DevVGA-SVGA3d-ogl.cpp@ 57518

Last change on this file since 57518 was 57517, checked in by vboxsync, 9 years ago
SVGA3d/ogl: Finally figured out the scrolling issue with the SVGA_3D_CMD_PRESENT implementation.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 254.8 KB

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1	/* $Id: DevVGA-SVGA3d-ogl.cpp 57517 2015-08-24 22:53:20Z vboxsync $ */
2	/** @file
3	* DevVMWare - VMWare SVGA device
4	*/
5
6	/*
7	* Copyright (C) 2013-2015 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 fMinGLVersion 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 fMinGLVersion, const char *pszWantedExtension)
183	{
184	/* check padding. */
185	Assert(pszWantedExtension[0] == ' ');
186	Assert(pszWantedExtension[1] != ' ');
187	Assert(strchr(&pszWantedExtension[1], ' ') + 1 == strchr(pszWantedExtension, '\0'));
188
189	/* Look it up. */
190	bool fRet = false;
191	if (strstr(pState->pszExtensions, pszWantedExtension))
192	fRet = true;
193
194	/* Temporarily. Later start if (fMinGLVersion != 0.0 && fActualGLVersion >= fMinGLVersion) return true; */
195	#ifdef RT_OS_DARWIN
196	AssertMsg( fMinGLVersion == 0.0
197	\|\| fRet == (pState->fGLVersion >= fMinGLVersion)
198	\|\| VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE == 2.1,
199	("%s actual:%d min:%d fRet=%d\n",
200	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
201	#else
202	AssertMsg(fMinGLVersion == 0.0 \|\| fRet == (pState->fGLVersion >= fMinGLVersion),
203	("%s actual:%d min:%d fRet=%d\n",
204	pszWantedExtension, (int)(pState->fGLVersion * 10), (int)(fMinGLVersion * 10), fRet));
205	#endif
206	return fRet;
207	}
208
209
210	/**
211	* Outputs GL_EXTENSIONS list to the release log.
212	*/
213	static void vmsvga3dLogRelExtensions(const char pszPrefix, const char pszExtensions)
214	{
215	/* OpenGL 3.0 interface (glGetString(GL_EXTENSIONS) return NULL). */
216	bool fBuffered = RTLogRelSetBuffering(true);
217
218	/*
219	* Determin the column widths first.
220	*/
221	size_t acchWidths[4] = { 1, 1, 1, 1 };
222	uint32_t i;
223	const char *psz = pszExtensions;
224	for (i = 0; ; i++)
225	{
226	while (*psz == ' ')
227	psz++;
228	if (!*psz)
229	break;
230
231	const char *pszEnd = strchr(psz, ' ');
232	AssertBreak(pszEnd);
233	size_t cch = pszEnd - psz;
234
235	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
236	if (acchWidths[iColumn] < cch)
237	acchWidths[iColumn] = cch;
238
239	psz = pszEnd;
240	}
241
242	/*
243	* Output it.
244	*/
245	LogRel(("VMSVGA3d: %sOpenGL extensions (%d):", pszPrefix, i));
246	psz = pszExtensions;
247	for (i = 0; ; i++)
248	{
249	while (*psz == ' ')
250	psz++;
251	if (!*psz)
252	break;
253
254	const char *pszEnd = strchr(psz, ' ');
255	AssertBreak(pszEnd);
256	size_t cch = pszEnd - psz;
257
258	uint32_t iColumn = i % RT_ELEMENTS(acchWidths);
259	if (iColumn == 0)
260	LogRel(("\nVMSVGA3d: %-.s", acchWidths[iColumn], cch, psz));
261	else if (iColumn != RT_ELEMENTS(acchWidths) - 1)
262	LogRel((" %-.s", acchWidths[iColumn], cch, psz));
263	else
264	LogRel((" %.*s", cch, psz));
265
266	psz = pszEnd;
267	}
268
269	RTLogRelSetBuffering(fBuffered);
270	LogRel(("\n"));
271	}
272
273	/**
274	* Gathers the GL_EXTENSIONS list, storing it as a space padded list at
275	* @a ppszExtensions.
276	*
277	* @returns VINF_SUCCESS or VERR_NO_STR_MEMORY
278	* @param ppszExtensions Pointer to the string pointer. Free with RTStrFree.
279	* @param fGLProfileVersion The OpenGL profile version.
280	*/
281	static int vmsvga3dGatherExtensions(char **ppszExtensions, float fGLProfileVersion)
282	{
283	int rc;
284	*ppszExtensions = NULL;
285
286	/*
287	* Try the old glGetString interface first.
288	*/
289	const char pszExtensions = (const char )glGetString(GL_EXTENSIONS);
290	if (pszExtensions)
291	{
292	rc = RTStrAAppendExN(ppszExtensions, 3, " ", (size_t)1, pszExtensions, RTSTR_MAX, " ", (size_t)1);
293	AssertLogRelRCReturn(rc, rc);
294	}
295	else
296	{
297	/*
298	* The new interface where each extension string is retrieved separately.
299	* Note! Cannot use VMSVGA3D_INIT_CHECKED_GL_GET_INTEGER_VALUE here because
300	* the above GL_EXTENSIONS error lingers on darwin. sucks.
301	*/
302	#ifndef GL_NUM_EXTENSIONS
303	# define GL_NUM_EXTENSIONS 0x821D
304	#endif
305	GLint cExtensions = 1024;
306	glGetIntegerv(GL_NUM_EXTENSIONS, &cExtensions);
307	Assert(cExtensions != 1024);
308
309	PFNGLGETSTRINGIPROC pfnGlGetStringi = (PFNGLGETSTRINGIPROC)OGLGETPROCADDRESS("glGetStringi");
310	AssertLogRelReturn(pfnGlGetStringi, VERR_NOT_SUPPORTED);
311
312	rc = RTStrAAppend(ppszExtensions, " ");
313	for (GLint i = 0; RT_SUCCESS(rc) && i < cExtensions; i++)
314	{
315	const char pszExt = (const char )pfnGlGetStringi(GL_EXTENSIONS, i);
316	if (pszExt)
317	rc = RTStrAAppendExN(ppszExtensions, 2, pfnGlGetStringi(GL_EXTENSIONS, i), RTSTR_MAX, " ", (size_t)1);
318	}
319	AssertRCReturn(rc, rc);
320	}
321
322	#if 1
323	/*
324	* Add extensions promoted into the core OpenGL profile.
325	*/
326	static const struct
327	{
328	float fGLVersion;
329	const char *pszzExtensions;
330	} s_aPromotedExtensions[] =
331	{
332	{
333	1.1f,
334	" GL_EXT_vertex_array \0"
335	" GL_EXT_polygon_offset \0"
336	" GL_EXT_blend_logic_op \0"
337	" GL_EXT_texture \0"
338	" GL_EXT_copy_texture \0"
339	" GL_EXT_subtexture \0"
340	" GL_EXT_texture_object \0"
341	" GL_ARB_framebuffer_object \0"
342	" GL_ARB_map_buffer_range \0"
343	" GL_ARB_vertex_array_object \0"
344	"\0"
345	},
346	{
347	1.2f,
348	" EXT_texture3D \0"
349	" EXT_bgra \0"
350	" EXT_packed_pixels \0"
351	" EXT_rescale_normal \0"
352	" EXT_separate_specular_color \0"
353	" SGIS_texture_edge_clamp \0"
354	" SGIS_texture_lod \0"
355	" EXT_draw_range_elements \0"
356	"\0"
357	},
358	{
359	1.3f,
360	" GL_ARB_texture_compression \0"
361	" GL_ARB_texture_cube_map \0"
362	" GL_ARB_multisample \0"
363	" GL_ARB_multitexture \0"
364	" GL_ARB_texture_env_add \0"
365	" GL_ARB_texture_env_combine \0"
366	" GL_ARB_texture_env_dot3 \0"
367	" GL_ARB_texture_border_clamp \0"
368	" GL_ARB_transpose_matrix \0"
369	"\0"
370	},
371	{
372	1.5f,
373	" GL_SGIS_generate_mipmap \0"
374	/" GL_NV_blend_equare \0"/
375	" GL_ARB_depth_texture \0"
376	" GL_ARB_shadow \0"
377	" GL_EXT_fog_coord \0"
378	" GL_EXT_multi_draw_arrays \0"
379	" GL_ARB_point_parameters \0"
380	" GL_EXT_secondary_color \0"
381	" GL_EXT_blend_func_separate \0"
382	" GL_EXT_stencil_wrap \0"
383	" GL_ARB_texture_env_crossbar \0"
384	" GL_EXT_texture_lod_bias \0"
385	" GL_ARB_texture_mirrored_repeat \0"
386	" GL_ARB_window_pos \0"
387	"\0"
388	},
389	{
390	1.6f,
391	" GL_ARB_vertex_buffer_object \0"
392	" GL_ARB_occlusion_query \0"
393	" GL_EXT_shadow_funcs \0"
394	},
395	{
396	2.0f,
397	" GL_ARB_shader_objects \0" /??/
398	" GL_ARB_vertex_shader \0" /??/
399	" GL_ARB_fragment_shader \0" /??/
400	" GL_ARB_shading_language_100 \0" /??/
401	" GL_ARB_draw_buffers \0"
402	" GL_ARB_texture_non_power_of_two \0"
403	" GL_ARB_point_sprite \0"
404	" GL_ATI_separate_stencil \0"
405	" GL_EXT_stencil_two_side \0"
406	"\0"
407	},
408	{
409	2.1f,
410	" GL_ARB_pixel_buffer_object \0"
411	" GL_EXT_texture_sRGB \0"
412	"\0"
413	},
414	{
415	3.0f,
416	" GL_ARB_framebuffer_object \0"
417	" GL_ARB_map_buffer_range \0"
418	" GL_ARB_vertex_array_object \0"
419	"\0"
420	},
421	{
422	3.1f,
423	" GL_ARB_copy_buffer \0"
424	" GL_ARB_uniform_buffer_object \0"
425	"\0"
426	},
427	{
428	3.2f,
429	" GL_ARB_vertex_array_bgra \0"
430	" GL_ARB_draw_elements_base_vertex \0"
431	" GL_ARB_fragment_coord_conventions \0"
432	" GL_ARB_provoking_vertex \0"
433	" GL_ARB_seamless_cube_map \0"
434	" GL_ARB_texture_multisample \0"
435	" GL_ARB_depth_clamp \0"
436	" GL_ARB_sync \0"
437	" GL_ARB_geometry_shader4 \0" /??/
438	"\0"
439	},
440	{
441	3.3f,
442	" GL_ARB_blend_func_extended \0"
443	" GL_ARB_sampler_objects \0"
444	" GL_ARB_explicit_attrib_location \0"
445	" GL_ARB_occlusion_query2 \0"
446	" GL_ARB_shader_bit_encoding \0"
447	" GL_ARB_texture_rgb10_a2ui \0"
448	" GL_ARB_texture_swizzle \0"
449	" GL_ARB_timer_query \0"
450	" GL_ARB_vertex_type_2_10_10_10_rev \0"
451	"\0"
452	},
453	{
454	4.0f,
455	" GL_ARB_texture_query_lod \0"
456	" GL_ARB_draw_indirect \0"
457	" GL_ARB_gpu_shader5 \0"
458	" GL_ARB_gpu_shader_fp64 \0"
459	" GL_ARB_shader_subroutine \0"
460	" GL_ARB_tessellation_shader \0"
461	" GL_ARB_texture_buffer_object_rgb32 \0"
462	" GL_ARB_texture_cube_map_array \0"
463	" GL_ARB_texture_gather \0"
464	" GL_ARB_transform_feedback2 \0"
465	" GL_ARB_transform_feedback3 \0"
466	"\0"
467	},
468	{
469	4.1f,
470	" GL_ARB_ES2_compatibility \0"
471	" GL_ARB_get_program_binary \0"
472	" GL_ARB_separate_shader_objects \0"
473	" GL_ARB_shader_precision \0"
474	" GL_ARB_vertex_attrib_64bit \0"
475	" GL_ARB_viewport_array \0"
476	"\0"
477	}
478	};
479
480	uint32_t cPromoted = 0;
481	for (uint32_t i = 0; i < RT_ELEMENTS(s_aPromotedExtensions) && s_aPromotedExtensions[i].fGLVersion <= fGLProfileVersion; i++)
482	{
483	const char *pszExt = s_aPromotedExtensions[i].pszzExtensions;
484	while (*pszExt)
485	{
486	size_t cchExt = strlen(pszExt);
487	Assert(cchExt > 3);
488	Assert(pszExt[0] == ' ');
489	Assert(pszExt[1] != ' ');
490	Assert(pszExt[cchExt - 2] != ' ');
491	Assert(pszExt[cchExt - 1] == ' ');
492
493	if (strstr(*ppszExtensions, pszExt) == NULL)
494	{
495	if (cPromoted++ == 0)
496	{
497	rc = RTStrAAppend(ppszExtensions, " <promoted-extensions:> <promoted-extensions:> <promoted-extensions:> ");
498	AssertRCReturn(rc, rc);
499	}
500
501	rc = RTStrAAppend(ppszExtensions, pszExt);
502	AssertRCReturn(rc, rc);
503	}
504
505	pszExt = strchr(pszExt, '\0') + 1;
506	}
507	}
508	#endif
509
510	return VINF_SUCCESS;
511	}
512
513	/**
514	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnSwitchInitProfile}
515	*/
516	static DECLCALLBACK(void) vmsvga3dShaderIfSwitchInitProfile(PVBOXVMSVGASHADERIF pThis, bool fOtherProfile)
517	{
518	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
519	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
520	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[fOtherProfile ? 2 : 1]);
521	#else
522	NOREF(pThis);
523	NOREF(fOtherProfile);
524	#endif
525	}
526
527
528	/**
529	* @interface_method_impl{VBOXVMSVGASHADERIF, pfnGetNextExtension}
530	*/
531	static DECLCALLBACK(bool) vmsvga3dShaderIfGetNextExtension(PVBOXVMSVGASHADERIF pThis, void **ppvEnumCtx,
532	char *pszBuf, size_t cbBuf, bool fOtherProfile)
533	{
534	PVMSVGA3DSTATE pState = RT_FROM_MEMBER(pThis, VMSVGA3DSTATE, ShaderIf);
535	const char pszCur = ppvEnumCtx ? (const char )ppvEnumCtx
536	: fOtherProfile ? pState->pszOtherExtensions : pState->pszExtensions;
537	while (*pszCur == ' ')
538	pszCur++;
539	if (!*pszCur)
540	return false;
541
542	const char *pszEnd = strchr(pszCur, ' ');
543	AssertReturn(pszEnd, false);
544	size_t cch = pszEnd - pszCur;
545	if (cch < cbBuf)
546	{
547	memcpy(pszBuf, pszCur, cch);
548	pszBuf[cch] = '\0';
549	}
550	else if (cbBuf > 0)
551	{
552	memcpy(pszBuf, "<overflow>", RT_MIN(sizeof("<overflow>"), cbBuf));
553	pszBuf[cbBuf - 1] = '\0';
554	}
555
556	ppvEnumCtx = (void )pszEnd;
557	return true;
558	}
559
560
561	/**
562	* Initializes the VMSVGA3D state during VGA device construction.
563	*
564	* Failure are generally not fatal, 3D support will just be disabled.
565	*
566	* @returns VBox status code.
567	* @param pThis The VGA device state where svga.p3dState will be modified.
568	*/
569	int vmsvga3dInit(PVGASTATE pThis)
570	{
571	AssertCompile(GL_TRUE == 1);
572	AssertCompile(GL_FALSE == 0);
573
574	/*
575	* Load and resolve imports from the external shared libraries.
576	*/
577	RTERRINFOSTATIC ErrInfo;
578	int rc = ExplicitlyLoadVBoxSVGA3D(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
579	if (RT_FAILURE(rc))
580	{
581	LogRel(("VMSVGA3d: Error loading VBoxSVGA3D and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
582	return rc;
583	}
584	#ifdef RT_OS_DARWIN
585	rc = ExplicitlyLoadVBoxSVGA3DObjC(true /fResolveAllImports/, RTErrInfoInitStatic(&ErrInfo));
586	if (RT_FAILURE(rc))
587	{
588	LogRel(("VMSVGA3d: Error loading VBoxSVGA3DObjC and resolving necessary functions: %Rrc - %s\n", rc, ErrInfo.Core.pszMsg));
589	return rc;
590	}
591	#endif
592
593	/*
594	* Allocate the state.
595	*/
596	pThis->svga.p3dState = (PVMSVGA3DSTATE)RTMemAllocZ(sizeof(VMSVGA3DSTATE));
597	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
598
599	#ifdef RT_OS_WINDOWS
600	/* Create event semaphore and async IO thread. */
601	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
602	rc = RTSemEventCreate(&pState->WndRequestSem);
603	if (RT_SUCCESS(rc))
604	{
605	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dWindowThread, pState->WndRequestSem, 0, RTTHREADTYPE_GUI, 0,
606	"VMSVGA3DWND");
607	if (RT_SUCCESS(rc))
608	return VINF_SUCCESS;
609
610	/* bail out. */
611	LogRel(("VMSVGA3d: RTThreadCreate failed: %Rrc\n", rc));
612	RTSemEventDestroy(pState->WndRequestSem);
613	}
614	else
615	LogRel(("VMSVGA3d: RTSemEventCreate failed: %Rrc\n", rc));
616	RTMemFree(pThis->svga.p3dState);
617	pThis->svga.p3dState = NULL;
618	return rc;
619	#else
620	return VINF_SUCCESS;
621	#endif
622	}
623
624	/* We must delay window creation until the PowerOn phase. Init is too early and will cause failures. */
625	int vmsvga3dPowerOn(PVGASTATE pThis)
626	{
627	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
628	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
629	PVMSVGA3DCONTEXT pContext;
630	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
631	PVMSVGA3DCONTEXT pOtherCtx;
632	#endif
633	int rc;
634
635	if (pState->fGLVersion != 0.0)
636	return VINF_SUCCESS; /* already initialized (load state) */
637
638	/*
639	* OpenGL function calls aren't possible without a valid current context, so create a fake one here.
640	*/
641	rc = vmsvga3dContextDefineOgl(pThis, 1, VMSVGA3D_DEF_CTX_F_INIT);
642	AssertRCReturn(rc, rc);
643
644	pContext = pState->papContexts[1];
645	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
646
647	LogRel(("VMSVGA3d: OpenGL version: %s\n"
648	"VMSVGA3d: OpenGL Vendor: %s\n"
649	"VMSVGA3d: OpenGL Renderer: %s\n"
650	"VMSVGA3d: OpenGL shader language version: %s\n",
651	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
652	glGetString(GL_SHADING_LANGUAGE_VERSION)));
653
654	rc = vmsvga3dGatherExtensions(&pState->pszExtensions, VBOX_VMSVGA3D_DEFAULT_OGL_PROFILE);
655	AssertRCReturn(rc, rc);
656	vmsvga3dLogRelExtensions("", pState->pszExtensions);
657
658	pState->fGLVersion = atof((const char *)glGetString(GL_VERSION));
659
660
661	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
662	/*
663	* Get the extension list for the alternative profile so we can better
664	* figure out the shader model and stuff.
665	*/
666	rc = vmsvga3dContextDefineOgl(pThis, 2, VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
667	AssertLogRelRCReturn(rc, rc);
668	pContext = pState->papContexts[1]; /* Array may have been reallocated. */
669
670	pOtherCtx = pState->papContexts[2];
671	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
672
673	LogRel(("VMSVGA3d: Alternative OpenGL version: %s\n"
674	"VMSVGA3d: Alternative OpenGL Vendor: %s\n"
675	"VMSVGA3d: Alternative OpenGL Renderer: %s\n"
676	"VMSVGA3d: Alternative OpenGL shader language version: %s\n",
677	glGetString(GL_VERSION), glGetString(GL_VENDOR), glGetString(GL_RENDERER),
678	glGetString(GL_SHADING_LANGUAGE_VERSION)));
679
680	rc = vmsvga3dGatherExtensions(&pState->pszOtherExtensions, VBOX_VMSVGA3D_OTHER_OGL_PROFILE);
681	AssertRCReturn(rc, rc);
682	vmsvga3dLogRelExtensions("Alternative ", pState->pszOtherExtensions);
683
684	pState->fOtherGLVersion = atof((const char *)glGetString(GL_VERSION));
685
686	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
687	#else
688	pState->pszOtherExtensions = (char *)"";
689	pState->fOtherGLVersion = pState->fGLVersion;
690	#endif
691
692
693	if (vmsvga3dCheckGLExtension(pState, 3.0f, " GL_ARB_framebuffer_object "))
694	{
695	pState->ext.glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC)OGLGETPROCADDRESS("glIsRenderbuffer");
696	pState->ext.glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC)OGLGETPROCADDRESS("glBindRenderbuffer");
697	pState->ext.glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC)OGLGETPROCADDRESS("glDeleteRenderbuffers");
698	pState->ext.glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC)OGLGETPROCADDRESS("glGenRenderbuffers");
699	pState->ext.glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC)OGLGETPROCADDRESS("glRenderbufferStorage");
700	pState->ext.glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC)OGLGETPROCADDRESS("glGetRenderbufferParameteriv");
701	pState->ext.glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC)OGLGETPROCADDRESS("glIsFramebuffer");
702	pState->ext.glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBindFramebuffer");
703	pState->ext.glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteFramebuffers");
704	pState->ext.glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)OGLGETPROCADDRESS("glGenFramebuffers");
705	pState->ext.glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)OGLGETPROCADDRESS("glCheckFramebufferStatus");
706	pState->ext.glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC)OGLGETPROCADDRESS("glFramebufferTexture1D");
707	pState->ext.glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)OGLGETPROCADDRESS("glFramebufferTexture2D");
708	pState->ext.glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC)OGLGETPROCADDRESS("glFramebufferTexture3D");
709	pState->ext.glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC)OGLGETPROCADDRESS("glFramebufferRenderbuffer");
710	pState->ext.glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)OGLGETPROCADDRESS("glGetFramebufferAttachmentParameteriv");
711	pState->ext.glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)OGLGETPROCADDRESS("glGenerateMipmap");
712	pState->ext.glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC)OGLGETPROCADDRESS("glBlitFramebuffer");
713	pState->ext.glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)OGLGETPROCADDRESS("glRenderbufferStorageMultisample");
714	pState->ext.glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)OGLGETPROCADDRESS("glFramebufferTextureLayer");
715	}
716	pState->ext.glPointParameterf = (PFNGLPOINTPARAMETERFPROC)OGLGETPROCADDRESS("glPointParameterf");
717	AssertMsgReturn(pState->ext.glPointParameterf, ("glPointParameterf missing"), VERR_NOT_IMPLEMENTED);
718	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x102
719	pState->ext.glBlendColor = (PFNGLBLENDCOLORPROC)OGLGETPROCADDRESS("glBlendColor");
720	AssertMsgReturn(pState->ext.glBlendColor, ("glBlendColor missing"), VERR_NOT_IMPLEMENTED);
721	pState->ext.glBlendEquation = (PFNGLBLENDEQUATIONPROC)OGLGETPROCADDRESS("glBlendEquation");
722	AssertMsgReturn(pState->ext.glBlendEquation, ("glBlendEquation missing"), VERR_NOT_IMPLEMENTED);
723	#endif
724	pState->ext.glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC)OGLGETPROCADDRESS("glBlendEquationSeparate");
725	AssertMsgReturn(pState->ext.glBlendEquationSeparate, ("glBlendEquationSeparate missing"), VERR_NOT_IMPLEMENTED);
726	pState->ext.glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC)OGLGETPROCADDRESS("glBlendFuncSeparate");
727	AssertMsgReturn(pState->ext.glBlendFuncSeparate, ("glBlendFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
728	pState->ext.glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC)OGLGETPROCADDRESS("glStencilOpSeparate");
729	AssertMsgReturn(pState->ext.glStencilOpSeparate, ("glStencilOpSeparate missing"), VERR_NOT_IMPLEMENTED);
730	pState->ext.glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC)OGLGETPROCADDRESS("glStencilFuncSeparate");
731	AssertMsgReturn(pState->ext.glStencilFuncSeparate, ("glStencilFuncSeparate missing"), VERR_NOT_IMPLEMENTED);
732	pState->ext.glBindBuffer = (PFNGLBINDBUFFERPROC)OGLGETPROCADDRESS("glBindBuffer");
733	AssertMsgReturn(pState->ext.glBindBuffer, ("glBindBuffer missing"), VERR_NOT_IMPLEMENTED);
734	pState->ext.glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)OGLGETPROCADDRESS("glDeleteBuffers");
735	AssertMsgReturn(pState->ext.glDeleteBuffers, ("glDeleteBuffers missing"), VERR_NOT_IMPLEMENTED);
736	pState->ext.glGenBuffers = (PFNGLGENBUFFERSPROC)OGLGETPROCADDRESS("glGenBuffers");
737	AssertMsgReturn(pState->ext.glGenBuffers, ("glGenBuffers missing"), VERR_NOT_IMPLEMENTED);
738	pState->ext.glBufferData = (PFNGLBUFFERDATAPROC)OGLGETPROCADDRESS("glBufferData");
739	AssertMsgReturn(pState->ext.glBufferData, ("glBufferData missing"), VERR_NOT_IMPLEMENTED);
740	pState->ext.glMapBuffer = (PFNGLMAPBUFFERPROC)OGLGETPROCADDRESS("glMapBuffer");
741	AssertMsgReturn(pState->ext.glMapBuffer, ("glMapBuffer missing"), VERR_NOT_IMPLEMENTED);
742	pState->ext.glUnmapBuffer = (PFNGLUNMAPBUFFERPROC)OGLGETPROCADDRESS("glUnmapBuffer");
743	AssertMsgReturn(pState->ext.glUnmapBuffer, ("glUnmapBuffer missing"), VERR_NOT_IMPLEMENTED);
744	pState->ext.glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glEnableVertexAttribArray");
745	AssertMsgReturn(pState->ext.glEnableVertexAttribArray, ("glEnableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
746	pState->ext.glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC)OGLGETPROCADDRESS("glDisableVertexAttribArray");
747	AssertMsgReturn(pState->ext.glDisableVertexAttribArray, ("glDisableVertexAttribArray missing"), VERR_NOT_IMPLEMENTED);
748	pState->ext.glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)OGLGETPROCADDRESS("glVertexAttribPointer");
749	AssertMsgReturn(pState->ext.glVertexAttribPointer, ("glVertexAttribPointer missing"), VERR_NOT_IMPLEMENTED);
750	pState->ext.glFogCoordPointer = (PFNGLFOGCOORDPOINTERPROC)OGLGETPROCADDRESS("glFogCoordPointer");
751	AssertMsgReturn(pState->ext.glFogCoordPointer, ("glFogCoordPointer missing"), VERR_NOT_IMPLEMENTED);
752	pState->ext.glActiveTexture = (PFNGLACTIVETEXTUREPROC)OGLGETPROCADDRESS("glActiveTexture");
753	AssertMsgReturn(pState->ext.glActiveTexture, ("glActiveTexture missing"), VERR_NOT_IMPLEMENTED);
754	#if VBOX_VMSVGA3D_GL_HACK_LEVEL < 0x103
755	pState->ext.glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)OGLGETPROCADDRESS("glClientActiveTexture");
756	AssertMsgReturn(pState->ext.glClientActiveTexture, ("glClientActiveTexture missing"), VERR_NOT_IMPLEMENTED);
757	#endif
758	pState->ext.glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)OGLGETPROCADDRESS("glGetProgramivARB");
759	AssertMsgReturn(pState->ext.glGetProgramivARB, ("glGetProgramivARB missing"), VERR_NOT_IMPLEMENTED);
760
761	/* OpenGL 3.2 core */
762	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_draw_elements_base_vertex "))
763	{
764	pState->ext.glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsBaseVertex");
765	pState->ext.glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC)OGLGETPROCADDRESS("glDrawElementsInstancedBaseVertex");
766	}
767	else
768	LogRel(("VMSVGA3d: missing extension GL_ARB_draw_elements_base_vertex\n"));
769
770	/* OpenGL 3.2 core */
771	if (vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_provoking_vertex "))
772	{
773	pState->ext.glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC)OGLGETPROCADDRESS("glProvokingVertex");
774	}
775	else
776	LogRel(("VMSVGA3d: missing extension GL_ARB_provoking_vertex\n"));
777
778	/* Extension support */
779	#if defined(RT_OS_DARWIN)
780	/** @todo OpenGL version history suggest this, verify... */
781	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 2.0f, " GL_EXT_stencil_two_side ");
782	#else
783	pState->ext.fEXT_stencil_two_side = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_stencil_two_side ");
784	#endif
785
786	/*
787	* Initialize the capabilities with sensible defaults.
788	*/
789	pState->caps.maxActiveLights = 1;
790	pState->caps.maxTextureBufferSize = 65536;
791	pState->caps.maxTextures = 1;
792	pState->caps.maxClipDistances = 4;
793	pState->caps.maxColorAttachments = 1;
794	pState->caps.maxRectangleTextureSize = 2048;
795	pState->caps.maxTextureAnisotropy = 2;
796	pState->caps.maxVertexShaderInstructions = 1024;
797	pState->caps.maxFragmentShaderInstructions = 1024;
798	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_NONE;
799	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_NONE;
800	pState->caps.flPointSize[0] = 1;
801	pState->caps.flPointSize[1] = 1;
802
803	/*
804	* Query capabilities
805	*/
806	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_LIGHTS, &pState->caps.maxActiveLights));
807	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &pState->caps.maxTextureBufferSize));
808	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &pState->caps.maxTextures));
809	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE /* The alternative profile has a higher number here (ati/darwin). */
810	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pOtherCtx);
811	VMSVGA3D_INIT_CHECKED_BOTH(pState, pOtherCtx, pContext, glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
812	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
813	#else
814	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_CLIP_DISTANCES, &pState->caps.maxClipDistances));
815	#endif
816	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &pState->caps.maxColorAttachments));
817	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE, &pState->caps.maxRectangleTextureSize));
818	VMSVGA3D_INIT_CHECKED(glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &pState->caps.maxTextureAnisotropy));
819	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx, glGetFloatv(GL_ALIASED_POINT_SIZE_RANGE, pState->caps.flPointSize));
820
821	if (pState->ext.glGetProgramivARB)
822	{
823	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
824	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
825	&pState->caps.maxFragmentShaderTemps));
826	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
827	pState->ext.glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
828	&pState->caps.maxFragmentShaderInstructions));
829	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
830	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB,
831	&pState->caps.maxVertexShaderTemps));
832	VMSVGA3D_INIT_CHECKED_BOTH(pState, pContext, pOtherCtx,
833	pState->ext.glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB,
834	&pState->caps.maxVertexShaderInstructions));
835	}
836	pState->caps.fS3TCSupported = vmsvga3dCheckGLExtension(pState, 0.0f, " GL_EXT_texture_compression_s3tc ");
837
838	/* http://http://www.opengl.org/wiki/Detecting_the_Shader_Model
839	* ARB Assembly Language
840	* These are done through testing the presence of extensions. You should test them in this order:
841	* GL_NV_gpu_program4: SM 4.0 or better.
842	* GL_NV_vertex_program3: SM 3.0 or better.
843	* GL_ARB_fragment_program: SM 2.0 or better.
844	* ATI does not support higher than SM 2.0 functionality in assembly shaders.
845	*
846	*/
847	/** @todo distinguish between vertex and pixel shaders??? */
848	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_gpu_program4 ")
849	\|\| strstr(pState->pszOtherExtensions, " GL_NV_gpu_program4 "))
850	{
851	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_40;
852	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_40;
853	}
854	else
855	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_NV_vertex_program3 ")
856	\|\| strstr(pState->pszOtherExtensions, " GL_NV_vertex_program3 ")
857	\|\| vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_shader_texture_lod ") /* Wine claims this suggests SM 3.0 support */
858	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_shader_texture_lod ")
859	)
860	{
861	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_30;
862	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_30;
863	}
864	else
865	if ( vmsvga3dCheckGLExtension(pState, 0.0f, " GL_ARB_fragment_program ")
866	\|\| strstr(pState->pszOtherExtensions, " GL_ARB_fragment_program "))
867	{
868	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_20;
869	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_20;
870	}
871	else
872	{
873	LogRel(("VMSVGA3D: WARNING: unknown support for assembly shaders!!\n"));
874	pState->caps.vertexShaderVersion = SVGA3DVSVERSION_11;
875	pState->caps.fragmentShaderVersion = SVGA3DPSVERSION_11;
876	}
877
878	if (!vmsvga3dCheckGLExtension(pState, 3.2f, " GL_ARB_vertex_array_bgra "))
879	{
880	/** @todo Intel drivers don't support this extension! */
881	LogRel(("VMSVGA3D: WARNING: Missing required extension GL_ARB_vertex_array_bgra (d3dcolor)!!!\n"));
882	}
883	#if 0
884	SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND = 11,
885	SVGA3D_DEVCAP_QUERY_TYPES = 15,
886	SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING = 16,
887	SVGA3D_DEVCAP_MAX_POINT_SIZE = 17,
888	SVGA3D_DEVCAP_MAX_SHADER_TEXTURES = 18,
889	SVGA3D_DEVCAP_MAX_VOLUME_EXTENT = 21,
890	SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT = 22,
891	SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO = 23,
892	SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY = 24,
893	SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT = 25,
894	SVGA3D_DEVCAP_MAX_VERTEX_INDEX = 26,
895	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS = 28,
896	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS = 29,
897	SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS = 30,
898	SVGA3D_DEVCAP_TEXTURE_OPS = 31,
899	SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8 = 32,
900	SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8 = 33,
901	SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10 = 34,
902	SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5 = 35,
903	SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5 = 36,
904	SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4 = 37,
905	SVGA3D_DEVCAP_SURFACEFMT_R5G6B5 = 38,
906	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16 = 39,
907	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8 = 40,
908	SVGA3D_DEVCAP_SURFACEFMT_ALPHA8 = 41,
909	SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8 = 42,
910	SVGA3D_DEVCAP_SURFACEFMT_Z_D16 = 43,
911	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8 = 44,
912	SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8 = 45,
913	SVGA3D_DEVCAP_SURFACEFMT_DXT1 = 46,
914	SVGA3D_DEVCAP_SURFACEFMT_DXT2 = 47,
915	SVGA3D_DEVCAP_SURFACEFMT_DXT3 = 48,
916	SVGA3D_DEVCAP_SURFACEFMT_DXT4 = 49,
917	SVGA3D_DEVCAP_SURFACEFMT_DXT5 = 50,
918	SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8 = 51,
919	SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10 = 52,
920	SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8 = 53,
921	SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8 = 54,
922	SVGA3D_DEVCAP_SURFACEFMT_CxV8U8 = 55,
923	SVGA3D_DEVCAP_SURFACEFMT_R_S10E5 = 56,
924	SVGA3D_DEVCAP_SURFACEFMT_R_S23E8 = 57,
925	SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5 = 58,
926	SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8 = 59,
927	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5 = 60,
928	SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8 = 61,
929	SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES = 63,
930	SVGA3D_DEVCAP_SURFACEFMT_V16U16 = 65,
931	SVGA3D_DEVCAP_SURFACEFMT_G16R16 = 66,
932	SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16 = 67,
933	SVGA3D_DEVCAP_SURFACEFMT_UYVY = 68,
934	SVGA3D_DEVCAP_SURFACEFMT_YUY2 = 69,
935	SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES = 70,
936	SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES = 71,
937	SVGA3D_DEVCAP_ALPHATOCOVERAGE = 72,
938	SVGA3D_DEVCAP_SUPERSAMPLE = 73,
939	SVGA3D_DEVCAP_AUTOGENMIPMAPS = 74,
940	SVGA3D_DEVCAP_SURFACEFMT_NV12 = 75,
941	SVGA3D_DEVCAP_SURFACEFMT_AYUV = 76,
942	SVGA3D_DEVCAP_SURFACEFMT_Z_DF16 = 79,
943	SVGA3D_DEVCAP_SURFACEFMT_Z_DF24 = 80,
944	SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT = 81,
945	SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM = 82,
946	SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM = 83,
947	#endif
948
949	LogRel(("VMSVGA3d: Capabilities:\n"));
950	LogRel(("VMSVGA3d: maxActiveLights=%-2d maxTextures=%-2d maxTextureBufferSize=%d\n",
951	pState->caps.maxActiveLights, pState->caps.maxTextures, pState->caps.maxTextureBufferSize));
952	LogRel(("VMSVGA3d: maxClipDistances=%-2d maxColorAttachments=%-2d maxClipDistances=%d\n",
953	pState->caps.maxClipDistances, pState->caps.maxColorAttachments, pState->caps.maxClipDistances));
954	LogRel(("VMSVGA3d: maxColorAttachments=%-2d maxTextureAnisotropy=%-2d maxRectangleTextureSize=%d\n",
955	pState->caps.maxColorAttachments, pState->caps.maxTextureAnisotropy, pState->caps.maxRectangleTextureSize));
956	LogRel(("VMSVGA3d: maxVertexShaderTemps=%-2d maxVertexShaderInstructions=%d maxFragmentShaderInstructions=%d\n",
957	pState->caps.maxVertexShaderTemps, pState->caps.maxVertexShaderInstructions, pState->caps.maxFragmentShaderInstructions));
958	LogRel(("VMSVGA3d: maxFragmentShaderTemps=%d flPointSize={%d.%02u, %d.%02u}\n",
959	pState->caps.maxFragmentShaderTemps,
960	(int)pState->caps.flPointSize[0], (int)(pState->caps.flPointSize[0] * 100) % 100,
961	(int)pState->caps.flPointSize[1], (int)(pState->caps.flPointSize[1] * 100) % 100));
962	LogRel(("VMSVGA3d: fragmentShaderVersion=%-2d vertexShaderVersion=%-2d fS3TCSupported=%d\n",
963	pState->caps.fragmentShaderVersion, pState->caps.vertexShaderVersion, pState->caps.fS3TCSupported));
964
965
966	/* Initialize the shader library. */
967	pState->ShaderIf.pfnSwitchInitProfile = vmsvga3dShaderIfSwitchInitProfile;
968	pState->ShaderIf.pfnGetNextExtension = vmsvga3dShaderIfGetNextExtension;
969	rc = ShaderInitLib(&pState->ShaderIf);
970	AssertRC(rc);
971
972	/* Cleanup */
973	rc = vmsvga3dContextDestroy(pThis, 1);
974	AssertRC(rc);
975	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
976	rc = vmsvga3dContextDestroy(pThis, 2);
977	AssertRC(rc);
978	#endif
979
980	if ( pState->fGLVersion < 3.0
981	&& pState->fOtherGLVersion < 3.0 /* darwin: legacy profile hack */)
982	{
983	LogRel(("VMSVGA3d: unsupported OpenGL version; minimum is 3.0\n"));
984	return VERR_NOT_IMPLEMENTED;
985	}
986	if ( !pState->ext.glIsRenderbuffer
987	\|\| !pState->ext.glBindRenderbuffer
988	\|\| !pState->ext.glDeleteRenderbuffers
989	\|\| !pState->ext.glGenRenderbuffers
990	\|\| !pState->ext.glRenderbufferStorage
991	\|\| !pState->ext.glGetRenderbufferParameteriv
992	\|\| !pState->ext.glIsFramebuffer
993	\|\| !pState->ext.glBindFramebuffer
994	\|\| !pState->ext.glDeleteFramebuffers
995	\|\| !pState->ext.glGenFramebuffers
996	\|\| !pState->ext.glCheckFramebufferStatus
997	\|\| !pState->ext.glFramebufferTexture1D
998	\|\| !pState->ext.glFramebufferTexture2D
999	\|\| !pState->ext.glFramebufferTexture3D
1000	\|\| !pState->ext.glFramebufferRenderbuffer
1001	\|\| !pState->ext.glGetFramebufferAttachmentParameteriv
1002	\|\| !pState->ext.glGenerateMipmap
1003	\|\| !pState->ext.glBlitFramebuffer
1004	\|\| !pState->ext.glRenderbufferStorageMultisample
1005	\|\| !pState->ext.glFramebufferTextureLayer)
1006	{
1007	LogRel(("VMSVGA3d: missing required OpenGL extension; aborting\n"));
1008	return VERR_NOT_IMPLEMENTED;
1009	}
1010
1011	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
1012	pState->idTestContext = SVGA_ID_INVALID;
1013	#endif
1014	return VINF_SUCCESS;
1015	}
1016
1017	int vmsvga3dReset(PVGASTATE pThis)
1018	{
1019	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1020	AssertReturn(pThis->svga.p3dState, VERR_NO_MEMORY);
1021
1022	/* Destroy all leftover surfaces. */
1023	for (uint32_t i = 0; i < pState->cSurfaces; i++)
1024	{
1025	if (pState->papSurfaces[i]->id != SVGA3D_INVALID_ID)
1026	vmsvga3dSurfaceDestroy(pThis, pState->papSurfaces[i]->id);
1027	}
1028
1029	/* Destroy all leftover contexts. */
1030	for (uint32_t i = 0; i < pState->cContexts; i++)
1031	{
1032	if (pState->papContexts[i]->id != SVGA3D_INVALID_ID)
1033	vmsvga3dContextDestroy(pThis, pState->papContexts[i]->id);
1034	}
1035
1036	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
1037	vmsvga3dContextDestroyOgl(pThis, &pState->SharedCtx, VMSVGA3D_SHARED_CTX_ID);
1038
1039	return VINF_SUCCESS;
1040	}
1041
1042	int vmsvga3dTerminate(PVGASTATE pThis)
1043	{
1044	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1045	AssertReturn(pState, VERR_WRONG_ORDER);
1046	int rc;
1047
1048	rc = vmsvga3dReset(pThis);
1049	AssertRCReturn(rc, rc);
1050
1051	/* Terminate the shader library. */
1052	rc = ShaderDestroyLib();
1053	AssertRC(rc);
1054
1055	#ifdef RT_OS_WINDOWS
1056	/* Terminate the window creation thread. */
1057	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_EXIT, 0, 0);
1058	AssertRCReturn(rc, rc);
1059
1060	RTSemEventDestroy(pState->WndRequestSem);
1061	#elif defined(RT_OS_DARWIN)
1062
1063	#elif defined(RT_OS_LINUX)
1064	/* signal to the thread that it is supposed to exit */
1065	pState->bTerminate = true;
1066	/* wait for it to terminate */
1067	rc = RTThreadWait(pState->pWindowThread, 10000, NULL);
1068	AssertRC(rc);
1069	XCloseDisplay(pState->display);
1070	#endif
1071
1072	RTStrFree(pState->pszExtensions);
1073	pState->pszExtensions = NULL;
1074	#ifdef VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE
1075	RTStrFree(pState->pszOtherExtensions);
1076	#endif
1077	pState->pszOtherExtensions = NULL;
1078
1079	return VINF_SUCCESS;
1080	}
1081
1082
1083	/**
1084	* Worker for vmsvga3dQueryCaps that figures out supported operations for a
1085	* given surface format capability.
1086	*
1087	* @returns Supported/indented operations (SVGA3DFORMAT_OP_XXX).
1088	* @param pState3D The 3D state.
1089	* @param idx3dCaps The SVGA3D_CAPS_XXX value of the surface format.
1090	*
1091	* @remarks See fromat_cap_table in svga_format.c (mesa/gallium) for a reference
1092	* of implicit guest expectations:
1093	* http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/svga/svga_format.c
1094	*/
1095	static uint32_t vmsvga3dGetSurfaceFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1096	{
1097	uint32_t result = 0;
1098
1099	/** @todo missing:
1100	*
1101	* SVGA3DFORMAT_OP_PIXELSIZE
1102	*/
1103
1104	switch (idx3dCaps)
1105	{
1106	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1107	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1108	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1109	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1110	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1111	\| SVGA3DFORMAT_OP_DISPLAYMODE /* Should not be set for alpha formats. */
1112	\| SVGA3DFORMAT_OP_3DACCELERATION; /* implies OP_DISPLAYMODE */
1113	break;
1114
1115	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1116	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1117	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1118	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1119	result \|= SVGA3DFORMAT_OP_MEMBEROFGROUP_ARGB
1120	\| SVGA3DFORMAT_OP_CONVERT_TO_ARGB
1121	\| SVGA3DFORMAT_OP_SAME_FORMAT_UP_TO_ALPHA_RENDERTARGET;
1122	break;
1123	}
1124
1125	/** @todo check hardware caps! */
1126	switch (idx3dCaps)
1127	{
1128	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1129	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1130	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1131	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1132	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1133	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1134	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1135	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1136	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1137	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1138	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1139	result \|= SVGA3DFORMAT_OP_TEXTURE
1140	\| SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET
1141	\| SVGA3DFORMAT_OP_OFFSCREENPLAIN
1142	\| SVGA3DFORMAT_OP_SAME_FORMAT_RENDERTARGET
1143	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1144	\| SVGA3DFORMAT_OP_CUBETEXTURE
1145	\| SVGA3DFORMAT_OP_SRGBREAD
1146	\| SVGA3DFORMAT_OP_SRGBWRITE;
1147	break;
1148
1149	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1150	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1151	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1152	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1153	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1154	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1155	result \|= SVGA3DFORMAT_OP_ZSTENCIL
1156	\| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH
1157	\| SVGA3DFORMAT_OP_TEXTURE /* Necessary for Ubuntu Unity */;
1158	break;
1159
1160	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1161	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1162	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1163	result \|= SVGA3DFORMAT_OP_TEXTURE
1164	\| SVGA3DFORMAT_OP_VOLUMETEXTURE
1165	\| SVGA3DFORMAT_OP_CUBETEXTURE
1166	\| SVGA3DFORMAT_OP_SRGBREAD;
1167	break;
1168
1169	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1170	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1171	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1172	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1173	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1174	break;
1175
1176	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1177	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1178	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1179	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1180	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1181	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1182	break;
1183
1184	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1185	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1186	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1187
1188	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1189	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1190	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1191	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1192	break;
1193	}
1194	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1195
1196	return result;
1197	}
1198
1199	static uint32_t vmsvga3dGetDepthFormatSupport(PVMSVGA3DSTATE pState3D, uint32_t idx3dCaps)
1200	{
1201	uint32_t result = 0;
1202
1203	/** @todo test this somehow */
1204	result = SVGA3DFORMAT_OP_ZSTENCIL \| SVGA3DFORMAT_OP_ZSTENCIL_WITH_ARBITRARY_COLOR_DEPTH;
1205
1206	Log(("CAPS: %s =\n%s\n", vmsvga3dGetCapString(idx3dCaps), vmsvga3dGet3dFormatString(result)));
1207	return result;
1208	}
1209
1210
1211	int vmsvga3dQueryCaps(PVGASTATE pThis, uint32_t idx3dCaps, uint32_t *pu32Val)
1212	{
1213	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1214	AssertReturn(pState, VERR_NO_MEMORY);
1215	int rc = VINF_SUCCESS;
1216
1217	*pu32Val = 0;
1218
1219	/*
1220	* The capabilities access by current (2015-03-01) linux sources (gallium,
1221	* vmwgfx, xorg-video-vmware) are annotated, caps without xref annotations
1222	* aren't access.
1223	*/
1224
1225	switch (idx3dCaps)
1226	{
1227	/* Linux: vmwgfx_fifo.c in kmod; only used with SVGA_CAP_GBOBJECTS. */
1228	case SVGA3D_DEVCAP_3D:
1229	pu32Val = 1; / boolean? */
1230	break;
1231
1232	case SVGA3D_DEVCAP_MAX_LIGHTS:
1233	*pu32Val = pState->caps.maxActiveLights;
1234	break;
1235
1236	case SVGA3D_DEVCAP_MAX_TEXTURES:
1237	*pu32Val = pState->caps.maxTextures;
1238	break;
1239
1240	case SVGA3D_DEVCAP_MAX_CLIP_PLANES:
1241	*pu32Val = pState->caps.maxClipDistances;
1242	break;
1243
1244	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1245	case SVGA3D_DEVCAP_VERTEX_SHADER_VERSION:
1246	*pu32Val = pState->caps.vertexShaderVersion;
1247	break;
1248
1249	case SVGA3D_DEVCAP_VERTEX_SHADER:
1250	/* boolean? */
1251	*pu32Val = (pState->caps.vertexShaderVersion != SVGA3DVSVERSION_NONE);
1252	break;
1253
1254	/* Linux: svga_screen.c in gallium; 3.0 or later required. */
1255	case SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION:
1256	*pu32Val = pState->caps.fragmentShaderVersion;
1257	break;
1258
1259	case SVGA3D_DEVCAP_FRAGMENT_SHADER:
1260	/* boolean? */
1261	*pu32Val = (pState->caps.fragmentShaderVersion != SVGA3DPSVERSION_NONE);
1262	break;
1263
1264	case SVGA3D_DEVCAP_S23E8_TEXTURES:
1265	case SVGA3D_DEVCAP_S10E5_TEXTURES:
1266	/* Must be obsolete by now; surface format caps specify the same thing. */
1267	rc = VERR_INVALID_PARAMETER;
1268	break;
1269
1270	case SVGA3D_DEVCAP_MAX_FIXED_VERTEXBLEND:
1271	break;
1272
1273	/*
1274	* 2. The BUFFER_FORMAT capabilities are deprecated, and they always
1275	* return TRUE. Even on physical hardware that does not support
1276	* these formats natively, the SVGA3D device will provide an emulation
1277	* which should be invisible to the guest OS.
1278	*/
1279	case SVGA3D_DEVCAP_D16_BUFFER_FORMAT:
1280	case SVGA3D_DEVCAP_D24S8_BUFFER_FORMAT:
1281	case SVGA3D_DEVCAP_D24X8_BUFFER_FORMAT:
1282	*pu32Val = 1;
1283	break;
1284
1285	case SVGA3D_DEVCAP_QUERY_TYPES:
1286	break;
1287
1288	case SVGA3D_DEVCAP_TEXTURE_GRADIENT_SAMPLING:
1289	break;
1290
1291	/* Linux: svga_screen.c in gallium; capped at 80.0, default 1.0. */
1292	case SVGA3D_DEVCAP_MAX_POINT_SIZE:
1293	AssertCompile(sizeof(uint32_t) == sizeof(float));
1294	(float )pu32Val = pState->caps.flPointSize[1];
1295	break;
1296
1297	case SVGA3D_DEVCAP_MAX_SHADER_TEXTURES:
1298	/** @todo ?? */
1299	rc = VERR_INVALID_PARAMETER;
1300	break;
1301
1302	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_2D_LEVELS); have default if missing. */
1303	case SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH:
1304	case SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT:
1305	*pu32Val = pState->caps.maxRectangleTextureSize;
1306	break;
1307
1308	/* Linux: svga_screen.c in gallium (for PIPE_CAP_MAX_TEXTURE_3D_LEVELS); have default if missing. */
1309	case SVGA3D_DEVCAP_MAX_VOLUME_EXTENT:
1310	//*pu32Val = pCaps->MaxVolumeExtent;
1311	break;
1312
1313	case SVGA3D_DEVCAP_MAX_TEXTURE_REPEAT:
1314	pu32Val = 32768; / hardcoded in Wine */
1315	break;
1316
1317	case SVGA3D_DEVCAP_MAX_TEXTURE_ASPECT_RATIO:
1318	//*pu32Val = pCaps->MaxTextureAspectRatio;
1319	break;
1320
1321	/* Linux: svga_screen.c in gallium (for PIPE_CAPF_MAX_TEXTURE_ANISOTROPY); defaults to 4.0. */
1322	case SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY:
1323	*pu32Val = pState->caps.maxTextureAnisotropy;
1324	break;
1325
1326	case SVGA3D_DEVCAP_MAX_PRIMITIVE_COUNT:
1327	case SVGA3D_DEVCAP_MAX_VERTEX_INDEX:
1328	pu32Val = 0xFFFFF; / hardcoded in Wine */
1329	break;
1330
1331	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_INSTRUCTIONS); defaults to 512. */
1332	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS:
1333	*pu32Val = pState->caps.maxVertexShaderInstructions;
1334	break;
1335
1336	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS:
1337	*pu32Val = pState->caps.maxFragmentShaderInstructions;
1338	break;
1339
1340	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_VERTEX/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1341	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS:
1342	*pu32Val = pState->caps.maxVertexShaderTemps;
1343	break;
1344
1345	/* Linux: svga_screen.c in gallium (for PIPE_SHADER_FRAGMENT/PIPE_SHADER_CAP_MAX_TEMPS); defaults to 32. */
1346	case SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS:
1347	*pu32Val = pState->caps.maxFragmentShaderTemps;
1348	break;
1349
1350	case SVGA3D_DEVCAP_TEXTURE_OPS:
1351	break;
1352
1353	case SVGA3D_DEVCAP_MULTISAMPLE_NONMASKABLESAMPLES:
1354	break;
1355
1356	case SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES:
1357	break;
1358
1359	case SVGA3D_DEVCAP_ALPHATOCOVERAGE:
1360	break;
1361
1362	case SVGA3D_DEVCAP_SUPERSAMPLE:
1363	break;
1364
1365	case SVGA3D_DEVCAP_AUTOGENMIPMAPS:
1366	//*pu32Val = !!(pCaps->Caps2 & D3DCAPS2_CANAUTOGENMIPMAP);
1367	break;
1368
1369	case SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEXTURES:
1370	break;
1371
1372	case SVGA3D_DEVCAP_MAX_RENDER_TARGETS: /** @todo same thing? */
1373	case SVGA3D_DEVCAP_MAX_SIMULTANEOUS_RENDER_TARGETS:
1374	*pu32Val = pState->caps.maxColorAttachments;
1375	break;
1376
1377	/*
1378	* This is the maximum number of SVGA context IDs that the guest
1379	* can define using SVGA_3D_CMD_CONTEXT_DEFINE.
1380	*/
1381	case SVGA3D_DEVCAP_MAX_CONTEXT_IDS:
1382	*pu32Val = SVGA3D_MAX_CONTEXT_IDS;
1383	break;
1384
1385	/*
1386	* This is the maximum number of SVGA surface IDs that the guest
1387	* can define using SVGA_3D_CMD_SURFACE_DEFINE*.
1388	*/
1389	case SVGA3D_DEVCAP_MAX_SURFACE_IDS:
1390	*pu32Val = SVGA3D_MAX_SURFACE_IDS;
1391	break;
1392
1393	#if 0 /* Appeared more recently, not yet implemented. */
1394	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1395	case SVGA3D_DEVCAP_LINE_AA:
1396	break;
1397	/* Linux: svga_screen.c in gallium; defaults to FALSE. */
1398	case SVGA3D_DEVCAP_LINE_STIPPLE:
1399	break;
1400	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1401	case SVGA3D_DEVCAP_MAX_LINE_WIDTH:
1402	break;
1403	/* Linux: svga_screen.c in gallium; defaults to 1.0. */
1404	case SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH:
1405	break;
1406	#endif
1407
1408	/*
1409	* Supported surface formats.
1410	* Linux: svga_format.c in gallium, format_cap_table defines implicit expectations.
1411	*/
1412	case SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8:
1413	case SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8:
1414	case SVGA3D_DEVCAP_SURFACEFMT_A2R10G10B10:
1415	case SVGA3D_DEVCAP_SURFACEFMT_X1R5G5B5:
1416	case SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5:
1417	case SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4:
1418	case SVGA3D_DEVCAP_SURFACEFMT_R5G6B5:
1419	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE16:
1420	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8_ALPHA8:
1421	case SVGA3D_DEVCAP_SURFACEFMT_ALPHA8:
1422	case SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8:
1423	case SVGA3D_DEVCAP_SURFACEFMT_Z_D16:
1424	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8:
1425	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8:
1426	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF16:
1427	case SVGA3D_DEVCAP_SURFACEFMT_Z_DF24:
1428	case SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8_INT:
1429	case SVGA3D_DEVCAP_SURFACEFMT_DXT1:
1430	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1431	break;
1432
1433	case SVGA3D_DEVCAP_SURFACEFMT_DXT2:
1434	case SVGA3D_DEVCAP_SURFACEFMT_DXT4:
1435	pu32Val = 0; / apparently not supported in OpenGL */
1436	break;
1437
1438	case SVGA3D_DEVCAP_SURFACEFMT_DXT3:
1439	case SVGA3D_DEVCAP_SURFACEFMT_DXT5:
1440	case SVGA3D_DEVCAP_SURFACEFMT_BUMPX8L8V8U8:
1441	case SVGA3D_DEVCAP_SURFACEFMT_A2W10V10U10:
1442	case SVGA3D_DEVCAP_SURFACEFMT_BUMPU8V8:
1443	case SVGA3D_DEVCAP_SURFACEFMT_Q8W8V8U8:
1444	case SVGA3D_DEVCAP_SURFACEFMT_CxV8U8:
1445	case SVGA3D_DEVCAP_SURFACEFMT_R_S10E5:
1446	case SVGA3D_DEVCAP_SURFACEFMT_R_S23E8:
1447	case SVGA3D_DEVCAP_SURFACEFMT_RG_S10E5:
1448	case SVGA3D_DEVCAP_SURFACEFMT_RG_S23E8:
1449	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S10E5:
1450	case SVGA3D_DEVCAP_SURFACEFMT_ARGB_S23E8:
1451	case SVGA3D_DEVCAP_SURFACEFMT_V16U16:
1452	case SVGA3D_DEVCAP_SURFACEFMT_G16R16:
1453	case SVGA3D_DEVCAP_SURFACEFMT_A16B16G16R16:
1454	case SVGA3D_DEVCAP_SURFACEFMT_UYVY:
1455	case SVGA3D_DEVCAP_SURFACEFMT_YUY2:
1456	case SVGA3D_DEVCAP_SURFACEFMT_NV12:
1457	case SVGA3D_DEVCAP_SURFACEFMT_AYUV:
1458	*pu32Val = vmsvga3dGetSurfaceFormatSupport(pState, idx3dCaps);
1459	break;
1460
1461	/* Linux: Not referenced in current sources. */
1462	case SVGA3D_DEVCAP_SURFACEFMT_BC4_UNORM:
1463	case SVGA3D_DEVCAP_SURFACEFMT_BC5_UNORM:
1464	Log(("CAPS: Unknown CAP %s\n", vmsvga3dGetCapString(idx3dCaps)));
1465	rc = VERR_INVALID_PARAMETER;
1466	*pu32Val = 0;
1467	break;
1468
1469	default:
1470	Log(("CAPS: Unexpected CAP %d\n", idx3dCaps));
1471	rc = VERR_INVALID_PARAMETER;
1472	break;
1473	}
1474
1475	Log(("CAPS: %s - %x\n", vmsvga3dGetCapString(idx3dCaps), *pu32Val));
1476	return rc;
1477	}
1478
1479	/**
1480	* Convert SVGA format value to its OpenGL equivalent
1481	*
1482	* @remarks Clues to be had in format_texture_info table (wined3d/utils.c) with
1483	* help from wined3dformat_from_d3dformat().
1484	*/
1485	void vmsvga3dSurfaceFormat2OGL(PVMSVGA3DSURFACE pSurface, SVGA3dSurfaceFormat format)
1486	{
1487	switch (format)
1488	{
1489	case SVGA3D_X8R8G8B8: /* D3DFMT_X8R8G8B8 - WINED3DFMT_B8G8R8X8_UNORM */
1490	pSurface->internalFormatGL = GL_RGB8;
1491	pSurface->formatGL = GL_BGRA;
1492	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1493	break;
1494	case SVGA3D_A8R8G8B8: /* D3DFMT_A8R8G8B8 - WINED3DFMT_B8G8R8A8_UNORM */
1495	pSurface->internalFormatGL = GL_RGBA8;
1496	pSurface->formatGL = GL_BGRA;
1497	pSurface->typeGL = GL_UNSIGNED_INT_8_8_8_8_REV;
1498	break;
1499	case SVGA3D_R5G6B5: /* D3DFMT_R5G6B5 - WINED3DFMT_B5G6R5_UNORM */
1500	pSurface->internalFormatGL = GL_RGB5;
1501	pSurface->formatGL = GL_RGB;
1502	pSurface->typeGL = GL_UNSIGNED_SHORT_5_6_5;
1503	AssertMsgFailed(("Test me - SVGA3D_R5G6B5\n"));
1504	break;
1505	case SVGA3D_X1R5G5B5: /* D3DFMT_X1R5G5B5 - WINED3DFMT_B5G5R5X1_UNORM */
1506	pSurface->internalFormatGL = GL_RGB5;
1507	pSurface->formatGL = GL_BGRA;
1508	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1509	AssertMsgFailed(("Test me - SVGA3D_X1R5G5B5\n"));
1510	break;
1511	case SVGA3D_A1R5G5B5: /* D3DFMT_A1R5G5B5 - WINED3DFMT_B5G5R5A1_UNORM */
1512	pSurface->internalFormatGL = GL_RGB5_A1;
1513	pSurface->formatGL = GL_BGRA;
1514	pSurface->typeGL = GL_UNSIGNED_SHORT_1_5_5_5_REV;
1515	AssertMsgFailed(("Test me - SVGA3D_A1R5G5B5\n"));
1516	break;
1517	case SVGA3D_A4R4G4B4: /* D3DFMT_A4R4G4B4 - WINED3DFMT_B4G4R4A4_UNORM */
1518	pSurface->internalFormatGL = GL_RGBA4;
1519	pSurface->formatGL = GL_BGRA;
1520	pSurface->typeGL = GL_UNSIGNED_SHORT_4_4_4_4_REV;
1521	AssertMsgFailed(("Test me - SVGA3D_A4R4G4B4\n"));
1522	break;
1523
1524	case SVGA3D_Z_D32: /* D3DFMT_D32 - WINED3DFMT_D32_UNORM */
1525	pSurface->internalFormatGL = GL_DEPTH_COMPONENT32;
1526	pSurface->formatGL = GL_DEPTH_COMPONENT;
1527	pSurface->typeGL = GL_UNSIGNED_INT;
1528	break;
1529	case SVGA3D_Z_D16: /* D3DFMT_D16 - WINED3DFMT_D16_UNORM */
1530	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /** @todo Wine suggests GL_DEPTH_COMPONENT24. */
1531	pSurface->formatGL = GL_DEPTH_COMPONENT;
1532	pSurface->typeGL = GL_UNSIGNED_SHORT;
1533	//AssertMsgFailed(("Test me - SVGA3D_Z_D16\n"));
1534	break;
1535	case SVGA3D_Z_D24S8: /* D3DFMT_D24S8 - WINED3DFMT_D24_UNORM_S8_UINT */
1536	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1537	pSurface->formatGL = GL_DEPTH_STENCIL;
1538	pSurface->typeGL = GL_UNSIGNED_INT;
1539	break;
1540	case SVGA3D_Z_D15S1: /* D3DFMT_D15S1 - WINED3DFMT_S1_UINT_D15_UNORM */
1541	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16; /* @todo ??? */
1542	pSurface->formatGL = GL_DEPTH_STENCIL;
1543	pSurface->typeGL = GL_UNSIGNED_SHORT;
1544	/** @todo Wine sources hints at no hw support for this, so test this one! */
1545	AssertMsgFailed(("Test me - SVGA3D_Z_D15S1\n"));
1546	break;
1547	case SVGA3D_Z_D24X8: /* D3DFMT_D24X8 - WINED3DFMT_X8D24_UNORM */
1548	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1549	pSurface->formatGL = GL_DEPTH_COMPONENT;
1550	pSurface->typeGL = GL_UNSIGNED_INT;
1551	break;
1552
1553	/* Advanced D3D9 depth formats. */
1554	case SVGA3D_Z_DF16: /* D3DFMT_DF16? - not supported */
1555	pSurface->internalFormatGL = GL_DEPTH_COMPONENT16;
1556	pSurface->formatGL = GL_DEPTH_COMPONENT;
1557	pSurface->typeGL = GL_FLOAT;
1558	break;
1559
1560	case SVGA3D_Z_DF24: /* D3DFMT_DF24? - not supported */
1561	pSurface->internalFormatGL = GL_DEPTH_COMPONENT24;
1562	pSurface->formatGL = GL_DEPTH_COMPONENT;
1563	pSurface->typeGL = GL_FLOAT; /* ??? */
1564	break;
1565
1566	case SVGA3D_Z_D24S8_INT: /* D3DFMT_??? - not supported */
1567	pSurface->internalFormatGL = GL_DEPTH24_STENCIL8;
1568	pSurface->formatGL = GL_DEPTH_STENCIL;
1569	pSurface->typeGL = GL_INT; /* ??? */
1570	break;
1571
1572	case SVGA3D_DXT1: /* D3DFMT_DXT1 - WINED3DFMT_DXT1 */
1573	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
1574	#if 0
1575	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1576	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1577	#else /* wine suggests: */
1578	pSurface->formatGL = GL_RGBA;
1579	pSurface->typeGL = GL_UNSIGNED_BYTE;
1580	AssertMsgFailed(("Test me - SVGA3D_DXT1\n"));
1581	#endif
1582	break;
1583
1584	case SVGA3D_DXT3: /* D3DFMT_DXT3 - WINED3DFMT_DXT3 */
1585	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
1586	#if 0 /** @todo this needs testing... */
1587	pSurface->formatGL = GL_RGBA_S3TC; /* ??? */
1588	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1589	#else /* wine suggests: */
1590	pSurface->formatGL = GL_RGBA;
1591	pSurface->typeGL = GL_UNSIGNED_BYTE;
1592	AssertMsgFailed(("Test me - SVGA3D_DXT3\n"));
1593	#endif
1594	break;
1595
1596	case SVGA3D_DXT5: /* D3DFMT_DXT5 - WINED3DFMT_DXT5 */
1597	pSurface->internalFormatGL = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
1598	#if 0 /** @todo this needs testing... */
1599	pSurface->formatGL = GL_RGBA_S3TC;
1600	pSurface->typeGL = GL_UNSIGNED_INT;
1601	#else /* wine suggests: */
1602	pSurface->formatGL = GL_RGBA;
1603	pSurface->typeGL = GL_UNSIGNED_BYTE;
1604	AssertMsgFailed(("Test me - SVGA3D_DXT5\n"));
1605	#endif
1606	break;
1607
1608	case SVGA3D_LUMINANCE8: /* D3DFMT_? - ? */
1609	pSurface->internalFormatGL = GL_LUMINANCE8_EXT;
1610	pSurface->formatGL = GL_LUMINANCE;
1611	pSurface->typeGL = GL_UNSIGNED_BYTE;
1612	break;
1613
1614	case SVGA3D_LUMINANCE16: /* D3DFMT_? - ? */
1615	pSurface->internalFormatGL = GL_LUMINANCE16_EXT;
1616	pSurface->formatGL = GL_LUMINANCE;
1617	pSurface->typeGL = GL_UNSIGNED_SHORT;
1618	break;
1619
1620	case SVGA3D_LUMINANCE4_ALPHA4: /* D3DFMT_? - ? */
1621	pSurface->internalFormatGL = GL_LUMINANCE4_ALPHA4_EXT;
1622	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1623	pSurface->typeGL = GL_UNSIGNED_BYTE;
1624	break;
1625
1626	case SVGA3D_LUMINANCE8_ALPHA8: /* D3DFMT_? - ? */
1627	pSurface->internalFormatGL = GL_LUMINANCE8_ALPHA8_EXT;
1628	pSurface->formatGL = GL_LUMINANCE_ALPHA;
1629	pSurface->typeGL = GL_UNSIGNED_BYTE; /* unsigned_short causes issues even though this type should be 16-bit */
1630	break;
1631
1632	case SVGA3D_ALPHA8: /* D3DFMT_A8? - WINED3DFMT_A8_UNORM? */
1633	pSurface->internalFormatGL = GL_ALPHA8_EXT;
1634	pSurface->formatGL = GL_ALPHA;
1635	pSurface->typeGL = GL_UNSIGNED_BYTE;
1636	break;
1637
1638	#if 0
1639
1640	/* Bump-map formats */
1641	case SVGA3D_BUMPU8V8:
1642	return D3DFMT_V8U8;
1643	case SVGA3D_BUMPL6V5U5:
1644	return D3DFMT_L6V5U5;
1645	case SVGA3D_BUMPX8L8V8U8:
1646	return D3DFMT_X8L8V8U8;
1647	case SVGA3D_BUMPL8V8U8:
1648	/* No corresponding D3D9 equivalent. */
1649	AssertFailedReturn(D3DFMT_UNKNOWN);
1650	/* signed bump-map formats */
1651	case SVGA3D_V8U8:
1652	return D3DFMT_V8U8;
1653	case SVGA3D_Q8W8V8U8:
1654	return D3DFMT_Q8W8V8U8;
1655	case SVGA3D_CxV8U8:
1656	return D3DFMT_CxV8U8;
1657	/* mixed bump-map formats */
1658	case SVGA3D_X8L8V8U8:
1659	return D3DFMT_X8L8V8U8;
1660	case SVGA3D_A2W10V10U10:
1661	return D3DFMT_A2W10V10U10;
1662	#endif
1663
1664	case SVGA3D_ARGB_S10E5: /* 16-bit floating-point ARGB / / D3DFMT_A16B16G16R16F - WINED3DFMT_R16G16B16A16_FLOAT */
1665	pSurface->internalFormatGL = GL_RGBA16F;
1666	pSurface->formatGL = GL_RGBA;
1667	#if 0 /* bird: wine uses half float, sounds correct to me... */
1668	pSurface->typeGL = GL_FLOAT;
1669	#else
1670	pSurface->typeGL = GL_HALF_FLOAT;
1671	AssertMsgFailed(("Test me - SVGA3D_ARGB_S10E5\n"));
1672	#endif
1673	break;
1674
1675	case SVGA3D_ARGB_S23E8: /* 32-bit floating-point ARGB / / D3DFMT_A32B32G32R32F - WINED3DFMT_R32G32B32A32_FLOAT */
1676	pSurface->internalFormatGL = GL_RGBA32F;
1677	pSurface->formatGL = GL_RGBA;
1678	pSurface->typeGL = GL_FLOAT; /* ?? - same as wine, so probably correct */
1679	break;
1680
1681	case SVGA3D_A2R10G10B10: /* D3DFMT_A2R10G10B10 - WINED3DFMT_B10G10R10A2_UNORM */
1682	pSurface->internalFormatGL = GL_RGB10_A2; /* ?? - same as wine, so probably correct */
1683	#if 0 /* bird: Wine uses GL_BGRA instead of GL_RGBA. */
1684	pSurface->formatGL = GL_RGBA;
1685	#else
1686	pSurface->formatGL = GL_BGRA;
1687	#endif
1688	pSurface->typeGL = GL_UNSIGNED_INT;
1689	AssertMsgFailed(("Test me - SVGA3D_A2R10G10B10\n"));
1690	break;
1691
1692
1693	/* Single- and dual-component floating point formats */
1694	case SVGA3D_R_S10E5: /* D3DFMT_R16F - WINED3DFMT_R16_FLOAT */
1695	pSurface->internalFormatGL = GL_R16F;
1696	pSurface->formatGL = GL_RED;
1697	#if 0 /* bird: wine uses half float, sounds correct to me... */
1698	pSurface->typeGL = GL_FLOAT;
1699	#else
1700	pSurface->typeGL = GL_HALF_FLOAT;
1701	AssertMsgFailed(("Test me - SVGA3D_R_S10E5\n"));
1702	#endif
1703	break;
1704	case SVGA3D_R_S23E8: /* D3DFMT_R32F - WINED3DFMT_R32_FLOAT */
1705	pSurface->internalFormatGL = GL_R32F;
1706	pSurface->formatGL = GL_RG;
1707	pSurface->typeGL = GL_FLOAT;
1708	break;
1709	case SVGA3D_RG_S10E5: /* D3DFMT_G16R16F - WINED3DFMT_R16G16_FLOAT */
1710	pSurface->internalFormatGL = GL_RG16F;
1711	pSurface->formatGL = GL_RG;
1712	#if 0 /* bird: wine uses half float, sounds correct to me... */
1713	pSurface->typeGL = GL_FLOAT;
1714	#else
1715	pSurface->typeGL = GL_HALF_FLOAT;
1716	AssertMsgFailed(("Test me - SVGA3D_RG_S10E5\n"));
1717	#endif
1718	break;
1719	case SVGA3D_RG_S23E8: /* D3DFMT_G32R32F - WINED3DFMT_R32G32_FLOAT */
1720	pSurface->internalFormatGL = GL_RG32F;
1721	pSurface->formatGL = GL_RG;
1722	pSurface->typeGL = GL_FLOAT;
1723	break;
1724
1725	/*
1726	* Any surface can be used as a buffer object, but SVGA3D_BUFFER is
1727	* the most efficient format to use when creating new surfaces
1728	* expressly for index or vertex data.
1729	*/
1730	case SVGA3D_BUFFER:
1731	pSurface->internalFormatGL = -1;
1732	pSurface->formatGL = -1;
1733	pSurface->typeGL = -1;
1734	break;
1735
1736	#if 0
1737	return D3DFMT_UNKNOWN;
1738
1739	case SVGA3D_V16U16:
1740	return D3DFMT_V16U16;
1741	#endif
1742
1743	case SVGA3D_G16R16: /* D3DFMT_G16R16 - WINED3DFMT_R16G16_UNORM */
1744	pSurface->internalFormatGL = GL_RG16;
1745	pSurface->formatGL = GL_RG;
1746	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1747	pSurface->typeGL = GL_UNSIGNED_INT;
1748	#else
1749	pSurface->typeGL = GL_UNSIGNED_SHORT;
1750	AssertMsgFailed(("test me - SVGA3D_G16R16\n"));
1751	#endif
1752	break;
1753
1754	case SVGA3D_A16B16G16R16: /* D3DFMT_A16B16G16R16 - WINED3DFMT_R16G16B16A16_UNORM */
1755	pSurface->internalFormatGL = GL_RGBA16;
1756	pSurface->formatGL = GL_RGBA;
1757	#if 0 /* bird: Wine uses GL_UNSIGNED_SHORT here. */
1758	pSurface->typeGL = GL_UNSIGNED_INT; /* ??? */
1759	#else
1760	pSurface->typeGL = GL_UNSIGNED_SHORT;
1761	AssertMsgFailed(("Test me - SVGA3D_A16B16G16R16\n"));
1762	#endif
1763	break;
1764
1765	#if 0
1766	/* Packed Video formats */
1767	case SVGA3D_UYVY:
1768	return D3DFMT_UYVY;
1769	case SVGA3D_YUY2:
1770	return D3DFMT_YUY2;
1771
1772	/* Planar video formats */
1773	case SVGA3D_NV12:
1774	return (D3DFORMAT)MAKEFOURCC('N', 'V', '1', '2');
1775
1776	/* Video format with alpha */
1777	case SVGA3D_AYUV:
1778	return (D3DFORMAT)MAKEFOURCC('A', 'Y', 'U', 'V');
1779
1780	case SVGA3D_BC4_UNORM:
1781	case SVGA3D_BC5_UNORM:
1782	/* Unknown; only in DX10 & 11 */
1783	break;
1784	#endif
1785	default:
1786	AssertMsgFailed(("Unsupported format %d\n", format));
1787	break;
1788	}
1789	}
1790
1791
1792	#if 0
1793	/**
1794	* Convert SVGA multi sample count value to its D3D equivalent
1795	*/
1796	D3DMULTISAMPLE_TYPE vmsvga3dMultipeSampleCount2D3D(uint32_t multisampleCount)
1797	{
1798	AssertCompile(D3DMULTISAMPLE_2_SAMPLES == 2);
1799	AssertCompile(D3DMULTISAMPLE_16_SAMPLES == 16);
1800
1801	if (multisampleCount > 16)
1802	return D3DMULTISAMPLE_NONE;
1803
1804	/** @todo exact same mapping as d3d? */
1805	return (D3DMULTISAMPLE_TYPE)multisampleCount;
1806	}
1807	#endif
1808
1809	/**
1810	* Destroy backend specific surface bits (part of SVGA_3D_CMD_SURFACE_DESTROY).
1811	*
1812	* @param pState The VMSVGA3d state.
1813	* @param pSurface The surface being destroyed.
1814	*/
1815	void vmsvga3dBackSurfaceDestroy(PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface)
1816	{
1817	PVMSVGA3DCONTEXT pContext = &pState->SharedCtx;
1818	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
1819
1820	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
1821	{
1822	case SVGA3D_SURFACE_CUBEMAP:
1823	AssertFailed(); /** @todo destroy SVGA3D_SURFACE_CUBEMAP */
1824	break;
1825
1826	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
1827	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
1828	if (pSurface->oglId.buffer != OPENGL_INVALID_ID)
1829	{
1830	pState->ext.glDeleteBuffers(1, &pSurface->oglId.buffer);
1831	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1832	}
1833	break;
1834
1835	case SVGA3D_SURFACE_HINT_TEXTURE:
1836	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
1837	if (pSurface->oglId.texture != OPENGL_INVALID_ID)
1838	{
1839	glDeleteTextures(1, &pSurface->oglId.texture);
1840	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1841	}
1842	break;
1843
1844	case SVGA3D_SURFACE_HINT_RENDERTARGET:
1845	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
1846	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL \| SVGA3D_SURFACE_HINT_TEXTURE: /** @todo actual texture surface not supported */
1847	if (pSurface->oglId.renderbuffer != OPENGL_INVALID_ID)
1848	{
1849	pState->ext.glDeleteRenderbuffers(1, &pSurface->oglId.renderbuffer);
1850	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
1851	}
1852	break;
1853
1854	default:
1855	AssertMsg(!VMSVGA3DSURFACE_HAS_HW_SURFACE(pSurface), ("type=%x\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)));
1856	break;
1857	}
1858	}
1859
1860
1861	int vmsvga3dSurfaceCopy(PVGASTATE pThis, SVGA3dSurfaceImageId dest, SVGA3dSurfaceImageId src, uint32_t cCopyBoxes, SVGA3dCopyBox *pBox)
1862	{
1863	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
1864	uint32_t sidSrc = src.sid;
1865	uint32_t sidDest = dest.sid;
1866	int rc = VINF_SUCCESS;
1867
1868	AssertReturn(pState, VERR_NO_MEMORY);
1869	Assert(sidSrc < SVGA3D_MAX_SURFACE_IDS);
1870	AssertReturn(sidSrc < pState->cSurfaces && pState->papSurfaces[sidSrc]->id == sidSrc, VERR_INVALID_PARAMETER);
1871	Assert(sidDest < SVGA3D_MAX_SURFACE_IDS);
1872	AssertReturn(sidDest < pState->cSurfaces && pState->papSurfaces[sidDest]->id == sidDest, VERR_INVALID_PARAMETER);
1873
1874	for (uint32_t i = 0; i < cCopyBoxes; i++)
1875	{
1876	SVGA3dBox destBox, srcBox;
1877
1878	srcBox.x = pBox[i].srcx;
1879	srcBox.y = pBox[i].srcy;
1880	srcBox.z = pBox[i].srcz;
1881	srcBox.w = pBox[i].w;
1882	srcBox.h = pBox[i].h;
1883	srcBox.d = pBox[i].z; /* XXX what about pBox[i].d? */
1884
1885	destBox.x = pBox[i].x;
1886	destBox.y = pBox[i].y;
1887	destBox.z = pBox[i].z;
1888	destBox.w = pBox[i].w;
1889	destBox.h = pBox[i].h;
1890	destBox.z = pBox[i].z; /* XXX initializing destBox.z again? What about pBox[i].d and destBox.d? */
1891
1892	rc = vmsvga3dSurfaceStretchBlt(pThis, &dest, &destBox, &src, &srcBox, SVGA3D_STRETCH_BLT_LINEAR);
1893	AssertRCReturn(rc, rc);
1894	}
1895	return VINF_SUCCESS;
1896	}
1897
1898
1899	/**
1900	* Save texture unpacking parameters and loads those appropriate for the given
1901	* surface.
1902	*
1903	* @param pState The VMSVGA3D state structure.
1904	* @param pContext The active context.
1905	* @param pSurface The surface.
1906	* @param pSave Where to save stuff.
1907	*/
1908	void vmsvga3dOglSetUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1909	PVMSVGAPACKPARAMS pSave)
1910	{
1911	/*
1912	* Save (ignore errors, setting the defaults we want and avoids restore).
1913	*/
1914	pSave->iAlignment = 1;
1915	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
1916	pSave->cxRow = 0;
1917	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
1918
1919	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1920	pSave->cyImage = 0;
1921	glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &pSave->cyImage);
1922	Assert(pSave->cyImage == 0);
1923
1924	pSave->fSwapBytes = GL_FALSE;
1925	glGetBooleanv(GL_UNPACK_SWAP_BYTES, &pSave->fSwapBytes);
1926	Assert(pSave->fSwapBytes == GL_FALSE);
1927
1928	pSave->fLsbFirst = GL_FALSE;
1929	glGetBooleanv(GL_UNPACK_LSB_FIRST, &pSave->fLsbFirst);
1930	Assert(pSave->fLsbFirst == GL_FALSE);
1931
1932	pSave->cSkipRows = 0;
1933	glGetIntegerv(GL_UNPACK_SKIP_ROWS, &pSave->cSkipRows);
1934	Assert(pSave->cSkipRows == 0);
1935
1936	pSave->cSkipPixels = 0;
1937	glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &pSave->cSkipPixels);
1938	Assert(pSave->cSkipPixels == 0);
1939
1940	pSave->cSkipImages = 0;
1941	glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &pSave->cSkipImages);
1942	Assert(pSave->cSkipImages == 0);
1943
1944	VMSVGA3D_CLEAR_GL_ERRORS();
1945	#endif
1946
1947	/*
1948	* Setup unpack.
1949	*
1950	* Note! We use 1 as alignment here because we currently don't do any
1951	* aligning of line pitches anywhere.
1952	*/
1953	NOREF(pSurface);
1954	if (pSave->iAlignment != 1)
1955	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1), pState, pContext);
1956	if (pSave->cxRow != 0)
1957	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0), pState, pContext);
1958	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1959	if (pSave->cyImage != 0)
1960	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0), pState, pContext);
1961	if (pSave->fSwapBytes != 0)
1962	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE), pState, pContext);
1963	if (pSave->fLsbFirst != 0)
1964	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE), pState, pContext);
1965	if (pSave->cSkipRows != 0)
1966	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, 0), pState, pContext);
1967	if (pSave->cSkipPixels != 0)
1968	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0), pState, pContext);
1969	if (pSave->cSkipImages != 0)
1970	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0), pState, pContext);
1971	#endif
1972	}
1973
1974
1975	/**
1976	* Restores texture unpacking parameters.
1977	*
1978	* @param pState The VMSVGA3D state structure.
1979	* @param pContext The active context.
1980	* @param pSurface The surface.
1981	* @param pSave Where stuff was saved.
1982	*/
1983	void vmsvga3dOglRestoreUnpackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
1984	PCVMSVGAPACKPARAMS pSave)
1985	{
1986	NOREF(pSurface);
1987	if (pSave->iAlignment != 1)
1988	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
1989	if (pSave->cxRow != 0)
1990	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
1991	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
1992	if (pSave->cyImage != 0)
1993	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
1994	if (pSave->fSwapBytes != 0)
1995	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
1996	if (pSave->fLsbFirst != 0)
1997	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
1998	if (pSave->cSkipRows != 0)
1999	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2000	if (pSave->cSkipPixels != 0)
2001	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2002	if (pSave->cSkipImages != 0)
2003	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_UNPACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2004	#endif
2005	}
2006
2007
2008	/**
2009	* Create D3D/OpenGL texture object for the specified surface.
2010	*
2011	* Surfaces are created when needed.
2012	*
2013	* @param pState The VMSVGA3d state.
2014	* @param pContext The context.
2015	* @param idAssociatedContext Probably the same as pContext->id.
2016	* @param pSurface The surface to create the texture for.
2017	*/
2018	int vmsvga3dBackCreateTexture(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t idAssociatedContext,
2019	PVMSVGA3DSURFACE pSurface)
2020	{
2021	GLint activeTexture = 0;
2022	uint32_t idPrevCtx = pState->idActiveContext;
2023	pContext = &pState->SharedCtx;
2024	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2025
2026	glGenTextures(1, &pSurface->oglId.texture);
2027	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2028	/** @todo Set the mip map generation filter settings. */
2029
2030	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2031	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2032
2033	/* Must bind texture to the current context in order to change it. */
2034	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2035	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2036
2037	/* Set the unpacking parameters. */
2038	VMSVGAPACKPARAMS SavedParams;
2039	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams);
2040
2041	/* Set the mipmap base and max level paramters. */
2042	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
2043	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2044	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, pSurface->faces[0].numMipLevels);
2045	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2046
2047	if (pSurface->fDirty)
2048	Log(("vmsvga3dBackCreateTexture: sync dirty texture\n"));
2049
2050	/* Always allocate and initialize all mipmap levels; non-initialized mipmap levels used as render targets cause failures. */
2051	for (uint32_t i = 0; i < pSurface->faces[0].numMipLevels; i++)
2052	{
2053	/* Allocate and initialize texture memory. Passing the zero filled pSurfaceData avoids
2054	exposing random host memory to the guest and helps a with the fedora 21 surface
2055	corruption issues (launchpad, background, search field, login). */
2056	if (pSurface->pMipmapLevels[i].fDirty)
2057	Log(("vmsvga3dBackCreateTexture: sync dirty texture mipmap level %d (pitch %x)\n", i, pSurface->pMipmapLevels[i].cbSurfacePitch));
2058
2059	glTexImage2D(GL_TEXTURE_2D,
2060	i,
2061	pSurface->internalFormatGL,
2062	pSurface->pMipmapLevels[i].size.width,
2063	pSurface->pMipmapLevels[i].size.height,
2064	0,
2065	pSurface->formatGL,
2066	pSurface->typeGL,
2067	pSurface->pMipmapLevels[i].pSurfaceData);
2068
2069	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2070
2071	pSurface->pMipmapLevels[i].fDirty = false;
2072	}
2073	pSurface->fDirty = false;
2074
2075	/* Restore unpacking parameters. */
2076	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2077
2078	/* Restore the old active texture. */
2079	glBindTexture(GL_TEXTURE_2D, activeTexture);
2080	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2081
2082	pSurface->flags \|= SVGA3D_SURFACE_HINT_TEXTURE;
2083
2084	if (idPrevCtx < pState->cContexts && pState->papContexts[idPrevCtx]->id == idPrevCtx)
2085	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pState->papContexts[idPrevCtx]);
2086	return VINF_SUCCESS;
2087	}
2088
2089
2090	/**
2091	* Backend worker for implementing SVGA_3D_CMD_SURFACE_STRETCHBLT.
2092	*
2093	* @returns VBox status code.
2094	* @param pThis The VGA device instance.
2095	* @param pState The VMSVGA3d state.
2096	* @param pDstSurface The destination host surface.
2097	* @param uDstMipmap The destination mipmap level (valid).
2098	* @param pDstBox The destination box.
2099	* @param pSrcSurface The source host surface.
2100	* @param uSrcMipmap The source mimap level (valid).
2101	* @param pSrcBox The source box.
2102	* @param enmMode The strecht blt mode .
2103	* @param pContext The VMSVGA3d context (already current for OGL).
2104	*/
2105	int vmsvga3dBackSurfaceStretchBlt(PVGASTATE pThis, PVMSVGA3DSTATE pState,
2106	PVMSVGA3DSURFACE pDstSurface, uint32_t uDstMipmap, SVGA3dBox const *pDstBox,
2107	PVMSVGA3DSURFACE pSrcSurface, uint32_t uSrcMipmap, SVGA3dBox const *pSrcBox,
2108	SVGA3dStretchBltMode enmMode, PVMSVGA3DCONTEXT pContext)
2109	{
2110	/* Activate the read and draw framebuffer objects. */
2111	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2112	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2113	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, pContext->idDrawFramebuffer);
2114	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2115
2116	/* Bind the source and destination objects to the right place. */
2117	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2118	pSrcSurface->oglId.texture, uSrcMipmap);
2119	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2120	pState->ext.glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
2121	pDstSurface->oglId.texture, uDstMipmap);
2122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2123
2124	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),
2125	pSrcBox->x + pSrcBox->w, D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), pDstBox->x, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h),
2126	pDstBox->x + pDstBox->w, D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y)));
2127
2128	pState->ext.glBlitFramebuffer(pSrcBox->x,
2129	#ifdef MANUAL_FLIP_SURFACE_DATA
2130	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y + pSrcBox->h), /* inclusive */
2131	#else
2132	pSrcBox->y,
2133	#endif
2134	pSrcBox->x + pSrcBox->w, /* exclusive. */
2135	#ifdef MANUAL_FLIP_SURFACE_DATA
2136	D3D_TO_OGL_Y_COORD(pSrcSurface, pSrcBox->y), /* exclusive */
2137	#else
2138	pSrcBox->y + pSrcBox->h,
2139	#endif
2140	pDstBox->x,
2141	#ifdef MANUAL_FLIP_SURFACE_DATA
2142	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y + pDstBox->h), /* inclusive. */
2143	#else
2144	pDstBox->y,
2145	#endif
2146	pDstBox->x + pDstBox->w, /* exclusive. */
2147	#ifdef MANUAL_FLIP_SURFACE_DATA
2148	D3D_TO_OGL_Y_COORD(pDstSurface, pDstBox->y), /* exclusive */
2149	#else
2150	pDstBox->y + pDstBox->h,
2151	#endif
2152	GL_COLOR_BUFFER_BIT,
2153	(enmMode == SVGA3D_STRETCH_BLT_POINT) ? GL_NEAREST : GL_LINEAR);
2154	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2155
2156	/* Reset the frame buffer association */
2157	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
2158	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2159
2160	return VINF_SUCCESS;
2161	}
2162
2163	/**
2164	* Save texture packing parameters and loads those appropriate for the given
2165	* surface.
2166	*
2167	* @param pState The VMSVGA3D state structure.
2168	* @param pContext The active context.
2169	* @param pSurface The surface.
2170	* @param pSave Where to save stuff.
2171	*/
2172	void vmsvga3dOglSetPackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2173	PVMSVGAPACKPARAMS pSave)
2174	{
2175	/*
2176	* Save (ignore errors, setting the defaults we want and avoids restore).
2177	*/
2178	pSave->iAlignment = 1;
2179	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ALIGNMENT, &pSave->iAlignment), pState, pContext);
2180	pSave->cxRow = 0;
2181	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_UNPACK_ROW_LENGTH, &pSave->cxRow), pState, pContext);
2182
2183	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2184	pSave->cyImage = 0;
2185	glGetIntegerv(GL_PACK_IMAGE_HEIGHT, &pSave->cyImage);
2186	Assert(pSave->cyImage == 0);
2187
2188	pSave->fSwapBytes = GL_FALSE;
2189	glGetBooleanv(GL_PACK_SWAP_BYTES, &pSave->fSwapBytes);
2190	Assert(pSave->fSwapBytes == GL_FALSE);
2191
2192	pSave->fLsbFirst = GL_FALSE;
2193	glGetBooleanv(GL_PACK_LSB_FIRST, &pSave->fLsbFirst);
2194	Assert(pSave->fLsbFirst == GL_FALSE);
2195
2196	pSave->cSkipRows = 0;
2197	glGetIntegerv(GL_PACK_SKIP_ROWS, &pSave->cSkipRows);
2198	Assert(pSave->cSkipRows == 0);
2199
2200	pSave->cSkipPixels = 0;
2201	glGetIntegerv(GL_PACK_SKIP_PIXELS, &pSave->cSkipPixels);
2202	Assert(pSave->cSkipPixels == 0);
2203
2204	pSave->cSkipImages = 0;
2205	glGetIntegerv(GL_PACK_SKIP_IMAGES, &pSave->cSkipImages);
2206	Assert(pSave->cSkipImages == 0);
2207
2208	VMSVGA3D_CLEAR_GL_ERRORS();
2209	#endif
2210
2211	/*
2212	* Setup unpack.
2213	*
2214	* Note! We use 1 as alignment here because we currently don't do any
2215	* aligning of line pitches anywhere.
2216	*/
2217	NOREF(pSurface);
2218	if (pSave->iAlignment != 1)
2219	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, 1), pState, pContext);
2220	if (pSave->cxRow != 0)
2221	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, 0), pState, pContext);
2222	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2223	if (pSave->cyImage != 0)
2224	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0), pState, pContext);
2225	if (pSave->fSwapBytes != 0)
2226	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, GL_FALSE), pState, pContext);
2227	if (pSave->fLsbFirst != 0)
2228	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, GL_FALSE), pState, pContext);
2229	if (pSave->cSkipRows != 0)
2230	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, 0), pState, pContext);
2231	if (pSave->cSkipPixels != 0)
2232	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, 0), pState, pContext);
2233	if (pSave->cSkipImages != 0)
2234	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, 0), pState, pContext);
2235	#endif
2236	}
2237
2238
2239	/**
2240	* Restores texture packing parameters.
2241	*
2242	* @param pState The VMSVGA3D state structure.
2243	* @param pContext The active context.
2244	* @param pSurface The surface.
2245	* @param pSave Where stuff was saved.
2246	*/
2247	void vmsvga3dOglRestorePackParams(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, PVMSVGA3DSURFACE pSurface,
2248	PCVMSVGAPACKPARAMS pSave)
2249	{
2250	NOREF(pSurface);
2251	if (pSave->iAlignment != 1)
2252	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ALIGNMENT, pSave->iAlignment), pState, pContext);
2253	if (pSave->cxRow != 0)
2254	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_ROW_LENGTH, pSave->cxRow), pState, pContext);
2255	#ifdef VMSVGA3D_PARANOID_TEXTURE_PACKING
2256	if (pSave->cyImage != 0)
2257	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_IMAGE_HEIGHT, pSave->cyImage), pState, pContext);
2258	if (pSave->fSwapBytes != 0)
2259	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SWAP_BYTES, pSave->fSwapBytes), pState, pContext);
2260	if (pSave->fLsbFirst != 0)
2261	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_LSB_FIRST, pSave->fLsbFirst), pState, pContext);
2262	if (pSave->cSkipRows != 0)
2263	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_ROWS, pSave->cSkipRows), pState, pContext);
2264	if (pSave->cSkipPixels != 0)
2265	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_PIXELS, pSave->cSkipPixels), pState, pContext);
2266	if (pSave->cSkipImages != 0)
2267	VMSVGA3D_ASSERT_GL_CALL(glPixelStorei(GL_PACK_SKIP_IMAGES, pSave->cSkipImages), pState, pContext);
2268	#endif
2269	}
2270
2271
2272	/**
2273	* Backend worker for implementing SVGA_3D_CMD_SURFACE_DMA that copies one box.
2274	*
2275	* @returns Failure status code or @a rc.
2276	* @param pThis The VGA device instance data.
2277	* @param pState The VMSVGA3d state.
2278	* @param pSurface The host surface.
2279	* @param uHostMipmap The host mipmap level (valid).
2280	* @param GuestPtr The guest pointer.
2281	* @param cbSrcPitch The guest (?) pitch.
2282	* @param transfer The transfer direction.
2283	* @param pBox The box to copy.
2284	* @param pContext The context (for OpenGL).
2285	* @param rc The current rc for all boxes.
2286	* @param iBox The current box number (for Direct 3D).
2287	*/
2288	int vmsvga3dBackSurfaceDMACopyBox(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DSURFACE pSurface, uint32_t uHostMipmap,
2289	SVGAGuestPtr GuestPtr, uint32_t cbSrcPitch, SVGA3dTransferType transfer,
2290	SVGA3dCopyBox const *pBox, PVMSVGA3DCONTEXT pContext, int rc, int iBox)
2291	{
2292	PVMSVGA3DMIPMAPLEVEL pMipLevel = &pSurface->pMipmapLevels[uHostMipmap];
2293
2294	switch (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK)
2295	{
2296	case SVGA3D_SURFACE_HINT_TEXTURE \| SVGA3D_SURFACE_HINT_RENDERTARGET:
2297	case SVGA3D_SURFACE_HINT_TEXTURE:
2298	case SVGA3D_SURFACE_HINT_RENDERTARGET:
2299	{
2300	uint32_t cbSurfacePitch;
2301	uint8_t pDoubleBuffer, pBufferStart;
2302	unsigned uDestOffset = 0;
2303
2304	pDoubleBuffer = (uint8_t *)RTMemAlloc(pMipLevel->cbSurface);
2305	AssertReturn(pDoubleBuffer, VERR_NO_MEMORY);
2306
2307	if (transfer == SVGA3D_READ_HOST_VRAM)
2308	{
2309	GLint activeTexture;
2310
2311	/* Must bind texture to the current context in order to read it. */
2312	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2313	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2314
2315	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2316	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2317
2318	/* Set row length and alignment of the input data. */
2319	VMSVGAPACKPARAMS SavedParams;
2320	vmsvga3dOglSetPackParams(pState, pContext, pSurface, &SavedParams);
2321
2322	glGetTexImage(GL_TEXTURE_2D,
2323	uHostMipmap,
2324	pSurface->formatGL,
2325	pSurface->typeGL,
2326	pDoubleBuffer);
2327	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2328
2329	vmsvga3dOglRestorePackParams(pState, pContext, pSurface, &SavedParams);
2330
2331	/* Restore the old active texture. */
2332	glBindTexture(GL_TEXTURE_2D, activeTexture);
2333	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2334
2335	uDestOffset = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2336	AssertReturnStmt( uDestOffset + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2337	<= pMipLevel->cbSurface,
2338	RTMemFree(pDoubleBuffer),
2339	VERR_INTERNAL_ERROR);
2340
2341	cbSurfacePitch = pMipLevel->cbSurfacePitch;
2342
2343	#ifdef MANUAL_FLIP_SURFACE_DATA
2344	pBufferStart = pDoubleBuffer
2345	+ pBox->x * pSurface->cbBlock
2346	+ pMipLevel->cbSurface - pBox->y * cbSurfacePitch
2347	- cbSurfacePitch; /* flip image during copy */
2348	#else
2349	pBufferStart = pDoubleBuffer + uDestOffset;
2350	#endif
2351	}
2352	else
2353	{
2354	cbSurfacePitch = pBox->w * pSurface->cbBlock;
2355	#ifdef MANUAL_FLIP_SURFACE_DATA
2356	pBufferStart = pDoubleBuffer + cbSurfacePitch * pBox->h - cbSurfacePitch; /* flip image during copy */
2357	#else
2358	pBufferStart = pDoubleBuffer;
2359	#endif
2360	}
2361
2362	rc = vmsvgaGMRTransfer(pThis,
2363	transfer,
2364	pBufferStart,
2365	#ifdef MANUAL_FLIP_SURFACE_DATA
2366	-(int32_t)cbSurfacePitch,
2367	#else
2368	(int32_t)cbSurfacePitch,
2369	#endif
2370	GuestPtr,
2371	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2372	cbSrcPitch,
2373	pBox->w * pSurface->cbBlock,
2374	pBox->h);
2375	AssertRC(rc);
2376
2377	/* Update the opengl surface data. */
2378	if (transfer == SVGA3D_WRITE_HOST_VRAM)
2379	{
2380	GLint activeTexture = 0;
2381
2382	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2383	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2384
2385	/* Must bind texture to the current context in order to change it. */
2386	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2387	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2388
2389	Log(("vmsvga3dSurfaceDMA: copy texture mipmap level %d (pitch %x)\n", uHostMipmap, pMipLevel->cbSurfacePitch));
2390
2391	/* Set row length and alignment of the input data. */
2392	VMSVGAPACKPARAMS SavedParams;
2393	vmsvga3dOglSetUnpackParams(pState, pContext, pSurface, &SavedParams); /** @todo do we need to set ROW_LENGTH to w here? */
2394
2395	glTexSubImage2D(GL_TEXTURE_2D,
2396	uHostMipmap,
2397	pBox->x,
2398	pBox->y,
2399	pBox->w,
2400	pBox->h,
2401	pSurface->formatGL,
2402	pSurface->typeGL,
2403	pDoubleBuffer);
2404
2405	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2406
2407	/* Restore old values. */
2408	vmsvga3dOglRestoreUnpackParams(pState, pContext, pSurface, &SavedParams);
2409
2410	/* Restore the old active texture. */
2411	glBindTexture(GL_TEXTURE_2D, activeTexture);
2412	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2413	}
2414
2415	Log4(("first line:\n%.Rhxd\n", pBox->w pSurface->cbBlock, pDoubleBuffer));
2416
2417	/* Free the double buffer. */
2418	RTMemFree(pDoubleBuffer);
2419	break;
2420	}
2421
2422	case SVGA3D_SURFACE_HINT_DEPTHSTENCIL:
2423	AssertFailed(); /** @todo DMA SVGA3D_SURFACE_HINT_DEPTHSTENCIL */
2424	break;
2425
2426	case SVGA3D_SURFACE_HINT_VERTEXBUFFER:
2427	case SVGA3D_SURFACE_HINT_INDEXBUFFER:
2428	{
2429	Assert(pBox->h == 1);
2430
2431	VMSVGA3D_CLEAR_GL_ERRORS();
2432	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pSurface->oglId.buffer);
2433	if (VMSVGA3D_GL_IS_SUCCESS(pContext))
2434	{
2435	GLenum enmGlTransfer = (transfer == SVGA3D_READ_HOST_VRAM) ? GL_READ_ONLY : GL_WRITE_ONLY;
2436	uint8_t pbData = (uint8_t )pState->ext.glMapBuffer(GL_ARRAY_BUFFER, enmGlTransfer);
2437	if (RT_LIKELY(pbData != NULL))
2438	{
2439	#if defined(VBOX_STRICT) && defined(RT_OS_DARWIN)
2440	GLint cbStrictBufSize;
2441	glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &cbStrictBufSize);
2442	Assert(VMSVGA3D_GL_IS_SUCCESS(pContext));
2443	AssertMsg(cbStrictBufSize >= (int32_t)pMipLevel->cbSurface,
2444	("cbStrictBufSize=%#x cbSurface=%#x pContext->id=%#x\n", (uint32_t)cbStrictBufSize, pMipLevel->cbSurface, pContext->id));
2445	#endif
2446
2447	unsigned offDst = pBox->x * pSurface->cbBlock + pBox->y * pMipLevel->cbSurfacePitch;
2448	if (RT_LIKELY( offDst + pBox->w * pSurface->cbBlock + (pBox->h - 1) * pMipLevel->cbSurfacePitch
2449	<= pMipLevel->cbSurface))
2450	{
2451	Log(("Lock %s memory for rectangle (%d,%d)(%d,%d)\n", (pSurface->flags & VMSVGA3D_SURFACE_HINT_SWITCH_MASK) == SVGA3D_SURFACE_HINT_VERTEXBUFFER ? "vertex" : "index",
2452	pBox->x, pBox->y, pBox->x + pBox->w, pBox->y + pBox->h));
2453
2454	rc = vmsvgaGMRTransfer(pThis,
2455	transfer,
2456	pbData + offDst,
2457	pMipLevel->cbSurfacePitch,
2458	GuestPtr,
2459	pBox->srcx * pSurface->cbBlock + pBox->srcy * cbSrcPitch,
2460	cbSrcPitch,
2461	pBox->w * pSurface->cbBlock,
2462	pBox->h);
2463	AssertRC(rc);
2464
2465	Log4(("first line:\n%.*Rhxd\n", cbSrcPitch, pbData));
2466	}
2467	else
2468	{
2469	AssertFailed();
2470	rc = VERR_INTERNAL_ERROR;
2471	}
2472
2473	pState->ext.glUnmapBuffer(GL_ARRAY_BUFFER);
2474	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2475	}
2476	else
2477	VMSVGA3D_GL_GET_AND_COMPLAIN(pState, pContext, ("glMapBuffer(GL_ARRAY_BUFFER, %#x) -> NULL\n", enmGlTransfer));
2478	}
2479	else
2480	VMSVGA3D_GL_COMPLAIN(pState, pContext, ("glBindBuffer(GL_ARRAY_BUFFER, %#x)\n", pSurface->oglId.buffer));
2481	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
2482	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2483	break;
2484	}
2485
2486	default:
2487	AssertFailed();
2488	break;
2489	}
2490
2491	return rc;
2492	}
2493
2494
2495	int vmsvga3dSurfaceBlitToScreen(PVGASTATE pThis, uint32_t dest, SVGASignedRect destRect, SVGA3dSurfaceImageId src, SVGASignedRect srcRect, uint32_t cRects, SVGASignedRect *pRect)
2496	{
2497	/* Requires SVGA_FIFO_CAP_SCREEN_OBJECT support */
2498	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));
2499	for (uint32_t i = 0; i < cRects; i++)
2500	{
2501	Log(("vmsvga3dSurfaceBlitToScreen: clipping rect %d (%d,%d)(%d,%d)\n", i, pRect[i].left, pRect[i].top, pRect[i].right, pRect[i].bottom));
2502	}
2503
2504	/** @todo Only screen 0 for now. */
2505	AssertReturn(dest == 0, VERR_INTERNAL_ERROR);
2506	AssertReturn(src.mipmap == 0 && src.face == 0, VERR_INVALID_PARAMETER);
2507	/** @todo scaling */
2508	AssertReturn(destRect.right - destRect.left == srcRect.right - srcRect.left && destRect.bottom - destRect.top == srcRect.bottom - srcRect.top, VERR_INVALID_PARAMETER);
2509
2510	if (cRects == 0)
2511	{
2512	/* easy case; no clipping */
2513	SVGA3dCopyBox box;
2514	SVGA3dGuestImage dst;
2515
2516	box.x = destRect.left;
2517	box.y = destRect.top;
2518	box.z = 0;
2519	box.w = destRect.right - destRect.left;
2520	box.h = destRect.bottom - destRect.top;
2521	box.d = 1;
2522	box.srcx = srcRect.left;
2523	box.srcy = srcRect.top;
2524	box.srcz = 0;
2525
2526	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2527	dst.ptr.offset = 0;
2528	dst.pitch = pThis->svga.cbScanline;
2529
2530	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2531	AssertRCReturn(rc, rc);
2532
2533	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2534	return VINF_SUCCESS;
2535	}
2536	else
2537	{
2538	SVGA3dGuestImage dst;
2539	SVGA3dCopyBox box;
2540
2541	box.srcz = 0;
2542	box.z = 0;
2543	box.d = 1;
2544
2545	dst.ptr.gmrId = SVGA_GMR_FRAMEBUFFER;
2546	dst.ptr.offset = 0;
2547	dst.pitch = pThis->svga.cbScanline;
2548
2549	/** @todo merge into one SurfaceDMA call */
2550	for (uint32_t i = 0; i < cRects; i++)
2551	{
2552	/* The clipping rectangle is relative to the top-left corner of srcRect & destRect. Adjust here. */
2553	box.srcx = srcRect.left + pRect[i].left;
2554	box.srcy = srcRect.top + pRect[i].top;
2555
2556	box.x = pRect[i].left + destRect.left;
2557	box.y = pRect[i].top + destRect.top;
2558	box.z = 0;
2559	box.w = pRect[i].right - pRect[i].left;
2560	box.h = pRect[i].bottom - pRect[i].top;
2561
2562	int rc = vmsvga3dSurfaceDMA(pThis, dst, src, SVGA3D_READ_HOST_VRAM, 1, &box);
2563	AssertRCReturn(rc, rc);
2564
2565	vgaR3UpdateDisplay(pThis, box.x, box.y, box.w, box.h);
2566	}
2567
2568	return VINF_SUCCESS;
2569	}
2570	}
2571
2572	int vmsvga3dGenerateMipmaps(PVGASTATE pThis, uint32_t sid, SVGA3dTextureFilter filter)
2573	{
2574	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2575	PVMSVGA3DSURFACE pSurface;
2576	int rc = VINF_SUCCESS;
2577	PVMSVGA3DCONTEXT pContext;
2578	uint32_t cid;
2579	GLint activeTexture = 0;
2580
2581	AssertReturn(pState, VERR_NO_MEMORY);
2582	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2583	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2584
2585	pSurface = pState->papSurfaces[sid];
2586
2587	Assert(filter != SVGA3D_TEX_FILTER_FLATCUBIC);
2588	Assert(filter != SVGA3D_TEX_FILTER_GAUSSIANCUBIC);
2589	pSurface->autogenFilter = filter;
2590
2591	Log(("vmsvga3dGenerateMipmaps: sid=%x filter=%d\n", sid, filter));
2592
2593	cid = SVGA3D_INVALID_ID;
2594	pContext = &pState->SharedCtx;
2595	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2596
2597	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
2598	{
2599	/* Unknown surface type; turn it into a texture. */
2600	Log(("vmsvga3dGenerateMipmaps: unknown src surface id=%x type=%d format=%d -> create texture\n", sid, pSurface->flags, pSurface->format));
2601	rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
2602	AssertRCReturn(rc, rc);
2603	}
2604	else
2605	{
2606	/** @todo new filter */
2607	AssertFailed();
2608	}
2609
2610	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
2611	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2612
2613	/* Must bind texture to the current context in order to change it. */
2614	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
2615	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2616
2617	/* Generate the mip maps. */
2618	pState->ext.glGenerateMipmap(GL_TEXTURE_2D);
2619	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2620
2621	/* Restore the old texture. */
2622	glBindTexture(GL_TEXTURE_2D, activeTexture);
2623	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
2624
2625	return VINF_SUCCESS;
2626	}
2627
2628	int vmsvga3dCommandPresent(PVGASTATE pThis, uint32_t sid, uint32_t cRects, SVGA3dCopyRect *pRect)
2629	{
2630	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
2631	PVMSVGA3DSURFACE pSurface;
2632	int rc = VINF_SUCCESS;
2633	PVMSVGA3DCONTEXT pContext;
2634	uint32_t cid;
2635
2636	AssertReturn(pState, VERR_NO_MEMORY);
2637	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
2638	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
2639
2640	pSurface = pState->papSurfaces[sid];
2641
2642	Log(("vmsvga3dCommandPresent: sid=%x cRects=%d\n", sid, cRects));
2643	for (uint32_t i=0; i < cRects; i++)
2644	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));
2645
2646	pContext = &pState->SharedCtx;
2647	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
2648	cid = pContext->id;
2649	VMSVGA3D_CLEAR_GL_ERRORS();
2650
2651	#if 0 /* Can't make sense of this. SVGA3dCopyRect doesn't allow scaling. non-blit-cube path change to not use it. */
2652	/*
2653	* Source surface different size?
2654	*/
2655	RTRECT2 srcViewPort;
2656	if ( pSurface->pMipmapLevels[0].size.width != pThis->svga.uWidth
2657	\|\| pSurface->pMipmapLevels[0].size.height != pThis->svga.uHeight)
2658	{
2659	float xMultiplier = (float)pSurface->pMipmapLevels[0].size.width / (float)pThis->svga.uWidth;
2660	float yMultiplier = (float)pSurface->pMipmapLevels[0].size.height / (float)pThis->svga.uHeight;
2661
2662	LogFlow(("size (%d vs %d, %d vs %d) multiplier (" FLOAT_FMT_STR ", " FLOAT_FMT_STR ")\n",
2663	pSurface->pMipmapLevels[0].size.width, pThis->svga.uWidth,
2664	pSurface->pMipmapLevels[0].size.height, pThis->svga.uHeight,
2665	FLOAT_FMT_ARGS(xMultiplier), FLOAT_FMT_ARGS(yMultiplier) ));
2666
2667	srcViewPort.x = (uint32_t)((float)pThis->svga.viewport.x * xMultiplier);
2668	srcViewPort.y = (uint32_t)((float)pThis->svga.viewport.y * yMultiplier);
2669	srcViewPort.cx = (uint32_t)((float)pThis->svga.viewport.cx * xMultiplier);
2670	srcViewPort.cy = (uint32_t)((float)pThis->svga.viewport.cy * yMultiplier);
2671	}
2672	else
2673	{
2674	srcViewPort.x = pThis->svga.viewport.x;
2675	srcViewPort.y = pThis->svga.viewport.y;
2676	srcViewPort.cx = pThis->svga.viewport.cx;
2677	srcViewPort.cy = pThis->svga.viewport.cy;
2678	}
2679	RTRECT SrcViewPortRect;
2680	SrcViewPortRect.xLeft = srcViewPort.x;
2681	SrcViewPortRect.xRight = srcViewPort.x + srcViewPort.cx;
2682	SrcViewPortRect.yBottom = srcViewPort.y;
2683	SrcViewPortRect.yTop = srcViewPort.y + srcViewPort.cy;
2684	#endif
2685
2686
2687	#if 0//ndef RT_OS_DARWIN /* blit-cube fails in this path... */
2688	/*
2689	* Note! this path is slightly faster than the glBlitFrameBuffer path below.
2690	*/
2691	SVGA3dCopyRect rect;
2692	uint32_t oldVShader, oldPShader;
2693	GLint oldTextureId;
2694
2695	if (cRects == 0)
2696	{
2697	rect.x = rect.y = rect.srcx = rect.srcy = 0;
2698	rect.w = pSurface->pMipmapLevels[0].size.width;
2699	rect.h = pSurface->pMipmapLevels[0].size.height;
2700	pRect = &rect;
2701	cRects = 1;
2702	}
2703
2704	//glPushAttrib(GL_ENABLE_BIT \| GL_DEPTH_BUFFER_BIT \| GL_COLOR_BUFFER_BIT \| GL_VIEWPORT_BIT);
2705
2706	#if 0
2707	glDisable(GL_CULL_FACE);
2708	glDisable(GL_BLEND);
2709	glDisable(GL_ALPHA_TEST);
2710	glDisable(GL_SCISSOR_TEST);
2711	glDisable(GL_STENCIL_TEST);
2712	glEnable(GL_DEPTH_TEST);
2713	glDepthFunc(GL_ALWAYS);
2714	glDepthMask(GL_TRUE);
2715	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
2716	glViewport(0, 0, pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height);
2717	#endif
2718
2719	VMSVGA3D_ASSERT_GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTextureId), pState, pContext);
2720
2721	oldVShader = pContext->state.shidVertex;
2722	oldPShader = pContext->state.shidPixel;
2723	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, SVGA_ID_INVALID);
2724	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, SVGA_ID_INVALID);
2725
2726	/* Flush shader changes. */
2727	if (pContext->pShaderContext)
2728	ShaderUpdateState(pContext->pShaderContext, 0);
2729
2730	/* Activate the read and draw framebuffer objects. */
2731	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer), pState, pContext);
2732	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */), pState, pContext);
2733
2734	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glActiveTexture(GL_TEXTURE0), pState, pContext);
2735	VMSVGA3D_ASSERT_GL_CALL(glEnable(GL_TEXTURE_2D), pState, pContext);;
2736	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture), pState, pContext);
2737
2738	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR), pState, pContext);
2739	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR), pState, pContext);;
2740
2741	#if 0
2742	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP), pState, pContext);;
2743	VMSVGA3D_ASSERT_GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP), pState, pContext);;
2744	#endif
2745
2746	/* Reset the transformation matrices. */
2747	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2748	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2749	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2750	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2751	VMSVGA3D_ASSERT_GL_CALL(glPushMatrix(), pState, pContext);
2752	VMSVGA3D_ASSERT_GL_CALL(glLoadIdentity(), pState, pContext);
2753	VMSVGA3D_ASSERT_GL_CALL(glScalef(1.0f, -1.0f, 1.0f), pState, pContext);
2754	VMSVGA3D_ASSERT_GL_CALL(glOrtho(0, pThis->svga.uWidth, pThis->svga.uHeight, 0, 0.0, -1.0), pState, pContext);
2755
2756	for (uint32_t i = 0; i < cRects; i++)
2757	{
2758	float left, right, top, bottom; /* Texture coordinates */
2759	int vertexLeft, vertexRight, vertexTop, vertexBottom;
2760
2761	pRect[i].srcx = RT_MAX(pRect[i].srcx, (uint32_t)RT_MAX(srcViewPort.x, 0));
2762	pRect[i].srcy = RT_MAX(pRect[i].srcy, (uint32_t)RT_MAX(srcViewPort.y, 0));
2763	pRect[i].x = RT_MAX(pRect[i].x, pThis->svga.viewport.x) - pThis->svga.viewport.x;
2764	pRect[i].y = RT_MAX(pRect[i].y, pThis->svga.viewport.y) - pThis->svga.viewport.y;
2765	pRect[i].w = pThis->svga.viewport.cx;
2766	pRect[i].h = pThis->svga.viewport.cy;
2767
2768	if ( pRect[i].x + pRect[i].w <= pThis->svga.viewport.x
2769	\|\| pThis->svga.viewport.x + pThis->svga.viewport.cx <= pRect[i].x
2770	\|\| pRect[i].y + pRect[i].h <= pThis->svga.viewport.y
2771	\|\| pThis->svga.viewport.y + pThis->svga.viewport.cy <= pRect[i].y)
2772	{
2773	/* Intersection is empty; skip */
2774	continue;
2775	}
2776
2777	left = pRect[i].srcx;
2778	right = pRect[i].srcx + pRect[i].w;
2779	top = pRect[i].srcy + pRect[i].h;
2780	bottom = pRect[i].srcy;
2781
2782	left /= pSurface->pMipmapLevels[0].size.width;
2783	right /= pSurface->pMipmapLevels[0].size.width;
2784	top /= pSurface->pMipmapLevels[0].size.height;
2785	bottom /= pSurface->pMipmapLevels[0].size.height;
2786
2787	vertexLeft = pRect[i].x;
2788	vertexRight = pRect[i].x + pRect[i].w;
2789	vertexTop = ((uint32_t)pThis->svga.uHeight >= pRect[i].y + pRect[i].h) ? pThis->svga.uHeight - pRect[i].y - pRect[i].h : 0;
2790	vertexBottom = pThis->svga.uHeight - pRect[i].y;
2791
2792	Log(("view port (%d,%d)(%d,%d)\n", srcViewPort.x, srcViewPort.y, srcViewPort.cx, srcViewPort.cy));
2793	Log(("vertex (%d,%d) (%d,%d) (%d,%d) (%d,%d)\n", vertexLeft, vertexBottom, vertexLeft, vertexTop, vertexRight, vertexTop, vertexRight, vertexBottom));
2794	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)));
2795
2796	glBegin(GL_QUADS);
2797
2798	/* bottom left */
2799	glTexCoord2f(left, bottom);
2800	glVertex2i(vertexLeft, vertexBottom);
2801
2802	/* top left */
2803	glTexCoord2f(left, top);
2804	glVertex2i(vertexLeft, vertexTop);
2805
2806	/* top right */
2807	glTexCoord2f(right, top);
2808	glVertex2i(vertexRight, vertexTop);
2809
2810	/* bottom right */
2811	glTexCoord2f(right, bottom);
2812	glVertex2i(vertexRight, vertexBottom);
2813
2814	VMSVGA3D_ASSERT_GL_CALL(glEnd(), pState, pContext);
2815	}
2816
2817	/* Restore old settings. */
2818	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_PROJECTION), pState, pContext);
2819	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2820	VMSVGA3D_ASSERT_GL_CALL(glMatrixMode(GL_MODELVIEW), pState, pContext);
2821	VMSVGA3D_ASSERT_GL_CALL(glPopMatrix(), pState, pContext);
2822
2823	//VMSVGA3D_ASSERT_GL_CALL(glPopAttrib(), pState, pContext);
2824
2825	VMSVGA3D_ASSERT_GL_CALL(glBindTexture(GL_TEXTURE_2D, oldTextureId), pState, pContext);
2826	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_VS, oldVShader);
2827	vmsvga3dShaderSet(pThis, pContext, cid, SVGA3D_SHADERTYPE_PS, oldPShader);
2828
2829	#else
2830	/*
2831	* glBlitFramebuffer variant.
2832	*/
2833	/* Activate the read and draw framebuffer objects. */
2834	pState->ext.glBindFramebuffer(GL_READ_FRAMEBUFFER, pContext->idReadFramebuffer);
2835	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2836	pState->ext.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0 /* back buffer */);
2837	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2838
2839	/* Bind the source objects to the right place. */
2840	pState->ext.glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, pSurface->oglId.texture, 0 /* level 0 */);
2841	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
2842
2843
2844	/* If there are no recangles specified, just grab a viewport worth bits. */
2845	VMSVGAVIEWPORT const DstViewport = pThis->svga.viewport;
2846	ASMCompilerBarrier(); /* paranoia */
2847	Assert(DstViewport.yHighWC >= DstViewport.yLowWC);
2848
2849	SVGA3dCopyRect DummyRect;
2850	if (cRects != 0)
2851	{ /* likely */ }
2852	else
2853	{
2854	/** @todo Find the usecase for this or check what the original device does.
2855	* The original code was doing some scaling based on the surface
2856	* size... */
2857	# ifdef DEBUG_bird
2858	AssertMsgFailed(("No rects to present. Who is doing that and what do they actually expect?\n"));
2859	# endif
2860	DummyRect.x = DummyRect.srcx = 0;
2861	DummyRect.y = DummyRect.srcy = 0;
2862	DummyRect.w = pThis->svga.uWidth;
2863	DummyRect.h = pThis->svga.uHeight;
2864	cRects = 1;
2865	pRect = &DummyRect;
2866	}
2867
2868	/* Blit the surface rectangle(s) to the back buffer. */
2869	uint32_t const cxSurface = pSurface->pMipmapLevels[0].size.width;
2870	uint32_t const cySurface = pSurface->pMipmapLevels[0].size.height;
2871	for (uint32_t i = 0; i < cRects; i++)
2872	{
2873	SVGA3dCopyRect ClippedRect = pRect[i];
2874
2875	/*
2876	* Do some sanity checking and limit width and height, all so we
2877	* don't need to think about wrap-arounds below.
2878	*/
2879	if (RT_LIKELY( ClippedRect.w
2880	&& ClippedRect.x < VMSVGA_MAX_X
2881	&& ClippedRect.srcx < VMSVGA_MAX_X
2882	&& ClippedRect.h
2883	&& ClippedRect.y < VMSVGA_MAX_Y
2884	&& ClippedRect.srcy < VMSVGA_MAX_Y
2885	))
2886	{ /* likely */ }
2887	else
2888	continue;
2889
2890	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2891	{ /* likely */ }
2892	else
2893	ClippedRect.w = VMSVGA_MAX_Y;
2894	if (RT_LIKELY(ClippedRect.w < VMSVGA_MAX_Y))
2895	{ /* likely */ }
2896	else
2897	ClippedRect.w = VMSVGA_MAX_Y;
2898
2899
2900	/*
2901	* Source surface clipping (paranoia). Straight forward.
2902	*/
2903	if (RT_LIKELY(ClippedRect.srcx < cxSurface))
2904	{ /* likely */ }
2905	else
2906	continue;
2907	if (RT_LIKELY(ClippedRect.srcx + ClippedRect.w <= cxSurface))
2908	{ /* likely */ }
2909	else
2910	{
2911	AssertFailed(); /* remove if annoying. */
2912	ClippedRect.w = cxSurface - ClippedRect.srcx;
2913	}
2914
2915	if (RT_LIKELY(ClippedRect.srcy < cySurface))
2916	{ /* likely */ }
2917	else
2918	continue;
2919	if (RT_LIKELY(ClippedRect.srcy + ClippedRect.h <= cySurface))
2920	{ /* likely */ }
2921	else
2922	{
2923	AssertFailed(); /* remove if annoying. */
2924	ClippedRect.h = cySurface - ClippedRect.srcy;
2925	}
2926
2927	/*
2928	* Destination viewport clipping - real PITA.
2929	*
2930	* We have to take the following into account here:
2931	* - The source image is Y inverted.
2932	* - The destination framebuffer is in world and not window coordinates,
2933	* just like the source surface. This means working in the first quadrant.
2934	* - The viewport is in window coordinate, that is fourth quadrant and
2935	* negated Y values.
2936	* - The destination framebuffer is not scrolled, so we have to blit
2937	* what's visible into the top of the framebuffer.
2938	*
2939	*
2940	* To illustrate:
2941	*
2942	* source destination 0123456789
2943	* 8 ^---------- 8 ^---------- 0 ----------->
2944	* 7 \| \| 7 \| \| 1 \| \|
2945	* 6 \| \| 6 \| ***** \| 2 \| ***** \|
2946	* 5 \| *** \| 5 \| * \| 3 \| * \|
2947	* 4 \| * \| => 4 \| * \| => 4 \| * \|
2948	* 3 \| * \| 3 \| * \| 5 \| * \|
2949	* 2 \| ******* \| 2 \| \| 6 \| \|
2950	* 1 \| \| 1 \| \| 7 \| \|
2951	* 0 -----------> 0 -----------> 8 v----------
2952	* 0123456789 0123456789 Destination window
2953	*
2954	* From the above, it follows that a destination viewport given in
2955	* window coordinates matches the source exactly when srcy = srcx = 0.
2956	*
2957	* Example (Y only):
2958	* ySrc = 0
2959	* yDst = 0
2960	* cyCopy = 9
2961	* cyScreen = cyCopy
2962	* cySurface >= cyCopy
2963	* yViewport = 5
2964	* cyViewport = 2 (i.e. '\| *** \|'
2965	* '\| \|' )
2966	* yWCViewportHi = cxScreen - yViewport = 9 - 5 = 4
2967	* yWCViewportLow = cxScreen - yViewport - cyViewport = 4 - 2 = 2
2968	*
2969	* We can see from the illustration that the final result should be:
2970	* SrcRect = (0,7) (11, 5) (cy=2 from y=5)
2971	* DstRect = (0,2) (11, 4)
2972	*
2973	* Let's postpone the switching of SrcRect.yBottom/yTop to make it
2974	* easier to follow:
2975	* SrcRect = (0,5) (11, 7)
2976	*
2977	* From the top, Y values only:
2978	* 0. Copy = { .yDst = 0, .ySrc = 0, .cy = 9 }
2979	*
2980	* 1. CopyRect.yDst (=0) is lower than yWCViewportLow:
2981	* cyAdjust = yWCViewportLow - CopyRect.yDst = 2;
2982	* Copy.yDst += cyAdjust = 2;
2983	* Copy.ySrc = unchanged;
2984	* Copy.cx -= cyAdjust = 7;
2985	* => Copy = { .yDst = 2, .ySrc = 0, .cy = 7 }
2986	*
2987	* 2. CopyRect.yDst + CopyRect.cx (=9) is higher than yWCViewportHi:
2988	* cyAdjust = CopyRect.yDst + CopyRect.cx - yWCViewportHi = 9 - 4 = 5
2989	* Copy.yDst = unchanged;
2990	* Copy.ySrc += cyAdjust = 5;
2991	* Copy.cx -= cyAdjust = 2;
2992	* => Copy = { .yDst = 2, .ySrc = 5, .cy = 2 }
2993	*
2994	*/
2995	/* X - no inversion, so kind of simple. */
2996	if (ClippedRect.x >= DstViewport.x)
2997	{
2998	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
2999	{ /* typical */ }
3000	else if (ClippedRect.x < DstViewport.xRight)
3001	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3002	else
3003	continue;
3004	}
3005	else
3006	{
3007	uint32_t cxAdjust = DstViewport.x - ClippedRect.x;
3008	if (cxAdjust < ClippedRect.w)
3009	{
3010	ClippedRect.w -= cxAdjust;
3011	ClippedRect.x += cxAdjust;
3012	ClippedRect.srcx += cxAdjust;
3013	}
3014	else
3015	continue;
3016
3017	if (ClippedRect.x + ClippedRect.w <= DstViewport.xRight)
3018	{ /* typical */ }
3019	else
3020	ClippedRect.w = DstViewport.xRight - ClippedRect.x;
3021	}
3022
3023	/* Y - complicated, see above. */
3024	if (ClippedRect.y >= DstViewport.yLowWC)
3025	{
3026	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3027	{ /* typical */ }
3028	else if (ClippedRect.y < DstViewport.yHighWC)
3029	{
3030	/* adjustment #2 */
3031	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3032	ClippedRect.srcy += cyAdjust;
3033	ClippedRect.h -= cyAdjust;
3034	}
3035	else
3036	continue;
3037	}
3038	else
3039	{
3040	/* adjustment #1 */
3041	uint32_t cyAdjust = DstViewport.yLowWC - ClippedRect.y;
3042	if (cyAdjust < ClippedRect.h)
3043	{
3044	ClippedRect.y += cyAdjust;
3045	ClippedRect.h -= cyAdjust;
3046	}
3047	else
3048	continue;
3049
3050	if (ClippedRect.y + ClippedRect.h <= DstViewport.yHighWC)
3051	{ /* typical */ }
3052	else
3053	{
3054	/* adjustment #2 */
3055	uint32_t cyAdjust = ClippedRect.y + ClippedRect.h - DstViewport.yHighWC;
3056	ClippedRect.srcy += cyAdjust;
3057	ClippedRect.h -= cyAdjust;
3058	}
3059	}
3060
3061	/* Calc source rectangle with y flipping wrt destination. */
3062	RTRECT SrcRect;
3063	SrcRect.xLeft = ClippedRect.srcx;
3064	SrcRect.xRight = ClippedRect.srcx + ClippedRect.w;
3065	SrcRect.yBottom = ClippedRect.srcy + ClippedRect.h;
3066	SrcRect.yTop = ClippedRect.srcy;
3067
3068	/* Calc destination rectangle. */
3069	RTRECT DstRect;
3070	DstRect.xLeft = ClippedRect.x;
3071	DstRect.xRight = ClippedRect.x + ClippedRect.w;
3072	DstRect.yBottom = ClippedRect.y;
3073	DstRect.yTop = ClippedRect.y + ClippedRect.h;
3074
3075	/* Adjust for viewport. */
3076	DstRect.xLeft -= DstViewport.x;
3077	DstRect.xRight -= DstViewport.x;
3078	DstRect.yBottom += DstViewport.y;
3079	DstRect.yTop += DstViewport.y;
3080
3081	Log(("SrcRect: (%d,%d)(%d,%d) DstRect: (%d,%d)(%d,%d)\n",
3082	SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3083	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop));
3084	pState->ext.glBlitFramebuffer(SrcRect.xLeft, SrcRect.yBottom, SrcRect.xRight, SrcRect.yTop,
3085	DstRect.xLeft, DstRect.yBottom, DstRect.xRight, DstRect.yTop,
3086	GL_COLOR_BUFFER_BIT, GL_LINEAR);
3087	}
3088
3089	#endif
3090
3091	/*
3092	* Flip the front and back buffers.
3093	*/
3094	#ifdef RT_OS_WINDOWS
3095	BOOL ret = SwapBuffers(pContext->hdc);
3096	AssertMsg(ret, ("SwapBuffers failed with %d\n", GetLastError()));
3097	#elif defined(RT_OS_DARWIN)
3098	vmsvga3dCocoaSwapBuffers(pContext->cocoaView, pContext->cocoaContext);
3099	#else
3100	/* show the window if not already done */
3101	if (!pContext->fMapped)
3102	{
3103	XMapWindow(pState->display, pContext->window);
3104	pContext->fMapped = true;
3105	}
3106	/* now swap the buffers, i.e. display the rendering result */
3107	glXSwapBuffers(pState->display, pContext->window);
3108	#endif
3109
3110	/*
3111	* Now we can reset the frame buffer association. Doing it earlier means no
3112	* output on darwin.
3113	*/
3114	VMSVGA3D_ASSERT_GL_CALL(pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer), pState, pContext);
3115	return VINF_SUCCESS;
3116	}
3117
3118	#ifdef RT_OS_LINUX
3119	/**
3120	* X11 event handling thread
3121	* @param ThreadSelf thread handle
3122	* @param pvUser pointer to pState structure
3123	* @returns VBox status code
3124	*/
3125	DECLCALLBACK(int) vmsvga3dXEventThread(RTTHREAD ThreadSelf, void *pvUser)
3126	{
3127	PVMSVGA3DSTATE pState = (PVMSVGA3DSTATE)pvUser;
3128	while (!pState->bTerminate)
3129	{
3130	while (XPending(pState->display) > 0)
3131	{
3132	XEvent event;
3133	XNextEvent(pState->display, &event);
3134
3135	switch (event.type)
3136	{
3137	default:
3138	break;
3139	}
3140	}
3141	/* sleep for 16ms to not burn too many cycles */
3142	RTThreadSleep(16);
3143	}
3144	return VINF_SUCCESS;
3145	}
3146	#endif // RT_OS_LINUX
3147
3148
3149	/**
3150	* Create a new 3d context
3151	*
3152	* @returns VBox status code.
3153	* @param pThis VGA device instance data.
3154	* @param cid Context id
3155	* @param fFlags VMSVGA3D_DEF_CTX_F_XXX.
3156	*/
3157	int vmsvga3dContextDefineOgl(PVGASTATE pThis, uint32_t cid, uint32_t fFlags)
3158	{
3159	int rc;
3160	PVMSVGA3DCONTEXT pContext;
3161	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3162
3163	AssertReturn(pState, VERR_NO_MEMORY);
3164	AssertReturn( cid < SVGA3D_MAX_CONTEXT_IDS
3165	\|\| (cid == VMSVGA3D_SHARED_CTX_ID && (fFlags & VMSVGA3D_DEF_CTX_F_SHARED_CTX)), VERR_INVALID_PARAMETER);
3166	#if !defined(VBOX_VMSVGA3D_DUAL_OPENGL_PROFILE) \|\| !(defined(RT_OS_DARWIN))
3167	AssertReturn(!(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE), VERR_INTERNAL_ERROR_3);
3168	#endif
3169
3170	Log(("vmsvga3dContextDefine id %x\n", cid));
3171	#ifdef DEBUG_DEBUG_GFX_WINDOW_TEST_CONTEXT
3172	if (pState->idTestContext == SVGA_ID_INVALID)
3173	{
3174	pState->idTestContext = 207;
3175	rc = vmsvga3dContextDefine(pThis, pState->idTestContext);
3176	AssertRCReturn(rc, rc);
3177	}
3178	#endif
3179
3180	if (cid == VMSVGA3D_SHARED_CTX_ID)
3181	pContext = &pState->SharedCtx;
3182	else
3183	{
3184	if (cid >= pState->cContexts)
3185	{
3186	/* Grow the array. */
3187	uint32_t cNew = RT_ALIGN(cid + 15, 16);
3188	void pvNew = RTMemRealloc(pState->papContexts, sizeof(pState->papContexts[0]) cNew);
3189	AssertReturn(pvNew, VERR_NO_MEMORY);
3190	pState->papContexts = (PVMSVGA3DCONTEXT *)pvNew;
3191	while (pState->cContexts < cNew)
3192	{
3193	pContext = (PVMSVGA3DCONTEXT)RTMemAllocZ(sizeof(*pContext));
3194	AssertReturn(pContext, VERR_NO_MEMORY);
3195	pContext->id = SVGA3D_INVALID_ID;
3196	pState->papContexts[pState->cContexts++] = pContext;
3197	}
3198	}
3199	/* If one already exists with this id, then destroy it now. */
3200	if (pState->papContexts[cid]->id != SVGA3D_INVALID_ID)
3201	vmsvga3dContextDestroy(pThis, cid);
3202
3203	pContext = pState->papContexts[cid];
3204	}
3205
3206	/*
3207	* Find or create the shared context if needed (necessary for sharing e.g. textures between contexts).
3208	*/
3209	PVMSVGA3DCONTEXT pSharedCtx = NULL;
3210	if (!(fFlags & (VMSVGA3D_DEF_CTX_F_INIT \| VMSVGA3D_DEF_CTX_F_SHARED_CTX)))
3211	{
3212	pSharedCtx = &pState->SharedCtx;
3213	if (pSharedCtx->id != VMSVGA3D_SHARED_CTX_ID)
3214	{
3215	rc = vmsvga3dContextDefineOgl(pThis, VMSVGA3D_SHARED_CTX_ID, VMSVGA3D_DEF_CTX_F_SHARED_CTX);
3216	AssertLogRelRCReturn(rc, rc);
3217	}
3218	}
3219
3220	/*
3221	* Initialize the context.
3222	*/
3223	memset(pContext, 0, sizeof(*pContext));
3224	pContext->id = cid;
3225	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
3226	pContext->aSidActiveTexture[i] = SVGA3D_INVALID_ID;
3227
3228	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
3229	pContext->state.shidVertex = SVGA3D_INVALID_ID;
3230	pContext->state.shidPixel = SVGA3D_INVALID_ID;
3231	pContext->idFramebuffer = OPENGL_INVALID_ID;
3232	pContext->idReadFramebuffer = OPENGL_INVALID_ID;
3233	pContext->idDrawFramebuffer = OPENGL_INVALID_ID;
3234
3235	rc = ShaderContextCreate(&pContext->pShaderContext);
3236	AssertRCReturn(rc, rc);
3237
3238	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->state.aRenderTargets); i++)
3239	pContext->state.aRenderTargets[i] = SVGA3D_INVALID_ID;
3240
3241	AssertReturn(pThis->svga.u64HostWindowId, VERR_INTERNAL_ERROR);
3242
3243	#ifdef RT_OS_WINDOWS
3244	/* Create a context window. */
3245	CREATESTRUCT cs;
3246	cs.lpCreateParams = NULL;
3247	cs.dwExStyle = WS_EX_NOACTIVATE \| WS_EX_NOPARENTNOTIFY \| WS_EX_TRANSPARENT;
3248	# ifdef DEBUG_GFX_WINDOW
3249	cs.lpszName = (char *)RTMemAllocZ(256);
3250	RTStrPrintf((char *)cs.lpszName, 256, "Context %d OpenGL Window", cid);
3251	# else
3252	cs.lpszName = NULL;
3253	# endif
3254	cs.lpszClass = 0;
3255	# ifdef DEBUG_GFX_WINDOW
3256	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_VISIBLE \| WS_CAPTION;
3257	# else
3258	cs.style = WS_CLIPSIBLINGS \| WS_CLIPCHILDREN \| WS_DISABLED \| WS_CHILD \| WS_VISIBLE;
3259	# endif
3260	cs.x = 0;
3261	cs.y = 0;
3262	cs.cx = pThis->svga.uWidth;
3263	cs.cy = pThis->svga.uHeight;
3264	cs.hwndParent = (HWND)pThis->svga.u64HostWindowId;
3265	cs.hMenu = NULL;
3266	cs.hInstance = pState->hInstance;
3267
3268	rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_CREATEWINDOW, (WPARAM)&pContext->hwnd, (LPARAM)&cs);
3269	AssertRCReturn(rc, rc);
3270
3271	pContext->hdc = GetDC(pContext->hwnd);
3272	AssertMsgReturn(pContext->hdc, ("GetDC %x failed with %d\n", pContext->hwnd, GetLastError()), VERR_INTERNAL_ERROR);
3273
3274	PIXELFORMATDESCRIPTOR pfd = {
3275	sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
3276	1, /* version number */
3277	PFD_DRAW_TO_WINDOW \| /* support window */
3278	PFD_DOUBLEBUFFER \| /* support double buffering */
3279	PFD_SUPPORT_OPENGL, /* support OpenGL */
3280	PFD_TYPE_RGBA, /* RGBA type */
3281	24, /* 24-bit color depth */
3282	0, 0, 0, 0, 0, 0, /* color bits ignored */
3283	8, /* alpha buffer */
3284	0, /* shift bit ignored */
3285	0, /* no accumulation buffer */
3286	0, 0, 0, 0, /* accum bits ignored */
3287	16, /* set depth buffer */
3288	16, /* set stencil buffer */
3289	0, /* no auxiliary buffer */
3290	PFD_MAIN_PLANE, /* main layer */
3291	0, /* reserved */
3292	0, 0, 0 /* layer masks ignored */
3293	};
3294	int pixelFormat;
3295	BOOL ret;
3296
3297	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3298	/** @todo is this really necessary?? */
3299	pixelFormat = ChoosePixelFormat(pContext->hdc, &pfd);
3300	AssertMsgReturn(pixelFormat != 0, ("ChoosePixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3301
3302	ret = SetPixelFormat(pContext->hdc, pixelFormat, &pfd);
3303	AssertMsgReturn(ret == TRUE, ("SetPixelFormat failed with %d\n", GetLastError()), VERR_INTERNAL_ERROR);
3304
3305	pContext->hglrc = wglCreateContext(pContext->hdc);
3306	AssertMsgReturn(pContext->hglrc, ("wglCreateContext %x failed with %d\n", pContext->hdc, GetLastError()), VERR_INTERNAL_ERROR);
3307
3308	if (pSharedCtx)
3309	{
3310	ret = wglShareLists(pSharedCtx->hglrc, pContext->hglrc);
3311	AssertMsg(ret == TRUE, ("wglShareLists(%p, %p) failed with %d\n", pSharedCtx->hglrc, pContext->hglrc, GetLastError()));
3312	}
3313
3314	#elif defined(RT_OS_DARWIN)
3315	pContext->fOtherProfile = RT_BOOL(fFlags & VMSVGA3D_DEF_CTX_F_OTHER_PROFILE);
3316
3317	NativeNSOpenGLContextRef pShareContext = pSharedCtx ? pSharedCtx->cocoaContext : NULL;
3318	NativeNSViewRef pHostView = (NativeNSViewRef)pThis->svga.u64HostWindowId;
3319	vmsvga3dCocoaCreateViewAndContext(&pContext->cocoaView, &pContext->cocoaContext,
3320	pSharedCtx ? NULL : pHostView, /* Only attach one subview, the one we'll present in. / /* @todo screen objects and stuff. */
3321	pThis->svga.uWidth, pThis->svga.uHeight,
3322	pShareContext, pContext->fOtherProfile);
3323
3324	#else
3325	Window hostWindow = (Window)pThis->svga.u64HostWindowId;
3326
3327	if (pState->display == NULL)
3328	{
3329	/* get an X display and make sure we have glX 1.3 */
3330	pState->display = XOpenDisplay(0);
3331	Assert(pState->display);
3332	int glxMajor, glxMinor;
3333	Bool ret = glXQueryVersion(pState->display, &glxMajor, &glxMinor);
3334	AssertMsgReturn(ret && glxMajor == 1 && glxMinor >= 3, ("glX >=1.3 not present"), VERR_INTERNAL_ERROR);
3335	/* start our X event handling thread */
3336	rc = RTThreadCreate(&pState->pWindowThread, vmsvga3dXEventThread, pState, 0, RTTHREADTYPE_GUI, RTTHREADFLAGS_WAITABLE, "VMSVGA3DXEVENT");
3337	if (RT_FAILURE(rc))
3338	{
3339	AssertMsgFailed(("%s: Async IO Thread creation for 3d window handling failed rc=%d\n", __FUNCTION__, rc));
3340	return rc;
3341	}
3342	}
3343	int attrib[] =
3344	{
3345	GLX_RGBA,
3346	GLX_RED_SIZE, 1,
3347	GLX_GREEN_SIZE, 1,
3348	GLX_BLUE_SIZE, 1,
3349	//GLX_ALPHA_SIZE, 1, this flips the bbos screen
3350	GLX_DOUBLEBUFFER,
3351	None
3352	};
3353	XVisualInfo *vi = glXChooseVisual(pState->display, DefaultScreen(pState->display), attrib);
3354	XSetWindowAttributes swa;
3355	swa.colormap = XCreateColormap(pState->display, XDefaultRootWindow(pState->display), vi->visual, AllocNone);
3356	swa.border_pixel = 0;
3357	swa.background_pixel = 0;
3358	swa.event_mask = StructureNotifyMask \| ExposureMask;
3359	unsigned long flags = CWBorderPixel \| CWBackPixel \| CWColormap \| CWEventMask;
3360	pContext->window = XCreateWindow(pState->display, hostWindow,//XDefaultRootWindow(pState->display),//hostWindow,
3361	0, 0, pThis->svga.uWidth, pThis->svga.uHeight,
3362	0, vi->depth, InputOutput,
3363	vi->visual, flags, &swa);
3364	AssertMsgReturn(pContext->window, ("XCreateWindow failed"), VERR_INTERNAL_ERROR);
3365	uint32_t cardinal_alpha = (uint32_t) (0.5 * (uint32_t)-1) ;
3366
3367	/* the window is hidden by default and only mapped when CommandPresent is executed on it */
3368
3369	GLXContext shareContext = pSharedCtx ? pSharedCtx->glxContext : NULL;
3370	pContext->glxContext = glXCreateContext(pState->display, vi, shareContext, GL_TRUE);
3371	AssertMsgReturn(pContext->glxContext, ("glXCreateContext failed"), VERR_INTERNAL_ERROR);
3372	#endif
3373
3374	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3375
3376	/* NULL during the first PowerOn call. */
3377	if (pState->ext.glGenFramebuffers)
3378	{
3379	/* Create a framebuffer object for this context. */
3380	pState->ext.glGenFramebuffers(1, &pContext->idFramebuffer);
3381	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3382
3383	/* Bind the object to the framebuffer target. */
3384	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, pContext->idFramebuffer);
3385	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3386
3387	/* Create read and draw framebuffer objects for this context. */
3388	pState->ext.glGenFramebuffers(1, &pContext->idReadFramebuffer);
3389	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3390
3391	pState->ext.glGenFramebuffers(1, &pContext->idDrawFramebuffer);
3392	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3393
3394	}
3395	#if 0
3396	/** @todo move to shader lib!!! */
3397	/* Clear the screen */
3398	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3399
3400	glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
3401	glClearIndex(0);
3402	glClearDepth(1);
3403	glClearStencil(0xffff);
3404	glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
3405	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
3406	glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
3407	if (pState->ext.glProvokingVertex)
3408	pState->ext.glProvokingVertex(GL_FIRST_VERTEX_CONVENTION);
3409	/** @todo move to shader lib!!! */
3410	#endif
3411	return VINF_SUCCESS;
3412	}
3413
3414
3415	/**
3416	* Create a new 3d context
3417	*
3418	* @returns VBox status code.
3419	* @param pThis VGA device instance data.
3420	* @param cid Context id
3421	*/
3422	int vmsvga3dContextDefine(PVGASTATE pThis, uint32_t cid)
3423	{
3424	return vmsvga3dContextDefineOgl(pThis, cid, 0/fFlags/);
3425	}
3426
3427	/**
3428	* Destroys a 3d context.
3429	*
3430	* @returns VBox status code.
3431	* @param pThis VGA device instance data.
3432	* @param pContext The context to destroy.
3433	* @param cid Context id
3434	*/
3435	static int vmsvga3dContextDestroyOgl(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid)
3436	{
3437	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3438	AssertReturn(pState, VERR_NO_MEMORY);
3439	AssertReturn(pContext, VERR_INVALID_PARAMETER);
3440	AssertReturn(pContext->id == cid, VERR_INVALID_PARAMETER);
3441	Log(("vmsvga3dContextDestroyOgl id %x\n", cid));
3442
3443	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3444
3445	/* Destroy all leftover pixel shaders. */
3446	for (uint32_t i = 0; i < pContext->cPixelShaders; i++)
3447	{
3448	if (pContext->paPixelShader[i].id != SVGA3D_INVALID_ID)
3449	vmsvga3dShaderDestroy(pThis, pContext->paPixelShader[i].cid, pContext->paPixelShader[i].id, pContext->paPixelShader[i].type);
3450	}
3451	if (pContext->paPixelShader)
3452	RTMemFree(pContext->paPixelShader);
3453
3454	/* Destroy all leftover vertex shaders. */
3455	for (uint32_t i = 0; i < pContext->cVertexShaders; i++)
3456	{
3457	if (pContext->paVertexShader[i].id != SVGA3D_INVALID_ID)
3458	vmsvga3dShaderDestroy(pThis, pContext->paVertexShader[i].cid, pContext->paVertexShader[i].id, pContext->paVertexShader[i].type);
3459	}
3460	if (pContext->paVertexShader)
3461	RTMemFree(pContext->paVertexShader);
3462
3463	if (pContext->state.paVertexShaderConst)
3464	RTMemFree(pContext->state.paVertexShaderConst);
3465	if (pContext->state.paPixelShaderConst)
3466	RTMemFree(pContext->state.paPixelShaderConst);
3467
3468	if (pContext->pShaderContext)
3469	{
3470	int rc = ShaderContextDestroy(pContext->pShaderContext);
3471	AssertRC(rc);
3472	}
3473
3474	if (pContext->idFramebuffer != OPENGL_INVALID_ID)
3475	{
3476	/* Unbind the object from the framebuffer target. */
3477	pState->ext.glBindFramebuffer(GL_FRAMEBUFFER, 0 /* back buffer */);
3478	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3479	pState->ext.glDeleteFramebuffers(1, &pContext->idFramebuffer);
3480	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3481
3482	if (pContext->idReadFramebuffer != OPENGL_INVALID_ID)
3483	{
3484	pState->ext.glDeleteFramebuffers(1, &pContext->idReadFramebuffer);
3485	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3486	}
3487	if (pContext->idDrawFramebuffer != OPENGL_INVALID_ID)
3488	{
3489	pState->ext.glDeleteFramebuffers(1, &pContext->idDrawFramebuffer);
3490	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3491	}
3492	}
3493	#ifdef RT_OS_WINDOWS
3494	wglMakeCurrent(pContext->hdc, NULL);
3495	wglDeleteContext(pContext->hglrc);
3496	ReleaseDC(pContext->hwnd, pContext->hdc);
3497
3498	/* Destroy the window we've created. */
3499	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_DESTROYWINDOW, (WPARAM)pContext->hwnd, 0);
3500	AssertRC(rc);
3501	#elif defined(RT_OS_DARWIN)
3502	vmsvga3dCocoaDestroyViewAndContext(pContext->cocoaView, pContext->cocoaContext);
3503	#elif defined(RT_OS_LINUX)
3504	glXMakeCurrent(pState->display, None, NULL);
3505	glXDestroyContext(pState->display, pContext->glxContext);
3506	XDestroyWindow(pState->display, pContext->window);
3507	#endif
3508
3509	memset(pContext, 0, sizeof(*pContext));
3510	pContext->id = SVGA3D_INVALID_ID;
3511
3512	VMSVGA3D_CLEAR_CURRENT_CONTEXT(pState);
3513	return VINF_SUCCESS;
3514	}
3515
3516	/**
3517	* Destroy an existing 3d context
3518	*
3519	* @returns VBox status code.
3520	* @param pThis VGA device instance data.
3521	* @param cid Context id
3522	*/
3523	int vmsvga3dContextDestroy(PVGASTATE pThis, uint32_t cid)
3524	{
3525	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3526	AssertReturn(pState, VERR_WRONG_ORDER);
3527
3528	/*
3529	* Resolve the context and hand it to the common worker function.
3530	*/
3531	if ( cid < pState->cContexts
3532	&& pState->papContexts[cid]->id == cid)
3533	return vmsvga3dContextDestroyOgl(pThis, pState->papContexts[cid], cid);
3534
3535	AssertReturn(cid < SVGA3D_MAX_CONTEXT_IDS, VERR_INVALID_PARAMETER);
3536	return VINF_SUCCESS;
3537	}
3538
3539	/**
3540	* Worker for vmsvga3dChangeMode that resizes a context.
3541	*
3542	* @param pThis The VGA device instance data.
3543	* @param pState The VMSVGA3d state.
3544	* @param pContext The context.
3545	*/
3546	static void vmsvga3dChangeModeOneContext(PVGASTATE pThis, PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext)
3547	{
3548	#ifdef RT_OS_WINDOWS
3549	/* Resize the window. */
3550	CREATESTRUCT cs;
3551	RT_ZERO(cs);
3552	cs.cx = pThis->svga.uWidth;
3553	cs.cy = pThis->svga.uHeight;
3554	int rc = vmsvga3dSendThreadMessage(pState->pWindowThread, pState->WndRequestSem, WM_VMSVGA3D_RESIZEWINDOW, (WPARAM)pContext->hwnd, (LPARAM)&cs);
3555	AssertRC(rc);
3556
3557	#elif defined(RT_OS_DARWIN)
3558	vmsvga3dCocoaViewSetSize(pContext->cocoaView, pThis->svga.uWidth, pThis->svga.uHeight);
3559
3560	#elif defined(RT_OS_LINUX)
3561	XWindowChanges wc;
3562	wc.width = pThis->svga.uWidth;
3563	wc.height = pThis->svga.uHeight;
3564	XConfigureWindow(pState->display, pContext->window, CWWidth \| CWHeight, &wc);
3565	#endif
3566	}
3567
3568	/* Handle resize */
3569	int vmsvga3dChangeMode(PVGASTATE pThis)
3570	{
3571	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3572	AssertReturn(pState, VERR_NO_MEMORY);
3573
3574	/* Resize the shared context too. */
3575	if (pState->SharedCtx.id == VMSVGA3D_SHARED_CTX_ID)
3576	vmsvga3dChangeModeOneContext(pThis, pState, &pState->SharedCtx);
3577
3578	/* Resize all active contexts. */
3579	for (uint32_t i = 0; i < pState->cContexts; i++)
3580	{
3581	PVMSVGA3DCONTEXT pContext = pState->papContexts[i];
3582	if (pContext->id != SVGA3D_INVALID_ID)
3583	vmsvga3dChangeModeOneContext(pThis, pState, pContext);
3584	}
3585
3586	return VINF_SUCCESS;
3587	}
3588
3589
3590	int vmsvga3dSetTransform(PVGASTATE pThis, uint32_t cid, SVGA3dTransformType type, float matrix[16])
3591	{
3592	PVMSVGA3DCONTEXT pContext;
3593	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3594	AssertReturn(pState, VERR_NO_MEMORY);
3595	bool fModelViewChanged = false;
3596
3597	Log(("vmsvga3dSetTransform cid=%x %s\n", cid, vmsvgaTransformToString(type)));
3598
3599	if ( cid >= pState->cContexts
3600	\|\| pState->papContexts[cid]->id != cid)
3601	{
3602	Log(("vmsvga3dSetTransform invalid context id!\n"));
3603	return VERR_INVALID_PARAMETER;
3604	}
3605	pContext = pState->papContexts[cid];
3606	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3607
3608	/* Save this matrix for vm state save/restore. */
3609	pContext->state.aTransformState[type].fValid = true;
3610	memcpy(pContext->state.aTransformState[type].matrix, matrix, sizeof(pContext->state.aTransformState[type].matrix));
3611	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_TRANSFORM;
3612
3613	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)));
3614	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)));
3615	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)));
3616	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)));
3617
3618	switch (type)
3619	{
3620	case SVGA3D_TRANSFORM_VIEW:
3621	/* View * World = Model View */
3622	glMatrixMode(GL_MODELVIEW);
3623	glLoadMatrixf(matrix);
3624	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].fValid)
3625	glMultMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_WORLD].matrix);
3626	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3627	fModelViewChanged = true;
3628	break;
3629
3630	case SVGA3D_TRANSFORM_PROJECTION:
3631	{
3632	int rc = ShaderTransformProjection(pContext->state.RectViewPort.w, pContext->state.RectViewPort.h, matrix);
3633	AssertRCReturn(rc, rc);
3634	break;
3635	}
3636
3637	case SVGA3D_TRANSFORM_TEXTURE0:
3638	glMatrixMode(GL_TEXTURE);
3639	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3640	glLoadMatrixf(matrix);
3641	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3642	break;
3643
3644	case SVGA3D_TRANSFORM_TEXTURE1:
3645	case SVGA3D_TRANSFORM_TEXTURE2:
3646	case SVGA3D_TRANSFORM_TEXTURE3:
3647	case SVGA3D_TRANSFORM_TEXTURE4:
3648	case SVGA3D_TRANSFORM_TEXTURE5:
3649	case SVGA3D_TRANSFORM_TEXTURE6:
3650	case SVGA3D_TRANSFORM_TEXTURE7:
3651	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_TEXTUREx transform!!\n"));
3652	return VERR_INVALID_PARAMETER;
3653
3654	case SVGA3D_TRANSFORM_WORLD:
3655	/* View * World = Model View */
3656	glMatrixMode(GL_MODELVIEW);
3657	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].fValid)
3658	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
3659	else
3660	glLoadIdentity();
3661	glMultMatrixf(matrix);
3662	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3663	fModelViewChanged = true;
3664	break;
3665
3666	case SVGA3D_TRANSFORM_WORLD1:
3667	case SVGA3D_TRANSFORM_WORLD2:
3668	case SVGA3D_TRANSFORM_WORLD3:
3669	Log(("vmsvga3dSetTransform: unsupported SVGA3D_TRANSFORM_WORLDx transform!!\n"));
3670	return VERR_INVALID_PARAMETER;
3671
3672	default:
3673	Log(("vmsvga3dSetTransform: unknown type!!\n"));
3674	return VERR_INVALID_PARAMETER;
3675	}
3676
3677	/* Apparently we need to reset the light and clip data after modifying the modelview matrix. */
3678	if (fModelViewChanged)
3679	{
3680	/* Reprogram the clip planes. */
3681	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aClipPlane); j++)
3682	{
3683	if (pContext->state.aClipPlane[j].fValid == true)
3684	vmsvga3dSetClipPlane(pThis, cid, j, pContext->state.aClipPlane[j].plane);
3685	}
3686
3687	/* Reprogram the light data. */
3688	for (uint32_t j = 0; j < RT_ELEMENTS(pContext->state.aLightData); j++)
3689	{
3690	if (pContext->state.aLightData[j].fValidData == true)
3691	vmsvga3dSetLightData(pThis, cid, j, &pContext->state.aLightData[j].data);
3692	}
3693	}
3694
3695	return VINF_SUCCESS;
3696	}
3697
3698	int vmsvga3dSetZRange(PVGASTATE pThis, uint32_t cid, SVGA3dZRange zRange)
3699	{
3700	PVMSVGA3DCONTEXT pContext;
3701	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3702	AssertReturn(pState, VERR_NO_MEMORY);
3703
3704	Log(("vmsvga3dSetZRange cid=%x min=%d max=%d\n", cid, (uint32_t)(zRange.min * 100.0), (uint32_t)(zRange.max * 100.0)));
3705
3706	if ( cid >= pState->cContexts
3707	\|\| pState->papContexts[cid]->id != cid)
3708	{
3709	Log(("vmsvga3dSetZRange invalid context id!\n"));
3710	return VERR_INVALID_PARAMETER;
3711	}
3712	pContext = pState->papContexts[cid];
3713	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3714
3715	pContext->state.zRange = zRange;
3716	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_ZRANGE;
3717
3718	if (zRange.min < -1.0)
3719	zRange.min = -1.0;
3720	if (zRange.max > 1.0)
3721	zRange.max = 1.0;
3722
3723	glDepthRange((GLdouble)zRange.min, (GLdouble)zRange.max);
3724	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3725	return VINF_SUCCESS;
3726	}
3727
3728	/**
3729	* Convert SVGA blend op value to its OpenGL equivalent
3730	*/
3731	static GLenum vmsvga3dBlendOp2GL(uint32_t blendOp)
3732	{
3733	switch (blendOp)
3734	{
3735	case SVGA3D_BLENDOP_ZERO:
3736	return GL_ZERO;
3737	case SVGA3D_BLENDOP_ONE:
3738	return GL_ONE;
3739	case SVGA3D_BLENDOP_SRCCOLOR:
3740	return GL_SRC_COLOR;
3741	case SVGA3D_BLENDOP_INVSRCCOLOR:
3742	return GL_ONE_MINUS_SRC_COLOR;
3743	case SVGA3D_BLENDOP_SRCALPHA:
3744	return GL_SRC_ALPHA;
3745	case SVGA3D_BLENDOP_INVSRCALPHA:
3746	return GL_ONE_MINUS_SRC_ALPHA;
3747	case SVGA3D_BLENDOP_DESTALPHA:
3748	return GL_DST_ALPHA;
3749	case SVGA3D_BLENDOP_INVDESTALPHA:
3750	return GL_ONE_MINUS_DST_ALPHA;
3751	case SVGA3D_BLENDOP_DESTCOLOR:
3752	return GL_DST_COLOR;
3753	case SVGA3D_BLENDOP_INVDESTCOLOR:
3754	return GL_ONE_MINUS_DST_COLOR;
3755	case SVGA3D_BLENDOP_SRCALPHASAT:
3756	return GL_SRC_ALPHA_SATURATE;
3757	case SVGA3D_BLENDOP_BLENDFACTOR:
3758	return GL_CONSTANT_ALPHA; /** @todo correct?? */
3759	case SVGA3D_BLENDOP_INVBLENDFACTOR:
3760	return GL_ONE_MINUS_CONSTANT_ALPHA; /** @todo correct?? */
3761	default:
3762	AssertFailed();
3763	return GL_ONE;
3764	}
3765	}
3766
3767	static GLenum vmsvga3dBlendEquation2GL(uint32_t blendEq)
3768	{
3769	switch (blendEq)
3770	{
3771	case SVGA3D_BLENDEQ_ADD:
3772	return GL_FUNC_ADD;
3773	case SVGA3D_BLENDEQ_SUBTRACT:
3774	return GL_FUNC_SUBTRACT;
3775	case SVGA3D_BLENDEQ_REVSUBTRACT:
3776	return GL_FUNC_REVERSE_SUBTRACT;
3777	case SVGA3D_BLENDEQ_MINIMUM:
3778	return GL_MIN;
3779	case SVGA3D_BLENDEQ_MAXIMUM:
3780	return GL_MAX;
3781	default:
3782	AssertMsgFailed(("blendEq=%d (%#x)\n", blendEq, blendEq));
3783	return GL_FUNC_ADD;
3784	}
3785	}
3786
3787	static GLenum vmsvgaCmpFunc2GL(uint32_t cmpFunc)
3788	{
3789	switch (cmpFunc)
3790	{
3791	case SVGA3D_CMP_NEVER:
3792	return GL_NEVER;
3793	case SVGA3D_CMP_LESS:
3794	return GL_LESS;
3795	case SVGA3D_CMP_EQUAL:
3796	return GL_EQUAL;
3797	case SVGA3D_CMP_LESSEQUAL:
3798	return GL_LEQUAL;
3799	case SVGA3D_CMP_GREATER:
3800	return GL_GREATER;
3801	case SVGA3D_CMP_NOTEQUAL:
3802	return GL_NOTEQUAL;
3803	case SVGA3D_CMP_GREATEREQUAL:
3804	return GL_GEQUAL;
3805	case SVGA3D_CMP_ALWAYS:
3806	return GL_ALWAYS;
3807	default:
3808	AssertFailed();
3809	return GL_LESS;
3810	}
3811	}
3812
3813	static GLenum vmsvgaStencipOp2GL(uint32_t stencilOp)
3814	{
3815	switch (stencilOp)
3816	{
3817	case SVGA3D_STENCILOP_KEEP:
3818	return GL_KEEP;
3819	case SVGA3D_STENCILOP_ZERO:
3820	return GL_ZERO;
3821	case SVGA3D_STENCILOP_REPLACE:
3822	return GL_REPLACE;
3823	case SVGA3D_STENCILOP_INCRSAT:
3824	return GL_INCR_WRAP;
3825	case SVGA3D_STENCILOP_DECRSAT:
3826	return GL_DECR_WRAP;
3827	case SVGA3D_STENCILOP_INVERT:
3828	return GL_INVERT;
3829	case SVGA3D_STENCILOP_INCR:
3830	return GL_INCR;
3831	case SVGA3D_STENCILOP_DECR:
3832	return GL_DECR;
3833	default:
3834	AssertFailed();
3835	return GL_KEEP;
3836	}
3837	}
3838
3839	int vmsvga3dSetRenderState(PVGASTATE pThis, uint32_t cid, uint32_t cRenderStates, SVGA3dRenderState *pRenderState)
3840	{
3841	uint32_t val;
3842	PVMSVGA3DCONTEXT pContext;
3843	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
3844	AssertReturn(pState, VERR_NO_MEMORY);
3845
3846	Log(("vmsvga3dSetRenderState cid=%x cRenderStates=%d\n", cid, cRenderStates));
3847
3848	if ( cid >= pState->cContexts
3849	\|\| pState->papContexts[cid]->id != cid)
3850	{
3851	Log(("vmsvga3dSetRenderState invalid context id!\n"));
3852	return VERR_INVALID_PARAMETER;
3853	}
3854	pContext = pState->papContexts[cid];
3855	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
3856
3857	for (unsigned i = 0; i < cRenderStates; i++)
3858	{
3859	GLenum enableCap = ~0U;
3860	Log(("vmsvga3dSetRenderState: cid=%x state=%s (%d) val=%x\n", cid, vmsvga3dGetRenderStateName(pRenderState[i].state), pRenderState[i].state, pRenderState[i].uintValue));
3861	/* Save the render state for vm state saving. */
3862	if (pRenderState[i].state < SVGA3D_RS_MAX)
3863	pContext->state.aRenderState[pRenderState[i].state] = pRenderState[i];
3864
3865	switch (pRenderState[i].state)
3866	{
3867	case SVGA3D_RS_ZENABLE: /* SVGA3dBool */
3868	enableCap = GL_DEPTH_TEST;
3869	val = pRenderState[i].uintValue;
3870	break;
3871
3872	case SVGA3D_RS_ZWRITEENABLE: /* SVGA3dBool */
3873	glDepthMask(!!pRenderState[i].uintValue);
3874	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3875	break;
3876
3877	case SVGA3D_RS_ALPHATESTENABLE: /* SVGA3dBool */
3878	enableCap = GL_ALPHA_TEST;
3879	val = pRenderState[i].uintValue;
3880	break;
3881
3882	case SVGA3D_RS_DITHERENABLE: /* SVGA3dBool */
3883	enableCap = GL_DITHER;
3884	val = pRenderState[i].uintValue;
3885	break;
3886
3887	case SVGA3D_RS_FOGENABLE: /* SVGA3dBool */
3888	enableCap = GL_FOG;
3889	val = pRenderState[i].uintValue;
3890	break;
3891
3892	case SVGA3D_RS_SPECULARENABLE: /* SVGA3dBool */
3893	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3894	break;
3895
3896	case SVGA3D_RS_LIGHTINGENABLE: /* SVGA3dBool */
3897	enableCap = GL_LIGHTING;
3898	val = pRenderState[i].uintValue;
3899	break;
3900
3901	case SVGA3D_RS_NORMALIZENORMALS: /* SVGA3dBool */
3902	/* not applicable */
3903	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3904	break;
3905
3906	case SVGA3D_RS_POINTSPRITEENABLE: /* SVGA3dBool */
3907	enableCap = GL_POINT_SPRITE_ARB;
3908	val = pRenderState[i].uintValue;
3909	break;
3910
3911	case SVGA3D_RS_POINTSIZE: /* float */
3912	/** @todo we need to apply scaling for point sizes below the min or above the max; see Wine) */
3913	if (pRenderState[i].floatValue < pState->caps.flPointSize[0])
3914	pRenderState[i].floatValue = pState->caps.flPointSize[0];
3915	if (pRenderState[i].floatValue > pState->caps.flPointSize[1])
3916	pRenderState[i].floatValue = pState->caps.flPointSize[1];
3917
3918	glPointSize(pRenderState[i].floatValue);
3919	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3920	Log(("SVGA3D_RS_POINTSIZE: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3921	break;
3922
3923	case SVGA3D_RS_POINTSIZEMIN: /* float */
3924	pState->ext.glPointParameterf(GL_POINT_SIZE_MIN, pRenderState[i].floatValue);
3925	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3926	Log(("SVGA3D_RS_POINTSIZEMIN: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3927	break;
3928
3929	case SVGA3D_RS_POINTSIZEMAX: /* float */
3930	pState->ext.glPointParameterf(GL_POINT_SIZE_MAX, pRenderState[i].floatValue);
3931	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3932	Log(("SVGA3D_RS_POINTSIZEMAX: %d\n", (uint32_t) (pRenderState[i].floatValue * 100.0)));
3933	break;
3934
3935	case SVGA3D_RS_POINTSCALEENABLE: /* SVGA3dBool */
3936	case SVGA3D_RS_POINTSCALE_A: /* float */
3937	case SVGA3D_RS_POINTSCALE_B: /* float */
3938	case SVGA3D_RS_POINTSCALE_C: /* float */
3939	Log(("vmsvga3dSetRenderState: WARNING: not applicable.\n"));
3940	break;
3941
3942	case SVGA3D_RS_AMBIENT: /* SVGA3dColor */
3943	{
3944	GLfloat color[4]; /* red, green, blue, alpha */
3945
3946	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3947
3948	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color);
3949	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3950	break;
3951	}
3952
3953	case SVGA3D_RS_CLIPPLANEENABLE: /* SVGA3dClipPlanes */
3954	{
3955	AssertCompile(SVGA3D_CLIPPLANE_MAX == (1 << 5));
3956	for (uint32_t j = 0; j <= 5; j++)
3957	{
3958	if (pRenderState[i].uintValue & RT_BIT(j))
3959	glEnable(GL_CLIP_PLANE0 + j);
3960	else
3961	glDisable(GL_CLIP_PLANE0 + j);
3962	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3963	}
3964	break;
3965	}
3966
3967	case SVGA3D_RS_FOGCOLOR: /* SVGA3dColor */
3968	{
3969	GLfloat color[4]; /* red, green, blue, alpha */
3970
3971	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &color[0], &color[1], &color[2], &color[3]);
3972
3973	glFogfv(GL_FOG_COLOR, color);
3974	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3975	break;
3976	}
3977
3978	case SVGA3D_RS_FOGSTART: /* float */
3979	glFogf(GL_FOG_START, pRenderState[i].floatValue);
3980	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3981	break;
3982
3983	case SVGA3D_RS_FOGEND: /* float */
3984	glFogf(GL_FOG_END, pRenderState[i].floatValue);
3985	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3986	break;
3987
3988	case SVGA3D_RS_FOGDENSITY: /* float */
3989	glFogf(GL_FOG_DENSITY, pRenderState[i].floatValue);
3990	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3991	break;
3992
3993	case SVGA3D_RS_RANGEFOGENABLE: /* SVGA3dBool */
3994	glFogi(GL_FOG_COORD_SRC, (pRenderState[i].uintValue) ? GL_FOG_COORD : GL_FRAGMENT_DEPTH);
3995	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
3996	break;
3997
3998	case SVGA3D_RS_FOGMODE: /* SVGA3dFogMode */
3999	{
4000	SVGA3dFogMode mode;
4001	mode.uintValue = pRenderState[i].uintValue;
4002
4003	enableCap = GL_FOG_MODE;
4004	switch (mode.s.function)
4005	{
4006	case SVGA3D_FOGFUNC_EXP:
4007	val = GL_EXP;
4008	break;
4009	case SVGA3D_FOGFUNC_EXP2:
4010	val = GL_EXP2;
4011	break;
4012	case SVGA3D_FOGFUNC_LINEAR:
4013	val = GL_LINEAR;
4014	break;
4015	default:
4016	AssertMsgFailedReturn(("Unexpected fog function %d\n", mode.s.function), VERR_INTERNAL_ERROR);
4017	break;
4018	}
4019
4020	/** @todo how to switch between vertex and pixel fog modes??? */
4021	Assert(mode.s.type == SVGA3D_FOGTYPE_PIXEL);
4022	#if 0
4023	/* The fog type determines the render state. */
4024	switch (mode.s.type)
4025	{
4026	case SVGA3D_FOGTYPE_VERTEX:
4027	renderState = D3DRS_FOGVERTEXMODE;
4028	break;
4029	case SVGA3D_FOGTYPE_PIXEL:
4030	renderState = D3DRS_FOGTABLEMODE;
4031	break;
4032	default:
4033	AssertMsgFailedReturn(("Unexpected fog type %d\n", mode.s.type), VERR_INTERNAL_ERROR);
4034	break;
4035	}
4036	#endif
4037
4038	/* Set the fog base to depth or range. */
4039	switch (mode.s.base)
4040	{
4041	case SVGA3D_FOGBASE_DEPTHBASED:
4042	glFogi(GL_FOG_COORD_SRC, GL_FRAGMENT_DEPTH);
4043	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4044	break;
4045	case SVGA3D_FOGBASE_RANGEBASED:
4046	glFogi(GL_FOG_COORD_SRC, GL_FOG_COORD);
4047	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4048	break;
4049	default:
4050	/* ignore */
4051	AssertMsgFailed(("Unexpected fog base %d\n", mode.s.base));
4052	break;
4053	}
4054	break;
4055	}
4056
4057	case SVGA3D_RS_FILLMODE: /* SVGA3dFillMode */
4058	{
4059	SVGA3dFillMode mode;
4060
4061	mode.uintValue = pRenderState[i].uintValue;
4062
4063	switch (mode.s.mode)
4064	{
4065	case SVGA3D_FILLMODE_POINT:
4066	val = GL_POINT;
4067	break;
4068	case SVGA3D_FILLMODE_LINE:
4069	val = GL_LINE;
4070	break;
4071	case SVGA3D_FILLMODE_FILL:
4072	val = GL_FILL;
4073	break;
4074	default:
4075	AssertMsgFailedReturn(("Unexpected fill mode %d\n", mode.s.mode), VERR_INTERNAL_ERROR);
4076	break;
4077	}
4078	/* @note only front and back faces */
4079	Assert(mode.s.face == SVGA3D_FACE_FRONT_BACK);
4080	glPolygonMode(GL_FRONT_AND_BACK, val);
4081	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4082	break;
4083	}
4084
4085	case SVGA3D_RS_SHADEMODE: /* SVGA3dShadeMode */
4086	switch (pRenderState[i].uintValue)
4087	{
4088	case SVGA3D_SHADEMODE_FLAT:
4089	val = GL_FLAT;
4090	break;
4091
4092	case SVGA3D_SHADEMODE_SMOOTH:
4093	val = GL_SMOOTH;
4094	break;
4095
4096	default:
4097	AssertMsgFailedReturn(("Unexpected shade mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4098	break;
4099	}
4100
4101	glShadeModel(val);
4102	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4103	break;
4104
4105	case SVGA3D_RS_LINEPATTERN: /* SVGA3dLinePattern */
4106	/* No longer supported by d3d; mesagl comments suggest not all backends support it */
4107	/** @todo */
4108	Log(("WARNING: SVGA3D_RS_LINEPATTERN %x not supported!!\n", pRenderState[i].uintValue));
4109	/*
4110	renderState = D3DRS_LINEPATTERN;
4111	val = pRenderState[i].uintValue;
4112	*/
4113	break;
4114
4115	case SVGA3D_RS_LINEAA: /* SVGA3dBool */
4116	enableCap = GL_LINE_SMOOTH;
4117	val = pRenderState[i].uintValue;
4118	break;
4119
4120	case SVGA3D_RS_LINEWIDTH: /* float */
4121	glLineWidth(pRenderState[i].floatValue);
4122	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4123	break;
4124
4125	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4126	{
4127	/* Refresh the blending state based on the new enable setting. */
4128	SVGA3dRenderState renderstate[2];
4129
4130	renderstate[0].state = SVGA3D_RS_SRCBLEND;
4131	renderstate[0].uintValue = pContext->state.aRenderState[SVGA3D_RS_SRCBLEND].uintValue;
4132	renderstate[1].state = SVGA3D_RS_BLENDEQUATION;
4133	renderstate[1].uintValue = pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue;
4134
4135	int rc = vmsvga3dSetRenderState(pThis, cid, 2, renderstate);
4136	AssertRCReturn(rc, rc);
4137
4138	if (pContext->state.aRenderState[SVGA3D_RS_BLENDENABLE].uintValue != 0)
4139	continue; /* ignore if blend is already enabled */
4140	/* no break */
4141	}
4142
4143	case SVGA3D_RS_BLENDENABLE: /* SVGA3dBool */
4144	enableCap = GL_BLEND;
4145	val = pRenderState[i].uintValue;
4146	break;
4147
4148	case SVGA3D_RS_SRCBLENDALPHA: /* SVGA3dBlendOp */
4149	case SVGA3D_RS_DSTBLENDALPHA: /* SVGA3dBlendOp */
4150	case SVGA3D_RS_SRCBLEND: /* SVGA3dBlendOp */
4151	case SVGA3D_RS_DSTBLEND: /* SVGA3dBlendOp */
4152	{
4153	GLint srcRGB, srcAlpha, dstRGB, dstAlpha;
4154	GLint blendop = vmsvga3dBlendOp2GL(pRenderState[i].uintValue);
4155
4156	glGetIntegerv(GL_BLEND_SRC_RGB, &srcRGB);
4157	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4158	glGetIntegerv(GL_BLEND_DST_RGB, &dstRGB);
4159	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4160	glGetIntegerv(GL_BLEND_DST_ALPHA, &dstAlpha);
4161	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4162	glGetIntegerv(GL_BLEND_SRC_ALPHA, &srcAlpha);
4163	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4164
4165	switch (pRenderState[i].state)
4166	{
4167	case SVGA3D_RS_SRCBLEND:
4168	srcRGB = blendop;
4169	break;
4170	case SVGA3D_RS_DSTBLEND:
4171	dstRGB = blendop;
4172	break;
4173	case SVGA3D_RS_SRCBLENDALPHA:
4174	srcAlpha = blendop;
4175	break;
4176	case SVGA3D_RS_DSTBLENDALPHA:
4177	dstAlpha = blendop;
4178	break;
4179	default:
4180	/* not possible; shut up gcc */
4181	AssertFailed();
4182	break;
4183	}
4184
4185	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4186	pState->ext.glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
4187	else
4188	glBlendFunc(srcRGB, dstRGB);
4189	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4190	break;
4191	}
4192
4193	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4194	case SVGA3D_RS_BLENDEQUATION: /* SVGA3dBlendEquation */
4195	if (pContext->state.aRenderState[SVGA3D_RS_SEPARATEALPHABLENDENABLE].uintValue != 0)
4196	pState->ext.glBlendEquationSeparate(vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATION].uintValue),
4197	vmsvga3dBlendEquation2GL(pContext->state.aRenderState[SVGA3D_RS_BLENDEQUATIONALPHA].uintValue));
4198	else
4199	{
4200	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4201	glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4202	#else
4203	pState->ext.glBlendEquation(vmsvga3dBlendEquation2GL(pRenderState[i].uintValue));
4204	#endif
4205	}
4206	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4207	break;
4208
4209	case SVGA3D_RS_BLENDCOLOR: /* SVGA3dColor */
4210	{
4211	GLfloat red, green, blue, alpha;
4212
4213	vmsvgaColor2GLFloatArray(pRenderState[i].uintValue, &red, &green, &blue, &alpha);
4214
4215	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x102
4216	glBlendColor(red, green, blue, alpha);
4217	#else
4218	pState->ext.glBlendColor(red, green, blue, alpha);
4219	#endif
4220	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4221	break;
4222	}
4223
4224	case SVGA3D_RS_CULLMODE: /* SVGA3dFace */
4225	{
4226	GLenum mode = GL_BACK; /* default for OpenGL */
4227
4228	switch (pRenderState[i].uintValue)
4229	{
4230	case SVGA3D_FACE_NONE:
4231	break;
4232	case SVGA3D_FACE_FRONT:
4233	mode = GL_FRONT;
4234	break;
4235	case SVGA3D_FACE_BACK:
4236	mode = GL_BACK;
4237	break;
4238	case SVGA3D_FACE_FRONT_BACK:
4239	mode = GL_FRONT_AND_BACK;
4240	break;
4241	default:
4242	AssertMsgFailedReturn(("Unexpected cull mode %d\n", pRenderState[i].uintValue), VERR_INTERNAL_ERROR);
4243	break;
4244	}
4245	enableCap = GL_CULL_FACE;
4246	if (pRenderState[i].uintValue != SVGA3D_FACE_NONE)
4247	{
4248	glCullFace(mode);
4249	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4250	val = 1;
4251	}
4252	else
4253	val = 0;
4254	break;
4255	}
4256
4257	case SVGA3D_RS_ZFUNC: /* SVGA3dCmpFunc */
4258	glDepthFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue));
4259	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4260	break;
4261
4262	case SVGA3D_RS_ALPHAFUNC: /* SVGA3dCmpFunc */
4263	{
4264	GLclampf ref;
4265
4266	glGetFloatv(GL_ALPHA_TEST_REF, &ref);
4267	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4268	glAlphaFunc(vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref);
4269	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4270	break;
4271	}
4272
4273	case SVGA3D_RS_ALPHAREF: /* float (0.0 .. 1.0) */
4274	{
4275	GLint func;
4276
4277	glGetIntegerv(GL_ALPHA_TEST_FUNC, &func);
4278	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4279	glAlphaFunc(func, pRenderState[i].floatValue);
4280	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4281	break;
4282	}
4283
4284	case SVGA3D_RS_STENCILENABLE: /* SVGA3dBool */
4285	enableCap = GL_STENCIL_TEST;
4286	val = pRenderState[i].uintValue;
4287	break;
4288
4289	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4290	case SVGA3D_RS_STENCILREF: /* uint32_t */
4291	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4292	{
4293	GLint func, ref;
4294	GLuint mask;
4295
4296	glGetIntegerv(GL_STENCIL_FUNC, &func);
4297	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4298	glGetIntegerv(GL_STENCIL_VALUE_MASK, (GLint *)&mask);
4299	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4300	glGetIntegerv(GL_STENCIL_REF, &ref);
4301	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4302
4303	switch (pRenderState[i].state)
4304	{
4305	case SVGA3D_RS_STENCILFUNC: /* SVGA3dCmpFunc */
4306	func = vmsvgaCmpFunc2GL(pRenderState[i].uintValue);
4307	break;
4308
4309	case SVGA3D_RS_STENCILREF: /* uint32_t */
4310	ref = pRenderState[i].uintValue;
4311	break;
4312
4313	case SVGA3D_RS_STENCILMASK: /* uint32_t */
4314	mask = pRenderState[i].uintValue;
4315	break;
4316
4317	default:
4318	/* not possible; shut up gcc */
4319	AssertFailed();
4320	break;
4321	}
4322
4323	glStencilFunc(func, ref, mask);
4324	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4325	break;
4326	}
4327
4328	case SVGA3D_RS_STENCILWRITEMASK: /* uint32_t */
4329	glStencilMask(pRenderState[i].uintValue);
4330	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4331	break;
4332
4333	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4334	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4335	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4336	{
4337	GLint sfail, dpfail, dppass;
4338	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4339
4340	glGetIntegerv(GL_STENCIL_FAIL, &sfail);
4341	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4342	glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &dpfail);
4343	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4344	glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &dppass);
4345	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4346
4347	switch (pRenderState[i].state)
4348	{
4349	case SVGA3D_RS_STENCILFAIL: /* SVGA3dStencilOp */
4350	sfail = stencilop;
4351	break;
4352	case SVGA3D_RS_STENCILZFAIL: /* SVGA3dStencilOp */
4353	dpfail = stencilop;
4354	break;
4355	case SVGA3D_RS_STENCILPASS: /* SVGA3dStencilOp */
4356	dppass = stencilop;
4357	break;
4358	default:
4359	/* not possible; shut up gcc */
4360	AssertFailed();
4361	break;
4362	}
4363	glStencilOp(sfail, dpfail, dppass);
4364	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4365	break;
4366	}
4367
4368	case SVGA3D_RS_STENCILENABLE2SIDED: /* SVGA3dBool */
4369	/* @note GL_EXT_stencil_two_side required! */
4370	if (pState->ext.fEXT_stencil_two_side)
4371	{
4372	enableCap = GL_STENCIL_TEST_TWO_SIDE_EXT;
4373	val = pRenderState[i].uintValue;
4374	}
4375	else
4376	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_STENCILENABLE2SIDED\n"));
4377	break;
4378
4379	case SVGA3D_RS_CCWSTENCILFUNC: /* SVGA3dCmpFunc */
4380	{
4381	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4382	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4383	*/
4384	GLint ref;
4385	GLuint mask;
4386
4387	glGetIntegerv(GL_STENCIL_BACK_VALUE_MASK, (GLint *)&mask);
4388	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4389	glGetIntegerv(GL_STENCIL_BACK_REF, &ref);
4390	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4391
4392	pState->ext.glStencilFuncSeparate(GL_BACK, vmsvgaCmpFunc2GL(pRenderState[i].uintValue), ref, mask);
4393	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4394	break;
4395	}
4396
4397	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4398	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4399	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4400	{
4401	/** @todo SVGA3D_RS_STENCILFAIL/ZFAIL/PASS for front & back faces
4402	* SVGA3D_RS_CCWSTENCILFAIL/ZFAIL/PASS for back faces ??
4403	*/
4404	GLint sfail, dpfail, dppass;
4405	GLenum stencilop = vmsvgaStencipOp2GL(pRenderState[i].uintValue);
4406
4407	glGetIntegerv(GL_STENCIL_BACK_FAIL, &sfail);
4408	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4409	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &dpfail);
4410	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4411	glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &dppass);
4412	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4413
4414	switch (pRenderState[i].state)
4415	{
4416	case SVGA3D_RS_CCWSTENCILFAIL: /* SVGA3dStencilOp */
4417	sfail = stencilop;
4418	break;
4419	case SVGA3D_RS_CCWSTENCILZFAIL: /* SVGA3dStencilOp */
4420	dpfail = stencilop;
4421	break;
4422	case SVGA3D_RS_CCWSTENCILPASS: /* SVGA3dStencilOp */
4423	dppass = stencilop;
4424	break;
4425	default:
4426	/* not possible; shut up gcc */
4427	AssertFailed();
4428	break;
4429	}
4430	pState->ext.glStencilOpSeparate(GL_BACK, sfail, dpfail, dppass);
4431	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4432	break;
4433	}
4434
4435	case SVGA3D_RS_ZBIAS: /* float */
4436	/** @todo unknown meaning; depth bias is not identical
4437	renderState = D3DRS_DEPTHBIAS;
4438	val = pRenderState[i].uintValue;
4439	*/
4440	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_RS_ZBIAS\n"));
4441	break;
4442
4443	case SVGA3D_RS_DEPTHBIAS: /* float */
4444	{
4445	GLfloat factor;
4446
4447	/** @todo not sure if the d3d & ogl definitions are identical. */
4448
4449	/* Do not change the factor part. */
4450	glGetFloatv(GL_POLYGON_OFFSET_FACTOR, &factor);
4451	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4452
4453	glPolygonOffset(factor, pRenderState[i].floatValue);
4454	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4455	break;
4456	}
4457
4458	case SVGA3D_RS_SLOPESCALEDEPTHBIAS: /* float */
4459	{
4460	GLfloat units;
4461
4462	/** @todo not sure if the d3d & ogl definitions are identical. */
4463
4464	/* Do not change the factor part. */
4465	glGetFloatv(GL_POLYGON_OFFSET_UNITS, &units);
4466	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4467
4468	glPolygonOffset(pRenderState[i].floatValue, units);
4469	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4470	break;
4471	}
4472
4473	case SVGA3D_RS_COLORWRITEENABLE: /* SVGA3dColorMask */
4474	{
4475	GLboolean red, green, blue, alpha;
4476	SVGA3dColorMask mask;
4477
4478	mask.uintValue = pRenderState[i].uintValue;
4479
4480	red = mask.s.red;
4481	green = mask.s.green;
4482	blue = mask.s.blue;
4483	alpha = mask.s.alpha;
4484
4485	glColorMask(red, green, blue, alpha);
4486	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4487	break;
4488	}
4489
4490	case SVGA3D_RS_COLORWRITEENABLE1: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4491	case SVGA3D_RS_COLORWRITEENABLE2: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4492	case SVGA3D_RS_COLORWRITEENABLE3: /* SVGA3dColorMask to D3DCOLORWRITEENABLE_* */
4493	Log(("vmsvga3dSetRenderState: WARNING SVGA3D_RS_COLORWRITEENABLEx not supported!!\n"));
4494	break;
4495
4496	case SVGA3D_RS_SCISSORTESTENABLE: /* SVGA3dBool */
4497	enableCap = GL_SCISSOR_TEST;
4498	val = pRenderState[i].uintValue;
4499	break;
4500
4501	#if 0
4502	case SVGA3D_RS_DIFFUSEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4503	AssertCompile(D3DMCS_COLOR2 == SVGA3D_VERTEXMATERIAL_SPECULAR);
4504	renderState = D3DRS_DIFFUSEMATERIALSOURCE;
4505	val = pRenderState[i].uintValue;
4506	break;
4507
4508	case SVGA3D_RS_SPECULARMATERIALSOURCE: /* SVGA3dVertexMaterial */
4509	renderState = D3DRS_SPECULARMATERIALSOURCE;
4510	val = pRenderState[i].uintValue;
4511	break;
4512
4513	case SVGA3D_RS_AMBIENTMATERIALSOURCE: /* SVGA3dVertexMaterial */
4514	renderState = D3DRS_AMBIENTMATERIALSOURCE;
4515	val = pRenderState[i].uintValue;
4516	break;
4517
4518	case SVGA3D_RS_EMISSIVEMATERIALSOURCE: /* SVGA3dVertexMaterial */
4519	renderState = D3DRS_EMISSIVEMATERIALSOURCE;
4520	val = pRenderState[i].uintValue;
4521	break;
4522	#endif
4523
4524	case SVGA3D_RS_WRAP3: /* SVGA3dWrapFlags */
4525	case SVGA3D_RS_WRAP4: /* SVGA3dWrapFlags */
4526	case SVGA3D_RS_WRAP5: /* SVGA3dWrapFlags */
4527	case SVGA3D_RS_WRAP6: /* SVGA3dWrapFlags */
4528	case SVGA3D_RS_WRAP7: /* SVGA3dWrapFlags */
4529	case SVGA3D_RS_WRAP8: /* SVGA3dWrapFlags */
4530	case SVGA3D_RS_WRAP9: /* SVGA3dWrapFlags */
4531	case SVGA3D_RS_WRAP10: /* SVGA3dWrapFlags */
4532	case SVGA3D_RS_WRAP11: /* SVGA3dWrapFlags */
4533	case SVGA3D_RS_WRAP12: /* SVGA3dWrapFlags */
4534	case SVGA3D_RS_WRAP13: /* SVGA3dWrapFlags */
4535	case SVGA3D_RS_WRAP14: /* SVGA3dWrapFlags */
4536	case SVGA3D_RS_WRAP15: /* SVGA3dWrapFlags */
4537	Log(("vmsvga3dSetRenderState: WARNING unsupported SVGA3D_WRAPx (x >= 3)\n"));
4538	break;
4539
4540	case SVGA3D_RS_LASTPIXEL: /* SVGA3dBool */
4541	case SVGA3D_RS_TWEENFACTOR: /* float */
4542	case SVGA3D_RS_INDEXEDVERTEXBLENDENABLE: /* SVGA3dBool */
4543	case SVGA3D_RS_VERTEXBLEND: /* SVGA3dVertexBlendFlags */
4544	Log(("vmsvga3dSetRenderState: WARNING not applicable!!\n"));
4545	break;
4546
4547	case SVGA3D_RS_MULTISAMPLEANTIALIAS: /* SVGA3dBool */
4548	enableCap = GL_MULTISAMPLE;
4549	val = pRenderState[i].uintValue;
4550	break;
4551
4552	case SVGA3D_RS_MULTISAMPLEMASK: /* uint32_t */
4553	case SVGA3D_RS_ANTIALIASEDLINEENABLE: /* SVGA3dBool */
4554	Log(("vmsvga3dSetRenderState: WARNING not applicable??!!\n"));
4555	break;
4556
4557	case SVGA3D_RS_COORDINATETYPE: /* SVGA3dCoordinateType */
4558	Assert(pRenderState[i].uintValue == SVGA3D_COORDINATE_LEFTHANDED);
4559	/** @todo setup a view matrix to scale the world space by -1 in the z-direction for right handed coordinates. */
4560	/*
4561	renderState = D3DRS_COORDINATETYPE;
4562	val = pRenderState[i].uintValue;
4563	*/
4564	break;
4565
4566	case SVGA3D_RS_FRONTWINDING: /* SVGA3dFrontWinding */
4567	Assert(pRenderState[i].uintValue == SVGA3D_FRONTWINDING_CW);
4568	/* Invert the selected mode because of y-inversion (?) */
4569	glFrontFace((pRenderState[i].uintValue != SVGA3D_FRONTWINDING_CW) ? GL_CW : GL_CCW);
4570	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4571	break;
4572
4573	case SVGA3D_RS_OUTPUTGAMMA: /* float */
4574	//AssertFailed();
4575	/*
4576	D3DRS_SRGBWRITEENABLE ??
4577	renderState = D3DRS_OUTPUTGAMMA;
4578	val = pRenderState[i].uintValue;
4579	*/
4580	break;
4581
4582	#if 0
4583
4584	case SVGA3D_RS_VERTEXMATERIALENABLE: /* SVGA3dBool */
4585	//AssertFailed();
4586	renderState = D3DRS_INDEXEDVERTEXBLENDENABLE; /* correct?? */
4587	val = pRenderState[i].uintValue;
4588	break;
4589
4590	case SVGA3D_RS_TEXTUREFACTOR: /* SVGA3dColor */
4591	renderState = D3DRS_TEXTUREFACTOR;
4592	val = pRenderState[i].uintValue;
4593	break;
4594
4595	case SVGA3D_RS_LOCALVIEWER: /* SVGA3dBool */
4596	renderState = D3DRS_LOCALVIEWER;
4597	val = pRenderState[i].uintValue;
4598	break;
4599
4600	case SVGA3D_RS_ZVISIBLE: /* SVGA3dBool */
4601	AssertFailed();
4602	/*
4603	renderState = D3DRS_ZVISIBLE;
4604	val = pRenderState[i].uintValue;
4605	*/
4606	break;
4607
4608	case SVGA3D_RS_CLIPPING: /* SVGA3dBool */
4609	renderState = D3DRS_CLIPPING;
4610	val = pRenderState[i].uintValue;
4611	break;
4612
4613	case SVGA3D_RS_WRAP0: /* SVGA3dWrapFlags */
4614	glTexParameter GL_TEXTURE_WRAP_S
4615	Assert(SVGA3D_WRAPCOORD_3 == D3DWRAPCOORD_3);
4616	renderState = D3DRS_WRAP0;
4617	val = pRenderState[i].uintValue;
4618	break;
4619
4620	case SVGA3D_RS_WRAP1: /* SVGA3dWrapFlags */
4621	glTexParameter GL_TEXTURE_WRAP_T
4622	renderState = D3DRS_WRAP1;
4623	val = pRenderState[i].uintValue;
4624	break;
4625
4626	case SVGA3D_RS_WRAP2: /* SVGA3dWrapFlags */
4627	glTexParameter GL_TEXTURE_WRAP_R
4628	renderState = D3DRS_WRAP2;
4629	val = pRenderState[i].uintValue;
4630	break;
4631
4632
4633	case SVGA3D_RS_SEPARATEALPHABLENDENABLE: /* SVGA3dBool */
4634	renderState = D3DRS_SEPARATEALPHABLENDENABLE;
4635	val = pRenderState[i].uintValue;
4636	break;
4637
4638
4639	case SVGA3D_RS_BLENDEQUATIONALPHA: /* SVGA3dBlendEquation */
4640	renderState = D3DRS_BLENDOPALPHA;
4641	val = pRenderState[i].uintValue;
4642	break;
4643
4644	case SVGA3D_RS_TRANSPARENCYANTIALIAS: /* SVGA3dTransparencyAntialiasType */
4645	AssertFailed();
4646	/*
4647	renderState = D3DRS_TRANSPARENCYANTIALIAS;
4648	val = pRenderState[i].uintValue;
4649	*/
4650	break;
4651
4652	#endif
4653	default:
4654	AssertFailed();
4655	break;
4656	}
4657
4658	if (enableCap != ~0U)
4659	{
4660	if (val)
4661	glEnable(enableCap);
4662	else
4663	glDisable(enableCap);
4664	}
4665	}
4666
4667	return VINF_SUCCESS;
4668	}
4669
4670	int vmsvga3dSetRenderTarget(PVGASTATE pThis, uint32_t cid, SVGA3dRenderTargetType type, SVGA3dSurfaceImageId target)
4671	{
4672	PVMSVGA3DCONTEXT pContext;
4673	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4674	PVMSVGA3DSURFACE pRenderTarget;
4675
4676	AssertReturn(pState, VERR_NO_MEMORY);
4677	AssertReturn(type < SVGA3D_RT_MAX, VERR_INVALID_PARAMETER);
4678	AssertReturn(target.face == 0, VERR_INVALID_PARAMETER);
4679
4680	Log(("vmsvga3dSetRenderTarget cid=%x type=%x surface id=%x\n", cid, type, target.sid));
4681
4682	if ( cid >= pState->cContexts
4683	\|\| pState->papContexts[cid]->id != cid)
4684	{
4685	Log(("vmsvga3dSetRenderTarget invalid context id!\n"));
4686	return VERR_INVALID_PARAMETER;
4687	}
4688	pContext = pState->papContexts[cid];
4689	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4690
4691	/* Save for vm state save/restore. */
4692	pContext->state.aRenderTargets[type] = target.sid;
4693
4694	if (target.sid == SVGA3D_INVALID_ID)
4695	{
4696	/* Disable render target. */
4697	switch (type)
4698	{
4699	case SVGA3D_RT_DEPTH:
4700	case SVGA3D_RT_STENCIL:
4701	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER, (type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
4702	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4703	break;
4704
4705	case SVGA3D_RT_COLOR0:
4706	case SVGA3D_RT_COLOR1:
4707	case SVGA3D_RT_COLOR2:
4708	case SVGA3D_RT_COLOR3:
4709	case SVGA3D_RT_COLOR4:
4710	case SVGA3D_RT_COLOR5:
4711	case SVGA3D_RT_COLOR6:
4712	case SVGA3D_RT_COLOR7:
4713	pContext->sidRenderTarget = SVGA3D_INVALID_ID;
4714	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, 0, 0, 0);
4715	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4716	break;
4717
4718	default:
4719	AssertFailedReturn(VERR_INVALID_PARAMETER);
4720	}
4721	return VINF_SUCCESS;
4722	}
4723
4724	AssertReturn(target.sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
4725	AssertReturn(target.sid < pState->cSurfaces && pState->papSurfaces[target.sid]->id == target.sid, VERR_INVALID_PARAMETER);
4726	pRenderTarget = pState->papSurfaces[target.sid];
4727
4728	switch (type)
4729	{
4730	case SVGA3D_RT_DEPTH:
4731	case SVGA3D_RT_STENCIL:
4732	AssertReturn(target.mipmap == 0, VERR_INVALID_PARAMETER);
4733	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4734	{
4735	Log(("vmsvga3dSetRenderTarget: create renderbuffer to be used as render target; surface id=%x type=%d format=%d\n", target.sid, pRenderTarget->flags, pRenderTarget->internalFormatGL));
4736	pContext = &pState->SharedCtx;
4737	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4738
4739	pState->ext.glGenRenderbuffers(1, &pRenderTarget->oglId.renderbuffer);
4740	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4741
4742	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4743	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4744
4745	pState->ext.glRenderbufferStorage(GL_RENDERBUFFER,
4746	pRenderTarget->internalFormatGL,
4747	pRenderTarget->pMipmapLevels[0].size.width,
4748	pRenderTarget->pMipmapLevels[0].size.height);
4749	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4750
4751	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, OPENGL_INVALID_ID);
4752	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4753
4754	pContext = pState->papContexts[cid];
4755	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
4756	pRenderTarget->idWeakContextAssociation = cid;
4757	}
4758
4759	pState->ext.glBindRenderbuffer(GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4760	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4761	Assert(!pRenderTarget->fDirty);
4762	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4763
4764	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_DEPTHSTENCIL;
4765
4766	pState->ext.glFramebufferRenderbuffer(GL_FRAMEBUFFER,
4767	(type == SVGA3D_RT_DEPTH) ? GL_DEPTH_ATTACHMENT : GL_STENCIL_ATTACHMENT,
4768	GL_RENDERBUFFER, pRenderTarget->oglId.renderbuffer);
4769	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4770	break;
4771
4772	case SVGA3D_RT_COLOR0:
4773	case SVGA3D_RT_COLOR1:
4774	case SVGA3D_RT_COLOR2:
4775	case SVGA3D_RT_COLOR3:
4776	case SVGA3D_RT_COLOR4:
4777	case SVGA3D_RT_COLOR5:
4778	case SVGA3D_RT_COLOR6:
4779	case SVGA3D_RT_COLOR7:
4780	{
4781	/* A texture surface can be used as a render target to fill it and later on used as a texture. */
4782	if (pRenderTarget->oglId.texture == OPENGL_INVALID_ID)
4783	{
4784	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));
4785	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pRenderTarget);
4786	AssertRCReturn(rc, rc);
4787	}
4788
4789	AssertReturn(pRenderTarget->oglId.texture != OPENGL_INVALID_ID, VERR_INVALID_PARAMETER);
4790	Assert(!pRenderTarget->fDirty);
4791
4792	pRenderTarget->flags \|= SVGA3D_SURFACE_HINT_RENDERTARGET;
4793
4794	pState->ext.glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + type - SVGA3D_RT_COLOR0, GL_TEXTURE_2D, pRenderTarget->oglId.texture, target.mipmap);
4795	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
4796
4797	pContext->sidRenderTarget = target.sid;
4798
4799	#ifdef DEBUG
4800	GLenum status = pState->ext.glCheckFramebufferStatus(GL_FRAMEBUFFER);
4801	if (status != GL_FRAMEBUFFER_COMPLETE)
4802	Log(("vmsvga3dSetRenderTarget: WARNING: glCheckFramebufferStatus returned %x\n", status));
4803	#endif
4804	/** @todo use glDrawBuffers too? */
4805	break;
4806	}
4807
4808	default:
4809	AssertFailedReturn(VERR_INVALID_PARAMETER);
4810	}
4811
4812	return VINF_SUCCESS;
4813	}
4814
4815	#if 0
4816	/**
4817	* Convert SVGA texture combiner value to its D3D equivalent
4818	*/
4819	static DWORD vmsvga3dTextureCombiner2D3D(uint32_t value)
4820	{
4821	switch (value)
4822	{
4823	case SVGA3D_TC_DISABLE:
4824	return D3DTOP_DISABLE;
4825	case SVGA3D_TC_SELECTARG1:
4826	return D3DTOP_SELECTARG1;
4827	case SVGA3D_TC_SELECTARG2:
4828	return D3DTOP_SELECTARG2;
4829	case SVGA3D_TC_MODULATE:
4830	return D3DTOP_MODULATE;
4831	case SVGA3D_TC_ADD:
4832	return D3DTOP_ADD;
4833	case SVGA3D_TC_ADDSIGNED:
4834	return D3DTOP_ADDSIGNED;
4835	case SVGA3D_TC_SUBTRACT:
4836	return D3DTOP_SUBTRACT;
4837	case SVGA3D_TC_BLENDTEXTUREALPHA:
4838	return D3DTOP_BLENDTEXTUREALPHA;
4839	case SVGA3D_TC_BLENDDIFFUSEALPHA:
4840	return D3DTOP_BLENDDIFFUSEALPHA;
4841	case SVGA3D_TC_BLENDCURRENTALPHA:
4842	return D3DTOP_BLENDCURRENTALPHA;
4843	case SVGA3D_TC_BLENDFACTORALPHA:
4844	return D3DTOP_BLENDFACTORALPHA;
4845	case SVGA3D_TC_MODULATE2X:
4846	return D3DTOP_MODULATE2X;
4847	case SVGA3D_TC_MODULATE4X:
4848	return D3DTOP_MODULATE4X;
4849	case SVGA3D_TC_DSDT:
4850	AssertFailed(); /** @todo ??? */
4851	return D3DTOP_DISABLE;
4852	case SVGA3D_TC_DOTPRODUCT3:
4853	return D3DTOP_DOTPRODUCT3;
4854	case SVGA3D_TC_BLENDTEXTUREALPHAPM:
4855	return D3DTOP_BLENDTEXTUREALPHAPM;
4856	case SVGA3D_TC_ADDSIGNED2X:
4857	return D3DTOP_ADDSIGNED2X;
4858	case SVGA3D_TC_ADDSMOOTH:
4859	return D3DTOP_ADDSMOOTH;
4860	case SVGA3D_TC_PREMODULATE:
4861	return D3DTOP_PREMODULATE;
4862	case SVGA3D_TC_MODULATEALPHA_ADDCOLOR:
4863	return D3DTOP_MODULATEALPHA_ADDCOLOR;
4864	case SVGA3D_TC_MODULATECOLOR_ADDALPHA:
4865	return D3DTOP_MODULATECOLOR_ADDALPHA;
4866	case SVGA3D_TC_MODULATEINVALPHA_ADDCOLOR:
4867	return D3DTOP_MODULATEINVALPHA_ADDCOLOR;
4868	case SVGA3D_TC_MODULATEINVCOLOR_ADDALPHA:
4869	return D3DTOP_MODULATEINVCOLOR_ADDALPHA;
4870	case SVGA3D_TC_BUMPENVMAPLUMINANCE:
4871	return D3DTOP_BUMPENVMAPLUMINANCE;
4872	case SVGA3D_TC_MULTIPLYADD:
4873	return D3DTOP_MULTIPLYADD;
4874	case SVGA3D_TC_LERP:
4875	return D3DTOP_LERP;
4876	default:
4877	AssertFailed();
4878	return D3DTOP_DISABLE;
4879	}
4880	}
4881
4882	/**
4883	* Convert SVGA texture arg data value to its D3D equivalent
4884	*/
4885	static DWORD vmsvga3dTextureArgData2D3D(uint32_t value)
4886	{
4887	switch (value)
4888	{
4889	case SVGA3D_TA_CONSTANT:
4890	return D3DTA_CONSTANT;
4891	case SVGA3D_TA_PREVIOUS:
4892	return D3DTA_CURRENT; /* current = previous */
4893	case SVGA3D_TA_DIFFUSE:
4894	return D3DTA_DIFFUSE;
4895	case SVGA3D_TA_TEXTURE:
4896	return D3DTA_TEXTURE;
4897	case SVGA3D_TA_SPECULAR:
4898	return D3DTA_SPECULAR;
4899	default:
4900	AssertFailed();
4901	return 0;
4902	}
4903	}
4904
4905	/**
4906	* Convert SVGA texture transform flag value to its D3D equivalent
4907	*/
4908	static DWORD vmsvga3dTextTransformFlags2D3D(uint32_t value)
4909	{
4910	switch (value)
4911	{
4912	case SVGA3D_TEX_TRANSFORM_OFF:
4913	return D3DTTFF_DISABLE;
4914	case SVGA3D_TEX_TRANSFORM_S:
4915	return D3DTTFF_COUNT1; /** @todo correct? */
4916	case SVGA3D_TEX_TRANSFORM_T:
4917	return D3DTTFF_COUNT2; /** @todo correct? */
4918	case SVGA3D_TEX_TRANSFORM_R:
4919	return D3DTTFF_COUNT3; /** @todo correct? */
4920	case SVGA3D_TEX_TRANSFORM_Q:
4921	return D3DTTFF_COUNT4; /** @todo correct? */
4922	case SVGA3D_TEX_PROJECTED:
4923	return D3DTTFF_PROJECTED;
4924	default:
4925	AssertFailed();
4926	return 0;
4927	}
4928	}
4929	#endif
4930
4931	static GLenum vmsvga3dTextureAddress2OGL(SVGA3dTextureAddress value)
4932	{
4933	switch (value)
4934	{
4935	case SVGA3D_TEX_ADDRESS_WRAP:
4936	return GL_REPEAT;
4937	case SVGA3D_TEX_ADDRESS_MIRROR:
4938	return GL_MIRRORED_REPEAT;
4939	case SVGA3D_TEX_ADDRESS_CLAMP:
4940	return GL_CLAMP_TO_EDGE;
4941	case SVGA3D_TEX_ADDRESS_BORDER:
4942	return GL_CLAMP_TO_BORDER;
4943	case SVGA3D_TEX_ADDRESS_MIRRORONCE:
4944	AssertFailed();
4945	return GL_CLAMP_TO_EDGE_SGIS; /** @todo correct? */
4946
4947	case SVGA3D_TEX_ADDRESS_EDGE:
4948	case SVGA3D_TEX_ADDRESS_INVALID:
4949	default:
4950	AssertFailed();
4951	return GL_REPEAT; /* default */
4952	}
4953	}
4954
4955	static GLenum vmsvga3dTextureFilter2OGL(SVGA3dTextureFilter value)
4956	{
4957	switch (value)
4958	{
4959	case SVGA3D_TEX_FILTER_NONE:
4960	case SVGA3D_TEX_FILTER_LINEAR:
4961	return GL_LINEAR;
4962	case SVGA3D_TEX_FILTER_NEAREST:
4963	return GL_NEAREST;
4964	case SVGA3D_TEX_FILTER_ANISOTROPIC:
4965	/** @todo */
4966	case SVGA3D_TEX_FILTER_FLATCUBIC: // Deprecated, not implemented
4967	case SVGA3D_TEX_FILTER_GAUSSIANCUBIC: // Deprecated, not implemented
4968	case SVGA3D_TEX_FILTER_PYRAMIDALQUAD: // Not currently implemented
4969	case SVGA3D_TEX_FILTER_GAUSSIANQUAD: // Not currently implemented
4970	default:
4971	AssertFailed();
4972	return GL_LINEAR; /* default */
4973	}
4974	}
4975
4976	uint32_t vmsvga3dSVGA3dColor2RGBA(SVGA3dColor value)
4977	{
4978	/* flip the red and blue bytes */
4979	uint8_t blue = value & 0xff;
4980	uint8_t red = (value >> 16) & 0xff;
4981	return (value & 0xff00ff00) \| red \| (blue << 16);
4982	}
4983
4984	int vmsvga3dSetTextureState(PVGASTATE pThis, uint32_t cid, uint32_t cTextureStates, SVGA3dTextureState *pTextureState)
4985	{
4986	GLenum val;
4987	GLenum currentStage = ~0L;
4988	PVMSVGA3DCONTEXT pContext;
4989	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
4990	AssertReturn(pState, VERR_NO_MEMORY);
4991
4992	Log(("vmsvga3dSetTextureState %x cTextureState=%d\n", cid, cTextureStates));
4993
4994	if ( cid >= pState->cContexts
4995	\|\| pState->papContexts[cid]->id != cid)
4996	{
4997	Log(("vmsvga3dSetTextureState invalid context id!\n"));
4998	return VERR_INVALID_PARAMETER;
4999	}
5000	pContext = pState->papContexts[cid];
5001	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5002
5003	for (unsigned i = 0; i < cTextureStates; i++)
5004	{
5005	GLenum textureType = ~0U;
5006	GLenum samplerType = ~0U;
5007
5008	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));
5009	/* Record the texture state for vm state saving. */
5010	if ( pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE
5011	&& pTextureState[i].name < SVGA3D_TS_MAX)
5012	{
5013	pContext->state.aTextureState[pTextureState[i].stage][pTextureState[i].name] = pTextureState[i];
5014	}
5015
5016	/* Active the right texture unit for subsequent texture state changes. */
5017	if (pTextureState[i].stage != currentStage \|\| i == 0)
5018	{
5019	/** @todo Is this the appropriate limit for all kinds of textures? It is the
5020	* size of aSidActiveTexture and for binding/unbinding we cannot exceed it. */
5021	if (pTextureState[i].stage < SVGA3D_MAX_TEXTURE_STAGE)
5022	{
5023	pState->ext.glActiveTexture(GL_TEXTURE0 + pTextureState[i].stage);
5024	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5025	currentStage = pTextureState[i].stage;
5026	}
5027	else
5028	{
5029	AssertMsgFailed(("pTextureState[%d].stage=%#x name=%#x\n", i, pTextureState[i].stage, pTextureState[i].name));
5030	continue;
5031	}
5032	}
5033
5034	switch (pTextureState[i].name)
5035	{
5036	case SVGA3D_TS_BUMPENVMAT00: /* float */
5037	case SVGA3D_TS_BUMPENVMAT01: /* float */
5038	case SVGA3D_TS_BUMPENVMAT10: /* float */
5039	case SVGA3D_TS_BUMPENVMAT11: /* float */
5040	case SVGA3D_TS_BUMPENVLSCALE: /* float */
5041	case SVGA3D_TS_BUMPENVLOFFSET: /* float */
5042	Log(("vmsvga3dSetTextureState: bump mapping texture options not supported!!\n"));
5043	break;
5044
5045	case SVGA3D_TS_COLOROP: /* SVGA3dTextureCombiner */
5046	case SVGA3D_TS_COLORARG0: /* SVGA3dTextureArgData */
5047	case SVGA3D_TS_COLORARG1: /* SVGA3dTextureArgData */
5048	case SVGA3D_TS_COLORARG2: /* SVGA3dTextureArgData */
5049	case SVGA3D_TS_ALPHAOP: /* SVGA3dTextureCombiner */
5050	case SVGA3D_TS_ALPHAARG0: /* SVGA3dTextureArgData */
5051	case SVGA3D_TS_ALPHAARG1: /* SVGA3dTextureArgData */
5052	case SVGA3D_TS_ALPHAARG2: /* SVGA3dTextureArgData */
5053	/** @todo not used by MesaGL */
5054	Log(("vmsvga3dSetTextureState: colorop/alphaop not yet supported!!\n"));
5055	break;
5056	#if 0
5057
5058	case SVGA3D_TS_TEXCOORDINDEX: /* uint32_t */
5059	textureType = D3DTSS_TEXCOORDINDEX;
5060	val = pTextureState[i].value;
5061	break;
5062
5063	case SVGA3D_TS_TEXTURETRANSFORMFLAGS: /* SVGA3dTexTransformFlags */
5064	textureType = D3DTSS_TEXTURETRANSFORMFLAGS;
5065	val = vmsvga3dTextTransformFlags2D3D(pTextureState[i].value);
5066	break;
5067	#endif
5068
5069	case SVGA3D_TS_BIND_TEXTURE: /* SVGA3dSurfaceId */
5070	if (pTextureState[i].value == SVGA3D_INVALID_ID)
5071	{
5072	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x replacing=%x\n",
5073	currentStage, pTextureState[i].value, pContext->aSidActiveTexture[currentStage]));
5074
5075	pContext->aSidActiveTexture[currentStage] = SVGA3D_INVALID_ID;
5076	/* Unselect the currently associated texture. */
5077	glBindTexture(GL_TEXTURE_2D, 0);
5078	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5079	/* Necessary for the fixed pipeline. */
5080	glDisable(GL_TEXTURE_2D);
5081	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5082	}
5083	else
5084	{
5085	uint32_t sid = pTextureState[i].value;
5086
5087	AssertReturn(sid < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5088	AssertReturn(sid < pState->cSurfaces && pState->papSurfaces[sid]->id == sid, VERR_INVALID_PARAMETER);
5089
5090	PVMSVGA3DSURFACE pSurface = pState->papSurfaces[sid];
5091
5092	Log(("SVGA3D_TS_BIND_TEXTURE: stage %d, texture surface id=%x (%d,%d) replacing=%x\n",
5093	currentStage, pTextureState[i].value, pSurface->pMipmapLevels[0].size.width,
5094	pSurface->pMipmapLevels[0].size.height, pContext->aSidActiveTexture[currentStage]));
5095
5096	if (pSurface->oglId.texture == OPENGL_INVALID_ID)
5097	{
5098	Log(("CreateTexture (%d,%d) level=%d\n", pSurface->pMipmapLevels[0].size.width, pSurface->pMipmapLevels[0].size.height, pSurface->faces[0].numMipLevels));
5099	int rc = vmsvga3dBackCreateTexture(pState, pContext, cid, pSurface);
5100	AssertRCReturn(rc, rc);
5101	}
5102
5103	glBindTexture(GL_TEXTURE_2D, pSurface->oglId.texture);
5104	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5105
5106	/* Necessary for the fixed pipeline. */
5107	glEnable(GL_TEXTURE_2D);
5108	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5109
5110	if (pContext->aSidActiveTexture[currentStage] != sid)
5111	{
5112	/* Recreate the texture state as glBindTexture resets them all (sigh). */
5113	for (uint32_t iStage = 0; iStage < SVGA3D_MAX_TEXTURE_STAGE; iStage++)
5114	{
5115	for (uint32_t j = 0; j < SVGA3D_TS_MAX; j++)
5116	{
5117	SVGA3dTextureState *pTextureStateIter = &pContext->state.aTextureState[iStage][j];
5118
5119	if ( pTextureStateIter->name != SVGA3D_TS_INVALID
5120	&& pTextureStateIter->name != SVGA3D_TS_BIND_TEXTURE)
5121	vmsvga3dSetTextureState(pThis, pContext->id, 1, pTextureStateIter);
5122	}
5123	}
5124	}
5125	pContext->aSidActiveTexture[currentStage] = sid;
5126	}
5127	/* Finished; continue with the next one. */
5128	continue;
5129
5130	case SVGA3D_TS_ADDRESSW: /* SVGA3dTextureAddress */
5131	textureType = GL_TEXTURE_WRAP_R; /* R = W */
5132	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5133	break;
5134
5135	case SVGA3D_TS_ADDRESSU: /* SVGA3dTextureAddress */
5136	textureType = GL_TEXTURE_WRAP_S; /* S = U */
5137	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5138	break;
5139
5140	case SVGA3D_TS_ADDRESSV: /* SVGA3dTextureAddress */
5141	textureType = GL_TEXTURE_WRAP_T; /* T = V */
5142	val = vmsvga3dTextureAddress2OGL((SVGA3dTextureAddress)pTextureState[i].value);
5143	break;
5144
5145	case SVGA3D_TS_MIPFILTER: /* SVGA3dTextureFilter */
5146	case SVGA3D_TS_MINFILTER: /* SVGA3dTextureFilter */
5147	{
5148	uint32_t mipFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MIPFILTER].value;
5149	uint32_t minFilter = pContext->state.aTextureState[currentStage][SVGA3D_TS_MINFILTER].value;
5150
5151	/* If SVGA3D_TS_MIPFILTER is set to NONE, then use SVGA3D_TS_MIPFILTER, otherwise SVGA3D_TS_MIPFILTER enables mipmap minification. */
5152	textureType = GL_TEXTURE_MIN_FILTER;
5153	if (mipFilter != SVGA3D_TEX_FILTER_NONE)
5154	{
5155	if (minFilter == SVGA3D_TEX_FILTER_NEAREST)
5156	{
5157	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5158	val = GL_NEAREST_MIPMAP_LINEAR;
5159	else
5160	val = GL_NEAREST_MIPMAP_NEAREST;
5161	}
5162	else
5163	{
5164	if (mipFilter == SVGA3D_TEX_FILTER_LINEAR)
5165	val = GL_LINEAR_MIPMAP_LINEAR;
5166	else
5167	val = GL_LINEAR_MIPMAP_NEAREST;
5168	}
5169	}
5170	else
5171	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)minFilter);
5172	break;
5173	}
5174
5175	case SVGA3D_TS_MAGFILTER: /* SVGA3dTextureFilter */
5176	textureType = GL_TEXTURE_MAG_FILTER;
5177	val = vmsvga3dTextureFilter2OGL((SVGA3dTextureFilter)pTextureState[i].value);
5178	Assert(val == GL_NEAREST \|\| val == GL_LINEAR);
5179	break;
5180
5181	case SVGA3D_TS_BORDERCOLOR: /* SVGA3dColor */
5182	{
5183	GLfloat color[4]; /* red, green, blue, alpha */
5184
5185	vmsvgaColor2GLFloatArray(pTextureState[i].value, &color[0], &color[1], &color[2], &color[3]);
5186
5187	glTexParameterfv(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_BORDER_COLOR, color); / Identical; default 0.0 identical too */
5188	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5189	break;
5190	}
5191
5192	case SVGA3D_TS_TEXTURE_LOD_BIAS: /* float */
5193	glTexParameterf(GL_TEXTURE_2D /** @todo flexible type /, GL_TEXTURE_LOD_BIAS, pTextureState[i].value); / Identical; default 0.0 identical too */
5194	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5195	break;
5196
5197	case SVGA3D_TS_TEXTURE_MIPMAP_LEVEL: /* uint32_t */
5198	textureType = GL_TEXTURE_BASE_LEVEL;
5199	val = pTextureState[i].value;
5200	break;
5201
5202	#if 0
5203	case SVGA3D_TS_TEXTURE_ANISOTROPIC_LEVEL: /* uint32_t */
5204	samplerType = D3DSAMP_MAXANISOTROPY;
5205	val = pTextureState[i].value; /* Identical?? */
5206	break;
5207
5208	case SVGA3D_TS_GAMMA: /* float */
5209	samplerType = D3DSAMP_SRGBTEXTURE;
5210	/* Boolean in D3D */
5211	if (pTextureState[i].floatValue == 1.0f)
5212	val = FALSE;
5213	else
5214	val = TRUE;
5215	break;
5216	#endif
5217	/* Internal commands, that don't map directly to the SetTextureStageState API. */
5218	case SVGA3D_TS_TEXCOORDGEN: /* SVGA3dTextureCoordGen */
5219	AssertFailed();
5220	break;
5221
5222	default:
5223	//AssertFailed();
5224	break;
5225	}
5226
5227	if (textureType != ~0U)
5228	{
5229	glTexParameteri(GL_TEXTURE_2D /** @todo flexible type */, textureType, val);
5230	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5231	}
5232	}
5233
5234	return VINF_SUCCESS;
5235	}
5236
5237	int vmsvga3dSetMaterial(PVGASTATE pThis, uint32_t cid, SVGA3dFace face, SVGA3dMaterial *pMaterial)
5238	{
5239	PVMSVGA3DCONTEXT pContext;
5240	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5241	AssertReturn(pState, VERR_NO_MEMORY);
5242	GLenum oglFace;
5243
5244	Log(("vmsvga3dSetMaterial cid=%x face %d\n", cid, face));
5245
5246	if ( cid >= pState->cContexts
5247	\|\| pState->papContexts[cid]->id != cid)
5248	{
5249	Log(("vmsvga3dSetMaterial invalid context id!\n"));
5250	return VERR_INVALID_PARAMETER;
5251	}
5252	pContext = pState->papContexts[cid];
5253	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5254
5255	switch (face)
5256	{
5257	case SVGA3D_FACE_NONE:
5258	case SVGA3D_FACE_FRONT:
5259	oglFace = GL_FRONT;
5260	break;
5261
5262	case SVGA3D_FACE_BACK:
5263	oglFace = GL_BACK;
5264	break;
5265
5266	case SVGA3D_FACE_FRONT_BACK:
5267	oglFace = GL_FRONT_AND_BACK;
5268	break;
5269
5270	default:
5271	AssertFailedReturn(VERR_INVALID_PARAMETER);
5272	}
5273
5274	/* Save for vm state save/restore. */
5275	pContext->state.aMaterial[face].fValid = true;
5276	pContext->state.aMaterial[face].material = *pMaterial;
5277	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_MATERIAL;
5278
5279	glMaterialfv(oglFace, GL_DIFFUSE, pMaterial->diffuse);
5280	glMaterialfv(oglFace, GL_AMBIENT, pMaterial->ambient);
5281	glMaterialfv(oglFace, GL_SPECULAR, pMaterial->specular);
5282	glMaterialfv(oglFace, GL_EMISSION, pMaterial->emissive);
5283	glMaterialfv(oglFace, GL_SHININESS, &pMaterial->shininess);
5284	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5285
5286	return VINF_SUCCESS;
5287	}
5288
5289	/** @todo Move into separate library as we are using logic from Wine here. */
5290	int vmsvga3dSetLightData(PVGASTATE pThis, uint32_t cid, uint32_t index, SVGA3dLightData *pData)
5291	{
5292	PVMSVGA3DCONTEXT pContext;
5293	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5294	AssertReturn(pState, VERR_NO_MEMORY);
5295	float QuadAttenuation;
5296
5297	Log(("vmsvga3dSetLightData cid=%x index=%d type=%d\n", cid, index, pData->type));
5298
5299	if ( cid >= pState->cContexts
5300	\|\| pState->papContexts[cid]->id != cid)
5301	{
5302	Log(("vmsvga3dSetLightData invalid context id!\n"));
5303	return VERR_INVALID_PARAMETER;
5304	}
5305	pContext = pState->papContexts[cid];
5306	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5307
5308	/* Store for vm state save/restore */
5309	if (index < SVGA3D_MAX_LIGHTS)
5310	{
5311	pContext->state.aLightData[index].fValidData = true;
5312	pContext->state.aLightData[index].data = *pData;
5313	}
5314	else
5315	AssertFailed();
5316
5317	if ( pData->attenuation0 < 0.0f
5318	\|\| pData->attenuation1 < 0.0f
5319	\|\| pData->attenuation2 < 0.0f)
5320	{
5321	Log(("vmsvga3dSetLightData: invalid negative attenuation values!!\n"));
5322	return VINF_SUCCESS; /* ignore; could crash the GL driver */
5323	}
5324
5325	/* Light settings are affected by the model view in OpenGL, the View transform in direct3d */
5326	glMatrixMode(GL_MODELVIEW);
5327	glPushMatrix();
5328	glLoadMatrixf(pContext->state.aTransformState[SVGA3D_TRANSFORM_VIEW].matrix);
5329
5330	glLightfv(GL_LIGHT0 + index, GL_DIFFUSE, pData->diffuse);
5331	glLightfv(GL_LIGHT0 + index, GL_SPECULAR, pData->specular);
5332	glLightfv(GL_LIGHT0 + index, GL_AMBIENT, pData->ambient);
5333
5334	if (pData->range * pData->range >= FLT_MIN)
5335	QuadAttenuation = 1.4f / (pData->range * pData->range);
5336	else
5337	QuadAttenuation = 0.0f;
5338
5339	switch (pData->type)
5340	{
5341	case SVGA3D_LIGHTTYPE_POINT:
5342	{
5343	GLfloat position[4];
5344
5345	position[0] = pData->position[0];
5346	position[1] = pData->position[1];
5347	position[2] = pData->position[2];
5348	position[3] = 1.0f;
5349
5350	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5351	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5352
5353	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5354	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5355
5356	/* Attenuation - Are these right? guessing... */
5357	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5358	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5359
5360	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5361	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5362
5363	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5364	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5365
5366	/** @todo range */
5367	break;
5368	}
5369
5370	case SVGA3D_LIGHTTYPE_SPOT1:
5371	{
5372	GLfloat exponent;
5373	GLfloat position[4];
5374	const GLfloat pi = 4.0f * atanf(1.0f);
5375
5376	position[0] = pData->position[0];
5377	position[1] = pData->position[1];
5378	position[2] = pData->position[2];
5379	position[3] = 1.0f;
5380
5381	glLightfv(GL_LIGHT0 + index, GL_POSITION, position);
5382	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5383
5384	position[0] = pData->direction[0];
5385	position[1] = pData->direction[1];
5386	position[2] = pData->direction[2];
5387	position[3] = 1.0f;
5388
5389	glLightfv(GL_LIGHT0 + index, GL_SPOT_DIRECTION, position);
5390	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5391
5392	/*
5393	* opengl-ish and d3d-ish spot lights use too different models for the
5394	* light "intensity" as a function of the angle towards the main light direction,
5395	* so we only can approximate very roughly.
5396	* however spot lights are rather rarely used in games (if ever used at all).
5397	* furthermore if still used, probably nobody pays attention to such details.
5398	*/
5399	if (pData->falloff == 0)
5400	{
5401	/* Falloff = 0 is easy, because d3d's and opengl's spot light equations have the
5402	* falloff resp. exponent parameter as an exponent, so the spot light lighting
5403	* will always be 1.0 for both of them, and we don't have to care for the
5404	* rest of the rather complex calculation
5405	*/
5406	exponent = 0.0f;
5407	}
5408	else
5409	{
5410	float rho = pData->theta + (pData->phi - pData->theta) / (2 * pData->falloff);
5411	if (rho < 0.0001f)
5412	rho = 0.0001f;
5413	exponent = -0.3f/log(cos(rho/2));
5414	}
5415	if (exponent > 128.0f)
5416	exponent = 128.0f;
5417
5418	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, exponent);
5419	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5420
5421	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, pData->phi * 90.0 / pi);
5422	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5423
5424	/* Attenuation - Are these right? guessing... */
5425	glLightf(GL_LIGHT0 + index, GL_CONSTANT_ATTENUATION, pData->attenuation0);
5426	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5427
5428	glLightf(GL_LIGHT0 + index, GL_LINEAR_ATTENUATION, pData->attenuation1);
5429	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5430
5431	glLightf(GL_LIGHT0 + index, GL_QUADRATIC_ATTENUATION, (QuadAttenuation < pData->attenuation2) ? pData->attenuation2 : QuadAttenuation);
5432	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5433
5434	/** @todo range */
5435	break;
5436	}
5437
5438	case SVGA3D_LIGHTTYPE_DIRECTIONAL:
5439	{
5440	GLfloat position[4];
5441
5442	position[0] = -pData->direction[0];
5443	position[1] = -pData->direction[1];
5444	position[2] = -pData->direction[2];
5445	position[3] = 0.0f;
5446
5447	glLightfv(GL_LIGHT0 + index, GL_POSITION, position); /* Note gl uses w position of 0 for direction! */
5448	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5449
5450	glLightf(GL_LIGHT0 + index, GL_SPOT_CUTOFF, 180.0f);
5451	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5452
5453	glLightf(GL_LIGHT0 + index, GL_SPOT_EXPONENT, 0.0f);
5454	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
5455	break;
5456	}
5457
5458	case SVGA3D_LIGHTTYPE_SPOT2:
5459	default:
5460	Log(("Unsupported light type!!\n"));
5461	return VERR_INVALID_PARAMETER;
5462	}
5463
5464	/* Restore the modelview matrix */
5465	glPopMatrix();
5466
5467	return VINF_SUCCESS;
5468	}
5469
5470	int vmsvga3dSetLightEnabled(PVGASTATE pThis, uint32_t cid, uint32_t index, uint32_t enabled)
5471	{
5472	PVMSVGA3DCONTEXT pContext;
5473	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5474	AssertReturn(pState, VERR_NO_MEMORY);
5475
5476	Log(("vmsvga3dSetLightEnabled cid=%x %d -> %d\n", cid, index, enabled));
5477
5478	if ( cid >= pState->cContexts
5479	\|\| pState->papContexts[cid]->id != cid)
5480	{
5481	Log(("vmsvga3dSetLightEnabled invalid context id!\n"));
5482	return VERR_INVALID_PARAMETER;
5483	}
5484	pContext = pState->papContexts[cid];
5485	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5486
5487	/* Store for vm state save/restore */
5488	if (index < SVGA3D_MAX_LIGHTS)
5489	pContext->state.aLightData[index].fEnabled = !!enabled;
5490	else
5491	AssertFailed();
5492
5493	if (enabled)
5494	{
5495	/* Load the default settings if none have been set yet. */
5496	if (!pContext->state.aLightData[index].fValidData)
5497	vmsvga3dSetLightData(pThis, cid, index, (SVGA3dLightData *)&vmsvga3d_default_light);
5498	glEnable(GL_LIGHT0 + index);
5499	}
5500	else
5501	glDisable(GL_LIGHT0 + index);
5502
5503	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5504	return VINF_SUCCESS;
5505	}
5506
5507	int vmsvga3dSetViewPort(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5508	{
5509	PVMSVGA3DCONTEXT pContext;
5510	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5511	AssertReturn(pState, VERR_NO_MEMORY);
5512
5513	Log(("vmsvga3dSetViewPort cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5514
5515	if ( cid >= pState->cContexts
5516	\|\| pState->papContexts[cid]->id != cid)
5517	{
5518	Log(("vmsvga3dSetViewPort invalid context id!\n"));
5519	return VERR_INVALID_PARAMETER;
5520	}
5521	pContext = pState->papContexts[cid];
5522	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5523
5524	/* Save for vm state save/restore. */
5525	pContext->state.RectViewPort = *pRect;
5526	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VIEWPORT;
5527
5528	/** @todo y-inversion for partial viewport coordinates? */
5529	glViewport(pRect->x, pRect->y, pRect->w, pRect->h);
5530	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5531
5532	/* Reset the projection matrix as that relies on the viewport setting. */
5533	if (pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].fValid == true)
5534	{
5535	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, pContext->state.aTransformState[SVGA3D_TRANSFORM_PROJECTION].matrix);
5536	}
5537	else
5538	{
5539	float matrix[16];
5540
5541	/* identity matrix if no matrix set. */
5542	memset(matrix, 0, sizeof(matrix));
5543	matrix[0] = 1.0;
5544	matrix[5] = 1.0;
5545	matrix[10] = 1.0;
5546	matrix[15] = 1.0;
5547	vmsvga3dSetTransform(pThis, cid, SVGA3D_TRANSFORM_PROJECTION, matrix);
5548	}
5549
5550	return VINF_SUCCESS;
5551	}
5552
5553	int vmsvga3dSetClipPlane(PVGASTATE pThis, uint32_t cid, uint32_t index, float plane[4])
5554	{
5555	PVMSVGA3DCONTEXT pContext;
5556	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5557	AssertReturn(pState, VERR_NO_MEMORY);
5558	double oglPlane[4];
5559
5560	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)));
5561	AssertReturn(index < SVGA3D_CLIPPLANE_MAX, VERR_INVALID_PARAMETER);
5562
5563	if ( cid >= pState->cContexts
5564	\|\| pState->papContexts[cid]->id != cid)
5565	{
5566	Log(("vmsvga3dSetClipPlane invalid context id!\n"));
5567	return VERR_INVALID_PARAMETER;
5568	}
5569	pContext = pState->papContexts[cid];
5570	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5571
5572	/* Store for vm state save/restore. */
5573	pContext->state.aClipPlane[index].fValid = true;
5574	memcpy(pContext->state.aClipPlane[index].plane, plane, sizeof(pContext->state.aClipPlane[index].plane));
5575
5576	/** @todo clip plane affected by model view in OpenGL & view in D3D + vertex shader -> not transformed (see Wine; state.c clipplane) */
5577	oglPlane[0] = (double)plane[0];
5578	oglPlane[1] = (double)plane[1];
5579	oglPlane[2] = (double)plane[2];
5580	oglPlane[3] = (double)plane[3];
5581
5582	glClipPlane(GL_CLIP_PLANE0 + index, oglPlane);
5583	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5584
5585	return VINF_SUCCESS;
5586	}
5587
5588	int vmsvga3dSetScissorRect(PVGASTATE pThis, uint32_t cid, SVGA3dRect *pRect)
5589	{
5590	PVMSVGA3DCONTEXT pContext;
5591	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5592	AssertReturn(pState, VERR_NO_MEMORY);
5593
5594	Log(("vmsvga3dSetScissorRect cid=%x (%d,%d)(%d,%d)\n", cid, pRect->x, pRect->y, pRect->w, pRect->h));
5595
5596	if ( cid >= pState->cContexts
5597	\|\| pState->papContexts[cid]->id != cid)
5598	{
5599	Log(("vmsvga3dSetScissorRect invalid context id!\n"));
5600	return VERR_INVALID_PARAMETER;
5601	}
5602	pContext = pState->papContexts[cid];
5603	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5604
5605	/* Store for vm state save/restore. */
5606	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_SCISSORRECT;
5607	pContext->state.RectScissor = *pRect;
5608
5609	glScissor(pRect->x, pRect->y, pRect->w, pRect->h);
5610	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5611
5612	return VINF_SUCCESS;
5613	}
5614
5615	static void vmsvgaColor2GLFloatArray(uint32_t color, GLfloat pRed, GLfloat pGreen, GLfloat pBlue, GLfloat pAlpha)
5616	{
5617	/* Convert byte color components to float (0-1.0) */
5618	*pAlpha = (GLfloat)(color >> 24) / 255.0;
5619	*pRed = (GLfloat)((color >> 16) & 0xff) / 255.0;
5620	*pGreen = (GLfloat)((color >> 8) & 0xff) / 255.0;
5621	*pBlue = (GLfloat)(color & 0xff) / 255.0;
5622	}
5623
5624	int vmsvga3dCommandClear(PVGASTATE pThis, uint32_t cid, SVGA3dClearFlag clearFlag, uint32_t color, float depth, uint32_t stencil,
5625	uint32_t cRects, SVGA3dRect *pRect)
5626	{
5627	GLbitfield mask = 0;
5628	PVMSVGA3DCONTEXT pContext;
5629	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
5630	AssertReturn(pState, VERR_NO_MEMORY);
5631	GLboolean fDepthWriteEnabled = GL_FALSE;
5632
5633	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));
5634
5635	if ( cid >= pState->cContexts
5636	\|\| pState->papContexts[cid]->id != cid)
5637	{
5638	Log(("vmsvga3dCommandClear invalid context id!\n"));
5639	return VERR_INVALID_PARAMETER;
5640	}
5641	pContext = pState->papContexts[cid];
5642	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5643
5644	if (clearFlag & SVGA3D_CLEAR_COLOR)
5645	{
5646	GLfloat red, green, blue, alpha;
5647
5648	vmsvgaColor2GLFloatArray(color, &red, &green, &blue, &alpha);
5649
5650	/* Set the color clear value. */
5651	glClearColor(red, green, blue, alpha);
5652
5653	mask \|= GL_COLOR_BUFFER_BIT;
5654	}
5655	if (clearFlag & SVGA3D_CLEAR_STENCIL)
5656	{
5657	/** @todo possibly the same problem as with glDepthMask */
5658	glClearStencil(stencil);
5659	mask \|= GL_STENCIL_BUFFER_BIT;
5660	}
5661	if (clearFlag & SVGA3D_CLEAR_DEPTH)
5662	{
5663	glClearDepth((GLdouble)depth);
5664	mask \|= GL_DEPTH_BUFFER_BIT;
5665
5666	/* glClear will not clear the depth buffer if writing is disabled. */
5667	glGetBooleanv(GL_DEPTH_WRITEMASK, &fDepthWriteEnabled);
5668	if (fDepthWriteEnabled == GL_FALSE)
5669	glDepthMask(GL_TRUE);
5670	}
5671
5672	if (cRects)
5673	{
5674	/* Save the current scissor test bit and scissor box. */
5675	glPushAttrib(GL_SCISSOR_BIT);
5676	glEnable(GL_SCISSOR_TEST);
5677	for (unsigned i=0; i < cRects; i++)
5678	{
5679	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));
5680	glScissor(pRect[i].x, pRect[i].y, pRect[i].w, pRect[i].h);
5681	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5682	glClear(mask);
5683	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5684	}
5685	/* Restore the old scissor test bit and box */
5686	glPopAttrib();
5687	}
5688	else
5689	{
5690	glClear(mask);
5691	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5692	}
5693
5694	/* Restore depth write state. */
5695	if ( (clearFlag & SVGA3D_CLEAR_DEPTH)
5696	&& fDepthWriteEnabled == GL_FALSE)
5697	glDepthMask(GL_FALSE);
5698
5699	return VINF_SUCCESS;
5700	}
5701
5702	/* Convert VMWare vertex declaration to its OpenGL equivalent. */
5703	int vmsvga3dVertexDecl2OGL(SVGA3dVertexArrayIdentity &identity, GLint &size, GLenum &type, GLboolean &normalized)
5704	{
5705	normalized = GL_FALSE;
5706	switch (identity.type)
5707	{
5708	case SVGA3D_DECLTYPE_FLOAT1:
5709	size = 1;
5710	type = GL_FLOAT;
5711	break;
5712	case SVGA3D_DECLTYPE_FLOAT2:
5713	size = 2;
5714	type = GL_FLOAT;
5715	break;
5716	case SVGA3D_DECLTYPE_FLOAT3:
5717	size = 3;
5718	type = GL_FLOAT;
5719	break;
5720	case SVGA3D_DECLTYPE_FLOAT4:
5721	size = 4;
5722	type = GL_FLOAT;
5723	break;
5724
5725	case SVGA3D_DECLTYPE_D3DCOLOR:
5726	size = GL_BGRA; /* @note requires GL_ARB_vertex_array_bgra */
5727	type = GL_UNSIGNED_BYTE;
5728	normalized = GL_TRUE; /* glVertexAttribPointer fails otherwise */
5729	break;
5730
5731	case SVGA3D_DECLTYPE_UBYTE4N:
5732	normalized = GL_TRUE;
5733	/* no break */
5734	case SVGA3D_DECLTYPE_UBYTE4:
5735	size = 4;
5736	type = GL_UNSIGNED_BYTE;
5737	break;
5738
5739	case SVGA3D_DECLTYPE_SHORT2N:
5740	normalized = GL_TRUE;
5741	/* no break */
5742	case SVGA3D_DECLTYPE_SHORT2:
5743	size = 2;
5744	type = GL_SHORT;
5745	break;
5746
5747	case SVGA3D_DECLTYPE_SHORT4N:
5748	normalized = GL_TRUE;
5749	/* no break */
5750	case SVGA3D_DECLTYPE_SHORT4:
5751	size = 4;
5752	type = GL_SHORT;
5753	break;
5754
5755	case SVGA3D_DECLTYPE_USHORT4N:
5756	normalized = GL_TRUE;
5757	size = 4;
5758	type = GL_UNSIGNED_SHORT;
5759	break;
5760
5761	case SVGA3D_DECLTYPE_USHORT2N:
5762	normalized = GL_TRUE;
5763	size = 2;
5764	type = GL_UNSIGNED_SHORT;
5765	break;
5766
5767	case SVGA3D_DECLTYPE_UDEC3:
5768	size = 3;
5769	type = GL_UNSIGNED_INT_2_10_10_10_REV; /** @todo correct? */
5770	break;
5771
5772	case SVGA3D_DECLTYPE_DEC3N:
5773	normalized = true;
5774	size = 3;
5775	type = GL_INT_2_10_10_10_REV; /** @todo correct? */
5776	break;
5777
5778	case SVGA3D_DECLTYPE_FLOAT16_2:
5779	size = 2;
5780	type = GL_HALF_FLOAT;
5781	break;
5782	case SVGA3D_DECLTYPE_FLOAT16_4:
5783	size = 4;
5784	type = GL_HALF_FLOAT;
5785	break;
5786	default:
5787	AssertFailedReturn(VERR_INVALID_PARAMETER);
5788	}
5789
5790	//pVertexElement->Method = identity.method;
5791	//pVertexElement->Usage = identity.usage;
5792
5793	return VINF_SUCCESS;
5794	}
5795
5796	/* Convert VMWare primitive type to its OpenGL equivalent. */
5797	/* Calculate the vertex count based on the primitive type and nr of primitives. */
5798	int vmsvga3dPrimitiveType2OGL(SVGA3dPrimitiveType PrimitiveType, GLenum pMode, uint32_t cPrimitiveCount, uint32_t pcVertices)
5799	{
5800	switch (PrimitiveType)
5801	{
5802	case SVGA3D_PRIMITIVE_TRIANGLELIST:
5803	*pMode = GL_TRIANGLES;
5804	pcVertices = cPrimitiveCount 3;
5805	break;
5806	case SVGA3D_PRIMITIVE_POINTLIST:
5807	*pMode = GL_POINTS;
5808	*pcVertices = cPrimitiveCount;
5809	break;
5810	case SVGA3D_PRIMITIVE_LINELIST:
5811	*pMode = GL_LINES;
5812	pcVertices = cPrimitiveCount 2;
5813	break;
5814	case SVGA3D_PRIMITIVE_LINESTRIP:
5815	*pMode = GL_LINE_STRIP;
5816	*pcVertices = cPrimitiveCount + 1;
5817	break;
5818	case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
5819	*pMode = GL_TRIANGLE_STRIP;
5820	*pcVertices = cPrimitiveCount + 2;
5821	break;
5822	case SVGA3D_PRIMITIVE_TRIANGLEFAN:
5823	*pMode = GL_TRIANGLE_FAN;
5824	*pcVertices = cPrimitiveCount + 2;
5825	break;
5826	default:
5827	return VERR_INVALID_PARAMETER;
5828	}
5829	return VINF_SUCCESS;
5830	}
5831
5832	int vmsvga3dDrawPrimitivesProcessVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5833	{
5834	unsigned sidVertex = pVertexDecl[0].array.surfaceId;
5835	PVMSVGA3DSURFACE pVertexSurface;
5836
5837	AssertReturn(sidVertex < SVGA3D_MAX_SURFACE_IDS, VERR_INVALID_PARAMETER);
5838	AssertReturn(sidVertex < pState->cSurfaces && pState->papSurfaces[sidVertex]->id == sidVertex, VERR_INVALID_PARAMETER);
5839
5840	pVertexSurface = pState->papSurfaces[sidVertex];
5841	Log(("vmsvga3dDrawPrimitives: vertex surface %x\n", sidVertex));
5842
5843	/* Create and/or bind the vertex buffer. */
5844	if (pVertexSurface->oglId.buffer == OPENGL_INVALID_ID)
5845	{
5846	Log(("vmsvga3dDrawPrimitives: create vertex buffer fDirty=%d size=%x bytes\n", pVertexSurface->fDirty, pVertexSurface->pMipmapLevels[0].cbSurface));
5847	PVMSVGA3DCONTEXT pSavedCtx = pContext;
5848	pContext = &pState->SharedCtx;
5849	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5850
5851	pState->ext.glGenBuffers(1, &pVertexSurface->oglId.buffer);
5852	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5853
5854	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5855	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5856
5857	Assert(pVertexSurface->fDirty);
5858	/** @todo rethink usage dynamic/static */
5859	pState->ext.glBufferData(GL_ARRAY_BUFFER, pVertexSurface->pMipmapLevels[0].cbSurface, pVertexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
5860	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5861
5862	pVertexSurface->pMipmapLevels[0].fDirty = false;
5863	pVertexSurface->fDirty = false;
5864
5865	pVertexSurface->flags \|= SVGA3D_SURFACE_HINT_VERTEXBUFFER;
5866
5867	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, OPENGL_INVALID_ID);
5868	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5869
5870	pContext = pSavedCtx;
5871	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
5872	}
5873
5874	Assert(pVertexSurface->fDirty == false);
5875	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, pVertexSurface->oglId.buffer);
5876	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5877
5878	/* Setup the vertex declarations. */
5879	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5880	{
5881	GLint size;
5882	GLenum type;
5883	GLboolean normalized;
5884	GLuint index = iVertexDeclBase + iVertex;
5885
5886	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));
5887
5888	int rc = vmsvga3dVertexDecl2OGL(pVertexDecl[iVertex].identity, size, type, normalized);
5889	AssertRCReturn(rc, rc);
5890
5891	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5892	{
5893	/* Use numbered vertex arrays when shaders are active. */
5894	pState->ext.glEnableVertexAttribArray(index);
5895	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5896	pState->ext.glVertexAttribPointer(index, size, type, normalized, pVertexDecl[iVertex].array.stride,
5897	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5898	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5899	/** @todo case SVGA3D_DECLUSAGE_COLOR: color component order not identical!! test GL_BGRA!! */
5900	}
5901	else
5902	{
5903	/* Use the predefined selection of vertex streams for the fixed pipeline. */
5904	switch (pVertexDecl[iVertex].identity.usage)
5905	{
5906	case SVGA3D_DECLUSAGE_POSITION:
5907	glEnableClientState(GL_VERTEX_ARRAY);
5908	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5909	glVertexPointer(size, type, pVertexDecl[iVertex].array.stride,
5910	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5911	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5912	break;
5913	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
5914	AssertFailed();
5915	break;
5916	case SVGA3D_DECLUSAGE_BLENDINDICES:
5917	AssertFailed();
5918	break;
5919	case SVGA3D_DECLUSAGE_NORMAL:
5920	glEnableClientState(GL_NORMAL_ARRAY);
5921	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5922	glNormalPointer(type, pVertexDecl[iVertex].array.stride,
5923	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5924	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5925	break;
5926	case SVGA3D_DECLUSAGE_PSIZE:
5927	AssertFailed();
5928	break;
5929	case SVGA3D_DECLUSAGE_TEXCOORD:
5930	/* Specify the affected texture unit. */
5931	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
5932	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5933	#else
5934	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
5935	#endif
5936	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
5937	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5938	glTexCoordPointer(size, type, pVertexDecl[iVertex].array.stride,
5939	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5940	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5941	break;
5942	case SVGA3D_DECLUSAGE_TANGENT:
5943	AssertFailed();
5944	break;
5945	case SVGA3D_DECLUSAGE_BINORMAL:
5946	AssertFailed();
5947	break;
5948	case SVGA3D_DECLUSAGE_TESSFACTOR:
5949	AssertFailed();
5950	break;
5951	case SVGA3D_DECLUSAGE_POSITIONT:
5952	AssertFailed(); /* see position_transformed in Wine */
5953	break;
5954	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! test GL_BGRA!! */
5955	glEnableClientState(GL_COLOR_ARRAY);
5956	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5957	glColorPointer(size, type, pVertexDecl[iVertex].array.stride,
5958	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5959	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5960	break;
5961	case SVGA3D_DECLUSAGE_FOG:
5962	glEnableClientState(GL_FOG_COORD_ARRAY);
5963	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5964	pState->ext.glFogCoordPointer(type, pVertexDecl[iVertex].array.stride,
5965	(const GLvoid *)(uintptr_t)pVertexDecl[iVertex].array.offset);
5966	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5967	break;
5968	case SVGA3D_DECLUSAGE_DEPTH:
5969	AssertFailed();
5970	break;
5971	case SVGA3D_DECLUSAGE_SAMPLE:
5972	AssertFailed();
5973	break;
5974	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
5975	}
5976	}
5977
5978	#ifdef LOG_ENABLED
5979	if (pVertexDecl[iVertex].array.stride == 0)
5980	Log(("vmsvga3dDrawPrimitives: stride == 0! Can be valid\n"));
5981	#endif
5982	}
5983
5984	return VINF_SUCCESS;
5985	}
5986
5987	int vmsvga3dDrawPrimitivesCleanupVertexDecls(PVMSVGA3DSTATE pState, PVMSVGA3DCONTEXT pContext, uint32_t iVertexDeclBase, uint32_t numVertexDecls, SVGA3dVertexDecl *pVertexDecl)
5988	{
5989	/* Setup the vertex declarations. */
5990	for (unsigned iVertex = 0; iVertex < numVertexDecls; iVertex++)
5991	{
5992	if (pContext->state.shidVertex != SVGA_ID_INVALID)
5993	{
5994	/* Use numbered vertex arrays when shaders are active. */
5995	pState->ext.glDisableVertexAttribArray(iVertexDeclBase + iVertex);
5996	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
5997	}
5998	else
5999	{
6000	/* Use the predefined selection of vertex streams for the fixed pipeline. */
6001	switch (pVertexDecl[iVertex].identity.usage)
6002	{
6003	case SVGA3D_DECLUSAGE_POSITION:
6004	glDisableClientState(GL_VERTEX_ARRAY);
6005	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6006	break;
6007	case SVGA3D_DECLUSAGE_BLENDWEIGHT:
6008	break;
6009	case SVGA3D_DECLUSAGE_BLENDINDICES:
6010	break;
6011	case SVGA3D_DECLUSAGE_NORMAL:
6012	glDisableClientState(GL_NORMAL_ARRAY);
6013	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6014	break;
6015	case SVGA3D_DECLUSAGE_PSIZE:
6016	break;
6017	case SVGA3D_DECLUSAGE_TEXCOORD:
6018	/* Specify the affected texture unit. */
6019	#if VBOX_VMSVGA3D_GL_HACK_LEVEL >= 0x103
6020	glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6021	#else
6022	pState->ext.glClientActiveTexture(GL_TEXTURE0 + pVertexDecl[iVertex].identity.usageIndex);
6023	#endif
6024	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
6025	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6026	break;
6027	case SVGA3D_DECLUSAGE_TANGENT:
6028	break;
6029	case SVGA3D_DECLUSAGE_BINORMAL:
6030	break;
6031	case SVGA3D_DECLUSAGE_TESSFACTOR:
6032	break;
6033	case SVGA3D_DECLUSAGE_POSITIONT:
6034	break;
6035	case SVGA3D_DECLUSAGE_COLOR: /** @todo color component order not identical!! */
6036	glDisableClientState(GL_COLOR_ARRAY);
6037	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6038	break;
6039	case SVGA3D_DECLUSAGE_FOG:
6040	glDisableClientState(GL_FOG_COORD_ARRAY);
6041	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6042	break;
6043	case SVGA3D_DECLUSAGE_DEPTH:
6044	break;
6045	case SVGA3D_DECLUSAGE_SAMPLE:
6046	break;
6047	case SVGA3D_DECLUSAGE_MAX: AssertFailed(); break; /* shut up gcc */
6048	}
6049	}
6050	}
6051	/* Unbind the vertex buffer after usage. */
6052	pState->ext.glBindBuffer(GL_ARRAY_BUFFER, 0);
6053	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6054	return VINF_SUCCESS;
6055	}
6056
6057	int vmsvga3dDrawPrimitives(PVGASTATE pThis, uint32_t cid, uint32_t numVertexDecls, SVGA3dVertexDecl pVertexDecl, uint32_t numRanges, SVGA3dPrimitiveRange pRange, uint32_t cVertexDivisor, SVGA3dVertexDivisor *pVertexDivisor)
6058	{
6059	PVMSVGA3DCONTEXT pContext;
6060	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6061	AssertReturn(pState, VERR_INTERNAL_ERROR);
6062	int rc = VERR_NOT_IMPLEMENTED;
6063	uint32_t iCurrentVertex;
6064
6065	Log(("vmsvga3dDrawPrimitives cid=%x numVertexDecls=%d numRanges=%d, cVertexDivisor=%d\n", cid, numVertexDecls, numRanges, cVertexDivisor));
6066
6067	AssertReturn(numVertexDecls && numVertexDecls <= SVGA3D_MAX_VERTEX_ARRAYS, VERR_INVALID_PARAMETER);
6068	AssertReturn(numRanges && numRanges <= SVGA3D_MAX_DRAW_PRIMITIVE_RANGES, VERR_INVALID_PARAMETER);
6069	AssertReturn(!cVertexDivisor \|\| cVertexDivisor == numVertexDecls, VERR_INVALID_PARAMETER);
6070	/** @todo Non-zero cVertexDivisor */
6071	Assert(!cVertexDivisor);
6072
6073	if ( cid >= pState->cContexts
6074	\|\| pState->papContexts[cid]->id != cid)
6075	{
6076	Log(("vmsvga3dDrawPrimitives invalid context id!\n"));
6077	return VERR_INVALID_PARAMETER;
6078	}
6079	pContext = pState->papContexts[cid];
6080	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6081
6082	/* Flush any shader changes. */
6083	if (pContext->pShaderContext)
6084	{
6085	uint32_t rtHeight = 0;
6086
6087	if (pContext->sidRenderTarget != SVGA_ID_INVALID)
6088	{
6089	PVMSVGA3DSURFACE pRenderTarget = pState->papSurfaces[pContext->sidRenderTarget];
6090	rtHeight = pRenderTarget->pMipmapLevels[0].size.height;
6091	}
6092
6093	ShaderUpdateState(pContext->pShaderContext, rtHeight);
6094	}
6095
6096	/* Process all vertex declarations. Each vertex buffer is represented by one stream. */
6097	iCurrentVertex = 0;
6098	while (iCurrentVertex < numVertexDecls)
6099	{
6100	uint32_t sidVertex = SVGA_ID_INVALID;
6101	uint32_t iVertex;
6102
6103	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6104	{
6105	if ( sidVertex != SVGA_ID_INVALID
6106	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6107	)
6108	break;
6109	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6110	}
6111
6112	rc = vmsvga3dDrawPrimitivesProcessVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6113	AssertRCReturn(rc, rc);
6114
6115	iCurrentVertex = iVertex;
6116	}
6117
6118	/* Now draw the primitives. */
6119	for (unsigned iPrimitive = 0; iPrimitive < numRanges; iPrimitive++)
6120	{
6121	GLenum modeDraw;
6122	unsigned sidIndex = pRange[iPrimitive].indexArray.surfaceId;
6123	PVMSVGA3DSURFACE pIndexSurface = NULL;
6124	unsigned cVertices;
6125
6126	Log(("Primitive %d: type %s\n", iPrimitive, vmsvga3dPrimitiveType2String(pRange[iPrimitive].primType)));
6127	rc = vmsvga3dPrimitiveType2OGL(pRange[iPrimitive].primType, &modeDraw, pRange[iPrimitive].primitiveCount, &cVertices);
6128	if (RT_FAILURE(rc))
6129	{
6130	AssertRC(rc);
6131	goto internal_error;
6132	}
6133
6134	if (sidIndex != SVGA3D_INVALID_ID)
6135	{
6136	AssertMsg(pRange[iPrimitive].indexWidth == sizeof(uint32_t) \|\| pRange[iPrimitive].indexWidth == sizeof(uint16_t), ("Unsupported primitive width %d\n", pRange[iPrimitive].indexWidth));
6137
6138	if ( sidIndex >= SVGA3D_MAX_SURFACE_IDS
6139	\|\| sidIndex >= pState->cSurfaces
6140	\|\| pState->papSurfaces[sidIndex]->id != sidIndex)
6141	{
6142	Assert(sidIndex < SVGA3D_MAX_SURFACE_IDS);
6143	Assert(sidIndex < pState->cSurfaces && pState->papSurfaces[sidIndex]->id == sidIndex);
6144	rc = VERR_INVALID_PARAMETER;
6145	goto internal_error;
6146	}
6147	pIndexSurface = pState->papSurfaces[sidIndex];
6148	Log(("vmsvga3dDrawPrimitives: index surface %x\n", sidIndex));
6149
6150	if (pIndexSurface->oglId.buffer == OPENGL_INVALID_ID)
6151	{
6152	Log(("vmsvga3dDrawPrimitives: create index buffer fDirty=%d size=%x bytes\n", pIndexSurface->fDirty, pIndexSurface->pMipmapLevels[0].cbSurface));
6153	pContext = &pState->SharedCtx;
6154	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6155
6156	pState->ext.glGenBuffers(1, &pIndexSurface->oglId.buffer);
6157	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6158
6159	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6160	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6161
6162	Assert(pIndexSurface->fDirty);
6163
6164	/** @todo rethink usage dynamic/static */
6165	pState->ext.glBufferData(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->pMipmapLevels[0].cbSurface, pIndexSurface->pMipmapLevels[0].pSurfaceData, GL_DYNAMIC_DRAW);
6166	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6167
6168	pIndexSurface->pMipmapLevels[0].fDirty = false;
6169	pIndexSurface->fDirty = false;
6170
6171	pIndexSurface->flags \|= SVGA3D_SURFACE_HINT_INDEXBUFFER;
6172
6173	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, OPENGL_INVALID_ID);
6174	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6175
6176	pContext = pState->papContexts[cid];
6177	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6178	}
6179	Assert(pIndexSurface->fDirty == false);
6180
6181	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pIndexSurface->oglId.buffer);
6182	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6183	}
6184
6185	if (!pIndexSurface)
6186	{
6187	/* Render without an index buffer */
6188	Log(("DrawPrimitive %x cPrimitives=%d cVertices=%d index index bias=%d\n", modeDraw, pRange[iPrimitive].primitiveCount, cVertices, pRange[iPrimitive].indexBias));
6189	glDrawArrays(modeDraw, pRange[iPrimitive].indexBias, cVertices);
6190	}
6191	else
6192	{
6193	Assert(pRange[iPrimitive].indexBias >= 0); /** @todo indexBias */
6194	Assert(pRange[iPrimitive].indexWidth == pRange[iPrimitive].indexArray.stride);
6195
6196	/* Render with an index buffer */
6197	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));
6198	if (pRange[iPrimitive].indexBias == 0)
6199	glDrawElements(modeDraw,
6200	cVertices,
6201	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6202	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset); / byte offset in indices buffer */
6203	else
6204	pState->ext.glDrawElementsBaseVertex(modeDraw,
6205	cVertices,
6206	(pRange[iPrimitive].indexWidth == sizeof(uint16_t)) ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
6207	(GLvoid )(uintptr_t)pRange[iPrimitive].indexArray.offset, / byte offset in indices buffer */
6208	pRange[iPrimitive].indexBias); /* basevertex */
6209
6210	/* Unbind the index buffer after usage. */
6211	pState->ext.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
6212	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6213	}
6214	VMSVGA3D_CHECK_LAST_ERROR(pState, pContext);
6215	}
6216
6217	internal_error:
6218
6219	/* Deactivate the vertex declarations. */
6220	iCurrentVertex = 0;
6221	while (iCurrentVertex < numVertexDecls)
6222	{
6223	uint32_t sidVertex = SVGA_ID_INVALID;
6224	uint32_t iVertex;
6225
6226	for (iVertex = iCurrentVertex; iVertex < numVertexDecls; iVertex++)
6227	{
6228	if ( sidVertex != SVGA_ID_INVALID
6229	&& pVertexDecl[iVertex].array.surfaceId != sidVertex
6230	)
6231	break;
6232	sidVertex = pVertexDecl[iVertex].array.surfaceId;
6233	}
6234
6235	rc = vmsvga3dDrawPrimitivesCleanupVertexDecls(pState, pContext, iCurrentVertex, iVertex - iCurrentVertex, &pVertexDecl[iCurrentVertex]);
6236	AssertRCReturn(rc, rc);
6237
6238	iCurrentVertex = iVertex;
6239	}
6240	#ifdef DEBUG
6241	for (uint32_t i = 0; i < RT_ELEMENTS(pContext->aSidActiveTexture); i++)
6242	{
6243	if (pContext->aSidActiveTexture[i] != SVGA3D_INVALID_ID)
6244	{
6245	GLint activeTexture = 0;
6246	GLint activeTextureUnit = 0;
6247
6248	glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTextureUnit);
6249	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6250	pState->ext.glActiveTexture(GL_TEXTURE0 + i);
6251	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6252
6253	glGetIntegerv(GL_TEXTURE_BINDING_2D, &activeTexture);
6254	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6255	pState->ext.glActiveTexture(activeTextureUnit);
6256	VMSVGA3D_CHECK_LAST_ERROR_WARN(pState, pContext);
6257
6258	# 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. */
6259	if (pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0] != SVGA3D_INVALID_ID)
6260	{
6261	PVMSVGA3DSURFACE pTexture;
6262	pTexture = pState->papSurfaces[pContext->aSidActiveTexture[activeTextureUnit - GL_TEXTURE0]];
6263
6264	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture, ("%x vs %x unit %d - %d\n", pTexture->oglId.texture, activeTexture, i, activeTextureUnit - GL_TEXTURE0));
6265	}
6266	# else
6267	PVMSVGA3DSURFACE pTexture = pState->papSurfaces[pContext->aSidActiveTexture[i]];
6268	AssertMsg(pTexture->id == pContext->aSidActiveTexture[i], ("%x vs %x\n", pTexture->id == pContext->aSidActiveTexture[i]));
6269	AssertMsg(pTexture->oglId.texture == (GLuint)activeTexture,
6270	("%x vs %x unit %d (active unit %d) sid=%x\n", pTexture->oglId.texture, activeTexture, i,
6271	activeTextureUnit - GL_TEXTURE0, pContext->aSidActiveTexture[i]));
6272	# endif
6273	}
6274	}
6275	#endif
6276
6277	#ifdef DEBUG_GFX_WINDOW
6278	if (pContext->aSidActiveTexture[0])
6279	{
6280	SVGA3dCopyRect rect;
6281
6282	rect.srcx = rect.srcy = rect.x = rect.y = 0;
6283	rect.w = 800;
6284	rect.h = 600;
6285	vmsvga3dCommandPresent(pThis, pContext->sidRenderTarget, 0, NULL);
6286	}
6287	#endif
6288	return rc;
6289	}
6290
6291
6292	int vmsvga3dShaderDefine(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type, uint32_t cbData, uint32_t *pShaderData)
6293	{
6294	PVMSVGA3DCONTEXT pContext;
6295	PVMSVGA3DSHADER pShader;
6296	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6297	AssertReturn(pState, VERR_NO_MEMORY);
6298	int rc;
6299
6300	Log(("vmsvga3dShaderDefine cid=%x shid=%x type=%s cbData=%x\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cbData));
6301	Log3(("shader code:\n%.*Rhxd\n", cbData, pShaderData));
6302
6303	if ( cid >= pState->cContexts
6304	\|\| pState->papContexts[cid]->id != cid)
6305	{
6306	Log(("vmsvga3dShaderDefine invalid context id!\n"));
6307	return VERR_INVALID_PARAMETER;
6308	}
6309	pContext = pState->papContexts[cid];
6310	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6311
6312	AssertReturn(shid < SVGA3D_MAX_SHADER_IDS, VERR_INVALID_PARAMETER);
6313	if (type == SVGA3D_SHADERTYPE_VS)
6314	{
6315	if (shid >= pContext->cVertexShaders)
6316	{
6317	void pvNew = RTMemRealloc(pContext->paVertexShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6318	AssertReturn(pvNew, VERR_NO_MEMORY);
6319	pContext->paVertexShader = (PVMSVGA3DSHADER)pvNew;
6320	memset(&pContext->paVertexShader[pContext->cVertexShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cVertexShaders));
6321	for (uint32_t i = pContext->cVertexShaders; i < shid + 1; i++)
6322	pContext->paVertexShader[i].id = SVGA3D_INVALID_ID;
6323	pContext->cVertexShaders = shid + 1;
6324	}
6325	/* If one already exists with this id, then destroy it now. */
6326	if (pContext->paVertexShader[shid].id != SVGA3D_INVALID_ID)
6327	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paVertexShader[shid].type);
6328
6329	pShader = &pContext->paVertexShader[shid];
6330	}
6331	else
6332	{
6333	Assert(type == SVGA3D_SHADERTYPE_PS);
6334	if (shid >= pContext->cPixelShaders)
6335	{
6336	void pvNew = RTMemRealloc(pContext->paPixelShader, sizeof(VMSVGA3DSHADER) (shid + 1));
6337	AssertReturn(pvNew, VERR_NO_MEMORY);
6338	pContext->paPixelShader = (PVMSVGA3DSHADER)pvNew;
6339	memset(&pContext->paPixelShader[pContext->cPixelShaders], 0, sizeof(VMSVGA3DSHADER) * (shid + 1 - pContext->cPixelShaders));
6340	for (uint32_t i = pContext->cPixelShaders; i < shid + 1; i++)
6341	pContext->paPixelShader[i].id = SVGA3D_INVALID_ID;
6342	pContext->cPixelShaders = shid + 1;
6343	}
6344	/* If one already exists with this id, then destroy it now. */
6345	if (pContext->paPixelShader[shid].id != SVGA3D_INVALID_ID)
6346	vmsvga3dShaderDestroy(pThis, cid, shid, pContext->paPixelShader[shid].type);
6347
6348	pShader = &pContext->paPixelShader[shid];
6349	}
6350
6351	memset(pShader, 0, sizeof(*pShader));
6352	pShader->id = shid;
6353	pShader->cid = cid;
6354	pShader->type = type;
6355	pShader->cbData = cbData;
6356	pShader->pShaderProgram = RTMemAllocZ(cbData);
6357	AssertReturn(pShader->pShaderProgram, VERR_NO_MEMORY);
6358	memcpy(pShader->pShaderProgram, pShaderData, cbData);
6359
6360	#ifdef DUMP_SHADER_DISASSEMBLY
6361	LPD3DXBUFFER pDisassembly;
6362	HRESULT hr = D3DXDisassembleShader((const DWORD *)pShaderData, FALSE, NULL, &pDisassembly);
6363	if (hr == D3D_OK)
6364	{
6365	Log(("Shader disassembly:\n%s\n", pDisassembly->GetBufferPointer()));
6366	pDisassembly->Release();
6367	}
6368	#endif
6369
6370	switch (type)
6371	{
6372	case SVGA3D_SHADERTYPE_VS:
6373	rc = ShaderCreateVertexShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pVertexShader);
6374	break;
6375
6376	case SVGA3D_SHADERTYPE_PS:
6377	rc = ShaderCreatePixelShader(pContext->pShaderContext, (const uint32_t *)pShaderData, &pShader->u.pPixelShader);
6378	break;
6379
6380	default:
6381	AssertFailedReturn(VERR_INVALID_PARAMETER);
6382	}
6383	if (rc != VINF_SUCCESS)
6384	{
6385	RTMemFree(pShader->pShaderProgram);
6386	memset(pShader, 0, sizeof(*pShader));
6387	pShader->id = SVGA3D_INVALID_ID;
6388	}
6389
6390	return rc;
6391	}
6392
6393	int vmsvga3dShaderDestroy(PVGASTATE pThis, uint32_t cid, uint32_t shid, SVGA3dShaderType type)
6394	{
6395	PVMSVGA3DCONTEXT pContext;
6396	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6397	AssertReturn(pState, VERR_NO_MEMORY);
6398	PVMSVGA3DSHADER pShader = NULL;
6399	int rc;
6400
6401	Log(("vmsvga3dShaderDestroy cid=%x shid=%x type=%s\n", cid, shid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL"));
6402
6403	if ( cid >= pState->cContexts
6404	\|\| pState->papContexts[cid]->id != cid)
6405	{
6406	Log(("vmsvga3dShaderDestroy invalid context id!\n"));
6407	return VERR_INVALID_PARAMETER;
6408	}
6409	pContext = pState->papContexts[cid];
6410	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6411
6412	if (type == SVGA3D_SHADERTYPE_VS)
6413	{
6414	if ( shid < pContext->cVertexShaders
6415	&& pContext->paVertexShader[shid].id == shid)
6416	{
6417	pShader = &pContext->paVertexShader[shid];
6418	rc = ShaderDestroyVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6419	AssertRC(rc);
6420	}
6421	}
6422	else
6423	{
6424	Assert(type == SVGA3D_SHADERTYPE_PS);
6425	if ( shid < pContext->cPixelShaders
6426	&& pContext->paPixelShader[shid].id == shid)
6427	{
6428	pShader = &pContext->paPixelShader[shid];
6429	rc = ShaderDestroyPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6430	AssertRC(rc);
6431	}
6432	}
6433
6434	if (pShader)
6435	{
6436	if (pShader->pShaderProgram)
6437	RTMemFree(pShader->pShaderProgram);
6438	memset(pShader, 0, sizeof(*pShader));
6439	pShader->id = SVGA3D_INVALID_ID;
6440	}
6441	else
6442	AssertFailedReturn(VERR_INVALID_PARAMETER);
6443
6444	return VINF_SUCCESS;
6445	}
6446
6447	int vmsvga3dShaderSet(PVGASTATE pThis, PVMSVGA3DCONTEXT pContext, uint32_t cid, SVGA3dShaderType type, uint32_t shid)
6448	{
6449	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6450	AssertReturn(pState, VERR_NO_MEMORY);
6451	int rc;
6452
6453	Log(("vmsvga3dShaderSet cid=%x type=%s shid=%d\n", cid, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", shid));
6454
6455	if ( !pContext
6456	&& cid < pState->cContexts
6457	&& pState->papContexts[cid]->id == cid)
6458	pContext = pState->papContexts[cid];
6459	else if (!pContext)
6460	{
6461	AssertMsgFailed(("cid=%#x cContexts=%#x\n", cid, pState->cContexts));
6462	Log(("vmsvga3dShaderSet invalid context id!\n"));
6463	return VERR_INVALID_PARAMETER;
6464	}
6465	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6466
6467	if (type == SVGA3D_SHADERTYPE_VS)
6468	{
6469	/* Save for vm state save/restore. */
6470	pContext->state.shidVertex = shid;
6471	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_VERTEXSHADER;
6472
6473	if ( shid < pContext->cVertexShaders
6474	&& pContext->paVertexShader[shid].id == shid)
6475	{
6476	PVMSVGA3DSHADER pShader = &pContext->paVertexShader[shid];
6477	Assert(type == pShader->type);
6478
6479	rc = ShaderSetVertexShader(pContext->pShaderContext, pShader->u.pVertexShader);
6480	AssertRCReturn(rc, rc);
6481	}
6482	else
6483	if (shid == SVGA_ID_INVALID)
6484	{
6485	/* Unselect shader. */
6486	rc = ShaderSetVertexShader(pContext->pShaderContext, NULL);
6487	AssertRCReturn(rc, rc);
6488	}
6489	else
6490	AssertFailedReturn(VERR_INVALID_PARAMETER);
6491	}
6492	else
6493	{
6494	/* Save for vm state save/restore. */
6495	pContext->state.shidPixel = shid;
6496	pContext->state.u32UpdateFlags \|= VMSVGA3D_UPDATE_PIXELSHADER;
6497
6498	Assert(type == SVGA3D_SHADERTYPE_PS);
6499	if ( shid < pContext->cPixelShaders
6500	&& pContext->paPixelShader[shid].id == shid)
6501	{
6502	PVMSVGA3DSHADER pShader = &pContext->paPixelShader[shid];
6503	Assert(type == pShader->type);
6504
6505	rc = ShaderSetPixelShader(pContext->pShaderContext, pShader->u.pPixelShader);
6506	AssertRCReturn(rc, rc);
6507	}
6508	else
6509	if (shid == SVGA_ID_INVALID)
6510	{
6511	/* Unselect shader. */
6512	rc = ShaderSetPixelShader(pContext->pShaderContext, NULL);
6513	AssertRCReturn(rc, rc);
6514	}
6515	else
6516	AssertFailedReturn(VERR_INVALID_PARAMETER);
6517	}
6518
6519	return VINF_SUCCESS;
6520	}
6521
6522	int vmsvga3dShaderSetConst(PVGASTATE pThis, uint32_t cid, uint32_t reg, SVGA3dShaderType type, SVGA3dShaderConstType ctype, uint32_t cRegisters, uint32_t *pValues)
6523	{
6524	PVMSVGA3DCONTEXT pContext;
6525	PVMSVGA3DSTATE pState = pThis->svga.p3dState;
6526	AssertReturn(pState, VERR_NO_MEMORY);
6527	int rc;
6528
6529	Log(("vmsvga3dShaderSetConst cid=%x reg=%x type=%s cregs=%d ctype=%x\n", cid, reg, (type == SVGA3D_SHADERTYPE_VS) ? "VERTEX" : "PIXEL", cRegisters, ctype));
6530
6531	if ( cid >= pState->cContexts
6532	\|\| pState->papContexts[cid]->id != cid)
6533	{
6534	Log(("vmsvga3dShaderSetConst invalid context id!\n"));
6535	return VERR_INVALID_PARAMETER;
6536	}
6537	pContext = pState->papContexts[cid];
6538	VMSVGA3D_SET_CURRENT_CONTEXT(pState, pContext);
6539
6540	for (uint32_t i = 0; i < cRegisters; i++)
6541	{
6542	#ifdef LOG_ENABLED
6543	switch (ctype)
6544	{
6545	case SVGA3D_CONST_TYPE_FLOAT:
6546	{
6547	float pValuesF = (float )pValues;
6548	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)));
6549	break;
6550	}
6551
6552	case SVGA3D_CONST_TYPE_INT:
6553	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6554	break;
6555
6556	case SVGA3D_CONST_TYPE_BOOL:
6557	Log(("Constant %d: value=%x-%x-%x-%x\n", reg + i, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]));
6558	break;
6559	}
6560	#endif
6561	vmsvga3dSaveShaderConst(pContext, reg + i, type, ctype, pValues[i4 + 0], pValues[i4 + 1], pValues[i4 + 2], pValues[i4 + 3]);
6562	}
6563
6564	switch (type)
6565	{
6566	case SVGA3D_SHADERTYPE_VS:
6567	switch (ctype)
6568	{
6569	case SVGA3D_CONST_TYPE_FLOAT:
6570	rc = ShaderSetVertexShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6571	break;
6572
6573	case SVGA3D_CONST_TYPE_INT:
6574	rc = ShaderSetVertexShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6575	break;
6576
6577	case SVGA3D_CONST_TYPE_BOOL:
6578	rc = ShaderSetVertexShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6579	break;
6580
6581	default:
6582	AssertFailedReturn(VERR_INVALID_PARAMETER);
6583	}
6584	AssertRCReturn(rc, rc);
6585	break;
6586
6587	case SVGA3D_SHADERTYPE_PS:
6588	switch (ctype)
6589	{
6590	case SVGA3D_CONST_TYPE_FLOAT:
6591	rc = ShaderSetPixelShaderConstantF(pContext->pShaderContext, reg, (const float *)pValues, cRegisters);
6592	break;
6593
6594	case SVGA3D_CONST_TYPE_INT:
6595	rc = ShaderSetPixelShaderConstantI(pContext->pShaderContext, reg, (const int32_t *)pValues, cRegisters);
6596	break;
6597
6598	case SVGA3D_CONST_TYPE_BOOL:
6599	rc = ShaderSetPixelShaderConstantB(pContext->pShaderContext, reg, (const uint8_t *)pValues, cRegisters);
6600	break;
6601
6602	default:
6603	AssertFailedReturn(VERR_INVALID_PARAMETER);
6604	}
6605	AssertRCReturn(rc, rc);
6606	break;
6607
6608	default:
6609	AssertFailedReturn(VERR_INVALID_PARAMETER);
6610	}
6611
6612	return VINF_SUCCESS;
6613	}
6614
6615
6616	int vmsvga3dQueryBegin(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type)
6617	{
6618	AssertFailed();
6619	return VERR_NOT_IMPLEMENTED;
6620	}
6621
6622	int vmsvga3dQueryEnd(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6623	{
6624	AssertFailed();
6625	return VERR_NOT_IMPLEMENTED;
6626	}
6627
6628	int vmsvga3dQueryWait(PVGASTATE pThis, uint32_t cid, SVGA3dQueryType type, SVGAGuestPtr guestResult)
6629	{
6630	AssertFailed();
6631	return VERR_NOT_IMPLEMENTED;
6632	}
6633

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA-SVGA3d-ogl.cpp@ 57518

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