DevVGA-SVGA3d-ogl.cpp@ 76269

Last change on this file since 76269 was 76269, checked in by vboxsync, 6 years ago
DevVGA-SVGA3d: dynamic loading of OpenGL: log failures
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 76269 2018-12-17 18:05:17Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef VMSVGA3D_DYNAMIC_LOAD
67	# define OGLGETPROCADDRESS glLdrGetProcAddress
68	#else
69	#ifdef RT_OS_WINDOWS
70	# define OGLGETPROCADDRESS MyWinGetProcAddress
71	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
72	{
73	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
74	PROC p = wglGetProcAddress(pszSymbol);
75	if (RT_VALID_PTR(p))
76	return p;
77	return 0;
78	}
79	#elif defined(RT_OS_DARWIN)
80	# include <dlfcn.h>
81	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
82	/** Resolves an OpenGL symbol. */
83	static void MyNSGLGetProcAddress(const char pszSymbol)
84	{
85	/* Another copy in shaderapi.c. */
86	static void *s_pvImage = NULL;
87	if (s_pvImage == NULL)
88	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
89	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
90	}
91
92	#else
93	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
94	#endif
95	#endif
96
97	/* Invert y-coordinate for OpenGL's bottom left origin. */
98	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
99	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
100
101	/**
102	* Macro for doing something and then checking for errors during initialization.
103	* Uses AssertLogRelMsg.
104	*/
105	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
106	do \
107	{ \
108	a_Expr; \
109	GLenum iGlError = glGetError(); \
110	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
111	} while (0)
112
113	/**
114	* Macro for doing something and then checking for errors during initialization,
115	* doing the same in the other context when enabled.
116	*
117	* This will try both profiles in dual profile builds. Caller must be in the
118	* default context.
119	*
120	* Uses AssertLogRelMsg to indicate trouble.
121	*/
122	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
123	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
124	do \
125	{ \
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 iGlError = glGetError(); \
129	if (iGlError != GL_NO_ERROR) \
130	{ \
131	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
132	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
133	a_Expr; \
134	GLenum iGlError2 = glGetError(); \
135	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
136	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
137	} \
138	} while (0)
139	#else
140	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
141	#endif
142
143
144	/*********************************************************************************************************************************
145	* Global Variables *
146	*********************************************************************************************************************************/
147	/* Define the default light parameters as specified by MSDN. */
148	/** @todo move out; fetched from Wine */
149	const SVGA3dLightData vmsvga3d_default_light =
150	{
151	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
152	false, /* inWorldSpace */
153	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
154	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
155	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
156	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
157	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
158	0.0f, /* range */
159	0.0f, /* falloff */
160	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
161	0.0f, /* theta */
162	0.0f /* phi */
163	};
164
165
166	/*********************************************************************************************************************************
167	* Internal Functions *
168	*********************************************************************************************************************************/
169	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
170	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
171
172	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
173	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
174
175
176	/**
177	* Checks if the given OpenGL extension is supported.
178	*
179	* @returns true if supported, false if not.
180	* @param pState The VMSVGA3d state.
181	* @param rsMinGLVersion The OpenGL version that introduced this feature
182	* into the core.
183	* @param pszWantedExtension The name of the OpenGL extension we want padded
184	* with one space at each end.
185	* @remarks Init time only.
186	*/
187	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
188	{
189	RT_NOREF(rsMinGLVersion);
190	/* check padding. */
191	Assert(pszWantedExtension[0] == ' ');
192	Assert(pszWantedExtension[1] != ' ');
193	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
194
195	/* Look it up. */
196	bool fRet = false;
197	if (strstr(pState->pszExtensions, pszWantedExtension))
198	fRet = true;
199
200	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
201	#ifdef RT_OS_DARWIN
202	AssertMsg( rsMinGLVersion == 0.0
203	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
204	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
205	("%s actual:%d min:%d fRet=%d\n",
206	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
207	#else
208	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
209	("%s actual:%d min:%d fRet=%d\n",
210	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
211	#endif
212	return fRet;
213	}
214
215
216	/**
217	* Outputs GL_EXTENSIONS list to the release log.
218	*/
219	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
220	{
221	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
222	bool fBuffered = RTLogRelSetBuffering(true);
223
224	/*
225	* Determin the column widths first.
226	*/
227	size_t acchWidths[4] = { 1, 1, 1, 1 };
228	uint32_t i;
229	const char *psz = pszExtensions;
230	for (i = 0; ; i++)
231	{
232	while (*psz == ' ')
233	psz++;
234	if (!*psz)
235	break;
236
237	const char *pszEnd = strchr(psz, ' ');
238	AssertBreak(pszEnd);
239	size_t cch = pszEnd - psz;
240
241	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
242	if (acchWidths[iColumn] < cch)
243	acchWidths[iColumn] = cch;
244
245	psz = pszEnd;
246	}
247
248	/*
249	* Output it.
250	*/
251	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
252	psz = pszExtensions;
253	for (i = 0; ; i++)
254	{
255	while (*psz == ' ')
256	psz++;
257	if (!*psz)
258	break;
259
260	const char *pszEnd = strchr(psz, ' ');
261	AssertBreak(pszEnd);
262	size_t cch = pszEnd - psz;
263
264	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
265	if (iColumn == 0)
266	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
267	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
268	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
269	else
270	LogRel((" %.*s", cch, psz));
271
272	psz = pszEnd;
273	}
274
275	RTLogRelSetBuffering(fBuffered);
276	LogRel(("\n"));
277	}
278
279	/**
280	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
281	* @a ppszExtensions.
282	*
283	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
284	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
285	* @param fGLProfileVersion The OpenGL profile version.
286	*/
287	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
288	{
289	int rc;
290	*ppszExtensions = NULL;
291
292	/*
293	* Try the old glGetString interface first.
294	*/
295	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
296	if (pszExtensions)
297	{
298	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
299	AssertLogRelRCReturn(rc, rc);
300	}
301	else
302	{
303	/*
304	* The new interface where each extension string is retrieved separately.
305	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
306	* the above GL_EXTENSIONS error lingers on darwin. sucks.
307	*/
308	#ifndef GL_NUM_EXTENSIONS
309	# define GL_NUM_EXTENSIONS 0x821D
310	#endif
311	GLint cExtensions = 1024;
312	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
313	Assert(cExtensions != 1024);
314
315	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
316	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
317
318	rc = RTStrAAppend(ppszExtensions, " ");
319	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
320	{
321	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
322	if (pszExt)
323	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
324	}
325	AssertRCReturn(rc, rc);
326	}
327
328	#if 1
329	/*
330	* Add extensions promoted into the core OpenGL profile.
331	*/
332	static const struct
333	{
334	float fGLVersion;
335	const char *pszzExtensions;
336	} s_aPromotedExtensions[] =
337	{
338	{
339	1.1f,
340	" GL_EXT_vertex_array \0"
341	" GL_EXT_polygon_offset \0"
342	" GL_EXT_blend_logic_op \0"
343	" GL_EXT_texture \0"
344	" GL_EXT_copy_texture \0"
345	" GL_EXT_subtexture \0"
346	" GL_EXT_texture_object \0"
347	" GL_ARB_framebuffer_object \0"
348	" GL_ARB_map_buffer_range \0"
349	" GL_ARB_vertex_array_object \0"
350	"\0"
351	},
352	{
353	1.2f,
354	" EXT_texture3D \0"
355	" EXT_bgra \0"
356	" EXT_packed_pixels \0"
357	" EXT_rescale_normal \0"
358	" EXT_separate_specular_color \0"
359	" SGIS_texture_edge_clamp \0"
360	" SGIS_texture_lod \0"
361	" EXT_draw_range_elements \0"
362	"\0"
363	},
364	{
365	1.3f,
366	" GL_ARB_texture_compression \0"
367	" GL_ARB_texture_cube_map \0"
368	" GL_ARB_multisample \0"
369	" GL_ARB_multitexture \0"
370	" GL_ARB_texture_env_add \0"
371	" GL_ARB_texture_env_combine \0"
372	" GL_ARB_texture_env_dot3 \0"
373	" GL_ARB_texture_border_clamp \0"
374	" GL_ARB_transpose_matrix \0"
375	"\0"
376	},
377	{
378	1.5f,
379	" GL_SGIS_generate_mipmap \0"
380	/" GL_NV_blend_equare \0"/
381	" GL_ARB_depth_texture \0"
382	" GL_ARB_shadow \0"
383	" GL_EXT_fog_coord \0"
384	" GL_EXT_multi_draw_arrays \0"
385	" GL_ARB_point_parameters \0"
386	" GL_EXT_secondary_color \0"
387	" GL_EXT_blend_func_separate \0"
388	" GL_EXT_stencil_wrap \0"
389	" GL_ARB_texture_env_crossbar \0"
390	" GL_EXT_texture_lod_bias \0"
391	" GL_ARB_texture_mirrored_repeat \0"
392	" GL_ARB_window_pos \0"
393	"\0"
394	},
395	{
396	1.6f,
397	" GL_ARB_vertex_buffer_object \0"
398	" GL_ARB_occlusion_query \0"
399	" GL_EXT_shadow_funcs \0"
400	},
401	{
402	2.0f,
403	" GL_ARB_shader_objects \0" /??/
404	" GL_ARB_vertex_shader \0" /??/
405	" GL_ARB_fragment_shader \0" /??/
406	" GL_ARB_shading_language_100 \0" /??/
407	" GL_ARB_draw_buffers \0"
408	" GL_ARB_texture_non_power_of_two \0"
409	" GL_ARB_point_sprite \0"
410	" GL_ATI_separate_stencil \0"
411	" GL_EXT_stencil_two_side \0"
412	"\0"
413	},
414	{
415	2.1f,
416	" GL_ARB_pixel_buffer_object \0"
417	" GL_EXT_texture_sRGB \0"
418	"\0"
419	},
420	{
421	3.0f,
422	" GL_ARB_framebuffer_object \0"
423	" GL_ARB_map_buffer_range \0"
424	" GL_ARB_vertex_array_object \0"
425	"\0"
426	},
427	{
428	3.1f,
429	" GL_ARB_copy_buffer \0"
430	" GL_ARB_uniform_buffer_object \0"
431	"\0"
432	},
433	{
434	3.2f,
435	" GL_ARB_vertex_array_bgra \0"
436	" GL_ARB_draw_elements_base_vertex \0"
437	" GL_ARB_fragment_coord_conventions \0"
438	" GL_ARB_provoking_vertex \0"
439	" GL_ARB_seamless_cube_map \0"
440	" GL_ARB_texture_multisample \0"
441	" GL_ARB_depth_clamp \0"
442	" GL_ARB_sync \0"
443	" GL_ARB_geometry_shader4 \0" /??/
444	"\0"
445	},
446	{
447	3.3f,
448	" GL_ARB_blend_func_extended \0"
449	" GL_ARB_sampler_objects \0"
450	" GL_ARB_explicit_attrib_location \0"
451	" GL_ARB_occlusion_query2 \0"
452	" GL_ARB_shader_bit_encoding \0"
453	" GL_ARB_texture_rgb10_a2ui \0"
454	" GL_ARB_texture_swizzle \0"
455	" GL_ARB_timer_query \0"
456	" GL_ARB_vertex_type_2_10_10_10_rev \0"
457	"\0"
458	},
459	{
460	4.0f,
461	" GL_ARB_texture_query_lod \0"
462	" GL_ARB_draw_indirect \0"
463	" GL_ARB_gpu_shader5 \0"
464	" GL_ARB_gpu_shader_fp64 \0"
465	" GL_ARB_shader_subroutine \0"
466	" GL_ARB_tessellation_shader \0"
467	" GL_ARB_texture_buffer_object_rgb32 \0"
468	" GL_ARB_texture_cube_map_array \0"
469	" GL_ARB_texture_gather \0"
470	" GL_ARB_transform_feedback2 \0"
471	" GL_ARB_transform_feedback3 \0"
472	"\0"
473	},
474	{
475	4.1f,
476	" GL_ARB_ES2_compatibility \0"
477	" GL_ARB_get_program_binary \0"
478	" GL_ARB_separate_shader_objects \0"
479	" GL_ARB_shader_precision \0"
480	" GL_ARB_vertex_attrib_64bit \0"
481	" GL_ARB_viewport_array \0"
482	"\0"
483	}
484	};
485
486	uint32_t cPromoted = 0;
487	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
488	{
489	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
490	while (*pszExt)
491	{
492	# ifdef VBOX_STRICT
493	size_t cchExt = strlen(pszExt);
494	Assert(cchExt > 3);
495	Assert(pszExt[0] == ' ');
496	Assert(pszExt[1] != ' ');
497	Assert(pszExt[cchExt - 2] != ' ');
498	Assert(pszExt[cchExt - 1] == ' ');
499	# endif
500
501	if (strstr(*ppszExtensions, pszExt) == NULL)
502	{
503	if (cPromoted++ == 0)
504	{
505	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
506	AssertRCReturn(rc, rc);
507	}
508
509	rc = RTStrAAppend(ppszExtensions, pszExt);
510	AssertRCReturn(rc, rc);
511	}
512
513	pszExt = strchr(pszExt, '\0') + 1;
514	}
515	}
516	#endif
517
518	return VINF_SUCCESS;
519	}
520
521	/** Check whether this is an Intel GL driver.
522	*
523	* @returns true if this seems to be some Intel graphics.
524	*/
525	static bool vmsvga3dIsVendorIntel(void)
526	{
527	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
528	}
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
532	*/
533	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
534	{
535	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
538	#else
539	NOREF(pThis);
540	NOREF(fOtherProfile);
541	#endif
542	}
543
544
545	/**
546	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
547	*/
548	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
549	char *pszBuf, size_t cbBuf, bool fOtherProfile)
550	{
551	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
552	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
553	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
554	while (*pszCur == ' ')
555	pszCur++;
556	if (!*pszCur)
557	return false;
558
559	const char *pszEnd = strchr(pszCur, ' ');
560	AssertReturn(pszEnd, false);
561	size_t cch = pszEnd - pszCur;
562	if (cch < cbBuf)
563	{
564	memcpy(pszBuf, pszCur, cch);
565	pszBuf[cch] = '\0';
566	}
567	else if (cbBuf > 0)
568	{
569	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
570	pszBuf[cbBuf - 1] = '\0';
571	}
572
573	ppvEnumCtx = (void )pszEnd;
574	return true;
575	}
576
577
578	/**
579	* Initializes the VMSVGA3D state during VGA device construction.
580	*
581	* Failure are generally not fatal, 3D support will just be disabled.
582	*
583	* @returns VBox status code.
584	* @param pThis The VGA device state where svga.p3dState will be modified.
585	*/
586	int vmsvga3dInit(PVGASTATE pThis)
587	{
588	int rc;
589
590	AssertCompile(GL_TRUE == 1);
591	AssertCompile(GL_FALSE == 0);
592
593	#ifdef VMSVGA3D_DYNAMIC_LOAD
594	rc = glLdrInit(pThis->pDevInsR3);
595	if (RT_FAILURE(rc))
596	{
597	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
598	return rc;
599	}
600	#endif
601
602	/*
603	* Load and resolve imports from the external shared libraries.
604	*/
605	RTERRINFOSTATIC ErrInfo;
606	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
607	if (RT_FAILURE(rc))
608	{
609	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
610	return rc;
611	}
612	#ifdef RT_OS_DARWIN
613	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
614	if (RT_FAILURE(rc))
615	{
616	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
617	return rc;
618	}
619	#endif
620
621	/*
622	* Allocate the state.
623	*/
624	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
625	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
626
627	#ifdef RT_OS_WINDOWS
628	/* Create event semaphore and async IO thread. */
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	rc = RTSemEventCreate(&pState->WndRequestSem);
631	if (RT_SUCCESS(rc))
632	{
633	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
634	"VMSVGA3DWND");
635	if (RT_SUCCESS(rc))
636	return VINF_SUCCESS;
637
638	/* bail out. */
639	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
640	RTSemEventDestroy(pState->WndRequestSem);
641	}
642	else
643	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
644	RTMemFree(pThis->svga.p3dState);
645	pThis->svga.p3dState = NULL;
646	return rc;
647	#else
648	return VINF_SUCCESS;
649	#endif
650	}
651
652	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
653	{
654	/* A strict approach to get a proc address as recommended by Khronos:
655	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
656	* - "If the function is an extension, we need to check to see if the extension is supported."
657	*/
658
659	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
660	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
661	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
662	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
663	} while(0)
664
665	/* Get an optional function address. LogRel on failure. */
666	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
667	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
668	if (!pState->ext.ProcName) \
669	{ \
670	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
671	AssertFailed(); \
672	} \
673	} while(0)
674
675	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
676	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
677	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
678	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
679	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
680	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
681	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
682	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
683	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
684	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
685	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
686	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
687	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
688	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
689	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
690	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
691	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
692	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
693	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
694	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
695	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
696	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
697	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
698	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
699	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
700	/* glGetProgramivARB determines implementation limits for the program
701	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
702	* It differs from glGetProgramiv, which returns a parameter from a program object.
703	*/
704	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
705	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
706	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
707	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
708	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
709	#endif
710	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
711	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
712	#endif
713
714	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
715	if ( pState->rsGLVersion >= 3.0f
716	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
717	{
718	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
719	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
720	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
721	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
722	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
723	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
724	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
725	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
726	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
727	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
728	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
729	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
730	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
731	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
732	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
733	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
734	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
735	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
736	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
737	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
738	}
739
740	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
741	if (pState->rsGLVersion >= 3.1f)
742	{
743	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
744	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
745	}
746	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
747	{
748	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
749	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
750	}
751	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
752	{
753	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
754	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
755	}
756
757	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
758	if ( pState->rsGLVersion >= 3.2f
759	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
760	{
761	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
762	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
763	}
764
765	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
766	if ( pState->rsGLVersion >= 3.2f
767	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
768	{
769	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
770	}
771
772	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
773	if (pState->rsGLVersion >= 3.3f)
774	{
775	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
776	}
777	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
778	{
779	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
780	}
781
782	#undef GLGETPROCOPT_
783	#undef GLGETPROC_
784
785	return VINF_SUCCESS;
786	}
787
788
789	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
790	int vmsvga3dPowerOn(PVGASTATE pThis)
791	{
792	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
793	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
794	PVMSVGA3DCONTEXT pContext;
795	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
796	PVMSVGA3DCONTEXT pOtherCtx;
797	#endif
798	int rc;
799
800	if (pState->rsGLVersion != 0.0)
801	return VINF_SUCCESS; /* already initialized (load state) */
802
803	/*
804	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
805	*/
806	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
807	AssertRCReturn(rc, rc);
808
809	pContext = pState->papContexts[1];
810	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
811
812	#ifdef VMSVGA3D_DYNAMIC_LOAD
813	/* Context is set and it is possible now to resolve extension functions. */
814	rc = glLdrGetExtFunctions(pThis->pDevInsR3);
815	if (RT_FAILURE(rc))
816	{
817	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
818	return rc;
819	}
820	#endif
821
822	LogRel(("VMSVGA3d: OpenGL version: %s\n"
823	"VMSVGA3d: OpenGL Vendor: %s\n"
824	"VMSVGA3d: OpenGL Renderer: %s\n"
825	"VMSVGA3d: OpenGL shader language version: %s\n",
826	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
827	glGetString(GL_SHADING_LANGUAGE_VERSION)));
828
829	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
830	AssertRCReturn(rc, rc);
831	vmsvga3dLogRelExtensions("", pState->pszExtensions);
832
833	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
834
835
836	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
837	/*
838	* Get the extension list for the alternative profile so we can better
839	* figure out the shader model and stuff.
840	*/
841	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
842	AssertLogRelRCReturn(rc, rc);
843	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
844
845	pOtherCtx = pState->papContexts[2];
846	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
847
848	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
849	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
850	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
851	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
852	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
853	glGetString(GL_SHADING_LANGUAGE_VERSION)));
854
855	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
856	AssertRCReturn(rc, rc);
857	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
858
859	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
860
861	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
862	#else
863	pState->pszOtherExtensions = (char *)"";
864	pState->rsOtherGLVersion = pState->rsGLVersion;
865	#endif
866
867	/*
868	* Resolve GL function pointers and store them in pState->ext.
869	*/
870	rc = vmsvga3dLoadGLFunctions(pState);
871	if (RT_FAILURE(rc))
872	{
873	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
874	return rc;
875	}
876
877	/*
878	* Initialize the capabilities with sensible defaults.
879	*/
880	pState->caps.maxActiveLights = 1;
881	pState->caps.maxTextures = 1;
882	pState->caps.maxClipDistances = 4;
883	pState->caps.maxColorAttachments = 1;
884	pState->caps.maxRectangleTextureSize = 2048;
885	pState->caps.maxTextureAnisotropy = 2;
886	pState->caps.maxVertexShaderInstructions = 1024;
887	pState->caps.maxFragmentShaderInstructions = 1024;
888	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
889	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
890	pState->caps.flPointSize[0] = 1;
891	pState->caps.flPointSize[1] = 1;
892
893	/*
894	* Query capabilities
895	*/
896	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
897	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
898	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
899	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
900	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
901	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
902	#else
903	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
904	#endif
905	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
906	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
907	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
908	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
909
910	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
911	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
912	&pState->caps.maxFragmentShaderTemps));
913	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
914	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
915	&pState->caps.maxFragmentShaderInstructions));
916	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
917	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
918	&pState->caps.maxVertexShaderTemps));
919	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
920	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
921	&pState->caps.maxVertexShaderInstructions));
922
923	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
924
925	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
926	* ARB Assembly Language
927	* These are done through testing the presence of extensions. You should test them in this order:
928	* GL_NV_gpu_program4: SM 4.0 or better.
929	* GL_NV_vertex_program3: SM 3.0 or better.
930	* GL_ARB_fragment_program: SM 2.0 or better.
931	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
932	*
933	*/
934	/** @todo distinguish between vertex and pixel shaders??? */
935	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
936	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
937	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
938	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
939	#else
940	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
941	#endif
942	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
943	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
944	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
945	{
946	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
947	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
948	}
949	else
950	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
951	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
952	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
953	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
954	)
955	{
956	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
957	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
958	}
959	else
960	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
961	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
962	{
963	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
964	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
965	}
966	else
967	{
968	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
969	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
970	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
971	}
972
973	/* Now check the shading language version, in case it indicates a higher supported version. */
974	if (v >= 3.30f)
975	{
976	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
977	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
978	}
979	else
980	if (v >= 1.20f)
981	{
982	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
983	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
984	}
985
986	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
987	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
988	{
989	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
990	}
991
992	/*
993	* Tweak capabilities.
994	*/
995	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
996	if ( pState->caps.maxVertexShaderTemps < 32
997	&& vmsvga3dIsVendorIntel())
998	pState->caps.maxVertexShaderTemps = 32;
999
1000	#if 0
1001	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1002	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1003	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1004	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1005	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1006	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1007	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1008	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1009	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1010	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1011	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1012	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1013	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1014	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1015	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1016	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1017	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1018	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1019	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1020	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1021	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1022	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1023	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1024	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1025	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1026	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1027	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1028	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1029	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1030	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1031	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1032	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1033	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1034	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1035	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1036	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1037	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1038	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1039	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1040	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1041	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1042	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1043	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1044	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1045	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1046	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1047	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1048	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1049	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1050	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1051	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1052	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1053	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1054	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1055	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1056	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1057	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1058	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1059	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1060	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1061	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1062	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1063	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1064	#endif
1065
1066	LogRel(("VMSVGA3d: Capabilities:\n"));
1067	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1068	pState->caps.maxActiveLights, pState->caps.maxTextures));
1069	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1070	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1071	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1072	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1073	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1074	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1075	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1076	pState->caps.maxFragmentShaderTemps,
1077	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1078	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1079	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1080	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1081
1082
1083	/* Initialize the shader library. */
1084	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1085	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1086	rc = ShaderInitLib(&pState->ShaderIf);
1087	AssertRC(rc);
1088
1089	/* Cleanup */
1090	rc = vmsvga3dContextDestroy(pThis, 1);
1091	AssertRC(rc);
1092	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1093	rc = vmsvga3dContextDestroy(pThis, 2);
1094	AssertRC(rc);
1095	#endif
1096
1097	if ( pState->rsGLVersion < 3.0
1098	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1099	{
1100	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1101	return VERR_NOT_IMPLEMENTED;
1102	}
1103
1104	return VINF_SUCCESS;
1105	}
1106
1107	int vmsvga3dReset(PVGASTATE pThis)
1108	{
1109	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1110	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1111
1112	/* Destroy all leftover surfaces. */
1113	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1114	{
1115	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1116	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1117	}
1118
1119	/* Destroy all leftover contexts. */
1120	for (uint32_t i = 0; i < pState->cContexts; i++)
1121	{
1122	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1123	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1124	}
1125
1126	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1127	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1128
1129	return VINF_SUCCESS;
1130	}
1131
1132	int vmsvga3dTerminate(PVGASTATE pThis)
1133	{
1134	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1135	AssertReturn(pState, VERR_WRONG_ORDER);
1136	int rc;
1137
1138	rc = vmsvga3dReset(pThis);
1139	AssertRCReturn(rc, rc);
1140
1141	/* Terminate the shader library. */
1142	rc = ShaderDestroyLib();
1143	AssertRC(rc);
1144
1145	#ifdef RT_OS_WINDOWS
1146	/* Terminate the window creation thread. */
1147	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1148	AssertRCReturn(rc, rc);
1149
1150	RTSemEventDestroy(pState->WndRequestSem);
1151	#elif defined(RT_OS_DARWIN)
1152
1153	#elif defined(RT_OS_LINUX)
1154	/* signal to the thread that it is supposed to exit */
1155	pState->bTerminate = true;
1156	/* wait for it to terminate */
1157	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1158	AssertRC(rc);
1159	XCloseDisplay(pState->display);
1160	#endif
1161
1162	RTStrFree(pState->pszExtensions);
1163	pState->pszExtensions = NULL;
1164	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1165	RTStrFree(pState->pszOtherExtensions);
1166	#endif
1167	pState->pszOtherExtensions = NULL;
1168
1169	return VINF_SUCCESS;
1170	}
1171
1172
1173	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1174	{
1175	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1176	* redraw it. */
1177
1178	#ifdef RT_OS_DARWIN
1179	RT_NOREF(pOldViewport);
1180	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1181	if ( pState
1182	&& idScreen == 0
1183	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1184	{
1185	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1186	}
1187	#else
1188	RT_NOREF(pThis, idScreen, pOldViewport);
1189	#endif
1190	}
1191
1192
1193	/**
1194	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1195	* given surface format capability.
1196	*
1197	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1198	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1199	*
1200	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1201	* of implicit guest expectations:
1202	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1203	*/
1204	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1205	{
1206	uint32_t result = 0;
1207
1208	/** @todo missing:
1209	*
1210	* SVGA3DFORMAT_OP_PIXELSIZE
1211	*/
1212
1213	switch (idx3dCaps)
1214	{
1215	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1216	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1217	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1218	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1219	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1220	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1221	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1222	break;
1223
1224	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1225	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1226	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1227	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1228	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1229	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1230	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1231	break;
1232	}
1233
1234	/** @todo check hardware caps! */
1235	switch (idx3dCaps)
1236	{
1237	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1238	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1239	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1240	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1241	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1242	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1243	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1244	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1245	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1246	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1247	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1248	result \|= SVGA3DFORMAT_OP_TEXTURE
1249	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1250	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1251	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1252	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1253	\| SVGA3DFORMAT_OP_CUBETEXTURE
1254	\| SVGA3DFORMAT_OP_SRGBREAD
1255	\| SVGA3DFORMAT_OP_SRGBWRITE;
1256	break;
1257
1258	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1259	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1260	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1261	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1262	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1263	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1264	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1265	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1266	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1267	break;
1268
1269	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1270	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1271	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1272	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1273	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1274	result \|= SVGA3DFORMAT_OP_TEXTURE
1275	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1276	\| SVGA3DFORMAT_OP_CUBETEXTURE
1277	\| SVGA3DFORMAT_OP_SRGBREAD;
1278	break;
1279
1280	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1281	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1282	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1283	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1284	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1285	break;
1286
1287	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1288	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1289	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1290	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1291	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1292	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1293	result \|= SVGA3DFORMAT_OP_TEXTURE
1294	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1295	\| SVGA3DFORMAT_OP_CUBETEXTURE
1296	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1297	break;
1298
1299	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1300	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1301	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1302	result \|= SVGA3DFORMAT_OP_TEXTURE
1303	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1304	\| SVGA3DFORMAT_OP_CUBETEXTURE
1305	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1306	break;
1307
1308	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1309	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1310	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1311	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1312	break;
1313	}
1314	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1315
1316	return result;
1317	}
1318
1319	#if 0 /* unused */
1320	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1321	{
1322	RT_NOREF(pState3D, idx3dCaps);
1323
1324	/** @todo test this somehow */
1325	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1326
1327	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1328	return result;
1329	}
1330	#endif
1331
1332
1333	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1334	{
1335	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1336	AssertReturn(pState, VERR_NO_MEMORY);
1337	int rc = VINF_SUCCESS;
1338
1339	*pu32Val = 0;
1340
1341	/*
1342	* The capabilities access by current (2015-03-01) linux sources (gallium,
1343	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1344	* aren't access.
1345	*/
1346
1347	switch (idx3dCaps)
1348	{
1349	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1350	case SVGA3D_DEVCAP_3D:
1351	pu32Val = 1; / boolean? */
1352	break;
1353
1354	case SVGA3D_DEVCAP_MAX_LIGHTS:
1355	*pu32Val = pState->caps.maxActiveLights;
1356	break;
1357
1358	case SVGA3D_DEVCAP_MAX_TEXTURES:
1359	*pu32Val = pState->caps.maxTextures;
1360	break;
1361
1362	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1363	*pu32Val = pState->caps.maxClipDistances;
1364	break;
1365
1366	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1367	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1368	*pu32Val = pState->caps.vertexShaderVersion;
1369	break;
1370
1371	case SVGA3D_DEVCAP_VERTEX_SHADER:
1372	/* boolean? */
1373	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1374	break;
1375
1376	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1377	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1378	*pu32Val = pState->caps.fragmentShaderVersion;
1379	break;
1380
1381	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1382	/* boolean? */
1383	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1384	break;
1385
1386	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1387	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1388	/* Must be obsolete by now; surface format caps specify the same thing. */
1389	rc = VERR_INVALID_PARAMETER;
1390	break;
1391
1392	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1393	break;
1394
1395	/*
1396	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1397	* return TRUE. Even on physical hardware that does not support
1398	* these formats natively, the SVGA3D device will provide an emulation
1399	* which should be invisible to the guest OS.
1400	*/
1401	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1402	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1403	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1404	*pu32Val = 1;
1405	break;
1406
1407	case SVGA3D_DEVCAP_QUERY_TYPES:
1408	break;
1409
1410	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1411	break;
1412
1413	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1414	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1415	AssertCompile(sizeof(uint32_t) == sizeof(float));
1416	(float )pu32Val = pState->caps.flPointSize[1];
1417	break;
1418
1419	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1420	/** @todo ?? */
1421	rc = VERR_INVALID_PARAMETER;
1422	break;
1423
1424	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1425	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1426	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1427	*pu32Val = pState->caps.maxRectangleTextureSize;
1428	break;
1429
1430	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1431	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1432	//*pu32Val = pCaps->MaxVolumeExtent;
1433	*pu32Val = 256;
1434	break;
1435
1436	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1437	pu32Val = 32768; / hardcoded in Wine */
1438	break;
1439
1440	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1441	//*pu32Val = pCaps->MaxTextureAspectRatio;
1442	break;
1443
1444	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1445	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1446	*pu32Val = pState->caps.maxTextureAnisotropy;
1447	break;
1448
1449	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1450	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1451	pu32Val = 0xFFFFF; / hardcoded in Wine */
1452	break;
1453
1454	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1455	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1456	*pu32Val = pState->caps.maxVertexShaderInstructions;
1457	break;
1458
1459	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1460	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1461	break;
1462
1463	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1464	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1465	*pu32Val = pState->caps.maxVertexShaderTemps;
1466	break;
1467
1468	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1469	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1470	*pu32Val = pState->caps.maxFragmentShaderTemps;
1471	break;
1472
1473	case SVGA3D_DEVCAP_TEXTURE_OPS:
1474	break;
1475
1476	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1477	break;
1478
1479	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1480	break;
1481
1482	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1483	break;
1484
1485	case SVGA3D_DEVCAP_SUPERSAMPLE:
1486	break;
1487
1488	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1489	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1490	break;
1491
1492	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1493	break;
1494
1495	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1496	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1497	*pu32Val = pState->caps.maxColorAttachments;
1498	break;
1499
1500	/*
1501	* This is the maximum number of SVGA context IDs that the guest
1502	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1503	*/
1504	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1505	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1506	break;
1507
1508	/*
1509	* This is the maximum number of SVGA surface IDs that the guest
1510	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1511	*/
1512	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1513	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1514	break;
1515
1516	#if 0 /* Appeared more recently, not yet implemented. */
1517	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1518	case SVGA3D_DEVCAP_LINE_AA:
1519	break;
1520	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1521	case SVGA3D_DEVCAP_LINE_STIPPLE:
1522	break;
1523	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1524	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1525	break;
1526	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1527	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1528	break;
1529	#endif
1530
1531	/*
1532	* Supported surface formats.
1533	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1534	*/
1535	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1536	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1537	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1538	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1539	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1540	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1541	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1542	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1543	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1544	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1545	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1546	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1547	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1548	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1549	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1550	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1551	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1552	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1553	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1554	break;
1555
1556	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1557	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1558	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1559	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1560	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1561	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1562	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1563	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1564	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1565	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1566	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1567	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1568	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1569	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1570	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1571	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1572	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1573	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1574	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1575	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1576	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1577	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1578	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1579	break;
1580
1581	/* Linux: Not referenced in current sources. */
1582	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1583	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1584	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1585	rc = VERR_INVALID_PARAMETER;
1586	*pu32Val = 0;
1587	break;
1588
1589	default:
1590	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1591	rc = VERR_INVALID_PARAMETER;
1592	break;
1593	}
1594
1595	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1596	return rc;
1597	}
1598
1599	/**
1600	* Convert SVGA format value to its OpenGL equivalent
1601	*
1602	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1603	* help from wined3dformat_from_d3dformat().
1604	*/
1605	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1606	{
1607	#if 0
1608	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1609	#else
1610	#define AssertTestFmt(f) do {} while(0)
1611	#endif
1612	switch (format)
1613	{
1614	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1615	pSurface->internalFormatGL = GL_RGB8;
1616	pSurface->formatGL = GL_BGRA;
1617	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1618	break;
1619	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1620	pSurface->internalFormatGL = GL_RGBA8;
1621	pSurface->formatGL = GL_BGRA;
1622	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1623	break;
1624	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1625	pSurface->internalFormatGL = GL_RGB5;
1626	pSurface->formatGL = GL_RGB;
1627	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1628	AssertTestFmt(SVGA3D_R5G6B5);
1629	break;
1630	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1631	pSurface->internalFormatGL = GL_RGB5;
1632	pSurface->formatGL = GL_BGRA;
1633	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1634	AssertTestFmt(SVGA3D_X1R5G5B5);
1635	break;
1636	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1637	pSurface->internalFormatGL = GL_RGB5_A1;
1638	pSurface->formatGL = GL_BGRA;
1639	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1640	AssertTestFmt(SVGA3D_A1R5G5B5);
1641	break;
1642	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1643	pSurface->internalFormatGL = GL_RGBA4;
1644	pSurface->formatGL = GL_BGRA;
1645	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1646	AssertTestFmt(SVGA3D_A4R4G4B4);
1647	break;
1648
1649	case SVGA3D_R8G8B8A8_UNORM:
1650	pSurface->internalFormatGL = GL_RGBA8;
1651	pSurface->formatGL = GL_RGBA;
1652	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1653	break;
1654
1655	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1656	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1657	pSurface->formatGL = GL_DEPTH_COMPONENT;
1658	pSurface->typeGL = GL_UNSIGNED_INT;
1659	break;
1660	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1661	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1662	pSurface->formatGL = GL_DEPTH_COMPONENT;
1663	pSurface->typeGL = GL_UNSIGNED_SHORT;
1664	AssertTestFmt(SVGA3D_Z_D16);
1665	break;
1666	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1667	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1668	pSurface->formatGL = GL_DEPTH_STENCIL;
1669	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1670	break;
1671	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1672	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1673	pSurface->formatGL = GL_DEPTH_STENCIL;
1674	pSurface->typeGL = GL_UNSIGNED_SHORT;
1675	/** @todo Wine sources hints at no hw support for this, so test this one! */
1676	AssertTestFmt(SVGA3D_Z_D15S1);
1677	break;
1678	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1679	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1680	pSurface->formatGL = GL_DEPTH_COMPONENT;
1681	pSurface->typeGL = GL_UNSIGNED_INT;
1682	AssertTestFmt(SVGA3D_Z_D24X8);
1683	break;
1684
1685	/* Advanced D3D9 depth formats. */
1686	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1687	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1688	pSurface->formatGL = GL_DEPTH_COMPONENT;
1689	pSurface->typeGL = GL_HALF_FLOAT;
1690	break;
1691
1692	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1693	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1694	pSurface->formatGL = GL_DEPTH_COMPONENT;
1695	pSurface->typeGL = GL_FLOAT; /* ??? */
1696	break;
1697
1698	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1699	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1700	pSurface->formatGL = GL_DEPTH_STENCIL;
1701	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1702	break;
1703
1704	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1705	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1706	pSurface->formatGL = GL_RGBA; /* not used */
1707	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1708	break;
1709
1710	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1711	/* "DXT2 and DXT3 are the same from an API perspective." */
1712	RT_FALL_THRU();
1713	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1714	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1715	pSurface->formatGL = GL_RGBA; /* not used */
1716	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1717	break;
1718
1719	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1720	/* "DXT4 and DXT5 are the same from an API perspective." */
1721	RT_FALL_THRU();
1722	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1723	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1724	pSurface->formatGL = GL_RGBA; /* not used */
1725	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1726	break;
1727
1728	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1729	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1730	pSurface->formatGL = GL_LUMINANCE;
1731	pSurface->typeGL = GL_UNSIGNED_BYTE;
1732	break;
1733
1734	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1735	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1736	pSurface->formatGL = GL_LUMINANCE;
1737	pSurface->typeGL = GL_UNSIGNED_SHORT;
1738	break;
1739
1740	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1741	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1742	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1743	pSurface->typeGL = GL_UNSIGNED_BYTE;
1744	break;
1745
1746	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1747	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1748	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1749	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1750	break;
1751
1752	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1753	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1754	pSurface->formatGL = GL_ALPHA;
1755	pSurface->typeGL = GL_UNSIGNED_BYTE;
1756	break;
1757
1758	#if 0
1759
1760	/* Bump-map formats */
1761	case SVGA3D_BUMPU8V8:
1762	return D3DFMT_V8U8;
1763	case SVGA3D_BUMPL6V5U5:
1764	return D3DFMT_L6V5U5;
1765	case SVGA3D_BUMPX8L8V8U8:
1766	return D3DFMT_X8L8V8U8;
1767	case SVGA3D_BUMPL8V8U8:
1768	/* No corresponding D3D9 equivalent. */
1769	AssertFailedReturn(D3DFMT_UNKNOWN);
1770	/* signed bump-map formats */
1771	case SVGA3D_V8U8:
1772	return D3DFMT_V8U8;
1773	case SVGA3D_Q8W8V8U8:
1774	return D3DFMT_Q8W8V8U8;
1775	case SVGA3D_CxV8U8:
1776	return D3DFMT_CxV8U8;
1777	/* mixed bump-map formats */
1778	case SVGA3D_X8L8V8U8:
1779	return D3DFMT_X8L8V8U8;
1780	case SVGA3D_A2W10V10U10:
1781	return D3DFMT_A2W10V10U10;
1782	#endif
1783
1784	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1785	pSurface->internalFormatGL = GL_RGBA16F;
1786	pSurface->formatGL = GL_RGBA;
1787	#if 0 /* bird: wine uses half float, sounds correct to me... */
1788	pSurface->typeGL = GL_FLOAT;
1789	#else
1790	pSurface->typeGL = GL_HALF_FLOAT;
1791	AssertTestFmt(SVGA3D_ARGB_S10E5);
1792	#endif
1793	break;
1794
1795	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1796	pSurface->internalFormatGL = GL_RGBA32F;
1797	pSurface->formatGL = GL_RGBA;
1798	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1799	break;
1800
1801	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1802	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1803	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1804	pSurface->formatGL = GL_RGBA;
1805	#else
1806	pSurface->formatGL = GL_BGRA;
1807	#endif
1808	pSurface->typeGL = GL_UNSIGNED_INT;
1809	AssertTestFmt(SVGA3D_A2R10G10B10);
1810	break;
1811
1812
1813	/* Single- and dual-component floating point formats */
1814	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1815	pSurface->internalFormatGL = GL_R16F;
1816	pSurface->formatGL = GL_RED;
1817	#if 0 /* bird: wine uses half float, sounds correct to me... */
1818	pSurface->typeGL = GL_FLOAT;
1819	#else
1820	pSurface->typeGL = GL_HALF_FLOAT;
1821	AssertTestFmt(SVGA3D_R_S10E5);
1822	#endif
1823	break;
1824	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1825	pSurface->internalFormatGL = GL_R32F;
1826	pSurface->formatGL = GL_RED;
1827	pSurface->typeGL = GL_FLOAT;
1828	break;
1829	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1830	pSurface->internalFormatGL = GL_RG16F;
1831	pSurface->formatGL = GL_RG;
1832	#if 0 /* bird: wine uses half float, sounds correct to me... */
1833	pSurface->typeGL = GL_FLOAT;
1834	#else
1835	pSurface->typeGL = GL_HALF_FLOAT;
1836	AssertTestFmt(SVGA3D_RG_S10E5);
1837	#endif
1838	break;
1839	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1840	pSurface->internalFormatGL = GL_RG32F;
1841	pSurface->formatGL = GL_RG;
1842	pSurface->typeGL = GL_FLOAT;
1843	break;
1844
1845	/*
1846	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1847	* the most efficient format to use when creating new surfaces
1848	* expressly for index or vertex data.
1849	*/
1850	case SVGA3D_BUFFER:
1851	pSurface->internalFormatGL = -1;
1852	pSurface->formatGL = -1;
1853	pSurface->typeGL = -1;
1854	break;
1855
1856	#if 0
1857	return D3DFMT_UNKNOWN;
1858
1859	case SVGA3D_V16U16:
1860	return D3DFMT_V16U16;
1861	#endif
1862
1863	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1864	pSurface->internalFormatGL = GL_RG16;
1865	pSurface->formatGL = GL_RG;
1866	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1867	pSurface->typeGL = GL_UNSIGNED_INT;
1868	#else
1869	pSurface->typeGL = GL_UNSIGNED_SHORT;
1870	AssertTestFmt(SVGA3D_G16R16);
1871	#endif
1872	break;
1873
1874	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1875	pSurface->internalFormatGL = GL_RGBA16;
1876	pSurface->formatGL = GL_RGBA;
1877	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1878	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1879	#else
1880	pSurface->typeGL = GL_UNSIGNED_SHORT;
1881	AssertTestFmt(SVGA3D_A16B16G16R16);
1882	#endif
1883	break;
1884
1885	case SVGA3D_R8G8B8A8_SNORM:
1886	pSurface->internalFormatGL = GL_RGB8;
1887	pSurface->formatGL = GL_BGRA;
1888	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1889	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1890	break;
1891	case SVGA3D_R16G16_UNORM:
1892	pSurface->internalFormatGL = GL_RG16;
1893	pSurface->formatGL = GL_RG;
1894	pSurface->typeGL = GL_UNSIGNED_SHORT;
1895	AssertTestFmt(SVGA3D_R16G16_UNORM);
1896	break;
1897
1898	#if 0
1899	/* Packed Video formats */
1900	case SVGA3D_UYVY:
1901	return D3DFMT_UYVY;
1902	case SVGA3D_YUY2:
1903	return D3DFMT_YUY2;
1904
1905	/* Planar video formats */
1906	case SVGA3D_NV12:
1907	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1908
1909	/* Video format with alpha */
1910	case SVGA3D_AYUV:
1911	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1912
1913	case SVGA3D_BC4_UNORM:
1914	case SVGA3D_BC5_UNORM:
1915	/* Unknown; only in DX10 & 11 */
1916	break;
1917	#endif
1918	default:
1919	AssertMsgFailed(("Unsupported format %d\n", format));
1920	break;
1921	}
1922	#undef AssertTestFmt
1923	}
1924
1925
1926	#if 0
1927	/**
1928	* Convert SVGA multi sample count value to its D3D equivalent
1929	*/
1930	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1931	{
1932	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1933	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1934
1935	if (multisampleCount > 16)
1936	return D3DMULTISAMPLE_NONE;
1937
1938	/** @todo exact same mapping as d3d? */
1939	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1940	}
1941	#endif
1942
1943	/**
1944	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1945	*
1946	* @param pState The VMSVGA3d state.
1947	* @param pSurface The surface being destroyed.
1948	*/
1949	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1950	{
1951	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1952	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1953
1954	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1955	{
1956	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1957	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1958	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1959	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1960	{
1961	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1962	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1963	}
1964	break;
1965
1966	case SVGA3D_SURFACE_CUBEMAP:
1967	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
1968	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1969	/* Cubemap is a texture. */
1970	case SVGA3D_SURFACE_HINT_TEXTURE:
1971	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1972	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1973	{
1974	glDeleteTextures(1, &pSurface->oglId.texture);
1975	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1976	}
1977	break;
1978
1979	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1980	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1981	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1982	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1983	{
1984	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1985	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1986	}
1987	break;
1988
1989	default:
1990	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1991	break;
1992	}
1993	}
1994
1995
1996	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1997	{
1998	for (uint32_t i = 0; i < cCopyBoxes; i++)
1999	{
2000	SVGA3dBox destBox, srcBox;
2001
2002	srcBox.x = pBox[i].srcx;
2003	srcBox.y = pBox[i].srcy;
2004	srcBox.z = pBox[i].srcz;
2005	srcBox.w = pBox[i].w;
2006	srcBox.h = pBox[i].h;
2007	srcBox.d = pBox[i].d;
2008
2009	destBox.x = pBox[i].x;
2010	destBox.y = pBox[i].y;
2011	destBox.z = pBox[i].z;
2012	destBox.w = pBox[i].w;
2013	destBox.h = pBox[i].h;
2014	destBox.d = pBox[i].d;
2015
2016	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
2017	AssertRCReturn(rc, rc);
2018	}
2019	return VINF_SUCCESS;
2020	}
2021
2022
2023	/**
2024	* Save texture unpacking parameters and loads those appropriate for the given
2025	* surface.
2026	*
2027	* @param pState The VMSVGA3D state structure.
2028	* @param pContext The active context.
2029	* @param pSurface The surface.
2030	* @param pSave Where to save stuff.
2031	*/
2032	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2033	PVMSVGAPACKPARAMS pSave)
2034	{
2035	RT_NOREF(pState);
2036
2037	/*
2038	* Save (ignore errors, setting the defaults we want and avoids restore).
2039	*/
2040	pSave->iAlignment = 1;
2041	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2042	pSave->cxRow = 0;
2043	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2044
2045	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2046	pSave->cyImage = 0;
2047	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2048	Assert(pSave->cyImage == 0);
2049
2050	pSave->fSwapBytes = GL_FALSE;
2051	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2052	Assert(pSave->fSwapBytes == GL_FALSE);
2053
2054	pSave->fLsbFirst = GL_FALSE;
2055	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2056	Assert(pSave->fLsbFirst == GL_FALSE);
2057
2058	pSave->cSkipRows = 0;
2059	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2060	Assert(pSave->cSkipRows == 0);
2061
2062	pSave->cSkipPixels = 0;
2063	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2064	Assert(pSave->cSkipPixels == 0);
2065
2066	pSave->cSkipImages = 0;
2067	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2068	Assert(pSave->cSkipImages == 0);
2069
2070	VMSVGA3D_CLEAR_GL_ERRORS();
2071	#endif
2072
2073	/*
2074	* Setup unpack.
2075	*
2076	* Note! We use 1 as alignment here because we currently don't do any
2077	* aligning of line pitches anywhere.
2078	*/
2079	NOREF(pSurface);
2080	if (pSave->iAlignment != 1)
2081	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2082	if (pSave->cxRow != 0)
2083	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2084	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2085	if (pSave->cyImage != 0)
2086	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2087	if (pSave->fSwapBytes != 0)
2088	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2089	if (pSave->fLsbFirst != 0)
2090	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2091	if (pSave->cSkipRows != 0)
2092	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2093	if (pSave->cSkipPixels != 0)
2094	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2095	if (pSave->cSkipImages != 0)
2096	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2097	#endif
2098	}
2099
2100
2101	/**
2102	* Restores texture unpacking parameters.
2103	*
2104	* @param pState The VMSVGA3D state structure.
2105	* @param pContext The active context.
2106	* @param pSurface The surface.
2107	* @param pSave Where stuff was saved.
2108	*/
2109	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2110	PCVMSVGAPACKPARAMS pSave)
2111	{
2112	RT_NOREF(pState, pSurface);
2113
2114	if (pSave->iAlignment != 1)
2115	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2116	if (pSave->cxRow != 0)
2117	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2118	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2119	if (pSave->cyImage != 0)
2120	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2121	if (pSave->fSwapBytes != 0)
2122	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2123	if (pSave->fLsbFirst != 0)
2124	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2125	if (pSave->cSkipRows != 0)
2126	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2127	if (pSave->cSkipPixels != 0)
2128	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2129	if (pSave->cSkipImages != 0)
2130	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2131	#endif
2132	}
2133
2134	/**
2135	* Create D3D/OpenGL texture object for the specified surface.
2136	*
2137	* Surfaces are created when needed.
2138	*
2139	* @param pState The VMSVGA3d state.
2140	* @param pContext The context.
2141	* @param idAssociatedContext Probably the same as pContext->id.
2142	* @param pSurface The surface to create the texture for.
2143	*/
2144	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2145	PVMSVGA3DSURFACE pSurface)
2146	{
2147	RT_NOREF(idAssociatedContext);
2148
2149	LogFunc(("sid=%x\n", pSurface->id));
2150
2151	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2152
2153	/* Fugure out what kind of texture we are creating. */
2154	GLenum binding;
2155	GLenum target;
2156	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2157	{
2158	Assert(pSurface->cFaces == 6);
2159
2160	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2161	target = GL_TEXTURE_CUBE_MAP;
2162	}
2163	else
2164	{
2165	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2166	{
2167	binding = GL_TEXTURE_BINDING_3D;
2168	target = GL_TEXTURE_3D;
2169	}
2170	else
2171	{
2172	Assert(pSurface->cFaces == 1);
2173
2174	binding = GL_TEXTURE_BINDING_2D;
2175	target = GL_TEXTURE_2D;
2176	}
2177	}
2178
2179	/* All textures are created in the SharedCtx. */
2180	uint32_t idPrevCtx = pState->idActiveContext;
2181	pContext = &pState->SharedCtx;
2182	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2183
2184	glGenTextures(1, &pSurface->oglId.texture);
2185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2186
2187	GLint activeTexture = 0;
2188	glGetIntegerv(binding, &activeTexture);
2189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2190
2191	/* Must bind texture to the current context in order to change it. */
2192	glBindTexture(target, pSurface->oglId.texture);
2193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2194
2195	/* Set the unpacking parameters. */
2196	VMSVGAPACKPARAMS SavedParams;
2197	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2198
2199	/** @todo Set the mip map generation filter settings. */
2200
2201	/* Set the mipmap base and max level parameters. */
2202	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2203	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2204	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2205	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2206
2207	if (pSurface->fDirty)
2208	LogFunc(("sync dirty texture\n"));
2209
2210	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2211	if (target == GL_TEXTURE_3D)
2212	{
2213	for (uint32_t i = 0; i < numMipLevels; ++i)
2214	{
2215	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2216	* exposing random host memory to the guest and helps a with the fedora 21 surface
2217	* corruption issues (launchpad, background, search field, login).
2218	*/
2219	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2220
2221	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2222	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2223
2224	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2225	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2226	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2227	{
2228	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2229	i,
2230	pSurface->internalFormatGL,
2231	pMipLevel->mipmapSize.width,
2232	pMipLevel->mipmapSize.height,
2233	pMipLevel->mipmapSize.depth,
2234	0,
2235	pMipLevel->cbSurface,
2236	pMipLevel->pSurfaceData);
2237	}
2238	else
2239	{
2240	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2241	i,
2242	pSurface->internalFormatGL,
2243	pMipLevel->mipmapSize.width,
2244	pMipLevel->mipmapSize.height,
2245	pMipLevel->mipmapSize.depth,
2246	0, /* border */
2247	pSurface->formatGL,
2248	pSurface->typeGL,
2249	pMipLevel->pSurfaceData);
2250	}
2251	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2252
2253	pMipLevel->fDirty = false;
2254	}
2255	}
2256	else if (target == GL_TEXTURE_CUBE_MAP)
2257	{
2258	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2259	{
2260	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2261
2262	for (uint32_t i = 0; i < numMipLevels; ++i)
2263	{
2264	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2265	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2266	Assert(pMipLevel->mipmapSize.depth == 1);
2267
2268	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2269	iFace, i, pMipLevel->fDirty));
2270
2271	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2272	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2273	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2274	{
2275	pState->ext.glCompressedTexImage2D(Face,
2276	i,
2277	pSurface->internalFormatGL,
2278	pMipLevel->mipmapSize.width,
2279	pMipLevel->mipmapSize.height,
2280	0,
2281	pMipLevel->cbSurface,
2282	pMipLevel->pSurfaceData);
2283	}
2284	else
2285	{
2286	glTexImage2D(Face,
2287	i,
2288	pSurface->internalFormatGL,
2289	pMipLevel->mipmapSize.width,
2290	pMipLevel->mipmapSize.height,
2291	0,
2292	pSurface->formatGL,
2293	pSurface->typeGL,
2294	pMipLevel->pSurfaceData);
2295	}
2296	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2297
2298	pMipLevel->fDirty = false;
2299	}
2300	}
2301	}
2302	else if (target == GL_TEXTURE_2D)
2303	{
2304	for (uint32_t i = 0; i < numMipLevels; ++i)
2305	{
2306	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2307	* exposing random host memory to the guest and helps a with the fedora 21 surface
2308	* corruption issues (launchpad, background, search field, login).
2309	*/
2310	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2311	Assert(pMipLevel->mipmapSize.depth == 1);
2312
2313	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2314	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2315
2316	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2317	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2318	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2319	{
2320	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2321	i,
2322	pSurface->internalFormatGL,
2323	pMipLevel->mipmapSize.width,
2324	pMipLevel->mipmapSize.height,
2325	0,
2326	pMipLevel->cbSurface,
2327	pMipLevel->pSurfaceData);
2328	}
2329	else
2330	{
2331	glTexImage2D(GL_TEXTURE_2D,
2332	i,
2333	pSurface->internalFormatGL,
2334	pMipLevel->mipmapSize.width,
2335	pMipLevel->mipmapSize.height,
2336	0,
2337	pSurface->formatGL,
2338	pSurface->typeGL,
2339	pMipLevel->pSurfaceData);
2340	}
2341	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2342
2343	pMipLevel->fDirty = false;
2344	}
2345	}
2346
2347	pSurface->fDirty = false;
2348
2349	/* Restore unpacking parameters. */
2350	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2351
2352	/* Restore the old active texture. */
2353	glBindTexture(target, activeTexture);
2354	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2355
2356	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2357	pSurface->targetGL = target;
2358	pSurface->bindingGL = binding;
2359
2360	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2361	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2362	return VINF_SUCCESS;
2363	}
2364
2365
2366	/**
2367	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2368	*
2369	* @returns VBox status code.
2370	* @param pThis The VGA device instance.
2371	* @param pState The VMSVGA3d state.
2372	* @param pDstSurface The destination host surface.
2373	* @param uDstFace The destination face (valid).
2374	* @param uDstMipmap The destination mipmap level (valid).
2375	* @param pDstBox The destination box.
2376	* @param pSrcSurface The source host surface.
2377	* @param uSrcFace The destination face (valid).
2378	* @param uSrcMipmap The source mimap level (valid).
2379	* @param pSrcBox The source box.
2380	* @param enmMode The strecht blt mode .
2381	* @param pContext The VMSVGA3d context (already current for OGL).
2382	*/
2383	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2384	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2385	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2386	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2387	{
2388	RT_NOREF(pThis);
2389
2390	/* Activate the read and draw framebuffer objects. */
2391	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2392	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2393	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2394	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2395
2396	/* Bind the source and destination objects to the right place. */
2397	GLenum textarget;
2398	if (pSrcSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2399	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2400	else
2401	textarget = GL_TEXTURE_2D;
2402	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2403	pSrcSurface->oglId.texture, uSrcMipmap);
2404	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2405
2406	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2407	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2408	else
2409	textarget = GL_TEXTURE_2D;
2410	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2411	pDstSurface->oglId.texture, uDstMipmap);
2412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2413
2414	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2415	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2416	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2417	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2418	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2419
2420	pState->ext.glBlitFramebuffer(pSrcBox->x,
2421	pSrcBox->y,
2422	pSrcBox->x + pSrcBox->w, /* exclusive. */
2423	pSrcBox->y + pSrcBox->h,
2424	pDstBox->x,
2425	pDstBox->y,
2426	pDstBox->x + pDstBox->w, /* exclusive. */
2427	pDstBox->y + pDstBox->h,
2428	GL_COLOR_BUFFER_BIT,
2429	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2431
2432	/* Reset the frame buffer association */
2433	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2435
2436	return VINF_SUCCESS;
2437	}
2438
2439	/**
2440	* Save texture packing parameters and loads those appropriate for the given
2441	* surface.
2442	*
2443	* @param pState The VMSVGA3D state structure.
2444	* @param pContext The active context.
2445	* @param pSurface The surface.
2446	* @param pSave Where to save stuff.
2447	*/
2448	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2449	PVMSVGAPACKPARAMS pSave)
2450	{
2451	RT_NOREF(pState);
2452	/*
2453	* Save (ignore errors, setting the defaults we want and avoids restore).
2454	*/
2455	pSave->iAlignment = 1;
2456	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2457	pSave->cxRow = 0;
2458	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2459
2460	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2461	pSave->cyImage = 0;
2462	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2463	Assert(pSave->cyImage == 0);
2464
2465	pSave->fSwapBytes = GL_FALSE;
2466	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2467	Assert(pSave->fSwapBytes == GL_FALSE);
2468
2469	pSave->fLsbFirst = GL_FALSE;
2470	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2471	Assert(pSave->fLsbFirst == GL_FALSE);
2472
2473	pSave->cSkipRows = 0;
2474	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2475	Assert(pSave->cSkipRows == 0);
2476
2477	pSave->cSkipPixels = 0;
2478	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2479	Assert(pSave->cSkipPixels == 0);
2480
2481	pSave->cSkipImages = 0;
2482	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2483	Assert(pSave->cSkipImages == 0);
2484
2485	VMSVGA3D_CLEAR_GL_ERRORS();
2486	#endif
2487
2488	/*
2489	* Setup unpack.
2490	*
2491	* Note! We use 1 as alignment here because we currently don't do any
2492	* aligning of line pitches anywhere.
2493	*/
2494	NOREF(pSurface);
2495	if (pSave->iAlignment != 1)
2496	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2497	if (pSave->cxRow != 0)
2498	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2499	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2500	if (pSave->cyImage != 0)
2501	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2502	if (pSave->fSwapBytes != 0)
2503	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2504	if (pSave->fLsbFirst != 0)
2505	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2506	if (pSave->cSkipRows != 0)
2507	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2508	if (pSave->cSkipPixels != 0)
2509	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2510	if (pSave->cSkipImages != 0)
2511	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2512	#endif
2513	}
2514
2515
2516	/**
2517	* Restores texture packing parameters.
2518	*
2519	* @param pState The VMSVGA3D state structure.
2520	* @param pContext The active context.
2521	* @param pSurface The surface.
2522	* @param pSave Where stuff was saved.
2523	*/
2524	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2525	PCVMSVGAPACKPARAMS pSave)
2526	{
2527	RT_NOREF(pState, pSurface);
2528	if (pSave->iAlignment != 1)
2529	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2530	if (pSave->cxRow != 0)
2531	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2532	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2533	if (pSave->cyImage != 0)
2534	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2535	if (pSave->fSwapBytes != 0)
2536	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2537	if (pSave->fLsbFirst != 0)
2538	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2539	if (pSave->cSkipRows != 0)
2540	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2541	if (pSave->cSkipPixels != 0)
2542	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2543	if (pSave->cSkipImages != 0)
2544	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2545	#endif
2546	}
2547
2548
2549	/**
2550	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2551	*
2552	* @returns Failure status code or @a rc.
2553	* @param pThis The VGA device instance data.
2554	* @param pState The VMSVGA3d state.
2555	* @param pSurface The host surface.
2556	* @param pMipLevel Mipmap level. The caller knows it already.
2557	* @param uHostFace The host face (valid).
2558	* @param uHostMipmap The host mipmap level (valid).
2559	* @param GuestPtr The guest pointer.
2560	* @param cbGuestPitch The guest pitch.
2561	* @param transfer The transfer direction.
2562	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2563	* @param pContext The context (for OpenGL).
2564	* @param rc The current rc for all boxes.
2565	* @param iBox The current box number (for Direct 3D).
2566	*/
2567	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2568	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2569	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2570	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2571	{
2572	RT_NOREF(iBox);
2573
2574	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2575	{
2576	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2577	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2578	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2579	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2580	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2581	case SVGA3D_SURFACE_HINT_TEXTURE:
2582	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2583	{
2584	uint32_t cbSurfacePitch;
2585	uint8_t *pDoubleBuffer;
2586	uint32_t offHst;
2587
2588	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2589	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2590	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2591	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2592
2593	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2594	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2595	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2596	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2597
2598	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2599	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2600	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2601
2602	GLenum texImageTarget;
2603	if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2604	{
2605	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2606	}
2607	else
2608	{
2609	Assert(pSurface->targetGL == GL_TEXTURE_2D);
2610	texImageTarget = GL_TEXTURE_2D;
2611	}
2612
2613	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2614	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2615
2616	if (transfer == SVGA3D_READ_HOST_VRAM)
2617	{
2618	GLint activeTexture;
2619
2620	/* Must bind texture to the current context in order to read it. */
2621	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2622	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2623
2624	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2625	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2626
2627	/* Set row length and alignment of the input data. */
2628	VMSVGAPACKPARAMS SavedParams;
2629	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2630
2631	glGetTexImage(texImageTarget,
2632	uHostMipmap,
2633	pSurface->formatGL,
2634	pSurface->typeGL,
2635	pDoubleBuffer);
2636	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2637
2638	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2639
2640	/* Restore the old active texture. */
2641	glBindTexture(pSurface->targetGL, activeTexture);
2642	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2643
2644	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2645	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2646	}
2647	else
2648	{
2649	/* The buffer will contain only the copied rectangle. */
2650	offHst = 0;
2651	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2652	}
2653
2654	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2655
2656	rc = vmsvgaGMRTransfer(pThis,
2657	transfer,
2658	pDoubleBuffer,
2659	pMipLevel->cbSurface,
2660	offHst,
2661	cbSurfacePitch,
2662	GuestPtr,
2663	offGst,
2664	cbGuestPitch,
2665	cBlocksX * pSurface->cbBlock,
2666	cBlocksY);
2667	AssertRC(rc);
2668
2669	/* Update the opengl surface data. */
2670	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2671	{
2672	GLint activeTexture = 0;
2673	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2674	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2675
2676	/* Must bind texture to the current context in order to change it. */
2677	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2678	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2679
2680	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2681
2682	/* Set row length and alignment of the input data. */
2683	VMSVGAPACKPARAMS SavedParams;
2684	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2685
2686	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2687	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2688	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2689	{
2690	pState->ext.glCompressedTexSubImage2D(texImageTarget,
2691	uHostMipmap,
2692	pBox->x,
2693	pBox->y,
2694	pBox->w,
2695	pBox->h,
2696	pSurface->internalFormatGL,
2697	cbSurfacePitch * cBlocksY,
2698	pDoubleBuffer);
2699	}
2700	else
2701	{
2702	glTexSubImage2D(texImageTarget,
2703	uHostMipmap,
2704	u32HostBlockX,
2705	u32HostBlockY,
2706	cBlocksX,
2707	cBlocksY,
2708	pSurface->formatGL,
2709	pSurface->typeGL,
2710	pDoubleBuffer);
2711	}
2712	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2713
2714	/* Restore old values. */
2715	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2716
2717	/* Restore the old active texture. */
2718	glBindTexture(pSurface->targetGL, activeTexture);
2719	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2720	}
2721
2722	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2723
2724	/* Free the double buffer. */
2725	RTMemFree(pDoubleBuffer);
2726	break;
2727	}
2728
2729	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2730	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2731	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2732	{
2733	/* Buffers are uncompressed. */
2734	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2735
2736	/* Caller already clipped pBox and buffers are 1-dimensional. */
2737	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2738
2739	VMSVGA3D_CLEAR_GL_ERRORS();
2740	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2741	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2742	{
2743	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2744	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2745	if (RT_LIKELY(pbData != NULL))
2746	{
2747	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2748	GLint cbStrictBufSize;
2749	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2750	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2751	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2752	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2753	#endif
2754	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2755	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2756	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2757	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2758
2759	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2760
2761	rc = vmsvgaGMRTransfer(pThis,
2762	transfer,
2763	pbData,
2764	pMipLevel->cbSurface,
2765	offHst,
2766	pMipLevel->cbSurfacePitch,
2767	GuestPtr,
2768	pBox->srcx * pSurface->cbBlock,
2769	cbGuestPitch,
2770	pBox->w * pSurface->cbBlock,
2771	pBox->h);
2772	AssertRC(rc);
2773
2774	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2775
2776	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2777	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2778	}
2779	else
2780	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2781	}
2782	else
2783	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2784	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2785	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2786	break;
2787	}
2788
2789	default:
2790	AssertFailed();
2791	break;
2792	}
2793
2794	return rc;
2795	}
2796
2797	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2798	{
2799	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2800	PVMSVGA3DSURFACE pSurface;
2801	int rc = VINF_SUCCESS;
2802	PVMSVGA3DCONTEXT pContext;
2803	uint32_t cid;
2804	GLint activeTexture = 0;
2805
2806	AssertReturn(pState, VERR_NO_MEMORY);
2807
2808	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2809	AssertRCReturn(rc, rc);
2810
2811	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2812	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2813	pSurface->autogenFilter = filter;
2814
2815	LogFunc(("sid=%x filter=%d\n", sid, filter));
2816
2817	cid = SVGA3D_INVALID_ID;
2818	pContext = &pState->SharedCtx;
2819	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2820
2821	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2822	{
2823	/* Unknown surface type; turn it into a texture. */
2824	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2825	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2826	AssertRCReturn(rc, rc);
2827	}
2828	else
2829	{
2830	/** @todo new filter */
2831	AssertFailed();
2832	}
2833
2834	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2835	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2836
2837	/* Must bind texture to the current context in order to change it. */
2838	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2839	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2840
2841	/* Generate the mip maps. */
2842	pState->ext.glGenerateMipmap(pSurface->targetGL);
2843	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2844
2845	/* Restore the old texture. */
2846	glBindTexture(pSurface->targetGL, activeTexture);
2847	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2848
2849	return VINF_SUCCESS;
2850	}
2851
2852
2853	#ifdef RT_OS_LINUX
2854	/**
2855	* X11 event handling thread.
2856	*
2857	* @returns VINF_SUCCESS (ignored)
2858	* @param hThreadSelf thread handle
2859	* @param pvUser pointer to pState structure
2860	*/
2861	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
2862	{
2863	RT_NOREF(hThreadSelf);
2864	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
2865	while (!pState->bTerminate)
2866	{
2867	while (XPending(pState->display) > 0)
2868	{
2869	XEvent event;
2870	XNextEvent(pState->display, &event);
2871
2872	switch (event.type)
2873	{
2874	default:
2875	break;
2876	}
2877	}
2878	/* sleep for 16ms to not burn too many cycles */
2879	RTThreadSleep(16);
2880	}
2881	return VINF_SUCCESS;
2882	}
2883	#endif // RT_OS_LINUX
2884
2885
2886	/**
2887	* Create a new 3d context
2888	*
2889	* @returns VBox status code.
2890	* @param pThis VGA device instance data.
2891	* @param cid Context id
2892	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
2893	*/
2894	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
2895	{
2896	int rc;
2897	PVMSVGA3DCONTEXT pContext;
2898	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2899
2900	AssertReturn(pState, VERR_NO_MEMORY);
2901	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
2902	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
2903	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
2904	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
2905	#endif
2906
2907	Log(("vmsvga3dContextDefine id %x\n", cid));
2908
2909	if (cid == VMSVGA3D_SHARED_CTX_ID)
2910	pContext = &pState->SharedCtx;
2911	else
2912	{
2913	if (cid >= pState->cContexts)
2914	{
2915	/* Grow the array. */
2916	uint32_t cNew = RT_ALIGN(cid + 15, 16);
2917	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
2918	AssertReturn(pvNew, VERR_NO_MEMORY);
2919	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
2920	while (pState->cContexts < cNew)
2921	{
2922	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
2923	AssertReturn(pContext, VERR_NO_MEMORY);
2924	pContext->id = SVGA3D_INVALID_ID;
2925	pState->papContexts[pState->cContexts++] = pContext;
2926	}
2927	}
2928	/* If one already exists with this id, then destroy it now. */
2929	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
2930	vmsvga3dContextDestroy(pThis, cid);
2931
2932	pContext = pState->papContexts[cid];
2933	}
2934
2935	/*
2936	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
2937	*/
2938	PVMSVGA3DCONTEXT pSharedCtx = NULL;
2939	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
2940	{
2941	pSharedCtx = &pState->SharedCtx;
2942	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
2943	{
2944	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
2945	AssertLogRelRCReturn(rc, rc);
2946	}
2947	}
2948
2949	/*
2950	* Initialize the context.
2951	*/
2952	memset(pContext, 0, sizeof(*pContext));
2953	pContext->id = cid;
2954	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
2955	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
2956
2957	pContext->state.shidVertex = SVGA3D_INVALID_ID;
2958	pContext->state.shidPixel = SVGA3D_INVALID_ID;
2959	pContext->idFramebuffer = OPENGL_INVALID_ID;
2960	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
2961	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
2962
2963	rc = ShaderContextCreate(&pContext->pShaderContext);
2964	AssertRCReturn(rc, rc);
2965
2966	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
2967	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
2968
2969	#ifdef RT_OS_WINDOWS
2970	/* Create a context window with minimal 4x4 size. We will never use the swapchain
2971	* to present the rendered image. Rendered images from the guest will be copied to
2972	* the VMSVGA SCREEN object, which can be either an offscreen render target or
2973	* system memory in the guest VRAM.
2974	*/
2975	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
2976	AssertRCReturn(rc, rc);
2977
2978	pContext->hdc = GetDC(pContext->hwnd);
2979	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
2980
2981	PIXELFORMATDESCRIPTOR pfd = {
2982	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
2983	1, /* version number */
2984	PFD_DRAW_TO_WINDOW \| /* support window */
2985	PFD_SUPPORT_OPENGL, /* support OpenGL */
2986	PFD_TYPE_RGBA, /* RGBA type */
2987	24, /* 24-bit color depth */
2988	0, 0, 0, 0, 0, 0, /* color bits ignored */
2989	8, /* alpha buffer */
2990	0, /* shift bit ignored */
2991	0, /* no accumulation buffer */
2992	0, 0, 0, 0, /* accum bits ignored */
2993	16, /* set depth buffer */
2994	16, /* set stencil buffer */
2995	0, /* no auxiliary buffer */
2996	PFD_MAIN_PLANE, /* main layer */
2997	0, /* reserved */
2998	0, 0, 0 /* layer masks ignored */
2999	};
3000	int pixelFormat;
3001	BOOL ret;
3002
3003	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3004	/** @todo is this really necessary?? */
3005	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3006	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3007
3008	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3009	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3010
3011	pContext->hglrc = wglCreateContext(pContext->hdc);
3012	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3013
3014	if (pSharedCtx)
3015	{
3016	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3017	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3018	}
3019
3020	#elif defined(RT_OS_DARWIN)
3021	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3022
3023	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3024	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3025	NULL,
3026	4, 4,
3027	pShareContext, pContext->fOtherProfile);
3028
3029	#else
3030	if (pState->display == NULL)
3031	{
3032	/* get an X display and make sure we have glX 1.3 */
3033	pState->display = XOpenDisplay(0);
3034	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3035	int glxMajor, glxMinor;
3036	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3037	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3038	/* start our X event handling thread */
3039	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3040	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3041	}
3042
3043	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3044	/* Create a small 4x4 window required for GL context. */
3045	int attrib[] =
3046	{
3047	GLX_RGBA,
3048	GLX_RED_SIZE, 1,
3049	GLX_GREEN_SIZE, 1,
3050	GLX_BLUE_SIZE, 1,
3051	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3052	GLX_DOUBLEBUFFER,
3053	None
3054	};
3055	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3056	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3057	XSetWindowAttributes swa;
3058	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3059	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3060	swa.border_pixel = 0;
3061	swa.background_pixel = 0;
3062	swa.event_mask = StructureNotifyMask;
3063	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3064	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3065	0, 0, 4, 4,
3066	0, vi->depth, InputOutput,
3067	vi->visual, flags, &swa);
3068	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3069
3070	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3071
3072	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3073	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3074	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3075	#endif
3076
3077	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3078
3079	/* NULL during the first PowerOn call. */
3080	if (pState->ext.glGenFramebuffers)
3081	{
3082	/* Create a framebuffer object for this context. */
3083	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3085
3086	/* Bind the object to the framebuffer target. */
3087	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3088	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3089
3090	/* Create read and draw framebuffer objects for this context. */
3091	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3092	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3093
3094	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3095	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3096
3097	}
3098	#if 0
3099	/** @todo move to shader lib!!! */
3100	/* Clear the screen */
3101	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3102
3103	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3104	glClearIndex(0);
3105	glClearDepth(1);
3106	glClearStencil(0xffff);
3107	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3108	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3109	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3110	if (pState->ext.glProvokingVertex)
3111	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3112	/** @todo move to shader lib!!! */
3113	#endif
3114	return VINF_SUCCESS;
3115	}
3116
3117
3118	/**
3119	* Create a new 3d context
3120	*
3121	* @returns VBox status code.
3122	* @param pThis VGA device instance data.
3123	* @param cid Context id
3124	*/
3125	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3126	{
3127	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3128	}
3129
3130	/**
3131	* Destroys a 3d context.
3132	*
3133	* @returns VBox status code.
3134	* @param pThis VGA device instance data.
3135	* @param pContext The context to destroy.
3136	* @param cid Context id
3137	*/
3138	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3139	{
3140	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3141	AssertReturn(pState, VERR_NO_MEMORY);
3142	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3143	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3144	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3145
3146	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3147
3148	/* Destroy all leftover pixel shaders. */
3149	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3150	{
3151	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3152	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3153	}
3154	if (pContext->paPixelShader)
3155	RTMemFree(pContext->paPixelShader);
3156
3157	/* Destroy all leftover vertex shaders. */
3158	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3159	{
3160	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3161	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3162	}
3163	if (pContext->paVertexShader)
3164	RTMemFree(pContext->paVertexShader);
3165
3166	if (pContext->state.paVertexShaderConst)
3167	RTMemFree(pContext->state.paVertexShaderConst);
3168	if (pContext->state.paPixelShaderConst)
3169	RTMemFree(pContext->state.paPixelShaderConst);
3170
3171	if (pContext->pShaderContext)
3172	{
3173	int rc = ShaderContextDestroy(pContext->pShaderContext);
3174	AssertRC(rc);
3175	}
3176
3177	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3178	{
3179	/* Unbind the object from the framebuffer target. */
3180	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3181	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3182	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3184
3185	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3186	{
3187	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3189	}
3190	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3191	{
3192	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3194	}
3195	}
3196
3197	vmsvga3dOcclusionQueryDelete(pState, pContext);
3198
3199	#ifdef RT_OS_WINDOWS
3200	wglMakeCurrent(pContext->hdc, NULL);
3201	wglDeleteContext(pContext->hglrc);
3202	ReleaseDC(pContext->hwnd, pContext->hdc);
3203
3204	/* Destroy the window we've created. */
3205	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3206	AssertRC(rc);
3207	#elif defined(RT_OS_DARWIN)
3208	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3209	#elif defined(RT_OS_LINUX)
3210	glXMakeCurrent(pState->display, None, NULL);
3211	glXDestroyContext(pState->display, pContext->glxContext);
3212	XDestroyWindow(pState->display, pContext->window);
3213	#endif
3214
3215	memset(pContext, 0, sizeof(*pContext));
3216	pContext->id = SVGA3D_INVALID_ID;
3217
3218	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3219	return VINF_SUCCESS;
3220	}
3221
3222	/**
3223	* Destroy an existing 3d context
3224	*
3225	* @returns VBox status code.
3226	* @param pThis VGA device instance data.
3227	* @param cid Context id
3228	*/
3229	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3230	{
3231	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3232	AssertReturn(pState, VERR_WRONG_ORDER);
3233
3234	/*
3235	* Resolve the context and hand it to the common worker function.
3236	*/
3237	if ( cid < pState->cContexts
3238	&& pState->papContexts[cid]->id == cid)
3239	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3240
3241	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3242	return VINF_SUCCESS;
3243	}
3244
3245	/**
3246	* Worker for vmsvga3dChangeMode that resizes a context.
3247	*
3248	* @param pThis The VGA device instance data.
3249	* @param pState The VMSVGA3d state.
3250	* @param pContext The context.
3251	*/
3252	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3253	{
3254	RT_NOREF3(pThis, pState, pContext);
3255	/* Do nothing. The window is not used for presenting. */
3256	}
3257
3258	/* Handle resize */
3259	int vmsvga3dChangeMode(PVGASTATE pThis)
3260	{
3261	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3262	AssertReturn(pState, VERR_NO_MEMORY);
3263
3264	/* Resize the shared context too. */
3265	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3266	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3267
3268	/* Resize all active contexts. */
3269	for (uint32_t i = 0; i < pState->cContexts; i++)
3270	{
3271	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3272	if (pContext->id != SVGA3D_INVALID_ID)
3273	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3274	}
3275
3276	return VINF_SUCCESS;
3277	}
3278
3279
3280	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3281	{
3282	PVMSVGA3DCONTEXT pContext;
3283	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3284	AssertReturn(pState, VERR_NO_MEMORY);
3285	bool fModelViewChanged = false;
3286
3287	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3288
3289	if ( cid >= pState->cContexts
3290	\|\| pState->papContexts[cid]->id != cid)
3291	{
3292	Log(("vmsvga3dSetTransform invalid context id!\n"));
3293	return VERR_INVALID_PARAMETER;
3294	}
3295	pContext = pState->papContexts[cid];
3296	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3297
3298	/* Save this matrix for vm state save/restore. */
3299	pContext->state.aTransformState[type].fValid = true;
3300	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3301	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3302
3303	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)));
3304	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)));
3305	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)));
3306	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)));
3307
3308	switch (type)
3309	{
3310	case SVGA3D_TRANSFORM_VIEW:
3311	/* View * World = Model View */
3312	glMatrixMode(GL_MODELVIEW);
3313	glLoadMatrixf(matrix);
3314	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3315	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3316	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3317	fModelViewChanged = true;
3318	break;
3319
3320	case SVGA3D_TRANSFORM_PROJECTION:
3321	{
3322	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3323	AssertRCReturn(rc, rc);
3324	break;
3325	}
3326
3327	case SVGA3D_TRANSFORM_TEXTURE0:
3328	glMatrixMode(GL_TEXTURE);
3329	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3330	glLoadMatrixf(matrix);
3331	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3332	break;
3333
3334	case SVGA3D_TRANSFORM_TEXTURE1:
3335	case SVGA3D_TRANSFORM_TEXTURE2:
3336	case SVGA3D_TRANSFORM_TEXTURE3:
3337	case SVGA3D_TRANSFORM_TEXTURE4:
3338	case SVGA3D_TRANSFORM_TEXTURE5:
3339	case SVGA3D_TRANSFORM_TEXTURE6:
3340	case SVGA3D_TRANSFORM_TEXTURE7:
3341	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3342	return VERR_INVALID_PARAMETER;
3343
3344	case SVGA3D_TRANSFORM_WORLD:
3345	/* View * World = Model View */
3346	glMatrixMode(GL_MODELVIEW);
3347	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3348	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3349	else
3350	glLoadIdentity();
3351	glMultMatrixf(matrix);
3352	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3353	fModelViewChanged = true;
3354	break;
3355
3356	case SVGA3D_TRANSFORM_WORLD1:
3357	case SVGA3D_TRANSFORM_WORLD2:
3358	case SVGA3D_TRANSFORM_WORLD3:
3359	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3360	return VERR_INVALID_PARAMETER;
3361
3362	default:
3363	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3364	return VERR_INVALID_PARAMETER;
3365	}
3366
3367	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3368	if (fModelViewChanged)
3369	{
3370	/* Reprogram the clip planes. */
3371	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3372	{
3373	if (pContext->state.aClipPlane[j].fValid == true)
3374	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3375	}
3376
3377	/* Reprogram the light data. */
3378	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3379	{
3380	if (pContext->state.aLightData[j].fValidData == true)
3381	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3382	}
3383	}
3384
3385	return VINF_SUCCESS;
3386	}
3387
3388	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3389	{
3390	PVMSVGA3DCONTEXT pContext;
3391	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3392	AssertReturn(pState, VERR_NO_MEMORY);
3393
3394	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3395
3396	if ( cid >= pState->cContexts
3397	\|\| pState->papContexts[cid]->id != cid)
3398	{
3399	Log(("vmsvga3dSetZRange invalid context id!\n"));
3400	return VERR_INVALID_PARAMETER;
3401	}
3402	pContext = pState->papContexts[cid];
3403	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3404
3405	pContext->state.zRange = zRange;
3406	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3407
3408	if (zRange.min < -1.0)
3409	zRange.min = -1.0;
3410	if (zRange.max > 1.0)
3411	zRange.max = 1.0;
3412
3413	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3414	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3415	return VINF_SUCCESS;
3416	}
3417
3418	/**
3419	* Convert SVGA blend op value to its OpenGL equivalent
3420	*/
3421	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3422	{
3423	switch (blendOp)
3424	{
3425	case SVGA3D_BLENDOP_ZERO:
3426	return GL_ZERO;
3427	case SVGA3D_BLENDOP_ONE:
3428	return GL_ONE;
3429	case SVGA3D_BLENDOP_SRCCOLOR:
3430	return GL_SRC_COLOR;
3431	case SVGA3D_BLENDOP_INVSRCCOLOR:
3432	return GL_ONE_MINUS_SRC_COLOR;
3433	case SVGA3D_BLENDOP_SRCALPHA:
3434	return GL_SRC_ALPHA;
3435	case SVGA3D_BLENDOP_INVSRCALPHA:
3436	return GL_ONE_MINUS_SRC_ALPHA;
3437	case SVGA3D_BLENDOP_DESTALPHA:
3438	return GL_DST_ALPHA;
3439	case SVGA3D_BLENDOP_INVDESTALPHA:
3440	return GL_ONE_MINUS_DST_ALPHA;
3441	case SVGA3D_BLENDOP_DESTCOLOR:
3442	return GL_DST_COLOR;
3443	case SVGA3D_BLENDOP_INVDESTCOLOR:
3444	return GL_ONE_MINUS_DST_COLOR;
3445	case SVGA3D_BLENDOP_SRCALPHASAT:
3446	return GL_SRC_ALPHA_SATURATE;
3447	case SVGA3D_BLENDOP_BLENDFACTOR:
3448	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3449	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3450	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3451	default:
3452	AssertFailed();
3453	return GL_ONE;
3454	}
3455	}
3456
3457	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3458	{
3459	switch (blendEq)
3460	{
3461	case SVGA3D_BLENDEQ_ADD:
3462	return GL_FUNC_ADD;
3463	case SVGA3D_BLENDEQ_SUBTRACT:
3464	return GL_FUNC_SUBTRACT;
3465	case SVGA3D_BLENDEQ_REVSUBTRACT:
3466	return GL_FUNC_REVERSE_SUBTRACT;
3467	case SVGA3D_BLENDEQ_MINIMUM:
3468	return GL_MIN;
3469	case SVGA3D_BLENDEQ_MAXIMUM:
3470	return GL_MAX;
3471	default:
3472	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3473	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3474	return GL_FUNC_ADD;
3475	}
3476	}
3477
3478	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3479	{
3480	switch (cmpFunc)
3481	{
3482	case SVGA3D_CMP_NEVER:
3483	return GL_NEVER;
3484	case SVGA3D_CMP_LESS:
3485	return GL_LESS;
3486	case SVGA3D_CMP_EQUAL:
3487	return GL_EQUAL;
3488	case SVGA3D_CMP_LESSEQUAL:
3489	return GL_LEQUAL;
3490	case SVGA3D_CMP_GREATER:
3491	return GL_GREATER;
3492	case SVGA3D_CMP_NOTEQUAL:
3493	return GL_NOTEQUAL;
3494	case SVGA3D_CMP_GREATEREQUAL:
3495	return GL_GEQUAL;
3496	case SVGA3D_CMP_ALWAYS:
3497	return GL_ALWAYS;
3498	default:
3499	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3500	return GL_LESS;
3501	}
3502	}
3503
3504	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3505	{
3506	switch (stencilOp)
3507	{
3508	case SVGA3D_STENCILOP_KEEP:
3509	return GL_KEEP;
3510	case SVGA3D_STENCILOP_ZERO:
3511	return GL_ZERO;
3512	case SVGA3D_STENCILOP_REPLACE:
3513	return GL_REPLACE;
3514	case SVGA3D_STENCILOP_INCRSAT:
3515	return GL_INCR_WRAP;
3516	case SVGA3D_STENCILOP_DECRSAT:
3517	return GL_DECR_WRAP;
3518	case SVGA3D_STENCILOP_INVERT:
3519	return GL_INVERT;
3520	case SVGA3D_STENCILOP_INCR:
3521	return GL_INCR;
3522	case SVGA3D_STENCILOP_DECR:
3523	return GL_DECR;
3524	default:
3525	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3526	return GL_KEEP;
3527	}
3528	}
3529
3530	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3531	{
3532	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3533	PVMSVGA3DCONTEXT pContext;
3534	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3535	AssertReturn(pState, VERR_NO_MEMORY);
3536
3537	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3538
3539	if ( cid >= pState->cContexts
3540	\|\| pState->papContexts[cid]->id != cid)
3541	{
3542	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3543	return VERR_INVALID_PARAMETER;
3544	}
3545	pContext = pState->papContexts[cid];
3546	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3547
3548	for (unsigned i = 0; i < cRenderStates; i++)
3549	{
3550	GLenum enableCap = ~(GLenum)0;
3551	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3552	/* Save the render state for vm state saving. */
3553	if (pRenderState[i].state < SVGA3D_RS_MAX)
3554	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3555
3556	switch (pRenderState[i].state)
3557	{
3558	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3559	enableCap = GL_DEPTH_TEST;
3560	val = pRenderState[i].uintValue;
3561	break;
3562
3563	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3564	glDepthMask(!!pRenderState[i].uintValue);
3565	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3566	break;
3567
3568	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3569	enableCap = GL_ALPHA_TEST;
3570	val = pRenderState[i].uintValue;
3571	break;
3572
3573	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3574	enableCap = GL_DITHER;
3575	val = pRenderState[i].uintValue;
3576	break;
3577
3578	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3579	enableCap = GL_FOG;
3580	val = pRenderState[i].uintValue;
3581	break;
3582
3583	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3584	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3585	break;
3586
3587	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3588	enableCap = GL_LIGHTING;
3589	val = pRenderState[i].uintValue;
3590	break;
3591
3592	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3593	/* not applicable */
3594	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3595	break;
3596
3597	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3598	enableCap = GL_POINT_SPRITE_ARB;
3599	val = pRenderState[i].uintValue;
3600	break;
3601
3602	case SVGA3D_RS_POINTSIZE: /* float */
3603	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3604	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3605	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3606	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3607	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3608
3609	glPointSize(pRenderState[i].floatValue);
3610	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3611	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3612	break;
3613
3614	case SVGA3D_RS_POINTSIZEMIN: /* float */
3615	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3616	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3617	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3618	break;
3619
3620	case SVGA3D_RS_POINTSIZEMAX: /* float */
3621	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3622	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3623	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3624	break;
3625
3626	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3627	case SVGA3D_RS_POINTSCALE_A: /* float */
3628	case SVGA3D_RS_POINTSCALE_B: /* float */
3629	case SVGA3D_RS_POINTSCALE_C: /* float */
3630	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3631	break;
3632
3633	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3634	{
3635	GLfloat color[4]; /* red, green, blue, alpha */
3636
3637	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3638
3639	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3640	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3641	break;
3642	}
3643
3644	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3645	{
3646	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3647	for (uint32_t j = 0; j <= 5; j++)
3648	{
3649	if (pRenderState[i].uintValue & RT_BIT(j))
3650	glEnable(GL_CLIP_PLANE0 + j);
3651	else
3652	glDisable(GL_CLIP_PLANE0 + j);
3653	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3654	}
3655	break;
3656	}
3657
3658	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3659	{
3660	GLfloat color[4]; /* red, green, blue, alpha */
3661
3662	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3663
3664	glFogfv(GL_FOG_COLOR, color);
3665	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3666	break;
3667	}
3668
3669	case SVGA3D_RS_FOGSTART: /* float */
3670	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3672	break;
3673
3674	case SVGA3D_RS_FOGEND: /* float */
3675	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3676	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3677	break;
3678
3679	case SVGA3D_RS_FOGDENSITY: /* float */
3680	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3681	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3682	break;
3683
3684	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3685	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3686	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3687	break;
3688
3689	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3690	{
3691	SVGA3dFogMode mode;
3692	mode.uintValue = pRenderState[i].uintValue;
3693
3694	enableCap = GL_FOG_MODE;
3695	switch (mode.s.function)
3696	{
3697	case SVGA3D_FOGFUNC_EXP:
3698	val = GL_EXP;
3699	break;
3700	case SVGA3D_FOGFUNC_EXP2:
3701	val = GL_EXP2;
3702	break;
3703	case SVGA3D_FOGFUNC_LINEAR:
3704	val = GL_LINEAR;
3705	break;
3706	default:
3707	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3708	break;
3709	}
3710
3711	/** @todo how to switch between vertex and pixel fog modes??? */
3712	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3713	#if 0
3714	/* The fog type determines the render state. */
3715	switch (mode.s.type)
3716	{
3717	case SVGA3D_FOGTYPE_VERTEX:
3718	renderState = D3DRS_FOGVERTEXMODE;
3719	break;
3720	case SVGA3D_FOGTYPE_PIXEL:
3721	renderState = D3DRS_FOGTABLEMODE;
3722	break;
3723	default:
3724	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3725	break;
3726	}
3727	#endif
3728
3729	/* Set the fog base to depth or range. */
3730	switch (mode.s.base)
3731	{
3732	case SVGA3D_FOGBASE_DEPTHBASED:
3733	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3734	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3735	break;
3736	case SVGA3D_FOGBASE_RANGEBASED:
3737	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3738	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3739	break;
3740	default:
3741	/* ignore */
3742	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3743	break;
3744	}
3745	break;
3746	}
3747
3748	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3749	{
3750	SVGA3dFillMode mode;
3751
3752	mode.uintValue = pRenderState[i].uintValue;
3753
3754	switch (mode.s.mode)
3755	{
3756	case SVGA3D_FILLMODE_POINT:
3757	val = GL_POINT;
3758	break;
3759	case SVGA3D_FILLMODE_LINE:
3760	val = GL_LINE;
3761	break;
3762	case SVGA3D_FILLMODE_FILL:
3763	val = GL_FILL;
3764	break;
3765	default:
3766	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3767	break;
3768	}
3769	/* @note only front and back faces */
3770	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3771	glPolygonMode(GL_FRONT_AND_BACK, val);
3772	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3773	break;
3774	}
3775
3776	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3777	switch (pRenderState[i].uintValue)
3778	{
3779	case SVGA3D_SHADEMODE_FLAT:
3780	val = GL_FLAT;
3781	break;
3782
3783	case SVGA3D_SHADEMODE_SMOOTH:
3784	val = GL_SMOOTH;
3785	break;
3786
3787	default:
3788	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3789	break;
3790	}
3791
3792	glShadeModel(val);
3793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3794	break;
3795
3796	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3797	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3798	/** @todo */
3799	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3800	/*
3801	renderState = D3DRS_LINEPATTERN;
3802	val = pRenderState[i].uintValue;
3803	*/
3804	break;
3805
3806	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3807	enableCap = GL_LINE_SMOOTH;
3808	val = pRenderState[i].uintValue;
3809	break;
3810
3811	case SVGA3D_RS_LINEWIDTH: /* float */
3812	glLineWidth(pRenderState[i].floatValue);
3813	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3814	break;
3815
3816	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3817	{
3818	/* Refresh the blending state based on the new enable setting.
3819	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3820	*/
3821	static SVGA3dRenderStateName const saRefreshState[] =
3822	{
3823	SVGA3D_RS_SRCBLEND,
3824	SVGA3D_RS_BLENDEQUATION
3825	};
3826	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3827	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3828	{
3829	renderstate[j].state = saRefreshState[j];
3830	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3831	}
3832
3833	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3834	AssertRCReturn(rc, rc);
3835
3836	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3837	continue; /* Ignore if blend is enabled */
3838	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3839	} RT_FALL_THRU();
3840
3841	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3842	enableCap = GL_BLEND;
3843	val = pRenderState[i].uintValue;
3844	break;
3845
3846	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
3847	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
3848	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
3849	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
3850	{
3851	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
3852	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
3853
3854	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
3855	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3856	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
3857	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3858	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
3859	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3860	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
3861	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3862
3863	switch (pRenderState[i].state)
3864	{
3865	case SVGA3D_RS_SRCBLEND:
3866	srcRGB = blendop;
3867	break;
3868	case SVGA3D_RS_DSTBLEND:
3869	dstRGB = blendop;
3870	break;
3871	case SVGA3D_RS_SRCBLENDALPHA:
3872	srcAlpha = blendop;
3873	break;
3874	case SVGA3D_RS_DSTBLENDALPHA:
3875	dstAlpha = blendop;
3876	break;
3877	default:
3878	/* not possible; shut up gcc */
3879	AssertFailed();
3880	break;
3881	}
3882
3883	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3884	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
3885	else
3886	glBlendFunc(srcRGB, dstRGB);
3887	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3888	break;
3889	}
3890
3891	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
3892	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
3893	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3894	{
3895	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
3896	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
3897	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
3898	}
3899	else
3900	{
3901	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3902	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3903	#else
3904	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3905	#endif
3906	}
3907	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3908	break;
3909
3910	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
3911	{
3912	GLfloat red, green, blue, alpha;
3913
3914	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
3915
3916	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3917	glBlendColor(red, green, blue, alpha);
3918	#else
3919	pState->ext.glBlendColor(red, green, blue, alpha);
3920	#endif
3921	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3922	break;
3923	}
3924
3925	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
3926	{
3927	GLenum mode = GL_BACK; /* default for OpenGL */
3928
3929	switch (pRenderState[i].uintValue)
3930	{
3931	case SVGA3D_FACE_NONE:
3932	break;
3933	case SVGA3D_FACE_FRONT:
3934	mode = GL_FRONT;
3935	break;
3936	case SVGA3D_FACE_BACK:
3937	mode = GL_BACK;
3938	break;
3939	case SVGA3D_FACE_FRONT_BACK:
3940	mode = GL_FRONT_AND_BACK;
3941	break;
3942	default:
3943	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3944	break;
3945	}
3946	enableCap = GL_CULL_FACE;
3947	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
3948	{
3949	glCullFace(mode);
3950	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3951	val = 1;
3952	}
3953	else
3954	val = 0;
3955	break;
3956	}
3957
3958	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
3959	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
3960	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3961	break;
3962
3963	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
3964	{
3965	GLclampf ref;
3966
3967	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
3968	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3969	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
3970	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3971	break;
3972	}
3973
3974	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
3975	{
3976	GLint func;
3977
3978	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
3979	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3980	glAlphaFunc(func, pRenderState[i].floatValue);
3981	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3982	break;
3983	}
3984
3985	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
3986	{
3987	/* Refresh the stencil state based on the new enable setting.
3988	* This will take existing states and set them using either glStencil or glStencil*Separate.
3989	*/
3990	static SVGA3dRenderStateName const saRefreshState[] =
3991	{
3992	SVGA3D_RS_STENCILFUNC,
3993	SVGA3D_RS_STENCILFAIL,
3994	SVGA3D_RS_CCWSTENCILFUNC,
3995	SVGA3D_RS_CCWSTENCILFAIL
3996	};
3997	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3998	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3999	{
4000	renderstate[j].state = saRefreshState[j];
4001	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4002	}
4003
4004	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4005	AssertRCReturn(rc, rc);
4006
4007	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4008	continue; /* Ignore if stencil is enabled */
4009	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4010	} RT_FALL_THRU();
4011
4012	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4013	enableCap = GL_STENCIL_TEST;
4014	val = pRenderState[i].uintValue;
4015	break;
4016
4017	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4018	case SVGA3D_RS_STENCILREF: /* uint32_t */
4019	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4020	{
4021	GLint func, ref;
4022	GLuint mask;
4023
4024	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4025	glGetIntegerv(GL_STENCIL_FUNC, &func);
4026	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4027	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4028	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4029	glGetIntegerv(GL_STENCIL_REF, &ref);
4030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4031
4032	/* Update the changed value. */
4033	switch (pRenderState[i].state)
4034	{
4035	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4036	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4037	break;
4038
4039	case SVGA3D_RS_STENCILREF: /* uint32_t */
4040	ref = pRenderState[i].uintValue;
4041	break;
4042
4043	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4044	mask = pRenderState[i].uintValue;
4045	break;
4046
4047	default:
4048	/* not possible; shut up gcc */
4049	AssertFailed();
4050	break;
4051	}
4052
4053	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4054	{
4055	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4056	}
4057	else
4058	{
4059	glStencilFunc(func, ref, mask);
4060	}
4061	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4062	break;
4063	}
4064
4065	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4066	glStencilMask(pRenderState[i].uintValue);
4067	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4068	break;
4069
4070	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4071	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4072	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4073	{
4074	GLint sfail, dpfail, dppass;
4075	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4076
4077	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4079	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4081	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4082	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4083
4084	switch (pRenderState[i].state)
4085	{
4086	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4087	sfail = stencilop;
4088	break;
4089	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4090	dpfail = stencilop;
4091	break;
4092	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4093	dppass = stencilop;
4094	break;
4095	default:
4096	/* not possible; shut up gcc */
4097	AssertFailed();
4098	break;
4099	}
4100	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4101	{
4102	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4103	}
4104	else
4105	{
4106	glStencilOp(sfail, dpfail, dppass);
4107	}
4108	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4109	break;
4110	}
4111
4112	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4113	{
4114	GLint ref;
4115	GLuint mask;
4116	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4117
4118	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4119	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4120	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4121	glGetIntegerv(GL_STENCIL_REF, &ref);
4122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4123
4124	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4126	break;
4127	}
4128
4129	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4130	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4131	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4132	{
4133	GLint sfail, dpfail, dppass;
4134	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4135
4136	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4138	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4140	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4142
4143	switch (pRenderState[i].state)
4144	{
4145	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4146	sfail = stencilop;
4147	break;
4148	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4149	dpfail = stencilop;
4150	break;
4151	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4152	dppass = stencilop;
4153	break;
4154	default:
4155	/* not possible; shut up gcc */
4156	AssertFailed();
4157	break;
4158	}
4159	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4161	break;
4162	}
4163
4164	case SVGA3D_RS_ZBIAS: /* float */
4165	/** @todo unknown meaning; depth bias is not identical
4166	renderState = D3DRS_DEPTHBIAS;
4167	val = pRenderState[i].uintValue;
4168	*/
4169	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4170	break;
4171
4172	case SVGA3D_RS_DEPTHBIAS: /* float */
4173	{
4174	GLfloat factor;
4175
4176	/** @todo not sure if the d3d & ogl definitions are identical. */
4177
4178	/* Do not change the factor part. */
4179	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4181
4182	glPolygonOffset(factor, pRenderState[i].floatValue);
4183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4184	break;
4185	}
4186
4187	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4188	{
4189	GLfloat units;
4190
4191	/** @todo not sure if the d3d & ogl definitions are identical. */
4192
4193	/* Do not change the factor part. */
4194	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4195	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4196
4197	glPolygonOffset(pRenderState[i].floatValue, units);
4198	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4199	break;
4200	}
4201
4202	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4203	{
4204	GLboolean red, green, blue, alpha;
4205	SVGA3dColorMask mask;
4206
4207	mask.uintValue = pRenderState[i].uintValue;
4208
4209	red = mask.s.red;
4210	green = mask.s.green;
4211	blue = mask.s.blue;
4212	alpha = mask.s.alpha;
4213
4214	glColorMask(red, green, blue, alpha);
4215	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4216	break;
4217	}
4218
4219	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4220	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4221	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4222	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4223	break;
4224
4225	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4226	enableCap = GL_SCISSOR_TEST;
4227	val = pRenderState[i].uintValue;
4228	break;
4229
4230	#if 0
4231	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4232	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4233	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4234	val = pRenderState[i].uintValue;
4235	break;
4236
4237	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4238	renderState = D3DRS_SPECULARMATERIALSOURCE;
4239	val = pRenderState[i].uintValue;
4240	break;
4241
4242	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4243	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4244	val = pRenderState[i].uintValue;
4245	break;
4246
4247	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4248	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4249	val = pRenderState[i].uintValue;
4250	break;
4251	#endif
4252
4253	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4254	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4255	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4256	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4257	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4258	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4259	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4260	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4261	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4262	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4263	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4264	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4265	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4266	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4267	break;
4268
4269	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4270	case SVGA3D_RS_TWEENFACTOR: /* float */
4271	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4272	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4273	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4274	break;
4275
4276	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4277	enableCap = GL_MULTISAMPLE;
4278	val = pRenderState[i].uintValue;
4279	break;
4280
4281	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4282	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4283	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4284	break;
4285
4286	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4287	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4288	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4289	/*
4290	renderState = D3DRS_COORDINATETYPE;
4291	val = pRenderState[i].uintValue;
4292	*/
4293	break;
4294
4295	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4296	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4297	/* Invert the selected mode because of y-inversion (?) */
4298	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4299	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4300	break;
4301
4302	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4303	//AssertFailed();
4304	/*
4305	D3DRS_SRGBWRITEENABLE ??
4306	renderState = D3DRS_OUTPUTGAMMA;
4307	val = pRenderState[i].uintValue;
4308	*/
4309	break;
4310
4311	#if 0
4312
4313	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4314	//AssertFailed();
4315	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4316	val = pRenderState[i].uintValue;
4317	break;
4318
4319	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4320	renderState = D3DRS_TEXTUREFACTOR;
4321	val = pRenderState[i].uintValue;
4322	break;
4323
4324	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4325	renderState = D3DRS_LOCALVIEWER;
4326	val = pRenderState[i].uintValue;
4327	break;
4328
4329	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4330	AssertFailed();
4331	/*
4332	renderState = D3DRS_ZVISIBLE;
4333	val = pRenderState[i].uintValue;
4334	*/
4335	break;
4336
4337	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4338	renderState = D3DRS_CLIPPING;
4339	val = pRenderState[i].uintValue;
4340	break;
4341
4342	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4343	glTexParameter GL_TEXTURE_WRAP_S
4344	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4345	renderState = D3DRS_WRAP0;
4346	val = pRenderState[i].uintValue;
4347	break;
4348
4349	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4350	glTexParameter GL_TEXTURE_WRAP_T
4351	renderState = D3DRS_WRAP1;
4352	val = pRenderState[i].uintValue;
4353	break;
4354
4355	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4356	glTexParameter GL_TEXTURE_WRAP_R
4357	renderState = D3DRS_WRAP2;
4358	val = pRenderState[i].uintValue;
4359	break;
4360
4361
4362	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4363	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4364	val = pRenderState[i].uintValue;
4365	break;
4366
4367
4368	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4369	renderState = D3DRS_BLENDOPALPHA;
4370	val = pRenderState[i].uintValue;
4371	break;
4372
4373	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4374	AssertFailed();
4375	/*
4376	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4377	val = pRenderState[i].uintValue;
4378	*/
4379	break;
4380
4381	#endif
4382	default:
4383	AssertFailed();
4384	break;
4385	}
4386
4387	if (enableCap != ~(GLenum)0)
4388	{
4389	if (val)
4390	glEnable(enableCap);
4391	else
4392	glDisable(enableCap);
4393	}
4394	}
4395
4396	return VINF_SUCCESS;
4397	}
4398
4399	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4400	{
4401	PVMSVGA3DCONTEXT pContext;
4402	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4403	PVMSVGA3DSURFACE pRenderTarget;
4404
4405	AssertReturn(pState, VERR_NO_MEMORY);
4406	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4407
4408	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4409
4410	if ( cid >= pState->cContexts
4411	\|\| pState->papContexts[cid]->id != cid)
4412	{
4413	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4414	return VERR_INVALID_PARAMETER;
4415	}
4416	pContext = pState->papContexts[cid];
4417	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4418
4419	/* Save for vm state save/restore. */
4420	pContext->state.aRenderTargets[type] = target.sid;
4421
4422	if (target.sid == SVGA3D_INVALID_ID)
4423	{
4424	/* Disable render target. */
4425	switch (type)
4426	{
4427	case SVGA3D_RT_DEPTH:
4428	case SVGA3D_RT_STENCIL:
4429	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4431	break;
4432
4433	case SVGA3D_RT_COLOR0:
4434	case SVGA3D_RT_COLOR1:
4435	case SVGA3D_RT_COLOR2:
4436	case SVGA3D_RT_COLOR3:
4437	case SVGA3D_RT_COLOR4:
4438	case SVGA3D_RT_COLOR5:
4439	case SVGA3D_RT_COLOR6:
4440	case SVGA3D_RT_COLOR7:
4441	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4442	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4443	break;
4444
4445	default:
4446	AssertFailedReturn(VERR_INVALID_PARAMETER);
4447	}
4448	return VINF_SUCCESS;
4449	}
4450
4451	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4452	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4453	pRenderTarget = pState->papSurfaces[target.sid];
4454
4455	switch (type)
4456	{
4457	case SVGA3D_RT_DEPTH:
4458	case SVGA3D_RT_STENCIL:
4459	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4460	#if 1
4461	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4462	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4463	{
4464	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
4465	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
4466	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4467	AssertRCReturn(rc, rc);
4468	}
4469
4470	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4471	Assert(!pRenderTarget->fDirty);
4472
4473	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4474
4475	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
4476	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4477	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4479	#else
4480	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4481	{
4482	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4483	pContext = &pState->SharedCtx;
4484	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4485
4486	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4487	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4488
4489	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4491
4492	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4493	pRenderTarget->internalFormatGL,
4494	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4495	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4496	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4497
4498	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4500
4501	pContext = pState->papContexts[cid];
4502	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4503	pRenderTarget->idWeakContextAssociation = cid;
4504	}
4505
4506	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4507	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4508	Assert(!pRenderTarget->fDirty);
4509	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4510
4511	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4512
4513	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4514	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4515	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4516	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4517	#endif
4518	break;
4519
4520	case SVGA3D_RT_COLOR0:
4521	case SVGA3D_RT_COLOR1:
4522	case SVGA3D_RT_COLOR2:
4523	case SVGA3D_RT_COLOR3:
4524	case SVGA3D_RT_COLOR4:
4525	case SVGA3D_RT_COLOR5:
4526	case SVGA3D_RT_COLOR6:
4527	case SVGA3D_RT_COLOR7:
4528	{
4529	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4530	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4531	{
4532	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));
4533	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4534	AssertRCReturn(rc, rc);
4535	}
4536
4537	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4538	Assert(!pRenderTarget->fDirty);
4539
4540	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4541
4542	GLenum textarget;
4543	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4544	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4545	else
4546	textarget = GL_TEXTURE_2D;
4547	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4548	textarget, pRenderTarget->oglId.texture, target.mipmap);
4549	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4550
4551	#ifdef DEBUG
4552	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4553	if (status != GL_FRAMEBUFFER_COMPLETE)
4554	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4555	#endif
4556	/** @todo use glDrawBuffers too? */
4557	break;
4558	}
4559
4560	default:
4561	AssertFailedReturn(VERR_INVALID_PARAMETER);
4562	}
4563
4564	return VINF_SUCCESS;
4565	}
4566
4567	#if 0
4568	/**
4569	* Convert SVGA texture combiner value to its D3D equivalent
4570	*/
4571	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4572	{
4573	switch (value)
4574	{
4575	case SVGA3D_TC_DISABLE:
4576	return D3DTOP_DISABLE;
4577	case SVGA3D_TC_SELECTARG1:
4578	return D3DTOP_SELECTARG1;
4579	case SVGA3D_TC_SELECTARG2:
4580	return D3DTOP_SELECTARG2;
4581	case SVGA3D_TC_MODULATE:
4582	return D3DTOP_MODULATE;
4583	case SVGA3D_TC_ADD:
4584	return D3DTOP_ADD;
4585	case SVGA3D_TC_ADDSIGNED:
4586	return D3DTOP_ADDSIGNED;
4587	case SVGA3D_TC_SUBTRACT:
4588	return D3DTOP_SUBTRACT;
4589	case SVGA3D_TC_BLENDTEXTUREALPHA:
4590	return D3DTOP_BLENDTEXTUREALPHA;
4591	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4592	return D3DTOP_BLENDDIFFUSEALPHA;
4593	case SVGA3D_TC_BLENDCURRENTALPHA:
4594	return D3DTOP_BLENDCURRENTALPHA;
4595	case SVGA3D_TC_BLENDFACTORALPHA:
4596	return D3DTOP_BLENDFACTORALPHA;
4597	case SVGA3D_TC_MODULATE2X:
4598	return D3DTOP_MODULATE2X;
4599	case SVGA3D_TC_MODULATE4X:
4600	return D3DTOP_MODULATE4X;
4601	case SVGA3D_TC_DSDT:
4602	AssertFailed(); /** @todo ??? */
4603	return D3DTOP_DISABLE;
4604	case SVGA3D_TC_DOTPRODUCT3:
4605	return D3DTOP_DOTPRODUCT3;
4606	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4607	return D3DTOP_BLENDTEXTUREALPHAPM;
4608	case SVGA3D_TC_ADDSIGNED2X:
4609	return D3DTOP_ADDSIGNED2X;
4610	case SVGA3D_TC_ADDSMOOTH:
4611	return D3DTOP_ADDSMOOTH;
4612	case SVGA3D_TC_PREMODULATE:
4613	return D3DTOP_PREMODULATE;
4614	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4615	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4616	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4617	return D3DTOP_MODULATECOLOR_ADDALPHA;
4618	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4619	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4620	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4621	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4622	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4623	return D3DTOP_BUMPENVMAPLUMINANCE;
4624	case SVGA3D_TC_MULTIPLYADD:
4625	return D3DTOP_MULTIPLYADD;
4626	case SVGA3D_TC_LERP:
4627	return D3DTOP_LERP;
4628	default:
4629	AssertFailed();
4630	return D3DTOP_DISABLE;
4631	}
4632	}
4633
4634	/**
4635	* Convert SVGA texture arg data value to its D3D equivalent
4636	*/
4637	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4638	{
4639	switch (value)
4640	{
4641	case SVGA3D_TA_CONSTANT:
4642	return D3DTA_CONSTANT;
4643	case SVGA3D_TA_PREVIOUS:
4644	return D3DTA_CURRENT; /* current = previous */
4645	case SVGA3D_TA_DIFFUSE:
4646	return D3DTA_DIFFUSE;
4647	case SVGA3D_TA_TEXTURE:
4648	return D3DTA_TEXTURE;
4649	case SVGA3D_TA_SPECULAR:
4650	return D3DTA_SPECULAR;
4651	default:
4652	AssertFailed();
4653	return 0;
4654	}
4655	}
4656
4657	/**
4658	* Convert SVGA texture transform flag value to its D3D equivalent
4659	*/
4660	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4661	{
4662	switch (value)
4663	{
4664	case SVGA3D_TEX_TRANSFORM_OFF:
4665	return D3DTTFF_DISABLE;
4666	case SVGA3D_TEX_TRANSFORM_S:
4667	return D3DTTFF_COUNT1; /** @todo correct? */
4668	case SVGA3D_TEX_TRANSFORM_T:
4669	return D3DTTFF_COUNT2; /** @todo correct? */
4670	case SVGA3D_TEX_TRANSFORM_R:
4671	return D3DTTFF_COUNT3; /** @todo correct? */
4672	case SVGA3D_TEX_TRANSFORM_Q:
4673	return D3DTTFF_COUNT4; /** @todo correct? */
4674	case SVGA3D_TEX_PROJECTED:
4675	return D3DTTFF_PROJECTED;
4676	default:
4677	AssertFailed();
4678	return 0;
4679	}
4680	}
4681	#endif
4682
4683	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4684	{
4685	switch (value)
4686	{
4687	case SVGA3D_TEX_ADDRESS_WRAP:
4688	return GL_REPEAT;
4689	case SVGA3D_TEX_ADDRESS_MIRROR:
4690	return GL_MIRRORED_REPEAT;
4691	case SVGA3D_TEX_ADDRESS_CLAMP:
4692	return GL_CLAMP_TO_EDGE;
4693	case SVGA3D_TEX_ADDRESS_BORDER:
4694	return GL_CLAMP_TO_BORDER;
4695	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4696	AssertFailed();
4697	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4698
4699	case SVGA3D_TEX_ADDRESS_EDGE:
4700	case SVGA3D_TEX_ADDRESS_INVALID:
4701	default:
4702	AssertFailed();
4703	return GL_REPEAT; /* default */
4704	}
4705	}
4706
4707	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4708	{
4709	switch (value)
4710	{
4711	case SVGA3D_TEX_FILTER_NONE:
4712	case SVGA3D_TEX_FILTER_LINEAR:
4713	return GL_LINEAR;
4714	case SVGA3D_TEX_FILTER_NEAREST:
4715	return GL_NEAREST;
4716	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4717	/** @todo */
4718	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4719	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4720	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4721	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4722	default:
4723	AssertFailed();
4724	return GL_LINEAR; /* default */
4725	}
4726	}
4727
4728	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4729	{
4730	/* flip the red and blue bytes */
4731	uint8_t blue = value & 0xff;
4732	uint8_t red = (value >> 16) & 0xff;
4733	return (value & 0xff00ff00) \| red \| (blue << 16);
4734	}
4735
4736	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4737	{
4738	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4739	GLenum currentStage = ~(GLenum)0;
4740	PVMSVGA3DCONTEXT pContext;
4741	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4742	AssertReturn(pState, VERR_NO_MEMORY);
4743
4744	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4745
4746	if ( cid >= pState->cContexts
4747	\|\| pState->papContexts[cid]->id != cid)
4748	{
4749	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4750	return VERR_INVALID_PARAMETER;
4751	}
4752	pContext = pState->papContexts[cid];
4753	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4754
4755	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4756	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4757
4758	for (uint32_t i = 0; i < cTextureStates; ++i)
4759	{
4760	GLenum textureType = ~(GLenum)0;
4761	#if 0
4762	GLenum samplerType = ~(GLenum)0;
4763	#endif
4764
4765	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4766	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4767
4768	/* Record the texture state for vm state saving. */
4769	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4770	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4771	{
4772	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4773	}
4774
4775	/* Activate the right texture unit for subsequent texture state changes. */
4776	if (pTextureState[i].stage != currentStage \|\| i == 0)
4777	{
4778	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4779	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4780	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4781	{
4782	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4783	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4784	currentStage = pTextureState[i].stage;
4785	}
4786	else
4787	{
4788	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4789	continue;
4790	}
4791
4792	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4793	{
4794	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4795	AssertRCReturn(rc, rc);
4796	}
4797	else
4798	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4799	}
4800
4801	switch (pTextureState[i].name)
4802	{
4803	case SVGA3D_TS_BUMPENVMAT00: /* float */
4804	case SVGA3D_TS_BUMPENVMAT01: /* float */
4805	case SVGA3D_TS_BUMPENVMAT10: /* float */
4806	case SVGA3D_TS_BUMPENVMAT11: /* float */
4807	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4808	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4809	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4810	break;
4811
4812	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4813	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4814	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4815	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4816	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4817	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4818	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4819	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4820	/** @todo not used by MesaGL */
4821	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4822	break;
4823	#if 0
4824
4825	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4826	textureType = D3DTSS_TEXCOORDINDEX;
4827	val = pTextureState[i].value;
4828	break;
4829
4830	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4831	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4832	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4833	break;
4834	#endif
4835
4836	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4837	{
4838	uint32_t const sid = pTextureState[i].value;
4839
4840	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4841	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4842
4843	/* Only if texture actually changed. */ /// @todo needs testing.
4844	if (pContext->aSidActiveTextures[currentStage] != sid)
4845	{
4846	if (pCurrentTextureSurface)
4847	{
4848	/* Unselect the currently associated texture. */
4849	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4850	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4851
4852	if (currentStage < 8)
4853	{
4854	/* Necessary for the fixed pipeline. */
4855	glDisable(pCurrentTextureSurface->targetGL);
4856	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4857	}
4858
4859	pCurrentTextureSurface = NULL;
4860	}
4861
4862	if (sid == SVGA3D_INVALID_ID)
4863	{
4864	Assert(pCurrentTextureSurface == NULL);
4865	}
4866	else
4867	{
4868	PVMSVGA3DSURFACE pSurface;
4869	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
4870	AssertRCReturn(rc, rc);
4871
4872	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
4873	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
4874	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
4875
4876	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
4877	{
4878	Log(("CreateTexture (%d,%d) levels=%d\n",
4879	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
4880	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
4881	AssertRCReturn(rc, rc);
4882	}
4883
4884	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
4885	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4886
4887	if (currentStage < 8)
4888	{
4889	/* Necessary for the fixed pipeline. */
4890	glEnable(pSurface->targetGL);
4891	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4892	}
4893
4894	/* Remember the currently active texture. */
4895	pCurrentTextureSurface = pSurface;
4896
4897	/* Recreate the texture state as glBindTexture resets them all (sigh). */
4898	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
4899	{
4900	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
4901	{
4902	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
4903
4904	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
4905	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
4906	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
4907	}
4908	}
4909	}
4910
4911	pContext->aSidActiveTextures[currentStage] = sid;
4912	}
4913
4914	/* Finished; continue with the next one. */
4915	continue;
4916	}
4917
4918	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
4919	textureType = GL_TEXTURE_WRAP_R; /* R = W */
4920	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4921	break;
4922
4923	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
4924	textureType = GL_TEXTURE_WRAP_S; /* S = U */
4925	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4926	break;
4927
4928	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
4929	textureType = GL_TEXTURE_WRAP_T; /* T = V */
4930	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4931	break;
4932
4933	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
4934	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
4935	{
4936	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
4937	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
4938
4939	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
4940	textureType = GL_TEXTURE_MIN_FILTER;
4941	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
4942	{
4943	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
4944	{
4945	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4946	val = GL_NEAREST_MIPMAP_LINEAR;
4947	else
4948	val = GL_NEAREST_MIPMAP_NEAREST;
4949	}
4950	else
4951	{
4952	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4953	val = GL_LINEAR_MIPMAP_LINEAR;
4954	else
4955	val = GL_LINEAR_MIPMAP_NEAREST;
4956	}
4957	}
4958	else
4959	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
4960	break;
4961	}
4962
4963	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
4964	textureType = GL_TEXTURE_MAG_FILTER;
4965	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
4966	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
4967	break;
4968
4969	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
4970	{
4971	GLfloat color[4]; /* red, green, blue, alpha */
4972	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
4973
4974	GLenum targetGL;
4975	if (pCurrentTextureSurface)
4976	targetGL = pCurrentTextureSurface->targetGL;
4977	else
4978	{
4979	/* No texture bound, assume 2D. */
4980	targetGL = GL_TEXTURE_2D;
4981	}
4982
4983	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
4984	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4985	break;
4986	}
4987
4988	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
4989	{
4990	GLenum targetGL;
4991	if (pCurrentTextureSurface)
4992	targetGL = pCurrentTextureSurface->targetGL;
4993	else
4994	{
4995	/* No texture bound, assume 2D. */
4996	targetGL = GL_TEXTURE_2D;
4997	}
4998
4999	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5001	break;
5002	}
5003
5004	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5005	textureType = GL_TEXTURE_BASE_LEVEL;
5006	val = pTextureState[i].value;
5007	break;
5008
5009	#if 0
5010	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5011	samplerType = D3DSAMP_MAXANISOTROPY;
5012	val = pTextureState[i].value; /* Identical?? */
5013	break;
5014
5015	case SVGA3D_TS_GAMMA: /* float */
5016	samplerType = D3DSAMP_SRGBTEXTURE;
5017	/* Boolean in D3D */
5018	if (pTextureState[i].floatValue == 1.0f)
5019	val = FALSE;
5020	else
5021	val = TRUE;
5022	break;
5023	#endif
5024	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5025	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5026	AssertFailed();
5027	break;
5028
5029	default:
5030	//AssertFailed();
5031	break;
5032	}
5033
5034	if (textureType != ~(GLenum)0)
5035	{
5036	GLenum targetGL;
5037	if (pCurrentTextureSurface)
5038	targetGL = pCurrentTextureSurface->targetGL;
5039	else
5040	{
5041	/* No texture bound, assume 2D. */
5042	targetGL = GL_TEXTURE_2D;
5043	}
5044
5045	glTexParameteri(targetGL, textureType, val);
5046	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5047	}
5048	}
5049
5050	return VINF_SUCCESS;
5051	}
5052
5053	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5054	{
5055	PVMSVGA3DCONTEXT pContext;
5056	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5057	AssertReturn(pState, VERR_NO_MEMORY);
5058	GLenum oglFace;
5059
5060	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5061
5062	if ( cid >= pState->cContexts
5063	\|\| pState->papContexts[cid]->id != cid)
5064	{
5065	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5066	return VERR_INVALID_PARAMETER;
5067	}
5068	pContext = pState->papContexts[cid];
5069	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5070
5071	switch (face)
5072	{
5073	case SVGA3D_FACE_NONE:
5074	case SVGA3D_FACE_FRONT:
5075	oglFace = GL_FRONT;
5076	break;
5077
5078	case SVGA3D_FACE_BACK:
5079	oglFace = GL_BACK;
5080	break;
5081
5082	case SVGA3D_FACE_FRONT_BACK:
5083	oglFace = GL_FRONT_AND_BACK;
5084	break;
5085
5086	default:
5087	AssertFailedReturn(VERR_INVALID_PARAMETER);
5088	}
5089
5090	/* Save for vm state save/restore. */
5091	pContext->state.aMaterial[face].fValid = true;
5092	pContext->state.aMaterial[face].material = *pMaterial;
5093	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5094
5095	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5096	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5097	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5098	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5099	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5100	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5101
5102	return VINF_SUCCESS;
5103	}
5104
5105	/** @todo Move into separate library as we are using logic from Wine here. */
5106	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5107	{
5108	PVMSVGA3DCONTEXT pContext;
5109	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5110	AssertReturn(pState, VERR_NO_MEMORY);
5111	float QuadAttenuation;
5112
5113	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5114
5115	if ( cid >= pState->cContexts
5116	\|\| pState->papContexts[cid]->id != cid)
5117	{
5118	Log(("vmsvga3dSetLightData invalid context id!\n"));
5119	return VERR_INVALID_PARAMETER;
5120	}
5121	pContext = pState->papContexts[cid];
5122	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5123
5124	/* Store for vm state save/restore */
5125	if (index < SVGA3D_MAX_LIGHTS)
5126	{
5127	pContext->state.aLightData[index].fValidData = true;
5128	pContext->state.aLightData[index].data = *pData;
5129	}
5130	else
5131	AssertFailed();
5132
5133	if ( pData->attenuation0 < 0.0f
5134	\|\| pData->attenuation1 < 0.0f
5135	\|\| pData->attenuation2 < 0.0f)
5136	{
5137	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5138	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5139	}
5140
5141	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5142	glMatrixMode(GL_MODELVIEW);
5143	glPushMatrix();
5144	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5145
5146	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5147	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5148	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5149
5150	if (pData->range * pData->range >= FLT_MIN)
5151	QuadAttenuation = 1.4f / (pData->range * pData->range);
5152	else
5153	QuadAttenuation = 0.0f;
5154
5155	switch (pData->type)
5156	{
5157	case SVGA3D_LIGHTTYPE_POINT:
5158	{
5159	GLfloat position[4];
5160
5161	position[0] = pData->position[0];
5162	position[1] = pData->position[1];
5163	position[2] = pData->position[2];
5164	position[3] = 1.0f;
5165
5166	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5167	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5168
5169	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5170	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5171
5172	/* Attenuation - Are these right? guessing... */
5173	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5174	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5175
5176	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5177	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5178
5179	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5180	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5181
5182	/** @todo range */
5183	break;
5184	}
5185
5186	case SVGA3D_LIGHTTYPE_SPOT1:
5187	{
5188	GLfloat exponent;
5189	GLfloat position[4];
5190	const GLfloat pi = 4.0f * atanf(1.0f);
5191
5192	position[0] = pData->position[0];
5193	position[1] = pData->position[1];
5194	position[2] = pData->position[2];
5195	position[3] = 1.0f;
5196
5197	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5198	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5199
5200	position[0] = pData->direction[0];
5201	position[1] = pData->direction[1];
5202	position[2] = pData->direction[2];
5203	position[3] = 1.0f;
5204
5205	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5206	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5207
5208	/*
5209	* opengl-ish and d3d-ish spot lights use too different models for the
5210	* light "intensity" as a function of the angle towards the main light direction,
5211	* so we only can approximate very roughly.
5212	* however spot lights are rather rarely used in games (if ever used at all).
5213	* furthermore if still used, probably nobody pays attention to such details.
5214	*/
5215	if (pData->falloff == 0)
5216	{
5217	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5218	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5219	* will always be 1.0 for both of them, and we don't have to care for the
5220	* rest of the rather complex calculation
5221	*/
5222	exponent = 0.0f;
5223	}
5224	else
5225	{
5226	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5227	if (rho < 0.0001f)
5228	rho = 0.0001f;
5229	exponent = -0.3f/log(cos(rho/2));
5230	}
5231	if (exponent > 128.0f)
5232	exponent = 128.0f;
5233
5234	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5235	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5236
5237	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5238	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5239
5240	/* Attenuation - Are these right? guessing... */
5241	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5242	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5243
5244	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5245	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5246
5247	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5248	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5249
5250	/** @todo range */
5251	break;
5252	}
5253
5254	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5255	{
5256	GLfloat position[4];
5257
5258	position[0] = -pData->direction[0];
5259	position[1] = -pData->direction[1];
5260	position[2] = -pData->direction[2];
5261	position[3] = 0.0f;
5262
5263	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5264	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5265
5266	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5267	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5268
5269	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5270	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5271	break;
5272	}
5273
5274	case SVGA3D_LIGHTTYPE_SPOT2:
5275	default:
5276	Log(("Unsupported light type!!\n"));
5277	return VERR_INVALID_PARAMETER;
5278	}
5279
5280	/* Restore the modelview matrix */
5281	glPopMatrix();
5282
5283	return VINF_SUCCESS;
5284	}
5285
5286	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5287	{
5288	PVMSVGA3DCONTEXT pContext;
5289	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5290	AssertReturn(pState, VERR_NO_MEMORY);
5291
5292	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5293
5294	if ( cid >= pState->cContexts
5295	\|\| pState->papContexts[cid]->id != cid)
5296	{
5297	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5298	return VERR_INVALID_PARAMETER;
5299	}
5300	pContext = pState->papContexts[cid];
5301	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5302
5303	/* Store for vm state save/restore */
5304	if (index < SVGA3D_MAX_LIGHTS)
5305	pContext->state.aLightData[index].fEnabled = !!enabled;
5306	else
5307	AssertFailed();
5308
5309	if (enabled)
5310	{
5311	/* Load the default settings if none have been set yet. */
5312	if (!pContext->state.aLightData[index].fValidData)
5313	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5314	glEnable(GL_LIGHT0 + index);
5315	}
5316	else
5317	glDisable(GL_LIGHT0 + index);
5318
5319	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5320	return VINF_SUCCESS;
5321	}
5322
5323	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5324	{
5325	PVMSVGA3DCONTEXT pContext;
5326	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5327	AssertReturn(pState, VERR_NO_MEMORY);
5328
5329	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5330
5331	if ( cid >= pState->cContexts
5332	\|\| pState->papContexts[cid]->id != cid)
5333	{
5334	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5335	return VERR_INVALID_PARAMETER;
5336	}
5337	pContext = pState->papContexts[cid];
5338	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5339
5340	/* Save for vm state save/restore. */
5341	pContext->state.RectViewPort = *pRect;
5342	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5343
5344	/** @todo y-inversion for partial viewport coordinates? */
5345	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5346	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5347
5348	/* Reset the projection matrix as that relies on the viewport setting. */
5349	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5350	{
5351	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5352	}
5353	else
5354	{
5355	float matrix[16];
5356
5357	/* identity matrix if no matrix set. */
5358	memset(matrix, 0, sizeof(matrix));
5359	matrix[0] = 1.0;
5360	matrix[5] = 1.0;
5361	matrix[10] = 1.0;
5362	matrix[15] = 1.0;
5363	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5364	}
5365
5366	return VINF_SUCCESS;
5367	}
5368
5369	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5370	{
5371	PVMSVGA3DCONTEXT pContext;
5372	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5373	AssertReturn(pState, VERR_NO_MEMORY);
5374	double oglPlane[4];
5375
5376	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)));
5377	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5378
5379	if ( cid >= pState->cContexts
5380	\|\| pState->papContexts[cid]->id != cid)
5381	{
5382	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5383	return VERR_INVALID_PARAMETER;
5384	}
5385	pContext = pState->papContexts[cid];
5386	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5387
5388	/* Store for vm state save/restore. */
5389	pContext->state.aClipPlane[index].fValid = true;
5390	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5391
5392	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5393	oglPlane[0] = (double)plane[0];
5394	oglPlane[1] = (double)plane[1];
5395	oglPlane[2] = (double)plane[2];
5396	oglPlane[3] = (double)plane[3];
5397
5398	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5399	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5400
5401	return VINF_SUCCESS;
5402	}
5403
5404	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5405	{
5406	PVMSVGA3DCONTEXT pContext;
5407	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5408	AssertReturn(pState, VERR_NO_MEMORY);
5409
5410	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5411
5412	if ( cid >= pState->cContexts
5413	\|\| pState->papContexts[cid]->id != cid)
5414	{
5415	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5416	return VERR_INVALID_PARAMETER;
5417	}
5418	pContext = pState->papContexts[cid];
5419	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5420
5421	/* Store for vm state save/restore. */
5422	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5423	pContext->state.RectScissor = *pRect;
5424
5425	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5426	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5427
5428	return VINF_SUCCESS;
5429	}
5430
5431	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5432	{
5433	/* Convert byte color components to float (0-1.0) */
5434	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5435	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5436	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5437	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5438	}
5439
5440	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5441	uint32_t cRects, SVGA3dRect *pRect)
5442	{
5443	GLbitfield mask = 0;
5444	PVMSVGA3DCONTEXT pContext;
5445	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5446	AssertReturn(pState, VERR_NO_MEMORY);
5447	GLboolean fDepthWriteEnabled = GL_FALSE;
5448
5449	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));
5450
5451	if ( cid >= pState->cContexts
5452	\|\| pState->papContexts[cid]->id != cid)
5453	{
5454	Log(("vmsvga3dCommandClear invalid context id!\n"));
5455	return VERR_INVALID_PARAMETER;
5456	}
5457	pContext = pState->papContexts[cid];
5458	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5459
5460	if (clearFlag & SVGA3D_CLEAR_COLOR)
5461	{
5462	GLfloat red, green, blue, alpha;
5463
5464	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5465
5466	/* Set the color clear value. */
5467	glClearColor(red, green, blue, alpha);
5468
5469	mask \|= GL_COLOR_BUFFER_BIT;
5470	}
5471	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5472	{
5473	/** @todo possibly the same problem as with glDepthMask */
5474	glClearStencil(stencil);
5475	mask \|= GL_STENCIL_BUFFER_BIT;
5476	}
5477	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5478	{
5479	glClearDepth((GLdouble)depth);
5480	mask \|= GL_DEPTH_BUFFER_BIT;
5481
5482	/* glClear will not clear the depth buffer if writing is disabled. */
5483	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5484	if (fDepthWriteEnabled == GL_FALSE)
5485	glDepthMask(GL_TRUE);
5486	}
5487
5488	if (cRects)
5489	{
5490	/* Save the current scissor test bit and scissor box. */
5491	glPushAttrib(GL_SCISSOR_BIT);
5492	glEnable(GL_SCISSOR_TEST);
5493	for (unsigned i=0; i < cRects; i++)
5494	{
5495	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));
5496	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5497	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5498	glClear(mask);
5499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5500	}
5501	/* Restore the old scissor test bit and box */
5502	glPopAttrib();
5503	}
5504	else
5505	{
5506	glClear(mask);
5507	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5508	}
5509
5510	/* Restore depth write state. */
5511	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5512	&& fDepthWriteEnabled == GL_FALSE)
5513	glDepthMask(GL_FALSE);
5514
5515	return VINF_SUCCESS;
5516	}
5517
5518	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5519	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5520	{
5521	normalized = GL_FALSE;
5522	switch (identity.type)
5523	{
5524	case SVGA3D_DECLTYPE_FLOAT1:
5525	size = 1;
5526	type = GL_FLOAT;
5527	break;
5528	case SVGA3D_DECLTYPE_FLOAT2:
5529	size = 2;
5530	type = GL_FLOAT;
5531	break;
5532	case SVGA3D_DECLTYPE_FLOAT3:
5533	size = 3;
5534	type = GL_FLOAT;
5535	break;
5536	case SVGA3D_DECLTYPE_FLOAT4:
5537	size = 4;
5538	type = GL_FLOAT;
5539	break;
5540
5541	case SVGA3D_DECLTYPE_D3DCOLOR:
5542	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5543	type = GL_UNSIGNED_BYTE;
5544	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5545	break;
5546
5547	case SVGA3D_DECLTYPE_UBYTE4N:
5548	normalized = GL_TRUE;
5549	RT_FALL_THRU();
5550	case SVGA3D_DECLTYPE_UBYTE4:
5551	size = 4;
5552	type = GL_UNSIGNED_BYTE;
5553	break;
5554
5555	case SVGA3D_DECLTYPE_SHORT2N:
5556	normalized = GL_TRUE;
5557	RT_FALL_THRU();
5558	case SVGA3D_DECLTYPE_SHORT2:
5559	size = 2;
5560	type = GL_SHORT;
5561	break;
5562
5563	case SVGA3D_DECLTYPE_SHORT4N:
5564	normalized = GL_TRUE;
5565	RT_FALL_THRU();
5566	case SVGA3D_DECLTYPE_SHORT4:
5567	size = 4;
5568	type = GL_SHORT;
5569	break;
5570
5571	case SVGA3D_DECLTYPE_USHORT4N:
5572	normalized = GL_TRUE;
5573	size = 4;
5574	type = GL_UNSIGNED_SHORT;
5575	break;
5576
5577	case SVGA3D_DECLTYPE_USHORT2N:
5578	normalized = GL_TRUE;
5579	size = 2;
5580	type = GL_UNSIGNED_SHORT;
5581	break;
5582
5583	case SVGA3D_DECLTYPE_UDEC3:
5584	size = 3;
5585	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5586	break;
5587
5588	case SVGA3D_DECLTYPE_DEC3N:
5589	normalized = true;
5590	size = 3;
5591	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5592	break;
5593
5594	case SVGA3D_DECLTYPE_FLOAT16_2:
5595	size = 2;
5596	type = GL_HALF_FLOAT;
5597	break;
5598	case SVGA3D_DECLTYPE_FLOAT16_4:
5599	size = 4;
5600	type = GL_HALF_FLOAT;
5601	break;
5602	default:
5603	AssertFailedReturn(VERR_INVALID_PARAMETER);
5604	}
5605
5606	//pVertexElement->Method = identity.method;
5607	//pVertexElement->Usage = identity.usage;
5608
5609	return VINF_SUCCESS;
5610	}
5611
5612	/* Convert VMWare primitive type to its OpenGL equivalent. */
5613	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5614	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5615	{
5616	switch (PrimitiveType)
5617	{
5618	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5619	*pMode = GL_TRIANGLES;
5620	pcVertices = cPrimitiveCount 3;
5621	break;
5622	case SVGA3D_PRIMITIVE_POINTLIST:
5623	*pMode = GL_POINTS;
5624	*pcVertices = cPrimitiveCount;
5625	break;
5626	case SVGA3D_PRIMITIVE_LINELIST:
5627	*pMode = GL_LINES;
5628	pcVertices = cPrimitiveCount 2;
5629	break;
5630	case SVGA3D_PRIMITIVE_LINESTRIP:
5631	*pMode = GL_LINE_STRIP;
5632	*pcVertices = cPrimitiveCount + 1;
5633	break;
5634	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5635	*pMode = GL_TRIANGLE_STRIP;
5636	*pcVertices = cPrimitiveCount + 2;
5637	break;
5638	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5639	*pMode = GL_TRIANGLE_FAN;
5640	*pcVertices = cPrimitiveCount + 2;
5641	break;
5642	default:
5643	return VERR_INVALID_PARAMETER;
5644	}
5645	return VINF_SUCCESS;
5646	}
5647
5648	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5649	{
5650	int rc;
5651
5652	/* Reset the view matrix (also takes the world matrix into account). */
5653	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5654	{
5655	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5656	}
5657	else
5658	{
5659	float matrix[16];
5660
5661	/* identity matrix if no matrix set. */
5662	memset(matrix, 0, sizeof(matrix));
5663	matrix[0] = 1.0;
5664	matrix[5] = 1.0;
5665	matrix[10] = 1.0;
5666	matrix[15] = 1.0;
5667	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5668	}
5669
5670	/* Reset the projection matrix. */
5671	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5672	{
5673	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5674	}
5675	else
5676	{
5677	float matrix[16];
5678
5679	/* identity matrix if no matrix set. */
5680	memset(matrix, 0, sizeof(matrix));
5681	matrix[0] = 1.0;
5682	matrix[5] = 1.0;
5683	matrix[10] = 1.0;
5684	matrix[15] = 1.0;
5685	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5686	}
5687	AssertRC(rc);
5688	return rc;
5689	}
5690
5691	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5692	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5693	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5694	{
5695	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5696	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5697	PVMSVGA3DSURFACE pVertexSurface;
5698
5699	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5700	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5701
5702	pVertexSurface = pState->papSurfaces[sidVertex];
5703	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5704
5705	/* Create and/or bind the vertex buffer. */
5706	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5707	{
5708	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5709	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5710	pContext = &pState->SharedCtx;
5711	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5712
5713	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5714	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5715
5716	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5717	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5718
5719	Assert(pVertexSurface->fDirty);
5720	/** @todo rethink usage dynamic/static */
5721	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5722	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5723
5724	pVertexSurface->pMipmapLevels[0].fDirty = false;
5725	pVertexSurface->fDirty = false;
5726
5727	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5728
5729	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5730	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5731
5732	pContext = pSavedCtx;
5733	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5734	}
5735
5736	Assert(pVertexSurface->fDirty == false);
5737	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5738	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5739
5740	/* Setup the vertex declarations. */
5741	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5742	{
5743	GLint size;
5744	GLenum type;
5745	GLboolean normalized;
5746	GLuint index = iVertexDeclBase + iVertex;
5747
5748	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));
5749
5750	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5751	AssertRCReturn(rc, rc);
5752
5753	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5754	{
5755	/* Use numbered vertex arrays when shaders are active. */
5756	pState->ext.glEnableVertexAttribArray(index);
5757	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5758	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5759	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5760	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5761
5762	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5763	pState->ext.glVertexAttribDivisor(index, divisor);
5764	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5765
5766	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5767	}
5768	else
5769	{
5770	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5771	switch (pVertexDecl[iVertex].identity.usage)
5772	{
5773	case SVGA3D_DECLUSAGE_POSITIONT:
5774	case SVGA3D_DECLUSAGE_POSITION:
5775	{
5776	glEnableClientState(GL_VERTEX_ARRAY);
5777	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5778	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5779	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5780	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5781	break;
5782	}
5783	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5784	AssertFailed();
5785	break;
5786	case SVGA3D_DECLUSAGE_BLENDINDICES:
5787	AssertFailed();
5788	break;
5789	case SVGA3D_DECLUSAGE_NORMAL:
5790	glEnableClientState(GL_NORMAL_ARRAY);
5791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5792	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5793	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5794	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5795	break;
5796	case SVGA3D_DECLUSAGE_PSIZE:
5797	AssertFailed();
5798	break;
5799	case SVGA3D_DECLUSAGE_TEXCOORD:
5800	/* Specify the affected texture unit. */
5801	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5802	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5803	#else
5804	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5805	#endif
5806	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5807	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5808	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5809	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5810	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5811	break;
5812	case SVGA3D_DECLUSAGE_TANGENT:
5813	AssertFailed();
5814	break;
5815	case SVGA3D_DECLUSAGE_BINORMAL:
5816	AssertFailed();
5817	break;
5818	case SVGA3D_DECLUSAGE_TESSFACTOR:
5819	AssertFailed();
5820	break;
5821	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5822	glEnableClientState(GL_COLOR_ARRAY);
5823	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5824	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5825	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5826	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5827	break;
5828	case SVGA3D_DECLUSAGE_FOG:
5829	glEnableClientState(GL_FOG_COORD_ARRAY);
5830	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5831	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5832	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5833	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5834	break;
5835	case SVGA3D_DECLUSAGE_DEPTH:
5836	AssertFailed();
5837	break;
5838	case SVGA3D_DECLUSAGE_SAMPLE:
5839	AssertFailed();
5840	break;
5841	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5842	}
5843	}
5844
5845	#ifdef LOG_ENABLED
5846	if (pVertexDecl[iVertex].array.stride == 0)
5847	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5848	#endif
5849	}
5850
5851	return VINF_SUCCESS;
5852	}
5853
5854	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5855	{
5856	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5857
5858	/* Clean up the vertex declarations. */
5859	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5860	{
5861	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
5862	{
5863	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
5864	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
5865	vmsvga3dResetTransformMatrices(pThis, pContext);
5866	}
5867
5868	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5869	{
5870	/* Use numbered vertex arrays when shaders are active. */
5871	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5872	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5873	}
5874	else
5875	{
5876	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5877	switch (pVertexDecl[iVertex].identity.usage)
5878	{
5879	case SVGA3D_DECLUSAGE_POSITION:
5880	case SVGA3D_DECLUSAGE_POSITIONT:
5881	glDisableClientState(GL_VERTEX_ARRAY);
5882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5883	break;
5884	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5885	break;
5886	case SVGA3D_DECLUSAGE_BLENDINDICES:
5887	break;
5888	case SVGA3D_DECLUSAGE_NORMAL:
5889	glDisableClientState(GL_NORMAL_ARRAY);
5890	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5891	break;
5892	case SVGA3D_DECLUSAGE_PSIZE:
5893	break;
5894	case SVGA3D_DECLUSAGE_TEXCOORD:
5895	/* Specify the affected texture unit. */
5896	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5897	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5898	#else
5899	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5900	#endif
5901	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5902	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5903	break;
5904	case SVGA3D_DECLUSAGE_TANGENT:
5905	break;
5906	case SVGA3D_DECLUSAGE_BINORMAL:
5907	break;
5908	case SVGA3D_DECLUSAGE_TESSFACTOR:
5909	break;
5910	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
5911	glDisableClientState(GL_COLOR_ARRAY);
5912	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5913	break;
5914	case SVGA3D_DECLUSAGE_FOG:
5915	glDisableClientState(GL_FOG_COORD_ARRAY);
5916	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5917	break;
5918	case SVGA3D_DECLUSAGE_DEPTH:
5919	break;
5920	case SVGA3D_DECLUSAGE_SAMPLE:
5921	break;
5922	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5923	}
5924	}
5925	}
5926	/* Unbind the vertex buffer after usage. */
5927	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
5928	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5929	return VINF_SUCCESS;
5930	}
5931
5932	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
5933	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
5934	SVGA3dVertexDivisor *pVertexDivisor)
5935	{
5936	RT_NOREF(pVertexDivisor);
5937	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5938	AssertReturn(pState, VERR_INTERNAL_ERROR);
5939	PVMSVGA3DCONTEXT pContext;
5940	int rc = VERR_NOT_IMPLEMENTED;
5941	uint32_t iCurrentVertex;
5942
5943	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
5944
5945	/* Caller already check these, but it cannot hurt to check again... */
5946	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
5947	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
5948	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
5949
5950	if (!cVertexDivisor)
5951	pVertexDivisor = NULL; /* Be sure. */
5952
5953	if ( cid >= pState->cContexts
5954	\|\| pState->papContexts[cid]->id != cid)
5955	{
5956	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
5957	return VERR_INVALID_PARAMETER;
5958	}
5959	pContext = pState->papContexts[cid];
5960	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5961
5962	/* Check for pretransformed vertex declarations. */
5963	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5964	{
5965	switch (pVertexDecl[iVertex].identity.usage)
5966	{
5967	case SVGA3D_DECLUSAGE_POSITIONT:
5968	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
5969	RT_FALL_THRU();
5970	case SVGA3D_DECLUSAGE_POSITION:
5971	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
5972	pContext->state.RectViewPort.h,
5973	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
5974	break;
5975	default: /* Shut up MSC. */ break;
5976	}
5977	}
5978
5979	/* Try to figure out if instancing is used.
5980	* Support simple instancing case with one set of indexed data and one set per-instance data.
5981	*/
5982	uint32_t cInstances = 0;
5983	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
5984	{
5985	if (pVertexDivisor[iVertexDivisor].s.indexedData)
5986	{
5987	if (cInstances == 0)
5988	cInstances = pVertexDivisor[iVertexDivisor].s.count;
5989	else
5990	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
5991	}
5992	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
5993	{
5994	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
5995	}
5996	}
5997
5998	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
5999	if (pContext->pShaderContext)
6000	{
6001	uint32_t rtHeight = 0;
6002
6003	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6004	{
6005	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6006	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6007	}
6008
6009	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6010	}
6011
6012	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6013	iCurrentVertex = 0;
6014	while (iCurrentVertex < numVertexDecls)
6015	{
6016	uint32_t sidVertex = SVGA_ID_INVALID;
6017	uint32_t iVertex;
6018
6019	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6020	{
6021	if ( sidVertex != SVGA_ID_INVALID
6022	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6023	)
6024	break;
6025	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6026	}
6027
6028	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6029	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6030	AssertRCReturn(rc, rc);
6031
6032	iCurrentVertex = iVertex;
6033	}
6034
6035	/* Now draw the primitives. */
6036	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6037	{
6038	GLenum modeDraw;
6039	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6040	PVMSVGA3DSURFACE pIndexSurface = NULL;
6041	unsigned cVertices;
6042
6043	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6044	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6045	if (RT_FAILURE(rc))
6046	{
6047	AssertRC(rc);
6048	goto internal_error;
6049	}
6050
6051	if (sidIndex != SVGA3D_INVALID_ID)
6052	{
6053	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6054
6055	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6056	\|\| sidIndex >= pState->cSurfaces
6057	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6058	{
6059	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6060	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6061	rc = VERR_INVALID_PARAMETER;
6062	goto internal_error;
6063	}
6064	pIndexSurface = pState->papSurfaces[sidIndex];
6065	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6066
6067	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6068	{
6069	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6070	pContext = &pState->SharedCtx;
6071	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6072
6073	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6074	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6075
6076	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6077	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6078
6079	Assert(pIndexSurface->fDirty);
6080
6081	/** @todo rethink usage dynamic/static */
6082	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6083	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6084
6085	pIndexSurface->pMipmapLevels[0].fDirty = false;
6086	pIndexSurface->fDirty = false;
6087
6088	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6089
6090	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6092
6093	pContext = pState->papContexts[cid];
6094	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6095	}
6096	Assert(pIndexSurface->fDirty == false);
6097
6098	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6099	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6100	}
6101
6102	if (!pIndexSurface)
6103	{
6104	/* Render without an index buffer */
6105	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6106	if (cInstances == 0)
6107	{
6108	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6109	}
6110	else
6111	{
6112	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6113	}
6114	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6115	}
6116	else
6117	{
6118	GLenum indexType;
6119
6120	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6121	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6122
6123	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6124	{
6125	indexType = GL_UNSIGNED_BYTE;
6126	}
6127	else
6128	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6129	{
6130	indexType = GL_UNSIGNED_SHORT;
6131	}
6132	else
6133	{
6134	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6135	indexType = GL_UNSIGNED_INT;
6136	}
6137
6138	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));
6139	if (cInstances == 0)
6140	{
6141	/* Render with an index buffer */
6142	if (pRange[iPrimitive].indexBias == 0)
6143	glDrawElements(modeDraw,
6144	cVertices,
6145	indexType,
6146	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6147	else
6148	pState->ext.glDrawElementsBaseVertex(modeDraw,
6149	cVertices,
6150	indexType,
6151	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6152	pRange[iPrimitive].indexBias); /* basevertex */
6153	}
6154	else
6155	{
6156	/* Render with an index buffer */
6157	if (pRange[iPrimitive].indexBias == 0)
6158	pState->ext.glDrawElementsInstanced(modeDraw,
6159	cVertices,
6160	indexType,
6161	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6162	cInstances);
6163	else
6164	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6165	cVertices,
6166	indexType,
6167	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6168	cInstances,
6169	pRange[iPrimitive].indexBias); /* basevertex */
6170	}
6171	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6172
6173	/* Unbind the index buffer after usage. */
6174	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6175	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6176	}
6177	}
6178
6179	internal_error:
6180
6181	/* Deactivate the vertex declarations. */
6182	iCurrentVertex = 0;
6183	while (iCurrentVertex < numVertexDecls)
6184	{
6185	uint32_t sidVertex = SVGA_ID_INVALID;
6186	uint32_t iVertex;
6187
6188	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6189	{
6190	if ( sidVertex != SVGA_ID_INVALID
6191	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6192	)
6193	break;
6194	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6195	}
6196
6197	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6198	AssertRCReturn(rc, rc);
6199
6200	iCurrentVertex = iVertex;
6201	}
6202	#ifdef DEBUG
6203	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6204	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6205	{
6206	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6207	{
6208	PVMSVGA3DSURFACE pTexture;
6209	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6210	AssertContinue(RT_SUCCESS(rc2));
6211
6212	GLint activeTextureUnit = 0;
6213	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6214	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6215
6216	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6217	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6218
6219	GLint activeTexture = 0;
6220	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6221	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6222
6223	pState->ext.glActiveTexture(activeTextureUnit);
6224	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6225
6226	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6227	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6228	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6229	}
6230	}
6231	#endif
6232
6233	#if 0
6234	/* Dump render target to a bitmap. */
6235	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6236	{
6237	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6238	PVMSVGA3DSURFACE pSurface;
6239	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6240	if (RT_SUCCESS(rc2))
6241	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6242	}
6243	#endif
6244
6245	return rc;
6246	}
6247
6248
6249	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6250	{
6251	PVMSVGA3DCONTEXT pContext;
6252	PVMSVGA3DSHADER pShader;
6253	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6254	AssertReturn(pState, VERR_NO_MEMORY);
6255	int rc;
6256
6257	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6258	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6259
6260	if ( cid >= pState->cContexts
6261	\|\| pState->papContexts[cid]->id != cid)
6262	{
6263	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6264	return VERR_INVALID_PARAMETER;
6265	}
6266	pContext = pState->papContexts[cid];
6267	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6268
6269	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6270	if (type == SVGA3D_SHADERTYPE_VS)
6271	{
6272	if (shid >= pContext->cVertexShaders)
6273	{
6274	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6275	AssertReturn(pvNew, VERR_NO_MEMORY);
6276	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6277	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6278	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6279	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6280	pContext->cVertexShaders = shid + 1;
6281	}
6282	/* If one already exists with this id, then destroy it now. */
6283	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6284	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6285
6286	pShader = &pContext->paVertexShader[shid];
6287	}
6288	else
6289	{
6290	Assert(type == SVGA3D_SHADERTYPE_PS);
6291	if (shid >= pContext->cPixelShaders)
6292	{
6293	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6294	AssertReturn(pvNew, VERR_NO_MEMORY);
6295	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6296	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6297	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6298	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6299	pContext->cPixelShaders = shid + 1;
6300	}
6301	/* If one already exists with this id, then destroy it now. */
6302	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6303	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6304
6305	pShader = &pContext->paPixelShader[shid];
6306	}
6307
6308	memset(pShader, 0, sizeof(*pShader));
6309	pShader->id = shid;
6310	pShader->cid = cid;
6311	pShader->type = type;
6312	pShader->cbData = cbData;
6313	pShader->pShaderProgram = RTMemAllocZ(cbData);
6314	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6315	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6316
6317	#ifdef DUMP_SHADER_DISASSEMBLY
6318	LPD3DXBUFFER pDisassembly;
6319	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6320	if (hr == D3D_OK)
6321	{
6322	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6323	pDisassembly->Release();
6324	}
6325	#endif
6326
6327	switch (type)
6328	{
6329	case SVGA3D_SHADERTYPE_VS:
6330	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6331	break;
6332
6333	case SVGA3D_SHADERTYPE_PS:
6334	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6335	break;
6336
6337	default:
6338	AssertFailedReturn(VERR_INVALID_PARAMETER);
6339	}
6340	if (rc != VINF_SUCCESS)
6341	{
6342	RTMemFree(pShader->pShaderProgram);
6343	memset(pShader, 0, sizeof(*pShader));
6344	pShader->id = SVGA3D_INVALID_ID;
6345	}
6346
6347	return rc;
6348	}
6349
6350	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6351	{
6352	PVMSVGA3DCONTEXT pContext;
6353	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6354	AssertReturn(pState, VERR_NO_MEMORY);
6355	PVMSVGA3DSHADER pShader = NULL;
6356	int rc;
6357
6358	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6359
6360	if ( cid >= pState->cContexts
6361	\|\| pState->papContexts[cid]->id != cid)
6362	{
6363	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6364	return VERR_INVALID_PARAMETER;
6365	}
6366	pContext = pState->papContexts[cid];
6367	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6368
6369	if (type == SVGA3D_SHADERTYPE_VS)
6370	{
6371	if ( shid < pContext->cVertexShaders
6372	&& pContext->paVertexShader[shid].id == shid)
6373	{
6374	pShader = &pContext->paVertexShader[shid];
6375	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6376	AssertRC(rc);
6377	}
6378	}
6379	else
6380	{
6381	Assert(type == SVGA3D_SHADERTYPE_PS);
6382	if ( shid < pContext->cPixelShaders
6383	&& pContext->paPixelShader[shid].id == shid)
6384	{
6385	pShader = &pContext->paPixelShader[shid];
6386	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6387	AssertRC(rc);
6388	}
6389	}
6390
6391	if (pShader)
6392	{
6393	if (pShader->pShaderProgram)
6394	RTMemFree(pShader->pShaderProgram);
6395	memset(pShader, 0, sizeof(*pShader));
6396	pShader->id = SVGA3D_INVALID_ID;
6397	}
6398	else
6399	AssertFailedReturn(VERR_INVALID_PARAMETER);
6400
6401	return VINF_SUCCESS;
6402	}
6403
6404	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6405	{
6406	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6407	AssertReturn(pState, VERR_NO_MEMORY);
6408	int rc;
6409
6410	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6411
6412	if ( !pContext
6413	&& cid < pState->cContexts
6414	&& pState->papContexts[cid]->id == cid)
6415	pContext = pState->papContexts[cid];
6416	else if (!pContext)
6417	{
6418	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6419	Log(("vmsvga3dShaderSet invalid context id!\n"));
6420	return VERR_INVALID_PARAMETER;
6421	}
6422	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6423
6424	if (type == SVGA3D_SHADERTYPE_VS)
6425	{
6426	/* Save for vm state save/restore. */
6427	pContext->state.shidVertex = shid;
6428	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6429
6430	if ( shid < pContext->cVertexShaders
6431	&& pContext->paVertexShader[shid].id == shid)
6432	{
6433	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6434	Assert(type == pShader->type);
6435
6436	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6437	AssertRCReturn(rc, rc);
6438	}
6439	else
6440	if (shid == SVGA_ID_INVALID)
6441	{
6442	/* Unselect shader. */
6443	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6444	AssertRCReturn(rc, rc);
6445	}
6446	else
6447	AssertFailedReturn(VERR_INVALID_PARAMETER);
6448	}
6449	else
6450	{
6451	/* Save for vm state save/restore. */
6452	pContext->state.shidPixel = shid;
6453	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6454
6455	Assert(type == SVGA3D_SHADERTYPE_PS);
6456	if ( shid < pContext->cPixelShaders
6457	&& pContext->paPixelShader[shid].id == shid)
6458	{
6459	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6460	Assert(type == pShader->type);
6461
6462	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6463	AssertRCReturn(rc, rc);
6464	}
6465	else
6466	if (shid == SVGA_ID_INVALID)
6467	{
6468	/* Unselect shader. */
6469	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6470	AssertRCReturn(rc, rc);
6471	}
6472	else
6473	AssertFailedReturn(VERR_INVALID_PARAMETER);
6474	}
6475
6476	return VINF_SUCCESS;
6477	}
6478
6479	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6480	{
6481	PVMSVGA3DCONTEXT pContext;
6482	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6483	AssertReturn(pState, VERR_NO_MEMORY);
6484	int rc;
6485
6486	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6487
6488	if ( cid >= pState->cContexts
6489	\|\| pState->papContexts[cid]->id != cid)
6490	{
6491	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6492	return VERR_INVALID_PARAMETER;
6493	}
6494	pContext = pState->papContexts[cid];
6495	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6496
6497	for (uint32_t i = 0; i < cRegisters; i++)
6498	{
6499	#ifdef LOG_ENABLED
6500	switch (ctype)
6501	{
6502	case SVGA3D_CONST_TYPE_FLOAT:
6503	{
6504	float pValuesF = (float )pValues;
6505	Log(("ConstantF %d: value=%d, %d, %d, %d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0f), (int)(pValuesF[i4 + 1] 100.0f), (int)(pValuesF[i4 + 2] 100.0f), (int)(pValuesF[i4 + 3] 100.0f)));
6506	break;
6507	}
6508
6509	case SVGA3D_CONST_TYPE_INT:
6510	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6511	break;
6512
6513	case SVGA3D_CONST_TYPE_BOOL:
6514	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6515	break;
6516	}
6517	#endif
6518	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6519	}
6520
6521	switch (type)
6522	{
6523	case SVGA3D_SHADERTYPE_VS:
6524	switch (ctype)
6525	{
6526	case SVGA3D_CONST_TYPE_FLOAT:
6527	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6528	break;
6529
6530	case SVGA3D_CONST_TYPE_INT:
6531	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6532	break;
6533
6534	case SVGA3D_CONST_TYPE_BOOL:
6535	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6536	break;
6537
6538	default:
6539	AssertFailedReturn(VERR_INVALID_PARAMETER);
6540	}
6541	AssertRCReturn(rc, rc);
6542	break;
6543
6544	case SVGA3D_SHADERTYPE_PS:
6545	switch (ctype)
6546	{
6547	case SVGA3D_CONST_TYPE_FLOAT:
6548	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6549	break;
6550
6551	case SVGA3D_CONST_TYPE_INT:
6552	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6553	break;
6554
6555	case SVGA3D_CONST_TYPE_BOOL:
6556	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6557	break;
6558
6559	default:
6560	AssertFailedReturn(VERR_INVALID_PARAMETER);
6561	}
6562	AssertRCReturn(rc, rc);
6563	break;
6564
6565	default:
6566	AssertFailedReturn(VERR_INVALID_PARAMETER);
6567	}
6568
6569	return VINF_SUCCESS;
6570	}
6571
6572	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6573	{
6574	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6575	GLuint idQuery = 0;
6576	pState->ext.glGenQueries(1, &idQuery);
6577	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6578	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6579	pContext->occlusion.idQuery = idQuery;
6580	return VINF_SUCCESS;
6581	}
6582
6583	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6584	{
6585	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6586	if (pContext->occlusion.idQuery)
6587	{
6588	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6589	}
6590	return VINF_SUCCESS;
6591	}
6592
6593	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6594	{
6595	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6596	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6597	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6598	return VINF_SUCCESS;
6599	}
6600
6601	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6602	{
6603	RT_NOREF(pContext);
6604	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6605	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6606	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6607	return VINF_SUCCESS;
6608	}
6609
6610	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6611	{
6612	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6613	GLuint pixels = 0;
6614	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6616
6617	*pu32Pixels = (uint32_t)pixels;
6618	return VINF_SUCCESS;
6619	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 76269

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