DevVGA-SVGA3d-ogl.cpp@ 63427

Last change on this file since 63427 was 63211, checked in by vboxsync, 8 years ago
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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 63211 2016-08-09 14:47:23Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2016 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 <VBox/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].size.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 fActualGLVersion The actual OpenGL version we're working against.
176	* @param rsMinGLVersion The OpenGL version that introduced this feature
177	* into the core.
178	* @param pszWantedExtension The name of the OpenGL extension we want padded
179	* with one space at each end.
180	* @remarks Init time only.
181	*/
182	static bool vmsvga3dCheckGLExtension(PVMSVGA3DSTATE pState, float rsMinGLVersion, const char *pszWantedExtension)
183	{
184	RT_NOREF(rsMinGLVersion);
185	/* check padding. */
186	Assert(pszWantedExtension[0] == ' ');
187	Assert(pszWantedExtension[1] != ' ');
188	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
189
190	/* Look it up. */
191	bool fRet = false;
192	if (strstr(pState->pszExtensions, pszWantedExtension))
193	fRet = true;
194
195	/* Temporarily. Later start if (rsMinGLVersion != 0.0 && fActualGLVersion >= rsMinGLVersion) return true; */
196	#ifdef RT_OS_DARWIN
197	AssertMsg( rsMinGLVersion == 0.0
198	\|\| fRet == (pState->rsGLVersion >= rsMinGLVersion)
199	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
200	("%s actual:%d min:%d fRet=%d\n",
201	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
202	#else
203	AssertMsg(rsMinGLVersion == 0.0 \|\| fRet == (pState->rsGLVersion >= rsMinGLVersion),
204	("%s actual:%d min:%d fRet=%d\n",
205	pszWantedExtension, (int)(pState->rsGLVersion * 10), (int)(rsMinGLVersion * 10), fRet));
206	#endif
207	return fRet;
208	}
209
210
211	/**
212	* Outputs GL_EXTENSIONS list to the release log.
213	*/
214	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
215	{
216	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
217	bool fBuffered = RTLogRelSetBuffering(true);
218
219	/*
220	* Determin the column widths first.
221	*/
222	size_t acchWidths[4] = { 1, 1, 1, 1 };
223	uint32_t i;
224	const char *psz = pszExtensions;
225	for (i = 0; ; i++)
226	{
227	while (*psz == ' ')
228	psz++;
229	if (!*psz)
230	break;
231
232	const char *pszEnd = strchr(psz, ' ');
233	AssertBreak(pszEnd);
234	size_t cch = pszEnd - psz;
235
236	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
237	if (acchWidths[iColumn] < cch)
238	acchWidths[iColumn] = cch;
239
240	psz = pszEnd;
241	}
242
243	/*
244	* Output it.
245	*/
246	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
247	psz = pszExtensions;
248	for (i = 0; ; i++)
249	{
250	while (*psz == ' ')
251	psz++;
252	if (!*psz)
253	break;
254
255	const char *pszEnd = strchr(psz, ' ');
256	AssertBreak(pszEnd);
257	size_t cch = pszEnd - psz;
258
259	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
260	if (iColumn == 0)
261	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
262	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
263	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
264	else
265	LogRel((" %.*s", cch, psz));
266
267	psz = pszEnd;
268	}
269
270	RTLogRelSetBuffering(fBuffered);
271	LogRel(("\n"));
272	}
273
274	/**
275	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
276	* @a ppszExtensions.
277	*
278	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
279	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
280	* @param fGLProfileVersion The OpenGL profile version.
281	*/
282	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
283	{
284	int rc;
285	*ppszExtensions = NULL;
286
287	/*
288	* Try the old glGetString interface first.
289	*/
290	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
291	if (pszExtensions)
292	{
293	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
294	AssertLogRelRCReturn(rc, rc);
295	}
296	else
297	{
298	/*
299	* The new interface where each extension string is retrieved separately.
300	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
301	* the above GL_EXTENSIONS error lingers on darwin. sucks.
302	*/
303	#ifndef GL_NUM_EXTENSIONS
304	# define GL_NUM_EXTENSIONS 0x821D
305	#endif
306	GLint cExtensions = 1024;
307	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
308	Assert(cExtensions != 1024);
309
310	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
311	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
312
313	rc = RTStrAAppend(ppszExtensions, " ");
314	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
315	{
316	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
317	if (pszExt)
318	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
319	}
320	AssertRCReturn(rc, rc);
321	}
322
323	#if 1
324	/*
325	* Add extensions promoted into the core OpenGL profile.
326	*/
327	static const struct
328	{
329	float fGLVersion;
330	const char *pszzExtensions;
331	} s_aPromotedExtensions[] =
332	{
333	{
334	1.1f,
335	" GL_EXT_vertex_array \0"
336	" GL_EXT_polygon_offset \0"
337	" GL_EXT_blend_logic_op \0"
338	" GL_EXT_texture \0"
339	" GL_EXT_copy_texture \0"
340	" GL_EXT_subtexture \0"
341	" GL_EXT_texture_object \0"
342	" GL_ARB_framebuffer_object \0"
343	" GL_ARB_map_buffer_range \0"
344	" GL_ARB_vertex_array_object \0"
345	"\0"
346	},
347	{
348	1.2f,
349	" EXT_texture3D \0"
350	" EXT_bgra \0"
351	" EXT_packed_pixels \0"
352	" EXT_rescale_normal \0"
353	" EXT_separate_specular_color \0"
354	" SGIS_texture_edge_clamp \0"
355	" SGIS_texture_lod \0"
356	" EXT_draw_range_elements \0"
357	"\0"
358	},
359	{
360	1.3f,
361	" GL_ARB_texture_compression \0"
362	" GL_ARB_texture_cube_map \0"
363	" GL_ARB_multisample \0"
364	" GL_ARB_multitexture \0"
365	" GL_ARB_texture_env_add \0"
366	" GL_ARB_texture_env_combine \0"
367	" GL_ARB_texture_env_dot3 \0"
368	" GL_ARB_texture_border_clamp \0"
369	" GL_ARB_transpose_matrix \0"
370	"\0"
371	},
372	{
373	1.5f,
374	" GL_SGIS_generate_mipmap \0"
375	/" GL_NV_blend_equare \0"/
376	" GL_ARB_depth_texture \0"
377	" GL_ARB_shadow \0"
378	" GL_EXT_fog_coord \0"
379	" GL_EXT_multi_draw_arrays \0"
380	" GL_ARB_point_parameters \0"
381	" GL_EXT_secondary_color \0"
382	" GL_EXT_blend_func_separate \0"
383	" GL_EXT_stencil_wrap \0"
384	" GL_ARB_texture_env_crossbar \0"
385	" GL_EXT_texture_lod_bias \0"
386	" GL_ARB_texture_mirrored_repeat \0"
387	" GL_ARB_window_pos \0"
388	"\0"
389	},
390	{
391	1.6f,
392	" GL_ARB_vertex_buffer_object \0"
393	" GL_ARB_occlusion_query \0"
394	" GL_EXT_shadow_funcs \0"
395	},
396	{
397	2.0f,
398	" GL_ARB_shader_objects \0" /??/
399	" GL_ARB_vertex_shader \0" /??/
400	" GL_ARB_fragment_shader \0" /??/
401	" GL_ARB_shading_language_100 \0" /??/
402	" GL_ARB_draw_buffers \0"
403	" GL_ARB_texture_non_power_of_two \0"
404	" GL_ARB_point_sprite \0"
405	" GL_ATI_separate_stencil \0"
406	" GL_EXT_stencil_two_side \0"
407	"\0"
408	},
409	{
410	2.1f,
411	" GL_ARB_pixel_buffer_object \0"
412	" GL_EXT_texture_sRGB \0"
413	"\0"
414	},
415	{
416	3.0f,
417	" GL_ARB_framebuffer_object \0"
418	" GL_ARB_map_buffer_range \0"
419	" GL_ARB_vertex_array_object \0"
420	"\0"
421	},
422	{
423	3.1f,
424	" GL_ARB_copy_buffer \0"
425	" GL_ARB_uniform_buffer_object \0"
426	"\0"
427	},
428	{
429	3.2f,
430	" GL_ARB_vertex_array_bgra \0"
431	" GL_ARB_draw_elements_base_vertex \0"
432	" GL_ARB_fragment_coord_conventions \0"
433	" GL_ARB_provoking_vertex \0"
434	" GL_ARB_seamless_cube_map \0"
435	" GL_ARB_texture_multisample \0"
436	" GL_ARB_depth_clamp \0"
437	" GL_ARB_sync \0"
438	" GL_ARB_geometry_shader4 \0" /??/
439	"\0"
440	},
441	{
442	3.3f,
443	" GL_ARB_blend_func_extended \0"
444	" GL_ARB_sampler_objects \0"
445	" GL_ARB_explicit_attrib_location \0"
446	" GL_ARB_occlusion_query2 \0"
447	" GL_ARB_shader_bit_encoding \0"
448	" GL_ARB_texture_rgb10_a2ui \0"
449	" GL_ARB_texture_swizzle \0"
450	" GL_ARB_timer_query \0"
451	" GL_ARB_vertex_type_2_10_10_10_rev \0"
452	"\0"
453	},
454	{
455	4.0f,
456	" GL_ARB_texture_query_lod \0"
457	" GL_ARB_draw_indirect \0"
458	" GL_ARB_gpu_shader5 \0"
459	" GL_ARB_gpu_shader_fp64 \0"
460	" GL_ARB_shader_subroutine \0"
461	" GL_ARB_tessellation_shader \0"
462	" GL_ARB_texture_buffer_object_rgb32 \0"
463	" GL_ARB_texture_cube_map_array \0"
464	" GL_ARB_texture_gather \0"
465	" GL_ARB_transform_feedback2 \0"
466	" GL_ARB_transform_feedback3 \0"
467	"\0"
468	},
469	{
470	4.1f,
471	" GL_ARB_ES2_compatibility \0"
472	" GL_ARB_get_program_binary \0"
473	" GL_ARB_separate_shader_objects \0"
474	" GL_ARB_shader_precision \0"
475	" GL_ARB_vertex_attrib_64bit \0"
476	" GL_ARB_viewport_array \0"
477	"\0"
478	}
479	};
480
481	uint32_t cPromoted = 0;
482	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
483	{
484	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
485	while (*pszExt)
486	{
487	# ifdef VBOX_STRICT
488	size_t cchExt = strlen(pszExt);
489	Assert(cchExt > 3);
490	Assert(pszExt[0] == ' ');
491	Assert(pszExt[1] != ' ');
492	Assert(pszExt[cchExt - 2] != ' ');
493	Assert(pszExt[cchExt - 1] == ' ');
494	# endif
495
496	if (strstr(*ppszExtensions, pszExt) == NULL)
497	{
498	if (cPromoted++ == 0)
499	{
500	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
501	AssertRCReturn(rc, rc);
502	}
503
504	rc = RTStrAAppend(ppszExtensions, pszExt);
505	AssertRCReturn(rc, rc);
506	}
507
508	pszExt = strchr(pszExt, '\0') + 1;
509	}
510	}
511	#endif
512
513	return VINF_SUCCESS;
514	}
515
516	/**
517	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnSwitchInitProfile}
518	*/
519	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
520	{
521	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
522	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
523	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
524	#else
525	NOREF(pThis);
526	NOREF(fOtherProfile);
527	#endif
528	}
529
530
531	/**
532	* @interface_method_impl{VBOXVMSVGASHADERIF,pfnGetNextExtension}
533	*/
534	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
535	char *pszBuf, size_t cbBuf, bool fOtherProfile)
536	{
537	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
538	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
539	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
540	while (*pszCur == ' ')
541	pszCur++;
542	if (!*pszCur)
543	return false;
544
545	const char *pszEnd = strchr(pszCur, ' ');
546	AssertReturn(pszEnd, false);
547	size_t cch = pszEnd - pszCur;
548	if (cch < cbBuf)
549	{
550	memcpy(pszBuf, pszCur, cch);
551	pszBuf[cch] = '\0';
552	}
553	else if (cbBuf > 0)
554	{
555	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
556	pszBuf[cbBuf - 1] = '\0';
557	}
558
559	ppvEnumCtx = (void )pszEnd;
560	return true;
561	}
562
563
564	/**
565	* Initializes the VMSVGA3D state during VGA device construction.
566	*
567	* Failure are generally not fatal, 3D support will just be disabled.
568	*
569	* @returns VBox status code.
570	* @param pThis The VGA device state where svga.p3dState will be modified.
571	*/
572	int vmsvga3dInit(PVGASTATE pThis)
573	{
574	AssertCompile(GL_TRUE == 1);
575	AssertCompile(GL_FALSE == 0);
576
577	/*
578	* Load and resolve imports from the external shared libraries.
579	*/
580	RTERRINFOSTATIC ErrInfo;
581	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
582	if (RT_FAILURE(rc))
583	{
584	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
585	return rc;
586	}
587	#ifdef RT_OS_DARWIN
588	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
589	if (RT_FAILURE(rc))
590	{
591	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
592	return rc;
593	}
594	#endif
595
596	/*
597	* Allocate the state.
598	*/
599	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
600	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
601
602	#ifdef RT_OS_WINDOWS
603	/* Create event semaphore and async IO thread. */
604	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
605	rc = RTSemEventCreate(&pState->WndRequestSem);
606	if (RT_SUCCESS(rc))
607	{
608	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
609	"VMSVGA3DWND");
610	if (RT_SUCCESS(rc))
611	return VINF_SUCCESS;
612
613	/* bail out. */
614	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
615	RTSemEventDestroy(pState->WndRequestSem);
616	}
617	else
618	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
619	RTMemFree(pThis->svga.p3dState);
620	pThis->svga.p3dState = NULL;
621	return rc;
622	#else
623	return VINF_SUCCESS;
624	#endif
625	}
626
627	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
628	int vmsvga3dPowerOn(PVGASTATE pThis)
629	{
630	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
631	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
632	PVMSVGA3DCONTEXT pContext;
633	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
634	PVMSVGA3DCONTEXT pOtherCtx;
635	#endif
636	int rc;
637
638	if (pState->rsGLVersion != 0.0)
639	return VINF_SUCCESS; /* already initialized (load state) */
640
641	/*
642	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
643	*/
644	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
645	AssertRCReturn(rc, rc);
646
647	pContext = pState->papContexts[1];
648	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
649
650	LogRel(("VMSVGA3d: OpenGL version: %s\n"
651	"VMSVGA3d: OpenGL Vendor: %s\n"
652	"VMSVGA3d: OpenGL Renderer: %s\n"
653	"VMSVGA3d: OpenGL shader language version: %s\n",
654	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
655	glGetString(GL_SHADING_LANGUAGE_VERSION)));
656
657	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
658	AssertRCReturn(rc, rc);
659	vmsvga3dLogRelExtensions("", pState->pszExtensions);
660
661	pState->rsGLVersion = atof((const char *)glGetString(GL_VERSION));
662
663
664	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
665	/*
666	* Get the extension list for the alternative profile so we can better
667	* figure out the shader model and stuff.
668	*/
669	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
670	AssertLogRelRCReturn(rc, rc);
671	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
672
673	pOtherCtx = pState->papContexts[2];
674	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
675
676	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
677	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
678	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
679	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
680	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
681	glGetString(GL_SHADING_LANGUAGE_VERSION)));
682
683	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
684	AssertRCReturn(rc, rc);
685	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
686
687	pState->rsOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
688
689	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
690	#else
691	pState->pszOtherExtensions = (char *)"";
692	pState->rsOtherGLVersion = pState->rsGLVersion;
693	#endif
694
695
696	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
697	{
698	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
699	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
700	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
701	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
702	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
703	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
704	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
705	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
706	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
707	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
708	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
709	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
710	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
711	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
712	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
713	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
714	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
715	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
716	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
717	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
718	}
719	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
720	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
721	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
722	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
723	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
724	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
725	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
726	#endif
727	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
728	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
729	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
730	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
731	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
732	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
733	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
734	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
735	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
736	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
737	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
738	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
739	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
740	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
741	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
742	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
743	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
744	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
745	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
746	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
747	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
748	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
749	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
750	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
751	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
752	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
753	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
754	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
755	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
756	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
757	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
758	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
759	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
760	#endif
761	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
762	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
763
764	/* OpenGL 3.2 core */
765	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
766	{
767	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
768	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
769	}
770	else
771	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
772
773	/* OpenGL 3.2 core */
774	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
775	{
776	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
777	}
778	else
779	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
780
781	/* Extension support */
782	#if defined(RT_OS_DARWIN)
783	/** @todo OpenGL version history suggest this, verify... */
784	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
785	#else
786	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
787	#endif
788
789	/*
790	* Initialize the capabilities with sensible defaults.
791	*/
792	pState->caps.maxActiveLights = 1;
793	pState->caps.maxTextureBufferSize = 65536;
794	pState->caps.maxTextures = 1;
795	pState->caps.maxClipDistances = 4;
796	pState->caps.maxColorAttachments = 1;
797	pState->caps.maxRectangleTextureSize = 2048;
798	pState->caps.maxTextureAnisotropy = 2;
799	pState->caps.maxVertexShaderInstructions = 1024;
800	pState->caps.maxFragmentShaderInstructions = 1024;
801	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
802	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
803	pState->caps.flPointSize[0] = 1;
804	pState->caps.flPointSize[1] = 1;
805
806	/*
807	* Query capabilities
808	*/
809	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
810	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
811	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
812	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
813	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
814	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
815	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
816	#else
817	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
818	#endif
819	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
820	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
821	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
822	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
823
824	if (pState->ext.glGetProgramivARB)
825	{
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
827	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
828	&pState->caps.maxFragmentShaderTemps));
829	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
830	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
831	&pState->caps.maxFragmentShaderInstructions));
832	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
833	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
834	&pState->caps.maxVertexShaderTemps));
835	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
836	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
837	&pState->caps.maxVertexShaderInstructions));
838	}
839	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
840
841	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
842	* ARB Assembly Language
843	* These are done through testing the presence of extensions. You should test them in this order:
844	* GL_NV_gpu_program4: SM 4.0 or better.
845	* GL_NV_vertex_program3: SM 3.0 or better.
846	* GL_ARB_fragment_program: SM 2.0 or better.
847	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
848	*
849	*/
850	/** @todo distinguish between vertex and pixel shaders??? */
851	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
852	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
853	{
854	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
855	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
856	}
857	else
858	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
859	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
860	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
861	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
862	)
863	{
864	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
865	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
866	}
867	else
868	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
869	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
870	{
871	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
872	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
873	}
874	else
875	{
876	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
877	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
878	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
879	}
880
881	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
882	{
883	/** @todo Intel drivers don't support this extension! */
884	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
885	}
886	#if 0
887	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
888	SVGA3D_DEVCAP_QUERY_TYPES = 15,
889	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
890	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
891	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
892	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
893	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
894	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
895	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
896	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
897	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
898	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
899	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
900	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
901	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
902	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
903	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
904	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
905	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
906	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
907	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
908	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
909	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
910	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
911	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
912	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
913	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
914	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
915	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
916	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
917	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
918	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
919	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
920	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
921	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
922	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
923	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
924	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
925	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
926	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
927	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
928	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
929	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
930	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
931	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
932	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
933	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
934	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
935	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
936	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
937	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
938	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
939	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
940	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
941	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
942	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
943	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
944	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
945	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
946	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
947	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
948	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
949	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
950	#endif
951
952	LogRel(("VMSVGA3d: Capabilities:\n"));
953	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
954	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
955	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
956	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
957	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
958	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
959	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
960	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
961	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
962	pState->caps.maxFragmentShaderTemps,
963	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
964	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
965	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
966	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
967
968
969	/* Initialize the shader library. */
970	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
971	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
972	rc = ShaderInitLib(&pState->ShaderIf);
973	AssertRC(rc);
974
975	/* Cleanup */
976	rc = vmsvga3dContextDestroy(pThis, 1);
977	AssertRC(rc);
978	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
979	rc = vmsvga3dContextDestroy(pThis, 2);
980	AssertRC(rc);
981	#endif
982
983	if ( pState->rsGLVersion < 3.0
984	&& pState->rsOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
985	{
986	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
987	return VERR_NOT_IMPLEMENTED;
988	}
989	if ( !pState->ext.glIsRenderbuffer
990	\|\| !pState->ext.glBindRenderbuffer
991	\|\| !pState->ext.glDeleteRenderbuffers
992	\|\| !pState->ext.glGenRenderbuffers
993	\|\| !pState->ext.glRenderbufferStorage
994	\|\| !pState->ext.glGetRenderbufferParameteriv
995	\|\| !pState->ext.glIsFramebuffer
996	\|\| !pState->ext.glBindFramebuffer
997	\|\| !pState->ext.glDeleteFramebuffers
998	\|\| !pState->ext.glGenFramebuffers
999	\|\| !pState->ext.glCheckFramebufferStatus
1000	\|\| !pState->ext.glFramebufferTexture1D
1001	\|\| !pState->ext.glFramebufferTexture2D
1002	\|\| !pState->ext.glFramebufferTexture3D
1003	\|\| !pState->ext.glFramebufferRenderbuffer
1004	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1005	\|\| !pState->ext.glGenerateMipmap
1006	\|\| !pState->ext.glBlitFramebuffer
1007	\|\| !pState->ext.glRenderbufferStorageMultisample
1008	\|\| !pState->ext.glFramebufferTextureLayer)
1009	{
1010	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1011	return VERR_NOT_IMPLEMENTED;
1012	}
1013
1014	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1015	pState->idTestContext = SVGA_ID_INVALID;
1016	#endif
1017	return VINF_SUCCESS;
1018	}
1019
1020	int vmsvga3dReset(PVGASTATE pThis)
1021	{
1022	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1023	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1024
1025	/* Destroy all leftover surfaces. */
1026	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1027	{
1028	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1029	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1030	}
1031
1032	/* Destroy all leftover contexts. */
1033	for (uint32_t i = 0; i < pState->cContexts; i++)
1034	{
1035	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1036	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1037	}
1038
1039	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1040	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1041
1042	return VINF_SUCCESS;
1043	}
1044
1045	int vmsvga3dTerminate(PVGASTATE pThis)
1046	{
1047	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1048	AssertReturn(pState, VERR_WRONG_ORDER);
1049	int rc;
1050
1051	rc = vmsvga3dReset(pThis);
1052	AssertRCReturn(rc, rc);
1053
1054	/* Terminate the shader library. */
1055	rc = ShaderDestroyLib();
1056	AssertRC(rc);
1057
1058	#ifdef RT_OS_WINDOWS
1059	/* Terminate the window creation thread. */
1060	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1061	AssertRCReturn(rc, rc);
1062
1063	RTSemEventDestroy(pState->WndRequestSem);
1064	#elif defined(RT_OS_DARWIN)
1065
1066	#elif defined(RT_OS_LINUX)
1067	/* signal to the thread that it is supposed to exit */
1068	pState->bTerminate = true;
1069	/* wait for it to terminate */
1070	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1071	AssertRC(rc);
1072	XCloseDisplay(pState->display);
1073	#endif
1074
1075	RTStrFree(pState->pszExtensions);
1076	pState->pszExtensions = NULL;
1077	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1078	RTStrFree(pState->pszOtherExtensions);
1079	#endif
1080	pState->pszOtherExtensions = NULL;
1081
1082	return VINF_SUCCESS;
1083	}
1084
1085
1086	void vmsvga3dUpdateHostScreenViewport(PVGASTATE pThis, uint32_t idScreen, VMSVGAVIEWPORT const *pOldViewport)
1087	{
1088	/** @todo Move the visible framebuffer content here, don't wait for the guest to
1089	* redraw it. */
1090
1091	#ifdef RT_OS_DARWIN
1092	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1093	if ( pState
1094	&& idScreen == 0
1095	&& pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1096	{
1097	vmsvga3dCocoaViewUpdateViewport(pState->SharedCtx.cocoaView);
1098	}
1099	#else
1100	RT_NOREF(pThis, idScreen, pOldViewport);
1101	#endif
1102	}
1103
1104
1105	/**
1106	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1107	* given surface format capability.
1108	*
1109	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1110	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1111	*
1112	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1113	* of implicit guest expectations:
1114	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1115	*/
1116	static uint32_t vmsvga3dGetSurfaceFormatSupport(uint32_t idx3dCaps)
1117	{
1118	uint32_t result = 0;
1119
1120	/** @todo missing:
1121	*
1122	* SVGA3DFORMAT_OP_PIXELSIZE
1123	*/
1124
1125	switch (idx3dCaps)
1126	{
1127	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1128	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1129	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1130	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1131	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1132	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1133	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1134	break;
1135
1136	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1137	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1138	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1139	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1140	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1141	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1142	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1143	break;
1144	}
1145
1146	/** @todo check hardware caps! */
1147	switch (idx3dCaps)
1148	{
1149	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1150	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1151	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1152	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1153	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1154	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1155	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1156	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1157	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1158	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1159	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1160	result \|= SVGA3DFORMAT_OP_TEXTURE
1161	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1162	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1163	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1164	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1165	\| SVGA3DFORMAT_OP_CUBETEXTURE
1166	\| SVGA3DFORMAT_OP_SRGBREAD
1167	\| SVGA3DFORMAT_OP_SRGBWRITE;
1168	break;
1169
1170	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1171	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1172	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1173	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1174	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1175	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1176	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1177	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1178	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1179	break;
1180
1181	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1182	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1183	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1184	result \|= SVGA3DFORMAT_OP_TEXTURE
1185	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1186	\| SVGA3DFORMAT_OP_CUBETEXTURE
1187	\| SVGA3DFORMAT_OP_SRGBREAD;
1188	break;
1189
1190	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1191	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1192	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1193	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1194	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1195	break;
1196
1197	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1198	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1199	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1200	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1201	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1202	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1203	break;
1204
1205	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1206	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1207	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1208
1209	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1210	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1211	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1212	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1213	break;
1214	}
1215	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1216
1217	return result;
1218	}
1219
1220	#if 0 /* unused */
1221	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1222	{
1223	RT_NOREF(pState3D, idx3dCaps);
1224
1225	/** @todo test this somehow */
1226	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1227
1228	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1229	return result;
1230	}
1231	#endif
1232
1233
1234	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1235	{
1236	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1237	AssertReturn(pState, VERR_NO_MEMORY);
1238	int rc = VINF_SUCCESS;
1239
1240	*pu32Val = 0;
1241
1242	/*
1243	* The capabilities access by current (2015-03-01) linux sources (gallium,
1244	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1245	* aren't access.
1246	*/
1247
1248	switch (idx3dCaps)
1249	{
1250	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1251	case SVGA3D_DEVCAP_3D:
1252	pu32Val = 1; / boolean? */
1253	break;
1254
1255	case SVGA3D_DEVCAP_MAX_LIGHTS:
1256	*pu32Val = pState->caps.maxActiveLights;
1257	break;
1258
1259	case SVGA3D_DEVCAP_MAX_TEXTURES:
1260	*pu32Val = pState->caps.maxTextures;
1261	break;
1262
1263	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1264	*pu32Val = pState->caps.maxClipDistances;
1265	break;
1266
1267	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1268	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1269	*pu32Val = pState->caps.vertexShaderVersion;
1270	break;
1271
1272	case SVGA3D_DEVCAP_VERTEX_SHADER:
1273	/* boolean? */
1274	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1275	break;
1276
1277	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1278	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1279	*pu32Val = pState->caps.fragmentShaderVersion;
1280	break;
1281
1282	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1283	/* boolean? */
1284	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1285	break;
1286
1287	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1288	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1289	/* Must be obsolete by now; surface format caps specify the same thing. */
1290	rc = VERR_INVALID_PARAMETER;
1291	break;
1292
1293	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1294	break;
1295
1296	/*
1297	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1298	* return TRUE. Even on physical hardware that does not support
1299	* these formats natively, the SVGA3D device will provide an emulation
1300	* which should be invisible to the guest OS.
1301	*/
1302	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1303	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1304	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1305	*pu32Val = 1;
1306	break;
1307
1308	case SVGA3D_DEVCAP_QUERY_TYPES:
1309	break;
1310
1311	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1312	break;
1313
1314	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1315	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1316	AssertCompile(sizeof(uint32_t) == sizeof(float));
1317	(float )pu32Val = pState->caps.flPointSize[1];
1318	break;
1319
1320	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1321	/** @todo ?? */
1322	rc = VERR_INVALID_PARAMETER;
1323	break;
1324
1325	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1326	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1327	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1328	*pu32Val = pState->caps.maxRectangleTextureSize;
1329	break;
1330
1331	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1332	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1333	//*pu32Val = pCaps->MaxVolumeExtent;
1334	break;
1335
1336	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1337	pu32Val = 32768; / hardcoded in Wine */
1338	break;
1339
1340	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1341	//*pu32Val = pCaps->MaxTextureAspectRatio;
1342	break;
1343
1344	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1345	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1346	*pu32Val = pState->caps.maxTextureAnisotropy;
1347	break;
1348
1349	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1350	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1351	pu32Val = 0xFFFFF; / hardcoded in Wine */
1352	break;
1353
1354	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1355	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1356	*pu32Val = pState->caps.maxVertexShaderInstructions;
1357	break;
1358
1359	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1360	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1361	break;
1362
1363	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1364	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1365	*pu32Val = pState->caps.maxVertexShaderTemps;
1366	break;
1367
1368	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1369	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1370	*pu32Val = pState->caps.maxFragmentShaderTemps;
1371	break;
1372
1373	case SVGA3D_DEVCAP_TEXTURE_OPS:
1374	break;
1375
1376	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1377	break;
1378
1379	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1380	break;
1381
1382	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1383	break;
1384
1385	case SVGA3D_DEVCAP_SUPERSAMPLE:
1386	break;
1387
1388	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1389	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1390	break;
1391
1392	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1393	break;
1394
1395	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1396	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1397	*pu32Val = pState->caps.maxColorAttachments;
1398	break;
1399
1400	/*
1401	* This is the maximum number of SVGA context IDs that the guest
1402	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1403	*/
1404	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1405	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1406	break;
1407
1408	/*
1409	* This is the maximum number of SVGA surface IDs that the guest
1410	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1411	*/
1412	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1413	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1414	break;
1415
1416	#if 0 /* Appeared more recently, not yet implemented. */
1417	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1418	case SVGA3D_DEVCAP_LINE_AA:
1419	break;
1420	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1421	case SVGA3D_DEVCAP_LINE_STIPPLE:
1422	break;
1423	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1424	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1425	break;
1426	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1427	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1428	break;
1429	#endif
1430
1431	/*
1432	* Supported surface formats.
1433	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1434	*/
1435	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1436	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1437	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1438	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1439	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1440	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1441	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1442	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1443	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1444	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1445	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1446	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1447	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1448	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1449	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1450	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1451	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1452	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1453	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1454	break;
1455
1456	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1457	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1458	pu32Val = 0; / apparently not supported in OpenGL */
1459	break;
1460
1461	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1462	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1463	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1464	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1465	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1466	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1467	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1469	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1470	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1471	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1472	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1473	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1474	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1475	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1476	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1477	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1478	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1479	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1480	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1481	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1482	break;
1483
1484	/* Linux: Not referenced in current sources. */
1485	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1486	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1487	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1488	rc = VERR_INVALID_PARAMETER;
1489	*pu32Val = 0;
1490	break;
1491
1492	default:
1493	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1494	rc = VERR_INVALID_PARAMETER;
1495	break;
1496	}
1497
1498	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1499	return rc;
1500	}
1501
1502	/**
1503	* Convert SVGA format value to its OpenGL equivalent
1504	*
1505	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1506	* help from wined3dformat_from_d3dformat().
1507	*/
1508	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1509	{
1510	switch (format)
1511	{
1512	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1513	pSurface->internalFormatGL = GL_RGB8;
1514	pSurface->formatGL = GL_BGRA;
1515	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1516	break;
1517	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1518	pSurface->internalFormatGL = GL_RGBA8;
1519	pSurface->formatGL = GL_BGRA;
1520	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1521	break;
1522	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1523	pSurface->internalFormatGL = GL_RGB5;
1524	pSurface->formatGL = GL_RGB;
1525	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1526	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1527	break;
1528	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1529	pSurface->internalFormatGL = GL_RGB5;
1530	pSurface->formatGL = GL_BGRA;
1531	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1532	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1533	break;
1534	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1535	pSurface->internalFormatGL = GL_RGB5_A1;
1536	pSurface->formatGL = GL_BGRA;
1537	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1538	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1539	break;
1540	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1541	pSurface->internalFormatGL = GL_RGBA4;
1542	pSurface->formatGL = GL_BGRA;
1543	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1544	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1545	break;
1546
1547	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1548	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1549	pSurface->formatGL = GL_DEPTH_COMPONENT;
1550	pSurface->typeGL = GL_UNSIGNED_INT;
1551	break;
1552	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1553	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1554	pSurface->formatGL = GL_DEPTH_COMPONENT;
1555	pSurface->typeGL = GL_UNSIGNED_SHORT;
1556	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1557	break;
1558	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1559	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1560	pSurface->formatGL = GL_DEPTH_STENCIL;
1561	pSurface->typeGL = GL_UNSIGNED_INT;
1562	break;
1563	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1564	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
1565	pSurface->formatGL = GL_DEPTH_STENCIL;
1566	pSurface->typeGL = GL_UNSIGNED_SHORT;
1567	/** @todo Wine sources hints at no hw support for this, so test this one! */
1568	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1569	break;
1570	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1571	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1572	pSurface->formatGL = GL_DEPTH_COMPONENT;
1573	pSurface->typeGL = GL_UNSIGNED_INT;
1574	break;
1575
1576	/* Advanced D3D9 depth formats. */
1577	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1578	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1579	pSurface->formatGL = GL_DEPTH_COMPONENT;
1580	pSurface->typeGL = GL_FLOAT;
1581	break;
1582
1583	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1584	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1585	pSurface->formatGL = GL_DEPTH_COMPONENT;
1586	pSurface->typeGL = GL_FLOAT; /* ??? */
1587	break;
1588
1589	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1590	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1591	pSurface->formatGL = GL_DEPTH_STENCIL;
1592	pSurface->typeGL = GL_INT; /* ??? */
1593	break;
1594
1595	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1596	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1597	#if 0
1598	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1599	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1600	#else /* wine suggests: */
1601	pSurface->formatGL = GL_RGBA;
1602	pSurface->typeGL = GL_UNSIGNED_BYTE;
1603	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1604	#endif
1605	break;
1606
1607	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1608	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1609	#if 0 /** @todo this needs testing... */
1610	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1611	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1612	#else /* wine suggests: */
1613	pSurface->formatGL = GL_RGBA;
1614	pSurface->typeGL = GL_UNSIGNED_BYTE;
1615	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1616	#endif
1617	break;
1618
1619	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1620	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1621	#if 0 /** @todo this needs testing... */
1622	pSurface->formatGL = GL_RGBA_S3TC;
1623	pSurface->typeGL = GL_UNSIGNED_INT;
1624	#else /* wine suggests: */
1625	pSurface->formatGL = GL_RGBA;
1626	pSurface->typeGL = GL_UNSIGNED_BYTE;
1627	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1628	#endif
1629	break;
1630
1631	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1632	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1633	pSurface->formatGL = GL_LUMINANCE;
1634	pSurface->typeGL = GL_UNSIGNED_BYTE;
1635	break;
1636
1637	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1638	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1639	pSurface->formatGL = GL_LUMINANCE;
1640	pSurface->typeGL = GL_UNSIGNED_SHORT;
1641	break;
1642
1643	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1644	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1645	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1646	pSurface->typeGL = GL_UNSIGNED_BYTE;
1647	break;
1648
1649	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1650	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1651	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1652	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1653	break;
1654
1655	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1656	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1657	pSurface->formatGL = GL_ALPHA;
1658	pSurface->typeGL = GL_UNSIGNED_BYTE;
1659	break;
1660
1661	#if 0
1662
1663	/* Bump-map formats */
1664	case SVGA3D_BUMPU8V8:
1665	return D3DFMT_V8U8;
1666	case SVGA3D_BUMPL6V5U5:
1667	return D3DFMT_L6V5U5;
1668	case SVGA3D_BUMPX8L8V8U8:
1669	return D3DFMT_X8L8V8U8;
1670	case SVGA3D_BUMPL8V8U8:
1671	/* No corresponding D3D9 equivalent. */
1672	AssertFailedReturn(D3DFMT_UNKNOWN);
1673	/* signed bump-map formats */
1674	case SVGA3D_V8U8:
1675	return D3DFMT_V8U8;
1676	case SVGA3D_Q8W8V8U8:
1677	return D3DFMT_Q8W8V8U8;
1678	case SVGA3D_CxV8U8:
1679	return D3DFMT_CxV8U8;
1680	/* mixed bump-map formats */
1681	case SVGA3D_X8L8V8U8:
1682	return D3DFMT_X8L8V8U8;
1683	case SVGA3D_A2W10V10U10:
1684	return D3DFMT_A2W10V10U10;
1685	#endif
1686
1687	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1688	pSurface->internalFormatGL = GL_RGBA16F;
1689	pSurface->formatGL = GL_RGBA;
1690	#if 0 /* bird: wine uses half float, sounds correct to me... */
1691	pSurface->typeGL = GL_FLOAT;
1692	#else
1693	pSurface->typeGL = GL_HALF_FLOAT;
1694	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1695	#endif
1696	break;
1697
1698	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1699	pSurface->internalFormatGL = GL_RGBA32F;
1700	pSurface->formatGL = GL_RGBA;
1701	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1702	break;
1703
1704	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1705	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1706	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1707	pSurface->formatGL = GL_RGBA;
1708	#else
1709	pSurface->formatGL = GL_BGRA;
1710	#endif
1711	pSurface->typeGL = GL_UNSIGNED_INT;
1712	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1713	break;
1714
1715
1716	/* Single- and dual-component floating point formats */
1717	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1718	pSurface->internalFormatGL = GL_R16F;
1719	pSurface->formatGL = GL_RED;
1720	#if 0 /* bird: wine uses half float, sounds correct to me... */
1721	pSurface->typeGL = GL_FLOAT;
1722	#else
1723	pSurface->typeGL = GL_HALF_FLOAT;
1724	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1725	#endif
1726	break;
1727	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1728	pSurface->internalFormatGL = GL_R32F;
1729	pSurface->formatGL = GL_RG;
1730	pSurface->typeGL = GL_FLOAT;
1731	break;
1732	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1733	pSurface->internalFormatGL = GL_RG16F;
1734	pSurface->formatGL = GL_RG;
1735	#if 0 /* bird: wine uses half float, sounds correct to me... */
1736	pSurface->typeGL = GL_FLOAT;
1737	#else
1738	pSurface->typeGL = GL_HALF_FLOAT;
1739	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1740	#endif
1741	break;
1742	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1743	pSurface->internalFormatGL = GL_RG32F;
1744	pSurface->formatGL = GL_RG;
1745	pSurface->typeGL = GL_FLOAT;
1746	break;
1747
1748	/*
1749	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1750	* the most efficient format to use when creating new surfaces
1751	* expressly for index or vertex data.
1752	*/
1753	case SVGA3D_BUFFER:
1754	pSurface->internalFormatGL = -1;
1755	pSurface->formatGL = -1;
1756	pSurface->typeGL = -1;
1757	break;
1758
1759	#if 0
1760	return D3DFMT_UNKNOWN;
1761
1762	case SVGA3D_V16U16:
1763	return D3DFMT_V16U16;
1764	#endif
1765
1766	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1767	pSurface->internalFormatGL = GL_RG16;
1768	pSurface->formatGL = GL_RG;
1769	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1770	pSurface->typeGL = GL_UNSIGNED_INT;
1771	#else
1772	pSurface->typeGL = GL_UNSIGNED_SHORT;
1773	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1774	#endif
1775	break;
1776
1777	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1778	pSurface->internalFormatGL = GL_RGBA16;
1779	pSurface->formatGL = GL_RGBA;
1780	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1781	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1782	#else
1783	pSurface->typeGL = GL_UNSIGNED_SHORT;
1784	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1785	#endif
1786	break;
1787
1788	#if 0
1789	/* Packed Video formats */
1790	case SVGA3D_UYVY:
1791	return D3DFMT_UYVY;
1792	case SVGA3D_YUY2:
1793	return D3DFMT_YUY2;
1794
1795	/* Planar video formats */
1796	case SVGA3D_NV12:
1797	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1798
1799	/* Video format with alpha */
1800	case SVGA3D_AYUV:
1801	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1802
1803	case SVGA3D_BC4_UNORM:
1804	case SVGA3D_BC5_UNORM:
1805	/* Unknown; only in DX10 & 11 */
1806	break;
1807	#endif
1808	default:
1809	AssertMsgFailed(("Unsupported format %d\n", format));
1810	break;
1811	}
1812	}
1813
1814
1815	#if 0
1816	/**
1817	* Convert SVGA multi sample count value to its D3D equivalent
1818	*/
1819	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1820	{
1821	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1822	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1823
1824	if (multisampleCount > 16)
1825	return D3DMULTISAMPLE_NONE;
1826
1827	/** @todo exact same mapping as d3d? */
1828	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1829	}
1830	#endif
1831
1832	/**
1833	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1834	*
1835	* @param pState The VMSVGA3d state.
1836	* @param pSurface The surface being destroyed.
1837	*/
1838	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1839	{
1840	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1841	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1842
1843	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1844	{
1845	case SVGA3D_SURFACE_CUBEMAP:
1846	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1847	break;
1848
1849	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1850	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1851	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1852	{
1853	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1854	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1855	}
1856	break;
1857
1858	case SVGA3D_SURFACE_HINT_TEXTURE:
1859	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1860	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1861	{
1862	glDeleteTextures(1, &pSurface->oglId.texture);
1863	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1864	}
1865	break;
1866
1867	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1868	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1869	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1870	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1871	{
1872	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1873	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1874	}
1875	break;
1876
1877	default:
1878	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1879	break;
1880	}
1881	}
1882
1883
1884	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1885	{
1886	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1887	uint32_t sidSrc = src.sid;
1888	uint32_t sidDest = dest.sid;
1889	int rc = VINF_SUCCESS;
1890
1891	AssertReturn(pState, VERR_NO_MEMORY);
1892	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1893	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1894	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1895	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1896
1897	for (uint32_t i = 0; i < cCopyBoxes; i++)
1898	{
1899	SVGA3dBox destBox, srcBox;
1900
1901	srcBox.x = pBox[i].srcx;
1902	srcBox.y = pBox[i].srcy;
1903	srcBox.z = pBox[i].srcz;
1904	srcBox.w = pBox[i].w;
1905	srcBox.h = pBox[i].h;
1906	srcBox.d = pBox[i].z; /* XXX what about pBox[i].d? */
1907
1908	destBox.x = pBox[i].x;
1909	destBox.y = pBox[i].y;
1910	destBox.z = pBox[i].z;
1911	destBox.w = pBox[i].w;
1912	destBox.h = pBox[i].h;
1913	destBox.z = pBox[i].z; /* XXX initializing destBox.z again? What about pBox[i].d and destBox.d? */
1914
1915	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1916	AssertRCReturn(rc, rc);
1917	}
1918	return VINF_SUCCESS;
1919	}
1920
1921
1922	/**
1923	* Save texture unpacking parameters and loads those appropriate for the given
1924	* surface.
1925	*
1926	* @param pState The VMSVGA3D state structure.
1927	* @param pContext The active context.
1928	* @param pSurface The surface.
1929	* @param pSave Where to save stuff.
1930	*/
1931	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1932	PVMSVGAPACKPARAMS pSave)
1933	{
1934	RT_NOREF(pState);
1935
1936	/*
1937	* Save (ignore errors, setting the defaults we want and avoids restore).
1938	*/
1939	pSave->iAlignment = 1;
1940	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1941	pSave->cxRow = 0;
1942	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1943
1944	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1945	pSave->cyImage = 0;
1946	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1947	Assert(pSave->cyImage == 0);
1948
1949	pSave->fSwapBytes = GL_FALSE;
1950	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1951	Assert(pSave->fSwapBytes == GL_FALSE);
1952
1953	pSave->fLsbFirst = GL_FALSE;
1954	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1955	Assert(pSave->fLsbFirst == GL_FALSE);
1956
1957	pSave->cSkipRows = 0;
1958	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1959	Assert(pSave->cSkipRows == 0);
1960
1961	pSave->cSkipPixels = 0;
1962	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1963	Assert(pSave->cSkipPixels == 0);
1964
1965	pSave->cSkipImages = 0;
1966	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1967	Assert(pSave->cSkipImages == 0);
1968
1969	VMSVGA3D_CLEAR_GL_ERRORS();
1970	#endif
1971
1972	/*
1973	* Setup unpack.
1974	*
1975	* Note! We use 1 as alignment here because we currently don't do any
1976	* aligning of line pitches anywhere.
1977	*/
1978	NOREF(pSurface);
1979	if (pSave->iAlignment != 1)
1980	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
1981	if (pSave->cxRow != 0)
1982	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
1983	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1984	if (pSave->cyImage != 0)
1985	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
1986	if (pSave->fSwapBytes != 0)
1987	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
1988	if (pSave->fLsbFirst != 0)
1989	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
1990	if (pSave->cSkipRows != 0)
1991	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
1992	if (pSave->cSkipPixels != 0)
1993	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
1994	if (pSave->cSkipImages != 0)
1995	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
1996	#endif
1997	}
1998
1999
2000	/**
2001	* Restores texture unpacking parameters.
2002	*
2003	* @param pState The VMSVGA3D state structure.
2004	* @param pContext The active context.
2005	* @param pSurface The surface.
2006	* @param pSave Where stuff was saved.
2007	*/
2008	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2009	PCVMSVGAPACKPARAMS pSave)
2010	{
2011	RT_NOREF(pState, pSurface);
2012
2013	if (pSave->iAlignment != 1)
2014	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2015	if (pSave->cxRow != 0)
2016	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2017	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2018	if (pSave->cyImage != 0)
2019	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2020	if (pSave->fSwapBytes != 0)
2021	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2022	if (pSave->fLsbFirst != 0)
2023	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2024	if (pSave->cSkipRows != 0)
2025	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2026	if (pSave->cSkipPixels != 0)
2027	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2028	if (pSave->cSkipImages != 0)
2029	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2030	#endif
2031	}
2032
2033
2034	/**
2035	* Create D3D/OpenGL texture object for the specified surface.
2036	*
2037	* Surfaces are created when needed.
2038	*
2039	* @param pState The VMSVGA3d state.
2040	* @param pContext The context.
2041	* @param idAssociatedContext Probably the same as pContext->id.
2042	* @param pSurface The surface to create the texture for.
2043	*/
2044	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2045	PVMSVGA3DSURFACE pSurface)
2046	{
2047	RT_NOREF(idAssociatedContext);
2048	GLint activeTexture = 0;
2049	uint32_t idPrevCtx = pState->idActiveContext;
2050	pContext = &pState->SharedCtx;
2051	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2052
2053	glGenTextures(1, &pSurface->oglId.texture);
2054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2055	/** @todo Set the mip map generation filter settings. */
2056
2057	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2058	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2059
2060	/* Must bind texture to the current context in order to change it. */
2061	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2062	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2063
2064	/* Set the unpacking parameters. */
2065	VMSVGAPACKPARAMS SavedParams;
2066	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2067
2068	/* Set the mipmap base and max level paramters. */
2069	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2071	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2072	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2073
2074	if (pSurface->fDirty)
2075	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2076
2077	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2078	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2079	{
2080	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2081	exposing random host memory to the guest and helps a with the fedora 21 surface
2082	corruption issues (launchpad, background, search field, login). */
2083	if (pSurface->pMipmapLevels[i].fDirty)
2084	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2085
2086	glTexImage2D(GL_TEXTURE_2D,
2087	i,
2088	pSurface->internalFormatGL,
2089	pSurface->pMipmapLevels[i].size.width,
2090	pSurface->pMipmapLevels[i].size.height,
2091	0,
2092	pSurface->formatGL,
2093	pSurface->typeGL,
2094	pSurface->pMipmapLevels[i].pSurfaceData);
2095
2096	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2097
2098	pSurface->pMipmapLevels[i].fDirty = false;
2099	}
2100	pSurface->fDirty = false;
2101
2102	/* Restore unpacking parameters. */
2103	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2104
2105	/* Restore the old active texture. */
2106	glBindTexture(GL_TEXTURE_2D, activeTexture);
2107	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2108
2109	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2110
2111	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2112	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2113	return VINF_SUCCESS;
2114	}
2115
2116
2117	/**
2118	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2119	*
2120	* @returns VBox status code.
2121	* @param pThis The VGA device instance.
2122	* @param pState The VMSVGA3d state.
2123	* @param pDstSurface The destination host surface.
2124	* @param uDstMipmap The destination mipmap level (valid).
2125	* @param pDstBox The destination box.
2126	* @param pSrcSurface The source host surface.
2127	* @param uSrcMipmap The source mimap level (valid).
2128	* @param pSrcBox The source box.
2129	* @param enmMode The strecht blt mode .
2130	* @param pContext The VMSVGA3d context (already current for OGL).
2131	*/
2132	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2133	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2134	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2135	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2136	{
2137	RT_NOREF(pThis);
2138
2139	/* Activate the read and draw framebuffer objects. */
2140	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2142	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2143	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2144
2145	/* Bind the source and destination objects to the right place. */
2146	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2147	pSrcSurface->oglId.texture, uSrcMipmap);
2148	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2149	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2150	pDstSurface->oglId.texture, uDstMipmap);
2151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2152
2153	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),
2154	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2155	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2156
2157	pState->ext.glBlitFramebuffer(pSrcBox->x,
2158	#ifdef MANUAL_FLIP_SURFACE_DATA
2159	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2160	#else
2161	pSrcBox->y,
2162	#endif
2163	pSrcBox->x + pSrcBox->w, /* exclusive. */
2164	#ifdef MANUAL_FLIP_SURFACE_DATA
2165	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2166	#else
2167	pSrcBox->y + pSrcBox->h,
2168	#endif
2169	pDstBox->x,
2170	#ifdef MANUAL_FLIP_SURFACE_DATA
2171	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2172	#else
2173	pDstBox->y,
2174	#endif
2175	pDstBox->x + pDstBox->w, /* exclusive. */
2176	#ifdef MANUAL_FLIP_SURFACE_DATA
2177	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2178	#else
2179	pDstBox->y + pDstBox->h,
2180	#endif
2181	GL_COLOR_BUFFER_BIT,
2182	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2183	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2184
2185	/* Reset the frame buffer association */
2186	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2187	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2188
2189	return VINF_SUCCESS;
2190	}
2191
2192	/**
2193	* Save texture packing parameters and loads those appropriate for the given
2194	* surface.
2195	*
2196	* @param pState The VMSVGA3D state structure.
2197	* @param pContext The active context.
2198	* @param pSurface The surface.
2199	* @param pSave Where to save stuff.
2200	*/
2201	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2202	PVMSVGAPACKPARAMS pSave)
2203	{
2204	RT_NOREF(pState);
2205	/*
2206	* Save (ignore errors, setting the defaults we want and avoids restore).
2207	*/
2208	pSave->iAlignment = 1;
2209	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2210	pSave->cxRow = 0;
2211	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2212
2213	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2214	pSave->cyImage = 0;
2215	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2216	Assert(pSave->cyImage == 0);
2217
2218	pSave->fSwapBytes = GL_FALSE;
2219	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2220	Assert(pSave->fSwapBytes == GL_FALSE);
2221
2222	pSave->fLsbFirst = GL_FALSE;
2223	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2224	Assert(pSave->fLsbFirst == GL_FALSE);
2225
2226	pSave->cSkipRows = 0;
2227	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2228	Assert(pSave->cSkipRows == 0);
2229
2230	pSave->cSkipPixels = 0;
2231	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2232	Assert(pSave->cSkipPixels == 0);
2233
2234	pSave->cSkipImages = 0;
2235	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2236	Assert(pSave->cSkipImages == 0);
2237
2238	VMSVGA3D_CLEAR_GL_ERRORS();
2239	#endif
2240
2241	/*
2242	* Setup unpack.
2243	*
2244	* Note! We use 1 as alignment here because we currently don't do any
2245	* aligning of line pitches anywhere.
2246	*/
2247	NOREF(pSurface);
2248	if (pSave->iAlignment != 1)
2249	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2250	if (pSave->cxRow != 0)
2251	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2252	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2253	if (pSave->cyImage != 0)
2254	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2255	if (pSave->fSwapBytes != 0)
2256	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2257	if (pSave->fLsbFirst != 0)
2258	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2259	if (pSave->cSkipRows != 0)
2260	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2261	if (pSave->cSkipPixels != 0)
2262	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2263	if (pSave->cSkipImages != 0)
2264	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2265	#endif
2266	}
2267
2268
2269	/**
2270	* Restores texture packing parameters.
2271	*
2272	* @param pState The VMSVGA3D state structure.
2273	* @param pContext The active context.
2274	* @param pSurface The surface.
2275	* @param pSave Where stuff was saved.
2276	*/
2277	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2278	PCVMSVGAPACKPARAMS pSave)
2279	{
2280	RT_NOREF(pState, pSurface);
2281	if (pSave->iAlignment != 1)
2282	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2283	if (pSave->cxRow != 0)
2284	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2285	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2286	if (pSave->cyImage != 0)
2287	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2288	if (pSave->fSwapBytes != 0)
2289	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2290	if (pSave->fLsbFirst != 0)
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2292	if (pSave->cSkipRows != 0)
2293	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2294	if (pSave->cSkipPixels != 0)
2295	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2296	if (pSave->cSkipImages != 0)
2297	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2298	#endif
2299	}
2300
2301
2302	/**
2303	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2304	*
2305	* @returns Failure status code or @a rc.
2306	* @param pThis The VGA device instance data.
2307	* @param pState The VMSVGA3d state.
2308	* @param pSurface The host surface.
2309	* @param uHostMipmap The host mipmap level (valid).
2310	* @param GuestPtr The guest pointer.
2311	* @param cbSrcPitch The guest (?) pitch.
2312	* @param transfer The transfer direction.
2313	* @param pBox The box to copy.
2314	* @param pContext The context (for OpenGL).
2315	* @param rc The current rc for all boxes.
2316	* @param iBox The current box number (for Direct 3D).
2317	*/
2318	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface, uint32_t uHostMipmap,
2319	SVGAGuestPtr GuestPtr, uint32_t cbSrcPitch, SVGA3dTransferType transfer,
2320	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2321	{
2322	RT_NOREF(iBox);
2323	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[uHostMipmap];
2324
2325	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2326	{
2327	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2328	case SVGA3D_SURFACE_HINT_TEXTURE:
2329	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2330	{
2331	uint32_t cbSurfacePitch;
2332	uint8_t pDoubleBuffer, pBufferStart;
2333	unsigned uDestOffset = 0;
2334
2335	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2336	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2337
2338	if (transfer == SVGA3D_READ_HOST_VRAM)
2339	{
2340	GLint activeTexture;
2341
2342	/* Must bind texture to the current context in order to read it. */
2343	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2344	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2345
2346	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2347	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2348
2349	/* Set row length and alignment of the input data. */
2350	VMSVGAPACKPARAMS SavedParams;
2351	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2352
2353	glGetTexImage(GL_TEXTURE_2D,
2354	uHostMipmap,
2355	pSurface->formatGL,
2356	pSurface->typeGL,
2357	pDoubleBuffer);
2358	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2359
2360	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2361
2362	/* Restore the old active texture. */
2363	glBindTexture(GL_TEXTURE_2D, activeTexture);
2364	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2365
2366	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2367	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2368	<= pMipLevel->cbSurface,
2369	RTMemFree(pDoubleBuffer),
2370	VERR_INTERNAL_ERROR);
2371
2372	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2373
2374	#ifdef MANUAL_FLIP_SURFACE_DATA
2375	pBufferStart = pDoubleBuffer
2376	+ pBox->x * pSurface->cbBlock
2377	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2378	- cbSurfacePitch; /* flip image during copy */
2379	#else
2380	pBufferStart = pDoubleBuffer + uDestOffset;
2381	#endif
2382	}
2383	else
2384	{
2385	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2386	#ifdef MANUAL_FLIP_SURFACE_DATA
2387	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2388	#else
2389	pBufferStart = pDoubleBuffer;
2390	#endif
2391	}
2392
2393	rc = vmsvgaGMRTransfer(pThis,
2394	transfer,
2395	pBufferStart,
2396	#ifdef MANUAL_FLIP_SURFACE_DATA
2397	-(int32_t)cbSurfacePitch,
2398	#else
2399	(int32_t)cbSurfacePitch,
2400	#endif
2401	GuestPtr,
2402	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2403	cbSrcPitch,
2404	pBox->w * pSurface->cbBlock,
2405	pBox->h);
2406	AssertRC(rc);
2407
2408	/* Update the opengl surface data. */
2409	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2410	{
2411	GLint activeTexture = 0;
2412
2413	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2414	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2415
2416	/* Must bind texture to the current context in order to change it. */
2417	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2418	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2419
2420	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2421
2422	/* Set row length and alignment of the input data. */
2423	VMSVGAPACKPARAMS SavedParams;
2424	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2425
2426	glTexSubImage2D(GL_TEXTURE_2D,
2427	uHostMipmap,
2428	pBox->x,
2429	pBox->y,
2430	pBox->w,
2431	pBox->h,
2432	pSurface->formatGL,
2433	pSurface->typeGL,
2434	pDoubleBuffer);
2435
2436	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2437
2438	/* Restore old values. */
2439	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2440
2441	/* Restore the old active texture. */
2442	glBindTexture(GL_TEXTURE_2D, activeTexture);
2443	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2444	}
2445
2446	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2447
2448	/* Free the double buffer. */
2449	RTMemFree(pDoubleBuffer);
2450	break;
2451	}
2452
2453	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2454	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2455	break;
2456
2457	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2458	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2459	{
2460	Assert(pBox->h == 1);
2461
2462	VMSVGA3D_CLEAR_GL_ERRORS();
2463	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2464	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2465	{
2466	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2467	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2468	if (RT_LIKELY(pbData != NULL))
2469	{
2470	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2471	GLint cbStrictBufSize;
2472	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2473	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2474	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2475	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2476	#endif
2477
2478	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2479	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2480	<= pMipLevel->cbSurface))
2481	{
2482	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" : "index",
2483	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2484
2485	rc = vmsvgaGMRTransfer(pThis,
2486	transfer,
2487	pbData + offDst,
2488	pMipLevel->cbSurfacePitch,
2489	GuestPtr,
2490	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2491	cbSrcPitch,
2492	pBox->w * pSurface->cbBlock,
2493	pBox->h);
2494	AssertRC(rc);
2495
2496	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
2497	}
2498	else
2499	{
2500	AssertFailed();
2501	rc = VERR_INTERNAL_ERROR;
2502	}
2503
2504	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2505	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2506	}
2507	else
2508	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2509	}
2510	else
2511	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2512	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2513	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2514	break;
2515	}
2516
2517	default:
2518	AssertFailed();
2519	break;
2520	}
2521
2522	return rc;
2523	}
2524
2525
2526	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2527	{
2528	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2529	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));
2530	for (uint32_t i = 0; i < cRects; i++)
2531	{
2532	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2533	}
2534
2535	/** @todo Only screen 0 for now. */
2536	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2537	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2538	/** @todo scaling */
2539	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2540
2541	if (cRects == 0)
2542	{
2543	/* easy case; no clipping */
2544	SVGA3dCopyBox box;
2545	SVGA3dGuestImage dst;
2546
2547	box.x = destRect.left;
2548	box.y = destRect.top;
2549	box.z = 0;
2550	box.w = destRect.right - destRect.left;
2551	box.h = destRect.bottom - destRect.top;
2552	box.d = 1;
2553	box.srcx = srcRect.left;
2554	box.srcy = srcRect.top;
2555	box.srcz = 0;
2556
2557	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2558	dst.ptr.offset = 0;
2559	dst.pitch = pThis->svga.cbScanline;
2560
2561	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2562	AssertRCReturn(rc, rc);
2563
2564	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2565	return VINF_SUCCESS;
2566	}
2567	else
2568	{
2569	SVGA3dGuestImage dst;
2570	SVGA3dCopyBox box;
2571
2572	box.srcz = 0;
2573	box.z = 0;
2574	box.d = 1;
2575
2576	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2577	dst.ptr.offset = 0;
2578	dst.pitch = pThis->svga.cbScanline;
2579
2580	/** @todo merge into one SurfaceDMA call */
2581	for (uint32_t i = 0; i < cRects; i++)
2582	{
2583	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2584	box.srcx = srcRect.left + pRect[i].left;
2585	box.srcy = srcRect.top + pRect[i].top;
2586
2587	box.x = pRect[i].left + destRect.left;
2588	box.y = pRect[i].top + destRect.top;
2589	box.z = 0;
2590	box.w = pRect[i].right - pRect[i].left;
2591	box.h = pRect[i].bottom - pRect[i].top;
2592
2593	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2594	AssertRCReturn(rc, rc);
2595
2596	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2597	}
2598
2599	return VINF_SUCCESS;
2600	}
2601	}
2602
2603	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2604	{
2605	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2606	PVMSVGA3DSURFACE pSurface;
2607	int rc = VINF_SUCCESS;
2608	PVMSVGA3DCONTEXT pContext;
2609	uint32_t cid;
2610	GLint activeTexture = 0;
2611
2612	AssertReturn(pState, VERR_NO_MEMORY);
2613	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2614	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2615
2616	pSurface = pState->papSurfaces[sid];
2617
2618	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2619	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2620	pSurface->autogenFilter = filter;
2621
2622	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2623
2624	cid = SVGA3D_INVALID_ID;
2625	pContext = &pState->SharedCtx;
2626	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2627
2628	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2629	{
2630	/* Unknown surface type; turn it into a texture. */
2631	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
2632	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2633	AssertRCReturn(rc, rc);
2634	}
2635	else
2636	{
2637	/** @todo new filter */
2638	AssertFailed();
2639	}
2640
2641	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2642	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2643
2644	/* Must bind texture to the current context in order to change it. */
2645	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2646	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2647
2648	/* Generate the mip maps. */
2649	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2650	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2651
2652	/* Restore the old texture. */
2653	glBindTexture(GL_TEXTURE_2D, activeTexture);
2654	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2655
2656	return VINF_SUCCESS;
2657	}
2658
2659	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2660	{
2661	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2662	PVMSVGA3DSURFACE pSurface;
2663	PVMSVGA3DCONTEXT pContext;
2664	uint32_t cid;
2665
2666	AssertReturn(pState, VERR_NO_MEMORY);
2667	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2668	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2669
2670	pSurface = pState->papSurfaces[sid];
2671
2672	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2673	for (uint32_t i=0; i < cRects; i++)
2674	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));
2675
2676	pContext = &pState->SharedCtx;
2677	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2678	cid = pContext->id;
2679	VMSVGA3D_CLEAR_GL_ERRORS();
2680
2681	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2682	/*
2683	* Source surface different size?
2684	*/
2685	RTRECT2 srcViewPort;
2686	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2687	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2688	{
2689	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2690	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2691
2692	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2693	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2694	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2695	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2696
2697	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2698	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2699	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2700	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2701	}
2702	else
2703	{
2704	srcViewPort.x = pThis->svga.viewport.x;
2705	srcViewPort.y = pThis->svga.viewport.y;
2706	srcViewPort.cx = pThis->svga.viewport.cx;
2707	srcViewPort.cy = pThis->svga.viewport.cy;
2708	}
2709	RTRECT SrcViewPortRect;
2710	SrcViewPortRect.xLeft = srcViewPort.x;
2711	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2712	SrcViewPortRect.yBottom = srcViewPort.y;
2713	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2714	#endif
2715
2716
2717	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2718	/*
2719	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2720	*/
2721	SVGA3dCopyRect rect;
2722	uint32_t oldVShader, oldPShader;
2723	GLint oldTextureId;
2724
2725	if (cRects == 0)
2726	{
2727	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2728	rect.w = pSurface->pMipmapLevels[0].size.width;
2729	rect.h = pSurface->pMipmapLevels[0].size.height;
2730	pRect = &rect;
2731	cRects = 1;
2732	}
2733
2734	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2735
2736	#if 0
2737	glDisable(GL_CULL_FACE);
2738	glDisable(GL_BLEND);
2739	glDisable(GL_ALPHA_TEST);
2740	glDisable(GL_SCISSOR_TEST);
2741	glDisable(GL_STENCIL_TEST);
2742	glEnable(GL_DEPTH_TEST);
2743	glDepthFunc(GL_ALWAYS);
2744	glDepthMask(GL_TRUE);
2745	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2746	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2747	#endif
2748
2749	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2750
2751	oldVShader = pContext->state.shidVertex;
2752	oldPShader = pContext->state.shidPixel;
2753	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2754	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2755
2756	/* Flush shader changes. */
2757	if (pContext->pShaderContext)
2758	ShaderUpdateState(pContext->pShaderContext, 0);
2759
2760	/* Activate the read and draw framebuffer objects. */
2761	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2762	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2763
2764	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2765	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2766	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2767
2768	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2769	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2770
2771	#if 0
2772	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2773	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2774	#endif
2775
2776	/* Reset the transformation matrices. */
2777	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2778	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2779	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2780	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2781	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2782	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2783	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2784	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2785
2786	for (uint32_t i = 0; i < cRects; i++)
2787	{
2788	float left, right, top, bottom; /* Texture coordinates */
2789	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2790
2791	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2792	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2793	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2794	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2795	pRect[i].w = pThis->svga.viewport.cx;
2796	pRect[i].h = pThis->svga.viewport.cy;
2797
2798	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2799	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2800	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2801	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2802	{
2803	/* Intersection is empty; skip */
2804	continue;
2805	}
2806
2807	left = pRect[i].srcx;
2808	right = pRect[i].srcx + pRect[i].w;
2809	top = pRect[i].srcy + pRect[i].h;
2810	bottom = pRect[i].srcy;
2811
2812	left /= pSurface->pMipmapLevels[0].size.width;
2813	right /= pSurface->pMipmapLevels[0].size.width;
2814	top /= pSurface->pMipmapLevels[0].size.height;
2815	bottom /= pSurface->pMipmapLevels[0].size.height;
2816
2817	vertexLeft = pRect[i].x;
2818	vertexRight = pRect[i].x + pRect[i].w;
2819	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2820	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2821
2822	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2823	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2824	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)));
2825
2826	glBegin(GL_QUADS);
2827
2828	/* bottom left */
2829	glTexCoord2f(left, bottom);
2830	glVertex2i(vertexLeft, vertexBottom);
2831
2832	/* top left */
2833	glTexCoord2f(left, top);
2834	glVertex2i(vertexLeft, vertexTop);
2835
2836	/* top right */
2837	glTexCoord2f(right, top);
2838	glVertex2i(vertexRight, vertexTop);
2839
2840	/* bottom right */
2841	glTexCoord2f(right, bottom);
2842	glVertex2i(vertexRight, vertexBottom);
2843
2844	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2845	}
2846
2847	/* Restore old settings. */
2848	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2849	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2850	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2851	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2852
2853	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2854
2855	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2856	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2857	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2858
2859	#else
2860	/*
2861	* glBlitFramebuffer variant.
2862	*/
2863	/* Activate the read and draw framebuffer objects. */
2864	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2865	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2866	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2867	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2868
2869	/* Bind the source objects to the right place. */
2870	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2871	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2872
2873
2874	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2875	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2876	ASMCompilerBarrier(); /* paranoia */
2877	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2878
2879	/* If there are no recangles specified, just grab a screenful. */
2880	SVGA3dCopyRect DummyRect;
2881	if (cRects != 0)
2882	{ /* likely */ }
2883	else
2884	{
2885	/** @todo Find the usecase for this or check what the original device does.
2886	* The original code was doing some scaling based on the surface
2887	* size... */
2888	# ifdef DEBUG_bird
2889	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2890	# endif
2891	DummyRect.x = DummyRect.srcx = 0;
2892	DummyRect.y = DummyRect.srcy = 0;
2893	DummyRect.w = pThis->svga.uWidth;
2894	DummyRect.h = pThis->svga.uHeight;
2895	cRects = 1;
2896	pRect = &DummyRect;
2897	}
2898
2899	/*
2900	* Blit the surface rectangle(s) to the back buffer.
2901	*/
2902	uint32_t const cxSurface = pSurface->pMipmapLevels[0].size.width;
2903	uint32_t const cySurface = pSurface->pMipmapLevels[0].size.height;
2904	for (uint32_t i = 0; i < cRects; i++)
2905	{
2906	SVGA3dCopyRect ClippedRect = pRect[i];
2907
2908	/*
2909	* Do some sanity checking and limit width and height, all so we
2910	* don't need to think about wrap-arounds below.
2911	*/
2912	if (RT_LIKELY( ClippedRect.w
2913	&& ClippedRect.x < VMSVGA_MAX_X
2914	&& ClippedRect.srcx < VMSVGA_MAX_X
2915	&& ClippedRect.h
2916	&& ClippedRect.y < VMSVGA_MAX_Y
2917	&& ClippedRect.srcy < VMSVGA_MAX_Y
2918	))
2919	{ /* likely */ }
2920	else
2921	continue;
2922
2923	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2924	{ /* likely */ }
2925	else
2926	ClippedRect.w = VMSVGA_MAX_Y;
2927	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2928	{ /* likely */ }
2929	else
2930	ClippedRect.w = VMSVGA_MAX_Y;
2931
2932
2933	/*
2934	* Source surface clipping (paranoia). Straight forward.
2935	*/
2936	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2937	{ /* likely */ }
2938	else
2939	continue;
2940	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2941	{ /* likely */ }
2942	else
2943	{
2944	AssertFailed(); /* remove if annoying. */
2945	ClippedRect.w = cxSurface - ClippedRect.srcx;
2946	}
2947
2948	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2949	{ /* likely */ }
2950	else
2951	continue;
2952	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2953	{ /* likely */ }
2954	else
2955	{
2956	AssertFailed(); /* remove if annoying. */
2957	ClippedRect.h = cySurface - ClippedRect.srcy;
2958	}
2959
2960	/*
2961	* Destination viewport clipping - real PITA.
2962	*
2963	* We have to take the following into account here:
2964	* - The source image is Y inverted.
2965	* - The destination framebuffer is in world and not window coordinates,
2966	* just like the source surface. This means working in the first quadrant.
2967	* - The viewport is in window coordinate, that is fourth quadrant and
2968	* negated Y values.
2969	* - The destination framebuffer is not scrolled, so we have to blit
2970	* what's visible into the top of the framebuffer.
2971	*
2972	*
2973	* To illustrate:
2974	*
2975	* source destination 0123456789
2976	* 8 ^---------- 8 ^---------- 0 ----------->
2977	* 7 \| \| 7 \| \| 1 \| \|
2978	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
2979	* 5 \| *** \| 5 \| * \| 3 \| * \|
2980	* 4 \| * \| => 4 \| * \| => 4 \| * \|
2981	* 3 \| * \| 3 \| * \| 5 \| * \|
2982	* 2 \| ******* \| 2 \| \| 6 \| \|
2983	* 1 \| \| 1 \| \| 7 \| \|
2984	* 0 -----------> 0 -----------> 8 v----------
2985	* 0123456789 0123456789 Destination window
2986	*
2987	* From the above, it follows that a destination viewport given in
2988	* window coordinates matches the source exactly when srcy = srcx = 0.
2989	*
2990	* Example (Y only):
2991	* ySrc = 0
2992	* yDst = 0
2993	* cyCopy = 9
2994	* cyScreen = cyCopy
2995	* cySurface >= cyCopy
2996	* yViewport = 5
2997	* cyViewport = 2 (i.e. '\| *** \|'
2998	* '\| \|' )
2999	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
3000	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
3001	*
3002	* We can see from the illustration that the final result should be:
3003	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3004	* DstRect = (0,2) (11, 4)
3005	*
3006	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3007	* easier to follow:
3008	* SrcRect = (0,5) (11, 7)
3009	*
3010	* From the top, Y values only:
3011	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3012	*
3013	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3014	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3015	* Copy.yDst += cyAdjust = 2;
3016	* Copy.ySrc = unchanged;
3017	* Copy.cx -= cyAdjust = 7;
3018	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3019	*
3020	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3021	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3022	* Copy.yDst = unchanged;
3023	* Copy.ySrc += cyAdjust = 5;
3024	* Copy.cx -= cyAdjust = 2;
3025	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3026	*
3027	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3028	* when the view is resized, moved and otherwise messed with,
3029	* the visible part of the framebuffer is actually the bottom
3030	* one. It's easy to adjust for this, just have to adjust the
3031	* destination rectangle such that yBottom is zero.
3032	*/
3033	/* X - no inversion, so kind of simple. */
3034	if (ClippedRect.x >= DstViewport.x)
3035	{
3036	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3037	{ /* typical */ }
3038	else if (ClippedRect.x < DstViewport.xRight)
3039	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3040	else
3041	continue;
3042	}
3043	else
3044	{
3045	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3046	if (cxAdjust < ClippedRect.w)
3047	{
3048	ClippedRect.w -= cxAdjust;
3049	ClippedRect.x += cxAdjust;
3050	ClippedRect.srcx += cxAdjust;
3051	}
3052	else
3053	continue;
3054
3055	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3056	{ /* typical */ }
3057	else
3058	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3059	}
3060
3061	/* Y - complicated, see above. */
3062	if (ClippedRect.y >= DstViewport.yLowWC)
3063	{
3064	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3065	{ /* typical */ }
3066	else if (ClippedRect.y < DstViewport.yHighWC)
3067	{
3068	/* adjustment #2 */
3069	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3070	ClippedRect.srcy += cyAdjust;
3071	ClippedRect.h -= cyAdjust;
3072	}
3073	else
3074	continue;
3075	}
3076	else
3077	{
3078	/* adjustment #1 */
3079	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3080	if (cyAdjust < ClippedRect.h)
3081	{
3082	ClippedRect.y += cyAdjust;
3083	ClippedRect.h -= cyAdjust;
3084	}
3085	else
3086	continue;
3087
3088	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3089	{ /* typical */ }
3090	else
3091	{
3092	/* adjustment #2 */
3093	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3094	ClippedRect.srcy += cyAdjust;
3095	ClippedRect.h -= cyAdjust;
3096	}
3097	}
3098
3099	/* Calc source rectangle with y flipping wrt destination. */
3100	RTRECT SrcRect;
3101	SrcRect.xLeft = ClippedRect.srcx;
3102	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3103	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3104	SrcRect.yTop = ClippedRect.srcy;
3105
3106	/* Calc destination rectangle. */
3107	RTRECT DstRect;
3108	DstRect.xLeft = ClippedRect.x;
3109	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3110	DstRect.yBottom = ClippedRect.y;
3111	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3112
3113	/* Adjust for viewport. */
3114	DstRect.xLeft -= DstViewport.x;
3115	DstRect.xRight -= DstViewport.x;
3116	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3117	DstRect.yTop -= DstRect.yBottom;
3118	DstRect.yBottom = 0;
3119	# else
3120	DstRect.yBottom += DstViewport.y;
3121	DstRect.yTop += DstViewport.y;
3122	# endif
3123
3124	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3125	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3126	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3127	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3128	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3129	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3130	}
3131
3132	#endif
3133
3134	/*
3135	* Flip the front and back buffers.
3136	*/
3137	#ifdef RT_OS_WINDOWS
3138	BOOL fRef = SwapBuffers(pContext->hdc);
3139	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3140	#elif defined(RT_OS_DARWIN)
3141	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3142	#else
3143	/* show the window if not already done */
3144	if (!pContext->fMapped)
3145	{
3146	XMapWindow(pState->display, pContext->window);
3147	pContext->fMapped = true;
3148	}
3149	/* now swap the buffers, i.e. display the rendering result */
3150	glXSwapBuffers(pState->display, pContext->window);
3151	#endif
3152
3153	/*
3154	* Now we can reset the frame buffer association. Doing it earlier means no
3155	* output on darwin.
3156	*/
3157	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3158	return VINF_SUCCESS;
3159	}
3160
3161	#ifdef RT_OS_LINUX
3162	/**
3163	* X11 event handling thread.
3164	*
3165	* @returns VINF_SUCCESS (ignored)
3166	* @param hThreadSelf thread handle
3167	* @param pvUser pointer to pState structure
3168	*/
3169	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD hThreadSelf, void *pvUser)
3170	{
3171	RT_NOREF(hThreadSelf);
3172	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3173	while (!pState->bTerminate)
3174	{
3175	while (XPending(pState->display) > 0)
3176	{
3177	XEvent event;
3178	XNextEvent(pState->display, &event);
3179
3180	switch (event.type)
3181	{
3182	default:
3183	break;
3184	}
3185	}
3186	/* sleep for 16ms to not burn too many cycles */
3187	RTThreadSleep(16);
3188	}
3189	return VINF_SUCCESS;
3190	}
3191	#endif // RT_OS_LINUX
3192
3193
3194	/**
3195	* Create a new 3d context
3196	*
3197	* @returns VBox status code.
3198	* @param pThis VGA device instance data.
3199	* @param cid Context id
3200	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3201	*/
3202	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3203	{
3204	int rc;
3205	PVMSVGA3DCONTEXT pContext;
3206	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3207
3208	AssertReturn(pState, VERR_NO_MEMORY);
3209	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3210	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3211	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3212	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3213	#endif
3214
3215	Log(("vmsvga3dContextDefine id %x\n", cid));
3216	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3217	if (pState->idTestContext == SVGA_ID_INVALID)
3218	{
3219	pState->idTestContext = 207;
3220	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3221	AssertRCReturn(rc, rc);
3222	}
3223	#endif
3224
3225	if (cid == VMSVGA3D_SHARED_CTX_ID)
3226	pContext = &pState->SharedCtx;
3227	else
3228	{
3229	if (cid >= pState->cContexts)
3230	{
3231	/* Grow the array. */
3232	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3233	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3234	AssertReturn(pvNew, VERR_NO_MEMORY);
3235	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3236	while (pState->cContexts < cNew)
3237	{
3238	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3239	AssertReturn(pContext, VERR_NO_MEMORY);
3240	pContext->id = SVGA3D_INVALID_ID;
3241	pState->papContexts[pState->cContexts++] = pContext;
3242	}
3243	}
3244	/* If one already exists with this id, then destroy it now. */
3245	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3246	vmsvga3dContextDestroy(pThis, cid);
3247
3248	pContext = pState->papContexts[cid];
3249	}
3250
3251	/*
3252	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3253	*/
3254	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3255	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3256	{
3257	pSharedCtx = &pState->SharedCtx;
3258	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3259	{
3260	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3261	AssertLogRelRCReturn(rc, rc);
3262	}
3263	}
3264
3265	/*
3266	* Initialize the context.
3267	*/
3268	memset(pContext, 0, sizeof(*pContext));
3269	pContext->id = cid;
3270	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3271	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3272
3273	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3274	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3275	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3276	pContext->idFramebuffer = OPENGL_INVALID_ID;
3277	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3278	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3279
3280	rc = ShaderContextCreate(&pContext->pShaderContext);
3281	AssertRCReturn(rc, rc);
3282
3283	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3284	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3285
3286	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3287
3288	#ifdef RT_OS_WINDOWS
3289	/* Create a context window. */
3290	CREATESTRUCT cs;
3291	cs.lpCreateParams = NULL;
3292	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3293	# ifdef DEBUG_GFX_WINDOW
3294	cs.lpszName = (char *)RTMemAllocZ(256);
3295	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3296	# else
3297	cs.lpszName = NULL;
3298	# endif
3299	cs.lpszClass = 0;
3300	# ifdef DEBUG_GFX_WINDOW
3301	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3302	# else
3303	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3304	# endif
3305	cs.x = 0;
3306	cs.y = 0;
3307	cs.cx = pThis->svga.uWidth;
3308	cs.cy = pThis->svga.uHeight;
3309	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3310	cs.hMenu = NULL;
3311	cs.hInstance = pState->hInstance;
3312
3313	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3314	AssertRCReturn(rc, rc);
3315
3316	pContext->hdc = GetDC(pContext->hwnd);
3317	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3318
3319	PIXELFORMATDESCRIPTOR pfd = {
3320	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3321	1, /* version number */
3322	PFD_DRAW_TO_WINDOW \| /* support window */
3323	PFD_DOUBLEBUFFER \| /* support double buffering */
3324	PFD_SUPPORT_OPENGL, /* support OpenGL */
3325	PFD_TYPE_RGBA, /* RGBA type */
3326	24, /* 24-bit color depth */
3327	0, 0, 0, 0, 0, 0, /* color bits ignored */
3328	8, /* alpha buffer */
3329	0, /* shift bit ignored */
3330	0, /* no accumulation buffer */
3331	0, 0, 0, 0, /* accum bits ignored */
3332	16, /* set depth buffer */
3333	16, /* set stencil buffer */
3334	0, /* no auxiliary buffer */
3335	PFD_MAIN_PLANE, /* main layer */
3336	0, /* reserved */
3337	0, 0, 0 /* layer masks ignored */
3338	};
3339	int pixelFormat;
3340	BOOL ret;
3341
3342	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3343	/** @todo is this really necessary?? */
3344	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3345	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3346
3347	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3348	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3349
3350	pContext->hglrc = wglCreateContext(pContext->hdc);
3351	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3352
3353	if (pSharedCtx)
3354	{
3355	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3356	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3357	}
3358
3359	#elif defined(RT_OS_DARWIN)
3360	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3361
3362	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3363	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3364	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3365	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3366	pThis->svga.uWidth, pThis->svga.uHeight,
3367	pShareContext, pContext->fOtherProfile);
3368
3369	#else
3370	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3371
3372	if (pState->display == NULL)
3373	{
3374	/* get an X display and make sure we have glX 1.3 */
3375	pState->display = XOpenDisplay(0);
3376	Assert(pState->display);
3377	int glxMajor, glxMinor;
3378	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3379	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3380	/* start our X event handling thread */
3381	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3382	if (RT_FAILURE(rc))
3383	{
3384	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3385	return rc;
3386	}
3387	}
3388	int attrib[] =
3389	{
3390	GLX_RGBA,
3391	GLX_RED_SIZE, 1,
3392	GLX_GREEN_SIZE, 1,
3393	GLX_BLUE_SIZE, 1,
3394	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3395	GLX_DOUBLEBUFFER,
3396	None
3397	};
3398	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3399	XSetWindowAttributes swa;
3400	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3401	swa.border_pixel = 0;
3402	swa.background_pixel = 0;
3403	swa.event_mask = StructureNotifyMask \| ExposureMask;
3404	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3405	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3406	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3407	0, vi->depth, InputOutput,
3408	vi->visual, flags, &swa);
3409	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3410	//uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1); - unused
3411
3412	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3413
3414	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3415	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3416	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3417	#endif
3418
3419	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3420
3421	/* NULL during the first PowerOn call. */
3422	if (pState->ext.glGenFramebuffers)
3423	{
3424	/* Create a framebuffer object for this context. */
3425	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3426	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3427
3428	/* Bind the object to the framebuffer target. */
3429	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3431
3432	/* Create read and draw framebuffer objects for this context. */
3433	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3435
3436	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3437	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3438
3439	}
3440	#if 0
3441	/** @todo move to shader lib!!! */
3442	/* Clear the screen */
3443	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3444
3445	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3446	glClearIndex(0);
3447	glClearDepth(1);
3448	glClearStencil(0xffff);
3449	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3450	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3451	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3452	if (pState->ext.glProvokingVertex)
3453	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3454	/** @todo move to shader lib!!! */
3455	#endif
3456	return VINF_SUCCESS;
3457	}
3458
3459
3460	/**
3461	* Create a new 3d context
3462	*
3463	* @returns VBox status code.
3464	* @param pThis VGA device instance data.
3465	* @param cid Context id
3466	*/
3467	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3468	{
3469	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3470	}
3471
3472	/**
3473	* Destroys a 3d context.
3474	*
3475	* @returns VBox status code.
3476	* @param pThis VGA device instance data.
3477	* @param pContext The context to destroy.
3478	* @param cid Context id
3479	*/
3480	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3481	{
3482	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3483	AssertReturn(pState, VERR_NO_MEMORY);
3484	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3485	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3486	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3487
3488	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3489
3490	/* Destroy all leftover pixel shaders. */
3491	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3492	{
3493	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3494	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3495	}
3496	if (pContext->paPixelShader)
3497	RTMemFree(pContext->paPixelShader);
3498
3499	/* Destroy all leftover vertex shaders. */
3500	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3501	{
3502	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3503	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3504	}
3505	if (pContext->paVertexShader)
3506	RTMemFree(pContext->paVertexShader);
3507
3508	if (pContext->state.paVertexShaderConst)
3509	RTMemFree(pContext->state.paVertexShaderConst);
3510	if (pContext->state.paPixelShaderConst)
3511	RTMemFree(pContext->state.paPixelShaderConst);
3512
3513	if (pContext->pShaderContext)
3514	{
3515	int rc = ShaderContextDestroy(pContext->pShaderContext);
3516	AssertRC(rc);
3517	}
3518
3519	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3520	{
3521	/* Unbind the object from the framebuffer target. */
3522	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3523	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3524	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3525	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3526
3527	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3528	{
3529	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3530	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3531	}
3532	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3533	{
3534	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3535	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3536	}
3537	}
3538	#ifdef RT_OS_WINDOWS
3539	wglMakeCurrent(pContext->hdc, NULL);
3540	wglDeleteContext(pContext->hglrc);
3541	ReleaseDC(pContext->hwnd, pContext->hdc);
3542
3543	/* Destroy the window we've created. */
3544	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3545	AssertRC(rc);
3546	#elif defined(RT_OS_DARWIN)
3547	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3548	#elif defined(RT_OS_LINUX)
3549	glXMakeCurrent(pState->display, None, NULL);
3550	glXDestroyContext(pState->display, pContext->glxContext);
3551	XDestroyWindow(pState->display, pContext->window);
3552	#endif
3553
3554	memset(pContext, 0, sizeof(*pContext));
3555	pContext->id = SVGA3D_INVALID_ID;
3556
3557	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3558	return VINF_SUCCESS;
3559	}
3560
3561	/**
3562	* Destroy an existing 3d context
3563	*
3564	* @returns VBox status code.
3565	* @param pThis VGA device instance data.
3566	* @param cid Context id
3567	*/
3568	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3569	{
3570	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3571	AssertReturn(pState, VERR_WRONG_ORDER);
3572
3573	/*
3574	* Resolve the context and hand it to the common worker function.
3575	*/
3576	if ( cid < pState->cContexts
3577	&& pState->papContexts[cid]->id == cid)
3578	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3579
3580	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3581	return VINF_SUCCESS;
3582	}
3583
3584	/**
3585	* Worker for vmsvga3dChangeMode that resizes a context.
3586	*
3587	* @param pThis The VGA device instance data.
3588	* @param pState The VMSVGA3d state.
3589	* @param pContext The context.
3590	*/
3591	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3592	{
3593	#ifdef RT_OS_WINDOWS
3594	/* Resize the window. */
3595	CREATESTRUCT cs;
3596	RT_ZERO(cs);
3597	cs.cx = pThis->svga.uWidth;
3598	cs.cy = pThis->svga.uHeight;
3599	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3600	AssertRC(rc);
3601
3602	#elif defined(RT_OS_DARWIN)
3603	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3604
3605	#elif defined(RT_OS_LINUX)
3606	XWindowChanges wc;
3607	wc.width = pThis->svga.uWidth;
3608	wc.height = pThis->svga.uHeight;
3609	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3610	#endif
3611	}
3612
3613	/* Handle resize */
3614	int vmsvga3dChangeMode(PVGASTATE pThis)
3615	{
3616	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3617	AssertReturn(pState, VERR_NO_MEMORY);
3618
3619	/* Resize the shared context too. */
3620	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3621	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3622
3623	/* Resize all active contexts. */
3624	for (uint32_t i = 0; i < pState->cContexts; i++)
3625	{
3626	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3627	if (pContext->id != SVGA3D_INVALID_ID)
3628	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3629	}
3630
3631	return VINF_SUCCESS;
3632	}
3633
3634
3635	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3636	{
3637	PVMSVGA3DCONTEXT pContext;
3638	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3639	AssertReturn(pState, VERR_NO_MEMORY);
3640	bool fModelViewChanged = false;
3641
3642	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3643
3644	if ( cid >= pState->cContexts
3645	\|\| pState->papContexts[cid]->id != cid)
3646	{
3647	Log(("vmsvga3dSetTransform invalid context id!\n"));
3648	return VERR_INVALID_PARAMETER;
3649	}
3650	pContext = pState->papContexts[cid];
3651	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3652
3653	/* Save this matrix for vm state save/restore. */
3654	pContext->state.aTransformState[type].fValid = true;
3655	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3656	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3657
3658	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)));
3659	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)));
3660	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)));
3661	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)));
3662
3663	switch (type)
3664	{
3665	case SVGA3D_TRANSFORM_VIEW:
3666	/* View * World = Model View */
3667	glMatrixMode(GL_MODELVIEW);
3668	glLoadMatrixf(matrix);
3669	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3670	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3671	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3672	fModelViewChanged = true;
3673	break;
3674
3675	case SVGA3D_TRANSFORM_PROJECTION:
3676	{
3677	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3678	AssertRCReturn(rc, rc);
3679	break;
3680	}
3681
3682	case SVGA3D_TRANSFORM_TEXTURE0:
3683	glMatrixMode(GL_TEXTURE);
3684	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3685	glLoadMatrixf(matrix);
3686	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3687	break;
3688
3689	case SVGA3D_TRANSFORM_TEXTURE1:
3690	case SVGA3D_TRANSFORM_TEXTURE2:
3691	case SVGA3D_TRANSFORM_TEXTURE3:
3692	case SVGA3D_TRANSFORM_TEXTURE4:
3693	case SVGA3D_TRANSFORM_TEXTURE5:
3694	case SVGA3D_TRANSFORM_TEXTURE6:
3695	case SVGA3D_TRANSFORM_TEXTURE7:
3696	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3697	return VERR_INVALID_PARAMETER;
3698
3699	case SVGA3D_TRANSFORM_WORLD:
3700	/* View * World = Model View */
3701	glMatrixMode(GL_MODELVIEW);
3702	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3703	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3704	else
3705	glLoadIdentity();
3706	glMultMatrixf(matrix);
3707	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3708	fModelViewChanged = true;
3709	break;
3710
3711	case SVGA3D_TRANSFORM_WORLD1:
3712	case SVGA3D_TRANSFORM_WORLD2:
3713	case SVGA3D_TRANSFORM_WORLD3:
3714	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3715	return VERR_INVALID_PARAMETER;
3716
3717	default:
3718	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3719	return VERR_INVALID_PARAMETER;
3720	}
3721
3722	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3723	if (fModelViewChanged)
3724	{
3725	/* Reprogram the clip planes. */
3726	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3727	{
3728	if (pContext->state.aClipPlane[j].fValid == true)
3729	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3730	}
3731
3732	/* Reprogram the light data. */
3733	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3734	{
3735	if (pContext->state.aLightData[j].fValidData == true)
3736	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3737	}
3738	}
3739
3740	return VINF_SUCCESS;
3741	}
3742
3743	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3744	{
3745	PVMSVGA3DCONTEXT pContext;
3746	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3747	AssertReturn(pState, VERR_NO_MEMORY);
3748
3749	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3750
3751	if ( cid >= pState->cContexts
3752	\|\| pState->papContexts[cid]->id != cid)
3753	{
3754	Log(("vmsvga3dSetZRange invalid context id!\n"));
3755	return VERR_INVALID_PARAMETER;
3756	}
3757	pContext = pState->papContexts[cid];
3758	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3759
3760	pContext->state.zRange = zRange;
3761	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3762
3763	if (zRange.min < -1.0)
3764	zRange.min = -1.0;
3765	if (zRange.max > 1.0)
3766	zRange.max = 1.0;
3767
3768	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3769	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3770	return VINF_SUCCESS;
3771	}
3772
3773	/**
3774	* Convert SVGA blend op value to its OpenGL equivalent
3775	*/
3776	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3777	{
3778	switch (blendOp)
3779	{
3780	case SVGA3D_BLENDOP_ZERO:
3781	return GL_ZERO;
3782	case SVGA3D_BLENDOP_ONE:
3783	return GL_ONE;
3784	case SVGA3D_BLENDOP_SRCCOLOR:
3785	return GL_SRC_COLOR;
3786	case SVGA3D_BLENDOP_INVSRCCOLOR:
3787	return GL_ONE_MINUS_SRC_COLOR;
3788	case SVGA3D_BLENDOP_SRCALPHA:
3789	return GL_SRC_ALPHA;
3790	case SVGA3D_BLENDOP_INVSRCALPHA:
3791	return GL_ONE_MINUS_SRC_ALPHA;
3792	case SVGA3D_BLENDOP_DESTALPHA:
3793	return GL_DST_ALPHA;
3794	case SVGA3D_BLENDOP_INVDESTALPHA:
3795	return GL_ONE_MINUS_DST_ALPHA;
3796	case SVGA3D_BLENDOP_DESTCOLOR:
3797	return GL_DST_COLOR;
3798	case SVGA3D_BLENDOP_INVDESTCOLOR:
3799	return GL_ONE_MINUS_DST_COLOR;
3800	case SVGA3D_BLENDOP_SRCALPHASAT:
3801	return GL_SRC_ALPHA_SATURATE;
3802	case SVGA3D_BLENDOP_BLENDFACTOR:
3803	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3804	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3805	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3806	default:
3807	AssertFailed();
3808	return GL_ONE;
3809	}
3810	}
3811
3812	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3813	{
3814	switch (blendEq)
3815	{
3816	case SVGA3D_BLENDEQ_ADD:
3817	return GL_FUNC_ADD;
3818	case SVGA3D_BLENDEQ_SUBTRACT:
3819	return GL_FUNC_SUBTRACT;
3820	case SVGA3D_BLENDEQ_REVSUBTRACT:
3821	return GL_FUNC_REVERSE_SUBTRACT;
3822	case SVGA3D_BLENDEQ_MINIMUM:
3823	return GL_MIN;
3824	case SVGA3D_BLENDEQ_MAXIMUM:
3825	return GL_MAX;
3826	default:
3827	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3828	return GL_FUNC_ADD;
3829	}
3830	}
3831
3832	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3833	{
3834	switch (cmpFunc)
3835	{
3836	case SVGA3D_CMP_NEVER:
3837	return GL_NEVER;
3838	case SVGA3D_CMP_LESS:
3839	return GL_LESS;
3840	case SVGA3D_CMP_EQUAL:
3841	return GL_EQUAL;
3842	case SVGA3D_CMP_LESSEQUAL:
3843	return GL_LEQUAL;
3844	case SVGA3D_CMP_GREATER:
3845	return GL_GREATER;
3846	case SVGA3D_CMP_NOTEQUAL:
3847	return GL_NOTEQUAL;
3848	case SVGA3D_CMP_GREATEREQUAL:
3849	return GL_GEQUAL;
3850	case SVGA3D_CMP_ALWAYS:
3851	return GL_ALWAYS;
3852	default:
3853	AssertFailed();
3854	return GL_LESS;
3855	}
3856	}
3857
3858	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3859	{
3860	switch (stencilOp)
3861	{
3862	case SVGA3D_STENCILOP_KEEP:
3863	return GL_KEEP;
3864	case SVGA3D_STENCILOP_ZERO:
3865	return GL_ZERO;
3866	case SVGA3D_STENCILOP_REPLACE:
3867	return GL_REPLACE;
3868	case SVGA3D_STENCILOP_INCRSAT:
3869	return GL_INCR_WRAP;
3870	case SVGA3D_STENCILOP_DECRSAT:
3871	return GL_DECR_WRAP;
3872	case SVGA3D_STENCILOP_INVERT:
3873	return GL_INVERT;
3874	case SVGA3D_STENCILOP_INCR:
3875	return GL_INCR;
3876	case SVGA3D_STENCILOP_DECR:
3877	return GL_DECR;
3878	default:
3879	AssertFailed();
3880	return GL_KEEP;
3881	}
3882	}
3883
3884	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3885	{
3886	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3887	PVMSVGA3DCONTEXT pContext;
3888	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3889	AssertReturn(pState, VERR_NO_MEMORY);
3890
3891	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3892
3893	if ( cid >= pState->cContexts
3894	\|\| pState->papContexts[cid]->id != cid)
3895	{
3896	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3897	return VERR_INVALID_PARAMETER;
3898	}
3899	pContext = pState->papContexts[cid];
3900	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3901
3902	for (unsigned i = 0; i < cRenderStates; i++)
3903	{
3904	GLenum enableCap = ~(GLenum)0;
3905	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3906	/* Save the render state for vm state saving. */
3907	if (pRenderState[i].state < SVGA3D_RS_MAX)
3908	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3909
3910	switch (pRenderState[i].state)
3911	{
3912	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3913	enableCap = GL_DEPTH_TEST;
3914	val = pRenderState[i].uintValue;
3915	break;
3916
3917	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3918	glDepthMask(!!pRenderState[i].uintValue);
3919	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3920	break;
3921
3922	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3923	enableCap = GL_ALPHA_TEST;
3924	val = pRenderState[i].uintValue;
3925	break;
3926
3927	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3928	enableCap = GL_DITHER;
3929	val = pRenderState[i].uintValue;
3930	break;
3931
3932	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3933	enableCap = GL_FOG;
3934	val = pRenderState[i].uintValue;
3935	break;
3936
3937	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3938	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3939	break;
3940
3941	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3942	enableCap = GL_LIGHTING;
3943	val = pRenderState[i].uintValue;
3944	break;
3945
3946	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3947	/* not applicable */
3948	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3949	break;
3950
3951	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3952	enableCap = GL_POINT_SPRITE_ARB;
3953	val = pRenderState[i].uintValue;
3954	break;
3955
3956	case SVGA3D_RS_POINTSIZE: /* float */
3957	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3958	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3959	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3960	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3961	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3962
3963	glPointSize(pRenderState[i].floatValue);
3964	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3965	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3966	break;
3967
3968	case SVGA3D_RS_POINTSIZEMIN: /* float */
3969	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3970	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3971	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3972	break;
3973
3974	case SVGA3D_RS_POINTSIZEMAX: /* float */
3975	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3976	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3977	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3978	break;
3979
3980	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3981	case SVGA3D_RS_POINTSCALE_A: /* float */
3982	case SVGA3D_RS_POINTSCALE_B: /* float */
3983	case SVGA3D_RS_POINTSCALE_C: /* float */
3984	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3985	break;
3986
3987	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3988	{
3989	GLfloat color[4]; /* red, green, blue, alpha */
3990
3991	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3992
3993	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3994	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3995	break;
3996	}
3997
3998	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3999	{
4000	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
4001	for (uint32_t j = 0; j <= 5; j++)
4002	{
4003	if (pRenderState[i].uintValue & RT_BIT(j))
4004	glEnable(GL_CLIP_PLANE0 + j);
4005	else
4006	glDisable(GL_CLIP_PLANE0 + j);
4007	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4008	}
4009	break;
4010	}
4011
4012	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4013	{
4014	GLfloat color[4]; /* red, green, blue, alpha */
4015
4016	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4017
4018	glFogfv(GL_FOG_COLOR, color);
4019	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4020	break;
4021	}
4022
4023	case SVGA3D_RS_FOGSTART: /* float */
4024	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4025	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4026	break;
4027
4028	case SVGA3D_RS_FOGEND: /* float */
4029	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4031	break;
4032
4033	case SVGA3D_RS_FOGDENSITY: /* float */
4034	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4036	break;
4037
4038	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4039	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4040	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4041	break;
4042
4043	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4044	{
4045	SVGA3dFogMode mode;
4046	mode.uintValue = pRenderState[i].uintValue;
4047
4048	enableCap = GL_FOG_MODE;
4049	switch (mode.s.function)
4050	{
4051	case SVGA3D_FOGFUNC_EXP:
4052	val = GL_EXP;
4053	break;
4054	case SVGA3D_FOGFUNC_EXP2:
4055	val = GL_EXP2;
4056	break;
4057	case SVGA3D_FOGFUNC_LINEAR:
4058	val = GL_LINEAR;
4059	break;
4060	default:
4061	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4062	break;
4063	}
4064
4065	/** @todo how to switch between vertex and pixel fog modes??? */
4066	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4067	#if 0
4068	/* The fog type determines the render state. */
4069	switch (mode.s.type)
4070	{
4071	case SVGA3D_FOGTYPE_VERTEX:
4072	renderState = D3DRS_FOGVERTEXMODE;
4073	break;
4074	case SVGA3D_FOGTYPE_PIXEL:
4075	renderState = D3DRS_FOGTABLEMODE;
4076	break;
4077	default:
4078	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4079	break;
4080	}
4081	#endif
4082
4083	/* Set the fog base to depth or range. */
4084	switch (mode.s.base)
4085	{
4086	case SVGA3D_FOGBASE_DEPTHBASED:
4087	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4088	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4089	break;
4090	case SVGA3D_FOGBASE_RANGEBASED:
4091	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4092	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4093	break;
4094	default:
4095	/* ignore */
4096	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4097	break;
4098	}
4099	break;
4100	}
4101
4102	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4103	{
4104	SVGA3dFillMode mode;
4105
4106	mode.uintValue = pRenderState[i].uintValue;
4107
4108	switch (mode.s.mode)
4109	{
4110	case SVGA3D_FILLMODE_POINT:
4111	val = GL_POINT;
4112	break;
4113	case SVGA3D_FILLMODE_LINE:
4114	val = GL_LINE;
4115	break;
4116	case SVGA3D_FILLMODE_FILL:
4117	val = GL_FILL;
4118	break;
4119	default:
4120	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4121	break;
4122	}
4123	/* @note only front and back faces */
4124	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4125	glPolygonMode(GL_FRONT_AND_BACK, val);
4126	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4127	break;
4128	}
4129
4130	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4131	switch (pRenderState[i].uintValue)
4132	{
4133	case SVGA3D_SHADEMODE_FLAT:
4134	val = GL_FLAT;
4135	break;
4136
4137	case SVGA3D_SHADEMODE_SMOOTH:
4138	val = GL_SMOOTH;
4139	break;
4140
4141	default:
4142	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4143	break;
4144	}
4145
4146	glShadeModel(val);
4147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4148	break;
4149
4150	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4151	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4152	/** @todo */
4153	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4154	/*
4155	renderState = D3DRS_LINEPATTERN;
4156	val = pRenderState[i].uintValue;
4157	*/
4158	break;
4159
4160	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4161	enableCap = GL_LINE_SMOOTH;
4162	val = pRenderState[i].uintValue;
4163	break;
4164
4165	case SVGA3D_RS_LINEWIDTH: /* float */
4166	glLineWidth(pRenderState[i].floatValue);
4167	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4168	break;
4169
4170	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4171	{
4172	/* Refresh the blending state based on the new enable setting. */
4173	SVGA3dRenderState renderstate[2];
4174
4175	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4176	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4177	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4178	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4179
4180	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4181	AssertRCReturn(rc, rc);
4182
4183	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4184	continue; /* ignore if blend is already enabled */
4185	/* no break */
4186	}
4187
4188	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4189	enableCap = GL_BLEND;
4190	val = pRenderState[i].uintValue;
4191	break;
4192
4193	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4194	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4195	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4196	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4197	{
4198	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4199	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4200
4201	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4203	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4205	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4206	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4207	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4208	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4209
4210	switch (pRenderState[i].state)
4211	{
4212	case SVGA3D_RS_SRCBLEND:
4213	srcRGB = blendop;
4214	break;
4215	case SVGA3D_RS_DSTBLEND:
4216	dstRGB = blendop;
4217	break;
4218	case SVGA3D_RS_SRCBLENDALPHA:
4219	srcAlpha = blendop;
4220	break;
4221	case SVGA3D_RS_DSTBLENDALPHA:
4222	dstAlpha = blendop;
4223	break;
4224	default:
4225	/* not possible; shut up gcc */
4226	AssertFailed();
4227	break;
4228	}
4229
4230	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4231	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4232	else
4233	glBlendFunc(srcRGB, dstRGB);
4234	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4235	break;
4236	}
4237
4238	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4239	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4240	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4241	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4242	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4243	else
4244	{
4245	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4246	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4247	#else
4248	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4249	#endif
4250	}
4251	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4252	break;
4253
4254	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4255	{
4256	GLfloat red, green, blue, alpha;
4257
4258	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4259
4260	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4261	glBlendColor(red, green, blue, alpha);
4262	#else
4263	pState->ext.glBlendColor(red, green, blue, alpha);
4264	#endif
4265	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4266	break;
4267	}
4268
4269	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4270	{
4271	GLenum mode = GL_BACK; /* default for OpenGL */
4272
4273	switch (pRenderState[i].uintValue)
4274	{
4275	case SVGA3D_FACE_NONE:
4276	break;
4277	case SVGA3D_FACE_FRONT:
4278	mode = GL_FRONT;
4279	break;
4280	case SVGA3D_FACE_BACK:
4281	mode = GL_BACK;
4282	break;
4283	case SVGA3D_FACE_FRONT_BACK:
4284	mode = GL_FRONT_AND_BACK;
4285	break;
4286	default:
4287	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4288	break;
4289	}
4290	enableCap = GL_CULL_FACE;
4291	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4292	{
4293	glCullFace(mode);
4294	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4295	val = 1;
4296	}
4297	else
4298	val = 0;
4299	break;
4300	}
4301
4302	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4303	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4304	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4305	break;
4306
4307	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4308	{
4309	GLclampf ref;
4310
4311	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4312	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4313	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4314	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4315	break;
4316	}
4317
4318	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4319	{
4320	GLint func;
4321
4322	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4323	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4324	glAlphaFunc(func, pRenderState[i].floatValue);
4325	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4326	break;
4327	}
4328
4329	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4330	enableCap = GL_STENCIL_TEST;
4331	val = pRenderState[i].uintValue;
4332	break;
4333
4334	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4335	case SVGA3D_RS_STENCILREF: /* uint32_t */
4336	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4337	{
4338	GLint func, ref;
4339	GLuint mask;
4340
4341	glGetIntegerv(GL_STENCIL_FUNC, &func);
4342	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4343	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4344	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4345	glGetIntegerv(GL_STENCIL_REF, &ref);
4346	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4347
4348	switch (pRenderState[i].state)
4349	{
4350	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4351	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4352	break;
4353
4354	case SVGA3D_RS_STENCILREF: /* uint32_t */
4355	ref = pRenderState[i].uintValue;
4356	break;
4357
4358	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4359	mask = pRenderState[i].uintValue;
4360	break;
4361
4362	default:
4363	/* not possible; shut up gcc */
4364	AssertFailed();
4365	break;
4366	}
4367
4368	glStencilFunc(func, ref, mask);
4369	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4370	break;
4371	}
4372
4373	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4374	glStencilMask(pRenderState[i].uintValue);
4375	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4376	break;
4377
4378	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4379	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4380	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4381	{
4382	GLint sfail, dpfail, dppass;
4383	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4384
4385	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4387	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4388	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4389	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4391
4392	switch (pRenderState[i].state)
4393	{
4394	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4395	sfail = stencilop;
4396	break;
4397	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4398	dpfail = stencilop;
4399	break;
4400	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4401	dppass = stencilop;
4402	break;
4403	default:
4404	/* not possible; shut up gcc */
4405	AssertFailed();
4406	break;
4407	}
4408	glStencilOp(sfail, dpfail, dppass);
4409	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4410	break;
4411	}
4412
4413	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4414	/* @note GL_EXT_stencil_two_side required! */
4415	if (pState->ext.fEXT_stencil_two_side)
4416	{
4417	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4418	val = pRenderState[i].uintValue;
4419	}
4420	else
4421	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4422	break;
4423
4424	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4425	{
4426	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4427	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4428	*/
4429	GLint ref;
4430	GLuint mask;
4431
4432	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4433	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4434	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4435	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4436
4437	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4438	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4439	break;
4440	}
4441
4442	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4443	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4444	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4445	{
4446	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4447	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4448	*/
4449	GLint sfail, dpfail, dppass;
4450	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4451
4452	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4454	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4455	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4456	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4457	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4458
4459	switch (pRenderState[i].state)
4460	{
4461	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4462	sfail = stencilop;
4463	break;
4464	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4465	dpfail = stencilop;
4466	break;
4467	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4468	dppass = stencilop;
4469	break;
4470	default:
4471	/* not possible; shut up gcc */
4472	AssertFailed();
4473	break;
4474	}
4475	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4476	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4477	break;
4478	}
4479
4480	case SVGA3D_RS_ZBIAS: /* float */
4481	/** @todo unknown meaning; depth bias is not identical
4482	renderState = D3DRS_DEPTHBIAS;
4483	val = pRenderState[i].uintValue;
4484	*/
4485	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4486	break;
4487
4488	case SVGA3D_RS_DEPTHBIAS: /* float */
4489	{
4490	GLfloat factor;
4491
4492	/** @todo not sure if the d3d & ogl definitions are identical. */
4493
4494	/* Do not change the factor part. */
4495	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4496	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4497
4498	glPolygonOffset(factor, pRenderState[i].floatValue);
4499	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4500	break;
4501	}
4502
4503	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4504	{
4505	GLfloat units;
4506
4507	/** @todo not sure if the d3d & ogl definitions are identical. */
4508
4509	/* Do not change the factor part. */
4510	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4511	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4512
4513	glPolygonOffset(pRenderState[i].floatValue, units);
4514	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4515	break;
4516	}
4517
4518	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4519	{
4520	GLboolean red, green, blue, alpha;
4521	SVGA3dColorMask mask;
4522
4523	mask.uintValue = pRenderState[i].uintValue;
4524
4525	red = mask.s.red;
4526	green = mask.s.green;
4527	blue = mask.s.blue;
4528	alpha = mask.s.alpha;
4529
4530	glColorMask(red, green, blue, alpha);
4531	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4532	break;
4533	}
4534
4535	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4536	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4537	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4538	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4539	break;
4540
4541	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4542	enableCap = GL_SCISSOR_TEST;
4543	val = pRenderState[i].uintValue;
4544	break;
4545
4546	#if 0
4547	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4548	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4549	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4550	val = pRenderState[i].uintValue;
4551	break;
4552
4553	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4554	renderState = D3DRS_SPECULARMATERIALSOURCE;
4555	val = pRenderState[i].uintValue;
4556	break;
4557
4558	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4559	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4560	val = pRenderState[i].uintValue;
4561	break;
4562
4563	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4564	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4565	val = pRenderState[i].uintValue;
4566	break;
4567	#endif
4568
4569	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4570	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4571	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4572	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4573	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4574	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4575	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4576	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4577	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4578	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4579	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4580	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4581	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4582	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4583	break;
4584
4585	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4586	case SVGA3D_RS_TWEENFACTOR: /* float */
4587	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4588	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4589	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4590	break;
4591
4592	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4593	enableCap = GL_MULTISAMPLE;
4594	val = pRenderState[i].uintValue;
4595	break;
4596
4597	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4598	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4599	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4600	break;
4601
4602	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4603	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4604	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4605	/*
4606	renderState = D3DRS_COORDINATETYPE;
4607	val = pRenderState[i].uintValue;
4608	*/
4609	break;
4610
4611	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4612	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4613	/* Invert the selected mode because of y-inversion (?) */
4614	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4616	break;
4617
4618	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4619	//AssertFailed();
4620	/*
4621	D3DRS_SRGBWRITEENABLE ??
4622	renderState = D3DRS_OUTPUTGAMMA;
4623	val = pRenderState[i].uintValue;
4624	*/
4625	break;
4626
4627	#if 0
4628
4629	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4630	//AssertFailed();
4631	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4632	val = pRenderState[i].uintValue;
4633	break;
4634
4635	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4636	renderState = D3DRS_TEXTUREFACTOR;
4637	val = pRenderState[i].uintValue;
4638	break;
4639
4640	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4641	renderState = D3DRS_LOCALVIEWER;
4642	val = pRenderState[i].uintValue;
4643	break;
4644
4645	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4646	AssertFailed();
4647	/*
4648	renderState = D3DRS_ZVISIBLE;
4649	val = pRenderState[i].uintValue;
4650	*/
4651	break;
4652
4653	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4654	renderState = D3DRS_CLIPPING;
4655	val = pRenderState[i].uintValue;
4656	break;
4657
4658	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4659	glTexParameter GL_TEXTURE_WRAP_S
4660	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4661	renderState = D3DRS_WRAP0;
4662	val = pRenderState[i].uintValue;
4663	break;
4664
4665	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4666	glTexParameter GL_TEXTURE_WRAP_T
4667	renderState = D3DRS_WRAP1;
4668	val = pRenderState[i].uintValue;
4669	break;
4670
4671	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4672	glTexParameter GL_TEXTURE_WRAP_R
4673	renderState = D3DRS_WRAP2;
4674	val = pRenderState[i].uintValue;
4675	break;
4676
4677
4678	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4679	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4680	val = pRenderState[i].uintValue;
4681	break;
4682
4683
4684	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4685	renderState = D3DRS_BLENDOPALPHA;
4686	val = pRenderState[i].uintValue;
4687	break;
4688
4689	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4690	AssertFailed();
4691	/*
4692	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4693	val = pRenderState[i].uintValue;
4694	*/
4695	break;
4696
4697	#endif
4698	default:
4699	AssertFailed();
4700	break;
4701	}
4702
4703	if (enableCap != ~(GLenum)0)
4704	{
4705	if (val)
4706	glEnable(enableCap);
4707	else
4708	glDisable(enableCap);
4709	}
4710	}
4711
4712	return VINF_SUCCESS;
4713	}
4714
4715	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4716	{
4717	PVMSVGA3DCONTEXT pContext;
4718	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4719	PVMSVGA3DSURFACE pRenderTarget;
4720
4721	AssertReturn(pState, VERR_NO_MEMORY);
4722	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4723	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4724
4725	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4726
4727	if ( cid >= pState->cContexts
4728	\|\| pState->papContexts[cid]->id != cid)
4729	{
4730	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4731	return VERR_INVALID_PARAMETER;
4732	}
4733	pContext = pState->papContexts[cid];
4734	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4735
4736	/* Save for vm state save/restore. */
4737	pContext->state.aRenderTargets[type] = target.sid;
4738
4739	if (target.sid == SVGA3D_INVALID_ID)
4740	{
4741	/* Disable render target. */
4742	switch (type)
4743	{
4744	case SVGA3D_RT_DEPTH:
4745	case SVGA3D_RT_STENCIL:
4746	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4747	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4748	break;
4749
4750	case SVGA3D_RT_COLOR0:
4751	case SVGA3D_RT_COLOR1:
4752	case SVGA3D_RT_COLOR2:
4753	case SVGA3D_RT_COLOR3:
4754	case SVGA3D_RT_COLOR4:
4755	case SVGA3D_RT_COLOR5:
4756	case SVGA3D_RT_COLOR6:
4757	case SVGA3D_RT_COLOR7:
4758	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4759	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4760	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4761	break;
4762
4763	default:
4764	AssertFailedReturn(VERR_INVALID_PARAMETER);
4765	}
4766	return VINF_SUCCESS;
4767	}
4768
4769	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4770	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4771	pRenderTarget = pState->papSurfaces[target.sid];
4772
4773	switch (type)
4774	{
4775	case SVGA3D_RT_DEPTH:
4776	case SVGA3D_RT_STENCIL:
4777	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4778	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4779	{
4780	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
4781	pContext = &pState->SharedCtx;
4782	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4783
4784	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4785	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4786
4787	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4788	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4789
4790	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4791	pRenderTarget->internalFormatGL,
4792	pRenderTarget->pMipmapLevels[0].size.width,
4793	pRenderTarget->pMipmapLevels[0].size.height);
4794	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4795
4796	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4797	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4798
4799	pContext = pState->papContexts[cid];
4800	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4801	pRenderTarget->idWeakContextAssociation = cid;
4802	}
4803
4804	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4805	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4806	Assert(!pRenderTarget->fDirty);
4807	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4808
4809	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4810
4811	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4812	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4813	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4814	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4815	break;
4816
4817	case SVGA3D_RT_COLOR0:
4818	case SVGA3D_RT_COLOR1:
4819	case SVGA3D_RT_COLOR2:
4820	case SVGA3D_RT_COLOR3:
4821	case SVGA3D_RT_COLOR4:
4822	case SVGA3D_RT_COLOR5:
4823	case SVGA3D_RT_COLOR6:
4824	case SVGA3D_RT_COLOR7:
4825	{
4826	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4827	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4828	{
4829	Log(("vmsvga3dSetRenderTarget: create texture to be used as render target; surface id=%x type=%d format=%d -> create texture\n", target.sid, pRenderTarget->flags, pRenderTarget->format));
4830	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4831	AssertRCReturn(rc, rc);
4832	}
4833
4834	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4835	Assert(!pRenderTarget->fDirty);
4836
4837	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4838
4839	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4840	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4841
4842	pContext->sidRenderTarget = target.sid;
4843
4844	#ifdef DEBUG
4845	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4846	if (status != GL_FRAMEBUFFER_COMPLETE)
4847	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4848	#endif
4849	/** @todo use glDrawBuffers too? */
4850	break;
4851	}
4852
4853	default:
4854	AssertFailedReturn(VERR_INVALID_PARAMETER);
4855	}
4856
4857	return VINF_SUCCESS;
4858	}
4859
4860	#if 0
4861	/**
4862	* Convert SVGA texture combiner value to its D3D equivalent
4863	*/
4864	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4865	{
4866	switch (value)
4867	{
4868	case SVGA3D_TC_DISABLE:
4869	return D3DTOP_DISABLE;
4870	case SVGA3D_TC_SELECTARG1:
4871	return D3DTOP_SELECTARG1;
4872	case SVGA3D_TC_SELECTARG2:
4873	return D3DTOP_SELECTARG2;
4874	case SVGA3D_TC_MODULATE:
4875	return D3DTOP_MODULATE;
4876	case SVGA3D_TC_ADD:
4877	return D3DTOP_ADD;
4878	case SVGA3D_TC_ADDSIGNED:
4879	return D3DTOP_ADDSIGNED;
4880	case SVGA3D_TC_SUBTRACT:
4881	return D3DTOP_SUBTRACT;
4882	case SVGA3D_TC_BLENDTEXTUREALPHA:
4883	return D3DTOP_BLENDTEXTUREALPHA;
4884	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4885	return D3DTOP_BLENDDIFFUSEALPHA;
4886	case SVGA3D_TC_BLENDCURRENTALPHA:
4887	return D3DTOP_BLENDCURRENTALPHA;
4888	case SVGA3D_TC_BLENDFACTORALPHA:
4889	return D3DTOP_BLENDFACTORALPHA;
4890	case SVGA3D_TC_MODULATE2X:
4891	return D3DTOP_MODULATE2X;
4892	case SVGA3D_TC_MODULATE4X:
4893	return D3DTOP_MODULATE4X;
4894	case SVGA3D_TC_DSDT:
4895	AssertFailed(); /** @todo ??? */
4896	return D3DTOP_DISABLE;
4897	case SVGA3D_TC_DOTPRODUCT3:
4898	return D3DTOP_DOTPRODUCT3;
4899	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4900	return D3DTOP_BLENDTEXTUREALPHAPM;
4901	case SVGA3D_TC_ADDSIGNED2X:
4902	return D3DTOP_ADDSIGNED2X;
4903	case SVGA3D_TC_ADDSMOOTH:
4904	return D3DTOP_ADDSMOOTH;
4905	case SVGA3D_TC_PREMODULATE:
4906	return D3DTOP_PREMODULATE;
4907	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4908	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4909	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4910	return D3DTOP_MODULATECOLOR_ADDALPHA;
4911	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4912	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4913	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4914	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4915	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4916	return D3DTOP_BUMPENVMAPLUMINANCE;
4917	case SVGA3D_TC_MULTIPLYADD:
4918	return D3DTOP_MULTIPLYADD;
4919	case SVGA3D_TC_LERP:
4920	return D3DTOP_LERP;
4921	default:
4922	AssertFailed();
4923	return D3DTOP_DISABLE;
4924	}
4925	}
4926
4927	/**
4928	* Convert SVGA texture arg data value to its D3D equivalent
4929	*/
4930	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4931	{
4932	switch (value)
4933	{
4934	case SVGA3D_TA_CONSTANT:
4935	return D3DTA_CONSTANT;
4936	case SVGA3D_TA_PREVIOUS:
4937	return D3DTA_CURRENT; /* current = previous */
4938	case SVGA3D_TA_DIFFUSE:
4939	return D3DTA_DIFFUSE;
4940	case SVGA3D_TA_TEXTURE:
4941	return D3DTA_TEXTURE;
4942	case SVGA3D_TA_SPECULAR:
4943	return D3DTA_SPECULAR;
4944	default:
4945	AssertFailed();
4946	return 0;
4947	}
4948	}
4949
4950	/**
4951	* Convert SVGA texture transform flag value to its D3D equivalent
4952	*/
4953	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4954	{
4955	switch (value)
4956	{
4957	case SVGA3D_TEX_TRANSFORM_OFF:
4958	return D3DTTFF_DISABLE;
4959	case SVGA3D_TEX_TRANSFORM_S:
4960	return D3DTTFF_COUNT1; /** @todo correct? */
4961	case SVGA3D_TEX_TRANSFORM_T:
4962	return D3DTTFF_COUNT2; /** @todo correct? */
4963	case SVGA3D_TEX_TRANSFORM_R:
4964	return D3DTTFF_COUNT3; /** @todo correct? */
4965	case SVGA3D_TEX_TRANSFORM_Q:
4966	return D3DTTFF_COUNT4; /** @todo correct? */
4967	case SVGA3D_TEX_PROJECTED:
4968	return D3DTTFF_PROJECTED;
4969	default:
4970	AssertFailed();
4971	return 0;
4972	}
4973	}
4974	#endif
4975
4976	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4977	{
4978	switch (value)
4979	{
4980	case SVGA3D_TEX_ADDRESS_WRAP:
4981	return GL_REPEAT;
4982	case SVGA3D_TEX_ADDRESS_MIRROR:
4983	return GL_MIRRORED_REPEAT;
4984	case SVGA3D_TEX_ADDRESS_CLAMP:
4985	return GL_CLAMP_TO_EDGE;
4986	case SVGA3D_TEX_ADDRESS_BORDER:
4987	return GL_CLAMP_TO_BORDER;
4988	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4989	AssertFailed();
4990	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4991
4992	case SVGA3D_TEX_ADDRESS_EDGE:
4993	case SVGA3D_TEX_ADDRESS_INVALID:
4994	default:
4995	AssertFailed();
4996	return GL_REPEAT; /* default */
4997	}
4998	}
4999
5000	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
5001	{
5002	switch (value)
5003	{
5004	case SVGA3D_TEX_FILTER_NONE:
5005	case SVGA3D_TEX_FILTER_LINEAR:
5006	return GL_LINEAR;
5007	case SVGA3D_TEX_FILTER_NEAREST:
5008	return GL_NEAREST;
5009	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5010	/** @todo */
5011	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5012	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5013	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5014	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5015	default:
5016	AssertFailed();
5017	return GL_LINEAR; /* default */
5018	}
5019	}
5020
5021	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5022	{
5023	/* flip the red and blue bytes */
5024	uint8_t blue = value & 0xff;
5025	uint8_t red = (value >> 16) & 0xff;
5026	return (value & 0xff00ff00) \| red \| (blue << 16);
5027	}
5028
5029	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5030	{
5031	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5032	GLenum currentStage = ~(GLenum)0;
5033	PVMSVGA3DCONTEXT pContext;
5034	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5035	AssertReturn(pState, VERR_NO_MEMORY);
5036
5037	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5038
5039	if ( cid >= pState->cContexts
5040	\|\| pState->papContexts[cid]->id != cid)
5041	{
5042	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5043	return VERR_INVALID_PARAMETER;
5044	}
5045	pContext = pState->papContexts[cid];
5046	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5047
5048	for (unsigned i = 0; i < cTextureStates; i++)
5049	{
5050	GLenum textureType = ~(GLenum)0;
5051	#if 0
5052	GLenum samplerType = ~(GLenum)0;
5053	#endif
5054
5055	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));
5056	/* Record the texture state for vm state saving. */
5057	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5058	&& pTextureState[i].name < SVGA3D_TS_MAX)
5059	{
5060	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5061	}
5062
5063	/* Active the right texture unit for subsequent texture state changes. */
5064	if (pTextureState[i].stage != currentStage \|\| i == 0)
5065	{
5066	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5067	* size of aSidActiveTexture and for binding/unbinding we cannot exceed it. */
5068	if (pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE)
5069	{
5070	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5071	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5072	currentStage = pTextureState[i].stage;
5073	}
5074	else
5075	{
5076	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5077	continue;
5078	}
5079	}
5080
5081	switch (pTextureState[i].name)
5082	{
5083	case SVGA3D_TS_BUMPENVMAT00: /* float */
5084	case SVGA3D_TS_BUMPENVMAT01: /* float */
5085	case SVGA3D_TS_BUMPENVMAT10: /* float */
5086	case SVGA3D_TS_BUMPENVMAT11: /* float */
5087	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5088	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5089	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5090	break;
5091
5092	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5093	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5094	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5095	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5096	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5097	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5098	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5099	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5100	/** @todo not used by MesaGL */
5101	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5102	break;
5103	#if 0
5104
5105	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5106	textureType = D3DTSS_TEXCOORDINDEX;
5107	val = pTextureState[i].value;
5108	break;
5109
5110	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5111	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5112	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5113	break;
5114	#endif
5115
5116	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5117	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5118	{
5119	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5120	currentStage, pTextureState[i].value, pContext->aSidActiveTexture[currentStage]));
5121
5122	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5123	/* Unselect the currently associated texture. */
5124	glBindTexture(GL_TEXTURE_2D, 0);
5125	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5126	/* Necessary for the fixed pipeline. */
5127	glDisable(GL_TEXTURE_2D);
5128	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5129	}
5130	else
5131	{
5132	uint32_t sid = pTextureState[i].value;
5133
5134	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5135	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5136
5137	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5138
5139	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5140	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width,
5141	pSurface->pMipmapLevels[0].size.height, pContext->aSidActiveTexture[currentStage]));
5142
5143	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5144	{
5145	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5146	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5147	AssertRCReturn(rc, rc);
5148	}
5149
5150	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5152
5153	/* Necessary for the fixed pipeline. */
5154	glEnable(GL_TEXTURE_2D);
5155	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5156
5157	if (pContext->aSidActiveTexture[currentStage] != sid)
5158	{
5159	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5160	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5161	{
5162	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5163	{
5164	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5165
5166	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5167	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5168	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5169	}
5170	}
5171	}
5172	pContext->aSidActiveTexture[currentStage] = sid;
5173	}
5174	/* Finished; continue with the next one. */
5175	continue;
5176
5177	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5178	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5179	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5180	break;
5181
5182	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5183	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5184	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5185	break;
5186
5187	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5188	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5189	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5190	break;
5191
5192	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5193	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5194	{
5195	uint32_t mipFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MIPFILTER].value;
5196	uint32_t minFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MINFILTER].value;
5197
5198	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5199	textureType = GL_TEXTURE_MIN_FILTER;
5200	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5201	{
5202	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5203	{
5204	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5205	val = GL_NEAREST_MIPMAP_LINEAR;
5206	else
5207	val = GL_NEAREST_MIPMAP_NEAREST;
5208	}
5209	else
5210	{
5211	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5212	val = GL_LINEAR_MIPMAP_LINEAR;
5213	else
5214	val = GL_LINEAR_MIPMAP_NEAREST;
5215	}
5216	}
5217	else
5218	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5219	break;
5220	}
5221
5222	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5223	textureType = GL_TEXTURE_MAG_FILTER;
5224	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5225	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5226	break;
5227
5228	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5229	{
5230	GLfloat color[4]; /* red, green, blue, alpha */
5231
5232	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5233
5234	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5235	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5236	break;
5237	}
5238
5239	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5240	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5241	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5242	break;
5243
5244	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5245	textureType = GL_TEXTURE_BASE_LEVEL;
5246	val = pTextureState[i].value;
5247	break;
5248
5249	#if 0
5250	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5251	samplerType = D3DSAMP_MAXANISOTROPY;
5252	val = pTextureState[i].value; /* Identical?? */
5253	break;
5254
5255	case SVGA3D_TS_GAMMA: /* float */
5256	samplerType = D3DSAMP_SRGBTEXTURE;
5257	/* Boolean in D3D */
5258	if (pTextureState[i].floatValue == 1.0f)
5259	val = FALSE;
5260	else
5261	val = TRUE;
5262	break;
5263	#endif
5264	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5265	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5266	AssertFailed();
5267	break;
5268
5269	default:
5270	//AssertFailed();
5271	break;
5272	}
5273
5274	if (textureType != ~(GLenum)0)
5275	{
5276	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5277	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5278	}
5279	}
5280
5281	return VINF_SUCCESS;
5282	}
5283
5284	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5285	{
5286	PVMSVGA3DCONTEXT pContext;
5287	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5288	AssertReturn(pState, VERR_NO_MEMORY);
5289	GLenum oglFace;
5290
5291	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5292
5293	if ( cid >= pState->cContexts
5294	\|\| pState->papContexts[cid]->id != cid)
5295	{
5296	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5297	return VERR_INVALID_PARAMETER;
5298	}
5299	pContext = pState->papContexts[cid];
5300	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5301
5302	switch (face)
5303	{
5304	case SVGA3D_FACE_NONE:
5305	case SVGA3D_FACE_FRONT:
5306	oglFace = GL_FRONT;
5307	break;
5308
5309	case SVGA3D_FACE_BACK:
5310	oglFace = GL_BACK;
5311	break;
5312
5313	case SVGA3D_FACE_FRONT_BACK:
5314	oglFace = GL_FRONT_AND_BACK;
5315	break;
5316
5317	default:
5318	AssertFailedReturn(VERR_INVALID_PARAMETER);
5319	}
5320
5321	/* Save for vm state save/restore. */
5322	pContext->state.aMaterial[face].fValid = true;
5323	pContext->state.aMaterial[face].material = *pMaterial;
5324	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5325
5326	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5327	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5328	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5329	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5330	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5331	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5332
5333	return VINF_SUCCESS;
5334	}
5335
5336	/** @todo Move into separate library as we are using logic from Wine here. */
5337	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5338	{
5339	PVMSVGA3DCONTEXT pContext;
5340	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5341	AssertReturn(pState, VERR_NO_MEMORY);
5342	float QuadAttenuation;
5343
5344	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5345
5346	if ( cid >= pState->cContexts
5347	\|\| pState->papContexts[cid]->id != cid)
5348	{
5349	Log(("vmsvga3dSetLightData invalid context id!\n"));
5350	return VERR_INVALID_PARAMETER;
5351	}
5352	pContext = pState->papContexts[cid];
5353	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5354
5355	/* Store for vm state save/restore */
5356	if (index < SVGA3D_MAX_LIGHTS)
5357	{
5358	pContext->state.aLightData[index].fValidData = true;
5359	pContext->state.aLightData[index].data = *pData;
5360	}
5361	else
5362	AssertFailed();
5363
5364	if ( pData->attenuation0 < 0.0f
5365	\|\| pData->attenuation1 < 0.0f
5366	\|\| pData->attenuation2 < 0.0f)
5367	{
5368	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5369	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5370	}
5371
5372	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5373	glMatrixMode(GL_MODELVIEW);
5374	glPushMatrix();
5375	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5376
5377	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5378	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5379	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5380
5381	if (pData->range * pData->range >= FLT_MIN)
5382	QuadAttenuation = 1.4f / (pData->range * pData->range);
5383	else
5384	QuadAttenuation = 0.0f;
5385
5386	switch (pData->type)
5387	{
5388	case SVGA3D_LIGHTTYPE_POINT:
5389	{
5390	GLfloat position[4];
5391
5392	position[0] = pData->position[0];
5393	position[1] = pData->position[1];
5394	position[2] = pData->position[2];
5395	position[3] = 1.0f;
5396
5397	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5398	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5399
5400	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5401	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5402
5403	/* Attenuation - Are these right? guessing... */
5404	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5405	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5406
5407	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5408	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5409
5410	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5411	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5412
5413	/** @todo range */
5414	break;
5415	}
5416
5417	case SVGA3D_LIGHTTYPE_SPOT1:
5418	{
5419	GLfloat exponent;
5420	GLfloat position[4];
5421	const GLfloat pi = 4.0f * atanf(1.0f);
5422
5423	position[0] = pData->position[0];
5424	position[1] = pData->position[1];
5425	position[2] = pData->position[2];
5426	position[3] = 1.0f;
5427
5428	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5429	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5430
5431	position[0] = pData->direction[0];
5432	position[1] = pData->direction[1];
5433	position[2] = pData->direction[2];
5434	position[3] = 1.0f;
5435
5436	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5437	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5438
5439	/*
5440	* opengl-ish and d3d-ish spot lights use too different models for the
5441	* light "intensity" as a function of the angle towards the main light direction,
5442	* so we only can approximate very roughly.
5443	* however spot lights are rather rarely used in games (if ever used at all).
5444	* furthermore if still used, probably nobody pays attention to such details.
5445	*/
5446	if (pData->falloff == 0)
5447	{
5448	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5449	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5450	* will always be 1.0 for both of them, and we don't have to care for the
5451	* rest of the rather complex calculation
5452	*/
5453	exponent = 0.0f;
5454	}
5455	else
5456	{
5457	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5458	if (rho < 0.0001f)
5459	rho = 0.0001f;
5460	exponent = -0.3f/log(cos(rho/2));
5461	}
5462	if (exponent > 128.0f)
5463	exponent = 128.0f;
5464
5465	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5466	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5467
5468	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5469	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5470
5471	/* Attenuation - Are these right? guessing... */
5472	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5473	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5474
5475	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5476	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5477
5478	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5479	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5480
5481	/** @todo range */
5482	break;
5483	}
5484
5485	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5486	{
5487	GLfloat position[4];
5488
5489	position[0] = -pData->direction[0];
5490	position[1] = -pData->direction[1];
5491	position[2] = -pData->direction[2];
5492	position[3] = 0.0f;
5493
5494	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5495	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5496
5497	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5498	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5499
5500	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5501	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5502	break;
5503	}
5504
5505	case SVGA3D_LIGHTTYPE_SPOT2:
5506	default:
5507	Log(("Unsupported light type!!\n"));
5508	return VERR_INVALID_PARAMETER;
5509	}
5510
5511	/* Restore the modelview matrix */
5512	glPopMatrix();
5513
5514	return VINF_SUCCESS;
5515	}
5516
5517	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5518	{
5519	PVMSVGA3DCONTEXT pContext;
5520	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5521	AssertReturn(pState, VERR_NO_MEMORY);
5522
5523	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5524
5525	if ( cid >= pState->cContexts
5526	\|\| pState->papContexts[cid]->id != cid)
5527	{
5528	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5529	return VERR_INVALID_PARAMETER;
5530	}
5531	pContext = pState->papContexts[cid];
5532	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5533
5534	/* Store for vm state save/restore */
5535	if (index < SVGA3D_MAX_LIGHTS)
5536	pContext->state.aLightData[index].fEnabled = !!enabled;
5537	else
5538	AssertFailed();
5539
5540	if (enabled)
5541	{
5542	/* Load the default settings if none have been set yet. */
5543	if (!pContext->state.aLightData[index].fValidData)
5544	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5545	glEnable(GL_LIGHT0 + index);
5546	}
5547	else
5548	glDisable(GL_LIGHT0 + index);
5549
5550	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5551	return VINF_SUCCESS;
5552	}
5553
5554	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5555	{
5556	PVMSVGA3DCONTEXT pContext;
5557	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5558	AssertReturn(pState, VERR_NO_MEMORY);
5559
5560	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5561
5562	if ( cid >= pState->cContexts
5563	\|\| pState->papContexts[cid]->id != cid)
5564	{
5565	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5566	return VERR_INVALID_PARAMETER;
5567	}
5568	pContext = pState->papContexts[cid];
5569	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5570
5571	/* Save for vm state save/restore. */
5572	pContext->state.RectViewPort = *pRect;
5573	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5574
5575	/** @todo y-inversion for partial viewport coordinates? */
5576	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5577	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5578
5579	/* Reset the projection matrix as that relies on the viewport setting. */
5580	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5581	{
5582	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5583	}
5584	else
5585	{
5586	float matrix[16];
5587
5588	/* identity matrix if no matrix set. */
5589	memset(matrix, 0, sizeof(matrix));
5590	matrix[0] = 1.0;
5591	matrix[5] = 1.0;
5592	matrix[10] = 1.0;
5593	matrix[15] = 1.0;
5594	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5595	}
5596
5597	return VINF_SUCCESS;
5598	}
5599
5600	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5601	{
5602	PVMSVGA3DCONTEXT pContext;
5603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5604	AssertReturn(pState, VERR_NO_MEMORY);
5605	double oglPlane[4];
5606
5607	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)));
5608	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5609
5610	if ( cid >= pState->cContexts
5611	\|\| pState->papContexts[cid]->id != cid)
5612	{
5613	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5614	return VERR_INVALID_PARAMETER;
5615	}
5616	pContext = pState->papContexts[cid];
5617	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5618
5619	/* Store for vm state save/restore. */
5620	pContext->state.aClipPlane[index].fValid = true;
5621	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5622
5623	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5624	oglPlane[0] = (double)plane[0];
5625	oglPlane[1] = (double)plane[1];
5626	oglPlane[2] = (double)plane[2];
5627	oglPlane[3] = (double)plane[3];
5628
5629	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5630	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5631
5632	return VINF_SUCCESS;
5633	}
5634
5635	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5636	{
5637	PVMSVGA3DCONTEXT pContext;
5638	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5639	AssertReturn(pState, VERR_NO_MEMORY);
5640
5641	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5642
5643	if ( cid >= pState->cContexts
5644	\|\| pState->papContexts[cid]->id != cid)
5645	{
5646	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5647	return VERR_INVALID_PARAMETER;
5648	}
5649	pContext = pState->papContexts[cid];
5650	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5651
5652	/* Store for vm state save/restore. */
5653	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5654	pContext->state.RectScissor = *pRect;
5655
5656	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5657	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5658
5659	return VINF_SUCCESS;
5660	}
5661
5662	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5663	{
5664	/* Convert byte color components to float (0-1.0) */
5665	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5666	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5667	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5668	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5669	}
5670
5671	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5672	uint32_t cRects, SVGA3dRect *pRect)
5673	{
5674	GLbitfield mask = 0;
5675	PVMSVGA3DCONTEXT pContext;
5676	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5677	AssertReturn(pState, VERR_NO_MEMORY);
5678	GLboolean fDepthWriteEnabled = GL_FALSE;
5679
5680	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));
5681
5682	if ( cid >= pState->cContexts
5683	\|\| pState->papContexts[cid]->id != cid)
5684	{
5685	Log(("vmsvga3dCommandClear invalid context id!\n"));
5686	return VERR_INVALID_PARAMETER;
5687	}
5688	pContext = pState->papContexts[cid];
5689	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5690
5691	if (clearFlag & SVGA3D_CLEAR_COLOR)
5692	{
5693	GLfloat red, green, blue, alpha;
5694
5695	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5696
5697	/* Set the color clear value. */
5698	glClearColor(red, green, blue, alpha);
5699
5700	mask \|= GL_COLOR_BUFFER_BIT;
5701	}
5702	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5703	{
5704	/** @todo possibly the same problem as with glDepthMask */
5705	glClearStencil(stencil);
5706	mask \|= GL_STENCIL_BUFFER_BIT;
5707	}
5708	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5709	{
5710	glClearDepth((GLdouble)depth);
5711	mask \|= GL_DEPTH_BUFFER_BIT;
5712
5713	/* glClear will not clear the depth buffer if writing is disabled. */
5714	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5715	if (fDepthWriteEnabled == GL_FALSE)
5716	glDepthMask(GL_TRUE);
5717	}
5718
5719	if (cRects)
5720	{
5721	/* Save the current scissor test bit and scissor box. */
5722	glPushAttrib(GL_SCISSOR_BIT);
5723	glEnable(GL_SCISSOR_TEST);
5724	for (unsigned i=0; i < cRects; i++)
5725	{
5726	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));
5727	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5728	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5729	glClear(mask);
5730	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5731	}
5732	/* Restore the old scissor test bit and box */
5733	glPopAttrib();
5734	}
5735	else
5736	{
5737	glClear(mask);
5738	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5739	}
5740
5741	/* Restore depth write state. */
5742	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5743	&& fDepthWriteEnabled == GL_FALSE)
5744	glDepthMask(GL_FALSE);
5745
5746	return VINF_SUCCESS;
5747	}
5748
5749	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5750	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5751	{
5752	normalized = GL_FALSE;
5753	switch (identity.type)
5754	{
5755	case SVGA3D_DECLTYPE_FLOAT1:
5756	size = 1;
5757	type = GL_FLOAT;
5758	break;
5759	case SVGA3D_DECLTYPE_FLOAT2:
5760	size = 2;
5761	type = GL_FLOAT;
5762	break;
5763	case SVGA3D_DECLTYPE_FLOAT3:
5764	size = 3;
5765	type = GL_FLOAT;
5766	break;
5767	case SVGA3D_DECLTYPE_FLOAT4:
5768	size = 4;
5769	type = GL_FLOAT;
5770	break;
5771
5772	case SVGA3D_DECLTYPE_D3DCOLOR:
5773	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5774	type = GL_UNSIGNED_BYTE;
5775	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5776	break;
5777
5778	case SVGA3D_DECLTYPE_UBYTE4N:
5779	normalized = GL_TRUE;
5780	/* no break */
5781	case SVGA3D_DECLTYPE_UBYTE4:
5782	size = 4;
5783	type = GL_UNSIGNED_BYTE;
5784	break;
5785
5786	case SVGA3D_DECLTYPE_SHORT2N:
5787	normalized = GL_TRUE;
5788	/* no break */
5789	case SVGA3D_DECLTYPE_SHORT2:
5790	size = 2;
5791	type = GL_SHORT;
5792	break;
5793
5794	case SVGA3D_DECLTYPE_SHORT4N:
5795	normalized = GL_TRUE;
5796	/* no break */
5797	case SVGA3D_DECLTYPE_SHORT4:
5798	size = 4;
5799	type = GL_SHORT;
5800	break;
5801
5802	case SVGA3D_DECLTYPE_USHORT4N:
5803	normalized = GL_TRUE;
5804	size = 4;
5805	type = GL_UNSIGNED_SHORT;
5806	break;
5807
5808	case SVGA3D_DECLTYPE_USHORT2N:
5809	normalized = GL_TRUE;
5810	size = 2;
5811	type = GL_UNSIGNED_SHORT;
5812	break;
5813
5814	case SVGA3D_DECLTYPE_UDEC3:
5815	size = 3;
5816	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5817	break;
5818
5819	case SVGA3D_DECLTYPE_DEC3N:
5820	normalized = true;
5821	size = 3;
5822	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5823	break;
5824
5825	case SVGA3D_DECLTYPE_FLOAT16_2:
5826	size = 2;
5827	type = GL_HALF_FLOAT;
5828	break;
5829	case SVGA3D_DECLTYPE_FLOAT16_4:
5830	size = 4;
5831	type = GL_HALF_FLOAT;
5832	break;
5833	default:
5834	AssertFailedReturn(VERR_INVALID_PARAMETER);
5835	}
5836
5837	//pVertexElement->Method = identity.method;
5838	//pVertexElement->Usage = identity.usage;
5839
5840	return VINF_SUCCESS;
5841	}
5842
5843	/* Convert VMWare primitive type to its OpenGL equivalent. */
5844	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5845	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5846	{
5847	switch (PrimitiveType)
5848	{
5849	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5850	*pMode = GL_TRIANGLES;
5851	pcVertices = cPrimitiveCount 3;
5852	break;
5853	case SVGA3D_PRIMITIVE_POINTLIST:
5854	*pMode = GL_POINTS;
5855	*pcVertices = cPrimitiveCount;
5856	break;
5857	case SVGA3D_PRIMITIVE_LINELIST:
5858	*pMode = GL_LINES;
5859	pcVertices = cPrimitiveCount 2;
5860	break;
5861	case SVGA3D_PRIMITIVE_LINESTRIP:
5862	*pMode = GL_LINE_STRIP;
5863	*pcVertices = cPrimitiveCount + 1;
5864	break;
5865	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5866	*pMode = GL_TRIANGLE_STRIP;
5867	*pcVertices = cPrimitiveCount + 2;
5868	break;
5869	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5870	*pMode = GL_TRIANGLE_FAN;
5871	*pcVertices = cPrimitiveCount + 2;
5872	break;
5873	default:
5874	return VERR_INVALID_PARAMETER;
5875	}
5876	return VINF_SUCCESS;
5877	}
5878
5879	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5880	{
5881	int rc;
5882
5883	/* Reset the view matrix (also takes the world matrix into account). */
5884	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5885	{
5886	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5887	}
5888	else
5889	{
5890	float matrix[16];
5891
5892	/* identity matrix if no matrix set. */
5893	memset(matrix, 0, sizeof(matrix));
5894	matrix[0] = 1.0;
5895	matrix[5] = 1.0;
5896	matrix[10] = 1.0;
5897	matrix[15] = 1.0;
5898	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5899	}
5900
5901	/* Reset the projection matrix. */
5902	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5903	{
5904	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5905	}
5906	else
5907	{
5908	float matrix[16];
5909
5910	/* identity matrix if no matrix set. */
5911	memset(matrix, 0, sizeof(matrix));
5912	matrix[0] = 1.0;
5913	matrix[5] = 1.0;
5914	matrix[10] = 1.0;
5915	matrix[15] = 1.0;
5916	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5917	}
5918	AssertRC(rc);
5919	return rc;
5920	}
5921
5922	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5923	{
5924	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5925	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5926	PVMSVGA3DSURFACE pVertexSurface;
5927
5928	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5929	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5930
5931	pVertexSurface = pState->papSurfaces[sidVertex];
5932	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5933
5934	/* Create and/or bind the vertex buffer. */
5935	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5936	{
5937	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5938	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5939	pContext = &pState->SharedCtx;
5940	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5941
5942	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5943	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5944
5945	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5946	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5947
5948	Assert(pVertexSurface->fDirty);
5949	/** @todo rethink usage dynamic/static */
5950	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5951	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5952
5953	pVertexSurface->pMipmapLevels[0].fDirty = false;
5954	pVertexSurface->fDirty = false;
5955
5956	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5957
5958	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5959	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5960
5961	pContext = pSavedCtx;
5962	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5963	}
5964
5965	Assert(pVertexSurface->fDirty == false);
5966	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5967	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5968
5969	/* Setup the vertex declarations. */
5970	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5971	{
5972	GLint size;
5973	GLenum type;
5974	GLboolean normalized;
5975	GLuint index = iVertexDeclBase + iVertex;
5976
5977	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));
5978
5979	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5980	AssertRCReturn(rc, rc);
5981
5982	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5983	{
5984	/* Use numbered vertex arrays when shaders are active. */
5985	pState->ext.glEnableVertexAttribArray(index);
5986	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5987	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5988	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5989	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5990	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5991	}
5992	else
5993	{
5994	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5995	switch (pVertexDecl[iVertex].identity.usage)
5996	{
5997	case SVGA3D_DECLUSAGE_POSITIONT:
5998	case SVGA3D_DECLUSAGE_POSITION:
5999	{
6000	glEnableClientState(GL_VERTEX_ARRAY);
6001	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6002	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
6003	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6004	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6005	break;
6006	}
6007	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6008	AssertFailed();
6009	break;
6010	case SVGA3D_DECLUSAGE_BLENDINDICES:
6011	AssertFailed();
6012	break;
6013	case SVGA3D_DECLUSAGE_NORMAL:
6014	glEnableClientState(GL_NORMAL_ARRAY);
6015	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6016	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6017	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6018	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6019	break;
6020	case SVGA3D_DECLUSAGE_PSIZE:
6021	AssertFailed();
6022	break;
6023	case SVGA3D_DECLUSAGE_TEXCOORD:
6024	/* Specify the affected texture unit. */
6025	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6026	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6027	#else
6028	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6029	#endif
6030	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6031	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6032	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6033	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6034	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6035	break;
6036	case SVGA3D_DECLUSAGE_TANGENT:
6037	AssertFailed();
6038	break;
6039	case SVGA3D_DECLUSAGE_BINORMAL:
6040	AssertFailed();
6041	break;
6042	case SVGA3D_DECLUSAGE_TESSFACTOR:
6043	AssertFailed();
6044	break;
6045	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6046	glEnableClientState(GL_COLOR_ARRAY);
6047	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6048	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6049	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6051	break;
6052	case SVGA3D_DECLUSAGE_FOG:
6053	glEnableClientState(GL_FOG_COORD_ARRAY);
6054	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6055	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6056	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6057	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6058	break;
6059	case SVGA3D_DECLUSAGE_DEPTH:
6060	AssertFailed();
6061	break;
6062	case SVGA3D_DECLUSAGE_SAMPLE:
6063	AssertFailed();
6064	break;
6065	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6066	}
6067	}
6068
6069	#ifdef LOG_ENABLED
6070	if (pVertexDecl[iVertex].array.stride == 0)
6071	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6072	#endif
6073	}
6074
6075	return VINF_SUCCESS;
6076	}
6077
6078	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6079	{
6080	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6081
6082	/* Clean up the vertex declarations. */
6083	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6084	{
6085	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6086	{
6087	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6088	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6089	vmsvga3dResetTransformMatrices(pThis, pContext);
6090	}
6091
6092	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6093	{
6094	/* Use numbered vertex arrays when shaders are active. */
6095	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6096	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6097	}
6098	else
6099	{
6100	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6101	switch (pVertexDecl[iVertex].identity.usage)
6102	{
6103	case SVGA3D_DECLUSAGE_POSITION:
6104	case SVGA3D_DECLUSAGE_POSITIONT:
6105	glDisableClientState(GL_VERTEX_ARRAY);
6106	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6107	break;
6108	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6109	break;
6110	case SVGA3D_DECLUSAGE_BLENDINDICES:
6111	break;
6112	case SVGA3D_DECLUSAGE_NORMAL:
6113	glDisableClientState(GL_NORMAL_ARRAY);
6114	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6115	break;
6116	case SVGA3D_DECLUSAGE_PSIZE:
6117	break;
6118	case SVGA3D_DECLUSAGE_TEXCOORD:
6119	/* Specify the affected texture unit. */
6120	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6121	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6122	#else
6123	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6124	#endif
6125	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6126	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6127	break;
6128	case SVGA3D_DECLUSAGE_TANGENT:
6129	break;
6130	case SVGA3D_DECLUSAGE_BINORMAL:
6131	break;
6132	case SVGA3D_DECLUSAGE_TESSFACTOR:
6133	break;
6134	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6135	glDisableClientState(GL_COLOR_ARRAY);
6136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6137	break;
6138	case SVGA3D_DECLUSAGE_FOG:
6139	glDisableClientState(GL_FOG_COORD_ARRAY);
6140	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6141	break;
6142	case SVGA3D_DECLUSAGE_DEPTH:
6143	break;
6144	case SVGA3D_DECLUSAGE_SAMPLE:
6145	break;
6146	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6147	}
6148	}
6149	}
6150	/* Unbind the vertex buffer after usage. */
6151	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6152	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6153	return VINF_SUCCESS;
6154	}
6155
6156	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6157	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6158	SVGA3dVertexDivisor *pVertexDivisor)
6159	{
6160	RT_NOREF(pVertexDivisor);
6161	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6162	AssertReturn(pState, VERR_INTERNAL_ERROR);
6163	PVMSVGA3DCONTEXT pContext;
6164	int rc = VERR_NOT_IMPLEMENTED;
6165	uint32_t iCurrentVertex;
6166
6167	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6168
6169	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6170	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6171	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6172	/** @todo Non-zero cVertexDivisor */
6173	Assert(!cVertexDivisor);
6174
6175	if ( cid >= pState->cContexts
6176	\|\| pState->papContexts[cid]->id != cid)
6177	{
6178	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6179	return VERR_INVALID_PARAMETER;
6180	}
6181	pContext = pState->papContexts[cid];
6182	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6183
6184	/* Check for pretransformed vertex declarations. */
6185	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6186	{
6187	switch (pVertexDecl[iVertex].identity.usage)
6188	{
6189	case SVGA3D_DECLUSAGE_POSITIONT:
6190	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6191	case SVGA3D_DECLUSAGE_POSITION:
6192	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6193	pContext->state.RectViewPort.h,
6194	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6195	break;
6196	default: /* Shut up MSC. */ break;
6197	}
6198	}
6199
6200	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6201	if (pContext->pShaderContext)
6202	{
6203	uint32_t rtHeight = 0;
6204
6205	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6206	{
6207	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
6208	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6209	}
6210
6211	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6212	}
6213
6214	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6215	iCurrentVertex = 0;
6216	while (iCurrentVertex < numVertexDecls)
6217	{
6218	uint32_t sidVertex = SVGA_ID_INVALID;
6219	uint32_t iVertex;
6220
6221	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6222	{
6223	if ( sidVertex != SVGA_ID_INVALID
6224	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6225	)
6226	break;
6227	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6228	}
6229
6230	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6231	AssertRCReturn(rc, rc);
6232
6233	iCurrentVertex = iVertex;
6234	}
6235
6236	/* Now draw the primitives. */
6237	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6238	{
6239	GLenum modeDraw;
6240	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6241	PVMSVGA3DSURFACE pIndexSurface = NULL;
6242	unsigned cVertices;
6243
6244	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6245	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6246	if (RT_FAILURE(rc))
6247	{
6248	AssertRC(rc);
6249	goto internal_error;
6250	}
6251
6252	if (sidIndex != SVGA3D_INVALID_ID)
6253	{
6254	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6255
6256	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6257	\|\| sidIndex >= pState->cSurfaces
6258	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6259	{
6260	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6261	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6262	rc = VERR_INVALID_PARAMETER;
6263	goto internal_error;
6264	}
6265	pIndexSurface = pState->papSurfaces[sidIndex];
6266	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6267
6268	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6269	{
6270	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6271	pContext = &pState->SharedCtx;
6272	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6273
6274	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6275	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6276
6277	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6278	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6279
6280	Assert(pIndexSurface->fDirty);
6281
6282	/** @todo rethink usage dynamic/static */
6283	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6284	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6285
6286	pIndexSurface->pMipmapLevels[0].fDirty = false;
6287	pIndexSurface->fDirty = false;
6288
6289	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6290
6291	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6292	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6293
6294	pContext = pState->papContexts[cid];
6295	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6296	}
6297	Assert(pIndexSurface->fDirty == false);
6298
6299	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6300	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6301	}
6302
6303	if (!pIndexSurface)
6304	{
6305	/* Render without an index buffer */
6306	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6307	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6308	}
6309	else
6310	{
6311	GLenum indexType;
6312
6313	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6314	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6315
6316	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6317	{
6318	indexType = GL_UNSIGNED_BYTE;
6319	}
6320	else
6321	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6322	{
6323	indexType = GL_UNSIGNED_SHORT;
6324	}
6325	else
6326	{
6327	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6328	indexType = GL_UNSIGNED_INT;
6329	}
6330
6331	/* Render with an index buffer */
6332	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));
6333	if (pRange[iPrimitive].indexBias == 0)
6334	glDrawElements(modeDraw,
6335	cVertices,
6336	indexType,
6337	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6338	else
6339	pState->ext.glDrawElementsBaseVertex(modeDraw,
6340	cVertices,
6341	indexType,
6342	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6343	pRange[iPrimitive].indexBias); /* basevertex */
6344
6345	/* Unbind the index buffer after usage. */
6346	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6347	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6348	}
6349	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6350	}
6351
6352	internal_error:
6353
6354	/* Deactivate the vertex declarations. */
6355	iCurrentVertex = 0;
6356	while (iCurrentVertex < numVertexDecls)
6357	{
6358	uint32_t sidVertex = SVGA_ID_INVALID;
6359	uint32_t iVertex;
6360
6361	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6362	{
6363	if ( sidVertex != SVGA_ID_INVALID
6364	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6365	)
6366	break;
6367	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6368	}
6369
6370	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6371	AssertRCReturn(rc, rc);
6372
6373	iCurrentVertex = iVertex;
6374	}
6375	#ifdef DEBUG
6376	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6377	{
6378	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6379	{
6380	GLint activeTexture = 0;
6381	GLint activeTextureUnit = 0;
6382
6383	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6384	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6385	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6386	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6387
6388	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6389	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6390	pState->ext.glActiveTexture(activeTextureUnit);
6391	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6392
6393	# 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. */
6394	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6395	{
6396	PVMSVGA3DSURFACE pTexture;
6397	pTexture = pState->papSurfaces[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6398
6399	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6400	}
6401	# else
6402	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTexture[i]];
6403	AssertMsg(pTexture->id == pContext->aSidActiveTexture[i], ("%x vs %x\n", pTexture->id == pContext->aSidActiveTexture[i]));
6404	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6405	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6406	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTexture[i]));
6407	# endif
6408	}
6409	}
6410	#endif
6411
6412	#ifdef DEBUG_GFX_WINDOW
6413	if (pContext->sidRenderTarget)
6414	{
6415	SVGA3dCopyRect rect;
6416
6417	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6418	rect.w = pContext->state.RectViewPort.w;
6419	rect.h = pContext->state.RectViewPort.h;
6420	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6421	}
6422	#endif
6423
6424	return rc;
6425	}
6426
6427
6428	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6429	{
6430	PVMSVGA3DCONTEXT pContext;
6431	PVMSVGA3DSHADER pShader;
6432	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6433	AssertReturn(pState, VERR_NO_MEMORY);
6434	int rc;
6435
6436	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6437	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6438
6439	if ( cid >= pState->cContexts
6440	\|\| pState->papContexts[cid]->id != cid)
6441	{
6442	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6443	return VERR_INVALID_PARAMETER;
6444	}
6445	pContext = pState->papContexts[cid];
6446	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6447
6448	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6449	if (type == SVGA3D_SHADERTYPE_VS)
6450	{
6451	if (shid >= pContext->cVertexShaders)
6452	{
6453	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6454	AssertReturn(pvNew, VERR_NO_MEMORY);
6455	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6456	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6457	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6458	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6459	pContext->cVertexShaders = shid + 1;
6460	}
6461	/* If one already exists with this id, then destroy it now. */
6462	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6463	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6464
6465	pShader = &pContext->paVertexShader[shid];
6466	}
6467	else
6468	{
6469	Assert(type == SVGA3D_SHADERTYPE_PS);
6470	if (shid >= pContext->cPixelShaders)
6471	{
6472	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6473	AssertReturn(pvNew, VERR_NO_MEMORY);
6474	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6475	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6476	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6477	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6478	pContext->cPixelShaders = shid + 1;
6479	}
6480	/* If one already exists with this id, then destroy it now. */
6481	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6482	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6483
6484	pShader = &pContext->paPixelShader[shid];
6485	}
6486
6487	memset(pShader, 0, sizeof(*pShader));
6488	pShader->id = shid;
6489	pShader->cid = cid;
6490	pShader->type = type;
6491	pShader->cbData = cbData;
6492	pShader->pShaderProgram = RTMemAllocZ(cbData);
6493	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6494	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6495
6496	#ifdef DUMP_SHADER_DISASSEMBLY
6497	LPD3DXBUFFER pDisassembly;
6498	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6499	if (hr == D3D_OK)
6500	{
6501	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6502	pDisassembly->Release();
6503	}
6504	#endif
6505
6506	switch (type)
6507	{
6508	case SVGA3D_SHADERTYPE_VS:
6509	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6510	break;
6511
6512	case SVGA3D_SHADERTYPE_PS:
6513	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6514	break;
6515
6516	default:
6517	AssertFailedReturn(VERR_INVALID_PARAMETER);
6518	}
6519	if (rc != VINF_SUCCESS)
6520	{
6521	RTMemFree(pShader->pShaderProgram);
6522	memset(pShader, 0, sizeof(*pShader));
6523	pShader->id = SVGA3D_INVALID_ID;
6524	}
6525
6526	return rc;
6527	}
6528
6529	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6530	{
6531	PVMSVGA3DCONTEXT pContext;
6532	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6533	AssertReturn(pState, VERR_NO_MEMORY);
6534	PVMSVGA3DSHADER pShader = NULL;
6535	int rc;
6536
6537	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6538
6539	if ( cid >= pState->cContexts
6540	\|\| pState->papContexts[cid]->id != cid)
6541	{
6542	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6543	return VERR_INVALID_PARAMETER;
6544	}
6545	pContext = pState->papContexts[cid];
6546	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6547
6548	if (type == SVGA3D_SHADERTYPE_VS)
6549	{
6550	if ( shid < pContext->cVertexShaders
6551	&& pContext->paVertexShader[shid].id == shid)
6552	{
6553	pShader = &pContext->paVertexShader[shid];
6554	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6555	AssertRC(rc);
6556	}
6557	}
6558	else
6559	{
6560	Assert(type == SVGA3D_SHADERTYPE_PS);
6561	if ( shid < pContext->cPixelShaders
6562	&& pContext->paPixelShader[shid].id == shid)
6563	{
6564	pShader = &pContext->paPixelShader[shid];
6565	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6566	AssertRC(rc);
6567	}
6568	}
6569
6570	if (pShader)
6571	{
6572	if (pShader->pShaderProgram)
6573	RTMemFree(pShader->pShaderProgram);
6574	memset(pShader, 0, sizeof(*pShader));
6575	pShader->id = SVGA3D_INVALID_ID;
6576	}
6577	else
6578	AssertFailedReturn(VERR_INVALID_PARAMETER);
6579
6580	return VINF_SUCCESS;
6581	}
6582
6583	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6584	{
6585	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6586	AssertReturn(pState, VERR_NO_MEMORY);
6587	int rc;
6588
6589	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6590
6591	if ( !pContext
6592	&& cid < pState->cContexts
6593	&& pState->papContexts[cid]->id == cid)
6594	pContext = pState->papContexts[cid];
6595	else if (!pContext)
6596	{
6597	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6598	Log(("vmsvga3dShaderSet invalid context id!\n"));
6599	return VERR_INVALID_PARAMETER;
6600	}
6601	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6602
6603	if (type == SVGA3D_SHADERTYPE_VS)
6604	{
6605	/* Save for vm state save/restore. */
6606	pContext->state.shidVertex = shid;
6607	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6608
6609	if ( shid < pContext->cVertexShaders
6610	&& pContext->paVertexShader[shid].id == shid)
6611	{
6612	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6613	Assert(type == pShader->type);
6614
6615	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6616	AssertRCReturn(rc, rc);
6617	}
6618	else
6619	if (shid == SVGA_ID_INVALID)
6620	{
6621	/* Unselect shader. */
6622	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6623	AssertRCReturn(rc, rc);
6624	}
6625	else
6626	AssertFailedReturn(VERR_INVALID_PARAMETER);
6627	}
6628	else
6629	{
6630	/* Save for vm state save/restore. */
6631	pContext->state.shidPixel = shid;
6632	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6633
6634	Assert(type == SVGA3D_SHADERTYPE_PS);
6635	if ( shid < pContext->cPixelShaders
6636	&& pContext->paPixelShader[shid].id == shid)
6637	{
6638	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6639	Assert(type == pShader->type);
6640
6641	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6642	AssertRCReturn(rc, rc);
6643	}
6644	else
6645	if (shid == SVGA_ID_INVALID)
6646	{
6647	/* Unselect shader. */
6648	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6649	AssertRCReturn(rc, rc);
6650	}
6651	else
6652	AssertFailedReturn(VERR_INVALID_PARAMETER);
6653	}
6654
6655	return VINF_SUCCESS;
6656	}
6657
6658	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6659	{
6660	PVMSVGA3DCONTEXT pContext;
6661	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6662	AssertReturn(pState, VERR_NO_MEMORY);
6663	int rc;
6664
6665	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6666
6667	if ( cid >= pState->cContexts
6668	\|\| pState->papContexts[cid]->id != cid)
6669	{
6670	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6671	return VERR_INVALID_PARAMETER;
6672	}
6673	pContext = pState->papContexts[cid];
6674	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6675
6676	for (uint32_t i = 0; i < cRegisters; i++)
6677	{
6678	#ifdef LOG_ENABLED
6679	switch (ctype)
6680	{
6681	case SVGA3D_CONST_TYPE_FLOAT:
6682	{
6683	float pValuesF = (float )pValues;
6684	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)));
6685	break;
6686	}
6687
6688	case SVGA3D_CONST_TYPE_INT:
6689	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6690	break;
6691
6692	case SVGA3D_CONST_TYPE_BOOL:
6693	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6694	break;
6695	}
6696	#endif
6697	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6698	}
6699
6700	switch (type)
6701	{
6702	case SVGA3D_SHADERTYPE_VS:
6703	switch (ctype)
6704	{
6705	case SVGA3D_CONST_TYPE_FLOAT:
6706	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6707	break;
6708
6709	case SVGA3D_CONST_TYPE_INT:
6710	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6711	break;
6712
6713	case SVGA3D_CONST_TYPE_BOOL:
6714	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6715	break;
6716
6717	default:
6718	AssertFailedReturn(VERR_INVALID_PARAMETER);
6719	}
6720	AssertRCReturn(rc, rc);
6721	break;
6722
6723	case SVGA3D_SHADERTYPE_PS:
6724	switch (ctype)
6725	{
6726	case SVGA3D_CONST_TYPE_FLOAT:
6727	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6728	break;
6729
6730	case SVGA3D_CONST_TYPE_INT:
6731	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6732	break;
6733
6734	case SVGA3D_CONST_TYPE_BOOL:
6735	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6736	break;
6737
6738	default:
6739	AssertFailedReturn(VERR_INVALID_PARAMETER);
6740	}
6741	AssertRCReturn(rc, rc);
6742	break;
6743
6744	default:
6745	AssertFailedReturn(VERR_INVALID_PARAMETER);
6746	}
6747
6748	return VINF_SUCCESS;
6749	}
6750
6751
6752	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6753	{
6754	RT_NOREF(pThis, cid, type);
6755	AssertFailed();
6756	return VERR_NOT_IMPLEMENTED;
6757	}
6758
6759	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6760	{
6761	RT_NOREF(pThis, cid, type, guestResult);
6762	AssertFailed();
6763	return VERR_NOT_IMPLEMENTED;
6764	}
6765
6766	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6767	{
6768	RT_NOREF(pThis, cid, type, guestResult);
6769	AssertFailed();
6770	return VERR_NOT_IMPLEMENTED;
6771	}
6772

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 63427

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