DevVGA-SVGA3d-ogl.cpp@ 62933

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 62933 2016-08-03 17:01:03Z 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	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1221	{
1222	RT_NOREF(pState3D, idx3dCaps);
1223
1224	/** @todo test this somehow */
1225	uint32_t result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1226
1227	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1228	return result;
1229	}
1230
1231
1232	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1233	{
1234	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1235	AssertReturn(pState, VERR_NO_MEMORY);
1236	int rc = VINF_SUCCESS;
1237
1238	*pu32Val = 0;
1239
1240	/*
1241	* The capabilities access by current (2015-03-01) linux sources (gallium,
1242	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1243	* aren't access.
1244	*/
1245
1246	switch (idx3dCaps)
1247	{
1248	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1249	case SVGA3D_DEVCAP_3D:
1250	pu32Val = 1; / boolean? */
1251	break;
1252
1253	case SVGA3D_DEVCAP_MAX_LIGHTS:
1254	*pu32Val = pState->caps.maxActiveLights;
1255	break;
1256
1257	case SVGA3D_DEVCAP_MAX_TEXTURES:
1258	*pu32Val = pState->caps.maxTextures;
1259	break;
1260
1261	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1262	*pu32Val = pState->caps.maxClipDistances;
1263	break;
1264
1265	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1266	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1267	*pu32Val = pState->caps.vertexShaderVersion;
1268	break;
1269
1270	case SVGA3D_DEVCAP_VERTEX_SHADER:
1271	/* boolean? */
1272	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1273	break;
1274
1275	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1276	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1277	*pu32Val = pState->caps.fragmentShaderVersion;
1278	break;
1279
1280	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1281	/* boolean? */
1282	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1283	break;
1284
1285	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1286	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1287	/* Must be obsolete by now; surface format caps specify the same thing. */
1288	rc = VERR_INVALID_PARAMETER;
1289	break;
1290
1291	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1292	break;
1293
1294	/*
1295	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1296	* return TRUE. Even on physical hardware that does not support
1297	* these formats natively, the SVGA3D device will provide an emulation
1298	* which should be invisible to the guest OS.
1299	*/
1300	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1301	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1302	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1303	*pu32Val = 1;
1304	break;
1305
1306	case SVGA3D_DEVCAP_QUERY_TYPES:
1307	break;
1308
1309	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1310	break;
1311
1312	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1313	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1314	AssertCompile(sizeof(uint32_t) == sizeof(float));
1315	(float )pu32Val = pState->caps.flPointSize[1];
1316	break;
1317
1318	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1319	/** @todo ?? */
1320	rc = VERR_INVALID_PARAMETER;
1321	break;
1322
1323	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1324	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1325	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1326	*pu32Val = pState->caps.maxRectangleTextureSize;
1327	break;
1328
1329	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1330	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1331	//*pu32Val = pCaps->MaxVolumeExtent;
1332	break;
1333
1334	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1335	pu32Val = 32768; / hardcoded in Wine */
1336	break;
1337
1338	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1339	//*pu32Val = pCaps->MaxTextureAspectRatio;
1340	break;
1341
1342	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1343	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1344	*pu32Val = pState->caps.maxTextureAnisotropy;
1345	break;
1346
1347	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1348	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1349	pu32Val = 0xFFFFF; / hardcoded in Wine */
1350	break;
1351
1352	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1353	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1354	*pu32Val = pState->caps.maxVertexShaderInstructions;
1355	break;
1356
1357	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1358	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1359	break;
1360
1361	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1362	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1363	*pu32Val = pState->caps.maxVertexShaderTemps;
1364	break;
1365
1366	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1367	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1368	*pu32Val = pState->caps.maxFragmentShaderTemps;
1369	break;
1370
1371	case SVGA3D_DEVCAP_TEXTURE_OPS:
1372	break;
1373
1374	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1375	break;
1376
1377	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1378	break;
1379
1380	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1381	break;
1382
1383	case SVGA3D_DEVCAP_SUPERSAMPLE:
1384	break;
1385
1386	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1387	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1388	break;
1389
1390	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1391	break;
1392
1393	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1394	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1395	*pu32Val = pState->caps.maxColorAttachments;
1396	break;
1397
1398	/*
1399	* This is the maximum number of SVGA context IDs that the guest
1400	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1401	*/
1402	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1403	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1404	break;
1405
1406	/*
1407	* This is the maximum number of SVGA surface IDs that the guest
1408	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1409	*/
1410	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1411	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1412	break;
1413
1414	#if 0 /* Appeared more recently, not yet implemented. */
1415	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1416	case SVGA3D_DEVCAP_LINE_AA:
1417	break;
1418	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1419	case SVGA3D_DEVCAP_LINE_STIPPLE:
1420	break;
1421	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1422	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1423	break;
1424	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1425	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1426	break;
1427	#endif
1428
1429	/*
1430	* Supported surface formats.
1431	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1432	*/
1433	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1434	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1435	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1436	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1437	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1438	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1439	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1440	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1441	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1442	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1443	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1444	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1445	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1446	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1447	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1448	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1449	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1450	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1451	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1452	break;
1453
1454	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1455	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1456	pu32Val = 0; / apparently not supported in OpenGL */
1457	break;
1458
1459	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1460	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1461	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1462	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1463	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1464	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1465	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1466	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1467	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1468	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1469	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1470	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1471	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1472	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1473	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1474	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1475	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1476	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1477	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1478	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1479	*pu32Val = vmsvga3dGetSurfaceFormatSupport(idx3dCaps);
1480	break;
1481
1482	/* Linux: Not referenced in current sources. */
1483	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1484	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1485	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1486	rc = VERR_INVALID_PARAMETER;
1487	*pu32Val = 0;
1488	break;
1489
1490	default:
1491	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1492	rc = VERR_INVALID_PARAMETER;
1493	break;
1494	}
1495
1496	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1497	return rc;
1498	}
1499
1500	/**
1501	* Convert SVGA format value to its OpenGL equivalent
1502	*
1503	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1504	* help from wined3dformat_from_d3dformat().
1505	*/
1506	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1507	{
1508	switch (format)
1509	{
1510	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1511	pSurface->internalFormatGL = GL_RGB8;
1512	pSurface->formatGL = GL_BGRA;
1513	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1514	break;
1515	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1516	pSurface->internalFormatGL = GL_RGBA8;
1517	pSurface->formatGL = GL_BGRA;
1518	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1519	break;
1520	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1521	pSurface->internalFormatGL = GL_RGB5;
1522	pSurface->formatGL = GL_RGB;
1523	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1524	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1525	break;
1526	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1527	pSurface->internalFormatGL = GL_RGB5;
1528	pSurface->formatGL = GL_BGRA;
1529	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1530	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1531	break;
1532	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1533	pSurface->internalFormatGL = GL_RGB5_A1;
1534	pSurface->formatGL = GL_BGRA;
1535	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1536	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1537	break;
1538	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1539	pSurface->internalFormatGL = GL_RGBA4;
1540	pSurface->formatGL = GL_BGRA;
1541	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1542	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1543	break;
1544
1545	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1546	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1547	pSurface->formatGL = GL_DEPTH_COMPONENT;
1548	pSurface->typeGL = GL_UNSIGNED_INT;
1549	break;
1550	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1551	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1552	pSurface->formatGL = GL_DEPTH_COMPONENT;
1553	pSurface->typeGL = GL_UNSIGNED_SHORT;
1554	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1555	break;
1556	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1557	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1558	pSurface->formatGL = GL_DEPTH_STENCIL;
1559	pSurface->typeGL = GL_UNSIGNED_INT;
1560	break;
1561	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1562	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
1563	pSurface->formatGL = GL_DEPTH_STENCIL;
1564	pSurface->typeGL = GL_UNSIGNED_SHORT;
1565	/** @todo Wine sources hints at no hw support for this, so test this one! */
1566	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1567	break;
1568	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1569	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1570	pSurface->formatGL = GL_DEPTH_COMPONENT;
1571	pSurface->typeGL = GL_UNSIGNED_INT;
1572	break;
1573
1574	/* Advanced D3D9 depth formats. */
1575	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1576	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1577	pSurface->formatGL = GL_DEPTH_COMPONENT;
1578	pSurface->typeGL = GL_FLOAT;
1579	break;
1580
1581	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1582	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1583	pSurface->formatGL = GL_DEPTH_COMPONENT;
1584	pSurface->typeGL = GL_FLOAT; /* ??? */
1585	break;
1586
1587	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1588	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1589	pSurface->formatGL = GL_DEPTH_STENCIL;
1590	pSurface->typeGL = GL_INT; /* ??? */
1591	break;
1592
1593	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1594	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1595	#if 0
1596	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1597	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1598	#else /* wine suggests: */
1599	pSurface->formatGL = GL_RGBA;
1600	pSurface->typeGL = GL_UNSIGNED_BYTE;
1601	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1602	#endif
1603	break;
1604
1605	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1606	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1607	#if 0 /** @todo this needs testing... */
1608	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1609	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1610	#else /* wine suggests: */
1611	pSurface->formatGL = GL_RGBA;
1612	pSurface->typeGL = GL_UNSIGNED_BYTE;
1613	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1614	#endif
1615	break;
1616
1617	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1618	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1619	#if 0 /** @todo this needs testing... */
1620	pSurface->formatGL = GL_RGBA_S3TC;
1621	pSurface->typeGL = GL_UNSIGNED_INT;
1622	#else /* wine suggests: */
1623	pSurface->formatGL = GL_RGBA;
1624	pSurface->typeGL = GL_UNSIGNED_BYTE;
1625	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1626	#endif
1627	break;
1628
1629	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1630	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1631	pSurface->formatGL = GL_LUMINANCE;
1632	pSurface->typeGL = GL_UNSIGNED_BYTE;
1633	break;
1634
1635	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1636	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1637	pSurface->formatGL = GL_LUMINANCE;
1638	pSurface->typeGL = GL_UNSIGNED_SHORT;
1639	break;
1640
1641	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1642	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1643	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1644	pSurface->typeGL = GL_UNSIGNED_BYTE;
1645	break;
1646
1647	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1648	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1649	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1650	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1651	break;
1652
1653	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1654	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1655	pSurface->formatGL = GL_ALPHA;
1656	pSurface->typeGL = GL_UNSIGNED_BYTE;
1657	break;
1658
1659	#if 0
1660
1661	/* Bump-map formats */
1662	case SVGA3D_BUMPU8V8:
1663	return D3DFMT_V8U8;
1664	case SVGA3D_BUMPL6V5U5:
1665	return D3DFMT_L6V5U5;
1666	case SVGA3D_BUMPX8L8V8U8:
1667	return D3DFMT_X8L8V8U8;
1668	case SVGA3D_BUMPL8V8U8:
1669	/* No corresponding D3D9 equivalent. */
1670	AssertFailedReturn(D3DFMT_UNKNOWN);
1671	/* signed bump-map formats */
1672	case SVGA3D_V8U8:
1673	return D3DFMT_V8U8;
1674	case SVGA3D_Q8W8V8U8:
1675	return D3DFMT_Q8W8V8U8;
1676	case SVGA3D_CxV8U8:
1677	return D3DFMT_CxV8U8;
1678	/* mixed bump-map formats */
1679	case SVGA3D_X8L8V8U8:
1680	return D3DFMT_X8L8V8U8;
1681	case SVGA3D_A2W10V10U10:
1682	return D3DFMT_A2W10V10U10;
1683	#endif
1684
1685	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1686	pSurface->internalFormatGL = GL_RGBA16F;
1687	pSurface->formatGL = GL_RGBA;
1688	#if 0 /* bird: wine uses half float, sounds correct to me... */
1689	pSurface->typeGL = GL_FLOAT;
1690	#else
1691	pSurface->typeGL = GL_HALF_FLOAT;
1692	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1693	#endif
1694	break;
1695
1696	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1697	pSurface->internalFormatGL = GL_RGBA32F;
1698	pSurface->formatGL = GL_RGBA;
1699	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1700	break;
1701
1702	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1703	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1704	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1705	pSurface->formatGL = GL_RGBA;
1706	#else
1707	pSurface->formatGL = GL_BGRA;
1708	#endif
1709	pSurface->typeGL = GL_UNSIGNED_INT;
1710	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1711	break;
1712
1713
1714	/* Single- and dual-component floating point formats */
1715	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1716	pSurface->internalFormatGL = GL_R16F;
1717	pSurface->formatGL = GL_RED;
1718	#if 0 /* bird: wine uses half float, sounds correct to me... */
1719	pSurface->typeGL = GL_FLOAT;
1720	#else
1721	pSurface->typeGL = GL_HALF_FLOAT;
1722	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1723	#endif
1724	break;
1725	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1726	pSurface->internalFormatGL = GL_R32F;
1727	pSurface->formatGL = GL_RG;
1728	pSurface->typeGL = GL_FLOAT;
1729	break;
1730	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1731	pSurface->internalFormatGL = GL_RG16F;
1732	pSurface->formatGL = GL_RG;
1733	#if 0 /* bird: wine uses half float, sounds correct to me... */
1734	pSurface->typeGL = GL_FLOAT;
1735	#else
1736	pSurface->typeGL = GL_HALF_FLOAT;
1737	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1738	#endif
1739	break;
1740	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1741	pSurface->internalFormatGL = GL_RG32F;
1742	pSurface->formatGL = GL_RG;
1743	pSurface->typeGL = GL_FLOAT;
1744	break;
1745
1746	/*
1747	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1748	* the most efficient format to use when creating new surfaces
1749	* expressly for index or vertex data.
1750	*/
1751	case SVGA3D_BUFFER:
1752	pSurface->internalFormatGL = -1;
1753	pSurface->formatGL = -1;
1754	pSurface->typeGL = -1;
1755	break;
1756
1757	#if 0
1758	return D3DFMT_UNKNOWN;
1759
1760	case SVGA3D_V16U16:
1761	return D3DFMT_V16U16;
1762	#endif
1763
1764	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1765	pSurface->internalFormatGL = GL_RG16;
1766	pSurface->formatGL = GL_RG;
1767	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1768	pSurface->typeGL = GL_UNSIGNED_INT;
1769	#else
1770	pSurface->typeGL = GL_UNSIGNED_SHORT;
1771	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1772	#endif
1773	break;
1774
1775	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1776	pSurface->internalFormatGL = GL_RGBA16;
1777	pSurface->formatGL = GL_RGBA;
1778	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1779	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1780	#else
1781	pSurface->typeGL = GL_UNSIGNED_SHORT;
1782	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1783	#endif
1784	break;
1785
1786	#if 0
1787	/* Packed Video formats */
1788	case SVGA3D_UYVY:
1789	return D3DFMT_UYVY;
1790	case SVGA3D_YUY2:
1791	return D3DFMT_YUY2;
1792
1793	/* Planar video formats */
1794	case SVGA3D_NV12:
1795	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1796
1797	/* Video format with alpha */
1798	case SVGA3D_AYUV:
1799	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1800
1801	case SVGA3D_BC4_UNORM:
1802	case SVGA3D_BC5_UNORM:
1803	/* Unknown; only in DX10 & 11 */
1804	break;
1805	#endif
1806	default:
1807	AssertMsgFailed(("Unsupported format %d\n", format));
1808	break;
1809	}
1810	}
1811
1812
1813	#if 0
1814	/**
1815	* Convert SVGA multi sample count value to its D3D equivalent
1816	*/
1817	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1818	{
1819	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1820	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1821
1822	if (multisampleCount > 16)
1823	return D3DMULTISAMPLE_NONE;
1824
1825	/** @todo exact same mapping as d3d? */
1826	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1827	}
1828	#endif
1829
1830	/**
1831	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1832	*
1833	* @param pState The VMSVGA3d state.
1834	* @param pSurface The surface being destroyed.
1835	*/
1836	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1837	{
1838	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1839	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1840
1841	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1842	{
1843	case SVGA3D_SURFACE_CUBEMAP:
1844	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1845	break;
1846
1847	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1848	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1849	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1850	{
1851	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1852	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1853	}
1854	break;
1855
1856	case SVGA3D_SURFACE_HINT_TEXTURE:
1857	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1858	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1859	{
1860	glDeleteTextures(1, &pSurface->oglId.texture);
1861	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1862	}
1863	break;
1864
1865	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1866	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1867	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1868	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1869	{
1870	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1871	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1872	}
1873	break;
1874
1875	default:
1876	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1877	break;
1878	}
1879	}
1880
1881
1882	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1883	{
1884	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1885	uint32_t sidSrc = src.sid;
1886	uint32_t sidDest = dest.sid;
1887	int rc = VINF_SUCCESS;
1888
1889	AssertReturn(pState, VERR_NO_MEMORY);
1890	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1891	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1892	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1893	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1894
1895	for (uint32_t i = 0; i < cCopyBoxes; i++)
1896	{
1897	SVGA3dBox destBox, srcBox;
1898
1899	srcBox.x = pBox[i].srcx;
1900	srcBox.y = pBox[i].srcy;
1901	srcBox.z = pBox[i].srcz;
1902	srcBox.w = pBox[i].w;
1903	srcBox.h = pBox[i].h;
1904	srcBox.d = pBox[i].z; /* XXX what about pBox[i].d? */
1905
1906	destBox.x = pBox[i].x;
1907	destBox.y = pBox[i].y;
1908	destBox.z = pBox[i].z;
1909	destBox.w = pBox[i].w;
1910	destBox.h = pBox[i].h;
1911	destBox.z = pBox[i].z; /* XXX initializing destBox.z again? What about pBox[i].d and destBox.d? */
1912
1913	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1914	AssertRCReturn(rc, rc);
1915	}
1916	return VINF_SUCCESS;
1917	}
1918
1919
1920	/**
1921	* Save texture unpacking parameters and loads those appropriate for the given
1922	* surface.
1923	*
1924	* @param pState The VMSVGA3D state structure.
1925	* @param pContext The active context.
1926	* @param pSurface The surface.
1927	* @param pSave Where to save stuff.
1928	*/
1929	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1930	PVMSVGAPACKPARAMS pSave)
1931	{
1932	RT_NOREF(pState);
1933
1934	/*
1935	* Save (ignore errors, setting the defaults we want and avoids restore).
1936	*/
1937	pSave->iAlignment = 1;
1938	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1939	pSave->cxRow = 0;
1940	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1941
1942	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1943	pSave->cyImage = 0;
1944	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1945	Assert(pSave->cyImage == 0);
1946
1947	pSave->fSwapBytes = GL_FALSE;
1948	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1949	Assert(pSave->fSwapBytes == GL_FALSE);
1950
1951	pSave->fLsbFirst = GL_FALSE;
1952	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1953	Assert(pSave->fLsbFirst == GL_FALSE);
1954
1955	pSave->cSkipRows = 0;
1956	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1957	Assert(pSave->cSkipRows == 0);
1958
1959	pSave->cSkipPixels = 0;
1960	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1961	Assert(pSave->cSkipPixels == 0);
1962
1963	pSave->cSkipImages = 0;
1964	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1965	Assert(pSave->cSkipImages == 0);
1966
1967	VMSVGA3D_CLEAR_GL_ERRORS();
1968	#endif
1969
1970	/*
1971	* Setup unpack.
1972	*
1973	* Note! We use 1 as alignment here because we currently don't do any
1974	* aligning of line pitches anywhere.
1975	*/
1976	NOREF(pSurface);
1977	if (pSave->iAlignment != 1)
1978	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
1979	if (pSave->cxRow != 0)
1980	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
1981	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1982	if (pSave->cyImage != 0)
1983	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
1984	if (pSave->fSwapBytes != 0)
1985	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
1986	if (pSave->fLsbFirst != 0)
1987	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
1988	if (pSave->cSkipRows != 0)
1989	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
1990	if (pSave->cSkipPixels != 0)
1991	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
1992	if (pSave->cSkipImages != 0)
1993	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
1994	#endif
1995	}
1996
1997
1998	/**
1999	* Restores texture unpacking parameters.
2000	*
2001	* @param pState The VMSVGA3D state structure.
2002	* @param pContext The active context.
2003	* @param pSurface The surface.
2004	* @param pSave Where stuff was saved.
2005	*/
2006	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2007	PCVMSVGAPACKPARAMS pSave)
2008	{
2009	RT_NOREF(pState, pSurface);
2010
2011	if (pSave->iAlignment != 1)
2012	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2013	if (pSave->cxRow != 0)
2014	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2015	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2016	if (pSave->cyImage != 0)
2017	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2018	if (pSave->fSwapBytes != 0)
2019	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2020	if (pSave->fLsbFirst != 0)
2021	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2022	if (pSave->cSkipRows != 0)
2023	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2024	if (pSave->cSkipPixels != 0)
2025	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2026	if (pSave->cSkipImages != 0)
2027	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2028	#endif
2029	}
2030
2031
2032	/**
2033	* Create D3D/OpenGL texture object for the specified surface.
2034	*
2035	* Surfaces are created when needed.
2036	*
2037	* @param pState The VMSVGA3d state.
2038	* @param pContext The context.
2039	* @param idAssociatedContext Probably the same as pContext->id.
2040	* @param pSurface The surface to create the texture for.
2041	*/
2042	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2043	PVMSVGA3DSURFACE pSurface)
2044	{
2045	RT_NOREF(idAssociatedContext);
2046	GLint activeTexture = 0;
2047	uint32_t idPrevCtx = pState->idActiveContext;
2048	pContext = &pState->SharedCtx;
2049	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2050
2051	glGenTextures(1, &pSurface->oglId.texture);
2052	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2053	/** @todo Set the mip map generation filter settings. */
2054
2055	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2056	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2057
2058	/* Must bind texture to the current context in order to change it. */
2059	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2060	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2061
2062	/* Set the unpacking parameters. */
2063	VMSVGAPACKPARAMS SavedParams;
2064	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2065
2066	/* Set the mipmap base and max level paramters. */
2067	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2068	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2069	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2070	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2071
2072	if (pSurface->fDirty)
2073	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2074
2075	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2076	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2077	{
2078	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2079	exposing random host memory to the guest and helps a with the fedora 21 surface
2080	corruption issues (launchpad, background, search field, login). */
2081	if (pSurface->pMipmapLevels[i].fDirty)
2082	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2083
2084	glTexImage2D(GL_TEXTURE_2D,
2085	i,
2086	pSurface->internalFormatGL,
2087	pSurface->pMipmapLevels[i].size.width,
2088	pSurface->pMipmapLevels[i].size.height,
2089	0,
2090	pSurface->formatGL,
2091	pSurface->typeGL,
2092	pSurface->pMipmapLevels[i].pSurfaceData);
2093
2094	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2095
2096	pSurface->pMipmapLevels[i].fDirty = false;
2097	}
2098	pSurface->fDirty = false;
2099
2100	/* Restore unpacking parameters. */
2101	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2102
2103	/* Restore the old active texture. */
2104	glBindTexture(GL_TEXTURE_2D, activeTexture);
2105	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2106
2107	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2108
2109	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2110	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2111	return VINF_SUCCESS;
2112	}
2113
2114
2115	/**
2116	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2117	*
2118	* @returns VBox status code.
2119	* @param pThis The VGA device instance.
2120	* @param pState The VMSVGA3d state.
2121	* @param pDstSurface The destination host surface.
2122	* @param uDstMipmap The destination mipmap level (valid).
2123	* @param pDstBox The destination box.
2124	* @param pSrcSurface The source host surface.
2125	* @param uSrcMipmap The source mimap level (valid).
2126	* @param pSrcBox The source box.
2127	* @param enmMode The strecht blt mode .
2128	* @param pContext The VMSVGA3d context (already current for OGL).
2129	*/
2130	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2131	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2132	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2133	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2134	{
2135	RT_NOREF(pThis);
2136
2137	/* Activate the read and draw framebuffer objects. */
2138	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2139	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2140	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2141	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2142
2143	/* Bind the source and destination objects to the right place. */
2144	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2145	pSrcSurface->oglId.texture, uSrcMipmap);
2146	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2147	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2148	pDstSurface->oglId.texture, uDstMipmap);
2149	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2150
2151	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),
2152	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2153	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2154
2155	pState->ext.glBlitFramebuffer(pSrcBox->x,
2156	#ifdef MANUAL_FLIP_SURFACE_DATA
2157	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2158	#else
2159	pSrcBox->y,
2160	#endif
2161	pSrcBox->x + pSrcBox->w, /* exclusive. */
2162	#ifdef MANUAL_FLIP_SURFACE_DATA
2163	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2164	#else
2165	pSrcBox->y + pSrcBox->h,
2166	#endif
2167	pDstBox->x,
2168	#ifdef MANUAL_FLIP_SURFACE_DATA
2169	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2170	#else
2171	pDstBox->y,
2172	#endif
2173	pDstBox->x + pDstBox->w, /* exclusive. */
2174	#ifdef MANUAL_FLIP_SURFACE_DATA
2175	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2176	#else
2177	pDstBox->y + pDstBox->h,
2178	#endif
2179	GL_COLOR_BUFFER_BIT,
2180	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2181	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2182
2183	/* Reset the frame buffer association */
2184	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2185	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2186
2187	return VINF_SUCCESS;
2188	}
2189
2190	/**
2191	* Save texture packing parameters and loads those appropriate for the given
2192	* surface.
2193	*
2194	* @param pState The VMSVGA3D state structure.
2195	* @param pContext The active context.
2196	* @param pSurface The surface.
2197	* @param pSave Where to save stuff.
2198	*/
2199	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2200	PVMSVGAPACKPARAMS pSave)
2201	{
2202	RT_NOREF(pState);
2203	/*
2204	* Save (ignore errors, setting the defaults we want and avoids restore).
2205	*/
2206	pSave->iAlignment = 1;
2207	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2208	pSave->cxRow = 0;
2209	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2210
2211	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2212	pSave->cyImage = 0;
2213	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2214	Assert(pSave->cyImage == 0);
2215
2216	pSave->fSwapBytes = GL_FALSE;
2217	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2218	Assert(pSave->fSwapBytes == GL_FALSE);
2219
2220	pSave->fLsbFirst = GL_FALSE;
2221	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2222	Assert(pSave->fLsbFirst == GL_FALSE);
2223
2224	pSave->cSkipRows = 0;
2225	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2226	Assert(pSave->cSkipRows == 0);
2227
2228	pSave->cSkipPixels = 0;
2229	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2230	Assert(pSave->cSkipPixels == 0);
2231
2232	pSave->cSkipImages = 0;
2233	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2234	Assert(pSave->cSkipImages == 0);
2235
2236	VMSVGA3D_CLEAR_GL_ERRORS();
2237	#endif
2238
2239	/*
2240	* Setup unpack.
2241	*
2242	* Note! We use 1 as alignment here because we currently don't do any
2243	* aligning of line pitches anywhere.
2244	*/
2245	NOREF(pSurface);
2246	if (pSave->iAlignment != 1)
2247	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2248	if (pSave->cxRow != 0)
2249	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2250	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2251	if (pSave->cyImage != 0)
2252	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2253	if (pSave->fSwapBytes != 0)
2254	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2255	if (pSave->fLsbFirst != 0)
2256	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2257	if (pSave->cSkipRows != 0)
2258	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2259	if (pSave->cSkipPixels != 0)
2260	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2261	if (pSave->cSkipImages != 0)
2262	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2263	#endif
2264	}
2265
2266
2267	/**
2268	* Restores texture packing parameters.
2269	*
2270	* @param pState The VMSVGA3D state structure.
2271	* @param pContext The active context.
2272	* @param pSurface The surface.
2273	* @param pSave Where stuff was saved.
2274	*/
2275	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2276	PCVMSVGAPACKPARAMS pSave)
2277	{
2278	RT_NOREF(pState, pSurface);
2279	if (pSave->iAlignment != 1)
2280	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2281	if (pSave->cxRow != 0)
2282	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2283	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2284	if (pSave->cyImage != 0)
2285	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2286	if (pSave->fSwapBytes != 0)
2287	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2288	if (pSave->fLsbFirst != 0)
2289	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2290	if (pSave->cSkipRows != 0)
2291	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2292	if (pSave->cSkipPixels != 0)
2293	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2294	if (pSave->cSkipImages != 0)
2295	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2296	#endif
2297	}
2298
2299
2300	/**
2301	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2302	*
2303	* @returns Failure status code or @a rc.
2304	* @param pThis The VGA device instance data.
2305	* @param pState The VMSVGA3d state.
2306	* @param pSurface The host surface.
2307	* @param uHostMipmap The host mipmap level (valid).
2308	* @param GuestPtr The guest pointer.
2309	* @param cbSrcPitch The guest (?) pitch.
2310	* @param transfer The transfer direction.
2311	* @param pBox The box to copy.
2312	* @param pContext The context (for OpenGL).
2313	* @param rc The current rc for all boxes.
2314	* @param iBox The current box number (for Direct 3D).
2315	*/
2316	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface, uint32_t uHostMipmap,
2317	SVGAGuestPtr GuestPtr, uint32_t cbSrcPitch, SVGA3dTransferType transfer,
2318	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2319	{
2320	RT_NOREF(iBox);
2321	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[uHostMipmap];
2322
2323	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2324	{
2325	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2326	case SVGA3D_SURFACE_HINT_TEXTURE:
2327	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2328	{
2329	uint32_t cbSurfacePitch;
2330	uint8_t pDoubleBuffer, pBufferStart;
2331	unsigned uDestOffset = 0;
2332
2333	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2334	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2335
2336	if (transfer == SVGA3D_READ_HOST_VRAM)
2337	{
2338	GLint activeTexture;
2339
2340	/* Must bind texture to the current context in order to read it. */
2341	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2342	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2343
2344	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2345	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2346
2347	/* Set row length and alignment of the input data. */
2348	VMSVGAPACKPARAMS SavedParams;
2349	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2350
2351	glGetTexImage(GL_TEXTURE_2D,
2352	uHostMipmap,
2353	pSurface->formatGL,
2354	pSurface->typeGL,
2355	pDoubleBuffer);
2356	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2357
2358	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2359
2360	/* Restore the old active texture. */
2361	glBindTexture(GL_TEXTURE_2D, activeTexture);
2362	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2363
2364	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2365	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2366	<= pMipLevel->cbSurface,
2367	RTMemFree(pDoubleBuffer),
2368	VERR_INTERNAL_ERROR);
2369
2370	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2371
2372	#ifdef MANUAL_FLIP_SURFACE_DATA
2373	pBufferStart = pDoubleBuffer
2374	+ pBox->x * pSurface->cbBlock
2375	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2376	- cbSurfacePitch; /* flip image during copy */
2377	#else
2378	pBufferStart = pDoubleBuffer + uDestOffset;
2379	#endif
2380	}
2381	else
2382	{
2383	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2384	#ifdef MANUAL_FLIP_SURFACE_DATA
2385	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2386	#else
2387	pBufferStart = pDoubleBuffer;
2388	#endif
2389	}
2390
2391	rc = vmsvgaGMRTransfer(pThis,
2392	transfer,
2393	pBufferStart,
2394	#ifdef MANUAL_FLIP_SURFACE_DATA
2395	-(int32_t)cbSurfacePitch,
2396	#else
2397	(int32_t)cbSurfacePitch,
2398	#endif
2399	GuestPtr,
2400	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2401	cbSrcPitch,
2402	pBox->w * pSurface->cbBlock,
2403	pBox->h);
2404	AssertRC(rc);
2405
2406	/* Update the opengl surface data. */
2407	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2408	{
2409	GLint activeTexture = 0;
2410
2411	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2412	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2413
2414	/* Must bind texture to the current context in order to change it. */
2415	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2416	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2417
2418	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2419
2420	/* Set row length and alignment of the input data. */
2421	VMSVGAPACKPARAMS SavedParams;
2422	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2423
2424	glTexSubImage2D(GL_TEXTURE_2D,
2425	uHostMipmap,
2426	pBox->x,
2427	pBox->y,
2428	pBox->w,
2429	pBox->h,
2430	pSurface->formatGL,
2431	pSurface->typeGL,
2432	pDoubleBuffer);
2433
2434	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2435
2436	/* Restore old values. */
2437	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2438
2439	/* Restore the old active texture. */
2440	glBindTexture(GL_TEXTURE_2D, activeTexture);
2441	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2442	}
2443
2444	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2445
2446	/* Free the double buffer. */
2447	RTMemFree(pDoubleBuffer);
2448	break;
2449	}
2450
2451	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2452	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2453	break;
2454
2455	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2456	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2457	{
2458	Assert(pBox->h == 1);
2459
2460	VMSVGA3D_CLEAR_GL_ERRORS();
2461	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2462	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2463	{
2464	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2465	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2466	if (RT_LIKELY(pbData != NULL))
2467	{
2468	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2469	GLint cbStrictBufSize;
2470	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2471	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2472	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2473	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2474	#endif
2475
2476	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2477	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2478	<= pMipLevel->cbSurface))
2479	{
2480	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" : "index",
2481	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2482
2483	rc = vmsvgaGMRTransfer(pThis,
2484	transfer,
2485	pbData + offDst,
2486	pMipLevel->cbSurfacePitch,
2487	GuestPtr,
2488	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2489	cbSrcPitch,
2490	pBox->w * pSurface->cbBlock,
2491	pBox->h);
2492	AssertRC(rc);
2493
2494	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
2495	}
2496	else
2497	{
2498	AssertFailed();
2499	rc = VERR_INTERNAL_ERROR;
2500	}
2501
2502	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2503	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2504	}
2505	else
2506	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2507	}
2508	else
2509	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2510	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2511	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2512	break;
2513	}
2514
2515	default:
2516	AssertFailed();
2517	break;
2518	}
2519
2520	return rc;
2521	}
2522
2523
2524	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2525	{
2526	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2527	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));
2528	for (uint32_t i = 0; i < cRects; i++)
2529	{
2530	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2531	}
2532
2533	/** @todo Only screen 0 for now. */
2534	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2535	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2536	/** @todo scaling */
2537	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2538
2539	if (cRects == 0)
2540	{
2541	/* easy case; no clipping */
2542	SVGA3dCopyBox box;
2543	SVGA3dGuestImage dst;
2544
2545	box.x = destRect.left;
2546	box.y = destRect.top;
2547	box.z = 0;
2548	box.w = destRect.right - destRect.left;
2549	box.h = destRect.bottom - destRect.top;
2550	box.d = 1;
2551	box.srcx = srcRect.left;
2552	box.srcy = srcRect.top;
2553	box.srcz = 0;
2554
2555	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2556	dst.ptr.offset = 0;
2557	dst.pitch = pThis->svga.cbScanline;
2558
2559	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2560	AssertRCReturn(rc, rc);
2561
2562	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2563	return VINF_SUCCESS;
2564	}
2565	else
2566	{
2567	SVGA3dGuestImage dst;
2568	SVGA3dCopyBox box;
2569
2570	box.srcz = 0;
2571	box.z = 0;
2572	box.d = 1;
2573
2574	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2575	dst.ptr.offset = 0;
2576	dst.pitch = pThis->svga.cbScanline;
2577
2578	/** @todo merge into one SurfaceDMA call */
2579	for (uint32_t i = 0; i < cRects; i++)
2580	{
2581	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2582	box.srcx = srcRect.left + pRect[i].left;
2583	box.srcy = srcRect.top + pRect[i].top;
2584
2585	box.x = pRect[i].left + destRect.left;
2586	box.y = pRect[i].top + destRect.top;
2587	box.z = 0;
2588	box.w = pRect[i].right - pRect[i].left;
2589	box.h = pRect[i].bottom - pRect[i].top;
2590
2591	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2592	AssertRCReturn(rc, rc);
2593
2594	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2595	}
2596
2597	return VINF_SUCCESS;
2598	}
2599	}
2600
2601	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2602	{
2603	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2604	PVMSVGA3DSURFACE pSurface;
2605	int rc = VINF_SUCCESS;
2606	PVMSVGA3DCONTEXT pContext;
2607	uint32_t cid;
2608	GLint activeTexture = 0;
2609
2610	AssertReturn(pState, VERR_NO_MEMORY);
2611	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2612	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2613
2614	pSurface = pState->papSurfaces[sid];
2615
2616	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2617	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2618	pSurface->autogenFilter = filter;
2619
2620	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2621
2622	cid = SVGA3D_INVALID_ID;
2623	pContext = &pState->SharedCtx;
2624	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2625
2626	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2627	{
2628	/* Unknown surface type; turn it into a texture. */
2629	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
2630	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2631	AssertRCReturn(rc, rc);
2632	}
2633	else
2634	{
2635	/** @todo new filter */
2636	AssertFailed();
2637	}
2638
2639	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2640	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2641
2642	/* Must bind texture to the current context in order to change it. */
2643	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2644	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2645
2646	/* Generate the mip maps. */
2647	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2648	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2649
2650	/* Restore the old texture. */
2651	glBindTexture(GL_TEXTURE_2D, activeTexture);
2652	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2653
2654	return VINF_SUCCESS;
2655	}
2656
2657	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2658	{
2659	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2660	PVMSVGA3DSURFACE pSurface;
2661	PVMSVGA3DCONTEXT pContext;
2662	uint32_t cid;
2663
2664	AssertReturn(pState, VERR_NO_MEMORY);
2665	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2666	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2667
2668	pSurface = pState->papSurfaces[sid];
2669
2670	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2671	for (uint32_t i=0; i < cRects; i++)
2672	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));
2673
2674	pContext = &pState->SharedCtx;
2675	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2676	cid = pContext->id;
2677	VMSVGA3D_CLEAR_GL_ERRORS();
2678
2679	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2680	/*
2681	* Source surface different size?
2682	*/
2683	RTRECT2 srcViewPort;
2684	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2685	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2686	{
2687	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2688	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2689
2690	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2691	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2692	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2693	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2694
2695	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2696	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2697	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2698	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2699	}
2700	else
2701	{
2702	srcViewPort.x = pThis->svga.viewport.x;
2703	srcViewPort.y = pThis->svga.viewport.y;
2704	srcViewPort.cx = pThis->svga.viewport.cx;
2705	srcViewPort.cy = pThis->svga.viewport.cy;
2706	}
2707	RTRECT SrcViewPortRect;
2708	SrcViewPortRect.xLeft = srcViewPort.x;
2709	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2710	SrcViewPortRect.yBottom = srcViewPort.y;
2711	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2712	#endif
2713
2714
2715	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2716	/*
2717	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2718	*/
2719	SVGA3dCopyRect rect;
2720	uint32_t oldVShader, oldPShader;
2721	GLint oldTextureId;
2722
2723	if (cRects == 0)
2724	{
2725	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2726	rect.w = pSurface->pMipmapLevels[0].size.width;
2727	rect.h = pSurface->pMipmapLevels[0].size.height;
2728	pRect = &rect;
2729	cRects = 1;
2730	}
2731
2732	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2733
2734	#if 0
2735	glDisable(GL_CULL_FACE);
2736	glDisable(GL_BLEND);
2737	glDisable(GL_ALPHA_TEST);
2738	glDisable(GL_SCISSOR_TEST);
2739	glDisable(GL_STENCIL_TEST);
2740	glEnable(GL_DEPTH_TEST);
2741	glDepthFunc(GL_ALWAYS);
2742	glDepthMask(GL_TRUE);
2743	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2744	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2745	#endif
2746
2747	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2748
2749	oldVShader = pContext->state.shidVertex;
2750	oldPShader = pContext->state.shidPixel;
2751	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2752	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2753
2754	/* Flush shader changes. */
2755	if (pContext->pShaderContext)
2756	ShaderUpdateState(pContext->pShaderContext, 0);
2757
2758	/* Activate the read and draw framebuffer objects. */
2759	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2760	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2761
2762	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2763	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2764	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2765
2766	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2767	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2768
2769	#if 0
2770	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2771	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2772	#endif
2773
2774	/* Reset the transformation matrices. */
2775	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2776	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2777	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2778	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2779	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2780	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2781	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2782	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2783
2784	for (uint32_t i = 0; i < cRects; i++)
2785	{
2786	float left, right, top, bottom; /* Texture coordinates */
2787	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2788
2789	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2790	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2791	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2792	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2793	pRect[i].w = pThis->svga.viewport.cx;
2794	pRect[i].h = pThis->svga.viewport.cy;
2795
2796	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2797	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2798	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2799	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2800	{
2801	/* Intersection is empty; skip */
2802	continue;
2803	}
2804
2805	left = pRect[i].srcx;
2806	right = pRect[i].srcx + pRect[i].w;
2807	top = pRect[i].srcy + pRect[i].h;
2808	bottom = pRect[i].srcy;
2809
2810	left /= pSurface->pMipmapLevels[0].size.width;
2811	right /= pSurface->pMipmapLevels[0].size.width;
2812	top /= pSurface->pMipmapLevels[0].size.height;
2813	bottom /= pSurface->pMipmapLevels[0].size.height;
2814
2815	vertexLeft = pRect[i].x;
2816	vertexRight = pRect[i].x + pRect[i].w;
2817	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2818	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2819
2820	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2821	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2822	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)));
2823
2824	glBegin(GL_QUADS);
2825
2826	/* bottom left */
2827	glTexCoord2f(left, bottom);
2828	glVertex2i(vertexLeft, vertexBottom);
2829
2830	/* top left */
2831	glTexCoord2f(left, top);
2832	glVertex2i(vertexLeft, vertexTop);
2833
2834	/* top right */
2835	glTexCoord2f(right, top);
2836	glVertex2i(vertexRight, vertexTop);
2837
2838	/* bottom right */
2839	glTexCoord2f(right, bottom);
2840	glVertex2i(vertexRight, vertexBottom);
2841
2842	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2843	}
2844
2845	/* Restore old settings. */
2846	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2847	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2848	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2849	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2850
2851	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2852
2853	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2854	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2855	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2856
2857	#else
2858	/*
2859	* glBlitFramebuffer variant.
2860	*/
2861	/* Activate the read and draw framebuffer objects. */
2862	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2863	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2864	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2865	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2866
2867	/* Bind the source objects to the right place. */
2868	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2869	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2870
2871
2872	/* Read the destination viewport specs in one go to try avoid some unnecessary update races. */
2873	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2874	ASMCompilerBarrier(); /* paranoia */
2875	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2876
2877	/* If there are no recangles specified, just grab a screenful. */
2878	SVGA3dCopyRect DummyRect;
2879	if (cRects != 0)
2880	{ /* likely */ }
2881	else
2882	{
2883	/** @todo Find the usecase for this or check what the original device does.
2884	* The original code was doing some scaling based on the surface
2885	* size... */
2886	# ifdef DEBUG_bird
2887	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2888	# endif
2889	DummyRect.x = DummyRect.srcx = 0;
2890	DummyRect.y = DummyRect.srcy = 0;
2891	DummyRect.w = pThis->svga.uWidth;
2892	DummyRect.h = pThis->svga.uHeight;
2893	cRects = 1;
2894	pRect = &DummyRect;
2895	}
2896
2897	/*
2898	* Blit the surface rectangle(s) to the back buffer.
2899	*/
2900	uint32_t const cxSurface = pSurface->pMipmapLevels[0].size.width;
2901	uint32_t const cySurface = pSurface->pMipmapLevels[0].size.height;
2902	for (uint32_t i = 0; i < cRects; i++)
2903	{
2904	SVGA3dCopyRect ClippedRect = pRect[i];
2905
2906	/*
2907	* Do some sanity checking and limit width and height, all so we
2908	* don't need to think about wrap-arounds below.
2909	*/
2910	if (RT_LIKELY( ClippedRect.w
2911	&& ClippedRect.x < VMSVGA_MAX_X
2912	&& ClippedRect.srcx < VMSVGA_MAX_X
2913	&& ClippedRect.h
2914	&& ClippedRect.y < VMSVGA_MAX_Y
2915	&& ClippedRect.srcy < VMSVGA_MAX_Y
2916	))
2917	{ /* likely */ }
2918	else
2919	continue;
2920
2921	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2922	{ /* likely */ }
2923	else
2924	ClippedRect.w = VMSVGA_MAX_Y;
2925	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2926	{ /* likely */ }
2927	else
2928	ClippedRect.w = VMSVGA_MAX_Y;
2929
2930
2931	/*
2932	* Source surface clipping (paranoia). Straight forward.
2933	*/
2934	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2935	{ /* likely */ }
2936	else
2937	continue;
2938	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2939	{ /* likely */ }
2940	else
2941	{
2942	AssertFailed(); /* remove if annoying. */
2943	ClippedRect.w = cxSurface - ClippedRect.srcx;
2944	}
2945
2946	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2947	{ /* likely */ }
2948	else
2949	continue;
2950	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2951	{ /* likely */ }
2952	else
2953	{
2954	AssertFailed(); /* remove if annoying. */
2955	ClippedRect.h = cySurface - ClippedRect.srcy;
2956	}
2957
2958	/*
2959	* Destination viewport clipping - real PITA.
2960	*
2961	* We have to take the following into account here:
2962	* - The source image is Y inverted.
2963	* - The destination framebuffer is in world and not window coordinates,
2964	* just like the source surface. This means working in the first quadrant.
2965	* - The viewport is in window coordinate, that is fourth quadrant and
2966	* negated Y values.
2967	* - The destination framebuffer is not scrolled, so we have to blit
2968	* what's visible into the top of the framebuffer.
2969	*
2970	*
2971	* To illustrate:
2972	*
2973	* source destination 0123456789
2974	* 8 ^---------- 8 ^---------- 0 ----------->
2975	* 7 \| \| 7 \| \| 1 \| \|
2976	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
2977	* 5 \| *** \| 5 \| * \| 3 \| * \|
2978	* 4 \| * \| => 4 \| * \| => 4 \| * \|
2979	* 3 \| * \| 3 \| * \| 5 \| * \|
2980	* 2 \| ******* \| 2 \| \| 6 \| \|
2981	* 1 \| \| 1 \| \| 7 \| \|
2982	* 0 -----------> 0 -----------> 8 v----------
2983	* 0123456789 0123456789 Destination window
2984	*
2985	* From the above, it follows that a destination viewport given in
2986	* window coordinates matches the source exactly when srcy = srcx = 0.
2987	*
2988	* Example (Y only):
2989	* ySrc = 0
2990	* yDst = 0
2991	* cyCopy = 9
2992	* cyScreen = cyCopy
2993	* cySurface >= cyCopy
2994	* yViewport = 5
2995	* cyViewport = 2 (i.e. '\| *** \|'
2996	* '\| \|' )
2997	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
2998	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
2999	*
3000	* We can see from the illustration that the final result should be:
3001	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
3002	* DstRect = (0,2) (11, 4)
3003	*
3004	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
3005	* easier to follow:
3006	* SrcRect = (0,5) (11, 7)
3007	*
3008	* From the top, Y values only:
3009	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
3010	*
3011	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
3012	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
3013	* Copy.yDst += cyAdjust = 2;
3014	* Copy.ySrc = unchanged;
3015	* Copy.cx -= cyAdjust = 7;
3016	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
3017	*
3018	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
3019	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
3020	* Copy.yDst = unchanged;
3021	* Copy.ySrc += cyAdjust = 5;
3022	* Copy.cx -= cyAdjust = 2;
3023	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
3024	*
3025	* Update: On darwin, it turns out that when we call [NSOpenGLContext updates]
3026	* when the view is resized, moved and otherwise messed with,
3027	* the visible part of the framebuffer is actually the bottom
3028	* one. It's easy to adjust for this, just have to adjust the
3029	* destination rectangle such that yBottom is zero.
3030	*/
3031	/* X - no inversion, so kind of simple. */
3032	if (ClippedRect.x >= DstViewport.x)
3033	{
3034	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3035	{ /* typical */ }
3036	else if (ClippedRect.x < DstViewport.xRight)
3037	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3038	else
3039	continue;
3040	}
3041	else
3042	{
3043	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3044	if (cxAdjust < ClippedRect.w)
3045	{
3046	ClippedRect.w -= cxAdjust;
3047	ClippedRect.x += cxAdjust;
3048	ClippedRect.srcx += cxAdjust;
3049	}
3050	else
3051	continue;
3052
3053	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3054	{ /* typical */ }
3055	else
3056	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3057	}
3058
3059	/* Y - complicated, see above. */
3060	if (ClippedRect.y >= DstViewport.yLowWC)
3061	{
3062	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3063	{ /* typical */ }
3064	else if (ClippedRect.y < DstViewport.yHighWC)
3065	{
3066	/* adjustment #2 */
3067	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3068	ClippedRect.srcy += cyAdjust;
3069	ClippedRect.h -= cyAdjust;
3070	}
3071	else
3072	continue;
3073	}
3074	else
3075	{
3076	/* adjustment #1 */
3077	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3078	if (cyAdjust < ClippedRect.h)
3079	{
3080	ClippedRect.y += cyAdjust;
3081	ClippedRect.h -= cyAdjust;
3082	}
3083	else
3084	continue;
3085
3086	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3087	{ /* typical */ }
3088	else
3089	{
3090	/* adjustment #2 */
3091	cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3092	ClippedRect.srcy += cyAdjust;
3093	ClippedRect.h -= cyAdjust;
3094	}
3095	}
3096
3097	/* Calc source rectangle with y flipping wrt destination. */
3098	RTRECT SrcRect;
3099	SrcRect.xLeft = ClippedRect.srcx;
3100	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3101	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3102	SrcRect.yTop = ClippedRect.srcy;
3103
3104	/* Calc destination rectangle. */
3105	RTRECT DstRect;
3106	DstRect.xLeft = ClippedRect.x;
3107	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3108	DstRect.yBottom = ClippedRect.y;
3109	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3110
3111	/* Adjust for viewport. */
3112	DstRect.xLeft -= DstViewport.x;
3113	DstRect.xRight -= DstViewport.x;
3114	# ifdef RT_OS_DARWIN /* We actually seeing the bottom of the FB, not the top as on windows and X11. */
3115	DstRect.yTop -= DstRect.yBottom;
3116	DstRect.yBottom = 0;
3117	# else
3118	DstRect.yBottom += DstViewport.y;
3119	DstRect.yTop += DstViewport.y;
3120	# endif
3121
3122	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3123	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3124	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3125	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3126	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3127	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3128	}
3129
3130	#endif
3131
3132	/*
3133	* Flip the front and back buffers.
3134	*/
3135	#ifdef RT_OS_WINDOWS
3136	BOOL fRef = SwapBuffers(pContext->hdc);
3137	AssertMsg(fRef, ("SwapBuffers failed with %d\n", GetLastError())); NOREF(fRef);
3138	#elif defined(RT_OS_DARWIN)
3139	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3140	#else
3141	/* show the window if not already done */
3142	if (!pContext->fMapped)
3143	{
3144	XMapWindow(pState->display, pContext->window);
3145	pContext->fMapped = true;
3146	}
3147	/* now swap the buffers, i.e. display the rendering result */
3148	glXSwapBuffers(pState->display, pContext->window);
3149	#endif
3150
3151	/*
3152	* Now we can reset the frame buffer association. Doing it earlier means no
3153	* output on darwin.
3154	*/
3155	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3156	return VINF_SUCCESS;
3157	}
3158
3159	#ifdef RT_OS_LINUX
3160	/**
3161	* X11 event handling thread
3162	* @param ThreadSelf thread handle
3163	* @param pvUser pointer to pState structure
3164	* @returns VBox status code
3165	*/
3166	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
3167	{
3168	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3169	while (!pState->bTerminate)
3170	{
3171	while (XPending(pState->display) > 0)
3172	{
3173	XEvent event;
3174	XNextEvent(pState->display, &event);
3175
3176	switch (event.type)
3177	{
3178	default:
3179	break;
3180	}
3181	}
3182	/* sleep for 16ms to not burn too many cycles */
3183	RTThreadSleep(16);
3184	}
3185	return VINF_SUCCESS;
3186	}
3187	#endif // RT_OS_LINUX
3188
3189
3190	/**
3191	* Create a new 3d context
3192	*
3193	* @returns VBox status code.
3194	* @param pThis VGA device instance data.
3195	* @param cid Context id
3196	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3197	*/
3198	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3199	{
3200	int rc;
3201	PVMSVGA3DCONTEXT pContext;
3202	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3203
3204	AssertReturn(pState, VERR_NO_MEMORY);
3205	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3206	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3207	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3208	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3209	#endif
3210
3211	Log(("vmsvga3dContextDefine id %x\n", cid));
3212	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3213	if (pState->idTestContext == SVGA_ID_INVALID)
3214	{
3215	pState->idTestContext = 207;
3216	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3217	AssertRCReturn(rc, rc);
3218	}
3219	#endif
3220
3221	if (cid == VMSVGA3D_SHARED_CTX_ID)
3222	pContext = &pState->SharedCtx;
3223	else
3224	{
3225	if (cid >= pState->cContexts)
3226	{
3227	/* Grow the array. */
3228	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3229	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3230	AssertReturn(pvNew, VERR_NO_MEMORY);
3231	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3232	while (pState->cContexts < cNew)
3233	{
3234	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3235	AssertReturn(pContext, VERR_NO_MEMORY);
3236	pContext->id = SVGA3D_INVALID_ID;
3237	pState->papContexts[pState->cContexts++] = pContext;
3238	}
3239	}
3240	/* If one already exists with this id, then destroy it now. */
3241	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3242	vmsvga3dContextDestroy(pThis, cid);
3243
3244	pContext = pState->papContexts[cid];
3245	}
3246
3247	/*
3248	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3249	*/
3250	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3251	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3252	{
3253	pSharedCtx = &pState->SharedCtx;
3254	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3255	{
3256	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3257	AssertLogRelRCReturn(rc, rc);
3258	}
3259	}
3260
3261	/*
3262	* Initialize the context.
3263	*/
3264	memset(pContext, 0, sizeof(*pContext));
3265	pContext->id = cid;
3266	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3267	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3268
3269	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3270	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3271	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3272	pContext->idFramebuffer = OPENGL_INVALID_ID;
3273	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3274	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3275
3276	rc = ShaderContextCreate(&pContext->pShaderContext);
3277	AssertRCReturn(rc, rc);
3278
3279	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3280	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3281
3282	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3283
3284	#ifdef RT_OS_WINDOWS
3285	/* Create a context window. */
3286	CREATESTRUCT cs;
3287	cs.lpCreateParams = NULL;
3288	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3289	# ifdef DEBUG_GFX_WINDOW
3290	cs.lpszName = (char *)RTMemAllocZ(256);
3291	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3292	# else
3293	cs.lpszName = NULL;
3294	# endif
3295	cs.lpszClass = 0;
3296	# ifdef DEBUG_GFX_WINDOW
3297	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3298	# else
3299	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3300	# endif
3301	cs.x = 0;
3302	cs.y = 0;
3303	cs.cx = pThis->svga.uWidth;
3304	cs.cy = pThis->svga.uHeight;
3305	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3306	cs.hMenu = NULL;
3307	cs.hInstance = pState->hInstance;
3308
3309	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3310	AssertRCReturn(rc, rc);
3311
3312	pContext->hdc = GetDC(pContext->hwnd);
3313	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3314
3315	PIXELFORMATDESCRIPTOR pfd = {
3316	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3317	1, /* version number */
3318	PFD_DRAW_TO_WINDOW \| /* support window */
3319	PFD_DOUBLEBUFFER \| /* support double buffering */
3320	PFD_SUPPORT_OPENGL, /* support OpenGL */
3321	PFD_TYPE_RGBA, /* RGBA type */
3322	24, /* 24-bit color depth */
3323	0, 0, 0, 0, 0, 0, /* color bits ignored */
3324	8, /* alpha buffer */
3325	0, /* shift bit ignored */
3326	0, /* no accumulation buffer */
3327	0, 0, 0, 0, /* accum bits ignored */
3328	16, /* set depth buffer */
3329	16, /* set stencil buffer */
3330	0, /* no auxiliary buffer */
3331	PFD_MAIN_PLANE, /* main layer */
3332	0, /* reserved */
3333	0, 0, 0 /* layer masks ignored */
3334	};
3335	int pixelFormat;
3336	BOOL ret;
3337
3338	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3339	/** @todo is this really necessary?? */
3340	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3341	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3342
3343	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3344	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3345
3346	pContext->hglrc = wglCreateContext(pContext->hdc);
3347	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3348
3349	if (pSharedCtx)
3350	{
3351	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3352	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3353	}
3354
3355	#elif defined(RT_OS_DARWIN)
3356	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3357
3358	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3359	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3360	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3361	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3362	pThis->svga.uWidth, pThis->svga.uHeight,
3363	pShareContext, pContext->fOtherProfile);
3364
3365	#else
3366	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3367
3368	if (pState->display == NULL)
3369	{
3370	/* get an X display and make sure we have glX 1.3 */
3371	pState->display = XOpenDisplay(0);
3372	Assert(pState->display);
3373	int glxMajor, glxMinor;
3374	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3375	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3376	/* start our X event handling thread */
3377	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3378	if (RT_FAILURE(rc))
3379	{
3380	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3381	return rc;
3382	}
3383	}
3384	int attrib[] =
3385	{
3386	GLX_RGBA,
3387	GLX_RED_SIZE, 1,
3388	GLX_GREEN_SIZE, 1,
3389	GLX_BLUE_SIZE, 1,
3390	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3391	GLX_DOUBLEBUFFER,
3392	None
3393	};
3394	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3395	XSetWindowAttributes swa;
3396	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3397	swa.border_pixel = 0;
3398	swa.background_pixel = 0;
3399	swa.event_mask = StructureNotifyMask \| ExposureMask;
3400	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3401	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3402	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3403	0, vi->depth, InputOutput,
3404	vi->visual, flags, &swa);
3405	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3406	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
3407
3408	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3409
3410	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3411	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3412	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3413	#endif
3414
3415	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3416
3417	/* NULL during the first PowerOn call. */
3418	if (pState->ext.glGenFramebuffers)
3419	{
3420	/* Create a framebuffer object for this context. */
3421	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3422	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3423
3424	/* Bind the object to the framebuffer target. */
3425	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3426	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3427
3428	/* Create read and draw framebuffer objects for this context. */
3429	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3430	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3431
3432	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3433	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3434
3435	}
3436	#if 0
3437	/** @todo move to shader lib!!! */
3438	/* Clear the screen */
3439	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3440
3441	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3442	glClearIndex(0);
3443	glClearDepth(1);
3444	glClearStencil(0xffff);
3445	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3446	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3447	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3448	if (pState->ext.glProvokingVertex)
3449	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3450	/** @todo move to shader lib!!! */
3451	#endif
3452	return VINF_SUCCESS;
3453	}
3454
3455
3456	/**
3457	* Create a new 3d context
3458	*
3459	* @returns VBox status code.
3460	* @param pThis VGA device instance data.
3461	* @param cid Context id
3462	*/
3463	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3464	{
3465	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3466	}
3467
3468	/**
3469	* Destroys a 3d context.
3470	*
3471	* @returns VBox status code.
3472	* @param pThis VGA device instance data.
3473	* @param pContext The context to destroy.
3474	* @param cid Context id
3475	*/
3476	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3477	{
3478	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3479	AssertReturn(pState, VERR_NO_MEMORY);
3480	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3481	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3482	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3483
3484	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3485
3486	/* Destroy all leftover pixel shaders. */
3487	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3488	{
3489	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3490	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3491	}
3492	if (pContext->paPixelShader)
3493	RTMemFree(pContext->paPixelShader);
3494
3495	/* Destroy all leftover vertex shaders. */
3496	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3497	{
3498	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3499	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3500	}
3501	if (pContext->paVertexShader)
3502	RTMemFree(pContext->paVertexShader);
3503
3504	if (pContext->state.paVertexShaderConst)
3505	RTMemFree(pContext->state.paVertexShaderConst);
3506	if (pContext->state.paPixelShaderConst)
3507	RTMemFree(pContext->state.paPixelShaderConst);
3508
3509	if (pContext->pShaderContext)
3510	{
3511	int rc = ShaderContextDestroy(pContext->pShaderContext);
3512	AssertRC(rc);
3513	}
3514
3515	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3516	{
3517	/* Unbind the object from the framebuffer target. */
3518	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3519	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3520	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3521	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3522
3523	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3524	{
3525	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3526	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3527	}
3528	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3529	{
3530	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3531	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3532	}
3533	}
3534	#ifdef RT_OS_WINDOWS
3535	wglMakeCurrent(pContext->hdc, NULL);
3536	wglDeleteContext(pContext->hglrc);
3537	ReleaseDC(pContext->hwnd, pContext->hdc);
3538
3539	/* Destroy the window we've created. */
3540	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3541	AssertRC(rc);
3542	#elif defined(RT_OS_DARWIN)
3543	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3544	#elif defined(RT_OS_LINUX)
3545	glXMakeCurrent(pState->display, None, NULL);
3546	glXDestroyContext(pState->display, pContext->glxContext);
3547	XDestroyWindow(pState->display, pContext->window);
3548	#endif
3549
3550	memset(pContext, 0, sizeof(*pContext));
3551	pContext->id = SVGA3D_INVALID_ID;
3552
3553	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3554	return VINF_SUCCESS;
3555	}
3556
3557	/**
3558	* Destroy an existing 3d context
3559	*
3560	* @returns VBox status code.
3561	* @param pThis VGA device instance data.
3562	* @param cid Context id
3563	*/
3564	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3565	{
3566	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3567	AssertReturn(pState, VERR_WRONG_ORDER);
3568
3569	/*
3570	* Resolve the context and hand it to the common worker function.
3571	*/
3572	if ( cid < pState->cContexts
3573	&& pState->papContexts[cid]->id == cid)
3574	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3575
3576	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3577	return VINF_SUCCESS;
3578	}
3579
3580	/**
3581	* Worker for vmsvga3dChangeMode that resizes a context.
3582	*
3583	* @param pThis The VGA device instance data.
3584	* @param pState The VMSVGA3d state.
3585	* @param pContext The context.
3586	*/
3587	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3588	{
3589	#ifdef RT_OS_WINDOWS
3590	/* Resize the window. */
3591	CREATESTRUCT cs;
3592	RT_ZERO(cs);
3593	cs.cx = pThis->svga.uWidth;
3594	cs.cy = pThis->svga.uHeight;
3595	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3596	AssertRC(rc);
3597
3598	#elif defined(RT_OS_DARWIN)
3599	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3600
3601	#elif defined(RT_OS_LINUX)
3602	XWindowChanges wc;
3603	wc.width = pThis->svga.uWidth;
3604	wc.height = pThis->svga.uHeight;
3605	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3606	#endif
3607	}
3608
3609	/* Handle resize */
3610	int vmsvga3dChangeMode(PVGASTATE pThis)
3611	{
3612	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3613	AssertReturn(pState, VERR_NO_MEMORY);
3614
3615	/* Resize the shared context too. */
3616	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3617	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3618
3619	/* Resize all active contexts. */
3620	for (uint32_t i = 0; i < pState->cContexts; i++)
3621	{
3622	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3623	if (pContext->id != SVGA3D_INVALID_ID)
3624	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3625	}
3626
3627	return VINF_SUCCESS;
3628	}
3629
3630
3631	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3632	{
3633	PVMSVGA3DCONTEXT pContext;
3634	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3635	AssertReturn(pState, VERR_NO_MEMORY);
3636	bool fModelViewChanged = false;
3637
3638	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3639
3640	if ( cid >= pState->cContexts
3641	\|\| pState->papContexts[cid]->id != cid)
3642	{
3643	Log(("vmsvga3dSetTransform invalid context id!\n"));
3644	return VERR_INVALID_PARAMETER;
3645	}
3646	pContext = pState->papContexts[cid];
3647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3648
3649	/* Save this matrix for vm state save/restore. */
3650	pContext->state.aTransformState[type].fValid = true;
3651	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3652	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3653
3654	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)));
3655	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)));
3656	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)));
3657	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)));
3658
3659	switch (type)
3660	{
3661	case SVGA3D_TRANSFORM_VIEW:
3662	/* View * World = Model View */
3663	glMatrixMode(GL_MODELVIEW);
3664	glLoadMatrixf(matrix);
3665	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3666	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3667	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3668	fModelViewChanged = true;
3669	break;
3670
3671	case SVGA3D_TRANSFORM_PROJECTION:
3672	{
3673	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix, false /* fPretransformed */);
3674	AssertRCReturn(rc, rc);
3675	break;
3676	}
3677
3678	case SVGA3D_TRANSFORM_TEXTURE0:
3679	glMatrixMode(GL_TEXTURE);
3680	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3681	glLoadMatrixf(matrix);
3682	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3683	break;
3684
3685	case SVGA3D_TRANSFORM_TEXTURE1:
3686	case SVGA3D_TRANSFORM_TEXTURE2:
3687	case SVGA3D_TRANSFORM_TEXTURE3:
3688	case SVGA3D_TRANSFORM_TEXTURE4:
3689	case SVGA3D_TRANSFORM_TEXTURE5:
3690	case SVGA3D_TRANSFORM_TEXTURE6:
3691	case SVGA3D_TRANSFORM_TEXTURE7:
3692	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3693	return VERR_INVALID_PARAMETER;
3694
3695	case SVGA3D_TRANSFORM_WORLD:
3696	/* View * World = Model View */
3697	glMatrixMode(GL_MODELVIEW);
3698	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3699	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3700	else
3701	glLoadIdentity();
3702	glMultMatrixf(matrix);
3703	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3704	fModelViewChanged = true;
3705	break;
3706
3707	case SVGA3D_TRANSFORM_WORLD1:
3708	case SVGA3D_TRANSFORM_WORLD2:
3709	case SVGA3D_TRANSFORM_WORLD3:
3710	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3711	return VERR_INVALID_PARAMETER;
3712
3713	default:
3714	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3715	return VERR_INVALID_PARAMETER;
3716	}
3717
3718	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3719	if (fModelViewChanged)
3720	{
3721	/* Reprogram the clip planes. */
3722	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3723	{
3724	if (pContext->state.aClipPlane[j].fValid == true)
3725	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3726	}
3727
3728	/* Reprogram the light data. */
3729	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3730	{
3731	if (pContext->state.aLightData[j].fValidData == true)
3732	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3733	}
3734	}
3735
3736	return VINF_SUCCESS;
3737	}
3738
3739	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3740	{
3741	PVMSVGA3DCONTEXT pContext;
3742	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3743	AssertReturn(pState, VERR_NO_MEMORY);
3744
3745	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3746
3747	if ( cid >= pState->cContexts
3748	\|\| pState->papContexts[cid]->id != cid)
3749	{
3750	Log(("vmsvga3dSetZRange invalid context id!\n"));
3751	return VERR_INVALID_PARAMETER;
3752	}
3753	pContext = pState->papContexts[cid];
3754	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3755
3756	pContext->state.zRange = zRange;
3757	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3758
3759	if (zRange.min < -1.0)
3760	zRange.min = -1.0;
3761	if (zRange.max > 1.0)
3762	zRange.max = 1.0;
3763
3764	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3765	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3766	return VINF_SUCCESS;
3767	}
3768
3769	/**
3770	* Convert SVGA blend op value to its OpenGL equivalent
3771	*/
3772	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3773	{
3774	switch (blendOp)
3775	{
3776	case SVGA3D_BLENDOP_ZERO:
3777	return GL_ZERO;
3778	case SVGA3D_BLENDOP_ONE:
3779	return GL_ONE;
3780	case SVGA3D_BLENDOP_SRCCOLOR:
3781	return GL_SRC_COLOR;
3782	case SVGA3D_BLENDOP_INVSRCCOLOR:
3783	return GL_ONE_MINUS_SRC_COLOR;
3784	case SVGA3D_BLENDOP_SRCALPHA:
3785	return GL_SRC_ALPHA;
3786	case SVGA3D_BLENDOP_INVSRCALPHA:
3787	return GL_ONE_MINUS_SRC_ALPHA;
3788	case SVGA3D_BLENDOP_DESTALPHA:
3789	return GL_DST_ALPHA;
3790	case SVGA3D_BLENDOP_INVDESTALPHA:
3791	return GL_ONE_MINUS_DST_ALPHA;
3792	case SVGA3D_BLENDOP_DESTCOLOR:
3793	return GL_DST_COLOR;
3794	case SVGA3D_BLENDOP_INVDESTCOLOR:
3795	return GL_ONE_MINUS_DST_COLOR;
3796	case SVGA3D_BLENDOP_SRCALPHASAT:
3797	return GL_SRC_ALPHA_SATURATE;
3798	case SVGA3D_BLENDOP_BLENDFACTOR:
3799	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3800	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3801	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3802	default:
3803	AssertFailed();
3804	return GL_ONE;
3805	}
3806	}
3807
3808	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3809	{
3810	switch (blendEq)
3811	{
3812	case SVGA3D_BLENDEQ_ADD:
3813	return GL_FUNC_ADD;
3814	case SVGA3D_BLENDEQ_SUBTRACT:
3815	return GL_FUNC_SUBTRACT;
3816	case SVGA3D_BLENDEQ_REVSUBTRACT:
3817	return GL_FUNC_REVERSE_SUBTRACT;
3818	case SVGA3D_BLENDEQ_MINIMUM:
3819	return GL_MIN;
3820	case SVGA3D_BLENDEQ_MAXIMUM:
3821	return GL_MAX;
3822	default:
3823	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3824	return GL_FUNC_ADD;
3825	}
3826	}
3827
3828	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3829	{
3830	switch (cmpFunc)
3831	{
3832	case SVGA3D_CMP_NEVER:
3833	return GL_NEVER;
3834	case SVGA3D_CMP_LESS:
3835	return GL_LESS;
3836	case SVGA3D_CMP_EQUAL:
3837	return GL_EQUAL;
3838	case SVGA3D_CMP_LESSEQUAL:
3839	return GL_LEQUAL;
3840	case SVGA3D_CMP_GREATER:
3841	return GL_GREATER;
3842	case SVGA3D_CMP_NOTEQUAL:
3843	return GL_NOTEQUAL;
3844	case SVGA3D_CMP_GREATEREQUAL:
3845	return GL_GEQUAL;
3846	case SVGA3D_CMP_ALWAYS:
3847	return GL_ALWAYS;
3848	default:
3849	AssertFailed();
3850	return GL_LESS;
3851	}
3852	}
3853
3854	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3855	{
3856	switch (stencilOp)
3857	{
3858	case SVGA3D_STENCILOP_KEEP:
3859	return GL_KEEP;
3860	case SVGA3D_STENCILOP_ZERO:
3861	return GL_ZERO;
3862	case SVGA3D_STENCILOP_REPLACE:
3863	return GL_REPLACE;
3864	case SVGA3D_STENCILOP_INCRSAT:
3865	return GL_INCR_WRAP;
3866	case SVGA3D_STENCILOP_DECRSAT:
3867	return GL_DECR_WRAP;
3868	case SVGA3D_STENCILOP_INVERT:
3869	return GL_INVERT;
3870	case SVGA3D_STENCILOP_INCR:
3871	return GL_INCR;
3872	case SVGA3D_STENCILOP_DECR:
3873	return GL_DECR;
3874	default:
3875	AssertFailed();
3876	return GL_KEEP;
3877	}
3878	}
3879
3880	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3881	{
3882	uint32_t val = UINT32_MAX; /* Shut up MSC. */
3883	PVMSVGA3DCONTEXT pContext;
3884	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3885	AssertReturn(pState, VERR_NO_MEMORY);
3886
3887	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3888
3889	if ( cid >= pState->cContexts
3890	\|\| pState->papContexts[cid]->id != cid)
3891	{
3892	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3893	return VERR_INVALID_PARAMETER;
3894	}
3895	pContext = pState->papContexts[cid];
3896	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3897
3898	for (unsigned i = 0; i < cRenderStates; i++)
3899	{
3900	GLenum enableCap = ~(GLenum)0;
3901	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3902	/* Save the render state for vm state saving. */
3903	if (pRenderState[i].state < SVGA3D_RS_MAX)
3904	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3905
3906	switch (pRenderState[i].state)
3907	{
3908	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3909	enableCap = GL_DEPTH_TEST;
3910	val = pRenderState[i].uintValue;
3911	break;
3912
3913	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3914	glDepthMask(!!pRenderState[i].uintValue);
3915	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3916	break;
3917
3918	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3919	enableCap = GL_ALPHA_TEST;
3920	val = pRenderState[i].uintValue;
3921	break;
3922
3923	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3924	enableCap = GL_DITHER;
3925	val = pRenderState[i].uintValue;
3926	break;
3927
3928	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3929	enableCap = GL_FOG;
3930	val = pRenderState[i].uintValue;
3931	break;
3932
3933	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3934	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3935	break;
3936
3937	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3938	enableCap = GL_LIGHTING;
3939	val = pRenderState[i].uintValue;
3940	break;
3941
3942	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3943	/* not applicable */
3944	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3945	break;
3946
3947	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3948	enableCap = GL_POINT_SPRITE_ARB;
3949	val = pRenderState[i].uintValue;
3950	break;
3951
3952	case SVGA3D_RS_POINTSIZE: /* float */
3953	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3954	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3955	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3956	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3957	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3958
3959	glPointSize(pRenderState[i].floatValue);
3960	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3961	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3962	break;
3963
3964	case SVGA3D_RS_POINTSIZEMIN: /* float */
3965	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3966	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3967	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3968	break;
3969
3970	case SVGA3D_RS_POINTSIZEMAX: /* float */
3971	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3972	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3973	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3974	break;
3975
3976	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3977	case SVGA3D_RS_POINTSCALE_A: /* float */
3978	case SVGA3D_RS_POINTSCALE_B: /* float */
3979	case SVGA3D_RS_POINTSCALE_C: /* float */
3980	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3981	break;
3982
3983	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3984	{
3985	GLfloat color[4]; /* red, green, blue, alpha */
3986
3987	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3988
3989	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3991	break;
3992	}
3993
3994	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3995	{
3996	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3997	for (uint32_t j = 0; j <= 5; j++)
3998	{
3999	if (pRenderState[i].uintValue & RT_BIT(j))
4000	glEnable(GL_CLIP_PLANE0 + j);
4001	else
4002	glDisable(GL_CLIP_PLANE0 + j);
4003	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4004	}
4005	break;
4006	}
4007
4008	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
4009	{
4010	GLfloat color[4]; /* red, green, blue, alpha */
4011
4012	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
4013
4014	glFogfv(GL_FOG_COLOR, color);
4015	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4016	break;
4017	}
4018
4019	case SVGA3D_RS_FOGSTART: /* float */
4020	glFogf(GL_FOG_START, pRenderState[i].floatValue);
4021	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4022	break;
4023
4024	case SVGA3D_RS_FOGEND: /* float */
4025	glFogf(GL_FOG_END, pRenderState[i].floatValue);
4026	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4027	break;
4028
4029	case SVGA3D_RS_FOGDENSITY: /* float */
4030	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
4031	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4032	break;
4033
4034	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
4035	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
4036	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4037	break;
4038
4039	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
4040	{
4041	SVGA3dFogMode mode;
4042	mode.uintValue = pRenderState[i].uintValue;
4043
4044	enableCap = GL_FOG_MODE;
4045	switch (mode.s.function)
4046	{
4047	case SVGA3D_FOGFUNC_EXP:
4048	val = GL_EXP;
4049	break;
4050	case SVGA3D_FOGFUNC_EXP2:
4051	val = GL_EXP2;
4052	break;
4053	case SVGA3D_FOGFUNC_LINEAR:
4054	val = GL_LINEAR;
4055	break;
4056	default:
4057	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4058	break;
4059	}
4060
4061	/** @todo how to switch between vertex and pixel fog modes??? */
4062	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4063	#if 0
4064	/* The fog type determines the render state. */
4065	switch (mode.s.type)
4066	{
4067	case SVGA3D_FOGTYPE_VERTEX:
4068	renderState = D3DRS_FOGVERTEXMODE;
4069	break;
4070	case SVGA3D_FOGTYPE_PIXEL:
4071	renderState = D3DRS_FOGTABLEMODE;
4072	break;
4073	default:
4074	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4075	break;
4076	}
4077	#endif
4078
4079	/* Set the fog base to depth or range. */
4080	switch (mode.s.base)
4081	{
4082	case SVGA3D_FOGBASE_DEPTHBASED:
4083	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4084	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4085	break;
4086	case SVGA3D_FOGBASE_RANGEBASED:
4087	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4088	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4089	break;
4090	default:
4091	/* ignore */
4092	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4093	break;
4094	}
4095	break;
4096	}
4097
4098	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4099	{
4100	SVGA3dFillMode mode;
4101
4102	mode.uintValue = pRenderState[i].uintValue;
4103
4104	switch (mode.s.mode)
4105	{
4106	case SVGA3D_FILLMODE_POINT:
4107	val = GL_POINT;
4108	break;
4109	case SVGA3D_FILLMODE_LINE:
4110	val = GL_LINE;
4111	break;
4112	case SVGA3D_FILLMODE_FILL:
4113	val = GL_FILL;
4114	break;
4115	default:
4116	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4117	break;
4118	}
4119	/* @note only front and back faces */
4120	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4121	glPolygonMode(GL_FRONT_AND_BACK, val);
4122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4123	break;
4124	}
4125
4126	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4127	switch (pRenderState[i].uintValue)
4128	{
4129	case SVGA3D_SHADEMODE_FLAT:
4130	val = GL_FLAT;
4131	break;
4132
4133	case SVGA3D_SHADEMODE_SMOOTH:
4134	val = GL_SMOOTH;
4135	break;
4136
4137	default:
4138	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4139	break;
4140	}
4141
4142	glShadeModel(val);
4143	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4144	break;
4145
4146	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4147	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4148	/** @todo */
4149	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4150	/*
4151	renderState = D3DRS_LINEPATTERN;
4152	val = pRenderState[i].uintValue;
4153	*/
4154	break;
4155
4156	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4157	enableCap = GL_LINE_SMOOTH;
4158	val = pRenderState[i].uintValue;
4159	break;
4160
4161	case SVGA3D_RS_LINEWIDTH: /* float */
4162	glLineWidth(pRenderState[i].floatValue);
4163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4164	break;
4165
4166	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4167	{
4168	/* Refresh the blending state based on the new enable setting. */
4169	SVGA3dRenderState renderstate[2];
4170
4171	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4172	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4173	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4174	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4175
4176	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4177	AssertRCReturn(rc, rc);
4178
4179	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4180	continue; /* ignore if blend is already enabled */
4181	/* no break */
4182	}
4183
4184	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4185	enableCap = GL_BLEND;
4186	val = pRenderState[i].uintValue;
4187	break;
4188
4189	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4190	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4191	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4192	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4193	{
4194	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4195	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4196
4197	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4198	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4199	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4200	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4201	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4202	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4203	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4204	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4205
4206	switch (pRenderState[i].state)
4207	{
4208	case SVGA3D_RS_SRCBLEND:
4209	srcRGB = blendop;
4210	break;
4211	case SVGA3D_RS_DSTBLEND:
4212	dstRGB = blendop;
4213	break;
4214	case SVGA3D_RS_SRCBLENDALPHA:
4215	srcAlpha = blendop;
4216	break;
4217	case SVGA3D_RS_DSTBLENDALPHA:
4218	dstAlpha = blendop;
4219	break;
4220	default:
4221	/* not possible; shut up gcc */
4222	AssertFailed();
4223	break;
4224	}
4225
4226	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4227	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4228	else
4229	glBlendFunc(srcRGB, dstRGB);
4230	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4231	break;
4232	}
4233
4234	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4235	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4236	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4237	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4238	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4239	else
4240	{
4241	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4242	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4243	#else
4244	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4245	#endif
4246	}
4247	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4248	break;
4249
4250	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4251	{
4252	GLfloat red, green, blue, alpha;
4253
4254	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4255
4256	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4257	glBlendColor(red, green, blue, alpha);
4258	#else
4259	pState->ext.glBlendColor(red, green, blue, alpha);
4260	#endif
4261	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4262	break;
4263	}
4264
4265	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4266	{
4267	GLenum mode = GL_BACK; /* default for OpenGL */
4268
4269	switch (pRenderState[i].uintValue)
4270	{
4271	case SVGA3D_FACE_NONE:
4272	break;
4273	case SVGA3D_FACE_FRONT:
4274	mode = GL_FRONT;
4275	break;
4276	case SVGA3D_FACE_BACK:
4277	mode = GL_BACK;
4278	break;
4279	case SVGA3D_FACE_FRONT_BACK:
4280	mode = GL_FRONT_AND_BACK;
4281	break;
4282	default:
4283	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4284	break;
4285	}
4286	enableCap = GL_CULL_FACE;
4287	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4288	{
4289	glCullFace(mode);
4290	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4291	val = 1;
4292	}
4293	else
4294	val = 0;
4295	break;
4296	}
4297
4298	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4299	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4300	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4301	break;
4302
4303	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4304	{
4305	GLclampf ref;
4306
4307	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4308	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4309	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4310	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4311	break;
4312	}
4313
4314	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4315	{
4316	GLint func;
4317
4318	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4319	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4320	glAlphaFunc(func, pRenderState[i].floatValue);
4321	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4322	break;
4323	}
4324
4325	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4326	enableCap = GL_STENCIL_TEST;
4327	val = pRenderState[i].uintValue;
4328	break;
4329
4330	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4331	case SVGA3D_RS_STENCILREF: /* uint32_t */
4332	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4333	{
4334	GLint func, ref;
4335	GLuint mask;
4336
4337	glGetIntegerv(GL_STENCIL_FUNC, &func);
4338	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4339	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4340	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4341	glGetIntegerv(GL_STENCIL_REF, &ref);
4342	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4343
4344	switch (pRenderState[i].state)
4345	{
4346	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4347	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4348	break;
4349
4350	case SVGA3D_RS_STENCILREF: /* uint32_t */
4351	ref = pRenderState[i].uintValue;
4352	break;
4353
4354	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4355	mask = pRenderState[i].uintValue;
4356	break;
4357
4358	default:
4359	/* not possible; shut up gcc */
4360	AssertFailed();
4361	break;
4362	}
4363
4364	glStencilFunc(func, ref, mask);
4365	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4366	break;
4367	}
4368
4369	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4370	glStencilMask(pRenderState[i].uintValue);
4371	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4372	break;
4373
4374	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4375	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4376	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4377	{
4378	GLint sfail, dpfail, dppass;
4379	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4380
4381	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4382	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4383	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4384	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4385	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4386	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4387
4388	switch (pRenderState[i].state)
4389	{
4390	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4391	sfail = stencilop;
4392	break;
4393	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4394	dpfail = stencilop;
4395	break;
4396	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4397	dppass = stencilop;
4398	break;
4399	default:
4400	/* not possible; shut up gcc */
4401	AssertFailed();
4402	break;
4403	}
4404	glStencilOp(sfail, dpfail, dppass);
4405	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4406	break;
4407	}
4408
4409	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4410	/* @note GL_EXT_stencil_two_side required! */
4411	if (pState->ext.fEXT_stencil_two_side)
4412	{
4413	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4414	val = pRenderState[i].uintValue;
4415	}
4416	else
4417	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4418	break;
4419
4420	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4421	{
4422	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4423	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4424	*/
4425	GLint ref;
4426	GLuint mask;
4427
4428	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4429	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4430	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4431	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4432
4433	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4434	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4435	break;
4436	}
4437
4438	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4439	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4440	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4441	{
4442	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4443	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4444	*/
4445	GLint sfail, dpfail, dppass;
4446	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4447
4448	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4449	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4450	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4451	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4452	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4453	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4454
4455	switch (pRenderState[i].state)
4456	{
4457	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4458	sfail = stencilop;
4459	break;
4460	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4461	dpfail = stencilop;
4462	break;
4463	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4464	dppass = stencilop;
4465	break;
4466	default:
4467	/* not possible; shut up gcc */
4468	AssertFailed();
4469	break;
4470	}
4471	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4472	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4473	break;
4474	}
4475
4476	case SVGA3D_RS_ZBIAS: /* float */
4477	/** @todo unknown meaning; depth bias is not identical
4478	renderState = D3DRS_DEPTHBIAS;
4479	val = pRenderState[i].uintValue;
4480	*/
4481	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4482	break;
4483
4484	case SVGA3D_RS_DEPTHBIAS: /* float */
4485	{
4486	GLfloat factor;
4487
4488	/** @todo not sure if the d3d & ogl definitions are identical. */
4489
4490	/* Do not change the factor part. */
4491	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4492	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4493
4494	glPolygonOffset(factor, pRenderState[i].floatValue);
4495	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4496	break;
4497	}
4498
4499	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4500	{
4501	GLfloat units;
4502
4503	/** @todo not sure if the d3d & ogl definitions are identical. */
4504
4505	/* Do not change the factor part. */
4506	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4507	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4508
4509	glPolygonOffset(pRenderState[i].floatValue, units);
4510	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4511	break;
4512	}
4513
4514	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4515	{
4516	GLboolean red, green, blue, alpha;
4517	SVGA3dColorMask mask;
4518
4519	mask.uintValue = pRenderState[i].uintValue;
4520
4521	red = mask.s.red;
4522	green = mask.s.green;
4523	blue = mask.s.blue;
4524	alpha = mask.s.alpha;
4525
4526	glColorMask(red, green, blue, alpha);
4527	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4528	break;
4529	}
4530
4531	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4532	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4533	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4534	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4535	break;
4536
4537	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4538	enableCap = GL_SCISSOR_TEST;
4539	val = pRenderState[i].uintValue;
4540	break;
4541
4542	#if 0
4543	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4544	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4545	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4546	val = pRenderState[i].uintValue;
4547	break;
4548
4549	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4550	renderState = D3DRS_SPECULARMATERIALSOURCE;
4551	val = pRenderState[i].uintValue;
4552	break;
4553
4554	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4555	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4556	val = pRenderState[i].uintValue;
4557	break;
4558
4559	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4560	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4561	val = pRenderState[i].uintValue;
4562	break;
4563	#endif
4564
4565	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4566	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4567	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4568	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4569	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4570	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4571	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4572	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4573	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4574	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4575	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4576	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4577	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4578	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4579	break;
4580
4581	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4582	case SVGA3D_RS_TWEENFACTOR: /* float */
4583	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4584	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4585	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4586	break;
4587
4588	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4589	enableCap = GL_MULTISAMPLE;
4590	val = pRenderState[i].uintValue;
4591	break;
4592
4593	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4594	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4595	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4596	break;
4597
4598	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4599	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4600	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4601	/*
4602	renderState = D3DRS_COORDINATETYPE;
4603	val = pRenderState[i].uintValue;
4604	*/
4605	break;
4606
4607	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4608	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4609	/* Invert the selected mode because of y-inversion (?) */
4610	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4611	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4612	break;
4613
4614	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4615	//AssertFailed();
4616	/*
4617	D3DRS_SRGBWRITEENABLE ??
4618	renderState = D3DRS_OUTPUTGAMMA;
4619	val = pRenderState[i].uintValue;
4620	*/
4621	break;
4622
4623	#if 0
4624
4625	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4626	//AssertFailed();
4627	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4628	val = pRenderState[i].uintValue;
4629	break;
4630
4631	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4632	renderState = D3DRS_TEXTUREFACTOR;
4633	val = pRenderState[i].uintValue;
4634	break;
4635
4636	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4637	renderState = D3DRS_LOCALVIEWER;
4638	val = pRenderState[i].uintValue;
4639	break;
4640
4641	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4642	AssertFailed();
4643	/*
4644	renderState = D3DRS_ZVISIBLE;
4645	val = pRenderState[i].uintValue;
4646	*/
4647	break;
4648
4649	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4650	renderState = D3DRS_CLIPPING;
4651	val = pRenderState[i].uintValue;
4652	break;
4653
4654	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4655	glTexParameter GL_TEXTURE_WRAP_S
4656	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4657	renderState = D3DRS_WRAP0;
4658	val = pRenderState[i].uintValue;
4659	break;
4660
4661	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4662	glTexParameter GL_TEXTURE_WRAP_T
4663	renderState = D3DRS_WRAP1;
4664	val = pRenderState[i].uintValue;
4665	break;
4666
4667	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4668	glTexParameter GL_TEXTURE_WRAP_R
4669	renderState = D3DRS_WRAP2;
4670	val = pRenderState[i].uintValue;
4671	break;
4672
4673
4674	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4675	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4676	val = pRenderState[i].uintValue;
4677	break;
4678
4679
4680	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4681	renderState = D3DRS_BLENDOPALPHA;
4682	val = pRenderState[i].uintValue;
4683	break;
4684
4685	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4686	AssertFailed();
4687	/*
4688	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4689	val = pRenderState[i].uintValue;
4690	*/
4691	break;
4692
4693	#endif
4694	default:
4695	AssertFailed();
4696	break;
4697	}
4698
4699	if (enableCap != ~(GLenum)0)
4700	{
4701	if (val)
4702	glEnable(enableCap);
4703	else
4704	glDisable(enableCap);
4705	}
4706	}
4707
4708	return VINF_SUCCESS;
4709	}
4710
4711	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4712	{
4713	PVMSVGA3DCONTEXT pContext;
4714	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4715	PVMSVGA3DSURFACE pRenderTarget;
4716
4717	AssertReturn(pState, VERR_NO_MEMORY);
4718	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4719	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4720
4721	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4722
4723	if ( cid >= pState->cContexts
4724	\|\| pState->papContexts[cid]->id != cid)
4725	{
4726	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4727	return VERR_INVALID_PARAMETER;
4728	}
4729	pContext = pState->papContexts[cid];
4730	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4731
4732	/* Save for vm state save/restore. */
4733	pContext->state.aRenderTargets[type] = target.sid;
4734
4735	if (target.sid == SVGA3D_INVALID_ID)
4736	{
4737	/* Disable render target. */
4738	switch (type)
4739	{
4740	case SVGA3D_RT_DEPTH:
4741	case SVGA3D_RT_STENCIL:
4742	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4743	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4744	break;
4745
4746	case SVGA3D_RT_COLOR0:
4747	case SVGA3D_RT_COLOR1:
4748	case SVGA3D_RT_COLOR2:
4749	case SVGA3D_RT_COLOR3:
4750	case SVGA3D_RT_COLOR4:
4751	case SVGA3D_RT_COLOR5:
4752	case SVGA3D_RT_COLOR6:
4753	case SVGA3D_RT_COLOR7:
4754	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4755	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4756	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4757	break;
4758
4759	default:
4760	AssertFailedReturn(VERR_INVALID_PARAMETER);
4761	}
4762	return VINF_SUCCESS;
4763	}
4764
4765	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4766	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4767	pRenderTarget = pState->papSurfaces[target.sid];
4768
4769	switch (type)
4770	{
4771	case SVGA3D_RT_DEPTH:
4772	case SVGA3D_RT_STENCIL:
4773	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4774	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4775	{
4776	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
4777	pContext = &pState->SharedCtx;
4778	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4779
4780	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4781	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4782
4783	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4784	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4785
4786	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4787	pRenderTarget->internalFormatGL,
4788	pRenderTarget->pMipmapLevels[0].size.width,
4789	pRenderTarget->pMipmapLevels[0].size.height);
4790	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4791
4792	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4793	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4794
4795	pContext = pState->papContexts[cid];
4796	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4797	pRenderTarget->idWeakContextAssociation = cid;
4798	}
4799
4800	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4801	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4802	Assert(!pRenderTarget->fDirty);
4803	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4804
4805	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4806
4807	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4808	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4809	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4810	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4811	break;
4812
4813	case SVGA3D_RT_COLOR0:
4814	case SVGA3D_RT_COLOR1:
4815	case SVGA3D_RT_COLOR2:
4816	case SVGA3D_RT_COLOR3:
4817	case SVGA3D_RT_COLOR4:
4818	case SVGA3D_RT_COLOR5:
4819	case SVGA3D_RT_COLOR6:
4820	case SVGA3D_RT_COLOR7:
4821	{
4822	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4823	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4824	{
4825	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));
4826	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4827	AssertRCReturn(rc, rc);
4828	}
4829
4830	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4831	Assert(!pRenderTarget->fDirty);
4832
4833	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4834
4835	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4836	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4837
4838	pContext->sidRenderTarget = target.sid;
4839
4840	#ifdef DEBUG
4841	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4842	if (status != GL_FRAMEBUFFER_COMPLETE)
4843	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4844	#endif
4845	/** @todo use glDrawBuffers too? */
4846	break;
4847	}
4848
4849	default:
4850	AssertFailedReturn(VERR_INVALID_PARAMETER);
4851	}
4852
4853	return VINF_SUCCESS;
4854	}
4855
4856	#if 0
4857	/**
4858	* Convert SVGA texture combiner value to its D3D equivalent
4859	*/
4860	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4861	{
4862	switch (value)
4863	{
4864	case SVGA3D_TC_DISABLE:
4865	return D3DTOP_DISABLE;
4866	case SVGA3D_TC_SELECTARG1:
4867	return D3DTOP_SELECTARG1;
4868	case SVGA3D_TC_SELECTARG2:
4869	return D3DTOP_SELECTARG2;
4870	case SVGA3D_TC_MODULATE:
4871	return D3DTOP_MODULATE;
4872	case SVGA3D_TC_ADD:
4873	return D3DTOP_ADD;
4874	case SVGA3D_TC_ADDSIGNED:
4875	return D3DTOP_ADDSIGNED;
4876	case SVGA3D_TC_SUBTRACT:
4877	return D3DTOP_SUBTRACT;
4878	case SVGA3D_TC_BLENDTEXTUREALPHA:
4879	return D3DTOP_BLENDTEXTUREALPHA;
4880	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4881	return D3DTOP_BLENDDIFFUSEALPHA;
4882	case SVGA3D_TC_BLENDCURRENTALPHA:
4883	return D3DTOP_BLENDCURRENTALPHA;
4884	case SVGA3D_TC_BLENDFACTORALPHA:
4885	return D3DTOP_BLENDFACTORALPHA;
4886	case SVGA3D_TC_MODULATE2X:
4887	return D3DTOP_MODULATE2X;
4888	case SVGA3D_TC_MODULATE4X:
4889	return D3DTOP_MODULATE4X;
4890	case SVGA3D_TC_DSDT:
4891	AssertFailed(); /** @todo ??? */
4892	return D3DTOP_DISABLE;
4893	case SVGA3D_TC_DOTPRODUCT3:
4894	return D3DTOP_DOTPRODUCT3;
4895	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4896	return D3DTOP_BLENDTEXTUREALPHAPM;
4897	case SVGA3D_TC_ADDSIGNED2X:
4898	return D3DTOP_ADDSIGNED2X;
4899	case SVGA3D_TC_ADDSMOOTH:
4900	return D3DTOP_ADDSMOOTH;
4901	case SVGA3D_TC_PREMODULATE:
4902	return D3DTOP_PREMODULATE;
4903	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4904	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4905	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4906	return D3DTOP_MODULATECOLOR_ADDALPHA;
4907	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4908	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4909	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4910	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4911	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4912	return D3DTOP_BUMPENVMAPLUMINANCE;
4913	case SVGA3D_TC_MULTIPLYADD:
4914	return D3DTOP_MULTIPLYADD;
4915	case SVGA3D_TC_LERP:
4916	return D3DTOP_LERP;
4917	default:
4918	AssertFailed();
4919	return D3DTOP_DISABLE;
4920	}
4921	}
4922
4923	/**
4924	* Convert SVGA texture arg data value to its D3D equivalent
4925	*/
4926	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4927	{
4928	switch (value)
4929	{
4930	case SVGA3D_TA_CONSTANT:
4931	return D3DTA_CONSTANT;
4932	case SVGA3D_TA_PREVIOUS:
4933	return D3DTA_CURRENT; /* current = previous */
4934	case SVGA3D_TA_DIFFUSE:
4935	return D3DTA_DIFFUSE;
4936	case SVGA3D_TA_TEXTURE:
4937	return D3DTA_TEXTURE;
4938	case SVGA3D_TA_SPECULAR:
4939	return D3DTA_SPECULAR;
4940	default:
4941	AssertFailed();
4942	return 0;
4943	}
4944	}
4945
4946	/**
4947	* Convert SVGA texture transform flag value to its D3D equivalent
4948	*/
4949	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4950	{
4951	switch (value)
4952	{
4953	case SVGA3D_TEX_TRANSFORM_OFF:
4954	return D3DTTFF_DISABLE;
4955	case SVGA3D_TEX_TRANSFORM_S:
4956	return D3DTTFF_COUNT1; /** @todo correct? */
4957	case SVGA3D_TEX_TRANSFORM_T:
4958	return D3DTTFF_COUNT2; /** @todo correct? */
4959	case SVGA3D_TEX_TRANSFORM_R:
4960	return D3DTTFF_COUNT3; /** @todo correct? */
4961	case SVGA3D_TEX_TRANSFORM_Q:
4962	return D3DTTFF_COUNT4; /** @todo correct? */
4963	case SVGA3D_TEX_PROJECTED:
4964	return D3DTTFF_PROJECTED;
4965	default:
4966	AssertFailed();
4967	return 0;
4968	}
4969	}
4970	#endif
4971
4972	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4973	{
4974	switch (value)
4975	{
4976	case SVGA3D_TEX_ADDRESS_WRAP:
4977	return GL_REPEAT;
4978	case SVGA3D_TEX_ADDRESS_MIRROR:
4979	return GL_MIRRORED_REPEAT;
4980	case SVGA3D_TEX_ADDRESS_CLAMP:
4981	return GL_CLAMP_TO_EDGE;
4982	case SVGA3D_TEX_ADDRESS_BORDER:
4983	return GL_CLAMP_TO_BORDER;
4984	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4985	AssertFailed();
4986	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4987
4988	case SVGA3D_TEX_ADDRESS_EDGE:
4989	case SVGA3D_TEX_ADDRESS_INVALID:
4990	default:
4991	AssertFailed();
4992	return GL_REPEAT; /* default */
4993	}
4994	}
4995
4996	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4997	{
4998	switch (value)
4999	{
5000	case SVGA3D_TEX_FILTER_NONE:
5001	case SVGA3D_TEX_FILTER_LINEAR:
5002	return GL_LINEAR;
5003	case SVGA3D_TEX_FILTER_NEAREST:
5004	return GL_NEAREST;
5005	case SVGA3D_TEX_FILTER_ANISOTROPIC:
5006	/** @todo */
5007	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
5008	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
5009	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
5010	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
5011	default:
5012	AssertFailed();
5013	return GL_LINEAR; /* default */
5014	}
5015	}
5016
5017	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
5018	{
5019	/* flip the red and blue bytes */
5020	uint8_t blue = value & 0xff;
5021	uint8_t red = (value >> 16) & 0xff;
5022	return (value & 0xff00ff00) \| red \| (blue << 16);
5023	}
5024
5025	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
5026	{
5027	GLenum val = ~(GLenum)0; /* Shut up MSC. */
5028	GLenum currentStage = ~(GLenum)0;
5029	PVMSVGA3DCONTEXT pContext;
5030	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5031	AssertReturn(pState, VERR_NO_MEMORY);
5032
5033	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
5034
5035	if ( cid >= pState->cContexts
5036	\|\| pState->papContexts[cid]->id != cid)
5037	{
5038	Log(("vmsvga3dSetTextureState invalid context id!\n"));
5039	return VERR_INVALID_PARAMETER;
5040	}
5041	pContext = pState->papContexts[cid];
5042	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5043
5044	for (unsigned i = 0; i < cTextureStates; i++)
5045	{
5046	GLenum textureType = ~(GLenum)0;
5047	#if 0
5048	GLenum samplerType = ~(GLenum)0;
5049	#endif
5050
5051	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));
5052	/* Record the texture state for vm state saving. */
5053	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5054	&& pTextureState[i].name < SVGA3D_TS_MAX)
5055	{
5056	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5057	}
5058
5059	/* Active the right texture unit for subsequent texture state changes. */
5060	if (pTextureState[i].stage != currentStage \|\| i == 0)
5061	{
5062	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5063	* size of aSidActiveTexture and for binding/unbinding we cannot exceed it. */
5064	if (pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE)
5065	{
5066	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5067	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5068	currentStage = pTextureState[i].stage;
5069	}
5070	else
5071	{
5072	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5073	continue;
5074	}
5075	}
5076
5077	switch (pTextureState[i].name)
5078	{
5079	case SVGA3D_TS_BUMPENVMAT00: /* float */
5080	case SVGA3D_TS_BUMPENVMAT01: /* float */
5081	case SVGA3D_TS_BUMPENVMAT10: /* float */
5082	case SVGA3D_TS_BUMPENVMAT11: /* float */
5083	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5084	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5085	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5086	break;
5087
5088	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5089	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5090	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5091	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5092	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5093	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5094	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5095	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5096	/** @todo not used by MesaGL */
5097	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5098	break;
5099	#if 0
5100
5101	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5102	textureType = D3DTSS_TEXCOORDINDEX;
5103	val = pTextureState[i].value;
5104	break;
5105
5106	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5107	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5108	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5109	break;
5110	#endif
5111
5112	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5113	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5114	{
5115	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5116	currentStage, pTextureState[i].value, pContext->aSidActiveTexture[currentStage]));
5117
5118	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5119	/* Unselect the currently associated texture. */
5120	glBindTexture(GL_TEXTURE_2D, 0);
5121	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5122	/* Necessary for the fixed pipeline. */
5123	glDisable(GL_TEXTURE_2D);
5124	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5125	}
5126	else
5127	{
5128	uint32_t sid = pTextureState[i].value;
5129
5130	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5131	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5132
5133	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5134
5135	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5136	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width,
5137	pSurface->pMipmapLevels[0].size.height, pContext->aSidActiveTexture[currentStage]));
5138
5139	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5140	{
5141	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5142	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5143	AssertRCReturn(rc, rc);
5144	}
5145
5146	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5147	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5148
5149	/* Necessary for the fixed pipeline. */
5150	glEnable(GL_TEXTURE_2D);
5151	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5152
5153	if (pContext->aSidActiveTexture[currentStage] != sid)
5154	{
5155	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5156	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5157	{
5158	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5159	{
5160	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5161
5162	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5163	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5164	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5165	}
5166	}
5167	}
5168	pContext->aSidActiveTexture[currentStage] = sid;
5169	}
5170	/* Finished; continue with the next one. */
5171	continue;
5172
5173	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5174	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5175	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5176	break;
5177
5178	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5179	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5180	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5181	break;
5182
5183	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5184	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5185	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5186	break;
5187
5188	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5189	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5190	{
5191	uint32_t mipFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MIPFILTER].value;
5192	uint32_t minFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MINFILTER].value;
5193
5194	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5195	textureType = GL_TEXTURE_MIN_FILTER;
5196	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5197	{
5198	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5199	{
5200	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5201	val = GL_NEAREST_MIPMAP_LINEAR;
5202	else
5203	val = GL_NEAREST_MIPMAP_NEAREST;
5204	}
5205	else
5206	{
5207	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5208	val = GL_LINEAR_MIPMAP_LINEAR;
5209	else
5210	val = GL_LINEAR_MIPMAP_NEAREST;
5211	}
5212	}
5213	else
5214	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5215	break;
5216	}
5217
5218	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5219	textureType = GL_TEXTURE_MAG_FILTER;
5220	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5221	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5222	break;
5223
5224	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5225	{
5226	GLfloat color[4]; /* red, green, blue, alpha */
5227
5228	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5229
5230	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5231	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5232	break;
5233	}
5234
5235	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5236	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5237	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5238	break;
5239
5240	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5241	textureType = GL_TEXTURE_BASE_LEVEL;
5242	val = pTextureState[i].value;
5243	break;
5244
5245	#if 0
5246	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5247	samplerType = D3DSAMP_MAXANISOTROPY;
5248	val = pTextureState[i].value; /* Identical?? */
5249	break;
5250
5251	case SVGA3D_TS_GAMMA: /* float */
5252	samplerType = D3DSAMP_SRGBTEXTURE;
5253	/* Boolean in D3D */
5254	if (pTextureState[i].floatValue == 1.0f)
5255	val = FALSE;
5256	else
5257	val = TRUE;
5258	break;
5259	#endif
5260	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5261	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5262	AssertFailed();
5263	break;
5264
5265	default:
5266	//AssertFailed();
5267	break;
5268	}
5269
5270	if (textureType != ~(GLenum)0)
5271	{
5272	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5273	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5274	}
5275	}
5276
5277	return VINF_SUCCESS;
5278	}
5279
5280	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5281	{
5282	PVMSVGA3DCONTEXT pContext;
5283	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5284	AssertReturn(pState, VERR_NO_MEMORY);
5285	GLenum oglFace;
5286
5287	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5288
5289	if ( cid >= pState->cContexts
5290	\|\| pState->papContexts[cid]->id != cid)
5291	{
5292	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5293	return VERR_INVALID_PARAMETER;
5294	}
5295	pContext = pState->papContexts[cid];
5296	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5297
5298	switch (face)
5299	{
5300	case SVGA3D_FACE_NONE:
5301	case SVGA3D_FACE_FRONT:
5302	oglFace = GL_FRONT;
5303	break;
5304
5305	case SVGA3D_FACE_BACK:
5306	oglFace = GL_BACK;
5307	break;
5308
5309	case SVGA3D_FACE_FRONT_BACK:
5310	oglFace = GL_FRONT_AND_BACK;
5311	break;
5312
5313	default:
5314	AssertFailedReturn(VERR_INVALID_PARAMETER);
5315	}
5316
5317	/* Save for vm state save/restore. */
5318	pContext->state.aMaterial[face].fValid = true;
5319	pContext->state.aMaterial[face].material = *pMaterial;
5320	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5321
5322	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5323	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5324	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5325	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5326	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5327	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5328
5329	return VINF_SUCCESS;
5330	}
5331
5332	/** @todo Move into separate library as we are using logic from Wine here. */
5333	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5334	{
5335	PVMSVGA3DCONTEXT pContext;
5336	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5337	AssertReturn(pState, VERR_NO_MEMORY);
5338	float QuadAttenuation;
5339
5340	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5341
5342	if ( cid >= pState->cContexts
5343	\|\| pState->papContexts[cid]->id != cid)
5344	{
5345	Log(("vmsvga3dSetLightData invalid context id!\n"));
5346	return VERR_INVALID_PARAMETER;
5347	}
5348	pContext = pState->papContexts[cid];
5349	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5350
5351	/* Store for vm state save/restore */
5352	if (index < SVGA3D_MAX_LIGHTS)
5353	{
5354	pContext->state.aLightData[index].fValidData = true;
5355	pContext->state.aLightData[index].data = *pData;
5356	}
5357	else
5358	AssertFailed();
5359
5360	if ( pData->attenuation0 < 0.0f
5361	\|\| pData->attenuation1 < 0.0f
5362	\|\| pData->attenuation2 < 0.0f)
5363	{
5364	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5365	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5366	}
5367
5368	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5369	glMatrixMode(GL_MODELVIEW);
5370	glPushMatrix();
5371	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5372
5373	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5374	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5375	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5376
5377	if (pData->range * pData->range >= FLT_MIN)
5378	QuadAttenuation = 1.4f / (pData->range * pData->range);
5379	else
5380	QuadAttenuation = 0.0f;
5381
5382	switch (pData->type)
5383	{
5384	case SVGA3D_LIGHTTYPE_POINT:
5385	{
5386	GLfloat position[4];
5387
5388	position[0] = pData->position[0];
5389	position[1] = pData->position[1];
5390	position[2] = pData->position[2];
5391	position[3] = 1.0f;
5392
5393	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5394	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5395
5396	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5397	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5398
5399	/* Attenuation - Are these right? guessing... */
5400	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5401	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5402
5403	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5404	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5405
5406	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5407	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5408
5409	/** @todo range */
5410	break;
5411	}
5412
5413	case SVGA3D_LIGHTTYPE_SPOT1:
5414	{
5415	GLfloat exponent;
5416	GLfloat position[4];
5417	const GLfloat pi = 4.0f * atanf(1.0f);
5418
5419	position[0] = pData->position[0];
5420	position[1] = pData->position[1];
5421	position[2] = pData->position[2];
5422	position[3] = 1.0f;
5423
5424	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5425	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5426
5427	position[0] = pData->direction[0];
5428	position[1] = pData->direction[1];
5429	position[2] = pData->direction[2];
5430	position[3] = 1.0f;
5431
5432	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5433	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5434
5435	/*
5436	* opengl-ish and d3d-ish spot lights use too different models for the
5437	* light "intensity" as a function of the angle towards the main light direction,
5438	* so we only can approximate very roughly.
5439	* however spot lights are rather rarely used in games (if ever used at all).
5440	* furthermore if still used, probably nobody pays attention to such details.
5441	*/
5442	if (pData->falloff == 0)
5443	{
5444	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5445	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5446	* will always be 1.0 for both of them, and we don't have to care for the
5447	* rest of the rather complex calculation
5448	*/
5449	exponent = 0.0f;
5450	}
5451	else
5452	{
5453	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5454	if (rho < 0.0001f)
5455	rho = 0.0001f;
5456	exponent = -0.3f/log(cos(rho/2));
5457	}
5458	if (exponent > 128.0f)
5459	exponent = 128.0f;
5460
5461	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5462	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5463
5464	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5465	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5466
5467	/* Attenuation - Are these right? guessing... */
5468	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5469	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5470
5471	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5472	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5473
5474	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5475	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5476
5477	/** @todo range */
5478	break;
5479	}
5480
5481	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5482	{
5483	GLfloat position[4];
5484
5485	position[0] = -pData->direction[0];
5486	position[1] = -pData->direction[1];
5487	position[2] = -pData->direction[2];
5488	position[3] = 0.0f;
5489
5490	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5491	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5492
5493	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5494	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5495
5496	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5497	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5498	break;
5499	}
5500
5501	case SVGA3D_LIGHTTYPE_SPOT2:
5502	default:
5503	Log(("Unsupported light type!!\n"));
5504	return VERR_INVALID_PARAMETER;
5505	}
5506
5507	/* Restore the modelview matrix */
5508	glPopMatrix();
5509
5510	return VINF_SUCCESS;
5511	}
5512
5513	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5514	{
5515	PVMSVGA3DCONTEXT pContext;
5516	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5517	AssertReturn(pState, VERR_NO_MEMORY);
5518
5519	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5520
5521	if ( cid >= pState->cContexts
5522	\|\| pState->papContexts[cid]->id != cid)
5523	{
5524	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5525	return VERR_INVALID_PARAMETER;
5526	}
5527	pContext = pState->papContexts[cid];
5528	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5529
5530	/* Store for vm state save/restore */
5531	if (index < SVGA3D_MAX_LIGHTS)
5532	pContext->state.aLightData[index].fEnabled = !!enabled;
5533	else
5534	AssertFailed();
5535
5536	if (enabled)
5537	{
5538	/* Load the default settings if none have been set yet. */
5539	if (!pContext->state.aLightData[index].fValidData)
5540	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5541	glEnable(GL_LIGHT0 + index);
5542	}
5543	else
5544	glDisable(GL_LIGHT0 + index);
5545
5546	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5547	return VINF_SUCCESS;
5548	}
5549
5550	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5551	{
5552	PVMSVGA3DCONTEXT pContext;
5553	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5554	AssertReturn(pState, VERR_NO_MEMORY);
5555
5556	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5557
5558	if ( cid >= pState->cContexts
5559	\|\| pState->papContexts[cid]->id != cid)
5560	{
5561	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5562	return VERR_INVALID_PARAMETER;
5563	}
5564	pContext = pState->papContexts[cid];
5565	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5566
5567	/* Save for vm state save/restore. */
5568	pContext->state.RectViewPort = *pRect;
5569	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5570
5571	/** @todo y-inversion for partial viewport coordinates? */
5572	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5573	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5574
5575	/* Reset the projection matrix as that relies on the viewport setting. */
5576	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5577	{
5578	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5579	}
5580	else
5581	{
5582	float matrix[16];
5583
5584	/* identity matrix if no matrix set. */
5585	memset(matrix, 0, sizeof(matrix));
5586	matrix[0] = 1.0;
5587	matrix[5] = 1.0;
5588	matrix[10] = 1.0;
5589	matrix[15] = 1.0;
5590	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5591	}
5592
5593	return VINF_SUCCESS;
5594	}
5595
5596	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5597	{
5598	PVMSVGA3DCONTEXT pContext;
5599	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5600	AssertReturn(pState, VERR_NO_MEMORY);
5601	double oglPlane[4];
5602
5603	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)));
5604	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5605
5606	if ( cid >= pState->cContexts
5607	\|\| pState->papContexts[cid]->id != cid)
5608	{
5609	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5610	return VERR_INVALID_PARAMETER;
5611	}
5612	pContext = pState->papContexts[cid];
5613	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5614
5615	/* Store for vm state save/restore. */
5616	pContext->state.aClipPlane[index].fValid = true;
5617	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5618
5619	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5620	oglPlane[0] = (double)plane[0];
5621	oglPlane[1] = (double)plane[1];
5622	oglPlane[2] = (double)plane[2];
5623	oglPlane[3] = (double)plane[3];
5624
5625	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5626	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5627
5628	return VINF_SUCCESS;
5629	}
5630
5631	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5632	{
5633	PVMSVGA3DCONTEXT pContext;
5634	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5635	AssertReturn(pState, VERR_NO_MEMORY);
5636
5637	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5638
5639	if ( cid >= pState->cContexts
5640	\|\| pState->papContexts[cid]->id != cid)
5641	{
5642	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5643	return VERR_INVALID_PARAMETER;
5644	}
5645	pContext = pState->papContexts[cid];
5646	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5647
5648	/* Store for vm state save/restore. */
5649	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5650	pContext->state.RectScissor = *pRect;
5651
5652	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5653	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5654
5655	return VINF_SUCCESS;
5656	}
5657
5658	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5659	{
5660	/* Convert byte color components to float (0-1.0) */
5661	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5662	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5663	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5664	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5665	}
5666
5667	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5668	uint32_t cRects, SVGA3dRect *pRect)
5669	{
5670	GLbitfield mask = 0;
5671	PVMSVGA3DCONTEXT pContext;
5672	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5673	AssertReturn(pState, VERR_NO_MEMORY);
5674	GLboolean fDepthWriteEnabled = GL_FALSE;
5675
5676	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));
5677
5678	if ( cid >= pState->cContexts
5679	\|\| pState->papContexts[cid]->id != cid)
5680	{
5681	Log(("vmsvga3dCommandClear invalid context id!\n"));
5682	return VERR_INVALID_PARAMETER;
5683	}
5684	pContext = pState->papContexts[cid];
5685	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5686
5687	if (clearFlag & SVGA3D_CLEAR_COLOR)
5688	{
5689	GLfloat red, green, blue, alpha;
5690
5691	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5692
5693	/* Set the color clear value. */
5694	glClearColor(red, green, blue, alpha);
5695
5696	mask \|= GL_COLOR_BUFFER_BIT;
5697	}
5698	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5699	{
5700	/** @todo possibly the same problem as with glDepthMask */
5701	glClearStencil(stencil);
5702	mask \|= GL_STENCIL_BUFFER_BIT;
5703	}
5704	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5705	{
5706	glClearDepth((GLdouble)depth);
5707	mask \|= GL_DEPTH_BUFFER_BIT;
5708
5709	/* glClear will not clear the depth buffer if writing is disabled. */
5710	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5711	if (fDepthWriteEnabled == GL_FALSE)
5712	glDepthMask(GL_TRUE);
5713	}
5714
5715	if (cRects)
5716	{
5717	/* Save the current scissor test bit and scissor box. */
5718	glPushAttrib(GL_SCISSOR_BIT);
5719	glEnable(GL_SCISSOR_TEST);
5720	for (unsigned i=0; i < cRects; i++)
5721	{
5722	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));
5723	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5724	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5725	glClear(mask);
5726	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5727	}
5728	/* Restore the old scissor test bit and box */
5729	glPopAttrib();
5730	}
5731	else
5732	{
5733	glClear(mask);
5734	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5735	}
5736
5737	/* Restore depth write state. */
5738	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5739	&& fDepthWriteEnabled == GL_FALSE)
5740	glDepthMask(GL_FALSE);
5741
5742	return VINF_SUCCESS;
5743	}
5744
5745	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5746	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5747	{
5748	normalized = GL_FALSE;
5749	switch (identity.type)
5750	{
5751	case SVGA3D_DECLTYPE_FLOAT1:
5752	size = 1;
5753	type = GL_FLOAT;
5754	break;
5755	case SVGA3D_DECLTYPE_FLOAT2:
5756	size = 2;
5757	type = GL_FLOAT;
5758	break;
5759	case SVGA3D_DECLTYPE_FLOAT3:
5760	size = 3;
5761	type = GL_FLOAT;
5762	break;
5763	case SVGA3D_DECLTYPE_FLOAT4:
5764	size = 4;
5765	type = GL_FLOAT;
5766	break;
5767
5768	case SVGA3D_DECLTYPE_D3DCOLOR:
5769	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5770	type = GL_UNSIGNED_BYTE;
5771	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5772	break;
5773
5774	case SVGA3D_DECLTYPE_UBYTE4N:
5775	normalized = GL_TRUE;
5776	/* no break */
5777	case SVGA3D_DECLTYPE_UBYTE4:
5778	size = 4;
5779	type = GL_UNSIGNED_BYTE;
5780	break;
5781
5782	case SVGA3D_DECLTYPE_SHORT2N:
5783	normalized = GL_TRUE;
5784	/* no break */
5785	case SVGA3D_DECLTYPE_SHORT2:
5786	size = 2;
5787	type = GL_SHORT;
5788	break;
5789
5790	case SVGA3D_DECLTYPE_SHORT4N:
5791	normalized = GL_TRUE;
5792	/* no break */
5793	case SVGA3D_DECLTYPE_SHORT4:
5794	size = 4;
5795	type = GL_SHORT;
5796	break;
5797
5798	case SVGA3D_DECLTYPE_USHORT4N:
5799	normalized = GL_TRUE;
5800	size = 4;
5801	type = GL_UNSIGNED_SHORT;
5802	break;
5803
5804	case SVGA3D_DECLTYPE_USHORT2N:
5805	normalized = GL_TRUE;
5806	size = 2;
5807	type = GL_UNSIGNED_SHORT;
5808	break;
5809
5810	case SVGA3D_DECLTYPE_UDEC3:
5811	size = 3;
5812	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5813	break;
5814
5815	case SVGA3D_DECLTYPE_DEC3N:
5816	normalized = true;
5817	size = 3;
5818	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5819	break;
5820
5821	case SVGA3D_DECLTYPE_FLOAT16_2:
5822	size = 2;
5823	type = GL_HALF_FLOAT;
5824	break;
5825	case SVGA3D_DECLTYPE_FLOAT16_4:
5826	size = 4;
5827	type = GL_HALF_FLOAT;
5828	break;
5829	default:
5830	AssertFailedReturn(VERR_INVALID_PARAMETER);
5831	}
5832
5833	//pVertexElement->Method = identity.method;
5834	//pVertexElement->Usage = identity.usage;
5835
5836	return VINF_SUCCESS;
5837	}
5838
5839	/* Convert VMWare primitive type to its OpenGL equivalent. */
5840	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5841	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5842	{
5843	switch (PrimitiveType)
5844	{
5845	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5846	*pMode = GL_TRIANGLES;
5847	pcVertices = cPrimitiveCount 3;
5848	break;
5849	case SVGA3D_PRIMITIVE_POINTLIST:
5850	*pMode = GL_POINTS;
5851	*pcVertices = cPrimitiveCount;
5852	break;
5853	case SVGA3D_PRIMITIVE_LINELIST:
5854	*pMode = GL_LINES;
5855	pcVertices = cPrimitiveCount 2;
5856	break;
5857	case SVGA3D_PRIMITIVE_LINESTRIP:
5858	*pMode = GL_LINE_STRIP;
5859	*pcVertices = cPrimitiveCount + 1;
5860	break;
5861	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5862	*pMode = GL_TRIANGLE_STRIP;
5863	*pcVertices = cPrimitiveCount + 2;
5864	break;
5865	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5866	*pMode = GL_TRIANGLE_FAN;
5867	*pcVertices = cPrimitiveCount + 2;
5868	break;
5869	default:
5870	return VERR_INVALID_PARAMETER;
5871	}
5872	return VINF_SUCCESS;
5873	}
5874
5875	int vmsvga3dResetTransformMatrices(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext)
5876	{
5877	int rc;
5878
5879	/* Reset the view matrix (also takes the world matrix into account). */
5880	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid == true)
5881	{
5882	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5883	}
5884	else
5885	{
5886	float matrix[16];
5887
5888	/* identity matrix if no matrix set. */
5889	memset(matrix, 0, sizeof(matrix));
5890	matrix[0] = 1.0;
5891	matrix[5] = 1.0;
5892	matrix[10] = 1.0;
5893	matrix[15] = 1.0;
5894	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_VIEW, matrix);
5895	}
5896
5897	/* Reset the projection matrix. */
5898	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5899	{
5900	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5901	}
5902	else
5903	{
5904	float matrix[16];
5905
5906	/* identity matrix if no matrix set. */
5907	memset(matrix, 0, sizeof(matrix));
5908	matrix[0] = 1.0;
5909	matrix[5] = 1.0;
5910	matrix[10] = 1.0;
5911	matrix[15] = 1.0;
5912	rc = vmsvga3dSetTransform(pThis, pContext->id, SVGA3D_TRANSFORM_PROJECTION, matrix);
5913	}
5914	AssertRC(rc);
5915	return rc;
5916	}
5917
5918	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5919	{
5920	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5921	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5922	PVMSVGA3DSURFACE pVertexSurface;
5923
5924	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5925	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5926
5927	pVertexSurface = pState->papSurfaces[sidVertex];
5928	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5929
5930	/* Create and/or bind the vertex buffer. */
5931	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5932	{
5933	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5934	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5935	pContext = &pState->SharedCtx;
5936	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5937
5938	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5939	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5940
5941	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5942	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5943
5944	Assert(pVertexSurface->fDirty);
5945	/** @todo rethink usage dynamic/static */
5946	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5947	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5948
5949	pVertexSurface->pMipmapLevels[0].fDirty = false;
5950	pVertexSurface->fDirty = false;
5951
5952	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5953
5954	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5955	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5956
5957	pContext = pSavedCtx;
5958	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5959	}
5960
5961	Assert(pVertexSurface->fDirty == false);
5962	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5963	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5964
5965	/* Setup the vertex declarations. */
5966	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5967	{
5968	GLint size;
5969	GLenum type;
5970	GLboolean normalized;
5971	GLuint index = iVertexDeclBase + iVertex;
5972
5973	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));
5974
5975	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5976	AssertRCReturn(rc, rc);
5977
5978	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5979	{
5980	/* Use numbered vertex arrays when shaders are active. */
5981	pState->ext.glEnableVertexAttribArray(index);
5982	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5983	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5984	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5985	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5986	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5987	}
5988	else
5989	{
5990	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5991	switch (pVertexDecl[iVertex].identity.usage)
5992	{
5993	case SVGA3D_DECLUSAGE_POSITIONT:
5994	case SVGA3D_DECLUSAGE_POSITION:
5995	{
5996	glEnableClientState(GL_VERTEX_ARRAY);
5997	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5998	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5999	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6000	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6001	break;
6002	}
6003	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6004	AssertFailed();
6005	break;
6006	case SVGA3D_DECLUSAGE_BLENDINDICES:
6007	AssertFailed();
6008	break;
6009	case SVGA3D_DECLUSAGE_NORMAL:
6010	glEnableClientState(GL_NORMAL_ARRAY);
6011	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6012	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
6013	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6014	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6015	break;
6016	case SVGA3D_DECLUSAGE_PSIZE:
6017	AssertFailed();
6018	break;
6019	case SVGA3D_DECLUSAGE_TEXCOORD:
6020	/* Specify the affected texture unit. */
6021	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6022	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6023	#else
6024	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6025	#endif
6026	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
6027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6028	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
6029	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6030	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6031	break;
6032	case SVGA3D_DECLUSAGE_TANGENT:
6033	AssertFailed();
6034	break;
6035	case SVGA3D_DECLUSAGE_BINORMAL:
6036	AssertFailed();
6037	break;
6038	case SVGA3D_DECLUSAGE_TESSFACTOR:
6039	AssertFailed();
6040	break;
6041	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
6042	glEnableClientState(GL_COLOR_ARRAY);
6043	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6044	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
6045	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6046	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6047	break;
6048	case SVGA3D_DECLUSAGE_FOG:
6049	glEnableClientState(GL_FOG_COORD_ARRAY);
6050	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6051	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
6052	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
6053	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6054	break;
6055	case SVGA3D_DECLUSAGE_DEPTH:
6056	AssertFailed();
6057	break;
6058	case SVGA3D_DECLUSAGE_SAMPLE:
6059	AssertFailed();
6060	break;
6061	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6062	}
6063	}
6064
6065	#ifdef LOG_ENABLED
6066	if (pVertexDecl[iVertex].array.stride == 0)
6067	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
6068	#endif
6069	}
6070
6071	return VINF_SUCCESS;
6072	}
6073
6074	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
6075	{
6076	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6077
6078	/* Clean up the vertex declarations. */
6079	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6080	{
6081	if (pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT)
6082	{
6083	/* Reset the transformation matrices in case of a switch back from pretransformed mode. */
6084	Log(("vmsvga3dDrawPrimitivesCleanupVertexDecls: reset world and projection matrices after transformation reset (pre-transformed -> transformed)\n"));
6085	vmsvga3dResetTransformMatrices(pThis, pContext);
6086	}
6087
6088	if (pContext->state.shidVertex != SVGA_ID_INVALID)
6089	{
6090	/* Use numbered vertex arrays when shaders are active. */
6091	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
6092	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6093	}
6094	else
6095	{
6096	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6097	switch (pVertexDecl[iVertex].identity.usage)
6098	{
6099	case SVGA3D_DECLUSAGE_POSITION:
6100	case SVGA3D_DECLUSAGE_POSITIONT:
6101	glDisableClientState(GL_VERTEX_ARRAY);
6102	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6103	break;
6104	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6105	break;
6106	case SVGA3D_DECLUSAGE_BLENDINDICES:
6107	break;
6108	case SVGA3D_DECLUSAGE_NORMAL:
6109	glDisableClientState(GL_NORMAL_ARRAY);
6110	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6111	break;
6112	case SVGA3D_DECLUSAGE_PSIZE:
6113	break;
6114	case SVGA3D_DECLUSAGE_TEXCOORD:
6115	/* Specify the affected texture unit. */
6116	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6117	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6118	#else
6119	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6120	#endif
6121	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6123	break;
6124	case SVGA3D_DECLUSAGE_TANGENT:
6125	break;
6126	case SVGA3D_DECLUSAGE_BINORMAL:
6127	break;
6128	case SVGA3D_DECLUSAGE_TESSFACTOR:
6129	break;
6130	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6131	glDisableClientState(GL_COLOR_ARRAY);
6132	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6133	break;
6134	case SVGA3D_DECLUSAGE_FOG:
6135	glDisableClientState(GL_FOG_COORD_ARRAY);
6136	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6137	break;
6138	case SVGA3D_DECLUSAGE_DEPTH:
6139	break;
6140	case SVGA3D_DECLUSAGE_SAMPLE:
6141	break;
6142	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6143	}
6144	}
6145	}
6146	/* Unbind the vertex buffer after usage. */
6147	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6148	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6149	return VINF_SUCCESS;
6150	}
6151
6152	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl,
6153	uint32_t numRanges, SVGA3dPrimitiveRange *pRange, uint32_t cVertexDivisor,
6154	SVGA3dVertexDivisor *pVertexDivisor)
6155	{
6156	RT_NOREF(pVertexDivisor);
6157	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6158	AssertReturn(pState, VERR_INTERNAL_ERROR);
6159	PVMSVGA3DCONTEXT pContext;
6160	int rc = VERR_NOT_IMPLEMENTED;
6161	uint32_t iCurrentVertex;
6162
6163	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6164
6165	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6166	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6167	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6168	/** @todo Non-zero cVertexDivisor */
6169	Assert(!cVertexDivisor);
6170
6171	if ( cid >= pState->cContexts
6172	\|\| pState->papContexts[cid]->id != cid)
6173	{
6174	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6175	return VERR_INVALID_PARAMETER;
6176	}
6177	pContext = pState->papContexts[cid];
6178	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6179
6180	/* Check for pretransformed vertex declarations. */
6181	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
6182	{
6183	switch (pVertexDecl[iVertex].identity.usage)
6184	{
6185	case SVGA3D_DECLUSAGE_POSITIONT:
6186	Log(("ShaderSetPositionTransformed: (%d,%d)\n", pContext->state.RectViewPort.w, pContext->state.RectViewPort.h));
6187	case SVGA3D_DECLUSAGE_POSITION:
6188	ShaderSetPositionTransformed(pContext->pShaderContext, pContext->state.RectViewPort.w,
6189	pContext->state.RectViewPort.h,
6190	pVertexDecl[iVertex].identity.usage == SVGA3D_DECLUSAGE_POSITIONT);
6191	break;
6192	default: /* Shut up MSC. */ break;
6193	}
6194	}
6195
6196	/* Flush any shader changes; after (!) checking the vertex declarations to deal with pre-transformed vertices. */
6197	if (pContext->pShaderContext)
6198	{
6199	uint32_t rtHeight = 0;
6200
6201	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6202	{
6203	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
6204	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6205	}
6206
6207	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6208	}
6209
6210	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6211	iCurrentVertex = 0;
6212	while (iCurrentVertex < numVertexDecls)
6213	{
6214	uint32_t sidVertex = SVGA_ID_INVALID;
6215	uint32_t iVertex;
6216
6217	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6218	{
6219	if ( sidVertex != SVGA_ID_INVALID
6220	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6221	)
6222	break;
6223	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6224	}
6225
6226	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6227	AssertRCReturn(rc, rc);
6228
6229	iCurrentVertex = iVertex;
6230	}
6231
6232	/* Now draw the primitives. */
6233	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6234	{
6235	GLenum modeDraw;
6236	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6237	PVMSVGA3DSURFACE pIndexSurface = NULL;
6238	unsigned cVertices;
6239
6240	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6241	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6242	if (RT_FAILURE(rc))
6243	{
6244	AssertRC(rc);
6245	goto internal_error;
6246	}
6247
6248	if (sidIndex != SVGA3D_INVALID_ID)
6249	{
6250	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6251
6252	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6253	\|\| sidIndex >= pState->cSurfaces
6254	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6255	{
6256	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6257	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6258	rc = VERR_INVALID_PARAMETER;
6259	goto internal_error;
6260	}
6261	pIndexSurface = pState->papSurfaces[sidIndex];
6262	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6263
6264	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6265	{
6266	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6267	pContext = &pState->SharedCtx;
6268	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6269
6270	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6271	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6272
6273	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6274	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6275
6276	Assert(pIndexSurface->fDirty);
6277
6278	/** @todo rethink usage dynamic/static */
6279	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6280	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6281
6282	pIndexSurface->pMipmapLevels[0].fDirty = false;
6283	pIndexSurface->fDirty = false;
6284
6285	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6286
6287	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6288	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6289
6290	pContext = pState->papContexts[cid];
6291	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6292	}
6293	Assert(pIndexSurface->fDirty == false);
6294
6295	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6296	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6297	}
6298
6299	if (!pIndexSurface)
6300	{
6301	/* Render without an index buffer */
6302	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6303	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6304	}
6305	else
6306	{
6307	GLenum indexType;
6308
6309	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6310	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6311
6312	if (pRange[iPrimitive].indexWidth == sizeof(uint8_t))
6313	{
6314	indexType = GL_UNSIGNED_BYTE;
6315	}
6316	else
6317	if (pRange[iPrimitive].indexWidth == sizeof(uint16_t))
6318	{
6319	indexType = GL_UNSIGNED_SHORT;
6320	}
6321	else
6322	{
6323	Assert(pRange[iPrimitive].indexWidth == sizeof(uint32_t));
6324	indexType = GL_UNSIGNED_INT;
6325	}
6326
6327	/* Render with an index buffer */
6328	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));
6329	if (pRange[iPrimitive].indexBias == 0)
6330	glDrawElements(modeDraw,
6331	cVertices,
6332	indexType,
6333	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6334	else
6335	pState->ext.glDrawElementsBaseVertex(modeDraw,
6336	cVertices,
6337	indexType,
6338	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6339	pRange[iPrimitive].indexBias); /* basevertex */
6340
6341	/* Unbind the index buffer after usage. */
6342	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6343	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6344	}
6345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6346	}
6347
6348	internal_error:
6349
6350	/* Deactivate the vertex declarations. */
6351	iCurrentVertex = 0;
6352	while (iCurrentVertex < numVertexDecls)
6353	{
6354	uint32_t sidVertex = SVGA_ID_INVALID;
6355	uint32_t iVertex;
6356
6357	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6358	{
6359	if ( sidVertex != SVGA_ID_INVALID
6360	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6361	)
6362	break;
6363	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6364	}
6365
6366	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pThis, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6367	AssertRCReturn(rc, rc);
6368
6369	iCurrentVertex = iVertex;
6370	}
6371	#ifdef DEBUG
6372	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6373	{
6374	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6375	{
6376	GLint activeTexture = 0;
6377	GLint activeTextureUnit = 0;
6378
6379	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6380	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6381	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6382	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6383
6384	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6385	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6386	pState->ext.glActiveTexture(activeTextureUnit);
6387	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6388
6389	# 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. */
6390	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6391	{
6392	PVMSVGA3DSURFACE pTexture;
6393	pTexture = pState->papSurfaces[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6394
6395	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6396	}
6397	# else
6398	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTexture[i]];
6399	AssertMsg(pTexture->id == pContext->aSidActiveTexture[i], ("%x vs %x\n", pTexture->id == pContext->aSidActiveTexture[i]));
6400	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6401	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6402	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTexture[i]));
6403	# endif
6404	}
6405	}
6406	#endif
6407
6408	#ifdef DEBUG_GFX_WINDOW
6409	if (pContext->sidRenderTarget)
6410	{
6411	SVGA3dCopyRect rect;
6412
6413	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6414	rect.w = pContext->state.RectViewPort.w;
6415	rect.h = pContext->state.RectViewPort.h;
6416	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6417	}
6418	#endif
6419
6420	return rc;
6421	}
6422
6423
6424	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6425	{
6426	PVMSVGA3DCONTEXT pContext;
6427	PVMSVGA3DSHADER pShader;
6428	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6429	AssertReturn(pState, VERR_NO_MEMORY);
6430	int rc;
6431
6432	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6433	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6434
6435	if ( cid >= pState->cContexts
6436	\|\| pState->papContexts[cid]->id != cid)
6437	{
6438	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6439	return VERR_INVALID_PARAMETER;
6440	}
6441	pContext = pState->papContexts[cid];
6442	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6443
6444	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6445	if (type == SVGA3D_SHADERTYPE_VS)
6446	{
6447	if (shid >= pContext->cVertexShaders)
6448	{
6449	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6450	AssertReturn(pvNew, VERR_NO_MEMORY);
6451	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6452	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6453	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6454	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6455	pContext->cVertexShaders = shid + 1;
6456	}
6457	/* If one already exists with this id, then destroy it now. */
6458	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6459	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6460
6461	pShader = &pContext->paVertexShader[shid];
6462	}
6463	else
6464	{
6465	Assert(type == SVGA3D_SHADERTYPE_PS);
6466	if (shid >= pContext->cPixelShaders)
6467	{
6468	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6469	AssertReturn(pvNew, VERR_NO_MEMORY);
6470	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6471	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6472	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6473	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6474	pContext->cPixelShaders = shid + 1;
6475	}
6476	/* If one already exists with this id, then destroy it now. */
6477	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6478	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6479
6480	pShader = &pContext->paPixelShader[shid];
6481	}
6482
6483	memset(pShader, 0, sizeof(*pShader));
6484	pShader->id = shid;
6485	pShader->cid = cid;
6486	pShader->type = type;
6487	pShader->cbData = cbData;
6488	pShader->pShaderProgram = RTMemAllocZ(cbData);
6489	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6490	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6491
6492	#ifdef DUMP_SHADER_DISASSEMBLY
6493	LPD3DXBUFFER pDisassembly;
6494	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6495	if (hr == D3D_OK)
6496	{
6497	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6498	pDisassembly->Release();
6499	}
6500	#endif
6501
6502	switch (type)
6503	{
6504	case SVGA3D_SHADERTYPE_VS:
6505	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6506	break;
6507
6508	case SVGA3D_SHADERTYPE_PS:
6509	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6510	break;
6511
6512	default:
6513	AssertFailedReturn(VERR_INVALID_PARAMETER);
6514	}
6515	if (rc != VINF_SUCCESS)
6516	{
6517	RTMemFree(pShader->pShaderProgram);
6518	memset(pShader, 0, sizeof(*pShader));
6519	pShader->id = SVGA3D_INVALID_ID;
6520	}
6521
6522	return rc;
6523	}
6524
6525	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6526	{
6527	PVMSVGA3DCONTEXT pContext;
6528	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6529	AssertReturn(pState, VERR_NO_MEMORY);
6530	PVMSVGA3DSHADER pShader = NULL;
6531	int rc;
6532
6533	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6534
6535	if ( cid >= pState->cContexts
6536	\|\| pState->papContexts[cid]->id != cid)
6537	{
6538	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6539	return VERR_INVALID_PARAMETER;
6540	}
6541	pContext = pState->papContexts[cid];
6542	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6543
6544	if (type == SVGA3D_SHADERTYPE_VS)
6545	{
6546	if ( shid < pContext->cVertexShaders
6547	&& pContext->paVertexShader[shid].id == shid)
6548	{
6549	pShader = &pContext->paVertexShader[shid];
6550	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6551	AssertRC(rc);
6552	}
6553	}
6554	else
6555	{
6556	Assert(type == SVGA3D_SHADERTYPE_PS);
6557	if ( shid < pContext->cPixelShaders
6558	&& pContext->paPixelShader[shid].id == shid)
6559	{
6560	pShader = &pContext->paPixelShader[shid];
6561	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6562	AssertRC(rc);
6563	}
6564	}
6565
6566	if (pShader)
6567	{
6568	if (pShader->pShaderProgram)
6569	RTMemFree(pShader->pShaderProgram);
6570	memset(pShader, 0, sizeof(*pShader));
6571	pShader->id = SVGA3D_INVALID_ID;
6572	}
6573	else
6574	AssertFailedReturn(VERR_INVALID_PARAMETER);
6575
6576	return VINF_SUCCESS;
6577	}
6578
6579	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6580	{
6581	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6582	AssertReturn(pState, VERR_NO_MEMORY);
6583	int rc;
6584
6585	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6586
6587	if ( !pContext
6588	&& cid < pState->cContexts
6589	&& pState->papContexts[cid]->id == cid)
6590	pContext = pState->papContexts[cid];
6591	else if (!pContext)
6592	{
6593	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6594	Log(("vmsvga3dShaderSet invalid context id!\n"));
6595	return VERR_INVALID_PARAMETER;
6596	}
6597	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6598
6599	if (type == SVGA3D_SHADERTYPE_VS)
6600	{
6601	/* Save for vm state save/restore. */
6602	pContext->state.shidVertex = shid;
6603	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6604
6605	if ( shid < pContext->cVertexShaders
6606	&& pContext->paVertexShader[shid].id == shid)
6607	{
6608	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6609	Assert(type == pShader->type);
6610
6611	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6612	AssertRCReturn(rc, rc);
6613	}
6614	else
6615	if (shid == SVGA_ID_INVALID)
6616	{
6617	/* Unselect shader. */
6618	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6619	AssertRCReturn(rc, rc);
6620	}
6621	else
6622	AssertFailedReturn(VERR_INVALID_PARAMETER);
6623	}
6624	else
6625	{
6626	/* Save for vm state save/restore. */
6627	pContext->state.shidPixel = shid;
6628	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6629
6630	Assert(type == SVGA3D_SHADERTYPE_PS);
6631	if ( shid < pContext->cPixelShaders
6632	&& pContext->paPixelShader[shid].id == shid)
6633	{
6634	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6635	Assert(type == pShader->type);
6636
6637	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6638	AssertRCReturn(rc, rc);
6639	}
6640	else
6641	if (shid == SVGA_ID_INVALID)
6642	{
6643	/* Unselect shader. */
6644	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6645	AssertRCReturn(rc, rc);
6646	}
6647	else
6648	AssertFailedReturn(VERR_INVALID_PARAMETER);
6649	}
6650
6651	return VINF_SUCCESS;
6652	}
6653
6654	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6655	{
6656	PVMSVGA3DCONTEXT pContext;
6657	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6658	AssertReturn(pState, VERR_NO_MEMORY);
6659	int rc;
6660
6661	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6662
6663	if ( cid >= pState->cContexts
6664	\|\| pState->papContexts[cid]->id != cid)
6665	{
6666	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6667	return VERR_INVALID_PARAMETER;
6668	}
6669	pContext = pState->papContexts[cid];
6670	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6671
6672	for (uint32_t i = 0; i < cRegisters; i++)
6673	{
6674	#ifdef LOG_ENABLED
6675	switch (ctype)
6676	{
6677	case SVGA3D_CONST_TYPE_FLOAT:
6678	{
6679	float pValuesF = (float )pValues;
6680	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)));
6681	break;
6682	}
6683
6684	case SVGA3D_CONST_TYPE_INT:
6685	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6686	break;
6687
6688	case SVGA3D_CONST_TYPE_BOOL:
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	#endif
6693	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6694	}
6695
6696	switch (type)
6697	{
6698	case SVGA3D_SHADERTYPE_VS:
6699	switch (ctype)
6700	{
6701	case SVGA3D_CONST_TYPE_FLOAT:
6702	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6703	break;
6704
6705	case SVGA3D_CONST_TYPE_INT:
6706	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6707	break;
6708
6709	case SVGA3D_CONST_TYPE_BOOL:
6710	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6711	break;
6712
6713	default:
6714	AssertFailedReturn(VERR_INVALID_PARAMETER);
6715	}
6716	AssertRCReturn(rc, rc);
6717	break;
6718
6719	case SVGA3D_SHADERTYPE_PS:
6720	switch (ctype)
6721	{
6722	case SVGA3D_CONST_TYPE_FLOAT:
6723	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6724	break;
6725
6726	case SVGA3D_CONST_TYPE_INT:
6727	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6728	break;
6729
6730	case SVGA3D_CONST_TYPE_BOOL:
6731	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6732	break;
6733
6734	default:
6735	AssertFailedReturn(VERR_INVALID_PARAMETER);
6736	}
6737	AssertRCReturn(rc, rc);
6738	break;
6739
6740	default:
6741	AssertFailedReturn(VERR_INVALID_PARAMETER);
6742	}
6743
6744	return VINF_SUCCESS;
6745	}
6746
6747
6748	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6749	{
6750	RT_NOREF(pThis, cid, type);
6751	AssertFailed();
6752	return VERR_NOT_IMPLEMENTED;
6753	}
6754
6755	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6756	{
6757	RT_NOREF(pThis, cid, type, guestResult);
6758	AssertFailed();
6759	return VERR_NOT_IMPLEMENTED;
6760	}
6761
6762	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6763	{
6764	RT_NOREF(pThis, cid, type, guestResult);
6765	AssertFailed();
6766	return VERR_NOT_IMPLEMENTED;
6767	}
6768

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 62933

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