DevVGA-SVGA3d-ogl.cpp@ 71930

Last change on this file since 71930 was 71686, checked in by vboxsync, 7 years ago
DevVGA: Code cleanup in progress. bugref:9094
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File size: 263.0 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 71686 2018-04-05 15:03:53Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	/* Enable to disassemble defined shaders. (Windows host only) */
23	#if defined(RT_OS_WINDOWS) && defined(DEBUG) && 0 /* Disabled as we don't have the DirectX SDK avaible atm. */
24	# define DUMP_SHADER_DISASSEMBLY
25	#endif
26	#ifdef DEBUG_bird
27	//# define RTMEM_WRAP_TO_EF_APIS
28	#endif
29	#define LOG_GROUP LOG_GROUP_DEV_VMSVGA
30	#include <VBox/vmm/pdmdev.h>
31	#include <VBox/version.h>
32	#include <VBox/err.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/pgm.h>
35
36	#include <iprt/assert.h>
37	#include <iprt/semaphore.h>
38	#include <iprt/uuid.h>
39	#include <iprt/mem.h>
40
41	#include <VBoxVideo.h> /* required by DevVGA.h */
42
43	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
44	#include "DevVGA.h"
45
46	#include "DevVGA-SVGA.h"
47	#include "DevVGA-SVGA3d.h"
48	#include "DevVGA-SVGA3d-internal.h"
49
50	#ifdef DUMP_SHADER_DISASSEMBLY
51	# include <d3dx9shader.h>
52	#endif
53
54	#include <stdlib.h>
55	#include <math.h>
56	#include <float.h> /* FLT_MIN */
57
58
59	/*********************************************************************************************************************************
60	* Defined Constants And Macros *
61	*********************************************************************************************************************************/
62	#ifndef VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE
63	# define VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE 1.0
64	#endif
65
66	#ifdef RT_OS_WINDOWS
67	# define OGLGETPROCADDRESS wglGetProcAddress
68
69	#elif defined(RT_OS_DARWIN)
70	# include <dlfcn.h>
71	# define OGLGETPROCADDRESS MyNSGLGetProcAddress
72	/** Resolves an OpenGL symbol. */
73	static void MyNSGLGetProcAddress(const char pszSymbol)
74	{
75	/* Another copy in shaderapi.c. */
76	static void *s_pvImage = NULL;
77	if (s_pvImage == NULL)
78	s_pvImage = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
79	return s_pvImage ? dlsym(s_pvImage, pszSymbol) : NULL;
80	}
81
82	#else
83	# define OGLGETPROCADDRESS(x) glXGetProcAddress((const GLubyte *)x)
84	#endif
85
86	/* Invert y-coordinate for OpenGL's bottom left origin. */
87	#define D3D_TO_OGL_Y_COORD(ptrSurface, y_coordinate) (ptrSurface->pMipmapLevels[0].mipmapSize.height - (y_coordinate))
88	#define D3D_TO_OGL_Y_COORD_MIPLEVEL(ptrMipLevel, y_coordinate) (ptrMipLevel->size.height - (y_coordinate))
89
90	//#define MANUAL_FLIP_SURFACE_DATA
91	/* Enable to render the result of DrawPrimitive in a seperate window. */
92	//#define DEBUG_GFX_WINDOW
93
94
95	/**
96	* Macro for doing something and then checking for errors during initialization.
97	* Uses AssertLogRelMsg.
98	*/
99	#define VMSVGA3D_INIT_CHECKED(a_Expr) \
100	do \
101	{ \
102	a_Expr; \
103	GLenum iGlError = glGetError(); \
104	AssertLogRelMsg(iGlError == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x\n", #a_Expr, iGlError)); \
105	} while (0)
106
107	/**
108	* Macro for doing something and then checking for errors during initialization,
109	* doing the same in the other context when enabled.
110	*
111	* This will try both profiles in dual profile builds. Caller must be in the
112	* default context.
113	*
114	* Uses AssertLogRelMsg to indicate trouble.
115	*/
116	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
117	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) \
118	do \
119	{ \
120	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
121	a_Expr; \
122	GLenum iGlError = glGetError(); \
123	if (iGlError != GL_NO_ERROR) \
124	{ \
125	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pOtherCtx); \
126	for (uint32_t i = 0; i < 64; i++) if (glGetError() == GL_NO_ERROR) break; Assert(glGetError() == GL_NO_ERROR); \
127	a_Expr; \
128	GLenum iGlError2 = glGetError(); \
129	AssertLogRelMsg(iGlError2 == GL_NO_ERROR, ("VMSVGA3d: %s -> %#x / %#x\n", #a_Expr, iGlError, iGlError2)); \
130	VMSVGA3D_SET_CURRENT_CONTEXT(a_pState, a_pContext); \
131	} \
132	} while (0)
133	#else
134	# define VMSVGA3D_INIT_CHECKED_BOTH(a_pState, a_pContext, a_pOtherCtx, a_Expr) VMSVGA3D_INIT_CHECKED(a_Expr)
135	#endif
136
137
138	/*********************************************************************************************************************************
139	* Global Variables *
140	*********************************************************************************************************************************/
141	/* Define the default light parameters as specified by MSDN. */
142	/** @todo move out; fetched from Wine */
143	const SVGA3dLightData vmsvga3d_default_light =
144	{
145	SVGA3D_LIGHTTYPE_DIRECTIONAL, /* type */
146	false, /* inWorldSpace */
147	{ 1.0f, 1.0f, 1.0f, 0.0f }, /* diffuse r,g,b,a */
148	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* specular r,g,b,a */
149	{ 0.0f, 0.0f, 0.0f, 0.0f }, /* ambient r,g,b,a, */
150	{ 0.0f, 0.0f, 0.0f }, /* position x,y,z */
151	{ 0.0f, 0.0f, 1.0f }, /* direction x,y,z */
152	0.0f, /* range */
153	0.0f, /* falloff */
154	0.0f, 0.0f, 0.0f, /* attenuation 0,1,2 */
155	0.0f, /* theta */
156	0.0f /* phi */
157	};
158
159
160	/*********************************************************************************************************************************
161	* Internal Functions *
162	*********************************************************************************************************************************/
163	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid);
164	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha);
165
166	/* Generated by VBoxDef2LazyLoad from the VBoxSVGA3D.def and VBoxSVGA3DObjC.def files. */
167	extern "C" int ExplicitlyLoadVBoxSVGA3D(bool fResolveAllImports, PRTERRINFO pErrInfo);
168
169
170	/**
171	* Checks if the given OpenGL extension is supported.
172	*
173	* @returns true if supported, false if not.
174	* @param pState The VMSVGA3d state.
175	* @param rsMinGLVersion The OpenGL version that introduced this feature
176	* into the core.
177	* @param pszWantedExtension The name of the OpenGL extension we want padded
178	* with one space at each end.
179	* @remarks Init time only.
180	*/
181	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
182	{
183	RT_NOREF(rsMinGLVersion);
184	/* check padding. */
185	Assert(pszWantedExtension[0] == ' ');
186	Assert(pszWantedExtension[1] != ' ');
187	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
188
189	/* Look it up. */
190	bool fRet = false;
191	if (strstr(pState->pszExtensions, pszWantedExtension))
192	fRet = true;
193
194	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( rsMinGLVersion == 0.0
197	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
205	#endif
206	return fRet;
207	}
208
209
210	/**
211	* Outputs GL_EXTENSIONS list to the release log.
212	*/
213	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
214	{
215	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
216	bool fBuffered = RTLogRelSetBuffering(true);
217
218	/*
219	* Determin the column widths first.
220	*/
221	size_t acchWidths[4] = { 1, 1, 1, 1 };
222	uint32_t i;
223	const char *psz = pszExtensions;
224	for (i = 0; ; i++)
225	{
226	while (*psz == ' ')
227	psz++;
228	if (!*psz)
229	break;
230
231	const char *pszEnd = strchr(psz, ' ');
232	AssertBreak(pszEnd);
233	size_t cch = pszEnd - psz;
234
235	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
236	if (acchWidths[iColumn] < cch)
237	acchWidths[iColumn] = cch;
238
239	psz = pszEnd;
240	}
241
242	/*
243	* Output it.
244	*/
245	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
246	psz = pszExtensions;
247	for (i = 0; ; i++)
248	{
249	while (*psz == ' ')
250	psz++;
251	if (!*psz)
252	break;
253
254	const char *pszEnd = strchr(psz, ' ');
255	AssertBreak(pszEnd);
256	size_t cch = pszEnd - psz;
257
258	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
259	if (iColumn == 0)
260	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
261	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
262	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
263	else
264	LogRel((" %.*s", cch, psz));
265
266	psz = pszEnd;
267	}
268
269	RTLogRelSetBuffering(fBuffered);
270	LogRel(("\n"));
271	}
272
273	/**
274	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
275	* @a ppszExtensions.
276	*
277	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
278	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
279	* @param fGLProfileVersion The OpenGL profile version.
280	*/
281	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
282	{
283	int rc;
284	*ppszExtensions = NULL;
285
286	/*
287	* Try the old glGetString interface first.
288	*/
289	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
290	if (pszExtensions)
291	{
292	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
293	AssertLogRelRCReturn(rc, rc);
294	}
295	else
296	{
297	/*
298	* The new interface where each extension string is retrieved separately.
299	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
300	* the above GL_EXTENSIONS error lingers on darwin. sucks.
301	*/
302	#ifndef GL_NUM_EXTENSIONS
303	# define GL_NUM_EXTENSIONS 0x821D
304	#endif
305	GLint cExtensions = 1024;
306	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
307	Assert(cExtensions != 1024);
308
309	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
310	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
311
312	rc = RTStrAAppend(ppszExtensions, " ");
313	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
314	{
315	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
316	if (pszExt)
317	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
318	}
319	AssertRCReturn(rc, rc);
320	}
321
322	#if 1
323	/*
324	* Add extensions promoted into the core OpenGL profile.
325	*/
326	static const struct
327	{
328	float fGLVersion;
329	const char *pszzExtensions;
330	} s_aPromotedExtensions[] =
331	{
332	{
333	1.1f,
334	" GL_EXT_vertex_array \0"
335	" GL_EXT_polygon_offset \0"
336	" GL_EXT_blend_logic_op \0"
337	" GL_EXT_texture \0"
338	" GL_EXT_copy_texture \0"
339	" GL_EXT_subtexture \0"
340	" GL_EXT_texture_object \0"
341	" GL_ARB_framebuffer_object \0"
342	" GL_ARB_map_buffer_range \0"
343	" GL_ARB_vertex_array_object \0"
344	"\0"
345	},
346	{
347	1.2f,
348	" EXT_texture3D \0"
349	" EXT_bgra \0"
350	" EXT_packed_pixels \0"
351	" EXT_rescale_normal \0"
352	" EXT_separate_specular_color \0"
353	" SGIS_texture_edge_clamp \0"
354	" SGIS_texture_lod \0"
355	" EXT_draw_range_elements \0"
356	"\0"
357	},
358	{
359	1.3f,
360	" GL_ARB_texture_compression \0"
361	" GL_ARB_texture_cube_map \0"
362	" GL_ARB_multisample \0"
363	" GL_ARB_multitexture \0"
364	" GL_ARB_texture_env_add \0"
365	" GL_ARB_texture_env_combine \0"
366	" GL_ARB_texture_env_dot3 \0"
367	" GL_ARB_texture_border_clamp \0"
368	" GL_ARB_transpose_matrix \0"
369	"\0"
370	},
371	{
372	1.5f,
373	" GL_SGIS_generate_mipmap \0"
374	/" GL_NV_blend_equare \0"/
375	" GL_ARB_depth_texture \0"
376	" GL_ARB_shadow \0"
377	" GL_EXT_fog_coord \0"
378	" GL_EXT_multi_draw_arrays \0"
379	" GL_ARB_point_parameters \0"
380	" GL_EXT_secondary_color \0"
381	" GL_EXT_blend_func_separate \0"
382	" GL_EXT_stencil_wrap \0"
383	" GL_ARB_texture_env_crossbar \0"
384	" GL_EXT_texture_lod_bias \0"
385	" GL_ARB_texture_mirrored_repeat \0"
386	" GL_ARB_window_pos \0"
387	"\0"
388	},
389	{
390	1.6f,
391	" GL_ARB_vertex_buffer_object \0"
392	" GL_ARB_occlusion_query \0"
393	" GL_EXT_shadow_funcs \0"
394	},
395	{
396	2.0f,
397	" GL_ARB_shader_objects \0" /??/
398	" GL_ARB_vertex_shader \0" /??/
399	" GL_ARB_fragment_shader \0" /??/
400	" GL_ARB_shading_language_100 \0" /??/
401	" GL_ARB_draw_buffers \0"
402	" GL_ARB_texture_non_power_of_two \0"
403	" GL_ARB_point_sprite \0"
404	" GL_ATI_separate_stencil \0"
405	" GL_EXT_stencil_two_side \0"
406	"\0"
407	},
408	{
409	2.1f,
410	" GL_ARB_pixel_buffer_object \0"
411	" GL_EXT_texture_sRGB \0"
412	"\0"
413	},
414	{
415	3.0f,
416	" GL_ARB_framebuffer_object \0"
417	" GL_ARB_map_buffer_range \0"
418	" GL_ARB_vertex_array_object \0"
419	"\0"
420	},
421	{
422	3.1f,
423	" GL_ARB_copy_buffer \0"
424	" GL_ARB_uniform_buffer_object \0"
425	"\0"
426	},
427	{
428	3.2f,
429	" GL_ARB_vertex_array_bgra \0"
430	" GL_ARB_draw_elements_base_vertex \0"
431	" GL_ARB_fragment_coord_conventions \0"
432	" GL_ARB_provoking_vertex \0"
433	" GL_ARB_seamless_cube_map \0"
434	" GL_ARB_texture_multisample \0"
435	" GL_ARB_depth_clamp \0"
436	" GL_ARB_sync \0"
437	" GL_ARB_geometry_shader4 \0" /??/
438	"\0"
439	},
440	{
441	3.3f,
442	" GL_ARB_blend_func_extended \0"
443	" GL_ARB_sampler_objects \0"
444	" GL_ARB_explicit_attrib_location \0"
445	" GL_ARB_occlusion_query2 \0"
446	" GL_ARB_shader_bit_encoding \0"
447	" GL_ARB_texture_rgb10_a2ui \0"
448	" GL_ARB_texture_swizzle \0"
449	" GL_ARB_timer_query \0"
450	" GL_ARB_vertex_type_2_10_10_10_rev \0"
451	"\0"
452	},
453	{
454	4.0f,
455	" GL_ARB_texture_query_lod \0"
456	" GL_ARB_draw_indirect \0"
457	" GL_ARB_gpu_shader5 \0"
458	" GL_ARB_gpu_shader_fp64 \0"
459	" GL_ARB_shader_subroutine \0"
460	" GL_ARB_tessellation_shader \0"
461	" GL_ARB_texture_buffer_object_rgb32 \0"
462	" GL_ARB_texture_cube_map_array \0"
463	" GL_ARB_texture_gather \0"
464	" GL_ARB_transform_feedback2 \0"
465	" GL_ARB_transform_feedback3 \0"
466	"\0"
467	},
468	{
469	4.1f,
470	" GL_ARB_ES2_compatibility \0"
471	" GL_ARB_get_program_binary \0"
472	" GL_ARB_separate_shader_objects \0"
473	" GL_ARB_shader_precision \0"
474	" GL_ARB_vertex_attrib_64bit \0"
475	" GL_ARB_viewport_array \0"
476	"\0"
477	}
478	};
479
480	uint32_t cPromoted = 0;
481	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
482	{
483	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
484	while (*pszExt)
485	{
486	# ifdef VBOX_STRICT
487	size_t cchExt = strlen(pszExt);
488	Assert(cchExt > 3);
489	Assert(pszExt[0] == ' ');
490	Assert(pszExt[1] != ' ');
491	Assert(pszExt[cchExt - 2] != ' ');
492	Assert(pszExt[cchExt - 1] == ' ');
493	# endif
494
495	if (strstr(*ppszExtensions, pszExt) == NULL)
496	{
497	if (cPromoted++ == 0)
498	{
499	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
500	AssertRCReturn(rc, rc);
501	}
502
503	rc = RTStrAAppend(ppszExtensions, pszExt);
504	AssertRCReturn(rc, rc);
505	}
506
507	pszExt = strchr(pszExt, '\0') + 1;
508	}
509	}
510	#endif
511
512	return VINF_SUCCESS;
513	}
514
515	/**
516	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
517	*/
518	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
519	{
520	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
521	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
523	#else
524	NOREF(pThis);
525	NOREF(fOtherProfile);
526	#endif
527	}
528
529
530	/**
531	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
532	*/
533	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
534	char *pszBuf, size_t cbBuf, bool fOtherProfile)
535	{
536	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
537	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
538	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
539	while (*pszCur == ' ')
540	pszCur++;
541	if (!*pszCur)
542	return false;
543
544	const char *pszEnd = strchr(pszCur, ' ');
545	AssertReturn(pszEnd, false);
546	size_t cch = pszEnd - pszCur;
547	if (cch < cbBuf)
548	{
549	memcpy(pszBuf, pszCur, cch);
550	pszBuf[cch] = '\0';
551	}
552	else if (cbBuf > 0)
553	{
554	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
555	pszBuf[cbBuf - 1] = '\0';
556	}
557
558	ppvEnumCtx = (void )pszEnd;
559	return true;
560	}
561
562
563	/**
564	* Initializes the VMSVGA3D state during VGA device construction.
565	*
566	* Failure are generally not fatal, 3D support will just be disabled.
567	*
568	* @returns VBox status code.
569	* @param pThis The VGA device state where svga.p3dState will be modified.
570	*/
571	int vmsvga3dInit(PVGASTATE pThis)
572	{
573	AssertCompile(GL_TRUE == 1);
574	AssertCompile(GL_FALSE == 0);
575
576	/*
577	* Load and resolve imports from the external shared libraries.
578	*/
579	RTERRINFOSTATIC ErrInfo;
580	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
581	if (RT_FAILURE(rc))
582	{
583	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
584	return rc;
585	}
586	#ifdef RT_OS_DARWIN
587	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
588	if (RT_FAILURE(rc))
589	{
590	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
591	return rc;
592	}
593	#endif
594
595	/*
596	* Allocate the state.
597	*/
598	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
599	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
600
601	#ifdef RT_OS_WINDOWS
602	/* Create event semaphore and async IO thread. */
603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
604	rc = RTSemEventCreate(&pState->WndRequestSem);
605	if (RT_SUCCESS(rc))
606	{
607	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
608	"VMSVGA3DWND");
609	if (RT_SUCCESS(rc))
610	return VINF_SUCCESS;
611
612	/* bail out. */
613	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
614	RTSemEventDestroy(pState->WndRequestSem);
615	}
616	else
617	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
618	RTMemFree(pThis->svga.p3dState);
619	pThis->svga.p3dState = NULL;
620	return rc;
621	#else
622	return VINF_SUCCESS;
623	#endif
624	}
625
626	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
627	int vmsvga3dPowerOn(PVGASTATE pThis)
628	{
629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
630	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
631	PVMSVGA3DCONTEXT pContext;
632	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
633	PVMSVGA3DCONTEXT pOtherCtx;
634	#endif
635	int rc;
636
637	if (pState->rsGLVersion != 0.0)
638	return VINF_SUCCESS; /* already initialized (load state) */
639
640	/*
641	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
642	*/
643	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
644	AssertRCReturn(rc, rc);
645
646	pContext = pState->papContexts[1];
647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
648
649	LogRel(("VMSVGA3d: OpenGL version: %s\n"
650	"VMSVGA3d: OpenGL Vendor: %s\n"
651	"VMSVGA3d: OpenGL Renderer: %s\n"
652	"VMSVGA3d: OpenGL shader language version: %s\n",
653	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
654	glGetString(GL_SHADING_LANGUAGE_VERSION)));
655
656	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
657	AssertRCReturn(rc, rc);
658	vmsvga3dLogRelExtensions("", pState->pszExtensions);
659
660	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
661
662
663	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
664	/*
665	* Get the extension list for the alternative profile so we can better
666	* figure out the shader model and stuff.
667	*/
668	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
669	AssertLogRelRCReturn(rc, rc);
670	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
671
672	pOtherCtx = pState->papContexts[2];
673	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
674
675	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
676	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
677	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
678	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
679	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
680	glGetString(GL_SHADING_LANGUAGE_VERSION)));
681
682	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
683	AssertRCReturn(rc, rc);
684	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
685
686	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
687
688	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
689	#else
690	pState->pszOtherExtensions = (char *)"";
691	pState->rsOtherGLVersion = pState->rsGLVersion;
692	#endif
693
694
695	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
696	{
697	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
698	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
699	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
700	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
701	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
702	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
703	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
704	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
705	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
706	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
707	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
708	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
709	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
710	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
711	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
712	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
713	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
714	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
715	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
716	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
717	}
718	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
719	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
720	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
721	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
722	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
723	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
724	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
725	#endif
726	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
727	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
729	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
731	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
733	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
735	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
737	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
739	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
741	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
743	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
745	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
749	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
751	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
753	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
754	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
755	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
756	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
757	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
758	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
759	#endif
760	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
761	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
762
763	/* OpenGL 3.2 core */
764	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
765	{
766	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
767	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
768	}
769	else
770	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
771
772	/* OpenGL 3.2 core */
773	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
774	{
775	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
776	}
777	else
778	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
779
780	/* Extension support */
781	#if defined(RT_OS_DARWIN)
782	/** @todo OpenGL version history suggest this, verify... */
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
784	#else
785	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
786	#endif
787
788	#define GLGETPROC(ProcType, ProcName) do { \
789	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
790	AssertMsgReturn(pState->ext.ProcName, (#ProcName " missing"), VERR_NOT_IMPLEMENTED); \
791	} while(0)
792	#define GLGETPROCOPT(ProcType, ProcName) do { \
793	pState->ext.ProcName = (ProcType)OGLGETPROCADDRESS(#ProcName); \
794	AssertMsg(pState->ext.ProcName, (#ProcName " missing (optional)")); \
795	} while(0)
796
797	GLGETPROCOPT(PFNGLGENQUERIESPROC , glGenQueries);
798	GLGETPROCOPT(PFNGLDELETEQUERIESPROC , glDeleteQueries);
799	GLGETPROCOPT(PFNGLBEGINQUERYPROC , glBeginQuery);
800	GLGETPROCOPT(PFNGLENDQUERYPROC , glEndQuery);
801	GLGETPROCOPT(PFNGLGETQUERYOBJECTUIVPROC , glGetQueryObjectuiv);
802
803	#undef GLGETPROCOPT
804	#undef GLGETPROC
805	/*
806	* Initialize the capabilities with sensible defaults.
807	*/
808	pState->caps.maxActiveLights = 1;
809	pState->caps.maxTextureBufferSize = 65536;
810	pState->caps.maxTextures = 1;
811	pState->caps.maxClipDistances = 4;
812	pState->caps.maxColorAttachments = 1;
813	pState->caps.maxRectangleTextureSize = 2048;
814	pState->caps.maxTextureAnisotropy = 2;
815	pState->caps.maxVertexShaderInstructions = 1024;
816	pState->caps.maxFragmentShaderInstructions = 1024;
817	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
818	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
819	pState->caps.flPointSize[0] = 1;
820	pState->caps.flPointSize[1] = 1;
821
822	/*
823	* Query capabilities
824	*/
825	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
827	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
828	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
829	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
830	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
831	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
832	#else
833	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
834	#endif
835	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
836	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
837	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
838	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
839
840	if (pState->ext.glGetProgramivARB)
841	{
842	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
843	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
844	&pState->caps.maxFragmentShaderTemps));
845	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
846	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
847	&pState->caps.maxFragmentShaderInstructions));
848	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
849	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
850	&pState->caps.maxVertexShaderTemps));
851	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
852	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
853	&pState->caps.maxVertexShaderInstructions));
854	}
855	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
856
857	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
858	* ARB Assembly Language
859	* These are done through testing the presence of extensions. You should test them in this order:
860	* GL_NV_gpu_program4: SM 4.0 or better.
861	* GL_NV_vertex_program3: SM 3.0 or better.
862	* GL_ARB_fragment_program: SM 2.0 or better.
863	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
864	*
865	*/
866	/** @todo distinguish between vertex and pixel shaders??? */
867	const char pszShadingLanguageVersion = (const char )glGetString(GL_SHADING_LANGUAGE_VERSION);
868	float v = pszShadingLanguageVersion ? atof(pszShadingLanguageVersion) : 0.0f;
869	if (v >= 3.30f)
870	{
871	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
872	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
873	}
874	else
875	if (v >= 1.20f)
876	{
877	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
878	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
879	}
880	else
881	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
882	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
883	{
884	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
885	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
886	}
887	else
888	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
889	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
890	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
891	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
892	)
893	{
894	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
895	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
896	}
897	else
898	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
899	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
900	{
901	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
902	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
903	}
904	else
905	{
906	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
907	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
908	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
909	}
910
911	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
912	{
913	/** @todo Intel drivers don't support this extension! */
914	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
915	}
916	#if 0
917	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
918	SVGA3D_DEVCAP_QUERY_TYPES = 15,
919	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
920	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
921	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
922	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
923	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
924	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
925	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
926	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
927	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
928	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
929	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
930	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
931	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
932	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
933	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
934	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
935	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
936	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
937	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
938	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
939	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
940	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
941	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
942	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
943	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
944	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
945	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
946	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
947	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
948	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
949	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
950	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
951	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
952	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
953	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
954	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
955	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
956	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
957	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
958	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
959	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
960	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
961	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
962	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
963	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
964	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
965	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
966	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
967	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
968	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
969	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
970	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
971	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
972	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
973	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
974	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
975	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
976	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
977	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
978	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
979	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
980	#endif
981
982	LogRel(("VMSVGA3d: Capabilities:\n"));
983	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
984	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
985	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
986	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
987	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
988	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
989	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
990	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
991	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
992	pState->caps.maxFragmentShaderTemps,
993	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
994	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
995	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
996	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
997
998
999	/* Initialize the shader library. */
1000	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
1001	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
1002	rc = ShaderInitLib(&pState->ShaderIf);
1003	AssertRC(rc);
1004
1005	/* Cleanup */
1006	rc = vmsvga3dContextDestroy(pThis, 1);
1007	AssertRC(rc);
1008	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1009	rc = vmsvga3dContextDestroy(pThis, 2);
1010	AssertRC(rc);
1011	#endif
1012
1013	if ( pState->rsGLVersion < 3.0
1014	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
1015	{
1016	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
1017	return VERR_NOT_IMPLEMENTED;
1018	}
1019	if ( !pState->ext.glIsRenderbuffer
1020	\|\| !pState->ext.glBindRenderbuffer
1021	\|\| !pState->ext.glDeleteRenderbuffers
1022	\|\| !pState->ext.glGenRenderbuffers
1023	\|\| !pState->ext.glRenderbufferStorage
1024	\|\| !pState->ext.glGetRenderbufferParameteriv
1025	\|\| !pState->ext.glIsFramebuffer
1026	\|\| !pState->ext.glBindFramebuffer
1027	\|\| !pState->ext.glDeleteFramebuffers
1028	\|\| !pState->ext.glGenFramebuffers
1029	\|\| !pState->ext.glCheckFramebufferStatus
1030	\|\| !pState->ext.glFramebufferTexture1D
1031	\|\| !pState->ext.glFramebufferTexture2D
1032	\|\| !pState->ext.glFramebufferTexture3D
1033	\|\| !pState->ext.glFramebufferRenderbuffer
1034	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1035	\|\| !pState->ext.glGenerateMipmap
1036	\|\| !pState->ext.glBlitFramebuffer
1037	\|\| !pState->ext.glRenderbufferStorageMultisample
1038	\|\| !pState->ext.glFramebufferTextureLayer)
1039	{
1040	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1041	return VERR_NOT_IMPLEMENTED;
1042	}
1043
1044	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1045	pState->idTestContext = SVGA_ID_INVALID;
1046	#endif
1047	return VINF_SUCCESS;
1048	}
1049
1050	int vmsvga3dReset(PVGASTATE pThis)
1051	{
1052	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1053	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1054
1055	/* Destroy all leftover surfaces. */
1056	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1057	{
1058	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1059	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1060	}
1061
1062	/* Destroy all leftover contexts. */
1063	for (uint32_t i = 0; i < pState->cContexts; i++)
1064	{
1065	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1066	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1067	}
1068
1069	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1070	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1071
1072	return VINF_SUCCESS;
1073	}
1074
1075	int vmsvga3dTerminate(PVGASTATE pThis)
1076	{
1077	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1078	AssertReturn(pState, VERR_WRONG_ORDER);
1079	int rc;
1080
1081	rc = vmsvga3dReset(pThis);
1082	AssertRCReturn(rc, rc);
1083
1084	/* Terminate the shader library. */
1085	rc = ShaderDestroyLib();
1086	AssertRC(rc);
1087
1088	#ifdef RT_OS_WINDOWS
1089	/* Terminate the window creation thread. */
1090	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1091	AssertRCReturn(rc, rc);
1092
1093	RTSemEventDestroy(pState->WndRequestSem);
1094	#elif defined(RT_OS_DARWIN)
1095
1096	#elif defined(RT_OS_LINUX)
1097	/* signal to the thread that it is supposed to exit */
1098	pState->bTerminate = true;
1099	/* wait for it to terminate */
1100	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1101	AssertRC(rc);
1102	XCloseDisplay(pState->display);
1103	#endif
1104
1105	RTStrFree(pState->pszExtensions);
1106	pState->pszExtensions = NULL;
1107	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1108	RTStrFree(pState->pszOtherExtensions);
1109	#endif
1110	pState->pszOtherExtensions = NULL;
1111
1112	return VINF_SUCCESS;
1113	}
1114
1115
1116	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1117	{
1118	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1119	* redraw it. */
1120
1121	#ifdef RT_OS_DARWIN
1122	RT_NOREF(pOldViewport);
1123	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1124	if ( pState
1125	&& idScreen == 0
1126	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1127	{
1128	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1129	}
1130	#else
1131	RT_NOREF(pThis, idScreen, pOldViewport);
1132	#endif
1133	}
1134
1135
1136	/**
1137	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1138	* given surface format capability.
1139	*
1140	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1141	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1142	*
1143	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1144	* of implicit guest expectations:
1145	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1146	*/
1147	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1148	{
1149	uint32_t result = 0;
1150
1151	/** @todo missing:
1152	*
1153	* SVGA3DFORMAT_OP_PIXELSIZE
1154	*/
1155
1156	switch (idx3dCaps)
1157	{
1158	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1159	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1160	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1161	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1162	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1163	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1164	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1165	break;
1166
1167	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1168	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1169	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1170	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1171	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1172	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1173	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1174	break;
1175	}
1176
1177	/** @todo check hardware caps! */
1178	switch (idx3dCaps)
1179	{
1180	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1181	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1182	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1183	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1184	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1185	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1186	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1187	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1188	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1189	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1190	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1191	result \|= SVGA3DFORMAT_OP_TEXTURE
1192	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1193	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1194	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1195	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1196	\| SVGA3DFORMAT_OP_CUBETEXTURE
1197	\| SVGA3DFORMAT_OP_SRGBREAD
1198	\| SVGA3DFORMAT_OP_SRGBWRITE;
1199	break;
1200
1201	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1202	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1203	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1204	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1205	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1206	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1207	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1208	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1209	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1210	break;
1211
1212	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1213	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1214	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1215	result \|= SVGA3DFORMAT_OP_TEXTURE
1216	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1217	\| SVGA3DFORMAT_OP_CUBETEXTURE
1218	\| SVGA3DFORMAT_OP_SRGBREAD;
1219	break;
1220
1221	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1222	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1223	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1224	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1225	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1226	break;
1227
1228	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1229	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1230	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1231	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1232	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1233	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1234	break;
1235
1236	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1237	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1238	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1239
1240	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1241	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1242	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1243	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1244	break;
1245	}
1246	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1247
1248	return result;
1249	}
1250
1251	#if 0 /* unused */
1252	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1253	{
1254	RT_NOREF(pState3D, idx3dCaps);
1255
1256	/** @todo test this somehow */
1257	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1258
1259	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1260	return result;
1261	}
1262	#endif
1263
1264
1265	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1266	{
1267	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1268	AssertReturn(pState, VERR_NO_MEMORY);
1269	int rc = VINF_SUCCESS;
1270
1271	*pu32Val = 0;
1272
1273	/*
1274	* The capabilities access by current (2015-03-01) linux sources (gallium,
1275	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1276	* aren't access.
1277	*/
1278
1279	switch (idx3dCaps)
1280	{
1281	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1282	case SVGA3D_DEVCAP_3D:
1283	pu32Val = 1; / boolean? */
1284	break;
1285
1286	case SVGA3D_DEVCAP_MAX_LIGHTS:
1287	*pu32Val = pState->caps.maxActiveLights;
1288	break;
1289
1290	case SVGA3D_DEVCAP_MAX_TEXTURES:
1291	*pu32Val = pState->caps.maxTextures;
1292	break;
1293
1294	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1295	*pu32Val = pState->caps.maxClipDistances;
1296	break;
1297
1298	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1299	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1300	*pu32Val = pState->caps.vertexShaderVersion;
1301	break;
1302
1303	case SVGA3D_DEVCAP_VERTEX_SHADER:
1304	/* boolean? */
1305	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1306	break;
1307
1308	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1309	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1310	*pu32Val = pState->caps.fragmentShaderVersion;
1311	break;
1312
1313	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1314	/* boolean? */
1315	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1316	break;
1317
1318	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1319	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1320	/* Must be obsolete by now; surface format caps specify the same thing. */
1321	rc = VERR_INVALID_PARAMETER;
1322	break;
1323
1324	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1325	break;
1326
1327	/*
1328	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1329	* return TRUE. Even on physical hardware that does not support
1330	* these formats natively, the SVGA3D device will provide an emulation
1331	* which should be invisible to the guest OS.
1332	*/
1333	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1334	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1335	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1336	*pu32Val = 1;
1337	break;
1338
1339	case SVGA3D_DEVCAP_QUERY_TYPES:
1340	break;
1341
1342	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1343	break;
1344
1345	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1346	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1347	AssertCompile(sizeof(uint32_t) == sizeof(float));
1348	(float )pu32Val = pState->caps.flPointSize[1];
1349	break;
1350
1351	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1352	/** @todo ?? */
1353	rc = VERR_INVALID_PARAMETER;
1354	break;
1355
1356	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1357	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1358	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1359	*pu32Val = pState->caps.maxRectangleTextureSize;
1360	break;
1361
1362	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1363	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1364	//*pu32Val = pCaps->MaxVolumeExtent;
1365	*pu32Val = 256;
1366	break;
1367
1368	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1369	pu32Val = 32768; / hardcoded in Wine */
1370	break;
1371
1372	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1373	//*pu32Val = pCaps->MaxTextureAspectRatio;
1374	break;
1375
1376	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1377	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1378	*pu32Val = pState->caps.maxTextureAnisotropy;
1379	break;
1380
1381	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1382	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1383	pu32Val = 0xFFFFF; / hardcoded in Wine */
1384	break;
1385
1386	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1387	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1388	*pu32Val = pState->caps.maxVertexShaderInstructions;
1389	break;
1390
1391	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1392	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1393	break;
1394
1395	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1396	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1397	*pu32Val = pState->caps.maxVertexShaderTemps;
1398	break;
1399
1400	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1401	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1402	*pu32Val = pState->caps.maxFragmentShaderTemps;
1403	break;
1404
1405	case SVGA3D_DEVCAP_TEXTURE_OPS:
1406	break;
1407
1408	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1409	break;
1410
1411	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1412	break;
1413
1414	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1415	break;
1416
1417	case SVGA3D_DEVCAP_SUPERSAMPLE:
1418	break;
1419
1420	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1421	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1422	break;
1423
1424	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1425	break;
1426
1427	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1428	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1429	*pu32Val = pState->caps.maxColorAttachments;
1430	break;
1431
1432	/*
1433	* This is the maximum number of SVGA context IDs that the guest
1434	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1435	*/
1436	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1437	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1438	break;
1439
1440	/*
1441	* This is the maximum number of SVGA surface IDs that the guest
1442	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1443	*/
1444	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1445	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1446	break;
1447
1448	#if 0 /* Appeared more recently, not yet implemented. */
1449	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1450	case SVGA3D_DEVCAP_LINE_AA:
1451	break;
1452	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1453	case SVGA3D_DEVCAP_LINE_STIPPLE:
1454	break;
1455	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1456	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1457	break;
1458	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1459	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1460	break;
1461	#endif
1462
1463	/*
1464	* Supported surface formats.
1465	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1466	*/
1467	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1469	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1470	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1471	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1472	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1473	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1474	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1475	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1476	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1477	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1478	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1479	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1480	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1481	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1482	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1483	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1484	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1485	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1486	break;
1487
1488	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1489	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1490	pu32Val = 0; / apparently not supported in OpenGL */
1491	break;
1492
1493	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1494	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1495	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1496	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1497	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1498	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1499	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1500	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1501	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1502	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1503	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1504	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1505	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1506	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1507	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1508	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1509	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1510	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1511	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1512	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1513	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1514	break;
1515
1516	/* Linux: Not referenced in current sources. */
1517	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1518	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1519	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1520	rc = VERR_INVALID_PARAMETER;
1521	*pu32Val = 0;
1522	break;
1523
1524	default:
1525	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1526	rc = VERR_INVALID_PARAMETER;
1527	break;
1528	}
1529
1530	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1531	return rc;
1532	}
1533
1534	/**
1535	* Convert SVGA format value to its OpenGL equivalent
1536	*
1537	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1538	* help from wined3dformat_from_d3dformat().
1539	*/
1540	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1541	{
1542	switch (format)
1543	{
1544	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1545	pSurface->internalFormatGL = GL_RGB8;
1546	pSurface->formatGL = GL_BGRA;
1547	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1548	break;
1549	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1550	pSurface->internalFormatGL = GL_RGBA8;
1551	pSurface->formatGL = GL_BGRA;
1552	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1553	break;
1554	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1555	pSurface->internalFormatGL = GL_RGB5;
1556	pSurface->formatGL = GL_RGB;
1557	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1558	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1559	break;
1560	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1561	pSurface->internalFormatGL = GL_RGB5;
1562	pSurface->formatGL = GL_BGRA;
1563	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1564	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1565	break;
1566	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1567	pSurface->internalFormatGL = GL_RGB5_A1;
1568	pSurface->formatGL = GL_BGRA;
1569	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1570	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1571	break;
1572	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1573	pSurface->internalFormatGL = GL_RGBA4;
1574	pSurface->formatGL = GL_BGRA;
1575	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1576	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1577	break;
1578
1579	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1580	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1581	pSurface->formatGL = GL_DEPTH_COMPONENT;
1582	pSurface->typeGL = GL_UNSIGNED_INT;
1583	break;
1584	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1585	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1586	pSurface->formatGL = GL_DEPTH_COMPONENT;
1587	pSurface->typeGL = GL_UNSIGNED_SHORT;
1588	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1589	break;
1590	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1591	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1592	pSurface->formatGL = GL_DEPTH_STENCIL;
1593	pSurface->typeGL = GL_UNSIGNED_INT;
1594	break;
1595	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1596	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo ??? */
1597	pSurface->formatGL = GL_DEPTH_STENCIL;
1598	pSurface->typeGL = GL_UNSIGNED_SHORT;
1599	/** @todo Wine sources hints at no hw support for this, so test this one! */
1600	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1601	break;
1602	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1603	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1604	pSurface->formatGL = GL_DEPTH_COMPONENT;
1605	pSurface->typeGL = GL_UNSIGNED_INT;
1606	break;
1607
1608	/* Advanced D3D9 depth formats. */
1609	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1610	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1611	pSurface->formatGL = GL_DEPTH_COMPONENT;
1612	pSurface->typeGL = GL_FLOAT;
1613	break;
1614
1615	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1616	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1617	pSurface->formatGL = GL_DEPTH_COMPONENT;
1618	pSurface->typeGL = GL_FLOAT; /* ??? */
1619	break;
1620
1621	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1622	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1623	pSurface->formatGL = GL_DEPTH_STENCIL;
1624	pSurface->typeGL = GL_INT; /* ??? */
1625	break;
1626
1627	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1628	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1629	#if 0
1630	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1631	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1632	#else /* wine suggests: */
1633	pSurface->formatGL = GL_RGBA;
1634	pSurface->typeGL = GL_UNSIGNED_BYTE;
1635	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1636	#endif
1637	break;
1638
1639	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1640	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1641	#if 0 /** @todo this needs testing... */
1642	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1643	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1644	#else /* wine suggests: */
1645	pSurface->formatGL = GL_RGBA;
1646	pSurface->typeGL = GL_UNSIGNED_BYTE;
1647	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1648	#endif
1649	break;
1650
1651	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1652	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1653	#if 0 /** @todo this needs testing... */
1654	pSurface->formatGL = GL_RGBA_S3TC;
1655	pSurface->typeGL = GL_UNSIGNED_INT;
1656	#else /* wine suggests: */
1657	pSurface->formatGL = GL_RGBA;
1658	pSurface->typeGL = GL_UNSIGNED_BYTE;
1659	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1660	#endif
1661	break;
1662
1663	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1664	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1665	pSurface->formatGL = GL_LUMINANCE;
1666	pSurface->typeGL = GL_UNSIGNED_BYTE;
1667	break;
1668
1669	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1670	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1671	pSurface->formatGL = GL_LUMINANCE;
1672	pSurface->typeGL = GL_UNSIGNED_SHORT;
1673	break;
1674
1675	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1676	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1677	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1678	pSurface->typeGL = GL_UNSIGNED_BYTE;
1679	break;
1680
1681	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1682	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1683	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1684	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1685	break;
1686
1687	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1688	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1689	pSurface->formatGL = GL_ALPHA;
1690	pSurface->typeGL = GL_UNSIGNED_BYTE;
1691	break;
1692
1693	#if 0
1694
1695	/* Bump-map formats */
1696	case SVGA3D_BUMPU8V8:
1697	return D3DFMT_V8U8;
1698	case SVGA3D_BUMPL6V5U5:
1699	return D3DFMT_L6V5U5;
1700	case SVGA3D_BUMPX8L8V8U8:
1701	return D3DFMT_X8L8V8U8;
1702	case SVGA3D_BUMPL8V8U8:
1703	/* No corresponding D3D9 equivalent. */
1704	AssertFailedReturn(D3DFMT_UNKNOWN);
1705	/* signed bump-map formats */
1706	case SVGA3D_V8U8:
1707	return D3DFMT_V8U8;
1708	case SVGA3D_Q8W8V8U8:
1709	return D3DFMT_Q8W8V8U8;
1710	case SVGA3D_CxV8U8:
1711	return D3DFMT_CxV8U8;
1712	/* mixed bump-map formats */
1713	case SVGA3D_X8L8V8U8:
1714	return D3DFMT_X8L8V8U8;
1715	case SVGA3D_A2W10V10U10:
1716	return D3DFMT_A2W10V10U10;
1717	#endif
1718
1719	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1720	pSurface->internalFormatGL = GL_RGBA16F;
1721	pSurface->formatGL = GL_RGBA;
1722	#if 0 /* bird: wine uses half float, sounds correct to me... */
1723	pSurface->typeGL = GL_FLOAT;
1724	#else
1725	pSurface->typeGL = GL_HALF_FLOAT;
1726	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1727	#endif
1728	break;
1729
1730	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1731	pSurface->internalFormatGL = GL_RGBA32F;
1732	pSurface->formatGL = GL_RGBA;
1733	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1734	break;
1735
1736	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1737	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1738	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1739	pSurface->formatGL = GL_RGBA;
1740	#else
1741	pSurface->formatGL = GL_BGRA;
1742	#endif
1743	pSurface->typeGL = GL_UNSIGNED_INT;
1744	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1745	break;
1746
1747
1748	/* Single- and dual-component floating point formats */
1749	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1750	pSurface->internalFormatGL = GL_R16F;
1751	pSurface->formatGL = GL_RED;
1752	#if 0 /* bird: wine uses half float, sounds correct to me... */
1753	pSurface->typeGL = GL_FLOAT;
1754	#else
1755	pSurface->typeGL = GL_HALF_FLOAT;
1756	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1757	#endif
1758	break;
1759	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1760	pSurface->internalFormatGL = GL_R32F;
1761	pSurface->formatGL = GL_RG;
1762	pSurface->typeGL = GL_FLOAT;
1763	break;
1764	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1765	pSurface->internalFormatGL = GL_RG16F;
1766	pSurface->formatGL = GL_RG;
1767	#if 0 /* bird: wine uses half float, sounds correct to me... */
1768	pSurface->typeGL = GL_FLOAT;
1769	#else
1770	pSurface->typeGL = GL_HALF_FLOAT;
1771	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1772	#endif
1773	break;
1774	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1775	pSurface->internalFormatGL = GL_RG32F;
1776	pSurface->formatGL = GL_RG;
1777	pSurface->typeGL = GL_FLOAT;
1778	break;
1779
1780	/*
1781	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1782	* the most efficient format to use when creating new surfaces
1783	* expressly for index or vertex data.
1784	*/
1785	case SVGA3D_BUFFER:
1786	pSurface->internalFormatGL = -1;
1787	pSurface->formatGL = -1;
1788	pSurface->typeGL = -1;
1789	break;
1790
1791	#if 0
1792	return D3DFMT_UNKNOWN;
1793
1794	case SVGA3D_V16U16:
1795	return D3DFMT_V16U16;
1796	#endif
1797
1798	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1799	pSurface->internalFormatGL = GL_RG16;
1800	pSurface->formatGL = GL_RG;
1801	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1802	pSurface->typeGL = GL_UNSIGNED_INT;
1803	#else
1804	pSurface->typeGL = GL_UNSIGNED_SHORT;
1805	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1806	#endif
1807	break;
1808
1809	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1810	pSurface->internalFormatGL = GL_RGBA16;
1811	pSurface->formatGL = GL_RGBA;
1812	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1813	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1814	#else
1815	pSurface->typeGL = GL_UNSIGNED_SHORT;
1816	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1817	#endif
1818	break;
1819
1820	#if 0
1821	/* Packed Video formats */
1822	case SVGA3D_UYVY:
1823	return D3DFMT_UYVY;
1824	case SVGA3D_YUY2:
1825	return D3DFMT_YUY2;
1826
1827	/* Planar video formats */
1828	case SVGA3D_NV12:
1829	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1830
1831	/* Video format with alpha */
1832	case SVGA3D_AYUV:
1833	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1834
1835	case SVGA3D_BC4_UNORM:
1836	case SVGA3D_BC5_UNORM:
1837	/* Unknown; only in DX10 & 11 */
1838	break;
1839	#endif
1840	default:
1841	AssertMsgFailed(("Unsupported format %d\n", format));
1842	break;
1843	}
1844	}
1845
1846
1847	#if 0
1848	/**
1849	* Convert SVGA multi sample count value to its D3D equivalent
1850	*/
1851	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1852	{
1853	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1854	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1855
1856	if (multisampleCount > 16)
1857	return D3DMULTISAMPLE_NONE;
1858
1859	/** @todo exact same mapping as d3d? */
1860	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1861	}
1862	#endif
1863
1864	/**
1865	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1866	*
1867	* @param pState The VMSVGA3d state.
1868	* @param pSurface The surface being destroyed.
1869	*/
1870	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1871	{
1872	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1873	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1874
1875	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1876	{
1877	case SVGA3D_SURFACE_CUBEMAP:
1878	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1879	break;
1880
1881	case SVGA3D_SURFACE_HINT_INDEXBUFFER \| SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1882	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1883	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1884	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1885	{
1886	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1887	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1888	}
1889	break;
1890
1891	case SVGA3D_SURFACE_HINT_TEXTURE:
1892	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1893	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1894	{
1895	glDeleteTextures(1, &pSurface->oglId.texture);
1896	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1897	}
1898	break;
1899
1900	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1901	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1902	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1903	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1904	{
1905	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1906	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1907	}
1908	break;
1909
1910	default:
1911	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1912	break;
1913	}
1914	}
1915
1916
1917	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1918	{
1919	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1920	uint32_t sidSrc = src.sid;
1921	uint32_t sidDest = dest.sid;
1922	int rc = VINF_SUCCESS;
1923
1924	AssertReturn(pState, VERR_NO_MEMORY);
1925	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1926	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1927	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1928	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1929
1930	for (uint32_t i = 0; i < cCopyBoxes; i++)
1931	{
1932	SVGA3dBox destBox, srcBox;
1933
1934	srcBox.x = pBox[i].srcx;
1935	srcBox.y = pBox[i].srcy;
1936	srcBox.z = pBox[i].srcz;
1937	srcBox.w = pBox[i].w;
1938	srcBox.h = pBox[i].h;
1939	srcBox.d = pBox[i].d;
1940
1941	destBox.x = pBox[i].x;
1942	destBox.y = pBox[i].y;
1943	destBox.z = pBox[i].z;
1944	destBox.w = pBox[i].w;
1945	destBox.h = pBox[i].h;
1946	destBox.d = pBox[i].d;
1947
1948	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1949	AssertRCReturn(rc, rc);
1950	}
1951	return VINF_SUCCESS;
1952	}
1953
1954
1955	/**
1956	* Save texture unpacking parameters and loads those appropriate for the given
1957	* surface.
1958	*
1959	* @param pState The VMSVGA3D state structure.
1960	* @param pContext The active context.
1961	* @param pSurface The surface.
1962	* @param pSave Where to save stuff.
1963	*/
1964	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1965	PVMSVGAPACKPARAMS pSave)
1966	{
1967	RT_NOREF(pState);
1968
1969	/*
1970	* Save (ignore errors, setting the defaults we want and avoids restore).
1971	*/
1972	pSave->iAlignment = 1;
1973	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1974	pSave->cxRow = 0;
1975	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1976
1977	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1978	pSave->cyImage = 0;
1979	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1980	Assert(pSave->cyImage == 0);
1981
1982	pSave->fSwapBytes = GL_FALSE;
1983	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1984	Assert(pSave->fSwapBytes == GL_FALSE);
1985
1986	pSave->fLsbFirst = GL_FALSE;
1987	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1988	Assert(pSave->fLsbFirst == GL_FALSE);
1989
1990	pSave->cSkipRows = 0;
1991	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1992	Assert(pSave->cSkipRows == 0);
1993
1994	pSave->cSkipPixels = 0;
1995	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1996	Assert(pSave->cSkipPixels == 0);
1997
1998	pSave->cSkipImages = 0;
1999	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
2000	Assert(pSave->cSkipImages == 0);
2001
2002	VMSVGA3D_CLEAR_GL_ERRORS();
2003	#endif
2004
2005	/*
2006	* Setup unpack.
2007	*
2008	* Note! We use 1 as alignment here because we currently don't do any
2009	* aligning of line pitches anywhere.
2010	*/
2011	NOREF(pSurface);
2012	if (pSave->iAlignment != 1)
2013	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
2014	if (pSave->cxRow != 0)
2015	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
2016	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2017	if (pSave->cyImage != 0)
2018	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
2019	if (pSave->fSwapBytes != 0)
2020	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2021	if (pSave->fLsbFirst != 0)
2022	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
2023	if (pSave->cSkipRows != 0)
2024	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
2025	if (pSave->cSkipPixels != 0)
2026	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
2027	if (pSave->cSkipImages != 0)
2028	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
2029	#endif
2030	}
2031
2032
2033	/**
2034	* Restores texture unpacking parameters.
2035	*
2036	* @param pState The VMSVGA3D state structure.
2037	* @param pContext The active context.
2038	* @param pSurface The surface.
2039	* @param pSave Where stuff was saved.
2040	*/
2041	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2042	PCVMSVGAPACKPARAMS pSave)
2043	{
2044	RT_NOREF(pState, pSurface);
2045
2046	if (pSave->iAlignment != 1)
2047	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2048	if (pSave->cxRow != 0)
2049	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2050	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2051	if (pSave->cyImage != 0)
2052	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2053	if (pSave->fSwapBytes != 0)
2054	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2055	if (pSave->fLsbFirst != 0)
2056	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2057	if (pSave->cSkipRows != 0)
2058	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2059	if (pSave->cSkipPixels != 0)
2060	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2061	if (pSave->cSkipImages != 0)
2062	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2063	#endif
2064	}
2065
2066
2067	/**
2068	* Create D3D/OpenGL texture object for the specified surface.
2069	*
2070	* Surfaces are created when needed.
2071	*
2072	* @param pState The VMSVGA3d state.
2073	* @param pContext The context.
2074	* @param idAssociatedContext Probably the same as pContext->id.
2075	* @param pSurface The surface to create the texture for.
2076	*/
2077	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2078	PVMSVGA3DSURFACE pSurface)
2079	{
2080	RT_NOREF(idAssociatedContext);
2081	GLint activeTexture = 0;
2082	uint32_t idPrevCtx = pState->idActiveContext;
2083	pContext = &pState->SharedCtx;
2084	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2085
2086	glGenTextures(1, &pSurface->oglId.texture);
2087	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2088	/** @todo Set the mip map generation filter settings. */
2089
2090	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2092
2093	/* Must bind texture to the current context in order to change it. */
2094	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2095	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2096
2097	/* Set the unpacking parameters. */
2098	VMSVGAPACKPARAMS SavedParams;
2099	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2100
2101	/* Set the mipmap base and max level paramters. */
2102	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2103	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2104	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2105	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2106
2107	if (pSurface->fDirty)
2108	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2109
2110	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2111	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2112	{
2113	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2114	exposing random host memory to the guest and helps a with the fedora 21 surface
2115	corruption issues (launchpad, background, search field, login). */
2116	if (pSurface->pMipmapLevels[i].fDirty)
2117	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2118
2119	glTexImage2D(GL_TEXTURE_2D,
2120	i,
2121	pSurface->internalFormatGL,
2122	pSurface->pMipmapLevels[i].mipmapSize.width,
2123	pSurface->pMipmapLevels[i].mipmapSize.height,
2124	0,
2125	pSurface->formatGL,
2126	pSurface->typeGL,
2127	pSurface->pMipmapLevels[i].pSurfaceData);
2128
2129	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2130
2131	pSurface->pMipmapLevels[i].fDirty = false;
2132	}
2133	pSurface->fDirty = false;
2134
2135	/* Restore unpacking parameters. */
2136	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2137
2138	/* Restore the old active texture. */
2139	glBindTexture(GL_TEXTURE_2D, activeTexture);
2140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2141
2142	pSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2143
2144	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2145	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2146	return VINF_SUCCESS;
2147	}
2148
2149
2150	/**
2151	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2152	*
2153	* @returns VBox status code.
2154	* @param pThis The VGA device instance.
2155	* @param pState The VMSVGA3d state.
2156	* @param pDstSurface The destination host surface.
2157	* @param uDstFace The destination face (valid).
2158	* @param uDstMipmap The destination mipmap level (valid).
2159	* @param pDstBox The destination box.
2160	* @param pSrcSurface The source host surface.
2161	* @param uSrcFace The destination face (valid).
2162	* @param uSrcMipmap The source mimap level (valid).
2163	* @param pSrcBox The source box.
2164	* @param enmMode The strecht blt mode .
2165	* @param pContext The VMSVGA3d context (already current for OGL).
2166	*/
2167	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2168	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstFace, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2169	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcFace, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2170	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2171	{
2172	RT_NOREF(pThis);
2173	RT_NOREF2(uDstFace, uSrcFace); /// @todo
2174
2175	/* Activate the read and draw framebuffer objects. */
2176	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2177	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2178	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2179	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2180
2181	/* Bind the source and destination objects to the right place. */
2182	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2183	pSrcSurface->oglId.texture, uSrcMipmap);
2184	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2185	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2186	pDstSurface->oglId.texture, uDstMipmap);
2187	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2188
2189	Log(("src conv. (%d,%d)(%d,%d); dest conv (%d,%d)(%d,%d)\n", pSrcBox->x, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h),
2190	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2191	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2192
2193	pState->ext.glBlitFramebuffer(pSrcBox->x,
2194	#ifdef MANUAL_FLIP_SURFACE_DATA
2195	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2196	#else
2197	pSrcBox->y,
2198	#endif
2199	pSrcBox->x + pSrcBox->w, /* exclusive. */
2200	#ifdef MANUAL_FLIP_SURFACE_DATA
2201	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2202	#else
2203	pSrcBox->y + pSrcBox->h,
2204	#endif
2205	pDstBox->x,
2206	#ifdef MANUAL_FLIP_SURFACE_DATA
2207	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2208	#else
2209	pDstBox->y,
2210	#endif
2211	pDstBox->x + pDstBox->w, /* exclusive. */
2212	#ifdef MANUAL_FLIP_SURFACE_DATA
2213	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2214	#else
2215	pDstBox->y + pDstBox->h,
2216	#endif
2217	GL_COLOR_BUFFER_BIT,
2218	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2219	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2220
2221	/* Reset the frame buffer association */
2222	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2223	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2224
2225	return VINF_SUCCESS;
2226	}
2227
2228	/**
2229	* Save texture packing parameters and loads those appropriate for the given
2230	* surface.
2231	*
2232	* @param pState The VMSVGA3D state structure.
2233	* @param pContext The active context.
2234	* @param pSurface The surface.
2235	* @param pSave Where to save stuff.
2236	*/
2237	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2238	PVMSVGAPACKPARAMS pSave)
2239	{
2240	RT_NOREF(pState);
2241	/*
2242	* Save (ignore errors, setting the defaults we want and avoids restore).
2243	*/
2244	pSave->iAlignment = 1;
2245	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2246	pSave->cxRow = 0;
2247	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2248
2249	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2250	pSave->cyImage = 0;
2251	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2252	Assert(pSave->cyImage == 0);
2253
2254	pSave->fSwapBytes = GL_FALSE;
2255	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2256	Assert(pSave->fSwapBytes == GL_FALSE);
2257
2258	pSave->fLsbFirst = GL_FALSE;
2259	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2260	Assert(pSave->fLsbFirst == GL_FALSE);
2261
2262	pSave->cSkipRows = 0;
2263	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2264	Assert(pSave->cSkipRows == 0);
2265
2266	pSave->cSkipPixels = 0;
2267	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2268	Assert(pSave->cSkipPixels == 0);
2269
2270	pSave->cSkipImages = 0;
2271	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2272	Assert(pSave->cSkipImages == 0);
2273
2274	VMSVGA3D_CLEAR_GL_ERRORS();
2275	#endif
2276
2277	/*
2278	* Setup unpack.
2279	*
2280	* Note! We use 1 as alignment here because we currently don't do any
2281	* aligning of line pitches anywhere.
2282	*/
2283	NOREF(pSurface);
2284	if (pSave->iAlignment != 1)
2285	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2286	if (pSave->cxRow != 0)
2287	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2288	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2289	if (pSave->cyImage != 0)
2290	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2291	if (pSave->fSwapBytes != 0)
2292	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2293	if (pSave->fLsbFirst != 0)
2294	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2295	if (pSave->cSkipRows != 0)
2296	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2297	if (pSave->cSkipPixels != 0)
2298	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2299	if (pSave->cSkipImages != 0)
2300	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2301	#endif
2302	}
2303
2304
2305	/**
2306	* Restores texture packing parameters.
2307	*
2308	* @param pState The VMSVGA3D state structure.
2309	* @param pContext The active context.
2310	* @param pSurface The surface.
2311	* @param pSave Where stuff was saved.
2312	*/
2313	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2314	PCVMSVGAPACKPARAMS pSave)
2315	{
2316	RT_NOREF(pState, pSurface);
2317	if (pSave->iAlignment != 1)
2318	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2319	if (pSave->cxRow != 0)
2320	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2321	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2322	if (pSave->cyImage != 0)
2323	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2324	if (pSave->fSwapBytes != 0)
2325	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2326	if (pSave->fLsbFirst != 0)
2327	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2328	if (pSave->cSkipRows != 0)
2329	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2330	if (pSave->cSkipPixels != 0)
2331	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2332	if (pSave->cSkipImages != 0)
2333	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2334	#endif
2335	}
2336
2337
2338	/**
2339	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2340	*
2341	* @returns Failure status code or @a rc.
2342	* @param pThis The VGA device instance data.
2343	* @param pState The VMSVGA3d state.
2344	* @param pSurface The host surface.
2345	* @param pMipLevel Mipmap level. The caller knows it already.
2346	* @param uHostFace The host face (valid).
2347	* @param uHostMipmap The host mipmap level (valid).
2348	* @param GuestPtr The guest pointer.
2349	* @param cbGuestPitch The guest pitch.
2350	* @param transfer The transfer direction.
2351	* @param pBox The box to copy.
2352	* @param pContext The context (for OpenGL).
2353	* @param rc The current rc for all boxes.
2354	* @param iBox The current box number (for Direct 3D).
2355	*/
2356	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface,
2357	PVMSVGA3DMIPMAPLEVEL pMipLevel, uint32_t uHostFace, uint32_t uHostMipmap,
2358	SVGAGuestPtr GuestPtr, uint32_t cbGuestPitch, SVGA3dTransferType transfer,
2359	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2360	{
2361	RT_NOREF(iBox);
2362	RT_NOREF(uHostFace); /// @todo
2363
2364	switch (pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2365	{
2366	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2367	case SVGA3D_SURFACE_HINT_TEXTURE:
2368	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2369	{
2370	uint32_t cbSurfacePitch;
2371	uint8_t pDoubleBuffer, pBufferStart;
2372	unsigned uDestOffset = 0;
2373
2374	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2375	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2376
2377	if (transfer == SVGA3D_READ_HOST_VRAM)
2378	{
2379	GLint activeTexture;
2380
2381	/* Must bind texture to the current context in order to read it. */
2382	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2383	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2384
2385	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2386	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2387
2388	/* Set row length and alignment of the input data. */
2389	VMSVGAPACKPARAMS SavedParams;
2390	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2391
2392	glGetTexImage(GL_TEXTURE_2D,
2393	uHostMipmap,
2394	pSurface->formatGL,
2395	pSurface->typeGL,
2396	pDoubleBuffer);
2397	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2398
2399	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2400
2401	/* Restore the old active texture. */
2402	glBindTexture(GL_TEXTURE_2D, activeTexture);
2403	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2404
2405	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2406	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2407	<= pMipLevel->cbSurface,
2408	RTMemFree(pDoubleBuffer),
2409	VERR_INTERNAL_ERROR);
2410
2411	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2412
2413	#ifdef MANUAL_FLIP_SURFACE_DATA
2414	pBufferStart = pDoubleBuffer
2415	+ pBox->x * pSurface->cbBlock
2416	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2417	- cbSurfacePitch; /* flip image during copy */
2418	#else
2419	pBufferStart = pDoubleBuffer + uDestOffset;
2420	#endif
2421	}
2422	else
2423	{
2424	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2425	#ifdef MANUAL_FLIP_SURFACE_DATA
2426	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2427	#else
2428	pBufferStart = pDoubleBuffer;
2429	#endif
2430	}
2431
2432	rc = vmsvgaGMRTransfer(pThis,
2433	transfer,
2434	pBufferStart,
2435	#ifdef MANUAL_FLIP_SURFACE_DATA
2436	-(int32_t)cbSurfacePitch,
2437	#else
2438	(int32_t)cbSurfacePitch,
2439	#endif
2440	GuestPtr,
2441	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch, /// @todo compressed fmts
2442	cbGuestPitch,
2443	pBox->w * pSurface->cbBlock,
2444	pBox->h);
2445	AssertRC(rc);
2446
2447	/* Update the opengl surface data. */
2448	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2449	{
2450	GLint activeTexture = 0;
2451
2452	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2453	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2454
2455	/* Must bind texture to the current context in order to change it. */
2456	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2457	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2458
2459	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2460
2461	/* Set row length and alignment of the input data. */
2462	VMSVGAPACKPARAMS SavedParams;
2463	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2464
2465	glTexSubImage2D(GL_TEXTURE_2D,
2466	uHostMipmap,
2467	pBox->x,
2468	pBox->y,
2469	pBox->w,
2470	pBox->h,
2471	pSurface->formatGL,
2472	pSurface->typeGL,
2473	pDoubleBuffer);
2474
2475	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2476
2477	/* Restore old values. */
2478	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2479
2480	/* Restore the old active texture. */
2481	glBindTexture(GL_TEXTURE_2D, activeTexture);
2482	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2483	}
2484
2485	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2486
2487	/* Free the double buffer. */
2488	RTMemFree(pDoubleBuffer);
2489	break;
2490	}
2491
2492	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2493	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2494	break;
2495
2496	case SVGA3D_SURFACE_HINT_VERTEXBUFFER \| SVGA3D_SURFACE_HINT_INDEXBUFFER:
2497	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2498	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2499	{
2500	Assert(pBox->h == 1);
2501
2502	VMSVGA3D_CLEAR_GL_ERRORS();
2503	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2504	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2505	{
2506	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2507	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2508	if (RT_LIKELY(pbData != NULL))
2509	{
2510	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2511	GLint cbStrictBufSize;
2512	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2513	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2514	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2515	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2516	#endif
2517
2518	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2519	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2520	<= pMipLevel->cbSurface))
2521	{
2522	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n",
2523	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" :
2524	(pSurface->surfaceFlags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_INDEXBUFFER ? "index" : "buffer",
2525	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2526
2527	rc = vmsvgaGMRTransfer(pThis,
2528	transfer,
2529	pbData + offDst,
2530	pMipLevel->cbSurfacePitch,
2531	GuestPtr,
2532	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbGuestPitch,
2533	cbGuestPitch,
2534	pBox->w * pSurface->cbBlock,
2535	pBox->h);
2536	AssertRC(rc);
2537
2538	Log4(("first line:\n%.*Rhxd\n", cbGuestPitch, pbData + offDst));
2539	}
2540	else
2541	{
2542	AssertFailed();
2543	rc = VERR_INTERNAL_ERROR;
2544	}
2545
2546	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2547	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2548	}
2549	else
2550	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2551	}
2552	else
2553	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2554	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2556	break;
2557	}
2558
2559	default:
2560	AssertFailed();
2561	break;
2562	}
2563
2564	return rc;
2565	}
2566
2567
2568	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2569	{
2570	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2571	Log(("vmsvga3dSurfaceBlitToScreen: dest=%d (%d,%d)(%d,%d) surface=%x (face=%d, mipmap=%d) (%d,%d)(%d,%d) cRects=%d\n", dest, destRect.left, destRect.top, destRect.right, destRect.bottom, src.sid, src.face, src.mipmap, srcRect.left, srcRect.top, srcRect.right, srcRect.bottom, cRects));
2572	for (uint32_t i = 0; i < cRects; i++)
2573	{
2574	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2575	}
2576
2577	/** @todo Only screen 0 for now. */
2578	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2579	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2580	/** @todo scaling */
2581	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2582
2583	if (cRects == 0)
2584	{
2585	/* easy case; no clipping */
2586	SVGA3dCopyBox box;
2587	SVGA3dGuestImage dst;
2588
2589	box.x = destRect.left;
2590	box.y = destRect.top;
2591	box.z = 0;
2592	box.w = destRect.right - destRect.left;
2593	box.h = destRect.bottom - destRect.top;
2594	box.d = 1;
2595	box.srcx = srcRect.left;
2596	box.srcy = srcRect.top;
2597	box.srcz = 0;
2598
2599	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2600	dst.ptr.offset = pThis->svga.uScreenOffset;
2601	dst.pitch = pThis->svga.cbScanline;
2602
2603	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2604	AssertRCReturn(rc, rc);
2605
2606	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2607	return VINF_SUCCESS;
2608	}
2609	else
2610	{
2611	SVGA3dGuestImage dst;
2612	SVGA3dCopyBox box;
2613
2614	box.srcz = 0;
2615	box.z = 0;
2616	box.d = 1;
2617
2618	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2619	dst.ptr.offset = pThis->svga.uScreenOffset;
2620	dst.pitch = pThis->svga.cbScanline;
2621
2622	/** @todo merge into one SurfaceDMA call */
2623	for (uint32_t i = 0; i < cRects; i++)
2624	{
2625	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2626	box.srcx = srcRect.left + pRect[i].left;
2627	box.srcy = srcRect.top + pRect[i].top;
2628
2629	box.x = pRect[i].left + destRect.left;
2630	box.y = pRect[i].top + destRect.top;
2631	box.z = 0;
2632	box.w = pRect[i].right - pRect[i].left;
2633	box.h = pRect[i].bottom - pRect[i].top;
2634
2635	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2636	AssertRCReturn(rc, rc);
2637
2638	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2639	}
2640
2641	return VINF_SUCCESS;
2642	}
2643	}
2644
2645	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2646	{
2647	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2648	PVMSVGA3DSURFACE pSurface;
2649	int rc = VINF_SUCCESS;
2650	PVMSVGA3DCONTEXT pContext;
2651	uint32_t cid;
2652	GLint activeTexture = 0;
2653
2654	AssertReturn(pState, VERR_NO_MEMORY);
2655	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2656	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2657
2658	pSurface = pState->papSurfaces[sid];
2659
2660	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2661	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2662	pSurface->autogenFilter = filter;
2663
2664	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2665
2666	cid = SVGA3D_INVALID_ID;
2667	pContext = &pState->SharedCtx;
2668	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2669
2670	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2671	{
2672	/* Unknown surface type; turn it into a texture. */
2673	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->surfaceFlags, pSurface->format));
2674	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2675	AssertRCReturn(rc, rc);
2676	}
2677	else
2678	{
2679	/** @todo new filter */
2680	AssertFailed();
2681	}
2682
2683	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2684	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2685
2686	/* Must bind texture to the current context in order to change it. */
2687	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2688	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2689
2690	/* Generate the mip maps. */
2691	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2692	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2693
2694	/* Restore the old texture. */
2695	glBindTexture(GL_TEXTURE_2D, activeTexture);
2696	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2697
2698	return VINF_SUCCESS;
2699	}
2700
2701	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2702	{
2703	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2704	PVMSVGA3DSURFACE pSurface;
2705	PVMSVGA3DCONTEXT pContext;
2706	uint32_t cid;
2707
2708	AssertReturn(pState, VERR_NO_MEMORY);
2709	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2710	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2711
2712	pSurface = pState->papSurfaces[sid];
2713
2714	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2715	for (uint32_t i=0; i < cRects; i++)
2716	Log(("vmsvga3dCommandPresent: rectangle %d src=(%d,%d) (%d,%d)(%d,%d)\n", i, pRect[i].srcx, pRect[i].srcy, pRect[i].x, pRect[i].y, pRect[i].x + pRect[i].w, pRect[i].y + pRect[i].h));
2717
2718	pContext = &pState->SharedCtx;
2719	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2720	cid = pContext->id;
2721	VMSVGA3D_CLEAR_GL_ERRORS();
2722
2723	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2724	/*
2725	* Source surface different size?
2726	*/
2727	RTRECT2 srcViewPort;
2728	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2729	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2730	{
2731	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2732	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2733
2734	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2735	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2736	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2737	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2738
2739	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2740	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2741	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2742	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2743	}
2744	else
2745	{
2746	srcViewPort.x = pThis->svga.viewport.x;
2747	srcViewPort.y = pThis->svga.viewport.y;
2748	srcViewPort.cx = pThis->svga.viewport.cx;
2749	srcViewPort.cy = pThis->svga.viewport.cy;
2750	}
2751	RTRECT SrcViewPortRect;
2752	SrcViewPortRect.xLeft = srcViewPort.x;
2753	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2754	SrcViewPortRect.yBottom = srcViewPort.y;
2755	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2756	#endif
2757
2758
2759	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2760	/*
2761	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2762	*/
2763	SVGA3dCopyRect rect;
2764	uint32_t oldVShader, oldPShader;
2765	GLint oldTextureId;
2766
2767	if (cRects == 0)
2768	{
2769	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2770	rect.w = pSurface->pMipmapLevels[0].size.width;
2771	rect.h = pSurface->pMipmapLevels[0].size.height;
2772	pRect = &rect;
2773	cRects = 1;
2774	}
2775
2776	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2777
2778	#if 0
2779	glDisable(GL_CULL_FACE);
2780	glDisable(GL_BLEND);
2781	glDisable(GL_ALPHA_TEST);
2782	glDisable(GL_SCISSOR_TEST);
2783	glDisable(GL_STENCIL_TEST);
2784	glEnable(GL_DEPTH_TEST);
2785	glDepthFunc(GL_ALWAYS);
2786	glDepthMask(GL_TRUE);
2787	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2788	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2789	#endif
2790
2791	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2792
2793	oldVShader = pContext->state.shidVertex;
2794	oldPShader = pContext->state.shidPixel;
2795	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2796	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2797
2798	/* Flush shader changes. */
2799	if (pContext->pShaderContext)
2800	ShaderUpdateState(pContext->pShaderContext, 0);
2801
2802	/* Activate the read and draw framebuffer objects. */
2803	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2804	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2805
2806	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2807	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2808	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2809
2810	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2811	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2812
2813	#if 0
2814	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2815	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2816	#endif
2817
2818	/* Reset the transformation matrices. */
2819	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2820	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2821	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2822	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2823	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2824	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2825	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2826	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2827
2828	for (uint32_t i = 0; i < cRects; i++)
2829	{
2830	float left, right, top, bottom; /* Texture coordinates */
2831	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2832
2833	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2834	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2835	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2836	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2837	pRect[i].w = pThis->svga.viewport.cx;
2838	pRect[i].h = pThis->svga.viewport.cy;
2839
2840	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2841	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2842	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2843	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2844	{
2845	/* Intersection is empty; skip */
2846	continue;
2847	}
2848
2849	left = pRect[i].srcx;
2850	right = pRect[i].srcx + pRect[i].w;
2851	top = pRect[i].srcy + pRect[i].h;
2852	bottom = pRect[i].srcy;
2853
2854	left /= pSurface->pMipmapLevels[0].size.width;
2855	right /= pSurface->pMipmapLevels[0].size.width;
2856	top /= pSurface->pMipmapLevels[0].size.height;
2857	bottom /= pSurface->pMipmapLevels[0].size.height;
2858
2859	vertexLeft = pRect[i].x;
2860	vertexRight = pRect[i].x + pRect[i].w;
2861	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2862	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2863
2864	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2865	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2866	Log(("texture (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", pRect[i].srcx, pSurface->pMipmapLevels[0].size.height - (pRect[i].srcy + pRect[i].h), pRect[i].srcx, pSurface->pMipmapLevels[0].size.height - pRect[i].srcy, pRect[i].srcx + pRect[i].w, pSurface->pMipmapLevels[0].size.height - pRect[i].srcy, pRect[i].srcx + pRect[i].w, pSurface->pMipmapLevels[0].size.height - (pRect[i].srcy + pRect[i].h)));
2867
2868	glBegin(GL_QUADS);
2869
2870	/* bottom left */
2871	glTexCoord2f(left, bottom);
2872	glVertex2i(vertexLeft, vertexBottom);
2873
2874	/* top left */
2875	glTexCoord2f(left, top);
2876	glVertex2i(vertexLeft, vertexTop);
2877
2878	/* top right */
2879	glTexCoord2f(right, top);
2880	glVertex2i(vertexRight, vertexTop);
2881
2882	/* bottom right */
2883	glTexCoord2f(right, bottom);
2884	glVertex2i(vertexRight, vertexBottom);
2885
2886	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2887	}
2888
2889	/* Restore old settings. */
2890	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2891	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2892	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2893	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2894
2895	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2896
2897	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2898	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2899	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2900
2901	#else
2902	/*
2903	* glBlitFramebuffer variant.
2904	*/
2905	/* Activate the read and draw framebuffer objects. */
2906	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2907	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2908	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2909	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2910
2911	/* Bind the source objects to the right place. */
2912	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2913	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2914
2915
2916	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2917	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2918	ASMCompilerBarrier(); /* paranoia */
2919	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2920
2921	/* If there are no recangles specified, just grab a screenful. */
2922	SVGA3dCopyRect DummyRect;
2923	if (cRects != 0)
2924	{ /* likely */ }
2925	else
2926	{
2927	/** @todo Find the usecase for this or check what the original device does.
2928	* The original code was doing some scaling based on the surface
2929	* size... */
2930	# ifdef DEBUG_bird
2931	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2932	# endif
2933	DummyRect.x = DummyRect.srcx = 0;
2934	DummyRect.y = DummyRect.srcy = 0;
2935	DummyRect.w = pThis->svga.uWidth;
2936	DummyRect.h = pThis->svga.uHeight;
2937	cRects = 1;
2938	pRect = &DummyRect;
2939	}
2940
2941	/*
2942	* Blit the surface rectangle(s) to the back buffer.
2943	*/
2944	uint32_t const cxSurface = pSurface->pMipmapLevels[0].mipmapSize.width;
2945	uint32_t const cySurface = pSurface->pMipmapLevels[0].mipmapSize.height;
2946	for (uint32_t i = 0; i < cRects; i++)
2947	{
2948	SVGA3dCopyRect ClippedRect = pRect[i];
2949
2950	/*
2951	* Do some sanity checking and limit width and height, all so we
2952	* don't need to think about wrap-arounds below.
2953	*/
2954	if (RT_LIKELY( ClippedRect.w
2955	&& ClippedRect.x < VMSVGA_MAX_X
2956	&& ClippedRect.srcx < VMSVGA_MAX_X
2957	&& ClippedRect.h
2958	&& ClippedRect.y < VMSVGA_MAX_Y
2959	&& ClippedRect.srcy < VMSVGA_MAX_Y
2960	))
2961	{ /* likely */ }
2962	else
2963	continue;
2964
2965	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_X))
2966	{ /* likely */ }
2967	else
2968	ClippedRect.w = VMSVGA_MAX_X;
2969	if (RT_LIKELY(ClippedRect.h < VMSVGA_MAX_Y))
2970	{ /* likely */ }
2971	else
2972	ClippedRect.h = VMSVGA_MAX_Y;
2973
2974
2975	/*
2976	* Source surface clipping (paranoia). Straight forward.
2977	*/
2978	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2979	{ /* likely */ }
2980	else
2981	continue;
2982	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2983	{ /* likely */ }
2984	else
2985	{
2986	AssertFailed(); /* remove if annoying. */
2987	ClippedRect.w = cxSurface - ClippedRect.srcx;
2988	}
2989
2990	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2991	{ /* likely */ }
2992	else
2993	continue;
2994	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2995	{ /* likely */ }
2996	else
2997	{
2998	AssertFailed(); /* remove if annoying. */
2999	ClippedRect.h = cySurface - ClippedRect.srcy;
3000	}
3001
3002	/*
3003	* Destination viewport clipping - real PITA.
3004	*
3005	* We have to take the following into account here:
3006	* - The source image is Y inverted.
3007	* - The destination framebuffer is in world and not window coordinates,
3008	* just like the source surface. This means working in the first quadrant.
3009	* - The viewport is in window coordinate, that is fourth quadrant and
3010	* negated Y values.
3011	* - The destination framebuffer is not scrolled, so we have to blit
3012	* what's visible into the top of the framebuffer.
3013	*
3014	*
3015	* To illustrate:
3016	*
3017	* source destination 0123456789
3018	* 8 ^---------- 8 ^---------- 0 ----------->
3019	* 7 \| \| 7 \| \| 1 \| \|
3020	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
3021	* 5 \| *** \| 5 \| * \| 3 \| * \|
3022	* 4 \| * \| => 4 \| * \| => 4 \| * \|
3023	* 3 \| * \| 3 \| * \| 5 \| * \|
3024	* 2 \| ******* \| 2 \| \| 6 \| \|
3025	* 1 \| \| 1 \| \| 7 \| \|
3026	* 0 -----------> 0 -----------> 8 v----------
3027	* 0123456789 0123456789 Destination window
3028	*
3029	* From the above, it follows that a destination viewport given in
3030	* window coordinates matches the source exactly when srcy = srcx = 0.
3031	*
3032	* Example (Y only):
3033	* ySrc = 0
3034	* yDst = 0
3035	* cyCopy = 9
3036	* cyScreen = cyCopy
3037	* cySurface >= cyCopy
3038	* yViewport = 5
3039	* cyViewport = 2 (i.e. '\| *** \|'
3040	* '\| \|' )
3041	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3042	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3043	*
3044	* We can see from the illustration that the final result should be:
3045	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3046	* DstRect = (0,2) (11, 4)
3047	*
3048	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3049	* easier to follow:
3050	* SrcRect = (0,5) (11, 7)
3051	*
3052	* From the top, Y values only:
3053	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3054	*
3055	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3056	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3057	* Copy.yDst += cyAdjust = 2;
3058	* Copy.ySrc = unchanged;
3059	* Copy.cx -= cyAdjust = 7;
3060	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3061	*
3062	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3063	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3064	* Copy.yDst = unchanged;
3065	* Copy.ySrc += cyAdjust = 5;
3066	* Copy.cx -= cyAdjust = 2;
3067	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3068	*
3069	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3070	* when the view is resized, moved and otherwise messed with,
3071	* the visible part of the framebuffer is actually the bottom
3072	* one. It's easy to adjust for this, just have to adjust the
3073	* destination rectangle such that yBottom is zero.
3074	*/
3075	/* X - no inversion, so kind of simple. */
3076	if (ClippedRect.x >= DstViewport.x)
3077	{
3078	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3079	{ /* typical */ }
3080	else if (ClippedRect.x < DstViewport.xRight)
3081	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3082	else
3083	continue;
3084	}
3085	else
3086	{
3087	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3088	if (cxAdjust < ClippedRect.w)
3089	{
3090	ClippedRect.w -= cxAdjust;
3091	ClippedRect.x += cxAdjust;
3092	ClippedRect.srcx += cxAdjust;
3093	}
3094	else
3095	continue;
3096
3097	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3098	{ /* typical */ }
3099	else
3100	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3101	}
3102
3103	/* Y - complicated, see above. */
3104	if (ClippedRect.y >= DstViewport.yLowWC)
3105	{
3106	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3107	{ /* typical */ }
3108	else if (ClippedRect.y < DstViewport.yHighWC)
3109	{
3110	/* adjustment #2 */
3111	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3112	ClippedRect.srcy += cyAdjust;
3113	ClippedRect.h -= cyAdjust;
3114	}
3115	else
3116	continue;
3117	}
3118	else
3119	{
3120	/* adjustment #1 */
3121	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3122	if (cyAdjust < ClippedRect.h)
3123	{
3124	ClippedRect.y += cyAdjust;
3125	ClippedRect.h -= cyAdjust;
3126	}
3127	else
3128	continue;
3129
3130	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3131	{ /* typical */ }
3132	else
3133	{
3134	/* adjustment #2 */
3135	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3136	ClippedRect.srcy += cyAdjust;
3137	ClippedRect.h -= cyAdjust;
3138	}
3139	}
3140
3141	/* Calc source rectangle with y flipping wrt destination. */
3142	RTRECT SrcRect;
3143	SrcRect.xLeft = ClippedRect.srcx;
3144	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3145	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3146	SrcRect.yTop = ClippedRect.srcy;
3147
3148	/* Calc destination rectangle. */
3149	RTRECT DstRect;
3150	DstRect.xLeft = ClippedRect.x;
3151	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3152	DstRect.yBottom = ClippedRect.y;
3153	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3154
3155	/* Adjust for viewport. */
3156	DstRect.xLeft -= DstViewport.x;
3157	DstRect.xRight -= DstViewport.x;
3158	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3159	DstRect.yTop -= DstRect.yBottom;
3160	DstRect.yBottom = 0;
3161	# else
3162	DstRect.yBottom += DstViewport.y;
3163	DstRect.yTop += DstViewport.y;
3164	# endif
3165
3166	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3167	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3168	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3169	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3170	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3171	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3172	}
3173
3174	#endif
3175
3176	/*
3177	* Flip the front and back buffers.
3178	*/
3179	#ifdef RT_OS_WINDOWS
3180	BOOL fRef = SwapBuffers(pContext->hdc);
3181	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3182	#elif defined(RT_OS_DARWIN)
3183	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3184	#else
3185	/* show the window if not already done */
3186	if (!pContext->fMapped)
3187	{
3188	XMapWindow(pState->display, pContext->window);
3189	pContext->fMapped = true;
3190	}
3191	/* now swap the buffers, i.e. display the rendering result */
3192	glXSwapBuffers(pState->display, pContext->window);
3193	#endif
3194
3195	/*
3196	* Now we can reset the frame buffer association. Doing it earlier means no
3197	* output on darwin.
3198	*/
3199	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3200	return VINF_SUCCESS;
3201	}
3202
3203	#ifdef RT_OS_LINUX
3204	/**
3205	* X11 event handling thread.
3206	*
3207	* @returns VINF_SUCCESS (ignored)
3208	* @param hThreadSelf thread handle
3209	* @param pvUser pointer to pState structure
3210	*/
3211	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3212	{
3213	RT_NOREF(hThreadSelf);
3214	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3215	while (!pState->bTerminate)
3216	{
3217	while (XPending(pState->display) > 0)
3218	{
3219	XEvent event;
3220	XNextEvent(pState->display, &event);
3221
3222	switch (event.type)
3223	{
3224	default:
3225	break;
3226	}
3227	}
3228	/* sleep for 16ms to not burn too many cycles */
3229	RTThreadSleep(16);
3230	}
3231	return VINF_SUCCESS;
3232	}
3233	#endif // RT_OS_LINUX
3234
3235
3236	/**
3237	* Create a new 3d context
3238	*
3239	* @returns VBox status code.
3240	* @param pThis VGA device instance data.
3241	* @param cid Context id
3242	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3243	*/
3244	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3245	{
3246	int rc;
3247	PVMSVGA3DCONTEXT pContext;
3248	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3249
3250	AssertReturn(pState, VERR_NO_MEMORY);
3251	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3252	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3253	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3254	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3255	#endif
3256
3257	Log(("vmsvga3dContextDefine id %x\n", cid));
3258	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3259	if (pState->idTestContext == SVGA_ID_INVALID)
3260	{
3261	pState->idTestContext = 207;
3262	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3263	AssertRCReturn(rc, rc);
3264	}
3265	#endif
3266
3267	if (cid == VMSVGA3D_SHARED_CTX_ID)
3268	pContext = &pState->SharedCtx;
3269	else
3270	{
3271	if (cid >= pState->cContexts)
3272	{
3273	/* Grow the array. */
3274	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3275	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3276	AssertReturn(pvNew, VERR_NO_MEMORY);
3277	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3278	while (pState->cContexts < cNew)
3279	{
3280	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3281	AssertReturn(pContext, VERR_NO_MEMORY);
3282	pContext->id = SVGA3D_INVALID_ID;
3283	pState->papContexts[pState->cContexts++] = pContext;
3284	}
3285	}
3286	/* If one already exists with this id, then destroy it now. */
3287	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3288	vmsvga3dContextDestroy(pThis, cid);
3289
3290	pContext = pState->papContexts[cid];
3291	}
3292
3293	/*
3294	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3295	*/
3296	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3297	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3298	{
3299	pSharedCtx = &pState->SharedCtx;
3300	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3301	{
3302	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3303	AssertLogRelRCReturn(rc, rc);
3304	}
3305	}
3306
3307	/*
3308	* Initialize the context.
3309	*/
3310	memset(pContext, 0, sizeof(*pContext));
3311	pContext->id = cid;
3312	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
3313	pContext->aSidActiveTextures[i] = SVGA3D_INVALID_ID;
3314
3315	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3316	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3317	pContext->idFramebuffer = OPENGL_INVALID_ID;
3318	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3319	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3320
3321	rc = ShaderContextCreate(&pContext->pShaderContext);
3322	AssertRCReturn(rc, rc);
3323
3324	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3325	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3326
3327	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3328
3329	#ifdef RT_OS_WINDOWS
3330	/* Create a context window. */
3331	CREATESTRUCT cs;
3332	cs.lpCreateParams = NULL;
3333	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3334	# ifdef DEBUG_GFX_WINDOW
3335	cs.lpszName = (char *)RTMemAllocZ(256);
3336	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3337	# else
3338	cs.lpszName = NULL;
3339	# endif
3340	cs.lpszClass = 0;
3341	# ifdef DEBUG_GFX_WINDOW
3342	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3343	# else
3344	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3345	# endif
3346	cs.x = 0;
3347	cs.y = 0;
3348	cs.cx = pThis->svga.uWidth;
3349	cs.cy = pThis->svga.uHeight;
3350	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3351	cs.hMenu = NULL;
3352	cs.hInstance = pState->hInstance;
3353
3354	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3355	AssertRCReturn(rc, rc);
3356
3357	pContext->hdc = GetDC(pContext->hwnd);
3358	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3359
3360	PIXELFORMATDESCRIPTOR pfd = {
3361	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3362	1, /* version number */
3363	PFD_DRAW_TO_WINDOW \| /* support window */
3364	PFD_DOUBLEBUFFER \| /* support double buffering */
3365	PFD_SUPPORT_OPENGL, /* support OpenGL */
3366	PFD_TYPE_RGBA, /* RGBA type */
3367	24, /* 24-bit color depth */
3368	0, 0, 0, 0, 0, 0, /* color bits ignored */
3369	8, /* alpha buffer */
3370	0, /* shift bit ignored */
3371	0, /* no accumulation buffer */
3372	0, 0, 0, 0, /* accum bits ignored */
3373	16, /* set depth buffer */
3374	16, /* set stencil buffer */
3375	0, /* no auxiliary buffer */
3376	PFD_MAIN_PLANE, /* main layer */
3377	0, /* reserved */
3378	0, 0, 0 /* layer masks ignored */
3379	};
3380	int pixelFormat;
3381	BOOL ret;
3382
3383	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3384	/** @todo is this really necessary?? */
3385	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3386	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3387
3388	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3389	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3390
3391	pContext->hglrc = wglCreateContext(pContext->hdc);
3392	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3393
3394	if (pSharedCtx)
3395	{
3396	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3397	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3398	}
3399
3400	#elif defined(RT_OS_DARWIN)
3401	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3402
3403	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3404	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3405	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3406	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3407	pThis->svga.uWidth, pThis->svga.uHeight,
3408	pShareContext, pContext->fOtherProfile);
3409
3410	#else
3411	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3412
3413	if (pState->display == NULL)
3414	{
3415	/* get an X display and make sure we have glX 1.3 */
3416	pState->display = XOpenDisplay(0);
3417	Assert(pState->display);
3418	int glxMajor, glxMinor;
3419	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3420	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3421	/* start our X event handling thread */
3422	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3423	if (RT_FAILURE(rc))
3424	{
3425	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3426	return rc;
3427	}
3428	}
3429	int attrib[] =
3430	{
3431	GLX_RGBA,
3432	GLX_RED_SIZE, 1,
3433	GLX_GREEN_SIZE, 1,
3434	GLX_BLUE_SIZE, 1,
3435	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3436	GLX_DOUBLEBUFFER,
3437	None
3438	};
3439	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3440	XSetWindowAttributes swa;
3441	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3442	swa.border_pixel = 0;
3443	swa.background_pixel = 0;
3444	swa.event_mask = StructureNotifyMask \| ExposureMask;
3445	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3446	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3447	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3448	0, vi->depth, InputOutput,
3449	vi->visual, flags, &swa);
3450	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3451	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3452
3453	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3454
3455	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3456	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3457	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3458	#endif
3459
3460	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3461
3462	/* NULL during the first PowerOn call. */
3463	if (pState->ext.glGenFramebuffers)
3464	{
3465	/* Create a framebuffer object for this context. */
3466	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3467	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3468
3469	/* Bind the object to the framebuffer target. */
3470	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3471	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3472
3473	/* Create read and draw framebuffer objects for this context. */
3474	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3475	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3476
3477	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3479
3480	}
3481	#if 0
3482	/** @todo move to shader lib!!! */
3483	/* Clear the screen */
3484	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3485
3486	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3487	glClearIndex(0);
3488	glClearDepth(1);
3489	glClearStencil(0xffff);
3490	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3491	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3492	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3493	if (pState->ext.glProvokingVertex)
3494	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3495	/** @todo move to shader lib!!! */
3496	#endif
3497	return VINF_SUCCESS;
3498	}
3499
3500
3501	/**
3502	* Create a new 3d context
3503	*
3504	* @returns VBox status code.
3505	* @param pThis VGA device instance data.
3506	* @param cid Context id
3507	*/
3508	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3509	{
3510	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3511	}
3512
3513	/**
3514	* Destroys a 3d context.
3515	*
3516	* @returns VBox status code.
3517	* @param pThis VGA device instance data.
3518	* @param pContext The context to destroy.
3519	* @param cid Context id
3520	*/
3521	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3522	{
3523	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3524	AssertReturn(pState, VERR_NO_MEMORY);
3525	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3526	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3527	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3528
3529	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3530
3531	/* Destroy all leftover pixel shaders. */
3532	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3533	{
3534	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3535	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3536	}
3537	if (pContext->paPixelShader)
3538	RTMemFree(pContext->paPixelShader);
3539
3540	/* Destroy all leftover vertex shaders. */
3541	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3542	{
3543	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3544	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3545	}
3546	if (pContext->paVertexShader)
3547	RTMemFree(pContext->paVertexShader);
3548
3549	if (pContext->state.paVertexShaderConst)
3550	RTMemFree(pContext->state.paVertexShaderConst);
3551	if (pContext->state.paPixelShaderConst)
3552	RTMemFree(pContext->state.paPixelShaderConst);
3553
3554	if (pContext->pShaderContext)
3555	{
3556	int rc = ShaderContextDestroy(pContext->pShaderContext);
3557	AssertRC(rc);
3558	}
3559
3560	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3561	{
3562	/* Unbind the object from the framebuffer target. */
3563	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3564	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3565	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3566	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3567
3568	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3569	{
3570	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3571	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3572	}
3573	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3574	{
3575	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3576	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3577	}
3578	}
3579
3580	vmsvga3dOcclusionQueryDelete(pState, pContext);
3581
3582	#ifdef RT_OS_WINDOWS
3583	wglMakeCurrent(pContext->hdc, NULL);
3584	wglDeleteContext(pContext->hglrc);
3585	ReleaseDC(pContext->hwnd, pContext->hdc);
3586
3587	/* Destroy the window we've created. */
3588	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3589	AssertRC(rc);
3590	#elif defined(RT_OS_DARWIN)
3591	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3592	#elif defined(RT_OS_LINUX)
3593	glXMakeCurrent(pState->display, None, NULL);
3594	glXDestroyContext(pState->display, pContext->glxContext);
3595	XDestroyWindow(pState->display, pContext->window);
3596	#endif
3597
3598	memset(pContext, 0, sizeof(*pContext));
3599	pContext->id = SVGA3D_INVALID_ID;
3600
3601	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3602	return VINF_SUCCESS;
3603	}
3604
3605	/**
3606	* Destroy an existing 3d context
3607	*
3608	* @returns VBox status code.
3609	* @param pThis VGA device instance data.
3610	* @param cid Context id
3611	*/
3612	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3613	{
3614	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3615	AssertReturn(pState, VERR_WRONG_ORDER);
3616
3617	/*
3618	* Resolve the context and hand it to the common worker function.
3619	*/
3620	if ( cid < pState->cContexts
3621	&& pState->papContexts[cid]->id == cid)
3622	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3623
3624	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3625	return VINF_SUCCESS;
3626	}
3627
3628	/**
3629	* Worker for vmsvga3dChangeMode that resizes a context.
3630	*
3631	* @param pThis The VGA device instance data.
3632	* @param pState The VMSVGA3d state.
3633	* @param pContext The context.
3634	*/
3635	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3636	{
3637	#ifdef RT_OS_WINDOWS
3638	/* Resize the window. */
3639	CREATESTRUCT cs;
3640	RT_ZERO(cs);
3641	cs.cx = pThis->svga.uWidth;
3642	cs.cy = pThis->svga.uHeight;
3643	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3644	AssertRC(rc);
3645
3646	#elif defined(RT_OS_DARWIN)
3647	RT_NOREF(pState);
3648	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3649
3650	#elif defined(RT_OS_LINUX)
3651	XWindowChanges wc;
3652	wc.width = pThis->svga.uWidth;
3653	wc.height = pThis->svga.uHeight;
3654	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3655	#endif
3656	}
3657
3658	/* Handle resize */
3659	int vmsvga3dChangeMode(PVGASTATE pThis)
3660	{
3661	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3662	AssertReturn(pState, VERR_NO_MEMORY);
3663
3664	/* Resize the shared context too. */
3665	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3666	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3667
3668	/* Resize all active contexts. */
3669	for (uint32_t i = 0; i < pState->cContexts; i++)
3670	{
3671	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3672	if (pContext->id != SVGA3D_INVALID_ID)
3673	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3674	}
3675
3676	return VINF_SUCCESS;
3677	}
3678
3679
3680	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3681	{
3682	PVMSVGA3DCONTEXT pContext;
3683	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3684	AssertReturn(pState, VERR_NO_MEMORY);
3685	bool fModelViewChanged = false;
3686
3687	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3688
3689	if ( cid >= pState->cContexts
3690	\|\| pState->papContexts[cid]->id != cid)
3691	{
3692	Log(("vmsvga3dSetTransform invalid context id!\n"));
3693	return VERR_INVALID_PARAMETER;
3694	}
3695	pContext = pState->papContexts[cid];
3696	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3697
3698	/* Save this matrix for vm state save/restore. */
3699	pContext->state.aTransformState[type].fValid = true;
3700	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3701	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3702
3703	Log(("Matrix [%d %d %d %d]\n", (int)(matrix[0] * 10.0), (int)(matrix[1] * 10.0), (int)(matrix[2] * 10.0), (int)(matrix[3] * 10.0)));
3704	Log((" [%d %d %d %d]\n", (int)(matrix[4] * 10.0), (int)(matrix[5] * 10.0), (int)(matrix[6] * 10.0), (int)(matrix[7] * 10.0)));
3705	Log((" [%d %d %d %d]\n", (int)(matrix[8] * 10.0), (int)(matrix[9] * 10.0), (int)(matrix[10] * 10.0), (int)(matrix[11] * 10.0)));
3706	Log((" [%d %d %d %d]\n", (int)(matrix[12] * 10.0), (int)(matrix[13] * 10.0), (int)(matrix[14] * 10.0), (int)(matrix[15] * 10.0)));
3707
3708	switch (type)
3709	{
3710	case SVGA3D_TRANSFORM_VIEW:
3711	/* View * World = Model View */
3712	glMatrixMode(GL_MODELVIEW);
3713	glLoadMatrixf(matrix);
3714	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3715	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3716	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3717	fModelViewChanged = true;
3718	break;
3719
3720	case SVGA3D_TRANSFORM_PROJECTION:
3721	{
3722	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3723	AssertRCReturn(rc, rc);
3724	break;
3725	}
3726
3727	case SVGA3D_TRANSFORM_TEXTURE0:
3728	glMatrixMode(GL_TEXTURE);
3729	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3730	glLoadMatrixf(matrix);
3731	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3732	break;
3733
3734	case SVGA3D_TRANSFORM_TEXTURE1:
3735	case SVGA3D_TRANSFORM_TEXTURE2:
3736	case SVGA3D_TRANSFORM_TEXTURE3:
3737	case SVGA3D_TRANSFORM_TEXTURE4:
3738	case SVGA3D_TRANSFORM_TEXTURE5:
3739	case SVGA3D_TRANSFORM_TEXTURE6:
3740	case SVGA3D_TRANSFORM_TEXTURE7:
3741	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3742	return VERR_INVALID_PARAMETER;
3743
3744	case SVGA3D_TRANSFORM_WORLD:
3745	/* View * World = Model View */
3746	glMatrixMode(GL_MODELVIEW);
3747	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3748	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3749	else
3750	glLoadIdentity();
3751	glMultMatrixf(matrix);
3752	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3753	fModelViewChanged = true;
3754	break;
3755
3756	case SVGA3D_TRANSFORM_WORLD1:
3757	case SVGA3D_TRANSFORM_WORLD2:
3758	case SVGA3D_TRANSFORM_WORLD3:
3759	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3760	return VERR_INVALID_PARAMETER;
3761
3762	default:
3763	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3764	return VERR_INVALID_PARAMETER;
3765	}
3766
3767	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3768	if (fModelViewChanged)
3769	{
3770	/* Reprogram the clip planes. */
3771	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3772	{
3773	if (pContext->state.aClipPlane[j].fValid == true)
3774	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3775	}
3776
3777	/* Reprogram the light data. */
3778	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3779	{
3780	if (pContext->state.aLightData[j].fValidData == true)
3781	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3782	}
3783	}
3784
3785	return VINF_SUCCESS;
3786	}
3787
3788	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3789	{
3790	PVMSVGA3DCONTEXT pContext;
3791	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3792	AssertReturn(pState, VERR_NO_MEMORY);
3793
3794	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3795
3796	if ( cid >= pState->cContexts
3797	\|\| pState->papContexts[cid]->id != cid)
3798	{
3799	Log(("vmsvga3dSetZRange invalid context id!\n"));
3800	return VERR_INVALID_PARAMETER;
3801	}
3802	pContext = pState->papContexts[cid];
3803	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3804
3805	pContext->state.zRange = zRange;
3806	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3807
3808	if (zRange.min < -1.0)
3809	zRange.min = -1.0;
3810	if (zRange.max > 1.0)
3811	zRange.max = 1.0;
3812
3813	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3814	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3815	return VINF_SUCCESS;
3816	}
3817
3818	/**
3819	* Convert SVGA blend op value to its OpenGL equivalent
3820	*/
3821	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3822	{
3823	switch (blendOp)
3824	{
3825	case SVGA3D_BLENDOP_ZERO:
3826	return GL_ZERO;
3827	case SVGA3D_BLENDOP_ONE:
3828	return GL_ONE;
3829	case SVGA3D_BLENDOP_SRCCOLOR:
3830	return GL_SRC_COLOR;
3831	case SVGA3D_BLENDOP_INVSRCCOLOR:
3832	return GL_ONE_MINUS_SRC_COLOR;
3833	case SVGA3D_BLENDOP_SRCALPHA:
3834	return GL_SRC_ALPHA;
3835	case SVGA3D_BLENDOP_INVSRCALPHA:
3836	return GL_ONE_MINUS_SRC_ALPHA;
3837	case SVGA3D_BLENDOP_DESTALPHA:
3838	return GL_DST_ALPHA;
3839	case SVGA3D_BLENDOP_INVDESTALPHA:
3840	return GL_ONE_MINUS_DST_ALPHA;
3841	case SVGA3D_BLENDOP_DESTCOLOR:
3842	return GL_DST_COLOR;
3843	case SVGA3D_BLENDOP_INVDESTCOLOR:
3844	return GL_ONE_MINUS_DST_COLOR;
3845	case SVGA3D_BLENDOP_SRCALPHASAT:
3846	return GL_SRC_ALPHA_SATURATE;
3847	case SVGA3D_BLENDOP_BLENDFACTOR:
3848	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3849	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3850	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3851	default:
3852	AssertFailed();
3853	return GL_ONE;
3854	}
3855	}
3856
3857	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3858	{
3859	switch (blendEq)
3860	{
3861	case SVGA3D_BLENDEQ_ADD:
3862	return GL_FUNC_ADD;
3863	case SVGA3D_BLENDEQ_SUBTRACT:
3864	return GL_FUNC_SUBTRACT;
3865	case SVGA3D_BLENDEQ_REVSUBTRACT:
3866	return GL_FUNC_REVERSE_SUBTRACT;
3867	case SVGA3D_BLENDEQ_MINIMUM:
3868	return GL_MIN;
3869	case SVGA3D_BLENDEQ_MAXIMUM:
3870	return GL_MAX;
3871	default:
3872	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3873	return GL_FUNC_ADD;
3874	}
3875	}
3876
3877	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3878	{
3879	switch (cmpFunc)
3880	{
3881	case SVGA3D_CMP_NEVER:
3882	return GL_NEVER;
3883	case SVGA3D_CMP_LESS:
3884	return GL_LESS;
3885	case SVGA3D_CMP_EQUAL:
3886	return GL_EQUAL;
3887	case SVGA3D_CMP_LESSEQUAL:
3888	return GL_LEQUAL;
3889	case SVGA3D_CMP_GREATER:
3890	return GL_GREATER;
3891	case SVGA3D_CMP_NOTEQUAL:
3892	return GL_NOTEQUAL;
3893	case SVGA3D_CMP_GREATEREQUAL:
3894	return GL_GEQUAL;
3895	case SVGA3D_CMP_ALWAYS:
3896	return GL_ALWAYS;
3897	default:
3898	AssertFailed();
3899	return GL_LESS;
3900	}
3901	}
3902
3903	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3904	{
3905	switch (stencilOp)
3906	{
3907	case SVGA3D_STENCILOP_KEEP:
3908	return GL_KEEP;
3909	case SVGA3D_STENCILOP_ZERO:
3910	return GL_ZERO;
3911	case SVGA3D_STENCILOP_REPLACE:
3912	return GL_REPLACE;
3913	case SVGA3D_STENCILOP_INCRSAT:
3914	return GL_INCR_WRAP;
3915	case SVGA3D_STENCILOP_DECRSAT:
3916	return GL_DECR_WRAP;
3917	case SVGA3D_STENCILOP_INVERT:
3918	return GL_INVERT;
3919	case SVGA3D_STENCILOP_INCR:
3920	return GL_INCR;
3921	case SVGA3D_STENCILOP_DECR:
3922	return GL_DECR;
3923	default:
3924	AssertFailed();
3925	return GL_KEEP;
3926	}
3927	}
3928
3929	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3930	{
3931	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3932	PVMSVGA3DCONTEXT pContext;
3933	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3934	AssertReturn(pState, VERR_NO_MEMORY);
3935
3936	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3937
3938	if ( cid >= pState->cContexts
3939	\|\| pState->papContexts[cid]->id != cid)
3940	{
3941	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3942	return VERR_INVALID_PARAMETER;
3943	}
3944	pContext = pState->papContexts[cid];
3945	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3946
3947	for (unsigned i = 0; i < cRenderStates; i++)
3948	{
3949	GLenum enableCap = ~(GLenum)0;
3950	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3951	/* Save the render state for vm state saving. */
3952	if (pRenderState[i].state < SVGA3D_RS_MAX)
3953	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3954
3955	switch (pRenderState[i].state)
3956	{
3957	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3958	enableCap = GL_DEPTH_TEST;
3959	val = pRenderState[i].uintValue;
3960	break;
3961
3962	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3963	glDepthMask(!!pRenderState[i].uintValue);
3964	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3965	break;
3966
3967	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3968	enableCap = GL_ALPHA_TEST;
3969	val = pRenderState[i].uintValue;
3970	break;
3971
3972	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3973	enableCap = GL_DITHER;
3974	val = pRenderState[i].uintValue;
3975	break;
3976
3977	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3978	enableCap = GL_FOG;
3979	val = pRenderState[i].uintValue;
3980	break;
3981
3982	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3983	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3984	break;
3985
3986	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3987	enableCap = GL_LIGHTING;
3988	val = pRenderState[i].uintValue;
3989	break;
3990
3991	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3992	/* not applicable */
3993	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3994	break;
3995
3996	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3997	enableCap = GL_POINT_SPRITE_ARB;
3998	val = pRenderState[i].uintValue;
3999	break;
4000
4001	case SVGA3D_RS_POINTSIZE: /* float */
4002	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
4003	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
4004	pRenderState[i].floatValue = pState->caps.flPointSize[0];
4005	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
4006	pRenderState[i].floatValue = pState->caps.flPointSize[1];
4007
4008	glPointSize(pRenderState[i].floatValue);
4009	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4010	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4011	break;
4012
4013	case SVGA3D_RS_POINTSIZEMIN: /* float */
4014	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
4015	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4016	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4017	break;
4018
4019	case SVGA3D_RS_POINTSIZEMAX: /* float */
4020	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
4021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4022	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
4023	break;
4024
4025	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
4026	case SVGA3D_RS_POINTSCALE_A: /* float */
4027	case SVGA3D_RS_POINTSCALE_B: /* float */
4028	case SVGA3D_RS_POINTSCALE_C: /* float */
4029	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
4030	break;
4031
4032	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
4033	{
4034	GLfloat color[4]; /* red, green, blue, alpha */
4035
4036	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4037
4038	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
4039	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4040	break;
4041	}
4042
4043	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
4044	{
4045	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4046	for (uint32_t j = 0; j <= 5; j++)
4047	{
4048	if (pRenderState[i].uintValue & RT_BIT(j))
4049	glEnable(GL_CLIP_PLANE0 + j);
4050	else
4051	glDisable(GL_CLIP_PLANE0 + j);
4052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4053	}
4054	break;
4055	}
4056
4057	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4058	{
4059	GLfloat color[4]; /* red, green, blue, alpha */
4060
4061	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4062
4063	glFogfv(GL_FOG_COLOR, color);
4064	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4065	break;
4066	}
4067
4068	case SVGA3D_RS_FOGSTART: /* float */
4069	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4071	break;
4072
4073	case SVGA3D_RS_FOGEND: /* float */
4074	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4076	break;
4077
4078	case SVGA3D_RS_FOGDENSITY: /* float */
4079	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4081	break;
4082
4083	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4084	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4085	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4086	break;
4087
4088	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4089	{
4090	SVGA3dFogMode mode;
4091	mode.uintValue = pRenderState[i].uintValue;
4092
4093	enableCap = GL_FOG_MODE;
4094	switch (mode.s.function)
4095	{
4096	case SVGA3D_FOGFUNC_EXP:
4097	val = GL_EXP;
4098	break;
4099	case SVGA3D_FOGFUNC_EXP2:
4100	val = GL_EXP2;
4101	break;
4102	case SVGA3D_FOGFUNC_LINEAR:
4103	val = GL_LINEAR;
4104	break;
4105	default:
4106	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4107	break;
4108	}
4109
4110	/** @todo how to switch between vertex and pixel fog modes??? */
4111	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4112	#if 0
4113	/* The fog type determines the render state. */
4114	switch (mode.s.type)
4115	{
4116	case SVGA3D_FOGTYPE_VERTEX:
4117	renderState = D3DRS_FOGVERTEXMODE;
4118	break;
4119	case SVGA3D_FOGTYPE_PIXEL:
4120	renderState = D3DRS_FOGTABLEMODE;
4121	break;
4122	default:
4123	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4124	break;
4125	}
4126	#endif
4127
4128	/* Set the fog base to depth or range. */
4129	switch (mode.s.base)
4130	{
4131	case SVGA3D_FOGBASE_DEPTHBASED:
4132	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4133	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4134	break;
4135	case SVGA3D_FOGBASE_RANGEBASED:
4136	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4138	break;
4139	default:
4140	/* ignore */
4141	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4142	break;
4143	}
4144	break;
4145	}
4146
4147	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4148	{
4149	SVGA3dFillMode mode;
4150
4151	mode.uintValue = pRenderState[i].uintValue;
4152
4153	switch (mode.s.mode)
4154	{
4155	case SVGA3D_FILLMODE_POINT:
4156	val = GL_POINT;
4157	break;
4158	case SVGA3D_FILLMODE_LINE:
4159	val = GL_LINE;
4160	break;
4161	case SVGA3D_FILLMODE_FILL:
4162	val = GL_FILL;
4163	break;
4164	default:
4165	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4166	break;
4167	}
4168	/* @note only front and back faces */
4169	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4170	glPolygonMode(GL_FRONT_AND_BACK, val);
4171	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4172	break;
4173	}
4174
4175	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4176	switch (pRenderState[i].uintValue)
4177	{
4178	case SVGA3D_SHADEMODE_FLAT:
4179	val = GL_FLAT;
4180	break;
4181
4182	case SVGA3D_SHADEMODE_SMOOTH:
4183	val = GL_SMOOTH;
4184	break;
4185
4186	default:
4187	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4188	break;
4189	}
4190
4191	glShadeModel(val);
4192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4193	break;
4194
4195	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4196	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4197	/** @todo */
4198	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4199	/*
4200	renderState = D3DRS_LINEPATTERN;
4201	val = pRenderState[i].uintValue;
4202	*/
4203	break;
4204
4205	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4206	enableCap = GL_LINE_SMOOTH;
4207	val = pRenderState[i].uintValue;
4208	break;
4209
4210	case SVGA3D_RS_LINEWIDTH: /* float */
4211	glLineWidth(pRenderState[i].floatValue);
4212	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4213	break;
4214
4215	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4216	{
4217	/* Refresh the blending state based on the new enable setting. */
4218	SVGA3dRenderState renderstate[2];
4219
4220	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4221	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4222	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4223	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4224
4225	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4226	AssertRCReturn(rc, rc);
4227
4228	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4229	continue; /* ignore if blend is already enabled */
4230	} RT_FALL_THRU();
4231
4232	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4233	enableCap = GL_BLEND;
4234	val = pRenderState[i].uintValue;
4235	break;
4236
4237	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4238	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4239	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4240	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4241	{
4242	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4243	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4244
4245	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4246	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4247	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4248	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4249	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4250	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4251	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4252	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4253
4254	switch (pRenderState[i].state)
4255	{
4256	case SVGA3D_RS_SRCBLEND:
4257	srcRGB = blendop;
4258	break;
4259	case SVGA3D_RS_DSTBLEND:
4260	dstRGB = blendop;
4261	break;
4262	case SVGA3D_RS_SRCBLENDALPHA:
4263	srcAlpha = blendop;
4264	break;
4265	case SVGA3D_RS_DSTBLENDALPHA:
4266	dstAlpha = blendop;
4267	break;
4268	default:
4269	/* not possible; shut up gcc */
4270	AssertFailed();
4271	break;
4272	}
4273
4274	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4275	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4276	else
4277	glBlendFunc(srcRGB, dstRGB);
4278	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4279	break;
4280	}
4281
4282	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4283	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4284	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4285	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4286	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4287	else
4288	{
4289	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4290	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4291	#else
4292	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4293	#endif
4294	}
4295	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4296	break;
4297
4298	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4299	{
4300	GLfloat red, green, blue, alpha;
4301
4302	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4303
4304	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4305	glBlendColor(red, green, blue, alpha);
4306	#else
4307	pState->ext.glBlendColor(red, green, blue, alpha);
4308	#endif
4309	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4310	break;
4311	}
4312
4313	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4314	{
4315	GLenum mode = GL_BACK; /* default for OpenGL */
4316
4317	switch (pRenderState[i].uintValue)
4318	{
4319	case SVGA3D_FACE_NONE:
4320	break;
4321	case SVGA3D_FACE_FRONT:
4322	mode = GL_FRONT;
4323	break;
4324	case SVGA3D_FACE_BACK:
4325	mode = GL_BACK;
4326	break;
4327	case SVGA3D_FACE_FRONT_BACK:
4328	mode = GL_FRONT_AND_BACK;
4329	break;
4330	default:
4331	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4332	break;
4333	}
4334	enableCap = GL_CULL_FACE;
4335	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4336	{
4337	glCullFace(mode);
4338	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4339	val = 1;
4340	}
4341	else
4342	val = 0;
4343	break;
4344	}
4345
4346	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4347	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4348	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4349	break;
4350
4351	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4352	{
4353	GLclampf ref;
4354
4355	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4356	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4357	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4358	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4359	break;
4360	}
4361
4362	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4363	{
4364	GLint func;
4365
4366	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4367	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4368	glAlphaFunc(func, pRenderState[i].floatValue);
4369	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4370	break;
4371	}
4372
4373	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4374	enableCap = GL_STENCIL_TEST;
4375	val = pRenderState[i].uintValue;
4376	break;
4377
4378	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4379	case SVGA3D_RS_STENCILREF: /* uint32_t */
4380	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4381	{
4382	GLint func, ref;
4383	GLuint mask;
4384
4385	glGetIntegerv(GL_STENCIL_FUNC, &func);
4386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4387	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4388	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4389	glGetIntegerv(GL_STENCIL_REF, &ref);
4390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4391
4392	switch (pRenderState[i].state)
4393	{
4394	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4395	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4396	break;
4397
4398	case SVGA3D_RS_STENCILREF: /* uint32_t */
4399	ref = pRenderState[i].uintValue;
4400	break;
4401
4402	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4403	mask = pRenderState[i].uintValue;
4404	break;
4405
4406	default:
4407	/* not possible; shut up gcc */
4408	AssertFailed();
4409	break;
4410	}
4411
4412	glStencilFunc(func, ref, mask);
4413	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4414	break;
4415	}
4416
4417	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4418	glStencilMask(pRenderState[i].uintValue);
4419	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4420	break;
4421
4422	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4423	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4424	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4425	{
4426	GLint sfail, dpfail, dppass;
4427	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4428
4429	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4431	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4432	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4433	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4435
4436	switch (pRenderState[i].state)
4437	{
4438	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4439	sfail = stencilop;
4440	break;
4441	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4442	dpfail = stencilop;
4443	break;
4444	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4445	dppass = stencilop;
4446	break;
4447	default:
4448	/* not possible; shut up gcc */
4449	AssertFailed();
4450	break;
4451	}
4452	glStencilOp(sfail, dpfail, dppass);
4453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4454	break;
4455	}
4456
4457	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4458	/* @note GL_EXT_stencil_two_side required! */
4459	if (pState->ext.fEXT_stencil_two_side)
4460	{
4461	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4462	val = pRenderState[i].uintValue;
4463	}
4464	else
4465	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4466	break;
4467
4468	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4469	{
4470	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4471	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4472	*/
4473	GLint ref;
4474	GLuint mask;
4475
4476	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4477	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4478	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4479	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4480
4481	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4483	break;
4484	}
4485
4486	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4487	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4488	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4489	{
4490	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4491	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4492	*/
4493	GLint sfail, dpfail, dppass;
4494	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4495
4496	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4497	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4498	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4500	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4501	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4502
4503	switch (pRenderState[i].state)
4504	{
4505	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4506	sfail = stencilop;
4507	break;
4508	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4509	dpfail = stencilop;
4510	break;
4511	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4512	dppass = stencilop;
4513	break;
4514	default:
4515	/* not possible; shut up gcc */
4516	AssertFailed();
4517	break;
4518	}
4519	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4520	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4521	break;
4522	}
4523
4524	case SVGA3D_RS_ZBIAS: /* float */
4525	/** @todo unknown meaning; depth bias is not identical
4526	renderState = D3DRS_DEPTHBIAS;
4527	val = pRenderState[i].uintValue;
4528	*/
4529	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4530	break;
4531
4532	case SVGA3D_RS_DEPTHBIAS: /* float */
4533	{
4534	GLfloat factor;
4535
4536	/** @todo not sure if the d3d & ogl definitions are identical. */
4537
4538	/* Do not change the factor part. */
4539	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4540	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4541
4542	glPolygonOffset(factor, pRenderState[i].floatValue);
4543	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4544	break;
4545	}
4546
4547	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4548	{
4549	GLfloat units;
4550
4551	/** @todo not sure if the d3d & ogl definitions are identical. */
4552
4553	/* Do not change the factor part. */
4554	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4555	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4556
4557	glPolygonOffset(pRenderState[i].floatValue, units);
4558	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4559	break;
4560	}
4561
4562	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4563	{
4564	GLboolean red, green, blue, alpha;
4565	SVGA3dColorMask mask;
4566
4567	mask.uintValue = pRenderState[i].uintValue;
4568
4569	red = mask.s.red;
4570	green = mask.s.green;
4571	blue = mask.s.blue;
4572	alpha = mask.s.alpha;
4573
4574	glColorMask(red, green, blue, alpha);
4575	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4576	break;
4577	}
4578
4579	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4580	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4581	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4582	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4583	break;
4584
4585	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4586	enableCap = GL_SCISSOR_TEST;
4587	val = pRenderState[i].uintValue;
4588	break;
4589
4590	#if 0
4591	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4592	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4593	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4594	val = pRenderState[i].uintValue;
4595	break;
4596
4597	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4598	renderState = D3DRS_SPECULARMATERIALSOURCE;
4599	val = pRenderState[i].uintValue;
4600	break;
4601
4602	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4603	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4604	val = pRenderState[i].uintValue;
4605	break;
4606
4607	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4608	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4609	val = pRenderState[i].uintValue;
4610	break;
4611	#endif
4612
4613	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4614	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4615	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4616	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4617	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4618	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4619	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4620	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4621	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4622	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4623	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4624	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4625	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4626	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4627	break;
4628
4629	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4630	case SVGA3D_RS_TWEENFACTOR: /* float */
4631	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4632	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4633	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4634	break;
4635
4636	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4637	enableCap = GL_MULTISAMPLE;
4638	val = pRenderState[i].uintValue;
4639	break;
4640
4641	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4642	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4643	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4644	break;
4645
4646	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4647	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4648	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4649	/*
4650	renderState = D3DRS_COORDINATETYPE;
4651	val = pRenderState[i].uintValue;
4652	*/
4653	break;
4654
4655	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4656	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4657	/* Invert the selected mode because of y-inversion (?) */
4658	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4659	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4660	break;
4661
4662	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4663	//AssertFailed();
4664	/*
4665	D3DRS_SRGBWRITEENABLE ??
4666	renderState = D3DRS_OUTPUTGAMMA;
4667	val = pRenderState[i].uintValue;
4668	*/
4669	break;
4670
4671	#if 0
4672
4673	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4674	//AssertFailed();
4675	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4676	val = pRenderState[i].uintValue;
4677	break;
4678
4679	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4680	renderState = D3DRS_TEXTUREFACTOR;
4681	val = pRenderState[i].uintValue;
4682	break;
4683
4684	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4685	renderState = D3DRS_LOCALVIEWER;
4686	val = pRenderState[i].uintValue;
4687	break;
4688
4689	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4690	AssertFailed();
4691	/*
4692	renderState = D3DRS_ZVISIBLE;
4693	val = pRenderState[i].uintValue;
4694	*/
4695	break;
4696
4697	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4698	renderState = D3DRS_CLIPPING;
4699	val = pRenderState[i].uintValue;
4700	break;
4701
4702	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4703	glTexParameter GL_TEXTURE_WRAP_S
4704	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4705	renderState = D3DRS_WRAP0;
4706	val = pRenderState[i].uintValue;
4707	break;
4708
4709	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4710	glTexParameter GL_TEXTURE_WRAP_T
4711	renderState = D3DRS_WRAP1;
4712	val = pRenderState[i].uintValue;
4713	break;
4714
4715	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4716	glTexParameter GL_TEXTURE_WRAP_R
4717	renderState = D3DRS_WRAP2;
4718	val = pRenderState[i].uintValue;
4719	break;
4720
4721
4722	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4723	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4724	val = pRenderState[i].uintValue;
4725	break;
4726
4727
4728	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4729	renderState = D3DRS_BLENDOPALPHA;
4730	val = pRenderState[i].uintValue;
4731	break;
4732
4733	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4734	AssertFailed();
4735	/*
4736	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4737	val = pRenderState[i].uintValue;
4738	*/
4739	break;
4740
4741	#endif
4742	default:
4743	AssertFailed();
4744	break;
4745	}
4746
4747	if (enableCap != ~(GLenum)0)
4748	{
4749	if (val)
4750	glEnable(enableCap);
4751	else
4752	glDisable(enableCap);
4753	}
4754	}
4755
4756	return VINF_SUCCESS;
4757	}
4758
4759	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4760	{
4761	PVMSVGA3DCONTEXT pContext;
4762	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4763	PVMSVGA3DSURFACE pRenderTarget;
4764
4765	AssertReturn(pState, VERR_NO_MEMORY);
4766	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4767	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4768
4769	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4770
4771	if ( cid >= pState->cContexts
4772	\|\| pState->papContexts[cid]->id != cid)
4773	{
4774	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4775	return VERR_INVALID_PARAMETER;
4776	}
4777	pContext = pState->papContexts[cid];
4778	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4779
4780	/* Save for vm state save/restore. */
4781	pContext->state.aRenderTargets[type] = target.sid;
4782
4783	if (target.sid == SVGA3D_INVALID_ID)
4784	{
4785	/* Disable render target. */
4786	switch (type)
4787	{
4788	case SVGA3D_RT_DEPTH:
4789	case SVGA3D_RT_STENCIL:
4790	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4791	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4792	break;
4793
4794	case SVGA3D_RT_COLOR0:
4795	case SVGA3D_RT_COLOR1:
4796	case SVGA3D_RT_COLOR2:
4797	case SVGA3D_RT_COLOR3:
4798	case SVGA3D_RT_COLOR4:
4799	case SVGA3D_RT_COLOR5:
4800	case SVGA3D_RT_COLOR6:
4801	case SVGA3D_RT_COLOR7:
4802	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4803	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4804	break;
4805
4806	default:
4807	AssertFailedReturn(VERR_INVALID_PARAMETER);
4808	}
4809	return VINF_SUCCESS;
4810	}
4811
4812	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4813	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4814	pRenderTarget = pState->papSurfaces[target.sid];
4815
4816	switch (type)
4817	{
4818	case SVGA3D_RT_DEPTH:
4819	case SVGA3D_RT_STENCIL:
4820	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4821	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4822	{
4823	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->surfaceFlags, pRenderTarget->internalFormatGL));
4824	pContext = &pState->SharedCtx;
4825	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4826
4827	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4828	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4829
4830	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4831	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4832
4833	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4834	pRenderTarget->internalFormatGL,
4835	pRenderTarget->pMipmapLevels[0].mipmapSize.width,
4836	pRenderTarget->pMipmapLevels[0].mipmapSize.height);
4837	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4838
4839	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4840	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4841
4842	pContext = pState->papContexts[cid];
4843	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4844	pRenderTarget->idWeakContextAssociation = cid;
4845	}
4846
4847	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4848	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4849	Assert(!pRenderTarget->fDirty);
4850	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4851
4852	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4853
4854	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4855	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4856	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4857	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4858	break;
4859
4860	case SVGA3D_RT_COLOR0:
4861	case SVGA3D_RT_COLOR1:
4862	case SVGA3D_RT_COLOR2:
4863	case SVGA3D_RT_COLOR3:
4864	case SVGA3D_RT_COLOR4:
4865	case SVGA3D_RT_COLOR5:
4866	case SVGA3D_RT_COLOR6:
4867	case SVGA3D_RT_COLOR7:
4868	{
4869	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4870	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4871	{
4872	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));
4873	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4874	AssertRCReturn(rc, rc);
4875	}
4876
4877	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4878	Assert(!pRenderTarget->fDirty);
4879
4880	pRenderTarget->surfaceFlags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4881
4882	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4883	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4884
4885	#ifdef DEBUG
4886	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4887	if (status != GL_FRAMEBUFFER_COMPLETE)
4888	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4889	#endif
4890	/** @todo use glDrawBuffers too? */
4891	break;
4892	}
4893
4894	default:
4895	AssertFailedReturn(VERR_INVALID_PARAMETER);
4896	}
4897
4898	return VINF_SUCCESS;
4899	}
4900
4901	#if 0
4902	/**
4903	* Convert SVGA texture combiner value to its D3D equivalent
4904	*/
4905	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4906	{
4907	switch (value)
4908	{
4909	case SVGA3D_TC_DISABLE:
4910	return D3DTOP_DISABLE;
4911	case SVGA3D_TC_SELECTARG1:
4912	return D3DTOP_SELECTARG1;
4913	case SVGA3D_TC_SELECTARG2:
4914	return D3DTOP_SELECTARG2;
4915	case SVGA3D_TC_MODULATE:
4916	return D3DTOP_MODULATE;
4917	case SVGA3D_TC_ADD:
4918	return D3DTOP_ADD;
4919	case SVGA3D_TC_ADDSIGNED:
4920	return D3DTOP_ADDSIGNED;
4921	case SVGA3D_TC_SUBTRACT:
4922	return D3DTOP_SUBTRACT;
4923	case SVGA3D_TC_BLENDTEXTUREALPHA:
4924	return D3DTOP_BLENDTEXTUREALPHA;
4925	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4926	return D3DTOP_BLENDDIFFUSEALPHA;
4927	case SVGA3D_TC_BLENDCURRENTALPHA:
4928	return D3DTOP_BLENDCURRENTALPHA;
4929	case SVGA3D_TC_BLENDFACTORALPHA:
4930	return D3DTOP_BLENDFACTORALPHA;
4931	case SVGA3D_TC_MODULATE2X:
4932	return D3DTOP_MODULATE2X;
4933	case SVGA3D_TC_MODULATE4X:
4934	return D3DTOP_MODULATE4X;
4935	case SVGA3D_TC_DSDT:
4936	AssertFailed(); /** @todo ??? */
4937	return D3DTOP_DISABLE;
4938	case SVGA3D_TC_DOTPRODUCT3:
4939	return D3DTOP_DOTPRODUCT3;
4940	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4941	return D3DTOP_BLENDTEXTUREALPHAPM;
4942	case SVGA3D_TC_ADDSIGNED2X:
4943	return D3DTOP_ADDSIGNED2X;
4944	case SVGA3D_TC_ADDSMOOTH:
4945	return D3DTOP_ADDSMOOTH;
4946	case SVGA3D_TC_PREMODULATE:
4947	return D3DTOP_PREMODULATE;
4948	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4949	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4950	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4951	return D3DTOP_MODULATECOLOR_ADDALPHA;
4952	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4953	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4954	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4955	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4956	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4957	return D3DTOP_BUMPENVMAPLUMINANCE;
4958	case SVGA3D_TC_MULTIPLYADD:
4959	return D3DTOP_MULTIPLYADD;
4960	case SVGA3D_TC_LERP:
4961	return D3DTOP_LERP;
4962	default:
4963	AssertFailed();
4964	return D3DTOP_DISABLE;
4965	}
4966	}
4967
4968	/**
4969	* Convert SVGA texture arg data value to its D3D equivalent
4970	*/
4971	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4972	{
4973	switch (value)
4974	{
4975	case SVGA3D_TA_CONSTANT:
4976	return D3DTA_CONSTANT;
4977	case SVGA3D_TA_PREVIOUS:
4978	return D3DTA_CURRENT; /* current = previous */
4979	case SVGA3D_TA_DIFFUSE:
4980	return D3DTA_DIFFUSE;
4981	case SVGA3D_TA_TEXTURE:
4982	return D3DTA_TEXTURE;
4983	case SVGA3D_TA_SPECULAR:
4984	return D3DTA_SPECULAR;
4985	default:
4986	AssertFailed();
4987	return 0;
4988	}
4989	}
4990
4991	/**
4992	* Convert SVGA texture transform flag value to its D3D equivalent
4993	*/
4994	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4995	{
4996	switch (value)
4997	{
4998	case SVGA3D_TEX_TRANSFORM_OFF:
4999	return D3DTTFF_DISABLE;
5000	case SVGA3D_TEX_TRANSFORM_S:
5001	return D3DTTFF_COUNT1; /** @todo correct? */
5002	case SVGA3D_TEX_TRANSFORM_T:
5003	return D3DTTFF_COUNT2; /** @todo correct? */
5004	case SVGA3D_TEX_TRANSFORM_R:
5005	return D3DTTFF_COUNT3; /** @todo correct? */
5006	case SVGA3D_TEX_TRANSFORM_Q:
5007	return D3DTTFF_COUNT4; /** @todo correct? */
5008	case SVGA3D_TEX_PROJECTED:
5009	return D3DTTFF_PROJECTED;
5010	default:
5011	AssertFailed();
5012	return 0;
5013	}
5014	}
5015	#endif
5016
5017	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
5018	{
5019	switch (value)
5020	{
5021	case SVGA3D_TEX_ADDRESS_WRAP:
5022	return GL_REPEAT;
5023	case SVGA3D_TEX_ADDRESS_MIRROR:
5024	return GL_MIRRORED_REPEAT;
5025	case SVGA3D_TEX_ADDRESS_CLAMP:
5026	return GL_CLAMP_TO_EDGE;
5027	case SVGA3D_TEX_ADDRESS_BORDER:
5028	return GL_CLAMP_TO_BORDER;
5029	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
5030	AssertFailed();
5031	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
5032
5033	case SVGA3D_TEX_ADDRESS_EDGE:
5034	case SVGA3D_TEX_ADDRESS_INVALID:
5035	default:
5036	AssertFailed();
5037	return GL_REPEAT; /* default */
5038	}
5039	}
5040
5041	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5042	{
5043	switch (value)
5044	{
5045	case SVGA3D_TEX_FILTER_NONE:
5046	case SVGA3D_TEX_FILTER_LINEAR:
5047	return GL_LINEAR;
5048	case SVGA3D_TEX_FILTER_NEAREST:
5049	return GL_NEAREST;
5050	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5051	/** @todo */
5052	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5053	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5054	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5055	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5056	default:
5057	AssertFailed();
5058	return GL_LINEAR; /* default */
5059	}
5060	}
5061
5062	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5063	{
5064	/* flip the red and blue bytes */
5065	uint8_t blue = value & 0xff;
5066	uint8_t red = (value >> 16) & 0xff;
5067	return (value & 0xff00ff00) \| red \| (blue << 16);
5068	}
5069
5070	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5071	{
5072	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5073	GLenum currentStage = ~(GLenum)0;
5074	PVMSVGA3DCONTEXT pContext;
5075	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5076	AssertReturn(pState, VERR_NO_MEMORY);
5077
5078	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5079
5080	if ( cid >= pState->cContexts
5081	\|\| pState->papContexts[cid]->id != cid)
5082	{
5083	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5084	return VERR_INVALID_PARAMETER;
5085	}
5086	pContext = pState->papContexts[cid];
5087	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5088
5089	for (unsigned i = 0; i < cTextureStates; i++)
5090	{
5091	GLenum textureType = ~(GLenum)0;
5092	#if 0
5093	GLenum samplerType = ~(GLenum)0;
5094	#endif
5095
5096	Log(("vmsvga3dSetTextureState: cid=%x stage=%d type=%s (%x) val=%x\n", cid, pTextureState[i].stage, vmsvga3dTextureStateToString(pTextureState[i].name), pTextureState[i].name, pTextureState[i].value));
5097	/* Record the texture state for vm state saving. */
5098	if ( pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates)
5099	&& pTextureState[i].name < RT_ELEMENTS(pContext->state.aTextureStates[0]))
5100	{
5101	pContext->state.aTextureStates[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5102	}
5103
5104	/* Active the right texture unit for subsequent texture state changes. */
5105	if (pTextureState[i].stage != currentStage \|\| i == 0)
5106	{
5107	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5108	* size of aSidActiveTextures and for binding/unbinding we cannot exceed it. */
5109	if (pTextureState[i].stage < RT_ELEMENTS(pContext->state.aTextureStates))
5110	{
5111	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5112	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5113	currentStage = pTextureState[i].stage;
5114	}
5115	else
5116	{
5117	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5118	continue;
5119	}
5120	}
5121
5122	switch (pTextureState[i].name)
5123	{
5124	case SVGA3D_TS_BUMPENVMAT00: /* float */
5125	case SVGA3D_TS_BUMPENVMAT01: /* float */
5126	case SVGA3D_TS_BUMPENVMAT10: /* float */
5127	case SVGA3D_TS_BUMPENVMAT11: /* float */
5128	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5129	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5130	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5131	break;
5132
5133	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5134	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5135	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5136	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5137	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5138	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5139	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5140	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5141	/** @todo not used by MesaGL */
5142	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5143	break;
5144	#if 0
5145
5146	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5147	textureType = D3DTSS_TEXCOORDINDEX;
5148	val = pTextureState[i].value;
5149	break;
5150
5151	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5152	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5153	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5154	break;
5155	#endif
5156
5157	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5158	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5159	{
5160	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5161	currentStage, pTextureState[i].value, pContext->aSidActiveTextures[currentStage]));
5162
5163	pContext->aSidActiveTextures[currentStage] = SVGA3D_INVALID_ID;
5164	/* Unselect the currently associated texture. */
5165	glBindTexture(GL_TEXTURE_2D, 0);
5166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5167	/* Necessary for the fixed pipeline. */
5168	glDisable(GL_TEXTURE_2D);
5169	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5170	}
5171	else
5172	{
5173	uint32_t sid = pTextureState[i].value;
5174
5175	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5176	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5177
5178	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5179
5180	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5181	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].mipmapSize.width,
5182	pSurface->pMipmapLevels[0].mipmapSize.height, pContext->aSidActiveTextures[currentStage]));
5183
5184	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5185	{
5186	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].mipmapSize.width, pSurface->pMipmapLevels[0].mipmapSize.height, pSurface->faces[0].numMipLevels));
5187	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5188	AssertRCReturn(rc, rc);
5189	}
5190
5191	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5192	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5193
5194	/* Necessary for the fixed pipeline. */
5195	glEnable(GL_TEXTURE_2D);
5196	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5197
5198	if (pContext->aSidActiveTextures[currentStage] != sid)
5199	{
5200	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5201	for (uint32_t iStage = 0; iStage < RT_ELEMENTS(pContext->state.aTextureStates); iStage++)
5202	{
5203	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aTextureStates[0]); j++)
5204	{
5205	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureStates[iStage][j];
5206
5207	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5208	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5209	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5210	}
5211	}
5212	}
5213	pContext->aSidActiveTextures[currentStage] = sid;
5214	}
5215	/* Finished; continue with the next one. */
5216	continue;
5217
5218	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5219	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5220	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5221	break;
5222
5223	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5224	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5225	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5226	break;
5227
5228	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5229	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5230	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5231	break;
5232
5233	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5234	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5235	{
5236	uint32_t mipFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MIPFILTER].value;
5237	uint32_t minFilter = pContext->state.aTextureStates[currentStage][SVGA3D_TS_MINFILTER].value;
5238
5239	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5240	textureType = GL_TEXTURE_MIN_FILTER;
5241	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5242	{
5243	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5244	{
5245	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5246	val = GL_NEAREST_MIPMAP_LINEAR;
5247	else
5248	val = GL_NEAREST_MIPMAP_NEAREST;
5249	}
5250	else
5251	{
5252	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5253	val = GL_LINEAR_MIPMAP_LINEAR;
5254	else
5255	val = GL_LINEAR_MIPMAP_NEAREST;
5256	}
5257	}
5258	else
5259	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5260	break;
5261	}
5262
5263	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5264	textureType = GL_TEXTURE_MAG_FILTER;
5265	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5266	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5267	break;
5268
5269	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5270	{
5271	GLfloat color[4]; /* red, green, blue, alpha */
5272
5273	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5274
5275	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5276	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5277	break;
5278	}
5279
5280	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5281	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5282	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5283	break;
5284
5285	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5286	textureType = GL_TEXTURE_BASE_LEVEL;
5287	val = pTextureState[i].value;
5288	break;
5289
5290	#if 0
5291	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5292	samplerType = D3DSAMP_MAXANISOTROPY;
5293	val = pTextureState[i].value; /* Identical?? */
5294	break;
5295
5296	case SVGA3D_TS_GAMMA: /* float */
5297	samplerType = D3DSAMP_SRGBTEXTURE;
5298	/* Boolean in D3D */
5299	if (pTextureState[i].floatValue == 1.0f)
5300	val = FALSE;
5301	else
5302	val = TRUE;
5303	break;
5304	#endif
5305	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5306	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5307	AssertFailed();
5308	break;
5309
5310	default:
5311	//AssertFailed();
5312	break;
5313	}
5314
5315	if (textureType != ~(GLenum)0)
5316	{
5317	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5318	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5319	}
5320	}
5321
5322	return VINF_SUCCESS;
5323	}
5324
5325	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5326	{
5327	PVMSVGA3DCONTEXT pContext;
5328	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5329	AssertReturn(pState, VERR_NO_MEMORY);
5330	GLenum oglFace;
5331
5332	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5333
5334	if ( cid >= pState->cContexts
5335	\|\| pState->papContexts[cid]->id != cid)
5336	{
5337	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5338	return VERR_INVALID_PARAMETER;
5339	}
5340	pContext = pState->papContexts[cid];
5341	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5342
5343	switch (face)
5344	{
5345	case SVGA3D_FACE_NONE:
5346	case SVGA3D_FACE_FRONT:
5347	oglFace = GL_FRONT;
5348	break;
5349
5350	case SVGA3D_FACE_BACK:
5351	oglFace = GL_BACK;
5352	break;
5353
5354	case SVGA3D_FACE_FRONT_BACK:
5355	oglFace = GL_FRONT_AND_BACK;
5356	break;
5357
5358	default:
5359	AssertFailedReturn(VERR_INVALID_PARAMETER);
5360	}
5361
5362	/* Save for vm state save/restore. */
5363	pContext->state.aMaterial[face].fValid = true;
5364	pContext->state.aMaterial[face].material = *pMaterial;
5365	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5366
5367	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5368	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5369	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5370	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5371	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5372	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5373
5374	return VINF_SUCCESS;
5375	}
5376
5377	/** @todo Move into separate library as we are using logic from Wine here. */
5378	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5379	{
5380	PVMSVGA3DCONTEXT pContext;
5381	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5382	AssertReturn(pState, VERR_NO_MEMORY);
5383	float QuadAttenuation;
5384
5385	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5386
5387	if ( cid >= pState->cContexts
5388	\|\| pState->papContexts[cid]->id != cid)
5389	{
5390	Log(("vmsvga3dSetLightData invalid context id!\n"));
5391	return VERR_INVALID_PARAMETER;
5392	}
5393	pContext = pState->papContexts[cid];
5394	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5395
5396	/* Store for vm state save/restore */
5397	if (index < SVGA3D_MAX_LIGHTS)
5398	{
5399	pContext->state.aLightData[index].fValidData = true;
5400	pContext->state.aLightData[index].data = *pData;
5401	}
5402	else
5403	AssertFailed();
5404
5405	if ( pData->attenuation0 < 0.0f
5406	\|\| pData->attenuation1 < 0.0f
5407	\|\| pData->attenuation2 < 0.0f)
5408	{
5409	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5410	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5411	}
5412
5413	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5414	glMatrixMode(GL_MODELVIEW);
5415	glPushMatrix();
5416	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5417
5418	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5419	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5420	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5421
5422	if (pData->range * pData->range >= FLT_MIN)
5423	QuadAttenuation = 1.4f / (pData->range * pData->range);
5424	else
5425	QuadAttenuation = 0.0f;
5426
5427	switch (pData->type)
5428	{
5429	case SVGA3D_LIGHTTYPE_POINT:
5430	{
5431	GLfloat position[4];
5432
5433	position[0] = pData->position[0];
5434	position[1] = pData->position[1];
5435	position[2] = pData->position[2];
5436	position[3] = 1.0f;
5437
5438	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5439	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5440
5441	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5442	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5443
5444	/* Attenuation - Are these right? guessing... */
5445	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5446	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5447
5448	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5449	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5450
5451	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5452	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5453
5454	/** @todo range */
5455	break;
5456	}
5457
5458	case SVGA3D_LIGHTTYPE_SPOT1:
5459	{
5460	GLfloat exponent;
5461	GLfloat position[4];
5462	const GLfloat pi = 4.0f * atanf(1.0f);
5463
5464	position[0] = pData->position[0];
5465	position[1] = pData->position[1];
5466	position[2] = pData->position[2];
5467	position[3] = 1.0f;
5468
5469	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5470	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5471
5472	position[0] = pData->direction[0];
5473	position[1] = pData->direction[1];
5474	position[2] = pData->direction[2];
5475	position[3] = 1.0f;
5476
5477	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5478	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5479
5480	/*
5481	* opengl-ish and d3d-ish spot lights use too different models for the
5482	* light "intensity" as a function of the angle towards the main light direction,
5483	* so we only can approximate very roughly.
5484	* however spot lights are rather rarely used in games (if ever used at all).
5485	* furthermore if still used, probably nobody pays attention to such details.
5486	*/
5487	if (pData->falloff == 0)
5488	{
5489	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5490	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5491	* will always be 1.0 for both of them, and we don't have to care for the
5492	* rest of the rather complex calculation
5493	*/
5494	exponent = 0.0f;
5495	}
5496	else
5497	{
5498	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5499	if (rho < 0.0001f)
5500	rho = 0.0001f;
5501	exponent = -0.3f/log(cos(rho/2));
5502	}
5503	if (exponent > 128.0f)
5504	exponent = 128.0f;
5505
5506	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5507	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5508
5509	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5510	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5511
5512	/* Attenuation - Are these right? guessing... */
5513	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5514	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5515
5516	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5517	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5518
5519	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5520	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5521
5522	/** @todo range */
5523	break;
5524	}
5525
5526	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5527	{
5528	GLfloat position[4];
5529
5530	position[0] = -pData->direction[0];
5531	position[1] = -pData->direction[1];
5532	position[2] = -pData->direction[2];
5533	position[3] = 0.0f;
5534
5535	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5536	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5537
5538	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5539	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5540
5541	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5542	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5543	break;
5544	}
5545
5546	case SVGA3D_LIGHTTYPE_SPOT2:
5547	default:
5548	Log(("Unsupported light type!!\n"));
5549	return VERR_INVALID_PARAMETER;
5550	}
5551
5552	/* Restore the modelview matrix */
5553	glPopMatrix();
5554
5555	return VINF_SUCCESS;
5556	}
5557
5558	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5559	{
5560	PVMSVGA3DCONTEXT pContext;
5561	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5562	AssertReturn(pState, VERR_NO_MEMORY);
5563
5564	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5565
5566	if ( cid >= pState->cContexts
5567	\|\| pState->papContexts[cid]->id != cid)
5568	{
5569	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5570	return VERR_INVALID_PARAMETER;
5571	}
5572	pContext = pState->papContexts[cid];
5573	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5574
5575	/* Store for vm state save/restore */
5576	if (index < SVGA3D_MAX_LIGHTS)
5577	pContext->state.aLightData[index].fEnabled = !!enabled;
5578	else
5579	AssertFailed();
5580
5581	if (enabled)
5582	{
5583	/* Load the default settings if none have been set yet. */
5584	if (!pContext->state.aLightData[index].fValidData)
5585	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5586	glEnable(GL_LIGHT0 + index);
5587	}
5588	else
5589	glDisable(GL_LIGHT0 + index);
5590
5591	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5592	return VINF_SUCCESS;
5593	}
5594
5595	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5596	{
5597	PVMSVGA3DCONTEXT pContext;
5598	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5599	AssertReturn(pState, VERR_NO_MEMORY);
5600
5601	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5602
5603	if ( cid >= pState->cContexts
5604	\|\| pState->papContexts[cid]->id != cid)
5605	{
5606	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5607	return VERR_INVALID_PARAMETER;
5608	}
5609	pContext = pState->papContexts[cid];
5610	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5611
5612	/* Save for vm state save/restore. */
5613	pContext->state.RectViewPort = *pRect;
5614	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5615
5616	/** @todo y-inversion for partial viewport coordinates? */
5617	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5618	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5619
5620	/* Reset the projection matrix as that relies on the viewport setting. */
5621	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5622	{
5623	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5624	}
5625	else
5626	{
5627	float matrix[16];
5628
5629	/* identity matrix if no matrix set. */
5630	memset(matrix, 0, sizeof(matrix));
5631	matrix[0] = 1.0;
5632	matrix[5] = 1.0;
5633	matrix[10] = 1.0;
5634	matrix[15] = 1.0;
5635	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5636	}
5637
5638	return VINF_SUCCESS;
5639	}
5640
5641	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5642	{
5643	PVMSVGA3DCONTEXT pContext;
5644	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5645	AssertReturn(pState, VERR_NO_MEMORY);
5646	double oglPlane[4];
5647
5648	Log(("vmsvga3dSetClipPlane cid=%x %d (%d,%d)(%d,%d)\n", cid, index, (unsigned)(plane[0] * 100.0), (unsigned)(plane[1] * 100.0), (unsigned)(plane[2] * 100.0), (unsigned)(plane[3] * 100.0)));
5649	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5650
5651	if ( cid >= pState->cContexts
5652	\|\| pState->papContexts[cid]->id != cid)
5653	{
5654	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5655	return VERR_INVALID_PARAMETER;
5656	}
5657	pContext = pState->papContexts[cid];
5658	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5659
5660	/* Store for vm state save/restore. */
5661	pContext->state.aClipPlane[index].fValid = true;
5662	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5663
5664	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5665	oglPlane[0] = (double)plane[0];
5666	oglPlane[1] = (double)plane[1];
5667	oglPlane[2] = (double)plane[2];
5668	oglPlane[3] = (double)plane[3];
5669
5670	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5672
5673	return VINF_SUCCESS;
5674	}
5675
5676	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5677	{
5678	PVMSVGA3DCONTEXT pContext;
5679	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5680	AssertReturn(pState, VERR_NO_MEMORY);
5681
5682	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5683
5684	if ( cid >= pState->cContexts
5685	\|\| pState->papContexts[cid]->id != cid)
5686	{
5687	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5688	return VERR_INVALID_PARAMETER;
5689	}
5690	pContext = pState->papContexts[cid];
5691	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5692
5693	/* Store for vm state save/restore. */
5694	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5695	pContext->state.RectScissor = *pRect;
5696
5697	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5698	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5699
5700	return VINF_SUCCESS;
5701	}
5702
5703	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5704	{
5705	/* Convert byte color components to float (0-1.0) */
5706	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5707	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5708	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5709	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5710	}
5711
5712	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5713	uint32_t cRects, SVGA3dRect *pRect)
5714	{
5715	GLbitfield mask = 0;
5716	PVMSVGA3DCONTEXT pContext;
5717	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5718	AssertReturn(pState, VERR_NO_MEMORY);
5719	GLboolean fDepthWriteEnabled = GL_FALSE;
5720
5721	Log(("vmsvga3dCommandClear cid=%x clearFlag=%x color=%x depth=%d stencil=%x cRects=%d\n", cid, clearFlag, color, (uint32_t)(depth * 100.0), stencil, cRects));
5722
5723	if ( cid >= pState->cContexts
5724	\|\| pState->papContexts[cid]->id != cid)
5725	{
5726	Log(("vmsvga3dCommandClear invalid context id!\n"));
5727	return VERR_INVALID_PARAMETER;
5728	}
5729	pContext = pState->papContexts[cid];
5730	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5731
5732	if (clearFlag & SVGA3D_CLEAR_COLOR)
5733	{
5734	GLfloat red, green, blue, alpha;
5735
5736	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5737
5738	/* Set the color clear value. */
5739	glClearColor(red, green, blue, alpha);
5740
5741	mask \|= GL_COLOR_BUFFER_BIT;
5742	}
5743	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5744	{
5745	/** @todo possibly the same problem as with glDepthMask */
5746	glClearStencil(stencil);
5747	mask \|= GL_STENCIL_BUFFER_BIT;
5748	}
5749	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5750	{
5751	glClearDepth((GLdouble)depth);
5752	mask \|= GL_DEPTH_BUFFER_BIT;
5753
5754	/* glClear will not clear the depth buffer if writing is disabled. */
5755	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5756	if (fDepthWriteEnabled == GL_FALSE)
5757	glDepthMask(GL_TRUE);
5758	}
5759
5760	if (cRects)
5761	{
5762	/* Save the current scissor test bit and scissor box. */
5763	glPushAttrib(GL_SCISSOR_BIT);
5764	glEnable(GL_SCISSOR_TEST);
5765	for (unsigned i=0; i < cRects; i++)
5766	{
5767	Log(("vmsvga3dCommandClear: rect %d (%d,%d)(%d,%d)\n", i, pRect[i].x, pRect[i].y, pRect[i].x + pRect[i].w, pRect[i].y + pRect[i].h));
5768	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5769	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5770	glClear(mask);
5771	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5772	}
5773	/* Restore the old scissor test bit and box */
5774	glPopAttrib();
5775	}
5776	else
5777	{
5778	glClear(mask);
5779	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5780	}
5781
5782	/* Restore depth write state. */
5783	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5784	&& fDepthWriteEnabled == GL_FALSE)
5785	glDepthMask(GL_FALSE);
5786
5787	return VINF_SUCCESS;
5788	}
5789
5790	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5791	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5792	{
5793	normalized = GL_FALSE;
5794	switch (identity.type)
5795	{
5796	case SVGA3D_DECLTYPE_FLOAT1:
5797	size = 1;
5798	type = GL_FLOAT;
5799	break;
5800	case SVGA3D_DECLTYPE_FLOAT2:
5801	size = 2;
5802	type = GL_FLOAT;
5803	break;
5804	case SVGA3D_DECLTYPE_FLOAT3:
5805	size = 3;
5806	type = GL_FLOAT;
5807	break;
5808	case SVGA3D_DECLTYPE_FLOAT4:
5809	size = 4;
5810	type = GL_FLOAT;
5811	break;
5812
5813	case SVGA3D_DECLTYPE_D3DCOLOR:
5814	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5815	type = GL_UNSIGNED_BYTE;
5816	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5817	break;
5818
5819	case SVGA3D_DECLTYPE_UBYTE4N:
5820	normalized = GL_TRUE;
5821	RT_FALL_THRU();
5822	case SVGA3D_DECLTYPE_UBYTE4:
5823	size = 4;
5824	type = GL_UNSIGNED_BYTE;
5825	break;
5826
5827	case SVGA3D_DECLTYPE_SHORT2N:
5828	normalized = GL_TRUE;
5829	RT_FALL_THRU();
5830	case SVGA3D_DECLTYPE_SHORT2:
5831	size = 2;
5832	type = GL_SHORT;
5833	break;
5834
5835	case SVGA3D_DECLTYPE_SHORT4N:
5836	normalized = GL_TRUE;
5837	RT_FALL_THRU();
5838	case SVGA3D_DECLTYPE_SHORT4:
5839	size = 4;
5840	type = GL_SHORT;
5841	break;
5842
5843	case SVGA3D_DECLTYPE_USHORT4N:
5844	normalized = GL_TRUE;
5845	size = 4;
5846	type = GL_UNSIGNED_SHORT;
5847	break;
5848
5849	case SVGA3D_DECLTYPE_USHORT2N:
5850	normalized = GL_TRUE;
5851	size = 2;
5852	type = GL_UNSIGNED_SHORT;
5853	break;
5854
5855	case SVGA3D_DECLTYPE_UDEC3:
5856	size = 3;
5857	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5858	break;
5859
5860	case SVGA3D_DECLTYPE_DEC3N:
5861	normalized = true;
5862	size = 3;
5863	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5864	break;
5865
5866	case SVGA3D_DECLTYPE_FLOAT16_2:
5867	size = 2;
5868	type = GL_HALF_FLOAT;
5869	break;
5870	case SVGA3D_DECLTYPE_FLOAT16_4:
5871	size = 4;
5872	type = GL_HALF_FLOAT;
5873	break;
5874	default:
5875	AssertFailedReturn(VERR_INVALID_PARAMETER);
5876	}
5877
5878	//pVertexElement->Method = identity.method;
5879	//pVertexElement->Usage = identity.usage;
5880
5881	return VINF_SUCCESS;
5882	}
5883
5884	/* Convert VMWare primitive type to its OpenGL equivalent. */
5885	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5886	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5887	{
5888	switch (PrimitiveType)
5889	{
5890	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5891	*pMode = GL_TRIANGLES;
5892	pcVertices = cPrimitiveCount 3;
5893	break;
5894	case SVGA3D_PRIMITIVE_POINTLIST:
5895	*pMode = GL_POINTS;
5896	*pcVertices = cPrimitiveCount;
5897	break;
5898	case SVGA3D_PRIMITIVE_LINELIST:
5899	*pMode = GL_LINES;
5900	pcVertices = cPrimitiveCount 2;
5901	break;
5902	case SVGA3D_PRIMITIVE_LINESTRIP:
5903	*pMode = GL_LINE_STRIP;
5904	*pcVertices = cPrimitiveCount + 1;
5905	break;
5906	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5907	*pMode = GL_TRIANGLE_STRIP;
5908	*pcVertices = cPrimitiveCount + 2;
5909	break;
5910	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5911	*pMode = GL_TRIANGLE_FAN;
5912	*pcVertices = cPrimitiveCount + 2;
5913	break;
5914	default:
5915	return VERR_INVALID_PARAMETER;
5916	}
5917	return VINF_SUCCESS;
5918	}
5919
5920	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5921	{
5922	int rc;
5923
5924	/* Reset the view matrix (also takes the world matrix into account). */
5925	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5926	{
5927	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5928	}
5929	else
5930	{
5931	float matrix[16];
5932
5933	/* identity matrix if no matrix set. */
5934	memset(matrix, 0, sizeof(matrix));
5935	matrix[0] = 1.0;
5936	matrix[5] = 1.0;
5937	matrix[10] = 1.0;
5938	matrix[15] = 1.0;
5939	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5940	}
5941
5942	/* Reset the projection matrix. */
5943	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5944	{
5945	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5946	}
5947	else
5948	{
5949	float matrix[16];
5950
5951	/* identity matrix if no matrix set. */
5952	memset(matrix, 0, sizeof(matrix));
5953	matrix[0] = 1.0;
5954	matrix[5] = 1.0;
5955	matrix[10] = 1.0;
5956	matrix[15] = 1.0;
5957	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5958	}
5959	AssertRC(rc);
5960	return rc;
5961	}
5962
5963	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5964	{
5965	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5966	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5967	PVMSVGA3DSURFACE pVertexSurface;
5968
5969	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5970	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5971
5972	pVertexSurface = pState->papSurfaces[sidVertex];
5973	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5974
5975	/* Create and/or bind the vertex buffer. */
5976	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5977	{
5978	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5979	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5980	pContext = &pState->SharedCtx;
5981	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5982
5983	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5984	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5985
5986	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5987	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5988
5989	Assert(pVertexSurface->fDirty);
5990	/** @todo rethink usage dynamic/static */
5991	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5992	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5993
5994	pVertexSurface->pMipmapLevels[0].fDirty = false;
5995	pVertexSurface->fDirty = false;
5996
5997	pVertexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5998
5999	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
6000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6001
6002	pContext = pSavedCtx;
6003	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6004	}
6005
6006	Assert(pVertexSurface->fDirty == false);
6007	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
6008	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6009
6010	/* Setup the vertex declarations. */
6011	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6012	{
6013	GLint size;
6014	GLenum type;
6015	GLboolean normalized;
6016	GLuint index = iVertexDeclBase + iVertex;
6017
6018	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));
6019
6020	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
6021	AssertRCReturn(rc, rc);
6022
6023	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6024	{
6025	/* Use numbered vertex arrays when shaders are active. */
6026	pState->ext.glEnableVertexAttribArray(index);
6027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6028	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
6029	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6031	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
6032	}
6033	else
6034	{
6035	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6036	switch (pVertexDecl[iVertex].identity.usage)
6037	{
6038	case SVGA3D_DECLUSAGE_POSITIONT:
6039	case SVGA3D_DECLUSAGE_POSITION:
6040	{
6041	glEnableClientState(GL_VERTEX_ARRAY);
6042	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6043	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6044	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6046	break;
6047	}
6048	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6049	AssertFailed();
6050	break;
6051	case SVGA3D_DECLUSAGE_BLENDINDICES:
6052	AssertFailed();
6053	break;
6054	case SVGA3D_DECLUSAGE_NORMAL:
6055	glEnableClientState(GL_NORMAL_ARRAY);
6056	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6057	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6058	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6059	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6060	break;
6061	case SVGA3D_DECLUSAGE_PSIZE:
6062	AssertFailed();
6063	break;
6064	case SVGA3D_DECLUSAGE_TEXCOORD:
6065	/* Specify the affected texture unit. */
6066	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6067	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6068	#else
6069	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6070	#endif
6071	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6072	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6073	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6074	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6075	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6076	break;
6077	case SVGA3D_DECLUSAGE_TANGENT:
6078	AssertFailed();
6079	break;
6080	case SVGA3D_DECLUSAGE_BINORMAL:
6081	AssertFailed();
6082	break;
6083	case SVGA3D_DECLUSAGE_TESSFACTOR:
6084	AssertFailed();
6085	break;
6086	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6087	glEnableClientState(GL_COLOR_ARRAY);
6088	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6089	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6090	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6091	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6092	break;
6093	case SVGA3D_DECLUSAGE_FOG:
6094	glEnableClientState(GL_FOG_COORD_ARRAY);
6095	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6096	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6097	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6098	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6099	break;
6100	case SVGA3D_DECLUSAGE_DEPTH:
6101	AssertFailed();
6102	break;
6103	case SVGA3D_DECLUSAGE_SAMPLE:
6104	AssertFailed();
6105	break;
6106	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6107	}
6108	}
6109
6110	#ifdef LOG_ENABLED
6111	if (pVertexDecl[iVertex].array.stride == 0)
6112	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6113	#endif
6114	}
6115
6116	return VINF_SUCCESS;
6117	}
6118
6119	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6120	{
6121	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6122
6123	/* Clean up the vertex declarations. */
6124	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6125	{
6126	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6127	{
6128	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6129	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6130	vmsvga3dResetTransformMatrices(pThis, pContext);
6131	}
6132
6133	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6134	{
6135	/* Use numbered vertex arrays when shaders are active. */
6136	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6137	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6138	}
6139	else
6140	{
6141	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6142	switch (pVertexDecl[iVertex].identity.usage)
6143	{
6144	case SVGA3D_DECLUSAGE_POSITION:
6145	case SVGA3D_DECLUSAGE_POSITIONT:
6146	glDisableClientState(GL_VERTEX_ARRAY);
6147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6148	break;
6149	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6150	break;
6151	case SVGA3D_DECLUSAGE_BLENDINDICES:
6152	break;
6153	case SVGA3D_DECLUSAGE_NORMAL:
6154	glDisableClientState(GL_NORMAL_ARRAY);
6155	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6156	break;
6157	case SVGA3D_DECLUSAGE_PSIZE:
6158	break;
6159	case SVGA3D_DECLUSAGE_TEXCOORD:
6160	/* Specify the affected texture unit. */
6161	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6162	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6163	#else
6164	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6165	#endif
6166	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6167	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6168	break;
6169	case SVGA3D_DECLUSAGE_TANGENT:
6170	break;
6171	case SVGA3D_DECLUSAGE_BINORMAL:
6172	break;
6173	case SVGA3D_DECLUSAGE_TESSFACTOR:
6174	break;
6175	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6176	glDisableClientState(GL_COLOR_ARRAY);
6177	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6178	break;
6179	case SVGA3D_DECLUSAGE_FOG:
6180	glDisableClientState(GL_FOG_COORD_ARRAY);
6181	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6182	break;
6183	case SVGA3D_DECLUSAGE_DEPTH:
6184	break;
6185	case SVGA3D_DECLUSAGE_SAMPLE:
6186	break;
6187	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6188	}
6189	}
6190	}
6191	/* Unbind the vertex buffer after usage. */
6192	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6193	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6194	return VINF_SUCCESS;
6195	}
6196
6197	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6198	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6199	SVGA3dVertexDivisor *pVertexDivisor)
6200	{
6201	RT_NOREF(pVertexDivisor);
6202	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6203	AssertReturn(pState, VERR_INTERNAL_ERROR);
6204	PVMSVGA3DCONTEXT pContext;
6205	int rc = VERR_NOT_IMPLEMENTED;
6206	uint32_t iCurrentVertex;
6207
6208	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6209
6210	/* Caller already check these, but it cannot hurt to check again... */
6211	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6212	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6213	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6214
6215	/** @todo Non-zero cVertexDivisor */
6216	Assert(!cVertexDivisor);
6217
6218	if ( cid >= pState->cContexts
6219	\|\| pState->papContexts[cid]->id != cid)
6220	{
6221	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6222	return VERR_INVALID_PARAMETER;
6223	}
6224	pContext = pState->papContexts[cid];
6225	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6226
6227	/* Check for pretransformed vertex declarations. */
6228	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6229	{
6230	switch (pVertexDecl[iVertex].identity.usage)
6231	{
6232	case SVGA3D_DECLUSAGE_POSITIONT:
6233	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6234	RT_FALL_THRU();
6235	case SVGA3D_DECLUSAGE_POSITION:
6236	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6237	pContext->state.RectViewPort.h,
6238	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6239	break;
6240	default: /* Shut up MSC. */ break;
6241	}
6242	}
6243
6244	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6245	if (pContext->pShaderContext)
6246	{
6247	uint32_t rtHeight = 0;
6248
6249	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0] != SVGA_ID_INVALID)
6250	{
6251	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->state.aRenderTargets[SVGA3D_RT_COLOR0]];
6252	rtHeight = pRenderTarget->pMipmapLevels[0].mipmapSize.height;
6253	}
6254
6255	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6256	}
6257
6258	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6259	iCurrentVertex = 0;
6260	while (iCurrentVertex < numVertexDecls)
6261	{
6262	uint32_t sidVertex = SVGA_ID_INVALID;
6263	uint32_t iVertex;
6264
6265	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6266	{
6267	if ( sidVertex != SVGA_ID_INVALID
6268	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6269	)
6270	break;
6271	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6272	}
6273
6274	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6275	AssertRCReturn(rc, rc);
6276
6277	iCurrentVertex = iVertex;
6278	}
6279
6280	/* Now draw the primitives. */
6281	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6282	{
6283	GLenum modeDraw;
6284	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6285	PVMSVGA3DSURFACE pIndexSurface = NULL;
6286	unsigned cVertices;
6287
6288	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6289	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6290	if (RT_FAILURE(rc))
6291	{
6292	AssertRC(rc);
6293	goto internal_error;
6294	}
6295
6296	if (sidIndex != SVGA3D_INVALID_ID)
6297	{
6298	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6299
6300	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6301	\|\| sidIndex >= pState->cSurfaces
6302	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6303	{
6304	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6305	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6306	rc = VERR_INVALID_PARAMETER;
6307	goto internal_error;
6308	}
6309	pIndexSurface = pState->papSurfaces[sidIndex];
6310	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6311
6312	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6313	{
6314	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6315	pContext = &pState->SharedCtx;
6316	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6317
6318	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6319	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6320
6321	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6322	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6323
6324	Assert(pIndexSurface->fDirty);
6325
6326	/** @todo rethink usage dynamic/static */
6327	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6328	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6329
6330	pIndexSurface->pMipmapLevels[0].fDirty = false;
6331	pIndexSurface->fDirty = false;
6332
6333	pIndexSurface->surfaceFlags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6334
6335	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6336	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6337
6338	pContext = pState->papContexts[cid];
6339	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6340	}
6341	Assert(pIndexSurface->fDirty == false);
6342
6343	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6344	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6345	}
6346
6347	if (!pIndexSurface)
6348	{
6349	/* Render without an index buffer */
6350	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6351	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6352	}
6353	else
6354	{
6355	GLenum indexType;
6356
6357	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6358	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6359
6360	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6361	{
6362	indexType = GL_UNSIGNED_BYTE;
6363	}
6364	else
6365	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6366	{
6367	indexType = GL_UNSIGNED_SHORT;
6368	}
6369	else
6370	{
6371	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6372	indexType = GL_UNSIGNED_INT;
6373	}
6374
6375	/* Render with an index buffer */
6376	Log(("DrawIndexedPrimitive %x cPrimitives=%d cVertices=%d hint.first=%d hint.last=%d index offset=%d primitivecount=%d index width=%d index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pVertexDecl[0].rangeHint.first, pVertexDecl[0].rangeHint.last, pRange[iPrimitive].indexArray.offset, pRange[iPrimitive].primitiveCount, pRange[iPrimitive].indexWidth, pRange[iPrimitive].indexBias));
6377	if (pRange[iPrimitive].indexBias == 0)
6378	glDrawElements(modeDraw,
6379	cVertices,
6380	indexType,
6381	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6382	else
6383	pState->ext.glDrawElementsBaseVertex(modeDraw,
6384	cVertices,
6385	indexType,
6386	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6387	pRange[iPrimitive].indexBias); /* basevertex */
6388
6389	/* Unbind the index buffer after usage. */
6390	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6391	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6392	}
6393	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6394	}
6395
6396	internal_error:
6397
6398	/* Deactivate the vertex declarations. */
6399	iCurrentVertex = 0;
6400	while (iCurrentVertex < numVertexDecls)
6401	{
6402	uint32_t sidVertex = SVGA_ID_INVALID;
6403	uint32_t iVertex;
6404
6405	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6406	{
6407	if ( sidVertex != SVGA_ID_INVALID
6408	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6409	)
6410	break;
6411	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6412	}
6413
6414	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6415	AssertRCReturn(rc, rc);
6416
6417	iCurrentVertex = iVertex;
6418	}
6419	#ifdef DEBUG
6420	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTextures); i++)
6421	{
6422	if (pContext->aSidActiveTextures[i] != SVGA3D_INVALID_ID)
6423	{
6424	GLint activeTexture = 0;
6425	GLint activeTextureUnit = 0;
6426
6427	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6428	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6429	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6430	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6431
6432	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6433	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6434	pState->ext.glActiveTexture(activeTextureUnit);
6435	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6436
6437	# if 0 /* Aren't we checking whether 'activeTexture' on texture unit 'i' matches what we expected? This works if only one unit is active, but if both are it _will_ fail for one of them. */
6438	if (pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6439	{
6440	PVMSVGA3DSURFACE pTexture;
6441	pTexture = pState->papSurfaces[pContext->aSidActiveTextures[activeTextureUnit - GL_TEXTURE0]];
6442
6443	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6444	}
6445	# else
6446	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTextures[i]];
6447	AssertMsg(pTexture->id == pContext->aSidActiveTextures[i], ("%x vs %x\n", pTexture->id, pContext->aSidActiveTextures[i]));
6448	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6449	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6450	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTextures[i]));
6451	# endif
6452	}
6453	}
6454	#endif
6455
6456	#ifdef DEBUG_GFX_WINDOW
6457	if (pContext->state.aRenderTargets[SVGA3D_RT_COLOR0])
6458	{
6459	SVGA3dCopyRect rect;
6460
6461	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6462	rect.w = pContext->state.RectViewPort.w;
6463	rect.h = pContext->state.RectViewPort.h;
6464	vmsvga3dCommandPresent(pThis, pContext->state.aRenderTargets[SVGA3D_RT_COLOR0], 0, NULL);
6465	}
6466	#endif
6467
6468	return rc;
6469	}
6470
6471
6472	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6473	{
6474	PVMSVGA3DCONTEXT pContext;
6475	PVMSVGA3DSHADER pShader;
6476	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6477	AssertReturn(pState, VERR_NO_MEMORY);
6478	int rc;
6479
6480	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6481	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6482
6483	if ( cid >= pState->cContexts
6484	\|\| pState->papContexts[cid]->id != cid)
6485	{
6486	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6487	return VERR_INVALID_PARAMETER;
6488	}
6489	pContext = pState->papContexts[cid];
6490	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6491
6492	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6493	if (type == SVGA3D_SHADERTYPE_VS)
6494	{
6495	if (shid >= pContext->cVertexShaders)
6496	{
6497	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6498	AssertReturn(pvNew, VERR_NO_MEMORY);
6499	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6500	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6501	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6502	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6503	pContext->cVertexShaders = shid + 1;
6504	}
6505	/* If one already exists with this id, then destroy it now. */
6506	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6507	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6508
6509	pShader = &pContext->paVertexShader[shid];
6510	}
6511	else
6512	{
6513	Assert(type == SVGA3D_SHADERTYPE_PS);
6514	if (shid >= pContext->cPixelShaders)
6515	{
6516	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6517	AssertReturn(pvNew, VERR_NO_MEMORY);
6518	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6519	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6520	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6521	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6522	pContext->cPixelShaders = shid + 1;
6523	}
6524	/* If one already exists with this id, then destroy it now. */
6525	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6526	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6527
6528	pShader = &pContext->paPixelShader[shid];
6529	}
6530
6531	memset(pShader, 0, sizeof(*pShader));
6532	pShader->id = shid;
6533	pShader->cid = cid;
6534	pShader->type = type;
6535	pShader->cbData = cbData;
6536	pShader->pShaderProgram = RTMemAllocZ(cbData);
6537	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6538	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6539
6540	#ifdef DUMP_SHADER_DISASSEMBLY
6541	LPD3DXBUFFER pDisassembly;
6542	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6543	if (hr == D3D_OK)
6544	{
6545	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6546	pDisassembly->Release();
6547	}
6548	#endif
6549
6550	switch (type)
6551	{
6552	case SVGA3D_SHADERTYPE_VS:
6553	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6554	break;
6555
6556	case SVGA3D_SHADERTYPE_PS:
6557	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6558	break;
6559
6560	default:
6561	AssertFailedReturn(VERR_INVALID_PARAMETER);
6562	}
6563	if (rc != VINF_SUCCESS)
6564	{
6565	RTMemFree(pShader->pShaderProgram);
6566	memset(pShader, 0, sizeof(*pShader));
6567	pShader->id = SVGA3D_INVALID_ID;
6568	}
6569
6570	return rc;
6571	}
6572
6573	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6574	{
6575	PVMSVGA3DCONTEXT pContext;
6576	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6577	AssertReturn(pState, VERR_NO_MEMORY);
6578	PVMSVGA3DSHADER pShader = NULL;
6579	int rc;
6580
6581	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6582
6583	if ( cid >= pState->cContexts
6584	\|\| pState->papContexts[cid]->id != cid)
6585	{
6586	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6587	return VERR_INVALID_PARAMETER;
6588	}
6589	pContext = pState->papContexts[cid];
6590	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6591
6592	if (type == SVGA3D_SHADERTYPE_VS)
6593	{
6594	if ( shid < pContext->cVertexShaders
6595	&& pContext->paVertexShader[shid].id == shid)
6596	{
6597	pShader = &pContext->paVertexShader[shid];
6598	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6599	AssertRC(rc);
6600	}
6601	}
6602	else
6603	{
6604	Assert(type == SVGA3D_SHADERTYPE_PS);
6605	if ( shid < pContext->cPixelShaders
6606	&& pContext->paPixelShader[shid].id == shid)
6607	{
6608	pShader = &pContext->paPixelShader[shid];
6609	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6610	AssertRC(rc);
6611	}
6612	}
6613
6614	if (pShader)
6615	{
6616	if (pShader->pShaderProgram)
6617	RTMemFree(pShader->pShaderProgram);
6618	memset(pShader, 0, sizeof(*pShader));
6619	pShader->id = SVGA3D_INVALID_ID;
6620	}
6621	else
6622	AssertFailedReturn(VERR_INVALID_PARAMETER);
6623
6624	return VINF_SUCCESS;
6625	}
6626
6627	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6628	{
6629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6630	AssertReturn(pState, VERR_NO_MEMORY);
6631	int rc;
6632
6633	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6634
6635	if ( !pContext
6636	&& cid < pState->cContexts
6637	&& pState->papContexts[cid]->id == cid)
6638	pContext = pState->papContexts[cid];
6639	else if (!pContext)
6640	{
6641	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6642	Log(("vmsvga3dShaderSet invalid context id!\n"));
6643	return VERR_INVALID_PARAMETER;
6644	}
6645	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6646
6647	if (type == SVGA3D_SHADERTYPE_VS)
6648	{
6649	/* Save for vm state save/restore. */
6650	pContext->state.shidVertex = shid;
6651	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6652
6653	if ( shid < pContext->cVertexShaders
6654	&& pContext->paVertexShader[shid].id == shid)
6655	{
6656	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6657	Assert(type == pShader->type);
6658
6659	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6660	AssertRCReturn(rc, rc);
6661	}
6662	else
6663	if (shid == SVGA_ID_INVALID)
6664	{
6665	/* Unselect shader. */
6666	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6667	AssertRCReturn(rc, rc);
6668	}
6669	else
6670	AssertFailedReturn(VERR_INVALID_PARAMETER);
6671	}
6672	else
6673	{
6674	/* Save for vm state save/restore. */
6675	pContext->state.shidPixel = shid;
6676	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6677
6678	Assert(type == SVGA3D_SHADERTYPE_PS);
6679	if ( shid < pContext->cPixelShaders
6680	&& pContext->paPixelShader[shid].id == shid)
6681	{
6682	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6683	Assert(type == pShader->type);
6684
6685	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6686	AssertRCReturn(rc, rc);
6687	}
6688	else
6689	if (shid == SVGA_ID_INVALID)
6690	{
6691	/* Unselect shader. */
6692	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6693	AssertRCReturn(rc, rc);
6694	}
6695	else
6696	AssertFailedReturn(VERR_INVALID_PARAMETER);
6697	}
6698
6699	return VINF_SUCCESS;
6700	}
6701
6702	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6703	{
6704	PVMSVGA3DCONTEXT pContext;
6705	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6706	AssertReturn(pState, VERR_NO_MEMORY);
6707	int rc;
6708
6709	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6710
6711	if ( cid >= pState->cContexts
6712	\|\| pState->papContexts[cid]->id != cid)
6713	{
6714	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6715	return VERR_INVALID_PARAMETER;
6716	}
6717	pContext = pState->papContexts[cid];
6718	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6719
6720	for (uint32_t i = 0; i < cRegisters; i++)
6721	{
6722	#ifdef LOG_ENABLED
6723	switch (ctype)
6724	{
6725	case SVGA3D_CONST_TYPE_FLOAT:
6726	{
6727	float pValuesF = (float )pValues;
6728	Log(("Constant %d: value=%d-%d-%d-%d\n", reg + i, (int)(pValuesF[i4 + 0] 100.0), (int)(pValuesF[i4 + 1] 100.0), (int)(pValuesF[i4 + 2] 100.0), (int)(pValuesF[i4 + 3] 100.0)));
6729	break;
6730	}
6731
6732	case SVGA3D_CONST_TYPE_INT:
6733	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6734	break;
6735
6736	case SVGA3D_CONST_TYPE_BOOL:
6737	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6738	break;
6739	}
6740	#endif
6741	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6742	}
6743
6744	switch (type)
6745	{
6746	case SVGA3D_SHADERTYPE_VS:
6747	switch (ctype)
6748	{
6749	case SVGA3D_CONST_TYPE_FLOAT:
6750	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6751	break;
6752
6753	case SVGA3D_CONST_TYPE_INT:
6754	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6755	break;
6756
6757	case SVGA3D_CONST_TYPE_BOOL:
6758	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6759	break;
6760
6761	default:
6762	AssertFailedReturn(VERR_INVALID_PARAMETER);
6763	}
6764	AssertRCReturn(rc, rc);
6765	break;
6766
6767	case SVGA3D_SHADERTYPE_PS:
6768	switch (ctype)
6769	{
6770	case SVGA3D_CONST_TYPE_FLOAT:
6771	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6772	break;
6773
6774	case SVGA3D_CONST_TYPE_INT:
6775	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6776	break;
6777
6778	case SVGA3D_CONST_TYPE_BOOL:
6779	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6780	break;
6781
6782	default:
6783	AssertFailedReturn(VERR_INVALID_PARAMETER);
6784	}
6785	AssertRCReturn(rc, rc);
6786	break;
6787
6788	default:
6789	AssertFailedReturn(VERR_INVALID_PARAMETER);
6790	}
6791
6792	return VINF_SUCCESS;
6793	}
6794
6795	int vmsvga3dOcclusionQueryCreate(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6796	{
6797	AssertReturn(pState->ext.glGenQueries, VERR_NOT_SUPPORTED);
6798	GLuint idQuery = 0;
6799	pState->ext.glGenQueries(1, &idQuery);
6800	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6801	AssertReturn(idQuery, VERR_INTERNAL_ERROR);
6802	pContext->occlusion.idQuery = idQuery;
6803	return VINF_SUCCESS;
6804	}
6805
6806	int vmsvga3dOcclusionQueryDelete(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6807	{
6808	AssertReturn(pState->ext.glDeleteQueries, VERR_NOT_SUPPORTED);
6809	if (pContext->occlusion.idQuery)
6810	{
6811	pState->ext.glDeleteQueries(1, &pContext->occlusion.idQuery);
6812	}
6813	return VINF_SUCCESS;
6814	}
6815
6816	int vmsvga3dOcclusionQueryBegin(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6817	{
6818	AssertReturn(pState->ext.glBeginQuery, VERR_NOT_SUPPORTED);
6819	pState->ext.glBeginQuery(GL_ANY_SAMPLES_PASSED, pContext->occlusion.idQuery);
6820	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6821	return VINF_SUCCESS;
6822	}
6823
6824	int vmsvga3dOcclusionQueryEnd(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
6825	{
6826	RT_NOREF(pContext);
6827	AssertReturn(pState->ext.glEndQuery, VERR_NOT_SUPPORTED);
6828	pState->ext.glEndQuery(GL_ANY_SAMPLES_PASSED);
6829	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6830	return VINF_SUCCESS;
6831	}
6832
6833	int vmsvga3dOcclusionQueryGetData(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t *pu32Pixels)
6834	{
6835	AssertReturn(pState->ext.glGetQueryObjectuiv, VERR_NOT_SUPPORTED);
6836	GLuint pixels = 0;
6837	pState->ext.glGetQueryObjectuiv(pContext->occlusion.idQuery, GL_QUERY_RESULT, &pixels);
6838	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6839
6840	*pu32Pixels = (uint32_t)pixels;
6841	return VINF_SUCCESS;
6842	}

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 71930

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