DevVGA-SVGA3d-ogl.cpp@ 87766

Last change on this file since 87766 was 86905, checked in by vboxsync, 4 years ago
Devices/Graphics: use new vmsvga headers, stubs for more commands. bugref:9830
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 297.2 KB

Line
1	/* $Id: DevVGA-SVGA3d-ogl.cpp 86905 2020-11-17 23:36:12Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2020 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	#include <VBox/AssertGuest.h>
36
37	#include <iprt/assert.h>
38	#include <iprt/semaphore.h>
39	#include <iprt/uuid.h>
40	#include <iprt/mem.h>
41
42	#include <VBoxVideo.h> /* required by DevVGA.h */
43	#include <VBoxVideo3D.h>
44
45	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
46	#include "DevVGA.h"
47
48	#include "DevVGA-SVGA.h"
49	#include "DevVGA-SVGA3d.h"
50	#include "DevVGA-SVGA3d-internal.h"
51
52	#ifdef DUMP_SHADER_DISASSEMBLY
53	# include <d3dx9shader.h>
54	#endif
55
56	#include <stdlib.h>
57	#include <math.h>
58	#include <float.h> /* FLT_MIN */
59
60
61	/*********************************************************************************************************************************
62	* Defined Constants And Macros *
63	*********************************************************************************************************************************/
64	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
65	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
66	#endif
67
68	#ifdef VMSVGA3D_DYNAMIC_LOAD
69	# define OGLGETPROCADDRESS glLdrGetProcAddress
70	#else
71	#ifdef RT_OS_WINDOWS
72	# define OGLGETPROCADDRESS MyWinGetProcAddress
73	DECLINLINE(PROC) MyWinGetProcAddress(const char *pszSymbol)
74	{
75	/* Khronos: [on failure] "some implementations will return other values. 1, 2, and 3 are used, as well as -1". */
76	PROC p = wglGetProcAddress(pszSymbol);
77	if (RT_VALID_PTR(p))
78	return p;
79	return 0;
80	}
81	#elif defined(RT_OS_DARWIN)
82	# include <dlfcn.h>
83	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
84	/** Resolves an OpenGL symbol. */
85	static void MyNSGLGetProcAddress(const char pszSymbol)
86	{
87	/* Another copy in shaderapi.c. */
88	static void *s_pvImage = NULL;
89	if (s_pvImage == NULL)
90	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
91	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
92	}
93
94	#else
95	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
96	#endif
97	#endif
98
99	/* Invert y-coordinate for OpenGL's bottom left origin. */
100	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->paMipmapLevels[0].mipmapSize.height - (y_coordinate))
101	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
102
103	/**
104	* Macro for doing something and then checking for errors during initialization.
105	* Uses AssertLogRelMsg.
106	*/
107	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
108	do \
109	{ \
110	a_Expr; \
111	GLenum iGlError = glGetError(); \
112	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
113	} while (0)
114
115	/**
116	* Macro for doing something and then checking for errors during initialization,
117	* doing the same in the other context when enabled.
118	*
119	* This will try both profiles in dual profile builds. Caller must be in the
120	* default context.
121	*
122	* Uses AssertLogRelMsg to indicate trouble.
123	*/
124	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
125	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
126	do \
127	{ \
128	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
129	a_Expr; \
130	GLenum iGlError = glGetError(); \
131	if (iGlError != GL_NO_ERROR) \
132	{ \
133	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
134	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
135	a_Expr; \
136	GLenum iGlError2 = glGetError(); \
137	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
138	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
139	} \
140	} while (0)
141	#else
142	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
143	#endif
144
145
146	/*********************************************************************************************************************************
147	* Global Variables *
148	*********************************************************************************************************************************/
149	/* Define the default light parameters as specified by MSDN. */
150	/** @todo move out; fetched from Wine */
151	const SVGA3dLightData vmsvga3d_default_light =
152	{
153	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
154	false, /* inWorldSpace */
155	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
156	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
157	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
158	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
159	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
160	0.0f, /* range */
161	0.0f, /* falloff */
162	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
163	0.0f, /* theta */
164	0.0f /* phi */
165	};
166
167
168	/*********************************************************************************************************************************
169	* Internal Functions *
170	*********************************************************************************************************************************/
171	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid);
172	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
173
174	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
175	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
176
177
178	/**
179	* Checks if the given OpenGL extension is supported.
180	*
181	* @returns true if supported, false if not.
182	* @param pState The VMSVGA3d state.
183	* @param rsMinGLVersion The OpenGL version that introduced this feature
184	* into the core.
185	* @param pszWantedExtension The name of the OpenGL extension we want padded
186	* with one space at each end.
187	* @remarks Init time only.
188	*/
189	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
190	{
191	RT_NOREF(rsMinGLVersion);
192	/* check padding. */
193	Assert(pszWantedExtension[0] == ' ');
194	Assert(pszWantedExtension[1] != ' ');
195	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
196
197	/* Look it up. */
198	bool fRet = false;
199	if (strstr(pState->pszExtensions, pszWantedExtension))
200	fRet = true;
201
202	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
203	#ifdef RT_OS_DARWIN
204	AssertMsg( rsMinGLVersion == 0.0
205	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
206	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
207	("%s actual:%d min:%d fRet=%d\n",
208	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
209	#else
210	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
211	("%s actual:%d min:%d fRet=%d\n",
212	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
213	#endif
214	return fRet;
215	}
216
217
218	/**
219	* Outputs GL_EXTENSIONS list to the release log.
220	*/
221	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
222	{
223	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
224	bool fBuffered = RTLogRelSetBuffering(true);
225
226	/*
227	* Determin the column widths first.
228	*/
229	size_t acchWidths[4] = { 1, 1, 1, 1 };
230	uint32_t i;
231	const char *psz = pszExtensions;
232	for (i = 0; ; i++)
233	{
234	while (*psz == ' ')
235	psz++;
236	if (!*psz)
237	break;
238
239	const char *pszEnd = strchr(psz, ' ');
240	AssertBreak(pszEnd);
241	size_t cch = pszEnd - psz;
242
243	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
244	if (acchWidths[iColumn] < cch)
245	acchWidths[iColumn] = cch;
246
247	psz = pszEnd;
248	}
249
250	/*
251	* Output it.
252	*/
253	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
254	psz = pszExtensions;
255	for (i = 0; ; i++)
256	{
257	while (*psz == ' ')
258	psz++;
259	if (!*psz)
260	break;
261
262	const char *pszEnd = strchr(psz, ' ');
263	AssertBreak(pszEnd);
264	size_t cch = pszEnd - psz;
265
266	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
267	if (iColumn == 0)
268	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
269	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
270	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
271	else
272	LogRel((" %.*s", cch, psz));
273
274	psz = pszEnd;
275	}
276
277	RTLogRelSetBuffering(fBuffered);
278	LogRel(("\n"));
279	}
280
281	/**
282	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
283	* @a ppszExtensions.
284	*
285	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
286	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
287	* @param fGLProfileVersion The OpenGL profile version.
288	*/
289	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
290	{
291	int rc;
292	*ppszExtensions = NULL;
293
294	/*
295	* Try the old glGetString interface first.
296	*/
297	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
298	if (pszExtensions)
299	{
300	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
301	AssertLogRelRCReturn(rc, rc);
302	}
303	else
304	{
305	/*
306	* The new interface where each extension string is retrieved separately.
307	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
308	* the above GL_EXTENSIONS error lingers on darwin. sucks.
309	*/
310	#ifndef GL_NUM_EXTENSIONS
311	# define GL_NUM_EXTENSIONS 0x821D
312	#endif
313	GLint cExtensions = 1024;
314	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
315	Assert(cExtensions != 1024);
316
317	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
318	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
319
320	rc = RTStrAAppend(ppszExtensions, " ");
321	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
322	{
323	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
324	if (pszExt)
325	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
326	}
327	AssertRCReturn(rc, rc);
328	}
329
330	#if 1
331	/*
332	* Add extensions promoted into the core OpenGL profile.
333	*/
334	static const struct
335	{
336	float fGLVersion;
337	const char *pszzExtensions;
338	} s_aPromotedExtensions[] =
339	{
340	{
341	1.1f,
342	" GL_EXT_vertex_array \0"
343	" GL_EXT_polygon_offset \0"
344	" GL_EXT_blend_logic_op \0"
345	" GL_EXT_texture \0"
346	" GL_EXT_copy_texture \0"
347	" GL_EXT_subtexture \0"
348	" GL_EXT_texture_object \0"
349	" GL_ARB_framebuffer_object \0"
350	" GL_ARB_map_buffer_range \0"
351	" GL_ARB_vertex_array_object \0"
352	"\0"
353	},
354	{
355	1.2f,
356	" EXT_texture3D \0"
357	" EXT_bgra \0"
358	" EXT_packed_pixels \0"
359	" EXT_rescale_normal \0"
360	" EXT_separate_specular_color \0"
361	" SGIS_texture_edge_clamp \0"
362	" SGIS_texture_lod \0"
363	" EXT_draw_range_elements \0"
364	"\0"
365	},
366	{
367	1.3f,
368	" GL_ARB_texture_compression \0"
369	" GL_ARB_texture_cube_map \0"
370	" GL_ARB_multisample \0"
371	" GL_ARB_multitexture \0"
372	" GL_ARB_texture_env_add \0"
373	" GL_ARB_texture_env_combine \0"
374	" GL_ARB_texture_env_dot3 \0"
375	" GL_ARB_texture_border_clamp \0"
376	" GL_ARB_transpose_matrix \0"
377	"\0"
378	},
379	{
380	1.5f,
381	" GL_SGIS_generate_mipmap \0"
382	/" GL_NV_blend_equare \0"/
383	" GL_ARB_depth_texture \0"
384	" GL_ARB_shadow \0"
385	" GL_EXT_fog_coord \0"
386	" GL_EXT_multi_draw_arrays \0"
387	" GL_ARB_point_parameters \0"
388	" GL_EXT_secondary_color \0"
389	" GL_EXT_blend_func_separate \0"
390	" GL_EXT_stencil_wrap \0"
391	" GL_ARB_texture_env_crossbar \0"
392	" GL_EXT_texture_lod_bias \0"
393	" GL_ARB_texture_mirrored_repeat \0"
394	" GL_ARB_window_pos \0"
395	"\0"
396	},
397	{
398	1.6f,
399	" GL_ARB_vertex_buffer_object \0"
400	" GL_ARB_occlusion_query \0"
401	" GL_EXT_shadow_funcs \0"
402	},
403	{
404	2.0f,
405	" GL_ARB_shader_objects \0" /??/
406	" GL_ARB_vertex_shader \0" /??/
407	" GL_ARB_fragment_shader \0" /??/
408	" GL_ARB_shading_language_100 \0" /??/
409	" GL_ARB_draw_buffers \0"
410	" GL_ARB_texture_non_power_of_two \0"
411	" GL_ARB_point_sprite \0"
412	" GL_ATI_separate_stencil \0"
413	" GL_EXT_stencil_two_side \0"
414	"\0"
415	},
416	{
417	2.1f,
418	" GL_ARB_pixel_buffer_object \0"
419	" GL_EXT_texture_sRGB \0"
420	"\0"
421	},
422	{
423	3.0f,
424	" GL_ARB_framebuffer_object \0"
425	" GL_ARB_map_buffer_range \0"
426	" GL_ARB_vertex_array_object \0"
427	"\0"
428	},
429	{
430	3.1f,
431	" GL_ARB_copy_buffer \0"
432	" GL_ARB_uniform_buffer_object \0"
433	"\0"
434	},
435	{
436	3.2f,
437	" GL_ARB_vertex_array_bgra \0"
438	" GL_ARB_draw_elements_base_vertex \0"
439	" GL_ARB_fragment_coord_conventions \0"
440	" GL_ARB_provoking_vertex \0"
441	" GL_ARB_seamless_cube_map \0"
442	" GL_ARB_texture_multisample \0"
443	" GL_ARB_depth_clamp \0"
444	" GL_ARB_sync \0"
445	" GL_ARB_geometry_shader4 \0" /??/
446	"\0"
447	},
448	{
449	3.3f,
450	" GL_ARB_blend_func_extended \0"
451	" GL_ARB_sampler_objects \0"
452	" GL_ARB_explicit_attrib_location \0"
453	" GL_ARB_occlusion_query2 \0"
454	" GL_ARB_shader_bit_encoding \0"
455	" GL_ARB_texture_rgb10_a2ui \0"
456	" GL_ARB_texture_swizzle \0"
457	" GL_ARB_timer_query \0"
458	" GL_ARB_vertex_type_2_10_10_10_rev \0"
459	"\0"
460	},
461	{
462	4.0f,
463	" GL_ARB_texture_query_lod \0"
464	" GL_ARB_draw_indirect \0"
465	" GL_ARB_gpu_shader5 \0"
466	" GL_ARB_gpu_shader_fp64 \0"
467	" GL_ARB_shader_subroutine \0"
468	" GL_ARB_tessellation_shader \0"
469	" GL_ARB_texture_buffer_object_rgb32 \0"
470	" GL_ARB_texture_cube_map_array \0"
471	" GL_ARB_texture_gather \0"
472	" GL_ARB_transform_feedback2 \0"
473	" GL_ARB_transform_feedback3 \0"
474	"\0"
475	},
476	{
477	4.1f,
478	" GL_ARB_ES2_compatibility \0"
479	" GL_ARB_get_program_binary \0"
480	" GL_ARB_separate_shader_objects \0"
481	" GL_ARB_shader_precision \0"
482	" GL_ARB_vertex_attrib_64bit \0"
483	" GL_ARB_viewport_array \0"
484	"\0"
485	}
486	};
487
488	uint32_t cPromoted = 0;
489	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
490	{
491	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
492	while (*pszExt)
493	{
494	# ifdef VBOX_STRICT
495	size_t cchExt = strlen(pszExt);
496	Assert(cchExt > 3);
497	Assert(pszExt[0] == ' ');
498	Assert(pszExt[1] != ' ');
499	Assert(pszExt[cchExt - 2] != ' ');
500	Assert(pszExt[cchExt - 1] == ' ');
501	# endif
502
503	if (strstr(*ppszExtensions, pszExt) == NULL)
504	{
505	if (cPromoted++ == 0)
506	{
507	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
508	AssertRCReturn(rc, rc);
509	}
510
511	rc = RTStrAAppend(ppszExtensions, pszExt);
512	AssertRCReturn(rc, rc);
513	}
514
515	pszExt = strchr(pszExt, '\0') + 1;
516	}
517	}
518	#endif
519
520	return VINF_SUCCESS;
521	}
522
523	/** Check whether this is an Intel GL driver.
524	*
525	* @returns true if this seems to be some Intel graphics.
526	*/
527	static bool vmsvga3dIsVendorIntel(void)
528	{
529	return RTStrNICmp((char *)glGetString(GL_VENDOR), "Intel", 5) == 0;
530	}
531
532	/**
533	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
534	*/
535	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
536	{
537	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
538	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
539	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
540	#else
541	NOREF(pThis);
542	NOREF(fOtherProfile);
543	#endif
544	}
545
546
547	/**
548	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
549	*/
550	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
551	char *pszBuf, size_t cbBuf, bool fOtherProfile)
552	{
553	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
554	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
555	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
556	while (*pszCur == ' ')
557	pszCur++;
558	if (!*pszCur)
559	return false;
560
561	const char *pszEnd = strchr(pszCur, ' ');
562	AssertReturn(pszEnd, false);
563	size_t cch = pszEnd - pszCur;
564	if (cch < cbBuf)
565	{
566	memcpy(pszBuf, pszCur, cch);
567	pszBuf[cch] = '\0';
568	}
569	else if (cbBuf > 0)
570	{
571	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
572	pszBuf[cbBuf - 1] = '\0';
573	}
574
575	ppvEnumCtx = (void )pszEnd;
576	return true;
577	}
578
579
580	/**
581	* Initializes the VMSVGA3D state during VGA device construction.
582	*
583	* Failure are generally not fatal, 3D support will just be disabled.
584	*
585	* @returns VBox status code.
586	* @param pDevIns The device instance.
587	* @param pThis The shared VGA/VMSVGA state where svga.p3dState will be
588	* modified.
589	* @param pThisCC The VGA/VMSVGA state for ring-3.
590	*/
591	int vmsvga3dInit(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
592	{
593	int rc;
594	RT_NOREF(pDevIns, pThis);
595
596	AssertCompile(GL_TRUE == 1);
597	AssertCompile(GL_FALSE == 0);
598
599	#ifdef VMSVGA3D_DYNAMIC_LOAD
600	rc = glLdrInit(pDevIns);
601	if (RT_FAILURE(rc))
602	{
603	LogRel(("VMSVGA3d: Error loading OpenGL library and resolving necessary functions: %Rrc\n", rc));
604	return rc;
605	}
606	#endif
607
608	/*
609	* Load and resolve imports from the external shared libraries.
610	*/
611	RTERRINFOSTATIC ErrInfo;
612	rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
613	if (RT_FAILURE(rc))
614	{
615	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
616	return rc;
617	}
618	#ifdef RT_OS_DARWIN
619	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
620	if (RT_FAILURE(rc))
621	{
622	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
623	return rc;
624	}
625	#endif
626
627	/*
628	* Allocate the state.
629	*/
630	pThisCC->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
631	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
632
633	#ifdef RT_OS_WINDOWS
634	/* Create event semaphore and async IO thread. */
635	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
636	rc = RTSemEventCreate(&pState->WndRequestSem);
637	if (RT_SUCCESS(rc))
638	{
639	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
640	"VMSVGA3DWND");
641	if (RT_SUCCESS(rc))
642	return VINF_SUCCESS;
643
644	/* bail out. */
645	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
646	RTSemEventDestroy(pState->WndRequestSem);
647	}
648	else
649	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
650	RTMemFree(pThisCC->svga.p3dState);
651	pThisCC->svga.p3dState = NULL;
652	return rc;
653	#else
654	return VINF_SUCCESS;
655	#endif
656	}
657
658	static int vmsvga3dLoadGLFunctions(PVMSVGA3DSTATE pState)
659	{
660	/* A strict approach to get a proc address as recommended by Khronos:
661	* - "If the function is a core OpenGL function, then we need to check the OpenGL version".
662	* - "If the function is an extension, we need to check to see if the extension is supported."
663	*/
664
665	/* Get a function address, return VERR_NOT_IMPLEMENTED on failure. */
666	#define GLGETPROC_(ProcType, ProcName, NameSuffix) do { \
667	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
668	AssertLogRelMsgReturn(pState->ext.ProcName, (#ProcName NameSuffix " missing"), VERR_NOT_IMPLEMENTED); \
669	} while(0)
670
671	/* Get an optional function address. LogRel on failure. */
672	#define GLGETPROCOPT_(ProcType, ProcName, NameSuffix) do { \
673	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName NameSuffix); \
674	if (!pState->ext.ProcName) \
675	{ \
676	LogRel(("VMSVGA3d: missing optional %s\n", #ProcName NameSuffix)); \
677	AssertFailed(); \
678	} \
679	} while(0)
680
681	/* OpenGL 2.0 or earlier core. Do not bother with extensions. */
682	GLGETPROC_(PFNGLGENQUERIESPROC , glGenQueries, "");
683	GLGETPROC_(PFNGLDELETEQUERIESPROC , glDeleteQueries, "");
684	GLGETPROC_(PFNGLBEGINQUERYPROC , glBeginQuery, "");
685	GLGETPROC_(PFNGLENDQUERYPROC , glEndQuery, "");
686	GLGETPROC_(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv, "");
687	GLGETPROC_(PFNGLTEXIMAGE3DPROC , glTexImage3D, "");
688	GLGETPROC_(PFNGLTEXSUBIMAGE3DPROC , glTexSubImage3D, "");
689	GLGETPROC_(PFNGLGETCOMPRESSEDTEXIMAGEPROC , glGetCompressedTexImage, "");
690	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE2DPROC , glCompressedTexImage2D, "");
691	GLGETPROC_(PFNGLCOMPRESSEDTEXIMAGE3DPROC , glCompressedTexImage3D, "");
692	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC , glCompressedTexSubImage2D, "");
693	GLGETPROC_(PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC , glCompressedTexSubImage3D, "");
694	GLGETPROC_(PFNGLPOINTPARAMETERFPROC , glPointParameterf, "");
695	GLGETPROC_(PFNGLBLENDEQUATIONSEPARATEPROC , glBlendEquationSeparate, "");
696	GLGETPROC_(PFNGLBLENDFUNCSEPARATEPROC , glBlendFuncSeparate, "");
697	GLGETPROC_(PFNGLSTENCILOPSEPARATEPROC , glStencilOpSeparate, "");
698	GLGETPROC_(PFNGLSTENCILFUNCSEPARATEPROC , glStencilFuncSeparate, "");
699	GLGETPROC_(PFNGLBINDBUFFERPROC , glBindBuffer, "");
700	GLGETPROC_(PFNGLDELETEBUFFERSPROC , glDeleteBuffers, "");
701	GLGETPROC_(PFNGLGENBUFFERSPROC , glGenBuffers, "");
702	GLGETPROC_(PFNGLBUFFERDATAPROC , glBufferData, "");
703	GLGETPROC_(PFNGLMAPBUFFERPROC , glMapBuffer, "");
704	GLGETPROC_(PFNGLUNMAPBUFFERPROC , glUnmapBuffer, "");
705	GLGETPROC_(PFNGLENABLEVERTEXATTRIBARRAYPROC , glEnableVertexAttribArray, "");
706	GLGETPROC_(PFNGLDISABLEVERTEXATTRIBARRAYPROC , glDisableVertexAttribArray, "");
707	GLGETPROC_(PFNGLVERTEXATTRIBPOINTERPROC , glVertexAttribPointer, "");
708	GLGETPROC_(PFNGLACTIVETEXTUREPROC , glActiveTexture, "");
709	/* glGetProgramivARB determines implementation limits for the program
710	* target (GL_FRAGMENT_PROGRAM_ARB, GL_VERTEX_PROGRAM_ARB).
711	* It differs from glGetProgramiv, which returns a parameter from a program object.
712	*/
713	GLGETPROC_(PFNGLGETPROGRAMIVARBPROC , glGetProgramivARB, "");
714	GLGETPROC_(PFNGLFOGCOORDPOINTERPROC , glFogCoordPointer, "");
715	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
716	GLGETPROC_(PFNGLBLENDCOLORPROC , glBlendColor, "");
717	GLGETPROC_(PFNGLBLENDEQUATIONPROC , glBlendEquation, "");
718	#endif
719	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
720	GLGETPROC_(PFNGLCLIENTACTIVETEXTUREPROC , glClientActiveTexture, "");
721	#endif
722	GLGETPROC_(PFNGLDRAWBUFFERSPROC , glDrawBuffers, "");
723	GLGETPROC_(PFNGLCREATESHADERPROC , glCreateShader, "");
724	GLGETPROC_(PFNGLSHADERSOURCEPROC , glShaderSource, "");
725	GLGETPROC_(PFNGLCOMPILESHADERPROC , glCompileShader, "");
726	GLGETPROC_(PFNGLGETSHADERIVPROC , glGetShaderiv, "");
727	GLGETPROC_(PFNGLGETSHADERINFOLOGPROC , glGetShaderInfoLog, "");
728	GLGETPROC_(PFNGLCREATEPROGRAMPROC , glCreateProgram, "");
729	GLGETPROC_(PFNGLATTACHSHADERPROC , glAttachShader, "");
730	GLGETPROC_(PFNGLLINKPROGRAMPROC , glLinkProgram, "");
731	GLGETPROC_(PFNGLGETPROGRAMIVPROC , glGetProgramiv, "");
732	GLGETPROC_(PFNGLGETPROGRAMINFOLOGPROC , glGetProgramInfoLog, "");
733	GLGETPROC_(PFNGLUSEPROGRAMPROC , glUseProgram, "");
734	GLGETPROC_(PFNGLGETUNIFORMLOCATIONPROC , glGetUniformLocation, "");
735	GLGETPROC_(PFNGLUNIFORM1IPROC , glUniform1i, "");
736	GLGETPROC_(PFNGLUNIFORM4FVPROC , glUniform4fv, "");
737	GLGETPROC_(PFNGLDETACHSHADERPROC , glDetachShader, "");
738	GLGETPROC_(PFNGLDELETESHADERPROC , glDeleteShader, "");
739	GLGETPROC_(PFNGLDELETEPROGRAMPROC , glDeleteProgram, "");
740
741	GLGETPROC_(PFNGLVERTEXATTRIB4FVPROC , glVertexAttrib4fv, "");
742	GLGETPROC_(PFNGLVERTEXATTRIB4UBVPROC , glVertexAttrib4ubv, "");
743	GLGETPROC_(PFNGLVERTEXATTRIB4NUBVPROC , glVertexAttrib4Nubv, "");
744	GLGETPROC_(PFNGLVERTEXATTRIB4SVPROC , glVertexAttrib4sv, "");
745	GLGETPROC_(PFNGLVERTEXATTRIB4NSVPROC , glVertexAttrib4Nsv, "");
746	GLGETPROC_(PFNGLVERTEXATTRIB4NUSVPROC , glVertexAttrib4Nusv, "");
747
748	/* OpenGL 3.0 core, GL_ARB_instanced_arrays. Same functions names in the ARB and core specs. */
749	if ( pState->rsGLVersion >= 3.0f
750	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_framebuffer_object "))
751	{
752	GLGETPROC_(PFNGLISRENDERBUFFERPROC , glIsRenderbuffer, "");
753	GLGETPROC_(PFNGLBINDRENDERBUFFERPROC , glBindRenderbuffer, "");
754	GLGETPROC_(PFNGLDELETERENDERBUFFERSPROC , glDeleteRenderbuffers, "");
755	GLGETPROC_(PFNGLGENRENDERBUFFERSPROC , glGenRenderbuffers, "");
756	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEPROC , glRenderbufferStorage, "");
757	GLGETPROC_(PFNGLGETRENDERBUFFERPARAMETERIVPROC , glGetRenderbufferParameteriv, "");
758	GLGETPROC_(PFNGLISFRAMEBUFFERPROC , glIsFramebuffer, "");
759	GLGETPROC_(PFNGLBINDFRAMEBUFFERPROC , glBindFramebuffer, "");
760	GLGETPROC_(PFNGLDELETEFRAMEBUFFERSPROC , glDeleteFramebuffers, "");
761	GLGETPROC_(PFNGLGENFRAMEBUFFERSPROC , glGenFramebuffers, "");
762	GLGETPROC_(PFNGLCHECKFRAMEBUFFERSTATUSPROC , glCheckFramebufferStatus, "");
763	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE1DPROC , glFramebufferTexture1D, "");
764	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE2DPROC , glFramebufferTexture2D, "");
765	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURE3DPROC , glFramebufferTexture3D, "");
766	GLGETPROC_(PFNGLFRAMEBUFFERRENDERBUFFERPROC , glFramebufferRenderbuffer, "");
767	GLGETPROC_(PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC , glGetFramebufferAttachmentParameteriv, "");
768	GLGETPROC_(PFNGLGENERATEMIPMAPPROC , glGenerateMipmap, "");
769	GLGETPROC_(PFNGLBLITFRAMEBUFFERPROC , glBlitFramebuffer, "");
770	GLGETPROC_(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC , glRenderbufferStorageMultisample, "");
771	GLGETPROC_(PFNGLFRAMEBUFFERTEXTURELAYERPROC , glFramebufferTextureLayer, "");
772	}
773
774	/* OpenGL 3.1 core, GL_ARB_draw_instanced, GL_EXT_draw_instanced. */
775	if (pState->rsGLVersion >= 3.1f)
776	{
777	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "");
778	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "");
779	}
780	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_instanced "))
781	{
782	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "ARB");
783	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "ARB");
784	}
785	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_draw_instanced "))
786	{
787	GLGETPROC_(PFNGLDRAWARRAYSINSTANCEDPROC , glDrawArraysInstanced, "EXT");
788	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDPROC , glDrawElementsInstanced, "EXT");
789	}
790
791	/* OpenGL 3.2 core, GL_ARB_draw_elements_base_vertex. Same functions names in the ARB and core specs. */
792	if ( pState->rsGLVersion >= 3.2f
793	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_draw_elements_base_vertex "))
794	{
795	GLGETPROC_(PFNGLDRAWELEMENTSBASEVERTEXPROC , glDrawElementsBaseVertex, "");
796	GLGETPROC_(PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC , glDrawElementsInstancedBaseVertex, "");
797	}
798
799	/* Optional. OpenGL 3.2 core, GL_ARB_provoking_vertex. Same functions names in the ARB and core specs. */
800	if ( pState->rsGLVersion >= 3.2f
801	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_provoking_vertex "))
802	{
803	GLGETPROCOPT_(PFNGLPROVOKINGVERTEXPROC , glProvokingVertex, "");
804	}
805
806	/* OpenGL 3.3 core, GL_ARB_instanced_arrays. */
807	if (pState->rsGLVersion >= 3.3f)
808	{
809	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORPROC , glVertexAttribDivisor, "");
810	}
811	else if (vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_instanced_arrays "))
812	{
813	GLGETPROC_(PFNGLVERTEXATTRIBDIVISORARBPROC , glVertexAttribDivisor, "ARB");
814	}
815
816	#undef GLGETPROCOPT_
817	#undef GLGETPROC_
818
819	return VINF_SUCCESS;
820	}
821
822
823	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
824	int vmsvga3dPowerOn(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC)
825	{
826	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
827	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
828	PVMSVGA3DCONTEXT pContext;
829	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
830	PVMSVGA3DCONTEXT pOtherCtx;
831	#endif
832	int rc;
833	RT_NOREF(pDevIns, pThis);
834
835	if (pState->rsGLVersion != 0.0)
836	return VINF_SUCCESS; /* already initialized (load state) */
837
838	/*
839	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
840	*/
841	rc = vmsvga3dContextDefineOgl(pThisCC, 1, VMSVGA3D_DEF_CTX_F_INIT);
842	AssertRCReturn(rc, rc);
843
844	pContext = pState->papContexts[1];
845	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
846
847	#ifdef VMSVGA3D_DYNAMIC_LOAD
848	/* Context is set and it is possible now to resolve extension functions. */
849	rc = glLdrGetExtFunctions(pDevIns);
850	if (RT_FAILURE(rc))
851	{
852	LogRel(("VMSVGA3d: Error resolving extension functions: %Rrc\n", rc));
853	return rc;
854	}
855	#endif
856
857	LogRel(("VMSVGA3d: OpenGL version: %s\n"
858	"VMSVGA3d: OpenGL Vendor: %s\n"
859	"VMSVGA3d: OpenGL Renderer: %s\n"
860	"VMSVGA3d: OpenGL shader language version: %s\n",
861	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
862	glGetString(GL_SHADING_LANGUAGE_VERSION)));
863
864	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
865	AssertRCReturn(rc, rc);
866	vmsvga3dLogRelExtensions("", pState->pszExtensions);
867
868	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
869
870
871	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
872	/*
873	* Get the extension list for the alternative profile so we can better
874	* figure out the shader model and stuff.
875	*/
876	rc = vmsvga3dContextDefineOgl(pThisCC, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
877	AssertLogRelRCReturn(rc, rc);
878	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
879
880	pOtherCtx = pState->papContexts[2];
881	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
882
883	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
884	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
885	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
886	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
887	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
888	glGetString(GL_SHADING_LANGUAGE_VERSION)));
889
890	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
891	AssertRCReturn(rc, rc);
892	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
893
894	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
895
896	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
897	#else
898	pState->pszOtherExtensions = (char *)"";
899	pState->rsOtherGLVersion = pState->rsGLVersion;
900	#endif
901
902	/*
903	* Resolve GL function pointers and store them in pState->ext.
904	*/
905	rc = vmsvga3dLoadGLFunctions(pState);
906	if (RT_FAILURE(rc))
907	{
908	LogRel(("VMSVGA3d: missing required OpenGL function or extension; aborting\n"));
909	return rc;
910	}
911
912	/*
913	* Initialize the capabilities with sensible defaults.
914	*/
915	pState->caps.maxActiveLights = 1;
916	pState->caps.maxTextures = 1;
917	pState->caps.maxClipDistances = 4;
918	pState->caps.maxColorAttachments = 1;
919	pState->caps.maxRectangleTextureSize = 2048;
920	pState->caps.maxTextureAnisotropy = 1;
921	pState->caps.maxVertexShaderInstructions = 1024;
922	pState->caps.maxFragmentShaderInstructions = 1024;
923	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
924	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
925	pState->caps.flPointSize[0] = 1;
926	pState->caps.flPointSize[1] = 1;
927
928	/*
929	* Query capabilities
930	*/
931	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
932	pState->caps.fTextureFilterAnisotropicSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_filter_anisotropic ");
933
934	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
935	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
936	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
937	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
938	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
939	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
940	#else
941	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
942	#endif
943	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
944	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
945	if (pState->caps.fTextureFilterAnisotropicSupported)
946	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
947	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
948
949	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
950	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
951	&pState->caps.maxFragmentShaderTemps));
952	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
953	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
954	&pState->caps.maxFragmentShaderInstructions));
955	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
956	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
957	&pState->caps.maxVertexShaderTemps));
958	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
959	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
960	&pState->caps.maxVertexShaderInstructions));
961
962	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
963	* ARB Assembly Language
964	* These are done through testing the presence of extensions. You should test them in this order:
965	* GL_NV_gpu_program4: SM 4.0 or better.
966	* GL_NV_vertex_program3: SM 3.0 or better.
967	* GL_ARB_fragment_program: SM 2.0 or better.
968	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
969	*
970	*/
971	/** @todo distinguish between vertex and pixel shaders??? */
972	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
973	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
974	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
975	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
976	#else
977	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
978	#endif
979	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
980	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
981	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
982	{
983	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
984	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
985	}
986	else
987	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
988	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
989	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
990	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
991	)
992	{
993	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
994	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
995	}
996	else
997	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
998	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
999	{
1000	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
1001	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
1002	}
1003	else
1004	{
1005	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
1006	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
1007	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
1008	}
1009
1010	/* Now check the shading language version, in case it indicates a higher supported version. */
1011	if (v >= 3.30f)
1012	{
1013	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_40);
1014	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_40);
1015	}
1016	else
1017	if (v >= 1.20f)
1018	{
1019	pState->caps.vertexShaderVersion = RT_MAX(pState->caps.vertexShaderVersion, SVGA3DVSVERSION_20);
1020	pState->caps.fragmentShaderVersion = RT_MAX(pState->caps.fragmentShaderVersion, SVGA3DPSVERSION_20);
1021	}
1022
1023	if ( !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_vertex_array_bgra ")
1024	&& !vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_vertex_array_bgra "))
1025	{
1026	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
1027	}
1028
1029	/*
1030	* Tweak capabilities.
1031	*/
1032	/* Intel Windows drivers return 31, while the guest expects 32 at least. */
1033	if ( pState->caps.maxVertexShaderTemps < 32
1034	&& vmsvga3dIsVendorIntel())
1035	pState->caps.maxVertexShaderTemps = 32;
1036
1037	#if 0
1038	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
1039	SVGA3D_DEVCAP_QUERY_TYPES = 15,
1040	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
1041	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
1042	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
1043	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
1044	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
1045	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
1046	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
1047	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
1048	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
1049	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
1050	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
1051	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
1052	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
1053	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
1054	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
1055	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
1056	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
1057	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
1058	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
1059	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
1060	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
1061	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
1062	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
1063	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
1064	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
1065	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
1066	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
1067	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
1068	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
1069	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
1070	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
1071	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
1072	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
1073	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
1074	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
1075	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
1076	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
1077	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
1078	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
1079	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
1080	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
1081	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
1082	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
1083	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
1084	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
1085	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
1086	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
1087	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
1088	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
1089	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
1090	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
1091	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
1092	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
1093	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
1094	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
1095	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
1096	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
1097	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
1098	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
1099	SVGA3D_DEVCAP_SURFACEFMT_ATI1 = 82,
1100	SVGA3D_DEVCAP_SURFACEFMT_ATI2 = 83,
1101	#endif
1102
1103	LogRel(("VMSVGA3d: Capabilities:\n"));
1104	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d\n",
1105	pState->caps.maxActiveLights, pState->caps.maxTextures));
1106	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
1107	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
1108	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
1109	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
1110	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
1111	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
1112	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
1113	pState->caps.maxFragmentShaderTemps,
1114	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
1115	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
1116	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d\n",
1117	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion));
1118	LogRel(("VMSVGA3d: fS3TCSupported=%-2d fTextureFilterAnisotropicSupported=%d\n",
1119	pState->caps.fS3TCSupported, pState->caps.fTextureFilterAnisotropicSupported));
1120
1121
1122	/* Initialize the shader library. */
1123	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1124	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1125	rc = ShaderInitLib(&pState->ShaderIf);
1126	AssertRC(rc);
1127
1128	/* Cleanup */
1129	rc = vmsvga3dContextDestroy(pThisCC, 1);
1130	AssertRC(rc);
1131	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1132	rc = vmsvga3dContextDestroy(pThisCC, 2);
1133	AssertRC(rc);
1134	#endif
1135
1136	if ( pState->rsGLVersion < 3.0
1137	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1138	{
1139	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1140	return VERR_NOT_IMPLEMENTED;
1141	}
1142
1143	return VINF_SUCCESS;
1144	}
1145
1146	int vmsvga3dReset(PVGASTATECC pThisCC)
1147	{
1148	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1149	AssertReturn(pThisCC->svga.p3dState, VERR_NO_MEMORY);
1150
1151	/* Destroy all leftover surfaces. */
1152	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1153	{
1154	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1155	vmsvga3dSurfaceDestroy(pThisCC, pState->papSurfaces[i]->id);
1156	}
1157
1158	/* Destroy all leftover contexts. */
1159	for (uint32_t i = 0; i < pState->cContexts; i++)
1160	{
1161	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1162	vmsvga3dContextDestroy(pThisCC, pState->papContexts[i]->id);
1163	}
1164
1165	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1166	vmsvga3dContextDestroyOgl(pThisCC, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1167
1168	return VINF_SUCCESS;
1169	}
1170
1171	int vmsvga3dTerminate(PVGASTATECC pThisCC)
1172	{
1173	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1174	AssertReturn(pState, VERR_WRONG_ORDER);
1175	int rc;
1176
1177	rc = vmsvga3dReset(pThisCC);
1178	AssertRCReturn(rc, rc);
1179
1180	/* Terminate the shader library. */
1181	rc = ShaderDestroyLib();
1182	AssertRC(rc);
1183
1184	#ifdef RT_OS_WINDOWS
1185	/* Terminate the window creation thread. */
1186	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1187	AssertRCReturn(rc, rc);
1188
1189	RTSemEventDestroy(pState->WndRequestSem);
1190	#elif defined(RT_OS_DARWIN)
1191
1192	#elif defined(RT_OS_LINUX)
1193	/* signal to the thread that it is supposed to exit */
1194	pState->bTerminate = true;
1195	/* wait for it to terminate */
1196	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1197	AssertRC(rc);
1198	XCloseDisplay(pState->display);
1199	#endif
1200
1201	RTStrFree(pState->pszExtensions);
1202	pState->pszExtensions = NULL;
1203	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1204	RTStrFree(pState->pszOtherExtensions);
1205	#endif
1206	pState->pszOtherExtensions = NULL;
1207
1208	return VINF_SUCCESS;
1209	}
1210
1211
1212	void vmsvga3dUpdateHostScreenViewport(PVGASTATECC pThisCC, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1213	{
1214	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1215	* redraw it. */
1216
1217	#ifdef RT_OS_DARWIN
1218	RT_NOREF(pOldViewport);
1219	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1220	if ( pState
1221	&& idScreen == 0
1222	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1223	{
1224	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1225	}
1226	#else
1227	RT_NOREF(pThisCC, idScreen, pOldViewport);
1228	#endif
1229	}
1230
1231
1232	/**
1233	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1234	* given surface format capability.
1235	*
1236	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1237	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1238	*
1239	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1240	* of implicit guest expectations:
1241	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1242	*/
1243	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1244	{
1245	uint32_t result = 0;
1246
1247	/** @todo missing:
1248	*
1249	* SVGA3DFORMAT_OP_PIXELSIZE
1250	*/
1251
1252	switch (idx3dCaps)
1253	{
1254	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1255	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1256	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1257	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1258	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1259	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1260	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1261	break;
1262
1263	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1264	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1265	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1266	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1267	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1268	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1269	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1270	break;
1271	}
1272
1273	/** @todo check hardware caps! */
1274	switch (idx3dCaps)
1275	{
1276	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1277	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1278	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1279	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1280	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1281	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1282	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1283	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1284	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1285	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1286	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1287	result \|= SVGA3DFORMAT_OP_TEXTURE
1288	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1289	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1290	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1291	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1292	\| SVGA3DFORMAT_OP_CUBETEXTURE
1293	\| SVGA3DFORMAT_OP_SRGBREAD
1294	\| SVGA3DFORMAT_OP_SRGBWRITE;
1295	break;
1296
1297	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1298	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1299	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1300	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1301	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1302	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1303	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1304	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1305	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1306	break;
1307
1308	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1309	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1310	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1311	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1312	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1313	result \|= SVGA3DFORMAT_OP_TEXTURE
1314	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1315	\| SVGA3DFORMAT_OP_CUBETEXTURE
1316	\| SVGA3DFORMAT_OP_SRGBREAD;
1317	break;
1318
1319	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1320	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1321	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1322	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1323	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1324	break;
1325
1326	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1327	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1328	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1329	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1330	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1331	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1332	result \|= SVGA3DFORMAT_OP_TEXTURE
1333	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1334	\| SVGA3DFORMAT_OP_CUBETEXTURE
1335	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1336	break;
1337
1338	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1339	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1340	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1341	result \|= SVGA3DFORMAT_OP_TEXTURE
1342	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1343	\| SVGA3DFORMAT_OP_CUBETEXTURE
1344	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
1345	break;
1346
1347	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1348	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1349	result \|= SVGA3DFORMAT_OP_OFFSCREENPLAIN
1350	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1351	\| SVGA3DFORMAT_OP_TEXTURE;
1352	break;
1353
1354	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1355	case SVGA3D_DEVCAP_DEAD10: /* SVGA3D_DEVCAP_SURFACEFMT_AYUV */
1356	break;
1357	}
1358	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1359
1360	return result;
1361	}
1362
1363	#if 0 /* unused */
1364	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1365	{
1366	RT_NOREF(pState3D, idx3dCaps);
1367
1368	/** @todo test this somehow */
1369	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1370
1371	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1372	return result;
1373	}
1374	#endif
1375
1376
1377	int vmsvga3dQueryCaps(PVGASTATECC pThisCC, SVGA3dDevCapIndex idx3dCaps, uint32_t *pu32Val)
1378	{
1379	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
1380	AssertReturn(pState, VERR_NO_MEMORY);
1381	int rc = VINF_SUCCESS;
1382
1383	*pu32Val = 0;
1384
1385	/*
1386	* The capabilities access by current (2015-03-01) linux sources (gallium,
1387	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1388	* aren't access.
1389	*/
1390
1391	switch (idx3dCaps)
1392	{
1393	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1394	case SVGA3D_DEVCAP_3D:
1395	pu32Val = 1; / boolean? */
1396	break;
1397
1398	case SVGA3D_DEVCAP_MAX_LIGHTS:
1399	*pu32Val = pState->caps.maxActiveLights;
1400	break;
1401
1402	case SVGA3D_DEVCAP_MAX_TEXTURES:
1403	*pu32Val = pState->caps.maxTextures;
1404	break;
1405
1406	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1407	*pu32Val = pState->caps.maxClipDistances;
1408	break;
1409
1410	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1411	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1412	*pu32Val = pState->caps.vertexShaderVersion;
1413	break;
1414
1415	case SVGA3D_DEVCAP_VERTEX_SHADER:
1416	/* boolean? */
1417	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1418	break;
1419
1420	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1421	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1422	*pu32Val = pState->caps.fragmentShaderVersion;
1423	break;
1424
1425	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1426	/* boolean? */
1427	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1428	break;
1429
1430	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1431	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1432	/* Must be obsolete by now; surface format caps specify the same thing. */
1433	rc = VERR_INVALID_PARAMETER;
1434	break;
1435
1436	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1437	break;
1438
1439	/*
1440	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1441	* return TRUE. Even on physical hardware that does not support
1442	* these formats natively, the SVGA3D device will provide an emulation
1443	* which should be invisible to the guest OS.
1444	*/
1445	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1446	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1447	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1448	*pu32Val = 1;
1449	break;
1450
1451	case SVGA3D_DEVCAP_QUERY_TYPES:
1452	break;
1453
1454	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1455	break;
1456
1457	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1458	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1459	AssertCompile(sizeof(uint32_t) == sizeof(float));
1460	(float )pu32Val = pState->caps.flPointSize[1];
1461	break;
1462
1463	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1464	/** @todo ?? */
1465	rc = VERR_INVALID_PARAMETER;
1466	break;
1467
1468	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1469	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1470	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1471	*pu32Val = pState->caps.maxRectangleTextureSize;
1472	break;
1473
1474	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1475	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1476	//*pu32Val = pCaps->MaxVolumeExtent;
1477	*pu32Val = 256;
1478	break;
1479
1480	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1481	pu32Val = 32768; / hardcoded in Wine */
1482	break;
1483
1484	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1485	//*pu32Val = pCaps->MaxTextureAspectRatio;
1486	break;
1487
1488	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1489	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1490	*pu32Val = pState->caps.maxTextureAnisotropy;
1491	break;
1492
1493	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1494	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1495	pu32Val = 0xFFFFF; / hardcoded in Wine */
1496	break;
1497
1498	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1499	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1500	*pu32Val = pState->caps.maxVertexShaderInstructions;
1501	break;
1502
1503	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1504	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1505	break;
1506
1507	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1508	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1509	*pu32Val = pState->caps.maxVertexShaderTemps;
1510	break;
1511
1512	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1513	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1514	*pu32Val = pState->caps.maxFragmentShaderTemps;
1515	break;
1516
1517	case SVGA3D_DEVCAP_TEXTURE_OPS:
1518	break;
1519
1520	case SVGA3D_DEVCAP_DEAD4: /* SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES */
1521	break;
1522
1523	case SVGA3D_DEVCAP_DEAD5: /* SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES */
1524	break;
1525
1526	case SVGA3D_DEVCAP_DEAD7: /* SVGA3D_DEVCAP_ALPHATOCOVERAGE */
1527	break;
1528
1529	case SVGA3D_DEVCAP_DEAD6: /* SVGA3D_DEVCAP_SUPERSAMPLE */
1530	break;
1531
1532	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1533	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1534	break;
1535
1536	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1537	break;
1538
1539	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1540	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1541	*pu32Val = pState->caps.maxColorAttachments;
1542	break;
1543
1544	/*
1545	* This is the maximum number of SVGA context IDs that the guest
1546	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1547	*/
1548	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1549	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1550	break;
1551
1552	/*
1553	* This is the maximum number of SVGA surface IDs that the guest
1554	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1555	*/
1556	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1557	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1558	break;
1559
1560	#if 0 /* Appeared more recently, not yet implemented. */
1561	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1562	case SVGA3D_DEVCAP_LINE_AA:
1563	break;
1564	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1565	case SVGA3D_DEVCAP_LINE_STIPPLE:
1566	break;
1567	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1568	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1569	break;
1570	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1571	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1572	break;
1573	#endif
1574
1575	/*
1576	* Supported surface formats.
1577	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1578	*/
1579	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1580	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1581	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1582	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1583	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1584	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1585	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1586	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1587	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1588	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1589	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1590	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1591	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1592	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1593	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1594	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1595	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1596	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1597	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1598	break;
1599
1600	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1601	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1602	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1603	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1604	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1605	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1606	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1607	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1608	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1609	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1610	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1611	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1612	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1613	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1614	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1615	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1616	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1617	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1618	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1619	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1620	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1621	case SVGA3D_DEVCAP_DEAD10: /* SVGA3D_DEVCAP_SURFACEFMT_AYUV */
1622	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1623	break;
1624
1625	/* Linux: Not referenced in current sources. */
1626	case SVGA3D_DEVCAP_SURFACEFMT_ATI1:
1627	case SVGA3D_DEVCAP_SURFACEFMT_ATI2:
1628	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1629	rc = VERR_INVALID_PARAMETER;
1630	*pu32Val = 0;
1631	break;
1632
1633	default:
1634	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1635	rc = VERR_INVALID_PARAMETER;
1636	break;
1637	}
1638
1639	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1640	return rc;
1641	}
1642
1643	/**
1644	* Convert SVGA format value to its OpenGL equivalent
1645	*
1646	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1647	* help from wined3dformat_from_d3dformat().
1648	*/
1649	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1650	{
1651	#if 0
1652	#define AssertTestFmt(f) AssertMsgFailed(("Test me - " #f "\n"))
1653	#else
1654	#define AssertTestFmt(f) do {} while(0)
1655	#endif
1656	/* Init cbBlockGL for non-emulated formats. */
1657	pSurface->cbBlockGL = pSurface->cbBlock;
1658
1659	switch (format)
1660	{
1661	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1662	pSurface->internalFormatGL = GL_RGB8;
1663	pSurface->formatGL = GL_BGRA;
1664	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1665	break;
1666	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1667	pSurface->internalFormatGL = GL_RGBA8;
1668	pSurface->formatGL = GL_BGRA;
1669	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1670	break;
1671	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1672	pSurface->internalFormatGL = GL_RGB5;
1673	pSurface->formatGL = GL_RGB;
1674	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1675	AssertTestFmt(SVGA3D_R5G6B5);
1676	break;
1677	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1678	pSurface->internalFormatGL = GL_RGB5;
1679	pSurface->formatGL = GL_BGRA;
1680	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1681	AssertTestFmt(SVGA3D_X1R5G5B5);
1682	break;
1683	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1684	pSurface->internalFormatGL = GL_RGB5_A1;
1685	pSurface->formatGL = GL_BGRA;
1686	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1687	AssertTestFmt(SVGA3D_A1R5G5B5);
1688	break;
1689	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1690	pSurface->internalFormatGL = GL_RGBA4;
1691	pSurface->formatGL = GL_BGRA;
1692	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1693	AssertTestFmt(SVGA3D_A4R4G4B4);
1694	break;
1695
1696	case SVGA3D_R8G8B8A8_UNORM:
1697	pSurface->internalFormatGL = GL_RGBA8;
1698	pSurface->formatGL = GL_RGBA;
1699	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1700	break;
1701
1702	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1703	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1704	pSurface->formatGL = GL_DEPTH_COMPONENT;
1705	pSurface->typeGL = GL_UNSIGNED_INT;
1706	break;
1707	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1708	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1709	pSurface->formatGL = GL_DEPTH_COMPONENT;
1710	pSurface->typeGL = GL_UNSIGNED_SHORT;
1711	AssertTestFmt(SVGA3D_Z_D16);
1712	break;
1713	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1714	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1715	pSurface->formatGL = GL_DEPTH_STENCIL;
1716	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1717	break;
1718	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1719	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1720	pSurface->formatGL = GL_DEPTH_STENCIL;
1721	pSurface->typeGL = GL_UNSIGNED_SHORT;
1722	/** @todo Wine sources hints at no hw support for this, so test this one! */
1723	AssertTestFmt(SVGA3D_Z_D15S1);
1724	break;
1725	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1726	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1727	pSurface->formatGL = GL_DEPTH_COMPONENT;
1728	pSurface->typeGL = GL_UNSIGNED_INT;
1729	AssertTestFmt(SVGA3D_Z_D24X8);
1730	break;
1731
1732	/* Advanced D3D9 depth formats. */
1733	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1734	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1735	pSurface->formatGL = GL_DEPTH_COMPONENT;
1736	pSurface->typeGL = GL_HALF_FLOAT;
1737	break;
1738
1739	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1740	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1741	pSurface->formatGL = GL_DEPTH_COMPONENT;
1742	pSurface->typeGL = GL_FLOAT; /* ??? */
1743	break;
1744
1745	case SVGA3D_Z_D24S8_INT: /* D3DFMT_D24S8 */
1746	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1747	pSurface->formatGL = GL_DEPTH_STENCIL;
1748	pSurface->typeGL = GL_UNSIGNED_INT_24_8;
1749	break;
1750
1751	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1752	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1753	pSurface->formatGL = GL_RGBA; /* not used */
1754	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1755	break;
1756
1757	case SVGA3D_DXT2: /* D3DFMT_DXT2 */
1758	/* "DXT2 and DXT3 are the same from an API perspective." */
1759	RT_FALL_THRU();
1760	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1761	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1762	pSurface->formatGL = GL_RGBA; /* not used */
1763	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1764	break;
1765
1766	case SVGA3D_DXT4: /* D3DFMT_DXT4 */
1767	/* "DXT4 and DXT5 are the same from an API perspective." */
1768	RT_FALL_THRU();
1769	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1770	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1771	pSurface->formatGL = GL_RGBA; /* not used */
1772	pSurface->typeGL = GL_UNSIGNED_BYTE; /* not used */
1773	break;
1774
1775	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1776	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1777	pSurface->formatGL = GL_LUMINANCE;
1778	pSurface->typeGL = GL_UNSIGNED_BYTE;
1779	break;
1780
1781	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1782	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1783	pSurface->formatGL = GL_LUMINANCE;
1784	pSurface->typeGL = GL_UNSIGNED_SHORT;
1785	break;
1786
1787	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1788	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1789	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1790	pSurface->typeGL = GL_UNSIGNED_BYTE;
1791	break;
1792
1793	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1794	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1795	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1796	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1797	break;
1798
1799	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1800	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1801	pSurface->formatGL = GL_ALPHA;
1802	pSurface->typeGL = GL_UNSIGNED_BYTE;
1803	break;
1804
1805	#if 0
1806
1807	/* Bump-map formats */
1808	case SVGA3D_BUMPU8V8:
1809	return D3DFMT_V8U8;
1810	case SVGA3D_BUMPL6V5U5:
1811	return D3DFMT_L6V5U5;
1812	case SVGA3D_BUMPX8L8V8U8:
1813	return D3DFMT_X8L8V8U8;
1814	case SVGA3D_FORMAT_DEAD1:
1815	/* No corresponding D3D9 equivalent. */
1816	AssertFailedReturn(D3DFMT_UNKNOWN);
1817	/* signed bump-map formats */
1818	case SVGA3D_V8U8:
1819	return D3DFMT_V8U8;
1820	case SVGA3D_Q8W8V8U8:
1821	return D3DFMT_Q8W8V8U8;
1822	case SVGA3D_CxV8U8:
1823	return D3DFMT_CxV8U8;
1824	/* mixed bump-map formats */
1825	case SVGA3D_X8L8V8U8:
1826	return D3DFMT_X8L8V8U8;
1827	case SVGA3D_A2W10V10U10:
1828	return D3DFMT_A2W10V10U10;
1829	#endif
1830
1831	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1832	pSurface->internalFormatGL = GL_RGBA16F;
1833	pSurface->formatGL = GL_RGBA;
1834	#if 0 /* bird: wine uses half float, sounds correct to me... */
1835	pSurface->typeGL = GL_FLOAT;
1836	#else
1837	pSurface->typeGL = GL_HALF_FLOAT;
1838	AssertTestFmt(SVGA3D_ARGB_S10E5);
1839	#endif
1840	break;
1841
1842	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1843	pSurface->internalFormatGL = GL_RGBA32F;
1844	pSurface->formatGL = GL_RGBA;
1845	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1846	break;
1847
1848	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1849	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1850	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1851	pSurface->formatGL = GL_RGBA;
1852	#else
1853	pSurface->formatGL = GL_BGRA;
1854	#endif
1855	pSurface->typeGL = GL_UNSIGNED_INT;
1856	AssertTestFmt(SVGA3D_A2R10G10B10);
1857	break;
1858
1859
1860	/* Single- and dual-component floating point formats */
1861	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1862	pSurface->internalFormatGL = GL_R16F;
1863	pSurface->formatGL = GL_RED;
1864	#if 0 /* bird: wine uses half float, sounds correct to me... */
1865	pSurface->typeGL = GL_FLOAT;
1866	#else
1867	pSurface->typeGL = GL_HALF_FLOAT;
1868	AssertTestFmt(SVGA3D_R_S10E5);
1869	#endif
1870	break;
1871	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1872	pSurface->internalFormatGL = GL_R32F;
1873	pSurface->formatGL = GL_RED;
1874	pSurface->typeGL = GL_FLOAT;
1875	break;
1876	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1877	pSurface->internalFormatGL = GL_RG16F;
1878	pSurface->formatGL = GL_RG;
1879	#if 0 /* bird: wine uses half float, sounds correct to me... */
1880	pSurface->typeGL = GL_FLOAT;
1881	#else
1882	pSurface->typeGL = GL_HALF_FLOAT;
1883	AssertTestFmt(SVGA3D_RG_S10E5);
1884	#endif
1885	break;
1886	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1887	pSurface->internalFormatGL = GL_RG32F;
1888	pSurface->formatGL = GL_RG;
1889	pSurface->typeGL = GL_FLOAT;
1890	break;
1891
1892	/*
1893	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1894	* the most efficient format to use when creating new surfaces
1895	* expressly for index or vertex data.
1896	*/
1897	case SVGA3D_BUFFER:
1898	pSurface->internalFormatGL = -1;
1899	pSurface->formatGL = -1;
1900	pSurface->typeGL = -1;
1901	break;
1902
1903	#if 0
1904	return D3DFMT_UNKNOWN;
1905
1906	case SVGA3D_V16U16:
1907	return D3DFMT_V16U16;
1908	#endif
1909
1910	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1911	pSurface->internalFormatGL = GL_RG16;
1912	pSurface->formatGL = GL_RG;
1913	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1914	pSurface->typeGL = GL_UNSIGNED_INT;
1915	#else
1916	pSurface->typeGL = GL_UNSIGNED_SHORT;
1917	AssertTestFmt(SVGA3D_G16R16);
1918	#endif
1919	break;
1920
1921	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1922	pSurface->internalFormatGL = GL_RGBA16;
1923	pSurface->formatGL = GL_RGBA;
1924	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1925	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1926	#else
1927	pSurface->typeGL = GL_UNSIGNED_SHORT;
1928	AssertTestFmt(SVGA3D_A16B16G16R16);
1929	#endif
1930	break;
1931
1932	case SVGA3D_R8G8B8A8_SNORM:
1933	pSurface->internalFormatGL = GL_RGB8;
1934	pSurface->formatGL = GL_BGRA;
1935	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1936	AssertTestFmt(SVGA3D_R8G8B8A8_SNORM);
1937	break;
1938	case SVGA3D_R16G16_UNORM:
1939	pSurface->internalFormatGL = GL_RG16;
1940	pSurface->formatGL = GL_RG;
1941	pSurface->typeGL = GL_UNSIGNED_SHORT;
1942	AssertTestFmt(SVGA3D_R16G16_UNORM);
1943	break;
1944
1945	/* Packed Video formats */
1946	case SVGA3D_UYVY:
1947	case SVGA3D_YUY2:
1948	/* Use a BRGA texture to hold the data and convert it to an actual BGRA. */
1949	pSurface->fEmulated = true;
1950	pSurface->internalFormatGL = GL_RGBA8;
1951	pSurface->formatGL = GL_BGRA;
1952	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1953	pSurface->cbBlockGL = 4 * pSurface->cxBlock * pSurface->cyBlock;
1954	break;
1955
1956	#if 0
1957	/* Planar video formats */
1958	case SVGA3D_NV12:
1959	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1960
1961	/* Video format with alpha */
1962	case SVGA3D_FORMAT_DEAD2: /* Old SVGA3D_AYUV */
1963
1964	case SVGA3D_ATI1:
1965	case SVGA3D_ATI2:
1966	/* Unknown; only in DX10 & 11 */
1967	break;
1968	#endif
1969	default:
1970	AssertMsgFailed(("Unsupported format %d\n", format));
1971	break;
1972	}
1973	#undef AssertTestFmt
1974	}
1975
1976
1977	#if 0
1978	/**
1979	* Convert SVGA multi sample count value to its D3D equivalent
1980	*/
1981	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1982	{
1983	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1984	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1985
1986	if (multisampleCount > 16)
1987	return D3DMULTISAMPLE_NONE;
1988
1989	/** @todo exact same mapping as d3d? */
1990	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1991	}
1992	#endif
1993
1994	/**
1995	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1996	*
1997	* @param pState The VMSVGA3d state.
1998	* @param pSurface The surface being destroyed.
1999	*/
2000	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
2001	{
2002	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2003	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2004
2005	switch (pSurface->enmOGLResType)
2006	{
2007	case VMSVGA3D_OGLRESTYPE_BUFFER:
2008	Assert(pSurface->oglId.buffer != OPENGL_INVALID_ID);
2009	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
2010	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2011	break;
2012
2013	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2014	Assert(pSurface->oglId.texture != OPENGL_INVALID_ID);
2015	glDeleteTextures(1, &pSurface->oglId.texture);
2016	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2017	if (pSurface->fEmulated)
2018	{
2019	if (pSurface->idEmulated)
2020	{
2021	glDeleteTextures(1, &pSurface->idEmulated);
2022	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2023	}
2024	}
2025	else
2026	{
2027	Assert(!pSurface->idEmulated);
2028	}
2029	break;
2030
2031	case VMSVGA3D_OGLRESTYPE_RENDERBUFFER:
2032	Assert(pSurface->oglId.renderbuffer != OPENGL_INVALID_ID);
2033	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
2034	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2035	break;
2036
2037	default:
2038	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface),
2039	("hint=%#x, type=%d\n",
2040	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK), pSurface->enmOGLResType));
2041	break;
2042	}
2043	}
2044
2045
2046	int vmsvga3dSurfaceCopy(PVGASTATECC pThisCC, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src,
2047	uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
2048	{
2049	int rc;
2050
2051	LogFunc(("Copy %d boxes from sid=%u face=%u mipmap=%u to sid=%u face=%u mipmap=%u\n",
2052	cCopyBoxes, src.sid, src.face, src.mipmap, dest.sid, dest.face, dest.mipmap));
2053
2054	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
2055	AssertReturn(pState, VERR_INVALID_STATE);
2056
2057	PVMSVGA3DSURFACE pSurfaceSrc;
2058	rc = vmsvga3dSurfaceFromSid(pState, src.sid, &pSurfaceSrc);
2059	AssertRCReturn(rc, rc);
2060
2061	PVMSVGA3DSURFACE pSurfaceDst;
2062	rc = vmsvga3dSurfaceFromSid(pState, dest.sid, &pSurfaceDst);
2063	AssertRCReturn(rc, rc);
2064
2065	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceSrc))
2066	{
2067	/* The source surface is still in memory. */
2068	PVMSVGA3DMIPMAPLEVEL pMipmapLevelSrc;
2069	rc = vmsvga3dMipmapLevel(pSurfaceSrc, src.face, src.mipmap, &pMipmapLevelSrc);
2070	AssertRCReturn(rc, rc);
2071
2072	PVMSVGA3DMIPMAPLEVEL pMipmapLevelDst;
2073	rc = vmsvga3dMipmapLevel(pSurfaceDst, dest.face, dest.mipmap, &pMipmapLevelDst);
2074	AssertRCReturn(rc, rc);
2075
2076	/* The copy operation is performed on the shared context. */
2077	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
2078	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2079
2080	/* Use glTexSubImage to upload the data to the destination texture.
2081	* The latter must be an OpenGL texture.
2082	*/
2083	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurfaceDst))
2084	{
2085	LogFunc(("dest sid=%u type=0x%x format=%d -> create texture\n", dest.sid, pSurfaceDst->surfaceFlags, pSurfaceDst->format));
2086	rc = vmsvga3dBackCreateTexture(pState, pContext, pContext->id, pSurfaceDst);
2087	AssertRCReturn(rc, rc);
2088	}
2089
2090	GLenum target;
2091	if (pSurfaceDst->targetGL == GL_TEXTURE_CUBE_MAP)
2092	target = vmsvga3dCubemapFaceFromIndex(dest.face);
2093	else
2094	{
2095	AssertMsg(pSurfaceDst->targetGL == GL_TEXTURE_2D, ("Test %#x\n", pSurfaceDst->targetGL));
2096	target = pSurfaceDst->targetGL;
2097	}
2098
2099	/* Save the unpacking parameters and set what we need here. */
2100	VMSVGAPACKPARAMS SavedParams;
2101	vmsvga3dOglSetUnpackParams(pState, pContext,
2102	pMipmapLevelSrc->mipmapSize.width,
2103	target == GL_TEXTURE_3D ? pMipmapLevelSrc->mipmapSize.height : 0,
2104	&SavedParams);
2105
2106	glBindTexture(pSurfaceDst->targetGL, pSurfaceDst->oglId.texture);
2107	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2108
2109	for (uint32_t i = 0; i < cCopyBoxes; ++i)
2110	{
2111	SVGA3dCopyBox clipBox = pBox[i];
2112	vmsvgaR3ClipCopyBox(&pMipmapLevelSrc->mipmapSize, &pMipmapLevelDst->mipmapSize, &clipBox);
2113	if ( !clipBox.w
2114	\|\| !clipBox.h
2115	\|\| !clipBox.d)
2116	{
2117	LogFunc(("Skipped empty box.\n"));
2118	continue;
2119	}
2120
2121	LogFunc(("copy box %d,%d,%d %dx%d to %d,%d,%d\n",
2122	clipBox.srcx, clipBox.srcy, clipBox.srcz, clipBox.w, clipBox.h, clipBox.x, clipBox.y, clipBox.z));
2123
2124	uint32_t const u32BlockX = clipBox.srcx / pSurfaceSrc->cxBlock;
2125	uint32_t const u32BlockY = clipBox.srcy / pSurfaceSrc->cyBlock;
2126	uint32_t const u32BlockZ = clipBox.srcz;
2127	Assert(u32BlockX * pSurfaceSrc->cxBlock == clipBox.srcx);
2128	Assert(u32BlockY * pSurfaceSrc->cyBlock == clipBox.srcy);
2129
2130	uint8_t const pSrcBits = (uint8_t )pMipmapLevelSrc->pSurfaceData
2131	+ pMipmapLevelSrc->cbSurfacePlane * u32BlockZ
2132	+ pMipmapLevelSrc->cbSurfacePitch * u32BlockY
2133	+ pSurfaceSrc->cbBlock * u32BlockX;
2134
2135	if (target == GL_TEXTURE_3D)
2136	{
2137	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2138	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2139	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2140	{
2141	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2142	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2143	uint32_t const imageSize = cBlocksX * cBlocksY * clipBox.d * pSurfaceSrc->cbBlock;
2144	pState->ext.glCompressedTexSubImage3D(target, dest.mipmap,
2145	clipBox.x, clipBox.y, clipBox.z,
2146	clipBox.w, clipBox.h, clipBox.d,
2147	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2148	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2149	}
2150	else
2151	{
2152	pState->ext.glTexSubImage3D(target, dest.mipmap,
2153	clipBox.x, clipBox.y, clipBox.z,
2154	clipBox.w, clipBox.h, clipBox.d,
2155	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2156	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2157	}
2158	}
2159	else
2160	{
2161	if ( pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2162	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2163	\|\| pSurfaceDst->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2164	{
2165	uint32_t const cBlocksX = (clipBox.w + pSurfaceSrc->cxBlock - 1) / pSurfaceSrc->cxBlock;
2166	uint32_t const cBlocksY = (clipBox.h + pSurfaceSrc->cyBlock - 1) / pSurfaceSrc->cyBlock;
2167	uint32_t const imageSize = cBlocksX * cBlocksY * pSurfaceSrc->cbBlock;
2168	pState->ext.glCompressedTexSubImage2D(target, dest.mipmap,
2169	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2170	pSurfaceSrc->internalFormatGL, (GLsizei)imageSize, pSrcBits);
2171	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2172	}
2173	else
2174	{
2175	glTexSubImage2D(target, dest.mipmap,
2176	clipBox.x, clipBox.y, clipBox.w, clipBox.h,
2177	pSurfaceSrc->formatGL, pSurfaceSrc->typeGL, pSrcBits);
2178	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2179	}
2180	}
2181	}
2182
2183	glBindTexture(pSurfaceDst->targetGL, 0);
2184	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2185
2186	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2187
2188	return VINF_SUCCESS;
2189	}
2190
2191	PVGASTATE pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVGASTATE);
2192	for (uint32_t i = 0; i < cCopyBoxes; i++)
2193	{
2194	SVGA3dBox destBox, srcBox;
2195
2196	srcBox.x = pBox[i].srcx;
2197	srcBox.y = pBox[i].srcy;
2198	srcBox.z = pBox[i].srcz;
2199	srcBox.w = pBox[i].w;
2200	srcBox.h = pBox[i].h;
2201	srcBox.d = pBox[i].d;
2202
2203	destBox.x = pBox[i].x;
2204	destBox.y = pBox[i].y;
2205	destBox.z = pBox[i].z;
2206	destBox.w = pBox[i].w;
2207	destBox.h = pBox[i].h;
2208	destBox.d = pBox[i].d;
2209
2210	/* No stretching is required, therefore use SVGA3D_STRETCH_BLT_POINT which translated to GL_NEAREST. */
2211	rc = vmsvga3dSurfaceStretchBlt(pThis, pThisCC, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_POINT);
2212	AssertRCReturn(rc, rc);
2213	}
2214	return VINF_SUCCESS;
2215	}
2216
2217
2218	/**
2219	* Saves texture unpacking parameters and loads the specified ones.
2220	*
2221	* @param pState The VMSVGA3D state structure.
2222	* @param pContext The active context.
2223	* @param cxRow The number of pixels in a row. 0 for the entire width.
2224	* @param cyImage The height of the image in pixels. 0 for the entire height.
2225	* @param pSave Where to save stuff.
2226	*/
2227	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, GLint cxRow, GLint cyImage,
2228	PVMSVGAPACKPARAMS pSave)
2229	{
2230	RT_NOREF(pState);
2231
2232	/*
2233	* Save (ignore errors, setting the defaults we want and avoids restore).
2234	*/
2235	pSave->iAlignment = 1;
2236	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2237	pSave->cxRow = 0;
2238	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2239	pSave->cyImage = 0;
2240	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage), pState, pContext);
2241
2242	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2243	pSave->fSwapBytes = GL_FALSE;
2244	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
2245	Assert(pSave->fSwapBytes == GL_FALSE);
2246
2247	pSave->fLsbFirst = GL_FALSE;
2248	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
2249	Assert(pSave->fLsbFirst == GL_FALSE);
2250
2251	pSave->cSkipRows = 0;
2252	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
2253	Assert(pSave->cSkipRows == 0);
2254
2255	pSave->cSkipPixels = 0;
2256	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
2257	Assert(pSave->cSkipPixels == 0);
2258
2259	pSave->cSkipImages = 0;
2260	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2261	Assert(pSave->cSkipImages == 0);
2262
2263	VMSVGA3D_CLEAR_GL_ERRORS();
2264	#endif
2265
2266	/*
2267	* Setup unpack.
2268	*
2269	* Note! We use 1 as alignment here because we currently don't do any
2270	* aligning of line pitches anywhere.
2271	*/
2272	pSave->fChanged = 0;
2273	if (pSave->iAlignment != 1)
2274	{
2275	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2276	pSave->fChanged \|= VMSVGAPACKPARAMS_ALIGNMENT;
2277	}
2278	if (pSave->cxRow != cxRow)
2279	{
2280	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, cxRow), pState, pContext);
2281	pSave->fChanged \|= VMSVGAPACKPARAMS_ROW_LENGTH;
2282	}
2283	if (pSave->cyImage != cyImage)
2284	{
2285	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, cyImage), pState, pContext);
2286	pSave->fChanged \|= VMSVGAPACKPARAMS_IMAGE_HEIGHT;
2287	}
2288	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2289	if (pSave->fSwapBytes != 0)
2290	{
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2292	pSave->fChanged \|= VMSVGAPACKPARAMS_SWAP_BYTES;
2293	}
2294	if (pSave->fLsbFirst != 0)
2295	{
2296	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2297	pSave->fChanged \|= VMSVGAPACKPARAMS_LSB_FIRST;
2298	}
2299	if (pSave->cSkipRows != 0)
2300	{
2301	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2302	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_ROWS;
2303	}
2304	if (pSave->cSkipPixels != 0)
2305	{
2306	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2307	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_PIXELS;
2308	}
2309	if (pSave->cSkipImages != 0)
2310	{
2311	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2312	pSave->fChanged \|= VMSVGAPACKPARAMS_SKIP_IMAGES;
2313	}
2314	#endif
2315	}
2316
2317
2318	/**
2319	* Restores texture unpacking parameters.
2320	*
2321	* @param pState The VMSVGA3D state structure.
2322	* @param pContext The active context.
2323	* @param pSave Where stuff was saved.
2324	*/
2325	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext,
2326	PCVMSVGAPACKPARAMS pSave)
2327	{
2328	RT_NOREF(pState);
2329
2330	if (pSave->fChanged & VMSVGAPACKPARAMS_ALIGNMENT)
2331	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2332	if (pSave->fChanged & VMSVGAPACKPARAMS_ROW_LENGTH)
2333	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2334	if (pSave->fChanged & VMSVGAPACKPARAMS_IMAGE_HEIGHT)
2335	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2336	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2337	if (pSave->fChanged & VMSVGAPACKPARAMS_SWAP_BYTES)
2338	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2339	if (pSave->fChanged & VMSVGAPACKPARAMS_LSB_FIRST)
2340	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2341	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_ROWS)
2342	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2343	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_PIXELS)
2344	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2345	if (pSave->fChanged & VMSVGAPACKPARAMS_SKIP_IMAGES)
2346	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2347	#endif
2348	}
2349
2350	/**
2351	* Create D3D/OpenGL texture object for the specified surface.
2352	*
2353	* Surfaces are created when needed.
2354	*
2355	* @param pState The VMSVGA3d state.
2356	* @param pContext The context.
2357	* @param idAssociatedContext Probably the same as pContext->id.
2358	* @param pSurface The surface to create the texture for.
2359	*/
2360	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2361	PVMSVGA3DSURFACE pSurface)
2362	{
2363	RT_NOREF(idAssociatedContext);
2364
2365	LogFunc(("sid=%u\n", pSurface->id));
2366
2367	uint32_t const numMipLevels = pSurface->cLevels;
2368
2369	/* Fugure out what kind of texture we are creating. */
2370	GLenum binding;
2371	GLenum target;
2372	if (pSurface->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
2373	{
2374	Assert(pSurface->cFaces == 6);
2375
2376	binding = GL_TEXTURE_BINDING_CUBE_MAP;
2377	target = GL_TEXTURE_CUBE_MAP;
2378	}
2379	else
2380	{
2381	if (pSurface->paMipmapLevels[0].mipmapSize.depth > 1)
2382	{
2383	binding = GL_TEXTURE_BINDING_3D;
2384	target = GL_TEXTURE_3D;
2385	}
2386	else
2387	{
2388	Assert(pSurface->cFaces == 1);
2389
2390	binding = GL_TEXTURE_BINDING_2D;
2391	target = GL_TEXTURE_2D;
2392	}
2393	}
2394
2395	/* All textures are created in the SharedCtx. */
2396	uint32_t idPrevCtx = pState->idActiveContext;
2397	pContext = &pState->SharedCtx;
2398	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2399
2400	glGenTextures(1, &pSurface->oglId.texture);
2401	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2402	if (pSurface->fEmulated)
2403	{
2404	glGenTextures(1, &pSurface->idEmulated);
2405	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2406	}
2407	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_TEXTURE;
2408
2409	GLint activeTexture = 0;
2410	glGetIntegerv(binding, &activeTexture);
2411	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2412
2413	/* Must bind texture to the current context in order to change it. */
2414	glBindTexture(target, pSurface->oglId.texture);
2415	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2416
2417	/* Set the unpacking parameters. */
2418	VMSVGAPACKPARAMS SavedParams;
2419	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2420
2421	/** @todo Set the mip map generation filter settings. */
2422
2423	/* Set the mipmap base and max level parameters. */
2424	glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0);
2425	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2426	glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, pSurface->cLevels - 1);
2427	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2428
2429	if (pSurface->fDirty)
2430	LogFunc(("sync dirty texture\n"));
2431
2432	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2433	if (target == GL_TEXTURE_3D)
2434	{
2435	for (uint32_t i = 0; i < numMipLevels; ++i)
2436	{
2437	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2438	* exposing random host memory to the guest and helps a with the fedora 21 surface
2439	* corruption issues (launchpad, background, search field, login).
2440	*/
2441	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2442
2443	LogFunc(("sync dirty 3D texture mipmap level %d (pitch %x) (dirty %d)\n",
2444	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2445
2446	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2447	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2448	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2449	{
2450	pState->ext.glCompressedTexImage3D(GL_TEXTURE_3D,
2451	i,
2452	pSurface->internalFormatGL,
2453	pMipLevel->mipmapSize.width,
2454	pMipLevel->mipmapSize.height,
2455	pMipLevel->mipmapSize.depth,
2456	0,
2457	pMipLevel->cbSurface,
2458	pMipLevel->pSurfaceData);
2459	}
2460	else
2461	{
2462	pState->ext.glTexImage3D(GL_TEXTURE_3D,
2463	i,
2464	pSurface->internalFormatGL,
2465	pMipLevel->mipmapSize.width,
2466	pMipLevel->mipmapSize.height,
2467	pMipLevel->mipmapSize.depth,
2468	0, /* border */
2469	pSurface->formatGL,
2470	pSurface->typeGL,
2471	pMipLevel->pSurfaceData);
2472	}
2473	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2474
2475	pMipLevel->fDirty = false;
2476	}
2477	}
2478	else if (target == GL_TEXTURE_CUBE_MAP)
2479	{
2480	for (uint32_t iFace = 0; iFace < 6; ++iFace)
2481	{
2482	GLenum const Face = vmsvga3dCubemapFaceFromIndex(iFace);
2483
2484	for (uint32_t i = 0; i < numMipLevels; ++i)
2485	{
2486	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[iFace * numMipLevels + i];
2487	Assert(pMipLevel->mipmapSize.width == pMipLevel->mipmapSize.height);
2488	Assert(pMipLevel->mipmapSize.depth == 1);
2489
2490	LogFunc(("sync cube texture face %d mipmap level %d (dirty %d)\n",
2491	iFace, i, pMipLevel->fDirty));
2492
2493	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2494	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2495	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2496	{
2497	pState->ext.glCompressedTexImage2D(Face,
2498	i,
2499	pSurface->internalFormatGL,
2500	pMipLevel->mipmapSize.width,
2501	pMipLevel->mipmapSize.height,
2502	0,
2503	pMipLevel->cbSurface,
2504	pMipLevel->pSurfaceData);
2505	}
2506	else
2507	{
2508	glTexImage2D(Face,
2509	i,
2510	pSurface->internalFormatGL,
2511	pMipLevel->mipmapSize.width,
2512	pMipLevel->mipmapSize.height,
2513	0,
2514	pSurface->formatGL,
2515	pSurface->typeGL,
2516	pMipLevel->pSurfaceData);
2517	}
2518	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2519
2520	pMipLevel->fDirty = false;
2521	}
2522	}
2523	}
2524	else if (target == GL_TEXTURE_2D)
2525	{
2526	for (uint32_t i = 0; i < numMipLevels; ++i)
2527	{
2528	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2529	* exposing random host memory to the guest and helps a with the fedora 21 surface
2530	* corruption issues (launchpad, background, search field, login).
2531	*/
2532	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->paMipmapLevels[i];
2533	Assert(pMipLevel->mipmapSize.depth == 1);
2534
2535	LogFunc(("sync dirty texture mipmap level %d (pitch %x) (dirty %d)\n",
2536	i, pMipLevel->cbSurfacePitch, pMipLevel->fDirty));
2537
2538	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2539	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2540	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2541	{
2542	pState->ext.glCompressedTexImage2D(GL_TEXTURE_2D,
2543	i,
2544	pSurface->internalFormatGL,
2545	pMipLevel->mipmapSize.width,
2546	pMipLevel->mipmapSize.height,
2547	0,
2548	pMipLevel->cbSurface,
2549	pMipLevel->pSurfaceData);
2550	}
2551	else
2552	{
2553	glTexImage2D(GL_TEXTURE_2D,
2554	i,
2555	pSurface->internalFormatGL,
2556	pMipLevel->mipmapSize.width,
2557	pMipLevel->mipmapSize.height,
2558	0,
2559	pSurface->formatGL,
2560	pSurface->typeGL,
2561	NULL);
2562	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2563
2564	if (pSurface->fEmulated)
2565	{
2566	/* Bind the emulated texture and init it. */
2567	glBindTexture(GL_TEXTURE_2D, pSurface->idEmulated);
2568	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2569
2570	glTexImage2D(GL_TEXTURE_2D,
2571	i,
2572	pSurface->internalFormatGL,
2573	pMipLevel->mipmapSize.width,
2574	pMipLevel->mipmapSize.height,
2575	0,
2576	pSurface->formatGL,
2577	pSurface->typeGL,
2578	NULL);
2579	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2580	}
2581
2582	/* Fetch texture data: either to the actual or to the emulated texture.
2583	* The pSurfaceData buffer may be smaller than the entire texture
2584	* for emulated formats, in which case only part of the texture is synched.
2585	*/
2586	uint32_t cBlocksX = pMipLevel->mipmapSize.width / pSurface->cxBlock;
2587	uint32_t cBlocksY = pMipLevel->mipmapSize.height / pSurface->cyBlock;
2588	glTexSubImage2D(GL_TEXTURE_2D,
2589	i,
2590	0,
2591	0,
2592	cBlocksX,
2593	cBlocksY,
2594	pSurface->formatGL,
2595	pSurface->typeGL,
2596	pMipLevel->pSurfaceData);
2597	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2598
2599	if (pSurface->fEmulated)
2600	{
2601	/* Update the actual texture using the format converter. */
2602	FormatConvUpdateTexture(pState, pContext, pSurface, i);
2603
2604	/* Rebind the actual texture. */
2605	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2606	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2607	}
2608	}
2609	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2610
2611	pMipLevel->fDirty = false;
2612	}
2613	}
2614
2615	pSurface->fDirty = false;
2616
2617	/* Restore unpacking parameters. */
2618	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
2619
2620	/* Restore the old active texture. */
2621	glBindTexture(target, activeTexture);
2622	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2623
2624	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2625	pSurface->targetGL = target;
2626	pSurface->bindingGL = binding;
2627
2628	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2629	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2630	return VINF_SUCCESS;
2631	}
2632
2633
2634	/**
2635	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2636	*
2637	* @returns VBox status code.
2638	* @param pThis The VGA device instance.
2639	* @param pState The VMSVGA3d state.
2640	* @param pDstSurface The destination host surface.
2641	* @param uDstFace The destination face (valid).
2642	* @param uDstMipmap The destination mipmap level (valid).
2643	* @param pDstBox The destination box.
2644	* @param pSrcSurface The source host surface.
2645	* @param uSrcFace The destination face (valid).
2646	* @param uSrcMipmap The source mimap level (valid).
2647	* @param pSrcBox The source box.
2648	* @param enmMode The strecht blt mode .
2649	* @param pContext The VMSVGA3d context (already current for OGL).
2650	*/
2651	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2652	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2653	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2654	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2655	{
2656	RT_NOREF(pThis);
2657
2658	AssertReturn( RT_BOOL(pSrcSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2659	== RT_BOOL(pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL), VERR_NOT_IMPLEMENTED);
2660
2661	GLenum glAttachment = GL_COLOR_ATTACHMENT0;
2662	GLbitfield glMask = GL_COLOR_BUFFER_BIT;
2663	if (pDstSurface->surfaceFlags & SVGA3D_SURFACE_HINT_DEPTHSTENCIL)
2664	{
2665	/** @todo Need GL_DEPTH_STENCIL_ATTACHMENT for depth/stencil formats? */
2666	glAttachment = GL_DEPTH_ATTACHMENT;
2667	glMask = GL_DEPTH_BUFFER_BIT;
2668	}
2669
2670	/* Activate the read and draw framebuffer objects. */
2671	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2672	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2673	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2674	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2675
2676	/* Bind the source and destination objects to the right place. */
2677	GLenum textarget;
2678	if (pSrcSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2679	textarget = vmsvga3dCubemapFaceFromIndex(uSrcFace);
2680	else
2681	{
2682	/// @todo later AssertMsg(pSrcSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSrcSurface->targetGL));
2683	textarget = GL_TEXTURE_2D;
2684	}
2685	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, glAttachment, textarget,
2686	pSrcSurface->oglId.texture, uSrcMipmap);
2687	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2688
2689	if (pDstSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2690	textarget = vmsvga3dCubemapFaceFromIndex(uDstFace);
2691	else
2692	{
2693	/// @todo later AssertMsg(pDstSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pDstSurface->targetGL));
2694	textarget = GL_TEXTURE_2D;
2695	}
2696	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, glAttachment, textarget,
2697	pDstSurface->oglId.texture, uDstMipmap);
2698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2699
2700	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n",
2701	pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2702	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y),
2703	pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2704	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2705
2706	pState->ext.glBlitFramebuffer(pSrcBox->x,
2707	pSrcBox->y,
2708	pSrcBox->x + pSrcBox->w, /* exclusive. */
2709	pSrcBox->y + pSrcBox->h,
2710	pDstBox->x,
2711	pDstBox->y,
2712	pDstBox->x + pDstBox->w, /* exclusive. */
2713	pDstBox->y + pDstBox->h,
2714	glMask,
2715	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2717
2718	/* Reset the frame buffer association */
2719	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2720	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2721
2722	return VINF_SUCCESS;
2723	}
2724
2725	/**
2726	* Save texture packing parameters and loads those appropriate for the given
2727	* surface.
2728	*
2729	* @param pState The VMSVGA3D state structure.
2730	* @param pContext The active context.
2731	* @param pSurface The surface.
2732	* @param pSave Where to save stuff.
2733	*/
2734	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2735	PVMSVGAPACKPARAMS pSave)
2736	{
2737	RT_NOREF(pState);
2738	/*
2739	* Save (ignore errors, setting the defaults we want and avoids restore).
2740	*/
2741	pSave->iAlignment = 1;
2742	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2743	pSave->cxRow = 0;
2744	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_PACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2745
2746	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2747	pSave->cyImage = 0;
2748	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2749	Assert(pSave->cyImage == 0);
2750
2751	pSave->fSwapBytes = GL_FALSE;
2752	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2753	Assert(pSave->fSwapBytes == GL_FALSE);
2754
2755	pSave->fLsbFirst = GL_FALSE;
2756	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2757	Assert(pSave->fLsbFirst == GL_FALSE);
2758
2759	pSave->cSkipRows = 0;
2760	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2761	Assert(pSave->cSkipRows == 0);
2762
2763	pSave->cSkipPixels = 0;
2764	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2765	Assert(pSave->cSkipPixels == 0);
2766
2767	pSave->cSkipImages = 0;
2768	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2769	Assert(pSave->cSkipImages == 0);
2770
2771	VMSVGA3D_CLEAR_GL_ERRORS();
2772	#endif
2773
2774	/*
2775	* Setup unpack.
2776	*
2777	* Note! We use 1 as alignment here because we currently don't do any
2778	* aligning of line pitches anywhere.
2779	*/
2780	NOREF(pSurface);
2781	if (pSave->iAlignment != 1)
2782	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2783	if (pSave->cxRow != 0)
2784	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2785	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2786	if (pSave->cyImage != 0)
2787	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2788	if (pSave->fSwapBytes != 0)
2789	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2790	if (pSave->fLsbFirst != 0)
2791	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2792	if (pSave->cSkipRows != 0)
2793	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2794	if (pSave->cSkipPixels != 0)
2795	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2796	if (pSave->cSkipImages != 0)
2797	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2798	#endif
2799	}
2800
2801
2802	/**
2803	* Restores texture packing parameters.
2804	*
2805	* @param pState The VMSVGA3D state structure.
2806	* @param pContext The active context.
2807	* @param pSurface The surface.
2808	* @param pSave Where stuff was saved.
2809	*/
2810	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2811	PCVMSVGAPACKPARAMS pSave)
2812	{
2813	RT_NOREF(pState, pSurface);
2814	if (pSave->iAlignment != 1)
2815	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2816	if (pSave->cxRow != 0)
2817	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2818	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2819	if (pSave->cyImage != 0)
2820	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2821	if (pSave->fSwapBytes != 0)
2822	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2823	if (pSave->fLsbFirst != 0)
2824	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2825	if (pSave->cSkipRows != 0)
2826	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2827	if (pSave->cSkipPixels != 0)
2828	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2829	if (pSave->cSkipImages != 0)
2830	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2831	#endif
2832	}
2833
2834
2835	/**
2836	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2837	*
2838	* @returns Failure status code or @a rc.
2839	* @param pThis The shared VGA/VMSVGA instance data.
2840	* @param pThisCC The VGA/VMSVGA state for ring-3.
2841	* @param pState The VMSVGA3d state.
2842	* @param pSurface The host surface.
2843	* @param pMipLevel Mipmap level. The caller knows it already.
2844	* @param uHostFace The host face (valid).
2845	* @param uHostMipmap The host mipmap level (valid).
2846	* @param GuestPtr The guest pointer.
2847	* @param cbGuestPitch The guest pitch.
2848	* @param transfer The transfer direction.
2849	* @param pBox The box to copy (clipped, valid, except for guest's srcx, srcy, srcz).
2850	* @param pContext The context (for OpenGL).
2851	* @param rc The current rc for all boxes.
2852	* @param iBox The current box number (for Direct 3D).
2853	*/
2854	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVGASTATECC pThisCC, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2855	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2856	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2857	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2858	{
2859	RT_NOREF(iBox);
2860
2861	switch (pSurface->enmOGLResType)
2862	{
2863	case VMSVGA3D_OGLRESTYPE_TEXTURE:
2864	{
2865	uint32_t cbSurfacePitch;
2866	uint8_t *pDoubleBuffer;
2867	uint64_t offHst;
2868
2869	uint32_t const u32HostBlockX = pBox->x / pSurface->cxBlock;
2870	uint32_t const u32HostBlockY = pBox->y / pSurface->cyBlock;
2871	uint32_t const u32HostZ = pBox->z;
2872	Assert(u32HostBlockX * pSurface->cxBlock == pBox->x);
2873	Assert(u32HostBlockY * pSurface->cyBlock == pBox->y);
2874
2875	uint32_t const u32GuestBlockX = pBox->srcx / pSurface->cxBlock;
2876	uint32_t const u32GuestBlockY = pBox->srcy / pSurface->cyBlock;
2877	uint32_t const u32GuestZ = pBox->srcz / pSurface->cyBlock;
2878	Assert(u32GuestBlockX * pSurface->cxBlock == pBox->srcx);
2879	Assert(u32GuestBlockY * pSurface->cyBlock == pBox->srcy);
2880
2881	uint32_t const cBlocksX = (pBox->w + pSurface->cxBlock - 1) / pSurface->cxBlock;
2882	uint32_t const cBlocksY = (pBox->h + pSurface->cyBlock - 1) / pSurface->cyBlock;
2883	AssertMsgReturn(cBlocksX && cBlocksY, ("Empty box %dx%d\n", pBox->w, pBox->h), VERR_INTERNAL_ERROR);
2884
2885	GLenum texImageTarget;
2886	if (pSurface->targetGL == GL_TEXTURE_3D)
2887	{
2888	texImageTarget = GL_TEXTURE_3D;
2889	}
2890	else if (pSurface->targetGL == GL_TEXTURE_CUBE_MAP)
2891	{
2892	texImageTarget = vmsvga3dCubemapFaceFromIndex(uHostFace);
2893	}
2894	else
2895	{
2896	AssertMsg(pSurface->targetGL == GL_TEXTURE_2D, ("%#x\n", pSurface->targetGL));
2897	texImageTarget = GL_TEXTURE_2D;
2898	}
2899
2900	/* The buffer must be large enough to hold entire texture in the OpenGL format. */
2901	pDoubleBuffer = (uint8_t )RTMemAlloc(pSurface->cbBlockGL pMipLevel->cBlocks);
2902	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2903
2904	if (transfer == SVGA3D_READ_HOST_VRAM)
2905	{
2906	/* Read the entire texture to the double buffer. */
2907	GLint activeTexture;
2908
2909	/* Must bind texture to the current context in order to read it. */
2910	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2911	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2912
2913	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2914	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2915
2916	if (pSurface->fEmulated)
2917	{
2918	FormatConvReadTexture(pState, pContext, pSurface, uHostMipmap);
2919	}
2920
2921	/* Set row length and alignment of the input data. */
2922	VMSVGAPACKPARAMS SavedParams;
2923	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2924
2925	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
2926	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
2927	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
2928	{
2929	pState->ext.glGetCompressedTexImage(texImageTarget, uHostMipmap, pDoubleBuffer);
2930	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2931	}
2932	else
2933	{
2934	glGetTexImage(texImageTarget, uHostMipmap, pSurface->formatGL, pSurface->typeGL, pDoubleBuffer);
2935	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2936	}
2937
2938	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2939
2940	/* Restore the old active texture. */
2941	glBindTexture(pSurface->targetGL, activeTexture);
2942	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2943
2944	offHst = u32HostBlockX * pSurface->cbBlock + u32HostBlockY * pMipLevel->cbSurfacePitch + u32HostZ * pMipLevel->cbSurfacePlane;
2945	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2946	}
2947	else
2948	{
2949	/* The buffer will contain only the copied rectangle. */
2950	offHst = 0;
2951	cbSurfacePitch = cBlocksX * pSurface->cbBlock;
2952	}
2953
2954	uint64_t offGst = u32GuestBlockX * pSurface->cbBlock + u32GuestBlockY * cbGuestPitch + u32GuestZ * cbGuestPitch * pMipLevel->mipmapSize.height;
2955
2956	for (uint32_t iPlane = 0; iPlane < pBox->d; ++iPlane)
2957	{
2958	AssertBreak(offHst < UINT32_MAX);
2959	AssertBreak(offGst < UINT32_MAX);
2960
2961	rc = vmsvgaR3GmrTransfer(pThis,
2962	pThisCC,
2963	transfer,
2964	pDoubleBuffer,
2965	pMipLevel->cbSurface,
2966	(uint32_t)offHst,
2967	cbSurfacePitch,
2968	GuestPtr,
2969	(uint32_t)offGst,
2970	cbGuestPitch,
2971	cBlocksX * pSurface->cbBlock,
2972	cBlocksY);
2973	AssertRC(rc);
2974
2975	offHst += pMipLevel->cbSurfacePlane;
2976	offGst += pMipLevel->mipmapSize.height * cbGuestPitch;
2977	}
2978
2979	/* Update the opengl surface data. */
2980	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2981	{
2982	GLint activeTexture = 0;
2983	glGetIntegerv(pSurface->bindingGL, &activeTexture);
2984	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2985
2986	/* Must bind texture to the current context in order to change it. */
2987	glBindTexture(pSurface->targetGL, GLTextureId(pSurface));
2988	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2989
2990	LogFunc(("copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2991
2992	/* Set row length and alignment of the input data. */
2993	/* We do not need to set ROW_LENGTH to w here, because the image in pDoubleBuffer is tightly packed. */
2994	VMSVGAPACKPARAMS SavedParams;
2995	vmsvga3dOglSetUnpackParams(pState, pContext, 0, 0, &SavedParams);
2996
2997	if (texImageTarget == GL_TEXTURE_3D)
2998	{
2999	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3000	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3001	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3002	{
3003	pState->ext.glCompressedTexSubImage3D(texImageTarget,
3004	uHostMipmap,
3005	pBox->x,
3006	pBox->y,
3007	pBox->z,
3008	pBox->w,
3009	pBox->h,
3010	pBox->d,
3011	pSurface->internalFormatGL,
3012	cbSurfacePitch * cBlocksY * pBox->d,
3013	pDoubleBuffer);
3014	}
3015	else
3016	{
3017	pState->ext.glTexSubImage3D(texImageTarget,
3018	uHostMipmap,
3019	u32HostBlockX,
3020	u32HostBlockY,
3021	pBox->z,
3022	cBlocksX,
3023	cBlocksY,
3024	pBox->d,
3025	pSurface->formatGL,
3026	pSurface->typeGL,
3027	pDoubleBuffer);
3028	}
3029	}
3030	else
3031	{
3032	if ( pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
3033	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
3034	\|\| pSurface->internalFormatGL == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
3035	{
3036	pState->ext.glCompressedTexSubImage2D(texImageTarget,
3037	uHostMipmap,
3038	pBox->x,
3039	pBox->y,
3040	pBox->w,
3041	pBox->h,
3042	pSurface->internalFormatGL,
3043	cbSurfacePitch * cBlocksY,
3044	pDoubleBuffer);
3045	}
3046	else
3047	{
3048	glTexSubImage2D(texImageTarget,
3049	uHostMipmap,
3050	u32HostBlockX,
3051	u32HostBlockY,
3052	cBlocksX,
3053	cBlocksY,
3054	pSurface->formatGL,
3055	pSurface->typeGL,
3056	pDoubleBuffer);
3057	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3058
3059	if (pSurface->fEmulated)
3060	{
3061	/* Convert the texture to the actual texture if necessary */
3062	FormatConvUpdateTexture(pState, pContext, pSurface, uHostMipmap);
3063	}
3064	}
3065	}
3066	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3067
3068	/* Restore old values. */
3069	vmsvga3dOglRestoreUnpackParams(pState, pContext, &SavedParams);
3070
3071	/* Restore the old active texture. */
3072	glBindTexture(pSurface->targetGL, activeTexture);
3073	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
3074	}
3075
3076	Log4(("first line:\n%.Rhxd\n", cBlocksX pSurface->cbBlock, pDoubleBuffer));
3077
3078	/* Free the double buffer. */
3079	RTMemFree(pDoubleBuffer);
3080	break;
3081	}
3082
3083	case VMSVGA3D_OGLRESTYPE_BUFFER:
3084	{
3085	/* Buffers are uncompressed. */
3086	AssertReturn(pSurface->cxBlock == 1 && pSurface->cyBlock == 1, VERR_INTERNAL_ERROR);
3087
3088	/* Caller already clipped pBox and buffers are 1-dimensional. */
3089	Assert(pBox->y == 0 && pBox->h == 1 && pBox->z == 0 && pBox->d == 1);
3090
3091	VMSVGA3D_CLEAR_GL_ERRORS();
3092	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
3093	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
3094	{
3095	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
3096	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
3097	if (RT_LIKELY(pbData != NULL))
3098	{
3099	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
3100	GLint cbStrictBufSize;
3101	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
3102	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
3103	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
3104	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
3105	#endif
3106	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
3107	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
3108	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
3109	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
3110
3111	/* The caller already copied the data to the pMipLevel->pSurfaceData buffer, see VMSVGA3DSURFACE_NEEDS_DATA. */
3112	uint32_t const offHst = pBox->x * pSurface->cbBlock;
3113	uint32_t const cbWidth = pBox->w * pSurface->cbBlock;
3114
3115	memcpy(pbData + offHst, (uint8_t *)pMipLevel->pSurfaceData + offHst, cbWidth);
3116
3117	Log4(("Buffer updated at [0x%x;0x%x):\n%.Rhxd\n", offHst, offHst + cbWidth, cbWidth, (uint8_t )pbData + offHst));
3118
3119	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
3120	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3121	}
3122	else
3123	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
3124	}
3125	else
3126	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
3127	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
3128	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3129	break;
3130	}
3131
3132	default:
3133	AssertFailed();
3134	break;
3135	}
3136
3137	return rc;
3138	}
3139
3140	int vmsvga3dGenerateMipmaps(PVGASTATECC pThisCC, uint32_t sid, SVGA3dTextureFilter filter)
3141	{
3142	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3143	PVMSVGA3DSURFACE pSurface;
3144	int rc = VINF_SUCCESS;
3145	PVMSVGA3DCONTEXT pContext;
3146	uint32_t cid;
3147	GLint activeTexture = 0;
3148
3149	AssertReturn(pState, VERR_NO_MEMORY);
3150
3151	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
3152	AssertRCReturn(rc, rc);
3153
3154	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
3155	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
3156	pSurface->autogenFilter = filter;
3157
3158	LogFunc(("sid=%u filter=%d\n", sid, filter));
3159
3160	cid = SVGA3D_INVALID_ID;
3161	pContext = &pState->SharedCtx;
3162	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3163
3164	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
3165	{
3166	/* Unknown surface type; turn it into a texture. */
3167	LogFunc(("unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
3168	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
3169	AssertRCReturn(rc, rc);
3170	}
3171	else
3172	{
3173	/** @todo new filter */
3174	AssertFailed();
3175	}
3176
3177	glGetIntegerv(pSurface->bindingGL, &activeTexture);
3178	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3179
3180	/* Must bind texture to the current context in order to change it. */
3181	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
3182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3183
3184	/* Generate the mip maps. */
3185	pState->ext.glGenerateMipmap(pSurface->targetGL);
3186	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3187
3188	/* Restore the old texture. */
3189	glBindTexture(pSurface->targetGL, activeTexture);
3190	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3191
3192	return VINF_SUCCESS;
3193	}
3194
3195
3196	#ifdef RT_OS_LINUX
3197	/**
3198	* X11 event handling thread.
3199	*
3200	* @returns VINF_SUCCESS (ignored)
3201	* @param hThreadSelf thread handle
3202	* @param pvUser pointer to pState structure
3203	*/
3204	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3205	{
3206	RT_NOREF(hThreadSelf);
3207	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3208	while (!pState->bTerminate)
3209	{
3210	while (XPending(pState->display) > 0)
3211	{
3212	XEvent event;
3213	XNextEvent(pState->display, &event);
3214
3215	switch (event.type)
3216	{
3217	default:
3218	break;
3219	}
3220	}
3221	/* sleep for 16ms to not burn too many cycles */
3222	RTThreadSleep(16);
3223	}
3224	return VINF_SUCCESS;
3225	}
3226	#endif // RT_OS_LINUX
3227
3228
3229	/**
3230	* Create a new 3d context
3231	*
3232	* @returns VBox status code.
3233	* @param pThisCC The VGA/VMSVGA state for ring-3.
3234	* @param cid Context id
3235	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3236	*/
3237	int vmsvga3dContextDefineOgl(PVGASTATECC pThisCC, uint32_t cid, uint32_t fFlags)
3238	{
3239	int rc;
3240	PVMSVGA3DCONTEXT pContext;
3241	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3242
3243	AssertReturn(pState, VERR_NO_MEMORY);
3244	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3245	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3246	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3247	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3248	#endif
3249
3250	Log(("vmsvga3dContextDefine id %x\n", cid));
3251
3252	if (cid == VMSVGA3D_SHARED_CTX_ID)
3253	pContext = &pState->SharedCtx;
3254	else
3255	{
3256	if (cid >= pState->cContexts)
3257	{
3258	/* Grow the array. */
3259	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3260	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3261	AssertReturn(pvNew, VERR_NO_MEMORY);
3262	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3263	while (pState->cContexts < cNew)
3264	{
3265	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3266	AssertReturn(pContext, VERR_NO_MEMORY);
3267	pContext->id = SVGA3D_INVALID_ID;
3268	pState->papContexts[pState->cContexts++] = pContext;
3269	}
3270	}
3271	/* If one already exists with this id, then destroy it now. */
3272	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3273	vmsvga3dContextDestroy(pThisCC, cid);
3274
3275	pContext = pState->papContexts[cid];
3276	}
3277
3278	/*
3279	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3280	*/
3281	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3282	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3283	{
3284	pSharedCtx = &pState->SharedCtx;
3285	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3286	{
3287	rc = vmsvga3dContextDefineOgl(pThisCC, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3288	AssertLogRelRCReturn(rc, rc);
3289
3290	/* Create resources which use the shared context. */
3291	vmsvga3dOnSharedContextDefine(pState);
3292	}
3293	}
3294
3295	/*
3296	* Initialize the context.
3297	*/
3298	memset(pContext, 0, sizeof(*pContext));
3299	pContext->id = cid;
3300	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3301	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3302
3303	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3304	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3305	pContext->idFramebuffer = OPENGL_INVALID_ID;
3306	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3307	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3308
3309	rc = ShaderContextCreate(&pContext->pShaderContext);
3310	AssertRCReturn(rc, rc);
3311
3312	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3313	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3314
3315	#ifdef RT_OS_WINDOWS
3316	/* Create a context window with minimal 4x4 size. We will never use the swapchain
3317	* to present the rendered image. Rendered images from the guest will be copied to
3318	* the VMSVGA SCREEN object, which can be either an offscreen render target or
3319	* system memory in the guest VRAM.
3320	*/
3321	rc = vmsvga3dContextWindowCreate(pState->hInstance, pState->pWindowThread, pState->WndRequestSem, &pContext->hwnd);
3322	AssertRCReturn(rc, rc);
3323
3324	pContext->hdc = GetDC(pContext->hwnd);
3325	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3326
3327	PIXELFORMATDESCRIPTOR pfd = {
3328	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3329	1, /* version number */
3330	PFD_DRAW_TO_WINDOW \| /* support window */
3331	PFD_SUPPORT_OPENGL, /* support OpenGL */
3332	PFD_TYPE_RGBA, /* RGBA type */
3333	24, /* 24-bit color depth */
3334	0, 0, 0, 0, 0, 0, /* color bits ignored */
3335	8, /* alpha buffer */
3336	0, /* shift bit ignored */
3337	0, /* no accumulation buffer */
3338	0, 0, 0, 0, /* accum bits ignored */
3339	16, /* set depth buffer */
3340	16, /* set stencil buffer */
3341	0, /* no auxiliary buffer */
3342	PFD_MAIN_PLANE, /* main layer */
3343	0, /* reserved */
3344	0, 0, 0 /* layer masks ignored */
3345	};
3346	int pixelFormat;
3347	BOOL ret;
3348
3349	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3350	/** @todo is this really necessary?? */
3351	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3352	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3353
3354	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3355	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3356
3357	pContext->hglrc = wglCreateContext(pContext->hdc);
3358	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3359
3360	if (pSharedCtx)
3361	{
3362	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3363	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3364	}
3365
3366	#elif defined(RT_OS_DARWIN)
3367	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3368
3369	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3370	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3371	NULL,
3372	4, 4,
3373	pShareContext, pContext->fOtherProfile);
3374
3375	#else
3376	if (pState->display == NULL)
3377	{
3378	/* get an X display and make sure we have glX 1.3 */
3379	pState->display = XOpenDisplay(0);
3380	AssertLogRelMsgReturn(pState->display, ("XOpenDisplay failed"), VERR_INTERNAL_ERROR);
3381	int glxMajor, glxMinor;
3382	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3383	AssertLogRelMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3384	/* start our X event handling thread */
3385	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3386	AssertLogRelMsgReturn(RT_SUCCESS(rc), ("Async IO Thread creation for 3d window handling failed rc=%Rrc\n", rc), rc);
3387	}
3388
3389	Window defaultRootWindow = XDefaultRootWindow(pState->display);
3390	/* Create a small 4x4 window required for GL context. */
3391	int attrib[] =
3392	{
3393	GLX_RGBA,
3394	GLX_RED_SIZE, 1,
3395	GLX_GREEN_SIZE, 1,
3396	GLX_BLUE_SIZE, 1,
3397	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3398	GLX_DOUBLEBUFFER,
3399	None
3400	};
3401	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3402	AssertLogRelMsgReturn(vi, ("glXChooseVisual failed"), VERR_INTERNAL_ERROR);
3403	XSetWindowAttributes swa;
3404	swa.colormap = XCreateColormap(pState->display, defaultRootWindow, vi->visual, AllocNone);
3405	AssertLogRelMsgReturn(swa.colormap, ("XCreateColormap failed"), VERR_INTERNAL_ERROR);
3406	swa.border_pixel = 0;
3407	swa.background_pixel = 0;
3408	swa.event_mask = StructureNotifyMask;
3409	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3410	pContext->window = XCreateWindow(pState->display, defaultRootWindow,
3411	0, 0, 4, 4,
3412	0, vi->depth, InputOutput,
3413	vi->visual, flags, &swa);
3414	AssertLogRelMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3415
3416	/* The window is hidden by default and never mapped, because we only render offscreen and never present to it. */
3417
3418	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3419	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3420	AssertLogRelMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3421	#endif
3422
3423	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3424
3425	/* NULL during the first PowerOn call. */
3426	if (pState->ext.glGenFramebuffers)
3427	{
3428	/* Create a framebuffer object for this context. */
3429	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3431
3432	/* Bind the object to the framebuffer target. */
3433	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3435
3436	/* Create read and draw framebuffer objects for this context. */
3437	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3439
3440	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3441	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3442
3443	}
3444	#if 0
3445	/** @todo move to shader lib!!! */
3446	/* Clear the screen */
3447	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3448
3449	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3450	glClearIndex(0);
3451	glClearDepth(1);
3452	glClearStencil(0xffff);
3453	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3454	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3455	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3456	if (pState->ext.glProvokingVertex)
3457	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3458	/** @todo move to shader lib!!! */
3459	#endif
3460	return VINF_SUCCESS;
3461	}
3462
3463	#if defined(RT_OS_LINUX)
3464	/*
3465	* HW accelerated graphics output.
3466	*/
3467
3468	/**
3469	* VMSVGA3d screen data.
3470	*
3471	* Allocated on the heap and pointed to by VMSVGASCREENOBJECT::pHwScreen.
3472	*/
3473	typedef struct VMSVGAHWSCREEN
3474	{
3475	/* OpenGL context, which is used for the screen updates. */
3476	GLXContext glxctx;
3477
3478	/* The overlay window. */
3479	Window xwindow;
3480
3481	/* The RGBA texture which hold the screen content. */
3482	GLuint idScreenTexture;
3483
3484	/* Read and draw framebuffer objects for copying a surface to the screen texture. */
3485	GLuint idReadFramebuffer;
3486	GLuint idDrawFramebuffer;
3487	} VMSVGAHWSCREEN;
3488
3489	/* Send a notification to the UI. */
3490	#if 0 /* Unused */
3491	static int vmsvga3dDrvNotifyHwScreen(PVGASTATECC pThisCC, VBOX3D_NOTIFY_TYPE enmNotification,
3492	uint32_t idScreen, Pixmap pixmap, void *pvData, size_t cbData)
3493	{
3494	uint8_t au8Buffer[128];
3495	AssertLogRelMsgReturn(cbData <= sizeof(au8Buffer) - sizeof(VBOX3DNOTIFY),
3496	("cbData %zu", cbData),
3497	VERR_INVALID_PARAMETER);
3498
3499	VBOX3DNOTIFY p = (VBOX3DNOTIFY )&au8Buffer[0];
3500	p->enmNotification = enmNotification;
3501	p->iDisplay = idScreen;
3502	p->u32Reserved = 0;
3503	p->cbData = cbData + sizeof(uint64_t);
3504	/* au8Data consists of a 64 bit pixmap handle followed by notification specific data. */
3505	AssertCompile(sizeof(pixmap) <= sizeof(uint64_t));
3506	(uint64_t )&p->au8Data[0] = (uint64_t)pixmap;
3507	memcpy(&p->au8Data[sizeof(uint64_t)], pvData, cbData);
3508
3509	int rc = pThisCC->pDrv->pfn3DNotifyProcess(pThisCC->pDrv, p);
3510	return rc;
3511	}
3512	#endif /* Unused */
3513
3514	static void vmsvga3dDrvNotifyHwOverlay(PVGASTATECC pThisCC, VBOX3D_NOTIFY_TYPE enmNotification, uint32_t idScreen)
3515	{
3516	uint8_t au8Buffer[128];
3517	VBOX3DNOTIFY p = (VBOX3DNOTIFY )&au8Buffer[0];
3518	p->enmNotification = enmNotification;
3519	p->iDisplay = idScreen;
3520	p->u32Reserved = 0;
3521	p->cbData = sizeof(uint64_t);
3522	(uint64_t )&p->au8Data[0] = 0;
3523
3524	pThisCC->pDrv->pfn3DNotifyProcess(pThisCC->pDrv, p);
3525	}
3526
3527	/* Get X Window handle of the UI Framebuffer window. */
3528	static int vmsvga3dDrvQueryWindow(PVGASTATECC pThisCC, uint32_t idScreen, Window *pWindow)
3529	{
3530	uint8_t au8Buffer[128];
3531	VBOX3DNOTIFY p = (VBOX3DNOTIFY )&au8Buffer[0];
3532	p->enmNotification = VBOX3D_NOTIFY_TYPE_HW_OVERLAY_GET_ID;
3533	p->iDisplay = idScreen;
3534	p->u32Reserved = 0;
3535	p->cbData = sizeof(uint64_t);
3536	(uint64_t )&p->au8Data[0] = 0;
3537
3538	int rc = pThisCC->pDrv->pfn3DNotifyProcess(pThisCC->pDrv, p);
3539	if (RT_SUCCESS(rc))
3540	{
3541	pWindow = (Window)(uint64_t *)&p->au8Data[0];
3542	}
3543	return rc;
3544	}
3545
3546	static int ctxErrorHandler(Display dpy, XErrorEvent ev)
3547	{
3548	RT_NOREF(dpy);
3549	LogRel4(("VMSVGA: XError %d\n", (int)ev->error_code));
3550	return 0;
3551	}
3552
3553	/* Create an overlay X window for the HW accelerated screen. */
3554	static int vmsvga3dHwScreenCreate(PVMSVGA3DSTATE pState, Window parentWindow, unsigned int cWidth, unsigned int cHeight, VMSVGAHWSCREEN *p)
3555	{
3556	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3557
3558	int rc = VINF_SUCCESS;
3559
3560	XWindowAttributes parentAttr;
3561	if (XGetWindowAttributes(pState->display, parentWindow, &parentAttr) == 0)
3562	return VERR_INVALID_PARAMETER;
3563
3564	int const idxParentScreen = XScreenNumberOfScreen(parentAttr.screen);
3565
3566	/*
3567	* Create a new GL context, which will be used for copying to the screen.
3568	*/
3569
3570	/* FBConfig attributes for the overlay window. */
3571	static int const aConfigAttribList[] =
3572	{
3573	GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT, // Must support GLX windows
3574	GLX_DOUBLEBUFFER, False, // Double buffering had a much lower performance.
3575	GLX_RED_SIZE, 8, // True color RGB with 8 bits per channel.
3576	GLX_GREEN_SIZE, 8,
3577	GLX_BLUE_SIZE, 8,
3578	GLX_ALPHA_SIZE, 8,
3579	GLX_STENCIL_SIZE, 0, // No stencil buffer
3580	GLX_DEPTH_SIZE, 0, // No depth buffer
3581	None
3582	};
3583
3584	/* Find a suitable FB config. */
3585	int cConfigs = 0;
3586	GLXFBConfig *paConfigs = glXChooseFBConfig(pState->display, idxParentScreen, aConfigAttribList, &cConfigs);
3587	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: paConfigs %p cConfigs %d\n", (void *)paConfigs, cConfigs));
3588	if (paConfigs)
3589	{
3590	XVisualInfo *vi = NULL;
3591	int i = 0;
3592	for (; i < cConfigs; ++i)
3593	{
3594	/* Use XFree to free the data returned in the previous iteration of this loop. */
3595	if (vi)
3596	XFree(vi);
3597
3598	vi = glXGetVisualFromFBConfig(pState->display, paConfigs[i]);
3599	if (!vi)
3600	continue;
3601
3602	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: %p vid %lu screen %d depth %d r %lu g %lu b %lu clrmap %d bitsperrgb %d\n",
3603	(void *)vi->visual, vi->visualid, vi->screen, vi->depth,
3604	vi->red_mask, vi->green_mask, vi->blue_mask, vi->colormap_size, vi->bits_per_rgb));
3605
3606	/* Same screen as the parent window. */
3607	if (vi->screen != idxParentScreen)
3608	continue;
3609
3610	/* Search for 32 bits per pixel. */
3611	if (vi->depth != 32)
3612	continue;
3613
3614	/* 8 bits per color component is enough. */
3615	if (vi->bits_per_rgb != 8)
3616	continue;
3617
3618	/* Render to pixmap. */
3619	int value = 0;
3620	glXGetFBConfigAttrib(pState->display, paConfigs[i], GLX_DRAWABLE_TYPE, &value);
3621	if (!(value & GLX_WINDOW_BIT))
3622	continue;
3623
3624	/* This FB config can be used. */
3625	break;
3626	}
3627
3628	if (i < cConfigs)
3629	{
3630	/* Found a suitable config with index i. */
3631
3632	/* Create an overlay window. */
3633	XSetWindowAttributes swa;
3634	RT_ZERO(swa);
3635
3636	swa.colormap = XCreateColormap(pState->display, parentWindow, vi->visual, AllocNone);
3637	AssertLogRelMsg(swa.colormap, ("XCreateColormap failed"));
3638	swa.border_pixel = 0;
3639	swa.background_pixel = 0;
3640	swa.event_mask = StructureNotifyMask;
3641	swa.override_redirect = 1;
3642	unsigned long const swaAttrs = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask \| CWOverrideRedirect;
3643	p->xwindow = XCreateWindow(pState->display, parentWindow,
3644	0, 0, cWidth, cHeight, 0, vi->depth, InputOutput,
3645	vi->visual, swaAttrs, &swa);
3646	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: p->xwindow %ld\n", p->xwindow));
3647	if (p->xwindow)
3648	{
3649
3650	p->glxctx = glXCreateContext(pState->display, vi, pState->SharedCtx.glxContext, GL_TRUE);
3651	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: p->glxctx %p\n", (void *)p->glxctx));
3652	if (p->glxctx)
3653	{
3654	XMapWindow(pState->display, p->xwindow);
3655	}
3656	else
3657	{
3658	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: glXCreateContext failed\n"));
3659	rc = VERR_NOT_SUPPORTED;
3660	}
3661	}
3662	else
3663	{
3664	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: XCreateWindow failed\n"));
3665	rc = VERR_NOT_SUPPORTED;
3666	}
3667
3668	XSync(pState->display, False);
3669	}
3670	else
3671	{
3672	/* A suitable config is not found. */
3673	LogRel4(("VMSVGA: vmsvga3dHwScreenCreate: no FBConfig\n"));
3674	rc = VERR_NOT_SUPPORTED;
3675	}
3676
3677	if (vi)
3678	XFree(vi);
3679
3680	/* "Use XFree to free the memory returned by glXChooseFBConfig." */
3681	XFree(paConfigs);
3682	}
3683	else
3684	{
3685	/* glXChooseFBConfig failed. */
3686	rc = VERR_NOT_SUPPORTED;
3687	}
3688
3689	XSetErrorHandler(oldHandler);
3690	return rc;
3691	}
3692
3693	/* Destroy a HW accelerated screen. */
3694	static void vmsvga3dHwScreenDestroy(PVMSVGA3DSTATE pState, VMSVGAHWSCREEN *p)
3695	{
3696	if (p)
3697	{
3698	LogRel4(("VMSVGA: vmsvga3dHwScreenDestroy: p->xwindow %ld, ctx %p\n", p->xwindow, (void *)p->glxctx));
3699	if (p->glxctx)
3700	{
3701	/* GLX context is changed here, so other code has to set the appropriate context again. */
3702	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3703
3704	glXMakeCurrent(pState->display, p->xwindow, p->glxctx);
3705
3706	/* Clean up OpenGL. */
3707	if (p->idReadFramebuffer != OPENGL_INVALID_ID)
3708	pState->ext.glDeleteFramebuffers(1, &p->idReadFramebuffer);
3709	if (p->idDrawFramebuffer != OPENGL_INVALID_ID)
3710	pState->ext.glDeleteFramebuffers(1, &p->idDrawFramebuffer);
3711	if (p->idScreenTexture != OPENGL_INVALID_ID)
3712	glDeleteTextures(1, &p->idScreenTexture);
3713
3714	glXMakeCurrent(pState->display, None, NULL);
3715
3716	glXDestroyContext(pState->display, p->glxctx);
3717	}
3718
3719	if (p->xwindow)
3720	XDestroyWindow(pState->display, p->xwindow);
3721
3722	RT_ZERO(*p);
3723	}
3724	}
3725
3726	#define GLCHECK() \
3727	do { \
3728	int glErr = glGetError(); \
3729	if (glErr != GL_NO_ERROR) LogRel4(("VMSVGA: GL error 0x%x @%d\n", glErr, __LINE__)); \
3730	} while(0)
3731
3732	int vmsvga3dBackDefineScreen(PVGASTATE pThis, PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3733	{
3734	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: screen %u\n", pScreen->idScreen));
3735
3736	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3737	AssertReturn(pState, VERR_NOT_SUPPORTED);
3738
3739	if (!pThis->svga.f3DOverlayEnabled)
3740	return VERR_NOT_SUPPORTED;
3741
3742	Assert(pScreen->pHwScreen == NULL);
3743
3744	VMSVGAHWSCREEN p = (VMSVGAHWSCREEN )RTMemAllocZ(sizeof(VMSVGAHWSCREEN));
3745	AssertPtrReturn(p, VERR_NO_MEMORY);
3746
3747	/* Query the parent window ID from the UI framebuffer.
3748	* If it is there then
3749	* the device will create a texture for the screen content and an overlay window to present the screen content.
3750	* otherwise
3751	* the device will use the guest VRAM system memory for the screen content.
3752	*/
3753	Window parentWindow;
3754	int rc = vmsvga3dDrvQueryWindow(pThisCC, pScreen->idScreen, &parentWindow);
3755	if (RT_SUCCESS(rc))
3756	{
3757	/* Create the hardware accelerated screen. */
3758	rc = vmsvga3dHwScreenCreate(pState, parentWindow, pScreen->cWidth, pScreen->cHeight, p);
3759	if (RT_SUCCESS(rc))
3760	{
3761	/*
3762	* Setup the OpenGL context of the screen. The context will be used to draw on the screen.
3763	*/
3764
3765	/* GLX context is changed here, so other code has to set the appropriate context again. */
3766	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3767
3768	Bool const fSuccess = glXMakeCurrent(pState->display, p->xwindow, p->glxctx);
3769	if (fSuccess)
3770	{
3771	/* Set GL state. */
3772	glClearColor(0, 0, 0, 1);
3773	glEnable(GL_TEXTURE_2D);
3774	glDisable(GL_DEPTH_TEST);
3775	glDisable(GL_CULL_FACE);
3776
3777	/* The RGBA texture which hold the screen content. */
3778	glGenTextures(1, &p->idScreenTexture); GLCHECK();
3779	glBindTexture(GL_TEXTURE_2D, p->idScreenTexture); GLCHECK();
3780	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); GLCHECK();
3781	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); GLCHECK();
3782	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, pScreen->cWidth, pScreen->cHeight, 0,
3783	GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL); GLCHECK();
3784
3785	/* Create read and draw framebuffer objects for this screen. */
3786	pState->ext.glGenFramebuffers(1, &p->idReadFramebuffer); GLCHECK();
3787	pState->ext.glGenFramebuffers(1, &p->idDrawFramebuffer); GLCHECK();
3788
3789	/* Work in screen coordinates. */
3790	glMatrixMode(GL_MODELVIEW);
3791	glLoadIdentity();
3792	glOrtho(0, pScreen->cWidth, 0, pScreen->cHeight, -1, 1);
3793	glMatrixMode(GL_PROJECTION);
3794	glLoadIdentity();
3795
3796	/* Clear the texture. */
3797	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, p->idDrawFramebuffer); GLCHECK();
3798	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3799	p->idScreenTexture, 0); GLCHECK();
3800
3801	glClear(GL_COLOR_BUFFER_BIT);
3802
3803	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); GLCHECK();
3804
3805	glXMakeCurrent(pState->display, None, NULL);
3806
3807	XSync(pState->display, False);
3808
3809	vmsvga3dDrvNotifyHwOverlay(pThisCC, VBOX3D_NOTIFY_TYPE_HW_OVERLAY_CREATED, pScreen->idScreen);
3810	}
3811	else
3812	{
3813	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: failed to set current context\n"));
3814	rc = VERR_NOT_SUPPORTED;
3815	}
3816	}
3817	}
3818	else
3819	{
3820	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: no framebuffer\n"));
3821	}
3822
3823	if (RT_SUCCESS(rc))
3824	{
3825	LogRel(("VMSVGA: Using HW accelerated screen %u\n", pScreen->idScreen));
3826	pScreen->pHwScreen = p;
3827	}
3828	else
3829	{
3830	LogRel4(("VMSVGA: vmsvga3dBackDefineScreen: %Rrc\n", rc));
3831	vmsvga3dHwScreenDestroy(pState, p);
3832	RTMemFree(p);
3833	}
3834
3835	return rc;
3836	}
3837
3838	int vmsvga3dBackDestroyScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3839	{
3840	LogRel4(("VMSVGA: vmsvga3dBackDestroyScreen: screen %u\n", pScreen->idScreen));
3841
3842	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3843	AssertReturn(pState, VERR_NOT_SUPPORTED);
3844
3845	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3846
3847	VMSVGAHWSCREEN *p = pScreen->pHwScreen;
3848	if (p)
3849	{
3850	pScreen->pHwScreen = NULL;
3851
3852	vmsvga3dDrvNotifyHwOverlay(pThisCC, VBOX3D_NOTIFY_TYPE_HW_OVERLAY_DESTROYED, pScreen->idScreen);
3853
3854	vmsvga3dHwScreenDestroy(pState, p);
3855	RTMemFree(p);
3856	}
3857
3858	XSetErrorHandler(oldHandler);
3859
3860	return VINF_SUCCESS;
3861	}
3862
3863	/* Blit a surface to the GLX pixmap. */
3864	int vmsvga3dBackSurfaceBlitToScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen,
3865	SVGASignedRect destRect, SVGA3dSurfaceImageId srcImage,
3866	SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *paRects)
3867	{
3868	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
3869	AssertReturn(pState, VERR_NOT_SUPPORTED);
3870
3871	VMSVGAHWSCREEN *p = pScreen->pHwScreen;
3872	AssertReturn(p, VERR_NOT_SUPPORTED);
3873
3874	PVMSVGA3DSURFACE pSurface;
3875	int rc = vmsvga3dSurfaceFromSid(pState, srcImage.sid, &pSurface);
3876	AssertRCReturn(rc, rc);
3877
3878	if (!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface))
3879	{
3880	LogFunc(("src sid=%u flags=0x%x format=%d -> create texture\n", srcImage.sid, pSurface->surfaceFlags, pSurface->format));
3881	rc = vmsvga3dBackCreateTexture(pState, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID, pSurface);
3882	AssertRCReturn(rc, rc);
3883	}
3884
3885	AssertReturn(pSurface->enmOGLResType == VMSVGA3D_OGLRESTYPE_TEXTURE, VERR_NOT_SUPPORTED);
3886
3887	PVMSVGA3DMIPMAPLEVEL pMipLevel;
3888	rc = vmsvga3dMipmapLevel(pSurface, srcImage.face, srcImage.mipmap, &pMipLevel);
3889	AssertRCReturn(rc, rc);
3890
3891	/** @todo Implement. */
3892	RT_NOREF(cRects, paRects);
3893
3894	/* GLX context is changed here, so other code has to set appropriate context again. */
3895	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3896
3897	int (oldHandler)(Display, XErrorEvent*) = XSetErrorHandler(&ctxErrorHandler);
3898
3899	Bool fSuccess = glXMakeCurrent(pState->display, p->xwindow, p->glxctx);
3900	if (fSuccess)
3901	{
3902	/* Activate the read and draw framebuffer objects. */
3903	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, p->idReadFramebuffer); GLCHECK();
3904	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, p->idDrawFramebuffer); GLCHECK();
3905
3906	/* Bind the source and destination objects to the right place. */
3907	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3908	pSurface->oglId.texture, 0); GLCHECK();
3909	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
3910	p->idScreenTexture, 0); GLCHECK();
3911
3912	pState->ext.glBlitFramebuffer(srcRect.left,
3913	srcRect.top,
3914	srcRect.right,
3915	srcRect.bottom,
3916	destRect.left,
3917	destRect.top,
3918	destRect.right,
3919	destRect.bottom,
3920	GL_COLOR_BUFFER_BIT,
3921	GL_NEAREST); GLCHECK();
3922
3923	/* Reset the frame buffer association */
3924	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0); GLCHECK();
3925
3926	/* Update the overlay window. */
3927	glClear(GL_COLOR_BUFFER_BIT);
3928
3929	glBindTexture(GL_TEXTURE_2D, p->idScreenTexture); GLCHECK();
3930
3931	GLint const w = pScreen->cWidth;
3932	GLint const h = pScreen->cHeight;
3933
3934	glBegin(GL_QUADS);
3935	glTexCoord2f(0.0f, 0.0f); glVertex2i(0, h);
3936	glTexCoord2f(0.0f, 1.0f); glVertex2i(0, 0);
3937	glTexCoord2f(1.0f, 1.0f); glVertex2i(w, 0);
3938	glTexCoord2f(1.0f, 0.0f); glVertex2i(w, h);
3939	glEnd(); GLCHECK();
3940
3941	glBindTexture(GL_TEXTURE_2D, 0); GLCHECK();
3942
3943	glXMakeCurrent(pState->display, None, NULL);
3944	}
3945	else
3946	{
3947	LogRel4(("VMSVGA: vmsvga3dBackSurfaceBlitToScreen: screen %u, glXMakeCurrent for pixmap failed\n", pScreen->idScreen));
3948	}
3949
3950	XSetErrorHandler(oldHandler);
3951
3952	return VINF_SUCCESS;
3953	}
3954
3955	#else /* !RT_OS_LINUX */
3956
3957	int vmsvga3dBackDefineScreen(PVGASTATE pThis, PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3958	{
3959	RT_NOREF(pThis, pThisCC, pScreen);
3960	return VERR_NOT_IMPLEMENTED;
3961	}
3962
3963	int vmsvga3dBackDestroyScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen)
3964	{
3965	RT_NOREF(pThisCC, pScreen);
3966	return VERR_NOT_IMPLEMENTED;
3967	}
3968
3969	int vmsvga3dBackSurfaceBlitToScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen,
3970	SVGASignedRect destRect, SVGA3dSurfaceImageId srcImage,
3971	SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *paRects)
3972	{
3973	RT_NOREF(pThisCC, pScreen, destRect, srcImage, srcRect, cRects, paRects);
3974	return VERR_NOT_IMPLEMENTED;
3975	}
3976	#endif
3977
3978	/**
3979	* Create a new 3d context
3980	*
3981	* @returns VBox status code.
3982	* @param pThisCC The VGA/VMSVGA state for ring-3.
3983	* @param cid Context id
3984	*/
3985	int vmsvga3dContextDefine(PVGASTATECC pThisCC, uint32_t cid)
3986	{
3987	return vmsvga3dContextDefineOgl(pThisCC, cid, 0/fFlags/);
3988	}
3989
3990	/**
3991	* Destroys a 3d context.
3992	*
3993	* @returns VBox status code.
3994	* @param pThisCC The VGA/VMSVGA state for ring-3.
3995	* @param pContext The context to destroy.
3996	* @param cid Context id
3997	*/
3998	static int vmsvga3dContextDestroyOgl(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3999	{
4000	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4001	AssertReturn(pState, VERR_NO_MEMORY);
4002	AssertReturn(pContext, VERR_INVALID_PARAMETER);
4003	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
4004	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
4005
4006	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4007
4008	if (pContext->id == VMSVGA3D_SHARED_CTX_ID)
4009	{
4010	/* Delete resources which use the shared context. */
4011	vmsvga3dOnSharedContextDestroy(pState);
4012	}
4013
4014	/* Destroy all leftover pixel shaders. */
4015	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
4016	{
4017	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
4018	vmsvga3dShaderDestroy(pThisCC, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
4019	}
4020	if (pContext->paPixelShader)
4021	RTMemFree(pContext->paPixelShader);
4022
4023	/* Destroy all leftover vertex shaders. */
4024	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
4025	{
4026	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
4027	vmsvga3dShaderDestroy(pThisCC, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
4028	}
4029	if (pContext->paVertexShader)
4030	RTMemFree(pContext->paVertexShader);
4031
4032	if (pContext->state.paVertexShaderConst)
4033	RTMemFree(pContext->state.paVertexShaderConst);
4034	if (pContext->state.paPixelShaderConst)
4035	RTMemFree(pContext->state.paPixelShaderConst);
4036
4037	if (pContext->pShaderContext)
4038	{
4039	int rc = ShaderContextDestroy(pContext->pShaderContext);
4040	AssertRC(rc);
4041	}
4042
4043	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
4044	{
4045	/* Unbind the object from the framebuffer target. */
4046	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
4047	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4048	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
4049	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4050
4051	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
4052	{
4053	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
4054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4055	}
4056	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
4057	{
4058	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
4059	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4060	}
4061	}
4062
4063	vmsvga3dOcclusionQueryDelete(pState, pContext);
4064
4065	#ifdef RT_OS_WINDOWS
4066	wglMakeCurrent(pContext->hdc, NULL);
4067	wglDeleteContext(pContext->hglrc);
4068	ReleaseDC(pContext->hwnd, pContext->hdc);
4069
4070	/* Destroy the window we've created. */
4071	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
4072	AssertRC(rc);
4073	#elif defined(RT_OS_DARWIN)
4074	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
4075	#elif defined(RT_OS_LINUX)
4076	glXMakeCurrent(pState->display, None, NULL);
4077	glXDestroyContext(pState->display, pContext->glxContext);
4078	XDestroyWindow(pState->display, pContext->window);
4079	#endif
4080
4081	memset(pContext, 0, sizeof(*pContext));
4082	pContext->id = SVGA3D_INVALID_ID;
4083
4084	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
4085	return VINF_SUCCESS;
4086	}
4087
4088	/**
4089	* Destroy an existing 3d context
4090	*
4091	* @returns VBox status code.
4092	* @param pThisCC The VGA/VMSVGA state for ring-3.
4093	* @param cid Context id
4094	*/
4095	int vmsvga3dContextDestroy(PVGASTATECC pThisCC, uint32_t cid)
4096	{
4097	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4098	AssertReturn(pState, VERR_WRONG_ORDER);
4099
4100	/*
4101	* Resolve the context and hand it to the common worker function.
4102	*/
4103	if ( cid < pState->cContexts
4104	&& pState->papContexts[cid]->id == cid)
4105	return vmsvga3dContextDestroyOgl(pThisCC, pState->papContexts[cid], cid);
4106
4107	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
4108	return VINF_SUCCESS;
4109	}
4110
4111	/**
4112	* Worker for vmsvga3dChangeMode that resizes a context.
4113	*
4114	* @param pState The VMSVGA3d state.
4115	* @param pContext The context.
4116	*/
4117	static void vmsvga3dChangeModeOneContext(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
4118	{
4119	RT_NOREF(pState, pContext);
4120	/* Do nothing. The window is not used for presenting. */
4121	}
4122
4123	/* Handle resize */
4124	int vmsvga3dChangeMode(PVGASTATECC pThisCC)
4125	{
4126	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4127	AssertReturn(pState, VERR_NO_MEMORY);
4128
4129	/* Resize the shared context too. */
4130	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
4131	vmsvga3dChangeModeOneContext(pState, &pState->SharedCtx);
4132
4133	/* Resize all active contexts. */
4134	for (uint32_t i = 0; i < pState->cContexts; i++)
4135	{
4136	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
4137	if (pContext->id != SVGA3D_INVALID_ID)
4138	vmsvga3dChangeModeOneContext(pState, pContext);
4139	}
4140
4141	return VINF_SUCCESS;
4142	}
4143
4144
4145	int vmsvga3dSetTransform(PVGASTATECC pThisCC, uint32_t cid, SVGA3dTransformType type, float matrix[16])
4146	{
4147	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4148	AssertReturn(pState, VERR_NO_MEMORY);
4149	bool fModelViewChanged = false;
4150
4151	Log(("vmsvga3dSetTransform cid=%u %s\n", cid, vmsvgaTransformToString(type)));
4152
4153	ASSERT_GUEST_RETURN((unsigned)type < SVGA3D_TRANSFORM_MAX, VERR_INVALID_PARAMETER);
4154
4155	PVMSVGA3DCONTEXT pContext;
4156	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4157	AssertRCReturn(rc, rc);
4158
4159	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4160
4161	/* Save this matrix for vm state save/restore. */
4162	pContext->state.aTransformState[type].fValid = true;
4163	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
4164	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
4165
4166	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)));
4167	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)));
4168	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)));
4169	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)));
4170
4171	switch (type)
4172	{
4173	case SVGA3D_TRANSFORM_VIEW:
4174	/* View * World = Model View */
4175	glMatrixMode(GL_MODELVIEW);
4176	glLoadMatrixf(matrix);
4177	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
4178	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
4179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4180	fModelViewChanged = true;
4181	break;
4182
4183	case SVGA3D_TRANSFORM_PROJECTION:
4184	{
4185	rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
4186	AssertRCReturn(rc, rc);
4187	break;
4188	}
4189
4190	case SVGA3D_TRANSFORM_TEXTURE0:
4191	glMatrixMode(GL_TEXTURE);
4192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4193	glLoadMatrixf(matrix);
4194	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4195	break;
4196
4197	case SVGA3D_TRANSFORM_TEXTURE1:
4198	case SVGA3D_TRANSFORM_TEXTURE2:
4199	case SVGA3D_TRANSFORM_TEXTURE3:
4200	case SVGA3D_TRANSFORM_TEXTURE4:
4201	case SVGA3D_TRANSFORM_TEXTURE5:
4202	case SVGA3D_TRANSFORM_TEXTURE6:
4203	case SVGA3D_TRANSFORM_TEXTURE7:
4204	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
4205	return VERR_INVALID_PARAMETER;
4206
4207	case SVGA3D_TRANSFORM_WORLD:
4208	/* View * World = Model View */
4209	glMatrixMode(GL_MODELVIEW);
4210	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
4211	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
4212	else
4213	glLoadIdentity();
4214	glMultMatrixf(matrix);
4215	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4216	fModelViewChanged = true;
4217	break;
4218
4219	case SVGA3D_TRANSFORM_WORLD1:
4220	case SVGA3D_TRANSFORM_WORLD2:
4221	case SVGA3D_TRANSFORM_WORLD3:
4222	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
4223	return VERR_INVALID_PARAMETER;
4224
4225	default:
4226	Log(("vmsvga3dSetTransform: unknown type!!\n"));
4227	return VERR_INVALID_PARAMETER;
4228	}
4229
4230	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
4231	if (fModelViewChanged)
4232	{
4233	/* Reprogram the clip planes. */
4234	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
4235	{
4236	if (pContext->state.aClipPlane[j].fValid == true)
4237	vmsvga3dSetClipPlane(pThisCC, cid, j, pContext->state.aClipPlane[j].plane);
4238	}
4239
4240	/* Reprogram the light data. */
4241	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
4242	{
4243	if (pContext->state.aLightData[j].fValidData == true)
4244	vmsvga3dSetLightData(pThisCC, cid, j, &pContext->state.aLightData[j].data);
4245	}
4246	}
4247
4248	return VINF_SUCCESS;
4249	}
4250
4251	int vmsvga3dSetZRange(PVGASTATECC pThisCC, uint32_t cid, SVGA3dZRange zRange)
4252	{
4253	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4254	AssertReturn(pState, VERR_NO_MEMORY);
4255
4256	Log(("vmsvga3dSetZRange cid=%u min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
4257
4258	PVMSVGA3DCONTEXT pContext;
4259	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4260	AssertRCReturn(rc, rc);
4261
4262	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4263
4264	pContext->state.zRange = zRange;
4265	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
4266
4267	if (zRange.min < -1.0)
4268	zRange.min = -1.0;
4269	if (zRange.max > 1.0)
4270	zRange.max = 1.0;
4271
4272	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
4273	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4274	return VINF_SUCCESS;
4275	}
4276
4277	/**
4278	* Convert SVGA blend op value to its OpenGL equivalent
4279	*/
4280	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
4281	{
4282	switch (blendOp)
4283	{
4284	case SVGA3D_BLENDOP_ZERO:
4285	return GL_ZERO;
4286	case SVGA3D_BLENDOP_ONE:
4287	return GL_ONE;
4288	case SVGA3D_BLENDOP_SRCCOLOR:
4289	return GL_SRC_COLOR;
4290	case SVGA3D_BLENDOP_INVSRCCOLOR:
4291	return GL_ONE_MINUS_SRC_COLOR;
4292	case SVGA3D_BLENDOP_SRCALPHA:
4293	return GL_SRC_ALPHA;
4294	case SVGA3D_BLENDOP_INVSRCALPHA:
4295	return GL_ONE_MINUS_SRC_ALPHA;
4296	case SVGA3D_BLENDOP_DESTALPHA:
4297	return GL_DST_ALPHA;
4298	case SVGA3D_BLENDOP_INVDESTALPHA:
4299	return GL_ONE_MINUS_DST_ALPHA;
4300	case SVGA3D_BLENDOP_DESTCOLOR:
4301	return GL_DST_COLOR;
4302	case SVGA3D_BLENDOP_INVDESTCOLOR:
4303	return GL_ONE_MINUS_DST_COLOR;
4304	case SVGA3D_BLENDOP_SRCALPHASAT:
4305	return GL_SRC_ALPHA_SATURATE;
4306	case SVGA3D_BLENDOP_BLENDFACTOR:
4307	return GL_CONSTANT_COLOR;
4308	case SVGA3D_BLENDOP_INVBLENDFACTOR:
4309	return GL_ONE_MINUS_CONSTANT_COLOR;
4310	default:
4311	AssertFailed();
4312	return GL_ONE;
4313	}
4314	}
4315
4316	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
4317	{
4318	switch (blendEq)
4319	{
4320	case SVGA3D_BLENDEQ_ADD:
4321	return GL_FUNC_ADD;
4322	case SVGA3D_BLENDEQ_SUBTRACT:
4323	return GL_FUNC_SUBTRACT;
4324	case SVGA3D_BLENDEQ_REVSUBTRACT:
4325	return GL_FUNC_REVERSE_SUBTRACT;
4326	case SVGA3D_BLENDEQ_MINIMUM:
4327	return GL_MIN;
4328	case SVGA3D_BLENDEQ_MAXIMUM:
4329	return GL_MAX;
4330	default:
4331	/* SVGA3D_BLENDEQ_INVALID means that the render state has not been set, therefore use default. */
4332	AssertMsg(blendEq == SVGA3D_BLENDEQ_INVALID, ("blendEq=%d (%#x)\n", blendEq, blendEq));
4333	return GL_FUNC_ADD;
4334	}
4335	}
4336
4337	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
4338	{
4339	switch (cmpFunc)
4340	{
4341	case SVGA3D_CMP_NEVER:
4342	return GL_NEVER;
4343	case SVGA3D_CMP_LESS:
4344	return GL_LESS;
4345	case SVGA3D_CMP_EQUAL:
4346	return GL_EQUAL;
4347	case SVGA3D_CMP_LESSEQUAL:
4348	return GL_LEQUAL;
4349	case SVGA3D_CMP_GREATER:
4350	return GL_GREATER;
4351	case SVGA3D_CMP_NOTEQUAL:
4352	return GL_NOTEQUAL;
4353	case SVGA3D_CMP_GREATEREQUAL:
4354	return GL_GEQUAL;
4355	case SVGA3D_CMP_ALWAYS:
4356	return GL_ALWAYS;
4357	default:
4358	Assert(cmpFunc == SVGA3D_CMP_INVALID);
4359	return GL_LESS;
4360	}
4361	}
4362
4363	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
4364	{
4365	switch (stencilOp)
4366	{
4367	case SVGA3D_STENCILOP_KEEP:
4368	return GL_KEEP;
4369	case SVGA3D_STENCILOP_ZERO:
4370	return GL_ZERO;
4371	case SVGA3D_STENCILOP_REPLACE:
4372	return GL_REPLACE;
4373	case SVGA3D_STENCILOP_INCRSAT:
4374	return GL_INCR_WRAP;
4375	case SVGA3D_STENCILOP_DECRSAT:
4376	return GL_DECR_WRAP;
4377	case SVGA3D_STENCILOP_INVERT:
4378	return GL_INVERT;
4379	case SVGA3D_STENCILOP_INCR:
4380	return GL_INCR;
4381	case SVGA3D_STENCILOP_DECR:
4382	return GL_DECR;
4383	default:
4384	Assert(stencilOp == SVGA3D_STENCILOP_INVALID);
4385	return GL_KEEP;
4386	}
4387	}
4388
4389	int vmsvga3dSetRenderState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
4390	{
4391	uint32_t val = UINT32_MAX; /* Shut up MSC. */
4392	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
4393	AssertReturn(pState, VERR_NO_MEMORY);
4394
4395	Log(("vmsvga3dSetRenderState cid=%u cRenderStates=%d\n", cid, cRenderStates));
4396
4397	PVMSVGA3DCONTEXT pContext;
4398	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
4399	AssertRCReturn(rc, rc);
4400
4401	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4402
4403	for (unsigned i = 0; i < cRenderStates; i++)
4404	{
4405	GLenum enableCap = ~(GLenum)0;
4406	Log(("vmsvga3dSetRenderState: cid=%u state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
4407	/* Save the render state for vm state saving. */
4408	ASSERT_GUEST_RETURN((unsigned)pRenderState[i].state < SVGA3D_RS_MAX, VERR_INVALID_PARAMETER);
4409	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
4410
4411	switch (pRenderState[i].state)
4412	{
4413	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
4414	enableCap = GL_DEPTH_TEST;
4415	val = pRenderState[i].uintValue;
4416	break;
4417
4418	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
4419	glDepthMask(!!pRenderState[i].uintValue);
4420	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4421	break;
4422
4423	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
4424	enableCap = GL_ALPHA_TEST;
4425	val = pRenderState[i].uintValue;
4426	break;
4427
4428	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
4429	enableCap = GL_DITHER;
4430	val = pRenderState[i].uintValue;
4431	break;
4432
4433	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
4434	enableCap = GL_FOG;
4435	val = pRenderState[i].uintValue;
4436	break;
4437
4438	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
4439	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4440	break;
4441
4442	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
4443	enableCap = GL_LIGHTING;
4444	val = pRenderState[i].uintValue;
4445	break;
4446
4447	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
4448	/* not applicable */
4449	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4450	break;
4451
4452	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
4453	enableCap = GL_POINT_SPRITE_ARB;
4454	val = pRenderState[i].uintValue;
4455	break;
4456
4457	case SVGA3D_RS_POINTSIZE: /* float */
4458	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4459	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4460	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4461	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4462	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4463
4464	glPointSize(pRenderState[i].floatValue);
4465	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4466	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4467	break;
4468
4469	case SVGA3D_RS_POINTSIZEMIN: /* float */
4470	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4471	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4472	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4473	break;
4474
4475	case SVGA3D_RS_POINTSIZEMAX: /* float */
4476	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4478	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4479	break;
4480
4481	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4482	case SVGA3D_RS_POINTSCALE_A: /* float */
4483	case SVGA3D_RS_POINTSCALE_B: /* float */
4484	case SVGA3D_RS_POINTSCALE_C: /* float */
4485	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4486	break;
4487
4488	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4489	{
4490	GLfloat color[4]; /* red, green, blue, alpha */
4491
4492	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4493
4494	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4495	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4496	break;
4497	}
4498
4499	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4500	{
4501	for (uint32_t j = 0; j < SVGA3D_NUM_CLIPPLANES; j++)
4502	{
4503	if (pRenderState[i].uintValue & RT_BIT(j))
4504	glEnable(GL_CLIP_PLANE0 + j);
4505	else
4506	glDisable(GL_CLIP_PLANE0 + j);
4507	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4508	}
4509	break;
4510	}
4511
4512	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4513	{
4514	GLfloat color[4]; /* red, green, blue, alpha */
4515
4516	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4517
4518	glFogfv(GL_FOG_COLOR, color);
4519	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4520	break;
4521	}
4522
4523	case SVGA3D_RS_FOGSTART: /* float */
4524	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4525	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4526	break;
4527
4528	case SVGA3D_RS_FOGEND: /* float */
4529	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4530	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4531	break;
4532
4533	case SVGA3D_RS_FOGDENSITY: /* float */
4534	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4535	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4536	break;
4537
4538	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4539	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4541	break;
4542
4543	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4544	{
4545	SVGA3dFogMode mode;
4546	mode.uintValue = pRenderState[i].uintValue;
4547
4548	enableCap = GL_FOG_MODE;
4549	switch (mode.function)
4550	{
4551	case SVGA3D_FOGFUNC_EXP:
4552	val = GL_EXP;
4553	break;
4554	case SVGA3D_FOGFUNC_EXP2:
4555	val = GL_EXP2;
4556	break;
4557	case SVGA3D_FOGFUNC_LINEAR:
4558	val = GL_LINEAR;
4559	break;
4560	default:
4561	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.function), VERR_INTERNAL_ERROR);
4562	break;
4563	}
4564
4565	/** @todo how to switch between vertex and pixel fog modes??? */
4566	Assert(mode.type == SVGA3D_FOGTYPE_PIXEL);
4567	#if 0
4568	/* The fog type determines the render state. */
4569	switch (mode.type)
4570	{
4571	case SVGA3D_FOGTYPE_VERTEX:
4572	renderState = D3DRS_FOGVERTEXMODE;
4573	break;
4574	case SVGA3D_FOGTYPE_PIXEL:
4575	renderState = D3DRS_FOGTABLEMODE;
4576	break;
4577	default:
4578	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.type), VERR_INTERNAL_ERROR);
4579	break;
4580	}
4581	#endif
4582
4583	/* Set the fog base to depth or range. */
4584	switch (mode.base)
4585	{
4586	case SVGA3D_FOGBASE_DEPTHBASED:
4587	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4588	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4589	break;
4590	case SVGA3D_FOGBASE_RANGEBASED:
4591	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4592	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4593	break;
4594	default:
4595	/* ignore */
4596	AssertMsgFailed(("Unexpected fog base %d\n", mode.base));
4597	break;
4598	}
4599	break;
4600	}
4601
4602	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4603	{
4604	SVGA3dFillMode mode;
4605
4606	mode.uintValue = pRenderState[i].uintValue;
4607
4608	switch (mode.mode)
4609	{
4610	case SVGA3D_FILLMODE_POINT:
4611	val = GL_POINT;
4612	break;
4613	case SVGA3D_FILLMODE_LINE:
4614	val = GL_LINE;
4615	break;
4616	case SVGA3D_FILLMODE_FILL:
4617	val = GL_FILL;
4618	break;
4619	default:
4620	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.mode), VERR_INTERNAL_ERROR);
4621	break;
4622	}
4623	/* Only front and back faces. Also recent Mesa guest drivers initialize the 'face' to zero. */
4624	ASSERT_GUEST(mode.face == SVGA3D_FACE_FRONT_BACK \|\| mode.face == SVGA3D_FACE_INVALID);
4625	glPolygonMode(GL_FRONT_AND_BACK, val);
4626	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4627	break;
4628	}
4629
4630	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4631	switch (pRenderState[i].uintValue)
4632	{
4633	case SVGA3D_SHADEMODE_FLAT:
4634	val = GL_FLAT;
4635	break;
4636
4637	case SVGA3D_SHADEMODE_SMOOTH:
4638	val = GL_SMOOTH;
4639	break;
4640
4641	default:
4642	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4643	break;
4644	}
4645
4646	glShadeModel(val);
4647	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4648	break;
4649
4650	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4651	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4652	/** @todo */
4653	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4654	/*
4655	renderState = D3DRS_LINEPATTERN;
4656	val = pRenderState[i].uintValue;
4657	*/
4658	break;
4659
4660	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4661	enableCap = GL_LINE_SMOOTH;
4662	val = pRenderState[i].uintValue;
4663	break;
4664
4665	case SVGA3D_RS_LINEWIDTH: /* float */
4666	glLineWidth(pRenderState[i].floatValue);
4667	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4668	break;
4669
4670	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4671	{
4672	/* Refresh the blending state based on the new enable setting.
4673	* This will take existing states and set them using either glBlend* or glBlend*Separate.
4674	*/
4675	static SVGA3dRenderStateName const saRefreshState[] =
4676	{
4677	SVGA3D_RS_SRCBLEND,
4678	SVGA3D_RS_BLENDEQUATION
4679	};
4680	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4681	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4682	{
4683	renderstate[j].state = saRefreshState[j];
4684	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4685	}
4686
4687	rc = vmsvga3dSetRenderState(pThisCC, cid, 2, renderstate);
4688	AssertRCReturn(rc, rc);
4689
4690	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4691	continue; /* Ignore if blend is enabled */
4692	/* Apply SVGA3D_RS_SEPARATEALPHABLENDENABLE as SVGA3D_RS_BLENDENABLE */
4693	} RT_FALL_THRU();
4694
4695	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4696	enableCap = GL_BLEND;
4697	val = pRenderState[i].uintValue;
4698	break;
4699
4700	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4701	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4702	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4703	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4704	{
4705	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4706	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4707
4708	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4709	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4710	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4711	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4712	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4713	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4714	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4715	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4716
4717	switch (pRenderState[i].state)
4718	{
4719	case SVGA3D_RS_SRCBLEND:
4720	srcRGB = blendop;
4721	break;
4722	case SVGA3D_RS_DSTBLEND:
4723	dstRGB = blendop;
4724	break;
4725	case SVGA3D_RS_SRCBLENDALPHA:
4726	srcAlpha = blendop;
4727	break;
4728	case SVGA3D_RS_DSTBLENDALPHA:
4729	dstAlpha = blendop;
4730	break;
4731	default:
4732	/* not possible; shut up gcc */
4733	AssertFailed();
4734	break;
4735	}
4736
4737	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4738	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4739	else
4740	glBlendFunc(srcRGB, dstRGB);
4741	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4742	break;
4743	}
4744
4745	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4746	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4747	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4748	{
4749	GLenum const modeRGB = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue);
4750	GLenum const modeAlpha = vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue);
4751	pState->ext.glBlendEquationSeparate(modeRGB, modeAlpha);
4752	}
4753	else
4754	{
4755	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4756	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4757	#else
4758	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4759	#endif
4760	}
4761	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4762	break;
4763
4764	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4765	{
4766	GLfloat red, green, blue, alpha;
4767
4768	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4769
4770	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4771	glBlendColor(red, green, blue, alpha);
4772	#else
4773	pState->ext.glBlendColor(red, green, blue, alpha);
4774	#endif
4775	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4776	break;
4777	}
4778
4779	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4780	{
4781	GLenum mode = GL_BACK; /* default for OpenGL */
4782
4783	switch (pRenderState[i].uintValue)
4784	{
4785	case SVGA3D_FACE_NONE:
4786	break;
4787	case SVGA3D_FACE_FRONT:
4788	mode = GL_FRONT;
4789	break;
4790	case SVGA3D_FACE_BACK:
4791	mode = GL_BACK;
4792	break;
4793	case SVGA3D_FACE_FRONT_BACK:
4794	mode = GL_FRONT_AND_BACK;
4795	break;
4796	default:
4797	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4798	break;
4799	}
4800	enableCap = GL_CULL_FACE;
4801	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4802	{
4803	glCullFace(mode);
4804	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4805	val = 1;
4806	}
4807	else
4808	val = 0;
4809	break;
4810	}
4811
4812	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4813	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4814	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4815	break;
4816
4817	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4818	{
4819	GLclampf ref;
4820
4821	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4822	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4823	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4824	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4825	break;
4826	}
4827
4828	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4829	{
4830	GLint func;
4831
4832	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4833	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4834	glAlphaFunc(func, pRenderState[i].floatValue);
4835	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4836	break;
4837	}
4838
4839	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4840	{
4841	/* Refresh the stencil state based on the new enable setting.
4842	* This will take existing states and set them using either glStencil or glStencil*Separate.
4843	*/
4844	static SVGA3dRenderStateName const saRefreshState[] =
4845	{
4846	SVGA3D_RS_STENCILFUNC,
4847	SVGA3D_RS_STENCILFAIL,
4848	SVGA3D_RS_CCWSTENCILFUNC,
4849	SVGA3D_RS_CCWSTENCILFAIL
4850	};
4851	SVGA3dRenderState renderstate[RT_ELEMENTS(saRefreshState)];
4852	for (uint32_t j = 0; j < RT_ELEMENTS(saRefreshState); ++j)
4853	{
4854	renderstate[j].state = saRefreshState[j];
4855	renderstate[j].uintValue = pContext->state.aRenderState[saRefreshState[j]].uintValue;
4856	}
4857
4858	rc = vmsvga3dSetRenderState(pThisCC, cid, RT_ELEMENTS(renderstate), renderstate);
4859	AssertRCReturn(rc, rc);
4860
4861	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE].uintValue != 0)
4862	continue; /* Ignore if stencil is enabled */
4863	/* Apply SVGA3D_RS_STENCILENABLE2SIDED as SVGA3D_RS_STENCILENABLE. */
4864	} RT_FALL_THRU();
4865
4866	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4867	enableCap = GL_STENCIL_TEST;
4868	val = pRenderState[i].uintValue;
4869	break;
4870
4871	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4872	case SVGA3D_RS_STENCILREF: /* uint32_t */
4873	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4874	{
4875	GLint func, ref;
4876	GLuint mask;
4877
4878	/* Query current values to have all parameters for glStencilFunc[Separate]. */
4879	glGetIntegerv(GL_STENCIL_FUNC, &func);
4880	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4881	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4883	glGetIntegerv(GL_STENCIL_REF, &ref);
4884	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4885
4886	/* Update the changed value. */
4887	switch (pRenderState[i].state)
4888	{
4889	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4890	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4891	break;
4892
4893	case SVGA3D_RS_STENCILREF: /* uint32_t */
4894	ref = pRenderState[i].uintValue;
4895	break;
4896
4897	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4898	mask = pRenderState[i].uintValue;
4899	break;
4900
4901	default:
4902	/* not possible; shut up gcc */
4903	AssertFailed();
4904	break;
4905	}
4906
4907	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4908	{
4909	pState->ext.glStencilFuncSeparate(GL_FRONT, func, ref, mask);
4910	}
4911	else
4912	{
4913	glStencilFunc(func, ref, mask);
4914	}
4915	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4916	break;
4917	}
4918
4919	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4920	glStencilMask(pRenderState[i].uintValue);
4921	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4922	break;
4923
4924	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4925	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4926	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4927	{
4928	GLint sfail, dpfail, dppass;
4929	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4930
4931	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4932	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4933	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4934	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4935	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4936	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4937
4938	switch (pRenderState[i].state)
4939	{
4940	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4941	sfail = stencilop;
4942	break;
4943	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4944	dpfail = stencilop;
4945	break;
4946	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4947	dppass = stencilop;
4948	break;
4949	default:
4950	/* not possible; shut up gcc */
4951	AssertFailed();
4952	break;
4953	}
4954	if (pContext->state.aRenderState[SVGA3D_RS_STENCILENABLE2SIDED].uintValue != 0)
4955	{
4956	pState->ext.glStencilOpSeparate(GL_FRONT, sfail, dpfail, dppass);
4957	}
4958	else
4959	{
4960	glStencilOp(sfail, dpfail, dppass);
4961	}
4962	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4963	break;
4964	}
4965
4966	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4967	{
4968	GLint ref;
4969	GLuint mask;
4970	GLint const func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4971
4972	/* GL_STENCIL_VALUE_MASK and GL_STENCIL_REF are the same for both GL_FRONT and GL_BACK. */
4973	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4974	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4975	glGetIntegerv(GL_STENCIL_REF, &ref);
4976	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4977
4978	pState->ext.glStencilFuncSeparate(GL_BACK, func, ref, mask);
4979	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4980	break;
4981	}
4982
4983	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4984	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4985	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4986	{
4987	GLint sfail, dpfail, dppass;
4988	GLenum const stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4989
4990	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4991	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4992	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4993	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4994	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4996
4997	switch (pRenderState[i].state)
4998	{
4999	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
5000	sfail = stencilop;
5001	break;
5002	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
5003	dpfail = stencilop;
5004	break;
5005	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
5006	dppass = stencilop;
5007	break;
5008	default:
5009	/* not possible; shut up gcc */
5010	AssertFailed();
5011	break;
5012	}
5013	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
5014	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5015	break;
5016	}
5017
5018	case SVGA3D_RS_ZBIAS: /* float */
5019	/** @todo unknown meaning; depth bias is not identical
5020	renderState = D3DRS_DEPTHBIAS;
5021	val = pRenderState[i].uintValue;
5022	*/
5023	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
5024	break;
5025
5026	case SVGA3D_RS_DEPTHBIAS: /* float */
5027	{
5028	GLfloat factor;
5029
5030	/** @todo not sure if the d3d & ogl definitions are identical. */
5031
5032	/* Do not change the factor part. */
5033	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
5034	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5035
5036	glPolygonOffset(factor, pRenderState[i].floatValue);
5037	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5038	break;
5039	}
5040
5041	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
5042	{
5043	GLfloat units;
5044
5045	/** @todo not sure if the d3d & ogl definitions are identical. */
5046
5047	/* Do not change the factor part. */
5048	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
5049	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5050
5051	glPolygonOffset(pRenderState[i].floatValue, units);
5052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5053	break;
5054	}
5055
5056	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
5057	{
5058	GLboolean red, green, blue, alpha;
5059	SVGA3dColorMask mask;
5060
5061	mask.uintValue = pRenderState[i].uintValue;
5062
5063	red = mask.red;
5064	green = mask.green;
5065	blue = mask.blue;
5066	alpha = mask.alpha;
5067
5068	glColorMask(red, green, blue, alpha);
5069	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5070	break;
5071	}
5072
5073	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5074	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5075	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
5076	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
5077	break;
5078
5079	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
5080	enableCap = GL_SCISSOR_TEST;
5081	val = pRenderState[i].uintValue;
5082	break;
5083
5084	#if 0
5085	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5086	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
5087	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
5088	val = pRenderState[i].uintValue;
5089	break;
5090
5091	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
5092	renderState = D3DRS_SPECULARMATERIALSOURCE;
5093	val = pRenderState[i].uintValue;
5094	break;
5095
5096	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
5097	renderState = D3DRS_AMBIENTMATERIALSOURCE;
5098	val = pRenderState[i].uintValue;
5099	break;
5100
5101	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
5102	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
5103	val = pRenderState[i].uintValue;
5104	break;
5105	#endif
5106
5107	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
5108	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
5109	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
5110	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
5111	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
5112	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
5113	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
5114	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
5115	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
5116	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
5117	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
5118	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
5119	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
5120	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
5121	break;
5122
5123	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
5124	case SVGA3D_RS_TWEENFACTOR: /* float */
5125	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
5126	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
5127	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
5128	break;
5129
5130	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
5131	enableCap = GL_MULTISAMPLE;
5132	val = pRenderState[i].uintValue;
5133	break;
5134
5135	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
5136	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
5137	break;
5138
5139	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
5140	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
5141	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
5142	/*
5143	renderState = D3DRS_COORDINATETYPE;
5144	val = pRenderState[i].uintValue;
5145	*/
5146	break;
5147
5148	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
5149	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
5150	/* Invert the selected mode because of y-inversion (?) */
5151	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
5152	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5153	break;
5154
5155	case SVGA3D_RS_OUTPUTGAMMA: /* float */
5156	//AssertFailed();
5157	/*
5158	D3DRS_SRGBWRITEENABLE ??
5159	renderState = D3DRS_OUTPUTGAMMA;
5160	val = pRenderState[i].uintValue;
5161	*/
5162	break;
5163
5164	#if 0
5165
5166	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
5167	//AssertFailed();
5168	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
5169	val = pRenderState[i].uintValue;
5170	break;
5171
5172	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
5173	renderState = D3DRS_TEXTUREFACTOR;
5174	val = pRenderState[i].uintValue;
5175	break;
5176
5177	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
5178	renderState = D3DRS_LOCALVIEWER;
5179	val = pRenderState[i].uintValue;
5180	break;
5181
5182	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
5183	AssertFailed();
5184	/*
5185	renderState = D3DRS_ZVISIBLE;
5186	val = pRenderState[i].uintValue;
5187	*/
5188	break;
5189
5190	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
5191	renderState = D3DRS_CLIPPING;
5192	val = pRenderState[i].uintValue;
5193	break;
5194
5195	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
5196	glTexParameter GL_TEXTURE_WRAP_S
5197	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
5198	renderState = D3DRS_WRAP0;
5199	val = pRenderState[i].uintValue;
5200	break;
5201
5202	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
5203	glTexParameter GL_TEXTURE_WRAP_T
5204	renderState = D3DRS_WRAP1;
5205	val = pRenderState[i].uintValue;
5206	break;
5207
5208	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
5209	glTexParameter GL_TEXTURE_WRAP_R
5210	renderState = D3DRS_WRAP2;
5211	val = pRenderState[i].uintValue;
5212	break;
5213
5214
5215	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
5216	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
5217	val = pRenderState[i].uintValue;
5218	break;
5219
5220
5221	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
5222	renderState = D3DRS_BLENDOPALPHA;
5223	val = pRenderState[i].uintValue;
5224	break;
5225
5226	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
5227	AssertFailed();
5228	/*
5229	renderState = D3DRS_TRANSPARENCYANTIALIAS;
5230	val = pRenderState[i].uintValue;
5231	*/
5232	break;
5233
5234	#endif
5235	default:
5236	AssertFailed();
5237	break;
5238	}
5239
5240	if (enableCap != ~(GLenum)0)
5241	{
5242	if (val)
5243	glEnable(enableCap);
5244	else
5245	glDisable(enableCap);
5246	}
5247	}
5248
5249	return VINF_SUCCESS;
5250	}
5251
5252	int vmsvga3dSetRenderTarget(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
5253	{
5254	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5255
5256	AssertReturn(pState, VERR_NO_MEMORY);
5257	AssertReturn((unsigned)type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
5258
5259	LogFunc(("cid=%u type=%x sid=%u\n", cid, type, target.sid));
5260
5261	PVMSVGA3DCONTEXT pContext;
5262	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5263	AssertRCReturn(rc, rc);
5264
5265	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5266
5267	/* Save for vm state save/restore. */
5268	pContext->state.aRenderTargets[type] = target.sid;
5269
5270	if (target.sid == SVGA3D_INVALID_ID)
5271	{
5272	/* Disable render target. */
5273	switch (type)
5274	{
5275	case SVGA3D_RT_DEPTH:
5276	case SVGA3D_RT_STENCIL:
5277	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
5278	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5279	break;
5280
5281	case SVGA3D_RT_COLOR0:
5282	case SVGA3D_RT_COLOR1:
5283	case SVGA3D_RT_COLOR2:
5284	case SVGA3D_RT_COLOR3:
5285	case SVGA3D_RT_COLOR4:
5286	case SVGA3D_RT_COLOR5:
5287	case SVGA3D_RT_COLOR6:
5288	case SVGA3D_RT_COLOR7:
5289	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
5290	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5291	break;
5292
5293	default:
5294	AssertFailedReturn(VERR_INVALID_PARAMETER);
5295	}
5296	return VINF_SUCCESS;
5297	}
5298
5299	PVMSVGA3DSURFACE pRenderTarget;
5300	rc = vmsvga3dSurfaceFromSid(pState, target.sid, &pRenderTarget);
5301	AssertRCReturn(rc, rc);
5302
5303	switch (type)
5304	{
5305	case SVGA3D_RT_DEPTH:
5306	case SVGA3D_RT_STENCIL:
5307	#if 1
5308	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5309	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5310	{
5311	LogFunc(("create depth texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n",
5312	target.sid, pRenderTarget->surfaceFlags, pRenderTarget->format));
5313	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
5314	AssertRCReturn(rc, rc);
5315	}
5316
5317	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5318	Assert(!pRenderTarget->fDirty);
5319
5320	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5321
5322	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER,
5323	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5324	GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
5325	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5326	#else
5327	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
5328	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5329	{
5330	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
5331	pContext = &pState->SharedCtx;
5332	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5333
5334	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
5335	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5336	pSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_RENDERBUFFER;
5337
5338	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5339	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5340
5341	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
5342	pRenderTarget->internalFormatGL,
5343	pRenderTarget->paMipmapLevels[0].mipmapSize.width,
5344	pRenderTarget->paMipmapLevels[0].mipmapSize.height);
5345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5346
5347	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
5348	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5349
5350	pContext = pState->papContexts[cid];
5351	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5352	pRenderTarget->idWeakContextAssociation = cid;
5353	}
5354
5355	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5357	Assert(!pRenderTarget->fDirty);
5358	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5359
5360	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
5361
5362	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
5363	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
5364	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
5365	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5366	#endif
5367	break;
5368
5369	case SVGA3D_RT_COLOR0:
5370	case SVGA3D_RT_COLOR1:
5371	case SVGA3D_RT_COLOR2:
5372	case SVGA3D_RT_COLOR3:
5373	case SVGA3D_RT_COLOR4:
5374	case SVGA3D_RT_COLOR5:
5375	case SVGA3D_RT_COLOR6:
5376	case SVGA3D_RT_COLOR7:
5377	{
5378	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
5379	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
5380	{
5381	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));
5382	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
5383	AssertRCReturn(rc, rc);
5384	}
5385
5386	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
5387	Assert(!pRenderTarget->fDirty);
5388
5389	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
5390
5391	GLenum textarget;
5392	if (pRenderTarget->surfaceFlags & SVGA3D_SURFACE_CUBEMAP)
5393	textarget = vmsvga3dCubemapFaceFromIndex(target.face);
5394	else
5395	textarget = GL_TEXTURE_2D;
5396	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0,
5397	textarget, pRenderTarget->oglId.texture, target.mipmap);
5398	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5399
5400	#ifdef DEBUG
5401	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
5402	if (status != GL_FRAMEBUFFER_COMPLETE)
5403	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
5404	#endif
5405	/** @todo use glDrawBuffers too? */
5406	break;
5407	}
5408
5409	default:
5410	AssertFailedReturn(VERR_INVALID_PARAMETER);
5411	}
5412
5413	return VINF_SUCCESS;
5414	}
5415
5416	#if 0
5417	/**
5418	* Convert SVGA texture combiner value to its D3D equivalent
5419	*/
5420	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
5421	{
5422	switch (value)
5423	{
5424	case SVGA3D_TC_DISABLE:
5425	return D3DTOP_DISABLE;
5426	case SVGA3D_TC_SELECTARG1:
5427	return D3DTOP_SELECTARG1;
5428	case SVGA3D_TC_SELECTARG2:
5429	return D3DTOP_SELECTARG2;
5430	case SVGA3D_TC_MODULATE:
5431	return D3DTOP_MODULATE;
5432	case SVGA3D_TC_ADD:
5433	return D3DTOP_ADD;
5434	case SVGA3D_TC_ADDSIGNED:
5435	return D3DTOP_ADDSIGNED;
5436	case SVGA3D_TC_SUBTRACT:
5437	return D3DTOP_SUBTRACT;
5438	case SVGA3D_TC_BLENDTEXTUREALPHA:
5439	return D3DTOP_BLENDTEXTUREALPHA;
5440	case SVGA3D_TC_BLENDDIFFUSEALPHA:
5441	return D3DTOP_BLENDDIFFUSEALPHA;
5442	case SVGA3D_TC_BLENDCURRENTALPHA:
5443	return D3DTOP_BLENDCURRENTALPHA;
5444	case SVGA3D_TC_BLENDFACTORALPHA:
5445	return D3DTOP_BLENDFACTORALPHA;
5446	case SVGA3D_TC_MODULATE2X:
5447	return D3DTOP_MODULATE2X;
5448	case SVGA3D_TC_MODULATE4X:
5449	return D3DTOP_MODULATE4X;
5450	case SVGA3D_TC_DSDT:
5451	AssertFailed(); /** @todo ??? */
5452	return D3DTOP_DISABLE;
5453	case SVGA3D_TC_DOTPRODUCT3:
5454	return D3DTOP_DOTPRODUCT3;
5455	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
5456	return D3DTOP_BLENDTEXTUREALPHAPM;
5457	case SVGA3D_TC_ADDSIGNED2X:
5458	return D3DTOP_ADDSIGNED2X;
5459	case SVGA3D_TC_ADDSMOOTH:
5460	return D3DTOP_ADDSMOOTH;
5461	case SVGA3D_TC_PREMODULATE:
5462	return D3DTOP_PREMODULATE;
5463	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
5464	return D3DTOP_MODULATEALPHA_ADDCOLOR;
5465	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
5466	return D3DTOP_MODULATECOLOR_ADDALPHA;
5467	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
5468	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
5469	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
5470	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
5471	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
5472	return D3DTOP_BUMPENVMAPLUMINANCE;
5473	case SVGA3D_TC_MULTIPLYADD:
5474	return D3DTOP_MULTIPLYADD;
5475	case SVGA3D_TC_LERP:
5476	return D3DTOP_LERP;
5477	default:
5478	AssertFailed();
5479	return D3DTOP_DISABLE;
5480	}
5481	}
5482
5483	/**
5484	* Convert SVGA texture arg data value to its D3D equivalent
5485	*/
5486	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
5487	{
5488	switch (value)
5489	{
5490	case SVGA3D_TA_CONSTANT:
5491	return D3DTA_CONSTANT;
5492	case SVGA3D_TA_PREVIOUS:
5493	return D3DTA_CURRENT; /* current = previous */
5494	case SVGA3D_TA_DIFFUSE:
5495	return D3DTA_DIFFUSE;
5496	case SVGA3D_TA_TEXTURE:
5497	return D3DTA_TEXTURE;
5498	case SVGA3D_TA_SPECULAR:
5499	return D3DTA_SPECULAR;
5500	default:
5501	AssertFailed();
5502	return 0;
5503	}
5504	}
5505
5506	/**
5507	* Convert SVGA texture transform flag value to its D3D equivalent
5508	*/
5509	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
5510	{
5511	switch (value)
5512	{
5513	case SVGA3D_TEX_TRANSFORM_OFF:
5514	return D3DTTFF_DISABLE;
5515	case SVGA3D_TEX_TRANSFORM_S:
5516	return D3DTTFF_COUNT1; /** @todo correct? */
5517	case SVGA3D_TEX_TRANSFORM_T:
5518	return D3DTTFF_COUNT2; /** @todo correct? */
5519	case SVGA3D_TEX_TRANSFORM_R:
5520	return D3DTTFF_COUNT3; /** @todo correct? */
5521	case SVGA3D_TEX_TRANSFORM_Q:
5522	return D3DTTFF_COUNT4; /** @todo correct? */
5523	case SVGA3D_TEX_PROJECTED:
5524	return D3DTTFF_PROJECTED;
5525	default:
5526	AssertFailed();
5527	return 0;
5528	}
5529	}
5530	#endif
5531
5532	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5533	{
5534	switch (value)
5535	{
5536	case SVGA3D_TEX_ADDRESS_WRAP:
5537	return GL_REPEAT;
5538	case SVGA3D_TEX_ADDRESS_MIRROR:
5539	return GL_MIRRORED_REPEAT;
5540	case SVGA3D_TEX_ADDRESS_CLAMP:
5541	return GL_CLAMP_TO_EDGE;
5542	case SVGA3D_TEX_ADDRESS_BORDER:
5543	return GL_CLAMP_TO_BORDER;
5544	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5545	AssertFailed();
5546	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5547
5548	case SVGA3D_TEX_ADDRESS_EDGE:
5549	case SVGA3D_TEX_ADDRESS_INVALID:
5550	default:
5551	AssertFailed();
5552	return GL_REPEAT; /* default */
5553	}
5554	}
5555
5556	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5557	{
5558	switch (value)
5559	{
5560	case SVGA3D_TEX_FILTER_NONE:
5561	case SVGA3D_TEX_FILTER_LINEAR:
5562	case SVGA3D_TEX_FILTER_ANISOTROPIC: /* Anisotropic filtering is controlled by SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL */
5563	return GL_LINEAR;
5564	case SVGA3D_TEX_FILTER_NEAREST:
5565	return GL_NEAREST;
5566	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5567	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5568	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5569	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5570	default:
5571	AssertFailed();
5572	return GL_LINEAR; /* default */
5573	}
5574	}
5575
5576	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5577	{
5578	/* flip the red and blue bytes */
5579	uint8_t blue = value & 0xff;
5580	uint8_t red = (value >> 16) & 0xff;
5581	return (value & 0xff00ff00) \| red \| (blue << 16);
5582	}
5583
5584	int vmsvga3dSetTextureState(PVGASTATECC pThisCC, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5585	{
5586	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5587	GLenum currentStage = ~(GLenum)0;
5588	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5589	AssertReturn(pState, VERR_NO_MEMORY);
5590
5591	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5592
5593	PVMSVGA3DCONTEXT pContext;
5594	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5595	AssertRCReturn(rc, rc);
5596
5597	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5598
5599	/* Which texture is active for the current stage. Needed to use right OpenGL target when setting parameters. */
5600	PVMSVGA3DSURFACE pCurrentTextureSurface = NULL;
5601
5602	for (uint32_t i = 0; i < cTextureStates; ++i)
5603	{
5604	GLenum textureType = ~(GLenum)0;
5605	#if 0
5606	GLenum samplerType = ~(GLenum)0;
5607	#endif
5608
5609	LogFunc(("cid=%u stage=%d type=%s (%x) val=%x\n",
5610	cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5611
5612	/* Record the texture state for vm state saving. */
5613	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5614	&& (unsigned)pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5615	{
5616	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5617	}
5618
5619	/* Activate the right texture unit for subsequent texture state changes. */
5620	if (pTextureState[i].stage != currentStage \|\| i == 0)
5621	{
5622	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5623	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5624	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5625	{
5626	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5627	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5628	currentStage = pTextureState[i].stage;
5629	}
5630	else
5631	{
5632	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5633	continue;
5634	}
5635
5636	if (pContext->aSidActiveTextures[currentStage] != SVGA3D_INVALID_ID)
5637	{
5638	rc = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[currentStage], &pCurrentTextureSurface);
5639	AssertRCReturn(rc, rc);
5640	}
5641	else
5642	pCurrentTextureSurface = NULL; /* Make sure that no stale pointer is used. */
5643	}
5644
5645	switch (pTextureState[i].name)
5646	{
5647	case SVGA3D_TS_BUMPENVMAT00: /* float */
5648	case SVGA3D_TS_BUMPENVMAT01: /* float */
5649	case SVGA3D_TS_BUMPENVMAT10: /* float */
5650	case SVGA3D_TS_BUMPENVMAT11: /* float */
5651	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5652	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5653	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5654	break;
5655
5656	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5657	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5658	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5659	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5660	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5661	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5662	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5663	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5664	/** @todo not used by MesaGL */
5665	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5666	break;
5667	#if 0
5668
5669	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5670	textureType = D3DTSS_TEXCOORDINDEX;
5671	val = pTextureState[i].value;
5672	break;
5673
5674	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5675	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5676	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5677	break;
5678	#endif
5679
5680	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5681	{
5682	uint32_t const sid = pTextureState[i].value;
5683
5684	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u replacing sid=%u\n",
5685	currentStage, sid, pContext->aSidActiveTextures[currentStage]));
5686
5687	/* Only if texture actually changed. */ /// @todo needs testing.
5688	if (pContext->aSidActiveTextures[currentStage] != sid)
5689	{
5690	if (pCurrentTextureSurface)
5691	{
5692	/* Unselect the currently associated texture. */
5693	glBindTexture(pCurrentTextureSurface->targetGL, 0);
5694	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5695
5696	if (currentStage < 8)
5697	{
5698	/* Necessary for the fixed pipeline. */
5699	glDisable(pCurrentTextureSurface->targetGL);
5700	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5701	}
5702
5703	pCurrentTextureSurface = NULL;
5704	}
5705
5706	if (sid == SVGA3D_INVALID_ID)
5707	{
5708	Assert(pCurrentTextureSurface == NULL);
5709	}
5710	else
5711	{
5712	PVMSVGA3DSURFACE pSurface;
5713	rc = vmsvga3dSurfaceFromSid(pState, sid, &pSurface);
5714	AssertRCReturn(rc, rc);
5715
5716	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture sid=%u (%d,%d) replacing sid=%u\n",
5717	currentStage, sid, pSurface->paMipmapLevels[0].mipmapSize.width,
5718	pSurface->paMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5719
5720	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5721	{
5722	Log(("CreateTexture (%d,%d) levels=%d\n",
5723	pSurface->paMipmapLevels[0].mipmapSize.width, pSurface->paMipmapLevels[0].mipmapSize.height, pSurface->cLevels));
5724	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5725	AssertRCReturn(rc, rc);
5726	}
5727
5728	glBindTexture(pSurface->targetGL, pSurface->oglId.texture);
5729	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5730
5731	if (currentStage < 8)
5732	{
5733	/* Necessary for the fixed pipeline. */
5734	glEnable(pSurface->targetGL);
5735	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5736	}
5737
5738	/* Remember the currently active texture. */
5739	pCurrentTextureSurface = pSurface;
5740
5741	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5742	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5743	{
5744	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5745	{
5746	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5747
5748	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5749	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5750	vmsvga3dSetTextureState(pThisCC, pContext->id, 1, pTextureStateIter);
5751	}
5752	}
5753	}
5754
5755	pContext->aSidActiveTextures[currentStage] = sid;
5756	}
5757
5758	/* Finished; continue with the next one. */
5759	continue;
5760	}
5761
5762	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5763	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5764	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5765	break;
5766
5767	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5768	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5769	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5770	break;
5771
5772	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5773	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5774	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5775	break;
5776
5777	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5778	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5779	{
5780	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5781	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5782
5783	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5784	textureType = GL_TEXTURE_MIN_FILTER;
5785	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5786	{
5787	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5788	{
5789	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5790	val = GL_NEAREST_MIPMAP_LINEAR;
5791	else
5792	val = GL_NEAREST_MIPMAP_NEAREST;
5793	}
5794	else
5795	{
5796	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5797	val = GL_LINEAR_MIPMAP_LINEAR;
5798	else
5799	val = GL_LINEAR_MIPMAP_NEAREST;
5800	}
5801	}
5802	else
5803	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5804	break;
5805	}
5806
5807	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5808	textureType = GL_TEXTURE_MAG_FILTER;
5809	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5810	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5811	break;
5812
5813	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5814	{
5815	GLfloat color[4]; /* red, green, blue, alpha */
5816	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5817
5818	GLenum targetGL;
5819	if (pCurrentTextureSurface)
5820	targetGL = pCurrentTextureSurface->targetGL;
5821	else
5822	{
5823	/* No texture bound, assume 2D. */
5824	targetGL = GL_TEXTURE_2D;
5825	}
5826
5827	glTexParameterfv(targetGL, GL_TEXTURE_BORDER_COLOR, color); /* Identical; default 0.0 identical too */
5828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5829	break;
5830	}
5831
5832	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5833	{
5834	GLenum targetGL;
5835	if (pCurrentTextureSurface)
5836	targetGL = pCurrentTextureSurface->targetGL;
5837	else
5838	{
5839	/* No texture bound, assume 2D. */
5840	targetGL = GL_TEXTURE_2D;
5841	}
5842
5843	glTexParameterf(targetGL, GL_TEXTURE_LOD_BIAS, pTextureState[i].floatValue); /* Identical; default 0.0 identical too */
5844	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5845	break;
5846	}
5847
5848	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5849	textureType = GL_TEXTURE_BASE_LEVEL;
5850	val = pTextureState[i].value;
5851	break;
5852
5853	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5854	if (pState->caps.fTextureFilterAnisotropicSupported)
5855	{
5856	textureType = GL_TEXTURE_MAX_ANISOTROPY_EXT;
5857	val = RT_MIN((GLint)pTextureState[i].value, pState->caps.maxTextureAnisotropy);
5858	} /* otherwise ignore. */
5859	break;
5860
5861	#if 0
5862	case SVGA3D_TS_GAMMA: /* float */
5863	samplerType = D3DSAMP_SRGBTEXTURE;
5864	/* Boolean in D3D */
5865	if (pTextureState[i].floatValue == 1.0f)
5866	val = FALSE;
5867	else
5868	val = TRUE;
5869	break;
5870	#endif
5871	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5872	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5873	AssertFailed();
5874	break;
5875
5876	default:
5877	//AssertFailed();
5878	break;
5879	}
5880
5881	if (textureType != ~(GLenum)0)
5882	{
5883	GLenum targetGL;
5884	if (pCurrentTextureSurface)
5885	targetGL = pCurrentTextureSurface->targetGL;
5886	else
5887	{
5888	/* No texture bound, assume 2D. */
5889	targetGL = GL_TEXTURE_2D;
5890	}
5891
5892	switch (pTextureState[i].name)
5893	{
5894	case SVGA3D_TS_MINFILTER:
5895	case SVGA3D_TS_MAGFILTER:
5896	{
5897	if (pState->caps.fTextureFilterAnisotropicSupported)
5898	{
5899	uint32_t const anisotropyLevel = (SVGA3dTextureFilter)pTextureState[i].value == SVGA3D_TEX_FILTER_ANISOTROPIC
5900	? RT_MAX(1, pContext->state.aTextureStates[currentStage][SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL].value)
5901	: 1;
5902	glTexParameteri(targetGL, GL_TEXTURE_MAX_ANISOTROPY_EXT, RT_MIN((GLint)anisotropyLevel, pState->caps.maxTextureAnisotropy));
5903	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5904	}
5905	} break;
5906
5907	default: break;
5908	}
5909
5910	glTexParameteri(targetGL, textureType, val);
5911	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5912	}
5913	}
5914
5915	return VINF_SUCCESS;
5916	}
5917
5918	int vmsvga3dSetMaterial(PVGASTATECC pThisCC, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5919	{
5920	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5921	AssertReturn(pState, VERR_NO_MEMORY);
5922
5923	LogFunc(("cid=%u face %d\n", cid, face));
5924
5925	PVMSVGA3DCONTEXT pContext;
5926	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5927	AssertRCReturn(rc, rc);
5928
5929	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5930
5931	GLenum oglFace;
5932	switch (face)
5933	{
5934	case SVGA3D_FACE_NONE:
5935	case SVGA3D_FACE_FRONT:
5936	oglFace = GL_FRONT;
5937	break;
5938
5939	case SVGA3D_FACE_BACK:
5940	oglFace = GL_BACK;
5941	break;
5942
5943	case SVGA3D_FACE_FRONT_BACK:
5944	oglFace = GL_FRONT_AND_BACK;
5945	break;
5946
5947	default:
5948	AssertFailedReturn(VERR_INVALID_PARAMETER);
5949	}
5950
5951	/* Save for vm state save/restore. */
5952	pContext->state.aMaterial[face].fValid = true;
5953	pContext->state.aMaterial[face].material = *pMaterial;
5954	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5955
5956	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5957	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5958	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5959	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5960	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5961	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5962
5963	return VINF_SUCCESS;
5964	}
5965
5966	/** @todo Move into separate library as we are using logic from Wine here. */
5967	int vmsvga3dSetLightData(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5968	{
5969	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
5970	AssertReturn(pState, VERR_NO_MEMORY);
5971
5972	LogFunc(("vmsvga3dSetLightData cid=%u index=%d type=%d\n", cid, index, pData->type));
5973	ASSERT_GUEST_RETURN(index < SVGA3D_MAX_LIGHTS, VERR_INVALID_PARAMETER);
5974
5975	PVMSVGA3DCONTEXT pContext;
5976	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
5977	AssertRCReturn(rc, rc);
5978
5979	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5980
5981	/* Store for vm state save/restore */
5982	pContext->state.aLightData[index].fValidData = true;
5983	pContext->state.aLightData[index].data = *pData;
5984
5985	if ( pData->attenuation0 < 0.0f
5986	\|\| pData->attenuation1 < 0.0f
5987	\|\| pData->attenuation2 < 0.0f)
5988	{
5989	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5990	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5991	}
5992
5993	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5994	glMatrixMode(GL_MODELVIEW);
5995	glPushMatrix();
5996	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5997
5998	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5999	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
6000	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
6001
6002	float QuadAttenuation;
6003	if (pData->range * pData->range >= FLT_MIN)
6004	QuadAttenuation = 1.4f / (pData->range * pData->range);
6005	else
6006	QuadAttenuation = 0.0f;
6007
6008	switch (pData->type)
6009	{
6010	case SVGA3D_LIGHTTYPE_POINT:
6011	{
6012	GLfloat position[4];
6013
6014	position[0] = pData->position[0];
6015	position[1] = pData->position[1];
6016	position[2] = pData->position[2];
6017	position[3] = 1.0f;
6018
6019	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6020	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6021
6022	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6023	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6024
6025	/* Attenuation - Are these right? guessing... */
6026	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6027	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6028
6029	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6030	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6031
6032	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6033	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6034
6035	/** @todo range */
6036	break;
6037	}
6038
6039	case SVGA3D_LIGHTTYPE_SPOT1:
6040	{
6041	GLfloat exponent;
6042	GLfloat position[4];
6043	const GLfloat pi = 4.0f * atanf(1.0f);
6044
6045	position[0] = pData->position[0];
6046	position[1] = pData->position[1];
6047	position[2] = pData->position[2];
6048	position[3] = 1.0f;
6049
6050	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
6051	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6052
6053	position[0] = pData->direction[0];
6054	position[1] = pData->direction[1];
6055	position[2] = pData->direction[2];
6056	position[3] = 1.0f;
6057
6058	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
6059	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6060
6061	/*
6062	* opengl-ish and d3d-ish spot lights use too different models for the
6063	* light "intensity" as a function of the angle towards the main light direction,
6064	* so we only can approximate very roughly.
6065	* however spot lights are rather rarely used in games (if ever used at all).
6066	* furthermore if still used, probably nobody pays attention to such details.
6067	*/
6068	if (pData->falloff == 0)
6069	{
6070	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
6071	* falloff resp. exponent parameter as an exponent, so the spot light lighting
6072	* will always be 1.0 for both of them, and we don't have to care for the
6073	* rest of the rather complex calculation
6074	*/
6075	exponent = 0.0f;
6076	}
6077	else
6078	{
6079	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
6080	if (rho < 0.0001f)
6081	rho = 0.0001f;
6082	exponent = -0.3f/log(cos(rho/2));
6083	}
6084	if (exponent > 128.0f)
6085	exponent = 128.0f;
6086
6087	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
6088	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6089
6090	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
6091	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6092
6093	/* Attenuation - Are these right? guessing... */
6094	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
6095	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6096
6097	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
6098	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6099
6100	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
6101	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6102
6103	/** @todo range */
6104	break;
6105	}
6106
6107	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
6108	{
6109	GLfloat position[4];
6110
6111	position[0] = -pData->direction[0];
6112	position[1] = -pData->direction[1];
6113	position[2] = -pData->direction[2];
6114	position[3] = 0.0f;
6115
6116	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
6117	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6118
6119	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
6120	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6121
6122	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
6123	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6124	break;
6125	}
6126
6127	case SVGA3D_LIGHTTYPE_SPOT2:
6128	default:
6129	Log(("Unsupported light type!!\n"));
6130	rc = VERR_INVALID_PARAMETER;
6131	break;
6132	}
6133
6134	/* Restore the modelview matrix */
6135	glPopMatrix();
6136
6137	return rc;
6138	}
6139
6140	int vmsvga3dSetLightEnabled(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, uint32_t enabled)
6141	{
6142	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6143	AssertReturn(pState, VERR_NO_MEMORY);
6144
6145	LogFunc(("cid=%u %d -> %d\n", cid, index, enabled));
6146
6147	PVMSVGA3DCONTEXT pContext;
6148	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6149	AssertRCReturn(rc, rc);
6150
6151	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6152
6153	/* Store for vm state save/restore */
6154	if (index < SVGA3D_MAX_LIGHTS)
6155	pContext->state.aLightData[index].fEnabled = !!enabled;
6156	else
6157	AssertFailed();
6158
6159	if (enabled)
6160	{
6161	if (index < SVGA3D_MAX_LIGHTS)
6162	{
6163	/* Load the default settings if none have been set yet. */
6164	if (!pContext->state.aLightData[index].fValidData)
6165	vmsvga3dSetLightData(pThisCC, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
6166	}
6167	glEnable(GL_LIGHT0 + index);
6168	}
6169	else
6170	glDisable(GL_LIGHT0 + index);
6171
6172	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6173	return VINF_SUCCESS;
6174	}
6175
6176	int vmsvga3dSetViewPort(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
6177	{
6178	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6179	AssertReturn(pState, VERR_NO_MEMORY);
6180
6181	Log(("vmsvga3dSetViewPort cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6182
6183	PVMSVGA3DCONTEXT pContext;
6184	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6185	AssertRCReturn(rc, rc);
6186
6187	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6188
6189	/* Save for vm state save/restore. */
6190	pContext->state.RectViewPort = *pRect;
6191	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
6192
6193	/** @todo y-inversion for partial viewport coordinates? */
6194	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
6195	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6196
6197	/* Reset the projection matrix as that relies on the viewport setting. */
6198	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6199	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION,
6200	pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6201	else
6202	{
6203	float matrix[16];
6204
6205	/* identity matrix if no matrix set. */
6206	memset(matrix, 0, sizeof(matrix));
6207	matrix[0] = 1.0;
6208	matrix[5] = 1.0;
6209	matrix[10] = 1.0;
6210	matrix[15] = 1.0;
6211	vmsvga3dSetTransform(pThisCC, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
6212	}
6213
6214	return VINF_SUCCESS;
6215	}
6216
6217	int vmsvga3dSetClipPlane(PVGASTATECC pThisCC, uint32_t cid, uint32_t index, float plane[4])
6218	{
6219	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6220	AssertReturn(pState, VERR_NO_MEMORY);
6221	double oglPlane[4];
6222
6223	Log(("vmsvga3dSetClipPlane cid=%u %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)));
6224	AssertReturn(index < SVGA3D_NUM_CLIPPLANES, VERR_INVALID_PARAMETER);
6225
6226	PVMSVGA3DCONTEXT pContext;
6227	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6228	AssertRCReturn(rc, rc);
6229
6230	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6231
6232	/* Store for vm state save/restore. */
6233	pContext->state.aClipPlane[index].fValid = true;
6234	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
6235
6236	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
6237	oglPlane[0] = (double)plane[0];
6238	oglPlane[1] = (double)plane[1];
6239	oglPlane[2] = (double)plane[2];
6240	oglPlane[3] = (double)plane[3];
6241
6242	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
6243	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6244
6245	return VINF_SUCCESS;
6246	}
6247
6248	int vmsvga3dSetScissorRect(PVGASTATECC pThisCC, uint32_t cid, SVGA3dRect *pRect)
6249	{
6250	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6251	AssertReturn(pState, VERR_NO_MEMORY);
6252
6253	Log(("vmsvga3dSetScissorRect cid=%u (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
6254
6255	PVMSVGA3DCONTEXT pContext;
6256	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6257	AssertRCReturn(rc, rc);
6258
6259	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6260
6261	/* Store for vm state save/restore. */
6262	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
6263	pContext->state.RectScissor = *pRect;
6264
6265	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
6266	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6267
6268	return VINF_SUCCESS;
6269	}
6270
6271	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
6272	{
6273	/* Convert byte color components to float (0-1.0) */
6274	*pAlpha = (GLfloat)(color >> 24) / 255.0;
6275	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
6276	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
6277	*pBlue = (GLfloat)(color & 0xff) / 255.0;
6278	}
6279
6280	int vmsvga3dCommandClear(PVGASTATECC pThisCC, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
6281	uint32_t cRects, SVGA3dRect *pRect)
6282	{
6283	GLbitfield mask = 0;
6284	GLbitfield restoreMask = 0;
6285	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6286	AssertReturn(pState, VERR_NO_MEMORY);
6287	GLboolean fDepthWriteEnabled = GL_FALSE;
6288	GLboolean afColorWriteEnabled[4] = { GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE };
6289
6290	Log(("vmsvga3dCommandClear cid=%u clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
6291
6292	PVMSVGA3DCONTEXT pContext;
6293	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
6294	AssertRCReturn(rc, rc);
6295
6296	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6297
6298	if (clearFlag & SVGA3D_CLEAR_COLOR)
6299	{
6300	GLfloat red, green, blue, alpha;
6301	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
6302
6303	/* Set the color clear value. */
6304	glClearColor(red, green, blue, alpha);
6305	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6306
6307	mask \|= GL_COLOR_BUFFER_BIT;
6308
6309	/* glClear will not clear the color buffer if writing is disabled. */
6310	glGetBooleanv(GL_COLOR_WRITEMASK, afColorWriteEnabled);
6311	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6312	if ( afColorWriteEnabled[0] == GL_FALSE
6313	\|\| afColorWriteEnabled[1] == GL_FALSE
6314	\|\| afColorWriteEnabled[2] == GL_FALSE
6315	\|\| afColorWriteEnabled[3] == GL_FALSE)
6316	{
6317	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
6318	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6319
6320	restoreMask \|= GL_COLOR_BUFFER_BIT;
6321	}
6322
6323	}
6324
6325	if (clearFlag & SVGA3D_CLEAR_STENCIL)
6326	{
6327	/** @todo possibly the same problem as with glDepthMask */
6328	glClearStencil(stencil);
6329	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6330
6331	mask \|= GL_STENCIL_BUFFER_BIT;
6332	}
6333
6334	if (clearFlag & SVGA3D_CLEAR_DEPTH)
6335	{
6336	glClearDepth((GLdouble)depth);
6337	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6338
6339	mask \|= GL_DEPTH_BUFFER_BIT;
6340
6341	/* glClear will not clear the depth buffer if writing is disabled. */
6342	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
6343	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6344	if (fDepthWriteEnabled == GL_FALSE)
6345	{
6346	glDepthMask(GL_TRUE);
6347	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6348
6349	restoreMask \|= GL_DEPTH_BUFFER_BIT;
6350	}
6351	}
6352
6353	/* Save the current scissor test bit and scissor box. */
6354	glPushAttrib(GL_SCISSOR_BIT);
6355	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6356
6357	if (cRects)
6358	{
6359	glEnable(GL_SCISSOR_TEST);
6360	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6361
6362	for (uint32_t i = 0; i < cRects; ++i)
6363	{
6364	LogFunc(("rect [%d] %d,%d %dx%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h));
6365	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
6366	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6367
6368	glClear(mask);
6369	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6370	}
6371	}
6372	else
6373	{
6374	glDisable(GL_SCISSOR_TEST);
6375	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6376
6377	glClear(mask);
6378	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6379	}
6380
6381	/* Restore the old scissor test bit and box */
6382	glPopAttrib();
6383	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6384
6385	/* Restore the write states. */
6386	if (restoreMask & GL_COLOR_BUFFER_BIT)
6387	{
6388	glColorMask(afColorWriteEnabled[0],
6389	afColorWriteEnabled[1],
6390	afColorWriteEnabled[2],
6391	afColorWriteEnabled[3]);
6392	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6393	}
6394
6395	if (restoreMask & GL_DEPTH_BUFFER_BIT)
6396	{
6397	glDepthMask(fDepthWriteEnabled);
6398	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6399	}
6400
6401	return VINF_SUCCESS;
6402	}
6403
6404	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
6405	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized, uint32_t &cbAttrib)
6406	{
6407	normalized = GL_FALSE;
6408	switch (identity.type)
6409	{
6410	case SVGA3D_DECLTYPE_FLOAT1:
6411	size = 1;
6412	type = GL_FLOAT;
6413	cbAttrib = sizeof(float);
6414	break;
6415	case SVGA3D_DECLTYPE_FLOAT2:
6416	size = 2;
6417	type = GL_FLOAT;
6418	cbAttrib = 2 * sizeof(float);
6419	break;
6420	case SVGA3D_DECLTYPE_FLOAT3:
6421	size = 3;
6422	type = GL_FLOAT;
6423	cbAttrib = 3 * sizeof(float);
6424	break;
6425	case SVGA3D_DECLTYPE_FLOAT4:
6426	size = 4;
6427	type = GL_FLOAT;
6428	cbAttrib = 4 * sizeof(float);
6429	break;
6430
6431	case SVGA3D_DECLTYPE_D3DCOLOR:
6432	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
6433	type = GL_UNSIGNED_BYTE;
6434	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
6435	cbAttrib = sizeof(uint32_t);
6436	break;
6437
6438	case SVGA3D_DECLTYPE_UBYTE4N:
6439	normalized = GL_TRUE;
6440	RT_FALL_THRU();
6441	case SVGA3D_DECLTYPE_UBYTE4:
6442	size = 4;
6443	type = GL_UNSIGNED_BYTE;
6444	cbAttrib = sizeof(uint32_t);
6445	break;
6446
6447	case SVGA3D_DECLTYPE_SHORT2N:
6448	normalized = GL_TRUE;
6449	RT_FALL_THRU();
6450	case SVGA3D_DECLTYPE_SHORT2:
6451	size = 2;
6452	type = GL_SHORT;
6453	cbAttrib = 2 * sizeof(uint16_t);
6454	break;
6455
6456	case SVGA3D_DECLTYPE_SHORT4N:
6457	normalized = GL_TRUE;
6458	RT_FALL_THRU();
6459	case SVGA3D_DECLTYPE_SHORT4:
6460	size = 4;
6461	type = GL_SHORT;
6462	cbAttrib = 4 * sizeof(uint16_t);
6463	break;
6464
6465	case SVGA3D_DECLTYPE_USHORT4N:
6466	normalized = GL_TRUE;
6467	size = 4;
6468	type = GL_UNSIGNED_SHORT;
6469	cbAttrib = 4 * sizeof(uint16_t);
6470	break;
6471
6472	case SVGA3D_DECLTYPE_USHORT2N:
6473	normalized = GL_TRUE;
6474	size = 2;
6475	type = GL_UNSIGNED_SHORT;
6476	cbAttrib = 2 * sizeof(uint16_t);
6477	break;
6478
6479	case SVGA3D_DECLTYPE_UDEC3:
6480	size = 3;
6481	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
6482	cbAttrib = sizeof(uint32_t);
6483	break;
6484
6485	case SVGA3D_DECLTYPE_DEC3N:
6486	normalized = true;
6487	size = 3;
6488	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
6489	cbAttrib = sizeof(uint32_t);
6490	break;
6491
6492	case SVGA3D_DECLTYPE_FLOAT16_2:
6493	size = 2;
6494	type = GL_HALF_FLOAT;
6495	cbAttrib = 2 * sizeof(uint16_t);
6496	break;
6497	case SVGA3D_DECLTYPE_FLOAT16_4:
6498	size = 4;
6499	type = GL_HALF_FLOAT;
6500	cbAttrib = 4 * sizeof(uint16_t);
6501	break;
6502	default:
6503	AssertFailedReturn(VERR_INVALID_PARAMETER);
6504	}
6505
6506	//pVertexElement->Method = identity.method;
6507	//pVertexElement->Usage = identity.usage;
6508
6509	return VINF_SUCCESS;
6510	}
6511
6512	static float vmsvga3dFloat16To32(uint16_t f16)
6513	{
6514	/* From Wiki */
6515	#ifndef INFINITY
6516	static uint32_t const sBitsINFINITY = UINT32_C(0x7f800000);
6517	#define INFINITY ((float const )&sBitsINFINITY)
6518	#endif
6519	#ifndef NAN
6520	static uint32_t const sBitsNAN = UINT32_C(0x7fc00000);
6521	#define NAN ((float const )&sBitsNAN)
6522	#endif
6523
6524	uint16_t const s = (f16 >> UINT16_C(15)) & UINT16_C(0x1);
6525	uint16_t const e = (f16 >> UINT16_C(10)) & UINT16_C(0x1f);
6526	uint16_t const m = (f16 ) & UINT16_C(0x3ff);
6527
6528	float result = s ? 1.0f : -1.0f;
6529	if (e == 0)
6530	{
6531	if (m == 0)
6532	result = 0.0f; / zero, -0 */
6533	else
6534	result = (float)m / 1024.0f / 16384.0f; / subnormal numbers: sign * 2^-14 * 0.m */
6535	}
6536	else if (e == 0x1f)
6537	{
6538	if (m == 0)
6539	result = INFINITY; / +-infinity */
6540	else
6541	result = NAN; /* NAN */
6542	}
6543	else
6544	{
6545	result = powf(2.0f, (float)e - 15.0f) (1.0f + (float)m / 1024.0f); /* sign * 2^(e-15) * 1.m */
6546	}
6547
6548	return result;
6549	}
6550
6551	/* Set a vertex attribute according to VMSVGA vertex declaration. */
6552	static int vmsvga3dSetVertexAttrib(PVMSVGA3DSTATE pState, GLuint index, SVGA3dVertexArrayIdentity const pIdentity, GLvoid const pv)
6553	{
6554	switch (pIdentity->type)
6555	{
6556	case SVGA3D_DECLTYPE_FLOAT1:
6557	{
6558	/* "One-component float expanded to (float, 0, 0, 1)." */
6559	GLfloat const p = (GLfloat )pv;
6560	GLfloat const v[4] = { p[0], 0.0f, 0.0f, 1.0f };
6561	pState->ext.glVertexAttrib4fv(index, v);
6562	break;
6563	}
6564	case SVGA3D_DECLTYPE_FLOAT2:
6565	{
6566	/* "Two-component float expanded to (float, float, 0, 1)." */
6567	GLfloat const p = (GLfloat )pv;
6568	GLfloat const v[4] = { p[0], p[1], 0.0f, 1.0f };
6569	pState->ext.glVertexAttrib4fv(index, v);
6570	break;
6571	}
6572	case SVGA3D_DECLTYPE_FLOAT3:
6573	{
6574	/* "Three-component float expanded to (float, float, float, 1)." */
6575	GLfloat const p = (GLfloat )pv;
6576	GLfloat const v[4] = { p[0], p[1], p[2], 1.0f };
6577	pState->ext.glVertexAttrib4fv(index, v);
6578	break;
6579	}
6580	case SVGA3D_DECLTYPE_FLOAT4:
6581	pState->ext.glVertexAttrib4fv(index, (GLfloat const *)pv);
6582	break;
6583	case SVGA3D_DECLTYPE_D3DCOLOR:
6584	/** @todo Need to swap bytes? */
6585	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6586	break;
6587	case SVGA3D_DECLTYPE_UBYTE4:
6588	pState->ext.glVertexAttrib4ubv(index, (GLubyte const *)pv);
6589	break;
6590	case SVGA3D_DECLTYPE_SHORT2:
6591	{
6592	/* "Two-component, signed short expanded to (value, value, 0, 1)." */
6593	GLshort const p = (GLshort const )pv;
6594	GLshort const v[4] = { p[0], p[1], 0, 1 };
6595	pState->ext.glVertexAttrib4sv(index, v);
6596	break;
6597	}
6598	case SVGA3D_DECLTYPE_SHORT4:
6599	pState->ext.glVertexAttrib4sv(index, (GLshort const *)pv);
6600	break;
6601	case SVGA3D_DECLTYPE_UBYTE4N:
6602	pState->ext.glVertexAttrib4Nubv(index, (GLubyte const *)pv);
6603	break;
6604	case SVGA3D_DECLTYPE_SHORT2N:
6605	{
6606	/* "Normalized, two-component, signed short, expanded to (first short/32767.0, second short/32767.0, 0, 1)." */
6607	GLshort const p = (GLshort const )pv;
6608	GLshort const v[4] = { p[0], p[1], 0, 1 };
6609	pState->ext.glVertexAttrib4Nsv(index, v);
6610	break;
6611	}
6612	case SVGA3D_DECLTYPE_SHORT4N:
6613	pState->ext.glVertexAttrib4Nsv(index, (GLshort const *)pv);
6614	break;
6615	case SVGA3D_DECLTYPE_USHORT2N:
6616	{
6617	GLushort const p = (GLushort const )pv;
6618	GLushort const v[4] = { p[0], p[1], 0, 1 };
6619	pState->ext.glVertexAttrib4Nusv(index, v);
6620	break;
6621	}
6622	case SVGA3D_DECLTYPE_USHORT4N:
6623	pState->ext.glVertexAttrib4Nusv(index, (GLushort const *)pv);
6624	break;
6625	case SVGA3D_DECLTYPE_UDEC3:
6626	{
6627	/** @todo Test */
6628	/* "Three-component, unsigned, 10 10 10 format expanded to (value, value, value, 1)." */
6629	uint32_t const u32 = (uint32_t )pv;
6630	GLfloat const v[4] = { (float)(u32 & 0x3ff), (float)((u32 >> 10) & 0x3ff), (float)((u32 >> 20) & 0x3ff), 1.0f };
6631	pState->ext.glVertexAttrib4fv(index, v);
6632	break;
6633	}
6634	case SVGA3D_DECLTYPE_DEC3N:
6635	{
6636	/** @todo Test */
6637	/* "Three-component, signed, 10 10 10 format normalized and expanded to (v[0]/511.0, v[1]/511.0, v[2]/511.0, 1)." */
6638	uint32_t const u32 = (uint32_t )pv;
6639	GLfloat const v[4] = { (u32 & 0x3ff) / 511.0f, ((u32 >> 10) & 0x3ff) / 511.0f, ((u32 >> 20) & 0x3ff) / 511.0f, 1.0f };
6640	pState->ext.glVertexAttrib4fv(index, v);
6641	break;
6642	}
6643	case SVGA3D_DECLTYPE_FLOAT16_2:
6644	{
6645	/** @todo Test */
6646	/* "Two-component, 16-bit, floating point expanded to (value, value, 0, 1)." */
6647	uint16_t const p = (uint16_t )pv;
6648	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]), 0.0f, 1.0f };
6649	pState->ext.glVertexAttrib4fv(index, v);
6650	break;
6651	}
6652	case SVGA3D_DECLTYPE_FLOAT16_4:
6653	{
6654	/** @todo Test */
6655	uint16_t const p = (uint16_t )pv;
6656	GLfloat const v[4] = { vmsvga3dFloat16To32(p[0]), vmsvga3dFloat16To32(p[1]),
6657	vmsvga3dFloat16To32(p[2]), vmsvga3dFloat16To32(p[3]) };
6658	pState->ext.glVertexAttrib4fv(index, v);
6659	break;
6660	}
6661	default:
6662	AssertFailedReturn(VERR_INVALID_PARAMETER);
6663	}
6664
6665	return VINF_SUCCESS;
6666	}
6667
6668	/* Convert VMWare primitive type to its OpenGL equivalent. */
6669	/* Calculate the vertex count based on the primitive type and nr of primitives. */
6670	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
6671	{
6672	switch (PrimitiveType)
6673	{
6674	case SVGA3D_PRIMITIVE_TRIANGLELIST:
6675	*pMode = GL_TRIANGLES;
6676	pcVertices = cPrimitiveCount 3;
6677	break;
6678	case SVGA3D_PRIMITIVE_POINTLIST:
6679	*pMode = GL_POINTS;
6680	*pcVertices = cPrimitiveCount;
6681	break;
6682	case SVGA3D_PRIMITIVE_LINELIST:
6683	*pMode = GL_LINES;
6684	pcVertices = cPrimitiveCount 2;
6685	break;
6686	case SVGA3D_PRIMITIVE_LINESTRIP:
6687	*pMode = GL_LINE_STRIP;
6688	*pcVertices = cPrimitiveCount + 1;
6689	break;
6690	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
6691	*pMode = GL_TRIANGLE_STRIP;
6692	*pcVertices = cPrimitiveCount + 2;
6693	break;
6694	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
6695	*pMode = GL_TRIANGLE_FAN;
6696	*pcVertices = cPrimitiveCount + 2;
6697	break;
6698	default:
6699	return VERR_INVALID_PARAMETER;
6700	}
6701	return VINF_SUCCESS;
6702	}
6703
6704	static int vmsvga3dResetTransformMatrices(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext)
6705	{
6706	int rc;
6707
6708	/* Reset the view matrix (also takes the world matrix into account). */
6709	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
6710	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW,
6711	pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
6712	else
6713	{
6714	float matrix[16];
6715
6716	/* identity matrix if no matrix set. */
6717	memset(matrix, 0, sizeof(matrix));
6718	matrix[0] = 1.0;
6719	matrix[5] = 1.0;
6720	matrix[10] = 1.0;
6721	matrix[15] = 1.0;
6722	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
6723	}
6724
6725	/* Reset the projection matrix. */
6726	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
6727	{
6728	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
6729	}
6730	else
6731	{
6732	float matrix[16];
6733
6734	/* identity matrix if no matrix set. */
6735	memset(matrix, 0, sizeof(matrix));
6736	matrix[0] = 1.0;
6737	matrix[5] = 1.0;
6738	matrix[10] = 1.0;
6739	matrix[15] = 1.0;
6740	rc = vmsvga3dSetTransform(pThisCC, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
6741	}
6742	AssertRC(rc);
6743	return rc;
6744	}
6745
6746	static int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext,
6747	uint32_t iVertexDeclBase, uint32_t numVertexDecls,
6748	SVGA3dVertexDecl *pVertexDecl,
6749	SVGA3dVertexDivisor const *paVertexDivisors)
6750	{
6751	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6752	unsigned const sidVertex = pVertexDecl[0].array.surfaceId;
6753
6754	PVMSVGA3DSURFACE pVertexSurface;
6755	int rc = vmsvga3dSurfaceFromSid(pState, sidVertex, &pVertexSurface);
6756	AssertRCReturn(rc, rc);
6757
6758	Log(("vmsvga3dDrawPrimitives: vertex surface sid=%u\n", sidVertex));
6759
6760	/* Create and/or bind the vertex buffer. */
6761	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
6762	{
6763	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->paMipmapLevels[0].cbSurface));
6764	PVMSVGA3DCONTEXT pSavedCtx = pContext;
6765	pContext = &pState->SharedCtx;
6766	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6767
6768	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
6769	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6770	pVertexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
6771
6772	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6773	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6774
6775	Assert(pVertexSurface->fDirty);
6776	/** @todo rethink usage dynamic/static */
6777	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->paMipmapLevels[0].cbSurface, pVertexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6778	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6779
6780	pVertexSurface->paMipmapLevels[0].fDirty = false;
6781	pVertexSurface->fDirty = false;
6782
6783	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
6784
6785	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6786	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6787
6788	pContext = pSavedCtx;
6789	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6790	}
6791
6792	Assert(pVertexSurface->fDirty == false);
6793	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6794	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6795
6796	/* Setup the vertex declarations. */
6797	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6798	{
6799	GLint size;
6800	GLenum type;
6801	GLboolean normalized;
6802	uint32_t cbAttrib;
6803	GLuint index = iVertexDeclBase + iVertex;
6804
6805	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));
6806
6807	rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized, cbAttrib);
6808	AssertRCReturn(rc, rc);
6809
6810	ASSERT_GUEST_RETURN( pVertexSurface->paMipmapLevels[0].cbSurface >= pVertexDecl[iVertex].array.offset
6811	&& pVertexSurface->paMipmapLevels[0].cbSurface - pVertexDecl[iVertex].array.offset >= cbAttrib,
6812	VERR_INVALID_PARAMETER);
6813	RT_UNTRUSTED_VALIDATED_FENCE();
6814
6815	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6816	{
6817	/* Use numbered vertex arrays (or attributes) when shaders are active. */
6818	if (pVertexDecl[iVertex].array.stride)
6819	{
6820	pState->ext.glEnableVertexAttribArray(index);
6821	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6822	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6823	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6824	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6825
6826	GLuint divisor = paVertexDivisors && paVertexDivisors[index].instanceData ? 1 : 0;
6827	pState->ext.glVertexAttribDivisor(index, divisor);
6828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6829
6830	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6831	}
6832	else
6833	{
6834	/*
6835	* D3D and OpenGL have a different meaning of value zero for the vertex array stride:
6836	* - D3D (VMSVGA): "use a zero stride to tell the runtime not to increment the vertex buffer offset."
6837	* - OpenGL: "If stride is 0, the generic vertex attributes are understood to be tightly packed in the array."
6838	* VMSVGA uses the D3D semantics.
6839	*
6840	* Use glVertexAttrib in order to tell OpenGL to reuse the zero stride attributes for each vertex.
6841	*/
6842	pState->ext.glDisableVertexAttribArray(index);
6843	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6844
6845	const GLvoid v = (uint8_t )pVertexSurface->paMipmapLevels[0].pSurfaceData + pVertexDecl[iVertex].array.offset;
6846	vmsvga3dSetVertexAttrib(pState, index, &pVertexDecl[iVertex].identity, v);
6847	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6848	}
6849	}
6850	else
6851	{
6852	if (pVertexDecl[iVertex].array.stride == 0)
6853	{
6854	/* Zero stride means that the attribute pointer must not be increased.
6855	* See comment about stride in vmsvga3dDrawPrimitives.
6856	*/
6857	LogRelMax(8, ("VMSVGA: Warning: zero stride array in fixed function pipeline\n"));
6858	AssertFailed();
6859	}
6860
6861	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6862	switch (pVertexDecl[iVertex].identity.usage)
6863	{
6864	case SVGA3D_DECLUSAGE_POSITIONT:
6865	case SVGA3D_DECLUSAGE_POSITION:
6866	{
6867	glEnableClientState(GL_VERTEX_ARRAY);
6868	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6869	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6870	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6871	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6872	break;
6873	}
6874	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6875	AssertFailed();
6876	break;
6877	case SVGA3D_DECLUSAGE_BLENDINDICES:
6878	AssertFailed();
6879	break;
6880	case SVGA3D_DECLUSAGE_NORMAL:
6881	glEnableClientState(GL_NORMAL_ARRAY);
6882	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6883	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6884	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6885	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6886	break;
6887	case SVGA3D_DECLUSAGE_PSIZE:
6888	AssertFailed();
6889	break;
6890	case SVGA3D_DECLUSAGE_TEXCOORD:
6891	/* Specify the affected texture unit. */
6892	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6893	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6894	#else
6895	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6896	#endif
6897	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6898	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6899	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6900	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6901	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6902	break;
6903	case SVGA3D_DECLUSAGE_TANGENT:
6904	AssertFailed();
6905	break;
6906	case SVGA3D_DECLUSAGE_BINORMAL:
6907	AssertFailed();
6908	break;
6909	case SVGA3D_DECLUSAGE_TESSFACTOR:
6910	AssertFailed();
6911	break;
6912	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6913	glEnableClientState(GL_COLOR_ARRAY);
6914	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6915	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6916	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6917	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6918	break;
6919	case SVGA3D_DECLUSAGE_FOG:
6920	glEnableClientState(GL_FOG_COORD_ARRAY);
6921	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6922	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6923	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6924	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6925	break;
6926	case SVGA3D_DECLUSAGE_DEPTH:
6927	AssertFailed();
6928	break;
6929	case SVGA3D_DECLUSAGE_SAMPLE:
6930	AssertFailed();
6931	break;
6932	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6933	}
6934	}
6935
6936	#ifdef LOG_ENABLED
6937	if (pVertexDecl[iVertex].array.stride == 0)
6938	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6939	#endif
6940	}
6941
6942	return VINF_SUCCESS;
6943	}
6944
6945	static int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase,
6946	uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6947	{
6948	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
6949
6950	/* Clean up the vertex declarations. */
6951	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6952	{
6953	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6954	{
6955	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6956	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6957	vmsvga3dResetTransformMatrices(pThisCC, pContext);
6958	}
6959
6960	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6961	{
6962	/* Use numbered vertex arrays when shaders are active. */
6963	pState->ext.glVertexAttribDivisor(iVertexDeclBase + iVertex, 0);
6964	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6965	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6966	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6967	}
6968	else
6969	{
6970	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6971	switch (pVertexDecl[iVertex].identity.usage)
6972	{
6973	case SVGA3D_DECLUSAGE_POSITION:
6974	case SVGA3D_DECLUSAGE_POSITIONT:
6975	glDisableClientState(GL_VERTEX_ARRAY);
6976	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6977	break;
6978	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6979	break;
6980	case SVGA3D_DECLUSAGE_BLENDINDICES:
6981	break;
6982	case SVGA3D_DECLUSAGE_NORMAL:
6983	glDisableClientState(GL_NORMAL_ARRAY);
6984	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6985	break;
6986	case SVGA3D_DECLUSAGE_PSIZE:
6987	break;
6988	case SVGA3D_DECLUSAGE_TEXCOORD:
6989	/* Specify the affected texture unit. */
6990	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6991	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6992	#else
6993	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6994	#endif
6995	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6996	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6997	break;
6998	case SVGA3D_DECLUSAGE_TANGENT:
6999	break;
7000	case SVGA3D_DECLUSAGE_BINORMAL:
7001	break;
7002	case SVGA3D_DECLUSAGE_TESSFACTOR:
7003	break;
7004	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
7005	glDisableClientState(GL_COLOR_ARRAY);
7006	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7007	break;
7008	case SVGA3D_DECLUSAGE_FOG:
7009	glDisableClientState(GL_FOG_COORD_ARRAY);
7010	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7011	break;
7012	case SVGA3D_DECLUSAGE_DEPTH:
7013	break;
7014	case SVGA3D_DECLUSAGE_SAMPLE:
7015	break;
7016	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
7017	}
7018	}
7019	}
7020	/* Unbind the vertex buffer after usage. */
7021	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
7022	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7023	return VINF_SUCCESS;
7024	}
7025
7026	int vmsvga3dDrawPrimitives(PVGASTATECC pThisCC, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
7027	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
7028	SVGA3dVertexDivisor *pVertexDivisor)
7029	{
7030	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7031	AssertReturn(pState, VERR_INTERNAL_ERROR);
7032	uint32_t iCurrentVertex;
7033
7034	Log(("vmsvga3dDrawPrimitives cid=%u numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
7035
7036	/* Caller already check these, but it cannot hurt to check again... */
7037	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
7038	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
7039	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
7040
7041	if (!cVertexDivisor)
7042	pVertexDivisor = NULL; /* Be sure. */
7043
7044	PVMSVGA3DCONTEXT pContext;
7045	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7046	AssertRCReturn(rc, rc);
7047
7048	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7049
7050	/* Check for pretransformed vertex declarations. */
7051	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
7052	{
7053	switch (pVertexDecl[iVertex].identity.usage)
7054	{
7055	case SVGA3D_DECLUSAGE_POSITIONT:
7056	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
7057	RT_FALL_THRU();
7058	case SVGA3D_DECLUSAGE_POSITION:
7059	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
7060	pContext->state.RectViewPort.h,
7061	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
7062	break;
7063	default: /* Shut up MSC. */ break;
7064	}
7065	}
7066
7067	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
7068	if (pContext->pShaderContext)
7069	{
7070	uint32_t rtHeight = 0;
7071
7072	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
7073	{
7074	PVMSVGA3DSURFACE pRenderTarget;
7075	rc = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pRenderTarget);
7076	AssertRCReturn(rc, rc);
7077
7078	rtHeight = pRenderTarget->paMipmapLevels[0].mipmapSize.height;
7079	}
7080
7081	ShaderUpdateState(pContext->pShaderContext, rtHeight);
7082	}
7083
7084	/* Try to figure out if instancing is used.
7085	* Support simple instancing case with one set of indexed data and one set per-instance data.
7086	*/
7087	uint32_t cInstances = 0;
7088	for (uint32_t iVertexDivisor = 0; iVertexDivisor < cVertexDivisor; ++iVertexDivisor)
7089	{
7090	if (pVertexDivisor[iVertexDivisor].indexedData)
7091	{
7092	if (cInstances == 0)
7093	cInstances = pVertexDivisor[iVertexDivisor].count;
7094	else
7095	Assert(cInstances == pVertexDivisor[iVertexDivisor].count);
7096	}
7097	else if (pVertexDivisor[iVertexDivisor].instanceData)
7098	{
7099	Assert(pVertexDivisor[iVertexDivisor].count == 1);
7100	}
7101	}
7102
7103	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
7104	iCurrentVertex = 0;
7105	while (iCurrentVertex < numVertexDecls)
7106	{
7107	uint32_t sidVertex = SVGA_ID_INVALID;
7108	uint32_t iVertex;
7109
7110	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7111	{
7112	if ( sidVertex != SVGA_ID_INVALID
7113	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7114	)
7115	break;
7116	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7117	}
7118
7119	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThisCC, pContext, iCurrentVertex, iVertex - iCurrentVertex,
7120	&pVertexDecl[iCurrentVertex], pVertexDivisor);
7121	AssertRCReturn(rc, rc);
7122
7123	iCurrentVertex = iVertex;
7124	}
7125
7126	/* Now draw the primitives. */
7127	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
7128	{
7129	GLenum modeDraw;
7130	unsigned const sidIndex = pRange[iPrimitive].indexArray.surfaceId;
7131	PVMSVGA3DSURFACE pIndexSurface = NULL;
7132	unsigned cVertices;
7133
7134	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
7135	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
7136	if (RT_FAILURE(rc))
7137	{
7138	AssertRC(rc);
7139	goto internal_error;
7140	}
7141
7142	if (sidIndex != SVGA3D_INVALID_ID)
7143	{
7144	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
7145
7146	rc = vmsvga3dSurfaceFromSid(pState, sidIndex, &pIndexSurface);
7147	if (RT_FAILURE(rc))
7148	{
7149	AssertRC(rc);
7150	goto internal_error;
7151	}
7152
7153	Log(("vmsvga3dDrawPrimitives: index surface sid=%u\n", sidIndex));
7154
7155	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
7156	{
7157	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->paMipmapLevels[0].cbSurface));
7158	pContext = &pState->SharedCtx;
7159	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7160
7161	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
7162	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7163	pIndexSurface->enmOGLResType = VMSVGA3D_OGLRESTYPE_BUFFER;
7164
7165	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7167
7168	Assert(pIndexSurface->fDirty);
7169
7170	/** @todo rethink usage dynamic/static */
7171	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->paMipmapLevels[0].cbSurface, pIndexSurface->paMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
7172	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7173
7174	pIndexSurface->paMipmapLevels[0].fDirty = false;
7175	pIndexSurface->fDirty = false;
7176
7177	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
7178
7179	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
7180	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7181
7182	pContext = pState->papContexts[cid];
7183	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7184	}
7185	Assert(pIndexSurface->fDirty == false);
7186
7187	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
7188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7189	}
7190
7191	if (!pIndexSurface)
7192	{
7193	/* Render without an index buffer */
7194	Log(("DrawPrimitive %d cPrimitives=%d cVertices=%d index index bias=%d cInstances=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias, cInstances));
7195	if (cInstances == 0)
7196	{
7197	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
7198	}
7199	else
7200	{
7201	pState->ext.glDrawArraysInstanced(modeDraw, pRange[iPrimitive].indexBias, cVertices, cInstances);
7202	}
7203	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7204	}
7205	else
7206	{
7207	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
7208
7209	GLenum indexType;
7210	switch (pRange[iPrimitive].indexWidth)
7211	{
7212	case 1: indexType = GL_UNSIGNED_BYTE; break;
7213	case 2: indexType = GL_UNSIGNED_SHORT; break;
7214	default: AssertMsgFailed(("indexWidth %d\n", pRange[iPrimitive].indexWidth));
7215	RT_FALL_THROUGH();
7216	case 4: indexType = GL_UNSIGNED_INT; break;
7217	}
7218
7219	Log(("DrawIndexedPrimitive %d cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d cInstances=%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, cInstances));
7220	if (cInstances == 0)
7221	{
7222	/* Render with an index buffer */
7223	if (pRange[iPrimitive].indexBias == 0)
7224	glDrawElements(modeDraw,
7225	cVertices,
7226	indexType,
7227	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
7228	else
7229	pState->ext.glDrawElementsBaseVertex(modeDraw,
7230	cVertices,
7231	indexType,
7232	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7233	pRange[iPrimitive].indexBias); /* basevertex */
7234	}
7235	else
7236	{
7237	/* Render with an index buffer */
7238	if (pRange[iPrimitive].indexBias == 0)
7239	pState->ext.glDrawElementsInstanced(modeDraw,
7240	cVertices,
7241	indexType,
7242	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7243	cInstances);
7244	else
7245	pState->ext.glDrawElementsInstancedBaseVertex(modeDraw,
7246	cVertices,
7247	indexType,
7248	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
7249	cInstances,
7250	pRange[iPrimitive].indexBias); /* basevertex */
7251	}
7252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7253
7254	/* Unbind the index buffer after usage. */
7255	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
7256	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7257	}
7258	}
7259
7260	internal_error:
7261
7262	/* Deactivate the vertex declarations. */
7263	iCurrentVertex = 0;
7264	while (iCurrentVertex < numVertexDecls)
7265	{
7266	uint32_t sidVertex = SVGA_ID_INVALID;
7267	uint32_t iVertex;
7268
7269	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
7270	{
7271	if ( sidVertex != SVGA_ID_INVALID
7272	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
7273	)
7274	break;
7275	sidVertex = pVertexDecl[iVertex].array.surfaceId;
7276	}
7277
7278	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThisCC, pContext, iCurrentVertex,
7279	iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
7280	AssertRCReturn(rc, rc);
7281
7282	iCurrentVertex = iVertex;
7283	}
7284
7285	#ifdef DEBUG
7286	/* Check whether 'activeTexture' on texture unit 'i' matches what we expect. */
7287	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); ++i)
7288	{
7289	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
7290	{
7291	PVMSVGA3DSURFACE pTexture;
7292	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[i], &pTexture);
7293	AssertContinue(RT_SUCCESS(rc2));
7294
7295	GLint activeTextureUnit = 0;
7296	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
7297	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7298
7299	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
7300	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7301
7302	GLint activeTexture = 0;
7303	glGetIntegerv(pTexture->bindingGL, &activeTexture);
7304	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7305
7306	pState->ext.glActiveTexture(activeTextureUnit);
7307	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
7308
7309	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
7310	("%d vs %d unit %d (active unit %d) sid=%u\n", pTexture->oglId.texture, activeTexture, i,
7311	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
7312	}
7313	}
7314	#endif
7315
7316	#if 0
7317	/* Dump render target to a bitmap. */
7318	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA3D_INVALID_ID)
7319	{
7320	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]);
7321	PVMSVGA3DSURFACE pSurface;
7322	int rc2 = vmsvga3dSurfaceFromSid(pState, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], &pSurface);
7323	if (RT_SUCCESS(rc2))
7324	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post");
7325	# if 0
7326	/* Stage 0 texture. */
7327	if (pContext->aSidActiveTextures[0] != SVGA3D_INVALID_ID)
7328	{
7329	vmsvga3dUpdateHeapBuffersForSurfaces(pThisCC, pContext->aSidActiveTextures[0]);
7330	rc2 = vmsvga3dSurfaceFromSid(pState, pContext->aSidActiveTextures[0], &pSurface);
7331	if (RT_SUCCESS(rc2))
7332	vmsvga3dInfoSurfaceToBitmap(NULL, pSurface, "bmpgl", "rt", "-post-tx");
7333	}
7334	# endif
7335	}
7336	#endif
7337
7338	return rc;
7339	}
7340
7341
7342	int vmsvga3dShaderDefine(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
7343	{
7344	PVMSVGA3DSHADER pShader;
7345	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7346	AssertReturn(pState, VERR_NO_MEMORY);
7347
7348	Log(("vmsvga3dShaderDefine cid=%u shid=%d type=%s cbData=0x%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
7349
7350	PVMSVGA3DCONTEXT pContext;
7351	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7352	AssertRCReturn(rc, rc);
7353
7354	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
7355
7356	rc = vmsvga3dShaderParse(type, cbData, pShaderData);
7357	if (RT_FAILURE(rc))
7358	{
7359	AssertRC(rc);
7360	vmsvga3dShaderLogRel("Failed to parse", type, cbData, pShaderData);
7361	return rc;
7362	}
7363
7364	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7365
7366	if (type == SVGA3D_SHADERTYPE_VS)
7367	{
7368	if (shid >= pContext->cVertexShaders)
7369	{
7370	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7371	AssertReturn(pvNew, VERR_NO_MEMORY);
7372	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
7373	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
7374	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
7375	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
7376	pContext->cVertexShaders = shid + 1;
7377	}
7378	/* If one already exists with this id, then destroy it now. */
7379	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
7380	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paVertexShader[shid].type);
7381
7382	pShader = &pContext->paVertexShader[shid];
7383	}
7384	else
7385	{
7386	Assert(type == SVGA3D_SHADERTYPE_PS);
7387	if (shid >= pContext->cPixelShaders)
7388	{
7389	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
7390	AssertReturn(pvNew, VERR_NO_MEMORY);
7391	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
7392	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
7393	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
7394	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
7395	pContext->cPixelShaders = shid + 1;
7396	}
7397	/* If one already exists with this id, then destroy it now. */
7398	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
7399	vmsvga3dShaderDestroy(pThisCC, cid, shid, pContext->paPixelShader[shid].type);
7400
7401	pShader = &pContext->paPixelShader[shid];
7402	}
7403
7404	memset(pShader, 0, sizeof(*pShader));
7405	pShader->id = shid;
7406	pShader->cid = cid;
7407	pShader->type = type;
7408	pShader->cbData = cbData;
7409	pShader->pShaderProgram = RTMemAllocZ(cbData);
7410	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
7411	memcpy(pShader->pShaderProgram, pShaderData, cbData);
7412
7413	#ifdef DUMP_SHADER_DISASSEMBLY
7414	LPD3DXBUFFER pDisassembly;
7415	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
7416	if (hr == D3D_OK)
7417	{
7418	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
7419	pDisassembly->Release();
7420	}
7421	#endif
7422
7423	switch (type)
7424	{
7425	case SVGA3D_SHADERTYPE_VS:
7426	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pVertexShader);
7427	AssertRC(rc);
7428	break;
7429
7430	case SVGA3D_SHADERTYPE_PS:
7431	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, cbData, &pShader->u.pPixelShader);
7432	AssertRC(rc);
7433	break;
7434
7435	default:
7436	AssertFailedReturn(VERR_INVALID_PARAMETER);
7437	}
7438	if (rc != VINF_SUCCESS)
7439	{
7440	vmsvga3dShaderLogRel("Failed to create", type, cbData, pShaderData);
7441
7442	RTMemFree(pShader->pShaderProgram);
7443	memset(pShader, 0, sizeof(*pShader));
7444	pShader->id = SVGA3D_INVALID_ID;
7445	}
7446
7447	return rc;
7448	}
7449
7450	int vmsvga3dShaderDestroy(PVGASTATECC pThisCC, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
7451	{
7452	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7453	AssertReturn(pState, VERR_NO_MEMORY);
7454	PVMSVGA3DSHADER pShader = NULL;
7455
7456	Log(("vmsvga3dShaderDestroy cid=%u shid=%d type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
7457
7458	PVMSVGA3DCONTEXT pContext;
7459	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7460	AssertRCReturn(rc, rc);
7461
7462	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7463
7464	if (type == SVGA3D_SHADERTYPE_VS)
7465	{
7466	if ( shid < pContext->cVertexShaders
7467	&& pContext->paVertexShader[shid].id == shid)
7468	{
7469	pShader = &pContext->paVertexShader[shid];
7470	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7471	AssertRC(rc);
7472	}
7473	}
7474	else
7475	{
7476	Assert(type == SVGA3D_SHADERTYPE_PS);
7477	if ( shid < pContext->cPixelShaders
7478	&& pContext->paPixelShader[shid].id == shid)
7479	{
7480	pShader = &pContext->paPixelShader[shid];
7481	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7482	AssertRC(rc);
7483	}
7484	}
7485
7486	if (pShader)
7487	{
7488	if (pShader->pShaderProgram)
7489	RTMemFree(pShader->pShaderProgram);
7490	memset(pShader, 0, sizeof(*pShader));
7491	pShader->id = SVGA3D_INVALID_ID;
7492	}
7493	else
7494	AssertFailedReturn(VERR_INVALID_PARAMETER);
7495
7496	return VINF_SUCCESS;
7497	}
7498
7499	int vmsvga3dShaderSet(PVGASTATECC pThisCC, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
7500	{
7501	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7502	AssertReturn(pState, VERR_NO_MEMORY);
7503	int rc;
7504
7505	Log(("vmsvga3dShaderSet cid=%u type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
7506
7507	if (!pContext)
7508	{
7509	rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7510	AssertRCReturn(rc, rc);
7511	}
7512
7513	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7514
7515	if (type == SVGA3D_SHADERTYPE_VS)
7516	{
7517	/* Save for vm state save/restore. */
7518	pContext->state.shidVertex = shid;
7519	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
7520
7521	if ( shid < pContext->cVertexShaders
7522	&& pContext->paVertexShader[shid].id == shid)
7523	{
7524	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
7525	Assert(type == pShader->type);
7526
7527	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
7528	AssertRCReturn(rc, rc);
7529	}
7530	else
7531	if (shid == SVGA_ID_INVALID)
7532	{
7533	/* Unselect shader. */
7534	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
7535	AssertRCReturn(rc, rc);
7536	}
7537	else
7538	AssertFailedReturn(VERR_INVALID_PARAMETER);
7539	}
7540	else
7541	{
7542	/* Save for vm state save/restore. */
7543	pContext->state.shidPixel = shid;
7544	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
7545
7546	Assert(type == SVGA3D_SHADERTYPE_PS);
7547	if ( shid < pContext->cPixelShaders
7548	&& pContext->paPixelShader[shid].id == shid)
7549	{
7550	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
7551	Assert(type == pShader->type);
7552
7553	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
7554	AssertRCReturn(rc, rc);
7555	}
7556	else
7557	if (shid == SVGA_ID_INVALID)
7558	{
7559	/* Unselect shader. */
7560	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
7561	AssertRCReturn(rc, rc);
7562	}
7563	else
7564	AssertFailedReturn(VERR_INVALID_PARAMETER);
7565	}
7566
7567	return VINF_SUCCESS;
7568	}
7569
7570	int vmsvga3dShaderSetConst(PVGASTATECC pThisCC, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
7571	{
7572	PVMSVGA3DSTATE pState = pThisCC->svga.p3dState;
7573	AssertReturn(pState, VERR_NO_MEMORY);
7574
7575	Log(("vmsvga3dShaderSetConst cid=%u reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
7576
7577	PVMSVGA3DCONTEXT pContext;
7578	int rc = vmsvga3dContextFromCid(pState, cid, &pContext);
7579	AssertRCReturn(rc, rc);
7580
7581	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7582
7583	for (uint32_t i = 0; i < cRegisters; i++)
7584	{
7585	#ifdef LOG_ENABLED
7586	switch (ctype)
7587	{
7588	case SVGA3D_CONST_TYPE_FLOAT:
7589	{
7590	float pValuesF = (float )pValues;
7591	Log(("ConstantF %d: value=" FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR ", " FLOAT_FMT_STR "\n",
7592	reg + i, FLOAT_FMT_ARGS(pValuesF[i4 + 0]), FLOAT_FMT_ARGS(pValuesF[i4 + 1]), FLOAT_FMT_ARGS(pValuesF[i4 + 2]), FLOAT_FMT_ARGS(pValuesF[i4 + 3])));
7593	break;
7594	}
7595
7596	case SVGA3D_CONST_TYPE_INT:
7597	Log(("ConstantI %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7598	break;
7599
7600	case SVGA3D_CONST_TYPE_BOOL:
7601	Log(("ConstantB %d: value=%d, %d, %d, %d\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
7602	break;
7603
7604	default:
7605	AssertFailedReturn(VERR_INVALID_PARAMETER);
7606	}
7607	#endif
7608	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
7609	}
7610
7611	switch (type)
7612	{
7613	case SVGA3D_SHADERTYPE_VS:
7614	switch (ctype)
7615	{
7616	case SVGA3D_CONST_TYPE_FLOAT:
7617	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7618	break;
7619
7620	case SVGA3D_CONST_TYPE_INT:
7621	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7622	break;
7623
7624	case SVGA3D_CONST_TYPE_BOOL:
7625	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7626	break;
7627
7628	default:
7629	AssertFailedReturn(VERR_INVALID_PARAMETER);
7630	}
7631	AssertRCReturn(rc, rc);
7632	break;
7633
7634	case SVGA3D_SHADERTYPE_PS:
7635	switch (ctype)
7636	{
7637	case SVGA3D_CONST_TYPE_FLOAT:
7638	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
7639	break;
7640
7641	case SVGA3D_CONST_TYPE_INT:
7642	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
7643	break;
7644
7645	case SVGA3D_CONST_TYPE_BOOL:
7646	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
7647	break;
7648
7649	default:
7650	AssertFailedReturn(VERR_INVALID_PARAMETER);
7651	}
7652	AssertRCReturn(rc, rc);
7653	break;
7654
7655	default:
7656	AssertFailedReturn(VERR_INVALID_PARAMETER);
7657	}
7658
7659	return VINF_SUCCESS;
7660	}
7661
7662	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7663	{
7664	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
7665	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7666
7667	GLuint idQuery = 0;
7668	pState->ext.glGenQueries(1, &idQuery);
7669	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7670	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
7671	pContext->occlusion.idQuery = idQuery;
7672	return VINF_SUCCESS;
7673	}
7674
7675	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7676	{
7677	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
7678	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7679
7680	if (pContext->occlusion.idQuery)
7681	{
7682	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
7683	}
7684	return VINF_SUCCESS;
7685	}
7686
7687	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7688	{
7689	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
7690	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7691
7692	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
7693	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7694	return VINF_SUCCESS;
7695	}
7696
7697	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
7698	{
7699	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
7700	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7701
7702	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
7703	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7704	return VINF_SUCCESS;
7705	}
7706
7707	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
7708	{
7709	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
7710	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
7711
7712	GLuint pixels = 0;
7713	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
7714	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
7715
7716	*pu32Pixels = (uint32_t)pixels;
7717	return VINF_SUCCESS;
7718	}

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 87766

Download in other formats: