DevVGA-SVGA3d-ogl.cpp@ 69496

最後變更在這個檔案從69496是 69418,由 vboxsync 提交於 7 年前
Devices/Graphics: VMSVGA occlusion queries (build fix)
屬性 svn:eol-style 設為 `native` 屬性 svn:keywords 設為 `Author Date Id Revision`
檔案大小: 263.0 KB

行
1	/* $Id: DevVGA-SVGA3d-ogl.cpp 69418 2017-10-27 10:08:46Z 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.alldomusa.eu.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#define MANUAL_FLIP_SURFACE_DATA
91	/* Enable to render the result of DrawPrimitive in a seperate window. */
92	//#define DEBUG_GFX_WINDOW
93
94
95	/**
96	* Macro for doing something and then checking for errors during initialization.
97	* Uses AssertLogRelMsg.
98	*/
99	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
100	do \
101	{ \
102	a_Expr; \
103	GLenum iGlError = glGetError(); \
104	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
105	} while (0)
106
107	/**
108	* Macro for doing something and then checking for errors during initialization,
109	* doing the same in the other context when enabled.
110	*
111	* This will try both profiles in dual profile builds. Caller must be in the
112	* default context.
113	*
114	* Uses AssertLogRelMsg to indicate trouble.
115	*/
116	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
117	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
118	do \
119	{ \
120	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
121	a_Expr; \
122	GLenum iGlError = glGetError(); \
123	if (iGlError != GL_NO_ERROR) \
124	{ \
125	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError2 = glGetError(); \
129	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
130	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
131	} \
132	} while (0)
133	#else
134	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
135	#endif
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	/* Define the default light parameters as specified by MSDN. */
142	/** @todo move out; fetched from Wine */
143	const SVGA3dLightData vmsvga3d_default_light =
144	{
145	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
146	false, /* inWorldSpace */
147	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
149	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
150	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
151	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
152	0.0f, /* range */
153	0.0f, /* falloff */
154	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
155	0.0f, /* theta */
156	0.0f /* phi */
157	};
158
159
160	/*********************************************************************************************************************************
161	* Internal Functions *
162	*********************************************************************************************************************************/
163	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
164	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
165
166	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
167	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
168
169
170	/**
171	* Checks if the given OpenGL extension is supported.
172	*
173	* @returns true if supported, false if not.
174	* @param pState The VMSVGA3d state.
175	* @param rsMinGLVersion The OpenGL version that introduced this feature
176	* into the core.
177	* @param pszWantedExtension The name of the OpenGL extension we want padded
178	* with one space at each end.
179	* @remarks Init time only.
180	*/
181	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
182	{
183	RT_NOREF(rsMinGLVersion);
184	/* check padding. */
185	Assert(pszWantedExtension[0] == ' ');
186	Assert(pszWantedExtension[1] != ' ');
187	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
188
189	/* Look it up. */
190	bool fRet = false;
191	if (strstr(pState->pszExtensions, pszWantedExtension))
192	fRet = true;
193
194	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( rsMinGLVersion == 0.0
197	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
205	#endif
206	return fRet;
207	}
208
209
210	/**
211	* Outputs GL_EXTENSIONS list to the release log.
212	*/
213	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
214	{
215	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
216	bool fBuffered = RTLogRelSetBuffering(true);
217
218	/*
219	* Determin the column widths first.
220	*/
221	size_t acchWidths[4] = { 1, 1, 1, 1 };
222	uint32_t i;
223	const char *psz = pszExtensions;
224	for (i = 0; ; i++)
225	{
226	while (*psz == ' ')
227	psz++;
228	if (!*psz)
229	break;
230
231	const char *pszEnd = strchr(psz, ' ');
232	AssertBreak(pszEnd);
233	size_t cch = pszEnd - psz;
234
235	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
236	if (acchWidths[iColumn] < cch)
237	acchWidths[iColumn] = cch;
238
239	psz = pszEnd;
240	}
241
242	/*
243	* Output it.
244	*/
245	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
246	psz = pszExtensions;
247	for (i = 0; ; i++)
248	{
249	while (*psz == ' ')
250	psz++;
251	if (!*psz)
252	break;
253
254	const char *pszEnd = strchr(psz, ' ');
255	AssertBreak(pszEnd);
256	size_t cch = pszEnd - psz;
257
258	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
259	if (iColumn == 0)
260	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
261	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
262	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
263	else
264	LogRel((" %.*s", cch, psz));
265
266	psz = pszEnd;
267	}
268
269	RTLogRelSetBuffering(fBuffered);
270	LogRel(("\n"));
271	}
272
273	/**
274	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
275	* @a ppszExtensions.
276	*
277	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
278	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
279	* @param fGLProfileVersion The OpenGL profile version.
280	*/
281	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
282	{
283	int rc;
284	*ppszExtensions = NULL;
285
286	/*
287	* Try the old glGetString interface first.
288	*/
289	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
290	if (pszExtensions)
291	{
292	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
293	AssertLogRelRCReturn(rc, rc);
294	}
295	else
296	{
297	/*
298	* The new interface where each extension string is retrieved separately.
299	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
300	* the above GL_EXTENSIONS error lingers on darwin. sucks.
301	*/
302	#ifndef GL_NUM_EXTENSIONS
303	# define GL_NUM_EXTENSIONS 0x821D
304	#endif
305	GLint cExtensions = 1024;
306	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
307	Assert(cExtensions != 1024);
308
309	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
310	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
311
312	rc = RTStrAAppend(ppszExtensions, " ");
313	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
314	{
315	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
316	if (pszExt)
317	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
318	}
319	AssertRCReturn(rc, rc);
320	}
321
322	#if 1
323	/*
324	* Add extensions promoted into the core OpenGL profile.
325	*/
326	static const struct
327	{
328	float fGLVersion;
329	const char *pszzExtensions;
330	} s_aPromotedExtensions[] =
331	{
332	{
333	1.1f,
334	" GL_EXT_vertex_array \0"
335	" GL_EXT_polygon_offset \0"
336	" GL_EXT_blend_logic_op \0"
337	" GL_EXT_texture \0"
338	" GL_EXT_copy_texture \0"
339	" GL_EXT_subtexture \0"
340	" GL_EXT_texture_object \0"
341	" GL_ARB_framebuffer_object \0"
342	" GL_ARB_map_buffer_range \0"
343	" GL_ARB_vertex_array_object \0"
344	"\0"
345	},
346	{
347	1.2f,
348	" EXT_texture3D \0"
349	" EXT_bgra \0"
350	" EXT_packed_pixels \0"
351	" EXT_rescale_normal \0"
352	" EXT_separate_specular_color \0"
353	" SGIS_texture_edge_clamp \0"
354	" SGIS_texture_lod \0"
355	" EXT_draw_range_elements \0"
356	"\0"
357	},
358	{
359	1.3f,
360	" GL_ARB_texture_compression \0"
361	" GL_ARB_texture_cube_map \0"
362	" GL_ARB_multisample \0"
363	" GL_ARB_multitexture \0"
364	" GL_ARB_texture_env_add \0"
365	" GL_ARB_texture_env_combine \0"
366	" GL_ARB_texture_env_dot3 \0"
367	" GL_ARB_texture_border_clamp \0"
368	" GL_ARB_transpose_matrix \0"
369	"\0"
370	},
371	{
372	1.5f,
373	" GL_SGIS_generate_mipmap \0"
374	/" GL_NV_blend_equare \0"/
375	" GL_ARB_depth_texture \0"
376	" GL_ARB_shadow \0"
377	" GL_EXT_fog_coord \0"
378	" GL_EXT_multi_draw_arrays \0"
379	" GL_ARB_point_parameters \0"
380	" GL_EXT_secondary_color \0"
381	" GL_EXT_blend_func_separate \0"
382	" GL_EXT_stencil_wrap \0"
383	" GL_ARB_texture_env_crossbar \0"
384	" GL_EXT_texture_lod_bias \0"
385	" GL_ARB_texture_mirrored_repeat \0"
386	" GL_ARB_window_pos \0"
387	"\0"
388	},
389	{
390	1.6f,
391	" GL_ARB_vertex_buffer_object \0"
392	" GL_ARB_occlusion_query \0"
393	" GL_EXT_shadow_funcs \0"
394	},
395	{
396	2.0f,
397	" GL_ARB_shader_objects \0" /??/
398	" GL_ARB_vertex_shader \0" /??/
399	" GL_ARB_fragment_shader \0" /??/
400	" GL_ARB_shading_language_100 \0" /??/
401	" GL_ARB_draw_buffers \0"
402	" GL_ARB_texture_non_power_of_two \0"
403	" GL_ARB_point_sprite \0"
404	" GL_ATI_separate_stencil \0"
405	" GL_EXT_stencil_two_side \0"
406	"\0"
407	},
408	{
409	2.1f,
410	" GL_ARB_pixel_buffer_object \0"
411	" GL_EXT_texture_sRGB \0"
412	"\0"
413	},
414	{
415	3.0f,
416	" GL_ARB_framebuffer_object \0"
417	" GL_ARB_map_buffer_range \0"
418	" GL_ARB_vertex_array_object \0"
419	"\0"
420	},
421	{
422	3.1f,
423	" GL_ARB_copy_buffer \0"
424	" GL_ARB_uniform_buffer_object \0"
425	"\0"
426	},
427	{
428	3.2f,
429	" GL_ARB_vertex_array_bgra \0"
430	" GL_ARB_draw_elements_base_vertex \0"
431	" GL_ARB_fragment_coord_conventions \0"
432	" GL_ARB_provoking_vertex \0"
433	" GL_ARB_seamless_cube_map \0"
434	" GL_ARB_texture_multisample \0"
435	" GL_ARB_depth_clamp \0"
436	" GL_ARB_sync \0"
437	" GL_ARB_geometry_shader4 \0" /??/
438	"\0"
439	},
440	{
441	3.3f,
442	" GL_ARB_blend_func_extended \0"
443	" GL_ARB_sampler_objects \0"
444	" GL_ARB_explicit_attrib_location \0"
445	" GL_ARB_occlusion_query2 \0"
446	" GL_ARB_shader_bit_encoding \0"
447	" GL_ARB_texture_rgb10_a2ui \0"
448	" GL_ARB_texture_swizzle \0"
449	" GL_ARB_timer_query \0"
450	" GL_ARB_vertex_type_2_10_10_10_rev \0"
451	"\0"
452	},
453	{
454	4.0f,
455	" GL_ARB_texture_query_lod \0"
456	" GL_ARB_draw_indirect \0"
457	" GL_ARB_gpu_shader5 \0"
458	" GL_ARB_gpu_shader_fp64 \0"
459	" GL_ARB_shader_subroutine \0"
460	" GL_ARB_tessellation_shader \0"
461	" GL_ARB_texture_buffer_object_rgb32 \0"
462	" GL_ARB_texture_cube_map_array \0"
463	" GL_ARB_texture_gather \0"
464	" GL_ARB_transform_feedback2 \0"
465	" GL_ARB_transform_feedback3 \0"
466	"\0"
467	},
468	{
469	4.1f,
470	" GL_ARB_ES2_compatibility \0"
471	" GL_ARB_get_program_binary \0"
472	" GL_ARB_separate_shader_objects \0"
473	" GL_ARB_shader_precision \0"
474	" GL_ARB_vertex_attrib_64bit \0"
475	" GL_ARB_viewport_array \0"
476	"\0"
477	}
478	};
479
480	uint32_t cPromoted = 0;
481	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
482	{
483	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
484	while (*pszExt)
485	{
486	# ifdef VBOX_STRICT
487	size_t cchExt = strlen(pszExt);
488	Assert(cchExt > 3);
489	Assert(pszExt[0] == ' ');
490	Assert(pszExt[1] != ' ');
491	Assert(pszExt[cchExt - 2] != ' ');
492	Assert(pszExt[cchExt - 1] == ' ');
493	# endif
494
495	if (strstr(*ppszExtensions, pszExt) == NULL)
496	{
497	if (cPromoted++ == 0)
498	{
499	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
500	AssertRCReturn(rc, rc);
501	}
502
503	rc = RTStrAAppend(ppszExtensions, pszExt);
504	AssertRCReturn(rc, rc);
505	}
506
507	pszExt = strchr(pszExt, '\0') + 1;
508	}
509	}
510	#endif
511
512	return VINF_SUCCESS;
513	}
514
515	/**
516	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
517	*/
518	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
519	{
520	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
521	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
523	#else
524	NOREF(pThis);
525	NOREF(fOtherProfile);
526	#endif
527	}
528
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
532	*/
533	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
534	char *pszBuf, size_t cbBuf, bool fOtherProfile)
535	{
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
538	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
539	while (*pszCur == ' ')
540	pszCur++;
541	if (!*pszCur)
542	return false;
543
544	const char *pszEnd = strchr(pszCur, ' ');
545	AssertReturn(pszEnd, false);
546	size_t cch = pszEnd - pszCur;
547	if (cch < cbBuf)
548	{
549	memcpy(pszBuf, pszCur, cch);
550	pszBuf[cch] = '\0';
551	}
552	else if (cbBuf > 0)
553	{
554	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
555	pszBuf[cbBuf - 1] = '\0';
556	}
557
558	ppvEnumCtx = (void )pszEnd;
559	return true;
560	}
561
562
563	/**
564	* Initializes the VMSVGA3D state during VGA device construction.
565	*
566	* Failure are generally not fatal, 3D support will just be disabled.
567	*
568	* @returns VBox status code.
569	* @param pThis The VGA device state where svga.p3dState will be modified.
570	*/
571	int vmsvga3dInit(PVGASTATE pThis)
572	{
573	AssertCompile(GL_TRUE == 1);
574	AssertCompile(GL_FALSE == 0);
575
576	/*
577	* Load and resolve imports from the external shared libraries.
578	*/
579	RTERRINFOSTATIC ErrInfo;
580	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
581	if (RT_FAILURE(rc))
582	{
583	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
584	return rc;
585	}
586	#ifdef RT_OS_DARWIN
587	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
588	if (RT_FAILURE(rc))
589	{
590	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
591	return rc;
592	}
593	#endif
594
595	/*
596	* Allocate the state.
597	*/
598	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
599	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
600
601	#ifdef RT_OS_WINDOWS
602	/* Create event semaphore and async IO thread. */
603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
604	rc = RTSemEventCreate(&pState->WndRequestSem);
605	if (RT_SUCCESS(rc))
606	{
607	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
608	"VMSVGA3DWND");
609	if (RT_SUCCESS(rc))
610	return VINF_SUCCESS;
611
612	/* bail out. */
613	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
614	RTSemEventDestroy(pState->WndRequestSem);
615	}
616	else
617	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
618	RTMemFree(pThis->svga.p3dState);
619	pThis->svga.p3dState = NULL;
620	return rc;
621	#else
622	return VINF_SUCCESS;
623	#endif
624	}
625
626	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
627	int vmsvga3dPowerOn(PVGASTATE pThis)
628	{
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
631	PVMSVGA3DCONTEXT pContext;
632	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
633	PVMSVGA3DCONTEXT pOtherCtx;
634	#endif
635	int rc;
636
637	if (pState->rsGLVersion != 0.0)
638	return VINF_SUCCESS; /* already initialized (load state) */
639
640	/*
641	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
642	*/
643	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
644	AssertRCReturn(rc, rc);
645
646	pContext = pState->papContexts[1];
647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
648
649	LogRel(("VMSVGA3d: OpenGL version: %s\n"
650	"VMSVGA3d: OpenGL Vendor: %s\n"
651	"VMSVGA3d: OpenGL Renderer: %s\n"
652	"VMSVGA3d: OpenGL shader language version: %s\n",
653	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
654	glGetString(GL_SHADING_LANGUAGE_VERSION)));
655
656	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
657	AssertRCReturn(rc, rc);
658	vmsvga3dLogRelExtensions("", pState->pszExtensions);
659
660	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
661
662
663	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
664	/*
665	* Get the extension list for the alternative profile so we can better
666	* figure out the shader model and stuff.
667	*/
668	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
669	AssertLogRelRCReturn(rc, rc);
670	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
671
672	pOtherCtx = pState->papContexts[2];
673	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
674
675	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
676	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
677	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
678	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
679	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
680	glGetString(GL_SHADING_LANGUAGE_VERSION)));
681
682	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
683	AssertRCReturn(rc, rc);
684	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
685
686	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
687
688	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
689	#else
690	pState->pszOtherExtensions = (char *)"";
691	pState->rsOtherGLVersion = pState->rsGLVersion;
692	#endif
693
694
695	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
696	{
697	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
698	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
699	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
700	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
701	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
702	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
703	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
704	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
705	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
706	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
707	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
708	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
709	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
710	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
711	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
712	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
713	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
714	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
715	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
716	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
717	}
718	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
719	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
720	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
721	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
722	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
723	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
724	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
725	#endif
726	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
727	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
729	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
731	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
733	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
735	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
737	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
739	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
741	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
743	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
745	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
749	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
751	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
753	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
754	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
755	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
756	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
757	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
758	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
759	#endif
760	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
761	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
762
763	/* OpenGL 3.2 core */
764	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
765	{
766	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
767	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
768	}
769	else
770	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
771
772	/* OpenGL 3.2 core */
773	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
774	{
775	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
776	}
777	else
778	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
779
780	/* Extension support */
781	#if defined(RT_OS_DARWIN)
782	/** @todo OpenGL version history suggest this, verify... */
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
784	#else
785	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
786	#endif
787
788	#define GLGETPROC(ProcType, ProcName) do { \
789	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
790	AssertMsgReturn(pState->ext.ProcName, (#ProcName " missing"), VERR_NOT_IMPLEMENTED); \
791	} while(0)
792	#define GLGETPROCOPT(ProcType, ProcName) do { \
793	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
794	AssertMsg(pState->ext.ProcName, (#ProcName " missing (optional)")); \
795	} while(0)
796
797	GLGETPROCOPT(PFNGLGENQUERIESPROC , glGenQueries);
798	GLGETPROCOPT(PFNGLDELETEQUERIESPROC , glDeleteQueries);
799	GLGETPROCOPT(PFNGLBEGINQUERYPROC , glBeginQuery);
800	GLGETPROCOPT(PFNGLENDQUERYPROC , glEndQuery);
801	GLGETPROCOPT(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv);
802
803	#undef GLGETPROCOPT
804	#undef GLGETPROC
805	/*
806	* Initialize the capabilities with sensible defaults.
807	*/
808	pState->caps.maxActiveLights = 1;
809	pState->caps.maxTextureBufferSize = 65536;
810	pState->caps.maxTextures = 1;
811	pState->caps.maxClipDistances = 4;
812	pState->caps.maxColorAttachments = 1;
813	pState->caps.maxRectangleTextureSize = 2048;
814	pState->caps.maxTextureAnisotropy = 2;
815	pState->caps.maxVertexShaderInstructions = 1024;
816	pState->caps.maxFragmentShaderInstructions = 1024;
817	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
818	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
819	pState->caps.flPointSize[0] = 1;
820	pState->caps.flPointSize[1] = 1;
821
822	/*
823	* Query capabilities
824	*/
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
827	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
828	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
829	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
830	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
831	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
832	#else
833	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
834	#endif
835	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
836	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
837	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
838	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
839
840	if (pState->ext.glGetProgramivARB)
841	{
842	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
843	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
844	&pState->caps.maxFragmentShaderTemps));
845	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
846	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
847	&pState->caps.maxFragmentShaderInstructions));
848	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
849	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
850	&pState->caps.maxVertexShaderTemps));
851	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
852	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
853	&pState->caps.maxVertexShaderInstructions));
854	}
855	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
856
857	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
858	* ARB Assembly Language
859	* These are done through testing the presence of extensions. You should test them in this order:
860	* GL_NV_gpu_program4: SM 4.0 or better.
861	* GL_NV_vertex_program3: SM 3.0 or better.
862	* GL_ARB_fragment_program: SM 2.0 or better.
863	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
864	*
865	*/
866	/** @todo distinguish between vertex and pixel shaders??? */
867	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
868	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
869	if (v >= 3.30f)
870	{
871	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
872	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
873	}
874	else
875	if (v >= 1.20f)
876	{
877	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
878	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
879	}
880	else
881	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
882	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
883	{
884	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
885	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
886	}
887	else
888	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
889	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
890	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
891	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
892	)
893	{
894	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
895	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
896	}
897	else
898	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
899	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
900	{
901	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
902	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
903	}
904	else
905	{
906	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
907	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
908	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
909	}
910
911	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
912	{
913	/** @todo Intel drivers don't support this extension! */
914	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
915	}
916	#if 0
917	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
918	SVGA3D_DEVCAP_QUERY_TYPES = 15,
919	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
920	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
921	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
922	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
923	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
924	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
925	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
926	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
927	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
928	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
929	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
930	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
931	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
932	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
933	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
934	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
935	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
936	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
937	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
938	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
939	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
940	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
941	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
942	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
943	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
944	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
945	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
946	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
947	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
948	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
949	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
950	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
951	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
952	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
953	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
954	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
955	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
956	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
957	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
958	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
959	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
960	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
961	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
962	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
963	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
964	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
965	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
966	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
967	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
968	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
969	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
970	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
971	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
972	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
973	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
974	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
975	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
976	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
977	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
978	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
979	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
980	#endif
981
982	LogRel(("VMSVGA3d: Capabilities:\n"));
983	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
984	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
985	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
986	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
987	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
988	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
989	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
990	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
991	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
992	pState->caps.maxFragmentShaderTemps,
993	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
994	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
995	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
996	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
997
998
999	/* Initialize the shader library. */
1000	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1001	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1002	rc = ShaderInitLib(&pState->ShaderIf);
1003	AssertRC(rc);
1004
1005	/* Cleanup */
1006	rc = vmsvga3dContextDestroy(pThis, 1);
1007	AssertRC(rc);
1008	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1009	rc = vmsvga3dContextDestroy(pThis, 2);
1010	AssertRC(rc);
1011	#endif
1012
1013	if ( pState->rsGLVersion < 3.0
1014	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1015	{
1016	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1017	return VERR_NOT_IMPLEMENTED;
1018	}
1019	if ( !pState->ext.glIsRenderbuffer
1020	\|\| !pState->ext.glBindRenderbuffer
1021	\|\| !pState->ext.glDeleteRenderbuffers
1022	\|\| !pState->ext.glGenRenderbuffers
1023	\|\| !pState->ext.glRenderbufferStorage
1024	\|\| !pState->ext.glGetRenderbufferParameteriv
1025	\|\| !pState->ext.glIsFramebuffer
1026	\|\| !pState->ext.glBindFramebuffer
1027	\|\| !pState->ext.glDeleteFramebuffers
1028	\|\| !pState->ext.glGenFramebuffers
1029	\|\| !pState->ext.glCheckFramebufferStatus
1030	\|\| !pState->ext.glFramebufferTexture1D
1031	\|\| !pState->ext.glFramebufferTexture2D
1032	\|\| !pState->ext.glFramebufferTexture3D
1033	\|\| !pState->ext.glFramebufferRenderbuffer
1034	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1035	\|\| !pState->ext.glGenerateMipmap
1036	\|\| !pState->ext.glBlitFramebuffer
1037	\|\| !pState->ext.glRenderbufferStorageMultisample
1038	\|\| !pState->ext.glFramebufferTextureLayer)
1039	{
1040	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1041	return VERR_NOT_IMPLEMENTED;
1042	}
1043
1044	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1045	pState->idTestContext = SVGA_ID_INVALID;
1046	#endif
1047	return VINF_SUCCESS;
1048	}
1049
1050	int vmsvga3dReset(PVGASTATE pThis)
1051	{
1052	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1053	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1054
1055	/* Destroy all leftover surfaces. */
1056	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1057	{
1058	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1059	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1060	}
1061
1062	/* Destroy all leftover contexts. */
1063	for (uint32_t i = 0; i < pState->cContexts; i++)
1064	{
1065	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1066	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1067	}
1068
1069	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1070	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1071
1072	return VINF_SUCCESS;
1073	}
1074
1075	int vmsvga3dTerminate(PVGASTATE pThis)
1076	{
1077	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1078	AssertReturn(pState, VERR_WRONG_ORDER);
1079	int rc;
1080
1081	rc = vmsvga3dReset(pThis);
1082	AssertRCReturn(rc, rc);
1083
1084	/* Terminate the shader library. */
1085	rc = ShaderDestroyLib();
1086	AssertRC(rc);
1087
1088	#ifdef RT_OS_WINDOWS
1089	/* Terminate the window creation thread. */
1090	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1091	AssertRCReturn(rc, rc);
1092
1093	RTSemEventDestroy(pState->WndRequestSem);
1094	#elif defined(RT_OS_DARWIN)
1095
1096	#elif defined(RT_OS_LINUX)
1097	/* signal to the thread that it is supposed to exit */
1098	pState->bTerminate = true;
1099	/* wait for it to terminate */
1100	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1101	AssertRC(rc);
1102	XCloseDisplay(pState->display);
1103	#endif
1104
1105	RTStrFree(pState->pszExtensions);
1106	pState->pszExtensions = NULL;
1107	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1108	RTStrFree(pState->pszOtherExtensions);
1109	#endif
1110	pState->pszOtherExtensions = NULL;
1111
1112	return VINF_SUCCESS;
1113	}
1114
1115
1116	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1117	{
1118	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1119	* redraw it. */
1120
1121	#ifdef RT_OS_DARWIN
1122	RT_NOREF(pOldViewport);
1123	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1124	if ( pState
1125	&& idScreen == 0
1126	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1127	{
1128	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1129	}
1130	#else
1131	RT_NOREF(pThis, idScreen, pOldViewport);
1132	#endif
1133	}
1134
1135
1136	/**
1137	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1138	* given surface format capability.
1139	*
1140	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1141	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1142	*
1143	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1144	* of implicit guest expectations:
1145	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1146	*/
1147	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1148	{
1149	uint32_t result = 0;
1150
1151	/** @todo missing:
1152	*
1153	* SVGA3DFORMAT_OP_PIXELSIZE
1154	*/
1155
1156	switch (idx3dCaps)
1157	{
1158	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1159	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1160	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1161	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1162	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1163	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1164	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1165	break;
1166
1167	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1168	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1169	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1170	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1171	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1172	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1173	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1174	break;
1175	}
1176
1177	/** @todo check hardware caps! */
1178	switch (idx3dCaps)
1179	{
1180	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1181	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1182	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1183	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1184	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1185	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1186	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1187	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1188	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1189	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1190	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1191	result \|= SVGA3DFORMAT_OP_TEXTURE
1192	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1193	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1194	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1195	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1196	\| SVGA3DFORMAT_OP_CUBETEXTURE
1197	\| SVGA3DFORMAT_OP_SRGBREAD
1198	\| SVGA3DFORMAT_OP_SRGBWRITE;
1199	break;
1200
1201	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1202	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1203	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1204	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1205	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1206	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1207	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1208	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1209	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1210	break;
1211
1212	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1213	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1214	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1215	result \|= SVGA3DFORMAT_OP_TEXTURE
1216	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1217	\| SVGA3DFORMAT_OP_CUBETEXTURE
1218	\| SVGA3DFORMAT_OP_SRGBREAD;
1219	break;
1220
1221	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1222	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1223	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1224	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1225	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1226	break;
1227
1228	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1229	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1230	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1231	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1232	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1233	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1234	break;
1235
1236	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1237	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1238	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1239
1240	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1241	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1242	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1243	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1244	break;
1245	}
1246	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1247
1248	return result;
1249	}
1250
1251	#if 0 /* unused */
1252	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1253	{
1254	RT_NOREF(pState3D, idx3dCaps);
1255
1256	/** @todo test this somehow */
1257	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1258
1259	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1260	return result;
1261	}
1262	#endif
1263
1264
1265	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1266	{
1267	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1268	AssertReturn(pState, VERR_NO_MEMORY);
1269	int rc = VINF_SUCCESS;
1270
1271	*pu32Val = 0;
1272
1273	/*
1274	* The capabilities access by current (2015-03-01) linux sources (gallium,
1275	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1276	* aren't access.
1277	*/
1278
1279	switch (idx3dCaps)
1280	{
1281	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1282	case SVGA3D_DEVCAP_3D:
1283	pu32Val = 1; / boolean? */
1284	break;
1285
1286	case SVGA3D_DEVCAP_MAX_LIGHTS:
1287	*pu32Val = pState->caps.maxActiveLights;
1288	break;
1289
1290	case SVGA3D_DEVCAP_MAX_TEXTURES:
1291	*pu32Val = pState->caps.maxTextures;
1292	break;
1293
1294	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1295	*pu32Val = pState->caps.maxClipDistances;
1296	break;
1297
1298	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1299	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1300	*pu32Val = pState->caps.vertexShaderVersion;
1301	break;
1302
1303	case SVGA3D_DEVCAP_VERTEX_SHADER:
1304	/* boolean? */
1305	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1306	break;
1307
1308	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1309	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1310	*pu32Val = pState->caps.fragmentShaderVersion;
1311	break;
1312
1313	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1314	/* boolean? */
1315	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1316	break;
1317
1318	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1319	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1320	/* Must be obsolete by now; surface format caps specify the same thing. */
1321	rc = VERR_INVALID_PARAMETER;
1322	break;
1323
1324	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1325	break;
1326
1327	/*
1328	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1329	* return TRUE. Even on physical hardware that does not support
1330	* these formats natively, the SVGA3D device will provide an emulation
1331	* which should be invisible to the guest OS.
1332	*/
1333	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1334	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1335	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1336	*pu32Val = 1;
1337	break;
1338
1339	case SVGA3D_DEVCAP_QUERY_TYPES:
1340	break;
1341
1342	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1343	break;
1344
1345	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1346	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1347	AssertCompile(sizeof(uint32_t) == sizeof(float));
1348	(float )pu32Val = pState->caps.flPointSize[1];
1349	break;
1350
1351	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1352	/** @todo ?? */
1353	rc = VERR_INVALID_PARAMETER;
1354	break;
1355
1356	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1357	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1358	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1359	*pu32Val = pState->caps.maxRectangleTextureSize;
1360	break;
1361
1362	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1363	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1364	//*pu32Val = pCaps->MaxVolumeExtent;
1365	break;
1366
1367	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1368	pu32Val = 32768; / hardcoded in Wine */
1369	break;
1370
1371	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1372	//*pu32Val = pCaps->MaxTextureAspectRatio;
1373	break;
1374
1375	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1376	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1377	*pu32Val = pState->caps.maxTextureAnisotropy;
1378	break;
1379
1380	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1381	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1382	pu32Val = 0xFFFFF; / hardcoded in Wine */
1383	break;
1384
1385	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1386	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1387	*pu32Val = pState->caps.maxVertexShaderInstructions;
1388	break;
1389
1390	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1391	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1392	break;
1393
1394	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1395	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1396	*pu32Val = pState->caps.maxVertexShaderTemps;
1397	break;
1398
1399	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1400	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1401	*pu32Val = pState->caps.maxFragmentShaderTemps;
1402	break;
1403
1404	case SVGA3D_DEVCAP_TEXTURE_OPS:
1405	break;
1406
1407	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1408	break;
1409
1410	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1411	break;
1412
1413	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1414	break;
1415
1416	case SVGA3D_DEVCAP_SUPERSAMPLE:
1417	break;
1418
1419	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1420	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1421	break;
1422
1423	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1424	break;
1425
1426	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1427	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1428	*pu32Val = pState->caps.maxColorAttachments;
1429	break;
1430
1431	/*
1432	* This is the maximum number of SVGA context IDs that the guest
1433	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1434	*/
1435	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1436	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1437	break;
1438
1439	/*
1440	* This is the maximum number of SVGA surface IDs that the guest
1441	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1442	*/
1443	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1444	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1445	break;
1446
1447	#if 0 /* Appeared more recently, not yet implemented. */
1448	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1449	case SVGA3D_DEVCAP_LINE_AA:
1450	break;
1451	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1452	case SVGA3D_DEVCAP_LINE_STIPPLE:
1453	break;
1454	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1455	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1456	break;
1457	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1458	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1459	break;
1460	#endif
1461
1462	/*
1463	* Supported surface formats.
1464	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1465	*/
1466	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1467	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1469	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1470	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1471	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1472	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1473	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1474	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1475	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1476	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1477	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1478	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1479	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1480	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1481	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1482	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1483	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1484	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1485	break;
1486
1487	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1488	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1489	pu32Val = 0; / apparently not supported in OpenGL */
1490	break;
1491
1492	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1493	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1494	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1495	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1496	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1497	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1498	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1499	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1500	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1501	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1502	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1503	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1504	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1505	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1506	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1507	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1508	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1509	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1510	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1511	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1512	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1513	break;
1514
1515	/* Linux: Not referenced in current sources. */
1516	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1517	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1518	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1519	rc = VERR_INVALID_PARAMETER;
1520	*pu32Val = 0;
1521	break;
1522
1523	default:
1524	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1525	rc = VERR_INVALID_PARAMETER;
1526	break;
1527	}
1528
1529	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1530	return rc;
1531	}
1532
1533	/**
1534	* Convert SVGA format value to its OpenGL equivalent
1535	*
1536	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1537	* help from wined3dformat_from_d3dformat().
1538	*/
1539	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1540	{
1541	switch (format)
1542	{
1543	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1544	pSurface->internalFormatGL = GL_RGB8;
1545	pSurface->formatGL = GL_BGRA;
1546	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1547	break;
1548	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1549	pSurface->internalFormatGL = GL_RGBA8;
1550	pSurface->formatGL = GL_BGRA;
1551	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1552	break;
1553	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1554	pSurface->internalFormatGL = GL_RGB5;
1555	pSurface->formatGL = GL_RGB;
1556	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1557	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1558	break;
1559	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1560	pSurface->internalFormatGL = GL_RGB5;
1561	pSurface->formatGL = GL_BGRA;
1562	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1563	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1564	break;
1565	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1566	pSurface->internalFormatGL = GL_RGB5_A1;
1567	pSurface->formatGL = GL_BGRA;
1568	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1569	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1570	break;
1571	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1572	pSurface->internalFormatGL = GL_RGBA4;
1573	pSurface->formatGL = GL_BGRA;
1574	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1575	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1576	break;
1577
1578	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1579	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1580	pSurface->formatGL = GL_DEPTH_COMPONENT;
1581	pSurface->typeGL = GL_UNSIGNED_INT;
1582	break;
1583	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1584	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1585	pSurface->formatGL = GL_DEPTH_COMPONENT;
1586	pSurface->typeGL = GL_UNSIGNED_SHORT;
1587	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1588	break;
1589	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1590	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1591	pSurface->formatGL = GL_DEPTH_STENCIL;
1592	pSurface->typeGL = GL_UNSIGNED_INT;
1593	break;
1594	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1595	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1596	pSurface->formatGL = GL_DEPTH_STENCIL;
1597	pSurface->typeGL = GL_UNSIGNED_SHORT;
1598	/** @todo Wine sources hints at no hw support for this, so test this one! */
1599	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1600	break;
1601	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1602	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1603	pSurface->formatGL = GL_DEPTH_COMPONENT;
1604	pSurface->typeGL = GL_UNSIGNED_INT;
1605	break;
1606
1607	/* Advanced D3D9 depth formats. */
1608	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1609	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1610	pSurface->formatGL = GL_DEPTH_COMPONENT;
1611	pSurface->typeGL = GL_FLOAT;
1612	break;
1613
1614	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1615	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1616	pSurface->formatGL = GL_DEPTH_COMPONENT;
1617	pSurface->typeGL = GL_FLOAT; /* ??? */
1618	break;
1619
1620	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1621	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1622	pSurface->formatGL = GL_DEPTH_STENCIL;
1623	pSurface->typeGL = GL_INT; /* ??? */
1624	break;
1625
1626	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1627	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1628	#if 0
1629	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1630	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1631	#else /* wine suggests: */
1632	pSurface->formatGL = GL_RGBA;
1633	pSurface->typeGL = GL_UNSIGNED_BYTE;
1634	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1635	#endif
1636	break;
1637
1638	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1639	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1640	#if 0 /** @todo this needs testing... */
1641	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1642	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1643	#else /* wine suggests: */
1644	pSurface->formatGL = GL_RGBA;
1645	pSurface->typeGL = GL_UNSIGNED_BYTE;
1646	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1647	#endif
1648	break;
1649
1650	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1651	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1652	#if 0 /** @todo this needs testing... */
1653	pSurface->formatGL = GL_RGBA_S3TC;
1654	pSurface->typeGL = GL_UNSIGNED_INT;
1655	#else /* wine suggests: */
1656	pSurface->formatGL = GL_RGBA;
1657	pSurface->typeGL = GL_UNSIGNED_BYTE;
1658	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1659	#endif
1660	break;
1661
1662	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1663	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1664	pSurface->formatGL = GL_LUMINANCE;
1665	pSurface->typeGL = GL_UNSIGNED_BYTE;
1666	break;
1667
1668	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1669	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1670	pSurface->formatGL = GL_LUMINANCE;
1671	pSurface->typeGL = GL_UNSIGNED_SHORT;
1672	break;
1673
1674	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1675	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1676	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1677	pSurface->typeGL = GL_UNSIGNED_BYTE;
1678	break;
1679
1680	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1681	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1682	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1683	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1684	break;
1685
1686	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1687	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1688	pSurface->formatGL = GL_ALPHA;
1689	pSurface->typeGL = GL_UNSIGNED_BYTE;
1690	break;
1691
1692	#if 0
1693
1694	/* Bump-map formats */
1695	case SVGA3D_BUMPU8V8:
1696	return D3DFMT_V8U8;
1697	case SVGA3D_BUMPL6V5U5:
1698	return D3DFMT_L6V5U5;
1699	case SVGA3D_BUMPX8L8V8U8:
1700	return D3DFMT_X8L8V8U8;
1701	case SVGA3D_BUMPL8V8U8:
1702	/* No corresponding D3D9 equivalent. */
1703	AssertFailedReturn(D3DFMT_UNKNOWN);
1704	/* signed bump-map formats */
1705	case SVGA3D_V8U8:
1706	return D3DFMT_V8U8;
1707	case SVGA3D_Q8W8V8U8:
1708	return D3DFMT_Q8W8V8U8;
1709	case SVGA3D_CxV8U8:
1710	return D3DFMT_CxV8U8;
1711	/* mixed bump-map formats */
1712	case SVGA3D_X8L8V8U8:
1713	return D3DFMT_X8L8V8U8;
1714	case SVGA3D_A2W10V10U10:
1715	return D3DFMT_A2W10V10U10;
1716	#endif
1717
1718	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1719	pSurface->internalFormatGL = GL_RGBA16F;
1720	pSurface->formatGL = GL_RGBA;
1721	#if 0 /* bird: wine uses half float, sounds correct to me... */
1722	pSurface->typeGL = GL_FLOAT;
1723	#else
1724	pSurface->typeGL = GL_HALF_FLOAT;
1725	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1726	#endif
1727	break;
1728
1729	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1730	pSurface->internalFormatGL = GL_RGBA32F;
1731	pSurface->formatGL = GL_RGBA;
1732	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1733	break;
1734
1735	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1736	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1737	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1738	pSurface->formatGL = GL_RGBA;
1739	#else
1740	pSurface->formatGL = GL_BGRA;
1741	#endif
1742	pSurface->typeGL = GL_UNSIGNED_INT;
1743	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1744	break;
1745
1746
1747	/* Single- and dual-component floating point formats */
1748	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1749	pSurface->internalFormatGL = GL_R16F;
1750	pSurface->formatGL = GL_RED;
1751	#if 0 /* bird: wine uses half float, sounds correct to me... */
1752	pSurface->typeGL = GL_FLOAT;
1753	#else
1754	pSurface->typeGL = GL_HALF_FLOAT;
1755	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1756	#endif
1757	break;
1758	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1759	pSurface->internalFormatGL = GL_R32F;
1760	pSurface->formatGL = GL_RG;
1761	pSurface->typeGL = GL_FLOAT;
1762	break;
1763	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1764	pSurface->internalFormatGL = GL_RG16F;
1765	pSurface->formatGL = GL_RG;
1766	#if 0 /* bird: wine uses half float, sounds correct to me... */
1767	pSurface->typeGL = GL_FLOAT;
1768	#else
1769	pSurface->typeGL = GL_HALF_FLOAT;
1770	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1771	#endif
1772	break;
1773	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1774	pSurface->internalFormatGL = GL_RG32F;
1775	pSurface->formatGL = GL_RG;
1776	pSurface->typeGL = GL_FLOAT;
1777	break;
1778
1779	/*
1780	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1781	* the most efficient format to use when creating new surfaces
1782	* expressly for index or vertex data.
1783	*/
1784	case SVGA3D_BUFFER:
1785	pSurface->internalFormatGL = -1;
1786	pSurface->formatGL = -1;
1787	pSurface->typeGL = -1;
1788	break;
1789
1790	#if 0
1791	return D3DFMT_UNKNOWN;
1792
1793	case SVGA3D_V16U16:
1794	return D3DFMT_V16U16;
1795	#endif
1796
1797	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1798	pSurface->internalFormatGL = GL_RG16;
1799	pSurface->formatGL = GL_RG;
1800	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1801	pSurface->typeGL = GL_UNSIGNED_INT;
1802	#else
1803	pSurface->typeGL = GL_UNSIGNED_SHORT;
1804	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1805	#endif
1806	break;
1807
1808	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1809	pSurface->internalFormatGL = GL_RGBA16;
1810	pSurface->formatGL = GL_RGBA;
1811	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1812	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1813	#else
1814	pSurface->typeGL = GL_UNSIGNED_SHORT;
1815	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1816	#endif
1817	break;
1818
1819	#if 0
1820	/* Packed Video formats */
1821	case SVGA3D_UYVY:
1822	return D3DFMT_UYVY;
1823	case SVGA3D_YUY2:
1824	return D3DFMT_YUY2;
1825
1826	/* Planar video formats */
1827	case SVGA3D_NV12:
1828	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1829
1830	/* Video format with alpha */
1831	case SVGA3D_AYUV:
1832	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1833
1834	case SVGA3D_BC4_UNORM:
1835	case SVGA3D_BC5_UNORM:
1836	/* Unknown; only in DX10 & 11 */
1837	break;
1838	#endif
1839	default:
1840	AssertMsgFailed(("Unsupported format %d\n", format));
1841	break;
1842	}
1843	}
1844
1845
1846	#if 0
1847	/**
1848	* Convert SVGA multi sample count value to its D3D equivalent
1849	*/
1850	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1851	{
1852	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1853	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1854
1855	if (multisampleCount > 16)
1856	return D3DMULTISAMPLE_NONE;
1857
1858	/** @todo exact same mapping as d3d? */
1859	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1860	}
1861	#endif
1862
1863	/**
1864	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1865	*
1866	* @param pState The VMSVGA3d state.
1867	* @param pSurface The surface being destroyed.
1868	*/
1869	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1870	{
1871	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1872	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1873
1874	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1875	{
1876	case SVGA3D_SURFACE_CUBEMAP:
1877	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1878	break;
1879
1880	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1881	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1882	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1883	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1884	{
1885	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1886	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1887	}
1888	break;
1889
1890	case SVGA3D_SURFACE_HINT_TEXTURE:
1891	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1892	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1893	{
1894	glDeleteTextures(1, &pSurface->oglId.texture);
1895	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1896	}
1897	break;
1898
1899	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1900	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1901	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1902	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1903	{
1904	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1905	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1906	}
1907	break;
1908
1909	default:
1910	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1911	break;
1912	}
1913	}
1914
1915
1916	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1917	{
1918	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1919	uint32_t sidSrc = src.sid;
1920	uint32_t sidDest = dest.sid;
1921	int rc = VINF_SUCCESS;
1922
1923	AssertReturn(pState, VERR_NO_MEMORY);
1924	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1925	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1926	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1927	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1928
1929	for (uint32_t i = 0; i < cCopyBoxes; i++)
1930	{
1931	SVGA3dBox destBox, srcBox;
1932
1933	srcBox.x = pBox[i].srcx;
1934	srcBox.y = pBox[i].srcy;
1935	srcBox.z = pBox[i].srcz;
1936	srcBox.w = pBox[i].w;
1937	srcBox.h = pBox[i].h;
1938	srcBox.d = pBox[i].d;
1939
1940	destBox.x = pBox[i].x;
1941	destBox.y = pBox[i].y;
1942	destBox.z = pBox[i].z;
1943	destBox.w = pBox[i].w;
1944	destBox.h = pBox[i].h;
1945	destBox.d = pBox[i].d;
1946
1947	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1948	AssertRCReturn(rc, rc);
1949	}
1950	return VINF_SUCCESS;
1951	}
1952
1953
1954	/**
1955	* Save texture unpacking parameters and loads those appropriate for the given
1956	* surface.
1957	*
1958	* @param pState The VMSVGA3D state structure.
1959	* @param pContext The active context.
1960	* @param pSurface The surface.
1961	* @param pSave Where to save stuff.
1962	*/
1963	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1964	PVMSVGAPACKPARAMS pSave)
1965	{
1966	RT_NOREF(pState);
1967
1968	/*
1969	* Save (ignore errors, setting the defaults we want and avoids restore).
1970	*/
1971	pSave->iAlignment = 1;
1972	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1973	pSave->cxRow = 0;
1974	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1975
1976	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1977	pSave->cyImage = 0;
1978	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1979	Assert(pSave->cyImage == 0);
1980
1981	pSave->fSwapBytes = GL_FALSE;
1982	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1983	Assert(pSave->fSwapBytes == GL_FALSE);
1984
1985	pSave->fLsbFirst = GL_FALSE;
1986	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1987	Assert(pSave->fLsbFirst == GL_FALSE);
1988
1989	pSave->cSkipRows = 0;
1990	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1991	Assert(pSave->cSkipRows == 0);
1992
1993	pSave->cSkipPixels = 0;
1994	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1995	Assert(pSave->cSkipPixels == 0);
1996
1997	pSave->cSkipImages = 0;
1998	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1999	Assert(pSave->cSkipImages == 0);
2000
2001	VMSVGA3D_CLEAR_GL_ERRORS();
2002	#endif
2003
2004	/*
2005	* Setup unpack.
2006	*
2007	* Note! We use 1 as alignment here because we currently don't do any
2008	* aligning of line pitches anywhere.
2009	*/
2010	NOREF(pSurface);
2011	if (pSave->iAlignment != 1)
2012	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2013	if (pSave->cxRow != 0)
2014	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2015	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2016	if (pSave->cyImage != 0)
2017	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2018	if (pSave->fSwapBytes != 0)
2019	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2020	if (pSave->fLsbFirst != 0)
2021	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2022	if (pSave->cSkipRows != 0)
2023	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2024	if (pSave->cSkipPixels != 0)
2025	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2026	if (pSave->cSkipImages != 0)
2027	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2028	#endif
2029	}
2030
2031
2032	/**
2033	* Restores texture unpacking parameters.
2034	*
2035	* @param pState The VMSVGA3D state structure.
2036	* @param pContext The active context.
2037	* @param pSurface The surface.
2038	* @param pSave Where stuff was saved.
2039	*/
2040	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2041	PCVMSVGAPACKPARAMS pSave)
2042	{
2043	RT_NOREF(pState, pSurface);
2044
2045	if (pSave->iAlignment != 1)
2046	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2047	if (pSave->cxRow != 0)
2048	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2049	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2050	if (pSave->cyImage != 0)
2051	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2052	if (pSave->fSwapBytes != 0)
2053	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2054	if (pSave->fLsbFirst != 0)
2055	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2056	if (pSave->cSkipRows != 0)
2057	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2058	if (pSave->cSkipPixels != 0)
2059	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2060	if (pSave->cSkipImages != 0)
2061	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2062	#endif
2063	}
2064
2065
2066	/**
2067	* Create D3D/OpenGL texture object for the specified surface.
2068	*
2069	* Surfaces are created when needed.
2070	*
2071	* @param pState The VMSVGA3d state.
2072	* @param pContext The context.
2073	* @param idAssociatedContext Probably the same as pContext->id.
2074	* @param pSurface The surface to create the texture for.
2075	*/
2076	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2077	PVMSVGA3DSURFACE pSurface)
2078	{
2079	RT_NOREF(idAssociatedContext);
2080	GLint activeTexture = 0;
2081	uint32_t idPrevCtx = pState->idActiveContext;
2082	pContext = &pState->SharedCtx;
2083	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2084
2085	glGenTextures(1, &pSurface->oglId.texture);
2086	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2087	/** @todo Set the mip map generation filter settings. */
2088
2089	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2090	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2091
2092	/* Must bind texture to the current context in order to change it. */
2093	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2094	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2095
2096	/* Set the unpacking parameters. */
2097	VMSVGAPACKPARAMS SavedParams;
2098	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2099
2100	/* Set the mipmap base and max level paramters. */
2101	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2102	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2103	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2104	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2105
2106	if (pSurface->fDirty)
2107	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2108
2109	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2110	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2111	{
2112	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2113	exposing random host memory to the guest and helps a with the fedora 21 surface
2114	corruption issues (launchpad, background, search field, login). */
2115	if (pSurface->pMipmapLevels[i].fDirty)
2116	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2117
2118	glTexImage2D(GL_TEXTURE_2D,
2119	i,
2120	pSurface->internalFormatGL,
2121	pSurface->pMipmapLevels[i].mipmapSize.width,
2122	pSurface->pMipmapLevels[i].mipmapSize.height,
2123	0,
2124	pSurface->formatGL,
2125	pSurface->typeGL,
2126	pSurface->pMipmapLevels[i].pSurfaceData);
2127
2128	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2129
2130	pSurface->pMipmapLevels[i].fDirty = false;
2131	}
2132	pSurface->fDirty = false;
2133
2134	/* Restore unpacking parameters. */
2135	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2136
2137	/* Restore the old active texture. */
2138	glBindTexture(GL_TEXTURE_2D, activeTexture);
2139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2140
2141	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2142
2143	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2144	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2145	return VINF_SUCCESS;
2146	}
2147
2148
2149	/**
2150	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2151	*
2152	* @returns VBox status code.
2153	* @param pThis The VGA device instance.
2154	* @param pState The VMSVGA3d state.
2155	* @param pDstSurface The destination host surface.
2156	* @param uDstFace The destination face (valid).
2157	* @param uDstMipmap The destination mipmap level (valid).
2158	* @param pDstBox The destination box.
2159	* @param pSrcSurface The source host surface.
2160	* @param uSrcFace The destination face (valid).
2161	* @param uSrcMipmap The source mimap level (valid).
2162	* @param pSrcBox The source box.
2163	* @param enmMode The strecht blt mode .
2164	* @param pContext The VMSVGA3d context (already current for OGL).
2165	*/
2166	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2167	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2168	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2169	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2170	{
2171	RT_NOREF(pThis);
2172	RT_NOREF2(uDstFace, uSrcFace); /// @todo
2173
2174	/* Activate the read and draw framebuffer objects. */
2175	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2176	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2177	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2179
2180	/* Bind the source and destination objects to the right place. */
2181	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2182	pSrcSurface->oglId.texture, uSrcMipmap);
2183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2184	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2185	pDstSurface->oglId.texture, uDstMipmap);
2186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2187
2188	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n", pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2189	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2190	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2191
2192	pState->ext.glBlitFramebuffer(pSrcBox->x,
2193	#ifdef MANUAL_FLIP_SURFACE_DATA
2194	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2195	#else
2196	pSrcBox->y,
2197	#endif
2198	pSrcBox->x + pSrcBox->w, /* exclusive. */
2199	#ifdef MANUAL_FLIP_SURFACE_DATA
2200	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2201	#else
2202	pSrcBox->y + pSrcBox->h,
2203	#endif
2204	pDstBox->x,
2205	#ifdef MANUAL_FLIP_SURFACE_DATA
2206	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2207	#else
2208	pDstBox->y,
2209	#endif
2210	pDstBox->x + pDstBox->w, /* exclusive. */
2211	#ifdef MANUAL_FLIP_SURFACE_DATA
2212	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2213	#else
2214	pDstBox->y + pDstBox->h,
2215	#endif
2216	GL_COLOR_BUFFER_BIT,
2217	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2218	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2219
2220	/* Reset the frame buffer association */
2221	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2222	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2223
2224	return VINF_SUCCESS;
2225	}
2226
2227	/**
2228	* Save texture packing parameters and loads those appropriate for the given
2229	* surface.
2230	*
2231	* @param pState The VMSVGA3D state structure.
2232	* @param pContext The active context.
2233	* @param pSurface The surface.
2234	* @param pSave Where to save stuff.
2235	*/
2236	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2237	PVMSVGAPACKPARAMS pSave)
2238	{
2239	RT_NOREF(pState);
2240	/*
2241	* Save (ignore errors, setting the defaults we want and avoids restore).
2242	*/
2243	pSave->iAlignment = 1;
2244	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2245	pSave->cxRow = 0;
2246	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2247
2248	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2249	pSave->cyImage = 0;
2250	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2251	Assert(pSave->cyImage == 0);
2252
2253	pSave->fSwapBytes = GL_FALSE;
2254	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2255	Assert(pSave->fSwapBytes == GL_FALSE);
2256
2257	pSave->fLsbFirst = GL_FALSE;
2258	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2259	Assert(pSave->fLsbFirst == GL_FALSE);
2260
2261	pSave->cSkipRows = 0;
2262	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2263	Assert(pSave->cSkipRows == 0);
2264
2265	pSave->cSkipPixels = 0;
2266	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2267	Assert(pSave->cSkipPixels == 0);
2268
2269	pSave->cSkipImages = 0;
2270	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2271	Assert(pSave->cSkipImages == 0);
2272
2273	VMSVGA3D_CLEAR_GL_ERRORS();
2274	#endif
2275
2276	/*
2277	* Setup unpack.
2278	*
2279	* Note! We use 1 as alignment here because we currently don't do any
2280	* aligning of line pitches anywhere.
2281	*/
2282	NOREF(pSurface);
2283	if (pSave->iAlignment != 1)
2284	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2285	if (pSave->cxRow != 0)
2286	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2287	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2288	if (pSave->cyImage != 0)
2289	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2290	if (pSave->fSwapBytes != 0)
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2292	if (pSave->fLsbFirst != 0)
2293	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2294	if (pSave->cSkipRows != 0)
2295	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2296	if (pSave->cSkipPixels != 0)
2297	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2298	if (pSave->cSkipImages != 0)
2299	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2300	#endif
2301	}
2302
2303
2304	/**
2305	* Restores texture packing parameters.
2306	*
2307	* @param pState The VMSVGA3D state structure.
2308	* @param pContext The active context.
2309	* @param pSurface The surface.
2310	* @param pSave Where stuff was saved.
2311	*/
2312	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2313	PCVMSVGAPACKPARAMS pSave)
2314	{
2315	RT_NOREF(pState, pSurface);
2316	if (pSave->iAlignment != 1)
2317	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2318	if (pSave->cxRow != 0)
2319	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2320	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2321	if (pSave->cyImage != 0)
2322	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2323	if (pSave->fSwapBytes != 0)
2324	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2325	if (pSave->fLsbFirst != 0)
2326	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2327	if (pSave->cSkipRows != 0)
2328	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2329	if (pSave->cSkipPixels != 0)
2330	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2331	if (pSave->cSkipImages != 0)
2332	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2333	#endif
2334	}
2335
2336
2337	/**
2338	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2339	*
2340	* @returns Failure status code or @a rc.
2341	* @param pThis The VGA device instance data.
2342	* @param pState The VMSVGA3d state.
2343	* @param pSurface The host surface.
2344	* @param pMipLevel Mipmap level. The caller knows it already.
2345	* @param uHostFace The host face (valid).
2346	* @param uHostMipmap The host mipmap level (valid).
2347	* @param GuestPtr The guest pointer.
2348	* @param cbGuestPitch The guest pitch.
2349	* @param transfer The transfer direction.
2350	* @param pBox The box to copy.
2351	* @param pContext The context (for OpenGL).
2352	* @param rc The current rc for all boxes.
2353	* @param iBox The current box number (for Direct 3D).
2354	*/
2355	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2356	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2357	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2358	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2359	{
2360	RT_NOREF(iBox);
2361	RT_NOREF(uHostFace); /// @todo
2362
2363	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2364	{
2365	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2366	case SVGA3D_SURFACE_HINT_TEXTURE:
2367	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2368	{
2369	uint32_t cbSurfacePitch;
2370	uint8_t pDoubleBuffer, pBufferStart;
2371	unsigned uDestOffset = 0;
2372
2373	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2374	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2375
2376	if (transfer == SVGA3D_READ_HOST_VRAM)
2377	{
2378	GLint activeTexture;
2379
2380	/* Must bind texture to the current context in order to read it. */
2381	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2382	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2383
2384	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2385	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2386
2387	/* Set row length and alignment of the input data. */
2388	VMSVGAPACKPARAMS SavedParams;
2389	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2390
2391	glGetTexImage(GL_TEXTURE_2D,
2392	uHostMipmap,
2393	pSurface->formatGL,
2394	pSurface->typeGL,
2395	pDoubleBuffer);
2396	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2397
2398	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2399
2400	/* Restore the old active texture. */
2401	glBindTexture(GL_TEXTURE_2D, activeTexture);
2402	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2403
2404	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2405	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2406	<= pMipLevel->cbSurface,
2407	RTMemFree(pDoubleBuffer),
2408	VERR_INTERNAL_ERROR);
2409
2410	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2411
2412	#ifdef MANUAL_FLIP_SURFACE_DATA
2413	pBufferStart = pDoubleBuffer
2414	+ pBox->x * pSurface->cbBlock
2415	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2416	- cbSurfacePitch; /* flip image during copy */
2417	#else
2418	pBufferStart = pDoubleBuffer + uDestOffset;
2419	#endif
2420	}
2421	else
2422	{
2423	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2424	#ifdef MANUAL_FLIP_SURFACE_DATA
2425	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2426	#else
2427	pBufferStart = pDoubleBuffer;
2428	#endif
2429	}
2430
2431	rc = vmsvgaGMRTransfer(pThis,
2432	transfer,
2433	pBufferStart,
2434	#ifdef MANUAL_FLIP_SURFACE_DATA
2435	-(int32_t)cbSurfacePitch,
2436	#else
2437	(int32_t)cbSurfacePitch,
2438	#endif
2439	GuestPtr,
2440	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch, /// @todo compressed fmts
2441	cbGuestPitch,
2442	pBox->w * pSurface->cbBlock,
2443	pBox->h);
2444	AssertRC(rc);
2445
2446	/* Update the opengl surface data. */
2447	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2448	{
2449	GLint activeTexture = 0;
2450
2451	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2452	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2453
2454	/* Must bind texture to the current context in order to change it. */
2455	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2456	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2457
2458	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2459
2460	/* Set row length and alignment of the input data. */
2461	VMSVGAPACKPARAMS SavedParams;
2462	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2463
2464	glTexSubImage2D(GL_TEXTURE_2D,
2465	uHostMipmap,
2466	pBox->x,
2467	pBox->y,
2468	pBox->w,
2469	pBox->h,
2470	pSurface->formatGL,
2471	pSurface->typeGL,
2472	pDoubleBuffer);
2473
2474	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2475
2476	/* Restore old values. */
2477	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2478
2479	/* Restore the old active texture. */
2480	glBindTexture(GL_TEXTURE_2D, activeTexture);
2481	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2482	}
2483
2484	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2485
2486	/* Free the double buffer. */
2487	RTMemFree(pDoubleBuffer);
2488	break;
2489	}
2490
2491	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2492	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2493	break;
2494
2495	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2496	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2497	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2498	{
2499	Assert(pBox->h == 1);
2500
2501	VMSVGA3D_CLEAR_GL_ERRORS();
2502	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2503	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2504	{
2505	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2506	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2507	if (RT_LIKELY(pbData != NULL))
2508	{
2509	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2510	GLint cbStrictBufSize;
2511	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2512	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2513	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2514	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2515	#endif
2516
2517	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2518	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2519	<= pMipLevel->cbSurface))
2520	{
2521	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2522	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2523	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2524	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2525
2526	rc = vmsvgaGMRTransfer(pThis,
2527	transfer,
2528	pbData + offDst,
2529	pMipLevel->cbSurfacePitch,
2530	GuestPtr,
2531	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch,
2532	cbGuestPitch,
2533	pBox->w * pSurface->cbBlock,
2534	pBox->h);
2535	AssertRC(rc);
2536
2537	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offDst));
2538	}
2539	else
2540	{
2541	AssertFailed();
2542	rc = VERR_INTERNAL_ERROR;
2543	}
2544
2545	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2547	}
2548	else
2549	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2550	}
2551	else
2552	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2553	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2554	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2555	break;
2556	}
2557
2558	default:
2559	AssertFailed();
2560	break;
2561	}
2562
2563	return rc;
2564	}
2565
2566
2567	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2568	{
2569	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2570	Log(("vmsvga3dSurfaceBlitToScreen: dest=%d (%d,%d)(%d,%d) surface=%x (face=%d, mipmap=%d) (%d,%d)(%d,%d) cRects=%d\n", dest, destRect.left, destRect.top, destRect.right, destRect.bottom, src.sid, src.face, src.mipmap, srcRect.left, srcRect.top, srcRect.right, srcRect.bottom, cRects));
2571	for (uint32_t i = 0; i < cRects; i++)
2572	{
2573	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2574	}
2575
2576	/** @todo Only screen 0 for now. */
2577	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2578	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2579	/** @todo scaling */
2580	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2581
2582	if (cRects == 0)
2583	{
2584	/* easy case; no clipping */
2585	SVGA3dCopyBox box;
2586	SVGA3dGuestImage dst;
2587
2588	box.x = destRect.left;
2589	box.y = destRect.top;
2590	box.z = 0;
2591	box.w = destRect.right - destRect.left;
2592	box.h = destRect.bottom - destRect.top;
2593	box.d = 1;
2594	box.srcx = srcRect.left;
2595	box.srcy = srcRect.top;
2596	box.srcz = 0;
2597
2598	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2599	dst.ptr.offset = 0;
2600	dst.pitch = pThis->svga.cbScanline;
2601
2602	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2603	AssertRCReturn(rc, rc);
2604
2605	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2606	return VINF_SUCCESS;
2607	}
2608	else
2609	{
2610	SVGA3dGuestImage dst;
2611	SVGA3dCopyBox box;
2612
2613	box.srcz = 0;
2614	box.z = 0;
2615	box.d = 1;
2616
2617	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2618	dst.ptr.offset = 0;
2619	dst.pitch = pThis->svga.cbScanline;
2620
2621	/** @todo merge into one SurfaceDMA call */
2622	for (uint32_t i = 0; i < cRects; i++)
2623	{
2624	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2625	box.srcx = srcRect.left + pRect[i].left;
2626	box.srcy = srcRect.top + pRect[i].top;
2627
2628	box.x = pRect[i].left + destRect.left;
2629	box.y = pRect[i].top + destRect.top;
2630	box.z = 0;
2631	box.w = pRect[i].right - pRect[i].left;
2632	box.h = pRect[i].bottom - pRect[i].top;
2633
2634	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2635	AssertRCReturn(rc, rc);
2636
2637	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2638	}
2639
2640	return VINF_SUCCESS;
2641	}
2642	}
2643
2644	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2645	{
2646	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2647	PVMSVGA3DSURFACE pSurface;
2648	int rc = VINF_SUCCESS;
2649	PVMSVGA3DCONTEXT pContext;
2650	uint32_t cid;
2651	GLint activeTexture = 0;
2652
2653	AssertReturn(pState, VERR_NO_MEMORY);
2654	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2655	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2656
2657	pSurface = pState->papSurfaces[sid];
2658
2659	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2660	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2661	pSurface->autogenFilter = filter;
2662
2663	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2664
2665	cid = SVGA3D_INVALID_ID;
2666	pContext = &pState->SharedCtx;
2667	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2668
2669	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2670	{
2671	/* Unknown surface type; turn it into a texture. */
2672	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2673	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2674	AssertRCReturn(rc, rc);
2675	}
2676	else
2677	{
2678	/** @todo new filter */
2679	AssertFailed();
2680	}
2681
2682	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2683	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2684
2685	/* Must bind texture to the current context in order to change it. */
2686	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2687	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2688
2689	/* Generate the mip maps. */
2690	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2692
2693	/* Restore the old texture. */
2694	glBindTexture(GL_TEXTURE_2D, activeTexture);
2695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2696
2697	return VINF_SUCCESS;
2698	}
2699
2700	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2701	{
2702	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2703	PVMSVGA3DSURFACE pSurface;
2704	PVMSVGA3DCONTEXT pContext;
2705	uint32_t cid;
2706
2707	AssertReturn(pState, VERR_NO_MEMORY);
2708	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2709	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2710
2711	pSurface = pState->papSurfaces[sid];
2712
2713	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2714	for (uint32_t i=0; i < cRects; i++)
2715	Log(("vmsvga3dCommandPresent: rectangle %d src=(%d,%d) (%d,%d)(%d,%d)\n", i, pRect[i].srcx, pRect[i].srcy, pRect[i].x, pRect[i].y, pRect[i].x + pRect[i].w, pRect[i].y + pRect[i].h));
2716
2717	pContext = &pState->SharedCtx;
2718	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2719	cid = pContext->id;
2720	VMSVGA3D_CLEAR_GL_ERRORS();
2721
2722	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2723	/*
2724	* Source surface different size?
2725	*/
2726	RTRECT2 srcViewPort;
2727	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2728	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2729	{
2730	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2731	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2732
2733	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2734	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2735	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2736	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2737
2738	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2739	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2740	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2741	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2742	}
2743	else
2744	{
2745	srcViewPort.x = pThis->svga.viewport.x;
2746	srcViewPort.y = pThis->svga.viewport.y;
2747	srcViewPort.cx = pThis->svga.viewport.cx;
2748	srcViewPort.cy = pThis->svga.viewport.cy;
2749	}
2750	RTRECT SrcViewPortRect;
2751	SrcViewPortRect.xLeft = srcViewPort.x;
2752	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2753	SrcViewPortRect.yBottom = srcViewPort.y;
2754	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2755	#endif
2756
2757
2758	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2759	/*
2760	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2761	*/
2762	SVGA3dCopyRect rect;
2763	uint32_t oldVShader, oldPShader;
2764	GLint oldTextureId;
2765
2766	if (cRects == 0)
2767	{
2768	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2769	rect.w = pSurface->pMipmapLevels[0].size.width;
2770	rect.h = pSurface->pMipmapLevels[0].size.height;
2771	pRect = &rect;
2772	cRects = 1;
2773	}
2774
2775	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2776
2777	#if 0
2778	glDisable(GL_CULL_FACE);
2779	glDisable(GL_BLEND);
2780	glDisable(GL_ALPHA_TEST);
2781	glDisable(GL_SCISSOR_TEST);
2782	glDisable(GL_STENCIL_TEST);
2783	glEnable(GL_DEPTH_TEST);
2784	glDepthFunc(GL_ALWAYS);
2785	glDepthMask(GL_TRUE);
2786	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2787	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2788	#endif
2789
2790	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2791
2792	oldVShader = pContext->state.shidVertex;
2793	oldPShader = pContext->state.shidPixel;
2794	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2795	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2796
2797	/* Flush shader changes. */
2798	if (pContext->pShaderContext)
2799	ShaderUpdateState(pContext->pShaderContext, 0);
2800
2801	/* Activate the read and draw framebuffer objects. */
2802	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2803	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2804
2805	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2806	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2807	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2808
2809	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2810	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2811
2812	#if 0
2813	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2814	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2815	#endif
2816
2817	/* Reset the transformation matrices. */
2818	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2819	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2820	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2821	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2822	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2823	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2824	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2825	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2826
2827	for (uint32_t i = 0; i < cRects; i++)
2828	{
2829	float left, right, top, bottom; /* Texture coordinates */
2830	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2831
2832	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2833	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2834	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2835	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2836	pRect[i].w = pThis->svga.viewport.cx;
2837	pRect[i].h = pThis->svga.viewport.cy;
2838
2839	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2840	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2841	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2842	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2843	{
2844	/* Intersection is empty; skip */
2845	continue;
2846	}
2847
2848	left = pRect[i].srcx;
2849	right = pRect[i].srcx + pRect[i].w;
2850	top = pRect[i].srcy + pRect[i].h;
2851	bottom = pRect[i].srcy;
2852
2853	left /= pSurface->pMipmapLevels[0].size.width;
2854	right /= pSurface->pMipmapLevels[0].size.width;
2855	top /= pSurface->pMipmapLevels[0].size.height;
2856	bottom /= pSurface->pMipmapLevels[0].size.height;
2857
2858	vertexLeft = pRect[i].x;
2859	vertexRight = pRect[i].x + pRect[i].w;
2860	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2861	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2862
2863	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2864	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2865	Log(("texture (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", pRect[i].srcx, pSurface->pMipmapLevels[0].size.height - (pRect[i].srcy + pRect[i].h), pRect[i].srcx, pSurface->pMipmapLevels[0].size.height - pRect[i].srcy, pRect[i].srcx + pRect[i].w, pSurface->pMipmapLevels[0].size.height - pRect[i].srcy, pRect[i].srcx + pRect[i].w, pSurface->pMipmapLevels[0].size.height - (pRect[i].srcy + pRect[i].h)));
2866
2867	glBegin(GL_QUADS);
2868
2869	/* bottom left */
2870	glTexCoord2f(left, bottom);
2871	glVertex2i(vertexLeft, vertexBottom);
2872
2873	/* top left */
2874	glTexCoord2f(left, top);
2875	glVertex2i(vertexLeft, vertexTop);
2876
2877	/* top right */
2878	glTexCoord2f(right, top);
2879	glVertex2i(vertexRight, vertexTop);
2880
2881	/* bottom right */
2882	glTexCoord2f(right, bottom);
2883	glVertex2i(vertexRight, vertexBottom);
2884
2885	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2886	}
2887
2888	/* Restore old settings. */
2889	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2890	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2891	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2892	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2893
2894	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2895
2896	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2897	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2898	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2899
2900	#else
2901	/*
2902	* glBlitFramebuffer variant.
2903	*/
2904	/* Activate the read and draw framebuffer objects. */
2905	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2906	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2907	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2908	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2909
2910	/* Bind the source objects to the right place. */
2911	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2912	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2913
2914
2915	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2916	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2917	ASMCompilerBarrier(); /* paranoia */
2918	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2919
2920	/* If there are no recangles specified, just grab a screenful. */
2921	SVGA3dCopyRect DummyRect;
2922	if (cRects != 0)
2923	{ /* likely */ }
2924	else
2925	{
2926	/** @todo Find the usecase for this or check what the original device does.
2927	* The original code was doing some scaling based on the surface
2928	* size... */
2929	# ifdef DEBUG_bird
2930	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2931	# endif
2932	DummyRect.x = DummyRect.srcx = 0;
2933	DummyRect.y = DummyRect.srcy = 0;
2934	DummyRect.w = pThis->svga.uWidth;
2935	DummyRect.h = pThis->svga.uHeight;
2936	cRects = 1;
2937	pRect = &DummyRect;
2938	}
2939
2940	/*
2941	* Blit the surface rectangle(s) to the back buffer.
2942	*/
2943	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
2944	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
2945	for (uint32_t i = 0; i < cRects; i++)
2946	{
2947	SVGA3dCopyRect ClippedRect = pRect[i];
2948
2949	/*
2950	* Do some sanity checking and limit width and height, all so we
2951	* don't need to think about wrap-arounds below.
2952	*/
2953	if (RT_LIKELY( ClippedRect.w
2954	&& ClippedRect.x < VMSVGA_MAX_X
2955	&& ClippedRect.srcx < VMSVGA_MAX_X
2956	&& ClippedRect.h
2957	&& ClippedRect.y < VMSVGA_MAX_Y
2958	&& ClippedRect.srcy < VMSVGA_MAX_Y
2959	))
2960	{ /* likely */ }
2961	else
2962	continue;
2963
2964	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
2965	{ /* likely */ }
2966	else
2967	ClippedRect.w = VMSVGA_MAX_X;
2968	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
2969	{ /* likely */ }
2970	else
2971	ClippedRect.h = VMSVGA_MAX_Y;
2972
2973
2974	/*
2975	* Source surface clipping (paranoia). Straight forward.
2976	*/
2977	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2978	{ /* likely */ }
2979	else
2980	continue;
2981	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2982	{ /* likely */ }
2983	else
2984	{
2985	AssertFailed(); /* remove if annoying. */
2986	ClippedRect.w = cxSurface - ClippedRect.srcx;
2987	}
2988
2989	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2990	{ /* likely */ }
2991	else
2992	continue;
2993	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2994	{ /* likely */ }
2995	else
2996	{
2997	AssertFailed(); /* remove if annoying. */
2998	ClippedRect.h = cySurface - ClippedRect.srcy;
2999	}
3000
3001	/*
3002	* Destination viewport clipping - real PITA.
3003	*
3004	* We have to take the following into account here:
3005	* - The source image is Y inverted.
3006	* - The destination framebuffer is in world and not window coordinates,
3007	* just like the source surface. This means working in the first quadrant.
3008	* - The viewport is in window coordinate, that is fourth quadrant and
3009	* negated Y values.
3010	* - The destination framebuffer is not scrolled, so we have to blit
3011	* what's visible into the top of the framebuffer.
3012	*
3013	*
3014	* To illustrate:
3015	*
3016	* source destination 0123456789
3017	* 8 ^---------- 8 ^---------- 0 ----------->
3018	* 7 \| \| 7 \| \| 1 \| \|
3019	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
3020	* 5 \| *** \| 5 \| * \| 3 \| * \|
3021	* 4 \| * \| => 4 \| * \| => 4 \| * \|
3022	* 3 \| * \| 3 \| * \| 5 \| * \|
3023	* 2 \| ******* \| 2 \| \| 6 \| \|
3024	* 1 \| \| 1 \| \| 7 \| \|
3025	* 0 -----------> 0 -----------> 8 v----------
3026	* 0123456789 0123456789 Destination window
3027	*
3028	* From the above, it follows that a destination viewport given in
3029	* window coordinates matches the source exactly when srcy = srcx = 0.
3030	*
3031	* Example (Y only):
3032	* ySrc = 0
3033	* yDst = 0
3034	* cyCopy = 9
3035	* cyScreen = cyCopy
3036	* cySurface >= cyCopy
3037	* yViewport = 5
3038	* cyViewport = 2 (i.e. '\| *** \|'
3039	* '\| \|' )
3040	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3041	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3042	*
3043	* We can see from the illustration that the final result should be:
3044	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3045	* DstRect = (0,2) (11, 4)
3046	*
3047	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3048	* easier to follow:
3049	* SrcRect = (0,5) (11, 7)
3050	*
3051	* From the top, Y values only:
3052	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3053	*
3054	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3055	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3056	* Copy.yDst += cyAdjust = 2;
3057	* Copy.ySrc = unchanged;
3058	* Copy.cx -= cyAdjust = 7;
3059	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3060	*
3061	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3062	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3063	* Copy.yDst = unchanged;
3064	* Copy.ySrc += cyAdjust = 5;
3065	* Copy.cx -= cyAdjust = 2;
3066	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3067	*
3068	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3069	* when the view is resized, moved and otherwise messed with,
3070	* the visible part of the framebuffer is actually the bottom
3071	* one. It's easy to adjust for this, just have to adjust the
3072	* destination rectangle such that yBottom is zero.
3073	*/
3074	/* X - no inversion, so kind of simple. */
3075	if (ClippedRect.x >= DstViewport.x)
3076	{
3077	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3078	{ /* typical */ }
3079	else if (ClippedRect.x < DstViewport.xRight)
3080	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3081	else
3082	continue;
3083	}
3084	else
3085	{
3086	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3087	if (cxAdjust < ClippedRect.w)
3088	{
3089	ClippedRect.w -= cxAdjust;
3090	ClippedRect.x += cxAdjust;
3091	ClippedRect.srcx += cxAdjust;
3092	}
3093	else
3094	continue;
3095
3096	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3097	{ /* typical */ }
3098	else
3099	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3100	}
3101
3102	/* Y - complicated, see above. */
3103	if (ClippedRect.y >= DstViewport.yLowWC)
3104	{
3105	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3106	{ /* typical */ }
3107	else if (ClippedRect.y < DstViewport.yHighWC)
3108	{
3109	/* adjustment #2 */
3110	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3111	ClippedRect.srcy += cyAdjust;
3112	ClippedRect.h -= cyAdjust;
3113	}
3114	else
3115	continue;
3116	}
3117	else
3118	{
3119	/* adjustment #1 */
3120	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3121	if (cyAdjust < ClippedRect.h)
3122	{
3123	ClippedRect.y += cyAdjust;
3124	ClippedRect.h -= cyAdjust;
3125	}
3126	else
3127	continue;
3128
3129	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3130	{ /* typical */ }
3131	else
3132	{
3133	/* adjustment #2 */
3134	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3135	ClippedRect.srcy += cyAdjust;
3136	ClippedRect.h -= cyAdjust;
3137	}
3138	}
3139
3140	/* Calc source rectangle with y flipping wrt destination. */
3141	RTRECT SrcRect;
3142	SrcRect.xLeft = ClippedRect.srcx;
3143	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3144	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3145	SrcRect.yTop = ClippedRect.srcy;
3146
3147	/* Calc destination rectangle. */
3148	RTRECT DstRect;
3149	DstRect.xLeft = ClippedRect.x;
3150	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3151	DstRect.yBottom = ClippedRect.y;
3152	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3153
3154	/* Adjust for viewport. */
3155	DstRect.xLeft -= DstViewport.x;
3156	DstRect.xRight -= DstViewport.x;
3157	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3158	DstRect.yTop -= DstRect.yBottom;
3159	DstRect.yBottom = 0;
3160	# else
3161	DstRect.yBottom += DstViewport.y;
3162	DstRect.yTop += DstViewport.y;
3163	# endif
3164
3165	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3166	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3167	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3168	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3169	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3170	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3171	}
3172
3173	#endif
3174
3175	/*
3176	* Flip the front and back buffers.
3177	*/
3178	#ifdef RT_OS_WINDOWS
3179	BOOL fRef = SwapBuffers(pContext->hdc);
3180	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3181	#elif defined(RT_OS_DARWIN)
3182	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3183	#else
3184	/* show the window if not already done */
3185	if (!pContext->fMapped)
3186	{
3187	XMapWindow(pState->display, pContext->window);
3188	pContext->fMapped = true;
3189	}
3190	/* now swap the buffers, i.e. display the rendering result */
3191	glXSwapBuffers(pState->display, pContext->window);
3192	#endif
3193
3194	/*
3195	* Now we can reset the frame buffer association. Doing it earlier means no
3196	* output on darwin.
3197	*/
3198	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3199	return VINF_SUCCESS;
3200	}
3201
3202	#ifdef RT_OS_LINUX
3203	/**
3204	* X11 event handling thread.
3205	*
3206	* @returns VINF_SUCCESS (ignored)
3207	* @param hThreadSelf thread handle
3208	* @param pvUser pointer to pState structure
3209	*/
3210	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3211	{
3212	RT_NOREF(hThreadSelf);
3213	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3214	while (!pState->bTerminate)
3215	{
3216	while (XPending(pState->display) > 0)
3217	{
3218	XEvent event;
3219	XNextEvent(pState->display, &event);
3220
3221	switch (event.type)
3222	{
3223	default:
3224	break;
3225	}
3226	}
3227	/* sleep for 16ms to not burn too many cycles */
3228	RTThreadSleep(16);
3229	}
3230	return VINF_SUCCESS;
3231	}
3232	#endif // RT_OS_LINUX
3233
3234
3235	/**
3236	* Create a new 3d context
3237	*
3238	* @returns VBox status code.
3239	* @param pThis VGA device instance data.
3240	* @param cid Context id
3241	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3242	*/
3243	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3244	{
3245	int rc;
3246	PVMSVGA3DCONTEXT pContext;
3247	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3248
3249	AssertReturn(pState, VERR_NO_MEMORY);
3250	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3251	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3252	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3253	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3254	#endif
3255
3256	Log(("vmsvga3dContextDefine id %x\n", cid));
3257	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3258	if (pState->idTestContext == SVGA_ID_INVALID)
3259	{
3260	pState->idTestContext = 207;
3261	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3262	AssertRCReturn(rc, rc);
3263	}
3264	#endif
3265
3266	if (cid == VMSVGA3D_SHARED_CTX_ID)
3267	pContext = &pState->SharedCtx;
3268	else
3269	{
3270	if (cid >= pState->cContexts)
3271	{
3272	/* Grow the array. */
3273	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3274	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3275	AssertReturn(pvNew, VERR_NO_MEMORY);
3276	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3277	while (pState->cContexts < cNew)
3278	{
3279	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3280	AssertReturn(pContext, VERR_NO_MEMORY);
3281	pContext->id = SVGA3D_INVALID_ID;
3282	pState->papContexts[pState->cContexts++] = pContext;
3283	}
3284	}
3285	/* If one already exists with this id, then destroy it now. */
3286	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3287	vmsvga3dContextDestroy(pThis, cid);
3288
3289	pContext = pState->papContexts[cid];
3290	}
3291
3292	/*
3293	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3294	*/
3295	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3296	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3297	{
3298	pSharedCtx = &pState->SharedCtx;
3299	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3300	{
3301	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3302	AssertLogRelRCReturn(rc, rc);
3303	}
3304	}
3305
3306	/*
3307	* Initialize the context.
3308	*/
3309	memset(pContext, 0, sizeof(*pContext));
3310	pContext->id = cid;
3311	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3312	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3313
3314	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3315	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3316	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3317	pContext->idFramebuffer = OPENGL_INVALID_ID;
3318	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3319	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3320
3321	rc = ShaderContextCreate(&pContext->pShaderContext);
3322	AssertRCReturn(rc, rc);
3323
3324	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3325	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3326
3327	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3328
3329	#ifdef RT_OS_WINDOWS
3330	/* Create a context window. */
3331	CREATESTRUCT cs;
3332	cs.lpCreateParams = NULL;
3333	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3334	# ifdef DEBUG_GFX_WINDOW
3335	cs.lpszName = (char *)RTMemAllocZ(256);
3336	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3337	# else
3338	cs.lpszName = NULL;
3339	# endif
3340	cs.lpszClass = 0;
3341	# ifdef DEBUG_GFX_WINDOW
3342	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3343	# else
3344	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3345	# endif
3346	cs.x = 0;
3347	cs.y = 0;
3348	cs.cx = pThis->svga.uWidth;
3349	cs.cy = pThis->svga.uHeight;
3350	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3351	cs.hMenu = NULL;
3352	cs.hInstance = pState->hInstance;
3353
3354	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3355	AssertRCReturn(rc, rc);
3356
3357	pContext->hdc = GetDC(pContext->hwnd);
3358	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3359
3360	PIXELFORMATDESCRIPTOR pfd = {
3361	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3362	1, /* version number */
3363	PFD_DRAW_TO_WINDOW \| /* support window */
3364	PFD_DOUBLEBUFFER \| /* support double buffering */
3365	PFD_SUPPORT_OPENGL, /* support OpenGL */
3366	PFD_TYPE_RGBA, /* RGBA type */
3367	24, /* 24-bit color depth */
3368	0, 0, 0, 0, 0, 0, /* color bits ignored */
3369	8, /* alpha buffer */
3370	0, /* shift bit ignored */
3371	0, /* no accumulation buffer */
3372	0, 0, 0, 0, /* accum bits ignored */
3373	16, /* set depth buffer */
3374	16, /* set stencil buffer */
3375	0, /* no auxiliary buffer */
3376	PFD_MAIN_PLANE, /* main layer */
3377	0, /* reserved */
3378	0, 0, 0 /* layer masks ignored */
3379	};
3380	int pixelFormat;
3381	BOOL ret;
3382
3383	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3384	/** @todo is this really necessary?? */
3385	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3386	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3387
3388	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3389	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3390
3391	pContext->hglrc = wglCreateContext(pContext->hdc);
3392	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3393
3394	if (pSharedCtx)
3395	{
3396	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3397	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3398	}
3399
3400	#elif defined(RT_OS_DARWIN)
3401	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3402
3403	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3404	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3405	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3406	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3407	pThis->svga.uWidth, pThis->svga.uHeight,
3408	pShareContext, pContext->fOtherProfile);
3409
3410	#else
3411	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3412
3413	if (pState->display == NULL)
3414	{
3415	/* get an X display and make sure we have glX 1.3 */
3416	pState->display = XOpenDisplay(0);
3417	Assert(pState->display);
3418	int glxMajor, glxMinor;
3419	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3420	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3421	/* start our X event handling thread */
3422	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3423	if (RT_FAILURE(rc))
3424	{
3425	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3426	return rc;
3427	}
3428	}
3429	int attrib[] =
3430	{
3431	GLX_RGBA,
3432	GLX_RED_SIZE, 1,
3433	GLX_GREEN_SIZE, 1,
3434	GLX_BLUE_SIZE, 1,
3435	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3436	GLX_DOUBLEBUFFER,
3437	None
3438	};
3439	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3440	XSetWindowAttributes swa;
3441	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3442	swa.border_pixel = 0;
3443	swa.background_pixel = 0;
3444	swa.event_mask = StructureNotifyMask \| ExposureMask;
3445	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3446	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3447	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3448	0, vi->depth, InputOutput,
3449	vi->visual, flags, &swa);
3450	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3451	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3452
3453	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3454
3455	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3456	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3457	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3458	#endif
3459
3460	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3461
3462	/* NULL during the first PowerOn call. */
3463	if (pState->ext.glGenFramebuffers)
3464	{
3465	/* Create a framebuffer object for this context. */
3466	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3468
3469	/* Bind the object to the framebuffer target. */
3470	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3471	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3472
3473	/* Create read and draw framebuffer objects for this context. */
3474	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3475	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3476
3477	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3479
3480	}
3481	#if 0
3482	/** @todo move to shader lib!!! */
3483	/* Clear the screen */
3484	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3485
3486	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3487	glClearIndex(0);
3488	glClearDepth(1);
3489	glClearStencil(0xffff);
3490	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3491	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3492	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3493	if (pState->ext.glProvokingVertex)
3494	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3495	/** @todo move to shader lib!!! */
3496	#endif
3497	return VINF_SUCCESS;
3498	}
3499
3500
3501	/**
3502	* Create a new 3d context
3503	*
3504	* @returns VBox status code.
3505	* @param pThis VGA device instance data.
3506	* @param cid Context id
3507	*/
3508	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3509	{
3510	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3511	}
3512
3513	/**
3514	* Destroys a 3d context.
3515	*
3516	* @returns VBox status code.
3517	* @param pThis VGA device instance data.
3518	* @param pContext The context to destroy.
3519	* @param cid Context id
3520	*/
3521	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3522	{
3523	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3524	AssertReturn(pState, VERR_NO_MEMORY);
3525	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3526	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3527	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3528
3529	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3530
3531	/* Destroy all leftover pixel shaders. */
3532	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3533	{
3534	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3535	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3536	}
3537	if (pContext->paPixelShader)
3538	RTMemFree(pContext->paPixelShader);
3539
3540	/* Destroy all leftover vertex shaders. */
3541	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3542	{
3543	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3544	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3545	}
3546	if (pContext->paVertexShader)
3547	RTMemFree(pContext->paVertexShader);
3548
3549	if (pContext->state.paVertexShaderConst)
3550	RTMemFree(pContext->state.paVertexShaderConst);
3551	if (pContext->state.paPixelShaderConst)
3552	RTMemFree(pContext->state.paPixelShaderConst);
3553
3554	if (pContext->pShaderContext)
3555	{
3556	int rc = ShaderContextDestroy(pContext->pShaderContext);
3557	AssertRC(rc);
3558	}
3559
3560	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3561	{
3562	/* Unbind the object from the framebuffer target. */
3563	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3564	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3565	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3566	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3567
3568	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3569	{
3570	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3571	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3572	}
3573	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3574	{
3575	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3576	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3577	}
3578	}
3579
3580	vmsvga3dOcclusionQueryDelete(pState, pContext);
3581
3582	#ifdef RT_OS_WINDOWS
3583	wglMakeCurrent(pContext->hdc, NULL);
3584	wglDeleteContext(pContext->hglrc);
3585	ReleaseDC(pContext->hwnd, pContext->hdc);
3586
3587	/* Destroy the window we've created. */
3588	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3589	AssertRC(rc);
3590	#elif defined(RT_OS_DARWIN)
3591	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3592	#elif defined(RT_OS_LINUX)
3593	glXMakeCurrent(pState->display, None, NULL);
3594	glXDestroyContext(pState->display, pContext->glxContext);
3595	XDestroyWindow(pState->display, pContext->window);
3596	#endif
3597
3598	memset(pContext, 0, sizeof(*pContext));
3599	pContext->id = SVGA3D_INVALID_ID;
3600
3601	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3602	return VINF_SUCCESS;
3603	}
3604
3605	/**
3606	* Destroy an existing 3d context
3607	*
3608	* @returns VBox status code.
3609	* @param pThis VGA device instance data.
3610	* @param cid Context id
3611	*/
3612	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3613	{
3614	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3615	AssertReturn(pState, VERR_WRONG_ORDER);
3616
3617	/*
3618	* Resolve the context and hand it to the common worker function.
3619	*/
3620	if ( cid < pState->cContexts
3621	&& pState->papContexts[cid]->id == cid)
3622	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3623
3624	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3625	return VINF_SUCCESS;
3626	}
3627
3628	/**
3629	* Worker for vmsvga3dChangeMode that resizes a context.
3630	*
3631	* @param pThis The VGA device instance data.
3632	* @param pState The VMSVGA3d state.
3633	* @param pContext The context.
3634	*/
3635	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3636	{
3637	#ifdef RT_OS_WINDOWS
3638	/* Resize the window. */
3639	CREATESTRUCT cs;
3640	RT_ZERO(cs);
3641	cs.cx = pThis->svga.uWidth;
3642	cs.cy = pThis->svga.uHeight;
3643	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3644	AssertRC(rc);
3645
3646	#elif defined(RT_OS_DARWIN)
3647	RT_NOREF(pState);
3648	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3649
3650	#elif defined(RT_OS_LINUX)
3651	XWindowChanges wc;
3652	wc.width = pThis->svga.uWidth;
3653	wc.height = pThis->svga.uHeight;
3654	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3655	#endif
3656	}
3657
3658	/* Handle resize */
3659	int vmsvga3dChangeMode(PVGASTATE pThis)
3660	{
3661	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3662	AssertReturn(pState, VERR_NO_MEMORY);
3663
3664	/* Resize the shared context too. */
3665	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3666	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3667
3668	/* Resize all active contexts. */
3669	for (uint32_t i = 0; i < pState->cContexts; i++)
3670	{
3671	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3672	if (pContext->id != SVGA3D_INVALID_ID)
3673	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3674	}
3675
3676	return VINF_SUCCESS;
3677	}
3678
3679
3680	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3681	{
3682	PVMSVGA3DCONTEXT pContext;
3683	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3684	AssertReturn(pState, VERR_NO_MEMORY);
3685	bool fModelViewChanged = false;
3686
3687	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3688
3689	if ( cid >= pState->cContexts
3690	\|\| pState->papContexts[cid]->id != cid)
3691	{
3692	Log(("vmsvga3dSetTransform invalid context id!\n"));
3693	return VERR_INVALID_PARAMETER;
3694	}
3695	pContext = pState->papContexts[cid];
3696	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3697
3698	/* Save this matrix for vm state save/restore. */
3699	pContext->state.aTransformState[type].fValid = true;
3700	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3701	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3702
3703	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)));
3704	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)));
3705	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)));
3706	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)));
3707
3708	switch (type)
3709	{
3710	case SVGA3D_TRANSFORM_VIEW:
3711	/* View * World = Model View */
3712	glMatrixMode(GL_MODELVIEW);
3713	glLoadMatrixf(matrix);
3714	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3715	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3717	fModelViewChanged = true;
3718	break;
3719
3720	case SVGA3D_TRANSFORM_PROJECTION:
3721	{
3722	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3723	AssertRCReturn(rc, rc);
3724	break;
3725	}
3726
3727	case SVGA3D_TRANSFORM_TEXTURE0:
3728	glMatrixMode(GL_TEXTURE);
3729	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3730	glLoadMatrixf(matrix);
3731	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3732	break;
3733
3734	case SVGA3D_TRANSFORM_TEXTURE1:
3735	case SVGA3D_TRANSFORM_TEXTURE2:
3736	case SVGA3D_TRANSFORM_TEXTURE3:
3737	case SVGA3D_TRANSFORM_TEXTURE4:
3738	case SVGA3D_TRANSFORM_TEXTURE5:
3739	case SVGA3D_TRANSFORM_TEXTURE6:
3740	case SVGA3D_TRANSFORM_TEXTURE7:
3741	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3742	return VERR_INVALID_PARAMETER;
3743
3744	case SVGA3D_TRANSFORM_WORLD:
3745	/* View * World = Model View */
3746	glMatrixMode(GL_MODELVIEW);
3747	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3748	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3749	else
3750	glLoadIdentity();
3751	glMultMatrixf(matrix);
3752	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3753	fModelViewChanged = true;
3754	break;
3755
3756	case SVGA3D_TRANSFORM_WORLD1:
3757	case SVGA3D_TRANSFORM_WORLD2:
3758	case SVGA3D_TRANSFORM_WORLD3:
3759	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3760	return VERR_INVALID_PARAMETER;
3761
3762	default:
3763	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3764	return VERR_INVALID_PARAMETER;
3765	}
3766
3767	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3768	if (fModelViewChanged)
3769	{
3770	/* Reprogram the clip planes. */
3771	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3772	{
3773	if (pContext->state.aClipPlane[j].fValid == true)
3774	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3775	}
3776
3777	/* Reprogram the light data. */
3778	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3779	{
3780	if (pContext->state.aLightData[j].fValidData == true)
3781	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3782	}
3783	}
3784
3785	return VINF_SUCCESS;
3786	}
3787
3788	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3789	{
3790	PVMSVGA3DCONTEXT pContext;
3791	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3792	AssertReturn(pState, VERR_NO_MEMORY);
3793
3794	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3795
3796	if ( cid >= pState->cContexts
3797	\|\| pState->papContexts[cid]->id != cid)
3798	{
3799	Log(("vmsvga3dSetZRange invalid context id!\n"));
3800	return VERR_INVALID_PARAMETER;
3801	}
3802	pContext = pState->papContexts[cid];
3803	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3804
3805	pContext->state.zRange = zRange;
3806	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3807
3808	if (zRange.min < -1.0)
3809	zRange.min = -1.0;
3810	if (zRange.max > 1.0)
3811	zRange.max = 1.0;
3812
3813	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3814	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3815	return VINF_SUCCESS;
3816	}
3817
3818	/**
3819	* Convert SVGA blend op value to its OpenGL equivalent
3820	*/
3821	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3822	{
3823	switch (blendOp)
3824	{
3825	case SVGA3D_BLENDOP_ZERO:
3826	return GL_ZERO;
3827	case SVGA3D_BLENDOP_ONE:
3828	return GL_ONE;
3829	case SVGA3D_BLENDOP_SRCCOLOR:
3830	return GL_SRC_COLOR;
3831	case SVGA3D_BLENDOP_INVSRCCOLOR:
3832	return GL_ONE_MINUS_SRC_COLOR;
3833	case SVGA3D_BLENDOP_SRCALPHA:
3834	return GL_SRC_ALPHA;
3835	case SVGA3D_BLENDOP_INVSRCALPHA:
3836	return GL_ONE_MINUS_SRC_ALPHA;
3837	case SVGA3D_BLENDOP_DESTALPHA:
3838	return GL_DST_ALPHA;
3839	case SVGA3D_BLENDOP_INVDESTALPHA:
3840	return GL_ONE_MINUS_DST_ALPHA;
3841	case SVGA3D_BLENDOP_DESTCOLOR:
3842	return GL_DST_COLOR;
3843	case SVGA3D_BLENDOP_INVDESTCOLOR:
3844	return GL_ONE_MINUS_DST_COLOR;
3845	case SVGA3D_BLENDOP_SRCALPHASAT:
3846	return GL_SRC_ALPHA_SATURATE;
3847	case SVGA3D_BLENDOP_BLENDFACTOR:
3848	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3849	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3850	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3851	default:
3852	AssertFailed();
3853	return GL_ONE;
3854	}
3855	}
3856
3857	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3858	{
3859	switch (blendEq)
3860	{
3861	case SVGA3D_BLENDEQ_ADD:
3862	return GL_FUNC_ADD;
3863	case SVGA3D_BLENDEQ_SUBTRACT:
3864	return GL_FUNC_SUBTRACT;
3865	case SVGA3D_BLENDEQ_REVSUBTRACT:
3866	return GL_FUNC_REVERSE_SUBTRACT;
3867	case SVGA3D_BLENDEQ_MINIMUM:
3868	return GL_MIN;
3869	case SVGA3D_BLENDEQ_MAXIMUM:
3870	return GL_MAX;
3871	default:
3872	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3873	return GL_FUNC_ADD;
3874	}
3875	}
3876
3877	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3878	{
3879	switch (cmpFunc)
3880	{
3881	case SVGA3D_CMP_NEVER:
3882	return GL_NEVER;
3883	case SVGA3D_CMP_LESS:
3884	return GL_LESS;
3885	case SVGA3D_CMP_EQUAL:
3886	return GL_EQUAL;
3887	case SVGA3D_CMP_LESSEQUAL:
3888	return GL_LEQUAL;
3889	case SVGA3D_CMP_GREATER:
3890	return GL_GREATER;
3891	case SVGA3D_CMP_NOTEQUAL:
3892	return GL_NOTEQUAL;
3893	case SVGA3D_CMP_GREATEREQUAL:
3894	return GL_GEQUAL;
3895	case SVGA3D_CMP_ALWAYS:
3896	return GL_ALWAYS;
3897	default:
3898	AssertFailed();
3899	return GL_LESS;
3900	}
3901	}
3902
3903	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3904	{
3905	switch (stencilOp)
3906	{
3907	case SVGA3D_STENCILOP_KEEP:
3908	return GL_KEEP;
3909	case SVGA3D_STENCILOP_ZERO:
3910	return GL_ZERO;
3911	case SVGA3D_STENCILOP_REPLACE:
3912	return GL_REPLACE;
3913	case SVGA3D_STENCILOP_INCRSAT:
3914	return GL_INCR_WRAP;
3915	case SVGA3D_STENCILOP_DECRSAT:
3916	return GL_DECR_WRAP;
3917	case SVGA3D_STENCILOP_INVERT:
3918	return GL_INVERT;
3919	case SVGA3D_STENCILOP_INCR:
3920	return GL_INCR;
3921	case SVGA3D_STENCILOP_DECR:
3922	return GL_DECR;
3923	default:
3924	AssertFailed();
3925	return GL_KEEP;
3926	}
3927	}
3928
3929	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3930	{
3931	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3932	PVMSVGA3DCONTEXT pContext;
3933	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3934	AssertReturn(pState, VERR_NO_MEMORY);
3935
3936	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3937
3938	if ( cid >= pState->cContexts
3939	\|\| pState->papContexts[cid]->id != cid)
3940	{
3941	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3942	return VERR_INVALID_PARAMETER;
3943	}
3944	pContext = pState->papContexts[cid];
3945	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3946
3947	for (unsigned i = 0; i < cRenderStates; i++)
3948	{
3949	GLenum enableCap = ~(GLenum)0;
3950	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3951	/* Save the render state for vm state saving. */
3952	if (pRenderState[i].state < SVGA3D_RS_MAX)
3953	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3954
3955	switch (pRenderState[i].state)
3956	{
3957	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3958	enableCap = GL_DEPTH_TEST;
3959	val = pRenderState[i].uintValue;
3960	break;
3961
3962	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3963	glDepthMask(!!pRenderState[i].uintValue);
3964	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3965	break;
3966
3967	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3968	enableCap = GL_ALPHA_TEST;
3969	val = pRenderState[i].uintValue;
3970	break;
3971
3972	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3973	enableCap = GL_DITHER;
3974	val = pRenderState[i].uintValue;
3975	break;
3976
3977	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3978	enableCap = GL_FOG;
3979	val = pRenderState[i].uintValue;
3980	break;
3981
3982	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3983	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3984	break;
3985
3986	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3987	enableCap = GL_LIGHTING;
3988	val = pRenderState[i].uintValue;
3989	break;
3990
3991	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3992	/* not applicable */
3993	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3994	break;
3995
3996	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3997	enableCap = GL_POINT_SPRITE_ARB;
3998	val = pRenderState[i].uintValue;
3999	break;
4000
4001	case SVGA3D_RS_POINTSIZE: /* float */
4002	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4003	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4004	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4005	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4006	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4007
4008	glPointSize(pRenderState[i].floatValue);
4009	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4010	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4011	break;
4012
4013	case SVGA3D_RS_POINTSIZEMIN: /* float */
4014	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4015	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4016	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4017	break;
4018
4019	case SVGA3D_RS_POINTSIZEMAX: /* float */
4020	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4022	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4023	break;
4024
4025	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4026	case SVGA3D_RS_POINTSCALE_A: /* float */
4027	case SVGA3D_RS_POINTSCALE_B: /* float */
4028	case SVGA3D_RS_POINTSCALE_C: /* float */
4029	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4030	break;
4031
4032	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4033	{
4034	GLfloat color[4]; /* red, green, blue, alpha */
4035
4036	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4037
4038	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4040	break;
4041	}
4042
4043	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4044	{
4045	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4046	for (uint32_t j = 0; j <= 5; j++)
4047	{
4048	if (pRenderState[i].uintValue & RT_BIT(j))
4049	glEnable(GL_CLIP_PLANE0 + j);
4050	else
4051	glDisable(GL_CLIP_PLANE0 + j);
4052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4053	}
4054	break;
4055	}
4056
4057	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4058	{
4059	GLfloat color[4]; /* red, green, blue, alpha */
4060
4061	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4062
4063	glFogfv(GL_FOG_COLOR, color);
4064	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4065	break;
4066	}
4067
4068	case SVGA3D_RS_FOGSTART: /* float */
4069	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4071	break;
4072
4073	case SVGA3D_RS_FOGEND: /* float */
4074	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4076	break;
4077
4078	case SVGA3D_RS_FOGDENSITY: /* float */
4079	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4081	break;
4082
4083	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4084	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4086	break;
4087
4088	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4089	{
4090	SVGA3dFogMode mode;
4091	mode.uintValue = pRenderState[i].uintValue;
4092
4093	enableCap = GL_FOG_MODE;
4094	switch (mode.s.function)
4095	{
4096	case SVGA3D_FOGFUNC_EXP:
4097	val = GL_EXP;
4098	break;
4099	case SVGA3D_FOGFUNC_EXP2:
4100	val = GL_EXP2;
4101	break;
4102	case SVGA3D_FOGFUNC_LINEAR:
4103	val = GL_LINEAR;
4104	break;
4105	default:
4106	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4107	break;
4108	}
4109
4110	/** @todo how to switch between vertex and pixel fog modes??? */
4111	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4112	#if 0
4113	/* The fog type determines the render state. */
4114	switch (mode.s.type)
4115	{
4116	case SVGA3D_FOGTYPE_VERTEX:
4117	renderState = D3DRS_FOGVERTEXMODE;
4118	break;
4119	case SVGA3D_FOGTYPE_PIXEL:
4120	renderState = D3DRS_FOGTABLEMODE;
4121	break;
4122	default:
4123	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4124	break;
4125	}
4126	#endif
4127
4128	/* Set the fog base to depth or range. */
4129	switch (mode.s.base)
4130	{
4131	case SVGA3D_FOGBASE_DEPTHBASED:
4132	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4134	break;
4135	case SVGA3D_FOGBASE_RANGEBASED:
4136	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4138	break;
4139	default:
4140	/* ignore */
4141	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4142	break;
4143	}
4144	break;
4145	}
4146
4147	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4148	{
4149	SVGA3dFillMode mode;
4150
4151	mode.uintValue = pRenderState[i].uintValue;
4152
4153	switch (mode.s.mode)
4154	{
4155	case SVGA3D_FILLMODE_POINT:
4156	val = GL_POINT;
4157	break;
4158	case SVGA3D_FILLMODE_LINE:
4159	val = GL_LINE;
4160	break;
4161	case SVGA3D_FILLMODE_FILL:
4162	val = GL_FILL;
4163	break;
4164	default:
4165	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4166	break;
4167	}
4168	/* @note only front and back faces */
4169	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4170	glPolygonMode(GL_FRONT_AND_BACK, val);
4171	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4172	break;
4173	}
4174
4175	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4176	switch (pRenderState[i].uintValue)
4177	{
4178	case SVGA3D_SHADEMODE_FLAT:
4179	val = GL_FLAT;
4180	break;
4181
4182	case SVGA3D_SHADEMODE_SMOOTH:
4183	val = GL_SMOOTH;
4184	break;
4185
4186	default:
4187	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4188	break;
4189	}
4190
4191	glShadeModel(val);
4192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4193	break;
4194
4195	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4196	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4197	/** @todo */
4198	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4199	/*
4200	renderState = D3DRS_LINEPATTERN;
4201	val = pRenderState[i].uintValue;
4202	*/
4203	break;
4204
4205	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4206	enableCap = GL_LINE_SMOOTH;
4207	val = pRenderState[i].uintValue;
4208	break;
4209
4210	case SVGA3D_RS_LINEWIDTH: /* float */
4211	glLineWidth(pRenderState[i].floatValue);
4212	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4213	break;
4214
4215	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4216	{
4217	/* Refresh the blending state based on the new enable setting. */
4218	SVGA3dRenderState renderstate[2];
4219
4220	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4221	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4222	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4223	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4224
4225	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4226	AssertRCReturn(rc, rc);
4227
4228	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4229	continue; /* ignore if blend is already enabled */
4230	} RT_FALL_THRU();
4231
4232	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4233	enableCap = GL_BLEND;
4234	val = pRenderState[i].uintValue;
4235	break;
4236
4237	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4238	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4239	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4240	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4241	{
4242	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4243	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4244
4245	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4246	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4247	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4249	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4250	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4251	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4253
4254	switch (pRenderState[i].state)
4255	{
4256	case SVGA3D_RS_SRCBLEND:
4257	srcRGB = blendop;
4258	break;
4259	case SVGA3D_RS_DSTBLEND:
4260	dstRGB = blendop;
4261	break;
4262	case SVGA3D_RS_SRCBLENDALPHA:
4263	srcAlpha = blendop;
4264	break;
4265	case SVGA3D_RS_DSTBLENDALPHA:
4266	dstAlpha = blendop;
4267	break;
4268	default:
4269	/* not possible; shut up gcc */
4270	AssertFailed();
4271	break;
4272	}
4273
4274	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4275	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4276	else
4277	glBlendFunc(srcRGB, dstRGB);
4278	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4279	break;
4280	}
4281
4282	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4283	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4284	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4285	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4286	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4287	else
4288	{
4289	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4290	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4291	#else
4292	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4293	#endif
4294	}
4295	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4296	break;
4297
4298	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4299	{
4300	GLfloat red, green, blue, alpha;
4301
4302	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4303
4304	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4305	glBlendColor(red, green, blue, alpha);
4306	#else
4307	pState->ext.glBlendColor(red, green, blue, alpha);
4308	#endif
4309	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4310	break;
4311	}
4312
4313	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4314	{
4315	GLenum mode = GL_BACK; /* default for OpenGL */
4316
4317	switch (pRenderState[i].uintValue)
4318	{
4319	case SVGA3D_FACE_NONE:
4320	break;
4321	case SVGA3D_FACE_FRONT:
4322	mode = GL_FRONT;
4323	break;
4324	case SVGA3D_FACE_BACK:
4325	mode = GL_BACK;
4326	break;
4327	case SVGA3D_FACE_FRONT_BACK:
4328	mode = GL_FRONT_AND_BACK;
4329	break;
4330	default:
4331	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4332	break;
4333	}
4334	enableCap = GL_CULL_FACE;
4335	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4336	{
4337	glCullFace(mode);
4338	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4339	val = 1;
4340	}
4341	else
4342	val = 0;
4343	break;
4344	}
4345
4346	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4347	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4348	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4349	break;
4350
4351	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4352	{
4353	GLclampf ref;
4354
4355	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4357	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4358	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4359	break;
4360	}
4361
4362	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4363	{
4364	GLint func;
4365
4366	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4367	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4368	glAlphaFunc(func, pRenderState[i].floatValue);
4369	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4370	break;
4371	}
4372
4373	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4374	enableCap = GL_STENCIL_TEST;
4375	val = pRenderState[i].uintValue;
4376	break;
4377
4378	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4379	case SVGA3D_RS_STENCILREF: /* uint32_t */
4380	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4381	{
4382	GLint func, ref;
4383	GLuint mask;
4384
4385	glGetIntegerv(GL_STENCIL_FUNC, &func);
4386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4387	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4388	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4389	glGetIntegerv(GL_STENCIL_REF, &ref);
4390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4391
4392	switch (pRenderState[i].state)
4393	{
4394	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4395	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4396	break;
4397
4398	case SVGA3D_RS_STENCILREF: /* uint32_t */
4399	ref = pRenderState[i].uintValue;
4400	break;
4401
4402	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4403	mask = pRenderState[i].uintValue;
4404	break;
4405
4406	default:
4407	/* not possible; shut up gcc */
4408	AssertFailed();
4409	break;
4410	}
4411
4412	glStencilFunc(func, ref, mask);
4413	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4414	break;
4415	}
4416
4417	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4418	glStencilMask(pRenderState[i].uintValue);
4419	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4420	break;
4421
4422	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4423	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4424	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4425	{
4426	GLint sfail, dpfail, dppass;
4427	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4428
4429	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4431	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4432	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4433	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4435
4436	switch (pRenderState[i].state)
4437	{
4438	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4439	sfail = stencilop;
4440	break;
4441	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4442	dpfail = stencilop;
4443	break;
4444	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4445	dppass = stencilop;
4446	break;
4447	default:
4448	/* not possible; shut up gcc */
4449	AssertFailed();
4450	break;
4451	}
4452	glStencilOp(sfail, dpfail, dppass);
4453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4454	break;
4455	}
4456
4457	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4458	/* @note GL_EXT_stencil_two_side required! */
4459	if (pState->ext.fEXT_stencil_two_side)
4460	{
4461	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4462	val = pRenderState[i].uintValue;
4463	}
4464	else
4465	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4466	break;
4467
4468	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4469	{
4470	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4471	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4472	*/
4473	GLint ref;
4474	GLuint mask;
4475
4476	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4478	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4479	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4480
4481	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4483	break;
4484	}
4485
4486	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4487	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4488	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4489	{
4490	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4491	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4492	*/
4493	GLint sfail, dpfail, dppass;
4494	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4495
4496	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4497	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4498	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4500	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4502
4503	switch (pRenderState[i].state)
4504	{
4505	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4506	sfail = stencilop;
4507	break;
4508	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4509	dpfail = stencilop;
4510	break;
4511	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4512	dppass = stencilop;
4513	break;
4514	default:
4515	/* not possible; shut up gcc */
4516	AssertFailed();
4517	break;
4518	}
4519	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4520	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4521	break;
4522	}
4523
4524	case SVGA3D_RS_ZBIAS: /* float */
4525	/** @todo unknown meaning; depth bias is not identical
4526	renderState = D3DRS_DEPTHBIAS;
4527	val = pRenderState[i].uintValue;
4528	*/
4529	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4530	break;
4531
4532	case SVGA3D_RS_DEPTHBIAS: /* float */
4533	{
4534	GLfloat factor;
4535
4536	/** @todo not sure if the d3d & ogl definitions are identical. */
4537
4538	/* Do not change the factor part. */
4539	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4541
4542	glPolygonOffset(factor, pRenderState[i].floatValue);
4543	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4544	break;
4545	}
4546
4547	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4548	{
4549	GLfloat units;
4550
4551	/** @todo not sure if the d3d & ogl definitions are identical. */
4552
4553	/* Do not change the factor part. */
4554	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4556
4557	glPolygonOffset(pRenderState[i].floatValue, units);
4558	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4559	break;
4560	}
4561
4562	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4563	{
4564	GLboolean red, green, blue, alpha;
4565	SVGA3dColorMask mask;
4566
4567	mask.uintValue = pRenderState[i].uintValue;
4568
4569	red = mask.s.red;
4570	green = mask.s.green;
4571	blue = mask.s.blue;
4572	alpha = mask.s.alpha;
4573
4574	glColorMask(red, green, blue, alpha);
4575	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4576	break;
4577	}
4578
4579	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4580	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4581	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4582	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4583	break;
4584
4585	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4586	enableCap = GL_SCISSOR_TEST;
4587	val = pRenderState[i].uintValue;
4588	break;
4589
4590	#if 0
4591	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4592	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4593	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4594	val = pRenderState[i].uintValue;
4595	break;
4596
4597	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4598	renderState = D3DRS_SPECULARMATERIALSOURCE;
4599	val = pRenderState[i].uintValue;
4600	break;
4601
4602	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4603	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4604	val = pRenderState[i].uintValue;
4605	break;
4606
4607	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4608	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4609	val = pRenderState[i].uintValue;
4610	break;
4611	#endif
4612
4613	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4614	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4615	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4616	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4617	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4618	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4619	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4620	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4621	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4622	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4623	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4624	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4625	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4626	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4627	break;
4628
4629	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4630	case SVGA3D_RS_TWEENFACTOR: /* float */
4631	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4632	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4633	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4634	break;
4635
4636	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4637	enableCap = GL_MULTISAMPLE;
4638	val = pRenderState[i].uintValue;
4639	break;
4640
4641	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4642	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4643	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4644	break;
4645
4646	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4647	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4648	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4649	/*
4650	renderState = D3DRS_COORDINATETYPE;
4651	val = pRenderState[i].uintValue;
4652	*/
4653	break;
4654
4655	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4656	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4657	/* Invert the selected mode because of y-inversion (?) */
4658	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4659	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4660	break;
4661
4662	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4663	//AssertFailed();
4664	/*
4665	D3DRS_SRGBWRITEENABLE ??
4666	renderState = D3DRS_OUTPUTGAMMA;
4667	val = pRenderState[i].uintValue;
4668	*/
4669	break;
4670
4671	#if 0
4672
4673	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4674	//AssertFailed();
4675	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4676	val = pRenderState[i].uintValue;
4677	break;
4678
4679	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4680	renderState = D3DRS_TEXTUREFACTOR;
4681	val = pRenderState[i].uintValue;
4682	break;
4683
4684	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4685	renderState = D3DRS_LOCALVIEWER;
4686	val = pRenderState[i].uintValue;
4687	break;
4688
4689	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4690	AssertFailed();
4691	/*
4692	renderState = D3DRS_ZVISIBLE;
4693	val = pRenderState[i].uintValue;
4694	*/
4695	break;
4696
4697	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4698	renderState = D3DRS_CLIPPING;
4699	val = pRenderState[i].uintValue;
4700	break;
4701
4702	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4703	glTexParameter GL_TEXTURE_WRAP_S
4704	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4705	renderState = D3DRS_WRAP0;
4706	val = pRenderState[i].uintValue;
4707	break;
4708
4709	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4710	glTexParameter GL_TEXTURE_WRAP_T
4711	renderState = D3DRS_WRAP1;
4712	val = pRenderState[i].uintValue;
4713	break;
4714
4715	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4716	glTexParameter GL_TEXTURE_WRAP_R
4717	renderState = D3DRS_WRAP2;
4718	val = pRenderState[i].uintValue;
4719	break;
4720
4721
4722	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4723	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4724	val = pRenderState[i].uintValue;
4725	break;
4726
4727
4728	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4729	renderState = D3DRS_BLENDOPALPHA;
4730	val = pRenderState[i].uintValue;
4731	break;
4732
4733	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4734	AssertFailed();
4735	/*
4736	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4737	val = pRenderState[i].uintValue;
4738	*/
4739	break;
4740
4741	#endif
4742	default:
4743	AssertFailed();
4744	break;
4745	}
4746
4747	if (enableCap != ~(GLenum)0)
4748	{
4749	if (val)
4750	glEnable(enableCap);
4751	else
4752	glDisable(enableCap);
4753	}
4754	}
4755
4756	return VINF_SUCCESS;
4757	}
4758
4759	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4760	{
4761	PVMSVGA3DCONTEXT pContext;
4762	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4763	PVMSVGA3DSURFACE pRenderTarget;
4764
4765	AssertReturn(pState, VERR_NO_MEMORY);
4766	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4767	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4768
4769	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4770
4771	if ( cid >= pState->cContexts
4772	\|\| pState->papContexts[cid]->id != cid)
4773	{
4774	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4775	return VERR_INVALID_PARAMETER;
4776	}
4777	pContext = pState->papContexts[cid];
4778	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4779
4780	/* Save for vm state save/restore. */
4781	pContext->state.aRenderTargets[type] = target.sid;
4782
4783	if (target.sid == SVGA3D_INVALID_ID)
4784	{
4785	/* Disable render target. */
4786	switch (type)
4787	{
4788	case SVGA3D_RT_DEPTH:
4789	case SVGA3D_RT_STENCIL:
4790	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4792	break;
4793
4794	case SVGA3D_RT_COLOR0:
4795	case SVGA3D_RT_COLOR1:
4796	case SVGA3D_RT_COLOR2:
4797	case SVGA3D_RT_COLOR3:
4798	case SVGA3D_RT_COLOR4:
4799	case SVGA3D_RT_COLOR5:
4800	case SVGA3D_RT_COLOR6:
4801	case SVGA3D_RT_COLOR7:
4802	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4803	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4804	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4805	break;
4806
4807	default:
4808	AssertFailedReturn(VERR_INVALID_PARAMETER);
4809	}
4810	return VINF_SUCCESS;
4811	}
4812
4813	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4814	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4815	pRenderTarget = pState->papSurfaces[target.sid];
4816
4817	switch (type)
4818	{
4819	case SVGA3D_RT_DEPTH:
4820	case SVGA3D_RT_STENCIL:
4821	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4822	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4823	{
4824	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4825	pContext = &pState->SharedCtx;
4826	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4827
4828	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4830
4831	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4832	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4833
4834	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4835	pRenderTarget->internalFormatGL,
4836	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4837	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4838	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4839
4840	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4841	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4842
4843	pContext = pState->papContexts[cid];
4844	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4845	pRenderTarget->idWeakContextAssociation = cid;
4846	}
4847
4848	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4849	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4850	Assert(!pRenderTarget->fDirty);
4851	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4852
4853	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4854
4855	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4856	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4857	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4858	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4859	break;
4860
4861	case SVGA3D_RT_COLOR0:
4862	case SVGA3D_RT_COLOR1:
4863	case SVGA3D_RT_COLOR2:
4864	case SVGA3D_RT_COLOR3:
4865	case SVGA3D_RT_COLOR4:
4866	case SVGA3D_RT_COLOR5:
4867	case SVGA3D_RT_COLOR6:
4868	case SVGA3D_RT_COLOR7:
4869	{
4870	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4871	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4872	{
4873	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));
4874	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4875	AssertRCReturn(rc, rc);
4876	}
4877
4878	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4879	Assert(!pRenderTarget->fDirty);
4880
4881	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4882
4883	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4884	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4885
4886	pContext->sidRenderTarget = target.sid;
4887
4888	#ifdef DEBUG
4889	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4890	if (status != GL_FRAMEBUFFER_COMPLETE)
4891	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4892	#endif
4893	/** @todo use glDrawBuffers too? */
4894	break;
4895	}
4896
4897	default:
4898	AssertFailedReturn(VERR_INVALID_PARAMETER);
4899	}
4900
4901	return VINF_SUCCESS;
4902	}
4903
4904	#if 0
4905	/**
4906	* Convert SVGA texture combiner value to its D3D equivalent
4907	*/
4908	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4909	{
4910	switch (value)
4911	{
4912	case SVGA3D_TC_DISABLE:
4913	return D3DTOP_DISABLE;
4914	case SVGA3D_TC_SELECTARG1:
4915	return D3DTOP_SELECTARG1;
4916	case SVGA3D_TC_SELECTARG2:
4917	return D3DTOP_SELECTARG2;
4918	case SVGA3D_TC_MODULATE:
4919	return D3DTOP_MODULATE;
4920	case SVGA3D_TC_ADD:
4921	return D3DTOP_ADD;
4922	case SVGA3D_TC_ADDSIGNED:
4923	return D3DTOP_ADDSIGNED;
4924	case SVGA3D_TC_SUBTRACT:
4925	return D3DTOP_SUBTRACT;
4926	case SVGA3D_TC_BLENDTEXTUREALPHA:
4927	return D3DTOP_BLENDTEXTUREALPHA;
4928	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4929	return D3DTOP_BLENDDIFFUSEALPHA;
4930	case SVGA3D_TC_BLENDCURRENTALPHA:
4931	return D3DTOP_BLENDCURRENTALPHA;
4932	case SVGA3D_TC_BLENDFACTORALPHA:
4933	return D3DTOP_BLENDFACTORALPHA;
4934	case SVGA3D_TC_MODULATE2X:
4935	return D3DTOP_MODULATE2X;
4936	case SVGA3D_TC_MODULATE4X:
4937	return D3DTOP_MODULATE4X;
4938	case SVGA3D_TC_DSDT:
4939	AssertFailed(); /** @todo ??? */
4940	return D3DTOP_DISABLE;
4941	case SVGA3D_TC_DOTPRODUCT3:
4942	return D3DTOP_DOTPRODUCT3;
4943	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4944	return D3DTOP_BLENDTEXTUREALPHAPM;
4945	case SVGA3D_TC_ADDSIGNED2X:
4946	return D3DTOP_ADDSIGNED2X;
4947	case SVGA3D_TC_ADDSMOOTH:
4948	return D3DTOP_ADDSMOOTH;
4949	case SVGA3D_TC_PREMODULATE:
4950	return D3DTOP_PREMODULATE;
4951	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4952	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4953	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4954	return D3DTOP_MODULATECOLOR_ADDALPHA;
4955	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4956	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4957	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4958	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4959	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4960	return D3DTOP_BUMPENVMAPLUMINANCE;
4961	case SVGA3D_TC_MULTIPLYADD:
4962	return D3DTOP_MULTIPLYADD;
4963	case SVGA3D_TC_LERP:
4964	return D3DTOP_LERP;
4965	default:
4966	AssertFailed();
4967	return D3DTOP_DISABLE;
4968	}
4969	}
4970
4971	/**
4972	* Convert SVGA texture arg data value to its D3D equivalent
4973	*/
4974	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4975	{
4976	switch (value)
4977	{
4978	case SVGA3D_TA_CONSTANT:
4979	return D3DTA_CONSTANT;
4980	case SVGA3D_TA_PREVIOUS:
4981	return D3DTA_CURRENT; /* current = previous */
4982	case SVGA3D_TA_DIFFUSE:
4983	return D3DTA_DIFFUSE;
4984	case SVGA3D_TA_TEXTURE:
4985	return D3DTA_TEXTURE;
4986	case SVGA3D_TA_SPECULAR:
4987	return D3DTA_SPECULAR;
4988	default:
4989	AssertFailed();
4990	return 0;
4991	}
4992	}
4993
4994	/**
4995	* Convert SVGA texture transform flag value to its D3D equivalent
4996	*/
4997	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4998	{
4999	switch (value)
5000	{
5001	case SVGA3D_TEX_TRANSFORM_OFF:
5002	return D3DTTFF_DISABLE;
5003	case SVGA3D_TEX_TRANSFORM_S:
5004	return D3DTTFF_COUNT1; /** @todo correct? */
5005	case SVGA3D_TEX_TRANSFORM_T:
5006	return D3DTTFF_COUNT2; /** @todo correct? */
5007	case SVGA3D_TEX_TRANSFORM_R:
5008	return D3DTTFF_COUNT3; /** @todo correct? */
5009	case SVGA3D_TEX_TRANSFORM_Q:
5010	return D3DTTFF_COUNT4; /** @todo correct? */
5011	case SVGA3D_TEX_PROJECTED:
5012	return D3DTTFF_PROJECTED;
5013	default:
5014	AssertFailed();
5015	return 0;
5016	}
5017	}
5018	#endif
5019
5020	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5021	{
5022	switch (value)
5023	{
5024	case SVGA3D_TEX_ADDRESS_WRAP:
5025	return GL_REPEAT;
5026	case SVGA3D_TEX_ADDRESS_MIRROR:
5027	return GL_MIRRORED_REPEAT;
5028	case SVGA3D_TEX_ADDRESS_CLAMP:
5029	return GL_CLAMP_TO_EDGE;
5030	case SVGA3D_TEX_ADDRESS_BORDER:
5031	return GL_CLAMP_TO_BORDER;
5032	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5033	AssertFailed();
5034	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5035
5036	case SVGA3D_TEX_ADDRESS_EDGE:
5037	case SVGA3D_TEX_ADDRESS_INVALID:
5038	default:
5039	AssertFailed();
5040	return GL_REPEAT; /* default */
5041	}
5042	}
5043
5044	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5045	{
5046	switch (value)
5047	{
5048	case SVGA3D_TEX_FILTER_NONE:
5049	case SVGA3D_TEX_FILTER_LINEAR:
5050	return GL_LINEAR;
5051	case SVGA3D_TEX_FILTER_NEAREST:
5052	return GL_NEAREST;
5053	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5054	/** @todo */
5055	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5056	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5057	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5058	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5059	default:
5060	AssertFailed();
5061	return GL_LINEAR; /* default */
5062	}
5063	}
5064
5065	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5066	{
5067	/* flip the red and blue bytes */
5068	uint8_t blue = value & 0xff;
5069	uint8_t red = (value >> 16) & 0xff;
5070	return (value & 0xff00ff00) \| red \| (blue << 16);
5071	}
5072
5073	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5074	{
5075	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5076	GLenum currentStage = ~(GLenum)0;
5077	PVMSVGA3DCONTEXT pContext;
5078	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5079	AssertReturn(pState, VERR_NO_MEMORY);
5080
5081	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5082
5083	if ( cid >= pState->cContexts
5084	\|\| pState->papContexts[cid]->id != cid)
5085	{
5086	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5087	return VERR_INVALID_PARAMETER;
5088	}
5089	pContext = pState->papContexts[cid];
5090	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5091
5092	for (unsigned i = 0; i < cTextureStates; i++)
5093	{
5094	GLenum textureType = ~(GLenum)0;
5095	#if 0
5096	GLenum samplerType = ~(GLenum)0;
5097	#endif
5098
5099	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));
5100	/* Record the texture state for vm state saving. */
5101	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5102	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5103	{
5104	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5105	}
5106
5107	/* Active the right texture unit for subsequent texture state changes. */
5108	if (pTextureState[i].stage != currentStage \|\| i == 0)
5109	{
5110	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5111	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5112	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5113	{
5114	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5115	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5116	currentStage = pTextureState[i].stage;
5117	}
5118	else
5119	{
5120	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5121	continue;
5122	}
5123	}
5124
5125	switch (pTextureState[i].name)
5126	{
5127	case SVGA3D_TS_BUMPENVMAT00: /* float */
5128	case SVGA3D_TS_BUMPENVMAT01: /* float */
5129	case SVGA3D_TS_BUMPENVMAT10: /* float */
5130	case SVGA3D_TS_BUMPENVMAT11: /* float */
5131	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5132	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5133	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5134	break;
5135
5136	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5137	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5138	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5139	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5140	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5141	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5142	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5143	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5144	/** @todo not used by MesaGL */
5145	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5146	break;
5147	#if 0
5148
5149	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5150	textureType = D3DTSS_TEXCOORDINDEX;
5151	val = pTextureState[i].value;
5152	break;
5153
5154	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5155	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5156	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5157	break;
5158	#endif
5159
5160	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5161	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5162	{
5163	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5164	currentStage, pTextureState[i].value, pContext->aSidActiveTextures[currentStage]));
5165
5166	pContext->aSidActiveTextures[currentStage] = SVGA3D_INVALID_ID;
5167	/* Unselect the currently associated texture. */
5168	glBindTexture(GL_TEXTURE_2D, 0);
5169	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5170	/* Necessary for the fixed pipeline. */
5171	glDisable(GL_TEXTURE_2D);
5172	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5173	}
5174	else
5175	{
5176	uint32_t sid = pTextureState[i].value;
5177
5178	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5179	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5180
5181	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5182
5183	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5184	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].mipmapSize.width,
5185	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5186
5187	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5188	{
5189	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5190	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5191	AssertRCReturn(rc, rc);
5192	}
5193
5194	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5195	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5196
5197	/* Necessary for the fixed pipeline. */
5198	glEnable(GL_TEXTURE_2D);
5199	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5200
5201	if (pContext->aSidActiveTextures[currentStage] != sid)
5202	{
5203	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5204	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5205	{
5206	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5207	{
5208	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5209
5210	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5211	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5212	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5213	}
5214	}
5215	}
5216	pContext->aSidActiveTextures[currentStage] = sid;
5217	}
5218	/* Finished; continue with the next one. */
5219	continue;
5220
5221	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5222	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5223	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5224	break;
5225
5226	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5227	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5228	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5229	break;
5230
5231	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5232	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5233	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5234	break;
5235
5236	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5237	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5238	{
5239	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5240	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5241
5242	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5243	textureType = GL_TEXTURE_MIN_FILTER;
5244	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5245	{
5246	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5247	{
5248	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5249	val = GL_NEAREST_MIPMAP_LINEAR;
5250	else
5251	val = GL_NEAREST_MIPMAP_NEAREST;
5252	}
5253	else
5254	{
5255	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5256	val = GL_LINEAR_MIPMAP_LINEAR;
5257	else
5258	val = GL_LINEAR_MIPMAP_NEAREST;
5259	}
5260	}
5261	else
5262	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5263	break;
5264	}
5265
5266	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5267	textureType = GL_TEXTURE_MAG_FILTER;
5268	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5269	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5270	break;
5271
5272	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5273	{
5274	GLfloat color[4]; /* red, green, blue, alpha */
5275
5276	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5277
5278	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5279	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5280	break;
5281	}
5282
5283	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5284	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5285	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5286	break;
5287
5288	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5289	textureType = GL_TEXTURE_BASE_LEVEL;
5290	val = pTextureState[i].value;
5291	break;
5292
5293	#if 0
5294	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5295	samplerType = D3DSAMP_MAXANISOTROPY;
5296	val = pTextureState[i].value; /* Identical?? */
5297	break;
5298
5299	case SVGA3D_TS_GAMMA: /* float */
5300	samplerType = D3DSAMP_SRGBTEXTURE;
5301	/* Boolean in D3D */
5302	if (pTextureState[i].floatValue == 1.0f)
5303	val = FALSE;
5304	else
5305	val = TRUE;
5306	break;
5307	#endif
5308	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5309	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5310	AssertFailed();
5311	break;
5312
5313	default:
5314	//AssertFailed();
5315	break;
5316	}
5317
5318	if (textureType != ~(GLenum)0)
5319	{
5320	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5322	}
5323	}
5324
5325	return VINF_SUCCESS;
5326	}
5327
5328	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5329	{
5330	PVMSVGA3DCONTEXT pContext;
5331	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5332	AssertReturn(pState, VERR_NO_MEMORY);
5333	GLenum oglFace;
5334
5335	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5336
5337	if ( cid >= pState->cContexts
5338	\|\| pState->papContexts[cid]->id != cid)
5339	{
5340	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5341	return VERR_INVALID_PARAMETER;
5342	}
5343	pContext = pState->papContexts[cid];
5344	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5345
5346	switch (face)
5347	{
5348	case SVGA3D_FACE_NONE:
5349	case SVGA3D_FACE_FRONT:
5350	oglFace = GL_FRONT;
5351	break;
5352
5353	case SVGA3D_FACE_BACK:
5354	oglFace = GL_BACK;
5355	break;
5356
5357	case SVGA3D_FACE_FRONT_BACK:
5358	oglFace = GL_FRONT_AND_BACK;
5359	break;
5360
5361	default:
5362	AssertFailedReturn(VERR_INVALID_PARAMETER);
5363	}
5364
5365	/* Save for vm state save/restore. */
5366	pContext->state.aMaterial[face].fValid = true;
5367	pContext->state.aMaterial[face].material = *pMaterial;
5368	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5369
5370	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5371	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5372	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5373	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5374	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5375	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5376
5377	return VINF_SUCCESS;
5378	}
5379
5380	/** @todo Move into separate library as we are using logic from Wine here. */
5381	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5382	{
5383	PVMSVGA3DCONTEXT pContext;
5384	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5385	AssertReturn(pState, VERR_NO_MEMORY);
5386	float QuadAttenuation;
5387
5388	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5389
5390	if ( cid >= pState->cContexts
5391	\|\| pState->papContexts[cid]->id != cid)
5392	{
5393	Log(("vmsvga3dSetLightData invalid context id!\n"));
5394	return VERR_INVALID_PARAMETER;
5395	}
5396	pContext = pState->papContexts[cid];
5397	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5398
5399	/* Store for vm state save/restore */
5400	if (index < SVGA3D_MAX_LIGHTS)
5401	{
5402	pContext->state.aLightData[index].fValidData = true;
5403	pContext->state.aLightData[index].data = *pData;
5404	}
5405	else
5406	AssertFailed();
5407
5408	if ( pData->attenuation0 < 0.0f
5409	\|\| pData->attenuation1 < 0.0f
5410	\|\| pData->attenuation2 < 0.0f)
5411	{
5412	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5413	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5414	}
5415
5416	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5417	glMatrixMode(GL_MODELVIEW);
5418	glPushMatrix();
5419	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5420
5421	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5422	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5423	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5424
5425	if (pData->range * pData->range >= FLT_MIN)
5426	QuadAttenuation = 1.4f / (pData->range * pData->range);
5427	else
5428	QuadAttenuation = 0.0f;
5429
5430	switch (pData->type)
5431	{
5432	case SVGA3D_LIGHTTYPE_POINT:
5433	{
5434	GLfloat position[4];
5435
5436	position[0] = pData->position[0];
5437	position[1] = pData->position[1];
5438	position[2] = pData->position[2];
5439	position[3] = 1.0f;
5440
5441	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5442	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5443
5444	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5445	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5446
5447	/* Attenuation - Are these right? guessing... */
5448	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5449	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5450
5451	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5452	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5453
5454	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5455	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5456
5457	/** @todo range */
5458	break;
5459	}
5460
5461	case SVGA3D_LIGHTTYPE_SPOT1:
5462	{
5463	GLfloat exponent;
5464	GLfloat position[4];
5465	const GLfloat pi = 4.0f * atanf(1.0f);
5466
5467	position[0] = pData->position[0];
5468	position[1] = pData->position[1];
5469	position[2] = pData->position[2];
5470	position[3] = 1.0f;
5471
5472	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5473	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5474
5475	position[0] = pData->direction[0];
5476	position[1] = pData->direction[1];
5477	position[2] = pData->direction[2];
5478	position[3] = 1.0f;
5479
5480	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5481	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5482
5483	/*
5484	* opengl-ish and d3d-ish spot lights use too different models for the
5485	* light "intensity" as a function of the angle towards the main light direction,
5486	* so we only can approximate very roughly.
5487	* however spot lights are rather rarely used in games (if ever used at all).
5488	* furthermore if still used, probably nobody pays attention to such details.
5489	*/
5490	if (pData->falloff == 0)
5491	{
5492	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5493	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5494	* will always be 1.0 for both of them, and we don't have to care for the
5495	* rest of the rather complex calculation
5496	*/
5497	exponent = 0.0f;
5498	}
5499	else
5500	{
5501	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5502	if (rho < 0.0001f)
5503	rho = 0.0001f;
5504	exponent = -0.3f/log(cos(rho/2));
5505	}
5506	if (exponent > 128.0f)
5507	exponent = 128.0f;
5508
5509	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5510	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5511
5512	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5513	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5514
5515	/* Attenuation - Are these right? guessing... */
5516	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5517	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5518
5519	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5520	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5521
5522	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5523	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5524
5525	/** @todo range */
5526	break;
5527	}
5528
5529	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5530	{
5531	GLfloat position[4];
5532
5533	position[0] = -pData->direction[0];
5534	position[1] = -pData->direction[1];
5535	position[2] = -pData->direction[2];
5536	position[3] = 0.0f;
5537
5538	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5539	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5540
5541	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5542	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5543
5544	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5545	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5546	break;
5547	}
5548
5549	case SVGA3D_LIGHTTYPE_SPOT2:
5550	default:
5551	Log(("Unsupported light type!!\n"));
5552	return VERR_INVALID_PARAMETER;
5553	}
5554
5555	/* Restore the modelview matrix */
5556	glPopMatrix();
5557
5558	return VINF_SUCCESS;
5559	}
5560
5561	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5562	{
5563	PVMSVGA3DCONTEXT pContext;
5564	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5565	AssertReturn(pState, VERR_NO_MEMORY);
5566
5567	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5568
5569	if ( cid >= pState->cContexts
5570	\|\| pState->papContexts[cid]->id != cid)
5571	{
5572	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5573	return VERR_INVALID_PARAMETER;
5574	}
5575	pContext = pState->papContexts[cid];
5576	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5577
5578	/* Store for vm state save/restore */
5579	if (index < SVGA3D_MAX_LIGHTS)
5580	pContext->state.aLightData[index].fEnabled = !!enabled;
5581	else
5582	AssertFailed();
5583
5584	if (enabled)
5585	{
5586	/* Load the default settings if none have been set yet. */
5587	if (!pContext->state.aLightData[index].fValidData)
5588	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5589	glEnable(GL_LIGHT0 + index);
5590	}
5591	else
5592	glDisable(GL_LIGHT0 + index);
5593
5594	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5595	return VINF_SUCCESS;
5596	}
5597
5598	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5599	{
5600	PVMSVGA3DCONTEXT pContext;
5601	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5602	AssertReturn(pState, VERR_NO_MEMORY);
5603
5604	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5605
5606	if ( cid >= pState->cContexts
5607	\|\| pState->papContexts[cid]->id != cid)
5608	{
5609	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5610	return VERR_INVALID_PARAMETER;
5611	}
5612	pContext = pState->papContexts[cid];
5613	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5614
5615	/* Save for vm state save/restore. */
5616	pContext->state.RectViewPort = *pRect;
5617	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5618
5619	/** @todo y-inversion for partial viewport coordinates? */
5620	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5621	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5622
5623	/* Reset the projection matrix as that relies on the viewport setting. */
5624	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5625	{
5626	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5627	}
5628	else
5629	{
5630	float matrix[16];
5631
5632	/* identity matrix if no matrix set. */
5633	memset(matrix, 0, sizeof(matrix));
5634	matrix[0] = 1.0;
5635	matrix[5] = 1.0;
5636	matrix[10] = 1.0;
5637	matrix[15] = 1.0;
5638	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5639	}
5640
5641	return VINF_SUCCESS;
5642	}
5643
5644	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5645	{
5646	PVMSVGA3DCONTEXT pContext;
5647	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5648	AssertReturn(pState, VERR_NO_MEMORY);
5649	double oglPlane[4];
5650
5651	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)));
5652	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5653
5654	if ( cid >= pState->cContexts
5655	\|\| pState->papContexts[cid]->id != cid)
5656	{
5657	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5658	return VERR_INVALID_PARAMETER;
5659	}
5660	pContext = pState->papContexts[cid];
5661	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5662
5663	/* Store for vm state save/restore. */
5664	pContext->state.aClipPlane[index].fValid = true;
5665	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5666
5667	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5668	oglPlane[0] = (double)plane[0];
5669	oglPlane[1] = (double)plane[1];
5670	oglPlane[2] = (double)plane[2];
5671	oglPlane[3] = (double)plane[3];
5672
5673	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5674	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5675
5676	return VINF_SUCCESS;
5677	}
5678
5679	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5680	{
5681	PVMSVGA3DCONTEXT pContext;
5682	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5683	AssertReturn(pState, VERR_NO_MEMORY);
5684
5685	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5686
5687	if ( cid >= pState->cContexts
5688	\|\| pState->papContexts[cid]->id != cid)
5689	{
5690	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5691	return VERR_INVALID_PARAMETER;
5692	}
5693	pContext = pState->papContexts[cid];
5694	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5695
5696	/* Store for vm state save/restore. */
5697	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5698	pContext->state.RectScissor = *pRect;
5699
5700	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5701	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5702
5703	return VINF_SUCCESS;
5704	}
5705
5706	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5707	{
5708	/* Convert byte color components to float (0-1.0) */
5709	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5710	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5711	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5712	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5713	}
5714
5715	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5716	uint32_t cRects, SVGA3dRect *pRect)
5717	{
5718	GLbitfield mask = 0;
5719	PVMSVGA3DCONTEXT pContext;
5720	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5721	AssertReturn(pState, VERR_NO_MEMORY);
5722	GLboolean fDepthWriteEnabled = GL_FALSE;
5723
5724	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));
5725
5726	if ( cid >= pState->cContexts
5727	\|\| pState->papContexts[cid]->id != cid)
5728	{
5729	Log(("vmsvga3dCommandClear invalid context id!\n"));
5730	return VERR_INVALID_PARAMETER;
5731	}
5732	pContext = pState->papContexts[cid];
5733	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5734
5735	if (clearFlag & SVGA3D_CLEAR_COLOR)
5736	{
5737	GLfloat red, green, blue, alpha;
5738
5739	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5740
5741	/* Set the color clear value. */
5742	glClearColor(red, green, blue, alpha);
5743
5744	mask \|= GL_COLOR_BUFFER_BIT;
5745	}
5746	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5747	{
5748	/** @todo possibly the same problem as with glDepthMask */
5749	glClearStencil(stencil);
5750	mask \|= GL_STENCIL_BUFFER_BIT;
5751	}
5752	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5753	{
5754	glClearDepth((GLdouble)depth);
5755	mask \|= GL_DEPTH_BUFFER_BIT;
5756
5757	/* glClear will not clear the depth buffer if writing is disabled. */
5758	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5759	if (fDepthWriteEnabled == GL_FALSE)
5760	glDepthMask(GL_TRUE);
5761	}
5762
5763	if (cRects)
5764	{
5765	/* Save the current scissor test bit and scissor box. */
5766	glPushAttrib(GL_SCISSOR_BIT);
5767	glEnable(GL_SCISSOR_TEST);
5768	for (unsigned i=0; i < cRects; i++)
5769	{
5770	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));
5771	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5772	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5773	glClear(mask);
5774	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5775	}
5776	/* Restore the old scissor test bit and box */
5777	glPopAttrib();
5778	}
5779	else
5780	{
5781	glClear(mask);
5782	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5783	}
5784
5785	/* Restore depth write state. */
5786	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5787	&& fDepthWriteEnabled == GL_FALSE)
5788	glDepthMask(GL_FALSE);
5789
5790	return VINF_SUCCESS;
5791	}
5792
5793	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5794	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5795	{
5796	normalized = GL_FALSE;
5797	switch (identity.type)
5798	{
5799	case SVGA3D_DECLTYPE_FLOAT1:
5800	size = 1;
5801	type = GL_FLOAT;
5802	break;
5803	case SVGA3D_DECLTYPE_FLOAT2:
5804	size = 2;
5805	type = GL_FLOAT;
5806	break;
5807	case SVGA3D_DECLTYPE_FLOAT3:
5808	size = 3;
5809	type = GL_FLOAT;
5810	break;
5811	case SVGA3D_DECLTYPE_FLOAT4:
5812	size = 4;
5813	type = GL_FLOAT;
5814	break;
5815
5816	case SVGA3D_DECLTYPE_D3DCOLOR:
5817	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5818	type = GL_UNSIGNED_BYTE;
5819	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5820	break;
5821
5822	case SVGA3D_DECLTYPE_UBYTE4N:
5823	normalized = GL_TRUE;
5824	RT_FALL_THRU();
5825	case SVGA3D_DECLTYPE_UBYTE4:
5826	size = 4;
5827	type = GL_UNSIGNED_BYTE;
5828	break;
5829
5830	case SVGA3D_DECLTYPE_SHORT2N:
5831	normalized = GL_TRUE;
5832	RT_FALL_THRU();
5833	case SVGA3D_DECLTYPE_SHORT2:
5834	size = 2;
5835	type = GL_SHORT;
5836	break;
5837
5838	case SVGA3D_DECLTYPE_SHORT4N:
5839	normalized = GL_TRUE;
5840	RT_FALL_THRU();
5841	case SVGA3D_DECLTYPE_SHORT4:
5842	size = 4;
5843	type = GL_SHORT;
5844	break;
5845
5846	case SVGA3D_DECLTYPE_USHORT4N:
5847	normalized = GL_TRUE;
5848	size = 4;
5849	type = GL_UNSIGNED_SHORT;
5850	break;
5851
5852	case SVGA3D_DECLTYPE_USHORT2N:
5853	normalized = GL_TRUE;
5854	size = 2;
5855	type = GL_UNSIGNED_SHORT;
5856	break;
5857
5858	case SVGA3D_DECLTYPE_UDEC3:
5859	size = 3;
5860	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5861	break;
5862
5863	case SVGA3D_DECLTYPE_DEC3N:
5864	normalized = true;
5865	size = 3;
5866	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5867	break;
5868
5869	case SVGA3D_DECLTYPE_FLOAT16_2:
5870	size = 2;
5871	type = GL_HALF_FLOAT;
5872	break;
5873	case SVGA3D_DECLTYPE_FLOAT16_4:
5874	size = 4;
5875	type = GL_HALF_FLOAT;
5876	break;
5877	default:
5878	AssertFailedReturn(VERR_INVALID_PARAMETER);
5879	}
5880
5881	//pVertexElement->Method = identity.method;
5882	//pVertexElement->Usage = identity.usage;
5883
5884	return VINF_SUCCESS;
5885	}
5886
5887	/* Convert VMWare primitive type to its OpenGL equivalent. */
5888	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5889	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5890	{
5891	switch (PrimitiveType)
5892	{
5893	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5894	*pMode = GL_TRIANGLES;
5895	pcVertices = cPrimitiveCount 3;
5896	break;
5897	case SVGA3D_PRIMITIVE_POINTLIST:
5898	*pMode = GL_POINTS;
5899	*pcVertices = cPrimitiveCount;
5900	break;
5901	case SVGA3D_PRIMITIVE_LINELIST:
5902	*pMode = GL_LINES;
5903	pcVertices = cPrimitiveCount 2;
5904	break;
5905	case SVGA3D_PRIMITIVE_LINESTRIP:
5906	*pMode = GL_LINE_STRIP;
5907	*pcVertices = cPrimitiveCount + 1;
5908	break;
5909	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5910	*pMode = GL_TRIANGLE_STRIP;
5911	*pcVertices = cPrimitiveCount + 2;
5912	break;
5913	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5914	*pMode = GL_TRIANGLE_FAN;
5915	*pcVertices = cPrimitiveCount + 2;
5916	break;
5917	default:
5918	return VERR_INVALID_PARAMETER;
5919	}
5920	return VINF_SUCCESS;
5921	}
5922
5923	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5924	{
5925	int rc;
5926
5927	/* Reset the view matrix (also takes the world matrix into account). */
5928	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5929	{
5930	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5931	}
5932	else
5933	{
5934	float matrix[16];
5935
5936	/* identity matrix if no matrix set. */
5937	memset(matrix, 0, sizeof(matrix));
5938	matrix[0] = 1.0;
5939	matrix[5] = 1.0;
5940	matrix[10] = 1.0;
5941	matrix[15] = 1.0;
5942	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5943	}
5944
5945	/* Reset the projection matrix. */
5946	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5947	{
5948	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5949	}
5950	else
5951	{
5952	float matrix[16];
5953
5954	/* identity matrix if no matrix set. */
5955	memset(matrix, 0, sizeof(matrix));
5956	matrix[0] = 1.0;
5957	matrix[5] = 1.0;
5958	matrix[10] = 1.0;
5959	matrix[15] = 1.0;
5960	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5961	}
5962	AssertRC(rc);
5963	return rc;
5964	}
5965
5966	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5967	{
5968	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5969	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5970	PVMSVGA3DSURFACE pVertexSurface;
5971
5972	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5973	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5974
5975	pVertexSurface = pState->papSurfaces[sidVertex];
5976	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5977
5978	/* Create and/or bind the vertex buffer. */
5979	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5980	{
5981	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5982	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5983	pContext = &pState->SharedCtx;
5984	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5985
5986	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5988
5989	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5991
5992	Assert(pVertexSurface->fDirty);
5993	/** @todo rethink usage dynamic/static */
5994	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5996
5997	pVertexSurface->pMipmapLevels[0].fDirty = false;
5998	pVertexSurface->fDirty = false;
5999
6000	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6001
6002	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6003	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6004
6005	pContext = pSavedCtx;
6006	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6007	}
6008
6009	Assert(pVertexSurface->fDirty == false);
6010	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6011	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6012
6013	/* Setup the vertex declarations. */
6014	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6015	{
6016	GLint size;
6017	GLenum type;
6018	GLboolean normalized;
6019	GLuint index = iVertexDeclBase + iVertex;
6020
6021	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));
6022
6023	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6024	AssertRCReturn(rc, rc);
6025
6026	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6027	{
6028	/* Use numbered vertex arrays when shaders are active. */
6029	pState->ext.glEnableVertexAttribArray(index);
6030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6031	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6032	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6033	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6034	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6035	}
6036	else
6037	{
6038	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6039	switch (pVertexDecl[iVertex].identity.usage)
6040	{
6041	case SVGA3D_DECLUSAGE_POSITIONT:
6042	case SVGA3D_DECLUSAGE_POSITION:
6043	{
6044	glEnableClientState(GL_VERTEX_ARRAY);
6045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6046	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6047	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6048	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6049	break;
6050	}
6051	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6052	AssertFailed();
6053	break;
6054	case SVGA3D_DECLUSAGE_BLENDINDICES:
6055	AssertFailed();
6056	break;
6057	case SVGA3D_DECLUSAGE_NORMAL:
6058	glEnableClientState(GL_NORMAL_ARRAY);
6059	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6060	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6061	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6062	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6063	break;
6064	case SVGA3D_DECLUSAGE_PSIZE:
6065	AssertFailed();
6066	break;
6067	case SVGA3D_DECLUSAGE_TEXCOORD:
6068	/* Specify the affected texture unit. */
6069	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6070	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6071	#else
6072	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6073	#endif
6074	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6076	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6077	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6079	break;
6080	case SVGA3D_DECLUSAGE_TANGENT:
6081	AssertFailed();
6082	break;
6083	case SVGA3D_DECLUSAGE_BINORMAL:
6084	AssertFailed();
6085	break;
6086	case SVGA3D_DECLUSAGE_TESSFACTOR:
6087	AssertFailed();
6088	break;
6089	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6090	glEnableClientState(GL_COLOR_ARRAY);
6091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6092	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6093	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6094	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6095	break;
6096	case SVGA3D_DECLUSAGE_FOG:
6097	glEnableClientState(GL_FOG_COORD_ARRAY);
6098	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6099	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6100	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6101	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6102	break;
6103	case SVGA3D_DECLUSAGE_DEPTH:
6104	AssertFailed();
6105	break;
6106	case SVGA3D_DECLUSAGE_SAMPLE:
6107	AssertFailed();
6108	break;
6109	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6110	}
6111	}
6112
6113	#ifdef LOG_ENABLED
6114	if (pVertexDecl[iVertex].array.stride == 0)
6115	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6116	#endif
6117	}
6118
6119	return VINF_SUCCESS;
6120	}
6121
6122	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6123	{
6124	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6125
6126	/* Clean up the vertex declarations. */
6127	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6128	{
6129	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6130	{
6131	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6132	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6133	vmsvga3dResetTransformMatrices(pThis, pContext);
6134	}
6135
6136	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6137	{
6138	/* Use numbered vertex arrays when shaders are active. */
6139	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6141	}
6142	else
6143	{
6144	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6145	switch (pVertexDecl[iVertex].identity.usage)
6146	{
6147	case SVGA3D_DECLUSAGE_POSITION:
6148	case SVGA3D_DECLUSAGE_POSITIONT:
6149	glDisableClientState(GL_VERTEX_ARRAY);
6150	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6151	break;
6152	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6153	break;
6154	case SVGA3D_DECLUSAGE_BLENDINDICES:
6155	break;
6156	case SVGA3D_DECLUSAGE_NORMAL:
6157	glDisableClientState(GL_NORMAL_ARRAY);
6158	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6159	break;
6160	case SVGA3D_DECLUSAGE_PSIZE:
6161	break;
6162	case SVGA3D_DECLUSAGE_TEXCOORD:
6163	/* Specify the affected texture unit. */
6164	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6165	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6166	#else
6167	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6168	#endif
6169	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6171	break;
6172	case SVGA3D_DECLUSAGE_TANGENT:
6173	break;
6174	case SVGA3D_DECLUSAGE_BINORMAL:
6175	break;
6176	case SVGA3D_DECLUSAGE_TESSFACTOR:
6177	break;
6178	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6179	glDisableClientState(GL_COLOR_ARRAY);
6180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6181	break;
6182	case SVGA3D_DECLUSAGE_FOG:
6183	glDisableClientState(GL_FOG_COORD_ARRAY);
6184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6185	break;
6186	case SVGA3D_DECLUSAGE_DEPTH:
6187	break;
6188	case SVGA3D_DECLUSAGE_SAMPLE:
6189	break;
6190	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6191	}
6192	}
6193	}
6194	/* Unbind the vertex buffer after usage. */
6195	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6197	return VINF_SUCCESS;
6198	}
6199
6200	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6201	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6202	SVGA3dVertexDivisor *pVertexDivisor)
6203	{
6204	RT_NOREF(pVertexDivisor);
6205	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6206	AssertReturn(pState, VERR_INTERNAL_ERROR);
6207	PVMSVGA3DCONTEXT pContext;
6208	int rc = VERR_NOT_IMPLEMENTED;
6209	uint32_t iCurrentVertex;
6210
6211	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6212
6213	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6214	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6215	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6216	/** @todo Non-zero cVertexDivisor */
6217	Assert(!cVertexDivisor);
6218
6219	if ( cid >= pState->cContexts
6220	\|\| pState->papContexts[cid]->id != cid)
6221	{
6222	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6223	return VERR_INVALID_PARAMETER;
6224	}
6225	pContext = pState->papContexts[cid];
6226	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6227
6228	/* Check for pretransformed vertex declarations. */
6229	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6230	{
6231	switch (pVertexDecl[iVertex].identity.usage)
6232	{
6233	case SVGA3D_DECLUSAGE_POSITIONT:
6234	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6235	RT_FALL_THRU();
6236	case SVGA3D_DECLUSAGE_POSITION:
6237	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6238	pContext->state.RectViewPort.h,
6239	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6240	break;
6241	default: /* Shut up MSC. */ break;
6242	}
6243	}
6244
6245	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6246	if (pContext->pShaderContext)
6247	{
6248	uint32_t rtHeight = 0;
6249
6250	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6251	{
6252	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
6253	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6254	}
6255
6256	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6257	}
6258
6259	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6260	iCurrentVertex = 0;
6261	while (iCurrentVertex < numVertexDecls)
6262	{
6263	uint32_t sidVertex = SVGA_ID_INVALID;
6264	uint32_t iVertex;
6265
6266	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6267	{
6268	if ( sidVertex != SVGA_ID_INVALID
6269	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6270	)
6271	break;
6272	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6273	}
6274
6275	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6276	AssertRCReturn(rc, rc);
6277
6278	iCurrentVertex = iVertex;
6279	}
6280
6281	/* Now draw the primitives. */
6282	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6283	{
6284	GLenum modeDraw;
6285	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6286	PVMSVGA3DSURFACE pIndexSurface = NULL;
6287	unsigned cVertices;
6288
6289	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6290	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6291	if (RT_FAILURE(rc))
6292	{
6293	AssertRC(rc);
6294	goto internal_error;
6295	}
6296
6297	if (sidIndex != SVGA3D_INVALID_ID)
6298	{
6299	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6300
6301	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6302	\|\| sidIndex >= pState->cSurfaces
6303	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6304	{
6305	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6306	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6307	rc = VERR_INVALID_PARAMETER;
6308	goto internal_error;
6309	}
6310	pIndexSurface = pState->papSurfaces[sidIndex];
6311	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6312
6313	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6314	{
6315	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6316	pContext = &pState->SharedCtx;
6317	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6318
6319	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6320	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6321
6322	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6323	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6324
6325	Assert(pIndexSurface->fDirty);
6326
6327	/** @todo rethink usage dynamic/static */
6328	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6329	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6330
6331	pIndexSurface->pMipmapLevels[0].fDirty = false;
6332	pIndexSurface->fDirty = false;
6333
6334	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6335
6336	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6337	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6338
6339	pContext = pState->papContexts[cid];
6340	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6341	}
6342	Assert(pIndexSurface->fDirty == false);
6343
6344	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6346	}
6347
6348	if (!pIndexSurface)
6349	{
6350	/* Render without an index buffer */
6351	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6352	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6353	}
6354	else
6355	{
6356	GLenum indexType;
6357
6358	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6359	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6360
6361	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6362	{
6363	indexType = GL_UNSIGNED_BYTE;
6364	}
6365	else
6366	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6367	{
6368	indexType = GL_UNSIGNED_SHORT;
6369	}
6370	else
6371	{
6372	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6373	indexType = GL_UNSIGNED_INT;
6374	}
6375
6376	/* Render with an index buffer */
6377	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));
6378	if (pRange[iPrimitive].indexBias == 0)
6379	glDrawElements(modeDraw,
6380	cVertices,
6381	indexType,
6382	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6383	else
6384	pState->ext.glDrawElementsBaseVertex(modeDraw,
6385	cVertices,
6386	indexType,
6387	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6388	pRange[iPrimitive].indexBias); /* basevertex */
6389
6390	/* Unbind the index buffer after usage. */
6391	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6392	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6393	}
6394	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6395	}
6396
6397	internal_error:
6398
6399	/* Deactivate the vertex declarations. */
6400	iCurrentVertex = 0;
6401	while (iCurrentVertex < numVertexDecls)
6402	{
6403	uint32_t sidVertex = SVGA_ID_INVALID;
6404	uint32_t iVertex;
6405
6406	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6407	{
6408	if ( sidVertex != SVGA_ID_INVALID
6409	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6410	)
6411	break;
6412	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6413	}
6414
6415	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6416	AssertRCReturn(rc, rc);
6417
6418	iCurrentVertex = iVertex;
6419	}
6420	#ifdef DEBUG
6421	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
6422	{
6423	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6424	{
6425	GLint activeTexture = 0;
6426	GLint activeTextureUnit = 0;
6427
6428	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6429	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6430	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6431	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6432
6433	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6434	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6435	pState->ext.glActiveTexture(activeTextureUnit);
6436	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6437
6438	# 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. */
6439	if (pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6440	{
6441	PVMSVGA3DSURFACE pTexture;
6442	pTexture = pState->papSurfaces[pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0]];
6443
6444	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6445	}
6446	# else
6447	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTextures[i]];
6448	AssertMsg(pTexture->id == pContext->aSidActiveTextures[i], ("%x vs %x\n", pTexture->id, pContext->aSidActiveTextures[i]));
6449	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6450	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6451	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6452	# endif
6453	}
6454	}
6455	#endif
6456
6457	#ifdef DEBUG_GFX_WINDOW
6458	if (pContext->sidRenderTarget)
6459	{
6460	SVGA3dCopyRect rect;
6461
6462	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6463	rect.w = pContext->state.RectViewPort.w;
6464	rect.h = pContext->state.RectViewPort.h;
6465	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6466	}
6467	#endif
6468
6469	return rc;
6470	}
6471
6472
6473	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6474	{
6475	PVMSVGA3DCONTEXT pContext;
6476	PVMSVGA3DSHADER pShader;
6477	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6478	AssertReturn(pState, VERR_NO_MEMORY);
6479	int rc;
6480
6481	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6482	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6483
6484	if ( cid >= pState->cContexts
6485	\|\| pState->papContexts[cid]->id != cid)
6486	{
6487	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6488	return VERR_INVALID_PARAMETER;
6489	}
6490	pContext = pState->papContexts[cid];
6491	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6492
6493	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6494	if (type == SVGA3D_SHADERTYPE_VS)
6495	{
6496	if (shid >= pContext->cVertexShaders)
6497	{
6498	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6499	AssertReturn(pvNew, VERR_NO_MEMORY);
6500	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6501	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6502	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6503	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6504	pContext->cVertexShaders = shid + 1;
6505	}
6506	/* If one already exists with this id, then destroy it now. */
6507	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6508	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6509
6510	pShader = &pContext->paVertexShader[shid];
6511	}
6512	else
6513	{
6514	Assert(type == SVGA3D_SHADERTYPE_PS);
6515	if (shid >= pContext->cPixelShaders)
6516	{
6517	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6518	AssertReturn(pvNew, VERR_NO_MEMORY);
6519	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6520	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6521	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6522	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6523	pContext->cPixelShaders = shid + 1;
6524	}
6525	/* If one already exists with this id, then destroy it now. */
6526	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6527	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6528
6529	pShader = &pContext->paPixelShader[shid];
6530	}
6531
6532	memset(pShader, 0, sizeof(*pShader));
6533	pShader->id = shid;
6534	pShader->cid = cid;
6535	pShader->type = type;
6536	pShader->cbData = cbData;
6537	pShader->pShaderProgram = RTMemAllocZ(cbData);
6538	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6539	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6540
6541	#ifdef DUMP_SHADER_DISASSEMBLY
6542	LPD3DXBUFFER pDisassembly;
6543	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6544	if (hr == D3D_OK)
6545	{
6546	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6547	pDisassembly->Release();
6548	}
6549	#endif
6550
6551	switch (type)
6552	{
6553	case SVGA3D_SHADERTYPE_VS:
6554	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6555	break;
6556
6557	case SVGA3D_SHADERTYPE_PS:
6558	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6559	break;
6560
6561	default:
6562	AssertFailedReturn(VERR_INVALID_PARAMETER);
6563	}
6564	if (rc != VINF_SUCCESS)
6565	{
6566	RTMemFree(pShader->pShaderProgram);
6567	memset(pShader, 0, sizeof(*pShader));
6568	pShader->id = SVGA3D_INVALID_ID;
6569	}
6570
6571	return rc;
6572	}
6573
6574	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6575	{
6576	PVMSVGA3DCONTEXT pContext;
6577	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6578	AssertReturn(pState, VERR_NO_MEMORY);
6579	PVMSVGA3DSHADER pShader = NULL;
6580	int rc;
6581
6582	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6583
6584	if ( cid >= pState->cContexts
6585	\|\| pState->papContexts[cid]->id != cid)
6586	{
6587	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6588	return VERR_INVALID_PARAMETER;
6589	}
6590	pContext = pState->papContexts[cid];
6591	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6592
6593	if (type == SVGA3D_SHADERTYPE_VS)
6594	{
6595	if ( shid < pContext->cVertexShaders
6596	&& pContext->paVertexShader[shid].id == shid)
6597	{
6598	pShader = &pContext->paVertexShader[shid];
6599	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6600	AssertRC(rc);
6601	}
6602	}
6603	else
6604	{
6605	Assert(type == SVGA3D_SHADERTYPE_PS);
6606	if ( shid < pContext->cPixelShaders
6607	&& pContext->paPixelShader[shid].id == shid)
6608	{
6609	pShader = &pContext->paPixelShader[shid];
6610	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6611	AssertRC(rc);
6612	}
6613	}
6614
6615	if (pShader)
6616	{
6617	if (pShader->pShaderProgram)
6618	RTMemFree(pShader->pShaderProgram);
6619	memset(pShader, 0, sizeof(*pShader));
6620	pShader->id = SVGA3D_INVALID_ID;
6621	}
6622	else
6623	AssertFailedReturn(VERR_INVALID_PARAMETER);
6624
6625	return VINF_SUCCESS;
6626	}
6627
6628	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6629	{
6630	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6631	AssertReturn(pState, VERR_NO_MEMORY);
6632	int rc;
6633
6634	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6635
6636	if ( !pContext
6637	&& cid < pState->cContexts
6638	&& pState->papContexts[cid]->id == cid)
6639	pContext = pState->papContexts[cid];
6640	else if (!pContext)
6641	{
6642	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6643	Log(("vmsvga3dShaderSet invalid context id!\n"));
6644	return VERR_INVALID_PARAMETER;
6645	}
6646	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6647
6648	if (type == SVGA3D_SHADERTYPE_VS)
6649	{
6650	/* Save for vm state save/restore. */
6651	pContext->state.shidVertex = shid;
6652	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6653
6654	if ( shid < pContext->cVertexShaders
6655	&& pContext->paVertexShader[shid].id == shid)
6656	{
6657	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6658	Assert(type == pShader->type);
6659
6660	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6661	AssertRCReturn(rc, rc);
6662	}
6663	else
6664	if (shid == SVGA_ID_INVALID)
6665	{
6666	/* Unselect shader. */
6667	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6668	AssertRCReturn(rc, rc);
6669	}
6670	else
6671	AssertFailedReturn(VERR_INVALID_PARAMETER);
6672	}
6673	else
6674	{
6675	/* Save for vm state save/restore. */
6676	pContext->state.shidPixel = shid;
6677	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6678
6679	Assert(type == SVGA3D_SHADERTYPE_PS);
6680	if ( shid < pContext->cPixelShaders
6681	&& pContext->paPixelShader[shid].id == shid)
6682	{
6683	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6684	Assert(type == pShader->type);
6685
6686	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6687	AssertRCReturn(rc, rc);
6688	}
6689	else
6690	if (shid == SVGA_ID_INVALID)
6691	{
6692	/* Unselect shader. */
6693	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6694	AssertRCReturn(rc, rc);
6695	}
6696	else
6697	AssertFailedReturn(VERR_INVALID_PARAMETER);
6698	}
6699
6700	return VINF_SUCCESS;
6701	}
6702
6703	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6704	{
6705	PVMSVGA3DCONTEXT pContext;
6706	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6707	AssertReturn(pState, VERR_NO_MEMORY);
6708	int rc;
6709
6710	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6711
6712	if ( cid >= pState->cContexts
6713	\|\| pState->papContexts[cid]->id != cid)
6714	{
6715	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6716	return VERR_INVALID_PARAMETER;
6717	}
6718	pContext = pState->papContexts[cid];
6719	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6720
6721	for (uint32_t i = 0; i < cRegisters; i++)
6722	{
6723	#ifdef LOG_ENABLED
6724	switch (ctype)
6725	{
6726	case SVGA3D_CONST_TYPE_FLOAT:
6727	{
6728	float pValuesF = (float )pValues;
6729	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)));
6730	break;
6731	}
6732
6733	case SVGA3D_CONST_TYPE_INT:
6734	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6735	break;
6736
6737	case SVGA3D_CONST_TYPE_BOOL:
6738	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6739	break;
6740	}
6741	#endif
6742	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6743	}
6744
6745	switch (type)
6746	{
6747	case SVGA3D_SHADERTYPE_VS:
6748	switch (ctype)
6749	{
6750	case SVGA3D_CONST_TYPE_FLOAT:
6751	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6752	break;
6753
6754	case SVGA3D_CONST_TYPE_INT:
6755	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6756	break;
6757
6758	case SVGA3D_CONST_TYPE_BOOL:
6759	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6760	break;
6761
6762	default:
6763	AssertFailedReturn(VERR_INVALID_PARAMETER);
6764	}
6765	AssertRCReturn(rc, rc);
6766	break;
6767
6768	case SVGA3D_SHADERTYPE_PS:
6769	switch (ctype)
6770	{
6771	case SVGA3D_CONST_TYPE_FLOAT:
6772	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6773	break;
6774
6775	case SVGA3D_CONST_TYPE_INT:
6776	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6777	break;
6778
6779	case SVGA3D_CONST_TYPE_BOOL:
6780	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6781	break;
6782
6783	default:
6784	AssertFailedReturn(VERR_INVALID_PARAMETER);
6785	}
6786	AssertRCReturn(rc, rc);
6787	break;
6788
6789	default:
6790	AssertFailedReturn(VERR_INVALID_PARAMETER);
6791	}
6792
6793	return VINF_SUCCESS;
6794	}
6795
6796	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6797	{
6798	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6799	GLuint idQuery = 0;
6800	pState->ext.glGenQueries(1, &idQuery);
6801	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6802	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6803	pContext->occlusion.idQuery = idQuery;
6804	return VINF_SUCCESS;
6805	}
6806
6807	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6808	{
6809	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6810	if (pContext->occlusion.idQuery)
6811	{
6812	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6813	}
6814	return VINF_SUCCESS;
6815	}
6816
6817	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6818	{
6819	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6820	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6821	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6822	return VINF_SUCCESS;
6823	}
6824
6825	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6826	{
6827	RT_NOREF(pContext);
6828	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6829	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6830	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6831	return VINF_SUCCESS;
6832	}
6833
6834	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6835	{
6836	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6837	GLuint pixels = 0;
6838	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6840
6841	*pu32Pixels = (uint32_t)pixels;
6842	return VINF_SUCCESS;
6843	}

注意: 瀏覽 TracBrowser 來幫助您使用儲存庫瀏覽器

source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 69496

以其他格式下載: