DevVGA-SVGA3d-ogl.cpp@ 73736

Last change on this file since 73736 was 73736, checked in by vboxsync, 6 years ago
DevVGA-SVGA: simplified creation of per context device windows; implement SVGA_3D_CMD_PRESENT using SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN.
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 73736 2018-08-17 13:51:09Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS MyWinGetProcAddress
68	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
69	{
70	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
71	PROC p = wglGetProcAddress(pszSymbol);
72	if (RT_VALID_PTR(p))
73	return p;
74	return 0;
75	}
76	#elif defined(RT_OS_DARWIN)
77	# include <dlfcn.h>
78	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
79	/** Resolves an OpenGL symbol. */
80	static void MyNSGLGetProcAddress(const char pszSymbol)
81	{
82	/* Another copy in shaderapi.c. */
83	static void *s_pvImage = NULL;
84	if (s_pvImage == NULL)
85	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
86	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
87	}
88
89	#else
90	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
91	#endif
92
93	/* Invert y-coordinate for OpenGL's bottom left origin. */
94	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
95	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
96
97	/* Enable to render the result of DrawPrimitive in a seperate window. */
98	//#define DEBUG_GFX_WINDOW
99
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	AssertCompile(GL_TRUE == 1);
589	AssertCompile(GL_FALSE == 0);
590
591	/*
592	* Load and resolve imports from the external shared libraries.
593	*/
594	RTERRINFOSTATIC ErrInfo;
595	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
596	if (RT_FAILURE(rc))
597	{
598	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
599	return rc;
600	}
601	#ifdef RT_OS_DARWIN
602	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
603	if (RT_FAILURE(rc))
604	{
605	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
606	return rc;
607	}
608	#endif
609
610	/*
611	* Allocate the state.
612	*/
613	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
614	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
615
616	#ifdef RT_OS_WINDOWS
617	/* Create event semaphore and async IO thread. */
618	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
619	rc = RTSemEventCreate(&pState->WndRequestSem);
620	if (RT_SUCCESS(rc))
621	{
622	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
623	"VMSVGA3DWND");
624	if (RT_SUCCESS(rc))
625	return VINF_SUCCESS;
626
627	/* bail out. */
628	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
629	RTSemEventDestroy(pState->WndRequestSem);
630	}
631	else
632	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
633	RTMemFree(pThis->svga.p3dState);
634	pThis->svga.p3dState = NULL;
635	return rc;
636	#else
637	return VINF_SUCCESS;
638	#endif
639	}
640
641	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
642	{
643	/* A strict approach to get a proc address as recommended by Khronos:
644	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
645	* - "If the function is an extension, we need to check to see if the extension is supported."
646	*/
647
648	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
649	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
650	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
651	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
652	} while(0)
653
654	/* Get an optional function address. LogRel on failure. */
655	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
656	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
657	if (!pState->ext.ProcName) \
658	{ \
659	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
660	AssertFailed(); \
661	} \
662	} while(0)
663
664	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
665	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
666	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
667	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
668	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
669	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
670	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
671	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
672	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
673	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
674	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
675	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
676	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
677	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
678	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
679	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
680	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
681	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
682	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
683	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
684	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
685	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
686	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
687	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
688	/* glGetProgramivARB determines implementation limits for the program
689	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
690	* It differs from glGetProgramiv, which returns a parameter from a program object.
691	*/
692	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
693	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
694	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
695	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
696	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
697	#endif
698	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
699	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
700	#endif
701
702	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
703	if ( pState->rsGLVersion >= 3.0f
704	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
705	{
706	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
707	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
708	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
709	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
710	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
711	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
712	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
713	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
714	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
715	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
716	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
717	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
718	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
719	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
720	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
721	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
722	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
723	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
724	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
725	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
726	}
727
728	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
729	if (pState->rsGLVersion >= 3.1f)
730	{
731	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
732	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
733	}
734	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
735	{
736	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
737	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
738	}
739	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
740	{
741	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
742	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
743	}
744
745	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
746	if ( pState->rsGLVersion >= 3.2f
747	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
748	{
749	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
750	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
751	}
752
753	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
754	if ( pState->rsGLVersion >= 3.2f
755	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
756	{
757	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
758	}
759
760	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
761	if (pState->rsGLVersion >= 3.3f)
762	{
763	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
764	}
765	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
766	{
767	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
768	}
769
770	#undef GLGETPROCOPT_
771	#undef GLGETPROC_
772
773	return VINF_SUCCESS;
774	}
775
776
777	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
778	int vmsvga3dPowerOn(PVGASTATE pThis)
779	{
780	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
781	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
782	PVMSVGA3DCONTEXT pContext;
783	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
784	PVMSVGA3DCONTEXT pOtherCtx;
785	#endif
786	int rc;
787
788	if (pState->rsGLVersion != 0.0)
789	return VINF_SUCCESS; /* already initialized (load state) */
790
791	/*
792	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
793	*/
794	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
795	AssertRCReturn(rc, rc);
796
797	pContext = pState->papContexts[1];
798	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
799
800	LogRel(("VMSVGA3d: OpenGL version: %s\n"
801	"VMSVGA3d: OpenGL Vendor: %s\n"
802	"VMSVGA3d: OpenGL Renderer: %s\n"
803	"VMSVGA3d: OpenGL shader language version: %s\n",
804	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
805	glGetString(GL_SHADING_LANGUAGE_VERSION)));
806
807	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
808	AssertRCReturn(rc, rc);
809	vmsvga3dLogRelExtensions("", pState->pszExtensions);
810
811	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
812
813
814	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
815	/*
816	* Get the extension list for the alternative profile so we can better
817	* figure out the shader model and stuff.
818	*/
819	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
820	AssertLogRelRCReturn(rc, rc);
821	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
822
823	pOtherCtx = pState->papContexts[2];
824	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
825
826	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
827	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
828	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
829	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
830	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
831	glGetString(GL_SHADING_LANGUAGE_VERSION)));
832
833	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
834	AssertRCReturn(rc, rc);
835	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
836
837	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
838
839	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
840	#else
841	pState->pszOtherExtensions = (char *)"";
842	pState->rsOtherGLVersion = pState->rsGLVersion;
843	#endif
844
845	/*
846	* Resolve GL function pointers and store them in pState->ext.
847	*/
848	rc = vmsvga3dLoadGLFunctions(pState);
849	if (RT_FAILURE(rc))
850	{
851	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
852	return rc;
853	}
854
855	/*
856	* Initialize the capabilities with sensible defaults.
857	*/
858	pState->caps.maxActiveLights = 1;
859	pState->caps.maxTextureBufferSize = 65536;
860	pState->caps.maxTextures = 1;
861	pState->caps.maxClipDistances = 4;
862	pState->caps.maxColorAttachments = 1;
863	pState->caps.maxRectangleTextureSize = 2048;
864	pState->caps.maxTextureAnisotropy = 2;
865	pState->caps.maxVertexShaderInstructions = 1024;
866	pState->caps.maxFragmentShaderInstructions = 1024;
867	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
868	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
869	pState->caps.flPointSize[0] = 1;
870	pState->caps.flPointSize[1] = 1;
871
872	/*
873	* Query capabilities
874	*/
875	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
876	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
877	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
878	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
879	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
880	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
881	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
882	#else
883	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
884	#endif
885	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
886	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
887	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
888	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
889
890	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
891	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
892	&pState->caps.maxFragmentShaderTemps));
893	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
894	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
895	&pState->caps.maxFragmentShaderInstructions));
896	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
897	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
898	&pState->caps.maxVertexShaderTemps));
899	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
900	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
901	&pState->caps.maxVertexShaderInstructions));
902
903	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
904
905	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
906	* ARB Assembly Language
907	* These are done through testing the presence of extensions. You should test them in this order:
908	* GL_NV_gpu_program4: SM 4.0 or better.
909	* GL_NV_vertex_program3: SM 3.0 or better.
910	* GL_ARB_fragment_program: SM 2.0 or better.
911	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
912	*
913	*/
914	/** @todo distinguish between vertex and pixel shaders??? */
915	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
916	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
917	if (v >= 3.30f)
918	{
919	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
920	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
921	}
922	else
923	if (v >= 1.20f)
924	{
925	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
926	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
927	}
928	else
929	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
930	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
931	{
932	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
933	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
934	}
935	else
936	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
937	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
938	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
939	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
940	)
941	{
942	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
943	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
944	}
945	else
946	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
947	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
948	{
949	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
950	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
951	}
952	else
953	{
954	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
955	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
956	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
957	}
958
959	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
960	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
961	{
962	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
963	}
964
965	/*
966	* Tweak capabilities.
967	*/
968	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
969	if ( pState->caps.maxVertexShaderTemps < 32
970	&& vmsvga3dIsVendorIntel())
971	pState->caps.maxVertexShaderTemps = 32;
972
973	#if 0
974	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
975	SVGA3D_DEVCAP_QUERY_TYPES = 15,
976	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
977	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
978	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
979	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
980	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
981	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
982	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
983	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
984	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
985	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
986	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
987	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
988	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
989	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
990	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
991	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
992	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
993	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
994	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
995	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
996	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
997	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
998	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
999	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1000	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1001	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1002	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1003	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1004	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1005	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1006	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1007	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1008	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1009	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1010	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1011	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1012	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1013	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1014	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1015	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1016	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1017	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1018	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1019	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1020	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1021	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1022	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1023	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1024	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1025	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1026	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1027	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1028	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1029	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1030	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1031	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1032	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1033	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1034	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1035	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
1036	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
1037	#endif
1038
1039	LogRel(("VMSVGA3d: Capabilities:\n"));
1040	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
1041	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
1042	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1043	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1044	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1045	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1046	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1047	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1048	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1049	pState->caps.maxFragmentShaderTemps,
1050	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1051	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1052	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
1053	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
1054
1055
1056	/* Initialize the shader library. */
1057	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1058	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1059	rc = ShaderInitLib(&pState->ShaderIf);
1060	AssertRC(rc);
1061
1062	/* Cleanup */
1063	rc = vmsvga3dContextDestroy(pThis, 1);
1064	AssertRC(rc);
1065	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1066	rc = vmsvga3dContextDestroy(pThis, 2);
1067	AssertRC(rc);
1068	#endif
1069
1070	if ( pState->rsGLVersion < 3.0
1071	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1072	{
1073	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1074	return VERR_NOT_IMPLEMENTED;
1075	}
1076
1077	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1078	pState->idTestContext = SVGA_ID_INVALID;
1079	#endif
1080	return VINF_SUCCESS;
1081	}
1082
1083	int vmsvga3dReset(PVGASTATE pThis)
1084	{
1085	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1086	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1087
1088	/* Destroy all leftover surfaces. */
1089	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1090	{
1091	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1092	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1093	}
1094
1095	/* Destroy all leftover contexts. */
1096	for (uint32_t i = 0; i < pState->cContexts; i++)
1097	{
1098	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1099	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1100	}
1101
1102	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1103	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1104
1105	return VINF_SUCCESS;
1106	}
1107
1108	int vmsvga3dTerminate(PVGASTATE pThis)
1109	{
1110	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1111	AssertReturn(pState, VERR_WRONG_ORDER);
1112	int rc;
1113
1114	rc = vmsvga3dReset(pThis);
1115	AssertRCReturn(rc, rc);
1116
1117	/* Terminate the shader library. */
1118	rc = ShaderDestroyLib();
1119	AssertRC(rc);
1120
1121	#ifdef RT_OS_WINDOWS
1122	/* Terminate the window creation thread. */
1123	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1124	AssertRCReturn(rc, rc);
1125
1126	RTSemEventDestroy(pState->WndRequestSem);
1127	#elif defined(RT_OS_DARWIN)
1128
1129	#elif defined(RT_OS_LINUX)
1130	/* signal to the thread that it is supposed to exit */
1131	pState->bTerminate = true;
1132	/* wait for it to terminate */
1133	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1134	AssertRC(rc);
1135	XCloseDisplay(pState->display);
1136	#endif
1137
1138	RTStrFree(pState->pszExtensions);
1139	pState->pszExtensions = NULL;
1140	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1141	RTStrFree(pState->pszOtherExtensions);
1142	#endif
1143	pState->pszOtherExtensions = NULL;
1144
1145	return VINF_SUCCESS;
1146	}
1147
1148
1149	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1150	{
1151	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1152	* redraw it. */
1153
1154	#ifdef RT_OS_DARWIN
1155	RT_NOREF(pOldViewport);
1156	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1157	if ( pState
1158	&& idScreen == 0
1159	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1160	{
1161	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1162	}
1163	#else
1164	RT_NOREF(pThis, idScreen, pOldViewport);
1165	#endif
1166	}
1167
1168
1169	/**
1170	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1171	* given surface format capability.
1172	*
1173	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1174	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1175	*
1176	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1177	* of implicit guest expectations:
1178	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1179	*/
1180	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1181	{
1182	uint32_t result = 0;
1183
1184	/** @todo missing:
1185	*
1186	* SVGA3DFORMAT_OP_PIXELSIZE
1187	*/
1188
1189	switch (idx3dCaps)
1190	{
1191	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1192	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1193	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1194	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1195	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1196	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1197	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1198	break;
1199
1200	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1201	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1202	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1203	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1204	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1205	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1206	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1207	break;
1208	}
1209
1210	/** @todo check hardware caps! */
1211	switch (idx3dCaps)
1212	{
1213	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1214	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1215	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1216	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1217	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1218	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1219	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1220	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1221	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1222	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1223	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1224	result \|= SVGA3DFORMAT_OP_TEXTURE
1225	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1226	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1227	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1228	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1229	\| SVGA3DFORMAT_OP_CUBETEXTURE
1230	\| SVGA3DFORMAT_OP_SRGBREAD
1231	\| SVGA3DFORMAT_OP_SRGBWRITE;
1232	break;
1233
1234	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1235	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1236	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1237	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1238	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1239	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1240	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1241	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1242	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1243	break;
1244
1245	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1246	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1247	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1248	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1249	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1250	result \|= SVGA3DFORMAT_OP_TEXTURE
1251	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1252	\| SVGA3DFORMAT_OP_CUBETEXTURE
1253	\| SVGA3DFORMAT_OP_SRGBREAD;
1254	break;
1255
1256	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1257	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1258	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1259	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1260	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1261	break;
1262
1263	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1264	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1265	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1266	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1267	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1268	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1269	result \|= SVGA3DFORMAT_OP_TEXTURE
1270	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1271	\| SVGA3DFORMAT_OP_CUBETEXTURE
1272	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1273	break;
1274
1275	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1276	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1277	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1278	result \|= SVGA3DFORMAT_OP_TEXTURE
1279	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1280	\| SVGA3DFORMAT_OP_CUBETEXTURE
1281	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1282	break;
1283
1284	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1285	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1286	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1287	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1288	break;
1289	}
1290	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1291
1292	return result;
1293	}
1294
1295	#if 0 /* unused */
1296	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1297	{
1298	RT_NOREF(pState3D, idx3dCaps);
1299
1300	/** @todo test this somehow */
1301	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1302
1303	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1304	return result;
1305	}
1306	#endif
1307
1308
1309	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1310	{
1311	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1312	AssertReturn(pState, VERR_NO_MEMORY);
1313	int rc = VINF_SUCCESS;
1314
1315	*pu32Val = 0;
1316
1317	/*
1318	* The capabilities access by current (2015-03-01) linux sources (gallium,
1319	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1320	* aren't access.
1321	*/
1322
1323	switch (idx3dCaps)
1324	{
1325	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1326	case SVGA3D_DEVCAP_3D:
1327	pu32Val = 1; / boolean? */
1328	break;
1329
1330	case SVGA3D_DEVCAP_MAX_LIGHTS:
1331	*pu32Val = pState->caps.maxActiveLights;
1332	break;
1333
1334	case SVGA3D_DEVCAP_MAX_TEXTURES:
1335	*pu32Val = pState->caps.maxTextures;
1336	break;
1337
1338	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1339	*pu32Val = pState->caps.maxClipDistances;
1340	break;
1341
1342	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1343	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1344	*pu32Val = pState->caps.vertexShaderVersion;
1345	break;
1346
1347	case SVGA3D_DEVCAP_VERTEX_SHADER:
1348	/* boolean? */
1349	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1350	break;
1351
1352	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1353	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1354	*pu32Val = pState->caps.fragmentShaderVersion;
1355	break;
1356
1357	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1358	/* boolean? */
1359	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1360	break;
1361
1362	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1363	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1364	/* Must be obsolete by now; surface format caps specify the same thing. */
1365	rc = VERR_INVALID_PARAMETER;
1366	break;
1367
1368	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1369	break;
1370
1371	/*
1372	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1373	* return TRUE. Even on physical hardware that does not support
1374	* these formats natively, the SVGA3D device will provide an emulation
1375	* which should be invisible to the guest OS.
1376	*/
1377	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1378	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1379	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1380	*pu32Val = 1;
1381	break;
1382
1383	case SVGA3D_DEVCAP_QUERY_TYPES:
1384	break;
1385
1386	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1387	break;
1388
1389	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1390	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1391	AssertCompile(sizeof(uint32_t) == sizeof(float));
1392	(float )pu32Val = pState->caps.flPointSize[1];
1393	break;
1394
1395	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1396	/** @todo ?? */
1397	rc = VERR_INVALID_PARAMETER;
1398	break;
1399
1400	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1401	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1402	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1403	*pu32Val = pState->caps.maxRectangleTextureSize;
1404	break;
1405
1406	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1407	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1408	//*pu32Val = pCaps->MaxVolumeExtent;
1409	*pu32Val = 256;
1410	break;
1411
1412	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1413	pu32Val = 32768; / hardcoded in Wine */
1414	break;
1415
1416	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1417	//*pu32Val = pCaps->MaxTextureAspectRatio;
1418	break;
1419
1420	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1421	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1422	*pu32Val = pState->caps.maxTextureAnisotropy;
1423	break;
1424
1425	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1426	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1427	pu32Val = 0xFFFFF; / hardcoded in Wine */
1428	break;
1429
1430	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1431	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1432	*pu32Val = pState->caps.maxVertexShaderInstructions;
1433	break;
1434
1435	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1436	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1437	break;
1438
1439	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1440	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1441	*pu32Val = pState->caps.maxVertexShaderTemps;
1442	break;
1443
1444	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1445	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1446	*pu32Val = pState->caps.maxFragmentShaderTemps;
1447	break;
1448
1449	case SVGA3D_DEVCAP_TEXTURE_OPS:
1450	break;
1451
1452	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1453	break;
1454
1455	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1456	break;
1457
1458	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1459	break;
1460
1461	case SVGA3D_DEVCAP_SUPERSAMPLE:
1462	break;
1463
1464	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1465	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1466	break;
1467
1468	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1469	break;
1470
1471	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1472	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1473	*pu32Val = pState->caps.maxColorAttachments;
1474	break;
1475
1476	/*
1477	* This is the maximum number of SVGA context IDs that the guest
1478	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1479	*/
1480	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1481	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1482	break;
1483
1484	/*
1485	* This is the maximum number of SVGA surface IDs that the guest
1486	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1487	*/
1488	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1489	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1490	break;
1491
1492	#if 0 /* Appeared more recently, not yet implemented. */
1493	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1494	case SVGA3D_DEVCAP_LINE_AA:
1495	break;
1496	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1497	case SVGA3D_DEVCAP_LINE_STIPPLE:
1498	break;
1499	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1500	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1501	break;
1502	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1503	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1504	break;
1505	#endif
1506
1507	/*
1508	* Supported surface formats.
1509	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1510	*/
1511	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1512	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1513	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1514	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1515	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1516	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1517	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1518	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1519	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1520	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1521	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1522	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1523	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1524	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1525	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1526	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1527	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1528	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1529	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1530	break;
1531
1532	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1533	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1534	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1535	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1536	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1537	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1538	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1539	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1540	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1541	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1542	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1543	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1544	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1545	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1546	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1547	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1548	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1549	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1550	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1551	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1552	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1553	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1554	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1555	break;
1556
1557	/* Linux: Not referenced in current sources. */
1558	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1559	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1560	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1561	rc = VERR_INVALID_PARAMETER;
1562	*pu32Val = 0;
1563	break;
1564
1565	default:
1566	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1567	rc = VERR_INVALID_PARAMETER;
1568	break;
1569	}
1570
1571	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1572	return rc;
1573	}
1574
1575	/**
1576	* Convert SVGA format value to its OpenGL equivalent
1577	*
1578	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1579	* help from wined3dformat_from_d3dformat().
1580	*/
1581	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1582	{
1583	switch (format)
1584	{
1585	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1586	pSurface->internalFormatGL = GL_RGB8;
1587	pSurface->formatGL = GL_BGRA;
1588	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1589	break;
1590	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1591	pSurface->internalFormatGL = GL_RGBA8;
1592	pSurface->formatGL = GL_BGRA;
1593	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1594	break;
1595	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1596	pSurface->internalFormatGL = GL_RGB5;
1597	pSurface->formatGL = GL_RGB;
1598	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1599	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1600	break;
1601	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1602	pSurface->internalFormatGL = GL_RGB5;
1603	pSurface->formatGL = GL_BGRA;
1604	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1605	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1606	break;
1607	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1608	pSurface->internalFormatGL = GL_RGB5_A1;
1609	pSurface->formatGL = GL_BGRA;
1610	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1611	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1612	break;
1613	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1614	pSurface->internalFormatGL = GL_RGBA4;
1615	pSurface->formatGL = GL_BGRA;
1616	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1617	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1618	break;
1619
1620	case SVGA3D_R8G8B8A8_UNORM:
1621	pSurface->internalFormatGL = GL_RGBA8;
1622	pSurface->formatGL = GL_RGBA;
1623	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1624	break;
1625
1626	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1627	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1628	pSurface->formatGL = GL_DEPTH_COMPONENT;
1629	pSurface->typeGL = GL_UNSIGNED_INT;
1630	break;
1631	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1632	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1633	pSurface->formatGL = GL_DEPTH_COMPONENT;
1634	pSurface->typeGL = GL_UNSIGNED_SHORT;
1635	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1636	break;
1637	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1638	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1639	pSurface->formatGL = GL_DEPTH_STENCIL;
1640	pSurface->typeGL = GL_UNSIGNED_INT;
1641	break;
1642	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1643	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1644	pSurface->formatGL = GL_DEPTH_STENCIL;
1645	pSurface->typeGL = GL_UNSIGNED_SHORT;
1646	/** @todo Wine sources hints at no hw support for this, so test this one! */
1647	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1648	break;
1649	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1650	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1651	pSurface->formatGL = GL_DEPTH_COMPONENT;
1652	pSurface->typeGL = GL_UNSIGNED_INT;
1653	break;
1654
1655	/* Advanced D3D9 depth formats. */
1656	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1657	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1658	pSurface->formatGL = GL_DEPTH_COMPONENT;
1659	pSurface->typeGL = GL_FLOAT;
1660	break;
1661
1662	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1663	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1664	pSurface->formatGL = GL_DEPTH_COMPONENT;
1665	pSurface->typeGL = GL_FLOAT; /* ??? */
1666	break;
1667
1668	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1669	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1670	pSurface->formatGL = GL_DEPTH_STENCIL;
1671	pSurface->typeGL = GL_INT; /* ??? */
1672	break;
1673
1674	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1675	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1676	pSurface->formatGL = GL_RGBA; /* not used */
1677	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1678	break;
1679
1680	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1681	/* "DXT2 and DXT3 are the same from an API perspective." */
1682	RT_FALL_THRU();
1683	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1684	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1685	pSurface->formatGL = GL_RGBA; /* not used */
1686	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1687	break;
1688
1689	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1690	/* "DXT4 and DXT5 are the same from an API perspective." */
1691	RT_FALL_THRU();
1692	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1693	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1694	pSurface->formatGL = GL_RGBA; /* not used */
1695	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1696	break;
1697
1698	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1699	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1700	pSurface->formatGL = GL_LUMINANCE;
1701	pSurface->typeGL = GL_UNSIGNED_BYTE;
1702	break;
1703
1704	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1705	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1706	pSurface->formatGL = GL_LUMINANCE;
1707	pSurface->typeGL = GL_UNSIGNED_SHORT;
1708	break;
1709
1710	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1711	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1712	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1713	pSurface->typeGL = GL_UNSIGNED_BYTE;
1714	break;
1715
1716	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1717	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1718	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1719	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1720	break;
1721
1722	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1723	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1724	pSurface->formatGL = GL_ALPHA;
1725	pSurface->typeGL = GL_UNSIGNED_BYTE;
1726	break;
1727
1728	#if 0
1729
1730	/* Bump-map formats */
1731	case SVGA3D_BUMPU8V8:
1732	return D3DFMT_V8U8;
1733	case SVGA3D_BUMPL6V5U5:
1734	return D3DFMT_L6V5U5;
1735	case SVGA3D_BUMPX8L8V8U8:
1736	return D3DFMT_X8L8V8U8;
1737	case SVGA3D_BUMPL8V8U8:
1738	/* No corresponding D3D9 equivalent. */
1739	AssertFailedReturn(D3DFMT_UNKNOWN);
1740	/* signed bump-map formats */
1741	case SVGA3D_V8U8:
1742	return D3DFMT_V8U8;
1743	case SVGA3D_Q8W8V8U8:
1744	return D3DFMT_Q8W8V8U8;
1745	case SVGA3D_CxV8U8:
1746	return D3DFMT_CxV8U8;
1747	/* mixed bump-map formats */
1748	case SVGA3D_X8L8V8U8:
1749	return D3DFMT_X8L8V8U8;
1750	case SVGA3D_A2W10V10U10:
1751	return D3DFMT_A2W10V10U10;
1752	#endif
1753
1754	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1755	pSurface->internalFormatGL = GL_RGBA16F;
1756	pSurface->formatGL = GL_RGBA;
1757	#if 0 /* bird: wine uses half float, sounds correct to me... */
1758	pSurface->typeGL = GL_FLOAT;
1759	#else
1760	pSurface->typeGL = GL_HALF_FLOAT;
1761	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1762	#endif
1763	break;
1764
1765	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1766	pSurface->internalFormatGL = GL_RGBA32F;
1767	pSurface->formatGL = GL_RGBA;
1768	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1769	break;
1770
1771	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1772	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1773	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1774	pSurface->formatGL = GL_RGBA;
1775	#else
1776	pSurface->formatGL = GL_BGRA;
1777	#endif
1778	pSurface->typeGL = GL_UNSIGNED_INT;
1779	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1780	break;
1781
1782
1783	/* Single- and dual-component floating point formats */
1784	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1785	pSurface->internalFormatGL = GL_R16F;
1786	pSurface->formatGL = GL_RED;
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	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1792	#endif
1793	break;
1794	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1795	pSurface->internalFormatGL = GL_R32F;
1796	pSurface->formatGL = GL_RED;
1797	pSurface->typeGL = GL_FLOAT;
1798	break;
1799	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1800	pSurface->internalFormatGL = GL_RG16F;
1801	pSurface->formatGL = GL_RG;
1802	#if 0 /* bird: wine uses half float, sounds correct to me... */
1803	pSurface->typeGL = GL_FLOAT;
1804	#else
1805	pSurface->typeGL = GL_HALF_FLOAT;
1806	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1807	#endif
1808	break;
1809	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1810	pSurface->internalFormatGL = GL_RG32F;
1811	pSurface->formatGL = GL_RG;
1812	pSurface->typeGL = GL_FLOAT;
1813	break;
1814
1815	/*
1816	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1817	* the most efficient format to use when creating new surfaces
1818	* expressly for index or vertex data.
1819	*/
1820	case SVGA3D_BUFFER:
1821	pSurface->internalFormatGL = -1;
1822	pSurface->formatGL = -1;
1823	pSurface->typeGL = -1;
1824	break;
1825
1826	#if 0
1827	return D3DFMT_UNKNOWN;
1828
1829	case SVGA3D_V16U16:
1830	return D3DFMT_V16U16;
1831	#endif
1832
1833	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1834	pSurface->internalFormatGL = GL_RG16;
1835	pSurface->formatGL = GL_RG;
1836	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1837	pSurface->typeGL = GL_UNSIGNED_INT;
1838	#else
1839	pSurface->typeGL = GL_UNSIGNED_SHORT;
1840	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1841	#endif
1842	break;
1843
1844	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1845	pSurface->internalFormatGL = GL_RGBA16;
1846	pSurface->formatGL = GL_RGBA;
1847	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1848	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1849	#else
1850	pSurface->typeGL = GL_UNSIGNED_SHORT;
1851	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1852	#endif
1853	break;
1854
1855	case SVGA3D_R8G8B8A8_SNORM:
1856	pSurface->internalFormatGL = GL_RGB8;
1857	pSurface->formatGL = GL_BGRA;
1858	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1859	AssertMsgFailed(("test me - SVGA3D_R8G8B8A8_SNORM\n"));
1860	break;
1861	case SVGA3D_R16G16_UNORM:
1862	pSurface->internalFormatGL = GL_RG16;
1863	pSurface->formatGL = GL_RG;
1864	pSurface->typeGL = GL_UNSIGNED_SHORT;
1865	AssertMsgFailed(("test me - SVGA3D_R16G16_UNORM\n"));
1866	break;
1867
1868	#if 0
1869	/* Packed Video formats */
1870	case SVGA3D_UYVY:
1871	return D3DFMT_UYVY;
1872	case SVGA3D_YUY2:
1873	return D3DFMT_YUY2;
1874
1875	/* Planar video formats */
1876	case SVGA3D_NV12:
1877	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1878
1879	/* Video format with alpha */
1880	case SVGA3D_AYUV:
1881	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1882
1883	case SVGA3D_BC4_UNORM:
1884	case SVGA3D_BC5_UNORM:
1885	/* Unknown; only in DX10 & 11 */
1886	break;
1887	#endif
1888	default:
1889	AssertMsgFailed(("Unsupported format %d\n", format));
1890	break;
1891	}
1892	}
1893
1894
1895	#if 0
1896	/**
1897	* Convert SVGA multi sample count value to its D3D equivalent
1898	*/
1899	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1900	{
1901	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1902	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1903
1904	if (multisampleCount > 16)
1905	return D3DMULTISAMPLE_NONE;
1906
1907	/** @todo exact same mapping as d3d? */
1908	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1909	}
1910	#endif
1911
1912	/**
1913	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1914	*
1915	* @param pState The VMSVGA3d state.
1916	* @param pSurface The surface being destroyed.
1917	*/
1918	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1919	{
1920	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1921	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1922
1923	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1924	{
1925	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1926	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1927	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1928	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1929	{
1930	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1931	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1932	}
1933	break;
1934
1935	case SVGA3D_SURFACE_CUBEMAP:
1936	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
1937	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1938	/* Cubemap is a texture. */
1939	case SVGA3D_SURFACE_HINT_TEXTURE:
1940	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1941	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1942	{
1943	glDeleteTextures(1, &pSurface->oglId.texture);
1944	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1945	}
1946	break;
1947
1948	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1949	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1950	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1951	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1952	{
1953	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1954	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1955	}
1956	break;
1957
1958	default:
1959	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1960	break;
1961	}
1962	}
1963
1964
1965	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1966	{
1967	for (uint32_t i = 0; i < cCopyBoxes; i++)
1968	{
1969	SVGA3dBox destBox, srcBox;
1970
1971	srcBox.x = pBox[i].srcx;
1972	srcBox.y = pBox[i].srcy;
1973	srcBox.z = pBox[i].srcz;
1974	srcBox.w = pBox[i].w;
1975	srcBox.h = pBox[i].h;
1976	srcBox.d = pBox[i].d;
1977
1978	destBox.x = pBox[i].x;
1979	destBox.y = pBox[i].y;
1980	destBox.z = pBox[i].z;
1981	destBox.w = pBox[i].w;
1982	destBox.h = pBox[i].h;
1983	destBox.d = pBox[i].d;
1984
1985	int rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1986	AssertRCReturn(rc, rc);
1987	}
1988	return VINF_SUCCESS;
1989	}
1990
1991
1992	/**
1993	* Save texture unpacking parameters and loads those appropriate for the given
1994	* surface.
1995	*
1996	* @param pState The VMSVGA3D state structure.
1997	* @param pContext The active context.
1998	* @param pSurface The surface.
1999	* @param pSave Where to save stuff.
2000	*/
2001	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2002	PVMSVGAPACKPARAMS pSave)
2003	{
2004	RT_NOREF(pState);
2005
2006	/*
2007	* Save (ignore errors, setting the defaults we want and avoids restore).
2008	*/
2009	pSave->iAlignment = 1;
2010	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2011	pSave->cxRow = 0;
2012	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2013
2014	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2015	pSave->cyImage = 0;
2016	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
2017	Assert(pSave->cyImage == 0);
2018
2019	pSave->fSwapBytes = GL_FALSE;
2020	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2021	Assert(pSave->fSwapBytes == GL_FALSE);
2022
2023	pSave->fLsbFirst = GL_FALSE;
2024	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2025	Assert(pSave->fLsbFirst == GL_FALSE);
2026
2027	pSave->cSkipRows = 0;
2028	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2029	Assert(pSave->cSkipRows == 0);
2030
2031	pSave->cSkipPixels = 0;
2032	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2033	Assert(pSave->cSkipPixels == 0);
2034
2035	pSave->cSkipImages = 0;
2036	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2037	Assert(pSave->cSkipImages == 0);
2038
2039	VMSVGA3D_CLEAR_GL_ERRORS();
2040	#endif
2041
2042	/*
2043	* Setup unpack.
2044	*
2045	* Note! We use 1 as alignment here because we currently don't do any
2046	* aligning of line pitches anywhere.
2047	*/
2048	NOREF(pSurface);
2049	if (pSave->iAlignment != 1)
2050	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2051	if (pSave->cxRow != 0)
2052	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2053	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2054	if (pSave->cyImage != 0)
2055	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2056	if (pSave->fSwapBytes != 0)
2057	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2058	if (pSave->fLsbFirst != 0)
2059	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2060	if (pSave->cSkipRows != 0)
2061	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2062	if (pSave->cSkipPixels != 0)
2063	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2064	if (pSave->cSkipImages != 0)
2065	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2066	#endif
2067	}
2068
2069
2070	/**
2071	* Restores texture unpacking parameters.
2072	*
2073	* @param pState The VMSVGA3D state structure.
2074	* @param pContext The active context.
2075	* @param pSurface The surface.
2076	* @param pSave Where stuff was saved.
2077	*/
2078	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2079	PCVMSVGAPACKPARAMS pSave)
2080	{
2081	RT_NOREF(pState, pSurface);
2082
2083	if (pSave->iAlignment != 1)
2084	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2085	if (pSave->cxRow != 0)
2086	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2087	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2088	if (pSave->cyImage != 0)
2089	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2090	if (pSave->fSwapBytes != 0)
2091	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2092	if (pSave->fLsbFirst != 0)
2093	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2094	if (pSave->cSkipRows != 0)
2095	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2096	if (pSave->cSkipPixels != 0)
2097	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2098	if (pSave->cSkipImages != 0)
2099	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2100	#endif
2101	}
2102
2103	/**
2104	* Create D3D/OpenGL texture object for the specified surface.
2105	*
2106	* Surfaces are created when needed.
2107	*
2108	* @param pState The VMSVGA3d state.
2109	* @param pContext The context.
2110	* @param idAssociatedContext Probably the same as pContext->id.
2111	* @param pSurface The surface to create the texture for.
2112	*/
2113	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2114	PVMSVGA3DSURFACE pSurface)
2115	{
2116	RT_NOREF(idAssociatedContext);
2117
2118	uint32_t const numMipLevels = pSurface->faces[0].numMipLevels;
2119
2120	/* Fugure out what kind of texture we are creating. */
2121	GLenum binding;
2122	GLenum target;
2123	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2124	{
2125	Assert(pSurface->cFaces == 6);
2126
2127	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2128	target = GL_TEXTURE_CUBE_MAP;
2129	}
2130	else
2131	{
2132	if (pSurface->pMipmapLevels[0].mipmapSize.depth > 1)
2133	{
2134	binding = GL_TEXTURE_BINDING_3D;
2135	target = GL_TEXTURE_3D;
2136	}
2137	else
2138	{
2139	Assert(pSurface->cFaces == 1);
2140
2141	binding = GL_TEXTURE_BINDING_2D;
2142	target = GL_TEXTURE_2D;
2143	}
2144	}
2145
2146	/* All textures are created in the SharedCtx. */
2147	uint32_t idPrevCtx = pState->idActiveContext;
2148	pContext = &pState->SharedCtx;
2149	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2150
2151	glGenTextures(1, &pSurface->oglId.texture);
2152	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2153
2154	GLint activeTexture = 0;
2155	glGetIntegerv(binding, &activeTexture);
2156	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2157
2158	/* Must bind texture to the current context in order to change it. */
2159	glBindTexture(target, pSurface->oglId.texture);
2160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2161
2162	/* Set the unpacking parameters. */
2163	VMSVGAPACKPARAMS SavedParams;
2164	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2165
2166	/** @todo Set the mip map generation filter settings. */
2167
2168	/* Set the mipmap base and max level parameters. */
2169	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2170	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2171	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels - 1);
2172	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2173
2174	if (pSurface->fDirty)
2175	LogFunc(("sync dirty texture\n"));
2176
2177	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2178	if (target == GL_TEXTURE_3D)
2179	{
2180	for (uint32_t i = 0; i < numMipLevels; ++i)
2181	{
2182	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2183	* exposing random host memory to the guest and helps a with the fedora 21 surface
2184	* corruption issues (launchpad, background, search field, login).
2185	*/
2186	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2187
2188	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2189	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2190
2191	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2192	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2193	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2194	{
2195	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2196	i,
2197	pSurface->internalFormatGL,
2198	pMipLevel->mipmapSize.width,
2199	pMipLevel->mipmapSize.height,
2200	pMipLevel->mipmapSize.depth,
2201	0,
2202	pMipLevel->cbSurface,
2203	pMipLevel->pSurfaceData);
2204	}
2205	else
2206	{
2207	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2208	i,
2209	pSurface->internalFormatGL,
2210	pMipLevel->mipmapSize.width,
2211	pMipLevel->mipmapSize.height,
2212	pMipLevel->mipmapSize.depth,
2213	0, /* border */
2214	pSurface->formatGL,
2215	pSurface->typeGL,
2216	pMipLevel->pSurfaceData);
2217	}
2218	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2219
2220	pMipLevel->fDirty = false;
2221	}
2222	}
2223	else if (target == GL_TEXTURE_CUBE_MAP)
2224	{
2225	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2226	{
2227	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2228
2229	for (uint32_t i = 0; i < numMipLevels; ++i)
2230	{
2231	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[iFace * numMipLevels + i];
2232	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2233	Assert(pMipLevel->mipmapSize.depth == 1);
2234
2235	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2236	iFace, i, pMipLevel->fDirty));
2237
2238	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2239	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2240	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2241	{
2242	pState->ext.glCompressedTexImage2D(Face,
2243	i,
2244	pSurface->internalFormatGL,
2245	pMipLevel->mipmapSize.width,
2246	pMipLevel->mipmapSize.height,
2247	0,
2248	pMipLevel->cbSurface,
2249	pMipLevel->pSurfaceData);
2250	}
2251	else
2252	{
2253	glTexImage2D(Face,
2254	i,
2255	pSurface->internalFormatGL,
2256	pMipLevel->mipmapSize.width,
2257	pMipLevel->mipmapSize.height,
2258	0,
2259	pSurface->formatGL,
2260	pSurface->typeGL,
2261	pMipLevel->pSurfaceData);
2262	}
2263	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2264
2265	pMipLevel->fDirty = false;
2266	}
2267	}
2268	}
2269	else if (target == GL_TEXTURE_2D)
2270	{
2271	for (uint32_t i = 0; i < numMipLevels; ++i)
2272	{
2273	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2274	* exposing random host memory to the guest and helps a with the fedora 21 surface
2275	* corruption issues (launchpad, background, search field, login).
2276	*/
2277	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[i];
2278	Assert(pMipLevel->mipmapSize.depth == 1);
2279
2280	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2281	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2282
2283	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2284	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2285	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2286	{
2287	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2288	i,
2289	pSurface->internalFormatGL,
2290	pMipLevel->mipmapSize.width,
2291	pMipLevel->mipmapSize.height,
2292	0,
2293	pMipLevel->cbSurface,
2294	pMipLevel->pSurfaceData);
2295	}
2296	else
2297	{
2298	glTexImage2D(GL_TEXTURE_2D,
2299	i,
2300	pSurface->internalFormatGL,
2301	pMipLevel->mipmapSize.width,
2302	pMipLevel->mipmapSize.height,
2303	0,
2304	pSurface->formatGL,
2305	pSurface->typeGL,
2306	pMipLevel->pSurfaceData);
2307	}
2308	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2309
2310	pMipLevel->fDirty = false;
2311	}
2312	}
2313
2314	pSurface->fDirty = false;
2315
2316	/* Restore unpacking parameters. */
2317	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2318
2319	/* Restore the old active texture. */
2320	glBindTexture(target, activeTexture);
2321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2322
2323	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2324	pSurface->targetGL = target;
2325	pSurface->bindingGL = binding;
2326
2327	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2328	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2329	return VINF_SUCCESS;
2330	}
2331
2332
2333	/**
2334	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2335	*
2336	* @returns VBox status code.
2337	* @param pThis The VGA device instance.
2338	* @param pState The VMSVGA3d state.
2339	* @param pDstSurface The destination host surface.
2340	* @param uDstFace The destination face (valid).
2341	* @param uDstMipmap The destination mipmap level (valid).
2342	* @param pDstBox The destination box.
2343	* @param pSrcSurface The source host surface.
2344	* @param uSrcFace The destination face (valid).
2345	* @param uSrcMipmap The source mimap level (valid).
2346	* @param pSrcBox The source box.
2347	* @param enmMode The strecht blt mode .
2348	* @param pContext The VMSVGA3d context (already current for OGL).
2349	*/
2350	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2351	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2352	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2353	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2354	{
2355	RT_NOREF(pThis);
2356
2357	/* Activate the read and draw framebuffer objects. */
2358	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2359	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2360	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2361	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2362
2363	/* Bind the source and destination objects to the right place. */
2364	GLenum textarget;
2365	if (pSrcSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2366	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2367	else
2368	textarget = GL_TEXTURE_2D;
2369	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2370	pSrcSurface->oglId.texture, uSrcMipmap);
2371	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2372
2373	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2374	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2375	else
2376	textarget = GL_TEXTURE_2D;
2377	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, textarget,
2378	pDstSurface->oglId.texture, uDstMipmap);
2379	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2380
2381	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2382	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2383	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2384	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2385	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2386
2387	pState->ext.glBlitFramebuffer(pSrcBox->x,
2388	pSrcBox->y,
2389	pSrcBox->x + pSrcBox->w, /* exclusive. */
2390	pSrcBox->y + pSrcBox->h,
2391	pDstBox->x,
2392	pDstBox->y,
2393	pDstBox->x + pDstBox->w, /* exclusive. */
2394	pDstBox->y + pDstBox->h,
2395	GL_COLOR_BUFFER_BIT,
2396	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2397	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2398
2399	/* Reset the frame buffer association */
2400	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2401	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2402
2403	return VINF_SUCCESS;
2404	}
2405
2406	/**
2407	* Save texture packing parameters and loads those appropriate for the given
2408	* surface.
2409	*
2410	* @param pState The VMSVGA3D state structure.
2411	* @param pContext The active context.
2412	* @param pSurface The surface.
2413	* @param pSave Where to save stuff.
2414	*/
2415	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2416	PVMSVGAPACKPARAMS pSave)
2417	{
2418	RT_NOREF(pState);
2419	/*
2420	* Save (ignore errors, setting the defaults we want and avoids restore).
2421	*/
2422	pSave->iAlignment = 1;
2423	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2424	pSave->cxRow = 0;
2425	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2426
2427	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2428	pSave->cyImage = 0;
2429	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2430	Assert(pSave->cyImage == 0);
2431
2432	pSave->fSwapBytes = GL_FALSE;
2433	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2434	Assert(pSave->fSwapBytes == GL_FALSE);
2435
2436	pSave->fLsbFirst = GL_FALSE;
2437	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2438	Assert(pSave->fLsbFirst == GL_FALSE);
2439
2440	pSave->cSkipRows = 0;
2441	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2442	Assert(pSave->cSkipRows == 0);
2443
2444	pSave->cSkipPixels = 0;
2445	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2446	Assert(pSave->cSkipPixels == 0);
2447
2448	pSave->cSkipImages = 0;
2449	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2450	Assert(pSave->cSkipImages == 0);
2451
2452	VMSVGA3D_CLEAR_GL_ERRORS();
2453	#endif
2454
2455	/*
2456	* Setup unpack.
2457	*
2458	* Note! We use 1 as alignment here because we currently don't do any
2459	* aligning of line pitches anywhere.
2460	*/
2461	NOREF(pSurface);
2462	if (pSave->iAlignment != 1)
2463	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2464	if (pSave->cxRow != 0)
2465	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2466	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2467	if (pSave->cyImage != 0)
2468	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2469	if (pSave->fSwapBytes != 0)
2470	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2471	if (pSave->fLsbFirst != 0)
2472	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2473	if (pSave->cSkipRows != 0)
2474	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2475	if (pSave->cSkipPixels != 0)
2476	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2477	if (pSave->cSkipImages != 0)
2478	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2479	#endif
2480	}
2481
2482
2483	/**
2484	* Restores texture packing parameters.
2485	*
2486	* @param pState The VMSVGA3D state structure.
2487	* @param pContext The active context.
2488	* @param pSurface The surface.
2489	* @param pSave Where stuff was saved.
2490	*/
2491	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2492	PCVMSVGAPACKPARAMS pSave)
2493	{
2494	RT_NOREF(pState, pSurface);
2495	if (pSave->iAlignment != 1)
2496	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2497	if (pSave->cxRow != 0)
2498	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2499	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2500	if (pSave->cyImage != 0)
2501	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2502	if (pSave->fSwapBytes != 0)
2503	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2504	if (pSave->fLsbFirst != 0)
2505	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2506	if (pSave->cSkipRows != 0)
2507	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2508	if (pSave->cSkipPixels != 0)
2509	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2510	if (pSave->cSkipImages != 0)
2511	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2512	#endif
2513	}
2514
2515
2516	/**
2517	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2518	*
2519	* @returns Failure status code or @a rc.
2520	* @param pThis The VGA device instance data.
2521	* @param pState The VMSVGA3d state.
2522	* @param pSurface The host surface.
2523	* @param pMipLevel Mipmap level. The caller knows it already.
2524	* @param uHostFace The host face (valid).
2525	* @param uHostMipmap The host mipmap level (valid).
2526	* @param GuestPtr The guest pointer.
2527	* @param cbGuestPitch The guest pitch.
2528	* @param transfer The transfer direction.
2529	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2530	* @param pContext The context (for OpenGL).
2531	* @param rc The current rc for all boxes.
2532	* @param iBox The current box number (for Direct 3D).
2533	*/
2534	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2535	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2536	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2537	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2538	{
2539	RT_NOREF(iBox);
2540
2541	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2542	{
2543	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE:
2544	case SVGA3D_SURFACE_CUBEMAP \| SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2545	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2546	case SVGA3D_SURFACE_HINT_TEXTURE:
2547	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2548	{
2549	uint32_t cbSurfacePitch;
2550	uint8_t *pDoubleBuffer;
2551	uint32_t offHst;
2552
2553	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2554	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2555	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2556	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2557
2558	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2559	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2560	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2561	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2562
2563	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2564	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2565	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2566
2567	GLenum texImageTarget;
2568	if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2569	{
2570	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2571	}
2572	else
2573	{
2574	Assert(pSurface->targetGL == GL_TEXTURE_2D);
2575	texImageTarget = GL_TEXTURE_2D;
2576	}
2577
2578	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2579	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2580
2581	if (transfer == SVGA3D_READ_HOST_VRAM)
2582	{
2583	GLint activeTexture;
2584
2585	/* Must bind texture to the current context in order to read it. */
2586	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2587	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2588
2589	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2590	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2591
2592	/* Set row length and alignment of the input data. */
2593	VMSVGAPACKPARAMS SavedParams;
2594	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2595
2596	glGetTexImage(texImageTarget,
2597	uHostMipmap,
2598	pSurface->formatGL,
2599	pSurface->typeGL,
2600	pDoubleBuffer);
2601	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2602
2603	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2604
2605	/* Restore the old active texture. */
2606	glBindTexture(pSurface->targetGL, activeTexture);
2607	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2608
2609	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch;
2610	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2611	}
2612	else
2613	{
2614	/* The buffer will contain only the copied rectangle. */
2615	offHst = 0;
2616	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2617	}
2618
2619	uint32_t const offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch;
2620
2621	rc = vmsvgaGMRTransfer(pThis,
2622	transfer,
2623	pDoubleBuffer,
2624	pMipLevel->cbSurface,
2625	offHst,
2626	cbSurfacePitch,
2627	GuestPtr,
2628	offGst,
2629	cbGuestPitch,
2630	cBlocksX * pSurface->cbBlock,
2631	cBlocksY);
2632	AssertRC(rc);
2633
2634	/* Update the opengl surface data. */
2635	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2636	{
2637	GLint activeTexture = 0;
2638	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2639	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2640
2641	/* Must bind texture to the current context in order to change it. */
2642	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2643	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2644
2645	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2646
2647	/* Set row length and alignment of the input data. */
2648	VMSVGAPACKPARAMS SavedParams;
2649	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2650
2651	glTexSubImage2D(texImageTarget,
2652	uHostMipmap,
2653	u32HostBlockX,
2654	u32HostBlockY,
2655	cBlocksX,
2656	cBlocksY,
2657	pSurface->formatGL,
2658	pSurface->typeGL,
2659	pDoubleBuffer);
2660	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2661
2662	/* Restore old values. */
2663	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2664
2665	/* Restore the old active texture. */
2666	glBindTexture(pSurface->targetGL, activeTexture);
2667	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2668	}
2669
2670	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
2671
2672	/* Free the double buffer. */
2673	RTMemFree(pDoubleBuffer);
2674	break;
2675	}
2676
2677	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2678	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2679	break;
2680
2681	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2682	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2683	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2684	{
2685	/* Buffers are uncompressed. */
2686	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
2687
2688	/* Caller already clipped pBox and buffers are 1-dimensional. */
2689	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
2690
2691	VMSVGA3D_CLEAR_GL_ERRORS();
2692	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2693	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2694	{
2695	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2696	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2697	if (RT_LIKELY(pbData != NULL))
2698	{
2699	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2700	GLint cbStrictBufSize;
2701	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2702	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2703	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2704	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2705	#endif
2706	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2707	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2708	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2709	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2710
2711	uint32_t const offHst = pBox->x * pSurface->cbBlock;
2712
2713	rc = vmsvgaGMRTransfer(pThis,
2714	transfer,
2715	pbData,
2716	pMipLevel->cbSurface,
2717	offHst,
2718	pMipLevel->cbSurfacePitch,
2719	GuestPtr,
2720	pBox->srcx * pSurface->cbBlock,
2721	cbGuestPitch,
2722	pBox->w * pSurface->cbBlock,
2723	pBox->h);
2724	AssertRC(rc);
2725
2726	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offHst));
2727
2728	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2729	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2730	}
2731	else
2732	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2733	}
2734	else
2735	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2736	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2737	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2738	break;
2739	}
2740
2741	default:
2742	AssertFailed();
2743	break;
2744	}
2745
2746	return rc;
2747	}
2748
2749	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2750	{
2751	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2752	PVMSVGA3DSURFACE pSurface;
2753	int rc = VINF_SUCCESS;
2754	PVMSVGA3DCONTEXT pContext;
2755	uint32_t cid;
2756	GLint activeTexture = 0;
2757
2758	AssertReturn(pState, VERR_NO_MEMORY);
2759
2760	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
2761	AssertRCReturn(rc, rc);
2762
2763	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2764	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2765	pSurface->autogenFilter = filter;
2766
2767	LogFunc(("sid=%x filter=%d\n", sid, filter));
2768
2769	cid = SVGA3D_INVALID_ID;
2770	pContext = &pState->SharedCtx;
2771	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2772
2773	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2774	{
2775	/* Unknown surface type; turn it into a texture. */
2776	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2777	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2778	AssertRCReturn(rc, rc);
2779	}
2780	else
2781	{
2782	/** @todo new filter */
2783	AssertFailed();
2784	}
2785
2786	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2787	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2788
2789	/* Must bind texture to the current context in order to change it. */
2790	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
2791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2792
2793	/* Generate the mip maps. */
2794	pState->ext.glGenerateMipmap(pSurface->targetGL);
2795	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2796
2797	/* Restore the old texture. */
2798	glBindTexture(pSurface->targetGL, activeTexture);
2799	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2800
2801	return VINF_SUCCESS;
2802	}
2803
2804
2805	#ifdef RT_OS_LINUX
2806	/**
2807	* X11 event handling thread.
2808	*
2809	* @returns VINF_SUCCESS (ignored)
2810	* @param hThreadSelf thread handle
2811	* @param pvUser pointer to pState structure
2812	*/
2813	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
2814	{
2815	RT_NOREF(hThreadSelf);
2816	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
2817	while (!pState->bTerminate)
2818	{
2819	while (XPending(pState->display) > 0)
2820	{
2821	XEvent event;
2822	XNextEvent(pState->display, &event);
2823
2824	switch (event.type)
2825	{
2826	default:
2827	break;
2828	}
2829	}
2830	/* sleep for 16ms to not burn too many cycles */
2831	RTThreadSleep(16);
2832	}
2833	return VINF_SUCCESS;
2834	}
2835	#endif // RT_OS_LINUX
2836
2837
2838	/**
2839	* Create a new 3d context
2840	*
2841	* @returns VBox status code.
2842	* @param pThis VGA device instance data.
2843	* @param cid Context id
2844	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
2845	*/
2846	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
2847	{
2848	int rc;
2849	PVMSVGA3DCONTEXT pContext;
2850	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2851
2852	AssertReturn(pState, VERR_NO_MEMORY);
2853	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
2854	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
2855	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
2856	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
2857	#endif
2858
2859	Log(("vmsvga3dContextDefine id %x\n", cid));
2860	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
2861	if (pState->idTestContext == SVGA_ID_INVALID)
2862	{
2863	pState->idTestContext = 207;
2864	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
2865	AssertRCReturn(rc, rc);
2866	}
2867	#endif
2868
2869	if (cid == VMSVGA3D_SHARED_CTX_ID)
2870	pContext = &pState->SharedCtx;
2871	else
2872	{
2873	if (cid >= pState->cContexts)
2874	{
2875	/* Grow the array. */
2876	uint32_t cNew = RT_ALIGN(cid + 15, 16);
2877	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
2878	AssertReturn(pvNew, VERR_NO_MEMORY);
2879	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
2880	while (pState->cContexts < cNew)
2881	{
2882	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
2883	AssertReturn(pContext, VERR_NO_MEMORY);
2884	pContext->id = SVGA3D_INVALID_ID;
2885	pState->papContexts[pState->cContexts++] = pContext;
2886	}
2887	}
2888	/* If one already exists with this id, then destroy it now. */
2889	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
2890	vmsvga3dContextDestroy(pThis, cid);
2891
2892	pContext = pState->papContexts[cid];
2893	}
2894
2895	/*
2896	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
2897	*/
2898	PVMSVGA3DCONTEXT pSharedCtx = NULL;
2899	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
2900	{
2901	pSharedCtx = &pState->SharedCtx;
2902	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
2903	{
2904	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
2905	AssertLogRelRCReturn(rc, rc);
2906	}
2907	}
2908
2909	/*
2910	* Initialize the context.
2911	*/
2912	memset(pContext, 0, sizeof(*pContext));
2913	pContext->id = cid;
2914	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
2915	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
2916
2917	pContext->state.shidVertex = SVGA3D_INVALID_ID;
2918	pContext->state.shidPixel = SVGA3D_INVALID_ID;
2919	pContext->idFramebuffer = OPENGL_INVALID_ID;
2920	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
2921	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
2922
2923	rc = ShaderContextCreate(&pContext->pShaderContext);
2924	AssertRCReturn(rc, rc);
2925
2926	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
2927	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
2928
2929	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
2930
2931	#ifdef RT_OS_WINDOWS
2932	/* Create a context window with minimal 4x4 size. We will never use the swapchain
2933	* to present the rendered image. Rendered images from the guest will be copied to
2934	* the VMSVGA SCREEN object, which can be either an offscreen render target or
2935	* system memory in the guest VRAM.
2936	*/
2937	CREATESTRUCT cs;
2938	cs.lpCreateParams = NULL;
2939	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY;
2940	# ifdef DEBUG_GFX_WINDOW
2941	cs.lpszName = (char *)RTMemAllocZ(256);
2942	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
2943	# else
2944	cs.lpszName = NULL;
2945	# endif
2946	cs.lpszClass = 0;
2947	# ifdef DEBUG_GFX_WINDOW
2948	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
2949	# else
2950	cs.style = WS_DISABLED \| WS_CHILD;
2951	# endif
2952	cs.x = 0;
2953	cs.y = 0;
2954	cs.cx = 4;
2955	cs.cy = 4;
2956	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
2957	cs.hMenu = NULL;
2958	cs.hInstance = pState->hInstance;
2959
2960	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
2961	AssertRCReturn(rc, rc);
2962
2963	pContext->hdc = GetDC(pContext->hwnd);
2964	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
2965
2966	PIXELFORMATDESCRIPTOR pfd = {
2967	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
2968	1, /* version number */
2969	PFD_DRAW_TO_WINDOW \| /* support window */
2970	PFD_SUPPORT_OPENGL, /* support OpenGL */
2971	PFD_TYPE_RGBA, /* RGBA type */
2972	24, /* 24-bit color depth */
2973	0, 0, 0, 0, 0, 0, /* color bits ignored */
2974	8, /* alpha buffer */
2975	0, /* shift bit ignored */
2976	0, /* no accumulation buffer */
2977	0, 0, 0, 0, /* accum bits ignored */
2978	16, /* set depth buffer */
2979	16, /* set stencil buffer */
2980	0, /* no auxiliary buffer */
2981	PFD_MAIN_PLANE, /* main layer */
2982	0, /* reserved */
2983	0, 0, 0 /* layer masks ignored */
2984	};
2985	int pixelFormat;
2986	BOOL ret;
2987
2988	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2989	/** @todo is this really necessary?? */
2990	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
2991	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2992
2993	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
2994	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
2995
2996	pContext->hglrc = wglCreateContext(pContext->hdc);
2997	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
2998
2999	if (pSharedCtx)
3000	{
3001	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3002	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3003	}
3004
3005	#elif defined(RT_OS_DARWIN)
3006	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3007
3008	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3009	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3010	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3011	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3012	pThis->svga.uWidth, pThis->svga.uHeight,
3013	pShareContext, pContext->fOtherProfile);
3014
3015	#else
3016	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3017
3018	if (pState->display == NULL)
3019	{
3020	/* get an X display and make sure we have glX 1.3 */
3021	pState->display = XOpenDisplay(0);
3022	Assert(pState->display);
3023	int glxMajor, glxMinor;
3024	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3025	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3026	/* start our X event handling thread */
3027	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3028	if (RT_FAILURE(rc))
3029	{
3030	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3031	return rc;
3032	}
3033	}
3034	int attrib[] =
3035	{
3036	GLX_RGBA,
3037	GLX_RED_SIZE, 1,
3038	GLX_GREEN_SIZE, 1,
3039	GLX_BLUE_SIZE, 1,
3040	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3041	GLX_DOUBLEBUFFER,
3042	None
3043	};
3044	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3045	XSetWindowAttributes swa;
3046	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3047	swa.border_pixel = 0;
3048	swa.background_pixel = 0;
3049	swa.event_mask = StructureNotifyMask \| ExposureMask;
3050	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3051	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3052	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3053	0, vi->depth, InputOutput,
3054	vi->visual, flags, &swa);
3055	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3056	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3057
3058	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3059
3060	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3061	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3062	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3063	#endif
3064
3065	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3066
3067	/* NULL during the first PowerOn call. */
3068	if (pState->ext.glGenFramebuffers)
3069	{
3070	/* Create a framebuffer object for this context. */
3071	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3072	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3073
3074	/* Bind the object to the framebuffer target. */
3075	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3076	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3077
3078	/* Create read and draw framebuffer objects for this context. */
3079	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3081
3082	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3083	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3084
3085	}
3086	#if 0
3087	/** @todo move to shader lib!!! */
3088	/* Clear the screen */
3089	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3090
3091	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3092	glClearIndex(0);
3093	glClearDepth(1);
3094	glClearStencil(0xffff);
3095	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3096	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3097	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3098	if (pState->ext.glProvokingVertex)
3099	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3100	/** @todo move to shader lib!!! */
3101	#endif
3102	return VINF_SUCCESS;
3103	}
3104
3105
3106	/**
3107	* Create a new 3d context
3108	*
3109	* @returns VBox status code.
3110	* @param pThis VGA device instance data.
3111	* @param cid Context id
3112	*/
3113	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3114	{
3115	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3116	}
3117
3118	/**
3119	* Destroys a 3d context.
3120	*
3121	* @returns VBox status code.
3122	* @param pThis VGA device instance data.
3123	* @param pContext The context to destroy.
3124	* @param cid Context id
3125	*/
3126	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3127	{
3128	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3129	AssertReturn(pState, VERR_NO_MEMORY);
3130	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3131	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3132	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3133
3134	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3135
3136	/* Destroy all leftover pixel shaders. */
3137	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3138	{
3139	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3140	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3141	}
3142	if (pContext->paPixelShader)
3143	RTMemFree(pContext->paPixelShader);
3144
3145	/* Destroy all leftover vertex shaders. */
3146	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3147	{
3148	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3149	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3150	}
3151	if (pContext->paVertexShader)
3152	RTMemFree(pContext->paVertexShader);
3153
3154	if (pContext->state.paVertexShaderConst)
3155	RTMemFree(pContext->state.paVertexShaderConst);
3156	if (pContext->state.paPixelShaderConst)
3157	RTMemFree(pContext->state.paPixelShaderConst);
3158
3159	if (pContext->pShaderContext)
3160	{
3161	int rc = ShaderContextDestroy(pContext->pShaderContext);
3162	AssertRC(rc);
3163	}
3164
3165	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3166	{
3167	/* Unbind the object from the framebuffer target. */
3168	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3169	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3170	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3171	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3172
3173	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3174	{
3175	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3176	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3177	}
3178	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3179	{
3180	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3181	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3182	}
3183	}
3184
3185	vmsvga3dOcclusionQueryDelete(pState, pContext);
3186
3187	#ifdef RT_OS_WINDOWS
3188	wglMakeCurrent(pContext->hdc, NULL);
3189	wglDeleteContext(pContext->hglrc);
3190	ReleaseDC(pContext->hwnd, pContext->hdc);
3191
3192	/* Destroy the window we've created. */
3193	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3194	AssertRC(rc);
3195	#elif defined(RT_OS_DARWIN)
3196	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3197	#elif defined(RT_OS_LINUX)
3198	glXMakeCurrent(pState->display, None, NULL);
3199	glXDestroyContext(pState->display, pContext->glxContext);
3200	XDestroyWindow(pState->display, pContext->window);
3201	#endif
3202
3203	memset(pContext, 0, sizeof(*pContext));
3204	pContext->id = SVGA3D_INVALID_ID;
3205
3206	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3207	return VINF_SUCCESS;
3208	}
3209
3210	/**
3211	* Destroy an existing 3d context
3212	*
3213	* @returns VBox status code.
3214	* @param pThis VGA device instance data.
3215	* @param cid Context id
3216	*/
3217	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3218	{
3219	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3220	AssertReturn(pState, VERR_WRONG_ORDER);
3221
3222	/*
3223	* Resolve the context and hand it to the common worker function.
3224	*/
3225	if ( cid < pState->cContexts
3226	&& pState->papContexts[cid]->id == cid)
3227	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3228
3229	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3230	return VINF_SUCCESS;
3231	}
3232
3233	/**
3234	* Worker for vmsvga3dChangeMode that resizes a context.
3235	*
3236	* @param pThis The VGA device instance data.
3237	* @param pState The VMSVGA3d state.
3238	* @param pContext The context.
3239	*/
3240	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3241	{
3242	#ifdef RT_OS_WINDOWS
3243	/* Resize the window. */
3244	CREATESTRUCT cs;
3245	RT_ZERO(cs);
3246	cs.cx = pThis->svga.uWidth;
3247	cs.cy = pThis->svga.uHeight;
3248	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3249	AssertRC(rc);
3250
3251	#elif defined(RT_OS_DARWIN)
3252	RT_NOREF(pState);
3253	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3254
3255	#elif defined(RT_OS_LINUX)
3256	XWindowChanges wc;
3257	wc.width = pThis->svga.uWidth;
3258	wc.height = pThis->svga.uHeight;
3259	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3260	#endif
3261	}
3262
3263	/* Handle resize */
3264	int vmsvga3dChangeMode(PVGASTATE pThis)
3265	{
3266	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3267	AssertReturn(pState, VERR_NO_MEMORY);
3268
3269	/* Resize the shared context too. */
3270	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3271	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3272
3273	/* Resize all active contexts. */
3274	for (uint32_t i = 0; i < pState->cContexts; i++)
3275	{
3276	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3277	if (pContext->id != SVGA3D_INVALID_ID)
3278	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3279	}
3280
3281	return VINF_SUCCESS;
3282	}
3283
3284
3285	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3286	{
3287	PVMSVGA3DCONTEXT pContext;
3288	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3289	AssertReturn(pState, VERR_NO_MEMORY);
3290	bool fModelViewChanged = false;
3291
3292	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3293
3294	if ( cid >= pState->cContexts
3295	\|\| pState->papContexts[cid]->id != cid)
3296	{
3297	Log(("vmsvga3dSetTransform invalid context id!\n"));
3298	return VERR_INVALID_PARAMETER;
3299	}
3300	pContext = pState->papContexts[cid];
3301	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3302
3303	/* Save this matrix for vm state save/restore. */
3304	pContext->state.aTransformState[type].fValid = true;
3305	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3306	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3307
3308	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)));
3309	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)));
3310	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)));
3311	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)));
3312
3313	switch (type)
3314	{
3315	case SVGA3D_TRANSFORM_VIEW:
3316	/* View * World = Model View */
3317	glMatrixMode(GL_MODELVIEW);
3318	glLoadMatrixf(matrix);
3319	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3320	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3322	fModelViewChanged = true;
3323	break;
3324
3325	case SVGA3D_TRANSFORM_PROJECTION:
3326	{
3327	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3328	AssertRCReturn(rc, rc);
3329	break;
3330	}
3331
3332	case SVGA3D_TRANSFORM_TEXTURE0:
3333	glMatrixMode(GL_TEXTURE);
3334	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3335	glLoadMatrixf(matrix);
3336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3337	break;
3338
3339	case SVGA3D_TRANSFORM_TEXTURE1:
3340	case SVGA3D_TRANSFORM_TEXTURE2:
3341	case SVGA3D_TRANSFORM_TEXTURE3:
3342	case SVGA3D_TRANSFORM_TEXTURE4:
3343	case SVGA3D_TRANSFORM_TEXTURE5:
3344	case SVGA3D_TRANSFORM_TEXTURE6:
3345	case SVGA3D_TRANSFORM_TEXTURE7:
3346	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3347	return VERR_INVALID_PARAMETER;
3348
3349	case SVGA3D_TRANSFORM_WORLD:
3350	/* View * World = Model View */
3351	glMatrixMode(GL_MODELVIEW);
3352	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3353	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3354	else
3355	glLoadIdentity();
3356	glMultMatrixf(matrix);
3357	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3358	fModelViewChanged = true;
3359	break;
3360
3361	case SVGA3D_TRANSFORM_WORLD1:
3362	case SVGA3D_TRANSFORM_WORLD2:
3363	case SVGA3D_TRANSFORM_WORLD3:
3364	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3365	return VERR_INVALID_PARAMETER;
3366
3367	default:
3368	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3369	return VERR_INVALID_PARAMETER;
3370	}
3371
3372	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3373	if (fModelViewChanged)
3374	{
3375	/* Reprogram the clip planes. */
3376	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3377	{
3378	if (pContext->state.aClipPlane[j].fValid == true)
3379	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3380	}
3381
3382	/* Reprogram the light data. */
3383	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3384	{
3385	if (pContext->state.aLightData[j].fValidData == true)
3386	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3387	}
3388	}
3389
3390	return VINF_SUCCESS;
3391	}
3392
3393	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3394	{
3395	PVMSVGA3DCONTEXT pContext;
3396	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3397	AssertReturn(pState, VERR_NO_MEMORY);
3398
3399	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3400
3401	if ( cid >= pState->cContexts
3402	\|\| pState->papContexts[cid]->id != cid)
3403	{
3404	Log(("vmsvga3dSetZRange invalid context id!\n"));
3405	return VERR_INVALID_PARAMETER;
3406	}
3407	pContext = pState->papContexts[cid];
3408	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3409
3410	pContext->state.zRange = zRange;
3411	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3412
3413	if (zRange.min < -1.0)
3414	zRange.min = -1.0;
3415	if (zRange.max > 1.0)
3416	zRange.max = 1.0;
3417
3418	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3419	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3420	return VINF_SUCCESS;
3421	}
3422
3423	/**
3424	* Convert SVGA blend op value to its OpenGL equivalent
3425	*/
3426	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3427	{
3428	switch (blendOp)
3429	{
3430	case SVGA3D_BLENDOP_ZERO:
3431	return GL_ZERO;
3432	case SVGA3D_BLENDOP_ONE:
3433	return GL_ONE;
3434	case SVGA3D_BLENDOP_SRCCOLOR:
3435	return GL_SRC_COLOR;
3436	case SVGA3D_BLENDOP_INVSRCCOLOR:
3437	return GL_ONE_MINUS_SRC_COLOR;
3438	case SVGA3D_BLENDOP_SRCALPHA:
3439	return GL_SRC_ALPHA;
3440	case SVGA3D_BLENDOP_INVSRCALPHA:
3441	return GL_ONE_MINUS_SRC_ALPHA;
3442	case SVGA3D_BLENDOP_DESTALPHA:
3443	return GL_DST_ALPHA;
3444	case SVGA3D_BLENDOP_INVDESTALPHA:
3445	return GL_ONE_MINUS_DST_ALPHA;
3446	case SVGA3D_BLENDOP_DESTCOLOR:
3447	return GL_DST_COLOR;
3448	case SVGA3D_BLENDOP_INVDESTCOLOR:
3449	return GL_ONE_MINUS_DST_COLOR;
3450	case SVGA3D_BLENDOP_SRCALPHASAT:
3451	return GL_SRC_ALPHA_SATURATE;
3452	case SVGA3D_BLENDOP_BLENDFACTOR:
3453	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3454	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3455	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3456	default:
3457	AssertFailed();
3458	return GL_ONE;
3459	}
3460	}
3461
3462	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3463	{
3464	switch (blendEq)
3465	{
3466	case SVGA3D_BLENDEQ_ADD:
3467	return GL_FUNC_ADD;
3468	case SVGA3D_BLENDEQ_SUBTRACT:
3469	return GL_FUNC_SUBTRACT;
3470	case SVGA3D_BLENDEQ_REVSUBTRACT:
3471	return GL_FUNC_REVERSE_SUBTRACT;
3472	case SVGA3D_BLENDEQ_MINIMUM:
3473	return GL_MIN;
3474	case SVGA3D_BLENDEQ_MAXIMUM:
3475	return GL_MAX;
3476	default:
3477	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
3478	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
3479	return GL_FUNC_ADD;
3480	}
3481	}
3482
3483	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3484	{
3485	switch (cmpFunc)
3486	{
3487	case SVGA3D_CMP_NEVER:
3488	return GL_NEVER;
3489	case SVGA3D_CMP_LESS:
3490	return GL_LESS;
3491	case SVGA3D_CMP_EQUAL:
3492	return GL_EQUAL;
3493	case SVGA3D_CMP_LESSEQUAL:
3494	return GL_LEQUAL;
3495	case SVGA3D_CMP_GREATER:
3496	return GL_GREATER;
3497	case SVGA3D_CMP_NOTEQUAL:
3498	return GL_NOTEQUAL;
3499	case SVGA3D_CMP_GREATEREQUAL:
3500	return GL_GEQUAL;
3501	case SVGA3D_CMP_ALWAYS:
3502	return GL_ALWAYS;
3503	default:
3504	Assert(cmpFunc == SVGA3D_CMP_INVALID);
3505	return GL_LESS;
3506	}
3507	}
3508
3509	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3510	{
3511	switch (stencilOp)
3512	{
3513	case SVGA3D_STENCILOP_KEEP:
3514	return GL_KEEP;
3515	case SVGA3D_STENCILOP_ZERO:
3516	return GL_ZERO;
3517	case SVGA3D_STENCILOP_REPLACE:
3518	return GL_REPLACE;
3519	case SVGA3D_STENCILOP_INCRSAT:
3520	return GL_INCR_WRAP;
3521	case SVGA3D_STENCILOP_DECRSAT:
3522	return GL_DECR_WRAP;
3523	case SVGA3D_STENCILOP_INVERT:
3524	return GL_INVERT;
3525	case SVGA3D_STENCILOP_INCR:
3526	return GL_INCR;
3527	case SVGA3D_STENCILOP_DECR:
3528	return GL_DECR;
3529	default:
3530	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
3531	return GL_KEEP;
3532	}
3533	}
3534
3535	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3536	{
3537	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3538	PVMSVGA3DCONTEXT pContext;
3539	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3540	AssertReturn(pState, VERR_NO_MEMORY);
3541
3542	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3543
3544	if ( cid >= pState->cContexts
3545	\|\| pState->papContexts[cid]->id != cid)
3546	{
3547	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3548	return VERR_INVALID_PARAMETER;
3549	}
3550	pContext = pState->papContexts[cid];
3551	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3552
3553	for (unsigned i = 0; i < cRenderStates; i++)
3554	{
3555	GLenum enableCap = ~(GLenum)0;
3556	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3557	/* Save the render state for vm state saving. */
3558	if (pRenderState[i].state < SVGA3D_RS_MAX)
3559	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3560
3561	switch (pRenderState[i].state)
3562	{
3563	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3564	enableCap = GL_DEPTH_TEST;
3565	val = pRenderState[i].uintValue;
3566	break;
3567
3568	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3569	glDepthMask(!!pRenderState[i].uintValue);
3570	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3571	break;
3572
3573	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3574	enableCap = GL_ALPHA_TEST;
3575	val = pRenderState[i].uintValue;
3576	break;
3577
3578	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3579	enableCap = GL_DITHER;
3580	val = pRenderState[i].uintValue;
3581	break;
3582
3583	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3584	enableCap = GL_FOG;
3585	val = pRenderState[i].uintValue;
3586	break;
3587
3588	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3589	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3590	break;
3591
3592	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3593	enableCap = GL_LIGHTING;
3594	val = pRenderState[i].uintValue;
3595	break;
3596
3597	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3598	/* not applicable */
3599	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3600	break;
3601
3602	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3603	enableCap = GL_POINT_SPRITE_ARB;
3604	val = pRenderState[i].uintValue;
3605	break;
3606
3607	case SVGA3D_RS_POINTSIZE: /* float */
3608	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3609	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3610	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3611	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3612	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3613
3614	glPointSize(pRenderState[i].floatValue);
3615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3616	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3617	break;
3618
3619	case SVGA3D_RS_POINTSIZEMIN: /* float */
3620	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3621	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3622	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3623	break;
3624
3625	case SVGA3D_RS_POINTSIZEMAX: /* float */
3626	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3627	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3628	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3629	break;
3630
3631	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3632	case SVGA3D_RS_POINTSCALE_A: /* float */
3633	case SVGA3D_RS_POINTSCALE_B: /* float */
3634	case SVGA3D_RS_POINTSCALE_C: /* float */
3635	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3636	break;
3637
3638	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3639	{
3640	GLfloat color[4]; /* red, green, blue, alpha */
3641
3642	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3643
3644	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3645	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3646	break;
3647	}
3648
3649	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3650	{
3651	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3652	for (uint32_t j = 0; j <= 5; j++)
3653	{
3654	if (pRenderState[i].uintValue & RT_BIT(j))
3655	glEnable(GL_CLIP_PLANE0 + j);
3656	else
3657	glDisable(GL_CLIP_PLANE0 + j);
3658	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3659	}
3660	break;
3661	}
3662
3663	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3664	{
3665	GLfloat color[4]; /* red, green, blue, alpha */
3666
3667	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3668
3669	glFogfv(GL_FOG_COLOR, color);
3670	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3671	break;
3672	}
3673
3674	case SVGA3D_RS_FOGSTART: /* float */
3675	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3676	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3677	break;
3678
3679	case SVGA3D_RS_FOGEND: /* float */
3680	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3681	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3682	break;
3683
3684	case SVGA3D_RS_FOGDENSITY: /* float */
3685	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3686	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3687	break;
3688
3689	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3690	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3692	break;
3693
3694	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3695	{
3696	SVGA3dFogMode mode;
3697	mode.uintValue = pRenderState[i].uintValue;
3698
3699	enableCap = GL_FOG_MODE;
3700	switch (mode.s.function)
3701	{
3702	case SVGA3D_FOGFUNC_EXP:
3703	val = GL_EXP;
3704	break;
3705	case SVGA3D_FOGFUNC_EXP2:
3706	val = GL_EXP2;
3707	break;
3708	case SVGA3D_FOGFUNC_LINEAR:
3709	val = GL_LINEAR;
3710	break;
3711	default:
3712	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
3713	break;
3714	}
3715
3716	/** @todo how to switch between vertex and pixel fog modes??? */
3717	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
3718	#if 0
3719	/* The fog type determines the render state. */
3720	switch (mode.s.type)
3721	{
3722	case SVGA3D_FOGTYPE_VERTEX:
3723	renderState = D3DRS_FOGVERTEXMODE;
3724	break;
3725	case SVGA3D_FOGTYPE_PIXEL:
3726	renderState = D3DRS_FOGTABLEMODE;
3727	break;
3728	default:
3729	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
3730	break;
3731	}
3732	#endif
3733
3734	/* Set the fog base to depth or range. */
3735	switch (mode.s.base)
3736	{
3737	case SVGA3D_FOGBASE_DEPTHBASED:
3738	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
3739	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3740	break;
3741	case SVGA3D_FOGBASE_RANGEBASED:
3742	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
3743	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3744	break;
3745	default:
3746	/* ignore */
3747	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
3748	break;
3749	}
3750	break;
3751	}
3752
3753	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
3754	{
3755	SVGA3dFillMode mode;
3756
3757	mode.uintValue = pRenderState[i].uintValue;
3758
3759	switch (mode.s.mode)
3760	{
3761	case SVGA3D_FILLMODE_POINT:
3762	val = GL_POINT;
3763	break;
3764	case SVGA3D_FILLMODE_LINE:
3765	val = GL_LINE;
3766	break;
3767	case SVGA3D_FILLMODE_FILL:
3768	val = GL_FILL;
3769	break;
3770	default:
3771	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
3772	break;
3773	}
3774	/* @note only front and back faces */
3775	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
3776	glPolygonMode(GL_FRONT_AND_BACK, val);
3777	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3778	break;
3779	}
3780
3781	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
3782	switch (pRenderState[i].uintValue)
3783	{
3784	case SVGA3D_SHADEMODE_FLAT:
3785	val = GL_FLAT;
3786	break;
3787
3788	case SVGA3D_SHADEMODE_SMOOTH:
3789	val = GL_SMOOTH;
3790	break;
3791
3792	default:
3793	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3794	break;
3795	}
3796
3797	glShadeModel(val);
3798	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3799	break;
3800
3801	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
3802	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
3803	/** @todo */
3804	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
3805	/*
3806	renderState = D3DRS_LINEPATTERN;
3807	val = pRenderState[i].uintValue;
3808	*/
3809	break;
3810
3811	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
3812	enableCap = GL_LINE_SMOOTH;
3813	val = pRenderState[i].uintValue;
3814	break;
3815
3816	case SVGA3D_RS_LINEWIDTH: /* float */
3817	glLineWidth(pRenderState[i].floatValue);
3818	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3819	break;
3820
3821	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
3822	{
3823	/* Refresh the blending state based on the new enable setting.
3824	* This will take existing states and set them using either glBlend* or glBlend*Separate.
3825	*/
3826	static SVGA3dRenderStateName const saRefreshState[] =
3827	{
3828	SVGA3D_RS_SRCBLEND,
3829	SVGA3D_RS_BLENDEQUATION
3830	};
3831	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
3832	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
3833	{
3834	renderstate[j].state = saRefreshState[j];
3835	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
3836	}
3837
3838	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
3839	AssertRCReturn(rc, rc);
3840
3841	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
3842	continue; /* Ignore if blend is enabled */
3843	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
3844	} RT_FALL_THRU();
3845
3846	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
3847	enableCap = GL_BLEND;
3848	val = pRenderState[i].uintValue;
3849	break;
3850
3851	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
3852	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
3853	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
3854	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
3855	{
3856	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
3857	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
3858
3859	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
3860	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3861	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
3862	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3863	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
3864	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3865	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
3866	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3867
3868	switch (pRenderState[i].state)
3869	{
3870	case SVGA3D_RS_SRCBLEND:
3871	srcRGB = blendop;
3872	break;
3873	case SVGA3D_RS_DSTBLEND:
3874	dstRGB = blendop;
3875	break;
3876	case SVGA3D_RS_SRCBLENDALPHA:
3877	srcAlpha = blendop;
3878	break;
3879	case SVGA3D_RS_DSTBLENDALPHA:
3880	dstAlpha = blendop;
3881	break;
3882	default:
3883	/* not possible; shut up gcc */
3884	AssertFailed();
3885	break;
3886	}
3887
3888	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3889	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
3890	else
3891	glBlendFunc(srcRGB, dstRGB);
3892	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3893	break;
3894	}
3895
3896	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
3897	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
3898	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
3899	{
3900	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
3901	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
3902	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
3903	}
3904	else
3905	{
3906	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3907	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3908	#else
3909	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
3910	#endif
3911	}
3912	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3913	break;
3914
3915	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
3916	{
3917	GLfloat red, green, blue, alpha;
3918
3919	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
3920
3921	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
3922	glBlendColor(red, green, blue, alpha);
3923	#else
3924	pState->ext.glBlendColor(red, green, blue, alpha);
3925	#endif
3926	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3927	break;
3928	}
3929
3930	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
3931	{
3932	GLenum mode = GL_BACK; /* default for OpenGL */
3933
3934	switch (pRenderState[i].uintValue)
3935	{
3936	case SVGA3D_FACE_NONE:
3937	break;
3938	case SVGA3D_FACE_FRONT:
3939	mode = GL_FRONT;
3940	break;
3941	case SVGA3D_FACE_BACK:
3942	mode = GL_BACK;
3943	break;
3944	case SVGA3D_FACE_FRONT_BACK:
3945	mode = GL_FRONT_AND_BACK;
3946	break;
3947	default:
3948	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
3949	break;
3950	}
3951	enableCap = GL_CULL_FACE;
3952	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
3953	{
3954	glCullFace(mode);
3955	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3956	val = 1;
3957	}
3958	else
3959	val = 0;
3960	break;
3961	}
3962
3963	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
3964	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
3965	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3966	break;
3967
3968	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
3969	{
3970	GLclampf ref;
3971
3972	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
3973	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3974	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
3975	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3976	break;
3977	}
3978
3979	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
3980	{
3981	GLint func;
3982
3983	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
3984	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3985	glAlphaFunc(func, pRenderState[i].floatValue);
3986	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3987	break;
3988	}
3989
3990	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
3991	{
3992	/* Refresh the stencil state based on the new enable setting.
3993	* This will take existing states and set them using either glStencil or glStencil*Separate.
3994	*/
3995	static SVGA3dRenderStateName const saRefreshState[] =
3996	{
3997	SVGA3D_RS_STENCILFUNC,
3998	SVGA3D_RS_STENCILFAIL,
3999	SVGA3D_RS_CCWSTENCILFUNC,
4000	SVGA3D_RS_CCWSTENCILFAIL
4001	};
4002	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4003	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4004	{
4005	renderstate[j].state = saRefreshState[j];
4006	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4007	}
4008
4009	int rc = vmsvga3dSetRenderState(pThis, cid, RT_ELEMENTS(renderstate), renderstate);
4010	AssertRCReturn(rc, rc);
4011
4012	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4013	continue; /* Ignore if stencil is enabled */
4014	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4015	} RT_FALL_THRU();
4016
4017	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4018	enableCap = GL_STENCIL_TEST;
4019	val = pRenderState[i].uintValue;
4020	break;
4021
4022	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4023	case SVGA3D_RS_STENCILREF: /* uint32_t */
4024	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4025	{
4026	GLint func, ref;
4027	GLuint mask;
4028
4029	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4030	glGetIntegerv(GL_STENCIL_FUNC, &func);
4031	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4032	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4033	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4034	glGetIntegerv(GL_STENCIL_REF, &ref);
4035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4036
4037	/* Update the changed value. */
4038	switch (pRenderState[i].state)
4039	{
4040	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4041	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4042	break;
4043
4044	case SVGA3D_RS_STENCILREF: /* uint32_t */
4045	ref = pRenderState[i].uintValue;
4046	break;
4047
4048	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4049	mask = pRenderState[i].uintValue;
4050	break;
4051
4052	default:
4053	/* not possible; shut up gcc */
4054	AssertFailed();
4055	break;
4056	}
4057
4058	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4059	{
4060	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4061	}
4062	else
4063	{
4064	glStencilFunc(func, ref, mask);
4065	}
4066	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4067	break;
4068	}
4069
4070	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4071	glStencilMask(pRenderState[i].uintValue);
4072	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4073	break;
4074
4075	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4076	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4077	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4078	{
4079	GLint sfail, dpfail, dppass;
4080	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4081
4082	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4083	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4084	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4086	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4088
4089	switch (pRenderState[i].state)
4090	{
4091	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4092	sfail = stencilop;
4093	break;
4094	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4095	dpfail = stencilop;
4096	break;
4097	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4098	dppass = stencilop;
4099	break;
4100	default:
4101	/* not possible; shut up gcc */
4102	AssertFailed();
4103	break;
4104	}
4105	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4106	{
4107	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4108	}
4109	else
4110	{
4111	glStencilOp(sfail, dpfail, dppass);
4112	}
4113	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4114	break;
4115	}
4116
4117	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4118	{
4119	GLint ref;
4120	GLuint mask;
4121	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4122
4123	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4124	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4126	glGetIntegerv(GL_STENCIL_REF, &ref);
4127	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4128
4129	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4130	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4131	break;
4132	}
4133
4134	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4135	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4136	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4137	{
4138	GLint sfail, dpfail, dppass;
4139	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4140
4141	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4142	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4143	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4144	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4145	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4146	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4147
4148	switch (pRenderState[i].state)
4149	{
4150	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4151	sfail = stencilop;
4152	break;
4153	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4154	dpfail = stencilop;
4155	break;
4156	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4157	dppass = stencilop;
4158	break;
4159	default:
4160	/* not possible; shut up gcc */
4161	AssertFailed();
4162	break;
4163	}
4164	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4165	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4166	break;
4167	}
4168
4169	case SVGA3D_RS_ZBIAS: /* float */
4170	/** @todo unknown meaning; depth bias is not identical
4171	renderState = D3DRS_DEPTHBIAS;
4172	val = pRenderState[i].uintValue;
4173	*/
4174	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4175	break;
4176
4177	case SVGA3D_RS_DEPTHBIAS: /* float */
4178	{
4179	GLfloat factor;
4180
4181	/** @todo not sure if the d3d & ogl definitions are identical. */
4182
4183	/* Do not change the factor part. */
4184	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4186
4187	glPolygonOffset(factor, pRenderState[i].floatValue);
4188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4189	break;
4190	}
4191
4192	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4193	{
4194	GLfloat units;
4195
4196	/** @todo not sure if the d3d & ogl definitions are identical. */
4197
4198	/* Do not change the factor part. */
4199	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4200	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4201
4202	glPolygonOffset(pRenderState[i].floatValue, units);
4203	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4204	break;
4205	}
4206
4207	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4208	{
4209	GLboolean red, green, blue, alpha;
4210	SVGA3dColorMask mask;
4211
4212	mask.uintValue = pRenderState[i].uintValue;
4213
4214	red = mask.s.red;
4215	green = mask.s.green;
4216	blue = mask.s.blue;
4217	alpha = mask.s.alpha;
4218
4219	glColorMask(red, green, blue, alpha);
4220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4221	break;
4222	}
4223
4224	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4225	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4226	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4227	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4228	break;
4229
4230	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4231	enableCap = GL_SCISSOR_TEST;
4232	val = pRenderState[i].uintValue;
4233	break;
4234
4235	#if 0
4236	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4237	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4238	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4239	val = pRenderState[i].uintValue;
4240	break;
4241
4242	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4243	renderState = D3DRS_SPECULARMATERIALSOURCE;
4244	val = pRenderState[i].uintValue;
4245	break;
4246
4247	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4248	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4249	val = pRenderState[i].uintValue;
4250	break;
4251
4252	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4253	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4254	val = pRenderState[i].uintValue;
4255	break;
4256	#endif
4257
4258	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4259	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4260	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4261	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4262	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4263	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4264	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4265	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4266	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4267	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4268	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4269	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4270	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4271	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4272	break;
4273
4274	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4275	case SVGA3D_RS_TWEENFACTOR: /* float */
4276	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4277	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4278	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4279	break;
4280
4281	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4282	enableCap = GL_MULTISAMPLE;
4283	val = pRenderState[i].uintValue;
4284	break;
4285
4286	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4287	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4288	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4289	break;
4290
4291	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4292	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4293	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4294	/*
4295	renderState = D3DRS_COORDINATETYPE;
4296	val = pRenderState[i].uintValue;
4297	*/
4298	break;
4299
4300	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4301	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4302	/* Invert the selected mode because of y-inversion (?) */
4303	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4304	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4305	break;
4306
4307	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4308	//AssertFailed();
4309	/*
4310	D3DRS_SRGBWRITEENABLE ??
4311	renderState = D3DRS_OUTPUTGAMMA;
4312	val = pRenderState[i].uintValue;
4313	*/
4314	break;
4315
4316	#if 0
4317
4318	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4319	//AssertFailed();
4320	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4321	val = pRenderState[i].uintValue;
4322	break;
4323
4324	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4325	renderState = D3DRS_TEXTUREFACTOR;
4326	val = pRenderState[i].uintValue;
4327	break;
4328
4329	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4330	renderState = D3DRS_LOCALVIEWER;
4331	val = pRenderState[i].uintValue;
4332	break;
4333
4334	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4335	AssertFailed();
4336	/*
4337	renderState = D3DRS_ZVISIBLE;
4338	val = pRenderState[i].uintValue;
4339	*/
4340	break;
4341
4342	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4343	renderState = D3DRS_CLIPPING;
4344	val = pRenderState[i].uintValue;
4345	break;
4346
4347	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4348	glTexParameter GL_TEXTURE_WRAP_S
4349	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4350	renderState = D3DRS_WRAP0;
4351	val = pRenderState[i].uintValue;
4352	break;
4353
4354	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4355	glTexParameter GL_TEXTURE_WRAP_T
4356	renderState = D3DRS_WRAP1;
4357	val = pRenderState[i].uintValue;
4358	break;
4359
4360	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4361	glTexParameter GL_TEXTURE_WRAP_R
4362	renderState = D3DRS_WRAP2;
4363	val = pRenderState[i].uintValue;
4364	break;
4365
4366
4367	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4368	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4369	val = pRenderState[i].uintValue;
4370	break;
4371
4372
4373	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4374	renderState = D3DRS_BLENDOPALPHA;
4375	val = pRenderState[i].uintValue;
4376	break;
4377
4378	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4379	AssertFailed();
4380	/*
4381	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4382	val = pRenderState[i].uintValue;
4383	*/
4384	break;
4385
4386	#endif
4387	default:
4388	AssertFailed();
4389	break;
4390	}
4391
4392	if (enableCap != ~(GLenum)0)
4393	{
4394	if (val)
4395	glEnable(enableCap);
4396	else
4397	glDisable(enableCap);
4398	}
4399	}
4400
4401	return VINF_SUCCESS;
4402	}
4403
4404	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4405	{
4406	PVMSVGA3DCONTEXT pContext;
4407	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4408	PVMSVGA3DSURFACE pRenderTarget;
4409
4410	AssertReturn(pState, VERR_NO_MEMORY);
4411	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4412
4413	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4414
4415	if ( cid >= pState->cContexts
4416	\|\| pState->papContexts[cid]->id != cid)
4417	{
4418	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4419	return VERR_INVALID_PARAMETER;
4420	}
4421	pContext = pState->papContexts[cid];
4422	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4423
4424	/* Save for vm state save/restore. */
4425	pContext->state.aRenderTargets[type] = target.sid;
4426
4427	if (target.sid == SVGA3D_INVALID_ID)
4428	{
4429	/* Disable render target. */
4430	switch (type)
4431	{
4432	case SVGA3D_RT_DEPTH:
4433	case SVGA3D_RT_STENCIL:
4434	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4435	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4436	break;
4437
4438	case SVGA3D_RT_COLOR0:
4439	case SVGA3D_RT_COLOR1:
4440	case SVGA3D_RT_COLOR2:
4441	case SVGA3D_RT_COLOR3:
4442	case SVGA3D_RT_COLOR4:
4443	case SVGA3D_RT_COLOR5:
4444	case SVGA3D_RT_COLOR6:
4445	case SVGA3D_RT_COLOR7:
4446	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4447	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4448	break;
4449
4450	default:
4451	AssertFailedReturn(VERR_INVALID_PARAMETER);
4452	}
4453	return VINF_SUCCESS;
4454	}
4455
4456	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4457	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4458	pRenderTarget = pState->papSurfaces[target.sid];
4459
4460	switch (type)
4461	{
4462	case SVGA3D_RT_DEPTH:
4463	case SVGA3D_RT_STENCIL:
4464	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4465	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4466	{
4467	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4468	pContext = &pState->SharedCtx;
4469	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4470
4471	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4472	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4473
4474	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4475	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4476
4477	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4478	pRenderTarget->internalFormatGL,
4479	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4480	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4481	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4482
4483	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4484	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4485
4486	pContext = pState->papContexts[cid];
4487	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4488	pRenderTarget->idWeakContextAssociation = cid;
4489	}
4490
4491	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4492	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4493	Assert(!pRenderTarget->fDirty);
4494	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4495
4496	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4497
4498	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4499	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4500	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4502	break;
4503
4504	case SVGA3D_RT_COLOR0:
4505	case SVGA3D_RT_COLOR1:
4506	case SVGA3D_RT_COLOR2:
4507	case SVGA3D_RT_COLOR3:
4508	case SVGA3D_RT_COLOR4:
4509	case SVGA3D_RT_COLOR5:
4510	case SVGA3D_RT_COLOR6:
4511	case SVGA3D_RT_COLOR7:
4512	{
4513	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4514	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4515	{
4516	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));
4517	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4518	AssertRCReturn(rc, rc);
4519	}
4520
4521	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4522	Assert(!pRenderTarget->fDirty);
4523
4524	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4525
4526	GLenum textarget;
4527	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
4528	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
4529	else
4530	textarget = GL_TEXTURE_2D;
4531	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
4532	textarget, pRenderTarget->oglId.texture, target.mipmap);
4533	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4534
4535	#ifdef DEBUG
4536	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4537	if (status != GL_FRAMEBUFFER_COMPLETE)
4538	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4539	#endif
4540	/** @todo use glDrawBuffers too? */
4541	break;
4542	}
4543
4544	default:
4545	AssertFailedReturn(VERR_INVALID_PARAMETER);
4546	}
4547
4548	return VINF_SUCCESS;
4549	}
4550
4551	#if 0
4552	/**
4553	* Convert SVGA texture combiner value to its D3D equivalent
4554	*/
4555	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4556	{
4557	switch (value)
4558	{
4559	case SVGA3D_TC_DISABLE:
4560	return D3DTOP_DISABLE;
4561	case SVGA3D_TC_SELECTARG1:
4562	return D3DTOP_SELECTARG1;
4563	case SVGA3D_TC_SELECTARG2:
4564	return D3DTOP_SELECTARG2;
4565	case SVGA3D_TC_MODULATE:
4566	return D3DTOP_MODULATE;
4567	case SVGA3D_TC_ADD:
4568	return D3DTOP_ADD;
4569	case SVGA3D_TC_ADDSIGNED:
4570	return D3DTOP_ADDSIGNED;
4571	case SVGA3D_TC_SUBTRACT:
4572	return D3DTOP_SUBTRACT;
4573	case SVGA3D_TC_BLENDTEXTUREALPHA:
4574	return D3DTOP_BLENDTEXTUREALPHA;
4575	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4576	return D3DTOP_BLENDDIFFUSEALPHA;
4577	case SVGA3D_TC_BLENDCURRENTALPHA:
4578	return D3DTOP_BLENDCURRENTALPHA;
4579	case SVGA3D_TC_BLENDFACTORALPHA:
4580	return D3DTOP_BLENDFACTORALPHA;
4581	case SVGA3D_TC_MODULATE2X:
4582	return D3DTOP_MODULATE2X;
4583	case SVGA3D_TC_MODULATE4X:
4584	return D3DTOP_MODULATE4X;
4585	case SVGA3D_TC_DSDT:
4586	AssertFailed(); /** @todo ??? */
4587	return D3DTOP_DISABLE;
4588	case SVGA3D_TC_DOTPRODUCT3:
4589	return D3DTOP_DOTPRODUCT3;
4590	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4591	return D3DTOP_BLENDTEXTUREALPHAPM;
4592	case SVGA3D_TC_ADDSIGNED2X:
4593	return D3DTOP_ADDSIGNED2X;
4594	case SVGA3D_TC_ADDSMOOTH:
4595	return D3DTOP_ADDSMOOTH;
4596	case SVGA3D_TC_PREMODULATE:
4597	return D3DTOP_PREMODULATE;
4598	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4599	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4600	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4601	return D3DTOP_MODULATECOLOR_ADDALPHA;
4602	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4603	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4604	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4605	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4606	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4607	return D3DTOP_BUMPENVMAPLUMINANCE;
4608	case SVGA3D_TC_MULTIPLYADD:
4609	return D3DTOP_MULTIPLYADD;
4610	case SVGA3D_TC_LERP:
4611	return D3DTOP_LERP;
4612	default:
4613	AssertFailed();
4614	return D3DTOP_DISABLE;
4615	}
4616	}
4617
4618	/**
4619	* Convert SVGA texture arg data value to its D3D equivalent
4620	*/
4621	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4622	{
4623	switch (value)
4624	{
4625	case SVGA3D_TA_CONSTANT:
4626	return D3DTA_CONSTANT;
4627	case SVGA3D_TA_PREVIOUS:
4628	return D3DTA_CURRENT; /* current = previous */
4629	case SVGA3D_TA_DIFFUSE:
4630	return D3DTA_DIFFUSE;
4631	case SVGA3D_TA_TEXTURE:
4632	return D3DTA_TEXTURE;
4633	case SVGA3D_TA_SPECULAR:
4634	return D3DTA_SPECULAR;
4635	default:
4636	AssertFailed();
4637	return 0;
4638	}
4639	}
4640
4641	/**
4642	* Convert SVGA texture transform flag value to its D3D equivalent
4643	*/
4644	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4645	{
4646	switch (value)
4647	{
4648	case SVGA3D_TEX_TRANSFORM_OFF:
4649	return D3DTTFF_DISABLE;
4650	case SVGA3D_TEX_TRANSFORM_S:
4651	return D3DTTFF_COUNT1; /** @todo correct? */
4652	case SVGA3D_TEX_TRANSFORM_T:
4653	return D3DTTFF_COUNT2; /** @todo correct? */
4654	case SVGA3D_TEX_TRANSFORM_R:
4655	return D3DTTFF_COUNT3; /** @todo correct? */
4656	case SVGA3D_TEX_TRANSFORM_Q:
4657	return D3DTTFF_COUNT4; /** @todo correct? */
4658	case SVGA3D_TEX_PROJECTED:
4659	return D3DTTFF_PROJECTED;
4660	default:
4661	AssertFailed();
4662	return 0;
4663	}
4664	}
4665	#endif
4666
4667	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4668	{
4669	switch (value)
4670	{
4671	case SVGA3D_TEX_ADDRESS_WRAP:
4672	return GL_REPEAT;
4673	case SVGA3D_TEX_ADDRESS_MIRROR:
4674	return GL_MIRRORED_REPEAT;
4675	case SVGA3D_TEX_ADDRESS_CLAMP:
4676	return GL_CLAMP_TO_EDGE;
4677	case SVGA3D_TEX_ADDRESS_BORDER:
4678	return GL_CLAMP_TO_BORDER;
4679	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4680	AssertFailed();
4681	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4682
4683	case SVGA3D_TEX_ADDRESS_EDGE:
4684	case SVGA3D_TEX_ADDRESS_INVALID:
4685	default:
4686	AssertFailed();
4687	return GL_REPEAT; /* default */
4688	}
4689	}
4690
4691	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4692	{
4693	switch (value)
4694	{
4695	case SVGA3D_TEX_FILTER_NONE:
4696	case SVGA3D_TEX_FILTER_LINEAR:
4697	return GL_LINEAR;
4698	case SVGA3D_TEX_FILTER_NEAREST:
4699	return GL_NEAREST;
4700	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4701	/** @todo */
4702	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4703	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4704	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4705	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4706	default:
4707	AssertFailed();
4708	return GL_LINEAR; /* default */
4709	}
4710	}
4711
4712	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4713	{
4714	/* flip the red and blue bytes */
4715	uint8_t blue = value & 0xff;
4716	uint8_t red = (value >> 16) & 0xff;
4717	return (value & 0xff00ff00) \| red \| (blue << 16);
4718	}
4719
4720	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4721	{
4722	GLenum val = ~(GLenum)0; /* Shut up MSC. */
4723	GLenum currentStage = ~(GLenum)0;
4724	PVMSVGA3DCONTEXT pContext;
4725	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4726	AssertReturn(pState, VERR_NO_MEMORY);
4727
4728	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4729
4730	if ( cid >= pState->cContexts
4731	\|\| pState->papContexts[cid]->id != cid)
4732	{
4733	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4734	return VERR_INVALID_PARAMETER;
4735	}
4736	pContext = pState->papContexts[cid];
4737	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4738
4739	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
4740	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
4741
4742	for (uint32_t i = 0; i < cTextureStates; ++i)
4743	{
4744	GLenum textureType = ~(GLenum)0;
4745	#if 0
4746	GLenum samplerType = ~(GLenum)0;
4747	#endif
4748
4749	LogFunc(("cid=%x stage=%d type=%s (%x) val=%x\n",
4750	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
4751
4752	/* Record the texture state for vm state saving. */
4753	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
4754	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
4755	{
4756	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
4757	}
4758
4759	/* Activate the right texture unit for subsequent texture state changes. */
4760	if (pTextureState[i].stage != currentStage \|\| i == 0)
4761	{
4762	/** @todo Is this the appropriate limit for all kinds of textures? It is the
4763	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
4764	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
4765	{
4766	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
4767	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4768	currentStage = pTextureState[i].stage;
4769	}
4770	else
4771	{
4772	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
4773	continue;
4774	}
4775
4776	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
4777	{
4778	int rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
4779	AssertRCReturn(rc, rc);
4780	}
4781	else
4782	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
4783	}
4784
4785	switch (pTextureState[i].name)
4786	{
4787	case SVGA3D_TS_BUMPENVMAT00: /* float */
4788	case SVGA3D_TS_BUMPENVMAT01: /* float */
4789	case SVGA3D_TS_BUMPENVMAT10: /* float */
4790	case SVGA3D_TS_BUMPENVMAT11: /* float */
4791	case SVGA3D_TS_BUMPENVLSCALE: /* float */
4792	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
4793	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
4794	break;
4795
4796	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
4797	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
4798	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
4799	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
4800	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
4801	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
4802	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
4803	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
4804	/** @todo not used by MesaGL */
4805	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
4806	break;
4807	#if 0
4808
4809	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
4810	textureType = D3DTSS_TEXCOORDINDEX;
4811	val = pTextureState[i].value;
4812	break;
4813
4814	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
4815	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
4816	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
4817	break;
4818	#endif
4819
4820	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
4821	{
4822	uint32_t const sid = pTextureState[i].value;
4823
4824	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x replacing sid=%x\n",
4825	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
4826
4827	/* Only is texture actually changed. */ /// @todo needs testing.
4828	if (pContext->aSidActiveTextures[currentStage] != sid)
4829	{
4830	if (pCurrentTextureSurface)
4831	{
4832	/* Unselect the currently associated texture. */
4833	glBindTexture(pCurrentTextureSurface->targetGL, 0);
4834	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4835
4836	/* Necessary for the fixed pipeline. */
4837	glDisable(pCurrentTextureSurface->targetGL);
4838	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4839
4840	pCurrentTextureSurface = NULL;
4841	}
4842
4843	if (sid == SVGA3D_INVALID_ID)
4844	{
4845	Assert(pCurrentTextureSurface == NULL);
4846	}
4847	else
4848	{
4849	PVMSVGA3DSURFACE pSurface;
4850	int rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
4851	AssertRCReturn(rc, rc);
4852
4853	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%x (%d,%d) replacing sid=%x\n",
4854	currentStage, sid, pSurface->pMipmapLevels[0].mipmapSize.width,
4855	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
4856
4857	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
4858	{
4859	Log(("CreateTexture (%d,%d) levels=%d\n",
4860	pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
4861	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
4862	AssertRCReturn(rc, rc);
4863	}
4864
4865	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
4866	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4867
4868	/* Necessary for the fixed pipeline. */
4869	glEnable(pSurface->targetGL);
4870	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4871
4872	/* Remember the currently active texture. */
4873	pCurrentTextureSurface = pSurface;
4874
4875	/* Recreate the texture state as glBindTexture resets them all (sigh). */
4876	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
4877	{
4878	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
4879	{
4880	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
4881
4882	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
4883	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
4884	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
4885	}
4886	}
4887	}
4888
4889	pContext->aSidActiveTextures[currentStage] = sid;
4890	}
4891
4892	/* Finished; continue with the next one. */
4893	continue;
4894	}
4895
4896	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
4897	textureType = GL_TEXTURE_WRAP_R; /* R = W */
4898	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4899	break;
4900
4901	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
4902	textureType = GL_TEXTURE_WRAP_S; /* S = U */
4903	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4904	break;
4905
4906	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
4907	textureType = GL_TEXTURE_WRAP_T; /* T = V */
4908	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
4909	break;
4910
4911	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
4912	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
4913	{
4914	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
4915	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
4916
4917	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
4918	textureType = GL_TEXTURE_MIN_FILTER;
4919	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
4920	{
4921	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
4922	{
4923	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4924	val = GL_NEAREST_MIPMAP_LINEAR;
4925	else
4926	val = GL_NEAREST_MIPMAP_NEAREST;
4927	}
4928	else
4929	{
4930	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
4931	val = GL_LINEAR_MIPMAP_LINEAR;
4932	else
4933	val = GL_LINEAR_MIPMAP_NEAREST;
4934	}
4935	}
4936	else
4937	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
4938	break;
4939	}
4940
4941	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
4942	textureType = GL_TEXTURE_MAG_FILTER;
4943	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
4944	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
4945	break;
4946
4947	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
4948	{
4949	GLfloat color[4]; /* red, green, blue, alpha */
4950	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
4951
4952	GLenum targetGL;
4953	if (pCurrentTextureSurface)
4954	targetGL = pCurrentTextureSurface->targetGL;
4955	else
4956	{
4957	/* No texture bound, assume 2D. */
4958	targetGL = GL_TEXTURE_2D;
4959	}
4960
4961	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
4962	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4963	break;
4964	}
4965
4966	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
4967	{
4968	GLenum targetGL;
4969	if (pCurrentTextureSurface)
4970	targetGL = pCurrentTextureSurface->targetGL;
4971	else
4972	{
4973	/* No texture bound, assume 2D. */
4974	targetGL = GL_TEXTURE_2D;
4975	}
4976
4977	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
4978	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4979	break;
4980	}
4981
4982	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
4983	textureType = GL_TEXTURE_BASE_LEVEL;
4984	val = pTextureState[i].value;
4985	break;
4986
4987	#if 0
4988	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
4989	samplerType = D3DSAMP_MAXANISOTROPY;
4990	val = pTextureState[i].value; /* Identical?? */
4991	break;
4992
4993	case SVGA3D_TS_GAMMA: /* float */
4994	samplerType = D3DSAMP_SRGBTEXTURE;
4995	/* Boolean in D3D */
4996	if (pTextureState[i].floatValue == 1.0f)
4997	val = FALSE;
4998	else
4999	val = TRUE;
5000	break;
5001	#endif
5002	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5003	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5004	AssertFailed();
5005	break;
5006
5007	default:
5008	//AssertFailed();
5009	break;
5010	}
5011
5012	if (textureType != ~(GLenum)0)
5013	{
5014	GLenum targetGL;
5015	if (pCurrentTextureSurface)
5016	targetGL = pCurrentTextureSurface->targetGL;
5017	else
5018	{
5019	/* No texture bound, assume 2D. */
5020	targetGL = GL_TEXTURE_2D;
5021	}
5022
5023	glTexParameteri(targetGL, textureType, val);
5024	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5025	}
5026	}
5027
5028	return VINF_SUCCESS;
5029	}
5030
5031	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5032	{
5033	PVMSVGA3DCONTEXT pContext;
5034	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5035	AssertReturn(pState, VERR_NO_MEMORY);
5036	GLenum oglFace;
5037
5038	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5039
5040	if ( cid >= pState->cContexts
5041	\|\| pState->papContexts[cid]->id != cid)
5042	{
5043	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5044	return VERR_INVALID_PARAMETER;
5045	}
5046	pContext = pState->papContexts[cid];
5047	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5048
5049	switch (face)
5050	{
5051	case SVGA3D_FACE_NONE:
5052	case SVGA3D_FACE_FRONT:
5053	oglFace = GL_FRONT;
5054	break;
5055
5056	case SVGA3D_FACE_BACK:
5057	oglFace = GL_BACK;
5058	break;
5059
5060	case SVGA3D_FACE_FRONT_BACK:
5061	oglFace = GL_FRONT_AND_BACK;
5062	break;
5063
5064	default:
5065	AssertFailedReturn(VERR_INVALID_PARAMETER);
5066	}
5067
5068	/* Save for vm state save/restore. */
5069	pContext->state.aMaterial[face].fValid = true;
5070	pContext->state.aMaterial[face].material = *pMaterial;
5071	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5072
5073	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5074	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5075	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5076	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5077	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5079
5080	return VINF_SUCCESS;
5081	}
5082
5083	/** @todo Move into separate library as we are using logic from Wine here. */
5084	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5085	{
5086	PVMSVGA3DCONTEXT pContext;
5087	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5088	AssertReturn(pState, VERR_NO_MEMORY);
5089	float QuadAttenuation;
5090
5091	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5092
5093	if ( cid >= pState->cContexts
5094	\|\| pState->papContexts[cid]->id != cid)
5095	{
5096	Log(("vmsvga3dSetLightData invalid context id!\n"));
5097	return VERR_INVALID_PARAMETER;
5098	}
5099	pContext = pState->papContexts[cid];
5100	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5101
5102	/* Store for vm state save/restore */
5103	if (index < SVGA3D_MAX_LIGHTS)
5104	{
5105	pContext->state.aLightData[index].fValidData = true;
5106	pContext->state.aLightData[index].data = *pData;
5107	}
5108	else
5109	AssertFailed();
5110
5111	if ( pData->attenuation0 < 0.0f
5112	\|\| pData->attenuation1 < 0.0f
5113	\|\| pData->attenuation2 < 0.0f)
5114	{
5115	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5116	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5117	}
5118
5119	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5120	glMatrixMode(GL_MODELVIEW);
5121	glPushMatrix();
5122	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5123
5124	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5125	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5126	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5127
5128	if (pData->range * pData->range >= FLT_MIN)
5129	QuadAttenuation = 1.4f / (pData->range * pData->range);
5130	else
5131	QuadAttenuation = 0.0f;
5132
5133	switch (pData->type)
5134	{
5135	case SVGA3D_LIGHTTYPE_POINT:
5136	{
5137	GLfloat position[4];
5138
5139	position[0] = pData->position[0];
5140	position[1] = pData->position[1];
5141	position[2] = pData->position[2];
5142	position[3] = 1.0f;
5143
5144	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5145	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5146
5147	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5148	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5149
5150	/* Attenuation - Are these right? guessing... */
5151	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5152	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5153
5154	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5155	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5156
5157	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5158	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5159
5160	/** @todo range */
5161	break;
5162	}
5163
5164	case SVGA3D_LIGHTTYPE_SPOT1:
5165	{
5166	GLfloat exponent;
5167	GLfloat position[4];
5168	const GLfloat pi = 4.0f * atanf(1.0f);
5169
5170	position[0] = pData->position[0];
5171	position[1] = pData->position[1];
5172	position[2] = pData->position[2];
5173	position[3] = 1.0f;
5174
5175	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5176	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5177
5178	position[0] = pData->direction[0];
5179	position[1] = pData->direction[1];
5180	position[2] = pData->direction[2];
5181	position[3] = 1.0f;
5182
5183	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5184	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5185
5186	/*
5187	* opengl-ish and d3d-ish spot lights use too different models for the
5188	* light "intensity" as a function of the angle towards the main light direction,
5189	* so we only can approximate very roughly.
5190	* however spot lights are rather rarely used in games (if ever used at all).
5191	* furthermore if still used, probably nobody pays attention to such details.
5192	*/
5193	if (pData->falloff == 0)
5194	{
5195	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5196	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5197	* will always be 1.0 for both of them, and we don't have to care for the
5198	* rest of the rather complex calculation
5199	*/
5200	exponent = 0.0f;
5201	}
5202	else
5203	{
5204	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5205	if (rho < 0.0001f)
5206	rho = 0.0001f;
5207	exponent = -0.3f/log(cos(rho/2));
5208	}
5209	if (exponent > 128.0f)
5210	exponent = 128.0f;
5211
5212	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5213	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5214
5215	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5216	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5217
5218	/* Attenuation - Are these right? guessing... */
5219	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5220	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5221
5222	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5223	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5224
5225	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5226	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5227
5228	/** @todo range */
5229	break;
5230	}
5231
5232	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5233	{
5234	GLfloat position[4];
5235
5236	position[0] = -pData->direction[0];
5237	position[1] = -pData->direction[1];
5238	position[2] = -pData->direction[2];
5239	position[3] = 0.0f;
5240
5241	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5242	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5243
5244	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5245	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5246
5247	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5248	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5249	break;
5250	}
5251
5252	case SVGA3D_LIGHTTYPE_SPOT2:
5253	default:
5254	Log(("Unsupported light type!!\n"));
5255	return VERR_INVALID_PARAMETER;
5256	}
5257
5258	/* Restore the modelview matrix */
5259	glPopMatrix();
5260
5261	return VINF_SUCCESS;
5262	}
5263
5264	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5265	{
5266	PVMSVGA3DCONTEXT pContext;
5267	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5268	AssertReturn(pState, VERR_NO_MEMORY);
5269
5270	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5271
5272	if ( cid >= pState->cContexts
5273	\|\| pState->papContexts[cid]->id != cid)
5274	{
5275	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5276	return VERR_INVALID_PARAMETER;
5277	}
5278	pContext = pState->papContexts[cid];
5279	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5280
5281	/* Store for vm state save/restore */
5282	if (index < SVGA3D_MAX_LIGHTS)
5283	pContext->state.aLightData[index].fEnabled = !!enabled;
5284	else
5285	AssertFailed();
5286
5287	if (enabled)
5288	{
5289	/* Load the default settings if none have been set yet. */
5290	if (!pContext->state.aLightData[index].fValidData)
5291	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5292	glEnable(GL_LIGHT0 + index);
5293	}
5294	else
5295	glDisable(GL_LIGHT0 + index);
5296
5297	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5298	return VINF_SUCCESS;
5299	}
5300
5301	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5302	{
5303	PVMSVGA3DCONTEXT pContext;
5304	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5305	AssertReturn(pState, VERR_NO_MEMORY);
5306
5307	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5308
5309	if ( cid >= pState->cContexts
5310	\|\| pState->papContexts[cid]->id != cid)
5311	{
5312	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5313	return VERR_INVALID_PARAMETER;
5314	}
5315	pContext = pState->papContexts[cid];
5316	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5317
5318	/* Save for vm state save/restore. */
5319	pContext->state.RectViewPort = *pRect;
5320	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5321
5322	/** @todo y-inversion for partial viewport coordinates? */
5323	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5324	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5325
5326	/* Reset the projection matrix as that relies on the viewport setting. */
5327	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5328	{
5329	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5330	}
5331	else
5332	{
5333	float matrix[16];
5334
5335	/* identity matrix if no matrix set. */
5336	memset(matrix, 0, sizeof(matrix));
5337	matrix[0] = 1.0;
5338	matrix[5] = 1.0;
5339	matrix[10] = 1.0;
5340	matrix[15] = 1.0;
5341	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5342	}
5343
5344	return VINF_SUCCESS;
5345	}
5346
5347	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5348	{
5349	PVMSVGA3DCONTEXT pContext;
5350	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5351	AssertReturn(pState, VERR_NO_MEMORY);
5352	double oglPlane[4];
5353
5354	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)));
5355	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5356
5357	if ( cid >= pState->cContexts
5358	\|\| pState->papContexts[cid]->id != cid)
5359	{
5360	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5361	return VERR_INVALID_PARAMETER;
5362	}
5363	pContext = pState->papContexts[cid];
5364	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5365
5366	/* Store for vm state save/restore. */
5367	pContext->state.aClipPlane[index].fValid = true;
5368	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5369
5370	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5371	oglPlane[0] = (double)plane[0];
5372	oglPlane[1] = (double)plane[1];
5373	oglPlane[2] = (double)plane[2];
5374	oglPlane[3] = (double)plane[3];
5375
5376	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5377	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5378
5379	return VINF_SUCCESS;
5380	}
5381
5382	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5383	{
5384	PVMSVGA3DCONTEXT pContext;
5385	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5386	AssertReturn(pState, VERR_NO_MEMORY);
5387
5388	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5389
5390	if ( cid >= pState->cContexts
5391	\|\| pState->papContexts[cid]->id != cid)
5392	{
5393	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5394	return VERR_INVALID_PARAMETER;
5395	}
5396	pContext = pState->papContexts[cid];
5397	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5398
5399	/* Store for vm state save/restore. */
5400	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5401	pContext->state.RectScissor = *pRect;
5402
5403	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5404	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5405
5406	return VINF_SUCCESS;
5407	}
5408
5409	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5410	{
5411	/* Convert byte color components to float (0-1.0) */
5412	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5413	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5414	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5415	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5416	}
5417
5418	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5419	uint32_t cRects, SVGA3dRect *pRect)
5420	{
5421	GLbitfield mask = 0;
5422	PVMSVGA3DCONTEXT pContext;
5423	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5424	AssertReturn(pState, VERR_NO_MEMORY);
5425	GLboolean fDepthWriteEnabled = GL_FALSE;
5426
5427	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));
5428
5429	if ( cid >= pState->cContexts
5430	\|\| pState->papContexts[cid]->id != cid)
5431	{
5432	Log(("vmsvga3dCommandClear invalid context id!\n"));
5433	return VERR_INVALID_PARAMETER;
5434	}
5435	pContext = pState->papContexts[cid];
5436	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5437
5438	if (clearFlag & SVGA3D_CLEAR_COLOR)
5439	{
5440	GLfloat red, green, blue, alpha;
5441
5442	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5443
5444	/* Set the color clear value. */
5445	glClearColor(red, green, blue, alpha);
5446
5447	mask \|= GL_COLOR_BUFFER_BIT;
5448	}
5449	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5450	{
5451	/** @todo possibly the same problem as with glDepthMask */
5452	glClearStencil(stencil);
5453	mask \|= GL_STENCIL_BUFFER_BIT;
5454	}
5455	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5456	{
5457	glClearDepth((GLdouble)depth);
5458	mask \|= GL_DEPTH_BUFFER_BIT;
5459
5460	/* glClear will not clear the depth buffer if writing is disabled. */
5461	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5462	if (fDepthWriteEnabled == GL_FALSE)
5463	glDepthMask(GL_TRUE);
5464	}
5465
5466	if (cRects)
5467	{
5468	/* Save the current scissor test bit and scissor box. */
5469	glPushAttrib(GL_SCISSOR_BIT);
5470	glEnable(GL_SCISSOR_TEST);
5471	for (unsigned i=0; i < cRects; i++)
5472	{
5473	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));
5474	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5475	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5476	glClear(mask);
5477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5478	}
5479	/* Restore the old scissor test bit and box */
5480	glPopAttrib();
5481	}
5482	else
5483	{
5484	glClear(mask);
5485	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5486	}
5487
5488	/* Restore depth write state. */
5489	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5490	&& fDepthWriteEnabled == GL_FALSE)
5491	glDepthMask(GL_FALSE);
5492
5493	return VINF_SUCCESS;
5494	}
5495
5496	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5497	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5498	{
5499	normalized = GL_FALSE;
5500	switch (identity.type)
5501	{
5502	case SVGA3D_DECLTYPE_FLOAT1:
5503	size = 1;
5504	type = GL_FLOAT;
5505	break;
5506	case SVGA3D_DECLTYPE_FLOAT2:
5507	size = 2;
5508	type = GL_FLOAT;
5509	break;
5510	case SVGA3D_DECLTYPE_FLOAT3:
5511	size = 3;
5512	type = GL_FLOAT;
5513	break;
5514	case SVGA3D_DECLTYPE_FLOAT4:
5515	size = 4;
5516	type = GL_FLOAT;
5517	break;
5518
5519	case SVGA3D_DECLTYPE_D3DCOLOR:
5520	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5521	type = GL_UNSIGNED_BYTE;
5522	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5523	break;
5524
5525	case SVGA3D_DECLTYPE_UBYTE4N:
5526	normalized = GL_TRUE;
5527	RT_FALL_THRU();
5528	case SVGA3D_DECLTYPE_UBYTE4:
5529	size = 4;
5530	type = GL_UNSIGNED_BYTE;
5531	break;
5532
5533	case SVGA3D_DECLTYPE_SHORT2N:
5534	normalized = GL_TRUE;
5535	RT_FALL_THRU();
5536	case SVGA3D_DECLTYPE_SHORT2:
5537	size = 2;
5538	type = GL_SHORT;
5539	break;
5540
5541	case SVGA3D_DECLTYPE_SHORT4N:
5542	normalized = GL_TRUE;
5543	RT_FALL_THRU();
5544	case SVGA3D_DECLTYPE_SHORT4:
5545	size = 4;
5546	type = GL_SHORT;
5547	break;
5548
5549	case SVGA3D_DECLTYPE_USHORT4N:
5550	normalized = GL_TRUE;
5551	size = 4;
5552	type = GL_UNSIGNED_SHORT;
5553	break;
5554
5555	case SVGA3D_DECLTYPE_USHORT2N:
5556	normalized = GL_TRUE;
5557	size = 2;
5558	type = GL_UNSIGNED_SHORT;
5559	break;
5560
5561	case SVGA3D_DECLTYPE_UDEC3:
5562	size = 3;
5563	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5564	break;
5565
5566	case SVGA3D_DECLTYPE_DEC3N:
5567	normalized = true;
5568	size = 3;
5569	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5570	break;
5571
5572	case SVGA3D_DECLTYPE_FLOAT16_2:
5573	size = 2;
5574	type = GL_HALF_FLOAT;
5575	break;
5576	case SVGA3D_DECLTYPE_FLOAT16_4:
5577	size = 4;
5578	type = GL_HALF_FLOAT;
5579	break;
5580	default:
5581	AssertFailedReturn(VERR_INVALID_PARAMETER);
5582	}
5583
5584	//pVertexElement->Method = identity.method;
5585	//pVertexElement->Usage = identity.usage;
5586
5587	return VINF_SUCCESS;
5588	}
5589
5590	/* Convert VMWare primitive type to its OpenGL equivalent. */
5591	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5592	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5593	{
5594	switch (PrimitiveType)
5595	{
5596	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5597	*pMode = GL_TRIANGLES;
5598	pcVertices = cPrimitiveCount 3;
5599	break;
5600	case SVGA3D_PRIMITIVE_POINTLIST:
5601	*pMode = GL_POINTS;
5602	*pcVertices = cPrimitiveCount;
5603	break;
5604	case SVGA3D_PRIMITIVE_LINELIST:
5605	*pMode = GL_LINES;
5606	pcVertices = cPrimitiveCount 2;
5607	break;
5608	case SVGA3D_PRIMITIVE_LINESTRIP:
5609	*pMode = GL_LINE_STRIP;
5610	*pcVertices = cPrimitiveCount + 1;
5611	break;
5612	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5613	*pMode = GL_TRIANGLE_STRIP;
5614	*pcVertices = cPrimitiveCount + 2;
5615	break;
5616	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5617	*pMode = GL_TRIANGLE_FAN;
5618	*pcVertices = cPrimitiveCount + 2;
5619	break;
5620	default:
5621	return VERR_INVALID_PARAMETER;
5622	}
5623	return VINF_SUCCESS;
5624	}
5625
5626	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5627	{
5628	int rc;
5629
5630	/* Reset the view matrix (also takes the world matrix into account). */
5631	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5632	{
5633	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5634	}
5635	else
5636	{
5637	float matrix[16];
5638
5639	/* identity matrix if no matrix set. */
5640	memset(matrix, 0, sizeof(matrix));
5641	matrix[0] = 1.0;
5642	matrix[5] = 1.0;
5643	matrix[10] = 1.0;
5644	matrix[15] = 1.0;
5645	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5646	}
5647
5648	/* Reset the projection matrix. */
5649	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5650	{
5651	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5652	}
5653	else
5654	{
5655	float matrix[16];
5656
5657	/* identity matrix if no matrix set. */
5658	memset(matrix, 0, sizeof(matrix));
5659	matrix[0] = 1.0;
5660	matrix[5] = 1.0;
5661	matrix[10] = 1.0;
5662	matrix[15] = 1.0;
5663	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5664	}
5665	AssertRC(rc);
5666	return rc;
5667	}
5668
5669	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext,
5670	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
5671	SVGA3dVertexDecl pVertexDecl, SVGA3dVertexDivisor const paVertexDivisors)
5672	{
5673	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5674	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5675	PVMSVGA3DSURFACE pVertexSurface;
5676
5677	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5678	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5679
5680	pVertexSurface = pState->papSurfaces[sidVertex];
5681	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5682
5683	/* Create and/or bind the vertex buffer. */
5684	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5685	{
5686	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5687	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5688	pContext = &pState->SharedCtx;
5689	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5690
5691	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5692	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5693
5694	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5695	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5696
5697	Assert(pVertexSurface->fDirty);
5698	/** @todo rethink usage dynamic/static */
5699	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5700	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5701
5702	pVertexSurface->pMipmapLevels[0].fDirty = false;
5703	pVertexSurface->fDirty = false;
5704
5705	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5706
5707	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5708	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5709
5710	pContext = pSavedCtx;
5711	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5712	}
5713
5714	Assert(pVertexSurface->fDirty == false);
5715	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5717
5718	/* Setup the vertex declarations. */
5719	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5720	{
5721	GLint size;
5722	GLenum type;
5723	GLboolean normalized;
5724	GLuint index = iVertexDeclBase + iVertex;
5725
5726	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));
5727
5728	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5729	AssertRCReturn(rc, rc);
5730
5731	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5732	{
5733	/* Use numbered vertex arrays when shaders are active. */
5734	pState->ext.glEnableVertexAttribArray(index);
5735	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5736	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5737	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5738	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5739
5740	GLuint const divisor = paVertexDivisors && paVertexDivisors[index].s.instanceData ? 1 : 0;
5741	pState->ext.glVertexAttribDivisor(index, divisor);
5742	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5743
5744	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5745	}
5746	else
5747	{
5748	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5749	switch (pVertexDecl[iVertex].identity.usage)
5750	{
5751	case SVGA3D_DECLUSAGE_POSITIONT:
5752	case SVGA3D_DECLUSAGE_POSITION:
5753	{
5754	glEnableClientState(GL_VERTEX_ARRAY);
5755	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5756	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5757	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5758	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5759	break;
5760	}
5761	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5762	AssertFailed();
5763	break;
5764	case SVGA3D_DECLUSAGE_BLENDINDICES:
5765	AssertFailed();
5766	break;
5767	case SVGA3D_DECLUSAGE_NORMAL:
5768	glEnableClientState(GL_NORMAL_ARRAY);
5769	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5770	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5771	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5772	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5773	break;
5774	case SVGA3D_DECLUSAGE_PSIZE:
5775	AssertFailed();
5776	break;
5777	case SVGA3D_DECLUSAGE_TEXCOORD:
5778	/* Specify the affected texture unit. */
5779	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5780	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5781	#else
5782	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5783	#endif
5784	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5785	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5786	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5787	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5788	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5789	break;
5790	case SVGA3D_DECLUSAGE_TANGENT:
5791	AssertFailed();
5792	break;
5793	case SVGA3D_DECLUSAGE_BINORMAL:
5794	AssertFailed();
5795	break;
5796	case SVGA3D_DECLUSAGE_TESSFACTOR:
5797	AssertFailed();
5798	break;
5799	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5800	glEnableClientState(GL_COLOR_ARRAY);
5801	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5802	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5803	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5804	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5805	break;
5806	case SVGA3D_DECLUSAGE_FOG:
5807	glEnableClientState(GL_FOG_COORD_ARRAY);
5808	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5809	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5810	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5811	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5812	break;
5813	case SVGA3D_DECLUSAGE_DEPTH:
5814	AssertFailed();
5815	break;
5816	case SVGA3D_DECLUSAGE_SAMPLE:
5817	AssertFailed();
5818	break;
5819	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5820	}
5821	}
5822
5823	#ifdef LOG_ENABLED
5824	if (pVertexDecl[iVertex].array.stride == 0)
5825	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5826	#endif
5827	}
5828
5829	return VINF_SUCCESS;
5830	}
5831
5832	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5833	{
5834	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5835
5836	/* Clean up the vertex declarations. */
5837	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5838	{
5839	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
5840	{
5841	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
5842	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
5843	vmsvga3dResetTransformMatrices(pThis, pContext);
5844	}
5845
5846	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5847	{
5848	/* Use numbered vertex arrays when shaders are active. */
5849	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5850	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5851	}
5852	else
5853	{
5854	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5855	switch (pVertexDecl[iVertex].identity.usage)
5856	{
5857	case SVGA3D_DECLUSAGE_POSITION:
5858	case SVGA3D_DECLUSAGE_POSITIONT:
5859	glDisableClientState(GL_VERTEX_ARRAY);
5860	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5861	break;
5862	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5863	break;
5864	case SVGA3D_DECLUSAGE_BLENDINDICES:
5865	break;
5866	case SVGA3D_DECLUSAGE_NORMAL:
5867	glDisableClientState(GL_NORMAL_ARRAY);
5868	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5869	break;
5870	case SVGA3D_DECLUSAGE_PSIZE:
5871	break;
5872	case SVGA3D_DECLUSAGE_TEXCOORD:
5873	/* Specify the affected texture unit. */
5874	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5875	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5876	#else
5877	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5878	#endif
5879	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
5880	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5881	break;
5882	case SVGA3D_DECLUSAGE_TANGENT:
5883	break;
5884	case SVGA3D_DECLUSAGE_BINORMAL:
5885	break;
5886	case SVGA3D_DECLUSAGE_TESSFACTOR:
5887	break;
5888	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
5889	glDisableClientState(GL_COLOR_ARRAY);
5890	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5891	break;
5892	case SVGA3D_DECLUSAGE_FOG:
5893	glDisableClientState(GL_FOG_COORD_ARRAY);
5894	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5895	break;
5896	case SVGA3D_DECLUSAGE_DEPTH:
5897	break;
5898	case SVGA3D_DECLUSAGE_SAMPLE:
5899	break;
5900	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5901	}
5902	}
5903	}
5904	/* Unbind the vertex buffer after usage. */
5905	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
5906	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5907	return VINF_SUCCESS;
5908	}
5909
5910	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
5911	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
5912	SVGA3dVertexDivisor *pVertexDivisor)
5913	{
5914	RT_NOREF(pVertexDivisor);
5915	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5916	AssertReturn(pState, VERR_INTERNAL_ERROR);
5917	PVMSVGA3DCONTEXT pContext;
5918	int rc = VERR_NOT_IMPLEMENTED;
5919	uint32_t iCurrentVertex;
5920
5921	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
5922
5923	/* Caller already check these, but it cannot hurt to check again... */
5924	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
5925	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
5926	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
5927
5928	if (!cVertexDivisor)
5929	pVertexDivisor = NULL; /* Be sure. */
5930
5931	if ( cid >= pState->cContexts
5932	\|\| pState->papContexts[cid]->id != cid)
5933	{
5934	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
5935	return VERR_INVALID_PARAMETER;
5936	}
5937	pContext = pState->papContexts[cid];
5938	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5939
5940	/* Check for pretransformed vertex declarations. */
5941	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5942	{
5943	switch (pVertexDecl[iVertex].identity.usage)
5944	{
5945	case SVGA3D_DECLUSAGE_POSITIONT:
5946	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
5947	RT_FALL_THRU();
5948	case SVGA3D_DECLUSAGE_POSITION:
5949	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
5950	pContext->state.RectViewPort.h,
5951	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
5952	break;
5953	default: /* Shut up MSC. */ break;
5954	}
5955	}
5956
5957	/* Try to figure out if instancing is used.
5958	* Support simple instancing case with one set of indexed data and one set per-instance data.
5959	*/
5960	uint32_t cInstances = 0;
5961	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
5962	{
5963	if (pVertexDivisor[iVertexDivisor].s.indexedData)
5964	{
5965	if (cInstances == 0)
5966	cInstances = pVertexDivisor[iVertexDivisor].s.count;
5967	else
5968	Assert(cInstances == pVertexDivisor[iVertexDivisor].s.count);
5969	}
5970	else if (pVertexDivisor[iVertexDivisor].s.instanceData)
5971	{
5972	Assert(pVertexDivisor[iVertexDivisor].s.count == 1);
5973	}
5974	}
5975
5976	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
5977	if (pContext->pShaderContext)
5978	{
5979	uint32_t rtHeight = 0;
5980
5981	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
5982	{
5983	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
5984	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
5985	}
5986
5987	ShaderUpdateState(pContext->pShaderContext, rtHeight);
5988	}
5989
5990	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
5991	iCurrentVertex = 0;
5992	while (iCurrentVertex < numVertexDecls)
5993	{
5994	uint32_t sidVertex = SVGA_ID_INVALID;
5995	uint32_t iVertex;
5996
5997	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
5998	{
5999	if ( sidVertex != SVGA_ID_INVALID
6000	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6001	)
6002	break;
6003	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6004	}
6005
6006	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex,
6007	&pVertexDecl[iCurrentVertex], pVertexDivisor);
6008	AssertRCReturn(rc, rc);
6009
6010	iCurrentVertex = iVertex;
6011	}
6012
6013	/* Now draw the primitives. */
6014	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6015	{
6016	GLenum modeDraw;
6017	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6018	PVMSVGA3DSURFACE pIndexSurface = NULL;
6019	unsigned cVertices;
6020
6021	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6022	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6023	if (RT_FAILURE(rc))
6024	{
6025	AssertRC(rc);
6026	goto internal_error;
6027	}
6028
6029	if (sidIndex != SVGA3D_INVALID_ID)
6030	{
6031	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6032
6033	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6034	\|\| sidIndex >= pState->cSurfaces
6035	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6036	{
6037	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6038	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6039	rc = VERR_INVALID_PARAMETER;
6040	goto internal_error;
6041	}
6042	pIndexSurface = pState->papSurfaces[sidIndex];
6043	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6044
6045	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6046	{
6047	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6048	pContext = &pState->SharedCtx;
6049	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6050
6051	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6053
6054	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6055	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6056
6057	Assert(pIndexSurface->fDirty);
6058
6059	/** @todo rethink usage dynamic/static */
6060	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6061	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6062
6063	pIndexSurface->pMipmapLevels[0].fDirty = false;
6064	pIndexSurface->fDirty = false;
6065
6066	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6067
6068	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6069	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6070
6071	pContext = pState->papContexts[cid];
6072	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6073	}
6074	Assert(pIndexSurface->fDirty == false);
6075
6076	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6077	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6078	}
6079
6080	if (!pIndexSurface)
6081	{
6082	/* Render without an index buffer */
6083	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6084	if (cInstances == 0)
6085	{
6086	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6087	}
6088	else
6089	{
6090	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
6091	}
6092	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6093	}
6094	else
6095	{
6096	GLenum indexType;
6097
6098	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6099	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6100
6101	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6102	{
6103	indexType = GL_UNSIGNED_BYTE;
6104	}
6105	else
6106	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6107	{
6108	indexType = GL_UNSIGNED_SHORT;
6109	}
6110	else
6111	{
6112	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6113	indexType = GL_UNSIGNED_INT;
6114	}
6115
6116	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));
6117	if (cInstances == 0)
6118	{
6119	/* Render with an index buffer */
6120	if (pRange[iPrimitive].indexBias == 0)
6121	glDrawElements(modeDraw,
6122	cVertices,
6123	indexType,
6124	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6125	else
6126	pState->ext.glDrawElementsBaseVertex(modeDraw,
6127	cVertices,
6128	indexType,
6129	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6130	pRange[iPrimitive].indexBias); /* basevertex */
6131	}
6132	else
6133	{
6134	/* Render with an index buffer */
6135	if (pRange[iPrimitive].indexBias == 0)
6136	pState->ext.glDrawElementsInstanced(modeDraw,
6137	cVertices,
6138	indexType,
6139	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6140	cInstances);
6141	else
6142	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
6143	cVertices,
6144	indexType,
6145	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6146	cInstances,
6147	pRange[iPrimitive].indexBias); /* basevertex */
6148	}
6149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6150
6151	/* Unbind the index buffer after usage. */
6152	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6153	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6154	}
6155	}
6156
6157	internal_error:
6158
6159	/* Deactivate the vertex declarations. */
6160	iCurrentVertex = 0;
6161	while (iCurrentVertex < numVertexDecls)
6162	{
6163	uint32_t sidVertex = SVGA_ID_INVALID;
6164	uint32_t iVertex;
6165
6166	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6167	{
6168	if ( sidVertex != SVGA_ID_INVALID
6169	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6170	)
6171	break;
6172	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6173	}
6174
6175	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6176	AssertRCReturn(rc, rc);
6177
6178	iCurrentVertex = iVertex;
6179	}
6180	#ifdef DEBUG
6181	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
6182	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
6183	{
6184	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6185	{
6186	PVMSVGA3DSURFACE pTexture;
6187	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
6188	AssertContinue(RT_SUCCESS(rc2));
6189
6190	GLint activeTextureUnit = 0;
6191	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6192	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6193
6194	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6195	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6196
6197	GLint activeTexture = 0;
6198	glGetIntegerv(pTexture->bindingGL, &activeTexture);
6199	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6200
6201	pState->ext.glActiveTexture(activeTextureUnit);
6202	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6203
6204	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6205	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6206	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6207	}
6208	}
6209	#endif
6210
6211	#ifdef DEBUG_GFX_WINDOW
6212	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0])
6213	{
6214	SVGA3dCopyRect rect;
6215
6216	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6217	rect.w = pContext->state.RectViewPort.w;
6218	rect.h = pContext->state.RectViewPort.h;
6219	vmsvga3dCommandPresent(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], 0, NULL);
6220	}
6221	#endif
6222
6223	#if 0
6224	/* Dump render target to a bitmap. */
6225	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
6226	{
6227	vmsvga3dUpdateHeapBuffersForSurfaces(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
6228	PVMSVGA3DSURFACE pSurface;
6229	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
6230	if (RT_SUCCESS(rc2))
6231	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmp", "rt", "-post");
6232	}
6233	#endif
6234
6235	return rc;
6236	}
6237
6238
6239	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6240	{
6241	PVMSVGA3DCONTEXT pContext;
6242	PVMSVGA3DSHADER pShader;
6243	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6244	AssertReturn(pState, VERR_NO_MEMORY);
6245	int rc;
6246
6247	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6248	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6249
6250	if ( cid >= pState->cContexts
6251	\|\| pState->papContexts[cid]->id != cid)
6252	{
6253	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6254	return VERR_INVALID_PARAMETER;
6255	}
6256	pContext = pState->papContexts[cid];
6257	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6258
6259	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6260	if (type == SVGA3D_SHADERTYPE_VS)
6261	{
6262	if (shid >= pContext->cVertexShaders)
6263	{
6264	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6265	AssertReturn(pvNew, VERR_NO_MEMORY);
6266	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6267	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6268	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6269	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6270	pContext->cVertexShaders = shid + 1;
6271	}
6272	/* If one already exists with this id, then destroy it now. */
6273	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6274	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6275
6276	pShader = &pContext->paVertexShader[shid];
6277	}
6278	else
6279	{
6280	Assert(type == SVGA3D_SHADERTYPE_PS);
6281	if (shid >= pContext->cPixelShaders)
6282	{
6283	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6284	AssertReturn(pvNew, VERR_NO_MEMORY);
6285	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6286	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6287	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6288	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6289	pContext->cPixelShaders = shid + 1;
6290	}
6291	/* If one already exists with this id, then destroy it now. */
6292	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6293	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6294
6295	pShader = &pContext->paPixelShader[shid];
6296	}
6297
6298	memset(pShader, 0, sizeof(*pShader));
6299	pShader->id = shid;
6300	pShader->cid = cid;
6301	pShader->type = type;
6302	pShader->cbData = cbData;
6303	pShader->pShaderProgram = RTMemAllocZ(cbData);
6304	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6305	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6306
6307	#ifdef DUMP_SHADER_DISASSEMBLY
6308	LPD3DXBUFFER pDisassembly;
6309	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6310	if (hr == D3D_OK)
6311	{
6312	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6313	pDisassembly->Release();
6314	}
6315	#endif
6316
6317	switch (type)
6318	{
6319	case SVGA3D_SHADERTYPE_VS:
6320	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6321	break;
6322
6323	case SVGA3D_SHADERTYPE_PS:
6324	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6325	break;
6326
6327	default:
6328	AssertFailedReturn(VERR_INVALID_PARAMETER);
6329	}
6330	if (rc != VINF_SUCCESS)
6331	{
6332	RTMemFree(pShader->pShaderProgram);
6333	memset(pShader, 0, sizeof(*pShader));
6334	pShader->id = SVGA3D_INVALID_ID;
6335	}
6336
6337	return rc;
6338	}
6339
6340	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6341	{
6342	PVMSVGA3DCONTEXT pContext;
6343	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6344	AssertReturn(pState, VERR_NO_MEMORY);
6345	PVMSVGA3DSHADER pShader = NULL;
6346	int rc;
6347
6348	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6349
6350	if ( cid >= pState->cContexts
6351	\|\| pState->papContexts[cid]->id != cid)
6352	{
6353	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6354	return VERR_INVALID_PARAMETER;
6355	}
6356	pContext = pState->papContexts[cid];
6357	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6358
6359	if (type == SVGA3D_SHADERTYPE_VS)
6360	{
6361	if ( shid < pContext->cVertexShaders
6362	&& pContext->paVertexShader[shid].id == shid)
6363	{
6364	pShader = &pContext->paVertexShader[shid];
6365	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6366	AssertRC(rc);
6367	}
6368	}
6369	else
6370	{
6371	Assert(type == SVGA3D_SHADERTYPE_PS);
6372	if ( shid < pContext->cPixelShaders
6373	&& pContext->paPixelShader[shid].id == shid)
6374	{
6375	pShader = &pContext->paPixelShader[shid];
6376	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6377	AssertRC(rc);
6378	}
6379	}
6380
6381	if (pShader)
6382	{
6383	if (pShader->pShaderProgram)
6384	RTMemFree(pShader->pShaderProgram);
6385	memset(pShader, 0, sizeof(*pShader));
6386	pShader->id = SVGA3D_INVALID_ID;
6387	}
6388	else
6389	AssertFailedReturn(VERR_INVALID_PARAMETER);
6390
6391	return VINF_SUCCESS;
6392	}
6393
6394	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6395	{
6396	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6397	AssertReturn(pState, VERR_NO_MEMORY);
6398	int rc;
6399
6400	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6401
6402	if ( !pContext
6403	&& cid < pState->cContexts
6404	&& pState->papContexts[cid]->id == cid)
6405	pContext = pState->papContexts[cid];
6406	else if (!pContext)
6407	{
6408	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6409	Log(("vmsvga3dShaderSet invalid context id!\n"));
6410	return VERR_INVALID_PARAMETER;
6411	}
6412	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6413
6414	if (type == SVGA3D_SHADERTYPE_VS)
6415	{
6416	/* Save for vm state save/restore. */
6417	pContext->state.shidVertex = shid;
6418	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6419
6420	if ( shid < pContext->cVertexShaders
6421	&& pContext->paVertexShader[shid].id == shid)
6422	{
6423	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6424	Assert(type == pShader->type);
6425
6426	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6427	AssertRCReturn(rc, rc);
6428	}
6429	else
6430	if (shid == SVGA_ID_INVALID)
6431	{
6432	/* Unselect shader. */
6433	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6434	AssertRCReturn(rc, rc);
6435	}
6436	else
6437	AssertFailedReturn(VERR_INVALID_PARAMETER);
6438	}
6439	else
6440	{
6441	/* Save for vm state save/restore. */
6442	pContext->state.shidPixel = shid;
6443	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6444
6445	Assert(type == SVGA3D_SHADERTYPE_PS);
6446	if ( shid < pContext->cPixelShaders
6447	&& pContext->paPixelShader[shid].id == shid)
6448	{
6449	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6450	Assert(type == pShader->type);
6451
6452	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6453	AssertRCReturn(rc, rc);
6454	}
6455	else
6456	if (shid == SVGA_ID_INVALID)
6457	{
6458	/* Unselect shader. */
6459	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6460	AssertRCReturn(rc, rc);
6461	}
6462	else
6463	AssertFailedReturn(VERR_INVALID_PARAMETER);
6464	}
6465
6466	return VINF_SUCCESS;
6467	}
6468
6469	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6470	{
6471	PVMSVGA3DCONTEXT pContext;
6472	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6473	AssertReturn(pState, VERR_NO_MEMORY);
6474	int rc;
6475
6476	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6477
6478	if ( cid >= pState->cContexts
6479	\|\| pState->papContexts[cid]->id != cid)
6480	{
6481	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6482	return VERR_INVALID_PARAMETER;
6483	}
6484	pContext = pState->papContexts[cid];
6485	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6486
6487	for (uint32_t i = 0; i < cRegisters; i++)
6488	{
6489	#ifdef LOG_ENABLED
6490	switch (ctype)
6491	{
6492	case SVGA3D_CONST_TYPE_FLOAT:
6493	{
6494	float pValuesF = (float )pValues;
6495	Log(("Constant %d: value=%d-%d-%d-%d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0), (int)(pValuesF[i4 + 1] 100.0), (int)(pValuesF[i4 + 2] 100.0), (int)(pValuesF[i4 + 3] 100.0)));
6496	break;
6497	}
6498
6499	case SVGA3D_CONST_TYPE_INT:
6500	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6501	break;
6502
6503	case SVGA3D_CONST_TYPE_BOOL:
6504	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6505	break;
6506	}
6507	#endif
6508	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6509	}
6510
6511	switch (type)
6512	{
6513	case SVGA3D_SHADERTYPE_VS:
6514	switch (ctype)
6515	{
6516	case SVGA3D_CONST_TYPE_FLOAT:
6517	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6518	break;
6519
6520	case SVGA3D_CONST_TYPE_INT:
6521	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6522	break;
6523
6524	case SVGA3D_CONST_TYPE_BOOL:
6525	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6526	break;
6527
6528	default:
6529	AssertFailedReturn(VERR_INVALID_PARAMETER);
6530	}
6531	AssertRCReturn(rc, rc);
6532	break;
6533
6534	case SVGA3D_SHADERTYPE_PS:
6535	switch (ctype)
6536	{
6537	case SVGA3D_CONST_TYPE_FLOAT:
6538	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6539	break;
6540
6541	case SVGA3D_CONST_TYPE_INT:
6542	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6543	break;
6544
6545	case SVGA3D_CONST_TYPE_BOOL:
6546	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6547	break;
6548
6549	default:
6550	AssertFailedReturn(VERR_INVALID_PARAMETER);
6551	}
6552	AssertRCReturn(rc, rc);
6553	break;
6554
6555	default:
6556	AssertFailedReturn(VERR_INVALID_PARAMETER);
6557	}
6558
6559	return VINF_SUCCESS;
6560	}
6561
6562	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6563	{
6564	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6565	GLuint idQuery = 0;
6566	pState->ext.glGenQueries(1, &idQuery);
6567	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6568	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6569	pContext->occlusion.idQuery = idQuery;
6570	return VINF_SUCCESS;
6571	}
6572
6573	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6574	{
6575	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6576	if (pContext->occlusion.idQuery)
6577	{
6578	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6579	}
6580	return VINF_SUCCESS;
6581	}
6582
6583	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6584	{
6585	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6586	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6587	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6588	return VINF_SUCCESS;
6589	}
6590
6591	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6592	{
6593	RT_NOREF(pContext);
6594	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6595	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6596	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6597	return VINF_SUCCESS;
6598	}
6599
6600	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6601	{
6602	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6603	GLuint pixels = 0;
6604	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6605	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6606
6607	*pu32Pixels = (uint32_t)pixels;
6608	return VINF_SUCCESS;
6609	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 73736

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