[i].pSurfaceData);
2128
2129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2130
2131	pSurface->pMipmapLevels[i].fDirty = false;
2132	}
2133	pSurface->fDirty = false;
2134
2135	/* Restore unpacking parameters. */
2136	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2137
2138	/* Restore the old active texture. */
2139	glBindTexture(GL_TEXTURE_2D, activeTexture);
2140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2141
2142	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2143
2144	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2145	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2146	return VINF_SUCCESS;
2147	}
2148
2149
2150	/**
2151	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2152	*
2153	* @returns VBox status code.
2154	* @param pThis The VGA device instance.
2155	* @param pState The VMSVGA3d state.
2156	* @param pDstSurface The destination host surface.
2157	* @param uDstFace The destination face (valid).
2158	* @param uDstMipmap The destination mipmap level (valid).
2159	* @param pDstBox The destination box.
2160	* @param pSrcSurface The source host surface.
2161	* @param uSrcFace The destination face (valid).
2162	* @param uSrcMipmap The source mimap level (valid).
2163	* @param pSrcBox The source box.
2164	* @param enmMode The strecht blt mode .
2165	* @param pContext The VMSVGA3d context (already current for OGL).
2166	*/
2167	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2168	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2169	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2170	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2171	{
2172	RT_NOREF(pThis);
2173	RT_NOREF2(uDstFace, uSrcFace); /// @todo
2174
2175	/* Activate the read and draw framebuffer objects. */
2176	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2177	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2178	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2180
2181	/* Bind the source and destination objects to the right place. */
2182	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2183	pSrcSurface->oglId.texture, uSrcMipmap);
2184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2185	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2186	pDstSurface->oglId.texture, uDstMipmap);
2187	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2188
2189	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),
2190	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2191	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2192
2193	pState->ext.glBlitFramebuffer(pSrcBox->x,
2194	#ifdef MANUAL_FLIP_SURFACE_DATA
2195	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2196	#else
2197	pSrcBox->y,
2198	#endif
2199	pSrcBox->x + pSrcBox->w, /* exclusive. */
2200	#ifdef MANUAL_FLIP_SURFACE_DATA
2201	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2202	#else
2203	pSrcBox->y + pSrcBox->h,
2204	#endif
2205	pDstBox->x,
2206	#ifdef MANUAL_FLIP_SURFACE_DATA
2207	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2208	#else
2209	pDstBox->y,
2210	#endif
2211	pDstBox->x + pDstBox->w, /* exclusive. */
2212	#ifdef MANUAL_FLIP_SURFACE_DATA
2213	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2214	#else
2215	pDstBox->y + pDstBox->h,
2216	#endif
2217	GL_COLOR_BUFFER_BIT,
2218	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2219	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2220
2221	/* Reset the frame buffer association */
2222	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2223	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2224
2225	return VINF_SUCCESS;
2226	}
2227
2228	/**
2229	* Save texture packing parameters and loads those appropriate for the given
2230	* surface.
2231	*
2232	* @param pState The VMSVGA3D state structure.
2233	* @param pContext The active context.
2234	* @param pSurface The surface.
2235	* @param pSave Where to save stuff.
2236	*/
2237	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2238	PVMSVGAPACKPARAMS pSave)
2239	{
2240	RT_NOREF(pState);
2241	/*
2242	* Save (ignore errors, setting the defaults we want and avoids restore).
2243	*/
2244	pSave->iAlignment = 1;
2245	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2246	pSave->cxRow = 0;
2247	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2248
2249	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2250	pSave->cyImage = 0;
2251	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2252	Assert(pSave->cyImage == 0);
2253
2254	pSave->fSwapBytes = GL_FALSE;
2255	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2256	Assert(pSave->fSwapBytes == GL_FALSE);
2257
2258	pSave->fLsbFirst = GL_FALSE;
2259	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2260	Assert(pSave->fLsbFirst == GL_FALSE);
2261
2262	pSave->cSkipRows = 0;
2263	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2264	Assert(pSave->cSkipRows == 0);
2265
2266	pSave->cSkipPixels = 0;
2267	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2268	Assert(pSave->cSkipPixels == 0);
2269
2270	pSave->cSkipImages = 0;
2271	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2272	Assert(pSave->cSkipImages == 0);
2273
2274	VMSVGA3D_CLEAR_GL_ERRORS();
2275	#endif
2276
2277	/*
2278	* Setup unpack.
2279	*
2280	* Note! We use 1 as alignment here because we currently don't do any
2281	* aligning of line pitches anywhere.
2282	*/
2283	NOREF(pSurface);
2284	if (pSave->iAlignment != 1)
2285	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2286	if (pSave->cxRow != 0)
2287	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2288	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2289	if (pSave->cyImage != 0)
2290	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2291	if (pSave->fSwapBytes != 0)
2292	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2293	if (pSave->fLsbFirst != 0)
2294	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2295	if (pSave->cSkipRows != 0)
2296	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2297	if (pSave->cSkipPixels != 0)
2298	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2299	if (pSave->cSkipImages != 0)
2300	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2301	#endif
2302	}
2303
2304
2305	/**
2306	* Restores texture packing parameters.
2307	*
2308	* @param pState The VMSVGA3D state structure.
2309	* @param pContext The active context.
2310	* @param pSurface The surface.
2311	* @param pSave Where stuff was saved.
2312	*/
2313	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2314	PCVMSVGAPACKPARAMS pSave)
2315	{
2316	RT_NOREF(pState, pSurface);
2317	if (pSave->iAlignment != 1)
2318	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2319	if (pSave->cxRow != 0)
2320	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2321	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2322	if (pSave->cyImage != 0)
2323	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2324	if (pSave->fSwapBytes != 0)
2325	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2326	if (pSave->fLsbFirst != 0)
2327	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2328	if (pSave->cSkipRows != 0)
2329	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2330	if (pSave->cSkipPixels != 0)
2331	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2332	if (pSave->cSkipImages != 0)
2333	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2334	#endif
2335	}
2336
2337
2338	/**
2339	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2340	*
2341	* @returns Failure status code or @a rc.
2342	* @param pThis The VGA device instance data.
2343	* @param pState The VMSVGA3d state.
2344	* @param pSurface The host surface.
2345	* @param pMipLevel Mipmap level. The caller knows it already.
2346	* @param uHostFace The host face (valid).
2347	* @param uHostMipmap The host mipmap level (valid).
2348	* @param GuestPtr The guest pointer.
2349	* @param cbGuestPitch The guest pitch.
2350	* @param transfer The transfer direction.
2351	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2352	* @param pContext The context (for OpenGL).
2353	* @param rc The current rc for all boxes.
2354	* @param iBox The current box number (for Direct 3D).
2355	*/
2356	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2357	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2358	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2359	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2360	{
2361	RT_NOREF(iBox);
2362	RT_NOREF(uHostFace); /// @todo
2363
2364	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2365	{
2366	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2367	case SVGA3D_SURFACE_HINT_TEXTURE:
2368	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2369	{
2370	uint32_t cbSurfacePitch;
2371	uint8_t *pDoubleBuffer;
2372	uint32_t offHst;
2373
2374	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2375	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2376
2377	if (transfer == SVGA3D_READ_HOST_VRAM)
2378	{
2379	GLint activeTexture;
2380
2381	/* Must bind texture to the current context in order to read it. */
2382	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2383	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2384
2385	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2386	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2387
2388	/* Set row length and alignment of the input data. */
2389	VMSVGAPACKPARAMS SavedParams;
2390	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2391
2392	glGetTexImage(GL_TEXTURE_2D,
2393	uHostMipmap,
2394	pSurface->formatGL,
2395	pSurface->typeGL,
2396	pDoubleBuffer);
2397	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2398
2399	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2400
2401	/* Restore the old active texture. */
2402	glBindTexture(GL_TEXTURE_2D, activeTexture);
2403	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2404
2405	offHst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2406	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2407
2408	#ifdef MANUAL_FLIP_SURFACE_DATA
2409	pBufferStart = pDoubleBuffer
2410	+ pBox->x * pSurface->cbBlock
2411	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2412	- cbSurfacePitch; /* flip image during copy */
2413	#else
2414	#endif
2415	}
2416	else
2417	{
2418	/* The buffer will contain only the copied rectangle. */
2419	offHst = 0;
2420	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2421	#ifdef MANUAL_FLIP_SURFACE_DATA
2422	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2423	#else
2424	#endif
2425	}
2426
2427	uint32_t const offGst = pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch; /// @todo compressed fmts
2428
2429	rc = vmsvgaGMRTransfer(pThis,
2430	transfer,
2431	pDoubleBuffer,
2432	pMipLevel->cbSurface,
2433	offHst,
2434	#ifdef MANUAL_FLIP_SURFACE_DATA
2435	-(int32_t)cbSurfacePitch,
2436	#else
2437	cbSurfacePitch,
2438	#endif
2439	GuestPtr,
2440	offGst,
2441	cbGuestPitch,
2442	pBox->w * pSurface->cbBlock,
2443	pBox->h);
2444	AssertRC(rc);
2445
2446	/* Update the opengl surface data. */
2447	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2448	{
2449	GLint activeTexture = 0;
2450
2451	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2452	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2453
2454	/* Must bind texture to the current context in order to change it. */
2455	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2456	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2457
2458	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2459
2460	/* Set row length and alignment of the input data. */
2461	VMSVGAPACKPARAMS SavedParams;
2462	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2463
2464	glTexSubImage2D(GL_TEXTURE_2D,
2465	uHostMipmap,
2466	pBox->x,
2467	pBox->y,
2468	pBox->w,
2469	pBox->h,
2470	pSurface->formatGL,
2471	pSurface->typeGL,
2472	pDoubleBuffer);
2473
2474	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2475
2476	/* Restore old values. */
2477	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2478
2479	/* Restore the old active texture. */
2480	glBindTexture(GL_TEXTURE_2D, activeTexture);
2481	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2482	}
2483
2484	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2485
2486	/* Free the double buffer. */
2487	RTMemFree(pDoubleBuffer);
2488	break;
2489	}
2490
2491	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2492	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2493	break;
2494
2495	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2496	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2497	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2498	{
2499	/* Caller already clipped pBox and buffers are 1-dimensional. */
2500	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2501
2502	VMSVGA3D_CLEAR_GL_ERRORS();
2503	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2504	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2505	{
2506	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2507	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2508	if (RT_LIKELY(pbData != NULL))
2509	{
2510	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2511	GLint cbStrictBufSize;
2512	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2513	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2514	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2515	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2516	#endif
2517	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2518	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2519	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2520	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2521
2522	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2523
2524	rc = vmsvgaGMRTransfer(pThis,
2525	transfer,
2526	pbData,
2527	pMipLevel->cbSurface,
2528	offHst,
2529	pMipLevel->cbSurfacePitch,
2530	GuestPtr,
2531	pBox->srcx * pSurface->cbBlock,
2532	cbGuestPitch,
2533	pBox->w * pSurface->cbBlock,
2534	pBox->h);
2535	AssertRC(rc);
2536
2537	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2538
2539	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2541	}
2542	else
2543	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2544	}
2545	else
2546	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2547	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2548	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2549	break;
2550	}
2551
2552	default:
2553	AssertFailed();
2554	break;
2555	}
2556
2557	return rc;
2558	}
2559
2560
2561	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2562	{
2563	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2564	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));
2565	for (uint32_t i = 0; i < cRects; i++)
2566	{
2567	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2568	}
2569
2570	/** @todo Only screen 0 for now. */
2571	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2572	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2573	/** @todo scaling */
2574	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2575
2576	if (cRects == 0)
2577	{
2578	/* easy case; no clipping */
2579	SVGA3dCopyBox box;
2580	SVGA3dGuestImage dst;
2581
2582	box.x = destRect.left;
2583	box.y = destRect.top;
2584	box.z = 0;
2585	box.w = destRect.right - destRect.left;
2586	box.h = destRect.bottom - destRect.top;
2587	box.d = 1;
2588	box.srcx = srcRect.left;
2589	box.srcy = srcRect.top;
2590	box.srcz = 0;
2591
2592	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2593	dst.ptr.offset = pThis->svga.uScreenOffset;
2594	dst.pitch = pThis->svga.cbScanline;
2595
2596	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2597	AssertRCReturn(rc, rc);
2598
2599	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2600	return VINF_SUCCESS;
2601	}
2602	else
2603	{
2604	SVGA3dGuestImage dst;
2605	SVGA3dCopyBox box;
2606
2607	box.srcz = 0;
2608	box.z = 0;
2609	box.d = 1;
2610
2611	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2612	dst.ptr.offset = pThis->svga.uScreenOffset;
2613	dst.pitch = pThis->svga.cbScanline;
2614
2615	/** @todo merge into one SurfaceDMA call */
2616	for (uint32_t i = 0; i < cRects; i++)
2617	{
2618	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2619	box.srcx = srcRect.left + pRect[i].left;
2620	box.srcy = srcRect.top + pRect[i].top;
2621
2622	box.x = pRect[i].left + destRect.left;
2623	box.y = pRect[i].top + destRect.top;
2624	box.z = 0;
2625	box.w = pRect[i].right - pRect[i].left;
2626	box.h = pRect[i].bottom - pRect[i].top;
2627
2628	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2629	AssertRCReturn(rc, rc);
2630
2631	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2632	}
2633
2634	return VINF_SUCCESS;
2635	}
2636	}
2637
2638	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2639	{
2640	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2641	PVMSVGA3DSURFACE pSurface;
2642	int rc = VINF_SUCCESS;
2643	PVMSVGA3DCONTEXT pContext;
2644	uint32_t cid;
2645	GLint activeTexture = 0;
2646
2647	AssertReturn(pState, VERR_NO_MEMORY);
2648	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2649	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2650
2651	pSurface = pState->papSurfaces[sid];
2652
2653	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2654	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2655	pSurface->autogenFilter = filter;
2656
2657	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2658
2659	cid = SVGA3D_INVALID_ID;
2660	pContext = &pState->SharedCtx;
2661	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2662
2663	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2664	{
2665	/* Unknown surface type; turn it into a texture. */
2666	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2667	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2668	AssertRCReturn(rc, rc);
2669	}
2670	else
2671	{
2672	/** @todo new filter */
2673	AssertFailed();
2674	}
2675
2676	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2677	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2678
2679	/* Must bind texture to the current context in order to change it. */
2680	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2681	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2682
2683	/* Generate the mip maps. */
2684	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2685	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2686
2687	/* Restore the old texture. */
2688	glBindTexture(GL_TEXTURE_2D, activeTexture);
2689	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2690
2691	return VINF_SUCCESS;
2692	}
2693
2694	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2695	{
2696	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2697	PVMSVGA3DSURFACE pSurface;
2698	PVMSVGA3DCONTEXT pContext;
2699	uint32_t cid;
2700
2701	AssertReturn(pState, VERR_NO_MEMORY);
2702	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2703	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2704
2705	pSurface = pState->papSurfaces[sid];
2706
2707	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2708	for (uint32_t i=0; i < cRects; i++)
2709	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));
2710
2711	pContext = &pState->SharedCtx;
2712	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2713	cid = pContext->id;
2714	VMSVGA3D_CLEAR_GL_ERRORS();
2715
2716	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2717	/*
2718	* Source surface different size?
2719	*/
2720	RTRECT2 srcViewPort;
2721	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2722	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2723	{
2724	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2725	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2726
2727	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2728	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2729	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2730	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2731
2732	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2733	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2734	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2735	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2736	}
2737	else
2738	{
2739	srcViewPort.x = pThis->svga.viewport.x;
2740	srcViewPort.y = pThis->svga.viewport.y;
2741	srcViewPort.cx = pThis->svga.viewport.cx;
2742	srcViewPort.cy = pThis->svga.viewport.cy;
2743	}
2744	RTRECT SrcViewPortRect;
2745	SrcViewPortRect.xLeft = srcViewPort.x;
2746	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2747	SrcViewPortRect.yBottom = srcViewPort.y;
2748	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2749	#endif
2750
2751
2752	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2753	/*
2754	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2755	*/
2756	SVGA3dCopyRect rect;
2757	uint32_t oldVShader, oldPShader;
2758	GLint oldTextureId;
2759
2760	if (cRects == 0)
2761	{
2762	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2763	rect.w = pSurface->pMipmapLevels[0].size.width;
2764	rect.h = pSurface->pMipmapLevels[0].size.height;
2765	pRect = &rect;
2766	cRects = 1;
2767	}
2768
2769	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2770
2771	#if 0
2772	glDisable(GL_CULL_FACE);
2773	glDisable(GL_BLEND);
2774	glDisable(GL_ALPHA_TEST);
2775	glDisable(GL_SCISSOR_TEST);
2776	glDisable(GL_STENCIL_TEST);
2777	glEnable(GL_DEPTH_TEST);
2778	glDepthFunc(GL_ALWAYS);
2779	glDepthMask(GL_TRUE);
2780	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2781	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2782	#endif
2783
2784	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2785
2786	oldVShader = pContext->state.shidVertex;
2787	oldPShader = pContext->state.shidPixel;
2788	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2789	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2790
2791	/* Flush shader changes. */
2792	if (pContext->pShaderContext)
2793	ShaderUpdateState(pContext->pShaderContext, 0);
2794
2795	/* Activate the read and draw framebuffer objects. */
2796	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2797	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2798
2799	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2800	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2801	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2802
2803	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2804	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2805
2806	#if 0
2807	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2808	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2809	#endif
2810
2811	/* Reset the transformation matrices. */
2812	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2813	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2814	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2815	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2816	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2817	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2818	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2819	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2820
2821	for (uint32_t i = 0; i < cRects; i++)
2822	{
2823	float left, right, top, bottom; /* Texture coordinates */
2824	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2825
2826	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2827	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2828	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2829	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2830	pRect[i].w = pThis->svga.viewport.cx;
2831	pRect[i].h = pThis->svga.viewport.cy;
2832
2833	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2834	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2835	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2836	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2837	{
2838	/* Intersection is empty; skip */
2839	continue;
2840	}
2841
2842	left = pRect[i].srcx;
2843	right = pRect[i].srcx + pRect[i].w;
2844	top = pRect[i].srcy + pRect[i].h;
2845	bottom = pRect[i].srcy;
2846
2847	left /= pSurface->pMipmapLevels[0].size.width;
2848	right /= pSurface->pMipmapLevels[0].size.width;
2849	top /= pSurface->pMipmapLevels[0].size.height;
2850	bottom /= pSurface->pMipmapLevels[0].size.height;
2851
2852	vertexLeft = pRect[i].x;
2853	vertexRight = pRect[i].x + pRect[i].w;
2854	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2855	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2856
2857	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2858	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2859	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)));
2860
2861	glBegin(GL_QUADS);
2862
2863	/* bottom left */
2864	glTexCoord2f(left, bottom);
2865	glVertex2i(vertexLeft, vertexBottom);
2866
2867	/* top left */
2868	glTexCoord2f(left, top);
2869	glVertex2i(vertexLeft, vertexTop);
2870
2871	/* top right */
2872	glTexCoord2f(right, top);
2873	glVertex2i(vertexRight, vertexTop);
2874
2875	/* bottom right */
2876	glTexCoord2f(right, bottom);
2877	glVertex2i(vertexRight, vertexBottom);
2878
2879	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2880	}
2881
2882	/* Restore old settings. */
2883	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2884	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2885	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2886	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2887
2888	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2889
2890	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2891	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2892	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2893
2894	#else
2895	/*
2896	* glBlitFramebuffer variant.
2897	*/
2898	/* Activate the read and draw framebuffer objects. */
2899	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2900	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2901	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2902	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2903
2904	/* Bind the source objects to the right place. */
2905	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2906	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2907
2908
2909	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2910	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2911	ASMCompilerBarrier(); /* paranoia */
2912	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2913
2914	/* If there are no recangles specified, just grab a screenful. */
2915	SVGA3dCopyRect DummyRect;
2916	if (cRects != 0)
2917	{ /* likely */ }
2918	else
2919	{
2920	/** @todo Find the usecase for this or check what the original device does.
2921	* The original code was doing some scaling based on the surface
2922	* size... */
2923	# ifdef DEBUG_bird
2924	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2925	# endif
2926	DummyRect.x = DummyRect.srcx = 0;
2927	DummyRect.y = DummyRect.srcy = 0;
2928	DummyRect.w = pThis->svga.uWidth;
2929	DummyRect.h = pThis->svga.uHeight;
2930	cRects = 1;
2931	pRect = &DummyRect;
2932	}
2933
2934	/*
2935	* Blit the surface rectangle(s) to the back buffer.
2936	*/
2937	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
2938	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
2939	for (uint32_t i = 0; i < cRects; i++)
2940	{
2941	SVGA3dCopyRect ClippedRect = pRect[i];
2942
2943	/*
2944	* Do some sanity checking and limit width and height, all so we
2945	* don't need to think about wrap-arounds below.
2946	*/
2947	if (RT_LIKELY( ClippedRect.w
2948	&& ClippedRect.x < VMSVGA_MAX_X
2949	&& ClippedRect.srcx < VMSVGA_MAX_X
2950	&& ClippedRect.h
2951	&& ClippedRect.y < VMSVGA_MAX_Y
2952	&& ClippedRect.srcy < VMSVGA_MAX_Y
2953	))
2954	{ /* likely */ }
2955	else
2956	continue;
2957
2958	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
2959	{ /* likely */ }
2960	else
2961	ClippedRect.w = VMSVGA_MAX_X;
2962	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
2963	{ /* likely */ }
2964	else
2965	ClippedRect.h = VMSVGA_MAX_Y;
2966
2967
2968	/*
2969	* Source surface clipping (paranoia). Straight forward.
2970	*/
2971	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2972	{ /* likely */ }
2973	else
2974	continue;
2975	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2976	{ /* likely */ }
2977	else
2978	{
2979	AssertFailed(); /* remove if annoying. */
2980	ClippedRect.w = cxSurface - ClippedRect.srcx;
2981	}
2982
2983	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2984	{ /* likely */ }
2985	else
2986	continue;
2987	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2988	{ /* likely */ }
2989	else
2990	{
2991	AssertFailed(); /* remove if annoying. */
2992	ClippedRect.h = cySurface - ClippedRect.srcy;
2993	}
2994
2995	/*
2996	* Destination viewport clipping - real PITA.
2997	*
2998	* We have to take the following into account here:
2999	* - The source image is Y inverted.
3000	* - The destination framebuffer is in world and not window coordinates,
3001	* just like the source surface. This means working in the first quadrant.
3002	* - The viewport is in window coordinate, that is fourth quadrant and
3003	* negated Y values.
3004	* - The destination framebuffer is not scrolled, so we have to blit
3005	* what's visible into the top of the framebuffer.
3006	*
3007	*
3008	* To illustrate:
3009	*
3010	* source destination 0123456789
3011	* 8 ^---------- 8 ^---------- 0 ----------->
3012	* 7 \| \| 7 \| \| 1 \| \|
3013	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
3014	* 5 \| *** \| 5 \| * \| 3 \| * \|
3015	* 4 \| * \| => 4 \| * \| => 4 \| * \|
3016	* 3 \| * \| 3 \| * \| 5 \| * \|
3017	* 2 \| ******* \| 2 \| \| 6 \| \|
3018	* 1 \| \| 1 \| \| 7 \| \|
3019	* 0 -----------> 0 -----------> 8 v----------
3020	* 0123456789 0123456789 Destination window
3021	*
3022	* From the above, it follows that a destination viewport given in
3023	* window coordinates matches the source exactly when srcy = srcx = 0.
3024	*
3025	* Example (Y only):
3026	* ySrc = 0
3027	* yDst = 0
3028	* cyCopy = 9
3029	* cyScreen = cyCopy
3030	* cySurface >= cyCopy
3031	* yViewport = 5
3032	* cyViewport = 2 (i.e. '\| *** \|'
3033	* '\| \|' )
3034	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3035	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3036	*
3037	* We can see from the illustration that the final result should be:
3038	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3039	* DstRect = (0,2) (11, 4)
3040	*
3041	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3042	* easier to follow:
3043	* SrcRect = (0,5) (11, 7)
3044	*
3045	* From the top, Y values only:
3046	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3047	*
3048	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3049	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3050	* Copy.yDst += cyAdjust = 2;
3051	* Copy.ySrc = unchanged;
3052	* Copy.cx -= cyAdjust = 7;
3053	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3054	*
3055	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3056	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3057	* Copy.yDst = unchanged;
3058	* Copy.ySrc += cyAdjust = 5;
3059	* Copy.cx -= cyAdjust = 2;
3060	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3061	*
3062	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3063	* when the view is resized, moved and otherwise messed with,
3064	* the visible part of the framebuffer is actually the bottom
3065	* one. It's easy to adjust for this, just have to adjust the
3066	* destination rectangle such that yBottom is zero.
3067	*/
3068	/* X - no inversion, so kind of simple. */
3069	if (ClippedRect.x >= DstViewport.x)
3070	{
3071	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3072	{ /* typical */ }
3073	else if (ClippedRect.x < DstViewport.xRight)
3074	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3075	else
3076	continue;
3077	}
3078	else
3079	{
3080	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3081	if (cxAdjust < ClippedRect.w)
3082	{
3083	ClippedRect.w -= cxAdjust;
3084	ClippedRect.x += cxAdjust;
3085	ClippedRect.srcx += cxAdjust;
3086	}
3087	else
3088	continue;
3089
3090	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3091	{ /* typical */ }
3092	else
3093	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3094	}
3095
3096	/* Y - complicated, see above. */
3097	if (ClippedRect.y >= DstViewport.yLowWC)
3098	{
3099	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3100	{ /* typical */ }
3101	else if (ClippedRect.y < DstViewport.yHighWC)
3102	{
3103	/* adjustment #2 */
3104	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3105	ClippedRect.srcy += cyAdjust;
3106	ClippedRect.h -= cyAdjust;
3107	}
3108	else
3109	continue;
3110	}
3111	else
3112	{
3113	/* adjustment #1 */
3114	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3115	if (cyAdjust < ClippedRect.h)
3116	{
3117	ClippedRect.y += cyAdjust;
3118	ClippedRect.h -= cyAdjust;
3119	}
3120	else
3121	continue;
3122
3123	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3124	{ /* typical */ }
3125	else
3126	{
3127	/* adjustment #2 */
3128	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3129	ClippedRect.srcy += cyAdjust;
3130	ClippedRect.h -= cyAdjust;
3131	}
3132	}
3133
3134	/* Calc source rectangle with y flipping wrt destination. */
3135	RTRECT SrcRect;
3136	SrcRect.xLeft = ClippedRect.srcx;
3137	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3138	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3139	SrcRect.yTop = ClippedRect.srcy;
3140
3141	/* Calc destination rectangle. */
3142	RTRECT DstRect;
3143	DstRect.xLeft = ClippedRect.x;
3144	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3145	DstRect.yBottom = ClippedRect.y;
3146	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3147
3148	/* Adjust for viewport. */
3149	DstRect.xLeft -= DstViewport.x;
3150	DstRect.xRight -= DstViewport.x;
3151	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3152	DstRect.yTop -= DstRect.yBottom;
3153	DstRect.yBottom = 0;
3154	# else
3155	DstRect.yBottom += DstViewport.y;
3156	DstRect.yTop += DstViewport.y;
3157	# endif
3158
3159	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3160	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3161	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3162	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3163	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3164	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3165	}
3166
3167	#endif
3168
3169	/*
3170	* Flip the front and back buffers.
3171	*/
3172	#ifdef RT_OS_WINDOWS
3173	BOOL fRef = SwapBuffers(pContext->hdc);
3174	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3175	#elif defined(RT_OS_DARWIN)
3176	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3177	#else
3178	/* show the window if not already done */
3179	if (!pContext->fMapped)
3180	{
3181	XMapWindow(pState->display, pContext->window);
3182	pContext->fMapped = true;
3183	}
3184	/* now swap the buffers, i.e. display the rendering result */
3185	glXSwapBuffers(pState->display, pContext->window);
3186	#endif
3187
3188	/*
3189	* Now we can reset the frame buffer association. Doing it earlier means no
3190	* output on darwin.
3191	*/
3192	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3193	return VINF_SUCCESS;
3194	}
3195
3196	#ifdef RT_OS_LINUX
3197	/**
3198	* X11 event handling thread.
3199	*
3200	* @returns VINF_SUCCESS (ignored)
3201	* @param hThreadSelf thread handle
3202	* @param pvUser pointer to pState structure
3203	*/
3204	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3205	{
3206	RT_NOREF(hThreadSelf);
3207	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3208	while (!pState->bTerminate)
3209	{
3210	while (XPending(pState->display) > 0)
3211	{
3212	XEvent event;
3213	XNextEvent(pState->display, &event);
3214
3215	switch (event.type)
3216	{
3217	default:
3218	break;
3219	}
3220	}
3221	/* sleep for 16ms to not burn too many cycles */
3222	RTThreadSleep(16);
3223	}
3224	return VINF_SUCCESS;
3225	}
3226	#endif // RT_OS_LINUX
3227
3228
3229	/**
3230	* Create a new 3d context
3231	*
3232	* @returns VBox status code.
3233	* @param pThis VGA device instance data.
3234	* @param cid Context id
3235	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3236	*/
3237	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3238	{
3239	int rc;
3240	PVMSVGA3DCONTEXT pContext;
3241	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3242
3243	AssertReturn(pState, VERR_NO_MEMORY);
3244	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3245	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3246	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3247	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3248	#endif
3249
3250	Log(("vmsvga3dContextDefine id %x\n", cid));
3251	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3252	if (pState->idTestContext == SVGA_ID_INVALID)
3253	{
3254	pState->idTestContext = 207;
3255	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3256	AssertRCReturn(rc, rc);
3257	}
3258	#endif
3259
3260	if (cid == VMSVGA3D_SHARED_CTX_ID)
3261	pContext = &pState->SharedCtx;
3262	else
3263	{
3264	if (cid >= pState->cContexts)
3265	{
3266	/* Grow the array. */
3267	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3268	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3269	AssertReturn(pvNew, VERR_NO_MEMORY);
3270	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3271	while (pState->cContexts < cNew)
3272	{
3273	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3274	AssertReturn(pContext, VERR_NO_MEMORY);
3275	pContext->id = SVGA3D_INVALID_ID;
3276	pState->papContexts[pState->cContexts++] = pContext;
3277	}
3278	}
3279	/* If one already exists with this id, then destroy it now. */
3280	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3281	vmsvga3dContextDestroy(pThis, cid);
3282
3283	pContext = pState->papContexts[cid];
3284	}
3285
3286	/*
3287	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3288	*/
3289	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3290	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3291	{
3292	pSharedCtx = &pState->SharedCtx;
3293	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3294	{
3295	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3296	AssertLogRelRCReturn(rc, rc);
3297	}
3298	}
3299
3300	/*
3301	* Initialize the context.
3302	*/
3303	memset(pContext, 0, sizeof(*pContext));
3304	pContext->id = cid;
3305	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3306	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3307
3308	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3309	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3310	pContext->idFramebuffer = OPENGL_INVALID_ID;
3311	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3312	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3313
3314	rc = ShaderContextCreate(&pContext->pShaderContext);
3315	AssertRCReturn(rc, rc);
3316
3317	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3318	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3319
3320	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3321
3322	#ifdef RT_OS_WINDOWS
3323	/* Create a context window. */
3324	CREATESTRUCT cs;
3325	cs.lpCreateParams = NULL;
3326	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3327	# ifdef DEBUG_GFX_WINDOW
3328	cs.lpszName = (char *)RTMemAllocZ(256);
3329	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3330	# else
3331	cs.lpszName = NULL;
3332	# endif
3333	cs.lpszClass = 0;
3334	# ifdef DEBUG_GFX_WINDOW
3335	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3336	# else
3337	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3338	# endif
3339	cs.x = 0;
3340	cs.y = 0;
3341	cs.cx = pThis->svga.uWidth;
3342	cs.cy = pThis->svga.uHeight;
3343	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3344	cs.hMenu = NULL;
3345	cs.hInstance = pState->hInstance;
3346
3347	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3348	AssertRCReturn(rc, rc);
3349
3350	pContext->hdc = GetDC(pContext->hwnd);
3351	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3352
3353	PIXELFORMATDESCRIPTOR pfd = {
3354	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3355	1, /* version number */
3356	PFD_DRAW_TO_WINDOW \| /* support window */
3357	PFD_DOUBLEBUFFER \| /* support double buffering */
3358	PFD_SUPPORT_OPENGL, /* support OpenGL */
3359	PFD_TYPE_RGBA, /* RGBA type */
3360	24, /* 24-bit color depth */
3361	0, 0, 0, 0, 0, 0, /* color bits ignored */
3362	8, /* alpha buffer */
3363	0, /* shift bit ignored */
3364	0, /* no accumulation buffer */
3365	0, 0, 0, 0, /* accum bits ignored */
3366	16, /* set depth buffer */
3367	16, /* set stencil buffer */
3368	0, /* no auxiliary buffer */
3369	PFD_MAIN_PLANE, /* main layer */
3370	0, /* reserved */
3371	0, 0, 0 /* layer masks ignored */
3372	};
3373	int pixelFormat;
3374	BOOL ret;
3375
3376	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3377	/** @todo is this really necessary?? */
3378	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3379	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3380
3381	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3382	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3383
3384	pContext->hglrc = wglCreateContext(pContext->hdc);
3385	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3386
3387	if (pSharedCtx)
3388	{
3389	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3390	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3391	}
3392
3393	#elif defined(RT_OS_DARWIN)
3394	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3395
3396	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3397	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3398	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3399	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3400	pThis->svga.uWidth, pThis->svga.uHeight,
3401	pShareContext, pContext->fOtherProfile);
3402
3403	#else
3404	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3405
3406	if (pState->display == NULL)
3407	{
3408	/* get an X display and make sure we have glX 1.3 */
3409	pState->display = XOpenDisplay(0);
3410	Assert(pState->display);
3411	int glxMajor, glxMinor;
3412	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3413	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3414	/* start our X event handling thread */
3415	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3416	if (RT_FAILURE(rc))
3417	{
3418	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3419	return rc;
3420	}
3421	}
3422	int attrib[] =
3423	{
3424	GLX_RGBA,
3425	GLX_RED_SIZE, 1,
3426	GLX_GREEN_SIZE, 1,
3427	GLX_BLUE_SIZE, 1,
3428	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3429	GLX_DOUBLEBUFFER,
3430	None
3431	};
3432	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3433	XSetWindowAttributes swa;
3434	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3435	swa.border_pixel = 0;
3436	swa.background_pixel = 0;
3437	swa.event_mask = StructureNotifyMask \| ExposureMask;
3438	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3439	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3440	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3441	0, vi->depth, InputOutput,
3442	vi->visual, flags, &swa);
3443	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3444	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3445
3446	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3447
3448	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3449	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3450	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3451	#endif
3452
3453	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3454
3455	/* NULL during the first PowerOn call. */
3456	if (pState->ext.glGenFramebuffers)
3457	{
3458	/* Create a framebuffer object for this context. */
3459	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3460	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3461
3462	/* Bind the object to the framebuffer target. */
3463	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3464	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3465
3466	/* Create read and draw framebuffer objects for this context. */
3467	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3468	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3469
3470	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3471	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3472
3473	}
3474	#if 0
3475	/** @todo move to shader lib!!! */
3476	/* Clear the screen */
3477	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3478
3479	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3480	glClearIndex(0);
3481	glClearDepth(1);
3482	glClearStencil(0xffff);
3483	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3484	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3485	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3486	if (pState->ext.glProvokingVertex)
3487	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3488	/** @todo move to shader lib!!! */
3489	#endif
3490	return VINF_SUCCESS;
3491	}
3492
3493
3494	/**
3495	* Create a new 3d context
3496	*
3497	* @returns VBox status code.
3498	* @param pThis VGA device instance data.
3499	* @param cid Context id
3500	*/
3501	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3502	{
3503	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3504	}
3505
3506	/**
3507	* Destroys a 3d context.
3508	*
3509	* @returns VBox status code.
3510	* @param pThis VGA device instance data.
3511	* @param pContext The context to destroy.
3512	* @param cid Context id
3513	*/
3514	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3515	{
3516	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3517	AssertReturn(pState, VERR_NO_MEMORY);
3518	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3519	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3520	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3521
3522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3523
3524	/* Destroy all leftover pixel shaders. */
3525	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3526	{
3527	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3528	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3529	}
3530	if (pContext->paPixelShader)
3531	RTMemFree(pContext->paPixelShader);
3532
3533	/* Destroy all leftover vertex shaders. */
3534	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3535	{
3536	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3537	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3538	}
3539	if (pContext->paVertexShader)
3540	RTMemFree(pContext->paVertexShader);
3541
3542	if (pContext->state.paVertexShaderConst)
3543	RTMemFree(pContext->state.paVertexShaderConst);
3544	if (pContext->state.paPixelShaderConst)
3545	RTMemFree(pContext->state.paPixelShaderConst);
3546
3547	if (pContext->pShaderContext)
3548	{
3549	int rc = ShaderContextDestroy(pContext->pShaderContext);
3550	AssertRC(rc);
3551	}
3552
3553	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3554	{
3555	/* Unbind the object from the framebuffer target. */
3556	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3557	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3558	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3559	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3560
3561	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3562	{
3563	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3564	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3565	}
3566	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3567	{
3568	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3569	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3570	}
3571	}
3572
3573	vmsvga3dOcclusionQueryDelete(pState, pContext);
3574
3575	#ifdef RT_OS_WINDOWS
3576	wglMakeCurrent(pContext->hdc, NULL);
3577	wglDeleteContext(pContext->hglrc);
3578	ReleaseDC(pContext->hwnd, pContext->hdc);
3579
3580	/* Destroy the window we've created. */
3581	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3582	AssertRC(rc);
3583	#elif defined(RT_OS_DARWIN)
3584	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3585	#elif defined(RT_OS_LINUX)
3586	glXMakeCurrent(pState->display, None, NULL);
3587	glXDestroyContext(pState->display, pContext->glxContext);
3588	XDestroyWindow(pState->display, pContext->window);
3589	#endif
3590
3591	memset(pContext, 0, sizeof(*pContext));
3592	pContext->id = SVGA3D_INVALID_ID;
3593
3594	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3595	return VINF_SUCCESS;
3596	}
3597
3598	/**
3599	* Destroy an existing 3d context
3600	*
3601	* @returns VBox status code.
3602	* @param pThis VGA device instance data.
3603	* @param cid Context id
3604	*/
3605	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3606	{
3607	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3608	AssertReturn(pState, VERR_WRONG_ORDER);
3609
3610	/*
3611	* Resolve the context and hand it to the common worker function.
3612	*/
3613	if ( cid < pState->cContexts
3614	&& pState->papContexts[cid]->id == cid)
3615	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3616
3617	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3618	return VINF_SUCCESS;
3619	}
3620
3621	/**
3622	* Worker for vmsvga3dChangeMode that resizes a context.
3623	*
3624	* @param pThis The VGA device instance data.
3625	* @param pState The VMSVGA3d state.
3626	* @param pContext The context.
3627	*/
3628	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3629	{
3630	#ifdef RT_OS_WINDOWS
3631	/* Resize the window. */
3632	CREATESTRUCT cs;
3633	RT_ZERO(cs);
3634	cs.cx = pThis->svga.uWidth;
3635	cs.cy = pThis->svga.uHeight;
3636	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3637	AssertRC(rc);
3638
3639	#elif defined(RT_OS_DARWIN)
3640	RT_NOREF(pState);
3641	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3642
3643	#elif defined(RT_OS_LINUX)
3644	XWindowChanges wc;
3645	wc.width = pThis->svga.uWidth;
3646	wc.height = pThis->svga.uHeight;
3647	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3648	#endif
3649	}
3650
3651	/* Handle resize */
3652	int vmsvga3dChangeMode(PVGASTATE pThis)
3653	{
3654	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3655	AssertReturn(pState, VERR_NO_MEMORY);
3656
3657	/* Resize the shared context too. */
3658	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3659	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3660
3661	/* Resize all active contexts. */
3662	for (uint32_t i = 0; i < pState->cContexts; i++)
3663	{
3664	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3665	if (pContext->id != SVGA3D_INVALID_ID)
3666	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3667	}
3668
3669	return VINF_SUCCESS;
3670	}
3671
3672
3673	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3674	{
3675	PVMSVGA3DCONTEXT pContext;
3676	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3677	AssertReturn(pState, VERR_NO_MEMORY);
3678	bool fModelViewChanged = false;
3679
3680	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3681
3682	if ( cid >= pState->cContexts
3683	\|\| pState->papContexts[cid]->id != cid)
3684	{
3685	Log(("vmsvga3dSetTransform invalid context id!\n"));
3686	return VERR_INVALID_PARAMETER;
3687	}
3688	pContext = pState->papContexts[cid];
3689	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3690
3691	/* Save this matrix for vm state save/restore. */
3692	pContext->state.aTransformState[type].fValid = true;
3693	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3694	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3695
3696	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)));
3697	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)));
3698	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)));
3699	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)));
3700
3701	switch (type)
3702	{
3703	case SVGA3D_TRANSFORM_VIEW:
3704	/* View * World = Model View */
3705	glMatrixMode(GL_MODELVIEW);
3706	glLoadMatrixf(matrix);
3707	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3708	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3709	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3710	fModelViewChanged = true;
3711	break;
3712
3713	case SVGA3D_TRANSFORM_PROJECTION:
3714	{
3715	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3716	AssertRCReturn(rc, rc);
3717	break;
3718	}
3719
3720	case SVGA3D_TRANSFORM_TEXTURE0:
3721	glMatrixMode(GL_TEXTURE);
3722	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3723	glLoadMatrixf(matrix);
3724	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3725	break;
3726
3727	case SVGA3D_TRANSFORM_TEXTURE1:
3728	case SVGA3D_TRANSFORM_TEXTURE2:
3729	case SVGA3D_TRANSFORM_TEXTURE3:
3730	case SVGA3D_TRANSFORM_TEXTURE4:
3731	case SVGA3D_TRANSFORM_TEXTURE5:
3732	case SVGA3D_TRANSFORM_TEXTURE6:
3733	case SVGA3D_TRANSFORM_TEXTURE7:
3734	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3735	return VERR_INVALID_PARAMETER;
3736
3737	case SVGA3D_TRANSFORM_WORLD:
3738	/* View * World = Model View */
3739	glMatrixMode(GL_MODELVIEW);
3740	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3741	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3742	else
3743	glLoadIdentity();
3744	glMultMatrixf(matrix);
3745	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3746	fModelViewChanged = true;
3747	break;
3748
3749	case SVGA3D_TRANSFORM_WORLD1:
3750	case SVGA3D_TRANSFORM_WORLD2:
3751	case SVGA3D_TRANSFORM_WORLD3:
3752	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3753	return VERR_INVALID_PARAMETER;
3754
3755	default:
3756	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3757	return VERR_INVALID_PARAMETER;
3758	}
3759
3760	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3761	if (fModelViewChanged)
3762	{
3763	/* Reprogram the clip planes. */
3764	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3765	{
3766	if (pContext->state.aClipPlane[j].fValid == true)
3767	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3768	}
3769
3770	/* Reprogram the light data. */
3771	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3772	{
3773	if (pContext->state.aLightData[j].fValidData == true)
3774	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3775	}
3776	}
3777
3778	return VINF_SUCCESS;
3779	}
3780
3781	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3782	{
3783	PVMSVGA3DCONTEXT pContext;
3784	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3785	AssertReturn(pState, VERR_NO_MEMORY);
3786
3787	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3788
3789	if ( cid >= pState->cContexts
3790	\|\| pState->papContexts[cid]->id != cid)
3791	{
3792	Log(("vmsvga3dSetZRange invalid context id!\n"));
3793	return VERR_INVALID_PARAMETER;
3794	}
3795	pContext = pState->papContexts[cid];
3796	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3797
3798	pContext->state.zRange = zRange;
3799	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3800
3801	if (zRange.min < -1.0)
3802	zRange.min = -1.0;
3803	if (zRange.max > 1.0)
3804	zRange.max = 1.0;
3805
3806	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3807	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3808	return VINF_SUCCESS;
3809	}
3810
3811	/**
3812	* Convert SVGA blend op value to its OpenGL equivalent
3813	*/
3814	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3815	{
3816	switch (blendOp)
3817	{
3818	case SVGA3D_BLENDOP_ZERO:
3819	return GL_ZERO;
3820	case SVGA3D_BLENDOP_ONE:
3821	return GL_ONE;
3822	case SVGA3D_BLENDOP_SRCCOLOR:
3823	return GL_SRC_COLOR;
3824	case SVGA3D_BLENDOP_INVSRCCOLOR:
3825	return GL_ONE_MINUS_SRC_COLOR;
3826	case SVGA3D_BLENDOP_SRCALPHA:
3827	return GL_SRC_ALPHA;
3828	case SVGA3D_BLENDOP_INVSRCALPHA:
3829	return GL_ONE_MINUS_SRC_ALPHA;
3830	case SVGA3D_BLENDOP_DESTALPHA:
3831	return GL_DST_ALPHA;
3832	case SVGA3D_BLENDOP_INVDESTALPHA:
3833	return GL_ONE_MINUS_DST_ALPHA;
3834	case SVGA3D_BLENDOP_DESTCOLOR:
3835	return GL_DST_COLOR;
3836	case SVGA3D_BLENDOP_INVDESTCOLOR:
3837	return GL_ONE_MINUS_DST_COLOR;
3838	case SVGA3D_BLENDOP_SRCALPHASAT:
3839	return GL_SRC_ALPHA_SATURATE;
3840	case SVGA3D_BLENDOP_BLENDFACTOR:
3841	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3842	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3843	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3844	default:
3845	AssertFailed();
3846	return GL_ONE;
3847	}
3848	}
3849
3850	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3851	{
3852	switch (blendEq)
3853	{
3854	case SVGA3D_BLENDEQ_ADD:
3855	return GL_FUNC_ADD;
3856	case SVGA3D_BLENDEQ_SUBTRACT:
3857	return GL_FUNC_SUBTRACT;
3858	case SVGA3D_BLENDEQ_REVSUBTRACT:
3859	return GL_FUNC_REVERSE_SUBTRACT;
3860	case SVGA3D_BLENDEQ_MINIMUM:
3861	return GL_MIN;
3862	case SVGA3D_BLENDEQ_MAXIMUM:
3863	return GL_MAX;
3864	default:
3865	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3866	return GL_FUNC_ADD;
3867	}
3868	}
3869
3870	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3871	{
3872	switch (cmpFunc)
3873	{
3874	case SVGA3D_CMP_NEVER:
3875	return GL_NEVER;
3876	case SVGA3D_CMP_LESS:
3877	return GL_LESS;
3878	case SVGA3D_CMP_EQUAL:
3879	return GL_EQUAL;
3880	case SVGA3D_CMP_LESSEQUAL:
3881	return GL_LEQUAL;
3882	case SVGA3D_CMP_GREATER:
3883	return GL_GREATER;
3884	case SVGA3D_CMP_NOTEQUAL:
3885	return GL_NOTEQUAL;
3886	case SVGA3D_CMP_GREATEREQUAL:
3887	return GL_GEQUAL;
3888	case SVGA3D_CMP_ALWAYS:
3889	return GL_ALWAYS;
3890	default:
3891	AssertFailed();
3892	return GL_LESS;
3893	}
3894	}
3895
3896	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3897	{
3898	switch (stencilOp)
3899	{
3900	case SVGA3D_STENCILOP_KEEP:
3901	return GL_KEEP;
3902	case SVGA3D_STENCILOP_ZERO:
3903	return GL_ZERO;
3904	case SVGA3D_STENCILOP_REPLACE:
3905	return GL_REPLACE;
3906	case SVGA3D_STENCILOP_INCRSAT:
3907	return GL_INCR_WRAP;
3908	case SVGA3D_STENCILOP_DECRSAT:
3909	return GL_DECR_WRAP;
3910	case SVGA3D_STENCILOP_INVERT:
3911	return GL_INVERT;
3912	case SVGA3D_STENCILOP_INCR:
3913	return GL_INCR;
3914	case SVGA3D_STENCILOP_DECR:
3915	return GL_DECR;
3916	default:
3917	AssertFailed();
3918	return GL_KEEP;
3919	}
3920	}
3921
3922	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3923	{
3924	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3925	PVMSVGA3DCONTEXT pContext;
3926	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3927	AssertReturn(pState, VERR_NO_MEMORY);
3928
3929	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3930
3931	if ( cid >= pState->cContexts
3932	\|\| pState->papContexts[cid]->id != cid)
3933	{
3934	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3935	return VERR_INVALID_PARAMETER;
3936	}
3937	pContext = pState->papContexts[cid];
3938	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3939
3940	for (unsigned i = 0; i < cRenderStates; i++)
3941	{
3942	GLenum enableCap = ~(GLenum)0;
3943	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3944	/* Save the render state for vm state saving. */
3945	if (pRenderState[i].state < SVGA3D_RS_MAX)
3946	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3947
3948	switch (pRenderState[i].state)
3949	{
3950	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3951	enableCap = GL_DEPTH_TEST;
3952	val = pRenderState[i].uintValue;
3953	break;
3954
3955	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3956	glDepthMask(!!pRenderState[i].uintValue);
3957	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3958	break;
3959
3960	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3961	enableCap = GL_ALPHA_TEST;
3962	val = pRenderState[i].uintValue;
3963	break;
3964
3965	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3966	enableCap = GL_DITHER;
3967	val = pRenderState[i].uintValue;
3968	break;
3969
3970	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3971	enableCap = GL_FOG;
3972	val = pRenderState[i].uintValue;
3973	break;
3974
3975	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3976	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3977	break;
3978
3979	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3980	enableCap = GL_LIGHTING;
3981	val = pRenderState[i].uintValue;
3982	break;
3983
3984	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3985	/* not applicable */
3986	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3987	break;
3988
3989	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3990	enableCap = GL_POINT_SPRITE_ARB;
3991	val = pRenderState[i].uintValue;
3992	break;
3993
3994	case SVGA3D_RS_POINTSIZE: /* float */
3995	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3996	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3997	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3998	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3999	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4000
4001	glPointSize(pRenderState[i].floatValue);
4002	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4003	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4004	break;
4005
4006	case SVGA3D_RS_POINTSIZEMIN: /* float */
4007	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4008	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4009	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4010	break;
4011
4012	case SVGA3D_RS_POINTSIZEMAX: /* float */
4013	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4014	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4015	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4016	break;
4017
4018	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4019	case SVGA3D_RS_POINTSCALE_A: /* float */
4020	case SVGA3D_RS_POINTSCALE_B: /* float */
4021	case SVGA3D_RS_POINTSCALE_C: /* float */
4022	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4023	break;
4024
4025	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4026	{
4027	GLfloat color[4]; /* red, green, blue, alpha */
4028
4029	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4030
4031	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4032	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4033	break;
4034	}
4035
4036	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4037	{
4038	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4039	for (uint32_t j = 0; j <= 5; j++)
4040	{
4041	if (pRenderState[i].uintValue & RT_BIT(j))
4042	glEnable(GL_CLIP_PLANE0 + j);
4043	else
4044	glDisable(GL_CLIP_PLANE0 + j);
4045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4046	}
4047	break;
4048	}
4049
4050	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4051	{
4052	GLfloat color[4]; /* red, green, blue, alpha */
4053
4054	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4055
4056	glFogfv(GL_FOG_COLOR, color);
4057	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4058	break;
4059	}
4060
4061	case SVGA3D_RS_FOGSTART: /* float */
4062	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4063	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4064	break;
4065
4066	case SVGA3D_RS_FOGEND: /* float */
4067	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4069	break;
4070
4071	case SVGA3D_RS_FOGDENSITY: /* float */
4072	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4073	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4074	break;
4075
4076	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4077	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4079	break;
4080
4081	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4082	{
4083	SVGA3dFogMode mode;
4084	mode.uintValue = pRenderState[i].uintValue;
4085
4086	enableCap = GL_FOG_MODE;
4087	switch (mode.s.function)
4088	{
4089	case SVGA3D_FOGFUNC_EXP:
4090	val = GL_EXP;
4091	break;
4092	case SVGA3D_FOGFUNC_EXP2:
4093	val = GL_EXP2;
4094	break;
4095	case SVGA3D_FOGFUNC_LINEAR:
4096	val = GL_LINEAR;
4097	break;
4098	default:
4099	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4100	break;
4101	}
4102
4103	/** @todo how to switch between vertex and pixel fog modes??? */
4104	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4105	#if 0
4106	/* The fog type determines the render state. */
4107	switch (mode.s.type)
4108	{
4109	case SVGA3D_FOGTYPE_VERTEX:
4110	renderState = D3DRS_FOGVERTEXMODE;
4111	break;
4112	case SVGA3D_FOGTYPE_PIXEL:
4113	renderState = D3DRS_FOGTABLEMODE;
4114	break;
4115	default:
4116	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4117	break;
4118	}
4119	#endif
4120
4121	/* Set the fog base to depth or range. */
4122	switch (mode.s.base)
4123	{
4124	case SVGA3D_FOGBASE_DEPTHBASED:
4125	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4126	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4127	break;
4128	case SVGA3D_FOGBASE_RANGEBASED:
4129	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4130	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4131	break;
4132	default:
4133	/* ignore */
4134	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4135	break;
4136	}
4137	break;
4138	}
4139
4140	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4141	{
4142	SVGA3dFillMode mode;
4143
4144	mode.uintValue = pRenderState[i].uintValue;
4145
4146	switch (mode.s.mode)
4147	{
4148	case SVGA3D_FILLMODE_POINT:
4149	val = GL_POINT;
4150	break;
4151	case SVGA3D_FILLMODE_LINE:
4152	val = GL_LINE;
4153	break;
4154	case SVGA3D_FILLMODE_FILL:
4155	val = GL_FILL;
4156	break;
4157	default:
4158	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4159	break;
4160	}
4161	/* @note only front and back faces */
4162	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4163	glPolygonMode(GL_FRONT_AND_BACK, val);
4164	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4165	break;
4166	}
4167
4168	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4169	switch (pRenderState[i].uintValue)
4170	{
4171	case SVGA3D_SHADEMODE_FLAT:
4172	val = GL_FLAT;
4173	break;
4174
4175	case SVGA3D_SHADEMODE_SMOOTH:
4176	val = GL_SMOOTH;
4177	break;
4178
4179	default:
4180	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4181	break;
4182	}
4183
4184	glShadeModel(val);
4185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4186	break;
4187
4188	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4189	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4190	/** @todo */
4191	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4192	/*
4193	renderState = D3DRS_LINEPATTERN;
4194	val = pRenderState[i].uintValue;
4195	*/
4196	break;
4197
4198	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4199	enableCap = GL_LINE_SMOOTH;
4200	val = pRenderState[i].uintValue;
4201	break;
4202
4203	case SVGA3D_RS_LINEWIDTH: /* float */
4204	glLineWidth(pRenderState[i].floatValue);
4205	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4206	break;
4207
4208	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4209	{
4210	/* Refresh the blending state based on the new enable setting. */
4211	SVGA3dRenderState renderstate[2];
4212
4213	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4214	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4215	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4216	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4217
4218	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4219	AssertRCReturn(rc, rc);
4220
4221	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4222	continue; /* ignore if blend is already enabled */
4223	} RT_FALL_THRU();
4224
4225	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4226	enableCap = GL_BLEND;
4227	val = pRenderState[i].uintValue;
4228	break;
4229
4230	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4231	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4232	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4233	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4234	{
4235	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4236	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4237
4238	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4239	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4240	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4241	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4242	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4243	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4244	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4245	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4246
4247	switch (pRenderState[i].state)
4248	{
4249	case SVGA3D_RS_SRCBLEND:
4250	srcRGB = blendop;
4251	break;
4252	case SVGA3D_RS_DSTBLEND:
4253	dstRGB = blendop;
4254	break;
4255	case SVGA3D_RS_SRCBLENDALPHA:
4256	srcAlpha = blendop;
4257	break;
4258	case SVGA3D_RS_DSTBLENDALPHA:
4259	dstAlpha = blendop;
4260	break;
4261	default:
4262	/* not possible; shut up gcc */
4263	AssertFailed();
4264	break;
4265	}
4266
4267	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4268	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4269	else
4270	glBlendFunc(srcRGB, dstRGB);
4271	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4272	break;
4273	}
4274
4275	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4276	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4277	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4278	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4279	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4280	else
4281	{
4282	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4283	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4284	#else
4285	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4286	#endif
4287	}
4288	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4289	break;
4290
4291	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4292	{
4293	GLfloat red, green, blue, alpha;
4294
4295	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4296
4297	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4298	glBlendColor(red, green, blue, alpha);
4299	#else
4300	pState->ext.glBlendColor(red, green, blue, alpha);
4301	#endif
4302	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4303	break;
4304	}
4305
4306	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4307	{
4308	GLenum mode = GL_BACK; /* default for OpenGL */
4309
4310	switch (pRenderState[i].uintValue)
4311	{
4312	case SVGA3D_FACE_NONE:
4313	break;
4314	case SVGA3D_FACE_FRONT:
4315	mode = GL_FRONT;
4316	break;
4317	case SVGA3D_FACE_BACK:
4318	mode = GL_BACK;
4319	break;
4320	case SVGA3D_FACE_FRONT_BACK:
4321	mode = GL_FRONT_AND_BACK;
4322	break;
4323	default:
4324	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4325	break;
4326	}
4327	enableCap = GL_CULL_FACE;
4328	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4329	{
4330	glCullFace(mode);
4331	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4332	val = 1;
4333	}
4334	else
4335	val = 0;
4336	break;
4337	}
4338
4339	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4340	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4341	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4342	break;
4343
4344	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4345	{
4346	GLclampf ref;
4347
4348	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4349	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4350	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4351	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4352	break;
4353	}
4354
4355	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4356	{
4357	GLint func;
4358
4359	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4360	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4361	glAlphaFunc(func, pRenderState[i].floatValue);
4362	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4363	break;
4364	}
4365
4366	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4367	enableCap = GL_STENCIL_TEST;
4368	val = pRenderState[i].uintValue;
4369	break;
4370
4371	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4372	case SVGA3D_RS_STENCILREF: /* uint32_t */
4373	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4374	{
4375	GLint func, ref;
4376	GLuint mask;
4377
4378	glGetIntegerv(GL_STENCIL_FUNC, &func);
4379	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4380	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4381	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4382	glGetIntegerv(GL_STENCIL_REF, &ref);
4383	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4384
4385	switch (pRenderState[i].state)
4386	{
4387	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4388	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4389	break;
4390
4391	case SVGA3D_RS_STENCILREF: /* uint32_t */
4392	ref = pRenderState[i].uintValue;
4393	break;
4394
4395	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4396	mask = pRenderState[i].uintValue;
4397	break;
4398
4399	default:
4400	/* not possible; shut up gcc */
4401	AssertFailed();
4402	break;
4403	}
4404
4405	glStencilFunc(func, ref, mask);
4406	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4407	break;
4408	}
4409
4410	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4411	glStencilMask(pRenderState[i].uintValue);
4412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4413	break;
4414
4415	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4416	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4417	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4418	{
4419	GLint sfail, dpfail, dppass;
4420	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4421
4422	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4423	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4424	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4425	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4426	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4427	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4428
4429	switch (pRenderState[i].state)
4430	{
4431	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4432	sfail = stencilop;
4433	break;
4434	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4435	dpfail = stencilop;
4436	break;
4437	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4438	dppass = stencilop;
4439	break;
4440	default:
4441	/* not possible; shut up gcc */
4442	AssertFailed();
4443	break;
4444	}
4445	glStencilOp(sfail, dpfail, dppass);
4446	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4447	break;
4448	}
4449
4450	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4451	/* @note GL_EXT_stencil_two_side required! */
4452	if (pState->ext.fEXT_stencil_two_side)
4453	{
4454	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4455	val = pRenderState[i].uintValue;
4456	}
4457	else
4458	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4459	break;
4460
4461	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4462	{
4463	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4464	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4465	*/
4466	GLint ref;
4467	GLuint mask;
4468
4469	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4470	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4471	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4472	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4473
4474	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4475	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4476	break;
4477	}
4478
4479	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4480	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4481	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4482	{
4483	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4484	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4485	*/
4486	GLint sfail, dpfail, dppass;
4487	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4488
4489	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4491	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4492	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4493	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4494	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4495
4496	switch (pRenderState[i].state)
4497	{
4498	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4499	sfail = stencilop;
4500	break;
4501	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4502	dpfail = stencilop;
4503	break;
4504	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4505	dppass = stencilop;
4506	break;
4507	default:
4508	/* not possible; shut up gcc */
4509	AssertFailed();
4510	break;
4511	}
4512	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4513	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4514	break;
4515	}
4516
4517	case SVGA3D_RS_ZBIAS: /* float */
4518	/** @todo unknown meaning; depth bias is not identical
4519	renderState = D3DRS_DEPTHBIAS;
4520	val = pRenderState[i].uintValue;
4521	*/
4522	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4523	break;
4524
4525	case SVGA3D_RS_DEPTHBIAS: /* float */
4526	{
4527	GLfloat factor;
4528
4529	/** @todo not sure if the d3d & ogl definitions are identical. */
4530
4531	/* Do not change the factor part. */
4532	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4533	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4534
4535	glPolygonOffset(factor, pRenderState[i].floatValue);
4536	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4537	break;
4538	}
4539
4540	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4541	{
4542	GLfloat units;
4543
4544	/** @todo not sure if the d3d & ogl definitions are identical. */
4545
4546	/* Do not change the factor part. */
4547	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4548	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4549
4550	glPolygonOffset(pRenderState[i].floatValue, units);
4551	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4552	break;
4553	}
4554
4555	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4556	{
4557	GLboolean red, green, blue, alpha;
4558	SVGA3dColorMask mask;
4559
4560	mask.uintValue = pRenderState[i].uintValue;
4561
4562	red = mask.s.red;
4563	green = mask.s.green;
4564	blue = mask.s.blue;
4565	alpha = mask.s.alpha;
4566
4567	glColorMask(red, green, blue, alpha);
4568	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4569	break;
4570	}
4571
4572	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4573	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4574	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4575	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4576	break;
4577
4578	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4579	enableCap = GL_SCISSOR_TEST;
4580	val = pRenderState[i].uintValue;
4581	break;
4582
4583	#if 0
4584	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4585	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4586	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4587	val = pRenderState[i].uintValue;
4588	break;
4589
4590	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4591	renderState = D3DRS_SPECULARMATERIALSOURCE;
4592	val = pRenderState[i].uintValue;
4593	break;
4594
4595	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4596	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4597	val = pRenderState[i].uintValue;
4598	break;
4599
4600	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4601	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4602	val = pRenderState[i].uintValue;
4603	break;
4604	#endif
4605
4606	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4607	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4608	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4609	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4610	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4611	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4612	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4613	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4614	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4615	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4616	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4617	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4618	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4619	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4620	break;
4621
4622	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4623	case SVGA3D_RS_TWEENFACTOR: /* float */
4624	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4625	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4626	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4627	break;
4628
4629	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4630	enableCap = GL_MULTISAMPLE;
4631	val = pRenderState[i].uintValue;
4632	break;
4633
4634	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4635	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4636	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4637	break;
4638
4639	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4640	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4641	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4642	/*
4643	renderState = D3DRS_COORDINATETYPE;
4644	val = pRenderState[i].uintValue;
4645	*/
4646	break;
4647
4648	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4649	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4650	/* Invert the selected mode because of y-inversion (?) */
4651	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4652	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4653	break;
4654
4655	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4656	//AssertFailed();
4657	/*
4658	D3DRS_SRGBWRITEENABLE ??
4659	renderState = D3DRS_OUTPUTGAMMA;
4660	val = pRenderState[i].uintValue;
4661	*/
4662	break;
4663
4664	#if 0
4665
4666	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4667	//AssertFailed();
4668	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4669	val = pRenderState[i].uintValue;
4670	break;
4671
4672	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4673	renderState = D3DRS_TEXTUREFACTOR;
4674	val = pRenderState[i].uintValue;
4675	break;
4676
4677	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4678	renderState = D3DRS_LOCALVIEWER;
4679	val = pRenderState[i].uintValue;
4680	break;
4681
4682	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4683	AssertFailed();
4684	/*
4685	renderState = D3DRS_ZVISIBLE;
4686	val = pRenderState[i].uintValue;
4687	*/
4688	break;
4689
4690	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4691	renderState = D3DRS_CLIPPING;
4692	val = pRenderState[i].uintValue;
4693	break;
4694
4695	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4696	glTexParameter GL_TEXTURE_WRAP_S
4697	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4698	renderState = D3DRS_WRAP0;
4699	val = pRenderState[i].uintValue;
4700	break;
4701
4702	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4703	glTexParameter GL_TEXTURE_WRAP_T
4704	renderState = D3DRS_WRAP1;
4705	val = pRenderState[i].uintValue;
4706	break;
4707
4708	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4709	glTexParameter GL_TEXTURE_WRAP_R
4710	renderState = D3DRS_WRAP2;
4711	val = pRenderState[i].uintValue;
4712	break;
4713
4714
4715	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4716	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4717	val = pRenderState[i].uintValue;
4718	break;
4719
4720
4721	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4722	renderState = D3DRS_BLENDOPALPHA;
4723	val = pRenderState[i].uintValue;
4724	break;
4725
4726	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4727	AssertFailed();
4728	/*
4729	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4730	val = pRenderState[i].uintValue;
4731	*/
4732	break;
4733
4734	#endif
4735	default:
4736	AssertFailed();
4737	break;
4738	}
4739
4740	if (enableCap != ~(GLenum)0)
4741	{
4742	if (val)
4743	glEnable(enableCap);
4744	else
4745	glDisable(enableCap);
4746	}
4747	}
4748
4749	return VINF_SUCCESS;
4750	}
4751
4752	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4753	{
4754	PVMSVGA3DCONTEXT pContext;
4755	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4756	PVMSVGA3DSURFACE pRenderTarget;
4757
4758	AssertReturn(pState, VERR_NO_MEMORY);
4759	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4760	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4761
4762	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4763
4764	if ( cid >= pState->cContexts
4765	\|\| pState->papContexts[cid]->id != cid)
4766	{
4767	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4768	return VERR_INVALID_PARAMETER;
4769	}
4770	pContext = pState->papContexts[cid];
4771	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4772
4773	/* Save for vm state save/restore. */
4774	pContext->state.aRenderTargets[type] = target.sid;
4775
4776	if (target.sid == SVGA3D_INVALID_ID)
4777	{
4778	/* Disable render target. */
4779	switch (type)
4780	{
4781	case SVGA3D_RT_DEPTH:
4782	case SVGA3D_RT_STENCIL:
4783	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4785	break;
4786
4787	case SVGA3D_RT_COLOR0:
4788	case SVGA3D_RT_COLOR1:
4789	case SVGA3D_RT_COLOR2:
4790	case SVGA3D_RT_COLOR3:
4791	case SVGA3D_RT_COLOR4:
4792	case SVGA3D_RT_COLOR5:
4793	case SVGA3D_RT_COLOR6:
4794	case SVGA3D_RT_COLOR7:
4795	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4796	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4797	break;
4798
4799	default:
4800	AssertFailedReturn(VERR_INVALID_PARAMETER);
4801	}
4802	return VINF_SUCCESS;
4803	}
4804
4805	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4806	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4807	pRenderTarget = pState->papSurfaces[target.sid];
4808
4809	switch (type)
4810	{
4811	case SVGA3D_RT_DEPTH:
4812	case SVGA3D_RT_STENCIL:
4813	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4814	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4815	{
4816	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4817	pContext = &pState->SharedCtx;
4818	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4819
4820	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4821	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4822
4823	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4824	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4825
4826	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4827	pRenderTarget->internalFormatGL,
4828	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4829	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4830	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4831
4832	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4833	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4834
4835	pContext = pState->papContexts[cid];
4836	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4837	pRenderTarget->idWeakContextAssociation = cid;
4838	}
4839
4840	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4841	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4842	Assert(!pRenderTarget->fDirty);
4843	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4844
4845	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4846
4847	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4848	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4849	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4850	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4851	break;
4852
4853	case SVGA3D_RT_COLOR0:
4854	case SVGA3D_RT_COLOR1:
4855	case SVGA3D_RT_COLOR2:
4856	case SVGA3D_RT_COLOR3:
4857	case SVGA3D_RT_COLOR4:
4858	case SVGA3D_RT_COLOR5:
4859	case SVGA3D_RT_COLOR6:
4860	case SVGA3D_RT_COLOR7:
4861	{
4862	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4863	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4864	{
4865	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));
4866	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4867	AssertRCReturn(rc, rc);
4868	}
4869
4870	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4871	Assert(!pRenderTarget->fDirty);
4872
4873	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4874
4875	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4876	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4877
4878	#ifdef DEBUG
4879	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4880	if (status != GL_FRAMEBUFFER_COMPLETE)
4881	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4882	#endif
4883	/** @todo use glDrawBuffers too? */
4884	break;
4885	}
4886
4887	default:
4888	AssertFailedReturn(VERR_INVALID_PARAMETER);
4889	}
4890
4891	return VINF_SUCCESS;
4892	}
4893
4894	#if 0
4895	/**
4896	* Convert SVGA texture combiner value to its D3D equivalent
4897	*/
4898	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4899	{
4900	switch (value)
4901	{
4902	case SVGA3D_TC_DISABLE:
4903	return D3DTOP_DISABLE;
4904	case SVGA3D_TC_SELECTARG1:
4905	return D3DTOP_SELECTARG1;
4906	case SVGA3D_TC_SELECTARG2:
4907	return D3DTOP_SELECTARG2;
4908	case SVGA3D_TC_MODULATE:
4909	return D3DTOP_MODULATE;
4910	case SVGA3D_TC_ADD:
4911	return D3DTOP_ADD;
4912	case SVGA3D_TC_ADDSIGNED:
4913	return D3DTOP_ADDSIGNED;
4914	case SVGA3D_TC_SUBTRACT:
4915	return D3DTOP_SUBTRACT;
4916	case SVGA3D_TC_BLENDTEXTUREALPHA:
4917	return D3DTOP_BLENDTEXTUREALPHA;
4918	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4919	return D3DTOP_BLENDDIFFUSEALPHA;
4920	case SVGA3D_TC_BLENDCURRENTALPHA:
4921	return D3DTOP_BLENDCURRENTALPHA;
4922	case SVGA3D_TC_BLENDFACTORALPHA:
4923	return D3DTOP_BLENDFACTORALPHA;
4924	case SVGA3D_TC_MODULATE2X:
4925	return D3DTOP_MODULATE2X;
4926	case SVGA3D_TC_MODULATE4X:
4927	return D3DTOP_MODULATE4X;
4928	case SVGA3D_TC_DSDT:
4929	AssertFailed(); /** @todo ??? */
4930	return D3DTOP_DISABLE;
4931	case SVGA3D_TC_DOTPRODUCT3:
4932	return D3DTOP_DOTPRODUCT3;
4933	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4934	return D3DTOP_BLENDTEXTUREALPHAPM;
4935	case SVGA3D_TC_ADDSIGNED2X:
4936	return D3DTOP_ADDSIGNED2X;
4937	case SVGA3D_TC_ADDSMOOTH:
4938	return D3DTOP_ADDSMOOTH;
4939	case SVGA3D_TC_PREMODULATE:
4940	return D3DTOP_PREMODULATE;
4941	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4942	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4943	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4944	return D3DTOP_MODULATECOLOR_ADDALPHA;
4945	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4946	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4947	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4948	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4949	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4950	return D3DTOP_BUMPENVMAPLUMINANCE;
4951	case SVGA3D_TC_MULTIPLYADD:
4952	return D3DTOP_MULTIPLYADD;
4953	case SVGA3D_TC_LERP:
4954	return D3DTOP_LERP;
4955	default:
4956	AssertFailed();
4957	return D3DTOP_DISABLE;
4958	}
4959	}
4960
4961	/**
4962	* Convert SVGA texture arg data value to its D3D equivalent
4963	*/
4964	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4965	{
4966	switch (value)
4967	{
4968	case SVGA3D_TA_CONSTANT:
4969	return D3DTA_CONSTANT;
4970	case SVGA3D_TA_PREVIOUS:
4971	return D3DTA_CURRENT; /* current = previous */
4972	case SVGA3D_TA_DIFFUSE:
4973	return D3DTA_DIFFUSE;
4974	case SVGA3D_TA_TEXTURE:
4975	return D3DTA_TEXTURE;
4976	case SVGA3D_TA_SPECULAR:
4977	return D3DTA_SPECULAR;
4978	default:
4979	AssertFailed();
4980	return 0;
4981	}
4982	}
4983
4984	/**
4985	* Convert SVGA texture transform flag value to its D3D equivalent
4986	*/
4987	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4988	{
4989	switch (value)
4990	{
4991	case SVGA3D_TEX_TRANSFORM_OFF:
4992	return D3DTTFF_DISABLE;
4993	case SVGA3D_TEX_TRANSFORM_S:
4994	return D3DTTFF_COUNT1; /** @todo correct? */
4995	case SVGA3D_TEX_TRANSFORM_T:
4996	return D3DTTFF_COUNT2; /** @todo correct? */
4997	case SVGA3D_TEX_TRANSFORM_R:
4998	return D3DTTFF_COUNT3; /** @todo correct? */
4999	case SVGA3D_TEX_TRANSFORM_Q:
5000	return D3DTTFF_COUNT4; /** @todo correct? */
5001	case SVGA3D_TEX_PROJECTED:
5002	return D3DTTFF_PROJECTED;
5003	default:
5004	AssertFailed();
5005	return 0;
5006	}
5007	}
5008	#endif
5009
5010	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5011	{
5012	switch (value)
5013	{
5014	case SVGA3D_TEX_ADDRESS_WRAP:
5015	return GL_REPEAT;
5016	case SVGA3D_TEX_ADDRESS_MIRROR:
5017	return GL_MIRRORED_REPEAT;
5018	case SVGA3D_TEX_ADDRESS_CLAMP:
5019	return GL_CLAMP_TO_EDGE;
5020	case SVGA3D_TEX_ADDRESS_BORDER:
5021	return GL_CLAMP_TO_BORDER;
5022	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5023	AssertFailed();
5024	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5025
5026	case SVGA3D_TEX_ADDRESS_EDGE:
5027	case SVGA3D_TEX_ADDRESS_INVALID:
5028	default:
5029	AssertFailed();
5030	return GL_REPEAT; /* default */
5031	}
5032	}
5033
5034	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5035	{
5036	switch (value)
5037	{
5038	case SVGA3D_TEX_FILTER_NONE:
5039	case SVGA3D_TEX_FILTER_LINEAR:
5040	return GL_LINEAR;
5041	case SVGA3D_TEX_FILTER_NEAREST:
5042	return GL_NEAREST;
5043	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5044	/** @todo */
5045	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5046	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5047	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5048	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5049	default:
5050	AssertFailed();
5051	return GL_LINEAR; /* default */
5052	}
5053	}
5054
5055	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5056	{
5057	/* flip the red and blue bytes */
5058	uint8_t blue = value & 0xff;
5059	uint8_t red = (value >> 16) & 0xff;
5060	return (value & 0xff00ff00) \| red \| (blue << 16);
5061	}
5062
5063	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5064	{
5065	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5066	GLenum currentStage = ~(GLenum)0;
5067	PVMSVGA3DCONTEXT pContext;
5068	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5069	AssertReturn(pState, VERR_NO_MEMORY);
5070
5071	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5072
5073	if ( cid >= pState->cContexts
5074	\|\| pState->papContexts[cid]->id != cid)
5075	{
5076	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5077	return VERR_INVALID_PARAMETER;
5078	}
5079	pContext = pState->papContexts[cid];
5080	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5081
5082	for (unsigned i = 0; i < cTextureStates; i++)
5083	{
5084	GLenum textureType = ~(GLenum)0;
5085	#if 0
5086	GLenum samplerType = ~(GLenum)0;
5087	#endif
5088
5089	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));
5090	/* Record the texture state for vm state saving. */
5091	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5092	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5093	{
5094	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5095	}
5096
5097	/* Active the right texture unit for subsequent texture state changes. */
5098	if (pTextureState[i].stage != currentStage \|\| i == 0)
5099	{
5100	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5101	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5102	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5103	{
5104	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5105	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5106	currentStage = pTextureState[i].stage;
5107	}
5108	else
5109	{
5110	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5111	continue;
5112	}
5113	}
5114
5115	switch (pTextureState[i].name)
5116	{
5117	case SVGA3D_TS_BUMPENVMAT00: /* float */
5118	case SVGA3D_TS_BUMPENVMAT01: /* float */
5119	case SVGA3D_TS_BUMPENVMAT10: /* float */
5120	case SVGA3D_TS_BUMPENVMAT11: /* float */
5121	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5122	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5123	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5124	break;
5125
5126	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5127	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5128	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5129	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5130	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5131	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5132	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5133	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5134	/** @todo not used by MesaGL */
5135	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5136	break;
5137	#if 0
5138
5139	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5140	textureType = D3DTSS_TEXCOORDINDEX;
5141	val = pTextureState[i].value;
5142	break;
5143
5144	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5145	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5146	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5147	break;
5148	#endif
5149
5150	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5151	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5152	{
5153	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5154	currentStage, pTextureState[i].value, pContext->aSidActiveTextures[currentStage]));
5155
5156	pContext->aSidActiveTextures[currentStage] = SVGA3D_INVALID_ID;
5157	/* Unselect the currently associated texture. */
5158	glBindTexture(GL_TEXTURE_2D, 0);
5159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5160	/* Necessary for the fixed pipeline. */
5161	glDisable(GL_TEXTURE_2D);
5162	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5163	}
5164	else
5165	{
5166	uint32_t sid = pTextureState[i].value;
5167
5168	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5169	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5170
5171	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5172
5173	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5174	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].mipmapSize.width,
5175	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5176
5177	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5178	{
5179	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5180	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5181	AssertRCReturn(rc, rc);
5182	}
5183
5184	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5186
5187	/* Necessary for the fixed pipeline. */
5188	glEnable(GL_TEXTURE_2D);
5189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5190
5191	if (pContext->aSidActiveTextures[currentStage] != sid)
5192	{
5193	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5194	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5195	{
5196	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5197	{
5198	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5199
5200	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5201	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5202	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5203	}
5204	}
5205	}
5206	pContext->aSidActiveTextures[currentStage] = sid;
5207	}
5208	/* Finished; continue with the next one. */
5209	continue;
5210
5211	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5212	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5213	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5214	break;
5215
5216	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5217	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5218	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5219	break;
5220
5221	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5222	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5223	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5224	break;
5225
5226	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5227	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5228	{
5229	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5230	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5231
5232	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5233	textureType = GL_TEXTURE_MIN_FILTER;
5234	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5235	{
5236	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5237	{
5238	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5239	val = GL_NEAREST_MIPMAP_LINEAR;
5240	else
5241	val = GL_NEAREST_MIPMAP_NEAREST;
5242	}
5243	else
5244	{
5245	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5246	val = GL_LINEAR_MIPMAP_LINEAR;
5247	else
5248	val = GL_LINEAR_MIPMAP_NEAREST;
5249	}
5250	}
5251	else
5252	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5253	break;
5254	}
5255
5256	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5257	textureType = GL_TEXTURE_MAG_FILTER;
5258	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5259	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5260	break;
5261
5262	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5263	{
5264	GLfloat color[4]; /* red, green, blue, alpha */
5265
5266	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5267
5268	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5269	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5270	break;
5271	}
5272
5273	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5274	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5275	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5276	break;
5277
5278	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5279	textureType = GL_TEXTURE_BASE_LEVEL;
5280	val = pTextureState[i].value;
5281	break;
5282
5283	#if 0
5284	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5285	samplerType = D3DSAMP_MAXANISOTROPY;
5286	val = pTextureState[i].value; /* Identical?? */
5287	break;
5288
5289	case SVGA3D_TS_GAMMA: /* float */
5290	samplerType = D3DSAMP_SRGBTEXTURE;
5291	/* Boolean in D3D */
5292	if (pTextureState[i].floatValue == 1.0f)
5293	val = FALSE;
5294	else
5295	val = TRUE;
5296	break;
5297	#endif
5298	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5299	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5300	AssertFailed();
5301	break;
5302
5303	default:
5304	//AssertFailed();
5305	break;
5306	}
5307
5308	if (textureType != ~(GLenum)0)
5309	{
5310	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5311	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5312	}
5313	}
5314
5315	return VINF_SUCCESS;
5316	}
5317
5318	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5319	{
5320	PVMSVGA3DCONTEXT pContext;
5321	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5322	AssertReturn(pState, VERR_NO_MEMORY);
5323	GLenum oglFace;
5324
5325	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5326
5327	if ( cid >= pState->cContexts
5328	\|\| pState->papContexts[cid]->id != cid)
5329	{
5330	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5331	return VERR_INVALID_PARAMETER;
5332	}
5333	pContext = pState->papContexts[cid];
5334	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5335
5336	switch (face)
5337	{
5338	case SVGA3D_FACE_NONE:
5339	case SVGA3D_FACE_FRONT:
5340	oglFace = GL_FRONT;
5341	break;
5342
5343	case SVGA3D_FACE_BACK:
5344	oglFace = GL_BACK;
5345	break;
5346
5347	case SVGA3D_FACE_FRONT_BACK:
5348	oglFace = GL_FRONT_AND_BACK;
5349	break;
5350
5351	default:
5352	AssertFailedReturn(VERR_INVALID_PARAMETER);
5353	}
5354
5355	/* Save for vm state save/restore. */
5356	pContext->state.aMaterial[face].fValid = true;
5357	pContext->state.aMaterial[face].material = *pMaterial;
5358	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5359
5360	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5361	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5362	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5363	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5364	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5365	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5366
5367	return VINF_SUCCESS;
5368	}
5369
5370	/** @todo Move into separate library as we are using logic from Wine here. */
5371	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5372	{
5373	PVMSVGA3DCONTEXT pContext;
5374	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5375	AssertReturn(pState, VERR_NO_MEMORY);
5376	float QuadAttenuation;
5377
5378	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5379
5380	if ( cid >= pState->cContexts
5381	\|\| pState->papContexts[cid]->id != cid)
5382	{
5383	Log(("vmsvga3dSetLightData invalid context id!\n"));
5384	return VERR_INVALID_PARAMETER;
5385	}
5386	pContext = pState->papContexts[cid];
5387	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5388
5389	/* Store for vm state save/restore */
5390	if (index < SVGA3D_MAX_LIGHTS)
5391	{
5392	pContext->state.aLightData[index].fValidData = true;
5393	pContext->state.aLightData[index].data = *pData;
5394	}
5395	else
5396	AssertFailed();
5397
5398	if ( pData->attenuation0 < 0.0f
5399	\|\| pData->attenuation1 < 0.0f
5400	\|\| pData->attenuation2 < 0.0f)
5401	{
5402	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5403	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5404	}
5405
5406	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5407	glMatrixMode(GL_MODELVIEW);
5408	glPushMatrix();
5409	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5410
5411	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5412	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5413	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5414
5415	if (pData->range * pData->range >= FLT_MIN)
5416	QuadAttenuation = 1.4f / (pData->range * pData->range);
5417	else
5418	QuadAttenuation = 0.0f;
5419
5420	switch (pData->type)
5421	{
5422	case SVGA3D_LIGHTTYPE_POINT:
5423	{
5424	GLfloat position[4];
5425
5426	position[0] = pData->position[0];
5427	position[1] = pData->position[1];
5428	position[2] = pData->position[2];
5429	position[3] = 1.0f;
5430
5431	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5432	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5433
5434	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5435	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5436
5437	/* Attenuation - Are these right? guessing... */
5438	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5439	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5440
5441	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5442	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5443
5444	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5445	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5446
5447	/** @todo range */
5448	break;
5449	}
5450
5451	case SVGA3D_LIGHTTYPE_SPOT1:
5452	{
5453	GLfloat exponent;
5454	GLfloat position[4];
5455	const GLfloat pi = 4.0f * atanf(1.0f);
5456
5457	position[0] = pData->position[0];
5458	position[1] = pData->position[1];
5459	position[2] = pData->position[2];
5460	position[3] = 1.0f;
5461
5462	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5463	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5464
5465	position[0] = pData->direction[0];
5466	position[1] = pData->direction[1];
5467	position[2] = pData->direction[2];
5468	position[3] = 1.0f;
5469
5470	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5471	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5472
5473	/*
5474	* opengl-ish and d3d-ish spot lights use too different models for the
5475	* light "intensity" as a function of the angle towards the main light direction,
5476	* so we only can approximate very roughly.
5477	* however spot lights are rather rarely used in games (if ever used at all).
5478	* furthermore if still used, probably nobody pays attention to such details.
5479	*/
5480	if (pData->falloff == 0)
5481	{
5482	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5483	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5484	* will always be 1.0 for both of them, and we don't have to care for the
5485	* rest of the rather complex calculation
5486	*/
5487	exponent = 0.0f;
5488	}
5489	else
5490	{
5491	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5492	if (rho < 0.0001f)
5493	rho = 0.0001f;
5494	exponent = -0.3f/log(cos(rho/2));
5495	}
5496	if (exponent > 128.0f)
5497	exponent = 128.0f;
5498
5499	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5500	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5501
5502	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5503	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5504
5505	/* Attenuation - Are these right? guessing... */
5506	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5507	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5508
5509	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5510	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5511
5512	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5513	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5514
5515	/** @todo range */
5516	break;
5517	}
5518
5519	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5520	{
5521	GLfloat position[4];
5522
5523	position[0] = -pData->direction[0];
5524	position[1] = -pData->direction[1];
5525	position[2] = -pData->direction[2];
5526	position[3] = 0.0f;
5527
5528	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5529	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5530
5531	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5532	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5533
5534	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5535	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5536	break;
5537	}
5538
5539	case SVGA3D_LIGHTTYPE_SPOT2:
5540	default:
5541	Log(("Unsupported light type!!\n"));
5542	return VERR_INVALID_PARAMETER;
5543	}
5544
5545	/* Restore the modelview matrix */
5546	glPopMatrix();
5547
5548	return VINF_SUCCESS;
5549	}
5550
5551	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5552	{
5553	PVMSVGA3DCONTEXT pContext;
5554	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5555	AssertReturn(pState, VERR_NO_MEMORY);
5556
5557	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5558
5559	if ( cid >= pState->cContexts
5560	\|\| pState->papContexts[cid]->id != cid)
5561	{
5562	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5563	return VERR_INVALID_PARAMETER;
5564	}
5565	pContext = pState->papContexts[cid];
5566	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5567
5568	/* Store for vm state save/restore */
5569	if (index < SVGA3D_MAX_LIGHTS)
5570	pContext->state.aLightData[index].fEnabled = !!enabled;
5571	else
5572	AssertFailed();
5573
5574	if (enabled)
5575	{
5576	/* Load the default settings if none have been set yet. */
5577	if (!pContext->state.aLightData[index].fValidData)
5578	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5579	glEnable(GL_LIGHT0 + index);
5580	}
5581	else
5582	glDisable(GL_LIGHT0 + index);
5583
5584	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5585	return VINF_SUCCESS;
5586	}
5587
5588	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5589	{
5590	PVMSVGA3DCONTEXT pContext;
5591	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5592	AssertReturn(pState, VERR_NO_MEMORY);
5593
5594	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5595
5596	if ( cid >= pState->cContexts
5597	\|\| pState->papContexts[cid]->id != cid)
5598	{
5599	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5600	return VERR_INVALID_PARAMETER;
5601	}
5602	pContext = pState->papContexts[cid];
5603	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5604
5605	/* Save for vm state save/restore. */
5606	pContext->state.RectViewPort = *pRect;
5607	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5608
5609	/** @todo y-inversion for partial viewport coordinates? */
5610	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5611	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5612
5613	/* Reset the projection matrix as that relies on the viewport setting. */
5614	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5615	{
5616	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5617	}
5618	else
5619	{
5620	float matrix[16];
5621
5622	/* identity matrix if no matrix set. */
5623	memset(matrix, 0, sizeof(matrix));
5624	matrix[0] = 1.0;
5625	matrix[5] = 1.0;
5626	matrix[10] = 1.0;
5627	matrix[15] = 1.0;
5628	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5629	}
5630
5631	return VINF_SUCCESS;
5632	}
5633
5634	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5635	{
5636	PVMSVGA3DCONTEXT pContext;
5637	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5638	AssertReturn(pState, VERR_NO_MEMORY);
5639	double oglPlane[4];
5640
5641	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)));
5642	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5643
5644	if ( cid >= pState->cContexts
5645	\|\| pState->papContexts[cid]->id != cid)
5646	{
5647	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5648	return VERR_INVALID_PARAMETER;
5649	}
5650	pContext = pState->papContexts[cid];
5651	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5652
5653	/* Store for vm state save/restore. */
5654	pContext->state.aClipPlane[index].fValid = true;
5655	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5656
5657	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5658	oglPlane[0] = (double)plane[0];
5659	oglPlane[1] = (double)plane[1];
5660	oglPlane[2] = (double)plane[2];
5661	oglPlane[3] = (double)plane[3];
5662
5663	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5664	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5665
5666	return VINF_SUCCESS;
5667	}
5668
5669	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5670	{
5671	PVMSVGA3DCONTEXT pContext;
5672	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5673	AssertReturn(pState, VERR_NO_MEMORY);
5674
5675	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5676
5677	if ( cid >= pState->cContexts
5678	\|\| pState->papContexts[cid]->id != cid)
5679	{
5680	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5681	return VERR_INVALID_PARAMETER;
5682	}
5683	pContext = pState->papContexts[cid];
5684	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5685
5686	/* Store for vm state save/restore. */
5687	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5688	pContext->state.RectScissor = *pRect;
5689
5690	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5692
5693	return VINF_SUCCESS;
5694	}
5695
5696	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5697	{
5698	/* Convert byte color components to float (0-1.0) */
5699	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5700	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5701	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5702	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5703	}
5704
5705	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5706	uint32_t cRects, SVGA3dRect *pRect)
5707	{
5708	GLbitfield mask = 0;
5709	PVMSVGA3DCONTEXT pContext;
5710	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5711	AssertReturn(pState, VERR_NO_MEMORY);
5712	GLboolean fDepthWriteEnabled = GL_FALSE;
5713
5714	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));
5715
5716	if ( cid >= pState->cContexts
5717	\|\| pState->papContexts[cid]->id != cid)
5718	{
5719	Log(("vmsvga3dCommandClear invalid context id!\n"));
5720	return VERR_INVALID_PARAMETER;
5721	}
5722	pContext = pState->papContexts[cid];
5723	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5724
5725	if (clearFlag & SVGA3D_CLEAR_COLOR)
5726	{
5727	GLfloat red, green, blue, alpha;
5728
5729	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5730
5731	/* Set the color clear value. */
5732	glClearColor(red, green, blue, alpha);
5733
5734	mask \|= GL_COLOR_BUFFER_BIT;
5735	}
5736	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5737	{
5738	/** @todo possibly the same problem as with glDepthMask */
5739	glClearStencil(stencil);
5740	mask \|= GL_STENCIL_BUFFER_BIT;
5741	}
5742	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5743	{
5744	glClearDepth((GLdouble)depth);
5745	mask \|= GL_DEPTH_BUFFER_BIT;
5746
5747	/* glClear will not clear the depth buffer if writing is disabled. */
5748	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5749	if (fDepthWriteEnabled == GL_FALSE)
5750	glDepthMask(GL_TRUE);
5751	}
5752
5753	if (cRects)
5754	{
5755	/* Save the current scissor test bit and scissor box. */
5756	glPushAttrib(GL_SCISSOR_BIT);
5757	glEnable(GL_SCISSOR_TEST);
5758	for (unsigned i=0; i < cRects; i++)
5759	{
5760	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));
5761	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5762	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5763	glClear(mask);
5764	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5765	}
5766	/* Restore the old scissor test bit and box */
5767	glPopAttrib();
5768	}
5769	else
5770	{
5771	glClear(mask);
5772	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5773	}
5774
5775	/* Restore depth write state. */
5776	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5777	&& fDepthWriteEnabled == GL_FALSE)
5778	glDepthMask(GL_FALSE);
5779
5780	return VINF_SUCCESS;
5781	}
5782
5783	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5784	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5785	{
5786	normalized = GL_FALSE;
5787	switch (identity.type)
5788	{
5789	case SVGA3D_DECLTYPE_FLOAT1:
5790	size = 1;
5791	type = GL_FLOAT;
5792	break;
5793	case SVGA3D_DECLTYPE_FLOAT2:
5794	size = 2;
5795	type = GL_FLOAT;
5796	break;
5797	case SVGA3D_DECLTYPE_FLOAT3:
5798	size = 3;
5799	type = GL_FLOAT;
5800	break;
5801	case SVGA3D_DECLTYPE_FLOAT4:
5802	size = 4;
5803	type = GL_FLOAT;
5804	break;
5805
5806	case SVGA3D_DECLTYPE_D3DCOLOR:
5807	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5808	type = GL_UNSIGNED_BYTE;
5809	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5810	break;
5811
5812	case SVGA3D_DECLTYPE_UBYTE4N:
5813	normalized = GL_TRUE;
5814	RT_FALL_THRU();
5815	case SVGA3D_DECLTYPE_UBYTE4:
5816	size = 4;
5817	type = GL_UNSIGNED_BYTE;
5818	break;
5819
5820	case SVGA3D_DECLTYPE_SHORT2N:
5821	normalized = GL_TRUE;
5822	RT_FALL_THRU();
5823	case SVGA3D_DECLTYPE_SHORT2:
5824	size = 2;
5825	type = GL_SHORT;
5826	break;
5827
5828	case SVGA3D_DECLTYPE_SHORT4N:
5829	normalized = GL_TRUE;
5830	RT_FALL_THRU();
5831	case SVGA3D_DECLTYPE_SHORT4:
5832	size = 4;
5833	type = GL_SHORT;
5834	break;
5835
5836	case SVGA3D_DECLTYPE_USHORT4N:
5837	normalized = GL_TRUE;
5838	size = 4;
5839	type = GL_UNSIGNED_SHORT;
5840	break;
5841
5842	case SVGA3D_DECLTYPE_USHORT2N:
5843	normalized = GL_TRUE;
5844	size = 2;
5845	type = GL_UNSIGNED_SHORT;
5846	break;
5847
5848	case SVGA3D_DECLTYPE_UDEC3:
5849	size = 3;
5850	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5851	break;
5852
5853	case SVGA3D_DECLTYPE_DEC3N:
5854	normalized = true;
5855	size = 3;
5856	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5857	break;
5858
5859	case SVGA3D_DECLTYPE_FLOAT16_2:
5860	size = 2;
5861	type = GL_HALF_FLOAT;
5862	break;
5863	case SVGA3D_DECLTYPE_FLOAT16_4:
5864	size = 4;
5865	type = GL_HALF_FLOAT;
5866	break;
5867	default:
5868	AssertFailedReturn(VERR_INVALID_PARAMETER);
5869	}
5870
5871	//pVertexElement->Method = identity.method;
5872	//pVertexElement->Usage = identity.usage;
5873
5874	return VINF_SUCCESS;
5875	}
5876
5877	/* Convert VMWare primitive type to its OpenGL equivalent. */
5878	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5879	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5880	{
5881	switch (PrimitiveType)
5882	{
5883	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5884	*pMode = GL_TRIANGLES;
5885	pcVertices = cPrimitiveCount 3;
5886	break;
5887	case SVGA3D_PRIMITIVE_POINTLIST:
5888	*pMode = GL_POINTS;
5889	*pcVertices = cPrimitiveCount;
5890	break;
5891	case SVGA3D_PRIMITIVE_LINELIST:
5892	*pMode = GL_LINES;
5893	pcVertices = cPrimitiveCount 2;
5894	break;
5895	case SVGA3D_PRIMITIVE_LINESTRIP:
5896	*pMode = GL_LINE_STRIP;
5897	*pcVertices = cPrimitiveCount + 1;
5898	break;
5899	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5900	*pMode = GL_TRIANGLE_STRIP;
5901	*pcVertices = cPrimitiveCount + 2;
5902	break;
5903	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5904	*pMode = GL_TRIANGLE_FAN;
5905	*pcVertices = cPrimitiveCount + 2;
5906	break;
5907	default:
5908	return VERR_INVALID_PARAMETER;
5909	}
5910	return VINF_SUCCESS;
5911	}
5912
5913	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5914	{
5915	int rc;
5916
5917	/* Reset the view matrix (also takes the world matrix into account). */
5918	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5919	{
5920	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5921	}
5922	else
5923	{
5924	float matrix[16];
5925
5926	/* identity matrix if no matrix set. */
5927	memset(matrix, 0, sizeof(matrix));
5928	matrix[0] = 1.0;
5929	matrix[5] = 1.0;
5930	matrix[10] = 1.0;
5931	matrix[15] = 1.0;
5932	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5933	}
5934
5935	/* Reset the projection matrix. */
5936	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5937	{
5938	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5939	}
5940	else
5941	{
5942	float matrix[16];
5943
5944	/* identity matrix if no matrix set. */
5945	memset(matrix, 0, sizeof(matrix));
5946	matrix[0] = 1.0;
5947	matrix[5] = 1.0;
5948	matrix[10] = 1.0;
5949	matrix[15] = 1.0;
5950	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5951	}
5952	AssertRC(rc);
5953	return rc;
5954	}
5955
5956	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5957	{
5958	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5959	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5960	PVMSVGA3DSURFACE pVertexSurface;
5961
5962	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5963	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5964
5965	pVertexSurface = pState->papSurfaces[sidVertex];
5966	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5967
5968	/* Create and/or bind the vertex buffer. */
5969	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5970	{
5971	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5972	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5973	pContext = &pState->SharedCtx;
5974	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5975
5976	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5977	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5978
5979	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5980	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5981
5982	Assert(pVertexSurface->fDirty);
5983	/** @todo rethink usage dynamic/static */
5984	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5985	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5986
5987	pVertexSurface->pMipmapLevels[0].fDirty = false;
5988	pVertexSurface->fDirty = false;
5989
5990	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5991
5992	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5993	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5994
5995	pContext = pSavedCtx;
5996	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5997	}
5998
5999	Assert(pVertexSurface->fDirty == false);
6000	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6001	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6002
6003	/* Setup the vertex declarations. */
6004	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6005	{
6006	GLint size;
6007	GLenum type;
6008	GLboolean normalized;
6009	GLuint index = iVertexDeclBase + iVertex;
6010
6011	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));
6012
6013	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6014	AssertRCReturn(rc, rc);
6015
6016	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6017	{
6018	/* Use numbered vertex arrays when shaders are active. */
6019	pState->ext.glEnableVertexAttribArray(index);
6020	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6021	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6022	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6023	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6024	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6025	}
6026	else
6027	{
6028	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6029	switch (pVertexDecl[iVertex].identity.usage)
6030	{
6031	case SVGA3D_DECLUSAGE_POSITIONT:
6032	case SVGA3D_DECLUSAGE_POSITION:
6033	{
6034	glEnableClientState(GL_VERTEX_ARRAY);
6035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6036	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6037	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6038	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6039	break;
6040	}
6041	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6042	AssertFailed();
6043	break;
6044	case SVGA3D_DECLUSAGE_BLENDINDICES:
6045	AssertFailed();
6046	break;
6047	case SVGA3D_DECLUSAGE_NORMAL:
6048	glEnableClientState(GL_NORMAL_ARRAY);
6049	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6050	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6051	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6053	break;
6054	case SVGA3D_DECLUSAGE_PSIZE:
6055	AssertFailed();
6056	break;
6057	case SVGA3D_DECLUSAGE_TEXCOORD:
6058	/* Specify the affected texture unit. */
6059	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6060	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6061	#else
6062	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6063	#endif
6064	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6065	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6066	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6067	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6069	break;
6070	case SVGA3D_DECLUSAGE_TANGENT:
6071	AssertFailed();
6072	break;
6073	case SVGA3D_DECLUSAGE_BINORMAL:
6074	AssertFailed();
6075	break;
6076	case SVGA3D_DECLUSAGE_TESSFACTOR:
6077	AssertFailed();
6078	break;
6079	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6080	glEnableClientState(GL_COLOR_ARRAY);
6081	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6082	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6083	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6085	break;
6086	case SVGA3D_DECLUSAGE_FOG:
6087	glEnableClientState(GL_FOG_COORD_ARRAY);
6088	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6089	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6090	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6092	break;
6093	case SVGA3D_DECLUSAGE_DEPTH:
6094	AssertFailed();
6095	break;
6096	case SVGA3D_DECLUSAGE_SAMPLE:
6097	AssertFailed();
6098	break;
6099	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6100	}
6101	}
6102
6103	#ifdef LOG_ENABLED
6104	if (pVertexDecl[iVertex].array.stride == 0)
6105	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6106	#endif
6107	}
6108
6109	return VINF_SUCCESS;
6110	}
6111
6112	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6113	{
6114	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6115
6116	/* Clean up the vertex declarations. */
6117	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6118	{
6119	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6120	{
6121	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6122	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6123	vmsvga3dResetTransformMatrices(pThis, pContext);
6124	}
6125
6126	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6127	{
6128	/* Use numbered vertex arrays when shaders are active. */
6129	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6130	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6131	}
6132	else
6133	{
6134	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6135	switch (pVertexDecl[iVertex].identity.usage)
6136	{
6137	case SVGA3D_DECLUSAGE_POSITION:
6138	case SVGA3D_DECLUSAGE_POSITIONT:
6139	glDisableClientState(GL_VERTEX_ARRAY);
6140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6141	break;
6142	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6143	break;
6144	case SVGA3D_DECLUSAGE_BLENDINDICES:
6145	break;
6146	case SVGA3D_DECLUSAGE_NORMAL:
6147	glDisableClientState(GL_NORMAL_ARRAY);
6148	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6149	break;
6150	case SVGA3D_DECLUSAGE_PSIZE:
6151	break;
6152	case SVGA3D_DECLUSAGE_TEXCOORD:
6153	/* Specify the affected texture unit. */
6154	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6155	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6156	#else
6157	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6158	#endif
6159	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6161	break;
6162	case SVGA3D_DECLUSAGE_TANGENT:
6163	break;
6164	case SVGA3D_DECLUSAGE_BINORMAL:
6165	break;
6166	case SVGA3D_DECLUSAGE_TESSFACTOR:
6167	break;
6168	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6169	glDisableClientState(GL_COLOR_ARRAY);
6170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6171	break;
6172	case SVGA3D_DECLUSAGE_FOG:
6173	glDisableClientState(GL_FOG_COORD_ARRAY);
6174	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6175	break;
6176	case SVGA3D_DECLUSAGE_DEPTH:
6177	break;
6178	case SVGA3D_DECLUSAGE_SAMPLE:
6179	break;
6180	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6181	}
6182	}
6183	}
6184	/* Unbind the vertex buffer after usage. */
6185	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6187	return VINF_SUCCESS;
6188	}
6189
6190	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6191	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6192	SVGA3dVertexDivisor *pVertexDivisor)
6193	{
6194	RT_NOREF(pVertexDivisor);
6195	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6196	AssertReturn(pState, VERR_INTERNAL_ERROR);
6197	PVMSVGA3DCONTEXT pContext;
6198	int rc = VERR_NOT_IMPLEMENTED;
6199	uint32_t iCurrentVertex;
6200
6201	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6202
6203	/* Caller already check these, but it cannot hurt to check again... */
6204	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6205	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6206	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6207
6208	/** @todo Non-zero cVertexDivisor */
6209	Assert(!cVertexDivisor);
6210
6211	if ( cid >= pState->cContexts
6212	\|\| pState->papContexts[cid]->id != cid)
6213	{
6214	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6215	return VERR_INVALID_PARAMETER;
6216	}
6217	pContext = pState->papContexts[cid];
6218	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6219
6220	/* Check for pretransformed vertex declarations. */
6221	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6222	{
6223	switch (pVertexDecl[iVertex].identity.usage)
6224	{
6225	case SVGA3D_DECLUSAGE_POSITIONT:
6226	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6227	RT_FALL_THRU();
6228	case SVGA3D_DECLUSAGE_POSITION:
6229	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6230	pContext->state.RectViewPort.h,
6231	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6232	break;
6233	default: /* Shut up MSC. */ break;
6234	}
6235	}
6236
6237	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6238	if (pContext->pShaderContext)
6239	{
6240	uint32_t rtHeight = 0;
6241
6242	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6243	{
6244	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6245	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6246	}
6247
6248	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6249	}
6250
6251	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6252	iCurrentVertex = 0;
6253	while (iCurrentVertex < numVertexDecls)
6254	{
6255	uint32_t sidVertex = SVGA_ID_INVALID;
6256	uint32_t iVertex;
6257
6258	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6259	{
6260	if ( sidVertex != SVGA_ID_INVALID
6261	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6262	)
6263	break;
6264	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6265	}
6266
6267	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6268	AssertRCReturn(rc, rc);
6269
6270	iCurrentVertex = iVertex;
6271	}
6272
6273	/* Now draw the primitives. */
6274	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6275	{
6276	GLenum modeDraw;
6277	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6278	PVMSVGA3DSURFACE pIndexSurface = NULL;
6279	unsigned cVertices;
6280
6281	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6282	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6283	if (RT_FAILURE(rc))
6284	{
6285	AssertRC(rc);
6286	goto internal_error;
6287	}
6288
6289	if (sidIndex != SVGA3D_INVALID_ID)
6290	{
6291	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6292
6293	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6294	\|\| sidIndex >= pState->cSurfaces
6295	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6296	{
6297	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6298	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6299	rc = VERR_INVALID_PARAMETER;
6300	goto internal_error;
6301	}
6302	pIndexSurface = pState->papSurfaces[sidIndex];
6303	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6304
6305	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6306	{
6307	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6308	pContext = &pState->SharedCtx;
6309	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6310
6311	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6312	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6313
6314	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6315	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6316
6317	Assert(pIndexSurface->fDirty);
6318
6319	/** @todo rethink usage dynamic/static */
6320	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6322
6323	pIndexSurface->pMipmapLevels[0].fDirty = false;
6324	pIndexSurface->fDirty = false;
6325
6326	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6327
6328	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6329	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6330
6331	pContext = pState->papContexts[cid];
6332	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6333	}
6334	Assert(pIndexSurface->fDirty == false);
6335
6336	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6337	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6338	}
6339
6340	if (!pIndexSurface)
6341	{
6342	/* Render without an index buffer */
6343	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6344	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6345	}
6346	else
6347	{
6348	GLenum indexType;
6349
6350	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6351	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6352
6353	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6354	{
6355	indexType = GL_UNSIGNED_BYTE;
6356	}
6357	else
6358	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6359	{
6360	indexType = GL_UNSIGNED_SHORT;
6361	}
6362	else
6363	{
6364	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6365	indexType = GL_UNSIGNED_INT;
6366	}
6367
6368	/* Render with an index buffer */
6369	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));
6370	if (pRange[iPrimitive].indexBias == 0)
6371	glDrawElements(modeDraw,
6372	cVertices,
6373	indexType,
6374	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6375	else
6376	pState->ext.glDrawElementsBaseVertex(modeDraw,
6377	cVertices,
6378	indexType,
6379	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6380	pRange[iPrimitive].indexBias); /* basevertex */
6381
6382	/* Unbind the index buffer after usage. */
6383	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6384	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6385	}
6386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6387	}
6388
6389	internal_error:
6390
6391	/* Deactivate the vertex declarations. */
6392	iCurrentVertex = 0;
6393	while (iCurrentVertex < numVertexDecls)
6394	{
6395	uint32_t sidVertex = SVGA_ID_INVALID;
6396	uint32_t iVertex;
6397
6398	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6399	{
6400	if ( sidVertex != SVGA_ID_INVALID
6401	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6402	)
6403	break;
6404	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6405	}
6406
6407	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6408	AssertRCReturn(rc, rc);
6409
6410	iCurrentVertex = iVertex;
6411	}
6412	#ifdef DEBUG
6413	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
6414	{
6415	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6416	{
6417	GLint activeTexture = 0;
6418	GLint activeTextureUnit = 0;
6419
6420	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6421	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6422	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6423	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6424
6425	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6426	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6427	pState->ext.glActiveTexture(activeTextureUnit);
6428	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6429
6430	# 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. */
6431	if (pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6432	{
6433	PVMSVGA3DSURFACE pTexture;
6434	pTexture = pState->papSurfaces[pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0]];
6435
6436	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6437	}
6438	# else
6439	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTextures[i]];
6440	AssertMsg(pTexture->id == pContext->aSidActiveTextures[i], ("%x vs %x\n", pTexture->id, pContext->aSidActiveTextures[i]));
6441	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6442	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6443	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6444	# endif
6445	}
6446	}
6447	#endif
6448
6449	#ifdef DEBUG_GFX_WINDOW
6450	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0])
6451	{
6452	SVGA3dCopyRect rect;
6453
6454	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6455	rect.w = pContext->state.RectViewPort.w;
6456	rect.h = pContext->state.RectViewPort.h;
6457	vmsvga3dCommandPresent(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], 0, NULL);
6458	}
6459	#endif
6460
6461	return rc;
6462	}
6463
6464
6465	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6466	{
6467	PVMSVGA3DCONTEXT pContext;
6468	PVMSVGA3DSHADER pShader;
6469	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6470	AssertReturn(pState, VERR_NO_MEMORY);
6471	int rc;
6472
6473	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6474	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6475
6476	if ( cid >= pState->cContexts
6477	\|\| pState->papContexts[cid]->id != cid)
6478	{
6479	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6480	return VERR_INVALID_PARAMETER;
6481	}
6482	pContext = pState->papContexts[cid];
6483	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6484
6485	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6486	if (type == SVGA3D_SHADERTYPE_VS)
6487	{
6488	if (shid >= pContext->cVertexShaders)
6489	{
6490	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6491	AssertReturn(pvNew, VERR_NO_MEMORY);
6492	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6493	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6494	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6495	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6496	pContext->cVertexShaders = shid + 1;
6497	}
6498	/* If one already exists with this id, then destroy it now. */
6499	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6500	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6501
6502	pShader = &pContext->paVertexShader[shid];
6503	}
6504	else
6505	{
6506	Assert(type == SVGA3D_SHADERTYPE_PS);
6507	if (shid >= pContext->cPixelShaders)
6508	{
6509	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6510	AssertReturn(pvNew, VERR_NO_MEMORY);
6511	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6512	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6513	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6514	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6515	pContext->cPixelShaders = shid + 1;
6516	}
6517	/* If one already exists with this id, then destroy it now. */
6518	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6519	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6520
6521	pShader = &pContext->paPixelShader[shid];
6522	}
6523
6524	memset(pShader, 0, sizeof(*pShader));
6525	pShader->id = shid;
6526	pShader->cid = cid;
6527	pShader->type = type;
6528	pShader->cbData = cbData;
6529	pShader->pShaderProgram = RTMemAllocZ(cbData);
6530	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6531	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6532
6533	#ifdef DUMP_SHADER_DISASSEMBLY
6534	LPD3DXBUFFER pDisassembly;
6535	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6536	if (hr == D3D_OK)
6537	{
6538	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6539	pDisassembly->Release();
6540	}
6541	#endif
6542
6543	switch (type)
6544	{
6545	case SVGA3D_SHADERTYPE_VS:
6546	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6547	break;
6548
6549	case SVGA3D_SHADERTYPE_PS:
6550	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6551	break;
6552
6553	default:
6554	AssertFailedReturn(VERR_INVALID_PARAMETER);
6555	}
6556	if (rc != VINF_SUCCESS)
6557	{
6558	RTMemFree(pShader->pShaderProgram);
6559	memset(pShader, 0, sizeof(*pShader));
6560	pShader->id = SVGA3D_INVALID_ID;
6561	}
6562
6563	return rc;
6564	}
6565
6566	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6567	{
6568	PVMSVGA3DCONTEXT pContext;
6569	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6570	AssertReturn(pState, VERR_NO_MEMORY);
6571	PVMSVGA3DSHADER pShader = NULL;
6572	int rc;
6573
6574	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6575
6576	if ( cid >= pState->cContexts
6577	\|\| pState->papContexts[cid]->id != cid)
6578	{
6579	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6580	return VERR_INVALID_PARAMETER;
6581	}
6582	pContext = pState->papContexts[cid];
6583	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6584
6585	if (type == SVGA3D_SHADERTYPE_VS)
6586	{
6587	if ( shid < pContext->cVertexShaders
6588	&& pContext->paVertexShader[shid].id == shid)
6589	{
6590	pShader = &pContext->paVertexShader[shid];
6591	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6592	AssertRC(rc);
6593	}
6594	}
6595	else
6596	{
6597	Assert(type == SVGA3D_SHADERTYPE_PS);
6598	if ( shid < pContext->cPixelShaders
6599	&& pContext->paPixelShader[shid].id == shid)
6600	{
6601	pShader = &pContext->paPixelShader[shid];
6602	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6603	AssertRC(rc);
6604	}
6605	}
6606
6607	if (pShader)
6608	{
6609	if (pShader->pShaderProgram)
6610	RTMemFree(pShader->pShaderProgram);
6611	memset(pShader, 0, sizeof(*pShader));
6612	pShader->id = SVGA3D_INVALID_ID;
6613	}
6614	else
6615	AssertFailedReturn(VERR_INVALID_PARAMETER);
6616
6617	return VINF_SUCCESS;
6618	}
6619
6620	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6621	{
6622	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6623	AssertReturn(pState, VERR_NO_MEMORY);
6624	int rc;
6625
6626	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6627
6628	if ( !pContext
6629	&& cid < pState->cContexts
6630	&& pState->papContexts[cid]->id == cid)
6631	pContext = pState->papContexts[cid];
6632	else if (!pContext)
6633	{
6634	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6635	Log(("vmsvga3dShaderSet invalid context id!\n"));
6636	return VERR_INVALID_PARAMETER;
6637	}
6638	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6639
6640	if (type == SVGA3D_SHADERTYPE_VS)
6641	{
6642	/* Save for vm state save/restore. */
6643	pContext->state.shidVertex = shid;
6644	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6645
6646	if ( shid < pContext->cVertexShaders
6647	&& pContext->paVertexShader[shid].id == shid)
6648	{
6649	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6650	Assert(type == pShader->type);
6651
6652	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6653	AssertRCReturn(rc, rc);
6654	}
6655	else
6656	if (shid == SVGA_ID_INVALID)
6657	{
6658	/* Unselect shader. */
6659	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6660	AssertRCReturn(rc, rc);
6661	}
6662	else
6663	AssertFailedReturn(VERR_INVALID_PARAMETER);
6664	}
6665	else
6666	{
6667	/* Save for vm state save/restore. */
6668	pContext->state.shidPixel = shid;
6669	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6670
6671	Assert(type == SVGA3D_SHADERTYPE_PS);
6672	if ( shid < pContext->cPixelShaders
6673	&& pContext->paPixelShader[shid].id == shid)
6674	{
6675	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6676	Assert(type == pShader->type);
6677
6678	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6679	AssertRCReturn(rc, rc);
6680	}
6681	else
6682	if (shid == SVGA_ID_INVALID)
6683	{
6684	/* Unselect shader. */
6685	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6686	AssertRCReturn(rc, rc);
6687	}
6688	else
6689	AssertFailedReturn(VERR_INVALID_PARAMETER);
6690	}
6691
6692	return VINF_SUCCESS;
6693	}
6694
6695	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6696	{
6697	PVMSVGA3DCONTEXT pContext;
6698	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6699	AssertReturn(pState, VERR_NO_MEMORY);
6700	int rc;
6701
6702	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6703
6704	if ( cid >= pState->cContexts
6705	\|\| pState->papContexts[cid]->id != cid)
6706	{
6707	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6708	return VERR_INVALID_PARAMETER;
6709	}
6710	pContext = pState->papContexts[cid];
6711	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6712
6713	for (uint32_t i = 0; i < cRegisters; i++)
6714	{
6715	#ifdef LOG_ENABLED
6716	switch (ctype)
6717	{
6718	case SVGA3D_CONST_TYPE_FLOAT:
6719	{
6720	float pValuesF = (float )pValues;
6721	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)));
6722	break;
6723	}
6724
6725	case SVGA3D_CONST_TYPE_INT:
6726	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6727	break;
6728
6729	case SVGA3D_CONST_TYPE_BOOL:
6730	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6731	break;
6732	}
6733	#endif
6734	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6735	}
6736
6737	switch (type)
6738	{
6739	case SVGA3D_SHADERTYPE_VS:
6740	switch (ctype)
6741	{
6742	case SVGA3D_CONST_TYPE_FLOAT:
6743	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6744	break;
6745
6746	case SVGA3D_CONST_TYPE_INT:
6747	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6748	break;
6749
6750	case SVGA3D_CONST_TYPE_BOOL:
6751	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6752	break;
6753
6754	default:
6755	AssertFailedReturn(VERR_INVALID_PARAMETER);
6756	}
6757	AssertRCReturn(rc, rc);
6758	break;
6759
6760	case SVGA3D_SHADERTYPE_PS:
6761	switch (ctype)
6762	{
6763	case SVGA3D_CONST_TYPE_FLOAT:
6764	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6765	break;
6766
6767	case SVGA3D_CONST_TYPE_INT:
6768	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6769	break;
6770
6771	case SVGA3D_CONST_TYPE_BOOL:
6772	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6773	break;
6774
6775	default:
6776	AssertFailedReturn(VERR_INVALID_PARAMETER);
6777	}
6778	AssertRCReturn(rc, rc);
6779	break;
6780
6781	default:
6782	AssertFailedReturn(VERR_INVALID_PARAMETER);
6783	}
6784
6785	return VINF_SUCCESS;
6786	}
6787
6788	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6789	{
6790	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6791	GLuint idQuery = 0;
6792	pState->ext.glGenQueries(1, &idQuery);
6793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6794	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6795	pContext->occlusion.idQuery = idQuery;
6796	return VINF_SUCCESS;
6797	}
6798
6799	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6800	{
6801	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6802	if (pContext->occlusion.idQuery)
6803	{
6804	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6805	}
6806	return VINF_SUCCESS;
6807	}
6808
6809	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6810	{
6811	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6812	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6813	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6814	return VINF_SUCCESS;
6815	}
6816
6817	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6818	{
6819	RT_NOREF(pContext);
6820	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6821	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6822	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6823	return VINF_SUCCESS;
6824	}
6825
6826	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6827	{
6828	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6829	GLuint pixels = 0;
6830	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6831	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6832
6833	*pu32Pixels = (uint32_t)pixels;
6834	return VINF_SUCCESS;
6835	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 73194

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